public void addStartAngle(int x) {
		if(x < 0) {
			if(startAngle == 0)
				startAngle = 359;
			else
				startAngle = startAngle - 1;
		}
		else {
			if(x > 0) {
				if(startAngle == 359)
					startAngle = 0;
				else
					startAngle = startAngle + 1;
			}
		}
	}