Changeset 104:c68b54a43501

Timestamp:

12/20/10 11:22:26 (5 years ago)

Author:

Daniil Alexeyevsky <me.dendik@òÀæ>

Branch:

default

Children:

106:bfd8f8d778a8, 109:7352863453bc

Message:

Rule.rotate now accepts target direction, not number of times to rotate

File:

• snake.py (modified) (1 diff)

snake.py

@@ -123 +123 @@
         return True
 
-    def rotate (self, rot):
-        """Rotate rule pattern `rot` times counterclockwise."""
-        for i in range(((rot % 4) + 4) % 4):
+    def rotate (self, direction):
+        """Rotate rule pattern to head in `direction`."""
+        for i in range(4):
+            if self.direction == direction:
+                return
             self.rotate_ccw()
+        raise AssertionError("Illegal direction: %s" % direction)
 
     def rotate_ccw(self):