void be_normal(); /**< switch to state STATE_NORMAL */
void turn_around(); /**< reverse direction, assumes we are in STATE_NORMAL */
bool can_see(const MovingObject& o); /**< check if we can see o */
void be_normal(); /**< switch to state STATE_NORMAL */
void turn_around(); /**< reverse direction, assumes we are in STATE_NORMAL */
bool can_see(const MovingObject& o); /**< check if we can see o */