/**
 * Play a sound sample and pass it through a tape delay, changing the delay
 * parameters based on the mouse position.
 */

import processing.sound.*;

SoundFile soundfile;
Delay delay;

void setup() {
  size(640, 360);
  background(255);

  // Load a soundfile
  soundfile = new SoundFile(this, "vibraphon.aiff");

  // Create the delay effect
  delay = new Delay(this);

  // Play the file in a loop
  soundfile.loop();

  // Connect the soundfile to the delay unit, which is initiated with a
  // five second "tape"
  delay.process(soundfile, 5.0);
}

void draw() { 
  // Map mouseX from -1.0 to 1.0 for left to right panning
  float position = map(mouseX, 0, width, -1.0, 1.0);
  soundfile.pan(position);

  // Map mouseX from 0 to 0.8 for the amount of delay feedback
  float fb = map(mouseX, 0, width, 0.0, 0.8);
  delay.feedback(fb);

  // Map mouseY from 0.001 to 2.0 seconds for the length of the delay
  float delayTime = map(mouseY, 0, height, 0.001, 2.0);
  delay.time(delayTime);
}