.// Atsuro Seto (C) 1998 <atsuro@cc.rim.or.jp>
// http://www.cc.rim.or.jp/~atsuro/

/*<APPLET code=m.class width=300 height=300></APPLET>*/

import java.applet.*;
import java.awt.*;
import java.awt.event.*;

public class m extends Applet implements Runnable, MouseListener, MouseMotionListener{

Thread thread;
Image image=null;
Graphics gra,grai;
int i, prevx, prevy, oldx, oldy, x, y, newx, newy;
boolean amI=false;

public void start(){if (thread==null){thread=new Thread(this);thread.start();}}
public void stop(){thread=null;}

public void init()
{ setBackground(Color.black);
image=createImage(getSize().width,getSize().height);
grai=image.getGraphics();
gra=getGraphics();
grai.setColor(Color.black);
grai.fillRect(0,0,getSize().width,getSize().height);
addMouseMotionListener(this);
addMouseListener(this);
}
public void mousePressed(MouseEvent e) {}
public void mouseReleased(MouseEvent e) {
amI=!amI;
e.consume();
}
public void mouseDragged(MouseEvent e) {}
public void mouseMoved(MouseEvent e) {}
public void mouseEntered(MouseEvent e) {}
public void mouseExited(MouseEvent e) {}
public void mouseClicked(MouseEvent e){}

public void run() {
prevx=(int)(getSize().width*Math.random());
prevy=(int)(getSize().height*Math.random());
while(true){
for(i=0; i<255; i++){
x=(int)(Math.abs((getSize().width*Math.random())/1));
y=(int)(Math.abs((getSize().height*Math.random())/1));
grai.setColor(new Color((int)(i*Math.random()),(int)(i*Math.random()), (int)(i*Math.random())));
if(i>=220){grai.setXORMode(new Color((int)(i*Math.random()),(int)(i*Math.random()), (int)(i*Math.random())));}
else grai.setPaintMode();

if(!amI)draw(prevx,prevy,x,y);
prevx=x;prevy=y;
try {Thread.sleep(30);} catch (InterruptedException e){}
}
}
}
void draw(int prevx, int prevy, int x, int y) {
oldx=prevx; oldy=prevy; newx=x; newy=y;
grai.drawLine(oldx,oldy,newx,newy);
grai.drawLine(getSize().width-oldx,oldy,getSize().width-newx,newy);
grai.drawLine(oldx,getSize().height-oldy,newx,getSize().height-newy);
grai.drawLine(getSize().width-oldx,getSize().height-oldy,getSize().width-newx,getSize().height-newy);
grai.drawLine(oldy,oldx,newy,newx);
grai.drawLine(getSize().width-oldy,oldx,getSize().width-newy,newx);
grai.drawLine(oldy,getSize().height-oldx,newy,getSize().height-newx);
grai.drawLine(getSize().width-oldy,getSize().height-oldx,getSize().width-newy,getSize().height-newx);
gra.drawImage(image,0,0,this);
}
public void paint(Graphics gra) {
gra.drawImage(image,0,0,this);}
}