jquery和css3實現的巴西里約奧運火炬效果

antzone發表於2017-04-18
jQueryCSSS3

分享一段程式碼例項，它模擬實現了巴西里約奧運會火炬效果。

程式碼例項如下:

[HTML] 純文字檢視 複製程式碼
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<meta name="author" content="http://www.softwhy.com/" />
<title>螞蟻部落</title>
<style>
* {
  transform-style: preserve-3d;
}
html,
body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background-color: #fff;
}
body {
  perspective: 600px;
}
.mainCircle {
  position: absolute;
  width: 200px;
  height: 200px;
  left: 50%;
  top: 50%;
  margin: -100px;
  border: solid 1px;
  border-radius: 50%;
}
.mainCircle .itemDom {
  width: 20px;
  height: 20px;
  border: solid 1px rgba(0, 0, 0, 0);
  border-radius: 50%;
  position: absolute;
  top: 50%;
  left: 50%;
  margin: -10px;
}
.mainCircle .itemDom .inside {
  width: 20px;
  height: 20px;
  animation: rotate 10s infinite linear;
}
.mainCircle .itemDom .inside .line {
  width: 1px;
  height: 100px;
  background-color: #000;
  position: absolute;
  top: 0px;
  left: 10px;
  transform-origin: 0px 10px;
}
.mainCircle .itemDom .inside .line:nth-child(1) {
  transform: rotate(0deg);
}
.mainCircle .itemDom .inside .line:nth-child(2) {
  transform: rotate(90deg);
}
.mainCircle .itemDom .inside .line:nth-child(3) {
  transform: rotate(180deg);
}
.mainCircle .itemDom .inside .line:nth-child(4) {
  transform: rotate(270deg);
}
.mainCircle .itemDom .inside .line .smallCircle {
  background-color: rgba(0, 0, 0, 0.2);
  border: solid 1px;
}
.mainCircle .itemDom .inside .line .smallCircle:nth-child(1) {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  transform: translate(80px) rotatex(90deg);
}
@keyframes rotate {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}
 
</style>
<script src="http://libs.baidu.com/jquery/1.9.0/jquery.js"></script>
<script src="//cdn.bootcss.com/hammer.js/2.0.8/hammer.min.js"></script>
<script>
$(function(){
        var hammertime = new Hammer($(document)[0]);
        var $mainCircle = $('.mainCircle');
        var rotate = {x:0,y:0};
        var x,y;
        hammertime.get('pan').set({ direction: Hammer.DIRECTION_ALL });
        hammertime.on('panmove',function(e){
                x = rotate.x+e.deltaX;
                y = rotate.y+e.deltaY;
                $mainCircle.css({
                        'transform':'rotateX('+(-y)+'deg) rotateY('+x+'deg)'
                })
        });
        hammertime.on('panend',function(e){
                rotate.x = x;
                rotate.y = y;
        });
         
        var length = 30;
        for(var i = 0;i < length; i++){
                var dom = '<div class="itemDom" style="transform:rotate('+i*360/length+'deg) translate(0,100px) rotateY(90deg)">';
                dom +=                        '<div class="inside" style="animation-delay:'+i*10/length+'s">';
                dom +=                           '<div class="line">';
                dom +=                                        '<div class="smallCircle"></div>';
                dom +=                                        '<div class="smallCircle"></div>';
                dom +=                                        '<div class="smallCircle"></div>';
                dom +=                                        '<div class="smallCircle"></div>';
                dom +=                           '</div>';
                dom +=                           '<div class="line">';
                dom +=                                        '<div class="smallCircle"></div>';
                dom +=                                        '<div class="smallCircle"></div>';
                dom +=                                        '<div class="smallCircle"></div>';
                dom +=                                        '<div class="smallCircle"></div>';
                dom +=                           '</div>';
                dom +=                           '<div class="line">';
                dom +=                                        '<div class="smallCircle"></div>';
                dom +=                                        '<div class="smallCircle"></div>';
                dom +=                                        '<div class="smallCircle"></div>';
                dom +=                                        '<div class="smallCircle"></div>';
                dom +=                           '</div>';
                dom +=                           '<div class="line">';
                dom +=                                        '<div class="smallCircle"></div>';
                dom +=                                        '<div class="smallCircle"></div>';
                dom +=                                        '<div class="smallCircle"></div>';
                dom +=                                        '<div class="smallCircle"></div>';
                dom +=                           '</div>';
                dom +=                         '</div>';
                dom +=                 '</div>';
                $mainCircle.append(dom);
        }
})
</script>
</head>
<body>
  <div class="mainCircle"></div>
</body>
</html>

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