(svn r14158) -Codechange: Initialization of rail type data from static source, so data can be changed.

src/newgrf.cpp

@@ -5422,6 +5422,9 @@ static void ResetNewGRFData()
 	/* Copy/reset original bridge info data */
 	ResetBridges();
 
+	/* Reset rail type information */
+	ResetRailTypes();
+
 	/* Allocate temporary refit/cargo class data */
 	_gted = CallocT<GRFTempEngineData>(GetEnginePoolSize());
 

src/rail.h

@@ -237,4 +237,9 @@ RailType GetBestRailtype(const PlayerID p);
  */
 RailTypes GetPlayerRailtypes(const PlayerID p);
 
+/**
+ * Reset all rail type information to its default values.
+ */
+void ResetRailTypes();
+
 #endif /* RAIL_H */

src/rail_cmd.cpp

@@ -54,6 +54,19 @@
 #include "table/railtypes.h"
 #include "table/track_land.h"
 
+RailtypeInfo _railtypes[RAILTYPE_END];
+
+assert_compile(sizeof(_original_railtypes) <= sizeof(_railtypes));
+
+/**
+ * Initialize rail type information.
+ */
+void ResetRailTypes()
+{
+	memset(_railtypes, 0, sizeof(_railtypes));
+	memcpy(_railtypes, _original_railtypes, sizeof(_original_railtypes));
+}
+
 const byte _track_sloped_sprites[14] = {
 	14, 15, 22, 13,
 	 0, 21, 17, 12,

src/table/railtypes.h

@@ -9,7 +9,7 @@
 
 /** Global Railtype definition
  */
-RailtypeInfo _railtypes[] = {
+static const RailtypeInfo _original_railtypes[] = {
 	/** Railway */
 	{ /* Main Sprites */
 		{ SPR_RAIL_TRACK_Y, SPR_RAIL_TRACK_N_S, SPR_RAIL_TRACK_BASE, SPR_RAIL_SINGLE_Y, SPR_RAIL_SINGLE_X,