#multiplayer

1 messages · Page 614 of 1

spark owl
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so what exactly would go into the MyCharacter(c++) class that I couldn't have on the BP itself

pallid mesa
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specific networking stuff

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custom relevancy checks (for instance)

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fancy work with data structures... and a lot of stuff you won't be able to do in BP's

spark owl
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so that is where the client auth functions would go?

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for the kicking for example

pallid mesa
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not necessarily...

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As Cedric said before

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you can do net prediction/compensation in BP's directly

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however you'll realise as you advance in the development of your project that going to C++ will be a very great idea

spark owl
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ok but if all I need is the client auth functions to make kicking in multiplayer more responsive and I can do it in BPs, what reason beyond that is there to go into c++?

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would it just make it more efficient? I know you guys mentioned the net relevancy but i honestly don't know what that means

lilac raven
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Hi, is there a way to check if all networked players have loaded into the map

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?

winged badger
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after seamless travel, yes, NumTravellingPlayers == 0

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after hard travel, no

lilac raven
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perfect im using seamless travel, thank you!

winged badger
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its in GameMode

spark owl
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I apolagize if it seems like i'm asking the same questions over and over, just trying to fully understand

winged badger
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the NumTravellingPlayers

pallid mesa
spark owl
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looking now

pallid mesa
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also net relevancy is something you'll have to learn eventually

spark owl
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is net relevancy basically "if the client is not effected by it, don't process it for them"?

pallid mesa
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kinda yeah

spark owl
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man i'm learning so much thank you guys for all the info

spark owl
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looking back at the chat, will I really only be able to have a 4 player game without c++?

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and still remain effecient

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oh balls i guess i gotta make the big leap to c++ then

lilac raven
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@winged badger num travelling players is from game mode not gamemode base? so i cast to gamemode, but do i cast from the lobby gamemode where im travelling from or my games game mode where im headed?

winged badger
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its gamemode, no idea for gamemodebase

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its less suitable for MP so never attempted to use it

lilac raven
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ah right, damn its tough finding when the clients are ready.

spark owl
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@pallid mesa or @winged badger so if I want to implement c++ into my project to increase network efficiency, where could I get info on how to directly apply it?

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I'm not sure where to start

pallid mesa
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it's a good palce where to start

spark owl
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ok ty

potent cradle
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Does anyone have any recommendations on server hosting providers?

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I was looking at vultr as an option.

spark owl
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I'm not an expert in this area but I went with AWS gamelift. I don't know if you're using blueprints or not but I got a plugin off the marketplace called "Multiplayer with blueprints" by multiplayscape. It can create and shutdown servers dynamically based on how many people are playing your game.

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also has abilty to make party system, and profile system to save stats for players

soft relic
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Would accessing a widget variable server side cause a crash instead of a warning?

meager spade
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widgets do not exist on dedicated server

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all widgets are local only.

soft relic
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Yeah I know that, but how does it handle it?

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I am getting some very weird server crashes with pretty minimal call stacks to understand whats happening, it doesnt even show an error but the server crashes, so Im wondering if widgets crash a server that way or not

celest sleet
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I would assume attempting to access a widget variable on server would throw a warning that none was tried to access, as i have seen when accessing a particle system variable on server, another object that is client only

soft relic
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Makes sense, latest I could see was

    GreyStone_C /Game/PersonalSpace/Stefanos/Maps/GameplayMap.GameplayMap:PersistentLevel.GreyStone_C_2147482369
    Function /Game/Characters/BaseCharacter.BaseCharacter_C:ExecuteUbergraph_BaseCharacter:0086
[2021.02.02-20.17.04:071][735]LogScript: Warning: Script call stack:
    Function /Game/Characters/GreyStone.GreyStone_C:ReceiveBeginPlay
    Function /Game/Characters/GreyStone.GreyStone_C:ExecuteUbergraph_GreyStone
    Function /Game/Characters/BaseCharacter.BaseCharacter_C:ReceiveBeginPlay
    Function /Game/Characters/BaseCharacter.BaseCharacter_C:ExecuteUbergraph_BaseCharacter```
But that is still a warning
gritty pelican
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can i replicate only needed items in array? for exaple in My InstancesHealth array i have 2 item (FInstanceHealth), i want to replicate only second item, because first not changed, or vice versa

USTRUCT(BlueprintType)
struct FEUDALLANDS_API FInstanceHealth
{
    GENERATED_BODY()
public:

TArray<uint8> InstanceHealth;
}

UPROPERTY(Replicated)
TArray<FInstanceHealth> InstancesHealth;
celest sleet
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I am still trying to get basic VR multiplayer functional. I applied the VR Expansion plugin to the VR template and it worked fine. But then when I applied the Plugin to the main project in the same way, the client player does not receive input from their controllers once connected to the listen server. So there must be some diference in the 2 projects causing the problem. so I am putting a debug VR text to display various things. I currently have 1) a player ID line that is set when the pawn is spawned and is incremented in spawn order 2) Player input, ex. Left Trigger Pulled, to determine if input is even registering 3) a line reacting to the Possession events, should display "Possessed" if possesion was successful. Is there anything else I can print to this text to try to identify why the pawn is not responding.

unkempt tiger
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Anyone has some good tips on increasing the mechanical stability of a physics-inspired vertical capsule movement scheme to reduce prediction errors?

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By stability I mean - small changes lead to small changes, rather than small changes lead to big changes. A good example is sweeping a capsule against some geometry - the client with a slight variation in positions, which expands into a big difference in final locations, which means a big jitter

spring swift
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I need some help with making a simple UI Updater, im trying to find a way to make a Player class selecter that replicates that a class has been selected so others cant select it

fossil spoke
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It only sends the data that has changed.

steel vault
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@spring swift this is pretty simple. You can store an array of selected classes that is replicated and OnRep you simply update the UI to X out and make the class not selectable.

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You can put that array in the GameState and have it replicate to everyone.

lone shale
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is steam subsystem only local when you dont pay to publish game?

steel vault
lone shale
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yeah but when we both are in the game the widgets dont work anymore, when im on first it works for me when hes on first it works for him

steel vault
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That has nothing to do with steam then. That's a problem with your widget structure.

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Widgets aren't replicated, they are only local.

lone shale
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ok i rephrased that bad..

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i mean if i open the game first it connects to steam and goes on spacewar if he tries to open second then it doesnt vice versa

steel vault
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Are you using space war? That should work because it's an example app. You usually should package to run it you cannot run it in editor.

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Or if you don't package run it in console with -game

lone shale
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yep i packaged it and gave it too both of us, have you tried something like this?

steel vault
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I haven't run spacewar myself, no. But I know others have and it works just fine.

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Did you follow a tutorial to get it set up?

lone shale
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yep cpy and pasted ```[/Script/Engine.GameEngine]
+NetDriverDefinitions=(DefName="GameNetDriver",DriverClassName="OnlineSubsystemSteam.SteamNetDriver",DriverClassNameFallback="OnlineSubsystemUtils.IpNetDriver")

[OnlineSubsystem]
DefaultPlatformService=Steam

[OnlineSubsystemSteam]
bEnabled=true
SteamDevAppId=480

[/Script/OnlineSubsystemSteam.SteamNetDriver]
NetConnectionClassName="OnlineSubsystemSteam.SteamNetConnection"```

spring swift
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Hey soopnano are you having touble connecting to the Steam Subsystem?

lone shale
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it connects to spacewar when i open the game first but if he opens it first and i open it second it doesnt connect

spring swift
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Hmm

lone shale
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and if we both open it at the same time then it doesnt connect at all

spring swift
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i do not know then

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hey Hold up Xero, you mean i don't have to go into the Gamemode to update the UI that everyone uses??!?!?

steel vault
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GameMode is server side only, so you definitely should not be updating UI there.

spark owl
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if u need variables for widgets store them in gamestate

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widgets can get them easily just get game state, cast to your game state, get variable

spring swift
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Hmm, it is true but how would i replicate the buttons to all the clients? just through a custom event?

steel vault
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OnRep your replicated array in gamestate and send it through to your UI

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You don't replicate buttons, you replicate state.

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AKA you replicate an array of Enums

spring swift
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alright yeah that might be where im going wrong, im using Booleans to determined the buttons status

steel vault
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You should know which button is which class and when the array of enums gets replicated you should loop through them and update them as necessary

spring swift
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Ive never really used Arrays in unreal, but i have a rough understanding of the,

steel vault
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Or you store them in a TMap and go straight to them based on the enum key

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Start out by attempting to replicate an array in gamestate of anything

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Once you do that, make an OnRep function that sends the new array through to your UI

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After that, make them enums

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Baby steps

spring swift
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so i make a array of my buttons, and attempt to replicate them in gamestate, ill give that a shot first

steel vault
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Do not make an array of UI elements. Make an Enum that contains each button type/class

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Then make an array of that Enum

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I have to go to bed, but I'm sure someone else here can help you out if you get stuck. Good luck.

spring swift
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Alright

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well im gonna have to do my research as idk how Enum works

spark owl
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so are enums basically integers, but you can name each value for them?

steel vault
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Basically, yes.

spark owl
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lol meanwhile i've programmed my whole game using integers where I should've used enums, and I've just been remembering what each value is for haha

steel vault
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That's the whole point of Enums, to maintain readability while keeping information in a small package.

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And allow you to create states.

spark owl
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very cool i've learned so much from this discord in just the day i've been here

fervent yacht
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Probably best to dive into a C++ course.

steel vault
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I would highly recommend this channel specifically. There are a lot of very knowledgeable people here that are very active.

spark owl
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yeah i was having a convo with some really smart guys earlier about client side replication

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I need to learn c++ to incorporate client side replication in my game but I have no idea where to start.

steel vault
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Go to Udemy's website and look up C++ courses. They have sales for 10 dollars for those courses, and they have ones that teach you from the ground up that I also highly recommend.

spark owl
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ty for that i'm gonna buy it

spring swift
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alright i made the Enum, i have no idea how to use it tho, i made it into a array in player state as a object refrence i think lol

steel vault
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You can't put a price on good teaching... it's worth every penny.

spark owl
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^

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@steel vault @spring swift does raise a good point, how would one keep track of players already selcted/in play with an enum? boolean array to work along side it?

steel vault
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You simply listen to the array changing and when it does you send that array to your UI, then loop through the array and disable the button that matches that enum.

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The simplest way would be to also create a TMap that uses the Enum you made as the key, and the value would be the UIButton

spring swift
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OnRep meaning custom event i assume?

steel vault
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So you go first enum in the array? Ok got it, now find the value from the TMap, ok that gives me the associated button, now disable it.

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If it's in BP I believe so. I'm more accustomed to doing the OnRep in C++ but I can google it really quick.

spring swift
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just did

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its a custom event

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i also fixed it its in GameState now

steel vault
spring swift
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oh fancy

steel vault
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So in your enum you made, make a bunch of cases for each class

spring swift
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so i can just set them to replicate

steel vault
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Yes you set the property to replicate

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Which would be your array

spring swift
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yep done

steel vault
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So now, when you click on a button locally, you send a Server RPC that updates that array by adding the button's associated enum to that array on the server.

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When you do, the updated array will replicate and you will RepNotify handle it.

spark owl
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when a player leaves or joins the game, or joins a team or switches teams, could I use repnotify to call a custom event that will update the teamsheet/scoreboard? because right now I'm basically doing it manually

steel vault
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Absolutely

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RepNotify is a great way to handle state change to update UI

spark owl
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hmm okay so If I have an array of the player states in the game, and a variable in any player state changes, it will call the repnotify?

spring swift
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would this work if the player clicked a diffrent class? making the other one available?

steel vault
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If the variable is set to replicate and RepNotify is turned on, then yes, it should call that event.

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PlayerState is replicated

spark owl
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ok so how does one connect the repnotify(i.e. the variables in the player state changing) to the actual custom event on the widget?

steel vault
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The link I posted shows you how to respond to the repnotify.

spark owl
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ok i will look at it thank you for all the info xero this community is great so helpful

rocky topaz
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it's free

spring swift
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ok, one other thing is should these RPC's be in the Game state? or the widget?

spark owl
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lol good thing I haven't yet then

steel vault
rocky topaz
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(copy paste of an announcement I sent in my server)

There are 4 very high quality Unreal Engine courses given away for free by Epic Games which came in partnership with GameDev.TV recently

This is the course I used to learn Unreal Engine 4 to get started myself (I gave it 4/5 or 4.5/5 iirc) :
https://www.gamedev.tv/p/learn-unreal-engine-c-developer-4-22-for-video-game-development/?product_id=1500306&coupon_code=0AE463C0

As well as some other pretty good quality courses :
https://www.gamedev.tv/p/unreal-blueprint/?product_id=1500312&coupon_code=18428DF0
https://www.gamedev.tv/p/unrealmultiplayer/?product_id=1500305&coupon_code=13E22092
https://www.gamedev.tv/p/unrealvr/?product_id=1500316&coupon_code=0187CB32

Here's more info :
https://media.discordapp.net/attachments/781964357830705185/789205083803222067/unknown.png

Learn Unreal Engine C++ Developer 4.22 | GameDev.tv

Learn C++ from scratch and make your first 4 video games in Ureal Engine. The online course is created in collaboration with Epic Games

Learn Unreal Blueprint Visual Scripting | GameDev.tv

Learn visual scripting in Unreal Engine Blueprint dev course. Code your first game in 100 minutes. Created in collaboration with Epic Games

Learn Unreal Online Game Development In C++ | GameDev.tv

Learn online game development in C++. Created in collaboration w/ Epic Games. Use Unreal for online game dev. The course covers LAN, VPN, Steam & more.

Learn To Make VR Experiences with Unreal in C++ | GameDev.tv

Learn how to make VR Experiences with Unreal Engine in C++. Design for Oculus Rift and Steam VR with C++11. Course created in collaboration with Epic Games

steel vault
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Hmm they must have received a mega grant

rocky topaz
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yes they did several months ago

steel vault
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Ahh did not know that. Good for them! I love those guys.

spark owl
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hmm okay I will look at them, I would assume it's prob not a good idea to jump from not knowing how to use c++ in ue4 at all to programming client side replication right?

rocky topaz
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the screenshot at the bottom (which was an email they sent to people in the Unreal Academy thingy) was sent to me in December I think

steel vault
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Cool thanks for the info.

rocky topaz
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the good news is that it's literally the course you were planning to buy

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but in their own website instead of Udemy

spark owl
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great

rocky topaz
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I've been jumping around their multiplayer stuff and it's somewhat good but it lacks of use cases (and explaining what should go where and why)

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they're always more focused on the very specific use case of the projects (which in this case will be a platformer puzzle game first then a racing game)

spring swift
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hmmm, i cant figure out how to get this Enum to work'

rocky topaz
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the multiplayer course also has several hours on stuff completely unrelated to multilpayer (making a platformer game's mechanics, and then making an advanced UI) the former is completely useless to anyone that followed their first course c++, the latter is okayish (still 90% useless)

steel vault
spark owl
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does it teach about net relevancy? I've been told that's quite important for multiplayer optimization

steel vault
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No. Your best bet for that nitty gritty stuff is to do everything else first.

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You won't be worrying about net relevancy until your game is up and running.

rocky topaz
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I assume it would be at the very end, I didn't finish it

steel vault
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I've done all of those courses. They are good but you won't learn even half the stuff you learn from this channel.

rocky topaz
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yup totally

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they're okayish to get yourself started and have a footing but you will find yourself with a ton of holes in your knowledge sadly

steel vault
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For sure.

rocky topaz
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the official documentation being more dry than the Sahara in many instances you will end up in AnswerHub, here, or watching some very obscure tutorials from 2015 and trying to extrapolate out of their niche use case

spark owl
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I almost feel like it will be ineffecient to try to learn from video tutorials. I would like to know exactly what I need to implement and then how to. It feels like video tutorials can't really do that. Do you guys know of anywhere to get 1 on 1 lessons?

spring swift
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I press button, it casts to the gamestate, there it activates a server only RPC that does somthing to the Enum

rocky topaz
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it's basically a 1 on 1 lesson as you have homework and all

steel vault
rocky topaz
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you should watch it in x2 speed, follow with them a little bit (or maybe not at all, depends on whether you think you know perfectly what they're talking about or not, if not better experiment yourself)

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also perhaps try checking the pinned resources

spring swift
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the RPC is in the gamestate so when they cast it uses the RPC from there

steel vault
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Good. Then it should be working

spring swift
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i mean yep i guess its replicating

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but the Enum is confusing

steel vault
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The replicated array is of the Enum type you created. Your button press simply does an add to array and adds one of the cases you created.

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Enum Type - Character Classes. Enum Cases - Warrior, Mage, Hunter, etc.

rocky topaz
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btw I wanted to ask for input on the structure of my board game, to make things somewhat short, I'm making a board game as a University Project, I suggested to make it with UE4 and the 4 other members of my team accepted and followed, however they're completely new to UE4 and never used it before, so I am building the structure of the game myself and rather let them fill in the gaps or improve functionality

spring swift
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alright ill let you off to bed

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i think i got this

steel vault
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Awesome. Good luck.

rocky topaz
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the game itself has to have an AI, we also decided to have it be playable in multiplayer to be able to think about the AI since we can't play it IRL, it's a game where each player has multiple pawns (usually 6) and plays up to (usually 2 or 3) times per turn, where they are allowed to play a card from their hand to advance one pawn of their selection to the next empty board cell with the same card type, or decide to make a pawn go backward until they find 1 or 2 pawns in a cell and then draw 1 or 2 cards respectively

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the end goal is to get all of your pawns to the end of the board

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Right now I have the board cells (data) generation working in the background (being called by GameModeBase on InitGameState) and the board representation itself working with a board manager that spawns random pieces from a pool and then fills the marker spots (cells) from the data

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I feel like this is a pretty good approach to it but I'm kind of lost on where should the cards and pawn data be kept

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I thought initially that the cards should be stored in the player controller so that other players cannot see them even with a modded client (since they would be replicated to all clients if they are on a player state or a pawn)

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but the pawns would be in the player state since all players can see them

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but I'm totally lost on where I should make the data assignment and then where would I handle the spawning of the actual pawns

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(and showing the cards)

steel vault
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If you never see the other player's cards until they flip one over, then technically you don't need them replicated at all besides the number of cards and you can keep all of the information in GameMode since it's guaranteed to be server only and dish it out as necessary.

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I wouldn't worry about hacking/cheating that much though if you're just doing a student project.

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You can always optimize it out with anti cheating later.

rocky topaz
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I don't want to get my teammates working on the wrong spot so I'm being extra cautious on where I should implement things

steel vault
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Well if they are new, I would start them out with things being easier than worrying about anti cheats. But either way, GameMode still makes sense if that's what you want.

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Otherwise, stick it in GameState and let everyone know about it for ease of replication.

rocky topaz
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how would the player see their own cards? (if it's in gamemode)

steel vault
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Client RPC from the server to tell them what they have been dealt from the game mode

rocky topaz
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I see, and then keep the information without replicating?

steel vault
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Indeed

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No one else needs to know until they Server RPC play this card

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Then it simply plays the flip animation on a card and shows the card played

rocky topaz
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sounds pretty fair, however I'm also mostly confused on where I should be putting the initialization logic

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should I call everything on the InitGameState (for data)?

steel vault
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Again in the GameMode. You can have it completely handle the cards and state of the game if you want it all server side.

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Create a random deck and assign random cards to players there.

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Then when you're done Client RPC each client their deck

rocky topaz
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where would the client RPC be? controller?

steel vault
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Could do it from the GameState or PlayerState

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Controller works too

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Just depends on how deep you want to go with it

rocky topaz
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I see

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how about handling "turns"

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and where would be a good place to start the game? begin play?

steel vault
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That sounds like a GameState variable. Everyone should know whose turn it is.

rocky topaz
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ah as easy as that

steel vault
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Other than that you can make the rest however you see fit. Alright, I'm really going to bed now. Gnight.

rocky topaz
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thanks a lot!

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I'm going to keep this in mind, I will go sleep too it's 7:22 am here 😅 nighty night !

spring swift
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welp i am truely garbage at this lol

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i am definetly not comfertable with Enums, never used it and its confusing alot...

glad sedge
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My pawn's root component is a capsule component - it's not marked for replication, but should it be?

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I'm not seeing any issues on movement, but if a block hits the actor, it kinda goes weird.

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i.e. teleports the actor etc

fervent yacht
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Enums are really simple. Just think the word is mapped to an integer.

spark owl
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@rocky topaz I looked over those tutorial series you linked and the more advanced multiplayer ones are locked behind a paywall

kindred widget
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@spark owl If you're semi comfortable with the editor, you will get a lot more mileage out of just trying stuff and reading. This is only my personal opinion, but I find tutorials largely a waste of time past getting used to the editor. They placate a lot of people into simply following them to implement systems and a lot of people don't really learn from them, they just use them to put stuff in a project. Ask that same person to understand why that system works and they usually have no idea, no conceptual grasp of it. It's different to implement something that someone else has come up with than it is to go through the steps of realizing why you need each component to work as it does. Tutorials also often follow the more university like structure that is meant to simplify everything. It's teaching you to learn how to learn, so to speak. They don't so much teach best practice or good usage scenarios a lot of the time. So paying for that is even worse. You can get the same information just googling and spending the same time reading, and that's free.

spring swift
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Would it be possible to use Boolean’s instead of the Enum tactic. I found that hard to get my head around

spark owl
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I'm trying to find out how to get started implementing client side replication into my project that is only BPs right now. Have no idea where to start

spring swift
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@spark owl you will find custom events are your life saver

spark owl
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sorry not replication prediction

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derp

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client side prediction

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complicated networking stuff

winged badger
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its not that complicated, its exceptionally verbose in BP though

spark owl
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I just don't know where the hell to get started

kindred widget
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For what kind of system? What are you trying to predict?

winged badger
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there should be plenty of resources on predictive movement

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all prediction works on same principles

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doesn't even have to be unreal related to give you a starting point

spark owl
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my game is a fast paced soccer game. When player releases kick button it is super delayed so I need to have the client predict the kick and then interpolate to server state

winged badger
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the halo GDC talk is also good to get a basic grasp of network

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yeah, if there is physics involved, you're screwed

spark owl
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lol

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that's great

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why is that?

winged badger
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its not deterministic

spring swift
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Hmm I have tried this my self too

kindred widget
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Is the ball driven by a PMC?

spark owl
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PMC?

kindred widget
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Projectile Movement Component.

winged badger
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2 replays of exact same scenario = 2 different results

spark owl
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even if the impulse is the exact same?

winged badger
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yes

spring swift
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Yep. It’s annoying

winged badger
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and you have none of the tools for fine control in BP

spark owl
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rocket league does it no?

winged badger
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rocket league is not BP project

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and it only has like 8 physics objects

spring swift
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I did try once remove all the default replication and made my own replication physics on a ball once but blueprints is just naturally cursed with physics

spark owl
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I'm looking to get into c++

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there's only 1 for my game it's the ball

winged badger
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funny thing is you'll need the ball to travel at different speeds on owning client/server/remote clients

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to eat up the lag

spark owl
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yeah I could see how it might create issues but would it still not be better than massive input delay?

winged badger
kindred widget
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Personally, input delay is better than bad prediction.

spark owl
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how does rocket league do it then? "fake" physics engine?

kindred widget
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At least with input delay, you know you haven't kicked the ball yet and you can start adjusting your gameplay to account for it. Bad prediction is what breaks console game controllers because people see themselves kick the ball on their own screen, but on the server it never happens.

winged badger
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shitton of custom updates

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i would guess

spark owl
#

so is your general opinion that i'm fucked? there's no way to make it work well? There's gotta be a way right?

winged badger
#

with blueprint, network and physics

#

yes

spark owl
#

well what if I restarted the project as c++?

kindred widget
#

Personally, for soccer, I'd use a PMC actor over physics anyhow.

thin stratus
#

That's not the point :P

spark owl
#

what is a PMC?

thin stratus
#

The point is that you need to know what you are doing to solve something like this.

kindred widget
#

Projectile Movement Component.

winged badger
spark owl
#

well shit where do i learn?

thin stratus
#

Tutorials, paid Tutoring, School, learning by doing.

#

Also that's nothing you will learn over a few days or weeks.

#

Some of us are here for years and wouldn't tackle that

#

So start smaller maybe

#

And give it time

#

Rocket League has a group of experienced programmers that are past the point of learning the basics and can adapt to solve a problem they are facing.
You are still learning and you don't even know all the tools available to you to tackle this

#

Don't want to discourage you, but this is most likely too much for the start if you have so many questions.

winged badger
#

only way for it to be a harder/worse starting point would be if it was somehow a MMO ontop

kindred widget
#

"Boy, I don't even know how to tell you that you don't even know the things you don't know. You know?"

thin stratus
#

Yeah it's like trying to build a 120 room mansion while not knowing how to get a nail into a wall.

spark owl
#

so there is no solution to the input delay then that is feasible?

winged badger
#

that is far from your only problem, its only the one you see right now

#

there is a solution that is feasible, but it requires serious skills when physics is involved

spark owl
#

would u be able to solve something like that?

winged badger
#

yes, but i've been programming for 15 years

spark owl
#

could I perhaps hire you to do it?

winged badger
#

no

#

there is the other side of the problem

#

people who can solve that kind of a problem usually have their schedules full

spark owl
#

I would imagine so

kindred widget
#

To be fair though, like I said before, sometimes it's less about "How" and more about "Can", or "Should". Input delay is there for a reason. Travel time. You can do stuff locally on the client but that doesn't mean it'll happen that way on the server, and it may give players a bad impression about what is happening in their game.

winged badger
#

i don't even do freelancing to begin with, maybe Cedric can offer you extra insight into that

thin stratus
#

I don't touch that stuff anymore

#

I had my fair share of Network, Physics Clients and it's not worth the headache haha

#

One thing is though that this ball should not be a physics actor to begin with

#

You "can't" do multiplayer with actual simulated physics in UE4, unless Chaos offers a better solution

#

using the PMC is a valid idea. So one has to fake the bouncing and what not via vector math

#

PMC doesn't handle prediction though, only interpolation iirc

winged badger
#

i tried the bouncing with thrown grenades in MP once via the PMC

#

it was... not pretty out of the box

thin stratus
#

I think one thing that isn't clear with the PMC is that you have to supply an interpolated component

#

So the mesh basically

#

If we ignore the fact that the grenade spawns delayed due to being replicated that is

#

Predicted Actor Spawning is something I would love to have solved engine-wide ;_;

winged badger
#

its doable, but

#

getting them paired and replicating isn't really trivial

thin stratus
#

Yeah, that's why UT does it ugly

#

"Spawn predicted local copy. Spawn Server copy. When Server copy replicates, somehow find the local copy and destroy it." or so. can't recall

#

Or they interpolate the local copy to the server location or stuff like that

winged badger
#

if you make the engine think its loaded from package

#

it will pair the server copy to local copy

#

plenty of stuff can go to shit along the way though

thin stratus
#

Yeah you can spawn it on the Client and the Server and connect them to each other as long as they are stably named.

#

But you are not allowed to send any packages until that is fully setup

winged badger
#

and if you do, they will never pair

#

net addressing will still work

#

but NetGUIDs won't get ack'ed

#

ActorChannel won't open

thin stratus
#

Hm. I know I'm doing that with Components that are spawned runtime, Probably different for Actors.

winged badger
#

we spawn an entire level proceduraly on server/clients separately

#

then network it after the fact

#

but none of the Actors are allowed to replicate for a client before that client and the server finished the procedural generation completely

#

clients don't expect a scenario where they get a package for an Actor with static NetGUID that they don't have instantiated

finite kettle
#

@winged badger @thin stratus If I wanted to learn how these things are done and works (actors net pairing etc..), where would you recommend start to reading? NetDriver or Actor class?

winged badger
#

first step is to understand the unreal docs for actor replication flow and net addressing completely

#

most of the relevant engine code is in UPackageMapClient iirc

spark owl
#

Is there somewhere I could find someone to hire to implement a system like the one I need?

#

it seems very specific and difficult so I imagine I couldn't find someone to do it on fivver lol

finite kettle
winged badger
#

yes

#

its not super useful as web documentation, but its a great TODO list of things to understand before you go into something like this @finite kettle

thin stratus
spark owl
#

ok I will look through them. ty

spring swift
#

My problem involve the replication part. I haven’t been able to get that right. Right now it works for the clients only
I can’t seem to replicate it across all clients without issue
At first I tried in the player controller and had no luck. Then I extended it too the game mode
That just got over complicated
I assume I need to just tell the server to update his Boolean and then he can update everyone else’s

spark owl
#

@thin stratus how does one post a contract job?

thin stratus
spark owl
#

ty

winged badger
#

what are you trying to replicate @spring swift ?

#

GameMode doesn't replicate at all, and PCs replicate only to their owning client

#

so if you're trying to use either to replicate a state to simulated proxies, you're doomed to fail

spring swift
#

lol yeah im beginning to see now haha

spark owl
#

@thin stratus could I dm you and ask some more info about my problem? I'd like to show you the game privately and see if maybe there is something else I can do to improve the issue im having

thin stratus
#

No sorry, I have no time to provide that kind of help

spark owl
#

ok

upbeat basin
#

What might be a reason to get ESocketError::SE_ECONNRESET on my FSocket? I'm using FSockets on both my client and gameservers to communicate with a master server. I never had this issue on client side. But on my gameserves sometimes (I have no idea how or when) the FSocket disconnects with the above error code. I also never witnessed it happening during the middle/end of the game, it's always happening on the startup after I connect to the socket.

polar wing
#

Considering reverting back to my custom system, but I'd prefer to use the official method for forward compatibility in later engine versions.

mighty zinc
winged badger
#

assign it suring handlestartingnewplayer

#

playerstate

main skiff
#

hellow people 🙂

im new to unreal and working with BP.

i want to "ServerTravel" between different Levels using the CollabViewer template.. in the documentation they only explain how to change the default_loaded map.

but i have to jump through 5 levels with 2 VR-players.

if i use "open level" as i usualy did in single player the players open the new level alone.

since i watched this:
https://www.youtube.com/watch?v=s9OOq57CkxE&t=453s&ab_channel=ElliotYun

im pretty sure that i have to add some stuff in the "gameinstance" and the "playercontroller"

but i have literally no idea what and where exactly..

maybe someone can help?

YouTube
Elliot Yun
[UE4 - BP Tutorial] Multiplayer Session - Level Travelling [6/7]

Download Tutorial Project: https://goo.gl/QkFYqk

▶ Play video
red salmon
#

Can anyone tell me how to make an actor that interacts with a player affect only that player's specific variables, for example i have a number that increases each second while in a specific zone and that number to increase just for that one player that entered the zone? (I am very new to multiplayer, and barley know much)

rocky topaz
#

it's not?

round yew
#

I tried adding voice chat on a dedicated server but that doesn't work, do there are extra steps than this?

📎 unknown.png
#

I also set these variables in the configs

DefaultEngine.ini
[Voice]
bEnabled=true
[OnlineSubsystem]
bHasVoiceEnabled=true

In DefaultGame.ini
[/Script/Engine.GameSession]
bRequiresPushToTalk=false

waxen socket
#

Hello, I've been reading about overlapping and applying damage on the server vs on the client and wanted to ask for some advice.

A method I frequently see recommended is to call overlaps on both clients and on the server. This way, the players get the most immediate feedback. In this method, if an enemy dies on the server and is already dead and hidden on the client, you can just destroy it quietly.

My question arises from a case I can imagine where the enemy is killed and hidden on the client but on the server, the player missed and so the enemy is actually still alive.

Is this a problem I should be wary of? I'd appreciate any advice on the subject.

Cheers.

silent valley
silent valley
rocky topaz
#

should I make a map with player IDs defined by the server with a playerstate linked to it?

#

there is no 0, 1, 2, 3 counter for players in a multiplayer game as far as I've managed to find out

waxen socket
silent valley
waxen socket
silent valley
#

If the client predicts they have hit, but the server says no, then it will still look to the client like they hit them (and you flash them red or whatever) but no death would happen.

waxen socket
#

And players prefer that happening now and then to waiting for the server to tell them they hit?

#

I guess I'm just worried about giving immediate feedback on hits but then making the clients wait to see the enemy die.

round yew
#

Because you don't use the session nodes to join a dedicated server

silent valley
#

It's a limitation of the Unreal Voice chat system.

#

or you could try something like Vivox

#

which has its own concept of chat sessions

round yew
#

Do you have a resource about making the dedicated create a session and joining it with a client? Right now I always joined my dedicated server with the console command

silent valley
#

are you C++ or BP btw?

round yew
#

BP

#

I installed the Advanced Session plugin if that can help

silent valley
#

I'm sure it can. You need to call CreateSession() when your dedicated server starts. In C++ we can override GameSession::RegisterServer() but I don't know where you should do it for BP.

#

Follow the example in that website I linked you

#

worst case you could put the call to CreateSession in your GameMode perhaps..

round yew
#

I've read on the unreal forum that the dedicated server creates a session automatically when it does the registration so it's not needed anymore

silent valley
#

is that right... 🤔

round yew
bitter oriole
#

You'll need to reload it in some way

#

Unreal used to have a %game=/path/to/gamemode URL option

#

Not sure if that still works

#

Overriding the game mode should be doable

#

Though you can simply have your player controller detect single player and switch to displaying the menu

silent valley
round yew
#

hmm ok I'll give it a try

silent valley
#

Then change your clients to load a 'front end' map, call Find Sessions and then Join Session etc

#

You have to setup either Null or Steam OSS for this to work

round yew
#

Yes I'll try that way, I was persuaded it was only required for listen server

silent valley
#

if NULL then your clients / server must be on LAN

#

definitely doesn't work for dedicated without Session - I already went through this pain 🙂

round yew
#

Lan? isn't a local server? I'm uploading my dedicated server on AWS

silent valley
#

oh.. you're gonna have a lot more pain then

round yew
#

😅

silent valley
#

I couldn't find a way of joining a NULL OSS server session via IP address

bitter oriole
#

You don't join with IPs when you have sessions

silent valley
#

I ended up setting up Steam OSS which was a bit fiddly

#

making it work with linux dedicated servers in particular

#

Depending on your game/use case you might not even need sessions. It might only be the Unreal voice chat that needs sessions. I evaluated the built in chat and found it was... not good.

bitter oriole
#

Yeah

round yew
#

Ok so using CreateSession in the gamemode is not worth a try?

chrome bay
#

There's a GameSession class designed to interface with sessions at the actor level

silent valley
#

e.g. are you using Steam for game distribution?

round yew
#

No, it's for a Quest2 game

#

I mean Oculus in general

silent valley
#

oh, in that case I don't know - maybe setting up Oculus OSS is easy 🤷

#

and maybe the Oculus voip is good too

round yew
#

In any case, if I understood correctly, this requires some c++ code

silent valley
#

No, as I said if you use the Advanced Session plugin you can just call CreateSession from your dedicated server when it starts, all in BP.

round yew
#

oh sorry, I'm mixing everything

#

Thanks, I'm gonna give a try!

rocky topaz
#

I still didn't find how I would map players to some kind of player ID to implement a turn based system, any suggestions would be appreciated ;-;

meager spade
#

PlayerState can hold an ID that game mode gives the player

#

then that's it, they are mapped

rocky topaz
#

ah perfect, how do I know that ID?

potent cradle
#

You could use the steam id if you have steam @rocky topaz

#

Or assign some random id to a player, that is remembered

rocky topaz
#

I want it to be easy to understand so like I could tell in the UI that it's player 1's turn

#

I guess it has to be implemented in the playerstate then

#

and then how would I get the controller of the player from the ID or the playerstate? I couldn't figure a way to get the controller

#

would GetOwner work?

gloomy tiger
#

Hey guys.

We are using AIMoveTo to move our AIs around. Turns out, having 50 AIs, we're suffering massive lag. I wonder - how would you improve that? I mean, the issue isn't moving the AI itself, but those AIs are following players that are moving all the time, so the server is replicating its rotation so often it lags.

#

One idea I had, probably far from being good, is to spawn these AI and replicate their Target only (the target is the player they'll follow.) instead the entire moving mechanism, and perhaps handle movement client-side only. It's important to emphasize that Player's movement is always being replicated, hence clients would know how to move AI.

potent cradle
#

I keep a map of SteamIDs with their PC in the gamemode, personally

rocky topaz
#

@potent cradle I'm thinking about doing it on InitGameState and I'm actually not sure that PlayerControllers are visible there

potent cradle
#

I use postlogon

rocky topaz
#

when is that called?

potent cradle
rocky topaz
#

the issue is that I need to make sure I'm iterating through the clients one by one

#

OnLogin would execute things whenever the client logs in right?

potent cradle
#

Right

rocky topaz
#

is it called when a level is loaded?

potent cradle
rocky topaz
#

I see

#

perfect, thanks!

steel vault
#

Maybe one day they will sure up the UE4 VOIP system, but right now, it's lackluster from what I can tell.

open wadi
#

Stupid question, but I'm new here: I have successfully compiled UE4 and used it to build a dedicated server. Clients can connect from within the LAN and from without. Life is currently good.
Now, when i make changes to my project and package it.... do I need to go back and build anything from Visual Studio again or is that generally a once off?

round yew
steel vault
#

So basically, free.

#

Very unlikely any indie dev will end up exceeding that, and if you do, you should pay them anyway 😉

#

I haven't finished implementing their SDK into my game, but so far the options and examples they have are thorough and very good.

round yew
#

Interesting, I'll give it a try. Thanks!

open wadi
#

Am I assuming correctly that a textRender component in a character pawn needs to be set to replicate as well for it to display its text properly to other clients?

frank birch
#

is there a multicast that runs on everybody BUT the owning client?
Lemme explain: I have a movement that is triggered by user input, I trigger an RPC and that triggers a multicast so everybody sees the change.
when there is lag, the user does the input but won't see the effect until the RPC arrives and the multicast returns, so I hotwire the effect immediately and then fire the RPC. Howeeeever the RPC then returns and the owning client repeats the effect again 😦

What is the correct approach to have the player see the immediate effect and then replicate it through the network for everybody BUT the owner user?

hollow eagle
#

Just check if you're the owner inside the multicast.

weary badge
#

Hey everyone,
does anyone know, why I can't read my player controllers after a seemless travel ?

open wadi
weary badge
#

@open wadi when the players enter the lobby, their controller gets saved in an array. after the seemless travel, I tried using a logic with that array, but the values couldn't be read.
I'm using the get or find (dont remember which of the 2 it was) to get a specific controller from that array

open wadi
gloomy tiger
open wadi
#

Im really new, so i have no clue if that is remotely what you are experiencing, but its worth a go.

frank birch
open wadi
weary badge
#

@open wadi yeah, my whole knowledge is like 3 months old
Thanks for that information

open wadi
#

I think Game Instance persists AND is unique to each client, so you could try adding whatever information you want to that before connecting, then getting that information and reapplying it to the new controller upon BeginPlay -- but again, i am new.. so that may be the least efficient or MOST WRONG way to do it, lol.

#

Someone else more knowledgeable might want to intervene here in case i am giving incorrect advice.

open wadi
#

Ok, when my players join the dedicated server, they can each see their name above their heads properly, but other clients see the TextRender's default "Name". What might I have overlooked?

polar wing
# mighty zinc Whats the error

Hey! Sorry for the late reply. Mostly just curious what the optimal way to do it is, particularly when it comes to corrections and whatnot. There seems to be quite a few new elements to extend. I'll keep figuring it out, though.

mighty zinc
winged badger
gloomy tiger
#

What you mean?

winged badger
#

i mean it just needs its movement component to replicate movement

#

and it works

#

client doesn't need to know much else

lone shale
#

ue4 steam subsystem spacewar failed to create session, fixes? or do i gotta publish n pay 100

eternal canyon
#

no

#

u dont

lone shale
#

is their any game thats not cracked and using their own servers + steam subsystem, use steam subsystem spacewar?

spring swift
#

Man oh man im getting close, i got all the replications so when boolean is true for client it sets server true and other clients true, so now i need the button to work with it

dark edge
spring swift
#

I did try that but the Player State cant talk back to the Widget, so im trying to get the widget to take the infomation from the playerstate

#

but even that isnt working well

#

it seems tho the widget refuses to grab any info from the player states

#

it will happily send info

dark edge
#

Choose whether you want the master variable to live on the player controller or player state, and have one drive the other

#

What's the boolean, ready?

gritty pelican
#

who can help? i have error with PlayFab when i try to build WindowsServer, all was good in VS2017 but now i have error

gsdk.h(77): error C2039: 'runtime_error': is not a member of 'std'
functional(31): note: see declaration of 'std'
\gsdk.h(78): error C2504: 'runtime_error': base class undefined
\gsdk.h(79): error C2039: 'runtime_error': is not a member of 'std'
\gsdk.h(79): error C3083: 'runtime_error': the symbol to the left of a '::' must be a type
gloomy tiger
#

That said, I didn't want to replicate movement.

meager spade
#

massive lag with 20-30 ai?

#

we run 120 ai with no issues

gloomy tiger
#

Are they following players that are constantly moving?

meager spade
#

yes

gloomy tiger
#

🤔 what now

meager spade
#

i did spend a lot of time optimizing the AI tho

#

reduce down the update frequency

#

only tick full speed when near players, that kinda stuff

gloomy tiger
#

Yep, we have it at 1... Although that quite addresses the problem, they look clunky when rotaating.

meager spade
#

1 is terrible

gloomy tiger
#

What you mean by 'only tick full speed'?

meager spade
#

oh we do a lot of optimizations

#

i can have 150 ai in the game only use 1ms game time

#

if they are off screen

gloomy tiger
#

hm, gotcha - i believe if you have 150 on screen, then the scenario changes right? with 4 players connected and all...

meager spade
#

ofc, but that never happens

#

in our game at least

#

we have FOW, so we use that

gloomy tiger
#

uhum, gotcha - yeah, we don't have fow

#

and it's a zombie game so we expect to have lots of them on screen...

#

perhaps some gameplay changes are required

meager spade
#

yeah but in my little pet zombie game

#

4 player, i have 100 zombies

#

and no issues

#

tho i cap to only 60 max in the level at once

#

i have had 100 for testing

#

so what lag are you getting? is it game lag or networking lag?, Listen server or dedicated server?

#

have you ran the profilers? used Insights?

dark edge
meager spade
#

Traces

dark edge
#

How many traces per frame do you end up running? I'm using line traces too, I had worked on a algorithm that helps tear down the amount of traces but it ended up being too unwieldy for design when the alternative is just to slam traces out and see what they hit

meager spade
#

think its 100, but i am not sure, @tawny kernel we-wrote it

dark edge
#

Oh that's pretty small. You must be doing some sort of optimizations on your Trace count or do you only have one vision viewpoint?

meager spade
#

do you run your traces off-thread?

dark edge
#

Right now I'm prototyping and run like 1,000 in thread and blueprint LOL

meager spade
#

:/

dark edge
#

, but yes, it'll eventually be moved to a subsystem and probably be threaded.

#

Even a thousand per frame in blueprint it doesn't even blink at

meager spade
#

yeah, we do most of the calculations and traces offthread

#

AsyncTrace is ran off-thread

#

const bool bRunAsyncTraceOnWorkerThread = !!AsyncTraceCVars::RunAsyncTraceOnWorkerThread && FApp::ShouldUseThreadingForPerformance();

dark edge
#

Yeah I'll definitely look into it if I end up needing to come up with some performance. I'm still brainstorming on how I'm going to actually use the data, this is where I'm at so far.

#

For gameplay purposes I do an edge crossing count to check if something is within any polygon or not

winged badger
#

@dark edge we do a significant amount of blur

#

so we don't need razor sharp edges for fow

dark edge
meager spade
winged badger
#

we have a kernel blur array, basically this

TArray<float> USolsticeUtilityLibrary::CalculateBlurKernel(int32 NumberOfElements, float CurveParameter)
{
    TArray<float> BlurKernel;
    float Sum = 0.f;

    const float e = 2.71828f;

    for (int32 i = 0; i < NumberOfElements; i++)
    {
        float Element = FMath::Pow(e, (i * i) / (-2.f * CurveParameter * CurveParameter));
        i == 0 ? Sum += Element : Sum += Element * 2.f;
        BlurKernel.Add(Element);
    }

    for (float& Element : BlurKernel)
    {
        Element /= Sum;
    }
    return BlurKernel;
}
#

coming to a sum of 1

dark edge
#

It basically uses two render targets. Each frame, Target two is copying into Target one with some decay, visibility triangles are drawn to Target one, and then Target one is blurred into copy two. Has the effect of the blur spreading out over a couple frames to get nice and soft.

winged badger
#

so if a... texel is visible it adds the middle (highest member to its own alpha)

#

and 7 lower value elements for 7 texels to its left and right

#

then we do the same thing vertically

#

and multiply the 2

#

then apply the PP blur ontop

meager spade
#

not built in, no

#

can you make? sure 🙂

winged badger
#

its trivial

meager spade
#

PlayerState

winged badger
#

GameMode, + PSs

#

GameMode needs to control and assign a team each player

meager spade
#

GameMode knows all the players

#

it also knows all the teams.

winged badger
#

its not a callback

#

HandleStartingNewPlayer best

dark edge
#

@winged badger how do you do a vision lookup for gameplay?

winged badger
#

you have controller and PS there (via controller)

#

and parent spawns the pawn

#

parent call of HanbdleStartingNewPlayer

#

its a BlueprintNativeEvent

#

we have actors(components) that can pierce fog of war

#

the worker threads throw traces for them, construct a smaller texture for that particular actor

#

then another worker pieces bunch of partial textures together for final RT

dark edge
#

Do you use the fog of war data for gameplay purposes at all or just for visualization? I guess what I'm getting at is, is checking if something is visible a check versus polygons or a check versus pixels? On the cpu, not for rendering

meager spade
#

we use it for gameplay

#

Monsters for example are not visible in FOW

winged badger
#

you would never allow gamemode to assign the red team to 5th player to start with

meager spade
#

your higher level system should limit the game to 8 players

winged badger
#

then some RPCs fly around, GameMode has to approve of the player's selection

meager spade
#

say 6 players join, and you have 2 spare spots, when the game starts, you can spawn 2 bots to fill the spaces.

dark edge
meager spade
#

GameMode will make sure the teams are balanced.

#

players get spawned in HandleStartingNewPlayer.

winged badger
#

its fow component can access the fow manager/RT

#

which can translate the world position to pixel value on RT

meager spade
#

MatchStarted != HandleStartingNewPlayer

dark edge
winged badger
#

think of HandleStartingNewPlayer as a point in the game setup where engine spawns the pawn for that player

meager spade
#

we cache it

winged badger
#

we stash it into an array we can read easily when RT updates

dark edge
#

No I think about it, I better not even bark up this tree because I remember that I only draw the render Target for the local player, so the true authoritative and complete source of vision data is the polygons.

meager spade
#

for example, we have an RT, which maps buildings (for adjusting atmosphere/lights/etc)

# 
    if (MapTextureRT)
    {
        const int32 OffsetX = static_cast<int32>((HelperVector.X / static_cast<float>(LevelSizeX)) * MapTextureRT->SizeX);
        const int32 OffsetY = static_cast<int32>((HelperVector.Y / static_cast<float>(LevelSizeY)) * MapTextureRT->SizeY) * MapTextureRT->SizeX;
        const int32 Index = OffsetX + OffsetY;

        if (InsideBuildingArray.Num() >= (Index + 1) && (Index + 1) >= 0)
        {
            return InsideBuildingArray[Index];
        }
        return 0;
    }```
winged badger
#

our fow managers operate independently on each machine

meager spade
#

we just do a simple look up like this

winged badger
#

same as minimap

#

no replication whatsoever tied into that system

#

if something is supposed to be shown or be affecting fow

#

it will be a networked actor

#

that has components to hook into fow/minimap

dark edge
#

Yeah I understand all that and my system is probably very similar. I'm just kind of mind-blowing that you happen to use the text or data for gameplay purposes without running into blocking issues. Last time I looked into it, it was a gigantic pain in the ass to get the render Target data into the CPU for gameplay. But it's an honest you, I'm keeping my polygons as the gameplay vision data anyway.

meager spade
#

its not really that hard

dark edge
#

Wouldn't y'all's system be a no-go on a dedicated server? Or would you use geometry in that case

winged badger
#

its would run pretty much the same on dedi

silent frost
#

im trying to make this montage first play till the end on server, and then on client. What am i doing wrong? Do i have to send it to playercontroller?

📎 FunderBP_04-02-2021_01_57_33.png
winged badger
#

except dedi wouldn't run fow calculations at all

meager spade
#

@silent frost what is FunderBP?

#

is it owned by the player?

#

if not then you can't use Server/Client RPC's

silent frost
#

i just placed it in the map

#

its an actor

meager spade
#

if its replicated, you can use a multicast

silent frost
#

okay, but its spawned before the player joins

meager spade
#

then you need to delay it, or handle that.

#

but i don't get what you are doing tho

#

BeginPlay is called on Client and Server

#

so why the gate?

silent frost
#

well, the thing is i want the animation of it to be in sync between server and client

meager spade
#

that will not happen

#

getting perfectly synched animations is not easy

silent frost
#

well the plan was to start each loop with a note from the server

#

it doesnt have to be perfect

#

Any way to start an animation on the client side, from the server

#

its fine of its not perfect

#

so the animation will be completely out of sync, with the collision handled by the server.

dark edge
#

Can you manually insert time into an animation in animbp?

silent frost
#

or get the animation start position from the server?

dark edge
#

No that'll never stay in sync, frame rate differences or slight timing differences will accumulate

silent frost
#

oh yea

meager spade
#

yeah that stuff is a pain

dark edge
#

I don't know the whole time about animations but can't you just plug time into a clip manually?

meager spade
#

we use a system to sync montages, using a catchup

#

but its not perfect, but pretty close, but its only really doable in C++

dark edge
#

If you can't manually insert time into animation, f it, make a blend space with four poses

silent frost
#

well, my game is pretty chunky, so for now im not going for perfect. But manually inserting time, in the blueprint, would mean the cvlient gets its framerate from the server somehow, on that animation?

silent frost
silent frost
dark edge
#

Not frame rate, time in animation.

#

However you do it, have one float driving the animation on both sides.

#

Think of it as crankshaft angle.

silent frost
#

and then call, an event from the server to go from one pose to the next

dark edge
#

Or just skip the animations, rotate the crank, and ik the rest

dark edge
silent frost
#

yea, i did it in blender, and exported the animated fbx, but should probably have done it in ue4 to begin with?

dark edge
#

There's a million ways to skin a cat,

silent frost
#

oh its constaly updated

#

Thank you, this makes so much sense

dark edge
#

Yes it's just a replicated float.or you can just have a motion replicating scene component that spins, however you want to do it.

silent frost
#

Thanks this is a way better method 🙂

#

ill try this out, thanks a lot

silent frost
#

From where can i cast to the animgraph?

livid seal
#

Character > Mesh > Get Anim Instance > Cast to your animBP

#

I still can't figure out how to replicate pausing a montage. The montage plays on all clients just fine, but then I try to pause it using the same logic and doesn't work. Works on the server, not the clients.

#

Been messing up my project trying to get it to work and now I only have created some more issues and will need to revert back, but want to figure out how to get them to pause before I revert my project and implement it.

#

I really thought this would be basic. Montage multicasts to client, which is called by the montage server event. I then have notifys that are handled by the server only. Certain notifys may trigger the montage to pause. Still running on the server, I then multicast the montage pause, but it doesn't work.

livid seal
#

Got it working now. I guess I can't save the anim instance to a variable to use later? Wasn't getting any errors, but decided to "get anim instance" from the mesh when calling pause montage. Suddenly started working. Now to fix what I messed up, or revert project a few days.

#

Actors placed into a level run their begin play for server and all clients automatically when game is started?

#

I guess I can just print string on begin play to test, haha. And it does do both server and clients, cool. Thought I might have needed to multicast some variable sets there when I was having the montage pause problems, lol.

livid seal
#

Why do I get no prints for Melee when I run with dedicated server? Uses the same Hit Event as Projectiles, but you can see those prints show up. Melee works fine with multiplayer when using a listen server though. Edit: Notice the awesome montage pause at the 27 second mark, which works great now, even with dedicated server. 😁

📎 UniversalMonster_DedicatedServerProblem.mp4
spark owl
#

does Repnotify basically only replicate variables once they are changed? so in other words if a variable doesn't change for a long time it won't spend any proccessing/networking power replicating it?

meager spade
#

It will always be checked but not replicated if it's not changed.

#

That is any replicated property not just repnotify

spark owl
#

so what is the purpose of repnotify then? is it to connect custom events so when the variable changes it will call whatever custom event you connect to it

#

is there any decrease of bandwith usage by using repnotify?

hollow eagle
#

The point of RepNotify is to have a function called whenever a replicated variable changes. It has nothing to do with bandwidth.

#

Replicated variables already aren't sent if they don't change.

spark owl
#

ok i understand

#

ty for info

livid seal
#

Or more like this, since I need to set it dynamically from a component.

📎 unknown.png
winter ore
#

Hi! It is possible to host a lobby in a player and if that player leaves transfer the control to another?

twin juniper
#

how can i do crossplay in my game? @here

twin juniper
thin stratus
#

I doubt there are any detailed tutorials. Also please don't try to tag every one in this channel or similar :P

thin stratus
steady cape
winter ore
steady cape
#

I think too

winter ore
thin stratus
#

Generally speaking, nothing really stops you from connecting to a PC hosted Server with a Console.

#

But most subsystems are per platform

winter ore
#

@thin stratus do u know if it is possible to combine this plugin (host migration) with epic online services?

thin stratus
#

So if you want true crossplatform play, you need a Subsystem that supports comminucating between all of them

#

No, I do not.

#

I have not used that Plugin

#

Neither do I believe that it's a feasible solution

#

You would need to research a bit, how that Plugin actually implements it

#

So that it's not just closing the connection and before that sending a huge save file across the net

#

Cause that's not really a good idea :D

sharp kestrel
#

Is it possible to get the number of players online and hosted sessions? I'm currently using AdvancedSessions plugin and displaying this info on the main menu would be helpful.

bitter oriole
#

Not through sessions AFAIK

#

Steamworks might expose the information

sharp kestrel
#

Alright, I'll give that a try. Cheers.

potent cradle
#

You could just sum the amount of players on the servers you find through your server browser logic

thin stratus
#

Given there is a limit on how many you can find and they are sometimes even regionlocked, that would help much :<

weary badge
#

Hello everyone,
When I try to grab the "old PC" after the event on swap player controllers, I don't seem to be able to extarct any readable information or to communicate with it.
Does anyone know why ?

potent cradle
#

It's something, but not ideal by a long shot

finite kettle
thin stratus
#

It sends a huge save?

finite kettle
#

It sends everything what you mark as Savable

#

Author of the plugin creates some kind of "Savable" interface, where you can define how should actor data be saved/loaded. Then the plugin serialize these data and send it to the new host basically.

#

I explain it a little simplely, but it's basically like this

#

But plugin does not send the data over Unreal networking layer. It uses Steam/EOS/any kind of socket connection (you can specify which one you want use - dont know all options available) and sends data directly over the socket

spark owl
#

@rocky topaz I don't have that on my screen it says enroll for $195

viscid escarp
#

Heelo guys. There is a way to make a OnRep(repnotify) function holding two variables? I mean, the function is called when 2 variables change, instead of one.

bitter oriole
#

@viscid escarp Move the two variables to a struct.

rocky topaz
#

try logging in then opening the link again

spark owl
#

yeah i signed out then back in and it still says it costs $195

#

@rocky topaz

bitter oriole
#

Udemy ?

silent valley
rocky topaz
#

I just opened it in a private tab (no cookies/account signed in whatsoever) and it says free for me

spark owl
#

oh shit

#

that linked made it work

#

i guess the coupon code wasn't applied

#

ty so much

rocky topaz
#

well yeah I said you have to open the link with the coupon code 😅

#

np np

spark owl
#

herp derp 😄

rocky topaz
quick flint
# 
bool AHVS_ItemPickup::IsReplicationPausedForConnection(const FNetViewer& ConnectionOwnerNetViewer)
{
    Super::IsReplicationPausedForConnection(ConnectionOwnerNetViewer);
    return true;
}
#

this doesn't do anything?

#

i'm returning true, but the actor is still visible

#

Shouldn't the actor stop being visible if its not replicating?

dapper spoke
#

Hello, I need to override the class IPConnection, do you know how can I do from a plugin?

quick flint
#

None of these work

#

I want my actors to not be sent to clients

#

based on criteria

#

like if a player is hidden behind a wall, other players shouldn't see us.

#

...

eternal citrus
#

Ok so I have 2 tick functions

#

one changes spring arm length depending on the velocity

#

the other one traces and if hits obstacle it draws an outline

#

in offline mode it works fine

#

no lag

#

nothing

#

but in multiplayer the client's sprint arm starts lagging

#

any help?

chrome bay
#

If so, none of that per-actor stuff works

livid seal
#

I hate it when it is something simple like that. I tore apart my project thinking my code was wrong, but it was correct and just needed that setting.

chrome bay
#

Trouble is though anims are super expensive to evaluate and dedicated servers are usually single-threaded, so you gotta have a real good reason to enable it

#

My advice is don't tie gameplay to animations - especially since server-side they won't be in sync anyway

meager spade
#

i thought notifies fire on dedicated server?

#

as in it runs the montage, but does not update things?

silent frost
#

I disabled Net Load on client, could this be a reason?

fleet shard
#

Has anyone followed the Amazon Gamelift Tutorial in the pinned messages? It's pretty long (which is perfect) so I just want to know if it's worth it really?

quick flint
#

@chrome bay nope

pallid mesa
#

iirc you don't need the repgraph for isnetrelevantfor checks

#

I mean... I'm implementing custom relevancy behaviours and yet I am not using the rep graph

silent frost
pallid mesa
#

no

silent frost
#

ok sorry

quick flint
#

i dont need that

#

im trying to implement line of sight network relevancy checks

#

to combat wall hacking

chrome bay
#

I wouldn't bother in all honesty, it never really works very well in practice

#

You get other problems like, not being able to hear footsteps, not seeing shadows

#

Players suddenly "appearing" long after leaving walls etc.

#

net relevancy isn't usually responsive enough

livid seal
chrome bay
#

Basically just remove collision/animation from the equation entirely - and do queries based on timers

#

It usually feels a lot better that way too

#

Because another issue you might have, is if the server is only running at 20 ticks, it might not be enough timesteps to even get collision to register a hit

#

Just do a query in front of the player, which is timed to line up with the animation time

#

That way it's totally separate to the visuals, and you can tune it however you like

livid seal
#

I need it to be very accurate hit detection. This needs to know which bone it hits.

#

So I need to know the path of the actual hand as it moves to hit a player.

#

Framerate is no problem, since it adjusts start/end based on previous and current transforms.

chrome bay
#

I mean you could hardcode that as well

livid seal
#

Technically, yeah, but then hardcode that for infinite number of attack animations?

quick flint
#

@chrome bay im not willing to allow potential cheating to exist lol

livid seal
#

I am making an asset that is meant to be easy to use and universal for any skeleton.

#

Can't hardcode anything in it

chrome bay
#

It's more of a design thing at this point, but I wouldn't rely on animated collision boxes to do melee myself

chrome bay
livid seal
#

I mean of course it would be better, haha, right?

quick flint
#

@chrome bay but ur solution is to do nothing

#

and thats just not true

#

league of legends has no wall hacking

#

because they dont send data to players who are not within the fog of war area of another player

#

the server literally wont send data to u

chrome bay
#

Right but that's not the same as a LOS test in an FPS game

#

And not forgetting, LOL isn't a UE4 game either

#

A fog of war for a top-down game would totally make sense

quick flint
#

it doesnt matter

#

that doesnt help me to do what i want to do

#

lol

chrome bay
#

What is the actual use-case here? A first-person shooter?

stoic acorn
#

Any idea why this would be adding a different array element than the one that is being removed?

📎 unknown.png
chrome bay
#

Or something else?

quick flint
#

A 3rd person shooter

#

But not really a shooter

#

point is, I want to know why the following functions make no visual changes:
IsNetRelevantFor
IsReplicationPausedForConnection

#

Do I need to manually use OnReplicationPausedChanged

#

to set something as visible or not visible

#

but thats not the same as "not sending it"

#

Now if we can only "Pause" replication, then that would mean that the player would get no movement updates. However, the player would still be able to know the last known location that that player was last replicated at. For that client.

chrome bay
#

Well another thing is network relevancy takes about 5 seconds to kick in

#

The server won't destroy it instantly, because otherwise objects near the edge of relevancy range would be destroyed/recreated constantly and it would hammer the network

#

And I assume of course you haven't checked the "Always Relevant" checkbox

quick flint
#

Time is a secondary problem if I cannot even get it to destroy it at all

chrome bay
#

Just drop a breakpoint in and see I guess

quick flint
#

it runs fine

#

it fires the breakpoint

#

Step 1. Make an actor
Step 2. implement IsReplicationPausedForConnection
Step 3. Click play

#

if you do this on a character, the actor just won't replicate

#

but if something was replicated, and then we stop replicating it

#

it wont be destroyed

chrome bay
#

Was that actor placed in the world or spawned at runtime?

quick flint
#

Placed

chrome bay
#

ah yeah, that's why

#

Placed actors don't get destroyed by relevancy

#

The actor channel closes down

#

But the actor remains

polar wing
#

Got a question about replication graph. Is it something I should be designing around as early as possible, or can I implement it at a later stage when necessary? Kinda wanna hit a public release with the default just to get some test feedback, then properly look into rep graph to improve performance once I get a larger actor count in (if it's necessary, based on performance goals).

chrome bay
#

can def do it later

polar wing
#

Awesome, that's good to hear! I would look into it right away, but it's time I should likely be putting into actually getting a public build out 😂 .

sharp flame
#

Hi, I am Trying to make a Countdown Timer using OnRep notify but the function is not executing: void ATPSGameState::OnRep_TimeLeft() { OnCountdown.Broadcast(TimeLeft); GEngine->AddOnScreenDebugMessage(-1,50.0f,FColor::Blue,TEXT("OnRep")); }

#

I Modify the Time variable inside GameMode

#

but the variable exits in GameState so it can be replicated

#

further more i did Kill Count exactly the same way and it works perfectly

#

only difference is kill count is an int32 and TimeLeft a float

void nest
#

Hello. The node "Set Absolute" seems to be automatically replicated.
Is there a way to disable automatic replication on certain nodes because the "Set Hidden in-game node" does the exact same thing. I'd like to do things locally ONLY, but as soon as these nodes are fired on the server, they are replicated to all clients when the actor has replication enabled. How can I set actors hidden on or change absolute transforms on clients only? https://gyazo.com/b07f9cb19a5315c8f63acc8909d28c7c

Gyazo
Gyazo
chrome bay
#

@void nest it's not the node that's replicated, it's the properties it sets

#

You could workaround it in C++ by disabling replication of those properties, but not in BP unfortunately

void nest
#

Well yes, I figured that, didn't explain it correctly. How can I disabled said properties would be the proper question I guess.

#

Yeah, that's what I thought, But wanted to check if there was an easier way.

#

Kinda sad that these properties are always force replicated. Not sure why that is, it's very important to be able to do things on the clients only IMO.

chrome bay
#

Assuming you don't need anything else on the component to replicate (and if it's not created at runtime), you can just turn off replication of the component

#

Otherwise, you'd have to make a subclass of that component, then override GetLifetimeReplicatedProps and use the DISABLE_REPLICATED_PRIVATE_PROPERTY() macro

void nest
#

I do need many replicated variables and states on the components in question though so turning it off is not an option sadly.

#

Ok thanks that sounds like an idea!

chrome bay
#

yeah ok in that case you'd have to subclass it and disable those properties explicitly, then use that custom component instead

void nest
#

Yeah. For now though I'll just disable the system on hosts. It's a culling system for optimisation, on dedicated servers it must be disabled anyway as there is no distance checking or anything. The only downside is it won't work on client hosted servers, but that's fine as we mainly run the game on dedicated servers. Thanks for the info anyway! 🙂

wise zephyr
#

hey everyone i just set up EOS a few days ago and when testing P2P...I move faster than the other person when i am the client and the other person is the host...But when I am the server and he is the client he moves slower...Is movement based on a tick rate? Is it because my computer is faster than his? Can someone please give me tips

bitter stirrup
#

Hey guys, i've got a problem in 4.25.4.
I've got a 2players, listen server game that i want to test.
When i try to set Play Net Mode as "Play As Client", Number of Players : 2 and Run Under One Process unchecked, my client window is opened before my server window which means the client won't be able to connect and i won't be able to test anything.
I would expect the server to open first, then the client on which i would have control since this is how it worked on previous version.
Am i doing something wrong or is it just a pain to test multiplayer in 4.25.4 ?

odd sundial
#

Hey all!

My UI is only spawning on my server player, and not on any clients. Also doesn't run if I play with dedicated server check.

The above is called on the controller.

Obviously the UI code isn't firing. I've been trying to correct this issue for a couple weeks without success, googled the heck out of it, no dice. Does anyone have any ideas?

📎 UIIssue.PNG
violet sentinel
odd sundial
#

Ah okay so literally just a custom event node that only runs on client, have '

#

On Possess' call that?

violet sentinel
#

yeah, try it.

odd sundial
#

Yeah now I'm not getting the UI on client or server

#

My apologies, I get it on the server but still not the client

kindred widget
#

What is the UI for?

#

It's likely that there's a client side way to have the client add it with no extra replication.

odd sundial
#

The UI is just the normal game UI like... shows health, etc

wise zephyr
#

hey everyone i just set up EOS a few days ago and when testing P2P...I move faster than the other person when i am the client and the other person is the host...But when I am the server and he is the client he moves slower...Is movement based on a tick rate? Is it because my computer is faster than his? Can someone please give me tips

violet sentinel
odd sundial
#

Hmm looks like it

#

@violet sentinel I put a check in to see if the cast fails both characters and it does on the client, but works fine on the server. So it does fail on the client because the cast fails

kindred widget
#

Sounds like your RPC reaches the client before the replication of the Pawn in the player controller. You should make certain with an actual IsValid check.

#

I mean if you wanted a dirty solution, you could just check the PlayerPawn0 in the local client's HUD's tick or a few times a second on a timer. If valid, put up the correct HUD once, then remove it if it ever becomes invalid. 🤷‍♂️ Quite likely a better way though.

odd sundial
#

So I'm doing an IsValid on the player pawn... and yeah it's not valid for clients, but IS valid for the server

violet sentinel
#

yeah, possible. let Client_AddUI call SetTimer on client that checks for GameState and Pawn validity to ensure they're replicated on client then shows UI

I made own native events firing from OnRep_Pawn to track it on client but it is not for default blueprints.

#

dirty but works 😄

mild forge
#

Hello everyone, we are currently developping a multiplayer online game for a school project. The maximum number of online simultaneous players would be 8.

We are currently looking for a free solution to deploy a online dedicated server. We were wondering if it was necessary to use the gaming web services (ex: gamelift, prefab) or if it was possible to use normal remote VM's like AWS EC2, Heroku, etc...

Also we heard that cloud services often had hidden fee's linked to usage. We were wondering if the development of 8 player multiplayer game would result in high fees from these cloud services.

Thank you 🙂

odd sundial
#

Wow okay... I put on a delay and now it works

odd sundial
#

Huh.... Well now there's a separate issue.

If I play on the server, select my character, the UI shows up. If I play on the client AFTER the server has chosen his character, the UI also shows up.

But if I don't select my character on the server FIRST, the UI doesn't show up for the client.

#

@kindred widget @violet sentinel The heck is going on now...?

vivid prawn
#

I'm trying to throw something independently without replication, and set the network setting only "relevant to owner" however it works fine when it execute once, but when there is timer to loop multiple times, client see client, server see clients, BUT clients don't see server!

fallow quail
rocky topaz
#

ah

vivid prawn
#

I mean i can use it multiple time when there is no timer, but when there is timer clients can't see server

rocky topaz
#

so @mild forge @fallow quail I might recommend you using Spatial OS (but it comes with it's own Netowkring stack completely) or you can use the google cloud free trial

violet sentinel
rocky topaz
#

are you sure however that you need hosting for a school project? maybe your school can provide that for you

silent valley
#

If you provision a larger instance and keep it running 24/7 then costs will go up of course 🙂
AWS has 'hidden' costs (pay seperately for all the services you use, bandwidth, etc, etc) but a plain VM at another host should be all inclusive.

fallow quail
fallow quail
rocky topaz
#

depending on how demanding your dedicated server is, you might even get away with a shared VPS for 5$ per month or less

open wadi
#

Hi everyone. I am not grasping something multiplayer/replication related and need some hints/suggestions on what to look into:

  1. Dedicated server, clients have a log in level where they select their name and then enter the IP to connect to.
  2. Each client successfully logs into the dedicated server map and "remembers" their chosen name properly.
  3. Each Character Pawn has a TextRender over their model that shows their name correctly to themselves.
  4. HOWEVER, it also show every other character having the same name as their own when it NEEDS to show the other character's name.
    I am certain there is something simple I am overlooking and others when learning tripped over this as well. What is common/likely reasons you can think of that I can look into?

Thanks.

vivid prawn
#

make sure you replicate the variable that hold the player names

#

also how do you know which player is which? do you get their unique id?

#

player controller hold each player unique id and when you change map it stay true for the player

#

so you can always keep track of their name

open wadi
#

Ooo Thanks. Those look useful and I missed noticing they existed. Thank you.

vivid prawn
#

though you always save their names in the GameInstance, the rest of stuff in GameMode, including it self will be reset every time you change map/lobby

open wadi
#

Yeah i discovered player controllers, player pawns, etc were re-created each time I changed levels/reset, etc.
I Am currently saving their names to game instance when i hit the connect button, then putting it on the player state once its created (currently). I am unsure whether Player State, Player Controller, or Player Character is best place to put that atm. Since Text Render is on Character.. maybe I ought to be storing it there instead.

vivid prawn
#

Player State is the best place

#

so other players can access to it if you need it in some point in your game, e.g. keeping scores/achievements

#

@open wadi

open wadi
#

Thank you.
I thought getting the dedicated server up and running, plus players connecting properly was hard.
Turns out grasping the basics of just showing a nameplate properly is harder for me, lol

vivid prawn
#

they explain the game unreal framework very well.

open wadi
#

Thanks i will read that. I dont want people doing the stuff for me, i wont learn that way.. but this has kept me busy for two days now trying to get it right. I will definitely read it now

vivid prawn
#

yeah, sure, it's 30min video

open wadi
#

it will be worth the time. thanks again

eternal citrus
bright breach
#

@celest sleet and I have been working on networking for our VR game for over a month now and despite everything we've tried online, it is still not working. Is anyone able to talk with us for an hour or so and help us get it working? It's super close, but when a player joins the host, they aren't able to control their possessed pawn, no matter what we do. We're willing to pay $30 if someone can get it working.

open wadi
eternal citrus
#

👍

violet sentinel
celest sleet
#

Am I wrong in my understanding in how inputmode works

terse prawn
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My server executes a function that spawns an actor in the hand of a character. All the clients can see the actor that was spawned but the server cannot see it.
Anyone might have an idea of whats going on?

terse prawn
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I did some tinkering and it spawns the actor but the server does not attach it to the component I want. but the client's do.
Is there a reason for this? and How can I go about fixing this?

twin juniper
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So anytime I want a global sound, I have to tell the server to play that sound?

wise zephyr
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is movement based on event tick??

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is movement based on FPS?

pallid mesa
#

?

long grail
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Hey, has anyone here implemented deterministic rollback in Unreal Engine before?

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I have a fairly substantial budget but want to work with someone who has done this before.

wise zephyr
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is there a netload balancing issues that one must take care of?

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for P2P?

pallid mesa
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P2P isn't natively supported in UE4. + Also, yes.
@long grail is it possible to wait for chaos?

long grail
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What is Chaos

pallid mesa
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The new physics engine of UE4 that enables deterministic rollbacking

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now... that has yet to come to the engine

wise zephyr
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is there a way to test a dedicated server so u dont have to pay for one? development only...looking for just 2 players

pallid mesa
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since the current version of chaos is still in diapers

long grail
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Whats the ETA on Chaos? Development for this would start in march or april

pallid mesa
#

TBA I believe, I'm still waiting for substepping to be a thing

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for the time being I'm using physx

pallid mesa
long grail
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I don't see anything about it being deterministic

pallid mesa
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that's the thing, they are working on it

long grail
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ah

wise zephyr
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so i am having this issue...Where if i am the client i move like 10000mph...if my friend is the client he moves super slow...I have a better spec'd machine and better internet..I get 300mbps internet he gets like 20mbps internet...anyone have an explanation as to why this is?

pallid mesa
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but yeah, it will work along a prediction system that will count with a rewind functionality where you can get deterministic rollback

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which is I believe what you want

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but as you saw I didn't mention "deterministic physics" anywhere

wise zephyr
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can someone please read what i wrote

pallid mesa
#

patience, lil padawan

pallid mesa
wise zephyr
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yeah idk

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the vi

pallid mesa
#

are you using characters? or what are you using?

wise zephyr
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using pawn its a hovering tank and is using force to move

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also it is P2P

pallid mesa
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client authorative physics I suppose?

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wdym p2p? have you modified the engine to support p2p?

long grail
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I don't want deterministic physics tbh, but appreciate the thought

pallid mesa
wise zephyr
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i am using EOSCore plugin...hmmm..i didnt know i had to modify the engine to support p2p

pallid mesa
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because honestly, I don't know if you do use the normal rpc/replicated variables system of vanila UE4

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or something else

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if you are using rpc's and client authorative physics it can happen because your clients run at a different FPSs

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and I assume you aren't running your physics with substepping enabled

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therefore the physics simulation will run slower when you have less fps's

wise zephyr
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thanks vi!

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im looking into setting up an AWS free dedicated server right now

wise zephyr
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guys i linked my fucking github to UE4 and I am still getting 404 not found when i try to download ue4 source to set up dedicated server

stoic acorn
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How can an actor cast to the correct player state to access a variable?

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I'm trying to detect which team a player is on when it overlaps with an actor in the level

soft relic
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You can get a pawn's player state and cast to your PS class to get any info you need

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If im not mistaken you should be able to directly access that by getting player state from your pawn reference

stoic acorn
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ah.. I was attempting to get it from the overlapping Player controller

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are you saying you can get the player state from the On Component Begin Overlap node?

📎 unknown.png
soft relic
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you can cast the other actor to your pawn class, then from that pawn get the player state

stoic acorn
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I'm starting to wonder if I'm setting this up correctly. I'm storing which team each player is on in the PlayerState. Is this correct?

soft relic
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Yeah storing it here makes sense

stoic acorn
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yeah I've been following that

soft relic
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So for a simple approach on what you do, if you cast to your Pawn class after the overlap you can get player state, cast to your player state class and get the team

stoic acorn
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It's a great overview but specific steps are round elsewhere

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So.. leave out the player controller entirely from this step?

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perfect guys.. that worked.. Thanks a lot

teal sundial
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Is there a way to make it so :
Player 1 Host a Game
Player 2 Joins the lobby
If player 1 alt tab the game, the other players doesn't lag
I'm not currently looking to get a server

lilac raven
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Hi all, is there a way to limit the number of players a server can allow to join?

violet sentinel
fleet shard
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hey about dedicated servers. Does anyone know if you still use the server, client and multicast functions? Thanks

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thank you!

granite galleon
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How to make asset ready for multiplayer ?

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I make simple traps