Day 35 complete.

handmade_tile.h

@@ -4,6 +4,7 @@
 typedef struct tile_map_position {
     U32 AbsTileX;
     U32 AbsTileY;
+    U32 AbsTileZ;
 
     /* NOTE: Tile-relative X and Y. */
     F32 TileRelX;
@@ -13,6 +14,7 @@ typedef struct tile_map_position {
 typedef struct tile_chunk_position {
     U32 TileChunkX;
     U32 TileChunkY;
+    U32 TileChunkZ;
 
     U32 RelTileX;
     U32 RelTileY;
@@ -28,13 +30,13 @@ typedef struct tile_map {
     U32 ChunkDim;
 
     F32 TileSideInMeters;
-    S32 TileSideInPixels;
-    F32 MetersToPixels;
 
+    /* TODO: Real sparseness. */
     U32 TileChunkCountX;
     U32 TileChunkCountY;
+    U32 TileChunkCountZ;
 
     tile_chunk *TileChunks;
 } tile_map;
 
-#endif
+#endif