def perception(self):
        room = Room()
        slt = room.slot
        obj = Object.__subclasses__()
        wpn = Weapon.__subclasses__()
        wpn_util = wpn.get_utility()
        wpn_st = wpn.get_static()
        weapons = []
        objects = []
        for ob in slt[:]:
            if isinstance(ob, obj):
                for wp in obj:
                    if isinstance(wp, wpn):
                        weapons.append(ob)
                    else:
                        objects.append(ob)