Casting from a parent class to a TSubclassOf

[friberger]

I have this function to select a weapon

void AShooterCharacter::SelectWeapon(TSubclassOf<AWeapon> WeaponClass)
{
    if (CurrentWeapon)
    {
        CurrentWeapon->Destroy(true);
    }

    CurrentWeapon = GetWorld()->SpawnActor<AWeapon>(WeaponClass); 
    CurrentWeapon->AttachToComponent(Mesh1P, FAttachmentTransformRules(EAttachmentRule::SnapToTarget, true), TEXT("GripPoint"));
}

However I want to add a check so that if CurrentWeapon is of the same subclass as WeaponClass, I just return. What would be the solution to this? I was thinking that it could be possible to try to cast CurrentWeapon to the WeaponClass, but I’m not sure how to do that, since WeaponClass is a TSubClassOf?

[HAF-Blade]

Tried this?

Best way to check class type in C++

Lets take a look at the below snippet of code: //Check if there's a valid object to grab if (actorHit != NULL) { //Retain a reference to the owning character and the grabbed item. myOwningCharacter = Cast<ABaseCharacter>(actorThatIsGrabbing); myGrabbedItem = Cast<ABaseItem>(actorHit); if(Cast<ABaseWeapon>(myGrabbedItem) != NULL) { this->GrabWeapon(myGrabbedItem); } else { this->GrabItem(myGrabbedItem); } } As you can see, we are checking to see if myGrabbedItem is …

[Zeblote]

You probably want to do something like

if (CurrentWeapon && CurrentWeapon->GetClass() == WeaponClass)
{
    return;
}

This will ensure that you can still switch between “variants” of a weapon made using further subclasses, if you’re doing that sort of thing.

[friberger]

That did the trick, thank you! I’ve been trying to wrap my head around classes and TSubclassOf and their differences but at least this made it work!