// #14 ADSR Envelope. DittyToy 2022.
// The MIT License.
//
// https://dittytoy.net/ditty/34e1600f63
//
// The default envelope in Dittytoy is the ADSR (attack, decay, sustain, duration, release) envelope.
// Note: attack, decay and release are in seconds, duration in ticks.
//
// adsr      envelope: https://dittytoy.net/ditty/34e1600f63
// adsr2     envelope: https://dittytoy.net/ditty/0f2e4c2cdd
// segmented envelope: https://dittytoy.net/ditty/ce63852ccf
//
// https://dittytoy.net/syntax#envelopes
//

input.attack   = 0.1; // min=0, max=0.2, step=0.001
input.decay    = 0.2; // min=0, max=2, step=0.001
input.duration = 1.0; // min=0, max=2, step=0.001
input.sustain  = 0.5; // min=0, max=1, step=0.001
input.release  = 0.5; // min=0, max=2, step=0.001
input.curve    =  -2; // min=-9, max=9,   step=0.1

// signalProbe - by athibaul
const signalProbe = filter.def(  
    class {
        process(input) {
            debug.probe('signal', input[0]+input[1], 2, 1);
            return input;
        }   
    });

loop( () => {
    sine.play(c, { 
        attack:         input.attack,    // attack in seconds
        decay:          input.decay,     // decay in seconds
        sustain:        input.sustain,
        release:        input.release,   // release in seconds
        curve:          input.curve,     // you can also set an array [0, -3, -3] with different curves for the attack, decay and release phase
        duration:       input.duration,  // duration in ticks!

        env:            adsr
    });
    sleep( Math.max(second_to_tick(input.attack + input.decay), input.duration) + second_to_tick(input.release) + 1);
}, { name: 'ADSR envelope' }).connect( signalProbe.create() );;