constructor(x, y) {

    this.pos = createVector(x, y);

    //this.vel = createVector(1,-1);

    this.vel = p5.Vector.random2D();

    this.vel.mult(random(3));

  }

  update() {

    // moves the circle

    this.pos.add(this.vel);

  }

  show() {

    stroke(255, 100);

    strokeWeight(2);

    fill(255, 100)

    circle(this.pos.x, this.pos.y, 32);

  }

}