// 

// Adapted from: https://p5js.org/examples/sound-load-and-play-sound.html  

//   - Changed the sketch to use the 'preload()' function.

//   - Added visual feedback to show when the song is playing.

​

let song;

​

function preload() {

  song = loadSound('assets/lucky_dragons_-_power_melody.mp3');

}

function setup() {

  createCanvas(720, 200);

  background(255, 0, 0);

  textAlign(CENTER, CENTER);

  text("CLICK TO PLAY", width / 2, height / 2);

}

​

function mousePressed() {

 if (song.isPlaying()) {

   // .isPlaying() returns a boolean

   song.stop();

   background(255, 0, 0);

   text("CLICK TO PLAY", width / 2, height / 2);

 } else {

    song.play();

    background(0, 255, 0);

    text("CLICK TO STOP", width / 2, height / 2);

  }

}