class Mover {

  constructor(x, y, m) {

    this.pos = createVector(x, y);

    this.vel = p5.Vector.random2D();

    this.vel.mult(5);

    this.acc = createVector(0, 0);

    this.mass = m;

    this.r = sqrt(this.mass) * 2;

  }

​

  applyForce(force) {

    let f = p5.Vector.div(force, this.mass);

    this.acc.add(f);

  }

​

  update() {

    this.vel.add(this.acc);

    this.pos.add(this.vel);

    this.acc.set(0, 0);

  }

​

  show() {

    stroke(0);

    strokeWeight(2);

    fill(random(255),random(255),random(255));

​

  ellipse(this.pos.x, this.pos.y, random(100), random(100));

  }

}