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• Change resolution in Waking Mars

  - by Wes

  I purchased and installed the humble bundle game "Waking Mars" via the Ubuntu Software Center and it works really well except for some issues with changing settings, namely with the resolution. The in-game settings for changing resolution and entering/exiting fullscreen were easy enough to find and toggle, and when you do it asks to restart the application. When you restart it, all other settings you updated are reflected except for the changes to the resolution. (I'm trying to get it to play in windowed mode that fits onto one monitor, but it will only default to windowed mode with the full dual monitor resolution). I noticed that it writes these values to ~/.local/share/WakingMars/UserSettings.ini. When I change the resolution, it is properly written to in this settings file...but it never is reflected when you restart the application. Any ideas what's wrong?

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• Why, on iOS, is glRenderbufferStorage appearing to fail?

  - by dugla

  On an iOS device (iPad) I decided to change the storage for my renderbuffer from the CAEAGLLayer that backs the view to explicit storage via glRenderbufferStorage. Sadly, the following code fails to result in a valid FBO. Can someone please tell me what I missed?: glGenFramebuffers(1, &m_framebuffer); glBindFramebuffer(GL_FRAMEBUFFER, m_framebuffer); glGenRenderbuffers(1, &m_colorbuffer); glBindRenderbuffer(GL_RENDERBUFFER, m_colorbuffer); GLsizei width = (GLsizei)layer.bounds.size.width; GLsizei height = (GLsizei)layer.bounds.size.height; glRenderbufferStorage(m_colorbuffer, GL_RGBA8_OES, width, height); glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, m_colorbuffer); Note: The layer size is valid and correct. This is solid production working rendering code. The only change I am making is the line glRenderbufferStorage(...) previously I did: [m_context renderbufferStorage:GL_RENDERBUFFER fromDrawable:layer] Thanks, Doug

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• When is a Use Case layer needed?

  - by Meta-Knight

  In his blog post The Clean Architecture Uncle Bob suggests a 4-layer architecture. I understand the separation between business rules, interfaces and infrastructure, but I wonder if/when it's necessary to have separate layers for domain objects and use cases. What added value will it bring, compared to just having the uses cases as "domain services" in the domain layer? The only useful info I've found on the web about a use case layer is an article by Martin Fowler, who seems to contradict Uncle Bob about its necessity: At some point I may run into the problems, and then I'll make a Use Case Controller - but only then. And even when I do that I rarely consider the Use Case Controllers to occupy a separate layer in the system architecture. Edit: I stumbled upon a video of Uncle Bob's Architecture: The Lost Years keynote, in which he explains this architecture in depth. Very informative.

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• Google I/O 2012 - Chrome Developer Tools Evolution

  Google I/O 2012 - Chrome Developer Tools Evolution Sam Dutton, Pavel Feldman Web app development moves fast and Chrome Developer Tools is still keeping you one step ahead. If you know your way around the Dev Tools and would like to take your skills to a higher level, this session will kick your productivity into overdrive. Since last year's installment, we've added a whole slew of features that empower developers to make rich web apps, so in this demo-rich session we'll explain how to use those tools to develop and debug on mobile and desktop. We'll take you jank hunting with the new timeline, delve into minified JavaScript via Source Maps, debug Web Workers, and much more. Join us and learn what Chrome Developer Tools can do for you. For all I/O 2012 sessions, go to developers.google.com From: GoogleDevelopers Views: 1722 36 ratings Time: 59:41 More in Science & Technology

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• Isn't GPL enough to make a software free as in free speech?

  - by user61852

  I have read people rebutting the fact that a certain software is free as in free speech, even when it is licensed under GPL. Some say Java isn't free because to obtain a professional certification you must get it from Oracle. Some say Java JDK is not free to re-distribute. Some people even say the openJDK is not free or open. But Java is officially GPL. Doesn't GPL explicitly mean you are free to re-distribute ? Isn't GPL enough to make a software free as in free speech ? How can Java be both GPL and not-free as in free speech ? Is there is any license that trully makes a software free beyond any possible subjetive point of view? EDIT: These question is not about names or trademarks, it's about the code.

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• SQLite with two python processes accessing it: one reading, one writing

  - by BBnyc

  I'm developing a small system with two components: one polls data from an internet resource and translates it into sql data to persist it locally; the second one reads that sql data from the local instance and serves it via json and a restful api. I was originally planning to persist the data with postgresql, but because the application will have a very low-volume of data to store and traffic to serve, I thought that was overkill. Is SQLite up to the job? I love the idea of the small footprint and no need to maintain yet another sql server for this one task, but am concerned about concurrency. It seems that with write ahead logging enabled, concurrently reading and writing a SQLite database can happen without locking either process out of the database. Can a single SQLite instance sustain two concurrent processes accessing it, if only one reads and the other writes? I started writing the code but was wondering if this is a misapplication of SQLite.

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• Can I run MS Office apps installed under windows with Ubuntu

  - by Richard

  I don't have the option of installing the MS Office apps under Wine mostly as I simply don't have them, but these apps do exist on the workstation I use at work. I have installed Ubuntu on this machine on the same partition as MS Windows via the run-Ubuntu-as-a-Windows-app (not quite verbatim) installation instructions. The MS Windows is XP Professional and the MS Office version is 2007. Perhaps there are two scenarios, one where I can simply use the apps where they sit, and another where I can somehow "install" the existing executables into Ubuntu (Wine?) rather than installing their iso's (or whatever), which, again, i don't have. Anyway, whatever you can tell me about this is good with me. Thank you so much.

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• Map of the Dead Helps You Plan For a Zombie Apocalypse

  - by Jason Fitzpatrick

  There’s no time like the present to start charting out your zombie apocalypse escape route. Map of the Dead highlights key locations–like gun stores, gas stations, and pharmacies–in your immediate area. The key to surviving the zombie horde is fast access to supplies. Unless you have a bunker under your house filled with goodies, you’ll need more fuel, ammo, and medical supplies–Map of the Dead makes it easy to see where the goods are in your locale. Make sure to mouse over the map key for some entertaining commentary. Map of the Dead [via Neatorama] The Best Free Portable Apps for Your Flash Drive Toolkit How to Own Your Own Website (Even If You Can’t Build One) Pt 3 How to Sync Your Media Across Your Entire House with XBMC

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• Funny statements, quotes, phrases, errors found on technical Books [closed]

  - by Felipe Fiali

  I found some funny or redundant statements on technical books I've read, I'd like to share. And I mean good, serious, technical books. Ok so starting it all: The .NET framework doesn't support teleportation From MCTS 70-536 Training kit book - .NET Framework 2.0 Application Development Foundation Teleportation in science fiction is a good example of serialization (though teleportation is not currently supported byt the .NET Framework). C# 3 is sexy From Jon Skeet's C# in Depth second Edition You may be itching to get on to the sexy stuff from C# 3 by this point, and I don’t blame you. Instantiating a class From Introduction to development II in Microsoft Dynamics AX 2009 To instantiate a class, is to create a new instance of it. Continue or break From Introduction to development II in Microsoft Dynamics AX 2009 Continue and break commands are used within all three loops to tell the execution to break or continue. These are just a few. I'll post some more later. Share some that you might have found too.

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• E-books make smart kids using Java ME mobile phones

  - by hinkmond

  Worldreader has been distributing e-books on Kindle devices to children in sub-Saharan Africa to teach the students how to read. But now, Worldreader has also created a Java ME app that helps even more students in developing countries to have access to free books. See: Reaching more students w/Java ME Here's a quote: In many African countries, 80 percent of the population owns a cell phone. Up to now, Worldreader has focused on distributing Kindles to classrooms (the organization’s founder is former Amazon exec, but by making e-books available via cell phones the organization can reach a much wider group of readers. Using technology to teach kids how to read in developing nations is a good way to use mobile devices like Java ME feature phones--a lot better than trying to slingshot cartoon angry birds at green pigs on those other platforms, doncha think? Hinkmond

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• hplip tries to print from photo tray

  - by James Bradbury

  I have hplip-3.14.4 with an HP Photosmart b210a and recently it has stopped printing properly. The issue is that it tries to print from the photo tray (which we don't use). I've tried setting this manually via the Settings page, but it makes no difference. My wife has the same issue (also using Ubuntu 12.04). EDIT: I've just set the printer up in Windows 7 and it works. So this is not a hardware fault and likely due to hplip or some Ubuntu software issue. Rolling back the driver to 3.13.8 does not make any difference. What else can I try

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• Roll Your Own Passive 3D Movie System with Dual Projectors

  - by Jason Fitzpatrick

  If you’d like to enjoy 3D movies with passive polarized glasses for less than $50,000 (the average price of a passive 3D projector), this DIY setup brings the price down to a more accessible level. Courtesy of 3D movie and theater enthusiast Jahun, this guide details how you can achieve passive 3D projection using two radically less expensive projectors, cheap polarized filters, and some software. The project won’t be free-as-in-beer but with some careful shopping the bill will ring up at the thousands instead of tens-of-thousands of dollars. Hit up the link below to see how he pulled off miming a $50,000 projector for less than a tenth the cost. Passive Projection [via Hack A Day] How to Get Pro Features in Windows Home Versions with Third Party Tools HTG Explains: Is ReadyBoost Worth Using? HTG Explains: What The Windows Event Viewer Is and How You Can Use It

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• Rotation based on x coordinate and x velocity?

  - by Lewis

  -(void) accelerometer:(UIAccelerometer *)accelerometer didAccelerate:(UIAcceleration *)acceleration { float deceleration = 0.3f, sensitivity = 8.0f, maxVelocity = 150; // adjust velocity based on current accelerometer acceleration playerVelocity.x = playerVelocity.x * deceleration + acceleration.x * sensitivity; // we must limit the maximum velocity of the player sprite, in both directions (positive & negative values) playerVelocity.x = fmaxf(fminf(playerVelocity.x, maxVelocity), -maxVelocity); } Hi, I want to rotate my sprite based on the velocity and accelerometer input. My sprite can move along the X axis like so: <--------- sprite ----------- But it always faces forwards, if it is moving left I want it to point slightly to the left, the degree of how far it is pointing to be judged from the velocity. This should also work for the right. I tried using atan but as the y velocity and position is always the same the function returns 0, which doesn't rotate it at all. Any ideas? Regards, Lewis.

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• Stunning DIY Aluminum and Walnut Case Mode Is a Work of Art

  - by Jason Fitzpatrick

  Many of the case mods we come across are intricate and packed with custom lighting and other geeky flourished. This case made take an opposite approach, combining aluminum and walnut to create a sleek and stunning living-room friendly HTPC case. Over in the Bit-Tech case modding forums, user Gtek shares his stunning case mod. Inside the block of aluminum and walnut you see here is a mini-ATC board, power supply, dual hard drives, and an optical drive. A single photo can’t do it justice so we highly recommend hitting up the link below to check out his sketches, build photos, and, of course, the gorgeous photos of the completed case–including the hidden peripheral panel and slot-loading drive. Tenuis – A DIY HTPC Case [via Apartment Therapy] 8 Deadly Commands You Should Never Run on Linux 14 Special Google Searches That Show Instant Answers How To Create a Customized Windows 7 Installation Disc With Integrated Updates

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• Need explanation of hexagonal architecture

  - by Victor Grazi

  I am reading about Alistair Cockburn's Hexagonal Architecture http://alistair.cockburn.us/Hexagonal+architecture with interest. One claim he makes is: "Finally, the automated function regression tests detect any violation of the promise to keep business logic out of the presentation layer. The organization can detect, and then correct, the logic leak." I do not understand this point. Is he saying that because the test is headless, then calls to a ui layer will throw exceptions? That doesn't seem to be a very sound test!

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• Improve Your Google Search Skills [Infographic]

  - by Jason Fitzpatrick

  Don’t limit yourself to just plugging in simple search terms to Google; check out this infographic and learn a search string search or two. You don’t need to limit yourself to searching just for simple strings; Google supports all manner of handy search tricks. If you want to search just HowToGeek.com’s archive of XBMC articles, for example, you can plug in site:howtogeek.com XBMC to search our site. Get More Out of Google [HackCollege via Mashable] How to See What Web Sites Your Computer is Secretly Connecting To HTG Explains: When Do You Need to Update Your Drivers? How to Make the Kindle Fire Silk Browser *Actually* Fast!

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• ZeroBin Is an Encrypted PasteBin Alternative

  - by Jason Fitzpatrick

  ZeroBin is like the heavily armored sibling of PasteBin; You can still paste large chunks of text but that text is encrypted with client-side encryption. PasteBin is great when you need to share snippets of code or log files, the only problem is the service is essentially wide open. Not such a big deal if you’re sharing your XBMC logs on the support forum to get a little help figuring out why your movie list won’t update, but less than idea if you’re sharing more sensitive information. ZeroBin steps in to fill that gap by offering client-side encryption where ZeroBin has no knowledge of the content of your shared text snippets. In addition you can set up the ZeroBin content to self destruct after a set amount of time. Hit up the link below to take ZeroBin for a spin. ZeroBin [via One Thing Well] How to Stress Test the Hard Drives in Your PC or Server How To Customize Your Android Lock Screen with WidgetLocker The Best Free Portable Apps for Your Flash Drive Toolkit

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• Can I use GPL software in a commercial application

  - by Petah

  I have 3 questions about the GPL here: If I use GPL software in my application, but don't modify or distribute it, do I have to release my application under the GPL? What if I modify some software that my application uses. Then do I have to release my application under the GPL, or can I just supply the modified software under the GPLs terms. And what if I use GPL software, but don't modify it, can I distribute it with my application? My case in point is, I have a PHP framework which I use the GeSHi library to highlight some output. Because GeSHi is GPL, does my framework have to be GPL? Can I modify GeSHi for particular use cases of my application if I supply the modifications back to the GeSHi maintainers? Can I redistribute my framework with GeSHi?

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• 2D game collision response: SAT & minimum displacement along a given axis?

  - by Archagon

  I'm trying to implement a collision system in a 2D game I'm making. The separating axis theorem (as described by metanet's collision tutorial) seems like an efficient and robust way of handling collision detection, but I don't quite like the collision response method they use. By blindly displacing along the axis of least overlap, the algorithm simply ignores the previous position of the moving object, which means that it doesn't collide with the stationary object so much as it enters it and then bounces out. Here's an example of a situation where this would matter: According to the SAT method described above, the rectangle would simply pop out of the triangle perpendicular to its hypotenuse: However, realistically, the rectangle should stop at the lower right corner of the triangle, as that would be the point of first collision if it were moving continuously along its displacement vector: Now, this might not actually matter during gameplay, but I'd love to know if there's a way of efficiently and generally attaining accurate displacements in this manner. I've been racking my brains over it for the past few days, and I don't want to give up yet! (Cross-posted from StackOverflow, hope that's not against the rules!)

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• Windows Phone 7 UserExtenedProperties opinion...

  - by webdad3

  I was thinking of a way to some how connect my phone user base to my site user base. Right now if an item gets added to the site via the phone the userId is generic and the site displays it as SmartPhoneUser. I was thinking it might be cool to display the unique phone id by using the UserExtenedProperties, however, after reading Nick Harris's blog about it I'm thinking it may not be a good idea as I don't want users to think I'm up to anything nefarious. So I'm wondering if there are any suggestions out there on how to accomplish this task. Right now my site uses the JanRain module that allows multiple logins from other sites (Facebook, Yahoo, Google etc.). Any thoughts on how I can accomplish what I want to do without using the ExtendedProperties?

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• Having trouble locating charms - pointing to store.juju.ubuntu.com? DNS error

  - by dt2511

  Can't seem to sort out how to get juju to point to the right source for charms, base install yields the following result when issued the following command. juju deploy --repository=examples mysql DNS lookup failed: address 'store.juju.ubuntu.com' not found: [Errno -2] Name or service not known. 2011-10-12 18:38:39,946 ERROR DNS lookup failed: address 'store.juju.ubuntu.com' not found: [Errno -2] Name or service not known. When trying to run it with juju deploy --repository=examples local:mysql I get this error: Charm 'local:oneiric/mysql' not found in repository /root/juju/examples 2011-10-12 18:53:57,311 ERROR Charm 'local:oneiric/mysql' not found in repository /root/juju/examples I've put the charm itself in the directory /root/juju/examples, and am running the command from /root/juju. What is wrong?

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• Replace Libre Office with Microsoft Office

  - by user26272

  folks. I finally convinced my sister to drop Windows at her small business and go Ubuntu. She complained, though, that she does not want to use Libre Office and is willing to use Microsoft Office instead. I was like, ok, then. Then, she asked: - Libre office is the default, right? - Right. - So, if someone gives me a document, by default it will open on Libre Office. Can you make it open on Microsoft Office by default instead? So, even if I get it working via Wine, can I do what she requested or is it an impossible task?

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• Establishing relationships with unsolicited recruiters

  - by Michael

  Several times each year, I receive unsolicited introductions from tech recruiters, usually via LinkedIn and usually local firms. I am not currently looking for a new job. Is it advisable to establish a relationship with one or more recruiters when I'm not interested in finding new work, so that they have my resume on file? Here's another way I approach the question: My plumber was first hired at the point of need: I had a plumbing problem, looked up a few of them, and evaluated and hired based on their demeanor and cost estimates. I established a relationship with a general attorney, on the other hand, well in advance of ever actually needing services so that if or when services are needed he already knows enough about me to begin work. Should I approach recruiters like I approached my plumber or my lawyer? A separate discussion, I suppose, is whether or not the type of recruiters who troll LinkedIn for clients are generally helpful or not. Edit: I have never worked with a recruiter before, and therefore have little idea what to expect.

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• At what visitor share do you stop supporting a given browser?

  - by adam

  I'm lead dev for a large website which has a higher than average percentage of IE6 users - about 4.4% of our audience. Our new version is going to make use of progressive enhancement - including transitions and effects as well as rounded corners, gradients, web fonts and other CSS techniques. Obviously there are cross-browser ways to achieve most of these things which require various amounts of work to implement. What I'm currently looking into - and what I'd like your experiences of - is how to decide at what point we draw the line between providing an enhanced experience vs just supporting the functionality. FYI, I believe that this question meets the six guidelines for great subjective questions as defined in the FAQ. I'm after answers detailing why and how, not too short, with constructive comments, experiences, facts and references. Thanks! Adam

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• Custom Silent HTPC Uses Entire Case as a Heatsink

  - by Jason Fitzpatrick

  This silent media center PC dissipates heat in a rather clever way; the entire back of the case is one giant heatsink. Courtesy of computer enthusiast and tinker DeFex, the build isn’t just silent but quite eye catching too. He used a combination of one massive heatsink, custom brackets, acrylic, and bicycle spokes to create a sleek case that looks as much like a computer-inspired work of art as it does a media center computer. Hit up the link below to check out the build gallery and see how he mated the CPU to the heatsink-body with a custom milled aluminum bridge. Heatsink HTPC [via Hack A Day] Secure Yourself by Using Two-Step Verification on These 16 Web Services How to Fix a Stuck Pixel on an LCD Monitor How to Factory Reset Your Android Phone or Tablet When It Won’t Boot

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