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import jm.audio.AudioObject;
import jm.audio.Instrument;
import jm.audio.io.SampleOut;
import jm.audio.synth.*;

/**
 * A multiple sawtooth instrument implementation
 * which has each wave detuned.
 *
 * @author Andrew Brown, Nick Coleman and Andrew Sorensen
 */

public final class SuperSawInst extends Instrument {
    //----------------------------------------------
    // Attributes
    //----------------------------------------------

    /**
     * The points to use in the construction of Envelopes
     */
    private EnvPoint[] pointArray = new EnvPoint[10];
    /**
     * the same rate
     */
    private int sampleRate;
    /**
     * The frequency ratio between wavefroms
     */
    private double detune;

    //----------------------------------------------
    // Constructor
    //----------------------------------------------

    /**
     * Basic default constructor to set an initial sample rate
     *
     * @param sampleRate
     */
    public SuperSawInst(int sampleRate) {
        this(sampleRate, 0.001);
    }

    /**
     * Basic default constructor to set an initial sample rate
     *
     * @param sampleRate
     */
    public SuperSawInst(int sampleRate, double detune) {
        this.sampleRate = sampleRate;
        this.detune = detune;
        EnvPoint[] tempArray = {
                new EnvPoint((float) 0.0, (float) 0.0),
                new EnvPoint((float) 0.02, (float) 1.0),
                new EnvPoint((float) 0.15, (float) 0.6),
                new EnvPoint((float) 0.9, (float) 0.3),
                new EnvPoint((float) 1.0, (float) 0.0)
        };
        pointArray = tempArray;
    }

    //----------------------------------------------
    // Methods
    //----------------------------------------------

    /**
     * Initialisation method used to build the objects that
     * this instrument will use
     */
    public void createChain() {
        Oscillator wt1 = new Oscillator(this, Oscillator.SAWTOOTH_WAVE, this.sampleRate, 2);
        Oscillator wt2 = new Oscillator(this, Oscillator.SAWTOOTH_WAVE, this.sampleRate, 2);
        wt2.setFrqRatio((float) (1.0 + detune));
        Oscillator wt3 = new Oscillator(this, Oscillator.SAWTOOTH_WAVE, this.sampleRate, 2);
        wt3.setFrqRatio((float) (1.0 - detune * 2));
        Oscillator wt4 = new Oscillator(this, Oscillator.SAWTOOTH_WAVE, this.sampleRate, 2);
        wt4.setFrqRatio((float) (1.0 + detune * 2));
        Oscillator wt5 = new Oscillator(this, Oscillator.SAWTOOTH_WAVE, this.sampleRate, 2);
        wt5.setFrqRatio((float) (1.0 - detune));
        Oscillator wt6 = new Oscillator(this, Oscillator.SAWTOOTH_WAVE, this.sampleRate, 2);
        wt6.setFrqRatio((float) (1.0 + detune * 3));
        Oscillator wt7 = new Oscillator(this, Oscillator.SAWTOOTH_WAVE, this.sampleRate, 2);
        wt7.setFrqRatio((float) (1.0 - detune * 3));
        AudioObject[] waves = {wt1, wt2, wt3, wt4, wt5, wt6, wt7};
        Add add = new Add(waves);
        Envelope env = new Envelope(add, pointArray);
        Volume vol = new Volume(env);
        StereoPan span = new StereoPan(vol);
        SampleOut sout = new SampleOut(span);
    }
}