constructor (x, y, size) {

    this.x = random (width);

    this.y = random (height);

    this.size = random (20);

    this.color = color (random (255), random (255), random (255));

  }

​

  display()

  {

    fill(this.color);

    noStroke();

    ellipse (this.x, this.y, this.size, this.size);

  }

​

let bubbles = [];

​

function setup() {

  createCanvas(960, 540);

  for(var i = 0; i<10; i++){

    let b = new Ball();

    bubbles.push(b);

  }

}

​

function draw() {

  background(220);

 for(let i = 0; i<bubbles.length; i++){

 bubbles[i].display();

​

 }

}