1 files changed, 3 insertions, 0 deletions
diff --git a/tile.h b/tile.h
index 6943f4a0e..cb0fa1e03 100644
--- a/tile.h
+++ b/tile.h
@@ -20,6 +20,9 @@ typedef enum TileType {
 void SetMapExtraBits(TileIndex tile, byte flags);
 uint GetMapExtraBits(TileIndex tile);
 
+uint GetTileSlope(TileIndex tile, uint *h);
+uint GetTileZ(TileIndex tile);
+
 static inline uint TileHeight(TileIndex tile)
 {
 	assert(tile < MapSize());