tagpro-packet-recorder.user.js

// ==UserScript==
// @name          TagPro Packet Recorder
// @version       0.0.1
// @author        Kera
// @namespace     https://github.com/keratagpro/tagpro-packet-recorder/
// @include       http://*.newcompte.fr:*
// ==/UserScript==

tagpro.ready(function() {
    recordAndSavePackets(1000, true);
});

function removeCallbacks(callbacks) {
	Object.keys(callbacks).forEach(k => {
		tagpro.rawSocket.removeListener(k, callbacks[k]);
	});
}

function saveData(data) {
	var url = 'data:text/json;charset=utf8,' + encodeURIComponent(data);
	window.open(url, '_blank');
}

function recordPackets(count, debug, callback) {
	if (debug) {
		console.log('Started recording packets.');
	}

	var packets = [];
	var callbacks = {};
	var keys = Object.keys(tagpro.rawSocket._callbacks);

	keys.forEach(k => {
		var func = (d) => {
			var packet = {
				type: k,
				data: d,
				time: performance.now()
			};

			// NOTE: Have to stringify, since the TagPro game modifies the packets and adds circular references.
			packets.push(JSON.stringify(packet));

			if (debug && packets.length % 100 === 0) {
				var progress = ((packets.length / count) * 100).toFixed(0);
				console.log(`recorded ${packets.length} packets (${progress}%).`);
			}

			if (packets.length === count || k === 'end') {
				removeCallbacks(callbacks);
				callback(packets);
			}
		};

		callbacks[`record-${k}`] = func;

		tagpro.rawSocket.on(k, func);
	});
}

function recordAndSavePackets(count, debug) {
	recordPackets(count, debug, function(packets) {
		saveData(packets.join('\n'));
	});
}