(39) 's Extra Blueprint Nodes for You as a Plugin, No C++ Required!

[AlexM]

@;387524

Dear Community,

The code in node was first presented by Epic staff, Marc Audy, as code used in Fortnite.

I’ve fully implemented the code as well as making it user-friendly.

In particular I’ve presented a solution for ensuring you can spawn multiple instances of the same UE4 level, by giving you an “Instance Number” that you should increment each you spawn an instance of a level.

allows me to enable you to easily create as many uniquely translated and rotated instances of a level as you want!

is ideal for Dynamic Level Generation!

**Can Include Landscapes and Other Fancy Level Features!**

In my demo I included a landscape in my level "tile."

Level Scripting / Level Blueprint

You can also include level scripting that will run uniquely per level isntance!

**Victory Load Level Instance**

![LoadLevelInst_BPNode.jpg|1280x960](upload://eYkmDTa1zneQsdBlRoVY7LDd06i.jpeg)

C++ Code For You

Here’s my implemenation of the code Marc Audy originally presented to the Community, exactly as it is in my Victory BP Library:

bool UVictoryBPFunctionLibrary::VictoryLoadLevelInstance(
	UObject* WorldContextObject, 
	FString MapFolderOffOfContent, 
	FString LevelName, 
	int32 InstanceNumber,
	FVector Location, FRotator Rotation)
{
    if(!WorldContextObject) return false;
	 
	UWorld* const World = GEngine->GetWorldFromContextObject(WorldContextObject);
	if(!World) return false;
	//~~~~~~~~~~~
 
	//Full Name
	FString FullName = "/Game/" + MapFolderOffOfContent + "/" + LevelName;
	  
	FName LevelFName = FName(*FullName);
    FString PackageFileName = FullName;   
	
    ULevelStreamingKismet* StreamingLevel = NewObject<ULevelStreamingKismet>((UObject*)GetTransientPackage(), ULevelStreamingKismet::StaticClass());
 
	if(!StreamingLevel)
	{
		return false;
	}
	
	//Long Package Name
	FString LongLevelPackageName = FPackageName::FilenameToLongPackageName(PackageFileName);
	
	**//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
	// Here is where a unique name is chosen for the new level asset
	//    Ensure unique names to gain ability to have multiple instances of same level!
	//	   <3**
	
	//Create Unique Name based on BP-supplied instance value
	FString UniqueLevelPackageName = LongLevelPackageName;
	UniqueLevelPackageName += "_VictoryInstance_" + FString::FromInt(InstanceNumber);
     
    //Set!
    StreamingLevel->SetWorldAssetByPackageName(FName(*UniqueLevelPackageName));
	**//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~**
	 
    if (World->IsPlayInEditor())
    {
        FWorldContext WorldContext = GEngine->GetWorldContextFromWorldChecked(World);
        StreamingLevel->RenameForPIE(WorldContext.PIEInstance);
    }
 
    StreamingLevel->LevelColor = FColor::MakeRandomColor();
    StreamingLevel->bShouldBeLoaded = true;
    StreamingLevel->bShouldBeVisible = true;
    StreamingLevel->bShouldBlockOnLoad = false;
    StreamingLevel->bInitiallyLoaded = true;
    StreamingLevel->bInitiallyVisible = true;
 
	//Transform
    StreamingLevel->LevelTransform = FTransform(Rotation,Location);
 
    StreamingLevel->PackageNameToLoad = LevelFName;
          
    if (!FPackageName::DoesPackageExist(StreamingLevel->PackageNameToLoad.ToString(), NULL, &PackageFileName))
    {        
        return false;
    }
  
	//~~~
	
	//Actual map package to load
	StreamingLevel->PackageNameToLoad = FName(*LongLevelPackageName);
	
	//~~~
	
    // Add the new level to world.
    World->StreamingLevels.Add(StreamingLevel);
     
    return true;
 }	

**Latest plugin download on the UE4 Wiki: **
https://wiki.unrealengine.com/File:VictoryPlugin.zip

**Latest plugin packaged binaries, Win32 Shipping and Win64 Development on UE4 Wiki: **
https://wiki.unrealengine.com/File:VictoryPluginPackaged.zip

Victory Plugin on Media Fire

If your browser is not updating the Wiki download page to the most recent version, you can use my alternative Media Fire download link!

Please note clicking link will not start a download instantly, it will just take you to the Media Fire file description.

Editor binaries and Packaged binaries in one file:
Win32 Shipping and Win64 Development Supported
VictoryPlugin

**Note on Packaging Victory Plugin**

https://forums.unrealengine.com/showthread.php?3851-(39)--s-Extra-Blueprint-Nodes-for-You-as-a-Plugin-No-C-Required!&p=368790&viewfull=1#post368790

Enjoy!

:)

Thanks for . I’ve been working on my own similar solution for the last few weeks in my spare and while I got something working I find your method a better implementation than what I had going.

The only thing I notice is that the level loaded callback doesn’t seem to work when using your method. Do you have any idea why is? Right now I use that to determine when the levels are loaded and streamed in so I can do the next step in my process.

Here is my original function in which the callback did fire.

void ADreamProjectGameMode::SetupNonStreamingLevelLoad()
{  
	auto positionOffset = FVector();
	auto mapNames = GetAllMapNames();
	for (auto mapName : mapNames)
	{ 
		FString fullMapPath = FString::Printf(TEXT("/Game/Rooms/Maps/%s"), *mapName);
		UE_LOG(LogTemp, Warning, TEXT("Loading level %s"), *fullMapPath); 
		ULevelStreaming* pStreaming = UGameplayStatics::GetStreamingLevel((), *fullMapPath);

		if (pStreaming)
		{
			UE_LOG(LogTemp, Warning, TEXT("Streaming level setup for %s with transform offset of %f "), *fullMapPath, positionOffset.Y);
			//pStreaming->LevelTransform = FTransform(positionOffset); 
			pStreaming->bShouldBeLoaded = true;
			pStreaming->bShouldBeVisible = true;
			pStreaming->OnLevelLoaded.AddDynamic(, &ADreamProjectGameMode::OnLevelLoaded);
			numLevelsToLoad++;
			positionOffset.X += 10;
		}
		else
		{
			UE_LOG(LogTemp, Warning, TEXT("Unable toload map %s"), *fullMapPath);
		}
	} 
}