jquery实现五彩烟花喷射动画效果代码
代码语言:html
所属分类:动画
代码描述:jquery实现五彩烟花喷射动画效果代码
下面为部分代码预览,完整代码请点击下载或在bfwstudio webide中打开
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<script type="text/javascript" src="//repo.bfw.wiki/bfwrepo/js/jquery-3.2.1.min.js"></script>
<style>
html, body{
width: 100%;
height: 100%;
margin: 0;
padding: 0;
}
.container{
width: 100%;
height: 100%;
margin: 0;
padding: 0;
background-color: #000000;
}
</style>
</head>
<body>
<div id="jsi-fountain-container" class="container"></div>
<script>
var RENDERER = {
GRAVITY : 0.05,
BASE_RATE : 0.6,
OFFSET_RATE : 1 / 50,
PARTICLE_COUNT : 30,
init : function(){
this.setParameters();
this.setup();
this.reconstructMethods();
this.bindEvent();
this.render();
},
setParameters : function(){
this.$window = $(window);
this.$container = $('#jsi-fountain-container');
this.$canvas = $('<canvas />');
this.context = this.$canvas.appendTo(this.$container).get(0).getContext('2d');
this.particles = [];
this.fountains = [];
this.resizeIds = [];
},
setup : function(){
this.particles.length = 0;
this.fountains.length = 0;
this.resizeIds.length = 0;
this.width = this.$container.width();
this.height = this.$container.height();
this.$canvas.attr({width : this.width, height : this.height});
this.velocity = 1;
while(true){
var distance = 0,
velocity = this.velocity;
while(velocity >= 0){
velocity -= this.GRAVITY;
distance += velocity;
}
if(distance > Math.min(this.height * (this.BASE_RATE - this.OFFSET_RATE), 500)){
this.velocity--;
break;
}
this.velocity++;
}
this.gradient = this.context.createLinearGradient(0, this.height * this.BASE_RATE, 0, this.height);
this.gradient.addColorStop(0, 'hsla(210, 80%, 5%, 0.5)');
this.gradient.addColorStop(0.1, 'hsla(210, 80%, 5%, 0.8)');
this.gradient.addColorStop(1, 'hsla(210, 80%, 5%, 1)');
this.createElements();
},
createElements : function(){
for(var i = 0, count = this.PARTICLE_COUNT * this.width / 500 * this.height / 500; i < count; i++){
this.particles.push(new PARTICLE(this));
}
for(var i = -2; i <= 2; i++){
this.fountains.push(new FOUNTAIN(this, this.width / 2 + i * Math.max(250, this.width / 5), this.height * (this.BASE_RATE - this.OFFSET_RATE), i));
}
},
watchWindowSize : function(){
while(this.resizeIds.length > 0){
clearTimeout(this.resizeIds.pop());
}
this.tmpWidth = this.$window.width();
this.tmpHeight = this.$window.height();
this.resizeIds.push(setTimeout(this.jdugeToStopResize, this.RESIZE_INTERVAL));
},
jdugeToStopResize : function(){
var width = this.$window.width(),
height = this.$window.height(),
stopped = (width == this.tmpWidth && height == this.tmpHeight);
this.tmpWidth = width;
this.tmpHeight = height;
if(stopped){
this.setup();
}
},
reconstructMethods : function(){
this.watchWindowSize = this.watchWindowSize.bind(this);
this.jdugeToStopResize = this.jdugeToStopResize.bind(this);
this.render = this.render.bind(this);
},
bindEvent : function(){
this.$window.on('resize', this.wat.........完整代码请登录后点击上方下载按钮下载查看
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