这篇文章主要介绍了js面向对象之如何实现拼图游戏,小编觉得挺不错的,现在分享给大家,也给大家做个参考。一起跟随小编过来看看吧

一、html代码

<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>拼图小游戏</title> <style> body,td { margin:0; padding:0; } #begin { display:block; margin:20px auto; } table { margin:80px auto; background:#fff; border:10px solid pink; } td { width:100px; height:100px; border:1px solid #ccc; cursor:pointer; background:url(img.jpg) no-repeat; } </style> <script src="js.js"></script> <script> window.onload = function(){ var thisGame = new PinTuGame('begin'); } </script> </head> <body> <button id="begin">开始</button> </body> </html>

二、js代码

function PinTuGame(id){ var that = this; this.oBtn = document.getElementById(id); this.oTable = document.createElement('table'); this.oTbody = document.createElement('tbody'); this.aTd = null; this.aTdMsg = []; //用于存储每个图片的信息 this.num = 0; //用于判断拼图是否完成 this.oTable.cellSpacing = '0'; this.createElem(); //初始化游戏界面 this.oBtn.onclick = function(){ for(var i = 0; i<that.aTd.length; i++){ that.aTd[i].style.opacity = 1; } this.innerHTML = '重新开始'; that.aTd[that.aTd.length-1].style.opacity = 0; var iAlpha = 100; var sp = -10; var timer = setInterval(function(){ iAlpha += sp; that.oTbody.style.opacity = iAlpha / 100; if(iAlpha <=0) { sp = -sp; that.randomElem();} if(iAlpha > 100) {clearInterval(timer) }; },15); that.beginGame(); } } PinTuGame.prototype = { //初始化游戏界面 createElem: function(){ for(var i =0; i<4; i++){ var oTr = document.createElement('tr'); for(var j =0; j<4; j++){ var oTd = document.createElement('td'); this.num ++; var tdMsg = { seq: this.num, bgPosition: -100*j+'px '+ -100*i+'px' }; this.aTdMsg.push(tdMsg); oTr.appendChild(oTd); } this.oTbody.appendChild(oTr); } this.oTable.appendChild(this.oTbody); document.body.appendChild(this.oTable); this.aTd = this.oTbody.getElementsByTagName('td'); for(var i = 0; i<this.aTd.length; i++){ this.aTd[i].json = this.aTdMsg[i]; this.aTd[i].style.backgroundPosition = this.aTd[i].json.bgPosition; } }, randomElem: function(){ //随机排序图片 this.aTdMsg.sort(function (){ return Math.random()-0.5; }); for(var i=0;i<this.aTd.length;i++){ this.aTd[i].json = this.aTdMsg[i]; this.aTd[i].style.backgroundPosition = this.aTd[i].json.bgPosition; } }, beginGame: function(){ //开始游戏 var that = this; var rows = this.oTbody.rows; for(var i =0; i<4; i++){ for(var j =0; j<4; j++){ rows[i].cells[j].Y = i; rows[i].cells[j].X = j; rows[i].cells[j].onclick = function(){ var arr = [ //获取该图片的上右下左,四个方向的坐标 [this.Y-1, this.X], [this.Y, this.X+1], [this.Y+1, this.X], [this.Y, this.X-1] ]; for(var i = 0; i<arr.length; i++){ if( arr[i][0]<0 || arr[i][1]<0 || arr[i][0]>3 || arr[i][1]>3)continue; if( rows[arr[i][0]].cells[ arr[i][1] ].style.opacity == '0' ){ rows[arr[i][0]].cells[ arr[i][1] ].style.opacity = 1; this.style.opacity=0; //与隐藏的td交换json对象 var thisJson = this.json; this.json = rows[arr[i][0]].cells[ arr[i][1]].json; rows[arr[i][0]].cells[arr[i][1]].json = thisJson; //与隐藏的td交换bakcground-position this.style.backgroundPosition=this.json.bgPosition; rows[arr[i][0]].cells[arr[i][1]].style.backgroundPosition=rows[arr[i][0]].cells[arr[i][1]].json.bgPosition; } } that.checkWin(); }; } } }, checkWin: function(){ //检测游戏是否完成 var aJson = []; for(var i = 0; i<this.aTd.length; i++){ aJson.push(this.aTd[i].json.seq); } for(var i = 0; i<aJson.length-1; i++){ if(aJson[i]>aJson[i+1])return; } for(var i = 0; i<this.aTd.length; i++){ this.aTd[i].style.opacity = 1; } alert('恭喜,胜利啦!'); location.reload(); } }

二、游戏图片素材