// chunkStructures.h

#ifndef CHUNK_STRUCTURES_H
#define CHUNK_STRUCTURES_H

#include "raylib.h"

#define CHUNK_SIZE_X 16
#define CHUNK_SIZE_Y 256
#define CHUNK_SIZE_Z 16


typedef struct {
    int type; // 0 = air, 1 = dirt, etc.
} Block;

typedef struct {
    Block blocks[CHUNK_SIZE_X][CHUNK_SIZE_Y][CHUNK_SIZE_Z];
    Mesh mesh; // Owned by the chunk, valid only at runtime
    bool hasMesh; //
    bool hasChanged; // Flag that determines if chunk needs to be saved on unload
    int x;
    int z;
} Chunk;

// 6 directions for checking neighbors: +/-X, +/-Y, +/-Z
static const int faceOffsets[6][3] = {
    { -1,  0,  0 }, // left
    {  1,  0,  0 }, // right
    {  0, -1,  0 }, // bottom
    {  0,  1,  0 }, // top
    {  0,  0, -1 }, // back
    {  0,  0,  1 }  // front
};

// Function to check if a face of a block is exposed.
int IsBlockFaceExposed(Chunk *chunk, int x, int y, int z, int dir);

// Function that places a tree dumbly.
void PlaceTreeAt(Chunk *chunk, int x, int y, int z) ;

void InitChunk(Chunk *chunk, int chunkX, int chunkZ);

#endif