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• Studentworker - being a superhero?

  - by Niklas H

  A couple of weeks ago I got a new job as a studentworker for a webagency. The job is 15-20 hours of week. Even though I am new in the company, I feel right at home and I enjoy working with my co-workers. To start of with, I was assigned to work on an internal tool in the company, in order to learn their systems and their development platform. The deadline for this project is this week, and I am right on time. But today (wednesday at noon) I received an email from my boss, asking me to do a new project that has a deadline at friday morning. The new assignment alone will be hard to finish on time, and on top of that I need to finish the other assignment on time. My question is: How do I handle my boss expecting me to be a superhero? EDIT: I will talk to my boss about delaying one of the projects. But another problem is that the new assignment will be hard to do on time (friday morning). I didn't have a say on the deadline - I just got a mail telling me the deadline. I am new in the company and want to stay, but I don't want to start off on the wrong foot with the boss.

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• Updating games for iOS 6 and new iPhone/iPod Touch

  - by SundayMonday

  Say I have a game that runs full-screen on iPhone 4S and older devices. The balance of the game is just right for the 480 x 320 screen and associated aspect ratio. Now I want to update my game to run full-screen on the new iPhone/iPod Touch where the aspect ratio of the screen is different. It seems like this can be challenging for some games in terms of maintaining the "balance". For example if the extra screen space was just tacked onto the right side of Jet Pack Joyride the balance would be thrown off since the user now has more time to see and react to obstacles. Also it could be challenging in terms of code maintenance. Perhaps Jet Pack Joyride would slightly increase the speed of approaching obstacles when the game is played on newer devices. However this quickly becomes messy when extra conditional statements are added all over the code. One solution is to have some parameters that are set in once place at start-up depending on the device type. What are some strategies for updating iOS games to run on the new iPhone and iPod Touch?

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• Java SE 6 Update 23 is released!

  - by [email protected]

  Java SE 6 Update 23 includes the following key changes: Java VisualVM 1.3.1 introduces the following features and enhancements:           o Added Java version and vendor information to the application Overview view           o Built on NetBeans Platform and profiler 6.9.1 Swing JMenuItem Corrections for right-to-left languages           o Non-default alignment and text orientation for the menu items in Swing have been fixed           o The position of the icon and the text where text used to overlap the icon in a menu item was corrected           o All platform Look and Feel configurations will now handle menu items in right-to-left language situations. Updated HotSpot 19 JVM Engine with improvements to overall performance and reliability. Additional Languages support in SuSE Linux Enterprise Server 10 and 11 on Chinese(Simplified), Chinese (Traditional), Japanese, and Korean locales. Supported system configuration, check - http://java.sun.com/javase/6/webnotes/install/system-configurations.htmlSee Release Notes for additional details.

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• Concurrency with listeners and upload: is this solution sound?

  - by cbrulak

  I'm working on an Android app. We have listeners for position data and camera capture which is timed on a background thread (not a service). The timer thread dictates when the image is captured and also when the data is cached in a local sqlite db. So, my question is how to properly store the location data as it comes in based on the listeners and pull that data so that the database can be updated as the camera capture is executed. I can't put the location data into the database as it arrives because it is processed more frequently than the camera images and the camera images are what dominates the architecture at the moment. (Location data is supplement). However I need the location data to get a rough location of the where the image is captured. My first thought was to have singleton store the location data. And have a semaphore on the getInstance method so if the database update is happening (after an image is captured) we don't have an error. The location data can wait for the database update or it can be lost for that particular event it doesn't really matter. What are you thoughts? Am I on the right track? (And is this the right sub-site or would this be better on stackoverflow?)

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• Do I need social networks to be an expert developer? [closed]

  - by Gerald Blizzy

  This question may sound odd, but do I need twitter, facebook and google+ if I am a web-developer? I see many expert developers nowadays using it in working order. It seems like it's harder to stay in touch with customers, co-workers and potential customers if you don' use social networks. Am I right? Reason why I ask is that I am totally not a facebook/twitter person, I find it boring and annoying. I understand that linkedin is usefull for career, but what about twitter and facebook? Are they needed for web-developer career? What I am trying to ask is if I only use linkedin, own portfolio website, google talks, gmail and something like github, would I actually miss anything professionally/job-wise? My thoughts are that I can just have my portfolio website where I list all my projects aswell as contacts page with my google talks/gmail account. It can suit both fulltime job, freelance and own projects. So this way email and google talks is just enough. Am I right or not? Thanks in advance!

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• Visual Studio 2010 Pro Power Tools Screencast

  - by Steve Michelotti

  Microsoft just released the Visual Studio 2010 Pro Power Tools extension and it is awesome. A summary of all the features can be found here and it is available in the Visual Studio Gallery here. There are a bunch of great features but, in my opinion, the best one is the replacement for the Add Reference dialog. This gives sub-string search capabilities as well as the ability to add multiple references without having to continually re-open the dialog. For this feature alone, you should install the Pro Power Tools right now. There are a few blogs posts that do a good job describing all the features but what I wanted to do here was to post a quick screencast (7 minutes) that shows the features that I think are really cool. I show most (but not all) of the features focusing on the ones I think are the best. The features I cover are: Installation with the Extension Manager Add Reference Dialog replacement Tab Well including pinned tabs, pinned tabs in second row, fixed close button, colorized tabs, dirty indicator Highlight current line Triple Click for full-line selection Ctrl + Click for Go To Definition Colorized Parameter Help Enjoy! (Right-click and Zoom to view in full screen)

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• Prevent oversteering catastrophe in racing games

  - by jdm

  When playing GTA III on Android I noticed something that has been annoying me in almost every racing game I've played (maybe except Mario Kart): Driving straight ahead is easy, but curves are really hard. When I switch lanes or pass somebody, the car starts swiveling back and forth, and any attempt to correct it makes it only worse. The only thing I can do is to hit the brakes. I think this is some kind of oversteering. What makes it so irritating is that it never happens to me in real life (thank god :-)), so 90% of the games with vehicles inside feel unreal to me (despite probably having really good physics engines). I've talked to a couple of people about this, and it seems either you 'get' racing games, or you don't. With a lot of practice, I did manage to get semi-good at some games (e.g. from the Need for Speed series), by driving very cautiously, braking a lot (and usually getting a cramp in my fingers). What can you do as a game developer to prevent the oversteering resonance catastrophe, and make driving feel right? (For a casual racing game, that doesn't strive for 100% realistic physics) I also wonder what games like Super Mario Kart exactly do differently so that they don't have so much oversteering? I guess one problem is that if you play with a keyboard or a touchscreen (but not wheels and pedals), you only have digital input: gas pressed or not, steering left/right or not, and it's much harder to steer appropriately for a given speed. The other thing is that you probably don't have a good sense of speed, and drive much faster than you would (safely) in reality. From the top of my head, one solution might be to vary the steering response with speed.

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• What partition to use to keep data files in Ubuntu?

  - by Martin Lee

  I have been using Ubuntu for a few years and usually my partition set up was the following: Ext3 or Ext4 partition for the system itself (20 GB); A 10 GB swap partition; a big FAT32 partition to store movies, photos, work stuff, etc. (depends on the capacity of the disk, but usually it is what is left from Ext3+Swap, currently it is more than 200 GB). Does this setup sound right? I am considering to switching to one big Ext3 partition now, because the problem with Fat32 in Ubuntu has not gone anywhere: for example, right now I can access my 'big' partition with a 'Data' label only through /media/_themes?END. Pretty strange name for a partition, isn't it? some Linux software fail to read/write on this partition. For example, if I want to play around with rebar and build/make/compile things on this FAT32 partition, it will always complain about permissions and won't work (the same goes for many other kinds of software); it is not stable, I can not refer to some files on this FAT32 partition, because after the next reboot it will be called not '_themes?END', but something else. On the other side I usually begin to run out of space on the Ext3 partition after a few months of usage. So, the question is - what is the best setup of partitions for an Ubuntu system? Should a FAT32 partition be used at all?

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• Xna GS 4 Animation Sample bone transforms not copying correctly

  - by annonymously

  I have a person model that is animated and a suitcase model that is not. The person can pick up the suitcase and it should move to the location of the hand bone of the person model. Unfortunately the suitcase doesn't follow the animation correctly. it moves with the hand's animation but its position is under the ground and way too far to the right. I haven't scaled any of the models myself. Thank you. The source code (forgive the rough prototype code): Matrix[] tran = new Matrix[man.model.Bones.Count];// The absolute transforms from the animation player man.model.CopyAbsoluteBoneTransformsTo(tran); Vector3 suitcasePos, suitcaseScale, tempSuitcasePos = new Vector3();// Place holders for the Matrix Decompose Quaternion suitcaseRot = new Quaternion(); // The transformation of the right hand bone is decomposed tran[man.model.Bones["HPF_RightHand"].Index].Decompose(out suitcaseScale, out suitcaseRot, out tempSuitcasePos); suitcasePos = new Vector3(); suitcasePos.X = tempSuitcasePos.Z;// The axes are inverted for some reason suitcasePos.Y = -tempSuitcasePos.Y; suitcasePos.Z = -tempSuitcasePos.X; suitcase.Position = man.Position + suitcasePos;// The actual Suitcase properties suitcase.Rotation = man.Rotation + new Vector3(suitcaseRot.X, suitcaseRot.Y, suitcaseRot.Z); I am also copying the bone transforms from the animation player in the Person class like so: // The transformations from the AnimationPlayer Matrix[] skinTrans = new Matrix[model.Bones.Count]; skinTrans = player.GetBoneTransforms(); // copy each transformation to its corresponding bone for (int i = 0; i < skinTrans.Length; i++) { model.Bones[i].Transform = skinTrans[i]; }

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• MOSC Bits - Personalized Profile

  - by Irina Donaldson - Moderator -Oracle

  It is a good idea to have a unique profile in MOSC. Your activities there are better recognized and might even become a well known brand! This leads to recognition and trust. My Oracle Support Communities (MOSC)  is a well established platform where experiences are shared. Reputation and trust are the basis for the quality of all communication there. A personalized  profile can help to build up a good reputation. Besides the experience counter, a good name, details about your location and business experience are valuable details. Although a little bit hidden, the profile's avatar can be customized, too. The profile's avatar is an eye catcher and can act as an unique visual representation for  you.  How to add / modify MOSC profile avatar (picture, icon)  ?    Don't look in Edit Profile section. After login, click on  your profile's name on top right.   This lists all public information as part of the Bio section. Select the Activity tab. The Change Avatar link is on same level at far right. A list of predefined symbolic pictures is populated. Choose from the list of existing pictures or try Add Another to upload an image file from your local computer (JPG, PNG, GIF, or BMP only, maximum file size of 2.0 MB). Note: New added images can be used only after running through a review process. Usually after one business day they can be selected for your personal avatar.

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• Ten Classic Electronic Toys and Their Modern Equivalents

  - by Jason Fitzpatrick

  Whether you’re looking to relive the toy exploits of your youth or pass your love of tinkering and electronics onto the younger generation, this list highlights ten great electronic toys of yesteryear and their modern equivalents. Courtesy of Wired’s Geek Dad, the description for the all-in-one electronics kit seen here: What is was: Arthur C. Clarke has said that any sufficiently advanced technology is indistinguishable from magic. As a kid in the midst of an increasing technological revolution, electronics were at the heart of that. Learning electronics was made easy through the Science Fair Electronic Project Kits found at Radioshack. Through the project guides, kids could construct various ‘experiments’ by attaching wires to terminal springs that make circuits. The terminal springs would wire in components such as LED segment lights, photo sensors, resistors, diodes, etc. While it was fun getting the projects to work, the manuals lacked in depth explanation as to what was happening in the circuit to produce the project’s result. Why it was awesome: First, it was a simple buy for parents. Everything you needed to get your child interested in electronics was right in the kit. You didn’t need to breadboard or solder. I remember a distinct feeling of accomplishment making a high-water alarm or a light-sensor game with the realization that the bundles of wires springing up from the kit were actually doing something! Modern equivalent: You can still pick up variations of the 100-in-1 kits, but their popular replacement seem to be Snap Circuits by Elenco. All of the components are mounted on a plastic base with a contact on either end which interconnect with each other and the plastic base that projects can be mounted to. Each component also has the electrical diagram symbol for that component drawn on it so it can help you read schematics. For that reason alone, I like these better. HTG Explains: Why You Only Have to Wipe a Disk Once to Erase It HTG Explains: Learn How Websites Are Tracking You Online Here’s How to Download Windows 8 Release Preview Right Now

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• How can I add a custom item to the Sound Indicator (and make it clickable more than once)?

  - by con-f-use

  The original question One of the strength of Unity are the various standardized indicators. I want to customize the sound indicator with an additional menu entry that runs a small shell script. I'm not afraid of a little Python code and I hope someone can point me to the right subroutine in the right file. I suspect that will be fairly easy but all the indicators are just so bloated that I can't look through their code in a reasonable time. Any help is appreciated. I know it is possible as the marvelous Skype-Wrapper does it. Edit 2 - Now a dirty DBus hack The one click problem from one edit before has now turned into a DBus problem. Basically we have to tell the sound indicator that our bogus player has terminated now. A dirty hack navigates around that problem: #!/bin/bash # This is '/home/confus/bin/toggleSpeaker.sh' notify-send "Toggle Speaker" "$(date)" qdbus \ com.canonical.indicator.sound \ /org/ayatana/indicator/service \ org.ayatana.indicator.service.Shutdown exit 0 Help from the community is appreciated as I don't have experience any with DBus whatsoever. Edit 1 - Takkat found a solution but only clickable once? For some reason the solution proposed by Takkat has the drawback that the resulting entry in indicator sound can only be clicked once per session. If someone has a fix for, than please comment or answer, you will be upvoted. Here you can see the result: I strongly suspect the issue is related to the .desktop-file in /home/confus/.local/share/application/toggleSpeaker.desktop, which is this: [Desktop Entry] Type=Application Name=toggleSpeaker GenericName=Toggle Speaker Icon=gstreamer-properties Exec=/home/confus/bin/toggleSpeaker.sh Terminal=false And here is a minimal example of the script in /home/confus/bin/toggleSpeaker.sh for your consideration: #!/bin/bash # This is '/home/confus/bin/toggleSpeaker.sh' notify-send "Toggle Speaker" "$(date)" exit 0

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• (Abstract) Game engine design

  - by lukeluke

  I am writing a simple 2D game (for mobile platforms) for the first time. From an abstract point of view, i have the main player controlled by the human, the enemies, elments that will interact with the main player, other living elements that will be controlled by a simple AI (both enemies and non-enemies). The human player will be totally controlled by the player, the other actors will be controlled by AI. So i have a class CActor and a class CActorLogic to start with. I would define a CActor subclass CHero (the main player controlled with some input device). This class will probably implement some type of listener, in order to capture input events. The other players controlled by the AI will be probably a specific subclass of CActor (a subclass per-type, obviously). This seems to be reasonable. The CActor class should have a reference to a method of CActorLogic, that we will call something like CActorLogic::Advance() or similar. Actors should have a visual representation. I would introduce a CActorRepresentation class, with a method like Render() that will draw the actor (that is, the right frame of the right animation). Where to change the animation? Well, the actor logic method Advance() should take care of checking collisions and other things. I would like to discuss the design of a game engine (actors, entities, objects, messages, input handling, visualization of object states (that is, rendering, sound output and so on)) but not from a low level point of view, but from an high level point of view, like i have described above. My question is: is there any book/on line resource that will help me organize things (using an object oriented approach)? Thanks

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• Launching php script through comman line - keeping terminal window open after execution

  - by somethis

  Oh, my girlfriend really likes it when I launch php scripts! There's something special about them, she says ... Thus, I coded this script to run throught the CLI (Command Line Interface) - so it's running locally, not on a web server. It launches just fine through right click open run in terminal but closes right after execution. **Is there a way to keep the terminal window open? Of course I can launch it through a terminal window - which would stay open - but I'm looking for a one click action. With bash scripts I use $SHELL but that didn't work (see code below). So far, the only thing I came up with is sleep(10); which gives me 10 seconds for my girl to check the output. I'd rather close the terminal window manually, though. #!/usr/bin/php -q <?php echo "Hello World \n"; # wait before closing terminal window sleep(10); # the following line doesn't work $SHELL; ?> (PHP 5.4.6-1ubuntu1.2 (cli) (built: Mar 11 2013 14:57:54) Copyright (c) 1997-2012 The PHP Group Zend Engine v2.4.0, Copyright (c) 1998-2012 Zend Technologies )

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• Tracking feature requests for small-scale components

  - by DXM

  I'm curious how other development teams (especially those that work in moderate to large development groups) track "future" features/wishlists for functionality for internally developed frameworks or components. I know the standard advice is that a development team should find one good tool for tracking bugs/features and use that for everything and I agree with that if the future requests are for the product itself. In my company we have an engineering department, which is broken up into multiple groups and within each there can be one to several agile teams. The bug tracking product we use has been "a leader since 1997" (their UI/usability seems to also be evaluated against that year even today) but my agile team or even group doesn't really control what is being used by the whole department. What we are looking to track is not necessarily product features but expansion/nice to have functionality for internal components that go into our product. So to name a few for example... framework/utility library on top of CppUnit which our developers share low-level IPC communications framework Common development SDK that myself and several other team leads started to help share some common code/tools at the department-wide level (this SDK is released as internal "product" to each of the groups). Is the standard practice to use the one bug tracking tool? Or would it make more sense to setup something more localized specifically for our needs and maintain it ourselves? It's also unclear how management will feel if developers start performing "IT" roles of maintaining software and servers. At the same time, right now, we use excel files, internal wiki and MS OneNote for this kind of stuff and that just doesn't feel right. (I'm afraid to ask for actual software recommendations, since that might make this question more localized or something. Also developers needs this way more than management, so it would be nice to find something either free or no more than the cost of a happy hour).

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• How to create an Orthographic display in OpenGL (ES) that handles different screen sizes and orientations?

  - by Piku

  I'm trying to create an iPad/iPhone game using GLES2.0 that contains a 3D scene with a heads-up-display/GUI overlaid on the top. However, this problem would also apply if I were to port my game to a computer and run the game in a resizable window, or allow the user to change screen resolutions... When trying to make the 2D GUI/HUD work I've made the assumption that all I'm really doing is drawing a load of 2D textured 'quads' on the screen and am trying to treat the orthographic projection as an old-style 2D display with 0,0 in the upper left and screenWidth,ScreenHeight in the lower right. This causes me all sorts of confusion when I rotate my ipad into Landscape mode since I can't work out what to put into my projection and modelview matrices to turn everything around the right way. It also gets messy if I want to support the iPad's large screen, an iPhone or a Retina display since I have to then draw three sets of textures for everything and work out which ones to use. Should I be trying to map the 2D OpenGL co-ords 1:1 with the screen? While typing out this question it occurs to me that I could keep my origin in the centre, still running -1/+1 along the axes. This would let me scale my 2D content appropriately on the different screen sizes, but wouldn't I end up with the textures being scaled and possibly losing quality? I'm using OpenGLES 2.0 and have a matrix library that has equivalents to the GLES1.1 glOrthof() and glFrustrum() calls.

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• Is having functionality in DB a road block to scalability?

  - by Estefany Velez

  I may not be able to give the right title to the question. But here it is, We are developing financial portal for wealth management. We are expecting over 10000 clients to use the application. The portal calculates various performance analytics based on the the technical analysis of the stock market. We developed lot of the functionality through Stored procedures, user defined functions, triggers etc. through Database. We thought we can gain huge performance boost doing stuff directly in database than through C# code. And we actually did get a huge performance boost. When I tried to brag about the achievement to our CTO, he counter questioned my decision of having functionality implemented in database rather than code. According to him such applications suffer scalability problems. In his words "These days things are kept in memory/cache. Clustered data is hard to manage over time. Facebook, Google have nothing in database. It is the era of thin servers and thick clients. DB is used only to store plain data and functionality should be completely decoupled from the database." Can you guys please give me some suggestions as to whether what he says is right. How to go about architect such an application?

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• Low-level game engine renderer design

  - by Mark Ingram

  I'm piecing together the beginnings of an extremely basic engine which will let me draw arbitrary objects (SceneObject). I've got to the point where I'm creating a few sensible sounding classes, but as this is my first outing into game engines, I've got the feeling I'm overlooking things. I'm familiar with compartmentalising larger portions of the code so that individual sub-systems don't overly interact with each other, but I'm thinking more of the low-level stuff, starting from vertices working up. So if I have a Vertex class, I can combine that with a list of indices to make a Mesh class. How does the engine determine identical meshes for objects? Or is that left to the level designer? Once we have a Mesh, that can be contained in the SceneObject class. And a list of SceneObject can be placed into the Scene to be drawn. Right now I'm only using OpenGL, but I'm aware that I don't want to be tying OpenGL calls right in to base classes (such as updating the vertices in the Mesh, I don't want to be calling glBufferData etc). Are there any good resources that discuss these issues? Are there any "common" heirachies which should be used?

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• UK Pilot Event: Fusion Applications Release 8 Simplified UI: Extensibility & Customization of User Experience

  - by ultan o'broin

  Interested? Of course you are! But read on to understand the what, why, where, and the who and ensure this great opportunity is right for you before signing up. There will be some demand for this one, so hurry! What: A one-day workshop where Applications User Experience will preview the proposed content for communicating the user experience (UX) tool kit intended for the next release of Oracle Fusion Applications. We will walk through the content, explain our approach and tell you about our activities for communicating to partners and customers how to customize and extend their Release 8 user experiences for Oracle Fusion Applications with composers and the Oracle Application Development Framework Toolkit. When and Where: Dec. 11, 2013 @ Oracle UK in Thames Valley Park Again: This event is held in person in the UK. So ensure you can travel! Why: We are responding to Oracle partner interest about extending and customizing Simplified UIs for Release 7, and we will be use the upcoming release as our springboard for getting a powerful productivity and satisfaction message out to the Oracle ADF enterprise methodology development community, Fusion customer implementation and tailoring teams and to our Oracle partner ecosystem. This event will also be an opportunity for attendees to give Oracle feedback on the approach too, ensuring our messaging and resources meets your business needs or if there is something else needed to get up and running fast! Who: The ideal participants for this workshop are who will be involved in system implementation roles for HCM and CRM Oracle Fusion Applications Release 8, as well as seasoned ADF developers supporting Oracle Fusion Applications. And yes, Cloud is part of the agenda! How to Register: Use this URL: http://bit.ly/UXEXTUK13 If you have questions, then send them along right away to [email protected]. Deadline: Please RSVP by November 1, 2013.

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• How programmers can afford to NOT learn new things.

  - by newbie

  Good day! I am wondering how programmers learn many things because as a career shifter (from engineering to IT), I find it really hard to absorb everything. Three months ago, I learned HTML/CSS/Javascript. Two months ago, I learned mySQL and CCNA1. One month ago I learned C and Java. Now I am trying to learn J2EE. But it seems that I must combine everything I learned then add more into my brain (especially because J2EE is HUGE! -- XML, servlets, JSP, JSTL, EJB, frameworks(Hibernate, Structs, Spring), JDBC... and so on!!!) So I am wondering, how can programmers learn everything, then add something new without being confused of everything! Because Right now, I feel like my brain is going to explode because of information overload! And these knowledge I am trying to acquire are just the BASICS of programming (icing on the cake)! I still need to learn MORE to become a good programmer! And new technology emerges now and then that requires programmers to learn more again.. Learn.. learn.. learn... Any suggestions on how you as a programmer fit all you've learned into your brain? And how do you know which is the right thing for you to learn? Aren't you afraid that what you've learned may be obsolete next year then start learning again...?

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• What is the safest way to remove a swap partition?

  - by user212062

  I am running Ubuntu 12.04 on a 64-bit HP laptop with a 16 GB flash drive. I do not have a working hard drive right now. When I installed Ubuntu, I created a 2 GB swap partition on sdb1. I have since learned that swap partitions are generally a bad idea on flash drives, so I would like to use my swap space for my other partitions. You can see my partition scheme in the link below. I have read that I just have to comment sdb1 out of the fstab file, boot from a GParted live CD, select swapoff for sdb1, delete/merge with other partition, and everything's good. But, I've also read that messing with sdb1 can change the UUID of sdb2 or sdb3 and cause problems. Is this true? Does initramfs use swap at all? Also, when I get Ubuntu running on my laptop with an internal hard drive, does the swap partition help that much? I have 6 GB of DDR3. Does the rule of 1.5xActual RAM still apply? It seems like quite a bit to me. Thanks for the help! UPDATE: I have removed swap. The process I followed is: Right click swap partition in GParted and selected swapoff. Used # to comment the swap partition out of fstab. I tried to boot from a live GParted CD, but I kept getting an error, so I ran GParted in Ubuntu. Deleted swap partition in GParted. Unmounted /windows. Expanded /windows to take the remaining space. Mounted /windows. The / and /windows partitions each kept their own names and UUIDs, and everything is running fine. I have never seen any swap space being used before, and I don't intend to use the hibernate function, so I think removing swap was a good idea.

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• Fixing Windows7 Bootmgr

  - by Ashfame

  I made my laptop Dell XPS 15z dual boot with Ubuntu last year, and something went wrong & BOOTMGR of my windows got fried. I couldn't fix it that time. And I kept using Ubuntu. I don't even remember whether I installed directly via a live usb or used wubi, sorry. I installed 11.10 at that point of time, but right now I am on 12.10. Today, I got to know about the Boot repair tool, so I was wondering with this tool may be I can figure out what's exactly wrong with my setup. This is my Boot info - http://paste.ubuntu.com/1343575/ If I select the Win7 entry on GRUB2, I get the error BOOTMGR is missing. Press Ctrl-Alt-Del. Now the thing is I have read numerous links on how this could be fixed, but I don't feel comfortable without knowing what I am doing. So unless I am sure what a certain tool would do, I would prefer fixing it by hand (manually editing files). So reading from my boot info file, can anyone explain it to me what's messed up wrong here and what could fix it? I certainly can't afford to have my ubuntu install unbootable right now, but looking into this issue is bothering me too much. Help appreciated! I have Win7 DVD & Ubuntu live USBs with me, I am just looking for a sure shot way of fixing Win7 without any harm to my existing Ubuntu install.

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• What's the best way to learn/increase problem-solving skills?

  - by tucaz

  Hi all! I'm not sure this is the right place to ask this question, neither if this is the right way to ask this question but I hope you help me if it is not. I work as a programmer since I was 15 (will be 24 next week) so learning programming logic was somehow natural during the course of my career and I think that it helped me to get pretty good problem-solving. One thing none of us (programmers) can deny is that programming logic helps us in a lot of fields outside computer programming. So I'd say it is a very valuable resource that one should learn. My girlfriend is not a programmer and graduated in college on a non related course (Foreign Relations) because she didn't know what to study back then. As the years passed she discovered that she liked Logistics and started to work with it almost two years ago. However, since she does not have a technical background (not even basic Math) she is really having a hard time with it. She is already trying to catch up with Math, but even simple questions/brain-teasers are hard to her. For example, trying to find the missing numbers of this sequence: 0, 1, 1, 2, 3, 5, 8, _, _, 34 and so on. We know that this is Fibonacci but if we didn't we would probably be able to get to the correct answer just by "guessing" (using our acquired problem-solving skills). I'm not sure if problem-solving skills or logic are the correct name for it, but this is what I mean: quick solve problems, brain-teasers, find patterns, have a "sharp" mind. So, the question is: what is the best way for someone to learn this kind of skills without being a programmer (or studying algorithms and such)? If you say it is a book, could you please recommend one? Thanks a lot!

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• Data indexing frameworks fit for large E-Commerce applications

  - by Dabu

  we wrote and still maintain a large E-Commerce application. Our feature list resembles what you would expect from most shops. We'd like to improve some of our features, and now the search/suggestion list functionality (enter some letters, a JScripted suggestion list appears) has caught our eye. Currently, we use http://xapian.org/. It has some drawbacks. Firstly, it's not actually the right solution. It has been created to index documents, not ever-changing data in a granularity that an E-Commerce application would need. Secondly, the load on the database is significant when we reindex all data every night. We'd like a framework that has been designed for indexing database data, which can add to the index easily and without much load, which can supply data changes in the backoffice quickly to the frontend without much load and delay. I'm aware of the fact that Xapian is Open Source and even Free Software, so we could adapt it to our needs if we decided to invest the time and manpower. But taking a quick look around for a solution more suited seems fair, right? Oh, and commercial applications are fine, too. FOSS is not required. Thanks a bunch.

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• What causes player box/world geometry glitches in old games?

  - by Alexander

  I'm looking to understand and find the terminology for what causes - or allows - players to interfere with geometry in old games. Famously, ID's Quake3 gave birth to a whole community of people breaking the physics by jumping, sliding, getting stuck and launching themselves off points in geometry. Some months ago (though I'd be darned if I can find it again!) I saw a conference held by Bungie's Vic DeLeon and a colleague in which Vic briefly discussed the issues he ran into while attempting to wrap 'collision' objects (please correct my terminology) around environment objects so that players could appear as though they were walking on organic surfaces, while not clipping through them or appear to be walking on air at certain points, due to complexities in the modeling. My aim is to compose a case study essay for University in which I can tackle this issue in games, drawing on early exploits and how techniques have changed to address such exploits and to aid in the gameplay itself. I have 3 current day example of where exploits still exist, however specifically targeting ID Software clearly shows they've massively improved their techniques between Q3 and Q4. So in summary, with your help please, I'd like to gain a slightly better understanding of this issue as a whole (its terminology mainly) so I can use terms and ask the right questions within the right contexts. In practical application, I know what it is, I know how to do it, but I don't have the benefit of level design knowledge yet and its technical widgety knick-knack terms =) Many thanks in advance AJ

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