OnOverlapBegin fires only once, while OnOverlapEnd fires every time UE5

Development Programming & Scripting
1

Hi,
I have a problem with overlap functions. I’m using FPS template, and I want to display a massage to the player when he wants to pick up a weapon. So, I added OnSphereEndOverlap function (OnSphereBeginOverlap was already there). My problem is that OnSphereBeginOverlap works only once, while OnSphereEndOverlap works every time I move away from the weapon, and I don’t know why.

Edit: I don’t want to fire EndOverlap once, but I want to fire BeginOverlap every time

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

	// Register our Overlap Event
	OnComponentBeginOverlap.AddDynamic(this, &UTP_PickUpComponent::OnSphereBeginOverlap);
	OnComponentEndOverlap.AddDynamic(this, &UTP_PickUpComponent::OnSphereEndOverlap);
}

void UTP_PickUpComponent::OnSphereBeginOverlap(UPrimitiveComponent* OverlappedComponent, AActor* OtherActor, UPrimitiveComponent* OtherComp, int32 OtherBodyIndex, bool bFromSweep, const FHitResult& SweepResult)
{
	// Checking if it is a First Person Character overlapping
	AFPSOpenWorldCharacter* Character = Cast<AFPSOpenWorldCharacter>(OtherActor);
	if(Character != nullptr)
	{
		Character->bCanShowPickUpUMG = true;
		GEngine->AddOnScreenDebugMessage(-1, 5.0f, FColor::Red, TEXT("Begin"));

		// Notify that the actor is being picked up
		OnPickUp.Broadcast(Character);

		// Unregister from the Overlap Event so it is no longer triggered
		OnComponentBeginOverlap.RemoveAll(this);
	}
}

void UTP_PickUpComponent::OnSphereEndOverlap(UPrimitiveComponent* OverlappedComp, AActor* OtherActor, UPrimitiveComponent* OtherComp, int32 OtherBodyIndex)
{
	AFPSOpenWorldCharacter* Character = Cast<AFPSOpenWorldCharacter>(OtherActor);
	if (Character != nullptr)
	{
		Character->bCanClosePickUpUMG = true;
		GEngine->AddOnScreenDebugMessage(-1, 5.0f, FColor::Red, TEXT("End"));
	}
}
2

I think, you need to remove binding for OnComponentEndOverlap too.
In function OnSphereEndOverlap, try this.

if (Character != nullptr)
{
	Character->bCanClosePickUpUMG = true;
	GEngine->AddOnScreenDebugMessage(-1, 5.0f, FColor::Red, TEXT("End"));
  	OnComponentEndOverlap.RemoveAll(this);
}
3

If you wnat to fire every time,
In function OnSphereBeginOverlap, remove that line

// Unregister from the Overlap Event so it is no longer triggered
OnComponentBeginOverlap.RemoveAll(this);
4

Thank you, it works now.