//this.nCol在這里是4 --- 因為我的拼圖是4*4
         // this.nArea是150，是每張圖片的寬，高（600px/4）--大圖是600*600
            var l = [],
                p = [];
            for(var n=0;n<this.nCol;n++){
                l.push(n*(this.nArea+1));     //生成[0,151,302,453] 網格的布局定位數組，因為我的效果需要邊框（圖中的綠色邊框），所以與css背景定位數組就不一樣了
                p.push(-n*this.nArea);         // 生成了[0,-150,-300,-450]就是上面說的，CSS背景定位值
            }
            for(var i=0;i<this.nLen;i++){   // this.nLen 是為 16  
　　　　　　          var t = parseInt(i/this.nCol),
                        k = i - this.nCol*t,
                        aP = [],
                        aL = [];
                    aP.push(p[k],p[t],i); //這里我給css背景定位數組額外加了i，是為第3步判斷用的，不需要拿來設置css屬性的，我把它設置為標簽的屬性里[bg-i]
                    aL.push(l[k],l[t]);
                    this.aBgp[i] = aP;
                    this.aLayout[i] = aL;               
            }

/*
    version:2.0
    */
    function GyPuzzleGame(option){
        this.target = $(option.target);
        this.data = option.data; //圖片數據
        this.opt = option;
        this.nLen = option.count; //多少張拼圖
        this.aColLayout = option.aColLayout || [0,151,302,453];//布局橫向數組
        this.aRowLayout = option.aRowLayout || [0,151];//布局豎向數組
        this.aColBgp = option.aColBgp || [0,-150,-300,-450];//布局橫向數組
        this.aRowBgp = option.aRowBgp || [0,-150];//布局豎向數組
        this.nCol = this.aColLayout.length;
        this.nRow = this.aRowLayout.length;
        this.aLayout = []; //布局數組
        this.aBgp = []; //css背景定位數組
        this.init();
    }
    GyPuzzleGame.prototype = {
        getRand:function(a,r){
            var arry = a.slice(0),
                newArry = [];
            for(var n=0;n<r;n++){
                var nR = parseInt(Math.random()*arry.length);
                newArry.push(arry[nR]);
                arry.splice(nR,1);
            }
            return newArry;
        },
        setPos:function(){
            for(var i=0;i<this.nLen;i++){               
                var t = parseInt(i/this.nCol),
                    l = i - this.nCol*t,
                    aP = [],
                    aL = [];
                aP.push(this.aColBgp[l],this.aRowBgp[t],i);
                aL.push(this.aColLayout[l],this.aRowLayout[t]);
                this.aBgp[i] = aP;
                this.aLayout[i] = aL;               
            }
        },
        isPass:function(item){
            var _that = this,
                is = 0;
            item.each(function(){
                var l = parseInt($(this).css('left')),
                    t = parseInt($(this).css('top')),
                    i = parseInt($(this).attr('data-bgi'));
                if(l==_that.aLayout[i][0]&&t==_that.aLayout[i][1]){
                    is ++;   
                }               
            });
            return is;
        },
        createDom:function(){
            var layout = this.getRand(this.aLayout,this.nLen);
            // console.log(layout);
            for(var n=0;n<this.nLen;n++){
                var t = parseInt(n/this.nCol),
                    l = n - this.nCol*t;
                var html = $('<div data-bgi="'+this.aBgp[n][2]+'" class="puzzle_list"></div>').
                css({'left':layout[n][0]+'px',
                    'top':layout[n][1]+'px',
                    'background-image':'url('+this.data+')',
                    'background-position':this.aBgp[n][0]+'px'+' '+this.aBgp[n][1]+'px'
                });
                this.target.append(html);
            }
        },
        move:function(){
            var $div = this.target.find('.puzzle_list'),
                _that = this;
            var    hasElem = function(){
                    var t = false;
                    $div.each(function(){
                        if($(this).hasClass("on")){
                            t = true;
                        }
                    });
                    return t;
                };
            // click
            $div.click(function(){
                var $this = $(this);   
                if(hasElem()&&!$this.hasClass("on")){
                    var index = $('.on').index();
                    if($div.eq(index).is(':animated')||$this.is(':animated')){
                        return false;
                    }
                    var l = $div.eq(index).position().left,
                        t = $div.eq(index).position().top,
                        myl = $this.position().left,
                        myt = $this.position().top;
                    $(this).animate({'left':l,'top':t});
                    $div.eq(index).css({'z-index':'1'}).animate({'left':myl,'top':myt},function(){
                            $(this).removeClass("on");
                            $(this).find('span').remove();
                            $(this).css({'z-index':'0'});
                            if(_that.isPass($div) == _that.nLen){
                                if(typeof _that.opt.success == 'function'){
                                    _that.opt.success({target:_that.target});
                                }
                            }
                    });
                }
                else {
                    if($this.hasClass("on")){
                        $this.removeClass("on");
                        $this.find('span').remove();
                    }
                    else {
                        $this.addClass("on").append("<span></span>");
                    }
                }
            });
        },
        init:function(){
            // 設置CSS背景定位與元素布局數組
            this.setPos();
            // 創建元素
            this.createDom();
            // 挪動圖片
            this.move();
        }
    }
//實例調用
    new GyPuzzleGame({
        'data':'images/03.jpg',
        'target':'#pA',
        'count':8,
        'success':function(opt){
            opt.target.append('<div class="puzzle_mask"></div><div class="puzzle_pass">恭喜過關</div>');
        }
    });