blueprint

[dark drum]

If I have another BP called BP_ItemManager, that would show up to.

[main lake]

Then you would need to have a prefix to solve that issue like MGR_Item (for ItemManager) and Item_Rock, and in the filter you put Item__ so it gives you only things starting with "Item_"

[undone bluff]

if it's manageable you could manually exclude those

-BP_ItemManager

[dark drum]

Yea, that might not be a bad option.

[heavy lynx]

My post got drowned in the others... Anyone can help ?

[undone sequoia]

guys when I have mesh model and i want add on it another thing how?

[remote meteor]

if you use a spline, you could get location in spline by distance

Distance += Speed * DeltaTime

[marble yew]

Is GameMode blueprint set to specific level or all levels have same ?

[remote meteor]

there is a project based setting, and overrides per level

[heavy lynx]

That is what I do... Increment = Velocity*DeltaTime

[deep ginkgo]

I have a player blueprint that cannot be compiled because of it not inheriting from the character class properly, how do resolve the issue?

This happened after porting the project from 4.24.3 to 5.1.1

[dark drum]

Have you tried reparenting to the character class?

[deep ginkgo]

yes, but nothing happens

[dark drum]

Do you have duplicate components in the components list?

[deep ginkgo]

no

I managed to reparent it to the character class which fixed the components, but now launching the editor will crash it when it is loading and at 90%

[lusty hedge]

it works but it feels wrong

there must be a better and more intuitive way

[thin panther]

add control rotation?

[lusty hedge]

i mean with the event tick

[thin panther]

input axis is already a ticking event

[lusty hedge]

it doesnt work

if i plug in input axis

[thin panther]

just look how the templates handle rotation

because it does in fact work with input axis

[lusty hedge]

templates?

[thin panther]

the project templates

[lusty hedge]

this is my own project

[thin panther]

and?

you can still look at the project templates

third person, first person, etc. etc.

[lusty hedge]

oh i see

but those are rotated with a mouse

i rotate with a keyboard

[thin panther]

it's the same principle

[lusty hedge]

okay ill check it out

wow thats SO much better

[thin panther]

:P

[lusty hedge]

lol

how do i control speed here?

[thin panther]

For the basic stuff you can't go wrong looking at the template things.

[thin panther]

Apply some function to the Axis Value

[main lake]

multiply axis value with your speed variable

[lusty hedge]

i thought it could only take 1 or -1

nvm i see now

the Val

[craggy star]

I'm pretty new to UE5 and I'm trying to make a toggleable ragdoll but it doesn't seem to work, it freezes my movement when I untoggle it, any ideas?

[frosty heron]

When you simulate physich the mesh will be detached from capsule comp and you will also lose control of its movement

[craggy star]

It was like that before the set relative rotation, I only added it to make the mesh upright when ragdoll is untoggled, I only added it to try to fix the problem

[craggy star]

ah

[craggy star]

Is there any way to fix that?

[frosty heron]

You prob want to download advance locomotion system they have rag doll feature

That let's you get up again

It's free in market place

As in you can look how they do it

[craggy star]

oooh

many thanks

[jaunty solstice]

Is anyone aware of any good , artist centric, Open or MIT licensed Editor Utility Widgets, ie on github or elsewhere?

[mild tangle]

Good morning you wonderful people, I am working on my project and have stumbled across an issue that has me stumped. I am making a 3D game where a small portion of it is 2D. For one of my actors I wish to change the scale at runtime though I have been using billboards for this type of actor. How would you go about doing this so that this actors scale can be changed. I am thinking switch to a plane and just paste my texture on the front of it and call it a day

I tried to scale the billboard but i dont think that works and google came up with nothing

[undone bluff]

yea that is not a good usecase for billboards

[mild tangle]

thank you for the confirmation

you are much appreciated

[wispy violet]

hello i have a problem when i want to creat a sprint for my character, when I press Left Shift my character si bugging he don't run but it's jerky did you know why ?

[undone bluff]

use started, not triggered

triggered fires every frame

[wispy violet]

I will try

no

i put this but it's again jerky

[undone bluff]

just to be clear, you are not doing anything with replication, right?

because if you were to set the max walk speed on the client but not on the server it'd result in said jerky movement

[wispy violet]

how i can put it in the server ?

[frosty heron]

So u r doing multiplayer?

[wispy violet]

yea i try

[frosty heron]

U will see a world of pain

[undone bluff]

just fyi changing movement speed in blueprints with replication doesn't play nicely

[frosty heron]

U get rubber banding because the server correct your location since in the server the speed is different

[undone bluff]

for now just look into replication basics to get a general grasp on things

[frosty heron]

Server is the truth, so when you try to walk faster or slower than the server. It will correct the location

https://m.youtube.com/playlist?list=PLXJlkahwiwPmeABEhjwIALvxRSZkzoQpk

For more info

[wispy violet]

i'm following this tutorial but i thing there are things wrong

https://youtu.be/2zqnlQBGDPw?si=VJZ-Uwbzi3IwlbXa

[frosty heron]

Many tutorial for multiplayer in youtube are fake

If it does sprinting in blueprint that's already fake

Many of them mask what don't work by not applying lag

The tutorial I sent works and how it should be setuo to work with cmc

https://m.youtube.com/playlist?list=PLXJlkahwiwPmeABEhjwIALvxRSZkzoQpk

[undone bluff]

I don't think this tutorial advertises itself as anything for multiplayer

[wispy violet]

i do'nt know

[undone bluff]

what I've seen of the blueprints are clearly set up for singleplayer use

[wispy violet]

just i try to understand many things by the way of this tutorial but maybe i do somethings wrong and i put it in multiplayers

[undone bluff]

It's really not a great idea to start out with a multiplayer game, it makes things a lot more difficult

[wispy violet]

ok

i will try something else

[undone bluff]

good luck!

[fiery anvil]

Can anyone help me with whatever is happening to the floor (random black spots out of nowhere after building scene)

[undone bluff]

#lighting ?

[fiery anvil]

Sure

[heavy lynx]

I really need help with Delta Seconds... I have 3 constants, Gravity (-9.8), Friction (0,99915) and Mass (2,3) and I'm trying to calculate a Velocity consistently and independently of fps... My math returns the same no matter the FPS, but when multiplying the result (Velocity) by Delta Seconds, it's all wrong... Should I multiply something else by Delta Seconds or am I doing it all wrong ?

[marble yew]

how to create persistent variable that will survive loading another level ?

[undone bluff]

that's what the game instance is for

[edgy ingot]

You store your variable in presistence object. (Game instance or game instance subsystem)

[marble yew]

So i have to create custom GameInstance where i can assign it ?

[undone bluff]

project settings, Maps & Modes

[marble yew]

Thanks, can i access GI from anywhere? Is it global ?

[edgy ingot]

Almost everywhere

Not for editor utilities for obvious reason

Use get game instance node

[marble yew]

Thanks

[dark drum]

You multiply the change in value by delta time. Looking at the BP you shared, you're multiplying the speed itself. (velocity as you call it which is confusing as velocity is normally a directional vector with magnitude 😉 )

So you would so something like this:

CurrentSpeed = CurrentSpeed + (Acceleration * DeltaTime)

How you determine the rate of acceleration would be based on your other vars such as mass, gravity and friction.

[dark drum]

As a little heads up, the game instance loads before the level does in a packaged game. When playing via the editor, it's normally created afterwards so just be aware of this if you're trying to do anything on begin play in the game instance.

[marble yew]

is there way to check if level is loading or is loaded ?

[dark drum]

Whilst people have already mentioned the Game Instance, sometimes it might be better to use save game objects if data needs to be saved anyway.

[marble yew]

event construct is not accessible in GameInstance ?

[edgy ingot]

Use event init

Depending on what u want to do anyway

What possibly u want to do at the time of game instance creation?

Your world would probably not even ready

[marble yew]

nothing yet, just want to put that comment about level loading there 😄

i just want variable for now

[marble yew]

By packaged game you mean literally compiled game without editor ? Or standalone Game in this menu?

[dark drum]

Compiled and standalone.

[marble yew]

OK, thanks

[edgy ingot]

Cpp

[heavy lynx]

So I tried what you said and for some reason it doesn't work :/ So I tried simplifying the code a little, this is pretty much the same code but in one block... For now I use what I called Velocity as the Increment, it makes the math constant across FPS but the train, since there is less tick, updates less... If I multiply my "velocity" by delta seconds I would be back to square one

[chilly plover]

What object do I need if I cast to a widget blue print?

[dark drum]

You're pretty much doing the same thing as before. You need to multiply the change in speed (acceleration) by delta time not the speed itself. This multiplied value is what you then add to the speed on tick.

[heavy lynx]

That is what isn't working, you're telling me I need to multiply the result of the friction math to the velocity ?

[steady night]

whats the difference with TIme / Initial start Delay ?

[thin panther]

Time is how often it should trigger, initial start delay is the delay before the first trigger

[steady night]

but if i put 4 in time and no loop then it dose exactly the same thing as putting a 4 in initial start delay ?:/

[thin panther]

Yes, it's mainly a feature for looping timers

[dark drum]

Start by calculating the acceleration amount. This could be 1m/s or 20m/s this is what you then multiply by delta time and add to current speed.

If the initial speed is 50m/s and the acceleration 2m/s you would do 50+(2*delta Time) this would mean the speed would become 52m/s after 1 second. (Assuming acceleration has remained constant)

[steady night]

ah ok

[dark drum]

Adding to what tea said, you would use it with the delay variance. This allows you to have a looping timer where the time between calls varies. (Randomness)

[steady night]

ahh thats usefull

[abstract locust]

what would be the best way of creating a assassination from above like dishonored does.

[dark drum]

It's hard to say specifically but I would imagine motion warping would be very useful to help line up the character in mid air.

[celest trench]

Is it possible through blueprint to change the gamemode of a level before you travel to it

[remote meteor]

you can use the options Game= parameter, when using OpenLevel

the format for specifying the game mode i dont quite remember

[celest trench]

Due to my multiplayer implementation I am using a console command node to server travel. I'm not sure I'd be able to use the open level node

[steady night]

hey another question when i retarget animation to this character this happens ?

[lofty rapids]

Why does this not set the character velocity, and he keeps moving in whatever direction he was going ?

[dark drum]

As a complete guess (based on an issue I've experienced) it could be weird rotation on the bones. IE there not facing the right way.

It's probably best to ask in #animation though.

[steady night]

hm

[lofty rapids]

https://streamable.com/jifu7w

i set the velocity to zero zero zero

so i'm not sure the issue

[undone bluff]

are you destroying and creating a new character?

[lofty rapids]

no

just moving it

[lofty rapids]

^

[neon lion]

in an animation blueprint, whats a good way to pick one animation at random from several options? I've managed to do this with Blend Poses by int, and random integer, but the ABP compiler gives me a warning about thread safety on the random int, so i'd like a better way

Node Blend Poses by int uses potentially thread-unsafe call Random Integer in Range . Disable threaded update or use a thread-safe call. Function may need BlueprintThreadSafe metadata adding.

[versed sun]

i think Stop Movement Immediately

[steady night]

also

https://gyazo.com/f1b42cb6a88344343790192f26aa0a2c

why is my UI widget showing up like this when in editor its all fine O.o ???

[lofty rapids]

tried that didn't work

[cold lion]

Hi I have been stuck for about 2 weeks on this and I can't seem to figure this out

Blueprint Runtime Error: "Accessed None trying to read property CharacterMovement". Node: Branch Graph: Handle Enemy State and Calculate Degrees Function: Execute Ubergraph BP Base Enemy Blueprint: BP_BaseEnemy

It won't let me change the charactermovement or anything I have really no idea what to do I keep getting this error yet if I copy and paste my enemy in it functions fine but making a duplicate or child does not work, am I missing something? the rest of the code is just making the 8 way sprites trigger and rotate correctly.

I don't know if I am just stupid or missing something

[lunar sleet]

It’s a common UE 5.3 bug. You need to either readd the CMC if you added it manually or remake that character bp

[cold lion]

thanks I will give that a shot what does reading the CMC mean, I just created this from the character class

[lunar sleet]

Delete the component and add it again. It won’t work if it came by default with the char class hence the second solution

[kind estuary]

How do i make a world object spawner that works in the editor? Like those of the map editors? So in game when i spawn trees by clicking on the floor (get hit result, pow, building).
How do i do this in the editor?

Must be something to do with the Construction Script, right?

[cold lion]

I cannot delete the character movement so I have to remake this correct?

[lunar sleet]

Yes

[cold lion]

thanks

[lunar sleet]

You can’t use spawn actor inside the construction script. They disabled that for good reason (it would spawn them ad infinitum)

[kind estuary]

yup, so how am i going about this?

[lunar sleet]

Not sure, maybe look into blutility or w/e they call that now

[kind estuary]

i need to spray trees in the editor map level

[lunar sleet]

Foliage?

I think that allows you to do that

[kind estuary]

Okay will go for that first

[lunar sleet]

You might need to make your own solution in cpp if blutility doesn’t cut it

[kind estuary]

Though id like to be able to kind of recreate it myself in BP somehow

[kind estuary]

Im looking now at Brutility and looks better. More control over what i want to do

[twin shale]

Where does everyone keep code to equip an item to the character? Right now I have it in a custom Actor Component, but I'm thinking of moving it to the Item objects. Not sure where the most efficient place is, equipment touches a bunch of systems so I feel like it could live a few different places.

Each piece of equipment can change how it equips, and each skeleton can equip something differently. So there's going to be a lot of abstraction

[earnest charm]

Am I using branch correctly?

[versed sun]

I would have the code for Equipping the item in the Character

[twin shale]

Okay that's where I have it now, I'll just rework it a little because I don't love the way it currently works

[ember lichen]

So this is my random actor spawner to spawn the tiles of a certain array, but I can't seem to figure out a simple way for it to output 100 (or any number really) for the first spawn, then the random tile 0 or 1 for the rest of the time. Any help?

[versed sun]

thats where Interfaces come in handy
If each different type of Item's component has the Interface , you can do common actions to the Item like Equip , UnEquip, Drop, Fire, Reload etc..

[versed sun]

Start the array with only the number you want in it
After your done spawning first time, DoOnce>Clear the array>Set array to what you want for the rest

[twin shale]

Yeah I do something similar but with components. I kinda hate the workflow of interfaces so I use them pretty sparingly. I prefer inheritance if I can swing it

[versed sun]

yah, i wish the Interface graph wasn't Read Only, would be nice to have a default function setup

[twin shale]

Tell me about it. And don't make me travel to another window to set up a new interface where I have to keep swapping back and forth to see what data types and names I need. Maintaining them and removing outdated ones is also a nightmare

I mean they're super useful...When I want to deal with them lol

[versed sun]

and let me add Variables to the interface

[dark drum]

I would probably put it in an inventory component. I feel like equipping items is just moving items to a different part of the players inventory. With some event dispatchers, you could have the character (if the comp is on the character) handle the visual side of things. There's not really a right way, just what feels best for your project that helps it mesh with other things it needs to.

[versed sun]

it is a little clunky

[dark drum]

I wish that was an interface equivalent for event dispatchers. There's been a few times I felt this would be useful.

[twin shale]

I started with them in the inventory component but then during a item equip I have to set the hotbar references, add GAS abilities and effects, alter several mesh components, to add optional abilities into a catalog, hide other meshes, perform color adjustments for the materials, and a bunch of other junk. I ended up splitting all that functionality into different components since my inventory was sitting on the Player State and I definitely didnt want all that code in there. Now I kinda have Inventory with RepNotify set to everyone and then each component grabs the update from a dispatch when they receive the update. I kinda wanted to streamline it more and just grab the Item object and call like...Equip function with a pawn reference and then forget about it

[earnest charm]

I want to cast to a light called DeskLight, but I don't know how to cast to lights properly, can anyone help?

[celest trench]

Is it possible to create a map of a value to an array of values? For example, map a string to an array of player controllers

[spark steppe]

no

only workaround is to wrap the array with a struct

so you have a string<>struct map and the struct contains the array with the playercontrollers

[celest trench]

Sad 😦
Thanks for the info

[surreal peak]

You need a reference to the Light Instance. Check the pinned messages of this channel.
There is a 2 hour video from Epic, bit dated but still relevant, that helps with this.

[lofty rapids]

^

why is it carrying velocity if i set it to zero ?

[ember lichen]

Thanks so much!

[digital valve]

hi everyone im struggling to figure out some hud logic in blueprints off a multiplayer replicated player controller. Maybe someone can see what im doing wrong?

In the first image i try to set the visibility of a widget directly by calling it but it always comes up none. I had the same problem with button functionality on turn pressed show too and setting text of certain widgets.

The second image shows how i managed to change the text of the widget but that doesn't work for the visibility or refrencing the button pushed

[solid vault]

can someone tell me why this isnt working

[wraith basin]

Hello, I'm trying to adjust the size of a mesh whenever I use my scroll wheel. I've tried using "Set World Scale 3D" in order to make the change, but I think I'm on the wrong track because I can't get it to work.

[solid vault]

im trying to move the ball to the player

[versed sun]

Is Speed set to something not 0 ?

[solid vault]

it is set to 5000

[faint pasture]

What would that look like? I don't really see how it would be any different.

Would the dispatcher call an interface function on the bound objects?

[dark drum]

How I thought of it would you be able to call the bind to event and plug any actor in it. The only difference to the standard bind to event is it would have a bool return value that states if the bind was successful.

This would be useful as you wouldn't need to type cast to the specific BP to make the binding.

If the actor with the interface event dispatcher then calls the interface event dispatcher it would trigger just like a normal event dispatcher would.

The use case I had was for making more reusable UI widgets.

[ember lichen]

What's the best way to update the array with new values? I tried to append them, and to set the defaults, and just set the array but all of those resulted in the index still being 0

[faint pasture]

what do you mean by "the index"

the last index?

the length?

[ember lichen]

The items in my array correspond to the index for another array

Essentially, the items in the array stay at just 0, and don't update to the new values of 1 and 2

[faint pasture]

You're saying if you foreach over City Tile array after this and print the items, it outputs 0 0 0 0 0 and not 1 1 1 2 2?

[ember lichen]

Yes, it just prints out the default value

[faint pasture]

Show the code and result

[fluid lagoon]

I should also mention that the mapping context is applied to my pawn in the event begin play

[ember lichen]

It's outputting 1s, not 0s sorry.

But it's spawning Shelter, not 1

This is the other side of the SpawnActor

[faint pasture]

you are probably using the index from the random, not the value at that index

Show everything, show the input action, the mapping context, and how you're applying the mapping context

[ember lichen]

The top pin says "The random item from this array", and it worked before I added the default system

[faint pasture]

Show how you know this is running AFTER Forest Tile Array has been changed

Print the values from Forest Tile Array right before you use it

[ember lichen]

Alright

[faint pasture]

I 100% guarantee it's not a bug with the engine's handling of arrays, your code has a problem somewhere

[ember lichen]

With the loop right here it just prints out 0s

So I must be updating the array, then setting it to default each time this is called

[faint pasture]

show more of the code, is this in a function?

[ember lichen]

Could it be because the do once node is running once per function? But I don't see why this would reset to defaults

[faint pasture]

just zoom out and show all of it

this is like trying to fix a car looking through a straw

[ember lichen]

The switch being 0 just goes to an identical set of nodes but I have it set to only 1 to debug right now

[faint pasture]

is forest tile array a function variable or an outside variable?

[ember lichen]

It's a function variable

[faint pasture]

that'll be default every time the function runs

[ember lichen]

Ah that would do it

[manic onyx]

any ideas why my random stream isnt reseeding whenever I hit play ?

[fluid lagoon]

Never mind, the hands have stopped tracking again fml

[noble ledge]

Has anyone ran into an issue where the breakpoint was being skipped in a loop?

like if the loop has 100 iterations, it will break on the first and then skip the breakpoint on the other 99

[modern skiff]

at a quick glance, you are just getting the world scale then setting it to the same value... you are not modifying it

[lusty hedge]

question for timelines: does the "Finished" output mean the timeline went all the way to the end? or simply has stopped running. ei: Stopped

One more thing: why are there different kinds of nodes for the same thing?

[undone bluff]

yes it means the timeline reached the end of its length

[sudden egret]

How can i make it so i can use SpawnActorFromClass inside a static BlueprintFunctionLibrary function? I used to be able to do it in older versions of UE

Spawn AIFrom Class works as a function, why is that different

[marsh pilot]

I'm having a bit of a frustrating issue. Why is this character not spawning underneath the cursor? I'm trying to have it so it spawns similar to raycasts in Unity

[undone bluff]

you are using the wrong function

try Get Hit Result Under Cursor by Channel

[marsh pilot]

That explains it. Thank you!

[lunar sleet]

FYI in other situations the raycast you’re looking for is called a line trace in UE

In case you ever need to trace from something other than the cursor

[thin panther]

If you're also coming from unity check the pins in #ue5-general and take a look into the C++ side of things

[celest tangle]

Can you use the same timeline more than once at the same time? And/or can you create new tracks for a single timeline in-game?

[lunar sleet]

If you put it in an event and call the event sure

You can add more than one track inside a timeline

[ocean crow]

Trying to get chests (containers) to work properly, currently works fine in single player, but when a client opens the chest it is empty. Im guessing it's to do with how im initializing it here, but is there something obvious im missing?

[visual crest]

How expensive is this?

This works but if the player saves and loads during a skill they can get permanent hyper-armor and stack it lol so I want to auto remove it any time a ability is used

But if it's expensive then I may need to find a way to address it another way.

[warped juniper]

Hey so... I'm working on an item pickup system

But it's getting complex quickly, and I feel the tutorial I'm following just isn't gonna make the cut onwards

[edgy ingot]

The inventory system can be complex depending on the project need

But the pick up it self should be straight forward

[edgy ingot]

You have to think what code should run on the server and what code should run on the client.
You also need to think whom will hold the information (server or client)
Eg. You can let client does the sfx and opening anim but the result and the item drop should be handled by server.

The fact that you have overlap even there w.o switch already pose a problem since the code will run both on server machine and client machinr

[ocean crow]

so like where and how should i initialize chests? is it good to do it on the chest bp?

[edgy ingot]

What does initialize do?
What does the client has to know or keep? Its a multiplayer game. So think about how you want to distrbute items. Do each client have their own loot? Or if the chest is opened then it belong to that player?

If the loots are shared, meaning that when a player opened a chest it opened for everyone. Then client doesnt need a single info or for the chest to be initialized in client

Client sinply request to server that it wants open the chest

Server will catch the first request and open the chest and give the item for that player

[dawn gazelle]

I'd imagine based on the name it allows you to change how much a mesh transforms based on bone movement. Check your log - there are warnings that function throws if the correct amount of weights are not provided.

[crimson saddle]

Here's a fun performance question.
I have two potentially very large string arrays that I would like to compare, one of them comes from an actor and I need to iterate through all actors of that type. Would it be faster to:
A. Convert them to Sets and then use the Set compare operation
B. Make nested for loops comparing the two

[edgy ingot]

How large is large?

You can profile to find out but i really doubt you even need to optimise comparing strings

If you havent lose fps, dw about it

[crimson saddle]

Could be hundreds of items each.
I definitely lose fps due to the amount of nested loops I end up with.
I check something like 200 actors for their string arrays, and I then compare them to a smaller array of structs containing more string arrays.
So the logic isn't hard but the iterations of those loops gets absolutely massive. If I'm not mistaken estimating nested loop operations is like X^Y^Z^... so it's big and does not feel very scalable to me

It's not like I run it every frame or anything dumb, but it's definitely a major lag spike and I very much worry about quickly hitting the infinite loop detection in larger scenarios.
I have actually already run into it in stress testing

[supple dome]

you shouldn't compare strings in the first place

any practical reason for it to be a string

[crimson saddle]

Very curious to know why strings are bad

[crimson saddle]

I use them as tags and keys for many different things

[sonic crest]

^^

[supple dome]

its slow, FName was a type created just because strings are slow for comparison

just make those tags and keys be FNames

[crimson saddle]

Can they be replicated?

[supple dome]

very large string arrays
very large arrays or very large strings?

[supple dome]

FNames are replicated as strings, then converted back to FName before comparison

[crimson saddle]

Large arrays, and comparisons that are requiring nested for loops which are bad

[supple dome]

should be fine if they are FNames then

blueprint loop overhead should be bigger than the actual comparison between FNames

[crimson saddle]

What compare functionality does fname have that string does not?

Can it bypass any of my annoying looping like comparing arrays more directly?

I know sets do some magic but they can't replicate

[supple dome]

that is still done, but its orders of magnitude faster when doing a equals check

[crimson saddle]

Huh

[supple dome]

The == operator can be used to compare two FNames, and returns true or false. Rather than doing string comparisons, this compares the values in Index, which is a significant CPU savings. ```

[crimson saddle]

I'll have to give it a try

It will require big refactoring of a lot of bp

Is there any way to reduce the general bp loop overhead?
I'm really not qualified to be attempting cpp stuff in a production setting, though I know cpp is the best answer.

[supple dome]

not really, every BP node has a small overhead to execute, this will sum up within a loop, nothing that can be done

Just make sure you actually need to nest it

[crimson saddle]

Are there any drawbacks to FName? Is there a reason to use strings at all when it exists?

[crimson saddle]

I can't think of any other way to check a pool of actors, get their arrays, then compare their arrays to another pool of actors with arrays

[ocean crow]

When should this be called? once initially when a chest is opened or every time its opened? or just once at the start of the game?

[supple dome]

check this https://docs.unrealengine.com/4.26/en-US/ProgrammingAndScripting/ProgrammingWithCPP/UnrealArchitecture/StringHandling/FName/
FNames are case-insensitive. They are immutable, and cannot be manipulated.
They also can't be translated, and aren't meant to be shown to the player

[crimson saddle]

I don't know what immutable and cannot be manipulated means in practice

[supple dome]

Once you create an FName you cannot edit it, you can only create another different one

ie. formatting like "Hello, {Name}"

[crimson saddle]

Does that mean they cannot be created at runtime? Can the variables not be set to something else?

[remote meteor]

FName are supposed to be used mostly for "identifiers" for certain things

if you need comparison, storing them as FName helps the load

if we talk about containers

[sick sky]

does Widgets and actors have a same base parent ?

i would like to make a macro lib that can be used for both

[remote meteor]

TSet is good when there are not suppose to have duplicates and order is irrelevant in the container. also comparing between TSet is also good in performance compared to TArray compares

[remote meteor]

UObject will be their direct parent

[sick sky]

okay ty

[crimson saddle]

That is basically my use case
But I do need to add them to an array and edit it after creation

[remote meteor]

the immutable part probably will confuse newcomer, what it means is the FName data itself is immutable once created, this is because they need to be hashed.
however, you could always create a new FName and override the variable that it holds, which is what often we are doing anyway.

[crimson saddle]

Can you give an example?

I don't understand at all how that is different from setting any other variable

[remote meteor]

in FString, you would have functions like FString::Replace which directly manipulate the string in memory

FString SomeString(TEXT("This is a string.")); //This is a string.
SomeString.Replace("is", "are"); //This are a string. (in the same memory address)

in FName , you dont have these mutability
However, you could always set the variable to a new FName

FString SomeName(TEXT("This is a name.")); //This is a name.
SomeName = FName(TEXT("This are a name.")); //This are a name. (in a different memory address)

you also dont have operations like append, split, and many other. to work with FName, we often convert it to FString, do adjustments, and back to FName

though i believe there isnt alot of time you would actually need to modify FName itself. usually there are better ways to handle the situation.

[crimson saddle]

Ah I see, that definitely works for 90% of what I am doing then

[lunar sleet]

Try using EnableInput on BeginPlay if it’s not a char

And just a heads up we have #enhanced-input-system

[fluid lagoon]

Didnt appear to work, and no worries, Ill delete this and shift it over

[lunar sleet]

Are the events firing at all? Did you use breakpoints ?

[fluid lagoon]

The input events aren't firing when I press the bind, so I'm not too sure why

[hasty terrace]

https://twitter.com/DesignKoalas/status/1740447790055182771
anyone here have ideas why a groom wouldn't match the skinned mesh? I did the exact same export process for every other creature I've made for my game, but this is the only one that has issues. Using 5.3, a.k.a. a large pile of glitches

DesignKoalas (@DesignKoalas) on X

Woke up to a nasty nosebleed and emu groom skinning problems. If anyone has an idea why the fur is doing this, I'd love to hear it
https://t.co/eBoKjfDB3k

#indie #indiegame #IndieGameDev #indiedev #game #gamedev #codinglife #3D #3dart #bird #Beastking

Twitter · Dec 28, 2023, 7:01 PM

[ocean crow]

anyone know why this event wont fire? its fired from the PlayerPawn correctly, but wont fire here?

do blueprint interfaces work on actor components?

[stuck sentinel]

anyone know what is wrong ehre

[neon lion]

how do i create a blueprint function that takes a TArray of UAnimSequence* as its input?

aha i figured it out

[fiery swallow]

just set the the variable and connect nothing to it

[main lake]

if I'm not mistaking, metallic isn't an RGBA value but rather a constant between 0 and 1

[agile pilot]

Hello hello, it's looks like after i set at runtime a new SkeletalMesh asset and "Set anim instance Class", the new Animation Blueprint isn't firing the Notify from the animation. Is there something known or did i miss something ?

[agile pilot]

I just made the test i i didn't have any error after apply.

[main lake]

?

[dark drum]

Yes but you have to use the actor component as the target

[stuck sentinel]

hey

im making a shooter than shoots a football

i assigned a projectile movement component to the football

but after doing that whenever i get near the football it just dissapears

[neon lion]

what part of this is thread-unsafe?
it takes an array, returns an element from it, using a random integer supplied from a variable (which is populated from a thread safe stream elsewhere)

i ticked a threadsafe checkbox and it stopped complaining, not sure if i've fixed anything, or if there even was a problem

[undone sequoia]

guys how it is possible that my packaged game is running max on 25 fps on lower computers while other normal games run there for 60-150 fps without no problems what can cause it

"packaged game"

[surreal peak]

#profiling

[dark drum]

You'd need to profile to know for sure. It would just be a guess otherwise.

[surreal peak]

Yop, no one here can tell you

You gotta profile and improve your game yourself

[snow oasis]

I just made this Weapon Fire Toggle Ability that changes the weapons bullets from Projectiles to Hitscan and it works but when I put it into a function it no longer switches, would anyone have any idea why thats happening?

[mortal relic]

Hey I'm having a problem with my character vaulting(using motion warp)
Actually I was following the RPG playlist(Gorka Games) I followed everything, all going good

but after the character vaulting ends its just staying on walking sate and goes though other objects
Can anyone help me with that?

[tacit rock]

• Plugin 'SteamShared' failed to load because module 'SteamShared' could not be found. Please ensure the plugin is properly installed, otherwise consider disabling the plugin for this project.
• LogPlayLevel: Error: UAT: [2024.02.04-15.04.46:674][ 0]LogPluginManager: Error: Plugin 'SteamShared' failed to load because module 'SteamShared' could not be found. Please ensure the plugin is properly installed, otherwise consider disabling the plugin for this project.
  Can you help me pls

[devout beacon]

can someone help me

is it possible to save savegameobject as json in blueprints

[random pulsar]

guys i turned off collision for the capsule component of character and made another capsule for object collisions and gave it pawn preset ,but however it falls throw the ground?

[hollow mulch]

Hi, I have a post process material instance that I use in my post process volume. How do I change it's parameters at runtime via blueprints?

[random pulsar]

any idea why?

i made another capsule cuz i cant rotate that component capsule,it has only scale

[lusty hedge]

how do i find this node in the Materials graph

nothing comes up

[thin panther]

it's a param

[lusty hedge]

wait is that just a const

[thin panther]

scalar parameter i think is the one you need

[lusty hedge]

ty!

i gotta learn more about materials

[thin panther]

look into Ben Cloward

[crisp depot]

i am a blueprint beginner and this should be a fairly easy fix but i just cannot find the issue.
the tiny robot is moving forward on overlap (overlapping with a box collision in the moving platform blueprint). I want the robot to have gravity as soon as it doesn't overlap with a platform anymore so it can fall down, but when the robot is overlapping with two colliders at the same time it has gravity enabled, which should only occur when the robot isn't overlapping with any collider at all, so it stops moving

[pine mesa]

Can someone help me? I'm fairly new to UE5 and I'm trying to play this Idle Animation Montage but it's not working. What am I doing wrong?

I know the event works because the string prints, but the animation doesn't play.

[lofty rapids]

your animation is set on the character ? also what does the note say ?

[pine mesa]

the first image is in the character blueprint and how do I check what the note says? 😅

[lofty rapids]

right but you have the animation blueprint set on your character ?

hover over note, itshould say something

[pine mesa]

Yes, the character is using the animation blueprint

[lofty rapids]

the collision boxes overlap ?

i've had issues where if they are overlapping the end triggers, you are actually overlapped another one but it doesn't fire begin overlap

so you would be overlapping the second one, but the end of the other triggers, then the begin doesn't fire

[fervent breach]

is there a way to disabled Character Movement?
I have an enemy that inherits from a Character BP - it's meant to spawn clipping through a wall, but then animate itself out. The issue is that the enemy keeps pushing itself away from the wall when I place it in the editor. How would I go about fixing this?

[stuck sentinel]

help

[polar sphinx]

get text should connect to get actor, then get actor connects to return

[stuck sentinel]

how do i get a png picture into widget blueprint agian

[lofty rapids]

you need the execution to that node

[floral totem]

Hello Again, I posted last night but didn't really have all my ducks in a row to ask the question correctly. I made a short video describing my issues any insight would be greatly appreciated! ty!

[lunar sleet]

Def not by disabling char movement

Change your collision settings so it ignores the wall and the wall ignores it

[brazen pike]

On your AI perception component, everything is set up right for sight?

Also, if you put a breakpoint on "Set state as striking" does it execute?

[floral totem]

Theres are my settings right now

Here is my Set State As Striking. Im very new to this so Im not sure what a breakpoint is but I can look into that

[vale pine]

As it turns out, the GUID var in my Actor Component (which was meant to help support savable actors of any class) always reads as the Default zero value, DURING CONSTRUCTION.
The result was a shuffling of GUIDs with every construction event, even if the GUID in editor was valid/nonzero. So it appeared fine in each individual build, but when there was a new build, all the identifiers were lost 🙃
Anyways, now I have a manual button for checking/making valid GUIDs and the game will pause on BeginPlay when it detects a zero GUID

[eager thicket]

Is there a good way to juggle many different trigger volumes with their respective doors etc?

[brazen pike]

So if you click on a node, then press f9 it will create a breakpoint on that node. A breakpoint will pause the game and show you the code if a breakpoint is executed. Basically, if that function is actually ever called, then the game will be paused and you will have proof, if it is never called then the game will continue as normal

My theory is that you have "Set state as striking" and "set state as investigate" running sequentially. If it can hear AND see it, then it looks like it will set the state to striking then immediately set it to investigate

[floral totem]

The breakpoint isnt doing anything so Im assuming that means its not being called.

[brazen pike]

I see. So that means it either can't see it, OR the function "can sense actor" is broken in some way

[stuck sentinel]

this works if the actor is placed into the level, but what about if the actor is being spawned in during gameplay how do i do it

for casting

[brazen pike]

If it doesn't exist yet then it isn't going to work, not until it is spawned

[stuck sentinel]

mhm

[brazen pike]

Are you trying to avoid an error? Or are you hoping to do something else if it doesnt exist

[stuck sentinel]

is there another way to communicate to the football other than get actor of class or cast

since neither work

[brazen pike]

lots of ways

cast isn't getting an actor though, do you know how to use casts?

[stuck sentinel]

yeah

[floral totem]

Here is the Can Sense Actor Function

[brazen pike]

Try disabling the hearing, and start putting breakpoints in here

[brazen pike]

Why doesn't get actor of class work

Also what are you trying to do here? Are you hoping to have a ball get kicked, no matter how far away the player is? Are you trying to kick a specific ball? Do you need to be looking at it?

[lunar sleet]

Pawn sensing was replaced by AI Perception because it’s a better system. Use #gameplay-ai for more specialized help

[floral totem]

It is seeing actors, but it just doesn't see the bobber for some reason.

[brazen pike]

They're not using pawn sensing??

But yes, probably ask in AI

[lunar sleet]

lol mb I read that Can Sense Actor comment but it’s his own custom function 😁

[floral totem]

OK, I will repost in AI. I apprecaite your insights. Breakpoints are gonna be huge for me lol

[brazen pike]

Make sure you also post that it can't see the bobbr

[floral totem]

Will do

[stray cedar]

how to make sure that the shooting effect does not remain in one position?

[brazen pike]

it's been a while since I've done ai, would have to familiarise myself again

[brazen pike]

ah yeah you gotta change it in the emitter itself

[lunar sleet]

You might need to get the socket xform and on tick

[brazen pike]

on tick? why

it looks to me like the emitter uses world space not local space for its movement

[waxen gull]

UE4.27:

Calling Add Controller Yaw from Player-Pawn is working, however when calling from Player Controller it doesn't ... anybody knows why and how to fix it?

[stray cedar]

I tried to put on Keep Relative Offset, but the effect didn't play

[brazen pike]

In the effect itself? Or was that on "spawn emitter attached" node?

[stray cedar]

spawn emmiter attached

[lunar sleet]

Idk why that would make a diff. Seems to me like the emitter spawn location only gets updated when he first begins firing

But idk enough about emitters so maybe there’s something idk

[brazen pike]

Yes, because the emitter's origin param is set on spawn, but when it calculates where the effect is going to play it converts it into world space then uses that as a reference

need to make sure it doesn't turn it into world space

yeah the old vfx system is weird, I much prefer niagara honestly

[mental bobcat]

Hi, I could use some help with my camera system and preventing players from going out of view. I have it set up to where the camera will zoom out a max amount when the players are far apart but as you can see they can leave the bounds of the cameras view still. Most suggestions I could find online said to make invisible walls around your cameras view but that feels sloppy. I'm sure theres something with viewport nodes of some sort that should work?

[digital valve]

Why do either of these fail when trying to access my gamemode?

[brazen pike]

gamemode only exists on the server so if you're calling it on the local client it won't find anything

[stuck sentinel]

this is not working

[digital valve]

i tried doing this too to stil get nothing?

[stuck sentinel]

so this is working, but the variable isnt changing to yes or no

[mental bobcat]

you aren't using cast correctly, you need to drag off and then set your bool

[brazen pike]

Hmm you may need to ask in #multiplayer

[digital valve]

will do

[stuck sentinel]

wdym

[trim matrix]

sometimes I feel like people aren't even thinking before using bp

so strange

[trim matrix]

you are casting to nothing

[stuck sentinel]

what do i set it to then

[mental bobcat]

put the Able to Kick bool in your Third Person Character blueprint. not your Football

[trim matrix]

why are you casting?

yea

[stuck sentinel]

no because i have a collision on the football

[trim matrix]

ok but why casting then?

[stuck sentinel]

to identify the third person character

[trim matrix]

??????????

you aren't using the reference anyways

[stuck sentinel]

bro

if i dont cast to third person character

its counting the ground and the wall as a collision

[mental bobcat]

I see what you're trying to do. Instead try setting up a Player tag on your third person character then off of Other Actor do "Actor Has Tag"

[stuck sentinel]

thats what my friend told me

but it didnt work

[trim matrix]

do a: if other actor = get player

no casting needed

[trim matrix]

@stuck sentinel do you understand how to do that?

[stuck sentinel]

i fixed it

but i have another problem

[trim matrix]

can you show the code?

[undone bluff]

because no matter how many times you call the function, the flip flop is only executed once in that instance, its state is only part of the scope of the function and gets destroyed once the function is processed

[stuck sentinel]

i checked that able to kick works and turns on and off depending on if the player is overlapping or not, but here in third person character its not updating the able to kick boolean

its always false

even when i stand on the football

although i put print string and it is updating correctly

[trim matrix]

that get only 1 actor in the class btw

[stuck sentinel]

what do you mean

[undone bluff]

you need to pass in a boolean or use something other than a function, I think macros might work? collapsed graph will 100% work

[trim matrix]

why are you getting the actor of class but not using it? just delete it if not needed

[stuck sentinel]

okay

its still not working

[trim matrix]

what is the last spawned ball ref?

where do you set it?

[stuck sentinel]

object reference to the football blueprint where i have the able to kick variable

its not printing hello

[trim matrix]

2 options: the variable is false or your 'Last Spawned Ball' is not correct

[stuck sentinel]

how do i fix my last spawned ball being not correct

[trim matrix]

show me the code where you are setting the ref or wtv you call it of the last ball

[snow oasis]

Okay, so Essentially if it starts at False then is told to Flip Flop the Function only registers as needing to FlipFlop But doesnt have a reference for whether its starting true or false?

Or just it has Isolated information and cant tell what to do.

[stuck sentinel]

third person character

football

[trim matrix]

in the game, do you spawn the ball?

[stuck sentinel]

yes

[trim matrix]

ok then you must cast to it, you don't have a literal ref to it

[stuck sentinel]

okay

what now

[trim matrix]

do get actor of class**

and put the correct class in the input

[stuck sentinel]

ITS WROKGING

<333

[trim matrix]

...

[lunar sleet]

Long as you don’t have more than one ball, that crutch will work

[trim matrix]

yea

seems like there is only 1

[stuck sentinel]

yeah

once the ball is scored i destroy ball and wait 2.5 seconds and create another ball

how do i make it so the ball gets velocity in the players direction

[snow oasis]

Oops wrong Person, so Essentially if it starts at False then is told to Flip Flop the Function only registers as needing to FlipFlop But doesnt have a reference for whether its starting true or false?
Or just it has Isolated information and cant tell what to do.

[undone bluff]

the flip flop is only activated once, next time you call the function it's a new instance, the state of the flip flop does not persist between the instances

the moment the function is done processing its scope is thrown away

[chilly plover]

Do you think you should be able to run through enemy characters in fps?

[undone bluff]

depends on the fps

do what feels good

play some games and see what they do and if you like it

[chilly plover]

If they are constantly chasing you I think it's best to

[undone bluff]

that can get messy

like in cod zombies?

you'll get easily locked in a corner there

might be what you want

[chilly plover]

yea so best to make it go through

[undone bluff]

there's no right answer here, you just need to try out both

[chilly plover]

Do I apply noCollision to the enemy BP?

[snow oasis]

Okay that makes sense.

[chilly plover]

Seems to not of worked

[snow oasis]

Thanks for the explanation

[undone bluff]

lots of ways to approach this

for starters, maybe set the collision of your enemies to overlap all dynamic

you will still get overlap events you might need

[crisp depot]

yes exactly, they do overlap. I had to create a very simple puzzle game today for class and ignored that behavior for now. It works slightly different now but that's fine. I am still interested on how you fixed the issue you were facing with the overlapping collisions

[lofty rapids]

i made them not overlap

but you could run it on tick or a timer

[crisp depot]

they had to overlap in my case, otherwise the actor would have been standing still, it's just the way i made that function was very unconventional. I had to rush that "game" and my expertise with blueprint is still pretty much non existent. Still, I appreciate you for answering

[chilly plover]

OverlapAllDynamic doesn't seem to woprk

[eager thicket]

Does anyone have any luck getting Radial force to impact physics objects? I'm trying to do it, but no real luck.

Perhaps im missing a key part of the blueprint?

[lofty rapids]

you can do a thing where on tick you check the overlapping and set the gravity, so basically if your overlapping then do something, if your not overlapping atleast one then set it back

[lofty rapids]

you could also try to check on end overlap if there are any other overlapping might be more efficient

not sure how that would work out

[lunar sleet]

is the object you're overlapping a WorldDynamic object

[chilly plover]

I have the standard Firstpersoncharacter

and a BP I created with my character in it

[stuck sentinel]

guys this and boolean is weird its only counting football allowed kick and not able to kick

[chilly plover]

I applied overlapalldynamic to the top.

[lunar sleet]

you're trying to overlap the ball yes?:

[chilly plover]

No

[lunar sleet]

what are you trying to overlap then

[chilly plover]

I have a enemy character in a BP I am trying to make the firstpersoncharacter walk through

[lunar sleet]

ok

that enemy char's object type is what, pawn?

[chilly plover]

yea

[lunar sleet]

OverlapAllDynamic means Overlap all objects of type WorldDynamic

[chilly plover]

o ok

How would I do this then?

[lunar sleet]

the lazy way would be OverlapAll

but if you need more precise collision eventually you'll need to change that to Custom and just make sure it overlaps the pawn and that pawn overlaps your char

[heavy lynx]

Hello hello, I'm having a little issue finding where and how to implement delta seconds to get accurate math...

I have this function that runs on tick, that is used to find an increment to find a location and rotation a distance along spline... Speed is currently used as the increment... But I'm now stuck trying to find where to add the delta seconds

[chilly plover]

OverlapAll doesn't seem to work

[lunar sleet]

tbh if you use Overlap All it might fall through the floor lol

[lunar sleet]

collision is a 2 sided street, you need to set A to overlap B and B to overlap A

[chilly plover]

Any good videos of doing this?

[lunar sleet]

I'm sure there's videos on how to use the collision system yeah

[lunar sleet]

#game-math is prly the perfect place for this question 😄

[lofty rapids]

i'm trying to create a large array, but generating it gets into an ifinite loop

because it takes too long ?

how can i load something large that wouldn't cause this ?

[heavy lynx]

Thx

[lunar sleet]

you can always try increasing the max loop count in project settings

but I'd make sure that's the actual cause of the infinite loop error

[devout beacon]

heyyyu

can someone help me for saving save game object as json

[lofty rapids]

it's set to 1000000, and i'm trying to generate like 10000

it's getting caught up

[stuck sentinel]

yo dude

what is up with ue

[lunar sleet]

yes

[lofty rapids]

i don't think it is, it points to a place in my code that i'm generating random strings in a loop

a lot of randoms

[lunar sleet]

show code

[stuck sentinel]

its supposed to only play once it overlaps with this collision but its also playing when it overlaps with the whole net's collide collision

supposed to be this only

[lunar sleet]

you're checking for Other Actor not Other Component

[stuck sentinel]

its colliding with this collision

[stuck sentinel]

wdym?

[lunar sleet]

see the Other Comp pin?

[lunar sleet]

no don't do that lol

this is on the net?

[stuck sentinel]

yes

casting to football

[lofty rapids]

It takes me to here, which is part of a loop

[lunar sleet]

when you say "supposed to play" what are you talking about, destroying the actor and increasing the count?

[stuck sentinel]

ok look

can i call

[chilly plover]

Any idea why the preset doesn't work?

[lunar sleet]

you're probably doing it wrong or didn't hit generate overlap events

[lunar sleet]

does it say which node exactly?

and also what is calling this spaghetti ? 🙂

[lofty rapids]

it takes me to the for loop macro

[lunar sleet]

where are you calling this tho, tick or timer?

[lofty rapids]

in game instance

it's a function

[lunar sleet]

I'm curious to know as to what the frequency of this function being called is

[stuck sentinel]

Look at this video

and this is the collision its supposed to "destroy actor" with

[lunar sleet]

if you move that box to the back of the net, do you see any change?

[lofty rapids]

i run it when you click a button

[stuck sentinel]

wait i realised something

box collisions are always bigger than they seem why is that

[lofty rapids]

it runs inside of another loop

[lunar sleet]

oh so this code is all inside a loop?

[lofty rapids]

this is inside a loop inside the function, the function is also being called inside a loop

[lunar sleet]

so you have nested loops?

[lofty rapids]

yep

[lunar sleet]

sounds like part of the issue

[sonic crest]

Very odd
How's your Ball collision ?

[lofty rapids]

i can generate as many as i want on the fly but i'm trying to group them all into an array.
It's saying infinite loop and i'm not seeing how, but i'm guessing it takes to long or something ?

[stuck sentinel]

WHY IS THERE AN INVISIBLE WALL

[lunar sleet]

Possibly. BP might be too slow to handle nested for loops properly

[stuck sentinel]

IN MY GAME

[lunar sleet]

drop the caps

what invisible wall

[stuck sentinel]

sorry

1 second let me figuire this out

why is ue collisions like this

you see this collision?

it fits perfectly inside the net

and doesnt go outside

the green part i colored also somehow has the collision there

[shy gorge]

it is propably your mesh

net mesh having connecting collision between the poles

[lofty rapids]

what does the event look like ? i mean the actual node, you sure your using the collision box ?

[cyan harbor]

help why is my cast failing bp_pizzabox is a blueprint class actor

[trim matrix]

actor?

why is the input object just 'actor'?

[lofty rapids]

where do you set it ?

[stuck sentinel]

Yes I even moved the collision way up to see if it still works and it didn't meaning yeah I got the right collision

[cyan harbor]

hmm wdym sorry im new this is pizza box

[stuck sentinel]

I don't think that has anything to do with the ue5 box collision

[cyan harbor]

its a variable with type actor object reference

[lofty rapids]

that variable Actor, it's a reference but when do you set it to the one your trying to cast to ?

[shy gorge]

well if your net mesh has collision all over it and you put another collision box inside another collision volume it dont work

[cyan harbor]

cant

[trim matrix]

BRUHHH

[trim matrix]

we are talking about the input variable of your cast

[lofty rapids]

right so why are you trying to cast to that ? it's empty it will definately fail

you need to set it at some point

what are you trying to check is that bp ?

[cyan harbor]

how

[lofty rapids]

^

[cyan harbor]

check if it is actor

[lofty rapids]

hmm

[shy gorge]

you should not cast if you already have interface tho

[cyan harbor]

but i dont

[trim matrix]

you should add an input/output to your interface, actor object reference

[shy gorge]

you do?

[cyan harbor]

i am trying to cast so when i interact with my pizza it shows the pizza box

[cyan harbor]

thats a generic interaction system i made

[trim matrix]

do that: you should add an input/output to your interface, actor object reference

[shy gorge]

yes and use that when you have it and dont cast

[cyan harbor]

FIXED IT LOL

OH PRAISE

[trim matrix]

show

[stuck sentinel]

Wdym don't work

[cyan harbor]

to hell with the note

[stuck sentinel]

How else would I make it so you can't collide with the football net and have a collision box anywhere near

[trim matrix]

it's only going to work with 1 of them

and this is the worst way, why are you using an interface if you aren't even using it correctly, you should watch some yt tutorials to understand what interfaces are..

[cyan harbor]

there is only one of them

[cyan harbor]

i am its my interact system for a ton of objects

[trim matrix]

you don't even have to cast to it, you can just add input and output to the reference using your interface

[cyan harbor]

yeah but if it aint broke dont fix it

[trim matrix]

bruh

why are you using interface then lol, just cast to each object and call the event

do your thing but you should read about interface...

[shy gorge]

you can give me a call

or hop on a voice channel

[steady night]

Hey need help with some math

the basic attack is "attackspeed" around 2.8, and i want each point of dexterity to increase attackspeed by 1% there make the value less, so 10% increase would make it 2.8 10% = 2,6 ish

[lofty rapids]

anything times 0 is zero

[steady night]

xD

well yes...

[lofty rapids]

probably one thing you need is 1% of attackspeed

so i would start with that, get the 1% and store it in a variable, so you can multiply it by the amount of dexterity

[lunar sleet]

It is broke

Just drag from the return value of get actor of class if you’re using that crutch anyways, the note is pretty self explanatory, the cast is pointless here

[cyan harbor]

yea but i aint fiddling with it

[thin panther]

https://tenor.com/view/why-persian-room-cat-guardian-but-why-trendizisst-anyaboz-gif-2156104475561014590

[lunar sleet]

Ig if deleting a node and reconnecting 2 pins is too hard, sure why not

Idk why you bothered posting that screenshot tho

Seems like a lot of effort to just say fuck it

[lofty rapids]

to cast or not to cast

sometimes you just want to be sure it's that class

[trim matrix]

my biggest question is, how is he going to make an entire game like that???

everything will break at a random moment

[lunar sleet]

Eh, sometimes it’s best not to ask lol

[trim matrix]

true llol

[lunar sleet]

If you use get actor of class, there can’t be any other result other than that or none, at which point you can just use an isValid check

[lofty rapids]

• 0.1 is 1 percent, so you could also multiply that by the dexterity and then get the total percent of attack speed

[steady night]

i think i solved it

@lofty rapids

this would do it tbjh

[lofty rapids]

hmm

[burnt citrus]

Hi I have a math question
I want Ability to stop if the character moves over 45 degrees from forward
And I saw that "Wait Velocity Change" node will detect if the "Direction" and "Velocity" Dot product exceeds "Minimum Magnitude"
Then, what nodes should I use? My formula does not work...

[tropic peak]

there's "on begin overlap" and "on end overlap", but is there something like "is currently overlapping"?

I have a simple bp that opens the door when I enter the trigger box, and after 3 seconds the door close - I'd like to keep them open if I'm still standing in the trigger area

I could add another boolean to check that I guess..

[versed sun]

Get Overlapping Actors / Components

[tropic peak]

so that would be an array. close the door when the array is empty again?

that actually brings up another question. I get really confused with the nodes most of the time (i'm new). how can I figure out what should I be plugging into them? what's the right way of thinking about this? get overlapping actors is a great example

I see this and I'm not sure what to do with it. Just connect this to an array and then validate its contents?

(not from the target node obviously)

[undone bluff]

this returns an array so you do any of the array operations on it it, here you'd probably iterate through the array using a for loop until you find an actor that matches the class you're looking for

every node is basically a function, it can take some input, runs some c++ (or multiple collapsed blueprint nodes) and then gives an output

[tropic peak]

yes. it's just difficult to figure out which output does when you use something for the first time

I kinda have the idea of what should be happening in my bp but I'm a bit stuck looking at it

[undone bluff]

it's something that'll be easy when you understand how the engine works more

[tropic peak]

yeah true. I'm already seeing a lot of progress - now vs 5 days ago

[undone bluff]

this one's simple, it's a function targeting an actor

the class filter takes a class to look for

and the node returns an array, i.e. a set of actors that it found

documentation on indiviudal nodes tends to be sparse

and tracking down the c++ code behind the nodes is a pain if you're using UE from the launcher

but you'll still generally find a lot of info if you google the name of the node on the internet

remember to hover your mouse over stuff all the time, sometimes there's really useful and clear tooltips

[chilly plover]

Any ideas how to make my firstpersoncharacter player fit through a door? Can I resize something?

[lofty rapids]

resize the door

[undone bluff]

either the collision of the door or the collision of the character

optimally you should determine the right player collision size for your game first and then make the doors with that in mind

[steady night]

why is this not working :/ ?

[undone bluff]

also just make sure the door has proper collisions

[tropic peak]

am I on the right track here?

[undone bluff]

no

wait a sec

[tropic peak]

yeah I know it's a clusterf*, I don't expect it to work

nothing is connected to the main signal

[lofty rapids]

what are you trying to do ?

[tropic peak]

trying to figure out how to use overlapping actors to check if player is still standing in the trigger area

and I think my mind drifted a bit too far away

[lofty rapids]

maybe on tick and a boolean

but you got no exec going into that for, and idk why your making an array

[undone bluff]

if all you want to do is to just check if anything is overlapping then

[tropic peak]

yeah

[undone bluff]

get overlapping actors stores actor references, so if you want to check if they are of a specific class you do need to check them individually

but what you can do is store a reference to, say, your character and check if it's in that array using a "contains" node

[tropic peak]

I'm gonna need a minute to try and understand, my mind is blank

[undone bluff]

yea this stuff is tricky

communication, references, instances, inheritance

[tropic peak]

I find it a bit difficult to debug "on the go" in unreal. In unity I could have editor in one window and the game running in another, I could click on any element of the game as it ran. can I do something like this in UE?

Like I'm not even sure if my player actor is the one that I chose from the list.

[floral totem]

Is it possible to change the root component of a blueprint without remaking it?>

[undone bluff]

check the 3 dots next to the play in editor button

[undone bluff]

I don't see why not?

[undone bluff]

also you can access editor controls while playing by pressing F8

[floral totem]

It says that the root is inherited and cannot be replaced, so Im curious if I just need to remake it

[undone bluff]

you cannot remove or replace an inherited property

that's just how inheritance works

[tropic peak]

Thanks, i'll check that out. Just need to finish one tough e-mail to clear my mind and I'm back to what I was working on earlier.

[undone bluff]

if you have a subclass of character and don't like the collision it comes with you'll need to make it work somehow or make your own character class without it

[turbid pecan]

I have a question about some odd behaviour in my movement BP. I do it using a timeline lerp between initial position and final position (which is initial +300 units), this ends up working nicely other than there's a noticeable delay between when I can press the movement key again to repeat a step forward for instance. The timeline can be sped up which speeds up the animation, but it does not remove the "pause" between presses nor does it change it at all.. Can someone peek at this and see if anything stands out?

[floral totem]

I have an actor who has the root component set as the capsule component, I need the static mesh component to be the root so that the buoyancy component will work

[floral totem]

Was just exploring options

[turbid pecan]

I wonder if this is due to my condition setup saying the reset only happens when the anim finishes

but theres still that static pause..

[undone bluff]

you'll need to make that change up in the hierarchy, wherever that capsule component is declared

[lofty rapids]

makes sense and it's hooked up to a do once

[turbid pecan]

It's annoying in a sense cause if I bypass it, then the collision doesnt work as well using the box trace..

If i hit a wall ill pop out the other end

but not if do once is in play

Kinda strange

It kind of works if I remove the do once and hook the collision check when true to stop the animation

but then sometimes i stop at odd places moving my character out of the grid a bit

like..just slightly off the center of the grid square

It's kind of difficult to explain, I am not doing a very good job at it. I will try though..

So basically if I do it like this (see pic) then it wont go through the wall, but if i press directional keys too quickly, the character will stop not where the perceived grid square center is. So like... the grid pic i poorly drew

And of course it never stops in the same place. Depending on how many times i press quickly it could stop just a smidge off center or way off

it depends

[tropic peak]

hey that kinda works. however if the signal fires and sees the overlap happening it just ends there, and wouldn't close the door when I leave the area. I must have messed up the sequence somehow.

[undone bluff]

can you share a screenshot?

[tropic peak]

one second, need to fix something up quickly.

[tropic peak]

I have removed the reference to the player actor because I wasn't sure it was the one I should be checking and the script caught two light actors on the wall instead so the door wouldn't close. Now I just need to figure out some issues with one boolean and it should be fine

[lofty rapids]

i would just have a boolean that you switch on tick, but i abuse tick all the time

[tropic peak]

is there a better way of copy/pasting blueprints or do I have to do screenshots

[undone bluff]

set a boolean on overlap if the overlapping actor is a child of character and similarly set it to false on end overlap

I don't think I get the 3 second thing fully

[tropic peak]

oh there is. https://blueprintue.com/blueprint/3czmje2g/

[fickle flame]

Hello I could use some help if anyone has a lil time :3

I'm in my controller class because I want to make keybinds to move my camera. I made a test for when 0 is pressed to print a string but when I press the key nothing happens

[lofty rapids]

you assigned the controller in the override ?

[fickle flame]

idk what taht means but ill look that up

[lofty rapids]

in your world settings

[undone bluff]

I'm having trouble following

[tropic peak]

sorry 🙂

[fickle flame]

yeah just did this and it works now

tyvm sir

[undone bluff]

but first of all you have the delay to close the door hooked up to the update

[fickle flame]

I try to do it on my own so you dont have to waste time teaching me the basics 😛

[undone bluff]

can you explain what behaviour you are looking for with the time for the door to close?

that's the part I'm not getting

[lusty hedge]

what are some general rules to follow if a collision isnt working

[limber furnace]

Does anyone have an idea of how i could keep this 'random movement' within a collision box of another BP? (Idc if it stays against the edge of the collision box due the nature of randomness, just that it stays within the specified BP. I have a feeling i'd have to cast the collision from that BP, but then i have no idea what to do.

https://blueprintue.com/blueprint/zcvo5u5c/

[tropic peak]

I wanted to be able to set a custom s value for how long the door should remain open. it doesn't have to make sense, I'm just doing this to learn

[undone bluff]

so if you ever want to make a delay

but you might want to cancel it

like here, I assume

[tropic peak]

that delay at the end of evFrontOpen is not really needed there, I wanted to continue that path and forgot to delete it

[undone bluff]

what you do instead is a timer

[tropic peak]

holy crap I just realised something

[undone bluff]

if all you want is to open and close the door if the player is near it, you just get the other actor on the overlap and run this check

[tropic peak]

these triggers are moving when the door opens

oops

[undone bluff]

lol

[tropic peak]

makes it A BIT HARDER for them to overlap

that pretty much solves everything I think

yeah that works just fine, thank you @scaith 🙂

@undone bluff *

is there a hotkey to disable the "signal" view during simulation? for some reason I can't see my blueprints being processed. they work, but I can't see how, if you know what i mean

okay it works for one instance of an actor but not the other

why though?

[dry sleet]

is the correct actor selected as the active debug?

there's a dropdown

[tropic peak]

probably not because i didn't know about the dropdown

[dry sleet]

there's that, and apart from that I believe by default it shows the one you have selected in the view port

[tropic peak]

where's that dropdown though?

[lusty hedge]

can a character blueprint be possessed by AI

or only players

[dry sleet]

somewhere along the top center of the blueprint editor

I don't have unreal open

[tropic peak]

got it, thank you @dry sleet

[dry sleet]

good stuff!

[lofty rapids]

i believe so, i have had enemy ai as characters so they move properly

[dry sleet]

yes, that's fine

They're pretty much just pawns with a CMC and skeletal mesh built in

[lusty hedge]

Okay so im making a tank game. i have the projectile and tanks of course. but my issue is the tank has many different hit boxes. should the projectile BP try to access the tank BP to determine which hitbox it hit? if so how do i do that?

[dry sleet]

I think it should be the other way around

Or rather, the shell might inform the hit actor via an interface

Then you can also pass along the hit component (it is a member of the hit result for traces).

But I would avoid using the projectile be at all aware of the concept of "a tank"

Generally I think it helps to think logically about things like this -- a projectile doesn't care about WHAT it hits

the thing that GETS HIT, however, cares plenty that it got hit by a projectile

I haven't really touched physics based Hit events that much, though, mainly trace-based stuff

[lusty hedge]

but dont i need to setup wha tthe projectile ignores. i dont want to blow up the ground

or is it only the reciever of the overlap that requires me to setup?

[dry sleet]

you could have the tank respond to the impact via the interface call

[tropic peak]

is there a simple way of putting a box collision overlap to sleep for certain amount of time?

[dry sleet]

you could create an interface with the function OnProjectileHit(ProjectileActor, HitComponent) for example -> then you can implement that function on your tank and deal damage or w/e

[lusty hedge]

ahhh but this is such a headache now. i need to remake the tank entirely

[dry sleet]

if the ground doesn't implement that interface then nothing will happen to it when hit

[lusty hedge]

because the player controlled tank has inputs and firing

and the AI tank will need to be different

[lofty rapids]

maybe a custom collision channel

[lusty hedge]

could i maybe have a component that both the palyer tank and the AI tank have

that holds a ref to all the hitboxes somehoiw

[lofty rapids]

well you can make an array that holds the refs

and loop through them if you need to check things

[lusty hedge]

this is hard

ill repor tback in a bit

[turbid pecan]

damn I can't grok this

it's definitely the fact that im setting actor location on animation update to make it smooth AS an animation

but without stop controls, the animation gets restarted before the last one finished resulting in differing coords

so if i move from 0 to 300 and dont let timeline play out first, and then hit W again as it plays, I could be at coord 150 and then second timeline would get me to 450 not 600

Can't quite suss out how to sort this out without doing something weird with the animation..

ok

So..

Just tried something

[torpid sparrow]

Question: Game User Settings. Trying to check if saved settings exist and are valid.

[turbid pecan]

Apparently the timeline does not stop at the last keyframe of .35s, it actually needs another input for length. Adjusting that makes this responsive

Fudge me sideways

[lusty hedge]

how do i prevent fast moving projectiles from phasing through things between frames

[lofty rapids]

are you shooting something ?

[lusty hedge]

yes

it sometimes works

[lofty rapids]

you can use a line trace most likely

[lusty hedge]

i cant!

i need traveling tank shells

projectiles

but because its so fast its passing through the hitbox between frames

unless.... i can have a line trace with a curve to simulate bullet drop

and a projectile fly along the line just for looks

[lofty rapids]

idk if you can do a "curve" trace

[lusty hedge]

i think im onto something

[lusty hedge]

what if i line trace from the projectile?

[runic coyote]

Hi all I'm having a BP/animation related issue posted in the animation section here; was hoping someone might be able to help me #animation message

[modest monolith]

Hello! Can someone tell me why whatever I put in here, my character teleports there always with the normal rotation?

[agile pilot]

I'm not sure to have understood your issue, but yes LIneTracing from the bullet is the common method for high speed object like bullet. The mos speed he have the longer linetrace you will need ^^

[agile pilot]

The SkeletaMesh and the animationBP work well if i put them as default, but modify them in BP with "Press Keyboard U" event for example make the SkeletalMesh update properly but the animationBP don't. Any fix/explanation for this ? RESOLVED : didn't set the "ABP Ref" i was needed in the BP

[limber bough]

can somone help with this issue https://forums.unrealengine.com/t/set-actorrotation-breaking-property-access-in-animbp-blueprint-thread-safe-update-animation/1653029/1

[twin shale]

Is there a blutility function to make a child of a blueprint? I cannot seem to find one

[fringe coral]

I followed a tutorial on opening Multiplayer Sessions and made some tweaks to the blueprint to try and relegate the entire operation down to one button press, but even though the Output Log says "Join Successful" the level I have set up does not open and both players just sit in their respective menus. Where did I go wrong with this? I suspect it's something simple, but for the life of me, I can't figure out what.

[pine mesa]

The note says, "Source was visible but ignored"

[remote wasp]

Hi
I need some help to understnad how navmeshes work

When I open my level in editor, the navmesh builds and everything works
However, if I open my level from another level during the game, the navmesh is not there and my AIs don't move
Is there a way I can force navmesh building when opening a level?

[fallow umbra]

Hello, I need a "logic idea", not the implementation

I have a TriggerBox each time APawn enters it AddsImpulse wait 10 seconds and execute the FinishLogic

⚠️ But we run into an issue, if 2 or more pawns hit the TriggerBox within the 10s window - the FinishLogic will be execute only for the last pawn (since the delay will be retriggered)

How would you approach this?

My idea is:
|| Store each pawn that hit the triggerbox, each 500ms loop thru and execute FinishLogic since the order is also important||

[lunar sleet]

depends. What does FinishLogic mean? why are you using delays? what bp/cpp class is this code currently in?

[fallow umbra]

FinishLogic means: increment a variable on playerstate -> then destroy the pawn

I use delay nodes to give the player chance to see the Impulse effect

The current code is in a BP_AActor

[lunar sleet]

delays are usually not the right tool to use, as problems such as these tend to occur. Set Timer by Event or coroutines are a better option. What is BP_AActor in your case, did you modify and extend the original Actor class?

or is that your Pawn's bp?

[fallow umbra]

Is just a blueprint that has the Actor class as a parent, there is no c++ code

that's where the TriggerBox BeginOverlap event fires

[supple dome]

yeah a timer with a FIFO array should work fine

[lunar sleet]

may not want to use cpp naming convention for it then, but that's just aesthetics

[fallow umbra]

ah ye, the actual name is BP_Round_DeathRun

[fallow umbra]

anyway, I was just looking for some implementations ideas beside the one that I already provided

[lunar sleet]

anyway, on overlap, set timer by event non looping, 10s time, delegate to an event that calls FinishLogic

[fallow umbra]

Yeah, but the FinishLogic has the PlayerState as a parameter.

Wouldn't that be an issue if more than 1 player would hit it?

eitherway, will give it a try, thanks for the ideas

[lunar sleet]

hard to tell from this end, you would need to test it. but if you're experiencing #multiplayer related issues, those legends can help further

[lusty hedge]

I'm trying to make a tank shell projectile that ricochets if it hits the object at too steep of an angle.

I had it figured out at first:

• Sphere collider at the tip and explodes on impact.
• and a Cylinder collider in the shape of a hockey puck right underneath. If the projectile touched the target with this first then, ricochet.

Problem is: it moves too fast so it sometimes phases through walls. I fixed this by making the sphere colliders height really large so it shoots ahead of the projectile reaching far.

But now how do implement the ricochet mechanic

[supple dome]

thats what the array is for, you place one in, you take one out every time FinishLogic happens

[supple dome]

if you are using physics you can enable CCD so the projectile wont phase through

[fallow umbra]

yeah got it, will go with the first in first out array method, thanks

[supple dome]

you can check the steepness of the angle with Acos(Dot(Velocity, SurfaceNormal)) < ThresholdInDegrees

[lusty hedge]

That is not a perfect fix. It just does checks more often I think. My object is moving very fast

Acos? Is that a node

[supple dome]

yes

[fallow umbra]

probably a bad idea but before I go to sleep I let this here, someone correct me if this is insanely wrong

If your object move very fast and CCD still fails you could do a custom thing

Like store 2 points each Nms and do a raycast test from first point to the second one to see if it hit

[supple dome]

CCD does sweeps between frames, not "more checks", in which cases it fail?

[lusty hedge]

I thought of that BUT this projectile has bullet drop

So A to B can't be calculated in a straight line

Why cry emoji

I'm a noob I don't get it

[fallow umbra]

you destroyed my idea hahah

no no, is not you

[lusty hedge]

Oh lol

Haha

[fallow umbra]

[lusty hedge]

I'll look at it but I saw a video saying that there's still gaps in it

[supple dome]

No harm in giving a try, maybe it helps

[lusty hedge]

NVM I got it mixed up with something else

Do I sleep or do I boot up the PC. The grind is real rn I love and hate game dev at the same time

last problem and i might have it.

the target has multiple hitboxes. nightmere

so how does the sphere trace figure out what hitbox it hit. it only has a Hit Actor pin

[limber furnace]

So casting right
You have to choose the specific instance of the blueprint as the 'target'. same goes for interfaces

I'm trying to figure out, how to determine how to reference the specific actor.

But i can't figure out how to specify that actor specifically in cast or for interfaces, instead of an aspect of the blueprint, or just BP
(Like i know sources of getting it, like collision boxes, event hit or event Anydamage etc etc.)

[remote wasp]

use tags

give the specific actor you want to get an actor tag
then "get all actors of class with tag"

https://docs.unrealengine.com/4.26/en-US/BlueprintAPI/Utilities/GetAllActorsOfClasswithTag/

Does that solve your problem?

[lusty hedge]

this is getting a bit too confusing for me

there are that many places to hit on the tank

i tried breaking it up in larger chunks with colliders

buuut i cant seem to get a trace to hit a collider or have the trace get the hit colliders info

[lusty hedge]

ill try

[remote wasp]

I was talking to UnitLoptop actually

[lusty hedge]

well shoot

[remote wasp]

but if that helps you as well that's great

[lusty hedge]

it kind of made sense for my thing as well lmao

[limber furnace]

Yes it does, thank you so much, i figured there was something like that i was missing lmao.

[lusty hedge]

thats why im so confused. i thought unit laptop was helping me

[remote wasp]

btw that's one of the ways to do it, and it's not the cleanest
get all actors of class with tags will still iterate through all actors in your level, so it's costly

a better way to get a specific actor in your level is to spawn it at runtime and keep a reference to it somewhere

(like in gamemode for example)

[lusty hedge]

im not sure that works here

[remote wasp]

no but i'm still talking to loptop

[lusty hedge]

ill leave

[limber furnace]

Really appreciate that (I'll note that down as a better solution.)

It's okay misty we'll get you there eventually lmao.

[lusty hedge]

it's all good i just kept awkwardly thinking Betshet was talking to me

[frosty heron]

Why not?

What's the issue