158 lines
3.5 KiB
HTML
158 lines
3.5 KiB
HTML
<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta http-equiv="X-UA-Compatible" content="IE=edge">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>弹幕</title>
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<style>
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* {
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margin: 0;
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padding: 0;
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list-style: none;
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outline: none;
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border: none;
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}
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.mian {
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width: 800px;
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height: 400px;
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background: #000;
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text-align: center;
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position: relative;
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overflow: hidden;
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}
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.mian span {
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position: absolute;
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color: #fff;
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white-space: nowrap;
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}
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.mian video {
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height: 360px;
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}
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.bulletchat {
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height: 40px;
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display: flex;
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background: #fff;
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align-items: center;
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}
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.bulletchat .inputText {
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flex: 1;
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}
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</style>
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</head>
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<body>
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<div class="mian">
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<video src="./video.mp4" controls autoplay muted></video>
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<div class="bulletchat">
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<input class="inputText" type="text" placeholder="请输入弹幕">
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<input value="#ffffff" type="color" class="color">
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<div class="all">全屏 </div>
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<div class="half">半屏 </div>
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<div class="small">3/1屏 </div>
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<button>发送</button>
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</div>
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</div>
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</body>
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<script>
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// 我做半屏弹幕，你们自己实现 全屏 和 3/1弹幕
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// 点击按钮获得输入框的文字，用文字生成标签放到网页上，运动起来。
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var send = $(".bulletchat button"),
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input = $(".bulletchat .inputText"),
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color = $(".bulletchat .color"),
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mian = $(".mian"),
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height = $(".mian video").clientHeight,
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<<<<<<< HEAD
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offsetTop = null,
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h=height - 21,
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width = $(".mian").clientWidth;
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send.onclick = function () {
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var span = document.createElement("span");
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offsetTop = Math.random() * h;
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=======
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h = height - 21, // 默认全屏
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width = $(".mian").clientWidth;
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console.log(h);
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send.onclick = function () {
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var span = document.createElement("span");
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>>>>>>> 1cf4dd3941996ba23835ad4cc9146a85a3ba8f6b
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span.innerText = input.value;
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// input.value = ""
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var offsetTop = Math.random() * h;
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mian.appendChild(span)
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span.style = `
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top: ${offsetTop}px;
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right: ${-span.clientWidth}px;
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color: ${color.value}
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`
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motion(span)
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}
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$(".all").onclick=function(){
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h=height - 21
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}
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$(".half").onclick=function(){
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h=height/2 - 21
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<<<<<<< HEAD
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}
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$(".small").onclick=function(){
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h=height/3 - 21
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}
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=======
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$(".all").onclick = function () {
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h = height - 21;
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}
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//
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$(".half").onclick = function () {
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h = height / 2 - 21;
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}
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$(".small").onclick = function () {
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h = height / 3 - 21;
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}
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>>>>>>> 1cf4dd3941996ba23835ad4cc9146a85a3ba8f6b
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function motion(el) {
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el.intervalId = setInterval(function () {
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var rightOffset = parseInt(el.style.right) + 1;
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el.style.right = `${rightOffset}px`
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if (rightOffset > width) {
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mian.removeChild(el)
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clearInterval(el.intervalId)
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}
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}, 6)
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}
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function $(className) {
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return document.querySelector(className)
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}
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</script>
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</html> |