void Start()
{
ObservableGamePadInput.Instance.OnButtonADownAsObservable
.Where(x => IsNewController(x))
.Subscribe(x => _model.AddPlayer(x))
.AddTo(this.gameObject);
ObservableGamePadInput.Instance.OnStartButtonDownAsObservable
.Where(x => x == 1)
.Where(x => _model.PlayerCount > 1)
.Subscribe(_ => {
_model.SavePlayerIDList();
MySceneManager.GoToMainGame();
});
}