Amazing - part 4

As you most likely found out, we were too hasty in asking Reeborg to move forward after putting down a beeper. We need to check if there is a wall preventing him from moving first. Here's a solution to the problem.

def turn_right():
    repeat(turn_left, 3)

put_beeper()

# begin changes
if not front_is_clear():
    turn_left()
# end changes
move()
while not next_to_a_beeper():
    if right_is_clear():
        turn_right()
        move()
    elif front_is_clear():
        move()
    else:
        turn_left()

turn_off()

Test it now and see that it works. Can you imagine situations where it might not work?

Amazing - part3 - - Amazing - part 5