☰

HackTimer V1

Uses a Web Worker to ensure high-precision timing for setInterval and setTimeout.

Fra og med 18.10.2025. Se den nyeste version.

Dette script bør ikke installeres direkte. Det er et bibliotek, som andre scripts kan inkludere med metadirektivet // @require https://update.greasyfork.org/scripts/552983/1679774/HackTimer%20V1.js 

// ==UserScript==
// @license      MIT
// @name         HackTimer V1
// @namespace    HackTimer
// @version      1.0.3.3
// @description  Uses a Web Worker to ensure high-precision timing for setInterval and setTimeout.
// @grant        none
// ==/UserScript==

(function (workerScript) {
    if (!/MSIE 10/i.test(navigator.userAgent)) {
        try {
            const workerCode = `
class TimerWorker {
    constructor() {
        this.timers = new Map();
        this.setupMessageHandler();
    }

    setupMessageHandler() {
        self.addEventListener('message', (event) => {
            const { name, fakeId, time } = event.data;
            this.handleMessage(name, fakeId, time);
        });
    }

    handleMessage(name, fakeId, time) {
        switch (name) {
            case 'setInterval':
                this.setInterval(fakeId, time);
                break;
            case 'clearInterval':
                this.clearInterval(fakeId);
                break;
            case 'setTimeout':
                this.setTimeout(fakeId, time);
                break;
            case 'clearTimeout':
                this.clearTimeout(fakeId);
                break;
        }
    }

    setInterval(fakeId, interval) {
        const timerId = setInterval(() => {
            postMessage({ fakeId });
        }, interval);
        this.timers.set(fakeId, { type: 'interval', id: timerId });
    }

    clearInterval(fakeId) {
        const timer = this.timers.get(fakeId);
        if (timer && timer.type === 'interval') {
            clearInterval(timer.id);
            this.timers.delete(fakeId);
        }
    }

    setTimeout(fakeId, timeout) {
        const timerId = setTimeout(() => {
            postMessage({ fakeId });
            this.timers.delete(fakeId);
        }, timeout);
        this.timers.set(fakeId, { type: 'timeout', id: timerId });
    }

    clearTimeout(fakeId) {
        const timer = this.timers.get(fakeId);
        if (timer && timer.type === 'timeout') {
            clearTimeout(timer.id);
            this.timers.delete(fakeId);
        }
    }
}

new TimerWorker();
`;
            const blob = new Blob([workerCode], { type: 'application/javascript' });
            workerScript = URL.createObjectURL(blob);
        } catch (error) {
            console.warn('HackTimer: Blob not supported, using external script');
        }
    }

    class HackTimer {
        constructor(workerScript) {
            this.worker = null;
            this.callbacks = new Map();
            this.lastId = 0;
            this.maxId = 0x7FFFFFFF;
            this.logPrefix = 'HackTimer: ';
            this.originalTimers = {
                setInterval: window.setInterval,
                clearInterval: window.clearInterval,
                setTimeout: window.setTimeout,
                clearTimeout: window.clearTimeout
            };
            
            this.init(workerScript);
        }

        init(workerScript) {
            if (typeof Worker === 'undefined') {
                console.warn(this.logPrefix + 'Web Workers not supported');
                return;
            }

            try {
                this.worker = new Worker(workerScript);
                this.setupWorkerHandlers();
                this.overrideTimers();
            } catch (error) {
                console.error(this.logPrefix + 'Initialisation failed:', error);
            }
        }

        setupWorkerHandlers() {
            this.worker.onmessage = (event) => {
                const { fakeId } = event.data;
                this.executeCallback(fakeId);
            };

            this.worker.onerror = (event) => {
                console.error(this.logPrefix + 'Worker error:', event);
            };
        }

        generateId() {
            do {
                this.lastId = (this.lastId >= this.maxId) ? 1 : this.lastId + 1;
            } while (this.callbacks.has(this.lastId));
            return this.lastId;
        }

        executeCallback(fakeId) {
            const callbackData = this.callbacks.get(fakeId);
            if (!callbackData) return;

            const { callback, parameters, isTimeout } = callbackData;
            
            if (isTimeout) {
                this.callbacks.delete(fakeId);
            }

            try {
                if (typeof callback === 'function') {
                    callback.apply(window, parameters);
                } else if (typeof callback === 'string') {
                    const func = new Function(callback);
                    func.apply(window, parameters);
                }
            } catch (error) {
                console.error(this.logPrefix + 'Callback execution error:', error);
            }
        }

        overrideTimers() {
            window.setInterval = (callback, time, ...parameters) => {
                const fakeId = this.generateId();
                this.callbacks.set(fakeId, {
                    callback,
                    parameters,
                    isTimeout: false
                });
                
                this.worker.postMessage({
                    name: 'setInterval',
                    fakeId: fakeId,
                    time: Math.max(0, time || 0)
                });
                
                return fakeId;
            };

            window.clearInterval = (fakeId) => {
                if (this.callbacks.has(fakeId)) {
                    this.callbacks.delete(fakeId);
                    this.worker.postMessage({
                        name: 'clearInterval',
                        fakeId: fakeId
                    });
                }
            };

            window.setTimeout = (callback, time, ...parameters) => {
                const fakeId = this.generateId();
                this.callbacks.set(fakeId, {
                    callback,
                    parameters,
                    isTimeout: true
                });
                
                this.worker.postMessage({
                    name: 'setTimeout',
                    fakeId: fakeId,
                    time: Math.max(0, time || 0)
                });
                
                return fakeId;
            };

            window.clearTimeout = (fakeId) => {
                if (this.callbacks.has(fakeId)) {
                    this.callbacks.delete(fakeId);
                    this.worker.postMessage({
                        name: 'clearTimeout',
                        fakeId: fakeId
                    });
                }
            };
        }

        destroy() {
            if (this.worker) {
                this.worker.terminate();
                this.callbacks.clear();
                
                // Restore original timer functions
                Object.assign(window, this.originalTimers);
            }
        }
    }

    // Initialize HackTimer
    new HackTimer(workerScript);

})('HackTimerWorker.js');