GetSocketLocation returning local position

Development Programming & Scripting Blueprint
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1

Hello,
I have my character, who is the owner of the weapon item which has a socket callled Fire_Position. This is where the projectile is supposed to be launched from. From what I understand GetSocketLocation() should return the position of that socket in world space where i can then spawn the projectile. But what has happened is it is giving me the location of the socket relative to the skeletal mesh bone of the weapon. I have no idea why it is happening. Here is my code:

FActorSpawnParameters params;
params.Owner = this;
params.Instigator = Instigator;
 AAmmunitionItem* projectile =  GetWorld()->SpawnActor<AAmmunitionItem>(item->projectile, item->Mesh->GetSocketLocation(FName("Fire_Position")), item->GetActorRotation(), params);

EDIT:

After additional testing, it turns out I can get world location of the socket from other places within the code. I cannot however get it within my firing function, which is where i specifically spawn the projectile. I do not know whether this is a bug, or maybe there is something that is keeping it from giving me the correct coordinates.

EDIT 2:

So set a FVector in the tick function and it would continually update with the correct coordinates. But as soon as I checked that Vectore from the Fire() function it would return at the wrong coordinates.

I will post the whole code so maybe it will give some insight:

void APlayerCharacter::OnLeftMouse() {

	if (Inventory->Equipped[0] != NULL) {

		AItemBase* i = Inventory->Equipped[0]->Base;

		if (i->tag == EItemTag::Usable) {
			if (i->IsA(AUsableItem::StaticClass())) {
				AUsableItem* j = Cast<AUsableItem>(i);
				if (j->uTag == EUsableTag::Ranged) {
					if (j->IsA(ARangedWeapon::StaticClass())) {
						ARangedWeapon* k = Cast<ARangedWeapon>(j);
						Fire(k);
					}
				}
			}

		}
	}
}


void APlayerCharacter::Fire(ARangedWeapon* item) {
	if (item->projectile->IsChildOf(AAmmunitionItem::StaticClass())) {
		FActorSpawnParameters params;
		params.Owner = this;
		params.Instigator = Instigator;
		AAmmunitionItem* projectile =  GetWorld()->SpawnActor<AAmmunitionItem>(item->projectile, ActorToWorld().TransformPosition(item->firePosition), item->GetActorRotation(), params);
	}
}

Any help is appreciated,

2

GetSocketLocation() returns the ComponentLocation when you try to access an invalid socket. Make sure your socket exists and that your name is correct.
Also you can just enter a string when FName is expected.

Instead of Mesh->GetSocketLocation(FName("Fire_Position"))

Try Mesh->GetSocketLocation("Fire_Position")

3

Thank you for the response, but I have already checked that the socket exists. Currently the socket relative to the bone it is on is 0,0,114. When I print item->Mesh->GetSocketLocation(“Fire_Position”).ToString(); it returns 0,0,114.

4

Hey, after reading your edit of your initial post, I came to think that this is indeed some kind of bug. Not sure if I can reproduce this though.

5

This unfortunately does not work.

6

Inventory->Equipped is an array of UInventorySlot* which contain a reference to AItemBase* called Base.

7

Well… This actually had a simple solution but of course I was just looking in the wrong spot. The problem was that when I added an item to the the Equipped array, I added the reference to an AItemBase called base. Because it was never spawned, its location was always at 0, and therefore GetSocketLocation() looked like it was returning local position. What I did was is just spawn the AItemBase, then add it to the array. It now works like a charm.