* @param a
*/
public ShapesFountain(Creator creator,Point p,double a,float impulseMag) {
super(creator, p,a);
impulse=new Vec2((float)(impulseMag*Math.cos(-a)),(float)(impulseMag*Math.sin(-a)));
timer=new RepeatingTimer(new TimerTask(){
@Override
public void doTask() {
PhysicalShape shape;