multiplayer

[ruby lodge]

the first one is successful now always

I think the server needs to show rip2 once because when it gets it from the client it isn't local for the server

[grand kestrel]

Dunno how many of you are using PredictedMovement plugin, but if you are make sure to check the changelog, there have been a few bug fixes that might be worth pulling

[ruby lodge]

now the actual problem i was having is this:

It is showing accessed none in event tick although in receive restart it worked perfectly fine and displayed the names

I have checked this now and it still displays the name although it gives the error

[fossil spoke]

@ruby lodge You would cache that variable on BeginPlay as it comes from a Component that is directly owned by the Pawn

[ruby lodge]

you mean on receive repeat?

[fossil spoke]

Huh? Where in that sentence did I say anything about "receive repeat"?

[ruby lodge]

i don't have a begin play

[fossil spoke]

Then add it.

[ruby lodge]

you literally just told me 5 min ago to delete it

and put a receive repeat instead

here?

[fossil spoke]

That needs to go in BeginPlay

[ruby lodge]

do you mean to have receive repeat and beginPlay and to put this into beginPlay?

[fossil spoke]

Put JUST the red circled nodes in BeginPlay!

[ruby lodge]

or switch the receive repeat for a beginPlay again

[fossil spoke]

Read what I am saying to you

[ruby lodge]

you are saying multiple things that are contradicting

first i had a beginPlay

then you told me to delete it and put a receive repeat instead

now you tell me to add it again

[fossil spoke]

🤦‍♂️

[ruby lodge]

and i am just asking if i should replace the receive repeat with it or have both

[fossil spoke]

No

That was a separate issue

You have a new issue now

Stop combining them

They are different issues

I am giving you the solution to your new issue

[ruby lodge]

what do you mean stop combining them. It's still the same node tree, if this destroys the solution for the first problem then i wouldn't have gained anything

so

add beginplay and put the nodes in them

keep the receive repeat as it is

besides these nodes

gotcha

okay now it's working

I will show you the final node tree so that you could re-check if you want

[ruby lodge]

Thank you!!

[latent basin]

Hey all i have a simple lean system, the custom event svr lean runs on server and sets lean value. Right now it is working perfectly and when simulating laggy network it still works well.

I was just wondering when i remove setting lean again in the blue highlighted box, when playing with simulated lag it has a big delay to start leaning, why is this and why do we set the lean variable once again affter calling svr lean

Why does it make it run better in laggy simulation

[sinful tree]

Because you're setting it locally on the client which will happen before the server receives the instruction and replicates the replicated variable back.

It's a matter of:
Press Button > Sending to Server > Changing the value locally > Visually appears instantly on the client activating it > Server eventually replicates value > Activating Client is already visually seeing it as it should be
vs.
Press Button > Sending to Server > Server eventually replicates value > Visually appears delayed on the activating client

[dark parcel]

it's called client prediction. You apply something locally instead sending data to server and wait for server to send the data back to you.
If sending data takes 20 ms to reach the server, it will take another 20 ms to reach you and other client. So it takes 40 ms just to set the lean value should prediction doesn't exist. this is why you should always emulate lag when developing multiplayer game because the lag free world doesn't exist

[frozen moat]

is there a context outside of the character bp where i can receive input events?
context:
i want to swap pawns but i don't want to write the code in each of the pawns if possible

it would be helpful if i can get the input event directly in the game mode bp

[kind ermine]

LogNet: Error: UEngine::BroadcastNetworkFailure: FailureType = PendingConnectionFailure, ErrorString = Your connection to the host has been lost., Driver = PendingNetDriver IpNetDriver_0

im getting this while trying to join session..voice chat is working though

but not able to load the map

[frozen moat]

ok i wrote the functionality anyway so i can move it if needed but i want to know where do i do the swapping of the pawns

the pawns will mix and match depending on the level

so each level blueprint will have an array of the pawn characters to cycle for each player

[thin stratus]

@frozen moat PlayerController

[frozen moat]

is that a bp i can access?

[thin stratus]

Well you should really know what the PlayerController is if you do Multiplayer

[frozen moat]

i am reading about it

https://docs.unrealengine.com/4.27/en-US/InteractiveExperiences/Networking/Actors/OwningConnections/#:~:text=Each PlayerController that is created,connection that owns the PlayerController.

[thin stratus]

If you don't, then please read the first pinned Message in this channel

[frozen moat]

cause apparently i don't own the game mode and i can't run server events in there

[thin stratus]

That's correct. The GameMode doesn't even exist on Clients

Please read the pinned compendium

[frozen moat]

oldest or latest?

[thin stratus]

The top most one. The compendium

All of this is basic and fundamental information

In terms of multiplayer.

The compendium exists to not have to repeat this every day :D

[frozen moat]

ok a question apart from this is how do i get the level blueprint reference so that i can call functions in it or get the arrays from it in the bp character

[hoary spear]

Yet here we are 😄

[thin stratus]

You usually don't

There is no BP getter for it

[frozen moat]

hmm

[hoary spear]

You generally dont want ro rely on levelbp

[thin stratus]

C++ there would be, but almost always the LevelBlueprint might be the wrong choice. It has its usages but if you need to access it there is a high chance you are using it for the wrong reasons.

[frozen moat]

the functionality is level specific though so i think there's no better place other than level bp

[thin stratus]

That's fair. But without c++ you might not be able to get the reference

You can bind inside of it to other actors Delegates/EventDispatchers but that's about it

[frozen moat]

i guess i will avoid the level bp cause it's just what characters i want player 1 and player 2 to own for different levels(i'll just have a table or something)

[thin stratus]

If you are locked to BP only you might have an easier time simply dropping an empty data actor into your scene. And then once at the start of the game either get it with GetActorOfClass or use its own BeginPlay to get any of the statically accessible actors and "register" it there (by setting some reference variable with it)

Somewhat similar to how SpawnPoints work (in terms of the idea behind them)

[hoary spear]

Extended gamemode

[frozen moat]

is using GetActorOfClass fine?

[hoary spear]

Sounds reasonable to me

For different pawns per player per level

[thin stratus]

It's fine if it's the only way to achieve something

To avoid it you can do the BeginPlay version

But you might have a case where BeginPlay is too late

[hoary spear]

Or too soon

[coarse patrol]

https://wizardcell.com/unreal/spectating-system/#1-clients-cant-spectate

hi i followed this tutorial to create spectate player
spectating works in server but client not able to spectate any idea how to solve

[frozen moat]

i think i'm having the same problem right now

😛

well a similar problem

[frozen moat]

there's a "finally i can spectate?" subsection might wanna read through that

[coarse patrol]

yeah i read it
and tried the cant spectate bug fix
still no luck

[queen escarp]

Hi eXi- you got some time to contineu helping me with the player display thingi:) ?

[frozen moat]

just a simple question
should i unpossess the pawn when possessing the next? and if so, can i do it inside the character bp itself which is going to get unpossessed?

just realised i can't even get context to the possess node in character bp

ok i figured out the missing link.
the default player controller that unreal provides in third person template is a cpp header file. i realized i can create a custom player controller blueprint file.

[glacial wasp]

How to port multiplayer code to singleplayer? E,g, I have a code:

    UFUNCTION(Client, Reliable, WithValidation)
    void ShowDamageNumber(float DamageAmount, AGDCharacterBase* TargetCharacter);
    void ShowDamageNumber_Implementation(float DamageAmount, AGDCharacterBase* TargetCharacter);
    bool ShowDamageNumber_Validate(float DamageAmount, AGDCharacterBase* TargetCharacter);

Should I replace it with

    UFUNCTION()
    void ShowDamageNumber(float DamageAmount, AGDCharacterBase* TargetCharacter);

in case Im not planning to make a multiplayer game? Or does it have to deal with local 'server' when playing singeplayer?

[frozen moat]

omg it finally works

😛

[coarse patrol]

specatating?

[frozen moat]

no i'm cycling characters based on players

[coarse patrol]

oh ok

[queen escarp]

@dark edge hey i think eXi- bussy maybe you could help me finnish it 🙂 ?

[glacial wasp]

Anybody? Please

[coarse patrol]

i think just remove the implementation and validate function
And move the implementation logic to ur Showdamagenumber func

[glacial wasp]

Is that because in singleplayer server and client have a shared memory so we access the data directly?

[coarse patrol]

in single player local instance of the game will be running on your machine, so u can directly access data, no need to replicate

You don't need the implementation and validation functions in a singleplayer game because you're not dealing with client-server communication or remote procedure calls.

i am just noob, better if someone else replies
with better knowledge

[coarse patrol]

anyone has idea about multiplayer spectating?

[kind ermine]

does anyone know how to solve it..for engine version 5.2 i remeber getting it to work with 5.0

[coarse patrol]

i had similar issue

are u using eos? @kind ermine

[kind ermine]

yes

im using that

[coarse patrol]

then issue is definetly port forwarding

[kind ermine]

any idea how to solve tha

that

[coarse patrol]

in default engine.ini
change this

[/Script/SocketSubsystemEOS.NetDriverEOS]
bIsUsingP2PSockets=true

to

[/Script/SocketSubsystemEOS.NetDriverEOSBase]
bIsUsingP2PSockets=true

[kind ermine]

did

same

[coarse patrol]

this fixed for me

[kind ermine]

shall i share my default engine file

?

[coarse patrol]

yes

[kind ermine]

check dm

[fallen orbit]

One simple question: If I want to create session as online mode, do I have to use steam online service or EOS or other such service?

[coarse patrol]

u can use them or create ur own, using onlinesubsystemnull for customized backend service

[fallen orbit]

My game now can only create LAN mode session. Once I created session as Online mode, logs output "TickWorldTravel failed to Handle server travel to URL:"

[fallen orbit]

OK, then I guess something goes wrong in my game.

[coarse patrol]

guys anyone have idea why my client spawns spectator class and even if character is possed i am not able to control character, but spectator class controls are working

[whole solar]

Hi. No need any changes, single game will work just like server. But usually the declarations _Implementation and _Validate are not written; they are already in the engine.

[glacial wasp]

Wdym

Unreal build tool generates them?

[fallen orbit]

What if some functions are written in ReplicatedUsing?

[glacial wasp]

But is there any difference between those 2 ways in singleplayer?

[fallen orbit]

Another question is that in listen server, the host's GetNetMode() is just listen_server, so how to distinguish between client's if_locality on listen_server and host's if_locality on itself (if I want to add some UI only in client)?

[whole solar]

Above I meant the listen-server. If the server was made as a listen-server, then the ReplicatedUsing functions can be removed. They are executed only on the client.
If the server is dedicated, then a lot will need to be redone.

[whole solar]

What ways? In single game you can remove "Client, Reliable, WithValidation" from UFUNCTION, or not, it will work.

[whole solar]

What is if_locality? If you need local player, you can use "Is Local Controller"

[fallen orbit]

yes, you are right.

[glacial wasp]

I mean lets say I'm not planning to add multiplayer for now, So I leave only UFUNCTION() void ShowDamageNumber(float DamageAmount, AGDCharacterBase* TargetCharacter); because its easier to write, read and support. But lets say eventually I decide to make a multiplayer game and take these classes for using in it. So I just move the logic into the _Implementation method, other is just a transport boilerplate. Will it work? Are these 2 ways of writing logic interchangable? Or does every single UE human being using multiplayer-friendly way of writing code right from the start? So they add replication, validation support even into the singleplayer games just because unreal engine can do it? Or is it bad to write UFUNCTION() void ShowDamageNumber(float DamageAmount, AGDCharacterBase* TargetCharacter); instead of a proper client-server method because it doesn't something or breaks in some cases or isnt memory-safe?

Maybe these questions sound strange but I came from another enterprise engine with different architecture and ways of implementing stuff so I just wanna understand how is UE actually meant to be used. For now I can't get neither why including replication code in singleplayer game if its supposed to be running locally, neither why removing replication code from singleplayer game if its supposed to be written this way

[whole solar]

Listen server is not a server and client, it is only one programm with client interface

[whole solar]

It need be determined whether the game will be single-player or multiplayer. There are many nuances in a multiplayer game. Converting a single-player game into a multiplayer game is fraught with errors. But if you only have a single player game, there is no need for multiplayer code. If you're making a multiplayer game, it's better to do support at the very beginning.

The multiplayer code is memory safe, as far as I know. It will not break if you understand when which RPC is executed.

[glacial wasp]

Thats why Im asking about these very nuances, I havent found an article in the official docs which would say 'do this for SP, do this for MP'. Official doc doesnt make a difference at all

[whole solar]

Each game is individual, and the nuances depend on its content.

[glacial wasp]

On what content does using

    UFUNCTION(Client, Reliable, WithValidation)
    void ShowDamageNumber(float DamageAmount, AGDCharacterBase* TargetCharacter);
    void ShowDamageNumber_Implementation(float DamageAmount, AGDCharacterBase* TargetCharacter);
    bool ShowDamageNumber_Validate(float DamageAmount, AGDCharacterBase* TargetCharacter);

instead of

    UFUNCTION()
    void ShowDamageNumber(float DamageAmount, AGDCharacterBase* TargetCharacter);

depends?

Its like general UE API, nothing game-specific

Just as everything else Ive asked so far

[whole solar]

The first should be used if you are planning a multiplayer game. Second - if only singleplayer game.

[glacial wasp]

But there you said we could use 1st option for singleplayer, so both are valid - whats the best practice then?

[whole solar]

No multiplayer code is required for singleplayer game. Writing it is a waste of time. But if you already have it, you can just leave it as is.

If this is a listen-server.

[glacial wasp]

Thanks now it makes sense

[quick torrent]

Hi guys do we need steam app id to test multiplayer sessions?
Context:
Locally, two machines with wo different steam accounts work.
Over the network, (the region is the same) I can't seem to find sessions.

[whole solar]

Hi. You can just use id 480. But you need two different Steam accounts to test multiplayer.

[quick torrent]

Thank you. I think the problem is somewhere in my code then 😅

[whole solar]

Most likely. Last time I checked it was working for me.

[pastel fiber]

How to make the DrawDebug* gets rendered on not only servers but also clients?

[karmic briar]

hello, so im not very knowledgable in this topic so please corret me if im wrong.

So im in the process of making my ai and my game designed to have tons of AI's.. for player controlled pawn, if you want a replicated custom movement, you have to use character movement component but i remember i read that is not the case for AI.. do i have to built AI equivalent of CMC from the ground up? I dont mind trying to attempt to build one. i know it will take months and i have to see of CMC do it..

I dont want to go this route but if i have to, anyone have attempt to do this? if so, can you advice me on things i need to do / donts? any pointers?

any technology built in unreal you can suggest me look into?

[twilit radish]

You can use the character system just fine with AI, it's not built 'just' for real players 😛

[karmic briar]

i thought having ai replicated to players will be expensive too? lets say if a coop mode?

for example having ai like >10

i remember seeing someone tgalking cmc is expensive even for large amount of ai

[whole solar]

This is a local thing. Use the Сlient/Multicast RPC in which call DrawDebug.

[latent basin]

Ahhhh that makes alot of sense

Thanks alot for the clear explanation

[latent basin]

Thanks alot that makes sense, and yeah i figured the same so i tried simulating a bad connection and am just sorting out things that are slow

[quasi tide]

10 AI is not much AI at all.

[karmic briar]

not technically aim for 10 but for like more than that.. just an example

[quasi tide]

Don't give an example. What is your target?

Because the difference between 10 and 100 and 1000 is massive

And each would warrant a different response.

[karmic briar]

lets say more than 100

if that the target

🤔

[quasi tide]

Yes, you will want to optimize things. Because you also asked this kind of question in #gameplay-ai, there are answers in there more relevant.

Which is exactly why crossposting is against the server rules.

[karmic briar]

i just thought since both channel technically relevant to the question, it would be appropriate to crossposting in this case

sorry

[velvet jacinth]

Really weird bug.
When the client left the session, the material on the server turn black. Like the material just went off.
What's happening?
I'm using Runtime Virutal Texture by the way

[dark edge]

Need way more info to tell

[fallen orbit]

Having a serious problem here:https://forums.unrealengine.com/t/commonsessionsubsystem-in-commonuser-plugin/1331509. Anyone can help me?

[viscid tapir]

Hello I got a question about bandwith. I'm adding passively 1 gold coin per 0.5s. Everything is working perfectly as intended but... is it okay to do so ? I have another alternative where I never add passively golds but evaluate the gold coins amount based on server world time and client-side; i set a timer that fakes incrementation of the gold coins. What do you advice me to do ?

[dark edge]

That's literally nothing

unless you intend to play the game through https://en.wikipedia.org/wiki/IP_over_Avian_Carriers then don't worry about it.

[viscid tapir]

the second method is overkill ? (to save bandwidth) ?

[dark edge]

the bandwidth of changing a number every half second is approximately zero

don't worry about it

[viscid tapir]

Ok thank you !

[dark edge]

1 moving character is like 200x the bandwidth of that

[viscid tapir]

Omg I see

Just by the way : I'm updating the value server-side (no bandwidth consummed) and server replicates the changes that calls OnRep to broadcast the client delegate which updates every 0.5s (I set it in a timer) the gold coins amount

its still nothing with more context ?

[dark edge]

pretty much zero

thats like what, 8 bytes per second?

[viscid tapir]

I think

Well, thank you

[dark edge]

basically zero

[velvet jacinth]

Well, I have a landscape with a material that using Runtime Virtual Texture.
Honstly that's it. The client leaves the session of the server and the material turn black.
I did had some bugs with UE that sometimes it turns black when you paint maybe it's an engine bug.
That's make no sense that the client leaving would cause the landscape material such a thing.
There's no camera movement or anything also.
It's only happens when I'm using the RVT, while it's off everything works fine.

[frail temple]

So I've started to come across issues where only certain things work with PIE and other things work with SA, is there any work around for this or just stick to SA as that will be the closest thing for a release multiplayer game? E.g. Gamemode - PostLogin will fire in PIE and not SA but OnSwapPlayerControllers will activate in SA and not PIE

[cedar creek]

Hi i am having a problem with my code is there anyone can help me?

i am looking for a solition for hours and couldn't find anything i would be too help if you could help

[quasi tide]

Just ask your question. Don't ask to ask.

[frail temple]

Shoot your issue in here and someone will help if they're able to

[cedar creek]

This is in my grave BP

When i delete should destroy grave and branch it works fine

when i add that it doesnt work at all

This is in Character MP

[keen hound]

How would I display a player count from a dedicated server?

[twilit radish]

The gamestate has a variable named PlayerArray which has a reference to all player states in the game, if you grab the count from it you have your number 🙂
Works on both the client and server too.

[keen hound]

I'm assuming there's no way to do this from blueprints?

[twilit radish]

It's also exposed to blueprints.

Should work just fine.

[ruby lodge]

how do you replicate metasounds?
i have added an audio component to the bp mesh but only the server can hear his metasounds. He can't hear the rest but the rest can't even hear themselve

[lusty sky]

multi cast rpc maybe

[waxen breach]

Working on a little prototype game i've been thinking of, but I cannot figure out the flying mechanic and how to replicate it

https://blueprintue.com/blueprint/s51my7d7/

Here's the entire code for the seagull character, it's a bit messy, mostly because i've torn it apart trying to figure out what i'm doing wrong here

Any help or advice would be greatly appreciated

(also the recording cuts out a lot, filming on an old quest 2 so if it does that i can't really stop it0

Little update, making the flying events multicast actually helps it, but now it just skips upward and isn't smooth

[stuck cloud]

Anyone knows what to do when you get a stuck 2nd mouse cursor?

[stuck cloud]

I only have the problem when set the input mode to "game only" after editing the text input

But I'd like to keep it like that, since otherwise I always have to click once after setting the text with enter in order to get keyboard inputs again

[feral wing]

Hi guys, In terms of setting the dedicated server... I have an Issue and I'm not sure what I'm doing wrong.
I set forward PORT into my local router setting to 55000 for example, into dedicated server properties (right click) I put -log -port=55000, into my firewall I also set up inbounds outbounds to that tcp port 55000 and is not connecting from other laptop with the build to the laptop which is running the server. I have an entry map which got on begin play a open level node with my public ip following :55000

[grizzled garnet]

quick help, add movement input called on the client isn't replicating to the server and the client isn't moving, but server to client movement is fine. Do I have to instead call add movement input via RPC?

[sinful tree]

you need UDP, not just TCP

You also can't really connect to your own external IP address when internal to it - your other laptop would need to be on an external network to connect to your external IP address.

[dark edge]

Why the hell are you multicasting the destruction of an actor?

It should be a replicated actor

just destroy it serverside

[grizzled garnet]

funny thing, I did not see that but in fact that is one of the very problems I am trying to figure out, why actors aren't being destroyed client side

[feral wing]

Yes I used mobile hotspot for the other laptop

Do I need to made some changes into some .ini files?

[twin juniper]

Hi guys, whats the correct place to modify the velocity in a CMC? I ask this because I am trying to implement a slide mechanic and while it 'works' can see some desync time to time.

[celest copper]

Quick question: What is the path supposed to point to when using websockets? Is that to a folder on my system or...?

[prime pawn]

So im trying to spawn a npc on client, So if the host calls this function. it spawns npc. & client sees npc, host sees npc, & everthing functions correct, but if client side calls this function, nothing spawns. Any tips?

[sinful tree]

Are you trying to do this with a "Run On Client" event on this BP AI actor?

[prime pawn]

executing on server only

[sinful tree]

But it is on this BP AI actor blueprint?

[prime pawn]

yeah

[sinful tree]

And is this BP AI actor owned by a client?

[prime pawn]

i dont think so, how would i configure that?

Essentially what im trying to do, is In BP_AI when dead, spawns a new npc class (BP_AIhumanranged), but in multiplayer

works fine on server (host) even works fine if the clients come around the npc will still interact with client

[sinful tree]

You don't necessarily want it to be owned by a client as you shouldn't need to change ownership just to call an RPC. Ownership of an actor is usually automatically handled when you possess it if it is a pawn (usually the "character" the player is playing as) or when you're spawning the actor. If it's something that can be accessible by multiple clients then you don't want to set the owner.
The "Run On Server" and "Run On Owning Client" events will only trigger correctly on clients if the actor they are being called on is owned by a client, therefore, you need to send the Run On Server event on an actor that is owned by the client.

In this case, since you're wanting to handle when the AI is dead, it shouldn't involve the client at all. The server should know when the AI is dying already as damage/death should be getting handled by the server, and the server should be able to determine what/when to spawn the next actor.

If you don't, then you're just opening up an RPC that will allow a client to spawn actors all they want.

[prime pawn]

alright thanks for the info

how would i make sure the actor is owned by client/

[sinful tree]

You'd call set owner while runnin on the server.

[latent heart]

Because you crossposted.

It's divine punishment.

[prime pawn]

huh

[grave lynx]

Hey, is there a way to change/reset a rep notify variable without notifiyng everyone?

[rustic ridge]

Hi guys, does camera camera transform exist on server?

Cause, when i shot line trace (I use camera world location for start vector and (forward vector * some value + start) for end vector) on server, there is no camera rotation

[grave lynx]

linetrace on client, then send transform on server and do you stuff

[rustic ridge]

yes, i do it like this

but i want to do it on server and when multicast to all clients some action

so i won't trust client

i saw some examples, where people do server only line trace and it worked

[faint parcel]

If I have a UObject that I replicate by passing it to an actor's 'AddReplicatedSubObject' can I then later remove the UObject and add it to another actor if e.g. an inventory item UObject switches inventory?

[inner hearth]

hey, I'm new to this - is it possible to call RPC from Actor class (client side)? or it works only if Player Controller possess this actor?

[chrome bay]

Actor has to be "owned" by the Client, or another actor which is owned by the client in a chain.

Top of the chain is usually the controller

[velvet jacinth]

If anyone here has a good advice for that topic I would be glad to hear.
https://forums.unrealengine.com/t/spawn-player-for-multiplayer-top-down/1332538?u=scoly1

[inner hearth]

I tries do something like this from PC on server side(tried on client side also), but RPC from this Character class not sent to server - am I doing something wrong?

[twin juniper]

Hi guys, I am following some character mechanics tutorials (C++), in particular a sprint, and while it works fine, when I introduce some lag (network emulation) I get some corrections (p.NetShowCorrections 1) from time to time. Is this normal or does it definitely mean an error in the implementation?

[fallen orbit]

Why my GetAuthGameMode() function running in server always return Null? UGameplayStatics::GetGameMode(GetWorld()) is also Null.

[dark edge]

Does the tutorial do anything with a custom CharacterMovementComponent and compressed flags?

[fallen orbit]

Subsystems don't support RPC and replication? I called a RPC function running on server. Guess that's the problem?

[proven kayak]

no subsystems dont replicate by default, since they are just uobjects. it is usually pretty simple to make uobjects replicate but ive never tried with a subsystem

[fallen orbit]

I found it in this article: https://forums.unrealengine.com/t/programming-subsystems-and-replication/506005.

" it is not possible to replicate properties or call RPCs through a subsystem."

[proven kayak]

yeah by default.

try following this: https://jambax.co.uk/replicating-uobjects/

[hollow eagle]

You cannot replicate a subsystem with that.

[proven kayak]

why not? no actor owner?

[hollow eagle]

Correct.

Replication is tied to actor channels. Subsystems are not owned by actors.

Or at least the default type of subsystems aren't.

[proven kayak]

even with using the subobject list on some random actor?

[hollow eagle]

I highly doubt it'll replicate correctly due to not actually being owned by the actor. There are numerous problems with that.

If you want to replicate something via a subsystem you usually have the subsystem spawn an actor on the server and use that as your method of replication.

[proven kayak]

ive used the subobject list for objects not directly owned by the actor before

it does work, sometimes

[hollow eagle]

Yes, but was that actor part of the outer chain?

Direct ownership isn't required, some ownership is.

And I'd imagine that even if it did work somewhat there'd be random things breaking due to assumptions that an object's outer chain eventually leads to the actor it's replicating through.

It also requires the subsystem on both ends to have a stable name (not something easy to guarantee without engine modifications)

And regardless, this still requires you to spawn an actor. So why bother with hacking the engine up when you can just use the actor you need to spawn anyway.

[fallen orbit]

Learned a lot. Thanks. UE programming has so many traps.

[proven kayak]

@hollow eagle it does work. i put together a quick test of a WorldSubsystem that registers itself onto the gamestate. i got a variable to replicate to clients at least

[hollow eagle]

yes, but you can't access it except through that actor

it's not replicated as a subsystem, and you have no clue what else might break

[proven kayak]

what do you mean?

[hollow eagle]

UWorld::GetSubsystem will not give you the "replicated" instance of the subsystem, it will give you a local instance of it.

Which means writing a bunch of extra code to grab the replicated one if it even exists

Not to mention, again, that there are likely assumptions around the engine about the actor being in the outer chain.

[proven kayak]

the widget on the client is using the normal accessor tho

[hollow eagle]

I have no clue what those values are or where they come from

as far as I know you're checking the wrong thing and assuming a value is being set by the server when it's not

[proven kayak]

"Rep Subsystem Test" is the regular node autogenerated by unreal

[hollow eagle]

I'm aware of that

I'm talking about what the replicated variable is and how it was set.

[proven kayak]

set by the game state

replicated in c++

[hollow eagle]

I would assume something wonky is going on here. Subsystems are created before replication even begins so that subsystem on the client should have been created separately from replication. At best maybe the existing object is being replaced by the replicated one or the actor is grabbing the originally created one and overwriting properties, but I'd imagine that also results in a ton of wonkyness where the object existed before the actor did. I'd be afraid of what this might do to anything that isn't a world subsystem too.
There are multiple UDN posts about using separate objects for replication when dealing with subsystems, I would assume that even if what you think is going on here is actually happening that this is dangerous without understanding why it works and what other systems could possibly break as a result.

And once again: there's little to nothing you gain by doing this, you still need a separate actor.

[proven kayak]

as far as I can tell, since the server and client generate the subsystems with the same name, unreal is able to link the two together since I did this:

[hollow eagle]

Yes, that is indeed how that'd happen.

Assuming this isn't some PIE-specific weirdness happening since they're in the same process.

[proven kayak]

good point

lemme try standalone real quick

yep works in standalone. Multicasts ,and OnReps seem to work too.

[hollow eagle]

Oh, this will also break in weird ways because the name isn't stable

subsystem collections don't guarantee anything about the name

if by some chance another world existed first and a full GC hasn't happened your subsystem won't be matched up because it won't have the "default" name

[proven kayak]

makes sense

yeah, its not overriding the name in any way

[hollow eagle]

Actually, that situation might be fine because the worlds would have a different name. Still dangerous because subsystem names aren't guaranteed in any way and if anything else created an object with the same name as what the server's subsystem had then you'll end up breaking something.

Anyway, yeah, not something I'd ever do except out of curiosity.

[proven kayak]

yea i was just curious if i could make it do it

[hollow eagle]

oddly enough USubsystem overrides GetFunctionCallspace which is a network thing. So at some point someone was thinking about replicated subsystems but never actually did anything with it.

[proven kayak]

isnt that also for static functions? BlueprintFunctionLibrary also overrides that doesnt it

[hollow eagle]

Actually, I misunderstood what it's for. It's network related but not because the object is replicated

It's about ignoring blueprint calls to authority-only functions on clients

and ignoring calls to cosmetic functions on dedicated servers

both of which are relevant to non-replicated objects

[fallen orbit]

I spawned actor in subsystem. In the actor the RPC function is```UFUNCTION(Server,Reliable, BlueprintCallable)
void CallOnServerToTravel(const FString& inTravelURL);

void ACSSReplicateActor::CallOnServerToTravel_Implementation(const FString& inTravelURL)
{
UWorld* testWorld = GetWorld();
ENetMode testMode = testWorld->GetNetMode();
AGameModeBase* GameMode = GetWorld()->GetAuthGameMode();
AGameModeBase* testGameMode = UGameplayStatics::GetGameMode(testWorld);
if(testMode){};
if(testGameMode){};

testWorld->ServerTravel(inTravelURL);

}

``` FActorSpawnParameters pram;
 pram.Owner = UGameplayStatics::GetPlayerController(GetWorld(),0);
 ReplicatedActor = GetWorld()->SpawnActor<ACSSReplicateActor>(ACSSReplicateActor::StaticClass(),FVector(),FRotator(),pram);
 ReplicatedActor->CallOnServerToTravel(inPendingTravelURL);
```But why it crashed here(in the gen.cpp file):```void ACSSReplicateActor::CallOnServerToTravel(const FString& inTravelURL)
    {
        CSSReplicateActor_eventCallOnServerToTravel_Parms Parms;
        Parms.inTravelURL=inTravelURL;
        ProcessEvent(FindFunctionChecked(NAME_ACSSReplicateActor_CallOnServerToTravel),&Parms); // Here it crashed.
    }```

Anyone kindly enlighten me? Struggling for a long time.

[torpid girder]

hello, i am trying to connect to my websocket server but i keep getting LogWebSockets: Warning: Lws(Warning): lws_client_handshake: got bad HTTP response '400' in the logs

i am guessing the module has some predefined settings i need to replicate on my server

[dusk orchid]

can you post the error you got?

[fallen orbit]

@dusk orchid Actually Not very much info rider gives me. Is this enough? I looked up in the chat history of this channel, I don't think it's like the error they mentioned, because it's not repeating, it just happened.

[dusk orchid]

 FActorSpawnParameters pram;
 pram.Owner = UGameplayStatics::GetPlayerController(GetWorld(),0);
 ReplicatedActor = GetWorld()->SpawnActor<ACSSReplicateActor>(ACSSReplicateActor::StaticClass(),FVector(),FRotator(),pram);
 ReplicatedActor->CallOnServerToTravel(inPendingTravelURL);

Is this on the server or client?

[fallen orbit]

client

I ran it again. Is this because the actor doesn't exist on server?

[dusk orchid]

yeah im thinking this is the issue I would instead have the server call spawn the actor itself and since its replicated itll spawn it on the clietns

the reason you're getting access violation is the server never spawned that actor

[fallen orbit]

So, Everything about Replication only transfer from server to client?

And I don't know why this time rider gives me actor is None yet the last time it gives me strange information

[dusk orchid]

Replication != rpc

rpc are functions that are called locally but then executed on a remote machine

client -> server
server -> client
server -> clients

replication are properties that are set in the server and are then updated to the clients

[fallen orbit]

But what about the bReplicates in Actor? How are these actors replicated between server and clients

[dusk orchid]

if an actor is bIsReplicated = true then properties that you set as replicated will be updated when they are changed in the server

it will also be spawned on the client

so if i have

AReplicatedActor
UPROPERTY(Replicated)
int32 Health = 100;

if i spawn this on the server it will spawn it on the server and client

if i then in the server say
Health -= 50;

in both the client and server the health variable will become 50

[fallen orbit]

I kinda get it. I used to believe bReplicates would make them same in server and clients, which is the problem I got.

[dusk orchid]

yeah just remember you want the server to be the one in control (usually maybe you don't for things that should only happen in the client)

[fallen orbit]

Thank you very much, my friend.

[torpid girder]

hello, does anyone know why the websocket client might be giving me a Error: WebSocket Connection Error: HS: ws upgrade response not 101 message ? i assume my server needs something configured on it

[dusk orchid]

whats your websocket code look like

[torpid girder]

    TMap<FString, FString> Headers;
    Headers.Add(TEXT("worldkey"), TEXT("secretkeys"));


    Socket = FWebSocketsModule::Get().CreateWebSocket(ServerURL, ServerProtocol, Headers);
    Socket->OnConnected().AddUObject(this, &UAvalonTelemetrySubsystem::WebSocketConnected);
    Socket->OnConnectionError().AddUObject(this, &UAvalonTelemetrySubsystem::WebSocketConnectionError);
    Socket->OnClosed().AddUObject(this, &UAvalonTelemetrySubsystem::WebSocketClosed);
    Socket->OnMessage().AddUObject(this, &UAvalonTelemetrySubsystem::WebSocketMessageReceived);

and then i call connect

there is little code in the methods right now other than to log

void UAvalonTelemetrySubsystem::Connect()
{
    if (Socket)
    {
        Socket->Connect();
    }
}

not exactly anything unusual from what i can tell

i can connect in with postman and send json objects

i can only assume i have configured something i don't need

for values, ws://localhost:8765/ protocolis ws

i checked with the debugger and they values look fine

[dusk orchid]

WebSocket = FWebSocketsModule::Get().CreateWebSocket(CHAT_WSS);

    WebSocket->OnConnected().AddUObject(this, &UXYZChatManager::HandleWebSocketConnected);
    WebSocket->OnConnectionError().AddUObject(this, &UXYZChatManager::HandleWebSocketConnectionError);
    WebSocket->OnClosed().AddUObject(this, &UXYZChatManager::HandleWebSocketClosed);
    WebSocket->OnMessage().AddUObject(this, &UXYZChatManager::HandleWebSocketMessageReceived);

    if (WebSocket.IsValid())
    {
        WebSocket->Connect();
    }

yeah looks very similar to what i have for my chat system, so it must be some config issue

did you try to make your wesocket url
wss://localhost:port
?

also what are you using to set up your websocket server

[latent basin]

Hey all, whats the difference between just multicasting vs multicast the running on server? I have a simple system that applies a material to a mesh and i run it on multicast and it works fine, but for different examples some people first multicast and then run on server, for instance like playing montages. What happens if you run it on server after multicasting?

[hoary spear]

Huh?

Only server can multicast

[latent basin]

really

Thats weird i have a system where i have a skin material stored in my player controller and on beginplay i call a multi cast custom event which set material of actor mesh using the material stored frm player controller

and it works fine

[hoary spear]

Beginplay fires on server aswell

[fair latch]

Where do you get such wrong example

[latent basin]

that makes sense

Thanks

[latent basin]

Not sure but I have seen on multiple tutorials you need to multicast then run a montage on server

[fair latch]

Only server can do multicast rpc

It will get dropped if called by client

So server rpc , then multicast

[queen escarp]

hey guys i need help, anyone got time to assist me with some widgets displaying friends on screen?

[latent heart]

http://www.dontasktoask.com

[queen escarp]

)

sure so, eXi- helped me start the system but we never got to continue and im guessing hes super bussy so ill just send what we got

https://blueprintue.com/blueprint/2h-jont4/

so first thing is that this is suppose to Add/Remove the Widget "player frames" based on players joining / leaving

but obviously its not working

need help im tottaly lost :/

[woven bramble]

I got a Fatal Error in my packaged game, which makes it hard for me to find a workaround since I don't see the same error when I try again. It's like a 1 in a thousand chance.
But I also need to resolve the error. Any suggestions?

How can I find the cause of the Fatal Error in a packaged game?

[raw sorrel]

I am finding a way to spawn an Actor from the server, but only have it replicate to certain clients. What would be the best practice to do so?

I'm doing client side prediction for an ability that spawns a projectile for fx. If I predictively spawn the projectile on the client, when the server spawns the projectile, it should replicate for everyone but that client.

I have some ideas for how to do this, but I suspect this might be a common issue and there may be a best practice.

Edit:
I am going for this solution, it seems like a good one
https://github.com/tranek/GASDocumentation#concepts-p-spawn

bool APAReplicatedActorExceptOwner::IsNetRelevantFor(const AActor * RealViewer, const AActor * ViewTarget, const FVector & SrcLocation) const
{
    return !IsOwnedBy(ViewTarget);
}

[latent basin]

Makes sense, so is it fine to just call a multicast then from beginplay since its called by server, or should i just call a multicast to run on server and then call that on beginplay?

[hoary spear]

Just add a "Authority" switch first

So you can separate the code ran on server vs clients

[latent basin]

Ok thanks that way it will only be run on server and not client?

[sinful tree]

If it's a replicated actor, begin play will fire on both the server and clients, and it can actually run multiple times on clients as the actor can go in and out of network relevancy which can cause the actor to be spawned and destroyed on specific clients.

This means that Begin Play is usually not the best place to run RPCs, with maybe exception being the player controller on account that it's not replicated to all clients, and it will always be relevant to the client owning the player controller. It also makes little sense to send a multicast from Begin Play on the server as the actor may not exist on any clients by the time you're calling that multicast, and the multicast would not be received by any clients.

The Has Authority node suggested by Squize will allow you to separate what is running on the server or on a client, so if you connect it on Begin Play, that'll allow you to use the "Authority" path to have things run on the server, and the "Remote" path to have things run on clients. This means you can have different functions happen based on where Begin Play is being called. It also means you don't need an RPC from the server to tell a client that an actor started its Begin Play as a client knows when that actor has Begin Play on its own.

[pseudo kernel]

I'm new to mulitplayer and encountered an interesting problem. I have some debug code which draws some debug things in a character's tick.

I noticed really bad ghosting when the net mode was set to a dedicated server, and fixed it with this:

void ASurvCharacter::DrawDebugMovementInfo()
{
    if (GetNetMode() == NM_DedicatedServer && HasAuthority())
        return;

    // Draw debug things
}

This doesn't happen in any of the other net modes, where they all work as expected without the quick return statement. Does a dedicated server netmode do something weird like draw debug strings to all clients, or run duplicate ticks?

[fallen orbit]

Has anyone had this problem? The server called reliable RPC function ClientTravelInternal() which is the ue engine code and runs on client. But APlayerController::ClientTravelInternal_Implementation() actually never happens.

[nocturne quail]

why the scope is scaled to 0.02 on all clients?

if(ScopeType == EScopeType::4x)
{
if(LocallyControlled && bOwnerisAimingLocally)
{
4xScopeActor_ptr->GetStaticMesh->SetScale3D(1, 0.02, 1);
}
}

[gloomy axle]

Hey guys, I'm having an issue when trying to join sessions. I'm able to find a session, get the name and id, and call JoinSession. It puts both players (myself and a dev friend) in the Lobby level. But we can't see each other?

https://pastebin.com/uSPznZpt

[fossil spoke]

Because the Scale is a replicated property.

If you are calling that on the Host, it will be scaled for all Clients?

[nocturne quail]

I'm doing it only on owning client, locally controlled

[fossil spoke]

The Host is LocallyControlled

[nocturne quail]

it is a dedicated

[fossil spoke]

🤷

[gloomy axle]

the player controller spawns and we can move around, but we just cant see each other. spawning and possessing pawns is replicated to the server and multicasted to clients

im not sure why we cant see each other on a session

[nocturne quail]

i will check it using breakpoints, maybe somewhere it is called twice for all clients

[nocturne quail]

player are just the actors as any other actor in the level, they should be spawned by the server, game mode

[gloomy axle]

yea we just tested that :/

[fallen orbit]

Controller call RPC function on server and in this RPC funtion, can it call this controller's another RPC function back to client?

[gloomy axle]

https://blueprintue.com/blueprint/5k0qexv3/

this is spawnplayer

no clue why we can't see each other in the lobby on the same session

we seem to be joining it correctly from JoinSession EOS method with no errors

[nocturne quail]

https://youtu.be/H0JZnWdY0k8?t=1163

[gloomy axle]

that's exactly the tutorial i followed

lol

[hoary spear]

Is there any time value that is synchronized between client server ?

nvm i cn prob live with a little uncertainty

[queen escarp]

hey guys i have a problem i have a "particle effect" on my character as a component and i trigger it by setting visability to server then rpc set visible but its only working like 10% of the time

the other times its not vissible

ideas :/ ?

components are replicated also

[grave lynx]

Hey, I have a question about multiplayer fps. Games like overwatch use first person and third person animations. That Means there is 2 gun for a player (tp and fp model).
I have 2 question, which view id doing the line trace? And do they launch a bullet for both view?

[chrome bay]

Usually the camera

[fallen orbit]

Since UObject doesn't support replication and RPC. Then how is GameplayAbility replicating?

And Can I execute RPC in GameplayAbility?

[chrome bay]

Network support can be added to UObjects but they must leverage an existing actor.

The GAS component provides that

Instanced abilities can replicate and call RPCs

[fallen orbit]

Oh, I see.

[hoary spear]

if a struct property is marked NotReplicated, will local changes stick around after the struct itself is replicated?

[woeful ferry]

components are replicated the same way as UObjects are replicated

if you replicate them

[chrome bay]

yeah

[lost relic]

So Im starting replication, And was starting to build a player controller. Currently all Input is done on the Character, But as My player is A vr character and its the only option for the player to control, Do I even need a Player controller for this?

[hoary spear]

Awesome !

[peak lintel]

Hi. I have a small question.
Material parameter values are not replicating or what I'm doing wrong here?
If I have more characters with the same skin, the emissive is changing on all characters. What I want is to change the emissive only on the character who receives damage and others to see this.

[hoary spear]

You can mark timelines for replication

[peak lintel]

The timeline is not the problem. I'm adding a fixed value and still the same. It's not changing the parameter only on the client who requested it but on all who have the same skin

[hoary spear]

I'm confused about your logic, i'll admit that

You've got a hard set instance reference?

or is it a material parameter collection ?

[peak lintel]

When, you hit an enemy, that enemy is playing an montage and everyone sees it. I'm also adding an emissive using a material parameter collection which changes the emissive on the enemy who got the hit. Now, if all enemies are having the exact same skin, the parameter is changing all the skin's emissive

[peak lintel]

Yes

[hoary spear]

Well if they're all reading from the same collection, they're all gonna change

Youd need to set the param on the material instance of that specific pawn

[peak lintel]

Should I use the SK and change the material instance?

[hoary spear]

Usually that also involves Create Dynamic Material Instance

Id also have the value as an OnRep but i guess this isnt super important

[peak lintel]

Thank you! I'll try it now

[peak lintel]

Wroked! Thanks

[solar stirrup]

Question about replicating instanced structs. If the struct has NotReplicated properties, will they be overwritten when the struct is updated by the server?

I know it's not the case with regular structs, just making sure instanced structs don't have some weird behavior

[hoary spear]

Just asked this

Suspect the answer is no there aswell

[solar stirrup]

Yeah that's regular struct replication

I suppose it's the same for instanced structs but i wanted to be sure hah

[hoary spear]

Id be surprised if it was different 😅

[coarse patrol]

Hlo guys
anybody know to make client spectate server or other player
https://wizardcell.com/unreal/spectating-system/#1-clients-cant-spectate
https://unrealcommunity.wiki/revisions/61e4ba838805f02ef3f6c996

i referred these two resource, i was able to** make it work for server** but client spectating is not working
can anybody help

[frail temple]

Can someone assist me with this, either I'm not thinking straight or I just can't find the answer. Trying to spawn an actor on Client only but when the server runs it for Client only it also spawns on other clients. It works perfectly fine for Clients but not the ServerClient. (Tried it with Client , Server & No Replication)

[dim barn]

If you spawn an actor on a client, it will only be visible on that client. The server and the other clients won't see it or be able to interact with it. So if you see it everywhere, that means you are running that spawn logic on the server.

[frail temple]

I know that, the issue is when the Client that is hosting the game spawns it for Client only, it also spawns it on the other Clients.

I don't want it spawning for the other Clients as it's just a "ghost" building for the Client to decide where they want to place it.

[dim barn]

Ahh got it. Then you must have **bReplicates **flag set to true on that actor. It has to be false.

[frail temple]

When I turn bReplicates off, it then doesn't spawn the actor when it is called from the server to the Clients . So if this is the issue, I'll assume I need to make two different BP_Actors - One with Replicates on and the other with it off.

NVM

I'm a fool, I can change bReplicates when spawning the actor.

[quasi tide]

Client that is hosting the game spawns it for Client

This is a weird. That client IS the server in this case

Unless you've modified the engine or doing custom networking

[dim barn]

He wants it to work for both Dedicated and Listen servers. That's why you have to handle 2 scenarios.

[quasi tide]

I don't see anywhere where they mention they are supporting both setups. That said - it is trivial to do.

[frail temple]

I haven't modified it. I know one of the Clients becomes the server (the host of the game). It's just when the player for the Server spawns it for themselves, it also spawned it for the other Clients and with every reeplication I tried it didn't work - I didn't know that I could call the Set Replicates after spawning the actor

[quasi tide]

So you're doing host migration?

Client has a pretty specific definition in the context of UE networking. It can easily be confused with the way you're using it imo.

[frail temple]

Not a clue 😂 Can't answer that.

[quasi tide]

Client implies that you are not the server

[frail temple]

Still learning the whole MP side of things. This was just a bump in the road for myself.

[quasi tide]

So "client becomes the server" would be host migration pretty much

Obviously client also means the player. But for most speak, client is non-server

[frail temple]

Yea i know that but when hosting a game with Advanced Sessions, the one hosting it is technically the Server (I believe)?

[quasi tide]

Yes.

[frail temple]

Most of the stuff I've done so far work perfectly fine, this was the only issue I've come across.

[quasi tide]

But when asking for help or talking about it, you don't say "the client that is the host". You just say "the server" because that's all that matters.

[frail temple]

Ok

[quasi tide]

Client that is hosting the game spawns it for Client
So with that in mind - this reads very weird if you're only in the context of Unreal.

(Again, I know client has a dual meaning here!)

[frail temple]

Yea I get you, I'm trying to figure out how I would phrase it now. Would you just the Server Player? The Player that is running the Server?

[quasi tide]

Just server - because that's all that matters

"Server spawns it for the client, I don't want it to. I only want to spawn on the server"

[frail temple]

Ok, so the issue was the server was spawning the actor for all the clients when I wanted it just on the server

[quasi tide]

Right. In which case, you just disable bReplicates (which you already know now)

[cursive steeple]

listen server?

[frail temple]

Yea, I didn't know I could call bReplicates after spawning the actor

[frail temple]

Yup

[quasi tide]

I wonder if doing a deferred spawn would be better, that way you don't set up the actor channel 🤔

@chrome bay Do you know when the actor channel actually gets set up during the actor lifecycle? (not at my IDE)

[lusty sky]

i think its created when the actor is initialized and bReplicates is set to true, that is why you need to disable it if you don't need it to replicate

[frail temple]

Mhmm, I didn't know of Deferred Spawn. Thanks for that, I'll have to see if it's possible in BP if not I can do it that way if/when I change stuff over to C++

[frail temple]

I'm just setting the default to false for now and then change it to true once it's finished setting up.

[lusty sky]

you need to set it in the constructor if you want the actor to replicate, maybe if you can show your code

[frail temple]

Can confirm, it works that way for now.

I'm using BP's for now since it's technically a prototype game.

My literal cheap cut easy way to make it work for the time being. By default I changed it to bReplicates = false and I change it to True when spawned.

[lusty sky]

Why you don't set it to true in the base class defaults (the actor class you trying to spawn)

also check replicate movement if needed

[frail temple]

I had it as True but the initial setup of it still spawns it for the Clients

[lusty sky]

thats the expected behaviour

[quasi tide]

I know that. The question is at what lifecycle event is it created.

Actors have like 14 lifecycle events or something crazy like that

[frail temple]

Hang on sorry. So I changed it to bReplicated = False after the Actor spawns as I didn't want it to Spawn for the Clients when the Server called it, that very initial setup would Spawn it for the Clients. Just setting it to False for the time being just lets me quickly test it.

Clearly my logic was flawed with the whole "Setting to False after it Spawns" because it still spawned :/

I'm just going to add a variable in after where bGhost = True > Replicate = False else True

[lusty sky]

Hmm if its a ghost to display where the actor should be placed, just spawn locally on the client without any rpc's just call spawn actor directly and make another ghost actor that is not replicated

[frail temple]

I tried that but when the Server called to do it without any RPC it still replicated.

I tried Replicates = Client/Server/No Replication and they all caused that issue for me, spawning it for the Client as well as the Server

Believe me, I thought it was going to be a simple thing but I must have done something somewhere that made it not so simple.

[lusty sky]

it is simple, you should use 2 different actors, one for ghost not replicated (bReplicates = false in class defaults) and the second actor for a building that replicates (bReplicates = true in class defaults) then you don't need to call SetReplicates function

[frail temple]

I'm only using the single actor for now, would it be bad to use a single one in this case?

[frail temple]

I mentioned here that I would make Two Actors but then I found out I could just do Set Replicates after it spawns.

[lusty sky]

maybe thats what caused the problem in the first place, try to make a child actor of your current actor and use one of them as ghost that is not replicated and make the other one replicated without calling SetReplicates function

[frail temple]

I would have probably thought of the child actor further down the track when I go over everything again and ask myself "Why did I do it this way and not the other"

I was honestly just going to use the single actor and change out the material & replicates once spawned into the world.

[coarse patrol]

can anyone help?

[abstract pike]

Has anyone had replication graph suddenly die on them recently with the GameplayDebuggerCategoryReplicator becoming None in the always relevant node?
🤔

[wanton cedar]

feelin cute, so ill ask for advice, whats the right way to specify the level when executing server travel command? i have seamless travel enabled and a BS level for a lobby..

the map is /Content/Maps/LevelTwo =/

[blazing spruce]

Ive got servertravel /Game/Maps/MAPNAME

[formal solar]

Is it possible for cheating to occur with client authoritative movement via 'add movement input' and 'add controller yaw'?

I have 2 types of pawn, 1 is visible and is move server authoritatively, the other type of pawn is less important and is invisible. Problem is this has different parameters and I am having trouble getting it to move smoothly using server authoritative movement. Since it's invisible I don't care about slight conflicts between its position on different clients (it's also not relevant to anything fast-paced). But could a player cheat by getting it to move very fast?

[serene kestrel]

Clients should be authoritative over their own inputs (i.e. key presses) but if you want to prevent certain types of cheating, the client needs to send these inputs to the server and the server processes these into movement updates. To get smooth movement in this model, the Client needs to also do the same processing and predict the movement updates the server will calculate. The default CharacterMovementComponent works in this way so as long as you're calling AddMovementInput and AddControllerYaw on the client things should be Server Authoritative and smooth

[potent coral]

how to replicate UObjects in blueprint?

i checked replication flag but it doesnt seem to work

[serene kestrel]

Afaik you can't do this for your own arbitrary UObjects in blueprint. If you want to replicate a UObject, you'll need to use some c++, or make your UObjects ActorComponents and attach them to a replicating Actor (as well as set replicates=true on the actor component)

[potent coral]

i am making an inventory system

is there any class other than actor i could use to replicate it instead?

[serene kestrel]

All replication in Unreal requires a replicated Actor to start with. That Actor can optionally replicate UObjects on it's channel using a c++ method ReplicateSubObjects. By default, Actor will replicate it's ActorComponents on this channel. If you want to replicate your own UObjects on that channel as well, you need to do some c++ (or just use Actor Components)

Alternatively, you can send all of your updates via RPC's which could maybe work depending on your data model but you'll need to handle all kinds of edge cases to ensure reliable sends of data

[wanton cedar]

ahhhh, looking at the log, it showed cant have a space between MapName and ?listen

removed that and servertravel kicked

[potent coral]

ok thanks, i will look into using actor components

but can i use components inside a component?

because my uobjects are already in an actor component

[serene kestrel]

You can, when you create them make sure to set the Actor as their Outer object though.

[potent coral]

ohh so i have to set it to the component? im currently setting it to the player character

[serene kestrel]

You want the Outer of the Actor Components you create to be the same as whichever Actor you will be replicating them on

[potent coral]

alright then that would be the player in this case i guess

[potent coral]

how would i instance a new actor component though? using construct node gives some error

[serene kestrel]

Does Add Component By Class do what you want?

[potent coral]

ahh yes thats what i was looking for, thx

[potent coral]

how would i set the outer though?

or is that done automatically in BP?

guess the outer for components is always its attached actor 🤷‍♂️

ohh no, its the target input

[supple vapor]

Does anyone know what nonOwnedActors mean when doing seamless travel? It's pulling in random actors like the controlled pawn even though the docs specifically say only the controller, player-state get pulled in by default

[serene kestrel]

Yea this is the case, Actor Components expect to have its Outer as the Actor is a component of

[potent coral]

i wonder if stacking this many components on my player would have any detrimental effects though

since they are actually attached to the player now and not the inventory component

cant use self reference for target

[serene kestrel]

There shouldn't be that much of a detrimental effect as long as your not iterating through all of your Actor's components very often

[potent coral]

well i do use components quite a lot

kinda everything is nested in some component lol

but in worst case i can use a separate actor as container i guess

mass spamming components is no bueno 😂

with uobjects i could add 100k in 1 loop no problem xD

now it freezes for a minute and then dies when i try to add 10k lol

[serene kestrel]

Ah, yea 100k objects is quite a lot...

[potent coral]

im still hoping i can get the uobjects to work, maybe im just being retarded lol

[dim barn]

@potent coral Is each item in the inventory a new component?

[potent coral]

well currently each stack is an object

[hoary spear]

sounds a bit strange I'll admit

[potent coral]

its pretty efficient, it can handle millions of items quickly

[dim barn]

But why not just have an array holding all the items?

[hoary spear]

^

And who needs millions ..

[potent coral]

well thats what i do, just the items are uobjects lol

[hoary spear]

Uobjects is pretty common

i use GameplaytagStacks

works fine

[potent coral]

but how to replicate it? `,...,´

[hoary spear]

replicateSubObject

[potent coral]

how to do that in blueprint?

[hoary spear]

can't

[potent coral]

cancer

[hoary spear]

you can do structs tho

😄

[potent coral]

structs arent powerful enough

guess components is the only way then

[hoary spear]

why are they not?

what do you miss?

or want

[potent coral]

because i cant subclass structs lol

[hoary spear]

yeah you can

well

not in bp

😄

[potent coral]

https://tenor.com/view/memes-meme-lois-falling-down-stairs-falling-down-stairs-gif-16921703

[hoary spear]

InstancedStructs exist

[potent coral]

blueprint structs are useless

why cant i just replicate uobjects and their properties lol

[hoary spear]

but

isn't item info static?

[potent coral]

no

[hoary spear]

!?

okey then x)

[potent coral]

thats basic data for all items

[hoary spear]

Count is not part of item definition, neither is durability

normally anyways

[potent coral]

but i also have some subclasses like consumables etc with more stuff

[hoary spear]

relationalDB setup would work

[potent coral]

whats that?

[hoary spear]

Instead of a superDT that holds All variables known to man

you split it in several DT's,

and let one DT point to another DT

and thus 'construct' the complete item definition on the fly

[potent coral]

thats kinda what i was trying to avoid with this system xD

[hoary spear]

sounds like you're not doing yourself a favor

[potent coral]

because i made my last inventory like this xD

but it was kinda meh

[hoary spear]

I do too, and it's awesome

All i replicate is some row pointers

(or in my case, just gameplaytags, as those are my rows)

[fierce egret]

I have a weird problem with variables. My array has 10 items, i add 2 more with some code. After adding, code goes to client side to update some widget. But when i print length of array in widget, it prints 10. But if i use Delay Until Next Tick or Delay node, it prints 12. I couldnt understand this. I am already adding array at server side first, then print it in client. Why do i need to use delay node. I know delay is not right solution and dont know what is it about.

First screenshot is when i dont use delay node. You can see it prints ADD firstly. But client doesnt print 12.
Second screenshot is when i use delay. Again, server adds firstly, and client prints 12.

[hoary spear]

how are you printing this

unlikely that you're doing OnRep

[potent coral]

replication isnt instant

[hoary spear]

And if you are, is this object pointers ?

[hoary spear]

OnRep is post replication

[fierce egret]

I print ADD in component and length in widget

[potent coral]

but yeah as @hoary spear suggested, just use OnRep to print your variable

[fierce egret]

Do you mean change replication as RepNotify?

Then print in OnRep func?

[hoary spear]

yepp

for clients

you set the array (or add to it) on the server
Then the clients will get the "OnRep" event when the item is replicated

[potent coral]

you can use it for the server aswell

[fierce egret]

It looks good, can clients set a variable which is RepNotify?

Or is it same with Replicated

[potent coral]

only server

[hoary spear]

in bp yes

i love how consistent it is

bp vs c++

😄

[potent coral]

lol

[fierce egret]

Thanks for help :)

[potent coral]

https://tenor.com/view/clownforrubixandgames-clownboy-clown-gif-25003715

[fierce egret]

I will change my codes to RepNotify but it looks better

[quasi tide]

Yes, they can. All RepNotify means is when the variable is received via replication, call the backing function. In BP - the backing function is always called. In C++, you have to call it manually when on the server.

[fierce egret]

But is it safe? Clients cant set any Replicated variable(i mean it will stay same at server). Isn't RepNotify same?

talking about cheating

[quasi tide]

This is how basic prediction works. The client updates their side and then the server may or may not correct the client when the client gets the server's value.

[potent coral]

guess i will just not use shitty unreal replication and use ye ole networking instead

[potent coral]

https://tenor.com/view/unreal-shader-confused-unreal4-unreal-engine-gif-15378565

[maiden nexus]

Hi guys! I have a question, I'm using online subsystem steam, and I'm using the dev app id 480, my project create the session successfully, but when I try to join to the session from another steam account, the project doesn't find my currently session created, it's weird
void UNSM_MultiplayerManagerSubSystem::OnFindSessionComplete(bool bWasSucessful)
{
if(!SessionInterface.IsValid())
{
FNSMOnFindSessionCompleteDelegate.Broadcast(TArray<FOnlineSessionSearchResult>(), false);
return;
}
if(LastSessionSearch->SearchResults.Num() <= 0)
{
FNSMOnFindSessionCompleteDelegate.Broadcast(TArray<FOnlineSessionSearchResult>(), false);
CreateSession(3, FString("FreeForAll"));
return;
}

SessionInterface->ClearOnFindSessionsCompleteDelegate_Handle(FindSessionCompleteDelegateHandle);
FNSMOnFindSessionCompleteDelegate.Broadcast(LastSessionSearch->SearchResults, bWasSucessful);

}This always create a new session because the searchresult it's 0

[hoary spear]

Personally i had trouble with that myself and just jumped over to advanced steam sessions 😅

[grand kestrel]

Can we not post memes in programming channels, they're distracting

[rain condor]

Anyone knows how install als replicated plugin?

[potent coral]

well its not like the inventory will be used that often

and in worst case i can switch to a system that isnt object oriented

yeah thats on my radar rn too

wdym?

[grand kestrel]

If you're not even willing to go to C++ to create a simple replicating UObject then I don't understand how you're intending to roll your own networking solution

[potent coral]

well im making a blueprint only project, so doing it the unreal way is kinda my only option xD

[quasi tide]

You're going to have a bad time if you're trying to do networking as BP only.

[grand kestrel]

Is there even such a thing as a blueprint only project when the entire engine is built on C++
Adding C++ to your project is no different

[quasi tide]

Not saying you can't mind you. But so many things are simply not exposed to BP

[grand kestrel]

I don't understand the purpose of BP only

[quasi tide]

And depending on your goals - it might actually simply not even be possible.

[potent coral]

well i already have a working blueprint inventory system for multiplayer, im just trying to make it in a new/better way

[grand kestrel]

Anyone making a multiplayer inventory instead of using ArcInventory is either doing it for the sake of learning or insane imo

[potent coral]

but i wasnt aware how cancerous networking uobjects in blueprint was when i started making it xD

[grand kestrel]

You pretty much aren't going to make something better

Its not cancerous, its just not supported
There's no reason you can't just do it in C++ and expose your replicated UObject to BP

[quasi tide]

Guess most people who are doing networking are insane.

[potent coral]

well this new system has no problems adding 100k new objects in a single for loop

[grand kestrel]

I don't know what that means 😄

[quasi tide]

I haven't heard of this plugin and it doesn't look too enticing to me. Especially considering I don't use GAS at all. Definitely don't want a plugin that has that as a dependency.

[potent coral]

for comparison, when using actor component in the same system, it cries already when adding just 100 objects

thats literally 1000x worse performance lol

[grand kestrel]

Its net predicted inventory that works for almost anything you can think of
You don't need to be particularly familiar with GAS to use it, only GameplayTags

[quasi tide]

It's not a matter of being familiar with GAS for me. It's a matter of not wanting that dependency.

[grand kestrel]

Why's that?

[quasi tide]

Because I don't use it and it's just extra crap

[potent coral]

u dont need GAS to have gameplay tags

[quasi tide]

Not to mention - this is a code plugin, so that is potentially $150 per seat. However the rep at Epic wants to define it that day.

[grand kestrel]

What? Its not per seat

[quasi tide]

Cool. The topic is about a plugin that specifically says it requires that GAS is enabled.

[grand kestrel]

Licensing terms are clear, you can share with people working on your project

[quasi tide]

Not according to the last rep I got with from Epic themselves.

[grand kestrel]

I will continue to go by the licensing terms

[quasi tide]

If you have 5 people are working inside of the plugin (IE the code part), you need 5 copies of it, per Unreal's own terms

There was a big talk about this in #programmer-hangout

Along with screenshots of discussions with Epic

But if your level designer is using it (for w/e reason), just using it, you don't need the additional "seat"

[grand kestrel]

What does this even mean?
You mean if they're modifying the plugin itself directly?

[quasi tide]

Good question. Maybe you'll have better luck getting Epic to clarify.

[grand kestrel]

Anyway sorry for getting off-topic
Didn't mean for it to turn into a thing 😄

[fossil spoke]

Guys move to a different channel please, this is offtopic now

[quasi tide]

We stopped

[fossil spoke]

👍

[fierce egret]

Hi, i thought about it again but i guess i shouldnt use RepNotify. Because i dont want to execute these codes on every change of variable, mine is very specific. I dont think that i can explain my system here but isnt there another way to sync variable between server and client? Thanks again

[potent coral]

you can add a condition / branch at start of your rep notify aswell 🙂

or change replication conditions

or could also use a RPC to print your message on client with value from server

[fierce egret]

I thought about it but i don't know, it looked like it would make the codes spaghetti

I will check replication conditions, thank you

[potent coral]

well yeah thats spaghet for sure so i recommend OnRep instead^^

[dark edge]

What if you didn't want to use GAS?

[potent coral]

nein! not zeh GAS!

https://tenor.com/view/hans-flammenwerfer-get-ze-gif-15834368

[fossil spoke]

@potent coral Please stop posting memes. If you want to post memes do so in #lounge

[potent coral]

💔

[grand kestrel]

I hadn't considered that people might have a reason to avoid it, that's all

[olive kraken]

Hey, double checking something here.

If I get the game instance and cast it inside a widget class, and right after I load a save object, does that mean that 100% I'm getting the save object of the local machine and not any other server and/or client?

Or, in other words, what is the best method to retrieve a save file within a widget?

[quasi tide]

GameInstance is local only

Widgets are local only

So if you're getting a save game that way, it is the save game on the local machine.

[gloomy axle]

Hi all,

I'm having a bit of an issue hosting a dedicated server via a batch file, I followed Epic Games' EOS session tutorial, but at the very end myself and another dev (on a separate machine) can't seem to see each other when joining the session. We're using UE 5.2. and the latest EOS. Here's the general flow:

1. We both open the game application
2. I run StartServer.bat with this command:
   "C:\Program Files\Epic Games\UE_5.2\Engine\Binaries\Win64\UnrealEditor.exe" "C:\Users\MyName\Documents\Unreal Projects\ProtoPlaneFootball\missile-ball\ProtoPlaneFootball.uproject" Lobby -server -log -epicapp="Server" -options pause
3. We both login correctly on the game application, through EOS Login. We confirm this by being able to see the overlay and our username in-game.
4. We click Play Game to bring up a sessions list
5. In the sessions list, we both see the same session id and session container (just a join and delete button)

When we both join the session, we can't see each other.

I confirm the session is being created via the StartServer batch file by checking the dev portal, so I'm not sure if it's due to the join session logic or if I'm missing something crucial. Below is my JoinSession logic in my EOSGameInstance.cpp
https://pastebin.com/DnjfUKtC

we've been trying to see each other in-game for a while, not really getting anywhere

[olive kraken]

I see, thanks! So if I'm not wrong, I don't even need to use the game instance, any save game that I cast within a widget will be the save game of that local machine. Correct?

[quasi tide]

If the widget is what is loading locally, then yeah.

Because you could also send a save game through the network, as an FYI.

So assuming you're not doing that

[olive kraken]

Yeah, not the case, trying to retrieve all saved settings without getting wrong save objects

useful, needed to double check for peace of mind, thanks!

[gloomy axle]

Any clue why we might not be able to see each other?

[gleaming crane]

Hi everyone, just wondering if Advanced Sessions is updated for use with 5.2? If It is, it is recommended to use if I'm trying to do multiplayer hosted servers through Steam?

[fossil spoke]

What does you Logs say?

The Logs will tell you if it managed to join successfully.

[gloomy axle]

It says Created Session, then nothing afterwards

[fossil spoke]

For both players?

[gloomy axle]

yeah

[fossil spoke]

Why are you both calling Create Session???

[gloomy axle]

Oh my bad thought you were asking something else

the command prompt logs shows it created the session

but nothing afterwards about joining, despite using JoinSession on the same name

[fossil spoke]

So one player calls Create Session?

[gloomy axle]

no player does, it's ran via a batch file

[fossil spoke]

Which would be the host.

[gloomy axle]

it's a dedicated server

[fossil spoke]

Ok then Im talking about the Players Logs

What does their Logs tell you about connecting to the session?

[gloomy axle]

Well I see the connection info before and after the client travels, it changes but that's about it for logs

then it puts them into the staging area

but there's nothing on the dedicated server, hosting the session, command prompt that shows they join

[fluid prawn]

Question, with sub stepping used for simulation of anything on the client side (Movement, Physics), if the client simulation is fixed and anything is substepped below the upper limit does this data need to be also replicated to the server or can the client just send the final result of the simulation to the server and then the server just interpolates that data as is (meaning the server doesn't need to substep also).

[thin stratus]

@fluid prawn the CMC at least performs substepping on both ends.

But of course only once RPC

Not one per substep

At least the current cmc

5.4 should come with a new system iirc

At least they said so at UnrealFest

[fluid prawn]

Thanks, I was talking with a dev and he was doing substepping on the client but wasn't simulating it on teh server side so I was wondering if Unreal was doing it like you described

he had issues with desyncing also

after adding client side substepping and was just sending the movement to the server as is

[thin stratus]

Substepping is meant to have a more precise result. Since server compares their result against the clients one, it must to the steps too

[fluid prawn]

yea

well I didn't know but logically in my head I was thinking like, well if say I substep all clients at 60 hz or w.e ideally I'd like to sync the server at the same rate

I assume CS works this way too I think

128 60 tick etc

[thin stratus]

Well client does not send the substeps

[fluid prawn]

no ofcourse

I mean like the server does the calculation also

ie it substeps based on client data sent

[thin stratus]

Yeah but the server uses a calculated delta time for clients iirc

Basically time since last move I guess

[fluid prawn]

yeah

[thin stratus]

I'm eager to know how Movement 2.0 will be

I really hope it will allow more than just characters

[fluid prawn]

I had someone ask epic about it and give me some little details

[thin stratus]

And more systems to use prediction

[fluid prawn]

was something along the lines of modularity and roll back

but he said that it wasn't something you couldnt sit down and implement given time

[thin stratus]

Pretty sure since 5.3 shipped, one can scout main branch for this

[fluid prawn]

but for new people its def a time saver

[thin stratus]

I think right now the engine has a huge problem with only the CMC being properly predicted

And every other system running its own prediction code, not in sync with another and often only half assed for the given problem

Time will tell

[fluid prawn]

yeah, it's needed a rework since I first came into unreal. I am glad they are working on it. I remember there was a prediction plugin I was seeing pushed on the github

that also kinda died, rumors the person working on it left or something

Thanks @thin stratus for the wonderful response

[thin stratus]

The person did leave yes

The plugin is also still there. They update some small stuff on it. Could be that it's the core of the new movement. Who knows

[fluid prawn]

https://tenor.com/view/the-x-files-i-want-to-believe-trust-issues-trust-gif-5016443

[quasi tide]

It should. According to their roadmap.

It pretty specifically says a goal is to allow it to be on any actor

https://portal.productboard.com/epicgames/1-unreal-engine-public-roadmap/c/1281-mover-2-0

[coarse patrol]

can anyone help me with this

[queen escarp]

Hey eXi- You got time to help me 🙂 ?

[hoary spear]

You shouldn't randomly ping people

If he's here, got time to help, and want to help, he'll answer

if not, bugging him with pings is not a good way to go

[queen escarp]

y i know you right

its just he started helping me 1 week ago with the thingi :/

but yeah your right

[hoary spear]

Pose your question, and somebody else might be able to answer

Gotta expect to do a little work yourself as well, understanding it as best you can

[queen escarp]

yeah ofc ive tried trust to

me*

i guess i can ask again it quite much thats why ppl wont answer cuz its not just "a wrong" its not working at all really

[hoary spear]

You should try and reduce your problem to as few things as possible

and be precise when describing it

showing code helps alot

[queen escarp]

yeah ok so firstyl what im after is a UI lineup of the friendly players

https://blueprintue.com/blueprint/q42g8v1l/

yeah so its quite alot really messy but this system is suppose to add/remove widgets in the slots based on ppl joining / leaving

problem rn is that nothings happening

[hoary spear]

And what have you found out from debugging?

[queen escarp]

yeah so the first bugg we had was that it got a null reff from the playerhud widget from wich eXi told me to relloacte it to the player controller instead of the player wich i then did (was alot of work) but that the first thing now that works

[hoary spear]

But whats debugging it now telling you?

What code is not fired or which variable is not valid etc

[queen escarp]

well

thats like the hard part

the "character from the friendly hero is NOT VALID*

and that being set up like this

from this part calling it

[hoary spear]

You shouldnt use GetPlayerController for one

Whats calling SetCharacter ?

Is it valid when its set?

Is that server side or client side ?

And... are you checking a replicated variable in a widget?

Or do you have a replicated variable in a widget?

The reason i ask is because widgets dont replicate

So having a replicated variable inside a widget doesnt make sense

Not sure what Exi suggested, but wouldnt it be reasonable tonread out the player array from the gamestate and use that to chevk affinity/team and add the widgets based on that list?

[queen escarp]

im not sure tbh he made this example the wholeness but we never "finnished" thats the part

im not sure of any of that i just did what he suggested

maybe this is a to hard way to do it i maybe should find a easier solution :/?

[hoary spear]

If theres so much insecurity at this stage i kinda wanna suggest dropping multiplayer if thats an option 😅 it adds a ton of complexitiy

Steep leaening curve, many gotchas

Being able to debug, understanding the framework, server authority etc etc etc

[queen escarp]

im to deep into the proeject to drop it 😛 everything else works fine its just this part im struggeling with with mp

[hoary spear]

Nothing special about this vs the rest 😅

You didnt answer most of my questions tho

[queen escarp]

yeah im trying to get it but it messy

[queen escarp]

i mean

in my head this logic should work ?? im getting all gamestates and getting each playerstate from that and getting info from each ones individuall state ?

right ?

[hoary spear]

You're cutting so much, it's hard to see the full picture

But im theory it should work if their replication is complete

[queen escarp]

im just testing

right ?

so now it only gives the local players info on all frames

[hoary spear]

Does this work?

[queen escarp]

its only displaying its own name

its own states*

oh right could the problem be

in the player state this is how im setting player character

by get player character

thats could be the issue right

or why is it not working :/&

[coarse patrol]

u basically want a player list ryt?

[queen escarp]

Y

@coarse patrol exactly

[coarse patrol]

i recommend u check this video
https://www.youtube.com/watch?v=yP9mdOUHKkE&t=3s&ab_channel=Kekdot

[queen escarp]

will do ty!

[potent coral]

why in the player state?

[queen escarp]

just testing stuff

[queen escarp]

ok so i remade the whole thing

based on the tutorial

@coarse patrol

since the tutorial is not exactly what im after obviously im trying to adjust it but it was basicly what i already did before but missed a few things, tho now im stuck at the same problem

so now it works by when pll joining / leaving the game the Widgets gets updates removes/added correctly

however the update information dose not

this is the problem

theyre all displaying player 1´´s info

@hoary spear

[hoary spear]

What is player char bp parent anyways?

[queen escarp]

thats the "player character"

[hoary spear]

Again, these random tags...

[queen escarp]

aye it begann as something else but that was months ago and renaming stuff in unreal ive noticed is a big nono X)

[hoary spear]

No need to cast to playerstate. Get pawn from generic playerstate

[hoary spear]

I ment random pings

[queen escarp]

oh'*

aye sry xd though u would be interessted since u started to help 😛

so this one ?

😮

[hoary spear]

Yepp

[queen escarp]

its working

noooicee

i think

altho

one small thing

now its adding the ammount of players in game

i dont want it to add "self" only friendly players

[hoary spear]

Check the owning controller of the playerstate

And if its equal to the owning controller of the widget, block it

You also dont need to cast to your game instance fyi

[queen escarp]

im not casting to my game instance :/ ?

[hoary spear]

In the start you are

[queen escarp]

thats the game state

[hoary spear]

Ah same

Dont cast it if you dont need it

[queen escarp]

oh, well its a custom one so then i have to ?

[hoary spear]

No

[queen escarp]

i just did as the tutorial said

[hoary spear]

Custom is extension of basic

Screw the tut

Trust me

[queen escarp]

oh ok

[hoary spear]

😈

[queen escarp]

so i just get the game state really ?

[hoary spear]

Ye

And grab playerarray from there

[queen escarp]

yy

testing

hm aye that dident work :/

[hoary spear]

Which part

[queen escarp]

when i only get the game state

comparre to casting

[hoary spear]

Its the same gamestate

[queen escarp]

oh yeah my bad

[hoary spear]

Casting doesnt fix invalud gamestate

[queen escarp]

thats noit the problem

[hoary spear]

Exactly

[queen escarp]

ok so on my client´s its not showing the host

[hoary spear]

Thats the point right?

[queen escarp]

erhmm so this is weird

server shows all 4 client 1,2 shows only 1 and client 3 shows all 4

wtf

[hoary spear]

Ok pc is not replicated

My bad

Check if the playerstate is == owning players playerstate

Or rather !=

[queen escarp]

https://blueprintue.com/blueprint/ljxzf432/

like so ?

[hoary spear]

If its equal its the owning players playerstate

Otherwise its another clients playerstate

Your checking playerstate against playercontroller

[queen escarp]

oh right

[hoary spear]

You gotta keep track of the object types you're comparing

[queen escarp]

so acctualy like this ?

[hoary spear]

Yepp

[queen escarp]

hm ok idnno what happening but this is weird

displaying 3 2,2 1

[hoary spear]

Assuming you plugged in the owning player

[queen escarp]

yy

[hoary spear]

When you made the widget

[queen escarp]

did

[hoary spear]

Is it still updated on tick?

[queen escarp]

no

[hoary spear]

Timing is an issue

Replic takes some time

[queen escarp]

so basicly its updating in the game mode with the login / logout

[hoary spear]

Try it on tick just to verify

[hoary spear]

Gamemode is server only

[queen escarp]

yeah and that calling the fucking Updateplayerlist

botttom right

[hoary spear]

Also swap for retriggerable delay

[queen escarp]

ah smart

[hoary spear]

And change it to 1 sec

[queen escarp]

aye thats smarter % better ofc but same issuue

[hoary spear]

Same still?

[queen escarp]

so the game mode calls this in the game state

rep notify updates the widget

[hoary spear]

Check if the widget is updated multiple times

[queen escarp]

hm thats weird

[hoary spear]

You dont need to set arrray w notify

Im not sure thatt works?

If ttheres no changes

[queen escarp]

again the tutorial said so 🙂

im doing listen server tho could that matter ?

[hoary spear]

No

Id have a "playerarraychanged" rpc tbh

But idk

Hard to verify your issue

[queen escarp]

instead of rep notify ?

aye :/

[hoary spear]

But youd want a delay between the replication, and the event on the clients

I shame delays relentlessly for network code

So i dont approve of my own suggestion

😅