archived-networking

[unkempt crow]

Actually pretty helpful 👍

[lavish walrus]

But isn't this even more exposed than hardcoding, or does unity have an option for encryption?

[spring crane]

Are you trying to send logs from clients to your email?

[lavish walrus]

That is correct. I have it working already with system.net.mail, but my current method requires the client to have the sensitive SMTP server info

[spring crane]

Is there a specific reason the client needs to send this to email? I would consider sending the data to an HTTP server and deciding there what to do with it.

[vital hill]

How can i Sync in unity objekts that are already in the scene? with mirror;

I have a gameobjekt in my scene, with a key press i can add child objekts. now how can i take the childobjekts and sync them to the client with mirror.

i tried NetworkServer.Spaw() and NetworkServer.SpawnObjects(). also i tryed to clone the gameobjekt withe the children but that also didnt work.

[pliant bluff]

does in-scene networkobject automatically spawn on other client?

[sharp axle]

If you are using NGO, yes. As long as Scene Management is enabled on the Network Manager.

[pliant bluff]

so what if both client having the same networkobject betfore starting host-client

[sharp axle]

You shouldn't see anything happen but the client scene objects get respawned

[pliant bluff]

i see

thank

[pliant bluff]

can i set networkvariable beforespawning?

i know it gonna say that i couldnt edit it before it spawn

work around?

[tame slate]

The functionality is not built in, as far as I know.

Why do you need to access a NetworkVariable before the object is spawned?

[pliant bluff]

just thinking it would be more convenience to spawn object with value set by the server

like spawning an enemy with half health

[sharp axle]

It will technically work but the real way is to use OnSynchronize()
https://docs-multiplayer.unity3d.com/netcode/current/basics/networkbehavior-synchronize/#pre-spawn-spawn-post-spawn-and-synchronization

[pliant bluff]

ooooo nice

[lavish scaffold]

I am making an online ultimate tic tac toe game

but when i am calling Rpc from the host side it is not updating on the client side

Is it necessary to make my play board a network prefab?

[tame slate]

Send the function?

[lavish scaffold]

sending

[lavish scaffold]

oh i forget
my bad

[Rpc(SendTo.Everyone)]
    public void SetActiveGridRpc(string grid)
    {
        if (activeGrid == -1 && gridState[GetGrid(grid)] == 0)
        {
            activeGrid = GetGrid(grid);
            LoadGrid(GetGrid(grid));
        }
    }

[tame slate]

No reason that shouldn't be called on the client. What changes are you expecting to see?

[lavish scaffold]

I want it so that when a grid is selected
it is highlighted on both sides
and is loaded in the play area
the total board is of 9 * 9 and the playboard is of 3 * 3

3*3

[pliant bluff]

is in-scene object is automatically own by server regard of whether its on client or server?

if so how to make the in-scene object own by the client ?

frogThink

[server rpc] in onnetworkspawn?

[lavish scaffold]

by in scene object do you mean local objects?

[pliant bluff]

network object in the hierachy

[lavish scaffold]

if it is in hierarchy
then both server and client will have there own instance of that object

[pliant bluff]

yeah but they both own by the server

[lavish scaffold]

send a serverrpc from the client side to demand changes from the server

[pliant bluff]

yeah but its alittle convolutedd

[lavish scaffold]

you cant make direct changes from client side to server side objects
and if you want to have seperate objects for the server and client use the Spawn() function to spawn it on the client side

the client will be able to make changes to that object
but if you want them both to be synced
then you would have to use ServerRpc to make the similar changes on the server side too

[pliant bluff]

nvm im dumb

use NetworkManager.Singleton.LocalClientId instead lol

turn out i just needd the client id

[lavish scaffold]

if it works then there's no problem in that

[lavish scaffold]

oh

what game are you working on?

[pliant bluff]

puggimath

just some coop game

rouge like ...

[lavish scaffold]

oh, nice

[lavish walrus]

Yup I was thinking that might be the best way too. Cheers

[gray peak]

Hello guys, hope you are having a good day!
Are there any know issues/complications when using NGO + Relay and trying to have a mobile player as a host?
We have tried:

• PC Host / PC client -> Sucess
• PC Host / Android client -> Success
• Android host / pc client -> Fail
• Android host / Android client -> Fail

Hence why I believe the issue lies with Mobile trying to host the game.

[sharp axle]

Mobile platforms can host with no problem. Hosting takes more resources than just being a client which might be where the problem lies.

[gray peak]

Turns out quantum console had a missing reference that caused expensive async code to be called every frame, which was dwindling performance to the point of a crash, the hosting failing was a consequence not a cause xD. But thanks

[wispy thorn]

Hey, i am trying to get the local player but this is always null, also the network manager spawns the player and player prefab is set

NetworkManager.Singleton.LocalClient

[tame slate]

When are you trying to get this?

[wispy thorn]

OnNetworkSpawn

[tame slate]

of what object?

[wispy thorn]

on an object which is spawned by the host

and also tried to debug log that on network spawn on the player itself

An workaround that i did is on network spawn for the player owner is this

[tame slate]

Yeah, that looks like a cleaner solution anyway. Is this the player object you're running this code on?

[wispy thorn]

yes

[tame slate]

Hey, i am trying to get the local player

[uncut wren]

using NGO, and I'm trying to get the player to throw a grenade.
The grenade needs to be spawned and "given" back to the weapon manager component, so it can track it

i guess the flow would be
player presses grenade throw button
server spawns grenade for the player
player releases grenade throw button
server launches grenade with force, etc etc etc

is there a less delay-inducing way to do it than sending an rpc to spawn it, and then an rpc to give the reference back to the player?

[tame slate]

Giving ownership of the grenade to the player who threw it when you spawn it will probably make getting reference easier

[uncut wren]

i feel like i'd then need to find all the grenades in the scene, see which ones are owned by that player, then filter out the ones that haven't been thrown

[tame slate]

I would store it somewhere locally.

[uncut wren]

There's no way for the client to "know" when its been spawned on its own, though

[tame slate]

That's why I suggested giving ownership to the player who threw it.

In OnNetworkSpawn() of the grenade, you then can use OwnerClientId to find the owner and tell them to store reference.

[uncut wren]

i think I have figured out a roundabout way to do it

Is there a way to pass a network prefab via rpc?

[tame slate]

Network Prefab?

[uncut wren]

yeah, or an unspawned network object/game object

the server has no way of knowing which grenade the player is trying to spawn

[tame slate]

You'd most likely want to use something like an enum to tell the server which grenade type is being requested to be spawned

[uncut wren]

that's

gonna be a big enum

I'm also going to have to map each grenade prefab to each enum entry

[tame slate]

Just do it by index

public enum GrenadeType
{
  GrenadeOne = 0,
  GrenadeTwo = 1,
  GrenadeThree = 2
}

[uncut wren]

I don't know how many grenades im going to have yet

[tame slate]

Why does that matter?

You can add more without issue

The server would just store a list of the grenade prefabs, and do something like:

var grenadeToSpawn = grenadeList[(int)grenadeType];

[uncut wren]

to avoid hardcoding the numbers of grenades, the player and server both have a reference to the grenade prefab, and then the player finds the index of that grenade prefab

because i know for a fact im going to forget which number is which

[tame slate]

@uncut wren This isn't hardcoding. This line of code will never have to change. All you have to do any time you make a new grenade is add to the end of the enum, and drag and drop the new prefab to the end of grenadeList.

[sage ore]

I can't get my unity app to receive data over udp

using UnityEngine;
using System.Net;
using System.Net.Sockets;

public class UDPListener : MonoBehaviour
{
    private UdpClient clientData;
    private int portData = 50505;
    private IPEndPoint ipEndPointData;
    private System.AsyncCallback AC;
    private byte[] receivedBytes;

    void Start()
    {
        InitializeUDPListener();
    }

    public void InitializeUDPListener()
    {
        ipEndPointData = new IPEndPoint(IPAddress.Any, portData);
        clientData = new UdpClient(portData);
        
        Debug.Log($"UDP client listening on port {portData}");
        
        AC = new System.AsyncCallback(ReceivedUDPPacket);
        clientData.BeginReceive(AC, null);
    }

    void ReceivedUDPPacket(System.IAsyncResult result)
    {
        receivedBytes = clientData.EndReceive(result, ref ipEndPointData);
        ParsePacket();
        clientData.BeginReceive(AC, null);
    }

    void ParsePacket()
    {
        Debug.Log($"Received packet from {ipEndPointData}. Length: {receivedBytes.Length} bytes");
        // Here you can add code to process the receivedBytes as needed
        // For example, converting to a string:
        string message = System.Text.Encoding.UTF8.GetString(receivedBytes);
        Debug.Log($"Message: {message}");
    }

    void OnDestroy()
    {
        if (clientData != null)
        {
            clientData.Close();
        }
    }
}```
i can receive the data with a similar script if i don't run it in unity, but as soon as i try to use it in unity it won't receive the data
so unity must be blocking it somehow i just can't figure it out

[waxen quest]

Is it better to upgrade from Unity Transport 1.4.1 to 2.3.0. Since the package manager does not show update and Unity Transport is installed as dependency because of NGO.

Should I update it?

[waxen quest]

2.3.0 does not show Release tag on it

[sharp axle]

If you don't need any of the features or bug fixes in Transport2.0 then no, you don't need to. Though it is recommended to use the latest versions

[waxen quest]

I was wondering about the R tag which is not on v2.3.0

[sharp axle]

I believe that depends on the version of the editor. In Unity 6 it has the release tag

[waxen quest]

Ohh I see

[wet ginkgo]

Hey guys im learning NetworkVariable but i got an issue where it just doesnt update the variable for clients, im using multiplayer play mode to test.
Pressing T update the variable ONLY for the one who pressed it

[sharp axle]

Network Variables are tied to the Network Object. So only that player will get the Speed change

[wet ginkgo]

so i have to create the variable somewhere else ?

[sharp axle]

Using an RPC would be easier for that case. If you put it on an inscene object then only the server would be able to change it

[wet ginkgo]

like i create the variable on the server ?

[sharp axle]

Or you can use a RPC to set the speed on each player

[fading stag]

Hey I was having some problems with lag after I switched my game to relay and I was just wondering if the fact that I'm running both host and client on the same pc would be significantly contributing to that

[tame slate]

Relay will introduce more latency than testing on LAN or using a dedicated server

Host and client being on the same PC will be more networking intensive, but shouldn't really cause significant lag I would say

[fading stag]

ok so if I'm planning to launch with relay, the lag I'm getting would be basically the average experience?

[tame slate]

Most likely, yes. Doesn't hurt to do some testing to confirm your latency isn't out of an acceptable range. Relay is a capable solution for many types of games. If your latency is crazy high, most likely something else is wrong.

If you're allowing it to autoselect a region, make sure it's doing so correctly and is selecting a region that's close to you

[fading stag]

ok, great. I know I have some optimization issues since its my first time networking so it's probably mostly from that

thanks

[marsh musk]

does NGO work with the new input system?

[sharp axle]

It works great. Though you're not really sending input events over the network

[marsh musk]

Do i still need to make the input actions in awake?

[sharp axle]

It works like normal. But you should disable the component if it's not the local player

[marsh musk]

so I fiddled with it and

I don't know when I need to set it's refrence to itself, normally I would just have the input actions equals new input actions, but I'm getting some timing(?) issues where on enable and on disable run before the input actions has gotten a refrence to itself

er go creating null refrence exceptions

does it need to intialize in on network spawn instead?

[sharp axle]

I'm using the Player Input component and just disabling that component in OnNetworkSpawn() if its not the owner

[marsh musk]

@sharp axle what's the difference in player input and

InputActions inputActions;
void Awake(){
inputActions = new InputActions();
}

[sharp axle]

It handles the input actions for you
https://docs.unity3d.com/Packages/com.unity.inputsystem@1.10/manual/PlayerInput.html

[weary stag]

how do people recommend handing unit actions like a Move() action, an Attack() option or a CastSpell(Spell spell)? I've tried the command pattern but recently learnt that that doesn't work because you cant derive from INetworkSerializable.

[sharp axle]

Usually, I make each action an RPC. Or if you really need a generic PerformActionRPC(), send an enum as a parameter and parse it on the other side. The spell example could also be a enum for spell type and then an INetworkSerializable for any spell data you might need to send

[weary stag]

ah right im silly 🤦 was over engineering it in my head for no reason haha

tyvm

[sacred schooner]

You're talking about using the generated c# input, which is what I do. Let me share some snippets of how I did it and basically have to never worry about it

I create a static instance of the generated input (this is to avoid issues, when more than 1 script want to access some actions, an easy hack to never worry about it)

public static class InputManager{
    public readonly static PlayerInputGenerated PlayerInput = new();
}

then in the playercontroller

public override void OnNetworkSpawn()
    {

    [...codecodecode...]
    if(!IsOwner)
        {
            return;
        }
     InputManager.PlayerInput.Player.SetCallbacks(this);

     InputManager.PlayerInput.Player.Enable();
     InputManager.PlayerInput.UI.Disable();

    base.OnNetworkSpawn();
    }

so you set the callbacks to be received only by the "local player" after it is spawned and knows its the one

[sacred schooner]

so you can be sure that any function called by the callbacks, like

public void OnDash(InputAction.CallbackContext context)
    {
        if(context.performed){
            dashComponent.Dash();
        }           
    }

are called only by the local player, so no need to perform IsOwner checks.

[rapid oak]

is mirror still the way to go or has it changed over the years

[austere yacht]

there are, and always have been, multiple options that you can choose from depending on your goals & needs.

[carmine geyser]

Hello! Quick question: I am using NGo + Relay + Lobby, and I want to handle when a client crashed (meaning they do not send any disconnection messages). My issue is that right now, NGO timeout the player correctly, but the lobby does not. What is the correct way to check if a client is not responding anymore and remove them from the lobby?

[austere yacht]

There is no way to know what happened to the client. Typically you’d use a timeout to drop them when you don’t receive a heartbeat for N seconds.

[carmine geyser]

Ok thanks! Since NGO and relay have their own timeout implemented, I was wondering if something similar exist for lobby, but I guess not !

[tame slate]

Lobby does have a timeout functionality. You just have to lower the time in your dashboard. I believe the minimum is 10 seconds.

By default I believe it’s quite long.

[carmine geyser]

Indeed I found out after posting my initial message, unfortunately, even when putting 10sec, if I alt-F4 the client, the lobby player count stays at 2. I must be missing something quite important haha

[sharp axle]

You'll need to use lobby events to see when that player times out. Its fairly long by default to allow the player to reconnect.

[oak flower]

@dry maple Save statements for a blog, please.

[dry maple]

Hello Fogsight, I thought what I said was fine 😄 It's important to show the weakness of certain popular solutions since released games (such as Havoc which released very recently) prove them to be problematic and potentially project-ruining for some types of games like that.

[oak flower]

If you want to make comparative review statements, make them somewhere where they can be debated by all parties.

[dry maple]

Sorry, not sure what you mean. I just made a reply to someone, it's not intended to be a review.

But if such discussion is not allowed, it's fine. Though I'd like to know which rule/guideline prohibits it so I don't repeat it?

[oak flower]

If you are unable to judge when you are dispensing a subjective opinion I suggest you won't post it then. Next time will result in a moderation action.

[dry maple]

Could you answer my question: But if such discussion is not allowed, it's fine. Though I'd like to know which rule/guideline prohibits it so I don't repeat it?

[oak flower]

I has been made clear to you previously that no comparison based discussions are welcome here. Yet you continue with it.

[dry maple]

Sorry I don't recall that. But if that's what you want, it's fine, I will not compare.

[ornate creek]

So, I am using PhotonTransformView to sync the positions of all the Coins on my Carrom Board between both the players. So, when the turn switches and the ownership of the coins' PhotonView gets transferred to the player whose turn it is, there is a slight glitchy effect where the coins randomly move a bit then get back to the right place as if it's synchronizing between the scenes. How can I fix this?

https://cdn.discordapp.com/attachments/1250024800756301838/1269592945670099078/CarromDuels_Bugs.mp4?ex=66b0a012&is=66af4e92&hm=38896e3d9480b3e1e6cff049347d2388ee2d9bb5b11988d746f602e52d4f56a0&

You can look at 1:20 and 2:40 to see what I mean

I tried adding Interpolation but doesn't chnge anything.

[tame slate]

Can you not just make the coins owned by the server?

[ornate creek]

How do I do that, i wanted to do that but was unsure on how to do it

[tame slate]

I don’t use Photon, so I’m not sure how to specifically.

But I’d say that’s definitely what you’d want to do. Then you just have each client send their input for the server to shoot their coin and all the transforms in their physics can be done by the server for consistency.

[ornate creek]

Yeahh, I also wanted to do that but I was unable to figure it out

[sharp axle]

I dont use Photon either, but you would use RPCs to send the vector 3 of the client input to the server

[marsh musk]

I have an issue with clients connecting at I'm not sure how it happened, it used to work fine, but now the host works fine, then if a client connects then the host freezes but is still being updated on the clients screen

and the client is fine

[wet ginkgo]

Is there any other way to run code on the server beside rpcs ?

[tame slate]

What solution are you using? And why do you need an alternative to RPCs?

[ornate creek]

RPCs are like functions that are called right? The movement should be live as their positions change every frame. Basically like in the video I sent and there is also physics. So, RPCs will help me regarding this?

[ornate creek]

I have a development on this, that jittering only happens in the previous PhotonView's owner's side. So, if Player 1 is the owner and player 2 requests the ownership, the jittering happens to play 1 when the ownership is transferred. Jittering as in, the objects go back to their initial position then come back to the correct position.

Edit: I removed Photon Transform View and added a script to handle the synchronization but it still happens 😔

[sudden birch]

Yall should check out PlayFab for online gameplay and management. Its quite awesome.

Im using it to implement a TCG I designed and its really been great.

[gray peak]

Hey guys, I have an issue:

...
         else
            {
                Debug.Log("Sending Move to Server");
                SendMoveToServerRpc(new int[] { _currentMove.MoveCoords[0], _currentMove.MoveCoords[1], coords.x, coords.y });
            }

[ServerRpc(RequireOwnership = false)]
    private void SendMoveToServerRpc(int[] move)
    {
        Debug.Log($"Inside SendMoveToServerRpc, turn manager: {ServerTurnManager.Instance != null}");
        ServerTurnManager.Instance.ValidateMove(move, NetworkManager.Singleton.LocalClientId);
    }

This was previously working as intended, my changes were that NetworkManager, ServerTurnManager and SessionManager are now being spawned in another scene and added to DontDestroyOnLoad. But now, I don't get to the Debug inside the RPC, only the previous one, and in the console I get:
"KeyNotFoundException: The given key 'ThisClassName' was not present in the dictionary."

Anyone got any ideas of what the issue might be?

[mighty dirge]

can someone help me out pls

can soneone help me out pls

[sharp axle]

The problem might be putting those in Don'tDestroyOnLoad

[gray peak]

Might've been, ended up using NGO's scene manager rather than the "normal" one and it worked

[mighty dirge]

when ever i click the button leave room i get the responce "Operation leave room not allowed on current server(Master server) can someone please help. i also get the warning "Photonnetwork.currentroom is null and that you dont have to call leaveroom() when your not in one . i know that i am in a room tho.

[weak plinth]

What is networking?

[stiff ridge]

I replied in the unofficial Unity discord.

[green wadi]

I am pretty new to NGO and I am trying to make an object that acts sort of like a game manager class over the network. I need a way to access it through a singleton sort of how NetworkManager can be accessed so I am currently using this logic to get it, however I feel like the way I am doing it is probably wrong.

In my NetworkController class I have:

public static readonly NetworkVariable<ulong> singletonID = new();

And then to retrieve it:

public static NetworkController Singleton()
{
    return NetworkManager.Singleton.SpawnManager.SpawnedObjects[singletonID.Value].GetComponent<NetworkController>();
}

And then in an OnNetworkSpawn method in a NetworkBehaviour attatched to my player I have:

if (IsHost || IsServer)
{
    Debug.Log("Spawning Network Controller");
    var prefab = Instantiate(networkController);
    prefab.Spawn(true);
    NetworkController.singletonID.Value = prefab.NetworkObjectId;
}

[sharp axle]

I try to avoid singletons in general, but you can just make it a normal Singleton as an in scene network object. There is no need for a network variables.

[soft bridge]

Hey all. In NGO, Is there a way to send packets between client without a NetworkObject or a NetworkBehaviour? My project is mostly not dependant on GameObjects (Data and GameObject visuals are very decoupled), but from what i see, RPC would need to be under a NetworkObject and Custom Messaging requires a NetworkBehaviour.

I can also hack it by having a surrogate game object for each client, but i'd rather not go that route if possible

[sharp axle]

Custom messages don't need a network behavior or network objects at all. The samples here in the docs only use them for the OnNetworkSpawn convenience
https://docs-multiplayer.unity3d.com/netcode/current/advanced-topics/message-system/custom-messages/

[soft bridge]

I see it now, just need to use CustomMessagingManager
thanks for the pointer!

[weary stag]

My code for turns:

public struct Turn : INetworkSerializable {
    public bool hasMoved;
    public bool hasAttacked;

    public void NetworkSerialize<T>(BufferSerializer<T> serializer) where T : IReaderWriter
    {
        serializer.SerializeValue(ref hasMoved);
        serializer.SerializeValue(ref hasAttacked);
    }
}

public class TurnManager : NetworkBehaviour
{
    public NetworkVariable<Turn> turn;
...

What I'm trying to do:

turnManager.turn.Value.hasMoved = true

How can I set hasMoved to true in my server RPC for moving a unit? Do I have to basically reinstantiate the turn object each time I want to change a single variable like turn = new Turn(...)? I've tried looking at the docs but I don't really understand

is it a custom NetworkVariable I need?

[sharp axle]

Yes. the way you currently have it, you need to make a new Turn object. You could also just have 2 NetworkVariable<bool> on you player object

[weary stag]

alright ill make a new turn object 🙂 I'm planning on adding more bools to turn so ill keep it in the turn object. Thanks a ton for the help again

[restive plinth]

using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using Unity.Netcode;

public class NetworkUI : MonoBehaviour
{
    [SerializeField] private Button hostBtn;
    [SerializeField] private Button clientBtn;
    [SerializeField] private Button serverBtn;
    [SerializeField] private InputField nickFld;

    private static HashSet<string> usedNicknames = new HashSet<string>();

    private void Awake()
    {
        hostBtn.onClick.AddListener(() => {
            if (IsNicknameValid(nickFld.text))
            {
                usedNicknames.Add(nickFld.text);
                NetworkManager.Singleton.StartHost();
            }
        });

        clientBtn.onClick.AddListener(() => {
            if (IsNicknameValid(nickFld.text))
            {
                usedNicknames.Add(nickFld.text);
                NetworkManager.Singleton.StartClient();
            }
        });

        serverBtn.onClick.AddListener(() => {
            NetworkManager.Singleton.StartServer();
        });

        nickFld.onValueChanged.AddListener(delegate { ValidateInput(); });
    }

    private void ValidateInput()
    {
        if (nickFld.text.Length > 12)
        {
            nickFld.text = nickFld.text.Substring(0, 12);
        }
    }

    private bool IsNicknameValid(string nickname)
    {
        return !string.IsNullOrEmpty(nickname) && nickname.Length <= 12 && !usedNicknames.Contains(nickname);
    }
}

Why can't I drop my InputField into inspector?

[soft bridge]

could be that you are using TextMeshPro's input field, in which case, you should be using TMP_InputField instead of InputField

[soft bridge]

forgot to reply^

I am a bit confused with reading this documentation
https://docs-multiplayer.unity3d.com/netcode/1.10.0/advanced-topics/fastbufferwriter-fastbufferreader/

Does this mean that FastBufferWriter does not dynamically resize, and we have to manually resize them ourselves?

Does anyone have an example of a dynamically growing buffer?

[restive plinth]

thanks, ima try it

worked, thanks!

[carmine geyser]

Hi! I might need a bit of help because I am going crazy: I am using the classic combination of NGO/Lobby/Relay/Auth, and I am able to connect player together and play in the same session perfectly. HOWEVER if the Lobby host crashes, the clients never receive the Player Left lobby event, and the lobby itself is also never updated with the player leaving. Anyone managed to handle a host crashing with this combo of packages ?

[tame slate]

LobbyDeleted doesn't get fired when a host crashes?

[carmine geyser]

No because the lobby isn't deleted, what is supposed to happen is the host is automatically transfered to another user, but it is not happening since the lobby does not register the host has left

[tame slate]

Right. Forgot about automatic host migration in Lobby

[deep shale]

Hi! Question.. In Distributed Authority mode, is it possible to restrict the spawning of certain NetworkObjects to be allowed by the session owner only?

[tame slate]

I've yet to find a situation where an application quitting/closing/crashing doesn't eventually remove the player from the lobby (although I primarily have used Lobby on mobile)

how are you "crashing" your application?

[carmine geyser]

Its on Meta Quest, but I am quitting it through the OS, similar to Task Manager kill is I think

[soft bridge]

Doesn't NGO have some kind of timeout? Regardless i usually just make my own pinging implementation so i can detect disconnection at my own pace (eg: have a more relaxed ping interval in lobby vs in-game)

[sharp axle]

There is not. Each client is their own authority so they can always spawn their own objects. You can have them call RPCs which can check for session owner to run.

[soft bridge]

quick question is there a way to get the server's client id from the Network Manager?

or is it only for the UnityTransport? (if so, how would it work on other transport?)

[deep shale]

Thanks for your tip! How will using an RPC help?
Because if they can spawn their own objects then its possible for a cheater to inject code that would spawn them right?

[sharp axle]

It's NetworkManager.LocalClientId I think

[soft bridge]

that would be the current client's id no?

I have another client that needs their connected server's client id

[sharp axle]

Right, if they hack the client then nothing you can do in that case

[sharp axle]

The server id is always 0

[tame slate]

If the Host isn't timing out, a pinging or heartbeat system won't solve his problem. The host crashed and can't disconnect themselves and no other client can force the host to disconnect.

[soft bridge]

ah good to know, thanks

[soft bridge]

Wait, so when the host crashes NGO doesn't auto disconnect and the server is still responsive?

[tame slate]

He's talking about Lobby specifically I think, not NGO

The host is not timing out, leaving the rest of the clients in an unresponsive lobby with no new host being selected

[sharp axle]

The lobby host will eventually time out.

[mint anvil]

[Netcode] [Invalid Destroy][RTS Networking(Clone)][NetworkObjectId:2] Destroy a spawned NetworkObject on a non-host client is not valid. Call Destroy or Despawn on the server/host instead.

i am spawning an object with a network object, and then loading a new scene (with networking ofc), but then this happens and the object is only destroyed on the client not the server

[sharp axle]

Make sure that only the server is calling Spawn() and NetworkManager.SceneManager.LoadScene()

[soft bridge]

quick question
In my project, when you enter by default it does StartHost()
And then when you want to connect to another host, it does Shutdown(), waits for OnServerStopped, and then does StartClient()

Is this correct? or am i supposed to use a whole new NetworkManager?

[sharp axle]

That should work fine

[soft bridge]

For some reason when i do this, OnClientConnected i print the networkManager.LocalClientId and both client and server is saying 0 (despite being on different clients/editor)

is it even possible to start a client and then having its id 0?

wait... is the client id only unique for its own client? not that it is unique for the whole connection? Did i miss something in the documentation?

[sharp axle]

The server/host client id will always be 0. If a client disconnects and reconnects then the client it will always increase by 1. Those ids do not get reused.

[soft bridge]

so technically the ids should be unique across connections, right?

In my screenshot though, Right is a host that has id 0 and Left is a client that connected to RIght (and i've confirmed that they do connect to each other) but the client's LocalId is 0, it's really weird and i'm not sure what causes this.

I guess i'll try experimenting on a separate blank project

[sharp axle]

Yea, every client that connects gets their own client id. The Onclientconnected callback should be giving you the proper client id.

[restive plinth]

Hello, I have faced an issue that when joining as next client, host's camera is stuck on it's player camera which is the right thing, and there is new player spawned when client joins, but client only sees that their game is frozen while in reality the host now controls new player even tho I check if (!IsOwner) return;

why does this happen?

Here are scripts

(sending files cuz characters for each are too long)

bruh discord doesn't allow me to send any file for some reason

[tame slate]

!code

[raw storm]

Posting code

📃 Large Code Blocks

Use links to services like:
https://gdl.space/, https://paste.ofcode.org/, https://hatebin.com/, https://paste.myst.rs/, https://hastebin.com/

📃 Inline Code

Surround code with three backquotes. Not quotation marks.
To format as C#, add cs to the first line:
```cs
// Your code here
```
Add a comment with a line number if there is an error message.

[restive plinth]

i did that

still too long

it says

I did use code block

[tame slate]

Use one of the links

[restive plinth]

https://hastebin.com/share/bohukujihi.csharp

Movement.cs

https://hastebin.com/share/unapuxocoq.csharp

NetworkUI.cs

https://hastebin.com/share/qopuxisowa.csharp

PlayerNickname.cs

https://hastebin.com/share/wajififixi.csharp

SerializableString.cs

[restive plinth]

to not cause confuse I am replying to help message

help will be appreciated

[tame slate]

@restive plinth how are your players being spawned?

[restive plinth]

network player prefab

player has Movement, camera, and PlayerNicknames.cs

[tame slate]

Hello, I have faced an issue that when

[lethal beacon]

playerID in body must match authenticated player```
After creating a lobby, when I exit play mode, start the game again and try to create a lobby, I get this error.

Here is my code https://pastebin.com/LbwDqQzs

[timber beacon]

Has anyone messed with Matchmaker and Relay instead of MultiPlay? Documentation seems to be lacking around Relay use with Matchmaker.

[mint anvil]

well yeah, the network object spawns on both just fine, but only when i load the scene i get the error and it gets destroyed (the scene is loading fine too except, yk, this error)

[soft bridge]

In case any1 is struggling here the same way that i did;
OnClientStarted is the wrong context to be checking if your client can already send messages, because at that point your LocalClientId is still 0

sounds obvious but did catch me offguard xP

[mighty dirge]

can someone help me out beacuse i am working on this game and when i tried to test the multiplayer it is not showing me any rooms for me to join even though on the game i have created an room. and when trying to join from the room ist i cant find it there

[pearl girder]

Haven't done a local server build for a while, but when I do a local dedicated server build on my windows machine targeting window platform with il2cpp backend chosen it builds, but when i run it i get "failed to load il2cpp" error and the process ends.

closest thing i could find on google was this https://discussions.unity.com/t/dedicated-server-build-for-linux-from-silicon-mac-unity-editor-fails-to-run/868567 but it mentions the issue about building from a mac or linux machine.

Any ideas?

uSing netcode for entities 1.2.3

[oak flower]

@pearl girder Don't cross-post. Remove the post when moving.

[deep tangle]

i need help with photon

[oak flower]

Then !ask an actual question what you need help with.

!ask

[raw storm]

🤔 Asking Questions

⛔ Before Posting
🔍Search the internet for your question! 🔍
⠀+ Use the API Scripting Reference and User Manual.
⠀+ This troubleshooting site for commonly posted issues.

• Please attempt to debug your issue.
• Find a channel by reading the name and description.
• Take a look at ⁠#🔎┃find-a-channel
• Read the pinned messages 📌
  -# For more posting guidelines, go to #854851968446365696

[rough folio]

if it's anything like what you talked about in #💻┃unity-talk, you do not need help with photon, but ask away I guess

[lethal beacon]

playerID in body must match authenticated player```
After creating a lobby, when I exit play mode, start the game again and try to create a lobby, I get this error.

Here is my code https://pastebin.com/LbwDqQzs

I cant find anything about this error on the net

[austere yacht]

Did you match the request’s player ID with the authenticated player’s

[lethal beacon]

Yeah

[austere yacht]

Do you have proof?

[lethal beacon]

new Dictionary<string, PlayerDataObject> { { "Name", playerDataObjectName }, { "Character", playerDataCharacter } });```

[austere yacht]

that doesn’t prove that the player ID is actually the authenticated one, or that any ID is authenticated at the moment.

You may have to re-auth that ID

[lethal beacon]

What do you mean by Player ID? If you are talking about the ID of the creator of the lobby or a player in the lobby, yes they match.

private Player playerData;
...
CreateLobbyOptions options = new CreateLobbyOptions();
options.IsPrivate = false;
options.Player = playerData;

public async void CreateLobby()
{
    Debug.Log(playerData.Id);
    Debug.Log(AuthenticationService.Instance.PlayerId);

Logs show they match @austere yacht

[austere yacht]

Im Talking about what the error message says

[lethal beacon]

If I knew what the playerID in the error message was it would solve the problem

[left elbow]

Hello guys, I'm having a synchronization problem, I'm using unity netcode and the Client Network Transform on the Player, Network Transform on the platform.
What is happening:

• I have a player that is synchronized between host and client, using the Client Network Transform

• I have a movable platform that uses NetworkTransform

• When the player stands on the platform he follows the movement of the platform and can move freely on top of it, this works on the host and the client
  THE PROBLEM:

• on the client screen, both the host and the client are synchronized on the platform, without sliding or getting in the middle of the platform

• on the host screen, the client slides and enters the middle of the platform when it moves on the Y axis
  I will attach the codes and a video that shows this happening.
  In the video, the left side (unity editor) is the client, and the right side (native application) is the host.

Player script: https://hatebin.com/emfgmdtqtm
Moving Platform: https://hatebin.com/wutluodqls
video: https://drive.google.com/file/d/1WdQs_H9rGNTFq_vEiSana5AXm7iWI8lG/view?usp=sharing

[sharp axle]

moving platforms are hard. The best solution might be to reparent the player to the platform. But that has its own issues
https://docs-multiplayer.unity3d.com/netcode/current/advanced-topics/networkobject-parenting/

[austere yacht]

should be the one you get from IAuthenticationService.GetPlayerInfoAsync().ID AFTER you have signed in.

it is likely that this ID is cached and persists accross sessions, but the signed-in state doesn't.

The API's signed in user could very well be undefined for your API/user token and to not leak secrets the API just pretends the name was wrong

[neat totem]

hey all, not sure if this is the right channel for this, point me elsewhere if so.

I'm working on a multiplayer project using mirror, but my main conern is that I want to be building my project with the idea of a headless dedicated host server in mind.

What design patterns/considerations should I have when designing my scenes/netcode for a dedicated headless server?

another thing I read was that it is possible to build a server backend as just a C# appliaction, or even C++, to communicate with unity over the network. has anyone here attempted anything like this?

[austere yacht]

if you're 100% on a dedicated server you can skip handling the "Host+Client" case (which makes stuff complicated). Also don't rely on anything graphical or GPU related on the server. I'd also aim to get that server running on an actual cloud server right away, it'll save you a bunch of woes if you need to retrofit your UX to the specific hosts flow/features.

[sharp axle]

Its not mirror but check out the docs here. there are some good tips here regardless of framework
https://docs-multiplayer.unity3d.com/tools/current/porting-to-dgs/

[neat totem]

I am, my usecase 100% require authoratative server

[neat totem]

I will read this, thank you for sharing

[austere yacht]

also if you do require authority, you likely want to compile any server code out of your client builds, so for that wrap all your server code in #if SERVER pragmas

this is much easier if you have partial classes with .server, .shared and .client parts

or just server/shared/client component NetworkBehaviours on the same game object

[neat totem]

in general my workflow should look like this:

1. player issues commands to units, these commands are batched and RPC to server every 1 second
2. server takes commands and updates values on units, then updateds postions for moves/targets for damage
3. only need to update units on local grid so interest management based on parent game objects

[austere yacht]

if this is turn based you should just send the player inputs to the server

[neat totem]

its real time just batched

things will be a bit slow

long ttk

[austere yacht]

well, if you can get away with some lag, just send the inputs to the server and have it do everything

that is certainly the simplest approach

but not always the nicest for the player

[neat totem]

idk how to model inputs to ther server, I'm not doing like wasdd movement, I'm clicking on a unit and right clicking on a grid to assing a destinaion positon

sry my typing is terrible today for some reason

[austere yacht]

you can represent all that with integers

each unit has an ID, each kind of input action has an ID

you dont need to send raw inputs, but if you worry about cheating, you should, and validate those agains what is actually possible for the player in its current state

[neat totem]

see I was working with photon right and I wanted to push this over input
namespace SpaceGame.DTO.Commands
{
public struct MoveCommandDTO
{
public int UnitId;
public int LocalGridID;
public Vector3 Position;
}
}
they told me 'my use case didnt fit with fusion'

so I thought this wasnt possible

I figured I could represent this as ints but i figured I would jsut batch these commands and RPC them to the server as an array

[austere yacht]

why would you manually batch them?

[neat totem]

from what I was reading frequent RPC are bad and should be limited in send rate. was going to batch to stop them from choking my server

[austere yacht]

then you may have misunderstood something

[sharp axle]

Try to avoid premature optimization

[austere yacht]

mirror does automatic batching, you just should not do more RPCs than you have actual messages

also don't send data in the RPC args that you don't need

[neat totem]

haha I'm very comforable with the vector math and game logic but still learning netcode

[austere yacht]

all your messages (RPCs) are aggregated into a tick and sent more or less together

[neat totem]

i see, so then I can jsut reduce the tick rate to achieve the same effect

[austere yacht]

yes

[neat totem]

well that much simpler haha

[austere yacht]

but only if you don't do it because its turn based

or you actually want to control that delay

its a very low-level thing, not something you would expose to your game design

[neat totem]

okay so if I want to send a move command over the network like the struct I pasted before, I just need to convert the vector3 into ints?

[austere yacht]

no, you can send the vector3

you just should not use reference types or strings

all your entities need/have an integer ID you can use to send references

[neat totem]

yeah I have everything working by ID already in my management calsses

[austere yacht]

thats the important bit

that goes a long way

[neat totem]

yeah syncing ints cheap, I know that

[austere yacht]

not just that, it makes everything much simpler

[neat totem]

I have been gathering info for about 2-3 days, you have been very helpful

I think I am prepared to start my net implementation

[spice breach]

What’s good networking package that have updates don’t break your game?

[sharp axle]

None of them should have updates that break the game. At least any breaking changes would be clearly labeled

[broken sable]

I'd reccomend Photon Fusion

[waxen quest]

Unity ngo v1.10 have some new methods but after updating it still don't have that methods. Those are OnNetworkPreSpawn, etc

[tame slate]

How are you trying to access them?

[waxen quest]

Like we do for OnNetworkSpawn, Despawn

[spice breach]

thank

[tame slate]

I have no issues using them.

[sharp axle]

You probably just have to restart the editor

[waxen quest]

It still doesn't work after restarting

[tame slate]

You sure you have 1.10.0 installed correctly?

[waxen quest]

Yeah It just updated with new LTS automatically

Ima try deleting Library folder

[sharp axle]

if its still not working, then delete the Library folder and restart

[waxen quest]

Yeah

[waxen quest]

It still does not work

[tame slate]

Can you show how you’re trying to define the functions and any errors you’re getting?

[sharp axle]

If there are any console errors, that can stop it from fully compiling

[waxen quest]

There are no errors. It's just like it never updated. It just not showing new methods

[waxen quest]

There are no errors, the project is perfect and payable

[sharp axle]

the only other thing it can be is Assembly Defines somewhere

[tame slate]

Not showing as in not showing in IntelliSense autocomplete?

[waxen quest]

The intelliSense works fine. The new updates in scripts also not showing in IntelliSense

[waxen quest]

I'll see what's wrong. Thanks for your time evilotaku and Dylan

[tame slate]

The new methods don't show up in IntelliSense either for me, doesn't stop me from using them

That's why I'm curious as to how you're trying to define them

[waxen quest]

Ohhh, I didn't tried to complete it since it was not showing on IntelliSense. I thought it doesn't exists

[tame slate]

Just try typing in the override definition, and if it doesn't error that means it's a valid override

[waxen quest]

Ah, I wasn't on system any more so I was just writing here

[waxen quest]

Yeah I will do this

[tame slate]

protected virtual void OnNetworkPreSpawn() { }

public override void OnNetworkSpawn() { }

protected override void OnNetworkPostSpawn() { }

These were all valid for me

[waxen quest]

Yeah, OnNetworkSpawn and Despawn works for me in intelliSense too just the new methods doesn't show

Thanks for your time Dylan

[sharp axle]

the new ones have to be protected not private or public

[waxen quest]

Ohh that's the issue!

I was just keep trying to get it on IntelliSense using public

[terse idol]

best free networkign solution that doesn't require port forwarding?

[ripe mesa]

fusion

[terse idol]

thanks

[ripe mesa]

all can be doable without port forwarding, by using relay sdk such as: Steamworks, EOS, and unity relay. OR client-app relay such as: ngrok, hamachi

but fusion is built-in

[jaunty shell]

Hey guys, I haven't done multiplayer before, I am making a fps shooter I know very original, and I want to implement multiplayer early on, so i dont face many issues

I have the controller built guns are not implemented yet, but I want a system that is scalable but not limited to an eco system like photon, etc. I want to implement dedicated servers like minecraft and cod4, where players can download server files and host the server themselves as well as official servers using quickplay which I will host myself.

What should I do and can you link any good resources to learn multiplayer?

[rustic lotus]

noob question, I'm trying to figure out how I can get two separate players detected in the same lobby (this is in the VR Multiplayer template) using parallel sync. I get this after I already have first player joined

[tame slate]

Unity anonymous Auth grants unique ID's by editor/build and machine

https://github.com/Unity-Technologies/com.unity.services.samples.game-lobby/blob/main/Assets/Scripts/GameLobby/Auth/UnityServiceAuthenticator.cs

Their sample shows how to get around this issue.

[rustic lotus]

Thanks, do you think 'multiplayer mode' in Unity 6 is a better approach?

I will test it out

[tame slate]

If you're referring to this:

https://docs.unity.com/ugs/en-us/manual/mps-sdk/manual

I would say yes. I haven't used it, but I've only heard good things about it so far. AFAIK, it is being designed to make simple Lobby/NGO/Relay implementations as easy as possible and is very much in active development to make it even better.

[rustic lotus]

Yes, it looks interesting, this is the other link I found on it: https://docs-multiplayer.unity3d.com/mppm/current/about/

[tame slate]

Oh, that's something different. But also useful.

It's ParrelSync built in to the editor, but faster, easier to use and more efficient

[rustic lotus]

I like the sound of that

[sharp axle]

You can us MPPM but you will still have to switch Authentication Profiles when connecting from the same PC

[timber beacon]

I haven't been able to get this working with Relay and WebSockets yet. When configuring to use WebSockets for the Transport, Relay doesn't get setup to use websockets, so you just get an error. Since you don't have any control over the relay allocation, it's seemingly a big gap. That said, it's super easy to implement and will remove some of the confusion new developers may have when trying to setup multiplayer in their game.

[tame slate]

Yeah, 100%. It's lacking customization in several areas. Why I made sure to say it's good for simple implementations.

[timber beacon]

So far, websockets is the only area that I think it's lacking. Everything else works great 🙂

[sharp axle]

Be sure to ask about this in the Dev Blitz next week. Seems like it should be a fairly easy add

[timber beacon]

I'll put it on my calendar, thanks for the reminder 👍

[olive mason]

Hello 👋 Here's something that got me stuck for a bit now, maybe someone has an idea!

I'm using Unity NGO 1.9.1 on Unity 2021.3.37f1. I first start a host using NetworkManager.Singleton.StartHost() then I'm loading a scene using NetworkManager.Singleton.SceneManager.LoadScene(sceneName, LoadSceneMode.Additive); and everything works great until I call NetworkManager.Singleton.Shutdown() upon exiting my first game session and attempting to load another. From that point on, after starting the host again, attempts to load the same scene again leads to the returned status of the loading method to be SceneEventProgressStatus: SceneEventInProgress.

What am I doing wrong?

For context, everything works fine without the Shutdown call, but from then on my NetworkManager IsHost is true, which messes up with a lot of the logic I have, as I ultimately would like players to be able to initialize a Host session or join another game without closing the game.

also the LoadScene() method crashes (after Shutdown and StartHost anew) with this Exception: Failed to find any loaded scene named PlayScene! in Unity.Netcode.NetworkSceneManager.GetAndAddNewlyLoadedSceneByName (System.String sceneName) (at Library/PackageCache/com.unity.netcode.gameobjects@1.9.1/Runtime/SceneManagement/NetworkSceneManager.cs:909)

[sharp axle]

Make sure that you are waiting the 10 seconds needed for Shutdown to fully complete before trying to StartHost() again

[olive mason]

the game goes through the menu and I start the new game via the interface. It's not 10s .. but several at least. Is there a way to check the state? I'm already awaiting await UniTask.WaitWhile(() => NetworkManager.Singleton.ShutdownInProgress); which only lasts one frame

[tame slate]

This may be exiting early? Not sure when ShutdownInProgress gets set after calling Shutdown()

May have to check that it's true before waiting for it to not be true

Because it should definitely be true for longer than a single frame

[olive mason]

maybe I can investigate that, but I just tried waiting for a full minute now, and I just got the same issue

[sharp axle]

NetworkManager also get put into DontDestroyOnLoad, you might end up with duplicate network managers

[olive mason]

afaik there's only one, it's initially in my loading scene and gets put into DontDestroyOnLoad. I'm only additively loading the scene containing the level

I also stumbled upong NetworkManager.Singleton.SceneManager.Dispose() and I'm not even sure what it does ^^ I don't know why I would have a SceneEventInProgress on the second load attempt. I'm tracking every SceneEvent in the game and the last one I receive is always UnloadEventCompleted for unloading the previous instance of the Scene

[rustic lotus]

thanks, I think I either need to modify one of the scripts shown in screenshot, or just create a script to switch authentication profiles and attach it to the XRI Network Game Manager object. Am I close?

[sharp axle]

What I do is right before SignInAnonymouslyAsync() I'll call AuthenticationService.Instance.SwitchProfile(CurrentPlayer.ReadOnlyTags()[0]);

just make sure the tags are unique to each clone

[rustic lotus]

thank you, I somehow got it all to work lol. Multiplayer play mode is looking nice

[mild torrent]

So I had a thought, my game is already a online game. It downloads some definitions for costs and stuff, but could I also define and download icons this way? Then save and load them to display on an Image component

[tame slate]

Yeah. I usually keep a lot if images/icons in an Amazon S3 Bucket and download them at runtime.

[mild torrent]

how do you handle the texture / sprite problem, right now most of my icons are loaded in as sprites but now I am working with Texture2D, should I just make a Sprite from each texture or change all Image to Raw Image?

[tame slate]

You pretty much want to use Raw Image whenever possible.

[mild torrent]

so it would be better to go through and replace all the Image components with Raw ones

at least for the dynamically loaded icons

[tame slate]

Yeah. Otherwise you’re creating sprites at runtime which takes longer and uses more memory.

[sweet junco]

I am working with Mirror and I don't know how to setup drop and pickup correctly. I have those two methods set up already and NetworkIdentity and NetworkTransform on item. Where can I find examples of this being done, or tutorials, because there is little to none on Youtube.

[tame slate]

https://mirror-networking.gitbook.io/docs/manual/guides/gameobjects/pickups-drops-and-child-objects

[sweet junco]

Read through it already and it wasn't really helpful.

[tame slate]

What are you trying to accomplish?

[sweet junco]

Just a simple pickup and drop.

And Interaction

Now when I pick it up it disapears.

[tame slate]

The guide link I sent covers that. If there are specific things you don't get, you can ask about it here.

[noble spindle]

Hello I'm trying to make a game with my own websocket multiplayer, and I show a bit of my code, and everyone seemed appalled that I worked with string, So I made some research and I wanted to know if instead of sending the data as string like that

ws.Send("GID"+GameID+positionString+"!"+rotationString+"IsAiming"+fpsController.IsAiming()+"IsWalking"+fpsController.IsWalking()+"IsRunning"+fpsController.IsRunning()+"IsHigh"+fpsController.IsHigh()+"IsReloading"+fpsController.IsReloading()+"$");

will it be better if I send the data like that ?

public void SendPlayerData(Vector3 position, float rotationY, bool isAiming, bool isWalking)
{
    using (var memoryStream = new MemoryStream())
    {
        using (var writer = new BinaryWriter(memoryStream))
        {
            writer.Write(position.x);
            writer.Write(position.y);
            writer.Write(position.z);
            writer.Write(rotationY);
            writer.Write(isAiming);
            writer.Write(isWalking);

            ws.Send(memoryStream.ToArray());
        }
    }
}

[latent imp]

Hello,
I am making a board game with a turn based multiplayer, how do i go about it for changing the turn from one player to another like if there are 4 to 6 players

[noble spindle]

it depend, what are you using to make your multiplayer ?

[sly lily]

Hey, im making a multiplayer shooter where the bullets are very slow and i wanted to add server rewind or "lag compenstation". I have not found a single tutorial on this and have no idea how to make it, does anyone know?

[tame slate]

There's a good explanation of it here:
https://developer.valvesoftware.com/wiki/Source_Multiplayer_Networking#Lag_compensation

Using NGO, a very simple starting point would probably mainly involve storing a list of colliders that represent players previous positions and making use of NetworkTime

https://docs-multiplayer.unity3d.com/netcode/current/advanced-topics/networktime-ticks/

[sly lily]

Yeah, but how does the server know how many ms it has to compensate?

[tame slate]

https://docs.unity3d.com/Packages/com.unity.netcode.gameobjects@1.10/api/Unity.Netcode.NetworkTransport.html#Unity_Netcode_NetworkTransport_GetCurrentRtt_System_UInt64_

[sharp axle]

That's a bit backwards. The server should not be compensating. Clients can forward predict where objects should be by the time any input packets reach the server. The clients are the ones who should be rolling back if mispredictions happen.

[tame slate]

That’s correct for client-side prediction and reconciliation.

I believe he’s wanting server-side lag compensation for his projectiles though which is something different.

[gaunt beacon]

anyone have any advice for making lobbies in unity service?

[tame slate]

Use Lobby Events lots!

[gaunt beacon]

wdym?

[tame slate]

https://docs.unity.com/ugs/en-us/manual/lobby/manual/lobby-events

[gaunt beacon]

does it work with relay?

[tame slate]

Yep! It's designed to.

https://docs.unity.com/ugs/en-us/manual/mps-sdk/manual

This also wraps NGO, Relay and Lobby all in to one easy to use package if you're interested in that

[gaunt beacon]

thanks! ill check this out!

[sly lily]

I was talking about bullet hit detection

[ripe mesa]

send the tick

[sly lily]

and how do i get the tick number?

[ripe mesa]

which is not available in NGO, Mirror

😂

[sly lily]

only photon?

[ripe mesa]

Fusion and Netick is the only lagCompensation raycast I've tried

[lethal beacon]

When I reload the domain, this id starts from 1 and continues to increase one by one every time I stop and restart the game. I need to find a way to reset this before the game stops working.

[sharp axle]

https://docs-multiplayer.unity3d.com/netcode/current/advanced-topics/networktime-ticks/#network-ticks

[sly lily]

also, what about interpolation? how does the server calculate that?

[ripe mesa]

is it local time or server time?

[ripe mesa]

idk in NGO

[sharp axle]

NetworkManager will track both local time and server time. There is also a new partial tick if you're feeling fancy
https://docs.unity3d.com/Packages/com.unity.netcode.gameobjects@2.0/api/Unity.Netcode.NetworkTime.html#Unity_Netcode_NetworkTime_TickWithPartial

[ripe mesa]

partial is like the alpha?

between ticks?

thanks for sharing the information @sharp axle

[sharp axle]

If you need the accuracy, it will give you the exact time between ticks when you call this

[latent imp]

Hello,
I am making a board game with a turn based multiplayer, how do i go about it for changing the turn from one player to another like if there are 4 to 6 players

[sharp axle]

You probably use a network variable for the turn number and then have the server increment it after the player ends turn

[spice breach]

turn number can be list of player so index 0, 1, 2, etc

[gaunt beacon]

how do I use lobby quickjoin

public async void QuickJoin()
{
try
{

      LobbyJoined = await LobbyService.Instance.QuickJoinLobbyAsync();

     
  }
  catch
  {

  }

}

this is what I have so far, I want to start a client in the lobby now

idk if this is even right, my brain hurts\

[tame slate]

If you're using Relay, usually you put the join code in the Lobby's data so that clients can read it from the Lobby data and use it to join the Relay

[sharp axle]

You need to make Quick Join Lobby Options
https://docs.unity.com/ugs/en-us/manual/lobby/manual/quick-join

[gray peak]

Hello, not sure if I should be asking this here or in the Mobile section, but I'm trying to handle disconnect responses and right now players are sent back to the main menu whenever anyone disconnects. This is working on PC fine, if either the client or the host close the game unexpectedly the other is sent back to the main menu and the session terminated. This logic is hooked to OnClientDisconnectCallback if server and to the OnDestroy on the client side (since this object is owned by the server/host).

On mobile however, when I minimize the game and then clear it from the "opened apps tray", it seems like the player isn't actually disconnecting or even running the Destroy/OnApplicationQuit methods, or even disconnecting from the network session. Do I need a different approach to application quitting on mobile?

[fluid walrus]

you should never really count on OnApplicationQuit or scene destroy methods being called except when the player closes the window on a desktop app, most platforms don't have much way for applications to do anything special on quit, they just quit

[gray peak]

Hm, but even the NetworkManager isn't detecting a disconnection... I kinda need to be able to know when this happens so the other player isn't just held hostage

[fluid walrus]

is your example when the host quits and it doesn't lcean up properly on the client? there might just be a different event you need to listen to

usually if the other end disconnecting doesn't immediately remove the client, there should be some kind of timeout depending on the transport you're using

[gray peak]

I'm using relay, and I hadle both client disconnection and host disconnection. If host disconnects -> NetworkObject is destroyed -> Clients React. If Client disconnects -> Host recieves event -> Disconnects other cliesnts (not relevant cause there's only 2 but wtv) -> Handles self disconnection

The issue is that closing the game on the phone, as either entity, does not result in a disconnect

Yhea, so I just tested, if I leave it there it disconnects after a while

I assume there's something somewhere that pings everyone occasionally and that ping fails

but still, it's a significant (tens of seconds) delay

Hm, it's the "disconnect timeout" property in the transport... But still would be nice to be able to know if someone closed the game xD

[olive mason]

I've had a similar issue as I wanted to know if a player is 'asleep' before reaching the disconnect timeout. On the Host I listen to unityTransport.OnTransportEvent and I update a table of activity per client. One issue is that transport uses ulong transportClientId and not clientId , and the mapping is not exposed. It's in the NetworkConnectionManager : "TransportIdToClientIdMap". I had to get it using Reflection, which is a bit of a pain. but it works fine Android.

[pliant bluff]

how do i work around this?

it weird that clientconnectioncallback doesnt provide a way to get the connected client id

[gray peak]

do that via subscription

NetworkManager.Singleton.OnClientConnectedCallback += CreateRandomGenerator;

you can either put the IsServer check before the event subscription itself or inside the Method it calls

[pliant bluff]

i got error Cannot assign to 'OnClientConnectedCallback' because it is a 'method group'

[gray peak]

can you show?

[gray peak]

hm, thats because now you have an object as parameter and the event passes a ulong

[gray peak]

if you need it to be an object instead of a ulong then do

 NetworkManager.Singleton.OnClientConnectedCallback += (x)=> Try(x);

that's strange

either way I see you have 3 refs to where you are subscribing, events should only be subscribed once and then unsubscribed once

probably need to check that

wait

that seems to want to call a method inside the NetworkManager

not the event

stupid question but, is that the NetcodeGO NetworkManager.Singleton?

because this should be what it reads when you place your cursor on top of OnClientConnectedCallback, an event Action

[pliant bluff]

yes

nvm worked

[gray peak]

okay there you go xD

recompiling issue?

or did you have another class called NetworkManager with a singleton?

[pliant bluff]

nah i may accidentally create an empty method via the action tab

to the network manager

[gray peak]

ohh

xD

[pliant bluff]

lol

[gray peak]

that funny because if you ran the game it would've probably worked, because changes made to the NetworkManager script are lost

so it might've compiled correctly

[pliant bluff]

yea thank worked

[pliant bluff]

what is this error?

im using parrelsync to testing

[gray peak]

do you have an issue associated with it or you just don't like the warning?

[pliant bluff]

the client doesnt connect

[gray peak]

check this thread and see if it helps you
https://discussions.unity.com/t/network-config-mismatch-error-while-config-is-the-same/843536

[pliant bluff]

nvm fixed, it seem that i put a networkobject into a prefab and then place it on scene give the error somehow

remove the prefab to turn it into a normal inscene place object fixed it

[gray peak]

Im by no means experienced in NGO, working on my first project with it now, but what I have noticed is that quite often issues arrise with network objects that are fixed by adding and removing the NetworkObject component from the prefabs/scene objects

I don't understand it

I don't like it

but sometimes it's needed and it works

[pliant bluff]

hyah same

[gray peak]

so if you want it as a prefab, remove it from the scene

create the prefab with a new NO

and add it to the scene

don't do it in the scene then save the prefab

[pliant bluff]

ahhh okay okay

[covert zinc]

hello guys !!
I need some help to wait correctly the scene load to complete

NetworkManager.Singleton.SceneManager.OnLoadComplete += SceneManagerOnOnLoadComplete;
NetworkManager.Singleton.SceneManager.LoadScene("Gameplay", LoadSceneMode.Single);

private void SceneManagerOnOnLoadComplete(ulong clientId, string sceneName, LoadSceneMode loadSceneMode)
{
    if (sceneName != "Gameplay") return;
    InitializeClientOnConnection(clientId);
}

I am working on my game flow (so a lot of scene transition) in my GameManager StateMachine. I have not monobehavior attached.
I know this is a bad way to wait for the scene to be ready.

How are you waiting the scene to be ready ?

[pliant bluff]

how to set inscene placed object to be own by the client instead of server?

[sharp axle]

There is nothing wrong with using OnLoadComplete

[sharp axle]

You don't. If it needs to change ownership it should probably be dynamically spawned instead of be in scene

[pliant bluff]

call this in OnNetworkSpawn?

[sharp axle]

that will change ownership each time a new client connects

[gray peak]

That function does serve that purpose but you need to know when you should and how you should do it

is the server the one who knows when X authority should be changed to Y authority?

is the client who is requesting this change from the server?

if you think the right place to do it is OnNetworkSpawn, than you probably should already Spawn it with the correct ownership as evilotaku was suggesting

[pliant bluff]

oohhhh okay

[pliant bluff]

yea thank

[spring pilot]

hey guys, this is more of a general question than an actual technical issue I'm having, but after following codemonkeys lobby tutorial I noticed that the same function used to leave a lobby "LobbyService.Instance.RemovePlayerAsync(playerID)" may also be called to remove any player from the lobby, in my specific use case for the host to kick a player from the game. My concern is that someone with a hacked client would potentially be able to call this function themselves in order to kick any player from the game. I've had no luck finding an answer online to this question. Is this a potential issue? Or is it only possible for the host client to call this function for other players? Many thanks for anyones time or insight.

[sharp axle]

Only the lobby host can kick another player. Regular players can only remove themselves

[spring pilot]

thanks!

[novel stratus]

can someone help me with multiplayer
so im trying to do like a test of doing multiplayer

and when i join from another laptop nothing updates when i move

also as the host, the camera switches to the client that joins

for example: ill have two pcs number 1 is the host client and pc number 2 is the client that joins

pc 1 starts hosting; pc 2 joins; pc 1 camera switches to pc 2's camera pov; pc 1 moves but nothing of the actions are updated on pc 2 and viece versa;

[heavy swan]

What is generally the tick rate I should aim for in a 2 player online game?

[tame slate]

Genre?

[sharp axle]

Depends totally on your game. I believe the default is 50 fps

[heavy swan]

no clue exactly what to call it but it's similar to the "bullet hell" style of games

2d in a limited area though, and a decent bit of precision is needed

[tame slate]

This is the tooltip for Mirror's NetworkManager

[heavy swan]

ah perfect that works for me

[sharp axle]

The NGO docs recommend that that should be the same Fixed Timestep when using physics

[heavy swan]

ah perfect, I'm using 50fps for fixedupdate for now but I've been using time.fixeddeltatime so I might change it in the future if it seems necessary

[mortal oak]

Hey everyone can anyone help me with this error.

[Netcode] Deferred messages were received for a trigger of type OnAddPrefab with key 439981654, but that trigger was not received within within 10 second(s).
UnityEngine.Debug:LogWarning (object)
Unity.Netcode.NetworkLog:LogWarning (string) (at ./Library/PackageCache/com.unity.netcode.gameobjects@1.10.0/Runtime/Logging/NetworkLog.cs:28)
Unity.Netcode.DeferredMessageManager:PurgeTrigger (Unity.Netcode.IDeferredNetworkMessageManager/TriggerType,ulong,Unity.Netcode.DeferredMessageManager/TriggerInfo) (at ./Library/PackageCache/com.unity.netcode.gameobjects@1.10.0/Runtime/Messaging/DeferredMessageManager.cs:97)
Unity.Netcode.DeferredMessageManager:CleanupStaleTriggers () (at ./Library/PackageCache/com.unity.netcode.gameobjects@1.10.0/Runtime/Messaging/DeferredMessageManager.cs:82)
Unity.Netcode.NetworkManager:NetworkUpdate (Unity.Netcode.NetworkUpdateStage) (at ./Library/PackageCache/com.unity.netcode.gameobjects@1.10.0/Runtime/Core/NetworkManager.cs:82)
Unity.Netcode.NetworkUpdateLoop:RunNetworkUpdateStage (Unity.Netcode.NetworkUpdateStage) (at ./Library/PackageCache/com.unity.netcode.gameobjects@1.10.0/Runtime/

Okay I figured it out. The prefab which I am spawning is not in network prefab list. I don't know the reason but network prefab list scriptable object is behaving strangely. The prefabs in it are getting removed automatically. I added prefab to it but now when I checked it is not in there. Now i added it again which fixed the above issue.

Thanks

[void fiber]

is it possible to give a command in discord and run this command in unity? for example, when i type /jump in discord i want my character to jump
and if its possible what can i use for this

[fluid walrus]

you'd need to look into making a discord bot, once you've got that it could publish the commands on a server somewhere that the unity clients can connect to

[void fiber]

does unity already have a system to do this?

[fluid walrus]

no

[void fiber]

thanks 🙂

[warm bone]

public override void OnJoinedLobby()
{
    base.OnJoinedLobby();
    Debug.Log("Connected: Room found");

    GameObject _player = PhotonNetwork.Instantiate(player.name, spawnPoint.position, Quaternion.identity);
}

Im using Photon to create a multiplayer game. I get Can not Instantiate before the client joined/created a room. State: JoinedLobby error, even though i joined a room?

[hallow lark]

you should probably instantiate from the server, not sure if that does it but looks like client code (?)

[warm bone]

I am not sure how to do that and what is the difference.

[hallow lark]

@warm bone ah hm.. have you already completed the tutorial? https://doc.photonengine.com/pun/current/demos-and-tutorials/pun-basics-tutorial/intro

from what I know OnJoinedRoom is the proper callback for when the client enters a room, not OnJoinedLobby

[warm bone]

Oh ok i see the error now thanks

[hallow lark]

do the tutorial, it'll save you time in the long run

[twilit frigate]

Can someone help me understand Netcde for gameobject... i have watched so many tutorial but can't really get my head around it : (

[haughty heart]

Please don't crosspost. If you can't understand it, it's likely out of your current scope and any help anyone can offer would require literally 1:1 mentoring you, which nobody here will do. You need to start smaller and actually build the experience to understand it.

[twilit frigate]

Ik I'm doing same but like there is this "IsServer" var i don't understand, I'm not asking to 1:1 mentor me just I got few quetions...

sorry for misunderstanding : (

[haughty heart]

Then you can post your questions here and if anyone wants to take the time to answer, they can. A general "help me" isn't enough information.

[twilit frigate]

Ok Ok lemme specify my question in detail 🫡

If i'm calling "IsServer" from a client then it's not going to run on that machine which client is using right ?

private void Update()
{
  if(IsServer)
    if (networkPosition.Value != Vector3.zero)
       updateServer();
}

private void updateServer()
{
   transform.position += networkPosition.Value;
}```

In the code above when I press the Arrow keys (which basically changes the networkPosition.Value) the "updaeServer()" will run on the server machine (Host in this case) and will not run on the client machine from my understanding so when it's running in the Host/Server machine I'm modifying the transform.position, which moves the client... How so ? the code runs on the host which says transform.position++ shouldn't the host move ? why client moves

[sharp axle]

If this object has a network transform then it will sync the position to all clients. Your input should be checking if its the local player

[elder kestrel]

the engine I used to use you could essentially open two instances of the game window in the editor press play and run two seperate instances of the project in the editor. This made it extremely easy to test multiplayer code. It seems like in unity you either keep the server/client in the same project and build a client or server when you want to test, or seperate the client/server into two projects with all shared code going in a dll. Is there a better way i am not aware of?

[elder kestrel]

You should really be using Scripting define symbols to check weather its a server or a client

you can make an editor script to update these values

then your code would look like this

private void Update()
{
#if SERVER
    if (networkPosition.Value != Vector3.zero)
       updateServer();
#endif
}


#if SERVER
private void updateServer()
{
   transform.position += networkPosition.Value;
}
#endif

the code wrapped in #if SERVER will only be included in the project if you define SERVER in the player settings, this prevents the client from ever having the built server code on their machine.

Them being able to decompile your code and find the server code will make it very easy for them to find vulnerabilities in any cheat prevent methods you emplace on the server

[tame slate]

ParrelSync, DualPlay, and nowadays Unity is building in a feature called Multiplayer Play Mode for Unity 6

[elder kestrel]

they both take forever to set up a "clone" in large projects with lots of assets. its faster to build if go into the settings and chose the optimize for build time option

[tame slate]

Creating the clone for the first time takes a little bit, using it after that is quite quick in my experience

[elder kestrel]

you dont have to recreate it after each change to the original project?

[tame slate]

No

[elder kestrel]

wait

it exists

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

for unity 6 already

[tame slate]

Mhm

[elder kestrel]

oh shit mppm + dedicated server build target and multiplayer roles is a huge win for unity

[sacred schooner]

afaik it uses symbolic links, so no actual files are copied. It's far from perfect though, and asset values (like the damn network object list) can often de-sync. Had a few occasions where the clone somehow got pushed into my repo despite being in the parent folder where git didnt reach, and messed things up a bit

safe to say watchout what you push after git add . lol

[heavy swan]

I'm trying to make my game work for 50hz online connections, but it seems that "OnValueChanged" isn't working very well since I only end up recieving position information every two-ish frames now (though occasionally it'll still recieve info 2 frames in a row)

Is there something besides OnValueChanged I should use to update the position

This is using a Vector2 NetworkVariable btw

[elder kestrel]

50hz meaning updating network loop 20 times a second?

[heavy swan]

What do you mean?

[elder kestrel]

im asking you to explain what your definition of a 50hz connection is

[heavy swan]

Doesn't 50hz mean 50 times per second (in this case, once every FixedUpdate frame)?

[elder kestrel]

ok you're right, so why are you only receiving updates every two frames?

[heavy swan]

I've got no clue

That's why I was asking here

[hasty rain]

is there a place i can ask people to join my server and be a dev

[elder kestrel]

i dont think you need something other than onvaluechanged and probably should debug to find out whats going on. Is the value indeed being sent etc

[heavy swan]

In #📖┃code-of-conduct they've got a bit of info in the "Collaborating and job posting" section which suggests using the Unity forums

my code essentially boils down to

    {
        if (IsServer) serverSidePosition.Value = transform.position;
        else if (IsClient)
        {
            transform.position = serverSidePosition.Value;
        }
    }```

I've also been trying it using the OnValueChanged but neither one seems to work

[heavy swan]

okay for some reason if I put it in the regular update loop, it updates every 6-7ish frames

which is smoother since the game runs at a very high fps, but my point is that the problem is still around

[sacred schooner]

perhaps there is a threshhold, so that 0.0001 value changes are not evaluated, there is a setting for that in the NetworkTransform component afaik

it has to decide on some value above which to send an update, otherwise traffic would be 90% garbage for bigger scenes where most things are static most of the time

it's there for a reason tho, so you seeing those updates less frequently than literally every update is a good thing

I know you can change some of those thersholds in some of the provided network components, but if you really need it you can look around project settings, or wherever you can (if you can) configure such settings globally

[elder kestrel]

does the problem persist if you build the game?

[heavy swan]

yeah that's how I was testing the online

I think I've got it working now though

[elder kestrel]

what did you do?

[heavy swan]

I'm just using ClientRPCs instead of the NetworkVariable

[elder kestrel]

i mean yeah thats deff an option

but finding out why its happening may be beneficial in the long run

wait

[heavy swan]

Haven't done much testing though, maybe I'm just going mad

[elder kestrel]

idk tbh

this is why I always roll my own networking library

makes it a lot more apparent when its user error or bug

[heavy swan]

What do you mean by "roll my own networking library"

[elder kestrel]

i write my own code to handle the networking isntead of using a built in solution

using raw sockets

[heavy swan]

ah so not using netcode for gameobjects or anything?

does sound pretty nice after hours on end of dealing with unity's stubborness

[elder kestrel]

what kind of game you making?

[heavy swan]

1v1 pvp "bullet hell" style game

I had it running at 10hz before while first implementing multiplayer which is why I never had this problem

[elder kestrel]

show me where you're setting this hz setting lol

[heavy swan]

it's not an actual setting

I just had it set up so that the host would send info to the client every 5 frames

meaning that at 50fps (the fps of FixedUpdate), the client would recieve data 10 times per second

Now I have it so that the client is sent data 50 times per second, at once per frame

[heavy swan]

anyways, using a ClientRpc definitely seems to have been the solution

[noble spindle]

hello ! I made a websocketsharp server for my fps, and i don't know why but after a while, even if the server keeps receiving messages, the server goes to sleep, nothing is displayed in the console and the server doesn't send any more messages, what's really strange is that the serveur don't shut down because I don't have any error inside unity telling me that "The current state of the connection is not Open." and also the serveur shut down only after I press any key on my keybord:

internal class Program
{

    static void Main(string[] args)
    {
        WebSocketServer wsnds = new WebSocketServer("ws://127.0.0.1:8000");

        wsnds.AddWebSocketService<Lobby>("/Lobby");

        wsnds.Start();
        Console.WriteLine("WS serveur started on ws://127.0.0.1:8000/Lobby");

        Console.ReadKey();
        wsnds.Stop();
    }
}

do you know what's appening and also how can I solve this issue ?

[elder kestrel]

Hey are you aware if I can set different scripting define symbols for different editor instances? I have a build scenario setup where it launches another tab but no matter w hat i do its keeping t he scripting define symbols that were set in playersettings

[tame slate]

I know ParrelSync has some way of checking your clone number through script, that's about all I know

[elder kestrel]

im not using parrel sync but i found a way around it!

[fluid meteor]

(I'm assuming that Photon also applies to Networking). I'm a new dev (Meaning I don't know how to code lmao), but I'm following a tutorial on creating Multiplayer using Pun. And anything related to Photon.Pun or PhotonNetwork isn't working. Is Pun not supported anymore? Or is it just a me problem.

[sharp axle]

Its been deprecated but as far as know it should still work. Photon Fusion 2 is probably what you should be using

[fluid meteor]

Ah alright, thanks!

[soft herald]

Hello, I get an error like this when printing netcode variable data in netcode, and it gives the error constantly, not just once. The object is a network object, I spawn it later, the permissions are only open to the server and I change it only on the server. What is the reason?

Thats my variables

Btw thats not giving error

But when i try change it like that it always give error

[soft herald]

I guess I can't change the strings a second time, except for this part.
Because it gives an error when setting it, the second time the error applications start.

[soft herald]

It fixed when i did permission to owner 🤯

Does it make sense ?

[twilit frigate]

Gotcha thank you so much 🫡

[weary stag]

I dont even know what to share to help people help me with this issue?
Playing the game from the editor as either host or client just doesn't work with built versions? It removes a bunch of objects (all the ones with network objects) and disconnects the client instantly.
Playing the game with two built versions works fine though

I don't even know what I've changed to cause this

[sharp axle]

Playing the game from the editor as either host or client just doesn't work with built versions

[finite remnant]

Hi, I am having a very interesting problem while sending ws between two computers in the same network using the input of a pen x,y and pressure the two programs lag a lot (using new InputSystem). But if its with a mouse that doesnt happen. And more over if its in the same computer sending the websockets to the apps it goes ok. Anyone has any idea what can be happening?

[elder kestrel]

what features do you all think the current big networking solutions for unity are lacking?

[elder kestrel]

show your websocket code

[covert zinc]

Hello guys !
I have worked on a state machine, but it's not a networkbehavior or a monobehavior,

So i wanted to serialize the current state, and handle the transition each time the state change,

But my state type is an inferface, IState, how do i serialize that ?
maybe serialize the name of the state, then in a switch method find the state based on the name

but it's smells right ?

What are my options, convert my state machine to inherit from a network behavior ?

Or change my interface to a abstract class ?

[austere yacht]

you would make a key/signal based state machine where each state and each signal has a unique integer ID

for example:

// declare the machine
enum State { Foo, Bar }
enum Trigger { Continue }
IState fooStateImpl = new FooState();
IState barStateImpl = new BarState();
FSM.Configure(State.Foo)
  .Permit(Trigger.Continue, State.Bar)
  .OnEnter(fooStateImpl.OnEnter)
  .OnExit(fooStateImpl.OnExit)
;
FSM.Configure(State.Bar)
  .Permit(Trigger.Continue, State.Foo)
  .OnEnter(barStateImpl.OnEnter)
  .OnExit(barStateImpl.OnExit)
;

// to trigger a transition:
FSM.Signal(Tigger.Continue);

[covert zinc]

Ohh yeah i see ! 😮

[covert zinc]

Thank you

[uncut wren]

I need to stop players shooting themselves in a server authoritative game - so the server handles the shooting stuff. Players are able to look downwards and shoot at their own hitboxes

has anyone dealt w this kind of thing before?

[sharp axle]

You would either use a collision layer mask, or you could do a IsOwner check

[uncut wren]

i think ive figured it out, im checking for hitboxes (which are network behaviours) and then ignoring any colliders hit with a hitbox owned by the owner of the weapon

ye olde RaycastAll

[dark vortex]

When I print debug.log(transform.position) from my player object and then put an empty at that position, it does not match the position of the player object. This is only happening to my client player objects. I'm having trouble figuring out why this is... Any ideas?

[median gale]

Hello!
Goal: I'm working on a multiplayer project using Photon Fusion 2 in SHARED mode with Unity 2021.3.34f1. I am trying to spawn 2 players and have each user move their own player. I am currently testing using 2 PC player but eventually want to move to 1 PC and 1 VR player.
Problem: The issue I am having is when I spawn 2 players. Player 2 cannot move the player, however player 1 can move both players.

What I've tried and observed:
-I have a GameController script that spawns the player. I originally did not have the else statement. However, the second player would not spawn so I added the else statement. This allowed the second player to spawn. I feel like this is my first mistake adding that else statement.
-I did notice that Player 2's state authority is still player1. So I'm 99% sure that's the problem but I can't figure out how to get to have state authority be player 2. See Player2prefab.png (this is during player mode)
-I've also tried changing CharacterController component to NetworkCharacterController component but same result (which makes sense, because that has nothing to do with authority). See PlayerPrefabComponents.png
-I have a GameController script in my Game Scene that spawns the players. See GameController.png.
-In my Lobby Scene, I have a FusionLobby script that sets GameMode to Sharedmode. See FusionLobby.png
-The way I move my player is in PlayerMovement script. See PlayerMovement.png
If anyone has any ideas, let me know. Thank you!

[golden shard]

i have a maze that gets generated but it wont generate for all players the same

[sharp axle]

Your randomness needs to be generated by the server. You can sync that random seed to the clients if you need to

[golden shard]

okay but i dont know how i can sync it with the server i followed the tutoriel from bananadev using Photon.Pun;

[sharp axle]

I don't use Photon, but you would use Network Variables or RPCs to sync values to the clients

[golden shard]

okay i try it

[finite remnant]

public void SendMessageWs(TouchData message, string command)
        {
            string messageJson = JsonUtility.ToJson(message);

            JsonMessage jsonMessage = new JsonMessage
            {
                data = messageJson,
                command = command
            };

            string json = JsonUtility.ToJson(jsonMessage);

            if (_ws != null && _ws.IsAlive)
            {
                _ws.Send(json);
                //Debug.Log("Sent message: " + json);
            }
        }

[pliant bluff]

how to serialize random.state to turn it into a networkvariable?

i guess turning it into json string

[sharp axle]

You could do that. But its way easier to just sync the seed value

[pliant bluff]

what if the random is desync?>

reset the seed to a new one??

[sharp axle]

As long as Random is called on all clients it cant desync. But randomness should really only be handled by the server and the results sent to the clients

[pliant bluff]

im using a client-base Randomnumber,

client will retrive random number localy then call server and to let it generate the random number so when the client is call but if the server call package is lost then it will desync

[sharp axle]

in NGO, RPCs are sent reliably so that won't be dropped.

[pliant bluff]

oooo i ll keep that in mind

[molten hazel]

Hello, is it default behaviour for my clients to not receive Network Manager Scene Events when the host calls NetworkManager.SceneManager.LoadScene()?

they only receive messages after the host has already loaded into the scene?? (which seems odd considering its meant to be synchronous)

[molten hazel]

to clarify, they only receive the events after the host has set allowSceneActivation = true (meaning the scene loads)

[sharp axle]

That should be true by default.

[unique moss]

Does anyone have any good resources to help me get the hang of netcode for gameobjects?

I want to use steam for matchmaking and etc but I don't understand how using steam as the transporter actually works... I just end up with a weird situation where I have to handle 2 connections and can't wrap my head around what I'm meant to be using to do what?

EG: I start a steam host. I start a unity host... Then what? I don't understand how I'm meant to manage the connection if you get what I meant?

[sharp axle]

If you are using Steamworks.net then you can use the transport here
https://github.com/Unity-Technologies/multiplayer-community-contributions/tree/main/Transports/com.community.netcode.transport.steamnetworkingsockets

[unique moss]

Thanks, but that's what I am currently using... I'm just really struggling to understand how to use it properly

I've watched a lot of videos on it but they mostly seem incomplete, out of date or just wrong?

As soon as I get my 2nd account to connect, I get these

It confuses me because on both games I can clearly see the 2 players spawned, I connect to them through steam but I am getting that warning that client 0 isn't in a connected state? Which is what.. Me the host?

Oh okay... so when I disable the movement script on !IsOwner instead of destroying the script, it doesn't all break... Why is that?

[sharp axle]

Destroying the component will mess up everything. RPCs are tied to component index so they have to be identical on all clients

[unique moss]

I see, makes sense. Well it seems the networking stuff is actually working after all.

I guess now that I can join lobbies via steam, I just have to do all the networking using the Netcode for gameobjects way

Okay I think I have the hang of it now. Thanks

[molten hazel]

It is set to false initially while the other clients load the scene, except obviously the clients never load the scene because they are waiting for it to be set to true…

[molten hazel]

which makes me think this method simply doesn’t work

Would you know another way of holding back the host from loading into the scene?

[sharp axle]

Do you mean the player objects loading into the scene? It sounds like you need to listen for Scene Events to wait until all the clients have loaded the scene.

[molten hazel]

thats the thing: im trying to use scene events on the client but they are not receiving any OnSceneEvent until the scene has already been loaded into by the host

[molten hazel]

as said here

[molten hazel]

and by then they are no longer in sync

unless youre referencing other scene events...

[sharp axle]

I guess it depends on when you are subscribing to it but LoadEventCompleted gets fired when all client have loaded

[molten hazel]

I subscribe to it as soon as the client connects. I'm loading up the project now so I'll be able to provide more detail

[molten hazel]

I subscribe to the OnClientStarted event, then call NetworkManager.SceneManager.OnSceneEvent += SceneManager_SceneEvent when the client spawns

[molten hazel]

am i wrong in thinking OnSceneEvent is called for every single event from the network scene manager?

[molten hazel]

with that i have a debug.log inside of the this

so any event called should show a sign

[sharp axle]

every scene load and unload should call a scene event

[molten hazel]

right..

and i use NetworkManager.SceneManager.LoadScene() to load a scene

[molten hazel]

so is it just a bug the client doesnt recieve it till after

[sharp axle]

make sure that's only being called on the host. and that ActiveSceneSynchronizationEnabled is true

[molten hazel]

def only being called by host

[molten hazel]

is ActiveSceneSynchronizationEnabled = true by default?

cuz i haven't set it to false at any point

[molten hazel]

but if not, i havent set it true at any point either

[sly lily]

Hey, i have a problem, i have a game with 2 players with lobby and relay and it works normally, but when one of the players quits to menu, i disconnect the connection with Network.shutdown(), but when the players connect again and go to the gamescene, i get this error

and the client player doesnt spawn

[wicked tundra]

Does anyone know how to join games via P2P by using a generated code rather than IP address?

[wide girder]

You'll need to explain what you mean by generated code and, more importantly, why you think it let's you avoid using an IP address?

[sharp axle]

I'm assuming you mean something like the Relay Service

[noble sapphire]

If im not wrong im pretty sure the Code that are in games are like a encrypted version of a persons IP, and the game inside contains a key for it to decipher
and it contains the port also

[wicked tundra]

So for my current P2P i have to connect via IP address but for games like among us they connect via a code to join a host lobby so i was wondering if theres a way to "disguise the IP with a generated code"

[wide girder]

Ah, so you don't mean "programming code".

You should be clear about that.

[wicked tundra]

Ye

[sharp axle]

that is not how those work at all. almost no games use direct P2P anymore

[wicked tundra]

Like game code but still sounds progammy so dont know the right term

Oh really?

even like small games

[wide girder]

Probably a relay or matchmaking service/server.

[sharp axle]

https://docs.unity.com/ugs/en-us/manual/relay/manual/join-codes

[noble sapphire]

Well i did say that wrong, i probably should have said session IP

my bad

[wicked tundra]

This looks like exactly what i need

[tough loom]

hey guys, im using unity relay for multiplayer but somthing weird is happening, it used to work perfectly but now the player spawns for the host, but on the clients side nothing happens. im not sure when this error started happening but recently i went from unity version 2022 to 2023 so does that have to do with it ?

and if not do you guys have any solutions ?

[sharp axle]

You are seeing the player objects for the other clients on the host? You'll need to check for errors on the client side.

[tough loom]

yes im seeing the player join on the host mobile, but on the client mobile nothing happens

[tough loom]

public async void JoinRelay(string joinCode)
{
try
{
Debug.Log("Joining Relay with " + joinCode);
JoinAllocation joinAllocation = await RelayService.Instance.JoinAllocationAsync(joinCode);

     RelayServerData relayServerData = new RelayServerData(joinAllocation, "dtls");

     NetworkManager.Singleton.GetComponent<UnityTransport>().SetRelayServerData(relayServerData);

     NetworkManager.Singleton.StartClient();

 }
 catch (RelayServiceException e)
 {
     Debug.Log(e);
 }

 //StartMenu.SetActive(false);

}
this is the code and it doesnt give any errors

it just says Joining Relay with XXXXXX

[sharp axle]

Any errors would be happening sometime after Start client. If the players are spawning on the host then there is no issue with the connection.

[tough loom]

but there are no other errors as well, its just blank

the player spawns at the host

but on the client nothing happens

[tough loom]

oh i got this warning now

do you know what it is ?

[sharp axle]

That's the message telling the client to spawn. If it's delayed too long that warning will happen. It's likely that your scene is taking too long to load

[tough loom]

soooo what can i do to fix it

[rare ivy]

Hey guys, I'm trying to make a 2D multi-player side scroller but I'm having camera issues. I've tried making it into a child of the player but due to the player's rotation flipping when they go left, the camera flips as well. Is there anyway to fix that or another method I could follow?

[faint cedar]

You could use a script to set the transform position of the camera object to be the same as the player

[sharp axle]

Make your scene smaller. Make multiple scenes and load them additively. Use coroutines/Tasks so it doesn't freeze the program

[sharp axle]

Your camera probably shouldn't be part of the player prefab anyways. I would use a follow script or Cinemachine to follow the local player

[quasi obsidian]

Hey so ive had this bug for over a month and i cant fix it. I think I had it in the past but I cant remember how I fixed it. So my player uses
-Network Rigidbody
-Client Network Animator (Only thing working properly)
-Network Object
-Client Network Transform
The player is Client authourative and it is completely broken. It stays in the same spot that it spawns in and doesnt fall, which makes me think the Net Rigidbody is broken.
Its rotation and position also updates with huge gaps which makes me think the transform is messed up in some way. The Net Object might also have issues. It was working fine on my old player and all the settings are EXACTLY the same. I completely redid the prefab with a new model and ragdoll and it just doesnt work anymore. I also verified that it isn't just the separated body that isn't catching up but the whole Object itself. Any reason why this might happen??
(For reference I am using NFGO with steamworks)

[pearl girder]

any guides for connecting to UGS from a Netcode dedicated server?

[unique moss]

Figuring out networking is a pain... I'm not sure what is synced and what isn't, so far it seems that practically nothing is synced and I feel I'm definetely going the wrong route to try and sync things...

I was thinking of having a PlayerConnectionHandler which would have this clas

    public class Player
    {
        public string name;
        
        public ulong clientID;
        public int playerId;
        public ulong steamID;

        public GameObject character;
    }
    ```
And then I'd store it in a dictionary
```csharp
public static Dictionary<ulong, Player> players = new();```
Can just use the client ID to get all the players information then but I have no idea how to sync this dictionary

So to populate that I have the event

    private void OnClientConnected(ulong clientID)
    {
        Debug.Log($"Unity: New client connected with ID {clientID}");
        if (IsHost)
            playerConnections.AddPlayer(clientID);
    }```
Which calls this function
```csharp
    public void AddPlayer(ulong clientId)
    {
        Player newPlayer = new Player();

        newPlayer.clientID = clientId;
        newPlayer.playerId = AssignPlayerNumber(clientId);
        
        GameObject playerInstance = Instantiate(playerPrefab);
        playerInstance.GetComponent<NetworkObject>().SpawnAsPlayerObject(clientId);
        
        players.Add(clientId, newPlayer);
    }```
And a script on the player
```csharp
public override void OnNetworkSpawn()
    {
        Debug.Log("On network Spawn", this);
        if (!IsOwner) return;
        PlayerConnectionHandler.FinalizePlayerSetupServerRpc(NetworkManager.Singleton.LocalClientId, SteamClient.SteamId, SteamClient.Name);
    }```
which goes back to my connection handler
```csharp
    [Rpc(SendTo.Server)]
    public static void FinalizePlayerSetupServerRpc(ulong clientID, ulong SteamID, string name)
    {
        players[clientID].steamID = SteamID;
    }```
And that's where I am at....

This all seems like way too overcomplicated for what I want to do

At this point, none of it is even synced with the players, not even sure how to go about doing that

[dapper eagle]

My new game "Tips: Word Game" is on Google Play Store. If you want to support me, you can download and try it. Waiting your feedbacks, thank you 🙂 https://play.google.com/store/apps/details?id=cam.whitelotus.TipsWordGame

[sharp axle]

You can use this if you are using Unity Server Hosting
https://docs.unity.com/ugs/en-us/packages/com.unity.services.authentication/3.3/api/Unity.Services.Authentication.Server.IServerAuthenticationService#Unity_Services_Authentication_Server_IServerAuthenticationService_SignInFromServerAsync

[pearl girder]

hmm, damn, we've got a hybrid of self hosted and amazon fargate hosted game servers

probably just roll a basic api interface for now and make the rest calls myself

[sharp axle]

I would save the steam id and player id as Network Variables on the player object. Then you can loop through all the players and add them to the dictionary if you want

[sharp axle]

Scroll down and there is a sign in with service account that you can use in that case

[unique moss]

Right, I think I've definitely gone the long way of doing it.

I'm not sure what I'm meant to be looping though? So I have a script on my players with the network variable for their steam ID and Player ID but I don't understand what you mean about looping through all the players?

Wouldn't I just have it on the "OnNetworkSpawn" to call a server RPC with the details and then the server update the dictionary? But how do I give all the players it? Can I just pass it with [Rpc(SendTo.NotMe)] when it's done?

[sharp axle]

OnNetworkSpawn is called on all clients so no need for RPCs at all really.
But you get all the player objects by going through NetworkManager.Singleton.ConnectedClients[clientId].PlayerObject;

You can use SendTo.Everyone if you still want to use RPCs

[unique moss]

The problem that I've had before is that I went the OnNetworkSpawn route which would then call all clients to update the textMeshPro.text and then when people joined after, they didn't have any of the names of people from before they joined

So I'm worried if I rely on locally updating the dictionary, that people who join late will be missing the players before them? like the text does

[unique moss]

Also yeh RPC is called for all clients but only the user who joins has access to SteamClient because it's local

[sharp axle]

You would send the player id and steam id in the RPC.
And I would have the player loop that Connected clients dictionary to get already connected players and grab their player id and stream id network variables

ConnectedClients[] might be server only though. In that case I would use FindObjectsByType()

[unique moss]

Do I always have to micro manage sending all the information back out when people join mid game? It's a hassle...

So what it seems I have to do is

1. New Player Joins and sends their information to the server
2. Server sends the new information to everyone
3. Server sends all the player information to the new player

[unique moss]

Yeh it is server only, but generally I've found it's probably easier to just rely on the server to handle catching people up and etc

I honestly thought unity would automate this, I thought the whole idea was that people join and then Unity makes sure that the new client matches the state of the game as they joined, I didn't realize I had to handle syncing everything up myself, I'm not quite sure what is kept synced and what isn't? Is there a rule of thumb with that?

[sharp axle]

Only Network Variables, Network Transforms, Network Animations, and Network Rigidbody are synced automatically

You can make a NetworkVariable<Dictionary> but it's currently buggedr

[unique moss]

So scripts that need to sync, I would be best off having an "Awake" in it which sends a request to the server to be updated and have the server send the information of the object back?

[unique moss]

Bugged how?

[sharp axle]

OnChangedValue is not getting sent when they are updated

A fix is in develop but not yet released

[unique moss]

Lets do an example with NetworkVariables because I haven't used them yet.. If I have enemies spawn and the player jumps in late, if I set the HP text in Awake would that be correct when the player joins?

Basically is the NetworkVariable updated before or after Awake?

[rich basalt]

fishnet forum question I hope somebody can help me: https://discussions.unity.com/t/fishnet-stuttery-jittery-movement-extreme-latency/1507683

[tame slate]

I’d say you’re better off scrolling the background than actually moving the players down the entire time.

[tame slate]

But if you’re experiencing too much jittering under ideal networking conditions, you probably have to play with the interpolation settings.

[rich basalt]

Yeah I undestand that but latency is allready way to much

and interpolating would just higher it even more

[tame slate]

You’re never going to beat the delay of latency unless you have some sort of prediction in place.

That’s why I recommended moving the background instead of the players, it’ll hide the latency much better.

[rich basalt]

so its normal what I am getting here?

[tame slate]

The delay between the local and remote clients, yeah.

The jittering, not so much. Not sure how FishNet’s interpolation works but adjusting it should help to make the movement jitter-free.

[rich basalt]

Hm ok but lets be honest even if I move the background the situation wont be much better. Isnt there any solution to this? arent there any host/client games that need to have low latency because my kind of has to not in a competetive way but atleast a bit

[tame slate]

Moving the background is how almost every game that is a similar style to yours handles constant/endless movement. You’ll probably notice a slight delay between clients for the background scrolling but I’d say that’s a lot better than what you’re experiencing now.

It means your players will be right next to each other the whole time without delay or jitter.

[sharp axle]

You can't prevent latency. You can only work around it. That is mainly what a client prediction system is for

[tame slate]

And it’s also important not to fall in to the trap of comparing delay in side by side windows. As long as it isn’t effecting gameplay, latency is normal.

Something like a slight delay in background scrolling will be largely unnoticed by two clients playing on separate machines.

[rich basalt]

Yeah but the problem is that in the end the game shouldnt be endlessly down

And for example idk if you know the game "stick fight: the game" but its a fighting game and with my latency im producing here that would be unplayable and its also client/host.

Sorry guys youre just trying to help

but thats disappointing

[tame slate]

Just means you have to stop the scrolling and handle your players landing on the ground.

[rich basalt]

no they have to go in circle round first fall down and then get up with ventilators and stuff

and flying rounds

[tame slate]

You can scroll the background in any direction needed.

[tame slate]

What you’re wanting to design probably requires a dedicated server as well as some sort of client side prediction system.

[rich basalt]

No its host/client

[tame slate]

I’m aware that it is currently. I’m saying a dedicated server is probably the ideal choice for what you want to make.

[rich basalt]

But then I would have to synch the position to the other player and that would be essentially the same

[rich basalt]

No i meant the game i am talking about is host/client

[rich basalt]

And that would just cost me money wouldnt it?

[tame slate]

The game you’re talking about is peer-to-peer I’m pretty sure. It’s also pretty known for desync and delay issues.

[sharp axle]

You can self host it. or have the players host it. But you can also do client prediction with a client/host setup

[rich basalt]

Ok but again my difference of heights in my video are huge or am I overreacting and its totally normal?

[tame slate]

As I said previously, the delay between positions is quite normal without a client side prediction system.

Designing multiplayer isn’t about “beating” latency, it’s always going to be there. It’s about masking it as best you can with good mechanics and by playing within the limitations of networking.

The only reason it’s noticeable is because you’re only applying a constant downward force and staring at the windows side by side.

If the players were moving around the screen and only looking at their own screen, the delay is going to be a whole lot less noticeable.

[rich basalt]

I hope its ok that i send it here but as you can see this is a p2p game and I believe that the latency is 1/4 of mine

[tame slate]

1/4 is generous. There's maybe a slightly smaller delay than your setup. It just looks better because the movement is smoothed without jitter and there's animation.

If you're really unhappy with the delay, you can try increasing the tick rate of your server. It looks like in FishNet you can change that on TimeManager.

[rich basalt]

Ok thanks for your time I think Iam just trying to do the best out of it with: smoothing out, googeling about this prediction thing slowing the players down and hoping for the best! thanks

[tame slate]

I also think FishNet has client side prediction built in to the solution in one way or another. Probably worth checking out

[stark hazel]

Seemingly simple question, but I cannot find a good answer in the documentation. What is the idiomatic way to estimate server-client latency in Netcode for gameobjects ?

[fluid walrus]

this is usually provided by whatever transport you're using, i think you're looking for GetCurrentRtt?

[tame slate]

https://docs.unity3d.com/Packages/com.unity.netcode.gameobjects@1.7/api/Unity.Netcode.NetworkTransport.GetCurrentRtt.html

[sharp axle]

There is pretty good Ping Tool that was added a few weeks ago

Its in the NGO 2.0 branch. I don't know if it works with 1.x.

[worthy harness]

Hi everyone, I am researching for a top down 2d shooting game(ANDROID) that I am going to start working on, I want to add offline multiplayer in it where users can host/join the match by connecting to the same network with or without internet, I am trying this for the first time but am unable to find any good resources for this I was wondering if anyone here has worked on it before and can guide me through this or provide links to articles or tutorials. All that I found is at least 3,4 years old

[sharp axle]

For Lan multiplayer, you would need to use something similar to Network Discovery here
https://github.com/Unity-Technologies/multiplayer-community-contributions/tree/main/com.community.netcode.extensions/Runtime/NetworkDiscovery

[worthy harness]

Have you used it recently? I read in some forums that UNET API's no longer works with newer versions of unity

BTW thanks for the link I didn't know about this repo it will help a lot

[sharp axle]

That is not using UNET. But it was made with an older version. should still work with the current NGO with minimum changes

[worthy harness]

I will try it thank you so much

[rare ivy]

Hey guys, I'm using Netcode for Gameobjects and everything is working with the exception of the character flipping. To flip I rotate the player but it doesn't show the other player flipping on their screen, it only shows them facing 1 way. ``` private void FixedUpdate()
{
rb.MovePosition(rb.position + movement * moveSpeed * Time.fixedDeltaTime);

    // rotate if we're facing the wrong way
    if (movement.x > 0 && !facingRight)
    {
        flip();
    }
    else if (movement.x < 0 && facingRight)
    {
        flip();
    }

}




private void flip()
{
    facingRight = !facingRight;
    playerSprite.transform.Rotate(0, 180, 0);
}```

[sharp axle]

Flip() needs to be an RPC

[rare ivy]

Thank you, I fixed it!

[unique moss]

Am I blind? I remember networking in the past, the network manager would have latency simulation options but I can't find any

[unique moss]

https://docs-multiplayer.unity3d.com/tools/current/tools-network-simulator/
Why can't I add this component to anything? It doesn't exist and I urgently need it

[fluid walrus]

did you add the multiplayer tools package? it doesn't come with NGO itself

[unique moss]

Yep

[fluid walrus]

do you have any errors in the log?

[unique moss]

None

I can start my game, I can play, I just can't add that

I have issues where some of my network stuff isn't syncing with clients not in my house and it's impossible for me to debug and fix it because I can't get latency locally... I can't get my friends to download my game every 2 minutes to test things and yeh... I have the package but that component just isn't showing up

[tame slate]

Pretty sure it's built in to the Transport now

[unique moss]

Debug simulator?

[tame slate]

Yeah

[unique moss]

Does that even need the package?

I thought that was a seperate thing

[tame slate]

@unique moss

[unique moss]

It lacks a lot of things though like testing disconnects and etc

I'm not using unitys transport anyway... But I'll see if I can use it just for testing, thanks. I still think it's weird that the scripts are not showing up in my add components at all

Even if it was deprecated, it should still be there?

[tame slate]

I don't think it is deprecated

[tame slate]

Don't think it's built to work with other Transports

[unique moss]

Oh wait mine has unity transport 1.4.1 but I don't have the option to update

Nvm I see it

Thanks

Yeh that fixed it

I didn't realize my transport was outdated

[raw storm]

:loudspeaker: Collaborating and Job Posting

We do not accept job or collab posts on Discord.
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[novel stratus]

uhhh can someone help me a bit

[tame slate]

!ask

[raw storm]

:thinking: Asking Questions

:mag: Search the internet for your question!
:book: Use the API Scripting Reference and User Manual and this troubleshooting site for commonly posted issues.
:wrench: Attempt to debug your issue.
:thought_balloon: Find an appropriate channel by reading the name and description in #🔎┃find-a-channel
:grey_question: And don't ask to ask, ask a full question illustrating with screenshots if needed.
-# For more posting guidelines, go to #854851968446365696

[novel stratus]

so with netcode, how do I synchronise rigidbodies and objects between clients?

[tame slate]

NGO has a NetworkRigidbody component that you can pair with NetworkTransform

[novel stratus]

I have paired them... I think

[novel stratus]

ok ughh ive paired them but this happens

[tame slate]

Probably has to do with your code that moves the objects

[novel stratus]

oh ill check it out

prob missed smth

[tame slate]

Feel free to send it in here

[novel stratus]

yup i forgot to make it networkbehaviour

headslapemoji

thank you

oop nothing changed

i thought it resolved for a sec

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using Unity.Netcode;
public class spinObject : NetworkBehaviour
{
public bool hammer = false;
public float rotationSpeed = 100f; // Speed in degrees per second

void Update()
{   
    if (!hammer)
        transform.Rotate(0.0f, rotationSpeed * Time.deltaTime, 0.0f, Space.Self);
    else
        transform.Rotate(0.0f, 0.0f, rotationSpeed * Time.deltaTime, Space.Self);

}

}

[tame slate]

You're moving your objects on all clients with that code

[novel stratus]

oh yeah

shit

[tame slate]

NetworkTransform is designed to move objects from the server and it will automatically sync the position changes to all clients

You just need if (!IsServer) return; at the top of your Update function

[novel stratus]

ok ill just check if it is the local player

yeah

thanks

it stopped rotating

[vagrant glade]

Hi everyone 🙂
Anyone know some resources or tutorials about the Dedicated Server ?

[sharp axle]

You are going to have to be more specific. But you can check the NGO docs here

[shrewd violet]

Hi, question. I want to use the Unity Cloud services Relay, Player Auth, and Lobby. With NGO
And I have "Multiplayer Services" (1.0.0-pre.1 with Unity 6000.0.15f1) installed, I also installed "Relay" and "Lobby" deps, but it throws ambigious reference everywhere
So I gess Multiplayer Services already includes this two deps? which one should I use?

[sharp axle]

Yea. you can remove the relay and lobby packages

[tame slate]

Multiplayer Services wraps all of those packages in to one for ease-of-use.

I've never used it but I would assume you don't need to go out of your way to install Relay or Lobby on your own manually.

[shrewd violet]

ok, thank you

[sharp axle]

I would install the Widgets package as well.

[vagrant glade]

Thanks !

[neat surge]

yo in what channel I could ask for help in general stuff?

[shrewd violet]

Whats that for?

Im not sure if you were talking to me or someone else

[sharp axle]

It makes using sessions stupid easy. It gives you a bunch of UI prefabs to make connecting and managing sessions as breeze.
https://docs.unity.com/ugs/en-us/manual/mps-sdk/manual/build-your-first-session

[shrewd violet]

The only problem I see reading this, it that is uses matchmaker and multiplayer hosting, which afaik does not have free tier

[sharp axle]

You don't have to Server Hosting. And Marchmaking can now matchmake into Relay

[severe ruin]

Not able to get Network Transform in Owner Authority Mode to syncronize from the joining players side (that owns the transform), only the host clients character transform is syncornized.

Whenever i update the joning players "Slerp Position" settings through the inspector it seems to force the Network Transform to send an Update to the host....

Unity 6000.0.15f + Netcode For Gameobjects 2.0.0-pre.4

[severe ruin]

Is this a bug with these versions of netcode/unity? It seems tow work fine with the "AnticipatedNetworkTransform" but plain does not sync (unless fucking with it in the inspector) with a regular one? I cannot figure out why it is not syncing client -> host, only host -> client, it is owner autorative, and the client owns the object, everything else works, just not the networktransform.

[unique moss]

Can anyone help me figure out why this code doesn't work properly?

If there is no latency, like if I join from a local network laptop, the name updates.. But if I add artificial lag, when a player joins, they don't update the names of any players that joined before them? How am I meant to do this?

I really don't understand how I am meant to sync up the players...

[severe ruin]

Ok downgrading to com.unity.netcode.gameobjects@1.9.1 + Client NetworkTransform seems to work for me, there might be something wrong with com.unity.netcode.gameobjects@2.0.0-pre.4 and the NetworkTransform set to owner authority??? I guess thats what i get from using prerelease versions..

[sharp axle]

This should work. Are the network variables not getting set? Lag should not effecting anything there. If this is on the player then DontDestroyOnLoad is not needed.

[sharp axle]

That is strange. I'm using NGO2.0 and client network transform is working fine.

[unique moss]

Oh I think that is left over when I tried to manually spawn objects myself, but it ended up harder

And the value is set, it's in the code in "IsOwner" and the host always stays up to date... Like if 4 people join then it has all 4 names correct

But if a 3rd player joins it doesn't have player 1 or 2's

[sharp axle]

Try using IsLocalPlayer or HasAuthority instead. Ownership might be being set right away if there is lag

[high night]

Hello, what's the current state of networking assets in unity?

I am looking to have this sort of an architecture:

• Client Server
• Fully server authoritative
• Tick based and fixed delta time
• Clients rollback on predicted object(s)

I have been trying out fishnet for quite some time but its predictive features seem to change quite often.
And the latest version doesn't seem to have any examples.

[dry maple]

Hi,

Netick (our free networking solution) is exactly designed to satisfy those requirements.

The prediction API is close to writing a single-player game. There is actually not much "API", it's designed to be as transparent and simple as possible, yet very powerful.

Regarding examples, we have a free full Rocket-League clone coming soon, in addition to other existing samples.

[high night]

Thanks, I am looking into it.

[analog tide]

Hello, i'm trying to make a system where :
When you lunch the game you spawn in a lobby where you can move (this is done)
When you join an other lobby you spawn at a specific coord and the player who joinded he can see the other players (here is my problem)

I can't manage to spawn the players for the one who is joining and i have this message
NetworkPrefab could not be found. Is the prefab registered with NetworkManager?

if (NetworkManager.Singleton.IsServer)
  {
    foreach (var client in NetworkManager.Singleton.ConnectedClientsList)
    {
        if (client.ClientId == NetworkManager.Singleton.LocalClientId) continue;
        player = Instantiate(playerPrefab);
        player.GetComponent<NetworkObject>().SpawnWithOwnership(client.ClientId);
    }
 }``` here is the code where i try to spawn the player

[tame slate]

Not to be a broken record.. but is the prefab registered with NetworkManager?

[sharp axle]

Yea. sounds like that prefab is not in the Network Prefab list

[analog tide]

well it was saved but got deleted i'm trying by re binding it

well it worked that was quite fast

thank's guys

[pliant bluff]

why this not working

[sharp axle]

Is what not working? Is it not connecting or the debug simulator not working?

[shrewd violet]

Hi.
Im trying to hide a player object (from ALL people on the session including himself).
so, im doing this:

public class PlayerHiding : NetworkBehaviour
{
    public override void OnNetworkSpawn()
    {
        if (IsOwner)
            gameObject.SetActive(false);
    }
}

But this gives a problem the second time, not the first time, I start the network manager. It starts spamming this error every frame:
MissingReferenceException: The object of type 'Unity.Netcode.NetworkObject' has been destroyed but you are still trying to access it.

When I remove this line, everything works perfectly. how can I achieve this?

NGO: 2.0.0 Pre.4
Unity: 6000.0.15f1
just in case

[waxen quest]

Is there a way to buffer RPC in Netcode?

[dry maple]

what do you mean buffer RPC?

[waxen quest]

Like Photon Unity Networking, buffering RPC so that the RPC will gets called for newly joined player if they were not in session when RPC originally called out.

[dry maple]

No, that is a very bad idea.

That's what networked variables are there for.

[waxen quest]

I think Netcode in built does not support it yet

[waxen quest]

In my usecase network variable cannot help me with that.

Buffered RPC are actually very useful

[ripe mesa]

whats your use case

[dry maple]

Why not?

[ripe mesa]

I once tied with buffered RPC, but they are actually bad

[waxen quest]

The Timer starts for other player via RPC. And when new player join the timer does not start for it because that player was not there when RPC triggered

I know a workaround for it but wanted to know if RPC buffering can be done

[waxen quest]

I can do that without network variable tho

[waxen quest]

Ohh

[dry maple]

Use the change event of the networked variable for this.

[ripe mesa]

the buffered RPC was the workaround. The solution is using timestamp

[waxen quest]

Ohh never tried events

[dry maple]

Buffered RPCs in my opinion is one of the worst ideas in game networking.

[waxen quest]

I'll checkout timestamp, never knew it existed

[ripe mesa]

no, the concept is

[waxen quest]

I switched from PUN to Unity and I was very much dependent on buffered RPC :- (

[waxen quest]

Ohh

[dry maple]

You are learning bad practices.

This is not something Photon even recommends anymore in their newer solutions.

[waxen quest]

Dang, ima not use that now

[tame slate]

There are a handful of other ways to implement timers with NGO. A buffered RPC is probably the last way I'd try to implement that.

[waxen quest]

No, the timer runs on Server time not on RPC. RPC only used to send the trigger that timer started and the duration

[tame slate]

Even less reason to want to use a buffered RPC.

[pliant bluff]

nvm i use network simulator instead

[stray moth]

Anyone here messed with client side prediction alot,I have a few questions regarding principles you should follow when doing client side prediction

[ornate zinc]

I am currently trying to figure out, how to share webcamtextures from different users across the network. Is there any reasonable solution available or should I just fetch the webcamtextures data and send it over websocket or similar?

[dry maple]

What questions do you have?

I use it in every one of my games. If you are using the right library, it's trivial to set up.

[stray moth]

I am currently using fishnet but cannot for the life of me get the jitter in the physics to stop

because with it i need to do the replicate OnTick and reconcile OnPostTick but when i use the time manager instead of unity physics alot of bizzare stuff happens

[dry maple]

I am not familiar with using FishNet.

However, I have seen multiple people having jitter issues with it. Are you sure the issue is in your code and not the library itself? What does the jitter look like?

If all you are doing is a basic physics controller, there shouldn't be any noticeable jitter, in a proper CSP system.

Unless there are mispredictions bugs etc.

[stray moth]

I am using a physics controller called sci fi ship controller and i dont know if the real issue lies there since its physics is just being done on fixed update

[dry maple]

Interesting.

That's usually the problem with CSP bugs when people use non-CSP-ready controllers.

Anything that effects the movement logic must be networked. All timers, etc. Anything that is not properly networked will cause mispredictions that lead to jitter.

[stray moth]

You think it will be a problem if i transfer over the fixed update code over to the replicate method that it might fix the issue?

[stray moth]

Any advice you can give will be helpful

[dry maple]

Though looking at it, it looks like the movement is not very complex, so I assume fixing this should be simple, if it's a misprediction bug in that asset, and not the networking library.

[stray moth]

I wonder if it could be a bit of both

[dry maple]

Not really familiar with that networking library. So I can can only give general advise or an insight on what I personally use.

What we do in Netick is simply define an input, and a bunch of network variables vital to the movement. Then simulate the vehicle/player inside NetworkFixedUpdate.

That's all there is to a full working CSP movement.

[grim carbon]

Socket IO implementation in unity

[stray moth]

Yea i am subscribing to the OnTick for the replicate code

So its the same as fixed update

[dry maple]

You could ask the author of that asset to help you find what the issue might be.

Ask them what variables change over time, that affect the movement of the vehicle?

Then you simply network those variables.

[stray moth]

Thx will do