blueprint

[gentle urchin]

Outer outer outer

Gets you there

Iirc

[bitter folio]

like this? under health widget?

[gentle urchin]

No, not like that

[bitter folio]

😅

[gentle urchin]

In the widget

Just right click anywhere, and search for get owning pawn

[bitter folio]

in the event graph?

[gentle urchin]

Yepp

Or in a function, doesnt matter

[bitter folio]

Do I do more with this?

[narrow sentinel]

Any one able to help with why I would get a crash of editor with this

so reading up on this it seems somehow the function is being ran not on the game thread however I'm not sure how to force a function to run on a certain thread.

I don't have access to the source so can't do anything there

[maiden wadi]

You don't need that for CreateWidget. It's only required in a local coop scenario when you need special widgets for that player.

[gentle urchin]

Neat, i always plug it 🤣

[maiden wadi]

It basically just changes what you get when you call GetOwningPlayer and such. Which will all be the same with a single player on the machine. 😄

[maiden wadi]

What engine version?

[maiden wadi]

I don't remember that much about 26. Could have been patched out as a known bug. 🤷‍♂️

[narrow sentinel]

well this is the thing, I don't have access to anything internal to go too deep into much, however, is there a way to see what thread an actor is running on ?

so if it's running on game thread or not

[faint pasture]

What does it mean for an actor to run on a thread?

Pretty much everything in blueprints in game thread

[narrow sentinel]

hmm i'm confused then why when I tell a audio component to play I get a crash of editor

so it's bassically the Train Sim World public editor and let's just say it'm not massivly optimised, I don't have soruce to do anything internal to it and can only do stuff in BP, they however have done stuff to I believe have some things not run on game thread but run elsewhere

which means the actor i'm running the play function on must be not running on game thread

that was the error I got

don't know if anyone know what the crash part of that is talking about ?

[keen forge]

Does anoyne here know how you'd go about creating a vertex based lighting system

similar to that of a PS1 game

[faint pasture]

Nobody has time to read a 4 Mb text file

Show the important bit

[narrow sentinel]

is just the call stack bit

right at end

[narrow sentinel]

Thats all i get

[dawn gazelle]

This is an indication that when you're calling the play, you're not actually running on the game thread. In what blueprint and off of what event are you calling the play?

[narrow sentinel]

so I've tried calling play on the RVV and the RVM, Rail Vehicle View and Rail Vehicle Model. From what I can tell it seems these aren't running on game thread

but I'm not 100%

[narrow sentinel]

the event is a custom event

[dawn gazelle]

What types of blueprints are these?

[narrow sentinel]

so it's a derived class that Duvtail have made

they have one for their Rail Vehicle view and one for their rail vehicle model

don't know if that gelps

helps

if I was to create my own Actor Component would that defo be on game thread??

just thinking that maybe there is something within their BPs that force them to run on specific threads?

my thinking is if me creating my own Actor component to call the play function on for the audio component and my component lives on Game Thread that could end up being my only option

[narrow sentinel]

is there no way at all where I can check to see if something will run on game thread or not cause even when calling the play on the audio component from within a Actor component of my making thats within the RVV I still get the assertion error

[dawn gazelle]

Ok, at least it's an actor. So now it's just a matter of determining the correct event to use. You're saying you're using a custom event, but that custom event would be getting called from somewhere.

[narrow sentinel]

annoying thing is I did get this working at least once the other day

[narrow sentinel]

Let me get you a kind of trace of the flow

[dawn gazelle]

It won't matter. I can't troubleshoot a system I'm not familiar with. You'll have to find the correct event to call your play on. Right now, the one you're calling doesn't call on the game thread.

[narrow sentinel]

RVM i have bP actor component

the RVV received a call from an interface to play the annnouncement

There is then a call to the BP actor component that lives on each RVV which does the functionality to call the play on the audio component

the audio component lives in the RVV

[narrow sentinel]

well the custom event is my own making

so it's more so I need to find the location to add the custom event so when it's called its on game thread

out of interest

if say I move the play function into a blueprint actor but the actor component still resides on the actor that the play was being called on originally would I get the same outcome ?

reason I ask is cause my thinking is as the Actor component is UEs base logic and not Duvtails it would be spawned like normal and thus on game thread ?

[narrow sentinel]

so I've changed what I'm doing and this time I'm not running any functions at all on the RVV as I feel the RVV must not be running on game thread and hopefully it works

if this doesn't work then my next solution if that don't work my idea is a lost cause haha

So with everything on the rvm I still get assertion fail so this tells me both rvv and rvm must not be running on the game thread even though I'm sure it was working while ago

Is there no way at all to see where functions are being called on at all

What if I played sound at location would that spawn it in the world on the game thread or ?

[zinc talon]

so i have enmy ai and i want to add attack animation and i didt like thes https://youtu.be/V1CI6stHcHo but is did'n work and i try to add input key and play montage to see if was the bleuprint of the ai the proplem but it's didb't work to so can somone help (i added a default slot)

[frosty heron]

Where exactly did you add the input key to test? Print string after the input key to see if it's running at all

[delicate yacht]

Hello, if I am making a weapon and I want it to apply damage on collision, should I have that function built inside the weapon blueprint?

[frosty heron]

If it's a trace, why not. But if projectile, handle it on the projectile upon impact

[copper chasm]

I can't get "Get All Actors of Class With Tag" to work in JUST blueprint, right?

I need to do something in CPP?

[maiden wadi]

Wut?

[copper chasm]

Right now I'm getting all actors of class, checking their individual gameplay container variables against "has tag" and doing it that way

[copper chasm]

there's some jank in Gameplay Tags that requires some tinkering in CPP to use completely, I think

[maiden wadi]

Ah. GameplayTags. Where are you storing them?

[jovial sinew]

What's the equivalent to Begin Play in the Editor Utilities? I'm trying to bind to an event that's called when the slider changes (On Value Changed) on a custom editor widget. In blueprint, the event is bound on Begin Play - what would that be in for the Editor Utility?

[maiden wadi]

Depends on the EditorUtility. But it sounds like you're in an EditorUtilityWidget? It should have an EventConstruct.

[copper chasm]

Right now the character has a tagcontainer variable, and I add/remove to that as needed

[jovial sinew]

Hey thanks, yes I'm using an EditorUtilityWidget and there is a construct event, but I'm building the logic on the actor so it needs to bind to it

[maiden wadi]

You could do it in BP. GetAllActorsOfClass, Iterator over them and dump those with the correct tag(s) into a second container, return. But it'll be much slower than a C++ implementation.

[copper chasm]

Yeah, that's what I've been doing, just checking tags with hastag and a bool to put them into a container

it's just a prototype rn, if it gets off the ground i already have it in the todo

just trying to get this running right without opening ryder lol

[maiden wadi]

You really shouldn't do this. Ever. For any reason. Even taking EditorUtility stuff out of the equation here.

UI golden rule: UI exists to display the state of gameplay objects and to give input to gameplay objects.

In short, your gameplay classes should never care about a widget. Making an actor care about a widget and it's slider forces that UI to exists for that actor in game, you link the classes together. Which you cannot actually even do with an EditorUtility class.

Instead, your widget should be given the actor ref. Bind an event in itself for it's own slider. When that changes, call a function on the Actor ref.

[frosty heron]

The UI lord has spoken 🗒️

Authaer can I get away with widget blueprints for like 800 items? Or they should be done with slates

[maiden wadi]

Depends, what's the usecase? Nameplates, or inventory?

[frosty heron]

Prefer to learn less things to progress but don't want to hit limitation

Inventories and damage text

[jovial sinew]

Okay, thank you for clarifying. I've been trying to practice de-coupling but seems I'm doing it wrong. I thought sending an event dispatcher didn't mean the actor had to have a reference and just listened. But I guess binding does need/make a reference? How do I get the actor to just listen for an event without the UI being aware?

[jovial sinew]

Nevermind, I'm re-reading your last line. I'm approaching the problem completely wrong anyways. Thanks again for the info.

[maiden wadi]

It's exceptionally rare that you'll ever actually need to use slate for gameplay UI.

Inventory should be done in a Listview or Tileview. Main reason is that if you display 32 items, but that inventory has 500, a Listview or Tileview still only actually create 32 widgets. It's virtualized to show only what is required to show.

Damage text, I would do two widgets. Make yourself a primary widget that has a canvas in it. Make a second widget that is the damage text display. Make a way to be able to bind something somewhere when your player deals damage. The canvas widget can bind to that and if the event is relevant then create a damage widget and put it on the canvas at the right spot.

Pool your widgets you're using for display of course so you only ever end up with as many as you need and don't create a bunch of garbage.

[maiden wadi]

@frosty heron Also follow-up on the slate thing. Just to clarify, the exceptionally rare is the very rare cases where you actually need to create your own UWidgets and SWidgets. You can do most things without it though and there's really no reason to use slate for performance. I fell into that trap once. It is true that if you write strictly in slate, you get a bit extra performance from paint calls and such.

That said. You shouldn't care about that small performance so much, because you can get your performance back without writing slate, by simply using invalidation boxes correctly, and using less widgets.

Inventory is always my favorite on that one. You have so much going on in a tiny little widget. Background brush, border brush, probably a little glow effect brush, stack count text, status effect indicators, etc etc. I mean just these alone would be 4-7 Images, textblock, overlay. That's up to 9 widgets there, which you can entirely condense down to 3-4 immediately. Overlay, textblock and one image can manage all of that. Because the one image can be a material with all of the other brushes combined via some basic shader stuff.

On top of this, Invalidation boxes are the second best way to get good performance out of UI. The first being simply not having wasteful widgets. Invalidation boxes simply cache their children and do not allow them to tick or paint until something else invalidates them or that invalidation box. So you save a lot every frame by not running paint and tick code in the widget until it has been invalidated which only has to happen when something actually changes. Note that this means no effects going on in those widgets though. If you have a brush doing some neat material effects, you can't invalidate that or the effect won't play.

[teal tendon]

hey guys I am making the detailed day and night cycle using the sun position calculator so can anyone tell me how do I calculate the accurate position of the moon using the get sun position node from the plugin, I mean the math behind it, would be a great help , thanks in advance

[copper chasm]

Building a context menu widget that populates based on options set on the object you're right clicking: Actor Components that feed into the widget on construct?

Make a base Actor Component, like AC_InteractionContext with something like "Examine" and then make children that would add things like "Talk" (on people), "Open" (on doors), etc - widget is created taking the base class as an input and the children can override where needed?

Essentially I'd like for everything to have a default interaction when left clicked, and then right click opens that context menu that provides more specific functionality if needed

[frosty heron]

Thank you for the insight, sorry for the late reply had to run to work.

[olive yarrow]

What dumb easy thing am I missing to make this lerp move smoothly instead of teleport? 🤦‍♂️

[fiery swallow]

You're not actually moving the alpha from 0 - 1

A timeline can help you achieve that

It still won't be smooth though unless you save the starting point and end point is static, if either change it could effect the lerp in unexpected ways

[olive yarrow]

Uuuugggghhhhh the thing I was trying to avoid for genuinely no good reason. Laziness I guess.

Thank you though, Seeker! Save my starting point?

[fiery swallow]

Timelines used this way work b best bwith lerps and two static locations, so yes. Save the starting point usually. The end is usually similar or static

The alternative is more annoying but doesn't require static locations

Set actor location every frame using Vinterpto, and then do a check that you are nearly equal to the target location in order to break the loop

I usually just have a delay until next tick on the loop and then run the code again and again until the if statement is true

Though that method is controversial because you're essentially faking what tick does

But it's what I do.

[reef totem]

any idea why this is not keeping collision?

[spark steppe]

may be moving too fast

try enabling CCD on both

[reef totem]

same results sadly

[olive yarrow]

works for you, works for me. Thanks Seeker!

hmmm... the Z

new rotation is going for 0, add force or summat

[olive yarrow]

forgot to tag

[reef totem]

tag?

[reef totem]

what do you mean?

[olive yarrow]

forgot to tag you*

there's a "launch character" i think... i dont have unreal open. Either way, i THINK you're lockings its z axis with the new Z being set to 0

[reef totem]

the harness is being set to 0

not the box

[olive yarrow]

I have glasses but that doesnt mean i read good

[reef totem]

im trying to launch the box haha

my idea is to use the built in physics to launch the box rather than hardcode the launch

[olive yarrow]

it's interesting how the box seems to follow a bone when you start the launch anim....

or thats my assumption, it seems to keep quite inline with the chest while throwing

[reef totem]

yeah its weird. It behaves as if the bucket is compleatly stationary. So it even bounces some when the rover rotates

[olive yarrow]

any parents on the box yer launching?

head up, my skill level is very low but im down to bounce ideas

[spark steppe]

depending on what you want to achieve... maybe use a physics constraint (component)?

[reef totem]

i've tried physics constraint+bonesocket. I've also tried just contraints. The constraint cant be moved for some reason and the bonesocket+ constraint seems to be extremely unstable even once I got everything right. Super jittery

so Im back to square one. using a simple timeline to set the location and rotation of the bucket

[reef totem]

parent would be a ball. Same stuff tho

[reef totem]

any suggestions are welcome at this point. Im out of ideas. Been at this for awhile lol

[reef totem]

okay I got it working with constraint. Now the issue is I cant move the constraints root location around to use it for the animation

any suggestions?

[spark steppe]

did you constrain the box to the "basket"?

then the "root" should move with it (without doing anything manually)

[reef totem]

when you say the box do you mean the rover or the box im trying to launch?

[spark steppe]

box = the small cube

[reef totem]

so its launching, but im trying to move the root up. so it doesnt bonk my character on the head

[reef totem]

it doesnt seem to move up when I use this

[spark steppe]

to be honest, keep it that way 😄

[reef totem]

lol I know, but this is a proof of concept

[spark steppe]

what is harness

the robot itself?

[reef totem]

the yellow thing around the box

[spark steppe]

and bucket? Oo

[reef totem]

bucket is the basket thing

[spark steppe]

yea sorry i cant help futher, i'm not familiar enough with all the settings in physics constraint component and i don't have UE in front of me right now

[reef totem]

gotcha no worries. This was about as far as I got with constraints, but until I can move them dynamically they wont be very useful

[spark steppe]

i would keep playing with them, i think the dynamics they add to the robot look kinda cool (even if it's maybe a bit too much right now)

[bitter folio]

using the laucnch character node with velocity plugged in, is there a way to make it so it laucnhes the player on the direction they look even if they are not moving

[olive yarrow]

@fiery swallow !!!! 😄 thanks again

[little orchid]

I'm in a bit of a pickle with level bounds, I'm using a default open world level to test ship mechanics, that I'm building. One thing that I run into is that the level itself is set for level streaming and all that stuff, but once my ship takes off and I reach a certain point it's like the ship just gets destroyed even though I'm going up, the kill Z is quite a very large number and I have level bounds unchecked... , and in this default level I'm also using Ultra dynamic sky for its space preset, anyway I'm not sure how to stop it from destroying the ship, and no I do not have any other types of restrictions around the level or any type of collisions or whatnot.

[gentle urchin]

Yes just use their view direction

[bitter folio]

what about detecting if they are not moving?

[gentle urchin]

If velocity > 0 ..

[sudden nimbus]

your ship has Spatially Loaded checked, uncheck that

[little orchid]

THANKS!!! THAT WORKED!!

[tropic peak]

each time I restart the editor this breaks:

and I have to implement the interface function again

what's causing it?

[steady night]

hey ive made a custom macro but i cant fetch it :/ ?? ive set the "parent class or main class to the class of the player but i cant find it in the list :/? do i have to add a macro library or something ?

[fossil wharf]

How can I isolate only left full arm using anim slot

[gentle urchin]

sounds like something #animation can help you with

[sudden nimbus]

I had this happen to me recently, I tried removing the interface from the blueprint and adding it back and I think it worked iirc-- not sure what causes that

[tropic peak]

thanks I'll try that, it caused me quite a lot of pain yesterday

[sudden nimbus]

let me know if that does the trick so i can commit that to memory

[tropic peak]

sadly nope

that didn't work

I have to reimplement the function in the graph

[sudden nimbus]

is it a c++ interface?

[tropic peak]

no

[sudden nimbus]

huh.

[tropic peak]

there's nothing unusual about it really

[sudden nimbus]

oh right I think I literally just removed the interface in my case as it wasn't actually in use 😕

its definitely a strange thing-- the interface was sitting there for a long time and then suddenly it kept ejecting interface events when it was loaded in editor

[tropic peak]

yeah I didn't even touch it when it broke.. I was banging my head against the wall for 3 hours yesterday why my character doesn't move 🤦

it just broke on its own

[frosty heron]

Layered blend per bone node

[fossil wharf]

@frosty heron

You mean like this?

During jump it acts like this xD

[frosty heron]

Well what do you expect to happend anyway?

[lunar sleet]

Looks like a jump to me 😁

[fossil wharf]

I have animation montage. It should use isolated left arm.

Then it should combine the rest of animation with the isolated left arm animation.

[frosty heron]

Sure if you set it up correctly

[fossil wharf]

I did.

Everything works fine.

Except the fact that during the jump (different animation), the left arm looks dead

[lunar sleet]

Smells like bad weight painting to me

[fossil wharf]

?

[lunar sleet]

But unless you messed with the manny in skeleton editor prly not

[fossil wharf]

I did not import my own character or anything. It's basically third person template.

If the character is running, the arm works fine

Only during jumps xd

[fossil wharf]

This fixes the issue cheers

https://streamable.com/v01urq

[slender idol]

Hey, what is the correct way of setting up chorded inputs within an imc? For stuff like Holding Ctrl + G, should ctrl hold be part of a separate imc than what the G is?

[dark drum]

Just so you know, you'll only ever be able to play montages on the left arm with how this is currently setup. Setups get more complex when you start adding per limb montage slots. 😅

[dark drum]

From my understanding, it only cares about the Input Action itself so it shouldn't matter what IMC it's in, only that there's an active ICM with it on.

[fossil wharf]

how come

[dark drum]

Because you only have a left arm slot setup in the anim BP.

[fossil wharf]

well i can set up right arm slot too

x D

[dark drum]

Then you'll want an upper body, a full body (sometimes just the default slot) then a left leg and a right leg. 😛

[wooden stratus]

ah thats a classic one, that issue also exist in UE4

There are multiple causes for blueprints not saving correctly even if you save them

1. Is that a c++ project?

2. Do you have live coding enabled?

[fossil wharf]

its by default

[tropic peak]

1. there's a tiny bit of c++, 2. probably no

[dark drum]

Unless you add the slot to the anim graph, they won't do anything. You have to setup how you would have them blend and what not.

[wooden stratus]

Ok, that means you have atleast edited c++ files.
I'll assume that you didnt handle the files properly.
Basically, whenever you edit a header file, you need to close the editor and rebuilt from source. There was a good reason for that but forgot it right now.
Anyway, whenever you edit a header file, close the unreal editor and rebuilt from source.
If you dont, you'll get blueprint saving issues.

[tropic peak]

oh man I hate this. I'll do it when i'm done with the feature i'm coding now

[wooden stratus]

To fix this, you'll need to close the editor, delete your saved, intermediate and binaries directory in your project directory and rebuilt from source

You can use live coding or hot reload if you dont use live coding whenever you edit a cpp file but if you edit a header file always close the editor and rebuilt

[steady night]

hey Math Question im trying to do 5x line traces between the "Start Loc" and "End Loc" how would i didive the locations in the loop ?

[dark drum]

I would get the direction vector and distance from start to end. Then you divide the distance by intervals.

On your loop, use the index to multiply the interval distance and the direction vector and add it to the start location.

[graceful kite]

I can't believe i have been banging my head against the wall so much becasue of this. Most of the things I've seen look to have the local enhanced subsytem in the pawn when aiming to control a camera. thank you

[steady night]

thanks ill look into that

[empty marten]

Hey peeps,
When is it best to switch between using a cast to node and using BP interface instead? Is it literally a case of, the odd cast now and then is fine but if its a consistent thing then BP interface would be better or is there more to it?

[young meteor]

Hey folks

How do I get from having a Blueprint Name to getting the actual Blueprints class defaults? (or just a specific default variable if it makes a difference)

I guess "Load Class Asset Blocking" and then cast to the Class?
That means I have to load everything related to that class at once. Is there a way to just retrieve a specific variable?

[young meteor]

My understanding is casting is completely fine and overstated from people saying it's "bad" or not "performant". The performance cost is basically nothing if you are not spamming casts many times every frame or something.
The consideration is more that you want to avoid writing casts in your code to many different Blueprints you might not need to load when playing.

So avoid creating a chain of casts to Blueprints you don't need loaded for sure, to minimize what you load into memory.

[empty marten]

Thank you for responding. I'm definitely not doing something every frame. At the moment I'm just working on UI stuff and have a few widgets that require some communication between them when in use. I'm also just trying to understand BP Interfaces a bit more.

[thin panther]

Interfaces are for implementing class agnostic behaviour, to have common behaviour on unrelated objects.

Say for example you have an interaction system. You might interact with containers, weapons, food, crops, NPC's etc. Or a faction system. You might have ownership of objects and NPC's which don't share a base class, but still have this small bit of common functionality.

Casts are when you have a direct inheritance chain. I.e., if you're only dealing with doors, you can feasibly cast to its bass class. Casting can incur a cost because of its hard reference which causes the target's default object to be loaded into memory. This also includes all dependencies in that class (assets, other hard refs to other blueprints, etc) . This can be bad, because assets are huge compared to the class, and memory can balloon. As you might have guessed, a base class that only includes common functionality and no assets is the way to avoid this.

It's worth noting, not just casting incurs that cost. Any time you use a blue hard ref to a class with assets in, the cost is applied, so make use of code only base classes and soft refs where possible

[tropic peak]

unfortunately that didn't solve the problem 😦

[violet spoke]

What are the hotkeys to collapse reroute nodes or something ?

I know only Q and shift+WSAD

[teal tendon]

hey guys I am making the detailed day and night cycle using the sun position calculator so can anyone tell me how do I calculate the accurate position of the moon using the get sun position node from the plugin, I mean the math behind it, would be a great help , thanks in advance

[violet spoke]

xd

[wooden stratus]

Try to right click on the file in the editor browser and relink it

[steady night]

hey another one 😉

i wanna trace in the same direction as the "niagara effect" im spawning

so they both start in same spot but the spawned direciton is what im having issues with

or nevermind solved it

i was multiplying instead of adding *

[tropic peak]

I'll need to try that later, can't really restart now 😄

If I want to hold a list of ingredients for a workbench (imagine dough maker - you have two ingredients water/flour). How can I store the list of required ingredients? Should I use a struct? How can I define the struct for each workbench (they all have a different purpose/ingredients)

My point is, when I define a struct like this:

that's how it looks in the editor. I'm obviously missing something important here, and perhaps it should be a DT

with X amount of columns for ingredients

[frosty heron]

It can hold reference to a class

Instead object ref (instances)

You won't be able to fill it since you don't have any instances exist in editor time

At the basic level you can have a struct of item class and an int for quantity

[steady night]

adding a actor an Unique* in an actor variable will that could for that "Class Type or that instance of actor" ?

[frosty heron]

unique*?

[frosty heron]

that's object ref

class would be purple

[steady night]

hmm yeah so whats the diff with add/addunique =?

[frosty heron]

If a reference already exist inside the array, it will not be added if you use add unique

[steady night]

ah ofc

makes sense

it just feels like when im using multishpere trace that it ignores actors if it already hit an actor kinda

[frosty heron]

it should return all the actor reference that the sphere collide with

[steady night]

well its not really :/

[frosty heron]

maybe it's set to block?

should be overlap

[steady night]

hm it is...

and blocking makes stuff behind it not react ?

[frosty heron]

I would assumed the block would stop the trace

[steady night]

yeah overlapping did it.

yeah seems so

[frosty heron]

i mean I kinda know it just don't want to give definitive answer

[steady night]

yeah

[maiden wadi]

@frosty heron@steady night This is correct. Multi traces of any kind will collect items into the array that it overlaps and will stop tracing when it hits a blocking actor.

Think flamethrower against wall. You don't want to flame the other side of the wall but youstill want to flame everything in the area before the wall.

[dark drum]

I'm currently looking at setting up volume settings menu and I can set the sound mix volumes and what no no problem but does anyone know how I can get what the current mix volume for the specific sound class?

This is how I'm currently setting the sound class mix volume.

[final berry]

Hello! So I'm trying to reduce the sizemaps of my actors, but not quite sure how to approach this.
My sizemaps are huge currently and a bit lost on how to go about it, can someone point me in the right direction? Pretty lost atm

[gentle urchin]

Hard references

To assets or other actors with assets

You want to avoid hard refs when you can, softpoint to assets and async load on demans

Sizemap will tell you which assets are referenced

You'll have to figure out how/where/why , and see if you can reduce that

Inheritance, baseclasses without asset refs, is usually involved to achieve this

[final berry]

Yea I see that the major problem is that the epic store pack I bought has massive textures, which are all referenced by a lot of actors because they are inside actors that use a couple variables from certain other actors/game instance

[frosty heron]

Soft ref is out of the scope for marketplace assets

It's something you implement by design

You decide what you want to load and when

[leaden sage]

You can set the max texture resolution in the texture as most marketplace assets have much higher resolution then what is needed

[final berry]

Yea that will probably help, but I think the issue lies deeper currently 😅

[gentle urchin]

8k healthbar texture

[leaden sage]

I've seen plant pot leaf use a 4k texture aha
(well 3, 4k textures actually)

[gentle urchin]

For what only has 120x40 pixels avaliable

[final berry]

One asset had a 4k texture with a 100mb size. I compressed it to 8mb, effectively getting the same quality in-game as before 😅

[frosty heron]

Compression is prob another topic tho? Like if you have hundreds of items, you shouldn't be loading all of the icons and meshes when you are not going to see them all.

You can just load the one that players are seeing

If you are working with data table, be very aware of hard ref

[final berry]

Yea I think that's the major offender on my part

I have data tables that hard ref classes (for spawning in towers and enemies for example)

[gentle urchin]

Rip

Instantly

[frosty heron]

Right and those enemies will contain materials and meshes

[final berry]

I;m watching videos about soft references and other tricks now

😛

Yea and the towers do to

Still learning 😅

[frosty heron]

Like the class it self shouldn't matter ( maybe ) it's material, audio and textures are normally what clutter the size

[final berry]

I think I'm gonna need a major refactor, but better do it now 😛

[gentle urchin]

If you softref the class, the class cam hard ref internally 🙂

[dark drum]

Soft class refs do create a hard ref to it's class type which is something to be aware of. I find for best results, you would have a soft class ref for a light weight parent class and then set it in the relevant child.

[gentle urchin]

That sounds weird?

Why would it create a hard ref to the class? Completely misses the point then

I wanna test this now but wont be at the pc for a while

[dry sleet]

Because in order to resolve a soft reference, it must know to which class it will be resolved.

[gentle urchin]

If you do a resolve, sure but then yoi're back to the hard ref

You only need to know that its an actor class ..

Just like you only need to know a texture is a texture, not which one

[dry sleet]

If you can get away with resolving to AActor, then sure, only the AActor base will be loaded (and it already is).

But it you actually want to use the data in your class, and the soft ref is of that type, then you'll pay the linker cost for it.

Hence why the advice is to use lightweight code-only base classes for soft-ref'd actors.

You can cast to that cheap class and ignore any heavy data added to subclasses.

[dry sleet]

At some point you naturally need to resolve? What's the use of a soft ref if you never load or resolve it?

[gentle urchin]

I have yet had the need to resolve to the actual class

[dry sleet]

Do you mean that you usually hold refs to stuff like AActor, UTexture2d, sprites, etc.?

Because those refs all demand that those classes are loaded -- but since they're engine internals they already are.

[gentle urchin]

The softref may be of type MyClass, but i never resolve it as such

[dry sleet]

Pretty sure that still demands linking, if it is specified as MyClass in the variables list.

But if you've set it as a soft ref to AActor, then yeah

[gentle urchin]

The variable is just an asset path,

[dry sleet]

With a type

[gentle urchin]

The 'type' is just a filter

[dry sleet]

Hmm, I'm not so sure about that.

[gentle urchin]

I say it with confidence, but its ofcourse all things i've heard, and not chevked

[dry sleet]

And verified with the size map

[gentle urchin]

That makes it completely useless

[dry sleet]

Not at all

[gentle urchin]

What differs it from a regular hard ref then

[dry sleet]

Just do what everyone says: keep the base class you wish to resolve to data-only.

Because the data can be unloaded.

[gentle urchin]

That doesnt answer much at all

[dry sleet]

I'm still writing, though...

[gentle urchin]

So i say again. Its useless

Ok sry

[dry sleet]

If you'd be patient enough

If you have some data asset, say a dialogue tree, and it's 10 Mb because you've written the entire Encylopedia Galactica in it, then if you soft ref it you don't need to load the actual asset content automatically. You only need to load the concept (CDO) of a dialogue tree, which is probably 1 Kb in size, because it's a bit of C++.

[final berry]

I'll keep that in mind, cheers!

[dry sleet]

The same goes for meshes and textures -- if you hard ref them, then the content of the asset will be loaded alongside the BP referencing it. However, if you soft ref them, all the engine needs is UTexture2D -- a tiny bit of C++.

Then you can say, at a convenient time (like when you're opening the inventory) -- "now please load the actual model".

[gentle urchin]

Thats what im currently doing

[dry sleet]

Then you're doing it right!

[gentle urchin]

Yet soft class still seems pretty useless to me

[dry sleet]

It's anything but.

[gentle urchin]

Yet your size map says differently

[dry sleet]

It doesn't, though.

Let me demonstrate what I actually would have done.

[gentle urchin]

Loading the same cdo as a hard ref, with no actual hard asset refs inside, achieves the same 10kb load

[dry sleet]

Data only base class

25 kB

If I needed to, I could extend ACharacter with an additional subclass before my big chunky BP_Character with all its models and what-not.

Often ACharacter is all you need, though.

[dry sleet]

Sure, but now you have no control over loading.

[gentle urchin]

I got a feeling this is but a bug tbh

See some forum posts suggesting the same. Ill have to do a deeper dive

[dry sleet]

How could it be a bug when the docstring for soft refs mention it as a caveat?

[gentle urchin]

Wouldnt be the first time they've made mistakes there

[rare pasture]

I wanted to know, to create professions like Woodcutting, Mining, and others, in what type of blueprint should I do it?

[bold shard]

Can you convert a string to a tag without C++?

[gentle urchin]

Tried with memreport in standalone?

[dry sleet]

No, I personally have no doubts that it is intended functionality, which is supported by most reports -- but knock yourself out.

[gentle urchin]

From epic staff;
TSoftClassPtr: Used for referencing class or blueprint types that might or might not be loaded i may read it with some confirmation bias but..

[dry sleet]

SoftClassPtr isn't really the same, though.

And it doesn't disprove anything that was just said about standard TSoftObjectPtr.

[chrome dust]

I'm looking for help resolving this glitch. I've had ongoing issues with the attach track in sequencer working inconsistently when detaching for at least a year, and I've finally pinpointed the cause, but I don't know how to fix it.

I have two different actor blueprints. For sake of example, we'll say Cube-BP and Sphere-BP. Both are in sequencer as spawnable objects. If I use an attach track on Sphere-BP targeting Cube-BP in the sequencer, it will work as expected, unless Sphere-BP has 'Run construction script in sequencer' enabled in it's class settings. If it does, Sphere will remain a child of Cube in the outliner, regardless of whether the playhead is over the attach track or not.

According to the documentation, "Instead of scripting the attachment of objects, Sequencer provides Attach Tracks, which will automate the attaching and detaching, using the same mechanism (USceneComponent::AttachToComponent)." My assumption is that for whatever reason, the run construction script in sequencer flag is causing this USceneComponent::AttachToComponent script is not being voided when the playhead is outside the attach track, but I'm not sure why, or what to do about that...

Any thoughts?

[vagrant quest]

does anyone know why the ProjectWorldLocationToScreen function returns screen locations that are massively distorted by distance? im trying to make waypoint system by using location of waypoint actors and at distances of only a few hundred meters the screen locations it gives are massively warped, always being above where the actor actually is

i tried different ways of getting actor world location and it does not change the problem

[dark drum]

This is why hierarchy is important. Lets take projectiles for example. You might have a gun that can shoot different projectiles depending on what ammo the player has collected. When the weapon goes to spawn a projectile, it'll use a soft class reference of a projectile class. All projectiles would be children of this class. You can then update the soft ref as and when needed to the children classes without it force loading them. It will however force load the base class itself. However, if this is just a data class with core functions the size would be tiny as the heavy assets would only be in the children.

[gentle urchin]

if the size is tiny, it will be tiny as a hard ref aswell

so then what's the point ?

my randomclass with an actor ref vs actor soft ref is exactly the same size

[dark drum]

The base class yes but not the child you could potentially select.

[gentle urchin]

gotcha

so with the hard ref it will load the actual class

while with the soft ref it loads the base but nothing more

[gentle urchin]

While it now makes more sense, I still find it very strange that this is how it works

here i was , thinking the soft ref was purely a path

[reef totem]

I am attempting to move a bucket on my robot, but I cant seem to get the constraint to move while physics are in place

[gentle urchin]

makes no sense for me that it should even load the cdo

[reef totem]

here it is in action

[fossil wharf]

Hey, I have added mesh to a level map. How can I get a reference of it in my character bp so I can start rotating it on input action? (replicated too)

[maiden wadi]

SoftPtr is a path and a WeakPtr to the specified type. WeakPtr causes the hard ref to force the CDO to load. But it can hold instances of children of that CDO's class of course.

[dark drum]

This is the difference between using a soft class and a hard class ref. The default class that is selected is the same.

[gentle urchin]

yepp, I noticed that

tried it right after you said it 😛

[tropic peak]

relink?

[dark drum]

Marking a class as abstract can be useful as well. It prevents it from being constructed/spawned. It's usefull for those base classes that wouldn't actually function if spawned because all the default values are never set or functions haven't been implemented.

[gentle urchin]

yeah im using abstract for my dialogue system actually

While there's a million things i dislike about my works IDE and dev solution,

I like the fact that marking functions abstract includes comments made in the parent abstract method

very useful if it's not easy to put in a single name how it's meant to be used

[maiden wadi]

That's Super::Abstract.

[dark drum]

Does anyone have an example of when you would mark a class as const?

[maiden wadi]

In BP?

[dark drum]

yea.

[maiden wadi]

Odd. Never used a const class. O.o

[dark drum]

Yea i keep seeing it and often wonder what you would actually use it for.

[desert lance]

Hey all, new here, so if I shouldn't be posting this here, let me know. But, I am having a hell of a time trying to get a cast to PPAnim instance to function correctly after I switch meshes and cast to the new mesh. Anyone have experience with PPAnim instances, who is willing to have their brain picked a little?

[spark steppe]

i'm not sure if it's a good idea to move both

since moving the harness should already change the transform of the constrainst

[gusty shuttle]

Question, what's the best way to handle walking into a volume looking in a specific direction to trigger it? I know something with Forward Vector. Any keywords I could use for my search?

[desert lance]

If you know the direction you need to be facing you can always just do a "get controller (or pawn) rotation" and between float (A,B) to check if they are facing that direction with a threshold

[dry sleet]

Dot product!

It's the definite answer to checking if you're facing a certain direction in a game :)

[gusty shuttle]

Thanks guys, I'll try it out!

[dry sleet]

You get the camera's forward vector, and the forward vector of the volume, then get the dot product between those two vectors.

If it's positive, you're facing one way, if it's negative, you're facing the other.

[gusty shuttle]

I was noodling with the FindLookAtRot haha

[dry sleet]

Dot product is nice because it gives you a sane scalar to work with!

Just +-0

1s, there's a nice website for noodling with this too

https://www.falstad.com/dotproduct/

[gusty shuttle]

Humm, lemme tinker, I'll give it a shot

[dry sleet]

I think you should just be able to replace your LookAt node with DotProduct (followed by > 0.f) and pretty much be set.

[gusty shuttle]

@dry sleet Perfect!

Thank you so much for answering guys!

[desert lance]

Just adding an image to show what I am referring to here so maybe it makes more sense than words. Each time the cast occurs for a new mesh it increases to C_n+1. And for whatever reason it only works on 0 😦 Not meaning to be pushy, just wanted to add the pic, just in case. And yes, I know the code looks messy right now (troubleshooting)

[summer nexus]

How do I change this settings in blueprint?

AxisConfig=(AxisKeyName="MouseX",AxisProperties=(DeadZone=0.000000,Sensitivity=0.07,Exponent=1.000000,bInvert=False))
AxisConfig=(AxisKeyName="MouseY",AxisProperties=(DeadZone=0.000000,Sensitivity=0.07,Exponent=1.000000,bInvert=False))```

[desert lance]

Are you not using the Input Actions and Input Mapping Context?

[summer nexus]

I use the Enhanced input

[gentle urchin]

Keep in mind 0 is 90 degrees

[steady night]

question: if i wanna move an "actor" as i would with an character (npc) whats the best way of doing so since it has no movement component +

[maiden wadi]

Then you set those on the InputMappingContext.

[summer nexus]

I should not use Game User Settings to save and load settings for input then?

[desert lance]

You can set dead zone and other modifiers in the Action like this

[maiden wadi]

Not usually, no. If you allow keybind remaps, it should go in a USaveGame. GameUserSettings is for local stuff to that machine. Graphic settings, Sound settings and such. Anything that could be considered portable to a user goes in a USaveGame because they're transferred around with the player to different machines. Settings like color blindness, controls, UI and gameplay preferences, etc.

[gusty shuttle]

Indeed, any tips to get it to like 45 degrees?

[summer nexus]

Ah in project settings I need this too https://www.youtube.com/watch?v=sV1X4zXan6M

[gentle urchin]

This for debugging it if you wanna test some values

[brazen pulsar]

TLDR; I need to activate set view target with blend from a behavior tree.

Long version; I've got a dialogue tree working off of a behacior tree (there's an online tutorial I can link), but I'd like to change the camera and angles based on what's being said. I've got the camera set upside down so I can tell when it works, but so far, it just moves the camera down.

[copper chasm]

I have an actor component that does some basic math functions for RPG attributes on a base character class. For individual characters that are children of that class, should I give them the attribute variables directly and have the AC just run the functions to calculate/set them, or make child actor components for each of them

[brazen pulsar]

Might have something to do with the blackboard variable being saved as an object, but read as an actor

Actually, general question, why can I get blackboard value as actor but not set blackboard value as actor?

[night osprey]

(Programming related), base on my understanding of OOP, this should be allow but isn't in UE5. Let say I have parent class P, P has three children A,B, and C. When I create a P object-type variable inside of a class, I should be able to store A, B, and C in object type P, but default value option is grey out for some reason. Anyone know why that is?

So I have classes that derive from "ZombieBasic", but When I create an ZombieBasic type variable, I can't store children class as it default value, any help would be great

[frosty heron]

@night osprey Show the variable type

[night osprey]

it's a custom class call ZombieBasic

[frosty heron]

Can you go over your variable panel

I have a feeling it's object ref not class type

[dawn gazelle]

Likely because you're using an object reference rather than an object class reference. Actor references can only exist when the game is running, so no default value can be stored in them.

[night osprey]

yeah, it's object reference, but class reference does what I wanted to do

[frosty heron]

Yes they ain't the same thing

One is a reference to a class (purple) the other a pointer to an instance of a class (blue )

[lunar sleet]

Except for objects placed in level at editor time, iirc

[night osprey]

in c++, wouldn't parent pointers works on children classes too?

[frosty heron]

They will be reachable by the blueprint instance you drop in a level but the abstract class it self exist without a world so it got no instance to refer to

[lunar sleet]

Yeah I meant for the object pointer not the class 😅

[night osprey]

also, I forgot to mention it's in gamemode class, so I can't just make it instance ediable, but yeah thank for help, looks like class reference is the way to go

[frosty heron]

What do you actually want to do?

[night osprey]

store children classes inside a variable, variable being the parent class

[maiden wadi]

I think the question meant more "what are you trying to do with this implementation that led you to thinking that you needed this?"

[night osprey]

for example, I have a parent class ZombieBasic, civiliansZombie, solider Zombie will be children classes. I want to store those children classes in ZombieBasic type varible when I spawn them inside the level

[dawn gazelle]

Ok, so then you do need a object reference set to the type "ZombieBasic". This will allow you to store any ZombieBasic and its child class objects in the variable.

[maiden wadi]

The why still remains though Why does a parent class need to care about what inherits from it? This sounds like a data nightmare.

[night osprey]

how would you do it?

[maiden wadi]

No one can answer that until you give the why. Need use cases to give alternatives.

[night osprey]

"the why?" I already told you what I wanted to do

[dawn gazelle]

When you spawn any ZombieBasic or child class, that variable would be able to contain them.

[night osprey]

yeah, the thing is I need to set the default value.

[dawn gazelle]

The default value is like saying "This is the thng inside the variable currently".

You don't need to do that.

When you spawn something, then you set the value of the variable to the thing you spawned.

[frosty heron]

You can't from the abstract class since there is no instance you can set it to

[hallow jungle]

hey people, I'm having an issue, I have an WidgetBlueprint that is either added or not on viewport, so when its not on it has a NOT VALID value, and when its on is VALID, but i'm struggling to send it to the "not valid" value after its valid (and removed as in the image).

Chat gpt told me if i set it and dont put anything after the set it would be set to none but that was a lie haha

[lunar sleet]

Remove from parent doesn’t destroy it I think

It’s just the opposite of add to viewport

Why you’re trying to make it invalid is the question

[hallow jungle]

the widget is not supposed to show after a button is clicked, but is supossed to show when other 3 buttons are

i managed to get it to show on those buttons, but after I remove it from parent the widget wont show again after I click the buttons where its supposed to be shown

i reading it all again to see if confusing 🤣

[fiery swallow]

Thats actually true, it just doesn't get rid of widgets

If you want to remove and re add the widget

You likely don't want to clear its reference but rather set it's visibility to hidden / visible instead

[hallow jungle]

dang it will be so much easier that way, I completly forgot about it! Thanks Moxie!

[proper tulip]

I have a 2D sound that plays when I jump, How would i get the sound to stop playing if i am falling? I dont have a falling state in my Animation Blueprint. (Not too sure if I need a falling state to do it.) Im using the default Jump (not entirely sure how the template jumping works either.)

[frosty heron]

With character movement component there should be on movement changed event

[proper tulip]

this?

the node?

[frosty heron]

Sure, play around with it

There should be falling state iirc

[proper tulip]

hmm

[mortal coral]

How can I spawn and simultaneously possess a new character?

It's causing me issues that BeginPlay fires before I'm able to possess. This is not a problem on game startup, but in-game when spawning new characters creates issues

[frosty heron]

Single player game?

[mortal coral]

No

but networking is unrelated to the issue, this is a problem even just running on the server without other players

[frosty heron]

It's related since on posses gets called on server

So for single player you can just use that event

To do something on possess, instead of begin play

[dapper forge]

Hello.
4.27. attach actor to component does not snap it onto the desired socket or position.. it stays where it was "attached"
what do?

[mortal coral]

Ah, that makes sense

There's no way to mimic startup behavior when spawning a new character though?

[proper tulip]

Okay 1 ) How would I connect this jump IA event to the rest of this code? And 2 ) Should I just use the Space Bar event?

[frosty heron]

What behavior exactly?

You can use spawn actor deffered, if you want to do something before spawning the actor

But if you need to do something when a pawn is possessed, just use the on posses imo

[mortal coral]

On game startup, characters are possessed prior to BeginPlay, because everything happens simultaneously

but OnPossess is a reasonable workaround

[frosty heron]

I never ventured inside the game mode so hopefully someone else can clarify

[coarse condor]

I'm trying to get the player to just be slowed for a couple of seconds. The slow part of it works, but the speed doesn't come back even though I'm adding back the difference a few seconds later, any idea why it's not putting the speed back to normal?

[mortal coral]

Thanks. On Possess will work for now at least 🙂

[dapper forge]

Im trying to teleport actor that touches the trigger, but it never gets teleported.

[frosty heron]

The cast likely failed, or the overlap never happend (collision settings)

[dapper forge]

it did happen.

it did fired

[frosty heron]

You can use print string to debug, print the other actor, print on cast failed and print on after set actor location

Are you able to print the values? I don't see how else to debug this

Kinda straight forward to find out

[wise ravine]

how do I get a vector x a float (ping please)

[frosty heron]

Can you print strings @dapper forge , check the other actor value

[frosty heron]

What is oxygencabparent derived from? Try posting a video

[dapper forge]

i have 2 actors, 1 is teleporter, and second is OxygenCanParent. on screenshot is teleporter logic. OxyCanParent is just actor with mesh that is simulating phyiscs

when i drop oxycan into teleproter collision trigger, it does not teleport

[frosty heron]

Well simulating pyshics can be the reason ? I am not sure

[dapper forge]

i tried disabling the sim

[frosty heron]

From what I know, if you simulate pyshic you are detached from the root

[dawn gazelle]

You can create the multiplication node off of the vector and right click on the pins to change their variable type.

[frosty heron]

My guess would be the part where you enabled physics

[wise ravine]

oh i tried that without the vector being connected and it just converted both

but yes that works thanks

[dapper forge]

huh

[frosty heron]

The static mesh component is most likely detached from the actor? I think.

Maybe you want to try other comp and teleport the component instead of the actor

[dapper forge]

i tired to do it this way too

[frosty heron]

When you simulate physic as far as I know, it will be detached from the root

So even if you move the actor

It probably won't affect the static mesh comp that is set to simulate physics

You probably want to detect when the teleporter collide with the component

Not the actor

And move the component instead of the actor

[dapper forge]

the problem is, i cant move components or actors

it just refuses

ignores

what im tyring to do is attach actor to actor, and snap child onto position (key into door keyhole for example)

and it just never snaps onto socket, world pos, local pos

[frosty heron]

Check your attachment rule

Maybe try snap to target

[dapper forge]

..

[frosty heron]

But if you are trying to attach simulated physics components then I have no idea

[dapper forge]

no, im not trying to attach sim physics

[frosty heron]

Well I never run into issues my self

Can confirm attach to component attach to actor works

[dapper forge]

it just doesnt

[frosty heron]

What's that code even meant to do?

Attaching self to null parent

[dapper forge]

can you jump into public boole?

[frosty heron]

You need to plug the parent pin, parent being the component

What's a public boole

[dapper forge]

vc

[frosty heron]

I can't, on bed

Work soon

[dapper forge]

it never snaps

[frosty heron]

I haven't seen the right code

[frosty heron]

#blueprint message

[dapper forge]

there is 3 nodes

[frosty heron]

What you showed me earlier was a mistake

You are attaching to nothing

[dapper forge]

it gets fed socket name

it never snaps

[frosty heron]

Socket name from what component?

[dapper forge]

socket name gets fed correctly, treid print string name

[frosty heron]

The parent is left blank

And it doesn't make sense to attach an actor to one of its own component

[ionic quiver]

I'm getting a box collision and seeing what are the current overlapping actors. When the static mesh actor that is being overlapped is set to moveable, it detects 1, but when it's static, it's 0. I have both collisions set to custom, to eliminate that as the reason for this.

Anyone know why setting it to static breaks overlapping actors, and is there a way to keep it static but still get them?

[tawdry walrus]

You need to get the actor you want to attach too and put it in the target input and get the component and put it in the parent input

[wise ravine]

what is this doing/

i'm trying to get this

wont appear

[frosty heron]

It's checking if the object implement a specific interface or not

[wise ravine]

i mean the toggle on the end

it doesn't seem to execute anything

[copper chasm]

I have a Data Table that has in it a structure of booleans, I can check which stats get a bonus by character race - when I split out the structure pin I just get the structure, which I ASSUME has the bool data in it, I just don’t know how to check it without 6 different if statements (and that feels incorrect)

[dapper forge]

im trying to attach cube to a static wall. what should handle attachment logic? cube should "attach" itself to a wall or wall shoudl attach cube to itself?

[frosty heron]

Maybe the actor you pass doesn't implement the function

[wise ravine]

it does i checked with breakpoints

[frosty heron]

Then look at the implementation

[wise ravine]

^

[frosty heron]

That

S not the implementation

Anyway

You probably pulled the wrong function

[wise ravine]

haha then what is?

[wise ravine]

i would assume so

[tawdry walrus]

The cube should attach itself to a wall if the wall is actor you will need to use if am not wrong "attach actor to actor" node or something like that

[frosty heron]

Make sure you grab the one with the message icon on the top corner

[wise ravine]

these interfaces are always confusing with their function naming

[frosty heron]

You are the one in control of the naming tho

[wise ravine]

that is probably why 🤷‍♂️

[frosty heron]

Well do you have toggle function inside your blueprint interface?

If you do, call that function ( a letter icon should be present at the top corner )

[wise ravine]

got it to work

how does it look optimization wise?

[frosty heron]

What optimisation

Quick tip, don't use interface for "optimization".

Mostly youtube bullshit

[wise ravine]

i mean because of the cast

[frosty heron]

This code is soo redundant

[wise ravine]

redundant? haha how

[frosty heron]

Just get rid of the interface check at this point

[wise ravine]

shi u right

hold up

[frosty heron]

If you want to use the interface then don't cast

Just plug hit actor straight to the toggle msg

You are not calling the toggle inside the blueprint interface, atm no interface is even used

Lastly make sure your bp light bulb, toggle event calls the toggle switch

[wise ravine]

yea but the interface check wasn't getting me a ref to the custom events in the actor

[copper chasm]

This is what I have right now, I feel like breaking the struct just to make an array is stupid, but I don't know how to get the bool info from the struct otherwise

[frosty heron]

You don't need to if you use interface

You call the interface function

Which is implemented in the actor (bp light bulp) in this case

[wise ravine]

shi i see it , gimme a second i'll try it

[frosty heron]

Gonna go b to sleep gl

[wise ravine]

alr thanks, night

[dawn gazelle]

GameplayTagContainer would probably be better for this. Then you can add and remove specific tags to the container, and it can generate an array of all the tags so you can do what you need to with those tags.

[steel star]

Ok what am i doing wrong here .. isn't there a "Set Physics Linear Velocity" node? All I see are these. And anyway, whats a drive/target?

Actually even better, why is there an Actor -> Get Component Velocity and not a Set? If it can figure out who is in charge of that to get the value, like .. just set it too?

[left valley]

quick newbie question, what's the difference between a points:grid and a points:pathing grid in an EQS test? And when should either be used?

[sudden nimbus]

grid just generates a grid of points, whereas pathing grid generates only points that are on the navmesh

[left valley]

makes sense to me, thanks

[sudden nimbus]

i believe it only returns points that have a navigable path from the context, and you can specify a distance limit to those points as well

[copper chasm]

The info I am accessing is inside a data table, I don’t feel like tags are useful in this specific instance (I do use them for other things)

Unless you mean putting a tag container in the structure for the DT, which like….maybe?

[undone bluff]

add impulse with vel change set to true will let you set the velocity

keep in mind get component velocity is velocity relative to the root component, physics linear velocity is absolute

[sudden nimbus]

as designed, assuming that arch up at the top is a return line to the for loop, this code either loops infinitely if any of the booleans are false, or does nothing if they all are true, this is probably not what you intended.

If you want to know if any of the flags are true or if any of them are false, then use Contains Item on the array you've built from the boost flags.

If you'd rather run the same code for each of the stats, you could do this:

note however that you should store that map into a local variable and then operate on that, otherwise it will make the map on each loop which is pretty wasteful (and then you can use a reference to the variable to clean up spaghetti as well)

As far as I know, there is no way to just iterate over the keys/values of a struct unless you do something like what you are doing (you aren't missing anything there)

I'm ignoring design questions here-- yes you could use gameplay tags (and they are awesome!) or any number of things that might be better designs. just focusing on the exact question

[copper chasm]

Okay that was my big problem, was pulling out those bool values based on the DT. Hopefully I only have to make the array the one time 😅

Thank you

[frosty crescent]

Any idea how I would implement
a(n) = 3n - 1
in blue print

[cyan spire]

Hello, i have a question regarding Struct Arrays. I made a struct (Item Quantity and Item ID), i made a array of that struct in my variables. How can i "create" a struct member?

[versed sun]

Make Structname

[dawn gazelle]

Exactly what I mean.

Then within your data table, you just define what tags are appropriate for the item in the data table. When you need to do some functionality based on those tags, you can create an array from the Tag Container and loop through them as you need and figure out what to do based on the tag being present.

[dawn gazelle]

You mean like a function?

[undone bluff]

get a reference from the array by index ("get (a ref)") then set members in the struct

the array element in the for loop only gives you a copy

[frosty crescent]

Maybe idk about functions haha ill look it up

Ty though seems like the answer

[wanton goblet]

So I feel like this should be easy to do, but I can't figure out how I'm messing this up. I'm setting up a combat music system for combat states, including resetting when all enemies are out of combat or dead.

I have an array formed by a 'Get All actors of class' which gets all of the enemies in a given level, which have a Boss Behaviour component with 'InCombat' and 'IsAlive' bools, I then want to check if those states are true for all items in the array, but doing it the way I have doesn't get me that, it just gets a smattering of all the different bools, not the overall condition.

Basically I need a way to see if the conditions are false for all members of the array, with a variable total length of the array, but I haven't found a clear way to do that (all online tutorials show fixed arrays with explicit array item ids being tested individually)

[frosty heron]

Make a function that loops on the array with for each loop with break.

When an element is false, you return false.

on completed return true.

[wanton goblet]

Can you please elaborate?

[frosty heron]

Which part are you struggling with?

Break it down and do step by step

[wanton goblet]

like this? I'm getting the same results

[frosty heron]

Let's start by creating a function..

The input would be an array of your boss base

[wanton goblet]

what would that function do, just the boolean check?

[frosty heron]

Yes

[wanton goblet]

ok

[frosty heron]

You want to find out how to check if all of the actor is dead right?

[wanton goblet]

dead or out of combat

[frosty heron]

Output can be a boolean, call it bDead

One function at a time, just check if they are dead. You can do the same with out of combat with the same logic

[wanton goblet]

building that

nope

same results, where did I mess up

[dawn gazelle]

You are looping, but you're not taking -all- of the items in the loop into consideration. Only the first thing you find.

[wanton goblet]

How would I check all of them without referencing their specific index

[dawn gazelle]

You probably want that loop in the function itself.

return false if one is found alive within the loop

on completed of the loop, return true (noting that they're all dead)

[frosty heron]

The input is an array of boss ref

You don't want to do the loop there, you do the loop only in the function

You are still doing the same mistake

[wanton goblet]

apologies, I'm confused a little, why would the 'for each loop' need to be within the function?

I set this up but I still get the exact same result

[frosty heron]

The function loop thru a given array, checks if any of the element is false, if there is an element with a value of false then the function will return false

[frosty heron]

You are setting it up wrong and you are not doing what was told

What you are doing is extremely simple

On the false pin, return false

On true do nothing

On completed return true

[wanton goblet]

So what would break the loop then?

[frosty heron]

Well the break is not needed actually

Since the moment you return false

The function cease to run

[cold lion]

Hi I am trying to make my door mesh dynamic and for some reason the cube I put just disappears after I touch the collision box? (and does not return to it's origin)

[wanton goblet]

I did this, exactly as you said but I get the same exact results

'

every enemy that dies triggers the print string

[frosty heron]

You didn't do as said tho

[wanton goblet]

How did i not?

[frosty heron]

You are setting there not returning

You are already half right before but now you removed the returned node

[frosty heron]

What you have here will always return true

Regardless what happebd

Try to go over the node and understand why you get such outcome

[wanton goblet]

I did exactly what you said, and it still does not function correctly

All Dead never returns true

even when all enemies are dead

[frosty heron]

Can you stop saying that

I can do what you need in 10 seconds

But I'm at work

[frosty heron]

Debug on your end, check if you actually set the instances boolean to false (the bool being is alive)

[wanton goblet]

That's set in the system here, and yes, it functions correctly

default to true

Ok, finally got it to work, the return node false was on the wrong pin

Thank you for your help, sorry for any frustration

[chilly geyser]

Is there a way to increase / decrease the size of a widget based on arm length of a spring arm. (don't want a 1:1 ratio of increase/decrease)
I don't know what formula to use to get these results....
1800 : 25
1450 : 43.75
1100 : 62.5
750 : 81.25
400 : 100

[dawn gazelle]

Map Range Clamped?

[chilly geyser]

! don't know what this is, Dr. Google time, thank you!

[chilly geyser]

! Thank you! Didn't know this was a node! XD

I was trying to figure out what formula I needed to use haha

[spark steppe]

you could also use a floatcurve and sample the value (if you want non linear scaling)

[undone bluff]

@chilly geyser just making sure you see Ben's answer, your example results don't seem linear

[dire vine]

Hello guys , one question
I have added one component named cesium globe anchor , and when i spawned the aircraft , tht component values are coming different on server and client

[gentle urchin]

Wasnt this not exposed to bp for the longest time?

[frosty heron]

How is the component values set?

[fierce bay]

Hello, I'm want to have a character that turns in the direction of the movement.
I checked in Character Movement “Orient Rotation To Movement” and unchecked “Use Controller Rotation Yaw” of my third person character, but it doesn't work.
and uncheck “Use Controller Rotation Yaw” for my third person character, but it doesn't work.
I've added an arrow on the capsule, but no rotation.
Any ideas?

[dire vine]

i am setting the lat long Alt at the time of spawning , and then i am giving possesion to the player controller.

the lat long alt variabl is the values in component

[frosty heron]

Show code

[frosty heron]

Does the entire logic here only get called by server?

[dire vine]

yes

it is in game mode

[frosty heron]

So I would assume you edit the values in move to longitude?

[dire vine]

yes

its pre defined function of cesium

[frosty heron]

Yea client wouldn't know that

Unless you are editing replicated variable

I would suggest to just do the calculation pre spawning, and set via expose on spawn

The client should get the same value when the copy in their machine gets created

[frosty heron]

Can't c in my mobile

[dire vine]

okay wait

[frosty heron]

You need to be aware that w.e u doing there only done in the server copy tho

[dire vine]

ohkay

[frosty heron]

I would just init the variable via expose on spawn

[dire vine]

so you mean we need to re update that value once the object is spawned and possed by player

[frosty heron]

Otherwise you will need to use replicated variables

[dire vine]

ohkay

[frosty heron]

I mean it would be easier to just set a param on the spawn actor it self

So when the client receive a copy it will have that parameters

[dire vine]

ohkay, will try something like that

[frosty heron]

This only work soo far tho, as in you will get the same values initially but if they need to be sync all the time, then you will need to mark your variable replicated

[copper chasm]

Ohhh, I see what you mean (sorry for the late response I go to bed like a grandpa) - probably not for the specific thing I'm doing (on character creation I'm just checking which attributes get a boost, probably not something that will need a tag in it forever) but I will for sure use this for things like feats and traits

Although I just realized that a bool telling me whether or not to boost an attribute is useless when trying to then dictate which attribute to boost, so maybe I'll rethink the entire process LOL

[gentle urchin]

wouldnt it be better to have the stats as some tmap in the DT, and just set them that way ?

or tag container, if you only care if they exist .

your method gets complicated whenever you decide to change the attributes

add one, remove another..

using tags fixes this

gives you nice flexibility

boost also sounds prettty generic and unspecified. In my case im using values in the DT to dictate the amounts

that way i can 'configure' new things directly in the DT, with my supporting system just handling things (unless its brand new, and need to also be implemented in the pawn (like changing movementspeed)

so any given thing (in my case items) can be given a set of attributes

this data just churns into my supporting system and 'simply works'

[copper chasm]

hrm

For right now, I'm trying to do character creation, and each ancestry has specific attributes that get boosted at level 1. In the DT I have all the base info for each ancestry (which at the moment includes which attributes to boost) which I want to feed into the attribute actor component to apply those boosts to the attributes

I don't think it needs to be some kind of permanent flag

(I don't actually HAVE character creation atm, I just have a debug character set to level 1 that I can swap ancestries on as an enum and I'm trying to make all the stats populate correctly)

[maiden wadi]

Just curious. Are you C++ capable? Even slightly?

[gentle urchin]

(This static data could in my example also have the growthrates of the stats per level, if they were linear

Or set them up with curves )

[maiden wadi]

GAS would solve this by just simply making an infinite duration GE with the stats for the ancestry. :/ Apply it and forget it.

[gentle urchin]

Thats also (as often times) a way of achieving it 😄

Extremely flexible system out of the box

But got some learning curve 🤣

[copper chasm]

I did some work in GAS, and then hit a roadblock with turn based stuff, so I dropped it

Between my adhd and having to jump up and down from my desk for stuff, I like BP for being able to pick up where I left off 😂

[copper chasm]

It’s D&D rules - the stats change so infrequently and in such small jumps I didn’t bother with curves

Just “oh, you’re a level 1 elf? You get +2 to int and dex and -2 to con” or whatever, and then down the road you hit level whatever and can pick what to +2

There are probably a few ways to do this, but

[gentle urchin]

yeah for sure

many ways to skin a catdip your toes

[copper chasm]

I have kind of a GAS-esque system I’m working on in BP, maybe I could just set them up as tags and apply them as buffs and just hide the buffs from the player

Can you apply the same gameplay tag twice? I don’t think you can

[signal perch]

When performing a line trace in the Construction Script, it does not detect collisions, but it works when connected to Begin Play. How can I solve this problem?

[lone garnet]

Anybody ever come across a bug that seems to have been around since 4.22 in UE5, crash on anim instance set

[cyan spire]

Hello, can someone tell me how to set a new member in my "Unique Array" when the item id is the same from the first element as from the 2nd element? So if the ids match from my input array to my "unqiue" array? Im trying to filter out duplicate array items which have the same id :

[chilly geyser]

Sorry Just now seeing this. I'll check out this node too. Thanks!

[chilly geyser]

Just saw it when I woke up thanks to your @ haha, Thank you.

[heady burrow]

Im trying to rename/create an asset but it says the name is already in use, but its not, is there some cache that has to be refreshed or something like that? it happened to me before but went away, this time is here to stay apparently.

[fast compass]

Is there a way to instantly finish my timer by handle? I do not want to just clear it, but finish it and run the event its assigned to do when it finishes

[stone field]

So I recently stumbled on the possibility of being able to Disable BP nodes.
My question arises, could this be done conditionally at build time, or via some other magic means.
( I want to disable certain plugin bp node functionalities for platforms which do not support them, but which cause compilation errors if the nodes are present while plugin is disabled )

https://www.cbgamedev.com/blog/quick-dev-tip-51-ue4-ue5-disable-blueprint-node

[copper chasm]

try closing and reopening the editor tbh, there's probably a smarter way but

[dry sleet]

Did you previously have a asset with that name?

If that is the case, you probably have a redirector left.

Redirectors are assets that take the same name of assets you've renamed, so that the engine knows what the new name is if something is looking for the asset using the old file path.

The way you get rid of them is by right clicking the directory containing the newly-renamed asset, and choosing "Fix up Redirector References" (or something like that). After that process is done you'll be given the option of deleting the redirector.

Just be a little bit careful! After deleting a redirector, you must be sure that all the assets that were "fixed up" are saved properly, and never roll them back in Source Control (for instance) -- because now that redirector is gone and can't do its job anymore.

[chilly geyser]

How to set an array of bools to true/false?

[stone field]

ForEach perhaps

[chilly geyser]

Tried doing that but not sure how to execute it properly I think

[stone field]

can show screenshot of your setup

[chilly geyser]

Don't know how to use it for this

[stone field]

you are making array on each iteration

that does not make sense

[chilly geyser]

I know

thats why I said Idk how to do it

lol

[copper chasm]

split the pin

[chilly geyser]

Tried searching like 10 Dr. Google pages for it

[gentle urchin]

Trigger it manually aswell as clearing

[chilly geyser]

Split isnt an option for it

[gentle urchin]

No.....

If false set false?!

Just set false

All of em

And you cant use the regular foreachloop

[copper chasm]

oh yeah i guess lmao

[chilly geyser]

Thank you!

[gentle urchin]

Its a copy loop

Not a reference loop

[copper chasm]

no don't listen to me my coffee isn't done

[chilly geyser]

oh no

I lost it

was about to do that

[gentle urchin]

For Loop (0 to Last Index) -> set array element (boolArray, false)

[copper chasm]

sometimes our desire to be helpful overrides our ability to be correct 😭

[chilly geyser]

Like this?

I feel like that would just change the other variable x amount of times

[chilly geyser]

Can I see the loop you posted? Maybe Ill get an idea from that

[copper chasm]

Let me make sure it does what you're wanting before I post it, I would feel terrible sending you down the wrong road

[chilly geyser]

Nah, I might just get ideas if it doesnt work

Trying some things with this one right now >

Squize — Today at 11:38 AM
For Loop (0 to Last Index) -> set array element (boolArray, false)

[copper chasm]

that would look SOMETHING like this

idk if that's 100% correct, but that's getting the last index of the original array, running from 0 to the last index, and for each index, setting something

[chilly geyser]

That definatly looks like it will work

ima try it\

[copper chasm]

probably doesn't want the check I assume

[copper chasm]

it occured to me while sketching this out at the dr's earlier that I have no idea how i'm going to make a character creation system in the first place, but I reckon I ought to make sure the thing I'm working on works before I try to eat that elephant

but also, I think if I just make an array of the attributes enum, I can just put an index in for each attribute that gets the boost and go from there

KISS

[chilly geyser]

It doesnt seem to be working, but when i read it, it seems like it should so maybe my code somewhere else is wrong

[gentle urchin]

Show code

Item is checked

Should ofc be unchecked

[chilly geyser]

nah, i have it set to false

on mine

[gentle urchin]

Good

Show code

[gentle urchin]

That works when connected

[chilly geyser]

thats why I think its not working somehwere else

[gentle urchin]

Y

[chilly geyser]

Idk, trying to figure it out

making whole code look nice, then ill post

[gentle urchin]

😆

[copper chasm]

I do that shit too, I make sure my stuff is TIDY before I show it to folks lol

"I may be dumb but my coding practices are on point"

speaking of dumb, question - when I run in simulation and throw a delay node with a breakpoint at the end of my code, the code is correct, I have a map with values that show correctly in the code, but when I click on the map in the variables tab, the default values are still the same - that's supposed to happen, right? I'm like 99.9% sure it is, because duh default, but

variables in the variables tab will only ever show their default values, even in simulation?

[chilly geyser]

wish i could zoom by a half point lol

[copper chasm]

This is how I ended up solving my early early problem - not with tags or maps or booleans, just the same damn enumeration I've been using for everything else

womp womp

[chilly geyser]

how come all your nodes are like half opacity

[copper chasm]

I really need to make a character sheet, because printing values over and over to make sure they're right is a PITA

[copper chasm]

i took that screenshot while running in simulation lol

[chilly geyser]

XD

[copper chasm]

my poor PC, I have like 4 instances of UE open and I'm playing mtga on my drawing tablet D:

[chilly geyser]

sorry that you have to squint, idk how else to show all of it lol

found the problem

rofl

from this post

nvm

[copper chasm]

you could theoretically throw it in that website, for future reference

[chilly geyser]

its just a bad image

thought the branch was both 23

what website

[copper chasm]

https://blueprintue.com/

[chilly geyser]

https://blueprintue.com/blueprint/-ilwrrpe/

did that work?

lol

[copper chasm]

yeah

[chilly geyser]

it un did my fancy stacking

[copper chasm]

I assume Var Prayer 1 Over Head Array has all of the Var Prayer 1 booleans in it?

[chilly geyser]

Yes Sir

but

Maybe I need to do it on pre construct

lemme try that rq

nope

[copper chasm]

that might work for debugging it, if you throw athat in after the array set node

maybe, or maybe after the completed node before the next set, unsure

[chilly geyser]

I debugged that its not setting it to false using a primitive method lol

[gentle urchin]

It does tho

[chilly geyser]

its not on mine

[gentle urchin]

The code is correct

[chilly geyser]

I know, seems to be correct when i first read it

[gentle urchin]

You got something else going on

[chilly geyser]

thats why i think theres something wrong with my code somewhere else

[gentle urchin]

Not just seem

I know

The code works

[copper chasm]

if you're doing it with a button, it's possible if more than one actors use that bool

maybe it's screwing with it

[gentle urchin]

So its either an order of operations or something else you got going on

[chilly geyser]

those two button are the only buttons I am clicking, and the only other thing than whats in the code that uses those bools, is the array

[copper chasm]

actor components really only mess with the actor they're attached to unless you tell them otherwise, right? so I don't need the actor components to set owner variables - if the AC has the variable, the owner of it can reference it whenever?

I guess I can test that

[copper chasm]

you only have one instance of BP Third Person Character in your level?

[chilly geyser]

yeah, for this test

lemme double check i have it set to 1 player

[copper chasm]

idk why that's relevant, but I'm just riffin' trying to figure it out

also can you screenshot the details panel of Var Prayer 1 Over Head Array

[gentle urchin]

how areyou verifying that it's working/not working

[gentle urchin]

!?

[chilly geyser]

no

thats how I made the array

[gentle urchin]

and how do you check them

[chilly geyser]

this works right?

[gentle urchin]

no

not at all

[chilly geyser]

really?

[gentle urchin]

ofcourse not

[chilly geyser]

it says true in top left when its on

[gentle urchin]

well, sorry, itis not ofcourse but

making an array like that is a copied array

[chilly geyser]

It just stays on

[gentle urchin]

so the original variable is independent from the array variable

[chilly geyser]

My array is wrong?

[gentle urchin]

its not a reference to a bool

its just a bool

yes, your array is wrong

[chilly geyser]

😮

[gentle urchin]

but there's no array that takes references of variables

so you either have to refactor

to using only the array

[chilly geyser]

Nosebleed

[gentle urchin]

or make due with your bunch of variables that you manually must alter

[chilly geyser]

I thought I have to set the array on construction

like this

[gentle urchin]

yeah no

the variables are not affected by whatever you do to the array

[chilly geyser]

so its a copy and not a refrence?

[gentle urchin]

yep

[copper chasm]

bingo

[gentle urchin]

it always will be

[chilly geyser]

so, how to fix?

[gentle urchin]

either set the variables manually

[chilly geyser]

rough

[gentle urchin]

or refactor your code to only use the array

[chilly geyser]

Can I name the bools in the array?

[gentle urchin]

no

[chilly geyser]

super rough

[gentle urchin]

you can make a Map

name + bool

if name matters

[copper chasm]

that's probably what you want tbh

[chilly geyser]

What is the node to map?

[gentle urchin]

you'd create a new variable

[native vector]

alright so I have this system where the player can pick up physics objects with a line trace. But when the player holds the object, the object teleports to the maximum distance of the line trace, leading to an issue where if a player were to pick up an object on a table for example, the object would teleport through the table. How can I make it so when the player picks up an object, it keeps the same distance as the line trace hit result to the player camera?

I hope that makes sense

[gentle urchin]

select the key variable first (string? Name? GameplayTag?)
then on the right side swap pto map

[gentle urchin]

you'd set the location of the item to the trace location