constructor() {

    this.r = 64;

    this.x = this.r;

    this.y = height - this.r

    this.vy = 0;

    this.gravity = 1.5;

    this.jumpStatus = false;

  }

​

  checkCollision(c) {

    if (c.x < this.x + this.r / 2 && c.x + this.r > this.x && c.y > height - this.y && c.y < this.y + this.r) {

      noLoop();

      textSize(this.r/2);

      textAlign(CENTER, CENTER);

      let word = "You're dead!";

      text(word, width/2, height/2);

      fill(0, 102, 153);

      text(word, width/2, height/2+this.r/2);

      fill(0, 102, 153, 51);

      text(word, width/2, height/2+this.r/2+this.r/2);

    }

  }

​

  jump() {

    if (this.jumpStatus == false) {

      this.vy = -30;

      this.jumpStatus = true;

    }

  }

​

  move() {

    this.y += this.vy;

    if (this.y >= height - this.r) {

      this.vy = 0;

      this.y = height - this.r;

      this.jumpStatus = false;

    } else {

      if (this.jumpStatus == true) {

        this.vy += this.gravity;

      }

    }

​

  }

​

  show() {

    rect(this.x, this.y, this.r / 2, this.r);

  }

}