Unity & NodeJS backend server.

Just got it. I'm new to Unity (and to this community, hello ), but im developer since 5 years. Yesterday i did some research, if it were possible to have a unity client, and a nodeJS server, i haven't found any guides or semething. After many hours of researching, reading, trying, viewing videos, and ma' own, i've got it.

Little chat server written in nodeJS. Now i gonna develop a script to draw all players... I think i gonna share my work, but it's really easy, all goes through 'websockets', all you need is websocket for sharp, and for nodeJS.

- https://github.com/sta/websocket-sharp
- https://github.com/websockets/ws

Maybe nodejs is not the most efficient way, but many people like it and it's very easy and can load lot's of traffic.



PD: im new to forum

 

Hi,

Sounds interesting!

How did you connect them tho?

At the moment I have this set up as a simple Node Websocket server:

Code (CSharp):

1. var WebSocketServer = require('ws').Server
2.     , wss = new WebSocketServer({ port: 9092 });
3.    
4. console.log('Server running on port 9092.');
5.    
6. wss.on('connection', function connection(ws){
7.     console.log('Client connected');
8.     ws.on('message', function incoming(message){
9.         console.log('Received: %s', message);
10.     });
11.    
12.     ws.send('blaat');
13. });

And this in my Unity project:

Code (CSharp):

1. using UnityEngine;
2. using System.Collections;
3. using WebSocketSharp;
4.  
5. public class Node : MonoBehaviour {
6.  
7.     void Start () {
8.         using (var ws = new WebSocket ("ws://127.0.0.1:9092")) {
9.             ws.OnMessage += (sender, e) =>
10.                 Debug.Log (e.Data);
11.            
12.             ws.Connect ();
13.             ws.Send ("message");
14.         }
15.     }
16.  
17. }
18.  

According to the examples on the repositories you linked. But it doesn't do anything.

Thanks!

 

I would highly recommend using a proper TCP implementation instead of websockets(Not saying websockets aren't built on the TCP protocol). However you can achieve everything you'd want using a TcpClient and it's much easier to manage. Considering javascript doesn't understand binary formats. I'd recommend something like ``Socket.io`` to make your experience really easy.

 

Thanks!

Is there a way to use socket.io in Unity with C#?

 

Absolutely, however you'll have to handle the special events yourself. Socket.io is just built ontop of the TCP Layer, but NodeJS has it's own TCP server that you can run. (Which I would personally use, as it's no extra hassle for a little simplicity.)

To create a TCP server in NodeJS you need to make use of "net"

Code (csharp):

1.  
2. net = require('net');
3. net.createServer(function (socket) {
4.  
5. }).listen(5055);
6. console.log("Server is listening on port 5055");
7.  

See: https://gist.github.com/creationix/707146

-- The C# TcpClient can connect to this by default.

NOTE: Keep in mind that NodeJS (JavaScript) does not understand Binary values, so you'll have to transmit your data in a JSONText format.

 

Thank you very much! Will try it out!

 

You can use Simple Web Sockets for Unity WebGL

See this great course: Unity Multiplayer Game Development with Node | Pluralsight

 

I've used UnityWebRequest to get the data from my NodeJS-Server. Works fine for me.