• 使用HTML+CSS+JS模拟比赛晋级的动画功能

    使用HTML+CSS+JS模拟比赛晋级的动画功能

    系统：Win10
    Chrome：106.0.5249.119
    演示视频：【英雄联盟】S12全球总决赛冠军预测
    项目资源：HTML+CSS+JS模拟比赛晋级动画代码

    1.需求描述

    最近在做一个视频的时候，想做一个比赛晋级的效果，8强赛结束进入4强，4强结束进入决赛，决赛竞争出冠军，模拟这种比赛晋级流程，如果使用PR或者AE的话，使用关键帧技术都能轻松实现。
    这时突然想到，能不能使用前端三剑客HTML+CSS+JS来实现呢，顺便回顾下前端的知识，毕竟好久没写了，难免生疏。鉴于此，我便开始尝试使用代码来实现这个功能。

    2.代码实现

    这里的d iv 样式借鉴了 B站 的效果样式，然后效果是通过纯生的 css 和 javascript 实现的，主要通过定时器实现动态效果，通过 css 的透明度样式调整 div 块的显示

    <html>
<header>
	<title>
		S12全球总决赛冠军预测
	title>
	<style>
		body {
			background-color: #010516;
		}
		.content {
			width: 1920px;
			margin: 0 auto;
			background: #232332;
		}
		.tree-content {
			margin-top: 8%;
		}
		.content .match-map {
		 padding-top: 40px;
		 padding-bottom: 40px;
		}
		.match .info .round {
			height: 16px;
			display: flex;
			align-items: center;
			color: #fff;
			font-size: 12px;
			line-height: 16px;
			margin-bottom: 3px;
		}
		.single-connect {
		 width: 100%;
		 display: flex;
		 justify-content: center;
		 position: relative;
		}
		.single-connect .connections {
		 z-index: 1;
		 position: absolute;
		 top: 0;
		 left: 0;
		 width: 100%;
		 height: 100%;
		 pointer-events: none;
		}
		.team .info {
			flex: 1 1;
			display: flex;
			align-items: center;
		}
		.team .info .logo {
			width: 26px;
			min-width: 26px;
			height: 26px;
			margin: 0px 8px;
		}
		.team .info .name {
			font-family: Helvetica,Arial,sans-serif;
			font-size: 14px;
			height: 18px;
			line-height: 18px;
			white-space: nowrap;
			overflow: hidden;
			text-overflow: ellipsis;
			letter-spacing: 0;
		}
		.team.feature .info>.name {
			color: #fff;
		}
		.team {
			height: 44px;
			display: flex;
			position: relative;
		}
		.team.feature {
			margin-bottom: 1px;
			background: rgba(255,255,255,.1);
		}
		.team.unknown {
			background: rgba(255,255,255,.1);
		}
		.team.unknown .info>.name {
			color: #fff;
		}
		.single-connect .col-left {
			display: flex;
			flex-direction: column;
			align-items: flex-end;
			justify-content: center;
		}
		.single-connect .col-right {
			min-width: 268px;
			margin-left: 110px;
			display: flex;
			align-items: center;
		}
		.single-connect .connections .connection {
			stroke: rgba(255,255,255,.3);
			stroke-width: 2px;
			stroke-linecap: butt;
			stroke-linejoin: miter;
			fill: rgba(0,0,0,0);
		}
		.match {
			width: 268px;
		}
		.match .home-team {
			margin-bottom: 1px;
		}
		.future {
			opacity: 0;
		}
	style>
header>
<body>
	<div class="content">
		<div class="tree-content">
		
			<div class="match-map">
				<div class="single-connect">
					<svg class="connections">
						<path x1="1218" y1="237" x2="1458" y2="468" class="connection" id="line09">path>
						<path x1="1218" y1="697" x2="1458" y2="468" class="connection" id="line10">path>
					svg>
					<div class="col-left">
						
						<div class="match-map">
							<div class="single-connect">
								<svg class="connections">
									<path x1="646" y1="103" x2="756" y2="202" class="connection" id="line05">path>
									<path x1="646" y1="293" x2="756" y2="202" class="connection" id="line06">path>
								svg>
								<div class="col-left">
									
									<div class="match-map">
										<div class="single-connect">
											<svg class="connections">
												<path x1="268" y1="64" x2="378" y2="64" class="connection" id="line01">path>
											svg>
											<div class="col-left">
												<div class="match">
													<div class="i-row">
														<div class="info">
															<div class="round">
																淘汰赛
															div>
														div>
														<div class="options">
														div>
													div>
													<div class="match-c">
														<div class="home-team team feature">
															<div class="info">
																<img loading="lazy" src="jdg.webp" class="logo">
																<div class="name">
																	JDG
																div>
															div>
														div>
														<div class="team feature">
															<div class="info">
																<img loading="lazy" src="rge.webp" class="logo">
																<div class="name">
																	RGE
																div>
															div>
														div>
													div>
												div>
											div>
											<div class="col-right">
												<div class="match">
													<div class="i-row">
														<div class="info">
															<div class="round">
																半决赛
															div>
														div>
														<div class="options">
														div>
													div>
													<div class="match-c future" id="res01">
														<div class="team unknown">
															<div class="info">
																<img loading="lazy" src="jdg.webp" class="logo">
																<div class="name">
																	JDG
																div>
															div>
														div>
													div>
												div>
											div>
										div>
									div>
									
									<div class="match-map">
										<div class="single-connect">
											<svg class="connections">
												<path x1="268" y1="64" x2="378" y2="64" class="connection" id="line02">path>
											svg>
											<div class="col-left">
												<div class="match">
													<div class="i-row">
														<div class="info">
															<div class="round">
																淘汰赛
															div>
														div>
														<div class="options">
														div>
													div>
													<div class="match-c">
														<div class="home-team team feature">
															<div class="info">
																<img loading="lazy" src="t1.webp" class="logo">
																<div class="name">
																	T1
																div>
															div>
														div>
														<div class="team feature">
															<div class="info">
																<img loading="lazy" src="rng.webp" class="logo">
																<div class="name">
																	RNG
																div>
															div>
														div>
													div>
												div>
											div>
											<div class="col-right">
												<div class="match">
													<div class="i-row">
														<div class="info">
															<div class="round">
																半决赛
															div>
														div>
														<div class="options">
														div>
													div>
													<div class="match-c future" id="res02">
														<div class="team unknown">
															<div class="info">
																<img loading="lazy" src="t1.webp" class="logo">
																<div class="name">
																	T1
																div>
															div>
														div>
													div>
												div>
											div>
										div>
									div>
								div>
								<div class="col-right">
									<div class="match">
										<div class="i-row">
											<div class="info">
												<div class="round">
													决赛
												div>
											div>
											<div class="options">
											div>
										div>
										<div class="match-c future"  id="res05">
											<div class="team unknown">
												<div class="info">
													<img loading="lazy" src="jdg.webp" class="logo">
													<div class="name">
														JDG
													div>
												div>
											div>
										div>
									div>
								div>
							div>
						div>
						
						<div class="match-map">
							<div class="single-connect">
								<svg class="connections">
									<path x1="646" y1="103" x2="756" y2="202" class="connection" id="line07">path>
									<path x1="646" y1="293" x2="756" y2="202" class="connection" id="line08">path>
								svg>
								<div class="col-left">
									<div class="match-map">
										<div class="single-connect">
											<svg class="connections">
												<path x1="268" y1="64" x2="378" y2="64" class="connection" id="line03">path>
											svg>
											<div class="col-left">
												<div class="match">
													<div class="i-row">
														<div class="info">
															<div class="round">
																淘汰赛
															div>
														div>
														<div class="options">
														div>
													div>
													<div class="match-c">
														<div class="home-team team feature">
															<div class="info">
																<img loading="lazy" src="gen.webp" class="logo">
																<div class="name">
																	GEN
																div>
															div>
														div>
														<div class="team feature">
															<div class="info">
																<img loading="lazy" src="dk.webp" class="logo">
																<div class="name">
																	DK
																div>
															div>
														div>
													div>
												div>
											div>
											<div class="col-right">
												<div class="match">
													<div class="i-row">
														<div class="info">
															<div class="round">
																半决赛
															div>
														div>
														<div class="options">
														div>
													div>
													<div class="match-c future"  id="res03">
														<div class="team unknown">
															<div class="info">
																<img loading="lazy" src="dk.webp" class="logo">
																<div class="name">
																	DK
																div>
															div>
														div>
													div>
												div>
											div>
										div>
									div>
									<div class="match-map">
										<div class="single-connect">
											<svg class="connections">
												<path x1="268" y1="64" x2="378" y2="64" class="connection" id="line04">path>
											svg>
											<div class="col-left">
												<div class="match">
													<div class="i-row">
														<div class="info">
															<div class="round">
																淘汰赛
															div>
														div>
														<div class="options">
														div>
													div>
													<div class="match-c">
														<div class="home-team team feature">
															<div class="info">
																<img loading="lazy" src="drx.webp" class="logo">
																<div class="name">
																	DRX
																div>
															div>
														div>
														<div class="team feature">
															<div class="info">
																<img loading="lazy" src="edg.webp" class="logo">
																<div class="name">
																	EDG
																div>
															div>
														div>
													div>
												div>
											div>
											<div class="col-right">
												<div class="match">
													<div class="i-row">
														<div class="info">
															<div class="round">
																半决赛
															div>
														div>
														<div class="options">
														div>
													div>
													<div class="match-c future"  id="res04">
														<div class="team unknown">
															<div class="info">
																<img loading="lazy" src="drx.webp" class="logo">
																<div class="name">
																	DRX
																div>
															div>
														div>
													div>
												div>
											div>
										div>
									div>
								div>
								<div class="col-right">
									<div class="match">
										<div class="i-row">
											<div class="info">
												<div class="round">
													决赛
												div>
											div>
											<div class="options">
											div>
										div>
										<div class="match-c future"  id="res06">
											<div class="team unknown">
												<div class="info">
													<img loading="lazy" src="dk.webp" class="logo">
													<div class="name">
														DK
													div>
												div>
											div>
										div>
									div>
								div>
							div>
						div>
					div>
					<div class="col-right" style="margin-left: 240px;">
						<div class="match">
							<div class="i-row">
								<div class="info">
									<div class="round">
										S12全球总决赛冠军 
									div>
								div>
								<div class="options">
								div>
							div>
							<div class="match-c future"  id="res07">
								<div class="team unknown">
									<div class="info">
										<img loading="lazy" src="jdg.webp" class="logo">
										<div class="name">
											JDG
										div>
									div>
								div>
							div>
						div>
					div>
				div>
			div>
		div>
	div>
	<script>
		onload = function(){
			let index = 0;
			time = setInterval(function(){
				if(index == 0){
					console.log("drawLine 01");
					drawLine("line01");
				}else if(index == 1){
					console.log("showRes 01");
					showRes("res01");
				}else if(index == 2){
					console.log("drawLine 02");
					drawLine("line02");
				}else if(index == 3){
					console.log("showRes 02");
					showRes("res02");
				}else if(index == 4){
					console.log("drawLine 03");
					drawLine("line03");
				}else if(index == 5){
					console.log("showRes 03");
					showRes("res03");
				}else if(index == 6){
					console.log("drawLine 04");
					drawLine("line04");
				}else if(index == 7){
					console.log("showRes 04");
					showRes("res04");
				}else if(index == 8){
					console.log("drawLine 05,06");
					drawTwoLine("line05","line06");
				}else if(index == 9){
					console.log("showRes 05");
					showRes("res05");
				}else if(index == 10){
					console.log("drawLine 07,08");
					drawTwoLine("line07","line08");
				}else if(index == 11){
					console.log("showRes 06");
					showRes("res06");
				}else if(index == 12){
					console.log("drawLine 09,10");
					drawTwoLine("line09","line10");
				}
				if(index == 14){
					clearInterval(time);
					showRes("res07");
				}
				index++;
				console.log(index);
			},1000);
			
		}
		
		function drawLine(id){
			let obj = document.getElementById(id);
			let x1 = obj.getAttribute("x1");
			let y1 = obj.getAttribute("y1");
			let x2 = obj.getAttribute("x2");
			let y2 = obj.getAttribute("y2");
			let x = x1;
			let y = y1;
			t1 = setInterval(function(){
				if(x == x2 && y==y2){
					clearInterval(t1);
				}
				if(x < x2) {
					x++;
				}
				if(y<y2) {
					y++;
				} else if(y> y2){
					y--;
				}
				let value = "M" + x1 +" "+ y1 +" "+ x +" "+ y;
				obj.setAttribute("d",value);
			},10);
		}
		
		function drawTwoLine(id1,id2){
			let obj1 = document.getElementById(id1);
			let obj2 = document.getElementById(id2);
			console.log(obj1);
			console.log(obj2);
			let obj1_x1 = obj1.getAttribute("x1");
			let obj1_y1 = obj1.getAttribute("y1");
			let obj1_x2 = obj1.getAttribute("x2");
			let obj1_y2 = obj1.getAttribute("y2");
			let obj1_x = obj1_x1;
			let obj1_y = obj1_y1;
			let obj2_x1 = obj2.getAttribute("x1");
			let obj2_y1 = obj2.getAttribute("y1");
			let obj2_x2 = obj2.getAttribute("x2");
			let obj2_y2 = obj2.getAttribute("y2");
			let obj2_x = obj2_x1;
			let obj2_y = obj2_y1;
			t1 = setInterval(function(){
				if(obj1_x == obj1_x2 && obj1_y==obj1_y2 && obj2_x == obj2_x2 && obj2_y==obj2_y2){
					clearInterval(t1);
				}
				if(obj1_x < obj1_x2) {
					obj1_x++;
				}
				if(obj1_y<obj1_y2) {
					obj1_y++;
				} else if(obj1_y> obj1_y2){
					obj1_y--;
				}
				let obj1_value = "M" + obj1_x1 +" "+ obj1_y1 +" "+ obj1_x +" "+ obj1_y;
				obj1.setAttribute("d",obj1_value);
				
				if(obj2_x < obj2_x2) {
					obj2_x++;
				}
				if(obj2_y<obj2_y2) {
					obj2_y++;
				} else if(obj2_y> obj2_y2){
					obj2_y--;
				}
				let obj2_value = "M" + obj2_x1 +" "+ obj2_y1 +" "+ obj2_x +" "+ obj2_y;
				obj2.setAttribute("d",obj2_value);
			},10);
		}
		
		function showRes(id){
			let obj = document.getElementById(id);
			let opacity = 0;
			t2 = setInterval(function(){
				opacity = opacity + 1;
				if(opacity == 10){
					clearInterval(t2);
				}
				obj.style.opacity = opacity/10;
			},100);
		}
	script>
body>
<html>

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    3.效果演示

    在这里插入图片描述

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  • 原文地址：https://blog.csdn.net/qq_35132089/article/details/127377009