[ web000 @ 11.05.2012. 12:06 ] @
Uveliko se prica o html5 i js za pravljenje jednostavnijih igara ali sa socket.io komunikacijom sa serverom jer u tom slucaju se omogucuje realtime igranje multiplayer... Ja sam uradio neki algoritam pa bih voleo ako je moguce ovde da svi zajedno pokusamo da uradimo po nesto kako bi unapredili svoja znanja tj. kao neki tutorial kako bi svi ovde razumeli o cemu se radi kaka se kaze socket.io Radi se o sledecem. Da pokusamo da uradimo igru ili barem da unapredimo algoritam ... Dva su takmicara, jedan zaustavlja slova a obojica dobijaju nasumicno odbrana slova da sastave sto duzu rec. Ko sastavi duzu rec on je pobednik i dobija poene. [att_img]http://i.stack.imgur.com/ZirwO.jpg[att_img] Evo pomoci a to je server side i klijent side programski kod JS za pravljenje jednostavnog chata cisto za pocetak da se razume osnova socket.io-a Code: var app = require('express').createServer() var io = require('socket.io').listen(app); app.listen(8080); // routing app.get('/', function (req, res) { res.sendfile(__dirname + '/index.html'); }); // usernames which are currently connected to the chat var usernames = {}; io.sockets.on('connection', function (socket) { // when the client emits 'sendchat', this listens and executes socket.on('sendchat', function (data) { // we tell the client to execute 'updatechat' with 2 parameters io.sockets.emit('updatechat', socket.username, data); }); // when the client emits 'adduser', this listens and executes socket.on('adduser', function(username){ // we store the username in the socket session for this client socket.username = username; // add the client's username to the global list usernames[username] = username; // echo to client they've connected socket.emit('updatechat', 'SERVER', 'you have connected'); // echo globally (all clients) that a person has connected socket.broadcast.emit('updatechat', 'SERVER', username + ' has connected'); // update the list of users in chat, client-side io.sockets.emit('updateusers', usernames); }); // when the user disconnects.. perform this socket.on('disconnect', function(){ // remove the username from global usernames list delete usernames[socket.username]; // update list of users in chat, client-side io.sockets.emit('updateusers', usernames); // echo globally that this client has left socket.broadcast.emit('updatechat', 'SERVER', socket.username + ' has disconnected'); }); }); i klijent side starana: Code: <script src="/socket.io/socket.io.js"></script> <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.6.4/jquery.min.js"></script> <script> var socket = io.connect('http://localhost:8080'); // on connection to server, ask for user's name with an anonymous callback socket.on('connect', function(){ // call the server-side function 'adduser' and send one parameter (value of prompt) socket.emit('adduser', prompt("What's your name?")); }); // listener, whenever the server emits 'updatechat', this updates the chat body socket.on('updatechat', function (username, data) { $('#conversation').append('<b>'+username + ':</b> ' + data + '<br>'); }); // listener, whenever the server emits 'updateusers', this updates the username list socket.on('updateusers', function(data) { $('#users').empty(); $.each(data, function(key, value) { $('#users').append('<div>' + key + '</div>'); }); }); // on load of page $(function(){ // when the client clicks SEND $('#datasend').click( function() { var message = $('#data').val(); $('#data').val(''); // tell server to execute 'sendchat' and send along one parameter socket.emit('sendchat', message); }); // when the client hits ENTER on their keyboard $('#data').keypress(function(e) { if(e.which == 13) { $(this).blur(); $('#datasend').focus().click(); } }); }); </script> <div style="float:left;width:100px;border-right:1px solid black;height:300px;padding:10px;overflow:scroll-y;"> <b>USERS</b> <div id="users"></div> </div> <div style="float:left;width:300px;height:250px;overflow:scroll-y;padding:10px;"> <div id="conversation"></div> <input id="data" style="width:200px;" /> <input type="button" id="datasend" value="send" /> </div> |