blueprint

[snow halo]

it's only when I tried to import some mixamo animations, and then retarget them, and after that it asked me to do some replacements, and I pressed No on that window

and then it gave me that error

but Im still able to play game game in editor and run it like normal

[crude helm]

I would say it would work
get hand socket weapon, call interface on "use skill", if it has it works, if it doesn't do nothing, no casting, might need a is valid though.
then on the "use skill" function it could loop trough all skill and cast all, or like cast first, and set next index for next use

[surreal peak]

The warning is very vague but I would assume the skeletons the AnimBP and the ControlRig use are different

[snow halo]

you're right, they look different, ABP_manny is more feminine, skinnier, wider leg stance, the skeleton one is more upper body muscular and wider arm stance. I wanna keep the right-side masculine one. Not sure how

the error appears to take me to the ABP <-

In the game it appears that im using the fat one

[dark drum]

I believe it's the following tick. Never really checked to be honest haha.

[snow halo]

ok that error is gone now

somehow gone idk how

[surreal peak]

Yeah could be, it uses the FLatentActionManager, so chances are high the action is only processed next frame.
Kinda sad :D

[young meteor]

Any easy way of setting a "play speed" of a timeline?

I would like to change a variable based on this graf. But how long time the graph (Timeline) takes to play is something I would like to be able to set as well. How do I do this?

[surreal peak]

You can make sure the Graph is exactly 1 Second long (make sure you either set it to 1 second max length or to tick that the last key is used for it.

Then you can use the Timeline Variable (it's a component in the end, so you can find it in the variables list) and set the PlayRate to 1 / Duration. E.g. for 2 seconds it will set the PlayRate to 1/2, so play half as fast, resulting in it take 2 instead of 1 second.

[young meteor]

I've set Timeline length to 1 second.

Is it one of the Output pins, or where is this Timeline Variable?

Or any of the Timeline Window options?

[surreal peak]

Set the Lenght to 1.0 please.

[surreal peak]

You should be able to either just get it if you rightclick and search for Timeline, or find it in the Variables list, as I already told you.

[snow halo]

You know how they say use interfaces to pass booleans from one place to the other right? Instead of hard casts or even regular hard object (variable) references that everyone thinks are okay?

oh i forgot to check it?

in the input

[inland walrus]

Is there a way I can make these checkboxes unclickable and trigger through blueprints?

[snow halo]

"Create Widget"

actually at this moment since this is coming from my character my guess is that this will not really be that bad

because character will always be loaded

or i should make it nested in the widget

[thin panther]

No. I've literally never heard that in my life. Is this some variation of the "casting is expensive" myth?

[snow halo]

probably

[frozen ledge]

Is there any difference in the way blueprints and C++ class objects serialize variables for SaveGame? I added the SaveGame property to one of my booleans in my Blueprint but it doesn't serialize. I have a subsystem which iterates through every actor in the world, checks to see if it implements that interface and loads the serialized data. This works for 99% of all my objects in the game, aside from this one blueprint I'm creating

[severe pollen]

I can get the Complex Collision Mesh setting to work, does anyone know what I am doing wrong? The mesh on the left is a simplified version of the mesh on the right. The right mesh has set Complex Collision Mesh to the left mesh. It actually is shown properly in the mesh editor but not in the world. What could be the reason?

[maiden wadi]

No, they save the same way assuming you're using the savegame archives.

[maiden wadi]

I'm on the very opposite end of that "they" spectrum. I personally think that interfaces are trash for the reasons that people usually use them. It creates really shitty, indirect, hard to follow code. People started abusing interfaces because a few derps got lucky with using them to break linkers and went out and told the world how dumb they are for not actually understanding how linkers work. When in reality, you simply need to understand how to manage linkers correctly and to create correct code only classes and to manage your asset linkers. You use tools like asset bundling, softrefs, etc and you can keep simple code setups using casting and composition and not have to care about weird interface hackery.

[frozen ledge]

Right now I'm using FObjectAndNameAsStringProxyArchive, is there a different archive class I should be using?

I'm using ChatGPT and it's telling me to use a different made-up class that doesn't exist lol

[maiden wadi]

No, that's correct. Are you marking it as SaveGame?

struct FTarrionSaveGameArchive : public FObjectAndNameAsStringProxyArchive
{
    FTarrionSaveGameArchive(FArchive& InInnerArchive) : FObjectAndNameAsStringProxyArchive(InInnerArchive, true)
    {
        ArIsSaveGame = true;
        ArNoDelta = true;
    }
};```

[frozen ledge]

Yup. I would show code but I'm under NDA but it's pretty typical, I'm just passing in an array of byte data using an array of uint8

[maiden wadi]

That sounds right. Mine works just fine on both BPs and C++ classes. 🤔

[frozen ledge]

It's really weird, I have 2 booleans, both of which have the SaveGame property enabled on them. To do a smoke and mirrors test I have a boolean which default value is true, then on BeginPlay it's immediately set to false. Looking at my SaveGame file I can see it properly gets serialized (but ONLY if I set it on BeginPlay) but the other one, which I'm updating upon breaking my actor (it's a breakable wall) never gets serialized and always resets to its default value. I have an interface used to determine which actors opt into SaveGame and I don't have this issue anywhere else

[maiden wadi]

The two booleans are on the same class?

[frozen ledge]

yup they're both part of the same Blueprint class

I'm doing saving / loading purely out of Blueprint

It might just be my somewhat unconventional setup, I see other ppl online make USaveGame objects and pass variables into there, I have a subsystem which checks to see which actors opt into an interface

but if you're saying it works with the savegame archives I'm really unsure

    // Manually handle Blueprint variables marked as SaveGame
    for (TFieldIterator<FProperty> PropIt(Source->GetClass()); PropIt; ++PropIt)
    {
        FProperty* Property = *PropIt;

        // Check if the property is marked as SaveGame
        if (Property->HasAnyPropertyFlags(CPF_SaveGame))
        {
            // Get the property's value from the source object
            void* ValuePtr = Property->ContainerPtrToValuePtr<void>(Source);

            // Serialize the property
            Property->SerializeItem(ArInv, ValuePtr);

            // Debug log (optional)
            UE_LOG(LogTemp, Log, TEXT("Serialized Blueprint property: %s"), *Property->GetName());
        }```

ChatGPT suggested I use this but I'm not doing it this way lol

[maiden wadi]

I use USaveGame. I just generically save any UObject by passing it into my savegame. Which writes it's byte array and some extra data to a struct and that struct gets written into a giant array in the savegame.

Yeah you don't need to property iterate.

[frozen ledge]

Yeah definitely not lol

[frozen ledge]

Yeah that seems to be the typical way of doing it. too late in my project to make use of that unfortunately lol

Thanks for the help, I'll figure something else out

[maiden wadi]

Where are you saving the byte array?

Cause SaveGame is the general way to make it platform agnostic. You'll have issues on some platforms if you're using odd file types sometimes.

[frozen ledge]

In a map of structs, using a name as the key which does a lookup when I iterate through all the actors in the world upon bootup

Definitely not the most optimal way of doing it lol

[maiden wadi]

That's mostly what mine does too, but how are you saving the data on disk?

[olive yarrow]

I've a combobox string im using to change the names into images. However, regardless of option # is is only showing the Goblin Token. Any help on where i went wrong?

[frozen ledge]

Oh never mind I am saving them a custom USaveGame object lol

I'll look more into this on my own, thanks for the help

[maiden wadi]

Don't construct uwidgets directly like this in this function. You'll crash after a little while. Wrap your image in a UserWidget, and CreateWidget that to return it. But for the other question. What are your strings?

[olive yarrow]

like so?
Stringss are the same as the texturefile (option 0 string is GoblinToken)

[maiden wadi]

You need to switch on string and select a local variable then. The String to Int expects a numerical string like 0 or 32 or 9999. Without a numerical string, it'll just return zero.

[olive yarrow]

FAM

ugh ive been using switch on string everywhere else what the fuck am i doing here

thanks facepalm

[shadow flame]

Hello! I'm doing a basic on-screen keyboard however when on touch-screen everything inputs twice. I'm using the OnPressed function, tried putting a do once with a 0.15 second delay on call back.

I'm thinking it has to do with replication. It's a multiplayer game and the keyboard is on the host.

[inland walrus]

Is there a node to unload/remove level instance?

[faint pasture]

show code

from touch to the thing that happens twice

[untold fossil]

Hello! Got a bit of a brainbreaker / paradox issue. So I need to trace complex collisions for a sticky bomb throwable that needs to attach at the exact mesh face it touches, herefor I need complex collision tracing as I can't go around and make all the objects in my world use vertex perfect collisions. But, here's the issue. With trace complex collisions enabled sticky bombs also detect tree leaves, which are just planes. How can I still use trace complex, but not have it detect the leaves of my trees? Seems like quite the challange, doesn't it? Been breaking my head over this for several days. Let's see if anyone here can solve this puzzle.

Ok wait, I may just have found the answer to my own question.

Let's see if this is the solution I'm looking for

[faint pasture]

why do the leaves block that channel?

[dark drum]

Yea, you can specifiy a custom complex collision mesh for you're trees without leaves. An alternative option might be to look at custom collision channels.

[faint pasture]

are the leaves and tree same mesh?

[untold fossil]

Yes, they are

[faint pasture]

I'm assuming you want to stick to tree trunks?

[inland walrus]

Using this node, how can I unload the current level instance and load a new one?

[untold fossil]

yes, but only the trunks, not the leaves

[faint pasture]

you'll have to have a custom collision mesh

[untold fossil]

Yeah, gonna try that tomorrow, I have a feeling it's exactly what I've been looking for

[faint pasture]

I don't see how you NEED to trace complex if your simples are done right

[untold fossil]

Mainly for vehicles which have many small details

[faint pasture]

embed a little bit into the simple collider and it'll look great

[untold fossil]

If I don't use complex tracing, a sticky bomb can be attached through / inside a detail part which makes it impossible to see the sticky bomb, which is a big gameplay issue

A sticky bomb is quite small compared to the size of a vehicle (tank)

I also don't want the sticky bombs to float a short distance from the surface they land on, neither do I want them to be clipping halfway inside the surface. It's vital, for both visual and gameplay reasons to have them stick perfectly on each surface.

[gentle urchin]

Cant you fake the glue part with some thickness,

Thatll give you some leeway for such minor details

[untold fossil]

Well, it honestly works perfectly well the way it's implemented atm, the only issue was the tree leaves. I think if I can simply fix that, all will be good. 🙂

[gentle urchin]

Fair enough 😅

[shadow flame]

was putting together the image for it (multiple points) I found a solution though. I applied a do-once -> delay -> reset on my key class when it gets called.

[full fjord]

is there no way to see an event graph for a destruction blueprint?

[inland walrus]

Anyone know why these levels are stacking and not unloading the current?

[vapid crest]

Hey! I working with UE for 6 years now, and I always struggle to finish projects, mostly because I want to use non-animated characters for my game (like tanks, cars, etc), and at one point or other I stuck. I working on (yet another) Blueprint project, and I need to make my Pawns to move to the player and avoid each other. I think with avoidence I am on a good path by creating custom NavModifier and add as a component (and turn up the cost), but honestly pathfinding is a nightmare for me. As I use pawn, my only way to use Floating Pawn Movement component, but i got many problems, as I want the Pawns to follow my player:

• Simple move to worked, but now not working with Spawned AI Pawn
• Move To stops every time I move with my character to a new way and starts after a few seconds. I used the default settings for the Node
• AI Move To makes the AI Pawn's movement choppy and strange

What I want to know:

• Did any of you know any way to implement pathfinding with Pawns while they avoid each other and not suffering from the aformentioned problems
• If not what other way I can finish my goal. roughly 5 out of 6 of my project depends on this mechanism at a given degree.

[worthy tendon]

print value of CurrentMap see if its actually what you think it is.

[inland walrus]

how do I load a stream level load game function?

[dusky cobalt]

If I have character as base class, but I need 1 child to not use skeletal mesh, I mostly only need for that thing to ''move''. Is it better to use floating pawn movement component or just somehow delete skeletal mesh (disable maybe?) from character

[inland walrus]

Can some please help, I can't figure out why it's not unloading a level stream upon load game

[woeful pilot]

does anyone have a workflow for un instancing an instanced mesh, i need to remove some floating geo

[faint pasture]

can't you set the skeletal mesh component do use nothing?

[dusky cobalt]

im currently testing all possibilities, will see

[wild pumice]

I have a Parent player class that creates a UI. I really need it to instantiate on the character class. Is there a way to prevent all the child actors I can switch to from creating duplicate UI interfaces? They are currently all creating duplicate UIs.

[faint pasture]

show the code

[wild pumice]

It's not much, in the EventBeginPlay I am creating the widget. My question is, can I prevent Child Classes from running code in the Eventbeginplay? I don't think that'll be possible.
My guess is the proper way would be to have a custom event and have another Blueprint call the "create widget" event and have the child classes reference that once instance of the widget.

[faint pasture]

just make the class a variable

base class spawns widget MyWidgetClass

child classes change what MyWidgetClass is

[wild pumice]

wouldn't each child class also have the variable and create their own widgets? I'm looking to only have one widget that can be shared between parent and child. If its not possible, I might have to move all my widget code to another blueprint the Player characters can access.

[faint pasture]

the only change for a child class would be the widget class

wait, why does WB_Inventory_Widget need to be different for child classes?

what should be different about the UI for subclasses?

[wild pumice]

oh, not different.

[faint pasture]

then do nothing

and it'll work

[wild pumice]

I meant I only want one instance of it

[faint pasture]

just make sure your begin play calls Parent:BeginPlay

why would you have more than 1 instance?

don't duplicate the begin play code

the child classes begin play code would have ADDITIONAL stuff if wanted

[wild pumice]

when each child runs their "EventBeginPlay" when they spawn, they all "Create WB Inventory Widget"

[faint pasture]

what are these things?

[wild pumice]

Ok, so I think it would get fixed with Parent:BeginPlay

[faint pasture]

I don't see how there's a problem, are you spawning MULTIPLE pawns at once?

[wild pumice]

yes

[faint pasture]

how are you "changing" your pawn?

[faint pasture]

show more of this code

[wild pumice]

I have posses pawn logic to switch characters

[faint pasture]

the computer is doing exactly what you tell it to do

if you tell it to add a widget to the local players screen on begin play, it'l do that, whether possessed or not

this is why UI handling in pawn is pretty bad

[wild pumice]

Yeah, im noticing that.

I'll rethink my approach. Thanks. I think in the end it'll be better to separate the inventory UI from the player bp.

[faint pasture]

It can be on PAWN bp, maybe, but the timing has to be different

you want to show/hide on possession, not on begin/end play

it's better in the PlayerController thoguh

you still need to update when possession changes

[wild pumice]

I'll try this and handle it in PlayerController that is already handling some of the possession logic.

[worn tartan]

I want to tilt my plane left and right when I turn. This isn't doing the trick. I am super new to blueprints. Any thoughts or direction?

[faint pasture]

what does that do?

why is your airplane a character?

[autumn pulsar]

If I want just a blueprint with a function I can add onto a model, what exactly would I use? I was trying to make a "cast spell" system where you'd pass it a blueprint object and it'd run the logic in that when called

[autumn pulsar]

what is it doing in-game?

[faint pasture]

component probably

[autumn pulsar]

I guess I'd just add the component to say the weapon blueprint?

[faint pasture]

What exactly are you trying to do? You want to add XXXXX to YYYYYY so it does ZZZZZZZZZZZ

[autumn pulsar]

Sort of, say for example you equip a staff, you get a few skills on your bar, one might cast a fireball, but another might cast a heal

[faint pasture]

ok so what ARE fireball and heal in your system?

[autumn pulsar]

Ideally they're both a "spell"

but they do different things

[faint pasture]

which is a __________ in the engine?

yeah this is an ability system

[autumn pulsar]

That's what I'm trying to figure out

[faint pasture]

Fireball could be a struct

Name = Fireball
OnActivate = Projectile (fireballprojectile)
CostResource = mana
Cost = 100

[autumn pulsar]

oh cool, I corrupted an asset fun

[faint pasture]

but for your first draft, I'd make abilities as actors probably

BP_Ability_Base

where BP_Ability_FIreball overrides some stuff

[autumn pulsar]

I was going to make the spell effect, and the skills seperate

spell effect would say be spawned by the animation, and the skill would define which one

[faint pasture]

well yes, you'd have BP_Effect

of which BP_Effect_OnFire is a subclass

[autumn pulsar]

would that be an actor component?

[faint pasture]

I'd do actor itself

then you can add visuals and such trivially

[autumn pulsar]

I see

[faint pasture]

actor isn't ideal, but then none of this is. The ideal setup looks like GAS, but for your first time doing this, and especially for single player, abilities and effects as actors is totally fine

You probably want 3 core classes, the stats container, the base ability, and the base effect

I'd make them as ActorComponent / Actor / Actor respectively

Actor lets you have timelines and a transform, which is useful.

WAAAAAY down the road you might want to look at GAS

https://github.com/tranek/GASDocumentation

[proud salmon]

Make your spell details a structure and attach that to your item, load it on equip.

[autumn pulsar]

If it was as simple as just doing damage maybe, but if it's an AOE attack, or something else, can't just be a struct

[proud salmon]

Anything can be a structure

[autumn pulsar]

but I might be scope creeping for what is essentially just a learning project with no goal

[autumn pulsar]

Yes, but you lose flexibility with one

[proud salmon]

Why?

[autumn pulsar]

because you can't implement functions

*on a per struct basis

[proud salmon]

Well ya, they aren’t code they are data.

Either you put the functions on your weapon (ie a staff loads the structure and sets up its spells) or you put the functions on an actor that is spawned (ie your staff shoots a fireball) and load the data from the structure there

[autumn pulsar]

wouldn't need a struct at that point since the class would have the variables

[faint pasture]

you have a spectrum from everything being a subclass to everything being data

[proud salmon]

If you want one piece of data, sure. If you want multiple, group them all into a structure and load it.

[faint pasture]

subclasses and objects is most flexible but most messy and can get gross
Fully data driven and data oriented is best performing and probably best scaling, but it can take a lot of work.
I'd prototype it with objects first if you've never done this.

[autumn pulsar]

part of the goal isn't to necessarily make something clean but learn the process for designing these kinds of systems

[faint pasture]

just do it with objects first, you can crank it out in an evening

[autumn pulsar]

maybe if you're experienced haha

I'll eventually figure it out I guess

I might just simplify this

I doubt I'll really be doing anything beyond damage

[faint pasture]

I mean it's just a base ability class with stuff like
Activate
Deactivate

Then fireball ability just does:
Activate override -> spawn projectile

[proud salmon]

If you want an example with solid commenting to try and learn from, grab my inventory system, it's free.

https://www.fab.com/listings/57e429e3-3a31-4950-ab18-37cc3bea4de1

It's not abilities but it uses structures, actors and data tables together to create items, vendors, containers, etc.

[faint pasture]

I've got a pretty interesting item system idea, you ever thought about a global item system based around GUIDs?

[proud salmon]

This uses GUIDs.

[autumn pulsar]

I understand what you're going for, it's just not entirely my goal

[faint pasture]

If every item has a GUID you can have all sorts of interesting implications, like trivially nested containers as deep as you want, or gameplay mechanics like poisoning a single apple or associating items with other mechanics

[proud salmon]

Sure it is, your goal is to learn

it's free blueprints that have comments to learn from 🙂

[autumn pulsar]

I'll check it out when I have time, I just don't think it's quite related to what I was trying to do

[proud salmon]

👍

[autumn pulsar]

I have a year experience with C++ so I'm not totally lost

Just sort of figuring out the nuances of designing systems

[proud salmon]

For sure, it can get complex quickly haha

[autumn pulsar]

Oh yeah, and there's a bunch of different ways to do the same thing

I made a sort of Dark Souls Hitbox system lol

I can use animation notifies to spawn hitboxes that deal damage

I'm currently just trying to figure out a good way to do weapons and animation sets

but also make it semi generic so both monsters and players have sort of the same structure, just different drivers

Though I'm not sure of the performance of constantly checking tables for shape traces every frame

could probably store it in a variable

[proud salmon]

Ya my system stores the montage soft reference in the data table for the weapon and passes it to the character to play when it's equipped. The animation notifies then enable/disable the traces, combo timing, etc.

Can do either in front of you (i.e. hit a tree easily) or detailed trace (follow trace points on the mesh)

[autumn pulsar]

I was thinking of using a structure to store soft references in the weapon, then it just loads them all when the weapon is equipped

[autumn pulsar]

my current system is pretty flexible, you can spawn hitboxes basically anywhere and attach to any socket

I plan to add a "use weapon hurtbox" if you want to use the weapon

Weapon has a base damage that the hurtboxes can multiply against, for example a third strike doing 1.5x damage

It also adds actors to an ignore list so a hurtbox can only hit an actor once

[proud salmon]

Yep

I do unique target per swing, etc. Combos that can have different damage values, crit chances, etc

[autumn pulsar]

I should probably upgrade it so it works off Hurtbox sets rather than individuals

[proud salmon]

then you add in replication and it gets even spicier 😄

[dapper escarp]

Hey, I've run into a slight problem. Idk if this is how it works but I'm using animation sharing for multiple npcs in a shooting game. But when I shoot them, I want to unregister the npc from the anim sharing manager so it can ragdoll. Is there a way to unregister the actor? I've been looking for hours. Any help would be appreciated, thx (:

[quiet remnant]

Does anyone know if find returns a value copy or ref ik in c++ it returns a ptr

[fiery swallow]

I'm almost positive it's a copy. I don't risk it either way in blueprints though, I always make sure to set it no matter what

[maiden wadi]

Circular pins are always copies.

[quiet remnant]

most times this for example is a ref

[maiden wadi]

That's not a ref though. It's a ref that you've turned into a copy.

[quiet remnant]

nope its a ref heres a test

[jade inlet]

I'm facing a problem right now and hope to get some help to solve it. I'm also an absolute beginner in UE and may not know or use all the correct terms and possibilities, so please forgive me if I've used some of them incorrectly and/or if my query and information is not specific enough to assist me with unerring solutions.
In this case, I would be grateful if you could let me know exactly what information you need in order to help me further.

In my current project I work with PCG and I use a rectangular spline component (BP-Actor) as a spawn actor for the PCG system. My knowledge is based on several videos I've watched about using and working with PCG, and as far as I can tell, they all work with the Actor BP construction script. At the moment I'm only using the construction script to define the area size of the spline component by variable(s), but I have noticed that every time I save and compile the Actor BP, this also causes the spline to change size and shape.

Now I would like to know if there is a way to prevent this?

[quiet remnant]

yea that's because the construction script runs on compile as for a fix you could try many things like
Use the get player pawn node if valid run the code on the construction script.
Make a blueprint function lib in c++ and make a func exposed to BP that returns the result of GIsPlayInEditorWorld call this function in bp is true run the code on the construction script.
Make a blueprint function library in C++ and make a func exposed to BP that takes in a world context object to get the world, and returns whether the world is a game world using World->IsGameWorld(). Call this function in BP, and if true, run the code on the construction script.

    static bool IsGameWorld(const UObject* WorldContextObject);```
```bool UWorldCheckerLibrary::IsGameWorld(const UObject* WorldContextObject)
{
    if (!WorldContextObject)
    {
        return false;
    }

    // Use GEngine to retrieve the world from the context object
    UWorld* World = GEngine->GetWorldFromContextObject(WorldContextObject, EGetWorldErrorMode::LogAndReturnNull);
    if (!World) return false;
    return World && World->IsGameWorld();
}```

[maiden wadi]

Ah. That's neat. But I'd probably still change that to a diamond pin. Macros act a bit different than normal functions. Usually if it's a circle, assume it's a copy. But yeah, Find from map is 100% a copy. It causes you to pull the entire struct out, modify it as a copy, and then readd it to the map.

[dusky cobalt]

So probably the most straightforward way would be to move that logic from Construction Script to Begin Play, unless it's something you need to see after you place the actor in the editor and not hit play yet. If it needs to be in construction script then I would listen to the other anserws happily.

[quiet remnant]

yea i always assume the same but just wanted to double check because of the case i just showed but i should change the pin icon so its more clear its a ref

[maiden wadi]

Sounds like you have a shifting seed somewhere which should be defined in this BP and passed into the PCG systems or whatever is randomizing the spline.

[dusky cobalt]

Also I think you should be able to have instances of this actor without it changing the size everytime you compile. Like place Actor in the World, and then go to it's details and set some variables (that the scrip uses) to be 100/200/300 whatever. These should not change when you compile. Which means you could have the same BP_Actor but with different, let's say sizes. Compiling the new logic will only affect the actors IF *you change they way you use variable *)

[tropic token]

UFUNCTION(BlueprintCallable, BlueprintPure)
ECOR_AffiliationType GetAffiliationToCharacter(ACOR_CharacterBase* Character) const;

Is there any way to make blueprint compilation fail if nothing is connected to Character pin?

[maiden wadi]

Semi sure you'd need a custom k2 node for that?

[tropic token]

Sounds kinda complicated, I was hoping to get away with some meta data on the Parameter :/

[maiden wadi]

I wonder if const ref would work? That throws errors for some things like arrays and structs I think.

Oh, you can't even compile a const ref pointer.

[tropic token]

it's nice, maybe I should use that then

oh, you mean in cpp?

[maiden wadi]

Wait, no I derped. Sec.

Nope. Doesn't work. You 'could' use a UPARAM(ref) UObject*& SomeRequiredObject... But it not being const just feels bad to me. :/

[tropic token]

Sometimes it just crashes the editor, because you simply forgot to connect pin :/ but it would be so bad to make additional checks in CPP code

[jade inlet]

@quiet remnant , @dusky cobalt & @maiden wadi
First of all, thanks for your replies and for your help!

Okay, I indeed forgot to mention additional things... sorry for that 😅 🙈

a) please provide me with solutions that only contain using BP nodes as I'm also not very skilled in or familiar with traditional coding.
b) I haven't set up anything in Event Graph yet, so my project doesn't (have to) do anything when I hit play at the moment.
c) I considered to use the spline as spawn actor for the PCG system to be able to set a boundary for the PCG points to spawn and to define the size but also the shape of this boundary either manually or automatically "on the fly" by changing variables via the details panel of the BP.

I guess there are a lot of possible and probably even better solutions to accomplish what I'm trying to do, but I'm very overwhelmed right now. I feel like a little kid who has access to a garage with tons of tools and materials to build a vehicle, but doesn't know how to connect everything together 😅

[maiden wadi]

Primary question is, does the spline change, or does the PCG spawning along the spline change?

[jade inlet]

Well both, the spline's shape and size are calculated within the construction script and whenever they change it also affects the PCG spawning inside the spline.

[maiden wadi]

Then start at what is affecting the spline. How is it being created in the construction script?

[jade inlet]

That's how I set it up

[maiden wadi]

Like what are you doing with the spline in the construction script that would cause it to change and not be the same just because it's ran again?

[jade inlet]

Okay, so my plan was to only have to define the area size for the spline and the calculation in the construction script then automatically defines the sizes for side a and side b. This also ensures that I get more variety in the shape of the rectangle and is probably also the source of the problem, although I don't want to do without it. Preferably I want to be able to randomize the shape by another variable or a button later on, but it shouldn't change whenever I compile the BP.

[maiden wadi]

You need some form of seed and or other driving variables then.

Compilation should be able to run the function and still get the same outcome in this case. So if you drive your randomizations off of a seed and stream or other variables you could change per instance, then it'll generate the same identical thing again.

[jade inlet]

But the changing shape issue is not the only problem I'm facing right now when using say the construction script workflow, so I'm wondering if there might be a better solution that I can use to get rid of all these issues.

[tame moat]

Hello Friends, I feel mad dumb right now because I know I've gotten around this in the past. but I've been working for the last 12 hours and just want to finish this feature before I go to bed. What I am trying to do is change the location of an actor that simulates physics. The actual implementation uses a short lerp via a timeline. On this test actor I replicated the issue even with disabling physics simulation I can't get the object to move. Is there some checkbox I am missing or is it a much more involved workaround? many thanks in advance!

[jade inlet]

Thanks, I'll give it a try!

[dusky cobalt]

use Set Actor Location instead of Set World Location of the component

Physics should not matter since you are teleporting the target, it might fall down or not depending on what you chose at the destination, but I think teleportation is not affected by the physics.

[tame moat]

Also doesn't work, exact same result

[dusky cobalt]

What does it mean it doesn't work?

Can you show where you put this actor in the world?

[tame moat]

sure 1 sec

[dusky cobalt]

also did you check ''teleport'' and don't plug default screne root to the target

leave it as self or plug self

[tame moat]

Pretty much what happens is it doesn't like the blueprint version of disabling simulate physics, but if I do it in the details editor it works...

[limpid knoll]

Stupid beginner question. How do/Can I remove those nodes or disable their creation?

[maiden wadi]

That is a #pcg-framework question. But generally speaking usually you can't. They're conversions for data types from one to another between functions.

[limpid knoll]

Okay, thanks 😄

[dusky cobalt]

Check Teleport on the node

also delete old bp from world compile and drag neww one

[snow halo]

Changing render scales fucks up the quality and it really blurs things out

how can I change font using SlateFontInfo if it doesn't have target?

without target it's as useful as nothing

might as well use it for decoration

[tame moat]

Unfortunately the same result of it not moving.

[little prism]

Hi,
I exposed a component object reference variable at spawn on my UserWidget but when I try to use it in "On Initialized" it's not available "Null value"... Is this correct behaviour?

[quiet remnant]

Run the engine under the debugger and set a breakpoint in the set actor location and check whys its not working and also check your log

talking about c++ btw

[craggy ferry]

Good afternoon everyone, hope I wrote in the right category, I'm new here.
I have a problem with a task to which I can not think of a solution: I need to somehow in Blueprint to create a logic in which I can send through UDP stream from the main camera of the character in my game.
As I understood - for this purpose I can use Render Target and somehow convert the data. I found plugins on GitHub that allow me to add UDP components and sockets to the character's BP. In the future I need to transmit telemetry and control input in addition to the video stream. But for now I want to understand if it is possible to set up such a stream?

[trim matrix]

Hello, hopefully right channel for this - need to fix this script to go through compil, any ideas?

LogValkyrieValidation: Error: Found disallowed object type /Script/NiagaraEditor.NiagaraHierarchyScriptCategory, Referenced by:Content/_ZZ_Imported_Packs/__AoeVFX/_GenericSource/NE/NMS_VortexVelocity.uasset (NiagaraScript), Plugin mount point:/DragonBattlegrounds.
UEFNValidation: Error: Found disallowed object type /Script/NiagaraEditor.NiagaraHierarchyScriptCategory, Referenced by:See below for asset list, Plugin mount point:/DragonBattlegrounds.
UEFNValidation: Error: /DragonBattlegrounds/_ZZ_Imported_Packs/__AoeVFX/_GenericSource/NE/NMS_VortexVelocity

[jade inlet]

I found a video where the creator shows something similar to what I'm trying to achieve, and there he says that adding the code to a custom event within the event graph instead of initialising it via the construction script would fix the issue. Well, it actually fixed that issue, but now I have another one and I don't know why 😅 🙈
Are you familiar with PCG and could you help me?

[plucky yacht]

Is there a problem with the event dispatcher binding its own event?

[tropic kite]

does anyone have recommendations on keeping a character grounded while walking?

[pulsar osprey]

gravity

[dawn gazelle]

No, but why would you do this? Event dispatchers are usually meant to facilitate communication from a source object to other objects that want to listen to the event being called so they can perform an action when the event is dispatched on the source object. You may as well just call the event directly if you're wanting something to happen within the same object.

[restive rose]

Hello everyone! If there is anyone who has worked with the Anim Dynamics node in ABP, can you tell me how to limit the movement of a bone? I tried Linear Axes, Angular Limits, Spring Constant. It began to dangle less, but if the character gains huge speed, the constraint still starts to bug and move away over large distances.

Thanks in advance

[tropic kite]

by just jacking up the default?

[inland walrus]

Any idea why my button goes large in width when I add an image to it?

[quiet forge]

I have a gamemode with Event BeginPlay and added a Print string to it, why am I not seeing this? The game mode is definitely being used + I am in "New Editor Window (PIE)"

Prints on tick do work

Begin Play does not even fire Breakpoints, why is that

Is it because my GameMode inherits from GameModeBase?

fixed it

I made a gamemodebase in c++ which didn't use super

[inland walrus]

I want to put this part of my widget in here, but when I do, it loses the top and bottom of the button, Any ideas?

[quiet forge]

this is what I meant so it was not a BP error

[quiet forge]

a) this is UI related, not BP
b) You should use something else instead of what you are trying to do. There are UI-list-elements that can add n elements to its list based on a template/preset widget that can contain data per element.

[tropic kite]

even at a very high number it still happens. The only solution I can think of immediately is making sure the edges are more rounded.

[agile loom]

Hey all.

I have an actor placed in the world. Within this actor I have an overlap trigger. When it's overlapped, I want a sequence to play. The sequence basically moves actor's camera around to show something off in the level.

Within this actor I create a level sequence, and then attempt to set the binding - but I can't bind my actor's CineCamera (component) to the AddBinding. Clearly it's asking for an actor, but really I want to bind my actor's cinecamera component to it. How is this done?

[maiden wadi]

You mean that you want to use the cinecamera off of a pawn, or?

[inland walrus]

how to reference widget in blueprint?

[agile loom]

Hey thanks for the response.

No the pawn has its own camera - I essentially want this actor (placed in the world) to move its own camera around itself. The camera should temporarily replace the player's camera (or at least viewpoint). This actor is placed multiple times throughout the map, so obviously this cinematic needs to occur at each one independently

[agile loom]

Depends where the widget is stored - normally if it's created by the hud or gameviewport client, access those pointers first and then access the member widget pointer, cast if need to

[deft copper]

Supposedly the new Enhanced Input System allows for using input events in your Game Instance BP class, but I can only get it to work from my Player Controller BP class. Any thoughts on what I may be missing to get it to work?

[faint pasture]

that seems.............iffy

[maiden wadi]

I'm unsure on that one, sorry. Normally the sequencer would just do shots. 🤔 I should really learn more cinematic stuff.

[maiden wadi]

I'm both curious why they would allow that, and more curious why anyone would want that?

[faint creek]

Hi everybody, are there alternative methods to program character's jump?
Somebody knows, please?

[deft copper]

My goal is to have a hotkey to switch my custom TextBP's DynamicMaterialInstance to flip a parameter in said material to switch from the color texture over to a debug checker pattern. The TextBP is listening for a specific event, which I had setup in the GameInstance. I guess I could do it in the player controller.

[dusky cobalt]

If there is a plugin that says supported engine version 5.1 - 5.4 it means that it's not guaranted it will work on 5.5 and I can still try to ''migrate'' it myself somehow into project?

[dusky cobalt]

All ''controling'' inputs should be in player controller basically.

[deft copper]

Anyone here using Dynamic Material Instances modify a scalar value and have the change take place over time, rather than instantly? I have included a tiny video file of what I am seeing. The scalar value change is from 0 to 1 which controls a Switch node in the underlying material, to switch from the texture to a checker board pattern.

[timber oar]

Hi gang I'm trying to make it so my player can walk on the inner walls of a tube, like a loop de loop, and I got it mostly working fine but the walkable angle of 90 is making them stop on the wall. Does anyone know a work around for this?

[inland walrus]

This should print every item in the players inventory right?

[final heath]

Hello! This is kind of both a programming and animation related question, and I'm probably not describing it particularly well, so I'll be happy to elaborate if need be.

Basically, I'm trying to make an attack for my sidescroller game functionally like a combination of something like Bayonetta's Afterburner Kick from Smash Bros and the 8-way dash from celeste. Basically, an advancing attack that can be angled in the 8 sidescroller directions that travels a fixed distance, aka it doesn't really carry momentum or factor in pre-existing momentum when starting the attack. As such I want to avoid something like Launch Character. I figured one way to do this would be through animation, using root motion and such, but I'd prefer to not have to create 8 different animations that each move in different directions, so I figured i could make one animation then rotate the mesh to allow the root motion to do its thing and move the character in the direction the mesh is facing, though that approach unfortunately only works on the left/right directions.

I guess I'm basically just looking for ideas/suggestions on how to accomplish something like this, I'm rather inexperienced with tying gameplay mechanics to animation so I'd really appreciate the help.

[timber oar]

Theoretically as long as there's string in that array

[inland walrus]

Thanks

[deft copper]

Turns out my Dynamic Material Instance scalar change was fine, it was TSR that was having the change look like it was happening over time.

[inland walrus]

I have this blueprint, it checks if the player already has an apple. if true it adds another apple, if false it adds a new line to the array called apple. Is that correct? If so how do I recognise if the player has 2 Apples?

[faint pasture]

both paths add a new string "Apple" to the end of the array

[inland walrus]

ChatGPT tells me I should change the player inventory from an array to a map, what do you think?

[faint pasture]

ChatGPT doesn't know shit

what do you want your inventory to be able to represent?

What should it look like to have 2 apples?

Because right now how that looks is that the array is: "Apple", "Apple"

[inland walrus]

I want it to count how many apples they've collected

[faint pasture]

Do you want 2 entries of "Apple" or do you want something like "Apple" : 2

[inland walrus]

"Apple" : 2

[faint pasture]

K so that can be a map of string to int

string is the thing, int is how many

[inland walrus]

Like this?

[faint pasture]

not add

you'll need to get the value and modify it

start with find, it'll give you the int if found, and let you handle not found

if not found, add with int 1

if found, increment the int for the key

[inland walrus]

Ah okay, so like this?

Then we don't need a branch right?

[faint pasture]

what do you do if not found

I don't know if the int would default to 0 and I certainly wouldn't rely on it

if not found, what do

[inland walrus]

Add a new item to the map

I'm going to link up all the variables etc once I know how/it works

[inland walrus]

Got it working, didn't need the branch

[winter plume]

is it normal/expected to have uproperty getters/setters of members of a c++ class so children are readily manipulable via BP or do yall prefer a more encapsulated approach and things that function as blueprints elements should remain black boxes

[celest oar]

im trying to use a tile view in a widget, but the values are not passing for some reason, i inherited from whatever it was that was need and passed the values like so

but when i make binds for those values in umg its like they dont exist

[lost hemlock]

Does anyone know why this says it wasn't successful?

it's nothing out of the ordinary

or anything to worry about

just wondering why do I have to see this shit every time

lol

[stone field]

it looks unusual. head over to #source-control

[final heath]

8 direction movement attack

[icy jacinth]

I'm trying to create a simple BP to allow a character to pick up a weapon -- instead of attaching to a socket, I just want the weapon to float next to the character. I'm trying to spawn it at the location of a scene component. On pickup, the weapon disappears from the ground but does not appear next to the character. Any thoughts on why?

[autumn pulsar]

Is your socket name valid?

[wild pumice]

I also have an inventory ui question. I have pickup items and a ui notification that comes up when an item is picked up. I have a render target to show the 3D model of the item that I attached to the Master item Parent Blueprint. In my scene now theres a ton of scene2d cameras for each item and my framerate got DESTROYED.
What would be the proper way to display the 3D model of an item in a ui notification? It also cant just be one Blueprint that updates it's static mesh(I have this currently and when you update the static mesh all notifications update the 3D model to the latest for all notifications on screen).

[dusky cobalt]

Guys, if I want to upgrade project to 5.5, should I install plugins to that version before I do or this project will have these plugins on it's own and then I can update them on top of it? Like do I install plugins(that the previous project was using) to the version 5.5 before upgrading any project?

[icy jacinth]

Hmm, I do have a named socket, but it's different from the scene component, so come to think of it, the socket shouldn't be necessary, right? Removing that input doesn't fix the issue though 🤔

[dusky cobalt]

Try to break these things in a small tasks. Write a recipe in words what needs to happen first, then try to program what needs to happen. You are first spawning actor with class Spawn Actor (doesn't tell much). Then you are d estroying actor (Current Weapon) where did we ''set'' what is current weapon? Pickup Location I guess it's plugged when event is triggered by overlap or line trace? Btw Adding +10 to Z vector will spawn weapon above your head not in front of u. Then you spawn new weapon at 0.0.0 location of the world. And then you attach actor to the socket. So hmm I would check first if it's even possible to attach whole actor to the component (yeah even if the node exists sometimes its... xd )

[celest oar]

Does removing an item from an array in BP auto resized that array?

or is it gonna have empty indexes?

[faint pasture]

The logical size gets resized, the memory doesn't necessarily go away every time.

If you have an array with 3 elements and remove one you have an array with 2 elements.

[mild pine]

Hey guys, I'm trying to improve my Hurricane spell, and I was thinking it would look better if I had the enemies entering it be sucked in and follow the direction of the wind, flying higher until they reach the top. What do you think would be the best way to do this, without simulating physics? Multiple scene components spread through the tornado and timelines lerping the actor's location to each individual component?

[faint pasture]

How are the enemies moving around normally?

[mild pine]

BT-driven MoveTo's. The Hurricane spell is doing SphereOverlapActor in order to begin sucking up enemies. I'm steering away from ragdoll physics in this aspect as it's a coop game and I believe it could get more complicated, although it would've probably looked the greatest in that fashion. I'll try doing the timeline setup with components with various rotations and locations, and I'll see if it looks anything close to decent unless you have any better suggestions 🙂 @faint pasture

[faint pasture]

I mean is it ACharacter?

using character movement component

[mild pine]

Oh yeah, it is

[faint pasture]

it depends on how rigidly they should be stuck in there etc

can a character get knocked OUT of a hurricane? Or in?

[mild pine]

The characters cannot get knocked out of it, but they can get knocked in

[eager thicket]

how do i access a widget's custom fuctions/events from a widget component?

is it even possible?

[dusky cobalt]

use Create Widget first, then set it as variable, and then you can make this Widget Component to also use that widget you ''created''

[tribal gazelle]

Is it not possible to convert a UE4 skeletal mesh to UE5? I can only seem to find "animation retargeting" not "skeletal mesh retargeting"

[celest oar]

thanks

[winter plume]

'bAutomaticallyRegisterInputOnConstruction' must be true in order to use Enhanced Input in the widget

getting this when trying to make a widget reactive to input events. anyone know what i might be doing wrong?

this is the blueprint in question

[warm idol]

My pickup system is not working when i try to pickup the item after i dropped it.

[autumn pulsar]

I'd do a breakpoint on the branch and then check the hit actor

Are you flipflopping between pick up and drop?

or are they seperate keys

[warm idol]

Ohm they are different keys, i do the pickup with E and the drop with G

Its working if i not use the simulate physics, but i want to use it bc of the drop function

I tried setting off the physics before the attach component but that not worked

[autumn pulsar]

try using trace for objects instead of channel

[warm idol]

I will try, thanks

[winter plume]

anyone have any input on my question mayhap? I can't get the events to trigger with this setup which doesn't make sense to me. do i need to relay the events from an actor or? idk

[fiery swallow]

Could I persuade you to not do that, because typically you don't want to do that

[dawn gazelle]

Widget components require you to use "Get User Widget" (can't recall the exact name of the node, but it's something like this) from the Widget Component reference, from there you'd cast that to your custom widget class and you can then access the functions and variables as neeeded.

[winter plume]

can you tell me how to implement an RTS selection box then because that's how i could think to do it

i don't understand how you make UI if you can't have it react to input actions

i want the user to be able to click and drag a box to select units

[winter plume]

should my player controller on the other hand then know about the widget and invoke data from that? relayed through the player controller which has the ui bindings set up

[fiery swallow]

Normally the rule of thumb is that the widget listens to actions that took place from the game, not the other way around

but you can always just do what you just described yeah

[winter plume]

how can the widget listen to actions from the game. i thought you were just trying to persuade me not to do that

[fiery swallow]

event dispatchers

alternatively, if you really want to override button presses in widgets, there are a number of functions you can override inside of the UMG

[winter plume]

can you elaborate please

[fiery swallow]

https://i.gyazo.com/ef8a186e5e0b644826d58ea039e3bdb0.png

[winter plume]

oh ok

[fiery swallow]

if you click the override button next to functions in the UMG, you'll find these

[winter plume]

so enhanced input is just explicitly not for widgets?

[fiery swallow]

Inputs in general aren't really "meant" to be used in widgets directly

[winter plume]

why is that? seems redundant to have like what, three input systems

[fiery swallow]

It's more of, there's an intended way to use stuff, and an unintended way

you can most likely find a way to get input actions to work in widgets in some way, but it'd be far from common

[winter plume]

ok so i'm trying to internalize this. so i can wire these events and basically have the widget "emit" the current selection window. would the player controller subscribe to an event emitted from the widget, or have the widget as a dependency and read from it on tick or what's the convention?

[fiery swallow]

you lost me there. when programming in unreal engine atleast, All your logic ideally happens outside of the widget, the widgets have one job, which is to display the information that is happening in the game, not dictate it

you can use a timer to get information, and then display it, or you can use event dispatchers or something else

but actual gameplay logic should happen outside widgets. if you follow that logic, there'd never be a need for a widget to receive input directly

[winter plume]

so for context my default hud is a viewport with a canvas panel with my widget in it, and a child of my widget is a border, which will basically be moved according to mouse down location, and stretched according to where the mouse currently is while down, and when the select completes, the player controller should be able to take that selection, find out all the selectable units in that rect and add their references to a group

i'm making a selection box. so something needs to drive the size of the border

[fiery swallow]

if there's gameplay logic specifically related to the UI, like selecting a button, then that's understandable.

once the button is selected or whatever then yeah it'd make sense to cast to the controller, or wherever the logic needs to be and etc

[winter plume]

i know you're not trying to but you're kind of talking in riddles to me. i'm trying to solve a problem ok?

i want to box select stuff in the world. and i want a visual representation of that selection happening

what should i be doing? because you've said in so many words that everything about my approach is wrong

[fiery swallow]

I thought we were on the topic about using input inside of a widget, what I'm saying is you don't directly drop input actions into widgets, you can override key events in the functions if you really need to.

[winter plume]

this is what i'm referring to

[fiery swallow]

I wasn't referring to anything else

[winter plume]

click + drag, and box is made

input drives it, but that input shouldn't be wired into the widget itself, so i would presume then i would put it on the playercontroller and reference the widget somehow but it seemed like you were saying that was wrong as well so i'm lost

[fiery swallow]

if input is required, then yes, you could put the input in the playercontroller, and when it's pressed you could call an event dispatcher to let the widget know it's time to do what you need it to do, or you can get a direct reference to the widget and tell it that way

are you familiar with the concepts I'm talking about?

[winter plume]

i'm familiar with event dispatchers in a general sense. i've written my own event dispatchers. i'm not familiar with navigating ue5

so i don't understand event dispatchers as a complete answer

[fiery swallow]

it's just one option of multiple

the easiest way is to just override the "On key down" event. I can show you an example

https://i.gyazo.com/b972372c77acf26f0ba3015a9d817871.png

[winter plume]

i see

lemme try a thing i appreciate it

[tribal gazelle]

I have a character with a body armour skeletal mesh and when I go up stairs the vest goes haywire moving heaps down then up, anyone know what could be the issue or how to fix it? Thanks.

Ok so taking the body armour out of the player mesh and then checking Use Bounds From Leader Pose fixed it up

[worn tartan]

Good evening. I am very new to blueprints. I have a basic UFO that I got to move around with the keyboard and a controller. I would like to tilt the UFO the appropriate direction when I turn or go forward and back. Ultimately it would be nice to have it tilt when I move the left thumbstick of the controller in any direction. It would also be nice to have the tilt directly correlated to how much you are pressing on the thumbstick. Right now I am using the Third Person Template and simply replaced the default character with my UFO skeletal mesh. I've attached my blueprint where I am failing miserably at getting the tilt to work. Any help or pointing to a tutorial would be amazing.

[warm idol]

“It’s not working, I tried with a delay, I just can’t figure out what the problem is. I think this should work like this, but never mind, I’ll either stick with Unity or create a completely different system, but since I just started, I have no idea how it should be done. This seemed like the best/easiest solution. Anyway, thanks for the help.

[maiden wadi]

Part of your issue is that you're detattching the component from it's own actor as well.

@warm idol When you make a component simulate physics, it'll detach from it's parent component. If you have a default scene root for example and then a static mesh attached to it. You first called Detach from actor which will detach the scene root from the held position. Then you tell the static mesh to detach from it's scene root.

Now when you pick the item back up, you are picking it up. You're picking up the scene root. The static mesh just isn't attached to it anymore so visually you're not seeing the same thing.

[vocal dust]

Hey guys -- new to unreal engine here! (On day 3). Question -- is it normal to hit a problem that makes you wanna kill yourself?

[autumn pulsar]

Yeah, part of it is sticking with it and banging your head against it until it makes sense

If you're completely new, you'll struggle a lot with seemingly simple stuff

[vocal dust]

Mind talking me through a problem I have spent like 10.5 hours on

[autumn pulsar]

I'd personally recommend starting out by learning Object Oriented Programming

[autumn pulsar]

I can give it a shot, but I can't guarantee I'll have a solution for it

but the important thing is to just realize it's going to take time to learn. It's a marathon not a sprint, and you may be punching above your current weight. I'll see if I can help though

[hoary forge]

I want to use the Lyra Starter Game Template in Unreal Engine. I have added a drone, and I want it to shoot at Lyra's enemies using AI any one help me ?

[pulsar osprey]

that's a very vague thing to get help on

[untold fossil]

Hello. I encountered a super weird engine bug/problem. Yesterday everything was perfectly fine. And this morning I launch my project and in one of my blueprints, the timeline curves are all gone. What the hell could have happened? Is this a known issue? This is extremely concerning tbh

[dark drum]

That's not entirely true. The input system has two modes, UI and Game. This has been how it's been handled for years and hasn't been updated since before the introduction of enhanced inputs. Simply put enhanced inputs only fire in game input mode and not UI. The reason why is because they haven't been setup to use the focus path. This of course could change in the future.

In commonUI, epic has added some simple support for using enhanced inputs in widgets but this is limited to specific scenarios but ultimately requires the input mode to be on game.

UI has always been intended to receive and handle inputs from the player but can be tricky when you have multiple different widgets all wanting to do something. Hence why they haven't moved from using the focus path system and returning if something is handled or unhandled to capture inputs and stop them going further down the focus path.

[fiery swallow]

So which part of what I said wasn't entirely true? I was referring to input actions. Are you saying that widgets were intended to have input action events?

no hostility intended if it comes off that way

[dark drum]

They work when the input mode is on 'game and UI'. It just doesn't honour the focus path. It not working when in UI mode is more down to epic not yet overhauling the UI input mode system, not that they never intended for them to not work. This change could come in the future if epic continues to work on CommonInput and CommonUI. Just a bigger thing to implement than they would have liked haha.

[dark drum]

No worries. 🙂 Sorry if I sound hostile. Pretty early for me haha.

Fun fact, it is still possible to half use enhanced inputs (simple press events) as you can check if there are any keys assigned to any input actions on an Input context mapping on the player. This can be nice if you want to be able to have the flexibility of changing the desired key from an ICM instead of hard coding in a widget.

[quiet field]

Hey, I have few questions and need help with my project. I created a turn in place system for manny. For the most part it works but I have few problems with it. Is anyone kind enough to help me understand my issue? I can record a small video as well for better understanding

It seems like most of the time it works but sometimes when rotating fast or more then 1 whole turn, it glitches out

[dark drum]

Just post the issue. If it's animation related though you might be better posting in #animation

[quiet field]

@dark drum the video attached to my question has the issue

When I do a turn it works as it should for the most part. But it glitches out with enough speed and enough rotation

[fiery swallow]

I get what you're saying, and I see where you're coming from. I did mention that there are ways to use the input system directly with widgets. But I don't believe it was intended, which is why is difficult enough as it is, and there's multiple methods to do it. I think it's something that is supported, with limits. I mean this in the way that you could code your entire game in level blueprints, but it's definitely not common, nor was it intended to be used that way. Or replacing all of our casts with interfaces, you can do it, but not intended nor should it be done. Hope that makes sense

[quiet field]

@dark drum I can attach pics of my blueprints

[dark drum]

They want it too but lots of issues they need to work out and does require using commonUI. (Still experimental stuff)

https://dev.epicgames.com/documentation/en-us/unreal-engine/using-commonui-with-enhnaced-input-in-unreal-engine?application_version=5.2

[devout oak]

So im trying to create a bp for a trap that in order to disarm it they need to be crouched rn im just working on the hud and im running into an issue with it removing one of the huds when they leave the collision box

[maiden wadi]

The kind of question that always makes me thoroughly enjoy GAS.

[dusky cobalt]

something that might help you is Get Actors in Selection Rectangle node, read about it and maybe find some tutorials

[winter plume]

Appreciate that. Im mot even there yet though. Im trying to make the selection rectangle visible and the only answer i seem to got was "this isnt the way to go about it"

[dusky cobalt]

check Draw Rect that is in HUD

[winter plume]

Lol that would be hilariously simple. Bases thank you

And if its the game modes default hud is ghere a way to access it easily from the playercontroller

[dusky cobalt]

yes, Get HUD inside player controller

[winter plume]

Sweet ill try this in the morning thanks so much

[dusky cobalt]

should be a lot of videos using these to make rectangle selection

[foggy spire]

how do i multiply something with pi in blueprints?

[lusty birch]

PI node..

[dusky cobalt]

What did t hey change to Enchanced Input System that in 5.5 I'm getting 0 as Action Value and in 5.4.2 I was getting -1 or 1 ?

wow.. they moved it t o triggered xD

[eager thicket]

does "get render target" auto-update the material? for instance, say a UI has a countdown, will that countdown project onto the material by itself?

[inland walrus]

Can anyone see anything wrong with this?

[frosty heron]

Hard ref in data table is wild

[inland walrus]

https://blueprintue.com/blueprint/jvg-6ak7/ Heres the code, I cant take it in one screenshot

My issue is for some reason itemID is only printing as Apple in the third person character, even though on item pick up, when you pick up the item, it adds Apple or Cherry etc depending on the instance editable

[frosty heron]

@inland walrus hard to debug without having the project at hand but you should be worried about having hard reference in a data table.

You will end up loading every mesh of the item in the game. Even when you don't need them all.

Imagine having 300 items in the game and loading all 300 items on them when you just need to display the one that you own.

Your players will run out of memory for no reason.

[inland walrus]

Where do I hard reference the datatable?

[frosty heron]

Your item mesh is a hard ref

Simply having the dt there will load every item mesh in the game

[inland walrus]

Alright I've removed it and done it a different way

[frosty heron]

Well the only other way is using soft reference

[frosty heron]

And loading them at will

Don't know what I'm looking at there

Hard to tell what's wrong without debugging and knowing the system

I suggest adding breakpoint and print string

See if you didn't get the result that you expected

And work your way from tbete

[inland walrus]

Yeah I already did the print strings for debug, it's setting the item ID's perfectly for the inventory system, but not for the change text

[frosty heron]

I mean you can see why it doesn't change your text if you check with the print string and break point

Literary you can see why the branch goes to true or false

[inland walrus]

yeah I realise the branch isn't plugged in, but it still doesn't work without the branch

[frosty heron]

And you can find out why something don't work simply by break point

Like what don't work?

The text doesn't change?

[inland walrus]

The text only changes to Apple for some reason

[frosty heron]

Print string

Break point

[inland walrus]

In this video you can see that it is setting the item id correctly when the item is picked up and added to the inventory

My theory on why it's not working is that they are set as instance editable on which item the player will pick up

[dusky cobalt]

First this is not printing name of item and it's literally first thing that is on this event? Or i'm blind?

[inland walrus]

Yeah that is only there to tell me what the player is interacting with

[dusky cobalt]

but on video you are interacting and it's not printing it? or you are not interacting?

[frosty heron]

You got something printing on tick, go there and figure out what you are printing and why it produce apple instead the text you expect.

[inland walrus]

I'm not interacting, I'm just hovering. I only want this to change from apple to item name, but they all say apple

[dusky cobalt]

In which part of code you are trying to set name/variable in the Widget ?

oh i see it's here?

[inland walrus]

yeah

Oh wait not there

here

[dusky cobalt]

go to Widget, create variable Interactable Item

expose it on spawn and connect it here

[inland walrus]

Alright I'll try that

[dusky cobalt]

then on Begin Play, just Set Text to that variable (in the widget)

[inland walrus]

smart

I'll try that

[dusky cobalt]

then we can debug later things, but my guess is you should also add break point to where you are Setting Interactable Item and check maybe it's only always giving Pick Up Item Reference 1 even if the item was 2 3 or 4

also for ''later'' this part should be probably event on Player Controller or Player State (but looks like u have inventory in player controller so there) , and there you have function/event Add Item/Remove Item, which you can call in future from anywhere and just tell it ''what'' it should add (self) instead of each thing having this lines of code.

[inland walrus]

It still thinks everything is an apple

[dusky cobalt]

okay, when are we setting up pick up item r eference?

[inland walrus]

in third person character

[dusky cobalt]

wait what

but u need to have reference of the current item that we interacted with

not with empty (default) class

[inland walrus]

That's here on interact

[dusky cobalt]

like when you interact, you need to get reference to tobject we interacted yes?

[inland walrus]

yeah it's in that image above ^

[dusky cobalt]

like: Click something > Get What we Clicked and send it further

are you using line trace or something like that?

[inland walrus]

The interact line trace is on tick, once it hits something that's interactable

[dusky cobalt]

okay here we go.. Interactable Actor set

where is it the Interactable Actor set? and how are you sending this reference (Interactable Actor) to this place:

[inland walrus]

Here is how we're getting the actor reference

[dusky cobalt]

but do you realize it's empty default class reference and NOT EXACT object you are looking at?

begin play runs once

line trace runs 24/7

[inland walrus]

I have a do once function

inside it

that checks if it's interactable, do once

if not interactable reset

So it should reset every time the player looks away from the interactable object

[dusky cobalt]

this is why it's not working

you set Interacted Actor, but don't set which item was picked up ever, the item that was picked up was set on start of game once and it's apple

[inland walrus]

We don't want to pick up the item

[dusky cobalt]

and whatever you will click on, it doesn't matter because the Pick Up Item Reference is always the same

[inland walrus]

We want to just change the text on which item the player is hovering over

The pick up works perfectly when adding items to inventory

[dusky cobalt]

but you are trying to set the widget name to the Picked Up Item

which is never changing 🙂

[inland walrus]

Ah I see, so should I create a new variable?

that sets item id

[dusky cobalt]

just try to swap Picked Up Item Reference with Interactable Actor

[inland walrus]

so confused 😅

I can't do that as I need the interacting actor to determine non items too, such as doors etc

Which it already does

[frosty heron]

At simple form, it can just be.

Hit actor -> implement interface? -> set interacted item name -> if widget exist, update the text to interacted item name variable.

[dusky cobalt]

i don't know how to say it clearier. You set Picked Up Item Reference ONCE at the start of t he game, and then anytime you** look at something **, it creates Widget, taking all the informations from Picked Up Item Reference and feeds it.

[inland walrus]

It's already setting picked up item reference once at the start of the game (begin play on third person character)

[dusky cobalt]

... 😄

which is why it's always apple, go figure it out

[inland walrus]

I feel like it's always apple because it only changes item id when you interact with it? Or am I wrong?

The item ID is instance editable

That has to be why it isn't working

[dusky cobalt]

you never change the Picked Up ITem reference

[frosty heron]

Not sure how it is relevant to instance editable

[inland walrus]

Do you mean here?

[frosty heron]

This is obvious mistake

You setting a reference to null and trying to change a property of null object

[inland walrus]

I only change it to null when the player is not looking at an interactable object

[frosty heron]

You need to understand reference first

What you are doing is obvious mistake

That validate get will always be invalid

Because you already null the ref

[dusky cobalt]

Don't get me wrong, but start listening to what we are saying instead of trying to .. convice us it's ok

just take time and read what we said is wrong

[inland walrus]

I really do appreciate the help and I'm not trying to convince you you're wrong but I don't know where you referring to with this reference I need to set, I thought it's already done

[inland walrus]

Where do I null the reference?

[dusky cobalt]

my advice: read 15 times what I said and try to really understand it, no point in me typing it again, its the same thing all time

[frosty heron]

The set before the get validate

[inland walrus]

Okay I've removed that

[frosty heron]

You are nulling the reference then trying to set a text of a null object.
Your validate get will never be valid.

[frosty heron]

But you need to understand why...

Or you will just stumble on another bug

You should understand reference at the concept level first.

[inland walrus]

What does setting a reference do? I thought it just creates it as a variable reference

[frosty heron]

Look up on material regarding object reference

[inland walrus]

Alright

[dusky cobalt]

Okay in other words. Delete where you set picked up item reference on begin play. It doesn't do anything really, in this context I think that you think that by doing this you create ''slot'' for the variable, meanwhile the slot is created when you add variable to blueprint. Then just by creating the same ''variable'' in other blueprint, doesn't automaticaly makes it 1:1 in other blueprint.

Variable is just a empty slot that can be filled with pointer reference (to exact thing). Now you when you hover over something you need to somehow pass that reference to this variable. It's basic things so if you are begginer just watch more videos how to set variables and how to access get/set references.

[inland walrus]

Ah okay, knowing that is very helpful so thank you for the fleshed out message, but when I don't have a set there I get accessed none

[frosty heron]

You really should see some material regarding references

Your last sentence still demonstarte that you have yet to understand what reference actually is

Look up some reference videos, and naturally you will know what instances are too.

Learning is better than shooting in the dark

And it's not that people don't want to help you, but there are already material out there regarding what you are missing.

And it's something that takes hand holding in discord so better to just watch established material covering the topic

[icy jacinth]

Thank you - I really need to invest in a rubber ducky. The solution was embarassingly simple in that I didn't have a mesh assigned to the actor that attached to the scene component 🤦‍♂️

[dark drum]

Think of an object based var as an empty envelope. When you set the reference to an object, you're putting a set of instructions (a map) inside the envelope for how to find the actual object in question. You can copy these instructions from one envelope to another or remove the instructions entirely.

When you use the ref, it gets out those instructions and follows them to the object. Once there it can get the relevant data or call the function specified.

If the envelope is empty or the object is being destoryed (if it's an actor) you'll get an access none message because there's no instructions that take it to the object.

[autumn pulsar]

I think a more apt description would be it’s an address on the envelope and you’re mailing instructions to that address

[inland walrus]

@dusky cobalt @frosty heron Hey guys, just an update, I managed to do it

[inland walrus]

Thanks for this, I will save it to my notes and look at it whenever I use it

[muted vigil]

I am using GASP, I want to turn my character to actor. I tried to use SetActorRotation and Add or Update Warp Target from Location and Rotation. but they didnt work

how can I turn my character

[dark drum]

This might not be the best place but does anyone have any idea what would cause all the meshes to not be visible in any map? Even creating a new map is empty. I've noticed that the sprites also arent visible but it does show one if select it from the outliner.

Edit: Fixed, I had set the near clip distance to a negative number. 😅

[floral carbon]

Yo. I have a sequence playing when the player character overlaps a hitbox. The sequence is just another character running from point A to B. I want that character to disappear at the end of the sequence. Currently it resets to its original position after the sequence. Easiest fix?

[frosty heron]

there is on Finished event you can hooked up on the sequencer.

You can get rid of the actor there but that aside, don't use level blueprint.

[frosty heron]

Don't set it to negative or absolute 0 🙂

some people sets it to 0 and that also produce bugs because well, diving by 0

I think mine is set to 0.001 but you can always just run the console command to test the value in real time. When you find the sweet spot, sets the one in the project settings.

[surreal peak]

There might also be settings on the Character in the Sequence to spawn it in, so it despawns again later.

[hoary summit]

Can anyone advise me on my inventory system? I currently have a save game plugin from the marketplace that saves items into an 'inventory' by key. I need to also load item data but this is unsupported by my save system. The developer of the plugin told me I wouldn't have to save that data as it can be done another way but I'm struggling to find a solution as to how to do that. I have an item data structure but not sure what to do with it.

When i pick up an item

[frosty heron]

no one can tell without owning the plugin

[floral carbon]

Can't figure this out. All I see is Event - Trigger on the sequence. Add that track then...?

[frosty heron]

and I encourage to actually learn how to save / load without using pluggin first

[frosty heron]

no, there should be OnFinished event from the sequencer. You bind that event before playing the sequencer and that OnFinished event will be called when the sequence is finished playing.

[hoary summit]

alright, thanks

[snow halo]

Im trying to pass the data to my selection widget

should i use interface here?

or cast it ?

note : the quick selection ui widget will almost always be on the screen

or if not on the screen then hidden

[frosty heron]

are they so different that the user widget can't share the same base class?

also if you don't want to load your entire item's thumbnaill don't use hard reference in data table

[snow halo]

theyre not

so i can use it?

not real difference i think

[frosty heron]

use what? I don't know the context

casting is free btw, it's the hard ref that gives you the memory foot print

[snow halo]

i can load it inside of wb_radial_menu

[frosty heron]

you just need to declare the class in cpp since blueprint class is an asset

[snow halo]

?

[frosty heron]

you load it when ever you want

normally when you want to use it

or before

you are the designer, your choice

[snow halo]

yep

[frosty heron]

interface is fine here if you can't use the same base class

[floral carbon]

yeah this isnt easy. thanks anyway ill figure some other way

[frosty heron]

Event On finished -> Destroy some actor

it's like a few nodes

[snow halo]

Would this be softer or interface is softer

[frosty heron]

I don't understand

[snow halo]

which one is better

[frosty heron]

the question doesn't make sense

[snow halo]

interface or soft cast

[frosty heron]

what is soft cast

if you need to communicate between objects that don't share the same base class, you can use interface

[snow halo]

so if I wanna pass all those variables by making exactly all those same variable types as interface inputs & have exactly the same outputs and then transfer them via output on to the other blueprint?

[frosty heron]

@floral carbon

[frosty heron]

you have to implement the function in every class that implement the interface

use that as you will

[tulip totem]

I'm trying to spawn some mesh on a spline, so the spline is renderable in ue5.4.4 and im using the blueprints from https://tiedtke.gumroad.com/l/splinetools

however its remembering the old drawing of the spline and not updated to the new height of the spline. if i move the spline around the mesh does update but its like a mix of the old spline position and new spline position.

why would this be happening? why isnt it just spawning on the spline.

[maiden wadi]

What function is this code in?

[broken wadi]

Why is it that sometimes static mesh components of a level placed blueprint don't appear at all in the details panel after selecting the BP in the level? I would like to apply some specific changes to a few components but they aren't available to modify. They are rendering.

[tulip totem]

Construction script of the actor

[maiden wadi]

Are these just placed in the BP of the instance? Initially that sounds like a component marked VisibleDefaultsOnly. But that seems super weird for a static mesh, and not possible for a Blueprint.

[snow halo]

like this?

[dark drum]

Yea, I know that now haha.

[maiden wadi]

My initial assumption would be that the function was not designed to clear out old meshes and recreate new ones in the correct places. But I'm not sure.

[broken wadi]

Blueprint has this component hierarchy:
Plane (root)

• Box collision A
  -- 4 static meshes

• Box collision B
  -- 8 static meshes

• Box collision C
  -- 5 static meshes (but only 3 show up in details panel but all 5 are rendering)

[maiden wadi]

All BP placed? Nothing from C++ parents?

[broken wadi]

yea all just bp

[maiden wadi]

Can you see their details panel in the BP?

[broken wadi]

I even disabled the construction script which was modifying some material instances

on the blueprint its fine everything is there

in the level I can see all the static meshes and can select them manually to move them but can't edit their properites

when i select one of the missing components it mimics a root level selection in the details panel

[maiden wadi]

And this happens even with new instances of it placed?

[broken wadi]

yea

[maiden wadi]

Oof.

🤷‍♂️ Beyond me. Usually this is a sign of bad UPROPERTY markers, or BP serialization, but your situation doesn't fit either. :/

[broken wadi]

could be something like that, this was one of the oldest blueprints i made using 5.0early access

im running 5.5.1 now

but ive made changes to it since then on various versions...yea i dunno its odd

[maiden wadi]

Could be worth a remake of at least the components if there aren't a ton of children. Even if there are, you could probably put two new components, make an editor utility to iterate the child BPs to set properties same as the old two. Then afterwards remove it from the parent after saving all of the children.

Or just do it by hand if there's not a lot. 🤷‍♂️

[broken wadi]

Just now I even tried to delete ALL blueprint nodes and functions, even the constructor, saved. Added new instance to the level and it still has the same issue. So weird.

[tulip totem]

i deleted all the construction script for it. compiled and saved. so all i had left was an actor and my spline.

re added all the code and it still spawns it in the wrong place 😦

if i drag a new actor into the scene and start drawing the spline again, it all works but that meansi need to redrawthe whole spline again 😄

[maiden wadi]

But I mean the code itself. It sounds like the code wasn't designed to update old meshes correctly or something when the construction script reruns.

[floral carbon]

nah bro

[broken wadi]

I made a workaround by adding some public variables and just modifying them with the constructor script.

[inland walrus]

Does anyone know why this might not work?

It should open widget upon complete but it doesn't

[maiden wadi]

Does it print the other thing?

[inland walrus]

no it doesn't do anything

[maiden wadi]

My initial assumption is that that is in some other actor?

If yes, did you enable input on it?

[inland walrus]

I'm not sure

[maiden wadi]

This code though. What actor is it in? If it's in that thing you just went up to, and you didn't enable input on it before pressing the key, it can't accept input.

[inland walrus]

it is, Where would I enable input?

oh my b

Found it

thanks mate

[maiden wadi]

Depends. Could do it on an overlap and disable on end overlap.

But realistically this isn't a good path for interaction. Bug prone, not scalable. Even your widget is making a bad assumption right now that isn't reading the real value if your interaction timing. You have no ability to affect the interaction time per object either, like making one thing take 2 seconds, and other take ten.

You'd have an easier time placing a component on things that can be interacted with and calling a simple start and stop interaction. The actor being interacted with could bind functions to the component's started/completed event dispatchers. Then your interact code simply line traces and starts interaction with an object and stops it on the same cached object when releasing. You can do it without casting by simply getting the component from the actor pointer in the trace results.

[languid hemlock]

Is this possible with blueprint?
I want one variable to follow the value of another variable. I think this is possible with pointers in C++. Is there a way to do this for Blueprint?

I think its doable with UObjects, but I need this variable to be replicated...

[olive yarrow]

why in the omnissiahs name does my game freeze if i let my mouse leave the screen while dragging a slider widget?
I have it set to lock the mouse, so maybe saying leave isn't correct - hits the edge of the screen?

[snow halo]

Hi, I have this function every time I add an item to the inventory, im expected to pass those on to the other side, but it's just like one of those horror movie scenes where the actor picks up the phone call and nobody is talking, nothing is being received on to the other side, and it looks like all those inputs on the other side are empty and look like they still need to be fed data

empty hungry variables

[dusky cobalt]

Can you show Pass Info function?

also what do you need to happen, in either way you always need to provide item id first almost to get ''info''

[dusky cobalt]

other way is to maybe go with interface event like Get Info, and there you plug all the variables, then you just call Get Info and you can access every variable you plugged inside of the actor with interface (you still need target though to call this interface event to that thing that is holding this data and has this interface though)

[hexed oasis]

Just a quick sanity check, if I need a custom component that generate some data then spawn some particles to visualize the data then I want an actor component right?
and the particle system should spawn dynamically then attached to the parent actor correct?

[muted halo]

Hi there, would anyone know how I can have an event triggered when a certain object becomes visible in frame? For example lets say a pylon enters the screen the player is using how can I just trigger a print string saying "Pylon is in view". Thanks everyone!

[frosty heron]

Not in blueprint, you are referring to reference which is just an alias of another variable.

On the contrary, what you are doing in your blueprint there is declaring 2 variables, each occupying different space in memory.

[dusky cobalt]

Yeah, so this needs to be on the object which you want to extract the data from, but you cannot do any input. Inside the object you just plug variables, these will get passed when you call that event from anywhere with reference to this object.

[languid hemlock]

This is bad to hear. I have a very crowded string array and I want to select a random string once and reflect it to the widget. When the value of the selected string in the Array changes, I want it to change in the widget. I cant save array index of string because elements are swapping index often. Not sure if there is a proper way to do this in blueprint

[frosty heron]

What is there to save?

Cache the random string or set a variable. Widget simply read the variable.

[dusky cobalt]

Why you need array index? Just get another thing from array as you did it first time? Like
Update Widget > Get Random from Array > Update Widget

call this event anytime you want new thing from array and when it changes? or it needs to be the thing that is in the same index as the one before? i dont get it 😄

[dusky cobalt]

check Was Recently Rendered node maybe it's gonna fit your game, is it topdown, 3rd person view?

[languid hemlock]

Nevermind. I found the solution while writing the all problem. 'Rubber duck debugging' works 😃

[quiet field]

Anyone can help me with the issue I'm facing with my turn in place logic? Here's a video of the glitch. It seems to be working for the most part, but with enough speed and Yaw degrees it breaks sometimes. The first glitch happens around 25-27 seconds into the video

[idle crescent]

Can I get the instance hit by a raytrace of an instanced static mesH?

[spark steppe]

iirc the index is in the hit result?!

Hit Item probably?!

[idle crescent]

Is it? It just says

[dark drum]

Yea, it's the index of the hit instance in terms of ISM and HISM.

[idle crescent]

Huh. I will need to test but that's great, thanks

[muted halo]

its first person. In my case its actually flying a drone around with the camera in scene and when x object comes in frame I want to output a .txt file but for now even a print string works

[inland walrus]

Can someone please help me figure out why this is opening multiple widgets and how to fix it

[winter plume]

am i tripping or should this work? RTSPlayercontroller is added to the default game mode and the default game mode is loaded into the sene but i'm not seeing any logs when i click. Also the input context mappin containing these actions is set

[frosty heron]

Set where?

You will need to show more than this pic

Check your world settings as well, make sure it's not overriden unintentionally.

[inland walrus]

bump

[winter plume]

i only have default world settings right now afaik

what other pics would you like to see

[frosty heron]

Post the world settings of the level you are testing

Also show where the imc is binded

[inland walrus]

Do you need to enable input?

[faint pasture]

why wouldn't it?

[winter plume]

i don't know what this means. i need input for my game yes lol

[celest acorn]

still pretty new to bp, I'm trying to make a sphere collision spawn and apply damage to any actor within its radius (like an exploding barrel would), but when there is no actor in the radius, it stays there until there is, i want it to destroy the collision so that when i pass through i dont get damaged by nothing if you understand me, I know this is due to the on begin overlap but I don't know how to fix it lol. i have never made anything like this so im very confused lol.

[faint pasture]

Also, why are you only spawning a widget if the current widget is valid?

[frosty heron]

That's a controller, input already enabled by default

[inland walrus]

I used chat gpt for this as I always have this issue when making blueprints and I'm not sure why or how to fix

[winter plume]

it might not be binded now that i think about it. where would i do that?

[frosty heron]

Your game mode settings. Set them correctly.
Check if everything in order when you expand selected game mode

[faint pasture]

don't do that

learn how to do things

[inland walrus]

xD I do know what I'm doing roughly, but I don't why this issue occurs or what the counter is for it so I can implement it in my future code

[frosty heron]

Single player?

[winter plume]

right now it's 0 players i'm trying to address that first

[faint pasture]

First off, why do you have 2 places that spawn the widget?

[frosty heron]

Are you doing single or multi? It matters

[inland walrus]

Chatgpt👀

[winter plume]

i'm not sure where i'm supopsed to set the input mapping context in the game mode

[frosty heron]

Check the default third person template. It works for single player

[faint pasture]

Just start with the earliest bit of that code that you understand and go from there. No more copying from ChatGPT, you can ask questions, but implement all code yourself.

[winter plume]

check it for what

[inland walrus]

I have redone it multiple times in my own way but I can't figure out how to counter it opening all blueprint widgets

[faint pasture]

WHEN do you want to show and unshow the widget?

[frosty heron]

Check it to see how to setup enhanced input

[winter plume]

check it where? if i knew where to look i wouldn't be stuck lol

[frosty heron]

In the template you will find it in the character blueprint

Probably at begin play

[inland walrus]

I want to show the widget when the players interact hold completes, I don't need to remove it as I have widget close buttons for that

[winter plume]

will it show an enhanced input action reference wired into a comand? because that won't help me

[inland walrus]

but it's opening all widgets rather than the instance editable one

[frosty heron]

Well you haven't show the binding part, so I can only assumed that it's missing

If you already done so just post the pic

For enhanced input to work you need to add imc at some point

[winter plume]

like this?

i was told to set it in the game mode but i still cannot see where to set it in the game mode and nobody answered that

[frosty heron]

No. You have 2 options here.

See the full example in third person template and look into the character blueprint

Or read the epic documentation on how to setup enhanced input.

Where you set it is project dependend

@winter plume https://dev.epicgames.com/documentation/en-us/unreal-engine/enhanced-input-in-unreal-engine
You haven't show this bit

have a read through the doc

[inland walrus]

https://tenor.com/view/so-tired-awww-cute-exhausted-gif-13603339

[celest acorn]

may have got lost during the help with the other question:)

[winter plume]

yeah nobody suggested that bit. figured i out

[frosty heron]

reading doc > praying someone answered every single detail you don't know

[faint pasture]

Can you reiterate what the actual problem is?

you want the barrel to explode...... when?

[celest acorn]

so the barrel explodes fine, the sphere collision that causes damage, spawns fine, the issue im having is, that if there is nothing overlapping the sphere, it wont activate or destroy, and i dont want there to be a random sphere that can damage an actor like a minute later because thats not very realistic, i only want damage to be caused from when the barrel explodes. So if there is nothing overlapping it should destroy, if there is, it should apply damage and then destroy once applied.

[faint pasture]

why are you spawning a thing to cause damage?

that's a bit silly, you can do it all in the barrel like:

OnExplodeEvent -> get overlapping actors -> damage them -> delete self

[celest acorn]

because i want it to be able to activate other barrels to explode, sort of like a chain reaction

[faint pasture]

why wouldn't that be possible?

[celest acorn]

i mean i dont know, im still very new to bp, this was the way i assumed it worked

so this is my barrel bp

[faint pasture]

Here's your barrel:
BarrelMesh
OverlapSphere

Barrel.TakeDamage -> update hp -> if low enough -> Explode
Barrel.Explode -> get overlapping actors -> damage them -> delete self

[faint pasture]

you don't need to spawn a 2nd actor to do the explosion, just do it there

[celest acorn]

okay i understand that

[faint pasture]

just have a sphere, and get its overlapping actors, and damage them

[celest acorn]

okay i understand ill give it a shot thank you

[faint pasture]

you don't even need a sphere collider, you can just do a sphere trace

[inland walrus]

Adriel did you have any ideas regarding my issue?

[celest acorn]

im familiar with collisions so ill give that a try first, thank you

[faint pasture]

what do you mean by "all blueprint widgets"? The code you showed just spawns one and adds it to viewport

unless you've enabled input on like 30 things so that code is technically running on 30 different actors

[frosty heron]

🙅‍♂️ try to contain your inputs in your controller or character.

[faint pasture]

WHEN does input get enabled on these actors

yeah just handle your input in the pawn probably

[frosty heron]

why does pressing a button suddenly spawn a widget on every single item in the world

[inland walrus]

I don't think it does

[faint pasture]

cuz ChatGPT

[inland walrus]

xD I removed the chat gpt stuff

[faint pasture]

then how does any of your input event code work if input isn't enabled?

just put inputs in your pawn until you're comfy with how it works

[inland walrus]

Like this?

[faint pasture]

yeah don't have that in your interactable

[inland walrus]

Oh

[faint pasture]

you already have this

that runs when the thing starts getting interacted with right?

[inland walrus]

I don't think this is set up properly, it's only used here

[faint pasture]

that looks fine

your pawn tells InteractingActor that its starting to get interacted with

that's when you should show UI

what you had was that every actor that could ever care would trigger its ui when that key was pressed, NO MATTER WHAT

[inland walrus]

Ah okay so like this instead?

[faint pasture]

sure that's better

who's the owning player though?

[inland walrus]

?

[faint pasture]

for a quick and dirty prototype you can just get player 0 but eventually you want to pass over who's doing the interacting

so the thing being fiddled with knows WHO is messing with it, for reasons like checking if they have a key, or killing them

[inland walrus]

Ah, get player controller doesn't work I don't think

[faint pasture]

This should technically work, it's just gross and will fail as soon as you have more than one player around

if it's not doing anything, you need to debug why it's not getting called

[inland walrus]

lool good thing it's a single player game xD

[inland walrus]

Even this doesn't work

[faint pasture]

then the problem is before this

[frosty heron]

following up on our previous encounter, please just look at material on references and instance

[faint pasture]

go all the way back to the input in the pawn or controller that kicks all this off

[faint pasture]

does this work

if not, how are you setting InteractingActor?

[inland walrus]

The only thing I can think of is that it could be the interact system, the interact function works but the hold doesn't seem to

[inland walrus]

Basic interact works, but the hold doesn't

[faint pasture]

what part doesn't?

doesn't fire or doesn't get past the validated get

[inland walrus]

Could it be that I have to inputs with the same key? but one for hold and one for normal/press

[faint pasture]

get it to print Hold on hold and Press on press first

just directly off the input events

[inland walrus]

Does this help?

[faint pasture]

WHEN do you want the UI to show?

[twilit mantle]

hello there, does anyone know why the animation of my character does not move when using the simple move to node?

[inland walrus]

In this video, the UI is showing at the right time

[inland walrus]

Just not the right amount of UI

[faint pasture]

Print InteractingActor here

I bet that's not getting set correctly

[inland walrus]

Nothings printing

[inland walrus]

Think you might be on to something

[snow halo]

can I set slate brush without tick bindings in Widget Blueprints? Tick bindings = 👎

I only wanna update or tick once

but somehow its impossible to SET slate brush w/out bind ⛔ on widget buttons 🖱️

[left flint]

hi, all! very new to Unreal. trying to wrap my head around blueprints. I followed a tutorial that covered things like applying damage to a character and making it so hit actors can ragdoll the player character. I wanted to try to apply what I learned to do a few simple things on my own. First off, i wanted to make it so when the hit actor launches the player, it also applies damage. I was able to get this to work by subtracting health when the hit happened. but the damage number doesn't pop up when i do so. makes me think subtracting health ≠ damage are far as the code is concerned. I tried using the apply damage node but it does seem to work. any tips on what I'm doing wrong?

[inland walrus]

It was incredibly simple

[dusky cobalt]

I have AC_UnitProductionManager, where I have panel with widgets Produce Unit, which are all units player can produce. When building is constructed or destroyed I need to call to the Manager and update all buttons (check player buildings, if any unit requires it). Question is where should be binding properly done?

Should I bind On Events inside the objects that should communicate info up or when I spawn the building (in the building placement manager)? my guess would be to do it on begin play from inside object (building, and other event in constructable component). Would it be correct?

[dusky cobalt]

That is correct way to substract health, probably something with your hit by hit actor function is off. But first try to set this.
Also remember you can add break points on the nodes and then T10 to see the flow and which data in nodes is gettinf filled.

[left flint]

like this? or should i disconnect this link? Tested it and the damage still isn't applying. also im not sure what you mean by T10?

[dusky cobalt]

Sorry, I mean F10 key, yeah first screen is ok, you can also connect from Set to the hit by hit.

Must be something wrong with Hit By Hit I guess?

try to print before Hit By Hit node, name of the 3rd person character

just swap player state to your character

and add it before hit by hit

[left flint]

i tried this and the text appears.

[dusky cobalt]

ok, but connect in string to the player character

[left flint]

so now when he gets hit his name appears

should i maybe switch things around and try to apply damage before the hit event?

[dusky cobalt]

what does hit by hit does exactly

btw ur damage is set to 0 now

also event any damage is on your 3rd person character, correct?

[left flint]

omg im dumb

it works now lol

but i gotta figure out at which step i fixed this...

[left flint]

correct

[dusky cobalt]

you had wrong variable for the target and you didnt set it

[left flint]

and hit by hit makes the character get launched, takes away player movement then after a delay respawns him and restores movement

[left flint]

so it was setting the third person character variable between the cast and the hit actor that fixed it. thank you so much! I still dont quite understand getting and setting.

but im sure ill get it. this is still way easier than when i was trying to learn C#

[dusky cobalt]

variables are like empty buckets, you can put water into them (values and references to things), by setting up variable you fill it up with water (data, value), then you can drag anywhere you want that bucket and pour it up at something (doesn't mean its empty yet) when you set the variable to nothing, it gets empty

learn how to use break points, its huge for this editor

you can see step by step what is your code doing

[left flint]

thank you! that makes more sense. how do i use break points exactly?

[winter plume]

so event dispatchers are a slight misnomer i assume? like any event dispatcher is also in theory an event that you can bind to

[dusky cobalt]

right click you add break points, when u run game and u do something and this node is triggered it will stop and take you here, you can sthen see all the nodes having values and you can check every value if its set, if its valid, what numbers got set etc. then u can click F10 and see what is happening after step by step

[winter plume]

oh nvm i see when yo udrag it in there's an option to use it as an event and then it generates one in the event graph

[left flint]

oh, nice! so if something isnt working this would be a method you could use to figure out where in the chain your runing into issues?

[dusky cobalt]

exactly

[left flint]

awesome! thanks

so an issue i have now is the character keeps taking damage after getting knocked away. this was solved in the tutorial in the hit by hit actor event for the actual physics. im wondering if i shouldn't just put the add damage into that event instead of where i have it. but it wouldnt let me call my character as a variable inside my characters blueprint. or if so, idk how to exactly

i feel like the overall issue is that when the character gets launched, his collision capsule is left where he was. so it just keeps getting hit... how would i go about making the collision capsule launch with the mesh?

this is what the event currently looks like

[old cypress]

Is there a way to make a blueprint function not overridable by derived blueprint classes and be only implementable in parent blueprint class (not in C++)?

[fiery swallow]

mark the function as private

https://i.gyazo.com/87fdd0a087127b6ffa7783347ab3fbcb.png

[old cypress]

yeah, but that will make it invisible for child classes

[fiery swallow]

that's so true. You want to be able to call the function, but not be able to override it. I don't believe that's possible.

also, if you care to share, why would you ever need to do that?

[tropic token]

guys, is there any way to limit selection of the montages and animation sequences in data asset's property with particular skeleton?

[ripe fiber]

Can someone help me to a guide to "Push and Pull Objects in Topdown" tutorial ?

[upper badger]

I'm trying to implement something simple (imo) - click a cube, print a thing. I have mouse events enabled in the controller class, I have the controller class in the game mode, and I have the game mode in the world settings. I have a UI in the game but I disabled that for now. I tried both onClicked on the cube and I also tried adding a box collision but still nothing. What else should I check?

[maiden wadi]

Double check that the box collision on the cube actor blocks the same trace channel as is specified in your player controller class near the clicked settings you enabled.

[upper badger]

yep, it does. default click trace on controller is visibility and i set the cube to block all

[wispy kayak]

Hi what to change for this? 5.5 is deprecated.

[dark drum]

If Epic deprecate something they normally provide a message advising what to use instead. (if there is a replacement)

[ruby ivy]

Hello, is it possible to store the contents of array elements as an integer? For example, if index 0 is 1 and index 1 is 0, how can I get the output as 01?

[frosty heron]

that's pretty random, what do you actually want? The index or the value?

[ruby ivy]

i need values only

[frosty heron]

wdym by storing content of array element as integer?

just have the array be the type that you need.

structs if you need multiple fields

[ruby ivy]

I want to write the values of the elements inside the array to an integer like this: 010101010, where the first element is 0 and the second is 1

[frosty heron]

what is your array?

an array of int?

[ruby ivy]

yep

[frosty heron]

Your Array
0 -> 1
1 -> 0
2 -> 1
3 -> 1
4 -> 0

and you want to store them as a data type that represents 10110?

[ruby ivy]

yep

[frosty heron]

loop over your array and convert them to string

append on each iteration

what's the actual application though

[ruby ivy]

If I save to a string with a loop, wouldn’t it be just one result? Doesn’t it overwrite the value every loop

[frosty heron]

you append the string on each iteration

so with the value above, your string will be 10110

[ruby ivy]

okey i ll try it thanks

[ruby ivy]

I try like this and not working what is my mistake

[frosty heron]

this is for quiz? I don't see why you need to have anything other than the struct

but in any case

also you probably want to set RandomF to be empty before the loop

[ruby ivy]

this is for keypad i don't know how can i use structs and it proably change whole system

[frosty heron]

I don't see why do you need to do what ever you want to do now. An array of int is probably enough to represent entered key

[ruby ivy]

yes one array represent key (0or1) and one array is answer array system works without problem but i need answer array like this for read this string in paper etc. for player can found solution

[frosty heron]

Yeah that make sense

to check answers or the keys an array of ints is sufficient but if you need to display them to the user then you will need to convert them to txt or string.

[ruby ivy]

I got a result like this array is 9 elements

[frosty heron]

Read what I said about making your string empty before the for loop

also, I don't know the code before what you posted

you might be running it more than you need

[ruby ivy]

okey i fix that

[frosty heron]

this function to convert answer to string should be self contained

[ruby ivy]

thanks thats all works

[fair hatch]

Having an issue setting up the blueprint to where my turret will despawn after a few seconds instead of just bombarding my scene with turrets.

Anyone know how to fix that?

[frosty heron]

not without seeing any code

you should check your Spawn collision rules too. Maybe you set to despawn if overlapped with an existing object in the world.

[fair hatch]

There's also that error warning. Still pretty confused on it.

[frosty heron]

the node is not even connected

[fair hatch]

To? Still learning all of this XD so I tend to get lost at times

[dusky cobalt]

if it's not conectect to execution pins it's not gonna run which means it will not give any value

these are beyond basic things

look up some tutorials about unreal engine flow of things

[fair hatch]

And I am still a beginner XD

I take notes and keep trying though, even if they are beyond basic things

[frosty heron]

we are not bashing or critisizing though, just giving info why you don't get expected result

[dusky cobalt]

you need to connect this, so it actualy goes trough and give any value to the ''orange'' line

[fair hatch]

it compiled thanks. This will ensure the turret despawns after some seconds?

[frosty heron]

no, nothing in this code destroy the actor.

you destroy actor via destroy actor node

[fair hatch]

And I have to put that at the end of Spawn actor?

[frosty heron]

you can add a life time inside the Bp Turret

[dusky cobalt]

good thing to do is to get to know your tools before you start using them, but don't be discouraged to ask questions just be prepared to accept feedback 😄 if we give you solution you skip part of learning and getting to know things and how they ''really'' work 🙂

[frosty heron]

Go to your BP turrent -> Class Defaults.
Look for field called Initial Life Span

set the duration as you wish.

Line trace End is very odd, that is a mistake if your intention is to draw a line between the actor and -150 below the target actor.

[fair hatch]

Yea, I put it normally, but it was way above the actor

So I had to figure out what number was good to make sure it was on the floor

[winged ember]

try again，again，again

[frosty heron]

you shoot far enough that the line hits the floor. Then you use the impact location as the spawning point.

[ruby ivy]

How can I make spawn four actors randomly in eight different locations?

[fair hatch]

I know about that, I tend to rewatch things over and take notes for this reason.

[acoustic vine]

Hello everyone, I have a question on Unreal Engine. The problem I encountered is as follows. I am making a note-taking mechanism, if the character's velocity is 0, it takes notes without any problems. Note interaction is taken with line traces, but there is a problem. If the player and the mouse cursor are positioned somewhere on the side of the note and the widget is opened, the note does not close again. How can I prevent this? I am open to suggestions