#include <cstdint>

#define BLOCK_AIR             0
#define BLOCK_STONE           1
#define BLOCK_GRASS           2
#define BLOCK_DIRT            3
#define BLOCK_GRAVEL          4
#define BLOCK_ASPHELT         5
#define BLOCK_BARRIER         6
#define BLOCK_GRASS_PLANT     7
#define BLOCK_WATER           8
#define BLOCK_SAND            9

#define BTYPE_BLOCK           0
#define BTYPE_RAMP            1
#define BTYPE_PLANT           2
#define BTYPE_FLUID           3

#define DIRECTION_N           0
#define DIRECTION_E           1
#define DIRECTION_S           2
#define DIRECTION_W           3

struct Block
{
  uint8_t id=0;
  uint8_t type=0;
  uint8_t direction=0;
};

struct BlockFaceMap
{
  bool t, b, n, e, s, w;
};

struct BlockTextures
{
  int t, b, n, e, s, w;
};

struct BlockSettings
{
  bool transparent;
  BlockTextures tex;
};

void blocks_init();
Block make_block(uint8_t id, uint8_t type=0, uint8_t direction=0);
void render_block(Block block, int x, int y, int z, BlockFaceMap fm);
void unbind_block_texture();
void bind_block_texture();
BlockSettings blockGetSettings(int id);
void render_block_face_here(Block block);
double get_fluid_motion(int x, int z);