* Add semi transparent glass as patch.

.gitignore

@@ -435,3 +435,4 @@ xcuserdata/
 
 # Ignore options.txt - where your configuration will be saved
 /game/options.txt
+/game/assetsO

game/assets/patches/patch_data.txt

@@ -1,11 +1,12 @@
 #Texture patch data for Minecraft PE.  The # at the start denotes a comment, removing it makes it a command.
 # Commands you can use:
-# - terrain|x|y|filename   -- Patches terrain.png
-# - items|x|y|filename     -- Patches gui/items.png
-# - frame|itemid|x|y       -- Sets the base texture frame of the tile or itemID.
-# - vegetation_tint|bool   -- Enables default vegetation tint. (grass and leaves)
-# - metal_block_sides|int  -- Makes metal blocks have separate side textures, and allows specification of their Y offset. -1 to disable.
-# - stop_now               -- Stops processing at that line. All further commands will be ignored.
+# - terrain|x|y|filename        -- Patches terrain.png
+# - items|x|y|filename          -- Patches gui/items.png
+# - frame|itemid|x|y            -- Sets the base texture frame of the tile or itemID.
+# - vegetation_tint|bool        -- Enables default vegetation tint. (grass and leaves)
+# - metal_block_sides|int       -- Makes metal blocks have separate side textures, and allows specification of their Y offset. -1 to disable.
+# - semi_transparent_glass|bool -- Makes glass render on the alpha layer (as opposed to the opaque layer). Allows it to be semi transparent like ice.
+# - stop_now                    -- Stops processing at that line. All further commands will be ignored.
 
 # * The filename parameter will be a PNG file that can be found relative to this directory. For example, '../quiver.png' will load it from assets/, 'chain.png' will load it from assets/patches/.
 # * The X and Y destination coordinates will be multiplied by 16.

source/client/renderer/PatchManager.cpp

@@ -19,6 +19,7 @@ PatchManager* GetPatchManager()
 PatchManager::PatchManager()
 {
 	m_bGrassTinted = true;
+	m_bGlassSemiTransparent = false;
 	m_nMetalSideYOffset = -1;
 }
 
@@ -130,8 +131,11 @@ void PatchManager::LoadPatchData(const std::string& patchData)
 			ReadBool(lineStream, m_bGrassTinted);
 			continue;
 		}
-
-		// features -- TODO un-hardcode this
+		if (command == "semi_transparent_glass")
+		{
+			ReadBool(lineStream, m_bGlassSemiTransparent);
+			continue;
+		}
 		if (command == "metal_block_sides")
 		{
 			ReadInt(lineStream, m_nMetalSideYOffset);
@@ -208,6 +212,11 @@ int PatchManager::GetMetalSideYOffset()
 	return m_nMetalSideYOffset;
 }
 
+bool PatchManager::IsGlassSemiTransparent()
+{
+	return m_bGlassSemiTransparent;
+}
+
 void PatchManager::ReadBool(std::istream& is, bool& b)
 {
 	std::string flag;

source/client/renderer/PatchManager.hpp

@@ -79,6 +79,7 @@ public:
 	// Features
 	bool IsGrassTinted();
 	int  GetMetalSideYOffset();
+	bool IsGlassSemiTransparent();
 
 private:
 	void ReadBool(std::istream& is, bool& b);
@@ -86,6 +87,7 @@ private:
 
 private:
 	bool m_bGrassTinted;
+	bool m_bGlassSemiTransparent;
 	int m_nMetalSideYOffset;
 	std::vector<PatchData> m_patchData;
 };

source/world/tile/GlassTile.cpp

@@ -8,6 +8,7 @@
 
 #include "GlassTile.hpp"
 #include "world/level/Level.hpp"
+#include "client/renderer/PatchManager.hpp"
 
 GlassTile::GlassTile(int a, int b, Material* c) : HalfTransparentTile(a, b, c)
 {
@@ -16,4 +17,12 @@ GlassTile::GlassTile(int a, int b, Material* c) : HalfTransparentTile(a, b, c)
 int GlassTile::getResourceCount(Random* pRandom)
 {
 	return 0;
-}
+}
+
+int GlassTile::getRenderLayer()
+{
+	if (GetPatchManager()->IsGlassSemiTransparent())
+		return LAYER_ALPHA;
+
+	return LAYER_OPAQUE;
+}

source/world/tile/GlassTile.hpp

@@ -16,4 +16,5 @@ public:
 	GlassTile(int ID, int texture, Material*);
 
 	int getResourceCount(Random*) override;
+	int getRenderLayer() override;
 };