Questions tagged [synchronization]
A process of maintaining similar game state across players and/or servers, thus giving all players same info about current sutuation on playfield.
128
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14 views
Sync issues with replaying movement
I am creating a networked game and having issues with keeping positions synced between multiple clients.
Essentially what I have happening is one client's movement to replaying on another routed ...
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1answer
56 views
Why players who join late can't see other people data?
I want to show the name of the players above their head but I have a problem where people joining late doesn't get other players' name.
For example:
Player 1 joins to the server with the name Peter.
...
2
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0answers
28 views
Synch clocks between client and server in Java
We're developing a simple boggle game in Java for a college project (purely academic purposes, so we're trying to keep it simple).
Our application is composed by a client portion and a server portion. ...
5
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1answer
354 views
How does an FPS like Overwatch have client time run ahead of the server?
In watching the GDC talk about Overwatch netcode, it mentions that the client is always ahead of the server, that the "current tick" on the server is behind that of the client.
From their ...
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0answers
80 views
Client/Server state synchronization for RTS
How can I perform state synchronization using client/server networking in an RTS similar to Starcraft 2 and Planetary Annihilation?
I'm assuming the server has to do some sort of rewinding time to ...
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0answers
76 views
Synchronizing clients
I have a server-client setup where each client has a number of screens attached, and the screens together form the display. As such, the visuals displayed by each client needs to be roughly in sync. ...
3
votes
2answers
476 views
What is transmitted over the network during multiplayer first person shooter games?
In games like Half-Life 2, Team Fortress 2 etc, when you play against other players online, your local game communicates with a game server.
If you've built one of these games, what sort of ...
2
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0answers
20 views
Electing a host with WEBRTC
This is similar to Host Migration (P2P) with RTMFP and AS3
I have a webRTC chat room, initially used Twilio and switching to skyway, the situation is that I have a bunch of peers with data broadcast ...
3
votes
1answer
93 views
How can I standardize ping?
I hear pros playing Fortnite that have 20-50 ping complain that they cannot perform as well as pros with 0 ping due to wall taking, etc. It's easy to think that a 20ms ping difference is negligible ...
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0answers
302 views
How can I build an authoritative server to handle players actions taking into consideration scalability of solution
I've started with Unity3D to develop a multiplayer game similar to world of tanks, it's using authoritative server and I was able to sync movements between several clients. I'm using c# and on the ...
2
votes
0answers
564 views
How to sync entities in an ECS game?
I'm wondering how to engineer a client server sync of entities in a multiplayer game which is using an ECS.
When the server changes some values of the components of an entity, I thought the best ...
0
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1answer
60 views
Avoid players getting stuck by placing items in the same place
Let's assume a multiplayer game of two players. These two players have to place six elements at six different positions. The order or exact place does not matter. As the items are placed correctly, ...
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1answer
183 views
Multiplayer oriented game engine object (C++)
for a personal project i started making a 2d game engine in C++ that uses sfml. The idea is having base "game object" classes from which a game will inherit.
Right now i have:
Game_engine class ...
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1answer
92 views
How to control JavaFX's animations execution order when animations “queue” is being altered in run-time?
What is the proper way of handling synchronization between GUI animations' execution order and the user's dynamic input?
More specifically, I would like to know how to enforce some logical ...
0
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1answer
66 views
Synchronize points from UI and server
I am sorry in advance if it's not perfectly clear.
I would like to make a game with let's say the following map (in real it will be a 3D globe).
Now this map contain point, and each point is a place ...
1
vote
1answer
112 views
Is it always necessary to synchronize rendering in a game loop?
When writing a game loop from scratch in java for an android game applications, it is very common in many tutorials I have read that the keyword synchronized is used to synchronize update and ...
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0answers
34 views
Achieving smooth movement curves & correct collision detection with a google app realtime multiplayer game server
I'm an hobbist game developer. I'm trying to make a clone of a game like this: http://superhex.io/ to experiment with multiplayer online.
First of all I'm not sure if there is a better way to ...
1
vote
1answer
175 views
Keep world changes in sync in client/server architecture
Imagine having a big room (4000w x 4000h) which contains players and items (world objects). The room is spatially partitioned in a 10 x 10 grid for collision detection and changes in the viewport of ...
0
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0answers
120 views
Eager or lazy loading synchronization
Imagine joining a room with 100 (moving) players and a lot of items and being assigned a random position in the room (read: agar.io).
At the moment I'm eager loading the other players and items and ...
1
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1answer
180 views
Implementing game synchronization between clients and server
I'm creating a small online multiplayer game where I have multiple thin clients and an authoritative server. Both the client and the server have a fixed game loop.
Now I have a game entity with the ...
1
vote
1answer
78 views
Why is my client's body drifting even after using data from the server, and how do I fix it?
I am trying to use Box2d on nodejs server with libGDX client. What I am trying to apply is authoritative server model so clients are just sending input data to server, server is running simulation and ...
1
vote
1answer
186 views
NodeJS client gameloop running slightly faster than server gameloop
So I'm working on a real time multiplayer game in NodeJs (Client and Server). Both loops handle the same "physics" (movement at a constant rate) and both are running at 40hz or 40 times per second. I ...
0
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1answer
406 views
clock synchronization
Is there something I'm not seeing or there is a flow in this algorithm(which everyone is referring to)
http://www.mine-control.com/zack/timesync/timesync.html
Assumption 1: When I say a is ...
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2answers
98 views
Character appearance synchronization in open world multiplayer game
I am working on a multiplayer open world game where you can equip handhelds and armor pieces. In my architecture, there are clients and an authoritative server. Every equipable item is crafted by a ...
1
vote
1answer
180 views
Network limitation in multiplayer game
I have a multiplayer cooperative game (PVE) in where there can be up to 200 enemies at a time (somewhere around that) and I was wondering how devs generally synchronize these? I already have packets ...
0
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1answer
178 views
Sync a file across multiple devices
How can a file be synced across multiple devices? I am able to store the data locally using binary serialization, but the user should have the ability to access it on any device at any time.
Is this ...
0
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1answer
293 views
The state that is synced when a window is broken in a FPS game
In order to better understand how state syncing works in games, I wanted to pose a specific example. Say you are in a FPS game with multiple players and someone breaks a window in some building. ...
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0answers
142 views
Spawn network objects in generated map
In my game, the server generates a procedural map, after send generation seed to generate it on the client. The client generates exactly the same map. In the map, I need to synchronize objects with ...
1
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1answer
134 views
How can I synchronize state in my Asteroids game with many networked players?
Wondering how state synchronization works in games with lots of players like MMOs. It seems like a hard problem to solve and I am not aware if there are standard solutions. Specifically, synchronizing ...
0
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0answers
153 views
How to reduce server traffic for 100+ multiplayers game?
I'm working on fast-paced multiplayer game which has 100+ players in single session.
To sync entire game state to each player, server should send massive data if I did not any compression:
...
1
vote
2answers
153 views
How can I handle sharing storage units in multiplayer?
I have recently come across a certain problem in programming my MMORPG: the synchronization of shared storage units.
With shared storage unit I intend something like a "chest" that can be accessed ...
1
vote
0answers
331 views
Real-time MMO: how should authoritative server update client position
I'm trying to build a real-time MMO game. I'm using Phaser for FE and Node.js + socket.io for BE. I have read all the tutorials like http://www.gabrielgambetta.com/client-side-prediction-server-...
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0answers
105 views
Data synchronization between master and slave servers
I am looking for a way to synchronize data between master data server (connected to a database) and slave game servers.
The master server should make a decisions about which data should be ...
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0answers
305 views
How to properly separate render thread from logic thread?
I am not asking about parallelization of physics and so on stuff with parallel_for() like stuff.
I've managed to have separate rendering thread from logic thread, ...
2
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1answer
446 views
Should the server calculate the time of a player's input, or trust sent data?
I am curious about the details of lag compensation in games. I have read a lot of articles about it, for example:
Source Engine Multiplayer Networking
Fast-Paced Multiplayer - Gabriel Gambetta
How do ...
0
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2answers
428 views
Multiplayer Game - Node.js syncing other players' position
I'm creating a multiplayer platformer game with 4 players in multiple rooms. I've read a lot of articles and researched about client prediction and lag compensations. I think I can somehow manage to ...
1
vote
1answer
401 views
Do you really have to sync Physics over the network?
Let's say you want to create a 2D game where a character can shoot a bullet. You have the same code running on the Client and Server (JavaScript so it's exactly the same code).
If the client and the ...
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0answers
412 views
Help needed, following Unity multiplayer Health-Bar tutorial. Only working on Server Host instance of the game
was really hoping someone can be good enough to look over my code, I've been trying to fix it for several days. I followed the Unity tutorial which is fairly basic but the bit that confuses me (and ...
3
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0answers
128 views
AI Agent realistic leap to a player in a MMO
In the last month I have been struggling with an issue, movement synchronization of a leap of an AI agent in a MMO. I know some theory and basic movement was not a problem with interpolation and stuff,...
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0answers
307 views
[SyncVar]s in Unity with client authority
I'm making an networked RTS in Unity, and I have a problem with syncing a boolean on a non-player object. I create the object (which is a boat) using ...
2
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2answers
6k views
Unity - Manually sync location of players from server to client
I am new to Unity networking. I've set up my scene with NetworkManager and the Player prefab having NetworkIdentity. I originally had my players set up to sync with a NetworkTransform. This worked, ...
0
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1answer
297 views
MMO Player Position Update [duplicate]
I have been looking at the development of MMO games for a while and have got stuck up on one thing. Player Movement. If we have an area with 10 players, each player needs to be able to see the ...
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0answers
269 views
How can I instantiate and sync a LineRenderer in multiplayer network?
I am trying to make a laser that will be visible to all clients in a multiplayer networked game on Unity.
I've tried using a Command Attribute but that hasn't worked. I also found some ideas to use ...
0
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0answers
742 views
Do I need to make network game fully deterministic to achieve a non-exploitable MOBA/RTS?
First of all - I know some networking concepts and I coded couple games with GDX/Kryonet/...
0
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1answer
1k views
Socketio, nodejs. syncing movement with rigidbodies over the network - unity
I am building a 2d top-down mmo. very lightweight.
I have a master client that determines everythings position, and actions and send this information to all other clients.
Now I have made a great ...
8
votes
1answer
1k views
Parallelism in GPU's rasterization process
Based on this article I understood the base principle inside the Rasterization algorithm:
...
1
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1answer
593 views
Should I sync animations from the server to the client or let the client play its own animations?
For example, if the user presses the "Fire" button which leads to the player character doing some kind of animation, should the client evaluate itself if it can play the animation or wait for a ...
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2answers
68 views
How to start the game at the same time across two phones?
I am trying to synchronize two devices so that they can start the game at the same time.
The mechanism that I've thought about is that I would use the phones' time and set the intervals at, for ...
3
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2answers
822 views
What to replicate in a PvP online action game?
We're developing a 2D PvP online action game. You can think of it like Super Smash Bros. We have a function call tree for characters like below:
...
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3answers
1k views
Synchronizing over UDP
I have two apps communicating over UDP. One of the apps is a remote control and the other is a robot.
When the robot has some new data, for example a new sensor ...
