Sword Masters - 9x Speed Boost

Tăng tốc game Sword Masters lên 9 lần. Nhấn phím 'B' để Bật/Tắt.
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Wrap lines
// ==UserScript==
// @name         Sword Masters - 9x Speed Boost
// @namespace    http://tampermonkey.net/
// @version      8.1
// @description  Tăng tốc game Sword Masters lên 9 lần. Nhấn phím 'B' để Bật/Tắt.
// @author       Gemini
// @match        *://*.swordmasters.io/*
// @match        *://swordmasters.io/*
// @run-at       document-start
// @grant        none
// ==/UserScript==

(function() {
    'use strict';

    const SPEED_MULTIPLIER = 9;
    let isBoostActive = false; 

    let baseDate = Date.now();
    let fakeDate = baseDate;
    let basePerf = performance.now();
    let fakePerf = basePerf;

    const originalDateNow = Date.now;
    const originalPerfNow = performance.now.bind(performance);

    Date.now = function() {
        let now = originalDateNow();
        let diff = now - baseDate;
        baseDate = now;
        fakeDate += diff * (isBoostActive ? SPEED_MULTIPLIER : 1);
        return fakeDate;
    };

    performance.now = function() {
        let now = originalPerfNow();
        let diff = now - basePerf;
        basePerf = now;
        fakePerf += diff * (isBoostActive ? SPEED_MULTIPLIER : 1);
        return fakePerf;
    };

    // UI thông báo
    window.addEventListener('DOMContentLoaded', () => {
        const ui = document.createElement('div');
        ui.style.cssText = `
            position: fixed; top: 10px; left: 50%; transform: translateX(-50%);
            padding: 8px 15px; background: rgba(0, 0, 0, 0.8); color: #fff;
            font-family: sans-serif; font-size: 14px; border-radius: 5px;
            z-index: 9999999; border: 1px solid #444; pointer-events: none;
        `;
        ui.innerHTML = `Sword Masters Speed: <span id="boostStatus" style="color: #ff4444;">OFF</span> (Phím B)`;
        document.body.appendChild(ui);

        window.addEventListener('keydown', (e) => {
            if (e.key.toLowerCase() === 'b') {
                isBoostActive = !isBoostActive;
                const statusSpan = document.getElementById('boostStatus');
                statusSpan.innerText = isBoostActive ? "ON (9x)" : "OFF";
                statusSpan.style.color = isBoostActive ? "#00ff00" : "#ff4444";
            }
        });
    });
})();