How to expose a class to the editor?

Development Programming & Scripting
1

How could I expose a class to the editor, so it would be editable the same way blueprint-actors can (adding a object to it, for instance). And by that I don’t mean adding objects to it in-game, but rather in the editor (for instance, adding player a collision capsule. It is always there, so might as well have it added there through the editor). I hope you understand what I mean.

2

You can’t do this because when you create a new Blueprint what you’re really doing is creating a new class. What you can do is create a base class in code and use this as a base class when you create a new Blueprint. You might need to specify the class as Blueprintable, though if your base class inherits from Actor it should already be specified.

3

A sample here, hope it answer to you question :

.h

UCLASS()
class ADeck : public AActor
{
	GENERATED_UCLASS_BODY()

	UPROPERTY(VisibleAnywhere, BlueprintReadOnly, Category = Default)
		TSubobjectPtr<class UStaticMeshComponent> StaticMeshComponent;

    UPROPERTY(VisibleAnywhere, BlueprintReadOnly, Category = Default)
	TArray<AActor*> AllCardsActor;

	UFUNCTION(BlueprintCallable, Category = Default)
		void InitDeck();
};

.cpp

ADeck::ADeck(const class FPostConstructInitializeProperties& PCIP)
	: Super(PCIP)
{

	StaticMeshComponent = PCIP.CreateDefaultSubobject<UStaticMeshComponent>(this, TEXT("Static Mesh Component"));
	StaticMeshComponent->bOwnerNoSee = false;
	StaticMeshComponent->bCastDynamicShadow = false;
	StaticMeshComponent->CastShadow = false;
	StaticMeshComponent->BodyInstance.SetObjectType(ECC_WorldDynamic);
	StaticMeshComponent->BodyInstance.SetCollisionEnabled(ECollisionEnabled::QueryAndPhysics);
	StaticMeshComponent->BodyInstance.SetResponseToAllChannels(ECR_Block);
	StaticMeshComponent->bGenerateOverlapEvents = false;
	StaticMeshComponent->SetHiddenInGame(false);

	RootComponent = StaticMeshComponent;
}
void ADeck::InitDeck()
{
...
}

In the editor, you can create a blueprint based on this class. they all have this Static mesh component as root component.

Cheers

4

okay, I’ll give it a shot :slight_smile: