# HG changeset patch
# User Stefano Rivera <stefano@rivera.za.net>
# Date 1316031248 -7200
# Node ID 3a652f048f57a971c8712848d6a173ba783bba0d
# Parent  066198428ee90005ffc56e1ca7c628706439a47d
Tssss, I smell rats

diff -r 066198428ee9 -r 3a652f048f57 mamba/snake.py
--- a/mamba/snake.py	Wed Sep 14 22:12:01 2011 +0200
+++ b/mamba/snake.py	Wed Sep 14 22:14:08 2011 +0200
@@ -1,5 +1,7 @@
 """The player snake object."""
 
+import random
+
 from pygame.sprite import Group, spritecollide
 
 from mamba.constants import TILE_SIZE, UP, DOWN, LEFT, RIGHT
@@ -70,7 +72,7 @@
             tile_state = self.head.get_tile_state()
             shifted, ds = self.head.shift_head(ds)
             if shifted:
-                self.head.mouth_close()
+                self.head.shifted_tile()
             else:
                 break
             if self.pending_segments:
@@ -187,6 +189,9 @@
         self.set_tile_pos(tile_pos)
         self.orientation = orientation
 
+    def shifted_tile(self):
+        pass
+
     def shift_pixels(self, distance):
         """Shift this segment a number of pixels."""
         dx, dy = self.orientation
@@ -226,6 +231,14 @@
         self.make_images()
         self.update_image()
 
+    def shifted_tile(self):
+        if random.random() < 0.02:
+            self.mouth_open()
+            self.tongue_out()
+        else:
+            self.mouth_close()
+            self.tongue_in()
+
     def shift_head(self, ds):
         """Shift the head a number of pixels in the direction of it
         orientation.