jQuery实现飞翔的3D文字效果

2014-04-07 08:17:13 -0400

代码说明

jQuery实现的3D飞翔文字效果，好像比较占用资源，效果出来的时候感觉机器有点卡，喜欢jQuery就拿去自己优化吧，创作思路还是可以借鉴的。初次打开若看不到效果，请刷新本页面载入jQuery即可。转自源码爱好者

HTML代码

<style type="text/css" media="screen">
body{
	background:#000;
	margin:0;
	overflow:hidden;
	padding:0; 
}
li{
	color:#fff;
	font:bold 13px Arial,sans-serif;
	list-style: none;
}
a{
	text-decoration:none;
}
		
</style>
	</head>
	<body>
		<ul>
			<li><a href="#">A</a></li>
	        <li><a href="#">B</a></li>
	        <li><a href="#">C</a></li>
	        <li><a href="#">D</a></li>
	        <li><a href="#">E</a></li>
	        <li><a href="#">F</a></li>
	        <li><a href="#">G</a></li>
	        <li><a href="#">H</a></li>
	        <li><a href="#">I</a></li>
	        <li><a href="#">J</a></li>
	        <li><a href="#">K</a></li>
	        <li><a href="#">L</a></li>
	        <li><a href="#">M</a></li>
	        <li><a href="#">N</a></li>
	        <li><a href="#">O</a></li>
	        <li><a href="#">P</a></li>
	        <li><a href="#">Q</a></li>
	        <li><a href="#">R</a></li>
	        <li><a href="#">S</a></li>
	        <li><a href="#">T</a></li>
	        <li><a href="#">U</a></li>
	        <li><a href="#">V</a></li>
	        <li><a href="#">W</a></li>
	        <li><a href="#">X</a></li>
	        <li><a href="#">Y</a></li>
	        <li><a href="#">Z</a></li>
		</ul>
	</body>
	<script src="http://www.codefans.net/ajaxjs/jquery1.3.2.js" type="text/javascript" charset="utf-8"></script>
	<script type="text/javascript">
	var x = new Array();
	var y = new Array();
	var z = new Array();
	var items = $('li');
	function animate()
	{
		for(i = items.length - 1; i >= 0; i--){
			var xVar = 50 + x[i] 			// x value
			var yVar = 50 + y[i] * z[i]++;	// y value, move towards bottom of screen
			var zVar = 10 * z[i]++;			// z value, text get larger.
			if (!xVar | xVar < 0 | xVar > 90| 
				yVar < 0 | yVar > 90 | 
				zVar < 0 | zVar > 1500)
			{
				//if it's off the screen randomly pick a starting place.
				x[i]= Math.random() * 2 - 1;
				y[i] = Math.random() * 2 - 1;
				z[i] = 2; 
				
			}
			else
			{
				$(items[i]).css("position", "absolute"); // make sure we can move the text around.
				$(items[i]).css("top", xVar+"%");  // y value
				$(items[i]).css("left", yVar+"%"); // x value
				$(items[i]).css("fontSize", zVar+"%"); // font size (illusion of perspective.)
				$(items[i]).css("opacity",(zVar)/3000); // fade in from the distance.
			}
		}
	
		setTimeout(animate, 9);
	}
animate();
</script>

代码演示

A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z

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