Compnents from C++ not shown correct in BP

Development Programming & Scripting C++
1

Hello guys,

I´m currently struggling with a minor problem but it gets more and more annoying.
Suddenly the Details Panel looks “weird” after I created some Components by C++ Code.
I don´t even know exactly how to describe it but Pictures say more than 1000 Words so I attached some of what it looks like, how i wrote it in C++ and what I´m used to get.
The red marked Areas are the interesting parts.

This only occurs on Components that were created by Code, not for those which are added by Blueprint.

I noticed that they were not shown in the Components Tab on the left-lower side. Did I forgot to add them to some kind of components list?

Thank you very much! :slight_smile:

2

Looks like you forgot create those components in the constructor.

In header file something like this:



UCLASS()
class MEDIEVALTALES_API ALantern : public AActor
{
	GENERATED_BODY()
	
public:	

	UPROPERTY(VisibleDefaultsOnly, BlueprintReadOnly, Category = "Components")
	class UStaticMeshComponent* mesh;

	UPROPERTY(VisibleDefaultsOnly, BlueprintReadOnly, Category = "Components")
	class UPointLightComponent* light;

public:

	// Sets default values for this actor's properties
	ALantern();
}

And in *.cpp file something like this:



// Sets default values
ALantern::ALantern()
{
	PrimaryActorTick.bCanEverTick = true;
	PrimaryActorTick.TickInterval = GameConstants::Intervals::Fps15;

	RootComponent = CreateDefaultSubobject<USceneComponent>(TEXT("Root"));

	mesh = CreateDefaultSubobject<UStaticMeshComponent>(TEXT("Mesh"));
	if (mesh)
	{
		// setup mesh here
		mesh->AttachParent = RootComponent;
	}

	light = CreateDefaultSubobject<UPointLightComponent>(TEXT("Light"));
	if (light)
	{
		// setup light here
		light->AttachParent = RootComponent;
	}
}
3

Oh, I totally forgot to send the .cpp also. That´s not it. I already created them in the constructor.



// Sets default values
AAB_Player::AAB_Player()
{
 	// Set this pawn to call Tick() every frame.  You can turn this off to improve performance if you don't need it.
	PrimaryActorTick.bCanEverTick = true;

	DefaultSceneComponent = CreateDefaultSubobject<USceneComponent>(TEXT("Default"));
	PlayerCamera = CreateDefaultSubobject<UCameraComponent>(TEXT("PlayerCamera"));
	Controller_Left = CreateDefaultSubobject<UMotionControllerComponent>(TEXT("Controller_Left"));
	Controller_Right = CreateDefaultSubobject<UMotionControllerComponent>(TEXT("Controller_Right"));
	Mesh_Left = CreateDefaultSubobject<UStaticMeshComponent>(TEXT("Mesh_Left"));
	Mesh_Right = CreateDefaultSubobject<UStaticMeshComponent>(TEXT("Mesh_Right"));

	RootComponent = DefaultSceneComponent;
	PlayerCamera->AttachTo(RootComponent);
	Controller_Left->AttachTo(RootComponent);
	Mesh_Left->AttachTo(Controller_Left);
	Controller_Right->AttachTo(RootComponent);
	Mesh_Right->AttachTo(Controller_Right);

	Controller_Left->Hand = EControllerHand::Left;
	Controller_Right->Hand = EControllerHand::Right;

	PlayerCamera->SetRelativeLocation(FVector(0.0f, 0.0f, 175.0f));
	Controller_Left->SetRelativeLocation(FVector(0.0f, -40.0f, 100.0f));
	Controller_Right->SetRelativeLocation(FVector(0.0f, 40.0f, 100.0f));
}
4

Perhaps you need to use those UPROPERTY parameters:
UPROPERTY(VisibleDefaultsOnly, BlueprintReadOnly, Category = “Components”)
Other code looks right.

5

Okay, that fixxed it. I tested the different UPROPERTY Statements and the one that helped was “VisibleDefaultsOnly” instead of “EditAnywhere”. Now it looks like I wanted it to look.

Thank you very much! :slight_smile: