// This example is from the book _Java in a Nutshell_ by David Flanagan.
// Written by David Flanagan.  Copyright (c) 1996 O'Reilly & Associates.
// You may study, use, modify, and distribute this example for any purpose.
// This example is provided WITHOUT WARRANTY either expressed or implied.

package AudioAnimator;

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

public class AudioAnimator extends Animator {
	protected Label  label = new Label("Sound:");
	protected TextField tx = new TextField("", 15);
	protected String soundname;
  
  public volatile SoundPlayer sdPlayer;
  
  public void init() {
    // do Animator initialization first
    super.init();
    this.add(label);
    this.add(tx);

    // look up the name of a sound, and then
    // load and play it (just once), in a separate thread.
    soundname = this.getParameter("sound");
    tx.setText(soundname);
  }
  public void start() {
  	super.start();
    sdPlayer = new SoundPlayer(this, soundname);
    sdPlayer.start();    
  }
  public void stop() {
  	sdPlayer = null;
  	super.stop();
  }
 }
 
// This is the thread class that loads and plays the sound
class SoundPlayer extends Thread {
  private AudioAnimator applet;
  private AudioClip clip;
  
  // Store the information the run() method needs, and start it.
  public SoundPlayer(AudioAnimator app, String url) {
    applet = app;
    clip = app.getAudioClip(applet.getDocumentBase(), url);
  }
  // This is the code the thread runs to load and play the sound
  public void run() { 
    applet.espera(5000); 
  	  
  	Thread thisThread = Thread.currentThread();
  	while ( applet.sdPlayer == thisThread ) {
  	  clip.loop(); 		  
      applet.espera(5200); 
    }
    clip.stop();
  }
}