private watchForGamepad()

in src/input.service.ts [425:460]

30 lines of code
6 McCabe index (conditional complexity)


  private watchForGamepad() {
    const addGamepad = (pad: Gamepad | null) => {
      let gamepad: IGamepadWrapper | null = null;
      if (pad === null) {
        return;
      }
      if (/xbox/i.test(pad.id)) {
        gamepad = new XboxGamepadWrapper(pad);
      }
      if (!gamepad) {
        // We can try, at least ¯\_(ツ)_/¯ and this should
        // usually be OK due to remapping.
        gamepad = new XboxGamepadWrapper(pad);
      }

      this.gamepads[pad.id] = gamepad;
    };

    Array.from(navigator.getGamepads())
      .filter(pad => !!pad)
      .forEach(addGamepad);

    if (Object.keys(this.gamepads).length > 0) {
      this.scheduleGamepadPoll();
    }

    this.subscriptions.push(
      merge(this.gamepadSrc, fromEvent(window, 'gamepadconnected')).subscribe(ev => {
        addGamepad((<any>ev).gamepad);
        if (this.pollRaf) {
          cancelAnimationFrame(this.pollRaf);
        }
        this.scheduleGamepadPoll();
      }),
    );
  }