archived-networking

[patent iris]

Curious, can a game use Unet for it's networking , Azure for server hosting, and then steam for inviting/leaderboards/etc ?

[nocturne vapor]

Texture2d texture;
If (IsOwner) texture = card;
else texture = back;

This requires the cards to be owned by the player holding them

[rustic quail]

That's perfect. Thank you!

[sharp axle]

The only issue with this is that the clients all get info about everyone's cards in hand. So it's a possible vector for cheating

[nocturne vapor]

I mean you don't have to sync the card texture, this way it would stay a secret
the back texture is probably in the prefab, because it is constant
the card texture could be loaded just on the owner side
If you would sync it yes, otherwise no

[nocturne vapor]

now it is my turn to need help
I currrently implement modding and want to make the objects work over network
this is my current code:

public void registerItem(ApiItem apiItem) {
        AssetBundle bundle = AssetBundle.LoadFromFile(apiItem.assetBundle);
        GameObject go = bundle.LoadAsset<GameObject>(apiItem.assetName);
        bundle.Unload(false);
        
        go.transform.parent = parent.transform;
        go.SetActive(false);
        
        NetworkObject ngo = go.AddComponent<NetworkObject>();
        go.AddComponent<NetworkTransform>();
        NetworkManager.Singleton.AddNetworkPrefab(go);
}

The actual loading works flawless, but I don't know if the addNetworkPrefab function actually works
Atleast when I want to spawn a copy of that gameobject it only spawns on the host and fails to sync with the client
How is this supposed to be done? Since it is modding I can only add the gameobjects during runtime

This gets called before the NetworkManager starts/hosts a lobby btw
So it should be able to take the new network prefabs into account

[sharp axle]

Is RegisterItem getting called on the clients as well?

[nocturne vapor]

Yes, this i called when loading the mods on, so wether someine is host or client, is unknown

[nocturne vapor]

I tested btw that this works
Had a laptop as host, there the object worked as expected and the editor as client where the object existed, but did not spawn, since it was not in the network prefab list and the server is unable to spawn a network object with id 0

[sharp axle]

I think the game object has to be active and not a child object

[nocturne vapor]

Hmm ok, then I will need to write my own modprefab class surpressing the execution of the rigidbody for example, because it should act as a prefab
Thanks

[sharp axle]

Let us know how that works out. I'd like to do mods myself

[nocturne vapor]

Sure. The hardest part is honestly to just load the data, since unity being unity only allows their nstive load functions like ressource.load in certain folders ;-;
Luckily there are workarounds
Will keep you updated, codemonkeys video about how to do modding is a great place to start. I opted for different systems tho. Json for defining the mod, Moonsharp for lua code execution and unity assetBundles to load objects. This way I automatically have colliders and so on allready configured by the mod creator

[desert lion]

i'm trying to set up Lobby for the first time. If I press play in the editor I can create lobbies just fine. but if i build and run, i can neither create nor join lobbies because i get the error 401 unauthorized. this happens even if the editor is not running an instance of the game - even if only the compiled version is runningm it fails.

what could cause this?

[desert lion]

is this check not enough to tell if auth is complete yet?

private void Update()
    {
        if (!launchedLobby && UnityServices.State == ServicesInitializationState.Initialized)
        {
            if (MultiplayerManager.Instance.isHosting)
            {
                CreateLobby(MultiplayerManager.Instance.playerName);
            }
            else
            {
                JoinWithCode(MultiplayerManager.Instance.lobbyCode);
            }
            launchedLobby = true;
        }

        HandleHeartbeat();
    }```

[sharp axle]

That is initialized and not signed in. You would need to use AuthenticationService.Instance.SignedIn event

[nocturne vapor]

ok the problem is that the networkprefabs seem to get reseted
Solution:
your network manager:
https://pastebin.com/gAH1fxWp

seems to work, the cube is my modded object the main game build doesn't know that it exists

this took way too fing long to figure out

[nocturne vapor]

one small correction: onClientStarted not onClientConnected

[desert lion]

I thought I understood but I can't get it to trigger. this function is called on Awake:

private async void InitializeUnityAuthentication()
    {
        if (UnityServices.State != ServicesInitializationState.Initialized)
        {
            InitializationOptions options = new InitializationOptions();
            options.SetProfile(MultiplayerManager.Instance.playerName);
            await UnityServices.InitializeAsync();
            await AuthenticationService.Instance.SignInAnonymouslyAsync();
            AuthenticationService.Instance.SignedIn += Launch;
            Debug.Log("Starting Authentication");
        }
    }

then this one is simply:

private void Launch()
{
    Debug.Log("Signed In.");
    if (MultiplayerManager.Instance.isHosting)
    {
        CreateLobby(MultiplayerManager.Instance.playerName);
    }
    else
    {
        JoinWithCode(MultiplayerManager.Instance.lobbyCode);
    }
}```

I get the first Debug.Log but "Signed In." never appears and my game seems to hang or something? I can open and close Quantum Console but my own UI buttons stop working. It's weird.

[sharp axle]

You are subscribing to SignedIn after you already signed in

[desert lion]

oh if i'm already signed in there i don't even need the event let me try just calling Launch directly

ahh that worked!

[desert lion]

thank you that turned out to be an easy fix

i love how fixing one problem always reveals new ones lol

[desert lion]

i can get two players into the same lobby but then my ui freezes for some reason with no errors or exceptions thrown lol

[umbral mesa]

Anyone knows How to run the EXE in a cloud server?

[desert lion]

is that a linux server?

it sure looks like one. linux doesn't natively run windows .exes

you'd need either to build an appropriate flavor of linux executable or use some sort of compatibility layer like WINE or Proton

[nocturne vapor]

You need a linux server build

Using wine or proton shouldn't be done for server stuff

[nocturne vapor]

You need to deactivate the ui per default and only enable the local one. The ui will load twice and cause weird problems

[desert lion]

thanks but i don't think that's the case here based on what i see in the heirarchy. there's no duplicate objects. but i did have to disable player input objects on my player characters in a different scene so i think i know the kind of scenario you mean where there's like multiple event managers somehow or something.

also i have to figure out how to show a list of player names lol

[nocturne vapor]

Uhm that is odd indeed, never had ui issues appart from the obvious duplication

[nocturne vapor]

This one is actually easy. If you limit your playername by size you can use the fixedstring datatype. I think that is how it is called and the list will depend on how many players you have and how you manage them.
You can use a networklist, quick and easy, but I generally try to avoid them. What you can do as wrll is you probably allready have player scripts. Add a netvar for the name and construct the name list locally from that

[desert lion]

thanks i'll take a look at that once i get my game to stop hanging or whatever is locking input

it's not even completely locking input, quantum console works

[hexed hatch]

so im using unity lobby system and what i found is when player alt+f4 in the game and stays in lobby the game doesnt remove him from the
GetLobbyAsync() how to make like 5s timeout ti kick the player

[nocturne vapor]

@hexed hatch the same thing got discussed here, hope this helps

[hexed hatch]

i was reading it earlier

this guy had problem with relay

my problem with the lobby itself

[sharp axle]

You can change the disconnect removal time in the Dashboard Lobby Config

[hexed hatch]

it's 120 seconds by default but i waited 15mins no one got killed?

[sharp axle]

Are you polling the Lobby or using Events?

[hexed hatch]

i said the function im using to update the players

GetLobbyAsync()

even whel a player leaves i still find him in GetLobbyAsync()

[sharp axle]

Sounds like a bug somewhere. I would open a ticket from the Dashboard on that

[hexed hatch]

lobby been up for 1 year or more

how is that a bug

i was thinking about making a heartbeat from users with time to check when someone stop sending

and do it all manually

but then i found error while the host get disconnected. then i cant change him or close the room

[hexed hatch]

i fixed it. it was because when u connect two times with same host the sever won't know when u timeout since u'll send both profiles requests with same ip

so it was working

[urban trellis]

Could someone help me understand why I'm getting the error The type or namespace name 'LobbyEventCallbacks' could not be found and none of the lobby event stuff is being recognized even though I have using Unity.Services.Lobbies; and using Unity.Services.Lobbies.Models; in the file and have the lobby package 1.0.3 installed? The documentation page says that lobby events should work for 1.0.0 and up so I'm confused why it isn't recognizing any of it.

[austere yacht]

Are you missing an assembly reference?

[urban trellis]

I dont think I am

[drifting plaza]

if i don't plan on having real-time, server authoratitve anti-cheat, is there any reason to not directly send game updates between clients in an attempt to minimize latency?

[terse mesa]

    public void SetUserText(GameObject player)
    {
        UserText(player);
    }

    [ObserversRpc]
    public void UserText(GameObject player)
    {
        player.GetComponent<PlayerController>().userText.GetComponent<TextMeshProUGUI>().text = player.GetComponent<PlayerController>().user;
    }

    private void LateUpdate()
    {
       LINE OF ERROR -> SetUserText(gameObject);
    }

error: cannot complete action because client is not active

except the error stops after i initialize the client so maybe its not that

[mortal blaze]

Hi I need help to clarify fleets. what is the the difference of scaling and cloud server density? like I tried to increase the min & max scaling but the cpu & ram available for cloud servers is not increasing. what i'm aiming for is to create atleast 80 servers/instances of the game that is available to use but with a good % of cpu and ram. how to achieve this?

[muted crystal]

what network api would people recommend for a Unity beginner on a small scale VR project?
I will not need to have more than 4 players if the project is successful. Minimum I need is 2.
The project itself is not that big, it is just one person unscrewing a bolt on a a car wheel and the other taking the tyre off and putting a new one on.

Photon seems like a good one? But it is in LTS mode. Fusion and Quantum are quite new so maybe I should stick to Photon since there should be a lot of support online?

[nocturne vapor]

I would recommend mirror, it is the biggest one with a lot of ressources, should be good for your project

[muted crystal]

hmm, looks like Mirror only goes up to 2021 LTS.
Editor version shouldn't really be an issue, but that's 2 years old now. I'm having to rebuild a project from 2017 anyway so as long as it's a fairly recent one it's fine.
Which aspects does Mirror outweigh Photon?

[nocturne vapor]

it should work perfectly fine in any newer lts version, they follow the lts release schedule and frankly 2022 lts is not out for too long (june this year)
I personally use ngo tho
Mirror outweighs every other solution in community support, just because it is widely supported and a battle tested solution, you will find many tutorials, docs, blog entries and so on and since this is your priority, I have recommend mirror

Photon seems like a good one? But it is in LTS mode. Fusion and Quantum are quite new so maybe I should stick to Photon since there should be a lot of support online?
If you want to use photon you can do that as well too

Photon seems to be used as one product, their package and their hosting
Mirror and NGO are more a built your own solution kindof thing, so for example you might use the mirror script api but the steamworks transport layer, for dealing with the actual traffic

I personally don't have much experience in anything outside of NGO but I know that concepts transfer between mirror and NGO, I even used their ressources for learning some stuff. Photon no clue, just went with your priority of support

So it all depends on this:
do you want a working 3rd party solution? Photon
do you want a workig 1st party solution? NGO with Unity gaming services
do you want to build your own solution, maybe use steam for lobby hosting? Mirror for the big community behind it
there is no right or wrong here, especially with your small scale project, just pick the networking, that gets you going the fastest
for a new project a new networking solution can be picked, concepts are transferable

it also depends on how good you are with reading docs, the more you can get infos on your own, by learning about the topic and reading docs, the less relevant the community actually becomes, it is helpfull sometimes tho

[muted crystal]

I probably should have mentioned it'll be on a local network as well

[muted crystal]

I mean reading docs is unavoidable so whichever one has the best readability I guess

[nocturne vapor]

oh this could be a deal breaker for photon then, from what I read I can't find easy ways to do that, I could be completly wrong here tho, but they are mainly focusing on their cloud products at first glance. This could be a thing that is easily fixed and everything else works fine, but I honestly don't know

but I have been reading into it for like 10minutes now, so maybe this is not true

after writing this I immediatly find what I have been looking for ;-;
Ok it is totally possible to self host and do local networking

when you decide to go for photon, report back to me, interested to know how it goes

[muted crystal]

I did see this

so it must be possible but maybe it's not very clear how to do it

[nocturne vapor]

It is described here
https://doc.photonengine.com/pun/current/getting-started/initial-setup
https://www.photonengine.com/sdks#server-sdkserverserver

[muted crystal]

thanks

honestly, there probably is no harm in just doing it on a cloud server like normal despite being on the same local network

might save some time

[sharp axle]

If I remember right, the problem I had with photon is that they still charge you for using Photon Server. It might have changed since I last looked at it though

[muted crystal]

there's a free version that limits you to 20 players

I think it should stay free until you upgrade to more players tho

[modest mantle]

Hey, when can I spawn player prefab manually?
ClientConnected called after network sync, so I can't spawn player here.
I also can't spawn player on connection approval, because net prefabs not ready on this stage.
Maybe I can use some scene event?

[nocturne vapor]

what is actually your goal? why not just have a loader gameobject as a player prefab and that loader handles the player initialization. The player prefabs get spawned correctly afterall

[white igloo]

Hi im using Playernetwork and sum. When i start the game. I dont see the gun from my opponent. What did I forgot to add to the gun? There is already Client Network Transform

[patent iris]

Hi, early stages of creating a networked game, and right now I'm having issues with movement. It seems the client on a local build moves extremly slow, and the jumping is wonky (rigidbody add force) .

What would cause different results between build version and editor version?

Sometimes I can move extremely fast as Host on Editor, but i'm extremely slow and barely moving in client build

[nocturne vapor]

You wil need to describe your setup a bit more

[desert lion]

hey so total newbie question here but I followed a guide to setup lobby and relay and they're working for online multiplayer. but now that relay is hooked up to my transport layer or whatever I can't launch an offline single player game because it wants to connect to relay when I start the host. what settings do I need to switch back to default before launching single player offline?

[fluid walrus]

it sounds like you're still starting the host? you probably don't want to be doing that at all in singleplayer

[desert lion]

by "singleplayer offline" i mean "self hosted on localhost, no external connections accepted". i'm running the same game in singleplayer and multiplayer modes and it wouldn't work if i didn't launch a host even if that host never connects to another client.

but yeah when i try to launch a self hosted offline game it still tries to connect to relay and i get You must call SetRelayServerData() at least once before calling StartServer. and Host is shutting down due to network transport start failure of UnityTransport

what do i have to point back at default values before launching singleplayer to avoid this?

I assume its this?

[desert lion]

yeah turns out you can easily re-enable unity transport by just going

NetworkManager.Singleton.GetComponent<UnityTransport>().SetConnectionData("127.0.0.1", 7777);```

[golden fulcrum]

Hello! Is there any way to connect an external client (ex. Python UDP client) to Unity Transport?
I am trying to use Unity Netcode for Entities which uses Unity Transport. I can successfully connect server/client within Unity, but when I try to use a simple Python UDP client instead the Unity server seems to never catch the request. Would like to use Netcode for Entities since there are no other DOTS 1.X networking libraries afaik.

[patent iris]

This is the only code involved. For some reason the speeds are messed up when running on a client build or host. For example when I'm the Host on Unity Editor, the player moves extremly fast, like I press A to move left and fly off screen super quick.

When I do it on the client build, I barely move at all

[nocturne vapor]

The unity editor is not fps limited but the build normally is and just using the delta time (so the time between 2 frames) of another player is not a good idea. If you want to do it with sever authority to prevent cheating, you will need a different system with client side movement prediction for that to function correctly
For now just move the calculations for the vector to the owner function
so the moveServerRpc only takes tge new position as input, which will still result in terrible gameplay due to latency

But it will work better

not too mention your approach isn't in any way secure either, I could just overwrite the speeds on the client
So yea you completly need to change the approach, depending on what you want to achieve

[patent iris]

Would adding conditional statements within the RPC help? Kind of like , (if speed == (the value I expect) , then proceed?

[patent iris]

Would limiting the FPS help? What if I limited the game to a certain FPS? What can I google to learn more about this process of client side movement?

[nocturne vapor]

No, you system does not work afterall. It won't help your broken system and just look for client side movement prediction. I'm no expert in this topic tho, so can't provide any firther details

[nocturne vapor]

Yes it would, but still, using the delta time of another player is a bad idea and you should never do it

[patent iris]

If the intention is to create a multiplayer game using dedicated servers and server authority, is Netcode for Entities best to use/learn?

[golden fulcrum]

If your project involves Unity DOTS then maybe. If not then I do not recommend, Netcode for Entities is pretty baked into Unity DOTS, which is very different from normal Unity framework.

[golden fulcrum]

Searching online the past 2 days, I think connecting to Unity Transport via an external (not Unity) client may be very difficult/impossible... seems no one has done it.

[patent iris]

noted , thanks

[golden fulcrum]

Oh, I think I figured it out. By default, the Netcode for Entities default driver will use IPCNetworkInterface if client/server worlds both exist locally and is not in build... I really do not like how it switches. Makes it seem that latency is better than it really is local and there are no Debug logs indicating it is using IPC rather than UDP...

[crude stirrup]

In Netcode, can only Network Objects execute server RPCs?

[sharp axle]

Yes. the RPC has to be in a Network Behaviour on a spawned and active Network Object

[open kiln]

Hi, anyone using Unity Multiplay + Photon Fusion, is there a way to make sure Server created a 'room' then only Client joins in?

[radiant flare]

Hey guys. we're just about wrapping up to upload our asset to the Unity marketplace.

It's a comprehensive multiplayer solution including game server hosting, services for players, friends, party play, notification system etc., and on the Unity side fully integrated prefabs that you can just "drop in". The multiplayer game development API we've got is incredibly simple.

I was playing with it myself this week and even I got surprised how incredibly quickly I could take an asset such as the Universal Car Controller and get it up and running with multiplayer. So I wanted to try and show a bit of that in this video.

Would love to get some thoughts and feedback, you can sign up for a free account already and get started at www.bittershark.com if you're interested in trying it out.

[round reef]

help, i have using UnityEngine.Networking; and its still not working

im guessing i need another library

but which one

[hollow adder]

Our game is running ok however we still have some issues during high load on the server.
It is the same problem i initially mentioned. When we reach a certain number of players online ~1400 we start noticing higher latency and some disconnections due to ping timeouts
Looking at server metrics on datadog it shows that we have “system.net.udp.rcc_buf_errors” that only appear when we reach 1200 players and higher. Any idea what might be causing that?
These errors indicate issues with receiving UDP packets, which can result in higher latency and disconnections.
When you observe an increase in "system.net.udp.rcc_buf_errors" when the number of players reaches around 1200 and higher, it suggests that the system's UDP receive buffer is becoming overwhelmed. This can happen when there is a high volume of incoming UDP packets that the system is unable to process efficiently.
In Unity Transport there is a setting that allows me to increase the “receive queue capacity” which I increased from 512 to 2048 at the cost of just extra memory.
After this change we noticed less dropped users, but still observed the errors in the graph
I then increased the capacity further to 8192 which did not help any further.
At this point theres nothing else i can think of to further reduce the error or eliminate them
I think the next point of optimization that will make the biggest difference is jobifying the server code (using Job system in Unity to parallelize handling of incoming packets). There is a documentation page about it in the Unity Transport docs page, but it doesnt go in very much detail and I dont have experience with the Job system myself.
So if you find clear answer for this problem, then let's work together.

[nocturne vapor]

I guess this is way to specific for this channel. In the pins there is a dedicated unity networking server. Maybe you will have luck there
The only thing I can say is I have no clue and wish you best of luck figuring it out, this goes way above my head

[nocturne vapor]

https://docs.unity3d.com/ScriptReference/UnityEngine.UnityWebRequestModule.html
Here you go

[mortal blaze]

has anyone experience ram/cpu spike while the headless build is running on the game server hosting (linux) of unity multiplay?

[rich basalt]

How can I send data from one client to another? or from one client to the server and the server sends it to all clients?

[prisma wolf]

Im gonna check one of my online games to remember how networking works, wait a moment

[rich basalt]

ok xD

[prisma wolf]

I remembered Code monkey has great tutorial for it

[rich basalt]

yeah but its outdated i think

i watched it

a part of it

@prisma wolf is it possible to make multiplayer without all this port stuff?

i heard of the steam multiplayer stuff but does unity has sth like this built in?

[prisma wolf]

@rich basalt I had a problem, I couldnt answer, Im sorry

Its not outdated, I followed his tutorial like two months ago and they worked perfectly. There are some changes in Unity Netcode for GameObjects but not so many

[rich basalt]

hm i couldnt progress any further bc you cant pull prefabs into the list...

but aside from that

i still dont know what prefabs do there

how can i send information

i dont want so send positions

[prisma wolf]

Do you use Unity lobby system?

[rich basalt]

i have no idea what this is

[prisma wolf]

It allows you to create lobbys of a certain number of players and "put information" in the lobby. When you update the lobby in all players, they can read that information

[rich basalt]

"create lobbys" do i need servers for that?

[prisma wolf]

No, Unity ones are free

[rich basalt]

huh?

[prisma wolf]

As long as your game doenst grow really a lot, they are free

I don't know the exact numbers, but you can use their lobbies if not too many players connect to your game

[rich basalt]

that doesnt sound really save

it sounds that they crash and stuff

[prisma wolf]

It is, as long as you dont have thousands of players connected yo your game at the same time

[prisma wolf]

All server might have problems. But Unity ones are pretty sophisticated

[rich basalt]

i dont know about that

[prisma wolf]

Look, all server might have problems, and you cant do anything about it

But Unity ones are so stable

[rich basalt]

ok i will look into that

thank you maybe there are good tutorials

[prisma wolf]

In the lobby video Code Monkey explains it a little

Well, also wanted to say I never had problems with Unity or heard anyone say they had problems

[rich basalt]

ok

can we switch to beginner coding real quick i have a problem that is real beginner like

[prisma wolf]

Networking isn't for begginers, but I think I may could answer it

[rich basalt]

yeah i probably skip this for my first game

but thanks for trying to help

[prisma wolf]

I really hightly recommend you to not go with networking with your first game

Networking makes everything more complex

[rich basalt]

yes its actually my second but my first one in 3d so yeah i wont do multiplayer for now

[prisma wolf]

And there's no a simple way to implement networking

[nocturne vapor]

What data exactly do you wsnt to transfer, there are only specific datastructures you can transer by default. For custom datastructures you need to do some extra work
For example you can't sync ganeobjects

[rich basalt]

forget it but thanks for helping

[prisma wolf]

But you have experience with Unity? Because I have never finished any game but I made some tools and learnt a lot since I started

[rich basalt]

a little bit

but not enough

[nocturne vapor]

At the end of the day no, ports is how the network layer (I think, kinda forgot the names if the iso layer model) works
But your customers don't have to forward ports anymore
There is unity relay, steamworks, epic and many other relay solutions
You can also have dedicated servers

[rich basalt]

ok im not going to do this multiplayer stuff right now but is this unity relay free? and how many players does it support?

is this the lobby thing you talked about?

[nocturne vapor]

I think 10ccu (concurrent users) is free, but not sure. I use steamworks

[rich basalt]

steamworks is 100 euros 😦

and i dont want to invest 100euros in my first game

but yeah i will think about it in future projects

[prisma wolf]

This is all the info
https://unity.com/solutions/gaming-services/pricing

[nocturne vapor]

That is understandable. For me steamworks just has so many benefits that it was worth the 100 bucks. But your goals may differ

Oh wow it is 50ccu

[nocturne vapor]

Alright, but if you need it again here is it anyway
The section supported types has all default types you can share
https://docs-multiplayer.unity3d.com/netcode/current/basics/networkvariable/

[wise fern]

I'm following this video on matchmaking https://youtu.be/XJax6xZTSWE?si=fL1ZU4fHTFpsYFqA and i dont know how to set up the ServerBuild and ClientBuild

[sharp axle]

I would also check out SamYam's and Code Monkey's videos on Server Hosting. But basically for the server you need to change the build platform to Dedicated Server (linux). The client can be windows PC or whatever

[crisp panther]

need help ClassName+<Upload>d__14

what is this?

IEnumerator Upload(string msg)
    {
        WWWForm form = new WWWForm();
        form.AddField("{msg}", msg);
        Debug.Log("Here: ");
        using (UnityWebRequest www = UnityWebRequest.Post("http://localhost:8082/api/name/{msg}", form))
        {
            yield return www.SendWebRequest();
            
            if (www.result != UnityWebRequest.Result.Success)
            {
                Debug.Log(www.error);
            }
            else
            {
                Debug.Log("Form upload complete!");
            }
        }
    }

above called

msg = Upload(msg).ToString();

[mortal blaze]

Hi does anyone know how to use profiler for UGS Multiplay server using their ip&port? i really need it badly.

[silk reef]

How can i pass a reference to another NetworkObject on a client?

without using an RPC

[sharp axle]

You can send it as NetworkObjectReference. But the only other options you have to send it are Network Variables or with a Custom Message Handler

[silk reef]

so its possible to do something like NetworkVariable<NetworrkBehaviourReference>?

[sharp axle]

that should work.

[teal cedar]

Can unity do this? I have network player object. Then I have child named camera root. Now on the ground I have network weapon. Is it possible to set weapon as child of that root? Im using NGO

[sharp axle]

It can. But reparenting network objects is kinda of a pain so I avoid it whenever possible. If I need to attach an object I will create a physics joint for it

[teal cedar]

I have network weapon and network player so..., what should I do?

[sharp axle]

You can give it a go
https://docs-multiplayer.unity3d.com/netcode/current/advanced-topics/networkobject-parenting/

[teal cedar]

Yeah, but the root is fifth child so all those children need to be network object,💀

[spring void]

[Netcode for GO]
Can INetworkSerializable be used on classes or should I stick to structs only?

[sharp axle]

I stick to structs. That makes sure it can be used in RPCs and Network Variables

[livid dawn]

Any one know how to get someone's Meta ID/account name? I want to display their name above their character but I don't know what to write to get that information.

[teal cedar]

That's insane, player is spawned? But his root? Root isn't network object so not possible and if it is then it needs to be spawned too

I have to do this approach, it's a bit stupid but there is probably no other way. I will have network weapon, when player collects it then despawn and instantiate non network weapon and set it to be child of root. All through client rpcs. Does this make sense?

[sharp axle]

I've done it that way too. There is no real need for the sword to be networked after a player picks it up.

[teal cedar]

@sharp axle And then player who is networked controls that sword right?

[sharp axle]

Yea. Unless you are doing something weird where the server is controlling it for some reason.

[terse timber]

Hello everyone, I'm new here in discord channel.
I'm having a problem with Unity networking. I'm using Relay. In the game each player has 4 bullets and they spawn in order. Like everyone else, I have a problem on the client side and not on the host side. The host fires the bullet immediately, while the client fires its bullets through "ServerRpc". This makes the client see that the firing of the bullet is delayed. But actually it fires at the right time on the host side. But the client sees the bullet with a delay. When I shoot in motion, the bullet is not fired from the tip of the gun, but from an empty space to the left or right. I can't figure out how to solve this. The fact that the bullets are constantly changing makes it difficult.
As a solution, I thought of spawning the bullets in OnNetworkSpawn, I wanted to create a pool and use the same ones. In this case, I could not overcome the client having problems accessing the bullets created on the server side. This was an old network project. I used to do it using google play games realtime multiplayer services. Now I'm trying to get it back on its feet. I need some help.
I'm using the client network transform for player prefabs.

[waxen quest]

Hi, I am using Unity Netcode + Relay + Lobby.

Is there a way to access lobby player data using Netcode ulong id?

I want to implement Player Names. Or what's the best way to implement Player name in Netcode

[nocturne vapor]

Do you know a way btw to have it networked when you need it to be, for example dropping it as an item like in minecraft and completly removing the network object part otherwise? So you can reparent

[sharp axle]

It would be two separate objects. The equipped item is non networked Instantied locally. The dropped item is network Spawned with an RPC.
Another option is to just reparent the network object to the root of the player and then have it follow whatever mount point with a follow script.

[sharp axle]

https://docs.unity.com/ugs/en-us/manual/authentication/manual/player-name-management

[nocturne vapor]

I see, I have been avoiding doing it this way, but maybe I could do it automatically with a handler stripping out every networked component of the weapon and thus being very similar to a non networked gameobject

[waxen quest]

Thats actually not what I need. I want to access other player names throught there client id. I am using lobby and relay. I can send playername as data in lobby but How can I access that name with ulong client id?

[sharp axle]

Oh I see, you can't. At least not directly. The Lobby has no idea about the network manager. I just save the player name as a network variable on the player. You could save the client id and player name to a dictionary locally if you need a quick lookup

[waxen quest]

Yes that's what I thought but how the other players name will be sent to others?

Rpc is the only option right?

Player will send their I'd and name to server and server will send to all other. And others will save them in dictionary

[sharp axle]

I use a network variable on the player. Then loop through all the players if need be

[waxen quest]

Ohh so a networked string. How do you loop through all players? Where can we get players list. Because only server can access connected clients list

[waxen quest]

@sharp axle

[sharp axle]

Easiest way is to just FindObjectsByType<Player>(). Can also just have the player object save itself to a local dictionary when it spawns in

[waxen quest]

Yeah. Thanks for the help mate

[patent iris]

When using Client Prediction/Reconciliation, do we need to allow client movement(aka use ClientNetworkTransform) ?

Unable to move my client right now , which I believe is because Server Authority is true still, and I’m not moving client on Server Rpcs.

Do I need to add ClientNetworkTransform and actually have Server Authority off?

Basically trusting the client and letting them move , but the server will correct it the client (reconcile) if needed?

[teal cedar]

You use client prediction if you want all player movement to be server authoritive

[patent iris]

Server authoritative means the client needs to wait for a server response to move doesn’t it?

[austere yacht]

it means the server can override anything the client does and whatever a client does is only replicated to other clients if the server has validated it.

[teal cedar]

Damn, how to do this? How can server instantiate weapon on all players A on all clients machines?

[patent iris]

Thanks, so in Unity terms, do you know if I should attach ClientNetworkTransform ? Basically let the client move freely , but then the server corrects if needed each tick? I’m just confused on how to let the player move first , and not wait on the server’s response

Working on implementing Client prediction and reconciliation, but at the moment only the host can move , client isn’t moving

[austere yacht]

Im not sure how exactly the network transform is implemented. But in theory, you just move the client and the sync logic reports the result to the server. Ofc if you’re using predictions/corrections that’s gonna be way more complicated negotiations. There you’d move the client based on some internal meta-state that aims to use local and remote information together with the timing/sequencing of this information to minimize the error between the two while smoothing the corrections.

[teal cedar]

Is this efficient or there is different solution?I try to instantiate and attach weapon on all A players (player who picked up weapon) on all clients

    {
        DestroyServerRpc(id);
    }

    [ServerRpc(RequireOwnership = false)]
    private void DestroyServerRpc(ulong id)
    {
        InstantiateSetWeaponClientRpc(id);
        NetworkObject network = GetComponent<NetworkObject>();
        network.Despawn();
    }
    [ClientRpc]
    private void InstantiateSetWeaponClientRpc(ulong id)
    {
        NetworkFPSController[] networkFPSControllers = FindObjectsOfType<NetworkFPSController>();

        foreach (NetworkFPSController fpsController in networkFPSControllers)
        {
            NetworkObject playerObject = fpsController.gameObject.GetComponent<NetworkObject>();
            if (playerObject.OwnerClientId == id)
            {
                GameObject Weapon = Instantiate(NonNetworkWeapon);
                Weapon.transform.parent = fpsController.weaponContainer.transform;
            }
        }
    }```

[teal cedar]

Or else, does network manager have something like get player object by id? Not local one

[sharp axle]

If you are doing client prediction then you basically have to write your own network transform. The clients have to move locally but still get updates from the server about it's true position.

[sharp axle]

It would be easier to have the instantiate clientRpc on the player object. Then just pass the item id to equip

[teal cedar]

Yeah, so only thing that weapon on the ground will do is that it will send weapon index and then player will find that weapon in it's own scriptable object and then instantiate it through rpc?

[sharp axle]

Thats how I do it

[teal cedar]

While developing those weapons I found out this. So this client rpc will be executed on all clients except owner right? Respectively it will be executed but owner will be ingored

        private void SendAngleClientRpc(float angle, ulong id)
        {
            NetworkObject Player = NetworkManager.LocalClient.PlayerObject.GetComponent<NetworkObject>();
            if(Player.OwnerClientId == id){return;}
            else{
                CinemachineCameraTarget.transform.localRotation = Quaternion.Euler(_cinemachineTargetPitch, 0.0f, 0.0f);
            }
        }```

[teal cedar]

Interesting

[sharp axle]

This will run on everyone's client but will only effect the remote player

[teal cedar]

So that's what I want. When A moves then update immediately locally it's position then update A position on all other clients except for player A's own pc because that is already locally done

[sharp axle]

If this is on the player object hen all you need is if(IsLocalPlayer) return

[teal cedar]

Okay, that makes it easier for me. Thank you so much😀

[warped pilot]

How was the variable for OnNetworkSpawn ? I cant find it ..

[warped pilot]

ok i got it

[mortal blaze]

On unity multiplay, is there a way to increase the number of machines in the cloud or specs of it? or add fleets on a single queue on matchmaker? what I'm trying to do is create 50+ available servers on a single queue.

[warped pilot]

Hello, a stupid question, but how do I sync a particle effect so that others can see it?

[sharp axle]

https://docs-multiplayer.unity3d.com/netcode/current/advanced-topics/networktime-ticks/#example-2-using-network-time-to-create-a-synced-event

[warped pilot]

thanks a lot

[warped pilot]

Can a Scriptableobject have a NetworkBehaviour ?

Ok can not

[stray shell]

does anyone know how can I make it so that all clients can interact with a rigidbody (move it) in unity netcode for gameobjects?

[livid dawn]

Anyone know how to "stream" the background music playlist in Unity using Photon Fusion or Voice? I want everyone in the room/session to listen to the same thing at the same time.

[regal delta]

Maybe see if a 3rd party solution is out there. Or send a sync variable to tell each player to listen to the same track at the same time

[sharp axle]

Only the object's owner should be controlling the physics. Otherwise you'll end up with race conditions

[sharp axle]

If you want to stream media then look into WebRTC

[stray shell]

Its a cube thats in a room. Everyone should be able to interact with it.

[sharp axle]

If its owned by the server then just make sure every player has a rigid body and collider and it should just work

[stray shell]

You mean the network player, right? The problem with that is that I also have physics based interactables that should be able to be picked up by every player

[sharp axle]

if two player try to pick it up at the same time, you're gonna have a bad time

[stray shell]

It's a vr game. If the player picks it up the other players cant grab it anymore. Fist one to grab it grabs it

I mean it has to work somehow, its not like I'm the first person trying it

[livid dawn]

I meant "stream" more like playing the music that's been imported already into Unity and using AudioSource and playing it for everyone in the room to hear but everyone hears the same thing at the same time.

[sharp axle]

https://docs-multiplayer.unity3d.com/netcode/current/advanced-topics/networktime-ticks/#example-2-using-network-time-to-create-a-synced-event

[livid dawn]

I appreciate it but do you think this will work with Photon Fusion?

[sharp axle]

As long as it has network/server time the theory is the same

[livid dawn]

sorry if I sound stupid but I'm really new to the whole online thing and trying to learn lol

[sharp axle]

Syncing physics is very very hard.

[covert gull]

Anyone use the encryption capabilities of Unity Transport? I followed the Unity documentation for enabling a secure server/client connection using DTLS and certificates and I keep getting a DTLS handshake error. It keeps saying the DTLS handshake failed on step 6. Anyone know why I might be seeing this error?

[severe briar]

If I understood it correctly then step 6 is 'Certificate request'.
Maybe the server/client doesn't have that.
Or I've completely missed and it means something else.
Anyways, you can read the handshake packets using wireshark, it will prove/disprove my guess.

[covert gull]

Do the certificates need to be installed on both ends?

[severe briar]

Yeah, I think so.

[warped pilot]

Sorry, I'm pretty new to networking. But maybe someone can explain my problem to me. The Client Move doesn't work, does anyone know why?

[nocturne vapor]

there are quite a few porblems with this, first off you can't take input in the functions you call in a server rpc, it won't work, you would need to pass that input
But that would result in different problems (latency)
What are your goals for that project? depending on that answer, the solution is different
Are you ok with allowing the players to say were they are? So not care about movement hacking in any form

[warped pilot]

I only read that it would be better to run it over the server

is it bad ?

ClientNetworkTransform is working fine

My goal for the project -> third person shooter like Pubg/Fortnite

[teal cedar]

Yo, that's mine too

[teal cedar]

Creating shooters is hardest because your latency needs to be bellow 50ms

Can player object have two network animators?

[teal cedar]

That's issue I have to fix too. Because I have fps shooter and movement is still client controlled so.

[nocturne vapor]

It is not bad, it is actually good, you will just need a lot of knowledge implementing that solution
You will need to write your own network transform doing client side prediction, so doing the movement on the client, but the client also listens to the server about the true position
I honestly have not looked into how this is implemented in detail, so can't guide you further

The default unity option only provides one mode the server is right, the clientside transform does the oposite, the client is always right, you will have to do the server is always right globally but it allows the client to do stuff, till the server says that this is not okay

[warped pilot]

Ok thanks for your answer

Im just trying it ..

is it easy to hack a position with clientside movement ?

or difficult too ?

For my script, what would be the correct way ? What did I false ?

[nocturne vapor]

Mainly taking input in the function you call in a serverrpc, that function will be executed on the server and simply can't take any input from the player
What you would want to do instead, if you want to go with that approach you currwntly have, is pass in the input as arguments to these functions

[warped pilot]

What would be the input ?

Just playerinput.move ?

this is my Vector3

[nocturne vapor]

You do a lot with the playerInput in the move function, which gets called by the serverrpc fir example playerInput.sprint? ...

[warped pilot]

using UnityEngine;

public class PlayerHealth : NetworkBehaviour, IDamageable
{
    [SerializeField]
    private int _MaxHealth = 100;

    [SerializeField]
    private int _Health;

    [Header("Death Seetings")]
    [SerializeField]
    private ParticleSystem DeathSystem;

    public int CurrentHealth { get => _Health; private set => _Health = value; }

    public int MaxHealth { get => _MaxHealth; private set => _MaxHealth = value; }

    public event IDamageable.TakeDamageEvent OnTakeDamage;
    public event IDamageable.DeathEvent OnDeath;

    private void OnEnable()
    {
        CurrentHealth = MaxHealth;
        OnDeath += Die;
    }

    private void OnDisable()
    {
        OnDeath -= Die;
    }

    private void Die()
    {
        if (DeathSystem != null)
        {
            Vector3 spawnPosition = transform.position + new Vector3(0f, 2f, 0f);
            Instantiate(DeathSystem, spawnPosition, Quaternion.identity);
        }
        Debug.Log("Ich bin gerade gestorben!");
    }

    public void TakeDamage(int Damage)
    {
        int damageTaken = Mathf.Clamp(Damage, 0, CurrentHealth);

        CurrentHealth -= damageTaken;

        Debug.Log(CurrentHealth);

        if (damageTaken != 0)
        {
            OnTakeDamage?.Invoke(damageTaken);
        }

        if (CurrentHealth == 0 && damageTaken != 0)
        {
            OnDeath?.Invoke();
        }
    }
}```

Is it hard to expand my health system with networking ?

[severe pilot]

Hey guys, for some reason I can't connect over LAN using NGO. Not using local host, works from same device but not over different devices. Have allowed unity editor through firewall. Any advice?

So this is hosting

On client

so this is 2 instances on the same device and works fine

but enterting the same ip and port on another device, connected to the same network doesn't work

I tried using my hotspot and data in case it was an issue with the network I'm connected to but same issue

Client code

Host code

I have allow remote connection enabled too

ah

it's a firewall issue

turning off firewall worked

what do I need to allow in firewall cause I allowed unity editor

[warped pilot]

How do I handle Objectspools in Network ?

[austere yacht]

use a custom spawner implementation that redirects the spawn command into your pool (netcode frameworks typically consider an inactive object as "despawned" as far as the shared game state goes)

[sharp axle]

https://docs-multiplayer.unity3d.com/netcode/current/advanced-topics/object-pooling/

[fresh meteor]

What would be a good choice for a text based multiplayer game?
Players wont be walking around with a character, but rather pressing some buttons to make actions(delay/ping shouldn't be a problem here)
This means that a constant connection is probably not necessary other than being logged into an account. (tho I know little about networking so perhaps its necessary either way)
This has to work in a browser and use some sort of database to store player data + account info.

[willow vale]

Hey, is there any solution like ParallelSync provided by unity itself?

[terse radish]

Hi all! I'm trying out the new multiplay play mode but I find a bunch of errors in the new player window that pops up

Asset Database is set to Read Only, but it has found out-of-date assets. This should not happen!
Asset Database is set to Read Only, but there are out-of-date assets during trigger import. This should not happen!

and then it fails to load in my addressables assetdatabase. Anyone happens to know what the working directory of this new play window is? I have a custom build & load path set up for addressables as my project is split up to multiple sub-projects. The addressable load path is given with a relative path which is easily resolved using the main Unity Editor (and has been working for like 2 years now) but fails miserably when i try it out using the new multiplayer play mode.

[neon yoke]

Using Unity netcode whenever I change the scene using the Netcode sceneManager. Some networkObjects that are spawned are not destroyed. How should I approach this issue?

[sharp axle]

If it's purely text based then I would try to find a node js MUD server

[sharp axle]

https://docs-multiplayer.unity3d.com/mppm/current/about/

[warped pilot]

Hello, I'm trying Objectpool according to the documentation, but I get an error on this line:
// Register Netcode Spawn handlers NetworkManager.Singleton.PrefabHandler.AddHandler(prefab, new PooledPrefabInstanceHandler(prefab, this));
Unable to convert "Unity.BossRoom.Infrastructure.PooledPrefabInstanceHandler" to "Unity.Netcode.INetworkPrefabInstanceHandler".

I have only copy this from the documentation, what is the mistake here ?

[uncut wren]

Good evening, folks. I'm currently looking into a networked FPS and have a pretty solid character controller so its time to move onto weapons.
I've tried this before but got stuck on spawning the player(s) and their weapons.
I'm using Netcode for Gameobjects
Does anyone have any pointers or experience on this that they'd be willing to share?

I'm currently thinking that I could just spawn separate network objects and attach them to the players

[haughty heart]

You shouldn't need a network object for what the player is holding. All that should be is some synced value representing the weapon and then have each client show the weapon on the character, locally.

Of course, if the weapon is dropped (if that's a thing), that would be its own network object.

[uncut wren]

iirc, the way I did it before was simply instantiating the weapons as a child of the player before base.OnNetworkSpawn(), but I ran into the odd issue that, uh
only the host had a gun

I'll have a play about, I still need to implement weapons in some manner though

[haughty heart]

Right, that's why you "dress" the players locally on each client based on their synced variable. I'd imagine you'd sync a custom object representing a player that stores their info like team, health, currently held weapon etc.

[uncut wren]

So I could have, say, a container with each weapon on it and it instantiates a weapon for each player based on the index of the weapon they're using

[haughty heart]

Something like that yeah

[uncut wren]

alrighty. I've also got some other stuff going on too, such as anim override controller stuffs

so hopefully it's gonna play nice with that

but for now, I'm gonna work on getting weapons to spawn for players

thanks for a lil bit of guidance :)

[knotty horizon]

Good day everyone! The question is, I have a client and a server. And the problem is that if I try to log in on a PC, then everything connects and works as it should, but if I run the project on Android, the connection is not established

    void Start()
    {
        DontDestroyOnLoad(this);
        string filePath;
        filePath = Path.Combine(Application.streamingAssetsPath, "ca.crt");
        try
        {
            byte[] caCertBytes;
#if UNITY_ANDROID && !UNITY_EDITOR
        WWW www = new WWW(filePath);
        while (!www.isDone) { }
        caCertBytes = www.bytes;
#else
            caCertBytes = File.ReadAllBytes(filePath);
#endif
caCertificate = new X509Certificate2(caCertBytes);
        }
        catch (Exception ex)
        {
  ErrorText.text += ("Произошла ошибка: " + ex.Message);
        }
        try
        {
     PlayerPrefs.SetInt("FlagAuthorizate", 0);
            RunClient(IP, "192.168.1.204");
        }
        catch (Exception ex)
        {
            Debug.Log(ex.Message);
            return;
        }
    }
public async void RunClient(string machineName, string serverName)
{
    try
    {
        client = new TcpClient(machineName, PORT);
        ErrorText.text += "Get stream.\n";
        stream = client.GetStream();

        sslStream = new SslStream(stream, false, new RemoteCertificateValidationCallback(ValidateServerCertificate), null);
        Debug.Log("Client connected.");
        try
        {
sslStream.AuthenticateAsClient(serverName, null, SslProtocols.Tls12, false);
            await Task.Run(() => MachinState());
        }
        catch (AuthenticationException e)
        {
            Debug.Log(e.Message);
            if (e.InnerException != null)
            {
      Debug.Log(e.InnerException.Message);
            }
            Debug.Log("Authentication failed - closing the connection.");
            client.Close();
            return;
        }
    }
    catch (Exception e)
    {
        return;
    }
}

public bool ValidateServerCertificate(object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors sslPolicyErrors)
{

    foreach (X509ChainElement chainElement in chain.ChainElements)
    {
        Debug.Log(chainElement.Certificate);
    }
    if (chain.ChainElements.Count > 1 && chain.ChainElements[1].Certificate.Equals(caCertificate))
    {
        return true;
    }
    else
    {
        // Цепочка не содержит корневой сертификат центра сертификации
        Debug.Log("Certificate is not signed by the specified CA.");
        return false;
    }
}

[noble sapphire]

So in the Unity Transport theres a bool called Allow Remote Connection, how can i change that in script

[verbal palm]

hi, i wwanna ask is that let say i have a gameobject in which i have deattach the child at the first frame to make the code work, so will the netcodes network object will keep track of that child object which gets deattached from the parent

[mortal blaze]

On multiplay/matchmaker, how to get the number of allocated machine on a fleet? or get if a pool has already a maximum server without queueing .

[flint jolt]

Hello, everyone! I'm new to Unity and encountering some issues. When I attempt to collaborate with my friends using LTS 2021.3, I can't seem to locate the collaboration option in Unity Gaming Services. Could someone please assist me in finding a solution? Thank you!

[spring void]

[Netcode for GameObjects]
I've noticed that my ClientRpc runs on the host even if he wasn't listed as a target client. Is it intended behavior? Am I doing something wrong?

 public void SetIntAttributeValueOnClients (int objectId, int value)
 {
    Debug.Log(nonHostClientsRpcParams.Send.TargetClientIds.Count); // returns 0
    SetIntAttributeValueClientRpc(objectId, value, nonHostClientsRpcParams); // It's supposed to run only on non-hosts
 }

[ClientRpc]
void SetIntAttributeValueClientRpc (int objectId, int value, ClientRpcParams clientRpcParams)
{
    Debug.Log($"Test"); // is logged on host anyway
}

[silk reef]

Is there any good way to say spawn some related NBs, set some NVs, and then do something once they are all synced?

without a ClientRPC

[spring void]

Looks like the problem exists only if I use ClientRpc from another ClientRpc. It resolves like a normal (non-network) method. I suppose I'll need to use it more carefully.

[nocturne vapor]

A clientrpx needs to be called on the server
So if you want to use it from normal function you would call a serverrpc that calls that clientrpc

[spring void]

What I meant, calling ClientRpc makes the next ClientRpc work like a method even if it's still called on the host/server.

void Test1 ()
{
  Test2ClientRpc (clientsRpcParams);
}
[ClientRpc]
void Test2ClientRpc(ClientRpcParams clientRpcParams)
{
  Debug.Log("Test2"); // works like a normal ClientRpc
  if (NetworkManager.Singleton.IsHost) // passes the condition check
    Test3ClientRpc(clientsRpcParams);
  if (NetworkManager.Singleton.IsServer) // passes the condition check
    Test3ClientRpc(clientsRpcParams);
}

[ClientRpc]
void Test3ClientRpc(ClientRpcParams clientRpcParams)
{
  Debug.Log($"Test3"); // works like a normal method
}

So it looks like I can't use a nested ClientRpc even if it's still called from the server.

[nocturne vapor]

yea I don't think that works

[waxen quest]

Hello I am using Lobby with Relay and Netcode.

The Lobby rate limits are very low. It is not even for 1 user this much request per second. It's for all users. How can we increase the rate limits??

[waxen quest]

How can we know if we can place the request. Is there a callback. When we have a request available.

[waxen quest]

The players cannot able to Join lobbies together at the same time. It throws RateLimited Error.

This will give very bad impression of the game

[severe briar]

That's intended.
Clients can communicate with the server.
Server can communicate with the clients.
But clients can't communicate with each other directly.

[spring void]

Just to make sure I'm getting it right: the server/host can't communicate with clients via ClientRpc, because it's intended?

I mean in this test I wasn't even trying to communicate with clients from a non-host clients.

So pretty much I communicated only from the host side, yet ClientRpc still failed.

To clarify: on non-host clients the condition if (NetworkManager.Singleton.IsHost) wouldn't return true.

So pretty much Test3 method should only be run from the server. Yet it doesn't work like ClientRpc despite of being ClientRpc.

[severe briar]

The second client rpc is already on the client side, so it will be executed locally, since clients can't communicate with each other directly.

[spring void]

Alright, so the host has client and server side separated, and those sides can't communicate with each other without a correct RPC call, even if they belong to the same app/game instance. It makes more sense now. Thanks for the clarification. So far I thought the host had both functionalities included.

[severe briar]

If the game is runned in 'Server' mode, then it has only server functionality.
If in 'Host' mode, then a server and client instances are created.
And host, as a client, connects to the server.

[spring void]

Thanks for clarification.

[waxen quest]

Is there something we can do?

[silk reef]

how would I do something like NetworkVariable<NetworkBehaviourReference[]>

When I use a NetworkList, it updates any time I add/remove, which is not what I need

[severe briar]

What behaviour do you expect?

[silk reef]

I believe thats as expected, if I add/add/add/remove ill get onListChanged callback 4 times

i dont see any other way to say populate a list with 10 objects, and only have OnListChanged called once

[severe briar]

You can use event on the list

if (listevent.Count != list.Capacity) return;

I don't remember what this object contains, so can't write the exact syntax.

Also, I thought that it's possible to store an array as a NV.

[severe briar]

From the docs:

Arrays of C# primitive types, like int[], and Unity primitive types, such as Vector3, are serialized by built-in serialization code. Otherwise, any array of types that aren't handled by the built-in serialization code, such as string[], needs to be handled through a container class or structure that implements the INetworkSerializable interface.

Just create a wrapper class for a NetworkBehaviour or use NetworkObjectReference.
Upd: NetworkBehaviourReference should also work.

[silk reef]

NetworkVariable<NetworkBehaviourReference[]>?

[severe briar]

Yes, I think it should work.
But not sure, since I hadn't touched the netcode for a couple of months.

[silk reef]

let me try

[silk reef]

ArgumentException: Type Unity.Netcode.NetworkBehaviourReference[] is not supported by NetworkVariable1.

[severe briar]

Created a wrapper for the NBR

 public class NetworkBehaviourArray : INetworkSerializable
    {
        public NetworkBehaviourReference[] References;
        
        public void NetworkSerialize<T>(BufferSerializer<T> serializer) where T : IReaderWriter
        {
            serializer.SerializeValue(ref References);
        }
    }

private NetworkVariable<NetworkBehaviourArray> _test = new();

Don't know if it will sync values correctly, test it yourself

[severe briar]

If it doesn't you can try

public class NetworkBehaviourArray : INetworkSerializable
    {
        public NetworkBehaviourReference[] References;
        
        public void NetworkSerialize<T>(BufferSerializer<T> serializer) where T : IReaderWriter
        {
            for (int i = 0; i < References.Length; i++)
            {
                serializer.SerializeValue(ref References[i]);
            }
        }
    }

[silk reef]

doesnt seem to work for me, maybe i implemented it wrong?

[severe briar]

What doesn't work?
The values don't sync?

[silk reef]

im not sure how i should implement it exactly:
public NetworkVariable<NetworkBehaviourArray> test;

test.Value = ?

[severe briar]

I think it should be
test.Value[index]
As it holds an array, so the value will return an array.

[silk reef]

I tried this:

        {
            this,
            this,
        };

        test2.Value = new NetworkBehaviourArray()
        {
            References = array
        };```

oh, it does work. but for some reason the previous value is always null...

[severe briar]

It turned out, that you can have an array of network variables

NetworkVariable<int>[] _array = new NetworkVariable<int>[5];

[silk reef]

wuhhh

[silk reef]

let me try, how would OnValueChanged work there?

[severe briar]

I think each variable in the array would have a OnValueChanged event

[silk reef]

thats interesting, but it wont help me much in this case. Turns out I made a silly mistake and the code you gave above is working nicely.

[nocturne vapor]

I mean it makes sense if you think about it, you just tell the compiler please allocate and inite the memory x times

[nocturne vapor]

You would have to go through the array of network vars and add that onValueChanged function I guess

[silk reef]

{
    public int Count;

    public NetworkBehaviourArray Test;

    public void NetworkSerialize<T>(BufferSerializer<T> serializer) where T : IReaderWriter
    {
        serializer.SerializeValue(ref Count);
        Debug.Log(Test == null);
        Test.NetworkSerialize(serializer);
    }
}```

Now I thought nesting it would work based on the docs, but i get a nullref

It does work, its only on spawn that its null, but im not sure how to avoid

[nocturne vapor]

From where do you init all of that? Start or OnNetworkSpawn?

[silk reef]

        CharacterNetwork.Value = new CharacterNetwork()
        {
            Count = refs.Count,
            Test = new NetworkBehaviourArray()
            {
                References = refs.ToArray()
            }
        };```

[silk reef]

from a server button press atm

it doesnt seem to send the Test to the client, im a bit out of my depth

[warped pilot]

Hello, what is a good option with Unity Gaming Services that allows players to log in only with the current game version?

[teal cedar]

Does NGO support network array? Network variable<int>[]

[severe briar]

Yes

[uncut wren]

I have a whole new crazy issue.
I'm getting an error telling me that a network prefab with a certain Hash cannot be spawned

I'm creating a player and spawning weapons for it in the hierarchy - so what would be the best course of action for this?

Perhaps I could register the players' spawned prefabs as network prefabs?

[silk reef]

@severe briar
I got it mostly working like this:

public struct NetworkBehaviourArray : INetworkSerializable, IEquatable<NetworkBehaviourArray>
{
    public NetworkBehaviourReference[] References;

    public void NetworkSerialize<T>(BufferSerializer<T> serializer) where T : IReaderWriter
    {
        // Length
        var length = 0;
        if (!serializer.IsReader)
        {
            if (References != null)
            {
                length = References.Length;
            }
        }

        serializer.SerializeValue(ref length);

        // Array
        if (serializer.IsReader)
        {
            References = new NetworkBehaviourReference[length];
        }

        for (var n = 0; n < length; ++n)
        {
            serializer.SerializeValue(ref References[n]);
        }
    }

    public bool Equals(NetworkBehaviourArray other)
    {
        return References == other.References;
    }
}

the only issue now is in OnValueChanged the previousValue.References is null, im not sure how I can initialize it

[uncut wren]

update on my issue - its now spawning all the weapons as it should

but I now get an error about incorrect parenting

[uncut wren]

Hey, thought I'd update you on my object spawning stuffs.
Not at the pc rn, but I had errors regarding a failure to spawn an object locally due to invalid prefab hashes.
Starting to think I might have to pool all the weapons into the character and just enable the ones the player is using

I'll see how that goes regarding errors and stuff - and can optimise later - but if it doesn't work, I think I'll move back to a non-networked project for the time being

[haughty heart]

Yeah, that's one way to do it have the player prefab map the weapons and toggle them as needed. Whatever works for you.

But yes, making a networked game is an extreme amount of work. Once you get past the "this seems easy" tutorials that only show how you sync transforms, reality of the work ahead sets in. 🫠

[uncut wren]

yeahhh lmao, im running into some mega problems here

[neon yoke]

I have a scenario were multiple clients are together in one scene and when they all stand on a square I load in a new scene (single mode).
I want to pause the new scene until all clients have loaded into it.
But I don't know how I can pause the scene for loaded clients that are waiting for the last clients to load, should I set the timescale to zero?
To communicate if a client has loaded the scene I was planning on using SceneEventType.LoadEvenetCompleted and clientRpc's
What is the best way to approach this?

[severe briar]

I, usually, store data for each player in a class and then compare the loaded and timedout amount with the connected amount.
I think you can use NetworkManager.Singleton.ConnectedClients.Count or something, I don't remember the exact syntax

[pallid steeple]

you get a list of all the clients that completed the loading on SceneEventType.LoadEventCompleted SceneEvent (also a list of those that failed)... You could have say... a bool ShouldGameRun=false; which you set to true when all clients are in the sceneEvent.ClientsThatCompleted list and then your game runs again

[neon yoke]

@severe briar @pallid steeple thanks for the response.
The part for managing the clients was clear to me.
I am unsure about my assumption that you can use the timeScale to pause the scene in Networked Projects?

[severe briar]

It's bad practice in general.
Let's take a turn based strategy for example, even when it's the player turn the game doesn't freeze, even though the game is 'paused'.
The way to 'pause' the game is by turning on/off components based on the game state.

[neon yoke]

Thanks then I will take your advice and find another way to "pause"

[bronze tendon]

I'm making a card game, with multiplayer. The multiplayer connects random people all over the world to play. I'm wondering if ping would be an issue. Right now everyone can connect with everyone. But would that have an impact on the game? The game doesn't need high internet speeds, but it does need to keep the player connected and make it somewhat playable, like passing network variables quickly etc.
Without regional matchmaking there will be more players to play against; Lobbies fill up quicker.
With regional matchmaking, the lobbies ofcourse will fill up less quickly, but the ping would not be an issue.

What are you guys' ideas about this?

[spring crane]

Try playing it with high ping emulation? You know best whether your game has mechanics that are timing sensitive. Some time sensitive things can also be pretty easily compensated for.

[bronze tendon]

That sounds like a great idea. I'm guessing Unity doesn't have a built-in ping emulation 🙈. Would a simple VPN work?

I'm reading on a reddit post that "clumsy" is a good app for emulating high ping. Any other recommendations?

[spring crane]

Yea I recall Clumsy. I don't have other recommendations.

[bronze tendon]

I'll check it out. Thanks 👍

[silk reef]

can anyone explain how to use NetworkVariable<NativeArray<int>>

[waxen quest]

Why am i getting this error. This only appears on Host. It is happening since i updated Unity Editor to 2022.3.13

[severe briar]

Can't tell much without the code.
Maybe
Because you've updated the editor to a newer version.

Tried looking for an issue on github but it doesn't exist.

[waxen quest]

It never happened before. But after I updated the editor.

[severe briar]

Open a github issue
And downgrade

[teal cedar]

I am completely lost. I have network variable. I then set it's value through server rpc but it throws me error Client is not allowed to write to this variable. Like what?!

[severe briar]

Show the code.

[teal cedar]

    private void SynchroniseActiveIndexServerRpc(int activeIndex)
    {
        NetworkactiveIndex.Value = activeIndex;
        Debug.Log(NetworkactiveIndex.Value);
    }```

[remote relic]

Hello, I’m trying to work on my client reconnecting code. Two clients can join a game and spawn objects with ownership. When a client disconnects I can have them rejoin with a unique Guid. Although now their clientId is different. What’s the best way to go about keeping all objects owned by that client? Even though the ids change.

[severe briar]

Maybe, you're changing the variable somewhere else?
Also, make sure to initialize it.

[severe briar]

I think you can reduce the Network id recycle or something on the network manager.
Or try to set the object id directly, but I don't know if it's possible.

Or save all objects in the dictionary<ulong clientId, List<NetworkBehaviour>>
Check if the player connected is the same as previous, don't know how to do this, maybe via transport or something.
Change ownership of all object to the new player.

[teal cedar]

here is how I initialize it. And I checked it. It is changed only inside that RPC
public NetworkVariable<int> NetworkactiveIndex = new NetworkVariable<int>(-1, NetworkVariableReadPermission.Everyone, NetworkVariableWritePermission.Owner);

[twin lion]

Do NetworkVariableWritePermission.Server instead of Owner maybe?

[teal cedar]

I will try

[twin lion]

Maybe the server doesn't own the object

[remote relic]

Ok I’ll try these out, thank you!

[teal cedar]

It works! Thank you so much

[twin lion]

Great! :> no problem bro

[teal cedar]

And this? public NetworkVariable<int>[] WeaponIds = new NetworkVariable<int>[] { new NetworkVariable<int>(-1, NetworkVariableReadPermission.Everyone, NetworkVariableWritePermission.Server), new NetworkVariable<int>(-1, NetworkVariableReadPermission.Everyone, NetworkVariableWritePermission.Server) };
I change those inside ServerRpc but idk why it isnt synchronised through network.

[twin lion]

hmm I'm not sure how NetworkVariables work if they are "nested", you probably don't need networkvariables inside an already networked array, but to be honest I have never tried it

That's the only thing I can think of why it wouldn't work

unless your rpc is wrong or smth

oh no I just tried it, it is correct

I totally misread your code, but yeah I'm not sure what the problem could be, prob doesn't like accessing networkvariables inside an array would be my guess

[teal cedar]

So maybe I will just use two network ints. because Idk where is error. Because in Log no errors but when other player connect then player who was already there then his variables are still wrong

Okay, I replaced it and it works now so...

[severe briar]

I think it would work, if initialize in the OnNetworkSpawn.

[teal cedar]

How?

[severe briar]

public NetworkVariable<int>[] WeaponIds;

public override void OnNetworkSpawn()
{
    WeaponIds = new NetworkVariable<int>[]
    {
        new NetworkVariable<int>(-1, NetworkVariableReadPermission.Everyone, NetworkVariableWritePermission.Server),
        new NetworkVariable<int>(-1, NetworkVariableReadPermission.Everyone, NetworkVariableWritePermission.Server)
    };
}

[teal cedar]

Thanks, I will test it.

[limber crag]

Hi anybody tried to upload the file from PC to quest pro using any script?

[sour fiber]

i added netcode to project

but i have those error

[severe briar]

What version of unity do you use?
It seems like 2020 or lower.
As FindObjectByType was added later

[sour fiber]

i solved problem

yes related to version

i have not LTS version

i dowload LTS and fixed

[waxen quest]

How can we parent the spawning network object? This dont work

 if (IsServer)
 {
     GameObject bomb = Instantiate(bombPrefab, targetPlayerTemp.GetComponent<PlayerManager>().pickPoint);
     bomb.GetComponent<NetworkObject>().Spawn(true);
     bomb.GetComponent<NetworkObject>().TrySetParent(targetPlayerTemp.GetComponent<PlayerManager>().pickPoint);
 }

[severe briar]

Network objects can only be children of another network object.

player (NO) -> pickpoint (NO) -> bomb (NO)

NO - network object

[waxen quest]

Oh I see. Thanks so much @severe briar 🙂

[waxen quest]

I just added NO to pickPoint. But still it spawns at zero position

In my case pickpoint parent does not have NO. But player do have NO. My player is character and i have placed pick point on player hand

How do we deal that in this case?

Or i have to locally parent the bomb in every client

[spring pilot]

this is a super noob question so I apologise in advance but do I have to send EVERY piece of data not just including the players position, state, head rotation etc, but also their currently held weapon, whether or not they're reloading every single tick? the reason I'm asking is I want to send data to the server for when the player spawns incl what weapon they have etc, is it really necessarry to serialize that every tick? seems kinda inefficient no? apologies if my use of the word "serialize" is wrong here but it just seems like a kind of archaic and inefficient way of doing things to constantly be sending empty variables that aren't being used every tick

like would it not be more efficient say if I could just call a function, say for example weaponManager.triggerReload() and have a trigger for it sent over the wire so everyone sees it? because right now the way I'm handling stuff like that is by having an iNetworkSerializable boolean showing whether or not the player is reloading every single tick and it feels kinda wasteful...

[severe briar]

Sync variable state using NetworkVariable and update it using server rpc when needed.

[spring pilot]

thank you!

[unkempt abyss]

Hi, I'm using Facepunch.Steamworks to create a standalone dedicated server and a unity client. I'm trying to connect them using a Relay Socket provided by the C# Wrapper for the Steamworks API, however I cannot get the client to connect to the server. Here is my code:
Server

using Steamworks;

public class Program
{
    static void Main()
    {
        var serverInit = new SteamServerInit("spacewar", "Spacewar")
        {
            GamePort = 35004,
            Secure = true,
            QueryPort = 35005,
            SteamPort = 35006,
        };

        try
        {
            SteamServer.Init(480, serverInit);
        }
        catch (Exception e)
        {
            DebugWriter.WriteToConsole(e.Message, DebugTypes.Error);
        }

        Boot();
    }

    private static void Boot()
    {
        SteamServer.LogOnAnonymous();
        SteamServer.ServerName = "Test Server";
        SteamServer.MapName = "Test Map";
        SteamServer.DedicatedServer = true;
        SteamServer.AutomaticHeartbeats = true;
        SteamServer.MaxPlayers = 16;
        SteamServer.AutomaticHeartbeats = true;
        SteamServer.AutomaticHeartbeatRate = 60;

        SteamServer.OnSteamServersConnected += OnSteamServersConnected;

        var server = SteamNetworkingSockets.CreateRelaySocket<SteamworksServer>();

        DebugWriter.WriteToConsole($"Socket state: {SteamServer.IsValid}", DebugTypes.Info);

        ServerUpdate();

        SteamServer.Shutdown();
    }

    private static void OnSteamServersConnected()
    {
        DebugWriter.WriteToConsole("Successfully booted Socket Server", DebugTypes.AcceptedCon);
        DebugWriter.WriteToConsole($"{SteamServer.PublicIp}, {SteamServer.ServerName}", DebugTypes.AcceptedCon);
    }

    private static void ServerUpdate()
    {
        while (true)
        {
            Thread.Sleep(1000);
        }
    }
}

Client

var s = SteamNetworkingSockets.ConnectRelay<ConnectionManager>(480);

DebugWriter.WriteToConsole($"{s.Connected}", DebugTypes.AcceptedCon);

It always returns false

any help is appreciated :)

only thing I can think of is that the functionality of the SocketManager (SteamworksServer) are sync so the infinite while loop at the end block the thread but I'm not sure how I can set it up so the program doesn't end otherwise - I'd have to make the Manager functions async right? Unless someone has a better idea...?

[spring pilot]

hey guys just a quick question if you dont mind me asking, say I RPC something and the player is disconnected for a brief while during that tick, will they still receive the RPC after reconnecting? (I'm assuming no)

[sharp axle]

RPCs are sent reliably by default in NGO. If it gets dropped the server will try again

[waxen quest]

Does anybody know the solution

[nocturne vapor]

stuff the player picksups should always be parented locally and moved by the animations

[waxen quest]

I did a work around. Instead of parenting it. I am just making pickup items transform as pick point transform

.
One question. How to make RPCs work on derived classes?

Item: NetworkBehaviour

Bomb: Item

Rpc don't work in bomb class. It gives error

[nocturne vapor]

honestly can't hjelp you with that, maybe calling into the super class?
I don't use polymorphism I try to find other ways
I have a Item script and that Item script can be extended with different scripts, such as weapon, so on the object you need a weapon script and an item script, instead of an inherited weapon script
This is called composition over inheritance and leads to cleaner code and less problem Imo

[waxen quest]

I want to achieve something like that. Can you please share the example or link that can help me

In this case we have to put both class as MonoBehaviours?

Like bomb will have Item as well as Bomb script on its object?

[nocturne vapor]

give me a few minutes

[waxen quest]

Sure mate 🙂

[nocturne vapor]

the beautifull thing is that you can choose. For example if you want to have the item itself networked but the bomb only acts as a data container, you have the item network but not the bomb and access them via scripting as needed. If you don't need the item networked, because it only contains trivial data, such as the id of the item, but the bomb needs to be networked you can do this as well

[waxen quest]

Yeah, so am I right about your method? Both will be dropped as components to that object right?

Bomb will have Require component of Item

[nocturne vapor]

yes, both are components. So my method goes more in the direction of ecs, while still being different due to having systems and components unified into on thing

[waxen quest]

Yes this is also a good approach. I just wanted to have Item as separate generic script.

Thanks a lot for your time mate 🙂

[nocturne vapor]

using System;

//interfaces are the easiest way to achieve this, without having to rethink how to develop code
public interface IShape {
    void Draw();
}

//classes implementing that interface
public class Square : IShape {
    public void Draw() {
        Console.WriteLine("Drawing a square");
    }
}

public class Triangle : IShape {
    public void Draw() {
        Console.WriteLine("Drawing a triangle");
    }
}

//our container for the unificatio, in polymorphism this would be the parent class
public class Shape {
    private readonly IShape shape;

    public ColoredShape(IShape shape) {
        this.shape = shape;
    }

    public void Draw() {
        shape.Draw();
    }
}

//this can be done in cleaner way, but it shows a point here
Shape square = new Shape(new Square());
square.Draw();

In unity you can query these interfaces like any other component btw, so you can do:
.getComponent<IShape>().draw();

a video about flaws of inheritance:
https://www.youtube.com/watch?v=hxGOiiR9ZKg

but this is more of a tl;dr, since this is a network channel not a programming channel, but I think, it can help you solve your problems

[waxen quest]

Ohh I see. I never tried this. Will surely look into composition!

Thanks so much for your help

[nocturne vapor]

no problem

[nocturne vapor]

one additional thing, you can have nearly infinite interfaces you implement and inherit from a base class
So you can do:
class myCube : NetworkBehavious, IShape, IGravity, ... {
}

[waxen quest]

Yeah. That's great! Ill try the interfaces

[drifting plaza]

Due to the nature of networking, your client will always be running x ticks behind the server, correct? So how do you sync up clients and the server, do you just update the client's with whatever the latest position they sent is?

[nocturne vapor]

You design your systems with that latency in mind and if necessary do client side predictions

[sharp axle]

It's the other way around usually. The server is behind the clients by the ping time. That's why clients have to rollback when they get updated server data

[silk reef]

I find in NGO 1.5.2 if I call the following code OnValueChanged does not get called:

tiles.Add(this);```

something about changing the ownership and immediately changing a NetworkList results in tiles.OnValueChanged callback not happening on the client

If I change the ownership, wait, then update the list it works

I believe this is a bug, as it worked as expected in 1.0.2

[rigid niche]

Hey is "Lobby" currently down? Because im not getting any requests.

[drifting plaza]

Assuming constant latency, shouldn't this give me the number of ticks of latency? (Tick rate = 64)

[main hawk]

So I stumbled upon this tidbit of information from here (https://docs-multiplayer.unity3d.com/netcode/current/basics/networkobject/) and I want to ask, what does loading a NetworkBehaviour component mean? Does it mean just for it to be added to the GameObject, or its Awake/Start are called or something else? Also before what method of NetworkObject do I have to have the NetworkBehaviours "loaded" and does it mean that ALL NetworkBehaviours on ALL GameObjects have to be loaded before even the first NetworkObject is "loaded"?

[drifting plaza]

Is there a way to tell how long a specific rpc was in transit for after it is recieved?

[sharp axle]

I'm pretty sure this is just referring to the order of the components in the inspector

[sharp axle]

You can send the server time of the client in the RPC

[main hawk]

can I in some way change their order in code?

[sharp axle]

Not that I'm aware of but I've never looked into why you would even want to.

[drifting plaza]

and then what do I compare that value to?

[sharp axle]

The server time when it was received

[drifting plaza]

just to make sure, you're refering to NetworkManager.ServerTime.Time right?

[sharp axle]

Right

[drifting plaza]

so I tried this, but it's returning an incredily small value like 0.0087 which doesn't seem right for one way travel time. Espcially considering that: NetworkManager.Singleton.NetworkConfig.NetworkTransport.GetCurrentRtt(NetworkManager.ServerClientId) returns around 130 ms

[sharp axle]

I might have it backwards and you send Local Time from the client then subtract server time from it

yea
https://docs-multiplayer.unity3d.com/netcode/current/advanced-topics/networktime-ticks/#example-2-using-network-time-to-create-a-synced-event

[drifting plaza]

Yeah I was gonna say that i think the way we had it before was just giving the error in unity's estimate 😄

[drifting plaza]

so since I'm sending from server to client, do I send server time and subtract loca time from that?

[sharp axle]

from the server, local time and server time should be identical

[drifting plaza]

server local time and server server time are the same, i'm confused what your saying

[sharp axle]

on the server, NetworkManager.LocalTime.Time and NetworkManager.ServerTime.Time should be the same

[drifting plaza]

so i send ServerTime.Time from the server at the beginning of my client rpc, and when it arrives, I compare the difference with LocalTime.Time on the host?

ya know what dont worry about it, i'm about try something and if it doesn't wory im gonna have to ask about more stuff anyways so dont worry about it for now, thank you

Could someone take a look at my implementation of syncing ticks across clients and servers: I don't know why it isn't working, i've tried estimating latency with so many different approaches but nothing seems to work https://hastebin.com/share/qoxiyesapu.csharp

[gentle geyser]

Hi there, can someone say me what network solution better to use? Which one is more optimized. I already have experience with Mirror but not sure if it has the best performance. I'm looking into trying Netcode for Game Objects but I is it that good right now ? For example can it handle a lot of connected people, I mean around 100 player for example. I'm considering two options right now: FishNet and NGO

[waxen quest]

Hi, I am stuck in a weird bug. I am not getting client disconnection and connection callbacks even after subscribing to NetworkManager.

It used to work but suddenly not working since few hours. I have tried everything and still it don't work

These callbacks occuring only when Local Client and Host leaves but not for other clients.

[nocturne vapor]

There is no existing solution that can hanle 100players in a fairly complex game well. With a lot of optimization you could get it running, but mmos mainly write their own network solutions

Ngo is for smaller scale games 2-20 maybe

[waxen quest]

Can anyone tell why. For some reason I am suddenly not getting callbacks of Client connected or Disconnected for other clients except host and local client.

It's been a day and this problem occuring. Is this my device problem because i fetched an old commit too. It is not working in any build.

[nocturne vapor]

That goes over my head, that's why I didn't reply

[waxen quest]

Ohh for a work around I am sending rpc from server of Client connected and disconnected 🥲

[weak plinth]

Hello, I am working on creating smoke grenades for my fps, I have gotten them to show properly over the network through use of an rpc but they are not syncing position between clients. When the object is spawned in I am adding force to the rigidbody from the owner who spawned it in order to throw the grenade. using photon. Any help would be appreciated. Thanks

[dusty warren]

I have a question that's VRC related, how do you make an toggle global without creating a new intractable toggle? I have this tablet in this world from a creator & I wanna know how can I make that toggle go from local to global because earlier when I was in the world that I was working on testing the toggle I couldn't see what my friend was doing with popcorn that was placed in the world & apparently with the table that was placed in the world they could toggle it & it would show them floating but not the table so apparently it's only a local toggle.

[drifting plaza]

do I have to use some form of network transform with NGO

[nocturne vapor]

You may want to ask on the VRC discord for that. That is not the kind of netcode most are working with here
if it is udon tho I think there was a button in the visual editor if a variable is global or local

[nocturne vapor]

Depends on what you are doing, but yes that is preferable. If you need client side prediction you even would want to write your won network transform

[drifting plaza]

well I just have the client's manually send their positions and rotations and other stuff to the server via code rather than the component, so i figure that's okay right?

like as part of my client prediciton server reconcilliation

[nocturne vapor]

the default network transform does nothing else I think, so you just have written your own network transform, so yea that should be fine

if it works it works

[drifting plaza]

yup, I've tried in the past to get the whole system working but I didn't know about determinism with physics back then so you can imagine how I gave up after spending hours just to realize my whole approach was wrong. Came back to it a couple days ago, redesigned architecture, and now I've managed to implement it in under a day, so i'm pretty proud of myself, even if it's not the most complicated thing in the world

[drifting plaza]

Hey so I'm using a circular buffer for my CPSR, but the issue is when it goes back to 0 i esentially have to skip reconcilliation on that tick and then for the next tick I have to make special considerations, how can I implement a better solution for this?

[dusty warren]

Oh okay, thank you!

[dusty warren]

It is in Udon. How do I open the visual editor? 😶

[nocturne vapor]

it could be written in udon sharp as well, which would be c# and not visual scripting
Can only leave you with the docs of udon https://creators.vrchat.com/worlds/udon/

[dusty warren]

Oooh okay!

So if I were to change these parts of the script & replace local with global will it change just like that?

using UdonSharp;
using UnityEngine;
using UnityEngine.UI;
using VRC.SDKBase;
using VRC.Udon;

public class TouchToggle : UdonSharpBehaviour
{
public GameObject[] toToggle;
bool toggleState;
public Collider[] fingerTracker;
public ParticleSystem pAnim;
public AudioSource ding;
public Color off;
public Color on;
public Image graphics;
private void OnTriggerEnter(Collider other)
{
if (other == fingerTracker[0] || other == fingerTracker[1])
{
DoTheThing();

        if (other == fingerTracker[0])
        {
            Networking.**Local**Player.PlayHapticEventInHand(VRC_Pickup.PickupHand.Right, 0.25f, 4, 40f);
        }
        else
        {
            Networking.**Local**Player.PlayHapticEventInHand(VRC_Pickup.PickupHand.Left, 0.25f, 4, 40f);
        }
    }
}

public void DoTheThing()
{
    toggleState = !toggleState;
    pAnim.Play();
    ding.Play();

    if (toggleState == false)
    {
        graphics.color = off;
    }
    else
    {
        graphics.color = on;
    }

    for(int i = 0; i < toToggle.Length; i++)
    {
        toToggle[i].SetActive(!toToggle[i].activeSelf);
    }

}

private void Update()
{
    this.transform.localEulerAngles = new Vector3(0, 0, this.transform.**local**EulerAngles.z + Time.deltaTime * 4);
}

}

[nocturne vapor]

that wouldn't work

and it wouldn't even compile

again just ask on the vrchat discord, they specifically have channels for this kind of stuff
Most here are woking on games implementing the netcode architectures (such as unity NGO/NE, Mirror or Fusion Photon/Quantum), not the high level abstraction made by vrc udon. This will be most likely the wrong channel for that. There aren't that many active people here either

[nocturne vapor]

what do you mean exactly?

[drifting plaza]

uhm, nvm about that, but I do have a question about physx determinism. Of course, there may be other factors at play here, but (at constant velocity applied over a fixed time step equal to my fixed tick step) my delta position of a player is fluctuating quite wildly. While most of their delta positions per tick are around the calculated expect result, some of them go as high as almost 2x the calculated result and some go as low as 0.5x. Is this normal for non determinisim, or is there probably something else going on?

[nocturne vapor]

Uhm never played with that so can't tell. My only network experience lies in implementing it for my own game and trying to help people here
When I handle physics I usually just use the network rigidbody

[drifting plaza]

Ok i've never used that before but ill give it a try

hm, u need a network transform for a network rigidbody, let me see about a workaround

[nocturne vapor]

Might be worth testing it this way to see if it fluctuates as well

[drifting plaza]

Yeah, I mean at the end of the day I can always just add an additional check to make sure the distribution of high delta positions matches what I'd expect vs a constant stream of high delta positions, and that would theoreitcaally still work

Network rigidbodies always intimidate me cause of the stuff about how collisions only occur between objects that a client owns

[dusty warren]

Oh-

Okay.

[bitter needle]

Hi folks, quick question, not looking for extended explanations, just looking for an off the cuff, what's the effective CCU limitation of NGO? I know thats a loaded question, with a lot of dependencies to answer it...I am just looking for an off the cuff answer

[muted sinew]

hi i have a problem. i am making multiplayer game using netcode for gameobjects. i want to share server with developers, so they can test the game. how can i let they connect to server?

[silk reef]

Is there a good place to learn about message ordering? specifically around Spawning/NetworkVariables. Can I depend on messages arriving in order?

[radiant flare]

Maybe this would be something for you: www.bittershark.com ?

[sharp axle]

You are more limited by server hardware and bandwidth. You have to really know what you're doing to get more than 100 CCU per server

[drifting plaza]

OMG MY CSRP IS WORKING AHH IM SO HAPPY

took me two hours to figure out I had to manualy call the physics simulation

[bitter needle]

ok that's what I was looking for, thank you....so it's really a very data heavy api

[mighty badge]

I hope this is an appropriate channel to ask the following question:

So I have been studying about the Netcode Of Gameobjects Topic of Unity. I came across the Network Manager component and it has a list of Network Prefabs.

So far I've learned that the Network Prefabs is a list where you have to add prefabs that you want to spawn on the network. This part is where I have some questions about:

• For example if my game has 5 Unlockable Characters. Should they all be in the Network Prefabs List?
• From analytical perspective: What are some possible questions that I can ask myself to figure out beforehand what should be in Network Prefabs?
• Are there any other tips that can be provided regarding this topic? For example some common mistakes that people can make or overlook?

Thank you in advanced. I'll really appreciate it if someone can help me with this.

[sharp axle]

Not necessarily. The data that is synced is entirely up to you. Youbwikk always have to be mindful of how you are syncing the game state. Even if your game is just tic tac toe 99, a single sever is going to start choking eventually.

[sharp axle]

Only prefabs that need to be spawned dynamically need to be in the prefab list. Unlockable characters or dlc can be added to the network list at runtime with addressables or asset bundles.

[mighty badge]

Ah ok I think I understand it a bit better now. Thank you!

[granite pike]

Is there a way to get something like

Is there a way to get something like Try Server (Method with only NetworkSerializable Params), which will simply execute the function when offline but can do a specified behavior if we are online, like simply calling the method on Server Rpc. I use this line of reasoning for my code all the time using ServerRpc so this in simpler terms would be very useful.

[waxen quest]

Can anyone help. How can i get rid of this error. This error

[Netcode] [NT TICK DUPLICATE] Server already sent an update on tick 0 and is attempting to send again on the same network tick!

This happens only after Local player spawn till local player objects is spawned. And it only happens on Host device.

Its been 15 days and i am unable to figure out why this happens

[pure vector]

any recommendations for low latency networking? i usually use mirror but seeing if theres anything that would give better low latency performance for a project im starting

[sharp axle]

I would open a Support ticket for that. I've never seen that error message before

[sharp axle]

Low latency has more to do with your server hardware and network service provider than it does with networking API

[waxen quest]

Yeah. I could not find it anywhere on the internet either.

[hot dagger]

How would I sync 2 different variables between 2 clients such that only one client can modify one of the variables but the other can view it?

I'm using netcode for GO's. I'm trying to add a NetworkVariable<int> as a test variable, but I'm trying to figure out how I would sort out this case juggling between client and server rpcs

I guess ideally I'd want the data to only live on the server/host, but be readable/push updates to all clients. Currently working on how I can invoke a client side method that calls a server rpc to modify the data since I don't want the client modifying it directly

[pure vector]

yeah figure as much, just wasnt sure of current state of unity networking api's

[sharp axle]

NGO is pretty solid. Only things missing would be a client prediction system and area of interest system.

[hearty dock]

Netcode for GOs has a concept of "Ownership" for NGOs:
https://docs-multiplayer.unity3d.com/netcode/current/basics/networkobject/#ownership
See:
GetComponent<NetworkObject>().SpawnWithOwnership(clientId); and
GetComponent<NetworkObject>().ChangeOwnership(clientId); for example

Only the owner can modify the network variables on it

[novel kettle]

In Client Network Transform, there are these options. Can anyone tell me what the difference is between the first two and when to enable/disable the bottom two?

[novel kettle]

I'm getting the same errors. Mine are likely related to my Dotween DOMove methods. It started showing up this morning after updating from 2022.3.7f1 to 2022.3.11f1. I'm still investigating the issue, but could also use some help with this!

[waxen quest]

I figured out why that was happening for me. I was disabling Client Network Transform in one of my nested object of player. So the error was showing

[novel kettle]

I see! I'm doing the same thing 😲

[novel kettle]

So... you can't disable this component to prevent the player from performing any changes?

[waxen quest]

I solved it by keeping it enabled an just disable/ enable sync like this

ClientNetworkTransform networkTranform = rb.gameObject.GetComponent<ClientNetworkTransform>();

if (networkTranform != null)
{
    networkTranform.SyncPositionX = false;
    networkTranform.SyncPositionY = false;
    networkTranform.SyncPositionZ = false;

    networkTranform.SyncRotAngleX = false;
    networkTranform.SyncRotAngleY = false;
    networkTranform.SyncRotAngleZ = false;
}

[waxen quest]

Took me 10 days to find this out lmao

[novel kettle]

I'm so glad you did! Thanks for sharing the solution! You've just saved me hours of debugging 😉

[waxen quest]

No problem mate 🙂

[warped pilot]

Hello is it possible to add a networkprefab at runtime ?

[sharp axle]

https://docs-multiplayer.unity3d.com/netcode/current/learn/bitesize/bitesize-dynamicPrefabs/

[woeful cradle]

i get this error when i import pun 2 and photon voice 2, my version is 2022.3.2f1, ive tried re importing it and ive got no idea what to do

[river meteor]

Using NGO - Tried to do simple menu with IP Adress to connect input

 private void Awake()
    {
        serverBtn.onClick.AddListener(() =>
        {
            NetworkManager.Singleton.StartServer();
            _canvas.gameObject.SetActive(false);
        });
        
        clientBtn.onClick.AddListener(() =>
        {
            UnityTransport connectionInfo;
            if (NetworkManager.Singleton.TryGetComponent<UnityTransport>(out connectionInfo))
            {
                connectionInfo.SetConnectionData(ipTextbox.text, 7777);
                Debug.Log("Trying to connect: " + connectionInfo.ConnectionData.Address + ":" + connectionInfo.ConnectionData.Port + "...");
            }
            else
            {
                Debug.LogAssertion("Can't get connection info!");
                return;
            }
                
            NetworkManager.Singleton.StartClient();

            _canvas.gameObject.SetActive(false);
        });
        
        listenServerBtn.onClick.AddListener(() =>
        {
            Debug.Log("Start listen server at " + NetworkManager.Singleton.GetComponent<UnityTransport>().ConnectionData.Address + ":" + NetworkManager.Singleton.GetComponent<UnityTransport>().ConnectionData.Port);
            NetworkManager.Singleton.StartHost();
            _canvas.gameObject.SetActive(false);
        });

    }```

and it gives me an error when trying to connect, no matter what IP adress I am typing. 127.0.0.1:7777 is not valid, and my local 192 [...] is also invalid, why? without setting connection data it's working fine

[river meteor]

ok gathered IP from textbox should be .ToString()

[violet wadi]

Unity netcode:
How do I use the PlayerLeft lobby event? It returns a list of ints for the players who left, but how am I meant to use ints to represent players?

[blissful sentinel]

Hey guys, I am pretty new to network coding, trying to figure out unity multiplayer. I'm having this issue right now where I can't seem to connect as a client to my host (as in, when the client joins the server, they don't show up in the scene hierarchy) however, it does seem that client is still able to send logs to the server (I get the message that a new player joined the server, but nobody shows up). This is the code I'm using to join, I'm assuming this is where the problem lies:

[warped pilot]

Hello what is the best way to spawn a "bullet" with a trailrenderer ? I use this as a scriptable Object now:

    /// Erstellt eine "Bullet - Trail"
    /// </summary>
    /// <returns></returns>
    private TrailRenderer CreateTrail()
    {
        GameObject instance = new GameObject("Bullet Trail");
        TrailRenderer trail = instance.AddComponent<TrailRenderer>();
        trail.colorGradient = TrailConfig.Color;
        trail.material = TrailConfig.Material;
        trail.widthCurve = TrailConfig.WidthCurve;
        trail.time = TrailConfig.Duration;
        trail.minVertexDistance = TrailConfig.MinVertexDistance;
        trail.emitting = false;
        trail.shadowCastingMode = UnityEngine.Rendering.ShadowCastingMode.Off;

        return trail;
    }

    private IEnumerator PlayTrail(Vector3 StartPoint, Vector3 EndPoint, RaycastHit Hit)
    {
        TrailRenderer instance = TrailPool.Get();
        instance.gameObject.SetActive(true);
        instance.transform.position = StartPoint;
        yield return null;

        instance.emitting = true;
        float distance = Vector3.Distance(StartPoint, EndPoint);
        float remainingDistance = distance;
        while (remainingDistance > 0)
        {
            instance.transform.position = Vector3.Lerp(StartPoint, EndPoint, Mathf.Clamp01(1 - (remainingDistance / distance)));
            remainingDistance -= TrailConfig.SimulationSpeed * Time.deltaTime;

            yield return null;
        }

        instance.transform.position = EndPoint;
        yield return new WaitForSeconds(TrailConfig.Duration);
        yield return null;
        instance.emitting = false;
        instance.gameObject.SetActive(false);
        TrailPool.Release(instance);
    }```

[river meteor]

Ok, chatGPT is a fkng thing! Without it I would never find a solution to his. Problem was a ZWS - Zero Width Space character which was added from TextBox - this character is incorrect when using string as URL or IP Address. It must be cleared out. Simply with func like this : cs public static string RemoveInvisibleCharacters(string input) { return new string(input.Where(c => !char.IsControl(c)).ToArray()); }

[violet wadi]

How to not have 'Attempting to apply patches to lobby, but there were no patches to apply" warning?

[violet wadi]

You can show zero width characters within Visual Studio and Visual Studio Code

[river meteor]

yeah but I was debug logging in unity

but thanks for info

[waxen quest]

I suggest you to join Photon Discord. Their team will surely help you in this

[violet wadi]

Getting 404 when trying to join any channel in Vivox

        Debug.Log("Join channel async");
        string channelToJoin = GlobalClientData.LobbyID;
        await VivoxService.Instance.JoinGroupChannelAsync("myLobby", ChatCapability.TextAndAudio);
        Debug.Log("Channel joined");

setting the channel name equal to the lobby ID doesn't give a 404 but it never joins the chanenl

[teal cedar]

I'm lost. I have server rpc that will call coroutine SpawnBullet. That works fine. But inside SpawnBullet I have again SpawnBullet if I hit metal surface. On host it works but on client it doesn't do anything. Unity NGO

Why?

[sharp axle]

Are you calling Spawn() or are just trying to Instantiate() locally?

[frosty sinew]

i have online multiplayer up and running but struggling to find resources on playing sounds that all player can hear, i saw mentioned "serverRPC" and "ClientRPC". any help is appreciated. feel free to ping me

[sharp axle]

From the client you will need to call a serverRPC that calls a clientRPC. Or you can use a network variable to trigger the sound.
https://docs-multiplayer.unity3d.com/netcode/current/advanced-topics/networktime-ticks/#example-2-using-network-time-to-create-a-synced-event

[frosty sinew]

a network variable looks like the better option, from a lot of googles, audio isnt serializable so it cant be sent as easily as a variable

[crude ridge]

Anybody know why I get this error?

UnityException: get_value is not allowed to be called from a MonoBehaviour constructor (or instance field initializer), call it in Awake or Start instead. Called from MonoBehaviour 'Player' on game object 'Player'.

    private NetworkVariable<Color> color = new NetworkVariable<Color>(Random.ColorHSV());

    public override void OnNetworkSpawn()
    {
        camera.gameObject.SetActive(IsOwner);

        playerBody.GetComponent<Renderer>().material.color = color.Value;

        base.OnNetworkSpawn();
    }```

[nocturne vapor]

A MonoBehaviour can't be networked, you want to use a NetworkBehaviour instead for this

[crude ridge]

it's already NetworkBehaviour

or do you mean the Color object/variable?

cuz the script that the code is within is a NetworkBehaviour (player)

[nocturne vapor]

That script is in a monobehaviour class, atleast that is what the error says

Which is not allowed

[nocturne vapor]

That is odd

Errors in unity can expand, showing the line numbers, are you sure that these are the lines that are making problems?

[crude ridge]

it takes me to this linr

private NetworkVariable<Color> color = new NetworkVariable<Color>(Random.ColorHSV());

[nocturne vapor]

There shouldn't be anything wrong with that code

Try setting it to a fixed color and see if that fixed the problem

It could be that the init doesn't like a variable initilizer, which could be different on each machine

[teal cedar]

I use combination of pool and spawn. In server rpc I spawn and SpawnBullet bullet just moves it

[crude ridge]

yeah i thkn thats its cuz if i do

    private NetworkVariable<Color> color = new NetworkVariable<Color>();

    public override void OnNetworkSpawn()
    {
        camera.gameObject.SetActive(IsOwner);

        if (color.Value == new Color())
        {
            color.Value = Random.ColorHSV();
        }

        playerBody.GetComponent<Renderer>().material.color = color.Value;

        base.OnNetworkSpawn();
    }```
it works fine

but that if statement looks garbo

[nocturne vapor]

That way by definition it is on new Color, also you could just do an IsServer check, because netvars can by default only be wrirtten to by the server

So you can simplify a bit

[crude ridge]

so it's just if (IsServer)?

[nocturne vapor]

Yea

[crude ridge]

ic

It looks like all of the players have the same color now..

[teal cedar]

Yeah, it's bit annoying that you cannot pass material and materials cannot be networked

[urban hawk]

How do I like, determine which player is local and which player is remote without the player prefabs? They were spawned in the lobby scene, which I'm obviously moving away from after the game starts, so like, how do I inform the game of stuff like the local player owns these things marked with the local flag and the remote player owns the remote marked stuff. It's a hearthstone like card game so there's zero need for visuals to be synced across the network, only data

[teal cedar]

This just moves the bullet

[nocturne vapor]

There are mutliple ways, such as custom managers and so on, but you need to have a playerobject right? (Something you spawn as player object specifically) withthat is is just IsLocalPlayer

[urban hawk]

Should they be persistent? Cause I have them spawn in the lobby, and then when I load in the real gameplay scene they no longer exist

[nocturne vapor]

isn't the object that allows interaction and showing you your cards the player object in the new scene?
If you don't have that the easiest solution is just having a script that stores the clientid for the local player, so you can easily derive if a given clientid is the localplayer or not

[urban hawk]

Oh, no it's not, would it be the same player if I just put a player object in the scene? Or does netcode have like a special tie to the one it instantiates? Yeah clientid is probably what I'm going for otherwise, but idk which is best really

[nocturne vapor]

Best it what just works for you. Clientid is probably the fastest to implement and it will probably be reasonably fast

[urban hawk]

Yeah I don't really know what's best for me haha, I'll try that tho

[river meteor]

in NGO with ClientNetworkTransfom should I however sync localScale of player in code? It's not syncing

[crude ridge]

Do I need an IsServer check?

using Unity.Netcode;
using UnityEngine;

public class CustomNetworkManager : NetworkManager
{
    void Awake()
    {
        ConnectionApprovalCallback = ApprovalCheck;
    }

    private void ApprovalCheck(ConnectionApprovalRequest request, ConnectionApprovalResponse response)
    {
        response.Approved = true;
        response.CreatePlayerObject = true;
        response.Position = new Vector3(0, 100, 0);
        response.Rotation = Quaternion.identity;
    }
}```

[neon yoke]

Hi there,
I want to despawn all networkObjects when I switch a scene except objects in the dontDestroyLoad layer. How would I best approach this?

[nocturne vapor]

Isn't this the default behaviour?

[neon yoke]

Well I thought that as well, I used Photon in the past there it was. But here I just see my old networkObjects fall into oblivion while the other scene is loaded in. I am switching in single mode.

Here you can see the object (MortarShell(clone)) and when Is switch the scene and it is finished loading it is still present and falling through the world. The new level is a bit higher.

[frosty sinew]

trying to get a sound to play for all players connected when a button is pressed, this is my attempt at using a network variable bool. im getting a casting error "InvalidCastException: Specified cast is not valid." any help appreciated, feel free to ping me

[crude ridge]

is there a way to make it so the player does not spawn until the entire scene is loaded when using NGO? currently my player spawns before my spawnpoints, so i can't change its position properly

[waxen quest]

Does RPCs executes for late joiners?

[waxen quest]

Same I am looking for this too

[sharp axle]

You have to remove the player prefab from the network manager and spawn the players manually. You can use Scene Events SceneEventType.LoadEventCompleted or you use the spawn points OnNetworkSpawn() to call SpawnAsPlayerObject()

[sharp axle]

They do not. RPCs are for one off events. If you need late joiners to know about it then it's best to use network variables. Or you could send the RPCs again after the late clients Onclientconnected callback.

[coral sail]

Hi everyone im new here, i have few questions about netcode and dedicated server.

[coral sail]

i am making a game on dedicated server with backfilling enebled, player can join randomly, i want to give players the options to select any model from a bunch of them and then when they load the scene(which is uploaded on server) game is connected with the server and then their selected model is instantiated and synced across all the clients, which may be joining late in the game, how do i give the options for many models because there is only one prefab option in network manager that network manager instantiates, can anyone help?

[sharp axle]

basically, same answer as above. Remove the player prefab and spawn the players manually with .SpawnAsPlayerObject()

[waxen quest]

For some reason I am not getting OnConnected or OnDisconnected Callbacks for other clients. Only host is getting these callbacks for other clients not local player

[sharp axle]

Right, those only fire for the host and the connecting/disconnecting client.

[waxen quest]

It used to work for all clients previously tho

For work around I made rpc for connected and disconnected callbacks. Host sends to all

[crude ridge]

Where do I check when loadeventcompleted is invoked?

[sharp axle]

https://docs-multiplayer.unity3d.com/netcode/current/basics/scenemanagement/scene-events/#when-are-load-or-unload-sceneevents-truly-complete

[crude ridge]

So should spawning the character be server side or client side of the if statement for the loadeventcompleted code?

[sharp axle]

only the server can spawn things.

[modern reef]

so, Im learning multiplayer now, using the new package.

I want to render the player fullbody avatar only for other players and hide it from the owner. how is it usually done?

[crude ridge]

anybody know why i get this error when a client disconnects from host game?

[crude ridge]

also why cant i add functions/methods to my custom network manager and call them from other scripts?

this is in my custom network manager

[nocturne vapor]

During OnNetworkSpawn you check if IsLocalPlayrr is set to true and if yes deactivate it

[modern reef]

thanks. worked just fine.

[neon yoke]

Hi what does the DestroyWithScene boolean do and how can I influence it?

While I have disabled the Active scene Synchronization boolean my networkObject is still present in the next scene....

[silk reef]

I'm trying to use NetworkAnimator to sync my animations, is it expected that a float parameter in the animator would get synced or no?

[brazen citrus]

Hey everyone, I'm a bit lost as I've just split my player inputs in a server authoritative architecture and I've set my input in Update and my ProcessPlayerMovementServerRpc in FixedUpdate but I kept my Jump, Crouch and Look methods in update as I thought they wouldn't be used harmfully. Now the problem is my client cant jump anymore even though the only change is splitting the Call for processing the jump into a variable that stores the bool to jump which is then passed as a parameter to process the jump. thanks in advance.

https://paste.ofcode.org/39gph29267trmTnQEd24aGE

cleaned up the past of code to only include jump related methods

This debug returns true, so the client has a True for jumpInput :

    public void SetJumpInput(bool newJumpInput)
    {
        jumpInput = newJumpInput;
        Debug.Log("<color=yellow>[Client] SetJumpInput called with: " + newJumpInput + "</color>");
    }

but the server outputs that it's false in its debug

[brazen citrus]

trying to solve but nothing for now #archived-code-general message ...

[brazen citrus]

figured Apply Gravity() should've been a ServerRpc

Still unsure why it would overwrite server processes

or why the sync in NetworkTransform affects all axis when only 1 is enabled

[nocturne vapor]

Wit server authorative movement you disallow the clients to change rhe position at all, if you want to do this in anxthing remotly real time you will want to write your own network transform using client side prediction, as the latency is game breaking

[nocturne vapor]

NetworkAnimators by default ate server authoritative by default as well, so as long as you set the float in a rpc and using the network animator for triggers instead of the normal animator, everything should work as expected

[nocturne vapor]

It has a field in the scripting api
https://docs.unity3d.com/Packages/com.unity.netcode.gameobjects@1.6/api/Unity.Netcode.NetworkObject.html

[dreamy musk]

anyone know how to use the "small scale competitive multiplayer" in 2022?

im not sure how to use it, and i wanna use it to make multiplayer games

[clear jolt]

Hey, guys I'm facing a strange bug with Networklist, here is my code:

    public int InitialCoin = 400;

    [Header("Purchase")]    
    public NetworkList<int> Coins = new NetworkList<int>();
    public NetworkList<int> CoinsTotal = new NetworkList<int>();
    public NetworkVariable<bool> HasFirstGold = new NetworkVariable<bool>(false);

    [SerializeField] private int RealAmmo0SupplyLimit = 1500;
    public NetworkList<int> RealAmmo0Supply = new NetworkList<int>();
    [SerializeField] private int Ammo0SupplyLimit = 1500;
    public NetworkList<int> Ammo0Supply = new NetworkList<int>();
    [SerializeField] private int Ammo1SupplyLimit = 100;
    public NetworkList<int> Ammo1Supply = new NetworkList<int>();
    
    [SerializeField] private int RemoteSupplyApplyInterval = 6;
    [SerializeField] private int RemoteHPTimesLimit = 2;
    [SerializeField] private float RemoteHPSupplyAmount = 0.6f;
    public NetworkList<int> RemoteHPTimes = new NetworkList<int>();
    [SerializeField] private int RemoteAmmo0TimesLimit = 2;
    [SerializeField] private int RemoteAmmo0SupplyAmount = 100;
    public NetworkList<int> RemoteAmmo0Times = new NetworkList<int>();
    [SerializeField] private int RemoteAmmo1TimesLimit = 2;
    [SerializeField] private int RemoteAmmo1SupplyAmount = 10;
    public NetworkList<int> RemoteAmmo1Times = new NetworkList<int>();

    protected virtual void Start() 
    {
        if (!IsServer) return;

        .......

        foreach(var fac in Factions)
        {
            Coins.Add(InitialCoin);
            CoinsTotal.Add(InitialCoin);
            RealAmmo0Supply.Add(RealAmmo0SupplyLimit);
            Ammo0Supply.Add(Ammo0SupplyLimit);
            Ammo1Supply.Add(Ammo1SupplyLimit);
            RemoteHPTimes.Add(RemoteHPTimesLimit);
            RemoteAmmo0Times.Add(RemoteAmmo0TimesLimit);
            RemoteAmmo1Times.Add(RemoteAmmo1TimesLimit);
        }
    }

This part of initialization works well when using the editor to make a host and client. But when I'm using a release version to make the host, this list seems not been initialized and on the client side it shows ''out of index".

And by the way, I was using this override function in its child class, which looks like below:

    protected override void Start()
    {
        base.Start();

        if (!IsServer) return;

        foreach(var fac in Factions)
        {
            SmallBuffAdditionalEXP.Add(0);
        }
    }

[nocturne vapor]

Try OnNetworkSpawn instead of start

[clear jolt]

Yeah I tried this but no use, using the Debug and found this part of code didn't get conducted.

Now modified to this, having a separate function was just another try to see why this did not get operated.

[nocturne vapor]

Is factions empty at that init moment? That is odd

OnNetworkSpawn should get called properly

[clear jolt]

I bumped into another issue which may become a reason to this.

[clear jolt]

Yeah this was pretty strange

While the initialization issue's cause remains unknown. Here is a new issue maybe the block to it's initialization.

My NPCs are calling OnSpawn() events to sign up in gameManager. But now it's throwing errors.

KeyNotFoundException: The given key 'RMUC2024_GameManager' was not present in the dictionary.
System.Collections.Generic.Dictionary`2[TKey,TValue].get_Item (TKey key) (at <07ba9f98d9794cf19aca0392570e5637>:0)
Unity.Netcode.NetworkBehaviour.__endSendServerRpc (Unity.Netcode.FastBufferWriter& bufferWriter, System.UInt32 rpcMethodId, Unity.Netcode.ServerRpcParams serverRpcParams, Unity.Netcode.RpcDelivery rpcDelivery) (at ./Library/PackageCache/com.unity.netcode.gameobjects@1.7.0/Runtime/Core/NetworkBehaviour.cs:113)
GameManager.SpawnRefereeServerRpc (System.Int32 robotID, Unity.Netcode.ServerRpcParams serverRpcParams) (at Assets/Scripts/Game/GameManager.cs:319)
GameManager.SpawnUpload (System.Int32 robotID) (at Assets/Scripts/Game/GameManager.cs:312)
RefereeController.OnNetworkSpawn () (at Assets/Scripts/Game/RefreeSystem/RefereeController.cs:98)

Here the 'RMUC2024_GameManager' is the inherited class of my base GameManager. I didn't really get what this error really means.

The previous initialization happens in my parent class - GameManager. While the one I was using in scene is its inherited class RMUC2024_GameManager.

This part of errors are thrown out by my NPCs which call events and finally hit the ServerRpc in GameManager. But it throws a strange error that says 'RMUC2024_GameManager' is not present in the dictionary. My question is what dictionary it's talking about?

[zinc sedge]

hello, i would like to load a scene though the NetworkManager.SceneManager
but, the scene is from an assetbundle
i get the fellowing error

Scene 'Assets/Mods/LethalAPI/Scenes/BlankScene.unity' couldn't be loaded because it has not been added to the build settings scenes in build list.

it work perfectly when loaded with the normal SceneManager

[sharp axle]

Addressable scenes are not yet supposed. It's in the roadmap though

[zinc sedge]

you mean the with Addressables package ?
i don't use it and shouldn't need it
the scene is from an asset bundle

even with the normal SceneManager i don't use Addressables
that work fine with the scene's path while the assetbundle is loaded

[shrewd hollow]

How would I send a byte[] to another person using a NetworkVariable?
The Unity forum answer isn't really explaining this.

[sharp axle]

You would use a NativeArray
https://docs-multiplayer.unity3d.com/netcode/current/advanced-topics/serialization/arrays/

[shrewd hollow]

How do I rewrite this such that Unity doesn't give me any red texts?

[spring pilot]

anybody know what might be causing this? just started working on some network stuff for testing in a separate project today and this has started to occur. got no idea what it has to do with, my prefab list is correctly selected in the network manager and also I have a single network object contained within it

no matter what I do it happens immediately after I try and run the project

[feral kelp]

What is best programming language for socket programming?

[iron mason]

this is more networking as in multiplayer games - the discord doesn't really have a "meeting people" networking channel but the #📖┃code-of-conduct has some links to forums for it, you might have better luck there 🙂

[wet copper]

Does anyone who knows how to program multiplayer using fusion have any idea why I'm getting this error?

[neon crystal]

Hi. I'm using Photon to make a game. I'm just wondering how I can stop network lag?

[sharp axle]

Unless you invent a time machine, you can not stop lag. You can only work around it. I don't use Photon but I thought they had some client prediction component

[warped pilot]

What is the best way of a Bullet System ?

[teal cedar]

This is bad. I am developing FPS shooter using NGO. Should I use entities and NFE instead of it?

If yes then where should I learn it. Or I should believe that NGO will become more advanced with built-in client side prediction systems?

[sharp axle]

You really have to go all in on DOTS if you use N4E. It's a super neat system and a completely different style of programming. But if all you need to client prediction, then I'm not sure it's worth the hassle. NGO is not going to get a client prediction system but it's possible to write your own.
Unity is working on a Unified Netcode that will give the best of both worlds but it's super early with no release estimate.
If you want to learn about DOTs then check out the Turbo Makes Games YouTube channel and #1062393052863414313

[teal cedar]

Okay, I looked at dots and it is complicated. So I think the best for me is to continue with NGO and then later when Unified netcode is released then dive into it.

[waxen quest]

I am using Unity Relay and Netcode. How can I know if the host internet is crashed or relay is stopped? I want to stop hosting if Relay or internet is crashed.

[waxen quest]

In my case when host is disconnected from internet. The relay users doesn't disconnect and host and all clients just stay paused.

I want to Shutdown the network manager when this happens

[gentle drift]

Hello, I am working on multiplayer tank game, and I have this code for despawning the tankObject and spawning some particles when it dies. If a client calls the DestroyTankServerRpc() it all works fine but if the host calls it I get
[Netcode] Deferred messages were received for a trigger of type OnSpawn with key 30, but that trigger was not received within within 1 second(s). UnityEngine.Debug:LogWarning I am not sure what causes the warning

https://paste.ofcode.org/mNAmQPXrFw7Uf8ysc2PWbQ

[warped pilot]

    [SerializeField] private StarterAssetsInputs StarterAssetsInputs;

    private PlayerInput PlayerInput;

    public override void OnNetworkSpawn()
    {
        base.OnNetworkSpawn();

        if (IsClient && IsOwner)
        {
            PlayerInput = GetComponent<PlayerInput>();
            PlayerInput.enabled = true;
        }
    }

    private void Update()
    {
        if (IsOwner)
        {
            if (StarterAssetsInputs.shoot && GunSelector.ActiveGun != null)
            {
                GunSelector.ActiveGun.Shoot();
            }
        }
    }```

What is wrong here ? If I shoot with the Client my Host is shooting ..

[sharp axle]

If the host does not respond within the timeout window the relay should automatically be closed and all clients will disconnect.

[sharp axle]

I'm pretty sure this happens when the object is destroyed before the RPC gets received

[gentle drift]

But I destroy the object inside of the RPC

[waxen quest]

The NetworkManager will shutdown?

[sharp axle]

I don't know where these RPCs are located but you are despawning then sending a clientRPC. If it's going to a despawned object then that could cause issues

[sharp axle]

It's supposed to, yes

[gentle drift]

I have tried commenting out the ClientRPC but it still gives the same warning

[waxen quest]

Oh I'll check it out. Thanks mate

[waxen quest]

It didn't shutdown in host. It did shutdown in all connected clients

[patent iris]

Hi all. I am facing a problem where other clients are not able to see the HOST moving.

Basically clients can see all other clients moving, and the host or server is also tracking/seeing everything, BUT all clients cannot see the host moving. Only the host sees the host moving.

Anyone know why?

[white ledge]

I want to Add spatial audio chat in Unity WebGL but unable to find the solution for this
I have experience working with Vivox in past but Vivox doesn't give the support for WebGL on the other hand Photon Voice can be a solution but according to it's documentation it doesn't work on Safari browser (as of my latest knowledge)
So, can anyone guide me how can I achieve this?
Because I believe it's possible

[unique venture]

so im making my game have multiplayer and this is my script that does the players animations and the animation is messed up for multiplayer it doesnt sync and when one person does it both do
here is my code https://pastebin.com/REDaBeDB

[unique venture]

not sure if this has anything to do with my problem
https://pastebin.com/VM9qtQu1

thats a error im getting

[coral sail]

Yes so i have tried that, i tried to instantiate a player objrct through server in OnClientConnected callback, but nothing happens, if i send serverRpc through Client to server to spawn a object, server isnt responding nothing is happning

[river summit]

is it possible to save certain room ID's(Strings) to a certain string array and sync that array through lobbies ?
(here's what I am trying to do since this may not be the best approach.):

Players can Choose an Option in the lobby that will affect the whole way the game works, so i need a list for every room made with every choice(Basically a list for each option) and then based on what the current player chose, when they join a random room i want that room to have that option already on..

summary : the player chooses the language of the game he will join in the lobby and when he joins a random room i need him to join a room with the language he chose.

[sharp axle]

If you are using Unity Lobby service then yes. That can be saved as public Lobby Data and can be queried.

[river summit]

oh- i forgot to mention, no i am using PUN2

[stiff ridge]

This is very simple to do: You can use multiple room lists (in Photon terms: Lobbies). You can create a lobby per option and create / find rooms in those. That is the easiest way to handle it.

Here is the doc for this topic. Check out the Default Lobby Type (that's all you really need).
Note: Your clients don't have to join a lobby to find rooms in that list or to create them associated in one. There is a parameter for the TypedLobby in most matchmaking operations.
https://doc.photonengine.com/pun/current/lobby-and-matchmaking/matchmaking-and-lobby

[river summit]

so what your saying is that i make a lobby for each option(language)?

[stiff ridge]

Yes.

[river summit]

but the language is being set by the player in the lobby scene already- does that matter ?

[stiff ridge]

You need the language as value, when you do this, so it should work fine.

I take it the user selects a language from an enum / list, right?

[river summit]

well- a UI dropdown, but yeah same thing ig

[stiff ridge]

Then, yes. You take that value, turn it into a string and use it as name for a lobby (Photon term for room list).

[river summit]

hmm... ill expirement a bit and be back if i figure it out or smth

[river summit]

yooooooo i got it to work!

[river summit]

thx bruv really appreciated

[waxen quest]

I am having trouble with Unity Lobby, Relay and NGO.

I am making a game on mobile and when a client put the game in background for just 2-5 seconds. That client will get completely unsynchronized from everyone. Even the scenes will get out of synchronized. (Maybe disconnected from relay but no callbacks)

NOTE: This only happens with Relay and NGO. Running them locally works completely fine in this case.

Can anyone help me with this

[amber trench]

there are not enough details to generalize some fixes for you. in my experience, the vendor packages need a lot of bespoke development for realtime mobile games, if you want the game to be actually playable

[patent iris]

bump

[patent iris]

Can anyone explain to me why this is failing to send the HOST's state/position to other clients.

It works when clients are connected to just a server, all clients can see each other's movements. But once I use a host, the host's movement is not being sent to all other clients

[waxen quest]

I tried this with Editor also. I paused the editor as a client. And after 2-5 seconds i resumed it and the editor too got completely desynchronized.

This is only happening with Relay Integration. Testing in LAN works completely fine as expected

[sharp axle]

The host won't be doing any prediction since it's always caught up. Timer.ShouldTick is probably always false on the host

[sharp axle]

You can change the relay time out.

[waxen quest]

How to do that can you tell please?

[sharp axle]

Pretty sure it's just on the relay transport in the inspector

[waxen quest]

Btw this happens sometimes but sometimes it works fine. This is a strange behavior

Is there a way to know if player got disconnected from Relay?

When the player gets de synchronized it dont disconnect. It stays there

The OnClientDisconnected does not gets executed

[sharp axle]

The client is getting disconnected from the network? Or on the host the client player is not despawning?

[waxen quest]

As soon as the client pauses like putting the game on background or editor play mode pause for 2-5 seconds. That client is getting de synchronized completely (Not disconnected). Nothing works on that client anymore (No scene syncs, rpcs, movement syncs)

[sharp axle]

That's odd. It should be treated as a network crash. The connection should timeout and disconnect

[waxen quest]

Yes. This only happens sometimes. Sometimes that player gets re-synchronized again but sometimes it dont untill rejoins that session

The only solution i have for now is to Shutdown OnApplicationPause

[unique venture]

anyone know why i get this error
https://pastebin.com/F0ZdMNG8

[waxen quest]

Same i too get these. But these dont come when setting Log level to Normal in NetworkManager

[waxen quest]

I got this error on Host side

Error Unity Received error message from Relay: player timed out due to inactivity.
Error Unity Relay allocation is invalid. See NetworkDriver.GetRelayConnectionStatus and RelayConnectionStatus.AllocationInvalid for details on how to handle this situation.
Error Unity Transport failure! Relay allocation needs to be recreated, and NetworkManager restarted. Use NetworkManager.OnTransportFailure to be notified of such events programmatically.
Error Unity [Netcode] Host is shutting down due to network transport failure of UnityTransport!

But it was the client that paused not host

[waxen quest]

Is there a way to know if Relay allocation is expired or timed out so we can recreate allocation and re- assign it to Lobby

[short nexus]

public void startpairing()
{
if (PhotonNetwork.IsConnected && PhotonNetwork.IsMasterClient)
{
// Fetch all the players in the room
Player[] photonPlayers = PhotonNetwork.PlayerList;
List<Player> players = new List<Player>(photonPlayers);

        // Check if we have enough players for pairing
        if (players.Count >= 2 && players.Count % 2 == 0)
        {
            // Form pairs
            while (players.Count > 0)
            {
                Player player1 = players[0];
                Player player2 = players[1];

                    RoomOptions subroomOptions = new RoomOptions { IsVisible = false, MaxPlayers = 2 };
                    PhotonNetwork.JoinOrCreateRoom("abcd", subroomOptions, TypedLobby.Default);
                 PhotonNetwork.SetPlayerCustomProperties(new ExitGames.Client.Photon.Hashtable { { "Subroom", "abcd" } });
                players.RemoveAt(0);
                players.RemoveAt(0);
            }
        }
    }
}

here is the code , where i paired players , and then i want to send them in separate sub room, but the problem is , subroom is not creating and giving error of

CreateRoom failed. Client is on GameServer (must be Master Server for matchmaking) and ready. Wait for callback: OnJoinedLobby or OnConnectedToMaster.

can anyone help me in this problem
Thanks

[spring void]

[NetCode for GameObjects]
Does the method name of ClientRpc/ServerRpc affects the size of packets sent?

[short nexus]

Actually i am using custom properties instead of RPC

[sharp axle]

no, the only thing that gets sent are the parameters

[spring void]

Thanks. So I suppose I could do microoptimization by creating multiple similar methods instead of adding some extra parameters. But it makes me wonder: how does Unity know which method to run? 🤔

[sharp axle]

microoptimizations are the devil.
But the network manager indexes the RPCs and Network Variables to keep track of what goes where

[waxen quest]

@sharp axle May I know which version of Unity editor you use?

[sharp axle]

I'm using 2023.2

[waxen quest]

Okay

[coral shadow]

hey guys, i have a base ship network object. i want to instanciate different models for that ship based on a scriptable object.
so what i did is have an RPC on network spawn to let the clients instanciate the corresponding model as a child of my network object

the problem is that now the instanciated model game object lags behind the parent network object. any idea why?

[warped pilot]

public class PlayerAction : NetworkBehaviour
{
    [SerializeField] private PlayerGunSelector GunSelector;
    [SerializeField] private StarterAssetsInputs StarterAssetsInputs;


    private void Update()
    {
        if (!IsOwner)
        {
            return;
        }

        if (StarterAssetsInputs.shoot && GunSelector.ActiveGun != null)
        {
            FireNewBulletServerRpc();
        }
    }

    [ServerRpc]
    private void FireNewBulletServerRpc()
    {
        GunSelector.ActiveGun.Shoot();
    }
}```

Whats the problem here ? When I shoot Im shooting always with the client.

When I press shoot (left click) on the host I see the client firing

[severe briar]

Probably, you don't spawn the player with the client ownership.
I would assume, that it's done via a 'PlayerPrefab' field on the network manager.

[warped pilot]

Moving does work

[severe briar]

Because NetworkTransform is server authoritative by default
That's a bit complicated:
There's a delay between the server and the client
Clients usually ahead of the server, because they execute the input locally and then sending it to the server
The server gets it and uses the same movement code and executes it.
Then other players get synced.

Client -> Server -> Other clients

To deal with the delay and prevent cheating you'll have to code a client prediction system.
And there're a lot of stuff to predict:
Movement,
Raycasts,
Animations,
Spawn object

So, depending on the game it can get really complicated.

Or, if you don't care about cheaters, just create a client network transform

[warped pilot]

I have a client network transform

Moving is all working fine. But I think I found the problem

        {
            FireNewBulletServerRpc();
        }
    }

    [ServerRpc]
    private void FireNewBulletServerRpc()
    {
        GameObject go = Instantiate(TestPrefab, transform.position, Quaternion.identity);
        go.GetComponent<NetworkObject>().Spawn();
    }```

Ok it is working now. The only problem I have, as a host it spawns 7 prefabs, as a client one .. why does it as a host spawn 7 times ?

if (Time.time > ShootConfig.FireRate + LastShootTime)

Does this not work for Networking ?

[waxen quest]

What's the ideal way of setting these values?

Like for a game with 5-20 players what should be the value?

I found this on the forum is this correct?

MaxPacketQueueSize is (Clients * Clients + 10) * 2 (10 for a small buffer, 2 for the reliable message system)
MaxPayloadSize is: ((Clients + 10) * (sizeof(float) * 3 * 3) * 10 (10 again buffer, the flaot times three shall 
represent the Transform at the Client spawn, and times 10 just as safeguard not being to low)

According to this for a game of 20 players = (20 X 20 +10)X2= 820 MaxPacketQueueSize?

This cannot be set at runtime. We must have to set before starting host

[sturdy pike]

Hi can I ask a question?

Im urrently learning Photon Quatum and I have this issue regarding to data synchroization in DSL.

I crreated data on OnInit and saved the said data on Global

my target is when new players joined it, the received the data Global and no longer stops the OnInit to not replace the data in Global

but that seems to be not working, can I ask for alternatives or is there a fix for it?

[waxen quest]

I suggest joining Photon Discord as there are dedicated channels for each Photon Product where community and Photon team help each other

[patent iris]

Thank you! You were right

[patent iris]

Although I'm not sure I understand why

[sharp axle]

When you are doing client prediction the server is the source of Truth. There is nothing for it to predict. The client on the server (the host) is already perfectly in sync with the server

[patent iris]

That makes sense. I think I'm confused though why it wouldn't tick based on my code setup. Maybe I'm not fully understanding my NetworkTimer class (that I basically just copied from Youtube :D)

My understanding is that every player and the server is just saying "hey, if a certain amount of time has passed between frames on my local computer, then it's time to tick"

[sharp axle]

I think I watched that tutorial too. I'm not sure why everyone feels the need to make their own tick system. NGO already has Tick and Network Time

[patent iris]

Should there only be 1 NetworkTimer class that all players use? Right now I have everyone creating a new NetworkTimer I think

[sharp axle]

Each client keeps track of its own.
https://docs-multiplayer.unity3d.com/netcode/current/advanced-topics/networktime-ticks/

[patent iris]

thank you

[grim nova]

Anyone has any idea about why/how this is happening?

I'm just trying to spawn a pretty simple prefab. The client should spawn the prefab by calling a ServerRpc which calls a ClientRpc. The host is doing fine and spawning the prefab for both Host and Client. But the client it's not spawning the prefab and the host is logging errors like this.

Here the class that i'm using in my attempt to make the client spawn a prefab

using Unity.Netcode;
using UnityEngine;

public class TestPrefabSpawner : NetworkBehaviour
{
    [SerializeField]
    private GameObject _NetworkPrefabToSpawn;

    public override void OnNetworkSpawn()
    {
        Logger.Info($"Spawned with Network.");
    }

    private void Update()
    {
        if (!Input.GetKeyDown(KeyCode.Return))
            return;

        if (IsOwner)
        {
            if (IsServer)
                SpawnPrefabClientRpc(LocalPlayer.Transform.position, OwnerClientId);

            if (!IsServer)
                SpawnPrefabServerRpc(LocalPlayer.Transform.position, OwnerClientId);
        }

    }

    [ClientRpc]
    private void SpawnPrefabClientRpc(Vector3 position, ulong id)
    {
        var instance = Instantiate(_NetworkPrefabToSpawn, position, Quaternion.identity);

        instance.GetComponent<NetworkObject>().SpawnAsPlayerObject(id);
    }

    [ServerRpc(RequireOwnership = false)]
    private void SpawnPrefabServerRpc(Vector3 position, ulong id)
    {
        SpawnPrefabClientRpc(position, id);

    }

}

Any help will be 100% appreciated

[waxen quest]

Any ideas anyone?

[silver phoenix]

Im tryna download parrelsync. is it supposed to take like more than 10 minutes?

[sour fiber]

hello

Hello, I have two network objects and transform objects. One of them is HealthBar. I am trying to make HealthBar the child of my other network object, but the "HealthBar.GetComponent<NetworkObject>().TrySetParent(transform, false);" appears in the photo. not working(return false).

[teal cedar]

What is better? Thousand of bullet netcode objects or each player will have pre warm pool of non-networked bullets and then when someone shoot then handle it through RPCs?

[sharp axle]

Object Pooling will almost always be the better choice. especially for short lived objects like bullets

[teal cedar]

But what is better? Network pool or local pool activated by RPCs

Simply, should be bullets network objects?

[earnest hinge]

What could be a reason for objects showing up on host but not on clients?

[teal cedar]

Because you instantiate it locally?

[earnest hinge]

Don't think so

[sharp axle]

Is there a reason for them to be network objects? If not then they probably shouldn't be

[teal cedar]

To synchronise position? That's the only thing why it needs to be networked

[sharp axle]

are they moving in anything other than a straight line?

[teal cedar]

They are now moving in straight line

[sharp axle]

Are the ship's child objects being seen on the clients?

[sharp axle]

then they don't need to be syncd. they can just be calculated locally

[earnest hinge]

No, only the parent which is spawned in the script that calls BuildShip()

[teal cedar]

👍, but later I want to add bullet drop, that can be still calculated locally?

[sharp axle]

I'm pretty sure that you can not spawn a child object like that. It has to be separate then reparented after its spawned

[sharp axle]

There is no reason bullet drop can't be calculated

[teal cedar]

@earnest hinge Ship prefab must be network object. Is it possible for you to split that child away from that prefab and then spawn that child? That might work

[teal cedar]

Thank you!

[earnest hinge]

Sorry the names aren't very clear, shipPrefab is just a reference to a prefab which the ship created is based on, first I spawn the parent which holds all the parts of the ship and then the children are instantiated, spawned and reparented

[teal cedar]

Is that parent network object?

[earnest hinge]

Yes I spawn it before I spawn the children

Any ideas @sharp axle

[sharp axle]

Not really. if its being spawned unparented then it should show up on the clients

[honest brook]

[Netcode] [DestinationState To Transition Info] Layer (0) does not exist!
How to fix this error

[silver phoenix]

Im trying to use parrel sync. When I click new clone it just takes me to unity hub. How do I fix this?

I get all these errors. Is it cuz the unity hub is in a different drive than the project? i have no idea

[junior sapphire]

SOLVED: Daft question but not sure where to ask. How do I install the latest experimental version of Netcode for Entities? Using Add Package from Git URL and com.unity.netcode just gives me version 1.0.17

Do I need to use this URL? https://github.com/needle-mirror/com.unity.netcode.git

aha! Yes that got it. All good 🙂

[severe briar]

They're not errors, but logs.
Just notifying you, that a folder link was created.

"Symbolic links are advanced shortcuts in Windows 11 and Windows 10 that can point to a file or folder, redirecting applications to access them as if they were in a different location."

[honest brook]

how to fix this?

[nocturne vapor]

You can take windows out of the statement, they have been a standard on unix based systems like linux for ages as well

[tawdry stump]

Adding multiplayer on my small remake demo of the MMO lineage2. Server written in java (java.net.ServerSocket)

[nocturne vapor]

Looks nice

[severe briar]

Maybe you didn't set the network transport in the network manager
Or you're missing the first transport (at index 0), try to reimport the package

[honest brook]

it only shows when changing animation

when host player changes animation this error shows for client player

[weak plinth]

Is it possible to make a peer-to-peer multiplayer game using nothing but Steamworks API (or Steamworks.NET) and not having to pay for servers at all?

[severe briar]

Oh, yeah, I see

// If there is no state transition then return
            if (animationState.StateHash == 0 && !animationState.Transition)
            {
                return;
            }

var currentState = m_Animator.GetCurrentAnimatorStateInfo(animationState.Layer);
            // If it is a transition, then we are synchronizing transitions in progress when a client late joins
            if (animationState.Transition && !animationState.CrossFade)
            {
                // We should have all valid entries for any animation state transition update
                // Verify the AnimationState's assigned Layer exists
                if (m_DestinationStateToTransitioninfo.ContainsKey(animationState.Layer))
                {
                    
                }
                else if (NetworkManager.LogLevel == LogLevel.Developer)
                {
                    NetworkLog.LogError($"[DestinationState To Transition Info] Layer ({animationState.Layer}) does not exist!");
                }
            }

Seems like state dictionary is not supplied with the animator values for some reason

It happens after deserialization,

public void OnAfterDeserialize()
        {
            BuildDestinationToTransitionInfoTable();
        }

So something is wrong with either of these:
NetworkObject
NetworkAnimator
SceneManagment

Can't tell more without prefab hierarchy

[severe briar]

If you don't have persistent data, then yes.
If you have, well, it depends.
But you still will have to pay a hundred bucks for the game to release on steam, so it's not free already.

[weak plinth]

Yes I know about the game submission fee. Thanks.

Could you also do this with the Epic Online Services? Or Apple Game Center? And is there something free like this for Android/Google since they discontinued their multiplayer APIs on Google Play Game Services in 2020?

[severe briar]

Yeah, you just will have to change the transport.
EOS is free afaik.
Can't tell about others

[weak plinth]

Transport?

[severe briar]

Yeah, the transport layer, which is used for the netcode communication.
Facepunch (steamworks) is one of them

[weak plinth]

Aaahh ok. Many thanks.

[sharp axle]

Steam has a p2p network you can use but their docs are garbage.

[weak plinth]

Is Epic's Online Services's Documentation better?

[sharp axle]

If you are using NGO then there are a couple of Steam Transports you can use that make it way easier

[sharp axle]

No clue. I've never looked into them

Honestly, you aren't likely to go past the Unity Relay free tier even after you launch your game

[severe briar]

Actually, you can if did something wrong
I've spent 140MiB just with 2 players playing at 64 tick

[weak plinth]

@severe briar @sharp axle Honestly I don't know anything about Unity Relay. Can't I just use Steam's Datagram Relay?

[sharp axle]

Sure

[teal cedar]

Guys, do you know any tutorials for unity multiplay and matchmaker?

[sharp axle]

https://www.youtube.com/watch?v=FjOZrSPL_-Y&pp=ygUQdW5pdHkgbWF0Y2htYWtlcg%3D%3D

[teal cedar]

Okay, I will try it, thanks anyway

[crude ridge]

do you not leave your lobby when you run NetworkManager.shutdown?

[teal cedar]

Is this good? https://github.com/Unity-Technologies/com.unity.services.samples.matchplay

[sharp axle]

You do not. The lobby service is separate from NGO

[crude ridge]

How should I leave then?

[sharp axle]

That's the official sample for Multiplay and Matchmaking. Its about as good as it gets

[sharp axle]

https://docs.unity.com/ugs/en-us/manual/lobby/manual/leave-a-lobby

or you can use the Relay Integration
https://docs.unity.com/ugs/en-us/manual/lobby/manual/relay-integration

[crude ridge]

Ye I alreadey am using relays

[teal cedar]

Does it cover all features that samyans YouTube tutorial has?

[crude ridge]

so how should i handle lobby disconnects if im using relay?

[sharp axle]

You add the player's AllocationID to the Lobby Player data. then when they disconnect from the Relay it will also leave the lobby

[crude ridge]

And then if I add the allocationID, will it auto remove from lobby?

[sharp axle]

yep

[crude ridge]

dope

time to figure out how tf to do that now

[sharp axle]

its part of the UpdatePlayerOptions
https://docs.unity.com/ugs/en-us/packages/com.unity.services.lobby/1.0/api/Unity.Services.Lobbies.UpdatePlayerOptions#Unity_Services_Lobbies_UpdatePlayerOptions_AllocationId

[crude ridge]

how do you get the player AllocationID ?

[sharp axle]

You get it when you join the relay

[crude ridge]

my lobby/relay logic is like this

            Lobby joined = await Lobbies.Instance.JoinLobbyByIdAsync(lobby.Id);

            JoinAllocation alloc = await RelayService.Instance.JoinAllocationAsync(joined.Data["Relay"].Value);

            Singleton.GetComponent<UnityTransport>().SetRelayServerData(new RelayServerData(alloc, "dtls"));

            Singleton.StartClient();```

i join the lobby before i join the relay

cuz i need the relay value from the lobby, which is only visible if you've joined it

ig i could make it public so that u can see it's value before you join lobby?

[sharp axle]

alloc.AllocationID is the ID you would set. You can set it after the player joins the lobby

[crude ridge]

isn't alloc.AllocationID the same for all players tho?

[sharp axle]

I'm not sure how it works on the back end. But the allocation id is used to associate the player with the relay connection

[crude ridge]

I see

do i only need to do this for the client?

or do i need to do it on the host as well

[sharp axle]

Its probably not needed for the host. But I would add it to all players anyways

[crude ridge]

Interesting

Btw, do you know why sometimes my client never connects?

THis is what it usually looks like

But sometimes it says only the top 2

And it's just stuck in the menu, without any errors

But other times it works if I just reload the game or something

should I run toString?

[fading rover]

Get ready for 64gb ram flex

[plain parcel]

Hi, I'm need a facepunch expert x), I'm looking for a solution to kick a player from a lobby, I saw an action "SteamMatchmaking.OnLobbyMemberKicked", anyone know something about that ?

[neon yoke]

I have moved a dynamically spawned networkObject to the DontDestroyOnLoad Layer. Then I switch to a new scene.
The object is moved to that scene away from the dontDestroyOnLoad. Any ideas and what could cause this behaviour?

[mortal inlet]

So I'm currently on my phone rn and unable to properly reshare stuff but I've asked for photon pun 2 related help in the advanced coding chat, it would mean a lot if someone could help me out here with it

[severe briar]

I think you can't use DDOL with NO, don't know about photon, but in NGO the NO won't even spawn.
So, in case of photon, it would syncronise it to the current network scene, I guess.

[crude ridge]

So I set the allocationId and the person is still not auto disconnected from the lobby

            Lobby joined = await Lobbies.Instance.JoinLobbyByIdAsync(lobbyID);

            JoinAllocation alloc = await RelayService.Instance.JoinAllocationAsync(joined.Data["Relay"].Value);

            Singleton.GetComponent<UnityTransport>().SetRelayServerData(new RelayServerData(alloc, "dtls"));

            await LobbyService.Instance.UpdatePlayerAsync(joined.Id, AuthenticationService.Instance.PlayerId, new UpdatePlayerOptions
            {
                AllocationId = alloc.AllocationId.ToString()
            });

            Singleton.StartClient();```

@sharp axle any thoughts?

[sharp axle]

No, this should work. How are you disconnecting the client?

[crude ridge]

NetworkManager.Shutdown()

But it also doesn't work if I just close the game screen/exit test mode in the editor

[ocean frigate]

Well guys I'm using photon multiplayer networking system... And I want that on the head of each player there would be a random name tell me how to do this

[winged anvil]

Hello! I want to implement this reward system on my app, but I'm using firebase authentication with login and registration, if I follow this, will this still be save on the user's account? or should I incorporate firebase to the reward system? I'm planning to just follow the tutorial 😅

https://youtu.be/ZoNDcgacF2M?si=cYUMuXaQ9asrkM6R

[river meteor]

anyone knows why is this happening? I am trying to parent player to rotating platform. You can see on dev text that parent object is set and unsetting randomly

       private void OnTriggerEnter(Collider other)
    {
        NetworkObject plrNetwork = other.GetComponent<NetworkObject>();


            AttachPlayer_ServerRpc(plrNetwork.NetworkObjectId);
            //other.gameObject.transform.SetParent(transform);
  
    }

    private void OnTriggerStay(Collider other)
    {

    }

    private void OnTriggerExit(Collider other)
    {
        NetworkObject plrNetwork = other.GetComponent<NetworkObject>();

            AttachPlayer_ServerRpc(plrNetwork.NetworkObjectId, false);
            //other.gameObject.transform.SetParent(null);


    }

    [ServerRpc(RequireOwnership = false)]
    private void AttachPlayer_ServerRpc(ulong playerId, bool attach = true)
    {
        GameObject pPlayer = NetworkHelper.FindPlayerByNetworkId(playerId);

        if(pPlayer != null)
        {
               if(attach)
            { 
            pPlayer.transform.SetParent(this.transform);
                }
                else
            pPlayer.transform.SetParent(null);
        }
    }

It happens only when second player join in. That is causing a lot of stuttering when connected player wants to jump on the platform. I don't know if it is normal behaviour in NGO or my code is f*cked up somewhere else...

[mortal inlet]

I need help with some code I have spent 3 hours creating (ik skill issue) and I dont even recognize words anymore, basically, I am creating a wow like trainer system where you walk up to a trainer and left click on them, they then give you the class they train in (mage, warrior etc.). This would be very easy if I wasnt making a multiplayer game using Photon, so basically here is the code for the trainer: '''using Photon.Pun;
using UnityEngine;

public class MageTrainerTest : MonoBehaviourPunCallbacks
{
    [SerializeField] bool isMageTrain; // Indicates if this trainer can train mages

    private bool hasInteracted = false; // Flag to track if interaction has occurred

    private void OnMouseDown()
    {
        if (!hasInteracted && photonView.IsMine) // Check if interaction hasn't happened and if this is the local player's view
        {
            PlayerController playerController = photonView.GetComponent<PlayerController>(); // Get the PlayerController of the interacting player

            if (playerController != null && playerController.isNeutral && isMageTrain)
            {
                playerController.photonView.RPC("BecomeMage", RpcTarget.AllBuffered); // Call an RPC to become a mage for all players
                hasInteracted = true; // Set interaction flag to true locally
            }
        }

        if (!hasInteracted && !photonView.IsMine)
        {
            photonView.TransferOwnership(PhotonNetwork.LocalPlayer);

            PlayerController playerController = photonView.GetComponent<PlayerController>();

            if (playerController != null && playerController.isNeutral && isMageTrain)
            {
                playerController.photonView.RPC("BecomeMage", RpcTarget.AllBuffered); // Call an RPC to become a mage for all players
                hasInteracted = true; // Set interaction flag to true locally
            }
        }
    }
}```
and here is the relevant code on the player controller script:

    public void BecomeMage()
    {
        isMage = true;
        isNeutral = false;
    }```

[neon yoke]

I have not tried my build yet will do and report back

[sly fable]

Using Netcode for gameobjects. I get a lot of delay between the client and the host. Upped the tick rate and other such things. Any other tips?

[severe briar]

Upping the tickrate higher than 60 won't help much
64 = ~16ms delay
128 = ~8ms delay
(In case if there're no interpolation and buffer)

So, you'll have to implement client side prediction to remove the delay locally.
If you're making some kind of fps/fighting game, then rollback is also required.

[river meteor]

Changed interpolation method in rigidbody to interpolate and it's gone. That' was the solution...... wasted whole day

[crude ridge]

            await LobbyService.Instance.UpdatePlayerAsync(lobby.Id, AuthenticationService.Instance.PlayerId, new UpdatePlayerOptions
            {
                ConnectionInfo = alloc.ConnectionData.ToString(),
                AllocationId = alloc.AllocationId.ToString()
            });``` look like this doesn't properly allow lobby to auto disconnect either...

[austere harness]

Heya, I was wondering if anyone know an asset/repo that would fit my problem?

We have a project where a couple clients and a couple hosts will be online at the same time in a local network. Any one of the hosts should be able to pick a client from a list of all available clients and pair up with them.

From what I understand we could use Unity's Lobby system, but we're hoping we could avoid it, due to the running costs.

[ocean frigate]

Is photon the only best multiplayer networking system? Is it better than fishnet?

[crude ridge]

No

[nocturne vapor]

it is the best in the same way linux is the best, it depends on what you want
or a less nerdy equivalent, ask 10 people about what is the best food and you will have 12 answers

[teal cedar]

Should the server handle damage calculations and client handles visuals right?

Btw, @sharp axle , thank you so much. Now my shooting mechanics is much more smoother. I did it like this. When player shoots then call server RPC and spawn trail client. Spawn trail client will just handle visuals and server handles damage, also server RPC will call spawn trail client on all clients except for local player

[nocturne vapor]

yes that is always a good idea, as it is very easy to sync and has automatic server authority

[sharp axle]

Rule Zero of networking is to never trust the Client

[quick perch]

Does netcode GameObject not work with Entities net code? Currently their assemblies are conflicting becuase they are both called Unity.Netcode.Editor
I was thinking that I could mix the two though where needed

[teal cedar]

I would like to mix both of them too.

[quick perch]

I don't see why they couldn't I mean maybe a port conflict, but you should be able to change that or use a reverse proxy.

[sharp axle]

At the moment you can not. They are in process of making a Unified Netcode that will incorporate both

[quick perch]

Ah ah, so in 5 years good to know

[cold jackal]

How do you detect that a client has disconnected from server?

[crude ridge]

How do I check if a user actually joins a relay properly in NGO?

[hushed wing]

@austere yacht Hey man, could I grab a lesson on using ngrok a temp testing solution? Willing to donate. Cheers

[winged sandal]

i have come for guidance. So, im using rigidbody's in my game, and im wondering what the problem is for the client when it comes to just simply pushing another non-player object with a rigidbody.
The host can move around the block just fine, with a mass of 2 and the object block with a mass of 1.
But when the client tries to move the block, its as if the mass is increased by 10. Why is this happening?

[hushed wing]

Does any of your code scale instead of static values?

[winged sandal]

Dont think so lol

[sharp axle]

If you are using NGO with client network transform and network rigidbodies, then non owners get set to kinematic.

[winged sandal]

Yeah, i got the same result anyway no matter what kind of combination of network rigidbodies and normal rigidbody, really weird stuff

[last sky]

hey, what should I look into if I wanted to make a game for 2 players to compete against each other? was thinking P2P connection but I couldn't find if unity supports something like this

[sharp axle]

You can use Unity Relay or any other relay service if you want.

[warped pilot]

Hey I have a question, im new at networking. maybe someone can help me here:

How do I instantiate a ScriptableObject in Networking ?

[sharp axle]

You don't. The way I do it is to keep all the SO's in a master list on a manager class then you can just pass the index of that list around.

[hushed wing]

my tcp and udp ports seem to be activate but i still cant ping that port. isp confirms they do no port blocking due to not training their lvl1 to deal with it

wtf

it gets a new udp port every time it launches

[wheat bramble]

I've been stuck on this issue for a week or two now and it's pretty annoying. I have a menu scene with a Network Manager and I'm using Lobby and Relay together. When my host creates a game everything works fine and people can join, but when the host leaves by destroying the network manager, shutting it down, and returning to the menu, if they host another game people can join the relay and lobby but it's as if scene network objects aren't spawned and using Spawn doesn't do anything. I send RPCs through my scene objects I get the "Deferred messages were received for a trigger of type OnSpawn with key 3, but that trigger was not received within within 1 second(s)" error which I think means that the object being sent an RPC isn't spawned. Can anyone help me with this?

[hushed wing]

Yo lets go, do i just add my external ip address to the client build now and that should work?

[river meteor]

why my player which joins to server(host) have checked these variables? When he is not a server or host

[abstract copper]

are you looking at that inspector on the host application? Even if it isn't the host's player?

as in, are you looking at another player's info from the perspective of the host here?

those values will reflect the state of the local client. So, if you are looking at someone else's player from the perspective of the host, it will say IsServer and IsHost

[river meteor]

yes

[abstract copper]

then what you seeing makes sense

[river meteor]

yeah I was checking it because I had another problem with running method from quantum console but it seems problem is that QC is invoking methods from MonoBehaviour

[severe briar]

Probably, because network manager was destroyed
Move it into a boot scene

Boot -> Main Menu -> Lobby -> Game
When the host disconnects return to the Main Menu scene
And host again
Main Menu -> Lobby -> Game

[wheat bramble]

I make sure the Network Manager is destroyed before going back to the menu. This only happens to Scene Network objects that are not using the Singleton pattern and keeping the same instance throughout the game. To work around this I’ve moved the necessary RPCs to a separate Singleton object and seems to be working like this for some reason.

[river meteor]

how can I prevent StartClient() to spawn player prefab?

[wheat bramble]

I like to just not have a player prefab and then use SpawnAsPlayerObject to spawn my player that way I have more control over it

[weak plinth]

I'm confused, using netcode for gameobjects, calling a serverRpc function but it errors on the client machine and just says only the server can spawn network objects but i though a serverRpc is run on the server/host (ignore the photonprefabs bit I am using NGO, the game previously used photon though)

    void spawnPlayerManagerServerRpc(ulong clientID)
    {
        GameObject playerManager = Instantiate((GameObject)Resources.Load("PhotonPrefabs/PlayerManager"), Vector3.zero, Quaternion.identity);
        playerManager.GetComponent<NetworkObject>().SpawnWithOwnership(clientID);
    }```

[wide girder]

Does it actually run on the client?

[weak plinth]

it does not run on either no. I tried changing it so instead of spawning in my playermanager, I just set it as the player object (previously was calling spawn playermanager from a monobehaviour) however now when the playermanager tries to instantiate the player in the same way, (this time it is a network behaviour using a network object) i still get an error so the issue clearly isnt mono/networkbehaviour

I am very confused on why it doesn't let me instantiate anything through RPCs without just saying "only server can spawn networkobjects"