// Example by Krister Olsson

import krister.Ess.*;

AudioStream myStream;
SineWave myWave;

void setup() {
  size(256,200);

  // start up Ess
  Ess.start(this);

  // create a new AudioStream
  myStream=new AudioStream();

  // our wave
  myWave=new SineWave(262,.33);
  
  // start
  myStream.start();
  
  // fade to silence over 10 seconds
  myStream.fadeTo(0,10000);
}

void draw() {
}

void keyPressed() {
  // stop the fade and leave the volume where it is
  myStream.stopFade();
}

void audioStreamWrite(AudioStream theStream) {
  // next wave
  myWave.generate(myStream);

  // adjust our phase
  myWave.phase+=myStream.size;
  myWave.phase%=myStream.sampleRate;
}

// we are done, clean up Ess

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