☰

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/552983/1679867/HackTimer%20V1.js 

// ==UserScript==
// @license      MIT
// @name         HackTimer V1
// @namespace    HackTimer
// @version      1.0.9
// @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 {
            var blob = new Blob([`
var fakeIdToId = {};
onmessage = function (event) {
    var data = event.data,
        name = data.name,
        fakeId = data.fakeId,
        time;
    if (data.hasOwnProperty('time')) {
        time = data.time;
    }
    switch (name) {
        case 'setInterval':
            fakeIdToId[fakeId] = setInterval(function () {
                postMessage({fakeId: fakeId});
            }, time);
            break;
        case 'clearInterval':
            if (fakeIdToId.hasOwnProperty(fakeId)) {
                clearInterval(fakeIdToId[fakeId]);
                delete fakeIdToId[fakeId];
            }
            break;
        case 'setTimeout':
            fakeIdToId[fakeId] = setTimeout(function () {
                postMessage({fakeId: fakeId});
                if (fakeIdToId.hasOwnProperty(fakeId)) {
                    delete fakeIdToId[fakeId];
                }
            }, time);
            break;
        case 'clearTimeout':
            if (fakeIdToId.hasOwnProperty(fakeId)) {
                clearTimeout(fakeIdToId[fakeId]);
                delete fakeIdToId[fakeId];
            }
            break;
    }
}
`], { type: 'application/javascript' });
            workerScript = window.URL.createObjectURL(blob);
        } catch (error) {
            console.warn('HackTimer: Blob not supported, using external script');
        }
    }

    var worker,
        fakeIdToCallback = new Map(),
        lastFakeId = 0,
        maxFakeId = 0x6FFFFFFF,
        logPrefix = 'HackTimer: ';

    if (typeof Worker !== 'undefined') {
        function getFakeId() {
            do {
                lastFakeId = (lastFakeId === maxFakeId) ? 0 : lastFakeId + 0.25;
            } while (fakeIdToCallback.has(lastFakeId));
            return lastFakeId;
        }

        function executeCallback(fakeId) {
            const request = fakeIdToCallback.get(fakeId);
            if (!request) return;

            const { callback, parameters, isTimeout } = request;
            
            if (isTimeout) {
                fakeIdToCallback.delete(fakeId);
            }

            let callbackFunc = callback;
            if (typeof callback === 'string') {
                try {
                    callbackFunc = new Function(callback);
                } catch (error) {
                    console.error(logPrefix + 'Error parsing callback:', error);
                    return;
                }
            }

            if (typeof callbackFunc === 'function') {
                try {
                    callbackFunc.apply(window, parameters);
                } catch (error) {
                    console.error(logPrefix + 'Error executing callback:', error);
                }
            }
        }

        try {
            worker = new Worker(workerScript);
            
            const originalSetInterval = window.setInterval;
            const originalClearInterval = window.clearInterval;
            const originalSetTimeout = window.setTimeout;
            const originalClearTimeout = window.clearTimeout;

            window.setInterval = function (callback, time, ...parameters) {
                const fakeId = getFakeId();
                fakeIdToCallback.set(fakeId, {
                    callback: callback,
                    parameters: parameters,
                    isTimeout: false
                });
                worker.postMessage({
                    name: 'setInterval',
                    fakeId: fakeId,
                    time: Math.max(0, time || 0)
                });
                return fakeId;
            };

            window.clearInterval = function (fakeId) {
                if (fakeIdToCallback.has(fakeId)) {
                    fakeIdToCallback.delete(fakeId);
                    worker.postMessage({
                        name: 'clearInterval',
                        fakeId: fakeId
                    });
                }
            };

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

            window.clearTimeout = function (fakeId) {
                if (fakeIdToCallback.has(fakeId)) {
                    fakeIdToCallback.delete(fakeId);
                    worker.postMessage({
                        name: 'clearTimeout',
                        fakeId: fakeId
                    });
                }
            };

            worker.onmessage = function (event) {
                const { fakeId } = event.data;
                executeCallback(fakeId);
            };

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

        } catch (error) {
            console.error(logPrefix + 'Initialisation failed:', error);
        }
    } else {
        console.warn(logPrefix + 'Web Workers not supported');
    }
})('HackTimerWorker.js');