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  • Ubuntu Desktop does not load

    - by Niklas
    If I login on my Ubuntu 14.04, I get the following desktop: This weird behavior appeared after I executed sudo apt-get update && sudo apt-get upgrade and restarted my computer. Don't know why though. To my Ubuntu I have tried the following (nothing seems to work so far) Fix any broken packages: sudo apt-get update sudo apt-get autoclean sudo apt-get clean sudo apt-get autoremove Locate any broken packages and reinstall them: sudo apt-get install debsums sudo apt-get clean sudo debsums_init sudo debsums -cs sudo apt-get install --reinstall $(sudo dpkg -S $(sudo debsums -c) | cut -d : -f 1 | sort -u) Removing some compiz files: rm -r ~/.cache/compizconfig-1 rm -r ~/.compiz Purging of NVIDIA and installing NVIDIA-prime: sudo apt-get install --reinstall ubuntu-desktop sudo apt-get install unity sudo apt-get purge nvidia* bumblebee* sudo apt-get install nvidia-prime sudo shutdown -r now Compizconfig Settings Manager: sudo apt-get install compizconfig-settings-manager export DISPLAY=:0 ccsm // Back to UI and enablement of Unity Plugin Unity replace, which stopped at a while and did nothing afterwards unity --replace Some dconf reset dconf reset -f /org/compiz/ unity --reset-icons &disown Actually dconf did not work and I got this error: error: Cannot autolaunch D-Bus without X11 $DISPLAY Can anybody help me on that? This is my hardware (hope it helps in any way): Intel® Core™ i7-3770 ASUS GTX660TI-DC2-OG-2GD5 (NVIDIA driver is/was installed) ASUS P8Z77-V LX Corsair DIMM 8 GB DDR3-1600 Kit Samsung 830series 2,5" 256 GB (Windows is installed here) Seagate ST31000524AS 1 TB (3/4 are reserved for files; 1/4 is for Ubuntu (16GB swap included))

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  • Why is C++ often the first language taught in college?

    - by Casey Patton
    My school starts the computer science curriculum with C++ programming courses, meaning this is the first language that many of the students learn. I've seen that many people dislike C++, and I've read a variety of reasons why. It almost seems to be popular opinion that C++ isn't a very good language. I get the impression it's not very liked based on some questions on StackExchange as well as posts such as: http://damienkatz.net/2004/08/why-c-sucks.html http://blogs.kde.org/node/2298 http://blogs.cio.com/esther_schindler/linus_torvalds_why_c_sucks http://www.dacris.com/blog/2010/02/16/why-c-sucks-part-2/ etc. (Note: It is not my opinion that C++ is a bad language. In fact, it's the main language I use. However, the internet as well as some professors have given me the impression that it's not a very widely liked language. In fact, one of my professor constantly rags on C++, yet it's still the starting language at my college!) With that in mind, why is this the first language taught at many schools? What are the reasons for starting a programming curriculum with C++? Note: This question is similar to "Is C++ suitable as a first language", but is a little different since I'm not interested in whether it's suitable, but why it's been chosen.

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  • Simple Architecture Verification

    - by Jean Carlos Suárez Marranzini
    I just made an architecture for an application with the function of scoring, saving and loading tennis games. The architecture has 2 kinds of elements: components & layers. Components: Standalone elements that can be consumed by other components or by layers. They might also consume functionality from the model/bottom layer. Layers: Software components whose functionality rests on previous layers (except for the model layer). -Layers: -Models: Data and it's behavior. -Controllers: A layer that allows interaction between the views and the models. -Views: The presentation layer for interacting with the user. -Components: -Persistence: Makes sure the game data can be stored away for later retrieval. -Time Machine: Records changes in the game through time so it's possible to navigate the game back and forth. -Settings: Contains the settings that determine how some of the game logic will apply. -Game Engine: Contains all the game logic, which it applies to the game data to determine the path the game should take. This is an image of the architecture (I don't have enough rep to post images): http://i49.tinypic.com/35lt5a9.png The requierements which this architecture should satisfy are the following: Save & load games. Move through game history and see how the scoreboard changes as the game evolves. Tie-breaks must be properly managed. Games must be classified by hit-type. Every point can be modified. Match name and player names must be stored. Game logic must be configurable by the user. I would really appreciate any kind of advice or comments on this architecture. To see if it is well built and makes sense as a whole. I took the idea from this link. http://en.wikipedia.org/wiki/Model%E2%80%93view%E2%80%93controller

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  • Browser privacy improvement implications for websites

    - by phq
    On https://panopticlick.eff.org/ EFF let you test the number of uniquely identifying bits that the browser gives a website. Among these are HTTP header fields such as User-Agent, Accept, Accept-Language and later perhaps ETAG and If-Modified-Since. Also there is a lot of Information that javascript can get from the browser such as time-zone, screen resolution, complete list of fonts and plugins available. My first impression is, is all this information really usable/used on a majority of all websites? For example, how many sites does really send different content-types depending on the http accept header, or what fonts are available(I thought css had taken care of this)? Let's say of these headers/js functionality on day would be gone. Which ones would; never be noticed they were gone? impact user experience? impact server performance? immediately reimplemented because the Internet cannot work without it? Extra credit for differentiating between what can be done, what should be done and what is done in most situations.

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  • Nifty GUI Layout

    - by Jason Crosby
    I am new to JME3 game engine but I know Android XML GUI layouts pretty good. I have a simple layout here and I cant figure out what is wrong. Here is my XML code: <?xml version="1.0" encoding="UTF-8"?> <nifty xmlns="http://nifty-gui.sourceforge.net/nifty-1.3.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://nifty-gui.sourceforge.net/nifty-1.3.xsd http://nifty-gui.sourceforge.net/nifty-1.3.xsd"> <useControls filename="nifty-default-controls.xml" /> <useStyles filename="nifty-default-styles.xml" /> <screen id="start" controller="com.jasoncrosby.game.farkle.gui.MenuScreenGui"> <layer id="layer" backgroundColor="#66CD00" childLayout="center"> <panel id="panel" align="center" valign="center" childLayout="center" visibleToMouse="true"> <image filename="Textures/wood_floor.png" height="95%" width="95%"/> <panel id="panel" align="center" valign="center" childLayout="center" visibleToMouse="true"> <text text="test" font="Interface/Fonts/Eraser.fnt"></text> </panel> </panel> </layer> </screen> Everything works good until I get to displaying the text. I have tried different alignments and tried moving the text into different panels but no matter what I do the text is never in the center of the screen. Its always in the upper left corner so far I can only see the lower right part of the text. I'm sure it has to be something simple but since I'm new to this I'm not noticing anything. Thanks for the help in advance.

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  • both IPV4 and IPV6 at the same time over DSL connection?

    - by namiheike
    Let me describe my situation: while I connect computer with the wire, I've got an IPV6 address automatically, there's a "Wired connection" tab in network manager, and I can access an website that support IPV6 (google,facebook,twitter...)with a hosts file, or use the proxy like google.com.sixxs.org But if I want to access the whole internet, I have to create a DSL connection with username and password that ISP gave me. BUT after I change my connection into this DSL connection, I cannot access website over IPV6, even there's the site's ipv6 address in /etc/hosts, then I realize that I lose my IPV6 connection, because the ping6 says connect: Network is unreachable. the problem is, there's no IPV6 tab or options about IPV6 in the configure of DSL connection. It feels like I can only use one connection at the same time, but the DSL doesn't support IPV6 and the wired connection doesn't support IPV4(I mean, there's no way to input the password the ISP gave me) maybe make somebody uncomfortable, but when I work in MS windows, there's no such problem, (maybe just feel like) I can access V4 and V6 at the same time. So how to solve with this? thanks a lot. I'm in 11.10 + gnome3

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  • How to associate all file types within Wine with its corresponding native application?

    - by MestreLion
    This is easily done for a single file type, as answered in How to associate a file type within Wine with a native application?, by creating a .reg for the desired filetype. But this is for AVI only. I use some wine apps (uTorrent, Soulseek, Eudora, to name a few) that can launch a wide range of files. Email attachments, for example, can be JPG, DOC, PDF, PPS... its impossible (and not desirable) to track down all possible file types that one may receive in an email or download in a torrent. So I neeed a solution to be more generic and broad. I need the file association to honor whatever native app is currently configured. And I want this to be done for all file types configured in my system. I've already figured out how to make the solution generic. Simply replacing the launched app in .reg for winebrowser, like this: [HKEY_CLASSES_ROOT\.pdf] @="PDFfile" "Content Type"="application/pdf" [HKEY_CLASSES_ROOT\PDFfile\Shell\Open\command] @="C:\\windows\\system32\\winebrowser.exe \"%1\"" Ive tested this and it works correctly. Since winebrowser uses xdg-open as a backend, and converts my windows path to a Unix one, the correct (Linux) app is launched. So I need a "batch" updater to wine's registry, sort of a wine-update-associations script that I can run whenever a new app is installed. Maybe a tool that can: List all Mime Types types in my system that have a default, installed app associated Extract all the needed info (glob, mime type, etc) Generate the .REG file in the above format The tricky part is: i've searched a LOT to find info about how association is done in Ubuntu 10.10 onwards, and documentation is scarce and confusing, to say the least. Freedesktop.org has no complete spec, and even Gnome docs are obsolete. So far I've gathered 4 files that contain association info, but im clueless on which (or why) to use, or how to use them to generate the .reg file: ~/.local/share/applications/mimeapps.list ~/.local/share/applications/miminfo.cache /usr/share/applications/miminfo.cache /etc/gnome/defaults.list Any help, script or explanation would be greatly appreciated! Thanks!

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  • Can not login Dashboard / Unable to find the server at mykeystoneurl

    - by neo0
    I installed Dashboard following this guide: http://wiki.openstack.org/OpenStackDashboard Everything fine, but when I run the server, I can not login with the username and password in DATABASE config in local_settings.py. Here's my config: DATABASES = { 'default': { 'ENGINE': 'django.db.backends.mysql', 'NAME': 'dashboarddb', 'USER': 'nova', 'PASSWORD': 'nova', 'HOST': 'localhost', 'default-character-set': 'utf8' }, } When I run the Dashboard server and enter username + password. It returned this error on browser: Unable to find the server at mykeystoneurl (HTTP 400) And in the command line: DEBUG:openstack_dashboard.settings:Running in debug mode without debug_toolbar. DEBUG:openstack_dashboard.settings:Running in debug mode without debug_toolbar. Validating models... 0 errors found Django version 1.3.1, using settings 'openstack_dashboard.settings' Development server is running at http://0.0.0.0:8888/ Quit the server with CONTROL-C. Request returned failure status. Traceback (most recent call last): File "/home/us/horizon/.venv/src/python-keystoneclient/keystoneclient/client.py", line 121, in request body = json.loads(body) File "/usr/lib/python2.7/json/__init__.py", line 326, in loads return _default_decoder.decode(s) File "/usr/lib/python2.7/json/decoder.py", line 366, in decode obj, end = self.raw_decode(s, idx=_w(s, 0).end()) File "/usr/lib/python2.7/json/decoder.py", line 384, in raw_decode raise ValueError("No JSON object could be decoded") ValueError: No JSON object could be decoded [06/Mar/2012 15:20:03] "POST /auth/login/ HTTP/1.1" 200 3735 I also tried login as "admin" with password is "password" or "secrete" but I didn't work. What's wrong? Thank you!

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  • Are the Ubuntu ISO images updated From release .ubuntu.com

    - by tijybba
    Just got idea from this(may not be related though) question however. Are the ISO images from the official site updated with updates in Core Ubuntu system , like Kernel Updates , desktop Environment Updates(unity), i mean Updates of BASE system including X-org, Office suite, Package Manager , Update manager or Gnome Base Modules, those released in update Branches like precise-Updates branch. The reason i am asking this is , if i download the ISO image of Ubuntu 12.04 Say after two or three months from release , i have to do an update of approximately 200~300 MB's size. So why are these ISO images not updated to recent updates, i am aware that all of the components are not updated at the same time , but let's say after One month from actual release ( Both LTS and normal releases), the updated components can be added to form a Updated ISO in regular intervals, which provides new users to use latest versions and features with improved stability and less bandwidth Consumption. I am not mentioning the idea of comparison to Rolling Release , or External PPA's added updates , and neither Netinstal but the ISO of updated Packages .This can be provided as optional download. Since my question is within the boundary of Official updates releases so stability could not be the reason. I guess there are custom packagers out there , but having an official option would be better. It helps in distributing Newest ISO OS which impresses a lot new users , since it makes availability of newer features and a faster system ofcourse. Another reason of asking this is here. Edit: Since almost all new (Desktop) users download the Default ISO's having one or few issue , which may have been corrected in following updates. But most of new laptop users i encountered gave up because of it , so should i suggest ,for laptop not listed on Certified H/W list , to try daily Builds , if needed.

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  • How to build the mainline kernel source package?

    - by Maxime R.
    Ubuntu kernel PPA only provides linux-headers*.deb and linux-image*.deb packages. How can I build the corresponding linux-source*.deb package ? Context: I'm currently running Ubuntu 11.10 with the mainline kernel (3.2 rc6 now) to get a better support for my sandybridge IGP (Dell E6420 laptop with intel i5-2520M CPU). Appears, i'd like to install this touchpad driver, ALPS touchpads being badly supported (see previous link bug report), while waiting for upstream support in kernel version 3.3. Problem is, DKMS keeps complaining about not finding the full kernel source: Module build for the currently running kernel was skipped since the kernel source for this kernel does not seem to be installed. Appears I may not need the full source but I'd still like to try having it installed to see if it solve my problem. What I tried : Uncompressing the kernel.org source archive in /usr/src/. DKMS still complaining. Manually updating the kernel source package with uupdate and the mainline source package like explained here. Did not succeed. Manually building the linux-source package following @roadmr and @elmicha instructions. I eventually succeeded to build it but DKMS still complained about the missing source. At last I noticed an error I did not catch in the first place while reinstalling the kernel headers. Appears the .deb I got may have been corrupted, downloading it again did the trick :) Alas, while DKMS agreed to compile the module i ran into the following error which appears to have already been reported. This issue isn't yet solved but I won't try to because of the following: in the end I decided to test the precise kernel version 3.2-rc6 through the xorg-edgers ppa which appears to be correctly patched: it works. Nevertheless, it might still be of some interest to know how to build the mainline linux-source package as the Ubuntu Kernel Team doesn't provide it. Not to mention that I learned a lot in the process ^^

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  • How can I pass referrer header from my https domain to http domains?

    - by nutcracker
    My website is 100% https. I have links to other http domains. The referrer header is not set when linking from a https page to a http page. From http://en.wikipedia.org/wiki/HTTP_referrer If a website is accessed from a HTTP Secure (HTTPS) connection and a link points to anywhere except another secure location, then the referer field is not sent. I would prefer that other domains can see the referrer so that they know that traffic comes from my domain. Is there a way to force this header or is there another solution? Update I've done some basic testing using a redirect: http page -- link to http --> 301 redirect --> http page = referrer intact https page -- link to https --> 301 redirect --> http page = referrer blank https page -- link to http --> 301 redirect --> http page = referrer blank https page -- link to http --> 302 redirect --> http page = referrer blank The referrer is lost when linking from a https page to a http redirect page on my own domain. So there is no referrer on the redirect.

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  • Middle tier language for interfacing C/C++ with db and web app

    - by ggkmath
    I have a web application requiring a middle-tier language to communicate between an oracle database and math routines on a Linux server and a flex-based application on a client. I'm not a software expert, and need recommendations for which language to use for the middle-tier. The math routines are currently in Matlab but will be ported to C (or C++) as shared libraries. Thus, by default there's some C or C++ communication necessary. These routines rely on FFTW (www.fftw.org), which is called directly from C or C++ (thus, I don't see re-writing these routines in another language). The middle tier must manage traffic between the client, the math routines, and the Oracle database. The client will trigger the math routines aynchronously, and the results saved in the db and transferred back to the client, etc. The middle-tier will also need to authenticate user accounts/passwords, and send out various administrative emails. Originally I thought PhP the obvious choice, but interfacing asychronously multiple clients with the C or C++ routines doesn't seem straightforward. Then I thought, why not just keep the whole middle tier in C or C++, but I'm not sure if this is done in the industry (C or C++ doesn't seem as web-friendly as other languages). There's always Jave + JNI, but maybe that introduces other complications (not sure). Any feedback appreciated.

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  • Starting with text based MUD/MUCK game

    - by Scott Ivie
    I’ve had this idea for a video game in my head for a long time but I’ve never had the knowledge or time to get it done. I still don’t really, but I am willing to dedicate a chunk of my time to this before it’s too late. Recently I started studying Lua script for a program called “MUSH Client” which works for MU* telnet style text games. I want to use the GUI capabilities of Mush Client with a MU* server to create a basic game but here is my dilemma. I figured this could be a suitable starting place for me. BUT… Because I’m not very programmer savvy yet, I don’t know how to download/install/use the MU* server software. I was originally considering Protomuck because a few of the MU*s I were more impressed with began there. http://www.protomuck.org/ I downloaded it, but I guess I'm too used to GUI style programs so I'm having great difficulty figuring out what to do next. Does anyone have any suggestions? Does anyone even know what I'm talking about? heh..

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  • Windows Azure Event

    - by Blog Author
    Get cloud ready with Windows Azure The cloud is everywhere and here at Microsoft we’re flying high with our cloud computing release, Windows Azure. As most of you saw at the Professional Developers Conference, the reaction to Windows Azure has been nothing short of “wow” – and based on your feedback, we’ve organized this special, all-day Windows Azure Firestarter event to help you take full advantage of the cloud. Maybe you've already watched a webcast, attended a recent MSDN Event on the topic, or done your own digging on Azure. Well, here's your chance to go even deeper. This one-of-a-kind event will focus on helping developers get ‘cloud ready’ with concrete details and hands-on tactics. We’ll start by revealing Microsoft’s strategic vision for the cloud, and then offer an end-to-end view of the Windows Azure platform from a developer’s perspective. We’ll also talk about migrating your data and existing applications (regardless of platform) onto the cloud. We’ll finish up with an open panel and lots of time to ask questions. Following this event, please join us for an engaging conversation about any and all Cloud Computing topics. This FREE event is hosted by Northwest Cloud, the cloud agnostic community group, and sponsored by Microsoft. http://www.nwcloud.org/redmond/2010-04-06

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  • Floodfill algorithm for GO

    - by user1048606
    The floodfill algorithm is used in the bucket tool in MS paint and photoshop, but it can also be used for GO and minesweeper. http://en.wikipedia.org/wiki/Flood_fill In go you can capture groups of stones, this website portrays it with two stones. http://www.connectedglobe.com/mindy/cap6.html This is my floodfill method in Java, it is not capturing a group of stones and I have no idea why because to me it makes sense. public void floodfill(int turn, int col, int row){ for(int a = col; a<19; a++){ for(int b = row; b<19; b++){ if(turn == black){ if(stones[col][row] == white){ stones[col][row] = 0; floodfill(black, col-1, row); floodfill(black, col+1, row); floodfill(black, col, row-1); floodfill(black, col, row+1); } } } } } It searches up, down, left, right for all the stones on the board. If the stones are white it captures them by making them 0, which represents empty.

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  • Find meeting point of 2 objects in 2D, knowing (constant) speed and slope

    - by Axonn
    I have a gun which fires a projectile which has to hit an enemy. The problem is that the gun has to be automatic, i.e. - choose the angle in which it has to shoot so that the projectile hits the enemy dead in the center. It's been a looooong time since school, and my physics skills are a bit rusty, but they're there. I've been thinking to somehow apply the v = d/t formula to find the time needed for the projectile or enemy to reach a certain point. But the problem is that I can't find the common point for both the projectile and enemy. Yes, I can find a certain point for the projectile, and another for the enemy, but I would need lots of tries to find where the point coincides, which is stupid. There has to be a way to link them together but I can't figure it out. I prepared some drawings and samples: A simple version of my Flash game, dumbed down to the basics, just some shapes: http://axonnsd.org/W/P001/MathSandBox.swf - click the mouse anywhere to fire a projectile. Or, here is an image which describes my problem: So... who has any ideas about how to find x3/y3 - thus leading me to find the angle in which the weapon has to tilt in order to fire a projectile to meet the enemy? EDIT I think it would be clearer if I also mention that I know: the speed of both Enemy and Projectile and the Enemy travels on a straight vertical line.

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  • What is the `ServerName` attribute for apache2 and what does it do?

    - by freddydoggie
    I do not know what this config setting means. Does it mean that it registers a domain name? Is it like DNS? Here is what I have for my apache2 default config ServerName staugie.org ServerAdmin webmaster@localhost DocumentRoot /var/www <Directory /> Options FollowSymLinks Indexes MultiViews AllowOverride All </Directory> <Directory /var/www/> Options Indexes FollowSymLinks MultiViews AllowOverride All Order allow,deny allow from all </Directory> ScriptAlias /cgi-bin/ /usr/lib/cgi-bin/ <Directory "/usr/lib/cgi-bin"> AllowOverride All Options +ExecCGI -MultiViews +SymLinksIfOwnerMatch Order allow,deny Allow from all </Directory> ErrorLog ${APACHE_LOG_DIR}/error.log # Possible values include: debug, info, notice, warn, error, crit, # alert, emerg. LogLevel warn CustomLog ${APACHE_LOG_DIR}/access.log combined Alias /doc/ "/usr/share/doc/" <Directory "/usr/share/doc/"> Options Indexes MultiViews FollowSymLinks AllowOverride None Order deny,allow Deny from all Allow from 127.0.0.0/255.0.0.0 ::1/128 </Directory> also, is there any way to register a free domain through the apache foundation?

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  • Collision and Graphics integration

    - by Shlomi Atia
    I'm a little confused about the integration between collision and graphics. They both need to share the same position in the world. The most obvious choice is the center of the entity, which is good for bounding volumes and fixed sized sprites. However, for characters with variable height size sprites like this: http://gamemedia.wcgame.ru/data/2011-07-17/game-sprite-sheet.jpg This is no longer good. The character won't align to the ground if I'll draw it from the center. I can just make the sprites the same height, but it will be a waste of memory (the largest sprite is 4 times larger then the smallest one). Even then, this is not an option at all with skeletal sprites like this one: http://user-generated-content.java-gaming.org/img-vault/212a171fc1ebb27ab77608fb9b2dd9bd9205361ce6300b21a7f8d06d025fbbd8.png It seems that the graphics need to be drawn from the ground for characters, but not for other images such as scenery and obstacles. The only solution I could think of was having another position called draw-position, which is the entity center for images, and is the the bottom of the collision volume for characters. Then when I draw relative to that position, it should work properly. I haven't found any references for something like that, so I'm kinda insecure about it. Does anyone knows of a better approach for this problem? Thanks

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  • Multi-Resolution Mobile Development

    - by user2186302
    I'm about to start development on my first game for mobile phone (I already have a flash prototype completed so it's jsut a matter of "porting" it to mobile and fixing up the code) and plan on hopefully being able to get the game working on iphones and most android devices. I am using Haxe along with OpenFL and HaxeFlixel for development. My question is: What resolution should I design the game in initially and/or what is the best way to develop a game for multiple resolutions. I have found multiple different methods, the best, in my opinion, being strategy 3 on this page: http://wiki.starling-framework.org/manual/multi-resolution_development. However I have some questions about this. First, what would the best base resolution to use be, the guide suggests 240*320 which seems alright to me, although if I chose to use pixel graphics as I most probably will given I'm using HaxeFlixel, I'm not sure if they'll look too blocky on larger screens which I'm not even sure is a problem as it might still look alright. (Honestly, not sure about that and if anyone has any examples of games that use this method and look nice). Finally, please feel free to share whatever methods you use and think is best. For example, HaxeFlixel has a scaling feature that scales the game to fit the exact screen size, but I'm afraid that would lead to blurry and improperly scaled graphics since it would scale by non-integers. But, I'm not sure how noticeable a problem that may or may not be. Although from experience I'm pretty sure it won't look nice and currently I do not think I'm going to go for this option. So, I would really appreciate any help on this subject. Thank you in advance.

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  • Oracle VM Virtualbox 4.0 extension packs

    - by wim.coekaerts
    Some people have asked what this new extension pack is in Oracle VM Virtualbox 4.0 and how it's different from 3.2 and earlier releases. The extension pack is a restructuring of how Oracle VM VirtualBox is installed. Please take a look at http://virtualbox.org and read up on what the product install looked like prior to 4.0, you'll see the following : There were 2 versions to download : - Oracle VM VirtualBox (open source edition) OSE - download of the source tarball with a GPL license + compile needed to run. - Oracle VM VirtualBox PUEL (personal use/eval license) - download of an installable binary with a number of additional non-gpl license drivers, usb2, sata, pxe boot for e1000, vrdp server etc., all built in to the install. This contained the OSE edition + additional drivers with the installer. Customers could purchase an enterprise software license for the latter version. To make it easier to build and release additional drivers, they have been separated out and are now installed through an "extension pack" starting with Oracle VirtualBox version 4. This extension pack is still licensed the same way as in every prior version, via a PUEL license or with the ability to purchase a commercial license. It is now also possible for other companies or users that want to add extensions to do so by creating a similar extension pack -- and there's no need to do a new release of the entire product to do so. So it's a more flexible structure for installing VirtualBox and drivers and allows for more modular additions. The source code of Oracle VM Virtualbox is, of course, still available just like in 3.x, for 4.0. Like 3.x, not for the additional drivers which are now in the extension pack.

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  • Eclipse Java Code Formatter in NetBeans Plugin Manager

    - by Geertjan
    Great news for Eclipse refugees everywhere. Benno Markiewicz forked the Eclipse formatter plugin that I blogged about sometime ago (here and here)... and he fixed many bugs, while also adding new features. It's a handy plugin when you're (a) switching from Eclipse to NetBeans and want to continue using your old formatting rules and (b) working in a polyglot IDE team, i.e., now the formatting rules defined in Eclipse can be imported into NetBeans IDE and everyone will happily be able to conform to the same set of formatting standards. And now you can get it directly from Tools | Plugins in NetBeans IDE 7.4: News from Benno on the plugin, received from him today: The plugin is verified by the NetBeans community and available in the Plugin Manager in NetBeans IDE 7.4 (as shown above) and also at the NetBeans Plugin Portal here, where you can also read quite some info about the plugin:  http://plugins.netbeans.org/plugin/50877/eclipse-code-formatter-for-java The issue with empty undo buffer was solved with the help of junichi11: https://github.com/markiewb/eclipsecodeformatter_for_netbeans/issues/18 The issue with the lost breakpoints remains unsolved and there was no further feedback. That is the main reason why the save action isn't activated by default. See also the open known issues at https://github.com/markiewb/eclipsecodeformatter_for_netbeans/issues?state=open Features are as follows:  Global configuration and project specific configuration.  On save action, which is disabled by default. Show the used formatter as a notification, which is enabled by default.  Finally, Benno testifies to the usefulness, stability, and reliability of the plugin: I use the Eclipse formatter provided by this plugin every day at work. Before I commit, I format the sources. It works and that's it. I am pleased with it. Here's where the Eclipse formatter is defined globally in Tools | Options: And here is per-project configuration, i.e., use the Project Properties dialog of any project to override the global settings:  Interested to hear from anyone who tries the plugin and has any feedback of any kind! 

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  • Ubuntu 12.04 Precise on Dell Inspirion Duo

    - by Roman M. Kos
    I installed 12.04 version of Ubuntu on my Dell Inspiron Duo. After installing with help of program like UNetBootIn or smth like that. ( Besides i have no problem with kernel panic on chargin on/off like in 11.10. ) After that i followed with steps from here, in the first post here: http://ubuntuforums.org/showthread.php?t=1658635 There left one big problem with touchscreen: When i whant to drag with touchscreen like i`m doing it with mouse (for ex. selecting multile files with mouse) the selectable rectangular doesnot shows while im dragging, when dragging was finished (i put my finger off) it shows the rectangular and hides it. This thing disables all my tries to drag a window or smth else.... Also some time after using touchscreen such things are disabeling: - Often - click from a mouse (after keyboard using functinality restores) - less often - mouse movement disables (sometimes restores sometimes not) - lesser than other - keyboards works but no sygnals accepting (keyoards has indicator, so thay react, mouse of course not) The test from eTouchU utility passes perfeclty. Any idia for solving this problem? P.S.: Im from Ukraine, so sorry if my possible grammar mistakes. P.P.S.: Besides how to know the physicall position of my tabled mode? For automaticall rotating. Like on each rotation do some script.

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  • Unable To Get Sound Working to External Speaker on HP TouchSmart 320 on 11.04 or 11.10

    - by Schof
    This is an HP TouchSmart 320, model number 320-1200m. I'm using Ubuntu 11.04. Hardware information: root@hp320:/home/mpower# aplay -l **** List of PLAYBACK Hardware Devices **** card 0: Generic [HD-Audio Generic], device 0: STAC92xx Analog [STAC92xx Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 root@hp320:~$ cat /proc/asound/card0/codec#0 | grep Codec Codec: IDT 92HD91BXX Sound to headphone jack works properly, but sound to built-in speakers does not work. I have installed Windows, and with Windows 7 installed, all audio hardware works properly, so this isn't a hardware fault. I've looked at https://help.ubuntu.com/community/HdaIntelSoundHowto and have been unable to find my card in http://www.kernel.org/doc/Documentation/sound/alsa/HD-Audio-Models.txt . I have tried adding almost every conceivable model in the line "options snd-hda-intel model=MODEL" line I added to /etc/modprobe.d/alsa-base.conf. Update 2011-11-09 2:31 PM PST: I've gone to Control Center - Sound Preferences to attempt settings that make sound work. The "Hardware" tab shows one device: "Internal Audio 1 Output / 1 Input Analog Stereo Duplex." There are two output profiles listed in the selection box at the bottom of the tag: Analog Stereo Duplex and Analog Stereo Output. Neither cause sound to emit from the speakers. I've also run alsamixer on the command-line and ensured that everything is set to maximum and nothing is muted. Update 2011-11-09 5:15 PM PST: I've replicated the exact same symptoms in 11.10. Update 2011-11-10 11:31 AM PST: I've filed a bug in launchpad: https://launchpad.net/ubuntu/+source/alsa-driver/+bug/888703

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  • https:// search results appearing on Google for purely http:// site

    - by hydrurga
    I started weeding through my site's search results from Google today, using a site: search, to determine if there are any links that cause 404s and thus need redirecting. To my amazement I noticed numerous https:// results relating to various pages. My site doesn't have a SSL certificate, doesn't serve such pages, doesn't internally link to https:// pages, doesn't include any such files in its sitemap.xml and, for all of these, never has. I decided to do a Google search for https://<my site> and found one site that incorrectly refers to the root of my site with a https:// prefix - I will try to contact them to get them to correct this. I'm not sure however how Googlebot managed to index the non-root files as https://. I can't find any external links to them and surely, without certification, Googlebot should have stalled at the first request? I've just added the following lines to the site's .htaccess (although the surfer still has to navigate through the browser's "This site is a security risk. Abandon hope all ye who enter here!" message(s) first to get there): RewriteEngine On RewriteCond %{HTTPS} on RewriteRule ^(.*)$ http://www.<my site>.org/$1 [R=301,L] replacing <my site> with my domain name. My big question is this though - I would like to use the Google Webmaster Tools Remove URLs feature to remove the https:// pages from the index. Can I be guaranteed that this will only remove the https:// versions of each relevant page and not the valid http:// versions? My thanks to anyone who can help me out with this particular question and the issue in general.

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  • Calling a .NET C# class from XSLT

    - by HanSolo
    If you've ever worked with XSLT, you'd know that it's pretty limited when it comes to its programming capabilities. Try writing a for loop in XSLT and you'd know what I mean. XSLT is not designed to be a programming language so you should never put too much programming logic in your XSLT. That code can be a pain to write and maintain and so it should be avoided at all costs. Keep your xslt simple and put any complex logic that your xslt transformation requires in a class. Here is how you can create a helper class and call that from your xslt. For example, this is my helper class:  public class XsltHelper     {         public string GetStringHash(string originalString)         {             return originalString.GetHashCode().ToString();         }     }   And this is my xslt file(notice the namespace declaration that references the helper class): <?xml version="1.0" encoding="UTF-8" ?> <xsl:stylesheet  xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0" xmlns:ext="http://MyNamespace">     <xsl:output method="text" indent="yes" omit-xml-declaration="yes"/>     <xsl:template  match="/">The hash code of "<xsl:value-of select="stringList/string1" />" is "<xsl:value-of select="ext:GetStringHash(stringList/string1)" />".     </xsl:template> </xsl:stylesheet>   Here is how you can include the helper class as part of the transformation: string xml = "<stringList><string1>test</string1></stringList>";             XmlDocument xmlDocument = new XmlDocument();             xmlDocument.LoadXml(xml);               XslCompiledTransform xslCompiledTransform = new XslCompiledTransform();             xslCompiledTransform.Load("XSLTFile1.xslt");               XsltArgumentList xsltArgs = new XsltArgumentList();                        xsltArgs.AddExtensionObject("http://MyNamespace", Activator.CreateInstance(typeof(XsltHelper)));               using (FileStream fileStream = new FileStream("TransformResults.txt", FileMode.OpenOrCreate, FileAccess.ReadWrite, FileShare.ReadWrite))             {                 // transform the xml and output to the output file ...                 xslCompiledTransform.Transform(xmlDocument, xsltArgs, fileStream);                            }

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