public void Undo()
{
if (CanUndo())
{
CreateAnimation($"Command Undone: {GetUndoHint()}");
var command = _commands.Pop();
command.Undo();
CommandStackChanged?.Invoke();
}
}
public void Dispose()
{
_spriteBatch.Dispose();
_spriteBatch = null;
if (CommandStackChanged != null)
{
foreach (var d in CommandStackChanged.GetInvocationList())
{
CommandStackChanged -= (d as CommandStackChangedDelegate);
}
}
}
public void ExecuteCommand(ICommand command, bool isUndoable = true)
{
if (command == null)
{
throw new ArgumentNullException("Command is null");
}
if (isUndoable)
{
_commands.Push(command);
}
command.Initialize(Game);
command.Execute();
CreateAnimation($"Command added: {command.GetHintText()}");
if (isUndoable)
{
CommandStackChanged?.Invoke();
}
}
