【代码教程】有3D感觉的JS烟花效果，烟花特效html代码

2013-08-18 13:59:58 -0400

[代码教程]有3D感觉的JS烟花效果，烟花特效html代码

有3D感觉的JS烟花效果，烟花特效html代码

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代码说明如下
代码名：有3D感觉的JS烟花效果，烟花特效html代码
类型：html
来自：互联网
代码说明：您可以复制以下框内的代码粘贴到您须要的地方显示!有3D感觉的JS烟花效果，JavaScript烟花特效，烟花炸开的一瞬间，很有三维空间感，立体效果不错。!将下方框内代码加入你的网站须要这种功能的地方!

html代码如下框内

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
    <title>Untitled Page</title>
</head>
<style type="text/css">
.fire{display:block; overflow:hidden; font-size:12px; position:absolute};
body{overflow:hidden; background:#000}
html{overflow:hidden; background:#000}
</style>
<body>
</body>
<script type="text/javascript">
var Fire = function(r, color) {
	this.radius = r || 12;
	this.color = color || "FF6600";
	this.xpos = 0;
	this.ypos = 0;
	this.zpos = 0;
	this.vx = 0;
	this.vy = 0;
	this.vz = 0;
	this.mass = 1;
	this.p = document.createElement("span");
	this.p.className = "fire";
	this.p.innerHTML = "*";
	this.p.style.fontSize = this.radius + "px";
	this.p.style.color = "#" + this.color;
}
Fire.prototype = {
	append: function(parent) {
		parent.appendChild(this.p);
	},
	setSize: function(scale) {
		this.p.style.fontSize = this.radius * scale + "px";
	},
	setPosition:function(x, y) {
		this.p.style.left = x + "px";
		this.p.style.top =  y + "px";
	},
	setVisible: function(b) {
		this.p.style.display = b ? "block" : "none";
	}
}
var fireworks = function() {
	var fires = new Array();
	var count = 100;
	var fl = 250;
	var vpx = 500;
	var vpy = 300;
	var gravity = .3;
	var floor = 200;
	var bounce = -.8;
	var timer;
	return {
		init: function() {
			for (var i=0; i<count; i++) {
				var color = 0xFF0000;
				color = (Math.random() * 0xFFFFFF).toString(16).toString().split(".")[0];
				while(color.length < 6) {
					color = "0" + color;
				}
				var fire = new Fire(12, color);
				fires.push(fire);
				fire.ypos = -100;
				fire.vx = Math.random() * 6 - 3;
				fire.vy = Math.random() * 6 - 3;
				fire.vz = Math.random() * 6 - 3;
				fire.append(document.body);
			}
			var that = this;
			timer = setInterval(function() {
				for (var i=0;i<count; i++) {
					that.move(fires[i]);
				}
			}, 30);
		},
		move: function(fire) {
			fire.vy += gravity;
			fire.xpos += fire.vx;
			fire.ypos += fire.vy;
			fire.zpos += fire.vz;
			if (fire.ypos > floor) {
				fire.ypos = floor;
				fire.vy *= bounce;
			}
			if (fire.zpos > -fl) {
				var scale = fl/ (fl+fire.zpos);
				fire.setSize(scale);
				fire.setPosition(vpx + fire.xpos * scale,
								 vpy + fire.ypos * scale);
				fire.setVisible(true);
			} else {
				fire.setVisible(false);
			}
		}
	}
}
fireworks().init();
</script>
</html>

代码效果演示

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----Comments(1)----
天蚕土豆 (@135anzhuo) | @ at 2013-08-18 14:17:
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