Repeat Q since 2015: How to change Variables of Child Actor Component, in a BP instance?

[eblade]

You could make your own Actor LootBox that spawns other Actors. It rather sounds like from some of the use cases you mention, that you don’t want Child Actor Component, if you’re destroying the crate but not the child.

@XxNotAGamerxX

But the problem is I want to place Lootcrate BP in the map, set it to hold Pickup01 near a tree. Then place another Lootcrate BP near a rock, and I want it to spawn a different PIckup02 that I manually set from World view.

and that’s not how ChildActorComponent works. You can’t change the Actor that it generates in an instance, you can only change it in the base blueprint. You can’t access it from Constructor because neither the Component nor the Actor it spawns exist at Constructor time. If you want to use ChildActorComponent, then you’ll need to create an Actor Blueprint for your possible options, and create a Blueprint of the Lootbox Actor for each Child Actor type.
The properties for the actor to spawn are not instance editable.

@XxNotAGamerxX

Ok so my Pickup03 is an armor set (6 individual parts, each can be set separately with 6 DT row handle variables). It has complicated code to read a DT and each EACH armor piece in its Construct script.
So for head, chest, legs, boots, etc - in that Pickup actor, I just use a dropbox variable - to select which DT row to read, and the Construct script then sets the Mesh, color, name of the matching Row handle.

so, make a blueprint BP_MyPickup_WhateverTheArmorIsCalled or some such, that has all the correct settings setup by default. Create another blueprint of your BP_LootBox, such as BP_LootBox_ArmorName, and set the BP_MyPickup_WhateverTheArmorIsCalled as your child actor class.

@XxNotAGamerxX

how exactly to CastTo or BPI to the Child actor/component

@XxNotAGamerxX

access their variables from the Details panel in World view

These are two completely independent concepts that have absolutely nothing to do with each other. I don’t know how to answer, because the question doesn’t make sense.

@XxNotAGamerxX

CastTO or BPI affect the [Child Actor] that is spawned (dont know how)? And do I need that code in BeginPlay?

I can’t come up with any reason why a LootBox would need to access deeply inside an actor inside it. I’m not even sure how to get a Child Actor inside the parent, because I’ve never had to do that (I do occasionally use ChildActorComponent, though)

@XxNotAGamerxX

Or if I want to make a HotelRoom BP and inside that is an Physics Chair BP. I would want BPs in BP for 1) the spacing to be exact for all units, 2) I need to place 20 HotelRooms in a map (which need code for Open doors), and 3) I need to edit the Chair BP later, and its collision boxes need to be separate from the HotelRoom volumes.

I don’t know what the best system is for doing that, but I suspect it’s not Child Actor Components. Can you even specify where those spawn in relation to the parent? I’ve never tried.

You seem to be all onboard with making a blueprint for things, so i’m confused why you’re not wanting to make a blueprint for the things you really need to make a blueprint for to use.