import krister.Ess.*;
import controlP5.*;
ControlP5 controlP5;
AudioChannel myChannel;
SineWave myWave;
float volume=0.5;
int pitch=400;
int release=1000;

void setup() {
  background(0);
  //frameRate(25);
  size(256,200);
  Ess.start(this);
  myChannel=new AudioChannel();
  controlP5 = new ControlP5(this);
  controlP5.addSlider("Pitch",200,2000,40,10,10,10,100).setId(1);
  controlP5.addSlider("Volume",0,2,40,70,10,10,100).setId(2);
  controlP5.addSlider("Release",1000,8000,40,120,10,10,100).setId(3);
}

void controlEvent (ControlEvent theEvent) {
  switch(theEvent.controller().id()) {
    
    case(1):
    pitch = (int)(theEvent.controller().value());
    //print("the pitch changed to " + pitch + "\n");
    break;
    
    case(2):
    volume = (float)(theEvent.controller().value());
    //print("the VOLUME changed to " + volume + "\n");
    break;
    
    case(3):
    release = (int)(theEvent.controller().value());
    //print("the note length changed to " + release + "\n");
    break;
  }
    myWave=new SineWave(pitch,volume);
    myChannel.initChannel(myChannel.frames(release));
    myWave.generate(myChannel,5,myChannel.frames(release));
    myChannel.play();   
}

void draw() {
  controlP5.draw();
} 

public void stop() {
  Ess.stop();
  super.stop();
}