The turtle dosen't get out of the carpet

jacovirt/jacovirt/jacobot.py

@@ -1,4 +1,4 @@
-from turtle import *
+import turtle
 
 """host = "192.168.20.49"
 channel = "LPH"
@@ -9,68 +9,90 @@ r = redis.Redis(host=host)
 p = r.pubsub()
 p.psubscribe(channel)
 """
+
+DISTANCE = 84
+X_START = -210
+Y_START = 194
+
+angle = 0
+
+def cubetto_init():
+    turtle.bgpic("fond.png")
+    turtle.register_shape("Cubetto_forme_haut.gif")
+    turtle.register_shape("Cubetto_forme_bas.gif")
+    turtle.register_shape("Cubetto_forme_gauche.gif")
+    turtle.register_shape("Cubetto_forme_droite.gif")
+    turtle.shape("Cubetto_forme_droite.gif")
+    turtle.shapesize(3,3,6)
+    turtle.penup()
+    turtle.goto(-210,194)
+
+def cubetto_forme_init():
+    global angle
+    if angle == 360 or angle == -360:
+        angle=0
+    if angle == 0:
+        turtle.shape("Cubetto_forme_droite.gif")
+    if angle == 90 or angle == -270:
+        turtle.shape("Cubetto_forme_haut.gif")
+    if angle == 180 or angle == -180:
+        turtle.shape("Cubetto_forme_gauche.gif")
+    if angle == 270 or angle == -90:
+        turtle.shape("Cubetto_forme_bas.gif")
+
+def cubetto_forward():
+    turtle.forward(DISTANCE)
+    print(turtle.pos())
+
+    if turtle.xcor() < X_START-1:
+        turtle.backward(DISTANCE)
+        print("Sortie a gauche")
+
+    elif turtle.xcor() > X_START+DISTANCE*5:
+        turtle.backward(DISTANCE)
+        print("Sortie a droit")
+
+    elif turtle.ycor() > Y_START+1:
+        turtle.backward(DISTANCE)
+        print("Sortie en haut")
+    
+    elif turtle.ycor() < Y_START-DISTANCE*5:
+        turtle.backward(DISTANCE)
+        print("Sotrie en bas")
+ 
+def cubetto_left():
+    global angle
+    turtle.left(90)
+    angle += 90
+    cubetto_forme_init()
+
+def cubetto_right():
+    global angle
+    turtle.right(90)
+    angle -= 90
+    cubetto_forme_init()
+
+def cubetto_backward():
+    turtle.right(180)
+    turtle.forward(84)
+    turtle.right(180)
+
+cubetto_init()
+
 def main():
-
-    angle = 0
-
-    def cubetto_init():
-        
-        bgpic("fond.png")
-        register_shape("Cubetto_forme_haut.gif")
-        register_shape("Cubetto_forme_bas.gif")
-        register_shape("Cubetto_forme_gauche.gif")
-        register_shape("Cubetto_forme_droite.gif")
-        shape("Cubetto_forme_droite.gif")
-        shapesize(3,3,6)
-        penup()
-        goto(-210,194)
-
-    def cubetto_forme_init():
-        global angle
-        if angle == 360 or angle == -360:
-            angle=0
-        if angle == 0:
-            shape("Cubetto_forme_droite.gif")
-        if angle == 90 or angle == -270:
-            shape("Cubetto_forme_haut.gif")
-        if angle == 180 or angle == -180:
-            shape("Cubetto_forme_gauche.gif")
-        if angle == 270 or angle == -90:
-            shape("Cubetto_forme_bas.gif")
-
-    def cubetto_forward():
-        forward(84)
-
-    def cubetto_left():
-        global angle
-        left(90)
-        angle += 90
-        cubetto_forme_init()
-
-    def cubetto_right():
-        global angle
-        right(90)
-        angle -= 90
-        cubetto_forme_init()
-
-    def cubetto_backward():
-        right(180)
-        forward(84)
-        right(180)
-
-    cubetto_init()
-
     while True:
-        message = []
-        
-        if message == "FORDWARD":
+        message = input("Action : ")
+        if message == "f":
             cubetto_forward()
-        elif message == "LEFT":
+        elif message == "l":
             cubetto_left()
-        elif message == "RIGHT":
+        elif message == "r":
             cubetto_right()
         elif message == "i":
             cubetto_init()  
         elif message == "FUNCTION":
             pass
 
+
+
+main()