Customise EAttachmentRule for Rotation while attaching Actors?

Development Programming & Scripting Blueprint
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1

I am overhauling my item pickup logic since I am tired of using the UPhysicsHandle and all the nonsense that comes with it. I want to simplify the whole ordeal by just attaching items to be picked up to a socket called “Item Holder” on the static mesh of my player character.

So the idea is:

  • Line trace on Action Input Grab
  • If bool IsHolding is false and bool of Line trace is true, execute attachment.
  • Actor in level is attached to socket “Item Holder” on player character.
  • Attachment Rules: Location: Snap to Target, Rotation: Keep Relative, Scale: Keep World,
    Weld Simulated Bodies: True.

So here is the problem: Different items have different rotations at which they make sense while they are being held (they are just floating in front of the camera).

I do not know how to change the Rotation: Keep Relative in such a way that I can provide a fixed Rotation when they are picked up.

I have a function that determines the class of the actor and in that function I specify what pick up rotation the actor is supposed to have. But how do I pass this pick up rotation to the Attach Actor to Component node? This worked previously with the UPhysicsHandle approach, where I set the rotation to a fixed value in Event Tick while an item was being held. But how do I do it here, since the Type is EAttachmentRule Enum?

2

Attach with Rotation Rule: SnapToTarget and then AddLocalRotation to the item?

3

by the time it snaps to the target, it overlaps with other geometry and gets flung in a random direction.

4

Attach should be instant. How can it get flung if it’s attached, because I thought that disabled physics?
You could set the actor location to the attachment location, then set the approrpiate rotation, and then use the Attach function with Location and Rotation: Keep World?
Pictures of what you have tried might help.