nodeJs+express+soket.io如何实现五子棋

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window.onload=function(){

    var sence = document.getElementById('sence'),

        //棋盘大小

        ROW = 20,NUM = ROW*ROW,

        //场景宽度

        senceWidth = sence.offsetWidth,

        //每颗棋子的宽度

        blockWidth = Math.floor( (senceWidth-ROW)/ROW ) + 'px',

         //用户开始默认可以落子

        canDrop = true,

        //用户默认落子为白棋

        color = 'white',

        //两个字典，用来存放白棋和黑棋的已落子的位置；以坐标为建，值为true

        whiteBlocks = {},blackBlocks = {};

        console.log(sence);

//创建场景

(function (){

    var el,

    //在棋盘上画线

        rowline,

        colline;

    for ( var i = 0;i < ROW;i++){

        //按照计算好的间隔放置横线

        rowline = document.createElement('div');

        rowline.setAttribute('class','row');

        rowline.style.top= (senceWidth/ROW)/2 + (senceWidth/ROW)*i + 'px';

        sence.appendChild(rowline);

        //按照计算好的间隔放置竖线

        colline = document.createElement('div');

        colline.setAttribute('class','col');

        colline.style.left= (senceWidth/ROW)/2 + (senceWidth/ROW)*i + 'px';

        sence.appendChild(colline);

        for ( var j = 0;j < ROW;j++){

            el = document.createElement('div');

            el.style.width = blockWidth;

            el.style.height = blockWidth;

            el.setAttribute('class','block');

            el.setAttribute('id',i + '_' + j);

            sence.appendChild(el);

        }

    }

})();

console.log('1')

var id2Position = function(id){

    console.log(id)

    return {x:Number(id.split('_')[0]),y:Number(id.split('_')[1])};

};

var position2Id = function(x,y){

    return x + '_' + y;

};

console.log('abc');

//判断落子皇后该色其是否连5

var isHasWinner = function(id,dic){

    var x = id2Position(id).x;

    var y = id2Position(id).y;

    //用来记录横，竖，左斜，右斜方向的连续棋子数量

    var rowCount = 1,colCout = 1,leftSkewLineCount = 1,righeSkewlineCount = 1;

    //tx ty作为游标，左移，右移，上移，下移，左上，右下，左下，右上移动

    //每次数万某个方向的连续棋子后，游标会回到原点

    var tx,ty;

    //注意：一下判断5连以上不算成功，如果规则有变动，条件改为大于五就可以

    tx = x;ty = y;

    while(dic[ position2Id(tx,ty+1) ]){

        rowCount++;

        ty++;

    }

    tx = x;ty = y;

    while(dic[ position2Id(tx,ty-1) ]){

        rowCount++;

        ty--;

    };

    if( rowCount ==5 ) return true;

    tx = x;ty = y;

    while(dic[ position2Id(tx+1,ty) ]){

        colCout++;

        tx++;

    }

    tx = x;ty = y;

    while(dic[ position2Id(tx-1,ty) ]){

        colCout++;

        tx--;

    };

    if( colCout ==5 ) return true;

    tx = x;ty = y;

    while(dic[ position2Id(tx+1,ty+1) ]){

        leftSkewLineCount++;

        tx++;

        ty++;

    }

    tx = x;ty = y;

    while(dic[ position2Id(tx-1,ty-1) ]){

        leftSkewLineCount++;

        tx--;

        ty--;

    }

    if( leftSkewLineCount == 5){

        return true;

    }

    tx = x;ty = y;

    while(dic[ position2Id(tx-1,ty+1) ]){

        righeSkewlineCount++;

        tx--;

        ty++;

    }

    tx = x;ty = y;

    while(dic[ position2Id(tx+1,ty-1) ]){

        leftSkewLineCount++;

        tx++;

        ty--;

    }

    if( righeSkewlineCount == 5) return true;

    return false;

};

 //处理对手发送过来的信息；

//  var socket = io.connect('http://127.0.0.1:3100');

if (/Firefox\/\s/.test(navigator.userAgent)){

    var socket = io.connect('http://127.0.0.1:3100',{transports:['xhr-polling']});

}

else if (/MSIE (\d+.\d+);/.test(navigator.userAgent)){

    var socket = io.connect('http://127.0.0.1:3100',{transports:['jsonp-polling']});

}

else {

    var socket = io.connect('http://127.0.0.1:3100');

}

    socket.on('message',function(data){

        // console.log('data');

        canDrop = true;

        var el = document.getElementById(data.id);

        // console.log(el)

        el.setAttribute('has-one','true');

        if(data.color == 'white'){

            color = 'black';

            el.setAttribute('class','block white');

            whiteBlocks[data.id] = true;

             if(isHasWinner(data.id,whiteBlocks)){

                 alert('白棋赢了');

                 location.reload();//Location.reload() 方法用来刷新当前页面。该方法只有一个参数，当值为 true 时，将强制浏览器从服务器加载页面资源，当值为 false 或者未传参时，浏览器则可能从缓存中读取页面。

             }

            }else{

                 el.setAttribute('class','block black');

                 blackBlocks[data.id] = true;

                 if( isHasWinner(data.id,blackBlocks)){

                     alert('黑棋赢了');

                     location.reload();

                 }

             }

        });

        sence.onclick = function(e){

            // console.log('gyu')

             var el = e.target;//触发事件的对象 (某个DOM元素) 的引用。当事件处理程序在事件的冒泡或捕获阶段被调用时;

             if( !canDrop || el.hasAttribute('has-one') || el == this){//hasAttributes属性返回一个布尔值true或false,来表明当前元素节点是否有至少一个的属性

                return;

             }

             el.setAttribute('has-one','true');

             canDrop = false;

             var id = el.getAttribute('id');

             if(color == 'white'){

                 el.setAttribute('class','block white');

                 whiteBlocks[id] = true;

                 socket.emit('message',{id:id,color:'white'});//socket.emit('action',data);表示发送了一个action命令，还有data数据，在另一端接收时，可以这么写： socket.on('action',function(data){...});

                 if(isHasWinner(id,whiteBlocks)){

                     alert('白棋赢');

                     location.reload();

                 }

             }

             if( color == 'black'){

                 el.setAttribute('class','block black');

                 blackBlocks[id]=true;

                 socket.emit('message' , {id:id,color:'black'});

                 if(isHasWinner(id,blackBlocks)){

                     alert('黑棋赢了');

                     location.reload();

                 }

             }

     };

};

样式index.css

body{

    background: #4b4832;

    font-family: 微软雅黑;

    color: #666;

}

.sence{

    width: 600px;

    height: 600px;

    margin: 50px auto;

    border-right: none;

    border-bottom: none;

    position: relative;

    box-shadow: -10px 10px 15px black;

    background: #8d6d45;

    border: 2px solid black;

}

.sence .block{

    float: left;

    margin-right: 1px;

    margin-bottom: 1px;

    border-radius: 50%;

    position: relative;

    z-index: 8884;

}

.sence .row,.sence .col{

    background: #4d392b;

    position: absolute;

}

.sence .row{

    width:100%;

    height: 1px;

    top: 0;

}

.sence .col{

    width:1px;

    height: 100%;

    top: 0;

}

.white{

    background: #ffffff;

}

.black{

    background: #2c1d1b;

}

index.html:

<!DOCTYPE html>

<html>

<head>

    <meta charset="UTF-8">

    <meta name="viewport" content="width=device-width, initial-scale=1.0">

    <meta http-equiv="X-UA-Compatible" content="ie=edge">

    <title>五子棋</title>

    <link rel="stylesheet" href="./public/index.css">

</head>

<body>

    <div id="sence"></div>

    <script src="/public/socket.io.js"></script>

    <script src="/public/index.js" type="text/javascript" ></script>

</body>

</html>

服务端index.js

var express = require('express');

function(){ //ThinkMarkets智汇入金 http://www.kaifx.cn/question/kaifx/1819.html

var path = require('path');

var app = express()

var http = require('http').Server(app);

var io = require('socket.io')(http);

io.on('connection',function(socket){

    socket.on('message',function(data){

        socket.broadcast.emit('message',data);

    });

});

app.use('/public/',express.static(path.join(__dirname,'./public/')))

app.use('/node_modules/',express.static(path.join(__dirname,'./node_modules/')))

app.get('/',function(req,res){

    res.sendFile(__dirname +  '/index.html');

});

 http.listen(3100,function(){

     console.log('runing...')

 })

socket.io 兼容性代码：

if (/Firefox\/\s/.test(navigator.userAgent)){

    var socket = io.connect('http://127.0.0.1:3100',{transports:['xhr-polling']});

}

else if (/MSIE (\d+.\d+);/.test(navigator.userAgent)){

    var socket = io.connect('http://127.0.0.1:3100',{transports:['jsonp-polling']});

}

else {

    var socket = io.connect('http://127.0.0.1:3100');

}

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