<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def barracks_correct_placement(self) -> Point2: """ Corrected placement so that an addon can fit """

        if len(self.upper2_for_ramp_wall) == 2:
            if self.barracks_can_fit_addon:
                return self.barracks_in_middle
            else:
                return self.barracks_in_middle.offset((-2, 0))
        raise Exception("Not implemented. Trying to access a ramp that has a wrong amount of upper points.")