How to initiate a subclass of AActor with FHitResult?

[CXS66 (Zachary)]

For starter, I’m new to Unreal and c++.

I want my player to interacted with certain object like light switch or object to pick up. So I created a class AInteractableObj : public AActor with a function void Activate().

In an other class UInteract : public USceneComponent, I shoot a ray with SweepSingleByChannel() to see if it Hit an interactable object. if it’s true I want to be able to call Activate().

Now here’s my problem, when I try:

	FHitResult HitResult;
	bool bHasHit = CanInteractDistance(HitResult);

	if(bHasHit)
	{
		AInteractableObj InteractableObj;
		InteractableObj = HitResult.GetActor();
		InteractableObj.Activate();
	}

it tells me that I cannot initiate an AInteractableObj with an AActor*, which is fair enought. But how should I do it?

[EgoidLee (MiddleAgeWorker)]

Unreal seems to be does not support de-activated actors detection by Raycast, As I know of. If you use Hide View mode it is better to be close to the answer. Thanks.

[Extrone (Arjun Subhash)]

HitResult.GetActor() returns an AActor, not AInteractableObj.

you’ll need to cast to AInteractableObj to use the Activate() function.

InteractableObj = Cast<AInteractableObj>(HitResult.GetActor());