// 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, bw, 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);}
}