public void UpdateCard()
{
if (source.CardList.Count == 0)
{
targetViewer.gameObject.SetActive(false);
}
else
if (topCardLocation == FirstOrLast.First)
{
targetViewer.SetCard(source.CardList[0]);
}
else
{
targetViewer.SetCard(source.CardList[source.CardList.Count - 1]);
}
}
