import turtle as t

john = t.Turtle()

john.shape("turtle")

john.fillcolor("blue")

john.pencolor("blue")

screen = t.Screen()

john.penup()

john.setposition(-200,200)

john.pendown()

for x in range(4):

john.fd(400)

john.right(90)

john.penup()

john.setposition(0,0)

def define_action(john):

if john.xcor() < 200 and john.ypos()> 200:

return 1

if john.xcor() > 200 and john.ypos()> 200:

return 3

if john.xcor() > 200 and john.ypos() < -200:

return 5

if john.xcor() < -200 and john.ypos()<-200:

return 7

if john.ycor() > 200: return 2

if john.xcor() > 200: return 4

if john.ycor() < -200: return 6

if john.xcor() < -200: return 8

return 9

def action(john):

item = define_action()

john.write(item, font=("Arial", 64, "normal"))

if item == 1: john.setposition(-199,199)

if item == 3: john.setposition(199,199)

if item == 5: john.setposition(199,-199)

if item == 7: john.setposition(-199,-199)

if item == 2: john.setposition(john.xcor(), 199)

if item == 4: john.setposition(199, john.ycor())

if item == 6: john.setposition(john.xcor(),-199)

if item == 8: john.setposition(-199, john.ycor())

def move_forward():

john.pencolor("blue")

john.forward(10)

def move_backward():

john.pencolor("white")

john.backward(10)

def turn_right():

john.right(10)

def turn_left():

john.left(10)

def clear_screen():

john.clear()

def start_draw():

john.pendown()

def stop_draw():

john.penup()

screen.onkey(move_forward, "Up")

screen.onkey(move_backward, "Down")

screen.onkey(turn_right, "Right")

screen.onkey(turn_left, "Left")

screen.onkey(clear_screen, "c")

screen.onkey(stop_draw, "u")

screen.onkey(start_draw, "d")

screen.listen()