AGI: Optionally enable copy protection in Software Farm's Gold Rush

This version doesn't actually include the necessary documentation to pass the copy protection, but it may still be fun for owners of it (like me!) to see what it looked like.
eriktorbjorn · Aug 5, 2024 · ae360c1 · ae360c1
1 parent bb89abb
commit ae360c1
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Showing 4 changed files with 24 additions and 1 deletion.
diff --git a/engines/agi/cycle.cpp b/engines/agi/cycle.cpp
@@ -39,6 +39,14 @@ namespace Agi {
  * @param n room number
  */
 void AgiEngine::newRoom(int16 newRoomNr) {
+	// The Software Farm re-release of Gold Rush doesn't show the copy
+	// protection screen. In fact, it doesn't even include the "California
+	// Gold" book. But the copy protection is still present in the game
+	// data files, so allow it to be enabled.
+	if (getGameID() == GID_GOLDRUSH && _game.curLogicNr == 129 && newRoomNr == 73 && ConfMan.getBool("copy_protection")) {
+		newRoomNr = 125;
+	}
+
 	ScreenObjEntry *screenObjEgo = &_game.screenObjTable[SCREENOBJECTS_EGO_ENTRY];
 
 	// Loading trigger

diff --git a/engines/agi/detection.h b/engines/agi/detection.h
@@ -43,6 +43,7 @@ struct AGIGameDescription {
 #define GAMEOPTION_USE_HERCULES_FONT          GUIO_GAMEOPTIONS4
 #define GAMEOPTION_COMMAND_PROMPT_WINDOW      GUIO_GAMEOPTIONS5
 #define GAMEOPTION_APPLE2GS_ADD_SPEED_MENU    GUIO_GAMEOPTIONS6
+#define GAMEOPTION_COPY_PROTECTION            GUIO_GAMEOPTIONS7
 	// TODO: properly implement GAMEOPTIONs
 
 } // End of namespace Agi

diff --git a/engines/agi/detection_tables.h b/engines/agi/detection_tables.h
@@ -24,6 +24,7 @@
 namespace Agi {
 
 #define GAMEOPTIONS_DEFAULT                   GUIO4(GAMEOPTION_ORIGINAL_SAVELOAD,GAMEOPTION_DISABLE_MOUSE,GAMEOPTION_USE_HERCULES_FONT,GAMEOPTION_COMMAND_PROMPT_WINDOW)
+#define GAMEOPTIONS_DEFAULT_COPY_PROTECTION   GUIO5(GAMEOPTION_ORIGINAL_SAVELOAD,GAMEOPTION_DISABLE_MOUSE,GAMEOPTION_USE_HERCULES_FONT,GAMEOPTION_COMMAND_PROMPT_WINDOW, GAMEOPTION_COPY_PROTECTION)
 #define GAMEOPTIONS_AMIGA                     GUIO4(GAMEOPTION_ORIGINAL_SAVELOAD,GAMEOPTION_AMIGA_ALTERNATIVE_PALETTE,GAMEOPTION_USE_HERCULES_FONT,GAMEOPTION_COMMAND_PROMPT_WINDOW)
 #define GAMEOPTIONS_APPLE2GS                  GUIO5(GAMEOPTION_ORIGINAL_SAVELOAD,GAMEOPTION_DISABLE_MOUSE,GAMEOPTION_USE_HERCULES_FONT,GAMEOPTION_COMMAND_PROMPT_WINDOW, GAMEOPTION_APPLE2GS_ADD_SPEED_MENU)
 #define GAMEOPTIONS_VGA                       GUIO5(GAMEOPTION_ORIGINAL_SAVELOAD,GAMEOPTION_DISABLE_MOUSE,GAMEOPTION_USE_HERCULES_FONT,GAMEOPTION_COMMAND_PROMPT_WINDOW,GUIO_RENDERVGA)
@@ -130,6 +131,7 @@ namespace Agi {
 #define BOOTER2(id,extra,fname,md5,size,ver,gid) GAME_LVFPN(id,extra,fname,md5,size,Common::EN_ANY,ver,0,gid,Common::kPlatformDOS,GType_V2,GAMEOPTIONS_DEFAULT)
 #define GAME(id,extra,md5,ver,gid) GAME_LVFPN(id,extra,"logdir",md5,AD_NO_SIZE,Common::EN_ANY,ver,0,gid,Common::kPlatformDOS,GType_V2,GAMEOPTIONS_DEFAULT)
 #define GAME3(id,extra,fname,md5,ver,gid) GAME_LVFPN(id,extra,fname,md5,AD_NO_SIZE,Common::EN_ANY,ver,0,gid,Common::kPlatformDOS,GType_V3,GAMEOPTIONS_DEFAULT)
+#define GAME3_COPY_PROTECTION(id,extra,fname,md5,ver,gid) GAME_LVFPN(id,extra,fname,md5,AD_NO_SIZE,Common::EN_ANY,ver,0,gid,Common::kPlatformDOS,GType_V3,GAMEOPTIONS_DEFAULT_COPY_PROTECTION)
 #define GAME3_PIRATED(id,extra,fname,md5,ver,gid) GAME_LVFPN_PIRATED(id,extra,fname,md5,AD_NO_SIZE,Common::EN_ANY,ver,0,gid,Common::kPlatformDOS,GType_V3,GAMEOPTIONS_DEFAULT)
 
 #define GAME_P(id,extra,md5,ver,gid,platform) GAME_LVFPN(id,extra,"logdir",md5,AD_NO_SIZE,Common::EN_ANY,ver,0,gid,platform,GType_V2,GAMEOPTIONS_DEFAULT)
@@ -349,7 +351,7 @@ static const AGIGameDescription gameDescriptions[] = {
 	GAME3_PIRATED("goldrush", "2.01 1988-12-22", "grdir", "1ef85c37fcf7224f9731f20f169c8c53", 2399, GID_GOLDRUSH),
 
 	// Gold Rush! (PC 3.5", bought from The Software Farm) 3.0 1998-12-22 [AGI 3.002.149]
-	GAME3("goldrush", "3.0 1998-12-22 3.5\"", "grdir", "6882b6090473209da4cd78bb59f78dbe", 0x3149, GID_GOLDRUSH),
+	GAME3_COPY_PROTECTION("goldrush", "3.0 1998-12-22 3.5\"", "grdir", "6882b6090473209da4cd78bb59f78dbe", 0x3149, GID_GOLDRUSH),
 
 	{
 		// Gold Rush! (Mac) 2.01 12/22/88 [AGI 3.002.149]

diff --git a/engines/agi/metaengine.cpp b/engines/agi/metaengine.cpp
@@ -177,6 +177,18 @@ static const ADExtraGuiOptionsMap optionsList[] = {
 		}
 	},
 
+	{
+		GAMEOPTION_COPY_PROTECTION,
+		{
+			_s("Enable copy protection"),
+			_s("Enable copy protection that had was disabled in this version of the game"),
+			"copy_protection",
+			false,
+			0,
+			0
+		}
+	},
+
 	AD_EXTRA_GUI_OPTIONS_TERMINATOR
 };