// The Nature of Code

​

let movers = [];

let attractors = [];

​

function setup() {

  createCanvas(600, 600);

  for (let i = 0; i < 10; i++) {

    let x = random(width);

    let y = random(height);

    let m = random(50, 150);

    movers[i] = new Mover(x, y, m);

  }

  let a = new Attractor(300, 300, 100, 5);

  attractors.push(a);

​

  background(0);

}

​

function mousePressed() {

  let a = new Attractor(mouseX, mouseY, 100, 5);

  attractors.push(a);

}

​

function keyPressed() {

  let a = new Attractor(mouseX, mouseY, 100, -5);

  attractors.push(a);

}

​

function draw() {

  background(0);

  for (let mover of movers) {

    mover.update();

    mover.show();

    for (let attractor of attractors) {

      attractor.attract(mover);

    }

  }

  for (let attractor of attractors) {

    attractor.show();

  }

}