#ifndef CHUNK_H
#define CHUNK_H
#include <vector>
#include "math.hpp"
#include <stdio.h>
#include <ostream>
#include "block.hpp"
struct ChunkIndex{
	int x;
	int y;
	int z;
	ChunkIndex();
	ChunkIndex(int ,int , int);
	ChunkIndex(Vector3f pos);
	ChunkIndex(Vector3i pos);
	bool operator!=(ChunkIndex);
	std::ostream& operator<<(std::ostream &out);
	void Write(FILE* f);
	void Read(FILE* f);
};
class Chunk{
	private:
	unsigned int EBO,VBO,VAO;

	std::vector<float> vertices;
	std::vector<int> indices;
	char blocks[16*16*16];
	
	public:	
	bool checkInvalid();
	Chunk();
	void Draw(int texture);
	ChunkIndex index;
	void setBlock(int x,int y,int z,BlockID block);
	BlockID getBlock(int x,int y,int z);
	void Generate();
	
	void createMesh();
	void deleteMesh();
	bool read(FILE* f,ChunkIndex chunkIndex); 
	bool Write(FILE* f,ChunkIndex chunkIndex); 
};
void addFaceIndicesAndVertices(int block,int face, Vector3f pos,
	std::vector<int> &indices,std::vector<float> &vertices);

#endif