public String scanQuadrantNext(int v, int h, Direction direction) {
		String result = null;

		switch (direction) {
		case UP:
			if (v > 0) {
				result = scanQuadrant(v - 1, h);
			}
			break;
		case DOWN:
			if (v < 8) {
				result = scanQuadrant(v + 1, h);
			}
			break;
		case LEFT:
			if (h > 0) {
				result = scanQuadrant(v, h - 1);
			}
			break;
		case RIGHT:
			if (h < 8) {
				result = scanQuadrant(v, h + 1);
			}
			break;
		}
		return result;
	}