#ifndef HANDMADE_TILE_H_SENTRY
#define HANDMADE_TILE_H_SENTRY

typedef struct tile_map_difference {
    F32 dX;
    F32 dY;
    F32 dZ;
} tile_map_difference;

typedef struct tile_map_position {
    U32 AbsTileX;
    U32 AbsTileY;
    U32 AbsTileZ;

    /* NOTE: X and Y relative to tile center. */
    F32 OffsetX;
    F32 OffsetY;
} tile_map_position;

typedef struct tile_chunk_position {
    U32 TileChunkX;
    U32 TileChunkY;
    U32 TileChunkZ;

    U32 RelTileX;
    U32 RelTileY;
} tile_chunk_position;

typedef struct tile_chunk {
    U32 *Tiles;
} tile_chunk;

typedef struct tile_map {
    U32 ChunkShift;
    U32 ChunkMask;
    U32 ChunkDim;

    F32 TileSideInMeters;

    /* TODO: Real sparseness. */
    U32 TileChunkCountX;
    U32 TileChunkCountY;
    U32 TileChunkCountZ;

    tile_chunk *TileChunks;
} tile_map;

#endif