- BlockType::Faces slab_fill = { false, false, false, true, false, false };
- BlockType::Faces stair_fill = { true, false, false, true, false, false };
+ BlockType::Faces slab_fill = { false, true, false, false, false, false };
+ BlockType::Faces stair_fill = { false, true, false, false, false, true };