#include "CTileMap.h"

CTileMap::CTileMap(void)
{
	CTileMap(0);
}

CTileMap::CTileMap(int aMapIndex)
{
	mCurrentMap = aMapIndex;
	mMapImage = new CSurface(CGameConstants::MAP_WIDTH * CGameConstants::TILE_WIDTH, CGameConstants::MAP_HEIGHT * CGameConstants::TILE_HEIGHT); 
	loadMap(mCurrentMap);
}

CTileMap::~CTileMap(void)
{
	destroy();
}

void CTileMap::destroy(void)
{
	delete mMapImage;
	mMapImage = NULL;
}

void CTileMap::loadMap(int aMap)
{
	mCurrentMap = aMap;

	FILE *f;
	int c;

	// Load the map.
	if ((f = fopen("assets/data/maps/map001.bin", "rb")) != NULL) 
	{
		c = fread(mMap, CGameConstants::MAP_WIDTH * CGameConstants::MAP_HEIGHT, 1, f);
		fclose(f);
	}
	else
	{
		fprintf(stdout, "Unable to read map!\n");
	}

	fprintf(stdout, "mMap[15] = %d\n", mMap[0]);
	fprintf(stdout, "mMap[62] = %d\n", mMap[62]);
	fprintf(stdout, "mMap[63] = %d\n", mMap[63]);
	fprintf(stdout, "mMap[64] = %d\n", mMap[64]);

	CSurface *tilesImage = new CSurface("assets/images/tiles/tileset0.png");

	// Dibujar el mapa tileado.
	for (int i=0; i < CGameConstants::MAP_HEIGHT; i++) 
	{
		for (int j=0; j < CGameConstants::MAP_WIDTH; j++) 
		{
			int tile = mMap[i*CGameConstants::MAP_WIDTH+j];

			// Calculo la ubicación del tile en la imagen de tiles.
			int xtile = (tile % CGameConstants::TILE_IMAGE_WIDTH) * CGameConstants::TILE_WIDTH;
			int ytile = (tile / CGameConstants::TILE_IMAGE_WIDTH) * CGameConstants::TILE_HEIGHT;

			// Calculo de la posición del tile en pantalla.
			int x = j * CGameConstants::TILE_WIDTH;
			int y = i * CGameConstants::TILE_HEIGHT;

			CSurface::drawImage(mMapImage, tilesImage, x, y, xtile, ytile, CGameConstants::TILE_WIDTH, CGameConstants::TILE_HEIGHT);  
			//CSurface::drawImage(mMapImage, tilesImg, x, y, xtile, ytile, 72, 72);  
		}
	}

	delete tilesImage;
	tilesImage = NULL;
}

void CTileMap::draw(CSurface *aImgDst, int aX, int aY)
{
	CSurface::drawImage(aImgDst, mMapImage, aX, aY);
}

int CTileMap::getTile(int aTileX, int aTileY)
{
	return mMap[aTileY*CGameConstants::MAP_WIDTH+aTileX];
}

bool CTileMap::isWalkable(int aTileX, int aTileY)
{
	int tile = mMap[aTileY*CGameConstants::MAP_WIDTH+aTileX];
	return (tile == 2 || tile == 4 || tile == 1);
}