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• Is the 'C' in MVC really necessary?

  - by Anne Nonimus

  I understand the role of the model and view in the Model-View-Controller pattern, but I have a hard time understanding why a controller is necessary. Let's assume we're creating a chess program using an MVC approach; the game state should be the model, and the GUI should be the view. What exactly is the controller in this case? Is it just a separate class that has all the functions that will be called when you, say, click on a tile? Why not just perform all the logic on the model in the view itself?

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• Pointless Code In Your Source

  - by Ali

  I've heard stories of this from senior coders and I've seen some of it myself. It seems that there are more than a few instances of programmers writing pointless code. I will see things like: Method or function calls that do nothing of value. Redundant checks done in a separate class file, object or method. if statements that always evaluate to true. Threads that spin off and do nothing of note. Just to name a few. I've been told that this is because programmers want to intentionally make the code confusing to raise their own worth to the organization or make sure of repeat business in the case of contractual or outsourced work. My question is. Has anyone else seen code like this? What was your conclusion was to why that code was there? If anyone has written code like this, can you share why?

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• Saving and Loading the Game (Automatically or Manually) via Internal Storage Only (Tablet PC Issues)

  - by David Dimalanta

  Here is my question. When making a game app for Android, I considered first the device. It's no problem to save progress everything (from levels to records) on a smartphone because it has an SD Card slot. Exception to this, the tablet PC, it can really nothing but on internal only storage. For example, I'm using this tutorial for audio spectrum (see http://www.youtube.com/watch?v=5cN1VzZXcdo) that involves copying from internal to external in order to detect frequency. It works on the desktop but not on the Android device (Tablets only [i.e. Google Nexus Tablet]). Is there a way to optimize save/load game problems due to internal/external device issues? Plus, additionally, what's the reason why my device won't work on tablets, except the desktop, while testing the audio spectrum code and why? Also, is it the same with saving/loading game?

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• How to Use a PS3 Controller as a Joystick for Your Windows PC

  - by Zainul Franciscus

  Do you find it hard to steer your mouse and hit the right keyboard key to play PC games? If you happen to have PS3 controllers, why not use them as Joysticks to play games? Image by AlphaCoders Before we begin, head over to MotionInJoy website to install the required drivers for Windows. The installer comes for both x86 (32-bit operating system) and x64 (64-bit operating system), so make sure you download the right installer for your system. If you are in doubt, just go to Start -> Control Panel –> System, to verify your system settings. HTG Explains: What Are Character Encodings and How Do They Differ?How To Make Disposable Sleeves for Your In-Ear MonitorsMacs Don’t Make You Creative! So Why Do Artists Really Love Apple?

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• How To Access the Developer Options Menu and Enable USB Debugging on Android 4.2

  - by Chris Hoffman

  In Android 4.2, the Developer Options menu and USB Debugging option have been hidden. If you need to enable USB Debugging, you can access the Developer Options menu with a quick trick. The developer options aren’t just used by developers. USB Debugging is required by adb, which is used for rooting an Android device, backing it up, installing a custom ROM, taking screenshots from a computer, or doing many other things. Why Does 64-Bit Windows Need a Separate “Program Files (x86)” Folder? Why Your Android Phone Isn’t Getting Operating System Updates and What You Can Do About It How To Delete, Move, or Rename Locked Files in Windows

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• Any valid reason to Nest Master Pages in ASP.Net rather than Inherit?

  - by James P. Wright

  Currently in a debate at work and I cannot fathom why someone would intentionally avoid Inheritance with Master Pages. For reference here is the project setup: BaseProject MainMasterPage SomeEvent SiteProject SiteMasterPage nested MainMasterPage OtherSiteProject MainMasterPage (from BaseProject) The debate came up because some code in BaseProject needs to know about "SomeEvent". With the setup above, the code in BaseProject needs to call this.Master.Master. That same code in BaseProject also applies to OtherSiteProject which is just accessed as this.Master. SiteMasterPage has no code differences, only HTML differences. If SiteMasterPage Inherits MainMasterPage rather than Nests it, then all code is valid as this.Master. Can anyone think of a reason why to use a Nested Master Page here instead of an Inherited one?

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• What happened to HTML table tags?

  - by John

  I started to code HTML in 1998, and in that time I was used to code a lot table tags, playing with tr and td, I learned many things analysing the source code of many portals on the internet with notepad and Microsoft FrontPage, the latter, aw, how many tables overlapping others, it was fun, I loved that time. However, I abandoned web programming for almost seven years and this year I decided to see what's the web programming today likes. Completely different, there are not table tags anymore, it's full of div and span tags. Why happened ? What are these new tags and why nobody codes in table tags anymore ?

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• Can someone explain to me C#'s coding convention?

  - by AedonEtLIRA

  I recently started working with Unity3D and primarily scripting with C#. As, I normally program in Java, the differences aren't too great but I still referred to a crash course just to make sure I am on the right track. However, My biggest curiosity with C# is that is capitalises the first letter its method names (eg. java: getPrime() C#: GetPrime() aka: Pascal Case?). Is there a good reason for this? I understand from the crash course page that I read that apparently it's convention for .Net and I have no way of ever changing it, but I am curious to hear why it was done like this as opposed to the normal (relative?) camel case that, say, Java uses. Note: I understand that languages have their own coding conventions (python methods are all lower case which also applies in this question) but I've never really understood why it isn't formalised into a standard.

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• Friday Fun: Swap It ET (Gears Game)

  - by Asian Angel

  This week’s game presents you with multiple puzzles to solve, each more challenging than the last. Throw in moving gears to muddle up the visual process and you have your hands full as you work to solve each one. Can you do it or will you be forced to give up in defeat? Why Does 64-Bit Windows Need a Separate “Program Files (x86)” Folder? Why Your Android Phone Isn’t Getting Operating System Updates and What You Can Do About It How To Delete, Move, or Rename Locked Files in Windows

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• HTG Explains: Does Your Android Phone Need an Antivirus?

  - by Chris Hoffman

  The media is full of reports saying Android malware is exploding and that Android users are at risk. Does this mean you should install an antivirus app on your Android phone or tablet? While there may be a lot of Android malware in the wild, a look at Android’s protections and studies from antivirus companies reveals that you’re probably safe if you follow some basic precautions. How To Use USB Drives With the Nexus 7 and Other Android Devices Why Does 64-Bit Windows Need a Separate “Program Files (x86)” Folder? Why Your Android Phone Isn’t Getting Operating System Updates and What You Can Do About It

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• "sudo cd ..." one-liner?

  - by j-g-faustus

  Occasionally I want to cd into a directory where my user does not have permission, so I resort to sudo. The obvious command sudo cd somedir doesn't work: $ sudo mkdir test $ sudo chmod go-rxw test $ ls -l drwx------ 2 root root [...snip...] test $ cd test -bash: cd: test: Permission denied $ sudo cd test sudo: cd: command not found Using sudo su works: $ sudo su # cd test Is it possible to make this into a one-liner? (Not a big deal, just idle curiosity :) The variations I tried didn't work: $ sudo "cd test" sudo: cd: command not found $ sudo -i cd test -bash: line 0: cd: test: No such file or directory $ sudo -s cd test The last one doesn't give an error, but it cd's within a new shell that exits by the end of the line, so it doesn't actually take me anywhere. Can someone enlighten me as to why this happens? Why is sudo cd not found, when for example sudo ls ... works fine?

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• The Effects of Caffeine [Video]

  - by Jason Fitzpatrick

  Whether in a cup, a can, or a little bottle, millions of us slug back caffeinated beverages everyday. Check out this video to see how it effects your brain and why it keeps you alert. Courtesy of Alex Dainis at Bite Sci-zed, we’re treated to a rather energetic look at the function of caffeine in the body. Caffeine!! – Bite Sci-zed [via Geeks Are Sexy] How To Delete, Move, or Rename Locked Files in Windows HTG Explains: Why Screen Savers Are No Longer Necessary 6 Ways Windows 8 Is More Secure Than Windows 7

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• How should programmers handle email-username identity theft?

  - by Craige

  Background I recently signed up for an iTunes account, and found that somebody had fraudulently used MY email to register their iTunes account. Why Apple did not validate the email address, I will never know. Now I am told that I cannot use my email address to register a new iTunes account, as this email address is linked to an existing account. This got be thinking... Question How should we as developers handle email/identity theft? Obviously, we should verify that an email address belongs to the person it is said to belong to. Why Apple did not do this in my case, I have no idea. But lets pretend we use email address for login/account identification, and something slipped though the cracks (be it our end, or the users). How should we handle reports of fraudulent accounts?

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• Normals vs Normal maps

  - by KaiserJohaan

  I am using Assimp asset importer (http://assimp.sourceforge.net/lib_html/index.html) to parse 3d models. So far, I've simply pulled out the normal vectors which are defined for each vertex in my meshes. Yet I have also found various tutorials on normal maps... As I understand it for normal maps, the normal vectors are stored in each texel of a normal map, and you pull these out of the normal texture in the shader. Why is there two ways to get the normals, which one is considered best-practice and why?

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• Huge difference between Facebook Ad Click figures and Apache log requests

  - by Gearóid

  We're running a facebook ad campaign for our business but there seems to be a huge discrepancy between the number of clicks registered and the number of requests made with "facebook.com" in the HTTP referrer. The difference can be anything between 40-80 clicks/requests. I understand why the Google Analytics would be off and I understand that the figures shouldnt be exactly the same but surely if 100 people click the ad then I should be seeing at least 90 requests for the homepage with facebook.com as the referrer? Can anybody provide any insight into why this may be happening?

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• MPEG-2 playback inconsistent

  - by DustByte

  Many years ago I gave up on Linux because video playback was choppy. Now I'm back, and video playback is still playing up... I have two MPEG files: good.mpg bad.mpg. Here is some information about the two files, using avprobe: My machine is Intel Core 2 Duo E8400 @ 3.00GHz x 2, 64-bit. I do not know what graphics card I have. I run Ubuntu 12.04. So far I have had no problems with YouTube and playback of various video files, including playback of the file good.mpg, included in the avprobe snapshot above. However, the file bad.mpg gives me headache! The file bad.mpg is produced by a respectable "Old-video-tapes-to-DVD" company. I converted over 10 Video-8 tapes to MPEG through them, and today I collected my hard drive containing the MPEG files. Unfortunately I have problem watching them! Here are some details: Using Totem Movie Player 3.0.1 works well for several seconds, then it gets choppy and the playback is not at all smooth. Also the player easily freezes for a while when trying to jump to another position in the file. Most strangely though, the total time is shown as 0:42 (42 seconds) instead of the true 00:39:11: The VLC media player is doing a better job. It shows the correct total length, but as soon as I jump in the video to a new position, it stalls. Playback also stalls after 30 seconds if I press play and leave it. Using Handbrake and choosing bad.mpg as the source, gives me: There is only one title to choose, and it is 6 min 53 seconds. I would have guessed the full 39 minutes of the video should have shown. Lastly, putting the file bad.mpg in Dropbox and viewing it on my iPad with the Dropbox app seems fine (disregard the lack of easy jumping forward due to real-time encoding when streaming it). My question is simple: What is going on?! Why do I have problem to play the MPEG-2 files I just paid good money for (the issue with bad.mpg applies to all files I had encoded)? Is it an issue with my particular Linux machine? The graphics card? But why has everything worked fine so far, and why does not the good.mpg file cause any problems?

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• Ouya build experiencing odd graphical artifacts, screen half black

  - by Neeko

  I'm witnessing very odd graphical artifacts when I run my Unity game on Ouya. After the Unity splash screen, the game loads with the screen half black. This seemingly has started occurring out of the blue. It also doesn't occur in the editor or the standalone build, only on Ouya. I can't think of a single reason why this would be happening. If I open the Ouya menu screen and close it, the game returns to normal; somewhat, as there may be some artifacts lingering but the screen isn't half black like in the screen shot above. I know there's not much to go off of, but any insight into why this may be happening is greatly appreciated.

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• Localization in php, best practice or approach?

  - by sree

  I am Localizing my php application. I have a dilemma on choosing best method to accomplish the same. Method 1: Currently am storing words to be localized in an array in a php file <?php $values = array ( 'welcome' => 'bienvenida' ); ?> I am using a function to extract and return each word according to requirement Method 2: Should I use a txt file that stores string of the same? <?php $welcome = 'bienvenida'; ?> My question is which is a better method, in terms of speed and effort to develop the same and why? Edit: I would like to know which method out of two is faster in responding and why would that be? also, any improvement on the above code would be appreciated!!

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• What does "context-free" mean in the term "context-free grammar"?

  - by rick

  Given the amount of material that tries to explain what a context-free grammar (CFG) is, I found it surprising that very few (in my sample, less than 1 in 20) give an explanation on why such grammars are called "context-free". And, to my mind, none succeeds in doing so. My question is, why are context-free grammars called context-free? What is "the context"? I had an intuition that the context could be other language constructs surrounding the currently analyzed construct, but that seems not to be the case. Could anyone provide a precise explanation?

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• Is creating a full application in Silverlight advisable?

  - by Anthony

  Is creating a huge public site fully in Silverlight really advisable? for eg. an ecommerce site. I don't want to start any debate but actually I feel Silverlight shouldn't be used for full website because the biggest loss you incur is of SEO. No search engines till today can parse the xap file and index it based on it's content. You can get around it by doing ifs and thens like if Silverlight is not supported then make an Asp.Net equivalent page for it but that only doubles our effort of making application, more than anything else. Why write double code in 2 applications meant for the same purpose. If that is the only option why not create Asp.Net application only. What are your views? Thanks in advance :)

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• Etymology of software project names [closed]

  - by Benoit

  I would like to have a reference community wiki here in order to know what etymology software name have or why they are named that way. I was wondering why Imagemagick's mogrify was named this way. Today I wondered the same for Apache Lucene. It would be handy to have a list here. Could we extend such a list? Let me start and let you edit it please. I will ask for this to be community wiki. For each entry please link to an external reference. GNU Emacs: stand for “Editor MACroS”. Apache Lucene: Armenian name Imagemagick mogrify: from “transmogrify”. Thanks.

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• What are the cons of using DrawableGameComponent for every instance of a game object?

  - by Kensai

  I've read in many places that DrawableGameComponents should be saved for things like "levels" or some kind of managers instead of using them, for example, for characters or tiles (Like this guy says here). But I don't understand why this is so. I read this post and it made a lot of sense to me, but these are the minority. I usually wouldn't pay too much attention to things like these, but in this case I would like to know why the apparent majority believes this is not the way to go. Maybe I'm missing something.

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• Do Limited Wi-Fi Channels Restrict Network Availability?

  - by Jason Fitzpatrick

  Wi-Fi protocol supports 13 communication channels; how do these channels relate to the volume of devices you can have on the network and the quality of the connection? Read on learn more about Wi-Fi channel usage. Today’s Question & Answer session comes to us courtesy of SuperUser—a subdivision of Stack Exchange, a community-drive grouping of Q&A web sites. Why Does 64-Bit Windows Need a Separate “Program Files (x86)” Folder? Why Your Android Phone Isn’t Getting Operating System Updates and What You Can Do About It How To Delete, Move, or Rename Locked Files in Windows

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• Ubuntu upgrade deleted my email accounts

  - by Johnt

  I'm a long term Ubuntu user and until today I have been really happy. I've always run Evolution and Thunderbird and after Ubuntu apparently upgraded me from 11.04 to 11.10 both my Evolution and Thunderbird programmes and all data / address books, messages and folders were deleted and I now have to create new accounts for both programmes. All my previous data is LOST. Thanks a lot guys. Why did this happen and why was there no warning given that this could be an issue ??? Is any of this recoverable ?

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• Update Manager offers 900+ updates under partial upgrade mode

  - by TriforceLZG

  Today I checked for updates and got an error message telling me I must do a partial upgrade. I was shocked to see how many updates there were available. 900+ Updates! By using synaptic I found out that it wanted to remove core packages from my system, such as compiz and python, but also update some as well. I am very confused why package manager would want to do this all of a sudden, and why it wants to destroy my system. I really need an answer, because I now cannot update my system.

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