constructor(x,y,xspeed,yspeed) {

    this.x = x;

    this.y = y;

    this.xspeed = xspeed;

    this.yspeed = yspeed;

  }

​

  move() {

    this.x = this.x + this.xspeed;

    this.y = this.y + this.yspeed;

  }

​

  bounce() {

    if (this.x > width || this.x < 0) {

      this.xspeed = this.xspeed * -1;

    }

​

    if (this.y > height || this.y < 0) {

      this.yspeed = this.yspeed * -1;

    }

  }

​

  show() {

    stroke(255);

    strokeWeight(4);

    fill(200, 0, 200);

    ellipse(this.x, this.y, 24, 24);

  }

}

​