HTML5 text barrage effect-HTML Tutorial-php.cn

HTML5 text barrage effect

韦小宝

Release： 2017-11-22 11:32:41

Original

9929 people have browsed it

HTML5The text barrage effect is quite interesting. If you are interested in HTML5, study it and learnHTML5.

Implementation demonstration:

Code demonstration:

<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8"/>
<title>PHP中文网--HTML5文字弹幕效果代码</title>
<style type="text/css">
*{
	margin:0;
	padding:0;
	list-style: none;
	border:0;
}
body{
	background: #bcbcbc;
}
.main{
	width: 600px;
	height: 400px;
	margin:0 auto;
	position: relative;
}
.main img{
	position: absolute;
	right: 0;
	bottom:0;
	width: 100px;
	height: 100px;
}
#canvas{
	display: block;
	background: #000;
}
</style>
</head>
<body>

<div class="main">
	<canvas id="canvas">嗨帅哥您的浏览器不支持canvas赶紧去升级吧</canvas>

</div>

<script type="text/javascript">
	var canvas=document.getElementById(&#39;canvas&#39;);
	var ctx=canvas.getContext("2d");
	var width=600;
	var height=400;
	var colorArr=["yellow","pink","orange","red","green"];
	var textArr=[
		"PHP中文网不错我经常去！",
		"我用双手成就你的梦想",
		"犯我德邦者，虽远必诛！",
		"PHP中文网在线网络课程报名啦！！！",
		"PHP中文网在线网络课程报名啦！！！",
		"PHP中文网在线网络课程报名啦！！！",
		"PHP中文网在线网络课程报名啦！！！",
		"PHP中文网在线网络课程报名啦！！！",
		"陷阵之志，有死无生",
		"即使敌众我寡，末将亦能万军从中取敌将首级！"
	]
	canvas.width=width;
	canvas.height=height;
	var image=new Image();

	ctx.font = "20px Courier New";
	var numArrL=[80,100,5,300,500,430];//初始的X
	var numArrT=[80,100,20,300,380,210];//初始的Y
	setInterval(function(){
	ctx.clearRect(0,0,canvas.width,canvas.height);
	ctx.save();
	for(var j=0;j<textArr.length;j++){
		numArrL[j]-=(j+1)*0.6;
		ctx.fillStyle = colorArr[j]
		ctx.fillText(textArr[j],numArrL[j],numArrT[j]);
	}
	for(var i=0;i<textArr.length;i++){
		if(numArrL[i]<=-500){
			numArrL[i]=canvas.width;
		}
	}
	ctx.restore();
	},30)

</script>


</body>
</html>

Copy after login

The above is the HTML5 text bomb Screen effect source code, interested students can also go to PHP中文网 to search for more related knowledge~

Related recommendations:

HTML5 image upload preprocessing

Use HTML5 to create screen gesture unlock function

Use Tutorial on writing login page with html5 and css3

The above is the detailed content of HTML5 text barrage effect. For more information, please follow other related articles on the PHP Chinese website!