Example sharing jQuery to implement puzzle game

  
 
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#box-p { position: relative; width: 508px; height: 631px; margin: 0 auto; } #container { width: 508px; height: 631px; margin: 0 auto; -webkit-box-sizing: border-box; -moz-box-sizing: border-box; box-sizing: border-box; border: 1px solid #d5e0e6; } #container > .row { display: -webkit-box; white-space: nowrap; } #container > .row > .unit { width: 169px; height: 209px; display: inline-block\9;/*兼容IE9/10*/ vertical-align: top\9;/*兼容IE9/10*/ box-sizing: border-box; border: 1px solid rgba(7, 157, 239, 0); } #container > .row > .unit.move { border: 1px solid rgba(7, 157, 239, 1); } #tips { width: 200px; height: 50px; background: rgb(152, 206, 50); position: absolute; z-index: 5; top: -50px; left: calc(50% - 100px); opacity: 0; } #tips > p { margin: 0; line-height: 50px; text-align: center; color: white; } .directions{ width:50%; margin:0 auto; text-align: center; line-height: 30px; color: white; background-color: #a7cbf0; }

$("#container>.row>.unit>img").each(function () { $(this).click(function (event) { event.stopPropagation(); $(".unit").removeClass("move"); $(this).parent(".unit").addClass("move"); }) }); move(".move","#tips"); function move(className,idName) { /* 提示信息 */ function tipsAlert(idName) { $(idName).animate({top: "0", opacity: "1"}, 500); setTimeout(function () { $(idName).animate({top: "-50px", opacity: "0"}, 800); }, 1000) } /* 上下左右按键移动 */ $(document).keydown(function (e) { var code = e.keyCode; if (code > 40 || code < 37) { return false; } var prev = $(className)[0].previousElementSibling;//选中元素前置位元素是否存在,以此判断元素是否还可以左右移动 var next = $(className)[0].nextElementSibling;//选中元素后置位元素是否存在,以此判断元素是否还可以左右移动 var paprev = $(className).parent()[0].previousElementSibling;//选中元素父级前置位元素是否存在，以此判断元素是否还可以上下移动 var panext = $(className).parent()[0].nextElementSibling;//选中元素父级后置位元素是否存在，以此判断元素是否还可以上下移动 var index = $(className).index();//根据选中元素的索引值，来确定上下移动时对换的位置 var movenp = $(className).next()[0];//以此确定上下对换元素添加方式 var movepp = $(className).prev()[0];//以此确定上下对换元素添加方式 switch (code) { case 37://左 if (prev) { $(className).insertBefore(prev); } else { tipsAlert(idName); } break; case 38://上 if (paprev) { var exchangeTop = $(paprev).children()[index]; $(className).insertBefore(exchangeTop); if (movenp) { $(exchangeTop).insertBefore(movenp); } else { $(exchangeTop).insertAfter(movepp) } } else { tipsAlert(idName); } break; case 39://右 if (next) { $(className).insertAfter(next); } else { tipsAlert(idName) } break; case 40://下 if (panext) { var exchangeBottom = $(panext).children()[index]; $(className).insertBefore(exchangeBottom); if (movenp) { $(exchangeBottom).insertBefore(movenp); } else { $(exchangeBottom).insertAfter(movepp) } } else { tipsAlert(idName); } break; } }); }