public ArrayList<Point> getAllFreeSpots(){
		ArrayList<Point> result = new ArrayList<Point>();
		for(int x=0; x<level.length; x++){
			for(int y=0; y<level[0].length; y++){
				if(level[x][y] == null){
					result.add(new Point(x, y));
				}
			}
		}
		
		return result;
	}