def getRole(self, ID):
        """ Returns the role (active or passive) of an object
        in this aspect.
        
        """
        if self.active.id == ID:
            return {
                'role': 'active',
                'inOrb': self.active.inOrb,
                'movement': self.active.movement
            }
        elif self.passive.id == ID:
            return {
                'role': 'passive',
                'inOrb': self.passive.inOrb,
                'movement': self.passive.movement
            }
        return None