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  • Help for choosing a cost effective game server for Flash client

    - by Sapots Thomas
    I am developing a flash-based game primarily for desktops, to be hosted on facebook platform (like cityville, sims social etc). The gameplay doesn't involve real-time communication between players unlike an mmorpg. Here each player plays in his own world without any knowledge of other online players. I've written almost 95% of the game logic in actionscript on the client side. I used Smartfox Server pro on the server side (mostly used for getting data from the DB) and the entire server code is an extension written in java. I'm using json as the protocol for communication. Although I love smartfox server, as an indie, its tough for me to afford the unlimited users license. Morever its limited just to one machine. So I'm looking for an alternative to smartfox server now. The reason for choosing smartfox server earlier was to use the server properties supported by it. Server properties on smartfox server take advantage of the socket connection and are essentially server side objects in java which store some data for the player which he can change frequently during the game. And when he logs out of the game, the extension can write out the final state in the DB (I'm using MySQL). This significantly reduces the number of DB UPDATE/INSERT calls made during the game. I love the way this works since the data is secure as its on the server side and smartfox server is known to be scalable. (although I'm not sure whether this approach is used widely by gaming industry or not, since this is not an mmorpg, I'm putting all player in the lobby). So my question is whether any of the free and community supported servers like reddwarf, firebase, BlazeDS etc can provide a similar architecture so that I can use server properties without many code changes? EDIT : I am not insisting on the exact same feature (thats asking too much!), but atleast a viable messaging system on the server so that I can send actionscript objects from the client using json/binary so that its fast. OR maybe some completely different way to implement what I need here. Thanks in advance.

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  • What are the statuses in terms of popularity and ease of use for Qt's Webkit and Wt? [closed]

    - by Holland
    Are web frameworks like Wt and Qt's Webkit becoming a viable opportunity for C++ programmers to step into server side development for web applications through combining client-side JavaScript code with HTML/CSS and C++ for the backend? Disclaimer This is not to start a language holy war, with floods of opinions on why this or that is better, or shouldn't be used to produce web applications. I am merely looking for information in regards to these two frameworks, in terms of experience from people who have used these before and would be able to comment on it.

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  • Resources for Learning CSS [closed]

    - by historicus
    I am a server-side programmer that is proficient in Java. I have fairly good knowledge of client-side scripting - primarily Javascript - but my ability in CSS is lacking. While I have the know-how to modify basic styles, I'd like to understand a bit more about CSS layouts and styling. Can anyone with expert knowledge of CSS provide a good source for diving into the topic? Also, are there any short, online courses that might help in gaining the information I seek?

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  • Hypervisor

    <b>Datamation:</b> "A hypervisor is a software technology used in virtualization, which allows several operating systems to run side-by-side on a given piece of hardware."

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  • How to make changes in gconf-editor permanent

    - by Kristal
    Every time I open my computer, I need to manually unset the value of button_layout in gconf-editor in /apps/metacity/general to make to the close, minimize and maximize buttons on the right side of the window, but every time I restart my computer it changes back to the left side. I've tried to right-click the setting and choose "set as default" - but this doesn't work. How can I make this be permanent?

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  • Google Analytics - comparing metrics for different cities approach

    - by crmpicco
    I receive traffic from a number of different cities across the world, these being: Washington, Bratislava and Belfast. In Google Analytics, I would like to be able to compare a variety of metrics (side by side), however i'm not sure how to go about this in the best way. Am I looking at creating 3 advanced segments, 3 profiles or should I be doing it in one custom report? Or is this even possible in Google Analytics version 5?

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  • The .NET 4.5 async/await Commands in Promise and Practice

    The .NET 4.5 async/await feature provides an opportunity for improving the scalability and performance of applications, particularly where tasks are more effectively done in parallel. The question is: do the scalability gains come at a cost of slowing individual methods? In this article Jon Smith investigates this issue by conducting a side-by-side evaluation of the standard synchronous methods and the new async methods in real applications.

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  • How exactly is Google Webmaster Tools measuring "Site Performance"?

    - by Rémi
    I've been working for two months now on improving our response time (mainly server side) on a new forum (a brand new product on a technical point of view) we've launched in Germany a few month ago and I'm a lot surprised by the results I get. I monitor our response time using Apache logs and our own implementation of Boomerang beacon. Using my stats, I can see that our new product responds in about 680 ms where our old product was responding in about 1050 ms. On the other side, Google Webmaster Tool tells us that our pages have an average reponse time of about 1500 ms today where it was 700 three months ago with our old product. I've figured that GWT was taking client side metrics into account so I've added some measures on our Boomerang beacon and everything looks just fine. I've also ran some random pages on ySlow and Google's Page Speed and everything looks better than it was before. We event have a 82% on Google's Page Speed tool which is quite cool for a site with some ads in it :) Lately, we have signed a deal with Akamai to use two of their products : CDN for our static files (we were using another CDN before but it wasn't very effective) and RMA to improve Networks routes. We have also introduced a new agressive cache mecanism to ensure that most of the pages served to crawlers are cached by our memcache grid. After checking my metrics, it seems that this changes have improved from 650ms to about 500ms, which is good (still not great but it is definitly an improvement). But webmaster tools continues to report an increasing average response time where we see it decreasing in the same time. Have you ever had the same kind of wierd behavior on your sites while doing performance improvements ? Do you have any idea how to monitor the same thing Google does with Site Performance in Google Webmaster Tools so that we could improve our site and constantly check if it is what Google wants ? Edit 2011/07/26 : Thanks for your answers guys ! Nevertheless, I was not precise enough. The main issue we have is not with the Site Performance page but with the Crawl Stats one for now. We probably found an issue on our side with some very slow pages (around 3000 ms !!) and we are trying to fix them. I'll keep you posted as soon I'll have some infos. Thanks again !

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  • Customizing ASP.NET MVC 2 - Metadata and Validation

    In this article, you will learn about two major extensibility points of ASP.NET MVC 2, the ModelMetadataProvider and the ModelValidatorProvider. These two APIs control how templates are rendered, as well as server-side & client side validation of your model objects.

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  • Defensive Error Handling

    TRY…CATCH error handling in SQL Server has certain limitations and inconsistencies that will trap the unwary developer, used to the more feature-rich error handling of client-side languages such as C# and Java. In this article, abstracted from his excellent new book, Defensive Database Programming with SQL Server, Alex Kuznetsov offers a simple, robust approach to checking and handling errors in SQL Server, with client-side error handling used to enforce what is done on the server.

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  • What are the tools used by modern desktop/"native" application developers? [closed]

    - by kunjaa
    Besides the usual editor and debugger, what do the modern desktop (windows and linux) application developers use for their development. I am more interested in profilers, code analyzers, memory analyzers, packaging tools, GUI frameworks, libraries and any other handy tools and secrets that you couldnt live without. For example, as a web application developer, I have my Firebug and its extensions, Wireshark, jQuery and its extensions, client side and server side mvc frameworks, selenium tests, jsfiddle etc. Edit : Ok let us constrain this by saying you are using C++

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  • Gradle/NetBeans

    - by Geertjan
    The Gradle team (thanks Szczepan and others) fixed a crucial bug impacting, at least, NetBeans IDE and so now the Gradle/NetBeans plugin is coming along OK. Click to enlarge the screenshot and notice the dependencies and Gradle targets shown in the left side of the screenshot and the Groovy editor on the right hand side: Still lots of work to do, especially would like to have a Gradle file for NetBeans RCP projects, which Hans Dockter from the Gradle team is helping me with.

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  • Skype chat opens full screen and I can't get off it

    - by Aaron Welsh
    Skype was working perfect and then all of a sudden the chat box was full screen sized. Once you click on the Skype icon from the side bar it takes you straight to the full sized chat windows (By full sized I mean the side bar, top bar, and the programs close buttons disappear) I have uninstalled Skype and installed again but the issue is still occurring. I looked about but couldn't find an answer, thanks for any help!

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  • Ubuntu login failed to set mode on [CRTC:10] message

    - by polyglot0727
    I recently installed Windows Server 2003 and Ubuntu 12.10 side by side. Both worked ok for the first couple of boots. I can boot to Server, but am unable to boot to Ubuntu. I receive this message. ubuntu login: [ 18.684356 ] [drm:drm_crtc_helper_set_config] ERROR failed to set mode on [CRTC:10] [ 18.840839 [drm:drm_crtc_helper_set_config] ERROR failed to set mode on [CRTC:10]. Any idea what the issue is?

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  • You Already Are A Windows Phone 7 Programmer

    John Papa invited me on to Silverlight TV to discuss a key premise of WP7: Silverlight Programmers are instant WP7 programmers. To demonstrate this, I created two applications side by side: a traditional Silverlight (Web) application and a WP7 application using the same code. Ill go through this step by step here, so that you can [...]...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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  • Food For Tests: 7u12 Build b05, 8 with Lambda Preview b68

    - by $utils.escapeXML($entry.author)
    This week brought along new developer preview releases of the JDK and related projects. On the JDK 7 side, the Java™ Platform, Standard Edition 7 Update 12 Developer Preview Releases have been updated to 7u12 Build b05. On the JDK 8 side, as Mike Duigou announced on the lambda-dev mailing list, A new promotion (b68) of preview binaries for OpenJDK Java 8 with lambda extensions is now available at http://jdk8.java.net/lambda/. Happy testing!

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  • Gnome Shell Blank edge until restart?

    - by jtaillon
    Since I installed Gnome Shell (which I much prefer over Unity), there has been a small annoyance appearing on the right side of my screen. As you can see in the picture below, there is a blank few pixels on the right side of the screen. It goes away if I reload gnome-shell ("r" command), but obviously, I'd prefer that this is not necessary. I'm not sure what exactly is causing this, but was hoping someone might be able to help. I'm running Ubuntu 11.10 on a Lenovo Thinkpad Edge E420s

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  • MMO Web game mouse vs wasd

    - by LazyProgrammer
    If considering to develop a web browser based game with multiple people and it's an RPG, click to move would probably be the only choice in movement right? Because if you were to use WASD and then ajax to the server every second that a player held on to the WASD key, that'd be pretty resource intensive if the server had to calculate the position and return the map image, assuming the next few screens are already buffered right? or is there a way to implement a WASD style and still have server side do all the calculations. (server side calculations to avoid cheating)

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  • JavaOne 2011 - Moscow and Hyderabad Editions

    - by Cassandra Clark
    Connect with Java developers at JavaOne - JavaOne will be held in Moscow, April 12-13th, 2011 and again in Hyderabad, May 10th - 11th, 2011. Enjoy two days of technical content and hands-on learning focused on Java and next-generation development trends and technologies, including rich enterprise applications (REAs), service-oriented architecture (SOA), and the database.JavaOne Moscow Tracks - Java EE, Enterprise Computing, and the CloudJava SE, Client Side Technologies, and Rich User ExperiencesJava ME, Mobile, and EmbeddedJavaOne Hyderabad Tracks - Core Java PlatformJava EE, Enterprise Computing, and the CloudJava SE, Client Side Technologies, and Rich User ExperiencesJava ME, Mobile, and EmbeddedRegister Now for JavaOne Moscow!Register Now for JavaOne Hyderabad!

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  • how to use gparted to partion 2 drives as 1

    - by user281745
    I have my lenovo t43 and I have a SATA extra HD drive instead of the CD drive and I have in it a 250 GB hard drive and in my HD caddy I have a 40 GB hard drive I would like to use gparted to partition these 2 drives as 1 i would like to have the 250 GB as a extended part of the 40 GB cause i already have Ubuntu Installed on it, they are right now not side by side im not sure how to do this so please list by step by step thank you http://imgur.com/dE0B7dy,qRRPgoB http://imgur.com/dE0B7dy,qRRPgoB#1

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  • The Expectations of RIA Technologies in the Coming Future

    A rich Internet application (RIA) is a web application designed to distribute the features and functions usually connected with desktop applications. RIAs commonly divide the dispensation across the Internet and network segregate by locating the user interface and related activity and capability on the client side, and the data manipulation and operation on the application server side.

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  • How to tell two windows of the same program apart? [closed]

    - by john mossel
    Possible Duplicate: Disable joining multiple windows to one icon in unity panel If I have two vlc players open, I have to go to the sidebar and click on the vlc icon, then pick which one I want (it does this cool effect where it shows you both windows side by side-- as great as that is, it gets bloody annoying after a while). Is there not an easier way of doing this? Is there no possibility of reverting back to the old system?

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  • Offline web app options

    - by L. De Leo
    For a game web app that runs Python on the server side and Javascript / HTML on the client side I'd like to build an offline version that runs in Chrome and on the mobile devices. What is the most convenient way currently available to target Chrome, Win 8 Desktop (with a Win packaged app) and the mobile devices reusing most of the code? Options could be PhoneGap for the mobile devices and PyJs for the offline browser versions or maybe translate Python to Dart manually (because of the closer semantics of the two languages) and compile to Javascript.

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  • Collision detection problem in XNA

    - by Fantasy
    I'm having two problems with my collision detection in XNA. There are two boxes, the red box represents a player and the blue box represents a wall. The first problem is when the player moves to the upper side or bottom side of the wall and collides with it, and then try to go to the left or right, the player will just jump in the opposite direction as seen in the video. However if I go to the right side or the left side of the wall and try to go up or down the player will smoothly go up or down without jumping. The second problem is that when I collide with the box and my key is still pressed down the blue box goes half way through red box and and goes back out and it keeps doing that until I stop pressing the keyboard. its not very clear on the video but the keeps going in and out really fast until I stop pressing the key. Here is a video example:- http://www.youtube.com/watch?v=mKLJsrPviYo and Here is my code Vector2 Position; Rectangle PlayerRectangle, BoxRectangle; float Speed = 0.25f; enum Direction { Up, Right, Down, Left }; Direction direction; protected override void Update(GameTime gameTime) { // Allows the game to exit if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed) this.Exit(); KeyboardState keyboardState = Keyboard.GetState(); if (keyboardState.IsKeyDown(Keys.Up)) { Position.Y -= (float)(Speed * gameTime.ElapsedGameTime.TotalMilliseconds); direction = Direction.Up; } if (keyboardState.IsKeyDown(Keys.Down)) { Position.Y += (float)(Speed * gameTime.ElapsedGameTime.TotalMilliseconds); direction = Direction.Down; } if (keyboardState.IsKeyDown(Keys.Right)) { Position.X += (float)(Speed * gameTime.ElapsedGameTime.TotalMilliseconds); direction = Direction.Right; } if (keyboardState.IsKeyDown(Keys.Left)) { Position.X -= (float)(Speed * gameTime.ElapsedGameTime.TotalMilliseconds); direction = Direction.Left; } if (PlayerRectangle.Intersects(BoxRectangle)) { if (direction == Direction.Right) Position.X = BoxRectangle.Left - PlayerRectangle.Width; else if (direction == Direction.Left) Position.X = BoxRectangle.Right; if (direction == Direction.Down) Position.Y = BoxRectangle.Top - PlayerRectangle.Height; else if (direction == Direction.Up) Position.Y = BoxRectangle.Bottom; } PlayerRectangle = new Rectangle((int)Position.X, (int)Position.Y, (int)32, (int)32); base.Update(gameTime); }

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  • Examples of different architecture methodologies

    - by Lane
    Is there a resource or site which illustrates building the same application (desktop or web) using several different contrasting architectures? Such as MVP versus MVVM versus MVC, etc. It would be very helpful to see how they look side-by-side using real-world code instead of comparing written theory to written theory. I've often found that something can be described well in a book, but when you go to implement it, the subtleties and weaknesses of the theory become readily apparent.

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