// Discard redo stack if item is added to move history
public void AddItem(HistoryItem newItem)
{
Future = new Stack <HistoryItem>();
Past.Push(newItem);
CurrItem = Past.Peek();
}
public void Redo()
{
int currTurn = CurrItem.Turn;
int targetTurn = currTurn + 2;
while (Future.Count > 0 && currTurn != targetTurn)
{
Past.Push(Future.Pop());
CurrItem = Past.Peek();
currTurn = CurrItem.Turn;
}
// check if can redo
//if (Future.Count > 1)
//{
// Past.Push(Future.Pop());
// Past.Push(Future.Pop());
// CurrItem = Past.Peek();
//}
}
