How to spawn Actor from string path to Actor Blueprint?

Development Programming & Scripting Blueprint
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1

I got my self to this point:

			FStringAssetReference itemRef = "Class'/Game/Blueprints/Items/Chest/chestBlue.chestBlue_C'";

			UObject* itemObj = itemRef.ResolveObject();

			AARArmor* item = GetWorld()->SpawnActor<AARArmor>(itemObj->GetClass(), SpawnInfo);

And the first two lines work.
When inspecting in debugger itemObj, UClass is pointing the the right blueprint.

But SpawnActor is returning null. What I’m doing wrong ?

2

I figured it out:

			FStringAssetReference itemRef = "Blueprint'/Game/Blueprints/Items/Chest/chestBlue.chestBlue'";

			UObject* itemObj = itemRef.ResolveObject();
			
			UBlueprint* gen = Cast<UBlueprint>(itemObj);

			AARArmor* item = GetWorld()->SpawnActor<AARArmor>(gen->GeneratedClass, SpawnInfo);

All that is needed, is to create UBlueprint (figures…) and then just get GeneratedClass. You can shorten it by directly casting to UBlueprint.

3

I found that the ResolveObject always returns NULL because the blueprint is not yet loaded.
So I added the following before the Resolve…


TArray LoadedObjects;

if (EngineUtils::FindOrLoadAssetsByPath( selAssets[i].PackagePath.ToString(), LoadedObjects, EngineUtils::ATL_Class))
{
    // Do the resolve here...
}