public class Circle
{
  private float _xoff, _yoff;
  private PVector _center;
  private float _radius;
  private PVector _intersectOne;
  private PVector _intersectTwo;

  public Circle( PVector loc, float r )
  {
    _radius = r;
    _center = loc;
    _xoff = _center.x;
    _yoff = _center.y;
  }

  public void update( boolean render)
  {
    _xoff += random(0.0001, 0.009);     
    _yoff += random(0.0001, 0.009);  

    _center.x = noise(_xoff) * width+50;
    _center.y = noise(_yoff) * height+50;

    if( render )
    {
      noFill();
      stroke( 0x05FF6600 );
      ellipse( _center.x, _center.y, _radius, _radius );      
    }

  }

  public PVector getCenter()
  {
    return _center;
  }
  public float getRadius()
  {
    return _radius * 0.5;
  }
}