/* in main.cpp */
screen = SDL_SetVideoMode(SCREEN_WIDTH, SCREEN_HEIGHT, 24, SDL_HWSURFACE | SDL_DOUBLEBUF);


/* And this is the Blitting proccess */
/* in Layer.cpp */

int cols;
int rows;
	
	for (int ii = 0; ii <= this->vectorTiles.size() - 1; ii++)
	{
	    cols = (ii % this->GetColsLayer());
            rows = (ii / this->GetRowsLayer());

	    PlotX = (cols*TILE_WIDTH/2)-(rows*(TILE_WIDTH/2));
	    PlotY = ((rows*(TILE_HEIGHT/2))+(cols*(TILE_HEIGHT/2)));
			
			SDL_Rect rect_dest;
			rect_dest.w = 0;
			rect_dest.h = 0;
			rect_dest.x = PlotX;
			rect_dest.y = PlotY;

			if ((PlotX  >= rect->x)&&(PlotX <= rect->x+rect->w)&&(PlotY + TILE_HEIGHT >=rect->y)&&(PlotY<=rect->y+rect->h))
			{
				
				indexImage = this->vectorTiles[(rows * this->GetColsLayer()) + cols]->GetImageNumber();
				
				SDL_Surface *imageTile = this->TileSet->GetTile(indexImage);
				SDL_BlitSurface(imageTile, NULL, screen, &rect_dest);
				SDL_FreeSurface(imageTile);
			}

}

SDL_Surface* tileSet::GetTile(int Index){    Uint32 rmask, gmask, bmask, amask;    	#if SDL_BYTEORDER == SDL_BIG_ENDIAN	    rmask = 0xff000000;	    gmask = 0x00ff0000;	    bmask = 0x0000ff00;	    amask = 0x000000ff;	#else	    rmask = 0x000000ff;	    gmask = 0x0000ff00;	    bmask = 0x00ff0000;	    amask = 0xff000000;	#endif    		SDL_Surface *surface = SDL_CreateRGBSurface(SDL_HWSURFACE | SDL_SRCCOLORKEY, this->getWidthImageTiles(), this->getWidthImageTiles(), 32, rmask, gmask, bmask, amask);		SDL_Rect rect_origen;	rect_origen.w = this->getWidthImageTiles();	rect_origen.h = this->getHeightImageTiles();	rect_origen.y = (Index / this->getImageCols()) * rect_origen.h;	rect_origen.x = (Index % this->getImageRows()) * rect_origen.w;			SDL_BlitSurface(this->m_image_tiles, &rect_origen, surface, NULL);		return surface;	}