stop shaking camera if dead diablo loaded from save. (#4149)

Source/diablo.cpp

@@ -789,7 +789,7 @@ void RunGameLoop(interface_mode uMsg)
 	EventHandler previousHandler = SetEventHandler(GameEventHandler);
 	run_delta_info();
 	gbRunGame = true;
-	gbProcessPlayers = true;
+	gbProcessPlayers = IsDiabloAlive(true);
 	gbRunGameResult = true;
 
 	RedrawEverything();
@@ -2980,4 +2980,15 @@ void diablo_color_cyc_logic()
 	}
 }
 
+bool IsDiabloAlive(bool playSFX)
+{
+	if (Quests[Q_DIABLO]._qactive == QUEST_DONE && !gbIsMultiplayer) {
+		if (playSFX)
+			PlaySFX(USFX_DIABLOD);
+		return false;
+	}
+
+	return true;
+}
+
 } // namespace devilution

Source/diablo.h

@@ -94,6 +94,7 @@ void diablo_focus_unpause();
 bool PressEscKey();
 void DisableInputEventHandler(const SDL_Event &event, uint16_t modState);
 void LoadGameLevel(bool firstflag, lvl_entry lvldir);
+bool IsDiabloAlive(bool playSFX);
 
 /**
  * @param bStartup Process additional ticks before returning

Source/loadsave.cpp

@@ -2212,7 +2212,7 @@ void LoadGame(bool firstflag)
 	missiles_process_charge();
 	RedoMissileFlags();
 	NewCursor(CURSOR_HAND);
-	gbProcessPlayers = true;
+	gbProcessPlayers = IsDiabloAlive(!firstflag);
 
 	if (gbIsHellfireSaveGame != gbIsHellfire) {
 		SaveGame();