public void Undo(int levels)
{
Console.WriteLine("\n---- Undo {0} levels ", levels);
// Perform undo operations
for (int i = 0; i < levels; i++)
{
if (_current > 0)
{
CommandEx command = _commands[--_current] as CommandEx;
command.UnExecute();
}
}
}
public void Redo(int levels)
{
Console.WriteLine("\n---- Redo {0} levels ", levels);
// Perform redo operations
for (int i = 0; i < levels; i++)
{
if (_current < _commands.Count - 1)
{
CommandEx command = _commands[_current++];
command.Execute();
}
}
}