#include "MapBlock.h"



int mapBlock[65536];

MapBlock::MapBlock()
{

}

// TODO; Make this function work with global coordinates and move it to BlockManager
void MapBlock::addNode(int id, int meta, int x, int y, int z)
{
    mapBlock[256 * y + z * 16 + x] = id;
}




MapBlock mapBlocks[16][16];

BlockManager::BlockManager()
{

}

int BlockManager::getNodeAt(int x, int y, int z)
{
    // Math explanation for future reference:
    // The x and z coordinates need to be have block.[AXIS] * 16 subtracted from them
    // so that the coordinates passed to the function are local block coordinates instead
    // of global node coordinates (e.g. 1, and not 17)

    if(x < 0 || y < 0 || z < 0)
    {
        return 0;
    }

    Position2D block = BlockUtilities::getBlockFromNodeCoordinates(x, z);

    int localX = x - block.x * 16;
    int localZ = z - block.z * 16;

    return mapBlocks[block.x][block.z].mapBlock[256 * y + localZ * 16 + localX];
}

bool BlockManager::isAir(int x, int y, int z)
{
    return getNodeAt(x, y, z) == 0;
}




BlockUtilities::BlockUtilities()
{

}

Position2D BlockUtilities::getBlockFromNodeCoordinates(int x, int z)
{
    Position2D pos2d;
    pos2d.x = floor(x / 16);
    pos2d.z = floor(z / 16);
    return pos2d;
}