随机生成游戏用户昵称（nodejs版本）（含机器人头像，金币等）

var nickNameArr = [];

function initNickName(){

    var dirname =__dirname;

    var nickname00 = fs.readFileSync(dirname+"/res/nickname00.txt","utf-8");

    //把换行的都全局替换成空格，然后按空格分割为数组

    var rn00 = nickname00.replace(/\r\n/g," ");

    var nameArr00 = rn00.split(' ');

    nickNameArr = [].concat(nameArr00);

    console.log("nickNameArr length=",nickNameArr.length);

}

function genName(){

    var name = "";

    var len =nickNameArr.length;

    if(len > 0){

        var pos = Math.floor(Math.random()*len);

        name = nickNameArr[pos];

        if(name.length == 0){ //防止拿到空白值，正常情况不会出现

            genName();

        }

    }

    return name;

}

//nickname00文本格式为每个昵称中间空一格或者换行，例子如下：

昵称1 昵称2 昵称3

nk1 nk2

nk3

昵称x

nk4

function genHeadimg(){

    var url_img = "";

    var path = "./public/images/headImages/";

    //实际使用用域名，内部测试ip如下

    var ip = "127.0.0.1";

    //如果有端口就写，如果没有，跳过

    var port = "8888";

    var path_link = "http://"+ip + ":" + port + "/public/images/headImages/";

    var files = fs.readdirSync(path);

    var len = files.length;

    var randNum = Math.floor(Math.random()*len);

    var url_img = path_link + files[randNum];

    console.log("genHeadimg rand link=",url_img);

    return url_img;

}