The client-server model is a centralized computing model where one node (the server) performs some service for other nodes (the clients).

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4
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2answers
168 views

How can I implement a game locator or proxy server?

I have a turn-based strategy game which already has a multiplayer server/client layer that works fine on local network (where one server is set up and players connect to it). I would like to extend ...
7
votes
3answers
4k views

Tips for communication between JS browser game and node.js server? [closed]

I am tinkering around with some simple Canvas based cave flyer game and I would like to make it multiplayer eventually. The plan is to use Node.js on the server side. The data sent over would ...
12
votes
3answers
15k views

Can I do server side programming with unity? [closed]

Another thought to my last question. If i were to do a client/server game with unity3d would i be able to do serverside programming with unity? if not can i use C# .net? if not then is there some sort ...
0
votes
1answer
570 views

Node.js Lockstep Multiplayer Architecture

Background I'm using the lockstep model for a multiplayer Node.js/Socket.IO game in a client-server architecture. User input (mouse or keypress) is parsed into commands like 'attack' and 'move' on ...
-1
votes
1answer
226 views

How to show other characters in online 2D rpg

I have Player 1 and Player 2 I am using Json to send and retrieve player data between the client and the server, but when another player logs in, and is in the same map, how would I send that data to ...
0
votes
2answers
301 views

How to make a TCP Client Server in java over multiple Networks

So I am trying to write server code for my game, and I am kinda running in a wall. I have seen oracles example for a server and client, but how do I allow it to connect to computers outside my ...
0
votes
1answer
132 views

how to set up a contract between a Client and Server in C#

I am trying to make a turn based game, so first should I use UDP or TCP for the client server set up and why? Second how do I implement it? I have seen a lot of code that just sends byte strings to ...
0
votes
2answers
290 views

What type of server should I use?

I am planning on making a game in c#. It will be a turn based, space exploration game. I want the turns of the different players to be able to happen at the same time though. I have been researching ...
1
vote
1answer
416 views

Client side prediction on FPS game

I've recently attempted to develop a simple client prediction for an FPS based on Gaffer on Games famous blog (http://gafferongames.com/game-physics/networked-physics/). Now I've gotten to the point ...
9
votes
3answers
3k views

Interpolating positions in a multiplayer game

In order to save bandwidth in my multiplayer game, I do not update every object every server tick, instead each object has an updateRate which tells the game that this object is expected to be updated ...
2
votes
2answers
329 views

Adobe Air turn based multiplayer Game, sockets vs http bandwidth

I am developing an Adobe Air multiplayer game for iPad. It is turn based and not realtime. It is like checkers game. I want to use a client server model. I have found 2 options to connect to server so ...
2
votes
2answers
341 views

Use client as server in client/server architecture

Let me clarify what i mean by that. Let's say i want to create a multiplayer game which uses physics (box2d). If I would let the server handle all the physics I would end up with a very overwhelmed ...
1
vote
0answers
594 views

How to implement the server-side game loop?

The server needs to handle the physics, because all the movement will be handled by it. So for that I need a game loop. The thing is that the server doesn't have the render part, it's just a console. ...
7
votes
2answers
1k views

Turn-based Client-Server Card Game - Unicast (TCP) or Multicast (UDP)

I am currently planning to make a card game project where the clients will communicate with the server in a turn-based and synchronous manner using messages sent over sockets. The problem I have is ...
6
votes
2answers
3k views

MMORPG server-side java architecture

I am currently making a MMORPG game, which is turn-based. The client is supposed to run on Android. Now, my friend is doing the graphics, and I have been doing the game classes (player, weaponry, ...
17
votes
6answers
1k views

What options do I have for game hosting

DISCLAIMER: I know this question starts to leave development island but it is very game development related and still think this is the best place. I see many free MMOs/online desktop client games ...
1
vote
4answers
211 views

Protecting the integrity of a game state while minimizing amount of data sent

I'm developing a multiplayer game in PHP/jQuery, and naturally have to be wary of any sort of data coming from the client. At present, I have tables of data representing the map (2D roguelike), ...
2
votes
1answer
250 views

How are UDP packets verified as authentic? [closed]

Hey I'm writing a game and have the backend written using a sometimes-reliable UDP scheme. I want to verify that inbound packets are actually originating from the player specified in the packets. My ...
-1
votes
2answers
252 views

Start timer in two clients the same time

I want to create a client/server turned-based game where each player will have 5 seconds in order to play. If extends this time will be other player's turn to play. In order to do this, I have created ...
3
votes
3answers
436 views

How can multiple clients be out of sync if they use the same RNG seed?

I have been working on a client-server architecture to enable LAN play for my open source game, Aigilas. In its current state, players stay synced in all running instances of the game but enemies and ...
11
votes
2answers
2k views

Is this the right architecture for our MMORPG mobile game?

These days I am trying to design architecture of a new MMORPG mobile game for my company. This game is similar to Mafia Wars, iMobsters, or RISK. Basic idea is to prepare an army to battle your ...
2
votes
2answers
229 views

Client-side physics simulation

I am trying to create a very simple client-server based physics game, using box2d library. A simple football game. Obviously, the server runs only the box2d world. My question is: is it correct to ...
1
vote
2answers
345 views

Implementing Online Leaderboards for indie windows PC Game

I've just finished my game and I'd like to add some ranking functionality to it. I have a mySQL database running on my website and want to be able to insert and retrieve data from it. My knowledge in ...
2
votes
2answers
379 views

Lockstep Game Loop

I have an XNA game using a basic lockstep update loop. The client sends all commands to the server, and updates only if it has received the next turn's commands from the server. When does a turn end? ...
0
votes
1answer
121 views

The game-server model to handle user actions

I'm starting to work on a mobile game that will have a server-side part (to handle user's interactions between them) and, of course, the client (game itself) part. It's not meant to be a browser game ...
5
votes
3answers
320 views

How to make sure user is running the newest version of mmo client?

In typical mmorpg game, you have a launcher and a client. You first run the launcher to update the client, then you run the client. In every mmo I tried if you run a client without updating first (if ...
4
votes
3answers
440 views

How do I allow a player to build a dedicated server, but prevent them from cheating?

Instead of maintaining a central server, many games allow players to build their own server, like Minecraft. But if you give them the server-side program, how could you prevent them from cheating? I ...
1
vote
2answers
526 views

PHP and Javascript/HTML5 Collaboration [closed]

I've recently been working on a fairly complicated game. I've stored information with local storage, but that allows the player to edit it, and does not transfer from computer to computer. The two ...
4
votes
1answer
358 views

How to define a proper protocol for a turn-based combat system?

I'm working on the server side of a turn-based strategy game. The game has a really complex combat system, like: When you are hit, you summon a phoenix to attack the enemy that deals X damage, and ...
4
votes
2answers
633 views

A simple example of movement prediction

I've seen lots of examples of theory about the reason for client-side prediction, but I'm having a hard time converting it into code. I was wondering if someone knows of some specific examples that ...
3
votes
6answers
542 views

Should Client->Server/Server->Client packets be separate?

When working on network packet structure for games, what is more efficient (in terms of code structure) for packet reading for client/server? Currently, Our packet structure is to send the packet ID ...
3
votes
2answers
592 views

2D destructable terrain with collisions in MMO

Task What I want is to create destructable terrain (like in Worms) and collisions with this terrain (with calculated normals) that will be fast enough to work on server machine. Basically lets say ...
1
vote
1answer
453 views

Do I need to create my own or use a commercial server for the features and matchmaking options I want my game to support? [closed]

So I'm developing an indie turn-based game for iOS and, in coding up a Game Center matchmaking class, I'm starting to question whether Game Center is even the best choice for what I want this game to ...
3
votes
1answer
278 views

How to properly do weapon cool-down reload timer in multi-player laggy environment?

I want to handle weapon cool-down timers in a fair and predictable way on both client on server. Situation: Multiple clients connected to server, which is doing hit detection / physics Clients ...
2
votes
1answer
65 views

extrapolating object state based on updates

I have a networked multi-user collaborative application. To maintain a consistent virtual world, I send updates for objects from a master peer to a guest peer. The update state contains x,y,z ...
4
votes
3answers
6k views

Server-side Architecture for Online Game

basically I have a game client that has communicate with a server for almost every action it takes, the game is in Java (using LWJGL) and right now I will start making the server. The base of the ...
1
vote
2answers
1k views

Networking Client Server Packet logic (How they communicate)

I want to know what is the logic behind server client communication through packets for a real time game. for example the server sends x packets then the client receives x packets and processes them.. ...
2
votes
1answer
198 views

Send less Server Data with “AFK”

I am working on a 2D (Realtime) MultiPlayer Game. With Construct2 and a Socket.IO JavaScript Server. Right now the code does not include the Array for each Player. var io = ...
2
votes
3answers
273 views

General directions on developing a server side control system for JS/Canvas Action RPG

Well, yesterday I asked on anti-cheat JS, and confirmed what I kind of already knew that it's just not possible. Now I wanna measure roughly how hard it is to implement a server side checking that is ...
4
votes
2answers
427 views

game multiplayer service development

I'm currently working on a multiplayer game. I've looked at a number of multiplayer services(player.io, playphone, gamespy, and others) but nothing really hits the mark. They are missing features, ...
4
votes
2answers
758 views

How do client-server cooperation based games like Diablo 3 work?

Diablo 3 cooperates with Blizzard servers even during single player games. In fact, Blizzard has had problems with the games "melting their servers." I would like to ask: How do the client and the ...
-6
votes
1answer
577 views

World of Warcraft like C++/C# server (highload) [closed]

I know it is very big topic and maybe my question is very beaten, but I'm interesting of basics how to write highload server for UDP/TCP client-server communications in MMO-like game on C++/C#? I mean ...
1
vote
1answer
174 views

In a client server first person shooter how does the server keep track of each player's hit boxes?

Do all the clients send a transformation matrix for each of the hit boxes which make up the character?
8
votes
4answers
267 views

Is there any way to verify the GPS location data received from client?

The answer to this question may be "NO" but it's quite important so I think I might as well ask. This should be a problem for all client-server location-aware games where player locations in the ...
7
votes
3answers
4k views

Javascript and PHP for real-time multiplayer?

I'm wondering if combining Javascript clientside with PHP/mysql serverside is a good idea for HTML5 real-time multiplayer (small scale) browser games? My technical knowledge is very limited, and even ...
1
vote
1answer
344 views

Multiplayer (Database, Users,etc) for game

I'm am looking to add multiplayer into my game (2D Platformer in XNA C#) My worlds are quite large (Up to 30 Million tiles max, Average 20 million maybe. 2000x10000). You could say the game is quite ...
1
vote
5answers
2k views

Is it possible to use 3G internet for a TCP/IP game server?

I'm working on a turned based multiplayer android game with a friend. I started working on the game server and client using socket programming. I found a few tutorials on how to implement a basic chat ...
13
votes
3answers
1k views

How do I efficiently code both the client and server at the same time?

I'm coding my game using a client-server model. When playing on singleplayer, the game starts a local server, and interacts with it just like a remote server (multiplayer). I have done this to avoid ...
1
vote
1answer
552 views

How do I go from a simple html5 tic tac toe game to an online 2 player game?

I've been working on an online 2 player Tic Tac Toe solution for blackberries. both old and new. And so far I have html5 code that has a 3 x 3 layout that switches between x and o for the game ...
3
votes
1answer
235 views

How many UDP ports for an MMOFPS

I'm designing an MMOFPS. I'm not sure whether to use one UDP port for all clients or one UDP port per client. Or is there another alternative? Currently UDP is only being used for position data ...