import turtle as t

player1 = t.Turtle()

player1.shape("turtle")

player1.pencolor("white")

speed = 10

angle = 10

screen = t.Screen()

def draw_rectangle(player, x, y, width, height, color):

startpos = player.pos()

startcolor = player.pencolor()

player.pencolor(color)

player.up()

player.goto(x, y)

player.down()

player.forward(width)

player.left(90)

player.forward(height)

player.left(90)

player.forward(width)

player.left(90)

player.forward(height)

player.left(90)

player.up()

player.goto(startpos)

player.down()

player.pencolor(startcolor)

draw_rectangle(player1, -210, -210, 420, 420, "red")

def position(player):

if player.xcor() >= 200 :

player.up()

player.goto(199, player.ycor())

player.down()

    return False

if player.xcor() <= -200:

player.up()

player.goto(-199, player.ycor())

player.down()

    return False

if player.ycor() >= 200:

player.up()

player.goto(player.xcor(), 199)

player.down()

    return False

if player.ycor() <= -200:

player.up()

player.goto(player.xcor(), -199)

player.down()

    return False

return True

def f():

if position(player1): player1.forward(speed)

def b():

if position(player1): player1.backward(speed)

def r(): player1.right(angle)

def l(): player1.left(angle)

screen.onkey(f, "Up")

screen.onkey(b, "Down")

screen.onkey(r, "Right")

screen.onkey(l, "Left")

screen.listen()