Uses a Web Worker to ensure high-precision timing for setInterval and setTimeout.
目前為
此腳本不應該直接安裝，它是一個供其他腳本使用的函式庫。欲使用本函式庫，請在腳本 metadata 寫上： // @require https://update.greasyfork.org/scripts/552983/1679776/HackTimer%20V1.js
// ==UserScript==
// @license MIT
// @name HackTimer V1
// @namespace HackTimer
// @version 1.0.7
// @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');