​

  constructor(x, y) {

    this.position = createVector(x, y);

    this.velocity = p5.Vector.random2D();

    this.acc = createVector(0, 0);

    this.velocity.mult(random(5, 9));

    this.lifetime = 255;

  }

​

  update() {

    this.position.add(this.velocity);

    this.velocity.add(this.acc);

    this.lifetime -= 50;

    this.acc.mult(0);

    //sound.play(); 

  }

​

    show() {

    fill(255, 0, 0, this.lifetime);

    noStroke();

    ellipse(this.position.x, this.position.y, 4, 4);

  }

​

  apply(force) {

    this.acc.add(force);

  }

}

​