private IEnumerator transitionToScene(string sceneName)
{
UiHelper.setAllButtonEnabled(navigationSelectionContainer, false);
// Start to load next scene
AsyncOperation ao = SceneManager.LoadSceneAsync(sceneName, LoadSceneMode.Single);
ao.allowSceneActivation = false;
// Transition UI out
StartCoroutine(ambientAudio.fadeOut(1));
StartCoroutine(transitionUi(false));
// Fade out
yield return(StartCoroutine(Camera.main.fadeOut(2)));
// Switch to next scene
ao.allowSceneActivation = true;
}