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• Detect two specific objects collision with bullet physics

  - by sebap123

  I have got some problem with defining collision between objects in my game using bullet physics. I know that objects are colliding with each other simultaneously and I don't have to do anything more. However I need to be noticed when one object collides with one of the rest. It is quite awkward written so I will tell what I want to achive. I have got ball which hits wall from tubes. Everything is on the floor. When ball hits wall some fragments fall down to infinity. So I have got bellow floor btStaticPlaneShape. This is place where most of objects is stoping and then I can start another action. But not all of them. So I've been trying to use function checkCollideWith but it isn't good method as it was said in reference and wiki. So I've checked method described in wiki http://bulletphysics.org/mediawiki-1.5.8/index.php/Collision_Callbacks_and_Triggers called contact information. This isn't good method either because it is extremly hard to identify what is what when colliding. You have to also remember that ball is almost all the time colliding with something - floor, wall or eart level. So is there any other method to check what is colliding with what?

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• Decal implementation

  - by dreta

  I had issues finding information about decals, so maybe this question will help others. The implementation is for a forward renderer. Could somebody confirm if i got decal implementation right? You define a cube of any dimension that'll define the projection volume in common space. You check for triangle intersection with the defined cube to recieve triangles that the projection will affect. You clip these triangles and save them. You then use matrix tricks to calculate UV coordinates for the saved triangles that'll reference the texture you're projecting. To do this you take the vectors representing height, width and depth of the cube in common space, so that f.e. the bottom left corner is the origin. You put that in a matrix as the i, j, k unit vectors, set the translation for the cube, then you inverse this matrix. You multiply the vertices of the saved triangles by this matrix, that way you get their coordinates inside of a 0 to 1 size cube that you use as the UV coordinates. This way you have the original triangles you're projecting onto and you have UV coordinates for them (the UV coordinates are referencing the texture you're projecting). Then you rerender the saved triangles onto the scene and they overwrite the area of projection with the projected image. Now the questions that i couldn't find answers for. Is the last point right? I've never done software clipping, but it seems error prone enough, due to limited precision, that the'll be some z fighting occuring for the projected texture. Also is the way of getting UV coordinates correct?

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• SQL SERVER – 2014 Announced and SQL Server 2014 Datasheet

  - by Pinal Dave

  Earlier this week Microsoft has announced SQL Server 2014. The release date of Trial of SQL Server to be believed later this year. Here are few of the improvements which I was looking forward are there in this release. Please note this is not the exhaustive list of the features of SQL Server 2014. This is the a quick note on the features which I was looking forward and now will be available in this release. Always On supports now 8 secondaries instead of 4 Online Indexing at partition level – this is a good thing as now index rebuilding can be done at a partition level Statistics at the partition level – this will be a huge improvement in performance In-Memory OLTP works by providing in-application memory storage for the most often used tables in SQL Server. (Read More Here) Columnstore Index can be updated – I just can’t wait for this feature (Columnstore Index) Resource Governor can control IO along with CPU and Memory Increase performance by extending SQL Server in-memory buffer pool to SSDs Backup to Azure Storage You can additionally download SQL Server 2014 Datasheet from here. Which is your favorite new feature of SQL Server 2014? Reference: Pinal Dave (http://blog.sqlauthority.com) Filed under: PostADay, SQL, SQL Authority, SQL Query, SQL Server, SQL Tips and Tricks, T SQL, Technology

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• CodePlex Daily Summary for Monday, July 02, 2012

  CodePlex Daily Summary for Monday, July 02, 2012Popular ReleasesDynamicToSql: DynamicToSql 1.0.0 (beta): 1.0.0 beta versionCommonLibrary.NET: CommonLibrary.NET 0.9.8.5 - Final Release: A collection of very reusable code and components in C# 4.0 ranging from ActiveRecord, Csv, Command Line Parsing, Configuration, Holiday Calendars, Logging, Authentication, and much more. FluentscriptCommonLibrary.NET 0.9.8 contains a scripting language called FluentScript. Releases notes for FluentScript located at http://fluentscript.codeplex.com/wikipage?action=Edit&title=Release%20Notes&referringTitle=Documentation Fluentscript - 0.9.8.5 - Final ReleaseApplication: FluentScript Versio...SharePoint 2010 Metro UI: SharePoint 2010 Metro UI8: Please review the documentation link for how to install. Installation takes some basic knowledge of how to upload and edit SharePoint Artifact files. Please view the discussions tab for ongoing FAQsKwCombinatorics - Pick-Combination, Permutation, Cartesian Product classes in C#: KwCombinatorics library v2.4.0: Version 2.4.0 Optimized Combination.Rank setter. Optimized Multicombination.Rank setter. Added methods Combinatoric.BinomialCoefficient, Combinatoric.Factorial. Version 2.3.0 Added Permutation.Backtrack method. Added N-Queens example programs. Multicombination ranking constructor accepts unsorted data. Combination ranking constructor accepts unsorted data. Fixed numeric overflow bug in Combination.Rank setter. Fixed missing numeric overflow checks in Product constructors. F...Back-Propagation Neural Networks Simulation: Back-Propagation Neural Networks Simulation: This is the first release application for Back-Propagation Neural Networks Simulation. It is required .NET Framework 4.0. Check this to use http://backpronn.codeplex.comnopCommerce. Open source shopping cart (ASP.NET MVC): nopcommerce 2.60: Highlight features & improvements: • Significant performance optimization. • Use AJAX for adding products to the cart. • New flyout mini-shopping cart. • Auto complete suggestions for product searching. • Full-Text support. • EU cookie law support. To see the full list of fixes and changes please visit the release notes page (http://www.nopCommerce.com/releasenotes.aspx).THE NVL Maker: The NVL Maker Ver 3.51: http://download.codeplex.com/Download?ProjectName=nvlmaker&DownloadId=371510 ????：http://115.com/file/beoef05k#THE-NVL-Maker-ver3.51-sim.7z ????：http://www.mediafire.com/file/6tqdwj9jr6eb9qj/THENVLMakerver3.51tra.7z ======================================== ???? ======================================== 3.51 beta ???： ·?????????????????????? ·?????????，?????????0，?????????????????????? ·??????????????????????????? ·?????????????TJS????（EXP??） ·??4:3???，???????????????，??????????? ·?????????...JavApi: JavApi 2012-07-01.13631: RELEASE NOTES JavApi 0.8 base release with some base classes of ported Java API, provided under Apache License 2.0. JavApi Common Codec is a JavApi based codec framework, ported form Apache Codec 1.4.0, provided under Apache License 2.0. JavApi Common Collections is a JavApi based collection framework, ported form Apache Collections 3.2.1, provided under Apache License 2.0. JavApi Common Compress is a JavApi based collection framework, ported form Apache Compress 1.1, provided under Apache L...????: ????2.0.3: 1、???????????。 2、????????。 3、????????????。 4、bug??，????。Apworks: Apworks (v2.5.4563.21309, 30JUN2012): Installation Prerequisites: 1. Microsoft .NET Framework 4.0 SP1 2. Microsoft Visual Studio 2010 SP1 3. Other required libraries & assemblies are now included in the installation package so no more prerequisites needed Functional Updates: 1. Refactor the identity field of the IEntity interface from 'Id' to 'ID' 2. Changed the MySql Storage to use the MySql NetConnector version 6.4.4. 3. Implemented the paging support for the repositories. 4. Added the Eager Loading Property specification t...AssaultCube Reloaded: 2.5 Intrepid: Linux has Ubuntu 11.10 32-bit precompiled binaries and Ubuntu 10.10 64-bit precompiled binaries, but you can compile your own as it also contains the source. If you are using Mac or other operating systems, download the Linux package. Try to compile it. If it fails, download a virtual machine. The server pack is ready for both Windows and Linux, but you might need to compile your own for Linux (source included) You should delete /home/config/saved.cfg to reset binds/other stuff If you us...Magelia WebStore Open-source Ecommerce software: Magelia WebStore 2.0: User Right Licensing ContentType version 2.0.267.1Designing Windows 8 Applications with C# and XAML: Chapters 1 - 7 Release Preview: Source code for all examples from Chapters 1 - 7 for the Release PreviewMicrosoft Ajax Minifier: Microsoft Ajax Minifier 4.57: Fix for issue #18284: evaluating literal expressions in the pattern c1 * (x / c2) where c1/c2 is an integer value (as opposed to c2/c1 being the integer) caused the expression to be destroyed.Visual Studio ALM Quick Reference Guidance: v2 - Visual Studio 2010 (Japanese): Rex Tang (?? ??) http://blogs.msdn.com/b/willy-peter_schaub/archive/2011/12/08/introducing-the-visual-studio-alm-rangers-rex-tang.aspx, Takaho Yamaguchi (?? ??), Masashi Fujiwara (?? ??), localized and reviewed the Quick Reference Guidance for the Japanese communities, based on http://vsarquickguide.codeplex.com/releases/view/52402. The Japanese guidance is available in AllGuides and Everything packages. The AllGuides package contains guidances in PDF file format, while the Everything packag...Visual Studio Team Foundation Server Branching and Merging Guide: v1 - Visual Studio 2010 (Japanese): Rex Tang (?? ??) http://blogs.msdn.com/b/willy-peter_schaub/archive/2011/12/08/introducing-the-visual-studio-alm-rangers-rex-tang.aspx, Takaho Yamaguchi (?? ??), Hirokazu Higashino (?? ??), localized and reviewed the Branching Guidance for the Japanese communities, based on http://vsarbranchingguide.codeplex.com/releases/view/38849. The Japanese guidance is available in AllGuides and Everything packages. The AllGuides package contains guidances in PDF file format, while the Everything packag...SQL Server FineBuild: Version 3.1.0: Top SQL Server FineBuild Version 3.1.0This is the stable version of FineBuild for SQL Server 2012, 2008 R2, 2008 and 2005 Documentation FineBuild Wiki containing details of the FineBuild process Known Issues Limitations with this release FineBuild V3.1.0 Release Contents List of changes included in this release Please DonateFineBuild is free, but please donate what you think FineBuild is worth as everything goes to charity. Tearfund is one of the UK's leading relief and de...EasySL: RapidSL V2: Rewrite RapidSL UI Framework, Using Silverlight 5.0 EF4.1 Code First Ria Service SP2 + Lastest Silverlight Toolkit.SOLID by example: All examples: All solid examplesSiteMap Editor for Microsoft Dynamics CRM 2011: SiteMap Editor (1.1.1726.406): Use of new version of connection controls for a full support of OSDP authentication mechanism for CRM Online.New ProjectsBack-Propagation Neural Networks Simulation: This is simple Back-Propagation Neural Network simulation using C#. This code is a part of my "Supervised Neural Network" book written in 2006.D3API.Net: Diablo 3 API Wrapper for .NET developersEIRENE: UnknownEnterprise Library 5 Caching with ProtoBuf.NET: Implementation of Enterprise Library 5 Caching using ProtoBuf.NET Isolated Storage Backing StoreField Modeler 2012: Field Modeler 2012 was designed to allow introductory and advanced undergraduate students to get a ‘feel’ for the nature of the electromagnetic field.Fill Disk Public: Fill Disk Public is a program which be used to fill fixed hard disks by dummy temporary files. The powerful tool is easy to fill/clean disks. FluffyCloud: Diskusní server pro ceskou furry komunitu.FusionUI: ASP.NET MVC user interface frameworkHexa Question Engine: The Hexa Question Engine is the free solution for companies and persons for gathering information from his customers. We provide a solution with the latest technology and continuous development by the best team of professionals.hybgpx: One Test ProjectiBoxDB: iBoxDB is a small&smart embedded database, supports .NET4 WindowsPhone. ( OODB , NoSQL , Pure C#, WP7)IBR.StringResourceBuilder: The String Resource Builder is a Visual Studio (VS) extension to extract string literals (C#, VB.NET) from source code into resource files (ResX).iTuanju: This project is just a demo and temporary location for files. MVC Ajax Controls (MvcAjaxControls): The MvcAjaxControls project provides a set of html and javascript helpers for adding Ajax functionality to ASP.NET MVC applications.Niko Mix: Just to learn smthingPowerRedis: This project is to access a Redis server via powershell. It’s basically a wrapper around the awesome ServiceStack C# library from servicestack.org.sample1: aspSharePoint 2010 Metro UI: Need a Windows 8 Metro style UI landing page? SharePoint 2010 Metro Masterpage and Css!Source Control Selector: This project aims to address a very basic problem of developers using Visual Studio: Forcing VS to select the correct Source Control Provider.Vitual DJ Mayhem Modules: This project is an add on for Project Mayhem that allows users to control Virtual DJ through the reactionsWPFHelperTools: when test application ,we need to copy test files, if have lots of file ,this is not a good work. YiHaoDian .NET Sdk: ???SDK

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• Level editor event system, how to translate event to game action

  - by Martino Wullems

  Hello, I've been busy trying to create a level editor for a tile based game i'm working on. It's all going pretty fine, the only thing i'm having trouble with is creating a simple event system. Let's say the player steps on a particulair tile that had the action "teleport" assigned to it in the editor. The teleport string is saved in the tile object as a variable. When creating the tilegrid an actionmanager class scans the action variable and assigns actions to the variable. public static class ActionManager { public static function ParseTileAction(tile:Tile) { switch(tile.action) { case "TELEPORT": //assign action here break; } } } Now this is an collision event, so I guess I should also provide an object to colide with the tile. But what if it would have to count for collision with all objects in the world? Also, checking for collisions in the actionmanager class doesn't seem very efficient. Am I even on the right track here? I'm new to game design so I could be completly off track. Any tips on how handeling and creating events using an editor is usually done would be great. The main problem i'm having is the Thanks in advance.

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• BizTalk 2009 - Pipeline Component Wizard Error

  - by Stuart Brierley

  When attempting to run the BizTalk Server Pipeline Component Wizard for the first time I encountered an error that prevented the creation of the pipeline component project: System.ArgumentException : Value does not fall withing the expected range  I found the solution for this error in a couple of places, first a reference to the issue on the Codeplex Project and then a fuller description on a blog referring to the BizTalk 2006 implementation. To resolve this issue you need to make a change to the downloaded wizard solution code, by changing the file BizTalkPipelineComponentWizard.cs around line 304 From // get a handle to the project. using mySolution will not work. pipelineComponentProject = this._Application.Solution.Projects.Item(Path.Combine(Path.GetFileNameWithoutExtension(projectFileName), projectFileName)); To // get a handle to the project. using mySolution will not work. if (this._Application.Solution.Projects.Count == 1) pipelineComponentProject = this._Application.Solution.Projects.Item(1); else { // In Doubt: Which project is the target? pipelineComponentProject = this._Application.Solution.Projects.Item(projectFileName); } Following this you need to uninstall the the wizard, rebuild the solution and re-install the wizard again.

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• Compiling NETGEAR WNR2000v3 firmware under 12.04.1 LTS

  - by Madmanguruman

  I'm trying to compile the GPL NETGEAR firmware for the WNR2000v3 router using Ubuntu 12.04.1 LTS. I've downloaded and extracted the source, installed everything I think I need, yet there are two build dependencies that I cannot resolve: > make menuconfig .... Build dependency: Please install ncurses. (Missing libncurses.so or ncurses.h) Build dependency: Please install zlib. (Missing libz.so or zlib.h) I've tried apt-getting all of the following packages: libncurses5 libncurses5:i386 libncurses5-dev zlib1g zlib1g-dev zlib1g-dbg The missing libs seem 'real': the target .so files aren't in /usr/lib, although the .h files are in /usr/include. EDIT: some Googling told me of broken or missing symlinks. I found the following: /lib/i386-linux-gnu/libncurses.so.5 -> libncurses.so.5.9 /lib/i386-linux-gnu/libncurses.so.5.9 /lib/i386-linux-gnu/libncursesw.so.5 -> libncursesw.so.5.9 /lib/i386-linux-gnu/libncursesw.so.5.9 /lib/i386-linux-gnu/libz.so.1 -> libz.so.1.2.3.4 /lib/i386-linux-gnu/libz.so.1.2.3.4 so I tried to symlink these to /usr/lib: /usr/lib/libncurses.so -> /lib/i386-linux-gnu/libncurses.so.5 /usr/lib/libz.so -> /lib/i386-linux-gnu/libz.so.1 but the project still complains about missing libncurses and zlib. EDIT: I was able to get the dependencies to work under 8.04. Need to cross-reference things now. Does anyone have some tips on how to debug this sort of issue?

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• High number of ethernet errors. Tool for testing the ethernet card?

  - by Fabio Dalla Libera

  I have an Asus Sabertooth X79. I often get corrupted files. I checked the RAM, but memtest finds no errors. To avoid the possibility of disk errors, I tried copying the files to tmpfs. If I copy from the network, I get md5sum mismatches about once every 10 times using a 6Gb file. Copying from RAM to RAM, I didn't get mismatches. I get a very high number of errors in ifconfig (compared to others PCs I just took as reference, which have 0 with much more traffic). Here is an example RX packets:13972848 errors:200 dropped:0 overruns:0 frame:101 The motherboard is new, but do you think there're some problems with it? What could I use to test the (integrated) network adapter? What else do you think I should double check? --edit-- I tried another NIC, it gives a lot of Corrupted MAC on Input. Disconnecting: Packet corrupt lost connection. I noticed that another PC downloads at 11.1MB/s without problems. This pc at 66.0 MB/s. Is there any way to try to limit the speed?

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• How to get tilemap transparency color working with TiledLib's Demo implementation?

  - by Adam LaBranche

  So the problem I'm having is that when using Nick Gravelyn's tiledlib pipeline for reading and drawing tmx maps in XNA, the transparency color I set in Tiled's editor will work in the editor, but when I draw it the color that's supposed to become transparent still draws. The closest things to a solution that I've found are - 1) Change my sprite batch's BlendState to NonPremultiplied (found this in a buried Tweet). 2) Get the pixels that are supposed to be transparent at some point then Set them all to transparent. Solution 1 didn't work for me, and solution 2 seems hacky and not a very good way to approach this particular problem, especially since it looks like the custom pipeline processor reads in the transparent color and sets it to the color key for transparency according to the code, just something is going wrong somewhere. At least that's what it looks like the code is doing. TileSetContent.cs if (imageNode.Attributes["trans"] != null) { string color = imageNode.Attributes["trans"].Value; string r = color.Substring(0, 2); string g = color.Substring(2, 2); string b = color.Substring(4, 2); this.ColorKey = new Color((byte)Convert.ToInt32(r, 16), (byte)Convert.ToInt32(g, 16), (byte)Convert.ToInt32(b, 16)); } ... TiledHelpers.cs // build the asset as an external reference OpaqueDataDictionary data = new OpaqueDataDictionary(); data.Add("GenerateMipMaps", false); data.Add("ResizetoPowerOfTwo", false); data.Add("TextureFormat", TextureProcessorOutputFormat.Color); data.Add("ColorKeyEnabled", tileSet.ColorKey.HasValue); data.Add("ColorKeyColor", tileSet.ColorKey.HasValue ? tileSet.ColorKey.Value : Microsoft.Xna.Framework.Color.Magenta); tileSet.Texture = context.BuildAsset<Texture2DContent, Texture2DContent>( new ExternalReference<Texture2DContent>(path), null, data, null, asset); ... I can share more code as well if it helps to understand my problem. Thank you.

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• MySQL – How to Write Loop in MySQL

  - by Pinal Dave

  Since, I have written courses on MySQL, I quite often get emails about MySQL courses. Here is the question, which I have received quite often. “How do I loop queries in MySQL?” Well, currently MySQL does not allow to write loops with the help of ad-hoc SQL. You have to write stored procedure (routine) for the same. Here is the example, how we can create a procedure in MySQL which will look over the code. In this example I have used SELECT 1 statement and looped over it. In reality you can put there any code and loop over it. This procedure accepts one parameter which is the number of the count the loop will iterate itself. delimiter // CREATE PROCEDURE doiterate(p1 INT) BEGIN label1: LOOP SET p1 = p1 - 1; IF p1 > 0 THEN SELECT 1; ITERATE label1; END IF; LEAVE label1; END LOOP label1; END// delimiter ; CALL doiterate(100); You can also use WHILE to loop as well, we will see that in future blog posts. Reference: Pinal Dave (http://blog.sqlauthority.com)Filed under: MySQL, PostADay, SQL, SQL Authority, SQL Query, SQL Tips and Tricks, T SQL

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• Java HttpURLConnection class Program

  - by pandu

  I am learning java. Here is the sample code of HttpURLConnection class usage in some text book import java.net.*; import java.io.*; import java.util.*; class HttpURLDemo { public static void main(String args[]) throws Exception { URL hp = new URL("http://www.google.com"); HttpURLConnection hpCon = (HttpURLConnection) hp.openConnection(); // Display request method. System.out.println("Request method is " + hpCon.getRequestMethod()); // Display response code. System.out.println("Response code is " + hpCon.getResponseCode()); // Display response message. System.out.println("Response Message is " + hpCon.getResponseMessage()); // Get a list of the header fields and a set // of the header keys. Map<String, List<String>> hdrMap = hpCon.getHeaderFields(); Set<String> hdrField = hdrMap.keySet(); System.out.println("\nHere is the header:"); // Display all header keys and values. for(String k : hdrField) { System.out.println("Key: " + k + " Value: " + hdrMap.get(k)); } } } Question is Why hpCon Object is declared in the following way? HttpURLConnection hpCon = (HttpURLConnection) hp.openConnection(); instead of declaring like this HttpURLConnection hpCon = new HttpURLConnection(); Author provided the following explanation. I cant understand Java provides a subclass of URLConnection that provides support for HTTP connections. This class is called HttpURLConnection. You obtain an HttpURLConnection in the same way just shown, by calling openConnection( ) on a URL object, but you must cast the result to HttpURLConnection. (Of course, you must make sure that you are actually opening an HTTP connection.) Once you have obtained a reference to an HttpURLConnection object, you can use any of the methods inherited from URLConnection

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• SQLAuthority News – Download SQL Server 2012 SP1 CTP4

  - by pinaldave

  There are few trends I often see in the industry, for example i) running servers on n-1 version ii) wait till SP1 to released to adopt the product. Microsoft has recently released SQL Server 2012 SP1 CTP4. CTP stands for Community Technology Preview and it is not the final version yet. The SQL Server 2012 SP1 CTP release is available for testing purposes and use on non-production environments. What’s new for SQL Server 2012 SP1: AlwaysOn Availability Group OS Upgrade: Selective XML Index FIX: DBCC SHOW_STATISTICS works with SELECT permission New dynamic function returns statistics properties SSMS Complete in Express SlipStream Full installation Business Intelligence Excel Update You can download SQL Server 2012 SP1 CTP4 from here. SQL Server 2012 SP1 CTP4 feature pack is available for download from here. Additionally, SQL Server 2012 SP1 CTP Express is available to download as well from here. Note that SQL Server 2012 SP1 CTP has SSMS as well. Reference: Pinal Dave (http://blog.SQLAuthority.com)       Filed under: PostADay, SQL, SQL Authority, SQL Query, SQL Server, SQL Tips and Tricks, T SQL, Technology

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• Best Easiest Fastest No Install USB Boot Disk in 4 Simple Steps :)

  - by PearlFactory

  USB Boot Disk When you look how to create USB Boot Disk on the web it is a nightmare   Here is the easiest I use that works for all MS prods At a computer running Windows Vista, Windows 7, or Windows Server 2008, run a command prompt as administrator and execute the following: Make Sure you have all explorer windows closed and nothing referencing the USB i.e a doc open in Word 1. C:\> diskpart DISKPART> list disk [Identify disk # of the USB key] DISKPART> sel disk 1 [assuming 1 was the # from above] DISKPART> clean [CAUTION—will wipe whichever disk is selected] DISKPART> cre part pri DISKPART> active DISKPART> assign DISKPART> format fs=ntfs quick DISKPART> exit C:\> exit 2. Copy the contents of the Windows Server 2008 R2 or any other MS OS  DVD/ISO to the USB key. 3. From the system tray, use the “Safely remove hardware” icon to safely remove the USB key from the computer. This helps ensure that all files have been fully written to the USB key. (Especially after the large file copy) 4. Restart,,,put usb in and Find reference from HP h20195.www2.hp.com/v2/GetPDF.aspx/4AA3-1317ENW.pdf

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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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• How do you pronounce the '...' operator

  - by Uri

  Now, in c++ '...' became a first class operator. In speech, how do you pronounce it? So far I've heard: dot dot dot triple dot ellipsis related: Is it OK to replace ... with ellipsis in writing? e.g. "The ellipsis operator expands the pack" EDIT (clarification): We are all aware that '...' as a punctuation mark is indeed called ellipsis. But in the context of C++ we don't pronounce the names of the punctuation mark. For example, the '&' operator, depends on the context is pronounced as 'and', 'bitwise and', 'address of', 'logical and' (when && is used), or 'reference'. It is rarely pronounced as 'ampersand'. In speeches, I've a feeling that 'dot dot dot' is used more often. For example: http://channel9.msdn.com/Events/GoingNative/GoingNative-2012/Variadic-Templates-are-Funadic (an excellent presentation about variadic templates). On the other hand, 'dot dot dot' is awkward hard to pronouce ('d' and 't' are both pronounce with the tongue). Can we pronounce it 'unpack'?

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• SQLAuthority News – Deployment guide for Microsoft SharePoint Foundation 2010

  - by pinaldave

  SharePoint and SQL Server both goes together – hands to hand. SharePoint installation is very interesting. At various organizations, the installation is very different and have various needs. SQL Server installation with SharePoint is equally important and I have often seen that it is being neglected. Microsoft has published the Deployment Guide for SharePoint Foundation. It talks about various database aspects as well. For optimal sharepoint installation the required version of SQL Server, including service packs and cumulative updates must be installed on the database server. The installation must include any additional features, such as SQL Analysis Services, and the appropriate SharePoint Foundation logins have to be added and configured. The database server must be hardened and, if it is required, databases must be created by the DBA. For more information, see: Hardware and software requirements (SharePoint Foundation 2010) Harden SQL Server for SharePoint environments (SharePoint Foundation 2010) Deploy by using DBA-created databases (SharePoint Foundation 2010) Deployment guide for Microsoft SharePoint Foundation 2010 Reference: Pinal Dave (http://blog.SQLAuthority.com) Filed under: Pinal Dave, PostADay, SQL, SQL Authority, SQL Query, SQL Server, SQL Tips and Tricks, T SQL, Technology Tagged: SharePoint

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• DDD Model Design and Repository Persistence Performance Considerations

  - by agarhy

  So I have been reading about DDD for some time and trying to figure out the best approach on several issues. I tend to agree that I should design my model in a persistent agnostic manner. And that repositories should load and persist my models in valid states. But are these approaches realistic practically? I mean its normal for a model to hold a reference to a collection of another type. Persisting that model should mean persist the entire collection. Fine. But do I really need to load the entire collection every time I load the model? Probably not. So I can have specialized repositories. Some that load maybe a subset of the object graph via DTOs and others that load the entire object graph. But when do I use which? If I have DTOs, what's stopping client code from directly calling them and completely bypassing the model? I can have mappers and factories to create my models from DTOs maybe? But depending on the design of my models that might not always work. Or it might not allow my models to be created in a valid state. What's the correct approach here?

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• WebSocket Samples in GlassFish 4 build 66 - javax.websocket.* package: TOTD #190

  - by arungupta

  This blog has published a few blogs on using JSR 356 Reference Implementation (Tyrus) integrated in GlassFish 4 promoted builds. TOTD #183: Getting Started with WebSocket in GlassFish TOTD #184: Logging WebSocket Frames using Chrome Developer Tools, Net-internals and Wireshark TOTD #185: Processing Text and Binary (Blob, ArrayBuffer, ArrayBufferView) Payload in WebSocket TOTD #186: Custom Text and Binary Payloads using WebSocket TOTD #189: Collaborative Whiteboard using WebSocket in GlassFish 4 The earlier blogs created a WebSocket endpoint as: import javax.net.websocket.annotations.WebSocketEndpoint;@WebSocketEndpoint("websocket")public class MyEndpoint { . . . Based upon the discussion in JSR 356 EG, the package names have changed to javax.websocket.*. So the updated endpoint definition will look like: import javax.websocket.WebSocketEndpoint;@WebSocketEndpoint("websocket")public class MyEndpoint { . . . The POM dependency is: <dependency> <groupId>javax.websocket</groupId> <artifactId>javax.websocket-api</artifactId> <version>1.0-b09</version> </dependency> And if you are using GlassFish 4 build 66, then you also need to provide a dummy EndpointFactory implementation as: import javax.websocket.WebSocketEndpoint;@WebSocketEndpoint(value="websocket", factory=MyEndpoint.DummyEndpointFactory.class)public class MyEndpoint { . . .   class DummyEndpointFactory implements EndpointFactory {    @Override public Object createEndpoint() { return null; }  }} This is only interim and will be cleaned up in subsequent builds. But I've seen couple of complaints about this already and so this deserves a short blog. Have you been tracking the latest Java EE 7 implementations in GlassFish 4 promoted builds ?

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• SQL SERVER – First Month as DBA Trainee – Disasters and Recovery

  - by pinaldave

  This blog post is written in response to the T-SQL Tuesday hosted by Allen Kinsel. He has selected very interesting subject for T-SQL Tuesday – Disaster and Recovery. This subject took me in past – my past. There were various things, I had done or proposed when I started very first month as a DBA trainee. I was tagged along with very senior DBA in my organization who always protected me or correct my mistake. He was great guy and totally understand the young mind of over-enthusiastic Trainee DBA. I respect him very much. Here are few things which I had learned in my very first month (not necessarily I have practices them on production). Never compress (zip) native backup using any tools, when disaster happen sometime the extra time to un-compress the database can be too long and not acceptable for business SLA Do not truncate logs After restoring full database backup – only restore latest differential back, no need to restore all the backup Always write WHERE condition when deleting and updating Sr. DBA always advised me – always keep your résumé ready and car ready – you never know when you can not recover disaster! Well for sure it was a joke. Today’s T-SQL Tuesday remind me of my very first month as DBA trainee. Reference: Pinal Dave (http://blog.SQLAuthority.com) Filed under: About Me, Best Practices, Pinal Dave, PostADay, SQL, SQL Authority, SQL Query, SQL Server, SQL Tips and Tricks, T SQL, Technology

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• SQL SERVER – ORDER BY ColumnName vs ORDER BY ColumnNumber

  - by pinaldave

  I strongly favor ORDER BY ColumnName. I read one of the blog post where blogger compared the performance of the two SELECT statement and come to conclusion that ColumnNumber has no harm to use it. Let us understand the point made by first that there is no performance difference. Run following two scripts together: USE AdventureWorks GO -- ColumnName (Recommended) SELECT * FROM HumanResources.Department ORDER BY GroupName, Name GO -- ColumnNumber (Strongly Not Recommended) SELECT * FROM HumanResources.Department ORDER BY 3,2 GO If you look at the result and see the execution plan you will see that both of the query will take the same amount of the time. However, this was not the point of this blog post. It is not good enough to stop here. We need to understand the advantages and disadvantages of both the methods. Case 1: When Not Using * and Columns are Re-ordered USE AdventureWorks GO -- ColumnName (Recommended) SELECT GroupName, Name, ModifiedDate, DepartmentID FROM HumanResources.Department ORDER BY GroupName, Name GO -- ColumnNumber (Strongly Not Recommended) SELECT GroupName, Name, ModifiedDate, DepartmentID FROM HumanResources.Department ORDER BY 3,2 GO Case 2: When someone changes the schema of the table affecting column order I will let you recreate the example for the same. If your development server where your schema is different than the production server, if you use ColumnNumber, you will get different results on the production server. Summary: When you develop the query it may not be issue but as time passes by and new columns are added to the SELECT statement or original table is re-ordered if you have used ColumnNumber it may possible that your query will start giving you unexpected results and incorrect ORDER BY. One should note that the usage of ORDER BY ColumnName vs ORDER BY ColumnNumber should not be done based on performance but usability and scalability. It is always recommended to use proper ORDER BY clause with ColumnName to avoid any confusion. Reference: Pinal Dave (http://blog.sqlauthority.com) Filed under: Pinal Dave, SQL, SQL Authority, SQL Query, SQL Scripts, SQL Server, SQL Tips and Tricks, T SQL, Technology

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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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• So, whats the best book on C#?

  - by mbcrump

  I see this question several times a day from newbie’s to professionals. I have listed the best C# books that I have read so far.   ECMA-334 C# Language Specification. – FREE book. This is probably the best place to start. Read it backwards and forwards and you can even request a hard copy. Absolute Beginners Guide to C Sharp 2nd Edition – Used this early on and found it very useful even if its game programming. C-Sharp 2.0 - The Complete Reference, 2nd Edition (McGraw-Hill, 2006) – One of the most useful books that is always with me. It contains short example code and is very well written. Dot Net Zero - Charles Petzold  - FREE book and you should definately give it a read. C Sharp in Depth by Jon Skeet -  Probably one of the most in depth books on C Sharp and definitely not for beginners. Jon Skeet knows C# like no other. I would consider this book the Bible of C#. If you understand 50% of this book, you have a good understanding of the language.  CLR via C Sharp 3rd Edition – I just started reading this book and it is another book thats not for beginners. If you really want to understand the CLR then give this book a try. Well, thats it. I hope you enjoy the books as I have spent a lot of time researching different C# books.

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• Checking if your SIMPLE databases need a log backup

  - by Fatherjack

  Hopefully you have read the blog by William Durkin explaining why your SIMPLE databases need a log backup in some cases. There is a SQL Server bug that means in some cases databases are marked as being in SIMPLE RECOVERY but have a log wait type that shows they are not properly configured. Please read his blog for the full explanation and a great description of how to reproduce the issue. As part of our (William happens to be my Boss) work to recover our affected databases I wrote this small PowerShell script to quickly check our servers for databases that needed the attention that William details.  cls $Servers = “Server01″,”Server02″,”etc”,”etc” foreach($Server in $Servers){ write-host “************” $server “****************”     $server = New-Object Microsoft.sqlserver.management.smo.server $Server     foreach($db in $Server.databases){         $db | where {$_.RecoveryModel -eq “Simple” -and $_.logreusewaitstatus -ne “nothing”} | select name, LogReuseWaitStatus     } } If you get any results from this query then you should consult Williams blog for the details on what action you should take. This script does give out false positives if in some circumstances depending on how busy your databases are. Hopefully this will let you check your servers quickly and if you find any problems you can reference Williams blog to understand what you need to do.

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• How to create water like in new super mario bros?

  - by user1103457

  I assume the water in New super mario bros works the same as in the first part of this tutorial: http://gamedev.tutsplus.com/tutorials/implementation/make-a-splash-with-2d-water-effects/ But in new super mario bros the water also has constant waves on the surface, and the splashes look very different. What's also a difference is that in the tutorial, if you create a splash, it first creates a deep "hole" in the water at the origin of the splash. In new super mario bros this hole is absent or much smaller. When I refer to the splashes in new super mario bros I am referring to the splashes that the player creates when jumping in and out of the water. For reference you could use this video: http://www.ign.com/videos/2012/11/17/new-super-mario-bros-u-3-star-coin-walkthrough-sparkling-waters-1-waterspout-beach just after 00:50, when the camera isn't moving you can get a good look at the water and the constant waves. there are also some good examples of the splashes during that time. How do they create the constant waves and the splashes? I am programming in XNA. (I have tried this myself but couldn't really get it all to work well together) (and as bonus questions: how do they create the light spots just under the surface of the waves, and how do they texture the deeper parts of the water? This is the first time I try to create water like this.)

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• How can I support objects larger than a single tile in a 2D tile engine?

  - by Yheeky

  I´m currently working on a 2D Engine containing an isometric tile map. It´s running quite well but I'm not sure if I´ve chosen the best approach for that kind of engine. To give you an idea what I´m thinking about right now, let's have a look at a basic object for a tile map and its objects: public class TileMap { public List<MapRow> Rows = new List<MapRow>(); public int MapWidth = 50; public int MapHeight = 50; } public class MapRow { public List<MapCell> Columns = new List<MapCell>(); } public class MapCell { public int TileID { get; set; } } Having those objects it's just possible to assign a tile to a single MapCell. What I want my engine to support is like having groups of MapCells since I would like to add objects to my tile map (e.g. a house with a size of 2x2 tiles). How should I do that? Should I edit my MapCell object that it may has a reference to other related tiles and how can I find an object while clicking on single MapCells? Or should I do another approach using a global container with all objects in it?

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