Added REOPEN script type. These scripts behave just like OPEN scripts, except they will re-execute themselves every time the level is re-entered (ie as part of a hub).

src/g_level.cpp

@@ -1291,6 +1291,9 @@ void G_FinishTravel ()
 		if (level.FromSnapshot)
 		{
 			FBehavior::StaticStartTypedScripts (SCRIPT_Return, pawn, true);
+
+			// [Nash] run REOPEN scripts upon map re-entry
+			FBehavior::StaticStartTypedScripts(SCRIPT_Reopen, NULL, false);
 		}
 	}
 

src/p_acs.cpp

@@ -2822,7 +2822,8 @@ void FBehavior::StaticStartTypedScripts (WORD type, AActor *activator, bool alwa
 		"Lightning",
 		"Unloading",
 		"Disconnect",
-		"Return"
+		"Return",
+		"Reopen"
 	};
 	DPrintf(DMSG_NOTIFY, "Starting all scripts of type %d (%s)\n", type,
 		type < countof(TypeNames) ? TypeNames[type] : TypeNames[SCRIPT_Lightning - 1]);

src/p_acs.h

@@ -272,6 +272,7 @@ enum
 	SCRIPT_Return		= 15,
 	SCRIPT_Event		= 16, // [BB]
 	SCRIPT_Kill			= 17, // [JM]
+	SCRIPT_Reopen		= 18, // [Nash]
 };
 
 // Script flags