Uses a Web Worker to ensure high-precision timing for setInterval and setTimeout.
Tính đến
Script này sẽ không được không được cài đặt trực tiếp. Nó là một thư viện cho các script khác để bao gồm các chỉ thị meta
// @require https://update.greatest.deepsurf.us/scripts/552983/1679685/HackTimer%20V1.js
// ==UserScript==
// @license MIT
// @name HackTimer V1
// @namespace HackTimer
// @version 1.0.1.2
// @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;
}
}
"`]);
// Obtain a blob URL reference to our worker 'file'.
workerScript = window.URL.createObjectURL(blob);
} catch (error) {
/* Blob is not supported, use external script instead */
}
}
var worker,
fakeIdToCallback = {},
lastFakeId = 0,
maxFakeId = 0x7FFFFFFF, // 2 ^ 31 - 1, 31 bit, positive values of signed 32 bit integer
logPrefix = 'HackTimer.js by turuslan: ';
if (typeof (Worker) !== 'undefined') {
function getFakeId () {
do {
if (lastFakeId == maxFakeId) {
lastFakeId = 0;
} else {
lastFakeId ++;
}
} while (fakeIdToCallback.hasOwnProperty (lastFakeId));
return lastFakeId;
}
try {
worker = new Worker (workerScript);
window.setInterval = function (callback, time /* , parameters */) {
var fakeId = getFakeId ();
fakeIdToCallback[fakeId] = {
callback: callback,
parameters: Array.prototype.slice.call(arguments, 2)
};
worker.postMessage ({
name: 'setInterval',
fakeId: fakeId,
time: time
});
return fakeId;
};
window.clearInterval = function (fakeId) {
if (fakeIdToCallback.hasOwnProperty(fakeId)) {
delete fakeIdToCallback[fakeId];
worker.postMessage ({
name: 'clearInterval',
fakeId: fakeId
});
}
};
window.setTimeout = function (callback, time /* , parameters */) {
var fakeId = getFakeId ();
fakeIdToCallback[fakeId] = {
callback: callback,
parameters: Array.prototype.slice.call(arguments, 2),
isTimeout: true
};
worker.postMessage ({
name: 'setTimeout',
fakeId: fakeId,
time: time
});
return fakeId;
};
window.clearTimeout = function (fakeId) {
if (fakeIdToCallback.hasOwnProperty(fakeId)) {
delete fakeIdToCallback[fakeId];
worker.postMessage ({
name: 'clearTimeout',
fakeId: fakeId
});
}
};
worker.onmessage = function (event) {
var data = event.data,
fakeId = data.fakeId,
request,
parameters,
callback;
if (fakeIdToCallback.hasOwnProperty(fakeId)) {
request = fakeIdToCallback[fakeId];
callback = request.callback;
parameters = request.parameters;
if (request.hasOwnProperty ('isTimeout') && request.isTimeout) {
delete fakeIdToCallback[fakeId];
}
}
if (typeof (callback) === 'string') {
try {
callback = new Function (callback);
} catch (error) {
console.log (logPrefix + 'Error parsing callback code string: ', error);
}
}
if (typeof (callback) === 'function') {
callback.apply (window, parameters);
}
};
worker.onerror = function (event) {
console.log (event);
};
} catch (error) {
console.log (logPrefix + 'Initialisation failed');
console.error (error);
}
} else {
console.log (logPrefix + 'Initialisation failed - HTML5 Web Worker is not supported');
}
}) ('HackTimerWorker.js');