avoid refresh when cairo context is none

1 files changed, 2 insertions, 1 deletions

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 '''