blueprint

[warped juniper]

The easiest would be for the bp spawning the Actor in question to store it into a variable. If not, there should be some ways to go around it...
For example you can make whatever that spawns the ball send a reference to it via some form of BP communication to another actor.

[copper chasm]

Look into Blueprint Interfaces or an Event Dispatcher for the act of destroying the ball maybe?

[autumn pulsar]

does unrotate vector assume the vector is a normalized direction?

seems like it does

[autumn pulsar]

Can I make a montage continually play until I tell it to stop?

[static sequoia]

How come when this tutorial sets hud variable it actually works but in mine it doesn't. it cant get any widgets from inside it

[high iris]

Is there a joyful way of moving a set of events from one graph to another in my blueprints?

I'm asked what I want to do about those events I'm porting and I either say "do nothing", in which case the bp doesn't compile, or I say create functions, in which case I now have to delete those empty functions and then it compiles.

What am I doing wrong?

[undone bluff]

what's your issue

[static sequoia]

wait it wasnt working before but now it is

[undone bluff]

you are copying function calls, you either do nothing and work out what to do with them yourself, or you have the engine create functions with the same name

if you want to move the functions then copy them first

[static sequoia]

I set the widget I was trying to get inside it to is variable and now it pops up, why does his have a symbol?

[undone bluff]

hell if I know

but it's normal that it doesn't

just unreal engine things

[static sequoia]

maybe its a different version of ue5 or something. weird

[undone bluff]

that is probably it

there were several changes to icons over the versions, it's pretty confusing

[static sequoia]

in the turorials version widgets are checked on "Is Variable" as default too. But now they arent. Strange...

[gentle urchin]

You do that explicitly

Encapsulation is something you should consider tho. Tutorials rarely handle that well, if even at all

[static sequoia]

what do you mean by encapsulation

[gentle urchin]

I.e. classes being responsible for their own shit

[undone bluff]

just tick the loop checkbox?

[gentle urchin]

Not manipulated by a third class (atleast not without intentz through a public function/event)

[undone bluff]

just make your whole game in your character subclass

bestest practices

[autumn pulsar]

I needed to find it in the montage, it was hidden

[sour island]

i need help with bp key to open the door, so my bp_door its fine open and close, my problem is when i take the key goes to inventory now when i want to open the door still closed how to tell him check the inventory to open the door with the key,
I can do it easly without inventory but i need to do that on inventory, my question is how can specifly tell him about that item?

[high iris]

What is a reason why Reset Level might not return some of the actors to their original position? I have an Actor with a sphere mesh inside of it on my map which is located in a certain position of the map, and when I call Reset Level on the server for some reason everything but that actor returns back to its place.

I'm reading the documentation for the node and it seems like everything should be in theory going back to its original location on the map. What am I missing?

[tall plinth]

i dont know if i already clarified... but literally...... i had to unplug save replug save my opening sequence player..... ??? not sure why that fixed it but it did.

[empty hare]

Is there a way i can stream something like a uasset into a map? Im trying to mod a game that has poles you can slide down as well as ziplines, I have managed to replicate the ziplines with help but i cant work the poles out. If theres not a way to stream it into my map so i can use the poles is there a way i can see the data of the file so i can replicate them for myself?

[fading sentinel]

👋 Hey I'm experiencing an issue with updating my character's position at the end of an animation montage. The setup involves using a socket's location to update the character's position in the Character Blueprint when an AnimNotify is triggered. However, after the animation montage finishes playing, the character snaps back to its previous location, undoing the position update. Here’s a breakdown of the issue and what I've done so far:

Current Setup:
Animation Blueprint:

AnimNotify called AnimNotify_UpdatePosition is placed at the end of the montage.
This triggers a custom event in the Character Blueprint that updates the character’s location.
Character Blueprint:

The custom event triggered by AnimNotify_UpdatePosition retrieves the socket location (CameraSocket) and uses it to set the character's position using Set Actor Location.
Steps Taken:
Root Motion Handling:

I ensured that root motion is disabled for the relevant animations in the montage.
I also set the root motion mode to "Ignore Root Motion" in the Animation Blueprint's settings.
Despite these changes, the character still reverts to its original location after the montage finishes playing.
Montage Timing:

I moved the AnimNotify_UpdatePosition to different points in the montage timeline.
When placed in the middle of the montage, the character's position updated correctly for a few frames but still reverted back once the montage finished.
Possible Remaining Issues:
Animation Blueprint Overrides:

There might be something in the Animation Blueprint, such as a state machine transition, that is resetting the character's position after the montage ends.
Manual Reset in Blueprint Logic:

There could be some logic elsewhere in the Character Blueprint that is resetting the character's location after the montage finishes playing. I've tried searching for any Set Actor Location nodes or similar logic, but haven’t identified anything definitive yet.

[neon ivy]

yo what theme is this

thats fire

[undone bluff]

crystal nodes

[neon ivy]

thanks g

[fading sentinel]

https://drive.google.com/file/d/1Velds1mBp5PULI5nTgX6Frcb9-4Np2sX/view?usp=sharing

guys i really need some help on this

[raw sleet]

Hello! I have a problem. My animation montages are not playing

The idle animation just continues on.

[raw sleet]

But the Print String does happen!

[summer nexus]

I like to create a material and have four transparent PNG images. I would like to layer them on top of each other and arrange them in the correct order.

[maiden heath]

Hi everyone I have a problem with the UI I would like to take "Throbber" to activate the Visibility but when it starts I don't see it how can I solve it?

[surreal sonnet]

idk what kind of UI it is but if the whole thing is not showing you need to add it to viewport after you create it

[dark drum]

As Blonker has said, you need to add it to the viewport or add it to a widget (as a child) that's already on the viewport. Widgets aren't automatically added.

[dark drum]

I'm going to say you haven't added a 'Slot' to you're anim graph. Montages play on slots and without any, they won't play.

[maiden heath]

I put it in my Open Level Blueprint

[maiden heath]

I put it in my Open Level Blueprint

I unplugged it but before when it was plugged in it didn't work

[dark drum]

There's a node called 'Add to Viewport' alternatively, if you have a widget that has already been added to the viewport, you can get the relevant panel (canvas, verticle box, overlay etc.) you wish to place the newly created widget inside using the 'Add Child' node.

[dark drum]

Also, handling UI on the level BP isn't a good idea as level BP is one way meaning nothing will ever be able to get the widget that was created. Normally, this would be done from either the player character or player controller.

[raw sleet]

Oh I will investigate that! Thank you 😄

[wooden stratus]

loop through your inventory and look for your key, you even have an array there

or simply set a boolean once the player obtains that key and check for that boolean instead

[wooden stratus]

Sounds like you changed up references along the way and that requires to refresh those referenced nodes as well

you can do that by right clicking -> refresh node

[kindred galleon]

Quick fix for this? Location returns as 0,0,0 for the socket bone start and end...

it sometimes does the correct location sometimes doesnt

on hit result, it will go to 0,0,0 if it doesnt hit anything. and it goes to the correct hit result if it does hit.

[wooden stratus]

you are using the wrong node.
Its "Montage Play", Target is AnimInstance

there are different ones for different cases, read up on them

[wide smelt]

i've got a physics problem where i got a character, a car and say a destructible wall. i want it so that if the car drives with enough force, it destroys the wall but the character can't.

is there a way to generate collisions so that

if A -> B: nothing happens
C -> B: B brakes

if car drive with enough force i don't want there to be any resistence etc...

now that i am thinking about it, maybe it's possible to wrap wall in a collider that only blocks human players

[wooden stratus]

Use the observer pattern,
You coud create an event dispatcher in your player/projectile/etc... (whatever your enemies get hit with) and add inputs being the hit type and wether its strong or not.
You call that event when it hits an enemy in your player/projectile/etc.. class/bp
You bind your enemies to that event
Thats one solution

[wooden stratus]

the character "cant" what?

if its the character not being able to break the wall than simply check if the wall was hit by your car instance with force > breakThreshold and thats it

[wide smelt]

when human character interacts with wall, it's a solid impenetrable object
when car interacts with wall, it gets destroyed

but would that not generate a force?

i.e. wall would get destroyed but car would bounce

[wooden stratus]

Thats something that requires you to tweak around with the physics settings of the car

how much mass it has and stuff

and how "strong" the wall is

[wide smelt]

👍

[raw sleet]

Okay, thanks man

[kindred galleon]

could anyone tell me what and where this is?

[gentle urchin]

Class defaults wouldnt have the data you look for

[odd kiln]

Hi all

Anyone knows why my collisions are not blocking each other ?

I added a "Box Collision" into 2 "Characters" and they not blocking

[wooden stratus]

you need to set their collision properties too

[odd kiln]

I set both to "Block All" with all checked

But still not colliding

Maybe only the root can collide ? (Capsule Component is my root)

[mental trellis]

Yes. For standard collision only the root is checked.

[odd kiln]

So I need to create another Actor and attach it to my Character?

Another Actor with my Box Collision I mean

[mental trellis]

You'd need to "weld" them I think. I'm not sure on how that all works honestly.

[odd kiln]

I'll try. Thanks !

[compact fable]

how can I acces widget variables inside this child blueprint?

[neon lion]

when i create a class in CPP and then make a blueprint of it, is there any way to mark a property as required, so that the blueprint won't compile if that variable hasn't been given a nondefault value?

[odd kiln]

Can I detect if my camera is still rotating or is static ? (no movement)

[gentle urchin]

Sure

Track its delta location

[loud tree]

No, you shouldn't need a whole new actor to add another bit of collision.
Try posting SS of your set up to get more accurate answers

[odd kiln]

So I need to call an Event in the "Event Tick" and compare 2 rotations one before delay and one after ?

[dire frost]

no need for delays

[odd kiln]

The problem is that I have a "Camera Lag" enabled and even if my camera still rotating/moving, the number is "0"

[dire frost]

at begin play, save the current info in a "old transform" variable. in tick, compare the current transform to the saved oldTransform and just make sure to save the new transform to the ofldTransform variable after you've done your check

get its world transform instead of local/relative

[odd kiln]

That's what I did. I tried with my "Camera Boom" and my "FollowCamera" and it's the same

[dire frost]

the camera's world location stays the same?

[odd kiln]

The Camera Lag is not taken into account

[dire frost]

can you show me your code? i have hard time believing that 😅

[odd kiln]

Here it is

[dire frost]

use the comera world location instead of the boom's

the camera is the thing that's moving

the boom stays static

[odd kiln]

When I'm moving the location is changing but when I stop moving the camera Location becomes "0" even if the Camera Lag is still making my Camera moving

[dire frost]

is the camera component's reference instead of the camera's boom reference

you are getting the boom's location which of course will stay static when the camera lags

[odd kiln]

I just tried with the Follow camera and it's the same

I tried Location and Rotation

I have "Camera Lag" and "Camera Rotation Lag" enabled

[dire frost]

hmmm alright let me open unreal on my end real quick

[odd kiln]

Maybe it's because I'm doing a "Delay" in a "Tick" event so it makes bugging everything ?

[dire frost]

oh wait im dumb i didnt notice the delay! 🤦‍♂️

[dire frost]

i was dead set on the implementation i mentioned to you here

try to implement that and see if the issue persist

which hopefully it wont

[odd kiln]

Sorry that's my bad I'm the dumb there

I will try, thank you !

[dire frost]

de rien

[wooden stratus]

No, there is no way to enforce a required property. That would require you to create custom validation function which checks if they have any values or not

[gentle urchin]

CheckForErrors?

Triggered by map check

https://dev.epicgames.com/documentation/en-us/unreal-engine/API/Runtime/Engine/GameFramework/AActor/CheckForErrors/?application_version=5.1

https://dev.epicgames.com/documentation/en-us/unreal-engine/API/Runtime/Engine/GameFramework/AActor/IsDataValid?application_version=5.1

[neon lion]

oh hey thats a cool feature

[gentle urchin]

Along with EditCondition, for properties if that can help at all

[rotund harness]

does anyone have any tips on how to approach designing a swimming system like the one in BOTW in the sense that you are locked to the surface, but with the feature of buoyancy? So for example if the player jumps into the water from a height, the character goes underwater and then floats back to surface, and only then movement is enabled? Of course I'm not looking for a full explanation just some tips from experience if anyone has any

[gentle urchin]

While (Underwater) -> swim up with disabled imputs

[rotund harness]

but can you like use the buoyancy system of ue5 for that kind of thing or is it just better to just add some kind of force?

[lunar sleet]

Then probably lock the Z axis and Bob’s your uncle

[rotund harness]

But in case of waves?

[lunar sleet]

Maybe. You’ll have to try it

[rotund harness]

ok

thanks

[drowsy anvil]

Hello, any ideas how would I make my point system here to transfer points to another HUD text element, by removing 10% of those points every second and moving that 10% to the final score points bar?

[lunar sleet]

Timer by event, and simple maths

[drowsy anvil]

do you know what I could use for transferring the removed points from one hud text element to the other?

[lunar sleet]

Store them in a float and plug them into the other text box, UE should do the conversion for you automatically

#umg for widget questions

[loud tree]

#animation or #multiplayer may be better places to ask.
Whatever you're doing isn't being replicated properly.

[keen tinsel]

i'll see , thank you

[drowsy anvil]

sorry if bothering, I tried to do what you described, is this close to anything that I was looking to do? EDIT: thanks I got everything working

[loud tree]

Dunno what you're going for but off the bat I noticed you have an event from your timer not running anything

[drowsy anvil]

ah yeah, hud stuff is working now, just need to figure the math stuff out. EDIT fixed math, very happy now

[tall plinth]

ooo ty ill keep in mind

[shy canyon]

Is it possible after selecting an item from an Enum, expose different parameters/variables associated with that item?

[manic vessel]

can anyone remind me how I can loop through an enum each time a button is clicked, Im trying to chenge to the next selection each time i click

[dry sleet]

Only in C++, sadly.

That's EditCondition.

UPROPERTY(EditAnywhere, BlueprintReadWrite, meta = (EditCondition = "Alignment == EAlignments::ChaoticEvil", EditConditionHides))
float Badness = 0.f;

Something like that is how you set it up in C++, but it's not possible through pure BP unfortunately.

But the best day to get started with C++ in Unreal is yesterday, the second best is today :)

[wild crater]

How can I run my dev build using custom launch options? We have them and use them on Steam, I just don't know how to use them straight for an .exe from cmd or something like that.

[coarse grove]

Hello, Im trying to do some basic interaction between 2 actors and an actor component using event dispatcher. But my event dispatcher seems to not been called. Anyone have an idea why?

[maiden wadi]

Do you see the print?

[coarse grove]

the print after the branch is working, but the print with the red comment is not working. The first print says the variable is true, so its working properly but seems the event dispatcher is not being called

[maiden wadi]

Then you're either calling it on the wrong component or somehow that binding is not bound.

Which. Looking at your BPs again. You're not calling it on the correct thing.

@coarse grove

[coarse grove]

its the same actor component, why its not calling the correct one?

[maiden wadi]

It's not the same.

It's the same component TYPE on two DIFFERENT actors. The component is not the same instance.

[loud tree]

I may be misunderstanding but
Have you tried dragging the "target" for the interface to the input on the function
Then depending on where that interface is run connect the input of the function to the overlapped actor or component from the begin overlap?

[coarse grove]

im not using interface, maybe thats the problem. I just created an actor component and added it to 2 different actors (so i avoid using references), and i tried to create an event dispatcher inside the actor component so i was thinking both could interact with the actor component without the need of references

[coarse grove]

hmmm i thought they were the same and i could add them to different actors and use them without reference

[loud tree]

I just realized that said "call can teleport "
Sorry 😅

[maiden wadi]

No. What you need to do is get the OtherActor from the overlap. GetComponentByClass, with the TeleportComponent as the type. Then call your function using that output.

[haughty snow]

is it a bad idea to try and implement a dialogue system that uses a for each w/ break to progress the dialogue, breaking when the user needs to input a response, then continuing from where the break occured? feel like im missing a more obvious architecture here

[sharp void]

probably easier to reason about something where the state is represented entirely in variables, and not in deferrede xecution flow

[maiden wadi]

That isn't how a for each loop works. They don't wait between frames.

You should really check out the FlowGraph plugin.

[coarse grove]

thank you! that worked! Now i got it, they are different instances.

[maiden wadi]

Nice! 😄 Happy it worked out

[haughty snow]

yeah i think this is not the best method - though it is only for a quick prototype. I have a custom for each macro that i added a delay / break to that i'd use for this

ill try and make it state-based first

[loud tree]

#umg

[robust merlin]

hey would anyone know how to describe blue prints for dummies by chance? 😂 like i just dont quite understand some of the terminologies and what it does, like the description of what location and condition mean in game terms? (sorry to even ask i know its fairly simple in a grand scheme of things)

[blazing comet]

Hey, I'm trying to do some high speed collisions using the 3rd Person pawn and the open world terrain. Around 1200cm/s landing.
My flying pawn falls through the terrain about 40% of the time.
If I make the capsule huge and enable CCD, I get to 95% landings, but the capsule collides stopping forward movement, then the mesh falls to the terrain. Not great.

This seems like a solved problem, what am I missing?

[blazing comet]

Your question is too general to answer here. You should try the documentation, watch some vids, or take a class on Udemy. You're going to spend alot of time not succeeding with this approach. You need to study this like 4 college courses. Modeling, materials, effects, animation, programming - it's more than one parson can learn in chat.

[robust merlin]

oh i gotcha, thank you i appreciate you. I'll see what all i can find 🙏

[blazing comet]

https://www.udemy.com/ and gamedev.tv sell some courses that can take you forward. I'd recommend the "Game Math" for programming or a Blueprints course. Udemy has sales for $20 courses all the time. You shouldn't have to pay full price.

[visual ember]

I'd suggest youtube first to see if you even want to preoceed further. then either stick with yt or find a good paid course if you really need one

[blazing comet]

UE's documentation is hard to search and browse, but you might find this a good free start.
I still recommend the "game dev math" course if you're planning to make gameplay code.
: https://dev.epicgames.com/community/learning/courses/OP/unreal-engine-blueprints-and-gameplay-for-game-designers/8bB/introduction-to-the-course

[loud tree]

https://youtube.com/@mathewwadsteintutorials?si=P-BG2djzaxghZViU

Here's an extremely solid place to start as well.

[robust merlin]

thank you guys i really appreciate you. I'm shooting for a survival game i'm not too sure what to do for an enemy yet but i'll figure that out way later, but something kinda related to the genre of ark but not ark 😂

[blazing comet]

There are some survival game templates (and other game templates) in the UE marketplace. Whether you're making games for fun or profit, you'll learn more by customizing them vs starting from scratch. This one is deluxe: https://www.unrealengine.com/marketplace/en-US/product/easy-survival-rpg
This one is basic: https://www.youtube.com/watch?v=FVvs-M-ucus
Both will get you started and be more fun 🙂 There are some YT vids that walk through building survuval games. It's a long distance run, not a sprint. 60 mins a day and you'll have it for sure.

[deep vine]

whats the proper way to do a loop if you want a sound to play every 30 to 60 seconds?

right now i got a tick > While loop > Completed goes to play sound > delay (30 to 60 seconds) and back to loop

which i'm pretty sure will just create an infinite loop

[dawn gazelle]

Rather than using tick, you can use a "Set Timer By Event" node that you can set up on an event and have its delegate call back to that same event to start another timer up.

[deep vine]

Thanks, never really looked into loops much until today.

[blazing comet]

You might try a course if you want to learn faster....

[deep vine]

Good idea.

[dawn gazelle]

Here's an example of what I mean - this timer would continually fire randomly after 30-60 seconds once the PlaySoundAfterRandomDelay is called once.

[deep vine]

would this work?

i followed a quick walkthrough of how timer by event works

[molten pike]

This one's fun: I have a BP with multiple skeletal meshes for modularity. Each is assigned to the same animBP, which I'm starting to think means one instance of the animBP each. The grenade throw animation in the animBP has notifies for grabGrenade and releaseGrenade, which because each mesh is executing the animation means that the grab grenade and release grenade functions are each being called multiple times per grenade throw.

How can I get a mesh to ignore animation notifies? Or how can I get each mesh of my BP to follow the main mesh without their own animBP instances?

I've verified this by checking the number of spawned grenades. Pre-notifies it's 1. Post-notifies it's 8, cooresponding to the numebr of meshes in my BP.

reducing the number of meshes to 1 reduces the number of grenades to 1. But then I lose the mesh modularity.

Can the animBP be made a singleton so it can only ever have one instance?

BP meshes

animation notifies for throwGrenade

{
    if(!Reloading && !Meleeing &&!Shooting && !Throwing && !Healing && !GetCharacterMovement()->IsFalling() && GetGrenadesCarried() > 0)
    {
        Throwing = true;
        if(ThrowableClass == nullptr)
        {
            UE_LOG(LogTemp, Error, TEXT("There is no GrenadeClass!"));
        }
        else
        {
            GetCharacterMovement()->Deactivate();
            SetGrenadesCarried(GetGrenadesCarried() - 1);
            UE_LOG(LogTemp, Warning, TEXT("Grenade Spawned."));
        }    
    }
}

bool ACharacter::GrabGrenade()
{
    if(!GrenadeGrabbed)
    {
        GrenadeGrabbed = true;
        UE_LOG(LogTemp, Warning, TEXT("Grenade Grabbed."));
        FActorSpawnParameters SpawnParams;
        SpawnParams.SpawnCollisionHandlingOverride = ESpawnActorCollisionHandlingMethod::AlwaysSpawn;
        
        Throwable = GetWorld()->SpawnActor<AThrowable>(ThrowableClass, SpawnParams);
        if(Throwable != nullptr)
        {
            Throwable->AttachToComponent(GetMesh(), FAttachmentTransformRules::KeepRelativeTransform, TEXT("hand_l"));
            Throwable->SetOwner(this);
            Weapons.Add(Throwable);
        }
    }
    GrenadeGrabbed = false;
    return true;
}

bool ACharacter::ReleaseGrenade()
{
    if(!GrenadeReleased)
    {
        GrenadeReleased = true;
        UE_LOG(LogTemp, Warning, TEXT("Grenade Released."));
        Throwable->Throw(UKismetMathLibrary::GetForwardVector(GetControlRotation()));
        GetCharacterMovement()->Activate();
        Throwing = false;
    }
    GrenadeReleased = false;
    return true;
}```

animBP event graph for the anim notifies

[molten pike]

if(!GrenadeGrabbed) and if(!GrenadeReleased) also don't appear to prevent multiple instances of that code from running

[lunar sleet]

You’ve been here for a year but must have missed the #rules channel

[flat raft]

is there a way to check multiple gameplay tags at once ? key.blue and key.red is in the container.

[dawn gazelle]

Something like this (with your appropriate tags of course)

Exact match only if you don't have further tags, like key.red.square and key.red.circle

[undone bluff]

Set leader pose component in construction script

For first person I have a separated head (to hide but still cast shadows), hands (to render with a different FOV) and body

And I got it set up with that

Body runs the animbp and the other skeletal meshes just copy it

[iron idol]

whats an easy way to make a single switch function for this refrence without just stacking a bunch of branches?

would switch on string be what I'm looking for?

[stone field]

Switch on string would work, but it is a bit fragile - if a classname changes, logic will break

[iron idol]

yea it crashed ue

despite having the same text

[stone field]

huh... well that's no good : E

[iron idol]

i might need switch on name instead?

nope not compatible haha

[stone field]

I would prefer having an enum or a tag or something to use as the value for switching.
That said, switching on name really shouldn't be crashing like that, sounds odd

[iron idol]

so i tried enum but its not working

but that was my first idea

maybe its because the enum is assigned in the spell actor?

[stone field]

best walk through the logic with breakpoints to check what values you are getting

[iron idol]

well i checked the text thats coming through with a print string and that was fine

so i then took that same text and tried with switch on text

nevermind I figured it out. I did need switch on name.

😅

[olive pasture]

hello everyone. in a game im working on i need to be able to spawn the player pawn at a given transform. what function do i need to override to do this?
note that this is not using a player start, but a transform which is changing during runtime.

[solemn bramble]

Hello, I'd suggest looking into 2 overridable functions in Game Mode:

They let you customize Player Start logic.

[molten pike]

Thanks! I'll look into that

[olive pasture]

thank you. the issue is that both of these expect an actor to return. but im thinking ill just have a player start which is like 'dynamic' and ill set its transform to what i want and just use that

[sweet silo]

hi ! i have this throwing ladder mechanic
But how could i have more control over where it's thrown

ill send a vid

i wanna be able to cross over cliffs and stuff

and have also feeback on wher is going to be thrwon.. Maybe with a UI ? *

also the collisions with the cliffs are making no sense.. maybe i should do this in a city instead

and i would also like to create a system where you can choose the size of the ladder before you throw it but maybe it would break the flow of the game so not sure

[solemn bramble]

Hello, it could be handled with a Trace (not necessarily a Line Trace, as it should probably more adjusted to ladder's shape). You could do a frontal trace from player's camera, and draw a fake ladder (with translucent material, for example) in the trace collision location. And spawn ladder in that exact position when proper input is pressed.

It still doesn't fully solve collision issues though, such traces usually need to be quite complex to fully handle various enviro shapes.

[sweet silo]

oh nice that's a good idea

how could i draw the fake ladder?

im already using a line trace for the spawining mechnicn

[solemn bramble]

just spawn a fake BP, without collision and with some translucent material, for example

[sweet silo]

oh ok nice just the same ladder but with diff mat

[solemn bramble]

destroy it when not required

Or don't spawn and destroy but re-use existing one, just hide and show. : )

[sweet silo]

ah yeah maybe dynamic material is even bettetr

[solemn bramble]

could work as well

[sweet silo]

Thanks ill try those

im just wondering because like pressing E would show the translucent ladder

and then pressing E again would throw it

how would this work

[solemn bramble]

It's usually handled in a way that fake object is displayed whenever we're in some kind of "building" mode, and then it's removed and replaced by proper object when we press Build button

[sweet silo]

i have this for now

[sweet silo]

oh ok and triggered ect wont be of use here on the enhanced action node?

[solemn bramble]

it really depends on actual design

you might for example display fake ladder and do trace when you're HOLDING the button, and then place the ladder when you RELEASE it

but I don't know if that suits you

you can have a toggleable "Building" mode/state, and display fake mesh when in that state, and then build when input is pressed

[sweet silo]

yeah that first option would be good

your advice are great tahnks

[solemn bramble]

np : )

[sweet silo]

so triggered would be "holding"?

nope it's not lol

ok i get it its ongoin

[solemn bramble]

It depends how actual Input Action is configured

[sweet silo]

oh ok tans

[sweet silo]

how can i attached the spawned item to the firstperson character

this should be working but isnt

[solemn bramble]

In your particular scenario I'd rather just set its transform to the location of Trace hit, continuously

as AFAIR you want to show it exactly in the position it will be placed

Also - now when I think about it you can actually consider a completely different approach and try moving your ladder with the Physics Handle component (https://www.youtube.com/watch?v=GS0YkKK8o_w).

[sweet silo]

oh interesting

[sweet silo]

yes exactly

[sweet silo]

maybe that's a bit advanced but i'll tyr

[dark drum]

The reason it's not working is because you haven't specified the parent actor you want the target to attach to.

[sweet silo]

i tried with self but it's not working either 🙂 but thanks

[dark drum]

What is self? The player character?

[frosty heron]

What do you think self returns?

[sweet silo]

first person character ?

[sweet silo]

oh damn maybe not 🙂

[dark drum]

whats this logic on?

[frosty heron]

self returns the blueprint it's in

are you with me there?

[sweet silo]

yes

[frosty heron]

so if you write self on bp player controller it will return that instance of the bp player controller

[sweet silo]

ok i get it

[sweet silo]

What should i do then

[maiden heath]

Hello everyone, a question I would like to ask in the UI a carousel that inside there are buttons that activate certain functions within the UI. Advice on how I can implement it? or even a Tutorial that explains the steps to me?

[gentle urchin]

#umg and provide an example if you got some reference for it

[narrow pendant]

is there a way to pass in a wildcard for a map into a function?

[dark drum]

What are you trying to do? As in where would the map data be coming from?

[gentle urchin]

Print wildcard value

I doubt that can work

Aa stuff need conversions based on their type ?

[dark drum]

It might, the format text node allows you to plug all sorts into it. Never actually tried though.

[dry sleet]

Don't macros let you create wildcard pins?

The alternative otherwise is probably non-trivial C++.

[gentle urchin]

Macros do indeed

But an object pointer dont have a direct conversion to a text input afaik

[narrow pendant]

I'm trying to print values from any arbitrary map. I'm doing live link stuff and have a bunch of curve<>value maps that I want to make a generic debug function for

I'll try with a macro

[sweet silo]

oh ok got it needed a ref to my player charaacter not to self

ok i got it but the ladder is far away from me how can i specify the location

[loud tree]

I think I'm having a moment here regarding references and dependencies.. and won't be able to research til later..

Adding an input to a BP interface creates a hard reference to whatever that input type is, right?

I'm assuming that hard reference is only relevant on the actor the interface is implemented on..

Is that correct?

Along with that, this part I thought I knew but can't get out of my own head right now...
Are dependencies from actors in the world referenced by the the players clients memory?

Probably a bad one but..
Example
Player comes across a door...
Door needs a password.
Door has hard reference to the thing holding the password.
Player does not have a hard reference to the password.
Is that actor holding the password still loaded into memory as if the players character had that reference or is it still just that the door and it's local assets are loaded?

I'm assuming everything in the current level that is actively relevant to the player character is loaded but I'm still kind of fresh into learning this.

Apologies, if this is worded atrociously.

[sand bloom]

Afaik a hard reference doesn't need to be inside your player for it to be loaded in

you can look into soft references too

[gentle urchin]

Hard references loads the thing they're referencing when they themself are loaded

[sand bloom]

Yeah so I imagine your doors would still be loading it all in

[gentle urchin]

Casting to player character is usually fine as its an always loaded class

Casting the other way around is more troublesome for this exact reason

Having a hard ref to a door that may or may not be loaded , forces it to load regardless

Same with its dependency (the key)

[sand bloom]

Also does anyone have experience with github because I may have just completely fucked up my project lol I feel ill
I switched branches foolishly before backing up because I didn't expect a ton of issues like this
now I have a ton of merge issues with my code and I don't even remember what these stashed changes are supposed to do

What is the best solution for not losing the progress I tried to upload

I should have updated the branch I took this from first..

I've never seen merge issues like this

I wanted to overwrite everything that was old

but I guess with merge it has issues partially overwriting things?

[visual ember]

have local branches. local commits. never leave dangling files when doing operations. then if anything effs up, you just revert any pending changes

[sand bloom]

using github desktop btw

Yeah I should have uploaded it my branch first

before bringing this back to main

But i'm not sure how to save my progress now

Did github merge my current stuff with the old main stuff?

is it some weird broken mix?

I'm trying to see if I can salvage it somehow

I haven't like actually uploaded anything yet I think i'm in a weird limbo

[frosty heron]

what's your git ignore like? you shouldn't include intermediate folder

[sand bloom]

So I was on a branch, changed the branch with a lot of stuff. Instead of uploading to that branch with my changes I switched back to main which is now causing the issues

oh my git ignore I added like ptb files because it was big

and apparently pdb files aren't vital

[loud tree]

Thank you all. I to a degree thought that's how it worked but wasn't 100% sure..

Recently started getting into interfaces deeper and learning about the hard reference on input got me thinking on how things not referenced directly by the player works when loaded.

[frosty heron]

you shouldn't even include intermediate and binaries to begin with

[sand bloom]

Yeah that sounds about right actually, my setup isn't ideal

I looked into it but that was a while back so im rusty

[frosty heron]

declare your class in c++ and load heavy assets from soft reference

you don't work around hard references with interface, that's not even gonna work

[sand bloom]

I'm just hoping I can salvage my progress now and try to have a less shitty github setup after that

once I have like my proper project folder I can try and make the github repository better

and focus it just on the relevant folder

since it does seem to include some unneccesary things

totally forgot about focusing it vs just using github for the whole folder

I don't understand why I have stashed changes

do I try to commit

I mean the conflicts should be problematic on their own lol

[frosty heron]

add intermediate, saved and binaries to your git ignore

also #source-control probably can help

[sand bloom]

oh right i'll go do that once/if I can salvage my project files

thanks ill check there too

[loud tree]

I know interfaces are generally utilized to avoid hard references

But when you add an input on an interface to my understanding that acts the same as casting and then creates a hard reference to that input type

I know that needs to be controlled and limited the same as casting.

The question I had with that was more specific on whether that dependency/reference is only created on the implementing actor or
If it's created on the caller as well.

[frosty heron]

NOOO!

interface is not UTILIZED to avoid hard ref

ignore youtube noobs

[gentle urchin]

Phrasing could be better but

[loud tree]

I know it has deeper uses and functionality but I'm just not sure how else to phrase it rn per my question

[gentle urchin]

You dont want to include hard refs to interfaces in general

[frosty heron]

You don't use interface to avoid casting or hard ref, period

different tool for different job

totally unrelated

[gentle urchin]

Interfaces bring known functionality to unknown classes

[frosty heron]

god damn youtubers

first page claimed many victims

[gentle urchin]

With the ref 😂

Lol

[loud tree]

I'm familiar with that
My terminology is not the greatest
So I apologize for any misunderstandings by my phrasing

[visual ember]

"don't use tick" "don't cast" "don't watch my video" are synonyms

[frosty heron]

It's not about terminology, I get where you coming from. It's just unfortunately one of the most common bad practices prepetuated by youtubers

all started from the blind leading the blind

[gentle urchin]

Been like that for yeeeaaars

Did they even do a mem check?

[sand bloom]

Wouldn't you be able to use generic actor references with said interfaces

I thought that was the focus of discourse surrounding it

[loud tree]

No
They never do lol

[gentle urchin]

Or reference viewer?

Thats would expose their wrongdoings instantly

[frosty heron]

The point is, if you need to access different blueprint, you will need hard ref anyway. Cast is harmless, it's the misuse of hard ref that gets thing loaded to memory.
So these people that says avoid cast use interface, they end up having hard ref anyway. And now inheritance is thrown out of the window and you will also end up with debugging nightmare.

Use interface if you need to communicate between different classes, there's no really avoid casting. The proper workflow is to make native class in cpp and use soft references to load heavy assets.

[gentle urchin]

Interfaces easily bridge functionality between unrelated classes which cant easily share a common parent

Pawn vs regular actor is one example

[dark drum]

I might do a video tutorial titled 'Stop Using Interfaces... Cast Instead!!'

[gentle urchin]

Stop using interfaces... use componemts instead

[sand bloom]

Ah right by focusing on casting people forget the actual issue then aka hard refs

[dark drum]

Haha, to be fair, components are the way to go.

[loud tree]

I need to learn to verbalize things like this.
All stuff I am familiar with but just couldn't get out lol

[gentle urchin]

Yes, i wasnt joking

[frosty heron]

There's almost no interface in lyra afaik, just 1 - 2 very minimum stuff for a getter for ability comp and team interface?

[dark drum]

I'll check, I've still go the project on my comp but you're probally right.

[frosty heron]

I don't deep inside too much cuz I can't read codes but the interface they had are like a few lines of codes

rest are components

hero component, ability component, targeting, etc

[loud tree]

Also any good resources on components?
If none readily available I can dig in later to start lewrning.

[frosty heron]

it's just an object you can attach to actors
Some examples
Rotating component, Character movement component, Projectile component, etc

something you can grant to an actor, also useful to give actors that doesn't share the same base class the same or simmiliar functionality

picture Exploding Component which just explode the owner after X seconds

you can add that component to your player or a barrel

if you are doing inventory system, you probably should use component

[sand bloom]

Yeah they're very useful for being modular reusable things but also for avoiding "god classes" or whatever aka putting all your code inside one actor like your player

which is not great

[frosty heron]

^ also reduce repetition

[visual ember]

I prefer slapping InteracteeComponent/PickableComponent instead of making class implement interface

[gentle urchin]

Yepp

[frosty heron]

why write the same functionality again when a lot of things can benefit from the entity?

[gentle urchin]

Holds state aswell

[loud tree]

All fantastic info ty

Will definitely read deeper into and learn to use

[gentle urchin]

Keeps code clean and segmented also

And if you dont know them

Learn about and use event delegates

Life changing

[dark drum]

So there's 1 blueprint BPI which is for getting the audio component for emote sounds and what I believe are 6 C++ interfaces in the Lyra project. Most of which are for getting data from an actor.

[gentle urchin]

I went 4 years without checking them out because youtube said ignore it .. silly me

[rotund harness]

Does anyone know how the buoyancy in the water system plugin detects the waves not as a purely visual effect? I want the player swim following the surface of the water, and not just on a plane

[gentle urchin]

Guess youd somehow read out the pixel offset ?

[rotund harness]

Do you have any idea on how i could do that?

[iron idol]

how do you get this as opposed to

this

[visual ember]

I think you need to drag off of the event delegate handle (like one on a timer node)

[iron idol]

I probably should have specified its for a binding

[iron idol]

weird when I do it its just blank

[gentle urchin]

Object plugged in vs not

Not that weird 😅

[iron idol]

fair enough so maybe the question is why when I drag out from the event the dispatcher bind isnt on the list?

just trying to work out what I'm doing wrong here

[exotic saddle]

pls can someone help me how to use emmiter particles constantly

like this, but much faster and not refreshing them just spawn another

[narrow pendant]

instead of spawn burst instantaneous, use a spawn rate module

for more specific niagara questions --> #niagara

[lethal night]

Hiya was wandering if there is a way to change these in blueprint

I can only seem to change the attach end to not if it is attached or not.

[dry sleet]

I'm almost certain you can, because I remember doing it.

Either there's a node like "Set Attached Start/End...", or the bool is exposed and can be modified directly.

I don't really recall the exact method.

#profiling message

The pinned message in #profiling might be helpful.

[lunar sleet]

Also see #rules on crossposting since that channel was probably hiding from you for the past 3 years 😀

[fluid reef]

How can I sort an array by an associated float value? For example, I am making a Blueprint Editor Utility Widget that takes Selected Actors, loops through them, gets the Z value of their Box Extent, and then I want to position them in the Editor based on that Z value, but I can't figure out how to sort that array by that Z value. Can anyone point me in the right direction?

[trail crater]

Hey everyone, I have strange problem . My mesh isn't showing the player character, and the details panel is completely empty. Has anyone encountered this before or know a solution? thx for helping (or just looking 🥴 )

[keen raft]

😄 thx

[maiden wadi]

https://brandtborges.wixsite.com/authaer/post/fixing-corrupted-blueprints

[faint pasture]

You can think of a component as an interface + state

I love using components like that

[static sequoia]

Event Dispatcher is making no sense at all. When I interact with my Circuit Breaker it prints the string. But it doesn't print string on the blueprints it is in. But sometimes it does if a different instance (the door for example) is placed in the world. And when it does work it works perfectly. Every time it does end up working or not working it consistently follows that behavior and wont flip between working and not working until resetting and trying to play again. I dont understand

[lunar sleet]

Why would you get actor of class to just bind the event? Not like you’re unbinding it dynamically

And where is your event call?

[static sequoia]

Just to get the "bind event to flip breaker off"? is that wrong

first image

[static sequoia]

my fault, first image is the breaker

[lunar sleet]

Why not just bind it in the actual begin play of that actor?

Oh i kinda see what you’re doing nvm

But also your first image shows an interface event too, are you mixing both?

[static sequoia]

its separate blueprints, getting the event from BP_circuitbreaker to trigger locks on 2 other blueprints, BP_EntranceDoubleDoor and BP_GateMain.

[static sequoia]

lemme see what you are talking about 1s

[lunar sleet]

First image

Looks to me as if you’re using an interface event to call a dispatcher

Which is kinda like using your left arm to hold your right hand to scratch your head 😀

[static sequoia]

the interface is for if the object is an interactible then allow it to be toggled

this is BP_PlayerCharacter

so the circuit breaker and double door and gate are interactibles so I can hit E on them

[lunar sleet]

An interface and a dispatcher are 2 different methods of inter-bp comms, best to just pick one

There’s a pinned video on bp comms training here, have you watched it yet?

[static sequoia]

no I have not, I was following a guide and it worked perfectly for him

so now I am very confused and thats how I ended up here

should I send you the videos and let you scan through them to show you what I mean?

[lunar sleet]

No, you should watch that video in its entirety. It’s kinda long but you’ll understand bp comms when you’re done

Right now you have at least 2 potential reasons why you’re getting this weird flip flop behaviour

One being using 2 diff comms

[static sequoia]

Like it all made perfect sense to me but it just isnt working. ok ill watch it then

oh.... its 2 hours oof

[static sequoia]

But let me get this straight, what you are getting at is that the BPI and Event Dispatcher are affecting eachother?

[lunar sleet]

It’s worth it, trust

[lunar sleet]

Well one reason could be your interface event is not being called properly

You also have a branch in there

[static sequoia]

I have a branch in my interface? no I dont

theres nothing in it, its just a name

[neon lion]

how do i give a default value to a function input in blueprint?

i want this bool to be false if called without input

[static sequoia]

go to class defaults at the top and on the right side it should be in the default section, there you can set the default value of it

idk if I fully understood the question but I hope that helped

oh wait sorry I think I didnt understand, idk what to do about that so dont mind me

[neon lion]

no it isnt a variable of the class, its a parameter (input) to a function, that doesn't work

[static sequoia]

click the arrow next to it?

idk if thats the sollution either just throwing out stuff

[lunar sleet]

Really #blueprint message

[static sequoia]

none of those images is my interface blueprint, am I missinterpreting something

[lunar sleet]

The interface event

Again, you should really watch that video, interfaces can be confusing to begin with and you mixing them up with dispatchers is contributing to your issues

[static sequoia]

my interface event is connected to a branch. There is no branch in my interface

besides its working now idk exactly why

I had a duplicate of the breaker in the world so that might be apart of the reason

[loud tree]

I was just reading through the past bit of questions/talks to see if there's anything I can learn but I genuinely can't help but respond to this to admire it. Best comment I've seen today.

[static sequoia]

I see what he was getting at but I dont think it applies to this situation.

[blazing comet]

Hey there, has anyone worked with high speed collisions and CCD? I'm working on a jetpack, and with CCD and physics sub-stepping, my character is still passing through my terrain unless I make it's capsule huge.

I'm working with a test "Open World" level. Is there something incompatible between CCD and open world maps (world partition?) in 5.4? Thnx!

[fiery swallow]

With projectile movement component I found that extremely high speeds would almost be teleporting the actor

[loud tree]

It didn't really, but it was still a golden comment

[fiery swallow]

Probably the same with character movement component

Collision doesn't necessarily break, but you're moving so fast you're basically teleporting as you're moving faster then the tickrate can update you. And it starts becoming more like a teleport

[sweet silo]

i'm trying to use enhanced system with mouse wheel but i dont know how to make it go up and down

thanks

[fiery swallow]

Same effect happens when you tab out and your framerate drops to like 2 fps. You'll start glitching through walls

[sweet silo]

tried this but dosn't work

here is the code

[fiery swallow]

Collision isn't broken, you're going too fast

[blazing comet]

I'm trying to recreate the jetpack in Just Cause 3, but I'm not sure the speeds. I think it's around 1200cm/s now or 12m/s. When I slow it down, it's more reliable, but I'm on fast hardware so I'm wondering if there is a more reliable solution of if I"m missing something.

[fiery swallow]

You could try and fix this problem by line tracing in the direction you're moving in, if you start getting close to an object then start reducing the speed

The other option is to downscale the size of the game

I mean everything

[blazing comet]

That's a brilliant idea to slow down.

[fiery swallow]

Because if everything's really small then the calculations and speed will be smaller too

[loud tree]

If it's the ground could you stop movement immediately on overlap?

[blazing comet]

I'm trying ot understand your second suggestion. Can I pull that off by scaling everything by .1 ?

[fiery swallow]

I wouldn't even recommend it. It was good idea to reimportant everything to be way smaller in our case because it was a space game and everything was massive

It would fix your problem, but it's not a solution I'd recommend you

But it would solve the problem, for a tiny object 100/ms would feel as fast as a big object going 1000/ms

[blazing comet]

That's super interesting Seeker, both suggestions THANK YOU!

[gentle urchin]

Cant you just trace the delta ?

Every frame

You can assume the player will keepngoing in the exact same direction as last frame

So you predict and trace

Not relying on just the collider

Tick -> Velocity.Normalize x speed x Delta = Tracelength

Then trace from Actorlocation to actorlocation + TraceLength

Sweep capsule if you must

[spice sequoia]

Is there a way of automating in the editor (maybe a scripted asset action) of creating an enumeration list from an array of strings - I have a lot I want to convert to a list of enums but I don't want to have to create and type each one?

[mental trellis]

Create c++ enums using regex.

[dawn gazelle]

beat me to it...

I was gunna say use C++ and use excel with some clever formulas to just copy and paste the definition of each enumerator value.

[mental trellis]

That sounds far too complex.

However

Refer to this chart: https://xkcd.com/1205/

[spice sequoia]

Thanks - was just reading in to a c++ option, is there a way of doing this via blueprints?

[mental trellis]

You would spend longer writing a script to do it than doing it by hand.

Also don't use BP enums and structs if you can avoid it.

[granite dome]

i got this tutorial that uses inputaction primaryaction but i cant find this in my first person character

[loud tree]

Can you explain a little on why for a noob called me or refer me to something that does?

[frosty heron]

They are broken tool, struct especially famous for breaking your project and stops you from packaging (unknown struct error / all values defaulted).

They are also not reachable in cpp land so if you want to cross later, you will end up doing a lot of work

[loud tree]

ty for the info!

[round elk]

hey does anyone know of a way to make an item only have physics, ie fall, when it isnt a child of a character, thanks

[spare sentinel]

when i press the button the z value is rotating too -.-

why?

[marble tusk]

Because you're using "ADD Relative Rotation" and have the current relative Z attached to it

So it's adding the current relative Z rotation to the relative Z rotation when it's called

You'd probably only want that connected if you were to be using "SET relative rotation"

[spare sentinel]

when i reach ^90 z is rotating

on the top over the character the camera rotating on z value

[marble tusk]

gimbal lock probably

[round elk]

whenever the chracter picks up the item they ened up immediately dropping it

[spare sentinel]

what is gable lock?

[frosty heron]

Prob best to google it

But you will want to use quaternions to get around the issue of gimbal lock

[spare sentinel]

how can i do that?

[frosty heron]

@round elk I wouldn't say to avoid anything because almost everything have its uses but in the case of child actor component, just avoid that.

[frosty heron]

#game-math and reading some material on gimbals lock is prob what I would do

I don't know the actual calculation my self

[spare sentinel]

is is so hart to rotate the camera up and down? xD

no one know?

[frosty heron]

Gimbals lock is common issue, go look it up

[round elk]

okay then

ill redo to use attach actor to component?

ive heard of that but does it well, work

[frosty heron]

Have the item represented by some data type, perhaps if it lives in inventory component that will be a huge plus.

Then for the representation of the mesh, I would use attach to component, it will work.

[round elk]

okay thank

[frosty heron]

@spare sentinel why are you rotating the camera boom to begin with?

If you want to manipulate the view, normally just set the control rotation

[spare sentinel]

control rotation? o.O what is this?

[frosty heron]

Go download third person template and see how the character adjust its view

You will see it's just mouse input with direction, added to the control rotation

Basically where the player is looking at

[spare sentinel]

that not what i need

i need top down template on press key move camrea up and down

from -90 to 90

complete up and copelte down

[frosty heron]

You still use control rotation for that

Just affect one of the axis

Before you brush it off probably try to understand important bit... look up control rotation then you can apply that to solve your problem

I don't see why the camera boom ever need to be rotated, it should be dictated by the control rotation

[round elk]

nevermind I fixed it

my dumbass made the box only use physics collisions

[visual ember]

https://tenor.com/view/simpsons-homer-simpson-gif-13518564799186478937

[round elk]

for whatever reason

I dont know why tf I clicked that

but thats 30m gone

[visual ember]

now you're older. and (maybe) wiser

[round elk]

yeah probably not the second one

well now im just confused

before attaching to actor it has physics

but when I detach it just hovers midair

[frosty heron]

@graceful sage still got error?

You just need to follow their instruction for the include. The file is located at subsystem/

[graceful sage]

no, it was really a stupid mistake on my part. But thanks.

[woeful pike]

Would this be the place to go to for any blueprinting issues?

[frail onyx]

pretty much yah

[woeful pike]

I will try to limit my issues to more specific issues. I would say I am a beginner when it comes to blueprints. I look forward to working with and hearing from everyone.

[timid wigeon]

Hi folks - is there a way to find all the references and events bind to a dispatcher?

[frosty heron]

Ctrl shift f, type the event then hit the binoculars is probably the only way

[timid wigeon]

Gotcha, Right, thanks!

Another question about event dispatcher:
From my understanding, event dispatcher is like a listener who is waiting to send message to their group chat, you can't implement logic in it in the class... but -- I also see that if a component has a event dispatcher, you can Override it?? What does this do?

Does any logic put in it gets executed when the event dispatcher is called, like you bind an event to it? What is the purpose of this compare to binding a event?

[gentle urchin]

You dont override it

You bind to it

So theres no inherited logic

They are functionally equal - binding manually or through the componemt details panel

And its kinda more like a mewa feed. Information only goes one way (from broadcaster (the caller) to the listeners (the bound events))

[raw sleet]

Man you saved the day with that one. Thank you! Subscribed to your channels as thanks 😄

[chrome crag]

Hey Im having trouble with my collider capsule for my cat game
Any ideas thats not too costly? The stairs collisions look accurate

[gentle urchin]

IK?

Or atleast 2 ground traces to figure out the angle /rotation

[chrome crag]

IK as in make animations for stairs? Sorry if bad question. I notice the capsule does not rotate if walking up stairs.. it seems problematic. Wish there was a way to have 4 capsules, one per foot or something lol

[gentle urchin]

Ik - inverse kinematic

Very commonly used for feet to touch uneven ground/steps

Basically a trace per foot, similar to your capsule wish, and then manipulation of the bones so it stretches to the hit location

[chrome crag]

Wow thats great

I will research it now, thank you!

[mild galleon]

Hello everyone!
I have a slight question here:
i have added in project settings default game mode and pawn etc.
Now, i have a main menu map with a different game mode, that kind of breaks it, because it overwrites the individual map settings, so either my main menu is broken or my map instance. What should i do?

[frosty heron]

@mild galleon you can override in your main menu map world setting to a game mode of your liking

[mild galleon]

in the world setting? okay, i thought it should be in the level blueprint, thank you for the pointer

thank you very much, it worked splendidly 🙂

[timid wigeon]

oh that actually answered a lot of question I had about dispatcher. That was the missing piece! Thanks!

[rough cedar]

is it possible to have a blueprint event fire from within an actor component?

I have implemented a BPI on an actor that i place in the world. When I overlap it, I want it to send me some variables. But i need all that data to be sent via blueprint interface event within the actor component. I have tried a few setups but not seeing anything firing within the component. Only works when i have the event fire within the character (but i dont want that).

nvm i figured it out!

just had to take the overlapped actor then get the component by class and THEN send the message to the BPI

[strange kraken]

hey guys, i've got a blueprint idea in mind but don't quite know how to go about it. The concept is to make a boombox (or any asset), that emits particle effects to the beat of a song, where you can procedurally change what song and particle effects are on each track etc. I'd like to take a MIDI file, assign a niagara particle system to each track on the MIDI, which then plays according to the data on said MIDI file. These niagara systems' position is then centered around a mesh (i.e. the boombox).

[umbral parrot]

Hello everyone, if I took a course on the basics of programming (blueprints), then how can I continue to teach them to develop a knowledge base. Does it make sense to do some mechanics according to tutorials, If I don't understand the whole code. Or are there any tasks for beginners in blueprits? I only need knowledge in the field of blueprints, in the future I will not study C++

[frosty heron]

teach what?

not a single video in youtube is for production

majority of them infact pretty bad

[umbral parrot]

blueprints, so that I can better understand how to implement mechanics with their help

[frosty heron]

you need to learn OOP

functions, events, event dispatcher, components, variables, inheritance, polymorphism

data types, including structs, data assets, data table

those are just the bare minimum

[umbral parrot]

This is what I mean. I took a course on OOP and now I began to better understand what was happening, only no course will provide an opportunity to understand all the nodes. I'm wondering how best to create a knowledge base in blueprits . I watch how others do it according to tutorials (although i don’t understand half the code) or do something of own, albeit very primitive, but what I will fully understand?

[frosty heron]

you can look at matthew;s wadsten video to understand nodes

rest is you figure out the logic on your own

[umbral parrot]

Cheers

[mighty crown]

Is there a way to filter on a datatables rows using a combination of the primary asset ID and other keys?

Like in SQL you can do SELECT * FROM X TABLE WHERE NAME == BLAH BLAH AND OTHER PROPERTY == BLAHBLAH?

[spark steppe]

no

[ancient moth]

Hey guys, I'm trying to implement a Dragable widget and now I have the issue, when i set the DefaultDragVisual to be the widget itself the drop callback is not fired anymore 😦

[crude helm]

Hey, I think I'm missing something very simple somewhere.
Regardless of what value I set to my initial seed (big red square), the sub sequent blueprints will always generate the same number.
Googling it a little bit, found people saying that one needs to make sure it is being passed as a reference, otherwise it will reset the stream to the start position. But as far as I can tell, there is only Structure for stream, no reference :(, also even if it resets to the start of the stream, the initial seed is different, I'm manually change it, so the initial position should also have a different value.

What am I missing?
Do I really need to generate a number from the stream, pass the number instead of the stream, then make a new random stream from that number and finally use this new stream?

[spark steppe]

you can't pass variables by reference when spawning a new actor

you should most likely implement your random seed in some global thing, e.g. gameinstance and provide a getter for others to use it

[tribal gazelle]

What would be the best practice to create a multi-language system? I was thinking of some sort of data table setup but is there any default or better ways to achieve it?

[dry sleet]

Can you send the integer instead of the stream?

EDIT: Yes, that's what you proposed, as I read now :)

[crude helm]

Oh crap, so it is the object reference problem after all. Crap.
Ok thanks for clarifying it. Yah I'll try a global thing instead, regenerating a new stream from a new seed every time is painful

[crude helm]

yah, that is how I was doing but its a pain, I guess I need a global generator instead, or just accept the fact that you have to make a new stream on each BP construction from the integer seed generated before

[sharp python]

Perhaps a dumb question, but: how bad is it really to have widgets tick? It is infinitely easier to do some things on a tick basis instead of with events (which will get called once every few ticks at best anyway) but everyone is warning me against ticking widgets. Is it a problem when I only have 10 instances of the widget at most?

[frosty heron]

if you have a lot, it actually matters

for the most part you don't really need widget to tick?

just update values with event dispatcher

[dry sleet]

If the event dispatcher will invoke on tick (roughly), I'd just tick the widget.

[sharp python]

The caveat is that the event dispatcher will get called at tick rates anyway. 🤔

[dry sleet]

And see if it shows up on the profiler.

[sharp python]

The bar regenerates.

[mighty crown]

well, that's disappointing.

[dry sleet]

The difference here is how often the bar will regenerate?

Does it represent a player value?

[sharp python]

It does not regenerate all the time, but it regenerates after you pick up health, yes.

[dry sleet]

In that case I would just subscribe to an event somewhere to update the bar, which would prevent it from ticking when the player's health is full, for instance.

[sharp python]

That is one half of what the widget tick does; the other half is to show/hide a target marker when you are targetting the character. This can be event driven but doing so requires each NPC to subscribe to the player's targetting component and that seems suboptimal as well.

[sweet silo]

hi i wanna use mouse wheel down for - 10 rotation and wheel up for +10 rotation how can i do that with Enhanced ? tahnks

this is my setup

[sharp python]

Your Add Actor Local Rotation won't have a target if it gets called from the IA event

[sweet silo]

it's already turning but like only in one direction

as if it didn't recognize mouse wheel up or down

[sharp python]

Do you mean scroll the mouse wheel up/down, or click/unclick the mouse wheel?

[sweet silo]

scroll the mouse

[sharp python]

If it's scroll, you'll need the ongoing exec pin and use the value to determine by how much

[sweet silo]

oh ok !

[sharp python]

You're listening to the start of the scrolling but aren't doing anything with the direction you're scrolling in

[sweet silo]

yeah that's what i thought

i would need to divide it between 1 or 0 or something

i should have something like this

but don't know how to get it

[sharp python]

Bleh I want to make a minimalistic UI now for totally artistic reasons and not because subscribing to everything is so annoying and has more race conditions than a OneD&D streamer.

[sweet silo]

i dont understand how this should work

• before the real plank was spawning where the transparent one was but not anymore :/

[odd kiln]

Hi all

Anyone know how to iterate through a structure members ?

I have a Structure with multiple Arrays in it "Array_1" ; "Array_2" etc... and I want to iterate through them

[frosty heron]

you just have to pull Array_1 and do a for loop,
then array_2 and so on

[odd kiln]

So I need to "break" the structure and do a "For each loop" manually for each array ?

[frosty heron]

sure

[odd kiln]

I can't do it automatically ? Like if I have 50 arrays..

[hollow cove]

couldnt you just make a map and put the array struct in the values

then you loop through the values and then loop through arrays

or just an array of array struct

[frosty heron]

can't do automatic, you probably should wrap in another array if they are the same element

[odd kiln]

They all are Array of Integers

[frosty heron]

then wrap them in an array

Array of My Integers

[hollow cove]

just make an array of arrays then?

[frosty heron]

that consist of array of integers

For each element of my integer , do a loop

[odd kiln]

So no need of Structure ?

[frosty heron]

depend on what you are doing

no context whatsoever is given

[hollow cove]

youll need a struct to be able to put an array within an array

[frosty heron]

I don't think that's accurate

[odd kiln]

So in my Structure I create an array

Of integers

[hollow cove]

how else would you do it?

[odd kiln]

But I need them to be "separate" by a different name

If I wrap them into one array it will be a problem right ?

[frosty heron]

well I guess in blueprint you need a struct

[hollow cove]

then use a map i guess?

[odd kiln]

So in my Struct_01 I create another Struct ?

[hollow cove]

if each name is unique

[odd kiln]

But in a Map I can set an array ?

[frosty heron]

you can but do you need a key value pair?

[odd kiln]

Yes I need an identifier for each array

[hollow cove]

make array struct like this

[odd kiln]

Because I will load these arrays and put them into each object which contains the correct name

[odd kiln]

Ok then ?

[hollow cove]

map like this

now you can loop through the map keys and values

[odd kiln]

And I can add multiple Arrays in my Struct ?

[hollow cove]

you need multiple arrays for each key or just multiple keyed values?

you can do this with maps...

[odd kiln]

I need multiple arrays of integers and each array of integers has to have unique identifier

[hollow cove]

just keep adding elements to the map

[odd kiln]

So I add my multiple arrays in the Blueprint variable itself and not the Structure ?

[hollow cove]

yes, just make the structure a single array so you can use that as a value in the map

[odd kiln]

Ok I'll try that. Thanks !

[hollow cove]

heres an example usage, idk what you're doing though

[sweet silo]

hi im trying to make a clamp of a rotation what's the right way to do it

thanks

like i dont want it to go higher than 45

or 90 here

[spark steppe]

get the current rotation, add your offset, clamp the result, and set the rotation to whatever actor/component that is

[copper chasm]

I'm doing that thing where I make something more complicated than it needs to be again - I have a top down game where I want to be able to left click to select a character or an object. I am currently doing get hit result under cursor by channel, and then from there I am casting the hit actor to character, and if is valid, storing that as a "selected character", if it is not valid, checking if it is an object, and if it is valid, storing that as a "selected object" - is there a more streamlined way to do this?

[sweet silo]

ok thanks i'll try taht

[spark steppe]

depends entirely on what you do with those selected things, 2 separate variables isn't that bad

if they are stored to serve similar logic you could use an interface (but that could also be over engineered in some cases...)

so after all it's up to you

[copper chasm]

I'm trying to keep it simple simple for right now to make sure I get the processes

[spark steppe]

if you are a beginner keep it that way

[copper chasm]

Characters can be selected and moved around, objects can be selected and then "interacted with" (interactions pending)

I'm trying to make the controller agnostic to the individual actors, I don't want to have to set up onclicked/hovered logic in each parent

[sweet silo]

but what if i want like the player to scroll back and forth between + 90 and -90 as a value with incrementations of 10 and - 10? thanaks

[silent plaza]

Hello, I'm having a problem when I want to make a transition between two cameras, between the player's camera and the cine-camera actor in Level Sequence. I've ticked CanBlend and I want to make the transition between the two cameras. I'm using the Level Sequence editor to do this, but the problem, as you can see in the video, is that when I do this I get a sort of pop when I make the transition between the Level Sequence camera and the player camera at the moment of the blend.

The two camera have exactly the same settings.

How can I remove this pop?

Thanks a lot.

[faint yew]

Hey guys I'm curious... say I've got BP actor. I'd like to reference some sort of asset UMyAsset, that would have its own settings (like a data asset) + it would have its own event graph and implement some sort of event. The BP actor would then call this event, passing itself to it.

Is there some way to do this? Point is I'd like to have both the data + the BP scripting, in one asset, and reference it from another BP actor.

[radiant wren]

If I'm understanding what you're after... perhaps a component?

@faint yew

[faint yew]

Well a component has to be attached to an actor. I really just want custom function/logic + independent parameters, all in a single asset.

[radiant wren]

Oh so you don't want to attach them? Ok then that'd just be two seperate actors that communitcate via an interface or casting, no?

[faint yew]

Well that's also an option, but again, I don't really need to spawn it. It's more like... in the BP actor, I want to have a parameter, and in that parameter I'll choose the "function" that I want to use.

Sort of like how you can choose you know, say a curve asset. But instead, I want to choose an asset that will have some data like a curve etc., but it will also contain a specific function that I'll define myself in blueprints.

[radiant wren]

hmmm... Function Library?

[faint yew]

Yeah function library is very close, but it only has local variables.

[radiant wren]

Are you able to output the results of those variables and make them variables in the other bp?

(I've never actually used a function library, I just know they exist XD)

[odd kiln]

Anyone knows how to save my struct ?

I have a "Struct_01" and a "Struct_02". My "Struct_01" contains a Map (Name + Struct_02) but I can't succeed to save the "Struct_02"

My variables are not updated

Here is a screenshot. The "Array" Output is printing correctly but my "Print String" after the "Set S Test Structure (by ref)" is not printing the correct number.

I guess there is something I did not understand

[frosty heron]

set member

that find probably returns a copy

[odd kiln]

I tried with "Set Member" node too but it's same

You mean the second "Find" node attached to the "Print String" ?

I don't know if I don't "Set" correctly or if the issue is with the "Find"

The "Set S Test Structure (by ref)" node should save the values into my "S_Test_02" struct, right ?

Or am I missing something to save my "S_Test_02" struct ?

[odd kiln]

I had to do this, you were right Map::Find returns a copy, and you’re changing that copy, not the struct that’s inside the map. After setting the members, you can do an Add on the map with the Key and StructOut (so overriding the stored value with your new copy).

Thank you very much!

[fallow hinge]

Hey guys need some input from yall. Im making an elevator BP and it has mutiple floors. It works by 2 Bps the Elevator Bp and BP elevator floor. I have the call button working and it going to select floors. But now i need help in figuring out a way to do the buttons on the inside. I want to generate them based on the amount of floors that the elevator has modularly Ive tried a few solutions including spawning static mesh as component and hiding and unhiding based on which floors are in the index. Neither worked for me. Does anyone have any input or solution that they would be able to share with me?

Ideally i want to spawn a button with interactivity that has an assigned floor value

the floors are integers

[radiant wren]

Is there a better way to control where my actor would be on a spline based on a certain speed than this? cause it gets jumpy when I want to switch the Spline it's on...

[spare sentinel]

someone know the gimbal lock?

[lunar sleet]

I'm guessing there isn't going to be an infinite amount of floors, so what's your cap?

[fallow hinge]

For the sakes of modularity probably about 100

[lunar sleet]

can you fit 100 buttons on your panel?

[fallow hinge]

I can scale the panel

[lunar sleet]

doesn't make much sense from a design perspective but who am I to judge

anyways, you can probably have 100x arrow components or w/e and just attach static mesh components (buttons) to them as needed dynamically

put said arrow components in an array so you can iterate over them.

[fallow hinge]

I dont think that is a good way to do it but thanks for the input

Possibly something like static mesh instancing based on offsets

Also trying to decide whether to have the panel in the elevator bp or have it as a seperate bp

I tried the seperate method with adding static mesh components but the arrays didnt line up and was inconsistent when adding the indexs in a for loop

So i might try to do it via the elevator bp and get the array of the linked floors and connect the indexs

That way floor 1 is floor 1 in both indexs

Instead of weird inconsistencies

[silk cosmos]

does anyone know what's up with my rotators? Every time I try to edit one of the default axis it randomly changes one of the other axis???

[mental trellis]

That'll be because it's normalising them.

Or conveting them to quats and back again.

[silk cosmos]

I swear its never done this before

[lunar sleet]

sounds like you were already well on your way to a solution so idk why you asked for input to begin with just to say "nah, that's the wrong way"

my fault for not going with my initial instinct to just let you rubberduck yourself out of it tho.

[mental trellis]

Literally always has.

[lunar sleet]

maybe they mean the normal rotation settings in a mesh details panel or w/e 😄

[fallow hinge]

No need for hostility. And i did not say thats the wrong way to do it. Theres tons of different ways to do things in games dev. I didnt think that was a good modular way of doing it. I dont know what i did for you to react negatively to me in such a way. What was saying i can scale the panel an offence?

[mental trellis]

It's still going to do it?

[lunar sleet]

we might be looking at different things here

[lunar sleet]

if I use those exact values in a SKM component's xform settings, they won't automatically normalize

[mental trellis]

He's editing a raw transform, though.

[lunar sleet]

that's what I meant by this #blueprint message

and you said nah

😄

[mental trellis]

😛

[warped juniper]

For making an actor damage collision system, would you reccomend using component tags, or using custom collision channels?

[past hull]

hello,
could you help me improve this logic for firing a weapon ? I feel that doing the enum each time a fire input is triggered is bad but I dont have other idea

[warped juniper]

Wouldn't it be better to make the smg / pistol switch once before input is read?

I don't know exactly how your firing system works so I can't fully judge this... But enums are basically a form of branch

[past hull]

I dont really know how I could do that

[rich locust]

most cursed thing i've ever done)

[mild ice]

if it works no shame

[rich locust]

it wasn't needed in the end, but it looks super cursed)

[mild ice]

2 spooky 4 me

[old cypress]

Is there a function or event that is called after all EnhancedInputComponent inputs but before AActor::Tick?

[faint pasture]

What about it?

[faint pasture]

Pitch and roll beyond 90 are meaningless

or rather, there are infinite euler angles that corrospond to the same rotation in space

Don't directly work with euler angles if you're doing something outside their scope.

[gentle urchin]

Cant you scale and fix the elevator based on a defined floor amount? It doesnt really need to know about the floors, only a generic floor offset for the locations. As for the buttons thats mostly just a forloop with offsets based on regular grid setup x/y coordinates

[fallow hinge]

Its not working off of a generic floor offset as it gets the location of the Elevator floor actor

so it practically could be used effectively to load level streams

I have the movement and everything perfect i just need to set up the buttons which im in the middle of doing right now

[gentle urchin]

So the only thing remaining is the interactive buttons for the different floors?

[fallow hinge]

mhmm

I have the call buttons sorted in the elevator floor bp

[gentle urchin]

So a for loop then

[fallow hinge]

the forloop method was what i origionally had

but for some reason it was inconsitent with setting the right indexs

i have it in the right range

[gentle urchin]

Sounds like code issue

Practically it will work

So just gotta allign the code output with the world data , so to speak

[fallow hinge]

In theory that was my conclusion aswell

[gentle urchin]

Floors should be designated an id sorted by their Z

[fallow hinge]

They are

0 is ground and top is last index

[gentle urchin]

So the only thing left is the code

[fallow hinge]

This is what i had

[gentle urchin]

You want /%

Division and modulo

[fallow hinge]

Which went into that

and so on

[gentle urchin]

Index % MaxPerRow = row
Index / MaxPerRow = column

Rowoffset = rownumber * offsetPerRow
Columnoffset = columnnumber x offsetPerColumm 

Should be fairly straight

Verify code øogic by printing the given index to the buttons

If they all match up but the id somehow goes to the wrong floor, then your floor ids are messed up

[fallow hinge]

Floor Ints are pretty simple

0 is ground floor

and goes up for next floor and so on

and the assigned floor is set in construction script

Cheers for help man im gonna try that in practice tomorrow morning

[gentle urchin]

Id be more comfy with finalmfloors evaluated at beginplay / runtime personally

[odd kiln]

Can I get only the first 3 items of an array which contains 10 elements?

[gentle urchin]

Sure

For 0 to 2 do....

[odd kiln]

So For Loop ?

[gentle urchin]

ForLoop (start index = 0, end index = 2)

[odd kiln]

Then I want to set these 3 items in another Array

I need to add them, right ?

[empty marten]

Hey peeps,
Can someone please explain to me when its best to use a Macro in a blueprint? Some peeps say not to use them but what's their general purpose?

[dawn gazelle]

They are useful if you have duplicated code that also needs to be latent, or if you want to use wildcards of variable types in some way. If they don't need to be latent in any way and you don't need to use wildcards, then you're generally better off with a function.

[odd kiln]

Thank you all!

[ashen jungle]

Hello
Could someone help me with spawning actors?
I was trying to spawn one actor
If an enemy go into sphere collision range and move the actor to the enemy but i dont know how spawn the actor and move the actor like that

[empty marten]

Thank you.

[scarlet pewter]

Hey there! I just wanna check that this is the right space for help with blueprints? Essentially I've been following a tutorial by CodeThings to create a door similar to Resident Evil where it opens partially then opens fully and should then close behind you. I've rewatched it many times and can't find the issue.

Essentially the door will occasionally open towards the player (should be away) and when behind the door it will partially open towards the player (wrong) and then open properly. I believe it has something to do with the mathematics involved, but its quite simple and I can't figure out what the issue is. I have a blueprint I can send of the door, the tutorial and a video showing the issue, I just wanted to make sure this is the right place and I could really use some support with this. Thank you!

(and the door doesn't close behind the player which is also not helpful lol)

This is the tutorial I followed: https://www.youtube.com/watch?v=ARtaj0dAE20

This is my blueprint: https://blueprintue.com/blueprint/-eeyxqmf/

This is the issue:

[zealous zenith]

Not sure if this is the right tab to ask this in, but why is it that waterbodylake does not change my character movement component mode to swimming? If i set water volume to true, then I can swim, but shouldnt being in the water change this? I saw some tutorials that choose flying mode instead of swimming for swimming. So they are flying in the water and doing a swim animation, but I am not sure what is best.

[lunar sleet]

Things don’t happen automatically. Change your movement type as needed

Whether that’s swimming or flying depends on what works best for your use case, so try both

[fiery swallow]

Additionally, the engine assumes almost nothing about your game. As far as the engine is concerned a pool of water means absolutely nothing. You have to write your own logic

[rich locust]

speaking of, i might need a little bit of an assistance
i've encountered a problem, i made a custom pawn with similar capsule basis, but, for some reason, it doesn't register any direct damage, like Pain causing volume and such, since capsule is just a component it can't directly bind events on "on damaged" and pawn actor itself outputs 0

[zealous zenith]

i set movement mode to swimming on event begin play, but it instantly changes to falling or walking upon touching ground. cant seem to get it to stay swimming

[proven moat]

Hi, I am trying a basic scenario with UI widget Bowl button, when clicked the ball will attach to character mesh and detach with physics and impulse like regular throw but I am facing issue when I try to reattach the ball, yes I disabled physics and collision but in outliner it's showing it's attaching but in gameplay it's stay at first time thrown location. I tried and verified everything. Please help. This is my last option.🙂

[fast compass]

If i have a character that I am trying to manually lerp the position of, it will keep trying to stick to the ground or the navmesh. I am trying to lerp it on top of a table for x amount of seconds, and then back to the ground. I assume I have to disable something on the character, controller or whatever but I cannot figure out what.

[frosty heron]

when interacting you can check which direction the player is at relative to the door with a dot product. Based on the dot product, you can inverse the problematic rotation

[heady lantern]

Anybody have an idea why this Bind Event is working inside of a HUD Blueprint:

But this one isn't working inside the Game Instance:

Here is the call from the button on a separate widget:

[versed sun]

Start Hud doesn't yet exist on the Game Instance's Init , add a delay before the cast

[heady lantern]

That doesn't seem to work either

[frosty heron]

ofc, your reference is never set to begin with im 100% sure

and that is also a redudant casting

read the warning

casting is just a type check

[heady lantern]

I followed the docs for casting. The note says Drive HUD Reference is already a Drive HUD, but if you disconnect it, it get's an error. Regardless, the others function with the same note.

Should I be getting the reference variables from the BP_HUD and using them in Game Instance?

[frosty heron]

@heady lantern 100% you misunderstood what casting is for

also regardless you need to set the reference

[heady lantern]

Running code as the target object, no?

[frosty heron]

you are assigning a pointer to null

[frosty heron]

please look into what casting is about

ain't no way you get these idea from anywhere

[heady lantern]

Ok bud.

[frosty heron]

You are casting an empty variable, then assigning that empty variable to it self

[heady lantern]

Way to make someone new feel stupid and put them off from asking questions.

[frosty heron]

where do that even come from

[heady lantern]

Your attitude. It's not pleasant, lol

[frosty heron]

some people don't like being told they are doing the wrong thing I guess

[heady lantern]

That's not what I'm talking about at all.

[frosty heron]

even tho that's just a fact and the info they need to fix their problem

[heady lantern]

It's the way you belittle while you do it.

[frosty heron]

you are doing the wrong thing

what do you want me to say

[heady lantern]

I'm well aware.

That's why I asked for help. Not condescending bs.

[frosty heron]

U were given help

you are given direction to look what casting is

[heady lantern]

Okay pal. I don't care to argue.

[frosty heron]

but no, I guess just be lazy

[heady lantern]

Lol, now I'm lazy?

So helpful.

[frosty heron]

seems like you want a spoon feeding at this point

[heady lantern]

Not at all.

[frosty heron]

Uses cast wrongly, told to look what cast does -> gets offended

[heady lantern]

Not what happened. Offended by the attitude and the belittling, not by the "advice" lol

[frosty heron]

rather than fighting help, go fix your problem by reading the part where you are struggling with

saying you don't understand what you are doing is not belittling

[heady lantern]

You're an asshole, lmao.

[thin panther]

Yes, that cast is pointless.
Casting is a type check, seeing if a general reference can be more specific (I.e. Is this Actor a DriveHUD), if yes, let me treat it like one.

Disconnecting the casts is the right move, however you still want to check validity of the object. The error you'll be getting is because the references you are casting are null, i.e. you're not setting them anywhere.

I'm sure you can deduce that this means you need to set them somewhere :P, either by grabbing the reference when it's spawned and saving it somewhere easy, or a couple of other methods. (If this DriveHUD is a widget reference, you may want to consider having the HUD class own all of these, as it's a nice easy globally accessible, per player, non replicated container for widgets)

[obtuse oriole]

why can't I set the members?

[gentle urchin]

Are they otherwise blueprint writeable?

Are you in some const function?

[zealous moth]

In a packaged build, my spawned AI is somehow not at the same height as my PIE levels and off by quite a lot

This is packaged

Z is positive 40

in PIE, it's -50 as it should be

the problem becomes that the unit is not touching the ground and cannot run the AI move script

anyone has any ideas? :/

[gentle urchin]

Not sure why its offset but

Force it to the ground on beginplay? 😆

Wouldnt they fall down tho? Gravity and all?

[zealous moth]

so i did more tests in PIE and I'm confused

the ground is at -50

the values you see up there are the AI target locations

but the AI is actually set to 40.149

and I replicated this while having its location shown on tick in PIE and in the packaged build

so for some reason, in build, the Z location is set to something other than the ground

[gentle urchin]

Tried to just force them ?

[zealous moth]

this is another instance of the packaged project AI just doing weird stuff

[gentle urchin]

Beginplay -> trace downn-> set new location

[zealous moth]

packaging it now to test 😄

[gentle urchin]

Ive seen issues with nav mesh generation in packaged

Had a few of those myself

[zealous moth]

I am wondering if it's the target location Z that is the issue

trying to force the AI's Z on it

[gentle urchin]

Try without the z overriden

[zealous moth]

so if i force it, nope, doesn't work

gonna try with a value of -50 as target

[zealous moth]

which part?
I tried:

• force on tick the location to -50, the slime is under the floor
• leave the slime as it is: slime is at 40 and tries to find something at 40 but the nav mesh is at -50
  I'm trying not to force the nav point to always - 50

[gentle urchin]

Got baked navmesh?

Using recast?

[zealous moth]

also didn't work

yes

recast

it's a maze that is proc gen and I recast the nav at runtime

[gentle urchin]

Dynamic nav then

Not from invokers only i suppose

[zealous moth]

invokers never worked for me, even in PIE

@gentle urchin

did i tick something wrong? it was always dynamic

[gentle urchin]

Sorry, had to fix a dirty job. My A.I hasnt gotten the potty training set yet

Settings look fine to me

Does anything nav related work?

[zealous moth]

in PIE yes but I haven't tried a static nav mesh

I could

[gentle urchin]

Wont work with proc gen tho

[zealous moth]

it wont?