From 7538b4c6201675c566c98b21c8ecddb798a14943 Mon Sep 17 00:00:00 2001
From: Perttu Ahola <celeron55@gmail.com>
Date: Sat, 25 Jun 2011 04:25:14 +0300
Subject: New map generator added (and SQLite, messed up the commits at that
 time...) (import from temporary git repo)

---
 src/environment.cpp | 128 ++++++++++++++++++++++++++++++----------------------
 1 file changed, 75 insertions(+), 53 deletions(-)

(limited to 'src/environment.cpp')

diff --git a/src/environment.cpp b/src/environment.cpp
index 8f8628305..9bbba08b0 100644
--- a/src/environment.cpp
+++ b/src/environment.cpp
@@ -579,6 +579,64 @@ void spawnRandomObjects(MapBlock *block)
 }
 #endif
 
+void ServerEnvironment::activateBlock(MapBlock *block, u32 additional_dtime)
+{
+	// Get time difference
+	u32 dtime_s = 0;
+	u32 stamp = block->getTimestamp();
+	if(m_game_time > stamp && stamp != BLOCK_TIMESTAMP_UNDEFINED)
+		dtime_s = m_game_time - block->getTimestamp();
+	dtime_s += additional_dtime;
+
+	// Set current time as timestamp (and let it set ChangedFlag)
+	block->setTimestamp(m_game_time);
+
+	//dstream<<"Block is "<<dtime_s<<" seconds old."<<std::endl;
+	
+	// Activate stored objects
+	activateObjects(block);
+
+	// Run node metadata
+	bool changed = block->m_node_metadata.step((float)dtime_s);
+	if(changed)
+	{
+		MapEditEvent event;
+		event.type = MEET_BLOCK_NODE_METADATA_CHANGED;
+		event.p = block->getPos();
+		m_map->dispatchEvent(&event);
+
+		block->setChangedFlag();
+	}
+
+	// TODO: Do something
+	// TODO: Implement usage of ActiveBlockModifier
+	
+	// Here's a quick demonstration
+	v3s16 p0;
+	for(p0.X=0; p0.X<MAP_BLOCKSIZE; p0.X++)
+	for(p0.Y=0; p0.Y<MAP_BLOCKSIZE; p0.Y++)
+	for(p0.Z=0; p0.Z<MAP_BLOCKSIZE; p0.Z++)
+	{
+		v3s16 p = p0 + block->getPosRelative();
+		MapNode n = block->getNodeNoEx(p0);
+		// Test something:
+		// Convert all mud under proper day lighting to grass
+		if(n.d == CONTENT_MUD)
+		{
+			if(dtime_s > 300)
+			{
+				MapNode n_top = block->getNodeNoEx(p0+v3s16(0,1,0));
+				if(content_features(n_top.d).air_equivalent &&
+						n_top.getLight(LIGHTBANK_DAY) >= 13)
+				{
+					n.d = CONTENT_GRASS;
+					m_map->addNodeWithEvent(p, n);
+				}
+			}
+		}
+	}
+}
+
 void ServerEnvironment::step(float dtime)
 {
 	DSTACK(__FUNCTION_NAME);
@@ -715,60 +773,8 @@ void ServerEnvironment::step(float dtime)
 			MapBlock *block = m_map->getBlockNoCreateNoEx(p);
 			if(block==NULL)
 				continue;
-			
-			// Get time difference
-			u32 dtime_s = 0;
-			u32 stamp = block->getTimestamp();
-			if(m_game_time > stamp && stamp != BLOCK_TIMESTAMP_UNDEFINED)
-				dtime_s = m_game_time - block->getTimestamp();
-
-			// Set current time as timestamp (and let it set ChangedFlag)
-			block->setTimestamp(m_game_time);
-
-			//dstream<<"Block is "<<dtime_s<<" seconds old."<<std::endl;
-			
-			// Activate stored objects
-			activateObjects(block);
-
-			// Run node metadata
-			bool changed = block->m_node_metadata.step((float)dtime_s);
-			if(changed)
-			{
-				MapEditEvent event;
-				event.type = MEET_BLOCK_NODE_METADATA_CHANGED;
-				event.p = p;
-				m_map->dispatchEvent(&event);
 
-				block->setChangedFlag();
-			}
-
-			// TODO: Do something
-			// TODO: Implement usage of ActiveBlockModifier
-			
-			// Here's a quick demonstration
-			v3s16 p0;
-			for(p0.X=0; p0.X<MAP_BLOCKSIZE; p0.X++)
-			for(p0.Y=0; p0.Y<MAP_BLOCKSIZE; p0.Y++)
-			for(p0.Z=0; p0.Z<MAP_BLOCKSIZE; p0.Z++)
-			{
-				v3s16 p = p0 + block->getPosRelative();
-				MapNode n = block->getNodeNoEx(p0);
-				// Test something:
-				// Convert all mud under proper day lighting to grass
-				if(n.d == CONTENT_MUD)
-				{
-					if(dtime_s > 300)
-					{
-						MapNode n_top = block->getNodeNoEx(p0+v3s16(0,1,0));
-						if(content_features(n_top.d).air_equivalent &&
-								n_top.getLight(LIGHTBANK_DAY) >= 13)
-						{
-							n.d = CONTENT_GRASS;
-							m_map->addNodeWithEvent(p, n);
-						}
-					}
-				}
-			}
+			activateBlock(block);
 		}
 	}
 
@@ -867,6 +873,22 @@ void ServerEnvironment::step(float dtime)
 						}
 					}
 				}
+				/*
+					Convert grass into mud if under something else than air
+				*/
+				else if(n.d == CONTENT_GRASS)
+				{
+					//if(myrand()%20 == 0)
+					{
+						MapNode n_top = block->getNodeNoEx(p0+v3s16(0,1,0));
+						if(n_top.d != CONTENT_AIR
+								&& n_top.d != CONTENT_IGNORE)
+						{
+							n.d = CONTENT_MUD;
+							m_map->addNodeWithEvent(p, n);
+						}
+					}
+				}
 			}
 		}
 	}
-- 
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