UParticleSystemComponent to UParticleSystem

Development Programming & Scripting C++
1

hi, I am still new in C++.

I create a particle component in an actor, select a particle in BP.

The question is: how do I get from UParticleSystemComponent* to UParticleSystem* so I can use SpawnEmitterAttached().

2

You don’t, the types are unrelated. A ParticleSystemComponent contains a ParticleSystem and plays/stops it etc.

The ParticleSystem is the actual asset in the CB that you want to play.

3

Thanks for the feedback, but SpawnEmitterAttached() with UParticleSystemComponent* variable does not work.
Or please show me how exactly it would work.

4

The UParticleSystem is loaded from content. The ParticleSystemComponent (assuming you are attaching to an actor) is what is spawned at run time. Example:

In the .h file:



// particle system definition
UPROPERTY(EditInstanceOnly)
UParticleSystem* _effectFx = nullptr;

// particle system component spawned at runtime
UPROPERTY(EditInstanceOnly)
UParticleSystemComponent* _effectFxComponent = nullptr;

In the .cpp file:



// load particle system
FString particleEffectPath = "/Game/ParticleEffects/Fire/ElectricFires/ElectricFire";
_effectFx = Cast<UParticleSystem>(StaticLoadObject(UParticleSystem::StaticClass(), NULL, *particleEffectPath));

// play effect
_effectFxComponent = UGameplayStatics::SpawnEmitterAttached(_effectFx,
RootComponent,
NAME_None,
FVector::ZeroVector,
FRotator::ZeroRotator,
EAttachLocation::SnapToTarget,
false);
5

Thanks for the example, in the C++ area less people seem to write.

I don’t know this way, but thanks for that.
I’ll write down my previous way and maybe you can add what I am missing? Would be super nice. I think I am only missing one small step. But I don’t know it.
It’s really hard to teach yourself everything if you don’t fully understand the context.

In .h

UPROPERTY(EditAnywhere)
UParticleSystem* MeinPartikel = nullptr;

UPROPERTY(EditAnywhere)
UParticleSystemComponent* KugelPartikel = nullptr;

In.cpp

KugelPartikel = CreateDefaultSubobject<UParticleSystemComponent>(TEXT(“MeinPartikel”));

UGameplayStatics::SpawnEmitterAttached(MeinPartikel, MeineScene);

//There is still missing the step, that somehow from the component, which has the particle in it, it is filled into the UParticleSystem variable.

6

Lol, I have it. Thanks all.