#ifndef CHUNK_H
#define CHUNK_H

#include <stdbool.h>
#include <GL/gl.h>
#include <SDL2/SDL.h>
#include <SDL2/SDL_image.h>
#include "utils.h"

typedef struct {
    GLuint tid;
    SDL_Surface *surface;
    int type;
} Type_surface;

typedef enum {
    BLOCKTYPE_AIR,
    BLOCKTYPE_GRASS,
    BLOCKTYPE_DIRT,
    BLOCKTYPE_STONE,
    BLOCKTYPE_COUNT,
} Block_type;

typedef struct
{
    Block_type type;
    bool visible;
} Block;

typedef struct {
    vec3f start_pos;
    Block blocks[CHUNK_MAX_X][CHUNK_MAX_Y][CHUNK_MAX_Z];
    GLuint id;
} Chunk;

typedef struct
{
    unsigned int chunk_count;
    Chunk *chunks;
    Type_surface *textures;
    unsigned int texture_count;
} ChunkManager;

bool chunk_is_block_neighboring_block(Chunk* chunk, vec3i pos);
void chunk_set_blocks_visibility(Chunk* chunk);
void chunk_create_displayl(ChunkManager *cm, Chunk *chunk);
void chunk_render(Chunk* chunk);
void chunk_update(ChunkManager* cm, Chunk *chunk);
void draw_cube(ChunkManager *cm, Block_type type, float x, float y, float z);
bool is_block(Block b);
int chunk_get_current_chunk_index(ChunkManager *cm, vec3f pos);

#endif