import java.awt.*;
import java.awt.event.*;
import java.applet.Applet;
public class Kukkumine4 extends Applet 
              implements MouseListener, Runnable{
  int x=100;
  double y=100;
  int alaServ=300;
  int r=5;
  double samm=1;
  double sammuMuutus=0.1;
  Color[] varvid={Color.green, Color.blue, Color.black, Color.pink};
  int varviNr=0;
  public Kukkumine4(){
    addMouseListener(this);
    new Thread(this).start();
  }
  public void paint(Graphics g){
      g.setColor(varvid[varviNr]);
      g.drawOval(x-r, (int)y-r, 2*r, 2*r);
  }
  public void run(){
     while(true){
       try{Thread.sleep(100);} catch(Exception viga){}
       if(y<alaServ){
          y=y+samm;
          samm+=sammuMuutus;
       } else {
         samm=-Math.abs(samm);
         samm=(int)(samm*0.9); //kiirus väiksemaks
         y=alaServ-1; //maa seest välja
         varviNr++;
         if(varviNr>=varvid.length){varviNr=0;}
       }   
       repaint();
     }
  }
  public void mousePressed(MouseEvent e){
    if(e.getX()>x-r && e.getX()<x+r && e.getY()>y-r && e.getY()<y+r){
       x=(int)(getWidth()*Math.random());
       y=(int)(100*Math.random());
       samm=1;
       sammuMuutus=0.1;
    }
  }
  public void mouseReleased(MouseEvent e){}
  public void mouseClicked(MouseEvent e){}
  public void mouseEntered(MouseEvent e){}
  public void mouseExited(MouseEvent e){}

  public static void main(String[] argumendid){
    Frame f=new Frame();
    f.add(new Kukkumine4());
    f.setSize(200, 200);
    f.setVisible(true);
  }
}