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  • How do you properly organize a commercial game?

    - by Reactorcore
    For the past months I've been studying programming and I've finally learned how to code, but one thing that is confusing me is how to properly organize the design of a game project - code wise. The game I'm building is a pretty standard commercial game. It has the basic components of a normal game: A world, characters and items interacting with each other and all of this is run by game manager. Basically you play as a hero in a world and do stuff. Fight, explore and interact. Think of your standard adventure game that starts off with an intro, goes to the menu system, then gets into the game and back to the menu. Pretty much like 99% of any commercial game or otherwise serious game projects. Thats what I'm aiming at. The problem is: How do you properly code a commercial game architecture? How do you organize it? How do you make it not become unmaintainable spaghetti code? What specific things to keep in mind when building this, codewise? How you can help me: a) Please tell how do you code your own game projects. What is your thought-process when designing the architecture? b) Recommend books, blogs, tutorials, videos or anything else on how to organize a commercial video game. c) Give hints and tips on do's/don'ts when building a game, codewise. Please help!

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  • Ubuntu-installer fails preseed configuration file

    - by user76171
    I try to install Ubuntu 12.04 over network unattended. I installed a DHCP server (Dnsmasq), a TFTP server (tftpd-hpa), I got the netboot.tar.gz archive with the pxelinux.0 file, the pxelinux.cfg directory, the linux kernel and the initrd.gz image and I put a preseed file into my web server. Dnsmasq, tftpd-hpa, pxelinux and Apache are all on the same machine. The PCs MB doesn’t support PXE, so I use iPXE and boot it from a CD. The PC gets an IP from the DHCP, then iPXE loads #pxelinux.cfg/default, which I edited like this: timeout 5 prompt 0 default install label install kernel ubuntu-installer/i386/linux append vga=normal locale=en_GB setup/layoutcode=sl_SI console-setup/layoutcode=sl_SI netcfg/choose_interface=auto initrd=ubuntu-installer/i386/initrd.gz netcfg/get_hostname=ubuntux preseed/url=#http://192.168.10.10/ins/preseed.cfg Then it loads the linux kernel and the initrd.gz image. Then I got a question: Detect keyboard layout? I desided to bother with this later. So I answer No, and then twice on Englishjust to get trough and then I get to the error: The installer failed to process the preconfiguration file from #http://192.168.10.10/ins/preseeed.cfg. The file may be corrupt. I created the file myself and copied the d-I commands into it. I also tried to get the preseed.cfg over a web browser and it works fine. So why is the installer failing?

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  • Code Behaviour via Unit Tests

    - by Dewald Galjaard
    Normal 0 false false false EN-ZA X-NONE X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin-top:0cm; mso-para-margin-right:0cm; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0cm; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} Some four months ago my car started acting up. Symptoms included a sputtering as my car’s computer switched between gears intermittently. Imagine building up speed, then when you reach 80km/h the car magically and mysteriously decide to switch back to third or even second gear. Clearly it was confused! I managed to track down a technician, an expert in his field to help me out. As he fitted his handheld computer to some hidden port under the dash, he started to explain “These cars are quite intelligent, you know. When they sense something is wrong they run in a restrictive program which probably account for how you managed to drive here in the first place...”  I was surprised and thought this was certainly going to be an interesting test drive. The car ran smoothly down the first couple of stretches as the technician ran through routine checks. Then he said “Ok, all looking good. We need to start testing aspects of the gearbox. Inside the gearbox there are a couple of sensors. One of them is a speed sensor which talks to the computer, which in turn will decide which gear to switch to. The restrictive program avoid these sensors altogether and allow the computer to obtain its input from other [non-affected] sources”. Then, as soon as he forced the speed sensor to come back online the symptoms and ill behaviour re-emerged... What an incredible analogy for getting into a discussion on unit testing software? Besides I should probably put my ill fortune to some good use, right? This example provide a lot of insight into how and why we should conduct unit tests when writing code. More importantly, it captures what is easily and unfortunately often the most overlooked goal of writing unit tests by those new to the art and those who oppose it alike - The goal of writing unit tests is to test the behaviour of our code under predefined conditions. Although it is very possible to test the intrinsic workings of each and every component in your code, writing several tests for each method in practise will soon prove to be an exhausting and ultimately fruitless exercise given the certain and ever changing nature of business requirements. Consequently it is true and quite possible whilst conducting proper unit tests, to call any single method several times as you examine and contemplate different scenarios. Let’s write some code to demonstrate what I mean. In my example I make use of the Moq framework and NUnit to create my tests. Truly you can use whatever you’re comfortable with. First we’ll create an ISpeedSensor interface. This is to represent the speed sensor located in the gearbox.  Then we’ll create a Gearbox class which we’ll pass to a constructor when we instantiate an object of type Computer. All three are described below.   ISpeedSensor.cs namespace AutomaticVehicle {     public interface ISpeedSensor     {         int ReportCurrentSpeed();     } }   Gearbox.cs namespace AutomaticVehicle {      public class Gearbox     {         private ISpeedSensor _speedSensor;           public Gearbox( ISpeedSensor gearboxSpeedSensor )         {             _speedSensor = gearboxSpeedSensor;         }         /// <summary>         /// This method obtain it's reading from the speed sensor.         /// </summary>         /// <returns></returns>         public int ReportCurrentSpeed()         {             return _speedSensor.ReportCurrentSpeed();         }     } } Computer.cs namespace AutomaticVehicle {     public class Computer     {         private Gearbox _gearbox;         public Computer( Gearbox gearbox )         {                     }          public int GetCurrentSpeed()         {             return _gearbox.ReportCurrentSpeed( );         }     } } Since this post is about Unit testing, that is exactly what we’ll create next. Create a second project in your solution. I called mine AutomaticVehicleTests and I immediately referenced the respective nunit, moq and AutomaticVehicle dll’s. We’re going to write a test to examine what happens inside the Computer class. ComputerTests.cs namespace AutomaticVehicleTests {     [TestFixture]     public class ComputerTests     {         [Test]         public void Computer_Gearbox_SpeedSensor_DoesThrow()         {             // Mock ISpeedSensor in gearbox             Mock< ISpeedSensor > speedSensor = new Mock< ISpeedSensor >( );             speedSensor.Setup( n => n.ReportCurrentSpeed() ).Throws<Exception>();             Gearbox gearbox = new Gearbox( speedSensor.Object );               // Create Computer instance to test it's behaviour  towards an exception in gearbox             Computer carComputer = new Computer( gearbox );             // For simplicity let’s assume for now the car only travels at 60 km/h.             Assert.AreEqual( 60, carComputer.GetCurrentSpeed( ) );          }     } }   What is happening in this test? We have created a mocked object using the ISpeedsensor interface which we've passed to our Gearbox object. Notice that I created the mocked object using an interface, not the implementation. I’ll talk more about this in future posts but in short I do this to accentuate the fact that I'm not not really concerned with how SpeedSensor work internally at this particular point in time. Next I’ve gone ahead and created a scenario where I’ve declared the speed sensor in Gearbox to be faulty by forcing it to throw an exception should we ask Gearbox to report on its current speed. Sneaky, sneaky. This test is a simulation of how things may behave in the real world. Inevitability things break, whether it’s caused by mechanical failure, some logical error on your part or a fellow developer which didn’t consult the documentation (or the lack thereof ) - whether you’re calling a speed sensor, making a call to a database, calling a web service or just trying to write a file to disk. It’s a scenario I’ve created and this test is about how the code within the Computer instance will behave towards any such error as I’ve depicted. Now, if you’ve followed closely in my final assert method you would have noticed I did something quite unexpected. I might be getting ahead of myself now but I’m testing to see if the value returned is equal to what I expect it to be under perfect conditions – I’m not testing to see if an error has been thrown! Why is that? Well, in short this is TDD. Test Driven Development is about first writing your test to define the result we want, then to go back and change the implementation within your class to obtain the desired output (I need to make sure I can drive back to the repair shop. Remember? ) So let’s go ahead and run our test as is. It’s fails miserably... Good! Let’s go back to our Computer class and make a small change to the GetCurrentSpeed method.   Computer.cs public int GetCurrentSpeed() {   try   {     return _gearbox.ReportCurrentSpeed( );   }   catch   {     RunRestrictiveProgram( );   } }     This is a simple solution, I know, but it does provide a way to allow for different behaviour. You’re more than welcome to provide an implementation for RunRestrictiveProgram should you feel the need to. It's not within the scope of this post or related to the point I'm trying to make. What is important is to notice how the focus has shifted in our approach from how things can break - to how things behave when broken.   Happy coding!

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  • Infrastructure to effectively set up experiements and learn from them

    - by David
    Open-org.com is in the early stages of creating our first product, a place on the web, where one can ask lawyers questions at a fraction of their normal costs. An early stage front page can be found here. I got inspired by this video, which is recommended by Jeff Atwood, which talks about getting feedback faster, which is the reason for this question. The problem Needless to say, we want our conversion rates to be as high as possible. Therefore, we want to be able to rapidly set up a new experiment where we change something on the site (like moving an image slightly, rewriting a sentence etc.). We then want to present the modified page to a random subset of the users. After that we will compare the conversion rates of the experiment with another version. I could very well imagine that we want to run 10-100 experiments simultaneously and it would be nice to have features, where experiments that obviously have worse results will be ended before schedule. My question Does infrastructure to support the whole process exist? A short description of our infrastructure... We use EC2 and PHP and have a script to automatically start up new instances with all needed software. Still, starting up a new server for every experiment, seems like a bit of overkill, so I am wondering what other options exist. Btw. If you feel like working for Open-org.com, you can pick a task, and start working, or suggest a new task. All profits are given out to the contributors.

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  • Cannot restart Ubuntu after replacing Unity with Gnome and purging lightdm

    - by OtagoHarbour
    I am running Ubuntu 11.10. I used the directions here to replace Unity with Gnome. It seemed to work fine until the end of step 2 when I rebooted the computer. When I chose the default option, I just got a black screen. When I choose the restore option and then "Restore normal boot" I get Starting load fallback graphics devices [fail] Starting GNOME Display Manager [ok] Starting Userspace bootsplash [ok] Stopping GNOME Display Manager [ok] Stopping Userspace bootsplash [ok] Starting web server apach22 [fail] (among a lot of OKs) It finally gets to Stopping System V runlevel compatibility [ok] where it hangs. I left it overnight and just had a blank screen when I checked it in the morning. I can "Drop to root shell prompt" and "Drop to root shell prompt with networking". I did see here that one should be able to fix the problem by choosing remount and then doing apt-get install lightdm I tried this as root shell with and without networking and got the message Err http://us.archive.ubuntu.com/ubuntu/ oneric-updates/main lightdm i386 1.0.6-0ubuntu1.7 Could not resolve 'us.archive.ubuntu.com/ubuntu' What is the best way to resolve this problem? Thanks, Peter.

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  • Is it common for a development position to be extremely mundane and not challenging at all? [closed]

    - by Kim Jong Woo
    Hi guys so I am working at this company as a web developer but after 1 week of working here, I realize the stuff I am doing seem to be very easy stuff compared to what my peers who have been around for longer are doing. I am way ahead of my schedule and finish my projects early but it's because the work is not at all hard or problem solving involved. So I am puzzled why I would be thanked over doing such menial tasks. Is this normal? This is driving me nuts, I ask to be given more work and I do get it and still finish it quickly and accurately. Now I am having this paranoia that they are just conspiring to use me for a short period of time and terminate me. Am I going too far with this? I keep losing sleep over this. On days when I have a full load of work to complete, this uneasiness goes away but so far I feel like I am not being allowed to pursue what I thought I would do like solving and designing solutions. A lot of it doesn't require any thinking, just cleaning up other people's code and closing bug tickets.

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  • Am I misunderstanding chown and chmod?

    - by isomorphismes
    I want to either extend the size of my guest partition or figure out how to copy stuff from the guest partition to my normal /home directory. (Because of some other problems I can only run Xorg as guest, but I can log into virtual console as myself or root.) Here's the motivation: I want to torrent a large file. It's larger than my guest filesystem. But I have plenty of space on my real drive, I just can't log into it graphically. So I tried to set up a "pipe" to get the file out of the tmpfs. I did: su -u myself #catch mkdir ~/receiver_dir sudo su cd /tmp/guest-lkj567UIO/ #throw ln -s mario_pipe /home/myself/receiver_dir chown -R guest-lkj567UIO /home/myself/receiver_dir chown -R guest-lkj567UIO /tmp/guest-lkj567UIO/mario_pipe chmod -R a+rw /home/myself/receiver_dir chmod -R a+rw /tmp/guest-lkj567UIO/mario_pipe su -u guest-lkj567UIO cd /tmp/guest-lkj567UIO cd mario_pipe touch something #success! However, when I try to torrent to /tmp/guest-lkj567UIO/mario_pipe, Transmission says I don't have write permissions. But it looks like I just wrote there? And that everybody (a+rw) can write there in fact? Maybe this indicates I don't actually understand chown and chmod but nothing from their man pages pops out.

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  • Cannot see boot options after editing grub background

    - by cipricus
    After solving this problem I managed to get myself into truble again out of nothing by trying to change the display of the dual boot option page in Boot Customizer. I have changed the background, the fonts size (I have increased them) and font style (I have chosen UnDotum). But Boot Customizer gave me an error (I mean a message that the application was closed unexpectedly or smth). I have restarted BootCustomizer and the settings were there. When I rebooted, instead of the normal boot options list, just the background image that I had selected and nothing else. I used Boot Repair to repair grub, it says it did it successfully, but I still get the background image when I try to boot. Any ideas? (Could it be the matter that I chose UnDotum font style? That was installed in Lubuntu - but how could it be accessible in displaying boot options?) The contents of etc/default/grub are: # If you change this file, run 'update-grub' afterwards to update # /boot/grub/grub.cfg. # For full documentation of the options in this file, see: # info -f grub -n 'Simple configuration' GRUB_DEFAULT=0 GRUB_HIDDEN_TIMEOUT=0 GRUB_HIDDEN_TIMEOUT_QUIET=true GRUB_TIMEOUT=10 GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian` GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" GRUB_CMDLINE_LINUX="" # Uncomment to enable BadRAM filtering, modify to suit your needs # This works with Linux (no patch required) and with any kernel that obtains # the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...) #GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef" # Uncomment to disable graphical terminal (grub-pc only) #GRUB_TERMINAL=console # The resolution used on graphical terminal # note that you can use only modes which your graphic card supports via VBE # you can see them in real GRUB with the command `vbeinfo' #GRUB_GFXMODE=640x480 # Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux #GRUB_DISABLE_LINUX_UUID=true # Uncomment to disable generation of recovery mode menu entries #GRUB_DISABLE_RECOVERY="true" # Uncomment to get a beep at grub start #GRUB_INIT_TUNE="480 440 1" I have tried to modify etc/default/grub: GRUB_HIDDEN_TIMEOUT=0 to 10 GRUB_HIDDEN_TIMEOUT_QUIET=true to false and GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" to "" but it doesn't help Also, using Shift doesn't make the list visible. I am looking for something like a command that would reset grub options to default. [When trying to reinstall grub i get to this window in term:

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  • OpenGL ES 2.0 texture distortion on large geometry

    - by Spruce
    OpenGL ES 2.0 has serious precision issues with texture sampling - I've seen topics with a similar problem, but I haven't seen a real solution to this "distorted OpenGL ES 2.0 texture" problem yet. This is not related to the texture's image format or OpenGL color buffers, it seems like it's a precision error. I don't know what specifically causes the precision to fail - it doesn't seem like it's just the size of geometry that causes this distortion, because simply scaling vertex position passed to the the vertex shader does not solve the issue. Here are some examples of the texture distortion: Distorted Texture (on OpenGL ES 2.0): http://i47.tinypic.com/3322h6d.png What the texture normally looks like (also on OpenGL ES 2.0): http://i49.tinypic.com/b4jc6c.png The texture issue is limited to small scale geometry on OpenGL ES 2.0, otherwise the texture sampling appears normal, but the grainy effect gradually worsens the further the vertex data is from the origin of XYZ(0,0,0) These texture issues do not occur on desktop OpenGL (works fine under Windows XP, Windows 7, and Mac OS X) I've only seen the problem occur on Android, iPhone, or WebGL(which is similar to OpenGL ES 2.0) All textures are power of 2 but the problem still occurs Scaling the vertex data - The values of a vertex's X Y Z location are in the range of: -65536 to +65536 floating point I realized this was large, so I tried dividing the vertex positions by 1024 to shrink the geometry and hopefully get more accurate floating point precision, but this didn't fix or lessen the texture distortion issue Scaling the modelview or scaling the projection matrix does not help Changing texture filtering options does not help Disabling mipmapping, or using GL_NEAREST/GL_LINEAR does nothing Enabling/disabling anisotropic does nothing The banding effect still occurs even when using GL_CLAMP Dividing the texture coords passed to the vertex shader and then multiplying them back to the correct values in the fragment shader, also does not work precision highp sampler2D, highp float, highp int - in the fragment or the vertex shader didn't change anything (lowp/mediump did not work either) I'm thinking this problem has to have been solved at one point - Seeing that OpenGL ES 2.0 -based games have been able to render large-scale, highly detailed geometry

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  • Unity Greeter login screen cuts off login options

    - by ammianus
    I have a pretty newly installed Ubuntu 12.04, using Unity. My external monitor is 1920x1080 max resolution. In the Unity desktop itself everything looks great. I have an NVidia graphics card. When I start my computer and get to the Unity greeter login screen the display is oddly formatted and the resolution seems off. It looks like a zoomed view on the larger 1920x1080 screen. As such it crops the login options off to the left hand side of the screen. So I can only just see the edge of the password box for the user I want to log in with. I can log in with one account by default by blindly typing the password, but I am unable to switch to other accounts. Is there anything I can do to fix the log in screen display so that I can see the normal login options? Note: I first noticed it when I changed my desktop background and the next time I logged in I saw the issue.

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  • I'm stuck on User Defined Session destop environment

    - by Dan
    I just installed Ubuntu for the first time dual boot so I get to choose Ubuntu or windows. I then changed the setting where is doesn't ask for my password when booting up. I then installed Edubuntu desktop package. I then hit system and logged out that way i could be at the loggin screen that also lets you select the desktop environment. Edubuntu was not there but User defined session was so i clicked that thinking that might be Edubuntu and logged in. Now im totally stuck. Only walpaper on the screen as i realize now that is normal for user defined session but there is no log out button to change desktop environments now and since I set it to not ask for password at boot up there is no option to change it at start up. If i hit ctrl+alt+del it only lets you shutdown, restart, suspend, or hybernate.... no logg out. I have hit every key on the keybourd hoping something will pop up. I thought this must be a simple noob mistake that there must be endless artiles about this so did searches on google and forums and was shocked to find nothing about this. My next step unless someone can help is to uninstall and reinstall.

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  • What triggered the popularity of lambda functions in modern mainstream programming languages?

    - by Giorgio
    In the last few years anonymous functions (AKA lambda functions) have become a very popular language construct and almost every major / mainstream programming language has introduced them or is planned to introduce them in an upcoming revision of the standard. Yet, anonymous functions are a very old and very well-known concept in Mathematics and Computer Science (invented by the mathematician Alonzo Church around 1936, and used by the Lisp programming language since 1958, see e.g. here). So why didn't today's mainstream programming languages (many of which originated 15 to 20 years ago) support lambda functions from the very beginning and only introduced them later? And what triggered the massive adoption of anonymous functions in the last few years? Is there some specific event, new requirement or programming technique that started this phenomenon? IMPORTANT NOTE The focus of this question is the introduction of anonymous functions in modern, main-stream (and therefore, maybe with a few exceptions, non functional) languages. Also, note that anonymous functions (blocks) are present in Smalltalk, which is not a functional language, and that normal named functions have been present even in procedural languages like C and Pascal for a long time. Please do not overgeneralize your answers by speaking about "the adoption of the functional paradigm and its benefits", because this is not the topic of the question.

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  • Using ant to register plugins and deploy metadata xmls

    - by Gaurav.gg.goyal
    Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times","serif"; mso-fareast-font-family:"Times New Roman"; mso-bidi-font-family:"Times New Roman";} Ant can be used to register plugins directly to MDS. Following is the ant script to register plugin zip:<target name="register_plugin" depends="compile_package">    <echo> Register Plugin : ${plugin.base}/${project.name}.zip</echo>    <java classname="oracle.iam.platformservice.utils.PluginUtility" classpathref="classpath" fork="true">        <sysproperty key="XL.HomeDir" value="${oim.home.server}"/>        <sysproperty key="OIM.Username" value="${oim.username}"/>            <sysproperty key="OIM.UserPassword" value="${oim.password}"/>        <sysproperty key="ServerURL" value="${oim.url}"/>       <sysproperty key="PluginZipToRegister" value="${plugin.base}/${project.name}.zip"/>        <sysproperty key="java.security.auth.login.config" value="${oim.home}\designconsole\config\authwl.conf"/>        <arg value="REGISTER"/>        <redirector error="redirector.err" errorproperty="redirector.err" output="redirector.out" outputproperty="redirector.out"/>    </java>    <copy file="${plugin.base}/${project.name}.zip" todir="${oim.home.server}\plugins"/></target> This script requires following properties: plugin.base project.name oim.home.server oim.username oim.password You can either define a properties file for these properties or define them directly in build.xml. Build.properties will look like: # Set the OIM home here oim.home=C:/Oracle/Middleware02/Oracle_IDM # Set the weblogic home here wls.home=C:/Oracle/Middleware02/wlserver_10.3 OIM.ServerName=oim_server1 # e.g.: used in building the jar and zip files #Note : no spaces in the project name project.name=ScheduledTask_Sample #Set the oim username oim.username=xelsysadm # set the oim password oim.password=Welcome1 WL.Username=weblogic WL.UserPassword=weblogic1 #set the oim URL here oim.url=t3://localhost:14000 WL.url=t3://localhost:7001 #Location from where the metadata files are pickedup for MDS import metadata.location=C:/Project /src/ScheduledTask_Sample /metaxml/ Following is the ANT script to import metadata xml: <target name="ImportMetadata">                 <echo> Preparing for MDS xmls Upload...</echo>                 <copy file="${oim.home}/bin/weblogic.properties" todir="."/>                 <replaceregexp file="weblogic.properties" match="wls_servername=(.*)" replace="wls_servername=${OIM.ServerName}" byline="true"/>                <replaceregexp file="weblogic.properties" match="application_name=(.*)" replace="application_name=OIMMetadata" byline="true"/>                <replaceregexp file="weblogic.properties" match="metadata_from_loc=(.*)" replace="metadata_from_loc=${metadata.location}" byline="true"/>                <copy file="${oim.home}/bin/weblogicImportMetadata.py" todir="."/>                 <replace file="weblogicImportMetadata.py">                      <replacefilter token="connect()" value="connect('${wl.username}', '${wl.password}', '${wl.url}')"/>                </replace>                 <echo> Importing metadata xmls to MDS... </echo>                 <exec dir="." vmlauncher="false" executable="${oim.home}/../common/bin/wlst.sh">                         <arg value="-loadProperties"/>                         <arg value="weblogic.properties"/>                         <arg value="weblogicImportMetadata.py"/>                         <redirector output="deletemd_redirector.out" logerror="true" outputproperty="deletemd_redirector.out" />                </exec>                 <echo>${deletemd_redirector.out}</echo>                 <echo>${deletemd_redirector.out}</echo>                 <echo>Completed metadata xmls import to MDS</echo> </target>

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  • Dualboot harddisk encryption

    - by amfcosta
    I have a system with both Ubuntu 11.10 and Windows 7 and I want to encrypt the whole harddisk or at least some of my partitions. My partition table is something like this (the ones marked with * are the ones that need to be encrypted): Windows boot reserved partition *Windows system partition (ntfs) *Windows data partition (ntfs) Ubuntu root partition (ext4) *Ubuntu home partition (ext4) Ubuntu swap As I said I don't need to encrypt the whole disk. What is the best way to accomplish this? Maybe something (TrueCrypt?) where I enter the password before the system boots so that it decrypts the whole hdd? Or maybe individual encryption using Windows-only encryption (for Windows partitions) and Ubuntu home encryption (well, for Ubuntu home partition)? By the way, I almost always use Ubuntu, so it would be nice if I could continue to boot Ubuntu by default but have an option to boot Windows too (like in grub). EDIT: I was thinking of doing this: encrypting ubuntu home with eCryptfs (I think this is used to encrypt home when selected during installation). Encrypting Windows partitions with TrueCrypt. Still having Grub as a bootloader, when I choose ubuntu everything goes as normal (home is decrypted when login in). When I choose windows the TrueCrypt password prompt shows and windows boots.

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  • Dell Alps Touchpad not working

    - by ppls
    I have a Dell 17R SE with Ubuntu 13.04. The touchpad is recognized as PS/2 mouse out of the box, giving just normal touchpad behaviour, but no tap to click, no scrolling, etc. Most answers related to that issue suggest trying an ALPS driver from dahetral.com: http://www.dahetral.com/public-download For installing I followed the steps on this page: https://www.linuxwind.org/html/dell-touchpad-driver-for-ubuntu-13-04.html Now my xinput looks like this: Virtual core pointer id=2 [master pointer (3)] ? ? Virtual core XTEST pointer id=4 [slave pointer (2)] ? ? PS/2 Mouse id=13 [slave pointer (2)] ? ? AlpsPS/2 ALPS GlidePoint id=14 [slave pointer (2)] ? ? Logitech Bluetooth Mouse M555b id=16 [slave pointer (2)] My touchpad isn't working at all now, just the two hardware buttons for left and right mouse buttons work. Interestingly also the tap to click functions works, but only in the address bar of nautilus, nowhere (!) else. What can I do? I would even switch back to initial state, where at least the basic touchpad functionality worked, i I knew, how to get there.

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  • Sudden drop in Total Indexed pages and increase in 'Not Selected' number.

    - by Pravin
    My blog is around 1 year old and have PR2. The average daily pageviews upto last 1 week were 1800. The total number of posts are 180. Though I have only 180 total posts, the total number of Indexed URL was increasing and it was as high as 510. But in the month of Sept2012, the total number of Indexed pages dropped from 510 to 214. The drop was sudden and it is now increasing very slowly. Also, the other main concern is huge increase in 'Not Selected' number. It is currently 814. I have never posted any post again and never copied any idea from any other blog. But I do use internal linking to some older post those are related to the new posts. The questions are:; Why there is sudden drop in the 'Total Indexed' pages. Why there was increase in total indexed pages to 500 even though the total posts were only 180. As the drop in 'Total Indexed' was in the month of sept2012, I was getting same organic traffic and it was steadily increasing till last week and then there was a 50 drop in the total pageviews. Why. Now, again the traffic is becoming to normal but still there is a problem. Is increase in the 'Not selected' number is a cause of drop in 'Total Indexed'? How to prevent or reduce the number of 'Not Selected' even though I do not have any duplicate post withing blog. Is the 'internal linking' to older post creating 'Not selected' problem? Should I edit my 'Robot.txt' to avoid crawling of labes that may be creating duplicate posts or something like that, if so, what is correct robot.txt. I have uploaded the screenshot of the graph of Webmaster Tools. Please take a look and give suggestions. Please help. Thank you in advance.

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  • SQL SERVER – Caption the Cartoon Contest – Last 2 Days

    - by pinaldave
    Developer’s life is very interesting, we often want to start my day early at a job so we can go home early. However, the day never comes as the life of the developer is always about working late hours. If the developer goes to the office early – there are good chances that his co-workers will come late. Additionally, I am confident that there will be always something urgent for developers or DBA to solve right at the time they are ready to go home. This is the life of the developers!  Here is the interesting story of a DBA who was about to go to the home. He had to take his girlfriend to a movie and dinner in 30 minutes. However, his manager asks him to fix the performance related issues with their production server. In normal case, he had only two choices a) Job or b) Girlfriend. Well, our super hero DBA decided to use efficient tools and improve the performance of the production server in merely 30 minutes. When he was done, his manager was absolutely surprised by his efficiency and accuracy of the work. He asked him following question - Here is the contest – you need to guess what was the answer of our Super Hero DBA. If you guess the answer correct you may win Star Wars R2-D2 Inflatable Remote Controlled device. Additionally, if you Download DB Optimizer before Dec 8, 2012 – you will be eligible for USD 25 Amazon Gift Card (there are total 10 such awards). Please do not leave comments in this thread – to participate in the contest – please leave a comment here in the original contest page. Reference: Pinal Dave (http://blog.sqlauthority.com) Filed under: PostADay, SQL, SQL Authority, SQL Puzzle, SQL Query, SQL Server, SQL Tips and Tricks, T SQL, Technology

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  • Firmware/driver for Broadcom wifi card, PowerBook G4 running Ubuntu 12.04 [duplicate]

    - by user107831
    This question already has an answer here: How to Install Broadcom Wireless Drivers 40 answers This is my first time working with Ubuntu (or Linux), so please be patient. I am running Ubuntu 12.04-powerpc "Precise Pangolin" on a Mac PowerBook G4 with 1.67GHz processor. The firmware/driver for the wifi card is missing. For reasons not worth explaining, I cannot physically plug the computer into the network. I have another computer, a MacBook Pro running OSX, from which I can download files and port them by USB thumb drive. The wifi card in the PowerBook G4 is by Broadcom. The chip is BCM4306, rev. 3. The PCI number is 14e4:4302. I have downloaded b43-fwcutter_015-14_powerpc.deb and dropped it into the Home folder on the Ubuntu machine. However, it will not install. When I double-click, it opens with Ubuntu SoftwareCenter, but the "Install" button is inactive: I can't click it. There's a message beside the inactive button saying, "An older version of 'b43-fwcutter' is available in your normal software channels. Only install this file if you trust the origin." If I "right-click" the .deb file and open with Archive Manager, it shows me the "DEBIAN" and "usr" folders, but I'm unsure what to do from there...and fairly certain this is not the right way to do things. Maybe I have the wrong version of b43-fwcutter for my machine/version of Ubuntu? The documentation for this problem is a mess. It refers to all sorts of out-of-date Ubuntu versions and to an array of different "cutter" and firmware files. Maybe I'd be able to figure this out if I were a more seasoned Ubuntu user, but I have no idea why Sofware Center won't let me do the install. I would be VERY grateful for an explanation of how to get the wifi card working on this machine again. Thank you!

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  • Real life example of an agile game development process outputs

    - by Ken
    I'm trying to learn about applying agile methodologies to game development. But seems to be impossible to find real life examples. There seems to be plenty of material discussing how 'in principle' agile is applied to a game. But that is NOT what I am looking for. I have the Keith book. What I AMlooking for are real EXAMPLES of things like; Initial user stories Final user stories (complete, covering the entire game requirements) Acceptance criteria Task list Sprint backlogs (before and after each sprint) The agile books seem to have some limited examples, many of which seem contrived or limited. In this era of open source software, there must be a publicly available documented example of the process applied to a real game. I am asking specifically about games because they are so different from normal applications. Regular applications are built to all users to complete specific tasks in order to get stuff done(book a room, print a report etc). People play games for much less tangible reasons, so I think the process is significantly different. [it doesn't have to be scrum, it could be any process, just needs to be a real life example game and be reasonably complete]

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  • BI-Applications Special Price Promotion for Partners

    - by Mike.Hallett(at)Oracle-BI&EPM
    Partners should keep in mind the “Midsize Market” pricing promotion for BI-Applications solution packages, with reduced minimums applicable to Oracle's Business Intelligence Products, and a pre-approved 50% discount. ·       Partners additionally get their normal e-business reseller discount. This now makes it most attractive to offer the pre-built BI-Applications such as Manufacturing Analytics, Financial Analytics, Procurement and Spend Analytics, Project Analytics, and Human Resources Analytics, to both customers newly implementing Oracle ERP, and for the many existing Oracle ERP (eBusiness suite, Peoplesoft and JDE) customers. To answer any questions, and to get the partner document with further details of this offer, or to work with us on our local sales campaigns targeting existing ERP customers, please send your query to [email protected] or [email protected]: or discuss it with your local Oracle Sales or Channel representative for Applications to Midsize Enterprises.  This promotion is ONLY for End Customers whose organisations have an Annual Revenue (or Public Sector Budget) below $500 million, and who are based in Europe, the Middle East or Africa. For more information see the orginal article, “New fy13 BI-Applications Price Promotion for MIDSIZE CUSTOMERS”  and send your query to [email protected].

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  • Obstacle Avoidance steering behavior: how can an entity avoid an obstacle while other forces are acting on the entity?

    - by Prog
    I'm trying to implement the Obstacle Avoidance steering behavior in my 2D game. Currently my approach is to apply a force on the entity, in the direction of the normal of the heading, scaled by a number that gets bigger the closer we are to the obstacle. This is supposed to push the entity to the side and avoid the obstacle that blocks it's way. However, in the same time that my entity tries to avoid an obstacle, it Seeks to a point more or less behind the obstacle (which is the reason it needs to avoid the obstacle in the first place). The Seek algorithm constantly applies a force on the entity that pushes it (more or less) in the direction of the obstacle, while the Obstacle Avoidance algorithm constantly applies a force that pushes the entity away (more accurately, to the side) of the obstacle. The result is that sometimes the entity succesfully avoids the obstacle, and sometimes it collides with it, depending on the strength of the avoidance force I'm applying. How can I make sure that a force will succeed in steering the entity in some direction, while other forces are currently acting on the entity? (And while still looking natural). I can't allow entities to collide with obstacles when realistically they should be able to easily avoid them, doesn't matter what they're currently doing. Also, the Obstacle Avoidance algorithm is made exactly for the case where another force is acting on the entity. Otherwise it wouldn't be moving and there would be no need to avoid anything. So maybe I'm missing something. Thanks

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  • Problems with Maverick upgrade

    - by altenuta
    I upgraded to Maverick 10.10 from Lucid. I have an old Toshiba Satellite with a 1.1 MHz and 256MB RAM. Initially I couldn't get my wireless to work. That solved itself after installing various updates and programs. The problems that remain are: I have to authorize at least 2 times at start-up. This machine is Ubuntu only. No boot load screen. I have a ton of programs and system directories that are in my home folder. Is this normal? It is difficult to wake the computer from sleep. Usually I just shut it down and restart. Tonight I waited and got a message about corrupt memory. The computer takes forever to do just about everything. Slow to start programs or doing things on the web. I am a longtime Mac user (since 1986). I also manage a network of several windoze machines. I am definitely a GUI guy and do very little in the terminal so I really need to know where to begin to get things straightened out. Can I rescue this machine without wiping it and doing a fresh install? This is basically a hobby machine. Aside from all the programs and upgrades I've installed, I have almost no files or documents to worry about saving. Anyone have any ideas about the problems I'm having and the best way to proceed? Thanks, Al

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  • Is there such a thing as a super programmer? [closed]

    - by Muhammad Alkarouri
    Have you come across a super programmer? What identifies him or her as such, compared to "normal" experienced/great programmers? Also. how do you deal with a person in your team who believes he is a super programmer? Both in case he actually is or if he isn't? Edit: Interesting inputs all round, thanks. A few things can be gleaned: A few definitions emerged. Disregarding too localised definitions (that identified the authors or their acquaintance as super programmers), I liked a couple definitions: Thorbjørn's definition: a person who does the equivalent of a good team consistently for a long time. Free Electron, linked from Henry's answer. A very productive person, of exceptional abilities. The explanation is a good read. A Free Electron can do anything when it comes to code. They can write a complete application from scratch, learn a language in a weekend, and, most importantly, they can dive into a tremendous pile of spaghetti code, make sense of it, and actually getting it working. You can build an entire businesses around a Free Electron. They’re that good. Contrasting with the last definition, is the point linked to by James about the myth of the genius programmer (video). The same idea is expressed as egoless programming in rwong's comment. They present opposite opinions as whether to optimise for such a unique programmer or for a team. These definitions are definitely different, so I would appreciate it if you have an input as to which is better. Or add your own if you want of course, though it would help to say why it is different from those.

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  • What is UVIndex and how do I use it on OpenGL?

    - by Delta
    I am a noob in OpenGL ES 2.0 (for WebGL) and I'm trying to draw a simple model I've made with a 3D tool and exported to .fbx format. I've been able to draw some models that only have: A vertex buffer, a index buffer for the vertices, a normal buffer and a texture coordinate buffer, but this model now has a "UVIndex" and I'm not sure where am I supposed to put this UVIndex. My code looks like this: GL.bindBuffer(GL.ARRAY_BUFFER, this.Model.House.VertexBuffer); GL.vertexAttribPointer(this.Shader.TextureAndLighting.Attribute["vPosition"],3,GL.FLOAT, false, 0, 0); GL.bindBuffer(GL.ARRAY_BUFFER, this.Model.House.NormalBuffer); GL.vertexAttribPointer(this.Shader.TextureAndLighting.Attribute["vNormal"], 3, GL.FLOAT, false, 0, 0); GL.bindBuffer(GL.ARRAY_BUFFER, this.Model.House.TexCoordBuffer); GL.vertexAttribPointer(this.Shader.TextureAndLighting.Attribute["TexCoord"], 2, GL.FLOAT, false, 0, 0); GL.bindBuffer(GL.ELEMENT_ARRAY_BUFFER, this.Model.House.IndexBuffer); GL.bindTexture(GL.TEXTURE_2D, this.Texture.HTex1); GL.activeTexture(GL.TEXTURE0); GL.drawElements(GL.TRIANGLES, this.Model.House.IndexBuffer.Length, GL.UNSIGNED_SHORT, 0); But my model renders totally incorrect and I think it has to do with the fact that I am ignoring this "UVIndex" in the .fbx file, since I've never drawn any model that uses this UVIndex I really have no clue on what to do with it. This is the json file containing the model's data: http://pastebin.com/raw.php?i=G294TVmz

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  • Connect to bluetooth device from command line

    - by Ilari Kajaste
    Background: I'm using my bluetooth headset as audio output. I managed to get it working by the long list of instructions on BluetoothHeadset community documentation, and I have automated the process of activating the headset as default audio output into a script, thanks to another question. However, since I use the bluetooth headset with both my phone and computer (and the headset doesn't support two input connections) in order for the phone not to "steal" the connection when handset is turned on, I force the headset into a discovery mode when connecting to the computer (phone gets to connect to it automatically). So even though the headset is paired ok and would in "normal" scenario autoconnect, I have to always use the little bluetooth icon in the notification area to actually connect to my device (see screenshot). What I want to avoid: This GUI for connecting to a known and paired bluetooth device: What I want instead: I'd want to make the bluetooth do exactly what the clicking the connect item in the GUI does, only by using command line. I want to use command line so I can make a single keypress shortcut for the action, and would't need to navigate the GUI every time I want to establish a connection to the device. The question: How can I attempt to connect to a specific, known and paired bluetooth device from command line? Further question: How do I tell if the connection was successful or not?

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