I’ve been having an issue where I’m having trouble finding out how I can reference a component (example here of a spiring arm) from a blueprint. Anyone know how this can be achieved?
So your blueprint class has a spring arm and this needs to be accessed from c++ right?
If you have actor reference already and have one component below should work already, more than one component think FindComponents should work too.
spring = ActorRef->FindComponentByClass<USpringArmComponent>();
If your target actor is self (this), then it means your blueprint is derived from same class?
You have a AMyCharacterClass or actor which has a spring variable defined, you can add component in constructor already, if you want can pinpoint you to that direction.
springarm= CreateDefaultSubobject<USpringArmComponent>(TEXT("MySpringArm"));
You don’t have to add the component from the blueprint already however if you add and use
spring = FindComponentByClass<USpringArmComponent>();
It shouldn’t be null at all. I suspect your TargetActor is not “This” .. if they are same you can just create a subobject already.
Are you sure that your actor (class reference) is “this”, try accessing your actor like below
TSubclassOf < AActor > ActorClass;
AActor* TargetActor = UGameplayStatics::GetActorOfClass(GetWorld(), ActorClass);
if (TargetActor)
{
USpringArmComponent* spring = TargetActor->FindComponentByClass<USpringArmComponent>();
if (spring)
{
UE_LOG(LogTemp, Warning, TEXT("Found Spring Arm at target actor"));
}
else
{
UE_LOG(LogTemp, Warning, TEXT("Cannot access spring arm on target Actor"));
}
}
else
{
UE_LOG(LogTemp, Warning, TEXT("No Actor Found"));
}
}
Just be sure that target actor is right and has already a spring arm assigned.
Welcome to the forums btw, let me know your further questions around it.
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I was trying to mimic unity in where you could declare a public camera object and then select the camera outside of the script, but I think I might just go with the create default sub object.
actually figured it out right after posting this
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