blueprint

[desert juniper]

No other BP will receive an input if it's consumed.

[native ice]

that makes so much sense! thank you

i feel so stupid XD

[keen shard]

can anyone think of a reason why AI Move To would always fail with Destination Location but works when using an Actor reference?

[desert juniper]

You can print or debug the result

[keen shard]

ah thank you. didn't realize that. will try

[faint pasture]

Does anyone else here just say to hell with camera components and drive the view around by the APlayerCameraManager?

[odd ember]

I use a behavior tree for camera behavior: I could never wrangle the camera manager to work like I wanted it to

[keen shard]

it says blocked. i didn't realize ai move to was collision based?

[faint pasture]

Like an Unreal BT or a custom setup?

[odd ember]

unreal BT

[faint pasture]

Ours is basically a state machine but very simple

[keen shard]

like it appears to be standing inside the target.

[desert juniper]

yeah the documentation (https://docs.unrealengine.com/4.26/en-US/BlueprintAPI/AI/AIMoveTo/) doesn't have a lot of info on it, but here's the bit in the source code
(source code removed due to epic UELA 👿)

[faint pasture]

How/what do you execute the BT in? Without an AI Controller.

[odd ember]

BTs never needed an AI controller

[keen shard]

thanks for this. doesn't seem to be much there to answer why it would always be blocked, or why simply setting a destination wouldn't work. this seemed to work fine before 4.26. hoping it's not a bug 😬

[desert juniper]

doesn't look like the bUsePathfinding is accessible in BP, wonder if that would allow it to bypass pathfinding, and just travel straight to the location

[odd ember]

but basically it's all wrapped into a component, and used that way

I made some helper functions to start and stop the BT from the component

but that's it

[desert juniper]

as a sanity check, you have a navmesh that extends from where the AI is, to the target location?

[faint pasture]

Sounds pretty dope. Prolly overkill for what we're doing (top-down twin stick) but useful.

[desert juniper]

also, I've had a navmesh bug before where I needed to manually delete the RecastNavMesh object, and generate a new one to get AI to move correctly again

[odd ember]

you can debug it by using something like find navigation path or some such. I can't remember the exactly node, but you'd get an array of vectors that you could path draw debug lines between. I remember doing this for when I had issues

[desert juniper]

oh that sounds neat. I've not done that yet

[odd ember]

the best thing is having the BT interface exposed and just exchanging nodes at will

[desert juniper]

lmao, really?

[odd ember]

https://tenor.com/view/whoop-ass-fight-fighting-can-of-whoop-ass-open-up-a-can-gif-5606197

[desert juniper]

sure about that?

c. Distribution to other licensees - You may Distribute Engine Code (including as modified by you under the License) in Source Code or object code format, or any Content, to an Engine Licensee who has rights under its license to the same Version of the Engine Code or Content that you are Distributing.

i'm no legal expert, so I don't know if I'm interpreting that correctly, but seems that you can distribute code freely to other unreal engine users

nope. you're right

You are permitted to post snippets of Engine Code, up to 30 lines of code in length, online in public forums for the sole purpose of discussing the content of the snippet, or distribute such snippets in connection with supporting patches and plug-ins for the Licensed Technology, so long as it is not for the purpose of enabling non-Engine Licensees to use or modify any Engine Code, or to aggregate, recombine, or reconstruct any larger portion of the Engine Code.

[odd ember]

sounds like a pyramid scheme 😅

[desert juniper]

true. welp. deleting screenie before epic comes knocking at my door

[mint skiff]

hi, can i ask for help with a game using blueprint here?

[desert juniper]

yes

[mint skiff]

alright well i want to make it so the player wins when a certain pattern is made using blocks, the blocks currently change to a red material when clicked.

like there is an image to the side showing the pattern you need to make

how do i make that

[gentle urchin]

The solution is just a value made userfriendly,

And the blocks that can be clicked holds their respective value

[mint skiff]

well i am new to unreal engine but if im understanding correcting, i turn on a value once the pattern is made? idk

[gentle urchin]

You track the value whenever the player changes the pattern

And compare it to the solution

Lets say the puzzle is a 3x3 grid

The values of the locations in the grid would be
00 1 | 002 | 004
--‐-----------------
008 | 016 | 032

064 | 128 | 256

The solution is some random nbr between 0 and 511

Whenever the player click a tile/cube/puzzle element, whatever monitors the values gets notified

Did that make any sense?

Or it could be a bunch of bools ofc.. whatever suits your needs

[mint skiff]

kinda, i mean it would be cool if you could help me in like a call and i screenshare, this is actually my first unreal engine game, i only made clickteam games before, so yeah..

[gentle urchin]

If i had gotten that question 1 hour ago i prob would've said yes :p

[odd ember]

well if you're willing to pay...

[gentle urchin]

I do all i can to procrastinate lol

[mint skiff]

lol you're done for the day im guessing

[gentle urchin]

Yeah 😅🥱

[mint skiff]

ill see if i can use what youve already said, thanks

[faint pasture]

https://tenor.com/view/wise-thinking-gif-7768499

0.05 * $0 = $0

[astral epoch]

Hi I'm back with another dumb problem that probably has an easy solution.
I'm trying to attach a scene component to the muzzle-point of a mesh but it doesn't appear to be going to the right location.

All the "is valid" checks are succeeding. Its getting to that print "success".

Model in question with its "Muzzle" socket its looking for

In practice, the muzzle-point is being set to the grip.

Which I believe is 0,0,0 location

Any ideas what might be the issue here?

[desert juniper]

Does the weapon mesh have a socket named 'Muzzle'?

[astral epoch]

Yes, second screenshot.

[desert juniper]

ah missed that in the screenie

[astral epoch]

I'm gonna try adding something to the muzzle so I can see its physical location. It might be the particle effect isn't spawning properly.

Give me a sec

Okay the arrow is in the right place but the particle effect isn't going to where its meant to.

[desert juniper]

sorry, haven't yet worked with particles 🤷‍♂️ hopefully someone else that has can chime in

[astral epoch]

Think I figured it actually

I was previously using a vector location instead of the socket. Changed to socket so I can use different models without having to manually adjust the muzzle point.

Must have forgot to change that over.

[desert juniper]

awesome 🙂

[raw orbit]

need a little assistance please i dont quite understand why this bind is not working in my project

[astral epoch]

Okay so the issue appears to be that the socket's relative location is coming out as 0.

And Get Socket Location shows up as world space.

Is there no way to get the Socket Location relative to the mesh's origin?

[raw orbit]

solved my own issue, i think

needed to tick this

[faint pasture]

You can probably just set that on the CMC defaults, no need to do it at runtime.

Tons of settings in the CMC

[raw orbit]

what does cmc stand for again

[faint pasture]

character movement component

[keen shard]

omg i think this was it. i turned on showing navmesh, and it's blank right in that spot due to a nav blocking mesh. will test in a minute to make sure

is there an easy way to have my static mesh with no collision not block the nav mesh?

nvm. found it.

nav area none

[desert juniper]

yeah there's an option in the SM

glad you found the issue 🙂

[keen shard]

ah, boo. still says blocked

[desert juniper]

in that case I'm not glad 👿

[keen shard]

hahah

[desert juniper]

mind sharing screenie of level with visual navmesh (P) on? (if you're able to)

[keen shard]

it's weird, the ai pawn makes it to the actor. like, if i checked an overlap event it would happen. but then fails.

ya one sec

[desert juniper]

wait, so the AI does move towards the actor, but at some point it stops, and the movement fails?

[tight pollen]

how can i change space between the walls nav mesh bounds

?

[keen shard]

it walks all the way to that goal actor. stands on it. then fails

[desert juniper]

oh that's interesting
does it do the same thing if you increase the acceptance radius?

[keen shard]

yeah, i set it from 10 to 500. still fail

here's the actor standing right on top of it. (it's a gem looking thing)

[desert juniper]

Like you're trying to make the gap between the navmesh and the walls smaller?

[tight pollen]

yes

[desert juniper]

odd that it fails when it arrives. does it always say blocked?

[keen shard]

yeah.

what's also strange is that when i put in the location of this gem, and use that instead, like this, then it fails instantly.

[desert juniper]

In the world outliner select the RecastNavmesh object
then in the details panel, try lowering the cell size, or agent radius

[keen shard]

ok wait- it looks like now that the navmesh is working underneath it, the location is working properly

and is finishing with success. but actor as a target is still failing.

[keen shard]

would be nice to know why, though, so will check this

[desert juniper]

yeah I'm struggling to see why it's failing

[tight pollen]

thanks

[desert juniper]

other than some weird bug introduced due to networking

(such as if actor moves, and you aren't replicating the movement)

Here I'm doing the same, and it's succeeding regardless if it uses the actor (as shown) or if I get the actor location and use the vector

Is there any other logic you have that may be hijacking the AI's movement?

[idle crescent]

Is damping sufficient for simulating flying drag/lift? Or should I work more on importing/integrating a Flight Dynamics Model(FDM) to UE4/5?

[pale flare]

can someone tell me why this isnt working

everything else works but is it because i am constructing this twice

[runic parrot]

Hi! does anyone know if there's an already premade function like "Timer handle" but that works like a cronometer? i want to start it and keep track of how much time passed

[keen shard]

combing through it to see

[keen shard]

alright, i disconnected all other code. now it just walks to the thing. i tried swapping out actors, and it works with one of them.

the actors are almost identical, but will dig in to see if i can find any difference that would cause this to wig out

this is so strange. i've checked every single property between these two actors, and they're exactly the same. same assets attached to the root scene component, same class defaults, same class settings, same properties on evert scene component. same properties in the level editor. one works with ai move to, the other doesn't

is it possible it's some weird corruption from upgrading from 4.19 to 4.26?

[desert juniper]

it's always possible, it's a pretty big jump. but I find it very odd

[keen shard]

i had some widgets i had to rebuild due to some odd behavior

[desert juniper]

did you try deleting and regenerating the RecastNavMesh by any chance?

[keen shard]

ah right, lemme try

[desert juniper]

also, give this a shot if that doesn't work. Right click the Content folder in the content browser and hit Resave All

I've had that fix some odd BP bugs in the past

[tribal stream]

Why is this not working?
I want the building meshes to start moving towards me after I start the game when jumping.

[tribal stream]

everything look technically correct, but it just doesn't work.

[tribal stream]

maybe it is not possible to boolean an event tick?

[grand valve]

what is your block speed set to?

[tribal stream]

-0.75

-50**

[desert juniper]

is this BP (in the screenie) on the object you want to move, or on your character?

[tribal stream]

on the building blueprint. Not the character's.

[desert juniper]

go to the character BP

do you have a InputAction Jump event there?

[tribal stream]

yes

[desert juniper]

click it then in the details deselect 'Consume Input'

[tribal stream]

it enables the gravity after I press space bar

[desert juniper]

then try again

[tribal stream]

still, not working

[tribal stream]

actually, the print strings here are not working at all for some reason

[desert juniper]

do any of these print?

[tribal stream]

nope

[desert juniper]

either you haven't accepted input, or you are consuming the input

(i think)

[tribal stream]

what do you mean with "consumed"

do you mean, you can't really use the same button twice in two different blueprint when they work together?

so unreal can't really know which one to play first?

[desert juniper]

if one BP is set to Consume the input, then it won't allow other BPs to use the input anymore

It'll basically cancel the input event after it does whatever it needs to with it

[desert juniper]

you can, as long as neither of them are set to consume the input

go back to building and make sure that one isn't consuming input as well

[tribal stream]

Idisabled both of them

[desert juniper]

and your prints aren't working?

[tribal stream]

yes

I know I can do it in another way, using event dispatcher, but a guy earlier told me to try as much as possible to leave local events to their owners.

[tribal stream]

It was probably you, if I am not mistaken.

[desert juniper]

probably not. I like event dispatchers

[tribal stream]

you did not tell me not to use event dispatchers, you told me to leave things to their blueprints

[tribal stream]

that's of course, if it was you.

ok, I think the issue is with the 2nd blueprint

the building blueprint

[desert juniper]

hmm I feel that you're misremembering, I told you about setting vs adding location, but that's besides the point i guess

[tribal stream]

I tried deleting the jump input from the charactercontroller BP to see if it was interfering, but it wasn't.

[tribal stream]

oh

it was @grand valve

I just remembered lol

[desert juniper]

try this

in the building

after begin play, call the Enable Input node

[tribal stream]

done

[desert juniper]

now try and see if the building accepts the input

[tribal stream]

nope, it doesn't

[desert juniper]

is the building a pawn? or just an actor?

[tribal stream]

an actor

wait, is this why I can't give it input?

since it is not a pawn

so it is not controlable.

[desert juniper]

no, it should be able to receive input

[tribal stream]

will test it on a pawn

that sounds right......

[desert juniper]

you'd likely need to have the pawn possesed however, and switch back between character, and pawn.

don't think that's the right way of going about it

@tribal stream when you enabled input, did you add the player controller?

[tribal stream]

nope

[desert juniper]

try that, and see if it works

[tribal stream]

yes, it worked!

Thanks @desert juniper

[desert juniper]

👍 awesome

[tribal stream]

What was the issue though?

so I basically told unreal to enable my keyboard bindings in this specific blueprint?

[desert juniper]

a combination, the player was consuming the input, and you didn't have inputs enabled on the actor

[tribal stream]

ah

[desert juniper]

also, if you don't want to do this on begin play
you can edit the class defaults of this BP to have Auto Receive Input set to Player 0 (instead of Disabled)

[paper python]

Hey all!
I am trying to make it so that an Actor teleports from positionA to positionB instantly, but its visual representation (StaticMesh) goes there slowly, using a timeline.
The part I am missing: what can be used to 'detach' the Static Mesh from Actor's transformations, and then reattach later?

[keen shard]

rebuilding nav volume and nav mesh had no effect. resaving the project which looks like it might take... a while. will probably just make a new target actor and move on from there. but if you're curious i'll let you know if this resave-all works. anyway, fixing that initial navmesh issue got me in a place where i can check the bug of the list and move forward with my life. so the help is VERY much appreciated!

[tribal stream]

Done 👍

[desert juniper]

just a theory
maybe you can store the actors starting location, teleport the actor to the new location, then teleport the mesh component back to starting location
Then start moving the mesh component back towards the actor

[desert juniper]

darn, I'm sorry. it's anoying when you don't know why something doesn't work, and then don't know why it does later
def ping me if it solves it. at least for now you got something that does work, so that is good news

[desert juniper]

also, if that's too much of a hack, maybe you can just disable the mesh visibility on your character, spawn a new actor/bp, and move them towards the intended location. then destroy them when they reach the destination

[paper python]

This sounds like more of a hack 😅 This is for a turn-based roguelike, so would be happening with a measurable amount of Pawns every turn. So probably going to try the first idea

[eager plank]

Im making glasses that the player must pick up in order to unlock something, any clue why this code for the pick up is not working?

[jaunty crow]

what part of it isnt working? like is the has glasses being set or what part isnt working?

[eager plank]

just when i hit play and go over in the box collision and press e it doesnt pick up

[jaunty crow]

I would try some print statements just to double check all the functions are running like your enable and disable input and one to make sure the input interactions event is running so you can fine tune what your problem is

[eager plank]

how would i do that

[jaunty crow]

try something like this

So where your input action event is you want to connect that to a print string node and then connect that to the gate

This means when playing when you press the input action key it will print whatever text is inside the print string node to the top left of your screen

This is good for checking to make sure inputs/functions are correctly running.

[eager plank]

i fixed ir

i had to make my box collision the same name as the object i wanted to use the glasses to be able to interact with

one more question

do you know how to edit a particle in a blueprint

as far as location

and scale

nev

[jaunty crow]

I think you should be able to find a video on that pretty easily

i found a few from a search

[eager plank]

yep

i forgot to compile and save

lol

thats why i didnt see a change

[jaunty crow]

oh lol

[low birch]

Movement Replication Issue - Jitter

Anyone familiar with movement replication for a P2P? I'm currently experience client jitter on movement input. Something like gravity is not affected.

[keen shard]

@desert juniper resave all didn't fix it. started making a new actor. and noticed that this actor that didn't work was about 0.5m higher off the ground than the other actors that did work. moved it down to the same height as the other actors... and now it works. i really thought that the acceptance radius was in all directions. but i guess its... not.

in my testing, it appears AI Move To will not work with an Actor as a target if the actor is too far off the ground from the nav mesh.

even if the actor is overlapping with the other actor, that doesn't seem to matter. it looks like it's the actual world transform location of the AI pawn compared to the WT of the target actor.

you would think they would project both onto the same 2d plane and then work out distances from there, but that doesn't seem to be the case. maybe i'm wrong. i'm tempted to write a wrapper utility function that takes care of this.

[desert juniper]

uhh... I'm shook. I had no idea it didn't take vertical distance into account. I thought it was a sphere, not a simple 2d trace.

[keen shard]

yeah. pretty wild. lemme know if it works out different for you in your testing

[desert juniper]

damn. well thanks for sharing. that is.. kinda fucked up 🤣
like you mentioned, wouldn't be a bad idea to create a wrapper function that fallsback to a simple linetrace on fail

[keen shard]

ahhh yeah, that would be a perfect wrapper. yeah i feel like its one of those things that doesn't really come up 99% of the time.

[desert juniper]

not blocked, but it does abort

and not all the time, sometimes it succeeds, even though they're all at the same height. that'd be an anoying bug

[keen shard]

so it succeeded once, and then aborted the other times?

[desert juniper]

yeah looks like it

moved the target points much higher, and increased the acceptance radius to 5k

aborts all

[keen shard]

crazy.

[desert juniper]

even at 50k acceptance radius. so yeah, absolutely shows height definitely has something to do with it.

wouldn't have guessed 🤷‍♂️

[keen shard]

same! i'm guessing it has something to do with navigating to an area that is up some stairs above where the player currently is

seems like if it's too far above the middle height of your average character component collision capsule it doesn't work anymore.

[desert juniper]

Well, great job finding the reason behind it!

[solar sequoia]

if the actor is replicated, I'm pretty sure you just don't have to run that on the server

[solar sequoia]

this works without jitter

[low birch]

Cool, thank you for the direction. I'll take a look into what my character is doing replication-wise.

[versed plover]

Hey having an issue with a blueprint, Says It can't read the branch, unable to find the issue, but I've been frustrated with the whole thing all day, so I was hoping to get some help?

[faint pasture]

Show the error

[faint pasture]

@versed plover Levelmanagerref is invalid

Read the errors, they tell you what's wrong

[versed plover]

I know that, but I can't find out why it's invalid

[gentle urchin]

Probably not set

Object variables are empty by default

They need to be updated to some instance

Not sure how you're doing that at the moment

By some means you must fetch the reference you're after

[versed plover]

okay, I'll see what I can do thanks.

[modern notch]

moral choices and interactive storytelling

I Want to make a Widget Button somewhere in the level, so if the player went there and click on it + it will destroy a specific Actor (which is already set in the level) and replace it with another actor. so right now if the player went there, he can see the actor is changed ( NOTE : actor can be a NPC with some dialogs so they can tell us different dialogs and things based on the actors ) . fell free to talk if you can help

[desert juniper]

how about making an actor with a widget component

set the widget to screen space

[gentle urchin]

You could create a bus for it 😄

An 'Event' bus

With some tag or ID

That can be reacted to by anyone 😎

Basically a dispatcher that anyone relevant is bound to

[modern notch]

cool idea ! don't test this, can I get reference to actors just like triggers ? because the way of referencing things in widget BP is different

[desert juniper]

assuming I understood you correctly, the way I have interactable objects is
they have an interactable component
and a widget component to indicate they are selectable
when player presses e it performs a line trace
if the object is interactable, then it calls the Interactable function on the object

whoops, meant to reply to you @modern notch

anyways, then you can override the OnInteract (On the InteractableComponent) function on your object, to do whatever you want it to do

(in your case, replace it's mesh with another SM/Skeletal Mesh)

[gentle urchin]

Sounds more like they wanted to replace the entire actor so that theres different dialog going on

(Which could be just swapping the dialog options out but oh well)

[desert juniper]

ah non data driven

[gentle urchin]

Just by what's been told, i could be way off for sure

[modern notch]

want to swap between two actors, one of them is set in level as default. one of them is a second actors. if the players goes into a specific area and interact with a widget button, it will destroy default actor and spawn second actor

[modern notch]

here you can see that I already do this with Triggers, but want to do it with Widget button

[gentle urchin]

Spawn a widget, bind to a delegate in the widget

As suggested by Amaze

[modern notch]

do it with a blueprint actor with widget component or a Widget UI ?

[gentle urchin]

Depends on your needs i suppose

Personally id prob add it to the screen with a regular widget

[modern notch]

see what i can do, thanks :))

[pale flare]

anyone know how to reference a struct blueprint

or someway of changing it

[gentle urchin]

what is a struct blueprint?

[icy dragon]

Maybe referring to struct assets

[sturdy herald]

Hello. Struct Blueprint is like a custom Variable

U need to create a new variable in ur blueprint and set the type to ur struct.
In my example this TempProgram Variable is a ProgramStructBP variable type, which struct was created by me. (btw this is how EnumBlueprints works too).
U can even set it to array, but a little bit harder to work with that.

[sturdy herald]

Structures are a variable type where u can have a lot of different variables.

https://docs.unrealengine.com/4.27/en-US/ProgrammingAndScripting/Blueprints/UserGuide/Variables/Structs/

[limber olive]

What are the equivalent variables for this?

[gentle urchin]

I'm aware, just never heard the term struct blueprint

Normally its just struct ^^

[sturdy herald]

Structures is a common thing in a lot of programming language. The way UE implemented in Visual Scripting is to create a Blueprint for that, working the same way for Enums. I think its pretty creative and nice how they maked it. Usefull and easy to use after a little time.

[gentle urchin]

BP structs are pretty fragile/error prone tho, I would strongly suggest making a c++ struct for it instead

Stays ok as long as you dont modify it I suppose

[sturdy herald]

Had no problem with it yet using. And in my project im using it a lot, modifying, adding elements to a Struct Array, mb there can be errors with it, but i dont found any yet.

[gentle urchin]

As long as you dont modify the struct itself*

change variable types, add and remove variables from the struct

I've had structs break many times

stuck in infinite cache loop

each time you open the project you must manually remove and re-add the struct breaks etc

a pain 😛

A struct in cpp is also quite easy to make;

Makes for a nice entry to c++ if ever there was one 😄

[sturdy herald]

Well, as long i have no problem with this i dont change :))
But after this project i'll start to learn C++ (i learned Pascal and C, and C types (for arduino, PLC programming) so i think i'll have no problem with it, just simply had no time to start the new language yet c: )

[foggy escarp]

Does cpp have a lot more capabilities to simple things like structs?
Like can you edit the original struct within code, compared to blueprints where you have to make changes for the individual bp's?

[gentle urchin]

Im also working with PLC programming lol 😄

[gentle urchin]

define "edit the original struct"

It does have some extra functionality aswell (or atleast one can make)

[foggy escarp]

Well just more capabilities in gender i guess

[gentle urchin]

with the support of custom functions to it

That and them generally being safer

doesnt break like bp struct can do

[limber olive]

found the answer but I'm not sharing

[gentle urchin]

How nice of you

What goes around comes around :p

[lime trellis]

Hello,
I up a time in case of someone now 🙂
I really don't know from where the problem come
Have a nice day

[gentle urchin]

Tried compressing the animation?

I've had that help in some odd cases like this

[lime trellis]

compressing ?

[maiden wadi]

Squishing!

Crushing!

Kasplatting!

[lime trellis]

🙂 I mean where can i did it ? I never saw this option

[gentle urchin]

In the animation

when you have it open in ue4

[lime trellis]

The problem is still here but at least i have learned this option 🙂

[maiden wadi]

... I went searching for that. Got plugins and tech blogs and a bunch of other stuff. NOTHING ABOUT A TINY LITTLE BUTTON.

[gentle urchin]

xD

It was a shot in the dark

Nobody likes compression

[wicked osprey]

Guys, I have such a question. I have a recharge implemented via a timer. And the fact is that for a revolver, I need to call this logic for the first time with one time, and when he already starts stuffing cartridges into it, then change the timer call time. That is, the animation is played like this:

1. the character throws the used cartridges from the drum and puts the first cartridge in. This period lasts for example 1 second
2. But then, the animation will loop until either until I fully load the revolver, or until I run out of spare cartridges. And this period of stuffing cartridges will last for 0.25 seconds.
   Will I have to make an additional timer and create an additional variable?

[gentle urchin]

Not sure how people normally solve this but i'd think it'd be solved by the animation ?

[earnest tangle]

Animation Notifies seems like a fairly straightforward method of doing the above yeah

[gritty plover]

Hey, this detachfromcomponent node is setting the component's location to 0,0,0 regardless if I set it to Keep World or Keep Relative. What am I doing wrong?

[wicked osprey]

I was just told that sometimes notify may not be called

[earnest tangle]

I guess you'll just have to use a timer then if that's the case

[sturdy herald]

I dont know why it isnt working for u, but can set his transforms to a variable before detaching and giving it back to him from that variable after detaching

[late cave]

How do I hide the "default scene root" white ball?

The visible checkbox doesn't do it for some reason...

[maiden wadi]

There is an EditorBillboardScale, but it's actor wide. Nothing specifically for one component.

[late cave]

yeah, found the thread about it, so that's not a solution for me I think because I want my custom icon to be visible...

(and that custom icon is "editor only" so it can't be the scene root)

[grim peak]

Hi,, I have question.

I have Main screen map and this loads a PlayerSelectMenu, from
the PlayerSelect it loads my GameLevel map.

The problem is doesn't show the right player but always the UE_Mannequin.
I Believe the code for PlayerSelect is correct, but other things are
incorrect set in the WorldSetting or PlayerControler/ThirdPersoneGamemode

If I'm in the GameLevel map it doesn't the right HUD or some PickUp Coins
So where should I be looking/checking?
I have set MyGameInstance in the projectsettings (variable for My character) so it remember which character I have chosen when I goto my GameLevel.
ANyone have any ideas?

[earnest tangle]

I can never remember which order the vectors go for calculating the direction vector between two points... but TIL this exists :P

This seems to just be a wrapper for that vector math but with helpful parameter names lol

Thanks for the attempt but that's confusing lol

I mean the part that confuses me is that 0,0 is a, but then you're making a the new origin? Isn't 0,0 usually considered to be origin?

Let me try and draw it with layers and let's see if it makes any more sense lol

I don't know :D

Yeah I just don't have the intuition for that explanation to make any sense for the order of operations :D

I appreciate the effort but I don't know if it's worth it, I can just google it :D

Some day I'll remember it :p

Yeah like I kinda follow the logic there... kinda

yeah I suppose so

[maiden wadi]

I always just remember Unreal's implementation of it.

Target - Start

(To - From).GetSafeNormal();

[tight pollen]

can i use stream level bounds volume only for map visibility?

I'm creating a multiplayer game

I would prefer the map to be always loaded

and only visible when a player enters a field

won't such a practice hurt in multiplayer?

?

[eager plank]

Im trying to make it so the player must build hut, an objective. The only issue is I want to make the hut be kind of greyed out in the beginning and then when the player interacts with it using a stick it'll make the hut appear. Im thinking of doing this by changing the opacity of the object in the beginning and then when the player interacts, I change it back to normal. Could this work?

[gentle urchin]

Can you set opacity on a mesh directly?

[eager plank]

i’m not sure

[gentle urchin]

Id imagine using a material would be good for this

[eager plank]

if you can

oh just changing a material

To be honest with you, im pretty new to unreal so I don't have much knowledge about materials or switching things out. Do you mind explaining how i would do this, or if you have a video i could see that could maybe explain it. I've tried looking it up but nothing seems to pop up

thanks, watching a vid right now

[maiden wadi]

Just don't put a timer on tick, with a delay in it that calls get all actors of class, and runs an interface function on all of them.

[eager plank]

yeah im going do it that way, i think it just makes more sense to me

[gentle urchin]

Scalar on a timeline is acceptable

[tight pollen]

Can anyone tell me what to look for when using streaming level in a multiplayer game? and answer the questions abowe?

[gentle urchin]

#multiplayer may provide more answers

[tight pollen]

ok

[ocean delta]

hey guys any clues as to how id go about rotating a camera around a pivot on the top down example blueprints

specifically id want to move the camera around the player while they move

im not 100% sure wym but i want to be able to move the camera in 90 degree increments with button presses and not with my mouse

since the mouse is the movement system in the blueprint i mentioned by default, and thats how i want it to stay

[gentle urchin]

On key add local rotation to cameraboom

You may need to remove and add the XY rotation that already exist

To get the correct rotator

[minor panther]

hello, does anyone have any idea on how to make the third person camera camera pivot on the player, we got the camera working but the player goes off screen which we don't want

[pale flare]

make the camera a child of your third person character

[minor panther]

w the springarm too?

[pale flare]

anything that needs to stay with your character yes

meshes, cameras, etc

[minor panther]

is this what you mean? if it is, the camera doesn't stay anchored to the player

[pale flare]

you made it a child of the spring arm

not your character

[minor panther]

did that and nothing happened still, camera doesn't behave any differently

[pale flare]

im not sure why it wouldnt be

[maiden wadi]

Spring Arm needs to use ControlRotation

[pale flare]

if its a child of your character it should keep its position relative to your character

[minor panther]

where is that found?

[maiden wadi]

Select the SpringArm. Should be in the Details panel.

[pale flare]

now i have a question lol

[maiden wadi]

UsePawnControlRotation

[pale flare]

i made a struct for my characters stats but i cant seem to change its variables

[minor panther]

i had it like this and i played it, doesnt work

i ticked it and it doesnt work either

[maiden wadi]

Camera is attached to the Spring Arm?

[minor panther]

yea

[maiden wadi]

How do you do your mouse controls?

Or whatever you're using to look around

[maiden wadi]

BP Struct?

[pale flare]

yeye

[maiden wadi]

Odd. You should just be able to put a new property of the struct type on the character, everything should be editable when selecting it.

[pale flare]

i mean to edit it from another blueprint

[maiden wadi]

You have to get the struct, and set it's members.

Uh. Sec

[pale flare]

i tried changing the variables inside the struct like this

[maiden wadi]

I generally try to avoid the make and break where possible.

[pale flare]

i tried the other way as well

both didnt work

[maiden wadi]

If you do this and click on this node, it'll give you specific inputs.

You can set the values directly that way.

[pale flare]

ill try it

thank you

[maiden wadi]

This looks pretty normal. I can't imagine why it's not working if you have those settings on. I have a similar setup for my battle map camera.

SpringArm

Camera

[minor panther]

you can just about see the character but that’s with your camera settings

[maiden wadi]

Looks like your spring arm isn't set long enough or that your camera isn't set at 0,0,0 relative location on the spring arm.

[restive token]

What’s the best way to localize subtitles? The built-in subtitles are strings right? So you cant use that

[maiden wadi]

Depends on what they're for.

Generally speaking, I'd recommend keeping any user facing text in StringTables. Makes gathering through the dashboard and reusability much cleaner.

Ah. You're asking about the default Dialog system? Not a fan of that thing personally.

[minor panther]

i set the spring arm back abit and everytime i rotate, the camera shakes

[minor panther]

this video is when i made the springarm and camera the child of the sprite

the camera doesn’t pivot around the character

[maiden wadi]

Really not sure with 2D stuff. That setup normally works.

[pale flare]

so i cant get my stats to save

no matter what i do i cant get it to save and pull properly

everything else works fine

but i also noticed that my values in here dont change

so im thinking thats probably why?

[maiden wadi]

Those look like defaults. Shouldn't have anything to do with saving and loading.

[pale flare]

thats why im confused

[maiden wadi]

Where are you getting the Stats struct from when you save?

[pale flare]

wdym where

[maiden wadi]

Stats here.

You're saving it in the SaveGame. Where is it being set from?

[pale flare]

its a variable reference to my struct called stats svae

struct stats*

[maiden wadi]

Right. But if you're not changing it, it's just going to save defaults. So where are you changing it's values?

Nothing in what you posted explains what is in that struct.

[pale flare]

i am trying to change my health

which is stored in struct stats

[pale flare]

^

[maiden wadi]

And Failed isn't printing? It's finishing the Save fine?

[pale flare]

its not failing

thats the first thing i checked

[maiden wadi]

And this saving/loading is in the BPPC?

[pale flare]

my player controller

so yes

[maiden wadi]

Oh

[pale flare]

is that a no no

[maiden wadi]

The Struct SetMembers at the end of that.

This here isn't doing anything. I think you meant to set one struct as another one here.

[pale flare]

let me try

[minor panther]

it does pivot on the character a little weirdly but it works, the only thing is that it doesnt have the character in frame fully

[pale flare]

so i made 2 different structs, one for the save file and one for ingame use i guess

ok im not exactly sure how but its working

lol

so thanks

well it was and now it isnt

and now its working again lmao

woooooooo

[eager plank]

Is there a way to change opacity of object with a node?

[pale flare]

yes

[eager plank]

oh

[pale flare]

something like this

?

or how do you mean

[eager plank]

can you change an object to translucent

and then to opaque

using node

yea right

[slow pewter]

When i click sometimes on my Buttons i get this Error-> EXCEPTION_ACCESS_VIOLATION writing address 0x0000000000000009 , i guess its about a Loading Problem or? its super Random // at Runtime

[eager plank]

how do you get a node like this but for static mesh

[eager plank]

this sorry wrong reply

[slow pewter]

u wont, u will need an Mask for that and an Special Material

[pale flare]

i was about to say i dont believe static meshes have a texture

[eager plank]

can you instead switch the material completely

like have one and then apply another

thats what your saying i should do

[slow pewter]

Static Meshes only means they are not moveable like an Character

[pale flare]

my bad diggity dog

[eager plank]

lol

[slow pewter]

on Material Instances yes,

[eager plank]

can you swap material instances for an object in a bp

[slow pewter]

ofc

[eager plank]

cast to material instance?

[maiden wadi]

You don't necessarily need to break this here. In this instance you can set the struct directly since you're overwriting the entire thing.

[pale flare]

they are 2 different structs

so it wouldnt let me do it without breaking it

[eager plank]

can you explain how i'd go about actually doing this though. I just want to change opacity of object or go from translucent to opaque

[maiden wadi]

They're the same type though.

[eager plank]

Authaer, do you know how I can change the opacity of an object using a bp

[maiden wadi]

Materials are your only choice.

[eager plank]

so changing a material from one to another

[maiden wadi]

Easiest probably to make two materials to start with and swap them.

If you need a fade in, you'd make a material instance and lerp it's parameters in a timeline or something.

[eager plank]

what I'm trying to do is how in games you say place a house down to build right and its opacity is low and then when the player gets the needed materials and press E to build house, the opacity rises to show it's been built

changes from say 0 percent to 100 percent

[gentle urchin]

You can do pretty cool stuff to simulate building with materials 😄

[eager plank]

how do you set visibilty using the node

I have an event begin play connected to a Set visibility node, how do i make that visibility 0 though?

[dawn gazelle]

The "new visibility" option on the node is what turns the visibility on and off. So if you set it false the target scene component won't be visible.

[eager plank]

thanks

[terse ivy]

Hey guys. I'm trying to set a post process , which contains fog of war, on my character. Everything's working, except when I try to change blend weight into anything between 0-1, it applies the blend as if it was full (1).

What I mean by this, is that 0,0 means it's completely off, but with 0,001 it goes all out. How do I change this to a more fluent change?

[neon sorrel]

Anyone know why my line trace would be picking up objects through another object? Ive setup blocking collision and it still goes through it.

I have a item behind a wall that I want the user to not be able to pickup through the wall for obvious reasons, yet somehow the user still can currently and im not sure how to fix that

[odd ember]

if the trace channel isn't setup to work with the collision it'll go through it. thankfully there's some good debugging options for trace that will show you exactly what's happening

[neon sorrel]

If im right with what I read if I have a mesh blocking Visibility channels would it not block that properly and prevent the trace from going through?

The debug shows it hits the wall but then goes through and still picks up the item behind the wall

[odd ember]

it should yes, but I havent seen your setup

[white elbow]

is there a way to reference a variable in another blueprint?

[neon sorrel]

I messed around with collision and managed to get it working somehow, Thank you though CE!

[mild crystal]

yes you can cast to the actor that you have the variable and then set in.

[white elbow]

I thought Cast To is for checking whether your target is correct class, or something like that

[mild crystal]

For exemple you can have a variable in AnimBP and tell its true if actor is close to a wall. For this you can in level bp do the close target coding and at the end cast to anim bp and set variable true

[mild crystal]

came dm to explain me what you wanna do

[eager plank]

I made this to make the visibility of the object zero when i start game yet it's still visible...

[odd ember]

well you set it to be visible

[eager plank]

thats what i might of that

In this first pic is a box collision showing that if the player steps in box collision, set fire complete true. The next pic is beginning at event play set stick not visible and then next to it, if Fire complete is true, set visibility of stick true. The thing is when i get into the box collision the stick doesn't become visible

btw the target of the get Fire Complete is the first person character

[last abyss]

you need to call the event that is on your character, in your box collision code. You are never actually Executing the event "begin" (at least not from these snippets)

[wicked osprey]

Guys, how can I make it so that the model does not pass through the wall? For example, if I throw out an object that has physics activated and start leaning it against the wall, then at some point it will go through, and with low FPS it’s generally terrible. I know that the physics in the engine depends on the frames, but is there a way to fix this problem without overloading the project?

[odd ember]

how is this a blueprint question?

[unreal quail]

pov you alt clicked a reroute node

wth is this

[gentle urchin]

Time to quit

Alt+F4

[unreal quail]

I just did 🥲

[jovial charm]

how would I go about increasing ai's health per round? it has all the health, max health functionality and round system

I done get max health + float, add 50 and then added it to current health?

[faint pasture]

I'd update max health then reset health

[jovial charm]

how would I go about that ^^?

[faint pasture]

Set the new max health, then set current health = max health or whatever. Super simple.

Depends on if it should update or if it's only for new ai characters that spawn

[jovial charm]

@faint pasture Thanks :) ill try that

[terse ivy]

Am I using the wrong command or why does the Blend Weight seem to go to 100% as soon as I set it to even 0,001?

Been trying to figure this out for some hours now and can seem to figure it out :d

Otherwise the PostProcess seems to work exactly the way I want it to. It's just so intense when giving it any value over 0

[odd ember]

in the screenshot you only switch between 0.0 and 1.0

[terse ivy]

But even if I change the other one to 0.1 it looks the same as 1.0

[odd ember]

probably more a problem with your material than with the blueprint then

I'd change it as a parameter on a dynamic material instance

[terse ivy]

Could it be like "too intense" or something?

[odd ember]

what?

[terse ivy]

Nah never mind. I was just thinking if it could be so "intense" that even at 0.1 it'd be pretty much the same as 1.0, but that can't be the case right?

[odd ember]

I don't know

[terse ivy]

Since the post process is more like a layer on top of the view

[odd ember]

it's your material

so only you can know this

[terse ivy]

I have both material and material instance set

as well as material collection

[odd ember]

I don't know your setup. like I said I'd change it as dynamic instance parameter instead of bothering with blend weight

[terse ivy]

you mean as in "scalar parameter value"?

[mild crystal]

how can i check if a animation ended?

[odd ember]

yeah or whatever your parameters are

[terse ivy]

because I'm using those to set the parameters, anyhow I wish it wasn't applied until later on in game

but should I just set it to like 5 million then and call it a day?

or will that cause problems with fps etc?

[odd ember]

I don't know what any of that means

you're assuming that I know everything that you have done

[terse ivy]

just a sec, I'll try to get some sort of logical collage to explain wtf is going on here 😄

[mossy perch]

Why does this work but not when set per event?

[odd ember]

maybe damage never triggers?

[astral epoch]

The "Spawn Decal Attached" node has a location input that says it can vary "depending on the value of Location Type" between relative and absolute world. Does anyone know how exactly this is determined?

[faint pasture]

Print something on event any damage, does it work?

[mossy perch]

Yea it does print

[mossy perch]

It does

[mossy perch]

Only 0 makes the character ragdoll.

[mild crystal]

is there a way to put a condition

that when generate a new random in range

is not equal as the last he generate

[timber knoll]

Cache the previous and do a while

Would be the easiest approach I think

[mild crystal]

ok thx

[tropic inlet]

for loop I guess as well?

[dawn gazelle]

This is running in standalone?

[mild jacinth]

hi i'm wondering how it would be possible to basically know when node called 'set view target with blend' has finished 'animating' the camera. is this possible?

[trim matrix]

you could tick it or add timeline to its blend time and when it hits the number you want it will print?

@mild jacinth

Hey anyone know how can i get reference out of my widget from a bp? Create widget doesnt work.

[short pawn]

You could make a print string after a delay of the blend time. Also I'm not sure if this would work because I'm not sure when they consider it the next view target but you could use the get view target then add a branch to see if it is = to the new one

[short pawn]

When you spawn the widget you could cast to the BP you want it in and set the variable in that BP to your widget

[trim matrix]

i dont spawn the widget

i have a 3d widget

[short pawn]

On construct then

[trim matrix]

ahemm??

from widgets construct?

I want to make stuff happen from my BP that is handling the 3d widget

I already can talk from widget to the BP

but not from BP to widget

[short pawn]

Do you try get all actors of class?

[trim matrix]

yeah and i tried the get all widgets of class

get all actors of class dont work with widgets

[short pawn]

Why don't you set up the functionality in the widget. Like when it is focused

[trim matrix]

ahh now it works i had to take the tick away from top level only

[short pawn]

Nice

[trim matrix]

what a nice fix

Shoulda read that though thoroughly as it says only direct children of the viewport will be returned

[tribal stream]

My game's behaviour and physics is a bit weird. It plays differently in different viewport playing modes. Why is that?

I am sure it is related to frame rate.
In standalone game mode, the game feels decent. it plays on 144hz I think.
On normal viewport play, it is roughly playing on 72 frames

in PIE mode, it plays on 48 frames

the 144 hz is different in terms of physics and gravity from the 72

the same applies to 48 frame

and yes, I made sure I do all the necessary compensations in event tick by multiplying the delta time.

[trim matrix]

Does anyone know if there is a way to create this same system in an easier way, for example, taking all objects that have a certain material and removing the collision and visibility

[waxen knot]

so I am making a horror game and I am trying to make the jumpscare to where when it is triggered then the viewtarget switches to a different camera but I can seen to get it to run a custom event from the enemy to the level blueprint anyone know how

[odd ember]

how is this a blueprint question?

[odd ember]

show code

[waxen knot]

I deleted it out of frustration

[odd ember]

probably for the better, jump scares suck

[waxen knot]

well I mean its gonna be a huge part of my game so I kinda need it

[odd ember]

then why'd you delete it

seems silly

[waxen knot]

cause I got frustrated and it was like 3 AM

[keen shard]

I think the main issue people here are going to have is that an answer to your question would effectively require someone to write the feature for you. But the goal here is to answer questions for specific issues in your code.

[waxen knot]

well what I was thinking is that I could make a custom event with all the things I need in there and call it from my enemy

[keen shard]

it seems like the main issue is getting access to the custom event of another pawn. you'd have to get a reference to the enemy, and then cast it to the class of that enemy

from the class casting you'll get a reference that should have the custom events

[odd ember]

I can't really help without seeing the code just so I can get an idea of how you wanted to do it

[waxen knot]

ok give me a sec

when the jumpscare is triggered the enemy would call on this event witch will set the viewport to a camera I attached to the enemy

the problem is that this is in the level blueprint and I dont know how to call it from the enemy

I would have it in the enemy blueprint but it wont let me change the viewport

[tribal stream]

Because it might be related to event tick.

[odd ember]

I hope you practice gymnastics because that was a strech

[keen shard]

needs a player controller as target, no?

[odd ember]

maybe try the profiler and see what's causing the issue first

[tribal stream]

I mentioned that the frame rate is different in each play mode and so is the physics/gravity. That's what makes me think it is an event tick issue.

[odd ember]

you do realize the entire game runs on tick right?

it makes no sense to assume that it's BP related without proof

run the profiler and figure it out

[tribal stream]

Will try this.

[waxen knot]

well ya this is just an example

[odd ember]

if this is systemic you don't want it to be done in level BP

[twilit heath]

also, physix is not deterministic, meaning that with exact same starting scenario and in exact same conditions, it will produce different results

[odd ember]

chances are when the enemy AI is close you can overlap its collision with the player

and get the player reference like that

[waxen knot]

its not all done in one blueprint as I said the set viewtarget with blend does not work in my enemy PB

[twilit heath]

you really don't want anything that is not specific level specific done in level BP, really

[odd ember]

you can't do it all in one BP

[waxen knot]

thats what I said

[odd ember]

ah my bad

I misread

[waxen knot]

its ok

[odd ember]

right so

like I said

the enemy AI BP

make a collision box

or sphere, really

then do your logic when that collision overlaps the player character

[waxen knot]

the event I want to call is not in the character BP its in the level BP I want to call the event from level PB from the enemy

I already have colisions set up

[odd ember]

you can't and shouldn't use the level BP for this

it's a systemic event

it has to be true for all enemy AIs

not just the one you're using

[twilit heath]

the BeginOverlap event, when it runs in your AI BP, it will have a pin OtherActor

from the AI BP perspective, Self is the AI, and OtherActor is the character it overlapped

in case that OtherActor is the PlayerCharacter, you have a usable reference to both the AI and the PlayerCharacter in one place

so you can do what you need to

[waxen knot]

im sorry I guess I dont understand

im kinda dumb

[twilit heath]

well

select your collision component in AI BP on the component panel

then scroll all the way down in the details panel

[waxen knot]

I have the collision events set up

[twilit heath]

where you have green + for its delegates

[odd ember]

where?

[twilit heath]

and hit the one for ComponentBeginOverlap

[waxen knot]

I am using AI move to on succsess then it triggers all the things

I am trying to get the viewport to switch from one camera to another

[odd ember]

which blueprint

[waxen knot]

enemy

[odd ember]

show your code

[twilit heath]

so

from that AsTPC node in the Cast

pull a wire and promote to variable

and call it "Target"

[waxen knot]

k

[twilit heath]

then you can use the GetTarget to reference the player character later on

[waxen knot]

ok

now what

[odd ember]

add a sphere collision to your AI

make the radius the range where you want the AI to interact with the player

[waxen knot]

ok

oh I got ut

it

[odd ember]

once you have that, you can use the OnComponentBeginOverlap event from that collision

[waxen knot]

no I got it working

I was messing around and I got it

[odd ember]

cool

[waxen knot]

I feel dumb all I had to do was this

well thanks

[odd ember]

in which blueprint is that?

[waxen knot]

enemy

it works

[odd ember]

cool as long as it's not in the level BP

[waxen knot]

ya

I dont see that working anyways

[onyx token]

does it make sense to put tasks underneath a selector?

or should there be sequences?

since a sequence can be true using a decorator

and idk if a task can be true

[main halo]

Hey guys. Quick question. This is not my thing but I am looking for it, but I dont have the correct word for it, then I am not finding it. so... what I want to do:

I want to spawn or activated a particle/niagara from my my character like water... and this water must hit the floor and stop and make a puddle. I think I need to make a trace to know the distance and then I will set the size of this particle to know the ground and then I spawn another one at the floor. But this is the way, this is it or there is a automatic way lets say on particle/niagara where it recognise the floor and do other stuff etc?

[foggy escarp]

There's a blueprint node called line trace.

[main halo]

yeah I have mention to do it. But not sure if there is another way. I am not the designer guy, but want to try something.

[odd ember]

why wouldn't it?

[odd ember]

I think you're better off handling this inside of the particle system itself instead of trying to make a BP responsible for it. #visual-fx

or #niagara

[main halo]

thank you mate. Will try there

[grand sky]

Hello friends, I want to ask a question about performance. When using the actor components I created in other places, would it make more sense to use everything through events or call the function directly inside?

[odd ember]

it makes no difference

the content of the function or event matters

[grand sky]

Thank you @odd ember , I was skeptical about the cost of doing everything via event

[odd ember]

behind the scenes it's all the same. if you're that worried about performance, switch to #cpp

[grand sky]

I don't know much about cpp 😦
I think it is more effective in learning because there are many more tutorials on blueprint on the internet

May I ask one more thing, how much do "cast to" operations cost me? Sometimes I do much more stupid things to avoid it

But I think I can solve this with cpp too 🙂

[odd ember]

the costs are negligible unless you do 100s of them per tick

generally worrying about performance is the last thing you want to do

worry about architecture and making your code work first, then worry about making it readable enough so you can tell what it says in 3 months, then, if it doesn't perform, run profilers and optimize where relevant

[grand sky]

Yes, I broke my running game that I've been developing for 3 months the other day, because I'm trying to make major changes because of the thought that there will be problems with performance. Thank you for everything, your comments are important to me

[odd ember]

I don't know what you mean by "broken"

[grand sky]

I made big changes to avoid "cast to" on items and it was affecting all components, while making these changes, I compile everything carelessly and encountered problems that I couldn't find the reason for. Now I'm starting everything from scratch

[odd ember]

unless you're using 100s of casts per tick it makes no difference. and you need to cast in OOP, it is not avoidable if you're using things correctly

[grand sky]

Thanks again for this information 🙂 Now I can develop more comfortably without limiting myself too much

[keen shard]

it's easier to optimize where needed than to optimize where predicted.

and you likely wont be able to predict where you'll need performance

[odd ember]

"premature optimization is the root of all evil"

[buoyant blaze]

Hi i'm still pretty new to unreal engine, I've looked into multiple tutorial videos but I can't find myself able to understand the blueprints. I feel like i'm copy and pasting connection instead of learning. Is there an efficient way to learn blueprint functions?\

[odd ember]

blueprints aren't much different to regular programming

[buoyant blaze]

Also sorry if i'm in the wrong chat to ask this

[odd ember]

there's many ways to go about learning programming. I don't know what your general experience is. I'd say that trying to understand what object oriented programming is, and the principles that it follows is probably among the first things I'd focus on if you're aiming to do this long term.

barring that, if you're looking at just doing it at a basic level, it's just about finding the right nodes for what you want to do

[buoyant blaze]

Thank you for the advice, lets just imagine i'm learning from the absolute beginning lol, where would I start?

[odd ember]

I believe there are some links pinned to the top of this channel

something that's worth noting is that programming takes an extremely pragmatic approach. if you're wondering about how to do something, the solution is probably as simple as you can think of

there is no magic

[foggy escarp]

My experience has been to simply just spend a lot of time with it. Trial and error has been my best tool under Google. But once you know the technical side of it, the rest is a sort of art which I really have enjoyed in my short year of experience.

Honestly I would hate to have to go to school for something like this. Figuring it out on my own helps me keep my motivation.

[odd ember]

I'd really caution against thinking of it as art

there are ways that you can do it that are very wrong and will cause you issues sooner and later

[foggy escarp]

Which is why allowing the more experienced people to pass their own methods and concerns to me.
A lot of reading documentation and understanding why something has to be the way it is.
It's like what you said, usually the more simple it is the better. Doing something in a way that prevents work in the future is going to pay back time and time again.

[odd ember]

I think less of it being passing down "methods"

there aren't any signature moves

it's just about what works and what doesn't

[foggy escarp]

I agree

[odd ember]

again, there is no magic

[buoyant blaze]

thank you both for your views and opinions I think and hope I may have a good enough starting point now

[odd ember]

the code is instruction. the game will do exactly what you tell it to do, nothing more, nothing less.

emphasis on exactly

it's very easy to assume something to be implicit

nothing is implicit in code

[foggy escarp]

I personally have really enjoyed the reusability and data structures part....
It's incredibly satisfying to Finnish a system and be able to use it for a lot more.

[odd ember]

well yeah, that's the end goal. keeping tech debt low, keeping entropy at bay

[hexed inlet]

I have just realised that if you resize comment fonts in a Material, close it and open it again, it resets all those font sizes back to default

[shadow field]

i need some help, i have a main menu widget and a main menu level, when i open the main level the widget opens and works, (which is what i want) but the problem is i can't figure out where it creates the widget in all of my blueprints? like if i wanted to change the main menu widget i can't because there is no create widget in my beginplay section on my main level BP. im so confused as to how it even displays the widget when there is no create widget function 🤣

[faint pasture]

The main menu level might spec a different GameMode which can spec different pawns or PlayerControllers

@shadow field Just check what's referencing that widget and you'll find where it's created

[shadow field]

im trying to figure out how to reference it, can't seem to find out how

nvm found it thanks

didn't even realize i used a different player character to create it 🤦‍♂️

[quartz mural]

Can anyone help me? I'm trying to do a line trace in front of the actor, I will repeat this for the other 3 facings, and I want to use the rotator to fire a line in that direction, but the line trace uses a vector end point.

[faint pasture]

It's probably that the level specifies a different GameMode which specifies the different PlayerController

[shadow field]

this is what i did for mine, are you using it for shooting? not sure if this even helps though

[shadow field]

thanks it would have taken me hours haha

[quartz mural]

I'm using mine to figure out which floors should have walls, based on whether or not they have any open sides.

[shadow field]

ah ok so it doesnt help sorry i leave this to someone else 😅

[quartz mural]

I guess the better way to phrase this is, "How can calculate a point 200 units out from the start point, using only the transform and origin?"

[gentle urchin]

Get actor loc + get actor forward * 200

[quartz mural]

The transform returns 0,0,0, the rotator returns 1,0,0. I want the end point to be 200,0,0

and dynamic so I can use it in a for loop.

[gentle urchin]

Actor location + (Whatever normalized direction * 200)

If you wannanuse it in a loop you'll need to work with an array of directions

[quartz mural]

ty, this helps a ton.

Such a massive library of nodes, the hard part is trying to learn ALL of them and making the best use of them.

[gentle urchin]

Yeah its quite overwhelming

[foggy escarp]

I haven't seen many people mention entropy before. What an interesting and specific use of wording for describing the work in tech.
Yes, Indeed we should all strive to gain back our time and prevent the infinite loop of bigger and better things from chacing us into eternity.

[gentle urchin]

^exactly why im not even in alpha atm

"I need to make this better!"
"why?"
"because I figured out how, and i can! "
"Will it make a difference?"
"......Yes......(?)"

That + not enough real progress 😛

[white elbow]

can you help me with this? I'm trying to apply impulse to the object you shoot, but it doesn't seem to work this way

[magic pecan]

Hi!

I have a little problem finding the right value of the character rotation relative to its forward vector.

The task is generally simple:

There is an AI that looks in front of itself and there is a player.
I need to find the value of how much AI should turn to face player in float.

Like if player behind AI it something about: minus 180.
If in the front is 180 (or 0).

The forward vector of the player does not matter.

“Find look at rotation” shows the value between two actors, but does not take into account the ForwardVector of the AI actor.

[gentle urchin]

dot

gives you a float

1 to -1

so you'd want the dot between AIForward and GetUnitDirection(AILocation, PlayerLocation)

1 would be dead on. 0 would be 90 degrees out, -1 would be 180 degrees

[maiden wadi]

Personally I'd just do the find look at rotation. You can get the amount you need to turn by subtracting the AI's current rotation's yaw from the look at rotation's yaw.

[remote belfry]

Has anyone ever run into a situation where a widget blocks other widgets even though it is set to Non-hit testable?

[gentle urchin]

Fair, this would work well :)

[maiden wadi]

Are you using RetainerBoxes anywhere?

[gentle urchin]

Anyone got a suggestion on how one would structure transfering of things from A to B when some is instant (like electricity) vs a regular resource that needs to be transported ?

Like would instant supply/demand stuff also be "items" just with no transporttime, or would it be something else entirely?

[remote belfry]

Nope. The offending BP is just a canvas with an image, and both are set to not hittestable.

[maiden wadi]

Are you using retainer boxes anywhere else?

Literally anywhere else in the tree of widgets on screen at the time.

[remote belfry]

Oh wow, I don't think so, didn't think it was like that. I hadn't looked at any of the other widgets since as soon as the offending widget is collapsed things work as intended. ill look.

[lusty rune]

hi

so

i made multiplayer, but when i shoot only i can see the projectile

the other cant see it

[maiden wadi]

To be fair I believe that in my case my widgets were hit testable. I had an issue where retainer boxes from a completely unrelated parent of a parent userwidget's retainerbox was causing lower ZOrder widgets to get hit tested first.

I'd start with opening the widget reflector to see what is happening with yours.

[gentle urchin]

#multiplayer

[remote belfry]

Oh man I'm an idiot. I was looking in th wrong place. Totally missed a location i had the widget being set to Visible that was overriding the non-hit testable. Thanks for the duck.

[white elbow]

Is there a way to make Get Hit Result Under Cursor by Channel ignore certain objects, like pawn?

[grim peak]

Hi all. I saw this tutorial on how to change player with key binding, but it only demos 2 players. Is it possible to do this technique for lets say 5 players? If so, how do I connect the third player? Do you need to add more flip / flop? I just want to be able to choose / select 1-5 players. Thanks

[lusty rune]

@grim peak maybe try to pull out a flip / flop from the B and then connect them

A to first process then next flip / flop a to 2. process then 2. flip / flop b to 3. process

[grim peak]

Thanks. I need to add another flip flop. Let me try... show you.

[lusty rune]

Hi guys

Is there any problem with this? Because it dont want to work

[maiden wadi]

Which part? The Decreasing or the Remove?

[lusty rune]

I dont know, i am shooting it hundred times and its not removing

[maiden wadi]

Debug prints. Make sure your value is going down on hit, and make sure that your execution is running after the branch.

Also on that note, always try to use stuff like <=0 instead of ==0. If you ever end up adding other damage amounts to your game, and damage application is 2, and it moves that to -1, the player will never get removed.

[lusty rune]

oh

thanks

[gentle urchin]

Switch on int, increment int % 5(NumberOfCharacters)

If you do nested flip flow it will go A B A C A B ...

[maiden wadi]

Level blueprint. 😦

[gentle urchin]

Yepp..

Sorta wish the engine blocked that but oh well ;p

Perhaps i just havnt found a proper usecase for it 🤷‍♂️

[lusty rune]

@maiden wadi thanks for previous help, i need another one

how can i do that show the widget to the killed player

[gritty plover]

Hey, is there a way to disable "Tick Enabled" en masse for every single blueprint in a project?

[gentle urchin]

Yes, in the project settings

[lusty rune]

i tried something but it always showed for me

[gentle urchin]

Enable bluepribt tick or smth

[maiden wadi]

Does this call not kick the player out of the game? If it does, you cannot show a widget for that from blueprint. Requires some C++ overrides.

[lusty rune]

oh

[gentle urchin]

At this point id suggest looking into cedrics multiplayer compendium as a start

[lusty rune]

yes, but it always kicks me out, the killed player wont get kicked out

[maiden wadi]

Cause you're not specifying the player to be removed.

[gritty plover]

I tried that. I disabled this in the project settings, but it hasn't applied to literally any of the blueprints that were already made, and new blueprints are also tick enabled still by default.

[gentle urchin]

Nor doing it via rpc i bet

[gentle urchin]

Oh shiet

Instanced ones, or classes aswell?

[gritty plover]

All of em.

[gentle urchin]

If so you can select them all and bulk edit them in property matrix

[maiden wadi]

Why are you trying to purge BP tick? 😄

[gritty plover]

Just to make things easier for myself in the future.

[maiden wadi]

Are you developing on mobile, or?

[celest steppe]

hey all, is it possible to get the source control revision in blueprint as a string, eg for display in UI?

[gritty plover]

Nope. PC.

[gentle urchin]

Bulk edit

Go to contents folder, add filter under search for actors, select them all , right click -> bulk edit via prop matrix

[gritty plover]

Alright. Thanks, all.

[gentle urchin]

Bp tick is toxic 🤣

Purging seem reasonable

[maiden wadi]

Just sounds painful. Some things should go on tick and are much easier to do from BP as a designer. It can always be moved to C++ later. Smart usage is better than entirely removing.

[grim peak]

Hi Squiz.. That flip flop doesn't work as you mentioned . Is that Increment the right node? How do I add 5% and the number of characters? to which node do I connect it too.

[gentle urchin]

Youd still be able to enable it when needed

[gentle urchin]

I'd just do +1, but that's up to you

% is modulo *

[odd ember]

just like you can use debt as analogy for tech debt, code/software entropy exists: https://en.wikipedia.org/wiki/Software_entropy

no need to be snide for what could quickly be uncovered in a google search

[grim peak]

Sorry I'm new to BP stuff.. just learning as I go. Do you mean this node? If I have the Increment node. Is it complicated to set this up or can you show it (screenshot) . It seemed like an easy way to switch from characters. The flip flop works okay but only for two characters. Not sure what to search for for more info.

[gentle urchin]

See my screenshot 🙂

[grim peak]

Cool Thanks so much.. will try now... didn't noticed it 😉

[grim peak]

I have this up. But how do I connect my 5 BP_players to the switch On int ? I googled but it only showed how to print $ text.

[gentle urchin]

Single player game (I hope)?

[grim peak]

Yes, just want switch and show of the 5 players.. perhaps as the tut with key binding.. so I can switch to nect character. Just simple solution would be great.

[strange urchin]

hey folks

why player state begin play run twice in server

?

[gentle urchin]

Well it could be done anywhere then i suppose (just not in the level blueprint would be my advice)

[strange urchin]

i print on server in begin play

[gentle urchin]

playercontroller might be suitable

So you wanna spawn a new class, possess it, and possibly destroy the old one

[gentle urchin]

Do you want all 5 chars to be visible all the time? Or just the one currently selected?=

[grim peak]

Only one

[strange urchin]

guys get pawn on player state begin play failed what should i do ?

[gentle urchin]

Give me a sec

[grim peak]

Take your time.

[grand sky]

Can u give more detail

[gentle urchin]

Alright so leets use the player controller for this

in your custom playercontroller ( if you dont have one, make one)

we wanna take the inputaction and execute a function

we got two variables that we need, one for our index, and one for array of avaliable characters

[strange urchin]

when a player join server make a controller and player state for him

and then

pawn created and possess to controller

so when i want give my pawn

on player state begin play

it faield

but have any event to call when pawn set in player state?

[gentle urchin]

#multiplayer

[strange urchin]

😐

me?

[grand sky]

You can try this: Get Player Pawn > Get Player State > Cast. You can also add a delay and connect it to the event so it tries again

[strange urchin]

delay is not true way

cause we don't know how many time excatly need

[strange urchin]

and this Get Player Pawn > Get Player State > Cast
should be in controller
i want do it on player state

[odd ember]

probably, yes

[grim peak]

I'm not sure if the vars are set correctly Characters is a integer and CurrentCharacter is set to Var name. How do you get that Swap character node?

[gentle urchin]

Make a function called Swap Characters

the Characters array is a soft reference class array

So all our characters are children of a singular parent class

you can probably make it a character soft class ref

then in the array, you add the different characters you want

The swap character functions is then executed like this

First we add to our integer , rounded by number of avaliable characters (so it'll loop around to 0 if we exceed the number of characters we can select from)

Then we load the asset and cast to a basic character class(the pre-mentioned parent class of all our playable characters)

Then disabling collision on the existing character, and setting its lifespan to 0.01s, effectively destroying it ~the next frame

Having disabled collision, we can now spawn our new character.

All that's left is to possess it 🙂

@grim peak

[grim peak]

Hi.. Still busy working on it 😉 In the character array. I currently only have one of my character... So add one + sign... But its only showing one 😦 How do add the others?

[neat stream]

Hey guys, some question for you to pick your brain.. I'm working on some "open world" with object state persistency... It's already done on a basic implementation with a central array / map of what was looted...

As I maybe want to "interate"( find item / contains item / find in map) on smaller data samples I was thinking on creating "Point of interest/ zones" where I had templates.... let say : FuelStation 1 / CarsTornwithGas1 / FuelStation2 ... So I made an AreaManager class then proceed with just grouping actors and creating an actor inheriting from AreaManager...

Until know It's mostly working... still have problem with persistant unique ids for child actors.... (my system was that each actors generated is own UIDs) but with this system it's either each session they have different IDs or every similar POI has the same UIDs... ... My head is not very clear on this I'm looking for something a bit elegant... 🙂

maybe it should replace child actors by spawners

[odd ember]

you absolutely should

child actor components are not recommended

[neat stream]

but then it's getting "difficult" for pleasant level design you see what I mean?

[odd ember]

I don't, no

[neat stream]

mmh/ Or I make elegant spawner with the mesh only loaded on editor and async loaded otherwise at runtime

[gentle urchin]

Theres a + next to the arrays default values which you can use to add anothet entry

[grim peak]

My first character_ is showing up in the list. How do add second as you said with + sign, but BP_of my character isn't in the list. Where do you define this? all the other code is setup nearly.

[neat stream]

how can we differentiate runtime construct from editor construct?

[faint pasture]

Is there another easy way besides child actor component to place an actor in level with other attached actors? I'm spawning the attached actors at runtime but it'd be cool to be able to see the full vehicle instead of just the bare chassis, for example, for modular vehicles etc.

[neat stream]

Working on the same stuff @faint pasture 😉

[odd ember]

there isn't, unfortunately. spawning actors attached is the closest you get. at #cpp level you can subclass components to do this at a more atomic level

for instance I've subclassed collision components to contain logic for themselves rather than having them have their logic in their owning actor

but it's not a 1:1 replacement

sometimes you need full actors

and there is no replacement for that

[neat stream]

did the same for all my collision box... it became "Smart Collision Boxes"

what appens if you have an "editor only" actor inside an other actor ?

when packaged

[odd ember]

what do you mean "editor only"?

how do you constrain it to be "editor only"?

[odd ember]

I don't know UE5 stuff, I would imagine anything editor only does not get cooked into a build

[neat stream]

it's in UE4 also 😉

[odd ember]

well the statement still stands

[neat stream]

yes It would certainly just be a null pointer