public bool DoUndo()
{
if (undoActions.Count == 0)
{
return(false);
}
//remove from undo list
Action action = undoActions[undoActions.Count - 1];
undoActions.RemoveAt(undoActions.Count - 1);
//do undo
action.DoUndo();
ActionUndo?.Invoke(action);
//add to redo list
if (redoActions.Count + 1 >= maxLevel)
{
redoActions[0].Destroy();
ActionDestroy?.Invoke(redoActions[0]);
redoActions.RemoveAt(0);
}
redoActions.Add(action);
ListOfActionsChanged?.Invoke(this, EventArgs.Empty);
return(true);
}
