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app.js
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app.js
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/**
* Module dependencies.
*/
var express = require('express')
, routes = require('./routes')
, nowjs = require('now')
var app = module.exports = express.createServer();
// Configuration
app.configure(function(){
app.set('views', __dirname + '/views');
app.set('view engine', 'jade');
app.use(express.bodyParser());
app.use(express.methodOverride());
app.use(require('stylus').middleware({ src: __dirname + '/public' }));
app.use(app.router);
app.use(express.static(__dirname + '/public'));
});
app.configure('development', function(){
app.use(express.errorHandler({ dumpExceptions: true, showStack: true }));
});
app.configure('production', function(){
app.use(express.errorHandler());
});
// Routes
app.get('/', routes.index);
app.listen(3000);
console.log("Express server listening on port %d in %s mode", app.address().port, app.settings.env);
// nowjs setup
var everyone = nowjs.initialize(app);
var actors = [];
// what happens on connect
nowjs.on('connect', function() {
// map setup
actors[this.user.clientId] = {x: 0, y: 0};
console.log("user connected: " + this.user.clientId);
// chat room setup
this.now.room = "room 1";
nowjs.getGroup(this.now.room).addUser(this.user.clientId);
console.log(this.user.clientId + " joined: " + this.now.name);
});
// what happens on disconnect
nowjs.on('disconnect', function() {
for(var i in actors) {
if(i == this.user.clientId) {
delete actors[i];
console.log(this.user.clientId + " left: " + this.now.name);
break;
}
}
});
// when an actor updates here is what happens
everyone.now.updateActor = function(x, y) {
console.log("user: " + this.user.clientId + " moved to ("+ x + ", " + y + ")");
actors[this.user.clientId].x = x;
actors[this.user.clientId].y = y;
var toUpdate = {};
for(var i in actors) {
if(Math.abs(x - actors[i].x) < 310 && Math.abs(y - actors[i].y) < 210) {
toUpdate[i] = {x: actors[i].x, y: actors[i].y};
}
}
for(var i in toUpdate) {
nowjs.getClient(i, function(err) {
this.now.drawActors(toUpdate);
});
}
}
// when a user changes group, lets show it
everyone.now.changeRoom = function(newRoom){
nowjs.getGroup(this.now.room).removeUser(this.user.clientId);
nowjs.getGroup(newRoom).addUser(this.user.clientId);
this.now.room = newRoom;
this.now.receiveMessage("SERVER", "You're now in " + this.now.room);
}
// make sure to send chat where it's needed
everyone.now.distributeMessage = function(message){
nowjs.getGroup(this.now.room).now.receiveMessage(this.now.name, message);
};
// only send the map updates to the people in the room
everyone.now.distributeVoxelInfo = function(posX, posY, posZ, isCtrlDown){
console.log("user: " + this.user.clientId + " added a voxel x: " + posX + " y: " + posY + " z: " + posZ + " ctrlPressed: " + isCtrlDown);
nowjs.getGroup(this.now.room).now.receiveVoxelInfo(posX, posY, posZ, isCtrlDown);
};