public bool Set_Robotic_Wall(GameObject r_wall)
    {
        this.robotic_wall = r_wall;
        if (r_wall.GetComponent <Wall_To_Target>() != null)
        {
            this.wallToTarget_controller = r_wall.GetComponent <Wall_To_Target>();
        }
        else
        {
            return(false);
        }

        if (r_wall.GetComponent <RoombaFeedback_Test>() != null)
        {
            this.roomba_controller = r_wall.GetComponent <RoombaFeedback_Test>();
        }
        else
        {
            return(false);
        }

        if (r_wall.GetComponent <RoombaFeedback_Velocity>() != null)
        {
            this.roomba_controller_vel = r_wall.GetComponent <RoombaFeedback_Velocity>();
        }
        else
        {
            return(false);
        }

        return(true);
    }