#ifndef CHUNK_H
#define CHUNK_H

#include "../engine/Mesh.h"
#include "../engine/Shader.h"
#include "../engine/DirectRenderer.h"

class Chunk
{
public:
    Chunk(int chunkX, int chunkZ);
    virtual ~Chunk();
    
    void setBlock(int x, int y, int z, unsigned short block);
    unsigned short getBlock(int x, int y, int z);
    
    void renderTick(Shader& shader, DirectRenderer& dr, float lag);
    
    // chunk constants
    static const int PARTION_HEIGHT = 16;
    static const int HEIGHT_PARTIONS = 16;
    
    static const int WIDTH = 16;
    static const int HEIGHT = PARTION_HEIGHT * HEIGHT_PARTIONS;
    static const int DEPTH = 16;
    
    static const int BITMASK_WIDTH = WIDTH - 1;
    static const int BITMASK_HEIGHT = HEIGHT - 1;
    static const int BITMASK_DEPTH = DEPTH - 1;
private:
    void buildChunk(int partionY);
    
    int chunkX;
    int chunkZ;
    
    unsigned short blocks[HEIGHT][WIDTH][DEPTH];
    bool dirty[HEIGHT_PARTIONS];
    ChunkMesh* mesh;
};

#endif