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• XNA 4.0 Refresh AudioEngine, WaveBank and Others Not Found

  - by Peteyslatts

  I'm going through the Learning XNA 4.0 book, and unfortunately I installed XNA 4.0 refresh. All the code up until now has worked, with the exception of me needing to remove the Framework.Net and Framework.Storage. (As a side question, will this be problematic later?) The problem I'm having now is that in my Game1.cs file, I have imported all of the XNA.Framework libraries, and when I try and create instances of any of the following classes, an error pops up saying VisualStudio can't find them: AudiEngine, WaveBank, SoundBank, and Cue. I have googled around for a while, and the only solution I saw was to import Microsoft.Xna.Framework.Xact, but this doesn't seem to exist for me. Any help is much appreciated, Thanks Peter.

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• What does "GPL with classpath exception" mean in practice?

  - by Thilo

  Oracle seems to license all their Java-related open source code under the GPL with a classpath exception. From what I understand, this seems to allow to combine these libraries with your own code into products that do not have to be covered by the GPL. How does this work? What are examples of how I can and cannot use these classes? Why was this new license used as opposed to the LGPL, which seems to allow for pretty much the same things, but is better established and understood? What are the differences to the LGPL?

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• How to market yourself as a software developer?

  - by karlphillip

  I have noticed that this is a frequent issue among younglings from technical areas such as ours. In the beginning of our careers we simply don't know how to sell ourselves to our employers, and random guy #57 (who is a programmer, but not as good as you - technically) ends up getting a raise/promotion just because he knows how to communicate and market himself better than you. Many have probably seen this happen in the past, and most certainly many more will in the future. What kind of skill/ability (either technical, or of other nature) do you think is relevant to point out when doing a job interview or asking for a raise, besides listing all the programming languages and libraries you know?

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• What functional language is most suited to create games with?

  - by Ricket

  I have had my eye on functional programming languages for a while, but am hesitating to actually get into them. But I think it's about time I at least starting glancing that direction to make sure I'm ready for anything. I've seen talk of Haskell, F#, Scala, and so on. But I have no clue the differences between the languages and their communities, nor do I particularly care; except in the context of game development. So, from a game development standpoint, which functional programming language has the most features suited for game programming? For example, are there any functional game development libraries/engines/frameworks or graphics engines for functional languages? Is there a language that handles certain data structures which are commonly used in game development better? Bottom line: what functional programming language is best for functional game programming, and why? I believe/hope this question will declare a clear best language therefore I haven't marked it CW despite its subjective tendency.

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• Lua and multi-paradigm programming: scope and capabilities

  - by Ef Es

  Despite having started learning programming with Pascal and C, after the jump to OO (C++, Java) I lost sense of the structured programming paradigm. I have started learning Lua and I have researched many tutorials, but all of them only cover basic operations and language features and capabilities. They feel more like a reference doc than a programmer's guide. Now, when trying to work with day to day tasks, how does one go through most common design patterns like observer, or multithreaded programming, creating UI elements and polling system calls for keyboard or sensors? Is it even feasible in this languages or you have to work with the C binding, libraries and low-level programming to get most stuff done? Do I get the Lua scope wrong?

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• Less is More Redux

  In my short happy life as a developer, Ive run into all kinds of development efforts that include frameworks, libraries, web sites, and much more.The one thing that stands out as an irritant to me is complexity. Specifically, unnecessary complexity. Ive seen developers author entire library assemblies that provide wrapper utility methods consisting of calls to .NET BCL methods that take one line of code methods that could have been called inline without even the need for the helper classes.Ive seen...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• Game Patching Mac/PC

  - by Centurion Games

  Just wondering what types of solutions are available to handle patching of PC/Mac games that don't have any sort of auto updater built into them. In windows do you just spin off some sort of new install shield for the game that includes the updated files, hope you can read a valid registry key to point to the right directory, and overwrite files? If so how does that translate over to Mac where the game is normally just distributed as straight up .app file? Is there a better approach than the above for an already released product? (Assuming direct sells, and not through a marketplace that features auto-updating like Steam.) Are there any off the shelf auto-updater type libraries that could also be easily integrated with a C/C++ code base even after a game has been shipped to make this a lot simpler, and that are cross platform? Also how do auto-updaters work with new OS's that want applications and files digitally signed?

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• Learn a language bottom-up or top-down?

  - by Hanno Fietz

  When starting the first project in a new language, you have basically two approaches to learning. Either you do a quick Google search, pull together the most popular frameworks and libraries and work your way from their tutorials towards what you want to achieve (top-down). Or you start with the language basics and the standard library and by and by replace your own simple components with more sophisticated third-party components once you know what you're searching for (bottom-up). Now I'm about to embark on my first serious Javascript project. There's probably as much to know about the language as there is about jQuery, ExtJS and whathaveyou, and I'm trying to decide what to focus on.

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• What open source POSIX compliance test suites are available?

  - by Richard Pennington

  I'm working on a small open source project, ELLCC, that uses clang/LLVM as a cross compiler for various target processors. For the runtime environment, I'm using the NetBSD libraries and porting them to target Linux and standalone systems. I want to run a POSIX compliance test suite on the code. I've found the Open POSIX Test Suite, which looks like a good start, but it hasn't been updated since 2005. I've done some preliminary testing (with gcc and ecc under Linux), and it looks like it needs a few updates for modern compilers. My questions are: Does the Open POSIX Test Suite live on somewhere in a more up to date form? Are there other open source alternatives?

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• Upgrade from 10.10 to 11.04

  - by hemanta pathak

  On doing an upgrade from 10.10. to 11.04 using Upgrade Manager everything works fine. But on installing a software that bundle its owns runtime environment( loader and system files) and installs the custom runtime ( basically loader) in the location where the native one resides, the above mentioned upgrade fails.(Upgrade starts and after sometime it encounters an error and aborts.) Basically , /usr/bin/dpkg throws up an error on being unable to locate a system shared library in the aforesaid third party runtime folder ( /usr/bin/dpkg should not search the third party runtime folder.Instead it should look at the system default folder) But if we remove the installed third party loader from the default system location /lib and place it in some other location , the upgrade problem goes away. This makes me believe /usr/bin/dpkg invokes(loads) the wrong loader and as such goes looking for the dependent libraries in the third party folder. Can someone take a look at this ? is there some bug with dpkg

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• Sortie de Sonar 2.1, l'outil de qualimétrie logicielle Open Source pour les projets Java par SonarSo

  Bonjour, SonarSource a annoncé la release de Sonar 2.1 qui correspond à un lot de 51 améliorations / corrections dont des fonctionnalités comme :plugin "Squid" : de nouvelles règles pour détecter les méthodes private/protected non utilisées ainsi que les appels de méthodes dépréciées nouvelle page "Libraries" permettant de restituer les librairies utilisées (projets Maven) nouvelle page "Dependencies" pour rechercher les projets utilisant une version donnée d'une librairie nouvelle page "System Info" permettant d'auditer le système (plugins installés, statistiques de la base de données et de la JVM, etc.) Que pensez-vous de Sonar ? Quelles fonctionnalités lui apporteraient de la vale...

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• About floating point precision and why do we still use it

  - by system_is_b0rken

  Floating point has always been troublesome for precision on large worlds. This article explains behind-the-scenes and offers the obvious alternative - fixed point numbers. Some facts are really impressive, like: "Well 64 bits of precision gets you to the furthest distance of Pluto from the Sun (7.4 billion km) with sub-micrometer precision. " Well sub-micrometer precision is more than any fps needs (for positions and even velocities), and it would enable you to build really big worlds. My question is, why do we still use floating point if fixed point has such advantages? Most rendering APIs and physics libraries use floating point (and suffer it's disadvantages, so developers need to get around them). Are they so much slower? Additionally, how do you think scalable planetary engines like outerra or infinity handle the large scale? Do they use fixed point for positions or do they have some space dividing algorithm?

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• Database Change Auditing - Part of or Abstracted from ORM / Application Layer?

  - by BrandonV

  My fellow developers and I are at a crossroads in how to go about continuing our auditing of database changes. Most of our applications log changes via INSERT, UPDATE, and DELETE triggers. A few of our newer applications audit at the ORM layer; specifically using Hibernate Envers. While ORM layer auditing provides a much cleaner interface and is much more maintainable, it will not capture any manual database changes that are made. ORM layer auditing also means that our libraries will currently require a dependency on our ORM implementation unless, specifically in our case for example, JPA plans on providing something in the near future. Is there a common paradigm that addresses this?

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• What's the current best practice for C multithreading?

  - by Dexter

  I've been a Java (and PHP) developer for most of my life, but will need to use C for my next project. I remember some basic stuff we did back in school with fork, pthread, semaphores, etc. but I'm not sure if that's still the "way to go" here, or if there have been any recent developments/improvements etc. Google's results seem to be fairly dated. Or does that just mean that this is still the current "state of the art"? Or will I have to use a (system-independent) libary like glib if I want higher-level abstractions, like synchronized queues? What other libraries are there? (The programm will only have to run on Linux though)

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• Issue in Webscrapping in C# : Downloading and parsing zipped text files

  - by user64094

  I am writing an webscrapper, to do the download content from a website. Traversing to the website/URL, triggers the creation of a temporary URL. This new URL has a zipped text file. This zipped file is to be downloaded and parsed. I have written a scrapper in C# using WebClient and its function - DownloadFileAsync(). The zipped file is read from the designated location on a trapped DownloadFileCompleted event. My issue : The Windows 'Open/Save dialog is triggered". This requires user input and the automation is disrupted. Can you suggest a way to bypass the issue ? I am cool with rewriting the code using any alternate libraries. :) Thanks for reading,

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• How do I keep co-worker from writing horrible code? [closed]

  - by Drew H

  Possible Duplicate: How do I approach a coworker about his or her code quality? I can handle the for in.. without the hasOwnProperty filtering. I can handle the blatant disregard for the libraries I've used in the past and just using something else. I can even handle the functions with 25 parameters. But I can't handle this. var trips = new Array(); var flights = new Array(); var passengers = new Array(); var persons = new Array(); var requests = new Array(); I've submitted documents on code style, had code reviews, gave him Douglas Crockford's book, shown him presentations, other peoples githubs, etc. He still show the same horrible Javascript style. How else could I approach this guy? Thanks for any help.

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• R Statistical Analytics with Faster Performance for Enterprise Database Access and Big Data

  - by Mike.Hallett(at)Oracle-BI&EPM

  Further demonstrating commitment to the open source community, Oracle has just released enhanced support of the R statistical programming language for Oracle Solaris and AIX in addition to Linux and Windows, connectivity to Oracle TimesTen In-Memory Database in addition to Oracle Database, and integration of hardware-specific Math libraries for faster performance.  Oracle’s Open Source distribution of R is available with the Oracle Big Data Appliance and available for download now. Oracle also offers Oracle R Enterprise, a component of Oracle Advanced Analytics that enables R processing on Oracle Database servers.   This all goes to make big data analytics more accessible in the enterprise and improving data scientist productivity with faster performance Since its introduction in 1995, R has attracted more than two million users and is widely used today for developing statistical applications that analyze big data. Analyst Report: Oracle Advances its Advanced Analytics Strategy  

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• How do you install less css command line compiler?

  - by chrisjlee

  From my understanding and correct me if I'm wrong, I have to get ruby or NPM installed to get the less css compiler working. I don't have any ruby installed and I'm not really sure how to get my computer to that point. I also want to minimize my footprint; installing the minimal amount of ruby libraries if possible (because i will never use ruby except for when i run less). What are the steps involved in getting less working and running? Before you down vote, I know there was this previous thread (Less CCS compiler install). This particular person already has some other packages installed. I'm trying to figure out all the packages needed to get to that point. Or if someone could point me to the right documentation I would be thrilled!

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• Comparing the Performance of Visual Studio&apos;s Web Reference to a Custom Class

  As developers, we all make assumptions when programming. Perhaps the biggest assumption we make is that those libraries and tools that ship with the .NET Framework are the best way to accomplish a given task. For example, most developers assume that using <a href="http://www.4guysfromrolla.com/articles/120705-1.aspx">ASP.NET's Membership system</a> is the best way to manage user accounts in a website (rather than rolling your own user account store). Similarly, creating a Web Reference to communicate with a <a href="http://www.4guysfromrolla.com/articles/100803-1.aspx">web service</a> generates markup that auto-creates a <i>proxy class</i>, which handles the low-level details of invoking the web service, serializing parameters,

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• Benefits of using the same language for client and server?

  - by Makita

  I'm looking at architecture solutions for a mobile project that will have a web-service/app in addition to native apps. I've been looking at various libraries, frameworks, and stacks like jqm, backbone, parse, and meteor. Meteor, sort of an "open stack package framework", is tightly bound with node.js. There is a lot of talk about the benefits of using the same language both client and server side, and I'm not getting it. I could understand if you want to mirror the entire state of a web application on both client and server but struggling to find other wins... Workflow efficiency? I'm trying to understand why client/server language parity is considered to be a holy grail, any explicit examples or links would be greatly appreciated, thanks!

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• Game maps with "counties" that are split along lines that aren't necessarily straight

  - by pm_2

  I want to create a game environment that supports a 2D map. This is a really basic map, but must be split along lines that are not necessarily straight. So imagine a country with county boundaries. I then want to be able to detect drag / drop events within these counties. What I'm really looking for here is a pointer to where to start on this (how it has been done before - any existing libraries out there), as I'm sure that what I'm trying to do is not new - although I can't find a beginners guide for this anywhere.

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• How to connect Samsung Galaxy S3 via USB?

  - by dez93_2000

  Connecting as either MTP or PTP: neither allows one to see pictures saved as default by phone camera to DCIM folder on external SD card. Similar problems with previous models (e.g. S2) were solvable by 'usb utilities' in wireless & networking settings, but this is no longer present. Other suggestions have mentioned uninstalling various libraries... but I don't wanna just start cutting stuff without knowing it'll help. Any thoughts on how to mount a Samsung Galaxy S3 over USB?

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• Why Java as a First Language?

  - by dsimcha

  Why is Java so popular as a first language to teach beginners? To me it seems like a terrible choice: It's statically typed. Static typing isn't useful unless you care a lot about either performance or scaling to large projects. It requires tons of boilerplate to get the simplest code up and running. Try explaining "Hello, world" to someone who's never programmed before. It only handles the middle levels of abstraction well and is single-paradigm, thus leaving out a lot of important concepts. You can't program at a very low level (pointers, manual memory management) or a very high level, (metaprogramming, macros) in it. In general, Java's biggest strength (i.e. the reason people use it despite the shortcomings of the language per se) is its libraries and tool support, which is probably the least important attribute for a beginner language. In fact, while useful in the real world these may negatives from a pedagogical perspective as they can discourage learning to write code from scratch.

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• File system layout for multiple build targets

  - by Yttrill

  I am seeking some ideas for how to build and install software with some parameters. These including target OS, target platform CPU details, debugging variant, etc. Some parts of the install are shared, such as documentation and many platform independent files, others are not, such as 64 and 32 bit libraries when these are separated and not together in a multi-arch library. On big networked platforms one often has multiple computers sharing some large server space, so there is actually cause to have even Windows and Unix binaries on the same disk. My product has already fixed an install philosophy of $INSTALL_ROOT/genericname/version/ so that multiple versions can coexist. The question is: how to manage the layout of all the other stuff?

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• Steam, launching Team Fortress 2: libGL.so.1: wrong ELF class: ELFCLASS64

  - by stefanhgm

  After I got Steam running with the workaround mentioned here, I've got nearly the same problem when launching Team Fortress 2. After starting it from Steam the "Launcher" pops up and after a few seconds it disappears with the following error in the terminal: /home/user/Steam/SteamApps/steamuser/Team Fortress 2/hl2_linux: error while loading shared libraries: libGL.so.1: wrong ELF class: ELFCLASS64 Game removed: AppID 440 "Team Fortress 2", ProcID 5299 saving roaming config store to 'sharedconfig.vdf' roaming config store 2 saved successfully Because of the similarity with the workaround I used before, I tried to execute: export LD_LIBRARY_PATH=/usr/lib32:$LD_LIBRARY_PATH directly before launching the game, but there is no difference.

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