12 files changed, 295 insertions, 84 deletions

diff --git a/src/Blocks/BlockChest.h b/src/Blocks/BlockChest.h
index 30588d8fc..890b5b933 100644
--- a/src/Blocks/BlockChest.h
+++ b/src/Blocks/BlockChest.h
@@ -11,11 +11,11 @@
 
 
 class cBlockChestHandler :
-	public cMetaRotater<cBlockEntityHandler, 0x07, 0x04, 0x01, 0x03, 0x02, true>
+	public cMetaRotater<cBlockEntityHandler, 0x07, 0x02, 0x05, 0x03, 0x04>
 {
 public:
 	cBlockChestHandler(BLOCKTYPE a_BlockType)
-		: cMetaRotater<cBlockEntityHandler, 0x07, 0x04, 0x01, 0x03, 0x02, true>(a_BlockType)
+		: cMetaRotater<cBlockEntityHandler, 0x07, 0x02, 0x05, 0x03, 0x04>(a_BlockType)
 	{
 	}
 
diff --git a/src/Blocks/BlockDoor.cpp b/src/Blocks/BlockDoor.cpp
index 4e38ef334..c027daed2 100644
--- a/src/Blocks/BlockDoor.cpp
+++ b/src/Blocks/BlockDoor.cpp
@@ -110,3 +110,78 @@ const char * cBlockDoorHandler::GetStepSound(void)
 
 
 
+
+NIBBLETYPE cBlockDoorHandler::MetaRotateCCW(NIBBLETYPE a_Meta)
+{
+	if (a_Meta & 0x08)
+	{
+		return a_Meta;
+	}
+	else
+	{
+		return super::MetaRotateCCW(a_Meta);
+	}
+}
+
+
+
+NIBBLETYPE cBlockDoorHandler::MetaRotateCW(NIBBLETYPE a_Meta)
+{
+	if (a_Meta & 0x08)
+	{
+		return a_Meta;
+	}
+	else
+	{
+		return super::MetaRotateCW(a_Meta);
+	}
+}
+
+
+
+NIBBLETYPE cBlockDoorHandler::MetaMirrorXY(NIBBLETYPE a_Meta)
+{
+	// Top bit (0x08) contains door panel type (Top/Bottom panel)  Only Bottom panels contain position data
+	// Return a_Meta if panel is a top panel (0x08 bit is set to 1)
+	LOG("Test MirrorXY");
+	if (a_Meta & 0x08) return a_Meta;
+
+	// Holds open/closed meta data. 0x0C == 1100.
+	NIBBLETYPE OtherMeta = a_Meta & 0x0C;
+
+	// Mirrors according to a table.  0x03 == 0011.
+	switch (a_Meta & 0x03)
+	{
+		case 0x03: return 0x01 + OtherMeta;  // South -> North
+		case 0x01: return 0x03 + OtherMeta;  // North -> South
+	}
+
+	// Not Facing North or South; No change.
+	return a_Meta;
+}
+
+
+
+NIBBLETYPE cBlockDoorHandler::MetaMirrorYZ(NIBBLETYPE a_Meta)
+{
+	// Top bit (0x08) contains door panel type (Top/Bottom panel)  Only Bottom panels contain position data
+	// Return a_Meta if panel is a top panel (0x08 bit is set to 1)
+	LOG("Test MirrorYZ");
+	if (a_Meta & 0x08) return a_Meta;
+
+	// Holds open/closed meta data. 0x0C == 1100.
+	NIBBLETYPE OtherMeta = a_Meta & 0x0C;
+
+	// Mirrors according to a table.  0x03 == 0011.
+	switch (a_Meta & 0x03)
+	{
+		case 0x00: return 0x02 + OtherMeta;  // West  -> East
+		case 0x02: return 0x00 + OtherMeta;  // East  -> West
+	}
+
+	// Not Facing North or South; No change.
+	return a_Meta;
+}
+
+
+
diff --git a/src/Blocks/BlockDoor.h b/src/Blocks/BlockDoor.h
index 981774c17..066e1ab28 100644
--- a/src/Blocks/BlockDoor.h
+++ b/src/Blocks/BlockDoor.h
@@ -21,6 +21,10 @@ public:
 	virtual void OnCancelRightClick(cChunkInterface & a_ChunkInterface, cWorldInterface & a_WorldInterface, cPlayer * a_Player, int a_BlockX, int a_BlockY, int a_BlockZ, eBlockFace a_BlockFace) override;
 	virtual const char * GetStepSound(void) override;
 	
+	virtual NIBBLETYPE MetaRotateCCW(NIBBLETYPE a_Meta) override;
+	virtual NIBBLETYPE MetaRotateCW(NIBBLETYPE a_Meta)  override;
+	virtual NIBBLETYPE MetaMirrorXY(NIBBLETYPE a_Meta)  override;
+	virtual NIBBLETYPE MetaMirrorYZ(NIBBLETYPE a_Meta)  override;
 	
 	virtual bool GetPlacementBlockTypeMeta(
 		cChunkInterface & a_ChunkInterface, cPlayer * a_Player,
@@ -142,14 +146,14 @@ public:
 	static void ChangeDoor(cChunkInterface & a_ChunkInterface, int a_X, int a_Y, int a_Z)
 	{
 		NIBBLETYPE OldMetaData = a_ChunkInterface.GetBlockMeta(a_X, a_Y, a_Z);
-		
+
 		a_ChunkInterface.SetBlockMeta(a_X, a_Y, a_Z, ChangeStateMetaData(OldMetaData));
-		
+
 		if (OldMetaData & 8)
 		{
 			// Current block is top of the door
 			BLOCKTYPE  BottomBlock = a_ChunkInterface.GetBlock(a_X, a_Y - 1, a_Z);
-			NIBBLETYPE BottomMeta  = a_ChunkInterface.GetBlockMeta(a_X, a_Y - 1, a_Z);
+			NIBBLETYPE BottomMeta = a_ChunkInterface.GetBlockMeta(a_X, a_Y - 1, a_Z);
 
 			if (IsDoor(BottomBlock) && !(BottomMeta & 8))
 			{
@@ -168,62 +172,6 @@ public:
 			}
 		}
 	}
-	
-	
-	virtual NIBBLETYPE MetaRotateCCW(NIBBLETYPE a_Meta) override
-	{
-		if (a_Meta & 0x08) 
-		{
-			return a_Meta;
-		}
-		else
-		{
-			return super::MetaRotateCCW(a_Meta);
-		}
-	}
-	
-	
-	
-	virtual NIBBLETYPE MetaRotateCW(NIBBLETYPE a_Meta) override
-	{
-		if (a_Meta & 0x08) 
-		{
-			return a_Meta;
-		}
-		else
-		{
-			return super::MetaRotateCW(a_Meta);
-		}
-	}
-	
-	
-	
-	virtual NIBBLETYPE MetaMirrorXY(NIBBLETYPE a_Meta) override
-	{
-		if (a_Meta & 0x08) 
-		{
-			return a_Meta;
-		}
-		else
-		{
-			return super::MetaMirrorXY(a_Meta);
-		}
-	}
-	
-	
-	
-	virtual NIBBLETYPE MetaMirrorYZ(NIBBLETYPE a_Meta) override
-	{
-		if (a_Meta & 0x08) 
-		{
-			return a_Meta;
-		}
-		else
-		{
-			return super::MetaMirrorYZ(a_Meta);
-		}
-	}
-	
 } ;
 
 
diff --git a/src/Blocks/BlockFurnace.h b/src/Blocks/BlockFurnace.h
index 27ef2689f..c7f8ff8d2 100644
--- a/src/Blocks/BlockFurnace.h
+++ b/src/Blocks/BlockFurnace.h
@@ -4,17 +4,17 @@
 #include "BlockEntity.h"
 #include "../World.h"
 #include "../Piston.h"
-
+#include "MetaRotater.h"
 
 
 
 
 class cBlockFurnaceHandler :
-	public cBlockEntityHandler
+	public cMetaRotater<cBlockEntityHandler, 0x07, 0x02, 0x05, 0x03, 0x04>
 {
 public:
-	cBlockFurnaceHandler(BLOCKTYPE a_BlockType) :
-		cBlockEntityHandler(a_BlockType)
+	cBlockFurnaceHandler(BLOCKTYPE a_BlockType) 
+		: cMetaRotater<cBlockEntityHandler, 0x07, 0x02, 0x05, 0x03, 0x04>(a_BlockType)
 	{
 	}
 
diff --git a/src/Blocks/BlockHopper.h b/src/Blocks/BlockHopper.h
index 59b84aa0e..610296529 100644
--- a/src/Blocks/BlockHopper.h
+++ b/src/Blocks/BlockHopper.h
@@ -3,16 +3,16 @@
 
 // Declares the cBlockHopperHandler class representing the handler for the Hopper block
 
-
+#include "MetaRotator.h"
 
 
 
 class cBlockHopperHandler :
-	public cBlockEntityHandler
+	public cMetaRotater<cBlockEntityHandler, 0x07, 0x02, 0x05, 0x03, 0x04>
 {
 public:
 	cBlockHopperHandler(BLOCKTYPE a_BlockType)
-		: cBlockEntityHandler(a_BlockType)
+		: cMetaRotater<cBlockEntityHandler, 0x07, 0x02, 0x05, 0x03, 0x04>(a_BlockType)
 	{
 	}
 
@@ -39,6 +39,21 @@ public:
 		}
 		return true;
 	}
+
+
+	virtual NIBBLETYPE MetaMirrorXZ(NIBBLETYPE a_Meta) override
+	{
+		// Bit 0x08 is a flag.  Lowest three bits are position.  0x08 == 1000
+		NIBBLETYPE OtherMeta = a_Meta & 0x08;
+		// Mirrors defined by by a table. (Source, mincraft.gamepedia.com) 0x07 == 0111
+		switch (a_Meta & 0x07)
+		{
+			case 0x00: return 0x01 + OtherMeta;  // Down -> Up
+			case 0x01: return 0x00 + OtherMeta;  // Up   -> Down
+		}
+		// Not Facing Up or Down; No change.
+		return a_Meta;
+	}
 } ;
 
 
diff --git a/src/Blocks/BlockLadder.h b/src/Blocks/BlockLadder.h
index a3e9edc6b..12408759e 100644
--- a/src/Blocks/BlockLadder.h
+++ b/src/Blocks/BlockLadder.h
@@ -9,11 +9,11 @@
 
 
 class cBlockLadderHandler :
-	public cBlockHandler
+	public cMetaRotater<cBlockHandler, 0x07, 0x02, 0x05, 0x03, 0x04>
 {
 public:
 	cBlockLadderHandler(BLOCKTYPE a_BlockType)
-		: cBlockHandler(a_BlockType)
+		: cMetaRotater<cBlockHandler, 0x07, 0x02, 0x05, 0x03, 0x04>(a_BlockType)
 	{
 	}	
 
diff --git a/src/Blocks/BlockLever.h b/src/Blocks/BlockLever.h
index ef6e102cd..ad2ae29e5 100644
--- a/src/Blocks/BlockLever.h
+++ b/src/Blocks/BlockLever.h
@@ -1,17 +1,18 @@
 #pragma once
 
 #include "BlockHandler.h"
-
+#include "MetaRotator.h"
 
 
 
 
 class cBlockLeverHandler :
-	public cBlockHandler
+	public cMetaRotator<cBlockHandler, 0x07, 0x04, 0x02, 0x03, 0x01, false>
 {
+	typedef cMetaRotator<cBlockHandler, 0x07, 0x04, 0x02, 0x03, 0x01, false> super;
 public:
 	cBlockLeverHandler(BLOCKTYPE a_BlockType)
-		: cBlockHandler(a_BlockType)
+		: cMetaRotator<cBlockHandler, 0x07, 0x04, 0x02, 0x03, 0x01, false>(a_BlockType)
 	{
 	}
 	
@@ -104,6 +105,36 @@ public:
 
 		return (a_RelY > 0) && cBlockInfo::IsSolid(BlockIsOn);
 	}
+
+
+	virtual NIBBLETYPE MetaRotateCCW(NIBBLETYPE a_Meta) override
+	{
+		switch (a_Meta)
+		{
+			case 0x00: return 0x07;  // Ceiling rotation
+			case 0x07: return 0x00;
+
+			case 0x05: return 0x06;  // Ground rotation
+			case 0x06: return 0x05;
+
+			default:  return super::MetaRotateCCW(a_Meta);  // Wall Rotation
+		}
+	}
+
+
+	virtual NIBBLETYPE MetaRotateCW(NIBBLETYPE a_Meta) override
+	{
+		switch (a_Meta)
+		{
+			case 0x00: return 0x07;  // Ceiling rotation
+			case 0x07: return 0x00;
+
+			case 0x05: return 0x06;  // Ground rotation
+			case 0x06: return 0x05;
+
+			default:  return super::MetaRotateCCW(a_Meta);  // Wall Rotation
+		}
+	}
 } ;
 
 
diff --git a/src/Blocks/BlockPumpkin.h b/src/Blocks/BlockPumpkin.h
index 349f52605..ac2b9817a 100644
--- a/src/Blocks/BlockPumpkin.h
+++ b/src/Blocks/BlockPumpkin.h
@@ -1,16 +1,16 @@
 #pragma once
 
 #include "BlockHandler.h"
-
+#include "MetaRotator.h"
 
 
 
 class cBlockPumpkinHandler :
-	public cBlockHandler
+	public cMetaRotator<cBlockHandler, 0x07, 0x02, 0x03, 0x00, 0x01, false>
 {
 public:
 	cBlockPumpkinHandler(BLOCKTYPE a_BlockType)
-		: cBlockHandler(a_BlockType)
+		: cMetaRotator<cBlockHandler, 0x07, 0x02, 0x03, 0x00, 0x01, false>(a_BlockType)
 	{
 	}
 	
diff --git a/src/Blocks/BlockRail.h b/src/Blocks/BlockRail.h
index 07e9814cd..f56ec7152 100644
--- a/src/Blocks/BlockRail.h
+++ b/src/Blocks/BlockRail.h
@@ -434,6 +434,141 @@ public:
 		}
 		return true;
 	}
+
+
+	virtual NIBBLETYPE MetaRotateCCW(NIBBLETYPE a_Meta) override
+	{
+		// Bit 0x08 is a flag when a_Meta is in the range 0x00--0x05 and 0x0A--0x0F.
+		// Bit 0x08 specifies direction when a_Meta is in the range 0x06-0x09.
+		if ((a_Meta < 0x06) || (a_Meta > 0x09))
+		{
+			//  Save powered rail flag.
+			NIBBLETYPE OtherMeta = a_Meta & 0x08;
+			// Rotates according to table; 0x07 == 0111.
+			// Rails can either be flat (North/South) or Ascending (Asc. East)
+			switch (a_Meta & 0x07)
+			{
+				case 0x00: return 0x01 + OtherMeta;  // North/South -> East/West
+				case 0x01: return 0x00 + OtherMeta;  // East/West   -> North/South
+
+				case 0x02: return 0x04 + OtherMeta;  // Asc. East   -> Asc. North
+				case 0x04: return 0x03 + OtherMeta;  // Asc. North  -> Asc. West
+				case 0x03: return 0x05 + OtherMeta;	 // Asc. West   -> Asc. South
+				case 0x05: return 0x02 + OtherMeta;	 // Asc. South  -> Asc. East
+			}
+		}
+		else
+		{
+			switch (a_Meta)
+			{
+				// Corner Directions
+				case 0x06: return 0x09;  // Northwest Cnr. -> Southwest Cnr.
+				case 0x07: return 0x06;  // Northeast Cnr. -> Northwest Cnr.
+				case 0x08: return 0x07;  // Southeast Cnr. -> Northeast Cnr.
+				case 0x09: return 0x08;  // Southwest Cnr. -> Southeast Cnr.
+			}
+		}
+		// To avoid a compiler warning;
+		return a_Meta;
+	}
+
+
+	virtual NIBBLETYPE MetaRotateCW(NIBBLETYPE a_Meta) override
+	{
+		// Bit 0x08 is a flag for value in the range 0x00--0x05 and specifies direction for values withint 0x006--0x09.
+		if ((a_Meta < 0x06) || (a_Meta > 0x09))
+		{
+			//  Save powered rail flag.
+			NIBBLETYPE OtherMeta = a_Meta & 0x08;
+			// Rotates according to table; 0x07 == 0111.
+			// Rails can either be flat (North/South) or Ascending (Asc. East)
+			switch (a_Meta & 0x07)
+			{
+				case 0x00: return 0x01 + OtherMeta;  // North/South -> East/West
+				case 0x01: return 0x00 + OtherMeta;  // East/West   -> North/South
+
+				case 0x02: return 0x05 + OtherMeta;  // Asc. East   -> Asc. South
+				case 0x05: return 0x03 + OtherMeta;  // Asc. South  -> Asc. West
+				case 0x03: return 0x04 + OtherMeta;	 // Asc. West   -> Asc. North
+				case 0x04: return 0x02 + OtherMeta;	 // Asc. North  -> Asc. East
+			}
+		}
+		else
+		{
+			switch (a_Meta)
+			{
+				// Corner Directions
+				case 0x06: return 0x07;  // Northwest Cnr. -> Northeast Cnr.
+				case 0x07: return 0x08;  // Northeast Cnr. -> Southeast Cnr.
+				case 0x08: return 0x09;  // Southeast Cnr. -> Southwest Cnr.
+				case 0x09: return 0x06;  // Southwest Cnr. -> Northwest Cnr.
+			}
+		}
+		// To avoid a compiler warning;
+		return a_Meta;
+	}
+
+
+	virtual NIBBLETYPE MetaMirrorXY(NIBBLETYPE a_Meta) override
+	{
+		// Bit 0x08 is a flag for value in the range 0x00--0x05 and specifies direction for values withint 0x006--0x09.
+		if ((a_Meta < 0x06) || (a_Meta > 0x09))
+		{
+			//  Save powered rail flag.
+			NIBBLETYPE OtherMeta = a_Meta & 0x08;
+			// Mirrors according to table; 0x07 == 0111.
+			// Rails can either be flat (North/South) or Ascending (Asc. East)
+			switch (a_Meta & 0x07)
+			{
+				case 0x05: return 0x04 + OtherMeta;  // Asc. South  -> Asc. North
+				case 0x04: return 0x05 + OtherMeta;	 // Asc. North  -> Asc. South
+			}
+		}
+		else
+		{
+			switch (a_Meta)
+			{
+				// Corner Directions
+				case 0x06: return 0x09;  // Northwest Cnr. -> Southwest Cnr.
+				case 0x07: return 0x08;  // Northeast Cnr. -> Southeast Cnr.
+				case 0x08: return 0x07;  // Southeast Cnr. -> Northeast Cnr.
+				case 0x09: return 0x06;  // Southwest Cnr. -> Northwest Cnr.
+			}
+		}
+		// To avoid a compiler warning;
+		return a_Meta;
+	}
+
+
+	virtual NIBBLETYPE MetaMirrorYZ(NIBBLETYPE a_Meta) override
+	{
+		// Bit 0x08 is a flag for value in the range 0x00--0x05 and specifies direction for values withint 0x006--0x09.
+		if ((a_Meta < 0x06) || (a_Meta > 0x09))
+		{
+			//  Save powered rail flag.
+			NIBBLETYPE OtherMeta = a_Meta & 0x08;
+			// Mirrors according to table; 0x07 == 0111.
+			// Rails can either be flat (North/South) or Ascending (Asc. East)
+			switch (a_Meta & 0x07)
+			{
+				case 0x02: return 0x03 + OtherMeta;  // Asc. East   -> Asc. West
+				case 0x03: return 0x02 + OtherMeta;	 // Asc. West   -> Asc. East
+			}
+		}
+		else
+		{
+			switch (a_Meta)
+			{
+				// Corner Directions
+				case 0x06: return 0x07;  // Northwest Cnr. -> Northeast Cnr.
+				case 0x07: return 0x06;  // Northeast Cnr. -> Northwest Cnr.
+				case 0x08: return 0x09;  // Southeast Cnr. -> Southwest Cnr.
+				case 0x09: return 0x08;  // Southwest Cnr. -> Southeast Cnr.
+			}
+		}
+		// To avoid a compiler warning;
+		return a_Meta;
+	}
 } ;
 
 
diff --git a/src/Blocks/BlockRedstoneRepeater.h b/src/Blocks/BlockRedstoneRepeater.h
index 1e2a86949..fe6cd21b9 100644
--- a/src/Blocks/BlockRedstoneRepeater.h
+++ b/src/Blocks/BlockRedstoneRepeater.h
@@ -3,17 +3,17 @@
 
 #include "BlockHandler.h"
 #include "Chunk.h"
-
+#include "MetaRotator.h"
 
 
 
 
 class cBlockRedstoneRepeaterHandler :
-	public cBlockHandler
+	public cMetaRotator<cBlockHandler, 0x03, 0x00, 0x01, 0x02, 0x03, true>
 {
 public:
 	cBlockRedstoneRepeaterHandler(BLOCKTYPE a_BlockType)
-		: cBlockHandler(a_BlockType)
+		: cMetaRotator<cBlockHandler, 0x03, 0x00, 0x01, 0x02, 0x03, true>(a_BlockType)
 	{
 	}
 
diff --git a/src/Blocks/BlockSlab.h b/src/Blocks/BlockSlab.h
index 7cd2c97b2..b18bf7ef3 100644
--- a/src/Blocks/BlockSlab.h
+++ b/src/Blocks/BlockSlab.h
@@ -14,8 +14,6 @@
 
 
 
-
-
 class cBlockSlabHandler :
 	public cBlockHandler
 {
@@ -184,6 +182,15 @@ public:
 		ASSERT(!"Unhandled double slab type!");
 		return "";
 	}
+
+
+	virtual NIBBLETYPE MetaMirrorXZ(NIBBLETYPE a_Meta) override
+	{
+		NIBBLETYPE OtherMeta = a_Meta & 0x07;  // Contains unrelate meta data.
+
+		// 8th bit is up/down.  1 right-side-up, 0 is up-side-down.
+		return (a_Meta & 0x08) ? 0x00 + OtherMeta : 0x01 + OtherMeta;
+	}
 } ;
 
 
diff --git a/src/Blocks/BlockTrapdoor.h b/src/Blocks/BlockTrapdoor.h
index 9bae92c4d..6a36ab874 100644
--- a/src/Blocks/BlockTrapdoor.h
+++ b/src/Blocks/BlockTrapdoor.h
@@ -2,17 +2,17 @@
 #pragma once
 
 #include "BlockHandler.h"
-
+#include "MetaRotator.h"
 
 
 
 
 class cBlockTrapdoorHandler :
-	public cBlockHandler
+	public cMetaRotator<cBlockHandler, 0x03, 0x01, 0x02, 0x00, 0x03, false>
 {
 public:
 	cBlockTrapdoorHandler(BLOCKTYPE a_BlockType)
-		: cBlockHandler(a_BlockType)
+		: cMetaRotator<cBlockHandler, 0x03, 0x01, 0x02, 0x00, 0x03, false>(a_BlockType)
 	{
 	}