gistfile1.txt

// thing that hold state
	public interface ISwitchableBehaviourState<TThingToAlter>
	{
		void RegisterThingToAlterWithReversibleAction(TThingToAlter thingToAlter, Func<TThingToAlter, Action<TThingToAlter>> reversibleAction);
	}



// thing that will be manipulated

public interface ISwitchableBehaviourActuator
	{
		void EnlistReversibleActionAsCompoundBehaviour<TThingToAlter>(TThingToAlter thingToAlter,
		                                                              Func<TThingToAlter, Action<TThingToAlter>>
		                                                              	reversibleAction);
		void ActivateIfNotAlreadyActivated();
		void DesactivateIfActivated();
	}