GoWorld
Scalable Distributed Game Server Engine with Hot Reload in Golang
中文资料
游戏服务端开源引擎GoWorld教程
1.安装和运行
2.Unity示例双端联调
3.手把手写一个聊天室
4.多个频道的聊天室
5.登录注册和存储
6.移动同步和AOI
7.源码解析之启动流程和热更新
8.码解析之gate
9.源码解析之dispatcher
10.源码解析之entity
欢迎加入Go服务端开发交流群：662182346
Features
- Spaces & Entities: manage multiple spaces and entities with AOI support
- Distributed: increase server capacity by using more machines
- Hot-Swappable: update game logic by restarting server process
- Multiple Communication Protocols: supports TCP, KCP and WebSocket
- Traffic Compression & Encryption: traffic between clients and servers can be compressed and encrypted
Architecture
Introduction
GoWorld server adopts an entity framework, in which entities represent all players, monsters, NPCs.
Entities in the same space can visit each other directly by calling methods or access attributes.
Entities in different spaces can call each over using RPC.
A GoWorld server consists of one dispatcher, one or more games and one or more gates.
The gates are responsible for handling client connections and receive/send packets from/to clients.
The games manages all entities and runs all game logic.
The dispatcher is responsible for redirecting packets among games and between games and gates.
The game processes are hot-swappable.
We can swap a game by sending SIGHUP to the process and restart the process with -restore parameter to bring game
back to work but with the latest executable image. This feature enables updating server-side logic or fixing server bugs
transparently without significant interference of online players.
Installing GoWorld
GoWorld requries Go 1.11+ to install.
go get github.com/xiaonanln/goworld/cmd/...
Manage GoWorld Servers
Use command goworld to build, start, stop and reload game servers.
Build Example Chatroom Server:
$ goworld build examples/chatroom_demo
Start Example Chatroom Server: (dispatcher -> game -> gate)
$ goworld start examples/chatroom_demo
Stop Game Server (gate -> game -> dispatcher):
$ goworld stop examples/chatroom_demo
Reload Game Servers:
$ goworld reload examples/chatroom_demo
Reload will reboot game processes with the current executable while preserving all game server states.
However, it does not work on Windows.
List Server Processes:
$ goworld status examples/chatroom_demo
> 1 dispatcher running, 1/1 gates running, 1/1 games (examples/chatroom_demo) running
> 2763 dispatcher /home/ubuntu/go/src/github.com/xiaonanln/goworld/components/dispatcher/dispatcher -dispid 1
> 2770 chatroom_demo /home/ubuntu/go/src/github.com/xiaonanln/goworld/examples/chatroom_demo/chatroom_demo -gid 1
> 2779 gate /home/ubuntu/go/src/github.com/xiaonanln/goworld/components/gate/gate -gid 1
Demos
Chatroom Demo
The chatroom demo is a simple implementation of chatroom server and client. It illustrates how
GoWorld can also be used for games which don't divide players by spaces.
The chatroom demo provides following features:
- register & login
- send chat message
- switch chatrooms
Build Server:
goworld build examples/chatroom_demo
Run Server:
goworld start examples/chatroom_demo
Chatroom Demo Client:
Chatroom demo client implements the client-server protocol in Javascript.
The client for chatroom demo is hosted at github.com/xiaonanln/goworld-chatroom-demo-client.
The project was created and built in Cocos Creater 1.5. A running server and client demo can also be found at http://goworldgs.com/chatclient/.
Unity Demo
Unity Demo is a simple multiple player monster shooting game to show how spaces and entities of GoWorld
can be used to create multiple player online games.
- register & login
- move players in space
- summon monsters
- player shoot monsters
- monsters attack players
Developing features:
- Hit effects
- Players migrate among multiple spaces
- Server side map navigation
Build Server:
goworld build examples/unity_demo
Run Server:
goworld start examples/unity_demo
Unity Demo Client:
Unity demo client implements the client-server protocol in C#.
The client for unity demo is hosted at https://github.com/xiaonanln/goworld-unity-demo.
The project was created and built in Unity 2017.1.
You can try the demo by downloading GoWorldUnityDemo.zip.
The demo connects to a goworld server on Huawei Cloud instance.