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

/**
 * A basic FM synthesis instrument implementation
 *
 * @author Andrew Sorensen
 */

public final class RTSimpleFMInst extends jm.audio.Instrument {
    //----------------------------------------------
    // Attributes
    //----------------------------------------------
    /**
     * This is where it all gets added together
     */
    public SampleOut sout;
    /**
     * The wavetables to use for each frequency specified
     */
    private WaveTable wt1;
    /**
     * The wavetables to use for each frequency specified
     */
    private WaveTable wt2;
    /**
     * The envelope to apply to each wavetable's output
     */
    private Envelope env;
    /**
     * Add the streams together
     */
    private Add add;
    /**
     * The volume to apply to each envelopes output
     */
    private Volume vol;
    /**
     * Pan
     */
    private float pan;
    /**
     * The points to use in the construction of Envelopes
     */
    private EnvPoint[] pointArray = new EnvPoint[10];
    /**
     * The number of channels
     */
    private int channels;
    /**
     * The deviation index
     */
    private int dIndex;
    /**
     * The frequency ratio from the carrier frequency (the notes pitch)
     */
    private float frqRatio;

    private int sampleRate;

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

    /**
     * Basic default constructor to set an initial
     * sampling rate.
     *
     * @param sampleRate
     */
    public RTSimpleFMInst(int sampleRate, int dIndex, double ratio) {
        this(sampleRate, 1, dIndex, ratio);
    }

    /**
     * A constructor to set an initial
     * sampling rate and number of channels.
     *
     * @param sampleRate
     */
    public RTSimpleFMInst(int sampleRate, int channels, int dIndex, double ratio) {
        this.sampleRate = sampleRate;
        EnvPoint[] tempArray = {
                new EnvPoint((float) 0.0, (float) 0.0),
                new EnvPoint((float) 0.1, (float) 1.0),
                new EnvPoint((float) 0.15, (float) 0.4),
                new EnvPoint((float) 0.9, (float) 0.3),
                new EnvPoint((float) 1.0, (float) 0.0)
        };
        pointArray = tempArray;
        this.channels = channels;
        this.dIndex = dIndex;
        this.frqRatio = (float) ratio;
    }

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

    public void setController(double[] index) {
        if (this.wt1 == null) return;
        this.wt1.setAmp((float) index[0]);
    }

    /**
     * Initialisation method used to build the objects that
     * this instrument will use
     */
    public void createChain() throws AOException {
        Oscillator osc = new Oscillator(this, Oscillator.SINE_WAVE, this.sampleRate, this.channels);
        osc.setAmp((float) this.dIndex);
        osc.setFrqRatio(this.frqRatio);
        Value cf = new Value(this, this.sampleRate, this.channels, 1);
        AudioObject[] grp1 = {cf, wt1};
        Add add = new Add(grp1);
        Oscillator osc2 = new Oscillator(add, Oscillator.SINE_WAVE, 1);
        Envelope env = new Envelope(osc2, pointArray);
        Volume vol = new Volume(env, (float) 1.0);
/*

		Splitter split = new Splitter(vol);
		Comb comb1 = new Comb(split,30,0.5);
		Comb comb2 = new Comb(split,40,0.5);
		Comb comb3 = new Comb(split,157,0.5);
		Comb comb4 = new Comb(split,90,0.5);
		AudioObject[] grp2 = {comb1,comb2,comb3,comb4};
		Add add2 = new Add(grp2);
		AllPass ap1 = new AllPass(add2,200,0.5);
		AllPass ap2 = new AllPass(ap1,50,0.5);
*/

        StereoPan span = new StereoPan(vol);
        //SampleOut sout = new SampleOut(span, "jmusic.tmp");
    }
}