/**octet.java by gregvan 
 * RECOMMENDED SIZE: height 400, width 600
 **/

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

public class selfhypnosis2 extends Applet implements Runnable
{
    
int rr,gg,bb,xray;//color variables       
int rq=1; // color up-down counters
int gq=1;
int bq=1;

int x, y; //endpoint locations
int z;
int a;
int zz=1; //endpoint up-down counters
int xx=2;
int yy=3;
int aa=4;
int w=1; //width between lines
int wf=1;
int hh,ii,jj,kk;
String yourWords;       
        Thread    myRunner;
Color cNew = new Color(125, 0, 255);
Color dNew = new Color(0, 0, 0);

        Image     buffer;         
        Dimension appletSize;     
        Graphics  bufferGraphics; 

        public void init()
        {    
        setBackground(Color.black);
        appletSize = this.getSize();     
        buffer = this.createImage(appletSize.width, appletSize.height);
        bufferGraphics = buffer.getGraphics();
	yourWords=getParameter("yw");
	if (yourWords==null){yourWords="";}

        }

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

        public void run()
        {
            Thread  executingThread;                   
            executingThread = Thread.currentThread();

            while (myRunner == executingThread)
            {
               //new random numbers to start animation
	       x=(int)(Math.random() *400);
		x=x-200;
               y=(int)(Math.random() *300);
		y=y-150;
               z=(int)(Math.random() *500);
		z=z-250;
               repaint();
               try
               {Thread.sleep(1000);}
               catch(InterruptedException e) {} 

               while (myRunner != null)
               {
                  repaint(); 
                  try
                  {Thread.sleep(100); }
                  catch (InterruptedException e) {}
               }  
           } 
        }

       // make sure the animation really stops when exiting webpage
        public void stop()
        { 
          if (myRunner != null)
             { myRunner = null; }
        }

        //used to prevent blinking graphics....
        public void update(Graphics g)
        {paint(g);}

        public void paint(Graphics g)
        {
	w=w+wf;
	if (w>200){wf=-1;}
	if (w<2){wf=3;}
             //for loop to paint 7 images before sleeping .1 second     
        for (int i=0;i<7;i++)
          {
             //color changer up-down counters
           rr=rr+rq;
           if(rr>251){rq=-1;}
           if(rr<4){rq=1;}

           gg=gg+gq;
           if(gg>252){gq=-2;}
           if(gg<3){gq=2;}

           bb=bb+bq;
           if(bb>250){bq=-3;}
           if(bb<5){bq=3;}

	   xray=xray+16;
	if(xray>255){xray=0;}
	

           //move the endpoints of the lines
           //up-down counters     

           z=z+zz;
           if(z>400){zz=-1;}
           if(z<-400){zz=4;}

           a=a+aa;
           if(a>300){aa=-2;}
           if(a<-300){aa=1;}

           x=x+xx;
           if(x>350){xx=-3;}
           if(x<-350){xx=1;}

           y=y+yy;
           if(y>250){yy=-1;}   
           if(y<-250){yy=5;} 
hh=hh+1;
if (hh>50){hh=-50;}
ii=ii+1;
if(ii>60){ii=-60;}
jj=jj-1;
if(jj<-80){jj=80;}
kk=kk+1;
if(kk>100){kk=-100;}
        for (int i2=-w;i2<1;i2=i2+w)
        {
	x=x+i2+i2;
	y=y-i2-i2;
	a=a-i2;
	z=z+i2;
           //apply the new numbers for color
        Color cNew = new Color(rr, gg, bb);
        bufferGraphics.setColor(cNew);  
          //draw the lines set 1
        bufferGraphics.drawLine(300+ x,200+ y,300+ z,200+a);
        bufferGraphics.drawLine(300- x,200- y,300- z,200-a);
     
        bufferGraphics.drawLine(300+ x,200- y,300+ z,200-a);
        bufferGraphics.drawLine(300- x,200+y,300- z,200+a); 
	   //draw the lines set 2
        bufferGraphics.drawLine(300+ y,200+ x,300+ a,200+z);
        bufferGraphics.drawLine(300- y,200- x,300- a,200-z);
     
        bufferGraphics.drawLine(300+ y,200- x,300+ a,200-z);
        bufferGraphics.drawLine(300- y,200+x,300- a,200+z); 
	
if(w>100){
      
          //black and white lines     
     Color dNew = new Color(bb, bb, bb);
     bufferGraphics.setColor(dNew);    
}
else
  {
 Color dNew = new Color(gg, bb, xray);
  bufferGraphics.setColor(dNew);      
}


         //draw the black and white lines in a slightly
         //different location...
     x=x+hh;
     y=y+ii;
     z=z-jj;
     a=a-kk;
     
          //draw the lines set 1
        bufferGraphics.drawLine(300+ x,200+ y,300+ z,200+a);
        bufferGraphics.drawLine(300- x,200- y,300- z,200-a);
     
        bufferGraphics.drawLine(300+ x,200- y,300+ z,200-a);
        bufferGraphics.drawLine(300- x,200+y,300- z,200+a); 
	   //draw the lines set 2
        bufferGraphics.drawLine(300+ y,200+ x,300+ a,200+z);
        bufferGraphics.drawLine(300- y,200- x,300- a,200-z);
     
        bufferGraphics.drawLine(300+ y,200- x,300+ a,200-z);
        bufferGraphics.drawLine(300- y,200+x,300- a,200+z); 
       
     x=x-hh; //move ends back to where the were before 
     y=y-ii;
     z=z+jj;
     a=a+kk;  
     

        x=x-i2-i2; // do the opposite to restore...
	y=y+i2+i2;
	a=a+i2;
	z=z-i2;
     } //i2 loop end

// draw a black diamond in the center to improve contrast
Color eNew = new Color(0, 0, 0);
  bufferGraphics.setColor(eNew);      
 bufferGraphics.drawLine(300+ x-y,200,300,200+x-y);
 bufferGraphics.drawLine(300+ x-y,200,300,200-x+y);
  bufferGraphics.drawLine(300- x+y,200,300,200+x-y);
 bufferGraphics.drawLine(300- x+y,200,300,200-x+y);

//message...
Color fNew = new Color(bb,rr, gg);
 bufferGraphics.setColor(fNew);
   bufferGraphics.setFont(new Font("Serif",Font.BOLD,50));
bufferGraphics.drawString (""+yourWords,40,225);
 

       
    }//end of for loop i
     // move the entire buffer onto the display screen and change
     // pixels that are a different color...
      g.drawImage(buffer, 0, 0, this);
    }
} // end of the program...