Why physics handle is not rotating grabbed object?

Development World Creation
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1

Hello!
I have a physics handle component that is grabbing another static mesh, the setTargetLocation is working properly the object changes location, however I was expecting that the object would rotate around his center of mass by default when floating in air, right?

That’s not happening, I have done setSimulatePhysics true on the grabbed mesh as well.

Here is my physics handle current settings:

342505-settings.png

And here is my code:

The c++ class that contains the mesh to be grabbed:

AGameCube::AGameCube()
{
 	// Set this actor to call Tick() every frame.  You can turn this off to improve performance if you don't need it.
	PrimaryActorTick.bCanEverTick = true;

	UStaticMesh* cubeMesh = nullptr;
	static ConstructorHelpers::FObjectFinder<UStaticMesh> CubeMeshAsset(TEXT("/Game/Meshes/GameCube"));
	if (CubeMeshAsset.Succeeded()) {
		cubeMesh = CubeMeshAsset.Object;
	}

	CubeMesh = CreateDefaultSubobject<UStaticMeshComponent>(TEXT("GameCube"), false);
	if(CubeMesh && cubeMesh) {
		CubeMesh->SetStaticMesh(cubeMesh);
	}

	CubeMesh->SetSimulatePhysics(true);	
	CubeMesh->SetCollisionObjectType(ECollisionChannel::ECC_PhysicsBody);
	CubeMesh->SetCollisionResponseToChannel(ECollisionChannel::ECC_PhysicsBody, ECollisionResponse::ECR_Overlap);
	CubeMesh->SetWorldScale3D(FVector(1.f,1.f,1.f));
	CubeMesh->SetMassOverrideInKg(NAME_None, 50.f);	

	SetRootComponent(CubeMesh);

}

Here I am grabbing the object:

void UGrabber::Grab()
{	
	FHitResult Hit = GetFirstPhysicsBodyInReach();	
	UPrimitiveComponent* ComponentToGrab = Hit.GetComponent();	
	AActor* ActorHit = Hit.GetActor();

	if (ActorHit)
	{
		if(!PhysicsHandle)
		{
			UE_LOG(LogTemp, Error, TEXT("Gonna return no Physics Handle"));
			return;
		}		

		AGameCube* GameCube = Cast<AGameCube>(Hit.GetActor());	
		
		
		FVector Location;
		FRotator Rotation;
		GetWorld()->GetFirstPlayerController()->GetPlayerViewPoint(OUT Location, OUT Rotation);

		FVector newLoc = (Location + Rotation.Vector() * Reach);
		FVector compLoc = ComponentToGrab->GetComponentLocation();

	

		float distance = FVector::Dist(newLoc, compLoc);
		Reach = Reach - distance;
		PhysicsHandle->GrabComponentAtLocation(ComponentToGrab, NAME_None, compLoc);
	}
	
}

And here is the tick function to update the location of the grabbed object:

void UGrabber::TickComponent(float DeltaTime, ELevelTick TickType, FActorComponentTickFunction* ThisTickFunction)
{
	Super::TickComponent(DeltaTime, TickType, ThisTickFunction);

	if(!PhysicsHandle)
	{
		return;
	}

	

	if (PhysicsHandle->GrabbedComponent)
	{
		FVector Location;
		FRotator Rotation;
		GetWorld()->GetFirstPlayerController()->GetPlayerViewPoint(OUT Location, OUT Rotation);
		

		//Ray-cast out to a certain distance (reach)	
		FVector newDestination = (Location + Rotation.Vector() * Reach);
		

		PhysicsHandle->SetTargetLocation(newDestination);

		
	}

	
}
2

You need to use GrabComponentAtLocationWithRotation

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