static private IEnumerator UITransition(CanvasGroup cg, bool show, float delayTime, float durationTime, ShowUIDelegate showUIComplete)
{
yield return(new WaitForSeconds(delayTime));
float elapsedTime = 0;
float start, end;
cg.gameObject.SetActive(true);
if (show)
{
start = 0f;
end = 1f;
}
else
{
start = 1f;
end = 0f;
}
while (elapsedTime < durationTime)
{
cg.alpha = Mathf.Lerp(start, end, elapsedTime / durationTime);
elapsedTime += Time.deltaTime;
yield return(null);
}
//cg.alpha = end;
cg.alpha = 1f; //whether the UI gets activated or not, cg.alpha should always be 1f for later use.
cg.gameObject.SetActive(show);
if (showUIComplete != null)
{
showUIComplete();
}
}
static public void ShowUI(MonoBehaviour monoBehaviour, CanvasGroup cg, bool show, float delayTime, float durationTime, ShowUIDelegate showUIComplete = null)
{
monoBehaviour.StartCoroutine(UITransition(cg, show, delayTime, durationTime, showUIComplete));
}
