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• What frameworks are available for cross device 2d game development?

  - by kim3er

  Hi, I'm about to embark on a 2D gaming project. Initially, I'll be targeting iPhone and Facebook, but would like to expand the rollout to include Android (and possibly Windows Phone) in a future phase. Flash and Unity seem to be the most likely suspects, but is one better than the other? Are there pros/cons that may not be obvious at first glance? Are there frameworks that I have not considered? I am primarily a .NET developer, so the Unity C# integration is appealling. But I also have experience with AS3, JavaScript and Objective-C. Rich

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• Icon zoom on gnome panel with mouseover?

  - by brent.with.a.mustache

  I'm actually quite surprised that I couldn't find any information regarding this question through simple google-ing; I would think that it was something of a no-brainer kind of question. I'm basically trying to figure out if there's any way to have the icons in the side panel/favorites bar magnify as you mouseover them, much like you'd see in any the popular launcher programs (i.e. rocket dock or apple's launcher)? I'm on a netbook with a rather limited amount of screen real estate to work with, so the icons depicting my "favorite applications" have been reduced to a permanent, unsatisfying handful of pixels. Again, it seems to me that this should be a fairly obvious feature to include in the options for the panel, so I'm hoping that there's an easy solution. Unfortunately, I haven't found any way to make this happen, so any help would be appreciated. Here's a screenshot :squint: http://i.imgur.com/OpMIF.jpg -- ubuntu 11.10; gnome 3; hp mini 110

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• Any significant performance cost to using BlendState.Premultiplied?

  - by Donutz

  Normally I guess you'd use BlendState.AlphaBlend because normally when you load your textures through the pipeline they're already premultiplied. However, if you're loading textures at runtime from PNGs or some such, you have to loop through the pixels and premultiply them, which can take a long time if you've got a lot of textures to load. So it looks (haven't tried it) like using BlendState.Premultiplied instead of BlendState.AlphaBlend should handle non-premultiplied textures and produce the same visual result, without all the startup costs. I have to wonder if there's a non-obvious cost to doing this, like a huge drop in performance or something. Anyone know?

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• Alsa version numbers not consistent

  - by user69245

  I've recently moved from 10.04 to 12.04 and have problems with crackles on audio when the screen changes (especially obvious in a Skype conversation with video). !!Kernel Information !!------------------ Kernel release: 3.2.0-26-generic-pae Operating System: GNU/Linux Architecture: i686 Processor: i686 SMP Enabled: Yes !!ALSA Version !!------------ Driver version: 1.0.24 Library version: 1.0.25 Utilities version: 1.0.25 Running through the SoundTroubleShooting procedures I got the above details at Step 3. Is the mismatch between the Driver version (1.0.24) and the Library and Utilities versions (1.0.25) the cause of my problem, or should I be looking elsewhere? In answers to the question "Will ALSA 1.0.25 version have time to enter 12.04?" I read that 1.0.25 would be part of the new kernel, but my kernel version appears to be newer than the original release.

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• Great Java EE Concurrency Write-up!

  - by reza_rahman

  As you are aware JSR-236, Concurrency Utilities for the Java EE platform, is now a candidate for addition into Java EE 7. While it is a critical enabling API it is not necessarily obvious why it is so important. This is especially true with existing features like EJB 3 @Asynchronous, Servlet 3 async and JAX-RS 2 async. On his blog DZone MVB Sander Mak does an excellent job of explaining the motivation and importance of JSR-236. Perhaps even more importantly, he discusses potential issues with the API such alignment with CDI and Java SE Fork/Join. Read the excellent write-up here!

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• Frequent GUI pauses in Ubuntu 13.04 / Unity / Intel HD4000

  - by Simon

  I'm experiencing very frequent (and regular) GUI pauses on my system. Every 30 seconds (pretty much exactly) the GUI will freeze for maybe .25 to .5 seconds. The mouse stops moving, keys stop echoing and a stopwatch timer briefly pauses. I'm using the Intel Graphics driver available from: https://download.01.org/gfx/ubuntu/13.04/main I've looked in a few places and tried a few things for a solution: I've checked cron and anacron for scheduled processes. I've disabled background processes (eg mysql, postgres, apache) not that these were doing anything anyway I've checked the following posts and tried the suggestions there: Unity GUI pauses/freezes for less than a few seconds How to go about troubleshooting frequent system pauses I've watched the system using top and System Monitor and there are no spikes (or even blips) of cpu usage when the pauses occur. There are no obvious error messages in dmesg or syslog There is loads of free RAM (8GB+) and no swap usage If it helps it's a ZooStorm i5 laptop with a HD4000 GPU, 16GB Ram and an SSD. Any help / suggestions would be very gratefully received.

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• Should you document everything or just most?

  - by TheLQ

  It seems a bit of a controversial subject to document everything, including the "JavaBean" syntax of getters and setters for fields: People say its needlessly long and repetitive breaking DRY (don't repeat yourself), that the naming convention should explain everything, and it clutters code/documentation. Sometimes those arguments work. But other times, you end up with this: Above is common to open source projects that do boldly follow those principles. Your left with entirely useless documentation. That doesn't explain anything about whats going on underneath, the possible effects, or even what the expected value is (could it be null or never null? I don't know, the Javadoc doesn't tell me). So when should I document? Do I document everything even if it occasionally clutters code? Or do I document nothing since in my eyes its "obvious"?

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• How do you measure the effectiveness of your hiring & interview process?

  - by Yevgeniy Brikman

  Although I've seen many discussions on how to do an interview and develop your brand, I haven't seen many discussions on how to determine if your hiring & interview process is actually working well. I think this question has two parts: How do you know your hiring process is getting the right candidates to apply and go through the interview process? Of the people that you end up interviewing, how can you tell that the ones you choose to hire are better (on average) than those that you rejected? I suppose the "extreme" cases - when you end up with a superstar or a total dud - are pretty obvious, but what about the rest?

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• Code Smell: Inheritance Abuse

  - by dsimcha

  It's been generally accepted in the OO community that one should "favor composition over inheritance". On the other hand, inheritance does provide both polymorphism and a straightforward, terse way of delegating everything to a base class unless explicitly overridden and is therefore extremely convenient and useful. Delegation can often (though not always) be verbose and brittle. The most obvious and IMHO surest sign of inheritance abuse is violation of the Liskov Substitution Principle. What are some other signs that inheritance is The Wrong Tool for the Job even if it seems convenient?

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• Why do software patches have to be accepted by a developer?

  - by Nigel

  In open source projects, why do software patches have to be accepted by a developer? Couldn't contributors just release their own patches and allow people to add the patch if they choose to. I'm wondering why there are so many Ubuntu programs that could use such obvious work but aren't updated. For instance, lots of people want Rhythmbox to be more attractive. Why can't the people who design themes on DeviantArt turn those into code and let users download those themes themselves, even if the developers at Rhythmbox won't accept different themes?

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• NetBeans 7.2 RC1 is published

  - by Ondrej Brejla

  NetBeans 7.2 RC1 was today published. You can download it here. You could read about the PHP features added to the NetBeans 7.2 release here on the blog, but the main features added or improved are: Support for PHP 5.4 PHP editing: Fix Uses action, annotations support, editing of Neon and Apache Config files and more Support for Symfony2, Doctrine2 and ApiGen frameworks FTP remote synchronization Support for running PHP projects on Hudson For more information, just look at New and Noteworthy page for NetBeans 7.2. And as obvious you can help us to test the build. Just try it and if you find an issue / error, please report it. Thanks for your help.

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• Is SVN out of style?

  - by jitbit

  It's been only several years since I migrated from Visual Source Safe to SVN. And SVN for me is still kinda "WOW! I can do so many things! SVN is so cool!" But many people around me keep saying "SVN? Really? Meh..." And there's so many of them that I'm worried. Should I move my team to Git / Mercurial or some other fancy thing? I know I sound ridiculous and the obvious answer would be "stay with what works for YOU". SVN does work for me... But every time I create a new project in my repository I keep asking myself - may be this was the time to move? So... Is SVN really that bad? Do I miss a huge opportunity by sticking with it?

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• Should I forward the a call to .Equals onto .Equals<T>?

  - by Jaimal Chohan

  So, I've got you bog standard c# object, overriding Equalsand implementing IEquatable public override int GetHashCode() { return _name.GetHashCode(); } public override bool Equals(object obj) { return Equals(obj as Tag) } #region IEquatable<Tag> Members public bool Equals(Tag other) { if (other == null) return false; else return _name == other._name; } #endregion Now, for some reason, I used to think that forwarding the calls from Equals into Equals was bad, no idea why, perhaps I read it a long time ago, anyway I'd write separate (but logically same) code for each method. Now I think forwarding Equals to Equals is okay, for obvious reasons, but for the life me I can't remember why I thought it wasn't before. Any thoughts?

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• How do I hire testers by giving them a buggy app for testing their efficiency?

  - by Jay

  My boss wants to recruit testers based on their testing efficiency (number of bugs identified). So, he's shortlisted 5 people and I need to give them an app full of bugs and see how they fare in reporting obvious bugs, and hidden bugs. I know.... it kind of sounds weird. I guess, this is just like the coding world, where you hire a programmer by assessing his/her programming ability (which is a little easier). Once hired, these testers would be testing a java swing app, so their familiarity of testing frameworks/tools is not really required. So, my question here is - How do I go about finding buggy apps (web/non-web), preferably java ones, that I can have the shortlisted testers have a go at? How would you go about this task if your boss asks you to do so? I am kind of clueless at this point - I googled a bit, thought about finding new apps on sourceforge with lots of bugs, but both approaches didn't work for me.

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• NetBeans 7.3 Beta2 is Out!

  - by Ondrej Brejla

  NetBeans 7.3 Beta2 was published today. You can download it. You could read about the PHP features added to the NetBeans 7.3 release here on the blog, but the main features added or improved are: Parsers for Namespaced Annotations (Symfony 2, Doctrine 2, etc.), Basic Composer Integration (Dependency Manager for PHP), Twig Code Completion (with documentation), Smarty Braces Matching for Related Tags, Smarty Parser Errors of Unmatched Tags. As obvious you can help us to test the build. Just try it and if you find an issue / error, please report it. Thanks for your help.

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• Hiding recent files in Unity dashboard

  - by Eric

  Ubuntu 13.04 (though had the same issue in both 12.04 LTS and 12.10). Unity desktop (yes I like it, shush). Anyways, when clicking on the dashboard there is a tab for 'Files and Folders'. I don't have any files on this computer that isn't porn. In other words, it displays the images there (as it's supposed to), but I can't have it displaying the porn for obvious reasons. I have disabled 'recent activity' and even added the folder it's all in to the 'do not record activity in the following folders'. I'm assuming that works but as I don't actually have any other files, it still displays them. I don't want to have to make it a hidden folder because it's on an external HDD and causes issues when moving from computer to computer (I have other movies on it as well). TL;DR: Get rid of the 'Files and Folders' tab in the dashboard. Is it possible?

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• What is the term for a 'decoy' feature or intentional bug?

  - by Freiheit

  I have forgotten a slang programming term. This thing is an intentional bug or a decoy feature used as a distraction. An example usage, "Hey Bob, QA is doing a review today. Put a $THING into the module so they actually have a problem to find". This can be used negatively, to have a very obvious intentional flaw to discover as a distraction from a real problem. This can also be used positively. Its like how you always let rescue dogs 'find' a victim when searching a disaster area. It can also be used to verify that a QA process is actually catching flaws. What is the term I am looking for?

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• shutdown logging in ubuntu 10.04 & 11.10

  - by Joe

  When my system starts up it logs everything into syslog/dmesg. And I can review it for problems. When my system shuts down, where does that get logged? I didn't see anything obvious in /var/log in 10.04. (My 11.10 system is out of reach at the moment.) I looked at How do I turn on 'shutdown logging' or operating system tracing? but didn't see anything that helped. I use kubuntu, but all of the stuff at this level is probably the same.

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• How to unit test image processing code?

  - by rold2007

  I'm working in image processing (mainly OCR) and I wonder how I should integrate unit tests in my development. I'm already using unit tests for more "common" type of code but when dealing with image processing code I'm not sure how to deal with it. This kind of code always need some image data input/output and mocking this is not obvious. For now I'm mostly doing integration tests but they take a while to run and I would like some ideas on how to break down this kind of code into unit tests so that I can run them more quickly.

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• 'Situations gone wrong' for web apps...

  - by AvgJoe007

  Hi all I know there's some decent material floating around relating to more specific areas, but wanted to get some opinions from people who have had bad experiences in the past. I have a project where I can have a say on the design of a B2C web app, which has some external API interfaces. UX is crucial as is speed. Not sure what technology will be used at this stage. In designing this application, I want to make sure obvious features are not left out (i.e. ones that make maintenance/development easier). So can you guys tell me about 'situations gone wrong' that could have been avoided had more consideration taken place? Am looking to gather feedback in general, so don't worry if your example is industry/technology specific - so long as it pertains to web. Thanks for reading, I look forward to your responses!

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• how to contribute the same source code to two separate open-source projects?

  - by Jason S

  Let's say there are two similar open source projects A and B, both licensed under the Apache Software License 2.0. I would like to contribute an improvement to both projects (because I don't know which one is administered better, and I would like to see my improvement show up in both). Is there a way I can contribute this improvement to both projects in a simple way? (One obvious approach is to start an open source project C licensed under Apache 2.0, but that's a headache for various reasons; I don't want to maintain a project myself)

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• Procedural Planets, Heightmaps and Textures

  - by henryprescott

  I am currently working on an OpenGL procedural planet generator. I hope to use it for a space RPG, that will not allow players to go down to the surface of a planet so I have ignored anything ROAM related. At the moment I am drawing a cube with VBOs and mapping onto a sphere. I am familiar with most fractal heightmap generating techniques and have already implemented my own version of midpoint displacement (not that useful in this case I know). My question is, what is the best way to procedurally generate the heightmap. I have looked at libnoise which allows me to make tilable heightmaps/textures, but as far as I can see I would need to generate a net like this. Leaving the tiling obvious. Could anyone advise me on the best route to take? Any input would be much appreciated.

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• Source Browsing in FireFox

  - by lavanyadeepak

  Source Browsing in FireFox Just casually observed this a few minutes back with my Mozilla Firefox 3.6.3. When you do a view source of any  page in Internet Explorer it just renders as editable inoperative HTML. However in Firefox the hyperlinks are shown clickable and active. When you click on any hyperlink the most obvious and expected output would be that the target page would appear in one of the new tab in the parent browser. However the View Source window refreshed with the HTML source of the new page. I believe this gesture of Firefox would help us to take a journey back into Lynx Text Browsing in a way.

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• Declarative Transactions in Node.js

  - by James Kingsbery

  Back in the day, it was common to manage database transactions in Java by writing code that did it. Something like this: Transaction tx = session.startTransaction(); ... try { tx.commit(); } catch (SomeException e){ tx.rollback(); } at the beginning and end of every method. This had some obvious problems - it's redundant, hides the intent of what's happening, etc. So, along came annotation-driven transactions: @Transaction public SomeResultObj getResult(...){ ... } Is there any support for declarative transaction management in node.js?

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• Screen resolution higher than monitor specs

  - by bisi

  Is there any magical or non-magical way to increase screen resolution for my monitor that officially does 1366 x 768? With my graphics card, I could do 1920, and when I actually do that, the image is very "unclean" on the screen... I run Ubuntu 10.10, on an HP Pavilion with a GeForce 315. My monitor is a HD ready Samsung LE32C450... my smaller previous monitor had no problem showing a 1920 resolution, and my obvious mishap was to assume a much bigger screen would support at least this same resolution... Any tips would be greatly appreciated!

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