How to get value from another class member?

[Marcna1]

@DanM

The question was how are you setting this Grabber variable that you are using. Grab and Release are member functions of UGrabber .

then I dont know what you mean. I added the grabber component in bp_player as component

Then in code like in this post

How to get value from another class member?

I tried like this but the engine crash when I try to access the member value in UE_LOG line TriggerComponent.h public: UTriggerComponent(); UGrabber* Grabber; TriggerComponent.cpp void UTriggerComponent::TickComponent(float DeltaTime, ELevelTick TickType, FActorComponentTickFunction* ThisTickFunction) { Super::TickComponent(DeltaTime, TickType, ThisTickFunction); AActor* Actor = GetAcceptedActor(); if (Actor == nullptr) return; Grabber = Actor->FindComponentByClass<UGrabber>(); …

[DanM]

void UTriggerComponent::BeginPlay()
{
    Super::BeginPlay();

    APawn* Player = UGameplayStatics::GetPawn(this, 0);
    Grabber = Player->FindComponentByClass<UGrabber>();
}

[Marcna1]

Thanks @DanM small edit to use GetPlayerPawn and it work great.

Now just for learning is there a way in C++ without using FindComponentByClass and UGameplayStatics.GetPlayerPawn ? in @ VeryClumsySloth solution ?. In his solution Grabber always nullptr

So I tried to use new operator in begin play but then I found this great topic

How to create pointer of UCLASS object with new operator?

I will do some reading and try to use NewObject

[DanM]

Like I said earlier, that’s not possible. Also he grabber is already dynamically allocated and newing your bool sn’t going to change anything about how you get it.

You could make the member on the grabber static. Static member variables are essentially global variables.