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• Dynamic Components

  - by Alex

  I am attempting to design a component-based architecture that allows Components to be dynamically enabled and disabled, much like the system employed by Unity3D. For example, all Components are implicitly enabled by default; however, if one desires to halt execution of code for a particular Component, one can disable it. Naively, I want to have a boolean flag in Component (which is an abstract class), and somehow serialize all method calls into strings, so that some sort of ComponentManager can check if a given Component is enabled/disabled before processing a method call on it. However, this is a pretty bad solution. I feel like I should employ some variation of the state paradigm, but I have yet to make progress. Any help would be greatly appreciated,

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• Can I (reasonably) refuse to sign an NDA for pro bono work? [closed]

  - by kojiro

  A friend of mine (let's call him Joe) is working on a promising project, and has asked me for help. As a matter of friendship I agreed (orally) not to discuss the details, but now he has a potential investor who wants me to sign a non-disclosure agreement (NDA). Since thus far all my work has been pro bono I told Joe I am not comfortable putting myself under documented legal obligation without some kind of compensation for the risk. (It needn't be strictly financial. I would accept a small ownership stake or possibly even just guaranteed credits in the code and documentation.) Is my request reasonable, or am I just introducing unnecessary complexity?

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• Will C++ remain viable for game engines in somewhat distant future?

  - by samual

  C++11 has opened ways, which were only dreamt by the C++ programmers. It has been three years since I have been learning C++, and I am going well. Now I want to get into vedio games. Every core of the game code I saw, was monstourously writtern in C++. My question is - If I get into serious game engine dev, and perfecting it would take, maybe say 10 years, would we still be writing game engines in C++ ?(newer standard) Or, will John Carmack, write id tech 7 in c++? note - I am strictly talking about game engines.

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• PHP 5.5 sort en Alpha1 et introduit les générateurs, le block Finally ainsi qu'une API de hachage des mots de passe

  PHP 5.5 sort en Alpha 1 et introduit les générateurs, le block Finally ainsi qu'une API de hachage des mots de passe Le cycle de publication de PHP 5.5.0 vient officiellement de débuter. Les développeurs de la plateforme Web ont publié la première version Alpha de PHP 5.5.0. PHP 5.5.0 apporte des nouvelles fonctionnalités majeures au langage, dont le support des générateurs. Les générateurs sont un moyen simple et puissant de créer des itérateurs. L'introduction des générateurs dans PHP va permettre aux développeurs d'implémenter des itérateurs sans avoir à écrire beaucoup de code décoratif. Le support des générateurs s'accompagne de l'introduction du nouveau mot c...

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• Win7 installation on VirtualBox

  - by Will

  I have Ubuntu 12.04 installed on my machine. I also installed Virtualbox so that I can run windows 7. I set my virtual box with 4 GB RAM and 25 GB virtual HDD and after I press Start, it doesnt boot from the windows dvd in the optical drive, but instead i get this error: Failed to open a session for the virtual machine win7. VT-x features locked or unavailable in MSR. (VERR_VMX_MSR_LOCKED_OR_DISABLED). Result Code: NS_ERROR_FAILURE (0x80004005) Component: Console Interface: IConsole {1968b7d3-e3bf-4ceb-99e0-cb7c913317bb} Do you have any idea what is it and how I could overcome this? Thank you!

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• How does N create it's tileset?

  - by Darestium

  I am trying to recreate a Multiplayer version of the popular flash game N in java. I have a single question however. Are the tiles for the games draw or are they defined with mathamatical formulars/In code? Since I do see how they would scale up in flash if they were not. So if anyone has any ideas how I should go about creating the tileset, or how they are created in the game please let me know. You can check out the game here.

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• What's the best way to sell ReSharper to management? [closed]

  - by Jackson Pope

  Possible Duplicate: How do you convince your boss to buy useful tools like Resharper, LinqPad? I've recently started a new job developing code in C# and ASP.Net. At a previous employer I've used ReSharper from JetBrains and I loved it. I've downloaded the free trial in my new job, as have several of my new colleagues on my recommendation. Everyone thinks it's great. But now our trials are coming to an end and it's time to buy or say goodbye. I've been reliably informed that getting money for tools from senior management is like trying to get blood from a stone, so how can I convince them to loosen their grip on the purse strings and buy it for our team (of seven developers)? Does anyone have any experience of convincing management of the benefits of refactoring tools? I feel the benefit every second I use it, but I'm having difficulty thinking of how to explain the concrete benefits to a manager who only think

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• Domain held at one registry, need to redirect to subdomain on my own hosting provider

  - by Glinkot

  Hi, There are lots of questions around this general area, but I haven't seen one that exactly mirrors what I'd like to know. It's per the title really. My understanding (and what I'm told by my host) is the easiest thing is just to get the transfer key and bring the DNS across to my own hosting provider. Also I'm told by my host this doesn't affect the client's ownership of the domain itself. Basically, I have a subdomain setup with the site (this has the same IP address as the top level domain). So presumably just giving the other registrar that IP address will only refer it only to the TLD rather than the subdomain. What's the easiest way to achieve this? It's an asp.net site, I don't have a hosted directory on the client's account where I can code a redirect. Thanks all Mark

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• What's the reason exceptions are heavily used in managed (C# and Java) languages but not in C++? [on hold]

  - by ZijingWu

  AFAIK, a lot of C++ projects don't allow exceptions and deny them in coding guidelines. I have a lot of reasons, for example, exception is hard to handle correctly if your binary needs to be compiled by separate and different compilers. But it doesn't fully convince me, there is a lot of projects which are just using one compiler. Compared to C++, exceptions are heavily used in C# and Java and the reason can only be that exception are not bringing enough benefit. One point is debugbility in practice. Exception can not get the call stack in C++ code, but in C# and Java you can get the call stack from exception, it is significant and makes debugging easier. No-callstack is not the fault of the exception, it is the language difference, but it impacts the exception usage. So what's the reason that exceptions are frowned upon in c++ programs?

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• Should I drawing directly on CCLayer or CCSprite?

  - by einverne

  Now I am a little confused in my cocos2d-x cpp project. I want to draw lines with user's finger touch. Following the screenshot of a CCScene: In the screen, there are two squares. I want show an animation in the first square and let the second one draw lines with user touch. Now these two squares are CCSprite. And I can draw dots in the second one on the CCLayer. But I am little confused that I should draw lines on the Sprite or on the Layer. Or are there other ways to organize the code?

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• java 2d game how to make a player jump

  - by user2957632

  Hi I'm making a 2d plat former running game kind of like jetpack joyride fro example were u are constantly running but there is obstacles and u need to jump over them. but I want the character to jump and come back down. here is some of my code. if (listen.ml == true) { if (y > 120) { jump = true; y -= 1; } } if (y == 121 && jump == true) { jump = false; y += 1; }

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• Is there an apt command to download a deb file to the current directory?

  - by Lekensteyn

  I am often interested in the installation triggers (postinst, postrm) or certain parts (/usr/share or /etc) of packages. Currently, I am running the next command to retrieve the source code: apt-get source [package-name] The downside is, this file is often much bigger than the binary package and does not reflect the installation tree. Right now, I am downloading the packages through http://packages.ubuntu.com/: Search for [package-name] Select the package Click on amd64/i386 for download Download the actual file This takes too long for me and as someone who really likes the shell, I would like to do something like the next (imaginary) command: apt-get get-deb-file [package-name] I could not find something like this in the apt-get manual page. The most close I found was the --download-only switch, but this puts the package in /var/cache/apt/archives (which requires root permissions) and not in the current directory.

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• ASP.NET RedirectPermanent Method using C# and VB.NET

  301 redirection is essential for the best user experience. If something on your website has been changed or moved to a new permanent location, users will need to be permanently redirected. In addition, search engines can follow this type of redirection, and this redirected-to page will now be the one to rank in Google or other search engines, replacing the old page. There are different ways to implement the RedirectPermanent method. This tutorial will illustrate these common techniques with sample VB.NET or C# code. Creating the Sample ASP.NET 4.0 Website RedirectPermanent is new in ASP.NET 4....

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• Introduce unit testing when codebase is already available

  - by McMannus

  I've been working on a project in Flex for three years now without unit testing. The simple reason for that is the fact that I just didn't realize the importance of unit testing when being at the beginning of studies at university. Now my attitude towards testing changed completely and therefore I want to introduce it to the existing project (about 25000LOC). In order to do it, there are two approaches to choose from: 1) Discard the existing codebase and start from scratch with TDD 2) Write the tests and try to make them pass by changing the existing code Well, I would appreciate not having to write everything from scratch but I think by doing this, the design would be much better. What would you advise me to do? Thanks for replies in advance! Jan

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• Embeding a generic google search with autocomplete - not a custom site search

  - by picxelplay

  Most people's home page is google.com. My homepage is just a custom html page hosted on my computer. I do this because I am a web developer, and I have several projects that I work on a one time, so I like to have quick links to all of them. On that page I usually just have a Link to google.com for when I want to search. But below all of my quick links, I want to add a google search box (with Autocompletions). I first used a simple iframe to embed google.com into the page, but then my search results were confined to that iframe. I wanted to search for something, then my results would open in a new tab. I then came across this code snippet but it doesn't have Autocompletions: http://www.refactory.org/s/google_search/view/2 How can I add Autocompletions to this? Or is there a better way of doing it? Thanks in advance for any advice

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• Unit testing multiple conditions in an IF statement

  - by bwalk2895

  I have a chunk of code that looks something like this: function bool PassesBusinessRules() { bool meetsBusinessRules = false; if (PassesBusinessRule1 && PassesBusinessRule2 && PassesBusinessRule3) { meetsBusinessRules= true; } return meetsBusinessRules; } I believe there should be four unit tests for this particular function. Three to test each of the conditions in the if statement and ensure it returns false. And another test that makes sure the function returns true. Question: Should there actually be ten unit tests instead? Nine that checks each of the possible failure paths. IE: False False False False False True False True False And so on for each possible combination. I think that is overkill, but some of the other members on my team do not. The way I look at it is if BusinessRule1 fails then it should always return false, it doesn't matter if it was checked first or last.

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• in ubuntu 11.10 IDE like dreamweaver for PHP with design mode

  - by pkachhia

  I know that this question is already asked here, but I did not find any free IDE like dreamweaver which have facility to view design mode with PHP+HTML code. I am previously worked on windows machine and used dreamweave, now I moved to ubuntu 11.10 and I need IDE like dreamweaver. Currently I have used Geany and Eclipse but none of them has facility of design mode. Is there any add-on available for Geany or Eclipse then please give it link to me. I am new to ubuntu so, did not have much knowledge of it and because of it I am here for answer. Thanks in advance. Pkachhia

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• What exercises counter the back pain of sitting at a computer for 15 hours a day? [on hold]

  - by Sam

  I work up to 15 hours a day (not everyday :)) programming. When I do this I get a very sore lower back. I don't want to spend $1000 on a special chair like Joel Spolsky says. I'm sure I'm not alone here. Has anybody encountered this and found an exercise/other method to combat it? Maybe somebody with more physical education than me about opposing muscle groups or something. PS (not working fifteen hours a day isn't an answer, it's how I work best) and it's not off topic as programming is about more than code - it's a verb.

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• Cursor-Killing: Accessing Data in the Next Row

  Cursors are considered by many to be the bane of good T-SQL. What are the best ways to avoid iterative T-SQL and to write queries that look and perform beautifully? This first part in an ongoing series of cursor-killing handles inter-row analysis. 24% of devs don’t use database source control – make sure you aren’t one of themVersion control is standard for application code, but databases haven’t caught up. So what steps can you take to put your SQL databases under version control? Why should you start doing it? Read more to find out…

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• Dynamic quicklist: how to reference to .desktop file? (installed in /opt)

  - by Nick Lemaire

  I'm trying to create a dynamic quicklist for an application I'm developing in quickly. This is the line of code I use to try and connect to the .desktop file: self.launcher = Unity.LauncherEntry.get_for_desktop_id("my-app.desktop") For testing purposes, I've found that when using quickly run I should copy the .desktop file to ~/.local/share/applications. When I do this, the quicklist shows up correctly. However, when packaging my app using quickly package --extras, and installing this package, I get a launcher without quicklist. Does this have something to do with my app being installed in /opt? Meaning my desktop file is located somewhere else? Should I use another reference to the desktop file?

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• Black screen with blinking cursor after dual boot install 14.04

  - by chillstream

  I have just installed Ubuntu 14.04 on my toshiba laptop along side Windows 7. When the menu comes up to choose which OS to boot into, I can easily boot into Windows 7. I cannot successfully boot into Ubuntu. All I get is a blinking cursor on a black/purple screen. I attempted the nomodeset trick, which was a bit more successful. I got a screen with a lot of code, but then it stopped with a blinking cursor at the bottom and wouldn't load anymore. As a last resort, would returning my laptop to factory settings get rid of linux and the partitions made to the drive? I already did this to my laptop when it was just windows, which is why I thought I might as well try to add Ubuntu. But it's a lengthy process, and if it won't get rid of the partitions and ubuntu, I won't bother. I appreciate any help ~many thanks

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• Fresh install of 12.04 Kernel panic

  - by user70260

  I am attempting to install Ubuntu 12.04 on my computer. After the Ubuntu splash screen, the computer throws up this error: sr 2:0:1:0: [sr0] Unhandled error code Kernel panic - not syncing: Attempted to kill init! PID: 1, comm: run-init Not Tainted 3.2.0-23-generic #36-Ubuntu The computer hardware is as follows: Core 2 quad 9400, 8gb RAM, GTX 275, 3 Mech HD, 2 SSD, Win 7 install. I would like to dual boot Ubuntu on this computer if possible. I did try placing this disk in my laptop and booted successfully which leads me to believe the fault lies with the desktop. Under windows all hardware seems to work ok. Any ideas?

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• Should I Learn C/C++ Even If I Just Want To Do Web Programming?

  - by Daniel

  My goal is to be able to create online apps and dynamic, database driven websites. For instance, if in the future I get the idea for the next Digg or Facebook, I want to be able to code it myself. To arrive there I think I have basically two paths: Path 1 Start at a basic level, learning C, then C++ for OOP, then algorithms and data structures, with the goal of getting a solid grasp of computer programming. Only then move to PHP/MySQL/HTTP and start working on practical programming projects. Path 2 Start directly with PHP/MySQL/HTTP and getting my hands dirty with practical projects right away. What would you guys recommend?

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• Maintenance Wizard

  - by LuciaC

  The Maintenance Wizard is an E-Business Suite upgrade tool that can guide you through the code line upgrade process from 11.5.10.2 to 12.1.3 with an 11gR2 database. Additionally, it includes maintenance features for most releases of E-Business Suite applications. The Tool: Presents step-by-step upgrade and maintenance processes Enables validation of each step, tracks the completion of the steps, and maintains a log and status Is a multi-user tool that enables the System Administrator to give different users assignments based on any combination of category, product family or task Automatically installs many required patches Provides project management utilities to record the time taken for each task, completion status and project reporting For More Information:Review Doc ID 215527.1 for additional information on the Maintenance Wizard.See Doc ID 430732.1 to download the new Patch.

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• How is Pash licensed?

  - by Jay Bazuzi

  Pash is an open source reimplementation of Windows PowerShell. It was released in 2008, and has been idle since then. I would like to take up the mantle. It's not clear what the license is. There is no LICENSE file or license details in the code. The only reference to a license I can find is on this page: http://sourceforge.net/projects/pash/ where it says: "License: BSD License, GNU General Public License (GPL)" But I'm not sure if I can take that as authoritative. I have tried to contact the author but he has not responded. I would hate to proceed with this project and later discover that I am violating a license, and have the project crippled as a result.

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