bool blocksOverhead = false;
		for (int x = x1; x < x2 + 1; ++x)
			for (int y = selectedLevels[x - x1] - 1; y >= 0; --y)
			{
				if (tiles[x][y] == 1)
				{
					blocksOverhead = true;
					if (blocksOverhead)
						break;
				}
				if (blocksOverhead)
					break;
			}