#ifndef HANDMADE_TILE_H_SENTRY
#define HANDMADE_TILE_H_SENTRY

#include "handmade_math.h"

struct tile_map_difference {
    struct v2 d_xy;
    float d_z;
};

struct tile_map_position {
    unsigned int abs_tile_x;
    unsigned int abs_tile_y;
    unsigned int abs_tile_z;

    /* NOTE: X and Y relative to tile center. */
    struct v2 offset;
};

struct tile_chunk_position {
    unsigned int tile_chunk_x;
    unsigned int tile_chunk_y;
    unsigned int tile_chunk_z;

    unsigned int rel_tile_x;
    unsigned int rel_tile_y;
};

struct tile_chunk {
    unsigned int *tiles;
};

struct tile_map {
    unsigned int chunk_shift;
    unsigned int chunk_mask;
    unsigned int chunk_dim;

    float tile_side_in_meters;

    /* TODO: Real sparseness. */
    unsigned int tile_chunk_count_x;
    unsigned int tile_chunk_count_y;
    unsigned int tile_chunk_count_z;

    struct tile_chunk *tile_chunks;
};

#endif