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-rw-r--r--source/Blocks/BlockSlab.h13
1 files changed, 12 insertions, 1 deletions
diff --git a/source/Blocks/BlockSlab.h b/source/Blocks/BlockSlab.h
index f34f42bae..dd80da27e 100644
--- a/source/Blocks/BlockSlab.h
+++ b/source/Blocks/BlockSlab.h
@@ -35,7 +35,18 @@ public:
NIBBLETYPE Meta = (NIBBLETYPE)(a_Player->GetEquippedItem().m_ItemDamage & 0x07);
switch (a_BlockFace)
{
- case BLOCK_FACE_TOP: a_BlockMeta = Meta & 0x7; break; // Always bottom half of the slab when placing on top of something
+ case BLOCK_FACE_TOP:
+ {
+ if (a_World->GetBlock(a_BlockX, a_BlockY - 1, a_BlockZ) == E_BLOCK_STONE_SLAB)
+ {
+ a_World->FastSetBlock(a_BlockX, a_BlockY - 1, a_BlockZ, E_BLOCK_DOUBLE_STONE_SLAB, Meta);
+ a_BlockType = E_BLOCK_AIR;
+ }
+ else
+ {
+ a_BlockMeta = Meta & 0x7; break; // Always bottom half of the slab when placing on top of something
+ }
+ }
case BLOCK_FACE_BOTTOM: a_BlockMeta = Meta | 0x8; break; // Always top half of the slab when placing on bottom of something
case BLOCK_FACE_EAST:
case BLOCK_FACE_NORTH: