Method onKey

src/controller/Controller.js:103–108

* Helper class to reduce code between event functions. * @private * @param {KeyboardEvent} event * @param {KeyState} state * @memberof Controller

(event, state)

   * @memberof Controller
   */
  onKey(event, state) {
    const key = event.key.toLowerCase();
    if (this.buttons[key]) {
      this.buttons[key].updateState(state);
    }
  }
}