#multiplayer | Unreal Source | Page 621

lost inlet Mar 2, 2021, 3:19 AM

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https://github.com/EpicGames/UnrealEngine/commit/c8e3fd1ddfec261af7bb0d54199058de70416712#diff-96df37a2ec77d4db51291d0c6d2dbfcfcb2c4ce04cdab4b2b7b130bd56665644

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I'm glad this finally got addressed

meager spade Mar 2, 2021, 3:29 AM

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What is it ?

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On phone no github login lol

unborn nimbus Mar 2, 2021, 3:48 AM

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meager spade What is it ?

Modified CreateUniquePlayerId to have a config driven mapping of foreign net id type to local net id type, in case you have a local online subsystem that wants to provide special handling of foreign unique net id types

keen ivy Mar 2, 2021, 4:02 AM

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is it possible to send data from client to server when they dont both execute the same code path?

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Im having trouble understanding how to just send data from client to server

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im thinking of it like an http request and its totally screwing with my head

lost inlet Mar 2, 2021, 4:26 AM

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unborn nimbus Modified CreateUniquePlayerId to have a config driven mapping of foreign net id ...

well it also changes the check in AGameModeBase::PreLogin to actually support multiple OSS types, not just the "default"

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which is handy for implementing cross-play

rich ridge Mar 2, 2021, 4:27 AM

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yes even I was also facing this issue and ultimately I had to override the PreLogin to add support for two OSS.

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Now I guess it will be painless

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and tricky part is most people don't know about this.

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and the client connection to server will be dropped if OSS don't match, and dev will be pulling their hairs

lost inlet Mar 2, 2021, 4:29 AM

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it came from the 4.25Plus stream too, which is the 4.25 compatible stream but with PS5/XSX TRC stuff

rich ridge Mar 2, 2021, 4:30 AM

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ohh cool

wheat magnet Mar 2, 2021, 5:59 AM

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need your help

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so the question is "can we make a multiplayer game in unreal engine without replication?" using only websockets etc?

plain torrent Mar 2, 2021, 6:09 AM

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Does anyone know if Amazon Gamelift supports 4.26? I'm only able to see up to 4.25 and getting a headache

lost inlet Mar 2, 2021, 6:14 AM

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isn't it just a REST API? why would that be tied to an engine version

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plus gamelift is an expensive service too

peak sentinel Mar 2, 2021, 6:16 AM

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lost inlet plus gamelift is an expensive service too

Whats your recommendation?

lost inlet Mar 2, 2021, 6:16 AM

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we were with multiplay, we moved to zeuz, they both offer bare metal servers which will be cheaper than cloud

peak sentinel Mar 2, 2021, 6:18 AM

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I see, thanks

plain torrent Mar 2, 2021, 6:19 AM

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When I put the gamelift plugin into my project I'm getting "engine modules are out of date" error

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And I'm just trying to avoid rebuilding in VS again for the 4th time in 24 hours

lost inlet Mar 2, 2021, 6:20 AM

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if it's installed to your game project, just build the game project

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which will build the plugin

plain torrent Mar 2, 2021, 6:21 AM

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I'll give that a go thanks!

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That's sorted it! You're the best

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any way to estimate cost on Gamelift? We're only a team of 5 network testing, not actually using for public play

rich ridge Mar 2, 2021, 6:26 AM

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@plain torrent remember, the pricing estimation on Gamelift page is only for 15 days. its a dirty trick gamelift

plain torrent Mar 2, 2021, 6:29 AM

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Blimey, that does look like it's going to get pricey.

lost inlet Mar 2, 2021, 6:34 AM

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if it's just for testing couldn't you just use a cheap VPS on something like digitalocean or vultr?

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or even hosting locally

plain torrent Mar 2, 2021, 6:38 AM

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I use Digital Ocean for our Perforce but I'm not great with Linux, how tricky would it be to get something set up on there?

rich ridge Mar 2, 2021, 6:39 AM

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Linux is damm easy man,

lost inlet Mar 2, 2021, 6:39 AM

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if you have a way of getting your build onto a server, you'd just boot it using the command line

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assuming you have a linux build of your dedicated server

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which you'd need for gamelift anyway I believe

plain torrent Mar 2, 2021, 6:40 AM

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I've been building it as win64 so I'm assuming I'll have to set up a new project?

lost inlet Mar 2, 2021, 6:40 AM

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no?

plain torrent Mar 2, 2021, 6:41 AM

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Yeah ignore that sorry, misread entirely

lost inlet Mar 2, 2021, 6:41 AM

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I didn't know gamelift even supported windows builds

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though windows typically adds to the cost for server providers

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due to licensing

plain torrent Mar 2, 2021, 6:42 AM

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Looks like I'm downloading Ubuntu 😆

lost inlet Mar 2, 2021, 6:43 AM

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well you can use the cross-compile toolchain to cross-compile a linux build from windows

rich ridge Mar 2, 2021, 6:43 AM

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gamelift supports windows.. but adds licensing cost in final bill

lost inlet Mar 2, 2021, 6:43 AM

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yeah, not worth it

plain torrent Mar 2, 2021, 6:44 AM

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I've not used cross compile before, should that be pretty straight forward?

lost inlet Mar 2, 2021, 6:44 AM

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well there's guides on it

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https://docs.unrealengine.com/en-US/SharingAndReleasing/Linux/GettingStarted/index.html

Cross-Compiling for Linux

Download the Linux cross-compile toolchain.

plain torrent Mar 2, 2021, 6:44 AM

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thanks!

rich ridge Mar 2, 2021, 6:45 AM

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if you experienced software engineer, you can get the logic easily

lost inlet Mar 2, 2021, 6:46 AM

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though we compile our linux server build natively, but this should work pretty much the same

rich ridge Mar 2, 2021, 6:46 AM

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lost inlet though we compile our linux server build natively, but this should work pretty m...

any specific reason for doing this

lost inlet Mar 2, 2021, 6:47 AM

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we compile windows and linux in parallel on different machines

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so why cross-compile

rich ridge Mar 2, 2021, 6:47 AM

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ok

rich ridge Mar 2, 2021, 8:34 AM

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wheat magnet so the question is "can we make a multiplayer game in unreal engine without repl...

Any specific reason which made you think of wek sockets or you have any requirement which engine replication can't fulfill and we socket can do???

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I do remember long back some people asking about nodejs being replacement for dedicated servers and they were trying to make a POC for that.. but not heard from them in a while in this channel... May be they dropped it or made it..

marble gazelle Mar 2, 2021, 8:41 AM

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in theory one can work fully without unreals network layer not sure if its easy to remove / or how good it's interfaced, but since its open source, there should be a way of replacing it with what ever netcode one wants \o/ if its worth the effort depends I think

light smelt Mar 2, 2021, 8:42 AM

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which one should i use in a constructor of an actor component class?

bitter oriole Mar 2, 2021, 8:43 AM

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bReplicates

light smelt Mar 2, 2021, 8:43 AM

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why?

rich ridge Mar 2, 2021, 8:45 AM

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@marble gazelle actually one of the module from engine repo do does networking and replication to python backed framework.

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https://github.com/EpicGames/UnrealEngine/tree/release/Engine/Plugins/AI/UE4ML

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so yeah it is possible to do but needs time and good effort

bitter oriole Mar 2, 2021, 8:46 AM

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@light smelt SetIsReplicatedByDefault does not exist on actors and SetIsReplicated is for runtime

light smelt Mar 2, 2021, 8:47 AM

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huh? it doesnt exist? but it does

bitter oriole Mar 2, 2021, 8:47 AM

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Not in Actor.h it doesn't

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It's a component method

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For actor components you should use SetIsReplicatedByDefault

light smelt Mar 2, 2021, 8:48 AM

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bitter oriole Mar 2, 2021, 8:48 AM

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Ah, but you asked about components

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Then it's SetIsReplicatedByDefault

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For actors it's bReplicates

light smelt Mar 2, 2021, 8:49 AM

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what's the difference between an actor and an actor component?

bitter oriole Mar 2, 2021, 8:49 AM

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They're completely unrelated classes

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Except that actors have components inside them, of course

light smelt Mar 2, 2021, 8:50 AM

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so an actor can have an actor component!?

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*multiple actor components

bitter oriole Mar 2, 2021, 8:50 AM

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Actors usually have many actor components, yeah, that's kind of how they work

light smelt Mar 2, 2021, 8:51 AM

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ah ok makes sense

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so components in unreal are objects but in unity components are just scripts right? so in unreal a component is more like a gameobject in a prefab in unity.

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(hope that wording made sense ^^)

bitter oriole Mar 2, 2021, 8:54 AM

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No idea what Unity does

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If you come from Unity, there is a nice doc page that explains the architectural differences

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https://docs.unrealengine.com/en-US/Basics/UnrealEngineForUnityDevs/index.html

Unreal Engine 4 For Unity Developers

Translate your Unity knowledge into UE4 so you can get up to speed quickly.

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And of course, https://docs.unrealengine.com/en-US/ProgrammingAndScripting/ProgrammingWithCPP/UnrealArchitecture/Actors/Components/index.html

Components

Explanation of Components and descriptions of the various types available.

light smelt Mar 2, 2021, 8:57 AM

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thanks 🙂

tawny talon Mar 2, 2021, 9:56 AM

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First, big thanks to Authaer, you are absolutely right! In case anyone wonder about my problem: I replicated the config actor, yet since I didn't seperate the client/server version of spawning the actor, in fact there are 2 actors on the client end (one spawned by client PC, one replicated from remote PC), and my variable was set to the locally spawned actor, not the replicated one.
Solution: Make the spawning event server only, and make sure the variable is set to be replicated (so that the client PC knows to refer to the replicated actor)

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Now here I come with a very beginner and conceptual question: what's the best practice to use physics? Should the calculation happen on the server, on the client(called result event on server), or mixed?

chrome bay Mar 2, 2021, 12:01 PM

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So long as you're using Seamless travel you can override the CopyProperties / OverrideWith functions to copy data to the new player state in the new level

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The actor itself is always spawned anew but that's where you get a chance to copy data between old and new

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CopyProperties is the one for seamless travel I think

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Oh and there is SeamlessTravelTo also, which calls that

kindred widget Mar 2, 2021, 12:05 PM

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@tawny talon Unfortunately that's not quite as beginner of a question as you'd think. There isn't really any party line for physics in UE4 at the moment besides to use it at your own risk because it doesn't work very well by default and requires quite a bit of custom implementation. In the end the shortest answer to that question is that it highly depends on your intended use and the gameplay you're after.

pallid stone Mar 2, 2021, 12:11 PM

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So I am getting this as a message in my logs when trying to find servers using the steam online subsystem

LogOnline: Warning: OSS: Async task 'FOnlineAsyncTaskSteamFindLobbiesForFindSessions bWasSuccessful: 0 NumResults: 50' failed in 15.095481 seconds

Any suggestions on fixes?

chrome bay Mar 2, 2021, 12:11 PM

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Are you using your own App ID?

pallid stone Mar 2, 2021, 12:13 PM

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No, the default for spacewar

chrome bay Mar 2, 2021, 12:14 PM

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That's probably the issue. It finds 50 results, but none are compatible with your game

pallid stone Mar 2, 2021, 12:14 PM

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is it because I am trying to make my own version using two instances of the game?

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So one as a server, the other as a client to join

chrome bay Mar 2, 2021, 12:14 PM

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You can't run two steam clients from the same machine that's for sure

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Has to be two different machines (or a VM) and two different steam accounts

pallid stone Mar 2, 2021, 12:14 PM

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I have maxsearchresults set to 1000

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Right ok, thank you

frank birch Mar 2, 2021, 12:17 PM

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I am having problems making ServerTravel work 😦
The server travels, ListenServer also travels, but clients don't.
Is it broken on the editor? 🤔
I tried with and without seamless travel and no dice
(UE 4.26.1)

gilded stump Mar 2, 2021, 12:18 PM

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i need someone who can dev

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im making a game

chrome bay Mar 2, 2021, 12:18 PM

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@frank birch pretty sure you can't travel in editor

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Whether seamless or not

frank birch Mar 2, 2021, 12:19 PM

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@chrome bay thx, I just got an idea: two standalones an have one create a listen server and the otherone join anismart

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HA, GOTTEM.
(creating 2 standalone instances, having one host and the other join and then the servertravel works rooHappy )

gilded stump Mar 2, 2021, 12:28 PM

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Ty

potent cradle Mar 2, 2021, 12:50 PM

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Is an unpossessed pawn able to receive a multicast from the server?

chrome bay Mar 2, 2021, 12:51 PM

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yep

potent cradle Mar 2, 2021, 12:51 PM

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Oh, I think I know what's happening. The player actually doesn't have anything possessed yet, so I reckon the multicast is failing the relevancy distance check

winged badger Mar 2, 2021, 12:52 PM

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that depends

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its not a distance to your Pawn thats measured

potent cradle Mar 2, 2021, 12:52 PM

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Oh 🤔

winged badger Mar 2, 2021, 12:52 PM

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its the distance to whatever you send via ServerUpdateCamera last

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most cases have camera attached to Pawn so Pawn is roughly the center of relevancy distance

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but its measuring from whatever camera you're using atm

potent cradle Mar 2, 2021, 12:53 PM

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That's odd then, I wonder why it's not receiving the event

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I'm right at the pawn

winged badger Mar 2, 2021, 12:53 PM

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and all ACtors receive MCs

potent cradle Mar 2, 2021, 12:53 PM

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(Pawn is unpossessed, and player also has nothing possessed)

winged badger Mar 2, 2021, 12:54 PM

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doesn't matter who ownes them or possesses them

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there is always achance you did some weird spawning and its not the same Pawn

potent cradle Mar 2, 2021, 12:54 PM

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It's an actorcomponent on a pawn, multicasting there, and I'm trying to get the event to be received within the same AC.

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The server get it, but client not

winged badger Mar 2, 2021, 12:55 PM

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also, why would you MC on BeginPlay of anything?

potent cradle Mar 2, 2021, 12:55 PM

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It's not on beginplay though

winged badger Mar 2, 2021, 12:55 PM

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spawned implies it is

potent cradle Mar 2, 2021, 12:56 PM

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Usecase is that I spawned a character as a preview, which I have not yet possessed.

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(So player can swap characters through UI without committing the PC to a pawn before the player has confirmed)

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On accept, I possess

(the multicast is unrelated to all this though, and happens far past BeginPlay)

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Christ. I hadn't worked on this component in a while, just noticed I never flipped replicates on the AC

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https://tenor.com/view/facepalm-embarrassed-ohno-stephen-colbert-fa-gif-4384274

Tenor

multi facepalm

▶ Play video

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Sometimes the answer is simpler than expected. Good to know about ServerUpdateCamera though, will note that down.

kindred widget Mar 2, 2021, 1:46 PM

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So... Here's a fun one. I have a subclassed HISM component. Component is replicated. Instances of said component are in identical places on client and server. I'm uncertain of the terminology, but when a non locally controlled pawn, that is not on the server jumps onto one of these components, their character "disappears" from all clients. Server still sees them in the correct location. After some debugging I've found that on clients, any non locally controlled character is teleported to near 0,0,0, and then simply continually falls until that player walks off of the HISM component or jumps.

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This would be much easier if I was getting errors or something. But as it is, I have no idea how to debug this.

winged badger Mar 2, 2021, 2:01 PM

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CMC has a reference to the base

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a primitive component you're standing on

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your HISM instances are not net addressable

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its where i'd start looking, anyhow

kindred widget Mar 2, 2021, 2:03 PM

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Hmm. I thought that replicating them would solve that.

winged badger Mar 2, 2021, 2:03 PM

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never encountered that particular issue

kindred widget Mar 2, 2021, 2:03 PM

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Ironically I didn't have this problem when I didn't replicate them. Although that makes sense now... if CMC thinks it's standing on that component, which is at 0,0,0.

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I have.. No idea how I would even begin to start addressing that? Surely there must be a way to use HISM components with networking stuff. How does it work when the HISM are loaded with the map? That doesn't throw the replication error about not being able to resolve the floor, or the disappearing issue of teleporting the character to the component.

silent valley Mar 2, 2021, 2:15 PM

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@kindred widget At one stage I made HISM Foliage component replicated, and although it worked I was seeing warnings in the log saying that it shouldn't be.
But I never saw any problems like you're describing. The worst I had is just that client and server disagreed about which instances were visible and the client would jump about when too close to one of these problematic instances. this was on 4.25 and since then I changed the design so it's not the component that's replicated.

floral crow Mar 2, 2021, 2:17 PM

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I changed these values on DefaultGame.ini, then made a new build. Profiling showed that the new bandwith limits were ignored. How do I go about changing them?

TotalNetBandwidth=128000
MaxDynamicBandwidth=28000
MinDynamicBandwidth=16000```

chrome bay Mar 2, 2021, 2:20 PM

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MaxClientRate=10000
MaxInternetClientRate=10000```

floral crow Mar 2, 2021, 2:20 PM

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How do you set these settings?

chrome bay Mar 2, 2021, 2:20 PM

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Worth pointing out that Unreal doesn't do any hard bandwidth limiting

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Just considers the connection as "saturated" beyond that point (the IpNetDriver settings anyway)

meager spade Mar 2, 2021, 2:21 PM

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[/Script/Engine.GameNetworkManager]

floral crow Mar 2, 2021, 2:21 PM

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chrome bay Worth pointing out that Unreal doesn't do any hard bandwidth limiting

Unreal Insights shows me than no packet goes over 8000 bits, and on a network heavy scenario Insights looks like a horizontal rectangle

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For reference

floral crow Mar 2, 2021, 2:23 PM

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chrome bay Just considers the connection as "saturated" beyond that point (the IpNetDriver ...

And what's the practical implication of this?

chrome bay Mar 2, 2021, 2:23 PM

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Can't find the dang post now

floral crow Mar 2, 2021, 2:24 PM

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chrome bay ```[/Script/OnlineSubsystemUtils.IpNetDriver] MaxClientRate=10000 MaxInternetCli...

I made these ridiculously big to rule them out, still capped at 8kb per connection

MaxClientRate=4000000
MaxInternetClientRate=4000000

[/Script/Engine.Player]
ConfiguredInternetSpeed=4000000
ConfiguredLanSpeed=4000000```

floral crow Mar 2, 2021, 2:25 PM

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meager spade `[/Script/Engine.GameNetworkManager]`

On DefaultGame.ini?

meager spade Mar 2, 2021, 2:25 PM

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yes

floral crow Mar 2, 2021, 2:26 PM

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I was expecting those setting to uncap the 8kb packet limit. Am I wrong in assuming this?

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Why did you increase those numbers @meager spade , what were you aiming to improve

chrome bay Mar 2, 2021, 2:33 PM

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What happens when you set net.DisableBandwithThrottling 1 ?

floral crow Mar 2, 2021, 2:36 PM

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chrome bay What happens when you set `net.DisableBandwithThrottling 1` ?

How do I do that? on the commandline arguments?

chrome bay Mar 2, 2021, 2:37 PM

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yeah or via console

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It's not available in shipping

floral crow Mar 2, 2021, 2:39 PM

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Will try that

meager spade Mar 2, 2021, 2:40 PM

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@floral crow those are listen server specific

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if you are dedicated server, won't apply to you

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floral crow Mar 2, 2021, 2:48 PM

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Ohhhhh that would explain it all. Am I out of luck tweaking these for a dedicated server??

floral crow Mar 2, 2021, 2:59 PM

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meager spade

Wait where did you get those from? This is what I found in my GameNetworkManager

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Mine looks quite different. Currently on 4.26.1

meager spade Mar 2, 2021, 3:01 PM

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im on 4.25

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so maybe they did some changes :/

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strill says listen server

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for the bandwidth

floral crow Mar 2, 2021, 3:02 PM

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TotalNetBandwidth does say ListenServer though 😦

chrome bay Mar 2, 2021, 3:02 PM

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This is interesting:

ConfiguredInternetSpeed=
ConfiguredLanSpeed=

[/Script/Engine.NetDriver]
MaxClientRate=
MaxInternetClientRate=

These values were all raised to 100,000 bytes in 4.26```

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Looks like they made quite a lot of changes in 4.26

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Wonder how much of it is actually in the release notes

floral crow Mar 2, 2021, 3:07 PM

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Ok, everything seems to indicate that NetSpeed is never adjusted for anything other than ListenServers

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So now what, why am I seeing this hard 8kb per frame per connection limit even when running a dedicated server and 2 clients on my computer

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So theoretically bandwith would be constrained by my own computer performance, which is able to handle waaaaaay above those limits

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Hence my assumption that there's a hard limit. Where can I ask about being able to change it?

gusty slate Mar 2, 2021, 3:43 PM

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Hello 🙂
has anyone worked with Steam's Lobbies before? (the ISteamMatchmaking API)

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I am trying to confirm if LobbyDataUpdate_t after SetLobbyMemberData is only triggered for clients and not the lobby host. Because I'm receiving none on the host

grave notch Mar 2, 2021, 4:00 PM

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Maybe someone know how predictive multiplayer works in arpg games like path of exile, diablo3 etc, where your actions instant, but sometimes desync happens and your position reverted? Im not sure what about other action, like using skills, doing damage to enemies, etc, is it also instant (hard to tell, but feels like there is no latency for it), how you revert actions then and how usually predictive system supposed to work in that kind of games? Maybe there some guide for that, it can be for specifically ue4 or just some core information in general

winged badger Mar 2, 2021, 4:03 PM

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all prediction works pretty much the same

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movement for example

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local client saves his moves (can think of them as steps) locally and RPCs its movement to the server

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when the server update comes back confirming the client's position, client takes the servers position he just received, then reapplies all his steps made after the time the server update was sent

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and discards the older ones as they no longer have a purpose

kindred widget Mar 2, 2021, 4:08 PM

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It's worth noting that prediction can sometimes be very misleading. It gives you the impression that something is happening when it isn't. Saw that in Overwatch a few days ago. Went and ulted. Died immediately. Still had full ult charge. Ult never went off even though I saw it start on my screen.

grave notch Mar 2, 2021, 4:09 PM

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ye i understand that, but its very useful for non pvp games, where rare desyncs not critical, for like coop games

grave notch Mar 2, 2021, 4:16 PM

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winged badger when the server update comes back confirming the client's position, client takes...

@winged badger i dont understand it fully. What you mean by "then reapplies all his steps made after the time the server update was sent". Like server every n seconds send you your position and then what exactly you need to do? As i understand you store all your movement (last n seconds of them), so now you can compare it and what server also store, something like that?

winged badger Mar 2, 2021, 4:17 PM

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position server sent

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doesn't arrive instantly

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you moved since the server sent the position

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so need to reapply your steps again for the thing to look smooth

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otherwise you'd be jerked backwards by the server all the time

grave notch Mar 2, 2021, 4:24 PM

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so you mean when i get server data i should change my position to server position + all steps i did after server send position, but i dont know how much time past sines server start to send data to me and after i receive that data, it depends on ping etc

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if i understand it correctly

winged badger Mar 2, 2021, 4:24 PM

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thats why you sync network clocks

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and send timestamps with every update

grave notch Mar 2, 2021, 4:24 PM

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oh didnt know it exists

winged badger Mar 2, 2021, 4:25 PM

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typically

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you'll want to use server's GetWorldSeconds

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for network clock

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clients bounce acouple of RPCs to figure out the delta between their world clock and servers

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then mutate their own GetWorldSeconds by that delta to get the network time

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you can google syncing network clocks, its not too complicated, and its on the internet

grave notch Mar 2, 2021, 4:28 PM

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okay, thx, you helped me a lot, i finally understand that conception

sharp night Mar 2, 2021, 4:51 PM

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hi everyone. Im using client travel with seamless travel. it's working fine, since I can get the Player State values copied.
However, when entering the new map, the player cannot see other players that entered the same map after.
If I play starting from the specific map the players can see each other.
Im using C++ and play in standalone
does anyone knows what can be happening?

warped umbra Mar 2, 2021, 5:32 PM

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Hi all, please can anyone give me a tip on how i can archive server distribution structure for RTS games like Rise of Kingdoms or Infinity Kingdoms. How i can archive a seamless sever across the glob so players from different origins can play on same map an see each other.

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i have gone through https://www.alibabacloud.com/blog/global-gaming-servers-1-content-acceleration-and-architecture-comparison_594580?spm=a2c65.11461447.0.0.39093f7eU1ieqb but i don't know if i can archive that.

Alibaba Cloud Community

Global Gaming Servers (1): Content Acceleration and Architecture Co...

This article series introduces several architecture designs for global gaming servers and discusses the advantages and disadvantages of each approach.

hollow oasis Mar 2, 2021, 5:57 PM

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i created this in gamestate

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create chat information is getting from UI where i have text

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where i cast to Here to create child and added it to box

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but it only wheres if creator of text is Listen server

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client only makes child for him self

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how can i make this for every player

crystal crag Mar 2, 2021, 6:02 PM

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What is responsible for calling CreateChat?

hollow oasis Mar 2, 2021, 6:03 PM

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gamestate

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it creates for every player

crystal crag Mar 2, 2021, 6:07 PM

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Right... but CreateClient is just a RPC function. So where in the gamestate does this get called? In the BeginPlay? When a match starts?

hollow oasis Mar 2, 2021, 6:07 PM

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yeah

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on begin play

steel fox Mar 2, 2021, 6:14 PM

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What exactly should I keep in my game state? Game time, some variables and that's all?

And how I'm supposed to create in game scoreboards? Do I have to prepare everything in my gamestate and then pick the values from there or do I have to iterate through every Player State or what? If I do the latter then how I'm supposed to display variables updates(example a variables changes while the scoreboard is beign displayed)? Are repnotify a good way to achieve that or there are better/easier ways?

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Last thing: is Player State Client/Server only or both?

crystal crag Mar 2, 2021, 6:14 PM

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*If it automatically is being called upon begin play, why even have it as an RPC?

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I think your functions are being skipped on the clients since the functions are being marked as Execute on Server

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for all clients

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I could be wrong, but just a guess.

steel fox Mar 2, 2021, 6:17 PM

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@hollow oasis why not to create the widget directly inside the player HUD?

crystal crag Mar 2, 2021, 6:17 PM

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^

steel fox Mar 2, 2021, 6:17 PM

#

You create it at BeginPlay and you're sure that the player has it

crystal crag Mar 2, 2021, 6:18 PM

#

can you call RPC functions on the game state as a client? I know that every client has one, but I thought that was one way, from server to client.

#

I wouldn't think you would be able to, as there is only one game state on the server instance, which owns the game state actor

steel fox Mar 2, 2021, 6:19 PM

#

crystal crag can you call RPC functions on the game state as a client? I know that every clie...

Game state is only one, and if I'm not wrong it's located on server, so if I'm not wrong you have to find an alternative way to do so

crystal crag Mar 2, 2021, 6:20 PM

#

Yes, I do know for sure that there is only one game state on the server, so therefore, no client can actually own it because that would not make sense

#

So while you could use the game state to broadcast the messages sent from other players, you would need to use another route, such as maybe the player controller as one example, to send the message from the owning client to the server.

#

then of course from there, the server would use the game state to replicate the sent message to all other clients. The reason this works with a listen server is you have an instance that is acting as both the server and the player. So in that case, your server player really does own the game state.

hollow oasis Mar 2, 2021, 6:28 PM

#

i think is that client is not calling it like he should

#

it replicates from server to all client

#

but how can client tell server to create it

#

*call it

steep terrace Mar 2, 2021, 6:29 PM

#

Hey, I faced a problem with the multiplay. It is not smooth when I run the game and watch the IK motion of the Client in the Server side. For example, running. Hoping someone can help!

#

#

#

crystal crag Mar 2, 2021, 6:29 PM

#

I think the gist of what we are saying is that you probably should re-think placing your message HUD logic inside of the game state.

#

Move that somewhere else, such as the player HUD's begin play for example.

#

and just have the HUD create the message on the HUD's begin play

#

*create the message widget(s)

hollow oasis Mar 2, 2021, 6:30 PM

#

and call it from gamestate?

#

hud is only for player

crystal crag Mar 2, 2021, 6:30 PM

#

right

#

so if you are sending messages, then first you would need to call an RPC on an object that you actually own, such as the player controller. The player controller on the server would receive your sent message and pass it along to the game state, and then ultimately, you could send that message to all players via the game state. I'm not saying it is the best way, but that is the easiest to explain based off of what you are currently doing

hollow oasis Mar 2, 2021, 6:33 PM

#

got it

#

i made almost same thing with killfeed

#

so i will check if it works

crystal crag Mar 2, 2021, 6:34 PM

#

ok

hollow oasis Mar 2, 2021, 6:43 PM

#

YEY it works

#

@crystal crag Thanks for help 😄

crystal crag Mar 2, 2021, 6:43 PM

#

Glad I was able to help 🙂

#

Not sure if you are using a common base game mode class, but if you are, you could pass the message from Player Controller to it, and then it would determine whether or not clients were currently allowed to send messages. If not, then have the player controller send back an error code that the message could not be sent. If the message is allowed to be sent, then the game mode could pass on the message as you already are doing from PC to GS.

#

Not required obviously, but I only mention that because game mode is supposed to control the rules of instance.

hollow oasis Mar 2, 2021, 6:46 PM

#

ok got it

crystal crag Mar 2, 2021, 7:17 PM

#

When I am starting up a client build, the world loads up and everything looks fine. But after about 20 seconds or so, the map reloads, and in the output I am getting a UNetworkConnection TIMEOUT exception. So I loaded up the DebugClient build, and I can see UNetworkConnection::Tick(float Delta) being called. Why is it trying to establish a connection to the null subsystem?

#

I haven't told it to do anything with the null subsystem yet

#

Well, that's not true. I did initialize the null subsystem, but the call stack here is trying to call UNetConnection::Tick within the world tick, and I haven't tried even querying the NULL subsystem yet.

#

#

This is what I get when I just press F5 to start debugging the game

silent valley Mar 2, 2021, 7:32 PM

#

Does anyone know if RepGraph takes actor bounds into account when Spatializing the actor to nodes?

hasty current Mar 2, 2021, 7:42 PM

#

Hello ladies and gentlemen. I wonder how to divide players into teams. I suspect I should do it in the game state, am I right?

desert scarab Mar 2, 2021, 7:45 PM

#

Relative newbie here, but I would assume the game state is a good place. There's no secrecy about who is on what team, and should be useful in general game logic

#

It would also be a good place to have event dispatchers for when someone changes teams (if possible in a match) that a client function can broadcast to

hasty current Mar 2, 2021, 7:49 PM

#

Event dispatchers seem like a great idea, thank you @desert scarab :D

desert scarab Mar 2, 2021, 7:50 PM

#

You're welcome!

meager spade Mar 2, 2021, 8:04 PM

#

@silent valley i wouldn't think so

#

iirc its just actor location

silent valley Mar 2, 2021, 8:08 PM

#

😬 ok..

#

I wonder if an actor can be in multiple cells

#

couldn't see anything re: bounds when I looked thru the code

#

but there is a StartX/Y and EndX/Y members for each FActorCellInfo - just can't see how they get setup 😅

#

might be via the CullDistance.. this might work

#

don't mind me, just talking to myself 🙂

grave notch Mar 2, 2021, 8:28 PM

#

I use AddMovementInput method to let unreal sync movements of characters. It works perfectly on all clients but server, on server other character movements look like low fps. Why is that and can i fix it?

limber gyro Mar 2, 2021, 8:31 PM

#

if i spawn an object through the player (in this case a decal actor) the player should be its owner correct?

bitter oriole Mar 2, 2021, 8:32 PM

#

Define "through"

limber gyro Mar 2, 2021, 8:32 PM

#

an RPC

bitter oriole Mar 2, 2021, 8:32 PM

#

Then no

#

Assuming the spawn occurs on server, the owner is part of the parameters

#

Dunno what it defaults to

limber gyro Mar 2, 2021, 8:33 PM

#

i am calling an RPC throug the player and then it spawns in the server and gets replicated back

#

ummmm so i have to set the owner manualy then

plain turtle Mar 2, 2021, 8:41 PM

#

Hello Guys! I have a situation, I am getting unresolved externals when I try to use Set Function SessionSettings.Set(SETTING_GAMEMODE,FString("TeamDeathMatch")); from the FOnlineSessionSettings. Aready Included the #include "OnlineSessionSettings.h"
#include "OnlineSubsystemTypes.h" any suggestions? Thank You!

plain turtle Mar 2, 2021, 9:19 PM

#

Solved: changed it to this query.Set(SETTING_GAMEMODE, FString("TeamDeathMatch"), EOnlineComparisonOp::Equals);

blazing cloak Mar 2, 2021, 9:48 PM

#

Hello, I have a small question. On PostLogin I spawn and posses pawn with incoming player controller. Then I try to setup custom camera (camera is custom camera BP that is child actor object in pawn) in controller BP (or in pawn bluperint, but for every pawn i get server controller, and camera is only setup in listen server instance.

hasty yoke Mar 2, 2021, 10:07 PM

#

hey guys we're trying to execute a console command on the server on the press of an UMG button (either the client's or the listen server's button) and nothing happens. using the command line to execute the command on the server works otherwise. does anyone have any idea what we're missing? from the widget, on the click of the button, we're calling an execute on server event that iterates over all clients and calls a multicast event executing that console command

kindred widget Mar 2, 2021, 10:15 PM

#

@hasty yoke Where is the Server event? Is it inside of the Widget?

hasty yoke Mar 2, 2021, 10:21 PM

#

Hey authaer! thanks for helping. this is our button widget:

#

dont mind the event called RPC if it isnt technically an RPC, we're still a bit lost

#

the event Restart Level RPC is inside of our controller, it is executed on the server

#

#

so far this doesnt work, but we got something very similar to work at some point, but ONLY when the client clicks on the button

kindred widget Mar 2, 2021, 10:32 PM

#

@hasty yoke Well, at the moment you're telling the button to get the local controller, and call a client event on that controller that I'm not even sure what that event does. It's not in the second picture. What actor is that second picture in?

hasty yoke Mar 2, 2021, 10:33 PM

#

second picture is the player controller

kindred widget Mar 2, 2021, 10:34 PM

#

What is the RPC currently? In the widget image it's a client call, in the second it's a server RPC.

hasty yoke Mar 2, 2021, 10:35 PM

#

it's the server rpc. sorry, my teammate changed it back to an event replicated to server

kindred widget Mar 2, 2021, 10:37 PM

#

Hmm. That technically should work. But isn't ServerTravel meant to be called on the server? I'm fairly certain you just need to move the Console command to the Restart Level RPC in place of the stuff that's on there now.

#

Unfamiliar with it. Single world in my game. But I was under the impression it was only meant to run on server.

hasty yoke Mar 2, 2021, 10:37 PM

#

it is indeed we think, since entering it in the console line only works when writing it on the server

#

so you're saying that we should execute the command after restart level rpc and nothing else

kindred widget Mar 2, 2021, 10:39 PM

#

Correct. And also it will only work in standalone or packaged versions. So PIE sessions it shouldn't work with. Not sure about your testing environment.

hasty yoke Mar 2, 2021, 10:42 PM

#

oh okokokok we're gonna try packaging it. that's really strange because even when we execute the command in the command line, we're not in the packaged version, we're just playing straight in the editor and it works

#

would the way we call that RPC in the widget the good way? i feel like widgets have particularities and we are not confident that's how it should work. Only clients own the widget and the only thing they can do is call a server RPC like we're doing right?

kindred widget Mar 2, 2021, 10:45 PM

#

Standalone should work fine too. And disable RunUnderOneProcess

#

The RPC should work. Since the RPC is done through the player controller.

hasty yoke Mar 2, 2021, 11:02 PM

#

thank you 😄

hasty yoke Mar 2, 2021, 11:24 PM

#

Man, it's really not working even in a build

#

thing is i'm trying to do the most basic thing at this point, which is just a print

#

#

and somehow it only prints when the client presses the button. when the server presses it, nothing happens

kindred widget Mar 2, 2021, 11:30 PM

#

Hmm. Not really sure why that would happen. Server events should still run on the server even if they're server started.

pearl hearth Mar 2, 2021, 11:41 PM

#

Hello guys, good night, I want to ask you something. I watched doing Steam multiplayer. It used to work before but no longer works. It works painfully on the same computer without Steam, but it doesn't work when I open steam. I've been dealing with it for a while, neither on another computer nor on the same computer.

plain torrent Mar 3, 2021, 12:02 AM

#

We're working with dedicated servers for the first time, once I push this build to our host, will I have to re-build for the server each time someone on the team makes logic or asset changes?

#

Think I may have the answer if anyone with more experience can sanity check! I'm going to be hosting on DigitalOcean, from what I understand I'm going to be building it as a Linux app, setting up a repo and deploying the server to DigitalOcean VIA GIT to keep it synced?..

#

Scratch that again.. Can I use the same Server Instance that's hosting our Perforce SVN to run the dedicated server to test our multiplayer? Really sorry for spamming!

lost inlet Mar 3, 2021, 2:22 AM

#

perforce and SVN are different source control technologies

#

but yes, you can as long as there's enough CPU overhead for it

steep terrace Mar 3, 2021, 2:40 AM

#

steep terrace Hey, I faced a problem with the multiplay. It is not smooth when I run the game ...

Have anyone can help ?

crystal crag Mar 3, 2021, 2:57 AM

#

Can someone please tell me if it is normal behavior for a game client, targeting the NULL subsystem, would automatically try to connect to a socket? I keep getting UNetConnection::Tick() TIMED_OUT error messages and the level restarts

#

#

It says the state is "Connecting"... but I haven't told the client to join or even search for a session. The entry map is just being loaded upon start up.

#

So... why is it trying to connect to anything?

#

@meager spade do you have any idea?

#

[2021.03.03-03.07.02:501][  0]LogLoad: Game class is 'BP_RaevinGameMode_Menu_C'
[2021.03.03-03.07.02:505][  0]LogWorld: Bringing World /Game/Maps/RaevinEntry.RaevinEntry up for play (max tick rate 0) at 2021.03.02-22.07.02
[2021.03.03-03.07.02:506][  0]LogWorld: Bringing up level for play took: 0.003340
[2021.03.03-03.07.02:510][  0]LogTemp: Warning: ARaevinPlayerController_Menu::ClientSetHUD_Implementation()
[2021.03.03-03.07.02:512][  0]LogTemp: Warning: ARaevinPlayerController_Menu::BeginPlay()
[2021.03.03-03.07.02:513][  0]LogLoad: Took 0.082853 seconds to LoadMap(/Game/Maps/RaevinEntry)
[2021.03.03-03.07.02:513][  0]LogTemp: Warning: URaevinGameInstance::OnStart()
[2021.03.03-03.07.02:513][  0]LogTemp: Warning: URaevinGameInstance::StartGameInstance()
[2021.03.03-03.07.02:595][  0]LogInit: Display: Engine is initialized. Leaving FEngineLoop::Init()
[2021.03.03-03.07.02:595][  0]LogLoad: (Engine Initialization) Total time: 9.37 seconds
[2021.03.03-03.07.02:601][  0]LogInit: WinSock: Socket queue. Rx: 32768 (config 32768) Tx: 32768 (config 32768)
[2021.03.03-03.07.02:601][  0]LogNet: Created socket for bind address: 0.0.0.0 on port 0
[2021.03.03-03.07.02:601][  0]PacketHandlerLog: Loaded PacketHandler component: Engine.EngineHandlerComponentFactory (StatelessConnectHandlerComponent)
[2021.03.03-03.07.02:602][  0]LogNet: Game client on port 7777, rate 100000

#

and then finally:

#

well, it won't let me post the final piece unless I turn it into a text file

#

📎 message.txt

jolly crag Mar 3, 2021, 3:30 AM

#

hello, im trying to correct a ugly transition into join session...the host player always loads fine but the other 2 players join their view ports show world origin 0.0.0 THEN it spawns a pawn for them. is there something I need to add a check to somewhere to fix that?

#

i would honestly have them stare at a black screen rather than seeing a view from under my world for 2 secs....it just looks horrible

#

please @ me if you know of a solution

vivid prawn Mar 3, 2021, 4:17 AM

#

Hey guys, does anyone know how to prevent Interface function from overriding the previous action?

#

I have set left mouse key to call a interface function, and that function has a delay of 1 second then printing on screen the number of click, If i continuously press left click, it only shows few of them

#

#

#

what I assume is that when i click multiple times, it removes the previous action/call and reset/override it

vivid prawn Mar 3, 2021, 4:49 AM

#

I have checked it documentation in unreal bp or cpp, but didn't find anything that pointing that
https://docs.unrealengine.com/en-US/ProgrammingAndScripting/Blueprints/BP_HowTo/Interfaces/index.html
https://docs.unrealengine.com/en-US/ProgrammingAndScripting/GameplayArchitecture/Interfaces/index.html

Using Interfaces

Sample of using Blueprint Interfaces to communicate with multiple Blueprints at once.

Interfaces

Reference to creating and implementing interfaces.

vivid prawn Mar 3, 2021, 5:27 AM

#

jolly crag hello, im trying to correct a ugly transition into join session...the host playe...

@jolly crag collect the spawn point on BeginPlay and spawn the players on OnPostLogin
the reason that happen to you is because you are not spawning them the moment they join the map, so they spawn at 0,0,0

worthy knot Mar 3, 2021, 6:52 AM

#

Does Epic offer account services like playstation does? For example if im a player and i want to purchase skins inside my game then all the info of the skin purchase and then it actually showing up in my game, in game purchases etc?

bitter oriole Mar 3, 2021, 7:02 AM

#

Epic has account services (EOS) but I don't believe they include microtransactions yet

worthy knot Mar 3, 2021, 7:09 AM

#

@bitter oriole So Epic Games' Fortnite doesnt use Epic account services ?

sick creek Mar 3, 2021, 7:10 AM

#

@worthy knot thats probably a feature they have private or havent released on EOS yet

#

there are many alternatives however that would work but i dont think EOS is one of them

lost inlet Mar 3, 2021, 7:13 AM

#

the store is only supported on EGS, for add-on purchases on PSN you'd likely want to use the platform native API for that

bitter oriole Mar 3, 2021, 7:15 AM

#

@worthy knot EOS is built on what Epic has for Fortnite

#

And yeah, like sswires said - usually you just use whatever your store provides

#

When you're on Steam you'd use Steamworks

lost inlet Mar 3, 2021, 7:17 AM

#

though IOnlinePurchase isn't implemented in the Steam OSS

#

that's what you use on certain platforms for getting receipts for transactions

#

we did something custom with DLC on Steam

bitter oriole Mar 3, 2021, 7:18 AM

#

The Steam OSS does next to nothing tbh, Steamworks has the feature

blazing cloak Mar 3, 2021, 8:24 AM

#

Hello. I'm having problems setting up custom camera in FPS multiplayer. I attached camera as child actor, and on posses in pawn i try to setup, but only get camera on listen server instance

bitter oriole Mar 3, 2021, 8:25 AM

#

Pawns have their own camera, there is no need to use another one - and if you do it should be a component of the pawn, not another actor

#

(child actors are not great)

blazing cloak Mar 3, 2021, 8:41 AM

#

I tried with my camera actor, couse I need template sequence animations for some custom camera animations. I can't seem to setup template sequence with my fps pawn.

twilit sage Mar 3, 2021, 8:50 AM

#

Hey guys does anyone know how to resolve the yellow warning of no owning connection (AI character , child class of main character) will not process function .. the AI is spawned by game mode and I've set the owner to getController.

worthy knot Mar 3, 2021, 8:51 AM

#

So steamworks has some API that allows microtransactions?

bitter oriole Mar 3, 2021, 8:53 AM

#

Most stores do

#

Though on PC Steam might be the only one

worthy knot Mar 3, 2021, 8:57 AM

#

What do you say which ones better, EOS or Steamworks?

bitter oriole Mar 3, 2021, 9:00 AM

#

There really isn't an answer to that

#

Steamworks is Steam exclusive, EOS isn't exclusive but kind of EGS related anyway, and Steamworks does a lot more stuff

worthy knot Mar 3, 2021, 9:05 AM

#

So if i sell my title on epic store then it obviously wont be able to use steamworks right?

bitter oriole Mar 3, 2021, 9:05 AM

#

Correct

wintry shuttle Mar 3, 2021, 9:14 AM

#

Steam takes like 30-40% of your sale though for using their platform, I believe EOS is free if your using Unreal Engine(or much lower percentage)

bitter oriole Mar 3, 2021, 9:26 AM

#

EOS is not a store

#

Steam takes 20 to 30%, not 30-40

#

And EGS takes a 12% cut

#

Unreal Engine is free when shipped through EGS, IIRC, but then it's also free until you make an absurd amount of money

blazing cloak Mar 3, 2021, 11:49 AM

#

What is best practice, where to put inventory. In Player State or in player controller?

kindred widget Mar 3, 2021, 11:51 AM

#

There's not really a best practice. It just depends on your game. For instance, mine is in a component that is added to many different actors, including the player's pawn. If you don't plan on losing inventory on death, then either PlayerState or PlayerController could work. Which one depends on whether or not you want other players to see other's inventories. If you want them private, put it on the controller, if you want them public put it on the PlayerState.

bitter oriole Mar 3, 2021, 12:11 PM

#

@blazing cloak Does the inventory need to be visible by other players in some way ?

#

Yeah, already answered I guess

grizzled stirrup Mar 3, 2021, 1:09 PM

#

Why is SetReplicateMovement even a function if it just calls SetReplicatingMovement ?

kindred widget Mar 3, 2021, 1:22 PM

#

@grizzled stirrup It's overridable. ACharacter does the default, but also uses it to do some stuff on the authority version.

#

void ACharacter::SetReplicateMovement(bool bInReplicateMovement)
{
    Super::SetReplicateMovement(bInReplicateMovement);

    if (CharacterMovement != nullptr && GetLocalRole() == ROLE_Authority)
    {
        // Set prediction data time stamp to current time to stop extrapolating
        // from time bReplicateMovement was turned off to when it was turned on again
        FNetworkPredictionData_Server* NetworkPrediction = CharacterMovement->HasPredictionData_Server() ? CharacterMovement->GetPredictionData_Server() : nullptr;

        if (NetworkPrediction != nullptr)
        {
            NetworkPrediction->ServerTimeStamp = GetWorld()->GetTimeSeconds();
        }
    }
}```

grizzled stirrup Mar 3, 2021, 1:41 PM

#

Ah that makes sense thanks!

jolly crag Mar 3, 2021, 1:48 PM

#

@vivid prawn thank you bear!!!!

brazen sluice Mar 3, 2021, 3:21 PM

#

Can replicating a significant amount of data (say a few hundreds bytes) cause stutter in itself ?

forest swift Mar 3, 2021, 3:36 PM

#

brazen sluice Can replicating a significant amount of data (say a few hundreds bytes) cause st...

first thing to do is make it unreliable

brazen sluice Mar 3, 2021, 3:36 PM

#

but...wouldnt that cause it to be.... unreliable..? XD

forest swift Mar 3, 2021, 3:37 PM

#

no .reliable means that gameplay needs this data ASAP or otherwise it will not behave correctly

brazen sluice Mar 3, 2021, 3:37 PM

#

AH

#

good to know

forest swift Mar 3, 2021, 3:37 PM

#

for example player camera aim is reliable

#

but player chat is unreliable

brazen sluice Mar 3, 2021, 3:37 PM

#

Right

#

here it was world streaming

#

Which I guess is not that necessary

#

As-in can be delayed

forest swift Mar 3, 2021, 3:38 PM

#

depends on intended game play

brazen sluice Mar 3, 2021, 3:38 PM

#

thanks for the tip

#

it does help

#

I aslo have this weird thing where there's a long delay before any actor is able to replicate, only the world does Im not sure why

#

And after the delay even if the world still streams, any other actor is fine

#

#

The game only replicate a few at the begining then stop

forest swift Mar 3, 2021, 3:48 PM

#

brazen sluice

are these foliages generated?

#

then replicated?

brazen sluice Mar 3, 2021, 3:48 PM

#

Yes,
The only explaination I can see is that they are too many and the game trioes to replicate everything at once

forest swift Mar 3, 2021, 3:48 PM

#

you should not do that

brazen sluice Mar 3, 2021, 3:49 PM

#

They're replicated because some "spawned" object can be animated and stuff and needs replicating the animation

forest swift Mar 3, 2021, 3:49 PM

#

you should generate a random seed in game server then replicate that seed to all of the clients then each client can generate their own foliage

brazen sluice Mar 3, 2021, 3:50 PM

#

I mean I could use a flag to say whether or not the particular actors needs replication but that would only be avoiding the issue I suppose?

forest swift Mar 3, 2021, 3:51 PM

#

maybe you should have a foliage manager that just gets a seed and generates foliage and gives each of them an index

brazen sluice Mar 3, 2021, 3:51 PM

#

I mean it's not a problem of folliage, this actor could be a door

#

They're replicated because sometime they get events on them

forest swift Mar 3, 2021, 3:52 PM

#

brazen sluice I mean it's not a problem of folliage, this actor could be a door

then you should work on network relevancy

#

and only repliacte properties that need to be replicated

#

like only property in a door that needs to be replicated is a bool

#

or an angle

brazen sluice Mar 3, 2021, 3:53 PM

#

Well not even actually, right now it's only so that my even open/close gets replciated with proper relevancy

#

(or any event needed on that actor)

#

Is there a way to make those actor's replication "Unreliable" as well may be?

forest swift Mar 3, 2021, 3:58 PM

#

AActor::IsNetRelevantFor()

#

is a possible solution

#

https://docs.unrealengine.com/en-US/API/Runtime/Engine/GameFramework/AActor/IsNetRelevantFor/index.html

AActor::IsNetRelevantFor

Checks to see if this actor is relevant for a specific network connection

forest swift Mar 3, 2021, 3:59 PM

#

brazen sluice Is there a way to make those actor's replication "Unreliable" as well may be?

net priority property

ember needle Mar 3, 2021, 4:06 PM

#

stupid question: in BP does a variable get replicated if set on server but equal to its previous value?

peak notch Mar 3, 2021, 4:06 PM

#

when i click login on PC(editor) it goes to the LobbyMap but when i touch LoginButton from the mobile it outputs me this CSharpWarning: Script Msg: Sessions not supported by Online Subsystem any idea as to why?

brazen sluice Mar 3, 2021, 4:07 PM

#

@ember needle AFAIK it's not

ember needle Mar 3, 2021, 4:07 PM

#

that's what I thought but I'm getting the replication event every time it's set, even though it doesn't change

#

in this specifics, it's an integer

#

(on rep notify, that is)

brazen sluice Mar 3, 2021, 4:10 PM

#

did you try to log it, is the value always the smae?

#

@forest swift The number of actors was not the issue in the end, I removed all ffolliages and still have the issue

forest swift Mar 3, 2021, 4:16 PM

#

brazen sluice <@!139663818333618176> The number of actors was not the issue in the end, I remo...

so how you know its from replication?

brazen sluice Mar 3, 2021, 4:16 PM

#

Because solo works fine

forest swift Mar 3, 2021, 4:17 PM

#

peak notch when i click login on PC(editor) it goes to the **LobbyMap** but when i touch **...

#epic-online-services

#

if you are using epic online subsystem

#

but they'll probably help with other subsystems too

ember needle Mar 3, 2021, 4:17 PM

#

brazen sluice did you try to log it, is the value always the smae?

I set it in a loop on the server, always to the same value. 🙂

#

ok well, thanks

forest swift Mar 3, 2021, 4:18 PM

#

brazen sluice Because solo works fine

use network profiler to see what is causing it

forest swift Mar 3, 2021, 4:18 PM

#

ember needle stupid question: in BP does a variable get replicated if set on server but equal...

no

brazen sluice Mar 3, 2021, 4:18 PM

#

forest swift Mar 3, 2021, 4:18 PM

#

replication checks the changes not sets

ember needle Mar 3, 2021, 4:19 PM

#

well it does, iraj 🙂

brazen sluice Mar 3, 2021, 4:19 PM

#

Someething seems to crazy cloag the network? or is it just normal the call count is increasing

forest swift Mar 3, 2021, 4:19 PM

#

ember needle well it does, iraj 🙂

it should not

ember needle Mar 3, 2021, 4:19 PM

#

ok then maybe I messed up, because that was my take too. will dive more.

#

thanks

forest swift Mar 3, 2021, 4:20 PM

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ember needle thanks

If you are setting it using an event that might be the problem

forest swift Mar 3, 2021, 4:20 PM

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brazen sluice Someething seems to crazy cloag the network? or is it just normal the call count...

use network profiler

brazen sluice Mar 3, 2021, 4:21 PM

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Where do I find it sorry ?

forest swift Mar 3, 2021, 4:21 PM

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brazen sluice Where do I find it sorry ?

https://docs.unrealengine.com/en-US/InteractiveExperiences/Networking/NetworkProfiler/index.html

Network Profiler

Tool for displaying network traffic and performance information captured at runtime.

#

btw be sure to profile on both clients and server

brazen sluice Mar 3, 2021, 4:21 PM

#

thanks you will try it !!

forest swift Mar 3, 2021, 4:22 PM

#

(you probably need to set a command or something to use it be sure to make it work on both server and clients)

#

it will basically tell you how much data each actor is sending

brazen sluice Mar 3, 2021, 4:22 PM

#

Can I do it on the standalone game rather than in viewport?

forest swift Mar 3, 2021, 4:23 PM

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brazen sluice Can I do it on the standalone game rather than in viewport?

Haven't tried it in any way other than dedicated server

brazen sluice Mar 3, 2021, 4:23 PM

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Because the game just crashes on me in the viewport lol

#

let me try

peak notch Mar 3, 2021, 4:24 PM

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forest swift if you are using epic online subsystem

i am using GooglePlay Subsystem ofcourse cause it's on andorid

brazen sluice Mar 3, 2021, 4:26 PM

#

forest swift Mar 3, 2021, 4:26 PM

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peak notch i am using GooglePlay Subsystem ofcourse cause it's on andorid

google play subsystem does not support sessions

brazen sluice Mar 3, 2021, 4:26 PM

#

I m guessing this is not a very good shape 😂😂

forest swift Mar 3, 2021, 4:26 PM

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forest swift google play subsystem does not support sessions

90% possible

forest swift Mar 3, 2021, 4:28 PM

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brazen sluice I m guessing this is not a very good shape 😂😂

try netprofiling shooter game example and use that as your optimization goal

brazen sluice Mar 3, 2021, 4:28 PM

#

I mean it's never gonna be that good Im streaming the whole level but I get your point

#

I think there's a bug tho

#

Not an optimisation pb

forest swift Mar 3, 2021, 4:28 PM

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yeah see what properties are causing it

brazen sluice Mar 3, 2021, 4:28 PM

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But Im having trouble seeing where bc my actor list is empty in the profiler

#

forest swift Mar 3, 2021, 4:29 PM

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brazen sluice But Im having trouble seeing where bc my actor list is empty in the profiler

I think you'll need to profile server

#

send me your netprofile log

brazen sluice Mar 3, 2021, 4:29 PM

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Ah that's what you were saying about the special command

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To trigger the dedicated server's profiling as well

forest swift Mar 3, 2021, 4:30 PM

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brazen sluice To trigger the dedicated server's profiling as well

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and use a separate process server

brazen sluice Mar 3, 2021, 4:36 PM

#

#

#

They're both initial only, but commonChunkData (of course the big one) has 300k replications instead o 188 WTF ?!

#

no wonder it doesnt work...

#

How could this happen ?

peak notch Mar 3, 2021, 4:44 PM

#

forest swift google play subsystem does not support sessions

So how can one make multiplayer for android?

chrome bay Mar 3, 2021, 4:44 PM

#

@brazen sluice relevancy/dormancy?

forest swift Mar 3, 2021, 4:44 PM

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peak notch So how can one make multiplayer for android?

epic online services

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#epic-online-services

chrome bay Mar 3, 2021, 4:45 PM

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Maybe it's too large for the buffer so it keeps trying to resend it

brazen sluice Mar 3, 2021, 4:45 PM

#

Relevancy is distance based
It's set to InitialOnly as well,
And the replication seems to work, since I see them

#

Actually now that you mention it there were a few broken chunks

#

You could be onto something

#

A buffer too large clogging it all

#

Let me try to increase the limit

chrome bay Mar 3, 2021, 4:46 PM

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What engine version are you in?

brazen sluice Mar 3, 2021, 4:46 PM

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4.25

#

I set net.MaxRepArraySize=8192

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let see

chrome bay Mar 3, 2021, 4:47 PM

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Yeah apparently that's in 4.25 and below (deprecated in 4.26)

#

Do you see anything like “Received a partial bunch exceeding max allowed size” or “Attempted to send bunch exceeding max allowed size" in the log?

brazen sluice Mar 3, 2021, 4:47 PM

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What's the alternative post 4.26 ?

#

I play in standalone I have no logs

chrome bay Mar 3, 2021, 4:47 PM

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In version 4.26, these values have been deprecated and are no longer used, as the engine now uses the previous values’ maximums.

#

They also bumped MaxClientRate=
MaxInternetClientRate= to 100,000 in 4.26 too apparently

brazen sluice Mar 3, 2021, 4:48 PM

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Oh interesting

chrome bay Mar 3, 2021, 4:48 PM

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Which is a mega increase

brazen sluice Mar 3, 2021, 4:48 PM

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Wow

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I did that manually myself

chrome bay Mar 3, 2021, 4:48 PM

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Some more info: When sending or receiving a bunch, UChannel will check its size against NetMaxConstructedPartialBunchSizeBytes. If your bunches are too large, you may want to adjust the net.MaxConstructedPartialBunchSizeBytes CVar. It’s worth noting that this value is already quite large, so increasing it is not recommended unless completely necessary.

#

Maybe also look at net.PartialBunchReliableThreshold

#

But yeh my guess is it's too large, so it keeps trying to resend

brazen sluice Mar 3, 2021, 4:50 PM

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if I set the limit to 99999

#

The computer copletely chokes and craash so

chrome bay Mar 3, 2021, 4:50 PM

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haha

brazen sluice Mar 3, 2021, 4:51 PM

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Time to do some logging I suppose

chrome bay Mar 3, 2021, 4:51 PM

#

yeah

brazen sluice Mar 3, 2021, 4:55 PM

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@chrome bay Value barely ever goes above 3000 and never above 4000 that's not the issue I suppose

desert scarab Mar 3, 2021, 4:59 PM

#

Hopefully easy question: If a server spawns an Actor, then sends a pointer to it along a (reliable) Client RPC in the same tick, is it ever possible for it to fail because the actor hasn't yet been replicated on the client?

forest flint Mar 3, 2021, 5:02 PM

#

desert scarab Hopefully easy question: If a server spawns an Actor, then sends a pointer to it...

yes

desert scarab Mar 3, 2021, 5:03 PM

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That's unfortunate, but I guess it can be worked around

brazen sluice Mar 3, 2021, 5:04 PM

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I remove the replication and now it works... the question is.... WHY DOES IT WORK IF IM NOT REPLICATING 😂

forest flint Mar 3, 2021, 5:11 PM

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desert scarab That's unfortunate, but I guess it can be worked around

you can use RepNotify

desert scarab Mar 3, 2021, 5:12 PM

#

Hmmm, I'm not sure how to repnotify on actor spawn

brazen sluice Mar 3, 2021, 5:13 PM

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the repnotify willl be called if the value is different than the default one in the consytructor

desert scarab Mar 3, 2021, 5:13 PM

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Is there some kind of method on Actor that is called after being spawned on the client?

forest flint Mar 3, 2021, 5:14 PM

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if an actor is replicated, then begin play will be called on each client

desert scarab Mar 3, 2021, 5:37 PM

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And there you can check if the actor was replicated from the server by role

#

Okay, that makes sense

sharp night Mar 3, 2021, 5:43 PM

#

hello everyone. what is the definitive way to replicate a skeletal mesh change? like changing a player mesh.
i tried to turn on component replication, and I use a RPC Server, called from the playercontroller
the skeletal mesh change doesnt replicate to the other players.
i've read a ton of articles and didnt find the proper way to do it

brazen sluice Mar 3, 2021, 5:45 PM

#

Is it possible to make my replication Server -> Client only ?

#

I think my issue comes from the fact that the client can freely set the value itself but then triggers some sort of check with the servers

brazen sluice Mar 3, 2021, 6:24 PM

#

what could cause a replication to fail other than max array size ?

#

If I enable replication on my value I cannot have anything else on the network , no replication no RPC

#

Going back to Jambax's theory about a failing rep that cloags the network on retries

kindred widget Mar 3, 2021, 6:44 PM

#

sharp night hello everyone. what is the definitive way to replicate a skeletal mesh change? ...

The easiest way is to set a replicated pointer to the asset type with a rep notify. Rpc to server with the desired asset of the type, make server set the variable, in the rep notify, set the skeletal mesh component to use that mesh.

sharp night Mar 3, 2021, 6:52 PM

#

right ill try that

brazen sluice Mar 3, 2021, 6:52 PM

#

Is there a better way to make a value that only replicate once than COND_InitialOnly

#

Because I change this value constantly on thousands of actor and I think the server constantly check with clients if it wants it, and when doing so, still check the value (which is couple of kb sometime)

#

And everything crumbles

peak notch Mar 3, 2021, 7:00 PM

#

peak notch when i click login on PC(editor) it goes to the **LobbyMap** but when i touch **...

Can anyone help me with this i cant use sessions with GooglePlay Subsystem is there a way to make a multiplayer for android and pls dont tell me to post in another channel since i did and i got asked to post here again!!

#

How can one make a multiplayer system for android 🥺👉👈

kindred widget Mar 3, 2021, 7:06 PM

#

brazen sluice Because I change this value constantly on thousands of actor and I think the ser...

AFAIK, only the server checks replication stuff. Client only gets it when server changes it and it gets replicated.

brazen sluice Mar 3, 2021, 7:07 PM

#

yeah but it's killing everything else :/

kindred widget Mar 3, 2021, 7:08 PM

#

It should only affect server cpu usage though.

brazen sluice Mar 3, 2021, 7:09 PM

#

Well nothing replicates anymore if I enable that particular value to be replicated (with Condition inital only)

#

and it doesnt have any replication hook attached

kindred widget Mar 3, 2021, 7:12 PM

#

I wonder if reliable rpc called one time when client connects would be better for larger data bursts. Not at home to test. Would be curious to know the difference.

brazen sluice Mar 3, 2021, 7:13 PM

#

Yes taht's what I do except it misses the initial data

#

If the server generate them before the client is there

#

Hence why I want to replciate once

kindred widget Mar 3, 2021, 7:14 PM

#

But I mean server still has the data. It could be sent though new connection events in game mode. New clients would still get it.

brazen sluice Mar 3, 2021, 7:15 PM

#

It's an infinite world, sending world data to players only when they are around that part of the world

#

So on edit, the world sends data again via RPC

#

But then the initial set are sent upon replication

#

#

What does this waste column mean ?

kindred widget Mar 3, 2021, 7:21 PM

#

Looks like replication checking vs actual replication.

jolly crag Mar 3, 2021, 7:24 PM

#

Ive gotten stutter from folliage set to incorrect lightmap resolution scales causing me to go over budget if that helps you in any way..

#

It was never inherently noticeable until I got in range of the foliage in large enough clusters

brazen sluice Mar 3, 2021, 7:47 PM

#

What limits exist on replication ? is there anything like byte limit? Timeouts? anything

#

Other than array size?

bitter oriole Mar 3, 2021, 7:48 PM

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The main limits are practical, large replicated data will simply prevent other things from replicating

#

if you have to ask, you probably shouldn't use replication

brazen sluice Mar 3, 2021, 7:49 PM

#

But here they prevent things eeven when the world has finished loading (aside from missing level chunks), Jambax proposed that some of the chunks gets stuck and retries in loop

#

But what would cause them to fail is the mystery

#

I dont see any other alternative, of course if I was sending new data constantly I understand nothing can work, but here it's after the data is loaded on the client, that still nothing can happen

#

Feels like net.MaxRepArraySize=16384 is not working or is getting ignored tbh

#

But it's set in the console

#

So may be I thought there was something else to setup

#

Setting net.MaxRepArrayMemory=1024000 helps,
but I still have a lot of actor not replicating at all

waxen quartz Mar 3, 2021, 8:29 PM

#

if a variable is rarely modified is it better to update the value via reliable RPC or just make it replicated?

bitter oriole Mar 3, 2021, 8:37 PM

#

Depends which way

#

For server to client, replication, no matter what

#

For client to server, RPC

pearl pollen Mar 3, 2021, 8:41 PM

#

I have a big problem :< . I have an actor component on my player character that gathers some data and then uses it to tell the character which attacks to use. I have a combo reset timer that brings everything back to default state once the player doesn't attack for a certain period of time. Everything is fine and dandy in a 1-player "Play as Client" scenario. But when it goes off in a 2-player "Play as Client" scenario, the object that shoud reset only its combat data somehow reverts to its state from the "BeginPlay" method invocation time. Every pointer it collected since gets nulled out. Every other data that was inside it (regardless of whether it's an UPROPERTY or not) gets wiped. I checked and the component doesn't seem to be corrupted from the blueprint's side of view. Does anybody know what could cause such a weird behaviour?

#

As long as the timer doesn't actually execute, the component works as intended

waxen quartz Mar 3, 2021, 8:48 PM

#

bitter oriole For server to client, replication, no matter what

alright thanks

pearl hearth Mar 3, 2021, 8:55 PM

#

Hello Guys.I working on steam multiplayer.I when close steam system work but I when open steam don`t work For Each Loop

peak notch Mar 3, 2021, 9:10 PM

#

Quick question what does listen command do in open level or console command

brazen sluice Mar 3, 2021, 9:20 PM

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Is there a way to "reply" to an RPC, as in send an RPC back only to a specific client

meager spade Mar 3, 2021, 9:29 PM

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send a client rpc back?

kindred widget Mar 3, 2021, 9:51 PM

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@pearl hearth Presumably your array of sessions is empty. Nothing to loop over.

pearl hearth Mar 3, 2021, 9:53 PM

#

@kindred widget so advanced sessions not work right ?

kindred widget Mar 3, 2021, 9:55 PM

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It works fine. I'm not sure what your problem is. Just answering the issue with the loop.

pearl hearth Mar 3, 2021, 9:59 PM

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I can try anything that comes to your mind

#

@kindred widget

kindred widget Mar 3, 2021, 10:02 PM

#

First assumption is that your settings might be wrong for steam. You'd have to google how to set up your stuff for steam, I haven't done it yet. But by default you start with the null subsystem. AFAIK you also have to run the game on multiple machines with multiple steam accounts.

pearl hearth Mar 3, 2021, 10:04 PM

#

yes i try different machines and different steam accounts

#

I watched this video https://www.youtube.com/watch?v=EDNF2DNLhPc

YouTube

DevAddict

Unreal Engine 4.26 Steam Multiplayer Beginners Tutorial

►Check out my Unreal Engine courses right here: https://devaddict.teachable.com

Getting Steam multiplayer to work in your Unreal Engine 4 games can be quite troublesome. So in this video, I'll show you how to create a very simple menu and server browser that works over the internet on Steam so you and a friend can connect and multiplayer! This ...

▶ Play video

#

It was work before

#

then I open new project and now not working

sharp night Mar 3, 2021, 10:16 PM

#

sharp night hello everyone. what is the definitive way to replicate a skeletal mesh change? ...

it'll never work.
https://issues.unrealengine.com/issue/UE-16478
https://answers.unrealengine.com/questions/328659/change-skeletal-mesh-blueprint-multiplayer.html

Unreal Engine

The Unreal Engine Issues and Bug Tracker

Welcome to the Unreal Engine Issue and Bug Tracker. You can check the status of an issue and search for existing bugs. See latest bug fixes too.

pearl hearth Mar 3, 2021, 10:20 PM

#

@kindred widget are you available

brazen sluice Mar 3, 2021, 10:48 PM

#

meager spade send a client rpc back?

Sorry for delayed answer
Yes rpc back, I was thinking client sends « please send me that data » and server replies with whatever data it need even async

meager spade Mar 3, 2021, 10:48 PM

#

ServerRPC from client to server, server does a Client RPC back with the data

brazen sluice Mar 3, 2021, 10:49 PM

#

But it’s going to be sent to all clients

#

Unless I had client owned version but I can’t do this because it’s thousands of actors per clients that’s tens of thousands for the server

meager spade Mar 3, 2021, 10:55 PM

#

what ou mean?

#

you*

#

the server rpc has to be run on an actor OWNED by that client

#

so a client rpc will go back to the same actor

#

owner*

spring swift Mar 3, 2021, 11:06 PM

#

Anyone got any experience with multiplayer and particles? im attemtping to make particles activate on the client player alone but it seems to be activating on everyones side

timid moss Mar 3, 2021, 11:09 PM

#

Is there an event (maybe a gamemode event or gamestate event) that fires on the server after the client finishes possessing the character?

kindred widget Mar 3, 2021, 11:12 PM

#

@spring swift What is the particle for? Sounds like you just need to trigger it locally.

spring swift Mar 3, 2021, 11:13 PM

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The Particles are for a snow effect that follows the player and i turn if off and on everytime a player hits a box in the world with a certain tag

kindred widget Mar 3, 2021, 11:17 PM

#

You may need to add a check to your box that checks if the hit player is locally controlled.

spring swift Mar 3, 2021, 11:19 PM

#

all the functionality is in the player tho? it triggers when the player hits a object tagged with the name

kindred widget Mar 3, 2021, 11:19 PM

#

Same thing. Only run the logic if the player is locally controlled. There's already an easy function to use on the pawn for IsLocallyControlled.

spring swift Mar 3, 2021, 11:21 PM

#

alright ill do some investigating

#

ah splended! it worked 🙂 thanks for that

brazen sluice Mar 3, 2021, 11:35 PM

#

meager spade the server rpc has to be run on an actor OWNED by that client

Right now the level parts are owned by the server

#

I replicate + multicast on them

#

But having 3000 replicated actors, even if no property gets replicated, already completly kills the netwrok.. .I thought the issue came from all the data, but I disabled them and the network is still congested

#

So I am trying to reach a setup where the level part wouldnt be replicated anymore but it's a little though to find a way to sync the level data properly, hence the question, could I just have the client say "hey server can you send me level grid 1,2,3" And server replying to that client only "here you go kiddo"

lost inlet Mar 3, 2021, 11:43 PM

#

sharp night it'll never work. https://issues.unrealengine.com/issue/UE-16478 https://answers...

I'm not sure how you ascertained this, there are plenty of ways of replicating this, even if it's just replicating a reference to the SKM and setting it on the client in an OnRep

#

might want to use a soft ref though so that it's streamed in as to not hitch the game

kindred widget Mar 3, 2021, 11:49 PM

#

Lolol I loved reading through those. "Known bug".

peak sentinel Mar 3, 2021, 11:58 PM

#

if(GetLocalRole() == Role_AutonomousProxy)
{
blah
}

In a server RPC, this will always fail, right?

kindred widget Mar 4, 2021, 12:01 AM

#

It should. Since those should only exist on clients. On server, role should always be authority.

peak sentinel Mar 4, 2021, 12:02 AM

#

So GetOwner() prefix never should be used if I want to pass client data in server RPC

#

Thats odd, I should be missing something then

kindred widget Mar 4, 2021, 12:02 AM

#

prefix? Not sure what you mean.

peak sentinel Mar 4, 2021, 12:03 AM

#

GetOwner()->GetActorLocation in a server RPC will always returns server location

#

Not clients

#

I meant that

kindred widget Mar 4, 2021, 12:04 AM

#

Correct. If you want client locations, you need to send it through the RPC. And even then if you're locally simulating, that's only an approximation.

peak sentinel Mar 4, 2021, 12:04 AM

#

What if I feed the data via OnRep?

#

Client calls RPC -> RPC sets the OnRep variable (with GetOwner()->GetActorLocation()) -> in OnRep set the transform (if role is autonomous proxy set the transform, and if we are server, skip the function?)

kindred widget Mar 4, 2021, 12:09 AM

#

What about for simulated proxies? This would only affect actors that are locally controlled, or owned by the local controller.

#

Not quite sure what you're trying, so I'm only half following.

peak sentinel Mar 4, 2021, 12:10 AM

#

One month ago I made a basic pawn movement replication and now I am extending it and refactoring

#

SimulatedProxies are being interpolated on Tick()

summer tide Mar 4, 2021, 12:10 AM

#

Some guys world origin shifting for multiplayer PR got merged into UE4 a long time ago. Anyone knows what happened to that?

peak sentinel Mar 4, 2021, 12:11 AM

#

I was passing the data via parameters on server RPC, but when netpktlag=200 my locations are acting weird (since I am sending data via parameters, server and autonomousproxy locs are different and they are both sending data and client is teleporting between two locations in a loop)

#

I thought if I use GetOwner()-> I could solve it, but didnt work. Trying to brainstorm about it

kindred widget Mar 4, 2021, 12:14 AM

#

From what little I understand of CMC, both the client and the server do the same input on the component. Both simulate it locally, and server replicates this to simulated proxies, but tries very hard not to interfere with the autonomous proxy unless it's out of range too far from the server version. I don't know if it does this by replicating the server's position constantly and lets the client check it, or what. But it rarely messes with the client's owned pawn. It feels bad for the player to get jerked around a lot. But at the same time there's little you can do for bad connections.

peak sentinel Mar 4, 2021, 12:16 AM

#

Yeah I also tried to understand CMC and analyzed other replicated components to find a workaround. Also I have followed the KrazyKarts tutorial (https://github.com/UnrealMultiplayer/4_Krazy_Karts/ --- thanks to Stranger 😄 ) . Looks like engine components and krazykarts have different philosophies about replicating movement.

#

Having a mix between two was a bad idea indeed 😄

#

As far as I know testing replication with netpktlag is a common rule and if its not working as intended with a value like 200 I am sure I am missing something

chrome pagoda Mar 4, 2021, 12:46 AM

#

Is it possible to replicate an actor to specific clients?

#

I'm trying to have clients spawn a projectile locally then have the server spawn it and replicate it to everyone else.

#

Right now I'm getting away with spawning it locally on the originating client, then spawning a non-replicated version on the server and other clients through a multi event.

meager spade Mar 4, 2021, 1:47 AM

#

override IsNetReleaventFor

#

on the actor c++ class

chrome pagoda Mar 4, 2021, 1:48 AM

#

Is that possible in blueprints or c++ only? I haven't messed with c++ at all.

meager spade Mar 4, 2021, 1:48 AM

#

c++ only, a lot of the advanced networking stuff is c++

#

you could..

#

spawn it locally, and set it to owner only

#

and spawn it on server, set the owner as the shooter, and set it owner no see

#

and keep it replicated

#

but that is just the mesh iirc

#

they will still get the projectile, but won't see it

#

but apart from that you are out of luck in BP 😦

chrome pagoda Mar 4, 2021, 1:50 AM

#

So I spawn it locally on the shooter's client, then spawn it replicated on the server while setting the owner to the original client and OwnerNoSee to true?

meager spade Mar 4, 2021, 1:51 AM

#

yeah but you can only do that on the mesh

#

in C++ you can stop the entire actor from replicating to owner

chrome pagoda Mar 4, 2021, 1:51 AM

#

Would that affect any particle affects anchored to the actor?

#

OwnerNoSee

meager spade Mar 4, 2021, 1:52 AM

#

you can gate them

#

but its finicky

chrome pagoda Mar 4, 2021, 1:53 AM

#

Hmm, seems like unnecessary complications when the c++ option solves everything.

vocal cargo Mar 4, 2021, 3:06 AM

#

Hey there, can someone help me?
I have a pawn that has custom movement that's being smoothed out so it looks good even when updated only once a second. This is very similar to the KrazyKarts projects if you know it.

My problem is when I try to stand on top of that pawn as a character, even if I'm attached to it.
The character only seems to update position as often as the pawn is updated, which results in very visible jitter.

What can I do here? Smoothing the character with similar code as the pawn might not work properly since it already has Unreal's own CharacterMovement replication. Is there another way to go about it?

green jewel Mar 4, 2021, 3:16 AM

#

Hey everyone I am working on a mac and using unreal engine to launch onto the oculus Quest 2. when I launch, the launch will succeed and the application is found in my unknown sources on the headset. when the application is selected and the three dots show me that loading is finished the screen remains black. what should I do guys ?

vocal cargo Mar 4, 2021, 3:17 AM

#

think you'd get better help over at #virtual-reality or #macos

green jewel Mar 4, 2021, 3:19 AM

#

🙏

versed socket Mar 4, 2021, 4:03 AM

#

I wonder - is it effectively equivalent from a networking performance perspective to replicate an Unreal primitive (e.g. bool, float, FVector), as opposed to setting it via Multicast event?

hollow eagle Mar 4, 2021, 4:05 AM

#

Depends what you mean by performance

#

the serialization format is the same

#

but there's an added CPU cost on the server for replicating variables

#

because it has to check to see if the variable has changed

#

(unless you use push model)

fossil spoke Mar 4, 2021, 4:06 AM

#

Is there any callback or function when an Actor has recently replicated properties?

#

There is PreReplication

#

Doesnt seem to be a PostReplication though after its finished dispatching the changed properties

meager spade Mar 4, 2021, 4:21 AM

#

@fossil spoke i don't see anything either

#

i looked for this before, i see where it calls Actor->CallPreReplication

#

but that is all it does in NetDriver

fossil spoke Mar 4, 2021, 4:21 AM

#

There isnt, i just double checked its execution path and there isnt anything at all.

#

Bit of a shame really.

meager spade Mar 4, 2021, 4:22 AM

#

feels like something that should be there

#

as it would be easy to put in

fossil spoke Mar 4, 2021, 4:22 AM

#

Yeah the only reason I can come up with for why they dont is they might not want to iterate the list of changed actors more than once???

meager spade Mar 4, 2021, 4:23 AM

#

but do they?

#

UActorChannel::ReplicateActor

#

can handle that no?

fossil spoke Mar 4, 2021, 4:23 AM

#

Yeah i would have thought so.

#

Like i said, cant really come up with a decent reason

meager spade Mar 4, 2021, 4:24 AM

#

seems odd, but 🤷 maybe its something that can be mentioned, they might put it in, but i can't see why UActorChannel::ReplicateActor can not call PostReplicate on AActor

fossil spoke Mar 4, 2021, 4:26 AM

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Maybe its already in UE5 😛

tranquil yoke Mar 4, 2021, 4:30 AM

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Can we replicate Texture, or do Video Streaming ? from Client to everyone.
I want to replicate a RenderTarget basically.
What would be the approach to do such kind of thing.

lost inlet Mar 4, 2021, 4:48 AM

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not doing that?

tranquil yoke Mar 4, 2021, 5:12 AM

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so what should i do ?

fossil spoke Mar 4, 2021, 5:12 AM

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Why do you need to replicate a RenderTarget?

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What are you trying to achieve?

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Are you trying to let people watch a Youtube video together ingame or something?

tranquil yoke Mar 4, 2021, 5:17 AM

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yes

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exactly something like that

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I am trying to think how can i replicate browser
I can replicate URL, but thing is for some website, URL stays same, but stuff changes on the same URL, so that is making my life misearble.

thin stratus Mar 4, 2021, 7:14 AM

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Replicate the action of clicking on the screen for example.

forest flint Mar 4, 2021, 9:48 AM

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hi. when I host a game without Steam (through console), the number of servers seen in game is equal to opened game instances. however, when each of my collegues host a game on Steam, only one server can be seen. I have no idea where I should start searching. game has unique AppID, we are in the same city

kindred widget Mar 4, 2021, 10:02 AM

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Out of curiosity. Why doesn't FastArray just have a .add helper function on the FFastArraySerializer with like a.. templated add thing and a second argument as a bool for whether or not to call PostReplicatedAdd or not? Is this oversight, or is there some reason they don't do this, or is it just a laziness factor?

thin stratus Mar 4, 2021, 10:16 AM

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forest flint hi. when I host a game without Steam (through console), the number of servers se...

Bit annoying to debug and I haven't done that in ages, but first thing would be checking that your colleagues are actually properly hosting.
Via existing logs and enabling LogOnline, LogNet and what not (might be worth checking source what Logs are relevant).
And if that is all working, check the same on the client that is trying to find the games, check if they are maybe found but discarded or so.
There are also logs that would print that iirc. Best is to go through the Steam Subsystem Plugin, and find the Session related bits and check the logs of that.

forest flint Mar 4, 2021, 10:31 AM

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thin stratus Bit annoying to debug and I haven't done that in ages, but first thing would be ...

ok, thanks, I will do that

twilit herald Mar 4, 2021, 11:06 AM

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Quick question, what is the console command to show dedicated server FPS for the clients? I did some digging in the internet with google and couldn't find anything relevant. Thanks!

brazen sluice Mar 4, 2021, 11:09 AM

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Unless there is an existing helper, I am assuming you need to RPC an updateFPS function

bitter oriole Mar 4, 2021, 11:14 AM

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Or simply replicate the current tick rate through game state

visual cosmos Mar 4, 2021, 12:09 PM

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Hmm, what's the general consensus/good practice on tracking players in gamemodes/other game logic? IE whether to use states or controllers as a "playerlist"

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A bit confused since most events inside GameMode use PCs, but GameStates default player array uses PSs to track the players pepehmm

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Yeh, PCs are owner only

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This is for mostly serverside logic, replicating is ofc through PS's

twin juniper Mar 4, 2021, 12:22 PM

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Hello all. I'm looking for info on level streaming with multiplayer. I've got a menu level as the entry level, the player clicks to join, and this opens the main level. I'd like to make it as flexible as possible, so that level streaming works on client, listen server, and dedicated server. Is there an easy way to achieve this? Right now, the level is opened on 2 clients separately. I'm calling open level from the Game Instance. Thanks in advance for any info.

plain torrent Mar 4, 2021, 12:23 PM

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I've got my Linux server build compiled and going to push to our Digital Ocean server VIA P4. What Files do I need to be pushing in order to run the server on our VPC?

marble gazelle Mar 4, 2021, 12:33 PM

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plain torrent I've got my Linux server build compiled and going to push to our Digital Ocean s...

you just need to run the packaging for the linux target and then you'll get a folder with all required data

plain torrent Mar 4, 2021, 12:33 PM

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marble gazelle you just need to run the packaging for the linux target and then you'll get a fo...

these are what I have, is that correct?

marble gazelle Mar 4, 2021, 12:34 PM

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yep, looks like

plain torrent Mar 4, 2021, 12:34 PM

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So I just execute the shell script on the server and point the shell script to the file above it?

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on our VPC that is

plain torrent Mar 4, 2021, 12:38 PM

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marble gazelle yep, looks like

our ignore list is removing the large file, is that something required?

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I've never really used linux before so I am not sure of terms or what I'm supposed to be looking for to be honest

marble gazelle Mar 4, 2021, 12:41 PM

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which file? this is a folder and for me it is just a few MB.
well but we don't check in any binaries anyway, so^^

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and for me this folder not even is part of the package oO

plain torrent Mar 4, 2021, 12:43 PM

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I have moved a few things about to try and restructure it, hopefully that doesnt cause issues

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the one above the shell script in my first picture which shows up as "File" for file type isnt being pushed to our server

marble gazelle Mar 4, 2021, 12:43 PM

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well, don't restructure stuff you don't know what the structure is for ...

plain torrent Mar 4, 2021, 12:43 PM

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very good point

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I'll move it back to the build folder

marble gazelle Mar 4, 2021, 12:44 PM

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If we package our stuff I get a folder and this folder we put into a docker container and that's it.

plain torrent Mar 4, 2021, 12:45 PM

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Is docker something I should be looking into?

marble gazelle Mar 4, 2021, 12:47 PM

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depends^^ It makes deployment very easy in the end, but most likely we will drop docker at some point, since we use kubernetes and agones to dynamically spawn new instances and this wont support docker in future if I understand it correctly (I'm not very exp with it, one of my team is handling that, I just use it^^)

plain torrent Mar 4, 2021, 12:55 PM

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If I'm only looking at having 1 test server up for 5-8 people max will I be able to do that on the same dropplet that my Perforce is on? Or what is the process to spinning up a server when someone calls the create advanced session blueprint in Digital Ocean? I've spent 3 days scouring for info but cant find much documentation

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I'm so lost in all of it 😄 Sorry for flooding with questions.. the last week has been just trying to get a server on Digital Ocean and I very lost

marble gazelle Mar 4, 2021, 1:11 PM

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what?

muted dirge Mar 4, 2021, 2:07 PM

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Quick question for the multiplayer's veterans:

Can a server build be generated with the binary ue4 version or the source is needed?

Thanks 😃

plain torrent Mar 4, 2021, 2:13 PM

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marble gazelle what?

Sorry that was worded pretty poorly. I've put the dedicated files into our server, and connected to the server console. How would I spin up an instance of that on Digital Ocean?

marble gazelle Mar 4, 2021, 2:14 PM

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what is digital ocean

plain torrent Mar 4, 2021, 2:14 PM

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a hosting platform

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Probably irrelevant i suppose

marble gazelle Mar 4, 2021, 2:14 PM

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no idea, we have a simple ubuntu server and just start the executable

plain torrent Mar 4, 2021, 2:15 PM

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Mine is running ubuntu 20.04

marble gazelle Mar 4, 2021, 2:15 PM

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well then just run the shell script I guess, not sure if you have to install smth before hand, since we use docker I don't need to care for that anymore xD

plain torrent Mar 4, 2021, 2:16 PM

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I've probably got some steps I'm missing then! I really appreciate your help

marble gazelle Mar 4, 2021, 2:17 PM

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good luck^^ sorry I don't remember what I did before docker

plain torrent Mar 4, 2021, 2:18 PM

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That's all good ^^ Is Docker worth getting in conjunction to Perforce, do you know?

marble gazelle Mar 4, 2021, 2:18 PM

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we use git, and we deploy with docker, not with git^^

plain torrent Mar 4, 2021, 2:19 PM

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I'm trying to run that on root of my fileserver but getting no such file directory

marble gazelle Mar 4, 2021, 2:20 PM

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you need to cd into the correct dir

plain torrent Mar 4, 2021, 2:20 PM

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That may help! Whoops

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Was hoping linux was just super smart with indexing magic or something

marble gazelle Mar 4, 2021, 2:20 PM

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well you still could have the same file name in different dirs 😉

plain torrent Mar 4, 2021, 2:21 PM

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now that's a good idea

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just make a normal shortcut for it in the main dir?

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nevermind i completely misinterpreted

marble gazelle Mar 4, 2021, 2:22 PM

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you could create a command in a .bashrc file that does the cd and startup

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yea, but typing that each time...^^ there is a command like startserver easier

plain torrent Mar 4, 2021, 2:24 PM

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Is cd a different syntax in ubuntu to windows? I can't seem to get into anything

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is what I have

marble gazelle Mar 4, 2021, 2:25 PM

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this is the sh script that unreal creates, yep

plain torrent Mar 4, 2021, 2:26 PM

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Would that work fine? or is there any better way about it

marble gazelle Mar 4, 2021, 2:27 PM

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make it run first^^

plain torrent Mar 4, 2021, 2:29 PM

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Yeah that's a good idea 😄

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I can't seem to cd into anything via my terminal :/ Am I following the file structure I see in Perforce which is "//depot/"

marble gazelle Mar 4, 2021, 2:31 PM

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that is the "online" structure but not the checkedout

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you first need to checkout the depot on the server where you want to run it, I don't think you can run smth inside your perforce server thingy

plain torrent Mar 4, 2021, 2:33 PM

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Is that where Docker comes into play?

marble gazelle Mar 4, 2021, 2:34 PM

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no

plain torrent Mar 4, 2021, 2:34 PM

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How would I checkout that on the server?

marble gazelle Mar 4, 2021, 2:36 PM

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Well you use perforce, I don't know how this works with linux^^

plain torrent Mar 4, 2021, 2:43 PM

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So by me having that on our hosted server I can't just fire up that application on the serve that's hosting these files?

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perforce sorry

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okay, I was hoping I could try and get it working that way to only have a single server running. So I should setup another vpc and run it on that?

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I think I've got you thanks 🙂 Would there be a tool to deploy my server builds to the cloud host that you could recommend?

plain torrent Mar 4, 2021, 2:48 PM

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plain torrent I think I've got you thanks 🙂 Would there be a tool to deploy my server builds ...

bloody arthritis 😄

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we got there in the end

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Oh don't you worry I have that DLC too

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Yeah, my experience of hands on server work are about 10 years old, and then it was primitive. So now i'm out of my remit entirely

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It looks like my webhost has an autodeploy tool that connects to Docker. Perhaps this will save noobie me

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Possibly a bit overkill then

marble gazelle Mar 4, 2021, 3:06 PM

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maybe start using smth like filezilla to upload the server package into some dir on your server and then use ssh to start it

pearl pollen Mar 4, 2021, 4:26 PM

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Quick question. If a controller is a local controller does that just mean that it exists on the client or does it mean that it's THE controller that represents the local player and not any of the replicated actors that the player might have spawned on his client?

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Or does it mean something completely different and for example controllers on the server are also considered local to the server?

thin stratus Mar 4, 2021, 4:27 PM

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Local Controller means it's the local one on that Client that owns it

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PlayerControllers only exist on Server and owning Client.

pearl pollen Mar 4, 2021, 4:28 PM

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Okay so there can be no local controller that isn't on the client and at the same time isn't the one that reacts to for example user's keyboard key presses?

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Local controller is the one and only? 😛

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For that particular client of course

thin stratus Mar 4, 2021, 4:32 PM

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Yes, Clients have no access to other Controllers

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And for the ListenServer, it would mean that it's their own Controller

spare moss Mar 4, 2021, 4:35 PM

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hey all, im getting issues with spawning replicated actors on the server, they spawn correctly on the server but are extremely unreliable with spawning on the client (I spawn ~8 actors that should appear on every client but every client can get different amounts of the actors to actually load)

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I'm wondering if this is just some weird in editor goofiness? I tried standalone but that still showed the issue and im considering compiling out a build to try it there but if its unlikely to be weird stuff in the editor then I probably won't bother

meager spade Mar 4, 2021, 4:56 PM

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never seen issue where client fails to spawn actors.. that sounds weird

spare moss Mar 4, 2021, 5:17 PM

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Yeah, it seems really odd cause I get no warnings or anything regarding it... they just never appear on the clients

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just as a rough showing, left is the server right is a client. There's no real consistency to what actor classes its happening to (Can see even in this instance, we have 2 "ufo" actors in the server but only 1 appears on the client,

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but this also only happens on the 2nd time we enter this phase of the game. The first time it runs round its absolutely fine

tranquil yoke Mar 4, 2021, 5:32 PM

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@thin stratus how would i even know if something clicked on browser, like a button inside a web page ?

thin stratus Mar 4, 2021, 5:34 PM

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No sure. It can totally be that UE4's very minimal Browser Support won't ever allow doing what you want to do.

rich ridge Mar 4, 2021, 5:47 PM

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@tranquil yoke there is a way.. if the website that you are loading is maintained by your team.. then you can bind a UObject to javascript function callback... And UMG webview to have a public function exposed to bind UObject.

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It needs c++, no bp at the moment

spare moss Mar 4, 2021, 5:49 PM

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OK right, regarding my issue of clients not spawning actors... it turns out i've gone from a completely smooth brain to having a single wrinkle. It wasn't set to spawn regardless of collision blocking it, so i guess on clients there was something blocking the collision that didnt exist on the server

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its always the simple things huh

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well, im glad its fixed but ive been trying to figure it out for most of the last week or 2 lmao

rich ridge Mar 4, 2021, 5:55 PM

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@tranquil yoke https://github.com/EpicGames/UnrealEngine/blob/master/Engine/Source/Runtime/WebBrowser/Private/SWebBrowser.cpp
and search for void SWebBrowser::BindUObject(const FString& Name, UObject* Object, bool bIsPermanent)
Name is function name that should be called from Object

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this way you can bind the UObject to web view button click.

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not sure though, but I think this is how epic games uses web view for payment gateway for nonce stuff.

weary badge Mar 4, 2021, 6:11 PM

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Hello, can anyone explain to me how to create a simultaneous match countdown ?
I found a video, but still failed. And the setup I made myself works somewhat, but I'm pretty sure that it's flawed

rich ridge Mar 4, 2021, 6:15 PM

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@weary badge what do you mean by match countdown?

weary badge Mar 4, 2021, 6:16 PM

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Before the match starts, I want a little countdown form 5 to 0 before the game starts

rich ridge Mar 4, 2021, 6:16 PM

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ok, so how you implemented it?

weary badge Mar 4, 2021, 6:16 PM

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But i always have delays

#

the last thing I tried was

#

an event dispatcher to all player characters, who then call the event on their respective player

rich ridge Mar 4, 2021, 6:18 PM

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how I would solve it is.

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I will make use of time variable from GameState class.

weary badge Mar 4, 2021, 6:19 PM

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It's for online play, in case this would be relevant

rich ridge Mar 4, 2021, 6:19 PM

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this time variable is actually seconds elapsed after match has started

rich ridge Mar 4, 2021, 6:19 PM

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weary badge It's for online play, in case this would be relevant

it is a multiplayer right?

weary badge Mar 4, 2021, 6:19 PM

#

yeah

rich ridge Mar 4, 2021, 6:20 PM

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you will have game mode, game state and PC and PS

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just multicast RPC to clients that from 4th second the clients should show countdown timer

#

and clients will check that time variable from game state.

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and on 9th second the countdown timer will reach zero

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i hope you understood my logic

weary badge Mar 4, 2021, 6:24 PM

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I'm reading it atm

rich ridge Mar 4, 2021, 6:27 PM

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basically clients should know the timer start time, once they know just start it. the clock second is same on client and server

weary badge Mar 4, 2021, 6:28 PM

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I'm making a new project to try atm

#

thanks for your advice !

tranquil yoke Mar 4, 2021, 6:54 PM

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@rich ridge Thanks, will look into this

tranquil beacon Mar 4, 2021, 7:08 PM

#

What systems are available in UE for creating multiplayer sessions beyond LAN setups? I know there is the steam subsystem, and Epic has its own EOS. Are there any others? Looking for something that can preferably be implemented through Blueprints since I have very limited coding experience

kindred widget Mar 4, 2021, 7:23 PM

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If you're intent on sticking with blueprints only, you're going to have a really bad time with multiplayer. It's doable, but you lose a lot of control.

tranquil beacon Mar 4, 2021, 7:54 PM

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@kindred widget , understandable. I'm looking to use this for enterprise remote collaboration, so I don't need a lot of features like player profiles and metrics tracking. As a starting point I'd like to just be able to get multiple people in different places into the same environment in VR. Is that still a stretch for Blueprint-only?

winged badger Mar 4, 2021, 8:18 PM

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no @tranquil beacon, but any kind of optimization is impossible with BP

#

metrics tracking in blueprint tho, i'd rather go watch over sheep all day 😄

tranquil beacon Mar 4, 2021, 8:28 PM

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Which system would you recommend then for a basic multiplayer setup like this? Again, I've seen Blueprint tutorials for setting up Steam multiplayer, but my understanding is that would require each client to create a steam login (maybe not a dealbreaker, but not ideal for enterprise). Wondering if there are other options here

kindred widget Mar 4, 2021, 8:40 PM

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@tranquil beacon Hard to say. Depends on your desired use. AFAIK, Null is fine for simpler uses. It allows LAN connections and direct IP connections. Steam allows easy those as well as friendslist and server search connections. I have no idea about any of the others like Facebook, Amazon, Twitch, etc. I'd assume something roughly the same as Steam with connections based on the platforms.

winged badger Mar 4, 2021, 8:44 PM

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they all have steam-like APIs

#

or most of them

dark edge Mar 4, 2021, 8:47 PM

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@tranquil beacon you'll have to do a little bit of C++ setup but it's not like you'll be writing 1000 lines or anything. I'm sure there's a million tutorials on getting steam sessions working

#

If it's a really small project and not meant to be widely distributed, you can probably just host your own server somewhere and do a IP connection

tranquil beacon Mar 4, 2021, 11:23 PM

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@kindred widget , @winged badger , @dark edge , thanks! I'll dig into these options further and see which one makes the most sense. Learning a little C++ along the way might not be too bad either

vivid seal Mar 4, 2021, 11:39 PM

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what function(s) should I be looking at overriding to verify moves in the CMC? looking for server authority crowd controls like Roots that can prevent movement while active, checking for them is simple enough, but I want to know exactly where I would put that check to prevent the server executing client-sent moves that should be rooted

winged badger Mar 5, 2021, 7:46 AM

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@vivid seal extra custom predicted stuff is carried in FSavedMove, or your subclass of it

#

so you need to extend it first, then plug it into the CMC

#

you'll see what to override with a reference search

vivid seal Mar 5, 2021, 7:48 AM

#

alright, ill take a look at FSavedMove

uncut schooner Mar 5, 2021, 8:33 AM

#

Hi how are you all doing?

#

Anyone knowsome good c++ multiplayer recourses

empty axle Mar 5, 2021, 9:24 AM

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@uncut schooner http://cedric-neukirchen.net/Downloads/Compendium/UE4_Network_Compendium_by_Cedric_eXi_Neukirchen.pdf

pliant locust Mar 5, 2021, 10:16 AM

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Hi trying to spawn and add multiple components to an array, but for some reason im only able to spawn 1 component on the client, subsequent additions are either overwritten or not spawned.

Works fine on the server. Anyone not as thick as me got any ideas, as what im doing wrong here 🙂

#

this is all done on the player controller btw

dark edge Mar 5, 2021, 10:24 AM

#

@pliant locust what are the multiple components you're talking about, are you calling that event multiple times?

pliant locust Mar 5, 2021, 10:25 AM

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its an inventory component, I call it every time a new rts unit is spawned

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so actor component to be more specific....

dark edge Mar 5, 2021, 10:26 AM

#

So that print string never prints anything more than zero?

pliant locust Mar 5, 2021, 10:27 AM

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indeed but only on the client, server prints correctly

dark edge Mar 5, 2021, 10:27 AM

#

You should definitely not be adding components on both sides. Replicate them. but why are you adding a component per unit, that sounds smelly

pliant locust Mar 5, 2021, 10:29 AM

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its not as bad as it sounds , think heroes of might and magic if you ever played that. the player can control a hand full of units and each unit has their own inventory.

dark edge Mar 5, 2021, 10:30 AM

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Why is the inventory not on each unit, and instead all on some Pawn or player controller or whatever you're putting them on

pliant locust Mar 5, 2021, 10:30 AM

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I didnt write the inventory, and it needs to be housed on the player controller by the way it was designed...

#

but if you say that is the wrong way to go about things I might just have to write my own then 🙂

dark edge Mar 5, 2021, 10:31 AM

#

That sounds whack, but anyway, just do the logic on the server, and replicate the results AKA resultant array

#

Looks like you already have the array replicated, just have a rep notify on it to trigger whatever should happen whenever it changes

pliant locust Mar 5, 2021, 10:33 AM

#

but I already tried running it on the server and the array still prints 0? am I missing something here?

dark edge Mar 5, 2021, 10:34 AM

#

Prints zero on the server?

pliant locust Mar 5, 2021, 10:34 AM

#

yeah when called from the client

dark edge Mar 5, 2021, 10:35 AM

#

What's inside that add AC inventory function? it looks like you're not passing over any sort of parameters so how would it even know what to add or what unit to associate it with?

pliant locust Mar 5, 2021, 10:37 AM

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Well the actor component, with pretty much all the stuff for the inventory. but as I said it successfully adds the first inventory but no subsequent components. so obviously the server is able to add at least one inventory... 😄

dark edge Mar 5, 2021, 10:38 AM

#

How does it know which unit to associate the inventory with? Or is it just like you spawn a unit, you know what index the unit was, so that is the index of the inventory?

pliant locust Mar 5, 2021, 10:40 AM

#

something like that yes, as you can see in the image, current hero selected gets assigned the array position after its been added.

dark edge Mar 5, 2021, 10:41 AM

#

You should pass current hero selected over inside the event

#

Otherwise if that hasn't been passed over already by the time the inventory gets created you could have the inventory get given to the wrong hero

pliant locust Mar 5, 2021, 10:42 AM

#

ah ok, but shouldnt the print string still show an increment on the array?

#

well that made no difference, but thank you for taking a stab I think I might just have to rethink my approach all together.

dark edge Mar 5, 2021, 10:45 AM

#

First thing first I would confirm that you're actually calling that event multiple times

pliant locust Mar 5, 2021, 10:46 AM

#

I mean it prints each time I spawn a hero so Im sure that works at least 😄

dark edge Mar 5, 2021, 10:47 AM

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Yeah I don't know, put the inventory on the hero. It's kind of strange to have it on the player controller anyway. If every hero has an inventory, just add it to the hero BP and call it a day

pliant locust Mar 5, 2021, 10:48 AM

#

yeah that sounds like that way to go, ill give that a shoot

hybrid zodiac Mar 5, 2021, 11:12 AM

#

Hi everyone, when I call SetViewTarget on another player's pawn for a spectator cam, how do I ensure that the camera's rotation follows the player's view point? Currently I'm just calling SetViewTarget and the camera follows the pawn fine, but the rotation of the camera is locked in a single direction. What I want is a follow cam. I have tried overriding GetPawnViewLocation and GetActorEyesViewPoint, but it's not working. Am I missing something?

#

I supposed I could manually force the camera using Tick, but that seems like a really ugly way of handling it

uncut schooner Mar 5, 2021, 11:47 AM

#

Thanks @empty axle

dark edge Mar 5, 2021, 12:01 PM

#

@hybrid zodiac what is the player character cameras rotation driven by right now?

#

If it's control rotation, I'm pretty certain you cannot see the control rotation of another client.

#

Try using getbase aim rotation instead

hybrid zodiac Mar 5, 2021, 1:00 PM

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@dark edge Hey thanks for replying 🙂 I have a function in my character class called GetLookRotation(), this function returns either the control rotation if you have authority or are the local controller, or it returns the replicated rotation (RemoteViewYaw and RemoteViewPitch)

#

I have overridden GetActorEyesViewPoint which uses this GetLookRotation() function to set the out rotation

#

But SetViewTarget still has the camera locked in one direction, so the camera must be getting its rotation from where else

#

What is CalcCamera used for? Is that for view targets?

hybrid zodiac Mar 5, 2021, 1:30 PM

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I tried overriding GetPlayerViewPoint as well, nothing

rose egret Mar 5, 2021, 1:34 PM

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where is GetNetMode in BP ?

#

I want to check if its client or not

kindred widget Mar 5, 2021, 1:55 PM

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@rose egret I don't think that's exposed. There is a KismetSystemLibrary call for IsServer though. It just checks if GetNetMode() != NM_Client

sudden lagoon Mar 5, 2021, 2:53 PM

#

Guys , I just wanna ask how do I implement a PUBG style matchmaking . Forget about the gameplay and the other thing just tell me how do I make a that sort of a multiplayer matchmaking system because the system matchmaking system I implemented is boring and felt a bit inappropriate and yeah please provide me with code in Blueprints preferably . If C++ no problem still . If you know what should be done . DM me

sick creek Mar 5, 2021, 2:57 PM

#

does anyone know what might be causing this behavior when moving right this only happens locally when moving left or right when both playing on client

#

its like some werid twitching and im trying to figure out what causes it

bitter oriole Mar 5, 2021, 3:00 PM

#

@sudden lagoon Matchmaking happens before UE4 - you'll need to handle it on your own servers, with your own matchmaking service, if you want something somewhat elaborate

kindred widget Mar 5, 2021, 3:01 PM

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Hmm. Had a random, curious thought. How would you replicate ocean waves? Been playing Valheim. Was rather amused by the sailing. But it had me wondering how I would personally do that. My first thought was replicating something like an array of values that could create or simulate splines, like wave height, length, speed, etc, and let each machine simulate that with a few updates a second.

bitter oriole Mar 5, 2021, 3:02 PM

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Deterministic simulation with a shared seed + start time

kindred widget Mar 5, 2021, 3:02 PM

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That's fair. Even with weather differences it would still be about the same. And server time is already replicated.

#

Fun thought. I might try that later. Need to finish my building stuff first. Snap points.

olive kraken Mar 5, 2021, 3:08 PM

#

Hello! how can I send AIcontroller data that happens only on server to a specific widget?
As expected, casting to AIcontrollers in client fails on Widgets.

eternal canyon Mar 5, 2021, 3:09 PM

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@sudden lagoon There are many ways to do what you want though I dont think anyone is interested in making the whole system for you. Though for my games I use playfab which has some blueprint support to for playfab party its fully c++

kindred widget Mar 5, 2021, 3:10 PM

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@olive kraken If you need stuff on the client. Possibly use the pawn instead of the controller and just replicate it. Then the client widget can just get it locally.

sudden lagoon Mar 5, 2021, 3:10 PM

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No I don't wanna system but some code for a kick start . @eternal canyon

eternal canyon Mar 5, 2021, 3:10 PM

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https://www.youtube.com/channel/UCOAIvB0GqVYwtFDYHBMvSFw

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I have foudn this guy

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particularly helpful @sudden lagoon

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though playfab is just a lot of json objects

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which arent hard to get used too

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and you get 750 hours a month for servers

olive kraken Mar 5, 2021, 3:12 PM

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kindred widget <@!714042304004096070> If you need stuff on the client. Possibly use the pawn in...

Yeah, I thought about it. The problem is that most of the data happen after our perception system in the controller AI.
So I might need to go from controller to character to widget?

eternal canyon Mar 5, 2021, 3:12 PM

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eternal canyon and you get 750 hours a month for servers

for free

leaden atlas Mar 5, 2021, 3:16 PM

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im doing a networked building kinda game

eternal canyon Mar 5, 2021, 3:16 PM

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I could make an example project u could use for a queue system and server system example @sudden lagoon btw

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if u really want

leaden atlas Mar 5, 2021, 3:17 PM

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and my buildings disappear from a distance because of net cull distance, i guess

sudden lagoon Mar 5, 2021, 3:17 PM

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Yes I want it . Is it free ?

eternal canyon Mar 5, 2021, 3:17 PM

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what is?

leaden atlas Mar 5, 2021, 3:17 PM

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would it be a bad idea to turn the net cull distance way up so that my buildings dont disappear?

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at least for like, walls and floors and stuff

sudden lagoon Mar 5, 2021, 3:17 PM

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The Project @eternal canyon

eternal canyon Mar 5, 2021, 3:17 PM

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im pretty sure if u have net load on client enabled that shouldnt happen @leaden atlas

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@sudden lagoon I havent made one, I was aying I could if people want

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🙃

leaden atlas Mar 5, 2021, 3:18 PM

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@eternal canyon does that apply to stuff dynamically placed?

eternal canyon Mar 5, 2021, 3:18 PM

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well im pretty sure its only for stuff that is placed in the level

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not spawned

sudden lagoon Mar 5, 2021, 3:19 PM

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na I don't want it I think I know what to

leaden atlas Mar 5, 2021, 3:19 PM

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yeah its spawned in

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i mean is there a way to keep it in past its net relevancy distance?

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i dont want the client to keep receiving updates about the actors

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but i do want them to be able to see it at a distance

eternal canyon Mar 5, 2021, 3:20 PM

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always relevant tho I wouldnt recommend that for a ton of actors

leaden atlas Mar 5, 2021, 3:20 PM

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it would be for a ton of actors

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its for like, walls and floors and construction stuff

rich ridge Mar 5, 2021, 3:21 PM

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leaden atlas it would be for a ton of actors

In this case your best bet is ReplicationGraph

leaden atlas Mar 5, 2021, 3:21 PM

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ooh nooooo

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okay

rich ridge Mar 5, 2021, 3:22 PM

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There is official stream on rep graph.. you can watch that to see if it actually solves your problem

eternal canyon Mar 5, 2021, 3:23 PM

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yea

leaden atlas Mar 5, 2021, 3:23 PM

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kk

eternal canyon Mar 5, 2021, 3:23 PM

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also look at shootergame

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they also show rep graph

leaden atlas Mar 5, 2021, 3:23 PM

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this looks like exactly what i need

rich ridge Mar 5, 2021, 3:23 PM

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And if I m not wrong, engine also ships a default graph example

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But remember rep graph 📉 is c++ only

eternal canyon Mar 5, 2021, 3:24 PM

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theres a plugin somewhere on github that exposes some of it to blueprint

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tho its the bare minimum

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and its pretty old

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https://github.com/locus84/LocusReplicationGraph

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@leaden atlas

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^^

leaden atlas Mar 5, 2021, 3:27 PM

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kk

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i can do c++

eternal canyon Mar 5, 2021, 3:27 PM

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this is the blueprint exposed

leaden atlas Mar 5, 2021, 3:28 PM

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oh this helps though

sudden lagoon Mar 5, 2021, 3:35 PM

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@eternal canyon I came across this tutorial series but the thing is that I don't have a Steam API key so yeah I did not attempt doing this tutorial series .

eternal canyon Mar 5, 2021, 3:35 PM

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you dont need steam

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@sudden lagoon

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Thats just what he'susing

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the blueprints still apply

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for everything else

sudden lagoon Mar 5, 2021, 3:36 PM

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I have steam but no API key

eternal canyon Mar 5, 2021, 3:36 PM

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u dont need to use steam at all

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nor do u need an api key

sudden lagoon Mar 5, 2021, 3:36 PM

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OOO

eternal canyon Mar 5, 2021, 3:36 PM

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The system doesnt rely on an OSS

sudden lagoon Mar 5, 2021, 3:37 PM

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So , that part where he installed steam is unnecessary and I am not talking about OSS , OOO means OHHHHH ! now I get it @eternal canyon

eternal canyon Mar 5, 2021, 3:39 PM

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yea

sudden lagoon Mar 5, 2021, 3:41 PM

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Ok thanks @eternal canyon

wheat magnet Mar 5, 2021, 3:47 PM

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how to port forward for unreal?

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for test dedicated server

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the issue is that port forward doesn't allow my ISP, so what should i do?

plain torrent Mar 5, 2021, 4:16 PM

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Heya all, someone on my team is trying to connect to our dedicated server but is unable to. I can see "client connecting with invalid version. LocalNetworkVersion: -626150653, RemoteNetworkVersion 1082236133"

Any idea on how to get around this? I've compiled the server VIA source, but my team is running on standard UE clients.

eternal canyon Mar 5, 2021, 4:25 PM

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well it seems tehy are ona diffrent build version

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that isnt compatible for some reason with the servers

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tho i may be wrong

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@plain torrent also why not build the client from source also

plain torrent Mar 5, 2021, 4:27 PM

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I'm not sure I follow what you mean sorry

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I have built the client from source to create the server, so the rest of the team also need to be running source builds, right?

eternal canyon Mar 5, 2021, 4:29 PM

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im so confused what ur doing😅

plain torrent Mar 5, 2021, 4:29 PM

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me too me too

eternal canyon Mar 5, 2021, 4:29 PM

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just package a windowslcient

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and a windows server

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and then upload and run the server