# HG changeset patch
# User Simon Cross <hodgestar+bzr@gmail.com>
# Date 1283120174 -7200
# Node ID 168e9424fe91ca8a07317beb43ec693146d59c93
# Parent  0b33a502660cb7c786dc02194f57c4924f42d3dc
Perform a deepcopy of INITIAL_DATA to allow mutable initial data to be used safely.

diff -r 0b33a502660c -r 168e9424fe91 gamelib/state.py
--- a/gamelib/state.py	Sun Aug 29 21:35:05 2010 +0200
+++ b/gamelib/state.py	Mon Aug 30 00:16:14 2010 +0200
@@ -1,5 +1,7 @@
 """Utilities and base classes for dealing with scenes."""
 
+import copy
+
 from albow.resource import get_image, get_font
 from albow.utils import frame_rect
 from widgets import BoomLabel
@@ -236,7 +238,9 @@
     def __init__(self):
         self.data = {}
         if self.INITIAL_DATA:
-            self.data.update(self.INITIAL_DATA)
+            # deep copy of INITIAL_DATA allows lists, sets and
+            # other mutable types to safely be used in INITIAL_DATA
+            self.data.update(copy.deepcopy(self.INITIAL_DATA))
 
     def set_data(self, key, value):
         self.data[key] = value