From 49dfccffc73b5ecd1b744dc98cd5252fc8908a2a Mon Sep 17 00:00:00 2001
From: CrazyPants <crazypants.mc@gmail.com>
Date: Wed, 8 Oct 2014 16:34:54 +0800
Subject: [PATCH] Added support for connected textures with facades.

---
 .../jbcs/minecraft/chisel/api/IFacade.java    | 12 ++++++++++++
 .../minecraft/chisel/client/render/CTM.java   | 19 +++++++++++++++++--
 2 files changed, 29 insertions(+), 2 deletions(-)
 create mode 100644 src/main/java/info/jbcs/minecraft/chisel/api/IFacade.java

diff --git a/src/main/java/info/jbcs/minecraft/chisel/api/IFacade.java b/src/main/java/info/jbcs/minecraft/chisel/api/IFacade.java
new file mode 100644
index 00000000..de49cf38
--- /dev/null
+++ b/src/main/java/info/jbcs/minecraft/chisel/api/IFacade.java
@@ -0,0 +1,12 @@
+package info.jbcs.minecraft.chisel.api;
+
+import net.minecraft.block.Block;
+import net.minecraft.world.IBlockAccess;
+
+public interface IFacade {
+
+  int getFacadeMetadata(IBlockAccess world, int x, int y, int z, int side);
+  
+  Block getFacade(IBlockAccess world, int x, int y, int z, int side);
+    
+}
diff --git a/src/main/java/info/jbcs/minecraft/chisel/client/render/CTM.java b/src/main/java/info/jbcs/minecraft/chisel/client/render/CTM.java
index ccee2b27..aab5ff66 100644
--- a/src/main/java/info/jbcs/minecraft/chisel/client/render/CTM.java
+++ b/src/main/java/info/jbcs/minecraft/chisel/client/render/CTM.java
@@ -1,5 +1,6 @@
 package info.jbcs.minecraft.chisel.client.render;
 
+import info.jbcs.minecraft.chisel.api.IFacade;
 import net.minecraft.block.Block;
 import net.minecraft.world.IBlockAccess;
 
@@ -284,9 +285,23 @@ public class CTM
                 break;
         }
 
-        return world.getBlock(x, y, z).equals(block) && world.getBlockMetadata(x, y, z) == meta && (!world.getBlock(x2, y2, z2).equals(block) || world.getBlockMetadata(x2, y2, z2) != meta);
-
+        return getBlockOrFacade(world, x, y, z, side).equals(block) && getBlockOrFacadeMetadata(world, x, y, z, side) == meta && (!getBlockOrFacade(world, x2, y2, z2, side).equals(block) || getBlockOrFacadeMetadata(world, x2, y2, z2, side) != meta);
     }
 
+    private static int getBlockOrFacadeMetadata(IBlockAccess world, int x, int y, int z, int side) {
+      Block blk = world.getBlock(x, y, z);
+      if(blk instanceof IFacade) {
+        return ((IFacade)blk).getFacadeMetadata(world, x, y, z, side);
+      }
+      return world.getBlockMetadata(x, y, z);
+    }
+
+    private static Block getBlockOrFacade(IBlockAccess world, int x, int y, int z, int side) {
+      Block blk = world.getBlock(x, y, z);
+      if(blk instanceof IFacade) {
+        blk = ((IFacade)blk).getFacade(world, x, y, z, side);
+      }
+      return blk;
+    }
 
 }