me>
          </section>



          <!-- Adding Movement -->
          <section>
            <h1>Making the car move</h1>
          </section>
          <section>
            <img class="stretch" src="/images/slides/movement.png" />
          </section>
          <section>
            <pre><code>
tick() {
  // steering
  if (this.engine.keysdown.indexOf('ArrowRight') != -1) {
    this.steering -= (this.steering > -this.maxsteering) ? this.steeringdelta : 0;
  } else if (this.engine.keysdown.indexOf('Arrow