Textures: introduce world-align overrides (#12540)

Many games do not care about world align textures, however texture packs should have the capabilities to change that if they have suitable textures. This commmit now introduces a node property override for world-align in particular to force a certain scale on the selected override tiles.

1 files changed, 46 insertions, 39 deletions

diff --git a/src/texture_override.cpp b/src/texture_override.cpp
index effdb0efd..81c986ccf 100644
--- a/src/texture_override.cpp
+++ b/src/texture_override.cpp
@@ -26,6 +26,26 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 
 #define override_cast static_cast<override_t>
 
+static const std::map<std::string, OverrideTarget> override_LUT = {
+	{ "top", OverrideTarget::TOP },
+	{ "bottom", OverrideTarget::BOTTOM },
+	{ "left", OverrideTarget::LEFT },
+	{ "right", OverrideTarget::RIGHT },
+	{ "front", OverrideTarget::FRONT },
+	{ "back", OverrideTarget::BACK },
+	{ "inventory", OverrideTarget::INVENTORY },
+	{ "wield", OverrideTarget::WIELD },
+	{ "special1", OverrideTarget::SPECIAL_1 },
+	{ "special2", OverrideTarget::SPECIAL_2 },
+	{ "special3", OverrideTarget::SPECIAL_3 },
+	{ "special4", OverrideTarget::SPECIAL_4 },
+	{ "special5", OverrideTarget::SPECIAL_5 },
+	{ "special6", OverrideTarget::SPECIAL_6 },
+	{ "sides", OverrideTarget::SIDES },
+	{ "all", OverrideTarget::ALL_FACES },
+	{ "*", OverrideTarget::ALL_FACES }
+};
+
 TextureOverrideSource::TextureOverrideSource(std::string filepath)
 {
 	std::ifstream infile(filepath.c_str());
@@ -41,8 +61,9 @@ TextureOverrideSource::TextureOverrideSource(std::string filepath)
 		if (line.empty() || line[0] == '#')
 			continue;
 
+		// Format: mod_name:item_name target1[,...] texture_name.png
 		std::vector<std::string> splitted = str_split(line, ' ');
-		if (splitted.size() != 3) {
+		if (splitted.size() < 3) {
 			warningstream << filepath << ":" << line_index
 					<< " Syntax error in texture override \"" << line
 					<< "\": Expected 3 arguments, got " << splitted.size()
@@ -57,45 +78,31 @@ TextureOverrideSource::TextureOverrideSource(std::string filepath)
 		// Parse the target mask
 		std::vector<std::string> targets = str_split(splitted[1], ',');
 		for (const std::string &target : targets) {
-			if (target == "top")
-				texture_override.target |= override_cast(OverrideTarget::TOP);
-			else if (target == "bottom")
-				texture_override.target |= override_cast(OverrideTarget::BOTTOM);
-			else if (target == "left")
-				texture_override.target |= override_cast(OverrideTarget::LEFT);
-			else if (target == "right")
-				texture_override.target |= override_cast(OverrideTarget::RIGHT);
-			else if (target == "front")
-				texture_override.target |= override_cast(OverrideTarget::FRONT);
-			else if (target == "back")
-				texture_override.target |= override_cast(OverrideTarget::BACK);
-			else if (target == "inventory")
-				texture_override.target |= override_cast(OverrideTarget::INVENTORY);
-			else if (target == "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 |= override_cast(OverrideTarget::SIDES);
-			else if (target == "all" || target == "*")
-				texture_override.target |= override_cast(OverrideTarget::ALL_FACES);
-			else {
-				// Report invalid target
-				warningstream << filepath << ":" << line_index
-						<< " Syntax error in texture override \"" << line
-						<< "\": Unknown target \"" << target << "\""
-						<< std::endl;
+			std::vector<std::string> kvpair = str_split(target, '=');
+			if (kvpair.size() == 2) {
+				// Key-value pairs
+				if (kvpair[0] == "align_world") {
+					// Global textures
+					texture_override.world_scale = stoi(kvpair[1], 0, U8_MAX);
+					continue;
+				}
+			}
+			if (kvpair.size() == 1) {
+				// Regular override flags
+				auto pair = override_LUT.find(target);
+
+				if (pair != override_LUT.end()) {
+					texture_override.target |= override_cast(pair->second);
+					continue;
+				}
 			}
+
+			// Report invalid target
+			warningstream << filepath << ":" << line_index
+					<< " Syntax error in texture override \"" << line
+					<< "\": Unknown target \"" << target << "\""
+					<< std::endl;
+			
 		}
 
 		// If there are no valid targets, skip adding this override