node-gamedig/protocols/mafia2mp.js

const Core = require('./core');

class Mafia2Multiplayer extends Core {
    constructor() {
        super();
        this.encoding = 'latin1';
        this.header = 'M2MP';
        this.isMafia2Online = false;
    }

    async run(state) {
        const body = await this.udpSend(this.header,(buffer) => {
            const reader = this.reader(buffer);
            const header = reader.string(this.header.length);
            if (header !== this.header) return;
            return reader.rest();
        });

        const reader = this.reader(body);
        state.name = this.readString(reader);
        state.raw.numplayers = this.readString(reader);
        state.maxplayers = parseInt(this.readString(reader));
        state.raw.gamemode = this.readString(reader);
        state.password = !!reader.uint(1);
        state.gamePort = this.options.port - 1;

        while(!reader.done()) {
            const player = {};
            player.name = this.readString(reader);
            if(!player.name) break;
            if (this.isMafia2Online) {
                player.ping = parseInt(this.readString(reader));
            }
            state.players.push(player);
        }
    }

    readString(reader) {
        return reader.pascalString(1,-1);
    }
}

module.exports = Mafia2Multiplayer;