4 files changed, 48 insertions, 12 deletions

diff --git a/source/Blocks/BlockButton.cpp b/source/Blocks/BlockButton.cpp
index 19b055b62..a48e82f4d 100644
--- a/source/Blocks/BlockButton.cpp
+++ b/source/Blocks/BlockButton.cpp
@@ -18,13 +18,13 @@ cBlockButtonHandler::cBlockButtonHandler(BLOCKTYPE a_BlockType)
 void cBlockButtonHandler::OnUse(cWorld *a_World, cPlayer *a_Player, int a_BlockX, int a_BlockY, int a_BlockZ, char a_BlockFace, int a_CursorX, int a_CursorY, int a_CursorZ)
 {
 	// Flip the ON bit on/off using the XOR bitwise operation
-	NIBBLETYPE Meta = ((a_World->GetBlockMeta(a_BlockX, a_BlockY, a_BlockZ) ^ 0x08) & 0x0f);
+	NIBBLETYPE Meta = (a_World->GetBlockMeta(a_BlockX, a_BlockY, a_BlockZ) | 0x08);
 	
 	a_World->SetBlock(a_BlockX, a_BlockY, a_BlockZ, m_BlockType, Meta);
 	a_World->BroadcastSoundEffect("random.click", a_BlockX * 8, a_BlockY * 8, a_BlockZ * 8, 0.5f, (Meta & 0x08) ? 0.6f : 0.5f);
 
 	// Queue a button reset (unpress)
-	a_World->QueueSetBlock(a_BlockX, a_BlockY, a_BlockZ, m_BlockType, ((a_World->GetBlockMeta(a_BlockX, a_BlockY, a_BlockZ) ^ 0x08) & 0x0f), m_BlockType == E_BLOCK_STONE_BUTTON ? 20 : 30);
+	a_World->QueueSetBlock(a_BlockX, a_BlockY, a_BlockZ, m_BlockType, (a_World->GetBlockMeta(a_BlockX, a_BlockY, a_BlockZ) & 0x07), m_BlockType == E_BLOCK_STONE_BUTTON ? 20 : 30);
 }
 
 
diff --git a/source/Blocks/BlockButton.h b/source/Blocks/BlockButton.h
index 15649acc0..e2c60002b 100644
--- a/source/Blocks/BlockButton.h
+++ b/source/Blocks/BlockButton.h
@@ -81,10 +81,13 @@ public:
 
 	virtual bool CanBeAt(int a_RelX, int a_RelY, int a_RelZ, const cChunk & a_Chunk) override
 	{
-		NIBBLETYPE Meta = a_Chunk.GetMeta(a_RelX, a_RelY, a_RelZ);
+		NIBBLETYPE Meta;
+		a_Chunk.UnboundedRelGetBlockMeta(a_RelX, a_RelY, a_RelZ, Meta);
 
 		AddFaceDirection(a_RelX, a_RelY, a_RelZ, BlockMetaDataToBlockFace(Meta), true);
-		return (a_RelY > 0) && (g_BlockIsSolid[a_Chunk.GetBlock(a_RelX, a_RelY, a_RelZ)]);
+		BLOCKTYPE BlockIsOn; a_Chunk.UnboundedRelGetBlockType(a_RelX, a_RelY, a_RelZ, BlockIsOn);
+
+		return (a_RelY > 0) && (g_BlockIsSolid[BlockIsOn]);
 	}
 } ;
 
diff --git a/source/Blocks/BlockLever.cpp b/source/Blocks/BlockLever.cpp
index 2739fa3a9..c482b0246 100644
--- a/source/Blocks/BlockLever.cpp
+++ b/source/Blocks/BlockLever.cpp
@@ -20,7 +20,7 @@ cBlockLeverHandler::cBlockLeverHandler(BLOCKTYPE a_BlockType)
 void cBlockLeverHandler::OnUse(cWorld *a_World, cPlayer *a_Player, int a_BlockX, int a_BlockY, int a_BlockZ, char a_BlockFace, int a_CursorX, int a_CursorY, int a_CursorZ)
 {
 	// Flip the ON bit on/off using the XOR bitwise operation
-	NIBBLETYPE Meta = ((a_World->GetBlockMeta(a_BlockX, a_BlockY, a_BlockZ) ^ 0x08) & 0x0f);
+	NIBBLETYPE Meta = (a_World->GetBlockMeta(a_BlockX, a_BlockY, a_BlockZ) ^ 0x08);
 
 	a_World->SetBlock(a_BlockX, a_BlockY, a_BlockZ, m_BlockType, Meta);
 	a_World->BroadcastSoundEffect("random.click", a_BlockX * 8, a_BlockY * 8, a_BlockZ * 8, 0.5f, (Meta & 0x08) ? 0.6f : 0.5f);
diff --git a/source/Blocks/BlockLever.h b/source/Blocks/BlockLever.h
index fe7ecdf7e..5e6a3bd1e 100644
--- a/source/Blocks/BlockLever.h
+++ b/source/Blocks/BlockLever.h
@@ -46,13 +46,13 @@ public:
 		// Determine lever direction:
 		switch (a_Dir)
 		{
-			case BLOCK_FACE_TOP:    return 0x6;
-			case BLOCK_FACE_EAST:   return 0x1;
-			case BLOCK_FACE_WEST:   return 0x2;
-			case BLOCK_FACE_SOUTH:  return 0x3;
-			case BLOCK_FACE_NORTH:  return 0x4;
-			case BLOCK_FACE_BOTTOM: return 0x0;
-			default:                return 0x6;
+			case BLOCK_FACE_YP: return 0x6;
+			case BLOCK_FACE_XP: return 0x1;
+			case BLOCK_FACE_XM: return 0x2;
+			case BLOCK_FACE_ZP: return 0x3;
+			case BLOCK_FACE_ZM: return 0x4;
+			case BLOCK_FACE_YM: return 0x0;
+			default:            return 0x6;
 		}
 	}
 
@@ -61,6 +61,39 @@ public:
 	{
 		return "step.wood";
 	}
+
+
+	inline static NIBBLETYPE BlockMetaDataToBlockFace(NIBBLETYPE a_Meta)
+	{
+		switch (a_Meta & 0x7)
+		{
+			case 0x1: return BLOCK_FACE_XP;
+			case 0x2: return BLOCK_FACE_XM;
+			case 0x3: return BLOCK_FACE_ZP;
+			case 0x4: return BLOCK_FACE_ZM;
+			case 0x5:
+			case 0x6: return BLOCK_FACE_YP;
+			case 0x7:
+			case 0x0: return BLOCK_FACE_YM;
+			default:
+			{
+				ASSERT(!"Unhandled block meta!");
+				return BLOCK_FACE_NONE;
+			}
+		}
+	}
+
+
+	virtual bool CanBeAt(int a_RelX, int a_RelY, int a_RelZ, const cChunk & a_Chunk) override
+	{
+		NIBBLETYPE Meta;
+		a_Chunk.UnboundedRelGetBlockMeta(a_RelX, a_RelY, a_RelZ, Meta);
+
+		AddFaceDirection(a_RelX, a_RelY, a_RelZ, BlockMetaDataToBlockFace(Meta), true);
+		BLOCKTYPE BlockIsOn; a_Chunk.UnboundedRelGetBlockType(a_RelX, a_RelY, a_RelZ, BlockIsOn);
+
+		return (a_RelY > 0) && (g_BlockIsSolid[BlockIsOn]);
+	}
 } ;