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Auto Scroll for YouTube shorts + extra features

Auto Scroll, Also ignores SponsorBlock videos, right click gives immunity to move mouse. thumbs down auto scrolls to next video
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// ==UserScript==
// @name Auto Scroll for YouTube shorts + extra features
// @namespace http://tampermonkey.net/
// @version 4.4
// @description Auto Scroll, Also ignores SponsorBlock videos, right click gives immunity to move mouse. thumbs down auto scrolls to next video
// @author Justn
// @match https://www.youtube.com/shorts/*
// @grant none
// @run-at document-end
// @license MIT
// ==/UserScript==

(function () {
    'use strict';

    let mouseMoved = false;
    let isEnabled = true;
    let rightClickHeld = false;
    let lastX = 0;
    let lastY = 0;
    const MIN_MOVE = 25;

    const toggle = document.createElement('div');
    toggle.style.cssText = 'position:fixed;bottom:20px;right:20px;padding:0 18px;height:60px;border-radius:30px;background:#ff0000;color:white;font:bold 18px Arial;display:flex;align-items:center;justify-content:center;cursor:pointer;z-index:9999999;box-shadow:0 0 20px black;user-select:none;transition:all 0.3s;min-width:100px;';
    toggle.textContent = 'AUTO';
    toggle.title = 'Click to toggle auto-scroll';
    document.body.appendChild(toggle);

    const updateToggle = () => {
        if (!isEnabled) {
            toggle.style.background = '#666';
            toggle.textContent = 'OFF';
            toggle.style.color = 'white';
            toggle.style.textShadow = 'none';
        } else {
            toggle.style.background = '#ff0000';
            toggle.textContent = mouseMoved ? 'MANUAL' : 'AUTO';
            toggle.style.color = mouseMoved ? '#000000' : 'white';
            toggle.style.textShadow = mouseMoved ? '0 0 10px white' : 'none';
        }
    };
    updateToggle();

    toggle.onclick = () => {
        isEnabled = !isEnabled;
        mouseMoved = false;
        updateToggle();
    };

    const smashNext = () => {
        const btn = document.querySelector('button[aria-label="Next (shortcut: ↓)"]') || document.querySelector('button[aria-label*="Next"]');
        if (btn) btn.click();
    };

    const resetMouse = () => {
        if (!rightClickHeld) {
            mouseMoved = false;
            updateToggle();
        }
    };

    document.addEventListener('mousedown', e => {
        if (e.button === 2) {
            rightClickHeld = true;
            lastX = e.clientX;
            lastY = e.clientY;
        }
    });

    document.addEventListener('mouseup', e => {
        if (e.button === 2) {
            rightClickHeld = false;
            lastX = e.clientX;
            lastY = e.clientY;
        }
    });

    document.addEventListener('contextmenu', e => e.preventDefault());

    document.addEventListener('mousemove', e => {
        if (!isEnabled || rightClickHeld) return;

        const dx = Math.abs(e.clientX - lastX);
        const dy = Math.abs(e.clientY - lastY);
        if (dx >= MIN_MOVE || dy >= MIN_MOVE) {
            mouseMoved = true;
            updateToggle();
            lastX = e.clientX;
            lastY = e.clientY;
        }
    });

    // FIXED: Only trigger instant skip when clicking the MAIN video dislike button
    document.addEventListener('click', e => {
        if (!isEnabled) return;

        const btn = e.target.closest('button');
        if (!btn) return;

        const aria = btn.getAttribute('aria-label') || '';
        if (aria.toLowerCase().includes('dislike this video') ||
            aria.toLowerCase().includes('dislike') && btn.closest('ytd-reel-video-renderer')) {
            setTimeout(smashNext, 150);
        }
    });

    window.addEventListener('yt-navigate-start', () => {
        if (!location.pathname.startsWith('/shorts/')) {
            toggle.style.display = 'none';
        }
    });

    window.addEventListener('yt-navigate-finish', () => {
        if (location.pathname.startsWith('/shorts/')) {
            toggle.style.display = 'flex';
            updateToggle();
        }
    });

    setInterval(() => {
        if (!isEnabled) return;
        if (document.querySelector('.ytp-sponsor-skip-button, .sbSkipButton, [data-sb-segment]')) {
            smashNext();
            return;
        }
        const video = document.querySelector('ytd-reel-video-renderer[is-active] video');
        if (!video || isNaN(video.duration)) return;
        if (video.currentTime < 0.5) resetMouse();
        if (video.currentTime >= video.duration - 0.2 && !mouseMoved) smashNext();
    }, 100);
})();
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