import java.applet.Applet;
import java.awt.*;
import java.awt.event.*;
public class Kaugusemoot extends Applet implements MouseListener, MouseMotionListener{
  	int suurus=40;
	  int xd[] = new int[100];
	  int yd[] = new int[100];
	  int kokku=0;
	 int hx;
 	 int hy;
  public Kaugusemoot(){
	addMouseListener(this);
	addMouseMotionListener(this);
}

  public void mouseClicked(MouseEvent e){}
  public void mouseEntered(MouseEvent e){}
  public void mouseExited(MouseEvent e){}
  public void mousePressed(MouseEvent e){
  Graphics g=getGraphics();
	int x=e.getX();
	int y=e.getY();
	xd[kokku]=x;
	yd[kokku]=y;
	kokku++;
	g.setColor(Color.green);
	g.fillOval(x-suurus/2, y-suurus/2, suurus, suurus);	
	}
  public void mouseReleased(MouseEvent e){}
  public void mouseMoved(MouseEvent e){
  	 Graphics g=getGraphics();
	int x=e.getX();
	int y=e.getY();
	int i=0;
	while(i<kokku){
	hx=x;
	hy=y;
	if ((Math.abs(xd[i]-hx)<100)&&(Math.abs(yd[i]-hy)<100)){ 
	 g.setColor(Color.red);
	 g.fillOval(xd[i]-suurus/2, yd[i]-suurus/2, suurus, suurus);	
		}
		else { g.setColor(Color.green);
	 g.fillOval(xd[i]-suurus/2, yd[i]-suurus/2, suurus, suurus);	
			}
		i++;
		}
  }
  public void mouseDragged(MouseEvent e){}
  
  public  static void main(String argumendid[]){
  Frame f=new Frame("Pall");
  f.add(new Kaugusemoot());
  f.setSize(400, 400);
  f.setBackground(Color.black);
  f.setVisible(true);
  }
}