def __init__(self, robot):
        smach.StateMachine.__init__(self, outcomes=['Done', 'Aborted'])

        self.target_destination = ds.EntityByIdDesignator(
            robot, id=challenge_knowledge.default_place)

        self.car_waypoint = ds.EntityByIdDesignator(
            robot, id=challenge_knowledge.waypoint_car['id'])

        self.place_position = ds.LockingDesignator(ds.EmptySpotDesignator(
            robot,
            self.target_destination,
            name="placement",
            area=challenge_knowledge.default_area),
                                                   name="place_position")

        self.empty_arm_designator = ds.UnoccupiedArmDesignator(
            robot, {}, name="empty_arm_designator")

        # With the empty_arm_designator locked, it will ALWAYS resolve to the same arm, unless it is unlocked.
        # For this challenge, unlocking is not needed.

        self.bag_arm_designator = self.empty_arm_designator.lockable()
        self.bag_arm_designator.lock()

        # We don't actually grab something, so there is no need for an actual thing to grab

        self.current_item = ds.VariableDesignator(Entity(
            "dummy", "dummy", "/{}/base_link".format(robot.robot_name),
            kdl_conversions.kdl_frame_from_XYZRPY(0.6, 0, 0.5), None, {}, [],
            datetime.datetime.now()),
                                                  name="current_item")

        with self:
            smach.StateMachine.add('INITIALIZE',
                                   states.Initialize(robot),
                                   transitions={
                                       'initialized': 'SET_INITIAL_POSE',
                                       'abort': 'Aborted'
                                   })

            smach.StateMachine.add('SET_INITIAL_POSE',
                                   states.SetInitialPose(
                                       robot,
                                       challenge_knowledge.starting_point),
                                   transitions={
                                       'done': 'FOLLOW_OPERATOR',
                                       'preempted': 'Aborted',
                                       'error': 'FOLLOW_OPERATOR'
                                   })

            # Follow the operator until (s)he states that you have arrived at the "car".
            # smach.StateMachine.add('FOLLOW_OPERATOR',
            #                        states.FollowOperator(robot, operator_timeout=30, ask_follow=True, learn_face=True, replan=True),
            #                        transitions={'stopped': 'ASK_FOR_TASK',
            #                                     'lost_operator': 'ASK_FOR_TASK',
            #                                     'no_operator': 'FOLLOW_OPERATOR'})

            # Use NEW:
            smach.StateMachine.add('FOLLOW_OPERATOR',
                                   states.FollowOperator2(robot),
                                   transitions={
                                       'Done': 'ASK_FOR_TASK',
                                       'Failed': 'ASK_FOR_TASK',
                                       'Aborted': 'FOLLOW_OPERATOR'
                                   })

            smach.StateMachine.add('ASK_FOR_TASK',
                                   states.Say(robot,
                                              ["Are we at the car already?"],
                                              block=True,
                                              look_at_standing_person=True),
                                   transitions={'spoken': 'WAIT_FOR_TASK'})

            smach.StateMachine.add('WAIT_FOR_TASK',
                                   states.HearOptions(robot, ['yes', 'no']),
                                   transitions={
                                       'no': 'FOLLOW_OPERATOR',
                                       'yes': 'CONFIRM_CAR_LOCATION',
                                       'no_result': 'ASK_FOR_TASK'
                                   })

            smach.StateMachine.add(
                'CONFIRM_CAR_LOCATION',
                states.Say(
                    robot,
                    ["OK, I will remember this location as the car location."],
                    block=True,
                    look_at_standing_person=True),
                transitions={'spoken': 'REMEMBER_CAR_LOCATION'})

            smach.StateMachine.add('REMEMBER_CAR_LOCATION',
                                   hmc_states.StoreCarWaypoint(robot),
                                   transitions={
                                       'success': 'ASK_FOR_DESTINATION',
                                       'abort': 'Aborted'
                                   })

            smach.StateMachine.add(
                'ASK_FOR_DESTINATION',
                states.Say(robot, ["Where should I bring the groceries?"],
                           block=True,
                           look_at_standing_person=True),
                transitions={'spoken': 'RECEIVE_DESTINATION'})

            smach.StateMachine.add(
                'RECEIVE_DESTINATION',
                hmc_states.WaitForOperatorCommand(
                    robot,
                    possible_commands=challenge_knowledge.destinations,
                    commands_as_userdata=True,
                    target=self.target_destination),
                transitions={
                    'success': 'GRAB_ITEM',
                    'abort': 'Aborted'
                })
            #
            # smach.StateMachine.add('CONFIRM_DESTINATION',
            #                        states.Say(robot, [
            #                            "I will deliver the groceries to the %s" % ds.EntityByIdDesignator(self.target_destination)],
            #                                   block=True,
            #                                   look_at_standing_person=True),
            #                        transitions={'spoken': 'GRAB_ITEM'})

            # Grab the item (bag) the operator hands to the robot, when they are at the "car".
            smach.StateMachine.add(
                'GRAB_ITEM',
                # states.HandoverFromHuman(robot, self.bag_arm_designator, "current_item",
                #                          self.current_item,
                #                          arm_configuration=challenge_knowledge.carrying_bag_pose),

                # transitions={'succeeded': 'ARM_DRIVING_POSE',
                #              'timeout': 'BACKUP_CLOSE_GRIPPER',
                #              # For now in simulation timeout is considered a success.
                #              'failed': 'BACKUP_CLOSE_GRIPPER'})
                states.Say(robot, [
                    "I can't pick up the groceries since I don't have arms. Please place them in my basket."
                ],
                           block=True,
                           look_at_standing_person=True),
                transitions={'spoken': 'WAIT_FOR_GRAB_ITEM'})

            smach.StateMachine.add('WAIT_FOR_GRAB_ITEM',
                                   states.WaitTime(robot),
                                   transitions={
                                       'waited': 'SAY_GOING_TO_ROOM',
                                       'preempted': 'Aborted'
                                   })

            # smach.StateMachine.add('BACKUP_CLOSE_GRIPPER',
            #                        states.SetGripper(robot, self.bag_arm_designator, gripperstate=GripperState.CLOSE),
            #                        transitions={'succeeded': 'ARM_DRIVING_POSE',
            #                                     'failed': 'ARM_DRIVING_POSE'})
            #
            # smach.StateMachine.add('ARM_DRIVING_POSE',
            #                        states.ArmToJointConfig(robot, self.bag_arm_designator,
            #                                                challenge_knowledge.driving_bag_pose),
            #                        transitions={'succeeded': 'SAY_GOING_TO_ROOM',
            #                                     'failed': 'SAY_GOING_TO_ROOM'})

            smach.StateMachine.add(
                'SAY_GOING_TO_ROOM',
                states.Say(robot, [
                    "Let me bring in your groceries",
                    "Helping you carry stuff", "I'm going back inside"
                ],
                           block=True,
                           look_at_standing_person=True),
                transitions={'spoken': 'GOTO_DESTINATION'})

            smach.StateMachine.add(
                'GOTO_DESTINATION',
                states.NavigateToSymbolic(
                    robot, {self.target_destination: "in_front_of"},
                    self.target_destination),
                transitions={
                    'arrived': 'PUTDOWN_ITEM',
                    'unreachable': 'TURN_180_TO_REPLAN',
                    # implement avoid obstacle behaviour later
                    'goal_not_defined': 'Aborted'
                })

            smach.StateMachine.add(
                'TURN_180_TO_REPLAN',
                hmc_states.TurnToReplan(robot),
                transitions={
                    'success': 'GOTO_DESTINATION_BACKUP',
                    'abort': 'GOTO_DESTINATION_BACKUP',
                    # implement avoid obstacle behaviour later
                    #'goal_not_defined': 'Aborted'})
                })

            smach.StateMachine.add(
                'GOTO_DESTINATION_BACKUP',
                states.NavigateToSymbolic(
                    robot, {self.target_destination: "in_front_of"},
                    self.target_destination),
                transitions={
                    'arrived': 'PUTDOWN_ITEM',
                    'unreachable': 'PUTDOWN_ITEM',
                    # implement avoid obstacle behaviour later
                    'goal_not_defined': 'Aborted'
                })

            # Put the item (bag) down when the robot has arrived at the "drop-off" location (house).
            smach.StateMachine.add(
                'PUTDOWN_ITEM',
                # hmc_states.DropBagOnGround(robot, self.bag_arm_designator,
                #                            challenge_knowledge.drop_bag_pose),
                states.Say(robot, [
                    "I can't put the groceries down since I have no arms. Please take them from my basket and put it down."
                ],
                           block=True,
                           look_at_standing_person=True),
                transitions={'spoken': 'WAIT_FOR_PUTDOWN_ITEM'})

            smach.StateMachine.add('WAIT_FOR_PUTDOWN_ITEM',
                                   states.WaitTime(robot),
                                   transitions={
                                       'waited': 'ASKING_FOR_HELP',
                                       'preempted': 'Aborted'
                                   })

            smach.StateMachine.add(
                'ASKING_FOR_HELP',
                # TODO: look and then face new operator
                states.Say(
                    robot,
                    "Please follow me and help me carry groceries into the house",
                    block=True,
                    look_at_standing_person=True),
                transitions={'spoken': 'GOTO_CAR'})  #'LEARN_OPERATOR'})

            # smach.StateMachine.add('LEARN_OPERATOR',
            #                        hmc_states.LearnOperator(robot),
            #                        transitions={'learned': 'GOTO_CAR',
            #                                     'failed': 'GOTO_CAR'})

            smach.StateMachine.add(
                'GOTO_CAR',
                states.NavigateToWaypoint(
                    robot, self.car_waypoint,
                    challenge_knowledge.waypoint_car['radius']),

                # TODO: detect closed door
                transitions={
                    'unreachable': 'OPEN_DOOR',
                    'arrived': 'AT_END',
                    'goal_not_defined': 'Aborted'
                })

            smach.StateMachine.add(
                'OPEN_DOOR',
                # TODO: implement functionality
                states.Say(robot, "Please open the door for me"),
                transitions={'spoken': 'GOTO_CAR'})

            smach.StateMachine.add(
                'AT_END',
                states.Say(robot, [
                    "We arrived at the car, goodbye",
                    "You have reached your destination, goodbye",
                    "The car is right here, see you later!"
                ],
                           block=True,
                           look_at_standing_person=True),
                transitions={'spoken': 'Done'})

            ds.analyse_designators(self, "help_me_carry")
    def __init__(self, robot):
        smach.StateMachine.__init__(self, outcomes=['Done', 'Aborted'])

        msg = "\n".join([
            "==============================================",
            "==         CHALLENGE HELP ME CARRY          ==",
            "=============================================="
        ])
        rospy.loginfo("\n" + msg)

        self.target_destination = ds.EntityByIdDesignator(
            robot, id=challenge_knowledge.default_place)

        self.car_waypoint = ds.EntityByIdDesignator(
            robot, id=challenge_knowledge.waypoint_car['id'])

        self.empty_arm_designator = ds.UnoccupiedArmDesignator(
            robot,
            arm_properties={
                "required_goals": [
                    "handover_to_human", "reset",
                    challenge_knowledge.driving_bag_pose,
                    challenge_knowledge.drop_bag_pose
                ],
                "required_gripper_types": [GripperTypes.GRASPING]
            },
            name="empty_arm_designator")

        # With the empty_arm_designator locked, it will ALWAYS resolve to the same arm, unless it is unlocked.
        # For this challenge, unlocking is not needed.

        self.bag_arm_designator = self.empty_arm_designator.lockable()
        self.bag_arm_designator.lock()

        self.place_position = ds.LockingDesignator(EmptySpotDesignator(
            robot,
            self.target_destination,
            arm_designator=self.bag_arm_designator,
            name="placement",
            area=challenge_knowledge.default_area),
                                                   name="place_position")

        # We don't actually grab something, so there is no need for an actual thing to grab
        self.current_item = ds.VariableDesignator(Entity(
            "dummy", "dummy", "/{}/base_link".format(robot.robot_name),
            kdl_conversions.kdl_frame_from_XYZRPY(0.6, 0, 0.5), None, {}, [],
            datetime.datetime.now()),
                                                  name="current_item")

        with self:
            smach.StateMachine.add('INITIALIZE',
                                   states.Initialize(robot),
                                   transitions={
                                       'initialized': 'SET_INITIAL_POSE',
                                       'abort': 'Aborted'
                                   })

            smach.StateMachine.add('SET_INITIAL_POSE',
                                   states.SetInitialPose(
                                       robot,
                                       challenge_knowledge.starting_point),
                                   transitions={
                                       'done': 'FOLLOW_OPERATOR',
                                       "preempted": 'Aborted',
                                       'error': 'FOLLOW_OPERATOR'
                                   })

            # Follow the operator until (s)he states that you have arrived at the "car".
            smach.StateMachine.add('FOLLOW_OPERATOR',
                                   states.FollowOperator(robot,
                                                         operator_timeout=30,
                                                         ask_follow=True,
                                                         learn_face=True,
                                                         replan=True),
                                   transitions={
                                       'stopped': 'ASK_FOR_TASK',
                                       'lost_operator': 'ASK_FOR_TASK',
                                       'no_operator': 'ASK_FOR_TASK'
                                   })

            smach.StateMachine.add('ASK_FOR_TASK',
                                   states.Say(robot,
                                              ["Are we at the car already?"],
                                              block=True,
                                              look_at_standing_person=True),
                                   transitions={'spoken': 'WAIT_FOR_TASK'})

            smach.StateMachine.add(
                'WAIT_FOR_TASK',
                hmc_states.WaitForOperatorCommand(
                    robot,
                    possible_commands=challenge_knowledge.commands.keys(),
                    commands_as_outcomes=True),
                transitions={
                    'no': 'FOLLOW_OPERATOR',
                    'yes': 'REMEMBER_CAR_LOCATION',
                    'abort': 'Aborted'
                })

            smach.StateMachine.add('REMEMBER_CAR_LOCATION',
                                   hmc_states.StoreCarWaypoint(robot),
                                   transitions={
                                       'success': 'ASK_FOR_DESTINATION',
                                       'abort': 'Aborted'
                                   })

            smach.StateMachine.add(
                'ASK_FOR_DESTINATION',
                states.Say(robot, ["Where should I bring the groceries?"],
                           block=True,
                           look_at_standing_person=True),
                transitions={'spoken': 'RECEIVE_DESTINATION'})

            smach.StateMachine.add(
                'RECEIVE_DESTINATION',
                hmc_states.WaitForOperatorCommand(
                    robot,
                    possible_commands=challenge_knowledge.destinations,
                    commands_as_userdata=True,
                    target=self.target_destination),
                transitions={
                    'success': 'GRAB_ITEM',
                    'abort': 'Aborted'
                })

            # Grab the item (bag) the operator hands to the robot, when they are at the "car".
            smach.StateMachine.add(
                'GRAB_ITEM',
                states.HandoverFromHuman(
                    robot,
                    self.bag_arm_designator,
                    "current_item",
                    self.current_item,
                    arm_configuration=challenge_knowledge.carrying_bag_pose),
                transitions={
                    'succeeded': 'ARM_DRIVING_POSE',
                    'timeout': 'BACKUP_CLOSE_GRIPPER',
                    # For now in simulation timeout is considered a success.
                    'failed': 'BACKUP_CLOSE_GRIPPER'
                })

            smach.StateMachine.add('BACKUP_CLOSE_GRIPPER',
                                   states.SetGripper(
                                       robot,
                                       self.bag_arm_designator,
                                       gripperstate=GripperState.CLOSE),
                                   transitions={
                                       'succeeded': 'ARM_DRIVING_POSE',
                                       'failed': 'ARM_DRIVING_POSE'
                                   })

            smach.StateMachine.add('ARM_DRIVING_POSE',
                                   states.ArmToJointConfig(
                                       robot, self.bag_arm_designator,
                                       challenge_knowledge.driving_bag_pose),
                                   transitions={
                                       'succeeded': 'SAY_GOING_TO_ROOM',
                                       'failed': 'SAY_GOING_TO_ROOM'
                                   })

            smach.StateMachine.add(
                'SAY_GOING_TO_ROOM',
                states.Say(robot, [
                    "Let me bring in your groceries",
                    "Helping you carry stuff", "I'm going back inside"
                ],
                           block=True,
                           look_at_standing_person=True),
                transitions={'spoken': 'GOTO_DESTINATION'})

            smach.StateMachine.add(
                'GOTO_DESTINATION',
                states.NavigateToWaypoint(
                    robot, self.target_destination,
                    challenge_knowledge.default_target_radius),
                transitions={
                    'arrived': 'PUTDOWN_ITEM',
                    'unreachable': 'GOTO_DESTINATION_BACKUP',
                    # implement avoid obstacle behaviour later
                    'goal_not_defined': 'Aborted'
                })

            smach.StateMachine.add(
                'GOTO_DESTINATION_BACKUP',
                states.NavigateToWaypoint(
                    robot, self.target_destination,
                    challenge_knowledge.backup_target_radius),
                transitions={
                    'arrived': 'PUTDOWN_ITEM',
                    'unreachable': 'PUTDOWN_ITEM',
                    # implement avoid obstacle behaviour later
                    'goal_not_defined': 'Aborted'
                })

            # Put the item (bag) down when the robot has arrived at the "drop-off" location (house).
            smach.StateMachine.add('PUTDOWN_ITEM',
                                   hmc_states.DropBagOnGround(
                                       robot, self.bag_arm_designator,
                                       challenge_knowledge.drop_bag_pose),
                                   transitions={'done': 'ASKING_FOR_HELP'})

            smach.StateMachine.add(
                'ASKING_FOR_HELP',
                # TODO: look and then face new operator
                states.Say(
                    robot,
                    "Please follow me and help me carry groceries into the house",
                    block=True,
                    look_at_standing_person=True),
                transitions={'spoken': 'GOTO_CAR'})

            smach.StateMachine.add(
                'GOTO_CAR',
                states.NavigateToWaypoint(
                    robot, self.car_waypoint,
                    challenge_knowledge.waypoint_car['radius']),

                # TODO: detect closed door
                transitions={
                    'unreachable': 'OPEN_DOOR',
                    'arrived': 'AT_END',
                    'goal_not_defined': 'Aborted'
                })

            smach.StateMachine.add(
                'OPEN_DOOR',
                # TODO: implement functionality
                states.Say(robot, "Please open the door for me"),
                transitions={'spoken': 'GOTO_CAR'})

            smach.StateMachine.add(
                'AT_END',
                states.Say(robot, [
                    "We arrived at the car, goodbye",
                    "You have reached your destination, goodbye",
                    "The car is right here, see you later!"
                ],
                           block=True,
                           look_at_standing_person=True),
                transitions={'spoken': 'Done'})

            ds.analyse_designators(self, "help_me_carry")