blackhack-utils

Utility functions for blackhack

Questo script non dovrebbe essere installato direttamente. È una libreria per altri script da includere con la chiave // @require https://update.greasyfork.org/scripts/571913/1787411/blackhack-utils.js

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// ==UserScript==
// @name           blackhack-utils
// @namespace      brofist.io 1st-cheat (FOR ALL MODES)
// @version        1.5
// @description    Utility functions for blackhack
// @author         CiNoP
// @license        GPL-3.0-only
// @grant          none
// ==/UserScript==

(function () {
    'use strict';

    const DEBUG = true;
    const dbg = (...a) => { if (DEBUG) console.log('%c[BH]', 'color:#0af;font-weight:bold', ...a); };
    const wrn = (...a) => console.warn('[BH]', ...a);

    dbg('========== blackhack-utils v1.5 ==========');

    const BH = window.BH = window.BH || {};
    BH.utilsVer = 1.5;

    BH.clamp = (v, min, max) => Math.max(min, Math.min(max, v));
    BH.round3 = v => Math.round(v * 1000) / 1000;

    const _c = document.createElement('canvas'), _x = _c.getContext('2d');
    BH.measureTextWidth = (fs, t) => {
        _x.font = fs + 'px Arial';
        return Math.round(_x.measureText(t).width);
    };

    BH.STORAGE_KEY = 'blackhack_settings';
    BH.DEFAULTS = {
        mult: 3, gravScale: 2, jumpHeight: 8,
        mass: 1, damping: 0.9,
        alphaCollision: 1, alphaPoison: 1, alphaFunctional: 1
    };

    BH.saveSettings = () => {
        try {
            const v = window.hack.vars;
            localStorage.setItem(BH.STORAGE_KEY, JSON.stringify({
                mult: v.mult.uiValue, gravScale: v.gravNoclipGravScale,
                jumpHeight: v.jumpHeight, mass: v.playerMass, damping: v.playerDamping,
                alphaCollision: v.layoutAlpha.collision, alphaPoison: v.layoutAlpha.poison,
                alphaFunctional: v.layoutAlpha.functional
            }));
        } catch (_) {}
    };

    BH.loadSettings = () => {
        try {
            const raw = localStorage.getItem(BH.STORAGE_KEY);
            if (raw) return { ...BH.DEFAULTS, ...JSON.parse(raw) };
        } catch (_) {}
        return { ...BH.DEFAULTS };
    };

    /* ═══════════════════ LZMA ═══════════════════
     *
     * lzma_worker-min.js кеширует setTimeout в локальную переменную
     * при первом выполнении:  var _st = setTimeout;
     *
     * Поэтому нужно подменить window.setTimeout ДО загрузки кода,
     * чтобы библиотека закешировала наш прокси, а не оригинал.
     *
     * Прокси работает в двух режимах:
     *   _syncQ === null  → passthrough (прозрачно, как настоящий setTimeout)
     *   _syncQ === []    → sync mode (колбэки складываются в очередь)
     *
     * ═══════════════════════════════════════════ */

    const CDN = 'https://cdn.jsdelivr.net/npm/[email protected]/src/lzma_worker-min.js';
    const _realST = window.setTimeout;
    let _syncQ = null;

    // Прокси — библиотека закеширует ЭТУ функцию
    const _stProxy = function () {
        if (_syncQ !== null && typeof arguments[0] === 'function') {
            _syncQ.push(arguments[0]);
            return -1;
        }
        return _realST.apply(window, arguments);
    };

    /* ─── Шаг 1: Fetch ─── */
    dbg('Step 1: Fetching LZMA…');
    let lzmaSrc = null;
    try {
        const xhr = new XMLHttpRequest();
        xhr.open('GET', CDN, false);
        xhr.send();
        dbg('  XHR status:', xhr.status, '| length:', xhr.responseText?.length);
        if (xhr.status === 200 && xhr.responseText) lzmaSrc = xhr.responseText;
    } catch (e) { wrn('  XHR error:', e.message); }

    if (!lzmaSrc) {
        wrn('❌ LZMA source not available');
    } else {
        /* ─── Шаг 2: Прокси ПЕРЕД инъекцией ─── */
        dbg('Step 2: Proxy + inject');
        const savedOM = window.onmessage;

        // ★ КЛЮЧЕВОЙ МОМЕНТ: ставим прокси ДО выполнения кода библиотеки
        window.setTimeout = _stProxy;
        dbg('  setTimeout proxy installed BEFORE injection');

        let injected = false;
        try {
            const el = document.createElement('script');
            el.textContent = lzmaSrc;
            (document.head || document.documentElement).appendChild(el);
            el.remove();
            injected = true;
            dbg('  ✓ inline <script>');
        } catch (e1) {
            dbg('  inline <script> fail:', e1.message);
            try { (0, eval)(lzmaSrc); injected = true; dbg('  ✓ eval'); }
            catch (e2) { dbg('  eval fail:', e2.message); }
        }

        window.onmessage = savedOM;
        // НЕ восстанавливаем setTimeout — прокси остаётся!
        // Он прозрачен когда _syncQ === null

        if (!injected) {
            window.setTimeout = _realST;
            wrn('❌ LZMA injection failed');
        } else {
            /* ─── Шаг 3: Найти API ─── */
            dbg('Step 3: Finding API');
            dbg('  window.LZMA:', window.LZMA);
            dbg('  window.LZMA_WORKER:', window.LZMA_WORKER);

            let api = null;
            if (window.LZMA_WORKER && typeof window.LZMA_WORKER.compress === 'function') {
                api = window.LZMA_WORKER;
                dbg('  → LZMA_WORKER');
            } else if (window.LZMA && window.LZMA.LZMA_WORKER &&
                       typeof window.LZMA.LZMA_WORKER.compress === 'function') {
                api = window.LZMA.LZMA_WORKER;
                dbg('  → LZMA.LZMA_WORKER');
            } else if (window.LZMA && typeof window.LZMA.compress === 'function') {
                api = window.LZMA;
                dbg('  → LZMA direct');
            }

            if (!api) {
                wrn('❌ LZMA API not found');
            } else {
                /* ─── Шаг 4: Sync bridge ─── */
                dbg('Step 4: Sync bridge');
                const cC = api.compress.bind(api);
                const cD = api.decompress.bind(api);

                function syncCall(fn, args) {
                    _syncQ = [];          // ← sync mode ON
                    let result = null, error = null;

                    args.push(function (res, err) {
                        if (err) error = err; else result = res;
                    });
                    fn.apply(null, args);

                    let s = 0;
                    while (_syncQ.length && s++ < 200000) _syncQ.shift()();

                    _syncQ = null;        // ← sync mode OFF
                    if (DEBUG) dbg('  syncCall: drained', s, 'items');
                    if (error) throw new Error(String(error));
                    return result;
                }

                window.LZMA = {
                    compress:   (input, level) => syncCall(cC, [input, level]),
                    decompress: (bytes)        => syncCall(cD, [bytes])
                };
                dbg('  ✓ window.LZMA ready');

                /* ─── Шаг 5: Тест ─── */
                dbg('Step 5: Self-test');
                try {
                    const comp = window.LZMA.compress('blackhack', 1);
                    dbg('  compressed:', comp ? (comp.length + ' bytes') : '❌ NULL');
                    if (comp) {
                        const back = window.LZMA.decompress(comp);
                        const ok = back === 'blackhack';
                        dbg('  decompressed:', JSON.stringify(back));
                        dbg(ok ? '  ✅ PASS' : '  ❌ FAIL');
                    }
                } catch (e) { dbg('  ❌', e.message); }
            }
        }
    }

    dbg('========== init complete ==========');
})();