piaopingku

douyu
Ten skrypt nie powinien być instalowany bezpośrednio. Jest to biblioteka dla innych skyptów do włączenia dyrektywą meta // @require https://update.greasyfork.org/scripts/404682/812513/piaopingku.js
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// ==UserScript==
// @name         斗鱼恢复飘屏弹幕
// @namespace    https://jq.qq.com/?_wv=1027&k=5LDqRdJ
// @version      0.1
// @description  可在特殊时期恢复飘屏弹幕
// @author       大表弟
// @compatible   chrome
// @license      MIT
// @icon         https://s2.ax1x.com/2020/02/28/3Dyt0g.png
// @match        http*://www.douyu.com/*
// ==/UserScript==
(function() {
    'use strict';
    var FONT_SIZE = 24
    var DANMU_PADDING = 16
    var SPEED = 210
    var MIN_TIME = 2000 
    var BEGIN_TOP = 10 
    var start = setInterval(function(){
        if (document.querySelector("#__h5player").children[3].children[1]){
            initApplication()
            clearInterval(start)
        }
    },500)
    function initApplication(){
        var startTime = 0
        var prevTop = 0
        var targetNode = document.getElementById('js-player-barrage');
        var config = { attributes: false, childList: true, subtree: true };
        var callback = function(mutationsList) {
            for(var mutation of mutationsList) {
                if(mutation.addedNodes[0]){
                    send(mutation.addedNodes[0].querySelector(".Barrage-content"));
                }
            }
        };
        var observer = new MutationObserver(callback);
        observer.observe(targetNode, config);
        var wrapper = document.querySelector("#__h5player").children[3].children[1]
        function send(danmu) {
            if(!danmu) return;
            var dom = danmu.cloneNode(true)
            var now = new Date()
            var clientWidth = wrapper.clientWidth
            var clientHeight = wrapper.clientHeight
            var time = clientWidth / SPEED
            dom.style.position = 'absolute'
            dom.style.zIndex = '10000'
            dom.style.transition = `transform ${time}s linear`
            dom.style.transform = `translateX(${clientWidth}px)`
            dom.style.fontSize = `${FONT_SIZE}px`
            dom.style.fontWeight = '800'
            if (!danmu.getAttribute('class').includes('color')){
                dom.style.color = '#fff'
                dom.style.textShadow = '#000 1px 0 0,#000 0 1px 0,#000 -1px 0 0,#000 0 -1px 0'
            }
            var top = BEGIN_TOP
            if (startTime === 0 ) {
                startTime = now
            } else {
                if(now - startTime <= MIN_TIME && prevTop + 2 * FONT_SIZE + DANMU_PADDING < clientHeight) {
                    top=prevTop + FONT_SIZE + DANMU_PADDING
                    prevTop = prevTop + FONT_SIZE + DANMU_PADDING
                } else {
                    top=BEGIN_TOP
                    prevTop = BEGIN_TOP
                    startTime = now
                }
            }
            dom.style.top = `${top}px`
            wrapper.append(dom)
            setTimeout(function(){dom.style.transform = 'translateX(-200px)'},0)
            setTimeout(function(){dom.remove()},time * 1000)
        }
    }
})();