// Lars Sorensen TYJava in 21 days
// excode from pg 206, COMMENTSCOMMENTS
//
//  SHELL FOR ANIMATION APPLETS
//

  import java.awt.Graphics;
  import java.awt.Image;
  import java.awt.Color;
 
  public class neko extends java.applet.Applet
         implements Runnable
     {
	
   	Image nekopics[] = new Image[9];
	Image currentimg;
	Thread runner;
	int xpos;
	int ypos = 50;

	public void init()
	 {
	   String nekosrc[] = { "right1.gif", "right2.gif",
	"stop.gif", "yawn.gif", "scratch1.gif", "scratch2.gif",
	"sleep1.gif", "sleep2.gif", "awake.gif" };

	  for ( int i = 0; i < nekopics.length; i++ )
	   {
	     nekopics[i] = getImage(getDocumentBase(),"/images/" + nekosrc[i]);
 	   }
         } // end of init


      public void start()
        {
	  if (runner == null )
            {
              runner = new Thread(this);
              runner.start();
            }
        } // end of start

      public void stop()
        {
	  if (runner != null )
            {
              runner.stop();
              runner = null;
            }
        } // end of stop

       public void run()
         {
	
        while(true)
	   {
    
           setBackground(Color.white);

	   // run from one side to the middle....
	   nekorun(0, this.size().width /2 );

	  // stop and pause
	    currentimg = nekopics[2];
	    repaint();
	    pause(1000);

	  // yawn
	    currentimg = nekopics[3];
	    repaint();
	    pause(1000);

	  // scratch four times
	    nekoscratch(4);

	  // sleep for 5 turns
	    nekosleep(5);

  	  // wake up and run off
	    currentimg = nekopics[8];
	    repaint();
		pause(500);
		nekorun(xpos, this.size().width + 10 );

          } // end of while

         } // end of run

	void nekorun(int start, int end)
          {
	    for (int i = start; i < end; i +=10)
              {
		this.xpos = i;
		// swap images
		if (currentimg == nekopics[0] ) currentimg = nekopics[1];
		else if (currentimg == nekopics[1] ) currentimg = nekopics[0];
		else currentimg = nekopics[0];
		
		repaint();
		pause(150);
	      }	
           } // end of nekorun

	void nekoscratch(int numtimes)
	  {
	    for (int i = numtimes; i > 0; i-- )
	      {
		currentimg = nekopics[4];
		repaint();
		pause(150);	
		currentimg = nekopics[5];
		repaint();
		pause(150);	
	      }
	  } // end of nekoscratch


	void nekosleep(int numtimes)
	  {
	    for (int i = numtimes; i > 0; i-- )
	      {
		currentimg = nekopics[6];
		repaint();
		pause(250);	
		currentimg = nekopics[7];
		repaint();
		pause(250);	
	      }
	  } // end of nekosleep

	void pause(int time)
	  {
	    try { Thread.sleep(time); }
	    catch (InterruptedException e ) { }
          } // end of pause

	public void paint(Graphics g)
          {
            g.drawImage(currentimg, xpos, ypos, this);
          } // end of paint

   } // end of class neko