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HTML5 text barrage effect

韦小宝

Nov 22, 2017 am 11:32 AM

h5html5letter

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>

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~

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HTML5 image upload preprocessing

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

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