Update Files

Kha/Tools/khamake/Data/node/server.js

@@ -0,0 +1,71 @@
+const port = 6789;
+const playersPerSession = 2;
+
+const child_process = require('child_process');
+const fs = require('fs');
+const path = require('path');
+
+if (!fs.existsSync('node_modules')) {
+	console.log('Please run npm install.')
+	process.exit(1);
+}
+
+const express = require('express');
+app = express();
+require('express-ws')(app);
+
+if (!fs.existsSync(path.join('..', 'html5'))) {
+	console.log('Please compile for html5 before running the server.');
+	process.exit(1);
+}
+
+app.use('/', express.static('../html5'));
+
+app.use((err, req, res, next) => {
+	console.error(err.stack);
+});
+
+class Session {
+	constructor() {
+		this.clients = [];
+		this.instance = child_process.fork('./kha.js');
+		this.instance.on('message', (message) => {
+			this.clients[message.id].send(Buffer.from(message.data));
+		});
+	}
+}
+
+let sessions = [];
+let pendingSession = new Session();
+
+app.ws('/', (socket, req) => {
+	console.log('Client connected.');
+
+	socket.session = pendingSession;
+	socket.id = socket.session.clients.length;
+	socket.session.clients.push(socket);
+	socket.session.instance.send({message: 'connect', id: socket.id});
+	
+	socket.on('message', function (message) {
+		socket.session.instance.send({message: 'message', data: message, id: socket.id});
+	});
+	
+	socket.onclose = () => {
+		console.log('Removing client ' + socket.id + '.');
+		socket.session.instance.send({message: 'disconnect', id: socket.id});
+		socket.session.clients.remove(socket);
+		if (socket.session.clients.length === 0) {
+			socket.session.instance.kill();
+			sessions.remove(socket.session);
+		}
+	};
+	
+	if (pendingSession.clients.length === playersPerSession) {
+		console.log('Starting session.');
+		sessions.push(pendingSession);
+		pendingSession = new Session();
+	}
+});
+
+console.log('Starting server at ' + port + '.');
+app.listen(port);