node-gamedig/protocols/gamespy1.js

const async = require('async');

class Gamespy1 extends require('./core') {
	constructor() {
		super();
		this.sessionId = 1;
		this.encoding = 'latin1';
		this.byteorder = 'be';
	}

	run(state) {
		async.series([
			(c) => {
				this.sendPacket('info', (data) => {
					state.raw = data;
					if('hostname' in state.raw) state.name = state.raw.hostname;
					if('mapname' in state.raw) state.map = state.raw.mapname;
					if(this.trueTest(state.raw.password)) state.password = true;
					if('maxplayers' in state.raw) state.maxplayers = parseInt(state.raw.maxplayers);
					c();
				});
			},
			(c) => {
				this.sendPacket('rules', (data) => {
					state.raw.rules = data;
					c();
				});
			},
			(c) => {
				this.sendPacket('players', (data) => {
					const players = {};
                    const teams = {};
					for(const ident of Object.keys(data)) {
                        const split = ident.split('_');
                        let key = split[0];
                        const id = split[1];
                        let value = data[ident];

						if(key === 'teamname') {
							teams[id] = value;
						} else {
							if(!(id in players)) players[id] = {};
							if(key === 'playername') key = 'name';
							else if(key === 'team') value = parseInt(value);
							else if(key === 'score' || key === 'ping' || key === 'deaths') value = parseInt(value);
							players[id][key] = value;
						}
					}
					
					state.raw.teams = teams;
					for(const id of Object.keys(players)) {
						state.players.push(players[id]);
                    }
					this.finish(state);
				});
			}
		]);

	}

	sendPacket(type,callback) {
		const queryId = '';
        const output = {};
		this.udpSend('\\'+type+'\\', (buffer) => {
            const reader = this.reader(buffer);
            const str = reader.string({length:buffer.length});
            const split = str.split('\\');
			split.shift();
            const data = {};
			while(split.length) {
                const key = split.shift();
                const value = split.shift() || '';
				data[key] = value;
			}
			if(!('queryid' in data)) return;
			if(queryId && data.queryid !== queryId) return;
			for(const i of Object.keys(data)) output[i] = data[i];
			if('final' in output) {
				delete output.final;
				delete output.queryid;
				callback(output);
				return true;
			}
		});
	}
}

module.exports = Gamespy1;