private List<HantoCell> checkAdjacentCells(HantoCell cell)
	{
		List<HantoCell> emptyCells = new ArrayList<HantoCell>();
		int x = cell.getX();
		int y = cell.getY();
		
		
		if (!isCellOccupied(x, y + 1)){
			emptyCells.add(new HantoCell(x, y+1));
		} if (!isCellOccupied(x + 1, y)){
			emptyCells.add(new HantoCell(x + 1, y));
		} if (!isCellOccupied(x - 1, y)){
			emptyCells.add(new HantoCell(x - 1, y));
		} if (!isCellOccupied(x, y - 1)){
			emptyCells.add(new HantoCell(x, y -1));
		} if (!isCellOccupied(x + 1, y - 1)){
			emptyCells.add(new HantoCell(x + 1, y - 1));
		} if (!isCellOccupied(x - 1, y + 1)){
			emptyCells.add(new HantoCell(x - 1, y + 1));
		}
		return emptyCells;
	}