iooi

马黑黑 · 发表于 2023-3-26 10:51

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本帖最后由马黑黑于 2023-3-26 10:58 编辑

马黑黑 · 发表于 2023-3-26 10:54

代码

<style>
#papa {
margin: -80px 0 0 calc(50% - 593px);
width: 1024px;
height: 640px;
background: url('https://638183.freep.cn/638183/t23/webp/iooi.webp') center/cover no-repeat;
box-shadow: 3px 3px 20px #000;
position: relative;
z-index: 1;
}
#papa:hover #mplayer { transition: .7s; opacity: .9; }
#vid { display: none; }
#canv {
position: absolute;
display: block;
opacity: 1;
animation: opa 20s infinite alternate linear;
}
#mplayer {
position: absolute;
left: calc(50% - 15px);
bottom: 5px;
width: 30px;
height: 30px;
border: 2px solid blue;
border-radius: 50%;
opacity: 0;
transition: .7s;
display: grid;
place-items: center;
--disp1: 0; --disp2: 1;
}
#mplayer::before, #mplayer::after {
position: absolute;
content: '';
border-style: solid;
border-color: blue;
cursor: pointer;
transition: .4s;
}
#mplayer::before {
width: 0;
height: 0;
left: 10px;
border-width: 10px 12px;
border-color: transparent transparent transparent blue;
opacity: var(--disp1);
}
#mplayer::after {
width: 2px;
height: 20px;
border-width: 0 4px 0 4px;
opacity: var(--disp2);
}
@keyframes opa { to {opacity: 0;} }
</style>
<div id="papa">
<canvas id="canv"></canvas>
<div id="mplayer"></div>
</div>
<audio id="aud" src="https://music.163.com/song/media/outer/url?id=1978621916" loop autoplay></audio>
<video id="vid" src="https://img.tukuppt.com/video_show/2629112/00/02/33/5b57cbd737c25.mp4" loop autoplay></video>
<script>
let ctx = canv.getContext('2d');
let ww = canv.width = papa.offsetWidth, hh = canv.height = papa.offsetHeight;
let loop = () => {ctx.drawImage(vid, 0, 50, ww, hh, 0, 0, ww + 100, hh + 200);if(!vid.paused) {requestAnimationFrame(loop);return;}};
let mState = () => aud.paused ? (mplayer.style.setProperty('--disp1','1'), mplayer.style.setProperty('--disp2','0'), vid.pause()) : (mplayer.style.setProperty('--disp1','0'), mplayer.style.setProperty('--disp2','1'), vid.play());
vid.addEventListener('play', loop, false);
aud.addEventListener('play', () => mState());
aud.addEventListener('pause', () => mState());
mplayer.addEventListener('click', () => aud.paused ? aud.play() : aud.pause());
</script>