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  • what would be a good way to implement/render a 2d tiled map for a browser game?

    - by jj_
    I've made this little rpg ruby game I did while learning and now I'd like to make it into a browser game. I've already set up Sinatra framework to serve it, so what I am looking for, before everything else, is a way to represent the game map in browser (location attributes are stored in db). A new map is randomly generated by code for each new game at each game start. For now forget db, and let's say a map (say 100x100 "squares") is stored as a tridimensional array. (x,y, ...) Last "dimension" of array stores who & what is at that map cell: a player, a building, whatever. So all I have to do is render those "squares" or array cells to a 2d tiled map in the browser. The map does not need to refresh or be dynamically fetched as you scroll it, (at least at this stage of development) but, a technology which would allow me to do so in future would be a good reason for choosing it. Things that I thought of: html tables, html5 canvas, some js framework which is designed exactly with this purpose (which I do not know of = please advice). Yes I know about gamequery-js framework, but I've never used it, and I don't know if it's going to slow down everything down to inusability as I'm adding new features (scrolling, ajax). I really don't know of any other alternatives.. maybe there are lighter approaches? Easier or more minimalistic ways ? More targeted js framework which is the right tool for the job? Maybe just some html canvas code, or even simple image maps, or images with absolute positioning will be enough? The thing is I'd like to start simple, and then gradually make it better, so, as I said before, I'd prefer something that will give me room for improvement or is headed toward new web tendencies but which will also give me a bit of gratification in the beginning :) So.. advices are needed! And appreciated! :) Thanks p.s. Flash is excluded because I don't like it.

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  • Stylecop 4.7.39.0 has been released

    - by TATWORTH
    Stylecop  4.7.38.0 has been released at http://stylecop.codeplex.com/releases/view/79972The release notes follow:Allow case sensitivity in the deprecated words and recognised words listStyleing fixes.Fix for documentation spelling checks inside nested xml nodes.Look for CustomDictionary.xml files in the folder of the cs file.Update the TabIndex in the spelling tab.Updating default deprecated words and their alternatives.Add support for specifying dictionary folders in the settings.StyleCop file. Like :Rename StyleCopViolationError to StyleCopHighlightingError and all associated types.Fix the Bulb Item for spelling mistakes to replace matching words correctly.Fix the spelling parser for strings beginning with $$THREADING FIX: Make StyleCop execute analysis in proces and not create 2 threads. Use Countdown Event when we move to .NET 4.Use the naming service for the Culture specified for the project. Pass the actual violation through to ReSharper.Ensure Registry access code works for VS2008 addins.Rollback Registry changes to ensure VS2008 plugin loads correctly.Adding support for preferred alternative words for spelling. Adding deprecated word support into Settings.StyleCop file. Spelling is only checked if Office 2010 is installed. Allow editing of deprecated words and their alternatives in the Settings editor.Adding new resource stringsAdding BulbItem and Quick fixes for spelling errors.Moving StringExtensions to common area.Styling fixes.Report all spelling errors found on a line.Start of 4.7.39.0 dev.

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  • Shouldn't tasksel be installed by default?

    - by Neil Trodden
    It just isn't there on the base install of a virtual host I am evaluating from an ISP. Not in path: root@vpstest2:~# tasksel -bash: tasksel: command not found Config files not there: root@vpstest2:~# ls /usr/share/tas* ls: cannot access /usr/share/tas*: No such file or directory It's just .... gone! root@vpstest2:~# whereis tasksel tasksel: I'm a little concerned that the install is broken. Running locate spews this out: locate: can not stat () `/var/lib/mlocate/mlocate.db': No such file or directory

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  • Unittest test case only touches the file name

    - by Chen OT
    I was told that unittest is fast and the tests which touches DB, across network, and touches FileSystem are not unittest. In one of my testcases, its input are the file names (amount about 300~400) under a specific folder. Although these input are part of file system, the execution time of this test is very fast. Should I moved this test, which is fast but touches file system, to higher level test?

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  • Use the &ldquo;using&rdquo; statement on objects that implement the IDisposable Interface

    - by mbcrump
    From MSDN : C#, through the .NET Framework common language runtime (CLR), automatically releases the memory used to store objects that are no longer required. The release of memory is non-deterministic; memory is released whenever the CLR decides to perform garbage collection. However, it is usually best to release limited resources such as file handles and network connections as quickly as possible. The using statement allows the programmer to specify when objects that use resources should release them. The object provided to the using statement must implement the IDisposable interface. This interface provides the Dispose method, which should release the object's resources. In my quest to write better, more efficient code I ran across the “using” statement. Microsoft recommends that we specify when to release objects. In other words, if you use the “using” statement this tells .NET to release the object specified in the using block once it is no longer needed.   So Using this block: private static string ReadConfig()         {             const string path = @"C:\SomeApp.config.xml";               using (StreamReader reader = File.OpenText(path))             {                 return reader.ReadToEnd();             }         }   The compiler converts this to: private static string ReadConfig1() {     StreamReader sr = new StreamReader(@"C:\SomeApp.config.xml");       try     {         return sr.ReadToEnd();     }     finally     {         if (sr != null)             ((IDisposable)sr).Dispose();     }   }

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  • How to build a good service layer in ASP.NET?

    - by Swippen
    I have looked through some questions, technologies for building a good service layer but I have some questions regarding this that I need help with. First some information of what I have for requirements. We currently have a number of web applications that talk to each other in a spiderweb looking way (all talking to each other in a confusing way via webservices and database data). We want to change this so that all applications go through a service layer where we can work more with cache and encapsulate common functionality and more. We want this layer to also have a Web API so that 3rd party clients can consume information from the service. The problem I see is that if we build the service layer with say MVC4 Web API don't we need to communicate between the application using the webAPI meaning we have to construct URLs and consume JSON/Xml. That does not sound too effective. I assume a better method would be working with entities and WCF to communicate between the application but then we might loose the Web API magic? So the question is if there is a way to consume a service layer as both a Web API (JSON/XML) and as a more backend service layer with entities. If we are forced to use 2 different service layers we might have to duplicate some functionality and other bad things. Hope the question is clear enough and please ask if you need any more information.

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  • What a .NET developer should know or practice (know how to do)? [closed]

    - by Olav
    I would like to have a list of basic tasks that .NET developers of different flavors using Visual Studio/SQL Server should be able to do. Ideally with a kind of lab environment where I could practice. VB.NET or C#, latest versions of ASP.NET, WPF and Silverlight. I am looking for small practical "atomic" tasks (like adding a db connection for example) I am looking for some existing labs/lists rather than specific points in the answers. (But I would not mind collaborating in developing material).

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  • Oracle Solaris 11.1

    - by user12616590
    Oracle Solaris 11.1 was announced at Oracle OpenWorld recently. This release added 300 new performance and feature enhancements. My favorite new features: Solaris Zones on Shared Storage Support for 32 TB (!) of RAM Improved Oracle RAC lock latency Dynamically resize the Oracle DB SGA Industry-first support for FedFS You can learn more from the press release or by attending the Solaris 11.1 webcast on November 7.

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  • Oracle Magazine, November/December 2005

    Oracle Magazine November/December 2005 features articles on the 2005 Editors' Choice Awards, the Enterprise Grid Alliance, Oracle AWM 10g, Oracle Developer Tools for .NET, Oracle HTML DB, Oracle Data Provider for .NET, Oracle JDeveloper, Oracle ADF, and much more.

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  • New HP dm4 - No audio on ubuntu 11.10 64bits

    - by Haze1
    I just got a new laptop, HP dm4, and I'm having problems getting the audio to work properly on it. http://www.alsa-project.org/db/?f=7b697a35465a9f7236fb94deb9ff97fa65e55489 I tried to edit /etc/modprobe.d/alsa-base.conf and added: option snd-hda-intel model=ref this caused the audio to work, but it's muffled. I'm wondering if anybody knows what would be the correct options to get this POS to work. Thanks in advance

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  • Reliable file copy (move) process - mostly Unix/Linux

    - by mfinni
    Short story : We have a need for a rock-solid reliable file mover process. We have source directories that are often being written to that we need to move files from. The files come in pairs - a big binary, and a small XML index. We get a CTL file that defines these file bundles. There is a process that operates on the files once they are in the destination directory; that gets rid of them when it's done. Would rsync do the best job, or do we need to get more complex? Long story as follows : We have multiple sources to pull from : one set of directories are on a Windows machine (that does have Cygwin and an SSH daemon), and a whole pile of directories are on a set of SFTP servers (Most of these are also Windows.) Our destinations are a list of directories on AIX servers. We used to use a very reliable Perl script on the Windows/Cygwin machine when it was our only source. However, we're working on getting rid of that machine, and there are other sources now, the SFTP servers, that we cannot presently run our own scripts on. For security reasons, we can't run the copy jobs on our AIX servers - they have no access to the source servers. We currently have a homegrown Java program on a Linux machine that uses SFTP to pull from the various new SFTP source directories, copies to a local tmp directory, verifies that everything is present, then copies that to the AIX machines, and then deletes the files from the source. However, we're finding any number of bugs or poorly-handled error checking. None of us are Java experts, so fixing/improving this may be difficult. Concerns for us are: With a remote source (SFTP), will rsync leave alone any file still being written? Some of these files are large. From reading the docs, it seems like rysnc will be very good about not removing the source until the destination is reliably written. Does anyone have experience confirming or disproving this? Additional info We will be concerned about the ingestion process that operates on the files once they are in the destination directory. We don't want it operating on files while we are in the process of copying them; it waits until the small XML index file is present. Our current copy job are supposed to copy the XML file last. Sometimes the network has problems, sometimes the SFTP source servers crap out on us. Sometimes we typo the config files and a destination directory doesn't exist. We never want to lose a file due to this sort of error. We need good logs If you were presented with this, would you just script up some rsync? Or would you build or buy a tool, and if so, what would it be (or what technologies would it use?) I (and others on my team) are decent with Perl.

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  • SourceMonitor Beta Test Version 3.3.2.261 now available

    - by TATWORTH
    Source Monitor is a useful independent utility for producing code metrics. Beta Test Version 3.3.2.261 has been released.Download and test Source Monitor beta (Version 3.3.2.261 - 2.30 MBytes)  via HTTP"The Beta page is at http://www.campwoodsw.com/smbeta.htmlHere is the official description of it>The freeware program Source Monitor lets you see inside your software source code to find out how much code you have and to identify the relative complexity of your modules. For example, you can use Source Monitor to identify the code that is most likely to contain defects and thus warrants formal review. Source Monitor, written in C++, runs through your code at high speed. Source Monitor provides the following: Collects metrics in a fast, single pass through source files.Measures metrics for source code written in C++, C, C#, VB.NET, Java, Delphi, Visual Basic (VB6) or HTML.Includes method and function level metrics for C++, C, C#, VB.NET, Java, and Delphi. Offers Modified Complexity metric option. Saves metrics in checkpoints for comparison during software development projects.Displays and prints metrics in tables and charts, including Kiviat diagrams.Operates within a standard Windows GUI or inside your scripts using XML command files.Exports metrics to XML or CSV (comma-separated-value) files for further processing with other tools.

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  • Windows Phone 7 v. Windows 8 Metro &ldquo;Same but Different&rdquo;

    - by ryanabr
    I have been doing development on both the Windows Phone 7 and Windows 8 Metro style applications over the past month and have really been enjoying doing both. What is great is that Silverlight is used for both development platforms. What is frustrating is the "Same but Different" nature of both platforms. Many similar services and ways of doing things are available on both platforms, but the objects, namespaces, and ways of handling certain cases are different. I almost had a heart attack when I thought that XmlDocument had been removed from the new WinRT. I was relived (but a little annoyed)  when I found out that it had shifted from the "System.Xml" namespace to the "Windows.Data.Xml.Dom" namespace. In my opinion this is worse than deprecating and reintroducing it since there isn't the lead time to know that the change is coming, maker changes and adjust. I also think the breaks the compatibility that is advertised between the WinRT and .NET framework from a programming perspective, as the code base will have to be physically different if compiled for one platform versus the other. Which brings up another issue, the need for separate DLLs with for the different platforms that contain the same C# code behind them which seems like the beginning of a code maintenance headache. Historically, I have kept source files "co-located" with the projects that they are compiled into. After doing some research, I think I will end up keeping "common" files that need to be compiled in to DLLs for the different platforms in a seperate location in TFS, not directly included in any one Visual Studio project, but added as links in the project that would get compiled into the windows 7 phone, or Windows 8. This will work fine, except for the case where dependencies don't line up for each platform as described above, but will work fine for base classes that do the raw work at the most basic programming level.

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  • dropbox configuration

    - by Funenga
    I've dropbox v1.4.17 installed and I want to change the path from (...)/Dropbox to (...)/dropbox. I think until v1.2 this was done by changing dropbox_path field in the sqlite file ~/.dropbox/config.db. Now, this field is hidden inside the encrypted ~/.dropbox/config.dbx (security reasons [1], I guess). Anyone has a solution to this? I'm thinking about placing my dropbox folder in ~/.local/share/Dropbox and then linking that to the path I want to set. [1] http://www.youtube.com/watch?v=tqmqtborOSw

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  • Tomcat directly serve static (css, js) files shared by multiple applications

    - by Josvic Zammit
    I'm using the ExtJS framework which has a bulk of js and css files that are used for all apps. I intend to share these between a number of web applications (different war files). For this reason I would like to serve ExtJS js and css directly from the web server, in my case Tomcat6, which can be used to serve static files, as in this helpful link. Therefore I put my files under /var/lib/tomcat6/webapps/ROOT/extjs/. The static files that are directly under that directory are served correctly, e.g. /extjs/ext.js correctly serves the file at /var/lib/tomcat6/webapps/ROOT/extjs/ext.js. However files in lower-level directories, for example /extjs/welcome/css/welcome.css, which should serve the file at /var/lib/tomcat6/webapps/ROOT/extjs/welcome/css/welcome.css, return a 404. TL/DR Tomcat serves static files only at top-level directory. A 404 is returned for files deeper in the hierarchy. Config file contents: server.xml application's web.xml

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  • Best way to set up servers for .NET performance [migrated]

    - by msigman
    Assume we have 3 physical servers and let's say we are only interested in performance, and not reliability. Is it better to give each server a specific function or make them all duplicates and split the traffic between them? In other words dedicate 1 as DB server, 1 as web server, and 1 as reporting server/data warehouse, or better to put all three services on each server and use them as web farm?

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  • Unicode in PostgreSQL 8.4

    - by user8382
    I installed the "postgresql-8.4" package with default options. Everything worked fine, however I can't seem to manage to create unicode databases: -- This doesn't work createdb test1 --encoding UNICODE -- This works createdb test2 The error message "createdb: database creation failed: ERROR: new encoding (UTF8) is incompatible with the encoding of the template database (SQL_ASCII)" is a bit puzzling because (afaik) I don't use a template for creating the new db, or is it implicitely referring to the default "postgres" database for some reason ? Or maybe I'm missing a setting in a .conf file ?

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  • configure postfix to send as different domains

    - by Cerales
    I have postfix configured to receive mail for multiple domains. The primary domain goes through a standard postfix setup, whereas a secondary domain is handed by a /etc/postfix/virtual.db file which maps addresses for the secondary domain to other unix users. Incoming mail works perfectly, but when I send mail as users on the secondary domain, the mail receiver still sees it as coming from [unix username]@[primarydomain].net. Can anyone help me figure out how to configure the virtual postfix domain to send mail through the same domain it receives it as?

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  • Is the test, which touches the filenames under directory, a kind of unittest? [on hold]

    - by Chen OT
    I was told that unittest is fast and the tests which touches DB, across network, and touches FileSystem are not unittest. In one of my testcases, its input are the file names (amount about 300~400) under a specific folder. Although these input are part of file system, the execution time of this test is very fast. Should I moved this test, which is fast but touches file system, to higher level test?

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  • Solr performance (tomcat) - High load

    - by Ward Loockx
    I'm relatively new to solr. I have a production site running on a VPS, but now I'm having serious load issues. I don't know where to start in order to get the load down... VPS specs (linode.com 512) 512 MB RAM 4 CPU (1x priority) Looks like my solr server (tomcat) is using a lot of CPU power You can find my solrconfig.xml on http://pastebin.com/qdfi8Med and my schema.xml on http://pastebin.com/rRusDP8b I've tried to increaese the cache size, but this didn't do anything on the load. You can see the stats page below. EDIT - Because the screenshot was unclear, I took smaller screenshots if what (I think) is important. Dismax query handler stats Caches stats Thanks for the help!

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  • Are these 2 strings equal?

    - by Shawn Cicoria
    I spent way too many hours on this one. I was going through full configuration of ADFS v2 with WCF active client scenarios and using self generated certificates, had all things lined up perfectly.  Using the certificate snap in I just copied the thumbprint into the IdentityModel section (trusted issuers) in my service config.  var one = "?ecb8fd950978d94ae21d4f073227fdc2718bdb96"; var two = "ecb8fd950978d94ae21d4f073227fdc2718bdb96"; What ended up is in the first, there’s a buried nonprintable series of characters (‎ – or E2 80 8E in 0x format). 2 lessons, turn on tracing sooner and don’t trust Copy & Paste – all the time.  I ended up creating a quick Issuer Name Registry class so I could debug and finally saw the issue. namespace MyService { public class IssuerValidator : ConfigurationBasedIssuerNameRegistry { public IssuerValidator() :base() { } public IssuerValidator(XmlNodeList xml) : base(xml) { } public override string GetIssuerName(System.IdentityModel.Tokens.SecurityToken securityToken) { X509SecurityToken token = securityToken as X509SecurityToken; if (token == null) { return "who cares"; } else { return token.Certificate.Thumbprint; } } } I do have a utility I wrote to navigate the cert store and emit the thumbprint to avoid these issues, I just didn’t have it available on my machine at the time.

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  • Can I use Google AdSense within a banner rotator?

    - by Derfder
    I have 3 rotating banners on one 728x90 position on my website, so every time a page is loaded another banner is shown. One of these is AdSense. Is it legal, I mean is this strictly prohibited or not? Because, the code is basically stored in db table in my CMS module in Wordpress, so I guess it is OK. But I am asking to be sure. What is your personal experience? Does Google penalize sites with banner rotators?

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  • No audio on an HP dm4

    - by Haze1
    I just got a new laptop, HP dm4, and I'm having problems getting the audio to work properly on it. http://www.alsa-project.org/db/?f=7b697a35465a9f7236fb94deb9ff97fa65e55489 I tried to edit /etc/modprobe.d/alsa-base.conf and added: option snd-hda-intel model=ref this caused the audio to work, but it's muffled. I'm wondering if anybody knows what would be the correct options to get this POS to work.

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  • How to display downloaded youtube annotations ( not captions) on offline video player?

    - by kowalsk
    i need to display the annotations for some of my downloaded youtube videos. It's also important to make them closeable. Making them clickable would also be nice. What i found out so far: From what i understand there there is a vlc plugin/extension that could also render the annotations but i'm having a hard time finding it. Mplayer might also be an option but i'd have to convert the xml files to .bmp and then use a bmov filter to play them. Any suggestions welcome. Edit: to further clarify i would like to display/overlay annotations from a youtube xml file (i'm willing to go through a conversion step if i have to) pretty much the same way i can display subtitles from a srt or sub file. Edit2: I'm open to using other players too ( if vlc is not a feasible option for what i want)

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