var soundB;

var buttonA;

var buttonB;

​

function preload() {

  soundA = loadSound('0.wav');

  soundB = loadSound('1.wav');

​

​

}

​

function setup() {

  createCanvas(400, 400);

  buttonA = createButton('soundA');

  buttonA.position(20, 20);

  buttonA.mousePressed(changeSoundA);

​

  buttonB = createButton('soundB');

  buttonB.position(120, 20);

  buttonB.mousePressed(changeSoundB);

  background(220);

}

​

function draw() {

​

}

​

function changeSoundA() {

  if (soundA.isPlaying()) {

    // .isPlaying() returns a boolean

    soundA.stop();

​

  } else {

    soundA.play();

    background(0, 255, 0);

  }

​

}

​

function changeSoundB() {

  if (soundB.isPlaying()) {

    // .isPlaying() returns a boolean

    soundB.stop();

​

  } else {

    soundB.play();

    background(255, 0, 0);

  }

​

}