本文实例为大家分享了js实现拼图小游戏的具体代码，供大家参考，具体内容如下
一、js拼图是什么？
用js做得小游戏
二、使用步骤
1、先创建div盒子
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<style> div,body{ margin: 0; height: 0; } #box{ width: 800px; height: 800px; background-color: burlywood; position: relative; } #box div { width: 200px; height: 200px; background: url(./imgs/bg.jpg) no-repeat; position: absolute; } </style></head><body> <div id="box"></div></body> |
2.写js
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<script> // 获取标签 var box = document.getElementById("box"); var arrs = []; // 循环创建16个对象，添加到数组中 for(var i = 0; i < 4; i++){ for(var j = 0; j < 4; j++){ var divNode = document.createElement("div") divNode.style.top = 200 * i + "px" divNode.style.left = 200 * j + "px" // 创建对象 var pox = { left: 200* i, top:200*j, } // 创建好的对象添加到数组里 if( i !== 3 || j !== 3 ){ arrs.push(pox) }else{ divNode.style.background = "none"; divNode.className = "space" } box.appendChild(divNode) } } console.log(arrs); // 随机抽取对象 for(var i = 0; i < 15; i++){ var ranNum = parseInt(Math.random() * (15 - i)) var x = arrs[ranNum].left; var y = arrs[ranNum].top; box.children[i].style.backgroundPosition = - x + "px "+ - y + "px"; arrs.splice(ranNum,1); } // 键盘事件 document.onkeyup = function(event) { // 得到按的那个键 var key = event.keyCode // 上 if (key == 38) { var x = box.querySelector(".space").style.left var y = box.querySelector(".space").style.top for (var i = 0; i < 16; i++) { if (parseInt(box.children[i].style.top) == parseInt(y) - 200 && parseInt(box.children[i].style.left) == parseInt(x)) { box.children[i].style.top = y box.querySelector(".space").style.top = parseInt(y) - 200 + "px" } } // 下 }else if (key == 40) { var x = box.querySelector(".space").style.left var y = box.querySelector(".space").style.top // 遍历所有小div，找到空白上面得那张 赋值 为y for(var i = 0; i < 16; i++){ if (parseInt(box.children[i].style.top) == parseInt(y) + 200 && parseInt(box.children[i].style.left) == parseInt(x)) { box.children[i].style.top = y box.querySelector(".space").style.top = parseInt(y) + 200 + "px" } } // 左 }else if (key = 38) { var x = box.querySelector(".space").style.left var y = box.querySelector(".space").style.top for (var i = 0; i < 16; i++) { if (parseInt(box.children[i].style.left) == parseInt(x) - 200 && parseInt(box.children[i].style.top) == parseInt(y)) { box.children[i].style.left = x box.querySelector(".space").style.left = parseInt(x) - 200 + "px" } } // 右 }else if (key = 39) { var x = box.querySelector(".space").style.left var y = box.querySelector(".space").style.top for (var i = 0; i < 16; i++) { if (parseInt(box.children[i].style.left) == parseInt(x) + 200 && parseInt(box.children[i].style.top) == parseInt(y)) { box.children[i].style.left = x box.querySelector(".space").style.left = parseInt(x) + 200 + "px" } } } }</script> |
效果图
完成效果图
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持服务器之家。
原文链接：https://blog.csdn.net/weixin_46876311/article/details/114737802
