Adds option to use a rotation of quicksaves instead of having one quicksave slot that needs to be manually created.

src/g_game.cpp

@@ -95,8 +95,9 @@ void	G_DoPlayDemo (void);
 void	G_DoCompleted (void);
 void	G_DoVictory (void);
 void	G_DoWorldDone (void);
-void	G_DoSaveGame (bool okForQuicksave, FString filename, const char *description);
+void	G_DoSaveGame (bool okForQuicksave, bool forceQuicksave, FString filename, const char *description);
 void	G_DoAutoSave ();
+void	G_DoQuickSave ();
 
 void STAT_Serialize(FSerializer &file);
 bool WriteZip(const char *filename, TArray<FString> &filenames, TArray<FCompressedBuffer> &content);
@@ -1059,7 +1060,7 @@ void G_Ticker ()
 			G_DoLoadGame ();
 			break;
 		case ga_savegame:
-			G_DoSaveGame (true, savegamefile, savedescription);
+			G_DoSaveGame (true, false, savegamefile, savedescription);
 			gameaction = ga_nothing;
 			savegamefile = "";
 			savedescription = "";
@@ -2028,6 +2029,14 @@ CUSTOM_CVAR (Int, autosavecount, 4, CVAR_ARCHIVE|CVAR_GLOBALCONFIG)
 	if (self < 0)
 		self = 0;
 }
+CVAR (Int, quicksavenum, -1, CVAR_NOSET|CVAR_ARCHIVE|CVAR_GLOBALCONFIG)
+static int lastquicksave = -1;
+CVAR (Bool, quicksaverotation, false, CVAR_ARCHIVE|CVAR_GLOBALCONFIG)
+CUSTOM_CVAR (Int, quicksaverotationcount, 4, CVAR_ARCHIVE|CVAR_GLOBALCONFIG)
+{
+	if (self < 1)
+		self = 1;
+}
 
 void G_DoAutoSave ()
 {
@@ -2061,7 +2070,35 @@ void G_DoAutoSave ()
 
 	readableTime = myasctime ();
 	description.Format("Autosave %s", readableTime);
-	G_DoSaveGame (false, file, description);
+	G_DoSaveGame (false, false, file, description);
+}
+
+void G_DoQuickSave ()
+{
+	FString description;
+	FString file;
+	// Keeps a rotating set of quicksaves
+	UCVarValue num;
+	const char *readableTime;
+	int count = quicksaverotationcount != 0 ? quicksaverotationcount : 1;
+	
+	if (quicksavenum < 0) 
+	{
+		lastquicksave = 0;
+	}
+	else
+	{
+		lastquicksave = (quicksavenum + 1) % count;
+	}
+
+	num.Int = lastquicksave;
+	quicksavenum.ForceSet (num, CVAR_Int);
+
+	file = G_BuildSaveName ("quick", lastquicksave);
+
+	readableTime = myasctime ();
+	description.Format("Quicksave %s", readableTime);
+	G_DoSaveGame (true, true, file, description);
 }
 
 
@@ -2166,7 +2203,7 @@ static void PutSavePic (FileWriter *file, int width, int height)
 	}
 }
 
-void G_DoSaveGame (bool okForQuicksave, FString filename, const char *description)
+void G_DoSaveGame (bool okForQuicksave, bool forceQuicksave, FString filename, const char *description)
 {
 	TArray<FCompressedBuffer> savegame_content;
 	TArray<FString> savegame_filenames;
@@ -2282,7 +2319,7 @@ void G_DoSaveGame (bool okForQuicksave, FString filename, const char *descriptio
 
 	WriteZip(filename, savegame_filenames, savegame_content);
 
-	savegameManager.NotifyNewSave (filename, description, okForQuicksave);
+	savegameManager.NotifyNewSave (filename, description, okForQuicksave, forceQuicksave);
 
 	// delete the JSON buffers we created just above. Everything else will
 	// either still be needed or taken care of automatically.

src/g_game.h

@@ -82,6 +82,8 @@ void G_DoLoadGame (void);
 
 // Called by M_Responder.
 void G_SaveGame (const char *filename, const char *description);
+// Called by messagebox
+void G_DoQuickSave ();
 
 // Only called by startup code.
 void G_RecordDemo (const char* name);

src/menu/loadsavemenu.cpp

@@ -318,7 +318,7 @@ DEFINE_ACTION_FUNCTION(FSavegameManager, ReadSaveStrings)
 //
 //=============================================================================
 
-void FSavegameManager::NotifyNewSave(const FString &file, const FString &title, bool okForQuicksave)
+void FSavegameManager::NotifyNewSave(const FString &file, const FString &title, bool okForQuicksave, bool forceQuicksave)
 {
 	FSaveGameNode *node;
 
@@ -342,7 +342,7 @@ void FSavegameManager::NotifyNewSave(const FString &file, const FString &title,
 			node->bMissingWads = false;
 			if (okForQuicksave)
 			{
-				if (quickSaveSlot == nullptr) quickSaveSlot = node;
+				if (quickSaveSlot == nullptr || forceQuicksave) quickSaveSlot = node;
 				LastAccessed = LastSaved = i;
 			}
 			return;
@@ -358,7 +358,7 @@ void FSavegameManager::NotifyNewSave(const FString &file, const FString &title,
 
 	if (okForQuicksave)
 	{
-		if (quickSaveSlot == nullptr) quickSaveSlot = node;
+		if (quickSaveSlot == nullptr || forceQuicksave) quickSaveSlot = node;
 		LastAccessed = LastSaved = index;
 	}
 }

src/menu/menu.h

@@ -84,7 +84,7 @@ public:
 private:
 	int InsertSaveNode(FSaveGameNode *node);
 public:
-	void NotifyNewSave(const FString &file, const FString &title, bool okForQuicksave);
+	void NotifyNewSave(const FString &file, const FString &title, bool okForQuicksave, bool forceQuicksave);
 	void ClearSaveGames();
 
 	void ReadSaveStrings();

src/menu/messagebox.cpp

@@ -44,6 +44,7 @@
 #include "vm.h"
 
 EXTERN_CVAR (Bool, saveloadconfirmation) // [mxd]
+EXTERN_CVAR (Bool, quicksaverotation)
 
 typedef void(*hfunc)();
 DEFINE_ACTION_FUNCTION(DMessageBoxMenu, CallHandler)
@@ -174,6 +175,13 @@ CCMD (quicksave)
 
 	if (gamestate != GS_LEVEL)
 		return;
+
+	// If the quick save rotation is enabled, it handles the save slot.
+	if (quicksaverotation)
+	{
+		G_DoQuickSave();
+		return;
+	}
 		
 	if (savegameManager.quickSaveSlot == NULL)
 	{

wadsrc/static/menudef.txt

@@ -1182,6 +1182,8 @@ OptionMenu "MiscOptions" protected
 	Option "$MISCMNU_ENABLEAUTOSAVES",			"disableautosave", "Autosave"
 	Option "$MISCMNU_SAVELOADCONFIRMATION",			"saveloadconfirmation", "OnOff"
 	Slider "$MISCMNU_AUTOSAVECOUNT",			"autosavecount", 1, 20, 1, 0
+	Option "$MISCMNU_QUICKSAVEROTATION",			"quicksaverotation", "OnOff"
+	Slider "$MISCMNU_QUICKSAVECOUNT",			"quicksaverotationcount", 1, 20, 1, 0
 	Option "$MISCMNU_DEHLOAD",					"dehload", "dehopt"
 	Option "$MISCMNU_ENABLESCRIPTSCREENSHOTS",		"enablescriptscreenshot", "OnOff"
 	Option "$MISCMNU_INTERSCROLL",				"nointerscrollabort", "OffOn"