From 00ff55b029effc241aec89cc5c51f4b088aeb88a Mon Sep 17 00:00:00 2001
From: Walter Bender <walter.bender@gmail.com>
Date: Wed, 29 Feb 2012 14:25:58 +0000
Subject: avoid refresh when cairo context is none

---
diff --git a/game.py b/game.py
index 4a4926a..28f31b0 100644
--- a/game.py
+++ b/game.py
@@ -502,7 +502,8 @@ class Game():
         cr.clip()
 
         # Refresh sprite list
-        self.sprites.redraw_sprites(cr=cr)
+        if cr is not None:
+            self.sprites.redraw_sprites(cr=cr)
 
     def _destroy_cb(self, win, event):
         ''' This is the end '''
--
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