自己写了一个图片的马赛克消失效果(jQuery)

其中的一个效果:

html代码:

<h1>单击图片,产生效果</h1>
    <div class="box"></div>

插件代码:

; (function ($) {
            var defaults = {
                ani: 4, //动画效果.1.马赛克向中间聚拢,2.马赛克左上角聚拢,3.马赛克拉扯消失,4.原地缩小
                delay: 3000, //动画执行时间
                url:"0",//图片路径
                count: [20, 20]//马赛克水平数量,竖直方向数量;数量不能过多,否则计算量太大,计算机执行不了,导致浏览器卡死
            }
            $.fn.gysMaSaiKe = function (opt) {            
                opt = $.extend({}, defaults, opt);
                if(opt.url=="0"){alert("没有填写图片路径参数");return;}
                var obj = $(this);                               
                if (obj.css("position") == "static") obj.css({ "position": "relative" });
                obj.css("overflow","hidden");
                var objWidth = obj.width();
                var objHeight = obj.height();
                (function (count,url, obj) {
                    var littleBoxWidth = Math.floor(objWidth / count[0]);
                    var littleBoxHeight = Math.floor(objHeight / count[1]);                   
                    var html = "";
                    var littleBoxLeft = littleBoxWidth * (-1), littleBoxTop = littleBoxHeight * (-1);

                    for (var i = 0; i < count[1]; i++) {//行
                        littleBoxTop += littleBoxHeight;
                        for (var j = 0; j < count[0]; j++) {//每一行中的单个span
                            littleBoxLeft += littleBoxWidth;
                            html += "<span style='display:block;position:absolute;left:" + littleBoxLeft + "px;top:" + littleBoxTop + "px;" + littleBoxWidth + "px; height:" + littleBoxHeight + "px; background-image:url("+url+");background-position:" + (littleBoxLeft) * (-1) + "px " + (littleBoxTop) * (-1) + "px;'></span>";
                        }
                        littleBoxLeft = littleBoxWidth * (-1);
                    }
                    obj.html(html);
                })(opt.count,opt.url,obj);

                var animation = function (ani, delay, objs) {
                    var res = function () { }
                    if (ani == 1) {//马赛克向中间聚拢
                        res = function () {
                            objs.animate({ top: objHeight / 2, left: objWidth / 2, opacity: 0 }, delay);
                            setTimeout(function(){obj.html("");},delay);
                        }
                    }
                    else if (ani == 2) {//碎片向左上角聚拢消失
                        res = function () {
                            objs.animate({ left: 0, top: 0, opacity: 0 }, delay); setTimeout(function () { obj.html(""); }, delay);
                        }
                    }
                    else if (ani == 3) {//拉扯消失
                        res = function () {
                            objs.filter(":even").animate({top:-100,left:-100},delay);
                            objs.filter(":odd").animate({ top: -100, left:900}, delay);   setTimeout(function(){obj.html("");},delay);                         
                        }
                    }
                    else if (ani == 4) {//
                        res = function () { objs.animate({ height: 0,  0 }, delay);setTimeout(function(){obj.html("");},delay); }
                    }
                    else {
                        res = function () { objs.animate({ height: 0,  0 }, delay);setTimeout(function(){obj.html("");},delay); }
                    }
                    return res;
                } (opt.ani, opt.delay, obj.children());

                obj.on("click", "span", animation);
            }
        })(jQuery);

css代码:

  .box { width: 1000px; height:600px;}

插件的调用:

 $(function () {
            $(".box").gysMaSaiKe({
                count: [10, 15], //马赛克水平数量,竖直方向数量;数量不能过多,否则计算量太大,计算机执行不了,导致浏览器卡死
                ani: 4, //动画效果.1.马赛克向中间聚拢,2.马赛克左上角聚拢,3.马赛克拉扯消失,4.原地缩小
                delay: 5000, //动画执行时间
                url: "1.jpg" //图片路径
              });
        });