private List<TileButton> getNeighbours(int x, int y) {
		List<TileButton> neighbours = new ArrayList<TileButton>();
		
		for(int j = y - 1; j <= y + 1; j++) {
			for(int i = x - 1; i <= x + 1; i++) {
				if(j == y && i == x) {
					continue;
				} else if(j < 0 || i < 0 || !(j < this.mineFieldGrid.getHeight())
						|| !(i < this.mineFieldGrid.getWidth())) {
					continue;
				} else {
					neighbours.add(buttons[j][i]);
				}
			}
		}
		return neighbours;
	}