/** 	
	InsToot03.java

	Fill a MusicShape with random numbers, play it with a custom Instrument.
	
 * @author Phil Burk and Nick Didkovsky
 */
/*
 * (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.TextArea;

import com.softsynth.jmsl.*;

public class InsToot03 extends java.applet.Applet {

	MusicShape myMusicShape;

	TextArea myTextArea;

	/* Build data when the applet initializes, and send JMSL's STDOut to a TextArea */
	public void init() {
		// initialize the TextArea with 15 rows, 80 columns
		myTextArea = new TextArea(15, 80);
		// 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));

		myMusicShape = new MusicShape(4);
		for (int i = 0; i < 20; i++) {
			// choose a duration between 0.25 and 3.0 seconds, in qtr second intervals
			double duration = JMSLRandom.choose(12) * 0.25 + 0.25;
			// choose a chord root between Midi pitch 40 and 64
			double root = (double) JMSLRandom.choose(40, 64);
			// choose a number of intervals in chord
			double intervals = (double) JMSLRandom.choose(1, 6);
			// choose a harmonic complexity value 0..11
			double harmonicComplexity = JMSLRandom.choose(12);

			myMusicShape.add(duration, root, intervals, harmonicComplexity);
		}

		// Now let's name the dimensions with human-friendly monikers

		myMusicShape.setDimensionName(0, "Duration");
		myMusicShape.setDimensionName(1, "Chord Root");
		myMusicShape.setDimensionName(2, "Number of Intervals");
		myMusicShape.setDimensionName(3, "Harmonic Complexity");

		// Finally, let's set up a custom Instrument
		myMusicShape.setInstrument(new PrintingInstrument());
	}

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

	public void stop() {
		myMusicShape.finish();
	}
}

/** A simple Instrument subclass that just prints out the data it is handed, interprets element[0] as duration */
class PrintingInstrument extends InstrumentAdapter {

	/** Overridden for custom interpretation */
	public double play(double playTime, double timeStretch, double dar[]) {
		JMSL.out.println("Instrument.play() is handed the following array of doubles:");
		JMSL.printDoubleArray(dar);
		JMSL.out.println();
		return playTime + (dar[0] * timeStretch); // interpret dar[0] as duration
	}
}