Merge pull request idmillington#9 from juhana/master

Exposing interactivity state

docs/src/API.md

@@ -1094,6 +1094,12 @@ games will not load correctly. A player may save their game at one
 point and find most of their progress wiped out when they load it
 again.
 
+If your game has elements that should not be triggered while Undum is
+replaying a saved game, for example sound effects or popup notifications,
+you can use `undum.isInteractive()` to test whether the game is being
+played normally (returns `true`) or being loaded from a save game
+(returns `false`).
+
 
 # Translation and Internationalization
 
@@ -1211,4 +1217,4 @@ spec!
 ## 2011-08-18
 
 - Added support for functions in the `content` and `header` of a
-  `SimpleSituation` (credit: David Eyk).
+  `SimpleSituation` (credit: David Eyk).

games/media/js/undum.js

@@ -1313,6 +1313,8 @@
         QualityGroup: QualityGroup,
 
         game: game,
+
+        isInteractive: function() { return interactive; },
 
         // The undum set of translated strings.
         language: {}