/*
 * Created by Nick on Jan 3, 2005
 *
 */
package jmslexamples.simple;

import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

import javax.swing.JFrame;
import javax.swing.JLabel;

import com.softsynth.jmsl.EventScheduler;
import com.softsynth.jmsl.Instrument;
import com.softsynth.jmsl.JMSL;
import com.softsynth.jmsl.JMSLMixerContainer;
import com.softsynth.jmsl.JMSLRandom;
import com.softsynth.jmsl.MusicJob;
import com.softsynth.jmsl.jsyn2.JSynMusicDevice;
import com.softsynth.jmsl.jsyn2.JSynUnitVoiceInstrument;

/**
 * Use a MusicJob to play a melody made up of uniformly random pitches,
 * durations, amplitudes, & hold times
 * 
 * @author Nick Didkovsky, (c) 2004 All rights reserved, Email:
 *         nick@didkovsky.com
 * 
 */
public class RandomJSynMusicJobMelody extends JFrame {

    JMSLMixerContainer mixer;
    Instrument instrument;
    MusicJob randomMelodyMaker;

    public void start() {
        JMSLRandom.randomize();
        initJMSL();
        initMusicDevices();
        buildMixer();
        buildInstrument();
        buildRandomMelodyMaker();
        launchRandomMelodyMaker();
    }

    private void initJMSL() {
        JMSL.scheduler = new EventScheduler();
        JMSL.scheduler.start();
        JMSL.clock.setAdvance(0.2);
    }

    private void initMusicDevices() {
        JSynMusicDevice.instance().open();
    }

    private void buildMixer() {
        mixer = new JMSLMixerContainer();
        mixer.start();
    }

    private void buildInstrument() {
        String unitVoiceClassName = com.softsynth.jmsl.jsyn2.unitvoices.FMVoice.class.getName();
        int unitVoicePreset = com.softsynth.jmsl.jsyn2.unitvoices.FMVoice.PRESET_WOODDRUM;
        int polyphony = 8;
        instrument = new JSynUnitVoiceInstrument(polyphony, unitVoiceClassName, unitVoicePreset);
        mixer.addInstrument(instrument);
    }

    void buildRandomMelodyMaker() {
        randomMelodyMaker = new MusicJob() {

            public double repeat(double playTime) {
                double duration = JMSLRandom.choose(4) * 0.125;
                double pitch = JMSLRandom.choose(60, 72);
                double amplitude = JMSLRandom.choose(0.2, 0.5);
                double hold = JMSLRandom.choose(0.1, 0.5);
                double[] data = { duration, pitch, amplitude, hold };
                return getInstrument().play(playTime, 1.0, data);
            }

        };
        randomMelodyMaker.setInstrument(instrument);
        randomMelodyMaker.setRepeats(10000);
    }

    private void launchRandomMelodyMaker() {
        randomMelodyMaker.launch(JMSL.now());
    }

    public void stop() {
        randomMelodyMaker.finishAll();
        try {
            randomMelodyMaker.waitForDone();
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        JMSL.scheduler.stop();
        JMSL.closeMusicDevices();
    }

    public static void main(String[] args) {
        RandomJSynMusicJobMelody demo = new RandomJSynMusicJobMelody();
        demo.add(new JLabel("There is no GUI for this example", JLabel.CENTER));
        demo.setSize(800, 200);
        demo.setVisible(true);
        demo.start();

        demo.addWindowListener(new WindowAdapter() {
            public void windowClosing(WindowEvent e) {
                demo.stop();
                System.exit(0);
            }
        });
    }
}