Questions tagged [networking]
Two or more computers connected together via cable bound or wireless communication links for the purpose of information exchange.
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Design Patterns for client prediction in P2P games
I have a working P2P non real time (think Civ 5) multiplayer strategy game using deterministic lockstep for the game model, but lag can really cause inconvenience. To clarify, units don't move in real ...
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Do server reconciliation and rollback refer to the same thing in multiplayer game networking?
I'm trying to understand the distinction between server reconciliation and rollback networking in games. From what I understand, both involve receiving snapshots from the server and replaying player ...
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How To Deal With Time for Entity Interpolation for Multiplayer Games
I am currently trying to make a simple multiplayer game but had a little bit of trouble implementing client-side entity interpolation for entity movement. For some context, I am aiming to make a ...
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How can I efficiently make a delta snapshot that accounts for entities/components that have been added/removed?
In reference to the snapshot and delta compression approach popularized by Quake 3, but with ECS.
Understand the delta should only contain changes — makes sense.
However, if a snapshot delta no longer ...
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Trouble with NetworkDriver.Create in Unity Networking
I'm encountering an issue while using the NetworkDriver.Create method in Unity Networking and I could use some assistance.
Here's the code snippet where I'm facing ...
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How to update a component field for a single player for all player views?
I'm making a 2 player game in which, when 2 players are in a room, they "toss a coin" to decide which of the two player "skins" they get.
Now, the way I built the player "...
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How to Prevent Fake Packets?
I am new to networking. I am currently using C# TCP/UDP for my multiplayer Unity game. I send player movement by sending a packet with a header containing clientid assigned by the server to the client....
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Unsure why my transform are not syncing
I am using this Kinematic Character Control package
I setup some Character Controls and all looks like it works fine in local. I am trying to setup some basic Networking.
I installed Network for ...
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Client side not getting called on Network object. Netcode for gameobjects
I am trying to get a menu system going for my game. At the moment most of it works. I have been working with the relay system where it gives you a code you input and connect to a hosted server. The ...
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How do I obtain an accurate measure of latency/ping?
I'm writing some C++ on a Windows system to extract latency from Win32 API so that I can make a ubiquitous ping/latency overlay for windows/DX apps, but the values I receive from Windows do not ...
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Networking for Complex AI movement
The enemies in my game are underpinned with a FSM with the motion planning handled by vector steering behaviors, in short - It just calculates a new vector based on obstacles/other objects around it.
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When to use the same class for both client and server versions of an object, vs. when they should differ
I am learning about networking for game development and need some insight.
My knowledge of Unreal Engine is that it uses RPCs and replicated variables for actors. I also know that Unity has Networked ...
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Unity Mirror AWS clients won't connect to server
My Unity project uses the Mirror Networking component and I am using an AWS free tier EC2 instance to host it. I configured the instance following this guide from the Mirror documentation, including ...
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Unity Mirror Networking Audio Behaves Differently on Host and WebGL Client
I am creating a system in Unity using Mirror Networking which will only require one host/server and one client. It is a WebGL build so the client will connect on a browser. I want to send commands ...
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Should networking and rendering be separated in multiple threads?
I've been trying to code a multiplayer client/server prototype game using SFML's networking.
My server and client use TcpSelectors to wait for a certain amount of time for incoming packets without ...
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Keeping characters in-sync in network rollback environment - when player is actively changing its input
I am implementing network rollbacker in real-time action game and found out a very strange issue where local (non-master) player is moved a bit forward then back when changing input.
After narrowing ...
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Networking Fire Rate And Shooting
Context: This is for a multi-player shooting game. It's coded in TypeScript however this question is moreso a netcode/theoretical question rather than a question regarding implementation.
My game ...
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How achievable is determinism when client and server run on different hardware?
Soon I'll have to start implementing networking for a game. To be able to simulate the game on both client and server and have no deviation, simulations need to be deterministic.
But how can any ...
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Multiple Node/Express/Socket.io servers for game lobbies?
Building a multiplayer game on the web that will be able to handle thousands of players at once, separated into independent lobbies/sessions. There may be 20 players in one lobby, 10 in another, 30 in ...
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Design Pattern for Server and Client Objects in Unity Netcode
I'm struggling with how to solve the general problem of having a server-side GameObject which does most of the work and a client side object that's coupled with it for UI purposes only.
As an example, ...
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Unity NetCode - How to call a function when a server or client connects
I want to do a number of things after calling the functions NetworkManager.Singleton.StartHost() and ...
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FPS Networking Rollback Algorithm
I'm attempting to implement rollback networking for an FPS game right now, but I'm not entirely sure about how to proceed.
From what I know, it is bad practice to send over client positions whenever ...
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Steamworks.Net invite to game not getting recieved
When sending an invite with SteamFriends.InviteUserToGame(steamID, "") the receiver doesn't get the invite, even though the InviteUserToGame function ...
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In online multiplayer games, can we transfer a player between two local (or even distant) servers while game processes are running on both servers?
Brief intro 1: about me:
I have this question in the back of my mind for a really long period of time, and I am currently very busy in establishing the offline aspects of the game(will take more than ...
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Input processing on the server-side
The problem:
Let's say we want to create top down MMORPG in browser, and we started with implementing movement of your character.
Okay, so how it works?
Character gets inputs and compares if they are ...
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Display a user webcam over multiplayer session on a wall in the middle of a level?
With the media framework, it’s now quite easy to use webcam or phone camera footage directly in the game.
Is there also a way to share this footage in a multiplayer game? So player A can see the ...
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How do I send data from client to server using LiteNetLib
I started with the example client and server from here and modified the client to send a response back to the server... which never arrives. What am I doing wrong? How do I do this?
Server:
...
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How do you upload an AudioClip to a server in Unity?
My current approach is to take an AudioClip, turn it into a byte array, then put it into an UploadHandler, attached to a UnityWebRequest, to send a POST request to a server.
Right now, when I pass ...
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TCP packets getting more and more delay as time goes by
I have a two processes - a client sending player input data to the server, via TCP.
Right now, it's sending 60 input updates per second. The first update arrives promptly in my test system, where both ...
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How to redact an event in a prediction/reconciliation networking model
I'm struggling with how to handle a particular situation in a prediction/reconciliation server model.
At t=0, Player A is firing. Player B is moving into A's line ...
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Emulating a Forza telemetry server and/or an OBD Bluetooth adapter (in Python)
I'm making a driving game in Pygame, and want to give a player the option to send game data to a Forza-compatible dashboard app (like SIM Dashboard) or to an OBD app (like RevHeadz). How do I do so?
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Server-Client Communication
I have a client, and it's basically a potato client. What I mean by that is it's code is something like this: (This is a junky version of the code, just to make a point)
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Host & Client user input moving both Player prefabs at the same time
I have a player controller attached to the Player prefab - along with the NGO components
Network Object Client Network Transform Network Animator
In the Network Manager I have the Player prefab added ...
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How to listen for a TCP message?
I want to create a Unity WebGL application, that will run in a browser.
I want to allow this application to "listen" for messages, so it needs to be a server.
What could be the developing ...
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P2P + Authoritative server for Web based game, how to combine?
I'm working on an online Web RPG game (jRPG) with a map, that characters can go around.
Also, an important part, is that each player has his own world and each player can invite his friends to play on ...
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What makes the network coding for MUDs different from that of MMORPGs?
(I understand this is a bit broad, but I'm not a game developer, so I don't have a particular problem that I'm trying to solve.)
I can understand why the network coding for MMORPGs is so complicated ...
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Why don't my pieces shuffle on the client's end?
In my game there is a 'Shuffle()' function that both clients and the host can access that shuffles pieces around on a board:
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Game networking with physics different client and server languages
We are currently having only "turn based" multiplayer games in our party game lobby system. Now we considered to add realtime multiplayer games as well, for example golf in 3D. Our current ...
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Why nobody creates shared world games? [closed]
Vast majority of modern network games use "lobby" conception: when limited amount of players connect to a single lobby server and play the game in isolation from everyone else who is not in ...
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Syncing chest content in a host-client multiplayer setup
I'm modding a FPS game by adding a 2 player co-op multiplayer to an otherwise completely single player game.
One game instance acts as the host and I try to implement the synchronization of the ...
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Java Netty cannot connect to the server
I am creating a simple 2d multiplayer game supported by the Netty library. The server is located on my local computer. I have a problem: why are some clients unable to connect? I tested on several ...
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Informing clients of player actions in 2d platformer
I'm creating an online game (2d platformer) and I'm having some trouble understanding what to send clients. I'm sampling each player's input and sending it to the server after a set amount of time. ...
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Network racing game position interpolation jitters a lot
I'm making multiplayer racing game and I have problem with interpolating position..
Here's the sequence.
Server simulate the world and send vehicle transform packet through UDP socket every 33ms to ...
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Pathfinding over network and local avoidance
I'm trying to build a little MOBA game (max 10 players) in Unity and i'm really stuck with the pathfinding / local avoidance.
Here is what i'm doing when user click to move on the map:
Client send a ...
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GGPO / peer to peer winstate
How do games using GGPO (or maybe peer to peer in general) like Guilty Gear determine a winner? Just reporting a winner consensus might work with many independent players per lobby, but in e.g. a 1v1 ...
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How to implement rollback
From what I've read, there's several components which go into rollback netcode and requirements.
1: Your game logic update (input/state update) has to be able to run independently of your rendering (...
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Measuring RTT for my network game?
I'm building networked racing game right now. I'm using winsock with TCP/UDP socket and IOCP.
I'm having trouble with latency masking and I don't even know if my implementation is wrong.
So, I'm ...
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Do we need an ackowledgment packet in deterministic TCP multiplayer game?
I am trying to implement a deterministic game after having read 1500 archers on a 28.8. The simulation uses fixed-point math and the client only sends commands to the server which sends back the ...
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Latency handling methods in a fast-paced multiplayer game with moving objects
I am working on a real-time multiplayer soccer game.
Currently, on my game, I created an architecture like that:
Every client has a copy of the game state, also the server has it too.
Clients send ...
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Unity Multiplayer Sync Bools
I have a little problem with syncing booleans on my networking game.
I use the Mirror-Package for networking and use KCP for transport.
When the players basicly collide each other (using a sphere ...
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