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• Efficient solution for multiplayer space partioning?

  - by DevilWithin

  This question is a little tricky, but I will try to make it clear, Lets say I am building an online game, not in a mmo scale, but gladly supporting as many players as possible, in a authoritative server approach, and I want really big worlds with lots of AI simulated enemies. I am aware of a few strategies to save server's CPU by subdividing the space and not processing what doesn't need processing. I 've already split the world by regions, that will require loading times and small transitions, which i think is important to mantain the quality of gameplay when playing locally (alone or even with a couple of friends) because the players won't normally be in more than one or two regions. But even a region can become pretty big, and have a lot of NPC simulating at a time, how do I handle this without screwing the player's experience? Approaches like one server per region and alike are not in the table. I am mainly looking for data structures to hold hordes of enemies, and even peaceful NPC. To finalize the question, please note that vehicles exist, therefore its considerably fast to travel within a region, influencing the "when" to cull areas. Sorry for the confusing question, thanks

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• links for 2010-05-06

  - by Bob Rhubart

  Podcast: Collaborate 10 Wrap-Up - Conclusion #c10 More Collaborate 2010 Las Vegas highlights and hijinks from this ten-member panel, including OAUG and ODTUG board members, members of the Oracle ACE program, and OAUG President Dave Ferguson. (tags: otn oracle collaborate2010) Peter Scott: Realtime Data Warehouse Loading Rittman-Mead's Peter Scott looks at putting data in to a data warehouse in real time. (tags: oracle datawarehousing businessintelligence) Live Webcast: Social BPM - Integrating Enterprise 2.0 with Business Applications - May 12, 2010 at 11:00 a.m. PT Business Process Management with integrated Enterprise 2.0 collaboration can improve business responsiveness and enhance overall enterprise productivity. Learn how to take your business to the next level with a unified solution that fosters process-based collaboration between employees, partners, and customers. (tags: oracle otn bpm enterprise2.0 webcast) Management Pack for Identity Management Viewlet A screencast produced by the Grid Control team showing the features of the Identity Management Pack for Grid Control 11g. Grid Control 11g now works with Oracle Virtual Directory 11g. (tags: oracle otn security identitymanagement) @pevansgreenwood: Having too much SOA is a bad thing (and what we might do about it) "The problem is usually too much flexibility, as flexibility creates complexity, and complexity exponentially increases the effort required to manage and deliver the software." -- Peter Evans-Greenwood (tags: soa complexity flexibility) @vampbenepe: Integration patterns for social data: the Open Social Data Bus "The main point is about defining the right integration pattern for social data: is it a 'message bus' pattern or a 'shared database' pattern?" -- William Vampbenepe (tags: oracle otn enterprise2.0 enterprisearchitecture)

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• Using ASP.NET C# and Javascript

  - by ctck

  I'm looking for the most efficient / standardized way of passing data between client javascript code and C# code behind in an ASP.NET application. Currently ive been using the following methods to achieve this but they all feel a bit like a fudge. The way i pass data from javascript to the C# code behind is by setting hidden asp variables and triggering a postback <asp:HiddenField ID="RandomList" runat="server" /> function SetDataField(data) { document.getElementById('<%=RandomList.ClientID%>').value = data; } Then in C# code i collect the list protected void GetData(object sender, EventArgs e) { var _list = RandomList.value; } Going back the other way i often use either scriptmanager to register a function and pass it data during Page_Load: ScriptManager.RegisterStartupScript(this.GetType(), "Set","get("Test();",true); or i add attributes to controls before a post back or during Initialization / pre rendering stages: Btn.Attributes.Add("onclick", "DisplayMessage("Hello");"); These methods have served me well and do the job. However they just dont feel complete. Is there a more standardized way of passing data between client side markup / javascript and backend code. Ive seen some posts like this one: Injecting JavaScrip : StackOverflow that describe HtmlElement class. Is this something is should look into? Thanks everyone for your time.

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• Silverlight Cream for November 25, 2011 -- #1174

  - by Dave Campbell

  In this Issue: Michael Collier, Samidip Basu, Jesse Liberty, Dhananjay Kumar, and Michael Crump. Above the Fold: WP7: "31 Days of Mango | Day #16: Isolated Storage Explorer" Samidip Basu Metro/WinRT/W8: "1360x768x32 Resolution in Windows 8 in VirtualBox" Michael Crump Shoutouts: Michael Palermo's latest Desert Mountain Developers is up Michael Washington's latest Visual Studio #LightSwitch Daily is up Alex Golesh releases a Silverlight 5-friendly version of his external map manifest file tool: Utility: Extmap Maker v1.1From SilverlightCream.com:31 Days of Mango | Day #17: Using Windows AzureMichael Collier has Jeff Blankenburg's Day 17 and is talking about Azure services for your Phone apps... great discussion on this... good diagrams, code, and entire project to download31 Days of Mango | Day #16: Isolated Storage ExplorerSamidip Basu has Jeff Blankenburg's 31 Days for Day 16, and is discussing ISO, and the Isolated Storage Explorer which helps peruse ISO either in the emulator or on your deviceTest Driven Development–Testing Private ValuesJesse Liberty's got a post up discussing TDD in his latest Full Stack excerpt wherein he and Jon Galloway are building a Pomodoro timer app. He has a solution for dealing with private member variables and is looking for feedbackVideo on How to work with System Tray Progress Indicator in Windows Phone 7Dhananjay Kumar's latest video tutorial is up... covering working with the System Tray Progress Indicator in WP7, as the title says :)1360x768x32 Resolution in Windows 8 in VirtualBoxMichael Crump is using a non-standard resolution with Win8 preview and demosntrates how to make that all work with VirtualBoxMichaelStay in the 'Light!Twitter SilverlightNews | Twitter WynApse | WynApse.com | Tagged Posts | SilverlightCreamJoin me @ SilverlightCream | Phoenix Silverlight User GroupTechnorati Tags:Silverlight    Silverlight 3    Silverlight 4    Windows PhoneMIX10

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• Bad style programming, am I pretending too much?

  - by Luca

  I realized to work in an office with a quite bad code base. The base library implemented in years and years is quite limited, and most of that code is, honestly, horrible. Projects developed in the office are very large. Fine. I could define me a "perfectionist" (but often I'm not), and I thought to refactor an application (really a portion), which need a new (complex) feature. But, today, I really realized that it's not possible to refactor that application modules with a reasonable time (say, 24/26 hours, respect the avaialable time for the task, which is 160 hours). I'm talking about (I am a bit ashamed to say) name collisions, large and frequent cut & paste code, horrible and misleading naming, makefiles without dependencies (!), application login is spread randomly across many different sources, dead code, variable aliasing, no assertion, no documentation, very long source files, bad/incomplete include file definition, (this is emblematic!) very frequent extern declaration of variables and functions, ... I'm sure to continue ... buffer overflows because sprintf, indentation (!), spacing, non existent const modifier usage. I would say that every source line was written quite randomly when needed, without keeping in mind some design (at least, the obvious one). (Am I in hell?) The problem arises when the application is developed by a colleague of mine. I felt very frustrated. So, I decided to expose the "situation" to my colleague; at the end, that was a bad idea. He is justified in saying that "the application was developed in haste, so it is natural that it is written vaguely; you are wasting time to think and implement an elegant implementation" .... I'm asking too much from my colleague to write readable code, which is managed and documented? I expect too much in not having to read thousands of lines of code to understand how a particular logic?

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• Using JuJu with private Openstack cloud deployment?

  - by user76054

  I'm seeing a number of problems trying to use JuJu with our internally deployed Openstack cloud. Most of this appears to be centered around DNS host resolution as well as the need to deal with our company's internal HTTP proxies. Our Openstack deployment relies upon an unroutable 172.16.0.0/12 block of addresses for VLAN allocation to each project (tenant) hosted on our internal cloud. User's have the option of assigning one or more floating addresses to instances, allocated from a block of routable addresses on our internal companies LAN. Currently, Openstack doesn't register instance names with anything other than the DNSMASQ service running on the cloud controller. As such, there's no way to resolve this address through our internal DNS hierarchy (this issue has already been reported as Bug #945505). As such, even though I can bootstrap my JuJu server node, I can't connect to it with the JuJu client, since it can't resolve the local (private) network name. I am able to ssh to the node, once I've assigned it an internally routable (i.e. floating) address. Which leads to the next issue. Next, to install software on an instance running in our cloud, it must have our internal proxy address defined - either in the apt.conf file or via environment variables. Unfortunately, when bootstrapping the server node, there's no provision to pass this info into a instance via JuJu environment.yaml file (if this is even the best way to handle this issue). As a result, the bootstrap node is unable to install the required packages. I'm assuming (dangerous, I know) that the way that I've deployed Openstack in our internal environment is probably not unique. Has anyone else encountered these issues? And more importantly, are work arounds available? Regards, Ross

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• Designing javascript chart library

  - by coolscitist

  I started coding a chart library on top of d3js: My chart library. I read Javascript API reusability and Towards reusable charts. However, I am NOT really following the suggestions because I am not really convinced about them. This is how my library can be used to create a bubble chart: var chart = new XYBubbleChart(); chart.data = [{"xValue":200,"yValue":300},{"xValue":400,"yValue":200},{"xValue":100,"yValue":310}]; //set data chart.dataKey.x = "xValue"; chart.dataKey.y = "yValue"; chart.elementId = "#chart"; chart.createChart(); Here are my questions: It does not use chaining. Is it a big issue? Every property and function is exposed publicly. (Example: width, height are exposed in Chart.js). OOP is all about abstraction and hiding, but I don't really see the point right now. I think exposing everything gives flexibility to change property and functionality inside subclasses and objects without writing a lot of code. What could be pitfalls of such exposure? I have implemented functions like: zooming, "showing info boxes when data point is clicked" as "abilities". (example: XYZoomingAbility.js). Basically, such "abilities" accept "chart" object, play around with public variables of "chart" to add functionality. What this allows me to do is to add an ability by writing: activateZoomAbility(chartObject); My goal is to separate "visualization" from "interactivity". I want "interactivity" like: zooming to be plugged into the chart rather than built inside the chart. Like, I don't want my bubble chart to know anything about "zooming". However, I do want zoomable bubble chart. What is the best way to do this? How to test and what to test? I have written mixed tests: jasmine and actual html files so that I can test manually on browser.

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• Output = MAXDOP 1

  - by Dave Ballantyne

  It is widely know that data modifications on table variables do not support parallelism, Peter Larsson has a good example of that here .  Whilst tracking down a performance issue,  I saw that using the OUTPUT clause also causes parallelism to not be used. By way of example,  first lets create two tables with a simple parent and child (one to one) relationship, and then populate them with 100,000 rows. Drop table ParentDrop table Childgocreate table Parent(id integer identity Primary Key,data1 char(255))Create Table Child(id integer Primary Key)goinsert into Parent(data1)Select top 1000000 NULL from sys.columns a cross join sys.columns b insert into ChildSelect id from Parentgo If we then execute update Parent set data1 =''from Parentjoin Child on Parent.Id = Child.Id where Parent.Id %100 =1 and Child.id %100 =1 We should see an execution plan using parallelism such as   However,  if the OUTPUT clause is now used update Parent set data1 =''output inserted.idfrom Parentjoin Child on Parent.Id = Child.Id where Parent.Id %100 =1 and Child.id %100 =1   The execution plan shows that Parallelism was not used Make of that what you will, but i thought that this was a pretty unexpected outcome. Update : Laurence Hoff has mailed me to note that when the OUTPUT results are captured to a temporary table using the INTO clause,  then parallelism is used.  Naturally if you use a table variable then there is still no parallelism  

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• XNA extending the existing Content type

  - by Maarten

  We are doing a game in XNA that reacts to music. We need to do some offline processing of the music data and therefore we need a custom type containing the Song and some additional data: // Project AudioGameLibrary namespace AudioGameLibrary { public class GameTrack { public Song Song; public string Extra; } } We've added a Content Pipeline extension: // Project GameTrackProcessor namespace GameTrackProcessor { [ContentSerializerRuntimeType("AudioGameLibrary.GameTrack, AudioGameLibrary")] public class GameTrackContent { public SongContent SongContent; public string Extra; } [ContentProcessor(DisplayName = "GameTrack Processor")] public class GameTrackProcessor : ContentProcessor<AudioContent, GameTrackContent> { public GameTrackProcessor(){} public override GameTrackContent Process(AudioContent input, ContentProcessorContext context) { return new GameTrackContent() { SongContent = new SongProcessor().Process(input, context), Extra = "Some extra data" // Here we can do our processing on 'input' }; } } } Both the Library and the Pipeline extension are added to the Game Solution and references are also added. When trying to use this extension to load "gametrack.mp3" we run into problems however: // Project AudioGame protected override void LoadContent() { AudioGameLibrary.GameTrack gameTrack = Content.Load<AudioGameLibrary.GameTrack>("gametrack"); MediaPlayer.Play(gameTrack.Song); } The error message: Error loading "gametrack". File contains Microsoft.Xna.Framework.Media.Song but trying to load as AudioGameLibrary.GameTrack. AudioGame contains references to both AudioGameLibrary and GameTrackProcessor. Are we maybe missing other references?

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• DNS and VPN issues

  - by Lewis

  I recently purchased a year contract for a KVM 512MB VPS running Ubuntu 11.04. I'm having some issues setting up some things on it though - two in particular that I just can't for the life of me figure out. Okay, so I'm trying to setup pptpd as my VPN for my iPhone and my Mac when I'm out on wireless networks. I'm able to login and the chap authenticates but that's as far as I get, no domains will resolve and end up loading forever, I uncommented ms-dns lines as someone had recommended to me and changed the DNS servers to Googles public ones with no luck, is there something I'm missing? (It's probably staring me in the face.) My second issue is that I have managed to setup LAMP but am having a problem with my domain, I have pointed the DNS at 123-reg to my VPS's IP and the 'www .' resolves properly, but when I try to go to the domain without the 'www .' I get the apache landing page ("The web server software is running but no content has been added, yet.") I'm pretty sure there's something I've gotta configure in Apache for the virtual host but I'm missing it. Apart from these minor set-backs I'm enjoying the low-level configuration options of having a VPS and love managing my own server. Thanks!

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• What do you call an obfuscator that isn't an obfuscator?

  - by Alex.Davies

  SmartAssembly, formerly {smartassembly}, version 5 is now available as an Early Access Build. You can get it here: http://www.red-gate.com/MessageBoard/viewforum.php?f=116 We're having second thoughts about the name change though. It isn't that we like the curly brackets, far from it. The trouble is that the first rule of product naming is to name a product by what it does. SmartAssembly may make an assembly smarter, but that's not something people really google for. The trouble is, I can't think of a better name for it. That's because SmartAssembly really does two completely separate things: Obfuscates Sets up your assembly for the awesome exception reports which get sent to you whenever your application crashes. You may have been (un?)lucky enough to see one in reflector if you use it. This is what those exception reports look like when they arrive back with the developer: Look at all those local variables! If you ask me, this is much cooler than the obfuscation. So obviously we don't want to call it just "Red Gate Obfuscator" or something, because it doesn't do justice to the exception reporting. What would you call it?

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• HTML5 game engine for a 2D or 2.5D RPG style "map walk"

  - by stargazer

  please help me to choose a HTML5 game engine or Javascript libraries I want to do the following in the game: when the game starts a part the huge map (full size of the map: about 7 screens) is shown. The map itself is completely designed in the editor mapeditor.org (or in some comparable editor - if you know a good alternative to mapeditor.org - let me know) and loaded at runtime or at design time. The game engine should support loading of isometric maps (well, in worst case only orthogonal maps will be sufficient) both "tile layer" and "object layer" from mapeditor.org should be supported. Scrolling/performance of this map should be fast enough. The map and the game should be either in 2D (orthogonal map) or in 2.5D (isometric map) The game engine should support movement of sprites with animation. Let say I have a sprite for "human" with animation sequences showing "walking" in 8 directions - it should be imported into game engine and should "walk" on the map without writing a lot of Javascript code. Automatic scrolling of the map the "human" nears the screen border. Collision detection, "solid" objects. The mapeditor.org supports properies on tiles. Let say I assign a "solid" property to some tiles in editor. It should be easy to check this "solid" property in the game engine and implement kind of "solid" behavior, so the animanted sprites do not walk through the walls. Collision detection - it should be easy to implement some custom functionality like "when sprite A is close to sprite B - call this function" Showing "dialogs" or popup windows on top of the map - should be easy to implement. Cross-browser audio support - (it is implemented quite well in construct 2 from scirra, so I'm looking for the comparable audio quality) The game itself is a king of RPG but without fighting scenes and without huge "inventory". The main character just walking on the map, discovers some things, there are dialogs and sounds. The functionality of this example from sprite.js http://batiste.dosimple.ch/sprite.js/tests/mapeditor/map_reader.html is very close to what I'm developing. But I'm not a Javascript guru (and a very lazy guy) and would like to write even less Javascript code as in the example...

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• Input handling between game loops

  - by user48023

  This may be obvious and trivial for you but as I am a newbie in programming I come with a specific question. I have three loops in my game engine which are input-loop, update-loop and render-loop. Update-loop is set to 10 ticks per second with a fixed timestep, render-loop is capped at around 60 fps and the input-loop runs as fast as possible. I am using one of the Javascript frameworks which provide such things but it doesn't really matter. Let's say I am rendering a tile map and the view of which elements are rendered depends on camera-like movement variables which are modified during key pressing. This is only about camera/viewport and rendering, no game physics involved here. And now, how can I handle input events among these loops to keep consistent engine reaction? Am I supposed to read the current variable modified with input and do some needed calculations in a update-loop and share the result so it could be interpolated in a render-loop? Or read the input effect directly inside the render-loop and put needed calculations inside? I thought interpreting user input inside an update-loop with a low tick rate would be inaccurate and kind of unresponsive while rendering with interpolation in the final view. How it is done properly in games overall?

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• kubuntu 12.10 will not boot on mac 2.93Ghz intel core 2 duo

  - by Jake Sweet

  I feel like I've tried it all and nothing is changing. I've tried booting from a liveUSB, a liveDVD, and I've checked the mod5 everything matches up. I've even tried different distro's same result on all of them. Just for reference: linuxmint 13kde and Fedora 17. I've also tried changing my liveUSB building software just in case. I've tried unetbootin and Linux USB builder. Both have same results, my opinion is that it is a hardware issue since I'm having near the same result with all of these variables. So now what is actually happening? I can boot up to a screen. I say A screen because some of the ways that dvd's and usb's boot differs. Now on liveusb I'm reaching a black screen with white text. Says booting: done, then below says loading ramdrive: done, then below that it says preparing to boot kernel this may take a while and buckle in or something to that effect. Then nothing. That's it computer freezes. I've waited up to 8 hrs and still nothing. Ok for the liveDVD Everything goes according to instructions per pdf files on every distro, until linux starts. I can only run in compatibility mode. When any other option is tried the computer seems to freeze/stall/be a pain in my butt... Ok well that seems to wrap it up. Also if I'm not explaining something well, I'm sorry I can try to clear anything up. I'm not the best at descriptions. I'm leaving with a tech specs of my mac: 2.93GHz Intel Core 2 Duo, 4 GB ram, NVIDIA GeForce GT 120 graphics, bought in late 09" it's the 24" model, let me know if anymore information will help. Also thanks in advance

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• Cedarview drivers boot to a blank screen

  - by map7

  I'm following the tutorial following tutorial to get my Intel D2700DC motherboard's graphics working: http://daily.siebler.eu/2012/06/ubuntu-12-04-driver-for-intel-cedarview-atom-n2000-und-d2000-serie/ When I boot I'm getting a blank screen. I followed the tutorial and read all the comments. I've also tried: Install gdm and use this instead of lightdm (ubuntu default) sudo apt-get install gdm Remove previous pae kernel: http://www.liberiangeek.net/2011/11/remove-old-kernels-in-ubuntu-11-10-oneiric-ocelot/ Reboot before adding cedarview packages. Have tried with and without the "video=LVDS-1:d" to GRUB_CMDLINE_LINUX_DEFAULT variable in /etc/default/grub I still get a blank screen. I am plugged into a HD screen through the HDMI and have tried the DVI connector also. I can see the grub menu, then a little of the loading and then 'No signal'. I can still ssh into the box though so it is logging in. lspci -v -s 00:02.0 00:02.0 VGA compatible controller: Intel Corporation Atom Processor D2xxx/N2xxx Integrated Graphics Controller (rev 09) (prog-if 00 [VGA controller]) Subsystem: Intel Corporation Device 2011 Flags: bus master, fast devsel, latency 0, IRQ 45 Memory at 80100000 (32-bit, non-prefetchable) [size=1M] I/O ports at 20d0 [size=8] Expansion ROM at <unassigned> [disabled] Capabilities: <access denied> Kernel driver in use: pvrsrvkm Kernel modules: cedarview_gfx uname -a Linux test-desktop 3.2.0-35-generic #55-Ubuntu SMP Wed Dec 5 17:45:18 UTC 2012 i686 i686 i386 GNU/Linux

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• How do I create a .deb file?

  - by JamesTheAwesomeDude

  Yes, I know that this question has been asked many times before, but none of the answers really helped. I'd like to package the Minecraft launcher (which has no proprietary code, AFAIK,) into a .deb file so that I can put it on a flash drive and share it with my friends. I have managed to install Minecraft it manually (put some files into /opt/minecraft, download an icon, and create a .desktop file in /usr/share/applications,) and I have made a shell script that completely automates the process, but it relies on wget to retrieve a few files, including the .desktop file. (It isn't a self-extracting archive, after all.) I'd like to be able to do this offline, as a lot of my friends have slow or no internet. (One of their internet lines was buried so shallowly that it actually got knocked out by the lawnmower.) I won't be loading it into a PPA or anything like that; I just want it to be a "formal" package that can be easily installed and uninstalled. (One thing that I would like is for sudo apt-get purge minecraft to also remove the .minecraft folder. It would also be nice to define the dependedcies as being able to accept OpenJDK or Sun's JVM.) Oh, just so you know, the Minecraft launcher is a .jar file, but I can very, very easily launch it via shell scripts. The exact command is right on the download page.

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• Teach Your Kid to Code (&hellip;and Vote early!)

  - by Steve Michelotti

  Next Tuesday I will be at the CMAP main meeting presenting Teach Your Kid to Code. Next Tuesday is of course Election Day so you have to make sure you vote early in order to get over to CMAP for the 7:00PM presentation. I will be co-presenting this talk with my 5th grade son. Here is the abstract: Have you ever wanted a way to teach your kid to code? For that matter, have you ever wanted to simply be able to explain to your kid what you do for a living? Putting things in a context that a kid can understand is not as easy as it sounds. If you are someone curious about these concepts, this is a “can’t miss” presentation that will be co-presented by Justin Michelotti (5th grader) and his father. Bring your kid with you to CMAP for this fun and educational session. We will show tools you may not have been aware of like SmallBasic and Kodu – we’ll even throw in a little Visual Studio and Windows 8! Concepts such as variables, conditionals, loops, and functions will be covered while we introduce object oriented concepts without any of the confusing words. Kids are not required for entry! I promise this will be an entertaining presentation! We hope to see you (and your kids) there. Click here for details.

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• What steps should I follow to start developing website applications?

  - by Oscar Mederos

  Hello, I've been developing desktop applications for about 4 years, using .NET, C++, C, and a little of Python. I've covered lots of topics while developing my applications, and even web technologies (cookies, GET/POST methods, when programming some scrapers/crawlers). I've been always waiting to start developing websites, preferably using PHP + MySQL, although other advises will be welcomed to make this question more useful and generic for others. I know I could use a CMS instead of starting from scratch, but sometimes I don't need an entire CMS to do minor things... What steps should I follow to create a website? Let's suppose I have a web designer. First of all, the designer designs the entire website (CSS, etc) and then I do the programming stuffs, like loading dynamically things from databases, doing some client-side stuffs with javascript, etc? Or how is the best way to do it? Edit: I'm not looking for tools/frameworks/languages suggestions. What I want to know is how a team (or a developer with a designer) starts creating a website. The steps they do, what tasks they do first, how they integrate the work, etc. An example of an answer could be: 1) Design the entire website with good CSS practices, using containers instead of tables in some cases, etc. 2) Use that design and develop the logic or the functionalities of the website. Of course, that's just an example. I'm looking for a good way to approach it, because I've been wanting to start on it but don't really know how exactly to organize the job :/

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• Windows 8 + Ubuntu dualboot problem - ubuntu does not load after windows updates

  - by Michal Biros

  I have installed Windows 8 64-bit and Ubuntu 14.04 64-bit in dualboot with EFI mode. Everything worked great. I could run Ubuntu or Windows without any problems. Only one little issue was that Windows locked NTFS partitions when I shut it down. When I clicked on restart button in Windows and started Ubuntu, partitions mounted successfully. But today ... I opened windows and downloaded all available updates. When I wanted to come back to Ubuntu I noticed that grub did not count down seconds to automatic start. After choosing Ubuntu option manually, the OS did not load. Just black screen with white underscore in the upper left corner. Windows is accessible always without such issues. Last time I solved it by reinstalling ubuntu but I dont want to do it each time windows downloads some updates. Have you ever meet such problem, or do you know how to solve it? EDIT Ubuntu boots, but it won't start. It ends on loading screen.

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• Why I don't use SSIS checkpoint files

  - by jamiet

  In a recent discussion in regard to general ETL best practises the subject of checkpoint files as a means for package restartability came up and I stated that I was dead against using them. For anyone that may care, here is why: Configuring them is distinctly unintuitive (that's a matter of opinion but if you follow the link I'll wager that you will agree) they don't make any allowance for loop iterations they cannot store variables of type Object they are limited in ability. There are many scenarios where you may want to execute certain containers regardless of whether the package is started from a checkpoint file but the current usage model does not allow for this. they are ignored by eventhandlers, which wouldn't be so bad if there were a way to toggle this behaviour in certain scenarios they dont work properly I'll expand on the last bullet point. I have encountered situations where the behaviour for tasks executing concurrently is unpredictable. That is, sometimes the completion of a task that executes concurrently with a failed/failing task will make it into the checkpoint file and sometimes it won't. This is near-impossible to reproduce but it does happen as my good friend John Welch will hopefully concur (if he is reading). Is anyone out there making successful use of checkpoint files within SSIS? I would be interested in knowing about that if so. @Jamiet

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• Huge procedurally generated 'wilderness' worlds

  - by The Communist Duck

  Hi. I'm sure you all know of games like Dwarf Fortress - massive, procedural generated wilderness and land. Something like this, taken from this very useful article. However, I was wondering how I could apply this to a much larger scale; the scale of Minecraft comes to mind (isn't that something like 8x the size of the Earth's surface?). Pseudo-infinite, I think the best term would be. The article talks about fractal perlin noise. I am no way an expert on it, but I get the general idea (it's some kind of randomly generated noise which is semi-coherent, so not just random pixel values). I could just define regions X by X in size, add some region loading type stuff, and have one bit of noise generating a region. But this would result in just huge amounts of islands. On the other extreme, I don't think I can really generate a supermassive sheet of perlin noise. And it would just be one big island, I think. I am pretty sure Perlin noise, or some noise, would be the answer in some way. I mean, the map is really nice looking. And you could replace the ascii with tiles, and get something very nice looking. Anyone have any ideas? Thanks. :D -TheCommieDuck

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• How to improve performance of map that loads new overlay images

  - by anthonysomerset

  I have inherited a website to maintain that uses a html map overlaying a real map to link specific countries to specific pages. previously it loaded the default map image, then with some javascript it would change the image src to an image with that particular country in a different colour on mouseover and reset the image source back to the original image on mouse out to make maintenance (adding new countries) easier i made the initial map a background image by utilising some CSS for the div tag, and then created new images for each country which only had that countries hightlight so that the images remain fairly small. this works great but theres one issue which is particularly noticeable on slower internet connections when you hover over a country if you dont have the image file in your browser cache or downloaded it wont load the image unless you hover over another country and then back onto the first country - i guess this is due to the image having to manually be downloaded on first hover. My question: is it possible to force the load of these extra images AFTER the page and all the other assets have finished loading so that this behaviour is all but eliminated? the html code for the MAP is as follows: <div class="gtmap"><img id="Image-Maps_6200909211657061" src="<?php echo cdnhttpsCheck(); ?>assets/wmap/a-guided-tours-map-blank.png" usemap="#Image-Maps_6200909211657061" alt="We offer Guided Motorcycle Tours all around the world" width="615" height="296" /> <map id="_Image-Maps_6200909211657061" name="Image-Maps_6200909211657061"> <area shape="poly" coords="511,134,532,107,542,113,520,141" href="/guided-motorcycle-tours-japan/" alt="Guided Japan Motorcycle Tours" title="Japan" onmouseover="if(document.images) document.getElementById('Image-Maps_6200909211657061').src='<?php echo cdnhttpsCheck(); ?>assets/wmap/a-guided-tours-map-japan.png';" onmouseout="if(document.images) document.getElementById('Image-Maps_6200909211657061').src='<?php echo cdnhttpsCheck(); ?>assets/wmap/a-guided-tours-map-blank.png';" /> <area shape="poly" coords="252,61,266,58,275,64,262,68" href="/guided-motorcycle-tour.php?iceland-motorcycle-adventure-39" alt="Guided Iceland Motorcycle Tours" title="Iceland" onmouseover="if(document.images) document.getElementById('Image-Maps_6200909211657061').src='<?php echo cdnhttpsCheck(); ?>assets/wmap/a-guided-tours-map-iceland.png';" onmouseout="if(document.images) document.getElementById('Image-Maps_6200909211657061').src='<?php echo cdnhttpsCheck(); ?>assets/wmap/a-guided-tours-map-blank.png';" /> <area shape="poly" coords="587,246,597,256,577,279,568,270" href="/guided-motorcycle-tour.php?new-zealand-south-island-adventure-10" alt="New Zealand Guided Motorcycle Tours" title="New Zealand" onmouseover="if(document.images) document.getElementById('Image-Maps_6200909211657061').src='<?php echo cdnhttpsCheck(); ?>assets/wmap/a-guided-tours-map-nz.png';" onmouseout="if(document.images) document.getElementById('Image-Maps_6200909211657061').src='<?php echo cdnhttpsCheck(); ?>assets/wmap/a-guided-tours-map-blank.png';" /> <area shape="poly" coords="418,133,412,145,412,154,421,178,430,180,430,166,443,154,443,145,438,144,433,142,430,138,431,130,430,129,425,128" href="/guided-motorcycle-tours-india/" alt="India Guided Motorcycle Tours" title="India" onmouseover="if(document.images) document.getElementById('Image-Maps_6200909211657061').src='<?php echo cdnhttpsCheck(); ?>assets/wmap/a-guided-tours-map-india.png';" onmouseout="if(document.images) document.getElementById('Image-Maps_6200909211657061').src='<?php echo cdnhttpsCheck(); ?>assets/wmap/a-guided-tours-map-blank.png';" /> <area shape="poly" coords="460,152,466,149,474,165,470,171,466,161" href="/guided-motorcycle-tours-laos/" alt="Laos Guided Motorcycle Tours" title="Laos" onmouseover="if(document.images) document.getElementById('Image-Maps_6200909211657061').src='<?php echo cdnhttpsCheck(); ?>assets/wmap/a-guided-tours-map-laos.png';" onmouseout="if(document.images) document.getElementById('Image-Maps_6200909211657061').src='<?php echo cdnhttpsCheck(); ?>assets/wmap/a-guided-tours-map-blank.png';" /> <area shape="poly" coords="468,179,475,166,468,152,475,152,482,169" href="/guided-motorcycle-tour.php?indochina-motorcycle-adventure-tour-32" onClick="javascript: pageTracker._trackPageview('/internal-links/guided-tours/map/vietnam');" alt="Vietnam Guided Motorcycle Tours" title="Vietnam" onmouseover="if(document.images) document.getElementById('Image-Maps_6200909211657061').src='<?php echo cdnhttpsCheck(); ?>assets/wmap/a-guided-tours-map-viet.png';" onmouseout="if(document.images) document.getElementById('Image-Maps_6200909211657061').src='<?php echo cdnhttpsCheck(); ?>assets/wmap/a-guided-tours-map-blank.png';" /> <area shape="poly" coords="330,239,337,235,347,226,352,233,351,243,344,250,335,253,327,255,323,249,322,242,323,241" href="/guided-motorcycle-tours-southafrica/" alt="South Africa Guided Motorcycle Tours" title="South Africa" onmouseover="if(document.images) document.getElementById('Image-Maps_6200909211657061').src='<?php echo cdnhttpsCheck(); ?>assets/wmap/a-guided-tours-map-sa.png';" onmouseout="if(document.images) document.getElementById('Image-Maps_6200909211657061').src='<?php echo cdnhttpsCheck(); ?>assets/wmap/a-guided-tours-map-blank.png';" /> <area shape="poly" coords="290,77,293,86,298,96,286,102,285,97,285,89,282,84,282,79" href="/guided-motorcycle-tour.php?great-britain-isle-of-man-scotland-wales-uk-18" alt="United Kingdom" title="United Kingdom Guided Motorcycle Tours" onmouseover="if(document.images) document.getElementById('Image-Maps_6200909211657061').src='<?php echo cdnhttpsCheck(); ?>assets/wmap/a-guided-tours-map-uk.png';" onmouseout="if(document.images) document.getElementById('Image-Maps_6200909211657061').src='<?php echo cdnhttpsCheck(); ?>assets/wmap/a-guided-tours-map-blank.png';" /> <area shape="poly" coords="357,118,368,118,369,126,345,129,338,125,338,117,342,115,348,116" href="/guided-motorcycle-tour.php?explore-turkey-adventure-45" alt="Turkey" title="Turkey Guided Motorcycle Tours" onmouseover="if(document.images) document.getElementById('Image-Maps_6200909211657061').src='<?php echo cdnhttpsCheck(); ?>assets/wmap/a-guided-tours-map-turkey.png';" onmouseout="if(document.images) document.getElementById('Image-Maps_6200909211657061').src='<?php echo cdnhttpsCheck(); ?>assets/wmap/a-guided-tours-map-blank.png';" /> <area shape="poly" coords="206,95,193,101,185,101,178,106,165,111,157,109,147,105,134,103,121,103,107,103,96,103,86,104,81,99,77,91,70,83,62,79,60,72,61,64,59,57,60,51,71,50,83,49,95,50,107,54,117,53,129,47,137,36,148,37,163,38,177,44,187,54,195,60,184,72,191,80,200,87" href="/guided-motorcycle-tours-canada/" alt="Guided Canada Motorcycle Tours" title="Canada" onmouseover="if(document.images) document.getElementById('Image-Maps_6200909211657061').src='<?php echo cdnhttpsCheck(); ?>assets/wmap/a-guided-tours-map-canada.png';" onmouseout="if(document.images) document.getElementById('Image-Maps_6200909211657061').src='<?php echo cdnhttpsCheck(); ?>assets/wmap/a-guided-tours-map-blank.png';" /> <area shape="poly" coords="61,75,60,62,60,55,59,44,51,44,43,43,36,42,28,43,23,48,17,51,15,62,19,74,27,79,19,83,16,93,35,83,43,77,50,75,55,75" href="/guided-motorcycle-tours-alaska/" alt="Guided Alaska Motorcycle Tours" title="Alaska" onmouseover="if(document.images) document.getElementById('Image-Maps_6200909211657061').src='<?php echo cdnhttpsCheck(); ?>assets/wmap/a-guided-tours-map-alaska.png';" onmouseout="if(document.images) document.getElementById('Image-Maps_6200909211657061').src='<?php echo cdnhttpsCheck(); ?>assets/wmap/a-guided-tours-map-blank.png';" /> <area shape="poly" coords="82,101,99,101,133,101,148,105,161,110,172,106,187,100,180,113,171,122,165,131,159,149,147,141,137,140,129,147,120,141,112,138,103,137,93,132,86,122,86,112,86,106" href="/guided-motorcycle-tours-usa/" alt="USA Guided Motorcycle Tours" title="USA" onmouseover="if(document.images) document.getElementById('Image-Maps_6200909211657061').src='<?php echo cdnhttpsCheck(); ?>assets/wmap/a-guided-tours-map-usa.png';" onmouseout="if(document.images) document.getElementById('Image-Maps_6200909211657061').src='<?php echo cdnhttpsCheck(); ?>assets/wmap/a-guided-tours-map-blank.png';" /> <area shape="poly" coords="178,225,180,214,175,208,174,204,178,198,174,193,167,192,157,199,158,204,164,211,167,218" href="/guided-motorcycle-tour.php?peru-machu-picchu-adventure-25" alt="Peru Guided Motorcycle Tours" title="Peru" onmouseover="if(document.images) document.getElementById('Image-Maps_6200909211657061').src='<?php echo cdnhttpsCheck(); ?>assets/wmap/a-guided-tours-map-peru.png';" onmouseout="if(document.images) document.getElementById('Image-Maps_6200909211657061').src='<?php echo cdnhttpsCheck(); ?>assets/wmap/a-guided-tours-map-blank.png';" /> <area shape="poly" coords="172,226,169,239,166,256,166,267,164,279,171,277,174,262,175,250,179,234,180,225,176,224" href="/guided-motorcycle-tours-chile/" alt="Guided Chile Motorcycle Tours" title="Chile" onmouseover="if(document.images) document.getElementById('Image-Maps_6200909211657061').src='<?php echo cdnhttpsCheck(); ?>assets/wmap/a-guided-tours-map-chile.png';" onmouseout="if(document.images) document.getElementById('Image-Maps_6200909211657061').src='<?php echo cdnhttpsCheck(); ?>assets/wmap/a-guided-tours-map-blank.png';" /> <area shape="poly" coords="199,260,194,261,187,265,184,276,183,296,170,292,168,282,174,270,174,257,177,245,180,230,190,228,205,237,199,245" href="/guided-motorcycle-tours-argentina/" alt="Guided Argentina Motorcycle Tours" title="Argentina" onmouseover="if(document.images) document.getElementById('Image-Maps_6200909211657061').src='<?php echo cdnhttpsCheck(); ?>assets/wmap/a-guided-tours-map-arg.png';" onmouseout="if(document.images) document.getElementById('Image-Maps_6200909211657061').src='<?php echo cdnhttpsCheck(); ?>assets/wmap/a-guided-tours-map-blank.png';" /> </map> </div> The <?php echo cdnhttpsCheck(); ?> is just a site specific function that gets the correct web domain/url from a config file to load resources from CDN where possible (eg all non HTTPS requests) We are loading Jquery at the bottom of the HTML if anybody wonders why it is missing from the code snippet for reference, the page with the map in question is found here: http://www.motoquest.com/guided-motorcycle-tours/

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• After upgrading to 12.04 from 10.10 my mythbuntu standard MCEUSB remote no longer works

  - by keepitsimpleengineer

  I had no problems using my Windows Media Center Remote with 10.10 Mythbuntu, but after upgrading, it no longer affects Mythbuntu. I have verified and re-installed it in Mythbuntu Control Centre. I have used irw to verify the ir buttons actions are properly received by the HTPC. How do I go about fixing this? 3.2.0-26-generic (#41-Ubuntu SMP Thu Jun 14 17:49:24 UTC 2012) Xorg version: 1.11.3 (16 July 2012 08:06:31PM) GCC: 4.6 (x86_64-linux-gnu) Current updates as of 2012?07?21 $cat /etc/lirc/hardware.con #Chosen Remote Control REMOTE="Windows Media Center Transceivers/Remotes (all)" REMOTE_MODULES="lirc_dev mceusb" REMOTE_DRIVER="" REMOTE_DEVICE="/dev/lirc0" REMOTE_SOCKET="" REMOTE_LIRCD_CONF="mceusb/lircd.conf.mceusb" REMOTE_LIRCD_ARGS="" #Chosen IR Transmitter TRANSMITTER="None" TRANSMITTER_MODULES="" TRANSMITTER_DRIVER="" TRANSMITTER_DEVICE="" TRANSMITTER_SOCKET="" TRANSMITTER_LIRCD_CONF="" TRANSMITTER_LIRCD_ARGS="" #Enable lircd START_LIRCD="true" #Don't start lircmd even if there seems to be a good config file #START_LIRCMD="false" #Try to load appropriate kernel modules LOAD_MODULES="true" # Default configuration files for your hardware if any LIRCMD_CONF="" #Forcing noninteractive reconfiguration #If lirc is to be reconfigured by an external application #that doesn't have a debconf frontend available, the noninteractive #frontend can be invoked and set to parse REMOTE and TRANSMITTER #It will then populate all other variables without any user input #If you would like to configure lirc via standard methods, be sure #to leave this set to "false" FORCE_NONINTERACTIVE_RECONFIGURATION="false" START_LIRCMD="" # lsusb | grep -i infrared Bus 003 Device 002: ID 0471:0815 Philips (or NXP) eHome Infrared Receiver

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• Translation and Localization Resources for UX Designers

  - by ultan o'broin

  Here is a handy list of translation and localization-related resources for user experience professionals. Following these will help you design an easily translatable user experience. Most of the references here are for web pages or software. Fundamentally, remember your designs will be consumed globally, and never divorce the design process from the development or deployment effort that goes into bringing your designs to life in code. Ask yourself today: Do you know how the text you are using in your designs are delivered to the customer, even in English? Key areas that UX designers always seen to fall foul of, in my space anyway, are: Terminology that is impossible to translate (jargon, multiple modifiers, gerunds) or is used inconsistently Poorly written, verbose text (really, just write well in English, no special considerations) String construction (concatenation of parts assembled dynamically) Composite widget positioning (my favourite) Hard-coded fonts, small font sizes, or character formatting or casing that doesn't work globally Format that is not separate from content Restricted real estate not allowing for text expansion in translation Forcing formatting with breaks, and hard-coding alphabetical sorting Graphics that do not work in Bi-Di languages (because they indicate directionality and can't flip) or contain embedded text. The problems of culturally offensive icons are well known by now in the enterprise applications space, though there are some dangers, such as the use of flags to indicate language, for example. Resources Internationalization Techniques: Authoring HTML & CSS Global By Design Insert Title Here : Variables in Interface Language Prose: Internationalisation Doc and help considerations I can deal with later.

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• Server side C# MVC with AngularJS

  - by Ryan Langton

  I like using .NET MVC and have used it quite a bit in the past. I have also built SPA's using AngularJS with no page loads other than the initial one. I think I want to use a blend of the two in many cases. Set up the application initially using .NET MVC and set up routing server side. Then set up each page as a mini-SPA. These pages can be quite complex with a lot of client side functionality. My confusion comes in how to handle the model-view binding using both .NET MVC and the AngularJS scope. Do I avoid the use of razor Html helpers? The Html helpers create the markup behind the scene so it could get messy trying to add angularjs tags using the helpers. So how to add ng-model for example to @Html.TextBoxFor(x = x.Name). Also ng-repeat wouldn't work because I'm not loading my model into the scope, right? I'd still want to use a c# foreach loop? Where do I draw the lines of separation? Has anyone gotten .NET MVC and AngularJS to play nicely together and what are your architectural suggestions to do so?

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