--- a/src/newgrf.h	Wed Jun 13 12:05:56 2007 +0000
+++ b/src/newgrf.h	Tue Jun 19 07:21:01 2007 +0000
@@ -88,14 +88,14 @@
 extern SpriteID _signal_base;
 extern SpriteID _coast_base;
 
-enum GRFLoadedFeatures {
-	GRFLOADED_2CC,             // Set if any vehicle is loaded which uses 2cc (two company colours).
-	GRFLOADED_NEWHOUSES,       // Set if there are any newhouses loaded.
-	GRFLOADED_NEWINDUSTRIES,   // Set if there are any newindustries loaded.
+struct GRFLoadedFeatures {
+	bool has_2CC;             ///< Set if any vehicle is loaded which uses 2cc (two company colours).
+	bool has_newhouses;       ///< Set if there are any newhouses loaded.
+	bool has_newindustries;   ///< Set if there are any newindustries loaded.
 };
 
 /* Indicates which are the newgrf features currently loaded ingame */
-extern uint8 _loaded_newgrf_features;
+extern GRFLoadedFeatures _loaded_newgrf_features;
 
 void LoadNewGRFFile(GRFConfig *config, uint file_index, GrfLoadingStage stage);
 void LoadNewGRF(uint load_index, uint file_index);