Implement Hellfire multiplayer saves

Source/items.cpp

@@ -3101,6 +3101,7 @@ void items_427ABA(int x, int y)
 			dItem[x][y] = ii + 1;
 			itemavail[0] = itemavail[MAXITEMS - numitems - 1];
 			itemactive[numitems] = ii;
+			gbIsHellfireSaveGame = gbIsHellfire;
 			UnPackItem(&PkSItem, &item[ii]);
 			item[ii]._ix = x;
 			item[ii]._iy = y;

Source/pack.cpp

@@ -114,6 +114,7 @@ void PackPlayer(PkPlayerStruct *pPack, int pnum, BOOL manashield)
 	pPack->pDifficulty = SwapLE32(pPlayer->pDifficulty);
 	pPack->pDamAcFlags = SwapLE32(pPlayer->pDamAcFlags);
 	pPack->pDiabloKillLevel = SwapLE32(pPlayer->pDiabloKillLevel);
+	pPack->bIsHellfire = gbIsHellfire;
 
 	if (!gbIsMultiplayer || manashield)
 		pPack->pManaShield = SwapLE32(pPlayer->pManaShield);

Source/pack.h

@@ -64,19 +64,19 @@ typedef struct PkPlayerStruct {
 	Sint8 pBattleNet;
 	Uint8 pManaShield;
 	Uint8 pDungMsgs2;
-	Sint8 bReserved[2];
+	Sint8 bIsHellfire;
+	Sint8 bReserved; // For future use
 	Uint16 wReflections;
-	Sint16 wReserved2;
+	Sint16 wReserved2;  // For future use
 	Sint8 pSplLvl2[10]; // Hellfire spells
-	Sint16 wReserved8;
+	Sint16 wReserved8;  // For future use
 	Uint32 pDiabloKillLevel;
 	Sint32 pDifficulty;
 	Sint32 pDamAcFlags;
-	Sint32 dwReserved[5];
+	Sint32 dwReserved[5]; // For future use
 } PkPlayerStruct;
 #pragma pack(pop)
 
-
 void PackPlayer(PkPlayerStruct *pPack, int pnum, BOOL manashield);
 void UnPackPlayer(PkPlayerStruct *pPack, int pnum, BOOL killok);
 void PackItem(PkItemStruct *id, ItemStruct *is);

Source/pfile.cpp

@@ -279,6 +279,8 @@ BOOL pfile_ui_set_hero_infos(BOOL (*ui_add_hero_info)(_uiheroinfo *))
 				_uiheroinfo uihero;
 				strcpy(hero_names[i], pkplr.pName);
 				bool hasSaveGame = pfile_archive_contains_game(archive, i);
+				if (!hasSaveGame)
+					gbIsHellfireSaveGame = pkplr.bIsHellfire;
 				UnPackPlayer(&pkplr, 0, FALSE);
 				game_2_ui_player(plr, &uihero, hasSaveGame);
 				ui_add_hero_info(&uihero);
@@ -394,6 +396,8 @@ void pfile_read_player_from_save()
 		app_fatal("Unable to load character");
 
 	gbValidSaveFile = pfile_archive_contains_game(archive, save_num);
+	if (!gbValidSaveFile)
+		gbIsHellfireSaveGame = pkplr.bIsHellfire;
 	UnPackPlayer(&pkplr, myplr, FALSE);
 	pfile_SFileCloseArchive(archive);
 }