#include "chunk.h"
#include "_internal/private_chunk.h"

#include "chunk_mesh_builder.h"

#include <stdlib.h>

chunk_struct* initialize_chunk(struct chunk_position_struct position_in_world) {
        chunk_struct *chunk = malloc(sizeof(chunk_struct));

        if ( chunk == NULL )
        {
                return NULL;
        }

        _initialize_chunk(chunk, position_in_world);
        return chunk;
}

void destroy_chunk(struct chunk_struct* chunk)
{
        destroy_chunk_mesh(chunk);
        _free_chunk_data(chunk);
}

uint32_t index_chunk(int32_t x, int32_t y, int32_t z) {
        return (uint32_t)(x + y * chunk_size + z * chunk_size * chunk_size);
}

chunk_position_struct offset_chunk_position(struct chunk_position_struct origin_to_offset,
                                            int32_t x_offset,
                                            int32_t y_offset,
                                            int32_t z_offset)
{
        chunk_position_struct new_chunk_coordinate;
        new_chunk_coordinate.x = origin_to_offset.x + x_offset;
        new_chunk_coordinate.y = origin_to_offset.y + y_offset;
        new_chunk_coordinate.z = origin_to_offset.z + z_offset;

        return new_chunk_coordinate;
}