日期:2014-05-16 浏览次数:20364 次
require('coffee-script'); require('./chatroomserver');
fs = require 'fs' url = require 'url' html = fs.readFileSync __dirname + '/chatroom.html' jquery = fs.readFileSync __dirname + '/../js/jquery-1.7.1.min.js' coffeescript = fs.readFileSync __dirname + '/../js/coffee-script.js' server = require('http').createServer((req, res)-> pathname = url.parse(req.url).pathname res.end html if pathname == '/' res.end jquery if pathname == '/jquery.js' res.end coffeescript if pathname == '/coffee-script.js' ) server.listen 8080 nowjs = require 'now' everyone = nowjs.initialize server rooms = {} rooms['lobby'] = '大厅' rooms['room1'] = '房间1' rooms['room2'] = '房间2' rooms['room3'] = '房间3' onlineUsers = {} #所有在线用户 everyone.now.chckUser = (name, callback) -> #重点,使用异步方法调用 callback onlineUsers[name] != undefined #检查是否已有同名用户 everyone.now.initlize = -> @now.updateRooms rooms @now.room = 'lobby' onlineUsers[@now.username] = @user.clientId _lobby = nowjs.getGroup @now.room _lobby.addUser @user.clientId _lobby.now.receiveMessage "[SYS]#{@now.username} 进入#{rooms[@now.room]}, 欢迎!" updateRoomUser @now.room updateRoomUser = (roomid) ->#更新房间的用户 _users = [] _group = nowjs.getGroup roomid _group.getUsers (usersid) ->#用Group#getUsers(callback)方法 _users = [] _users.push _group['users'][userid]['now']['username'] for userid in usersid #重点:取group中的用户名,要注意group的结构 _group.now.updateOnlineUsers _users everyone.now.changeRoom = (newRoom) -> nowjs.getGroup(@now.room).removeUser(@user.clientId) nowjs.getGroup(@now.room).now.receiveMessage "[SYS]#{@now.username}离开#{rooms[@now.room]}进入#{rooms[newRoom]},再见!" updateRoomUser @now.room nowjs.getGroup(newRoom).addUser(@user.clientId) @now.room = newRoom nowjs.getGroup(newRoom).now.receiveMessage "[SYS]#{@now.username} 进入#{rooms[newRoom]},欢迎!" updateRoomUser newRoom everyone.disconnected ->#当断开连接时,触发 nowjs.getGroup(@now.room).now.receiveMessage "[SYS]#{@now.username}走了,再见!" nowjs.getGroup(@now.room).removeUser(@user.clientId) delete onlineUsers[@now.username] updateRoomUser @now.room everyone.now.distributePersonalMessage = (to, message) -> #私聊 self = @ #保存this _gruop = nowjs.getGroup(@now.room) _gruop.hasClient onlineUsers[to], (bool) -> #判断用户是否在线,使用回调函数 if bool self.now.receiveMessage "我对#{to}说:#{message}" nowjs.getClient onlineUsers[to], -> this.now.receiveMessage "#{self.now.username}对我说:#{message}"#重点:如何跟特定用户通信 else self.now.receiveMessage "[ERR]#{to}不在这个房间!" everyone.now.distributeMessage = (message) -> nowjs.getGroup(@now.room).now.receiveMessage(message);
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <title>聊天室</title> </head> <script type="text/javascript" src="/jquery.js"></script> <script src="/nowjs/now.js"></script> <script src="/coffee-script.js"></script> <script type="text/coffeescript"> now.receiveMessage = (message) -> $("div#talkFrame").append "<br>"+ message $(document).ready -> $('#login').click -> if $('#userName').val() == '' alert 'please input user name!' else now.chckUser $('#userName').val(), (exist)-> #重点:使用回调函数,异步调用的方式。 if exist