​

function setup() {

  createCanvas(800, 600);

  boids = [];

  for (let i = 0; i < 100; i++)

    boids.push(new Boid());

}

​

function draw() {

  background(25);

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

    boids[i].update();

    boids[i].show();

    boids[i].imitNeighbours(getOtherBoids(i));

  }

}

​

function getOtherBoids(i) {

  return boids.filter((item, index) => index !== i);

}

​