void Start()
{
uiText.text = character.ToUpperInvariant();
UiButton.OnClickAsObservable()
.Subscribe(_ => DoCharacterQuickJump());
this.ObserveEveryValueChanged(me => me.character).WhereNotNull()
.Subscribe(newCharacter => uiText.text = newCharacter.ToUpperInvariant());
disposables.Add(InputManager.GetInputAction(R.InputActions.ui_submit).PerformedAsObservable()
.Where(_ => eventSystem.currentSelectedGameObject == UiButton.gameObject)
.Subscribe(_ => DoCharacterQuickJump()));
}