public void renderSpecial(int xp, int yp, int size, int value){
		xp -= xOffset;
		yp -= yOffset;
		
		for (int y = yp; y < size + yp; y++){
			for (int x = xp; x < size + xp; x++){
				if(x != -1 && y != -1 ){
					if(x + y * width < pixels.length )pixels[x + y * width] = pixels[x + y * width] + value ;
					
				}
			}
		}
	}