unibutton/index.js

import express from "express";
import expressW from "express-ws";
import Game from "./game.js";
import NPC from "./common/npc.js";
import Player from "./common/player.js";

var app = express();
expressW(app);

var game = new Game();

game.init();

app.use('/crypto.js', express.static('./common/crypto.js'));
app.use('/js', express.static('./common'));
app.use(express.static('./static'));

app.ws('/', function (ws, req) {
    game.ws.push(ws);
    let player = new Player();
    let playerI = game.entities.length;
    game.entities[playerI] = player;

    ws.active = true;
    ws.ent = player;

    // This will only work under NGINX.
    console.log(`A player ${player.you} joined under IP ${req.headers["x-real-ip"]}`)

    ws.on('message', function message(msg) {
        let data = {};
        try {
            data = JSON.parse(msg);
        } catch (err) {
            console.log(err);
            data = [];
        }

        let newEnt = game.entities[playerI];

        let {you} = newEnt;

        let props = player.legalProps;

        for (let i in props) {
            newEnt[props[i]] = data[i];
        }

        let you2 = newEnt.you;

        if (you != you2) {
            console.log(`A player ${you} now identifies as ${you2}`);
        }
    })

    ws.on('close', function () {
        console.log(`A player ${game.entities[playerI].you} left`);
        ws.active = false;
        player.health = -1;
    })
});

app.listen(process.env.PORT || 3069);