save project

snake.py

@@ -56,6 +56,9 @@ while True:
     else:
         y += 30
     position.append((x, y))
+
+    if x<0 or x>630 or y < 0 or y > 450:
+        exit()
     
     if x == apple_X and y == apple_Y:
         apple_X = random.randint(1,22)* 30 - 30