/** 	
	ColToot03.java

	Put three MusicJobs in a SequentialCollection that acts behaviorally,
	ie. chooses a new child each repeat.
	
 * @author  Nick Didkovsky and Phil Burk
 */
/*
 * (C) 1997 Phil Burk and Nick Didkovsky, All Rights Reserved
 * JMSL is based upon HMSL (C) Phil Burk, Larry Polansky and David Rosenboom.
 */

package jmsltutorial;

import java.awt.Frame;
import java.awt.TextArea;

import com.softsynth.jmsl.*;

public class ColToot03 extends java.applet.Applet {

	SequentialCollection mySequentialCollection;
	MusicJob mj1;
	MusicJob mj2;
	MusicJob mj3;

	TextArea myTextArea;

	/* Build our hierarchy when the applet initializes, and send JMSL's STDOut to a TextArea */
	public void init() {
		// initialize the TextArea with 15 rows, 40 columns
		myTextArea = new TextArea(15, 40);
		// Add the TextArea to the applet's layout
		add(myTextArea);
		// Hand this TextArea to a new TextAreaSTDOut, and use it for JMSL.out 
		JMSL.setSTDOut(new TextAreaSTDOut(myTextArea));

		// initialize collection with vanilla MusicJobs
		mySequentialCollection = new SequentialCollection();
		mySequentialCollection.setBehavior(new TutorialBehavior());
		mj1 = new MusicJob();
		mj2 = new MusicJob();
		mj3 = new MusicJob();

		MessagePrintingPlayable mppf = new MessagePrintingPlayable("Repeating");
		mj1.addRepeatPlayable(mppf);
		mj2.addRepeatPlayable(mppf);
		mj3.addRepeatPlayable(mppf);

		mj1.setRepeatPause(1.0);
		mj2.setRepeatPause(1.5);
		mj3.setRepeatPause(2.0);

		mySequentialCollection.add(mj1);
		mySequentialCollection.add(mj2);
		mySequentialCollection.add(mj3);

		mySequentialCollection.setRepeats(20);
		//mySequentialCollection.printHierarchy();
		
		// set seed from clock
		JMSLRandom.randomize();
	}

	/* When applet starts up, launch collection */
	public void start() {
		JMSL.clock = new DefaultMusicClock();
		mySequentialCollection.launch(JMSL.now());
	}

	/* Shut down the Collection when applet stops */
	public void stop() {
		mySequentialCollection.finish();
	}

	public static void main(String args[]) {
		Frame frame = new Frame();
		frame.addWindowListener(new java.awt.event.WindowAdapter() {
			public void windowClosing(java.awt.event.WindowEvent e) {
				System.exit(0);
			}
		});

		ColToot03 applet = new ColToot03();
		applet.init();
		applet.start();
		
		frame.add(applet);
		frame.setSize(600, 500);
		frame.setVisible(true);

	}
}

class TutorialBehavior implements Behavior {

	/* Implement your own Behavior here.  This one chooses a child uniformly randomly
	 */
	public Composable choose(SequentialCollection col) {
		int index = JMSLRandom.choose(col.size());
		JMSL.out.println("TutorialBehavior chooses index " + index);
		return col.get(index);
	}

}