blueprint

[zealous moth]

1,1

then left

0,1

and so on

[dark drum]

I'm not the best when it comes to material stuff but you can set the physics material on the material itself. I would imagine if you're then blending between two different materials it'll use the relevant physics material. (I could be wrong though)

I believe there's a physical material mask node in the material editor.

[normal fjord]

Can I do different code behaviors depending on the surface physics material by itself? Or do I gotta have a switch case somewhere that addresses all physics materials

[crystal crown]

does it matter if i cast to parent class on tick?

[dark drum]

You can do a line trace to get what the character is standing on which can return its physical material. You could choose to do something based on the physics material if you wanted.

[dark drum]

What do you mean by parent class? As in you have a child of an actor that you're casting to the patent?

[crystal crown]

casting from actor component to pawn class

[thin panther]

That cast will always fail?

A pawn is never an actor component

[crystal crown]

no it doesnt

[thin panther]

So you're not casting a component

See "Other Actor"

[crystal crown]

i guess i phrased it wrong as usual

would this be fine on tick?

[thin panther]

Realistically yeah it should be. Give it a profile if you wanna be sure

[plain lichen]

hello, how can I improve this "blueprint" to actually include checking if the player is moving backwards when the "free look" button (so rmb) is pressed? Right now what happens is... well, this, in the video below (basically some kind of "moonwalking" + random camera movement + the character faces you and moves backwards)

the blueprint part of the screen is basically "right side" of it included in this video https://youtu.be/4mij-t_x8G4

[crystal crown]

i guess i can put it on a timer, it doesnt have to be so fast

[thick prairie]

Guys, how do i find/reference an owner of spawned actor (I'm making a unit spawner, and i want to send an info to the spawner when a unit dies)?

[versed shore]

hey does anyone know how on event to reset character positions? I have many characters that given some event (either to the character or externally), resets all character positions to a certain spot

[thick prairie]

@versed shore wouldn't a save system solve that problem?

[broken wadi]

Any of these nodes will do that except the first one doesn't handle rotation.

The transform is location, rotation and scale

[versed shore]

ooo thats what I need. Thank you!!

[fiery oracle]

Hi i need help im following SmartPoly ue5 Multiplayer Survival Game cours. my problem is with the inventory systhem. I know the item is added to the array but it does not show up in the inventory Ui. Ive cherch for hours now and idk what to do

[alpine gulch]

Is this not sufficient?

[lofty rapids]

so your using the array to display the items ?

[thick prairie]

@alpine gulch I tried that, but it doesnt work for me :/

[thin panther]

You'd need to pass it in. Your unit spawner isn't actually the owners just because it spawns it

[thick prairie]

Ow, ok. I'll try that out. Thanks for help 🙂

[solid vault]

what does this error mean

[placid stream]

Giving another try, this issue is driving me insane and I've tried so many suggestions

Anyone ever experienced a blueprint node having an error every time you start the editor. If you refresh the node and recompile it works fine (until next editor start)

[potent relic]

Hello, I want to compute several paths to the point. Is there a way to create nav modifier on the every generated path to make them different?

[placid stream]

Solved, duplicated the broken BP, renamed the broken one, fix redirectors, then rename the new one to the original name, fix redirectors, delete broken one and replace references with the new one

[kind moth]

When I move the character start in level editor and then start the game it moves where the player character spawns but leaves some of its components behind. How do I fix this? Thank you!

[pale mica]

Set up an emote system, but for some reason the mannequin stretches out and certain body parts don't emote properly. Clues?

[sweet silo]

just so you know you should post in one channel only 🙂

check out the #rules

[dawn gazelle]

Has nothing to do with your code. It's an issue with the #animation, your mesh or your rigging.

[pallid nest]

hi guys , what could be wrong with my print string? the whole code is executive creating the widget) but something I notice i cant see print strings anymore (it doesn't matter where I put the code), any ideas ?

[pale mica]

Why is the sound still repeating when I spam the key

I was looking for a stop 2d sound

but that doesn't exist...

[humble sleet]

hello! does anyone know why I lose widget focus every time I right click?

the mouse enter and leave events stop firing if I right click, and I have to left click again to make them work

[versed sun]

try Create Sound 2D

[pale mica]

not sure how, since I didn't use a variable

@versed sun

[versed sun]

Your node Play Sound 2D play a sound and forgets about it, no way to stop it
I am suggesting that you use the Create Sound 2D nodes to give your self control to stop the previous sound (If Valid) and then Play a sound

[faint pasture]

This should play the sound every other press of the key, is that what you want?

[trim matrix]

because your are not stoping it or what so ever

[humble sleet]

fixed it, every time I release right click, I set input mode to UI only, then back to game and UI

horrible jank but functional jank

[pale mica]

No, press the key and it should play once until the animation is finished @faint pasture

[faint pasture]

That's not how your code is set up

[pale mica]

how should I have set it up?

[faint pasture]

set the bool false on montage completed

[pale mica]

I can still spam the audio

[faint pasture]

show your code

[humble sleet]

use a gate?

I like gates

nvm

[faint pasture]

What do you want to have happen if you spam the button?

Your code will start/stop/start/stop if you spam, is that what you want?

[pale mica]

I want the audio to start/stop/start/stop too

just like the animation

[trim matrix]

then delete the last BOOL SET

[versed sun]

#blueprint message

[faint pasture]

#blueprint message

[humble sleet]

play sound 2d doesn't give a return value

so you can't get it and stop it

[pale mica]

that doesn't fix it

[pale mica]

makes sense

[trim matrix]

is the song 1 sec or more?

[pale mica]

4sec

[humble sleet]

use create sound, promote return value to variable, then grab that variable and stop it when you want to stop

[trim matrix]

play 2d work usually for click sound or short sounds that wont change

[humble sleet]

[faint pasture]

You also could stop overlapping with concurrency settings, but that will not stop the last sound, just keep them from piling up

[pale mica]

I have this now, and it doesn't play the sound at all

[lofty rapids]

hmm

[trim matrix]

the SET node isnt even connected

[lofty rapids]

you probably want some power to that set and also play and stop wherever you need it

[pale mica]

yes, I see now it should be connected to a stop

[flat coral]

Got a build error going on, says I'm missing a worldcontext pin or something. But it doesn't say what BP is causing this, so how do I solve this?

[versed sun]

The only place i ever see World Context is Function Library's

[flat coral]

You're right I could just look through those

OH it's when you get this crap

That __WorldContext input from copy/pasting library functions

Yep, build succeeded, that was the only problem.

[versed sun]

nice

[manic ridge]

Anyone know what I would put out of overlapping actors to check if its an object with physics enabled?

[lunar sleet]

For each loop, Simulates Physics?

[manic ridge]

Well I want it to be if the physic cubes overlap with the capsule component then it releases object

cuz otherwiise you can just stand on the cube and fly

[lunar sleet]

I mean you can use get overlapping components if you want

[manic ridge]

ooh

[rough blade]

Does updating a member variable in a replicated struct send the entire struct to clients or just the piece updated?

[frosty heron]

#multiplayer

[crystal drum]

I've got something set up that I want to keep simulating when I pick it up in VR. Is this do-able? Like, to keep a skeletal mesh's bones ragdolling or fabric flopping while it's held?

[trim matrix]

How do I create a dynamic material when creating an actor in the world(using spawn actor node) and then changing a scalar parm, I just dont know how to access it, I tried casting and stuff.. Ty for help

[frosty heron]

When you create a dynamic material you will have a ref to it (return value). Use that to set its params

[trim matrix]

you need to have a ref to that material though

but how to do that when I am just spawing it in the world

[frosty heron]

#blueprint message

Spawn actor-> create dyamic material-> promote as variable -> set material to index -> get the ref to the promoted variable to change the param to change it on runtime

[dawn gazelle]

The ref to the material is depending on where you're storing the reference or are using the reference to begin with.
If you want a reference to the material on a mesh that exists on the actor that you're spawning, then you'd use the spawn actor node's return value, get the mesh from the actor, and get the material you want from it, then you can create your dynamic material from it.

[trim matrix]

ok but I though the blue output of the spawn actor was already that ref

[dawn gazelle]

That is a reference to the actor that you just spawned.

[frosty heron]

It's a ref to the actor not the ref to the dynamic material that doesn't exist yet

[trim matrix]

ok tyy

[trim matrix]

tyy

[frosty heron]

Right click on empty space, create dynamic material

Then set that material to your spawned actor

[trim matrix]

I cant create a dynamic mat like that

[frosty heron]

From the create dynamic material node, promote the return value. That's your ref to the material instance. Set the param from there

[frosty heron]

Why not?

[trim matrix]

the dynamic material isnt self

its connected to another actor

[frosty heron]

Can you show me how you are doing it

Just right click on empty space and type create dynamic material

Screen shoot that

[trim matrix]

okk

[finite hearth]

Is it possible to establish a widget's parent on the HUD event graph? I thought that was the point of HUD but I don't see any options for "add child" when dragging off my create widget node.

[frosty heron]

Right click on empty space and type create dynamic material?

[trim matrix]

a class cant be relied to that

[frosty heron]

I'm not following

[trim matrix]

what?

[compact locust]

theres actually a hack i do for this sometimes when i need, just make a variable for "children widgets" in the parent BP, then cast to the parent BP and add self to the array of children so u can delete them without removing all widgets

[frosty heron]

I don't understand the words you are throwing

Create dynamic material is a kismet library node. Should be accessible everywhere except objects

[trim matrix]

what do i put in the parent

[frosty heron]

There u go

[compact locust]

get material of the object, then get material instance of that material and connect the result of that to the parent

[frosty heron]

You chose the material instance for the parent

Or get the material of the object (if you want to use that material)

[compact locust]

basically it depends on the order

[trim matrix]

yea the problem is that i have a class ref and i need an actor object ref

[compact locust]

if make instance of a certain material first, set the return value to a variable so u can call it to change params

[compact locust]

okay im behind what u trying do

[frosty heron]

Already said this multiple times, the return value of your actor is the object ref to your actor

[compact locust]

what are u trying to do cat

like what are u trying to do in monke terms

[trim matrix]

I need the desctructabnle mesh though

[compact locust]

what is the problem like what is he trying to do so i can help

[frosty heron]

He is just trying to set a param on dynamic material for the actor he spawn at runtime

[trim matrix]

I will fix in on my own, i just gotta change the data table and add the destrucatble mesh in a actor ref and then plug it toghheter

[compact locust]

okay

[trim matrix]

thx for telling me

[compact locust]

let me type this out ppl gimme like 20 seconds

[frosty heron]

You should steer away from your system.

Just try to spawn an actor, create dynamic material for it, then change the param.

Once you know how to do that then you can come back to w.e u doing

[compact locust]

beat me to it

[trim matrix]

i know that part lollll

[frosty heron]

Doing it on multiplayer isn't helping either

[trim matrix]

I need the correct actor though

[compact locust]

what

[trim matrix]

ref

[compact locust]

u have it

the return pin is the ref

imagine the spawn actor of class is a printer

the left side is ur printer settings

the return value is the printed page

[dawn gazelle]

The paper is getting jammed.

[compact locust]

if u want to do stuff to it

goitta change the paper not the settings

[trim matrix]

my system is huge

[frosty heron]

It's not an issue of system

But not understanding references

[compact locust]

ik im just memeing since we already answered lol

ill just make a node layout for u cat RQ

[trim matrix]

i just didnt know that about dynamic material, once i know that, every makes sens and I will now never make the same mistake..

dont be rude

[thin panther]

That's not being rude. It is literally a problem of not understanding references.

[trim matrix]

not knowing anything about material*

[thin panther]

No, it's not understanding references

A spawn actor pin gives you an actor reference. It wouldn't give you a material reference, as not all actors even use them :P

[trim matrix]

I have been using ue5 for a month bro.. I hate materials 😛

[trim matrix]

how long have you been using ue5?

[thin panther]

Coming up on about 5 years now?

[trim matrix]

CRAZYY

[thin panther]

4 or 5, don't remember

[trim matrix]

did you publish a game yet?

[thin panther]

Nah, too much learning of areas I don't care about, like animation, and lighting, and VFX. At least currently

I just make things for fun, and do my job :P

[trim matrix]

yea

[frosty heron]

Cast the return value from the spawn actor

[trim matrix]

I know dw

ty for the help, its appreciated

[serene condor]

does the scroll wheel just not work in UE5 rn?

like I did this :

and put it in my BP

an yet the axis value does not change what so ever

anyone know why this is happening?

[lunar sleet]

Not sure, that input system is outdated

[serene condor]

I just restarted my game, see if that works..

did not work...

why is this not working...

and yes my scroll wheel on my mouse does work

doesnt make sense lol

[lunar sleet]

Is input enabled in this actor?

Or where is this code

[serene condor]

It is enabled as I can walk

and its in the event graph

[lunar sleet]

Yeah duh lol

I meant what bp

[serene condor]

Player Character

[trim matrix]

try print

[serene condor]

did that

[trim matrix]

to see if it prints something

[lunar sleet]

Does it fire at all?

[trim matrix]

what happened?

[serene condor]

it sends out the output. Just doesnt change

it stays always at 0

[lunar sleet]

Are those scale values default?

[serene condor]

here is the whole code. And 0 is the default value yes :

thats the whole code. Yet it doesnt work...

[lunar sleet]

No

I mean the input actions

Where it says -50/50

[serene condor]

oh waht

what*

[lunar sleet]

Maybe try adjusting those

[serene condor]

did that to

[minor pollen]

Hey someone has some optimization ideas for my Blueprint?
I have my Player Blueprint with many Custom events and Variables and adding new events or vars or even compiling the Blueprint takes very long. I saw in the popular assets Advanced Locomotion System that they have like some more Graphs in there event grapth so is there maybe a way to split those events to it is not so laggy any more when adding events or variables

There has to be some way for huge games that use blueprints that they use

[trim matrix]

data tables?

[minor pollen]

for Custom Events?

[trim matrix]

vars

[still swallow]

Why there;s no section for Interfaces in my Blueprint ?

[minor pollen]

sure but what do can i do with all those events that have inputs

even events without inputs are just lagging

[trim matrix]

because it's a blueprint thing

[still swallow]

But there's a section to see the Interface functions below the Overridable functions

In 5.3 I cant seem to find that

[trim matrix]

you can ask that in here

[trim matrix]

lagging? are you using casting on a tick or smt that could consume a lot ?

[minor pollen]

nah nah i dont and i dont mean its lagging in game my blueprint editor is just lagging when i add things like events or variables because i have many events and variables in that blueprint, but with other blueprints that have a few events and vars they are smoothe

[trim matrix]

many like how many?

can you show?

[minor pollen]

about 100 custom events

and about 40 vars

[trim matrix]

why do you have 100 custom event in 1 bp, what type of bp is it?(player, gameinstance...)

[minor pollen]

Player

it isnt like i dont try to make not that much custom events its just went to a huge game with many stuff so all off them are needed and we dont want to talk about functions i have more functions then custom events. There has to be some way to maybe split them but keep them in the same blueprint

[devout latch]

That’s a lot of Events. What are some examples? Is it something like PickUpWeapon1 and PickupWeapon2? Sounds like a design issue.

And when you say “lag” - just from compiling or in runtime?

[minor pollen]

Nop not making that mistakes, really everything is some separate stuff like i have equip weapon, death event, interact event. All some diffrent things. And not the compiling its just taking looong to add a custom event or a var i can show you a video if you want

[devout latch]

The video is not showing for me. It’s 0 seconds. But you think it’s the overall size of your Blueprint; not the number of Events, right?

[minor pollen]

I mean i have a huge size because off that many events and vars and functions and the post part off lags come from events i tested with other blueprints with just adding a lot off events and some with inputs and then the blueprint editor for that blueprints is just going slow

maybe this one works https://www.youtube.com/watch?v=DgOEhsRBPkM

[near surge]

Anyone know how to make a interaction system with line trace

https://www.youtube.com/watch?v=3q5fKTDdHAg&list=WL&index=2&t=416s&ab_channel=Tutorials.uasset

I tried using the tut for my interactio system but it doesn't work

it detects the object but it doesn't print out anything

and it doesn't work

[lunar sleet]

How do you know it detects the object ? How did you debug?

[charred grove]

guys, what would be the best way to do a passive skill in ue5? on tick? so it always active/ triggered

for replicated

[faint pasture]

Give example of the passive

+30 max hp passive, or "do thing when thing happens" passive?

[surreal peak]

For a LineTrace they should be the same

For a ShapeTrace, they are different. Take a Sphere for example.

O|

If the above is a Sphere in 2D O that hits a wall | then the location where they touch is the ImpactPoint, and the Center of the Sphere is the Location iirc

[charred grove]

for many actually, "always" and then triggers such as (fire the passive logic (give +30armor for 10 seconds) when health is below 20%)

or, after player kills 10 enemies damage increases, or, when player touches 3 or more enemies at once x thing fires

basically a check that is constant, and performant for multiplayer, so it constantly looks for a trigger

i got a actor to spawn (spawn actor of class) then inside of it a code that checks player health, and if its below 50 it fires the add effect (and other logic)

the spawn actor of class is in the character bp (idk where to place it, maybe on the widget of skill tree for when i add a passive to the skills build? and idk if it should be on event tick ) , and then a bp class for the passive where the add effect logic is there

[surreal peak]

Where does Normal Impulse come from again? Doesn't a HitResult just return a Normal and an ImpactNormal, similar to Location and ImpactLocation?

[faint pasture]

Event Hit returns normal impulse in addition to hit result and other things

[faint pasture]

It all depends on your design, can certainly use tick or timer, or dispatchers/delegates.

Depends on how many you plan to have around and how fast they need to respond

[versed shore]

Hey, I created a TCP connection to an external server, but I am running into the issue where I have to run the loop at a certain interval (currently timer). I want to only move on to receive data once send has been processed and for byte array to string be called once received data to be completed. Currently, the delay goes on a different node when leads back to the beginning of this loop. I tried using gate or just custom events without the delay, but I keep getting infinite loop errors:

[bold flax]

I have a question. I am wanting to move a in game actor with the player when they move from one level to another. From my research this would be done in the game instance. I am struggling to find much info on how to do it. Would I just get a reference to the object and store it in the instance then when the player is spawned into the new level just spawn in the object from what I have stored? Would any one have any examples on how to do this? Thanks in advance!

[dark drum]

This is a tutorial i made a while back. I pretty much use the same system for most of my projects (with some project specific tweaks).

https://www.youtube.com/playlist?list=PLcwVLBaUNnHra8G8ZBUkzPNu7qDM9OmZe

[dark drum]

You would need to store the relevant data needed to recreate the actor such as the actor class and any vars inside that might change. Before switching the level, store this data. When the level has then loaded, use the class to spawn the actor again and set the additional vars on the actor as needed. (if any)

[bold flax]

So if its a room for example with the player spawn. I would store everything within the room including the room its self and then rebuild it in the new level and spawn the player in? I would do this all in the instance right?

[dark drum]

I dont think you'll be able to do what your wanting with BP alone. Waiting for data to be processed would require a latent node and (afaik) you can't create new ones using just BP. Also you're connecting outputs across different execution paths which can give undersired results at times.

[dark drum]

Not far off, handling multiple actors does increase complexity though. The game instance is fine but personally, I would just use a save system to handle it as the same data would need to be saved for disc if you intend your players to be able to exit the game without loosing progress.

[bold flax]

Would you have a small example of doing this or know of where I might look for docs on doing this? Would this work for multiplayer?

[dark drum]

I haven't looked at saving on multiplayer games but from what I do know, it's just a case of making sure only the server does the saving and loading, and replicates the various commands to the clients. Save systems tend to get large pretty quickly unless all your saving a handful of vars. The best thing to do would be to look at Save Game Objects and how to use them.

[bold flax]

Thank you. What if I saved all the actors into a single actor? Then stored it. Then brought it over? Would that lower complexity?

[dark drum]

You can't save actors themselves. You have to save the data needed to recreate the actor.

[bold flax]

Oh okay.

[bold flax]

Thank you! This gives me a good pointer on where to look and where to start

[compact vapor]

what if I wanted ants in my game that allways traveled in pairs?

would it be a good idea to make a character BP that has like 2 skeletal meshes in them for both ants.

That way each like antBP would technically have 2 ants.

how would you guys aproach a grouping system like this?

[formal dome]

It could be, if you want them to be together all the time

And watchout if you have a lot of ants

it can hurt the performance

[compact vapor]

if one ant went on a slope, would the other use its own collision and not rise off the round as well?

hopefuly it would be possible for a character BP to have several collision capsules or something like that

[compact vapor]

grouping characters like that hurts the performance?

[formal dome]

You will have to make one collision for them, so if one ant went on a slope it won't fall

[smoky sail]

My Blackboard key selector is not showing any of My Blackboard keys. Can Somebody help me?

[formal dome]

If you want one to fall and the other one to stay at its place, then each one will have its own collider and you need to do some coding

and later they will get back together

[formal dome]

its not about grouping, its about how many skeletal meshes is there

[compact vapor]

i am basing this question off of this picture from a game called Halo Wars (1) (2009)

1 marine unit in this game is actually 4 guys that roam together.

so I have no idea how they roam together.

its not about moving to a location in a group or always staying close together, you could just do some light BP stuff for that.

what im talking about is that green selector circle underneath them. I cant figure out how in the world they get the circle under the unit to perfectly encapsulate the marine unit.

[formal dome]

enter the behaviour tree and from top right select blackboard

[formal dome]

create blackboard asset

[compact vapor]

All I can think of is for each marine in a group, average their vectors and project that point onto the nav mesh.

spawn a decal there big enough that it always encapsulates the group

[formal dome]

does this circle scale?

[smoky sail]

Thank you I Will try.

[compact vapor]

i dont think it ever has a chance to

(cant ever tell)

the units so perfectly stay together when doing literally anything its as if they are just sub characters in a character BP.

(this was where my idea came from of multiple characters in one character BP)

[smoky sail]

The behaviour Tree is not Selecting

[formal dome]

because you didn't create one

[formal dome]

there is some logic behind it to keep them close
for example the AI has to be in groups, each group in 4 Units

the AI will automatically look for a group that is missing one unit, and then follow them and stay close

If you have 5 units, and tell each unit to keep distance for example 2 meters, then you know that the circle will be in the center, with width of 10

[compact vapor]

im going on a walk with my mom, so will have to go, last night i wrote out some pseudo code for an idea of how to do this.

wondering what you think of the approach.

will send later on.

thanks for the info. take care.

[formal dome]

@smoky sail https://www.youtube.com/watch?v=R8wrICSSOe4

[versed sun]

*My brain "there is a bluetooth Editor?!"

[formal dome]

huh?

[smoky sail]

thanks for the info. take care.

[full turret]

Hello guys. I'm trying to make a hex tiling panel. I've got the first row (instancing a single hex mesh with a loop) but I don't know how to get the whole row of instanced static meshes to run another loop and create the extra rows.

This is the first row

[versed sun]

make a Loop inside the Loop

First Loop does a Row at Column X , next Loop shifts X

[full turret]

❤️ gotta adjust the height but it worked. Thanks a lot!

[small echo]

Hello everybody!
Has anyone managed to make bp_fluidsim_01 work with rivers and lakes?

[serene crater]

I'm trying to use BPs as prefabs/templates where a BP consists of a static mesh + light. I did this by first positioning the mesh and light in the scene and selecting convert selection to BP class . This gives a BP with both the mesh + light as child actor components.

Is this the right way of going about this? Or should the child actors be static mesh & light components inside the BP?

[formal dome]

can you send a screenshot of how the bp looks like?

[crystal crown]

every time i make a function back to an event unreal freezes indefinitely. lovely

[dark drum]

This website is a gold mine when it comes to hexagon based math.

https://www.redblobgames.com/grids/hexagons/

[compact vapor]

@formal dome

Might be too difficult to read tbh.

but might as well send it just in case its worth something

@formal dome man this might be too confusing lol

if you care to know more, here is the in depth example.

if you dont thats totally fine.

[when hover over unit with mouse cursor]

1. reference the sphere collision component that exists on each unit

2. get all actors in collision

3. if they have the same group ID as the original unit, put all of them into an array.

(this array then must be an array of all units that make up the same squad)

4. Get average of each vector of each unit in the array. (average location of squad)

5. project that point onto nav mesh

6. circle selector decal is placed on that point.

7. (additional step)
   size of decal is proportional to the distance between original unit vector and average squad vector

(circle scales with group)

[north lynx]

Hi everyone!
Is there a way to package game in UE5 to HTML?
Or some way to convert it?

[thin panther]

no

unreal is not the engine you want to use for html games

[frosty heron]

Isnt it abbandoned already

for quite some time

[earnest swan]

also not a bp question

[north lynx]

Like, I'm programming in bp, so I'm asking here

[north lynx]

Nah, I wanted to export my minigame from Win game to HTML and host it on site

[thin panther]

yes but it's a packaging question, not a programming in bp question

[north lynx]

Alright, nvm

[frosty heron]

you might as well use unity

seen some web stuff done using it. Unreal have abbandoned html route for long time

[north lynx]

Like I should use any other program, but still, I'm new in programming and using unreal bp's is my only way to do smth right now

[frosty heron]

then you want to avoid html all together imo but you do you

doing html in unreal is a lost cause

[north lynx]

Thanks for help anyways!

[frosty heron]

no support whatsoever

[random pulsar]

Is there a chance they will support html in future?

[thin panther]

no

it was supported, and removed

because it sucked, and added a lot of tech debt

[random pulsar]

btw i made my first pawn controller,from scratch input actions,action mappings,map all from scratch😁

quite simple but i start my journey from here

[compact vapor]

how are you going to solve the issue of jumping and gravity?

[random pulsar]

gravity is here,you may say its not a good way but im learning.Its already solved with gate

[compact vapor]

is that a timeline in the jump code?

[random pulsar]

it is

a decrease timeline from 4 to 0

[rugged wigeon]

@random pulsar your code here is confusing things like acceleration and velocity and input movement. Inputs should be for you moving your character around via your controller. Not physics like gravity. Jump can be something like Launch which is the application of a force at the start like a real jump, and then gravity slows you down and reverses

There’s some merit to maybe doing continued upward movement if you hold the button. But definitely not downward movement on tick as an input. This tick is very bad. You’re not even considering the time between ticks (delta time) so your guy’s fall speed is going to be a function of the frame rate (he will literally fall faster on faster machines)!

[frosty heron]

Good use of reroute node. Been a while since I see something that is not spaghetti. A comment box will be a nice final touch

[random pulsar]

hah ,i cant be a good programmer from start ,its a long journey

[rugged wigeon]

Of course

[random pulsar]

yeah ,forgot about comments

[rugged wigeon]

Not trying to demean

Try to get in the habit of collapsing chunks of code for readability early on too. Like if I have a branch node that has a few things feeding it, I will collapse them and relabel it “Switch on Is Falling” with an out pin for Falling and an outline for Not Falling. It ends up being far more readable. Almost any sort of implementation logic that isn’t a verb the actor does should probably be in a function or in collapsed nodes.

[distant hollow]

I have an Actor A and Actor B, spawned during runtime.
How do I, during runtime, attach Actor B as a CHILD actor component of Actor A? (Attach Actor to Actor does not seem to make it a child actor component)

[abstract mango]

In chaos vehicles, can we put a skeletal mesh into the skeletal mesh vehiclemesh?

Asking because of I'm curious, I might have a few visual upgrades planned and logically different cars have different spoiler positions.

On first thought I would approach it with putting a Skeletal mesh of the car as a Child into my main Vehiclemesh component which contains bones at the spots where for example a spoiler would be placed on that car.

Does that somehow work or is there a better approach to that?

[dark drum]

Child actor components is just a way to have an actor automatically spawn another actor at runtime that is automatically attached. Why are you needing it to be a child actor component?

[distant hollow]

Because of situation

[dark drum]

You'll need to explain the situation. Without context, its difficult to offer a solution.

[trim matrix]

hi

[distant hollow]

I don't want a workaround, I already have various workarounds around my situation
Just that I wanted to do this in a simpler manner, thus asking if it is possible to do such an attachment during runtime.

[dark drum]

Its odd that you don't want to explain the reason why your wanting to be able to do something. Child Actor Component were never designed for runtime so anything that's provided would be a work around.

As i mentioned, they were just a way to have an actor spawn another actor at runtime automatically that is linked/attached.

[trim matrix]

why wopuld you need to attach them?

[distant hollow]

I don't want to explain because it is irrelevant and lengthy; thanks for confirming it can't be done (as least not that anyone here knows of)

[distant hollow]

Refer my reply to pattym

[trim matrix]

is it the build child system you were talking about?

few days ago

[dark drum]

It wasn't relevant, i wouldn't have asked. 😉 You would most likely need to create a child actor component on Actor A and set it to the actor type of B. I'm pretty sure it'll automatically spawn the actor so you might have to then destroy Actor B. Of course, without know what your actually trying to do, it difficult to say what the best way it to achieve it.

[distant hollow]

That's my workaround currently

But thanks anyway 🙂

[dark drum]

Id still love to know why you need it to be a Child Actor Component as I can see any benefits for it.

[trim matrix]

hacker

[noble crescent]

Quick Question.
If I create a timer that doesn't loop, do I still have to invalidate it?
Will it still run in the background?
Thanks.

[dark drum]

Afaik, it'll invalidate itself when it's finished.

[distant hollow]

Cos
I have an ArchViz project
Which can load up ready-made BIMs and user-made BIMs (created via another part of the software)
This loaded house is held as an Actor variable "HomeInPlay"
In the ready-made BIMs there will be a childactor component with a tag "SpawnPos"
There is a Build mode and a Play mode on the software that allows user to go into a FPS view in within the house
So in this part of the Play mode I needed to read this childactor component tag from the "HomeInPlay"
But for user-made BIMs this childactor component does not exist
I have another BP_PlayerStartPos which the user can manually place in the BIM and the position is saved
So I was thinking of simply spawning the BP and attach it as a childactor component to HomeInPlay so that it can be read in the Play mode.

In any case I have already solved the issue so thanks 🙂

[compact vapor]

any way to make it so that the characters capsule, only collides with the landscape ground?

[dark drum]

It might be worth looking at custom components. If all your needing is a tag to be on what it's attached to, you can have the one being attached add a special component to its new parent that can then contain information you might need to get.

Something such as PlayerStartPos could easily just be a custom component.

From your description, it seems like you might be using actors where you would probably be better of using a custom component.

Just something for you to think about. Glad you solved your issue though.

[distant hollow]

Yep I simply added a childactor component without any class, added a tag to it and set the transform; I realised that was all I needed at the end.

[bold flax]

Question. Here is what I am doing. I have a room bp that I am spawning dynamacly into the world. I want to be able to spawn the player into that room no matter where it spawns in the world. Any thoughts on how I might do this. I thought of getting the location of the bp once its spawned, my issue here is how would I know where inside the room I would be spawning the player? Any thoughts or ideas would be helpful. Thank you!

[distant hollow]

You can Get Bound on the room itself and use the center origin as a spawn point or transform location.

Alternatively, if your room BP is kinda fixed, you can have a variable inside that holds a relative transform, and use that for your player.

[bold flax]

ooooo! Yes!!!

[dark drum]

Add a player start to the room BP using the child actor component.

[bold flax]

This would also work. The one problem here Is where the player is in the room will change depending on where they are in the room before it spawns in. So they will be in the room in another level and they will be being spawned into relation to their location in the room when the level loads up.

I hope this makes sense. Think lethal company on the ship when it comes in and out of the level.

I am thinking the get Bound will work for this.

Also in a multiplayer setting I am not sure how player start will effect it or make it that the player gets moved into another players room.

[dark drum]

You can just update it's location within the room BP based on various conditions. If you go down the route of using the bounds, just make sure you don't make any donuts shaped rooms.

Also player starts have a player start tag that can be used to check which ones to used.

[bold flax]

Good to know. So I would spawn the player start in the bp?

[dark drum]

Add a child actor component and select player start for the class type. It'll then move with the room bp.

[bold flax]

Do you know if you can get the players location in relation to the get bound?

[random pulsar]

i remade the logic from level blueprint,i made an actor bp with this logic,i pace it in level and noticed that if i pace 3 actors in scene every actor is independent.I want them to increment the same variable that is used

[dark drum]

As in it's relative location based on the center of the room?

[bold flax]

Yeah.

Right. But what if I am wanting to spawn the player into the room depending on where they were in the room prior?

[dark drum]

Get the players world location and minus the bounds world location.

[dark drum]

You need to store the var in a single place and have all instances update the same one. For example, 'Keys' could be put on the player character so when the buttons are triggered, they get the player character and increment the key var on the player character.

[bold flax]

This will give me the players location in relation to the center of the room? Even if the room changes location when I want to spawn the player into it?

[dark drum]

You would probally need to cache the rooms current location before it moves but yea.

[bold flax]

How would I get the rooms location?

[dark drum]

The bounds of the room.

[random pulsar]

so i made this and i need to cast to that blueprint and get the box collision?

[dark drum]

@bold flax create a custom event and call it add key. Then in your button BP, get player character and cast to the third person then call the add key event.

[bold flax]

So I would get the rooms location with bound and then the players location in relationship to that bound and stored it. Then when the room moves I could get the rooms new location and bring over the stored player location and add it to the new rooms location? @dark drum

Does my thought process make sense?

[random pulsar]

nice

thanks

btw,collisions that only change the character speed ,can be in level blueprint or i also better make them an actor blueprint?

[dark drum]

Most things should be an actor. It makes it reusable. 🙂 saves having to repeat yourself when you want to add it somewhere else.

[random pulsar]

yeah but if i use it only one time?

[dark drum]

Still an actor, just in case you change your mind. 🙂 In the 10+ years I've used UE, I think i've only ever used the level BP once and that was for some level streaming stuff.

[broken wadi]

Just say “no” to the level blueprint.

[frosty heron]

My only usecase of level bp

when I need a bunch of actor exclusive to that level

[random pulsar]

i have a few months of experience in ue and for every thing i learn i feel my wings are spreading and i will soon fly

[frosty heron]

problem with level blueprint is you can't communicate two ways in bpland. So for gameplay related stuff, you will only get pain with no pros using level bp

[compact vapor]

you guys know how when you attach a component to an actor (lets say his left ear)
that when their head turns around, the component whips around aswell?

like how the components are locked to the actors location so that when the original actor turns, the components stay where they are and turn with the actor?

how do you dislodge that so that when a character turns their head, everything attached to the head doesn't actually rotate or change location, but always stays in position relative to the actor?

component location should be locked to actor location, but not when rotating, do you guys know how to do this/what I mean?

[finite hearth]

Is there a way to configure the enhanced input system to accept multi-key press as a single action.

ie. Shift = action 1, shift + mousewheel up = action 2

Or do I need to get creative with bools on my event graph?

[thin panther]

you could probably add a new action for mousewheel up that only triggers if the modifier key "shift" is pressed

I know a big thing of enhanced input was modifiers

best asking in #enhanced-input-system

[mortal jay]

Anyone have any ideas what I'm doing wrong when trying to use bulk edit via property matrix for adding sockets to my sprites?

Around 1:30 on this video shows this being done. I've used bulk edit for other fields just fine, but I encounter a similar issue as the person in the video where "multiple values" shows up when I edit them all.

But in my case, only the first sprite gets updated. I've ensured that I have them all selected with ctrl + A (and they all turn blue). But no matter what I try, only the first selected sprite takes the updated values.

https://youtu.be/FIRR6zGcvjk?t=88

[north lynx]

Hey everyone!
Does anyone know, why my code doesn't work here?

[remote meteor]

the actor class selected exists in the world?

needs to be an actor in the level

placed or spawned

[north lynx]

Oh, my bad
I'm destroying the actor so the variable does not exist anymore

Fixed it already

[frosty heron]

I wouldn't name a variable ??? , if you are collaborating with someone they won't be able to read that

[north lynx]

Yep, you're right!
Currently I'm testing stuff, so the variables are only placeholders
Aside from the fact that this variable is literally text "???" XD

[crude timber]

I'm having a hard time figuring out how I can place an actor on a Normal, but then changing its LOCAL rotation to aim to my mouse cursor in the world

[small echo]

Hello!
How did you do that I've been trying for some time to make bp_fluidsim_01 work but I can't, specifically I'm using UE5.2 and I have several rivers and lakes with different z

[crude timber]

I can properly orient it on spawn, no issues there (with make rot from Z and the normal), but then how can I change only its local yaw to aim to my mouse, I'm not sure.

Basically, I want the "Add Actor Local Rotation" equivalent for a Set node

[lunar sleet]

Get the current location, break the pin, feed the current X and Y and only change the Z

[crude timber]

I'm not sure I follow you, breaking the get location and feeding X and Y to the rotation would not result in what I want ?

[lunar sleet]

You asked how to change only the Z

[crude timber]

Z rotation indeed

[lunar sleet]

Sorry, I said location, I meant rotation

[wary trellis]

in the level blueprint > event tick, i checked the distance from the fluid sim to the player and if its greater than a certain amount i teleported it to the player

[crude timber]

But that's the thing, it doesn't work because "Set Actor Rotation" is world space. This would result in my placed prop rotating along the World Z axis, not its local Z

[small echo]

Great, can you send me a print screen? I'm still a beginner and I don't really know how to do this. Thank you very much for the answer

[crude timber]

What you described works only for objects placed on a flat ground, but here I want it to stay oriented to the Normal

[wary trellis]

maybe later not on it rn

[small echo]

Ok, thank you very much

[lunar sleet]

Well if you have it attached to something you could use set actor relative rotation

[waxen garden]

Hello all, I have a question. I upgraded a quite old project to continue working on it, and everything works fine except one thing, and I would love to know how you manage to get answers to this kind of issues

This function has been deprecated

how can I find what is the new function that replaces the old one?

Thanks a lot in advance

I use that function to set different damage depending on what body part you hit the enemy with your linetrace

documentation still says it should work, but the engine says it is deprecated

[undone sequoia]

guys any tips how I can change this collison box of my skeletal mesh to his actuall shape? i cant use this

[waxen garden]

but UE documentation...well

[faint pasture]

just change it

physics asset editor if it's skelmesh

static mesh editor if it's static mesh

[near surge]

anyone know how to expand

this pickup system

[past compass]

what would be the best way to get a material overlay to dynamically show up on pickup items for example? i have a highlight material that i can use but i can't seem to get it to only appear when the player is overlapping it

[near surge]

yoo your also working on a pickup system too?

[near surge]

right now if I put more then 1 item, it just feaks out and doesn't work

[faint pasture]

Can you get it to appear at all? Is the problem that you can't detect the overlap, or that you can't get the material to show?

[near surge]

it only seems to check

one item

[faint pasture]

Why is your input handling in the item?

[near surge]

uh

I dont know i followed a tut

lol

[faint pasture]

There are no good tutorials

At least, not until you know enough to be able to tell if they're any good or not.

[near surge]

ah

um

[past compass]

i can't get the mterial to show, i tried first to add it as an overlay material but that didn't work. then i used a post process volume and added a material to that and then checked "render custom depth pass" on the actor i wanted that material to effect, but the issue there is that it always appears and i dont know how i can get that to only be set when the player is overlapping it

[near surge]

how do i fix it lol

[faint pasture]

I'd start by making a function or event in your Character or whatever your pawn is, call it PickUpItem, passing in the item as an actor or YourItemClass reference.

Put the smart stuff on the character, the item can just be a dumb thing that does what it's told

[near surge]

o

ok thank you

I will try that

[faint pasture]

Maybe dynamically set render custom depth?

Off by default, on when highlighted

[undone sequoia]

where i can find physics asset editor sorry 😄

[near surge]

How do I pass it in the item

do i

like change the parent class?

[past compass]

legit just tried this haha think it might be easiest move just wasn't sure how performant that would be to scal e

[faint pasture]

How many items would ever be highlighted at once?

It's probably the best scaling way I can think of to do it

[queen sphinx]

So I have this data that is being created with another program on my pc. It is hosted on it’s on ip and has a port number. How would I go about getting this info to be pulled into a blueprint?

[versed shore]

Does anyone have any ideas on how to implement this? I am researching latent nodes as recommended by pattym

[faint pasture]

Probably involving C++ or at least a plugin made in C++

What is the data and in what format

[queen sphinx]

Currently a python code that is just generating different rpm for a motor.

[near surge]

some help? 🙂

[faint pasture]

Yeah you'll need to either tie into something built into the engine (idk if there's such a thing) or use some plugin. It'll all depend on your desired data format etc.

[faint pasture]

just add a reference of whatever type you want to use to the event

as an input parameter

[near surge]

uh

idk how to do that lol

[versed shore]

im doing a similar thing right now but going both ways. You can bring data in by creating a c++ class using FSockets/sockethelper functions. Instatiate those in your blueprint

[near surge]

i just started using unreal like 4 days ago

so I dont know most of the term

[near surge]

and

ah

ok

[faint pasture]

Make it the base type of your items if that's how you're doing things

Not just Actor, but YourItemActor

[queen sphinx]

Great, so is C+ the only way to go?

[versed shore]

Yes. There is a networking plugin that costs 28 bucks but you can implement the functions in cpp

[smoky sail]

When ever I reload the gun magzine get empty?

[past compass]

it works and honestly feels quite smooth, just have an overlap event changing the boolean and it honestly just needs to be on client only so it's not really too big of a deal but it's doing a small check for a "player" tag before on the overlap

[faint pasture]

https://docs.unrealengine.com/5.0/en-US/using-live-link-data-in-unreal-engine/

IDK what live link is but if you can make your python code speak it it'd probably work

[carmine scaffold]

im using ninja character which allows me to go around loops like sonic. what im trying to do is to check if my camera is facing forward of my character or in range of it, but when i go around said loops the dot product goes backwards into the negatives.

[near surge]

so like my item's BP?

so like this

[queen sphinx]

I go give that a try, saw it pop up on one of my searches.

[faint pasture]

I'd use some base class of all your items but yeah that'll work for now if Pistol is the only item you have.

[near surge]

ah i see

[faint pasture]

Get it to work with Pistol then turn Pistol into your base class and subclass it for the other items

[thick prairie]

Can someone tell me why this blueprint wont spawn the unit without the delay node there?

[near surge]

ok thank you

[faint pasture]

Is the Unit to Spawn another thing that spawns a unit?

[thick prairie]

@faint pasture Mmm no, i don't think so

[near surge]

I just have another question, how do I like do the code now in my player BP

[faint pasture]

Put the stuff you want to have happen to an item in that event chain

Presumably turn off physics, attach it etc

maybe set a variable called MyHeldItem

[near surge]

im sorry but how do i even do that 💀

[thick prairie]

Also for some reason, when i play in standalone window, it spawns my main character, but not those units, but when i just simulate the game, my main character won't spawn, but those units will (that's without the delay node)

[faint pasture]

You've already done it

What do you want to have happen when you say "Hey, pick up this item!"

put that stuff on this event

Then later make another event DropHeldItem

[lofty rapids]

https://docs.unrealengine.com/4.26/en-US/BlueprintAPI/Rendering/SetRenderCustomDepth/

[faint pasture]

Then just have your inputs call these events

[near surge]

oh ok

how do i like call the weapon stuff if my code is in the thirdperson BP

[faint pasture]

Button Press -> figure out which item to pick up (trace or whatever) -> call PickUpItem
Button Press -> call DropHeldItem

PickUpItem -> turn off physics -> attach -> play sound -> set MyHeldItem

DropHeldItem -> if MyHeldItem is valid -> detach -> turn on physics -> play sound -> set MyHeldItem to nothing

UseHeldItem -> if MyHeldItem is valid -> call DoYourThing on MyHeldItem

[near surge]

ok tysm

[crystal crown]

how can i make a bouncing rev limiter

[faint pasture]

How does your engine work?

[crystal crown]

im using the chaos vehicle

[faint pasture]

It'll all depend on what you have available but if you're doing it from actual first principles then just cut the ignition at rpm limit and turn it back on at like 200 lower

[rough wing]

How would I snap an actor rotation to the closest axis?

[crystal crown]

there's no ignition system. it's so barebones

[faint pasture]

Then add it or fake it

What CAN you change about the engine when running? Torque Multiplier?

Drop torque multiplier to 0 at rpm limit and back to 1 at rpm limit - 200

[crude timber]

mmh, doesnt work either after I attach it, damn it

[faint pasture]

runtime or in editor?

[rough wing]

runtime

[faint pasture]

yaw only or in all axes?

[trim matrix]

Is there a reason that I can't see the timeline node in a blueprint?

[snow gazelle]

hello, why is it that disabling and reenabeling physics like in this image doesen't behave the same way during the animation as just not having physics enabled in the first place?

[faint pasture]

You in the event graph or a function?

[trim matrix]

fonction

[rough wing]

all

[faint pasture]

Functions can't have latent stuff

[trim matrix]

then what do I do?<

[rough wing]

I have a static mesh cube that I rotate, and I want it to snap to the closest axis so it always faces the camera at a right angle (the cube is child of camera)

[trim matrix]

even in the event graph, i cant use a timeline

[faint pasture]

What class?

[trim matrix]

actor component

[faint pasture]

Those can't have timelines as a timeline IS a component under the hood I think.

[trim matrix]

ok ty

[rough wing]

Maybe I use % operator to convert the rotator to 0-90 range then snap it to 0

[faint pasture]

You could round every axis yes but that might get really goofy as euler angles kinda suck if you're going all topsy turvy with them

If you're the one saying what the rotation is you can make sure to only ever add right angles to the offset

then each frame, CubeRotation = CombineRotations(CameraRotation, SnappedOffset)

SnappedOffset is what you modify with your inputs

[rough wing]

I'll try that thank you

[crude timber]

Figured another way of doing it, it works ! My goal was to set a rotation with mouse movement, but I can just use the Add Local Rotation with a compare float ! That way it adds with mouse movement only instead of on tick

[crystal crown]

aint working like i was hoping. it's more like interpolating than bouncing. too slow

even if i set the rpm difference to 0.001

[faint pasture]

Drag is probably really low

does the RPM drop slowly then raise quickly again once back online?

[crystal crown]

about the same. yea my rev up and down rates might be too low but i can't really increase them or it will turn into an arcade

[faint pasture]

What's your torque curve look like?

[faint pasture]

It should be flatter than that but that's not aweful

Is there a setting for off-throttle torque? What slows the system down when you cut power?

[crystal crown]

its frustratingly barebones like i said. no ignition system or off-throttle stuff. just "set max engine torque" and engine rev down rate which can't be edited in runtime

[near surge]

hey again

I have a question

How do I refrence my gun to the target self thingy

I rewrote the code in my player controller, but I need to turn on and off the physics

but idk how to get the target to my gun

slight help 💀

[timber crystal]

Greetings my friends and thank you in advance for everyone who tries to help me here 🙂

I want a FLYING ki to fly towards me as soon as it sees me
Thanks to your help, I have already made something here that works great, but for an AI that is on the ground

How can I change the whole thing so that the flying AI just comes flying towards me in my platformer jump and run game

[compact vapor]

I thought interface nodes are used to call events on everything that implements the interface?

completely not working at all

I have an interface on my parrent that is called
the children are receiving the message, but only one of the children receives the message for some reason

I need a node that can call an event on ALL children, not just the one that makes the initial call, how do you do that?

[trim matrix]

it should work

[trim matrix]

only to the thing that is relied to the target input

[broken wadi]

I think what you're looking for is an event dispatcher. You can setup something like the GameInstance to dispatch an event called "DoSomething". Click the + beside Event Dispatches, give it a name then drag it into the graph as a Call. Then on all of the actors that need to react whenever DoSomething is called, you just make a reference to the GameInstance and then drag from the ref Bind Event To DoSomething.

[compact vapor]

I have an "aiBase BP"

there are 4 children of this BP in the level.

when one of them finishes their AImoveTo, the other 3 need to stop moving.
I created a BPinterface and added it to the parent (so the child BP has it)

and called the BPI event when the moveTo finishes.
each child has the receiving BPI event but only one of them receives the event, and its the one that called the event in the first place

any ideas?
i just need an event that all children will respond to when any one of them fires off the event call.

[manic ridge]

hey so im making a physics puzzle game and im trying to figure out how I would make it where If you stand on an object then you cant pick up that object. like half life 2
I cant find any tutorials and my attempts havent worked
anyone have an idea?

[broken wadi]

Use an event dispatcher. An interface is useful when you don't exactly know what type of object you're going to be dealing with and want to avoid a cast. Meanwhile an event dispatcher allows for one-to-many logic.

[thin panther]

You could always do something math based. And do the dot product of the vector from the object to you normalized, dot product that with the up vector (0,0,1), and if it's withing your decided range of 0, like +-0.15 or whatever, then you're "on top enough" to not pick it up

[manic ridge]

Would it be possible to do a line trace by channel?

like

if the line trace hits a physics component

then it releases

and if i gotta do the think u said

can you explain it to me in simpler terms'

[compact vapor]

when it reaches the end, it calls the event
when the event is called, its fired in the children

but this does nothing, did i mess up the event somewhere?

[broken wadi]

Yes, you dont make an event called Stop Movement Task, you Bind an Event To Stop Movement Task.

[compact vapor]

ok this slightly worked, but only on one of them

the other 3 arent getting this event, even though they all have it

[broken wadi]

Are they all setup to use bind?

[compact vapor]

its a child BP with a bind event.
when the binded event fires, how are they not all firing the event, why is it still only one child BP

[broken wadi]

Do they all use the same BP?

[compact vapor]

each child is a instance of the AIbase BP

AIbase has the moveTo code, once it finishes it calle the event
the children have the bind, and it receives the called event but only on one of the children'

the only child that receives the event is the one that calls the event

[broken wadi]

The logic should be like the main one Calls the event which dispatches it to all the others who are Binding to it.

[compact vapor]

isnt that what I am doing though?

[broken wadi]

I can't really tell without seeing more screenshots

no clue which BP that code is in

[compact vapor]

this help?

they move to the location

they just dont call the event in all of them when one of them reaches the finished location

[broken wadi]

So the parent is moving from a to b and all of the children are also moving. As soon as one of them reaches b they all should stop moving?

[compact vapor]

yes

there is no parent in the level though

the parent is just there for all children to inherit from

the children inherit the moveTo code (ie the picture, shows the move to code in the parent)

[broken wadi]

how many times does it print out "done" ?

[compact vapor]

1

[broken wadi]

Is it just 1 parent bp, 1 child bp, and X number of child actors in the level? or do you have multiple unique child blueprints each using the same parent?

[compact vapor]

only 1 parent and only 1 child BP and theres 4 of the children in the level

[near surge]

i need some help

#blueprint message

[compact vapor]

you need object references to what ever those nodes are trying to do

@broken wadi here is a refernce pic so that you can see, just a simple 4 child group in the level

[near surge]

o ok

[near surge]

how do i reference it

[compact vapor]

what is that node trying to do?

[near surge]

im trying to disable physics when

my gun is in my hand

and reenable it

when I dont have it

in my hand

[broken wadi]

Yea i dunno that is supposed to work. I think you might of made a mistake with the wires or reference somewhere. Maybe just read up on Event Dispatchers a bit more or watch a video or something. I use them all the time and never had a problem.

[compact vapor]

then you need a reference to your gun in order to do that.
See those blue pins? thats the EXACT object that your setting the physics for.

the engine is asking you
"ok, fine, well set the physics.... but on what?"

[near surge]

ye I know, the target should be the gun

but

how do i reference it

[compact vapor]

i suppose your character has the guns on him in your character BP?

[near surge]

uh

ye

is in a socket

this is the BP

[compact vapor]

is the gun a component in your character BP (look in the components section of your BP screen)

or is it a literal thing inside the skeletal mesh?

[near surge]

uh

[near surge]

how do i change that

oh

is not

is a equipe system

with linetrace

when you look at the item it will get attached to the socker icreated

[compact vapor]

wheres the code for the line trace

can i see it

[near surge]

ye

is in my player BP

i wnat the gun to fall when i drop it and to NOT have physics

[compact vapor]

that blue pin you drag off of is your gun (assuming you actually hit the gun with the trace which is a potential bug)

[near surge]

and stay i nthe hand

[near surge]

uh

[compact vapor]

use that pin as your reference because in a literal sense, that is a reference to the exact object your looking at

actually

you already did that

[compact vapor]

just go into your list of custom made variables and use that blue variable (interactible) as your reference for setting the physics

[near surge]

uh

ok

[compact vapor]

those nodes might be what your looking for, but are not meant for that variable type

drag of of your variable blue pin and try to retype those nodes

[compact vapor]

what is the gun class called

one more thing, you need to cast to your gun

[near surge]

uh

i haven't evne make the gun functional

the gun is just called BP_pistol

with no code

[compact vapor]

so again, the unreal engine is going to say

"ok, set collision type.... sounds good....... but on what...... oh an actor?...... ok.... but what actor?"

[desert juniper]

The error message is telling you that you’re trying to feed it an Actor when it wants a primative mesh

Get the mesh from the actor then plug it in

[compact vapor]

its in a skeletal mesh

[compact vapor]

its not a component

[desert juniper]

So get the skeletal mesh from the actor

How can it not be a component?

[compact vapor]

there are like 500000 different actor BP's in Unreal Engine, so you need to specify which actor your trying to set physics for

[near surge]

ik

but

[compact vapor]

your not trying to set the physics of a spotlight, or a skylight, you need a gun.
so you need to take that blue variable and cast it to a gun

[near surge]

what skeletal mesh

[desert juniper]

Sorry may have missed some of it, but shouldn’t the actor have a skeletal mesh he can get a reference to, then change the collision settings on that skeletal mesh?

[near surge]

yeah I havent started on the gun stuff yet

[near surge]

im using a static mesh

[compact vapor]

its essential

[near surge]

ye

[compact vapor]

you need a reference to the gun on the ground right?
you have it.

you just need to slightly adjust it

[near surge]

okok

ok wait let me just show u all my code

[desert juniper]

Interactable > cast to gun > get static mesh > change collision

[lunar sleet]

A gun shouldn’t be a skeletal mesh

[near surge]

is jsut a empty BP_Pistol

this is the event graph

for my character BP

[compact vapor]

this is what you need to do.
#blueprint message

do you know how to cast?

[near surge]

um

no

im a beginner

lol

[lunar sleet]

Learn

[compact vapor]

gun is "on/inside" the SKM

[lunar sleet]

Watch the blueprint comms video pinned here

Also, you should prly just do what the FPS template does

[near surge]

all i need is to refrence a object

thats all i was asking 😭

[compact vapor]

you have it

[near surge]

ik but

[compact vapor]

which object is it that you have?

[near surge]

the gun

BP_pistol

[compact vapor]

hover over the blue pin

[compact vapor]

do you see how its called an actor?

[near surge]

ye

[compact vapor]

(on the interactable pin)

[near surge]

ye

[lunar sleet]

Just get the static mesh from it or whatever you need to set collision on.

[near surge]

like this

[tight pollen]

hi how hidde specific instance in InstancedStaticMesh?

[compact vapor]

that is techniacally your gun, but its too vauge

its like saying this

"this blue pin is some sort of object"
you need to specify further that it is a gun

[near surge]

im trying to change the collison and stuff

[compact vapor]

you do that with casting

[lunar sleet]

Drag from interactable and get your mesh

[lunar sleet]

Yes that is painfully obvious

[near surge]

dont i already have that 😭 ?

is this not

[lunar sleet]

You need to type check that variable by casting

Because it could literally be any actor

[compact vapor]

i'll ask again, im trying to get you to see what i mean

trust me
which reference do you have?

[lunar sleet]

And collision is set on components

[near surge]

wdym

ik what like im missing

[lunar sleet]

So drag from interactable or hit actor, cast to bp gun , get the mesh, set collision

[compact vapor]

your interactable object, what is it?

(that blue pin)

[near surge]

the gun

oh

yeah

[compact vapor]

ok! good

but unreal engine doesnt know that because the variable is too vauge
it only knows its a random actor

you need to specify further that its a "Specific" actor,
one that is called a gun.

so you need to specify its a gun, because right now its just a random object that could be anything

so you drag off of the blue pin do "Cast to (gun_bp or whatever)"

[near surge]

oh

[compact vapor]

@near surge

#blueprint message
this is exactly what you have to do
(i need to go, best of luck)

look up a vid on casting!

[near surge]

ty

sm

lol

sorry for wasting urtime

[compact vapor]

no prob

when you have a thing in your game, you cant do anhything to it unless you have an EXACT reference to it.
casting is usually used to get a specific reference to what you need

its the most important Blueprint knowledge to know for a beginner

[near surge]

ok thank you

[fiery oracle]

@lofty rapids yes i am stroring the item info in a array wich is link with my inventory slorts

[lofty rapids]

and when you add to the array it's not in the display ?

probably when do you render from array ?

[near surge]

ok 💀

urmm

[fiery oracle]

yes it stored in the array but doesnt show up in the inventory ui

[lofty rapids]

when do you render it based on the array ? or its "linked" ?

[compact vapor]

(put your bluepin into that grey pin in the casting node)

[lofty rapids]

do you only have one pistol ? and theres no power also your not casting from anything

[compact vapor]

(that grey pin is the piece of data you need to specify)

[cyan surge]

If I at editor runtime want to save some data into a data asset any advice on going about that, not talking about save games here, more like I want to save a socket transform at key points of an animation, something like that

[fiery oracle]

@lofty rapids

@lofty rapids when i press 1 to add a item to my inventory this error show up: Blueprint Runtime Error: "Accessed None". Node: Branch Graph: IsValid Function: Execute Ubergraph Survival Game PC Blueprint: SurvivalGame_PC

[abstract mango]

Need a bit of help over here, so basically what I want to do is changing the skeletal mesh of one component inside my Car (currently done with pressing 1 and 2 for 2 different skeletal meshes), I need a way to cycle through all of my car body Skeletal meshes.

P.S.: I'm completly new to Unreal Engine

[near surge]

wdym

[lusty oak]

Does anyone know why my camera aims forward when I am playing, even though the camera component clearly shows -50 rotation on the Y both in the blueprint and in the component while playing?

I suspect it has something to do with the hierarchy in the blueprint, but I have no idea what I've done wrong and haven't had much luck figuring it out.

[near surge]

my thingy just stop working XD

the error is gone

but

is not picking up anymore

lmao

[trim matrix]

shoutout to all the helpers in here

[near surge]

oh wait is because my in valid

[lofty rapids]

what does it look like for when you press 1 ?

[near surge]

only

only

get unpluged

when i pluged one of them

uhh

[lofty rapids]

i'm not sure you understand the execution pins

the white lines are power if nothing comming in it won't run

[near surge]

ik

but

if I don't plug this in

the weapon even if is valid wont go

to my socket

how do i like put the physics stuff in

[lofty rapids]

you want to do it before then just plug it in it should run the power will go through

plug the set into the set collision

and it should just flow through but do you want to do it after or before ?

[near surge]

i want it

uh

i

well

i wants it to have physics when is not

in my player's socket

but when is IN the socket i want it to be

static

like dont move

i can just plug it in

the power should go throught

but

it doenst

[lofty rapids]

well your missing a line

from the cast

[random pulsar]

hey,here im detecting the player and the difference of location of the blueprint and player,based on player location i move the object up,so im wondering about the performance ,how can i replace the tick?

[near surge]

wdym

oh

i see

ty im blind af 💀

[random pulsar]

what do i need a gate or smth else?

[fiery oracle]

@lofty rapids nothing happen in that Bp but the bp that call this fuction isnt working propely. At the is valid is suppose to go in the other branch

[lofty rapids]

i would print the index

see if it's valid

also the length to make sure that index is in it

possibly the get is not finding anything maybe bad index or not in data

[fiery oracle]

@lofty rapids the index is the empty slots value i think it may be wrong

[mortal steppe]

Is anyone able to help me figure out why I have a skeletal mesh that is attached to my player via a socket, but when I enable physics so it flops around, the mesh won't stay attached to the socket

[fiery oracle]

@lofty rapids this is the find empty slots fuction can u tell if any thing wrong with it

[sinful rock]

say - does anyone know the best way to code swinging a sword?

[spark steppe]

it's unnecessary complicated

you don't need a for loop with break

move the return statement after the branch and just early return when you found a slot

[fiery oracle]

@lofty rapids i think my slots info isn't right what could I go about fixing it

@lofty rapids is there a way to print the info so i can see its output

[lofty rapids]

ya, print string

it'll show up on the screen at the top left

[plush ether]

Anyone have an idea on how to create an actor that I can drag and behave like a landmass spline? (Mostly doing river I want to control via code)

Basically when I hit Update the water generate but I can't find a way to have the heightmap affected

[fiery oracle]

@lofty rapids how could i go about debuging the slot array info

[lofty rapids]

make sure the index is correct because your currently selection isn't valid

then if your index is correct, check what it's getting

you can print string the index

idk about the other you'll have to find a way to print it or you use breakpoints

[fiery oracle]

@lofty rapids i just dont uderstand why isnt my slots fuction working propely

[lofty rapids]

well it's going to invalid ?

so the get is invalid somehow

[fierce timber]

Hello guys i am working on a inventory sorting function with multiple types of sorting like (item type, order of acquis, item amount) but i dont think this is the best solution does anyone of you have a better idea?

TArray<int32> ULowEntryExtendedStandardLibrary::SortIntegerArray(const TArray<int32>& IntegerArray, const bool Reversed)
{
    TArray<int32> Array = IntegerArray;
    if (!Reversed)
    {
        Array.Sort([](const int32 A, const int32 B)
        {
            return A < B;
        });
    }
    else
    {
        Array.Sort([](const int32 A, const int32 B)
        {
            return A > B;
        });
    }
    return Array;
}

``

[rare shore]

How is this possible? I have an item, when overlapped this sets to true. String prints false and true I mean what? What happens here? I simplified the BP to make it easier to see..

[trim matrix]

check the collision of your mesh

[rare shore]

what should it be like?

[trim matrix]

there's something wrong for sure, with the screenshot you sent, it should be always true or false so there's something that you didn't show that is changing the variable

[rare shore]

i deleted everything else for simplicity

this is now an empty box

when walked over it, it should set to true :/

[trim matrix]

actor begin overlap = any actor can overlap with it

do a if: is other actor the player??, then... print if it is true

is that working? @rare shore

[rare shore]

still nothing:(

wait i will record it

this is getting on my nerves really 😄

[versed sun]

make sure you only have 1 of the actor in your world

[trim matrix]

what does the bp look like with the if?

[versed sun]

Also, there are other options besides Print
try Draw Debug Box at the location of your hit

[rare shore]

i have 140

so this is a problem?

im trying to make the save/load feature. i have 140 if this objects

[versed sun]

139 of them will be printing FALSE while you are looking for a TRUE

[rare shore]

oh.. how do i fix it ? I just want to save state of my collected items.. and then NOT load them on game load..

it there a better way?

[versed sun]

You could Get Actors of Class and filter by your Actor, that will give you a list of what is still there

[rare shore]

hmm

but they are all the same actor

all are lets say Armor1

then the level just makes them Armor11. Armor12, Armor13.. etc down to Armor1140

how do i filter out the already picked up ones

[versed sun]

yup, do they get Destroyed when you pick them up ?

[rare shore]

yes, but i tried setting visibility to off aswell instead of destroy

still nothing

so if i have 140 armors, how do i tell the array to save only the ones that were picked up? i cant think of it 😦

[versed sun]

I dont know how or what your are saving , but this will tell you if its picked up or not

Since you are setting Vis to False when you pick them up

[timber plume]

he shouldn't be looping like that every frame, it's probably working, just print the value of collected when you overlap it, not on tick

the individual actor will then only print when overlapped. If that doesn't print, its collision settings

then disable collision and visibility when picked up

[rare shore]

Okay i will try this one tomorrow. Thank you:]

[trim matrix]

try it now lmao

[rare shore]

Had to go to sleep, way overdue.. this was keeping me awake..:(

[timber plume]

I really wouldn't. just do this

good luck and gn tho

[rare shore]

Thanks all!

So i shouldnt destroy the actor? If i want to save the information if it was picked up or not? I should instead set visibility to off?

[timber plume]

oh and cast other actor to your character so the overlap only registers when the player overlaps

[trim matrix]

casting on tick is reallly usefull and not expensive apparently

[timber plume]

if you want the armor to reappear, feel free to just hide it
Destroy is likely fine in this case if not

[odd kiln]

Hello all !

Does anyone know how can I check if the player released the joystick ?

(the analog stick of the controller gamepad, or the button "W" of the keyboard for example)

It's ok I found it, thank you !

[frosty heron]

Casting once or every frame don't make any difference. Casting in bp loads the object into memory already (because of the hard ref). If the object are already loaded then there is no more price to pay.

Tick is bad or Casting is bad are myths from youtubers. Check the pinned article of this channel

[trim matrix]

wow, I learned something, tyy

[crystal crown]

could someone pls help recreate a very small CPP code snippet in BP for me?

[frosty heron]

Wat happend to the guy you dm?

[faint pasture]

let's see it

[crystal crown]

he told me to learn cpp instead of help me. classic cpp channel

[frosty heron]

Well it's better to teach ppl how to fish

[crystal crown]

void UpdateGForce() { const FVector Velocity = RigidBody->GetLinearVelocity(); const FVector AccelerationWorldSpace = (Velocity - PreviousVelocity)/DeltaTime; const FVector AccelerationLocalSpace = RigidBody->GetTransform.InverseTransformDirection(AccelerationWorldSpace); const FVector GForce = AccelerationLocalSpace / 980.0f ; //if length units cm, if meters 9.8; const float LongGforce = GForce.X; const float LateralGForce = GForce.Y; PreviousVelocity = Velocity; }

[faint pasture]

Do you understand what's going on here or is it all Greek to you?

[crystal crown]

this is what i gobbled up so far. not sure if it's right

[faint pasture]

So you don't need all the intermediate variables in the BP version of it

[broken wadi]

But its already in cpp...

[faint pasture]

those are mostly for orginization and readability

[crystal crown]

so what am i missing or doing wrong

[faint pasture]

Sec, firing up Unreal. You get one freebie

[crystal crown]

thank you good sir

[faint pasture]

Equivelent

Baked a few intermediate steps into a chain

[crystal crown]

so i pretty much got like 10-15% right

[faint pasture]

yeah just gotta get your head wrapped around the execution flow and the sets

[crystal crown]

i'm gonna look into how to read cpp after this

[winter tiger]

Could someone explain to me what is more performant(or if that is even a lie):

A) Use a get node for each variable reference in a BP graph
B) Use one get node and then string all references to that node together

See image for simplified example. Thanks for the help!

[faint pasture]

exactly equivelent

its the same thing

I prefer the upper as I like all my nodes tied to an execution node to be self contained

[winter tiger]

That's what I had kind of figured, but some where along the way I heard that option A would start to be less performant

[winter tiger]

Me too

[faint pasture]

I mean maybe rendering 1 more node on the graph editor but then you add a redirect so it's probably the same

but at runtime it should be literally identical

[winter tiger]

That what I was thinking, they are all looking at the same memory address right?

[faint pasture]

Yeah it's all basically
Print(IsTest)
Print(IsTest)

I like my BP to look like this, nice and readable and relocatable

it's a bit too compact for many people but I compact the stuff around an executable node when I'm done with it

[winter tiger]

This does my heart well haha. Love good organization. Now you just need some comments 😛

Thanks for the 411 on that question. Appreciate the help

[faint pasture]

Why? You can just read it and see what it does. I could maybe wrap the entire thing in a comment but the entry point is descriptive enough

If my variables were named A B C D then yeah it'd need commenting

[winter tiger]

True, true. A preference thing then.

I guess in a team setting when you go back to it 6 months down the road and the new hire has to look at it, it does help them out

[broken wadi]

If you're curious about further optimizing your blueprints look into ways you can reduce the total number nodes. Less nodes = less stuff to process through. That isn't always the case as some nodes are much more expensive than others, but its a good rule of thumb.

[mental trellis]

That is absolutely not readable!

[trim matrix]

it is

[winter tiger]

Good point!

[faint pasture]

it's a bit too compact as-is but you can at least tell what's going on. You can zoom in on a node cluster and you have nothing coming in from off screen

[mental trellis]

There's nodes overlapping other nodes, hiding input connectors and connection lines running behind nodes making the text harder to read and in some cases the connection is almost entirely obscured by nodes being placed on top of the lines.

Maybe that's a zoom issue, but eh.

I know it's a style a lot of people have adopted, I just find it awful. It's like having no whitespace in c++.

[faint pasture]

I'm not talking about the compaction, I can take that or leave it

I'm talking about the non-execution lines

[frosty heron]

If you need to move the object smoothly then leave it on tick.

When doing something overtime, you can use timeline, timer or tick. If you need to check every frame, you will use tick.

[faint pasture]

The blue fractal

[mental trellis]

That looks fantastic.

(I'm not saying it's good layout or not, mind)

It just looks cool.

[lusty oak]

Is there a way to access a variable that is on the level blueprint from another blueprint? I'm trying to check a bool but am not able to figure out how to get access to it.

[faint pasture]

I also prefer the default so maybe I'm just a bit nuts.
Manhattan style is just aweful and Subway isn't much better. You can't tell that 2 things are using Time unless you go check the other end.

[versed sun]

subway 45 ftw

[mental trellis]

I'd do something like the subway style but using reroute nodes.