<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title></title>
<script src="js/jquery.min.js"></script>
<link type="text/css" href="./css/style.css" rel="stylesheet" />
<style>
html,
body {
width: 100%;
height: 100%;
margin: 0;
padding: 0;
overflow: hidden;
}
.container {
width: 100%;
height: 100%;
margin: 0;
padding: 0;
}
</style>
</head>
<body>
<audio autoplay="autopaly">
<source src="sjzmd.mp3" type="audio/mp3" />
</audio>
<div id="jsi-snow-container" class="container"></div>
<div class="box">
<ul class="minbox">
<li></li>
<li></li>
<li></li>
<li></li>
<li></li>
<li></li>
</ul>
<ol class="maxbox">
<li></li>
<li></li>
<li></li>
<li></li>
<li></li>
<li></li>
</ol>
</div>
</div>
<script>
var RENDERER = {
SNOW_COUNT: {
INIT: 100,
DELTA: 1
},
BACKGROUND_COLOR: 'hsl(%h, 50%, %l%)',
INIT_HUE: 180,
DELTA_HUE: 0.1,
init: function() {
this.setParameters();
this.reconstructMethod();
this.createSnow(this.SNOW_COUNT.INIT * this.countRate, true);
this.render();
},
setParameters: function() {
this.$window = $(window);
this.$container = $('#jsi-snow-container');
this.width = this.$container.width();
this.height = this.$container.height();
this.center = {
x: this.width / 2,
y: this.height / 2
};
this.countRate = this.width * this.height / 500 / 500;
this.canvas = $('<canvas />').attr({
width: this.width,
height: this.height
}).appendTo(this.$container).get(0);
this.context = this.canvas.getContext('2d');
this.radius = Math.sqrt(this.center.x * this.center.x + this.center.y * this.center.y);
this.hue = this.INIT_HUE;
this.snows = [];
},
reconstructMethod: function() {
this.render = this.render.bind(this);
},
createSnow: function(count, toRandomize) {
for (var i = 0; i < count; i++) {
this.snows.push(new SNOW(this.width, this.height, this.center, toRandomize));
}
},
render: function() {
requestAnimationFrame(this.render);
var gradient = this.context.createRadialGradient(this.center.x, this.center.y, 0, this.center.x, this.center.y, this.radius),
backgroundColor = this.BACKGROUND_COLOR.replace('%h', this.hue);
gradient.addColorStop(0, backgroundColor.replace('%l', 30));
gradient.addColorStop(0.2, backgroundColor.replace('%l', 20));
gradient.addColorStop(1, backgroundColor.replace('%l', 5));
this.context.fillStyle = gradient;
this.context.fillRect(0, 0, this.width, this.height);
for (var i = this.snows.length - 1; i >= 0; i--) {
if (!this.snows[i].render(this.context)) {
this.snows.splice(i, 1);
}
}
this.hue += this.DELTA_HUE;
this.hue %= 360;
this.createSnow(this.SNOW_COUNT.DELTA, false);
}
};
var SNOW = function(width, height, center, toRandomize) {
this.width = width;
this.height = height;
this.center = center;
this.init(toRandomize);
};
SNOW.prototype = {
RADIUS: 20,
OFFSET: 4,
INIT_POSITION_MARGIN: 20,
COLOR: 'rgba(255, 255, 255, 0.8)',
TOP_RADIUS: {
MIN: 1,
MAX: 3
},
SCALE: {
INIT: 0.04,
DELTA: 0.01
},
DELTA_ROTATE: {
MIN: -Math.PI / 180 / 2,
MAX: Math.PI / 180 / 2
},
THRESHOLD_TRANSPARENCY: 0.7,
VELOCITY: {
MIN: -1,
MAX: 1
},
LINE_WIDTH: 2,
BLUR: 10,
init: function(toRandomize) {
this.setParameters(toRandomize);
this.createSnow();
if (
navigator.userAgent.match(
/(phone|pod|iPhone|iPod|ios|Android|Mobile|BlackBerry|IEMobile|MQQBrowser|JUC|Fennec|wOSBrowser|BrowserNG|WebOS|Symbian|Windows Phone)/i
)
) {
var box = document.querySelectorAll('.box')[0];
box.style.left = '42%';
}
},
setParameters: function(toRandomize) {
if (!this.canvas) {
this.radius = this.RADIUS + this.TOP_RADIUS.MAX * 2 + this.LINE_WIDTH;
this.length = this.radius * 2;
this.canvas = $('<canvas />').attr({
width: this.length,
height: this.length
}).get(0);
this.context = this.canvas.getContext('2d');
}
this.topRadius = this.getRandomValue(this.TOP_RADIUS);
var theta = Math.PI * 2 * Math.random();
this.x = this.center.x + this.INIT_POSITION_MARGIN * Math.cos(theta);
this.y = this.center.y + this.INIT_POSITION_MARGIN * Math.sin(theta);
this.vx = this.getRandomValue(this.VELOCITY);
this.vy = this.getRandomValue(this.VELOCITY);
this.deltaRotate = this.getRandomValue(this.DELTA_ROTATE);
this.scale = this.SCALE.INIT;
this.deltaScale = 1 + this.SCALE.DELTA * 500 / Math.max(this.width, this.height);
this.rotate = 0;
if (toRandomize) {
for (var i = 0, count = Math.random() * 1000; i < count; i++) {
this.x += this.vx;
this.y += this.vy;
this.scale *= this.deltaScale;
this.rotate += this.deltaRotate;
}
}
},
getRandomValue: function(range) {
return range.MIN + (range.MAX - range.MIN) * Math.random();
},
createSnow: function() {
this.context.clearRect(0, 0, this.length, this.length);
this.context.save();
this.context.beginPath();
this.context.translate(this.radius, this.radius);
this.context.strokeStyle = this.COLOR;
this.context.lineWidth = this.LINE_WIDTH;
this.context.shadowColor = this.COLOR;
this.context.shadowBlur = this.BLUR;
var angle60 = Math.PI / 180 * 60,
sin60 = Math.sin(angle60),
cos60 = Math.cos(angle60),
threshold = Math.random() * this.RADIUS / this.OFFSET | 0,
rate = 0.5 + Math.random() * 0.5,
offsetY = this.OFFSET * Math.random() * 2,
offsetCount = this.RADIUS / this.OFFSET;
for (var i = 0; i < 6; i++) {
this.context.save();
this.context.rotate(angle60 * i);
for (var j = 0; j <= threshold; j++) {
var y = -this.OFFSET * j;
this.context.moveTo(0, y);
this.context.lineTo(y * sin60, y * cos60);
}
for (var j = threshold; j < offsetCount; j++) {
var y = -this.OFFSET * j,
x
4.christmas3Dphoto-html.zip （17个子文件） 
christmas3Dphoto-html .vscode 
settings.json 40B js jquery.min.js 91KB sjzmd.mp3 3.67MB img 
05.png 21KB 02.png 23KB 3.png 292KB 04.png 21KB 01.png 21KB 03.png 21KB 1.png 292KB 6.png 292KB 5.png 292KB 4.png 292KB 2.png 311KB 06.png 21KB css style.css 4KB
index.html 9KB资源评论
