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• How do I add Different Screens to my C#/XNA Game?

  - by Ramses Brown

  I'm working on a Pong clone in XNA. Gameplay-wise, I have it where I want it to be. I want to add a title screen and some other screens to it like a menu, as well as a screen for the Winning/Losing results. I've tried the Game State Management Example on the App Hub site, but It's very complicated and I haven't been able to make sense of it. Is there a simpler way? I'm hoping for a solution that can be used in other projects too. Plus I'd like to know how to actually create menu items (basically, how do I display the different options on it, and highlight them, etc).

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• Better way for calculating project euler's 2nd problem Fibonacci sequence)

  - by firephil

  object Problem_2 extends App { def fibLoop():Long = { var x = 1L var y = 2L var sum = 0L var swap = 0L while(x < 4000000) { if(x % 2 ==0) sum +=x swap = x x = y y = swap + x } sum } def fib:Int = { lazy val fs: Stream[Int] = 0 #:: 1 #:: fs.zip(fs.tail).map(p => p._1 + p._2) fs.view.takeWhile(_ <= 4000000).filter(_ % 2 == 0).sum } val t1 = System.nanoTime() val res = fibLoop val t2 = (System.nanoTime() - t1 )/1000 println(s"The result is: $res time taken $t2 ms ") } Is there a better functional way for calculating the fibonaci sequence and taking the sum of the the even values below 4million ? (projecteuler.net - problem 2) The imperative method is 1000x faster ?

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• Finding a publisher for Windows Phone Marketplace - I'm from an unsupported country

  - by Axarydax

  Hello,I'd like to develop apps for Windows Phone 7,but I can't register at AppHub,because my country (Slovakia) is not supported. A guy from Microsoft said that I need to find someone under whom I'd publish those apps. Where would I find somebody who'd be willing to register there and basically act as my publisher? I'm risking that he'd take my app earnings and disappear if it's not an honest person. What would the "publisher" risk by signing his name under my apps? Or are any of you willing to do it?

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• Access Denied

  Surely, now that PowerPivot has led the way, it is time for Microsoft to offer a new RAD package for database application development; namely an Excel-based front end for SQL Server Express. In that way, we'll have a powerful and familiar front end, to a scalable database, and a clear upgrade path when an app takes off and needs to go enterprise....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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• Suggest windows webhost provider for following requirements.

  - by op_amp

  Hi, We have a asp.net MVC3 based web app which uses SQL SERVER 2008 for database. Also, we have a client side desktop application which also uses SQL SERVER 2008. While developing the system, we are able to Sync tables using SQL SERVER Replication feature. Now, we want to host our site on a webserver but we are clueless about it. If anyone of you have a similar system working then please suggest a cheap but reliable webhost which supports Replication. Initially there will be approximately 10 or less clients who will perform replication 2 or 3 times a day. The size of the database will be less than 4GB for sure.

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• O'Reilly Deal of the day - 10/June/2012 - Introducing HTML5 Game Development

  - by TATWORTH

  Today's deal of the day from O'Reilly at http://shop.oreilly.com/product/0636920022633.do?code=DEAL is Introducing HTML5 Game Development"Making video games is hard work that requires technical skills, a lot of planning, and—most critically—a commitment to completing the project. With this hands-on guide, you’ll learn step-by-step how to create a real 2D game from start to finish. In the process, you’ll use Impact, the JavaScript game framework that works with HTML5’s Canvas element. Not only will you pick up important tips about game design, you’ll also learn how to publish Impact games to the Web, desktop, and mobile—including a method to package your game as a native iOS app. Packed with screen shots and sample code, this book is ideal for game developers of all levels."

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• inserting or updating values into null textboxes [closed]

  - by tanya

  this is my sql table structure create table cottonpurchase ( slipNo int null, purchasedate datetime, farmercode int , farmername varchar (100), villagename varchar (100), basicprice int null, premium int null, totalamountpaid int null, weight int null, totalamountbasic int null, totalamountpremium int null, Yeildestimates int null ) I want to fill in the null values in my sql with actual values and not leave them null but I want to do that from my winforms app form! But if I do that it just adds a new record when what I want is for it to update the record which has, for example, farmercode = 2, farmername = blaah, and so on. I also want to enter this in the same records as in farmercode = 2 and the corresponding corresponding basic price = ... , everytime i do it it ends up making a new record and not in the existing one.

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• How to achieve excellence in iOS Development? [on hold]

  - by Ashish Pisey

  I have been developing iOS apps for six months now and every day i find something new and exciting to learn. i feel blessed with apple docs and 3rd party APIs.I have four apps on the App Store.i have tried almost all the basic core features of iOS except core-data. MY recent interests are dynamic UI,physics(sprite kit) and social apps.As i feel lost in vast pool of knowledge,i would like to know from you expert iOS developers, what particular features should i concentrate on for the future? should i try opengl-es for 3d gaming for 64 bit processors or stick to basic 2d physics gaming for some time or the evergreen social apps category ? appreciate your help, thanx

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• Effective methods for managing work tasks? (documenting/remembering/prioritizing)

  - by Kaleb Brasee

  I'm looking for suggestions on effective methods that I can use to document, remember and prioritize tasks at work. Many of the these tasks belong to a primary project, but they also exist for independent initiatives. The tasks themselves cover everything from development to documentation to discussions, with varying priorities, and deadlines ranging from right away to a few months from now. Historically I have used a notepad to keep track of these tasks, with a star next to an item indicating it needs to be done and a check mark when it's completed. However, as I gain more responsibilities and more things to manage: it becomes harder to make sure I've done everything (because some things get lost 5 pages back) it becomes harder to remember what's most important to do next it becomes harder to keep track of dependencies between tasks Has anyone found methods that have made their tasks easier to manage? I've considered adding some meta-data to keep track of what's most important and dependencies, or possibly switching to an app that could automate this (if such a thing exists). Something that's accessible anywhere would definitely be a plus.

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• Is there a virtual printer to output an Open Office doc to multiple images (jpg, png etc)?

  - by fred.bear

  I'm after a virtual printer which takes each page of "printed" output and converts into multiple images (one image for each page)... eg. .jpg, or .png, etc.. I'm specifically looking for something to work with Open-Office Writer, but I assume that such a virtual printer would work across the board for any app which can send its output to a "printer". Is there such a thing in the Ubuntu repository? PS. I want one "normal" picture image per page.. ie Many images are output. ...(like the Snagit virtual printer in Windows)

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• Where can I get a list or data base of light reflectance values for different materials?

  - by mikidelux

  I'm implementing lighting for a WebGL app but I'm not an artist so I don't know how to generate or where to obtain a list of materials with its values (diffuse, specular, ambient and shininess). I've been searching a lot but with no luck. Is there any list or DB I might have overlooked? Any common repository or something similar? Thanks in advance. Note: English is not my main language, let me know if you don't understand something and I'll try to rephrase it.

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• How to Enable SideLoading in a SharePoint Site

  - by Damon Armstrong

  I was trying to deploy a SharePoint App for the first time and ran into an error about SideLoading not being enabled on the site. The solution is fairly simple – you just have enable the Developer feature on the site.  Unfortunately, it’s a hidden feature so you have to do it through PowerShell.  While searching the internet for the command to enable the feature I kept running into really long scripts that seemed overly complicated.  Fortunately, Jeff (a friend at work) sent me this snippet that is very concise and does the job: Enable-SPFeature e374875e-06b6-11e0-b0fa-57f5dfd72085 –url http://yoursharepointbox/site/ Obviously, you will need to update the URL to match your environment!

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• Touching a CGRect

  - by Coder404

  In my cocos2d app I am trying to determine when a CCSprite is touched Here is what I have: -(BOOL)ccTouchBegan:(UITouch *)touch withEvent:(UIEvent *)event{ NSMutableArray *targetsToDelete = [[NSMutableArray alloc] init]; for (CCSprite *target in _targets) { CGRect targetRect = CGRectMake(target.position.x - (target.contentSize.width/2), target.position.y - (target.contentSize.height/2), 27, 40); CGPoint touchLocation = [self convertTouchToNodeSpace:touch]; if (CGRectContainsPoint(targetRect, touchLocation)) { NSLog(@"Moo cheese!"); } } return YES; } For some reason it does not work. Can someone help me?

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• Ubuntu crash problem, need fix

  - by Brad

  Upgraded to 12.04 LTS Beta 2, on a Dimension E310. The unity Sidebar crashes while I use Software Center. The only way I can close Software center Is to either power off my computer or use force quit app on the unity side bar. Thats why I believe it's the sidebar crashing instead of the software center. But the other problem is, apport don't recognize the bug so nothing is sent. How do I file this bug? I looked in VAR/Crash and there was no crash report.

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• A question on choosing the next programming language between C/C++ and other languages

  - by SidCool

  I am a java developer (web app and standalone applications) who knows JavaScript, HTML, CSS and has mostly worked on Web applications. I have no knowledge of C/C++ or any other lower level languages. I feel like I should strengthen my CS basics by learning a fundamental language. Should it be C or C++? I am also inclined to learn Objective-C. Does it need basics of C or C++? Or should I go for new languages like Python, Google's Go etc. I know this is a cliche question asked very frequently, but I can use some help here.

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• Get the Windows 7 Start Menu Back in Windows 8 with Classic Shell

  - by deadlydog

  I just thought I’d give readers a heads up that you can use Classic Shell to get the old Windows 7 style of start menu back instead of using the new crappy Windows 8 metro start screen; plus it’s free and open source .  You can still access the metro start screen with Shift+WindowsKey or Shift clicking the start menu button.  This program also defaults to showing the desktop on startup instead of the metro start screen (but that can be disabled), and is super configurable and has tons of options to tweak it just the way you want if you are picky like me   The only thing I would say is when installing the app, only install the Classic Start Menu; you don’t need the other ones. You’re welcome, and happy coding!

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• how to download and install from the internet >> skype and realplayer

  - by ADAM

  i had corrupted win7 by dead blue screen and stopped rebooting or installing or safe mode. just death i installed linux unubtu one i still unable to install my wireless stick modem for surfing internet wirelessly form my provider vividwireless i don't know where or how to download porg and app from the net like real player and skype and others and to intall them. even i cannot find them after download. can i revive and reboot or fix my dead win7 os from linux. i can connect internet from wireless network in the neighborhood linksys!! what is linksys anyway? how to use linux ubuntu same way like windows? ie. insalling, using cd rom for installation and downloading and cleaning history and cache and system restore? please email me to: [email protected] any help..step by step many thanks

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• Online job application

  - by Fred

  I am trying to add an application to my site where I can post job openings with my company and allow people to apply online. Can someone recommend a service or app already in existence for this purpose? I tried googling it, but could not find a set of search terms that did not return endless sites for job seekers. This is a (very) small business and I do not expect to have more than a few openings at any time, but what I am actually interested in is having a repository of interested job seekers to have on file. Then when people ask me about openings, I could just refer them to the page and they could apply. Then, if we have an opening, we could look through the list of candidates and if we can't fill the position(s) from that list, we could post the job and advertise to fill the position.

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• Communication between Box2D and libGDX Stage (Scene2D) running in separate threads

  - by atok

  I'm making a physics based 2D game using libGDX and Box2D. I want to move the execution of the simulation out of render thread. I use immutable messages and the BlockingQueue to pass the information about player actions. The Box2D applies forces and runs a frame of simulation. In the next step I would like to sync back the changes and update Scene2D Actors accordingly. Making an immutable copy of the state of the game world and sending it back using Gdx.app.postRunnable() is one option but it seems inefficient. Is there any other option?

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• Architecting persistence (and other internal systems). Interfaces, composition, pure inheritance or centralization?

  - by Vandell

  Suppose that you need to implement persistence, I think that you're generally limited to four options (correct me if I'm wrong, please) Each persistant class: Should implement an interface (IPersistent) Contains a 'persist-me' object that is a specialized object (or class) that's made only to be used the class that contains it. Inherit from Persistent (a base class) Or you can create a gigantic class (or package) called Database and make your persistence logic there. What are the advantages and problems that can come from each of one? In a small (5kloc) and algorithmically (or organisationally) simple app what is probably the best option?

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• Credit Card Payment Processing which APIs do you use?

  - by user3330840

  It's for a Point of Sale Terminal where the customer will bring the physical credit card and it will be swiped through the terminal. The business has a merchant account on some banks. So, how do I start accepting credit cards in my app? The credit cards that needs to be accepted include: visa, master-card, amex, discover. Which APIs do I need to use? The programming language doesn't matter it can be in any programming languages Java/C#/C++/Python or anything. Will there be a single API or multiple APIs that need to be integrated? (I know some about PCI compliance and security encryption)

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• On a dual monitor setup, how can I set which lone monitor the ALT-TAB interface appears?

  - by conner_bw

  On a dual monitor setup, how can I set which monitor the ALT-TAB (or ALT+`) interfaces appear? Right now, it's flying all over the place, possibly based on on which app is focused? I'm not sure. In any case this is not useful to me. I spend 80% of my time staring at the monitor in front of me, and sometimes I turn my head to the left to look at logs, or whatever. When I press ALT-TAB or ALT+`, I want the interface to appear, 100% of the time, on the monitor in front of me. Geforce GT 430, NVIDIA binary drivers, Ubuntu 12.04 LTS. Help?

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• Mouse cursor is MASSIVE inside of firefox and chromium

  - by user171396

  While installing ubuntu i accidently hit the high contrast option. I could not figure out how to diable it within the install, so i let it complete. I booted up into ubuntu 13.04 and HC was still on. I disabled it in Universal Access, and now am noticing my mouse curose is huge in web browsers. This is very much a stock install. Is there a setting to disable the HUGE mouse? I mean the thing is 4 times the size of text etc on normal pages. and its only in broswsers from what ive seen so far. EDIT Looks like its in everthing with text.. terminal, app store, folders and files... /sigh.

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• Apps Foundry Contest : 36h pour créer une application mobile, les gagnants présenteront leur création devant 600 décideurs IT

  Apps Foundry Contest : 36h pour créer une application mobile Les gagnants présenteront leur création devant 600 décideurs IT Le développement mobile prend de l'ampleur. Mais malgré la montée en puissance d'Android et la progression continue de l'App Store et des autres galeries d'applications, les « best practices » dans la conception et le développement mobile sont encore peu établies. C'est en tout cas l'avis des co-organisateurs de l'Apps Foundry Contest, un challenge qui se tiendra au mois de juin et qui proposera de créer une application mobile, sur la plateforme de son choix, en 36 heures chrono. Ces organisateurs savent a priori de quoi ils parlent. Le concours est p...

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• Writing a spell checker similar to "did you mean"

  - by user888734

  I'm hoping to write a spellchecker for search queries in a web application - not unlike Google's "Did you mean?" The algorithm will be loosely based on this: http://catalog.ldc.upenn.edu/LDC2006T13 In short, it generates correction candidates and scores them on how often they appear (along with adjacent words in the search query) in an enormous dataset of known n-grams - Google Web 1T - which contains well over 1 billion 5-grams. I'm not using the Web 1T dataset, but building my n-gram sets from my own documents - about 200k docs, and I'm estimating tens or hundreds of millions of n-grams will be generated. This kind of process is pushing the limits of my understanding of basic computing performance - can I simply load my n-grams into memory in a hashtable or dictionary when the app starts? Is the only limiting factor the amount of memory on the machine? Or am I barking up the wrong tree? Perhaps putting all my n-grams in a graph database with some sort of tree query optimisation? Could that ever be fast enough?

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