archived-networking

[summer anchor]

he is using uNet

and the video is 7 years old 😂

string _netID = GetComponent<NetworkIdentity>().netId.ToString();

is that correct?

[fossil heron]

Can someone help me with unity playfab guilds/clans system? Need help.

[olive vessel]

I would assume so

[gaunt zinc]

is there someone avaliable? I have this issue:

nvm the ClientScene got changed on mirrors documentation

https://mirror-networking.gitbook.io/docs/general/changelog/2021-changelog#version-35.1.0-2021-mar-29

[meager dirge]

Hello, so I have been learning unity for the past 6th months, and I wanted to create a multiplayer open world game. I am at the point where I have made a basic player character and I need to create enemies.

If someone would give me advice, show me how you learned, or show me their code so that I could learn from that that would be much appreciated!

I can share my project files/provide more detail on my project if that helps. I have also done research on how normal single player enemies work and tried that, unfortunately, I couldn't figure it out.

Feel free to DM me or reply to this message! Thanks!

[weak plinth]

A: I am currently learning from tutorials I look for depending on the things I need, and try to absorb the information of how the code works and what it does, for me to reuse that information later, and also a huge help from this server
B: My advice is to stay consistent

C:If you want multiplayer, there are some tutorials on youtube on how to make multiplayer.

D: If you want to make enemies I would recommend you to start by making a basic AI that follows the player

[blazing cloak]

My client rpc method is not working and is only called on th host client. The method has the [ClientRpc] attribute, it has the ClientRpc suffix, it is called within a NetworkBehavior and the NetworkBehavior has a NetworkObject on the same gameobject. Is there anything I am missing?

[flat mango]

Hi All,

I am currently making a game in Unity that utilizes the Google BigQuery SDK (installed via nuget within my Unity project). I was able to get the game to successfully run the API calls and get the appropriate responses for my MacOS build (tested on TestFlight and works great). However, the same API calls don't seem to work when I build my game for WebGL or Windows. Does anyone have any idea why this may be the case? Is there a certain WebGL or Windows build setting I need to enable for this to work?

Thanks in advance!

[weak plinth]

is fishnet the best networking api?

or is it ngo?

[austere yacht]

the best library is the one that closely matches the needs of your project

[weak plinth]

can you give me an example

[austere yacht]

if you need an authoritative server you can't use Photon PUN

if you need a lot of handholding during development pick one with a good community or paid support

if you need the library to be stable and still supported in 5-10 years, pick one that is backed by a large, successful and well funded company that is committed to supporting it

if you want to make an MMO, don't

[summer anchor]

is there a way to open multiple test games inside unity without having to keep building it?

[upper grotto]

There's ParrelSync which makes a copy of the project folder which it keeps synchronised, and runs that in a second unity instance, but I have not tried it in Unity 2021. In some versions you have to turn off directory monitoring.

[pallid hollow]

hello guys,
Im making a multiplayer game and would like to add IP:Port connection, I didn't find anything online. I'm using Netcode V1.0.0

I'm using the default code provided by unity, here is it :

startHostButton.onClick.AddListener(()=>
{

  if(NetworkManager.Singleton.StartHost())
  {
    Debug.unityLogger.Log("Host started...");
  }
  else
  {
    Debug.unityLogger.Log("Host could not be started...");
  };
            
});

startClientButton.onClick.AddListener(()=>
{
  if(NetworkManager.Singleton.StartClient())
  {
    Debug.unityLogger.Log("Client started...");
  }
  else
  {
    Debug.unityLogger.Log("Client could not be started...");
   };
});```

thanks you  !

[summer anchor]

What is the best way to sync audio? my fire pistol runs on the client, which plays the sound locally, but i want other players audio listeners to pick it up so they can hear other people shooting too

[honest marsh]

Hello everyone, I have a strange issue. I'm using Netcode for gameobject and I'm trying to quick join a lobby, if there is any, or alternatively create a new one automatically.

public async void FindLobbyAsync()
{
try
{
QuickJoinLobbyOptions options = new QuickJoinLobbyOptions();
Lobby lobby = await LobbyService.Instance.QuickJoinLobbyAsync(options);
Debug.Log("Lobby found");
}
catch (LobbyServiceException)
{
Debug.Log("Lobby NOT found. Creating a new one.");
await LobbyService.Instance.CreateLobbyAsync("New lobby", 8);
Debug.Log("Lobby created.");
}
}

Now the strange thing is that if there is no lobby, the system throws an unhandled exception (NoOpenLobbies), but enter the catch block anyway.

So, the first question is ... did it catch the exception or not?

[gusty fjord]

Trying to make a door. Works fine overall, but when the door is opened on one client (default is closed) before another client joins, the new client still sees the door closed. Door opens by rotating a transform (NetworkTransform attached with syncing y rotation selected). When the new client joins I print out the networkvariable's value and the door transform's rotation, which are both correct. The transform just isn't actually rotated that way on the new client. Door script: https://pastebin.com/kBPi0BtL, character calls Interact() to open and close the door. What am I doing wrong?

[bright mauve]

I did not use netcode over a year (used fishnet for the time until release)
but usually all transport data are saved under a specific transport object,
you can try this one:
https://docs-multiplayer.unity3d.com/transport/2.0.0/api/Unity.Networking.Transport.NetworkEndPoint/index.html#port

(add using unity.networking.transport) and for local network (same router) use Ipv4 adress and port

[bright mauve]

can you try open the door with the second client (after it's opened for the first one) and report what happens?

[gusty fjord]

Door stays closed on second client, closes on first client. Trying again then opens the door on both clients

[bright mauve]

I'm guessing that unity only debug.logs the error but the rest of the code continues to work.
I did not use this system before but there is probably a way to handle LobbyService.Instance.QuickJoinLobbyAsync(options);.

[bright mauve]

second client opening the door does not affect the first client?

[gusty fjord]

It does. When in unsynced state (door open on 1st client, closed on 2nd client), trying to open the door on the second client closes it on the first client, nothing happens on the second client

Sorry, to be clear, the first client is actually the host, if it matters

[green moat]

hey folks, I'm new and I have troubles with my animations in multiplay. maybe someone can help me?

[pallid hollow]

how do I implement it ?
how do I use endPoint ?

startClientButton.onClick.AddListener(()=>
{
  NetworkEndPoint.TryParse(Ip,port, out NetworkEndPoint endPoint, NetworkFamily.Ipv4);

  if(NetworkManager.Singleton.StartClient())
  {
    Debug.unityLogger.Log("Client started...");
  }
  else
  {
    Debug.unityLogger.Log("Client could not be started...");
  };
});```

[gusty fjord]

Got it working by removing the NetworkTransform from the door - I think the changing the rotation through DoorState and the NetworkTransform were fighting each other.

[summer anchor]

how can i send an audio source, to the server and then to all the players without having to do a whole function for each sound?

[bright mauve]

Try:

NetworkManager.Singleton.GetComponent<UnityTransport>().SetConnectionData(
    "127.0.0.1",  // The IP address is a string
    (ushort)12345 // The port number is an unsigned short
);```

[summer anchor]

such as when my player shoots, i want everyone to hear it, not just him

[bright mauve]

Probably, I'm guessing DoorState is a script you wrote that affects the rotation of the door?

[gusty fjord]

DoorState is a NetworkVariable in the script I linked. Value decides on how the transform should be rotated

[bright mauve]

I would recommend checking the boss room example and see what they did there.

on my own project I would start the vfx locally, so when a different player shoots you can trigger an event that plays the audio,
as when the player shoots everyone who see that he shoots will also have the audio triggered locally.

[bright mauve]

yea, that's probably it :)

[summer anchor]

Cheers mate ill have a look, been stuck on this for ages now haha

[pallid hollow]

it seems to work, It's working if I use the ip 127.0.0.1, but it doesnt work if I put my lan address (192.168.1.45), It might be the windows firewall... I don't have any popup saying that windows blocked this connection

I even tried using my external ip, and setup port forwarding on my router but nothing

[bright mauve]

I might be dumb but just to make sure, you got the address from running an IpConfig and copying the IPV4, right?

[pallid hollow]

yeah this one

[bright mauve]

alright, copy that to the other computer and make sure you are on the exact same port.

a problem that could cause this is from the firewall, I would disable it temporarily just to check as it can be the issue.

[green moat]

hey guys, if you have time maybe you can help me with my issue... I got a simple 2d movement and animation. but my client stuck in the position and cant move, but my host can...

[pallid hollow]

I disabled the firewall from my main machine but still nothing, Imma try with a different computer but I don't think it will work

[bright mauve]

weird.
if this doesn't work I believe you can also change the IP and Port from the network manager through Unity itself,
try disabling the script you wrote that overwrites that and see if it works different if you set it yourself.

[bright mauve]

did you make sure the second client is the owner of it's own player object?

[green moat]

protected override bool OnIsServerAuthoritative()
{
return false;
}

[green moat]

this is from a video and they said if u attach this to ur player prefab, it should work

[bright mauve]

@summer anchor if you need help feel free to ping me here, not in dms :)
and there are no dumb questions, there are dumb answers and I will try my best to not provide them here

you can download the boss room through the guide here:
https://docs-multiplayer.unity3d.com/netcode/current/learn/bossroom/bossroom/index.html

[pallid hollow]

it's working, and I even have a popup from the firewall to ask me if I wanna allow connection

[bright mauve]

Alright,
Than I'm guessing you have a problem with converting inputfields/any input method to string/int.

[summer anchor]

Sorry, i get the error to install git on my system

[bright mauve]

did you make sure to attach textMeshPro components instead of Unity.UI ones?
make sure there are no spaces or empty strings
and try to debug.log the string.count of the adress and port and count the adress digits yourself to make sure everything is correct.

[bright mauve]

try installing git from here: https://git-scm.com/

[green moat]

How do you know if my client is the owner?

[bright mauve]

if (IsOwner)
{
  Debug.Log("I am the Owner" + gameObject.name);
}

[pallid hollow]

If override the value of the ip like this :

NetworkManager.Singleton.GetComponent<UnityTransport>().SetConnectionData(
  (string)"192.168.1.45",  // The IP address is a string
  (ushort)7777 // The port number is an unsigned short
);```
it doesn't work

[bright mauve]

weird, can you check what it says in the network manager?

(in runtime, after changing the value)

[green moat]

yeah I'm the owner

[pallid hollow]

I just have this

"Ip" is the input field but since the value is override it doesn't matter

log level is set to developer

[bright mauve]

this is on the second client, right?
try adding debug.log("Test x"); to the PlayerInputs(); function.
see if the second player enters it or if the first one does as well.
also debug.log the movement values and see where it fails

[bright mauve]

so the new value is empty?

sorry,
@pallid hollow can you try this instead?

NetworkManager.Singleton.GetComponent<UnityTransport>().SetConnectionData(
    "127.0.0.1",  // The IP address is a string
    (ushort)12345, // The port number is an unsigned short
    "0.0.0.0" // The server listen address is a string.
);

This is from the documentation on the NetworkManager:
https://docs-multiplayer.unity3d.com/netcode/current/components/networkmanager/index.html

[green moat]

yes, i build and run the game, and start host and in my editor i started the client.

now I debug.log the x and the y value of my vector and when i press the arrow keys the value changed from 0 to 1 and 0 to -1, but my player stands still and doesnt move... but i see the animation

[bright mauve]

it says the values are 0 here.
does the animation play in the right direction?

[green moat]

yeah because i can't make a screenshot while i'm moving^^ yeah and the animation play in the right direction

on my host everything works fine

just on my client the player animation works, but my player doesn't move

[bright mauve]

can you show me the networkTransform component?

[summer anchor]

Yonatan, do you know where exactly in boss room i should be looking? struggling to find and code that relates to sounds

besides local sounds

[bright mauve]

I never seen something like this before happen naturally,
I am guessing 2 things:

1. you have a script that makes the player get stuck at a set position (probably 0,0,0):
   so the player is indeed moving but you are updating his position to 0,0,0.
   you can check that but going to the second client in editor and than moving the player manually with the move tool.

2. the movement is server authorative, which means the client needs to send the server his data and the server will be the one who updates the client.
   you can check if that is the case through opening the host in the editor and the player on the build.
   than try to move the second player through the host in the editor and see if it updates for the second player and the host.

[bright mauve]

nope, but try looking for scripts related to audio, sound, any weapon that makes noise and try playing the game and notice when a noise is made. (not bg music as that could be played locally.)

[summer anchor]

yeah thats what im hunting for

on the plus side, im now backing my project up on github xD

[pallid hollow]

Im back, this doesn't work with my lan address but does with 127.0.0.1

so nothin as changed

I don't have anything to add in the code when I start as host ?

because I'm supposing that the code you sent me only execute when I start as client

but I might be wrong

[green moat]

1. yeah that's the issue but in my code I don't set the players position to 0,0,0...

2. yes i can move the client and it updates to the host. so u were right, it's the issue 1.

[green moat]

this is my simple movescript...

[bright mauve]

the server address should always be 0.0.0.0.
the second code I sent does that and the client one is the first line of string.

if you are on the same computer than yea 127.0.0.1 should work.
if you are using 2 computers use the lan address and see if that works

[pallid hollow]

it's working dude

I pasted your code on both host and client connection and it's working

working on two different computer too

thanks you so much !!!

[bright mauve]

if you run the client in the editor, and move the client through the editor, does it work?

[bright mauve]

glad I could help!

[green moat]

no... I can't move it... why?^^

[bright mauve]

if you drag the client with the arrow it doesn't work?

[green moat]

no it doesnt...

[bright mauve]

I mean literally with the move tool

not through code

[green moat]

yeah i know^^

[patent fog]

NoOpenLobbies is one of the possible reasons of the LobbyServiceException (https://docs.unity3d.com/Packages/com.unity.services.lobby@1.0/api/Unity.Services.Lobbies.LobbyServiceException.html#properties)
But there's more : https://docs.unity3d.com/Packages/com.unity.services.lobby@1.0/api/Unity.Services.Lobbies.LobbyExceptionReason.html
So yes you will catch when there's no more lobbies, but if you don't further investigate the reason response, you'll even catch ANY lobby error exception. For example someone unauthorized or already connected to a lobby, if able to launch multiple requests, could massively trigger creation of new lobbies.

And indeed your debug logs are printed in the console, so yeah your catch block is executed

[bright mauve]

Well today I learned something new.
In netcode NetworkTransform is automatically Server Authorative Movement.
Aka each client send the server their movement data, the server moves the clients locally and than sends the clients an updated situation to render.

try removing the NetworkTransform component and switch to ClientNetworkTransform.

this should make it client Authorative as the client is the one moving and sending the data to the server and reply to everyone on how to render.

[summer anchor]

Has anyone got an example of how to play audio over the network at a certain players location?

[blazing cloak]

Hi. I get a wierd warning when I try to use a client rpc on unity netcode for game objects. The client rpc method does not work but rpcs in other scripts work fine. The script that is trying to run the rpc is a network behavior with a network object and the method was copied from another script where it works (it just says pong in the console). Anyone know why the rpc in this script does not work?

[green moat]

it worked for me, thank you!

[civic flicker]

hello, i have two players on my game, but when i put animations on them, they are both synced. Is there a way to only have one player move and the other stay still (as in, they have different animations based on player input)?

[bright mauve]

Glad I could help!

[bright mauve]

yea, but it depends on how you sync the animations.
if you are using Netcode and NetworkAnimator than you can simply play different animations (try Animation override https://docs.unity3d.com/Manual/AnimatorOverrideController.html) and Unity should Sync them differently.

[civic flicker]

yea im using netcode

ohhh i see

i'll check it out

thanks!

[bright mauve]

can you send the new function where you use the rpc?

it could be that it is attached to a networkObject that does not spawn correctly or is only instantiated for the server and not a client...

[blazing cloak]

oooh. I think I might be destroying the object on the client. I think I was just being stupid

[bright mauve]

Nice.
don't forget when destroying objects you should Despawn(); them first, so later when sending Rpc's or dealing with the network they won't bug the game 😉

[blazing cloak]

alright. Thanks for the tip

[green moat]

is it possible that a friend from another network join my multiplayergame when i install hamachi and configure unity to the hamachi ip?

[wide girder]

Why would you even need hamachi for that? What kind of networking solution are you using?

[green moat]

I used Netcode for Gameobjects and UnityTransport

but if i give him my build, I need an IP address where he can connect right?

[wide girder]

I'm not entirely familiar with netcode, but if it's anything like photo (which it should be), then you don't need to do any manipulations with IP addresses. The framework should take care of connecting both of you to a name server(or it's alternative in netcode) from which both of you should be able to create/join rooms .

[green moat]

my goal is to create a mmo and a dedicated server, that's why i wanted to test it with hamachi

i dont want to use photon

[olive vessel]

If the server is hosted on your network, you'll need to port forward

[green moat]

ok, so it could possible work with open ports and a hamachi ip right?

[olive vessel]

I have no clue what hamachi is

If you open the port, he can join via your public IP

[wide girder]

Hamachi is for simulating local network. I've no clue why they bring it up here...

[green moat]

ok, are there preferences for the ports that i should use?

[olive vessel]

https://en.wikipedia.org/wiki/List_of_TCP_and_UDP_port_numbers

Generally I go with 7777

[green moat]

ok

[olive vessel]

But there's all the ports

[wide girder]

Unless you have firewalls blocking ports, you shouldn't need to do any manipulations with the ports.

[green moat]

ok then I'll test it

thank you

[weak plinth]

How does matchmaking in games work

Like the player has to press a button

THen the game searches for other players who also pressed it

And then puts them in the same lobby

But how does it work, after the button is pressed

Is it neccesary to create your own matchmaking server or how are matchmaking servers created

[austere yacht]

When the button is clicked the players Info about what type of match they want to play (class, skill rank, ping) is posted to a matchmaking server, the server stores it and waits for other people to post their match requests. every time a new player posts such a request the server searches the existing requests for a close match of parameters (you define what those are). Once enough matching players are found in this way a match dataset is created that all the players in it can retrieve. It contains the info for connecting to the match server

That matchmaking server usually is just a simple web api

you can code your own or use services like playfab with readymade matchmaking that you configure your needs

[weak plinth]

THank You

But, if you want to create your own matchmaking server, is it neccesary to have a server set up and is it hard to program it or is it just easier to use PLayFab

[wide girder]

You need someone(some machine) to handle connecting clients together/to the lobbies. Otherwise how are they gonna match each other? Check every single IP address and port on the web untill they accidentally stumble on the right address?😅 That's basically the job of the server: it provides an access point known to all clients and handles connecting them to the same environment.

As for creating your own server, there's like a full fledged profession for that - backend engineer. So it's definitely not easy.

Thankfully there are complete solutions like netcode, photon, mirror, etc that do it for you.

[weak plinth]

Ah

So OK

So Ishould just use like PLayfab or something like that

[gusty fjord]

Netcode for Gameobject: BossRoom uses a unique identifier to keep track of users reconnecting. That identifier is sent by setting NetworkManager.NetworkConfig.ConnectionData before starting the client. Am I correct saying that this data is then only available through NetworkManager.ConnectionApprovalRequest.Payload in the approval check and not elsewhere? I can not find anything else

[wide girder]

I'm not familiar with playfab, but yeah.

[weak plinth]

But generally, are those solutions (Mirror, PlayFab) like extensions or something. I used RiptideNetorking for my game, and I finshed it, but I still have to do Matchmaking. Or how do they work?

[wide girder]

The provide you with some kind of API for matchmaking. They only cover the back end of it of course.

[weak plinth]

Like for Playfab I found this:

"MatchmakingQueue": { "Name": "MyFirstQueue", "MinMatchSize": 2, "MaxMatchSize": 2, "ServerAllocationEnabled": false, "Rules": [ { "Type": "StringEqualityRule", "Attribute": { "Path": "Build", "Source": "User" }, "AttributeNotSpecifiedBehavior": "MatchAny", "Weight": 1, "Name": "BuildVersionRule" } ] }

But do I have to write inside of my scripts or what?

(Or does it do magic like the unity multiplayer solution)

[wide girder]

It depends on the framework. You'll need to read their docs and how to implement matchmaking in your game. There's no magic in code.

[weak plinth]

OK

[austere yacht]

Generally a networking library like netcode/mirror/photon fusion will do nothing for matchmaking. Playfab and unity game services is a completely different type of thing, it’s a service for scaling your game, they typically include hosting servers, databases and various APIs for implementing features that are not real-time (matchmaking, shops, inventory)

[summer anchor]

Has anyone made a network audio component? sort of like the network animator that sync all the animations, after something like that but for audio

[heady locust]

Hi.
Can we run Photon server on Unity Game Server Hosting?
Dose anyone have such experience?
Or maybe there is other way of running Photon on Unity Game Server Hosting?

[gusty fjord]

unity.com gives me a server error right now, but I'm pretty sure this is an official example project of Photon Fusion + Unity Game Server Hosting: https://unity.com/demos/photon-fusion-battle-royale

[heady locust]

Thanks @gusty fjord
I will check it later.

[heady locust]

Lets say I have created Unity Game Server.
And for example I have 4 rooms each has 3 players. Overall 12 players playing the game at a time.
Does it mean there would be 4 running instances (servers)?
Does it run a new server for each room?

[civic flicker]

hello guys, is it worth it to use relay for a game where the one player is the host and the remaining ones are the clients?

4 players max

[stiff ridge]

It depends.
We run Photon Servers on the Photon Cloud for everyone to use. If you don't need to customize this, you can use it. The Photon Servers run a lot of rooms each (but don't run Unity itself).
You usually don't run Photon Servers on services like Multiplay but you'd run those on baremetal machines.
With Fusion, you could build a Unity instance as Server and run that per session/game-instance on services like Multiplay. To do this effectively, you'd need the matchmaking to orchestrate instances running.

Usually, it's fine to start with Fusion's "Host Mode". Then some client is running a client plus a "Fusion server".

[stiff ridge]

Not necessarily. It may be good for security reasons, as the Host's IP is hidden. So the host less vulnerable for attacks and has good privacy.

[civic flicker]

yea this doesnt seem too bad

since i want the game to be online as well, and not only local

how hard is it to implement a simple system?

[stiff ridge]

It can be online even without a relay. The topic to look up about that would be "NAT Punch Through".

[stiff ridge]

Depends on your knowledge and the tools you use.
Afaik, Steam always uses relay. Fusion and Networking for GOs have it as option.

[civic flicker]

im definitely a noob on this topic

[civic flicker]

so lets say i'd like to have my game on steam one day

if i had relay on my game, the process to have it accepted on steam would be easier?

[stiff ridge]

I don't know about Steam's publishing requirements. I don't think it matters.

[civic flicker]

ah i see

okay then, ill check on the NAT punch through topic

thank you for the info!

[heady locust]

Hey @stiff ridge
Thank you for reply.

We run Photon Servers on the Photon Cloud for everyone to use. If you don't need to customize this, you can use it.
This part is not clear to me.
As I know the Photon Cloud is kind of relay, it handles matchmaking, and data transfers to the users.
Photon Server is something that we can run on our local host and test the games, or we can put it on some hosting (non gaming hosting) and run our game on that custom host.

The Photon Servers run a lot of rooms each (but don't run Unity itself).
You mean each photon server can run several rooms on the same instance of the game? I don't understand the server scaling part.

You usually don't run Photon Servers on services like Multiplay but you'd run those on baremetal machines.
I also know so, that the Photon Server is for creating custom host on users PC.
That is why I can not understand your first sentence.

With Fusion, you could build a Unity instance as Server and run that per session/game-instance on services like Multiplay. To do this effectively, you'd need the matchmaking to orchestrate instances running.
So if I build a Unity Server instance and put it on let say Unity Game service or Multiply, each room will create an instance of the game on the host side?
If so then
1. one server multiple instances?
2. or one server per instance?

I know I miss some important things, that is why I ask those question to put all together.
Thanks.

[weak plinth]

For the unity multiplayer (Unity Relay), what happens if the free tiers are used and you have to start paying

Will unity inform you

Or will it just take money

Is there a way, when it will cost too much, and if it goes over the free tiers, the servers would stop.

[austere yacht]

Yes

[austere yacht]

Yes

[austere yacht]

Typically these services are happy to bankrupt you by way of a careless config mistake that runs 1000 servers at full throttle over night

I recommend checking your daily usage reports diligently

first feature you should implement in all your servers is automated shutdown on a timer

[summer anchor]

Just wondering if im handling everything correctly in my co op fps game.

For shooting i use this
-player casts a raycast, and sends the raycasts hit and the players name who shot it to a command
the command has a deal damage function to the player hit by the raycast. then also sends an rpc with the players name that shot and called the command.
clientrpc checks who the player is, then runs the shoot function only on that player (animations, sounds etc)

Am i running everything correctly? or will i get issues because the player wont actually see he is shooting until the server tells him he is, it seems pretty instant to me just curious if its right or not, thanks

[stiff ridge]

The Photon Server is the basis for the Photon Cloud and the Photon Server SDK. It runs a base logic to distribute games across regions and then games across a number of "Game Servers", which enables us/you to scale for number of rooms running. In rooms, clients can send messages to others, store properties on the server, etc. This is called the Realtime API.
The Photon Cloud runs this logic "as is" in a default configuration. You can get the Photon Server software and run it "as is" if you like. With the SDK you can also modify it.
If needs be, you could write your own game logic with this. It is run "per room". Only one Photon Server instance is needed to run a large number of rooms and it could have some game logic. However, you can't run a Unity instance in those rooms (so no physics, etc). This is best for turn based game or games where the simulation can run without Unity (no physics, etc). Then this is very effective.

Fusion Servers are Unity instances. They should be run per match and it supports physical interactions, using the scene, navigation, etc.
Each Fusion match needs a host or server (unless you use the Shared Mode) and you could run those on any of the Unity hosting services (Photon won't host and run those instances, it just coordinates them and provides deep networking integration via Fusion).
You can run multiple instances on a single physical machine (actually, the more run per machine, the better, as this is more cost effective)...

[heady locust]

Thank you for explaining things so deep. @stiff ridge

[civic flicker]

why is it everytime i make a new build i always have to make the animation discrete again?

it always goes back to disabled after the build

[spring crane]

IIRC there was some ritual to unscrew the serialization on that. Try File -> Save Project?

[civic flicker]

weird

if i instantiate another player prefab it goes back to disabled

maybe i should force it to be discrete through a script

[severe fable]

How can I send a struct with a client connection attempt? Here is an example which I think should work, but doesn't. I have a really simple struct (just 2 strings). I'm then serializing to byte[] and putting into the clients ConnectionData. However the connection just silently fails (the host never gets the connection attempt). If I remove the ConnectionData then the attempt does go through.

[brittle gyro]

Does anyone have a good list of structs example for synchronizing data between server and client in NetcodeForGameobjects? I'm making a player preferences object which includes a list of player icons that persist between scenes.

[fair berry]

Hi, i'm following the docs from unity networking and i now need to test it through the command line (https://docs-multiplayer.unity3d.com/netcode/current/tutorials/helloworld/index.html#creating-a-command-line-helper). I dont understand how i save it as binary (Save As the binary HelloWorld.) since it automatically starts with building after i press select folder

Am i doing something wrong?

[fair berry]

okay nvm im stupid

[brittle gyro]

tbh I use parrelsync for everything. Way easier than this commandline business. Tarodev has some good YouTube video tutorials for Netcode for GameObjects that uses it instead of binaries.

[fair berry]

ohh nice

[severe fable]

You can use the NetworkList to store list of structs and will be automatically synced across network: https://docs-multiplayer.unity3d.com/netcode/current/api/Unity.Netcode.NetworkList-1

You just have to make sure the struct extends INetworkSerializable, IEquatable

Example of a struct which can be put into NetworkList: ```cs
using System;
using Unity.Netcode;

namespace Structs
{

public struct ClientPing : INetworkSerializable, IEquatable<ClientPing>
{
    public ulong clientId;
    public double ping;

    public ClientPing(ulong _clientId, double _ping)
    {
        clientId = _clientId;
        ping = _ping;
    }

    public bool Equals(ClientPing other)
    {
        return clientId == other.clientId;
    }

    public override bool Equals(object obj)
    {
        return obj is ClientPing other && Equals(other);
    }

    public override int GetHashCode()
    {
        return HashCode.Combine(clientId);
    }

    public void NetworkSerialize<T>(BufferSerializer<T> serializer) where T : IReaderWriter
    {
        if (serializer.IsReader)
        {
            var reader = serializer.GetFastBufferReader();
            reader.ReadValueSafe(out clientId);
            reader.ReadValueSafe(out ping);
        }
        else
        {
            var writer = serializer.GetFastBufferWriter();
            writer.WriteValueSafe(clientId);
            writer.WriteValueSafe(ping);
        }
    }
}

}

[brittle gyro]

Thank you. The RPC stuff is really straightforward to me, but synchronizing objects feels like suspicious black magic.

Is there any way to guarantee one OnNetworkSpawn will be triggered before another?

Thinking of just chaining listeners, but would be nice to know if there's a way to guarantee order

Like a priority indicator or something

[remote mulch]

Hey any idea why on my photos server when the game is built I can make and join a server but upon leaving the servers I make or my friend makes doesn't show up until I rebuild the entire game and send it to him again,if you require my code I don't have it rn as I'm on phone but I'm using the photon basics I copied off the net

[weak plinth]

New Unity multiplayer is so cool

[gusty fjord]

Netcode for Gameobjects: I was assuming Instantiating a GameObject on the server, setting variables and then Spawning the NetworkObject would sync the variables I set before spawning to clients. It appears it doesn't, correct? Is the only way for me to do this to use NetworkVariables for this data instead? Is it guaranteed that the NetworkVariables will be synced before OnNetworkSpawn is called on the newly Spawned GameObject's NetworkBehaviours, or do I need to listen to value changes? The data I set is not supposed to change after the server set it up before Spawn.

[pure acorn]

Anyone good with reading player.log files to help me understand a crash

[severe fable]

Only NetworkVariables will be synced automatically. I could be wrong but I don't think you can assume NetworkVariables will be synced at the time of OnNetworkspawn. If you start a host, change the some networkvariable, then join a client. The client might have the initial value at OnNetworkSpawn (not yet have the synced value). So if you want to do something at Start on the client you should run it both as a function in OnNetworkSpawn and then also run it again as a value change listener on the networkvariable.

Example: ```cs
public override void OnNetworkSpawn()
{
DoAThing();
TheNetworkVariable.OnValueChanged += (value, newValue) => DoAThing();
}

[gusty fjord]

Thanks!

[severe fable]

That way you are covered no matter what order the syncing happens in

Does anyone know of a way to listen for the NetworkManager.Singleton.StartClient(); successful connected? Currently I'm listening to OnTransportEvent, but this is pretty poor way to do it. As "connected" event gets triggered even if the Host rejects the connection at approval

[spring crane]

Link to Photon discord is in the pinned message.

[tight basin]

Thanks, I have removed my message.

[stiff ridge]

Have a look at the Matchmaking Checklist:
https://doc.photonengine.com/en-us/pun/current/lobby-and-matchmaking/matchmaking-and-lobby#matchmaking_checklist
You could also enable the SupportLogger and look into the logs of both clients.

[boreal willow]

hello, anyone know how to spawn player after a scene loads? with newest networkmanager for netcode

[subtle gate]

hi i wanna transfer data between two clients in photon

its my ui i just want that when i wrote msg in txt field and send it.its easily shown to all clients

i scrollbar i am using prefebs which are instantiated

[fierce moth]

i made this launcher code for photon pun

it said loaderanime

and i see this

anyone please help

[olive vessel]

I know what you've bloody done

There is a Demo from PUN called Launcher, you have applied that to an object

It does have loaderAnime

But your script is not Launcher, you misspelt it

So you think you added your script, when in actuality you added the demo script which you don't want

[fierce moth]

thanks ive made a multiplayer preview

https://drive.google.com/file/d/15lxU_HT0p7D1jJvqg-13tyOjPVqKgWai/view?usp=sharing

my friend cant play with me we cant connect to the server

he can make a server but i cant join

but in my pc i opened 2 clients and started server in one of them and i can join from other client

[civic flicker]

port forwarding

[frozen summit]

Howdy! ik there's like 20 different solutions for multiplayer.. Idk how to choose.
I am just making a 2d platformer rocket league-like game lol
so i really just need to keep track of the two players..

if anyone has any suggestions for a small game, plz lmk. just trynna make this for me and a friend to play (not locally). no lobbies or anything else complex

[boreal willow]

BUMP

[hearty dock]

just put the code to spawn the player in Start, in a script that's in the newly loaded scene

[boreal willow]

but it spawns him as soon as the host/client is started, and I have to start it when player presses the button

[hearty dock]

?

So have the script spawn the object when the player presses a button instead

what's the difficulty

[boreal willow]

but the scene isnt loaded yet when they press the button

[hearty dock]

you're being very unclear about the setup/what you're trying to do

[boreal willow]

hostBtn.onClick.AddListener(() =>
        {
            SceneManager.LoadScene("Game");
            NetworkManager.Singleton.StartHost();
        });

I have something like this, it's in the menu scene and I need it to load a game scene and start hosting the game, but the problem is that it spawns the player before the scene is finished loading

@hearty dock

[hearty dock]

Yeah LoadScene specifically doesn't happen right away

you need to wait until the next frame

https://docs.unity3d.com/ScriptReference/SceneManagement.SceneManager.LoadScene.html

When using SceneManager.LoadScene, the scene loads in the next frame, that is it does not load immediately. This semi-asynchronous behavior can cause frame stuttering and can be confusing because load does not complete immediately.

[boreal willow]

so, I should do a coroutine for this?

[hearty dock]

that's one way to wait a frame, sure

Realistically you should use asynchronous scene loading

[civic flicker]

photon is good

[sand hornet]

I am getting this error in mirror where it says "Not possible to Convert type "ulong" in "string" "

[frozen summit]

Ok cool, I’ve seen this one multiple times.. went ahead and went with this option. Ty for reply :]

[little sorrel]

How do I use gameobject.find for only objects I have ownership over in PUN 2

[wide girder]

Find all the objects first, then iterate them and filter by ownership.

[little sorrel]

so like cam = gameobject.find("camera");

[wide girder]

That would only find the first object with that name. You want to use the plural find functions.

[little sorrel]

so I would do gameobjectS.find

[wide girder]

No

[little sorrel]

and thenhow do I filter by ownership

[wide girder]

For or foreach loop, get the view component and check if it belongs to the client.

[little sorrel]

then what do I do

[wide girder]

Find objects of type should work
https://docs.unity3d.com/ScriptReference/Object.FindObjectsOfType.html

I'd note though, that you should probably cache your components instead of finding them at runtime.

[little sorrel]

how would you do that

this doesn't work

[wide girder]

Ughh... It's assumed that you are at least intermediate+ level coder if you're doing networking, so you should know that...😬

[wide girder]

What doesn't?

[little sorrel]

.

[wide girder]

That screenshot doesn't explain what doesn't work.😅

[little sorrel]

putting the photon view onto the script directly

[wide girder]

In what sense does it not work?

[little sorrel]

using System.Collections.Generic;
using UnityEngine;
using Photon.Pun;

public class MoveCamera : MonoBehaviourPunCallbacks
{
    public PhotonView pv;
    private GameObject player;

    void Update()
    {
        if(pv.IsMine){
            Camera.main.transform.position = new Vector3(player.transform.position.x, player.transform.position.y, Camera.main.transform.position.z);
        }

    }
}

[wide girder]

player is not assigned.

You only assign pv in the inspector.

[little sorrel]

OH MY GOSH

I'm dumb

[woven kiln]

Does anyone has experience with Unity Transport? How does it compare to other networking solutions?

For massive multiplayer games. Can it handle the load?

[green moat]

hey networking folks, do you have any idea how to make a simple patcher for my multiplayer game? I mean, the game should check the game version by start and if it doesn't match, download something

[wide girder]

Need to have some kind of backend(server) that you make a request to. For example retrieve the latest version hash/Id or something. Then check with the locally saved hash and if they don't match, initiate the download.

[spring crane]

For a large project it's probably more straightforward to test transports by downloading them and doing a load test.

[green moat]

ok thank you, do you have an example for me? Just so I know how it could look like?

[wide girder]

Example of what part exactly?

[green moat]

maybe unity docs or something

[wide girder]

There's no unity docs for that. It's mostly work outside of unity. The only relevant unity part is perhaps the WebRequest API if you choose to use it instead of your own solution.

[green moat]

ah ok perfect, thank you

[wide girder]

Making the request is gonna be the lesser of your problems.😅
https://docs.unity3d.com/ScriptReference/Networking.UnityWebRequest.html

[woven kiln]

On my network architecture my game map is divided by chunks, each tick the server computes the snapshot delta for each chunk.
The same buffer is "brodcasted" to all peers inside the same chunk.

Looks like i can`t do it using Unity Networking, i need to write the buffer per peer. Is it right?

here on BeginSend i need to rebuild the buffer every time

Same for snapshot interpolation. It is ideal to compute the buffer 1 time and broadcast it to all peers

[meager abyss]

does anyone know how to make SignalR work with unity ?

I want a normal C# app to be the server

(or if you know something better you can tell me)
I basically want players to be able to communicate with the server and the server to know when a player looses connection

[civic flicker]

is this a web application?

[meager abyss]

It’s not a web app it’s a console application

[civic flicker]

you could use photon

it'll automatically create port forwarding for you, and there's in built functions that'll do what you want

[meager abyss]

Thank you! I’ll try it later today

[cerulean salmon]

hey im not that good at c# and i would love some help i looked on some tutorials on how to make a lobby for a game im working on its based on NetCode and i cant find how to fix the error. Any helps would be thanked🙏

[civic flicker]

its saying right there

that name doesnt exist in NetworkManager

[cerulean salmon]

It does tho that is what i dont understand

[civic flicker]

yea im trying to figure it out too

[civic flicker]

https://docs-multiplayer.unity3d.com/netcode/0.1.0/api/MLAPI.NetworkManager.ConnectionApprovedDelegate/index.html

ah

its NetworkBehaviour

not MonoBehaviour

you have to inherit from NetworkBehaviour instead

[cerulean salmon]

But its passwordnetwork behaviour

[civic flicker]

thats the name of your script

[cerulean salmon]

Ohh

Ye

Got it

[civic flicker]

switch MonoBehaviour for NetworkBehaviour

[cerulean salmon]

And thats it?

[civic flicker]

it also inherits the MonoBehaviour classes so dont worry

i think so

give it a try

[cerulean salmon]

Thank you

Ye i will thanks

still didnt work

same error

got any other ideas?

[spark violet]

hey guys what would u advice if i wanna create multiplayer for like 2-4 players not setting up servers etc or w/e just them all connection to one players client what way is best? any tutorials you would recommend or tools ?

@cerulean salmon

[civic flicker]

hmmm that's weird

did it give you a different error?

[spark violet]

@civic flicker

[cerulean salmon]

dapper dino on yt he got some really good tutorials

[cerulean salmon]

nope

[civic flicker]

stop pinging

use photon

[civic flicker]

hmm thats weird

you said youre following a tutorial

maybe he did something you forgot to do?

[olive vessel]

I would take care watching any old "MLAPI" tutorials, Netcode for GameObjects has changed a fair amount

https://docs-multiplayer.unity3d.com/netcode/current/basics/connection-approval/index.html

As you can see here, the name has changed

[maiden bobcat]

Hello guys how are you all doing? I am making an app in Unity where I have a list of all characters from the mixamo website in the app in a scroll view and each item s the character image and its name, I finished all the design but now I need to get the characters and I dont have a lot of experience in this field all I know is I need to get a request and then maybe look in the HTML code of the characters and get each one's image and name but idk how to do that can anyone help?

[cerulean salmon]

rewrote the entire code still same problem

[civic flicker]

@cerulean salmoncheck this

[civic flicker]

that tutorial is probably outdated

[cerulean salmon]

ok

thanks

so i need to change the NetworkManager.connectionAprrovedDelegate?

[civic flicker]

it probably has another name yea

honestly i also used Netcode for GameObjects and it was a complete mess just to do simple stuff like synchronizing the players

i switched to photon and had it set up in 1 hour

[cerulean salmon]

idk really how to setup a multiplayer thing

thats why i followed a tutorial

[civic flicker]

go with photon then

https://www.youtube.com/watch?v=93SkbMpWCGo&ab_channel=Blackthornprod

[cerulean salmon]

bro i just saw this video b4 u sent me it

thx tho

i will use this instead

[sand hornet]

Is the new unity multiplayer netcode good? For using with steam and p2p

[woeful shale]

Hi guys, I'm having problems with the UI of my game. The weird thing is that the UI updates when I play the single player part of the game, but in the multiplayer section when 2 players are in the room, the UI doesn't update anymore. Please help.

[fervent pebble]

what exactly does the UI do then when you have two people in the room

and does it work normally as long as there is just one player in the room but still connected to the network?

[woeful shale]

So the UI, represents the health of the player. So when both players do damage to each other it should decrease the health.

[woeful shale]

Yes, it does.

[fervent pebble]

I would add a debug line to check whos playerhealth you are accessing, both in SP and MP

[woeful shale]

I did, and It's pointing at the right player

[fervent pebble]

And who is it pointing at when you have 2 players

[woeful shale]

I'm trying to get the console logs coming from the other build, to see. But local is getting the right one.

[woeful shale]

Yes, I confirm each multiplayer instance is capturing the right player.

I debug, the health values, and is not refreshing, it's like the player isn't doing any damage

[fervent pebble]

Are you certain that they indeed do damage to one another?

[woeful shale]

I checked before and they did, I will check again.

[woeful shale]

Yes, they are doing damage to each other, it looks like the UI is not receiving the reference.

[woeful shale]

I got an idea of what could be happening, I'm debuging the script that holds the PlayerHealth logic, and Logged this.gameobject.name and for some reason is taking the other instance reference instead of his

[misty gulch]

is it possible to call a Coroutine as a server RPC? (Unity networking for gameobjects)

[spring crane]

You certainly can as a result of an RPC

[misty gulch]

Thats what i get:
Error: ```(0,0): error - RPC method must return void!````
Code:

void start(){
  StartCoroutine(FootstepGenServerRpc());
}
[ServerRpc]
    private IEnumerator FootstepGenServerRpc(){
        begin:
        for( ;steping; ){
            GameObject step = Instantiate(Footsteps,new Vector3(transform.position.x, transform.position.y, 121f), transform.rotation);
            step.GetComponent<NetworkObject>().Spawn();
            yield return new WaitForSeconds(.3f);
            if(!steping) break;
            step = Instantiate(Footsteps2, new Vector3(transform.position.x, transform.position.y, 121f), transform.rotation);
            step.GetComponent<NetworkObject>().Spawn();
            yield return new WaitForSeconds(.3f);
        }
        if(!steping){
            yield return new WaitForSeconds(.3f);
            goto begin;
        }
    }

[spring crane]

Have a separate RPC method that does whatever you want with the coroutine

[misty gulch]

Do you mean something like this?

void Start(){
  FootstepGenServerRpc();
}
[ServerRpc]
    private void FootstepGenServerRpc(){
        begin:
        for( ;steping; ){
            GameObject step = Instantiate(Footsteps,new Vector3(transform.position.x, transform.position.y, 121f), transform.rotation);
            step.GetComponent<NetworkObject>().Spawn();
            StartCoroutine(WaitServerRpc());
            if(!steping) break;
            step = Instantiate(Footsteps2, new Vector3(transform.position.x, transform.position.y, 121f), transform.rotation);
            step.GetComponent<NetworkObject>().Spawn();
            StartCoroutine(WaitServerRpc());
        }
        if(!steping){
            StartCoroutine(WaitServerRpc());
            goto begin;
        }
    }

    [ServerRpc]
    private IEnumerator WaitServerRpc(){
            yield return new WaitForSeconds(.3f);
    }

[spring crane]

No. Normal method for the RPC that then does whatever you want with the coroutine.

[misty gulch]

i either missunderstand you or it just doesnt work. though i think i missunderstand because i aint that good in networking. Could you be so kind and give me an example pls😅 ?

[spring crane]

Not really sure what you are trying to do here when it comes to the coroutine. I would not assume the networking solution would manage coroutines for you

[misty gulch]

i need to spawn footsteps for all the players running around the world and because clients cant spawn network prefabs i need the server to spawn them. Now, in the footsteps function i need to wait between those steps .3 secs until i spawn the next. thats why i would need a coroutine

[full girder]

what are the current networking solutions that unity has? I haven't kept up on Unity in a while

[spring crane]

As in official solutions? Netcode for Entities, Netcode for GameObjects and Transport. There also are services like Relay and Lobby.

[full girder]

Wait, what are those? Can you forward me to resources for these? Do people still use Mirror and stuff?

[spring crane]

Check the pinned message. Yea you'll still likely find thirdparty stuff superior for most projects.

Photon has cool new products

[full girder]

alright thanks mate

[woeful shale]

So I got an issue right now. I'm instantiating 2 players into a room, both have the same health scripts. But if I Debug.Log(this.gameobject.name), is printing the name of the other player instead of his. Is there a way to prevent this?

[delicate inlet]

Im Makeing a project online multiplayer and it gives the following error when I'm done writing the ui code (its useing network manager)

Here is the code aswell

Anyhelp much appreciated

[spring crane]

I don't see how that code would print a name of some other object. Are you maybe changing the name too late for that?

[frozen summit]

So this code works for first person who joins, when second person joins.
But it doesn't show first person's color to the second person that joins.

photonView.RPC("SetColor", RpcTarget.All, new Vector3(setColor.r, setColor.g, setColor.b));

[PunRPC]
private void SetColor(Vector3 setColorVector)
{
    Color setColor = new Color(setColorVector.x, setColorVector.y, setColorVector.z);
    GetComponent<SpriteRenderer>().color = setColor;
}

any suggestions? 🤔

[woeful shale]

This is the code I'm using for Debug.Log it cames from PlayerHealth script, and it's attached to each Player.

By printing it, it takes the other player object name instead of his own object name

[spring crane]

Sounds like the information is just not synced to new players. Send the colors to the joining player on join event.

[spring crane]

I don't see how that could happen. How are the names set? You could try printing InstanceID instead.

[woeful shale]

The console log from the both builds.

[spring crane]

You sure the other PlayerHealth is running its Update?

[woeful shale]

How do I make sure is both are running their update?

[fervent pebble]

hey, I struggle to flip the character sprite on guest clients. I have followed the tutorial of Photon, which I use, but it wont do it
https://gdl.space/mijoyuceri.cpp

[spring crane]

Try passing gameObject as the second parameter to Debug.Log

This allows you to highlight the source of the log by clicking on it

[woeful shale]

Local Build vs Android Build

[spring crane]

Does clicking on the console messages highlight different gameobjects?

[woeful shale]

Yes, it highlight the correct gameobject.

[spring crane]

So 2 logs back to back highlight different gameobjects?

[frozen summit]

The whole issue ive been having is passing variables between clients..
Seems like every new instance erase all previous data and re-initializes variables.

I am even trying to do

        PhotonNetwork.LocalPlayer.CustomProperties["go"] = newPlayer;
        PhotonNetwork.LocalPlayer.CustomProperties["color"] = color;
``` when i create player

and i set colors when new player joins
```csharp
        foreach (var player in PhotonNetwork.PlayerList)
        {
            GameObject go = (GameObject) player.CustomProperties["go"];
            go.GetComponent<SpriteRenderer>().color = (Color) player.CustomProperties["color"];
        }
```but it says `go` does not exist

[spring crane]

Seems like every new instance erase all previous data and re-initializes variables.
Clients don't have any data that isn't sent to them through some means. Also make sure you aren't confusing properties of one player with properties with some other player.

Storing gameobject references in custom properties doesn't seem right. You probably need to sync the photonView viewId and convert to gameobject yourself for this to work.

[frozen summit]

i thought photonnetwork would contain data from other clients and be able to transfer them to new ones

i'd imagine that's how multiplayer works in general

and ig i just assumed there was an easy way to do it

[spring crane]

Don't assume that anything is transferred until you know about a feature that does it.

Multiplayer solutions can't really guess what state needs to be transferred

https://doc.photonengine.com/en-us/pun/v2/gameplay/synchronization-and-state

[woeful shale]

Here's the two console logs

Yes, both highlight different gameobjects

Now only one updates the health value, the other not, and both have to decrease their values when colliding

Only one does it.

[frozen summit]

bruhhh why didnt anyone suggest to change RpcTarget.All to RpcTarget.AllBuffered lmaooo took me a whole day to find this xd

[spring crane]

Because assembling room state from bunch of replayed messages that get removed when the player who created them leaves feels hackier and more error prone than just explicitly sending the state on player join or using properties.

[woeful shale]

Hey Danny I manage to figure it out, my error I had to make some some changes by implementing OnPhotonSerializeView and other work around with the way the players spawn to the level. Thanks for the help

[serene saddle]

Do y'all support Photon dev here

[wide girder]

We don't support "Photon dev" here.

Jk

If it's unity related, then ask away.

[summer anchor]

what is better, mirror or netcode?

[wide girder]

What is better, cats or dogs?

[summer anchor]

😂

well im super new to unity, been using mirror, just starting a new project and wondering the netcode has any benefits to it?

[wide girder]

Research it. And compare to your experience with mirror.

[shell nest]

(Photon) How can I synchronize text and inputfield text across clients? RPC?

[dusky storm]

many may not remember, but Mirror only exists because Unity abandoned their previous netcode 🙂

[oblique herald]

trying to make a mp game but already having problems with fizzysteamworks 😄

[amber pilot]

In unreal engine, There is replication for multiplayer, But in unity, Which method is officially used for multiplayer?

[olive vessel]

Netcode for GameObjects is the official Unity multiplayer package

There are other solutions like Mirror and Photon (PUN, Fusion)

[oblique herald]

Welsh do you know why fizzy steamworks doesnt work?

Watching a tutorial on how to set it up and all they did was import mirror and fizzysteamnetworks but i did and got 2 errors

[amber pilot]

Which method would you prefer for making professional games?

[olive vessel]

Not sure, I remember reading about it in the Mirror Discord though, they're good over there

[amber pilot]

which method is most popular in other words

[olive vessel]

Popularity ought to be irrelevant

You pick the solution that works for you

I personally found Mirror to be very intuitive, and it has all the features I wanted

[amber pilot]

ok thanks!

[shell nest]

I've been wondering this for a long time.

[austere yacht]

without custom code. Every netcode project is different and no generic solution can satisfy all. If you specify what you mean by sync a input field the how to should be obvious.

[shell nest]

So that if a user types something into an input field, the input field text updates to it across all clients.

same for text.

[austere yacht]

and how is it not obvious how to implement that?

[shell nest]

why would it be?

I know almost nothing about Photon.

Should I use an ExitGames.Client.Photon.Hashtable?

[austere yacht]

A proven strategy is to learn the API and features of the tools you use and then use them to solve your problems.

[shell nest]

Why would an implementation be obvious though?

[austere yacht]

because a fully specified problem is a solution

[shell nest]

what

[olive vessel]

Have you tried looking up how to synchronise data between clients?

[shell nest]

yes

[olive vessel]

So why didn't that help?

[digital compass]

I'm using Unity's networking system and I have a problem where when I spawn in a client, the mouse position gets really offset. I'm trying to spawn a gameobject at the mouse, but the object is sometimes nowhere near the mouse, always at least a bit away from it

[shell nest]

because I didn't comprehend it.

[austere yacht]

Did you try to figure out the bits you did not comprehend?

[shell nest]

yes

that's why I asked if I should use a hashtable or an rpc or something like that.

[austere yacht]

And you gave up?

[shell nest]

no

[olive vessel]

I don't get why a Hashtable is useful here

[shell nest]

I don't know.

that's why I'm asking you.

[olive vessel]

Right so use the other option you discovered

RPCs are designed to sync information

[shell nest]

rpc?

ye

[austere yacht]

sounds like you are asking random unrelated questions

[olive vessel]

It's their purpose

[shell nest]

but I haven't got them to work.

that well lol.

[olive vessel]

So what issues have you had with RPCs?

[shell nest]

not getting them to work obviously.

[austere yacht]

🥄

[olive vessel]

How descriptive

[shell nest]

I don't really know how to use them.

[haughty heart]

You just mistyped RPC in your code, that's all.

[shell nest]

what

mistyped?

[haughty heart]

Yep

[shell nest]

is it possible to call rpcs in other classes?

[olive vessel]

They're just methods

[haughty heart]

Because not getting it to work, obviously was exactly enough info to solve your issue.

[shell nest]

yes but you have to call them with a string, right?

[olive vessel]

Right so make a method that calls the RPC, and call that method instead

[shell nest]

right stupid me

Don't I have to do something like this too?

I'm confused. ```cs
PhotonView view;

void Start()
{
    view = GetComponent<PhotonView>();
    view.RPC("RPC_SetText", RpcTarget.AllBuffered, dict.randomLetterText);
}

[PunRPC]
void RPC_SetText(TMP_Text text)
{
    text.text = text.text;
}

please don't call me even more stupid.

I know.

I wanna set more text strings than that though.

[olive vessel]

I wouldn't sync the actual Text component

[shell nest]

no?

[olive vessel]

No

[shell nest]

I'm syncing the text of it though.

[olive vessel]

You send the component in an RPC, can Photon even do that?

[shell nest]

text.text = text.text sounds like saying string foo = foo;

[shell nest]

yes

[olive vessel]

Lets say I type a message in a chat, what do you think happens

Like here in Discord

[shell nest]

internal static void RPC(PhotonView view, string methodName, RpcTarget target, bool encrypt, params object[] parameters)

idk

[olive vessel]

Engage your brain, this is an easy question

In simple terms, what does this chat menu do

[shell nest]

it gets sent to you via their servers?

[shell nest]

Discord?

[olive vessel]

What does it send?

[shell nest]

data

[olive vessel]

It doesn't send my text field

[shell nest]

lol

[olive vessel]

It sends my message, the string I type

[shell nest]

yeah

but it has to implicitly know which text field I'm talking about, right?

[olive vessel]

Every client has this script, which references their own input field

[shell nest]

the text is random though.

and input fields don't just automatically sync.

[olive vessel]

So a client sends one of those to every other client?

[shell nest]

not yet.

that's what I want to happen.

[olive vessel]

Right

So what's the issue with sending a string using an RPC?

You don't need to send over the text object

My instance of the script in my client references my text field, not yours

So when you RPC me a string, it will set my text field

[shell nest]

you're saying that I have to make a function for every single text field?

[olive vessel]

No, I have no idea what the structure of your game is

[shell nest]

it's a word game.

online

[olive vessel]

I mean technically most games involve words, so that's a largely unhelpful description

[shell nest]

you have to come up with words.

that contain a set of random letters.

not come up with, enter.

[olive vessel]

So you give me letters, I make them into a word

[shell nest]

it has to contain "ab" in this case.

[olive vessel]

Right

[shell nest]

yes

a word that exists.

[olive vessel]

So the host sends everyone a string "EG" or something

Then they can all send back their string "Egg"

[shell nest]

yeah if you're talking about the input field.

[olive vessel]

So you want an RPC to send everyone the random letters, literally just send them a string

[shell nest]

example:

then when you press enter, they get randomized.

[shell nest]

so it would be one function for each input field then?

[olive vessel]

No

[shell nest]

I mean text input thing.

what then?

[olive vessel]

Are you suggesting every client needs their own RPC to send the data?

[shell nest]

I guess.

[olive vessel]

Well they don't, there's probably some ID you can send with their answer

[shell nest]

answer, as in word?

or what

how would I use an id?

[olive vessel]

Answer as in the thing they typed yes

Well I don't know PUN, but I assume you have a way of identifying clients

Name, number idk

[shell nest]

oh ye

Wouldn't this work? ```cs
void Start()
{
view = GetComponent<PhotonView>();
view.RPC("RPC_SetText", RpcTarget.AllBuffered, dict.randomLetterText.text);
}

[PunRPC]
void RPC_SetText(string text)
{
    dict.randomLetterText.text = text;
}

if I were to call the function somewhere else (rpc).

whenever the random letters are updated for instance.

[olive vessel]

I assume that this code would sync whatever is typed in that field to all clients at the Start

[shell nest]

ye

but if I were to change that, as I said.

[olive vessel]

Sure, give it a go

[shell nest]

something like this: ```cs
public void CallRPC(TMP_Text textField, string text)
{
view.RPC("RPC_SetText", RpcTarget.AllBuffered, textField, text);
}

[PunRPC]
void RPC_SetText(TMP_Text textField, string text)
{
    textField.text = text;
}

[olive vessel]

Why are you sending the text field?

You don't even use the reference you send

[shell nest]

for implicitness.

[olive vessel]

I think you ought to get a dictionary and define that word

Because if it were even a good idea to send the text object, it'd be for explicitness

[shell nest]

I can't figure out how exactly the script is supposed to know what text field I'm talking about.

[olive vessel]

The script has a reference to a text field right?

[shell nest]

no

I don't wanna create multiple functions.

[olive vessel]

I give up

I am trying really hard here, and I'm getting sod all

[shell nest]

you said that I shouldn't.

should I?

[olive vessel]

No for fucks sake

[shell nest]

then what?

let's say that I were to have multiple text fields.

how would the script know which one I'm talking about?

if the only parameter was a string.

[olive vessel]

Give me a few minutes

[shell nest]

for sanity?

lol

[olive vessel]

It's too early for gin, I'm writing an example instead

[shell nest]

oh ok thanks.

[olive vessel]

public class RandomLettersOrSomeShitIdfk
{
    public TMP_Text randomLetterText; //Set this in the inspector
    
    public void CallRPC(string text) //Method to call this RPC from other classes
    {
        view.RPC("RPC_SendRandomLetter", RpcTarget.AllBuffered, text); //RPC call
    }
    
    [PunRPC]
    private void RPC_SendRandomLetter(string text) //When this is called, every client will receive this RPC
    {
        randomLetterText.text = text; //This will set the client's individual text field to this text
    }
}

This script will exist on all clients, there will be a Text object on all clients that this script refers to

[shell nest]

this is what I'm talking about, that's one function for one text field.

[olive vessel]

So each client has how many text fields?

[olive vessel]

Two

[shell nest]

yes

two functions.

[olive vessel]

Well that's expected surely, those fields do different things

[shell nest]

^

[olive vessel]

You are testing me

[shell nest]

not really

[olive vessel]

Oh you fucking are

You know full well you haven't been crystal clear, so I won't apologise for making a mistake

[shell nest]

everyone makes mistakes.

it's fine.

[haughty heart]

@shell nest This person is taking the time to talk to you, stop being insufferable.

@olive vessel This is probably a time to take a break and leave it, it's not worth the annoyance.

[serene saddle]

Alright, so I'm working on the Multiplayer aspect of my game now through Photon. I have a 'NetworkController' script attached to a GameObject which has something along the lines of this in it..

OnConnectedToMaster() {
   PhotonNetwork.JoinOrCreateRoom("Test", roomOptions, TypedLobby.Default)
}

OnPlayerEnteredRoom(Player newPlayer) {
   PhotonNetwork.Instantiate("player-blue", gameController.transform.position, gameController.transform.rotation);
}

The player-blue prefab has a PhotonView attached to it, with a PhotonTransformView attached aswell. But when two players join, it creates the Prefab but it doesn't seem to be syncing the positions.

It's very possible I'm doing this wrong. Any help greatly appreciated.

[serene saddle]

My 'Player' prefab (screenshot above) contains all of the scripting.

[civic flicker]

public class Attack : MonoBehaviour
{
    [SerializeField] private bool isAttacked;
    [SerializeField] private Slider playerHP;
    [SerializeField] private int damage;
    [SerializeField] private PlayerMovement playerMovement;

    // Start is called before the first frame update
    void Start()
    {
        
    }

    // Update is called once per frame
    void Update()
    {
        if (isAttacked && playerMovement.view.IsMine)
        {
            playerHP.value = playerHP.value - damage;
            isAttacked = false;
        }
    }

    public void OnTriggerEnter2D(Collider2D other)
    {
        if (other.CompareTag("Player"))
        {
            isAttacked = true;
            playerHP = other.GetComponentInChildren<Slider>();
        }
    }

    public void OnTriggerExit2D(Collider2D other)
    {
        if (other.CompareTag("Player"))
        {
            isAttacked = false;
        }
    }

Hallo, how can i identify only a single player (the one that is being attacked)?

[misty gulch]

How do i make an string Network variable? Every solution from the documentation is outdated or doesnt work. (using Networking for Gameobjects)

[olive vessel]

https://docs-multiplayer.unity3d.com/netcode/current/basics/networkvariable/index.html#strings-networkvariable-fixedstring-example

[misty gulch]

thats the problem. idk which namespace i need to include to use Fixed private StringContainer m_StringContainer = new StringContainer(); or private NetworkVariable<FixedString128Bytes> m_TextString = new NetworkVariable<FixedString128Bytes>();

[olive vessel]

Unity.Collections

Just Google the type

[misty gulch]

thanks, i miss read the Unity.Collections with System.Collections

[misty gulch]

also, how do i pass a param to an Server RPC method? i get an mega error when i try

public class Weapon_Destroy : NetworkBehaviour
{
    public GameObject player, PickedUp;
    private Inventory_Handler inv_handler;
    // Start is called before the first frame update
    private void OnTriggerEnter2D(Collider2D collision){
        if(IsOwner){
            DestroyWeaponServerRpc(collision);
        }
    }

    [ServerRpc]
    private void DestroyWeaponServerRpc(Collider2D collision){
        if(collision.gameObject.tag == "Player" && collision.GetComponent<Inventory_Handler>().lootcount < 3 || collision.gameObject.tag == "Bot" && collision.GetComponent<Bot_Inventory>().lootcount < 3){
            Destroy(this.gameObject);
            gameObject.GetComponent<NetworkObject>().Despawn();
        }
    }
}

Error:
Don't know how to serialize Collider2D. RPC parameter types must either implement INetworkSerializeByMemcpy or INetworkSerializable. If this type is external and you are sure its memory layout makes it serializable by memcpy, you can replace UnityEngine.Collider2D with ForceNetworkSerializeByMemcpy`1<UnityEngine.Collider2D>, or you can create extension methods for FastBufferReader.ReadValueSafe(this FastBufferReader, out UnityEngine.Collider2D) and FastBufferWriter.WriteValueSafe(this FastBufferWriter, in UnityEngine.Collider2D) to define serialization for this type.

[olive vessel]

I don't think there's a built in serialiser for a Collider2D

Maybe try finding a way of passing what you want rather than the entire thing

[austere yacht]

also decide if this is supposed to be client or server authoritative, if its client-auth, you can do all the validation on the client and just send a despawn signal, if its server auth, you'd want to detect that trigger collision on the server anyway and no RPC is needed.

[misty gulch]

if i try to despawn it on the client it gives me an error that only the server can spawn/despawn network prefabs

[serene saddle]

Does anyone have any advice here? A little lost otherwise. If I just add the PhotonView to the 'Player' prefab and remove it from both 'astronaut-blue' and 'PlayerPrefab', it seems like once there's two clients connected, the master is controlling the secondary's screen.

[civic flicker]

make sure to use photonview.isMine whenever you're dealing with movement or individual syncs like hp/stamina

https://youtu.be/93SkbMpWCGo

[serene saddle]

I actually am as far as I'm aware. if(!photonView.IsMine && PhotonNetwork.IsConnected) { return; } is on any move request pretty much.

[civic flicker]

I'm on my phone rn but maybe try to check that video

it helps setting up a lobby + characters

[opaque ember]

can someone help me with photon?

I wanted developer cosmetics for my game

[summer anchor]

my player movement has stopped syncing. i have network transform with client auth, rotation and position ticked. it is syncing rotation just not position for the clients, any ideas why?

[patent fog]

Did you perhaps add a feature that messes up transforms since it worked ?

[summer anchor]

Not that i can think of. its a pretty fresh project, just has player movement, and weapon switching, the weapon switching is just a syncvar hook that enables / disables the child objects

host can see both players moving / switching weapons. the client cant see the host moving, only rotating and changing weapons

[civic flicker]

public class Attack : MonoBehaviour
{
    [SerializeField] private bool isAttacked;
    [SerializeField] private Slider playerHP;
    [SerializeField] private int damage;
    [SerializeField] private PlayerMovement playerMovement;

    // Start is called before the first frame update
    void Start()
    {
        
    }

    // Update is called once per frame
    void Update()
    {
        if (isAttacked)
        {
            playerHP.value = playerHP.value - damage;
            isAttacked = false;
        }
    }

    public void OnTriggerEnter2D(Collider2D other)
    {
        if (other.CompareTag("Player"))
        {
            isAttacked = true;
            playerHP = other.gameObject.GetComponentInChildren<Slider>();
            playerMovement = other.GetComponent<PlayerMovement>();
        }
    }

    public void OnTriggerExit2D(Collider2D other)
    {
        if (other.CompareTag("Player"))
        {
            isAttacked = false;
        }
    }
}

i want to have my enemy attack a player and make him lose HP, while the other one still has full HP. my problem is that for some reason the one that is being attacked is not the one losing hp, and vice versa. (im using photon)

[terse idol]

Hi, how can I fix this error?

[spring crane]

That's not an error. If you want to change it, go to the PhotonServerSettings ScriptableObject in your project.

[civic flicker]

i just learned about RPCs

the enemy is removing HP from my players

but whats weird is

if it attacks player 1 it removes hp from player 2 and vice versa

[serene saddle]

So I might of been overthinking my project's instantiation.

I have a 'PlayerPrefab' which hosts the camera, movement, controllers etc and I have an actual character inside that Prefab which has a PhotonView & PhotonTransformView attached to it.

When I start the game, I have set up to automatically join or create a room, and Instantiate the character (which has the photon views) and parent that to my PlayerPrefab.

When another person joins, I see their character but their position is not synced at all and I'm unsure why

Under that inactive capsule is where the first character (me) would load in.

And then the prefab which gets instantiated and parented to 'PlayerPrefab' looks like https://i.imgur.com/VeIF1uM.png

[oblique herald]

why dont these glasses sync up but the movement etc does it?

Is it cause of this ?

i got if (hasAuthority)

[oblique herald]

Isn’t if (hasAuthorityk) to see if it’s the client so it will only do it for the client ?

But then that’s weird cause I have my movement func inside a if (hasAuthority) but that replicates, Is it cause the player is a network transform ?

[serene saddle]

Bump on this.

[civic flicker]

if youre using netcode for gameobjects then you need a client network transform

[oblique herald]

umm just a question, Ill send a video of my animations, They do not work online, And when i am in the scene view at game view, In the game it looks as it should but in the scene view it looks well kinda weird

https://streamable.com/bezk4r

Or wait, No

When i come into a certain radius of the player it starts animating

tf

Think i found it

[serene saddle]

I managed to get player positioning, rotationing & animations synced. On any object that I want to have clickable, I have a 'void Click()' function within the script attached to that object. Click() is called by a Raycaster on my PlayerController which checks to ensure that what I'm looking at isn't null and is within a distance of < 2.5m. What is the easiest way that I can simulate a click across all clients?

[serene saddle]

GetComponentInChildren<PhotonView>().RPC("ClickObject", RpcTarget.All, hit.transform.gameObject); is something I tried but it's complaining saying GameObject doesn't exist.

[flint cove]

I have a guy who is programming a game for me is having this issue with photon’s network if more than 4 players try to join 1 room. Any suggestions…? Thanks!!!

https://cdn.discordapp.com/attachments/1017081313834049596/1029078114149601311/unknown.png

[flint cove]

It’s creating a duplicate room when the 5th player joins and not keeping them in the same room.

[serene saddle]

Okay, it turns out you can't pass objects over through Rpc, fair enough - so my solution was to pass over the Vector3 and do a very small Physics.OverlapSphere() on the hit.point of my ray cast to send a message to objects.

Well now that's gotten me the error message:
RPC method 'ClickObject(Vector3)' not found on object with PhotonView 1001. Implement as non-static. Apply [PunRPC]. Components on children are not found. Return type must be void or IEnumerator (if you enable RunRpcCoroutines). RPCs are a one-way message.

With this code:

    [PunRPC]
    void OnClick()
    {
        RaycastHit hit;

        if(Camera.main)
        {
            Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
            if (Physics.Raycast(ray, out hit))
            {
                if (hit.transform != null && hit.distance <= 2.5f)
                {
                   // ClickObject(hit.point);
                   GetComponentInChildren<PhotonView>().RPC("ClickObject", RpcTarget.All, hit.point);
                }
            }
        }
    }

    [PunRPC]
    public void ClickObject(Vector3 objTransform)
    {
        RaycastHit hit;
        Collider[] x = Physics.OverlapSphere(objTransform, 0.1f);
        foreach(Collider c in x)
        {
            c.SendMessage("Click", SendMessageOptions.DontRequireReceiver);
        }
        // objTransform.SendMessage("Click", SendMessageOptions.DontRequireReceiver);
    }

The PhotonView prefab itself is childed to where this script is being run.

[shell nest]

Why are the scores adding on top of each other? Also, why can both players select the input field at the beginning of the match? https://pastebin.com/1S8GPbJg

[austere yacht]

recruiting goes here https://forum.unity.com/forums/commercial-job-offering.49/ #📖┃code-of-conduct

[spring crane]

You can send view IDs of PhotonViews and convert them back to PhotonView references.

[misty gulch]

So I thought about solving this problem without serializing a whole gameObject to pass it to the Server Rpc method. But there comes no other way to my mind when i think about destroying a NetworkPrefab in the scene.

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

public class Weapon_Destroy : NetworkBehaviour
{
    public GameObject player, PickedUp;
    private Inventory_Handler inv_handler;

    private void OnTriggerEnter2D(Collider2D collision){
        if(IsOwner){
            DestroyWeaponServerRpc(collision.gameObject);
        }
    }

    [ServerRpc]
    private void DestroyWeaponServerRpc(GameObject collision){
        if(collision.gameObject.tag == "Player" && collision.GetComponent<Inventory_Handler>().lootcount < 3 || collision.gameObject.tag == "Bot" && collision.GetComponent<Bot_Inventory>().lootcount < 3){
            Destroy(this.gameObject);
            gameObject.GetComponent<NetworkObject>().Despawn();
        }
    }
}

Do you have any ideas how to either serialize the whole GameObject or have another way to reference to the to be destroyed gameObject?

[austere yacht]

maybe you should redesign this whole system to make it more compatible with networking constraints

a good multiplayer design eliminates unnecessary messages/arguments wherever it can

[misty gulch]

Well you are right. it was originally planned as a Single player playing against Bots. But now i planned an additional local multiplayer. The Game is way to far on the code base for it to 100% optimize for mulitplayer. But lets say i convert it. I then still wouldnt have any clue how to destory a network perfab using ServerRpc

[austere yacht]

converting a game to multiplayer that wasn't planned as such is a death march project

[misty gulch]

Ik but i still wanna go for it

[misty gulch]

There MUST be a way to solve the problem

[austere yacht]

there is a way, but it isn't worth it

[misty gulch]

pls tell me i ll figure it out

[austere yacht]

there is nothing to figure out, its just a long journey digging through all the crappy solutions and workarounds you have to create, fix endless bugs and issues and realize that it took you about 5 times longer than rewriting the whole thing

[misty gulch]

ok lets say i rewrite it, what would i change to destroy that gameobject with an server rpc

actually i am rewriting it rn more or less

[patent fog]

You would work with IDs so you don't have to serialize whole gameobjects

Client sends ID to server, server destroy network object

But having client decide over network object despawn sounds like a smell

You probably should rethink the whole logic to have the server decide what to destroy

In a "somehow perfect" network solution, server is authoritative and client sends only player input

[misty gulch]

Brilliant, thank you. Thats where I am going to start working tonight. Now i just have to figure out how to work with that ids.

👍

[patent fog]

Have fun 👍

[severe fable]

With Netcode NetworkVariables is there a way I can have a nested Array within a struct? For example (screenshot). I cannot use Team struct in the NetworkVariable due to the Jersey[] variable. But Jersey type is INetworkSerializable and can but put into a NetworkVariable by itself.

[gusty fjord]

How are you serializing Team? I think you can write the array length and then each Jersey in the array, on read create an array with the written array length and read back each Jersey

[severe fable]

So it would work i changed Jerseys[] jerseys to Jersey jersey1 Jersey jersey2, Jersey jersey3 etc...but that seems bad

[gusty fjord]

I agree that it seems bad. Does your current version throw errors or are you just not getting the correct data?

[severe fable]

It throws this error:

[gusty fjord]

Ah, I see. To be honest I don't know Netcode well enough to give a definitive answer to this. I believe the issue is that the "normal" C# arrays are a managed type, which is why you can't use it in the NetworkVariable. Not super sure if Netcode has a premade solution for this. If not, you could implement your own implementation inheriting from NetworkVariableBase. Would look along the lines of this: https://docs-multiplayer.unity3d.com/netcode/current/basics/networkvariable/index.html#complex-value-types

Again though, not sure on this in general and maybe someone knows how to fix your issue without doing this

This is the link I actually meant to post btw https://docs-multiplayer.unity3d.com/netcode/current/basics/networkvariable/index.html#custom-networkvariable-implementations

[austere yacht]

This kind of thing should not be handled by net variables but rather by a custom message that maybe just sends a json blob for such low frequency complex messages. A net variable is intended for low complexity, flat, primitive data

[tulip ledge]

How do you use delta time? in netcode?

[austere yacht]

For what purpose?

[tulip ledge]

Movement

[tulip ledge]

controller.Move(inputDirection.normalized * (speed * (Delta?)) + new Vector3(0.0f, verticalVelocity, 0.0f) * (Delta?));

This happens on both the client and server this move logic

[austere yacht]

that doesn’t make sense for plain netcode

you’d only run that code on one side with its local fixed deltaTime and sync the result to the other

if you want to make a deterministic sim (where you sync only inputs) you’d have to implement a network tick system and use the tick interval as deltaTime

[tulip ledge]

controller.Move(inputDirection.normalized * (speed * minTimeBetweenTicks) + new Vector3(0.0f, verticalVelocity, 0.0f) * minTimeBetweenTicks);
it is just so insanely fast no clue what I'm doing wrong

I call this from onTick

minTimeBetweenTicks = (1f / NetworkManager.Singleton.NetworkTickSystem.TickRate);

[slow knoll]

NetCode - Is it good for MMO RPG games ?

[austere yacht]

In the hands of a large exceptionally talented team, it can be, but they’d probably want to make their own framework. Generally for a mmo, a netcode library is only a tiny piece of the puzzle.

[broken fiber]

Hello :D, someone know why in my game i cant get a clientconnection if i'm not a host too, i want to change my player prefab to another variant

there is the code:

The problem is when i want to get the connectionToClient of my only client this is null :c

[mighty whale]

https://hastebin.com/icamiwowiz.csharp

This is a simple server authoritative movement script I wrote, how can I improve this?

By improve, i mean improve security

I know i can do !isOwner

[wide girder]

Is there a security issue?
You could validate the input before using it to make sure that it's not outside the expected ranges.

[main token]

Hi guys, does anyone know how to build the server build when the server build option no longer available? Thanks

[vagrant berry]

Hello! I'm using NGO + Relay and when i'm trying to join a host through a generated joinCode i get that the join code doesn't exist... I have basically copied the docs example for joining and generating with join codes (https://docs.unity.com/relay/relay-and-ngo.html#Configur)

Here's my snippet for joining using TMP input field (see image) I'll also send the error I'm getting

I saw this forum post about this issue: https://forum.unity.com/threads/problem-joining-a-private-lobby-through-lobbycode-joinlobbybycodeasync.1287908/#post-8171102 but I'm already using TMP_InputField as my joinCodeInput... what could be wrong?

[austere yacht]

It’s on the left side, below Windows, Mac, Linux

[main token]

Thanks for the reply!!

[brittle gyro]

I wrote a cheat sheet for Netcode for Game Objects like...the calls any normal person would make. https://global-log-c3f.notion.site/Cheat-Sheet-f615aa3bbcab415abe9647f62aa88339

[mighty whale]

@vestal stump I might be able to help

[vestal stump]

Hey, thanks! Appreciate the very quick helping offer

You want me to dm you or just keep everything in this place? 🤔

[olive vessel]

Best keeping it here, then I can be nosy

[mighty whale]

Yes keep it here

[vestal stump]

Alright!

So

[mighty whale]

[vestal stump]

First I had this issue. Things worked with one character, broke the second the second bean got in tho. The host was unable to move, the camera didn't work with him at all, and there were some other annoying issues

At this point, each player had his own camera attached to them

[mighty whale]

Let me see the controller code

[vestal stump]

Then I got someone's advice and just used one camera in the scene and referenced it from each individual player

It makes the usage of the host character possible, even when I drop the second player into the scene, but now the second player doesn't work.

Also, whenever I build my game, for some reason I can't move???

It works perfectly fine in the editor game simulation tho???

[mighty whale]

It sounds like you are trying to move the client but the server can’t prove it

[vestal stump]

Sure! I'm new to Unity and C# tho, so my bad in advance

[mighty whale]

Just let me see it

Please pastebin it

[vestal stump]

Holup, my bad

[mighty whale]

Hastebin is best imho

[olive vessel]

New to Unity and C# and doing multiplayer, what could possibly go wrong

[mighty whale]

Netcode is pretty easy

At very least, easier than photon

Can’t possibly go wrong

[vestal stump]

https://pastebin.com/vG0hmkC1

[olive vessel]

Citations needed

[mighty whale]

[vestal stump]

This is my movement script. Also want the camera movement script or is this enough?

[mighty whale]

So what you gotta do is move the actual movement into a ServerRpc

[vestal stump]

....

Dumb question

What's an RPC

[mighty whale]

https://docs-multiplayer.unity3d.com/netcode/current/advanced-topics/message-system/serverrpc/index.html

[vestal stump]

"Remote Procedure Call"

Hmm

[mighty whale]

I have a simple 2d one moment

[vestal stump]

sure

[mighty whale]

https://hastebin.com/icamiwowiz.csharp

This is like the bare minimum

[vestal stump]

interesting

Thanks

[mighty whale]

Obviously you’ll just put your rigid body code in a serverrpc

Not the input code

The actual part that moves your entity

[vestal stump]

Mhmm mhmm

[mighty whale]

Notably

[vestal stump]

Btw

[mighty whale]

Id recommend not doing multiplayer or Unity without learning c# but we all know you aren’t gunna take the proper steps amiright

[vestal stump]

Does it make a difference whether I use OnNetworkSpawn or Start

[mighty whale]

It depends on the use case

[vestal stump]

I know Java so I didn't really bother properly trying to figure out C# lol

[vestal stump]

How so?

[mighty whale]

Referencing variables no, but doing things that need to be seen by everyone yes

[vestal stump]

Thanks!

[mighty whale]

Network variables yes

But not regular variables

[vestal stump]

Mhmm mhmm

Still don't exactly know how to work with RPCs but found a tutorial so will look into that

Imma go off for half an hour for smth else now, thanks

Btw, I doubt just changing the movement will be enough to fully fix this

I'm additionally getting the error "GetSceneOriginHandle called when SceneOriginHandle is still zero but the NetworkObject is already spawned!" with my Client

No idea what Unity wants me to do

[mighty whale]

Did you create the RPC?

[vestal stump]

not yet, will do in a bit

Just thought I'd throw that error message out there before leaving for a while

[mighty whale]

If you have a method called that figure out what’s wrong with it 😂

I just know I had this same exact issue you are having now

[split loom]

I'm using Photon to make a multiplayer game. When I call the RPC on the second line in the If statement, it gives me a "Write Failed" exception. It works without the parameter "mouseRay.collider," am I using the parameter call wrong in this method?

This is the method I'm calling

Oh, it seems that Photon doesn't support this sort of parameter

Is there a way to just sync a gameobject component with any changes made?

[vestal stump]

I'm back!

[vestal stump]

Wdym

[vestal stump]

Used RPCs now, nothing changed, still doesn't work

[mighty whale]

What errors is it throwing?

[vestal stump]

The same as before.

[vestal stump]

This

[mighty whale]

Is it moving very slightly in the Unity

Inspector

[vestal stump]

Everything is perfect with the Host as long as it's the Editor version, but the Client do be doing nothing either way

He just

Flying, essentially

Not even affected by gravity

Just staying in the air

Also, again, the Build version isn't working while the normal editor version is, even if I just create a single host

I can move in the build, but only if I'm not grounded

So I can't walk, but jump

I can do these things in the editor tho 🤔

[terse idol]

Hi, what's the best networking solution to my games?

[wide girder]

The best networking solution to your games is the one that fits your games the most.

[mighty whale]

https://hastebin.com/yusuzojovi.csharp

Any particular reason the animations make it to the server for the host but not the client? I did create an OwnerNetworkAnimator recommended by the unity docs

[terse idol]

what would be the best for an fps online game? free of course

thoughts on riptide?

[wide girder]

Probably nothing if you want to have more than 20 players

[terse idol]

I don't

probably just a few friends

[wide girder]

As for which one to choose, is mostly a preference thing. Most of them work in a similar way and have similar API. Might want to compare the plans that they offer(including the free plan).

[wide girder]

Then anything would work.

Might still want to go over and compare the free plans and see of there are any additional limitations

[woven kiln]

Is it possible to remove data from scriptable objects for server build?

I have some AnimationClips reference on scriptable objects that i use both on server and client but it is not needed for server

[paper blaze]

Would this be the right channel to ask this? For instance I need my game to access a mySQL database and I want to know the best way to go about it. I was told I should use PHP in the middle instead of accessing my DB directly from my C# code.

[austere yacht]

All frameworks have an equivalent of onNetworkStart and onClientConnected callbacks

[spring crane]

What they probably meant was that you should have a layer between your client and your backend DB, assuming the DB lives on a server. You probably don't want clients making their own queries and hoping whatever access controls hold in your DB solution.

[paper blaze]

I believe I was directed to use PHP between it.

Is that the best/easiest solution?

[spring crane]

It's just a language commonly used for backend stuff, but C# and many other languages get use in the backend too

Especially back in the olden days

Using a language you know and is capable for the job is probably easiest.

[paper blaze]

OK.

[mighty whale]

Bump, collisions are also collected on host but not client

I do in fact have the network rigidbody and network animator

[mighty whale]

Ive tried to make it into a network in code and it made no difference

[soft helm]

has anyone here used normcore? my prefab is spawning in a weird spot and im trying to change the default spawn location

[meager abyss]

I'm looking for a cheap/(free if that's a thing) way to host a server for a chess game. Someone told me to use microsoft PlayFab but it does look really scary (like one step to the side and I'm billed hard, I just don't know if it's safe to use).

Do you know any alternatives that don't have that factor ?

[soft helm]

my thought would be probably one of the free plans on aws/azure that then charge a couple cents per overuse

or spin up a .net backend you just have running while you play?

and use that until launch?

[meager abyss]

alr I'll look into how spending limits are setup in aws then. thank you

[little sorrel]

When I try and use this script the camera is on the other player. I looked in the inspector and player is set to the right player.

using System.Collections.Generic;
using UnityEngine;
using Photon.Pun;

public class MoveCamera : MonoBehaviourPunCallbacks
{
    public PhotonView pv;
    public GameObject player;

    void Update()
    {
        // forEach()
        if(pv.IsMine){
            Camera.main.transform.position = new Vector3(player.transform.position.x, player.transform.position.y, Camera.main.transform.position.z);
        }

    }
}

[oblique herald]

How can i test my steam multiplayer game without having to run into my brothers room every time i want to test something

[austere yacht]

https://github.com/VeriorPies/ParrelSync

[oblique herald]

Nah didnt work

Just says "Client already made"

[olive vessel]

Yeah I don't think you'll be able to test the Steam bit on one PC

[oblique herald]

ye :/ IM setting up a vps rn

[forest chasm]

if anyone is on i need help trying to figure this out, i have my original project open and a clone i all the way up to having the HOST, SERVER, CLIENT. but when i host on my main project and go in the game, and then switch to my clone and join as client i cant see either player on either project, any ideas?

[storm canyon]

pretty sure if your wanting to connect to yourself, your supposed to build the game not clone the entire project

[forest chasm]

i built an ran the game on both projects

[storm canyon]

you play the game in the editor and open the build from that same project. not anything on another project

[forest chasm]

so build it from the original project, host from build the client from unity project?

[storm canyon]

yeah

[forest chasm]

okay will try!

didnt work still cant see each one another, i even tried following along unity's golden path and im still having the issue of not seeing client and host

[olive vessel]

Show the setup of the player prefab

It might also be useful to add some logs, NetworkManager has a OnClientConnectedCallback

[forest chasm]

i took screen shots i dont know where to find them in file

[olive vessel]

If you use Windows + Shift + S they are copied to your clipboard

[forest chasm]

sorry i still dont know where that is im so sorry

[olive vessel]

If they're in your clipboard, you can just Ctrl + V to paste them here

[forest chasm]

ohhhh

[olive vessel]

And that is set as the prefab on the NetworkManager?

[forest chasm]

i assume so its what spawns when i host or join as client

[olive vessel]

So if you host using the editor, and join as a client using a build, what happens?

Can you show the hierarchy of the editor when a client joins

[forest chasm]

ill try that ive only done the other way around

[olive vessel]

Well if you use the editor to host, you can see any errors

[forest chasm]

okay one moment

this is the hierarchy on the host

not showing the client join

but the client is in the "game"

no errors

[olive vessel]

What does the client see now?

[forest chasm]

just the scene but not the host

[olive vessel]

Create a script and stick it on the NetworkManager object, give me a minute and I'll write some code for it

[forest chasm]

okay will do thank you so much!

[olive vessel]

using Unity.Netcode;
using UnityEngine;

public class RenameMe : NetworkBehaviour
{
    private void Awake()
    {
        if(isServer)
        {
            NetworkManager.OnClientConnectedCallback += ClientConnectedCallback;
        }
    }
    
    private void OnDestroy()
    {
        NetworkManager.OnClientConnectedCallback -= ClientConnectedCallback;
    }
    
    private void ClientConnectedCallback(ulong clientId)
    {
        Debug.Log($"Client joined with ID: {clientId}");
    }
}

If my Notepad++ code is correct, this should log whenever a client joins the server.
Rename this class to the name of the file.

There's a callback for disconnect too, might be handy to add, but this should tell us if the client is actually joining or not

[forest chasm]

okay trying rn

two errors

[olive vessel]

Huh, I thought NetworkBehaviour had isServer

[forest chasm]

i fixed the isserver one the i in IsServer was lowercase

[olive vessel]

Oh, Netcode uses proper conventions

Unlike the rest of Unity Engine

[forest chasm]

what about the yellow one?

[olive vessel]

It's a warning

You can either add override before void on OnDestroy, or just leave it

[forest chasm]

you think ill be fine. the other OnDestory i have is so controlling is indipendent from each client

screw it gonna run it

okay so no dice

i guess the client isnt even joining in the first place

[olive vessel]

So they're on the same machine?

And the connection address is 0.0.0.0

[forest chasm]

how do i check that

sorry to sound dumb

[olive vessel]

Well that'll be a field on the Transport component, which will be attached to the NetworkManager

[forest chasm]

the address is 127.0.0.1

port 7777

[olive vessel]

Yeah that works

[forest chasm]

i guess not for me

[austere yacht]

the server needs a listen address, else nothing can connect (at least it used to be that way)

if you want it to listen on all addresses you can set it to 0.0.0.0

[forest chasm]

i set it to 0.0.0.0 still wont work

[austere yacht]

can you be more specific

[forest chasm]

been troubleshooting for the past hour

i build and run, host on the project and client on the build both instances join a "game" but i get no debug.log that was made to show when client joins so i know its not joining, also isnt in hierarchy so its just not connecting

at first i thought it was connecting i just couldnt see the two prefabs but i now know they arent even connected

[austere yacht]

you should get a log message that the connection failed

[forest chasm]

i get nothing of the such

[olive vessel]

So how do you connect the client

[forest chasm]

well ive run into a new problem, BUT i would try connecting by build running and then hosting from project and then clienting from build if thats what you mean

[olive vessel]

No, I mean how do you do it

What says "Go and connect to this server"

Where do you tell the client to connect

[forest chasm]

only thing i think i can answer that with is the network manager and unity transport

[olive vessel]

Where have you called NetworkManager.singleton.StartClient()

I presume you have also done blah.StartHost() on the server too?

[olive vessel]

Oh for God's sake

[forest chasm]

im pretty sure this is all ive got manually made

[olive vessel]

You use StartHost for all of them

Of course it doesn't work

[forest chasm]

wait

wait

i stg im an idiot

well atleast THANK YOU for opening my eyes! im so sorry

[olive vessel]

It's always the simple things

[forest chasm]

but what about the blah.starthost whats that

[olive vessel]

Well that was because I couldn;t be arsed typing out the full thing twice

[forest chasm]

ahhh okay

well lets try now

but ive run into a new bery recent problem on the build and run clicking host server or client does nothing

[olive vessel]

It probably does do something, but it might not be evident in a build

In the editor, you see the change in the hierarchy

[forest chasm]

trying right now