import java.awt.event.*;
import javax.swing.JMenuItem;

public class EditMenuListener implements ActionListener {
   private MyWorld  world;
   public EditMenuListener (MyWorld  w){
      world = w;
   }
   public void actionPerformed(ActionEvent e) {
      JMenuItem menuItem = (JMenuItem)(e.getSource());
      String text = menuItem.getText();
      if (text.equals("Ball")) 
         world.addElement(new Ball(1.0, 0.1, new Vector2D(2,1), new Vector2D(0.5, 0.5)));
   }
}