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.
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1answer
32 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 ...
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1answer
70 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
70 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 ...
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1answer
79 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 ...
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1answer
44 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 ...
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1answer
83 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
75 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 ...
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1answer
72 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 ...
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28 views
Networked physic + quadtree
I have some problem with understanding how to use quadtree to divide physic world (p2.js engine btw.) and synchronize this world with clients.
Here are some informations about my game:
Host & ...
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0answers
27 views
Sharing data between scaled game servers
I have a multiplayer game with a single huge map. The map is divided into areas. Each area is 50x50 piece of the map. All players can move between each of the areas. There are hundreds of said areas.
...
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66 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:
...
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0answers
20 views
Syncing animations across different objects
In my game I have the player object which is made up of separate objects to allow for part swapping. Each general part has it's own animator and the overal object has an animator. Let me explain, the ...
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2answers
81 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 ...
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0answers
175 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
69 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
194 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, ...
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0answers
56 views
Netplay - syncing world simulations. Proposal
My question is about synchronizing two world simulations.
Lets say we have world where time unit is "step"
How can be sure that each step tick happens in about same time in each of two users?
Or ...
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2answers
191 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 ...
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1answer
242 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
274 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 ...
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0answers
119 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
233 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 ...
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2answers
2k 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, ...
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1answer
198 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
195 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 ...
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0answers
456 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/...
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1answer
568 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 ...
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1answer
408 views
Parallelism in GPU's rasterization process
Based on this article I understood the base principle inside the Rasterization algorithm:
...
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1answer
215 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
41 views
What is a good idea for an offline synchronization mechanism?
I am building a game. 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 ...
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votes
2answers
493 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
578 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 ...
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0answers
52 views
Unity: Editor Window not Syncing
I have four scripts:
Engine has a list of MovementWaypoints.
EngineEditor simply displays a ...
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1answer
804 views
How to sync a LineRenderer in a multiplayer game?
After a lot of searching online, I have come here as a last resort for my problem.
The question says it all. How to sync a LineRenderer?
One answer I found was to use a ClientRpc. I tried it with no ...
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2answers
205 views
Get different result on different devices (same resolution) after setVelocity
I'm dying with physics , i've tried to use setVelocity however i got slightly different value from different devices.
I've tested on iPhone 5 (on simulator)
and ...
1
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1answer
117 views
How to prevent clients from stuttering while keeping the game in sync in multiplayer Pong?
I wrote Pong in multiplayer. The clients all run their own game, but I have an authoritative server which enforces its ball position onto the clients.
The game is in sync and playable, however, there ...
2
votes
2answers
151 views
How to confirm an actor location in a realtime multiplayer game at the exact same time on two devices?
I am trying to figure out how to make a game like Pong in multiplayer. I have two devices that run the same simulation. Now I want to make sure that each of them start at the exact same time and send ...
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votes
3answers
224 views
Calculate resources real-time. Sockets or not?
I'm currenly developing a game in Javascript. It's a Single Page Application so every change should be pulled from the server without page refresh. I'm currently wondering how I should handle the '...
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1answer
335 views
Syncing Sprites themselves over a Network
Ok, just found out I can't use [SyncVar] for a sprite gameobject. Furthermore that, [SyncVar] works only on simple values. My question is How would I go about syncing a Sprite over a network?
To ...
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1answer
1k views
Unity 5 Syncvar not working
I have a cube in my scene. I want to change its color and I wanna server and all players to see it in this color. I have attached script on the cube:
...
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2answers
158 views
UDP sending important data often - Should I use a reliable send or unreliable with resend?
I'm making a multiplayer RPG. My problem is that I send player data very often (100 ms), that contains:
Position (float x, y, z)
Radius (float angle)
Animation (int16_t id)
And because the package ...
-1
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1answer
3k views
How to sync animations of 2 different characters in Unity 3D?
I am working on an endless running 3d game. I have 2 characters. One of them is a small kid and another one is a security guard. Both characters and animations are exported as separate FBXs.
The ...
0
votes
1answer
624 views
Android: Synchronizing timers across multiple devices
Im writing a turn-based multiplayer game that implements a chess timer. When the current players turn starts, all devices start timing for the current player, however, as his turn proceeds, the timers ...
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0answers
86 views
Extrapolation - synchronize destination point on a second device while moving
First of all, I read all of the Valve and Gaffer articles but I still have no clue, how to achieve my goal.
I am creating a UDP multiplayer game with a lot of physics (knockbacks, attacks). Packets ...
2
votes
1answer
912 views
Unity 5.x Network Synchronization Concepts
Bear with me, It will be long read^^
I am working on the new Unity Networking system. I was using Photon and old (legacy) unity network API's before. But as it seems there are some good benefits of ...
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2answers
615 views
Syncing items between server and client
I'm doing this game of mine, and I want to add the items to it.
I'm already familiar with the basic concept of syncing data between server and client,
Usually using sync state, that's what i've done ...
1
vote
0answers
59 views
How to synchronize events to clients?
I need to keep the client updated on data that's rarely changed (like health) or when an event occurs (like when a player is attacked and should have "-10 hp" above him). Those 2 specific part should ...
2
votes
1answer
354 views
Client and server loops don't match up
I'm trying to build a small networked game using WebGL and NodeJS. I have a basic client and server setup and I'm at the point where I'm trying to implement dead reckoning to simulate what happens on ...
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2answers
187 views
2d mmo open world connection and reconnection
I am trying to create an 2d html5 open word (the sprite does not have any fancy flare, just shapes around) with only maximum of 10 player at once.
My question is how to create a seamless join for new ...
2
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0answers
73 views
How to detect when client state drifts from server state?
I'm obviously talking about an authoritative server to which client sends commands and gets state updates.
My question is when I get a position update and know how many milliseconds ago it was ...
