コード例 #1
0
void UGameEngine::Init(IEngineLoop* InEngineLoop)
{
	DECLARE_SCOPE_CYCLE_COUNTER(TEXT("UGameEngine Init"), STAT_GameEngineStartup, STATGROUP_LoadTime);

	// Call base.
	UEngine::Init(InEngineLoop);

#if USE_NETWORK_PROFILER
	FString NetworkProfilerTag;
	if( FParse::Value(FCommandLine::Get(), TEXT("NETWORKPROFILER="), NetworkProfilerTag ) )
	{
		GNetworkProfiler.EnableTracking(true);
	}
#endif

	// Load all of the engine modules that we need at startup that are not editor-related
	UGameEngine::LoadRuntimeEngineStartupModules();

	// Load and apply user game settings
	GetGameUserSettings()->LoadSettings();
	GetGameUserSettings()->ApplyNonResolutionSettings();

	// Create game instance.  For GameEngine, this should be the only GameInstance that ever gets created.
	{
		FStringClassReference GameInstanceClassName = GetDefault<UGameMapsSettings>()->GameInstanceClass;
		UClass* GameInstanceClass = (GameInstanceClassName.IsValid() ? LoadObject<UClass>(NULL, *GameInstanceClassName.ToString()) : UGameInstance::StaticClass());
		
		GameInstance = NewObject<UGameInstance>(this, GameInstanceClass);

		GameInstance->InitializeStandalone();
	}
 
//  	// Creates the initial world context. For GameEngine, this should be the only WorldContext that ever gets created.
//  	FWorldContext& InitialWorldContext = CreateNewWorldContext(EWorldType::Game);

	// Initialize the viewport client.
	UGameViewportClient* ViewportClient = NULL;
	if(GIsClient)
	{
		ViewportClient = NewObject<UGameViewportClient>(this, GameViewportClientClass);
		ViewportClient->Init(*GameInstance->GetWorldContext(), GameInstance);
		GameViewport = ViewportClient;
		GameInstance->GetWorldContext()->GameViewport = ViewportClient;
	}

	bCheckForMovieCapture = true;

	// Attach the viewport client to a new viewport.
	if(ViewportClient)
	{
		// This must be created before any gameplay code adds widgets
		bool bWindowAlreadyExists = GameViewportWindow.IsValid();
		if (!bWindowAlreadyExists)
		{
			GameViewportWindow = CreateGameWindow();
		}

		CreateGameViewport( ViewportClient );

		if( !bWindowAlreadyExists )
		{
			SwitchGameWindowToUseGameViewport();
		}

		FString Error;
		if(ViewportClient->SetupInitialLocalPlayer(Error) == NULL)
		{
			UE_LOG(LogEngine, Fatal,TEXT("%s"),*Error);
		}

		UGameViewportClient::OnViewportCreated().Broadcast();
	}

	GameInstance->StartGameInstance();


	UE_LOG(LogInit, Display, TEXT("Game Engine Initialized.") );

	// for IsInitialized()
	bIsInitialized = true;
}
コード例 #2
0
void UGameEngine::Init(IEngineLoop* InEngineLoop)
{
	DECLARE_SCOPE_CYCLE_COUNTER(TEXT("UGameEngine Init"), STAT_GameEngineStartup, STATGROUP_LoadTime);

	// Call base.
	UEngine::Init(InEngineLoop);

#if USE_NETWORK_PROFILER
	FString NetworkProfilerTag;
	if( FParse::Value(FCommandLine::Get(), TEXT("NETWORKPROFILER="), NetworkProfilerTag ) )
	{
		GNetworkProfiler.EnableTracking(true);
	}
#endif

	// Load and apply user game settings
	GetGameUserSettings()->LoadSettings();
	GetGameUserSettings()->ApplySettings();

	// Creates the initial world context. For GameEngine, this should be the only WorldContext that ever gets created.
	FWorldContext &InitialWorldContext = CreateNewWorldContext(EWorldType::Game);

	// Initialize the viewport client.
	UGameViewportClient* ViewportClient = NULL;
	if(GIsClient)
	{
		ViewportClient = ConstructObject<UGameViewportClient>(GameViewportClientClass,this);
		ViewportClient->SetReferenceToWorldContext(InitialWorldContext);
		GameViewport = ViewportClient;
		InitialWorldContext.GameViewport = ViewportClient;
	}

	bCheckForMovieCapture = true;

	// Attach the viewport client to a new viewport.
	if(ViewportClient)
	{
		// This must be created before any gameplay code adds widgets
		bool bWindowAlreadyExists = GameViewportWindow.IsValid();
		if (!bWindowAlreadyExists)
		{
			GameViewportWindow = CreateGameWindow();
		}

		CreateGameViewport( ViewportClient );

		if( !bWindowAlreadyExists )
		{
			SwitchGameWindowToUseGameViewport();
		}
		FString Error;
		if(!ViewportClient->Init(Error))
		{
			UE_LOG(LogEngine, Fatal,TEXT("%s"),*Error);
		}
	}

	// Create default URL.
	// @note:  if we change how we determine the valid start up map update LaunchEngineLoop's GetStartupMap()
	FURL DefaultURL;
	DefaultURL.LoadURLConfig( TEXT("DefaultPlayer"), GGameIni );

	// Enter initial world.
	EBrowseReturnVal::Type BrowseRet = EBrowseReturnVal::Failure;
	FString Error;
	TCHAR Parm[4096]=TEXT("");
	const TCHAR* Tmp = FCommandLine::Get();

#if UE_BUILD_SHIPPING
	// In shipping don't allow an override
	Tmp = TEXT("");
#endif // UE_BUILD_SHIPPING

	const UGameMapsSettings* GameMapsSettings = GetDefault<UGameMapsSettings>();
	const FString& DefaultMap = GameMapsSettings->GetGameDefaultMap();
	if (!FParse::Token(Tmp, Parm, ARRAY_COUNT(Parm), 0) || Parm[0] == '-')
	{
		FCString::Strcpy(Parm, *(DefaultMap + GameMapsSettings->LocalMapOptions));
	}
	FURL URL( &DefaultURL, Parm, TRAVEL_Partial );
	if( URL.Valid )
	{
		BrowseRet = Browse(InitialWorldContext, URL, Error );
	}

	// If waiting for a network connection, go into the starting level.
	if (BrowseRet != EBrowseReturnVal::Success && FCString::Stricmp(Parm, *DefaultMap) != 0)
	{
		const FText Message = FText::Format( NSLOCTEXT("Engine", "MapNotFound", "The map specified on the commandline '{0}' could not be found. Would you like to load the default map instead?"), FText::FromString( URL.Map ) );

		// the map specified on the command-line couldn't be loaded.  ask the user if we should load the default map instead
		if ( FCString::Stricmp(*URL.Map, *DefaultMap) != 0 &&
			FMessageDialog::Open( EAppMsgType::OkCancel, Message ) != EAppReturnType::Ok)
		{
			// user canceled (maybe a typo while attempting to run a commandlet)
			FPlatformMisc::RequestExit( false );
			return;
		}
		else
		{
			BrowseRet = Browse(InitialWorldContext, FURL(&DefaultURL, *(DefaultMap + GameMapsSettings->LocalMapOptions), TRAVEL_Partial), Error);
		}
	}

	// Handle failure.
	if( BrowseRet != EBrowseReturnVal::Success )
	{
		UE_LOG(LogLoad, Fatal, TEXT("%s"), *FString::Printf( TEXT("Failed to enter %s: %s. Please check the log for errors."), Parm, *Error) );
	}
	UE_LOG(LogInit, Display, TEXT("Game Engine Initialized.") );

	// for IsInitialized()
	bIsInitialized = true;
}