How to Attach Subcomponent with Rootcomponent?

Development Programming & Scripting
1

Hi,

My is about how to attach and actor with sub actors via Rootcomponent to other actors.

.h

UPROPERTY(VisibleAnywhere, Category = Effect)
UParticleSystemComponent* ParticleComponent;

.cpp Constructor

TSubobjectPtr<USceneComponent> SceneComponent = PCIP.CreateDefaultSubobject<USceneComponent>(this, TEXT("FXComponent"));

RootComponent = SceneComponent;
    
TSubobjectPtr<UParticleSystemComponent> ParticleTmp = PCIP.CreateDefaultSubobject<UParticleSystemComponent>(this, TEXT("ParticleComponent"));

ParticleComponent = ParticleTmp;
    
const ConstructorHelpers::FObjectFinder<UParticleSystem> SpawnFXObj(TEXT("ParticleSystem'/Game/Pickups/Particles/P_Sparks.P_Sparks'"));

ParticleComponent->SetTemplate(SpawnFXObj.Object);
ParticleComponent->SetVisibility(true);
ParticleComponent->AttachParent = RootComponent;
ParticleComponent->SetMobility(EComponentMobility::Movable);

.cpp Init

// This is my own Init function which is called after the object is created by spawnactor

void AG1FX::Init(AActor* InOwner)
{
   AttachRootComponentToActor(InOwner, NAME_None, EAttachLocation::SnapToTarget);
}

Problem

The Position of the Rootcomponent is moving with the Actor it snaps to.
The ParticleComponent is not moving.

My solution:

This would require that i attach all components in my class to the other actor which is not very nice.

ParticleComponent->AttachTo(InOwner->GetRootComponent(), NAME_None, EAttachLocation::SnapToTarget);

Question

Is is possible to move the Compoents attached to the Rootcomponent to move with the Rootcomponent?
Maybe i’m missing something…

thx :slight_smile:

2

I think you should use this:

actor->SetRootComponent(YourComponent)

Instad of assigning it directly to RootComponent . That method does more things than just assigning it.