Merged Minetest

211 files changed, 5045 insertions, 4647 deletions

diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 3d6d1b0ea..b8ce69f1d 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -351,6 +351,10 @@ else()
 	if (ICONV_LIBRARY)
 		set(PLATFORM_LIBS ${PLATFORM_LIBS} ${ICONV_LIBRARY})
 	endif()
+	if (HAIKU)
+		set(PLATFORM_LIBS ${PLATFORM_LIBS} intl network)
+	endif()
+
 endif()
 
 check_include_files(endian.h HAVE_ENDIAN_H)
@@ -673,10 +677,11 @@ endif(BUILD_SERVER)
 # Blacklisted locales that don't work.
 # see issue #4638
 set(GETTEXT_BLACKLISTED_LOCALES
-	be
+	ar
 	he
-	ko
 	ky
+	ms_Arab
+	th
 )
 
 option(APPLY_LOCALE_BLACKLIST "Use a blacklist to avoid broken locales" TRUE)
@@ -697,21 +702,14 @@ include(CheckCSourceCompiles)
 
 if(MSVC)
 	# Visual Studio
-	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /D WIN32_LEAN_AND_MEAN /MP")
+	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /D WIN32_LEAN_AND_MEAN")
 	# EHa enables SEH exceptions (used for catching segfaults)
-	set(CMAKE_CXX_FLAGS_RELEASE "/EHa /Ox /GL /FD /MD /GS- /Zi /fp:fast /D NDEBUG /D _HAS_ITERATOR_DEBUGGING=0 /TP")
+	set(CMAKE_CXX_FLAGS_RELEASE "/EHa /Ox /MD /GS- /Zi /fp:fast /D NDEBUG /D _HAS_ITERATOR_DEBUGGING=0")
 	if(CMAKE_SIZEOF_VOID_P EQUAL 4)
 		set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} /arch:SSE")
 	endif()
-	
-	if(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
-		set(CMAKE_EXE_LINKER_FLAGS_RELEASE "/INCREMENTAL:NO /DEBUG /OPT:REF /OPT:ICF")
-	else()
-		set(CMAKE_EXE_LINKER_FLAGS_RELEASE "/LTCG /INCREMENTAL:NO /DEBUG /OPT:REF /OPT:ICF")
-	endif()
-
-	set(CMAKE_EXE_LINKER_FLAGS_RELEASE "${CMAKE_EXE_LINKER_FLAGS_RELEASE} /SUBSYSTEM:WINDOWS /ENTRY:mainCRTStartup")
 
+	set(CMAKE_EXE_LINKER_FLAGS_RELEASE "/INCREMENTAL:NO /DEBUG /OPT:REF /OPT:ICF /SUBSYSTEM:WINDOWS /ENTRY:mainCRTStartup")
 
 	set(CMAKE_CXX_FLAGS_SEMIDEBUG "/MDd /Zi /Ob0 /O1 /RTC1")
 
@@ -722,6 +720,19 @@ if(MSVC)
 	# Flags for C files (sqlite)
 	# /MD = dynamically link to MSVCRxxx.dll
 	set(CMAKE_C_FLAGS_RELEASE "/O2 /Ob2 /MD")
+
+	# Flags that cannot be shared between cl and clang-cl
+	# https://clang.llvm.org/docs/UsersManual.html#clang-cl
+	if(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
+		set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fuse-ld=lld")
+
+		# Disable pragma-pack warning
+		set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -Wno-pragma-pack")
+	else()
+		set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /MP")
+		set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} /TP /FD /GL")
+		set(CMAKE_EXE_LINKER_FLAGS_RELEASE "${CMAKE_EXE_LINKER_FLAGS_RELEASE} /LTCG")
+	endif()
 else()
 	# GCC or compatible compilers such as Clang
 	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
diff --git a/src/activeobject.h b/src/activeobject.h
index 85e160d10..0829858ad 100644
--- a/src/activeobject.h
+++ b/src/activeobject.h
@@ -120,9 +120,9 @@ public:
 
 
 	virtual void setAttachment(int parent_id, const std::string &bone, v3f position,
-			v3f rotation) {}
+			v3f rotation, bool force_visible) {}
 	virtual void getAttachment(int *parent_id, std::string *bone, v3f *position,
-			v3f *rotation) const {}
+			v3f *rotation, bool *force_visible) const {}
 	virtual void clearChildAttachments() {}
 	virtual void clearParentAttachment() {}
 	virtual void addAttachmentChild(int child_id) {}
diff --git a/src/chat.cpp b/src/chat.cpp
index c3ed59804..2f65e68b3 100644
--- a/src/chat.cpp
+++ b/src/chat.cpp
@@ -123,14 +123,14 @@ void ChatBuffer::deleteByAge(f32 maxAge)
 	deleteOldest(count);
 }
 
-u32 ChatBuffer::getColumns() const
+u32 ChatBuffer::getRows() const
 {
-	return m_cols;
+	return m_rows;
 }
 
-u32 ChatBuffer::getRows() const
+void ChatBuffer::scrollTop()
 {
-	return m_rows;
+	m_scroll = getTopScrollPos();
 }
 
 void ChatBuffer::reformat(u32 cols, u32 rows)
@@ -220,11 +220,6 @@ void ChatBuffer::scrollBottom()
 	m_scroll = getBottomScrollPos();
 }
 
-void ChatBuffer::scrollTop()
-{
-	m_scroll = getTopScrollPos();
-}
-
 u32 ChatBuffer::formatChatLine(const ChatLine& line, u32 cols,
 		std::vector<ChatFormattedLine>& destination) const
 {
diff --git a/src/chat.h b/src/chat.h
index f84ece206..0b98e4d3c 100644
--- a/src/chat.h
+++ b/src/chat.h
@@ -94,8 +94,6 @@ public:
 	// Delete lines older than maxAge.
 	void deleteByAge(f32 maxAge);
 
-	// Get number of columns, 0 if reformat has not been called yet.
-	u32 getColumns() const;
 	// Get number of rows, 0 if reformat has not been called yet.
 	u32 getRows() const;
 	// Update console size and reformat all formatted lines.
diff --git a/src/client/camera.cpp b/src/client/camera.cpp
index c9e8fab6a..398bc8377 100644
--- a/src/client/camera.cpp
+++ b/src/client/camera.cpp
@@ -30,7 +30,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "wieldmesh.h"
 #include "noise.h"         // easeCurve
 #include "sound.h"
-#include "event.h"
+#include "mtevent.h"
 #include "nodedef.h"
 #include "util/numeric.h"
 #include "constants.h"
diff --git a/src/client/camera.h b/src/client/camera.h
index 3a59637bc..16a1961be 100644
--- a/src/client/camera.h
+++ b/src/client/camera.h
@@ -169,8 +169,6 @@ public:
 
 	void removeNametag(Nametag *nametag);
 
-	const std::list<Nametag *> &getNametags() { return m_nametags; }
-
 	void drawNametags();
 
 	inline void addArmInertia(f32 player_yaw);
diff --git a/src/client/client.cpp b/src/client/client.cpp
index aa3e257ac..9bbb57668 100644
--- a/src/client/client.cpp
+++ b/src/client/client.cpp
@@ -130,6 +130,7 @@ Client::Client(
 	if (g_settings->getBool("enable_minimap")) {
 		m_minimap = new Minimap(this);
 	}
+
 	m_cache_save_interval = g_settings->getU16("server_map_save_interval");
 }
 
@@ -241,18 +242,13 @@ void Client::scanModSubfolder(const std::string &mod_name, const std::string &mo
 		infostream << "Client::scanModSubfolder(): Loading \"" << real_path
 				<< "\" as \"" << vfs_path << "\"." << std::endl;
 
-		std::ifstream is(real_path, std::ios::binary | std::ios::ate);
-		if(!is.good()) {
+		std::string contents;
+		if (!fs::ReadFile(real_path, contents)) {
 			errorstream << "Client::scanModSubfolder(): Can't read file \""
 					<< real_path << "\"." << std::endl;
 			continue;
 		}
-		auto size = is.tellg();
-		std::string contents(size, '\0');
-		is.seekg(0);
-		is.read(&contents[0], size);
 
-		infostream << "  size: " << size << " bytes" << std::endl;
 		m_mod_vfs.emplace(vfs_path, contents);
 	}
 }
@@ -333,6 +329,8 @@ Client::~Client()
 	}
 
 	delete m_minimap;
+	m_minimap = nullptr;
+
 	delete m_media_downloader;
 }
 
@@ -1310,7 +1308,7 @@ void Client::sendPlayerPos(v3f pos)
 			player->last_pitch        == player->getPitch()    &&
 			player->last_yaw          == player->getYaw()      &&
 			player->last_keyPressed   == player->keyPressed    &&
-			player->last_camera_fov   == camera_fov              &&
+			player->last_camera_fov   == camera_fov            &&
 			player->last_wanted_range == wanted_range)
 		return;
 
@@ -1671,15 +1669,13 @@ void Client::updateAllMapBlocks()
 	for (s16 Z = currentBlock.Z - 2; Z <= currentBlock.Z + 2; Z++)
 		addUpdateMeshTask(v3s16(X, Y, Z), false, true);
 	
-	std::map<v2s16, MapSector*> *sectors = m_env.getMap().getSectorsPtr();
+	Map &map = m_env.getMap();
 	
-	for (auto &sector_it : *sectors) {
-		MapSector *sector = sector_it.second;
-		MapBlockVect blocks;
-		sector->getBlocks(blocks);
-		for (MapBlock *block : blocks) {
-			addUpdateMeshTask(block->getPos(), false, false);
-		}
+	std::vector<v3s16> positions;
+	map.listAllLoadedBlocks(positions);
+	
+	for (v3s16 p : positions) {
+		addUpdateMeshTask(p, false, false);
 	}
 }
 
@@ -1693,11 +1689,6 @@ ClientEvent *Client::getClientEvent()
 	return event;
 }
 
-bool Client::connectedToServer()
-{
-	return m_con->Connected();
-}
-
 const Address Client::getServerAddress()
 {
 	return m_con->GetPeerAddress(PEER_ID_SERVER);
diff --git a/src/client/client.h b/src/client/client.h
index 7455d78dc..979636eba 100644
--- a/src/client/client.h
+++ b/src/client/client.h
@@ -222,6 +222,7 @@ public:
 	void handleCommand_CSMRestrictionFlags(NetworkPacket *pkt);
 	void handleCommand_PlayerSpeed(NetworkPacket *pkt);
 	void handleCommand_MediaPush(NetworkPacket *pkt);
+	void handleCommand_MinimapModes(NetworkPacket *pkt);
 
 	void ProcessData(NetworkPacket *pkt);
 
@@ -338,7 +339,6 @@ public:
 	u16 getProtoVersion()
 	{ return m_proto_ver; }
 
-	bool connectedToServer();
 	void confirmRegistration();
 	bool m_is_registration_confirmation_state = false;
 	bool m_simple_singleplayer_mode;
diff --git a/src/client/clientenvironment.cpp b/src/client/clientenvironment.cpp
index 3f82bd316..2b50fbf64 100644
--- a/src/client/clientenvironment.cpp
+++ b/src/client/clientenvironment.cpp
@@ -25,7 +25,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "clientmap.h"
 #include "scripting_client.h"
 #include "mapblock_mesh.h"
-#include "event.h"
+#include "mtevent.h"
 #include "collision.h"
 #include "nodedef.h"
 #include "profiler.h"
@@ -183,84 +183,61 @@ void ClientEnvironment::step(float dtime)
 	if(dtime > 0.5)
 		dtime = 0.5;
 
-	f32 dtime_downcount = dtime;
-
 	/*
 		Stuff that has a maximum time increment
 	*/
 
-	u32 loopcount = 0;
-	do
-	{
-		loopcount++;
-
-		f32 dtime_part;
-		if(dtime_downcount > dtime_max_increment)
-		{
-			dtime_part = dtime_max_increment;
-			dtime_downcount -= dtime_part;
-		}
-		else
-		{
-			dtime_part = dtime_downcount;
-			/*
-				Setting this to 0 (no -=dtime_part) disables an infinite loop
-				when dtime_part is so small that dtime_downcount -= dtime_part
-				does nothing
-			*/
-			dtime_downcount = 0;
-		}
-
+	u32 steps = ceil(dtime / dtime_max_increment);
+	f32 dtime_part = dtime / steps;
+	for (; steps > 0; --steps) {
 		/*
-			Handle local player
+			Local player handling
 		*/
 
-		{
-			// Control local player
-			lplayer->applyControl(dtime_part, this);
-
-			// Apply physics
-			if (!free_move && !is_climbing && ! g_settings->getBool("freecam")) {
-				// Gravity
-				v3f speed = lplayer->getSpeed();
-				if (!lplayer->in_liquid)
-					speed.Y -= lplayer->movement_gravity *
-						lplayer->physics_override_gravity * dtime_part * 2.0f;
-
-				// Liquid floating / sinking
-				if (lplayer->in_liquid && !lplayer->swimming_vertical &&
-						!lplayer->swimming_pitch)
-					speed.Y -= lplayer->movement_liquid_sink * dtime_part * 2.0f;
-
-				// Liquid resistance
-				if (lplayer->in_liquid_stable || lplayer->in_liquid) {
-					// How much the node's viscosity blocks movement, ranges
-					// between 0 and 1. Should match the scale at which viscosity
-					// increase affects other liquid attributes.
-					static const f32 viscosity_factor = 0.3f;
-
-					v3f d_wanted = -speed / lplayer->movement_liquid_fluidity;
-					f32 dl = d_wanted.getLength();
-					if (dl > lplayer->movement_liquid_fluidity_smooth)
-						dl = lplayer->movement_liquid_fluidity_smooth;
-
-					dl *= (lplayer->liquid_viscosity * viscosity_factor) +
-						(1 - viscosity_factor);
-					v3f d = d_wanted.normalize() * (dl * dtime_part * 100.0f);
-					speed += d;
-				}
-
-				lplayer->setSpeed(speed);
+		// Control local player
+		lplayer->applyControl(dtime_part, this);
+
+		// Apply physics
+		if (!free_move && !is_climbing && !g_settings->getBool("freecam")) {
+			// Gravity
+			v3f speed = lplayer->getSpeed();
+			if (!lplayer->in_liquid)
+				speed.Y -= lplayer->movement_gravity *
+					lplayer->physics_override_gravity * dtime_part * 2.0f;
+
+			// Liquid floating / sinking
+			if (lplayer->in_liquid && !lplayer->swimming_vertical &&
+					!lplayer->swimming_pitch)
+				speed.Y -= lplayer->movement_liquid_sink * dtime_part * 2.0f;
+
+			// Liquid resistance
+			if (lplayer->in_liquid_stable || lplayer->in_liquid) {
+				// How much the node's viscosity blocks movement, ranges
+				// between 0 and 1. Should match the scale at which viscosity
+				// increase affects other liquid attributes.
+				static const f32 viscosity_factor = 0.3f;
+
+				v3f d_wanted = -speed / lplayer->movement_liquid_fluidity;
+				f32 dl = d_wanted.getLength();
+				if (dl > lplayer->movement_liquid_fluidity_smooth)
+					dl = lplayer->movement_liquid_fluidity_smooth;
+
+				dl *= (lplayer->liquid_viscosity * viscosity_factor) +
+					(1 - viscosity_factor);
+				v3f d = d_wanted.normalize() * (dl * dtime_part * 100.0f);
+				speed += d;
 			}
 
-			/*
-				Move the lplayer.
-				This also does collision detection.
-			*/
-			lplayer->move(dtime_part, this, position_max_increment,
-				&player_collisions);
+			lplayer->setSpeed(speed);
 		}
-	} while (dtime_downcount > 0.001);
+
+		/*
+			Move the lplayer.
+			This also does collision detection.
+		*/
+		lplayer->move(dtime_part, this, position_max_increment,
+			&player_collisions);
+	}
 
 	bool player_immortal = lplayer->getCAO() && lplayer->getCAO()->isImmortal();
 
@@ -368,21 +345,6 @@ bool isFreeClientActiveObjectId(const u16 id,
 
 }
 
-u16 getFreeClientActiveObjectId(ClientActiveObjectMap &objects)
-{
-	// try to reuse id's as late as possible
-	static u16 last_used_id = 0;
-	u16 startid = last_used_id;
-	for(;;) {
-		last_used_id ++;
-		if (isFreeClientActiveObjectId(last_used_id, objects))
-			return last_used_id;
-
-		if (last_used_id == startid)
-			return 0;
-	}
-}
-
 u16 ClientEnvironment::addActiveObject(ClientActiveObject *object)
 {
 	// Register object. If failed return zero id
diff --git a/src/client/clientlauncher.cpp b/src/client/clientlauncher.cpp
index ce16797e6..29427f609 100644
--- a/src/client/clientlauncher.cpp
+++ b/src/client/clientlauncher.cpp
@@ -327,13 +327,13 @@ void ClientLauncher::init_args(GameStartData &start_data, const Settings &cmd_ar
 		// Join a remote server
 		start_data.address = cmd_args.get("address");
 		start_data.world_path.clear();
+		start_data.name = g_settings->get("name");
 	}
 	if (!start_data.world_path.empty()) {
 		// Start a singleplayer instance
 		start_data.address = "";
 	}
 
-	start_data.name = g_settings->get("name");
 	if (cmd_args.exists("name"))
 		start_data.name = cmd_args.get("name");
 
@@ -419,7 +419,6 @@ bool ClientLauncher::launch_game(std::string &error_message,
 	/* Show the GUI menu
 	 */
 	std::string server_name, server_description;
-	start_data.local_server = false;
 	if (!skip_main_menu) {
 		// Initialize menu data
 		// TODO: Re-use existing structs (GameStartData)
@@ -467,6 +466,9 @@ bool ClientLauncher::launch_game(std::string &error_message,
 
 		start_data.local_server = !menudata.simple_singleplayer_mode &&
 			start_data.address.empty();
+	} else {
+		start_data.local_server = !start_data.world_path.empty() &&
+			start_data.address.empty() && !start_data.name.empty();
 	}
 
 	if (!RenderingEngine::run())
diff --git a/src/client/clientmap.cpp b/src/client/clientmap.cpp
index d41b66741..294687ff8 100644
--- a/src/client/clientmap.cpp
+++ b/src/client/clientmap.cpp
@@ -36,7 +36,7 @@ ClientMap::ClientMap(
 		MapDrawControl &control,
 		s32 id
 ):
-	Map(dout_client, client),
+	Map(client),
 	scene::ISceneNode(RenderingEngine::get_scene_manager()->getRootSceneNode(),
 		RenderingEngine::get_scene_manager(), id),
 	m_client(client),
@@ -122,20 +122,20 @@ void ClientMap::updateDrawList()
 	}
 	m_drawlist.clear();
 
-	v3f camera_position = m_camera_position;
-	v3f camera_direction = m_camera_direction;
-	f32 camera_fov = m_camera_fov;
+	const v3f camera_position = m_camera_position;
+	const v3f camera_direction = m_camera_direction;
 
 	// Use a higher fov to accomodate faster camera movements.
 	// Blocks are cropped better when they are drawn.
-	// Or maybe they aren't? Well whatever.
-	camera_fov *= 1.2;
+	const f32 camera_fov = m_camera_fov * 1.1f;
 
 	v3s16 cam_pos_nodes = floatToInt(camera_position, BS);
 	v3s16 p_blocks_min;
 	v3s16 p_blocks_max;
 	getBlocksInViewRange(cam_pos_nodes, &p_blocks_min, &p_blocks_max);
 
+	// Number of blocks currently loaded by the client
+	u32 blocks_loaded = 0;
 	// Number of blocks with mesh in rendering range
 	u32 blocks_in_range_with_mesh = 0;
 	// Number of blocks occlusion culled
@@ -160,6 +160,7 @@ void ClientMap::updateDrawList()
 		MapSector *sector = sector_it.second;
 		v2s16 sp = sector->getPos();
 
+		blocks_loaded += sector->size();
 		if (!m_control.range_all) {
 			if (sp.X < p_blocks_min.X || sp.X > p_blocks_max.X ||
 					sp.Y < p_blocks_min.Z || sp.Y > p_blocks_max.Z)
@@ -181,8 +182,12 @@ void ClientMap::updateDrawList()
 				if not seen on display
 			*/
 
-			if (block->mesh)
+			if (block->mesh) {
 				block->mesh->updateCameraOffset(m_camera_offset);
+			} else {
+				// Ignore if mesh doesn't exist
+				continue;
+			}
 
 			float range = 100000 * BS;
 			if (!m_control.range_all)
@@ -193,13 +198,6 @@ void ClientMap::updateDrawList()
 					camera_direction, camera_fov, range, &d))
 				continue;
 
-
-			/*
-				Ignore if mesh doesn't exist
-			*/
-			if (!block->mesh)
-				continue;
-
 			blocks_in_range_with_mesh++;
 
 			/*
@@ -228,6 +226,7 @@ void ClientMap::updateDrawList()
 	g_profiler->avg("MapBlock meshes in range [#]", blocks_in_range_with_mesh);
 	g_profiler->avg("MapBlocks occlusion culled [#]", blocks_occlusion_culled);
 	g_profiler->avg("MapBlocks drawn [#]", m_drawlist.size());
+	g_profiler->avg("MapBlocks loaded [#]", blocks_loaded);
 }
 
 struct MeshBufList
@@ -293,13 +292,13 @@ void ClientMap::renderMap(video::IVideoDriver* driver, s32 pass)
 	/*
 		Get animation parameters
 	*/
-	float animation_time = m_client->getAnimationTime();
-	int crack = m_client->getCrackLevel();
-	u32 daynight_ratio = m_client->getEnv().getDayNightRatio();
+	const float animation_time = m_client->getAnimationTime();
+	const int crack = m_client->getCrackLevel();
+	const u32 daynight_ratio = m_client->getEnv().getDayNightRatio();
 
-	v3f camera_position = m_camera_position;
-	v3f camera_direction = m_camera_direction;
-	f32 camera_fov = m_camera_fov;
+	const v3f camera_position = m_camera_position;
+	const v3f camera_direction = m_camera_direction;
+	const f32 camera_fov = m_camera_fov;
 
 	/*
 		Get all blocks and draw all visible ones
diff --git a/src/client/clientmedia.cpp b/src/client/clientmedia.cpp
index 8cd3b6bcc..c4c08c05d 100644
--- a/src/client/clientmedia.cpp
+++ b/src/client/clientmedia.cpp
@@ -260,7 +260,8 @@ void ClientMediaDownloader::initialStep(Client *client)
 			fetch_request.request_id = m_httpfetch_next_id; // == i
 			fetch_request.timeout = m_httpfetch_timeout;
 			fetch_request.connect_timeout = m_httpfetch_timeout;
-			fetch_request.post_data = required_hash_set;
+			fetch_request.method = HTTP_POST;
+			fetch_request.raw_data = required_hash_set;
 			fetch_request.extra_headers.emplace_back(
 				"Content-Type: application/octet-stream");
 
diff --git a/src/client/clouds.cpp b/src/client/clouds.cpp
index 887a62f25..253dee8b9 100644
--- a/src/client/clouds.cpp
+++ b/src/client/clouds.cpp
@@ -170,8 +170,9 @@ void Clouds::render()
 
 	// Read noise
 
-	bool *grid = new bool[m_cloud_radius_i * 2 * m_cloud_radius_i * 2];
-
+	std::vector<char> grid(m_cloud_radius_i * 2 * m_cloud_radius_i * 2); // vector<bool> is broken
+	std::vector<video::S3DVertex> vertices;
+	vertices.reserve(16 * m_cloud_radius_i * m_cloud_radius_i);
 
 	for(s16 zi = -m_cloud_radius_i; zi < m_cloud_radius_i; zi++) {
 		u32 si = (zi + m_cloud_radius_i) * m_cloud_radius_i * 2 + m_cloud_radius_i;
@@ -195,12 +196,7 @@ void Clouds::render()
 	{
 		s16 zi = zi0;
 		s16 xi = xi0;
-		// Draw from front to back (needed for transparency)
-		/*if(zi <= 0)
-			zi = -m_cloud_radius_i - zi;
-		if(xi <= 0)
-			xi = -m_cloud_radius_i - xi;*/
-		// Draw from back to front
+		// Draw from back to front for proper transparency
 		if(zi >= 0)
 			zi = m_cloud_radius_i - zi - 1;
 		if(xi >= 0)
@@ -220,17 +216,10 @@ void Clouds::render()
 			video::S3DVertex(0,0,0, 0,0,0, c_top, 0, 0)
 		};
 
-		/*if(zi <= 0 && xi <= 0){
-			v[0].Color.setBlue(255);
-			v[1].Color.setBlue(255);
-			v[2].Color.setBlue(255);
-			v[3].Color.setBlue(255);
-		}*/
-
-		f32 rx = cloud_size / 2.0f;
+		const f32 rx = cloud_size / 2.0f;
 		// if clouds are flat, the top layer should be at the given height
-		f32 ry = m_enable_3d ? m_params.thickness * BS : 0.0f;
-		f32 rz = cloud_size / 2;
+		const f32 ry = m_enable_3d ? m_params.thickness * BS : 0.0f;
+		const f32 rz = cloud_size / 2;
 
 		for(int i=0; i<num_faces_to_draw; i++)
 		{
@@ -320,15 +309,25 @@ void Clouds::render()
 			v3f pos(p0.X, m_params.height * BS, p0.Y);
 			pos -= intToFloat(m_camera_offset, BS);
 
-			for (video::S3DVertex &vertex : v)
+			for (video::S3DVertex &vertex : v) {
 				vertex.Pos += pos;
-			u16 indices[] = {0,1,2,2,3,0};
-			driver->drawVertexPrimitiveList(v, 4, indices, 2,
-					video::EVT_STANDARD, scene::EPT_TRIANGLES, video::EIT_16BIT);
+				vertices.push_back(vertex);
+			}
 		}
 	}
-
-	delete[] grid;
+	int quad_count = vertices.size() / 4;
+	std::vector<u16> indices;
+	indices.reserve(quad_count * 6);
+	for (int k = 0; k < quad_count; k++) {
+		indices.push_back(4 * k + 0);
+		indices.push_back(4 * k + 1);
+		indices.push_back(4 * k + 2);
+		indices.push_back(4 * k + 2);
+		indices.push_back(4 * k + 3);
+		indices.push_back(4 * k + 0);
+	}
+	driver->drawVertexPrimitiveList(vertices.data(), vertices.size(), indices.data(), 2 * quad_count,
+			video::EVT_STANDARD, scene::EPT_TRIANGLES, video::EIT_16BIT);
 
 	// Restore fog settings
 	driver->setFog(fog_color, fog_type, fog_start, fog_end, fog_density,
@@ -342,14 +341,13 @@ void Clouds::step(float dtime)
 
 void Clouds::update(const v3f &camera_p, const video::SColorf &color_diffuse)
 {
+	video::SColorf ambient(m_params.color_ambient);
+	video::SColorf bright(m_params.color_bright);
 	m_camera_pos = camera_p;
-	m_color.r = MYMIN(MYMAX(color_diffuse.r * m_params.color_bright.getRed(),
-			m_params.color_ambient.getRed()), 255) / 255.0f;
-	m_color.g = MYMIN(MYMAX(color_diffuse.g * m_params.color_bright.getGreen(),
-			m_params.color_ambient.getGreen()), 255) / 255.0f;
-	m_color.b = MYMIN(MYMAX(color_diffuse.b * m_params.color_bright.getBlue(),
-			m_params.color_ambient.getBlue()), 255) / 255.0f;
-	m_color.a = m_params.color_bright.getAlpha() / 255.0f;
+	m_color.r = core::clamp(color_diffuse.r * bright.r, ambient.r, 1.0f);
+	m_color.g = core::clamp(color_diffuse.g * bright.g, ambient.g, 1.0f);
+	m_color.b = core::clamp(color_diffuse.b * bright.b, ambient.b, 1.0f);
+	m_color.a = bright.a;
 
 	// is the camera inside the cloud mesh?
 	m_camera_inside_cloud = false; // default
diff --git a/src/client/content_cao.cpp b/src/client/content_cao.cpp
index e1cebf461..7208212d4 100644
--- a/src/client/content_cao.cpp
+++ b/src/client/content_cao.cpp
@@ -48,6 +48,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include <cmath>
 #include "client/shader.h"
 #include "script/scripting_client.h"
+#include "client/minimap.h"
 
 class Settings;
 struct ToolCapabilities;
@@ -354,6 +355,8 @@ void GenericCAO::initialize(const std::string &data)
 			m_is_local_player = true;
 			m_is_visible = false;
 			player->setCAO(this);
+
+			m_prop.show_on_minimap = false;
 		}
 	}
 
@@ -372,7 +375,7 @@ void GenericCAO::processInitData(const std::string &data)
 	}
 
 	// PROTOCOL_VERSION >= 37
-	m_name = deSerializeString(is);
+	m_name = deSerializeString16(is);
 	m_is_player = readU8(is);
 	m_id = readU16(is);
 	m_position = readV3F32(is);
@@ -382,7 +385,7 @@ void GenericCAO::processInitData(const std::string &data)
 	const u8 num_messages = readU8(is);
 
 	for (int i = 0; i < num_messages; i++) {
-		std::string message = deSerializeLongString(is);
+		std::string message = deSerializeString32(is);
 		processMessage(message);
 	}
 
@@ -457,18 +460,21 @@ void GenericCAO::setChildrenVisible(bool toset)
 	for (u16 cao_id : m_attachment_child_ids) {
 		GenericCAO *obj = m_env->getGenericCAO(cao_id);
 		if (obj) {
-			obj->setVisible(toset);
+			// Check if the entity is forced to appear in first person.
+			obj->setVisible(obj->m_force_visible ? true : toset);
 		}
 	}
 }
 
-void GenericCAO::setAttachment(int parent_id, const std::string &bone, v3f position, v3f rotation)
+void GenericCAO::setAttachment(int parent_id, const std::string &bone,
+		v3f position, v3f rotation, bool force_visible)
 {
 	int old_parent = m_attachment_parent_id;
 	m_attachment_parent_id = parent_id;
 	m_attachment_bone = bone;
 	m_attachment_position = position;
 	m_attachment_rotation = rotation;
+	m_force_visible = force_visible;
 
 	ClientActiveObject *parent = m_env->getActiveObject(parent_id);
 
@@ -480,17 +486,32 @@ void GenericCAO::setAttachment(int parent_id, const std::string &bone, v3f posit
 		if (parent)
 			parent->addAttachmentChild(m_id);
 	}
-	
+
 	updateAttachments();
+
+	// Forcibly show attachments if required by set_attach
+	if (m_force_visible) {
+		m_is_visible = true;
+	} else if (!m_is_local_player) {
+		// Objects attached to the local player should be hidden in first person
+		m_is_visible = !m_attached_to_local ||
+			m_client->getCamera()->getCameraMode() != CAMERA_MODE_FIRST;
+		m_force_visible = false;
+	} else {
+		// Local players need to have this set,
+		// otherwise first person attachments fail.
+		m_is_visible = true;
+	}
 }
 
 void GenericCAO::getAttachment(int *parent_id, std::string *bone, v3f *position,
-	v3f *rotation) const
+	v3f *rotation, bool *force_visible) const
 {
 	*parent_id = m_attachment_parent_id;
 	*bone = m_attachment_bone;
 	*position = m_attachment_position;
 	*rotation = m_attachment_rotation;
+	*force_visible = m_force_visible;
 }
 
 void GenericCAO::clearChildAttachments()
@@ -500,7 +521,7 @@ void GenericCAO::clearChildAttachments()
 		int child_id = *m_attachment_child_ids.begin();
 
 		if (ClientActiveObject *child = m_env->getActiveObject(child_id))
-			child->setAttachment(0, "", v3f(), v3f());
+			child->setAttachment(0, "", v3f(), v3f(), false);
 
 		removeAttachmentChild(child_id);
 	}
@@ -509,9 +530,9 @@ void GenericCAO::clearChildAttachments()
 void GenericCAO::clearParentAttachment()
 {
 	if (m_attachment_parent_id)
-		setAttachment(0, "", m_attachment_position, m_attachment_rotation);
+		setAttachment(0, "", m_attachment_position, m_attachment_rotation, false);
 	else
-		setAttachment(0, "", v3f(), v3f());
+		setAttachment(0, "", v3f(), v3f(), false);
 }
 
 void GenericCAO::addAttachmentChild(int child_id)
@@ -569,6 +590,9 @@ void GenericCAO::removeFromScene(bool permanent)
 		m_client->getCamera()->removeNametag(m_nametag);
 		m_nametag = nullptr;
 	}
+
+	if (m_marker && m_client->getMinimap())
+		m_client->getMinimap()->removeMarker(&m_marker);
 }
 
 void GenericCAO::addToScene(ITextureSource *tsrc)
@@ -797,11 +821,13 @@ void GenericCAO::addToScene(ITextureSource *tsrc)
 		node->setParent(m_matrixnode);
 
 	updateNametag();
+	updateMarker();
 	updateNodePos();
 	updateAnimation();
 	updateBonePosition();
 	updateAttachments();
 	setNodeLight(m_last_light);
+	updateMeshCulling();
 }
 
 void GenericCAO::updateLight(u32 day_night_ratio)
@@ -889,6 +915,26 @@ u16 GenericCAO::getLightPosition(v3s16 *pos)
 	return 3;
 }
 
+void GenericCAO::updateMarker()
+{
+	if (!m_client->getMinimap())
+		return;
+
+	if (!m_prop.show_on_minimap) {
+		if (m_marker)
+			m_client->getMinimap()->removeMarker(&m_marker);
+		return;
+	}
+
+	if (m_marker)
+		return;
+
+	scene::ISceneNode *node = getSceneNode();
+	if (!node)
+		return;
+	m_marker = m_client->getMinimap()->addMarker(node);
+}
+
 void GenericCAO::updateNametag()
 {
 	if (m_is_local_player && ! g_settings->getBool("freecam")) // No nametag for local player
@@ -981,13 +1027,13 @@ void GenericCAO::step(float dtime, ClientEnvironment *env)
 			if (controls.sneak && walking && ! g_settings->getBool("no_slow"))
 				new_speed /= 2;
 
-			if (walking && (controls.LMB || controls.RMB)) {
+			if (walking && (controls.dig || controls.place)) {
 				new_anim = player->local_animations[3];
 				player->last_animation = WD_ANIM;
-			} else if(walking) {
+			} else if (walking) {
 				new_anim = player->local_animations[1];
 				player->last_animation = WALK_ANIM;
-			} else if(controls.LMB || controls.RMB) {
+			} else if (controls.dig || controls.place) {
 				new_anim = player->local_animations[2];
 				player->last_animation = DIG_ANIM;
 			}
@@ -1010,9 +1056,9 @@ void GenericCAO::step(float dtime, ClientEnvironment *env)
 
 			// Update local player animations
 			if ((player->last_animation != old_anim ||
-				m_animation_speed != old_anim_speed) &&
-				player->last_animation != NO_ANIM && allow_update)
-					updateAnimation();
+					m_animation_speed != old_anim_speed) &&
+					player->last_animation != NO_ANIM && allow_update)
+				updateAnimation();
 
 		}
 	}
@@ -1182,6 +1228,7 @@ void GenericCAO::updateTexturePos()
 		int row = m_tx_basepos.Y;
 		int col = m_tx_basepos.X;
 
+		// Yawpitch goes rightwards
 		if (m_tx_select_horiz_by_yawpitch) {
 			if (cam_to_entity.Y > 0.75)
 				col += 5;
@@ -1212,6 +1259,27 @@ void GenericCAO::updateTexturePos()
 		float tys = m_tx_size.Y;
 		setBillboardTextureMatrix(m_spritenode, txs, tys, col, row);
 	}
+
+	else if (m_meshnode) {
+		if (m_prop.visual == "upright_sprite") {
+			int row = m_tx_basepos.Y;
+			int col = m_tx_basepos.X;
+
+			// Animation goes downwards
+			row += m_anim_frame;
+
+			const auto &tx = m_tx_size;
+			v2f t[4] = { // cf. vertices in GenericCAO::addToScene()
+				tx * v2f(col+1, row+1),
+				tx * v2f(col, row+1),
+				tx * v2f(col, row),
+				tx * v2f(col+1, row),
+			};
+			auto mesh = m_meshnode->getMesh();
+			setMeshBufferTextureCoords(mesh->getMeshBuffer(0), t, 4);
+			setMeshBufferTextureCoords(mesh->getMeshBuffer(1), t, 4);
+		}
+	}
 }
 
 // Do not pass by reference, see header.
@@ -1253,7 +1321,7 @@ void GenericCAO::updateTextures(std::string mod)
 		}
 	}
 
-	if (m_animated_meshnode) {
+	else if (m_animated_meshnode) {
 		if (m_prop.visual == "mesh") {
 			for (u32 i = 0; i < m_prop.textures.size() &&
 					i < m_animated_meshnode->getMaterialCount(); ++i) {
@@ -1302,8 +1370,8 @@ void GenericCAO::updateTextures(std::string mod)
 			}
 		}
 	}
-	if(m_meshnode)
-	{
+
+	else if (m_meshnode) {
 		if(m_prop.visual == "cube")
 		{
 			for (u32 i = 0; i < 6; ++i)
@@ -1395,6 +1463,9 @@ void GenericCAO::updateTextures(std::string mod)
 				setMeshColor(mesh, m_prop.colors[0]);
 		}
 	}
+	// Prevent showing the player after changing texture
+	if (m_is_local_player)
+		updateMeshCulling();
 }
 
 void GenericCAO::updateAnimation()
@@ -1564,6 +1635,8 @@ void GenericCAO::processMessage(const std::string &data)
 	u8 cmd = readU8(is);
 	if (cmd == AO_CMD_SET_PROPERTIES) {
 		ObjectProperties newprops;
+		newprops.show_on_minimap = m_is_player; // default
+
 		newprops.deSerialize(is);
 
 		// Check what exactly changed
@@ -1597,6 +1670,8 @@ void GenericCAO::processMessage(const std::string &data)
 
 		if ((m_is_player && !m_is_local_player) && m_prop.nametag.empty())
 			m_prop.nametag = m_name;
+		if (m_is_local_player)
+			m_prop.show_on_minimap = false;
 
 		if (expire_visuals) {
 			expireVisuals();
@@ -1609,6 +1684,7 @@ void GenericCAO::processMessage(const std::string &data)
 					updateTextures(m_current_texture_modifier);
 			}
 			updateNametag();
+			updateMarker();
 		}
 	} else if (cmd == AO_CMD_UPDATE_POSITION) {
 		// Not sent by the server if this object is an attachment.
@@ -1641,7 +1717,7 @@ void GenericCAO::processMessage(const std::string &data)
 		rot_translator.update(m_rotation, false, update_interval);
 		updateNodePos();
 	} else if (cmd == AO_CMD_SET_TEXTURE_MOD) {
-		std::string mod = deSerializeString(is);
+		std::string mod = deSerializeString16(is);
 
 		// immediately reset a engine issued texture modifier if a mod sends a different one
 		if (m_reset_textures_timer > 0) {
@@ -1724,7 +1800,7 @@ void GenericCAO::processMessage(const std::string &data)
 		m_animation_speed = readF32(is);
 		updateAnimationSpeed();
 	} else if (cmd == AO_CMD_SET_BONE_POSITION) {
-		std::string bone = deSerializeString(is);
+		std::string bone = deSerializeString16(is);
 		v3f position = readV3F32(is);
 		v3f rotation = readV3F32(is);
 		m_bone_position[bone] = core::vector2d<v3f>(position, rotation);
@@ -1732,15 +1808,12 @@ void GenericCAO::processMessage(const std::string &data)
 		// updateBonePosition(); now called every step
 	} else if (cmd == AO_CMD_ATTACH_TO) {
 		u16 parent_id = readS16(is);
-		std::string bone = deSerializeString(is);
+		std::string bone = deSerializeString16(is);
 		v3f position = readV3F32(is);
 		v3f rotation = readV3F32(is);
+		bool force_visible = readU8(is); // Returns false for EOF
 
-		setAttachment(parent_id, bone, position, rotation);
-
-		// localplayer itself can't be attached to localplayer
-		if (!m_is_local_player)
-			m_is_visible = !m_attached_to_local;
+		setAttachment(parent_id, bone, position, rotation, force_visible);
 	} else if (cmd == AO_CMD_PUNCHED) {
 		u16 result_hp = readU16(is);
 
@@ -1782,7 +1855,7 @@ void GenericCAO::processMessage(const std::string &data)
 		int armor_groups_size = readU16(is);
 		for(int i=0; i<armor_groups_size; i++)
 		{
-			std::string name = deSerializeString(is);
+			std::string name = deSerializeString16(is);
 			int rating = readS16(is);
 			m_armor_groups[name] = rating;
 		}
@@ -1854,5 +1927,43 @@ std::string GenericCAO::debugInfoText()
 	return os.str();
 }
 
+void GenericCAO::updateMeshCulling()
+{
+	if (!m_is_local_player)
+		return;
+
+	const bool hidden = m_client->getCamera()->getCameraMode() == CAMERA_MODE_FIRST;
+
+	if (m_meshnode && m_prop.visual == "upright_sprite") {
+		u32 buffers = m_meshnode->getMesh()->getMeshBufferCount();
+		for (u32 i = 0; i < buffers; i++) {
+			video::SMaterial &mat = m_meshnode->getMesh()->getMeshBuffer(i)->getMaterial();
+			// upright sprite has no backface culling
+			mat.setFlag(video::EMF_FRONT_FACE_CULLING, hidden);
+		}
+		return;
+	}
+
+	irr::scene::ISceneNode *node = getSceneNode();
+	if (!node)
+		return;
+
+	if (hidden) {
+		// Hide the mesh by culling both front and
+		// back faces. Serious hackyness but it works for our
+		// purposes. This also preserves the skeletal armature.
+		node->setMaterialFlag(video::EMF_BACK_FACE_CULLING,
+			true);
+		node->setMaterialFlag(video::EMF_FRONT_FACE_CULLING,
+			true);
+	} else {
+		// Restore mesh visibility.
+		node->setMaterialFlag(video::EMF_BACK_FACE_CULLING,
+			m_prop.backface_culling);
+		node->setMaterialFlag(video::EMF_FRONT_FACE_CULLING,
+			false);
+	}
+}
+
 // Prototype
 GenericCAO proto_GenericCAO(NULL, NULL);
diff --git a/src/client/content_cao.h b/src/client/content_cao.h
index 75882a074..09c26bd9c 100644
--- a/src/client/content_cao.h
+++ b/src/client/content_cao.h
@@ -30,6 +30,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 class Camera;
 class Client;
 struct Nametag;
+struct MinimapMarker;
 
 /*
 	SmoothTranslator
@@ -84,6 +85,7 @@ private:
 	scene::IBillboardSceneNode *m_spritenode = nullptr;
 	scene::IDummyTransformationSceneNode *m_matrixnode = nullptr;
 	Nametag *m_nametag = nullptr;
+	MinimapMarker *m_marker = nullptr;
 	v3f m_position = v3f(0.0f, 10.0f * BS, 0);
 	v3f m_velocity;
 	v3f m_acceleration;
@@ -109,6 +111,7 @@ private:
 	v3f m_attachment_position;
 	v3f m_attachment_rotation;
 	bool m_attached_to_local = false;
+	bool m_force_visible = false;
 
 	int m_anim_frame = 0;
 	int m_anim_num_frames = 1;
@@ -241,9 +244,10 @@ public:
 	}
 
 	void setChildrenVisible(bool toset);
-	void setAttachment(int parent_id, const std::string &bone, v3f position, v3f rotation);
+	void setAttachment(int parent_id, const std::string &bone, v3f position,
+			v3f rotation, bool force_visible);
 	void getAttachment(int *parent_id, std::string *bone, v3f *position,
-			v3f *rotation) const;
+			v3f *rotation, bool *force_visible) const;
 	void clearChildAttachments();
 	void clearParentAttachment();
 	void addAttachmentChild(int child_id);
@@ -274,6 +278,8 @@ public:
 
 	void updateNametag();
 
+	void updateMarker();
+
 	void updateNodePos();
 
 	void step(float dtime, ClientEnvironment *env);
@@ -308,4 +314,6 @@ public:
 	{
 		return &m_prop;
 	}
+
+	void updateMeshCulling();
 };
diff --git a/src/client/content_mapblock.cpp b/src/client/content_mapblock.cpp
index 3d06584c4..df2748212 100644
--- a/src/client/content_mapblock.cpp
+++ b/src/client/content_mapblock.cpp
@@ -723,7 +723,8 @@ void MapblockMeshGenerator::drawGlasslikeFramedNode()
 	for (auto &glass_tile : glass_tiles)
 		glass_tile = tiles[4];
 
-	u8 param2 = n.getParam2();
+	// Only respect H/V merge bits when paramtype2 = "glasslikeliquidlevel" (liquid tank)
+	u8 param2 = (f->param_type_2 == CPT2_GLASSLIKE_LIQUID_LEVEL) ? n.getParam2() : 0;
 	bool H_merge = !(param2 & 128);
 	bool V_merge = !(param2 & 64);
 	param2 &= 63;
@@ -1454,10 +1455,10 @@ void MapblockMeshGenerator::generate()
 	}
 }
 
-void MapblockMeshGenerator::renderSingle(content_t node)
+void MapblockMeshGenerator::renderSingle(content_t node, u8 param2)
 {
 	p = {0, 0, 0};
-	n = MapNode(node, 0xff, 0x00);
+	n = MapNode(node, 0xff, param2);
 	f = &nodedef->get(n);
 	drawNode();
 }
diff --git a/src/client/content_mapblock.h b/src/client/content_mapblock.h
index 97947cdbe..487d84a07 100644
--- a/src/client/content_mapblock.h
+++ b/src/client/content_mapblock.h
@@ -174,5 +174,5 @@ public:
 public:
 	MapblockMeshGenerator(MeshMakeData *input, MeshCollector *output);
 	void generate();
-	void renderSingle(content_t node);
+	void renderSingle(content_t node, u8 param2 = 0x00);
 };
diff --git a/src/client/event_manager.h b/src/client/event_manager.h
index 3762e89bf..16f7bcf07 100644
--- a/src/client/event_manager.h
+++ b/src/client/event_manager.h
@@ -19,7 +19,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 
 #pragma once
 
-#include "event.h"
+#include "mtevent.h"
 #include <list>
 #include <map>
 
diff --git a/src/client/fontengine.h b/src/client/fontengine.h
index 865b2d3ff..c6efa0df4 100644
--- a/src/client/fontengine.h
+++ b/src/client/fontengine.h
@@ -48,7 +48,7 @@ struct FontSpec {
 
 	u16 getHash()
 	{
-		return (mode << 2) | (bold << 1) | italic;
+		return (mode << 2) | (static_cast<u8>(bold) << 1) | static_cast<u8>(italic);
 	}
 
 	unsigned int size;
diff --git a/src/client/game.cpp b/src/client/game.cpp
index 88607d1d8..cc2a1bc43 100644
--- a/src/client/game.cpp
+++ b/src/client/game.cpp
@@ -96,7 +96,7 @@ Game::Game() :
 		&settingChangedCallback, this);
 	g_settings->registerChangedCallback("joystick_frustum_sensitivity",
 		&settingChangedCallback, this);
-	g_settings->registerChangedCallback("repeat_rightclick_time",
+	g_settings->registerChangedCallback("repeat_place_time",
 		&settingChangedCallback, this);
 	g_settings->registerChangedCallback("noclip",
 		&settingChangedCallback, this);
@@ -164,7 +164,7 @@ Game::~Game()
 		&settingChangedCallback, this);
 	g_settings->deregisterChangedCallback("mouse_sensitivity",
 		&settingChangedCallback, this);
-	g_settings->deregisterChangedCallback("repeat_rightclick_time",
+	g_settings->deregisterChangedCallback("repeat_place_time",
 		&settingChangedCallback, this);
 	g_settings->deregisterChangedCallback("noclip",
 		&settingChangedCallback, this);
@@ -476,7 +476,8 @@ bool Game::createSingleplayerServer(const std::string &map_dir,
 		return false;
 	}
 
-	server = new Server(map_dir, gamespec, simple_singleplayer_mode, bind_addr, false);
+	server = new Server(map_dir, gamespec, simple_singleplayer_mode, bind_addr,
+			false, nullptr, error_message);
 	server->start();
 
 	return true;
@@ -545,7 +546,7 @@ bool Game::createClient(const GameStartData &start_data)
 
 	/* Skybox
 	 */
-	sky = new Sky(-1, texture_src);
+	sky = new Sky(-1, texture_src, shader_src);
 	scsf->setSky(sky);
 	skybox = NULL;	// This is used/set later on in the main run loop
 
@@ -591,11 +592,9 @@ bool Game::createClient(const GameStartData &start_data)
 	}
 
 	mapper = client->getMinimap();
-	if (mapper) {
-		mapper->setMinimapMode(MINIMAP_MODE_OFF);
-		if (client->modsLoaded())
-			client->getScript()->on_minimap_ready(mapper);
-	}
+
+	if (mapper && client->modsLoaded())
+		client->getScript()->on_minimap_ready(mapper);
 
 	return true;
 }
@@ -834,7 +833,10 @@ bool Game::getServerContent(bool *aborted)
 			std::stringstream message;
 			std::fixed(message);
 			message.precision(0);
-			message << gettext("Media...") << " " << (client->mediaReceiveProgress()*100) << "%";
+			float receive = client->mediaReceiveProgress() * 100;
+			message << gettext("Media...");
+			if (receive > 0)
+				message << " " << receive << "%";
 			message.precision(2);
 
 			if ((USE_CURL == 0) ||
@@ -1228,15 +1230,11 @@ void Game::processItemSelection(u16 *new_playeritem)
 
 	s32 dir = wheel;
 
-	if (input->joystick.wasKeyDown(KeyType::SCROLL_DOWN) ||
-			wasKeyDown(KeyType::HOTBAR_NEXT)) {
+	if (wasKeyDown(KeyType::HOTBAR_NEXT))
 		dir = -1;
-	}
 
-	if (input->joystick.wasKeyDown(KeyType::SCROLL_UP) ||
-			wasKeyDown(KeyType::HOTBAR_PREV)) {
+	if (wasKeyDown(KeyType::HOTBAR_PREV))
 		dir = 1;
-	}
 
 	if (dir < 0)
 		*new_playeritem = *new_playeritem < max_item ? *new_playeritem + 1 : 0;
@@ -1289,7 +1287,7 @@ void Game::openInventory()
 		TextDest *txt_dst = new TextDestPlayerInventory(client);
 		auto *&formspec = m_game_ui->updateFormspec("");
 		GUIFormSpecMenu::create(formspec, client, &input->joystick, fs_src,
-			txt_dst, client->getFormspecPrepend());
+			txt_dst, client->getFormspecPrepend(), sound);
 
 		formspec->setFormSpec(fs_src->getForm(), inventoryloc);
 	}
@@ -1490,52 +1488,37 @@ void Game::toggleMinimap(bool shift_pressed)
 	if (!mapper || !m_game_ui->m_flags.show_hud || !g_settings->getBool("enable_minimap"))
 		return;
 
-	if (shift_pressed) {
+	if (shift_pressed)
 		mapper->toggleMinimapShape();
-		return;
-	}
+	else
+		mapper->nextMode();
 
+	// TODO: When legacy minimap is deprecated, keep only HUD minimap stuff here
+
+	// Not so satisying code to keep compatibility with old fixed mode system
+	// -->
 	u32 hud_flags = client->getEnv().getLocalPlayer()->hud_flags;
 
-	MinimapMode mode = MINIMAP_MODE_OFF;
-	if (hud_flags & HUD_FLAG_MINIMAP_VISIBLE) {
-		mode = mapper->getMinimapMode();
-		mode = (MinimapMode)((int)mode + 1);
-		// If radar is disabled and in, or switching to, radar mode
-		if (!(hud_flags & HUD_FLAG_MINIMAP_RADAR_VISIBLE) && mode > 3)
-			mode = MINIMAP_MODE_OFF;
-	}
+	if (!(hud_flags & HUD_FLAG_MINIMAP_VISIBLE)) {
+		m_game_ui->m_flags.show_minimap = false;
+	} else {
 
-	m_game_ui->m_flags.show_minimap = true;
-	switch (mode) {
-		case MINIMAP_MODE_SURFACEx1:
-			m_game_ui->showTranslatedStatusText("Minimap in surface mode, Zoom x1");
-			break;
-		case MINIMAP_MODE_SURFACEx2:
-			m_game_ui->showTranslatedStatusText("Minimap in surface mode, Zoom x2");
-			break;
-		case MINIMAP_MODE_SURFACEx4:
-			m_game_ui->showTranslatedStatusText("Minimap in surface mode, Zoom x4");
-			break;
-		case MINIMAP_MODE_RADARx1:
-			m_game_ui->showTranslatedStatusText("Minimap in radar mode, Zoom x1");
-			break;
-		case MINIMAP_MODE_RADARx2:
-			m_game_ui->showTranslatedStatusText("Minimap in radar mode, Zoom x2");
-			break;
-		case MINIMAP_MODE_RADARx4:
-			m_game_ui->showTranslatedStatusText("Minimap in radar mode, Zoom x4");
-			break;
-		default:
-			mode = MINIMAP_MODE_OFF;
-			m_game_ui->m_flags.show_minimap = false;
-			if (hud_flags & HUD_FLAG_MINIMAP_VISIBLE)
-				m_game_ui->showTranslatedStatusText("Minimap hidden");
-			else
-				m_game_ui->showTranslatedStatusText("Minimap currently disabled by game or mod");
-	}
+	// If radar is disabled, try to find a non radar mode or fall back to 0
+		if (!(hud_flags & HUD_FLAG_MINIMAP_RADAR_VISIBLE))
+			while (mapper->getModeIndex() &&
+					mapper->getModeDef().type == MINIMAP_TYPE_RADAR)
+				mapper->nextMode();
 
-	mapper->setMinimapMode(mode);
+		m_game_ui->m_flags.show_minimap = mapper->getModeDef().type !=
+				MINIMAP_TYPE_OFF;
+	}
+	// <--
+	// End of 'not so satifying code'
+	if ((hud_flags & HUD_FLAG_MINIMAP_VISIBLE) ||
+			(hud && hud->hasElementOfType(HUD_ELEM_MINIMAP)))
+		m_game_ui->showStatusText(utf8_to_wide(mapper->getModeDef().label));
+	else
+		m_game_ui->showTranslatedStatusText("Minimap currently disabled by game or mod");
 }
 
 void Game::toggleFog()
@@ -1743,8 +1726,8 @@ void Game::updatePlayerControl(const CameraOrientation &cam)
 		isKeyDown(KeyType::SPECIAL1),
 		isKeyDown(KeyType::SNEAK),
 		isKeyDown(KeyType::ZOOM),
-		input->getLeftState(),
-		input->getRightState(),
+		isKeyDown(KeyType::DIG),
+		isKeyDown(KeyType::PLACE),
 		cam.camera_pitch,
 		cam.camera_yaw,
 		input->joystick.getAxisWithoutDead(JA_SIDEWARD_MOVE),
@@ -1759,8 +1742,8 @@ void Game::updatePlayerControl(const CameraOrientation &cam)
 			( (u32)(isKeyDown(KeyType::JUMP)                          & 0x1) << 4) |
 			( (u32)(isKeyDown(KeyType::SPECIAL1)                      & 0x1) << 5) |
 			( (u32)(isKeyDown(KeyType::SNEAK)                         & 0x1) << 6) |
-			( (u32)(input->getLeftState()                             & 0x1) << 7) |
-			( (u32)(input->getRightState()                            & 0x1) << 8) |
+			( (u32)(isKeyDown(KeyType::DIG)                           & 0x1) << 7) |
+			( (u32)(isKeyDown(KeyType::PLACE)                         & 0x1) << 8) |
 			( (u32)(isKeyDown(KeyType::ZOOM)                          & 0x1) << 9)
 		);
 
@@ -1898,7 +1881,7 @@ void Game::handleClientEvent_ShowFormSpec(ClientEvent *event, CameraOrientation
 
 		auto *&formspec = m_game_ui->updateFormspec(*(event->show_formspec.formname));
 		GUIFormSpecMenu::create(formspec, client, &input->joystick,
-			fs_src, txt_dst, client->getFormspecPrepend());
+			fs_src, txt_dst, client->getFormspecPrepend(), sound);
 	}
 
 	delete event->show_formspec.formspec;
@@ -1911,7 +1894,7 @@ void Game::handleClientEvent_ShowLocalFormSpec(ClientEvent *event, CameraOrienta
 	LocalFormspecHandler *txt_dst =
 		new LocalFormspecHandler(*event->show_formspec.formname, client);
 	GUIFormSpecMenu::create(m_game_ui->getFormspecGUI(), client, &input->joystick,
-			fs_src, txt_dst, client->getFormspecPrepend());
+			fs_src, txt_dst, client->getFormspecPrepend(), sound);
 
 	delete event->show_formspec.formspec;
 	delete event->show_formspec.formname;
@@ -2246,12 +2229,13 @@ void Game::updateCamera(u32 busy_time, f32 dtime)
 
 void Game::updatePlayerCAOVisibility()
 {
+	// Make the player visible depending on camera mode.
 	LocalPlayer *player = client->getEnv().getLocalPlayer();
 	GenericCAO *playercao = player->getCAO();
 	if (!playercao)
 		return;
-	playercao->setVisible(camera->getCameraMode() > CAMERA_MODE_FIRST || g_settings->getBool("freecam"));
-	playercao->setChildrenVisible(camera->getCameraMode() > CAMERA_MODE_FIRST || g_settings->getBool("freecam"));
+	playercao->updateMeshCulling();
+	playercao->setChildrenVisible(camera->getCameraMode() > CAMERA_MODE_FIRST || g_settings->getBool("freecam"));	
 }
 
 void Game::updateSound(f32 dtime)
@@ -2348,7 +2332,7 @@ void Game::processPlayerInteraction(f32 dtime, bool show_hud, bool show_debug)
 
 	PointedThing pointed = updatePointedThing(shootline,
 			selected_def.liquids_pointable,
-			!runData.ldown_for_dig,
+			!runData.btn_down_for_dig,
 			camera_offset);
 
 	if (pointed != runData.pointed_old) {
@@ -2356,20 +2340,18 @@ void Game::processPlayerInteraction(f32 dtime, bool show_hud, bool show_debug)
 		hud->updateSelectionMesh(camera_offset);
 	}
 
-	if (runData.digging_blocked && !input->getLeftState()) {
-		// allow digging again if button is not pressed
+	// Allow digging again if button is not pressed
+	if (runData.digging_blocked && !isKeyDown(KeyType::DIG))
 		runData.digging_blocked = false;
-	}
 
 	/*
 		Stop digging when
-		- releasing left mouse button
+		- releasing dig button
 		- pointing away from node
 	*/
 	if (runData.digging) {
-		if (input->getLeftReleased()) {
-			infostream << "Left button released"
-					<< " (stopped digging)" << std::endl;
+		if (wasKeyReleased(KeyType::DIG)) {
+			infostream << "Dig button released (stopped digging)" << std::endl;
 			runData.digging = false;
 		} else if (pointed != runData.pointed_old) {
 			if (pointed.type == POINTEDTHING_NODE
@@ -2379,8 +2361,7 @@ void Game::processPlayerInteraction(f32 dtime, bool show_hud, bool show_debug)
 				// Still pointing to the same node, but a different face.
 				// Don't reset.
 			} else {
-				infostream << "Pointing away from node"
-						<< " (stopped digging)" << std::endl;
+				infostream << "Pointing away from node (stopped digging)" << std::endl;
 				runData.digging = false;
 				hud->updateSelectionMesh(camera_offset);
 			}
@@ -2391,55 +2372,57 @@ void Game::processPlayerInteraction(f32 dtime, bool show_hud, bool show_debug)
 			client->setCrack(-1, v3s16(0, 0, 0));
 			runData.dig_time = 0.0;
 		}
-	} else if (runData.dig_instantly && input->getLeftReleased()) {
-		// Remove e.g. torches faster when clicking instead of holding LMB
+	} else if (runData.dig_instantly && wasKeyReleased(KeyType::DIG)) {
+		// Remove e.g. torches faster when clicking instead of holding dig button
 		runData.nodig_delay_timer = 0;
 		runData.dig_instantly = false;
 	}
 
-	if (!runData.digging && runData.ldown_for_dig && !input->getLeftState()) {
-		runData.ldown_for_dig = false;
-	}
+	if (!runData.digging && runData.btn_down_for_dig && !isKeyDown(KeyType::DIG))
+		runData.btn_down_for_dig = false;
 
-	runData.left_punch = false;
+	runData.punching = false;
 
 	soundmaker->m_player_leftpunch_sound.name = "";
 
 	// Prepare for repeating, unless we're not supposed to
-	if ((input->getRightState() || g_settings->getBool("autoplace")) && !g_settings->getBool("safe_dig_and_place"))
-		runData.repeat_rightclick_timer += dtime;
+	if ((isKeyDown(KeyType::PLACE) || g_settings->getBool("autoplace")) && !g_settings->getBool("safe_dig_and_place"))
+		runData.repeat_place_timer += dtime;
 	else
-		runData.repeat_rightclick_timer = 0;
+		runData.repeat_place_timer = 0;
 
-	if (selected_def.usable && input->getLeftState()) {
-		if (input->getLeftClicked() && (!client->modsLoaded()
-				|| !client->getScript()->on_item_use(selected_item, pointed)))
+	if (selected_def.usable && isKeyDown(KeyType::DIG)) {
+		if (wasKeyPressed(KeyType::DIG) && (!client->modsLoaded() ||
+				!client->getScript()->on_item_use(selected_item, pointed)))
 			client->interact(INTERACT_USE, pointed);
 	} else if (pointed.type == POINTEDTHING_NODE) {
 		handlePointingAtNode(pointed, selected_item, hand_item, dtime);
 	} else if (pointed.type == POINTEDTHING_OBJECT) {
 		v3f player_position  = player->getPosition();
 		handlePointingAtObject(pointed, tool_item, player_position, show_debug);
-	} else if (input->getLeftState()) {
+	} else if (isKeyDown(KeyType::DIG)) {
 		// When button is held down in air, show continuous animation
-		runData.left_punch = true;
+		runData.punching = true;
 		// Run callback even though item is not usable
-		if (input->getLeftClicked() && client->modsLoaded())
+		if (wasKeyPressed(KeyType::DIG) && client->modsLoaded())
 			client->getScript()->on_item_use(selected_item, pointed);
-	} else if (input->getRightClicked()) {
+	} else if (wasKeyPressed(KeyType::PLACE)) {
 		handlePointingAtNothing(selected_item);
 	}
 
 	runData.pointed_old = pointed;
 
-	if (runData.left_punch || input->getLeftClicked())
-		camera->setDigging(0); // left click animation
+	if (runData.punching || wasKeyPressed(KeyType::DIG))
+		camera->setDigging(0); // dig animation
+
+	input->clearWasKeyPressed();
+	input->clearWasKeyReleased();
 
-	input->resetLeftClicked();
-	input->resetRightClicked();
+	input->joystick.clearWasKeyDown(KeyType::DIG);
+	input->joystick.clearWasKeyDown(KeyType::PLACE);
 
-	input->resetLeftReleased();
-	input->resetRightReleased();
+	input->joystick.clearWasKeyReleased(KeyType::DIG);
+	input->joystick.clearWasKeyReleased(KeyType::PLACE);
 }
 
 
@@ -2537,7 +2520,7 @@ PointedThing Game::updatePointedThing(
 
 void Game::handlePointingAtNothing(const ItemStack &playerItem)
 {
-	infostream << "Right Clicked in Air" << std::endl;
+	infostream << "Attempted to place item while pointing at nothing" << std::endl;
 	PointedThing fauxPointed;
 	fauxPointed.type = POINTEDTHING_NOTHING;
 	client->interact(INTERACT_ACTIVATE, fauxPointed);
@@ -2556,7 +2539,7 @@ void Game::handlePointingAtNode(const PointedThing &pointed,
 
 	ClientMap &map = client->getEnv().getClientMap();
 
-	if (((runData.nodig_delay_timer <= 0.0 || g_settings->getBool("fastdig")) && (input->getLeftState() || g_settings->getBool("autodig"))
+	if (((runData.nodig_delay_timer <= 0.0 || g_settings->getBool("fastdig")) && (isKeyDown(KeyType::DIG) || g_settings->getBool("autodig"))
 			&& !runData.digging_blocked
 			&& client->checkPrivilege("interact"))
 		) {
@@ -2578,14 +2561,14 @@ void Game::handlePointingAtNode(const PointedThing &pointed,
 		}
 	}
 
-	if ((input->getRightState() || g_settings->getBool("autoplace")) && 
-			(input->getRightClicked() ||
-			(runData.repeat_rightclick_timer >= (g_settings->getBool("fastplace") ? 0 : m_repeat_right_click_time))) &&
+	if (((wasKeyPressed(KeyType::PLACE) || g_settings->getBool("autoplace")) ||
+			(runData.repeat_place_timer >= (g_settings->getBool("fastplace") ? 0 : m_repeat_place_time))) &&
 			client->checkPrivilege("interact")) {
-		runData.repeat_rightclick_timer = 0;
-		infostream << "Ground right-clicked" << std::endl;
+		runData.repeat_place_timer = 0;
+		infostream << "Place button pressed while looking at ground" << std::endl;
 
-		camera->setDigging(1);  // right click animation (always shown for feedback)
+		// Placing animation (always shown for feedback)
+		camera->setDigging(1);
 
 		soundmaker->m_player_rightpunch_sound = SimpleSoundSpec();
 
@@ -2636,7 +2619,7 @@ bool Game::nodePlacement(const ItemDefinition &selected_def,
 
 		auto *&formspec = m_game_ui->updateFormspec("");
 		GUIFormSpecMenu::create(formspec, client, &input->joystick, fs_src,
-			txt_dst, client->getFormspecPrepend());
+			txt_dst, client->getFormspecPrepend(), sound);
 
 		formspec->setFormSpec(meta->getString("formspec"), inventoryloc);
 		return false;
@@ -2651,8 +2634,7 @@ bool Game::nodePlacement(const ItemDefinition &selected_def,
 	}
 
 	verbosestream << "Node placement prediction for "
-		<< selected_def.name << " is "
-		<< prediction << std::endl;
+		<< selected_def.name << " is " << prediction << std::endl;
 	v3s16 p = neighbourpos;
 
 	// Place inside node itself if buildable_to
@@ -2663,6 +2645,7 @@ bool Game::nodePlacement(const ItemDefinition &selected_def,
 		} else {
 			node = map.getNode(p, &is_valid_position);
 			if (is_valid_position && !nodedef->get(node).buildable_to) {
+				soundmaker->m_player_rightpunch_sound = selected_def.sound_place_failed;
 				// Report to server
 				client->interact(INTERACT_PLACE, pointed);
 				return false;
@@ -2735,6 +2718,7 @@ bool Game::nodePlacement(const ItemDefinition &selected_def,
 			pp = p + v3s16(0, -1, 0);
 
 		if (!nodedef->get(map.getNode(pp)).walkable) {
+			soundmaker->m_player_rightpunch_sound = selected_def.sound_place_failed;
 			// Report to server
 			client->interact(INTERACT_PLACE, pointed);
 			return false;
@@ -2811,7 +2795,7 @@ void Game::handlePointingAtObject(const PointedThing &pointed,
 
 	m_game_ui->setInfoText(infotext);
 
-	if (input->getLeftState() || g_settings->getBool("autohit")) {
+	if (isKeyDown(KeyType::DIG) || g_settings->getBool("autohit")) {
 		bool do_punch = false;
 		bool do_punch_damage = false;
 
@@ -2821,12 +2805,12 @@ void Game::handlePointingAtObject(const PointedThing &pointed,
 			runData.object_hit_delay_timer = object_hit_delay;
 		}
 
-		if (input->getLeftClicked())
+		if (wasKeyPressed(KeyType::DIG))
 			do_punch = true;
 
 		if (do_punch) {
-			infostream << "Left-clicked object" << std::endl;
-			runData.left_punch = true;
+			infostream << "Punched object" << std::endl;
+			runData.punching = true;
 		}
 
 		if (do_punch_damage) {
@@ -2842,8 +2826,8 @@ void Game::handlePointingAtObject(const PointedThing &pointed,
 				client->interact(INTERACT_START_DIGGING, pointed);
 			}
 		}
-	} else if (input->getRightClicked()) {
-		infostream << "Right-clicked object" << std::endl;
+	} else if (wasKeyDown(KeyType::PLACE)) {
+		infostream << "Pressed place button while pointing at object" << std::endl;
 		client->interact(INTERACT_PLACE, pointed);  // place
 	}
 }
@@ -2893,7 +2877,7 @@ void Game::handleDigging(const PointedThing &pointed, const v3s16 &nodepos,
 			return;
 		client->interact(INTERACT_START_DIGGING, pointed);
 		runData.digging = true;
-		runData.ldown_for_dig = true;
+		runData.btn_down_for_dig = true;
 	}
 
 	if (!runData.dig_instantly) {
@@ -2987,10 +2971,9 @@ void Game::handleDigging(const PointedThing &pointed, const v3s16 &nodepos,
 		client->setCrack(-1, nodepos);
 	}
 
-	camera->setDigging(0);  // left click animation
+	camera->setDigging(0);  // Dig animation
 }
 
-
 void Game::updateFrame(ProfilerGraph *graph, RunStats *stats, f32 dtime,
 		const CameraOrientation &cam)
 {
@@ -3242,7 +3225,7 @@ void Game::updateFrame(ProfilerGraph *graph, RunStats *stats, f32 dtime,
 	/*
 		Update minimap pos and rotation
 	*/
-	if (mapper && m_game_ui->m_flags.show_minimap && m_game_ui->m_flags.show_hud) {
+	if (mapper && m_game_ui->m_flags.show_hud) {
 		mapper->setPos(floatToInt(player->getPosition(), BS));
 		mapper->setAngle(player->getYaw());
 	}
@@ -3250,7 +3233,27 @@ void Game::updateFrame(ProfilerGraph *graph, RunStats *stats, f32 dtime,
 	/*
 		End scene
 	*/
-	
+	if (++m_reset_HW_buffer_counter > 500) {
+		/*
+		  Periodically remove all mesh HW buffers.
+
+		  Work around for a quirk in Irrlicht where a HW buffer is only
+		  released after 20000 iterations (triggered from endScene()).
+
+		  Without this, all loaded but unused meshes will retain their HW
+		  buffers for at least 5 minutes, at which point looking up the HW buffers
+		  becomes a bottleneck and the framerate drops (as much as 30%).
+
+		  Tests showed that numbers between 50 and 1000 are good, so picked 500.
+		  There are no other public Irrlicht APIs that allow interacting with the
+		  HW buffers without tracking the status of every individual mesh.
+
+		  The HW buffers for _visible_ meshes will be reinitialized in the next frame.
+		*/
+		infostream << "Game::updateFrame(): Removing all HW buffers." << std::endl;
+		driver->removeAllHardwareBuffers();
+		m_reset_HW_buffer_counter = 0;
+	}
 	driver->endScene();
 
 	stats->drawtime = tt_draw.stop(true);
@@ -3286,9 +3289,10 @@ inline void Game::limitFps(FpsControl *fps_timings, f32 *dtime)
 	else
 		fps_timings->busy_time = 0;
 
-	u32 frametime_min = 1000 / (g_menumgr.pausesGame()
-			? g_settings->getFloat("pause_fps_max")
-			: g_settings->getFloat("fps_max"));
+	u32 frametime_min = 1000 / (
+		device->isWindowFocused() && !g_menumgr.pausesGame()
+			? g_settings->getFloat("fps_max")
+			: g_settings->getFloat("fps_max_unfocused"));
 
 	if (fps_timings->busy_time < frametime_min) {
 		fps_timings->sleep_time = frametime_min - fps_timings->busy_time;
@@ -3354,7 +3358,7 @@ void Game::readSettings()
 	m_cache_enable_fog                   = g_settings->getBool("enable_fog");
 	m_cache_mouse_sensitivity            = g_settings->getFloat("mouse_sensitivity");
 	m_cache_joystick_frustum_sensitivity = g_settings->getFloat("joystick_frustum_sensitivity");
-	m_repeat_right_click_time            = g_settings->getFloat("repeat_rightclick_time");
+	m_repeat_place_time                  = g_settings->getFloat("repeat_place_time");
 
 	m_cache_enable_noclip                = g_settings->getBool("noclip");
 	m_cache_enable_free_move             = g_settings->getBool("free_move");
@@ -3419,7 +3423,7 @@ void Game::showDeathFormspec()
 
 	auto *&formspec = m_game_ui->getFormspecGUI();
 	GUIFormSpecMenu::create(formspec, client, &input->joystick,
-		fs_src, txt_dst, client->getFormspecPrepend());
+		fs_src, txt_dst, client->getFormspecPrepend(), sound);
 	formspec->setFocus("btn_respawn");
 }
 
@@ -3446,14 +3450,14 @@ void Game::showPauseMenu()
 		"- %s: move backwards\n"
 		"- %s: move left\n"
 		"- %s: move right\n"
-		"- %s: jump/climb\n"
-		"- %s: sneak/go down\n"
+		"- %s: jump/climb up\n"
+		"- %s: dig/punch\n"
+		"- %s: place/use\n"
+		"- %s: sneak/climb down\n"
 		"- %s: drop item\n"
 		"- %s: inventory\n"
 		"- %s: enderchest\n"
 		"- Mouse: turn/look\n"
-		"- Mouse left: dig/punch\n"
-		"- Mouse right: place/use\n"
 		"- Mouse wheel: select item\n"
 		"- %s: chat\n"
 		"- %s: Killaura\n"
@@ -3470,6 +3474,8 @@ void Game::showPauseMenu()
 			GET_KEY_NAME(keymap_left),
 			GET_KEY_NAME(keymap_right),
 			GET_KEY_NAME(keymap_jump),
+			GET_KEY_NAME(keymap_dig),
+			GET_KEY_NAME(keymap_place),
 			GET_KEY_NAME(keymap_sneak),
 			GET_KEY_NAME(keymap_drop),
 			GET_KEY_NAME(keymap_inventory),
@@ -3561,7 +3567,7 @@ void Game::showPauseMenu()
 
 	auto *&formspec = m_game_ui->getFormspecGUI();
 	GUIFormSpecMenu::create(formspec, client, &input->joystick,
-			fs_src, txt_dst, client->getFormspecPrepend());
+			fs_src, txt_dst, client->getFormspecPrepend(), sound);
 	formspec->setFocus("btn_continue");
 	formspec->doPause = true;
 }
diff --git a/src/client/game.h b/src/client/game.h
index 51accc679..26117ab86 100644
--- a/src/client/game.h
+++ b/src/client/game.h
@@ -295,7 +295,7 @@ public:
 		m_sound(sound),
 		m_ndef(ndef),
 		makes_footstep_sound(true),
-		m_player_step_timer(0),
+		m_player_step_timer(0.0f),
 		m_player_jump_timer(0.0f)
 	{
 	}
@@ -441,14 +441,13 @@ class GameGlobalShaderConstantSetter : public IShaderConstantSetter
 	CachedVertexShaderSetting<float> m_animation_timer_vertex;
 	CachedPixelShaderSetting<float> m_animation_timer_pixel;
 	CachedPixelShaderSetting<float, 3> m_day_light;
+	CachedPixelShaderSetting<float, 4> m_star_color;
 	CachedPixelShaderSetting<float, 3> m_eye_position_pixel;
 	CachedVertexShaderSetting<float, 3> m_eye_position_vertex;
 	CachedPixelShaderSetting<float, 3> m_minimap_yaw;
 	CachedPixelShaderSetting<float, 3> m_camera_offset_pixel;
 	CachedPixelShaderSetting<float, 3> m_camera_offset_vertex;
 	CachedPixelShaderSetting<SamplerLayer_t> m_base_texture;
-	CachedPixelShaderSetting<SamplerLayer_t> m_normal_texture;
-	CachedPixelShaderSetting<SamplerLayer_t> m_texture_flags;
 	Client *m_client;
 
 public:
@@ -475,14 +474,13 @@ public:
 		m_animation_timer_vertex("animationTimer"),
 		m_animation_timer_pixel("animationTimer"),
 		m_day_light("dayLight"),
+		m_star_color("starColor"),
 		m_eye_position_pixel("eyePosition"),
 		m_eye_position_vertex("eyePosition"),
 		m_minimap_yaw("yawVec"),
 		m_camera_offset_pixel("cameraOffset"),
 		m_camera_offset_vertex("cameraOffset"),
 		m_base_texture("baseTexture"),
-		m_normal_texture("normalTexture"),
-		m_texture_flags("textureFlags"),
 		m_client(client)
 	{
 		g_settings->registerChangedCallback("enable_fog", settingsCallback, this);
@@ -528,6 +526,10 @@ public:
 			sunlight.b };
 		m_day_light.set(dnc, services);
 
+		video::SColorf star_color = m_sky->getCurrentStarColor();
+		float clr[4] = {star_color.r, star_color.g, star_color.b, star_color.a};
+		m_star_color.set(clr, services);
+
 		u32 animation_timer = porting::getTimeMs() % 1000000;
 		float animation_timer_f = (float)animation_timer / 100000.f;
 		m_animation_timer_vertex.set(&animation_timer_f, services);
@@ -570,12 +572,8 @@ public:
 		m_camera_offset_pixel.set(camera_offset_array, services);
 		m_camera_offset_vertex.set(camera_offset_array, services);
 
-		SamplerLayer_t base_tex = 0,
-				normal_tex = 1,
-				flags_tex = 2;
+		SamplerLayer_t base_tex = 0;
 		m_base_texture.set(&base_tex, services);
-		m_normal_texture.set(&normal_tex, services);
-		m_texture_flags.set(&flags_tex, services);
 	}
 };
 
@@ -621,7 +619,6 @@ public:
 #endif
 
 /****************************************************************************
-
  ****************************************************************************/
 
 const float object_hit_delay = 0.2;
@@ -642,7 +639,8 @@ struct GameRunData {
 	u16 new_playeritem;
 	PointedThing pointed_old;
 	bool digging;
-	bool ldown_for_dig;
+	bool punching;
+	bool btn_down_for_dig;
 	bool dig_instantly;
 	bool digging_blocked;
 	bool left_punch;
@@ -650,7 +648,7 @@ struct GameRunData {
 	float nodig_delay_timer;
 	float dig_time;
 	float dig_time_complete;
-	float repeat_rightclick_timer;
+	float repeat_place_timer;
 	float object_hit_delay_timer;
 	float time_from_last_punch;
 	ClientActiveObject *selected_object;
@@ -802,6 +800,14 @@ public:
 	{
 		return input->wasKeyDown(k);
 	}
+	inline bool wasKeyPressed(GameKeyType k)
+	{
+		return input->wasKeyPressed(k);
+	}
+	inline bool wasKeyReleased(GameKeyType k)
+	{
+		return input->wasKeyReleased(k);
+	}
 
 #ifdef __ANDROID__
 	void handleAndroidChatInput();
@@ -891,7 +897,6 @@ public:
 	bool *reconnect_requested;
 	scene::ISceneNode *skybox;
 
-	bool random_input;
 	bool simple_singleplayer_mode;
 	/* End 'cache' */
 
@@ -916,7 +921,7 @@ public:
 	bool m_cache_enable_free_move;
 	f32  m_cache_mouse_sensitivity;
 	f32  m_cache_joystick_frustum_sensitivity;
-	f32  m_repeat_right_click_time;
+	f32  m_repeat_place_time;
 	f32  m_cache_cam_smoothing;
 	f32  m_cache_fog_start;
 
@@ -929,6 +934,7 @@ public:
 	CameraOrientation cam_view_target  = { 0 };
 	CameraOrientation cam_view  = { 0 };
 
+	int m_reset_HW_buffer_counter = 0;
 #ifdef __ANDROID__
 	bool m_cache_hold_aux1;
 	bool m_android_chat_open;
diff --git a/src/client/gameui.cpp b/src/client/gameui.cpp
index a9057052e..0c1da3915 100644
--- a/src/client/gameui.cpp
+++ b/src/client/gameui.cpp
@@ -64,17 +64,6 @@ void GameUI::init()
 	m_guitext2 = gui::StaticText::add(guienv, L"", core::rect<s32>(0, 0, 0, 0), false,
 		false, guiroot);
 
-	// At the middle of the screen
-	// Object infos are shown in this
-	m_guitext_info = gui::StaticText::add(guienv, L"",
-		core::rect<s32>(0, 0, 400, g_fontengine->getTextHeight() * 5 + 5)
-			+ v2s32(100, 200), false, true, guiroot);
-
-	// Status text (displays info when showing and hiding GUI stuff, etc.)
-	m_guitext_status = gui::StaticText::add(guienv, L"<Status>",
-		core::rect<s32>(0, 0, 0, 0), false, false, guiroot);
-	m_guitext_status->setVisible(false);
-
 	// Chat text
 	m_guitext_chat = gui::StaticText::add(guienv, L"", core::rect<s32>(0, 0, 0, 0),
 		//false, false); // Disable word wrap as of now
@@ -85,6 +74,20 @@ void GameUI::init()
 			chat_font_size, FM_Unspecified));
 	}
 
+	// At the middle of the screen
+	// Object infos are shown in this
+	u32 chat_font_height = m_guitext_chat->getActiveFont()->getDimension(L"Ay").Height;
+	m_guitext_info = gui::StaticText::add(guienv, L"",
+		core::rect<s32>(0, 0, 400, g_fontengine->getTextHeight() * 5 + 5) +
+			v2s32(100, chat_font_height *
+			(g_settings->getU16("recent_chat_messages") + 3)),
+			false, true, guiroot);
+
+	// Status text (displays info when showing and hiding GUI stuff, etc.)
+	m_guitext_status = gui::StaticText::add(guienv, L"<Status>",
+		core::rect<s32>(0, 0, 0, 0), false, false, guiroot);
+	m_guitext_status->setVisible(false);
+
 	// Profiler text (size is updated when text is updated)
 	m_guitext_profiler = gui::StaticText::add(guienv, L"<Profiler>",
 		core::rect<s32>(0, 0, 0, 0), false, false, guiroot);
@@ -132,8 +135,8 @@ void GameUI::update(const RunStats &stats, Client *client, MapDrawControl *draw_
 			<< std::setprecision(1)
 			<< " | view range: "
 			<< (draw_control->range_all ? "All" : itos(draw_control->wanted_range))
-			<< std::setprecision(3)
-			<< " | RTT: " << client->getRTT() << "s";
+			<< std::setprecision(2)
+			<< " | RTT: " << (client->getRTT() * 1000.0f) << "ms";
 		setStaticText(m_guitext, utf8_to_wide(os.str()).c_str());
 
 		m_guitext->setRelativePosition(core::rect<s32>(5, 5, screensize.X,
@@ -149,9 +152,9 @@ void GameUI::update(const RunStats &stats, Client *client, MapDrawControl *draw_
 			<< "pos: (" << (player_position.X / BS)
 			<< ", " << (player_position.Y / BS)
 			<< ", " << (player_position.Z / BS)
-			<< ") | yaw: " << (wrapDegrees_0_360(cam.camera_yaw)) << "\xC2\xB0 "
+			<< ") | yaw: " << (wrapDegrees_0_360(cam.camera_yaw)) << "° "
 			<< yawToDirectionString(cam.camera_yaw)
-			<< " | pitch: " << (-wrapDegrees_180(cam.camera_pitch)) << "\xC2\xB0"
+			<< " | pitch: " << (-wrapDegrees_180(cam.camera_pitch)) << "°"
 			<< " | seed: " << ((u64)client->getMapSeed());
 
 		if (pointed_old.type == POINTEDTHING_NODE) {
diff --git a/src/client/guiscalingfilter.cpp b/src/client/guiscalingfilter.cpp
index 4262331bd..406c096e6 100644
--- a/src/client/guiscalingfilter.cpp
+++ b/src/client/guiscalingfilter.cpp
@@ -172,11 +172,8 @@ void draw2DImageFilterScaled(video::IVideoDriver *driver, video::ITexture *txr,
 
 void draw2DImage9Slice(video::IVideoDriver *driver, video::ITexture *texture,
 		const core::rect<s32> &rect, const core::rect<s32> &middle,
-		const core::rect<s32> *cliprect)
+		const core::rect<s32> *cliprect, const video::SColor *const colors)
 {
-	const video::SColor color(255,255,255,255);
-	const video::SColor colors[] = {color,color,color,color};
-
 	auto originalSize = texture->getOriginalSize();
 	core::vector2di lowerRightOffset = core::vector2di(originalSize.Width, originalSize.Height) - middle.LowerRightCorner;
 
diff --git a/src/client/guiscalingfilter.h b/src/client/guiscalingfilter.h
index b703d91f0..379a4bdb0 100644
--- a/src/client/guiscalingfilter.h
+++ b/src/client/guiscalingfilter.h
@@ -54,4 +54,5 @@ void draw2DImageFilterScaled(video::IVideoDriver *driver, video::ITexture *txr,
  */
 void draw2DImage9Slice(video::IVideoDriver *driver, video::ITexture *texture,
 		const core::rect<s32> &rect, const core::rect<s32> &middle,
-		const core::rect<s32> *cliprect = nullptr);
+		const core::rect<s32> *cliprect = nullptr,
+		const video::SColor *const colors = nullptr);
diff --git a/src/client/hud.cpp b/src/client/hud.cpp
index 2b347c1e0..f6497fe25 100644
--- a/src/client/hud.cpp
+++ b/src/client/hud.cpp
@@ -36,6 +36,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "mesh.h"
 #include "wieldmesh.h"
 #include "client/renderingengine.h"
+#include "client/minimap.h"
 
 #ifdef HAVE_TOUCHSCREENGUI
 #include "gui/touchscreengui.h"
@@ -114,6 +115,28 @@ Hud::Hud(gui::IGUIEnvironment *guienv, Client *client, LocalPlayer *player,
 	} else {
 		m_selection_material.MaterialType = video::EMT_SOLID;
 	}
+
+	// Prepare mesh for compass drawing
+	m_rotation_mesh_buffer.Vertices.set_used(4);
+	m_rotation_mesh_buffer.Indices.set_used(6);
+
+	video::SColor white(255, 255, 255, 255);
+	v3f normal(0.f, 0.f, 1.f);
+
+	m_rotation_mesh_buffer.Vertices[0] = video::S3DVertex(v3f(-1.f, -1.f, 0.f), normal, white, v2f(0.f, 1.f));
+	m_rotation_mesh_buffer.Vertices[1] = video::S3DVertex(v3f(-1.f,  1.f, 0.f), normal, white, v2f(0.f, 0.f));
+	m_rotation_mesh_buffer.Vertices[2] = video::S3DVertex(v3f( 1.f,  1.f, 0.f), normal, white, v2f(1.f, 0.f));
+	m_rotation_mesh_buffer.Vertices[3] = video::S3DVertex(v3f( 1.f, -1.f, 0.f), normal, white, v2f(1.f, 1.f));
+
+	m_rotation_mesh_buffer.Indices[0] = 0;
+	m_rotation_mesh_buffer.Indices[1] = 1;
+	m_rotation_mesh_buffer.Indices[2] = 2;
+	m_rotation_mesh_buffer.Indices[3] = 2;
+	m_rotation_mesh_buffer.Indices[4] = 3;
+	m_rotation_mesh_buffer.Indices[5] = 0;
+
+	m_rotation_mesh_buffer.getMaterial().Lighting = false;
+	m_rotation_mesh_buffer.getMaterial().MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
 }
 
 Hud::~Hud()
@@ -275,6 +298,18 @@ void Hud::drawItems(v2s32 upperleftpos, v2s32 screen_offset, s32 itemcount,
 	}
 }
 
+bool Hud::hasElementOfType(HudElementType type)
+{
+	for (size_t i = 0; i != player->maxHudId(); i++) {
+		HudElement *e = player->getHud(i);
+		if (!e)
+			continue;
+		if (e->type == type)
+			return true;
+	}
+	return false;
+}
+
 // Calculates screen position of waypoint. Returns true if waypoint is visible (in front of the player), else false.
 bool Hud::calculateScreenPos(const v3s16 &camera_offset, HudElement *e, v2s32 *pos)
 {
@@ -423,6 +458,69 @@ void Hud::drawLuaElements(const v3s16 &camera_offset)
 					core::rect<s32>(core::position2d<s32>(0,0), imgsize),
 					NULL, colors, true);
 				break; }
+			case HUD_ELEM_COMPASS: {
+				video::ITexture *texture = tsrc->getTexture(e->text);
+				if (!texture)
+					continue;
+
+				// Positionning :
+				v2s32 dstsize(e->size.X, e->size.Y);
+				if (e->size.X < 0)
+					dstsize.X = m_screensize.X * (e->size.X * -0.01);
+				if (e->size.Y < 0)
+					dstsize.Y = m_screensize.Y * (e->size.Y * -0.01);
+
+				if (dstsize.X <= 0 || dstsize.Y <= 0)
+					return; // Avoid zero divides
+
+				// Angle according to camera view
+				v3f fore(0.f, 0.f, 1.f);
+				scene::ICameraSceneNode *cam = RenderingEngine::get_scene_manager()->getActiveCamera();
+				cam->getAbsoluteTransformation().rotateVect(fore);
+				int angle = - fore.getHorizontalAngle().Y;
+
+				// Limit angle and ajust with given offset
+				angle = (angle + (int)e->number) % 360;
+
+				core::rect<s32> dstrect(0, 0, dstsize.X, dstsize.Y);
+				dstrect += pos + v2s32(
+								(e->align.X - 1.0) * dstsize.X / 2,
+								(e->align.Y - 1.0) * dstsize.Y / 2) +
+						v2s32(e->offset.X * m_hud_scaling, e->offset.Y * m_hud_scaling);
+
+				switch (e->dir) {
+				case HUD_COMPASS_ROTATE:
+					drawCompassRotate(e, texture, dstrect, angle);
+					break;
+				case HUD_COMPASS_ROTATE_REVERSE:
+					drawCompassRotate(e, texture, dstrect, -angle);
+					break;
+				case HUD_COMPASS_TRANSLATE:
+					drawCompassTranslate(e, texture, dstrect, angle);
+					break;
+				case HUD_COMPASS_TRANSLATE_REVERSE:
+					drawCompassTranslate(e, texture, dstrect, -angle);
+					break;
+				default:
+					break;
+				}
+				break; }
+			case HUD_ELEM_MINIMAP: {
+				if (e->size.X <= 0 || e->size.Y <= 0)
+					break;
+				if (!client->getMinimap())
+					break;
+				// Draw a minimap of size "size"
+				v2s32 dstsize(e->size.X * m_scale_factor,
+				              e->size.Y * m_scale_factor);
+				// (no percent size as minimap would likely be anamorphosed)
+				v2s32 offset((e->align.X - 1.0) * dstsize.X / 2,
+				             (e->align.Y - 1.0) * dstsize.Y / 2);
+				core::rect<s32> rect(0, 0, dstsize.X, dstsize.Y);
+				rect += pos + offset + v2s32(e->offset.X * m_scale_factor,
+				                             e->offset.Y * m_scale_factor);
+				client->getMinimap()->drawMinimap(rect);
+				break; }
 			default:
 				infostream << "Hud::drawLuaElements: ignoring drawform " << e->type <<
 					" of hud element ID " << i << " due to unrecognized type" << std::endl;
@@ -430,6 +528,76 @@ void Hud::drawLuaElements(const v3s16 &camera_offset)
 	}
 }
 
+void Hud::drawCompassTranslate(HudElement *e, video::ITexture *texture,
+		const core::rect<s32> &rect, int angle)
+{
+	const video::SColor color(255, 255, 255, 255);
+	const video::SColor colors[] = {color, color, color, color};
+
+	// Compute source image scaling
+	core::dimension2di imgsize(texture->getOriginalSize());
+	core::rect<s32> srcrect(0, 0, imgsize.Width, imgsize.Height);
+
+	v2s32 dstsize(rect.getHeight() * e->scale.X * imgsize.Width / imgsize.Height,
+			rect.getHeight() * e->scale.Y);
+
+	// Avoid infinite loop
+	if (dstsize.X <= 0 || dstsize.Y <= 0)
+		return;
+
+	core::rect<s32> tgtrect(0, 0, dstsize.X, dstsize.Y);
+	tgtrect +=  v2s32(
+				(rect.getWidth() - dstsize.X) / 2,
+				(rect.getHeight() - dstsize.Y) / 2) +
+			rect.UpperLeftCorner;
+
+	int offset = angle * dstsize.X / 360;
+
+	tgtrect += v2s32(offset, 0);
+
+	// Repeat image as much as needed
+	while (tgtrect.UpperLeftCorner.X > rect.UpperLeftCorner.X)
+		tgtrect -= v2s32(dstsize.X, 0);
+
+	draw2DImageFilterScaled(driver, texture, tgtrect, srcrect, &rect, colors, true);
+	tgtrect += v2s32(dstsize.X, 0);
+
+	while (tgtrect.UpperLeftCorner.X < rect.LowerRightCorner.X) {
+		draw2DImageFilterScaled(driver, texture, tgtrect, srcrect, &rect, colors, true);
+		tgtrect += v2s32(dstsize.X, 0);
+	}
+}
+
+void Hud::drawCompassRotate(HudElement *e, video::ITexture *texture,
+		const core::rect<s32> &rect, int angle)
+{
+	core::dimension2di imgsize(texture->getOriginalSize());
+
+	core::rect<s32> oldViewPort = driver->getViewPort();
+	core::matrix4 oldProjMat = driver->getTransform(video::ETS_PROJECTION);
+	core::matrix4 oldViewMat = driver->getTransform(video::ETS_VIEW);
+
+	core::matrix4 Matrix;
+	Matrix.makeIdentity();
+	Matrix.setRotationDegrees(v3f(0.f, 0.f, angle));
+
+	driver->setViewPort(rect);
+	driver->setTransform(video::ETS_PROJECTION, core::matrix4());
+	driver->setTransform(video::ETS_VIEW, core::matrix4());
+	driver->setTransform(video::ETS_WORLD, Matrix);
+
+	video::SMaterial &material = m_rotation_mesh_buffer.getMaterial();
+	material.TextureLayer[0].Texture = texture;
+	driver->setMaterial(material);
+	driver->drawMeshBuffer(&m_rotation_mesh_buffer);
+
+	driver->setTransform(video::ETS_WORLD, core::matrix4());
+	driver->setTransform(video::ETS_VIEW, oldViewMat);
+	driver->setTransform(video::ETS_PROJECTION, oldProjMat);
+
+	// restore the view area
+	driver->setViewPort(oldViewPort);
+}
 
 void Hud::drawStatbar(v2s32 pos, u16 corner, u16 drawdir,
 		const std::string &texture, const std::string &bgtexture,
diff --git a/src/client/hud.h b/src/client/hud.h
index ba34d479d..d46545d71 100644
--- a/src/client/hud.h
+++ b/src/client/hud.h
@@ -81,6 +81,8 @@ public:
 		m_selected_face_normal = face_normal;
 	}
 
+	bool hasElementOfType(HudElementType type);
+
 	void drawLuaElements(const v3s16 &camera_offset);
 
 private:
@@ -95,6 +97,12 @@ private:
 
 	void drawItem(const ItemStack &item, const core::rect<s32> &rect, bool selected);
 
+	void drawCompassTranslate(HudElement *e, video::ITexture *texture,
+			const core::rect<s32> &rect, int way);
+
+	void drawCompassRotate(HudElement *e, video::ITexture *texture,
+			const core::rect<s32> &rect, int way);
+
 	float m_hud_scaling; // cached minetest setting
 	float m_scale_factor;
 	v3s16 m_camera_offset;
@@ -115,6 +123,8 @@ private:
 
 	video::SMaterial m_selection_material;
 
+	scene::SMeshBuffer m_rotation_mesh_buffer;
+
 	enum
 	{
 		HIGHLIGHT_BOX,
diff --git a/src/client/inputhandler.cpp b/src/client/inputhandler.cpp
index 418e41931..37ab838c0 100644
--- a/src/client/inputhandler.cpp
+++ b/src/client/inputhandler.cpp
@@ -37,6 +37,8 @@ void KeyCache::populate()
 	key[KeyType::JUMP] = getKeySetting("keymap_jump");
 	key[KeyType::SPECIAL1] = getKeySetting("keymap_special1");
 	key[KeyType::SNEAK] = getKeySetting("keymap_sneak");
+	key[KeyType::DIG] = getKeySetting("keymap_dig");
+	key[KeyType::PLACE] = getKeySetting("keymap_place");
 
 	key[KeyType::AUTOFORWARD] = getKeySetting("keymap_autoforward");
 
@@ -122,57 +124,81 @@ bool MyEventReceiver::OnEvent(const SEvent &event)
 	if (event.EventType == irr::EET_KEY_INPUT_EVENT) {
 		const KeyPress &keyCode = event.KeyInput;
 		if (keysListenedFor[keyCode]) {
+				// If the key is being held down then the OS may
+				// send a continuous stream of keydown events.
+				// In this case, we don't want to let this
+				// stream reach the application as it will cause
+				// certain actions to repeat constantly.
 			if (event.KeyInput.PressedDown) {
+				if (!IsKeyDown(keyCode)) {
+					keyWasDown.set(keyCode);
+					keyWasPressed.set(keyCode);
+				}
 				keyIsDown.set(keyCode);
-				keyWasDown.set(keyCode);
 			} else {
+				if (IsKeyDown(keyCode))
+					keyWasReleased.set(keyCode);
+
 				keyIsDown.unset(keyCode);
 			}
+
 			return true;
 		}
-	}
 
 #ifdef HAVE_TOUCHSCREENGUI
-	// case of touchscreengui we have to handle different events
-	if (m_touchscreengui && event.EventType == irr::EET_TOUCH_INPUT_EVENT) {
+	} else if (m_touchscreengui && event.EventType == irr::EET_TOUCH_INPUT_EVENT) {
+		// In case of touchscreengui, we have to handle different events
 		m_touchscreengui->translateEvent(event);
 		return true;
-	}
 #endif
 
-	if (event.EventType == irr::EET_JOYSTICK_INPUT_EVENT) {
+	} else if (event.EventType == irr::EET_JOYSTICK_INPUT_EVENT) {
 		/* TODO add a check like:
 		if (event.JoystickEvent != joystick_we_listen_for)
 			return false;
 		*/
 		return joystick->handleEvent(event.JoystickEvent);
-	}
-	// handle mouse events
-	if (event.EventType == irr::EET_MOUSE_INPUT_EVENT) {
-		if (isMenuActive()) {
-			left_active = false;
-			middle_active = false;
-			right_active = false;
-		} else {
-			left_active = event.MouseInput.isLeftPressed();
-			middle_active = event.MouseInput.isMiddlePressed();
-			right_active = event.MouseInput.isRightPressed();
-
-			if (event.MouseInput.Event == EMIE_LMOUSE_PRESSED_DOWN) {
-				leftclicked = true;
-			}
-			if (event.MouseInput.Event == EMIE_RMOUSE_PRESSED_DOWN) {
-				rightclicked = true;
-			}
-			if (event.MouseInput.Event == EMIE_LMOUSE_LEFT_UP) {
-				leftreleased = true;
-			}
-			if (event.MouseInput.Event == EMIE_RMOUSE_LEFT_UP) {
-				rightreleased = true;
-			}
-			if (event.MouseInput.Event == EMIE_MOUSE_WHEEL) {
-				mouse_wheel += event.MouseInput.Wheel;
-			}
+	} else if (event.EventType == irr::EET_MOUSE_INPUT_EVENT) {
+		// Handle mouse events
+		KeyPress key;
+		switch (event.MouseInput.Event) {
+		case EMIE_LMOUSE_PRESSED_DOWN:
+			key = "KEY_LBUTTON";
+			keyIsDown.set(key);
+			keyWasDown.set(key);
+			keyWasPressed.set(key);
+			break;
+		case EMIE_MMOUSE_PRESSED_DOWN:
+			key = "KEY_MBUTTON";
+			keyIsDown.set(key);
+			keyWasDown.set(key);
+			keyWasPressed.set(key);
+			break;
+		case EMIE_RMOUSE_PRESSED_DOWN:
+			key = "KEY_RBUTTON";
+			keyIsDown.set(key);
+			keyWasDown.set(key);
+			keyWasPressed.set(key);
+			break;
+		case EMIE_LMOUSE_LEFT_UP:
+			key = "KEY_LBUTTON";
+			keyIsDown.unset(key);
+			keyWasReleased.set(key);
+			break;
+		case EMIE_MMOUSE_LEFT_UP:
+			key = "KEY_MBUTTON";
+			keyIsDown.unset(key);
+			keyWasReleased.set(key);
+			break;
+		case EMIE_RMOUSE_LEFT_UP:
+			key = "KEY_RBUTTON";
+			keyIsDown.unset(key);
+			keyWasReleased.set(key);
+			break;
+		case EMIE_MOUSE_WHEEL:
+			mouse_wheel += event.MouseInput.Wheel;
+			break;
+		default: break;
 		}
 	} else if (event.EventType == irr::EET_LOG_TEXT_EVENT) {
 		static const LogLevel irr_loglev_conv[] = {
@@ -199,38 +225,28 @@ s32 RandomInputHandler::Rand(s32 min, s32 max)
 	return (myrand() % (max - min + 1)) + min;
 }
 
+struct RandomInputHandlerSimData {
+	std::string key;
+	float counter;
+	int time_max;
+};
+
 void RandomInputHandler::step(float dtime)
 {
-	{
-		static float counter1 = 0;
-		counter1 -= dtime;
-		if (counter1 < 0.0) {
-			counter1 = 0.1 * Rand(1, 40);
-			keydown.toggle(getKeySetting("keymap_jump"));
-		}
-	}
-	{
-		static float counter1 = 0;
-		counter1 -= dtime;
-		if (counter1 < 0.0) {
-			counter1 = 0.1 * Rand(1, 40);
-			keydown.toggle(getKeySetting("keymap_special1"));
-		}
-	}
-	{
-		static float counter1 = 0;
-		counter1 -= dtime;
-		if (counter1 < 0.0) {
-			counter1 = 0.1 * Rand(1, 40);
-			keydown.toggle(getKeySetting("keymap_forward"));
-		}
-	}
-	{
-		static float counter1 = 0;
-		counter1 -= dtime;
-		if (counter1 < 0.0) {
-			counter1 = 0.1 * Rand(1, 40);
-			keydown.toggle(getKeySetting("keymap_left"));
+	static RandomInputHandlerSimData rnd_data[] = {
+		{ "keymap_jump", 0.0f, 40 },
+		{ "keymap_special1", 0.0f, 40 },
+		{ "keymap_forward", 0.0f, 40 },
+		{ "keymap_left", 0.0f, 40 },
+		{ "keymap_dig", 0.0f, 30 },
+		{ "keymap_place", 0.0f, 15 }
+	};
+
+	for (auto &i : rnd_data) {
+		i.counter -= dtime;
+		if (i.counter < 0.0) {
+			i.counter = 0.1 * Rand(1, i.time_max);
+			keydown.toggle(getKeySetting(i.key.c_str()));
 		}
 	}
 	{
@@ -241,29 +257,5 @@ void RandomInputHandler::step(float dtime)
 			mousespeed = v2s32(Rand(-20, 20), Rand(-15, 20));
 		}
 	}
-	{
-		static float counter1 = 0;
-		counter1 -= dtime;
-		if (counter1 < 0.0) {
-			counter1 = 0.1 * Rand(1, 30);
-			leftdown = !leftdown;
-			if (leftdown)
-				leftclicked = true;
-			if (!leftdown)
-				leftreleased = true;
-		}
-	}
-	{
-		static float counter1 = 0;
-		counter1 -= dtime;
-		if (counter1 < 0.0) {
-			counter1 = 0.1 * Rand(1, 15);
-			rightdown = !rightdown;
-			if (rightdown)
-				rightclicked = true;
-			if (!rightdown)
-				rightreleased = true;
-		}
-	}
 	mousepos += mousespeed;
 }
diff --git a/src/client/inputhandler.h b/src/client/inputhandler.h
index e006affb2..b3a7d4ba3 100644
--- a/src/client/inputhandler.h
+++ b/src/client/inputhandler.h
@@ -144,6 +144,14 @@ public:
 		return b;
 	}
 
+	// Checks whether a key was just pressed. State will be cleared
+	// in the subsequent iteration of Game::processPlayerInteraction
+	bool WasKeyPressed(const KeyPress &keycode) const { return keyWasPressed[keycode]; }
+
+	// Checks whether a key was just released. State will be cleared
+	// in the subsequent iteration of Game::processPlayerInteraction
+	bool WasKeyReleased(const KeyPress &keycode) const { return keyWasReleased[keycode]; }
+
 	void listenForKey(const KeyPress &keyCode) { keysListenedFor.set(keyCode); }
 	void dontListenForKeys() { keysListenedFor.clear(); }
 
@@ -158,17 +166,20 @@ public:
 	{
 		keyIsDown.clear();
 		keyWasDown.clear();
+		keyWasPressed.clear();
+		keyWasReleased.clear();
 
-		leftclicked = false;
-		rightclicked = false;
-		leftreleased = false;
-		rightreleased = false;
+		mouse_wheel = 0;
+	}
 
-		left_active = false;
-		middle_active = false;
-		right_active = false;
+	void clearWasKeyPressed()
+	{
+		keyWasPressed.clear();
+	}
 
-		mouse_wheel = 0;
+	void clearWasKeyReleased()
+	{
+		keyWasReleased.clear();
 	}
 
 	MyEventReceiver()
@@ -178,15 +189,6 @@ public:
 #endif
 	}
 
-	bool leftclicked = false;
-	bool rightclicked = false;
-	bool leftreleased = false;
-	bool rightreleased = false;
-
-	bool left_active = false;
-	bool middle_active = false;
-	bool right_active = false;
-
 	s32 mouse_wheel = 0;
 
 	JoystickController *joystick = nullptr;
@@ -197,8 +199,16 @@ public:
 
 	// The current state of keys
 	KeyList keyIsDown;
-	// Whether a key has been pressed or not
+
+	// Whether a key was down
 	KeyList keyWasDown;
+
+	// Whether a key has just been pressed
+	KeyList keyWasPressed;
+
+	// Whether a key has just been released
+	KeyList keyWasReleased;
+
 	// List of keys we listen for
 	// TODO perhaps the type of this is not really
 	// performant as KeyList is designed for few but
@@ -227,27 +237,19 @@ public:
 	virtual void setKeypress(const KeyPress &keyCode) = 0;
 	virtual void unsetKeypress(const KeyPress &keyCode) = 0;
 	virtual bool wasKeyDown(GameKeyType k) = 0;
+	virtual bool wasKeyPressed(GameKeyType k) = 0;
+	virtual bool wasKeyReleased(GameKeyType k) = 0;
 	virtual bool cancelPressed() = 0;
 
+	virtual void clearWasKeyPressed() {}
+	virtual void clearWasKeyReleased() {}
+
 	virtual void listenForKey(const KeyPress &keyCode) {}
 	virtual void dontListenForKeys() {}
 
 	virtual v2s32 getMousePos() = 0;
 	virtual void setMousePos(s32 x, s32 y) = 0;
 
-	virtual bool getLeftState() = 0;
-	virtual bool getRightState() = 0;
-
-	virtual bool getLeftClicked() = 0;
-	virtual bool getRightClicked() = 0;
-	virtual void resetLeftClicked() = 0;
-	virtual void resetRightClicked() = 0;
-
-	virtual bool getLeftReleased() = 0;
-	virtual bool getRightReleased() = 0;
-	virtual void resetLeftReleased() = 0;
-	virtual void resetRightReleased() = 0;
-
 	virtual s32 getMouseWheel() = 0;
 
 	virtual void step(float dtime) {}
@@ -285,10 +287,26 @@ public:
 	{
 		return m_receiver->WasKeyDown(keycache.key[k]) || joystick.wasKeyDown(k);
 	}
+	virtual bool wasKeyPressed(GameKeyType k)
+	{
+		return m_receiver->WasKeyPressed(keycache.key[k]) || joystick.wasKeyReleased(k);
+	}
+	virtual bool wasKeyReleased(GameKeyType k)
+	{
+		return m_receiver->WasKeyReleased(keycache.key[k]) || joystick.wasKeyReleased(k);
+	}
 	virtual bool cancelPressed()
 	{
 		return wasKeyDown(KeyType::ESC) || m_receiver->WasKeyDown(CancelKey);
 	}
+	virtual void clearWasKeyPressed()
+	{
+		m_receiver->clearWasKeyPressed();
+	}
+	virtual void clearWasKeyReleased()
+	{
+		m_receiver->clearWasKeyReleased();
+	}
 	virtual void listenForKey(const KeyPress &keyCode)
 	{
 		m_receiver->listenForKey(keyCode);
@@ -316,59 +334,6 @@ public:
 		}
 	}
 
-	virtual bool getLeftState()
-	{
-		return m_receiver->left_active || joystick.isKeyDown(KeyType::MOUSE_L);
-	}
-	virtual bool getRightState()
-	{
-		return m_receiver->right_active || joystick.isKeyDown(KeyType::MOUSE_R);
-	}
-
-	virtual bool getLeftClicked()
-	{
-		return m_receiver->leftclicked ||
-		       joystick.getWasKeyDown(KeyType::MOUSE_L);
-	}
-	virtual bool getRightClicked()
-	{
-		return m_receiver->rightclicked ||
-		       joystick.getWasKeyDown(KeyType::MOUSE_R);
-	}
-
-	virtual void resetLeftClicked()
-	{
-		m_receiver->leftclicked = false;
-		joystick.clearWasKeyDown(KeyType::MOUSE_L);
-	}
-	virtual void resetRightClicked()
-	{
-		m_receiver->rightclicked = false;
-		joystick.clearWasKeyDown(KeyType::MOUSE_R);
-	}
-
-	virtual bool getLeftReleased()
-	{
-		return m_receiver->leftreleased ||
-		       joystick.wasKeyReleased(KeyType::MOUSE_L);
-	}
-	virtual bool getRightReleased()
-	{
-		return m_receiver->rightreleased ||
-		       joystick.wasKeyReleased(KeyType::MOUSE_R);
-	}
-
-	virtual void resetLeftReleased()
-	{
-		m_receiver->leftreleased = false;
-		joystick.clearWasKeyReleased(KeyType::MOUSE_L);
-	}
-	virtual void resetRightReleased()
-	{
-		m_receiver->rightreleased = false;
-		joystick.clearWasKeyReleased(KeyType::MOUSE_R);
-	}
-
 	virtual s32 getMouseWheel() { return m_receiver->getMouseWheel(); }
 
 	void clear()
@@ -402,23 +367,12 @@ public:
 		keydown.unset(keyCode);
 	}
 	virtual bool wasKeyDown(GameKeyType k) { return false; }
+	virtual bool wasKeyPressed(GameKeyType k) { return false; }
+	virtual bool wasKeyReleased(GameKeyType k) { return false; }
 	virtual bool cancelPressed() { return false; }
 	virtual v2s32 getMousePos() { return mousepos; }
 	virtual void setMousePos(s32 x, s32 y) { mousepos = v2s32(x, y); }
 
-	virtual bool getLeftState() { return leftdown; }
-	virtual bool getRightState() { return rightdown; }
-
-	virtual bool getLeftClicked() { return leftclicked; }
-	virtual bool getRightClicked() { return rightclicked; }
-	virtual void resetLeftClicked() { leftclicked = false; }
-	virtual void resetRightClicked() { rightclicked = false; }
-
-	virtual bool getLeftReleased() { return leftreleased; }
-	virtual bool getRightReleased() { return rightreleased; }
-	virtual void resetLeftReleased() { leftreleased = false; }
-	virtual void resetRightReleased() { rightreleased = false; }
-
 	virtual s32 getMouseWheel() { return 0; }
 
 	virtual void step(float dtime);
@@ -429,10 +383,4 @@ private:
 	KeyList keydown;
 	v2s32 mousepos;
 	v2s32 mousespeed;
-	bool leftdown = false;
-	bool rightdown = false;
-	bool leftclicked = false;
-	bool rightclicked = false;
-	bool leftreleased = false;
-	bool rightreleased = false;
 };
diff --git a/src/client/joystick_controller.cpp b/src/client/joystick_controller.cpp
index c29e8b639..742115046 100644
--- a/src/client/joystick_controller.cpp
+++ b/src/client/joystick_controller.cpp
@@ -74,8 +74,8 @@ JoystickLayout create_default_layout()
 
 	// Accessible without four modifier button pressed
 	// regardless whether start is pressed or not
-	JLO_B_PB(KeyType::MOUSE_L,    fb | 1 << 4, 1 << 4);
-	JLO_B_PB(KeyType::MOUSE_R,    fb | 1 << 5, 1 << 5);
+	JLO_B_PB(KeyType::DIG,        fb | 1 << 4, 1 << 4);
+	JLO_B_PB(KeyType::PLACE,      fb | 1 << 5, 1 << 5);
 
 	// Accessible without any modifier pressed
 	JLO_B_PB(KeyType::JUMP,       bm | 1 << 0, 1 << 0);
@@ -83,9 +83,9 @@ JoystickLayout create_default_layout()
 
 	// Accessible with start button not pressed, but four pressed
 	// TODO find usage for button 0
-	JLO_B_PB(KeyType::DROP,       bm | 1 << 1, fb | 1 << 1);
-	JLO_B_PB(KeyType::SCROLL_UP,  bm | 1 << 4, fb | 1 << 4);
-	JLO_B_PB(KeyType::SCROLL_DOWN,bm | 1 << 5, fb | 1 << 5);
+	JLO_B_PB(KeyType::DROP,        bm | 1 << 1, fb | 1 << 1);
+	JLO_B_PB(KeyType::HOTBAR_PREV, bm | 1 << 4, fb | 1 << 4);
+	JLO_B_PB(KeyType::HOTBAR_NEXT, bm | 1 << 5, fb | 1 << 5);
 
 	// Accessible with start button and four pressed
 	// TODO find usage for buttons 0, 1 and 4, 5
@@ -99,8 +99,8 @@ JoystickLayout create_default_layout()
 	JLO_A_PB(KeyType::RIGHT,    0, -1, 1024);
 
 	// Scroll buttons
-	JLO_A_PB(KeyType::SCROLL_UP,   2, -1, 1024);
-	JLO_A_PB(KeyType::SCROLL_DOWN, 5, -1, 1024);
+	JLO_A_PB(KeyType::HOTBAR_PREV, 2, -1, 1024);
+	JLO_A_PB(KeyType::HOTBAR_NEXT, 5, -1, 1024);
 
 	return jlo;
 }
@@ -134,10 +134,10 @@ JoystickLayout create_xbox_layout()
 	JLO_B_PB(KeyType::SNEAK,       1 << 12, 1 << 12); // right
 
 	// Triggers
-	JLO_B_PB(KeyType::MOUSE_L,     1 << 6,  1 << 6); // lt
-	JLO_B_PB(KeyType::MOUSE_R,     1 << 7,  1 << 7); // rt
-	JLO_B_PB(KeyType::SCROLL_UP,   1 << 4,  1 << 4); // lb
-	JLO_B_PB(KeyType::SCROLL_DOWN, 1 << 5,  1 << 5); // rb
+	JLO_B_PB(KeyType::DIG,         1 << 6,  1 << 6); // lt
+	JLO_B_PB(KeyType::PLACE,       1 << 7,  1 << 7); // rt
+	JLO_B_PB(KeyType::HOTBAR_PREV, 1 << 4,  1 << 4); // lb
+	JLO_B_PB(KeyType::HOTBAR_NEXT, 1 << 5,  1 << 5); // rb
 
 	// D-PAD
 	JLO_B_PB(KeyType::ZOOM,        1 << 15, 1 << 15); // up
diff --git a/src/client/keys.h b/src/client/keys.h
index 43a032a7b..828ea3ec4 100644
--- a/src/client/keys.h
+++ b/src/client/keys.h
@@ -35,6 +35,8 @@ public:
 		SPECIAL1,
 		SNEAK,
 		AUTOFORWARD,
+		DIG,
+		PLACE,
 
 		ESC,
 
@@ -119,12 +121,6 @@ public:
 		SLOT_31,
 		SLOT_32,
 
-		// joystick specific keys
-		MOUSE_L,
-		MOUSE_R,
-		SCROLL_UP,
-		SCROLL_DOWN,
-
 		// Fake keycode for array size and internal checks
 		INTERNAL_ENUM_COUNT
 
diff --git a/src/client/localplayer.cpp b/src/client/localplayer.cpp
index 3b52b18e1..7d532c602 100644
--- a/src/client/localplayer.cpp
+++ b/src/client/localplayer.cpp
@@ -19,7 +19,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 
 #include "localplayer.h"
 #include <cmath>
-#include "event.h"
+#include "mtevent.h"
 #include "collision.h"
 #include "nodedef.h"
 #include "settings.h"
diff --git a/src/client/mapblock_mesh.cpp b/src/client/mapblock_mesh.cpp
index f65864599..7b342fc33 100644
--- a/src/client/mapblock_mesh.cpp
+++ b/src/client/mapblock_mesh.cpp
@@ -35,11 +35,9 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 	MeshMakeData
 */
 
-MeshMakeData::MeshMakeData(Client *client, bool use_shaders,
-		bool use_tangent_vertices):
+MeshMakeData::MeshMakeData(Client *client, bool use_shaders):
 	m_client(client),
-	m_use_shaders(use_shaders),
-	m_use_tangent_vertices(use_tangent_vertices)
+	m_use_shaders(use_shaders)
 {}
 
 void MeshMakeData::fillBlockDataBegin(const v3s16 &blockpos)
@@ -81,33 +79,6 @@ void MeshMakeData::fill(MapBlock *block)
 	}
 }
 
-void MeshMakeData::fillSingleNode(MapNode *node)
-{
-	m_blockpos = v3s16(0,0,0);
-
-	v3s16 blockpos_nodes = v3s16(0,0,0);
-	VoxelArea area(blockpos_nodes-v3s16(1,1,1)*MAP_BLOCKSIZE,
-			blockpos_nodes+v3s16(1,1,1)*MAP_BLOCKSIZE*2-v3s16(1,1,1));
-	s32 volume = area.getVolume();
-	s32 our_node_index = area.index(1,1,1);
-
-	// Allocate this block + neighbors
-	m_vmanip.clear();
-	m_vmanip.addArea(area);
-
-	// Fill in data
-	MapNode *data = new MapNode[volume];
-	for(s32 i = 0; i < volume; i++)
-	{
-		if (i == our_node_index)
-			data[i] = *node;
-		else
-			data[i] = MapNode(CONTENT_AIR, LIGHT_MAX, 0);
-	}
-	m_vmanip.copyFrom(data, area, area.MinEdge, area.MinEdge, area.getExtent());
-	delete[] data;
-}
-
 void MeshMakeData::setCrack(int crack_level, v3s16 crack_pos)
 {
 	if (crack_level >= 0)
@@ -422,7 +393,16 @@ static void getNodeVertexDirs(const v3s16 &dir, v3s16 *vertex_dirs)
 	u8 idx = (dir.X + 2 * dir.Y + 3 * dir.Z) & 7;
 	idx = (idx - 1) * 4;
 
+#if defined(__GNUC__) && !defined(__clang__)
+#pragma GCC diagnostic push
+#if __GNUC__ > 7
+#pragma GCC diagnostic ignored "-Wclass-memaccess"
+#endif
+#endif
 	memcpy(vertex_dirs, &vertex_dirs_table[idx], 4 * sizeof(v3s16));
+#if defined(__GNUC__) && !defined(__clang__)
+#pragma GCC diagnostic pop
+#endif
 }
 
 static void getNodeTextureCoords(v3f base, const v3f &scale, const v3s16 &dir, float *u, float *v)
@@ -1076,10 +1056,9 @@ MapBlockMesh::MapBlockMesh(MeshMakeData *data, v3s16 camera_offset):
 	for (auto &m : m_mesh)
 		m = new scene::SMesh();
 	m_enable_shaders = data->m_use_shaders;
-	m_use_tangent_vertices = data->m_use_tangent_vertices;
 	m_enable_vbo = g_settings->getBool("enable_vbo");
 
-	if (g_settings->getBool("enable_minimap")) {
+	if (data->m_client->getMinimap()) {
 		m_minimap_mapblock = new MinimapMapblock;
 		m_minimap_mapblock->getMinimapNodes(
 			&data->m_vmanip, data->m_blockpos * MAP_BLOCKSIZE);
@@ -1256,28 +1235,12 @@ MapBlockMesh::MapBlockMesh(MeshMakeData *data, v3s16 camera_offset):
 
 			scene::SMesh *mesh = (scene::SMesh *)m_mesh[layer];
 
-			// Create meshbuffer, add to mesh
-			if (m_use_tangent_vertices) {
-				scene::SMeshBufferTangents *buf =
-						new scene::SMeshBufferTangents();
-				buf->Material = material;
-				buf->Vertices.reallocate(p.vertices.size());
-				buf->Indices.reallocate(p.indices.size());
-				for (const video::S3DVertex &v: p.vertices)
-					buf->Vertices.push_back(video::S3DVertexTangents(v.Pos, v.Color, v.TCoords));
-				for (u16 i: p.indices)
-					buf->Indices.push_back(i);
-				buf->recalculateBoundingBox();
-				mesh->addMeshBuffer(buf);
-				buf->drop();
-			} else {
-				scene::SMeshBuffer *buf = new scene::SMeshBuffer();
-				buf->Material = material;
-				buf->append(&p.vertices[0], p.vertices.size(),
-					&p.indices[0], p.indices.size());
-				mesh->addMeshBuffer(buf);
-				buf->drop();
-			}
+			scene::SMeshBuffer *buf = new scene::SMeshBuffer();
+			buf->Material = material;
+			buf->append(&p.vertices[0], p.vertices.size(),
+				&p.indices[0], p.indices.size());
+			mesh->addMeshBuffer(buf);
+			buf->drop();
 		}
 
 		/*
@@ -1287,12 +1250,6 @@ MapBlockMesh::MapBlockMesh(MeshMakeData *data, v3s16 camera_offset):
 		translateMesh(m_mesh[layer],
 			intToFloat(data->m_blockpos * MAP_BLOCKSIZE - camera_offset, BS));
 
-		if (m_use_tangent_vertices) {
-			scene::IMeshManipulator* meshmanip =
-				RenderingEngine::get_scene_manager()->getMeshManipulator();
-			meshmanip->recalculateTangents(m_mesh[layer], true, false, false);
-		}
-
 		if (m_mesh[layer]) {
 #if 0
 			// Usually 1-700 faces and 1-7 materials
diff --git a/src/client/mapblock_mesh.h b/src/client/mapblock_mesh.h
index 95fda83e5..ec1faea32 100644
--- a/src/client/mapblock_mesh.h
+++ b/src/client/mapblock_mesh.h
@@ -45,10 +45,8 @@ struct MeshMakeData
 
 	Client *m_client;
 	bool m_use_shaders;
-	bool m_use_tangent_vertices;
 
-	MeshMakeData(Client *client, bool use_shaders,
-			bool use_tangent_vertices = false);
+	MeshMakeData(Client *client, bool use_shaders);
 
 	/*
 		Copy block data manually (to allow optimizations by the caller)
@@ -63,11 +61,6 @@ struct MeshMakeData
 	void fill(MapBlock *block);
 
 	/*
-		Set up with only a single node at (1,1,1)
-	*/
-	void fillSingleNode(MapNode *node);
-
-	/*
 		Set the (node) position of a crack
 	*/
 	void setCrack(int crack_level, v3s16 crack_pos);
@@ -143,7 +136,6 @@ private:
 	IShaderSource *m_shdrsrc;
 
 	bool m_enable_shaders;
-	bool m_use_tangent_vertices;
 	bool m_enable_vbo;
 
 	// Must animate() be called before rendering?
diff --git a/src/client/mesh.cpp b/src/client/mesh.cpp
index e1ec22068..2400a374c 100644
--- a/src/client/mesh.cpp
+++ b/src/client/mesh.cpp
@@ -203,6 +203,15 @@ void setMeshColor(scene::IMesh *mesh, const video::SColor &color)
 		setMeshBufferColor(mesh->getMeshBuffer(j), color);
 }
 
+void setMeshBufferTextureCoords(scene::IMeshBuffer *buf, const v2f *uv, u32 count)
+{
+	const u32 stride = getVertexPitchFromType(buf->getVertexType());
+	assert(buf->getVertexCount() >= count);
+	u8 *vertices = (u8 *) buf->getVertices();
+	for (u32 i = 0; i < count; i++)
+		((video::S3DVertex*) (vertices + i * stride))->TCoords = uv[i];
+}
+
 template <typename F>
 static void applyToMesh(scene::IMesh *mesh, const F &fn)
 {
diff --git a/src/client/mesh.h b/src/client/mesh.h
index 103c61e45..dbc091a06 100644
--- a/src/client/mesh.h
+++ b/src/client/mesh.h
@@ -58,6 +58,13 @@ void setMeshBufferColor(scene::IMeshBuffer *buf, const video::SColor &color);
 */
 void setMeshColor(scene::IMesh *mesh, const video::SColor &color);
 
+
+/*
+	Sets texture coords for vertices in the mesh buffer.
+	`uv[]` must have `count` elements
+*/
+void setMeshBufferTextureCoords(scene::IMeshBuffer *buf, const v2f *uv, u32 count);
+
 /*
 	Set a constant color for an animated mesh
 */
diff --git a/src/client/mesh_generator_thread.cpp b/src/client/mesh_generator_thread.cpp
index 53b980eeb..c8d1cba26 100644
--- a/src/client/mesh_generator_thread.cpp
+++ b/src/client/mesh_generator_thread.cpp
@@ -52,9 +52,6 @@ MeshUpdateQueue::MeshUpdateQueue(Client *client):
 	m_client(client)
 {
 	m_cache_enable_shaders = g_settings->getBool("enable_shaders");
-	m_cache_use_tangent_vertices = m_cache_enable_shaders && (
-		g_settings->getBool("enable_bumpmapping") ||
-		g_settings->getBool("enable_parallax_occlusion"));
 	m_cache_smooth_lighting = g_settings->getBool("smooth_lighting");
 	m_meshgen_block_cache_size = g_settings->getS32("meshgen_block_cache_size");
 }
@@ -207,8 +204,7 @@ CachedMapBlockData* MeshUpdateQueue::getCachedBlock(const v3s16 &p)
 
 void MeshUpdateQueue::fillDataFromMapBlockCache(QueuedMeshUpdate *q)
 {
-	MeshMakeData *data = new MeshMakeData(m_client, m_cache_enable_shaders,
-			m_cache_use_tangent_vertices);
+	MeshMakeData *data = new MeshMakeData(m_client, m_cache_enable_shaders);
 	q->data = data;
 
 	data->fillBlockDataBegin(q->p);
diff --git a/src/client/mesh_generator_thread.h b/src/client/mesh_generator_thread.h
index 2bb74589e..8e13dec3e 100644
--- a/src/client/mesh_generator_thread.h
+++ b/src/client/mesh_generator_thread.h
@@ -88,7 +88,6 @@ private:
 
 	// TODO: Add callback to update these when g_settings changes
 	bool m_cache_enable_shaders;
-	bool m_cache_use_tangent_vertices;
 	bool m_cache_smooth_lighting;
 	int m_meshgen_block_cache_size;
 
diff --git a/src/client/minimap.cpp b/src/client/minimap.cpp
index 8ea1a0283..60b095712 100644
--- a/src/client/minimap.cpp
+++ b/src/client/minimap.cpp
@@ -25,7 +25,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "shader.h"
 #include "mapblock.h"
 #include "client/renderingengine.h"
-
+#include "gettext.h"
 
 ////
 //// MinimapUpdateThread
@@ -108,8 +108,11 @@ void MinimapUpdateThread::doUpdate()
 		}
 	}
 
-	if (data->map_invalidated && data->mode != MINIMAP_MODE_OFF) {
-		getMap(data->pos, data->map_size, data->scan_height);
+
+	if (data->map_invalidated && (
+				data->mode.type == MINIMAP_TYPE_RADAR ||
+				data->mode.type == MINIMAP_TYPE_SURFACE)) {
+		getMap(data->pos, data->mode.map_size, data->mode.scan_height);
 		data->map_invalidated = false;
 	}
 }
@@ -181,19 +184,26 @@ Minimap::Minimap(Client *client)
 	this->m_ndef    = client->getNodeDefManager();
 
 	m_angle = 0.f;
+	m_current_mode_index = 0;
 
 	// Initialize static settings
 	m_enable_shaders = g_settings->getBool("enable_shaders");
 	m_surface_mode_scan_height =
 		g_settings->getBool("minimap_double_scan_height") ? 256 : 128;
 
+	// Initialize minimap modes
+	addMode(MINIMAP_TYPE_OFF);
+	addMode(MINIMAP_TYPE_SURFACE, 256);
+	addMode(MINIMAP_TYPE_SURFACE, 128);
+	addMode(MINIMAP_TYPE_SURFACE, 64);
+	addMode(MINIMAP_TYPE_RADAR,   512);
+	addMode(MINIMAP_TYPE_RADAR,   256);
+	addMode(MINIMAP_TYPE_RADAR,   128);
+
 	// Initialize minimap data
 	data = new MinimapData;
-	data->mode              = MINIMAP_MODE_OFF;
-	data->is_radar          = false;
-	data->map_invalidated   = true;
-	data->texture           = NULL;
-	data->heightmap_texture = NULL;
+	data->map_invalidated = true;
+
 	data->minimap_shape_round = g_settings->getBool("minimap_shape_round");
 
 	// Get round minimap textures
@@ -215,6 +225,8 @@ Minimap::Minimap(Client *client)
 	// Create object marker texture
 	data->object_marker_red = m_tsrc->getTexture("object_marker_red.png");
 
+	setModeIndex(0);
+
 	// Create mesh buffer for minimap
 	m_meshbuffer = getMinimapMeshBuffer();
 
@@ -240,6 +252,10 @@ Minimap::~Minimap()
 	driver->removeTexture(data->minimap_overlay_square);
 	driver->removeTexture(data->object_marker_red);
 
+	for (MinimapMarker *m : m_markers)
+		delete m;
+	m_markers.clear();
+
 	delete data;
 	delete m_minimap_update_thread;
 }
@@ -280,29 +296,101 @@ MinimapShape Minimap::getMinimapShape()
 	return MINIMAP_SHAPE_SQUARE;
 }
 
-void Minimap::setMinimapMode(MinimapMode mode)
+void Minimap::setModeIndex(size_t index)
 {
-	static const MinimapModeDef modedefs[MINIMAP_MODE_COUNT] = {
-		{false, 0, 0},
-		{false, m_surface_mode_scan_height, 256},
-		{false, m_surface_mode_scan_height, 128},
-		{false, m_surface_mode_scan_height, 64},
-		{true, 32, 128},
-		{true, 32, 64},
-		{true, 32, 32}
-	};
-
-	if (mode >= MINIMAP_MODE_COUNT)
-		return;
-
 	MutexAutoLock lock(m_mutex);
 
-	data->is_radar    = modedefs[mode].is_radar;
-	data->scan_height = modedefs[mode].scan_height;
-	data->map_size    = modedefs[mode].map_size;
-	data->mode        = mode;
+	if (index < m_modes.size()) {
+		data->mode = m_modes[index];
+		m_current_mode_index = index;
+	} else {
+		data->mode = MinimapModeDef{MINIMAP_TYPE_OFF, N_("Minimap hidden"), 0, 0, ""};
+		m_current_mode_index = 0;
+	}
 
-	m_minimap_update_thread->deferUpdate();
+	data->map_invalidated = true;
+
+	if (m_minimap_update_thread)
+		m_minimap_update_thread->deferUpdate();
+}
+
+void Minimap::addMode(MinimapModeDef mode)
+{
+	// Check validity
+	if (mode.type == MINIMAP_TYPE_TEXTURE) {
+		if (mode.texture.empty())
+			return;
+		if (mode.scale < 1)
+			mode.scale = 1;
+	}
+
+	int zoom = -1;
+
+	// Build a default standard label
+	if (mode.label == "") {
+		switch (mode.type) {
+			case MINIMAP_TYPE_OFF:
+				mode.label = N_("Minimap hidden");
+				break;
+			case MINIMAP_TYPE_SURFACE:
+				mode.label = N_("Minimap in surface mode, Zoom x%d");
+				if (mode.map_size > 0)
+					zoom = 256 / mode.map_size;
+				break;
+			case MINIMAP_TYPE_RADAR:
+				mode.label = N_("Minimap in radar mode, Zoom x%d");
+				if (mode.map_size > 0)
+					zoom = 512 / mode.map_size;
+				break;
+			case MINIMAP_TYPE_TEXTURE:
+				mode.label = N_("Minimap in texture mode");
+				break;
+			default:
+				break;
+		}
+	}
+
+	if (zoom >= 0) {
+		char label_buf[1024];
+		porting::mt_snprintf(label_buf, sizeof(label_buf),
+			mode.label.c_str(), zoom);
+		mode.label = label_buf;
+	}
+
+	m_modes.push_back(mode);
+}
+
+void Minimap::addMode(MinimapType type, u16 size, std::string label,
+		std::string texture, u16 scale)
+{
+	MinimapModeDef mode;
+	mode.type = type;
+	mode.label = label;
+	mode.map_size = size;
+	mode.texture = texture;
+	mode.scale = scale;
+	switch (type) {
+		case MINIMAP_TYPE_SURFACE:
+			mode.scan_height = m_surface_mode_scan_height;
+			break;
+		case MINIMAP_TYPE_RADAR:
+			mode.scan_height = 32;
+			break;
+		default:
+			mode.scan_height = 0;
+	}
+	addMode(mode);
+}
+
+void Minimap::nextMode()
+{
+	if (m_modes.empty())
+		return;
+	m_current_mode_index++;
+	if (m_current_mode_index >= m_modes.size())
+		m_current_mode_index = 0;
+
+	setModeIndex(m_current_mode_index);
 }
 
 void Minimap::setPos(v3s16 pos)
@@ -331,16 +419,16 @@ void Minimap::setAngle(f32 angle)
 void Minimap::blitMinimapPixelsToImageRadar(video::IImage *map_image)
 {
 	video::SColor c(240, 0, 0, 0);
-	for (s16 x = 0; x < data->map_size; x++)
-	for (s16 z = 0; z < data->map_size; z++) {
-		MinimapPixel *mmpixel = &data->minimap_scan[x + z * data->map_size];
+	for (s16 x = 0; x < data->mode.map_size; x++)
+	for (s16 z = 0; z < data->mode.map_size; z++) {
+		MinimapPixel *mmpixel = &data->minimap_scan[x + z * data->mode.map_size];
 
 		if (mmpixel->air_count > 0)
 			c.setGreen(core::clamp(core::round32(32 + mmpixel->air_count * 8), 0, 255));
 		else
 			c.setGreen(0);
 
-		map_image->setPixel(x, data->map_size - z - 1, c);
+		map_image->setPixel(x, data->mode.map_size - z - 1, c);
 	}
 }
 
@@ -349,9 +437,9 @@ void Minimap::blitMinimapPixelsToImageSurface(
 {
 	// This variable creation/destruction has a 1% cost on rendering minimap
 	video::SColor tilecolor;
-	for (s16 x = 0; x < data->map_size; x++)
-	for (s16 z = 0; z < data->map_size; z++) {
-		MinimapPixel *mmpixel = &data->minimap_scan[x + z * data->map_size];
+	for (s16 x = 0; x < data->mode.map_size; x++)
+	for (s16 z = 0; z < data->mode.map_size; z++) {
+		MinimapPixel *mmpixel = &data->minimap_scan[x + z * data->mode.map_size];
 
 		const ContentFeatures &f = m_ndef->get(mmpixel->n);
 		const TileDef *tile = &f.tiledef[0];
@@ -367,10 +455,10 @@ void Minimap::blitMinimapPixelsToImageSurface(
 		tilecolor.setBlue(tilecolor.getBlue() * f.minimap_color.getBlue() / 255);
 		tilecolor.setAlpha(240);
 
-		map_image->setPixel(x, data->map_size - z - 1, tilecolor);
+		map_image->setPixel(x, data->mode.map_size - z - 1, tilecolor);
 
 		u32 h = mmpixel->height;
-		heightmap_image->setPixel(x,data->map_size - z - 1,
+		heightmap_image->setPixel(x,data->mode.map_size - z - 1,
 			video::SColor(255, h, h, h));
 	}
 }
@@ -378,21 +466,46 @@ void Minimap::blitMinimapPixelsToImageSurface(
 video::ITexture *Minimap::getMinimapTexture()
 {
 	// update minimap textures when new scan is ready
-	if (data->map_invalidated)
+	if (data->map_invalidated && data->mode.type != MINIMAP_TYPE_TEXTURE)
 		return data->texture;
 
 	// create minimap and heightmap images in memory
-	core::dimension2d<u32> dim(data->map_size, data->map_size);
+	core::dimension2d<u32> dim(data->mode.map_size, data->mode.map_size);
 	video::IImage *map_image       = driver->createImage(video::ECF_A8R8G8B8, dim);
 	video::IImage *heightmap_image = driver->createImage(video::ECF_A8R8G8B8, dim);
 	video::IImage *minimap_image   = driver->createImage(video::ECF_A8R8G8B8,
 		core::dimension2d<u32>(MINIMAP_MAX_SX, MINIMAP_MAX_SY));
 
 	// Blit MinimapPixels to images
-	if (data->is_radar)
-		blitMinimapPixelsToImageRadar(map_image);
-	else
+	switch(data->mode.type) {
+	case MINIMAP_TYPE_OFF:
+		break;
+	case MINIMAP_TYPE_SURFACE:
 		blitMinimapPixelsToImageSurface(map_image, heightmap_image);
+		break;
+	case MINIMAP_TYPE_RADAR:
+		blitMinimapPixelsToImageRadar(map_image);
+		break;
+	case MINIMAP_TYPE_TEXTURE:
+		// Want to use texture source, to : 1 find texture, 2 cache it
+		video::ITexture* texture = m_tsrc->getTexture(data->mode.texture);
+		video::IImage* image = driver->createImageFromData(
+			 texture->getColorFormat(), texture->getSize(), texture->lock(), true, false);
+		texture->unlock();
+
+		auto dim = image->getDimension();
+
+		map_image->fill(video::SColor(255, 0, 0, 0));
+
+		image->copyTo(map_image,
+			irr::core::vector2d<int> {
+				((data->mode.map_size - (static_cast<int>(dim.Width))) >> 1)
+					- data->pos.X / data->mode.scale,
+				((data->mode.map_size - (static_cast<int>(dim.Height))) >> 1)
+					+ data->pos.Z / data->mode.scale
+			});
+		image->drop();
+	}
 
 	map_image->copyToScaling(minimap_image);
 	map_image->drop();
@@ -461,21 +574,34 @@ scene::SMeshBuffer *Minimap::getMinimapMeshBuffer()
 
 void Minimap::drawMinimap()
 {
+	// Non hud managed minimap drawing (legacy minimap)
+	v2u32 screensize = RenderingEngine::get_instance()->getWindowSize();
+	const u32 size = 0.25 * screensize.Y;
+
+	drawMinimap(core::rect<s32>(
+		screensize.X - size - 10, 10,
+		screensize.X - 10, size + 10));
+}
+
+void Minimap::drawMinimap(core::rect<s32> rect) {
+
 	video::ITexture *minimap_texture = getMinimapTexture();
 	if (!minimap_texture)
 		return;
 
+	if (data->mode.type == MINIMAP_TYPE_OFF)
+		return;
+
 	updateActiveMarkers();
-	v2u32 screensize = RenderingEngine::get_instance()->getWindowSize();
-	const u32 size = 0.25 * screensize.Y;
 
 	core::rect<s32> oldViewPort = driver->getViewPort();
 	core::matrix4 oldProjMat = driver->getTransform(video::ETS_PROJECTION);
 	core::matrix4 oldViewMat = driver->getTransform(video::ETS_VIEW);
 
-	driver->setViewPort(core::rect<s32>(
-		screensize.X - size * 2 - 10, 10,
-		screensize.X - size - 10, size + 10));
+//	driver->setViewPort(core::rect<s32>(
+//		screensize.X - size * 2 - 10, 10,
+//		screensize.X - size - 10, size + 10));
+	driver->setViewPort(rect);
 	driver->setTransform(video::ETS_PROJECTION, core::matrix4());
 	driver->setTransform(video::ETS_VIEW, core::matrix4());
 
@@ -488,7 +614,7 @@ void Minimap::drawMinimap()
 	material.TextureLayer[0].Texture = minimap_texture;
 	material.TextureLayer[1].Texture = data->heightmap_texture;
 
-	if (m_enable_shaders && !data->is_radar) {
+	if (m_enable_shaders && data->mode.type == MINIMAP_TYPE_SURFACE) {
 		u16 sid = m_shdrsrc->getShader("minimap_shader", 1, 1);
 		material.MaterialType = m_shdrsrc->getShaderInfo(sid).material;
 	} else {
@@ -529,14 +655,15 @@ void Minimap::drawMinimap()
 	driver->setViewPort(oldViewPort);
 
 	// Draw player markers
-	v2s32 s_pos(screensize.X - size * 2 - 10, 10);
+//	v2s32 s_pos(screensize.X - size * 2 - 10, 10);
+	v2s32 s_pos(rect.UpperLeftCorner.X, rect.UpperLeftCorner.Y);
 	core::dimension2di imgsize(data->object_marker_red->getOriginalSize());
 	core::rect<s32> img_rect(0, 0, imgsize.Width, imgsize.Height);
 	static const video::SColor col(255, 255, 255, 255);
 	static const video::SColor c[4] = {col, col, col, col};
 	f32 sin_angle = std::sin(m_angle * core::DEGTORAD);
 	f32 cos_angle = std::cos(m_angle * core::DEGTORAD);
-	s32 marker_size2 =  0.025 * (float)size;
+	s32 marker_size2 =  0.025 * (float)rect.getWidth();;
 	for (std::list<v2f>::const_iterator
 			i = m_active_markers.begin();
 			i != m_active_markers.end(); ++i) {
@@ -547,8 +674,8 @@ void Minimap::drawMinimap()
 			posf.X = t1;
 			posf.Y = t2;
 		}
-		posf.X = (posf.X + 0.5) * (float)size;
-		posf.Y = (posf.Y + 0.5) * (float)size;
+		posf.X = (posf.X + 0.5) * (float)rect.getWidth();
+		posf.Y = (posf.Y + 0.5) * (float)rect.getHeight();
 		core::rect<s32> dest_rect(
 			s_pos.X + posf.X - marker_size2,
 			s_pos.Y + posf.Y - marker_size2,
@@ -559,28 +686,41 @@ void Minimap::drawMinimap()
 	}
 }
 
+MinimapMarker* Minimap::addMarker(scene::ISceneNode *parent_node)
+{
+	MinimapMarker *m = new MinimapMarker(parent_node);
+	m_markers.push_back(m);
+	return m;
+}
+
+void Minimap::removeMarker(MinimapMarker **m)
+{
+	m_markers.remove(*m);
+	delete *m;
+	*m = nullptr;
+}
+
 void Minimap::updateActiveMarkers()
 {
 	video::IImage *minimap_mask = data->minimap_shape_round ?
 		data->minimap_mask_round : data->minimap_mask_square;
 
-	const std::list<Nametag *> &nametags = client->getCamera()->getNametags();
-
 	m_active_markers.clear();
-
-	for (Nametag *nametag : nametags) {
-		v3s16 pos = floatToInt(nametag->parent_node->getAbsolutePosition() +
-			intToFloat(client->getCamera()->getOffset(), BS), BS);
-		pos -= data->pos - v3s16(data->map_size / 2,
-				data->scan_height / 2,
-				data->map_size / 2);
-		if (pos.X < 0 || pos.X > data->map_size ||
-				pos.Y < 0 || pos.Y > data->scan_height ||
-				pos.Z < 0 || pos.Z > data->map_size) {
+	v3f cam_offset = intToFloat(client->getCamera()->getOffset(), BS);
+	v3s16 pos_offset = data->pos - v3s16(data->mode.map_size / 2,
+			data->mode.scan_height / 2,
+			data->mode.map_size / 2);
+
+	for (MinimapMarker *marker : m_markers) {
+		v3s16 pos = floatToInt(marker->parent_node->getAbsolutePosition() +
+			cam_offset, BS) - pos_offset;
+		if (pos.X < 0 || pos.X > data->mode.map_size ||
+				pos.Y < 0 || pos.Y > data->mode.scan_height ||
+				pos.Z < 0 || pos.Z > data->mode.map_size) {
 			continue;
 		}
-		pos.X = ((float)pos.X / data->map_size) * MINIMAP_MAX_SX;
-		pos.Z = ((float)pos.Z / data->map_size) * MINIMAP_MAX_SY;
+		pos.X = ((float)pos.X / data->mode.map_size) * MINIMAP_MAX_SX;
+		pos.Z = ((float)pos.Z / data->mode.map_size) * MINIMAP_MAX_SY;
 		const video::SColor &mask_col = minimap_mask->getPixel(pos.X, pos.Z);
 		if (!mask_col.getAlpha()) {
 			continue;
diff --git a/src/client/minimap.h b/src/client/minimap.h
index 258d5330d..4a2c462f8 100644
--- a/src/client/minimap.h
+++ b/src/client/minimap.h
@@ -19,6 +19,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 
 #pragma once
 
+#include "../hud.h"
 #include "irrlichttypes_extrabloated.h"
 #include "util/thread.h"
 #include "voxel.h"
@@ -33,28 +34,27 @@ class IShaderSource;
 #define MINIMAP_MAX_SX 512
 #define MINIMAP_MAX_SY 512
 
-enum MinimapMode {
-	MINIMAP_MODE_OFF,
-	MINIMAP_MODE_SURFACEx1,
-	MINIMAP_MODE_SURFACEx2,
-	MINIMAP_MODE_SURFACEx4,
-	MINIMAP_MODE_RADARx1,
-	MINIMAP_MODE_RADARx2,
-	MINIMAP_MODE_RADARx4,
-	MINIMAP_MODE_COUNT,
-};
-
 enum MinimapShape {
 	MINIMAP_SHAPE_SQUARE,
 	MINIMAP_SHAPE_ROUND,
 };
 
 struct MinimapModeDef {
-	bool is_radar;
+	MinimapType type;
+	std::string label;
 	u16 scan_height;
 	u16 map_size;
+	std::string texture;
+	u16 scale;
 };
 
+struct MinimapMarker {
+	MinimapMarker(scene::ISceneNode *parent_node):
+		parent_node(parent_node)
+	{
+	}
+	scene::ISceneNode *parent_node;
+};
 struct MinimapPixel {
 	//! The topmost node that the minimap displays.
 	MapNode n;
@@ -69,12 +69,9 @@ struct MinimapMapblock {
 };
 
 struct MinimapData {
-	bool is_radar;
-	MinimapMode mode;
+	MinimapModeDef mode;
 	v3s16 pos;
 	v3s16 old_pos;
-	u16 scan_height;
-	u16 map_size;
 	MinimapPixel minimap_scan[MINIMAP_MAX_SX * MINIMAP_MAX_SY];
 	bool map_invalidated;
 	bool minimap_shape_round;
@@ -127,12 +124,22 @@ public:
 	v3s16 getPos() const { return data->pos; }
 	void setAngle(f32 angle);
 	f32 getAngle() const { return m_angle; }
-	void setMinimapMode(MinimapMode mode);
-	MinimapMode getMinimapMode() const { return data->mode; }
 	void toggleMinimapShape();
 	void setMinimapShape(MinimapShape shape);
 	MinimapShape getMinimapShape();
 
+	void clearModes() { m_modes.clear(); };
+	void addMode(MinimapModeDef mode);
+	void addMode(MinimapType type, u16 size = 0, std::string label = "",
+			std::string texture = "", u16 scale = 1);
+
+	void setModeIndex(size_t index);
+	size_t getModeIndex() const { return m_current_mode_index; };
+	size_t getMaxModeIndex() const { return m_modes.size() - 1; };
+	void nextMode();
+
+	void setModesFromString(std::string modes_string);
+	MinimapModeDef getModeDef() const { return data->mode; }
 
 	video::ITexture *getMinimapTexture();
 
@@ -142,8 +149,12 @@ public:
 
 	scene::SMeshBuffer *getMinimapMeshBuffer();
 
+	MinimapMarker* addMarker(scene::ISceneNode *parent_node);
+	void removeMarker(MinimapMarker **marker);
+
 	void updateActiveMarkers();
 	void drawMinimap();
+	void drawMinimap(core::rect<s32> rect);
 
 	video::IVideoDriver *driver;
 	Client* client;
@@ -153,11 +164,14 @@ private:
 	ITextureSource *m_tsrc;
 	IShaderSource *m_shdrsrc;
 	const NodeDefManager *m_ndef;
-	MinimapUpdateThread *m_minimap_update_thread;
+	MinimapUpdateThread *m_minimap_update_thread = nullptr;
 	scene::SMeshBuffer *m_meshbuffer;
 	bool m_enable_shaders;
+	std::vector<MinimapModeDef> m_modes;
+	size_t m_current_mode_index;
 	u16 m_surface_mode_scan_height;
 	f32 m_angle;
 	std::mutex m_mutex;
+	std::list<MinimapMarker*> m_markers;
 	std::list<v2f> m_active_markers;
 };
diff --git a/src/client/render/core.cpp b/src/client/render/core.cpp
index 1fad4af52..44e3ed744 100644
--- a/src/client/render/core.cpp
+++ b/src/client/render/core.cpp
@@ -123,34 +123,30 @@ void RenderingCore::drawTracersAndESP()
 	}
 	if (draw_node_esp || draw_node_tracers) {
 		Map &map = env.getMap();
-		std::map<v2s16, MapSector*> *sectors = map.getSectorsPtr();
-		
-		for (auto &sector_it : *sectors) {
-			MapSector *sector = sector_it.second;
-			MapBlockVect blocks;
-			sector->getBlocks(blocks);
-			for (MapBlock *block : blocks) {
-				if (! block->mesh)
-					continue;
-				for (v3s16 p : block->mesh->esp_nodes) {
-					v3f pos = intToFloat(p, BS) - camera_offset;
-					MapNode node = map.getNode(p);
-					std::vector<aabb3f> boxes;
-					node.getSelectionBoxes(client->getNodeDefManager(), &boxes, node.getNeighbors(p, &map));
-					video::SColor color = client->getNodeDefManager()->get(node).minimap_color;
-				
-					for (aabb3f box : boxes) {
-						box.MinEdge += pos;
-						box.MaxEdge += pos;
-						if (draw_node_esp)
-							driver->draw3DBox(box, color);
-						if (draw_node_tracers)
-							driver->draw3DLine(eye_pos, box.getCenter(), color);
-					}
+
+		std::vector<v3s16> positions;
+		map.listAllLoadedBlocks(positions);
+
+		for (v3s16 blockp : positions) {
+			MapBlock *block = map.getBlockNoCreate(blockp);
+			if (! block->mesh)
+				continue;
+			for (v3s16 p : block->mesh->esp_nodes) {
+				v3f pos = intToFloat(p, BS) - camera_offset;
+				MapNode node = map.getNode(p);
+				std::vector<aabb3f> boxes;
+				node.getSelectionBoxes(client->getNodeDefManager(), &boxes, node.getNeighbors(p, &map));
+				video::SColor color = client->getNodeDefManager()->get(node).minimap_color;
+				for (aabb3f box : boxes) {
+					box.MinEdge += pos;
+					box.MaxEdge += pos;
+					if (draw_node_esp)
+						driver->draw3DBox(box, color);
+					if (draw_node_tracers)
+						driver->draw3DLine(eye_pos, box.getCenter(), color);
 				}
 			}
 		}
-
 	}
 	
 	driver->setMaterial(oldmaterial);
diff --git a/src/client/shader.cpp b/src/client/shader.cpp
index ee6079f7a..1cec20d2c 100644
--- a/src/client/shader.cpp
+++ b/src/client/shader.cpp
@@ -37,6 +37,22 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "log.h"
 #include "gamedef.h"
 #include "client/tile.h"
+#include "config.h"
+
+#if ENABLE_GLES
+#ifdef _IRR_COMPILE_WITH_OGLES1_
+#include <GLES/gl.h>
+#else
+#include <GLES2/gl2.h>
+#endif
+#else
+#ifndef __APPLE__
+#include <GL/gl.h>
+#else
+#define GL_SILENCE_DEPRECATION
+#include <OpenGL/gl.h>
+#endif
+#endif
 
 /*
 	A cache from shader name to shader path
@@ -215,11 +231,24 @@ class MainShaderConstantSetter : public IShaderConstantSetter
 {
 	CachedVertexShaderSetting<float, 16> m_world_view_proj;
 	CachedVertexShaderSetting<float, 16> m_world;
+#if ENABLE_GLES
+	// Modelview matrix
+	CachedVertexShaderSetting<float, 16> m_world_view;
+	// Texture matrix
+	CachedVertexShaderSetting<float, 16> m_texture;
+	// Normal matrix
+	CachedVertexShaderSetting<float, 9> m_normal;
+#endif
 
 public:
 	MainShaderConstantSetter() :
-		m_world_view_proj("mWorldViewProj"),
-		m_world("mWorld")
+		  m_world_view_proj("mWorldViewProj")
+		, m_world("mWorld")
+#if ENABLE_GLES
+		, m_world_view("mWorldView")
+		, m_texture("mTexture")
+		, m_normal("mNormal")
+#endif
 	{}
 	~MainShaderConstantSetter() = default;
 
@@ -229,23 +258,42 @@ public:
 		video::IVideoDriver *driver = services->getVideoDriver();
 		sanity_check(driver);
 
+		// Set world matrix
+		core::matrix4 world = driver->getTransform(video::ETS_WORLD);
+		if (is_highlevel)
+			m_world.set(*reinterpret_cast<float(*)[16]>(world.pointer()), services);
+		else
+			services->setVertexShaderConstant(world.pointer(), 4, 4);
+
 		// Set clip matrix
+		core::matrix4 worldView;
+		worldView = driver->getTransform(video::ETS_VIEW);
+		worldView *= world;
 		core::matrix4 worldViewProj;
 		worldViewProj = driver->getTransform(video::ETS_PROJECTION);
-		worldViewProj *= driver->getTransform(video::ETS_VIEW);
-		worldViewProj *= driver->getTransform(video::ETS_WORLD);
+		worldViewProj *= worldView;
 		if (is_highlevel)
 			m_world_view_proj.set(*reinterpret_cast<float(*)[16]>(worldViewProj.pointer()), services);
 		else
 			services->setVertexShaderConstant(worldViewProj.pointer(), 0, 4);
 
-		// Set world matrix
-		core::matrix4 world = driver->getTransform(video::ETS_WORLD);
-		if (is_highlevel)
-			m_world.set(*reinterpret_cast<float(*)[16]>(world.pointer()), services);
-		else
-			services->setVertexShaderConstant(world.pointer(), 4, 4);
-
+#if ENABLE_GLES
+		if (is_highlevel) {
+			core::matrix4 texture = driver->getTransform(video::ETS_TEXTURE_0);
+			m_world_view.set(*reinterpret_cast<float(*)[16]>(worldView.pointer()), services);
+			m_texture.set(*reinterpret_cast<float(*)[16]>(texture.pointer()), services);
+
+			core::matrix4 normal;
+			worldView.getTransposed(normal);
+			sanity_check(normal.makeInverse());
+			float m[9] = {
+				normal[0], normal[1], normal[2],
+				normal[4], normal[5], normal[6],
+				normal[8], normal[9], normal[10],
+			};
+			m_normal.set(m, services);
+		}
+#endif
 	}
 };
 
@@ -529,7 +577,6 @@ ShaderInfo generate_shader(const std::string &name, u8 material_type, u8 drawtyp
 	shaderinfo.name = name;
 	shaderinfo.material_type = material_type;
 	shaderinfo.drawtype = drawtype;
-	shaderinfo.material = video::EMT_SOLID;
 	switch (material_type) {
 	case TILE_MATERIAL_OPAQUE:
 	case TILE_MATERIAL_LIQUID_OPAQUE:
@@ -550,6 +597,7 @@ ShaderInfo generate_shader(const std::string &name, u8 material_type, u8 drawtyp
 		shaderinfo.base_material = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 		break;
 	}
+	shaderinfo.material = shaderinfo.base_material;
 
 	bool enable_shaders = g_settings->getBool("enable_shaders");
 	if (!enable_shaders)
@@ -605,7 +653,62 @@ ShaderInfo generate_shader(const std::string &name, u8 material_type, u8 drawtyp
 		return shaderinfo;
 
 	// Create shaders header
-	std::string shaders_header = "#version 120\n";
+	bool use_gles = false;
+#if ENABLE_GLES
+	use_gles = driver->getDriverType() == video::EDT_OGLES2;
+#endif
+	std::string shaders_header, vertex_header, pixel_header; // geometry shaders aren’t supported in GLES<3
+	if (use_gles) {
+		shaders_header =
+			"#version 100\n"
+			;
+		vertex_header = R"(
+			uniform highp mat4 mWorldView;
+			uniform highp mat4 mWorldViewProj;
+			uniform mediump mat4 mTexture;
+			uniform mediump mat3 mNormal;
+
+			attribute highp vec4 inVertexPosition;
+			attribute lowp vec4 inVertexColor;
+			attribute mediump vec4 inTexCoord0;
+			attribute mediump vec3 inVertexNormal;
+			attribute mediump vec4 inVertexTangent;
+			attribute mediump vec4 inVertexBinormal;
+			)";
+		pixel_header = R"(
+			precision mediump float;
+			)";
+	} else {
+		shaders_header = R"(
+			#version 120
+			#define lowp
+			#define mediump
+			#define highp
+			)";
+		vertex_header = R"(
+			#define mWorldView gl_ModelViewMatrix
+			#define mWorldViewProj gl_ModelViewProjectionMatrix
+			#define mTexture (gl_TextureMatrix[0])
+			#define mNormal gl_NormalMatrix
+
+			#define inVertexPosition gl_Vertex
+			#define inVertexColor gl_Color
+			#define inTexCoord0 gl_MultiTexCoord0
+			#define inVertexNormal gl_Normal
+			#define inVertexTangent gl_MultiTexCoord1
+			#define inVertexBinormal gl_MultiTexCoord2
+			)";
+	}
+
+	bool use_discard = use_gles;
+#ifdef __unix__
+	// For renderers that should use discard instead of GL_ALPHA_TEST
+	const char* gl_renderer = (const char*)glGetString(GL_RENDERER);
+	if (strstr(gl_renderer, "GC7000"))
+		use_discard = true;
+#endif
+	if (use_discard && shaderinfo.base_material != video::EMT_SOLID)
+		shaders_header += "#define USE_DISCARD\n";
 
 	static const char* drawTypes[] = {
 		"NDT_NORMAL",
@@ -665,73 +768,16 @@ ShaderInfo generate_shader(const std::string &name, u8 material_type, u8 drawtyp
 	shaders_header += itos(drawtype);
 	shaders_header += "\n";
 
-	if (g_settings->getBool("generate_normalmaps")) {
-		shaders_header += "#define GENERATE_NORMALMAPS 1\n";
-	} else {
-		shaders_header += "#define GENERATE_NORMALMAPS 0\n";
-	}
-	shaders_header += "#define NORMALMAPS_STRENGTH ";
-	shaders_header += ftos(g_settings->getFloat("normalmaps_strength"));
-	shaders_header += "\n";
-	float sample_step;
-	int smooth = (int)g_settings->getFloat("normalmaps_smooth");
-	switch (smooth){
-	case 0:
-		sample_step = 0.0078125; // 1.0 / 128.0
-		break;
-	case 1:
-		sample_step = 0.00390625; // 1.0 / 256.0
-		break;
-	case 2:
-		sample_step = 0.001953125; // 1.0 / 512.0
-		break;
-	default:
-		sample_step = 0.0078125;
-		break;
-	}
-	shaders_header += "#define SAMPLE_STEP ";
-	shaders_header += ftos(sample_step);
-	shaders_header += "\n";
-
-	if (g_settings->getBool("enable_bumpmapping"))
-		shaders_header += "#define ENABLE_BUMPMAPPING\n";
-
-	if (g_settings->getBool("enable_parallax_occlusion")){
-		int mode = g_settings->getFloat("parallax_occlusion_mode");
-		float scale = g_settings->getFloat("parallax_occlusion_scale");
-		float bias = g_settings->getFloat("parallax_occlusion_bias");
-		int iterations = g_settings->getFloat("parallax_occlusion_iterations");
-		shaders_header += "#define ENABLE_PARALLAX_OCCLUSION\n";
-		shaders_header += "#define PARALLAX_OCCLUSION_MODE ";
-		shaders_header += itos(mode);
-		shaders_header += "\n";
-		shaders_header += "#define PARALLAX_OCCLUSION_SCALE ";
-		shaders_header += ftos(scale);
-		shaders_header += "\n";
-		shaders_header += "#define PARALLAX_OCCLUSION_BIAS ";
-		shaders_header += ftos(bias);
-		shaders_header += "\n";
-		shaders_header += "#define PARALLAX_OCCLUSION_ITERATIONS ";
-		shaders_header += itos(iterations);
-		shaders_header += "\n";
-	}
-
-	shaders_header += "#define USE_NORMALMAPS ";
-	if (g_settings->getBool("enable_bumpmapping") || g_settings->getBool("enable_parallax_occlusion"))
-		shaders_header += "1\n";
-	else
-		shaders_header += "0\n";
-
 	if (g_settings->getBool("enable_waving_water")){
 		shaders_header += "#define ENABLE_WAVING_WATER 1\n";
 		shaders_header += "#define WATER_WAVE_HEIGHT ";
-		shaders_header += ftos(g_settings->getFloat("water_wave_height"));
+		shaders_header += std::to_string(g_settings->getFloat("water_wave_height"));
 		shaders_header += "\n";
 		shaders_header += "#define WATER_WAVE_LENGTH ";
-		shaders_header += ftos(g_settings->getFloat("water_wave_length"));
+		shaders_header += std::to_string(g_settings->getFloat("water_wave_length"));
 		shaders_header += "\n";
 		shaders_header += "#define WATER_WAVE_SPEED ";
-		shaders_header += ftos(g_settings->getFloat("water_wave_speed"));
+		shaders_header += std::to_string(g_settings->getFloat("water_wave_speed"));
 		shaders_header += "\n";
 	} else{
 		shaders_header += "#define ENABLE_WAVING_WATER 0\n";
@@ -753,7 +799,7 @@ ShaderInfo generate_shader(const std::string &name, u8 material_type, u8 drawtyp
 		shaders_header += "#define ENABLE_TONE_MAPPING\n";
 
 	shaders_header += "#define FOG_START ";
-	shaders_header += ftos(rangelim(g_settings->getFloat("fog_start"), 0.0f, 0.99f));
+	shaders_header += std::to_string(rangelim(g_settings->getFloat("fog_start"), 0.0f, 0.99f));
 	shaders_header += "\n";
 
 	// Call addHighLevelShaderMaterial() or addShaderMaterial()
@@ -761,11 +807,11 @@ ShaderInfo generate_shader(const std::string &name, u8 material_type, u8 drawtyp
 	const c8* pixel_program_ptr = 0;
 	const c8* geometry_program_ptr = 0;
 	if (!vertex_program.empty()) {
-		vertex_program = shaders_header + vertex_program;
+		vertex_program = shaders_header + vertex_header + vertex_program;
 		vertex_program_ptr = vertex_program.c_str();
 	}
 	if (!pixel_program.empty()) {
-		pixel_program = shaders_header + pixel_program;
+		pixel_program = shaders_header + pixel_header + pixel_program;
 		pixel_program_ptr = pixel_program.c_str();
 	}
 	if (!geometry_program.empty()) {
@@ -847,27 +893,37 @@ void load_shaders(const std::string &name, SourceShaderCache *sourcecache,
 	geometry_program = "";
 	is_highlevel = false;
 
-	if(enable_shaders){
-		// Look for high level shaders
-		if(drivertype == video::EDT_DIRECT3D9){
-			// Direct3D 9: HLSL
-			// (All shaders in one file)
-			vertex_program = sourcecache->getOrLoad(name, "d3d9.hlsl");
-			pixel_program = vertex_program;
-			geometry_program = vertex_program;
-		}
-		else if(drivertype == video::EDT_OPENGL){
-			// OpenGL: GLSL
-			vertex_program = sourcecache->getOrLoad(name, "opengl_vertex.glsl");
-			pixel_program = sourcecache->getOrLoad(name, "opengl_fragment.glsl");
-			geometry_program = sourcecache->getOrLoad(name, "opengl_geometry.glsl");
-		}
-		if (!vertex_program.empty() || !pixel_program.empty() || !geometry_program.empty()){
-			is_highlevel = true;
-			return;
-		}
-	}
+	if (!enable_shaders)
+		return;
+
+	// Look for high level shaders
+	switch (drivertype) {
+	case video::EDT_DIRECT3D9:
+		// Direct3D 9: HLSL
+		// (All shaders in one file)
+		vertex_program = sourcecache->getOrLoad(name, "d3d9.hlsl");
+		pixel_program = vertex_program;
+		geometry_program = vertex_program;
+		break;
 
+	case video::EDT_OPENGL:
+#if ENABLE_GLES
+	case video::EDT_OGLES2:
+#endif
+		// OpenGL: GLSL
+		vertex_program = sourcecache->getOrLoad(name, "opengl_vertex.glsl");
+		pixel_program = sourcecache->getOrLoad(name, "opengl_fragment.glsl");
+		geometry_program = sourcecache->getOrLoad(name, "opengl_geometry.glsl");
+		break;
+
+	default:
+		// e.g. OpenGL ES 1 (with no shader support)
+		break;
+	}
+	if (!vertex_program.empty() || !pixel_program.empty() || !geometry_program.empty()){
+		is_highlevel = true;
+		return;
+	}
 }
 
 void dumpShaderProgram(std::ostream &output_stream,
diff --git a/src/client/sky.cpp b/src/client/sky.cpp
index 2e0cbca86..9a2614eda 100644
--- a/src/client/sky.cpp
+++ b/src/client/sky.cpp
@@ -1,6 +1,7 @@
 /*
 Minetest
 Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>
+Copyright (C) 2020 numzero, Lobachevskiy Vitaliy <numzer0@yandex.ru>
 
 This program is free software; you can redistribute it and/or modify
 it under the terms of the GNU Lesser General Public License as published by
@@ -34,16 +35,8 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "config.h"
 using namespace irr::core;
 
-Sky::Sky(s32 id, ITextureSource *tsrc) :
-		scene::ISceneNode(RenderingEngine::get_scene_manager()->getRootSceneNode(),
-			RenderingEngine::get_scene_manager(), id)
+static video::SMaterial baseMaterial()
 {
-	setAutomaticCulling(scene::EAC_OFF);
-	m_box.MaxEdge.set(0, 0, 0);
-	m_box.MinEdge.set(0, 0, 0);
-
-	// Create material
-
 	video::SMaterial mat;
 	mat.Lighting = false;
 #if ENABLE_GLES
@@ -56,14 +49,31 @@ Sky::Sky(s32 id, ITextureSource *tsrc) :
 	mat.TextureLayer[0].TextureWrapU = video::ETC_CLAMP_TO_EDGE;
 	mat.TextureLayer[0].TextureWrapV = video::ETC_CLAMP_TO_EDGE;
 	mat.BackfaceCulling = false;
+	return mat;
+};
+
+Sky::Sky(s32 id, ITextureSource *tsrc, IShaderSource *ssrc) :
+		scene::ISceneNode(RenderingEngine::get_scene_manager()->getRootSceneNode(),
+			RenderingEngine::get_scene_manager(), id)
+{
+	setAutomaticCulling(scene::EAC_OFF);
+	m_box.MaxEdge.set(0, 0, 0);
+	m_box.MinEdge.set(0, 0, 0);
+
+	m_enable_shaders = g_settings->getBool("enable_shaders");
 
-	m_materials[0] = mat;
+	// Create materials
 
-	m_materials[1] = mat;
+	m_materials[0] = baseMaterial();
+	m_materials[0].MaterialType = ssrc->getShaderInfo(ssrc->getShader("stars_shader", TILE_MATERIAL_ALPHA, 0)).material;
+	m_materials[0].Lighting = true;
+	m_materials[0].ColorMaterial = video::ECM_NONE;
+
+	m_materials[1] = baseMaterial();
 	//m_materials[1].MaterialType = video::EMT_TRANSPARENT_VERTEX_ALPHA;
 	m_materials[1].MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
 
-	m_materials[2] = mat;
+	m_materials[2] = baseMaterial();
 	m_materials[2].setTexture(0, tsrc->getTextureForMesh("sunrisebg.png"));
 	m_materials[2].MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
 	//m_materials[2].MaterialType = video::EMT_TRANSPARENT_ADD_COLOR;
@@ -80,7 +90,7 @@ Sky::Sky(s32 id, ITextureSource *tsrc) :
 		tsrc->getTexture(m_moon_params.tonemap) : NULL;
 
 	if (m_sun_texture) {
-		m_materials[3] = mat;
+		m_materials[3] = baseMaterial();
 		m_materials[3].setTexture(0, m_sun_texture);
 		m_materials[3].MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
 		// Disables texture filtering
@@ -92,7 +102,7 @@ Sky::Sky(s32 id, ITextureSource *tsrc) :
 			m_materials[3].Lighting = true;
 	}
 	if (m_moon_texture) {
-		m_materials[4] = mat;
+		m_materials[4] = baseMaterial();
 		m_materials[4].setTexture(0, m_moon_texture);
 		m_materials[4].MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
 		// Disables texture filtering
@@ -105,7 +115,7 @@ Sky::Sky(s32 id, ITextureSource *tsrc) :
 	}
 
 	for (int i = 5; i < 11; i++) {
-		m_materials[i] = mat;
+		m_materials[i] = baseMaterial();
 		m_materials[i].Lighting = true;
 		m_materials[i].MaterialType = video::EMT_SOLID;
 	}
@@ -202,7 +212,7 @@ void Sky::render()
 
 		const f32 t = 1.0f;
 		const f32 o = 0.0f;
-		static const u16 indices[4] = {0, 1, 2, 3};
+		static const u16 indices[6] = {0, 1, 2, 0, 2, 3};
 		video::S3DVertex vertices[4];
 
 		driver->setMaterial(m_materials[1]);
@@ -244,7 +254,7 @@ void Sky::render()
 						vertex.Pos.rotateXZBy(180);
 					}
 				}
-				driver->drawIndexedTriangleFan(&vertices[0], 4, indices, 2);
+				driver->drawIndexedTriangleList(&vertices[0], 4, indices, 2);
 			}
 		}
 
@@ -270,7 +280,7 @@ void Sky::render()
 						// Switch from -Z (south) to +Z (north)
 						vertex.Pos.rotateXZBy(-180);
 				}
-				driver->drawIndexedTriangleFan(&vertices[0], 4, indices, 2);
+				driver->drawIndexedTriangleList(&vertices[0], 4, indices, 2);
 			}
 		}
 
@@ -301,7 +311,7 @@ void Sky::render()
 					// Switch from -Z (south) to -X (west)
 					vertex.Pos.rotateXZBy(-90);
 			}
-			driver->drawIndexedTriangleFan(&vertices[0], 4, indices, 2);
+			driver->drawIndexedTriangleList(&vertices[0], 4, indices, 2);
 		}
 
 		// Draw sun
@@ -337,7 +347,7 @@ void Sky::render()
 						// Switch from -Z (south) to +Z (north)
 						vertex.Pos.rotateXZBy(-180);
 				}
-				driver->drawIndexedTriangleFan(&vertices[0], 4, indices, 2);
+				driver->drawIndexedTriangleList(&vertices[0], 4, indices, 2);
 			}
 
 			// Draw bottom far cloudy fog thing in front of sun, moon and stars
@@ -346,7 +356,7 @@ void Sky::render()
 			vertices[1] = video::S3DVertex( 1, -1.0, -1, 0, 1, 0, c, o, t);
 			vertices[2] = video::S3DVertex( 1, -1.0, 1, 0, 1, 0, c, o, o);
 			vertices[3] = video::S3DVertex(-1, -1.0, 1, 0, 1, 0, c, t, o);
-			driver->drawIndexedTriangleFan(&vertices[0], 4, indices, 2);
+			driver->drawIndexedTriangleList(&vertices[0], 4, indices, 2);
 		}
 	}
 }
@@ -590,7 +600,7 @@ void Sky::draw_sun(video::IVideoDriver *driver, float sunsize, const video::SCol
 	 * wicked_time_of_day: current time of day, to know where should be the sun in the sky
 	 */
 {
-	static const u16 indices[4] = {0, 1, 2, 3};
+	static const u16 indices[] = {0, 1, 2, 0, 2, 3};
 	std::array<video::S3DVertex, 4> vertices;
 	if (!m_sun_texture) {
 		driver->setMaterial(m_materials[1]);
@@ -608,7 +618,7 @@ void Sky::draw_sun(video::IVideoDriver *driver, float sunsize, const video::SCol
 		for (int i = 0; i < 4; i++) {
 			draw_sky_body(vertices, -sunsizes[i], sunsizes[i], colors[i]);
 			place_sky_body(vertices, 90, wicked_time_of_day * 360 - 90);
-			driver->drawIndexedTriangleFan(&vertices[0], 4, indices, 2);
+			driver->drawIndexedTriangleList(&vertices[0], 4, indices, 2);
 		}
 	} else {
 		driver->setMaterial(m_materials[3]);
@@ -620,7 +630,7 @@ void Sky::draw_sun(video::IVideoDriver *driver, float sunsize, const video::SCol
 			c = video::SColor(255, 255, 255, 255);
 		draw_sky_body(vertices, -d, d, c);
 		place_sky_body(vertices, 90, wicked_time_of_day * 360 - 90);
-		driver->drawIndexedTriangleFan(&vertices[0], 4, indices, 2);
+		driver->drawIndexedTriangleList(&vertices[0], 4, indices, 2);
 	}
 }
 
@@ -637,7 +647,7 @@ void Sky::draw_moon(video::IVideoDriver *driver, float moonsize, const video::SC
 	* the sky
 	*/
 {
-	static const u16 indices[4] = {0, 1, 2, 3};
+	static const u16 indices[] = {0, 1, 2, 0, 2, 3};
 	std::array<video::S3DVertex, 4> vertices;
 	if (!m_moon_texture) {
 		driver->setMaterial(m_materials[1]);
@@ -661,7 +671,7 @@ void Sky::draw_moon(video::IVideoDriver *driver, float moonsize, const video::SC
 		for (int i = 0; i < 4; i++) {
 			draw_sky_body(vertices, moonsizes_1[i], moonsizes_2[i], colors[i]);
 			place_sky_body(vertices, -90, wicked_time_of_day * 360 - 90);
-			driver->drawIndexedTriangleFan(&vertices[0], 4, indices, 2);
+			driver->drawIndexedTriangleList(&vertices[0], 4, indices, 2);
 		}
 	} else {
 		driver->setMaterial(m_materials[4]);
@@ -673,13 +683,12 @@ void Sky::draw_moon(video::IVideoDriver *driver, float moonsize, const video::SC
 			c = video::SColor(255, 255, 255, 255);
 		draw_sky_body(vertices, -d, d, c);
 		place_sky_body(vertices, -90, wicked_time_of_day * 360 - 90);
-		driver->drawIndexedTriangleFan(&vertices[0], 4, indices, 2);
+		driver->drawIndexedTriangleList(&vertices[0], 4, indices, 2);
 	}
 }
 
 void Sky::draw_stars(video::IVideoDriver * driver, float wicked_time_of_day)
 {
-	driver->setMaterial(m_materials[1]);
 	// Tune values so that stars first appear just after the sun
 	// disappears over the horizon, and disappear just before the sun
 	// appears over the horizon.
@@ -687,87 +696,18 @@ void Sky::draw_stars(video::IVideoDriver * driver, float wicked_time_of_day)
 	// to time 4000.
 
 	float tod = wicked_time_of_day < 0.5f ? wicked_time_of_day : (1.0f - wicked_time_of_day);
-	float starbrightness = clamp((0.25f - fabsf(tod)) * 20.0f, 0.0f, 1.0f);
-
-	float f = starbrightness;
-	float d = (0.006 / 2) * m_star_params.scale;
-
-	video::SColor starcolor = m_star_params.starcolor;
-	starcolor.setAlpha(f * m_star_params.starcolor.getAlpha());
-
-	// Stars are only drawn when not fully transparent
-	if (m_star_params.starcolor.getAlpha() < 1)
+	float starbrightness = (0.25f - fabsf(tod)) * 20.0f;
+	m_star_color = m_star_params.starcolor;
+	m_star_color.a *= clamp(starbrightness, 0.0f, 1.0f);
+	if (m_star_color.a <= 0.0f) // Stars are only drawn when not fully transparent
 		return;
-#if ENABLE_GLES
-	u16 *indices = new u16[m_star_params.count * 3];
-	video::S3DVertex *vertices =
-			new video::S3DVertex[m_star_params.count * 3];
-	for (u32 i = 0; i < m_star_params.count; i++) {
-		indices[i * 3 + 0] = i * 3 + 0;
-		indices[i * 3 + 1] = i * 3 + 1;
-		indices[i * 3 + 2] = i * 3 + 2;
-		v3f r = m_stars[i];
-		core::CMatrix4<f32> a;
-		a.buildRotateFromTo(v3f(0, 1, 0), r);
-		v3f p = v3f(-d, 1, -d);
-		v3f p1 = v3f(d, 1, 0);
-		v3f p2 = v3f(-d, 1, d);
-		a.rotateVect(p);
-		a.rotateVect(p1);
-		a.rotateVect(p2);
-		p.rotateXYBy(wicked_time_of_day * 360 - 90);
-		p1.rotateXYBy(wicked_time_of_day * 360 - 90);
-		p2.rotateXYBy(wicked_time_of_day * 360 - 90);
-		vertices[i * 3 + 0].Pos = p;
-		vertices[i * 3 + 0].Color = starcolor;
-		vertices[i * 3 + 1].Pos = p1;
-		vertices[i * 3 + 1].Color = starcolor;
-		vertices[i * 3 + 2].Pos = p2;
-		vertices[i * 3 + 2].Color = starcolor;
-	}
-	driver->drawIndexedTriangleList(vertices, m_star_params.count * 3,
-			indices, m_star_params.count);
-	delete[] indices;
-	delete[] vertices;
-#else
-	u16 *indices = new u16[m_star_params.count * 4];
-	video::S3DVertex *vertices =
-			new video::S3DVertex[m_star_params.count * 4];
-	for (u32 i = 0; i < m_star_params.count; i++) {
-		indices[i * 4 + 0] = i * 4 + 0;
-		indices[i * 4 + 1] = i * 4 + 1;
-		indices[i * 4 + 2] = i * 4 + 2;
-		indices[i * 4 + 3] = i * 4 + 3;
-		v3f r = m_stars[i];
-		core::CMatrix4<f32> a;
-		a.buildRotateFromTo(v3f(0, 1, 0), r);
-		v3f p = v3f(-d, 1, -d);
-		v3f p1 = v3f(d, 1, -d);
-		v3f p2 = v3f(d, 1, d);
-		v3f p3 = v3f(-d, 1, d);
-		a.rotateVect(p);
-		a.rotateVect(p1);
-		a.rotateVect(p2);
-		a.rotateVect(p3);
-		p.rotateXYBy(wicked_time_of_day * 360 - 90);
-		p1.rotateXYBy(wicked_time_of_day * 360 - 90);
-		p2.rotateXYBy(wicked_time_of_day * 360 - 90);
-		p3.rotateXYBy(wicked_time_of_day * 360 - 90);
-		vertices[i * 4 + 0].Pos = p;
-		vertices[i * 4 + 0].Color = starcolor;
-		vertices[i * 4 + 1].Pos = p1;
-		vertices[i * 4 + 1].Color = starcolor;
-		vertices[i * 4 + 2].Pos = p2;
-		vertices[i * 4 + 2].Color = starcolor;
-		vertices[i * 4 + 3].Pos = p3;
-		vertices[i * 4 + 3].Color = starcolor;
-	}
-	driver->drawVertexPrimitiveList(vertices, m_star_params.count * 4,
-			indices, m_star_params.count, video::EVT_STANDARD,
-			scene::EPT_QUADS, video::EIT_16BIT);
-	delete[] indices;
-	delete[] vertices;
-#endif
+	m_materials[0].DiffuseColor = m_materials[0].EmissiveColor = m_star_color.toSColor();
+	auto sky_rotation = core::matrix4().setRotationAxisRadians(2.0f * M_PI * (wicked_time_of_day - 0.25f), v3f(0.0f, 0.0f, 1.0f));
+	auto world_matrix = driver->getTransform(video::ETS_WORLD);
+	driver->setTransform(video::ETS_WORLD, world_matrix * sky_rotation);
+	driver->setMaterial(m_materials[0]);
+	driver->drawMeshBuffer(m_stars.get());
+	driver->setTransform(video::ETS_WORLD, world_matrix);
 }
 
 void Sky::draw_sky_body(std::array<video::S3DVertex, 4> &vertices, float pos_1, float pos_2, const video::SColor &c)
@@ -822,7 +762,7 @@ void Sky::setSunTexture(std::string sun_texture,
 		m_sun_texture = tsrc->getTextureForMesh(m_sun_params.texture);
 
 		if (m_sun_texture) {
-			m_materials[3] = m_materials[0];
+			m_materials[3] = baseMaterial();
 			m_materials[3].setTexture(0, m_sun_texture);
 			m_materials[3].MaterialType = video::
 				EMT_TRANSPARENT_ALPHA_CHANNEL;
@@ -870,7 +810,7 @@ void Sky::setMoonTexture(std::string moon_texture,
 		m_moon_texture = tsrc->getTextureForMesh(m_moon_params.texture);
 
 		if (m_moon_texture) {
-			m_materials[4] = m_materials[0];
+			m_materials[4] = baseMaterial();
 			m_materials[4].setTexture(0, m_moon_texture);
 			m_materials[4].MaterialType = video::
 				EMT_TRANSPARENT_ALPHA_CHANNEL;
@@ -892,19 +832,58 @@ void Sky::setStarCount(u16 star_count, bool force_update)
 	// Allow force updating star count at game init.
 	if (m_star_params.count != star_count || force_update) {
 		m_star_params.count = star_count;
-		m_stars.clear();
-		// Rebuild the stars surrounding the camera
-		for (u16 i = 0; i < star_count; i++) {
-			v3f star = v3f(
-				myrand_range(-10000, 10000),
-				myrand_range(-10000, 10000),
-				myrand_range(-10000, 10000)
-			);
-
-			star.normalize();
-			m_stars.emplace_back(star);
-		}
+		m_seed = (u64)myrand() << 32 | myrand();
+		updateStars();
+	}
+}
+
+void Sky::updateStars()
+{
+	m_stars.reset(new scene::SMeshBuffer());
+	// Stupid IrrLicht doesn’t allow non-indexed rendering, and indexed quad
+	// rendering is slow due to lack of hardware support. So as indices are
+	// 16-bit and there are 4 vertices per star... the limit is 2^16/4 = 0x4000.
+	// That should be well enough actually.
+	if (m_star_params.count > 0x4000) {
+		warningstream << "Requested " << m_star_params.count << " stars but " << 0x4000 << " is the max\n";
+		m_star_params.count = 0x4000;
+	}
+	m_stars->Vertices.reallocate(4 * m_star_params.count);
+	m_stars->Indices.reallocate(6 * m_star_params.count);
+
+	video::SColor fallback_color = m_star_params.starcolor; // used on GLES 2 “without shaders”
+	PcgRandom rgen(m_seed);
+	float d = (0.006 / 2) * m_star_params.scale;
+	for (u16 i = 0; i < m_star_params.count; i++) {
+		v3f r = v3f(
+			rgen.range(-10000, 10000),
+			rgen.range(-10000, 10000),
+			rgen.range(-10000, 10000)
+		);
+		core::CMatrix4<f32> a;
+		a.buildRotateFromTo(v3f(0, 1, 0), r);
+		v3f p = v3f(-d, 1, -d);
+		v3f p1 = v3f(d, 1, -d);
+		v3f p2 = v3f(d, 1, d);
+		v3f p3 = v3f(-d, 1, d);
+		a.rotateVect(p);
+		a.rotateVect(p1);
+		a.rotateVect(p2);
+		a.rotateVect(p3);
+		m_stars->Vertices.push_back(video::S3DVertex(p, {}, fallback_color, {}));
+		m_stars->Vertices.push_back(video::S3DVertex(p1, {}, fallback_color, {}));
+		m_stars->Vertices.push_back(video::S3DVertex(p2, {}, fallback_color, {}));
+		m_stars->Vertices.push_back(video::S3DVertex(p3, {}, fallback_color, {}));
+	}
+	for (u16 i = 0; i < m_star_params.count; i++) {
+		m_stars->Indices.push_back(i * 4 + 0);
+		m_stars->Indices.push_back(i * 4 + 1);
+		m_stars->Indices.push_back(i * 4 + 2);
+		m_stars->Indices.push_back(i * 4 + 2);
+		m_stars->Indices.push_back(i * 4 + 3);
+		m_stars->Indices.push_back(i * 4 + 0);
 	}
+	m_stars->setHardwareMappingHint(scene::EHM_STATIC);
 }
 
 void Sky::setSkyColors(const SkyColor &sky_color)
@@ -936,7 +915,7 @@ void Sky::addTextureToSkybox(std::string texture, int material_id,
 	// Keep a list of texture names handy.
 	m_sky_params.textures.emplace_back(texture);
 	video::ITexture *result = tsrc->getTextureForMesh(texture);
-	m_materials[material_id+5] = m_materials[0];
+	m_materials[material_id+5] = baseMaterial();
 	m_materials[material_id+5].setTexture(0, result);
 	m_materials[material_id+5].MaterialType = video::EMT_SOLID;
 }
diff --git a/src/client/sky.h b/src/client/sky.h
index 3227e8f59..10e1cd976 100644
--- a/src/client/sky.h
+++ b/src/client/sky.h
@@ -21,6 +21,8 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include <array>
 #include "camera.h"
 #include "irrlichttypes_extrabloated.h"
+#include "irr_ptr.h"
+#include "shader.h"
 #include "skyparams.h"
 
 #pragma once
@@ -34,7 +36,7 @@ class Sky : public scene::ISceneNode
 {
 public:
 	//! constructor
-	Sky(s32 id, ITextureSource *tsrc);
+	Sky(s32 id, ITextureSource *tsrc, IShaderSource *ssrc);
 
 	virtual void OnRegisterSceneNode();
 
@@ -77,7 +79,7 @@ public:
 	void setStarsVisible(bool stars_visible) { m_star_params.visible = stars_visible; }
 	void setStarCount(u16 star_count, bool force_update);
 	void setStarColor(video::SColor star_color) { m_star_params.starcolor = star_color; }
-	void setStarScale(f32 star_scale) { m_star_params.scale = star_scale; }
+	void setStarScale(f32 star_scale) { m_star_params.scale = star_scale; updateStars(); }
 
 	bool getCloudsVisible() const { return m_clouds_visible && m_clouds_enabled; }
 	const video::SColorf &getCloudColor() const { return m_cloudcolor_f; }
@@ -101,6 +103,8 @@ public:
 	void clearSkyboxTextures() { m_sky_params.textures.clear(); }
 	void addTextureToSkybox(std::string texture, int material_id,
 		ITextureSource *tsrc);
+	const video::SColorf &getCurrentStarColor() const { return m_star_color; }
+
 private:
 	aabb3f m_box;
 	video::SMaterial m_materials[SKY_MATERIAL_COUNT];
@@ -154,6 +158,7 @@ private:
 	bool m_clouds_enabled = true; // Initialised to true, reset only by set_sky API
 	bool m_directional_colored_fog;
 	bool m_in_clouds = true; // Prevent duplicating bools to remember old values
+	bool m_enable_shaders = false;
 
 	video::SColorf m_bgcolor_bright_f = video::SColorf(1.0f, 1.0f, 1.0f, 1.0f);
 	video::SColorf m_skycolor_bright_f = video::SColorf(1.0f, 1.0f, 1.0f, 1.0f);
@@ -178,13 +183,17 @@ private:
 
 	bool m_default_tint = true;
 
-	std::vector<v3f> m_stars;
+	u64 m_seed = 0;
+	irr_ptr<scene::SMeshBuffer> m_stars;
+	video::SColorf m_star_color;
 
 	video::ITexture *m_sun_texture;
 	video::ITexture *m_moon_texture;
 	video::ITexture *m_sun_tonemap;
 	video::ITexture *m_moon_tonemap;
 
+	void updateStars();
+
 	void draw_sun(video::IVideoDriver *driver, float sunsize, const video::SColor &suncolor,
 		const video::SColor &suncolor2, float wicked_time_of_day);
 	void draw_moon(video::IVideoDriver *driver, float moonsize, const video::SColor &mooncolor,
diff --git a/src/client/sound_openal.cpp b/src/client/sound_openal.cpp
index 20a651c1d..f4e61f93e 100644
--- a/src/client/sound_openal.cpp
+++ b/src/client/sound_openal.cpp
@@ -28,6 +28,7 @@ with this program; ifnot, write to the Free Software Foundation, Inc.,
 	#include <alc.h>
 	//#include <alext.h>
 #elif defined(__APPLE__)
+	#define OPENAL_DEPRECATED
 	#include <OpenAL/al.h>
 	#include <OpenAL/alc.h>
 	//#include <OpenAL/alext.h>
@@ -337,14 +338,12 @@ private:
 	};
 
 	std::unordered_map<int, FadeState> m_sounds_fading;
-	float m_fade_delay;
 public:
 	OpenALSoundManager(SoundManagerSingleton *smg, OnDemandSoundFetcher *fetcher):
 		m_fetcher(fetcher),
 		m_device(smg->m_device.get()),
 		m_context(smg->m_context.get()),
-		m_next_id(1),
-		m_fade_delay(0)
+		m_next_id(1)
 	{
 		infostream << "Audio: Initialized: OpenAL " << std::endl;
 	}
@@ -616,38 +615,45 @@ public:
 
 	void fadeSound(int soundid, float step, float gain)
 	{
-		m_sounds_fading[soundid] = FadeState(step, getSoundGain(soundid), gain);
+		// Ignore the command if step isn't valid.
+		if (step == 0)
+			return;
+		float current_gain = getSoundGain(soundid);
+		step = gain - current_gain > 0 ? abs(step) : -abs(step);
+		if (m_sounds_fading.find(soundid) != m_sounds_fading.end()) {
+			auto current_fade = m_sounds_fading[soundid];
+			// Do not replace the fade if it's equivalent.
+			if (current_fade.target_gain == gain && current_fade.step == step)
+				return;
+			m_sounds_fading.erase(soundid);
+		}
+		gain = rangelim(gain, 0, 1);
+		m_sounds_fading[soundid] = FadeState(step, current_gain, gain);
 	}
 
 	void doFades(float dtime)
 	{
-		m_fade_delay += dtime;
-
-		if (m_fade_delay < 0.1f)
-			return;
+		for (auto i = m_sounds_fading.begin(); i != m_sounds_fading.end();) {
+			FadeState& fade = i->second;
+			assert(fade.step != 0);
+			fade.current_gain += (fade.step * dtime);
 
-		float chkGain = 0;
-		for (auto i = m_sounds_fading.begin();
-				i != m_sounds_fading.end();) {
-			if (i->second.step < 0.f)
-				chkGain = -(i->second.current_gain);
+			if (fade.step < 0.f)
+				fade.current_gain = std::max(fade.current_gain, fade.target_gain);
 			else
-				chkGain = i->second.current_gain;
+				fade.current_gain = std::min(fade.current_gain, fade.target_gain);
 
-			if (chkGain < i->second.target_gain) {
-				i->second.current_gain += (i->second.step * m_fade_delay);
-				i->second.current_gain = rangelim(i->second.current_gain, 0, 1);
-
-				updateSoundGain(i->first, i->second.current_gain);
-				++i;
-			} else {
-				if (i->second.target_gain <= 0.f)
-					stopSound(i->first);
+			if (fade.current_gain <= 0.f)
+				stopSound(i->first);
+			else
+				updateSoundGain(i->first, fade.current_gain);
 
+			// The increment must happen during the erase call, or else it'll segfault.
+			if (fade.current_gain == fade.target_gain)
 				m_sounds_fading.erase(i++);
-			}
+			else
+				i++;
 		}
-		m_fade_delay = 0;
 	}
 
 	bool soundExists(int sound)
diff --git a/src/client/wieldmesh.cpp b/src/client/wieldmesh.cpp
index 8cd3e29a9..ad583210a 100644
--- a/src/client/wieldmesh.cpp
+++ b/src/client/wieldmesh.cpp
@@ -303,13 +303,24 @@ void WieldMeshSceneNode::setExtruded(const std::string &imagename,
 	}
 }
 
-scene::SMesh *createSpecialNodeMesh(Client *client, content_t id, std::vector<ItemPartColor> *colors)
+scene::SMesh *createSpecialNodeMesh(Client *client, content_t id, std::vector<ItemPartColor> *colors, const ContentFeatures &f)
 {
-	MeshMakeData mesh_make_data(client, false, false);
+	MeshMakeData mesh_make_data(client, false);
 	MeshCollector collector;
 	mesh_make_data.setSmoothLighting(false);
 	MapblockMeshGenerator gen(&mesh_make_data, &collector);
-	gen.renderSingle(id);
+	u8 param2 = 0;
+	if (f.param_type_2 == CPT2_WALLMOUNTED ||
+			f.param_type_2 == CPT2_COLORED_WALLMOUNTED) {
+		if (f.drawtype == NDT_TORCHLIKE)
+			param2 = 1;
+		else if (f.drawtype == NDT_SIGNLIKE ||
+				f.drawtype == NDT_NODEBOX ||
+				f.drawtype == NDT_MESH)
+			param2 = 4;
+	}
+	gen.renderSingle(id, param2);
+
 	colors->clear();
 	scene::SMesh *mesh = new scene::SMesh();
 	for (auto &prebuffers : collector.prebuffers)
@@ -319,8 +330,9 @@ scene::SMesh *createSpecialNodeMesh(Client *client, content_t id, std::vector<It
 				p.layer.texture = frame.texture;
 				p.layer.normal_texture = frame.normal_texture;
 			}
-			for (video::S3DVertex &v : p.vertices)
+			for (video::S3DVertex &v : p.vertices) {
 				v.Color.setAlpha(255);
+			}
 			scene::SMeshBuffer *buf = new scene::SMeshBuffer();
 			buf->Material.setTexture(0, p.layer.texture);
 			p.layer.applyMaterialOptions(buf->Material);
@@ -368,73 +380,61 @@ void WieldMeshSceneNode::setItem(const ItemStack &item, Client *client, bool che
 	// Handle nodes
 	// See also CItemDefManager::createClientCached()
 	if (def.type == ITEM_NODE) {
-		if (f.mesh_ptr[0]) {
-			// e.g. mesh nodes and nodeboxes
-			mesh = cloneMesh(f.mesh_ptr[0]);
-			postProcessNodeMesh(mesh, f, m_enable_shaders, true,
-				&m_material_type, &m_colors);
+		bool cull_backface = f.needsBackfaceCulling();
+
+		// Select rendering method
+		switch (f.drawtype) {
+		case NDT_AIRLIKE:
+			setExtruded("no_texture_airlike.png", "",
+				v3f(1.0, 1.0, 1.0), tsrc, 1);
+			break;
+		case NDT_SIGNLIKE:
+		case NDT_TORCHLIKE:
+		case NDT_RAILLIKE:
+		case NDT_PLANTLIKE:
+		case NDT_PLANTLIKE_ROOTED:
+		case NDT_FLOWINGLIQUID: {
+			v3f wscale = def.wield_scale;
+			if (f.drawtype == NDT_FLOWINGLIQUID)
+				wscale.Z *= 0.1f;
+			setExtruded(tsrc->getTextureName(f.tiles[0].layers[0].texture_id),
+				tsrc->getTextureName(f.tiles[0].layers[1].texture_id),
+				wscale, tsrc,
+				f.tiles[0].layers[0].animation_frame_count);
+			// Add color
+			const TileLayer &l0 = f.tiles[0].layers[0];
+			m_colors.emplace_back(l0.has_color, l0.color);
+			const TileLayer &l1 = f.tiles[0].layers[1];
+			m_colors.emplace_back(l1.has_color, l1.color);
+			break;
+		}
+		case NDT_NORMAL:
+		case NDT_ALLFACES:
+		case NDT_LIQUID:
+			setCube(f, def.wield_scale);
+			break;
+		default:
+			// Render non-trivial drawtypes like the actual node
+			mesh = createSpecialNodeMesh(client, id, &m_colors, f);
 			changeToMesh(mesh);
 			mesh->drop();
-			// mesh is pre-scaled by BS * f->visual_scale
 			m_meshnode->setScale(
-					def.wield_scale * WIELD_SCALE_FACTOR
-					/ (BS * f.visual_scale));
-		} else {
-			switch (f.drawtype) {
-				case NDT_AIRLIKE: {
-					changeToMesh(nullptr);
-					break;
-				}
-				case NDT_PLANTLIKE: {
-					setExtruded(tsrc->getTextureName(f.tiles[0].layers[0].texture_id),
-						tsrc->getTextureName(f.tiles[0].layers[1].texture_id),
-						def.wield_scale, tsrc,
-						f.tiles[0].layers[0].animation_frame_count);
-					// Add color
-					const TileLayer &l0 = f.tiles[0].layers[0];
-					m_colors.emplace_back(l0.has_color, l0.color);
-					const TileLayer &l1 = f.tiles[0].layers[1];
-					m_colors.emplace_back(l1.has_color, l1.color);
-					break;
-				}
-				case NDT_PLANTLIKE_ROOTED: {
-					setExtruded(tsrc->getTextureName(f.special_tiles[0].layers[0].texture_id),
-						"", def.wield_scale, tsrc,
-						f.special_tiles[0].layers[0].animation_frame_count);
-					// Add color
-					const TileLayer &l0 = f.special_tiles[0].layers[0];
-					m_colors.emplace_back(l0.has_color, l0.color);
-					break;
-				}
-				case NDT_NORMAL:
-				case NDT_ALLFACES:
-				case NDT_LIQUID:
-				case NDT_FLOWINGLIQUID: {
-					setCube(f, def.wield_scale);
-					break;
-				}
-				default: {
-					mesh = createSpecialNodeMesh(client, id, &m_colors);
-					changeToMesh(mesh);
-					mesh->drop();
-					m_meshnode->setScale(
-							def.wield_scale * WIELD_SCALE_FACTOR
-							/ (BS * f.visual_scale));
-				}
-			}
+				def.wield_scale * WIELD_SCALE_FACTOR
+				/ (BS * f.visual_scale));
+			break;
 		}
+
 		u32 material_count = m_meshnode->getMaterialCount();
 		for (u32 i = 0; i < material_count; ++i) {
 			video::SMaterial &material = m_meshnode->getMaterial(i);
 			material.MaterialType = m_material_type;
 			material.MaterialTypeParam = 0.5f;
-			material.setFlag(video::EMF_BACK_FACE_CULLING, true);
+			material.setFlag(video::EMF_BACK_FACE_CULLING, cull_backface);
 			material.setFlag(video::EMF_BILINEAR_FILTER, m_bilinear_filter);
 			material.setFlag(video::EMF_TRILINEAR_FILTER, m_trilinear_filter);
 		}
 		return;
-	}
-	else if (!def.inventory_image.empty()) {
+	} else if (!def.inventory_image.empty()) {
 		setExtruded(def.inventory_image, def.inventory_overlay, def.wield_scale,
 			tsrc, 1);
 		m_colors.emplace_back();
@@ -529,6 +529,8 @@ void getItemMesh(Client *client, const ItemStack &item, ItemMesh *result)
 	// Shading is on by default
 	result->needs_shading = true;
 
+	bool cull_backface = f.needsBackfaceCulling();
+
 	// If inventory_image is defined, it overrides everything else
 	if (!def.inventory_image.empty()) {
 		mesh = getExtrudedMesh(tsrc, def.inventory_image,
@@ -538,51 +540,56 @@ void getItemMesh(Client *client, const ItemStack &item, ItemMesh *result)
 		result->buffer_colors.emplace_back(true, video::SColor(0xFFFFFFFF));
 		// Items with inventory images do not need shading
 		result->needs_shading = false;
+	} else if (def.type == ITEM_NODE && f.drawtype == NDT_AIRLIKE) {
+		// Fallback image for airlike node
+		mesh = getExtrudedMesh(tsrc, "no_texture_airlike.png",
+			def.inventory_overlay);
+		result->needs_shading = false;
 	} else if (def.type == ITEM_NODE) {
-		if (f.mesh_ptr[0]) {
-			mesh = cloneMesh(f.mesh_ptr[0]);
-			scaleMesh(mesh, v3f(0.12, 0.12, 0.12));
+		switch (f.drawtype) {
+		case NDT_NORMAL:
+		case NDT_ALLFACES:
+		case NDT_LIQUID:
+		case NDT_FLOWINGLIQUID: {
+			scene::IMesh *cube = g_extrusion_mesh_cache->createCube();
+			mesh = cloneMesh(cube);
+			cube->drop();
+			if (f.drawtype == NDT_FLOWINGLIQUID) {
+				scaleMesh(mesh, v3f(1.2, 0.03, 1.2));
+				translateMesh(mesh, v3f(0, -0.57, 0));
+			} else
+				scaleMesh(mesh, v3f(1.2, 1.2, 1.2));
+			// add overlays
 			postProcessNodeMesh(mesh, f, false, false, nullptr,
-				&result->buffer_colors);
-		} else {
-			switch (f.drawtype) {
-				case NDT_PLANTLIKE: {
-					mesh = getExtrudedMesh(tsrc,
-						tsrc->getTextureName(f.tiles[0].layers[0].texture_id),
-						tsrc->getTextureName(f.tiles[0].layers[1].texture_id));
-					// Add color
-					const TileLayer &l0 = f.tiles[0].layers[0];
-					result->buffer_colors.emplace_back(l0.has_color, l0.color);
-					const TileLayer &l1 = f.tiles[0].layers[1];
-					result->buffer_colors.emplace_back(l1.has_color, l1.color);
-					break;
-				}
-				case NDT_PLANTLIKE_ROOTED: {
-					mesh = getExtrudedMesh(tsrc,
-						tsrc->getTextureName(f.special_tiles[0].layers[0].texture_id), "");
-					// Add color
-					const TileLayer &l0 = f.special_tiles[0].layers[0];
-					result->buffer_colors.emplace_back(l0.has_color, l0.color);
-					break;
-				}
-				case NDT_NORMAL:
-				case NDT_ALLFACES:
-				case NDT_LIQUID:
-				case NDT_FLOWINGLIQUID: {
-					scene::IMesh *cube = g_extrusion_mesh_cache->createCube();
-					mesh = cloneMesh(cube);
-					cube->drop();
-					scaleMesh(mesh, v3f(1.2, 1.2, 1.2));
-					// add overlays
-					postProcessNodeMesh(mesh, f, false, false, nullptr,
-						&result->buffer_colors);
-					break;
-				}
-				default: {
-					mesh = createSpecialNodeMesh(client, id, &result->buffer_colors);
-					scaleMesh(mesh, v3f(0.12, 0.12, 0.12));
-				}
-			}
+				&result->buffer_colors, true);
+			if (f.drawtype == NDT_ALLFACES)
+				scaleMesh(mesh, v3f(f.visual_scale));
+			break;
+		}
+		case NDT_PLANTLIKE: {
+			mesh = getExtrudedMesh(tsrc,
+				tsrc->getTextureName(f.tiles[0].layers[0].texture_id),
+				tsrc->getTextureName(f.tiles[0].layers[1].texture_id));
+			// Add color
+			const TileLayer &l0 = f.tiles[0].layers[0];
+			result->buffer_colors.emplace_back(l0.has_color, l0.color);
+			const TileLayer &l1 = f.tiles[0].layers[1];
+			result->buffer_colors.emplace_back(l1.has_color, l1.color);
+			break;
+		}
+		case NDT_PLANTLIKE_ROOTED: {
+			mesh = getExtrudedMesh(tsrc,
+				tsrc->getTextureName(f.special_tiles[0].layers[0].texture_id), "");
+			// Add color
+			const TileLayer &l0 = f.special_tiles[0].layers[0];
+			result->buffer_colors.emplace_back(l0.has_color, l0.color);
+			break;
+		}
+		default:
+			// Render non-trivial drawtypes like the actual node
+			mesh = createSpecialNodeMesh(client, id, &result->buffer_colors, f);
+			scaleMesh(mesh, v3f(0.12, 0.12, 0.12));
+			break;
 		}
 
 		u32 mc = mesh->getMeshBufferCount();
@@ -593,7 +600,7 @@ void getItemMesh(Client *client, const ItemStack &item, ItemMesh *result)
 			material.MaterialTypeParam = 0.5f;
 			material.setFlag(video::EMF_BILINEAR_FILTER, false);
 			material.setFlag(video::EMF_TRILINEAR_FILTER, false);
-			material.setFlag(video::EMF_BACK_FACE_CULLING, true);
+			material.setFlag(video::EMF_BACK_FACE_CULLING, cull_backface);
 			material.setFlag(video::EMF_LIGHTING, false);
 		}
 
diff --git a/src/clientiface.cpp b/src/clientiface.cpp
index 602a44c90..01852c5d1 100644
--- a/src/clientiface.cpp
+++ b/src/clientiface.cpp
@@ -80,10 +80,11 @@ LuaEntitySAO *getAttachedObject(PlayerSAO *sao, ServerEnvironment *env)
 	int id;
 	std::string bone;
 	v3f dummy;
-	sao->getAttachment(&id, &bone, &dummy, &dummy);
+	bool force_visible;
+	sao->getAttachment(&id, &bone, &dummy, &dummy, &force_visible);
 	ServerActiveObject *ao = env->getActiveObject(id);
 	while (id && ao) {
-		ao->getAttachment(&id, &bone, &dummy, &dummy);
+		ao->getAttachment(&id, &bone, &dummy, &dummy, &force_visible);
 		if (id)
 			ao = env->getActiveObject(id);
 	}
@@ -98,7 +99,6 @@ void RemoteClient::GetNextBlocks (
 {
 	// Increment timers
 	m_nothing_to_send_pause_timer -= dtime;
-	m_nearest_unsent_reset_timer += dtime;
 
 	if (m_nothing_to_send_pause_timer >= 0)
 		return;
@@ -138,34 +138,6 @@ void RemoteClient::GetNextBlocks (
 	camera_dir.rotateYZBy(sao->getLookPitch());
 	camera_dir.rotateXZBy(sao->getRotation().Y);
 
-	/*infostream<<"camera_dir=("<<camera_dir.X<<","<<camera_dir.Y<<","
-			<<camera_dir.Z<<")"<<std::endl;*/
-
-	/*
-		Get the starting value of the block finder radius.
-	*/
-
-	if (m_last_center != center) {
-		m_nearest_unsent_d = 0;
-		m_last_center = center;
-	}
-
-	/*infostream<<"m_nearest_unsent_reset_timer="
-			<<m_nearest_unsent_reset_timer<<std::endl;*/
-
-	// Reset periodically to workaround for some bugs or stuff
-	if (m_nearest_unsent_reset_timer > 20.0f) {
-		m_nearest_unsent_reset_timer = 0.0f;
-		m_nearest_unsent_d = 0;
-		//infostream<<"Resetting m_nearest_unsent_d for "
-		//		<<server->getPlayerName(peer_id)<<std::endl;
-	}
-
-	//s16 last_nearest_unsent_d = m_nearest_unsent_d;
-	s16 d_start = m_nearest_unsent_d;
-
-	//infostream<<"d_start="<<d_start<<std::endl;
-
 	u16 max_simul_sends_usually = m_max_simul_sends;
 
 	/*
@@ -197,6 +169,29 @@ void RemoteClient::GetNextBlocks (
 	s16 wanted_range = sao->getWantedRange() + 1;
 	float camera_fov = sao->getFov();
 
+	/*
+		Get the starting value of the block finder radius.
+	*/
+	if (m_last_center != center) {
+		m_nearest_unsent_d = 0;
+		m_last_center = center;
+	}
+	// reset the unsent distance if the view angle has changed more that 10% of the fov
+	// (this matches isBlockInSight which allows for an extra 10%)
+	if (camera_dir.dotProduct(m_last_camera_dir) < std::cos(camera_fov * 0.1f)) {
+		m_nearest_unsent_d = 0;
+		m_last_camera_dir = camera_dir;
+	}
+	if (m_nearest_unsent_d > 0) {
+		// make sure any blocks modified since the last time we sent blocks are resent
+		for (const v3s16 &p : m_blocks_modified) {
+			m_nearest_unsent_d = std::min(m_nearest_unsent_d, center.getDistanceFrom(p));
+		}
+	}
+	m_blocks_modified.clear();
+
+	s16 d_start = m_nearest_unsent_d;
+
 	// Distrust client-sent FOV and get server-set player object property
 	// zoom FOV (degrees) as a check to avoid hacked clients using FOV to load
 	// distant world.
@@ -211,13 +206,13 @@ void RemoteClient::GetNextBlocks (
 		wanted_range);
 	const s16 d_blocks_in_sight = full_d_max * BS * MAP_BLOCKSIZE;
 
-	s16 d_max = full_d_max;
 	s16 d_max_gen = std::min(adjustDist(m_max_gen_distance, prop_zoom_fov),
 		wanted_range);
 
-	// Don't loop very much at a time, adjust with distance,
-	// do more work per RTT with greater distances.
-	s16 max_d_increment_at_time = full_d_max / 9 + 1;
+	s16 d_max = full_d_max;
+
+	// Don't loop very much at a time
+	s16 max_d_increment_at_time = 2;
 	if (d_max > d_start + max_d_increment_at_time)
 		d_max = d_start + max_d_increment_at_time;
 
@@ -310,20 +305,14 @@ void RemoteClient::GetNextBlocks (
 			*/
 			MapBlock *block = env->getMap().getBlockNoCreateNoEx(p);
 
-			bool surely_not_found_on_disk = false;
-			bool block_is_invalid = false;
+			bool block_not_found = false;
 			if (block) {
 				// Reset usage timer, this block will be of use in the future.
 				block->resetUsageTimer();
 
-				// Block is dummy if data doesn't exist.
-				// It means it has been not found from disk and not generated
-				if (block->isDummy()) {
-					surely_not_found_on_disk = true;
-				}
-
-				if (!block->isGenerated())
-					block_is_invalid = true;
+				// Check whether the block exists (with data)
+				if (block->isDummy() || !block->isGenerated())
+					block_not_found = true;
 
 				/*
 					If block is not close, don't send it unless it is near
@@ -337,7 +326,7 @@ void RemoteClient::GetNextBlocks (
 						continue;
 				}
 
-				if (m_occ_cull && !block_is_invalid &&
+				if (m_occ_cull && !block_not_found &&
 						env->getMap().isBlockOccluded(block, cam_pos_nodes)) {
 					continue;
 				}
@@ -347,7 +336,7 @@ void RemoteClient::GetNextBlocks (
 				If block has been marked to not exist on disk (dummy) or is
 				not generated and generating new ones is not wanted, skip block.
 			*/
-			if (!generate && (surely_not_found_on_disk || block_is_invalid)) {
+			if (!generate && block_not_found) {
 				// get next one.
 				continue;
 			}
@@ -355,7 +344,7 @@ void RemoteClient::GetNextBlocks (
 			/*
 				Add inexistent block to emerge queue.
 			*/
-			if (block == NULL || surely_not_found_on_disk || block_is_invalid) {
+			if (block == NULL || block_not_found) {
 				if (emerge->enqueueBlockEmerge(peer_id, p, generate)) {
 					if (nearest_emerged_d == -1)
 						nearest_emerged_d = d;
@@ -408,21 +397,18 @@ queue_full_break:
 
 void RemoteClient::GotBlock(v3s16 p)
 {
-	if (m_blocks_modified.find(p) == m_blocks_modified.end()) {
-		if (m_blocks_sending.find(p) != m_blocks_sending.end())
-			m_blocks_sending.erase(p);
-		else
-			m_excess_gotblocks++;
-
+	if (m_blocks_sending.find(p) != m_blocks_sending.end()) {
+		m_blocks_sending.erase(p);
+		// only add to sent blocks if it actually was sending
+		// (it might have been modified since)
 		m_blocks_sent.insert(p);
+	} else {
+		m_excess_gotblocks++;
 	}
 }
 
 void RemoteClient::SentBlock(v3s16 p)
 {
-	if (m_blocks_modified.find(p) != m_blocks_modified.end())
-		m_blocks_modified.erase(p);
-
 	if (m_blocks_sending.find(p) == m_blocks_sending.end())
 		m_blocks_sending[p] = 0.0f;
 	else
@@ -432,29 +418,24 @@ void RemoteClient::SentBlock(v3s16 p)
 
 void RemoteClient::SetBlockNotSent(v3s16 p)
 {
-	m_nearest_unsent_d = 0;
 	m_nothing_to_send_pause_timer = 0;
 
-	if (m_blocks_sending.find(p) != m_blocks_sending.end())
-		m_blocks_sending.erase(p);
-	if (m_blocks_sent.find(p) != m_blocks_sent.end())
-		m_blocks_sent.erase(p);
-	m_blocks_modified.insert(p);
+	// remove the block from sending and sent sets,
+	// and mark as modified if found
+	if (m_blocks_sending.erase(p) + m_blocks_sent.erase(p) > 0)
+		m_blocks_modified.insert(p);
 }
 
 void RemoteClient::SetBlocksNotSent(std::map<v3s16, MapBlock*> &blocks)
 {
-	m_nearest_unsent_d = 0;
 	m_nothing_to_send_pause_timer = 0;
 
 	for (auto &block : blocks) {
 		v3s16 p = block.first;
-		m_blocks_modified.insert(p);
-
-		if (m_blocks_sending.find(p) != m_blocks_sending.end())
-			m_blocks_sending.erase(p);
-		if (m_blocks_sent.find(p) != m_blocks_sent.end())
-			m_blocks_sent.erase(p);
+		// remove the block from sending and sent sets,
+		// and mark as modified if found
+		if (m_blocks_sending.erase(p) + m_blocks_sent.erase(p) > 0)
+			m_blocks_modified.insert(p);
 	}
 }
 
diff --git a/src/clientiface.h b/src/clientiface.h
index 83fa6fe99..eabffb0b6 100644
--- a/src/clientiface.h
+++ b/src/clientiface.h
@@ -364,7 +364,7 @@ private:
 	std::set<v3s16> m_blocks_sent;
 	s16 m_nearest_unsent_d = 0;
 	v3s16 m_last_center;
-	float m_nearest_unsent_reset_timer = 0.0f;
+	v3f m_last_camera_dir;
 
 	const u16 m_max_simul_sends;
 	const float m_min_time_from_building;
@@ -384,10 +384,10 @@ private:
 	std::map<v3s16, float> m_blocks_sending;
 
 	/*
-		Blocks that have been modified since last sending them.
-		These blocks will not be marked as sent, even if the
-		client reports it has received them to account for blocks
-		that are being modified while on the line.
+		Blocks that have been modified since blocks were
+		sent to the client last (getNextBlocks()).
+		This is used to reset the unsent distance, so that
+		modified blocks are resent to the client.
 
 		List of block positions.
 	*/
diff --git a/src/content/CMakeLists.txt b/src/content/CMakeLists.txt
index 5adcf6b1e..6dd049418 100644
--- a/src/content/CMakeLists.txt
+++ b/src/content/CMakeLists.txt
@@ -1,6 +1,5 @@
 set(content_SRCS
 	${CMAKE_CURRENT_SOURCE_DIR}/content.cpp
-	${CMAKE_CURRENT_SOURCE_DIR}/packages.cpp
 	${CMAKE_CURRENT_SOURCE_DIR}/mods.cpp
 	${CMAKE_CURRENT_SOURCE_DIR}/subgames.cpp
 	PARENT_SCOPE
diff --git a/src/content/packages.cpp b/src/content/packages.cpp
deleted file mode 100644
index 2d488eb76..000000000
--- a/src/content/packages.cpp
+++ /dev/null
@@ -1,69 +0,0 @@
-/*
-Minetest
-Copyright (C) 2018 rubenwardy <rw@rubenwardy.com>
-
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU Lesser General Public License as published by
-the Free Software Foundation; either version 2.1 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU Lesser General Public License for more details.
-
-You should have received a copy of the GNU Lesser General Public License along
-with this program; if not, write to the Free Software Foundation, Inc.,
-51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-*/
-
-#include "content/packages.h"
-#include "log.h"
-#include "filesys.h"
-#include "porting.h"
-#include "settings.h"
-#include "content/mods.h"
-#include "content/subgames.h"
-
-std::string Package::getDownloadURL(const std::string &baseURL) const
-{
-	return baseURL + "/packages/" + author + "/" + name + "/releases/" +
-	       std::to_string(release) + "/download/";
-}
-
-#if USE_CURL
-std::vector<Package> getPackagesFromURL(const std::string &url)
-{
-	std::vector<std::string> extra_headers;
-	extra_headers.emplace_back("Accept: application/json");
-
-	Json::Value json = fetchJsonValue(url, &extra_headers);
-	if (!json.isArray()) {
-		errorstream << "Invalid JSON download " << std::endl;
-		return std::vector<Package>();
-	}
-
-	std::vector<Package> packages;
-
-	// Note: `unsigned int` is required to index JSON
-	for (unsigned int i = 0; i < json.size(); ++i) {
-		Package package;
-
-		package.author = json[i]["author"].asString();
-		package.name = json[i]["name"].asString();
-		package.title = json[i]["title"].asString();
-		package.type = json[i]["type"].asString();
-		package.shortDesc = json[i]["shortDesc"].asString();
-		package.release = json[i]["release"].asInt();
-		if (json[i].isMember("thumbnail"))
-			package.thumbnail = json[i]["thumbnail"].asString();
-
-		if (package.valid())
-			packages.push_back(package);
-		else
-			errorstream << "Invalid package at " << i << std::endl;
-	}
-
-	return packages;
-}
-#endif
diff --git a/src/content/packages.h b/src/content/packages.h
deleted file mode 100644
index 9029475ef..000000000
--- a/src/content/packages.h
+++ /dev/null
@@ -1,52 +0,0 @@
-/*
-Minetest
-Copyright (C) 2018 rubenwardy <rw@rubenwardy.com>
-
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU Lesser General Public License as published by
-the Free Software Foundation; either version 2.1 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU Lesser General Public License for more details.
-
-You should have received a copy of the GNU Lesser General Public License along
-with this program; if not, write to the Free Software Foundation, Inc.,
-51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-*/
-
-#pragma once
-#include "config.h"
-#include "convert_json.h"
-#include "irrlichttypes.h"
-
-struct Package
-{
-	std::string author;
-	std::string name; // Technical name
-	std::string title;
-	std::string type; // One of "mod", "game", or "txp"
-
-	std::string shortDesc;
-	u32 release;
-	std::string thumbnail;
-
-	bool valid() const
-	{
-		return !(author.empty() || name.empty() || title.empty() ||
-				type.empty() || release <= 0);
-	}
-
-	std::string getDownloadURL(const std::string &baseURL) const;
-};
-
-#if USE_CURL
-std::vector<Package> getPackagesFromURL(const std::string &url);
-#else
-inline std::vector<Package> getPackagesFromURL(const std::string &url)
-{
-	return std::vector<Package>();
-}
-#endif
diff --git a/src/content/subgames.cpp b/src/content/subgames.cpp
index 170f54e20..c6350f2dd 100644
--- a/src/content/subgames.cpp
+++ b/src/content/subgames.cpp
@@ -31,12 +31,20 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "client/tile.h" // getImagePath
 #endif
 
+// The maximum number of identical world names allowed
+#define MAX_WORLD_NAMES 100
+
+namespace
+{
+
 bool getGameMinetestConfig(const std::string &game_path, Settings &conf)
 {
 	std::string conf_path = game_path + DIR_DELIM + "minetest.conf";
 	return conf.readConfigFile(conf_path.c_str());
 }
 
+}
+
 struct GameFindPath
 {
 	std::string path;
@@ -213,6 +221,21 @@ bool getWorldExists(const std::string &world_path)
 			fs::PathExists(world_path + DIR_DELIM + "world.mt"));
 }
 
+//! Try to get the displayed name of a world
+std::string getWorldName(const std::string &world_path, const std::string &default_name)
+{
+	std::string conf_path = world_path + DIR_DELIM + "world.mt";
+	Settings conf;
+	bool succeeded = conf.readConfigFile(conf_path.c_str());
+	if (!succeeded) {
+		return default_name;
+	}
+
+	if (!conf.exists("world_name"))
+		return default_name;
+	return conf.get("world_name");
+}
+
 std::string getWorldGameId(const std::string &world_path, bool can_be_legacy)
 {
 	std::string conf_path = world_path + DIR_DELIM + "world.mt";
@@ -259,7 +282,7 @@ std::vector<WorldSpec> getAvailableWorlds()
 			if (!dln.dir)
 				continue;
 			std::string fullpath = worldspath + DIR_DELIM + dln.name;
-			std::string name = dln.name;
+			std::string name = getWorldName(fullpath, dln.name);
 			// Just allow filling in the gameid always for now
 			bool can_be_legacy = true;
 			std::string gameid = getWorldGameId(fullpath, can_be_legacy);
@@ -288,27 +311,47 @@ std::vector<WorldSpec> getAvailableWorlds()
 	return worlds;
 }
 
-bool loadGameConfAndInitWorld(const std::string &path, const SubgameSpec &gamespec)
+void loadGameConfAndInitWorld(const std::string &path, const std::string &name,
+		const SubgameSpec &gamespec, bool create_world)
 {
+	std::string final_path = path;
+
+	// If we're creating a new world, ensure that the path isn't already taken
+	if (create_world) {
+		int counter = 1;
+		while (fs::PathExists(final_path) && counter < MAX_WORLD_NAMES) {
+			final_path = path + "_" + std::to_string(counter);
+			counter++;
+		}
+
+		if (fs::PathExists(final_path)) {
+			throw BaseException("Too many similar filenames");
+		}
+	}
+
 	// Override defaults with those provided by the game.
 	// We clear and reload the defaults because the defaults
 	// might have been overridden by other subgame config
 	// files that were loaded before.
 	g_settings->clearDefaults();
 	set_default_settings(g_settings);
+
 	Settings game_defaults;
 	getGameMinetestConfig(gamespec.path, game_defaults);
+	game_defaults.removeSecureSettings();
+
 	g_settings->overrideDefaults(&game_defaults);
 
-	infostream << "Initializing world at " << path << std::endl;
+	infostream << "Initializing world at " << final_path << std::endl;
 
-	fs::CreateAllDirs(path);
+	fs::CreateAllDirs(final_path);
 
 	// Create world.mt if does not already exist
-	std::string worldmt_path = path + DIR_DELIM "world.mt";
+	std::string worldmt_path = final_path + DIR_DELIM "world.mt";
 	if (!fs::PathExists(worldmt_path)) {
 		Settings conf;
 
+		conf.set("world_name", name);
 		conf.set("gameid", gamespec.id);
 		conf.set("backend", "sqlite3");
 		conf.set("player_backend", "sqlite3");
@@ -316,16 +359,16 @@ bool loadGameConfAndInitWorld(const std::string &path, const SubgameSpec &gamesp
 		conf.setBool("creative_mode", g_settings->getBool("creative_mode"));
 		conf.setBool("enable_damage", g_settings->getBool("enable_damage"));
 
-		if (!conf.updateConfigFile(worldmt_path.c_str()))
-			return false;
+		if (!conf.updateConfigFile(worldmt_path.c_str())) {
+			throw BaseException("Failed to update the config file");
+		}
 	}
 
 	// Create map_meta.txt if does not already exist
-	std::string map_meta_path = path + DIR_DELIM + "map_meta.txt";
+	std::string map_meta_path = final_path + DIR_DELIM + "map_meta.txt";
 	if (!fs::PathExists(map_meta_path)) {
 		verbosestream << "Creating map_meta.txt (" << map_meta_path << ")"
 			      << std::endl;
-		fs::CreateAllDirs(path);
 		std::ostringstream oss(std::ios_base::binary);
 
 		Settings conf;
@@ -338,5 +381,4 @@ bool loadGameConfAndInitWorld(const std::string &path, const SubgameSpec &gamesp
 
 		fs::safeWriteToFile(map_meta_path, oss.str());
 	}
-	return true;
 }
diff --git a/src/content/subgames.h b/src/content/subgames.h
index 4198ea860..60392639b 100644
--- a/src/content/subgames.h
+++ b/src/content/subgames.h
@@ -53,9 +53,6 @@ struct SubgameSpec
 	bool isValid() const { return (!id.empty() && !path.empty()); }
 };
 
-// minetest.conf
-bool getGameMinetestConfig(const std::string &game_path, Settings &conf);
-
 SubgameSpec findSubgame(const std::string &id);
 SubgameSpec findWorldSubgame(const std::string &world_path);
 
@@ -63,6 +60,8 @@ std::set<std::string> getAvailableGameIds();
 std::vector<SubgameSpec> getAvailableGames();
 
 bool getWorldExists(const std::string &world_path);
+//! Try to get the displayed name of a world
+std::string getWorldName(const std::string &world_path, const std::string &default_name);
 std::string getWorldGameId(const std::string &world_path, bool can_be_legacy = false);
 
 struct WorldSpec
@@ -88,4 +87,5 @@ std::vector<WorldSpec> getAvailableWorlds();
 
 // loads the subgame's config and creates world directory
 // and world.mt if they don't exist
-bool loadGameConfAndInitWorld(const std::string &path, const SubgameSpec &gamespec);
+void loadGameConfAndInitWorld(const std::string &path, const std::string &name,
+		const SubgameSpec &gamespec, bool create_world);
diff --git a/src/content_nodemeta.cpp b/src/content_nodemeta.cpp
index fc2859d27..39743c11f 100644
--- a/src/content_nodemeta.cpp
+++ b/src/content_nodemeta.cpp
@@ -43,26 +43,26 @@ static bool content_nodemeta_deserialize_legacy_body(
 	if(id == NODEMETA_GENERIC) // GenericNodeMetadata (0.4-dev)
 	{
 		meta->getInventory()->deSerialize(is);
-		deSerializeLongString(is);  // m_text
-		deSerializeString(is);  // m_owner
+		deSerializeString32(is);  // m_text
+		deSerializeString16(is);  // m_owner
 
-		meta->setString("infotext",deSerializeString(is));
-		meta->setString("formspec",deSerializeString(is));
+		meta->setString("infotext",deSerializeString16(is));
+		meta->setString("formspec",deSerializeString16(is));
 		readU8(is);  // m_allow_text_input
 		readU8(is);  // m_allow_removal
 		readU8(is);  // m_enforce_owner
 
 		int num_vars = readU32(is);
 		for(int i=0; i<num_vars; i++){
-			std::string name = deSerializeString(is);
-			std::string var = deSerializeLongString(is);
+			std::string name = deSerializeString16(is);
+			std::string var = deSerializeString32(is);
 			meta->setString(name, var);
 		}
 		return false;
 	}
 	else if(id == NODEMETA_SIGN) // SignNodeMetadata
 	{
-		meta->setString("text", deSerializeString(is));
+		meta->setString("text", deSerializeString16(is));
 		//meta->setString("infotext","\"${text}\"");
 		meta->setString("infotext",
 				std::string("\"") + meta->getString("text") + "\"");
@@ -87,7 +87,7 @@ static bool content_nodemeta_deserialize_legacy_body(
 	}
 	else if(id == NODEMETA_LOCKABLE_CHEST) // LockingChestNodeMetadata
 	{
-		meta->setString("owner", deSerializeString(is));
+		meta->setString("owner", deSerializeString16(is));
 		meta->getInventory()->deSerialize(is);
 
 		// Rename inventory list "0" to "main"
@@ -138,7 +138,7 @@ static bool content_nodemeta_deserialize_legacy_meta(
 	s16 id = readS16(is);
 
 	// Read data
-	std::string data = deSerializeString(is);
+	std::string data = deSerializeString16(is);
 	std::istringstream tmp_is(data, std::ios::binary);
 	return content_nodemeta_deserialize_legacy_body(tmp_is, id, meta);
 }
diff --git a/src/database/database-dummy.cpp b/src/database/database-dummy.cpp
index a3d8cd579..b56f341c5 100644
--- a/src/database/database-dummy.cpp
+++ b/src/database/database-dummy.cpp
@@ -22,6 +22,7 @@ Dummy database class
 */
 
 #include "database-dummy.h"
+#include "remoteplayer.h"
 
 
 bool Database_Dummy::saveBlock(const v3s16 &pos, const std::string &data)
@@ -57,3 +58,25 @@ void Database_Dummy::listAllLoadableBlocks(std::vector<v3s16> &dst)
 	}
 }
 
+void Database_Dummy::savePlayer(RemotePlayer *player)
+{
+	m_player_database.insert(player->getName());
+}
+
+bool Database_Dummy::loadPlayer(RemotePlayer *player, PlayerSAO *sao)
+{
+	return m_player_database.find(player->getName()) != m_player_database.end();
+}
+
+bool Database_Dummy::removePlayer(const std::string &name)
+{
+	m_player_database.erase(name);
+	return true;
+}
+
+void Database_Dummy::listPlayers(std::vector<std::string> &res)
+{
+	for (const auto &player : m_player_database) {
+		res.emplace_back(player);
+	}
+}
diff --git a/src/database/database-dummy.h b/src/database/database-dummy.h
index 2d87d58f6..b69919f84 100644
--- a/src/database/database-dummy.h
+++ b/src/database/database-dummy.h
@@ -32,14 +32,15 @@ public:
 	bool deleteBlock(const v3s16 &pos);
 	void listAllLoadableBlocks(std::vector<v3s16> &dst);
 
-	void savePlayer(RemotePlayer *player) {}
-	bool loadPlayer(RemotePlayer *player, PlayerSAO *sao) { return true; }
-	bool removePlayer(const std::string &name) { return true; }
-	void listPlayers(std::vector<std::string> &res) {}
+	void savePlayer(RemotePlayer *player);
+	bool loadPlayer(RemotePlayer *player, PlayerSAO *sao);
+	bool removePlayer(const std::string &name);
+	void listPlayers(std::vector<std::string> &res);
 
 	void beginSave() {}
 	void endSave() {}
 
 private:
 	std::map<s64, std::string> m_database;
+	std::set<std::string> m_player_database;
 };
diff --git a/src/database/database-leveldb.cpp b/src/database/database-leveldb.cpp
index 1976ae13d..73cd63f6d 100644
--- a/src/database/database-leveldb.cpp
+++ b/src/database/database-leveldb.cpp
@@ -145,8 +145,8 @@ void PlayerDatabaseLevelDB::savePlayer(RemotePlayer *player)
 	StringMap stringvars = sao->getMeta().getStrings();
 	writeU32(os, stringvars.size());
 	for (const auto &it : stringvars) {
-		os << serializeString(it.first);
-		os << serializeLongString(it.second);
+		os << serializeString16(it.first);
+		os << serializeString32(it.second);
 	}
 
 	player->inventory.serialize(os);
@@ -183,8 +183,8 @@ bool PlayerDatabaseLevelDB::loadPlayer(RemotePlayer *player, PlayerSAO *sao)
 
 	u32 attribute_count = readU32(is);
 	for (u32 i = 0; i < attribute_count; i++) {
-		std::string name = deSerializeString(is);
-		std::string value = deSerializeLongString(is);
+		std::string name = deSerializeString16(is);
+		std::string value = deSerializeString32(is);
 		sao->getMeta().setString(name, value);
 	}
 	sao->getMeta().setModified(false);
@@ -247,13 +247,13 @@ bool AuthDatabaseLevelDB::getAuth(const std::string &name, AuthEntry &res)
 
 	res.id = 1;
 	res.name = name;
-	res.password = deSerializeString(is);
+	res.password = deSerializeString16(is);
 
 	u16 privilege_count = readU16(is);
 	res.privileges.clear();
 	res.privileges.reserve(privilege_count);
 	for (u16 i = 0; i < privilege_count; i++) {
-		res.privileges.push_back(deSerializeString(is));
+		res.privileges.push_back(deSerializeString16(is));
 	}
 
 	res.last_login = readS64(is);
@@ -264,14 +264,14 @@ bool AuthDatabaseLevelDB::saveAuth(const AuthEntry &authEntry)
 {
 	std::ostringstream os;
 	writeU8(os, 1);
-	os << serializeString(authEntry.password);
+	os << serializeString16(authEntry.password);
 
 	size_t privilege_count = authEntry.privileges.size();
 	FATAL_ERROR_IF(privilege_count > U16_MAX,
 		"Unsupported number of privileges");
 	writeU16(os, privilege_count);
 	for (const std::string &privilege : authEntry.privileges) {
-		os << serializeString(privilege);
+		os << serializeString16(privilege);
 	}
 
 	writeS64(os, authEntry.last_login);
diff --git a/src/defaultsettings.cpp b/src/defaultsettings.cpp
index bfcee01f8..8050b533c 100644
--- a/src/defaultsettings.cpp
+++ b/src/defaultsettings.cpp
@@ -42,7 +42,7 @@ void set_default_settings(Settings *settings)
 	settings->setDefault("mute_sound", "false");
 	settings->setDefault("enable_mesh_cache", "false");
 	settings->setDefault("mesh_generation_interval", "0");
-	settings->setDefault("meshgen_block_cache_size", "20");
+	settings->setDefault("meshgen_block_cache_size", "40");
 	settings->setDefault("enable_vbo", "true");
 	settings->setDefault("free_move", "false");
 	settings->setDefault("pitch_move", "false");
@@ -52,7 +52,7 @@ void set_default_settings(Settings *settings)
 	settings->setDefault("screenshot_format", "png");
 	settings->setDefault("screenshot_quality", "0");
 	settings->setDefault("client_unload_unused_data_timeout", "600");
-	settings->setDefault("client_mapblock_limit", "5000");
+	settings->setDefault("client_mapblock_limit", "7500");
 	settings->setDefault("enable_build_where_you_stand", "true");
 	settings->setDefault("curl_timeout", "5000");
 	settings->setDefault("curl_parallel_limit", "8");
@@ -155,6 +155,8 @@ void set_default_settings(Settings *settings)
 	settings->setDefault("keymap_right", "KEY_KEY_D");
 	settings->setDefault("keymap_jump", "KEY_SPACE");
 	settings->setDefault("keymap_sneak", "KEY_LSHIFT");
+	settings->setDefault("keymap_dig", "KEY_LBUTTON");
+	settings->setDefault("keymap_place", "KEY_RBUTTON");
 	settings->setDefault("keymap_drop", "KEY_KEY_Q");
 	settings->setDefault("keymap_zoom", "KEY_KEY_Z");
 	settings->setDefault("keymap_inventory", "KEY_KEY_I");
@@ -256,8 +258,8 @@ void set_default_settings(Settings *settings)
 	settings->setDefault("tooltip_show_delay", "400");
 	settings->setDefault("tooltip_append_itemname", "false");
 	settings->setDefault("fps_max", "60");
-	settings->setDefault("pause_fps_max", "20");
-	settings->setDefault("viewing_range", "100");
+	settings->setDefault("fps_max_unfocused", "20");
+	settings->setDefault("viewing_range", "190");
 #if ENABLE_GLES
 	settings->setDefault("near_plane", "0.1");
 #endif
@@ -321,7 +323,7 @@ void set_default_settings(Settings *settings)
 	settings->setDefault("show_entity_selectionbox", "false");
 	settings->setDefault("texture_clean_transparent", "false");
 	settings->setDefault("texture_min_size", "64");
-	settings->setDefault("ambient_occlusion_gamma", "2.2");
+	settings->setDefault("ambient_occlusion_gamma", "1.8");
 #if ENABLE_GLES
 	settings->setDefault("enable_shaders", "false");
 #else
@@ -342,15 +344,6 @@ void set_default_settings(Settings *settings)
 	settings->setDefault("bilinear_filter", "false");
 	settings->setDefault("trilinear_filter", "false");
 	settings->setDefault("tone_mapping", "false");
-	settings->setDefault("enable_bumpmapping", "false");
-	settings->setDefault("enable_parallax_occlusion", "false");
-	settings->setDefault("generate_normalmaps", "false");
-	settings->setDefault("normalmaps_strength", "0.6");
-	settings->setDefault("normalmaps_smooth", "1");
-	settings->setDefault("parallax_occlusion_mode", "1");
-	settings->setDefault("parallax_occlusion_iterations", "4");
-	settings->setDefault("parallax_occlusion_scale", "0.08");
-	settings->setDefault("parallax_occlusion_bias", "0.04");
 	settings->setDefault("enable_waving_water", "false");
 	settings->setDefault("water_wave_height", "1.0");
 	settings->setDefault("water_wave_length", "20.0");
@@ -362,7 +355,7 @@ void set_default_settings(Settings *settings)
 	// Input
 	settings->setDefault("invert_mouse", "false");
 	settings->setDefault("mouse_sensitivity", "0.2");
-	settings->setDefault("repeat_rightclick_time", "0.25");
+	settings->setDefault("repeat_place_time", "0.25");
 	settings->setDefault("safe_dig_and_place", "false");
 	settings->setDefault("random_input", "false");
 	settings->setDefault("aux1_descends", "false");
@@ -381,7 +374,6 @@ void set_default_settings(Settings *settings)
 	settings->setDefault("joystick_frustum_sensitivity", "170");
 
 	// Main menu
-	settings->setDefault("main_menu_style", "full");
 	settings->setDefault("main_menu_path", "");
 	settings->setDefault("serverlist_file", "favoriteservers.txt");
 
@@ -421,6 +413,8 @@ void set_default_settings(Settings *settings)
 
 	// ContentDB
 	settings->setDefault("contentdb_url", "https://content.minetest.net");
+	settings->setDefault("contentdb_max_concurrent_downloads", "3");
+
 #ifdef __ANDROID__
 	settings->setDefault("contentdb_flag_blacklist", "nonfree, android_default");
 #else
@@ -442,7 +436,7 @@ void set_default_settings(Settings *settings)
 	settings->setDefault("port", "30000");
 	settings->setDefault("strict_protocol_version_checking", "false");
 	settings->setDefault("player_transfer_distance", "0");
-	settings->setDefault("max_simultaneous_block_sends_per_client", "40");
+	settings->setDefault("max_simultaneous_block_sends_per_client", "128");
 	settings->setDefault("time_send_interval", "5");
 
 	settings->setDefault("default_game", "mineclone2");
@@ -457,11 +451,7 @@ void set_default_settings(Settings *settings)
 	settings->setDefault("disallow_empty_password", "false");
 	settings->setDefault("disable_anticheat", "false");
 	settings->setDefault("enable_rollback_recording", "false");
-#ifdef NDEBUG
-	settings->setDefault("deprecated_lua_api_handling", "legacy");
-#else
 	settings->setDefault("deprecated_lua_api_handling", "log");
-#endif
 
 	settings->setDefault("kick_msg_shutdown", "Server shutting down.");
 	settings->setDefault("kick_msg_crash", "This server has experienced an internal error. You will now be disconnected.");
@@ -469,11 +459,11 @@ void set_default_settings(Settings *settings)
 
 	settings->setDefault("chat_message_format", "<@name> @message");
 	settings->setDefault("profiler_print_interval", "0");
-	settings->setDefault("active_object_send_range_blocks", "4");
-	settings->setDefault("active_block_range", "3");
+	settings->setDefault("active_object_send_range_blocks", "8");
+	settings->setDefault("active_block_range", "4");
 	//settings->setDefault("max_simultaneous_block_sends_per_client", "1");
 	// This causes frametime jitter on client side, or does it?
-	settings->setDefault("max_block_send_distance", "10");
+	settings->setDefault("max_block_send_distance", "12");
 	settings->setDefault("block_send_optimize_distance", "4");
 	settings->setDefault("server_side_occlusion_culling", "true");
 	settings->setDefault("csm_restriction_flags", "62");
@@ -492,15 +482,16 @@ void set_default_settings(Settings *settings)
 	settings->setDefault("dedicated_server_step", "0.09");
 	settings->setDefault("active_block_mgmt_interval", "2.0");
 	settings->setDefault("abm_interval", "1.0");
+	settings->setDefault("abm_time_budget", "0.2");
 	settings->setDefault("nodetimer_interval", "0.2");
 	settings->setDefault("ignore_world_load_errors", "false");
 	settings->setDefault("remote_media", "");
 	settings->setDefault("debug_log_level", "action");
 	settings->setDefault("debug_log_size_max", "50");
 	settings->setDefault("chat_log_level", "error");
-	settings->setDefault("emergequeue_limit_total", "512");
-	settings->setDefault("emergequeue_limit_diskonly", "64");
-	settings->setDefault("emergequeue_limit_generate", "64");
+	settings->setDefault("emergequeue_limit_total", "1024");
+	settings->setDefault("emergequeue_limit_diskonly", "128");
+	settings->setDefault("emergequeue_limit_generate", "128");
 	settings->setDefault("num_emerge_threads", "1");
 	settings->setDefault("secure.enable_security", "true");
 	settings->setDefault("secure.trusted_mods", "");
@@ -531,7 +522,7 @@ void set_default_settings(Settings *settings)
 	settings->setDefault("mapgen_limit", "31000");
 	settings->setDefault("chunksize", "5");
 	settings->setDefault("fixed_map_seed", "");
-	settings->setDefault("max_block_generate_distance", "8");
+	settings->setDefault("max_block_generate_distance", "10");
 	settings->setDefault("enable_mapgen_debug_info", "false");
 	Mapgen::setDefaultSettings(settings);
 
@@ -569,7 +560,7 @@ void set_default_settings(Settings *settings)
 	settings->setDefault("max_block_generate_distance", "5");
 	settings->setDefault("enable_3d_clouds", "false");
 	settings->setDefault("fps_max", "30");
-	settings->setDefault("pause_fps_max", "10");
+	settings->setDefault("fps_max_unfocused", "10");
 	settings->setDefault("max_objects_per_block", "20");
 	settings->setDefault("sqlite_synchronous", "1");
 	settings->setDefault("server_map_save_interval", "15");
diff --git a/src/emerge.cpp b/src/emerge.cpp
index 0ac26a682..12e407797 100644
--- a/src/emerge.cpp
+++ b/src/emerge.cpp
@@ -426,6 +426,10 @@ bool EmergeManager::pushBlockEmergeData(
 				m_qlimit_generate : m_qlimit_diskonly;
 			if (count_peer >= qlimit_peer)
 				return false;
+		} else {
+			// limit block enqueue requests for active blocks to 1/2 of total
+			if (count_peer * 2 >= m_qlimit_total)
+				return false;
 		}
 	}
 
diff --git a/src/emerge.h b/src/emerge.h
index 6f204666d..da845e243 100644
--- a/src/emerge.h
+++ b/src/emerge.h
@@ -52,7 +52,6 @@ struct BlockMakeData {
 	u64 seed = 0;
 	v3s16 blockpos_min;
 	v3s16 blockpos_max;
-	v3s16 blockpos_requested;
 	UniqueQueue<v3s16> transforming_liquid;
 	const NodeDefManager *nodedef = nullptr;
 
diff --git a/src/environment.cpp b/src/environment.cpp
index 7acad313e..f10f773cf 100644
--- a/src/environment.cpp
+++ b/src/environment.cpp
@@ -36,6 +36,7 @@ Environment::Environment(IGameDef *gamedef):
 	m_cache_active_block_mgmt_interval = g_settings->getFloat("active_block_mgmt_interval");
 	m_cache_abm_interval = g_settings->getFloat("abm_interval");
 	m_cache_nodetimer_interval = g_settings->getFloat("nodetimer_interval");
+	m_cache_abm_time_budget = g_settings->getFloat("abm_time_budget");
 
 	m_time_of_day = g_settings->getU32("world_start_time");
 	m_time_of_day_f = (float)m_time_of_day / 24000.0f;
diff --git a/src/environment.h b/src/environment.h
index 91c33ba15..b4884fdb3 100644
--- a/src/environment.h
+++ b/src/environment.h
@@ -147,6 +147,7 @@ protected:
 	float m_cache_active_block_mgmt_interval;
 	float m_cache_abm_interval;
 	float m_cache_nodetimer_interval;
+	float m_cache_abm_time_budget;
 
 	IGameDef *m_gamedef;
 
diff --git a/src/filesys.cpp b/src/filesys.cpp
index 0bc351669..2470b1b64 100644
--- a/src/filesys.cpp
+++ b/src/filesys.cpp
@@ -750,6 +750,21 @@ bool safeWriteToFile(const std::string &path, const std::string &content)
 	return true;
 }
 
+bool ReadFile(const std::string &path, std::string &out)
+{
+	std::ifstream is(path, std::ios::binary | std::ios::ate);
+	if (!is.good()) {
+		return false;
+	}
+
+	auto size = is.tellg();
+	out.resize(size);
+	is.seekg(0);
+	is.read(&out[0], size);
+
+	return true;
+}
+
 bool Rename(const std::string &from, const std::string &to)
 {
 	return rename(from.c_str(), to.c_str()) == 0;
diff --git a/src/filesys.h b/src/filesys.h
index 09f129aa3..b2c800c55 100644
--- a/src/filesys.h
+++ b/src/filesys.h
@@ -128,6 +128,8 @@ const char *GetFilenameFromPath(const char *path);
 
 bool safeWriteToFile(const std::string &path, const std::string &content);
 
+bool ReadFile(const std::string &path, std::string &out);
+
 bool Rename(const std::string &from, const std::string &to);
 
 } // namespace fs
diff --git a/src/gui/CMakeLists.txt b/src/gui/CMakeLists.txt
index 7befba37c..91476ada6 100644
--- a/src/gui/CMakeLists.txt
+++ b/src/gui/CMakeLists.txt
@@ -16,6 +16,7 @@ set(gui_SRCS
 	${CMAKE_CURRENT_SOURCE_DIR}/guiKeyChangeMenu.cpp
 	${CMAKE_CURRENT_SOURCE_DIR}/guiPasswordChange.cpp
 	${CMAKE_CURRENT_SOURCE_DIR}/guiPathSelectMenu.cpp
+	${CMAKE_CURRENT_SOURCE_DIR}/guiScene.cpp
 	${CMAKE_CURRENT_SOURCE_DIR}/guiScrollBar.cpp
 	${CMAKE_CURRENT_SOURCE_DIR}/guiScrollContainer.cpp
 	${CMAKE_CURRENT_SOURCE_DIR}/guiSkin.cpp
diff --git a/src/gui/StyleSpec.h b/src/gui/StyleSpec.h
index 67caf4f7b..f2844ce28 100644
--- a/src/gui/StyleSpec.h
+++ b/src/gui/StyleSpec.h
@@ -24,6 +24,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "util/string.h"
 #include <algorithm>
 #include <array>
+#include <vector>
 
 #pragma once
 
@@ -50,6 +51,10 @@ public:
 		PADDING,
 		FONT,
 		FONT_SIZE,
+		COLORS,
+		BORDERCOLORS,
+		BORDERWIDTHS,
+		SOUND,
 		NUM_PROPERTIES,
 		NONE
 	};
@@ -106,6 +111,14 @@ public:
 			return FONT;
 		} else if (name == "font_size") {
 			return FONT_SIZE;
+		} else if (name == "colors") {
+			return COLORS;
+		} else if (name == "bordercolors") {
+			return BORDERCOLORS;
+		} else if (name == "borderwidths") {
+			return BORDERWIDTHS;
+		} else if (name == "sound") {
+			return SOUND;
 		} else {
 			return NONE;
 		}
@@ -187,6 +200,42 @@ public:
 		return color;
 	}
 
+	std::array<video::SColor, 4> getColorArray(Property prop,
+		std::array<video::SColor, 4> def) const
+	{
+		const auto &val = properties[prop];
+		if (val.empty())
+			return def;
+
+		std::vector<std::string> strs;
+		if (!parseArray(val, strs))
+			return def;
+
+		for (size_t i = 0; i <= 3; i++) {
+			video::SColor color;
+			if (parseColorString(strs[i], color, false, 0xff))
+				def[i] = color;
+		}
+
+		return def;
+	}
+
+	std::array<s32, 4> getIntArray(Property prop, std::array<s32, 4> def) const
+	{
+		const auto &val = properties[prop];
+		if (val.empty())
+			return def;
+
+		std::vector<std::string> strs;
+		if (!parseArray(val, strs))
+			return def;
+
+		for (size_t i = 0; i <= 3; i++)
+			def[i] = stoi(strs[i]);
+
+		return def;
+	}
+
 	irr::core::rect<s32> getRect(Property prop, irr::core::rect<s32> def) const
 	{
 		const auto &val = properties[prop];
@@ -334,6 +383,24 @@ public:
 	}
 
 private:
+	bool parseArray(const std::string &value, std::vector<std::string> &arr) const
+	{
+		std::vector<std::string> strs = split(value, ',');
+
+		if (strs.size() == 1) {
+			arr = {strs[0], strs[0], strs[0], strs[0]};
+		} else if (strs.size() == 2) {
+			arr = {strs[0], strs[1], strs[0], strs[1]};
+		} else if (strs.size() == 4) {
+			arr = strs;
+		} else {
+			warningstream << "Invalid array size (" << strs.size()
+					<< " arguments): \"" << value << "\"" << std::endl;
+			return false;
+		}
+		return true;
+	}
+
 	bool parseRect(const std::string &value, irr::core::rect<s32> *parsed_rect) const
 	{
 		irr::core::rect<s32> rect;
diff --git a/src/gui/guiBox.cpp b/src/gui/guiBox.cpp
index 7f329cc32..443f1064f 100644
--- a/src/gui/guiBox.cpp
+++ b/src/gui/guiBox.cpp
@@ -20,9 +20,14 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "guiBox.h"
 
 GUIBox::GUIBox(gui::IGUIEnvironment *env, gui::IGUIElement *parent, s32 id,
-	const core::rect<s32> &rectangle, const video::SColor &color) :
+	const core::rect<s32> &rectangle,
+	const std::array<video::SColor, 4> &colors,
+	const std::array<video::SColor, 4> &bordercolors,
+	const std::array<s32, 4> &borderwidths) :
 	gui::IGUIElement(gui::EGUIET_ELEMENT, env, parent, id, rectangle),
-	m_color(color)
+	m_colors(colors),
+	m_bordercolors(bordercolors),
+	m_borderwidths(borderwidths)
 {
 }
 
@@ -31,8 +36,82 @@ void GUIBox::draw()
 	if (!IsVisible)
 		return;
 
-	Environment->getVideoDriver()->draw2DRectangle(m_color, AbsoluteRect,
-			&AbsoluteClippingRect);
+	std::array<s32, 4> negative_borders = {0, 0, 0, 0};
+	std::array<s32, 4> positive_borders = {0, 0, 0, 0};
+
+	for (size_t i = 0; i <= 3; i++) {
+		if (m_borderwidths[i] > 0)
+			positive_borders[i] = m_borderwidths[i];
+		else
+			negative_borders[i] = m_borderwidths[i];
+	}
+
+	v2s32 upperleft = AbsoluteRect.UpperLeftCorner;
+	v2s32 lowerright = AbsoluteRect.LowerRightCorner;
+
+	v2s32 topleft_border = {
+		upperleft.X - positive_borders[3],
+		upperleft.Y - positive_borders[0]
+	};
+	v2s32 topleft_rect = {
+		upperleft.X - negative_borders[3],
+		upperleft.Y - negative_borders[0]
+	};
+
+	v2s32 lowerright_border = {
+		lowerright.X + positive_borders[1],
+		lowerright.Y + positive_borders[2]
+	};
+	v2s32 lowerright_rect = {
+		lowerright.X + negative_borders[1],
+		lowerright.Y + negative_borders[2]
+	};
+
+	core::rect<s32> main_rect(
+		topleft_rect.X,
+		topleft_rect.Y,
+		lowerright_rect.X,
+		lowerright_rect.Y
+	);
+
+	std::array<core::rect<s32>, 4> border_rects;
+
+	border_rects[0] = core::rect<s32>(
+		topleft_border.X,
+		topleft_border.Y,
+		lowerright_border.X,
+		topleft_rect.Y
+	);
+
+	border_rects[1] = core::rect<s32>(
+		lowerright_rect.X,
+		topleft_rect.Y,
+		lowerright_border.X,
+		lowerright_rect.Y
+	);
+
+	border_rects[2] = core::rect<s32>(
+		topleft_border.X,
+		lowerright_rect.Y,
+		lowerright_border.X,
+		lowerright_border.Y
+	);
+
+	border_rects[3] = core::rect<s32>(
+		topleft_border.X,
+		topleft_rect.Y,
+		topleft_rect.X,
+		lowerright_rect.Y
+	);
+
+	video::IVideoDriver *driver = Environment->getVideoDriver();
+
+	driver->draw2DRectangle(main_rect, m_colors[0], m_colors[1], m_colors[3],
+		m_colors[2], &AbsoluteClippingRect);
+
+	for (size_t i = 0; i <= 3; i++)
+		driver->draw2DRectangle(m_bordercolors[i], border_rects[i],
+				&AbsoluteClippingRect);
 
 	IGUIElement::draw();
 }
diff --git a/src/gui/guiBox.h b/src/gui/guiBox.h
index 5306fdf65..ca8f83771 100644
--- a/src/gui/guiBox.h
+++ b/src/gui/guiBox.h
@@ -19,16 +19,23 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 
 #pragma once
 
+#include <vector>
+#include <array>
 #include "irrlichttypes_extrabloated.h"
 
 class GUIBox : public gui::IGUIElement
 {
 public:
 	GUIBox(gui::IGUIEnvironment *env, gui::IGUIElement *parent, s32 id,
-		const core::rect<s32> &rectangle, const video::SColor &color);
+		const core::rect<s32> &rectangle,
+		const std::array<video::SColor, 4> &colors,
+		const std::array<video::SColor, 4> &bordercolors,
+		const std::array<s32, 4> &borderwidths);
 
 	virtual void draw() override;
 
 private:
-	video::SColor m_color;
+	std::array<video::SColor, 4> m_colors;
+	std::array<video::SColor, 4> m_bordercolors;
+	std::array<s32, 4> m_borderwidths;
 };
diff --git a/src/gui/guiButton.cpp b/src/gui/guiButton.cpp
index e0d6337cd..b98e5de82 100644
--- a/src/gui/guiButton.cpp
+++ b/src/gui/guiButton.cpp
@@ -313,11 +313,12 @@ void GUIButton::draw()
 

 		// PATCH

 		video::ITexture* texture = ButtonImages[(u32)imageState].Texture;

+		video::SColor image_colors[] = { BgColor, BgColor, BgColor, BgColor };

 		if (BgMiddle.getArea() == 0) {

 			driver->draw2DImage(texture,

 					ScaleImage? AbsoluteRect : core::rect<s32>(pos, sourceRect.getSize()),

 					sourceRect, &AbsoluteClippingRect,

-					0, UseAlphaChannel);

+					image_colors, UseAlphaChannel);

 		} else {

 			core::rect<s32> middle = BgMiddle;

 			// `-x` is interpreted as `w - x`

@@ -327,7 +328,7 @@ void GUIButton::draw()
 				middle.LowerRightCorner.Y += texture->getOriginalSize().Height;

 			draw2DImage9Slice(driver, texture,

 					ScaleImage ? AbsoluteRect : core::rect<s32>(pos, sourceRect.getSize()),

-					middle, &AbsoluteClippingRect);

+					middle, &AbsoluteClippingRect, image_colors);

 		}

 		// END PATCH

 	}

@@ -722,6 +723,8 @@ GUIButton* GUIButton::addButton(IGUIEnvironment *environment,
 

 void GUIButton::setColor(video::SColor color)

 {

+	BgColor = color;

+

 	float d = 0.65f;

 	for (size_t i = 0; i < 4; i++) {

 		video::SColor base = Environment->getSkin()->getColor((gui::EGUI_DEFAULT_COLOR)i);

@@ -750,22 +753,26 @@ void GUIButton::setFromStyle(const StyleSpec& style)
 	bool pressed = (style.getState() & StyleSpec::STATE_PRESSED) != 0;

 

 	if (style.isNotDefault(StyleSpec::BGCOLOR)) {

-

 		setColor(style.getColor(StyleSpec::BGCOLOR));

 

 		// If we have a propagated hover/press color, we need to automatically

 		// lighten/darken it

 		if (!Styles[style.getState()].isNotDefault(StyleSpec::BGCOLOR)) {

-			for (size_t i = 0; i < 4; i++) {

 				if (pressed) {

-					Colors[i] = multiplyColorValue(Colors[i], COLOR_PRESSED_MOD);

+					BgColor = multiplyColorValue(BgColor, COLOR_PRESSED_MOD);

+

+					for (size_t i = 0; i < 4; i++)

+						Colors[i] = multiplyColorValue(Colors[i], COLOR_PRESSED_MOD);

 				} else if (hovered) {

-					Colors[i] = multiplyColorValue(Colors[i], COLOR_HOVERED_MOD);

+					BgColor = multiplyColorValue(BgColor, COLOR_HOVERED_MOD);

+

+					for (size_t i = 0; i < 4; i++)

+						Colors[i] = multiplyColorValue(Colors[i], COLOR_HOVERED_MOD);

 				}

-			}

 		}

 

 	} else {

+		BgColor = video::SColor(255, 255, 255, 255);

 		for (size_t i = 0; i < 4; i++) {

 			video::SColor base =

 					Environment->getSkin()->getColor((gui::EGUI_DEFAULT_COLOR)i);

diff --git a/src/gui/guiButton.h b/src/gui/guiButton.h
index 95fa1a2a1..4e1b04aac 100644
--- a/src/gui/guiButton.h
+++ b/src/gui/guiButton.h
@@ -338,5 +338,6 @@ private:
 	core::rect<s32> BgMiddle;

 	core::rect<s32> Padding;

 	core::vector2d<s32> ContentOffset;

+	video::SColor BgColor;

 	// END PATCH

 };

diff --git a/src/gui/guiChatConsole.cpp b/src/gui/guiChatConsole.cpp
index 8de00c12f..ef471106d 100644
--- a/src/gui/guiChatConsole.cpp
+++ b/src/gui/guiChatConsole.cpp
@@ -136,11 +136,6 @@ void GUIChatConsole::closeConsoleAtOnce()
 	recalculateConsolePosition();
 }
 
-f32 GUIChatConsole::getDesiredHeight() const
-{
-	return m_desired_height_fraction;
-}
-
 void GUIChatConsole::replaceAndAddToHistory(const std::wstring &line)
 {
 	ChatPrompt& prompt = m_chat_backend->getPrompt();
@@ -545,7 +540,7 @@ bool GUIChatConsole::OnEvent(const SEvent& event)
 			if (prompt.getCursorLength() <= 0)
 				return true;
 			std::wstring wselected = prompt.getSelection();
-			std::string selected(wselected.begin(), wselected.end());
+			std::string selected = wide_to_utf8(wselected);
 			Environment->getOSOperator()->copyToClipboard(selected.c_str());
 			return true;
 		}
@@ -575,7 +570,7 @@ bool GUIChatConsole::OnEvent(const SEvent& event)
 			if (prompt.getCursorLength() <= 0)
 				return true;
 			std::wstring wselected = prompt.getSelection();
-			std::string selected(wselected.begin(), wselected.end());
+			std::string selected = wide_to_utf8(wselected);
 			Environment->getOSOperator()->copyToClipboard(selected.c_str());
 			prompt.cursorOperation(
 				ChatPrompt::CURSOROP_DELETE,
diff --git a/src/gui/guiChatConsole.h b/src/gui/guiChatConsole.h
index 7be40e27c..204f9f9cc 100644
--- a/src/gui/guiChatConsole.h
+++ b/src/gui/guiChatConsole.h
@@ -55,10 +55,6 @@ public:
 	// Set whether to close the console after the user presses enter.
 	void setCloseOnEnter(bool close) { m_close_on_enter = close; }
 
-	// Return the desired height (fraction of screen size)
-	// Zero if the console is closed or getting closed
-	f32 getDesiredHeight() const;
-
 	// Replace actual line when adding the actual to the history (if there is any)
 	void replaceAndAddToHistory(const std::wstring &line);
 
diff --git a/src/gui/guiConfirmRegistration.cpp b/src/gui/guiConfirmRegistration.cpp
index 55c111df8..020a2796a 100644
--- a/src/gui/guiConfirmRegistration.cpp
+++ b/src/gui/guiConfirmRegistration.cpp
@@ -73,7 +73,11 @@ void GUIConfirmRegistration::regenerateGui(v2u32 screensize)
 	/*
 		Calculate new sizes and positions
 	*/
+#ifdef __ANDROID__
+	const float s = m_gui_scale * porting::getDisplayDensity() / 2;
+#else
 	const float s = m_gui_scale;
+#endif
 	DesiredRect = core::rect<s32>(
 		screensize.X / 2 - 600 * s / 2,
 		screensize.Y / 2 - 360 * s / 2,
@@ -257,12 +261,19 @@ bool GUIConfirmRegistration::getAndroidUIInput()
 	if (!hasAndroidUIInput() || m_jni_field_name != "password")
 		return false;
 
-	std::string text = porting::getInputDialogValue();
-	gui::IGUIElement *e = getElementFromId(ID_confirmPassword);
-	if (e)
-		e->setText(utf8_to_wide(text).c_str());
+	// still waiting
+	if (porting::getInputDialogState() == -1)
+		return true;
 
 	m_jni_field_name.clear();
+
+	gui::IGUIElement *e = getElementFromId(ID_confirmPassword);
+
+	if (!e || e->getType() != irr::gui::EGUIET_EDIT_BOX)
+		return false;
+
+	std::string text = porting::getInputDialogValue();
+	e->setText(utf8_to_wide(text).c_str());
 	return false;
 }
 #endif
diff --git a/src/gui/guiEditBoxWithScrollbar.cpp b/src/gui/guiEditBoxWithScrollbar.cpp
index 442406688..169425a9a 100644
--- a/src/gui/guiEditBoxWithScrollbar.cpp
+++ b/src/gui/guiEditBoxWithScrollbar.cpp
@@ -1028,7 +1028,7 @@ void GUIEditBoxWithScrollBar::breakText()
 	s32 last_line_start = 0;
 	s32 size = Text.size();
 	s32 length = 0;
-	s32 el_width = RelativeRect.getWidth() - 6;
+	s32 el_width = RelativeRect.getWidth() - m_scrollbar_width - 10;
 	wchar_t c;
 
 	for (s32 i = 0; i < size; ++i) {
@@ -1399,8 +1399,6 @@ void GUIEditBoxWithScrollBar::createVScrollBar()
 
 	m_scrollbar_width = skin ? skin->getSize(gui::EGDS_SCROLLBAR_SIZE) : 16;
 
-	RelativeRect.LowerRightCorner.X -= m_scrollbar_width + 4;
-
 	irr::core::rect<s32> scrollbarrect = m_frame_rect;
 	scrollbarrect.UpperLeftCorner.X += m_frame_rect.getWidth() - m_scrollbar_width;
 	m_vscrollbar = new GUIScrollBar(Environment, getParent(), -1,
diff --git a/src/gui/guiEngine.cpp b/src/gui/guiEngine.cpp
index b40707d01..c5ad5c323 100644
--- a/src/gui/guiEngine.cpp
+++ b/src/gui/guiEngine.cpp
@@ -170,6 +170,7 @@ GUIEngine::GUIEngine(JoystickController *joystick,
 			m_menumanager,
 			NULL /* &client */,
 			m_texture_source,
+			m_sound_manager,
 			m_formspecgui,
 			m_buttonhandler,
 			"",
@@ -297,10 +298,14 @@ void GUIEngine::run()
 
 		driver->endScene();
 
+		IrrlichtDevice *device = RenderingEngine::get_raw_device();
+		u32 frametime_min = 1000 / (device->isWindowFocused()
+			? g_settings->getFloat("fps_max")
+			: g_settings->getFloat("fps_max_unfocused"));
 		if (m_clouds_enabled)
-			cloudPostProcess();
+			cloudPostProcess(frametime_min, device);
 		else
-			sleep_ms(25);
+			sleep_ms(frametime_min);
 
 		m_script->step();
 
@@ -367,9 +372,8 @@ void GUIEngine::cloudPreProcess()
 }
 
 /******************************************************************************/
-void GUIEngine::cloudPostProcess()
+void GUIEngine::cloudPostProcess(u32 frametime_min, IrrlichtDevice *device)
 {
-	float fps_max = g_settings->getFloat("pause_fps_max");
 	// Time of frame without fps limit
 	u32 busytime_u32;
 
@@ -380,12 +384,10 @@ void GUIEngine::cloudPostProcess()
 	else
 		busytime_u32 = 0;
 
-	// FPS limiter
-	u32 frametime_min = 1000./fps_max;
-
+	// FPS limit
 	if (busytime_u32 < frametime_min) {
 		u32 sleeptime = frametime_min - busytime_u32;
-		RenderingEngine::get_raw_device()->sleep(sleeptime);
+		device->sleep(sleeptime);
 	}
 }
 
diff --git a/src/gui/guiEngine.h b/src/gui/guiEngine.h
index f9ad0fb0a..eef1ad8aa 100644
--- a/src/gui/guiEngine.h
+++ b/src/gui/guiEngine.h
@@ -29,22 +29,22 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "util/enriched_string.h"
 
 /******************************************************************************/
-/* Typedefs and macros                                                        */
+/* Structs and macros                                                         */
 /******************************************************************************/
 /** texture layer ids */
-typedef enum {
+enum texture_layer {
 	TEX_LAYER_BACKGROUND = 0,
 	TEX_LAYER_OVERLAY,
 	TEX_LAYER_HEADER,
 	TEX_LAYER_FOOTER,
 	TEX_LAYER_MAX
-} texture_layer;
+};
 
-typedef struct {
+struct image_definition {
 	video::ITexture *texture = nullptr;
 	bool             tile;
 	unsigned int     minsize;
-} image_definition;
+};
 
 /******************************************************************************/
 /* forward declarations                                                       */
@@ -277,7 +277,7 @@ private:
 	/** do preprocessing for cloud subsystem */
 	void cloudPreProcess();
 	/** do postprocessing for cloud subsystem */
-	void cloudPostProcess();
+	void cloudPostProcess(u32 frametime_min, IrrlichtDevice *device);
 
 	/** internam data required for drawing clouds */
 	struct clouddata {
diff --git a/src/gui/guiFormSpecMenu.cpp b/src/gui/guiFormSpecMenu.cpp
index 601c5c18e..632b15992 100644
--- a/src/gui/guiFormSpecMenu.cpp
+++ b/src/gui/guiFormSpecMenu.cpp
@@ -48,6 +48,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "settings.h"
 #include "client/client.h"
 #include "client/fontengine.h"
+#include "client/sound.h"
 #include "util/hex.h"
 #include "util/numeric.h"
 #include "util/string.h" // for parseColorString()
@@ -65,6 +66,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "guiScrollContainer.h"
 #include "intlGUIEditBox.h"
 #include "guiHyperText.h"
+#include "guiScene.h"
 
 #define MY_CHECKPOS(a,b)													\
 	if (v_pos.size() != 2) {												\
@@ -94,11 +96,13 @@ inline u32 clamp_u8(s32 value)
 
 GUIFormSpecMenu::GUIFormSpecMenu(JoystickController *joystick,
 		gui::IGUIElement *parent, s32 id, IMenuManager *menumgr,
-		Client *client, ISimpleTextureSource *tsrc, IFormSource *fsrc, TextDest *tdst,
+		Client *client, ISimpleTextureSource *tsrc, ISoundManager *sound_manager,
+		IFormSource *fsrc, TextDest *tdst,
 		const std::string &formspecPrepend, bool remap_dbl_click):
 	GUIModalMenu(RenderingEngine::get_gui_env(), parent, id, menumgr, remap_dbl_click),
 	m_invmgr(client),
 	m_tsrc(tsrc),
+	m_sound_manager(sound_manager),
 	m_client(client),
 	m_formspec_prepend(formspecPrepend),
 	m_form_src(fsrc),
@@ -142,11 +146,12 @@ GUIFormSpecMenu::~GUIFormSpecMenu()
 
 void GUIFormSpecMenu::create(GUIFormSpecMenu *&cur_formspec, Client *client,
 	JoystickController *joystick, IFormSource *fs_src, TextDest *txt_dest,
-	const std::string &formspecPrepend)
+	const std::string &formspecPrepend, ISoundManager *sound_manager)
 {
 	if (cur_formspec == nullptr) {
 		cur_formspec = new GUIFormSpecMenu(joystick, guiroot, -1, &g_menumgr,
-			client, client->getTextureSource(), fs_src, txt_dest, formspecPrepend);
+			client, client->getTextureSource(), sound_manager, fs_src,
+			txt_dest, formspecPrepend);
 		cur_formspec->doPause = false;
 
 		/*
@@ -613,6 +618,9 @@ void GUIFormSpecMenu::parseCheckbox(parserData* data, const std::string &element
 				data->current_parent, spec.fid, spec.flabel.c_str());
 
 		auto style = getDefaultStyleForElement("checkbox", name);
+
+		spec.sound = style.get(StyleSpec::Property::SOUND, "");
+
 		e->setNotClipped(style.getBool(StyleSpec::NOCLIP, false));
 
 		if (spec.fname == m_focused_element) {
@@ -1019,6 +1027,9 @@ void GUIFormSpecMenu::parseButton(parserData* data, const std::string &element,
 				data->current_parent, spec.fid, spec.flabel.c_str());
 
 		auto style = getStyleForElement(type, name, (type != "button") ? "button" : "");
+
+		spec.sound = style[StyleSpec::STATE_DEFAULT].get(StyleSpec::Property::SOUND, "");
+
 		e->setStyles(style);
 
 		if (spec.fname == m_focused_element) {
@@ -1225,6 +1236,7 @@ void GUIFormSpecMenu::parseTable(parserData* data, const std::string &element)
 
 		auto style = getDefaultStyleForElement("table", name);
 		e->setNotClipped(style.getBool(StyleSpec::NOCLIP, false));
+		e->setOverrideFont(style.getFont());
 
 		m_tables.emplace_back(spec, e);
 		m_fields.push_back(spec);
@@ -1302,6 +1314,7 @@ void GUIFormSpecMenu::parseTextList(parserData* data, const std::string &element
 
 		auto style = getDefaultStyleForElement("textlist", name);
 		e->setNotClipped(style.getBool(StyleSpec::NOCLIP, false));
+		e->setOverrideFont(style.getFont());
 
 		m_tables.emplace_back(spec, e);
 		m_fields.push_back(spec);
@@ -1378,6 +1391,9 @@ void GUIFormSpecMenu::parseDropDown(parserData* data, const std::string &element
 			e->setSelected(stoi(str_initial_selection)-1);
 
 		auto style = getDefaultStyleForElement("dropdown", name);
+
+		spec.sound = style.get(StyleSpec::Property::SOUND, "");
+
 		e->setNotClipped(style.getBool(StyleSpec::NOCLIP, false));
 
 		m_fields.push_back(spec);
@@ -1738,12 +1754,16 @@ void GUIFormSpecMenu::parseHyperText(parserData *data, const std::string &elemen
 
 	FieldSpec spec(
 		name,
-		utf8_to_wide(unescape_string(text)),
+		translate_string(utf8_to_wide(unescape_string(text))),
 		L"",
 		258 + m_fields.size()
 	);
 
 	spec.ftype = f_HyperText;
+
+	auto style = getDefaultStyleForElement("hypertext", spec.fname);
+	spec.sound = style.get(StyleSpec::Property::SOUND, "");
+
 	GUIHyperText *e = new GUIHyperText(spec.flabel.c_str(), Environment,
 			data->current_parent, spec.fid, rect, m_client, m_tsrc);
 	e->drop();
@@ -1996,6 +2016,8 @@ void GUIFormSpecMenu::parseImageButton(parserData* data, const std::string &elem
 
 		auto style = getStyleForElement("image_button", spec.fname);
 
+		spec.sound = style[StyleSpec::STATE_DEFAULT].get(StyleSpec::Property::SOUND, "");
+
 		// Override style properties with values specified directly in the element
 		if (!image_name.empty())
 			style[StyleSpec::STATE_DEFAULT].set(StyleSpec::FGIMG, image_name);
@@ -2104,6 +2126,9 @@ void GUIFormSpecMenu::parseTabHeader(parserData* data, const std::string &elemen
 		e->setTabHeight(geom.Y);
 
 		auto style = getDefaultStyleForElement("tabheader", name);
+
+		spec.sound = style.get(StyleSpec::Property::SOUND, "");
+
 		e->setNotClipped(style.getBool(StyleSpec::NOCLIP, true));
 
 		for (const std::string &button : buttons) {
@@ -2192,6 +2217,9 @@ void GUIFormSpecMenu::parseItemImageButton(parserData* data, const std::string &
 				item_name, m_client);
 
 		auto style = getStyleForElement("item_image_button", spec_btn.fname, "image_button");
+
+		spec_btn.sound = style[StyleSpec::STATE_DEFAULT].get(StyleSpec::Property::SOUND, "");
+
 		e_btn->setStyles(style);
 
 		if (spec_btn.fname == m_focused_element) {
@@ -2209,16 +2237,16 @@ void GUIFormSpecMenu::parseItemImageButton(parserData* data, const std::string &
 
 void GUIFormSpecMenu::parseBox(parserData* data, const std::string &element)
 {
-	std::vector<std::string> parts = split(element,';');
+	std::vector<std::string> parts = split(element, ';');
 
 	if ((parts.size() == 3) ||
 		((parts.size() > 3) && (m_formspec_version > FORMSPEC_API_VERSION)))
 	{
-		std::vector<std::string> v_pos = split(parts[0],',');
-		std::vector<std::string> v_geom = split(parts[1],',');
+		std::vector<std::string> v_pos = split(parts[0], ',');
+		std::vector<std::string> v_geom = split(parts[1], ',');
 
-		MY_CHECKPOS("box",0);
-		MY_CHECKGEOM("box",1);
+		MY_CHECKPOS("box", 0);
+		MY_CHECKGEOM("box", 1);
 
 		v2s32 pos;
 		v2s32 geom;
@@ -2232,36 +2260,43 @@ void GUIFormSpecMenu::parseBox(parserData* data, const std::string &element)
 			geom.Y = stof(v_geom[1]) * spacing.Y;
 		}
 
-		video::SColor tmp_color;
-
-		if (parseColorString(parts[2], tmp_color, false, 0x8C)) {
-			FieldSpec spec(
-				"",
-				L"",
-				L"",
-				258 + m_fields.size(),
-				-2
-			);
-			spec.ftype = f_Box;
+		FieldSpec spec(
+			"",
+			L"",
+			L"",
+			258 + m_fields.size(),
+			-2
+		);
+		spec.ftype = f_Box;
 
-			core::rect<s32> rect(pos, pos + geom);
+		auto style = getDefaultStyleForElement("box", spec.fname);
 
-			GUIBox *e = new GUIBox(Environment, data->current_parent, spec.fid,
-					rect, tmp_color);
+		video::SColor tmp_color;
+		std::array<video::SColor, 4> colors;
+		std::array<video::SColor, 4> bordercolors = {0x0, 0x0, 0x0, 0x0};
+		std::array<s32, 4> borderwidths = {0, 0, 0, 0};
 
-			auto style = getDefaultStyleForElement("box", spec.fname);
-			e->setNotClipped(style.getBool(StyleSpec::NOCLIP, m_formspec_version < 3));
+		if (parseColorString(parts[2], tmp_color, true, 0x8C)) {
+			colors = {tmp_color, tmp_color, tmp_color, tmp_color};
+		} else {
+			colors = style.getColorArray(StyleSpec::COLORS, {0x0, 0x0, 0x0, 0x0});
+			bordercolors = style.getColorArray(StyleSpec::BORDERCOLORS,
+				{0x0, 0x0, 0x0, 0x0});
+			borderwidths = style.getIntArray(StyleSpec::BORDERWIDTHS, {0, 0, 0, 0});
+		}
 
-			e->drop();
+		core::rect<s32> rect(pos, pos + geom);
 
-			m_fields.push_back(spec);
+		GUIBox *e = new GUIBox(Environment, data->current_parent, spec.fid, rect,
+			colors, bordercolors, borderwidths);
+		e->setNotClipped(style.getBool(StyleSpec::NOCLIP, m_formspec_version < 3));
+		e->drop();
 
-		} else {
-			errorstream<< "Invalid Box element(" << parts.size() << "): '" << element << "'  INVALID COLOR"  << std::endl;
-		}
+		m_fields.push_back(spec);
 		return;
 	}
-	errorstream<< "Invalid Box element(" << parts.size() << "): '" << element << "'"  << std::endl;
+	errorstream << "Invalid Box element(" << parts.size() << "): '" << element
+		<< "'" << std::endl;
 }
 
 void GUIFormSpecMenu::parseBackgroundColor(parserData* data, const std::string &element)
@@ -2686,6 +2721,86 @@ void GUIFormSpecMenu::parseSetFocus(const std::string &element)
 		<< "'" << std::endl;
 }
 
+void GUIFormSpecMenu::parseModel(parserData *data, const std::string &element)
+{
+	std::vector<std::string> parts = split(element, ';');
+
+	if (parts.size() < 5 || (parts.size() > 8 &&
+			m_formspec_version <= FORMSPEC_API_VERSION)) {
+		errorstream << "Invalid model element (" << parts.size() << "): '" << element
+			<< "'" << std::endl;
+		return;
+	}
+
+	// Avoid length checks by resizing
+	if (parts.size() < 8)
+		parts.resize(8);
+
+	std::vector<std::string> v_pos = split(parts[0], ',');
+	std::vector<std::string> v_geom = split(parts[1], ',');
+	std::string name = unescape_string(parts[2]);
+	std::string meshstr = unescape_string(parts[3]);
+	std::vector<std::string> textures = split(parts[4], ',');
+	std::vector<std::string> vec_rot = split(parts[5], ',');
+	bool inf_rotation = is_yes(parts[6]);
+	bool mousectrl = is_yes(parts[7]) || parts[7].empty(); // default true
+
+	MY_CHECKPOS("model", 0);
+	MY_CHECKGEOM("model", 1);
+
+	v2s32 pos;
+	v2s32 geom;
+
+	if (data->real_coordinates) {
+		pos = getRealCoordinateBasePos(v_pos);
+		geom = getRealCoordinateGeometry(v_geom);
+	} else {
+		pos = getElementBasePos(&v_pos);
+		geom.X = stof(v_geom[0]) * (float)imgsize.X;
+		geom.Y = stof(v_geom[1]) * (float)imgsize.Y;
+	}
+
+	if (!data->explicit_size)
+		warningstream << "invalid use of model without a size[] element" << std::endl;
+
+	scene::IAnimatedMesh *mesh = m_client->getMesh(meshstr);
+
+	if (!mesh) {
+		errorstream << "Invalid model element: Unable to load mesh:"
+				<< std::endl << "\t" << meshstr << std::endl;
+		return;
+	}
+
+	FieldSpec spec(
+		name,
+		L"",
+		L"",
+		258 + m_fields.size()
+	);
+
+	core::rect<s32> rect(pos, pos + geom);
+
+	GUIScene *e = new GUIScene(Environment, RenderingEngine::get_scene_manager(),
+			data->current_parent, rect, spec.fid);
+
+	auto meshnode = e->setMesh(mesh);
+
+	for (u32 i = 0; i < textures.size() && i < meshnode->getMaterialCount(); ++i)
+		e->setTexture(i, m_tsrc->getTexture(textures[i]));
+
+	if (vec_rot.size() >= 2)
+		e->setRotation(v2f(stof(vec_rot[0]), stof(vec_rot[1])));
+
+	e->enableContinuousRotation(inf_rotation);
+	e->enableMouseControl(mousectrl);
+
+	auto style = getStyleForElement("model", spec.fname);
+	e->setStyles(style);
+	e->drop();
+
+	m_fields.push_back(spec);
+}
+
 void GUIFormSpecMenu::parseElement(parserData* data, const std::string &element)
 {
 	//some prechecks
@@ -2882,6 +2997,11 @@ void GUIFormSpecMenu::parseElement(parserData* data, const std::string &element)
 		return;
 	}
 
+	if (type == "model") {
+		parseModel(data, description);
+		return;
+	}
+
 	// Ignore others
 	infostream << "Unknown DrawSpec: type=" << type << ", data=\"" << description << "\""
 			<< std::endl;
@@ -3110,42 +3230,42 @@ void GUIFormSpecMenu::regenerateGui(v2u32 screensize)
 			// and default scaling (1.00).
 			use_imgsize = 0.5555 * screen_dpi * gui_scaling;
 		} else {
-			// In variable-size mode, we prefer to make the
-			// inventory image size 1/15 of screen height,
-			// multiplied by the gui_scaling config parameter.
-			// If the preferred size won't fit the whole
-			// form on the screen, either horizontally or
-			// vertically, then we scale it down to fit.
-			// (The magic numbers in the computation of what
-			// fits arise from the scaling factors in the
-			// following stanza, including the form border,
-			// help text space, and 0.1 inventory slot spare.)
-			// However, a minimum size is also set, that
-			// the image size can't be less than 0.3 inch
-			// multiplied by gui_scaling, even if this means
-			// the form doesn't fit the screen.
+			// Variables for the maximum imgsize that can fit in the screen.
+			double fitx_imgsize;
+			double fity_imgsize;
+
+			// Pad the screensize with 5% of the screensize on all sides to ensure
+			// that even the largest formspecs don't touch the screen borders.
+			v2f padded_screensize(
+				mydata.screensize.X * 0.9f,
+				mydata.screensize.Y * 0.9f
+			);
+
+			if (mydata.real_coordinates) {
+				fitx_imgsize = padded_screensize.X / mydata.invsize.X;
+				fity_imgsize = padded_screensize.Y / mydata.invsize.Y;
+			} else {
+				// The maximum imgsize in the old coordinate system also needs to
+				// factor in padding and spacing along with 0.1 inventory slot spare
+				// and help text space, hence the magic numbers.
+				fitx_imgsize = padded_screensize.X /
+						((5.0 / 4.0) * (0.5 + mydata.invsize.X));
+				fity_imgsize = padded_screensize.Y /
+						((15.0 / 13.0) * (0.85 + mydata.invsize.Y));
+			}
+
 #ifdef __ANDROID__
-			// For mobile devices these magic numbers are
-			// different and forms should always use the
-			// maximum screen space available.
-			double prefer_imgsize = mydata.screensize.Y / 10 * gui_scaling;
-			double fitx_imgsize = mydata.screensize.X /
-				((12.0 / 8.0) * (0.5 + mydata.invsize.X));
-			double fity_imgsize = mydata.screensize.Y /
-				((15.0 / 11.0) * (0.85 + mydata.invsize.Y));
-			use_imgsize = MYMIN(prefer_imgsize,
-					MYMIN(fitx_imgsize, fity_imgsize));
+			// In Android, the preferred imgsize should be larger to accommodate the
+			// smaller screensize.
+			double prefer_imgsize = padded_screensize.Y / 10 * gui_scaling;
 #else
-			double prefer_imgsize = mydata.screensize.Y / 15 * gui_scaling;
-			double fitx_imgsize = mydata.screensize.X /
-				((5.0 / 4.0) * (0.5 + mydata.invsize.X));
-			double fity_imgsize = mydata.screensize.Y /
-				((15.0 / 13.0) * (0.85 * mydata.invsize.Y));
-			double screen_dpi = RenderingEngine::getDisplayDensity() * 96;
-			double min_imgsize = 0.3 * screen_dpi * gui_scaling;
-			use_imgsize = MYMAX(min_imgsize, MYMIN(prefer_imgsize,
-				MYMIN(fitx_imgsize, fity_imgsize)));
+			// Desktop computers have more space, so try to fit 15 coordinates.
+			double prefer_imgsize = padded_screensize.Y / 15 * gui_scaling;
 #endif
+			// Try to use the preferred imgsize, but if that's bigger than the maximum
+			// size, use the maximum size.
+			use_imgsize = std::min(prefer_imgsize,
+					std::min(fitx_imgsize, fity_imgsize));
 		}
 
 		// Everything else is scaled in proportion to the
@@ -3474,10 +3594,14 @@ void GUIFormSpecMenu::drawMenu()
 		e->setVisible(true);
 
 	/*
-		Call base class
-		(This is where all the drawing happens.)
+		This is where all the drawing happens.
 	*/
-	gui::IGUIElement::draw();
+	core::list<IGUIElement*>::Iterator it = Children.begin();
+	for (; it != Children.end(); ++it)
+		if ((*it)->isNotClipped() ||
+				AbsoluteClippingRect.isRectCollided(
+						(*it)->getAbsolutePosition()))
+			(*it)->draw();
 
 	for (gui::IGUIElement *e : m_clickthrough_elements)
 		e->setVisible(false);
@@ -4387,6 +4511,8 @@ bool GUIFormSpecMenu::OnEvent(const SEvent& event)
 			for (GUIFormSpecMenu::FieldSpec &s : m_fields) {
 				if ((s.ftype == f_TabHeader) &&
 						(s.fid == event.GUIEvent.Caller->getID())) {
+					if (!s.sound.empty() && m_sound_manager)
+						m_sound_manager->playSound(s.sound, false, 1.0f);
 					s.send = true;
 					acceptInput();
 					s.send = false;
@@ -4430,6 +4556,9 @@ bool GUIFormSpecMenu::OnEvent(const SEvent& event)
 					continue;
 
 				if (s.ftype == f_Button || s.ftype == f_CheckBox) {
+					if (!s.sound.empty() && m_sound_manager)
+						m_sound_manager->playSound(s.sound, false, 1.0f);
+
 					s.send = true;
 					if (s.is_exit) {
 						if (m_allowclose) {
@@ -4452,6 +4581,8 @@ bool GUIFormSpecMenu::OnEvent(const SEvent& event)
 							s2.send = false;
 						}
 					}
+					if (!s.sound.empty() && m_sound_manager)
+						m_sound_manager->playSound(s.sound, false, 1.0f);
 					s.send = true;
 					acceptInput(quit_mode_no);
 
@@ -4468,6 +4599,8 @@ bool GUIFormSpecMenu::OnEvent(const SEvent& event)
 					acceptInput(quit_mode_no);
 					s.fdefault = L"";
 				} else if (s.ftype == f_Unknown || s.ftype == f_HyperText) {
+					if (!s.sound.empty() && m_sound_manager)
+						m_sound_manager->playSound(s.sound, false, 1.0f);
 					s.send = true;
 					acceptInput();
 					s.send = false;
diff --git a/src/gui/guiFormSpecMenu.h b/src/gui/guiFormSpecMenu.h
index 613acaa04..37106cb65 100644
--- a/src/gui/guiFormSpecMenu.h
+++ b/src/gui/guiFormSpecMenu.h
@@ -38,10 +38,10 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 class InventoryManager;
 class ISimpleTextureSource;
 class Client;
-class TexturePool;
 class GUIScrollContainer;
+class ISoundManager;
 
-typedef enum {
+enum FormspecFieldType {
 	f_Button,
 	f_Table,
 	f_TabHeader,
@@ -53,13 +53,13 @@ typedef enum {
 	f_HyperText,
 	f_AnimatedImage,
 	f_Unknown
-} FormspecFieldType;
+};
 
-typedef enum {
+enum FormspecQuitMode {
 	quit_mode_no,
 	quit_mode_accept,
 	quit_mode_cancel
-} FormspecQuitMode;
+};
 
 struct TextDest
 {
@@ -128,6 +128,7 @@ class GUIFormSpecMenu : public GUIModalMenu
 		int priority;
 		core::rect<s32> rect;
 		gui::ECURSOR_ICON fcursor_icon;
+		std::string sound;
 	};
 
 	struct TooltipSpec
@@ -152,6 +153,7 @@ public:
 			IMenuManager *menumgr,
 			Client *client,
 			ISimpleTextureSource *tsrc,
+			ISoundManager *sound_manager,
 			IFormSource* fs_src,
 			TextDest* txt_dst,
 			const std::string &formspecPrepend,
@@ -161,7 +163,7 @@ public:
 
 	static void create(GUIFormSpecMenu *&cur_formspec, Client *client,
 		JoystickController *joystick, IFormSource *fs_src, TextDest *txt_dest,
-		const std::string &formspecPrepend);
+		const std::string &formspecPrepend, ISoundManager *sound_manager);
 
 	void setFormSpec(const std::string &formspec_string,
 			const InventoryLocation &current_inventory_location)
@@ -294,6 +296,7 @@ protected:
 
 	InventoryManager *m_invmgr;
 	ISimpleTextureSource *m_tsrc;
+	ISoundManager *m_sound_manager;
 	Client *m_client;
 
 	std::string m_formspec_string;
@@ -353,7 +356,7 @@ private:
 	JoystickController *m_joystick;
 	bool m_show_debug = false;
 
-	typedef struct {
+	struct parserData {
 		bool explicit_size;
 		bool real_coordinates;
 		u8 simple_field_count;
@@ -381,16 +384,16 @@ private:
 
 		// used to restore table selection/scroll/treeview state
 		std::unordered_map<std::string, GUITable::DynamicData> table_dyndata;
-	} parserData;
+	};
 
-	typedef struct {
+	struct fs_key_pending {
 		bool key_up;
 		bool key_down;
 		bool key_enter;
 		bool key_escape;
-	} fs_key_pendig;
+	};
 
-	fs_key_pendig current_keys_pending;
+	fs_key_pending current_keys_pending;
 	std::string current_field_enter_pending = "";
 	std::vector<std::string> m_hovered_item_tooltips;
 
@@ -444,6 +447,7 @@ private:
 	void parseAnchor(parserData *data, const std::string &element);
 	bool parseStyle(parserData *data, const std::string &element, bool style_type);
 	void parseSetFocus(const std::string &element);
+	void parseModel(parserData *data, const std::string &element);
 
 	void tryClose();
 
diff --git a/src/gui/guiPasswordChange.cpp b/src/gui/guiPasswordChange.cpp
index 5311c6fef..74cd62f5b 100644
--- a/src/gui/guiPasswordChange.cpp
+++ b/src/gui/guiPasswordChange.cpp
@@ -79,7 +79,11 @@ void GUIPasswordChange::regenerateGui(v2u32 screensize)
 	/*
 		Calculate new sizes and positions
 	*/
+#ifdef __ANDROID__
+	const float s = m_gui_scale * porting::getDisplayDensity() / 2;
+#else
 	const float s = m_gui_scale;
+#endif
 	DesiredRect = core::rect<s32>(
 		screensize.X / 2 - 580 * s / 2,
 		screensize.Y / 2 - 300 * s / 2,
@@ -289,6 +293,10 @@ bool GUIPasswordChange::getAndroidUIInput()
 	if (!hasAndroidUIInput())
 		return false;
 
+	// still waiting
+	if (porting::getInputDialogState() == -1)
+		return true;
+
 	gui::IGUIElement *e = nullptr;
 	if (m_jni_field_name == "old_password")
 		e = getElementFromId(ID_oldPassword);
@@ -296,12 +304,13 @@ bool GUIPasswordChange::getAndroidUIInput()
 		e = getElementFromId(ID_newPassword1);
 	else if (m_jni_field_name == "new_password_2")
 		e = getElementFromId(ID_newPassword2);
-
-	if (e) {
-		std::string text = porting::getInputDialogValue();
-		e->setText(utf8_to_wide(text).c_str());
-	}
 	m_jni_field_name.clear();
+
+	if (!e || e->getType() != irr::gui::EGUIET_EDIT_BOX)
+		return false;
+
+	std::string text = porting::getInputDialogValue();
+	e->setText(utf8_to_wide(text).c_str());
 	return false;
 }
 #endif
diff --git a/src/gui/guiScene.cpp b/src/gui/guiScene.cpp
new file mode 100644
index 000000000..08f119e07
--- /dev/null
+++ b/src/gui/guiScene.cpp
@@ -0,0 +1,257 @@
+/*
+Minetest
+Copyright (C) 2020 Jean-Patrick Guerrero <jeanpatrick.guerrero@gmail.com>
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU Lesser General Public License as published by
+the Free Software Foundation; either version 2.1 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public License along
+with this program; if not, write to the Free Software Foundation, Inc.,
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include "guiScene.h"
+
+#include <SViewFrustum.h>
+#include <IAnimatedMeshSceneNode.h>
+#include <ILightSceneNode.h>
+#include "porting.h"
+
+GUIScene::GUIScene(gui::IGUIEnvironment *env, scene::ISceneManager *smgr,
+		   gui::IGUIElement *parent, core::recti rect, s32 id)
+	: IGUIElement(gui::EGUIET_ELEMENT, env, parent, id, rect)
+{
+	m_driver = env->getVideoDriver();
+	m_smgr = smgr->createNewSceneManager(false);
+
+	m_cam = m_smgr->addCameraSceneNode(0, v3f(0.f, 0.f, -100.f), v3f(0.f));
+	m_cam->setFOV(30.f * core::DEGTORAD);
+
+	scene::ILightSceneNode *light = m_smgr->addLightSceneNode(m_cam);
+	light->setRadius(1000.f);
+
+	m_smgr->getParameters()->setAttribute(scene::ALLOW_ZWRITE_ON_TRANSPARENT, true);
+}
+
+GUIScene::~GUIScene()
+{
+	setMesh(nullptr);
+
+	m_smgr->drop();
+}
+
+scene::IAnimatedMeshSceneNode *GUIScene::setMesh(scene::IAnimatedMesh *mesh)
+{
+	if (m_mesh) {
+		m_mesh->remove();
+		m_mesh = nullptr;
+	}
+
+	if (!mesh)
+		return nullptr;
+
+	m_mesh = m_smgr->addAnimatedMeshSceneNode(mesh);
+	m_mesh->setPosition(-m_mesh->getBoundingBox().getCenter());
+	m_mesh->animateJoints();
+	return m_mesh;
+}
+
+void GUIScene::setTexture(u32 idx, video::ITexture *texture)
+{
+	video::SMaterial &material = m_mesh->getMaterial(idx);
+	material.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
+	material.MaterialTypeParam = 0.5f;
+	material.TextureLayer[0].Texture = texture;
+	material.setFlag(video::EMF_LIGHTING, false);
+	material.setFlag(video::EMF_FOG_ENABLE, true);
+	material.setFlag(video::EMF_BILINEAR_FILTER, false);
+	material.setFlag(video::EMF_BACK_FACE_CULLING, false);
+}
+
+void GUIScene::draw()
+{
+	// Control rotation speed based on time
+	u64 new_time = porting::getTimeMs();
+	u64 dtime_ms = 0;
+	if (m_last_time != 0)
+		dtime_ms = porting::getDeltaMs(m_last_time, new_time);
+	m_last_time = new_time;
+
+	core::rect<s32> oldViewPort = m_driver->getViewPort();
+	m_driver->setViewPort(getAbsoluteClippingRect());
+	core::recti borderRect = Environment->getRootGUIElement()->getAbsoluteClippingRect();
+
+	if (m_bgcolor != 0) {
+		Environment->getSkin()->draw3DSunkenPane(
+			this, m_bgcolor, false, true, borderRect, 0);
+	}
+
+	core::dimension2d<s32> size = getAbsoluteClippingRect().getSize();
+	m_smgr->getActiveCamera()->setAspectRatio((f32)size.Width / (f32)size.Height);
+
+	if (!m_target) {
+		updateCamera(m_smgr->addEmptySceneNode());
+		rotateCamera(v3f(0.f));
+		m_cam->bindTargetAndRotation(true);
+	}
+
+	cameraLoop();
+
+	// Continuous rotation
+	if (m_inf_rot)
+		rotateCamera(v3f(0.f, -0.03f * (float)dtime_ms, 0.f));
+
+	m_smgr->drawAll();
+
+	if (m_initial_rotation && m_mesh) {
+		rotateCamera(v3f(m_custom_rot.X, m_custom_rot.Y, 0.f));
+		calcOptimalDistance();
+
+		m_initial_rotation = false;
+	}
+
+	m_driver->setViewPort(oldViewPort);
+}
+
+bool GUIScene::OnEvent(const SEvent &event)
+{
+	if (m_mouse_ctrl && event.EventType == EET_MOUSE_INPUT_EVENT) {
+		if (event.MouseInput.Event == EMIE_LMOUSE_PRESSED_DOWN) {
+			m_last_pos = v2f((f32)event.MouseInput.X, (f32)event.MouseInput.Y);
+			return true;
+		} else if (event.MouseInput.Event == EMIE_MOUSE_MOVED) {
+			if (event.MouseInput.isLeftPressed()) {
+				m_curr_pos = v2f((f32)event.MouseInput.X, (f32)event.MouseInput.Y);
+
+				rotateCamera(v3f(
+					m_last_pos.Y - m_curr_pos.Y,
+					m_curr_pos.X - m_last_pos.X, 0.f));
+
+				m_last_pos = m_curr_pos;
+				return true;
+			}
+		}
+	}
+
+	return gui::IGUIElement::OnEvent(event);
+}
+
+void GUIScene::setStyles(const std::array<StyleSpec, StyleSpec::NUM_STATES> &styles)
+{
+	StyleSpec::State state = StyleSpec::STATE_DEFAULT;
+	StyleSpec style = StyleSpec::getStyleFromStatePropagation(styles, state);
+
+	setNotClipped(style.getBool(StyleSpec::NOCLIP, false));
+	setBackgroundColor(style.getColor(StyleSpec::BGCOLOR, m_bgcolor));
+}
+
+/* Camera control functions */
+
+inline void GUIScene::calcOptimalDistance()
+{
+	core::aabbox3df box = m_mesh->getBoundingBox();
+	f32 width  = box.MaxEdge.X - box.MinEdge.X;
+	f32 height = box.MaxEdge.Y - box.MinEdge.Y;
+	f32 depth  = box.MaxEdge.Z - box.MinEdge.Z;
+	f32 max_width = width > depth ? width : depth;
+
+	const scene::SViewFrustum *f = m_cam->getViewFrustum();
+	f32 cam_far = m_cam->getFarValue();
+	f32 far_width = core::line3df(f->getFarLeftUp(), f->getFarRightUp()).getLength();
+	f32 far_height = core::line3df(f->getFarLeftUp(), f->getFarLeftDown()).getLength();
+
+	core::recti rect = getAbsolutePosition();
+	f32 zoomX = rect.getWidth() / max_width;
+	f32 zoomY = rect.getHeight() / height;
+	f32 dist;
+
+	if (zoomX < zoomY)
+		dist = (max_width / (far_width / cam_far)) + (0.5f * max_width);
+	else
+		dist = (height / (far_height / cam_far)) + (0.5f * max_width);
+
+	m_cam_distance = dist;
+	m_update_cam = true;
+}
+
+void GUIScene::updateCamera(scene::ISceneNode *target)
+{
+	m_target = target;
+	updateTargetPos();
+
+	m_last_target_pos = m_target_pos;
+	updateCameraPos();
+
+	m_update_cam = true;
+}
+
+void GUIScene::updateTargetPos()
+{
+	m_last_target_pos = m_target_pos;
+	m_target->updateAbsolutePosition();
+	m_target_pos = m_target->getAbsolutePosition();
+}
+
+void GUIScene::setCameraRotation(v3f rot)
+{
+	correctBounds(rot);
+
+	core::matrix4 mat;
+	mat.setRotationDegrees(rot);
+
+	m_cam_pos = v3f(0.f, 0.f, m_cam_distance);
+	mat.rotateVect(m_cam_pos);
+
+	m_cam_pos += m_target_pos;
+	m_cam->setPosition(m_cam_pos);
+	m_update_cam = false;
+}
+
+bool GUIScene::correctBounds(v3f &rot)
+{
+	const float ROTATION_MAX_1 = 60.0f;
+	const float ROTATION_MAX_2 = 300.0f;
+
+	// Limit and correct the rotation when needed
+	if (rot.X < 90.f) {
+		if (rot.X > ROTATION_MAX_1) {
+			rot.X = ROTATION_MAX_1;
+			return true;
+		}
+	} else if (rot.X < ROTATION_MAX_2) {
+		rot.X = ROTATION_MAX_2;
+		return true;
+	}
+
+	// Not modified
+	return false;
+}
+
+void GUIScene::cameraLoop()
+{
+	updateCameraPos();
+	updateTargetPos();
+
+	if (m_target_pos != m_last_target_pos)
+		m_update_cam = true;
+
+	if (m_update_cam) {
+		m_cam_pos = m_target_pos + (m_cam_pos - m_target_pos).normalize() * m_cam_distance;
+
+		v3f rot = getCameraRotation();
+		if (correctBounds(rot))
+			setCameraRotation(rot);
+
+		m_cam->setPosition(m_cam_pos);
+		m_cam->setTarget(m_target_pos);
+
+		m_update_cam = false;
+	}
+}
diff --git a/src/gui/guiScene.h b/src/gui/guiScene.h
new file mode 100644
index 000000000..707e6f66a
--- /dev/null
+++ b/src/gui/guiScene.h
@@ -0,0 +1,85 @@
+/*
+Minetest
+Copyright (C) 2020 Jean-Patrick Guerrero <jeanpatrick.guerrero@gmail.com>
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU Lesser General Public License as published by
+the Free Software Foundation; either version 2.1 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public License along
+with this program; if not, write to the Free Software Foundation, Inc.,
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#pragma once
+
+#include "irrlichttypes_extrabloated.h"
+#include "ICameraSceneNode.h"
+#include "StyleSpec.h"
+
+using namespace irr;
+
+class GUIScene : public gui::IGUIElement
+{
+public:
+	GUIScene(gui::IGUIEnvironment *env, scene::ISceneManager *smgr,
+		 gui::IGUIElement *parent, core::recti rect, s32 id = -1);
+
+	~GUIScene();
+
+	scene::IAnimatedMeshSceneNode *setMesh(scene::IAnimatedMesh *mesh = nullptr);
+	void setTexture(u32 idx, video::ITexture *texture);
+	void setBackgroundColor(const video::SColor &color) noexcept { m_bgcolor = color; };
+	void enableMouseControl(bool enable) noexcept { m_mouse_ctrl = enable; };
+	void setRotation(v2f rot) noexcept { m_custom_rot = rot; };
+	void enableContinuousRotation(bool enable) noexcept { m_inf_rot = enable; };
+	void setStyles(const std::array<StyleSpec, StyleSpec::NUM_STATES> &styles);
+
+	virtual void draw();
+	virtual bool OnEvent(const SEvent &event);
+
+private:
+	void calcOptimalDistance();
+	void updateTargetPos();
+	void updateCamera(scene::ISceneNode *target);
+	void setCameraRotation(v3f rot);
+	/// @return true indicates that the rotation was corrected
+	bool correctBounds(v3f &rot);
+	void cameraLoop();
+
+	void updateCameraPos() { m_cam_pos = m_cam->getPosition(); };
+	v3f getCameraRotation() const { return (m_cam_pos - m_target_pos).getHorizontalAngle(); };
+	void rotateCamera(const v3f &delta) { setCameraRotation(getCameraRotation() + delta); };
+
+	scene::ISceneManager *m_smgr;
+	video::IVideoDriver *m_driver;
+	scene::ICameraSceneNode *m_cam;
+	scene::ISceneNode *m_target = nullptr;
+	scene::IAnimatedMeshSceneNode *m_mesh = nullptr;
+
+	f32 m_cam_distance = 50.f;
+
+	u64 m_last_time = 0;
+
+	v3f m_cam_pos;
+	v3f m_target_pos;
+	v3f m_last_target_pos;
+	// Cursor positions
+	v2f m_curr_pos;
+	v2f m_last_pos;
+	// Initial rotation
+	v2f m_custom_rot;
+
+	bool m_mouse_ctrl = true;
+	bool m_update_cam = false;
+	bool m_inf_rot    = false;
+	bool m_initial_rotation = true;
+
+	video::SColor m_bgcolor = 0;
+};
diff --git a/src/gui/guiScrollBar.cpp b/src/gui/guiScrollBar.cpp
index b04ccb9d5..c6a03f3e4 100644
--- a/src/gui/guiScrollBar.cpp
+++ b/src/gui/guiScrollBar.cpp
@@ -21,7 +21,7 @@ GUIScrollBar::GUIScrollBar(IGUIEnvironment *environment, IGUIElement *parent, s3
 		is_horizontal(horizontal), is_auto_scaling(auto_scale),
 		dragged_by_slider(false), tray_clicked(false), scroll_pos(0),
 		draw_center(0), thumb_size(0), min_pos(0), max_pos(100), small_step(10),
-		large_step(50), last_change(0), drag_offset(0), page_size(100), border_size(0)
+		large_step(50), drag_offset(0), page_size(100), border_size(0)
 {
 	refreshControls();
 	setNotClipped(false);
diff --git a/src/gui/guiScrollBar.h b/src/gui/guiScrollBar.h
index 29493bb99..d18f8e875 100644
--- a/src/gui/guiScrollBar.h
+++ b/src/gui/guiScrollBar.h
@@ -68,7 +68,6 @@ private:
 	s32 max_pos;
 	s32 small_step;
 	s32 large_step;
-	u32 last_change;
 	s32 drag_offset;
 	s32 page_size;
 	s32 border_size;
diff --git a/src/gui/guiScrollContainer.cpp b/src/gui/guiScrollContainer.cpp
index 88cdc7057..0fe4c41bd 100644
--- a/src/gui/guiScrollContainer.cpp
+++ b/src/gui/guiScrollContainer.cpp
@@ -56,6 +56,18 @@ bool GUIScrollContainer::OnEvent(const SEvent &event)
 	return IGUIElement::OnEvent(event);
 }
 
+void GUIScrollContainer::draw()
+{
+	if (isVisible()) {
+		core::list<IGUIElement *>::Iterator it = Children.begin();
+		for (; it != Children.end(); ++it)
+			if ((*it)->isNotClipped() ||
+					AbsoluteClippingRect.isRectCollided(
+							(*it)->getAbsolutePosition()))
+				(*it)->draw();
+	}
+}
+
 void GUIScrollContainer::updateScrolling()
 {
 	s32 pos = m_scrollbar->getPos();
diff --git a/src/gui/guiScrollContainer.h b/src/gui/guiScrollContainer.h
index a0306291e..9e3ec6e93 100644
--- a/src/gui/guiScrollContainer.h
+++ b/src/gui/guiScrollContainer.h
@@ -32,6 +32,8 @@ public:
 
 	virtual bool OnEvent(const SEvent &event) override;
 
+	virtual void draw() override;
+
 	inline void onScrollEvent(gui::IGUIElement *caller)
 	{
 		if (caller == m_scrollbar)
diff --git a/src/gui/guiSkin.cpp b/src/gui/guiSkin.cpp
index 8892a00b4..e09209bd9 100644
--- a/src/gui/guiSkin.cpp
+++ b/src/gui/guiSkin.cpp
@@ -29,7 +29,7 @@ GUISkin::GUISkin(EGUI_SKIN_TYPE type, video::IVideoDriver* driver)
 	{

 		Colors[EGDC_3D_DARK_SHADOW]     = video::SColor(101,50,50,50);

 		Colors[EGDC_3D_SHADOW]          = video::SColor(101,130,130,130);

-		Colors[EGDC_3D_FACE]            = video::SColor(101,210,210,210);

+		Colors[EGDC_3D_FACE]            = video::SColor(220,100,100,100);

 		Colors[EGDC_3D_HIGH_LIGHT]      = video::SColor(101,255,255,255);

 		Colors[EGDC_3D_LIGHT]           = video::SColor(101,210,210,210);

 		Colors[EGDC_ACTIVE_BORDER]      = video::SColor(101,16,14,115);

diff --git a/src/gui/guiTable.cpp b/src/gui/guiTable.cpp
index c705e17fb..cab2e19fd 100644
--- a/src/gui/guiTable.cpp
+++ b/src/gui/guiTable.cpp
@@ -56,7 +56,7 @@ GUITable::GUITable(gui::IGUIEnvironment *env,
 	m_font = skin->getFont();
 	if (m_font) {
 		m_font->grab();
-		m_rowheight = m_font->getDimension(L"A").Height + 4;
+		m_rowheight = m_font->getDimension(L"Ay").Height + 4;
 		m_rowheight = MYMAX(m_rowheight, 1);
 	}
 
@@ -586,6 +586,31 @@ void GUITable::setSelected(s32 index)
 	}
 }
 
+void GUITable::setOverrideFont(IGUIFont *font)
+{
+	if (m_font == font)
+		return;
+
+	if (font == nullptr)
+		font = Environment->getSkin()->getFont();
+
+	if (m_font)
+		m_font->drop();
+
+	m_font = font;
+	m_font->grab();
+
+	m_rowheight = m_font->getDimension(L"Ay").Height + 4;
+	m_rowheight = MYMAX(m_rowheight, 1);
+
+	updateScrollBar();
+}
+
+IGUIFont *GUITable::getOverrideFont() const
+{
+	return m_font;
+}
+
 GUITable::DynamicData GUITable::getDynamicData() const
 {
 	DynamicData dyndata;
diff --git a/src/gui/guiTable.h b/src/gui/guiTable.h
index 11093ea72..76a0e94d0 100644
--- a/src/gui/guiTable.h
+++ b/src/gui/guiTable.h
@@ -123,6 +123,12 @@ public:
 	// Autoscroll to make the selected row fully visible
 	void setSelected(s32 index);
 
+	//! Sets another skin independent font. If this is set to zero, the button uses the font of the skin.
+	virtual void setOverrideFont(gui::IGUIFont *font = nullptr);
+
+	//! Gets the override font (if any)
+	virtual gui::IGUIFont *getOverrideFont() const;
+
 	/* Get selection, scroll position and opened (sub)trees */
 	DynamicData getDynamicData() const;
 
diff --git a/src/gui/intlGUIEditBox.cpp b/src/gui/intlGUIEditBox.cpp
index 10395423c..8be63fd6f 100644
--- a/src/gui/intlGUIEditBox.cpp
+++ b/src/gui/intlGUIEditBox.cpp
@@ -1165,7 +1165,7 @@ void intlGUIEditBox::breakText()
 	s32 lastLineStart = 0;
 	s32 size = Text.size();
 	s32 length = 0;
-	s32 elWidth = RelativeRect.getWidth() - 6;
+	s32 elWidth = RelativeRect.getWidth() - m_scrollbar_width - 10;
 	wchar_t c;
 
 	for (s32 i=0; i<size; ++i)
@@ -1478,8 +1478,6 @@ void intlGUIEditBox::createVScrollBar()
 		}
 	}
 
-	RelativeRect.LowerRightCorner.X -= m_scrollbar_width + 4;
-
 	irr::core::rect<s32> scrollbarrect = FrameRect;
 	scrollbarrect.UpperLeftCorner.X += FrameRect.getWidth() - m_scrollbar_width;
 	m_vscrollbar = new GUIScrollBar(Environment, getParent(), -1,
diff --git a/src/httpfetch.cpp b/src/httpfetch.cpp
index 326b5052f..65202ce3e 100644
--- a/src/httpfetch.cpp
+++ b/src/httpfetch.cpp
@@ -294,13 +294,11 @@ HTTPFetchOngoing::HTTPFetchOngoing(const HTTPFetchRequest &request_,
 		curl_easy_setopt(curl, CURLOPT_WRITEDATA, &oss);
 	}
 
-	// Set POST (or GET) data
-	if (request.post_fields.empty() && request.post_data.empty()) {
-		curl_easy_setopt(curl, CURLOPT_HTTPGET, 1);
-	} else if (request.multipart) {
+	// Set data from fields or raw_data
+	if (request.multipart) {
 		curl_httppost *last = NULL;
-		for (StringMap::iterator it = request.post_fields.begin();
-				it != request.post_fields.end(); ++it) {
+		for (StringMap::iterator it = request.fields.begin();
+				it != request.fields.end(); ++it) {
 			curl_formadd(&post, &last,
 					CURLFORM_NAMELENGTH, it->first.size(),
 					CURLFORM_PTRNAME, it->first.c_str(),
@@ -311,28 +309,42 @@ HTTPFetchOngoing::HTTPFetchOngoing(const HTTPFetchRequest &request_,
 		curl_easy_setopt(curl, CURLOPT_HTTPPOST, post);
 		// request.post_fields must now *never* be
 		// modified until CURLOPT_HTTPPOST is cleared
-	} else if (request.post_data.empty()) {
-		curl_easy_setopt(curl, CURLOPT_POST, 1);
-		std::string str;
-		for (auto &post_field : request.post_fields) {
-			if (!str.empty())
-				str += "&";
-			str += urlencode(post_field.first);
-			str += "=";
-			str += urlencode(post_field.second);
-		}
-		curl_easy_setopt(curl, CURLOPT_POSTFIELDSIZE,
-				str.size());
-		curl_easy_setopt(curl, CURLOPT_COPYPOSTFIELDS,
-				str.c_str());
 	} else {
-		curl_easy_setopt(curl, CURLOPT_POST, 1);
-		curl_easy_setopt(curl, CURLOPT_POSTFIELDSIZE,
-				request.post_data.size());
-		curl_easy_setopt(curl, CURLOPT_POSTFIELDS,
-				request.post_data.c_str());
-		// request.post_data must now *never* be
-		// modified until CURLOPT_POSTFIELDS is cleared
+		switch (request.method) {
+		case HTTP_GET:
+			curl_easy_setopt(curl, CURLOPT_HTTPGET, 1);
+			break;
+		case HTTP_POST:
+			curl_easy_setopt(curl, CURLOPT_POST, 1);
+			break;
+		case HTTP_PUT:
+			curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "PUT");
+			break;
+		case HTTP_DELETE:
+			curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "DELETE");
+			break;
+		}
+		if (request.method != HTTP_GET) {
+			if (!request.raw_data.empty()) {
+				curl_easy_setopt(curl, CURLOPT_POSTFIELDSIZE,
+						request.raw_data.size());
+				curl_easy_setopt(curl, CURLOPT_POSTFIELDS,
+						request.raw_data.c_str());
+			} else if (!request.fields.empty()) {
+				std::string str;
+				for (auto &field : request.fields) {
+					if (!str.empty())
+						str += "&";
+					str += urlencode(field.first);
+					str += "=";
+					str += urlencode(field.second);
+				}
+				curl_easy_setopt(curl, CURLOPT_POSTFIELDSIZE,
+						str.size());
+				curl_easy_setopt(curl, CURLOPT_COPYPOSTFIELDS,
+						str.c_str());
+			}
+		}
 	}
 	// Set additional HTTP headers
 	for (const std::string &extra_header : request.extra_headers) {
diff --git a/src/httpfetch.h b/src/httpfetch.h
index ae8b5afb5..3b9f17f0a 100644
--- a/src/httpfetch.h
+++ b/src/httpfetch.h
@@ -28,6 +28,15 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #define HTTPFETCH_DISCARD 0
 #define HTTPFETCH_SYNC 1
 
+//  Methods
+enum HttpMethod : u8
+{
+	HTTP_GET,
+	HTTP_POST,
+	HTTP_PUT,
+	HTTP_DELETE,
+};
+
 struct HTTPFetchRequest
 {
 	std::string url = "";
@@ -50,12 +59,15 @@ struct HTTPFetchRequest
 	// application/x-www-form-urlencoded.  POST-only.
 	bool multipart = false;
 
-	// POST fields.  Fields are escaped properly.
-	// If this is empty a GET request is done instead.
-	StringMap post_fields;
+	//  The Method to use default = GET
+	//  Avaible methods GET, POST, PUT, DELETE
+	HttpMethod method = HTTP_GET;
+
+	// Fields of the request
+	StringMap fields;
 
-	// Raw POST data, overrides post_fields.
-	std::string post_data;
+	// Raw data of the request overrides fields
+	std::string raw_data;
 
 	// If not empty, should contain entries such as "Accept: text/html"
 	std::vector<std::string> extra_headers;
diff --git a/src/hud.cpp b/src/hud.cpp
index 3079b5cd8..1791e04df 100644
--- a/src/hud.cpp
+++ b/src/hud.cpp
@@ -28,6 +28,8 @@ const struct EnumString es_HudElementType[] =
 	{HUD_ELEM_INVENTORY, "inventory"},
 	{HUD_ELEM_WAYPOINT,  "waypoint"},
 	{HUD_ELEM_IMAGE_WAYPOINT, "image_waypoint"},
+	{HUD_ELEM_COMPASS,   "compass"},
+	{HUD_ELEM_MINIMAP,   "minimap"},
 	{0, NULL},
 };
 
@@ -40,6 +42,7 @@ const struct EnumString es_HudElementStat[] =
 	{HUD_STAT_TEXT,   "text"},
 	{HUD_STAT_NUMBER, "number"},
 	{HUD_STAT_ITEM,   "item"},
+	{HUD_STAT_ITEM,   "precision"},
 	{HUD_STAT_DIR,    "direction"},
 	{HUD_STAT_ALIGN,  "alignment"},
 	{HUD_STAT_OFFSET, "offset"},
diff --git a/src/hud.h b/src/hud.h
index e015baec1..a0613ae98 100644
--- a/src/hud.h
+++ b/src/hud.h
@@ -51,7 +51,6 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #define HUD_HOTBAR_ITEMCOUNT_DEFAULT 8
 #define HUD_HOTBAR_ITEMCOUNT_MAX     32
 
-
 #define HOTBAR_IMAGE_SIZE 48
 
 enum HudElementType {
@@ -60,7 +59,9 @@ enum HudElementType {
 	HUD_ELEM_STATBAR   = 2,
 	HUD_ELEM_INVENTORY = 3,
 	HUD_ELEM_WAYPOINT  = 4,
-	HUD_ELEM_IMAGE_WAYPOINT = 5
+	HUD_ELEM_IMAGE_WAYPOINT = 5,
+	HUD_ELEM_COMPASS   = 6,
+	HUD_ELEM_MINIMAP   = 7
 };
 
 enum HudElementStat {
@@ -79,6 +80,13 @@ enum HudElementStat {
 	HUD_STAT_TEXT2,
 };
 
+enum HudCompassDir {
+	HUD_COMPASS_ROTATE = 0,
+	HUD_COMPASS_ROTATE_REVERSE,
+	HUD_COMPASS_TRANSLATE,
+	HUD_COMPASS_TRANSLATE_REVERSE,
+};
+
 struct HudElement {
 	HudElementType type;
 	v2f pos;
@@ -100,3 +108,12 @@ extern const EnumString es_HudElementType[];
 extern const EnumString es_HudElementStat[];
 extern const EnumString es_HudBuiltinElement[];
 
+// Minimap stuff
+
+enum MinimapType {
+	MINIMAP_TYPE_OFF,
+	MINIMAP_TYPE_SURFACE,
+	MINIMAP_TYPE_RADAR,
+	MINIMAP_TYPE_TEXTURE,
+};
+
diff --git a/src/inventory.cpp b/src/inventory.cpp
index 349ee503d..1ef9b13cd 100644
--- a/src/inventory.cpp
+++ b/src/inventory.cpp
@@ -258,6 +258,20 @@ std::string ItemStack::getDescription(IItemDefManager *itemdef) const
 	return desc.empty() ? name : desc;
 }
 
+std::string ItemStack::getShortDescription(IItemDefManager *itemdef) const
+{
+	std::string desc = metadata.getString("short_description");
+	if (desc.empty())
+		desc = getDefinition(itemdef).short_description;
+	if (!desc.empty())
+		return desc;
+	// no short_description because of old server version or modified builtin
+	// return first line of description
+	std::stringstream sstr(getDescription(itemdef));
+	std::getline(sstr, desc, '\n');
+	return desc;
+}
+
 
 ItemStack ItemStack::addItem(ItemStack newitem, IItemDefManager *itemdef)
 {
@@ -732,17 +746,17 @@ void InventoryList::moveItemSomewhere(u32 i, InventoryList *dest, u32 count)
 u32 InventoryList::moveItem(u32 i, InventoryList *dest, u32 dest_i,
 		u32 count, bool swap_if_needed, bool *did_swap)
 {
-	if(this == dest && i == dest_i)
+	if (this == dest && i == dest_i)
 		return count;
 
 	// Take item from source list
 	ItemStack item1;
-	if(count == 0)
+	if (count == 0)
 		item1 = changeItem(i, ItemStack());
 	else
 		item1 = takeItem(i, count);
 
-	if(item1.empty())
+	if (item1.empty())
 		return 0;
 
 	// Try to add the item to destination list
@@ -750,8 +764,7 @@ u32 InventoryList::moveItem(u32 i, InventoryList *dest, u32 dest_i,
 	item1 = dest->addItem(dest_i, item1);
 
 	// If something is returned, the item was not fully added
-	if(!item1.empty())
-	{
+	if (!item1.empty()) {
 		// If olditem is returned, nothing was added.
 		bool nothing_added = (item1.count == oldcount);
 
diff --git a/src/inventory.h b/src/inventory.h
index 67a7859ed..f36bc57cf 100644
--- a/src/inventory.h
+++ b/src/inventory.h
@@ -49,6 +49,7 @@ struct ItemStack
 	std::string getItemString(bool include_meta = true) const;
 	// Returns the tooltip
 	std::string getDescription(IItemDefManager *itemdef) const;
+	std::string getShortDescription(IItemDefManager *itemdef) const;
 
 	/*
 		Quantity methods
diff --git a/src/inventorymanager.cpp b/src/inventorymanager.cpp
index b6f464901..635bd2e4b 100644
--- a/src/inventorymanager.cpp
+++ b/src/inventorymanager.cpp
@@ -154,6 +154,93 @@ IMoveAction::IMoveAction(std::istream &is, bool somewhere) :
 	}
 }
 
+void IMoveAction::swapDirections()
+{
+	std::swap(from_inv, to_inv);
+	std::swap(from_list, to_list);
+	std::swap(from_i, to_i);
+}
+
+void IMoveAction::onPutAndOnTake(const ItemStack &src_item, ServerActiveObject *player) const
+{
+	ServerScripting *sa = PLAYER_TO_SA(player);
+	if (to_inv.type == InventoryLocation::DETACHED)
+		sa->detached_inventory_OnPut(*this, src_item, player);
+	else if (to_inv.type == InventoryLocation::NODEMETA)
+		sa->nodemeta_inventory_OnPut(*this, src_item, player);
+	else if (to_inv.type == InventoryLocation::PLAYER)
+		sa->player_inventory_OnPut(*this, src_item, player);
+	else
+		assert(false);
+	
+	if (from_inv.type == InventoryLocation::DETACHED)
+		sa->detached_inventory_OnTake(*this, src_item, player);
+	else if (from_inv.type == InventoryLocation::NODEMETA)
+		sa->nodemeta_inventory_OnTake(*this, src_item, player);
+	else if (from_inv.type == InventoryLocation::PLAYER)
+		sa->player_inventory_OnTake(*this, src_item, player);
+	else
+		assert(false);
+}
+
+void IMoveAction::onMove(int count, ServerActiveObject *player) const
+{
+	ServerScripting *sa = PLAYER_TO_SA(player);
+	if (from_inv.type == InventoryLocation::DETACHED)
+		sa->detached_inventory_OnMove(*this, count, player);
+	else if (from_inv.type == InventoryLocation::NODEMETA)
+		sa->nodemeta_inventory_OnMove(*this, count, player);
+	else if (from_inv.type == InventoryLocation::PLAYER)
+		sa->player_inventory_OnMove(*this, count, player);
+	else
+		assert(false);
+}
+
+int IMoveAction::allowPut(const ItemStack &dst_item, ServerActiveObject *player) const
+{
+	ServerScripting *sa = PLAYER_TO_SA(player);
+	int dst_can_put_count = 0xffff;
+	if (to_inv.type == InventoryLocation::DETACHED)
+		dst_can_put_count = sa->detached_inventory_AllowPut(*this, dst_item, player);
+	else if (to_inv.type == InventoryLocation::NODEMETA)
+		dst_can_put_count = sa->nodemeta_inventory_AllowPut(*this, dst_item, player);
+	else if (to_inv.type == InventoryLocation::PLAYER)
+		dst_can_put_count = sa->player_inventory_AllowPut(*this, dst_item, player);
+	else
+		assert(false);
+	return dst_can_put_count;
+}
+
+int IMoveAction::allowTake(const ItemStack &src_item, ServerActiveObject *player) const
+{
+	ServerScripting *sa = PLAYER_TO_SA(player);
+	int src_can_take_count = 0xffff;
+	if (from_inv.type == InventoryLocation::DETACHED)
+		src_can_take_count = sa->detached_inventory_AllowTake(*this, src_item, player);
+	else if (from_inv.type == InventoryLocation::NODEMETA)
+		src_can_take_count = sa->nodemeta_inventory_AllowTake(*this, src_item, player);
+	else if (from_inv.type == InventoryLocation::PLAYER)
+		src_can_take_count = sa->player_inventory_AllowTake(*this, src_item, player);
+	else
+		assert(false);
+	return src_can_take_count;
+}
+
+int IMoveAction::allowMove(int try_take_count, ServerActiveObject *player) const
+{
+	ServerScripting *sa = PLAYER_TO_SA(player);
+	int src_can_take_count = 0xffff;
+	if (from_inv.type == InventoryLocation::DETACHED)
+		src_can_take_count = sa->detached_inventory_AllowMove(*this, try_take_count, player);
+	else if (from_inv.type == InventoryLocation::NODEMETA)
+		src_can_take_count = sa->nodemeta_inventory_AllowMove(*this, try_take_count, player);
+	else if (from_inv.type == InventoryLocation::PLAYER)
+		src_can_take_count = sa->player_inventory_AllowMove(*this, try_take_count, player);
+	else
+		assert(false);
+	return src_can_take_count;
+}
+
 void IMoveAction::apply(InventoryManager *mgr, ServerActiveObject *player, IGameDef *gamedef)
 {
 	Inventory *inv_from = mgr->getInventory(from_inv);
@@ -251,93 +338,80 @@ void IMoveAction::apply(InventoryManager *mgr, ServerActiveObject *player, IGame
 		Collect information of endpoints
 	*/
 
-	int try_take_count = count;
-	if (try_take_count == 0)
-		try_take_count = list_from->getItem(from_i).count;
+	ItemStack src_item = list_from->getItem(from_i);
+	if (count > 0)
+		src_item.count = count;
+	if (src_item.empty())
+		return;
 
 	int src_can_take_count = 0xffff;
 	int dst_can_put_count = 0xffff;
 
-	/* Query detached inventories */
+	// this is needed for swapping items inside one inventory to work
+	ItemStack restitem;
+	bool allow_swap = !list_to->itemFits(to_i, src_item, &restitem)
+		&& restitem.count == src_item.count
+		&& !caused_by_move_somewhere;
 
-	// Move occurs in the same detached inventory
-	if (from_inv.type == InventoryLocation::DETACHED &&
-			from_inv == to_inv) {
-		src_can_take_count = PLAYER_TO_SA(player)->detached_inventory_AllowMove(
-			*this, try_take_count, player);
-		dst_can_put_count = src_can_take_count;
-	} else {
-		// Destination is detached
-		if (to_inv.type == InventoryLocation::DETACHED) {
-			ItemStack src_item = list_from->getItem(from_i);
-			src_item.count = try_take_count;
-			dst_can_put_count = PLAYER_TO_SA(player)->detached_inventory_AllowPut(
-				*this, src_item, player);
-		}
-		// Source is detached
-		if (from_inv.type == InventoryLocation::DETACHED) {
-			ItemStack src_item = list_from->getItem(from_i);
-			src_item.count = try_take_count;
-			src_can_take_count = PLAYER_TO_SA(player)->detached_inventory_AllowTake(
-				*this, src_item, player);
-		}
-	}
-
-	/* Query node metadata inventories */
+	// Shift-click: Cannot fill this stack, proceed with next slot
+	if (caused_by_move_somewhere && restitem.count == src_item.count)
+		return;
 
-	// Both endpoints are nodemeta
-	// Move occurs in the same nodemeta inventory
-	if (from_inv.type == InventoryLocation::NODEMETA &&
-			from_inv == to_inv) {
-		src_can_take_count = PLAYER_TO_SA(player)->nodemeta_inventory_AllowMove(
-			*this, try_take_count, player);
-		dst_can_put_count = src_can_take_count;
-	} else {
-		// Destination is nodemeta
-		if (to_inv.type == InventoryLocation::NODEMETA) {
-			ItemStack src_item = list_from->getItem(from_i);
-			src_item.count = try_take_count;
-			dst_can_put_count = PLAYER_TO_SA(player)->nodemeta_inventory_AllowPut(
-				*this, src_item, player);
+	if (allow_swap) {
+		// Swap will affect the entire stack if it can performed.
+		src_item = list_from->getItem(from_i);
+		count = src_item.count;
+	}
+
+	if (from_inv == to_inv) {
+		// Move action within the same inventory
+		src_can_take_count = allowMove(src_item.count, player);
+
+		bool swap_expected = allow_swap;
+		allow_swap = allow_swap
+			&& (src_can_take_count == -1 || src_can_take_count >= src_item.count);
+		if (allow_swap) {
+			int try_put_count = list_to->getItem(to_i).count;
+			swapDirections();
+			dst_can_put_count = allowMove(try_put_count, player);
+			allow_swap = allow_swap
+				&& (dst_can_put_count == -1 || dst_can_put_count >= try_put_count);
+			swapDirections();
+		} else {
+			dst_can_put_count = src_can_take_count;
 		}
-		// Source is nodemeta
-		if (from_inv.type == InventoryLocation::NODEMETA) {
-			ItemStack src_item = list_from->getItem(from_i);
-			src_item.count = try_take_count;
-			src_can_take_count = PLAYER_TO_SA(player)->nodemeta_inventory_AllowTake(
-				*this, src_item, player);
-		}
-	}
-
-	// Query player inventories
-
-	// Move occurs in the same player inventory
-	if (from_inv.type == InventoryLocation::PLAYER &&
-			from_inv == to_inv) {
-		src_can_take_count = PLAYER_TO_SA(player)->player_inventory_AllowMove(
-			*this, try_take_count, player);
-		dst_can_put_count = src_can_take_count;
+		if (swap_expected != allow_swap)
+			src_can_take_count = dst_can_put_count = 0;
 	} else {
-		// Destination is a player
-		if (to_inv.type == InventoryLocation::PLAYER) {
-			ItemStack src_item = list_from->getItem(from_i);
-			src_item.count = try_take_count;
-			dst_can_put_count = PLAYER_TO_SA(player)->player_inventory_AllowPut(
-				*this, src_item, player);
-		}
-		// Source is a player
-		if (from_inv.type == InventoryLocation::PLAYER) {
-			ItemStack src_item = list_from->getItem(from_i);
-			src_item.count = try_take_count;
-			src_can_take_count = PLAYER_TO_SA(player)->player_inventory_AllowTake(
-				*this, src_item, player);
+		// Take from one inventory, put into another
+		dst_can_put_count = allowPut(src_item, player);
+		src_can_take_count = allowTake(src_item, player);
+		
+		bool swap_expected = allow_swap;
+		allow_swap = allow_swap
+			&& (src_can_take_count == -1 || src_can_take_count >= src_item.count)
+			&& (dst_can_put_count == -1 || dst_can_put_count >= src_item.count);
+		// A swap is expected, which means that we have to
+		// run the "allow" callbacks a second time with swapped inventories
+		if (allow_swap) {
+			ItemStack dst_item = list_to->getItem(to_i);
+			swapDirections();
+
+			int src_can_take = allowPut(dst_item, player);
+			int dst_can_put = allowTake(dst_item, player);
+			allow_swap = allow_swap
+				&& (src_can_take == -1 || src_can_take >= dst_item.count)
+				&& (dst_can_put == -1 || dst_can_put >= dst_item.count);
+			swapDirections();
 		}
+		if (swap_expected != allow_swap)
+			src_can_take_count = dst_can_put_count = 0;
 	}
 
 	int old_count = count;
 
 	/* Modify count according to collected data */
-	count = try_take_count;
+	count = src_item.count;
 	if (src_can_take_count != -1 && count > src_can_take_count)
 		count = src_can_take_count;
 	if (dst_can_put_count != -1 && count > dst_can_put_count)
@@ -367,7 +441,7 @@ void IMoveAction::apply(InventoryManager *mgr, ServerActiveObject *player, IGame
 		return;
 	}
 
-	ItemStack src_item = list_from->getItem(from_i);
+	src_item = list_from->getItem(from_i);
 	src_item.count = count;
 	ItemStack from_stack_was = list_from->getItem(from_i);
 	ItemStack to_stack_was = list_to->getItem(to_i);
@@ -380,7 +454,8 @@ void IMoveAction::apply(InventoryManager *mgr, ServerActiveObject *player, IGame
 	*/
 	bool did_swap = false;
 	move_count = list_from->moveItem(from_i,
-		list_to, to_i, count, !caused_by_move_somewhere, &did_swap);
+		list_to, to_i, count, allow_swap, &did_swap);
+	assert(allow_swap == did_swap);
 
 	// If source is infinite, reset it's stack
 	if (src_can_take_count == -1) {
@@ -471,69 +546,29 @@ void IMoveAction::apply(InventoryManager *mgr, ServerActiveObject *player, IGame
 		Report move to endpoints
 	*/
 
-	/* Detached inventories */
-
-	// Both endpoints are same detached
-	if (from_inv.type == InventoryLocation::DETACHED &&
-			from_inv == to_inv) {
-		PLAYER_TO_SA(player)->detached_inventory_OnMove(
-				*this, count, player);
-	} else {
-		// Destination is detached
-		if (to_inv.type == InventoryLocation::DETACHED) {
-			PLAYER_TO_SA(player)->detached_inventory_OnPut(
-				*this, src_item, player);
-		}
-		// Source is detached
-		if (from_inv.type == InventoryLocation::DETACHED) {
-			PLAYER_TO_SA(player)->detached_inventory_OnTake(
-				*this, src_item, player);
+	// Source = destination => move
+	if (from_inv == to_inv) {
+		onMove(count, player);
+		if (did_swap) {
+			// Item is now placed in source list
+			src_item = list_from->getItem(from_i);
+			swapDirections();
+			onMove(src_item.count, player);
+			swapDirections();
 		}
-	}
-
-	/* Node metadata inventories */
-
-	// Both endpoints are same nodemeta
-	if (from_inv.type == InventoryLocation::NODEMETA &&
-			from_inv == to_inv) {
-		PLAYER_TO_SA(player)->nodemeta_inventory_OnMove(
-			*this, count, player);
-	} else {
-		// Destination is nodemeta
-		if (to_inv.type == InventoryLocation::NODEMETA) {
-			PLAYER_TO_SA(player)->nodemeta_inventory_OnPut(
-				*this, src_item, player);
-		}
-		// Source is nodemeta
-		if (from_inv.type == InventoryLocation::NODEMETA) {
-			PLAYER_TO_SA(player)->nodemeta_inventory_OnTake(
-				*this, src_item, player);
-		}
-	}
-
-	// Player inventories
-
-	// Both endpoints are same player inventory
-	if (from_inv.type == InventoryLocation::PLAYER &&
-			from_inv == to_inv) {
-		PLAYER_TO_SA(player)->player_inventory_OnMove(
-			*this, count, player);
+		mgr->setInventoryModified(from_inv);
 	} else {
-		// Destination is player inventory
-		if (to_inv.type == InventoryLocation::PLAYER) {
-			PLAYER_TO_SA(player)->player_inventory_OnPut(
-				*this, src_item, player);
+		onPutAndOnTake(src_item, player);
+		if (did_swap) {
+			// Item is now placed in source list
+			src_item = list_from->getItem(from_i);
+			swapDirections();
+			onPutAndOnTake(src_item, player);
+			swapDirections();
 		}
-		// Source is player inventory
-		if (from_inv.type == InventoryLocation::PLAYER) {
-			PLAYER_TO_SA(player)->player_inventory_OnTake(
-				*this, src_item, player);
-		}
-	}
-
-	mgr->setInventoryModified(from_inv);
-	if (inv_from != inv_to)
 		mgr->setInventoryModified(to_inv);
+		mgr->setInventoryModified(from_inv);
+	}
 }
 
 void IMoveAction::clientApply(InventoryManager *mgr, IGameDef *gamedef)
diff --git a/src/inventorymanager.h b/src/inventorymanager.h
index 69bf30169..4ad5d3f49 100644
--- a/src/inventorymanager.h
+++ b/src/inventorymanager.h
@@ -183,6 +183,18 @@ struct IMoveAction : public InventoryAction, public MoveAction
 	void apply(InventoryManager *mgr, ServerActiveObject *player, IGameDef *gamedef);
 
 	void clientApply(InventoryManager *mgr, IGameDef *gamedef);
+
+	void swapDirections();
+
+	void onPutAndOnTake(const ItemStack &src_item, ServerActiveObject *player) const;
+
+	void onMove(int count, ServerActiveObject *player) const;
+
+	int allowPut(const ItemStack &dst_item, ServerActiveObject *player) const;
+
+	int allowTake(const ItemStack &src_item, ServerActiveObject *player) const;
+
+	int allowMove(int try_take_count, ServerActiveObject *player) const;
 };
 
 struct IDropAction : public InventoryAction, public MoveAction
diff --git a/src/itemdef.cpp b/src/itemdef.cpp
index 8e0492827..5fb1e4c47 100644
--- a/src/itemdef.cpp
+++ b/src/itemdef.cpp
@@ -62,6 +62,7 @@ ItemDefinition& ItemDefinition::operator=(const ItemDefinition &def)
 	type = def.type;
 	name = def.name;
 	description = def.description;
+	short_description = def.short_description;
 	inventory_image = def.inventory_image;
 	inventory_overlay = def.inventory_overlay;
 	wield_image = def.wield_image;
@@ -102,6 +103,7 @@ void ItemDefinition::reset()
 	type = ITEM_NONE;
 	name = "";
 	description = "";
+	short_description = "";
 	inventory_image = "";
 	inventory_overlay = "";
 	wield_image = "";
@@ -128,10 +130,10 @@ void ItemDefinition::serialize(std::ostream &os, u16 protocol_version) const
 	u8 version = 6;
 	writeU8(os, version);
 	writeU8(os, type);
-	os << serializeString(name);
-	os << serializeString(description);
-	os << serializeString(inventory_image);
-	os << serializeString(wield_image);
+	os << serializeString16(name);
+	os << serializeString16(description);
+	os << serializeString16(inventory_image);
+	os << serializeString16(wield_image);
 	writeV3F32(os, wield_scale);
 	writeS16(os, stack_max);
 	writeU8(os, usable);
@@ -143,25 +145,27 @@ void ItemDefinition::serialize(std::ostream &os, u16 protocol_version) const
 		tool_capabilities->serialize(tmp_os, protocol_version);
 		tool_capabilities_s = tmp_os.str();
 	}
-	os << serializeString(tool_capabilities_s);
+	os << serializeString16(tool_capabilities_s);
 
 	writeU16(os, groups.size());
 	for (const auto &group : groups) {
-		os << serializeString(group.first);
+		os << serializeString16(group.first);
 		writeS16(os, group.second);
 	}
 
-	os << serializeString(node_placement_prediction);
+	os << serializeString16(node_placement_prediction);
 
 	// Version from ContentFeatures::serialize to keep in sync
 	sound_place.serialize(os, CONTENTFEATURES_VERSION);
 	sound_place_failed.serialize(os, CONTENTFEATURES_VERSION);
 
 	writeF32(os, range);
-	os << serializeString(palette_image);
+	os << serializeString16(palette_image);
 	writeARGB8(os, color);
-	os << serializeString(inventory_overlay);
-	os << serializeString(wield_overlay);
+	os << serializeString16(inventory_overlay);
+	os << serializeString16(wield_overlay);
+
+	os << serializeString16(short_description);
 }
 
 void ItemDefinition::deSerialize(std::istream &is)
@@ -175,16 +179,16 @@ void ItemDefinition::deSerialize(std::istream &is)
 		throw SerializationError("unsupported ItemDefinition version");
 
 	type = (enum ItemType)readU8(is);
-	name = deSerializeString(is);
-	description = deSerializeString(is);
-	inventory_image = deSerializeString(is);
-	wield_image = deSerializeString(is);
+	name = deSerializeString16(is);
+	description = deSerializeString16(is);
+	inventory_image = deSerializeString16(is);
+	wield_image = deSerializeString16(is);
 	wield_scale = readV3F32(is);
 	stack_max = readS16(is);
 	usable = readU8(is);
 	liquids_pointable = readU8(is);
 
-	std::string tool_capabilities_s = deSerializeString(is);
+	std::string tool_capabilities_s = deSerializeString16(is);
 	if (!tool_capabilities_s.empty()) {
 		std::istringstream tmp_is(tool_capabilities_s, std::ios::binary);
 		tool_capabilities = new ToolCapabilities;
@@ -194,27 +198,28 @@ void ItemDefinition::deSerialize(std::istream &is)
 	groups.clear();
 	u32 groups_size = readU16(is);
 	for(u32 i=0; i<groups_size; i++){
-		std::string name = deSerializeString(is);
+		std::string name = deSerializeString16(is);
 		int value = readS16(is);
 		groups[name] = value;
 	}
 
-	node_placement_prediction = deSerializeString(is);
+	node_placement_prediction = deSerializeString16(is);
 
 	// Version from ContentFeatures::serialize to keep in sync
 	sound_place.deSerialize(is, CONTENTFEATURES_VERSION);
 	sound_place_failed.deSerialize(is, CONTENTFEATURES_VERSION);
 
 	range = readF32(is);
-	palette_image = deSerializeString(is);
+	palette_image = deSerializeString16(is);
 	color = readARGB8(is);
-	inventory_overlay = deSerializeString(is);
-	wield_overlay = deSerializeString(is);
+	inventory_overlay = deSerializeString16(is);
+	wield_overlay = deSerializeString16(is);
 
 	// If you add anything here, insert it primarily inside the try-catch
 	// block to not need to increase the version.
-	//try {
-	//} catch(SerializationError &e) {};
+	try {
+		short_description = deSerializeString16(is);
+	} catch(SerializationError &e) {};
 }
 
 
@@ -521,14 +526,14 @@ public:
 			// Serialize ItemDefinition and write wrapped in a string
 			std::ostringstream tmp_os(std::ios::binary);
 			def->serialize(tmp_os, protocol_version);
-			os << serializeString(tmp_os.str());
+			os << serializeString16(tmp_os.str());
 		}
 
 		writeU16(os, m_aliases.size());
 
 		for (const auto &it : m_aliases) {
-			os << serializeString(it.first);
-			os << serializeString(it.second);
+			os << serializeString16(it.first);
+			os << serializeString16(it.second);
 		}
 	}
 	void deSerialize(std::istream &is)
@@ -543,7 +548,7 @@ public:
 		for(u16 i=0; i<count; i++)
 		{
 			// Deserialize a string and grab an ItemDefinition from it
-			std::istringstream tmp_is(deSerializeString(is), std::ios::binary);
+			std::istringstream tmp_is(deSerializeString16(is), std::ios::binary);
 			ItemDefinition def;
 			def.deSerialize(tmp_is);
 			// Register
@@ -552,8 +557,8 @@ public:
 		u16 num_aliases = readU16(is);
 		for(u16 i=0; i<num_aliases; i++)
 		{
-			std::string name = deSerializeString(is);
-			std::string convert_to = deSerializeString(is);
+			std::string name = deSerializeString16(is);
+			std::string convert_to = deSerializeString16(is);
 			registerAlias(name, convert_to);
 		}
 	}
diff --git a/src/itemdef.h b/src/itemdef.h
index f47e6cbe7..ebf0d3527 100644
--- a/src/itemdef.h
+++ b/src/itemdef.h
@@ -56,6 +56,7 @@ struct ItemDefinition
 	ItemType type;
 	std::string name; // "" = hand
 	std::string description; // Shown in tooltip.
+	std::string short_description;
 
 	/*
 		Visual properties
diff --git a/src/light.cpp b/src/light.cpp
index 8196fedff..d5389b450 100644
--- a/src/light.cpp
+++ b/src/light.cpp
@@ -18,6 +18,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 */
 
 #include "light.h"
+#include <algorithm>
 #include <cmath>
 #include "util/numeric.h"
 #include "settings.h"
@@ -81,9 +82,11 @@ void set_light_table(float gamma)
 		// Strictly speaking, rangelim is not necessary here—if the implementation
 		// is conforming. But we don’t want problems in any case.
 		light_LUT[i] = rangelim((s32)(255.0f * brightness), 0, 255);
+
 		// Ensure light brightens with each level
-		if (i > 1 && light_LUT[i] <= light_LUT[i - 1])
-			light_LUT[i] = light_LUT[i - 1] + 1;
+		if (i > 0 && light_LUT[i] <= light_LUT[i - 1]) {
+			light_LUT[i] = std::min((u8)254, light_LUT[i - 1]) + 1;
+		}
 	}
 }
 
diff --git a/src/log.cpp b/src/log.cpp
index 54442c39b..3c61414e9 100644
--- a/src/log.cpp
+++ b/src/log.cpp
@@ -97,16 +97,7 @@ LogBuffer verbose_buf(g_logger, LL_VERBOSE);
 std::ostream *dout_con_ptr = &null_stream;
 std::ostream *derr_con_ptr = &verbosestream;
 
-// Server
-std::ostream *dout_server_ptr = &infostream;
-std::ostream *derr_server_ptr = &errorstream;
-
-#ifndef SERVER
-// Client
-std::ostream *dout_client_ptr = &infostream;
-std::ostream *derr_client_ptr = &errorstream;
-#endif
-
+// Common streams
 std::ostream rawstream(&raw_buf);
 std::ostream dstream(&none_buf);
 std::ostream errorstream(&error_buf);
diff --git a/src/log.h b/src/log.h
index 856d3479b..6ed6b1fb7 100644
--- a/src/log.h
+++ b/src/log.h
@@ -192,14 +192,8 @@ extern std::ostream null_stream;
 
 extern std::ostream *dout_con_ptr;
 extern std::ostream *derr_con_ptr;
-extern std::ostream *dout_server_ptr;
 extern std::ostream *derr_server_ptr;
 
-#ifndef SERVER
-extern std::ostream *dout_client_ptr;
-extern std::ostream *derr_client_ptr;
-#endif
-
 extern Logger g_logger;
 
 // Writes directly to all LL_NONE log outputs for g_logger with no prefix.
@@ -222,8 +216,4 @@ extern std::ostream dstream;
 
 #define dout_con (*dout_con_ptr)
 #define derr_con (*derr_con_ptr)
-#define dout_server (*dout_server_ptr)
 
-#ifndef SERVER
-	#define dout_client (*dout_client_ptr)
-#endif
diff --git a/src/map.cpp b/src/map.cpp
index b9ab7c066..6d53351ef 100644
--- a/src/map.cpp
+++ b/src/map.cpp
@@ -62,8 +62,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 	Map
 */
 
-Map::Map(std::ostream &dout, IGameDef *gamedef):
-	m_dout(dout),
+Map::Map(IGameDef *gamedef):
 	m_gamedef(gamedef),
 	m_nodedef(gamedef->ndef())
 {
@@ -140,6 +139,21 @@ MapBlock * Map::getBlockNoCreate(v3s16 p3d)
 	return block;
 }
 
+void Map::listAllLoadedBlocks(std::vector<v3s16> &dst)
+{
+	for (auto &sector_it : m_sectors) {
+		MapSector *sector = sector_it.second;
+
+		MapBlockVect blocks;
+		sector->getBlocks(blocks);
+
+		for (MapBlock *block : blocks) {
+			v3s16 p = block->getPos();
+			dst.push_back(p);
+		}
+	}
+}
+
 bool Map::isNodeUnderground(v3s16 p)
 {
 	v3s16 blockpos = getNodeBlockPos(p);
@@ -1201,7 +1215,7 @@ bool Map::isBlockOccluded(MapBlock *block, v3s16 cam_pos_nodes)
 */
 ServerMap::ServerMap(const std::string &savedir, IGameDef *gamedef,
 		EmergeManager *emerge, MetricsBackend *mb):
-	Map(dout_server, gamedef),
+	Map(gamedef),
 	settings_mgr(g_settings, savedir + DIR_DELIM + "map_meta.txt"),
 	m_emerge(emerge)
 {
@@ -1327,11 +1341,6 @@ u64 ServerMap::getSeed()
 	return getMapgenParams()->seed;
 }
 
-s16 ServerMap::getWaterLevel()
-{
-	return getMapgenParams()->water_level;
-}
-
 bool ServerMap::blockpos_over_mapgen_limit(v3s16 p)
 {
 	const s16 mapgen_limit_bp = rangelim(
@@ -1351,6 +1360,9 @@ bool ServerMap::initBlockMake(v3s16 blockpos, BlockMakeData *data)
 	v3s16 bpmin = EmergeManager::getContainingChunk(blockpos, csize);
 	v3s16 bpmax = bpmin + v3s16(1, 1, 1) * (csize - 1);
 
+	if (!m_chunks_in_progress.insert(bpmin).second)
+		return false;
+
 	bool enable_mapgen_debug_info = m_emerge->enable_mapgen_debug_info;
 	EMERGE_DBG_OUT("initBlockMake(): " PP(bpmin) " - " PP(bpmax));
 
@@ -1366,7 +1378,6 @@ bool ServerMap::initBlockMake(v3s16 blockpos, BlockMakeData *data)
 	data->seed = getSeed();
 	data->blockpos_min = bpmin;
 	data->blockpos_max = bpmax;
-	data->blockpos_requested = blockpos;
 	data->nodedef = m_nodedef;
 
 	/*
@@ -1488,6 +1499,7 @@ void ServerMap::finishBlockMake(BlockMakeData *data,
 		NOTE: Will be saved later.
 	*/
 	//save(MOD_STATE_WRITE_AT_UNLOAD);
+	m_chunks_in_progress.erase(bpmin);
 }
 
 MapSector *ServerMap::createSector(v2s16 p2d)
@@ -1732,59 +1744,6 @@ void ServerMap::updateVManip(v3s16 pos)
 	vm->m_is_dirty = true;
 }
 
-s16 ServerMap::findGroundLevel(v2s16 p2d)
-{
-#if 0
-	/*
-		Uh, just do something random...
-	*/
-	// Find existing map from top to down
-	s16 max=63;
-	s16 min=-64;
-	v3s16 p(p2d.X, max, p2d.Y);
-	for(; p.Y>min; p.Y--)
-	{
-		MapNode n = getNodeNoEx(p);
-		if(n.getContent() != CONTENT_IGNORE)
-			break;
-	}
-	if(p.Y == min)
-		goto plan_b;
-	// If this node is not air, go to plan b
-	if(getNodeNoEx(p).getContent() != CONTENT_AIR)
-		goto plan_b;
-	// Search existing walkable and return it
-	for(; p.Y>min; p.Y--)
-	{
-		MapNode n = getNodeNoEx(p);
-		if(content_walkable(n.d) && n.getContent() != CONTENT_IGNORE)
-			return p.Y;
-	}
-
-	// Move to plan b
-plan_b:
-#endif
-
-	/*
-		Determine from map generator noise functions
-	*/
-
-	s16 level = m_emerge->getGroundLevelAtPoint(p2d);
-	return level;
-
-	//double level = base_rock_level_2d(m_seed, p2d) + AVERAGE_MUD_AMOUNT;
-	//return (s16)level;
-}
-
-void ServerMap::createDirs(const std::string &path)
-{
-	if (!fs::CreateAllDirs(path)) {
-		m_dout<<"ServerMap: Failed to create directory "
-				<<"\""<<path<<"\""<<std::endl;
-		throw BaseException("ServerMap failed to create directory");
-	}
-}
-
 void ServerMap::save(ModifiedState save_level)
 {
 	if (!m_map_saving_enabled) {
@@ -1864,21 +1823,6 @@ void ServerMap::listAllLoadableBlocks(std::vector<v3s16> &dst)
 		dbase_ro->listAllLoadableBlocks(dst);
 }
 
-void ServerMap::listAllLoadedBlocks(std::vector<v3s16> &dst)
-{
-	for (auto &sector_it : m_sectors) {
-		MapSector *sector = sector_it.second;
-
-		MapBlockVect blocks;
-		sector->getBlocks(blocks);
-
-		for (MapBlock *block : blocks) {
-			v3s16 p = block->getPos();
-			dst.push_back(p);
-		}
-	}
-}
-
 MapDatabase *ServerMap::createDatabase(
 	const std::string &name,
 	const std::string &savedir,
diff --git a/src/map.h b/src/map.h
index 4d9847063..0b0213ca0 100644
--- a/src/map.h
+++ b/src/map.h
@@ -123,7 +123,7 @@ class Map /*: public NodeContainer*/
 {
 public:
 
-	Map(std::ostream &dout, IGameDef *gamedef);
+	Map(IGameDef *gamedef);
 	virtual ~Map();
 	DISABLE_CLASS_COPY(Map);
 
@@ -149,8 +149,6 @@ public:
 	MapSector * getSectorNoGenerateNoLock(v2s16 p2d);
 	// Same as the above (there exists no lock anymore)
 	MapSector * getSectorNoGenerate(v2s16 p2d);
-	// Gets an existing sector or creates an empty one
-	//MapSector * getSectorCreate(v2s16 p2d);
 
 	/*
 		This is overloaded by ClientMap and ServerMap to allow
@@ -162,7 +160,9 @@ public:
 	MapBlock * getBlockNoCreate(v3s16 p);
 	// Returns NULL if not found
 	MapBlock * getBlockNoCreateNoEx(v3s16 p);
-
+	
+	void listAllLoadedBlocks(std::vector<v3s16> &dst);
+	
 	/* Server overrides */
 	virtual MapBlock * emergeBlock(v3s16 p, bool create_blank=true)
 	{ return getBlockNoCreateNoEx(p); }
@@ -269,11 +269,6 @@ public:
 	void removeNodeTimer(v3s16 p);
 
 	/*
-		Misc.
-	*/
-	std::map<v2s16, MapSector*> *getSectorsPtr(){return &m_sectors;}
-
-	/*
 		Variables
 	*/
 
@@ -283,8 +278,6 @@ public:
 protected:
 	friend class LuaVoxelManip;
 
-	std::ostream &m_dout; // A bit deprecated, could be removed
-
 	IGameDef *m_gamedef;
 
 	std::set<MapEventReceiver*> m_event_receivers;
@@ -374,15 +367,6 @@ public:
 	*/
 	MapBlock *getBlockOrEmerge(v3s16 p3d);
 
-	// Helper for placing objects on ground level
-	s16 findGroundLevel(v2s16 p2d);
-
-	/*
-		Misc. helper functions for fiddling with directory and file
-		names when saving
-	*/
-	void createDirs(const std::string &path);
-
 	/*
 		Database functions
 	*/
@@ -394,7 +378,6 @@ public:
 
 	void save(ModifiedState save_level);
 	void listAllLoadableBlocks(std::vector<v3s16> &dst);
-	void listAllLoadedBlocks(std::vector<v3s16> &dst);
 
 	MapgenParams *getMapgenParams();
 
@@ -414,7 +397,6 @@ public:
 	bool isSavingEnabled(){ return m_map_saving_enabled; }
 
 	u64 getSeed();
-	s16 getWaterLevel();
 
 	/*!
 	 * Fixes lighting in one map block.
@@ -442,6 +424,7 @@ private:
 	// Chunks
 	core::map<v2s16, MapChunk*> m_chunks;
 #endif
+	std::set<v3s16> m_chunks_in_progress;
 
 	/*
 		Metadata is re-written on disk only if this is true.
diff --git a/src/map_settings_manager.cpp b/src/map_settings_manager.cpp
index 4f070e910..9c447b3d0 100644
--- a/src/map_settings_manager.cpp
+++ b/src/map_settings_manager.cpp
@@ -32,6 +32,10 @@ MapSettingsManager::MapSettingsManager(Settings *user_settings,
 	m_user_settings(user_settings)
 {
 	assert(m_user_settings != NULL);
+
+	Mapgen::setDefaultSettings(m_map_settings);
+	// This inherits the combined defaults provided by loadGameConfAndInitWorld.
+	m_map_settings->overrideDefaults(user_settings);
 }
 
 
@@ -179,20 +183,8 @@ MapgenParams *MapSettingsManager::makeMapgenParams()
 
 	params->mgtype = mgtype;
 
-	// Load the mapgen param defaults
-	/* FIXME: Why is it done like this? MapgenParams should just
-	 * set the defaults in its constructor instead. */
-	{
-		Settings default_settings;
-		Mapgen::setDefaultSettings(&default_settings);
-		params->MapgenParams::readParams(&default_settings);
-		params->readParams(&default_settings);
-	}
-
 	// Load the rest of the mapgen params from our active settings
-	params->MapgenParams::readParams(m_user_settings);
 	params->MapgenParams::readParams(m_map_settings);
-	params->readParams(m_user_settings);
 	params->readParams(m_map_settings);
 
 	// Hold onto our params
diff --git a/src/mapblock.cpp b/src/mapblock.cpp
index 5b755b7a6..8bfecd755 100644
--- a/src/mapblock.cpp
+++ b/src/mapblock.cpp
@@ -533,7 +533,7 @@ void MapBlock::deSerialize(std::istream &is, u8 version, bool disk)
 		// Timestamp
 		TRACESTREAM(<<"MapBlock::deSerialize "<<PP(getPos())
 				<<": Timestamp"<<std::endl);
-		setTimestamp(readU32(is));
+		setTimestampNoChangedFlag(readU32(is));
 		m_disk_timestamp = m_timestamp;
 
 		// Dynamically re-set ids based on node names
@@ -668,13 +668,13 @@ void MapBlock::deSerialize_pre22(std::istream &is, u8 version, bool disk)
 			// Ignore errors
 			try {
 				if (version <= 15) {
-					std::string data = deSerializeString(is);
+					std::string data = deSerializeString16(is);
 					std::istringstream iss(data, std::ios_base::binary);
 					content_nodemeta_deserialize_legacy(iss,
 						&m_node_metadata, &m_node_timers,
 						m_gamedef->idef());
 				} else {
-					//std::string data = deSerializeLongString(is);
+					//std::string data = deSerializeString32(is);
 					std::ostringstream oss(std::ios_base::binary);
 					decompressZlib(is, oss);
 					std::istringstream iss(oss.str(), std::ios_base::binary);
@@ -716,10 +716,10 @@ void MapBlock::deSerialize_pre22(std::istream &is, u8 version, bool disk)
 
 		// Timestamp
 		if (version >= 17) {
-			setTimestamp(readU32(is));
+			setTimestampNoChangedFlag(readU32(is));
 			m_disk_timestamp = m_timestamp;
 		} else {
-			setTimestamp(BLOCK_TIMESTAMP_UNDEFINED);
+			setTimestampNoChangedFlag(BLOCK_TIMESTAMP_UNDEFINED);
 		}
 
 		// Dynamically re-set ids based on node names
diff --git a/src/mapgen/mapgen.cpp b/src/mapgen/mapgen.cpp
index f57529082..e0dfd2d71 100644
--- a/src/mapgen/mapgen.cpp
+++ b/src/mapgen/mapgen.cpp
@@ -58,6 +58,7 @@ FlagDesc flagdesc_mapgen[] = {
 	{"light",       MG_LIGHT},
 	{"decorations", MG_DECORATIONS},
 	{"biomes",      MG_BIOMES},
+	{"ores",        MG_ORES},
 	{NULL,          0}
 };
 
@@ -217,7 +218,7 @@ void Mapgen::getMapgenNames(std::vector<const char *> *mgnames, bool include_hid
 void Mapgen::setDefaultSettings(Settings *settings)
 {
 	settings->setDefault("mg_flags", flagdesc_mapgen,
-		 MG_CAVES | MG_DUNGEONS | MG_LIGHT | MG_DECORATIONS | MG_BIOMES);
+		 MG_CAVES | MG_DUNGEONS | MG_LIGHT | MG_DECORATIONS | MG_BIOMES | MG_ORES);
 
 	for (int i = 0; i < (int)MAPGEN_INVALID; ++i) {
 		MapgenParams *params = createMapgenParams((MapgenType)i);
@@ -243,26 +244,6 @@ u32 Mapgen::getBlockSeed2(v3s16 p, s32 seed)
 }
 
 
-// Returns Y one under area minimum if not found
-s16 Mapgen::findGroundLevelFull(v2s16 p2d)
-{
-	const v3s16 &em = vm->m_area.getExtent();
-	s16 y_nodes_max = vm->m_area.MaxEdge.Y;
-	s16 y_nodes_min = vm->m_area.MinEdge.Y;
-	u32 i = vm->m_area.index(p2d.X, y_nodes_max, p2d.Y);
-	s16 y;
-
-	for (y = y_nodes_max; y >= y_nodes_min; y--) {
-		MapNode &n = vm->m_data[i];
-		if (ndef->get(n).walkable)
-			break;
-
-		VoxelArea::add_y(em, i, -1);
-	}
-	return (y >= y_nodes_min) ? y : y_nodes_min - 1;
-}
-
-
 // Returns -MAX_MAP_GENERATION_LIMIT if not found
 s16 Mapgen::findGroundLevel(v2s16 p2d, s16 ymin, s16 ymax)
 {
@@ -983,19 +964,6 @@ GenerateNotifier::GenerateNotifier(u32 notify_on,
 }
 
 
-void GenerateNotifier::setNotifyOn(u32 notify_on)
-{
-	m_notify_on = notify_on;
-}
-
-
-void GenerateNotifier::setNotifyOnDecoIds(
-	const std::set<u32> *notify_on_deco_ids)
-{
-	m_notify_on_deco_ids = notify_on_deco_ids;
-}
-
-
 bool GenerateNotifier::addEvent(GenNotifyType type, v3s16 pos, u32 id)
 {
 	if (!(m_notify_on & (1 << type)))
diff --git a/src/mapgen/mapgen.h b/src/mapgen/mapgen.h
index a92b3b0d0..1487731e2 100644
--- a/src/mapgen/mapgen.h
+++ b/src/mapgen/mapgen.h
@@ -37,6 +37,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #define MG_LIGHT       0x10
 #define MG_DECORATIONS 0x20
 #define MG_BIOMES      0x40
+#define MG_ORES        0x80
 
 typedef u16 biome_t;  // copy from mg_biome.h to avoid an unnecessary include
 
@@ -87,19 +88,17 @@ struct GenNotifyEvent {
 
 class GenerateNotifier {
 public:
+	// Use only for temporary Mapgen objects with no map generation!
 	GenerateNotifier() = default;
 	GenerateNotifier(u32 notify_on, const std::set<u32> *notify_on_deco_ids);
 
-	void setNotifyOn(u32 notify_on);
-	void setNotifyOnDecoIds(const std::set<u32> *notify_on_deco_ids);
-
 	bool addEvent(GenNotifyType type, v3s16 pos, u32 id=0);
 	void getEvents(std::map<std::string, std::vector<v3s16> > &event_map);
 	void clearEvents();
 
 private:
 	u32 m_notify_on = 0;
-	const std::set<u32> *m_notify_on_deco_ids;
+	const std::set<u32> *m_notify_on_deco_ids = nullptr;
 	std::list<GenNotifyEvent> m_notify_events;
 };
 
@@ -185,7 +184,6 @@ public:
 
 	static u32 getBlockSeed(v3s16 p, s32 seed);
 	static u32 getBlockSeed2(v3s16 p, s32 seed);
-	s16 findGroundLevelFull(v2s16 p2d);
 	s16 findGroundLevel(v2s16 p2d, s16 ymin, s16 ymax);
 	s16 findLiquidSurface(v2s16 p2d, s16 ymin, s16 ymax);
 	void updateHeightmap(v3s16 nmin, v3s16 nmax);
diff --git a/src/mapgen/mapgen_carpathian.cpp b/src/mapgen/mapgen_carpathian.cpp
index feb9b428c..b3a0bd270 100644
--- a/src/mapgen/mapgen_carpathian.cpp
+++ b/src/mapgen/mapgen_carpathian.cpp
@@ -260,12 +260,6 @@ void MapgenCarpathian::makeChunk(BlockMakeData *data)
 	// Pre-conditions
 	assert(data->vmanip);
 	assert(data->nodedef);
-	assert(data->blockpos_requested.X >= data->blockpos_min.X &&
-			data->blockpos_requested.Y >= data->blockpos_min.Y &&
-			data->blockpos_requested.Z >= data->blockpos_min.Z);
-	assert(data->blockpos_requested.X <= data->blockpos_max.X &&
-			data->blockpos_requested.Y <= data->blockpos_max.Y &&
-			data->blockpos_requested.Z <= data->blockpos_max.Z);
 
 	this->generating = true;
 	this->vm = data->vmanip;
@@ -315,7 +309,8 @@ void MapgenCarpathian::makeChunk(BlockMakeData *data)
 	}
 
 	// Generate the registered ores
-	m_emerge->oremgr->placeAllOres(this, blockseed, node_min, node_max);
+	if (flags & MG_ORES)
+		m_emerge->oremgr->placeAllOres(this, blockseed, node_min, node_max);
 
 	// Generate dungeons
 	if (flags & MG_DUNGEONS)
diff --git a/src/mapgen/mapgen_flat.cpp b/src/mapgen/mapgen_flat.cpp
index 369777ad2..342455029 100644
--- a/src/mapgen/mapgen_flat.cpp
+++ b/src/mapgen/mapgen_flat.cpp
@@ -1,7 +1,7 @@
 /*
 Minetest
-Copyright (C) 2015-2018 paramat
-Copyright (C) 2015-2018 kwolekr, Ryan Kwolek <kwolekr@minetest.net>
+Copyright (C) 2015-2020 paramat
+Copyright (C) 2015-2016 kwolekr, Ryan Kwolek <kwolekr@minetest.net>
 
 This program is free software; you can redistribute it and/or modify
 it under the terms of the GNU Lesser General Public License as published by
@@ -39,8 +39,9 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 
 
 FlagDesc flagdesc_mapgen_flat[] = {
-	{"lakes", MGFLAT_LAKES},
-	{"hills", MGFLAT_HILLS},
+	{"lakes",   MGFLAT_LAKES},
+	{"hills",   MGFLAT_HILLS},
+	{"caverns", MGFLAT_CAVERNS},
 	{NULL,    0}
 };
 
@@ -52,17 +53,21 @@ MapgenFlat::MapgenFlat(MapgenFlatParams *params, EmergeParams *emerge)
 {
 	spflags            = params->spflags;
 	ground_level       = params->ground_level;
-	large_cave_depth   = params->large_cave_depth;
+	lake_threshold     = params->lake_threshold;
+	lake_steepness     = params->lake_steepness;
+	hill_threshold     = params->hill_threshold;
+	hill_steepness     = params->hill_steepness;
+
+	cave_width         = params->cave_width;
 	small_cave_num_min = params->small_cave_num_min;
 	small_cave_num_max = params->small_cave_num_max;
 	large_cave_num_min = params->large_cave_num_min;
 	large_cave_num_max = params->large_cave_num_max;
+	large_cave_depth   = params->large_cave_depth;
 	large_cave_flooded = params->large_cave_flooded;
-	cave_width         = params->cave_width;
-	lake_threshold     = params->lake_threshold;
-	lake_steepness     = params->lake_steepness;
-	hill_threshold     = params->hill_threshold;
-	hill_steepness     = params->hill_steepness;
+	cavern_limit       = params->cavern_limit;
+	cavern_taper       = params->cavern_taper;
+	cavern_threshold   = params->cavern_threshold;
 	dungeon_ymin       = params->dungeon_ymin;
 	dungeon_ymax       = params->dungeon_ymax;
 
@@ -71,9 +76,11 @@ MapgenFlat::MapgenFlat(MapgenFlatParams *params, EmergeParams *emerge)
 
 	if ((spflags & MGFLAT_LAKES) || (spflags & MGFLAT_HILLS))
 		noise_terrain = new Noise(&params->np_terrain, seed, csize.X, csize.Z);
+
 	// 3D noise
 	MapgenBasic::np_cave1    = params->np_cave1;
 	MapgenBasic::np_cave2    = params->np_cave2;
+	MapgenBasic::np_cavern   = params->np_cavern;
 	MapgenBasic::np_dungeons = params->np_dungeons;
 }
 
@@ -88,11 +95,12 @@ MapgenFlat::~MapgenFlat()
 
 
 MapgenFlatParams::MapgenFlatParams():
-	np_terrain      (0,   1,   v3f(600, 600, 600), 7244,  5, 0.6, 2.0),
-	np_filler_depth (0,   1.2, v3f(150, 150, 150), 261,   3, 0.7, 2.0),
-	np_cave1        (0,   12,  v3f(61,  61,  61),  52534, 3, 0.5, 2.0),
-	np_cave2        (0,   12,  v3f(67,  67,  67),  10325, 3, 0.5, 2.0),
-	np_dungeons     (0.9, 0.5, v3f(500, 500, 500), 0,     2, 0.8, 2.0)
+	np_terrain      (0,   1,   v3f(600, 600, 600), 7244,  5, 0.6,  2.0),
+	np_filler_depth (0,   1.2, v3f(150, 150, 150), 261,   3, 0.7,  2.0),
+	np_cavern       (0.0, 1.0, v3f(384, 128, 384), 723,   5, 0.63, 2.0),
+	np_cave1        (0,   12,  v3f(61,  61,  61),  52534, 3, 0.5,  2.0),
+	np_cave2        (0,   12,  v3f(67,  67,  67),  10325, 3, 0.5,  2.0),
+	np_dungeons     (0.9, 0.5, v3f(500, 500, 500), 0,     2, 0.8,  2.0)
 {
 }
 
@@ -112,11 +120,15 @@ void MapgenFlatParams::readParams(const Settings *settings)
 	settings->getFloatNoEx("mgflat_lake_steepness",     lake_steepness);
 	settings->getFloatNoEx("mgflat_hill_threshold",     hill_threshold);
 	settings->getFloatNoEx("mgflat_hill_steepness",     hill_steepness);
+	settings->getS16NoEx("mgflat_cavern_limit",         cavern_limit);
+	settings->getS16NoEx("mgflat_cavern_taper",         cavern_taper);
+	settings->getFloatNoEx("mgflat_cavern_threshold",   cavern_threshold);
 	settings->getS16NoEx("mgflat_dungeon_ymin",         dungeon_ymin);
 	settings->getS16NoEx("mgflat_dungeon_ymax",         dungeon_ymax);
 
 	settings->getNoiseParams("mgflat_np_terrain",      np_terrain);
 	settings->getNoiseParams("mgflat_np_filler_depth", np_filler_depth);
+	settings->getNoiseParams("mgflat_np_cavern",       np_cavern);
 	settings->getNoiseParams("mgflat_np_cave1",        np_cave1);
 	settings->getNoiseParams("mgflat_np_cave2",        np_cave2);
 	settings->getNoiseParams("mgflat_np_dungeons",     np_dungeons);
@@ -138,11 +150,15 @@ void MapgenFlatParams::writeParams(Settings *settings) const
 	settings->setFloat("mgflat_lake_steepness",     lake_steepness);
 	settings->setFloat("mgflat_hill_threshold",     hill_threshold);
 	settings->setFloat("mgflat_hill_steepness",     hill_steepness);
+	settings->setS16("mgflat_cavern_limit",         cavern_limit);
+	settings->setS16("mgflat_cavern_taper",         cavern_taper);
+	settings->setFloat("mgflat_cavern_threshold",   cavern_threshold);
 	settings->setS16("mgflat_dungeon_ymin",         dungeon_ymin);
 	settings->setS16("mgflat_dungeon_ymax",         dungeon_ymax);
 
 	settings->setNoiseParams("mgflat_np_terrain",      np_terrain);
 	settings->setNoiseParams("mgflat_np_filler_depth", np_filler_depth);
+	settings->setNoiseParams("mgflat_np_cavern",       np_cavern);
 	settings->setNoiseParams("mgflat_np_cave1",        np_cave1);
 	settings->setNoiseParams("mgflat_np_cave2",        np_cave2);
 	settings->setNoiseParams("mgflat_np_dungeons",     np_dungeons);
@@ -193,12 +209,6 @@ void MapgenFlat::makeChunk(BlockMakeData *data)
 	// Pre-conditions
 	assert(data->vmanip);
 	assert(data->nodedef);
-	assert(data->blockpos_requested.X >= data->blockpos_min.X &&
-		data->blockpos_requested.Y >= data->blockpos_min.Y &&
-		data->blockpos_requested.Z >= data->blockpos_min.Z);
-	assert(data->blockpos_requested.X <= data->blockpos_max.X &&
-		data->blockpos_requested.Y <= data->blockpos_max.Y &&
-		data->blockpos_requested.Z <= data->blockpos_max.Z);
 
 	this->generating = true;
 	this->vm   = data->vmanip;
@@ -226,15 +236,30 @@ void MapgenFlat::makeChunk(BlockMakeData *data)
 		generateBiomes();
 	}
 
+	// Generate tunnels, caverns and large randomwalk caves
 	if (flags & MG_CAVES) {
-		// Generate tunnels
+		// Generate tunnels first as caverns confuse them
 		generateCavesNoiseIntersection(stone_surface_max_y);
+
+		// Generate caverns
+		bool near_cavern = false;
+		if (spflags & MGFLAT_CAVERNS)
+			near_cavern = generateCavernsNoise(stone_surface_max_y);
+
 		// Generate large randomwalk caves
-		generateCavesRandomWalk(stone_surface_max_y, large_cave_depth);
+		if (near_cavern)
+			// Disable large randomwalk caves in this mapchunk by setting
+			// 'large cave depth' to world base. Avoids excessive liquid in
+			// large caverns and floating blobs of overgenerated liquid.
+			generateCavesRandomWalk(stone_surface_max_y,
+				-MAX_MAP_GENERATION_LIMIT);
+		else
+			generateCavesRandomWalk(stone_surface_max_y, large_cave_depth);
 	}
 
 	// Generate the registered ores
-	m_emerge->oremgr->placeAllOres(this, blockseed, node_min, node_max);
+	if (flags & MG_ORES)
+		m_emerge->oremgr->placeAllOres(this, blockseed, node_min, node_max);
 
 	if (flags & MG_DUNGEONS)
 		generateDungeons(stone_surface_max_y);
diff --git a/src/mapgen/mapgen_flat.h b/src/mapgen/mapgen_flat.h
index 4902a802c..4b46aff27 100644
--- a/src/mapgen/mapgen_flat.h
+++ b/src/mapgen/mapgen_flat.h
@@ -1,7 +1,7 @@
 /*
 Minetest
-Copyright (C) 2015-2018 paramat
-Copyright (C) 2015-2018 kwolekr, Ryan Kwolek <kwolekr@minetest.net>
+Copyright (C) 2015-2020 paramat
+Copyright (C) 2015-2016 kwolekr, Ryan Kwolek <kwolekr@minetest.net>
 
 This program is free software; you can redistribute it and/or modify
 it under the terms of the GNU Lesser General Public License as published by
@@ -25,6 +25,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 /////// Mapgen Flat flags
 #define MGFLAT_LAKES 0x01
 #define MGFLAT_HILLS 0x02
+#define MGFLAT_CAVERNS 0x04
 
 class BiomeManager;
 
@@ -33,22 +34,27 @@ extern FlagDesc flagdesc_mapgen_flat[];
 struct MapgenFlatParams : public MapgenParams
 {
 	s16 ground_level = 8;
-	s16 large_cave_depth = -33;
+	float lake_threshold = -0.45f;
+	float lake_steepness = 48.0f;
+	float hill_threshold = 0.45f;
+	float hill_steepness = 64.0f;
+
+	float cave_width = 0.09f;
 	u16 small_cave_num_min = 0;
 	u16 small_cave_num_max = 0;
 	u16 large_cave_num_min = 0;
 	u16 large_cave_num_max = 2;
+	s16 large_cave_depth = -33;
 	float large_cave_flooded = 0.5f;
-	float cave_width = 0.09f;
-	float lake_threshold = -0.45f;
-	float lake_steepness = 48.0f;
-	float hill_threshold = 0.45f;
-	float hill_steepness = 64.0f;
+	s16 cavern_limit = -256;
+	s16 cavern_taper = 256;
+	float cavern_threshold = 0.7f;
 	s16 dungeon_ymin = -31000;
 	s16 dungeon_ymax = 31000;
 
 	NoiseParams np_terrain;
 	NoiseParams np_filler_depth;
+	NoiseParams np_cavern;
 	NoiseParams np_cave1;
 	NoiseParams np_cave2;
 	NoiseParams np_dungeons;
diff --git a/src/mapgen/mapgen_fractal.cpp b/src/mapgen/mapgen_fractal.cpp
index cb55bc288..fabb1b2b1 100644
--- a/src/mapgen/mapgen_fractal.cpp
+++ b/src/mapgen/mapgen_fractal.cpp
@@ -209,12 +209,6 @@ void MapgenFractal::makeChunk(BlockMakeData *data)
 	// Pre-conditions
 	assert(data->vmanip);
 	assert(data->nodedef);
-	assert(data->blockpos_requested.X >= data->blockpos_min.X &&
-		data->blockpos_requested.Y >= data->blockpos_min.Y &&
-		data->blockpos_requested.Z >= data->blockpos_min.Z);
-	assert(data->blockpos_requested.X <= data->blockpos_max.X &&
-		data->blockpos_requested.Y <= data->blockpos_max.Y &&
-		data->blockpos_requested.Z <= data->blockpos_max.Z);
 
 	//TimeTaker t("makeChunk");
 
@@ -250,7 +244,8 @@ void MapgenFractal::makeChunk(BlockMakeData *data)
 	}
 
 	// Generate the registered ores
-	m_emerge->oremgr->placeAllOres(this, blockseed, node_min, node_max);
+	if (flags & MG_ORES)
+		m_emerge->oremgr->placeAllOres(this, blockseed, node_min, node_max);
 
 	// Generate dungeons
 	if (flags & MG_DUNGEONS)
diff --git a/src/mapgen/mapgen_singlenode.cpp b/src/mapgen/mapgen_singlenode.cpp
index cade9e7a8..5382423fa 100644
--- a/src/mapgen/mapgen_singlenode.cpp
+++ b/src/mapgen/mapgen_singlenode.cpp
@@ -50,12 +50,6 @@ void MapgenSinglenode::makeChunk(BlockMakeData *data)
 	// Pre-conditions
 	assert(data->vmanip);
 	assert(data->nodedef);
-	assert(data->blockpos_requested.X >= data->blockpos_min.X &&
-		data->blockpos_requested.Y >= data->blockpos_min.Y &&
-		data->blockpos_requested.Z >= data->blockpos_min.Z);
-	assert(data->blockpos_requested.X <= data->blockpos_max.X &&
-		data->blockpos_requested.Y <= data->blockpos_max.Y &&
-		data->blockpos_requested.Z <= data->blockpos_max.Z);
 
 	this->generating = true;
 	this->vm   = data->vmanip;
diff --git a/src/mapgen/mapgen_v5.cpp b/src/mapgen/mapgen_v5.cpp
index 124667e5d..87e54755f 100644
--- a/src/mapgen/mapgen_v5.cpp
+++ b/src/mapgen/mapgen_v5.cpp
@@ -201,12 +201,6 @@ void MapgenV5::makeChunk(BlockMakeData *data)
 	// Pre-conditions
 	assert(data->vmanip);
 	assert(data->nodedef);
-	assert(data->blockpos_requested.X >= data->blockpos_min.X &&
-		data->blockpos_requested.Y >= data->blockpos_min.Y &&
-		data->blockpos_requested.Z >= data->blockpos_min.Z);
-	assert(data->blockpos_requested.X <= data->blockpos_max.X &&
-		data->blockpos_requested.Y <= data->blockpos_max.Y &&
-		data->blockpos_requested.Z <= data->blockpos_max.Z);
 
 	this->generating = true;
 	this->vm   = data->vmanip;
@@ -257,7 +251,8 @@ void MapgenV5::makeChunk(BlockMakeData *data)
 	}
 
 	// Generate the registered ores
-	m_emerge->oremgr->placeAllOres(this, blockseed, node_min, node_max);
+	if (flags & MG_ORES)
+		m_emerge->oremgr->placeAllOres(this, blockseed, node_min, node_max);
 
 	// Generate dungeons and desert temples
 	if (flags & MG_DUNGEONS)
diff --git a/src/mapgen/mapgen_v6.cpp b/src/mapgen/mapgen_v6.cpp
index e9692246c..e04180f96 100644
--- a/src/mapgen/mapgen_v6.cpp
+++ b/src/mapgen/mapgen_v6.cpp
@@ -341,12 +341,6 @@ float MapgenV6::baseTerrainLevelFromMap(int index)
 }
 
 
-s16 MapgenV6::find_ground_level_from_noise(u64 seed, v2s16 p2d, s16 precision)
-{
-	return baseTerrainLevelFromNoise(p2d) + MGV6_AVERAGE_MUD_AMOUNT;
-}
-
-
 int MapgenV6::getGroundLevelAtPoint(v2s16 p)
 {
 	return baseTerrainLevelFromNoise(p) + MGV6_AVERAGE_MUD_AMOUNT;
@@ -518,12 +512,6 @@ void MapgenV6::makeChunk(BlockMakeData *data)
 	// Pre-conditions
 	assert(data->vmanip);
 	assert(data->nodedef);
-	assert(data->blockpos_requested.X >= data->blockpos_min.X &&
-		data->blockpos_requested.Y >= data->blockpos_min.Y &&
-		data->blockpos_requested.Z >= data->blockpos_min.Z);
-	assert(data->blockpos_requested.X <= data->blockpos_max.X &&
-		data->blockpos_requested.Y <= data->blockpos_max.Y &&
-		data->blockpos_requested.Z <= data->blockpos_max.Z);
 
 	this->generating = true;
 	this->vm   = data->vmanip;
@@ -652,7 +640,8 @@ void MapgenV6::makeChunk(BlockMakeData *data)
 		m_emerge->decomgr->placeAllDecos(this, blockseed, node_min, node_max);
 
 	// Generate the registered ores
-	m_emerge->oremgr->placeAllOres(this, blockseed, node_min, node_max);
+	if (flags & MG_ORES)
+		m_emerge->oremgr->placeAllOres(this, blockseed, node_min, node_max);
 
 	// Calculate lighting
 	if (flags & MG_LIGHT)
diff --git a/src/mapgen/mapgen_v6.h b/src/mapgen/mapgen_v6.h
index ff565edec..a6e6da8c6 100644
--- a/src/mapgen/mapgen_v6.h
+++ b/src/mapgen/mapgen_v6.h
@@ -150,7 +150,6 @@ public:
 
 	s16 find_stone_level(v2s16 p2d);
 	bool block_is_underground(u64 seed, v3s16 blockpos);
-	s16 find_ground_level_from_noise(u64 seed, v2s16 p2d, s16 precision);
 
 	float getHumidity(v2s16 p);
 	float getTreeAmount(v2s16 p);
diff --git a/src/mapgen/mapgen_v7.cpp b/src/mapgen/mapgen_v7.cpp
index e93dc9140..cc5f5726d 100644
--- a/src/mapgen/mapgen_v7.cpp
+++ b/src/mapgen/mapgen_v7.cpp
@@ -317,12 +317,6 @@ void MapgenV7::makeChunk(BlockMakeData *data)
 	// Pre-conditions
 	assert(data->vmanip);
 	assert(data->nodedef);
-	assert(data->blockpos_requested.X >= data->blockpos_min.X &&
-		data->blockpos_requested.Y >= data->blockpos_min.Y &&
-		data->blockpos_requested.Z >= data->blockpos_min.Z);
-	assert(data->blockpos_requested.X <= data->blockpos_max.X &&
-		data->blockpos_requested.Y <= data->blockpos_max.Y &&
-		data->blockpos_requested.Z <= data->blockpos_max.Z);
 
 	//TimeTaker t("makeChunk");
 
@@ -342,10 +336,6 @@ void MapgenV7::makeChunk(BlockMakeData *data)
 	// Generate base and mountain terrain
 	s16 stone_surface_max_y = generateTerrain();
 
-	// Generate rivers
-	if (spflags & MGV7_RIDGES)
-		generateRidgeTerrain();
-
 	// Create heightmap
 	updateHeightmap(node_min, node_max);
 
@@ -377,7 +367,8 @@ void MapgenV7::makeChunk(BlockMakeData *data)
 	}
 
 	// Generate the registered ores
-	m_emerge->oremgr->placeAllOres(this, blockseed, node_min, node_max);
+	if (flags & MG_ORES)
+		m_emerge->oremgr->placeAllOres(this, blockseed, node_min, node_max);
 
 	// Generate dungeons
 	if (flags & MG_DUNGEONS)
@@ -466,6 +457,23 @@ bool MapgenV7::getMountainTerrainFromMap(int idx_xyz, int idx_xz, s16 y)
 }
 
 
+bool MapgenV7::getRiverChannelFromMap(int idx_xyz, int idx_xz, s16 y)
+{
+	// Maximum width of river channel. Creates the vertical canyon walls
+	float width = 0.2f;
+	float absuwatern = std::fabs(noise_ridge_uwater->result[idx_xz]) * 2.0f;
+	if (absuwatern > width)
+		return false;
+
+	float altitude = y - water_level;
+	float height_mod = (altitude + 17.0f) / 2.5f;
+	float width_mod = width - absuwatern;
+	float nridge = noise_ridge->result[idx_xyz] * std::fmax(altitude, 0.0f) / 7.0f;
+
+	return nridge + width_mod * height_mod >= 0.6f;
+}
+
+
 bool MapgenV7::getFloatlandTerrainFromMap(int idx_xyz, float float_offset)
 {
 	return noise_floatland->result[idx_xyz] + floatland_density - float_offset >= 0.0f;
@@ -520,6 +528,15 @@ int MapgenV7::generateTerrain()
 		}
 	}
 
+	// 'Generate rivers in this mapchunk' bool for
+	// simplification of condition checks in y-loop.
+	bool gen_rivers = (spflags & MGV7_RIDGES) && node_max.Y >= water_level - 16 &&
+		!gen_floatlands;
+	if (gen_rivers) {
+		noise_ridge->perlinMap3D(node_min.X, node_min.Y - 1, node_min.Z);
+		noise_ridge_uwater->perlinMap2D(node_min.X, node_min.Z);
+	}
+
 	//// Place nodes
 	const v3s16 &em = vm->m_area.getExtent();
 	s16 stone_surface_max_y = -MAX_MAP_GENERATION_LIMIT;
@@ -543,10 +560,13 @@ int MapgenV7::generateTerrain()
 			if (vm->m_data[vi].getContent() != CONTENT_IGNORE)
 				continue;
 
-			if (y <= surface_y) {
+			bool is_river_channel = gen_rivers &&
+				getRiverChannelFromMap(index3d, index2d, y);
+			if (y <= surface_y && !is_river_channel) {
 				vm->m_data[vi] = n_stone; // Base terrain
 			} else if ((spflags & MGV7_MOUNTAINS) &&
-					getMountainTerrainFromMap(index3d, index2d, y)) {
+					getMountainTerrainFromMap(index3d, index2d, y) &&
+					!is_river_channel) {
 				vm->m_data[vi] = n_stone; // Mountain terrain
 				if (y > stone_surface_max_y)
 					stone_surface_max_y = y;
@@ -568,45 +588,3 @@ int MapgenV7::generateTerrain()
 
 	return stone_surface_max_y;
 }
-
-
-void MapgenV7::generateRidgeTerrain()
-{
-	if (node_max.Y < water_level - 16 ||
-			(node_max.Y >= floatland_ymin && node_min.Y <= floatland_ymax))
-		return;
-
-	noise_ridge->perlinMap3D(node_min.X, node_min.Y - 1, node_min.Z);
-	noise_ridge_uwater->perlinMap2D(node_min.X, node_min.Z);
-
-	MapNode n_water(c_water_source);
-	MapNode n_air(CONTENT_AIR);
-	u32 index3d = 0;
-	float width = 0.2f;
-
-	for (s16 z = node_min.Z; z <= node_max.Z; z++)
-	for (s16 y = node_min.Y - 1; y <= node_max.Y + 1; y++) {
-		u32 vi = vm->m_area.index(node_min.X, y, z);
-		for (s16 x = node_min.X; x <= node_max.X; x++, index3d++, vi++) {
-			u32 index2d = (z - node_min.Z) * csize.X + (x - node_min.X);
-			float uwatern = noise_ridge_uwater->result[index2d] * 2.0f;
-			if (std::fabs(uwatern) > width)
-				continue;
-			// Optimises, but also avoids removing nodes placed by mods in
-			// 'on-generated', when generating outside mapchunk.
-			content_t c = vm->m_data[vi].getContent();
-			if (c != c_stone)
-				continue;
-
-			float altitude = y - water_level;
-			float height_mod = (altitude + 17.0f) / 2.5f;
-			float width_mod = width - std::fabs(uwatern);
-			float nridge = noise_ridge->result[index3d] *
-				std::fmax(altitude, 0.0f) / 7.0f;
-			if (nridge + width_mod * height_mod < 0.6f)
-				continue;
-
-			vm->m_data[vi] = (y > water_level) ? n_air : n_water;
-		}
-	}
-}
diff --git a/src/mapgen/mapgen_v7.h b/src/mapgen/mapgen_v7.h
index 4020cd935..5db10a304 100644
--- a/src/mapgen/mapgen_v7.h
+++ b/src/mapgen/mapgen_v7.h
@@ -94,10 +94,10 @@ public:
 	float baseTerrainLevelFromMap(int index);
 	bool getMountainTerrainAtPoint(s16 x, s16 y, s16 z);
 	bool getMountainTerrainFromMap(int idx_xyz, int idx_xz, s16 y);
+	bool getRiverChannelFromMap(int idx_xyz, int idx_xz, s16 y);
 	bool getFloatlandTerrainFromMap(int idx_xyz, float float_offset);
 
 	int generateTerrain();
-	void generateRidgeTerrain();
 
 private:
 	s16 mount_zero_level;
diff --git a/src/mapgen/mapgen_valleys.cpp b/src/mapgen/mapgen_valleys.cpp
index efcc8ee85..c4234857e 100644
--- a/src/mapgen/mapgen_valleys.cpp
+++ b/src/mapgen/mapgen_valleys.cpp
@@ -210,12 +210,6 @@ void MapgenValleys::makeChunk(BlockMakeData *data)
 	// Pre-conditions
 	assert(data->vmanip);
 	assert(data->nodedef);
-	assert(data->blockpos_requested.X >= data->blockpos_min.X &&
-		data->blockpos_requested.Y >= data->blockpos_min.Y &&
-		data->blockpos_requested.Z >= data->blockpos_min.Z);
-	assert(data->blockpos_requested.X <= data->blockpos_max.X &&
-		data->blockpos_requested.Y <= data->blockpos_max.Y &&
-		data->blockpos_requested.Z <= data->blockpos_max.Z);
 
 	//TimeTaker t("makeChunk");
 
@@ -268,7 +262,8 @@ void MapgenValleys::makeChunk(BlockMakeData *data)
 	}
 
 	// Generate the registered ores
-	m_emerge->oremgr->placeAllOres(this, blockseed, node_min, node_max);
+	if (flags & MG_ORES)
+		m_emerge->oremgr->placeAllOres(this, blockseed, node_min, node_max);
 
 	// Dungeon creation
 	if (flags & MG_DUNGEONS)
diff --git a/src/mapgen/mg_ore.cpp b/src/mapgen/mg_ore.cpp
index b50ed6a32..5814f433a 100644
--- a/src/mapgen/mg_ore.cpp
+++ b/src/mapgen/mg_ore.cpp
@@ -498,7 +498,11 @@ void OreVein::generate(MMVManip *vm, int mapseed, u32 blockseed,
 		}
 
 		// randval ranges from -1..1
-		float randval   = (float)pr.next() / (pr.RANDOM_RANGE / 2) - 1.f;
+		/* 
+			Note: can generate values slightly larger than 1 
+			but this can't be changed as mapgen must be deterministic accross versions.
+		*/
+		float randval   = (float)pr.next() / float(pr.RANDOM_RANGE / 2) - 1.f;
 		float noiseval  = contour(noise->result[index]);
 		float noiseval2 = contour(noise2->result[index]);
 		if (noiseval * noiseval2 + randval * random_factor < nthresh)
diff --git a/src/mapgen/mg_schematic.cpp b/src/mapgen/mg_schematic.cpp
index ba102d997..dfd414709 100644
--- a/src/mapgen/mg_schematic.cpp
+++ b/src/mapgen/mg_schematic.cpp
@@ -314,7 +314,7 @@ bool Schematic::deserializeFromMts(std::istream *is,
 	//// Read node names
 	u16 nidmapcount = readU16(ss);
 	for (int i = 0; i != nidmapcount; i++) {
-		std::string name = deSerializeString(ss);
+		std::string name = deSerializeString16(ss);
 
 		// Instances of "ignore" from v1 are converted to air (and instances
 		// are fixed to have MTSCHEM_PROB_NEVER later on).
@@ -372,7 +372,7 @@ bool Schematic::serializeToMts(std::ostream *os,
 
 	writeU16(ss, names.size()); // name count
 	for (size_t i = 0; i != names.size(); i++)
-		ss << serializeString(names[i]); // node names
+		ss << serializeString16(names[i]); // node names
 
 	// compressed bulk node data
 	MapNode::serializeBulk(ss, SER_FMT_VER_HIGHEST_WRITE,
diff --git a/src/mapgen/treegen.cpp b/src/mapgen/treegen.cpp
index e7e30c880..e633d800a 100644
--- a/src/mapgen/treegen.cpp
+++ b/src/mapgen/treegen.cpp
@@ -527,19 +527,6 @@ treegen::error make_ltree(MMVManip &vmanip, v3s16 p0,
 }
 
 
-void tree_node_placement(MMVManip &vmanip, v3f p0, MapNode node)
-{
-	v3s16 p1 = v3s16(myround(p0.X), myround(p0.Y), myround(p0.Z));
-	if (!vmanip.m_area.contains(p1))
-		return;
-	u32 vi = vmanip.m_area.index(p1);
-	if (vmanip.m_data[vi].getContent() != CONTENT_AIR
-			&& vmanip.m_data[vi].getContent() != CONTENT_IGNORE)
-		return;
-	vmanip.m_data[vmanip.m_area.index(p1)] = node;
-}
-
-
 void tree_trunk_placement(MMVManip &vmanip, v3f p0, TreeDef &tree_definition)
 {
 	v3s16 p1 = v3s16(myround(p0.X), myround(p0.Y), myround(p0.Z));
diff --git a/src/mapgen/treegen.h b/src/mapgen/treegen.h
index 447baabb3..59a418824 100644
--- a/src/mapgen/treegen.h
+++ b/src/mapgen/treegen.h
@@ -76,8 +76,6 @@ namespace treegen {
 		const NodeDefManager *ndef, const TreeDef &tree_definition);
 
 	// L-System tree gen helper functions
-	void tree_node_placement(MMVManip &vmanip, v3f p0,
-		MapNode node);
 	void tree_trunk_placement(MMVManip &vmanip, v3f p0,
 		TreeDef &tree_definition);
 	void tree_leaves_placement(MMVManip &vmanip, v3f p0,
diff --git a/src/mapsector.h b/src/mapsector.h
index dede364f6..ffd4cdd1d 100644
--- a/src/mapsector.h
+++ b/src/mapsector.h
@@ -62,6 +62,7 @@ public:
 
 	bool empty() const { return m_blocks.empty(); }
 
+	int size() const { return m_blocks.size(); }
 protected:
 
 	// The pile of MapBlocks
diff --git a/src/event.h b/src/mtevent.h
index 149f7eecd..149f7eecd 100644
--- a/src/event.h
+++ b/src/mtevent.h
diff --git a/src/nameidmapping.cpp b/src/nameidmapping.cpp
index bd5bb1fc8..05cfae069 100644
--- a/src/nameidmapping.cpp
+++ b/src/nameidmapping.cpp
@@ -27,7 +27,7 @@ void NameIdMapping::serialize(std::ostream &os) const
 	writeU16(os, m_id_to_name.size());
 	for (const auto &i : m_id_to_name) {
 		writeU16(os, i.first);
-		os << serializeString(i.second);
+		os << serializeString16(i.second);
 	}
 }
 
@@ -41,7 +41,7 @@ void NameIdMapping::deSerialize(std::istream &is)
 	m_name_to_id.clear();
 	for (u32 i = 0; i < count; i++) {
 		u16 id = readU16(is);
-		std::string name = deSerializeString(is);
+		std::string name = deSerializeString16(is);
 		m_id_to_name[id] = name;
 		m_name_to_id[name] = id;
 	}
diff --git a/src/network/CMakeLists.txt b/src/network/CMakeLists.txt
index c6995ab22..d2e2f52e9 100644
--- a/src/network/CMakeLists.txt
+++ b/src/network/CMakeLists.txt
@@ -16,8 +16,3 @@ if (BUILD_CLIENT)
 		PARENT_SCOPE
 	)
 endif()
-
-# Haiku networking support
-if(HAIKU)
-	set(PLATFORM_LIBS -lnetwork ${PLATFORM_LIBS})
-endif()
diff --git a/src/network/clientopcodes.cpp b/src/network/clientopcodes.cpp
index f812a08a1..55cfdd4dc 100644
--- a/src/network/clientopcodes.cpp
+++ b/src/network/clientopcodes.cpp
@@ -122,6 +122,7 @@ const ToClientCommandHandler toClientCommandTable[TOCLIENT_NUM_MSG_TYPES] =
 	null_command_handler,
 	{ "TOCLIENT_SRP_BYTES_S_B",            TOCLIENT_STATE_NOT_CONNECTED, &Client::handleCommand_SrpBytesSandB }, // 0x60
 	{ "TOCLIENT_FORMSPEC_PREPEND",         TOCLIENT_STATE_CONNECTED, &Client::handleCommand_FormspecPrepend }, // 0x61,
+	{ "TOCLIENT_MINIMAP_MODES",            TOCLIENT_STATE_CONNECTED, &Client::handleCommand_MinimapModes }, // 0x62,
 };
 
 const static ServerCommandFactory null_command_factory = { "TOSERVER_NULL", 0, false };
diff --git a/src/network/clientpackethandler.cpp b/src/network/clientpackethandler.cpp
index a3f1e668d..c39586f2c 100644
--- a/src/network/clientpackethandler.cpp
+++ b/src/network/clientpackethandler.cpp
@@ -504,7 +504,7 @@ void Client::handleCommand_ActiveObjectMessages(NetworkPacket* pkt)
 			if (!is.good())
 				break;
 
-			std::string message = deSerializeString(is);
+			std::string message = deSerializeString16(is);
 
 			// Pass on to the environment
 			m_env.processActiveObjectMessage(id, message);
@@ -1017,7 +1017,7 @@ void Client::handleCommand_AddParticleSpawner(NetworkPacket* pkt)
 	p.minsize            = readF32(is);
 	p.maxsize            = readF32(is);
 	p.collisiondetection = readU8(is);
-	p.texture            = deSerializeLongString(is);
+	p.texture            = deSerializeString32(is);
 
 	server_id = readU32(is);
 
@@ -1185,26 +1185,32 @@ void Client::handleCommand_HudSetFlags(NetworkPacket* pkt)
 	player->hud_flags |= flags;
 
 	if (g_settings->getBool("hud_flags_bypass"))
-		player->hud_flags = HUD_FLAG_HOTBAR_VISIBLE    | HUD_FLAG_HEALTHBAR_VISIBLE |
+		player->hud_flags = HUD_FLAG_HOTBAR_VISIBLE	| HUD_FLAG_HEALTHBAR_VISIBLE |
 			HUD_FLAG_CROSSHAIR_VISIBLE | HUD_FLAG_WIELDITEM_VISIBLE |
 			HUD_FLAG_BREATHBAR_VISIBLE | HUD_FLAG_MINIMAP_VISIBLE   |
 			HUD_FLAG_MINIMAP_RADAR_VISIBLE;
-	
 
 	m_minimap_disabled_by_server = !(player->hud_flags & HUD_FLAG_MINIMAP_VISIBLE);
 	bool m_minimap_radar_disabled_by_server = !(player->hud_flags & HUD_FLAG_MINIMAP_RADAR_VISIBLE);
 
+	// Not so satisying code to keep compatibility with old fixed mode system
+	// -->
+
 	// Hide minimap if it has been disabled by the server
 	if (m_minimap && m_minimap_disabled_by_server && was_minimap_visible)
 		// defers a minimap update, therefore only call it if really
 		// needed, by checking that minimap was visible before
-		m_minimap->setMinimapMode(MINIMAP_MODE_OFF);
-
-	// Switch to surface mode if radar disabled by server
-	if (m_minimap && m_minimap_radar_disabled_by_server && was_minimap_radar_visible)
-		m_minimap->setMinimapMode(MINIMAP_MODE_SURFACEx1);
-		
-
+		m_minimap->setModeIndex(0);
+
+	// If radar has been disabled, try to find a non radar mode or fall back to 0
+	if (m_minimap && m_minimap_radar_disabled_by_server
+			&& was_minimap_radar_visible) {
+		while (m_minimap->getModeIndex() > 0 &&
+				m_minimap->getModeDef().type == MINIMAP_TYPE_RADAR)
+			m_minimap->nextMode();
+	}
+	// <--
+	// End of 'not so satifying code'
 }
 
 void Client::handleCommand_HudSetParam(NetworkPacket* pkt)
@@ -1239,11 +1245,11 @@ void Client::handleCommand_HudSetSky(NetworkPacket* pkt)
 
 		SkyboxParams skybox;
 		skybox.bgcolor = video::SColor(readARGB8(is));
-		skybox.type = std::string(deSerializeString(is));
+		skybox.type = std::string(deSerializeString16(is));
 		u16 count = readU16(is);
 
 		for (size_t i = 0; i < count; i++)
-			skybox.textures.emplace_back(deSerializeString(is));
+			skybox.textures.emplace_back(deSerializeString16(is));
 
 		skybox.clouds = true;
 		try {
@@ -1645,3 +1651,30 @@ void Client::handleCommand_ModChannelSignal(NetworkPacket *pkt)
 	if (valid_signal)
 		m_script->on_modchannel_signal(channel, signal);
 }
+
+void Client::handleCommand_MinimapModes(NetworkPacket *pkt)
+{
+	u16 count; // modes
+	u16 mode;  // wanted current mode index after change
+
+	*pkt >> count >> mode;
+
+	if (m_minimap)
+		m_minimap->clearModes();
+
+	for (size_t index = 0; index < count; index++) {
+		u16 type;
+		std::string label;
+		u16 size;
+		std::string texture;
+		u16 scale;
+
+		*pkt >> type >> label >> size >> texture >> scale;
+
+		if (m_minimap)
+			m_minimap->addMode(MinimapType(type), size, label, texture, scale);
+	}
+
+	if (m_minimap)
+		m_minimap->setModeIndex(mode);
+}
diff --git a/src/network/connection.cpp b/src/network/connection.cpp
index 3692e45a9..0ba8c36b2 100644
--- a/src/network/connection.cpp
+++ b/src/network/connection.cpp
@@ -1269,7 +1269,8 @@ bool Connection::deletePeer(session_t peer_id, bool timeout)
 			return false;
 		peer = m_peers[peer_id];
 		m_peers.erase(peer_id);
-		m_peer_ids.remove(peer_id);
+		auto it = std::find(m_peer_ids.begin(), m_peer_ids.end(), peer_id);
+		m_peer_ids.erase(it);
 	}
 
 	Address peer_address;
@@ -1565,7 +1566,7 @@ void Connection::sendAck(session_t peer_id, u8 channelnum, u16 seqnum)
 
 UDPPeer* Connection::createServerPeer(Address& address)
 {
-	if (getPeerNoEx(PEER_ID_SERVER) != 0)
+	if (ConnectedToServer())
 	{
 		throw ConnectionException("Already connected to a server");
 	}
diff --git a/src/network/connection.h b/src/network/connection.h
index 47b0805ce..24cd4fe4a 100644
--- a/src/network/connection.h
+++ b/src/network/connection.h
@@ -30,7 +30,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "networkprotocol.h"
 #include <iostream>
 #include <fstream>
-#include <list>
+#include <vector>
 #include <map>
 
 class NetworkPacket;
@@ -795,7 +795,7 @@ protected:
 
 	void PrintInfo(std::ostream &out);
 
-	std::list<session_t> getPeerIDs()
+	std::vector<session_t> getPeerIDs()
 	{
 		MutexAutoLock peerlock(m_peers_mutex);
 		return m_peer_ids;
@@ -809,6 +809,11 @@ protected:
 	void putEvent(ConnectionEvent &e);
 
 	void TriggerSend();
+	
+	bool ConnectedToServer() 
+	{
+		return getPeerNoEx(PEER_ID_SERVER) != nullptr;
+	}
 private:
 	MutexedQueue<ConnectionEvent> m_event_queue;
 
@@ -816,7 +821,7 @@ private:
 	u32 m_protocol_id;
 
 	std::map<session_t, Peer *> m_peers;
-	std::list<session_t> m_peer_ids;
+	std::vector<session_t> m_peer_ids;
 	std::mutex m_peers_mutex;
 
 	std::unique_ptr<ConnectionSendThread> m_sendThread;
diff --git a/src/network/connectionthreads.cpp b/src/network/connectionthreads.cpp
index 9a6617a1c..7b62bc792 100644
--- a/src/network/connectionthreads.cpp
+++ b/src/network/connectionthreads.cpp
@@ -144,7 +144,7 @@ void ConnectionSendThread::Trigger()
 
 bool ConnectionSendThread::packetsQueued()
 {
-	std::list<session_t> peerIds = m_connection->getPeerIDs();
+	std::vector<session_t> peerIds = m_connection->getPeerIDs();
 
 	if (!m_outgoing_queue.empty() && !peerIds.empty())
 		return true;
@@ -171,8 +171,8 @@ bool ConnectionSendThread::packetsQueued()
 
 void ConnectionSendThread::runTimeouts(float dtime)
 {
-	std::list<session_t> timeouted_peers;
-	std::list<session_t> peerIds = m_connection->getPeerIDs();
+	std::vector<session_t> timeouted_peers;
+	std::vector<session_t> peerIds = m_connection->getPeerIDs();
 
 	for (session_t &peerId : peerIds) {
 		PeerHelper peer = m_connection->getPeerNoEx(peerId);
@@ -548,7 +548,7 @@ void ConnectionSendThread::disconnect()
 
 
 	// Send to all
-	std::list<session_t> peerids = m_connection->getPeerIDs();
+	std::vector<session_t> peerids = m_connection->getPeerIDs();
 
 	for (session_t peerid : peerids) {
 		sendAsPacket(peerid, 0, data, false);
@@ -620,7 +620,7 @@ void ConnectionSendThread::sendReliable(ConnectionCommand &c)
 
 void ConnectionSendThread::sendToAll(u8 channelnum, const SharedBuffer<u8> &data)
 {
-	std::list<session_t> peerids = m_connection->getPeerIDs();
+	std::vector<session_t> peerids = m_connection->getPeerIDs();
 
 	for (session_t peerid : peerids) {
 		send(peerid, channelnum, data);
@@ -629,7 +629,7 @@ void ConnectionSendThread::sendToAll(u8 channelnum, const SharedBuffer<u8> &data
 
 void ConnectionSendThread::sendToAllReliable(ConnectionCommand &c)
 {
-	std::list<session_t> peerids = m_connection->getPeerIDs();
+	std::vector<session_t> peerids = m_connection->getPeerIDs();
 
 	for (session_t peerid : peerids) {
 		PeerHelper peer = m_connection->getPeerNoEx(peerid);
@@ -643,8 +643,8 @@ void ConnectionSendThread::sendToAllReliable(ConnectionCommand &c)
 
 void ConnectionSendThread::sendPackets(float dtime)
 {
-	std::list<session_t> peerIds = m_connection->getPeerIDs();
-	std::list<session_t> pendingDisconnect;
+	std::vector<session_t> peerIds = m_connection->getPeerIDs();
+	std::vector<session_t> pendingDisconnect;
 	std::map<session_t, bool> pending_unreliable;
 
 	const unsigned int peer_packet_quota = m_iteration_packets_avaialble
@@ -843,13 +843,11 @@ void *ConnectionReceiveThread::run()
 		if (debug_print_timer > 20.0) {
 			debug_print_timer -= 20.0;
 
-			std::list<session_t> peerids = m_connection->getPeerIDs();
+			std::vector<session_t> peerids = m_connection->getPeerIDs();
 
-			for (std::list<session_t>::iterator i = peerids.begin();
-					i != peerids.end();
-					i++)
+			for (auto id : peerids)
 			{
-				PeerHelper peer = m_connection->getPeerNoEx(*i);
+				PeerHelper peer = m_connection->getPeerNoEx(id);
 				if (!peer)
 					continue;
 
@@ -958,8 +956,11 @@ void ConnectionReceiveThread::receive(SharedBuffer<u8> &packetdata,
 			// command was sent reliably.
 		}
 
-		/* The peer was not found in our lists. Add it. */
 		if (peer_id == PEER_ID_INEXISTENT) {
+			/* Ignore it if we are a client */
+			if (m_connection->ConnectedToServer())
+				return;
+			/* The peer was not found in our lists. Add it. */
 			peer_id = m_connection->createPeer(sender, MTP_MINETEST_RELIABLE_UDP, 0);
 		}
 
@@ -1039,7 +1040,7 @@ void ConnectionReceiveThread::receive(SharedBuffer<u8> &packetdata,
 
 bool ConnectionReceiveThread::getFromBuffers(session_t &peer_id, SharedBuffer<u8> &dst)
 {
-	std::list<session_t> peerids = m_connection->getPeerIDs();
+	std::vector<session_t> peerids = m_connection->getPeerIDs();
 
 	for (session_t peerid : peerids) {
 		PeerHelper peer = m_connection->getPeerNoEx(peerid);
diff --git a/src/network/networkpacket.cpp b/src/network/networkpacket.cpp
index 4d531b611..6d0abb12c 100644
--- a/src/network/networkpacket.cpp
+++ b/src/network/networkpacket.cpp
@@ -223,13 +223,6 @@ NetworkPacket& NetworkPacket::operator>>(char& dst)
 	return *this;
 }
 
-char NetworkPacket::getChar(u32 offset)
-{
-	checkReadOffset(offset, 1);
-
-	return readU8(&m_data[offset]);
-}
-
 NetworkPacket& NetworkPacket::operator<<(char src)
 {
 	checkDataSize(1);
diff --git a/src/network/networkpacket.h b/src/network/networkpacket.h
index fc8617651..e77bfb744 100644
--- a/src/network/networkpacket.h
+++ b/src/network/networkpacket.h
@@ -64,7 +64,6 @@ public:
 
 	std::string readLongString();
 
-	char getChar(u32 offset);
 	NetworkPacket &operator>>(char &dst);
 	NetworkPacket &operator<<(char src);
 
diff --git a/src/network/networkprotocol.h b/src/network/networkprotocol.h
index e57a7a794..98d143c89 100644
--- a/src/network/networkprotocol.h
+++ b/src/network/networkprotocol.h
@@ -204,6 +204,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 	PROTOCOL VERSION 39:
 		Updated set_sky packet
 		Adds new sun, moon and stars packets
+		Minimap modes
 */
 
 #define LATEST_PROTOCOL_VERSION 40
@@ -764,6 +765,17 @@ enum ToClientCommand
 		u8[len] formspec
 	*/
 
+	TOCLIENT_MINIMAP_MODES = 0x62,
+	/*
+		u16 count // modes
+		u16 mode  // wanted current mode index after change
+		for each mode
+			u16 type
+			std::string label
+			u16 size
+			std::string extra
+	*/
+
 	TOCLIENT_NUM_MSG_TYPES = 0x63,
 };
 
@@ -1034,7 +1046,7 @@ const static std::string accessDeniedStrings[SERVER_ACCESSDENIED_MAX] = {
 	"This server has experienced an internal error. You will now be disconnected."
 };
 
-enum PlayerListModifer: u8
+enum PlayerListModifer : u8
 {
 	PLAYER_LIST_INIT,
 	PLAYER_LIST_ADD,
diff --git a/src/network/serveropcodes.cpp b/src/network/serveropcodes.cpp
index 2fc3197c2..aea5d7174 100644
--- a/src/network/serveropcodes.cpp
+++ b/src/network/serveropcodes.cpp
@@ -221,4 +221,5 @@ const ClientCommandFactory clientCommandFactoryTable[TOCLIENT_NUM_MSG_TYPES] =
 	null_command_factory, // 0x5f
 	{ "TOSERVER_SRP_BYTES_S_B",            0, true }, // 0x60
 	{ "TOCLIENT_FORMSPEC_PREPEND",         0, true }, // 0x61
+	{ "TOCLIENT_MINIMAP_MODES",            0, true }, // 0x62
 };
diff --git a/src/network/serverpackethandler.cpp b/src/network/serverpackethandler.cpp
index b3008bb50..3db4eb286 100644
--- a/src/network/serverpackethandler.cpp
+++ b/src/network/serverpackethandler.cpp
@@ -491,17 +491,18 @@ void Server::process_PlayerPos(RemotePlayer *player, PlayerSAO *playersao,
 	playersao->setPlayerYaw(yaw);
 	playersao->setFov(fov);
 	playersao->setWantedRange(wanted_range);
+
 	player->keyPressed = keyPressed;
-	player->control.up = (keyPressed & 1);
-	player->control.down = (keyPressed & 2);
-	player->control.left = (keyPressed & 4);
-	player->control.right = (keyPressed & 8);
-	player->control.jump = (keyPressed & 16);
-	player->control.aux1 = (keyPressed & 32);
-	player->control.sneak = (keyPressed & 64);
-	player->control.LMB = (keyPressed & 128);
-	player->control.RMB = (keyPressed & 256);
-	player->control.zoom = (keyPressed & 512);
+	player->control.up    = (keyPressed & (0x1 << 0));
+	player->control.down  = (keyPressed & (0x1 << 1));
+	player->control.left  = (keyPressed & (0x1 << 2));
+	player->control.right = (keyPressed & (0x1 << 3));
+	player->control.jump  = (keyPressed & (0x1 << 4));
+	player->control.aux1  = (keyPressed & (0x1 << 5));
+	player->control.sneak = (keyPressed & (0x1 << 6));
+	player->control.dig   = (keyPressed & (0x1 << 7));
+	player->control.place = (keyPressed & (0x1 << 8));
+	player->control.zoom  = (keyPressed & (0x1 << 9));
 
 	if (playersao->checkMovementCheat()) {
 		// Call callbacks
@@ -599,7 +600,7 @@ void Server::handleCommand_InventoryAction(NetworkPacket* pkt)
 		<< std::endl;
 	std::istringstream is(datastring, std::ios_base::binary);
 	// Create an action
-	InventoryAction *a = InventoryAction::deSerialize(is);
+	std::unique_ptr<InventoryAction> a(InventoryAction::deSerialize(is));
 	if (!a) {
 		infostream << "TOSERVER_INVENTORY_ACTION: "
 				<< "InventoryAction::deSerialize() returned NULL"
@@ -616,11 +617,30 @@ void Server::handleCommand_InventoryAction(NetworkPacket* pkt)
 		where the client made a bad prediction.
 	*/
 
+	const bool player_has_interact = checkPriv(player->getName(), "interact");
+
+	auto check_inv_access = [player, player_has_interact] (
+			const InventoryLocation &loc) -> bool {
+		if (loc.type == InventoryLocation::CURRENT_PLAYER)
+			return false; // Only used internally on the client, never sent
+		if (loc.type == InventoryLocation::PLAYER) {
+			// Allow access to own inventory in all cases
+			return loc.name == player->getName();
+		}
+
+		if (!player_has_interact) {
+			infostream << "Cannot modify foreign inventory: "
+					<< "No interact privilege" << std::endl;
+			return false;
+		}
+		return true;
+	};
+
 	/*
 		Handle restrictions and special cases of the move action
 	*/
 	if (a->getType() == IAction::Move) {
-		IMoveAction *ma = (IMoveAction*)a;
+		IMoveAction *ma = (IMoveAction*)a.get();
 
 		ma->from_inv.applyCurrentPlayer(player->getName());
 		ma->to_inv.applyCurrentPlayer(player->getName());
@@ -629,15 +649,11 @@ void Server::handleCommand_InventoryAction(NetworkPacket* pkt)
 		if (ma->from_inv != ma->to_inv)
 			m_inventory_mgr->setInventoryModified(ma->to_inv);
 
-		bool from_inv_is_current_player =
-			(ma->from_inv.type == InventoryLocation::PLAYER) &&
-			(ma->from_inv.name == player->getName());
-
-		bool to_inv_is_current_player =
-			(ma->to_inv.type == InventoryLocation::PLAYER) &&
-			(ma->to_inv.name == player->getName());
+		if (!check_inv_access(ma->from_inv) ||
+				!check_inv_access(ma->to_inv))
+			return;
 
-		InventoryLocation *remote = from_inv_is_current_player ?
+		InventoryLocation *remote = ma->from_inv.type == InventoryLocation::PLAYER ?
 			&ma->to_inv : &ma->from_inv;
 
 		// Check for out-of-range interaction
@@ -657,7 +673,6 @@ void Server::handleCommand_InventoryAction(NetworkPacket* pkt)
 					<< (ma->from_inv.dump()) << ":" << ma->from_list
 					<< " to " << (ma->to_inv.dump()) << ":" << ma->to_list
 					<< " because src is " << ma->from_list << std::endl;
-			delete a;
 			return;
 		}
 
@@ -669,18 +684,6 @@ void Server::handleCommand_InventoryAction(NetworkPacket* pkt)
 					<< (ma->from_inv.dump()) << ":" << ma->from_list
 					<< " to " << (ma->to_inv.dump()) << ":" << ma->to_list
 					<< " because dst is " << ma->to_list << std::endl;
-			delete a;
-			return;
-		}
-
-		// Disallow moving items in elsewhere than player's inventory
-		// if not allowed to interact
-		if (!checkPriv(player->getName(), "interact") &&
-				(!from_inv_is_current_player ||
-				!to_inv_is_current_player)) {
-			infostream << "Cannot move outside of player's inventory: "
-					<< "No interact privilege" << std::endl;
-			delete a;
 			return;
 		}
 	}
@@ -688,7 +691,7 @@ void Server::handleCommand_InventoryAction(NetworkPacket* pkt)
 		Handle restrictions and special cases of the drop action
 	*/
 	else if (a->getType() == IAction::Drop) {
-		IDropAction *da = (IDropAction*)a;
+		IDropAction *da = (IDropAction*)a.get();
 
 		da->from_inv.applyCurrentPlayer(player->getName());
 
@@ -701,22 +704,18 @@ void Server::handleCommand_InventoryAction(NetworkPacket* pkt)
 			infostream << "Ignoring IDropAction from "
 					<< (da->from_inv.dump()) << ":" << da->from_list
 					<< " because src is " << da->from_list << std::endl;
-			delete a;
 			return;
 		}
 
 		// Disallow dropping items if not allowed to interact
-		if (!checkPriv(player->getName(), "interact")) {
-			delete a;
+		if (!player_has_interact || !check_inv_access(da->from_inv))
 			return;
-		}
 
 		// Disallow dropping items if dead
 		if (playersao->isDead()) {
 			infostream << "Ignoring IDropAction from "
 					<< (da->from_inv.dump()) << ":" << da->from_list
 					<< " because player is dead." << std::endl;
-			delete a;
 			return;
 		}
 	}
@@ -724,29 +723,28 @@ void Server::handleCommand_InventoryAction(NetworkPacket* pkt)
 		Handle restrictions and special cases of the craft action
 	*/
 	else if (a->getType() == IAction::Craft) {
-		ICraftAction *ca = (ICraftAction*)a;
+		ICraftAction *ca = (ICraftAction*)a.get();
 
 		ca->craft_inv.applyCurrentPlayer(player->getName());
 
 		m_inventory_mgr->setInventoryModified(ca->craft_inv);
 
-		//bool craft_inv_is_current_player =
-		//	(ca->craft_inv.type == InventoryLocation::PLAYER) &&
-		//	(ca->craft_inv.name == player->getName());
-
 		// Disallow crafting if not allowed to interact
-		if (!checkPriv(player->getName(), "interact")) {
+		if (!player_has_interact) {
 			infostream << "Cannot craft: "
 					<< "No interact privilege" << std::endl;
-			delete a;
 			return;
 		}
+
+		if (!check_inv_access(ca->craft_inv))
+			return;
+	} else {
+		// Unknown action. Ignored.
+		return;
 	}
 
 	// Do the action
 	a->apply(m_inventory_mgr.get(), playersao, this);
-	// Eat the action
-	delete a;
 }
 
 void Server::handleCommand_ChatMessage(NetworkPacket* pkt)
@@ -862,6 +860,15 @@ void Server::handleCommand_PlayerItem(NetworkPacket* pkt)
 
 	*pkt >> item;
 
+	if (item >= player->getHotbarItemcount()) {
+		actionstream << "Player: " << player->getName()
+			<< " tried to access item=" << item
+			<< " out of hotbar_itemcount="
+			<< player->getHotbarItemcount()
+			<< "; ignoring." << std::endl;
+		return;
+	}
+
 	playersao->getPlayer()->setWieldIndex(item);
 }
 
@@ -977,11 +984,17 @@ void Server::handleCommand_Interact(NetworkPacket *pkt)
 	v3f player_pos = playersao->getLastGoodPosition();
 
 	// Update wielded item
-	playersao->getPlayer()->setWieldIndex(item_i);
 
-	// Get pointed to node (undefined if not POINTEDTYPE_NODE)
-	v3s16 p_under = pointed.node_undersurface;
-	v3s16 p_above = pointed.node_abovesurface;
+	if (item_i >= player->getHotbarItemcount()) {
+		actionstream << "Player: " << player->getName()
+			<< " tried to access item=" << item_i
+			<< " out of hotbar_itemcount="
+			<< player->getHotbarItemcount()
+			<< "; ignoring." << std::endl;
+		return;
+	}
+
+	playersao->getPlayer()->setWieldIndex(item_i);
 
 	// Get pointed to object (NULL if not POINTEDTYPE_OBJECT)
 	ServerActiveObject *pointed_object = NULL;
@@ -995,17 +1008,6 @@ void Server::handleCommand_Interact(NetworkPacket *pkt)
 
 	}
 
-	v3f pointed_pos_under = player_pos;
-	v3f pointed_pos_above = player_pos;
-	if (pointed.type == POINTEDTHING_NODE) {
-		pointed_pos_under = intToFloat(p_under, BS);
-		pointed_pos_above = intToFloat(p_above, BS);
-	}
-	else if (pointed.type == POINTEDTHING_OBJECT) {
-		pointed_pos_under = pointed_object->getBasePosition();
-		pointed_pos_above = pointed_pos_under;
-	}
-
 	/*
 		Make sure the player is allowed to do it
 	*/
@@ -1013,16 +1015,19 @@ void Server::handleCommand_Interact(NetworkPacket *pkt)
 		actionstream << player->getName() << " attempted to interact with " <<
 				pointed.dump() << " without 'interact' privilege" << std::endl;
 
+		if (pointed.type != POINTEDTHING_NODE)
+			return;
+
 		// Re-send block to revert change on client-side
 		RemoteClient *client = getClient(peer_id);
 		// Digging completed -> under
 		if (action == INTERACT_DIGGING_COMPLETED) {
-			v3s16 blockpos = getNodeBlockPos(floatToInt(pointed_pos_under, BS));
+			v3s16 blockpos = getNodeBlockPos(pointed.node_undersurface);
 			client->SetBlockNotSent(blockpos);
 		}
 		// Placement -> above
 		else if (action == INTERACT_PLACE) {
-			v3s16 blockpos = getNodeBlockPos(floatToInt(pointed_pos_above, BS));
+			v3s16 blockpos = getNodeBlockPos(pointed.node_abovesurface);
 			client->SetBlockNotSent(blockpos);
 		}
 		return;
@@ -1030,7 +1035,6 @@ void Server::handleCommand_Interact(NetworkPacket *pkt)
 
 	/*
 		Check that target is reasonably close
-		(only when digging or placing things)
 	*/
 	static thread_local const bool enable_anticheat =
 			!g_settings->getBool("disable_anticheat");
@@ -1038,13 +1042,21 @@ void Server::handleCommand_Interact(NetworkPacket *pkt)
 	if ((action == INTERACT_START_DIGGING || action == INTERACT_DIGGING_COMPLETED ||
 			action == INTERACT_PLACE || action == INTERACT_USE) &&
 			enable_anticheat && !isSingleplayer()) {
-		float d = playersao->getEyePosition().getDistanceFrom(pointed_pos_under);
+		v3f target_pos = player_pos;
+		if (pointed.type == POINTEDTHING_NODE) {
+			target_pos = intToFloat(pointed.node_undersurface, BS);
+		} else if (pointed.type == POINTEDTHING_OBJECT) {
+			target_pos = pointed_object->getBasePosition();
+		}
+		float d = playersao->getEyePosition().getDistanceFrom(target_pos);
 
 		if (!checkInteractDistance(player, d, pointed.dump())) {
-			// Re-send block to revert change on client-side
-			RemoteClient *client = getClient(peer_id);
-			v3s16 blockpos = getNodeBlockPos(floatToInt(pointed_pos_under, BS));
-			client->SetBlockNotSent(blockpos);
+			if (pointed.type == POINTEDTHING_NODE) {
+				// Re-send block to revert change on client-side
+				RemoteClient *client = getClient(peer_id);
+				v3s16 blockpos = getNodeBlockPos(pointed.node_undersurface);
+				client->SetBlockNotSent(blockpos);
+			}
 			return;
 		}
 	}
@@ -1055,20 +1067,20 @@ void Server::handleCommand_Interact(NetworkPacket *pkt)
 	RollbackScopeActor rollback_scope(m_rollback,
 			std::string("player:")+player->getName());
 
-	/*
-		0: start digging or punch object
-	*/
-	if (action == INTERACT_START_DIGGING) {
+	switch (action) {
+	// Start digging or punch object
+	case INTERACT_START_DIGGING: {
 		if (pointed.type == POINTEDTHING_NODE) {
 			MapNode n(CONTENT_IGNORE);
 			bool pos_ok;
 
+			v3s16 p_under = pointed.node_undersurface;
 			n = m_env->getMap().getNode(p_under, &pos_ok);
 			if (!pos_ok) {
 				infostream << "Server: Not punching: Node not found. "
 					"Adding block to emerge queue." << std::endl;
-				m_emerge->enqueueBlockEmerge(peer_id, getNodeBlockPos(p_above),
-					false);
+				m_emerge->enqueueBlockEmerge(peer_id,
+					getNodeBlockPos(pointed.node_abovesurface), false);
 			}
 
 			if (n.getContent() != CONTENT_IGNORE)
@@ -1076,159 +1088,155 @@ void Server::handleCommand_Interact(NetworkPacket *pkt)
 
 			// Cheat prevention
 			playersao->noCheatDigStart(p_under);
+
+			return;
 		}
-		else if (pointed.type == POINTEDTHING_OBJECT) {
-			// Skip if object can't be interacted with anymore
-			if (pointed_object->isGone())
-				return;
 
-			ItemStack selected_item, hand_item;
-			ItemStack tool_item = playersao->getWieldedItem(&selected_item, &hand_item);
-			ToolCapabilities toolcap =
-					tool_item.getToolCapabilities(m_itemdef);
-			v3f dir = (pointed_object->getBasePosition() -
-					(playersao->getBasePosition() + playersao->getEyeOffset())
-						).normalize();
-			float time_from_last_punch =
-				playersao->resetTimeFromLastPunch();
-
-			u16 src_original_hp = pointed_object->getHP();
-			u16 dst_origin_hp = playersao->getHP();
-
-			u16 wear = pointed_object->punch(dir, &toolcap, playersao,
-					time_from_last_punch);
-
-			// Callback may have changed item, so get it again
-			playersao->getWieldedItem(&selected_item);
-			bool changed = selected_item.addWear(wear, m_itemdef);
-			if (changed)
-				playersao->setWieldedItem(selected_item);
-
-			// If the object is a player and its HP changed
-			if (src_original_hp != pointed_object->getHP() &&
-					pointed_object->getType() == ACTIVEOBJECT_TYPE_PLAYER) {
-				SendPlayerHPOrDie((PlayerSAO *)pointed_object,
-						PlayerHPChangeReason(PlayerHPChangeReason::PLAYER_PUNCH, playersao));
-			}
+		// Skip if the object can't be interacted with anymore
+		if (pointed.type != POINTEDTHING_OBJECT || pointed_object->isGone())
+			return;
 
-			// If the puncher is a player and its HP changed
-			if (dst_origin_hp != playersao->getHP())
-				SendPlayerHPOrDie(playersao,
-						PlayerHPChangeReason(PlayerHPChangeReason::PLAYER_PUNCH, pointed_object));
+		ItemStack selected_item, hand_item;
+		ItemStack tool_item = playersao->getWieldedItem(&selected_item, &hand_item);
+		ToolCapabilities toolcap =
+				tool_item.getToolCapabilities(m_itemdef);
+		v3f dir = (pointed_object->getBasePosition() -
+				(playersao->getBasePosition() + playersao->getEyeOffset())
+					).normalize();
+		float time_from_last_punch =
+			playersao->resetTimeFromLastPunch();
+
+		u16 src_original_hp = pointed_object->getHP();
+		u16 dst_origin_hp = playersao->getHP();
+
+		u16 wear = pointed_object->punch(dir, &toolcap, playersao,
+				time_from_last_punch);
+
+		// Callback may have changed item, so get it again
+		playersao->getWieldedItem(&selected_item);
+		bool changed = selected_item.addWear(wear, m_itemdef);
+		if (changed)
+			playersao->setWieldedItem(selected_item);
+
+		// If the object is a player and its HP changed
+		if (src_original_hp != pointed_object->getHP() &&
+				pointed_object->getType() == ACTIVEOBJECT_TYPE_PLAYER) {
+			SendPlayerHPOrDie((PlayerSAO *)pointed_object,
+					PlayerHPChangeReason(PlayerHPChangeReason::PLAYER_PUNCH, playersao));
 		}
 
+		// If the puncher is a player and its HP changed
+		if (dst_origin_hp != playersao->getHP())
+			SendPlayerHPOrDie(playersao,
+					PlayerHPChangeReason(PlayerHPChangeReason::PLAYER_PUNCH, pointed_object));
+
+		return;
 	} // action == INTERACT_START_DIGGING
 
-	/*
-		1: stop digging
-	*/
-	else if (action == INTERACT_STOP_DIGGING) {
-	} // action == INTERACT_STOP_DIGGING
+	case INTERACT_STOP_DIGGING:
+		// Nothing to do
+		return;
 
-	/*
-		2: Digging completed
-	*/
-	else if (action == INTERACT_DIGGING_COMPLETED) {
+	case INTERACT_DIGGING_COMPLETED: {
 		// Only digging of nodes
-		if (pointed.type == POINTEDTHING_NODE) {
-			bool pos_ok;
-			MapNode n = m_env->getMap().getNode(p_under, &pos_ok);
-			if (!pos_ok) {
-				infostream << "Server: Not finishing digging: Node not found. "
-					"Adding block to emerge queue." << std::endl;
-				m_emerge->enqueueBlockEmerge(peer_id, getNodeBlockPos(p_above),
-					false);
-			}
-
-			/* Cheat prevention */
-			bool is_valid_dig = true;
-			if (enable_anticheat && !isSingleplayer()) {
-				v3s16 nocheat_p = playersao->getNoCheatDigPos();
-				float nocheat_t = playersao->getNoCheatDigTime();
-				playersao->noCheatDigEnd();
-				// If player didn't start digging this, ignore dig
-				if (nocheat_p != p_under) {
-					infostream << "Server: " << player->getName()
-							<< " started digging "
-							<< PP(nocheat_p) << " and completed digging "
-							<< PP(p_under) << "; not digging." << std::endl;
-					is_valid_dig = false;
-					// Call callbacks
-					m_script->on_cheat(playersao, "finished_unknown_dig");
-				}
+		if (pointed.type != POINTEDTHING_NODE)
+			return;
+		bool pos_ok;
+		v3s16 p_under = pointed.node_undersurface;
+		MapNode n = m_env->getMap().getNode(p_under, &pos_ok);
+		if (!pos_ok) {
+			infostream << "Server: Not finishing digging: Node not found. "
+				"Adding block to emerge queue." << std::endl;
+			m_emerge->enqueueBlockEmerge(peer_id,
+				getNodeBlockPos(pointed.node_abovesurface), false);
+		}
 
-				// Get player's wielded item
-				// See also: Game::handleDigging
-				ItemStack selected_item, hand_item;
-				playersao->getPlayer()->getWieldedItem(&selected_item, &hand_item);
-
-				// Get diggability and expected digging time
-				DigParams params = getDigParams(m_nodedef->get(n).groups,
-						&selected_item.getToolCapabilities(m_itemdef));
-				// If can't dig, try hand
-				if (!params.diggable) {
-					params = getDigParams(m_nodedef->get(n).groups,
-						&hand_item.getToolCapabilities(m_itemdef));
-				}
-				// If can't dig, ignore dig
-				if (!params.diggable) {
-					infostream << "Server: " << player->getName()
-							<< " completed digging " << PP(p_under)
-							<< ", which is not diggable with tool; not digging."
-							<< std::endl;
-					is_valid_dig = false;
-					// Call callbacks
-					m_script->on_cheat(playersao, "dug_unbreakable");
-				}
-				// Check digging time
-				// If already invalidated, we don't have to
-				if (!is_valid_dig) {
-					// Well not our problem then
-				}
-				// Clean and long dig
-				else if (params.time > 2.0 && nocheat_t * 1.2 > params.time) {
-					// All is good, but grab time from pool; don't care if
-					// it's actually available
-					playersao->getDigPool().grab(params.time);
-				}
-				// Short or laggy dig
-				// Try getting the time from pool
-				else if (playersao->getDigPool().grab(params.time)) {
-					// All is good
-				}
-				// Dig not possible
-				else {
-					infostream << "Server: " << player->getName()
-							<< " completed digging " << PP(p_under)
-							<< "too fast; not digging." << std::endl;
-					is_valid_dig = false;
-					// Call callbacks
-					m_script->on_cheat(playersao, "dug_too_fast");
-				}
+		/* Cheat prevention */
+		bool is_valid_dig = true;
+		if (enable_anticheat && !isSingleplayer()) {
+			v3s16 nocheat_p = playersao->getNoCheatDigPos();
+			float nocheat_t = playersao->getNoCheatDigTime();
+			playersao->noCheatDigEnd();
+			// If player didn't start digging this, ignore dig
+			if (nocheat_p != p_under) {
+				infostream << "Server: " << player->getName()
+						<< " started digging "
+						<< PP(nocheat_p) << " and completed digging "
+						<< PP(p_under) << "; not digging." << std::endl;
+				is_valid_dig = false;
+				// Call callbacks
+				m_script->on_cheat(playersao, "finished_unknown_dig");
 			}
 
-			/* Actually dig node */
-
-			if (is_valid_dig && n.getContent() != CONTENT_IGNORE)
-				m_script->node_on_dig(p_under, n, playersao);
-
-			v3s16 blockpos = getNodeBlockPos(floatToInt(pointed_pos_under, BS));
-			RemoteClient *client = getClient(peer_id);
-			// Send unusual result (that is, node not being removed)
-			if (m_env->getMap().getNode(p_under).getContent() != CONTENT_AIR) {
-				// Re-send block to revert change on client-side
-				client->SetBlockNotSent(blockpos);
+			// Get player's wielded item
+			// See also: Game::handleDigging
+			ItemStack selected_item, hand_item;
+			playersao->getPlayer()->getWieldedItem(&selected_item, &hand_item);
+
+			// Get diggability and expected digging time
+			DigParams params = getDigParams(m_nodedef->get(n).groups,
+					&selected_item.getToolCapabilities(m_itemdef));
+			// If can't dig, try hand
+			if (!params.diggable) {
+				params = getDigParams(m_nodedef->get(n).groups,
+					&hand_item.getToolCapabilities(m_itemdef));
+			}
+			// If can't dig, ignore dig
+			if (!params.diggable) {
+				infostream << "Server: " << player->getName()
+						<< " completed digging " << PP(p_under)
+						<< ", which is not diggable with tool; not digging."
+						<< std::endl;
+				is_valid_dig = false;
+				// Call callbacks
+				m_script->on_cheat(playersao, "dug_unbreakable");
+			}
+			// Check digging time
+			// If already invalidated, we don't have to
+			if (!is_valid_dig) {
+				// Well not our problem then
+			}
+			// Clean and long dig
+			else if (params.time > 2.0 && nocheat_t * 1.2 > params.time) {
+				// All is good, but grab time from pool; don't care if
+				// it's actually available
+				playersao->getDigPool().grab(params.time);
 			}
+			// Short or laggy dig
+			// Try getting the time from pool
+			else if (playersao->getDigPool().grab(params.time)) {
+				// All is good
+			}
+			// Dig not possible
 			else {
-				client->ResendBlockIfOnWire(blockpos);
+				infostream << "Server: " << player->getName()
+						<< " completed digging " << PP(p_under)
+						<< "too fast; not digging." << std::endl;
+				is_valid_dig = false;
+				// Call callbacks
+				m_script->on_cheat(playersao, "dug_too_fast");
 			}
 		}
+
+		/* Actually dig node */
+
+		if (is_valid_dig && n.getContent() != CONTENT_IGNORE)
+			m_script->node_on_dig(p_under, n, playersao);
+
+		v3s16 blockpos = getNodeBlockPos(p_under);
+		RemoteClient *client = getClient(peer_id);
+		// Send unusual result (that is, node not being removed)
+		if (m_env->getMap().getNode(p_under).getContent() != CONTENT_AIR)
+			// Re-send block to revert change on client-side
+			client->SetBlockNotSent(blockpos);
+		else
+			client->ResendBlockIfOnWire(blockpos);
+
+		return;
 	} // action == INTERACT_DIGGING_COMPLETED
 
-	/*
-		3: place block or right-click object
-	*/
-	else if (action == INTERACT_PLACE) {
+	// Place block or right-click object
+	case INTERACT_PLACE: {
 		ItemStack selected_item;
 		playersao->getWieldedItem(&selected_item, nullptr);
 
@@ -1257,59 +1265,54 @@ void Server::handleCommand_Interact(NetworkPacket *pkt)
 			}
 
 			pointed_object->rightClick(playersao);
-		} else if (m_script->item_OnPlace(
-				selected_item, playersao, pointed)) {
+		} else if (m_script->item_OnPlace(selected_item, playersao, pointed)) {
 			// Placement was handled in lua
 
 			// Apply returned ItemStack
-			if (playersao->setWieldedItem(selected_item)) {
+			if (playersao->setWieldedItem(selected_item))
 				SendInventory(playersao, true);
-			}
 		}
 
+		if (pointed.type != POINTEDTHING_NODE)
+			return;
+
 		// If item has node placement prediction, always send the
 		// blocks to make sure the client knows what exactly happened
 		RemoteClient *client = getClient(peer_id);
-		v3s16 blockpos = getNodeBlockPos(floatToInt(pointed_pos_above, BS));
-		v3s16 blockpos2 = getNodeBlockPos(floatToInt(pointed_pos_under, BS));
-		if (!selected_item.getDefinition(m_itemdef).node_placement_prediction.empty()) {
+		v3s16 blockpos = getNodeBlockPos(pointed.node_abovesurface);
+		v3s16 blockpos2 = getNodeBlockPos(pointed.node_undersurface);
+		if (!selected_item.getDefinition(m_itemdef
+				).node_placement_prediction.empty()) {
 			client->SetBlockNotSent(blockpos);
-			if (blockpos2 != blockpos) {
+			if (blockpos2 != blockpos)
 				client->SetBlockNotSent(blockpos2);
-			}
-		}
-		else {
+		} else {
 			client->ResendBlockIfOnWire(blockpos);
-			if (blockpos2 != blockpos) {
+			if (blockpos2 != blockpos)
 				client->ResendBlockIfOnWire(blockpos2);
-			}
 		}
+
+		return;
 	} // action == INTERACT_PLACE
 
-	/*
-		4: use
-	*/
-	else if (action == INTERACT_USE) {
+	case INTERACT_USE: {
 		ItemStack selected_item;
 		playersao->getWieldedItem(&selected_item, nullptr);
 
 		actionstream << player->getName() << " uses " << selected_item.name
 				<< ", pointing at " << pointed.dump() << std::endl;
 
-		if (m_script->item_OnUse(
-				selected_item, playersao, pointed)) {
+		if (m_script->item_OnUse(selected_item, playersao, pointed)) {
 			// Apply returned ItemStack
-			if (playersao->setWieldedItem(selected_item)) {
+			if (playersao->setWieldedItem(selected_item))
 				SendInventory(playersao, true);
-			}
 		}
 
-	} // action == INTERACT_USE
+		return;
+	}
 
-	/*
-		5: rightclick air
-	*/
-	else if (action == INTERACT_ACTIVATE) {
+	// Rightclick air
+	case INTERACT_ACTIVATE: {
 		ItemStack selected_item;
 		playersao->getWieldedItem(&selected_item, nullptr);
 
@@ -1318,21 +1321,17 @@ void Server::handleCommand_Interact(NetworkPacket *pkt)
 
 		pointed.type = POINTEDTHING_NOTHING; // can only ever be NOTHING
 
-		if (m_script->item_OnSecondaryUse(
-				selected_item, playersao, pointed)) {
-			if (playersao->setWieldedItem(selected_item)) {
+		if (m_script->item_OnSecondaryUse(selected_item, playersao, pointed)) {
+			if (playersao->setWieldedItem(selected_item))
 				SendInventory(playersao, true);
-			}
 		}
-	} // action == INTERACT_ACTIVATE
 
+		return;
+	}
+
+	default:
+		warningstream << "Server: Invalid action " << action << std::endl;
 
-	/*
-		Catch invalid actions
-	*/
-	else {
-		warningstream << "Server: Invalid action "
-				<< action << std::endl;
 	}
 }
 
@@ -1658,19 +1657,18 @@ void Server::handleCommand_SrpBytesM(NetworkPacket* pkt)
 
 	bool wantSudo = (cstate == CS_Active);
 
-	verbosestream << "Server: Received TOCLIENT_SRP_BYTES_M." << std::endl;
+	verbosestream << "Server: Received TOSERVER_SRP_BYTES_M." << std::endl;
 
 	if (!((cstate == CS_HelloSent) || (cstate == CS_Active))) {
-		actionstream << "Server: got SRP _M packet in wrong state "
-			<< cstate << " from " << addr_s
-			<< ". Ignoring." << std::endl;
+		warningstream << "Server: got SRP_M packet in wrong state "
+			<< cstate << " from " << addr_s << ". Ignoring." << std::endl;
 		return;
 	}
 
 	if (client->chosen_mech != AUTH_MECHANISM_SRP &&
 			client->chosen_mech != AUTH_MECHANISM_LEGACY_PASSWORD) {
-		actionstream << "Server: got SRP _M packet, while auth"
-			<< "is going on with mech " << client->chosen_mech << " from " 
+		warningstream << "Server: got SRP_M packet, while auth "
+			"is going on with mech " << client->chosen_mech << " from "
 			<< addr_s << " (wantSudo=" << wantSudo << "). Denying." << std::endl;
 		if (wantSudo) {
 			DenySudoAccess(peer_id);
@@ -1718,7 +1716,7 @@ void Server::handleCommand_SrpBytesM(NetworkPacket* pkt)
 
 		std::string checkpwd; // not used, but needed for passing something
 		if (!m_script->getAuth(playername, &checkpwd, NULL)) {
-			actionstream << "Server: " << playername <<
+			errorstream << "Server: " << playername <<
 				" cannot be authenticated (auth handler does not work?)" <<
 				std::endl;
 			DenyAccess(peer_id, SERVER_ACCESSDENIED_SERVER_FAIL);
diff --git a/src/nodedef.cpp b/src/nodedef.cpp
index 540ed6086..4d4fc7a7a 100644
--- a/src/nodedef.cpp
+++ b/src/nodedef.cpp
@@ -207,7 +207,7 @@ void TileDef::serialize(std::ostream &os, u16 protocol_version) const
 	u8 version = 6;
 	writeU8(os, version);
 
-	os << serializeString(name);
+	os << serializeString16(name);
 	animation.serialize(os, version);
 	bool has_scale = scale > 0;
 	u16 flags = 0;
@@ -241,7 +241,7 @@ void TileDef::deSerialize(std::istream &is, u8 contentfeatures_version,
 	int version = readU8(is);
 	if (version < 6)
 		throw SerializationError("unsupported TileDef version");
-	name = deSerializeString(is);
+	name = deSerializeString16(is);
 	animation.deSerialize(is, version);
 	u16 flags = readU16(is);
 	backface_culling = flags & TILE_FLAG_BACKFACE_CULLING;
@@ -266,9 +266,6 @@ void TextureSettings::readSettings()
 {
 	connected_glass                = g_settings->getBool("connected_glass");
 	opaque_water                   = g_settings->getBool("opaque_water");
-	bool enable_shaders            = g_settings->getBool("enable_shaders");
-	bool enable_bumpmapping        = g_settings->getBool("enable_bumpmapping");
-	bool enable_parallax_occlusion = g_settings->getBool("enable_parallax_occlusion");
 	bool smooth_lighting           = g_settings->getBool("smooth_lighting");
 	enable_mesh_cache              = g_settings->getBool("enable_mesh_cache");
 	enable_minimap                 = g_settings->getBool("enable_minimap");
@@ -281,8 +278,6 @@ void TextureSettings::readSettings()
 	if (smooth_lighting)
 		enable_mesh_cache = false;
 
-	use_normal_texture = enable_shaders &&
-		(enable_bumpmapping || enable_parallax_occlusion);
 	if (leaves_style_str == "fancy") {
 		leaves_style = LEAVES_FANCY;
 	} else if (leaves_style_str == "simple") {
@@ -416,10 +411,10 @@ void ContentFeatures::serialize(std::ostream &os, u16 protocol_version) const
 	writeU8(os, version);
 
 	// general
-	os << serializeString(name);
+	os << serializeString16(name);
 	writeU16(os, groups.size());
 	for (const auto &group : groups) {
-		os << serializeString(group.first);
+		os << serializeString16(group.first);
 		writeS16(os, group.second);
 	}
 	writeU8(os, param_type);
@@ -427,7 +422,7 @@ void ContentFeatures::serialize(std::ostream &os, u16 protocol_version) const
 
 	// visual
 	writeU8(os, drawtype);
-	os << serializeString(mesh);
+	os << serializeString16(mesh);
 	writeF32(os, visual_scale);
 	writeU8(os, 6);
 	for (const TileDef &td : tiledef)
@@ -442,7 +437,7 @@ void ContentFeatures::serialize(std::ostream &os, u16 protocol_version) const
 	writeU8(os, color.getRed());
 	writeU8(os, color.getGreen());
 	writeU8(os, color.getBlue());
-	os << serializeString(palette_name);
+	os << serializeString16(palette_name);
 	writeU8(os, waving);
 	writeU8(os, connect_sides);
 	writeU16(os, connects_to_ids.size());
@@ -470,8 +465,8 @@ void ContentFeatures::serialize(std::ostream &os, u16 protocol_version) const
 
 	// liquid
 	writeU8(os, liquid_type);
-	os << serializeString(liquid_alternative_flowing);
-	os << serializeString(liquid_alternative_source);
+	os << serializeString16(liquid_alternative_flowing);
+	os << serializeString16(liquid_alternative_source);
 	writeU8(os, liquid_viscosity);
 	writeU8(os, liquid_renewable);
 	writeU8(os, liquid_range);
@@ -492,7 +487,7 @@ void ContentFeatures::serialize(std::ostream &os, u16 protocol_version) const
 	writeU8(os, legacy_facedir_simple);
 	writeU8(os, legacy_wallmounted);
 
-	os << serializeString(node_dig_prediction);
+	os << serializeString16(node_dig_prediction);
 	writeU8(os, leveled_max);
 }
 
@@ -519,11 +514,11 @@ void ContentFeatures::deSerialize(std::istream &is)
 		throw SerializationError("unsupported ContentFeatures version");
 
 	// general
-	name = deSerializeString(is);
+	name = deSerializeString16(is);
 	groups.clear();
 	u32 groups_size = readU16(is);
 	for (u32 i = 0; i < groups_size; i++) {
-		std::string name = deSerializeString(is);
+		std::string name = deSerializeString16(is);
 		int value = readS16(is);
 		groups[name] = value;
 	}
@@ -532,7 +527,7 @@ void ContentFeatures::deSerialize(std::istream &is)
 
 	// visual
 	drawtype = (enum NodeDrawType) readU8(is);
-	mesh = deSerializeString(is);
+	mesh = deSerializeString16(is);
 	visual_scale = readF32(is);
 	if (readU8(is) != 6)
 		throw SerializationError("unsupported tile count");
@@ -548,7 +543,7 @@ void ContentFeatures::deSerialize(std::istream &is)
 	color.setRed(readU8(is));
 	color.setGreen(readU8(is));
 	color.setBlue(readU8(is));
-	palette_name = deSerializeString(is);
+	palette_name = deSerializeString16(is);
 	waving = readU8(is);
 	connect_sides = readU8(is);
 	u16 connects_to_size = readU16(is);
@@ -578,8 +573,8 @@ void ContentFeatures::deSerialize(std::istream &is)
 
 	// liquid
 	liquid_type = (enum LiquidType) readU8(is);
-	liquid_alternative_flowing = deSerializeString(is);
-	liquid_alternative_source = deSerializeString(is);
+	liquid_alternative_flowing = deSerializeString16(is);
+	liquid_alternative_source = deSerializeString16(is);
 	liquid_viscosity = readU8(is);
 	liquid_renewable = readU8(is);
 	liquid_range = readU8(is);
@@ -601,7 +596,7 @@ void ContentFeatures::deSerialize(std::istream &is)
 	legacy_wallmounted = readU8(is);
 
 	try {
-		node_dig_prediction = deSerializeString(is);
+		node_dig_prediction = deSerializeString16(is);
 		u8 tmp_leveled_max = readU8(is);
 		if (is.eof()) /* readU8 doesn't throw exceptions so we have to do this */
 			throw SerializationError("");
@@ -635,10 +630,6 @@ static void fillTileAttribs(ITextureSource *tsrc, TileLayer *layer,
 	if (!tile.world_aligned)
 		layer->scale = 1;
 
-	// Normal texture and shader flags texture
-	if (tsettings.use_normal_texture) {
-		layer->normal_texture = tsrc->getNormalTexture(tiledef.name);
-	}
 	layer->flags_texture = tsrc->getShaderFlagsTexture(layer->normal_texture ? true : false);
 
 	// Material flags
@@ -695,9 +686,54 @@ static void fillTileAttribs(ITextureSource *tsrc, TileLayer *layer,
 		}
 	}
 }
-#endif
 
-#ifndef SERVER
+bool ContentFeatures::textureAlphaCheck(ITextureSource *tsrc, const TileDef *tiles, int length)
+{
+	video::IVideoDriver *driver = RenderingEngine::get_video_driver();
+	static thread_local bool long_warning_printed = false;
+	std::set<std::string> seen;
+	for (int i = 0; i < length; i++) {
+		if (seen.find(tiles[i].name) != seen.end())
+			continue;
+		seen.insert(tiles[i].name);
+
+		// Load the texture and see if there's any transparent pixels
+		video::ITexture *texture = tsrc->getTexture(tiles[i].name);
+		video::IImage *image = driver->createImage(texture,
+			core::position2d<s32>(0, 0), texture->getOriginalSize());
+		if (!image)
+			continue;
+		core::dimension2d<u32> dim = image->getDimension();
+		bool ok = true;
+		for (u16 x = 0; x < dim.Width; x++) {
+			for (u16 y = 0; y < dim.Height; y++) {
+				if (image->getPixel(x, y).getAlpha() < 255) {
+					ok = false;
+					goto break_loop;
+				}
+			}
+		}
+
+break_loop:
+		image->drop();
+		if (!ok) {
+			warningstream << "Texture \"" << tiles[i].name << "\" of "
+				<< name << " has transparent pixels, assuming "
+				"use_texture_alpha = true." << std::endl;
+			if (!long_warning_printed) {
+				warningstream << "  This warning can be a false-positive if "
+					"unused pixels in the texture are transparent. However if "
+					"it is meant to be transparent, you *MUST* update the "
+					"nodedef and set use_texture_alpha = true! This compatibility "
+					"code will be removed in a few releases." << std::endl;
+				long_warning_printed = true;
+			}
+			return true;
+		}
+	}
+	return false;
+}
+
 bool isWorldAligned(AlignStyle style, WorldAlignMode mode, NodeDrawType drawtype)
 {
 	if (style == ALIGN_STYLE_WORLD)
@@ -814,13 +850,19 @@ void ContentFeatures::updateTextures(ITextureSource *tsrc, IShaderSource *shdsrc
 		break;
 	case NDT_MESH:
 	case NDT_NODEBOX:
+		if (alpha == 255 && textureAlphaCheck(tsrc, tdef, 6))
+			alpha = 0;
+
 		solidness = 0;
 		if (waving == 1)
 			material_type = TILE_MATERIAL_WAVING_PLANTS;
 		else if (waving == 2)
 			material_type = TILE_MATERIAL_WAVING_LEAVES;
 		else if (waving == 3)
-			material_type = TILE_MATERIAL_WAVING_LIQUID_BASIC;
+			material_type = (alpha == 255) ? TILE_MATERIAL_WAVING_LIQUID_OPAQUE :
+				TILE_MATERIAL_WAVING_LIQUID_BASIC;
+		else if (alpha == 255)
+			material_type = TILE_MATERIAL_OPAQUE;
 		break;
 	case NDT_TORCHLIKE:
 	case NDT_SIGNLIKE:
@@ -1353,6 +1395,7 @@ void NodeDefManager::applyTextureOverrides(const std::vector<TextureOverride> &o
 
 		ContentFeatures &nodedef = m_content_features[id];
 
+		// Override tiles
 		if (texture_override.hasTarget(OverrideTarget::TOP))
 			nodedef.tiledef[0].name = texture_override.texture;
 
@@ -1370,6 +1413,26 @@ void NodeDefManager::applyTextureOverrides(const std::vector<TextureOverride> &o
 
 		if (texture_override.hasTarget(OverrideTarget::FRONT))
 			nodedef.tiledef[5].name = texture_override.texture;
+
+
+		// Override special tiles, if applicable
+		if (texture_override.hasTarget(OverrideTarget::SPECIAL_1))
+			nodedef.tiledef_special[0].name = texture_override.texture;
+
+		if (texture_override.hasTarget(OverrideTarget::SPECIAL_2))
+			nodedef.tiledef_special[1].name = texture_override.texture;
+
+		if (texture_override.hasTarget(OverrideTarget::SPECIAL_3))
+			nodedef.tiledef_special[2].name = texture_override.texture;
+
+		if (texture_override.hasTarget(OverrideTarget::SPECIAL_4))
+			nodedef.tiledef_special[3].name = texture_override.texture;
+
+		if (texture_override.hasTarget(OverrideTarget::SPECIAL_5))
+			nodedef.tiledef_special[4].name = texture_override.texture;
+
+		if (texture_override.hasTarget(OverrideTarget::SPECIAL_6))
+			nodedef.tiledef_special[5].name = texture_override.texture;
 	}
 }
 
@@ -1416,7 +1479,7 @@ void NodeDefManager::serialize(std::ostream &os, u16 protocol_version) const
 		// strict version incompatibilities
 		std::ostringstream wrapper_os(std::ios::binary);
 		f->serialize(wrapper_os, protocol_version);
-		os2<<serializeString(wrapper_os.str());
+		os2<<serializeString16(wrapper_os.str());
 
 		// must not overflow
 		u16 next = count + 1;
@@ -1424,7 +1487,7 @@ void NodeDefManager::serialize(std::ostream &os, u16 protocol_version) const
 		count++;
 	}
 	writeU16(os, count);
-	os << serializeLongString(os2.str());
+	os << serializeString32(os2.str());
 }
 
 
@@ -1435,13 +1498,13 @@ void NodeDefManager::deSerialize(std::istream &is)
 	if (version != 1)
 		throw SerializationError("unsupported NodeDefinitionManager version");
 	u16 count = readU16(is);
-	std::istringstream is2(deSerializeLongString(is), std::ios::binary);
+	std::istringstream is2(deSerializeString32(is), std::ios::binary);
 	ContentFeatures f;
 	for (u16 n = 0; n < count; n++) {
 		u16 i = readU16(is2);
 
 		// Read it from the string wrapper
-		std::string wrapper = deSerializeString(is2);
+		std::string wrapper = deSerializeString16(is2);
 		std::istringstream wrapper_is(wrapper, std::ios::binary);
 		f.deSerialize(wrapper_is);
 
diff --git a/src/nodedef.h b/src/nodedef.h
index cf03abaae..66c21cc07 100644
--- a/src/nodedef.h
+++ b/src/nodedef.h
@@ -158,7 +158,6 @@ public:
 	int node_texture_size;
 	bool opaque_water;
 	bool connected_glass;
-	bool use_normal_texture;
 	bool enable_mesh_cache;
 	bool enable_minimap;
 
@@ -261,6 +260,11 @@ struct TileDef
 		NodeDrawType drawtype);
 };
 
+// Defines the number of special tiles per nodedef
+//
+// NOTE: When changing this value, the enum entries of OverrideTarget and
+//       parser in TextureOverrideSource must be updated so that all special
+//       tiles can be overridden.
 #define CF_SPECIAL_COUNT 6
 
 struct ContentFeatures
@@ -413,6 +417,7 @@ struct ContentFeatures
 	void reset();
 	void serialize(std::ostream &os, u16 protocol_version) const;
 	void deSerialize(std::istream &is);
+
 	/*!
 	 * Since vertex alpha is no longer supported, this method
 	 * adds opacity directly to the texture pixels.
@@ -422,9 +427,36 @@ struct ContentFeatures
 	 */
 	void correctAlpha(TileDef *tiles, int length);
 
+#ifndef SERVER
+	/*
+	 * Checks if any tile texture has any transparent pixels.
+	 * Prints a warning and returns true if that is the case, false otherwise.
+	 * This is supposed to be used for use_texture_alpha backwards compatibility.
+	 */
+	bool textureAlphaCheck(ITextureSource *tsrc, const TileDef *tiles,
+		int length);
+#endif
+	
+
 	/*
 		Some handy methods
 	*/
+	bool needsBackfaceCulling() const
+	{
+		switch (drawtype) {
+		case NDT_TORCHLIKE:
+		case NDT_SIGNLIKE:
+		case NDT_FIRELIKE:
+		case NDT_RAILLIKE:
+		case NDT_PLANTLIKE:
+		case NDT_PLANTLIKE_ROOTED:
+		case NDT_MESH:
+			return false;
+		default:
+			return true;
+		}
+	}
+
 	bool isLiquid() const{
 		return (liquid_type != LIQUID_NONE);
 	}
diff --git a/src/nodemetadata.cpp b/src/nodemetadata.cpp
index b84ffc8cb..6447c8785 100644
--- a/src/nodemetadata.cpp
+++ b/src/nodemetadata.cpp
@@ -49,8 +49,8 @@ void NodeMetadata::serialize(std::ostream &os, u8 version, bool disk) const
 		if (!disk && priv)
 			continue;
 
-		os << serializeString(sv.first);
-		os << serializeLongString(sv.second);
+		os << serializeString16(sv.first);
+		os << serializeString32(sv.second);
 		if (version >= 2)
 			writeU8(os, (priv) ? 1 : 0);
 	}
@@ -63,8 +63,8 @@ void NodeMetadata::deSerialize(std::istream &is, u8 version)
 	clear();
 	int num_vars = readU32(is);
 	for(int i=0; i<num_vars; i++){
-		std::string name = deSerializeString(is);
-		std::string var = deSerializeLongString(is);
+		std::string name = deSerializeString16(is);
+		std::string var = deSerializeString32(is);
 		m_stringvars[name] = var;
 		if (version >= 2) {
 			if (readU8(is) == 1)
diff --git a/src/noise.cpp b/src/noise.cpp
index 5a1d989cb..e16564b05 100644
--- a/src/noise.cpp
+++ b/src/noise.cpp
@@ -424,7 +424,7 @@ float NoisePerlin3D(NoiseParams *np, float x, float y, float z, s32 seed)
 
 Noise::Noise(NoiseParams *np_, s32 seed, u32 sx, u32 sy, u32 sz)
 {
-	memcpy(&np, np_, sizeof(np));
+	np = *np_;
 	this->seed = seed;
 	this->sx   = sx;
 	this->sy   = sy;
diff --git a/src/noise.h b/src/noise.h
index 7b5e83251..613879890 100644
--- a/src/noise.h
+++ b/src/noise.h
@@ -29,6 +29,13 @@
 #include "exceptions.h"
 #include "util/string.h"
 
+#if defined(RANDOM_MIN)
+#undef RANDOM_MIN
+#endif
+#if defined(RANDOM_MAX)
+#undef RANDOM_MAX
+#endif
+
 extern FlagDesc flagdesc_noiseparams[];
 
 // Note: this class is not polymorphic so that its high level of
diff --git a/src/object_properties.cpp b/src/object_properties.cpp
index 8d51bcbfa..f31773060 100644
--- a/src/object_properties.cpp
+++ b/src/object_properties.cpp
@@ -70,6 +70,7 @@ std::string ObjectProperties::dump()
 	os << ", use_texture_alpha=" << use_texture_alpha;
 	os << ", damage_texture_modifier=" << damage_texture_modifier;
 	os << ", shaded=" << shaded;
+	os << ", show_on_minimap=" << show_on_minimap;
 	return os.str();
 }
 
@@ -84,11 +85,11 @@ void ObjectProperties::serialize(std::ostream &os) const
 	writeV3F32(os, selectionbox.MinEdge);
 	writeV3F32(os, selectionbox.MaxEdge);
 	writeU8(os, pointable);
-	os << serializeString(visual);
+	os << serializeString16(visual);
 	writeV3F32(os, visual_size);
 	writeU16(os, textures.size());
 	for (const std::string &texture : textures) {
-		os << serializeString(texture);
+		os << serializeString16(texture);
 	}
 	writeV2S16(os, spritediv);
 	writeV2S16(os, initial_sprite_basepos);
@@ -96,7 +97,7 @@ void ObjectProperties::serialize(std::ostream &os) const
 	writeU8(os, makes_footstep_sound);
 	writeF32(os, automatic_rotate);
 	// Added in protocol version 14
-	os << serializeString(mesh);
+	os << serializeString16(mesh);
 	writeU16(os, colors.size());
 	for (video::SColor color : colors) {
 		writeARGB8(os, color);
@@ -106,18 +107,19 @@ void ObjectProperties::serialize(std::ostream &os) const
 	writeU8(os, automatic_face_movement_dir);
 	writeF32(os, automatic_face_movement_dir_offset);
 	writeU8(os, backface_culling);
-	os << serializeString(nametag);
+	os << serializeString16(nametag);
 	writeARGB8(os, nametag_color);
 	writeF32(os, automatic_face_movement_max_rotation_per_sec);
-	os << serializeString(infotext);
-	os << serializeString(wield_item);
+	os << serializeString16(infotext);
+	os << serializeString16(wield_item);
 	writeS8(os, glow);
 	writeU16(os, breath_max);
 	writeF32(os, eye_height);
 	writeF32(os, zoom_fov);
 	writeU8(os, use_texture_alpha);
-	os << serializeString(damage_texture_modifier);
+	os << serializeString16(damage_texture_modifier);
 	writeU8(os, shaded);
+	writeU8(os, show_on_minimap);
 
 	// Add stuff only at the bottom.
 	// Never remove anything, because we don't want new versions of this
@@ -137,19 +139,19 @@ void ObjectProperties::deSerialize(std::istream &is)
 	selectionbox.MinEdge = readV3F32(is);
 	selectionbox.MaxEdge = readV3F32(is);
 	pointable = readU8(is);
-	visual = deSerializeString(is);
+	visual = deSerializeString16(is);
 	visual_size = readV3F32(is);
 	textures.clear();
 	u32 texture_count = readU16(is);
 	for (u32 i = 0; i < texture_count; i++){
-		textures.push_back(deSerializeString(is));
+		textures.push_back(deSerializeString16(is));
 	}
 	spritediv = readV2S16(is);
 	initial_sprite_basepos = readV2S16(is);
 	is_visible = readU8(is);
 	makes_footstep_sound = readU8(is);
 	automatic_rotate = readF32(is);
-	mesh = deSerializeString(is);
+	mesh = deSerializeString16(is);
 	colors.clear();
 	u32 color_count = readU16(is);
 	for (u32 i = 0; i < color_count; i++){
@@ -160,21 +162,25 @@ void ObjectProperties::deSerialize(std::istream &is)
 	automatic_face_movement_dir = readU8(is);
 	automatic_face_movement_dir_offset = readF32(is);
 	backface_culling = readU8(is);
-	nametag = deSerializeString(is);
+	nametag = deSerializeString16(is);
 	nametag_color = readARGB8(is);
 	automatic_face_movement_max_rotation_per_sec = readF32(is);
-	infotext = deSerializeString(is);
-	wield_item = deSerializeString(is);
+	infotext = deSerializeString16(is);
+	wield_item = deSerializeString16(is);
 	glow = readS8(is);
 	breath_max = readU16(is);
 	eye_height = readF32(is);
 	zoom_fov = readF32(is);
 	use_texture_alpha = readU8(is);
 	try {
-		damage_texture_modifier = deSerializeString(is);
+		damage_texture_modifier = deSerializeString16(is);
 		u8 tmp = readU8(is);
 		if (is.eof())
-			throw SerializationError("");
+			return;
 		shaded = tmp;
+		tmp = readU8(is);
+		if (is.eof())
+			return;
+		show_on_minimap = tmp;
 	} catch (SerializationError &e) {}
 }
diff --git a/src/object_properties.h b/src/object_properties.h
index f010c1daf..adb483527 100644
--- a/src/object_properties.h
+++ b/src/object_properties.h
@@ -62,6 +62,7 @@ struct ObjectProperties
 	float zoom_fov = 0.0f;
 	bool use_texture_alpha = false;
 	bool shaded = true;
+	bool show_on_minimap = false;
 
 	ObjectProperties();
 	std::string dump();
diff --git a/src/particles.cpp b/src/particles.cpp
index fd81238dc..14c987958 100644
--- a/src/particles.cpp
+++ b/src/particles.cpp
@@ -28,7 +28,7 @@ void ParticleParameters::serialize(std::ostream &os, u16 protocol_ver) const
 	writeF32(os, expirationtime);
 	writeF32(os, size);
 	writeU8(os, collisiondetection);
-	os << serializeLongString(texture);
+	os << serializeString32(texture);
 	writeU8(os, vertical);
 	writeU8(os, collision_removal);
 	animation.serialize(os, 6); /* NOT the protocol ver */
@@ -47,7 +47,7 @@ void ParticleParameters::deSerialize(std::istream &is, u16 protocol_ver)
 	expirationtime     = readF32(is);
 	size               = readF32(is);
 	collisiondetection = readU8(is);
-	texture            = deSerializeLongString(is);
+	texture            = deSerializeString32(is);
 	vertical           = readU8(is);
 	collision_removal  = readU8(is);
 	animation.deSerialize(is, 6); /* NOT the protocol ver */
diff --git a/src/player.h b/src/player.h
index f1b848a2a..9a4a41fa6 100644
--- a/src/player.h
+++ b/src/player.h
@@ -57,8 +57,8 @@ struct PlayerControl
 		bool a_aux1,
 		bool a_sneak,
 		bool a_zoom,
-		bool a_LMB,
-		bool a_RMB,
+		bool a_dig,
+		bool a_place,
 		float a_pitch,
 		float a_yaw,
 		float a_sidew_move_joystick_axis,
@@ -73,8 +73,8 @@ struct PlayerControl
 		aux1 = a_aux1;
 		sneak = a_sneak;
 		zoom = a_zoom;
-		LMB = a_LMB;
-		RMB = a_RMB;
+		dig = a_dig;
+		place = a_place;
 		pitch = a_pitch;
 		yaw = a_yaw;
 		sidew_move_joystick_axis = a_sidew_move_joystick_axis;
@@ -88,8 +88,8 @@ struct PlayerControl
 	bool aux1 = false;
 	bool sneak = false;
 	bool zoom = false;
-	bool LMB = false;
-	bool RMB = false;
+	bool dig = false;
+	bool place = false;
 	float pitch = 0.0f;
 	float yaw = 0.0f;
 	float sidew_move_joystick_axis = 0.0f;
diff --git a/src/porting.cpp b/src/porting.cpp
index d902d3737..e7ed4e090 100644
--- a/src/porting.cpp
+++ b/src/porting.cpp
@@ -25,7 +25,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 
 #include "porting.h"
 
-#if defined(__FreeBSD__)  || defined(__NetBSD__) || defined(__DragonFly__)
+#if defined(__FreeBSD__)  || defined(__NetBSD__) || defined(__DragonFly__) || defined(__OpenBSD__)
 	#include <sys/types.h>
 	#include <sys/sysctl.h>
 	extern char **environ;
@@ -56,6 +56,10 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 	#include <crt_externs.h>
 #endif
 
+#if defined(__HAIKU__)
+        #include <FindDirectory.h>
+#endif
+
 #include "config.h"
 #include "debug.h"
 #include "filesys.h"
@@ -321,6 +325,12 @@ bool getCurrentExecPath(char *buf, size_t len)
 	return true;
 }
 
+#elif defined(__HAIKU__)
+
+bool getCurrentExecPath(char *buf, size_t len)
+{
+	return find_path(B_APP_IMAGE_SYMBOL, B_FIND_PATH_IMAGE_PATH, NULL, buf, len) == B_OK;
+}
 
 //// Solaris
 #elif defined(__sun) || defined(sun)
diff --git a/src/porting.h b/src/porting.h
index f50f0a950..c7adf12a2 100644
--- a/src/porting.h
+++ b/src/porting.h
@@ -309,6 +309,8 @@ inline const char *getPlatformName()
 	#else
 		"SunOS"
 	#endif
+#elif defined(__HAIKU__)
+	"Haiku"
 #elif defined(__CYGWIN__)
 	"Cygwin"
 #elif defined(__unix__) || defined(__unix)
diff --git a/src/script/common/c_content.cpp b/src/script/common/c_content.cpp
index 78c46f0e0..04f4c335c 100644
--- a/src/script/common/c_content.cpp
+++ b/src/script/common/c_content.cpp
@@ -57,6 +57,7 @@ void read_item_definition(lua_State* L, int index,
 			es_ItemType, ITEM_NONE);
 	getstringfield(L, index, "name", def.name);
 	getstringfield(L, index, "description", def.description);
+	getstringfield(L, index, "short_description", def.short_description);
 	getstringfield(L, index, "inventory_image", def.inventory_image);
 	getstringfield(L, index, "inventory_overlay", def.inventory_overlay);
 	getstringfield(L, index, "wield_image", def.wield_image);
@@ -143,6 +144,8 @@ void push_item_definition_full(lua_State *L, const ItemDefinition &i)
 	lua_setfield(L, -2, "name");
 	lua_pushstring(L, i.description.c_str());
 	lua_setfield(L, -2, "description");
+	lua_pushstring(L, i.short_description.c_str());
+	lua_setfield(L, -2, "short_description");
 	lua_pushstring(L, type.c_str());
 	lua_setfield(L, -2, "type");
 	lua_pushstring(L, i.inventory_image.c_str());
@@ -331,6 +334,7 @@ void read_object_properties(lua_State *L, int index,
 	getfloatfield(L, -1, "zoom_fov", prop->zoom_fov);
 	getboolfield(L, -1, "use_texture_alpha", prop->use_texture_alpha);
 	getboolfield(L, -1, "shaded", prop->shaded);
+	getboolfield(L, -1, "show_on_minimap", prop->show_on_minimap);
 
 	getstringfield(L, -1, "damage_texture_modifier", prop->damage_texture_modifier);
 }
@@ -419,6 +423,8 @@ void push_object_properties(lua_State *L, ObjectProperties *prop)
 	lua_setfield(L, -2, "shaded");
 	lua_pushlstring(L, prop->damage_texture_modifier.c_str(), prop->damage_texture_modifier.size());
 	lua_setfield(L, -2, "damage_texture_modifier");
+	lua_pushboolean(L, prop->show_on_minimap);
+	lua_setfield(L, -2, "show_on_minimap");
 }
 
 /******************************************************************************/
@@ -491,13 +497,11 @@ TileDef read_tiledef(lua_State *L, int index, u8 drawtype)
 }
 
 /******************************************************************************/
-ContentFeatures read_content_features(lua_State *L, int index)
+void read_content_features(lua_State *L, ContentFeatures &f, int index)
 {
 	if(index < 0)
 		index = lua_gettop(L) + 1 + index;
 
-	ContentFeatures f;
-
 	/* Cache existence of some callbacks */
 	lua_getfield(L, index, "on_construct");
 	if(!lua_isnil(L, -1)) f.has_on_construct = true;
@@ -800,7 +804,6 @@ ContentFeatures read_content_features(lua_State *L, int index)
 	getstringfield(L, index, "node_dig_prediction",
 		f.node_dig_prediction);
 
-	return f;
 }
 
 void push_content_features(lua_State *L, const ContentFeatures &c)
@@ -1977,9 +1980,10 @@ void push_hud_element(lua_State *L, HudElement *elem)
 HudElementStat read_hud_change(lua_State *L, HudElement *elem, void **value)
 {
 	HudElementStat stat = HUD_STAT_NUMBER;
+	std::string statstr;
 	if (lua_isstring(L, 3)) {
 		int statint;
-		std::string statstr = lua_tostring(L, 3);
+		statstr = lua_tostring(L, 3);
 		stat = string_to_enum(es_HudElementStat, statint, statstr) ?
 				(HudElementStat)statint : stat;
 	}
@@ -2007,6 +2011,8 @@ HudElementStat read_hud_change(lua_State *L, HudElement *elem, void **value)
 			break;
 		case HUD_STAT_ITEM:
 			elem->item = luaL_checknumber(L, 4);
+			if (elem->type == HUD_ELEM_WAYPOINT && statstr == "precision")
+				elem->item++;
 			*value = &elem->item;
 			break;
 		case HUD_STAT_DIR:
diff --git a/src/script/common/c_content.h b/src/script/common/c_content.h
index eeef71c36..08c74c292 100644
--- a/src/script/common/c_content.h
+++ b/src/script/common/c_content.h
@@ -67,7 +67,8 @@ struct collisionMoveResult;
 
 extern struct EnumString es_TileAnimationType[];
 
-ContentFeatures    read_content_features     (lua_State *L, int index);
+void               read_content_features     (lua_State *L, ContentFeatures &f,
+                                              int index);
 void               push_content_features     (lua_State *L,
                                               const ContentFeatures &c);
 
diff --git a/src/script/common/c_converter.cpp b/src/script/common/c_converter.cpp
index eb6ab5331..c00401b58 100644
--- a/src/script/common/c_converter.cpp
+++ b/src/script/common/c_converter.cpp
@@ -679,48 +679,3 @@ size_t write_array_slice_float(
 
 	return elem_index - 1;
 }
-
-
-size_t write_array_slice_u16(
-	lua_State *L,
-	int table_index,
-	u16 *data,
-	v3u16 data_size,
-	v3u16 slice_offset,
-	v3u16 slice_size)
-{
-	v3u16 pmin, pmax(data_size);
-
-	if (slice_offset.X > 0) {
-		slice_offset.X--;
-		pmin.X = slice_offset.X;
-		pmax.X = MYMIN(slice_offset.X + slice_size.X, data_size.X);
-	}
-
-	if (slice_offset.Y > 0) {
-		slice_offset.Y--;
-		pmin.Y = slice_offset.Y;
-		pmax.Y = MYMIN(slice_offset.Y + slice_size.Y, data_size.Y);
-	}
-
-	if (slice_offset.Z > 0) {
-		slice_offset.Z--;
-		pmin.Z = slice_offset.Z;
-		pmax.Z = MYMIN(slice_offset.Z + slice_size.Z, data_size.Z);
-	}
-
-	const u32 ystride = data_size.X;
-	const u32 zstride = data_size.X * data_size.Y;
-
-	u32 elem_index = 1;
-	for (u32 z = pmin.Z; z != pmax.Z; z++)
-	for (u32 y = pmin.Y; y != pmax.Y; y++)
-	for (u32 x = pmin.X; x != pmax.X; x++) {
-		u32 i = z * zstride + y * ystride + x;
-		lua_pushinteger(L, data[i]);
-		lua_rawseti(L, table_index, elem_index);
-		elem_index++;
-	}
-
-	return elem_index - 1;
-}
diff --git a/src/script/common/c_converter.h b/src/script/common/c_converter.h
index a4a7079fd..6ad6f3212 100644
--- a/src/script/common/c_converter.h
+++ b/src/script/common/c_converter.h
@@ -136,5 +136,3 @@ void                warn_if_field_exists(lua_State *L, int table,
 
 size_t write_array_slice_float(lua_State *L, int table_index, float *data,
 	v3u16 data_size, v3u16 slice_offset, v3u16 slice_size);
-size_t write_array_slice_u16(lua_State *L, int table_index, u16 *data,
-	v3u16 data_size, v3u16 slice_offset, v3u16 slice_size);
diff --git a/src/script/common/c_internal.cpp b/src/script/common/c_internal.cpp
index 6df1f8b7b..ad5f836c5 100644
--- a/src/script/common/c_internal.cpp
+++ b/src/script/common/c_internal.cpp
@@ -155,24 +155,28 @@ static void script_log(lua_State *L, const std::string &message,
 		infostream << script_get_backtrace(L) << std::endl;
 }
 
-void log_deprecated(lua_State *L, const std::string &message, int stack_depth)
+DeprecatedHandlingMode get_deprecated_handling_mode()
 {
 	static thread_local bool configured = false;
-	static thread_local bool do_log = false;
-	static thread_local bool do_error = false;
+	static thread_local DeprecatedHandlingMode ret = DeprecatedHandlingMode::Ignore;
 
 	// Only read settings on first call
 	if (!configured) {
 		std::string value = g_settings->get("deprecated_lua_api_handling");
 		if (value == "log") {
-			do_log = true;
+			ret = DeprecatedHandlingMode::Log;
 		} else if (value == "error") {
-			do_log = true;
-			do_error = true;
+			ret = DeprecatedHandlingMode::Error;
 		}
 		configured = true;
 	}
 
-	if (do_log)
-		script_log(L, message, warningstream, do_error, stack_depth);
+	return ret;
+}
+
+void log_deprecated(lua_State *L, const std::string &message, int stack_depth)
+{
+	DeprecatedHandlingMode mode = get_deprecated_handling_mode();
+	if (mode != DeprecatedHandlingMode::Ignore)
+		script_log(L, message, warningstream, mode == DeprecatedHandlingMode::Error, stack_depth);
 }
diff --git a/src/script/common/c_internal.h b/src/script/common/c_internal.h
index 442546332..452c2dd5e 100644
--- a/src/script/common/c_internal.h
+++ b/src/script/common/c_internal.h
@@ -114,5 +114,25 @@ void script_error(lua_State *L, int pcall_result, const char *mod, const char *f
 void script_run_callbacks_f(lua_State *L, int nargs,
 	RunCallbacksMode mode, const char *fxn);
 
+enum class DeprecatedHandlingMode {
+	Ignore,
+	Log,
+	Error
+};
+
+/**
+ * Reads `deprecated_lua_api_handling` in settings, returns cached value.
+ *
+ * @return DeprecatedHandlingMode
+ */
+DeprecatedHandlingMode get_deprecated_handling_mode();
+
+/**
+ * Handles a deprecation warning based on user settings
+ *
+ * @param L Lua State
+ * @param message The deprecation method
+ * @param stack_depth How far on the stack to the first user function (ie: not builtin or core)
+ */
 void log_deprecated(lua_State *L, const std::string &message,
 	int stack_depth=1);
diff --git a/src/script/common/helper.cpp b/src/script/common/helper.cpp
index f53a2b7e8..488144790 100644
--- a/src/script/common/helper.cpp
+++ b/src/script/common/helper.cpp
@@ -21,6 +21,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include <cmath>
 #include <sstream>
 #include <irr_v2d.h>
+#include <irr_v3d.h>
 #include "c_types.h"
 #include "c_internal.h"
 
@@ -54,17 +55,14 @@ template <> bool LuaHelper::readParam(lua_State *L, int index)
 	return lua_toboolean(L, index) != 0;
 }
 
-template <> bool LuaHelper::readParam(lua_State *L, int index, const bool &default_value)
+template <> s16 LuaHelper::readParam(lua_State *L, int index)
 {
-	if (lua_isnil(L, index))
-		return default_value;
-
-	return lua_toboolean(L, index) != 0;
+	return lua_tonumber(L, index);
 }
 
-template <> s16 LuaHelper::readParam(lua_State *L, int index)
+template <> int LuaHelper::readParam(lua_State *L, int index)
 {
-	return lua_tonumber(L, index);
+	return luaL_checkint(L, index);
 }
 
 template <> float LuaHelper::readParam(lua_State *L, int index)
@@ -105,6 +103,25 @@ template <> v2f LuaHelper::readParam(lua_State *L, int index)
 	return p;
 }
 
+template <> v3f LuaHelper::readParam(lua_State *L, int index)
+{
+	v3f p;
+	CHECK_POS_TAB(index);
+	lua_getfield(L, index, "x");
+	CHECK_POS_COORD("x");
+	p.X = readParam<float>(L, -1);
+	lua_pop(L, 1);
+	lua_getfield(L, index, "y");
+	CHECK_POS_COORD("y");
+	p.Y = readParam<float>(L, -1);
+	lua_pop(L, 1);
+	lua_getfield(L, index, "z");
+	CHECK_POS_COORD("z");
+	p.Z = readParam<float>(L, -1);
+	lua_pop(L, 1);
+	return p;
+}
+
 template <> std::string LuaHelper::readParam(lua_State *L, int index)
 {
 	size_t length;
@@ -113,16 +130,3 @@ template <> std::string LuaHelper::readParam(lua_State *L, int index)
 	result.assign(str, length);
 	return result;
 }
-
-template <>
-std::string LuaHelper::readParam(
-		lua_State *L, int index, const std::string &default_value)
-{
-	std::string result;
-	const char *str = lua_tostring(L, index);
-	if (str)
-		result.append(str);
-	else
-		result = default_value;
-	return result;
-}
diff --git a/src/script/common/helper.h b/src/script/common/helper.h
index d639d6e16..7a794dc9b 100644
--- a/src/script/common/helper.h
+++ b/src/script/common/helper.h
@@ -50,5 +50,8 @@ protected:
 	 * @return read value from Lua or default value if nil
 	 */
 	template <typename T>
-	static T readParam(lua_State *L, int index, const T &default_value);
+	static inline T readParam(lua_State *L, int index, const T &default_value)
+	{
+		return lua_isnoneornil(L, index) ? default_value : readParam<T>(L, index);
+	}
 };
diff --git a/src/script/cpp_api/s_security.cpp b/src/script/cpp_api/s_security.cpp
index 9d65819c0..d5db43db9 100644
--- a/src/script/cpp_api/s_security.cpp
+++ b/src/script/cpp_api/s_security.cpp
@@ -632,7 +632,11 @@ int ScriptApiSecurity::sl_g_loadfile(lua_State *L)
 {
 #ifndef SERVER
 	lua_rawgeti(L, LUA_REGISTRYINDEX, CUSTOM_RIDX_SCRIPTAPI);
+#if INDIRECT_SCRIPTAPI_RIDX
+	ScriptApiBase *script = (ScriptApiBase *) *(void**)(lua_touserdata(L, -1));
+#else
 	ScriptApiBase *script = (ScriptApiBase *) lua_touserdata(L, -1);
+#endif
 	lua_pop(L, 1);
 
 	// Client implementation
diff --git a/src/script/lua_api/l_base.cpp b/src/script/lua_api/l_base.cpp
index 011434845..fce6282a5 100644
--- a/src/script/lua_api/l_base.cpp
+++ b/src/script/lua_api/l_base.cpp
@@ -105,32 +105,21 @@ bool ModApiBase::registerFunction(lua_State *L, const char *name,
 	return true;
 }
 
-std::unordered_map<std::string, luaL_Reg> ModApiBase::m_deprecated_wrappers;
-bool ModApiBase::m_error_deprecated_calls = false;
-
-int ModApiBase::l_deprecated_function(lua_State *L)
+int ModApiBase::l_deprecated_function(lua_State *L, const char *good, const char *bad, lua_CFunction func)
 {
 	thread_local std::vector<u64> deprecated_logged;
 
+	DeprecatedHandlingMode dep_mode = get_deprecated_handling_mode();
+	if (dep_mode == DeprecatedHandlingMode::Ignore)
+		return func(L);
+
 	u64 start_time = porting::getTimeUs();
 	lua_Debug ar;
 
-	// Get function name for lookup
-	FATAL_ERROR_IF(!lua_getstack(L, 0, &ar), "lua_getstack() failed");
-	FATAL_ERROR_IF(!lua_getinfo(L, "n", &ar), "lua_getinfo() failed");
-
-	// Combine name with line and script backtrace
+	// Get caller name with line and script backtrace
 	FATAL_ERROR_IF(!lua_getstack(L, 1, &ar), "lua_getstack() failed");
 	FATAL_ERROR_IF(!lua_getinfo(L, "Sl", &ar), "lua_getinfo() failed");
 
-	// Get parent class to get the wrappers map
-	luaL_checktype(L, 1, LUA_TUSERDATA);
-	void *ud = lua_touserdata(L, 1);
-	ModApiBase *o = *(ModApiBase**)ud;
-
-	// New function and new function name
-	auto it = o->m_deprecated_wrappers.find(ar.name);
-
 	// Get backtrace and hash it to reduce the warning flood
 	std::string backtrace = ar.short_src;
 	backtrace.append(":").append(std::to_string(ar.currentline));
@@ -140,45 +129,16 @@ int ModApiBase::l_deprecated_function(lua_State *L)
 			== deprecated_logged.end()) {
 
 		deprecated_logged.emplace_back(hash);
-		warningstream << "Call to deprecated function '"  << ar.name << "', please use '"
-			<< it->second.name << "' at " << backtrace << std::endl;
+		warningstream << "Call to deprecated function '"  << bad << "', please use '"
+			<< good << "' at " << backtrace << std::endl;
 
-		if (m_error_deprecated_calls)
+		if (dep_mode == DeprecatedHandlingMode::Error)
 			script_error(L, LUA_ERRRUN, NULL, NULL);
 	}
 
 	u64 end_time = porting::getTimeUs();
 	g_profiler->avg("l_deprecated_function", end_time - start_time);
 
-	return it->second.func(L);
+	return func(L);
 }
 
-void ModApiBase::markAliasDeprecated(luaL_Reg *reg)
-{
-	std::string value = g_settings->get("deprecated_lua_api_handling");
-	m_error_deprecated_calls = value == "error";
-
-	if (!m_error_deprecated_calls && value != "log")
-		return;
-
-	const char *last_name = nullptr;
-	lua_CFunction last_func = nullptr;
-
-	// ! Null termination !
-	while (reg->func) {
-		if (last_func == reg->func) {
-			// Duplicate found
-			luaL_Reg original_reg;
-			// Do not inline struct. Breaks MSVC or is error-prone
-			original_reg.name = last_name;
-			original_reg.func = reg->func;
-			m_deprecated_wrappers.emplace(
-				std::pair<std::string, luaL_Reg>(reg->name, original_reg));
-			reg->func = l_deprecated_function;
-		}
-
-		last_func = reg->func;
-		last_name = reg->name;
-		++reg;
-	}
-}
diff --git a/src/script/lua_api/l_base.h b/src/script/lua_api/l_base.h
index 0cbee7756..9ba50dabf 100644
--- a/src/script/lua_api/l_base.h
+++ b/src/script/lua_api/l_base.h
@@ -42,7 +42,6 @@ class Environment;
 class ServerInventoryManager;
 
 class ModApiBase : protected LuaHelper {
-
 public:
 	static ScriptApiBase*   getScriptApiBase(lua_State *L);
 	static Server*          getServer(lua_State *L);
@@ -76,10 +75,18 @@ public:
 			lua_CFunction func,
 			int top);
 
-	static int l_deprecated_function(lua_State *L);
-	static void markAliasDeprecated(luaL_Reg *reg);
-private:
-	// <old_name> = { <new_name>, <new_function> }
-	static std::unordered_map<std::string, luaL_Reg> m_deprecated_wrappers;
-	static bool m_error_deprecated_calls;
+	/**
+	 * A wrapper for deprecated functions.
+	 *
+	 * When called, handles the deprecation according to user settings and then calls `func`.
+	 *
+	 * @throws Lua Error if required by the user settings.
+	 *
+	 * @param L Lua state
+	 * @param good Name of good function/method
+	 * @param bad Name of deprecated function/method
+	 * @param func Actual implementation of function
+	 * @return value from `func`
+	 */
+	static int l_deprecated_function(lua_State *L, const char *good, const char *bad, lua_CFunction func);
 };
diff --git a/src/script/lua_api/l_camera.cpp b/src/script/lua_api/l_camera.cpp
index bfa60be67..40251154c 100644
--- a/src/script/lua_api/l_camera.cpp
+++ b/src/script/lua_api/l_camera.cpp
@@ -63,7 +63,8 @@ int LuaCamera::l_set_camera_mode(lua_State *L)
 		return 0;
 
 	camera->setCameraMode((CameraMode)((int)lua_tonumber(L, 2)));
-	playercao->setVisible(camera->getCameraMode() > CAMERA_MODE_FIRST);
+	// Make the player visible depending on camera mode.
+	playercao->updateMeshCulling();
 	playercao->setChildrenVisible(camera->getCameraMode() > CAMERA_MODE_FIRST);
 	return 0;
 }
diff --git a/src/script/lua_api/l_env.cpp b/src/script/lua_api/l_env.cpp
index ee384ad10..dbb0a5ab7 100644
--- a/src/script/lua_api/l_env.cpp
+++ b/src/script/lua_api/l_env.cpp
@@ -407,6 +407,46 @@ int ModApiEnvMod::l_get_node_light(lua_State *L)
 	return 1;
 }
 
+
+// get_natural_light(pos, timeofday)
+// pos = {x=num, y=num, z=num}
+// timeofday: nil = current time, 0 = night, 0.5 = day
+int ModApiEnvMod::l_get_natural_light(lua_State *L)
+{
+	GET_ENV_PTR;
+
+	v3s16 pos = read_v3s16(L, 1);
+
+	bool is_position_ok;
+	MapNode n = env->getMap().getNode(pos, &is_position_ok);
+	if (!is_position_ok)
+		return 0;
+
+	// If the daylight is 0, nothing needs to be calculated
+	u8 daylight = n.param1 & 0x0f;
+	if (daylight == 0) {
+		lua_pushinteger(L, 0);
+		return 1;
+	}
+
+	u32 time_of_day;
+	if (lua_isnumber(L, 2)) {
+		time_of_day = 24000.0 * lua_tonumber(L, 2);
+		time_of_day %= 24000;
+	} else {
+		time_of_day = env->getTimeOfDay();
+	}
+	u32 dnr = time_to_daynight_ratio(time_of_day, true);
+
+	// If it's the same as the artificial light, the sunlight needs to be
+	// searched for because the value may not emanate from the sun
+	if (daylight == n.param1 >> 4)
+		daylight = env->findSunlight(pos);
+
+	lua_pushinteger(L, dnr * daylight / 1000);
+	return 1;
+}
+
 // place_node(pos, node)
 // pos = {x=num, y=num, z=num}
 int ModApiEnvMod::l_place_node(lua_State *L)
@@ -711,8 +751,9 @@ int ModApiEnvMod::l_set_timeofday(lua_State *L)
 
 	// Do it
 	float timeofday_f = readParam<float>(L, 1);
-	sanity_check(timeofday_f >= 0.0 && timeofday_f <= 1.0);
-	int timeofday_mh = (int)(timeofday_f * 24000.0);
+	luaL_argcheck(L, timeofday_f >= 0.0f && timeofday_f <= 1.0f, 1,
+		"value must be between 0 and 1");
+	int timeofday_mh = (int)(timeofday_f * 24000.0f);
 	// This should be set directly in the environment but currently
 	// such changes aren't immediately sent to the clients, so call
 	// the server instead.
@@ -1498,9 +1539,9 @@ int ModApiEnvMod::l_get_translated_string(lua_State * L)
 	GET_ENV_PTR;
 	std::string lang_code = luaL_checkstring(L, 1);
 	std::string string = luaL_checkstring(L, 2);
-	getServer(L)->loadTranslationLanguage(lang_code);
-	string = wide_to_utf8(translate_string(utf8_to_wide(string),
-			&(*g_server_translations)[lang_code]));
+
+	auto *translations = getServer(L)->getTranslationLanguage(lang_code);
+	string = wide_to_utf8(translate_string(utf8_to_wide(string), translations));
 	lua_pushstring(L, string.c_str());
 	return 1;
 }
@@ -1516,6 +1557,7 @@ void ModApiEnvMod::Initialize(lua_State *L, int top)
 	API_FCT(get_node);
 	API_FCT(get_node_or_nil);
 	API_FCT(get_node_light);
+	API_FCT(get_natural_light);
 	API_FCT(place_node);
 	API_FCT(dig_node);
 	API_FCT(punch_node);
diff --git a/src/script/lua_api/l_env.h b/src/script/lua_api/l_env.h
index e1b89494b..ad9a0f509 100644
--- a/src/script/lua_api/l_env.h
+++ b/src/script/lua_api/l_env.h
@@ -56,6 +56,11 @@ private:
 	// timeofday: nil = current time, 0 = night, 0.5 = day
 	static int l_get_node_light(lua_State *L);
 
+	// get_natural_light(pos, timeofday)
+	// pos = {x=num, y=num, z=num}
+	// timeofday: nil = current time, 0 = night, 0.5 = day
+	static int l_get_natural_light(lua_State *L);
+
 	// place_node(pos, node)
 	// pos = {x=num, y=num, z=num}
 	static int l_place_node(lua_State *L);
diff --git a/src/script/lua_api/l_http.cpp b/src/script/lua_api/l_http.cpp
index 84837e71b..5a28cb369 100644
--- a/src/script/lua_api/l_http.cpp
+++ b/src/script/lua_api/l_http.cpp
@@ -49,17 +49,40 @@ void ModApiHttp::read_http_fetch_request(lua_State *L, HTTPFetchRequest &req)
 	req.multipart = getboolfield_default(L, 1, "multipart", false);
 	req.timeout = getintfield_default(L, 1, "timeout", 3) * 1000;
 
-	// post_data: if table, post form data, otherwise raw data
+	lua_getfield(L, 1, "method");
+	if (lua_isstring(L, -1)) {
+		std::string mth = getstringfield_default(L, 1, "method", "");
+		if (mth == "GET")
+			req.method = HTTP_GET;
+		else if (mth == "POST")
+			req.method = HTTP_POST;
+		else if (mth == "PUT")
+			req.method = HTTP_PUT;
+		else if (mth == "DELETE")
+			req.method = HTTP_DELETE;
+	}
+	lua_pop(L, 1);
+
+	// post_data: if table, post form data, otherwise raw data DEPRECATED use data and method instead
 	lua_getfield(L, 1, "post_data");
+	if (lua_isnil(L, 2)) {
+		lua_pop(L, 1);
+		lua_getfield(L, 1, "data");
+	}
+	else {
+		req.method = HTTP_POST;
+	}
+
 	if (lua_istable(L, 2)) {
 		lua_pushnil(L);
 		while (lua_next(L, 2) != 0) {
-			req.post_fields[readParam<std::string>(L, -2)] = readParam<std::string>(L, -1);
+			req.fields[readParam<std::string>(L, -2)] = readParam<std::string>(L, -1);
 			lua_pop(L, 1);
 		}
 	} else if (lua_isstring(L, 2)) {
-		req.post_data = readParam<std::string>(L, 2);
+		req.raw_data = readParam<std::string>(L, 2);
 	}
+
 	lua_pop(L, 1);
 
 	lua_getfield(L, 1, "extra_headers");
diff --git a/src/script/lua_api/l_http.h b/src/script/lua_api/l_http.h
index de6e51b37..c3a2a5276 100644
--- a/src/script/lua_api/l_http.h
+++ b/src/script/lua_api/l_http.h
@@ -32,10 +32,10 @@ private:
 	static void read_http_fetch_request(lua_State *L, HTTPFetchRequest &req);
 	static void push_http_fetch_result(lua_State *L, HTTPFetchResult &res, bool completed = true);
 
-	// http_fetch_sync({url=, timeout=, post_data=})
+	// http_fetch_sync({url=, timeout=, data=})
 	static int l_http_fetch_sync(lua_State *L);
 
-	// http_fetch_async({url=, timeout=, post_data=})
+	// http_fetch_async({url=, timeout=, data=})
 	static int l_http_fetch_async(lua_State *L);
 
 	// http_fetch_async_get(handle)
diff --git a/src/script/lua_api/l_internal.h b/src/script/lua_api/l_internal.h
index a86eeaf79..672e535ca 100644
--- a/src/script/lua_api/l_internal.h
+++ b/src/script/lua_api/l_internal.h
@@ -29,7 +29,16 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "common/c_internal.h"
 
 #define luamethod(class, name) {#name, class::l_##name}
-#define luamethod_aliased(class, name, alias) {#name, class::l_##name}, {#alias, class::l_##name}
+
+#define luamethod_dep(class, good, bad)                                     \
+		{#bad, [](lua_State *L) -> int {                                    \
+			return l_deprecated_function(L, #good, #bad, &class::l_##good); \
+		}}
+
+#define luamethod_aliased(class, good, bad) \
+		luamethod(class, good),               \
+		luamethod_dep(class, good, bad)
+
 #define API_FCT(name) registerFunction(L, #name, l_##name, top)
 
 // For future use
diff --git a/src/script/lua_api/l_inventory.cpp b/src/script/lua_api/l_inventory.cpp
index e41b5cb41..434d0a76c 100644
--- a/src/script/lua_api/l_inventory.cpp
+++ b/src/script/lua_api/l_inventory.cpp
@@ -280,6 +280,7 @@ int InvRef::l_set_lists(lua_State *L)
 	Server *server = getServer(L);
 
 	lua_pushnil(L);
+	luaL_checktype(L, 2, LUA_TTABLE);
 	while (lua_next(L, 2)) {
 		const char *listname = lua_tostring(L, -2);
 		read_inventory_list(L, -1, tempInv, listname, server);
diff --git a/src/script/lua_api/l_item.cpp b/src/script/lua_api/l_item.cpp
index bea7d122f..b098eccf0 100644
--- a/src/script/lua_api/l_item.cpp
+++ b/src/script/lua_api/l_item.cpp
@@ -198,6 +198,16 @@ int LuaItemStack::l_get_description(lua_State *L)
 	return 1;
 }
 
+// get_short_description(self)
+int LuaItemStack::l_get_short_description(lua_State *L)
+{
+	NO_MAP_LOCK_REQUIRED;
+	LuaItemStack *o = checkobject(L, 1);
+	std::string desc = o->m_stack.getShortDescription(getGameDef(L)->idef());
+	lua_pushstring(L, desc.c_str());
+	return 1;
+}
+
 // clear(self) -> true
 int LuaItemStack::l_clear(lua_State *L)
 {
@@ -498,6 +508,7 @@ const luaL_Reg LuaItemStack::methods[] = {
 	luamethod(LuaItemStack, get_metadata),
 	luamethod(LuaItemStack, set_metadata),
 	luamethod(LuaItemStack, get_description),
+	luamethod(LuaItemStack, get_short_description),
 	luamethod(LuaItemStack, clear),
 	luamethod(LuaItemStack, replace),
 	luamethod(LuaItemStack, to_string),
@@ -564,7 +575,8 @@ int ModApiItemMod::l_register_item_raw(lua_State *L)
 
 	// Read the node definition (content features) and register it
 	if (def.type == ITEM_NODE) {
-		ContentFeatures f = read_content_features(L, table);
+		ContentFeatures f;
+		read_content_features(L, f, table);
 		// when a mod reregisters ignore, only texture changes and such should
 		// be done
 		if (f.name == "ignore")
diff --git a/src/script/lua_api/l_item.h b/src/script/lua_api/l_item.h
index 98744c071..16878c101 100644
--- a/src/script/lua_api/l_item.h
+++ b/src/script/lua_api/l_item.h
@@ -72,6 +72,9 @@ private:
 	// get_description(self)
 	static int l_get_description(lua_State *L);
 
+	// get_short_description(self)
+	static int l_get_short_description(lua_State *L);
+
 	// clear(self) -> true
 	static int l_clear(lua_State *L);
 
diff --git a/src/script/lua_api/l_localplayer.cpp b/src/script/lua_api/l_localplayer.cpp
index 1cb6ff156..3f4147227 100644
--- a/src/script/lua_api/l_localplayer.cpp
+++ b/src/script/lua_api/l_localplayer.cpp
@@ -303,8 +303,8 @@ int LuaLocalPlayer::l_get_control(lua_State *L)
 	set("aux1", c.aux1);
 	set("sneak", c.sneak);
 	set("zoom", c.zoom);
-	set("LMB", c.LMB);
-	set("RMB", c.RMB);
+	set("dig", c.dig);
+	set("place", c.place);
 
 	return 1;
 }
diff --git a/src/script/lua_api/l_mainmenu.cpp b/src/script/lua_api/l_mainmenu.cpp
index f32c477c2..0aa2760e9 100644
--- a/src/script/lua_api/l_mainmenu.cpp
+++ b/src/script/lua_api/l_mainmenu.cpp
@@ -29,7 +29,6 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "porting.h"
 #include "filesys.h"
 #include "convert_json.h"
-#include "content/packages.h"
 #include "content/content.h"
 #include "content/subgames.h"
 #include "serverlist.h"
@@ -618,7 +617,7 @@ int ModApiMainMenu::l_create_world(lua_State *L)
 
 	std::string path = porting::path_user + DIR_DELIM
 			"worlds" + DIR_DELIM
-			+ name;
+			+ sanitizeDirName(name, "world_");
 
 	std::vector<SubgameSpec> games = getAvailableGames();
 
@@ -626,10 +625,11 @@ int ModApiMainMenu::l_create_world(lua_State *L)
 			(gameidx < (int) games.size())) {
 
 		// Create world if it doesn't exist
-		if (!loadGameConfAndInitWorld(path, games[gameidx])) {
-			lua_pushstring(L, "Failed to initialize world");
-		} else {
+		try {
+			loadGameConfAndInitWorld(path, name, games[gameidx], true);
 			lua_pushnil(L);
+		} catch (const BaseException &e) {
+			lua_pushstring(L, (std::string("Failed to initialize world: ") + e.what()).c_str());
 		}
 	} else {
 		lua_pushstring(L, "Invalid game index");
diff --git a/src/script/lua_api/l_minimap.cpp b/src/script/lua_api/l_minimap.cpp
index 5fba76eb8..3bbb6e5e3 100644
--- a/src/script/lua_api/l_minimap.cpp
+++ b/src/script/lua_api/l_minimap.cpp
@@ -89,7 +89,7 @@ int LuaMinimap::l_get_mode(lua_State *L)
 	LuaMinimap *ref = checkobject(L, 1);
 	Minimap *m = getobject(ref);
 
-	lua_pushinteger(L, m->getMinimapMode());
+	lua_pushinteger(L, m->getModeIndex());
 	return 1;
 }
 
@@ -98,13 +98,11 @@ int LuaMinimap::l_set_mode(lua_State *L)
 	LuaMinimap *ref = checkobject(L, 1);
 	Minimap *m = getobject(ref);
 
-	s32 mode = lua_tointeger(L, 2);
-	if (mode < MINIMAP_MODE_OFF ||
-		mode >= MINIMAP_MODE_COUNT) {
+	u32 mode = lua_tointeger(L, 2);
+	if (mode >= m->getMaxModeIndex())
 		return 0;
-	}
 
-	m->setMinimapMode((MinimapMode) mode);
+	m->setModeIndex(mode);
 	return 1;
 }
 
@@ -140,8 +138,11 @@ int LuaMinimap::l_show(lua_State *L)
 	LuaMinimap *ref = checkobject(L, 1);
 	Minimap *m = getobject(ref);
 
-	if (m->getMinimapMode() == MINIMAP_MODE_OFF)
-		m->setMinimapMode(MINIMAP_MODE_SURFACEx1);
+	// This is not very adapted to new minimap mode management. Btw, tried
+	// to do something compatible.
+
+	if (m->getModeIndex() == 0 && m->getMaxModeIndex() > 0)
+		m->setModeIndex(1);
 
 	client->showMinimap(true);
 	return 1;
@@ -155,8 +156,11 @@ int LuaMinimap::l_hide(lua_State *L)
 	LuaMinimap *ref = checkobject(L, 1);
 	Minimap *m = getobject(ref);
 
-	if (m->getMinimapMode() != MINIMAP_MODE_OFF)
-		m->setMinimapMode(MINIMAP_MODE_OFF);
+	// This is not very adapted to new minimap mode management. Btw, tried
+	// to do something compatible.
+
+	if (m->getModeIndex() != 0)
+		m->setModeIndex(0);
 
 	client->showMinimap(false);
 	return 1;
diff --git a/src/script/lua_api/l_noise.cpp b/src/script/lua_api/l_noise.cpp
index 9aeb15709..e0861126a 100644
--- a/src/script/lua_api/l_noise.cpp
+++ b/src/script/lua_api/l_noise.cpp
@@ -122,7 +122,6 @@ void LuaPerlinNoise::Register(lua_State *L)
 
 	lua_pop(L, 1);
 
-	markAliasDeprecated(methods);
 	luaL_openlib(L, 0, methods, 0);
 	lua_pop(L, 1);
 
@@ -381,7 +380,6 @@ void LuaPerlinNoiseMap::Register(lua_State *L)
 
 	lua_pop(L, 1);
 
-	markAliasDeprecated(methods);
 	luaL_openlib(L, 0, methods, 0);
 	lua_pop(L, 1);
 
diff --git a/src/script/lua_api/l_object.cpp b/src/script/lua_api/l_object.cpp
index e7394133a..bc59bd55c 100644
--- a/src/script/lua_api/l_object.cpp
+++ b/src/script/lua_api/l_object.cpp
@@ -44,43 +44,44 @@ ObjectRef* ObjectRef::checkobject(lua_State *L, int narg)
 {
 	luaL_checktype(L, narg, LUA_TUSERDATA);
 	void *ud = luaL_checkudata(L, narg, className);
-	if (!ud) luaL_typerror(L, narg, className);
+	if (ud == nullptr)
+		luaL_typerror(L, narg, className);
 	return *(ObjectRef**)ud;  // unbox pointer
 }
 
 ServerActiveObject* ObjectRef::getobject(ObjectRef *ref)
 {
-	ServerActiveObject *co = ref->m_object;
-	if (co && co->isGone())
-		return NULL;
-	return co;
+	ServerActiveObject *sao = ref->m_object;
+	if (sao && sao->isGone())
+		return nullptr;
+	return sao;
 }
 
 LuaEntitySAO* ObjectRef::getluaobject(ObjectRef *ref)
 {
-	ServerActiveObject *obj = getobject(ref);
-	if (obj == NULL)
-		return NULL;
-	if (obj->getType() != ACTIVEOBJECT_TYPE_LUAENTITY)
-		return NULL;
-	return (LuaEntitySAO*)obj;
+	ServerActiveObject *sao = getobject(ref);
+	if (sao == nullptr)
+		return nullptr;
+	if (sao->getType() != ACTIVEOBJECT_TYPE_LUAENTITY)
+		return nullptr;
+	return (LuaEntitySAO*)sao;
 }
 
 PlayerSAO* ObjectRef::getplayersao(ObjectRef *ref)
 {
-	ServerActiveObject *obj = getobject(ref);
-	if (obj == NULL)
-		return NULL;
-	if (obj->getType() != ACTIVEOBJECT_TYPE_PLAYER)
-		return NULL;
-	return (PlayerSAO*)obj;
+	ServerActiveObject *sao = getobject(ref);
+	if (sao == nullptr)
+		return nullptr;
+	if (sao->getType() != ACTIVEOBJECT_TYPE_PLAYER)
+		return nullptr;
+	return (PlayerSAO*)sao;
 }
 
 RemotePlayer *ObjectRef::getplayer(ObjectRef *ref)
 {
 	PlayerSAO *playersao = getplayersao(ref);
-	if (playersao == NULL)
-		return NULL;
+	if (playersao == nullptr)
+		return nullptr;
 	return playersao->getPlayer();
 }
 
@@ -88,9 +89,8 @@ RemotePlayer *ObjectRef::getplayer(ObjectRef *ref)
 
 // garbage collector
 int ObjectRef::gc_object(lua_State *L) {
-	ObjectRef *o = *(ObjectRef **)(lua_touserdata(L, 1));
-	//infostream<<"ObjectRef::gc_object: o="<<o<<std::endl;
-	delete o;
+	ObjectRef *obj = *(ObjectRef **)(lua_touserdata(L, 1));
+	delete obj;
 	return 0;
 }
 
@@ -100,29 +100,30 @@ int ObjectRef::l_remove(lua_State *L)
 	GET_ENV_PTR;
 
 	ObjectRef *ref = checkobject(L, 1);
-	ServerActiveObject *co = getobject(ref);
-	if (co == NULL)
+	ServerActiveObject *sao = getobject(ref);
+	if (sao == nullptr)
 		return 0;
-	if (co->getType() == ACTIVEOBJECT_TYPE_PLAYER)
+	if (sao->getType() == ACTIVEOBJECT_TYPE_PLAYER)
 		return 0;
 
-	co->clearChildAttachments();
-	co->clearParentAttachment();
+	sao->clearChildAttachments();
+	sao->clearParentAttachment();
 
-	verbosestream << "ObjectRef::l_remove(): id=" << co->getId() << std::endl;
-	co->m_pending_removal = true;
+	verbosestream << "ObjectRef::l_remove(): id=" << sao->getId() << std::endl;
+	sao->m_pending_removal = true;
 	return 0;
 }
 
 // get_pos(self)
-// returns: {x=num, y=num, z=num}
 int ObjectRef::l_get_pos(lua_State *L)
 {
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
-	ServerActiveObject *co = getobject(ref);
-	if (co == NULL) return 0;
-	push_v3f(L, co->getBasePosition() / BS);
+	ServerActiveObject *sao = getobject(ref);
+	if (sao == nullptr)
+		return 0;
+
+	push_v3f(L, sao->getBasePosition() / BS);
 	return 1;
 }
 
@@ -131,28 +132,29 @@ int ObjectRef::l_set_pos(lua_State *L)
 {
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
-	ServerActiveObject *co = getobject(ref);
-	if (co == NULL) return 0;
-	// pos
+	ServerActiveObject *sao = getobject(ref);
+	if (sao == nullptr)
+		return 0;
+
 	v3f pos = checkFloatPos(L, 2);
-	// Do it
-	co->setPos(pos);
+
+	sao->setPos(pos);
 	return 0;
 }
 
-// move_to(self, pos, continuous=false)
+// move_to(self, pos, continuous)
 int ObjectRef::l_move_to(lua_State *L)
 {
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
-	ServerActiveObject *co = getobject(ref);
-	if (co == NULL) return 0;
-	// pos
+	ServerActiveObject *sao = getobject(ref);
+	if (sao == nullptr)
+		return 0;
+
 	v3f pos = checkFloatPos(L, 2);
-	// continuous
 	bool continuous = readParam<bool>(L, 3);
-	// Do it
-	co->moveTo(pos, continuous);
+
+	sao->moveTo(pos, continuous);
 	return 0;
 }
 
@@ -162,32 +164,26 @@ int ObjectRef::l_punch(lua_State *L)
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
 	ObjectRef *puncher_ref = checkobject(L, 2);
-	ServerActiveObject *co = getobject(ref);
+	ServerActiveObject *sao = getobject(ref);
 	ServerActiveObject *puncher = getobject(puncher_ref);
-	if (!co || !puncher)
+	if (sao == nullptr || puncher == nullptr)
 		return 0;
-	v3f dir;
-	if (lua_type(L, 5) != LUA_TTABLE)
-		dir = co->getBasePosition() - puncher->getBasePosition();
-	else
-		dir = read_v3f(L, 5);
-	float time_from_last_punch = 1000000;
-	if (lua_isnumber(L, 3))
-		time_from_last_punch = lua_tonumber(L, 3);
+
+	float time_from_last_punch = readParam<float>(L, 3, 1000000.0f);
 	ToolCapabilities toolcap = read_tool_capabilities(L, 4);
-	dir.normalize();
+	v3f dir = readParam<v3f>(L, 5, sao->getBasePosition() - puncher->getBasePosition());
 
-	u16 src_original_hp = co->getHP();
+	dir.normalize();
+	u16 src_original_hp = sao->getHP();
 	u16 dst_origin_hp = puncher->getHP();
 
-	// Do it
-	u16 wear = co->punch(dir, &toolcap, puncher, time_from_last_punch);
+	u16 wear = sao->punch(dir, &toolcap, puncher, time_from_last_punch);
 	lua_pushnumber(L, wear);
 
 	// If the punched is a player, and its HP changed
-	if (src_original_hp != co->getHP() &&
-			co->getType() == ACTIVEOBJECT_TYPE_PLAYER) {
-		getServer(L)->SendPlayerHPOrDie((PlayerSAO *)co,
+	if (src_original_hp != sao->getHP() &&
+			sao->getType() == ACTIVEOBJECT_TYPE_PLAYER) {
+		getServer(L)->SendPlayerHPOrDie((PlayerSAO *)sao,
 				PlayerHPChangeReason(PlayerHPChangeReason::PLAYER_PUNCH, puncher));
 	}
 
@@ -195,45 +191,38 @@ int ObjectRef::l_punch(lua_State *L)
 	if (dst_origin_hp != puncher->getHP() &&
 			puncher->getType() == ACTIVEOBJECT_TYPE_PLAYER) {
 		getServer(L)->SendPlayerHPOrDie((PlayerSAO *)puncher,
-				PlayerHPChangeReason(PlayerHPChangeReason::PLAYER_PUNCH, co));
+				PlayerHPChangeReason(PlayerHPChangeReason::PLAYER_PUNCH, sao));
 	}
 	return 1;
 }
 
-// right_click(self, clicker); clicker = an another ObjectRef
+// right_click(self, clicker)
 int ObjectRef::l_right_click(lua_State *L)
 {
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
 	ObjectRef *ref2 = checkobject(L, 2);
-	ServerActiveObject *co = getobject(ref);
-	ServerActiveObject *co2 = getobject(ref2);
-	if (co == NULL) return 0;
-	if (co2 == NULL) return 0;
-	// Do it
-	co->rightClick(co2);
+	ServerActiveObject *sao = getobject(ref);
+	ServerActiveObject *sao2 = getobject(ref2);
+	if (sao == nullptr || sao2 == nullptr)
+		return 0;
+
+	sao->rightClick(sao2);
 	return 0;
 }
 
-// set_hp(self, hp)
-// hp = number of hitpoints (2 * number of hearts)
-// returns: nil
+// set_hp(self, hp, reason)
 int ObjectRef::l_set_hp(lua_State *L)
 {
 	NO_MAP_LOCK_REQUIRED;
-
-	// Get Object
 	ObjectRef *ref = checkobject(L, 1);
-	luaL_checknumber(L, 2);
-	ServerActiveObject *co = getobject(ref);
-	if (co == NULL)
+	ServerActiveObject *sao = getobject(ref);
+	if (sao == nullptr)
 		return 0;
 
-	// Get HP
-	int hp = lua_tonumber(L, 2);
-
-	// Get Reason
+	int hp = readParam<float>(L, 2);
 	PlayerHPChangeReason reason(PlayerHPChangeReason::SET_HP);
+
 	reason.from_mod = true;
 	if (lua_istable(L, 3)) {
 		lua_pushvalue(L, 3);
@@ -248,35 +237,28 @@ int ObjectRef::l_set_hp(lua_State *L)
 		reason.lua_reference = luaL_ref(L, LUA_REGISTRYINDEX);
 	}
 
-	// Do it
-	co->setHP(hp, reason);
-	if (co->getType() == ACTIVEOBJECT_TYPE_PLAYER)
-		getServer(L)->SendPlayerHPOrDie((PlayerSAO *)co, reason);
-
+	sao->setHP(hp, reason);
+	if (sao->getType() == ACTIVEOBJECT_TYPE_PLAYER)
+		getServer(L)->SendPlayerHPOrDie((PlayerSAO *)sao, reason);
 	if (reason.hasLuaReference())
 		luaL_unref(L, LUA_REGISTRYINDEX, reason.lua_reference);
-
-	// Return
 	return 0;
 }
 
 // get_hp(self)
-// returns: number of hitpoints (2 * number of hearts)
-// 0 if not applicable to this type of object
 int ObjectRef::l_get_hp(lua_State *L)
 {
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
-	ServerActiveObject *co = getobject(ref);
-	if (co == NULL) {
+	ServerActiveObject *sao = getobject(ref);
+	if (sao == nullptr) {
 		// Default hp is 1
 		lua_pushnumber(L, 1);
 		return 1;
 	}
-	int hp = co->getHP();
-	/*infostream<<"ObjectRef::l_get_hp(): id="<<co->getId()
-			<<" hp="<<hp<<std::endl;*/
-	// Return
+
+	int hp = sao->getHP();
+
 	lua_pushnumber(L, hp);
 	return 1;
 }
@@ -286,11 +268,12 @@ int ObjectRef::l_get_inventory(lua_State *L)
 {
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
-	ServerActiveObject *co = getobject(ref);
-	if (co == NULL) return 0;
-	// Do it
-	InventoryLocation loc = co->getInventoryLocation();
-	if (getServerInventoryMgr(L)->getInventory(loc) != NULL)
+	ServerActiveObject *sao = getobject(ref);
+	if (sao == nullptr)
+		return 0;
+
+	InventoryLocation loc = sao->getInventoryLocation();
+	if (getServerInventoryMgr(L)->getInventory(loc) != nullptr)
 		InvRef::create(L, loc);
 	else
 		lua_pushnil(L); // An object may have no inventory (nil)
@@ -302,11 +285,11 @@ int ObjectRef::l_get_wield_list(lua_State *L)
 {
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
-	ServerActiveObject *co = getobject(ref);
-	if (!co)
+	ServerActiveObject *sao = getobject(ref);
+	if (sao == nullptr)
 		return 0;
 
-	lua_pushstring(L, co->getWieldList().c_str());
+	lua_pushstring(L, sao->getWieldList().c_str());
 	return 1;
 }
 
@@ -315,11 +298,11 @@ int ObjectRef::l_get_wield_index(lua_State *L)
 {
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
-	ServerActiveObject *co = getobject(ref);
-	if (!co)
+	ServerActiveObject *sao = getobject(ref);
+	if (sao == nullptr)
 		return 0;
 
-	lua_pushinteger(L, co->getWieldIndex() + 1);
+	lua_pushinteger(L, sao->getWieldIndex() + 1);
 	return 1;
 }
 
@@ -328,31 +311,33 @@ int ObjectRef::l_get_wielded_item(lua_State *L)
 {
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
-	ServerActiveObject *co = getobject(ref);
-	if (!co) {
+	ServerActiveObject *sao = getobject(ref);
+	if (sao == nullptr) {
 		// Empty ItemStack
 		LuaItemStack::create(L, ItemStack());
 		return 1;
 	}
 
 	ItemStack selected_item;
-	co->getWieldedItem(&selected_item, nullptr);
+	sao->getWieldedItem(&selected_item, nullptr);
 	LuaItemStack::create(L, selected_item);
 	return 1;
 }
 
-// set_wielded_item(self, itemstack or itemstring or table or nil)
+// set_wielded_item(self, item)
 int ObjectRef::l_set_wielded_item(lua_State *L)
 {
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
-	ServerActiveObject *co = getobject(ref);
-	if (co == NULL) return 0;
-	// Do it
+	ServerActiveObject *sao = getobject(ref);
+	if (sao == nullptr)
+		return 0;
+
 	ItemStack item = read_item(L, 2, getServer(L)->idef());
-	bool success = co->setWieldedItem(item);
-	if (success && co->getType() == ACTIVEOBJECT_TYPE_PLAYER) {
-		getServer(L)->SendInventory((PlayerSAO *)co, true);
+
+	bool success = sao->setWieldedItem(item);
+	if (success && sao->getType() == ACTIVEOBJECT_TYPE_PLAYER) {
+		getServer(L)->SendInventory((PlayerSAO *)sao, true);
 	}
 	lua_pushboolean(L, success);
 	return 1;
@@ -363,12 +348,14 @@ int ObjectRef::l_set_armor_groups(lua_State *L)
 {
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
-	ServerActiveObject *co = getobject(ref);
-	if (co == NULL) return 0;
-	// Do it
+	ServerActiveObject *sao = getobject(ref);
+	if (sao == nullptr)
+		return 0;
+
 	ItemGroupList groups;
+
 	read_groups(L, 2, groups);
-	co->setArmorGroups(groups);
+	sao->setArmorGroups(groups);
 	return 0;
 }
 
@@ -377,77 +364,11 @@ int ObjectRef::l_get_armor_groups(lua_State *L)
 {
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
-	ServerActiveObject *co = getobject(ref);
-	if (co == NULL)
+	ServerActiveObject *sao = getobject(ref);
+	if (sao == nullptr)
 		return 0;
-	// Do it
-	push_groups(L, co->getArmorGroups());
-	return 1;
-}
 
-// set_physics_override(self, physics_override_speed, physics_override_jump,
-//                      physics_override_gravity, sneak, sneak_glitch, new_move)
-int ObjectRef::l_set_physics_override(lua_State *L)
-{
-	NO_MAP_LOCK_REQUIRED;
-	ObjectRef *ref = checkobject(L, 1);
-	PlayerSAO *co = (PlayerSAO *) getobject(ref);
-	if (co == NULL) return 0;
-	// Do it
-	if (lua_istable(L, 2)) {
-		co->m_physics_override_speed = getfloatfield_default(
-				L, 2, "speed", co->m_physics_override_speed);
-		co->m_physics_override_jump = getfloatfield_default(
-				L, 2, "jump", co->m_physics_override_jump);
-		co->m_physics_override_gravity = getfloatfield_default(
-				L, 2, "gravity", co->m_physics_override_gravity);
-		co->m_physics_override_sneak = getboolfield_default(
-				L, 2, "sneak", co->m_physics_override_sneak);
-		co->m_physics_override_sneak_glitch = getboolfield_default(
-				L, 2, "sneak_glitch", co->m_physics_override_sneak_glitch);
-		co->m_physics_override_new_move = getboolfield_default(
-				L, 2, "new_move", co->m_physics_override_new_move);
-		co->m_physics_override_sent = false;
-	} else {
-		// old, non-table format
-		if (!lua_isnil(L, 2)) {
-			co->m_physics_override_speed = lua_tonumber(L, 2);
-			co->m_physics_override_sent = false;
-		}
-		if (!lua_isnil(L, 3)) {
-			co->m_physics_override_jump = lua_tonumber(L, 3);
-			co->m_physics_override_sent = false;
-		}
-		if (!lua_isnil(L, 4)) {
-			co->m_physics_override_gravity = lua_tonumber(L, 4);
-			co->m_physics_override_sent = false;
-		}
-	}
-	return 0;
-}
-
-// get_physics_override(self)
-int ObjectRef::l_get_physics_override(lua_State *L)
-{
-	NO_MAP_LOCK_REQUIRED;
-	ObjectRef *ref = checkobject(L, 1);
-	PlayerSAO *co = (PlayerSAO *)getobject(ref);
-	if (co == NULL)
-		return 0;
-	// Do it
-	lua_newtable(L);
-	lua_pushnumber(L, co->m_physics_override_speed);
-	lua_setfield(L, -2, "speed");
-	lua_pushnumber(L, co->m_physics_override_jump);
-	lua_setfield(L, -2, "jump");
-	lua_pushnumber(L, co->m_physics_override_gravity);
-	lua_setfield(L, -2, "gravity");
-	lua_pushboolean(L, co->m_physics_override_sneak);
-	lua_setfield(L, -2, "sneak");
-	lua_pushboolean(L, co->m_physics_override_sneak_glitch);
-	lua_setfield(L, -2, "sneak_glitch");
-	lua_pushboolean(L, co->m_physics_override_new_move);
-	lua_setfield(L, -2, "new_move");
+	push_groups(L, sao->getArmorGroups());
 	return 1;
 }
 
@@ -456,22 +377,16 @@ int ObjectRef::l_set_animation(lua_State *L)
 {
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
-	ServerActiveObject *co = getobject(ref);
-	if (co == NULL) return 0;
-	// Do it
-	v2f frames = v2f(1, 1);
-	if (!lua_isnil(L, 2))
-		frames = readParam<v2f>(L, 2);
-	float frame_speed = 15;
-	if (!lua_isnil(L, 3))
-		frame_speed = lua_tonumber(L, 3);
-	float frame_blend = 0;
-	if (!lua_isnil(L, 4))
-		frame_blend = lua_tonumber(L, 4);
-	bool frame_loop = true;
-	if (lua_isboolean(L, 5))
-		frame_loop = readParam<bool>(L, 5);
-	co->setAnimation(frames, frame_speed, frame_blend, frame_loop);
+	ServerActiveObject *sao = getobject(ref);
+	if (sao == nullptr)
+		return 0;
+
+	v2f frame_range   = readParam<v2f>(L,  2, v2f(1, 1));
+	float frame_speed = readParam<float>(L, 3, 15.0f);
+	float frame_blend = readParam<float>(L, 4, 0.0f);
+	bool frame_loop   = readParam<bool>(L, 5, true);
+
+	sao->setAnimation(frame_range, frame_speed, frame_blend, frame_loop);
 	return 0;
 }
 
@@ -480,16 +395,16 @@ int ObjectRef::l_get_animation(lua_State *L)
 {
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
-	ServerActiveObject *co = getobject(ref);
-	if (co == NULL)
+	ServerActiveObject *sao = getobject(ref);
+	if (sao == nullptr)
 		return 0;
-	// Do it
+
 	v2f frames = v2f(1,1);
 	float frame_speed = 15;
 	float frame_blend = 0;
 	bool frame_loop = true;
-	co->getAnimation(&frames, &frame_speed, &frame_blend, &frame_loop);
 
+	sao->getAnimation(&frames, &frame_speed, &frame_blend, &frame_loop);
 	push_v2f(L, frames);
 	lua_pushnumber(L, frame_speed);
 	lua_pushnumber(L, frame_blend);
@@ -497,23 +412,21 @@ int ObjectRef::l_get_animation(lua_State *L)
 	return 4;
 }
 
-// set_local_animation(self, {stand/idle}, {walk}, {dig}, {walk+dig}, frame_speed)
+// set_local_animation(self, idle, walk, dig, walk_while_dig, frame_speed)
 int ObjectRef::l_set_local_animation(lua_State *L)
 {
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
 	RemotePlayer *player = getplayer(ref);
-	if (player == NULL)
+	if (player == nullptr)
 		return 0;
-	// Do it
+
 	v2s32 frames[4];
 	for (int i=0;i<4;i++) {
 		if (!lua_isnil(L, 2+1))
 			frames[i] = read_v2s32(L, 2+i);
 	}
-	float frame_speed = 30;
-	if (!lua_isnil(L, 6))
-		frame_speed = lua_tonumber(L, 6);
+	float frame_speed = readParam<float>(L, 6, 30.0f);
 
 	getServer(L)->setLocalPlayerAnimations(player, frames, frame_speed);
 	lua_pushboolean(L, true);
@@ -526,7 +439,7 @@ int ObjectRef::l_get_local_animation(lua_State *L)
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
 	RemotePlayer *player = getplayer(ref);
-	if (player == NULL)
+	if (player == nullptr)
 		return 0;
 
 	v2s32 frames[4];
@@ -541,27 +454,22 @@ int ObjectRef::l_get_local_animation(lua_State *L)
 	return 5;
 }
 
-// set_eye_offset(self, v3f first pv, v3f third pv)
+// set_eye_offset(self, firstperson, thirdperson)
 int ObjectRef::l_set_eye_offset(lua_State *L)
 {
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
 	RemotePlayer *player = getplayer(ref);
-	if (player == NULL)
+	if (player == nullptr)
 		return 0;
-	// Do it
-	v3f offset_first = v3f(0, 0, 0);
-	v3f offset_third = v3f(0, 0, 0);
 
-	if (!lua_isnil(L, 2))
-		offset_first = read_v3f(L, 2);
-	if (!lua_isnil(L, 3))
-		offset_third = read_v3f(L, 3);
+	v3f offset_first = read_v3f(L, 2);
+	v3f offset_third = read_v3f(L, 3);
 
 	// Prevent abuse of offset values (keep player always visible)
 	offset_third.X = rangelim(offset_third.X,-10,10);
 	offset_third.Z = rangelim(offset_third.Z,-5,5);
-	/* TODO: if possible: improve the camera colision detetion to allow Y <= -1.5) */
+	/* TODO: if possible: improve the camera collision detection to allow Y <= -1.5) */
 	offset_third.Y = rangelim(offset_third.Y,-10,15); //1.5*BS
 
 	getServer(L)->setPlayerEyeOffset(player, offset_first, offset_third);
@@ -575,9 +483,9 @@ int ObjectRef::l_get_eye_offset(lua_State *L)
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
 	RemotePlayer *player = getplayer(ref);
-	if (player == NULL)
+	if (player == nullptr)
 		return 0;
-	// Do it
+
 	push_v3f(L, player->eye_offset_first);
 	push_v3f(L, player->eye_offset_third);
 	return 2;
@@ -588,14 +496,14 @@ int ObjectRef::l_send_mapblock(lua_State *L)
 {
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
-
 	RemotePlayer *player = getplayer(ref);
-	if (!player)
+	if (player == nullptr)
 		return 0;
-	v3s16 p = read_v3s16(L, 2);
+
+	v3s16 pos = read_v3s16(L, 2);
 
 	session_t peer_id = player->getPeerId();
-	bool r = getServer(L)->SendBlock(peer_id, p);
+	bool r = getServer(L)->SendBlock(peer_id, pos);
 
 	lua_pushboolean(L, r);
 	return 1;
@@ -606,14 +514,13 @@ int ObjectRef::l_set_animation_frame_speed(lua_State *L)
 {
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
-	ServerActiveObject *co = getobject(ref);
-	if (co == NULL)
+	ServerActiveObject *sao = getobject(ref);
+	if (sao == nullptr)
 		return 0;
 
-	// Do it
 	if (!lua_isnil(L, 2)) {
-		float frame_speed = lua_tonumber(L, 2);
-		co->setAnimationSpeed(frame_speed);
+		float frame_speed = readParam<float>(L, 2);
+		sao->setAnimationSpeed(frame_speed);
 		lua_pushboolean(L, true);
 	} else {
 		lua_pushboolean(L, false);
@@ -621,24 +528,20 @@ int ObjectRef::l_set_animation_frame_speed(lua_State *L)
 	return 1;
 }
 
-// set_bone_position(self, std::string bone, v3f position, v3f rotation)
+// set_bone_position(self, bone, position, rotation)
 int ObjectRef::l_set_bone_position(lua_State *L)
 {
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
-	ServerActiveObject *co = getobject(ref);
-	if (co == NULL) return 0;
-	// Do it
-	std::string bone;
-	if (!lua_isnil(L, 2))
-		bone = readParam<std::string>(L, 2);
-	v3f position = v3f(0, 0, 0);
-	if (!lua_isnil(L, 3))
-		position = check_v3f(L, 3);
-	v3f rotation = v3f(0, 0, 0);
-	if (!lua_isnil(L, 4))
-		rotation = check_v3f(L, 4);
-	co->setBonePosition(bone, position, rotation);
+	ServerActiveObject *sao = getobject(ref);
+	if (sao == nullptr)
+		return 0;
+
+	std::string bone = readParam<std::string>(L, 2);
+	v3f position = check_v3f(L, 3);
+	v3f rotation = check_v3f(L, 4);
+
+	sao->setBonePosition(bone, position, rotation);
 	return 0;
 }
 
@@ -647,63 +550,53 @@ int ObjectRef::l_get_bone_position(lua_State *L)
 {
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
-	ServerActiveObject *co = getobject(ref);
-	if (co == NULL)
+	ServerActiveObject *sao = getobject(ref);
+	if (sao == nullptr)
 		return 0;
-	// Do it
-	std::string bone;
-	if (!lua_isnil(L, 2))
-		bone = readParam<std::string>(L, 2);
+
+	std::string bone = readParam<std::string>(L, 2);
 
 	v3f position = v3f(0, 0, 0);
 	v3f rotation = v3f(0, 0, 0);
-	co->getBonePosition(bone, &position, &rotation);
+	sao->getBonePosition(bone, &position, &rotation);
 
 	push_v3f(L, position);
 	push_v3f(L, rotation);
 	return 2;
 }
 
-// set_attach(self, parent, bone, position, rotation)
+// set_attach(self, parent, bone, position, rotation, force_visible)
 int ObjectRef::l_set_attach(lua_State *L)
 {
 	GET_ENV_PTR;
-
 	ObjectRef *ref = checkobject(L, 1);
 	ObjectRef *parent_ref = checkobject(L, 2);
-	ServerActiveObject *co = getobject(ref);
+	ServerActiveObject *sao = getobject(ref);
 	ServerActiveObject *parent = getobject(parent_ref);
-	if (co == NULL)
-		return 0;
-
-	if (parent == NULL)
+	if (sao == nullptr || parent == nullptr)
 		return 0;
-
-	if (co == parent)
+	if (sao == parent)
 		throw LuaError("ObjectRef::set_attach: attaching object to itself is not allowed.");
 
-	// Do it
 	int parent_id = 0;
 	std::string bone;
 	v3f position = v3f(0, 0, 0);
 	v3f rotation = v3f(0, 0, 0);
-	co->getAttachment(&parent_id, &bone, &position, &rotation);
+	bool force_visible;
+
+	sao->getAttachment(&parent_id, &bone, &position, &rotation, &force_visible);
 	if (parent_id) {
 		ServerActiveObject *old_parent = env->getActiveObject(parent_id);
-		old_parent->removeAttachmentChild(co->getId());
+		old_parent->removeAttachmentChild(sao->getId());
 	}
 
-	bone = "";
-	if (!lua_isnil(L, 3))
-		bone = readParam<std::string>(L, 3);
-	position = v3f(0, 0, 0);
-	if (!lua_isnil(L, 4))
-		position = read_v3f(L, 4);
-	rotation = v3f(0, 0, 0);
-	if (!lua_isnil(L, 5))
-		rotation = read_v3f(L, 5);
-	co->setAttachment(parent->getId(), bone, position, rotation);
-	parent->addAttachmentChild(co->getId());
+	bone      = readParam<std::string>(L, 3, "");
+	position  = read_v3f(L, 4);
+	rotation  = read_v3f(L, 5);
+	force_visible = readParam<bool>(L, 6, false);
+
+	sao->setAttachment(parent->getId(), bone, position, rotation, force_visible);
+	parent->addAttachmentChild(sao->getId());
 	return 0;
 }
 
@@ -711,40 +604,61 @@ int ObjectRef::l_set_attach(lua_State *L)
 int ObjectRef::l_get_attach(lua_State *L)
 {
 	GET_ENV_PTR;
-
 	ObjectRef *ref = checkobject(L, 1);
-	ServerActiveObject *co = getobject(ref);
-	if (co == NULL)
+	ServerActiveObject *sao = getobject(ref);
+	if (sao == nullptr)
 		return 0;
 
-	// Do it
 	int parent_id = 0;
 	std::string bone;
 	v3f position = v3f(0, 0, 0);
 	v3f rotation = v3f(0, 0, 0);
-	co->getAttachment(&parent_id, &bone, &position, &rotation);
-	if (!parent_id)
+	bool force_visible;
+
+	sao->getAttachment(&parent_id, &bone, &position, &rotation, &force_visible);
+	if (parent_id == 0)
 		return 0;
-	ServerActiveObject *parent = env->getActiveObject(parent_id);
 
+	ServerActiveObject *parent = env->getActiveObject(parent_id);
 	getScriptApiBase(L)->objectrefGetOrCreate(L, parent);
 	lua_pushlstring(L, bone.c_str(), bone.size());
 	push_v3f(L, position);
 	push_v3f(L, rotation);
-	return 4;
+	lua_pushboolean(L, force_visible);
+	return 5;
+}
+
+// get_children(self)
+int ObjectRef::l_get_children(lua_State *L)
+{
+	GET_ENV_PTR;
+	ObjectRef *ref = checkobject(L, 1);
+	ServerActiveObject *sao = getobject(ref);
+	if (sao == nullptr)
+		return 0;
+
+	const std::unordered_set<int> child_ids = sao->getAttachmentChildIds();
+	int i = 0;
+
+	lua_createtable(L, child_ids.size(), 0);
+	for (const int id : child_ids) {
+		ServerActiveObject *child = env->getActiveObject(id);
+		getScriptApiBase(L)->objectrefGetOrCreate(L, child);
+		lua_rawseti(L, -2, ++i);
+	}
+	return 1;
 }
 
 // set_detach(self)
 int ObjectRef::l_set_detach(lua_State *L)
 {
 	GET_ENV_PTR;
-
 	ObjectRef *ref = checkobject(L, 1);
-	ServerActiveObject *co = getobject(ref);
-	if (co == NULL)
+	ServerActiveObject *sao = getobject(ref);
+	if (sao == nullptr)
 		return 0;
 
-	co->clearParentAttachment();
+	sao->clearParentAttachment();
 	return 0;
 }
 
@@ -753,16 +667,16 @@ int ObjectRef::l_set_properties(lua_State *L)
 {
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
-	ServerActiveObject *co = getobject(ref);
-	if (!co)
+	ServerActiveObject *sao = getobject(ref);
+	if (sao == nullptr)
 		return 0;
 
-	ObjectProperties *prop = co->accessObjectProperties();
-	if (!prop)
+	ObjectProperties *prop = sao->accessObjectProperties();
+	if (prop == nullptr)
 		return 0;
 
-	read_object_properties(L, 2, co, prop, getServer(L)->idef());
-	co->notifyObjectPropertiesModified();
+	read_object_properties(L, 2, sao, prop, getServer(L)->idef());
+	sao->notifyObjectPropertiesModified();
 	return 0;
 }
 
@@ -771,12 +685,14 @@ int ObjectRef::l_get_properties(lua_State *L)
 {
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
-	ServerActiveObject *co = getobject(ref);
-	if (co == NULL)
+	ServerActiveObject *sao = getobject(ref);
+	if (sao == nullptr)
 		return 0;
-	ObjectProperties *prop = co->accessObjectProperties();
-	if (!prop)
+
+	ObjectProperties *prop = sao->accessObjectProperties();
+	if (prop == nullptr)
 		return 0;
+
 	push_object_properties(L, prop);
 	return 1;
 }
@@ -787,7 +703,7 @@ int ObjectRef::l_is_player(lua_State *L)
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
 	RemotePlayer *player = getplayer(ref);
-	lua_pushboolean(L, (player != NULL));
+	lua_pushboolean(L, (player != nullptr));
 	return 1;
 }
 
@@ -796,12 +712,12 @@ int ObjectRef::l_set_nametag_attributes(lua_State *L)
 {
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
-	ServerActiveObject *co = getobject(ref);
-
-	if (co == NULL)
+	ServerActiveObject *sao = getobject(ref);
+	if (sao == nullptr)
 		return 0;
-	ObjectProperties *prop = co->accessObjectProperties();
-	if (!prop)
+
+	ObjectProperties *prop = sao->accessObjectProperties();
+	if (prop == nullptr)
 		return 0;
 
 	lua_getfield(L, 2, "color");
@@ -815,7 +731,7 @@ int ObjectRef::l_set_nametag_attributes(lua_State *L)
 	std::string nametag = getstringfield_default(L, 2, "text", "");
 	prop->nametag = nametag;
 
-	co->notifyObjectPropertiesModified();
+	sao->notifyObjectPropertiesModified();
 	lua_pushboolean(L, true);
 	return 1;
 }
@@ -825,11 +741,11 @@ int ObjectRef::l_get_nametag_attributes(lua_State *L)
 {
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
-	ServerActiveObject *co = getobject(ref);
-
-	if (co == NULL)
+	ServerActiveObject *sao = getobject(ref);
+	if (sao == nullptr)
 		return 0;
-	ObjectProperties *prop = co->accessObjectProperties();
+
+	ObjectProperties *prop = sao->accessObjectProperties();
 	if (!prop)
 		return 0;
 
@@ -845,30 +761,41 @@ int ObjectRef::l_get_nametag_attributes(lua_State *L)
 
 /* LuaEntitySAO-only */
 
-// set_velocity(self, {x=num, y=num, z=num})
+// set_velocity(self, velocity)
 int ObjectRef::l_set_velocity(lua_State *L)
 {
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
-	LuaEntitySAO *co = getluaobject(ref);
-	if (co == NULL) return 0;
-	v3f pos = checkFloatPos(L, 2);
-	// Do it
-	co->setVelocity(pos);
+	LuaEntitySAO *sao = getluaobject(ref);
+	if (sao == nullptr)
+		return 0;
+
+	v3f vel = checkFloatPos(L, 2);
+
+	sao->setVelocity(vel);
 	return 0;
 }
 
-// add_velocity(self, {x=num, y=num, z=num})
+// add_velocity(self, velocity)
 int ObjectRef::l_add_velocity(lua_State *L)
 {
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
-	LuaEntitySAO *co = getluaobject(ref);
-	if (!co)
+	ServerActiveObject *sao = getobject(ref);
+	if (sao == nullptr)
 		return 0;
-	v3f pos = checkFloatPos(L, 2);
-	// Do it
-	co->addVelocity(pos);
+
+	v3f vel = checkFloatPos(L, 2);
+
+	if (sao->getType() == ACTIVEOBJECT_TYPE_LUAENTITY) {
+		LuaEntitySAO *entitysao = dynamic_cast<LuaEntitySAO*>(sao);
+		entitysao->addVelocity(vel);
+	} else if (sao->getType() == ACTIVEOBJECT_TYPE_PLAYER) {
+		PlayerSAO *playersao = dynamic_cast<PlayerSAO*>(sao);
+		playersao->setMaxSpeedOverride(vel);
+		getServer(L)->SendPlayerSpeed(playersao->getPeerID(), vel);
+	}
+
 	return 0;
 }
 
@@ -877,25 +804,37 @@ int ObjectRef::l_get_velocity(lua_State *L)
 {
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
-	LuaEntitySAO *co = getluaobject(ref);
-	if (co == NULL) return 0;
-	// Do it
-	v3f v = co->getVelocity();
-	pushFloatPos(L, v);
+	ServerActiveObject *sao = getobject(ref);
+	if (sao == nullptr)
+		return 0;
+
+	if (sao->getType() == ACTIVEOBJECT_TYPE_LUAENTITY) {
+		LuaEntitySAO *entitysao = dynamic_cast<LuaEntitySAO*>(sao);
+		v3f vel = entitysao->getVelocity();
+		pushFloatPos(L, vel);
+		return 1;
+	} else if (sao->getType() == ACTIVEOBJECT_TYPE_PLAYER) {
+		RemotePlayer *player = dynamic_cast<PlayerSAO*>(sao)->getPlayer();
+		push_v3f(L, player->getSpeed() / BS);
+		return 1;
+	}
+
+	lua_pushnil(L);
 	return 1;
 }
 
-// set_acceleration(self, {x=num, y=num, z=num})
+// set_acceleration(self, acceleration)
 int ObjectRef::l_set_acceleration(lua_State *L)
 {
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
-	LuaEntitySAO *co = getluaobject(ref);
-	if (co == NULL) return 0;
-	// pos
-	v3f pos = checkFloatPos(L, 2);
-	// Do it
-	co->setAcceleration(pos);
+	LuaEntitySAO *entitysao = getluaobject(ref);
+	if (entitysao == nullptr)
+		return 0;
+
+	v3f acceleration = checkFloatPos(L, 2);
+
+	entitysao->setAcceleration(acceleration);
 	return 0;
 }
 
@@ -904,59 +843,61 @@ int ObjectRef::l_get_acceleration(lua_State *L)
 {
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
-	LuaEntitySAO *co = getluaobject(ref);
-	if (co == NULL) return 0;
-	// Do it
-	v3f v = co->getAcceleration();
-	pushFloatPos(L, v);
+	LuaEntitySAO *entitysao = getluaobject(ref);
+	if (entitysao == nullptr)
+		return 0;
+
+	v3f acceleration = entitysao->getAcceleration();
+	pushFloatPos(L, acceleration);
 	return 1;
 }
 
-// set_rotation(self, {x=num, y=num, z=num})
-// Each 'num' is in radians
+// set_rotation(self, rotation)
 int ObjectRef::l_set_rotation(lua_State *L)
 {
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
-	LuaEntitySAO *co = getluaobject(ref);
-	if (!co)
+	LuaEntitySAO *entitysao = getluaobject(ref);
+	if (entitysao == nullptr)
 		return 0;
 
 	v3f rotation = check_v3f(L, 2) * core::RADTODEG;
-	co->setRotation(rotation);
+
+	entitysao->setRotation(rotation);
 	return 0;
 }
 
 // get_rotation(self)
-// returns: {x=num, y=num, z=num}
-// Each 'num' is in radians
 int ObjectRef::l_get_rotation(lua_State *L)
 {
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
-	LuaEntitySAO *co = getluaobject(ref);
-	if (!co)
+	LuaEntitySAO *entitysao = getluaobject(ref);
+	if (entitysao == nullptr)
 		return 0;
 
+	v3f rotation = entitysao->getRotation() * core::DEGTORAD;
+
 	lua_newtable(L);
-	v3f rotation = co->getRotation() * core::DEGTORAD;
 	push_v3f(L, rotation);
 	return 1;
 }
 
-// set_yaw(self, radians)
+// set_yaw(self, yaw)
 int ObjectRef::l_set_yaw(lua_State *L)
 {
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
-	LuaEntitySAO *co = getluaobject(ref);
+	LuaEntitySAO *entitysao = getluaobject(ref);
+	if (entitysao == nullptr)
+		return 0;
 
-	if (co == NULL) return 0;
 	if (isNaN(L, 2))
 		throw LuaError("ObjectRef::set_yaw: NaN value is not allowed.");
 
 	float yaw = readParam<float>(L, 2) * core::RADTODEG;
-	co->setRotation(v3f(0, yaw, 0));
+
+	entitysao->setRotation(v3f(0, yaw, 0));
 	return 0;
 }
 
@@ -965,11 +906,12 @@ int ObjectRef::l_get_yaw(lua_State *L)
 {
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
-	LuaEntitySAO *co = getluaobject(ref);
-	if (!co)
+	LuaEntitySAO *entitysao = getluaobject(ref);
+	if (entitysao == nullptr)
 		return 0;
 
-	float yaw = co->getRotation().Y * core::DEGTORAD;
+	float yaw = entitysao->getRotation().Y * core::DEGTORAD;
+
 	lua_pushnumber(L, yaw);
 	return 1;
 }
@@ -979,11 +921,13 @@ int ObjectRef::l_set_texture_mod(lua_State *L)
 {
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
-	LuaEntitySAO *co = getluaobject(ref);
-	if (co == NULL) return 0;
-	// Do it
-	std::string mod = luaL_checkstring(L, 2);
-	co->setTextureMod(mod);
+	LuaEntitySAO *entitysao = getluaobject(ref);
+	if (entitysao == nullptr)
+		return 0;
+
+	std::string mod = readParam<std::string>(L, 2);
+
+	entitysao->setTextureMod(mod);
 	return 0;
 }
 
@@ -992,36 +936,31 @@ int ObjectRef::l_get_texture_mod(lua_State *L)
 {
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
-	LuaEntitySAO *co = getluaobject(ref);
-	if (co == NULL) return 0;
-	// Do it
-	std::string mod = co->getTextureMod();
+	LuaEntitySAO *entitysao = getluaobject(ref);
+	if (entitysao == nullptr)
+		return 0;
+
+	std::string mod = entitysao->getTextureMod();
+
 	lua_pushstring(L, mod.c_str());
 	return 1;
 }
 
-// set_sprite(self, p={x=0,y=0}, num_frames=1, framelength=0.2,
-//           select_horiz_by_yawpitch=false)
+// set_sprite(self, start_frame, num_frames, framelength, select_x_by_camera)
 int ObjectRef::l_set_sprite(lua_State *L)
 {
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
-	LuaEntitySAO *co = getluaobject(ref);
-	if (co == NULL) return 0;
-	// Do it
-	v2s16 p(0,0);
-	if (!lua_isnil(L, 2))
-		p = readParam<v2s16>(L, 2);
-	int num_frames = 1;
-	if (!lua_isnil(L, 3))
-		num_frames = lua_tonumber(L, 3);
-	float framelength = 0.2;
-	if (!lua_isnil(L, 4))
-		framelength = lua_tonumber(L, 4);
-	bool select_horiz_by_yawpitch = false;
-	if (!lua_isnil(L, 5))
-		select_horiz_by_yawpitch = readParam<bool>(L, 5);
-	co->setSprite(p, num_frames, framelength, select_horiz_by_yawpitch);
+	LuaEntitySAO *entitysao = getluaobject(ref);
+	if (entitysao == nullptr)
+		return 0;
+
+	v2s16 start_frame = readParam<v2s16>(L, 2, v2s16(0,0));
+	int num_frames    = readParam<int>(L, 3, 1);
+	float framelength = readParam<float>(L, 4, 0.2f);
+	bool select_x_by_camera = readParam<bool>(L, 5, false);
+
+	entitysao->setSprite(start_frame, num_frames, framelength, select_x_by_camera);
 	return 0;
 }
 
@@ -1031,11 +970,13 @@ int ObjectRef::l_get_entity_name(lua_State *L)
 {
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
-	LuaEntitySAO *co = getluaobject(ref);
+	LuaEntitySAO *entitysao = getluaobject(ref);
 	log_deprecated(L,"Deprecated call to \"get_entity_name");
-	if (co == NULL) return 0;
-	// Do it
-	std::string name = co->getName();
+	if (entitysao == nullptr)
+		return 0;
+
+	std::string name = entitysao->getName();
+
 	lua_pushstring(L, name.c_str());
 	return 1;
 }
@@ -1045,87 +986,45 @@ int ObjectRef::l_get_luaentity(lua_State *L)
 {
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
-	LuaEntitySAO *co = getluaobject(ref);
-	if (co == NULL) return 0;
-	// Do it
-	luaentity_get(L, co->getId());
+	LuaEntitySAO *entitysao = getluaobject(ref);
+	if (entitysao == nullptr)
+		return 0;
+
+	luaentity_get(L, entitysao->getId());
 	return 1;
 }
 
 /* Player-only */
 
-// is_player_connected(self)
-int ObjectRef::l_is_player_connected(lua_State *L)
-{
-	NO_MAP_LOCK_REQUIRED;
-	// This method was once added for a bugfix, but never documented
-	log_deprecated(L, "is_player_connected is undocumented and "
-		"will be removed in a future release");
-	ObjectRef *ref = checkobject(L, 1);
-	RemotePlayer *player = getplayer(ref);
-	lua_pushboolean(L, (player != NULL && player->getPeerId() != PEER_ID_INEXISTENT));
-	return 1;
-}
-
 // get_player_name(self)
 int ObjectRef::l_get_player_name(lua_State *L)
 {
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
 	RemotePlayer *player = getplayer(ref);
-	if (player == NULL) {
+	if (player == nullptr) {
 		lua_pushlstring(L, "", 0);
 		return 1;
 	}
-	// Do it
-	lua_pushstring(L, player->getName());
-	return 1;
-}
 
-// get_player_velocity(self)
-int ObjectRef::l_get_player_velocity(lua_State *L)
-{
-	NO_MAP_LOCK_REQUIRED;
-	ObjectRef *ref = checkobject(L, 1);
-	RemotePlayer *player = getplayer(ref);
-	if (player == NULL) {
-		lua_pushnil(L);
-		return 1;
-	}
-	// Do it
-	push_v3f(L, player->getSpeed() / BS);
+	lua_pushstring(L, player->getName());
 	return 1;
 }
 
-// add_player_velocity(self, {x=num, y=num, z=num})
-int ObjectRef::l_add_player_velocity(lua_State *L)
-{
-	NO_MAP_LOCK_REQUIRED;
-	ObjectRef *ref = checkobject(L, 1);
-	v3f vel = checkFloatPos(L, 2);
-
-	PlayerSAO *co = getplayersao(ref);
-	if (!co)
-		return 0;
-
-	// Do it
-	co->setMaxSpeedOverride(vel);
-	getServer(L)->SendPlayerSpeed(co->getPeerID(), vel);
-	return 0;
-}
-
 // get_look_dir(self)
 int ObjectRef::l_get_look_dir(lua_State *L)
 {
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
-	PlayerSAO* co = getplayersao(ref);
-	if (co == NULL) return 0;
-	// Do it
-	float pitch = co->getRadLookPitchDep();
-	float yaw = co->getRadYawDep();
+	PlayerSAO* playersao = getplayersao(ref);
+	if (playersao == nullptr)
+		return 0;
+
+	float pitch = playersao->getRadLookPitchDep();
+	float yaw = playersao->getRadYawDep();
 	v3f v(std::cos(pitch) * std::cos(yaw), std::sin(pitch), std::cos(pitch) *
 		std::sin(yaw));
+
 	push_v3f(L, v);
 	return 1;
 }
@@ -1140,10 +1039,11 @@ int ObjectRef::l_get_look_pitch(lua_State *L)
 		"Deprecated call to get_look_pitch, use get_look_vertical instead");
 
 	ObjectRef *ref = checkobject(L, 1);
-	PlayerSAO* co = getplayersao(ref);
-	if (co == NULL) return 0;
-	// Do it
-	lua_pushnumber(L, co->getRadLookPitchDep());
+	PlayerSAO* playersao = getplayersao(ref);
+	if (playersao == nullptr)
+		return 0;
+
+	lua_pushnumber(L, playersao->getRadLookPitchDep());
 	return 1;
 }
 
@@ -1157,34 +1057,37 @@ int ObjectRef::l_get_look_yaw(lua_State *L)
 		"Deprecated call to get_look_yaw, use get_look_horizontal instead");
 
 	ObjectRef *ref = checkobject(L, 1);
-	PlayerSAO* co = getplayersao(ref);
-	if (co == NULL) return 0;
-	// Do it
-	lua_pushnumber(L, co->getRadYawDep());
+	PlayerSAO* playersao = getplayersao(ref);
+	if (playersao == nullptr)
+		return 0;
+
+	lua_pushnumber(L, playersao->getRadYawDep());
 	return 1;
 }
 
-// get_look_pitch2(self)
+// get_look_vertical(self)
 int ObjectRef::l_get_look_vertical(lua_State *L)
 {
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
-	PlayerSAO* co = getplayersao(ref);
-	if (co == NULL) return 0;
-	// Do it
-	lua_pushnumber(L, co->getRadLookPitch());
+	PlayerSAO* playersao = getplayersao(ref);
+	if (playersao == nullptr)
+		return 0;
+
+	lua_pushnumber(L, playersao->getRadLookPitch());
 	return 1;
 }
 
-// get_look_yaw2(self)
+// get_look_horizontal(self)
 int ObjectRef::l_get_look_horizontal(lua_State *L)
 {
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
-	PlayerSAO* co = getplayersao(ref);
-	if (co == NULL) return 0;
-	// Do it
-	lua_pushnumber(L, co->getRadRotation().Y);
+	PlayerSAO* playersao = getplayersao(ref);
+	if (playersao == nullptr)
+		return 0;
+
+	lua_pushnumber(L, playersao->getRadRotation().Y);
 	return 1;
 }
 
@@ -1193,11 +1096,13 @@ int ObjectRef::l_set_look_vertical(lua_State *L)
 {
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
-	PlayerSAO* co = getplayersao(ref);
-	if (co == NULL) return 0;
+	PlayerSAO* playersao = getplayersao(ref);
+	if (playersao == nullptr)
+		return 0;
+
 	float pitch = readParam<float>(L, 2) * core::RADTODEG;
-	// Do it
-	co->setLookPitchAndSend(pitch);
+
+	playersao->setLookPitchAndSend(pitch);
 	return 1;
 }
 
@@ -1206,11 +1111,13 @@ int ObjectRef::l_set_look_horizontal(lua_State *L)
 {
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
-	PlayerSAO* co = getplayersao(ref);
-	if (co == NULL) return 0;
+	PlayerSAO* playersao = getplayersao(ref);
+	if (playersao == nullptr)
+		return 0;
+
 	float yaw = readParam<float>(L, 2) * core::RADTODEG;
-	// Do it
-	co->setPlayerYawAndSend(yaw);
+
+	playersao->setPlayerYawAndSend(yaw);
 	return 1;
 }
 
@@ -1224,11 +1131,13 @@ int ObjectRef::l_set_look_pitch(lua_State *L)
 		"Deprecated call to set_look_pitch, use set_look_vertical instead.");
 
 	ObjectRef *ref = checkobject(L, 1);
-	PlayerSAO* co = getplayersao(ref);
-	if (co == NULL) return 0;
+	PlayerSAO* playersao = getplayersao(ref);
+	if (playersao == nullptr)
+		return 0;
+
 	float pitch = readParam<float>(L, 2) * core::RADTODEG;
-	// Do it
-	co->setLookPitchAndSend(pitch);
+
+	playersao->setLookPitchAndSend(pitch);
 	return 1;
 }
 
@@ -1242,30 +1151,32 @@ int ObjectRef::l_set_look_yaw(lua_State *L)
 		"Deprecated call to set_look_yaw, use set_look_horizontal instead.");
 
 	ObjectRef *ref = checkobject(L, 1);
-	PlayerSAO* co = getplayersao(ref);
-	if (co == NULL) return 0;
+	PlayerSAO* playersao = getplayersao(ref);
+	if (playersao == nullptr)
+		return 0;
+
 	float yaw = readParam<float>(L, 2) * core::RADTODEG;
-	// Do it
-	co->setPlayerYawAndSend(yaw);
+
+	playersao->setPlayerYawAndSend(yaw);
 	return 1;
 }
 
-// set_fov(self, degrees[, is_multiplier, transition_time])
+// set_fov(self, degrees, is_multiplier, transition_time)
 int ObjectRef::l_set_fov(lua_State *L)
 {
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
 	RemotePlayer *player = getplayer(ref);
-	if (!player)
+	if (player == nullptr)
 		return 0;
 
-	player->setFov({
-		static_cast<f32>(luaL_checknumber(L, 2)),
-		readParam<bool>(L, 3, false),
-		lua_isnumber(L, 4) ? static_cast<f32>(luaL_checknumber(L, 4)) : 0.0f
-	});
-	getServer(L)->SendPlayerFov(player->getPeerId());
+	float degrees = static_cast<f32>(luaL_checknumber(L, 2));
+	bool is_multiplier = readParam<bool>(L, 3, false);
+	float transition_time = lua_isnumber(L, 4) ?
+		static_cast<f32>(luaL_checknumber(L, 4)) : 0.0f;
 
+	player->setFov({degrees, is_multiplier, transition_time});
+	getServer(L)->SendPlayerFov(player->getPeerId());
 	return 0;
 }
 
@@ -1275,14 +1186,14 @@ int ObjectRef::l_get_fov(lua_State *L)
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
 	RemotePlayer *player = getplayer(ref);
-	if (!player)
+	if (player == nullptr)
 		return 0;
 
 	PlayerFovSpec fov_spec = player->getFov();
+
 	lua_pushnumber(L, fov_spec.fov);
 	lua_pushboolean(L, fov_spec.is_multiplier);
 	lua_pushnumber(L, fov_spec.transition_time);
-
 	return 3;
 }
 
@@ -1291,11 +1202,13 @@ int ObjectRef::l_set_breath(lua_State *L)
 {
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
-	PlayerSAO* co = getplayersao(ref);
-	if (co == NULL) return 0;
+	PlayerSAO* playersao = getplayersao(ref);
+	if (playersao == nullptr)
+		return 0;
+
 	u16 breath = luaL_checknumber(L, 2);
-	co->setBreath(breath);
 
+	playersao->setBreath(breath);
 	return 0;
 }
 
@@ -1304,11 +1217,13 @@ int ObjectRef::l_get_breath(lua_State *L)
 {
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
-	PlayerSAO* co = getplayersao(ref);
-	if (co == NULL) return 0;
-	// Do it
-	u16 breath = co->getBreath();
-	lua_pushinteger (L, breath);
+	PlayerSAO* playersao = getplayersao(ref);
+	if (playersao == nullptr)
+		return 0;
+
+	u16 breath = playersao->getBreath();
+
+	lua_pushinteger(L, breath);
 	return 1;
 }
 
@@ -1319,16 +1234,16 @@ int ObjectRef::l_set_attribute(lua_State *L)
 		"Deprecated call to set_attribute, use MetaDataRef methods instead.");
 
 	ObjectRef *ref = checkobject(L, 1);
-	PlayerSAO* co = getplayersao(ref);
-	if (co == NULL)
+	PlayerSAO* playersao = getplayersao(ref);
+	if (playersao == nullptr)
 		return 0;
 
 	std::string attr = luaL_checkstring(L, 2);
 	if (lua_isnil(L, 3)) {
-		co->getMeta().removeString(attr);
+		playersao->getMeta().removeString(attr);
 	} else {
 		std::string value = luaL_checkstring(L, 3);
-		co->getMeta().setString(attr, value);
+		playersao->getMeta().setString(attr, value);
 	}
 	return 1;
 }
@@ -1340,14 +1255,14 @@ int ObjectRef::l_get_attribute(lua_State *L)
 		"Deprecated call to get_attribute, use MetaDataRef methods instead.");
 
 	ObjectRef *ref = checkobject(L, 1);
-	PlayerSAO* co = getplayersao(ref);
-	if (co == NULL)
+	PlayerSAO* playersao = getplayersao(ref);
+	if (playersao == nullptr)
 		return 0;
 
 	std::string attr = luaL_checkstring(L, 2);
 
 	std::string value;
-	if (co->getMeta().getStringToRef(attr, value)) {
+	if (playersao->getMeta().getStringToRef(attr, value)) {
 		lua_pushstring(L, value.c_str());
 		return 1;
 	}
@@ -1360,11 +1275,11 @@ int ObjectRef::l_get_attribute(lua_State *L)
 int ObjectRef::l_get_meta(lua_State *L)
 {
 	ObjectRef *ref = checkobject(L, 1);
-	PlayerSAO *co = getplayersao(ref);
-	if (co == NULL)
+	PlayerSAO *playersao = getplayersao(ref);
+	if (playersao == nullptr)
 		return 0;
 
-	PlayerMetaRef::create(L, &co->getMeta());
+	PlayerMetaRef::create(L, &playersao->getMeta());
 	return 1;
 }
 
@@ -1375,7 +1290,9 @@ int ObjectRef::l_set_inventory_formspec(lua_State *L)
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
 	RemotePlayer *player = getplayer(ref);
-	if (player == NULL) return 0;
+	if (player == nullptr)
+		return 0;
+
 	std::string formspec = luaL_checkstring(L, 2);
 
 	player->inventory_formspec = formspec;
@@ -1390,9 +1307,11 @@ int ObjectRef::l_get_inventory_formspec(lua_State *L)
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
 	RemotePlayer *player = getplayer(ref);
-	if (player == NULL) return 0;
+	if (player == nullptr)
+		return 0;
 
 	std::string formspec = player->inventory_formspec;
+
 	lua_pushlstring(L, formspec.c_str(), formspec.size());
 	return 1;
 }
@@ -1403,7 +1322,7 @@ int ObjectRef::l_set_formspec_prepend(lua_State *L)
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
 	RemotePlayer *player = getplayer(ref);
-	if (player == NULL)
+	if (player == nullptr)
 		return 0;
 
 	std::string formspec = luaL_checkstring(L, 2);
@@ -1414,16 +1333,17 @@ int ObjectRef::l_set_formspec_prepend(lua_State *L)
 	return 1;
 }
 
-// get_formspec_prepend(self) -> formspec
+// get_formspec_prepend(self)
 int ObjectRef::l_get_formspec_prepend(lua_State *L)
 {
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
 	RemotePlayer *player = getplayer(ref);
-	if (player == NULL)
+	if (player == nullptr)
 		 return 0;
 
 	std::string formspec = player->formspec_prepend;
+
 	lua_pushlstring(L, formspec.c_str(), formspec.size());
 	return 1;
 }
@@ -1434,7 +1354,7 @@ int ObjectRef::l_get_player_control(lua_State *L)
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
 	RemotePlayer *player = getplayer(ref);
-	if (player == NULL) {
+	if (player == nullptr) {
 		lua_pushlstring(L, "", 0);
 		return 1;
 	}
@@ -1455,9 +1375,14 @@ int ObjectRef::l_get_player_control(lua_State *L)
 	lua_setfield(L, -2, "aux1");
 	lua_pushboolean(L, control.sneak);
 	lua_setfield(L, -2, "sneak");
-	lua_pushboolean(L, control.LMB);
+	lua_pushboolean(L, control.dig);
+	lua_setfield(L, -2, "dig");
+	lua_pushboolean(L, control.place);
+	lua_setfield(L, -2, "place");
+	// Legacy fields to ensure mod compatibility
+	lua_pushboolean(L, control.dig);
 	lua_setfield(L, -2, "LMB");
-	lua_pushboolean(L, control.RMB);
+	lua_pushboolean(L, control.place);
 	lua_setfield(L, -2, "RMB");
 	lua_pushboolean(L, control.zoom);
 	lua_setfield(L, -2, "zoom");
@@ -1470,22 +1395,87 @@ int ObjectRef::l_get_player_control_bits(lua_State *L)
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
 	RemotePlayer *player = getplayer(ref);
-	if (player == NULL) {
+	if (player == nullptr) {
 		lua_pushlstring(L, "", 0);
 		return 1;
 	}
-	// Do it
+
 	lua_pushnumber(L, player->keyPressed);
 	return 1;
 }
 
-// hud_add(self, form)
+// set_physics_override(self, override_table)
+int ObjectRef::l_set_physics_override(lua_State *L)
+{
+	NO_MAP_LOCK_REQUIRED;
+	ObjectRef *ref = checkobject(L, 1);
+	PlayerSAO *playersao = (PlayerSAO *) getobject(ref);
+	if (playersao == nullptr)
+		return 0;
+
+	if (lua_istable(L, 2)) {
+		bool modified = false;
+		modified |= getfloatfield(L, 2, "speed", playersao->m_physics_override_speed);
+		modified |= getfloatfield(L, 2, "jump", playersao->m_physics_override_jump);
+		modified |= getfloatfield(L, 2, "gravity", playersao->m_physics_override_gravity);
+		modified |= getboolfield(L, 2, "sneak", playersao->m_physics_override_sneak);
+		modified |= getboolfield(L, 2, "sneak_glitch", playersao->m_physics_override_sneak_glitch);
+		modified |= getboolfield(L, 2, "new_move", playersao->m_physics_override_new_move);
+		if (modified)
+			playersao->m_physics_override_sent = false;
+	} else {
+		// old, non-table format
+		// TODO: Remove this code after version 5.4.0
+		log_deprecated(L, "Deprecated use of set_physics_override(num, num, num)");
+
+		if (!lua_isnil(L, 2)) {
+			playersao->m_physics_override_speed = lua_tonumber(L, 2);
+			playersao->m_physics_override_sent = false;
+		}
+		if (!lua_isnil(L, 3)) {
+			playersao->m_physics_override_jump = lua_tonumber(L, 3);
+			playersao->m_physics_override_sent = false;
+		}
+		if (!lua_isnil(L, 4)) {
+			playersao->m_physics_override_gravity = lua_tonumber(L, 4);
+			playersao->m_physics_override_sent = false;
+		}
+	}
+	return 0;
+}
+
+// get_physics_override(self)
+int ObjectRef::l_get_physics_override(lua_State *L)
+{
+	NO_MAP_LOCK_REQUIRED;
+	ObjectRef *ref = checkobject(L, 1);
+	PlayerSAO *playersao = (PlayerSAO *)getobject(ref);
+	if (playersao == nullptr)
+		return 0;
+
+	lua_newtable(L);
+	lua_pushnumber(L, playersao->m_physics_override_speed);
+	lua_setfield(L, -2, "speed");
+	lua_pushnumber(L, playersao->m_physics_override_jump);
+	lua_setfield(L, -2, "jump");
+	lua_pushnumber(L, playersao->m_physics_override_gravity);
+	lua_setfield(L, -2, "gravity");
+	lua_pushboolean(L, playersao->m_physics_override_sneak);
+	lua_setfield(L, -2, "sneak");
+	lua_pushboolean(L, playersao->m_physics_override_sneak_glitch);
+	lua_setfield(L, -2, "sneak_glitch");
+	lua_pushboolean(L, playersao->m_physics_override_new_move);
+	lua_setfield(L, -2, "new_move");
+	return 1;
+}
+
+// hud_add(self, hud)
 int ObjectRef::l_hud_add(lua_State *L)
 {
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
 	RemotePlayer *player = getplayer(ref);
-	if (player == NULL)
+	if (player == nullptr)
 		return 0;
 
 	HudElement *elem = new HudElement;
@@ -1507,12 +1497,10 @@ int ObjectRef::l_hud_remove(lua_State *L)
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
 	RemotePlayer *player = getplayer(ref);
-	if (player == NULL)
+	if (player == nullptr)
 		return 0;
 
-	u32 id = -1;
-	if (!lua_isnil(L, 2))
-		id = lua_tonumber(L, 2);
+	u32 id = luaL_checkint(L, 2);
 
 	if (!getServer(L)->hudRemove(player, id))
 		return 0;
@@ -1527,17 +1515,17 @@ int ObjectRef::l_hud_change(lua_State *L)
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
 	RemotePlayer *player = getplayer(ref);
-	if (player == NULL)
+	if (player == nullptr)
 		return 0;
 
-	u32 id = lua_isnumber(L, 2) ? lua_tonumber(L, 2) : -1;
+	u32 id = luaL_checkint(L, 2);
 
-	HudElement *e = player->getHud(id);
-	if (!e)
+	HudElement *elem = player->getHud(id);
+	if (elem == nullptr)
 		return 0;
 
-	void *value = NULL;
-	HudElementStat stat = read_hud_change(L, e, &value);
+	void *value = nullptr;
+	HudElementStat stat = read_hud_change(L, elem, &value);
 
 	getServer(L)->hudChange(player, id, stat, value);
 
@@ -1551,15 +1539,16 @@ int ObjectRef::l_hud_get(lua_State *L)
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
 	RemotePlayer *player = getplayer(ref);
-	if (player == NULL)
+	if (player == nullptr)
 		return 0;
 
-	u32 id = lua_tonumber(L, -1);
+	u32 id = luaL_checkint(L, 2);
 
-	HudElement *e = player->getHud(id);
-	if (!e)
+	HudElement *elem = player->getHud(id);
+	if (elem == nullptr)
 		return 0;
-	push_hud_element(L, e);
+
+	push_hud_element(L, elem);
 	return 1;
 }
 
@@ -1569,7 +1558,7 @@ int ObjectRef::l_hud_set_flags(lua_State *L)
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
 	RemotePlayer *player = getplayer(ref);
-	if (player == NULL)
+	if (player == nullptr)
 		return 0;
 
 	u32 flags = 0;
@@ -1590,12 +1579,13 @@ int ObjectRef::l_hud_set_flags(lua_State *L)
 	return 1;
 }
 
+// hud_get_flags(self)
 int ObjectRef::l_hud_get_flags(lua_State *L)
 {
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
 	RemotePlayer *player = getplayer(ref);
-	if (player == NULL)
+	if (player == nullptr)
 		return 0;
 
 	lua_newtable(L);
@@ -1613,7 +1603,6 @@ int ObjectRef::l_hud_get_flags(lua_State *L)
 	lua_setfield(L, -2, "minimap");
 	lua_pushboolean(L, player->hud_flags & HUD_FLAG_MINIMAP_RADAR_VISIBLE);
 	lua_setfield(L, -2, "minimap_radar");
-
 	return 1;
 }
 
@@ -1623,10 +1612,10 @@ int ObjectRef::l_hud_set_hotbar_itemcount(lua_State *L)
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
 	RemotePlayer *player = getplayer(ref);
-	if (player == NULL)
+	if (player == nullptr)
 		return 0;
 
-	s32 hotbar_itemcount = lua_tonumber(L, 2);
+	s32 hotbar_itemcount = luaL_checkint(L, 2);
 
 	if (!getServer(L)->hudSetHotbarItemcount(player, hotbar_itemcount))
 		return 0;
@@ -1641,7 +1630,7 @@ int ObjectRef::l_hud_get_hotbar_itemcount(lua_State *L)
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
 	RemotePlayer *player = getplayer(ref);
-	if (player == NULL)
+	if (player == nullptr)
 		return 0;
 
 	lua_pushnumber(L, player->getHotbarItemcount());
@@ -1654,7 +1643,7 @@ int ObjectRef::l_hud_set_hotbar_image(lua_State *L)
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
 	RemotePlayer *player = getplayer(ref);
-	if (player == NULL)
+	if (player == nullptr)
 		return 0;
 
 	std::string name = readParam<std::string>(L, 2);
@@ -1669,10 +1658,11 @@ int ObjectRef::l_hud_get_hotbar_image(lua_State *L)
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
 	RemotePlayer *player = getplayer(ref);
-	if (player == NULL)
+	if (player == nullptr)
 		return 0;
 
 	const std::string &name = player->getHotbarImage();
+
 	lua_pushlstring(L, name.c_str(), name.size());
 	return 1;
 }
@@ -1683,7 +1673,7 @@ int ObjectRef::l_hud_set_hotbar_selected_image(lua_State *L)
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
 	RemotePlayer *player = getplayer(ref);
-	if (player == NULL)
+	if (player == nullptr)
 		return 0;
 
 	std::string name = readParam<std::string>(L, 2);
@@ -1698,44 +1688,45 @@ int ObjectRef::l_hud_get_hotbar_selected_image(lua_State *L)
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
 	RemotePlayer *player = getplayer(ref);
-	if (player == NULL)
+	if (player == nullptr)
 		return 0;
 
 	const std::string &name = player->getHotbarSelectedImage();
+
 	lua_pushlstring(L, name.c_str(), name.size());
 	return 1;
 }
 
-// set_sky(self, {base_color=, type=, textures=, clouds=, sky_colors={}})
+// set_sky(self, sky_parameters)
 int ObjectRef::l_set_sky(lua_State *L)
 {
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
 	RemotePlayer *player = getplayer(ref);
-	if (!player)
+	if (player == nullptr)
 		return 0;
 
+	SkyboxParams sky_params = player->getSkyParams();
 	bool is_colorspec = is_color_table(L, 2);
 
-	SkyboxParams skybox_params = player->getSkyParams();
 	if (lua_istable(L, 2) && !is_colorspec) {
 		lua_getfield(L, 2, "base_color");
 		if (!lua_isnil(L, -1))
-			read_color(L, -1, &skybox_params.bgcolor);
+			read_color(L, -1, &sky_params.bgcolor);
 		lua_pop(L, 1);
 
 		lua_getfield(L, 2, "type");
 		if (!lua_isnil(L, -1))
-			skybox_params.type = luaL_checkstring(L, -1);
+			sky_params.type = luaL_checkstring(L, -1);
 		lua_pop(L, 1);
 
 		lua_getfield(L, 2, "textures");
-		skybox_params.textures.clear();
-		if (lua_istable(L, -1) && skybox_params.type == "skybox") {
+		sky_params.textures.clear();
+		if (lua_istable(L, -1) && sky_params.type == "skybox") {
 			lua_pushnil(L);
 			while (lua_next(L, -2) != 0) {
 				// Key is at index -2 and value at index -1
-				skybox_params.textures.emplace_back(readParam<std::string>(L, -1));
+				sky_params.textures.emplace_back(readParam<std::string>(L, -1));
 				// Removes the value, but keeps the key for iteration
 				lua_pop(L, 1);
 			}
@@ -1748,56 +1739,56 @@ int ObjectRef::l_set_sky(lua_State *L)
 		using "regular" or "plain" skybox modes as textures aren't needed.
 		*/
 
-		if (skybox_params.textures.size() != 6 && skybox_params.textures.size() > 0)
+		if (sky_params.textures.size() != 6 && sky_params.textures.size() > 0)
 			throw LuaError("Skybox expects 6 textures!");
 
-		skybox_params.clouds = getboolfield_default(L, 2,
-			"clouds", skybox_params.clouds);
+		sky_params.clouds = getboolfield_default(L, 2,
+			"clouds", sky_params.clouds);
 
 		lua_getfield(L, 2, "sky_color");
 		if (lua_istable(L, -1)) {
 			lua_getfield(L, -1, "day_sky");
-			read_color(L, -1, &skybox_params.sky_color.day_sky);
+			read_color(L, -1, &sky_params.sky_color.day_sky);
 			lua_pop(L, 1);
 
 			lua_getfield(L, -1, "day_horizon");
-			read_color(L, -1, &skybox_params.sky_color.day_horizon);
+			read_color(L, -1, &sky_params.sky_color.day_horizon);
 			lua_pop(L, 1);
 
 			lua_getfield(L, -1, "dawn_sky");
-			read_color(L, -1, &skybox_params.sky_color.dawn_sky);
+			read_color(L, -1, &sky_params.sky_color.dawn_sky);
 			lua_pop(L, 1);
 
 			lua_getfield(L, -1, "dawn_horizon");
-			read_color(L, -1, &skybox_params.sky_color.dawn_horizon);
+			read_color(L, -1, &sky_params.sky_color.dawn_horizon);
 			lua_pop(L, 1);
 
 			lua_getfield(L, -1, "night_sky");
-			read_color(L, -1, &skybox_params.sky_color.night_sky);
+			read_color(L, -1, &sky_params.sky_color.night_sky);
 			lua_pop(L, 1);
 
 			lua_getfield(L, -1, "night_horizon");
-			read_color(L, -1, &skybox_params.sky_color.night_horizon);
+			read_color(L, -1, &sky_params.sky_color.night_horizon);
 			lua_pop(L, 1);
 
 			lua_getfield(L, -1, "indoors");
-			read_color(L, -1, &skybox_params.sky_color.indoors);
+			read_color(L, -1, &sky_params.sky_color.indoors);
 			lua_pop(L, 1);
 
 			// Prevent flickering clouds at dawn/dusk:
-			skybox_params.fog_sun_tint = video::SColor(255, 255, 255, 255);
+			sky_params.fog_sun_tint = video::SColor(255, 255, 255, 255);
 			lua_getfield(L, -1, "fog_sun_tint");
-			read_color(L, -1, &skybox_params.fog_sun_tint);
+			read_color(L, -1, &sky_params.fog_sun_tint);
 			lua_pop(L, 1);
 
-			skybox_params.fog_moon_tint = video::SColor(255, 255, 255, 255);
+			sky_params.fog_moon_tint = video::SColor(255, 255, 255, 255);
 			lua_getfield(L, -1, "fog_moon_tint");
-			read_color(L, -1, &skybox_params.fog_moon_tint);
+			read_color(L, -1, &sky_params.fog_moon_tint);
 			lua_pop(L, 1);
 
 			lua_getfield(L, -1, "fog_tint_type");
 			if (!lua_isnil(L, -1))
-				skybox_params.fog_tint_type = luaL_checkstring(L, -1);
+				sky_params.fog_tint_type = luaL_checkstring(L, -1);
 			lua_pop(L, 1);
 
 			// Because we need to leave the "sky_color" table.
@@ -1813,14 +1804,14 @@ int ObjectRef::l_set_sky(lua_State *L)
 		StarParams star_params = player->getStarParams();
 
 		// Prevent erroneous background colors
-		skybox_params.bgcolor = video::SColor(255, 255, 255, 255);
-		read_color(L, 2, &skybox_params.bgcolor);
+		sky_params.bgcolor = video::SColor(255, 255, 255, 255);
+		read_color(L, 2, &sky_params.bgcolor);
 
-		skybox_params.type = luaL_checkstring(L, 3);
+		sky_params.type = luaL_checkstring(L, 3);
 
 		// Preserve old behaviour of the sun, moon and stars
 		// when using the old set_sky call.
-		if (skybox_params.type == "regular") {
+		if (sky_params.type == "regular") {
 			sun_params.visible = true;
 			sun_params.sunrise_visible = true;
 			moon_params.visible = true;
@@ -1832,31 +1823,31 @@ int ObjectRef::l_set_sky(lua_State *L)
 			star_params.visible = false;
 		}
 
-		skybox_params.textures.clear();
+		sky_params.textures.clear();
 		if (lua_istable(L, 4)) {
 			lua_pushnil(L);
 			while (lua_next(L, 4) != 0) {
 			// Key at index -2, and value at index -1
 				if (lua_isstring(L, -1))
-					skybox_params.textures.emplace_back(readParam<std::string>(L, -1));
+					sky_params.textures.emplace_back(readParam<std::string>(L, -1));
 				else
-					skybox_params.textures.emplace_back("");
+					sky_params.textures.emplace_back("");
 				// Remove the value, keep the key for the next iteration
 				lua_pop(L, 1);
 			}
 		}
-		if (skybox_params.type == "skybox" && skybox_params.textures.size() != 6)
+		if (sky_params.type == "skybox" && sky_params.textures.size() != 6)
 			throw LuaError("Skybox expects 6 textures.");
 
-		skybox_params.clouds = true;
+		sky_params.clouds = true;
 		if (lua_isboolean(L, 5))
-			skybox_params.clouds = readParam<bool>(L, 5);
+			sky_params.clouds = readParam<bool>(L, 5);
 
 		getServer(L)->setSun(player, sun_params);
 		getServer(L)->setMoon(player, moon_params);
 		getServer(L)->setStars(player, star_params);
 	}
-	getServer(L)->setSky(player, skybox_params);
+	getServer(L)->setSky(player, sky_params);
 	lua_pushboolean(L, true);
 	return 1;
 }
@@ -1867,18 +1858,17 @@ int ObjectRef::l_get_sky(lua_State *L)
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
 	RemotePlayer *player = getplayer(ref);
-
-	if (!player)
+	if (player == nullptr)
 		return 0;
-	SkyboxParams skybox_params;
-	skybox_params = player->getSkyParams();
+
+	SkyboxParams skybox_params = player->getSkyParams();
 
 	push_ARGB8(L, skybox_params.bgcolor);
 	lua_pushlstring(L, skybox_params.type.c_str(), skybox_params.type.size());
 
 	lua_newtable(L);
 	s16 i = 1;
-	for (const std::string& texture : skybox_params.textures) {
+	for (const std::string &texture : skybox_params.textures) {
 		lua_pushlstring(L, texture.c_str(), texture.size());
 		lua_rawseti(L, -2, i++);
 	}
@@ -1892,11 +1882,10 @@ int ObjectRef::l_get_sky_color(lua_State *L)
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
 	RemotePlayer *player = getplayer(ref);
-
-	if (!player)
+	if (player == nullptr)
 		return 0;
 
-	const SkyboxParams& skybox_params = player->getSkyParams();
+	const SkyboxParams &skybox_params = player->getSkyParams();
 
 	lua_newtable(L);
 	if (skybox_params.type == "regular") {
@@ -1924,18 +1913,16 @@ int ObjectRef::l_get_sky_color(lua_State *L)
 	return 1;
 }
 
-// set_sun(self, {visible, texture=, tonemap=, sunrise=, rotation=, scale=})
+// set_sun(self, sun_parameters)
 int ObjectRef::l_set_sun(lua_State *L)
 {
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
 	RemotePlayer *player = getplayer(ref);
-	if (!player)
-		return 0;
-
-	if (!lua_istable(L, 2))
+	if (player == nullptr)
 		return 0;
 
+	luaL_checktype(L, 2, LUA_TTABLE);
 	SunParams sun_params = player->getSunParams();
 
 	sun_params.visible = getboolfield_default(L, 2,
@@ -1962,8 +1949,9 @@ int ObjectRef::l_get_sun(lua_State *L)
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
 	RemotePlayer *player = getplayer(ref);
-	if (!player)
+	if (player == nullptr)
 		return 0;
+
 	const SunParams &sun_params = player->getSunParams();
 
 	lua_newtable(L);
@@ -1979,21 +1967,19 @@ int ObjectRef::l_get_sun(lua_State *L)
 	lua_setfield(L, -2, "sunrise_visible");
 	lua_pushnumber(L, sun_params.scale);
 	lua_setfield(L, -2, "scale");
-
 	return 1;
 }
 
-// set_moon(self, {visible, texture=, tonemap=, sunrise=, rotation=, scale=})
+// set_moon(self, moon_parameters)
 int ObjectRef::l_set_moon(lua_State *L)
 {
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
 	RemotePlayer *player = getplayer(ref);
-	if (!player)
-		return 0;
-	if (!lua_istable(L, 2))
+	if (player == nullptr)
 		return 0;
 
+	luaL_checktype(L, 2, LUA_TTABLE);
 	MoonParams moon_params = player->getMoonParams();
 
 	moon_params.visible = getboolfield_default(L, 2,
@@ -2016,8 +2002,9 @@ int ObjectRef::l_get_moon(lua_State *L)
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
 	RemotePlayer *player = getplayer(ref);
-	if (!player)
+	if (player == nullptr)
 		return 0;
+
 	const MoonParams &moon_params = player->getMoonParams();
 
 	lua_newtable(L);
@@ -2029,21 +2016,19 @@ int ObjectRef::l_get_moon(lua_State *L)
 	lua_setfield(L, -2, "tonemap");
 	lua_pushnumber(L, moon_params.scale);
 	lua_setfield(L, -2, "scale");
-
 	return 1;
 }
 
-// set_stars(self, {visible, count=, starcolor=, rotation=, scale=})
+// set_stars(self, star_parameters)
 int ObjectRef::l_set_stars(lua_State *L)
 {
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
 	RemotePlayer *player = getplayer(ref);
-	if (!player)
-		return 0;
-	if (!lua_istable(L, 2))
+	if (player == nullptr)
 		return 0;
 
+	luaL_checktype(L, 2, LUA_TTABLE);
 	StarParams star_params = player->getStarParams();
 
 	star_params.visible = getboolfield_default(L, 2,
@@ -2070,8 +2055,9 @@ int ObjectRef::l_get_stars(lua_State *L)
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
 	RemotePlayer *player = getplayer(ref);
-	if (!player)
+	if (player == nullptr)
 		return 0;
+
 	const StarParams &star_params = player->getStarParams();
 
 	lua_newtable(L);
@@ -2083,21 +2069,19 @@ int ObjectRef::l_get_stars(lua_State *L)
 	lua_setfield(L, -2, "star_color");
 	lua_pushnumber(L, star_params.scale);
 	lua_setfield(L, -2, "scale");
-
 	return 1;
 }
 
-// set_clouds(self, {density=, color=, ambient=, height=, thickness=, speed=})
+// set_clouds(self, cloud_parameters)
 int ObjectRef::l_set_clouds(lua_State *L)
 {
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
 	RemotePlayer *player = getplayer(ref);
-	if (!player)
-		return 0;
-	if (!lua_istable(L, 2))
+	if (player == nullptr)
 		return 0;
 
+	luaL_checktype(L, 2, LUA_TTABLE);
 	CloudParams cloud_params = player->getCloudParams();
 
 	cloud_params.density = getfloatfield_default(L, 2, "density", cloud_params.density);
@@ -2133,8 +2117,9 @@ int ObjectRef::l_get_clouds(lua_State *L)
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
 	RemotePlayer *player = getplayer(ref);
-	if (!player)
+	if (player == nullptr)
 		return 0;
+
 	const CloudParams &cloud_params = player->getCloudParams();
 
 	lua_newtable(L);
@@ -2154,25 +2139,27 @@ int ObjectRef::l_get_clouds(lua_State *L)
 	lua_pushnumber(L, cloud_params.speed.Y);
 	lua_setfield(L, -2, "y");
 	lua_setfield(L, -2, "speed");
-
 	return 1;
 }
 
 
-// override_day_night_ratio(self, brightness=0...1)
+// override_day_night_ratio(self, ratio)
 int ObjectRef::l_override_day_night_ratio(lua_State *L)
 {
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
 	RemotePlayer *player = getplayer(ref);
-	if (player == NULL)
+	if (player == nullptr)
 		return 0;
 
 	bool do_override = false;
 	float ratio = 0.0f;
+
 	if (!lua_isnil(L, 2)) {
 		do_override = true;
 		ratio = readParam<float>(L, 2);
+		luaL_argcheck(L, ratio >= 0.0f && ratio <= 1.0f, 1,
+			"value must be between 0 and 1");
 	}
 
 	getServer(L)->overrideDayNightRatio(player, do_override, ratio);
@@ -2186,7 +2173,7 @@ int ObjectRef::l_get_day_night_ratio(lua_State *L)
 	NO_MAP_LOCK_REQUIRED;
 	ObjectRef *ref = checkobject(L, 1);
 	RemotePlayer *player = getplayer(ref);
-	if (player == NULL)
+	if (player == nullptr)
 		return 0;
 
 	bool do_override;
@@ -2201,27 +2188,77 @@ int ObjectRef::l_get_day_night_ratio(lua_State *L)
 	return 1;
 }
 
-ObjectRef::ObjectRef(ServerActiveObject *object):
-	m_object(object)
+// set_minimap_modes(self, modes, selected_mode)
+int ObjectRef::l_set_minimap_modes(lua_State *L)
 {
-	//infostream<<"ObjectRef created for id="<<m_object->getId()<<std::endl;
+	NO_MAP_LOCK_REQUIRED;
+	ObjectRef *ref = checkobject(L, 1);
+	RemotePlayer *player = getplayer(ref);
+	if (player == nullptr)
+		return 0;
+
+	luaL_checktype(L, 2, LUA_TTABLE);
+	std::vector<MinimapMode> modes;
+	s16 selected_mode = luaL_checkint(L, 3);
+
+	lua_pushnil(L);
+	while (lua_next(L, 2) != 0) {
+		/* key is at index -2, value is at index -1 */
+		if (lua_istable(L, -1)) {
+			bool ok = true;
+			MinimapMode mode;
+			std::string type = getstringfield_default(L, -1, "type", "");
+			if (type == "off")
+				mode.type = MINIMAP_TYPE_OFF;
+			else if (type == "surface")
+				mode.type = MINIMAP_TYPE_SURFACE;
+			else if (type == "radar")
+				mode.type = MINIMAP_TYPE_RADAR;
+			else if (type == "texture") {
+				mode.type = MINIMAP_TYPE_TEXTURE;
+				mode.texture = getstringfield_default(L, -1, "texture", "");
+				mode.scale = getintfield_default(L, -1, "scale", 1);
+			} else {
+				warningstream << "Minimap mode of unknown type \"" << type.c_str()
+					<< "\" ignored.\n" << std::endl;
+				ok = false;
+			}
+
+			if (ok) {
+				mode.label = getstringfield_default(L, -1, "label", "");
+				// Size is limited to 512. Performance gets poor if size too large, and
+				// segfaults have been experienced.
+				mode.size = rangelim(getintfield_default(L, -1, "size", 0), 1, 512);
+				modes.push_back(mode);
+			}
+		}
+		/* removes 'value'; keeps 'key' for next iteration */
+		lua_pop(L, 1);
+	}
+	lua_pop(L, 1); // Remove key
+
+	getServer(L)->SendMinimapModes(player->getPeerId(), modes, selected_mode);
+	return 0;
 }
 
+ObjectRef::ObjectRef(ServerActiveObject *object):
+	m_object(object)
+{}
+
 // Creates an ObjectRef and leaves it on top of stack
 // Not callable from Lua; all references are created on the C side.
 void ObjectRef::create(lua_State *L, ServerActiveObject *object)
 {
-	ObjectRef *o = new ObjectRef(object);
-	//infostream<<"ObjectRef::create: o="<<o<<std::endl;
-	*(void **)(lua_newuserdata(L, sizeof(void *))) = o;
+	ObjectRef *obj = new ObjectRef(object);
+	*(void **)(lua_newuserdata(L, sizeof(void *))) = obj;
 	luaL_getmetatable(L, className);
 	lua_setmetatable(L, -2);
 }
 
 void ObjectRef::set_null(lua_State *L)
 {
-	ObjectRef *o = checkobject(L, -1);
-	o->m_object = NULL;
+	ObjectRef *obj = checkobject(L, -1);
+	obj->m_object = nullptr;
 }
 
 void ObjectRef::Register(lua_State *L)
@@ -2245,12 +2282,8 @@ void ObjectRef::Register(lua_State *L)
 
 	lua_pop(L, 1);  // drop metatable
 
-	markAliasDeprecated(methods);
 	luaL_openlib(L, 0, methods, 0);  // fill methodtable
 	lua_pop(L, 1);  // drop methodtable
-
-	// Cannot be created from Lua
-	//lua_register(L, className, create_object);
 }
 
 const char ObjectRef::className[] = "ObjectRef";
@@ -2278,15 +2311,19 @@ luaL_Reg ObjectRef::methods[] = {
 	luamethod(ObjectRef, get_bone_position),
 	luamethod(ObjectRef, set_attach),
 	luamethod(ObjectRef, get_attach),
+	luamethod(ObjectRef, get_children),
 	luamethod(ObjectRef, set_detach),
 	luamethod(ObjectRef, set_properties),
 	luamethod(ObjectRef, get_properties),
 	luamethod(ObjectRef, set_nametag_attributes),
 	luamethod(ObjectRef, get_nametag_attributes),
-	// LuaEntitySAO-only
+
 	luamethod_aliased(ObjectRef, set_velocity, setvelocity),
-	luamethod(ObjectRef, add_velocity),
+	luamethod_aliased(ObjectRef, add_velocity, add_player_velocity),
 	luamethod_aliased(ObjectRef, get_velocity, getvelocity),
+	luamethod_dep(ObjectRef, get_velocity, get_player_velocity),
+
+	// LuaEntitySAO-only
 	luamethod_aliased(ObjectRef, set_acceleration, setacceleration),
 	luamethod_aliased(ObjectRef, get_acceleration, getacceleration),
 	luamethod_aliased(ObjectRef, set_yaw, setyaw),
@@ -2294,15 +2331,14 @@ luaL_Reg ObjectRef::methods[] = {
 	luamethod(ObjectRef, set_rotation),
 	luamethod(ObjectRef, get_rotation),
 	luamethod_aliased(ObjectRef, set_texture_mod, settexturemod),
+	luamethod(ObjectRef, get_texture_mod),
 	luamethod_aliased(ObjectRef, set_sprite, setsprite),
 	luamethod(ObjectRef, get_entity_name),
 	luamethod(ObjectRef, get_luaentity),
+
 	// Player-only
 	luamethod(ObjectRef, is_player),
-	luamethod(ObjectRef, is_player_connected),
 	luamethod(ObjectRef, get_player_name),
-	luamethod(ObjectRef, get_player_velocity),
-	luamethod(ObjectRef, add_player_velocity),
 	luamethod(ObjectRef, get_look_dir),
 	luamethod(ObjectRef, get_look_pitch),
 	luamethod(ObjectRef, get_look_yaw),
@@ -2357,5 +2393,6 @@ luaL_Reg ObjectRef::methods[] = {
 	luamethod(ObjectRef, set_eye_offset),
 	luamethod(ObjectRef, get_eye_offset),
 	luamethod(ObjectRef, send_mapblock),
+	luamethod(ObjectRef, set_minimap_modes),
 	{0,0}
 };
diff --git a/src/script/lua_api/l_object.h b/src/script/lua_api/l_object.h
index a75c59fd9..db3a3a7cf 100644
--- a/src/script/lua_api/l_object.h
+++ b/src/script/lua_api/l_object.h
@@ -69,29 +69,24 @@ private:
 	static int l_remove(lua_State *L);
 
 	// get_pos(self)
-	// returns: {x=num, y=num, z=num}
 	static int l_get_pos(lua_State *L);
 
 	// set_pos(self, pos)
 	static int l_set_pos(lua_State *L);
 
-	// move_to(self, pos, continuous=false)
+	// move_to(self, pos, continuous)
 	static int l_move_to(lua_State *L);
 
 	// punch(self, puncher, time_from_last_punch, tool_capabilities, dir)
 	static int l_punch(lua_State *L);
 
-	// right_click(self, clicker); clicker = an another ObjectRef
+	// right_click(self, clicker)
 	static int l_right_click(lua_State *L);
 
-	// set_hp(self, hp)
-	// hp = number of hitpoints (2 * number of hearts)
-	// returns: nil
+	// set_hp(self, hp, reason)
 	static int l_set_hp(lua_State *L);
 
 	// get_hp(self)
-	// returns: number of hitpoints (2 * number of hearts)
-	// 0 if not applicable to this type of object
 	static int l_get_hp(lua_State *L);
 
 	// get_inventory(self)
@@ -106,7 +101,7 @@ private:
 	// get_wielded_item(self)
 	static int l_get_wielded_item(lua_State *L);
 
-	// set_wielded_item(self, itemstack or itemstring or table or nil)
+	// set_wielded_item(self, item)
 	static int l_set_wielded_item(lua_State *L);
 
 	// set_armor_groups(self, groups)
@@ -115,8 +110,7 @@ private:
 	// get_armor_groups(self)
 	static int l_get_armor_groups(lua_State *L);
 
-	// set_physics_override(self, physics_override_speed, physics_override_jump,
-	//                      physics_override_gravity, sneak, sneak_glitch, new_move)
+	// set_physics_override(self, override_table)
 	static int l_set_physics_override(lua_State *L);
 
 	// get_physics_override(self)
@@ -131,7 +125,7 @@ private:
 	// get_animation(self)
 	static int l_get_animation(lua_State *L);
 
-	// set_bone_position(self, std::string bone, v3f position, v3f rotation)
+	// set_bone_position(self, bone, position, rotation)
 	static int l_set_bone_position(lua_State *L);
 
 	// get_bone_position(self, bone)
@@ -143,6 +137,9 @@ private:
 	// get_attach(self)
 	static int l_get_attach(lua_State *L);
 
+	// get_children(self)
+	static int l_get_children(lua_State *L);
+
 	// set_detach(self)
 	static int l_set_detach(lua_State *L);
 
@@ -157,28 +154,28 @@ private:
 
 	/* LuaEntitySAO-only */
 
-	// set_velocity(self, {x=num, y=num, z=num})
+	// set_velocity(self, velocity)
 	static int l_set_velocity(lua_State *L);
 
-	// add_velocity(self, {x=num, y=num, z=num})
+	// add_velocity(self, velocity)
 	static int l_add_velocity(lua_State *L);
 
 	// get_velocity(self)
 	static int l_get_velocity(lua_State *L);
 
-	// set_acceleration(self, {x=num, y=num, z=num})
+	// set_acceleration(self, acceleration)
 	static int l_set_acceleration(lua_State *L);
 
 	// get_acceleration(self)
 	static int l_get_acceleration(lua_State *L);
 
-	// set_rotation(self, {x=num, y=num, z=num})
+	// set_rotation(self, rotation)
 	static int l_set_rotation(lua_State *L);
 
 	// get_rotation(self)
 	static int l_get_rotation(lua_State *L);
 
-	// set_yaw(self, radians)
+	// set_yaw(self, yaw)
 	static int l_set_yaw(lua_State *L);
 
 	// get_yaw(self)
@@ -190,8 +187,7 @@ private:
 	// l_get_texture_mod(self)
 	static int l_get_texture_mod(lua_State *L);
 
-	// set_sprite(self, p={x=0,y=0}, num_frames=1, framelength=0.2,
-	//           select_horiz_by_yawpitch=false)
+	// set_sprite(self, start_frame, num_frames, framelength, select_x_by_camera)
 	static int l_set_sprite(lua_State *L);
 
 	// DEPRECATED
@@ -203,18 +199,9 @@ private:
 
 	/* Player-only */
 
-	// is_player_connected(self)
-	static int l_is_player_connected(lua_State *L);
-
 	// get_player_name(self)
 	static int l_get_player_name(lua_State *L);
 
-	// get_player_velocity(self)
-	static int l_get_player_velocity(lua_State *L);
-
-	// add_player_velocity(self, {x=num, y=num, z=num})
-	static int l_add_player_velocity(lua_State *L);
-
 	// get_fov(self)
 	static int l_get_fov(lua_State *L);
 
@@ -235,7 +222,7 @@ private:
 	// get_look_yaw2(self)
 	static int l_get_look_horizontal(lua_State *L);
 
-	// set_fov(self, degrees, is_multiplier)
+	// set_fov(self, degrees, is_multiplier, transition_time)
 	static int l_set_fov(lua_State *L);
 
 	// set_look_vertical(self, radians)
@@ -258,9 +245,11 @@ private:
 	// get_breath(self, breath)
 	static int l_get_breath(lua_State *L);
 
+	// DEPRECATED
 	// set_attribute(self, attribute, value)
 	static int l_set_attribute(lua_State *L);
 
+	// DEPRECATED
 	// get_attribute(self, attribute)
 	static int l_get_attribute(lua_State *L);
 
@@ -270,13 +259,13 @@ private:
 	// set_inventory_formspec(self, formspec)
 	static int l_set_inventory_formspec(lua_State *L);
 
-	// get_inventory_formspec(self) -> formspec
+	// get_inventory_formspec(self)
 	static int l_get_inventory_formspec(lua_State *L);
 
 	// set_formspec_prepend(self, formspec)
 	static int l_set_formspec_prepend(lua_State *L);
 
-	// get_formspec_prepend(self) -> formspec
+	// get_formspec_prepend(self)
 	static int l_get_formspec_prepend(lua_State *L);
 
 	// get_player_control(self)
@@ -324,7 +313,7 @@ private:
 	// hud_get_hotbar_selected_image(self)
 	static int l_hud_get_hotbar_selected_image(lua_State *L);
 
-	// set_sky({base_color=, type=, textures=, clouds=, sky_colors={}})
+	// set_sky(self, sky_parameters)
 	static int l_set_sky(lua_State *L);
 
 	// get_sky(self)
@@ -333,25 +322,25 @@ private:
 	// get_sky_color(self)
 	static int l_get_sky_color(lua_State* L);
 
-	// set_sun(self, {visible, texture=, tonemap=, sunrise=, rotation=, scale=})
+	// set_sun(self, sun_parameters)
 	static int l_set_sun(lua_State *L);
 
 	// get_sun(self)
 	static int l_get_sun(lua_State *L);
 
-	// set_moon(self, {visible, texture=, tonemap=, rotation, scale=})
+	// set_moon(self, moon_parameters)
 	static int l_set_moon(lua_State *L);
 
 	// get_moon(self)
 	static int l_get_moon(lua_State *L);
 
-	// set_stars(self, {visible, count=, starcolor=, rotation, scale=})
+	// set_stars(self, star_parameters)
 	static int l_set_stars(lua_State *L);
 
 	// get_stars(self)
 	static int l_get_stars(lua_State *L);
 
-	// set_clouds(self, {density=, color=, ambient=, height=, thickness=, speed=})
+	// set_clouds(self, cloud_parameters)
 	static int l_set_clouds(lua_State *L);
 
 	// get_clouds(self)
@@ -363,13 +352,13 @@ private:
 	// get_day_night_ratio(self)
 	static int l_get_day_night_ratio(lua_State *L);
 
-	// set_local_animation(self, {stand/idle}, {walk}, {dig}, {walk+dig}, frame_speed)
+	// set_local_animation(self, idle, walk, dig, walk_while_dig, frame_speed)
 	static int l_set_local_animation(lua_State *L);
 
 	// get_local_animation(self)
 	static int l_get_local_animation(lua_State *L);
 
-	// set_eye_offset(self, v3f first pv, v3f third pv)
+	// set_eye_offset(self, firstperson, thirdperson)
 	static int l_set_eye_offset(lua_State *L);
 
 	// get_eye_offset(self)
@@ -383,4 +372,7 @@ private:
 
 	// send_mapblock(pos)
 	static int l_send_mapblock(lua_State *L);
+
+	// set_minimap_modes(self, modes, wanted_mode)
+	static int l_set_minimap_modes(lua_State *L);
 };
diff --git a/src/server.cpp b/src/server.cpp
index fe2bb3840..8f6257afe 100644
--- a/src/server.cpp
+++ b/src/server.cpp
@@ -213,7 +213,8 @@ Server::Server(
 		bool simple_singleplayer_mode,
 		Address bind_addr,
 		bool dedicated,
-		ChatInterface *iface
+		ChatInterface *iface,
+		std::string *on_shutdown_errmsg
 	):
 	m_bind_addr(bind_addr),
 	m_path_world(path_world),
@@ -232,6 +233,7 @@ Server::Server(
 	m_thread(new ServerThread(this)),
 	m_clients(m_con),
 	m_admin_chat(iface),
+	m_on_shutdown_errmsg(on_shutdown_errmsg),
 	m_modchannel_mgr(new ModChannelMgr())
 {
 	if (m_path_world.empty())
@@ -314,7 +316,18 @@ Server::~Server()
 
 		// Execute script shutdown hooks
 		infostream << "Executing shutdown hooks" << std::endl;
-		m_script->on_shutdown();
+		try {
+			m_script->on_shutdown();
+		} catch (ModError &e) {
+			errorstream << "ModError: " << e.what() << std::endl;
+			if (m_on_shutdown_errmsg) {
+				if (m_on_shutdown_errmsg->empty()) {
+					*m_on_shutdown_errmsg = std::string("ModError: ") + e.what();
+				} else {
+					*m_on_shutdown_errmsg += std::string("\nModError: ") + e.what();
+				}
+			}
+		}
 
 		infostream << "Server: Saving environment metadata" << std::endl;
 		m_env->saveMeta();
@@ -356,8 +369,13 @@ void Server::init()
 	infostream << "- game:   " << m_gamespec.path << std::endl;
 
 	// Create world if it doesn't exist
-	if (!loadGameConfAndInitWorld(m_path_world, m_gamespec))
-		throw ServerError("Failed to initialize world");
+	try {
+		loadGameConfAndInitWorld(m_path_world,
+				fs::GetFilenameFromPath(m_path_world.c_str()),
+				m_gamespec, false);
+	} catch (const BaseException &e) {
+		throw ServerError(std::string("Failed to initialize world: ") + e.what());
+	}
 
 	// Create emerge manager
 	m_emerge = new EmergeManager(this);
@@ -635,7 +653,12 @@ void Server::AsyncRunStep(bool initial_step)
 	}
 	m_clients.step(dtime);
 
-	m_lag_gauge->increment((m_lag_gauge->get() > dtime ? -1 : 1) * dtime/100);
+	// increase/decrease lag gauge gradually
+	if (m_lag_gauge->get() > dtime) {
+		m_lag_gauge->decrement(dtime/100);
+	} else {
+		m_lag_gauge->increment(dtime/100);
+	}
 #if USE_CURL
 	// send masterserver announce
 	{
@@ -779,7 +802,7 @@ void Server::AsyncRunStep(bool initial_step)
 					// u16 id
 					// std::string data
 					buffer.append(idbuf, sizeof(idbuf));
-					buffer.append(serializeString(aom.datastring));
+					buffer.append(serializeString16(aom.datastring));
 				}
 			}
 			/*
@@ -1970,7 +1993,7 @@ void Server::SendActiveObjectRemoveAdd(RemoteClient *client, PlayerSAO *playersa
 		writeU8((u8*)buf, type);
 		data.append(buf, 1);
 
-		data.append(serializeLongString(
+		data.append(serializeString32(
 			obj->getClientInitializationData(client->net_proto_version)));
 
 		// Add to known objects
@@ -2315,7 +2338,7 @@ void Server::SendBlockNoLock(session_t peer_id, MapBlock *block, u8 ver,
 	block->serializeNetworkSpecific(os);
 	std::string s = os.str();
 
-	NetworkPacket pkt(TOCLIENT_BLOCKDATA, 2 + 2 + 2 + 2 + s.size(), peer_id);
+	NetworkPacket pkt(TOCLIENT_BLOCKDATA, 2 + 2 + 2 + s.size(), peer_id);
 
 	pkt << block->getPos();
 	pkt.putRawString(s.c_str(), s.size());
@@ -2433,31 +2456,14 @@ bool Server::addMediaFile(const std::string &filename,
 	// Ok, attempt to load the file and add to cache
 
 	// Read data
-	std::ifstream fis(filepath.c_str(), std::ios_base::binary);
-	if (!fis.good()) {
-		errorstream << "Server::addMediaFile(): Could not open \""
-				<< filename << "\" for reading" << std::endl;
-		return false;
-	}
 	std::string filedata;
-	bool bad = false;
-	for (;;) {
-		char buf[1024];
-		fis.read(buf, sizeof(buf));
-		std::streamsize len = fis.gcount();
-		filedata.append(buf, len);
-		if (fis.eof())
-			break;
-		if (!fis.good()) {
-			bad = true;
-			break;
-		}
-	}
-	if (bad) {
-		errorstream << "Server::addMediaFile(): Failed to read \""
-				<< filename << "\"" << std::endl;
+	if (!fs::ReadFile(filepath, filedata)) {
+		errorstream << "Server::addMediaFile(): Failed to open \""
+					<< filename << "\" for reading" << std::endl;
 		return false;
-	} else if (filedata.empty()) {
+	}
+
+	if (filedata.empty()) {
 		errorstream << "Server::addMediaFile(): Empty file \""
 				<< filepath << "\"" << std::endl;
 		return false;
@@ -2489,19 +2495,25 @@ void Server::fillMediaCache()
 
 	// Collect all media file paths
 	std::vector<std::string> paths;
-	m_modmgr->getModsMediaPaths(paths);
-	fs::GetRecursiveDirs(paths, m_gamespec.path + DIR_DELIM + "textures");
+	// The paths are ordered in descending priority
 	fs::GetRecursiveDirs(paths, porting::path_user + DIR_DELIM + "textures" + DIR_DELIM + "server");
+	fs::GetRecursiveDirs(paths, m_gamespec.path + DIR_DELIM + "textures");
+	m_modmgr->getModsMediaPaths(paths);
 
 	// Collect media file information from paths into cache
 	for (const std::string &mediapath : paths) {
 		std::vector<fs::DirListNode> dirlist = fs::GetDirListing(mediapath);
 		for (const fs::DirListNode &dln : dirlist) {
-			if (dln.dir) // Ignore dirs
+			if (dln.dir) // Ignore dirs (already in paths)
+				continue;
+
+			const std::string &filename = dln.name;
+			if (m_media.find(filename) != m_media.end()) // Do not override
 				continue;
+
 			std::string filepath = mediapath;
-			filepath.append(DIR_DELIM).append(dln.name);
-			addMediaFile(dln.name, filepath);
+			filepath.append(DIR_DELIM).append(filename);
+			addMediaFile(filename, filepath);
 		}
 	}
 
@@ -2650,6 +2662,23 @@ void Server::sendRequestedMedia(session_t peer_id,
 	}
 }
 
+void Server::SendMinimapModes(session_t peer_id,
+		std::vector<MinimapMode> &modes, size_t wanted_mode)
+{
+	RemotePlayer *player = m_env->getPlayer(peer_id);
+	assert(player);
+	if (player->getPeerId() == PEER_ID_INEXISTENT)
+		return;
+
+	NetworkPacket pkt(TOCLIENT_MINIMAP_MODES, 0, peer_id);
+	pkt << (u16)modes.size() << (u16)wanted_mode;
+
+	for (auto &mode : modes)
+		pkt << (u16)mode.type << mode.label << mode.size << mode.texture << mode.scale;
+
+	Send(&pkt);
+}
+
 void Server::sendDetachedInventory(Inventory *inventory, const std::string &name, session_t peer_id)
 {
 	NetworkPacket pkt(TOCLIENT_DETACHED_INVENTORY, 0, peer_id);
@@ -3866,19 +3895,27 @@ void Server::broadcastModChannelMessage(const std::string &channel,
 	}
 }
 
-void Server::loadTranslationLanguage(const std::string &lang_code)
+Translations *Server::getTranslationLanguage(const std::string &lang_code)
 {
-	if (g_server_translations->count(lang_code))
-		return; // Already loaded
+	if (lang_code.empty())
+		return nullptr;
+
+	auto it = server_translations.find(lang_code);
+	if (it != server_translations.end())
+		return &it->second; // Already loaded
+
+	// [] will create an entry
+	auto *translations = &server_translations[lang_code];
 
 	std::string suffix = "." + lang_code + ".tr";
 	for (const auto &i : m_media) {
 		if (str_ends_with(i.first, suffix)) {
-			std::ifstream t(i.second.path);
-			std::string data((std::istreambuf_iterator<char>(t)),
-			std::istreambuf_iterator<char>());
-
-			(*g_server_translations)[lang_code].loadTranslation(data);
+			std::string data;
+			if (fs::ReadFile(i.second.path, data)) {
+				translations->loadTranslation(data);
+			}
 		}
 	}
+
+	return translations;
 }
diff --git a/src/server.h b/src/server.h
index f44716531..4b3ac5cf7 100644
--- a/src/server.h
+++ b/src/server.h
@@ -38,6 +38,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "serverenvironment.h"
 #include "clientiface.h"
 #include "chatmessage.h"
+#include "translation.h"
 #include <string>
 #include <list>
 #include <map>
@@ -117,6 +118,14 @@ struct ServerPlayingSound
 	std::unordered_set<session_t> clients; // peer ids
 };
 
+struct MinimapMode {
+	MinimapType type = MINIMAP_TYPE_OFF;
+	std::string label;
+	u16 size = 0;
+	std::string texture;
+	u16 scale = 1;
+};
+
 class Server : public con::PeerHandler, public MapEventReceiver,
 		public IGameDef
 {
@@ -131,7 +140,8 @@ public:
 		bool simple_singleplayer_mode,
 		Address bind_addr,
 		bool dedicated,
-		ChatInterface *iface = nullptr
+		ChatInterface *iface = nullptr,
+		std::string *on_shutdown_errmsg = nullptr
 	);
 	~Server();
 	DISABLE_CLASS_COPY(Server);
@@ -329,6 +339,10 @@ public:
 	void SendPlayerSpeed(session_t peer_id, const v3f &added_vel);
 	void SendPlayerFov(session_t peer_id);
 
+	void SendMinimapModes(session_t peer_id,
+			std::vector<MinimapMode> &modes,
+			size_t wanted_mode);
+
 	void sendDetachedInventories(session_t peer_id, bool incremental);
 
 	virtual bool registerModStorage(ModMetadata *storage);
@@ -342,8 +356,8 @@ public:
 	// Send block to specific player only
 	bool SendBlock(session_t peer_id, const v3s16 &blockpos);
 
-	// Load translations for a language
-	void loadTranslationLanguage(const std::string &lang_code);
+	// Get or load translations for a language
+	Translations *getTranslationLanguage(const std::string &lang_code);
 
 	// Bind address
 	Address m_bind_addr;
@@ -556,6 +570,8 @@ private:
 	// Mods
 	std::unique_ptr<ServerModManager> m_modmgr;
 
+	std::unordered_map<std::string, Translations> server_translations;
+
 	/*
 		Threads
 	*/
@@ -596,6 +612,10 @@ private:
 	ChatInterface *m_admin_chat;
 	std::string m_admin_nick;
 
+	// if a mod-error occurs in the on_shutdown callback, the error message will
+	// be written into this
+	std::string *const m_on_shutdown_errmsg;
+
 	/*
 		Map edit event queue. Automatically receives all map edits.
 		The constructor of this class registers us to receive them through
diff --git a/src/server/luaentity_sao.cpp b/src/server/luaentity_sao.cpp
index d504c42ca..b39797531 100644
--- a/src/server/luaentity_sao.cpp
+++ b/src/server/luaentity_sao.cpp
@@ -42,8 +42,8 @@ LuaEntitySAO::LuaEntitySAO(ServerEnvironment *env, v3f pos, const std::string &d
 		u8 version2 = 0;
 		u8 version = readU8(is);
 
-		name = deSerializeString(is);
-		state = deSerializeLongString(is);
+		name = deSerializeString16(is);
+		state = deSerializeString32(is);
 
 		if (version < 1)
 			break;
@@ -225,7 +225,7 @@ std::string LuaEntitySAO::getClientInitializationData(u16 protocol_version)
 
 	// PROTOCOL_VERSION >= 37
 	writeU8(os, 1); // version
-	os << serializeString(""); // name
+	os << serializeString16(""); // name
 	writeU8(os, 0); // is_player
 	writeU16(os, getId()); //id
 	writeV3F32(os, m_base_position);
@@ -233,26 +233,26 @@ std::string LuaEntitySAO::getClientInitializationData(u16 protocol_version)
 	writeU16(os, m_hp);
 
 	std::ostringstream msg_os(std::ios::binary);
-	msg_os << serializeLongString(getPropertyPacket()); // message 1
-	msg_os << serializeLongString(generateUpdateArmorGroupsCommand()); // 2
-	msg_os << serializeLongString(generateUpdateAnimationCommand()); // 3
+	msg_os << serializeString32(getPropertyPacket()); // message 1
+	msg_os << serializeString32(generateUpdateArmorGroupsCommand()); // 2
+	msg_os << serializeString32(generateUpdateAnimationCommand()); // 3
 	for (const auto &bone_pos : m_bone_position) {
-		msg_os << serializeLongString(generateUpdateBonePositionCommand(
-			bone_pos.first, bone_pos.second.X, bone_pos.second.Y)); // m_bone_position.size
+		msg_os << serializeString32(generateUpdateBonePositionCommand(
+			bone_pos.first, bone_pos.second.X, bone_pos.second.Y)); // 3 + N
 	}
-	msg_os << serializeLongString(generateUpdateAttachmentCommand()); // 4
+	msg_os << serializeString32(generateUpdateAttachmentCommand()); // 4 + m_bone_position.size
 
 	int message_count = 4 + m_bone_position.size();
 
 	for (const auto &id : getAttachmentChildIds()) {
 		if (ServerActiveObject *obj = m_env->getActiveObject(id)) {
 			message_count++;
-			msg_os << serializeLongString(obj->generateUpdateInfantCommand(
+			msg_os << serializeString32(obj->generateUpdateInfantCommand(
 				id, protocol_version));
 		}
 	}
 
-	msg_os << serializeLongString(generateSetTextureModCommand());
+	msg_os << serializeString32(generateSetTextureModCommand());
 	message_count++;
 
 	writeU8(os, message_count);
@@ -270,14 +270,14 @@ void LuaEntitySAO::getStaticData(std::string *result) const
 	// version must be 1 to keep backwards-compatibility. See version2
 	writeU8(os, 1);
 	// name
-	os<<serializeString(m_init_name);
+	os<<serializeString16(m_init_name);
 	// state
 	if(m_registered){
 		std::string state = m_env->getScriptIface()->
 			luaentity_GetStaticdata(m_id);
-		os<<serializeLongString(state);
+		os<<serializeString32(state);
 	} else {
-		os<<serializeLongString(m_init_state);
+		os<<serializeString32(m_init_state);
 	}
 	writeU16(os, m_hp);
 	writeV3F1000(os, m_velocity);
@@ -436,7 +436,7 @@ std::string LuaEntitySAO::generateSetTextureModCommand() const
 	// command
 	writeU8(os, AO_CMD_SET_TEXTURE_MOD);
 	// parameters
-	os << serializeString(m_current_texture_modifier);
+	os << serializeString16(m_current_texture_modifier);
 	return os.str();
 }
 
diff --git a/src/server/luaentity_sao.h b/src/server/luaentity_sao.h
index 2520c8f5d..e060aa06d 100644
--- a/src/server/luaentity_sao.h
+++ b/src/server/luaentity_sao.h
@@ -42,6 +42,7 @@ public:
 	void step(float dtime, bool send_recommended);
 	std::string getClientInitializationData(u16 protocol_version);
 	bool isStaticAllowed() const { return m_prop.static_save; }
+	bool shouldUnload() const { return true; }
 	void getStaticData(std::string *result) const;
 	u16 punch(v3f dir, const ToolCapabilities *toolcap = nullptr,
 			ServerActiveObject *puncher = nullptr,
diff --git a/src/server/mods.cpp b/src/server/mods.cpp
index 6ac530739..cf1467648 100644
--- a/src/server/mods.cpp
+++ b/src/server/mods.cpp
@@ -99,10 +99,10 @@ void ServerModManager::getModNames(std::vector<std::string> &modlist) const
 void ServerModManager::getModsMediaPaths(std::vector<std::string> &paths) const
 {
 	for (const ModSpec &spec : m_sorted_mods) {
-		paths.push_back(spec.path + DIR_DELIM + "textures");
-		paths.push_back(spec.path + DIR_DELIM + "sounds");
-		paths.push_back(spec.path + DIR_DELIM + "media");
-		paths.push_back(spec.path + DIR_DELIM + "models");
-		paths.push_back(spec.path + DIR_DELIM + "locale");
+		fs::GetRecursiveDirs(paths, spec.path + DIR_DELIM + "textures");
+		fs::GetRecursiveDirs(paths, spec.path + DIR_DELIM + "sounds");
+		fs::GetRecursiveDirs(paths, spec.path + DIR_DELIM + "media");
+		fs::GetRecursiveDirs(paths, spec.path + DIR_DELIM + "models");
+		fs::GetRecursiveDirs(paths, spec.path + DIR_DELIM + "locale");
 	}
 }
diff --git a/src/server/player_sao.cpp b/src/server/player_sao.cpp
index 3d9f08bfa..62515d1c9 100644
--- a/src/server/player_sao.cpp
+++ b/src/server/player_sao.cpp
@@ -55,6 +55,7 @@ PlayerSAO::PlayerSAO(ServerEnvironment *env_, RemotePlayer *player_, session_t p
 	m_prop.backface_culling = false;
 	m_prop.makes_footstep_sound = true;
 	m_prop.stepheight = PLAYER_DEFAULT_STEPHEIGHT * BS;
+	m_prop.show_on_minimap = true;
 	m_hp = m_prop.hp_max;
 	m_breath = m_prop.breath_max;
 	// Disable zoom in survival mode using a value of 0
@@ -109,7 +110,7 @@ std::string PlayerSAO::getClientInitializationData(u16 protocol_version)
 
 	// Protocol >= 15
 	writeU8(os, 1); // version
-	os << serializeString(m_player->getName()); // name
+	os << serializeString16(m_player->getName()); // name
 	writeU8(os, 1); // is_player
 	writeS16(os, getId()); // id
 	writeV3F32(os, m_base_position);
@@ -117,22 +118,22 @@ std::string PlayerSAO::getClientInitializationData(u16 protocol_version)
 	writeU16(os, getHP());
 
 	std::ostringstream msg_os(std::ios::binary);
-	msg_os << serializeLongString(getPropertyPacket()); // message 1
-	msg_os << serializeLongString(generateUpdateArmorGroupsCommand()); // 2
-	msg_os << serializeLongString(generateUpdateAnimationCommand()); // 3
+	msg_os << serializeString32(getPropertyPacket()); // message 1
+	msg_os << serializeString32(generateUpdateArmorGroupsCommand()); // 2
+	msg_os << serializeString32(generateUpdateAnimationCommand()); // 3
 	for (const auto &bone_pos : m_bone_position) {
-		msg_os << serializeLongString(generateUpdateBonePositionCommand(
-			bone_pos.first, bone_pos.second.X, bone_pos.second.Y)); // m_bone_position.size
+		msg_os << serializeString32(generateUpdateBonePositionCommand(
+			bone_pos.first, bone_pos.second.X, bone_pos.second.Y)); // 3 + N
 	}
-	msg_os << serializeLongString(generateUpdateAttachmentCommand()); // 4
-	msg_os << serializeLongString(generateUpdatePhysicsOverrideCommand()); // 5
+	msg_os << serializeString32(generateUpdateAttachmentCommand()); // 4 + m_bone_position.size
+	msg_os << serializeString32(generateUpdatePhysicsOverrideCommand()); // 5 + m_bone_position.size
 
 	int message_count = 5 + m_bone_position.size();
 
 	for (const auto &id : getAttachmentChildIds()) {
 		if (ServerActiveObject *obj = m_env->getActiveObject(id)) {
 			message_count++;
-			msg_os << serializeLongString(obj->generateUpdateInfantCommand(
+			msg_os << serializeString32(obj->generateUpdateInfantCommand(
 				id, protocol_version));
 		}
 	}
@@ -457,20 +458,25 @@ u16 PlayerSAO::punch(v3f dir,
 
 void PlayerSAO::setHP(s32 hp, const PlayerHPChangeReason &reason)
 {
-	s32 oldhp = m_hp;
+	if (hp == (s32)m_hp)
+		return; // Nothing to do
 
-	//hp = rangelim(hp, 0, m_prop.hp_max);
+	if (m_hp <= 0 && hp < (s32)m_hp)
+		return; // Cannot take more damage
 
-	if (oldhp != hp) {
-		s32 hp_change = m_env->getScriptIface()->on_player_hpchange(this, hp - oldhp, reason);
+	{
+		s32 hp_change = m_env->getScriptIface()->on_player_hpchange(this, hp - m_hp, reason);
 		if (hp_change == 0)
 			return;
 
-		hp = rangelim(oldhp + hp_change, 0, m_prop.hp_max);
+		hp = m_hp + hp_change;
 	}
 
+	s32 oldhp = m_hp;
+	hp = rangelim(hp, 0, m_prop.hp_max);
+
 	if (hp < oldhp && isImmortal())
-		return;
+		return; // Do not allow immortal players to be damaged
 
 	m_hp = hp;
 
@@ -558,11 +564,35 @@ void PlayerSAO::setMaxSpeedOverride(const v3f &vel)
 
 bool PlayerSAO::checkMovementCheat()
 {
-	if (isAttached() || m_is_singleplayer ||
+	if (m_is_singleplayer ||
 			g_settings->getBool("disable_anticheat")) {
 		m_last_good_position = m_base_position;
 		return false;
 	}
+	if (UnitSAO *parent = dynamic_cast<UnitSAO *>(getParent())) {
+		v3f attachment_pos;
+		{
+			int parent_id;
+			std::string bone;
+			v3f attachment_rot;
+			bool force_visible;
+			getAttachment(&parent_id, &bone, &attachment_pos, &attachment_rot, &force_visible);
+		}
+
+		v3f parent_pos = parent->getBasePosition();
+		f32 diff = m_base_position.getDistanceFromSQ(parent_pos) - attachment_pos.getLengthSQ();
+		const f32 maxdiff = 4.0f * BS; // fair trade-off value for various latencies
+
+		if (diff > maxdiff * maxdiff) {
+			setBasePosition(parent_pos);
+			actionstream << "Server: " << m_player->getName()
+					<< " moved away from parent; diff=" << sqrtf(diff) / BS
+					<< " resetting position." << std::endl;
+			return true;
+		}
+		// Player movement is locked to the entity. Skip further checks
+		return false;
+	}
 
 	bool cheated = false;
 	/*
diff --git a/src/server/player_sao.h b/src/server/player_sao.h
index 8571bd4f9..3e178d4fc 100644
--- a/src/server/player_sao.h
+++ b/src/server/player_sao.h
@@ -83,6 +83,7 @@ public:
 	void addedToEnvironment(u32 dtime_s);
 	void removingFromEnvironment();
 	bool isStaticAllowed() const { return false; }
+	bool shouldUnload() const { return false; }
 	std::string getClientInitializationData(u16 protocol_version);
 	void getStaticData(std::string *result) const;
 	void step(float dtime, bool send_recommended);
diff --git a/src/server/serveractiveobject.cpp b/src/server/serveractiveobject.cpp
index 3341dc008..8cb59b2d6 100644
--- a/src/server/serveractiveobject.cpp
+++ b/src/server/serveractiveobject.cpp
@@ -61,7 +61,7 @@ std::string ServerActiveObject::generateUpdateInfantCommand(u16 infant_id, u16 p
 		// Clients since 4aa9a66 so no longer need this data
 		// Version 38 is the first bump after that commit.
 		// See also: ClientEnvironment::addActiveObject
-		os << serializeLongString(getClientInitializationData(protocol_version));
+		os << serializeString32(getClientInitializationData(protocol_version));
 	}
 	return os.str();
 }
diff --git a/src/server/serveractiveobject.h b/src/server/serveractiveobject.h
index 927009aef..2764d159e 100644
--- a/src/server/serveractiveobject.h
+++ b/src/server/serveractiveobject.h
@@ -125,6 +125,7 @@ public:
 		assert(isStaticAllowed());
 		*result = "";
 	}
+
 	/*
 		Return false in here to never save and instead remove object
 		on unload. getStaticData() will not be called in that case.
@@ -132,6 +133,14 @@ public:
 	virtual bool isStaticAllowed() const
 	{return true;}
 
+	/*
+		Return false here to never unload the object.
+		isStaticAllowed && shouldUnload -> unload when out of active block range
+		!isStaticAllowed && shouldUnload -> unload when block is unloaded
+	*/
+	virtual bool shouldUnload() const
+	{ return true; }
+
 	// Returns tool wear
 	virtual u16 punch(v3f dir,
 			const ToolCapabilities *toolcap = nullptr,
diff --git a/src/server/unit_sao.cpp b/src/server/unit_sao.cpp
index ef0e87f2c..2371640ca 100644
--- a/src/server/unit_sao.cpp
+++ b/src/server/unit_sao.cpp
@@ -121,8 +121,8 @@ void UnitSAO::sendOutdatedData()
 }
 // clang-format on
 
-void UnitSAO::setAttachment(
-		int parent_id, const std::string &bone, v3f position, v3f rotation)
+void UnitSAO::setAttachment(int parent_id, const std::string &bone, v3f position,
+		v3f rotation, bool force_visible)
 {
 	// Attachments need to be handled on both the server and client.
 	// If we just attach on the server, we can only copy the position of the parent.
@@ -137,6 +137,7 @@ void UnitSAO::setAttachment(
 	m_attachment_bone = bone;
 	m_attachment_position = position;
 	m_attachment_rotation = rotation;
+	m_force_visible = force_visible;
 	m_attachment_sent = false;
 
 	if (parent_id != old_parent) {
@@ -145,13 +146,14 @@ void UnitSAO::setAttachment(
 	}
 }
 
-void UnitSAO::getAttachment(
-		int *parent_id, std::string *bone, v3f *position, v3f *rotation) const
+void UnitSAO::getAttachment(int *parent_id, std::string *bone, v3f *position,
+		v3f *rotation, bool *force_visible) const
 {
 	*parent_id = m_attachment_parent_id;
 	*bone = m_attachment_bone;
 	*position = m_attachment_position;
 	*rotation = m_attachment_rotation;
+	*force_visible = m_force_visible;
 }
 
 void UnitSAO::clearChildAttachments()
@@ -159,7 +161,7 @@ void UnitSAO::clearChildAttachments()
 	for (int child_id : m_attachment_child_ids) {
 		// Child can be NULL if it was deleted earlier
 		if (ServerActiveObject *child = m_env->getActiveObject(child_id))
-			child->setAttachment(0, "", v3f(0, 0, 0), v3f(0, 0, 0));
+			child->setAttachment(0, "", v3f(0, 0, 0), v3f(0, 0, 0), false);
 	}
 	m_attachment_child_ids.clear();
 }
@@ -169,9 +171,9 @@ void UnitSAO::clearParentAttachment()
 	ServerActiveObject *parent = nullptr;
 	if (m_attachment_parent_id) {
 		parent = m_env->getActiveObject(m_attachment_parent_id);
-		setAttachment(0, "", m_attachment_position, m_attachment_rotation);
+		setAttachment(0, "", m_attachment_position, m_attachment_rotation, false);
 	} else {
-		setAttachment(0, "", v3f(0, 0, 0), v3f(0, 0, 0));
+		setAttachment(0, "", v3f(0, 0, 0), v3f(0, 0, 0), false);
 	}
 	// Do it
 	if (parent)
@@ -242,9 +244,10 @@ std::string UnitSAO::generateUpdateAttachmentCommand() const
 	writeU8(os, AO_CMD_ATTACH_TO);
 	// parameters
 	writeS16(os, m_attachment_parent_id);
-	os << serializeString(m_attachment_bone);
+	os << serializeString16(m_attachment_bone);
 	writeV3F32(os, m_attachment_position);
 	writeV3F32(os, m_attachment_rotation);
+	writeU8(os, m_force_visible);
 	return os.str();
 }
 
@@ -255,7 +258,7 @@ std::string UnitSAO::generateUpdateBonePositionCommand(
 	// command
 	writeU8(os, AO_CMD_SET_BONE_POSITION);
 	// parameters
-	os << serializeString(bone);
+	os << serializeString16(bone);
 	writeV3F32(os, position);
 	writeV3F32(os, rotation);
 	return os.str();
@@ -291,7 +294,7 @@ std::string UnitSAO::generateUpdateArmorGroupsCommand() const
 	writeU8(os, AO_CMD_UPDATE_ARMOR_GROUPS);
 	writeU16(os, m_armor_groups.size());
 	for (const auto &armor_group : m_armor_groups) {
-		os << serializeString(armor_group.first);
+		os << serializeString16(armor_group.first);
 		writeS16(os, armor_group.second);
 	}
 	return os.str();
diff --git a/src/server/unit_sao.h b/src/server/unit_sao.h
index 3cb7f0ad5..a21e055c5 100644
--- a/src/server/unit_sao.h
+++ b/src/server/unit_sao.h
@@ -64,9 +64,9 @@ public:
 	ServerActiveObject *getParent() const;
 	inline bool isAttached() const { return getParent(); }
 	void setAttachment(int parent_id, const std::string &bone, v3f position,
-			v3f rotation);
+			v3f rotation, bool force_visible);
 	void getAttachment(int *parent_id, std::string *bone, v3f *position,
-			v3f *rotation) const;
+			v3f *rotation, bool *force_visible) const;
 	void clearChildAttachments();
 	void clearParentAttachment();
 	void addAttachmentChild(int child_id);
@@ -133,4 +133,5 @@ private:
 	v3f m_attachment_position;
 	v3f m_attachment_rotation;
 	bool m_attachment_sent = false;
+	bool m_force_visible = false;
 };
diff --git a/src/serverenvironment.cpp b/src/serverenvironment.cpp
index ad2ffc9a4..d044b003d 100644
--- a/src/serverenvironment.cpp
+++ b/src/serverenvironment.cpp
@@ -1066,6 +1066,91 @@ bool ServerEnvironment::swapNode(v3s16 p, const MapNode &n)
 	return true;
 }
 
+u8 ServerEnvironment::findSunlight(v3s16 pos) const
+{
+	// Directions for neighbouring nodes with specified order
+	static const v3s16 dirs[] = {
+		v3s16(-1, 0, 0), v3s16(1, 0, 0), v3s16(0, 0, -1), v3s16(0, 0, 1),
+		v3s16(0, -1, 0), v3s16(0, 1, 0)
+	};
+
+	const NodeDefManager *ndef = m_server->ndef();
+
+	// found_light remembers the highest known sunlight value at pos
+	u8 found_light = 0;
+
+	struct stack_entry {
+		v3s16 pos;
+		s16 dist;
+	};
+	std::stack<stack_entry> stack;
+	stack.push({pos, 0});
+
+	std::unordered_map<s64, s8> dists;
+	dists[MapDatabase::getBlockAsInteger(pos)] = 0;
+
+	while (!stack.empty()) {
+		struct stack_entry e = stack.top();
+		stack.pop();
+
+		v3s16 currentPos = e.pos;
+		s8 dist = e.dist + 1;
+
+		for (const v3s16& off : dirs) {
+			v3s16 neighborPos = currentPos + off;
+			s64 neighborHash = MapDatabase::getBlockAsInteger(neighborPos);
+
+			// Do not walk neighborPos multiple times unless the distance to the start
+			// position is shorter
+			auto it = dists.find(neighborHash);
+			if (it != dists.end() && dist >= it->second)
+				continue;
+
+			// Position to walk
+			bool is_position_ok;
+			MapNode node = m_map->getNode(neighborPos, &is_position_ok);
+			if (!is_position_ok) {
+				// This happens very rarely because the map at currentPos is loaded
+				m_map->emergeBlock(neighborPos, false);
+				node = m_map->getNode(neighborPos, &is_position_ok);
+				if (!is_position_ok)
+					continue;  // not generated
+			}
+
+			const ContentFeatures &def = ndef->get(node);
+			if (!def.sunlight_propagates) {
+				// Do not test propagation here again
+				dists[neighborHash] = -1;
+				continue;
+			}
+
+			// Sunlight could have come from here
+			dists[neighborHash] = dist;
+			u8 daylight = node.param1 & 0x0f;
+
+			// In the special case where sunlight shines from above and thus
+			// does not decrease with upwards distance, daylight is always
+			// bigger than nightlight, which never reaches 15
+			int possible_finlight = daylight - dist;
+			if (possible_finlight <= found_light) {
+				// Light from here cannot make a brighter light at currentPos than
+				// found_light
+				continue;
+			}
+
+			u8 nightlight = node.param1 >> 4;
+			if (daylight > nightlight) {
+				// Found a valid daylight
+				found_light = possible_finlight;
+			} else {
+				// Sunlight may be darker, so walk the neighbours
+				stack.push({neighborPos, dist});
+			}
+		}
+	}
+	return found_light;
+}
+
 void ServerEnvironment::clearObjects(ClearObjectsMode mode)
 {
 	infostream << "ServerEnvironment::clearObjects(): "
@@ -1354,8 +1439,8 @@ void ServerEnvironment::step(float dtime)
 		std::shuffle(output.begin(), output.end(), m_rgen);
 
 		int i = 0;
-		// The time budget for ABMs is 20%.
-		u32 max_time_ms = m_cache_abm_interval * 1000 / 5;
+		// determine the time budget for ABMs
+		u32 max_time_ms = m_cache_abm_interval * 1000 * m_cache_abm_time_budget;
 		for (const v3s16 &p : output) {
 			MapBlock *block = m_map->getBlockNoCreateNoEx(p);
 			if (!block)
@@ -1887,8 +1972,8 @@ void ServerEnvironment::deactivateFarObjects(bool _force_delete)
 		// force_delete might be overriden per object
 		bool force_delete = _force_delete;
 
-		// Do not deactivate if static data creation not allowed
-		if (!force_delete && !obj->isStaticAllowed())
+		// Do not deactivate if disallowed
+		if (!force_delete && !obj->shouldUnload())
 			return false;
 
 		// removeRemovedObjects() is responsible for these
@@ -1917,7 +2002,10 @@ void ServerEnvironment::deactivateFarObjects(bool _force_delete)
 		}
 
 		// If block is still active, don't remove
-		if (!force_delete && m_active_blocks.contains(blockpos_o))
+		bool still_active = obj->isStaticAllowed() ?
+			m_active_blocks.contains(blockpos_o) :
+			getMap().getBlockNoCreateNoEx(blockpos_o) != nullptr;
+		if (!force_delete && still_active)
 			return false;
 
 		verbosestream << "ServerEnvironment::deactivateFarObjects(): "
diff --git a/src/serverenvironment.h b/src/serverenvironment.h
index af742e290..cfd5b8f3e 100644
--- a/src/serverenvironment.h
+++ b/src/serverenvironment.h
@@ -322,6 +322,9 @@ public:
 	bool removeNode(v3s16 p);
 	bool swapNode(v3s16 p, const MapNode &n);
 
+	// Find the daylight value at pos with a Depth First Search
+	u8 findSunlight(v3s16 pos) const;
+
 	// Find all active objects inside a radius around a point
 	void getObjectsInsideRadius(std::vector<ServerActiveObject *> &objects, const v3f &pos, float radius,
 			std::function<bool(ServerActiveObject *obj)> include_obj_cb)
diff --git a/src/serverlist.cpp b/src/serverlist.cpp
index 18264e933..80a8c2f1a 100644
--- a/src/serverlist.cpp
+++ b/src/serverlist.cpp
@@ -52,15 +52,7 @@ std::vector<ServerListSpec> getLocal()
 {
 	std::string path = ServerList::getFilePath();
 	std::string liststring;
-	if (fs::PathExists(path)) {
-		std::ifstream istream(path.c_str());
-		if (istream.is_open()) {
-			std::ostringstream ostream;
-			ostream << istream.rdbuf();
-			liststring = ostream.str();
-			istream.close();
-		}
-	}
+	fs::ReadFile(path, liststring);
 
 	return deSerialize(liststring);
 }
@@ -253,19 +245,26 @@ void sendAnnounce(AnnounceAction action,
 		for (const ModSpec &mod : mods) {
 			server["mods"].append(mod.name);
 		}
-		actionstream << "Announcing to " << g_settings->get("serverlist_url") << std::endl;
 	} else if (action == AA_UPDATE) {
 		if (lag)
 			server["lag"] = lag;
 	}
 
+	if (action == AA_START) {
+		actionstream << "Announcing " << aa_names[action] << " to " <<
+			g_settings->get("serverlist_url") << std::endl;
+	} else {
+		infostream << "Announcing " << aa_names[action] << " to " <<
+			g_settings->get("serverlist_url") << std::endl;
+	}
+
 	HTTPFetchRequest fetch_request;
 	fetch_request.url = g_settings->get("serverlist_url") + std::string("/announce");
-	fetch_request.post_fields["json"] = fastWriteJson(server);
+	fetch_request.method = HTTP_POST;
+	fetch_request.fields["json"] = fastWriteJson(server);
 	fetch_request.multipart = true;
 	httpfetch_async(fetch_request);
 }
 #endif
 
 } // namespace ServerList
-
diff --git a/src/settings.cpp b/src/settings.cpp
index 55404319e..f30ef34e9 100644
--- a/src/settings.cpp
+++ b/src/settings.cpp
@@ -45,7 +45,13 @@ Settings::~Settings()
 
 Settings & Settings::operator += (const Settings &other)
 {
-	update(other);
+	if (&other == this)
+		return *this;
+
+	MutexAutoLock lock(m_mutex);
+	MutexAutoLock lock2(other.m_mutex);
+
+	updateNoLock(other);
 
 	return *this;
 }
@@ -512,25 +518,6 @@ u32 Settings::getFlagStr(const std::string &name, const FlagDesc *flagdesc,
 	return flags;
 }
 
-// N.B. if getStruct() is used to read a non-POD aggregate type,
-// the behavior is undefined.
-bool Settings::getStruct(const std::string &name, const std::string &format,
-	void *out, size_t olen) const
-{
-	std::string valstr;
-
-	try {
-		valstr = get(name);
-	} catch (SettingNotFoundException &e) {
-		return false;
-	}
-
-	if (!deSerializeStringToStruct(valstr, format, out, olen))
-		return false;
-
-	return true;
-}
-
 
 bool Settings::getNoiseParams(const std::string &name, NoiseParams &np) const
 {
@@ -546,6 +533,7 @@ bool Settings::getNoiseParamsFromValue(const std::string &name,
 	if (!getNoEx(name, value))
 		return false;
 
+	// Format: f32,f32,(f32,f32,f32),s32,s32,f32[,f32]
 	Strfnd f(value);
 
 	np.offset   = stof(f.next(","));
@@ -615,28 +603,6 @@ std::vector<std::string> Settings::getNames() const
  * Getters that don't throw exceptions *
  ***************************************/
 
-bool Settings::getEntryNoEx(const std::string &name, SettingsEntry &val) const
-{
-	try {
-		val = getEntry(name);
-		return true;
-	} catch (SettingNotFoundException &e) {
-		return false;
-	}
-}
-
-
-bool Settings::getEntryDefaultNoEx(const std::string &name, SettingsEntry &val) const
-{
-	try {
-		val = getEntryDefault(name);
-		return true;
-	} catch (SettingNotFoundException &e) {
-		return false;
-	}
-}
-
-
 bool Settings::getGroupNoEx(const std::string &name, Settings *&val) const
 {
 	try {
@@ -822,15 +788,23 @@ bool Settings::setDefault(const std::string &name, const std::string &value)
 }
 
 
-bool Settings::setGroup(const std::string &name, Settings *group)
+bool Settings::setGroup(const std::string &name, const Settings &group)
 {
-	return setEntry(name, &group, true, false);
+	// Settings must own the group pointer
+	// avoid double-free by copying the source
+	Settings *copy = new Settings();
+	*copy = group;
+	return setEntry(name, &copy, true, false);
 }
 
 
-bool Settings::setGroupDefault(const std::string &name, Settings *group)
+bool Settings::setGroupDefault(const std::string &name, const Settings &group)
 {
-	return setEntry(name, &group, true, true);
+	// Settings must own the group pointer
+	// avoid double-free by copying the source
+	Settings *copy = new Settings();
+	*copy = group;
+	return setEntry(name, &copy, true, true);
 }
 
 
@@ -900,17 +874,6 @@ bool Settings::setFlagStr(const std::string &name, u32 flags,
 }
 
 
-bool Settings::setStruct(const std::string &name, const std::string &format,
-	void *value)
-{
-	std::string structstr;
-	if (!serializeStructToString(&structstr, format, value))
-		return false;
-
-	return set(name, structstr);
-}
-
-
 bool Settings::setNoiseParams(const std::string &name,
 	const NoiseParams &np, bool set_default)
 {
@@ -961,32 +924,6 @@ void Settings::clearDefaults()
 	clearDefaultsNoLock();
 }
 
-void Settings::updateValue(const Settings &other, const std::string &name)
-{
-	if (&other == this)
-		return;
-
-	MutexAutoLock lock(m_mutex);
-
-	try {
-		m_settings[name] = other.get(name);
-	} catch (SettingNotFoundException &e) {
-	}
-}
-
-
-void Settings::update(const Settings &other)
-{
-	if (&other == this)
-		return;
-
-	MutexAutoLock lock(m_mutex);
-	MutexAutoLock lock2(other.m_mutex);
-
-	updateNoLock(other);
-}
-
-
 SettingsParseEvent Settings::parseConfigObject(const std::string &line,
 	const std::string &end, std::string &name, std::string &value)
 {
@@ -1052,7 +989,7 @@ void Settings::overrideDefaults(Settings *other)
 {
 	for (const auto &setting : other->m_settings) {
 		if (setting.second.is_group) {
-			setGroupDefault(setting.first, setting.second.group);
+			setGroupDefault(setting.first, *setting.second.group);
 			continue;
 		}
 		const FlagDesc *flagdesc = getFlagDescFallback(setting.first);
@@ -1102,6 +1039,19 @@ void Settings::deregisterChangedCallback(const std::string &name,
 	}
 }
 
+void Settings::removeSecureSettings()
+{
+	for (const auto &name : getNames()) {
+		if (name.compare(0, 7, "secure.") != 0)
+			continue;
+
+		errorstream << "Secure setting " << name
+				<< " isn't allowed, so was ignored."
+				<< std::endl;
+		remove(name);
+	}
+}
+
 void Settings::doCallbacks(const std::string &name) const
 {
 	MutexAutoLock lock(m_callback_mutex);
diff --git a/src/settings.h b/src/settings.h
index 0c9a155db..6db2f9481 100644
--- a/src/settings.h
+++ b/src/settings.h
@@ -113,23 +113,10 @@ public:
 	bool parseConfigLines(std::istream &is, const std::string &end = "");
 	void writeLines(std::ostream &os, u32 tab_depth=0) const;
 
-	SettingsParseEvent parseConfigObject(const std::string &line,
-		const std::string &end, std::string &name, std::string &value);
-	bool updateConfigObject(std::istream &is, std::ostream &os,
-		const std::string &end, u32 tab_depth=0);
-
-	static bool checkNameValid(const std::string &name);
-	static bool checkValueValid(const std::string &value);
-	static std::string getMultiline(std::istream &is, size_t *num_lines=NULL);
-	static void printEntry(std::ostream &os, const std::string &name,
-		const SettingsEntry &entry, u32 tab_depth=0);
-
 	/***********
 	 * Getters *
 	 ***********/
 
-	const SettingsEntry &getEntry(const std::string &name) const;
-	const SettingsEntry &getEntryDefault(const std::string &name) const;
 	Settings *getGroup(const std::string &name) const;
 	const std::string &get(const std::string &name) const;
 	const std::string &getDefault(const std::string &name) const;
@@ -144,10 +131,6 @@ public:
 	v3f getV3F(const std::string &name) const;
 	u32 getFlagStr(const std::string &name, const FlagDesc *flagdesc,
 			u32 *flagmask) const;
-	// N.B. if getStruct() is used to read a non-POD aggregate type,
-	// the behavior is undefined.
-	bool getStruct(const std::string &name, const std::string &format,
-			void *out, size_t olen) const;
 	bool getNoiseParams(const std::string &name, NoiseParams &np) const;
 	bool getNoiseParamsFromValue(const std::string &name, NoiseParams &np) const;
 	bool getNoiseParamsFromGroup(const std::string &name, NoiseParams &np) const;
@@ -161,8 +144,6 @@ public:
 	 * Getters that don't throw exceptions *
 	 ***************************************/
 
-	bool getEntryNoEx(const std::string &name, SettingsEntry &val) const;
-	bool getEntryDefaultNoEx(const std::string &name, SettingsEntry &val) const;
 	bool getGroupNoEx(const std::string &name, Settings *&val) const;
 	bool getNoEx(const std::string &name, std::string &val) const;
 	bool getDefaultNoEx(const std::string &name, std::string &val) const;
@@ -192,8 +173,8 @@ public:
 		bool set_group, bool set_default);
 	bool set(const std::string &name, const std::string &value);
 	bool setDefault(const std::string &name, const std::string &value);
-	bool setGroup(const std::string &name, Settings *group);
-	bool setGroupDefault(const std::string &name, Settings *group);
+	bool setGroup(const std::string &name, const Settings &group);
+	bool setGroupDefault(const std::string &name, const Settings &group);
 	bool setBool(const std::string &name, bool value);
 	bool setS16(const std::string &name, s16 value);
 	bool setU16(const std::string &name, u16 value);
@@ -206,16 +187,11 @@ public:
 		const FlagDesc *flagdesc = nullptr, u32 flagmask = U32_MAX);
 	bool setNoiseParams(const std::string &name, const NoiseParams &np,
 		bool set_default=false);
-	// N.B. if setStruct() is used to write a non-POD aggregate type,
-	// the behavior is undefined.
-	bool setStruct(const std::string &name, const std::string &format, void *value);
 
 	// remove a setting
 	bool remove(const std::string &name);
 	void clear();
 	void clearDefaults();
-	void updateValue(const Settings &other, const std::string &name);
-	void update(const Settings &other);
 
 	/**************
 	 * Miscellany *
@@ -231,7 +207,34 @@ public:
 	void deregisterChangedCallback(const std::string &name,
 		SettingsChangedCallback cbf, void *userdata = NULL);
 
+	void removeSecureSettings();
+
 private:
+	/***********************
+	 * Reading and writing *
+	 ***********************/
+
+	SettingsParseEvent parseConfigObject(const std::string &line,
+		const std::string &end, std::string &name, std::string &value);
+	bool updateConfigObject(std::istream &is, std::ostream &os,
+		const std::string &end, u32 tab_depth=0);
+
+	static bool checkNameValid(const std::string &name);
+	static bool checkValueValid(const std::string &value);
+	static std::string getMultiline(std::istream &is, size_t *num_lines=NULL);
+	static void printEntry(std::ostream &os, const std::string &name,
+		const SettingsEntry &entry, u32 tab_depth=0);
+
+	/***********
+	 * Getters *
+	 ***********/
+
+	const SettingsEntry &getEntry(const std::string &name) const;
+	const SettingsEntry &getEntryDefault(const std::string &name) const;
+
+	// Allow TestSettings to run sanity checks using private functions.
+	friend class TestSettings;
+
 	void updateNoLock(const Settings &other);
 	void clearNoLock();
 	void clearDefaultsNoLock();
diff --git a/src/settings_translation_file.cpp b/src/settings_translation_file.cpp
index febfbb9d3..0cd772337 100644
--- a/src/settings_translation_file.cpp
+++ b/src/settings_translation_file.cpp
@@ -242,13 +242,7 @@ fake_function() {
 	gettext("Enables Hable's 'Uncharted 2' filmic tone mapping.\nSimulates the tone curve of photographic film and how this approximates the\nappearance of high dynamic range images. Mid-range contrast is slightly\nenhanced, highlights and shadows are gradually compressed.");
 	gettext("Bumpmapping");
 	gettext("Bumpmapping");
-	gettext("Enables bumpmapping for textures. Normalmaps need to be supplied by the texture pack\nor need to be auto-generated.\nRequires shaders to be enabled.");
-	gettext("Generate normalmaps");
-	gettext("Enables on the fly normalmap generation (Emboss effect).\nRequires bumpmapping to be enabled.");
-	gettext("Normalmaps strength");
-	gettext("Strength of generated normalmaps.");
-	gettext("Normalmaps sampling");
-	gettext("Defines sampling step of texture.\nA higher value results in smoother normal maps.");
+	gettext("Enables bumpmapping for textures. Normalmaps need to be supplied by the texture pack.\nRequires shaders to be enabled.");
 	gettext("Parallax Occlusion");
 	gettext("Parallax occlusion");
 	gettext("Enables parallax occlusion mapping.\nRequires shaders to be enabled.");
diff --git a/src/sound.h b/src/sound.h
index 6cbd55e8f..6f7b0a1af 100644
--- a/src/sound.h
+++ b/src/sound.h
@@ -39,7 +39,7 @@ struct SimpleSoundSpec
 	// keep in sync with item definitions
 	void serialize(std::ostream &os, u8 cf_version) const
 	{
-		os << serializeString(name);
+		os << serializeString16(name);
 		writeF32(os, gain);
 		writeF32(os, pitch);
 		writeF32(os, fade);
@@ -49,7 +49,7 @@ struct SimpleSoundSpec
 
 	void deSerialize(std::istream &is, u8 cf_version)
 	{
-		name = deSerializeString(is);
+		name = deSerializeString16(is);
 		gain = readF32(is);
 		pitch = readF32(is);
 		fade = readF32(is);
diff --git a/src/staticobject.cpp b/src/staticobject.cpp
index 5ccb7baf5..86e455b9f 100644
--- a/src/staticobject.cpp
+++ b/src/staticobject.cpp
@@ -35,7 +35,7 @@ void StaticObject::serialize(std::ostream &os)
 	// pos
 	writeV3F1000(os, pos);
 	// data
-	os<<serializeString(data);
+	os<<serializeString16(data);
 }
 void StaticObject::deSerialize(std::istream &is, u8 version)
 {
@@ -44,7 +44,7 @@ void StaticObject::deSerialize(std::istream &is, u8 version)
 	// pos
 	pos = readV3F1000(is);
 	// data
-	data = deSerializeString(is);
+	data = deSerializeString16(is);
 }
 
 void StaticObjectList::serialize(std::ostream &os)
diff --git a/src/texture_override.cpp b/src/texture_override.cpp
index 10d129b87..effdb0efd 100644
--- a/src/texture_override.cpp
+++ b/src/texture_override.cpp
@@ -24,6 +24,8 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include <algorithm>
 #include <fstream>
 
+#define override_cast static_cast<override_t>
+
 TextureOverrideSource::TextureOverrideSource(std::string filepath)
 {
 	std::ifstream infile(filepath.c_str());
@@ -56,25 +58,37 @@ TextureOverrideSource::TextureOverrideSource(std::string filepath)
 		std::vector<std::string> targets = str_split(splitted[1], ',');
 		for (const std::string &target : targets) {
 			if (target == "top")
-				texture_override.target |= static_cast<u8>(OverrideTarget::TOP);
+				texture_override.target |= override_cast(OverrideTarget::TOP);
 			else if (target == "bottom")
-				texture_override.target |= static_cast<u8>(OverrideTarget::BOTTOM);
+				texture_override.target |= override_cast(OverrideTarget::BOTTOM);
 			else if (target == "left")
-				texture_override.target |= static_cast<u8>(OverrideTarget::LEFT);
+				texture_override.target |= override_cast(OverrideTarget::LEFT);
 			else if (target == "right")
-				texture_override.target |= static_cast<u8>(OverrideTarget::RIGHT);
+				texture_override.target |= override_cast(OverrideTarget::RIGHT);
 			else if (target == "front")
-				texture_override.target |= static_cast<u8>(OverrideTarget::FRONT);
+				texture_override.target |= override_cast(OverrideTarget::FRONT);
 			else if (target == "back")
-				texture_override.target |= static_cast<u8>(OverrideTarget::BACK);
+				texture_override.target |= override_cast(OverrideTarget::BACK);
 			else if (target == "inventory")
-				texture_override.target |= static_cast<u8>(OverrideTarget::INVENTORY);
+				texture_override.target |= override_cast(OverrideTarget::INVENTORY);
 			else if (target == "wield")
-				texture_override.target |= static_cast<u8>(OverrideTarget::WIELD);
+				texture_override.target |= override_cast(OverrideTarget::WIELD);
+			else if (target == "special1")
+				texture_override.target |= override_cast(OverrideTarget::SPECIAL_1);
+			else if (target == "special2")
+				texture_override.target |= override_cast(OverrideTarget::SPECIAL_2);
+			else if (target == "special3")
+				texture_override.target |= override_cast(OverrideTarget::SPECIAL_3);
+			else if (target == "special4")
+				texture_override.target |= override_cast(OverrideTarget::SPECIAL_4);
+			else if (target == "special5")
+				texture_override.target |= override_cast(OverrideTarget::SPECIAL_5);
+			else if (target == "special6")
+				texture_override.target |= override_cast(OverrideTarget::SPECIAL_6);
 			else if (target == "sides")
-				texture_override.target |= static_cast<u8>(OverrideTarget::SIDES);
+				texture_override.target |= override_cast(OverrideTarget::SIDES);
 			else if (target == "all" || target == "*")
-				texture_override.target |= static_cast<u8>(OverrideTarget::ALL_FACES);
+				texture_override.target |= override_cast(OverrideTarget::ALL_FACES);
 			else {
 				// Report invalid target
 				warningstream << filepath << ":" << line_index
@@ -85,7 +99,7 @@ TextureOverrideSource::TextureOverrideSource(std::string filepath)
 		}
 
 		// If there are no valid targets, skip adding this override
-		if (texture_override.target == static_cast<u8>(OverrideTarget::INVALID)) {
+		if (texture_override.target == override_cast(OverrideTarget::INVALID)) {
 			continue;
 		}
 
@@ -112,7 +126,7 @@ std::vector<TextureOverride> TextureOverrideSource::getNodeTileOverrides()
 	std::vector<TextureOverride> found_overrides;
 
 	for (const TextureOverride &texture_override : m_overrides) {
-		if (texture_override.hasTarget(OverrideTarget::ALL_FACES))
+		if (texture_override.hasTarget(OverrideTarget::NODE_TARGETS))
 			found_overrides.push_back(texture_override);
 	}
 
diff --git a/src/texture_override.h b/src/texture_override.h
index db03bd014..bdc95e732 100644
--- a/src/texture_override.h
+++ b/src/texture_override.h
@@ -23,8 +23,10 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include <string>
 #include <vector>
 
+typedef u16 override_t;
+
 //! Bitmask enum specifying what a texture override should apply to
-enum class OverrideTarget : u8
+enum class OverrideTarget : override_t
 {
 	INVALID = 0,
 	TOP = 1 << 0,
@@ -35,23 +37,33 @@ enum class OverrideTarget : u8
 	BACK = 1 << 5,
 	INVENTORY = 1 << 6,
 	WIELD = 1 << 7,
+	SPECIAL_1 = 1 << 8,
+	SPECIAL_2 = 1 << 9,
+	SPECIAL_3 = 1 << 10,
+	SPECIAL_4 = 1 << 11,
+	SPECIAL_5 = 1 << 12,
+	SPECIAL_6 = 1 << 13,
 
+	// clang-format off
 	SIDES = LEFT | RIGHT | FRONT | BACK,
 	ALL_FACES = TOP | BOTTOM | SIDES,
+	ALL_SPECIAL = SPECIAL_1 | SPECIAL_2 | SPECIAL_3 | SPECIAL_4 | SPECIAL_5 | SPECIAL_6,
+	NODE_TARGETS = ALL_FACES | ALL_SPECIAL,
 	ITEM_TARGETS = INVENTORY | WIELD,
+	// clang-format on
 };
 
 struct TextureOverride
 {
 	std::string id;
 	std::string texture;
-	u8 target;
+	override_t target;
 
 	// Helper function for checking if an OverrideTarget is found in
 	// a TextureOverride without casting
 	inline bool hasTarget(OverrideTarget overrideTarget) const
 	{
-		return (target & static_cast<u8>(overrideTarget)) != 0;
+		return (target & static_cast<override_t>(overrideTarget)) != 0;
 	}
 };
 
diff --git a/src/threading/thread.cpp b/src/threading/thread.cpp
index e0f808c4d..5cfc60995 100644
--- a/src/threading/thread.cpp
+++ b/src/threading/thread.cpp
@@ -33,6 +33,8 @@ DEALINGS IN THE SOFTWARE.
 	#include <sys/prctl.h>
 #elif defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__DragonFly__)
 	#include <pthread_np.h>
+#elif defined(__NetBSD__)
+	#include <sched.h>
 #elif defined(_MSC_VER)
 	struct THREADNAME_INFO {
 		DWORD dwType;     // Must be 0x1000
@@ -71,7 +73,28 @@ Thread::Thread(const std::string &name) :
 
 Thread::~Thread()
 {
-	kill();
+	// kill the thread if running
+	if (!m_running) {
+		wait();
+	} else {
+
+		m_running = false;
+
+#if defined(_WIN32)
+		// See https://msdn.microsoft.com/en-us/library/hh920601.aspx#thread__native_handle_method
+		TerminateThread((HANDLE) m_thread_obj->native_handle(), 0);
+		CloseHandle((HANDLE) m_thread_obj->native_handle());
+#else
+		// We need to pthread_kill instead on Android since NDKv5's pthread
+		// implementation is incomplete.
+# ifdef __ANDROID__
+		pthread_kill(getThreadHandle(), SIGKILL);
+# else
+		pthread_cancel(getThreadHandle());
+# endif
+		wait();
+#endif
+	}
 
 	// Make sure start finished mutex is unlocked before it's destroyed
 	if (m_start_finished_mutex.try_lock())
@@ -136,37 +159,6 @@ bool Thread::wait()
 }
 
 
-bool Thread::kill()
-{
-	if (!m_running) {
-		wait();
-		return false;
-	}
-
-	m_running = false;
-
-#if defined(_WIN32)
-	// See https://msdn.microsoft.com/en-us/library/hh920601.aspx#thread__native_handle_method
-	TerminateThread((HANDLE) m_thread_obj->native_handle(), 0);
-	CloseHandle((HANDLE) m_thread_obj->native_handle());
-#else
-	// We need to pthread_kill instead on Android since NDKv5's pthread
-	// implementation is incomplete.
-# ifdef __ANDROID__
-	pthread_kill(getThreadHandle(), SIGKILL);
-# else
-	pthread_cancel(getThreadHandle());
-# endif
-	wait();
-#endif
-
-	m_retval       = nullptr;
-	m_joinable     = false;
-	m_request_stop = false;
-
-	return true;
-}
-
 
 bool Thread::getReturnValue(void **ret)
 {
@@ -219,12 +211,16 @@ void Thread::setName(const std::string &name)
 
 #elif defined(__NetBSD__)
 
-	pthread_setname_np(pthread_self(), name.c_str());
+	pthread_setname_np(pthread_self(), "%s", const_cast<char*>(name.c_str()));
 
 #elif defined(__APPLE__)
 
 	pthread_setname_np(name.c_str());
 
+#elif defined(__HAIKU__)
+
+	rename_thread(find_thread(NULL), name.c_str());
+
 #elif defined(_MSC_VER)
 
 	// Windows itself doesn't support thread names,
@@ -281,7 +277,14 @@ bool Thread::bindToProcessor(unsigned int proc_number)
 	CPU_SET(proc_number, &cpuset);
 
 	return pthread_setaffinity_np(getThreadHandle(), sizeof(cpuset), &cpuset) == 0;
+#elif defined(__NetBSD__)
 
+	cpuset_t *cpuset = cpuset_create();
+	if (cpuset == NULL)
+		return false;
+	int r = pthread_setaffinity_np(getThreadHandle(), cpuset_size(cpuset), cpuset);
+	cpuset_destroy(cpuset);
+	return r == 0;
 #elif defined(__sun) || defined(sun)
 
 	return processor_bind(P_LWPID, P_MYID, proc_number, NULL) == 0
diff --git a/src/threading/thread.h b/src/threading/thread.h
index cea92226f..45fb171da 100644
--- a/src/threading/thread.h
+++ b/src/threading/thread.h
@@ -36,6 +36,10 @@ DEALINGS IN THE SOFTWARE.
 	#include <sys/thread.h> // for tid_t
 #endif
 
+#ifdef __HAIKU__
+	#include <kernel/OS.h>
+#endif
+
 /*
  * On platforms using pthreads, these five priority classes correlate to
  * even divisions between the minimum and maximum reported thread priority.
@@ -71,14 +75,6 @@ public:
 	bool stop();
 
 	/*
-	 * Immediately terminates the thread.
-	 * This should be used with extreme caution, as the thread will not have
-	 * any opportunity to release resources it may be holding (such as memory
-	 * or locks).
-	 */
-	bool kill();
-
-	/*
 	 * Waits for thread to finish.
 	 * Note:  This does not stop a thread, you have to do this on your own.
 	 * Returns false immediately if the thread is not started or has been waited
diff --git a/src/tool.cpp b/src/tool.cpp
index 22e41d28e..90f4f9c12 100644
--- a/src/tool.cpp
+++ b/src/tool.cpp
@@ -66,7 +66,7 @@ void ToolCapabilities::serialize(std::ostream &os, u16 protocol_version) const
 	for (const auto &groupcap : groupcaps) {
 		const std::string *name = &groupcap.first;
 		const ToolGroupCap *cap = &groupcap.second;
-		os << serializeString(*name);
+		os << serializeString16(*name);
 		writeS16(os, cap->uses);
 		writeS16(os, cap->maxlevel);
 		writeU32(os, cap->times.size());
@@ -79,7 +79,7 @@ void ToolCapabilities::serialize(std::ostream &os, u16 protocol_version) const
 	writeU32(os, damageGroups.size());
 
 	for (const auto &damageGroup : damageGroups) {
-		os << serializeString(damageGroup.first);
+		os << serializeString16(damageGroup.first);
 		writeS16(os, damageGroup.second);
 	}
 
@@ -98,7 +98,7 @@ void ToolCapabilities::deSerialize(std::istream &is)
 	groupcaps.clear();
 	u32 groupcaps_size = readU32(is);
 	for (u32 i = 0; i < groupcaps_size; i++) {
-		std::string name = deSerializeString(is);
+		std::string name = deSerializeString16(is);
 		ToolGroupCap cap;
 		cap.uses = readS16(is);
 		cap.maxlevel = readS16(is);
@@ -113,7 +113,7 @@ void ToolCapabilities::deSerialize(std::istream &is)
 
 	u32 damage_groups_size = readU32(is);
 	for (u32 i = 0; i < damage_groups_size; i++) {
-		std::string name = deSerializeString(is);
+		std::string name = deSerializeString16(is);
 		s16 rating = readS16(is);
 		damageGroups[name] = rating;
 	}
diff --git a/src/translation.cpp b/src/translation.cpp
index 8bbaee0a3..82e813a5d 100644
--- a/src/translation.cpp
+++ b/src/translation.cpp
@@ -29,14 +29,6 @@ Translations client_translations;
 Translations *g_client_translations = &client_translations;
 #endif
 
-// Per language server translations
-std::unordered_map<std::string,Translations> server_translations;
-std::unordered_map<std::string,Translations> *g_server_translations = &server_translations;
-
-Translations::~Translations()
-{
-	clear();
-}
 
 void Translations::clear()
 {
diff --git a/src/translation.h b/src/translation.h
index 71423b15e..f1a336fca 100644
--- a/src/translation.h
+++ b/src/translation.h
@@ -23,7 +23,6 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include <string>
 
 class Translations;
-extern std::unordered_map<std::string, Translations> *g_server_translations;
 #ifndef SERVER
 extern Translations *g_client_translations;
 #endif
@@ -31,10 +30,6 @@ extern Translations *g_client_translations;
 class Translations
 {
 public:
-	Translations() = default;
-
-	~Translations();
-
 	void loadTranslation(const std::string &data);
 	void clear();
 	const std::wstring &getTranslation(
diff --git a/src/unittest/test_map_settings_manager.cpp b/src/unittest/test_map_settings_manager.cpp
index 0a5c971b9..3d642a9b4 100644
--- a/src/unittest/test_map_settings_manager.cpp
+++ b/src/unittest/test_map_settings_manager.cpp
@@ -65,31 +65,6 @@ void check_noise_params(const NoiseParams *np1, const NoiseParams *np2)
 }
 
 
-std::string read_file_to_string(const std::string &filepath)
-{
-	std::string buf;
-	FILE *f = fopen(filepath.c_str(), "rb");
-	if (!f)
-		return "";
-
-	fseek(f, 0, SEEK_END);
-
-	long filesize = ftell(f);
-	if (filesize == -1) {
-		fclose(f);
-		return "";
-	}
-	rewind(f);
-
-	buf.resize(filesize);
-
-	UASSERTEQ(size_t, fread(&buf[0], 1, filesize, f), 1);
-
-	fclose(f);
-	return buf;
-}
-
-
 void TestMapSettingsManager::makeUserConfig(Settings *conf)
 {
 	conf->set("mg_name", "v7");
@@ -199,7 +174,8 @@ void TestMapSettingsManager::testMapSettingsManager()
 	};
 
 	SHA1 ctx;
-	std::string metafile_contents = read_file_to_string(test_mapmeta_path);
+	std::string metafile_contents;
+	UASSERT(fs::ReadFile(test_mapmeta_path, metafile_contents));
 	ctx.addBytes(&metafile_contents[0], metafile_contents.size());
 	unsigned char *sha1_result = ctx.getDigest();
 	int resultdiff = memcmp(sha1_result, expected_contents_hash, 20);
diff --git a/src/unittest/test_serialization.cpp b/src/unittest/test_serialization.cpp
index 51e28f144..660d77d02 100644
--- a/src/unittest/test_serialization.cpp
+++ b/src/unittest/test_serialization.cpp
@@ -32,25 +32,19 @@ public:
 	void buildTestStrings();
 
 	void testSerializeString();
-	void testSerializeWideString();
 	void testSerializeLongString();
 	void testSerializeJsonString();
-	void testSerializeHex();
 	void testDeSerializeString();
-	void testDeSerializeWideString();
 	void testDeSerializeLongString();
 	void testStreamRead();
 	void testStreamWrite();
-	void testVecPut();
-	void testStringLengthLimits();
-	void testBufReader();
 	void testFloatFormat();
 
 	std::string teststring2;
 	std::wstring teststring2_w;
 	std::string teststring2_w_encoded;
 
-	static const u8 test_serialized_data[12 * 13 - 8];
+	static const u8 test_serialized_data[12 * 11 - 2];
 };
 
 static TestSerialization g_test_instance;
@@ -61,17 +55,11 @@ void TestSerialization::runTests(IGameDef *gamedef)
 
 	TEST(testSerializeString);
 	TEST(testDeSerializeString);
-	TEST(testSerializeWideString);
-	TEST(testDeSerializeWideString);
 	TEST(testSerializeLongString);
 	TEST(testDeSerializeLongString);
 	TEST(testSerializeJsonString);
-	TEST(testSerializeHex);
 	TEST(testStreamRead);
 	TEST(testStreamWrite);
-	TEST(testVecPut);
-	TEST(testStringLengthLimits);
-	TEST(testBufReader);
 	TEST(testFloatFormat);
 }
 
@@ -103,21 +91,21 @@ void TestSerialization::buildTestStrings()
 void TestSerialization::testSerializeString()
 {
 	// Test blank string
-	UASSERT(serializeString("") == mkstr("\0\0"));
+	UASSERT(serializeString16("") == mkstr("\0\0"));
 
 	// Test basic string
-	UASSERT(serializeString("Hello world!") == mkstr("\0\14Hello world!"));
+	UASSERT(serializeString16("Hello world!") == mkstr("\0\14Hello world!"));
 
 	// Test character range
-	UASSERT(serializeString(teststring2) == mkstr("\1\0") + teststring2);
+	UASSERT(serializeString16(teststring2) == mkstr("\1\0") + teststring2);
 }
 
 void TestSerialization::testDeSerializeString()
 {
 	// Test deserialize
 	{
-		std::istringstream is(serializeString(teststring2), std::ios::binary);
-		UASSERT(deSerializeString(is) == teststring2);
+		std::istringstream is(serializeString16(teststring2), std::ios::binary);
+		UASSERT(deSerializeString16(is) == teststring2);
 		UASSERT(!is.eof());
 		is.get();
 		UASSERT(is.eof());
@@ -126,78 +114,34 @@ void TestSerialization::testDeSerializeString()
 	// Test deserialize an incomplete length specifier
 	{
 		std::istringstream is(mkstr("\x53"), std::ios::binary);
-		EXCEPTION_CHECK(SerializationError, deSerializeString(is));
+		EXCEPTION_CHECK(SerializationError, deSerializeString16(is));
 	}
 
 	// Test deserialize a string with incomplete data
 	{
 		std::istringstream is(mkstr("\x00\x55 abcdefg"), std::ios::binary);
-		EXCEPTION_CHECK(SerializationError, deSerializeString(is));
-	}
-}
-
-void TestSerialization::testSerializeWideString()
-{
-	// Test blank string
-	UASSERT(serializeWideString(L"") == mkstr("\0\0"));
-
-	// Test basic string
-	UASSERT(serializeWideString(utf8_to_wide("Hello world!")) ==
-		mkstr("\0\14\0H\0e\0l\0l\0o\0 \0w\0o\0r\0l\0d\0!"));
-
-	// Test character range
-	UASSERT(serializeWideString(teststring2_w) ==
-		mkstr("\1\0") + teststring2_w_encoded);
-}
-
-void TestSerialization::testDeSerializeWideString()
-{
-	// Test deserialize
-	{
-		std::istringstream is(serializeWideString(teststring2_w), std::ios::binary);
-		UASSERT(deSerializeWideString(is) == teststring2_w);
-		UASSERT(!is.eof());
-		is.get();
-		UASSERT(is.eof());
-	}
-
-	// Test deserialize an incomplete length specifier
-	{
-		std::istringstream is(mkstr("\x53"), std::ios::binary);
-		EXCEPTION_CHECK(SerializationError, deSerializeWideString(is));
-	}
-
-	// Test deserialize a string with an incomplete character
-	{
-		std::istringstream is(mkstr("\x00\x07\0a\0b\0c\0d\0e\0f\0"), std::ios::binary);
-		EXCEPTION_CHECK(SerializationError, deSerializeWideString(is));
-	}
-
-	// Test deserialize a string with incomplete data
-	{
-		std::istringstream is(mkstr("\x00\x08\0a\0b\0c\0d\0e\0f"), std::ios::binary);
-		EXCEPTION_CHECK(SerializationError, deSerializeWideString(is));
+		EXCEPTION_CHECK(SerializationError, deSerializeString16(is));
 	}
 }
 
 void TestSerialization::testSerializeLongString()
 {
 	// Test blank string
-	UASSERT(serializeLongString("") == mkstr("\0\0\0\0"));
+	UASSERT(serializeString32("") == mkstr("\0\0\0\0"));
 
 	// Test basic string
-	UASSERT(serializeLongString("Hello world!") == mkstr("\0\0\0\14Hello world!"));
+	UASSERT(serializeString32("Hello world!") == mkstr("\0\0\0\14Hello world!"));
 
 	// Test character range
-	UASSERT(serializeLongString(teststring2) == mkstr("\0\0\1\0") + teststring2);
+	UASSERT(serializeString32(teststring2) == mkstr("\0\0\1\0") + teststring2);
 }
 
 void TestSerialization::testDeSerializeLongString()
 {
 	// Test deserialize
 	{
-		std::istringstream is(serializeLongString(teststring2), std::ios::binary);
-		UASSERT(deSerializeLongString(is) == teststring2);
+		std::istringstream is(serializeString32(teststring2), std::ios::binary);
+		UASSERT(deSerializeString32(is) == teststring2);
 		UASSERT(!is.eof());
 		is.get();
 		UASSERT(is.eof());
@@ -206,19 +150,19 @@ void TestSerialization::testDeSerializeLongString()
 	// Test deserialize an incomplete length specifier
 	{
 		std::istringstream is(mkstr("\x53"), std::ios::binary);
-		EXCEPTION_CHECK(SerializationError, deSerializeLongString(is));
+		EXCEPTION_CHECK(SerializationError, deSerializeString32(is));
 	}
 
 	// Test deserialize a string with incomplete data
 	{
 		std::istringstream is(mkstr("\x00\x00\x00\x05 abc"), std::ios::binary);
-		EXCEPTION_CHECK(SerializationError, deSerializeLongString(is));
+		EXCEPTION_CHECK(SerializationError, deSerializeString32(is));
 	}
 
 	// Test deserialize a string with a length too large
 	{
 		std::istringstream is(mkstr("\xFF\xFF\xFF\xFF blah"), std::ios::binary);
-		EXCEPTION_CHECK(SerializationError, deSerializeLongString(is));
+		EXCEPTION_CHECK(SerializationError, deSerializeString32(is));
 	}
 }
 
@@ -268,25 +212,6 @@ void TestSerialization::testSerializeJsonString()
 	UASSERT(is.eof());
 }
 
-void TestSerialization::testSerializeHex()
-{
-	// Test blank string
-	UASSERT(serializeHexString("") == "");
-	UASSERT(serializeHexString("", true) == "");
-
-	// Test basic string
-	UASSERT(serializeHexString("Hello world!") ==
-		"48656c6c6f20776f726c6421");
-	UASSERT(serializeHexString("Hello world!", true) ==
-		"48 65 6c 6c 6f 20 77 6f 72 6c 64 21");
-
-	// Test binary string
-	UASSERT(serializeHexString(mkstr("\x00\x0a\xb0\x63\x1f\x00\xff")) ==
-		"000ab0631f00ff");
-	UASSERT(serializeHexString(mkstr("\x00\x0a\xb0\x63\x1f\x00\xff"), true) ==
-		"00 0a b0 63 1f 00 ff");
-}
-
 
 void TestSerialization::testStreamRead()
 {
@@ -310,19 +235,17 @@ void TestSerialization::testStreamRead()
 	UASSERT(readF1000(is) == F1000_MIN);
 	UASSERT(readF1000(is) == F1000_MAX);
 
-	UASSERT(deSerializeString(is) == "foobar!");
+	UASSERT(deSerializeString16(is) == "foobar!");
 
 	UASSERT(readV2S16(is) == v2s16(500, 500));
 	UASSERT(readV3S16(is) == v3s16(4207, 604, -30));
 	UASSERT(readV2S32(is) == v2s32(1920, 1080));
 	UASSERT(readV3S32(is) == v3s32(-400, 6400054, 290549855));
 
-	UASSERT(deSerializeWideString(is) == L"\x02~woof~\x5455");
-
 	UASSERT(readV3F1000(is) == v3f(500, 10024.2f, -192.54f));
 	UASSERT(readARGB8(is) == video::SColor(255, 128, 50, 128));
 
-	UASSERT(deSerializeLongString(is) == "some longer string here");
+	UASSERT(deSerializeString32(is) == "some longer string here");
 
 	UASSERT(is.rdbuf()->in_avail() == 2);
 	UASSERT(readU16(is) == 0xF00D);
@@ -350,7 +273,7 @@ void TestSerialization::testStreamWrite()
 	writeF1000(os, F1000_MIN);
 	writeF1000(os, F1000_MAX);
 
-	os << serializeString("foobar!");
+	os << serializeString16("foobar!");
 
 	data = os.str();
 	UASSERT(data.size() < sizeof(test_serialized_data));
@@ -361,12 +284,10 @@ void TestSerialization::testStreamWrite()
 	writeV2S32(os, v2s32(1920, 1080));
 	writeV3S32(os, v3s32(-400, 6400054, 290549855));
 
-	os << serializeWideString(L"\x02~woof~\x5455");
-
 	writeV3F1000(os, v3f(500, 10024.2f, -192.54f));
 	writeARGB8(os, video::SColor(255, 128, 50, 128));
 
-	os << serializeLongString("some longer string here");
+	os << serializeString32("some longer string here");
 
 	writeU16(os, 0xF00D);
 
@@ -376,255 +297,6 @@ void TestSerialization::testStreamWrite()
 }
 
 
-void TestSerialization::testVecPut()
-{
-	std::vector<u8> buf;
-
-	putU8(&buf, 0x11);
-	putU16(&buf, 0x2233);
-	putU32(&buf, 0x44556677);
-	putU64(&buf, 0x8899AABBCCDDEEFFLL);
-
-	putS8(&buf, -128);
-	putS16(&buf, 30000);
-	putS32(&buf, -6);
-	putS64(&buf, -43);
-
-	putF1000(&buf, 53.53467f);
-	putF1000(&buf, -300000.32f);
-	putF1000(&buf, F1000_MIN);
-	putF1000(&buf, F1000_MAX);
-
-	putString(&buf, "foobar!");
-
-	putV2S16(&buf, v2s16(500, 500));
-	putV3S16(&buf, v3s16(4207, 604, -30));
-	putV2S32(&buf, v2s32(1920, 1080));
-	putV3S32(&buf, v3s32(-400, 6400054, 290549855));
-
-	putWideString(&buf, L"\x02~woof~\x5455");
-
-	putV3F1000(&buf, v3f(500, 10024.2f, -192.54f));
-	putARGB8(&buf, video::SColor(255, 128, 50, 128));
-
-	putLongString(&buf, "some longer string here");
-
-	putU16(&buf, 0xF00D);
-
-	UASSERT(buf.size() == sizeof(test_serialized_data));
-	UASSERT(!memcmp(&buf[0], test_serialized_data, sizeof(test_serialized_data)));
-}
-
-
-void TestSerialization::testStringLengthLimits()
-{
-	std::vector<u8> buf;
-	std::string too_long(STRING_MAX_LEN + 1, 'A');
-	std::string way_too_large(LONG_STRING_MAX_LEN + 1, 'B');
-	std::wstring too_long_wide(WIDE_STRING_MAX_LEN + 1, L'C');
-
-	EXCEPTION_CHECK(SerializationError, putString(&buf, too_long));
-
-	putLongString(&buf, too_long);
-	too_long.resize(too_long.size() - 1);
-	putString(&buf, too_long);
-
-	EXCEPTION_CHECK(SerializationError, putWideString(&buf, too_long_wide));
-	too_long_wide.resize(too_long_wide.size() - 1);
-	putWideString(&buf, too_long_wide);
-}
-
-
-void TestSerialization::testBufReader()
-{
-	u8 u8_data;
-	u16 u16_data;
-	u32 u32_data;
-	u64 u64_data;
-	s8 s8_data;
-	s16 s16_data;
-	s32 s32_data;
-	s64 s64_data;
-	f32 f32_data, f32_data2, f32_data3, f32_data4;
-	video::SColor scolor_data;
-	v2s16 v2s16_data;
-	v3s16 v3s16_data;
-	v2s32 v2s32_data;
-	v3s32 v3s32_data;
-	v3f v3f_data;
-	std::string string_data;
-	std::wstring widestring_data;
-	std::string longstring_data;
-	u8 raw_data[10] = {0};
-
-	BufReader buf(test_serialized_data, sizeof(test_serialized_data));
-
-	// Try reading data like normal
-	UASSERT(buf.getU8() == 0x11);
-	UASSERT(buf.getU16() == 0x2233);
-	UASSERT(buf.getU32() == 0x44556677);
-	UASSERT(buf.getU64() == 0x8899AABBCCDDEEFFLL);
-	UASSERT(buf.getS8() == -128);
-	UASSERT(buf.getS16() == 30000);
-	UASSERT(buf.getS32() == -6);
-	UASSERT(buf.getS64() == -43);
-	UASSERT(buf.getF1000() == 53.534f);
-	UASSERT(buf.getF1000() == -300000.32f);
-	UASSERT(buf.getF1000() == F1000_MIN);
-	UASSERT(buf.getF1000() == F1000_MAX);
-	UASSERT(buf.getString() == "foobar!");
-	UASSERT(buf.getV2S16() == v2s16(500, 500));
-	UASSERT(buf.getV3S16() == v3s16(4207, 604, -30));
-	UASSERT(buf.getV2S32() == v2s32(1920, 1080));
-	UASSERT(buf.getV3S32() == v3s32(-400, 6400054, 290549855));
-	UASSERT(buf.getWideString() == L"\x02~woof~\x5455");
-	UASSERT(buf.getV3F1000() == v3f(500, 10024.2f, -192.54f));
-	UASSERT(buf.getARGB8() == video::SColor(255, 128, 50, 128));
-	UASSERT(buf.getLongString() == "some longer string here");
-
-	// Verify the offset and data is unchanged after a failed read
-	size_t orig_pos = buf.pos;
-	u32_data = 0;
-	UASSERT(buf.getU32NoEx(&u32_data) == false);
-	UASSERT(buf.pos == orig_pos);
-	UASSERT(u32_data == 0);
-
-	// Now try the same for a failed string read
-	UASSERT(buf.getStringNoEx(&string_data) == false);
-	UASSERT(buf.pos == orig_pos);
-	UASSERT(string_data == "");
-
-	// Now try the same for a failed string read
-	UASSERT(buf.getWideStringNoEx(&widestring_data) == false);
-	UASSERT(buf.pos == orig_pos);
-	UASSERT(widestring_data == L"");
-
-	UASSERT(buf.getU16() == 0xF00D);
-
-	UASSERT(buf.remaining() == 0);
-
-	// Check to make sure these each blow exceptions as they're supposed to
-	EXCEPTION_CHECK(SerializationError, buf.getU8());
-	EXCEPTION_CHECK(SerializationError, buf.getU16());
-	EXCEPTION_CHECK(SerializationError, buf.getU32());
-	EXCEPTION_CHECK(SerializationError, buf.getU64());
-
-	EXCEPTION_CHECK(SerializationError, buf.getS8());
-	EXCEPTION_CHECK(SerializationError, buf.getS16());
-	EXCEPTION_CHECK(SerializationError, buf.getS32());
-	EXCEPTION_CHECK(SerializationError, buf.getS64());
-
-	EXCEPTION_CHECK(SerializationError, buf.getF1000());
-	EXCEPTION_CHECK(SerializationError, buf.getARGB8());
-
-	EXCEPTION_CHECK(SerializationError, buf.getV2S16());
-	EXCEPTION_CHECK(SerializationError, buf.getV3S16());
-	EXCEPTION_CHECK(SerializationError, buf.getV2S32());
-	EXCEPTION_CHECK(SerializationError, buf.getV3S32());
-	EXCEPTION_CHECK(SerializationError, buf.getV3F1000());
-
-	EXCEPTION_CHECK(SerializationError, buf.getString());
-	EXCEPTION_CHECK(SerializationError, buf.getWideString());
-	EXCEPTION_CHECK(SerializationError, buf.getLongString());
-	EXCEPTION_CHECK(SerializationError,
-		buf.getRawData(raw_data, sizeof(raw_data)));
-
-	// See if we can skip backwards
-	buf.pos = 5;
-	UASSERT(buf.getRawDataNoEx(raw_data, 3) == true);
-	UASSERT(raw_data[0] == 0x66);
-	UASSERT(raw_data[1] == 0x77);
-	UASSERT(raw_data[2] == 0x88);
-
-	UASSERT(buf.getU32() == 0x99AABBCC);
-	UASSERT(buf.pos == 12);
-
-	// Now let's try it all over again using the NoEx variants
-	buf.pos = 0;
-
-	UASSERT(buf.getU8NoEx(&u8_data));
-	UASSERT(buf.getU16NoEx(&u16_data));
-	UASSERT(buf.getU32NoEx(&u32_data));
-	UASSERT(buf.getU64NoEx(&u64_data));
-
-	UASSERT(buf.getS8NoEx(&s8_data));
-	UASSERT(buf.getS16NoEx(&s16_data));
-	UASSERT(buf.getS32NoEx(&s32_data));
-	UASSERT(buf.getS64NoEx(&s64_data));
-
-	UASSERT(buf.getF1000NoEx(&f32_data));
-	UASSERT(buf.getF1000NoEx(&f32_data2));
-	UASSERT(buf.getF1000NoEx(&f32_data3));
-	UASSERT(buf.getF1000NoEx(&f32_data4));
-
-	UASSERT(buf.getStringNoEx(&string_data));
-	UASSERT(buf.getV2S16NoEx(&v2s16_data));
-	UASSERT(buf.getV3S16NoEx(&v3s16_data));
-	UASSERT(buf.getV2S32NoEx(&v2s32_data));
-	UASSERT(buf.getV3S32NoEx(&v3s32_data));
-	UASSERT(buf.getWideStringNoEx(&widestring_data));
-	UASSERT(buf.getV3F1000NoEx(&v3f_data));
-	UASSERT(buf.getARGB8NoEx(&scolor_data));
-
-	UASSERT(buf.getLongStringNoEx(&longstring_data));
-
-	// and make sure we got the correct data
-	UASSERT(u8_data == 0x11);
-	UASSERT(u16_data == 0x2233);
-	UASSERT(u32_data == 0x44556677);
-	UASSERT(u64_data == 0x8899AABBCCDDEEFFLL);
-	UASSERT(s8_data == -128);
-	UASSERT(s16_data == 30000);
-	UASSERT(s32_data == -6);
-	UASSERT(s64_data == -43);
-	UASSERT(f32_data == 53.534f);
-	UASSERT(f32_data2 == -300000.32f);
-	UASSERT(f32_data3 == F1000_MIN);
-	UASSERT(f32_data4 == F1000_MAX);
-	UASSERT(string_data == "foobar!");
-	UASSERT(v2s16_data == v2s16(500, 500));
-	UASSERT(v3s16_data == v3s16(4207, 604, -30));
-	UASSERT(v2s32_data == v2s32(1920, 1080));
-	UASSERT(v3s32_data == v3s32(-400, 6400054, 290549855));
-	UASSERT(widestring_data == L"\x02~woof~\x5455");
-	UASSERT(v3f_data == v3f(500, 10024.2f, -192.54f));
-	UASSERT(scolor_data == video::SColor(255, 128, 50, 128));
-	UASSERT(longstring_data == "some longer string here");
-
-	UASSERT(buf.remaining() == 2);
-	UASSERT(buf.getRawDataNoEx(raw_data, 3) == false);
-	UASSERT(buf.remaining() == 2);
-	UASSERT(buf.getRawDataNoEx(raw_data, 2) == true);
-	UASSERT(raw_data[0] == 0xF0);
-	UASSERT(raw_data[1] == 0x0D);
-	UASSERT(buf.remaining() == 0);
-
-	// Make sure no more available data causes a failure
-	UASSERT(!buf.getU8NoEx(&u8_data));
-	UASSERT(!buf.getU16NoEx(&u16_data));
-	UASSERT(!buf.getU32NoEx(&u32_data));
-	UASSERT(!buf.getU64NoEx(&u64_data));
-
-	UASSERT(!buf.getS8NoEx(&s8_data));
-	UASSERT(!buf.getS16NoEx(&s16_data));
-	UASSERT(!buf.getS32NoEx(&s32_data));
-	UASSERT(!buf.getS64NoEx(&s64_data));
-
-	UASSERT(!buf.getF1000NoEx(&f32_data));
-	UASSERT(!buf.getARGB8NoEx(&scolor_data));
-
-	UASSERT(!buf.getV2S16NoEx(&v2s16_data));
-	UASSERT(!buf.getV3S16NoEx(&v3s16_data));
-	UASSERT(!buf.getV2S32NoEx(&v2s32_data));
-	UASSERT(!buf.getV3S32NoEx(&v3s32_data));
-	UASSERT(!buf.getV3F1000NoEx(&v3f_data));
-
-	UASSERT(!buf.getStringNoEx(&string_data));
-	UASSERT(!buf.getWideStringNoEx(&widestring_data));
-	UASSERT(!buf.getLongStringNoEx(&longstring_data));
-	UASSERT(!buf.getRawDataNoEx(raw_data, sizeof(raw_data)));
-}
-
 void TestSerialization::testFloatFormat()
 {
 	FloatType type = getFloatSerializationType();
@@ -708,7 +380,7 @@ void TestSerialization::testFloatFormat()
 		UASSERT(test_single(i));
 }
 
-const u8 TestSerialization::test_serialized_data[12 * 13 - 8] = {
+const u8 TestSerialization::test_serialized_data[12 * 11 - 2] = {
 	0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, 0x88, 0x99, 0xaa, 0xbb, 0xcc,
 	0xdd, 0xee, 0xff, 0x80, 0x75, 0x30, 0xff, 0xff, 0xff, 0xfa, 0xff, 0xff,
 	0xff, 0xff, 0xff, 0xff, 0xff, 0xd5, 0x00, 0x00, 0xd1, 0x1e, 0xee, 0x1e,
@@ -716,9 +388,7 @@ const u8 TestSerialization::test_serialized_data[12 * 13 - 8] = {
 	0x66, 0x6f, 0x6f, 0x62, 0x61, 0x72, 0x21, 0x01, 0xf4, 0x01, 0xf4, 0x10,
 	0x6f, 0x02, 0x5c, 0xff, 0xe2, 0x00, 0x00, 0x07, 0x80, 0x00, 0x00, 0x04,
 	0x38, 0xff, 0xff, 0xfe, 0x70, 0x00, 0x61, 0xa8, 0x36, 0x11, 0x51, 0x70,
-	0x5f, 0x00, 0x08, 0x00,
-	0x02, 0x00, 0x7e, 0x00,  'w', 0x00,  'o', 0x00,  'o', 0x00,  'f', 0x00, // \x02~woof~\x5455
-	0x7e, 0x54, 0x55, 0x00, 0x07, 0xa1, 0x20, 0x00, 0x98, 0xf5, 0x08, 0xff,
+	0x5f, 0x00, 0x07, 0xa1, 0x20, 0x00, 0x98, 0xf5, 0x08, 0xff,
 	0xfd, 0x0f, 0xe4, 0xff, 0x80, 0x32, 0x80, 0x00, 0x00, 0x00, 0x17, 0x73,
 	0x6f, 0x6d, 0x65, 0x20, 0x6c, 0x6f, 0x6e, 0x67, 0x65, 0x72, 0x20, 0x73,
 	0x74, 0x72, 0x69, 0x6e, 0x67, 0x20, 0x68, 0x65, 0x72, 0x65, 0xF0, 0x0D,
diff --git a/src/unittest/test_servermodmanager.cpp b/src/unittest/test_servermodmanager.cpp
index 799936757..e3edb0c32 100644
--- a/src/unittest/test_servermodmanager.cpp
+++ b/src/unittest/test_servermodmanager.cpp
@@ -169,6 +169,4 @@ void TestServerModManager::testGetModMediaPaths()
 	std::vector<std::string> result;
 	sm.getModsMediaPaths(result);
 	UASSERTEQ(bool, result.empty(), false);
-	// We should have 5 folders for each mod (textures, media, locale, model, sounds)
-	UASSERTEQ(unsigned long, result.size() % 5, 0);
 }
diff --git a/src/unittest/test_settings.cpp b/src/unittest/test_settings.cpp
index aa56f3e06..f91ba5b67 100644
--- a/src/unittest/test_settings.cpp
+++ b/src/unittest/test_settings.cpp
@@ -149,15 +149,15 @@ void TestSettings::testAllSettings()
 	UASSERT(group->getS16("a") == 5);
 	UASSERT(fabs(group->getFloat("bb") - 2.5) < 0.001);
 
-	Settings *group3 = new Settings;
-	group3->set("cat", "meow");
-	group3->set("dog", "woof");
-
-	Settings *group2 = new Settings;
-	group2->setS16("num_apples", 4);
-	group2->setS16("num_oranges", 53);
-	group2->setGroup("animals", group3);
-	group2->set("animals", "cute"); //destroys group 3
+	Settings group3;
+	group3.set("cat", "meow");
+	group3.set("dog", "woof");
+
+	Settings group2;
+	group2.setS16("num_apples", 4);
+	group2.setS16("num_oranges", 53);
+	group2.setGroup("animals", group3);
+	group2.set("animals", "cute"); //destroys group 3
 	s.setGroup("groupy_thing", group2);
 
 	// Test set failure conditions
diff --git a/src/unittest/test_threading.cpp b/src/unittest/test_threading.cpp
index 8d4d814fd..65ef7c02d 100644
--- a/src/unittest/test_threading.cpp
+++ b/src/unittest/test_threading.cpp
@@ -31,7 +31,6 @@ public:
 	void runTests(IGameDef *gamedef);
 
 	void testStartStopWait();
-	void testThreadKill();
 	void testAtomicSemaphoreThread();
 };
 
@@ -40,7 +39,6 @@ static TestThreading g_test_instance;
 void TestThreading::runTests(IGameDef *gamedef)
 {
 	TEST(testStartStopWait);
-	TEST(testThreadKill);
 	TEST(testAtomicSemaphoreThread);
 }
 
@@ -111,29 +109,6 @@ void TestThreading::testStartStopWait()
 }
 
 
-void TestThreading::testThreadKill()
-{
-	SimpleTestThread *thread = new SimpleTestThread(300);
-
-	UASSERT(thread->start() == true);
-
-	// kill()ing is quite violent, so let's make sure our victim is sleeping
-	// before we do this... so we don't corrupt the rest of the program's state
-	sleep_ms(100);
-	UASSERT(thread->kill() == true);
-
-	// The state of the thread object should be reset if all went well
-	UASSERT(thread->isRunning() == false);
-	UASSERT(thread->start() == true);
-	UASSERT(thread->stop() == true);
-	UASSERT(thread->wait() == true);
-
-	// kill() after already waiting should fail.
-	UASSERT(thread->kill() == false);
-
-	delete thread;
-}
-
 
 class AtomicTestThread : public Thread {
 public:
diff --git a/src/util/base64.cpp b/src/util/base64.cpp
index c75f98598..6e1584410 100644
--- a/src/util/base64.cpp
+++ b/src/util/base64.cpp
@@ -34,8 +34,9 @@ static const std::string base64_chars =
 		"0123456789+/";
 
 
-static inline bool is_base64(unsigned char c) {
-	return (isalnum(c) || (c == '+') || (c == '/'));
+static inline bool is_base64(unsigned char c)
+{
+	return isalnum(c) || c == '+' || c == '/' || c == '=';
 }
 
 bool base64_is_valid(std::string const& s)
diff --git a/src/util/md32_common.h b/src/util/md32_common.h
index a4c2099c9..2c050b72a 100644
--- a/src/util/md32_common.h
+++ b/src/util/md32_common.h
@@ -301,7 +301,7 @@
 
 int HASH_UPDATE(HASH_CTX *c, const void *data_, size_t len)
 {
-    const unsigned char *data = data_;
+    const unsigned char *data = (const unsigned char *)data_;
     unsigned char *p;
     HASH_LONG l;
     size_t n;
diff --git a/src/util/serialize.cpp b/src/util/serialize.cpp
index 5b276668d..d770101f2 100644
--- a/src/util/serialize.cpp
+++ b/src/util/serialize.cpp
@@ -30,86 +30,18 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 
 FloatType g_serialize_f32_type = FLOATTYPE_UNKNOWN;
 
-////
-//// BufReader
-////
-
-bool BufReader::getStringNoEx(std::string *val)
-{
-	u16 num_chars;
-	if (!getU16NoEx(&num_chars))
-		return false;
-
-	if (pos + num_chars > size) {
-		pos -= sizeof(num_chars);
-		return false;
-	}
-
-	val->assign((const char *)data + pos, num_chars);
-	pos += num_chars;
-
-	return true;
-}
-
-bool BufReader::getWideStringNoEx(std::wstring *val)
-{
-	u16 num_chars;
-	if (!getU16NoEx(&num_chars))
-		return false;
-
-	if (pos + num_chars * 2 > size) {
-		pos -= sizeof(num_chars);
-		return false;
-	}
-
-	for (size_t i = 0; i != num_chars; i++) {
-		val->push_back(readU16(data + pos));
-		pos += 2;
-	}
-
-	return true;
-}
-
-bool BufReader::getLongStringNoEx(std::string *val)
-{
-	u32 num_chars;
-	if (!getU32NoEx(&num_chars))
-		return false;
-
-	if (pos + num_chars > size) {
-		pos -= sizeof(num_chars);
-		return false;
-	}
-
-	val->assign((const char *)data + pos, num_chars);
-	pos += num_chars;
-
-	return true;
-}
-
-bool BufReader::getRawDataNoEx(void *val, size_t len)
-{
-	if (pos + len > size)
-		return false;
-
-	memcpy(val, data + pos, len);
-	pos += len;
-
-	return true;
-}
-
 
 ////
 //// String
 ////
 
-std::string serializeString(const std::string &plain)
+std::string serializeString16(const std::string &plain)
 {
 	std::string s;
 	char buf[2];
 
 	if (plain.size() > STRING_MAX_LEN)
-		throw SerializationError("String too long for serializeString");
+		throw SerializationError("String too long for serializeString16");
 	s.reserve(2 + plain.size());
 
 	writeU16((u8 *)&buf[0], plain.size());
@@ -119,14 +51,14 @@ std::string serializeString(const std::string &plain)
 	return s;
 }
 
-std::string deSerializeString(std::istream &is)
+std::string deSerializeString16(std::istream &is)
 {
 	std::string s;
 	char buf[2];
 
 	is.read(buf, 2);
 	if (is.gcount() != 2)
-		throw SerializationError("deSerializeString: size not read");
+		throw SerializationError("deSerializeString16: size not read");
 
 	u16 s_size = readU16((u8 *)buf);
 	if (s_size == 0)
@@ -135,66 +67,17 @@ std::string deSerializeString(std::istream &is)
 	s.resize(s_size);
 	is.read(&s[0], s_size);
 	if (is.gcount() != s_size)
-		throw SerializationError("deSerializeString: couldn't read all chars");
+		throw SerializationError("deSerializeString16: couldn't read all chars");
 
 	return s;
 }
 
-////
-//// Wide String
-////
-
-std::string serializeWideString(const std::wstring &plain)
-{
-	std::string s;
-	char buf[2];
-
-	if (plain.size() > WIDE_STRING_MAX_LEN)
-		throw SerializationError("String too long for serializeWideString");
-	s.reserve(2 + 2 * plain.size());
-
-	writeU16((u8 *)buf, plain.size());
-	s.append(buf, 2);
-
-	for (wchar_t i : plain) {
-		writeU16((u8 *)buf, i);
-		s.append(buf, 2);
-	}
-	return s;
-}
-
-std::wstring deSerializeWideString(std::istream &is)
-{
-	std::wstring s;
-	char buf[2];
-
-	is.read(buf, 2);
-	if (is.gcount() != 2)
-		throw SerializationError("deSerializeWideString: size not read");
-
-	u16 s_size = readU16((u8 *)buf);
-	if (s_size == 0)
-		return s;
-
-	s.reserve(s_size);
-	for (u32 i = 0; i < s_size; i++) {
-		is.read(&buf[0], 2);
-		if (is.gcount() != 2) {
-			throw SerializationError(
-				"deSerializeWideString: couldn't read all chars");
-		}
-
-		wchar_t c16 = readU16((u8 *)buf);
-		s.append(&c16, 1);
-	}
-	return s;
-}
 
 ////
 //// Long String
 ////
 
-std::string serializeLongString(const std::string &plain)
+std::string serializeString32(const std::string &plain)
 {
 	std::string s;
 	char buf[4];
@@ -209,7 +92,7 @@ std::string serializeLongString(const std::string &plain)
 	return s;
 }
 
-std::string deSerializeLongString(std::istream &is)
+std::string deSerializeString32(std::istream &is)
 {
 	std::string s;
 	char buf[4];
@@ -404,284 +287,3 @@ std::string deSerializeJsonStringIfNeeded(std::istream &is)
 	return tmp_os.str();
 }
 
-////
-//// String/Struct conversions
-////
-
-bool deSerializeStringToStruct(std::string valstr,
-	std::string format, void *out, size_t olen)
-{
-	size_t len = olen;
-	std::vector<std::string *> strs_alloced;
-	std::string *str;
-	char *f, *snext;
-	size_t pos;
-
-	char *s = &valstr[0];
-	char *buf = new char[len];
-	char *bufpos = buf;
-
-	char *fmtpos, *fmt = &format[0];
-	while ((f = strtok_r(fmt, ",", &fmtpos)) && s) {
-		fmt = nullptr;
-
-		bool is_unsigned = false;
-		int width = 0;
-		char valtype = *f;
-
-		width = (int)strtol(f + 1, &f, 10);
-		if (width && valtype == 's')
-			valtype = 'i';
-
-		switch (valtype) {
-			case 'u':
-				is_unsigned = true;
-				/* FALLTHROUGH */
-			case 'i':
-				if (width == 16) {
-					bufpos += PADDING(bufpos, u16);
-					if ((bufpos - buf) + sizeof(u16) <= len) {
-						if (is_unsigned)
-							*(u16 *)bufpos = (u16)strtoul(s, &s, 10);
-						else
-							*(s16 *)bufpos = (s16)strtol(s, &s, 10);
-					}
-					bufpos += sizeof(u16);
-				} else if (width == 32) {
-					bufpos += PADDING(bufpos, u32);
-					if ((bufpos - buf) + sizeof(u32) <= len) {
-						if (is_unsigned)
-							*(u32 *)bufpos = (u32)strtoul(s, &s, 10);
-						else
-							*(s32 *)bufpos = (s32)strtol(s, &s, 10);
-					}
-					bufpos += sizeof(u32);
-				} else if (width == 64) {
-					bufpos += PADDING(bufpos, u64);
-					if ((bufpos - buf) + sizeof(u64) <= len) {
-						if (is_unsigned)
-							*(u64 *)bufpos = (u64)strtoull(s, &s, 10);
-						else
-							*(s64 *)bufpos = (s64)strtoll(s, &s, 10);
-					}
-					bufpos += sizeof(u64);
-				}
-				s = strchr(s, ',');
-				break;
-			case 'b':
-				snext = strchr(s, ',');
-				if (snext)
-					*snext++ = 0;
-
-				bufpos += PADDING(bufpos, bool);
-				if ((bufpos - buf) + sizeof(bool) <= len)
-					*(bool *)bufpos = is_yes(std::string(s));
-				bufpos += sizeof(bool);
-
-				s = snext;
-				break;
-			case 'f':
-				bufpos += PADDING(bufpos, float);
-				if ((bufpos - buf) + sizeof(float) <= len)
-					*(float *)bufpos = strtof(s, &s);
-				bufpos += sizeof(float);
-
-				s = strchr(s, ',');
-				break;
-			case 's':
-				while (*s == ' ' || *s == '\t')
-					s++;
-				if (*s++ != '"') //error, expected string
-					goto fail;
-				snext = s;
-
-				while (snext[0] && !(snext[-1] != '\\' && snext[0] == '"'))
-					snext++;
-				*snext++ = 0;
-
-				bufpos += PADDING(bufpos, std::string *);
-
-				str = new std::string(s);
-				pos = 0;
-				while ((pos = str->find("\\\"", pos)) != std::string::npos)
-					str->erase(pos, 1);
-
-				if ((bufpos - buf) + sizeof(std::string *) <= len)
-					*(std::string **)bufpos = str;
-				bufpos += sizeof(std::string *);
-				strs_alloced.push_back(str);
-
-				s = *snext ? snext + 1 : nullptr;
-				break;
-			case 'v':
-				while (*s == ' ' || *s == '\t')
-					s++;
-				if (*s++ != '(') //error, expected vector
-					goto fail;
-
-				if (width == 2) {
-					bufpos += PADDING(bufpos, v2f);
-
-					if ((bufpos - buf) + sizeof(v2f) <= len) {
-					v2f *v = (v2f *)bufpos;
-						v->X = strtof(s, &s);
-						s++;
-						v->Y = strtof(s, &s);
-					}
-
-					bufpos += sizeof(v2f);
-				} else if (width == 3) {
-					bufpos += PADDING(bufpos, v3f);
-					if ((bufpos - buf) + sizeof(v3f) <= len) {
-						v3f *v = (v3f *)bufpos;
-						v->X = strtof(s, &s);
-						s++;
-						v->Y = strtof(s, &s);
-						s++;
-						v->Z = strtof(s, &s);
-					}
-
-					bufpos += sizeof(v3f);
-				}
-				s = strchr(s, ',');
-				break;
-			default: //error, invalid format specifier
-				goto fail;
-		}
-
-		if (s && *s == ',')
-			s++;
-
-		if ((size_t)(bufpos - buf) > len) //error, buffer too small
-			goto fail;
-	}
-
-	if (f && *f) { //error, mismatched number of fields and values
-fail:
-		for (size_t i = 0; i != strs_alloced.size(); i++)
-			delete strs_alloced[i];
-		delete[] buf;
-		return false;
-	}
-
-	memcpy(out, buf, olen);
-	delete[] buf;
-	return true;
-}
-
-// Casts *buf to a signed or unsigned fixed-width integer of 'w' width
-#define SIGN_CAST(w, buf) (is_unsigned ? *((u##w *) buf) : *((s##w *) buf))
-
-bool serializeStructToString(std::string *out,
-	std::string format, void *value)
-{
-	std::ostringstream os;
-	std::string str;
-	char *f;
-	size_t strpos;
-
-	char *bufpos = (char *) value;
-	char *fmtpos, *fmt = &format[0];
-	while ((f = strtok_r(fmt, ",", &fmtpos))) {
-		fmt = nullptr;
-		bool is_unsigned = false;
-		int width = 0;
-		char valtype = *f;
-
-		width = (int)strtol(f + 1, &f, 10);
-		if (width && valtype == 's')
-			valtype = 'i';
-
-		switch (valtype) {
-			case 'u':
-				is_unsigned = true;
-				/* FALLTHROUGH */
-			case 'i':
-				if (width == 16) {
-					bufpos += PADDING(bufpos, u16);
-					os << SIGN_CAST(16, bufpos);
-					bufpos += sizeof(u16);
-				} else if (width == 32) {
-					bufpos += PADDING(bufpos, u32);
-					os << SIGN_CAST(32, bufpos);
-					bufpos += sizeof(u32);
-				} else if (width == 64) {
-					bufpos += PADDING(bufpos, u64);
-					os << SIGN_CAST(64, bufpos);
-					bufpos += sizeof(u64);
-				}
-				break;
-			case 'b':
-				bufpos += PADDING(bufpos, bool);
-				os << std::boolalpha << *((bool *) bufpos);
-				bufpos += sizeof(bool);
-				break;
-			case 'f':
-				bufpos += PADDING(bufpos, float);
-				os << *((float *) bufpos);
-				bufpos += sizeof(float);
-				break;
-			case 's':
-				bufpos += PADDING(bufpos, std::string *);
-				str = **((std::string **) bufpos);
-
-				strpos = 0;
-				while ((strpos = str.find('"', strpos)) != std::string::npos) {
-					str.insert(strpos, 1, '\\');
-					strpos += 2;
-				}
-
-				os << str;
-				bufpos += sizeof(std::string *);
-				break;
-			case 'v':
-				if (width == 2) {
-					bufpos += PADDING(bufpos, v2f);
-					v2f *v = (v2f *) bufpos;
-					os << '(' << v->X << ", " << v->Y << ')';
-					bufpos += sizeof(v2f);
-				} else {
-					bufpos += PADDING(bufpos, v3f);
-					v3f *v = (v3f *) bufpos;
-					os << '(' << v->X << ", " << v->Y << ", " << v->Z << ')';
-					bufpos += sizeof(v3f);
-				}
-				break;
-			default:
-				return false;
-		}
-		os << ", ";
-	}
-	*out = os.str();
-
-	// Trim off the trailing comma and space
-	if (out->size() >= 2)
-		out->resize(out->size() - 2);
-
-	return true;
-}
-
-#undef SIGN_CAST
-
-////
-//// Other
-////
-
-std::string serializeHexString(const std::string &data, bool insert_spaces)
-{
-	std::string result;
-	result.reserve(data.size() * (2 + insert_spaces));
-
-	static const char hex_chars[] = "0123456789abcdef";
-
-	const size_t len = data.size();
-	for (size_t i = 0; i != len; i++) {
-		u8 byte = data[i];
-		result.push_back(hex_chars[(byte >> 4) & 0x0F]);
-		result.push_back(hex_chars[(byte >> 0) & 0x0F]);
-		if (insert_spaces && i != len - 1)
-			result.push_back(' ');
-	}
-
-	return result;
-}
diff --git a/src/util/serialize.h b/src/util/serialize.h
index a4b5a234a..b3ec28eab 100644
--- a/src/util/serialize.h
+++ b/src/util/serialize.h
@@ -440,22 +440,16 @@ MAKE_STREAM_WRITE_FXN(video::SColor, ARGB8, 4);
 ////
 
 // Creates a string with the length as the first two bytes
-std::string serializeString(const std::string &plain);
-
-// Creates a string with the length as the first two bytes from wide string
-std::string serializeWideString(const std::wstring &plain);
+std::string serializeString16(const std::string &plain);
 
 // Reads a string with the length as the first two bytes
-std::string deSerializeString(std::istream &is);
-
-// Reads a wide string with the length as the first two bytes
-std::wstring deSerializeWideString(std::istream &is);
+std::string deSerializeString16(std::istream &is);
 
 // Creates a string with the length as the first four bytes
-std::string serializeLongString(const std::string &plain);
+std::string serializeString32(const std::string &plain);
 
 // Reads a string with the length as the first four bytes
-std::string deSerializeLongString(std::istream &is);
+std::string deSerializeString32(std::istream &is);
 
 // Creates a string encoded in JSON format (almost equivalent to a C string literal)
 std::string serializeJsonString(const std::string &plain);
@@ -469,239 +463,3 @@ std::string serializeJsonStringIfNeeded(const std::string &s);
 
 // Parses a string serialized by serializeJsonStringIfNeeded.
 std::string deSerializeJsonStringIfNeeded(std::istream &is);
-
-// Creates a string consisting of the hexadecimal representation of `data`
-std::string serializeHexString(const std::string &data, bool insert_spaces=false);
-
-// Creates a string containing comma delimited values of a struct whose layout is
-// described by the parameter format
-bool serializeStructToString(std::string *out,
-	std::string format, void *value);
-
-// Reads a comma delimited string of values into a struct whose layout is
-// decribed by the parameter format
-bool deSerializeStringToStruct(std::string valstr,
-	std::string format, void *out, size_t olen);
-
-////
-//// BufReader
-////
-
-#define MAKE_BUFREADER_GETNOEX_FXN(T, N, S) \
-	inline bool get ## N ## NoEx(T *val)    \
-	{                                       \
-		if (pos + S > size)                 \
-			return false;                   \
-		*val = read ## N(data + pos);       \
-		pos += S;                           \
-		return true;                        \
-	}
-
-#define MAKE_BUFREADER_GET_FXN(T, N) \
-	inline T get ## N()              \
-	{                                \
-		T val;                       \
-		if (!get ## N ## NoEx(&val)) \
-			throw SerializationError("Attempted read past end of data"); \
-		return val;                  \
-	}
-
-class BufReader {
-public:
-	BufReader(const u8 *data_, size_t size_) :
-		data(data_),
-		size(size_)
-	{
-	}
-
-	MAKE_BUFREADER_GETNOEX_FXN(u8,    U8,       1);
-	MAKE_BUFREADER_GETNOEX_FXN(u16,   U16,      2);
-	MAKE_BUFREADER_GETNOEX_FXN(u32,   U32,      4);
-	MAKE_BUFREADER_GETNOEX_FXN(u64,   U64,      8);
-	MAKE_BUFREADER_GETNOEX_FXN(s8,    S8,       1);
-	MAKE_BUFREADER_GETNOEX_FXN(s16,   S16,      2);
-	MAKE_BUFREADER_GETNOEX_FXN(s32,   S32,      4);
-	MAKE_BUFREADER_GETNOEX_FXN(s64,   S64,      8);
-	MAKE_BUFREADER_GETNOEX_FXN(f32,   F1000,    4);
-	MAKE_BUFREADER_GETNOEX_FXN(v2s16, V2S16,    4);
-	MAKE_BUFREADER_GETNOEX_FXN(v3s16, V3S16,    6);
-	MAKE_BUFREADER_GETNOEX_FXN(v2s32, V2S32,    8);
-	MAKE_BUFREADER_GETNOEX_FXN(v3s32, V3S32,   12);
-	MAKE_BUFREADER_GETNOEX_FXN(v3f,   V3F1000, 12);
-	MAKE_BUFREADER_GETNOEX_FXN(video::SColor, ARGB8, 4);
-
-	bool getStringNoEx(std::string *val);
-	bool getWideStringNoEx(std::wstring *val);
-	bool getLongStringNoEx(std::string *val);
-	bool getRawDataNoEx(void *data, size_t len);
-
-	MAKE_BUFREADER_GET_FXN(u8,            U8);
-	MAKE_BUFREADER_GET_FXN(u16,           U16);
-	MAKE_BUFREADER_GET_FXN(u32,           U32);
-	MAKE_BUFREADER_GET_FXN(u64,           U64);
-	MAKE_BUFREADER_GET_FXN(s8,            S8);
-	MAKE_BUFREADER_GET_FXN(s16,           S16);
-	MAKE_BUFREADER_GET_FXN(s32,           S32);
-	MAKE_BUFREADER_GET_FXN(s64,           S64);
-	MAKE_BUFREADER_GET_FXN(f32,           F1000);
-	MAKE_BUFREADER_GET_FXN(v2s16,         V2S16);
-	MAKE_BUFREADER_GET_FXN(v3s16,         V3S16);
-	MAKE_BUFREADER_GET_FXN(v2s32,         V2S32);
-	MAKE_BUFREADER_GET_FXN(v3s32,         V3S32);
-	MAKE_BUFREADER_GET_FXN(v3f,           V3F1000);
-	MAKE_BUFREADER_GET_FXN(video::SColor, ARGB8);
-	MAKE_BUFREADER_GET_FXN(std::string,   String);
-	MAKE_BUFREADER_GET_FXN(std::wstring,  WideString);
-	MAKE_BUFREADER_GET_FXN(std::string,   LongString);
-
-	inline void getRawData(void *val, size_t len)
-	{
-		if (!getRawDataNoEx(val, len))
-			throw SerializationError("Attempted read past end of data");
-	}
-
-	inline size_t remaining()
-	{
-		assert(pos <= size);
-		return size - pos;
-	}
-
-	const u8 *data;
-	size_t size;
-	size_t pos = 0;
-};
-
-#undef MAKE_BUFREADER_GET_FXN
-#undef MAKE_BUFREADER_GETNOEX_FXN
-
-
-////
-//// Vector-based write routines
-////
-
-inline void putU8(std::vector<u8> *dest, u8 val)
-{
-	dest->push_back((val >> 0) & 0xFF);
-}
-
-inline void putU16(std::vector<u8> *dest, u16 val)
-{
-	dest->push_back((val >> 8) & 0xFF);
-	dest->push_back((val >> 0) & 0xFF);
-}
-
-inline void putU32(std::vector<u8> *dest, u32 val)
-{
-	dest->push_back((val >> 24) & 0xFF);
-	dest->push_back((val >> 16) & 0xFF);
-	dest->push_back((val >>  8) & 0xFF);
-	dest->push_back((val >>  0) & 0xFF);
-}
-
-inline void putU64(std::vector<u8> *dest, u64 val)
-{
-	dest->push_back((val >> 56) & 0xFF);
-	dest->push_back((val >> 48) & 0xFF);
-	dest->push_back((val >> 40) & 0xFF);
-	dest->push_back((val >> 32) & 0xFF);
-	dest->push_back((val >> 24) & 0xFF);
-	dest->push_back((val >> 16) & 0xFF);
-	dest->push_back((val >>  8) & 0xFF);
-	dest->push_back((val >>  0) & 0xFF);
-}
-
-inline void putS8(std::vector<u8> *dest, s8 val)
-{
-	putU8(dest, val);
-}
-
-inline void putS16(std::vector<u8> *dest, s16 val)
-{
-	putU16(dest, val);
-}
-
-inline void putS32(std::vector<u8> *dest, s32 val)
-{
-	putU32(dest, val);
-}
-
-inline void putS64(std::vector<u8> *dest, s64 val)
-{
-	putU64(dest, val);
-}
-
-inline void putF1000(std::vector<u8> *dest, f32 val)
-{
-	putS32(dest, val * FIXEDPOINT_FACTOR);
-}
-
-inline void putV2S16(std::vector<u8> *dest, v2s16 val)
-{
-	putS16(dest, val.X);
-	putS16(dest, val.Y);
-}
-
-inline void putV3S16(std::vector<u8> *dest, v3s16 val)
-{
-	putS16(dest, val.X);
-	putS16(dest, val.Y);
-	putS16(dest, val.Z);
-}
-
-inline void putV2S32(std::vector<u8> *dest, v2s32 val)
-{
-	putS32(dest, val.X);
-	putS32(dest, val.Y);
-}
-
-inline void putV3S32(std::vector<u8> *dest, v3s32 val)
-{
-	putS32(dest, val.X);
-	putS32(dest, val.Y);
-	putS32(dest, val.Z);
-}
-
-inline void putV3F1000(std::vector<u8> *dest, v3f val)
-{
-	putF1000(dest, val.X);
-	putF1000(dest, val.Y);
-	putF1000(dest, val.Z);
-}
-
-inline void putARGB8(std::vector<u8> *dest, video::SColor val)
-{
-	putU32(dest, val.color);
-}
-
-inline void putString(std::vector<u8> *dest, const std::string &val)
-{
-	if (val.size() > STRING_MAX_LEN)
-		throw SerializationError("String too long");
-
-	putU16(dest, val.size());
-	dest->insert(dest->end(), val.begin(), val.end());
-}
-
-inline void putWideString(std::vector<u8> *dest, const std::wstring &val)
-{
-	if (val.size() > WIDE_STRING_MAX_LEN)
-		throw SerializationError("String too long");
-
-	putU16(dest, val.size());
-	for (size_t i = 0; i != val.size(); i++)
-		putU16(dest, val[i]);
-}
-
-inline void putLongString(std::vector<u8> *dest, const std::string &val)
-{
-	if (val.size() > LONG_STRING_MAX_LEN)
-		throw SerializationError("String too long");
-
-	putU32(dest, val.size());
-	dest->insert(dest->end(), val.begin(), val.end());
-}
-
-inline void putRawData(std::vector<u8> *dest, const void *src, size_t len)
-{
-	dest->insert(dest->end(), (u8 *)src, (u8 *)src + len);
-}
diff --git a/src/util/sha256.c b/src/util/sha256.c
index 4241f31f3..5c8266f9a 100644
--- a/src/util/sha256.c
+++ b/src/util/sha256.c
@@ -18,13 +18,13 @@ const char SHA256_version[] = "SHA-256" OPENSSL_VERSION_PTEXT;
 unsigned static char cleanse_ctr = 0;
 static void OPENSSL_cleanse(void *ptr, size_t len)
 {
-    unsigned char *p = ptr;
+    unsigned char *p = (unsigned char *)ptr;
     size_t loop = len, ctr = cleanse_ctr;
     while (loop--) {
         *(p++) = (unsigned char)ctr;
         ctr += (17 + ((size_t)p & 0xF));
     }
-    p = memchr(ptr, (unsigned char)ctr, len);
+    p = (unsigned char *)memchr(ptr, (unsigned char)ctr, len);
     if (p)
         ctr += (63 + (size_t)p);
     cleanse_ctr = (unsigned char)ctr;
@@ -262,7 +262,7 @@ static void sha256_block_data_order(SHA256_CTX *ctx, const void *in,
     unsigned MD32_REG_T a, b, c, d, e, f, g, h, s0, s1, T1;
     SHA_LONG X[16];
     int i;
-    const unsigned char *data = in;
+    const unsigned char *data = (const unsigned char *)in;
     const union {
         long one;
         char little;
diff --git a/src/util/string.cpp b/src/util/string.cpp
index 6e1db798c..8381a29c5 100644
--- a/src/util/string.cpp
+++ b/src/util/string.cpp
@@ -27,6 +27,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "translation.h"
 
 #include <algorithm>
+#include <array>
 #include <sstream>
 #include <iomanip>
 #include <map>
@@ -889,3 +890,70 @@ std::wstring translate_string(const std::wstring &s)
 	return translate_string(s, g_client_translations);
 #endif
 }
+
+static const std::array<std::wstring, 22> disallowed_dir_names = {
+	// Problematic filenames from here:
+	// https://docs.microsoft.com/en-us/windows/win32/fileio/naming-a-file#file-and-directory-names
+	L"CON",
+	L"PRN",
+	L"AUX",
+	L"NUL",
+	L"COM1",
+	L"COM2",
+	L"COM3",
+	L"COM4",
+	L"COM5",
+	L"COM6",
+	L"COM7",
+	L"COM8",
+	L"COM9",
+	L"LPT1",
+	L"LPT2",
+	L"LPT3",
+	L"LPT4",
+	L"LPT5",
+	L"LPT6",
+	L"LPT7",
+	L"LPT8",
+	L"LPT9",
+};
+
+/**
+ * List of characters that are blacklisted from created directories
+ */
+static const std::wstring disallowed_path_chars = L"<>:\"/\\|?*.";
+
+/**
+ * Sanitize the name of a new directory. This consists of two stages:
+ * 1. Check for 'reserved filenames' that can't be used on some filesystems
+ *	and add a prefix to them
+ * 2. Remove 'unsafe' characters from the name by replacing them with '_'
+ */
+std::string sanitizeDirName(const std::string &str, const std::string &optional_prefix)
+{
+	std::wstring safe_name = utf8_to_wide(str);
+
+	for (std::wstring disallowed_name : disallowed_dir_names) {
+		if (str_equal(safe_name, disallowed_name, true)) {
+			safe_name = utf8_to_wide(optional_prefix) + safe_name;
+			break;
+		}
+	}
+
+	for (unsigned long i = 0; i < safe_name.length(); i++) {
+		bool is_valid = true;
+
+		// Unlikely, but control characters should always be blacklisted
+		if (safe_name[i] < 32) {
+			is_valid = false;
+		} else if (safe_name[i] < 128) {
+			is_valid = disallowed_path_chars.find_first_of(safe_name[i])
+					== std::wstring::npos;
+		}
+
+		if (!is_valid)
+			safe_name[i] = '_';
+	}
+
+	return wide_to_utf8(safe_name);
+}
diff --git a/src/util/string.h b/src/util/string.h
index 185fb55e2..6fd11fadc 100644
--- a/src/util/string.h
+++ b/src/util/string.h
@@ -746,3 +746,11 @@ inline irr::core::stringw utf8_to_stringw(const std::string &input)
 	std::wstring str = utf8_to_wide(input);
 	return irr::core::stringw(str.c_str());
 }
+
+/**
+ * Sanitize the name of a new directory. This consists of two stages:
+ * 1. Check for 'reserved filenames' that can't be used on some filesystems
+ *    and prefix them
+ * 2. Remove 'unsafe' characters from the name by replacing them with '_'
+ */
+std::string sanitizeDirName(const std::string &str, const std::string &optional_prefix);