02 Game Loops

Challenge of bounce to-fro: modify in update() method

 if(this.x===0){
      this.count--;
    }
    if(this.x===canvas.width){
      this.count++;
    }
    if(this.count===0){
    this.x += this.speedX;
    this.y += this.speedY;
    }
    else{
       this.x -= this.speedX;
    this.y -= this.speedY;
    }

initially count is supposed to be 1

Waiting for more...

Awesome and clear explaination.