​

class Oscillator {

  constructor() {

    this.angle = createVector();

    this.velocity = createVector(random(-0.05, 0.05), random(-0.05, 0.05));

    this.amplitude = createVector(random(20, width / 2), random(20, height / 2));

  }

​

  oscillate() {

    this.angle.add(this.velocity);

  }

​

  display() {

    let x = sin(this.angle.x) * this.amplitude.x;

    let y = sin(this.angle.y) * this.amplitude.y;

​

    push();

    translate(width / 2, height / 2);

    stroke(255);

    strokeWeight(2);

    fill(127, 127);

    line(0, 0, x, y);

    ellipse(x, y, 32, 32);

    pop();

  }

}

​

// An array of objects

let oscillators = [];

​

function setup() {

  createCanvas(640, 360);

  // Initialize all objects

  for (let i = 0; i < 10; i++) {

    oscillators.push(new Oscillator());

  }

}

​

function draw() {

  background(51);

  // Run all objects

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

    oscillators[i].oscillate();

    oscillators[i].display();

  }

}