private IEnumerator CountdownSecondsFrom(int time) { playUi.countdownText.gameObject.SetActive(true); playUi.timerText.gameObject.SetActive(false); while (time > 0) { playUi.countdownText.text = time.ToString(); time--; yield return(new WaitForSecondsRealtime(1)); } playUi.countdownText.gameObject.SetActive(false); playUi.timerText.gameObject.SetActive(true); modeController.StartGame(); }