点击鼠标出现桃心的特效js

 1 (function(window,document,undefined){
 2 var hearts = [];
 3 window.requestAnimationFrame = (function(){
 4 return window.requestAnimationFrame ||
 5 window.webkitRequestAnimationFrame ||
 6 window.mozRequestAnimationFrame ||
 7 window.oRequestAnimationFrame ||
 8 window.msRequestAnimationFrame ||
 9 function (callback){
10 setTimeout(callback,1000/60);
11 }
12 })();
13 init();
14 function init(){
15 css(".heart{ 10px;height: 10px;position: fixed;background: #f00;transform: rotate(45deg);-webkit-transform: rotate(45deg);-moz-transform: rotate(45deg);}.heart:after,.heart:before{content: ''; inherit;height: inherit;background: inherit;border-radius: 50%;-webkit-border-radius: 50%;-moz-border-radius: 50%;position: absolute;}.heart:after{top: -5px;}.heart:before{left: -5px;}");
16 attachEvent();
17 gameloop();
18 }
19 function gameloop(){
20 for(var i=0;i<hearts.length;i++){
21 if(hearts[i].alpha <=0){
22 document.body.removeChild(hearts[i].el);
23 hearts.splice(i,1);
24 continue;
25 }
26 hearts[i].y--;
27 hearts[i].scale += 0.004;
28 hearts[i].alpha -= 0.013;
29 hearts[i].el.style.cssText = "left:"+hearts[i].x+"px;top:"+hearts[i].y+"px;opacity:"+hearts[i].alpha+";transform:scale("+hearts[i].scale+","+hearts[i].scale+") rotate(45deg);background:"+hearts[i].color;
30 }
31 requestAnimationFrame(gameloop);
32 }
33 function attachEvent(){
34 var old = typeof window.onclick==="function" && window.onclick;
35 window.onclick = function(event){
36 old && old();
37 createHeart(event);
38 }
39 }
40 function createHeart(event){
41 var d = document.createElement("div");
42 d.className = "heart";
43 hearts.push({
44 el : d,
45 x : event.clientX - 5,
46 y : event.clientY - 5,
47 scale : 1,
48 alpha : 1,
49 color : randomColor()
50 });
51 document.body.appendChild(d);
52 }
53 function css(css){
54 var style = document.createElement("style");
55 style.type="text/css";
56 try{
57 style.appendChild(document.createTextNode(css));
58 }catch(ex){
59 style.styleSheet.cssText = css;
60 }
61 document.getElementsByTagName('head')[0].appendChild(style);
62 }
63 function randomColor(){
64 return "rgb("+(~~(Math.random()*255))+","+(~~(Math.random()*255))+","+(~~(Math.random()*255))+")";
65 }
66 })(window,document);
67 
68  
69 
70 然后引入到具体的页面中即可