/**
 * MJToot12.java
 * 
 * A subclass of MusicJob that generates double[] data every repeat(), and hands
 * it to its Instrument for interpretation
 * 
 * @author Nick Didkovsky, 2004-11-28
 */
/*
 * (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 MJToot12 extends java.applet.Applet {

    InstrumentPlayingMusicJob instrumentPlayingMusicJob;

    TextArea myTextArea;

    /*
     * Build our InstrumentPlayingMusicJob when applet initializes, send JMSL's
     * STDOut to a TextArea
     */
    public void init() {
        JMSLRandom.randomize();
        // initialize the TextArea with 20 rows, 50 columns
        myTextArea = new TextArea(20, 50);
        // 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 a new MusicJob. Its delay between repeats is set by its
        // Instrument's play() method
        instrumentPlayingMusicJob = new InstrumentPlayingMusicJob();

        // set its repeat count
        instrumentPlayingMusicJob.setRepeats(50);
    }

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

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

class InstrumentPlayingMusicJob extends MusicJob {

    InstrumentPlayingMusicJob() {
        setInstrument(new CustomPrintingInstrument());
    }

    public double repeat(double playTime) {
        JMSL.out.println("MusicJob.repeat(), playTime = " + playTime + ", repeat " + getRepeatCount() + "/" + getRepeats());
        double[] data = new double[3];
        data[0] = 2.0; // duration
        data[1] = JMSLRandom.choose(); // something else
        data[2] = JMSLRandom.gauss(5, 3); // something else again
        return getInstrument().play(playTime, 1, data);
    }

}

class CustomPrintingInstrument extends InstrumentAdapter {

    public double play(double playTime, double timeStretch, double[] data) {
        double duration = data[0];
        JMSL.out.println("CustomPrintingInstrument.play(), playTime=" + playTime);
        JMSL.out.println("Data:");
        for (int i = 0; i < data.length; i++) {
            JMSL.out.println(i + ", " + data[i]);
        }
        JMSL.out.println("");
        return playTime + duration * timeStretch;
    }
}