gistfile1.txt

-(void)updateDrawingWithCount:(int)count {
     int degree;
     switch (self.beat) {
          case beat1:
               degree = 90;
               break;
          case beat2:
               degree = 180;
               break;
          case beat3:
               degree = 270;
               break;
          case beat4:
               degree = 360;
               break;
          default:
               break;
     }
     
     
     
     
     
     UIBezierPath* aPath = [UIBezierPath bezierPath];
     [aPath moveToPoint:self.center];
     [aPath addArcWithCenter:self.center
                      radius:20
                  startAngle:degreesToRadians(-90)
                    endAngle:degreesToRadians(degree-90)
                   clockwise:YES];
     self.path = aPath.CGPath;
     
     
     
     self.beat++;
     
     if (self.beat > beat4) {
          self.beat = beat1;
     }
     
}