Added a background image to the menu.

robotgame/jukebox.py

@@ -26,7 +26,6 @@ The jukebox. Handles playback of background music.
 
 import os
 import pygame
-import random
 
 class Jukebox(object):
     """Create an object to handle music playback."""
@@ -37,11 +36,9 @@ class Jukebox(object):
 
     def play(self):
         pygame.mixer.music.load(
-            os.path.join(self.music_dir,
-                         self.music_files[self.iterator
-                                          % len(self.music_files)]))
+            os.path.join(self.music_dir, self.music_files[self.iterator]))
         pygame.mixer.music.play()
-        self.iterator += 1
+        self.iterator = (self.iterator + 1) % len(self.music_files)
 
     def stop(self):
         pygame.mixer.music.stop()