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• How do I best remove an entity from my game loop when it is dead?

  - by Iain

  Ok so I have a big list of all my entities which I loop through and update. In AS3 I can store this as an Array (dynamic length, untyped), a Vector (typed) or a linked list (not native). At the moment I'm using Array but I plan to change to Vector or linked list if it is faster. Anyway, my question, when an Entity is destroyed, how should I remove it from the list? I could null its position, splice it out or just set a flag on it to say "skip over me, I'm dead." I'm pooling my entities, so an Entity that is dead is quite likely to be alive again at some point. For each type of collection what is my best strategy, and which combination of collection type and removal method will work best?

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• What server-side language should I learn to be able to start big user-input websites (like twitter, facebook, stackexchange...)?

  - by DarkLightA

  I'm thinking ASP.NET, but I don't really know. Can someone tell me what a good server-side language for the "Zuckerberg-dorm-room-starting-up-a-huge-website" deal? I know the latter used PHP, but as I've understood it that's kind of outdated and C#/ASP.NET is a better way to go about it. Is HTML + CSS + JavaScript + C#/ASP.NET MVC + MySQL a good combination for it? Is MySQL combined in ASP.NET MVC? Also, where's a good tutorial for the server-side language you suggest? As mentioned previously it has to be able to handle massive user-input without much fuss.

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• What are good/fast methods to pull data from a database using JavaScript?

  - by Yatrix

  I'm pretty new to web technologies and I am creating a filter control that will have cascading controls. We are doing a lot of this through JavaScript and are debating the best route to take to the database. HTTPHandlers, WebServices and Ajax are all being considered (or a combination of them). We want to be able to handle a million rows in theory, so it has to be scalable to at that. We are going through JavaScript as our page must not do post-backs, if your'e wondering. I'm asking from an architectural standpoint, but will take any useful information. Links, control suggestions - anything you have, I'll happily listen to.

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• Alt + # shorcut, how to remove?

  - by Qocko

  Being a World of Warcraft player, I use keyboard combinations to cast spells and "alt + #" is one of the combination, # being the key just before the 1 2 3 4 [...], under "escape" and on top of "tab" (I have a "French(canada)" keyboard). I've searched in the keyboard options, the shorcuts parts and I found nothing, I even tried to assign it randomly, hopping it'll overwrite the real shorcut but it didn't. When I press "alt + #" I have a "alt + tab" like but just for one type of window. For exemple it'll make me navigate through many instances of folder, but it won't switch to another application. It just cycle through the open windows of one application. Help me get rid of this annoying shorcut please ! Thanks in advance.

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• Are Promises/A a good event design pattern to implement even in synchronous languages like PHP?

  - by Xeoncross

  I have always kept an eye out for event systems when writing code in scripting languages. Web applications have a history of allowing the user to add plugins and modules whenever needed. In most PHP systems you have a global/singleton event object which all interested parties tie into and wait to be alerted to changes. Event::on('event_name', $callback); Recently more patterns like the observer have been used for things like jQuery. $(el).on('event', callback); Even PHP now has built in classes for it. class Blog extends SplSubject { public function save() { $this->notify(); } } Anyway, the Promises/A proposal has caught my eye. It is designed for asynchronous systems, but I'm wondering if it is also a good design to implement now that even synchronous languages like PHP are changing. Combining Dependency Injection with Promises/A seems it might be the best combination for handling events currently.

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• How does sprite customization in 2D games work?

  - by Alouette

  I´m working on the design of a new game concept at the moment and I would like to know how to handle a customization of sprites. (In 2D that is, hence the topic.) This is my scenario: The player will have a tower containing 3 floors (or more). Each floor can be replaced by another "piece", i.e. a blue floor, a fire floor, a stone floor. With the little knowledge of game development I have, creating a sprite for each possible combination is probably not a good idea, since the size of the game file will be HUGE. So, how does developers solve this? Do you put a standard position and just replace the sprite itself? Any advice or information about this would be great. Regards.

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• how can I make the launcher disappear after notication

  - by smoser

  I have a generally stock configured Unity 2d, with the launcher in auto-hide mode. When I get a notification, the launcher pops out and the relevant icon wiggles. That is all functioning well. My problem is that the launcher pops out for maybe 5 seconds before hiding. Often times I'm typing or using the mouse on the portion of the display that is now covered by the launcher. After I've mentally received the notification is there some way to tell the launcher "I've seen this, you can go away now". Note, I'm not wanting to modify or shorten the default display time. I'd be very happy to hit 'alt-h' or some other key combination to make it go away.

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• Out of range on shut down, Log Out, Restart and Suspend

  - by user52889

  I have looked extensively on the help forums but haven't found a similar problem. Whether I want to Shut Down, Restart, Log Out or Suspend, as soon as I select my desired option the screen goes black with a message (Out of Range displayed in the middle of the screen. No combination of keys frees the screen and I have to manually hold the power button on my PC to shut it down. There is no problem on start up. My computer is a dual boot with Windows 7.

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• How to design 2D collision callback methods?

  - by Ahmed Fakhry

  In a 2D game where you have a lot of possible combination of collision between objects, such as: object A vs object B = object B vs A; object A vs object C = object C vs A; object A vs object D = object D vs A; and so on ... Do we need to create callback methods for all single type of collision? and do we need to create the same method twice? Like, say a bullet hits a wall, now I need a method to penetrate the wall for the wall, and a method to destroy the bullet for the bullet!! At the same time, a bullet can hit many objects in the game, and hence, more different callback methods!!! Is there a design pattern for that?

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• How to Use The US Windows 8 Store From Another Country

  - by Taylor Gibb

  Have you ever searched for an app only to find that its not available in your country? Luckily for us there is a work around for the Windows Store. How to use the US Windows Store from Another Country Press the Win + X keyboard combination, or right click in the bottom left hand corner of your screen to open the WinX menu, then launch the Control Panel. Now change the Control Panel’s view to the Small icons view. Then head into the Region settings. When the Region settings open you will need to switch over to the Location tab. Here you will be able to see the location that the Windows Store, as well as other applications , is using. You can change it by simply selecting United States from the drop down. That’s all there is to it. Secure Yourself by Using Two-Step Verification on These 16 Web Services How to Fix a Stuck Pixel on an LCD Monitor How to Factory Reset Your Android Phone or Tablet When It Won’t Boot

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• Restore the Ctrl + Alt + Num Pad windows positioning commands?

  - by holocronweaver

  Using Unity in Ubuntu 12.04, the Ctrl + Alt + Num Pad combination for positioning windows has been fragmented by Ctrl + Alt + 4 (move window to left half of screen) being changed to Super + Left Arrow. A similar change moved Ctrl + Alt + 6 to Super + Right Arrow. Thus one moves windows to corners using Ctrl + Alt combos, but Super combos are needed to move to the left or right. This is more than a convenience problem since the new windows positioning provided by the super key combos seems to give different sizes than the Ctrl + Alt combos they replaced, leading to distracting gaps between windows when you combine the two methods to position three or more windows on one screen. Is there a way to restore the previous behavior so that I can use Ctrl + Alt + Num Pad for all windows positioning?

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• Chessin's principles of RAS design

  - by user12608173

  In late 2001 I developed an internal talk on designing hardware for easier error injection, prevention, diagnosis, and correction. (This talk became the basis for my paper on injecting errors for fun and profit.) In that talk (but not in the paper), I articulated 10 principles of RAS design, which I list for you here: Protect everything Correct where you can Detect where you can't Where protection not feasible (e.g., ALUs), duplicate and compare Report everything; never throw away RAS information Allow non-destructive inspection (logging/scrubbing) Allow non-destructive alteration (injection) (that is, only change the bits you want changed, and leave everything else as is) Allow observation of all the bits as they are (logging) Allow alteration of any particular bit or combination of bits (injection) Document everything Of course, it isn't always feasible to follow these rules completely all the time, but I put them out there as a starting point.

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• Is a function plotter a legitimate use of eval() in JavaScript?

  - by moose

  From PHP development I know that eval is evil and I've recently read What constitutes “Proper use” of the javascript Eval feature? and Don't be eval. The only proper use of eval I've read is Ajax. I'm currently developing a visualization tool that lets users see how polynomials can interpolate functions: Example Code on GitHub I use eval for evaluation of arbitrary functions. Is this a legitimate use of eval? How could I get rid of eval? I want the user to be able to execute any function of the following forms: a x^i with a,i in R sin, cos, tan b^x with b in R any combination that you can get by adding (e.g. x^2 + x^3 + sin(x)), multiplying (e.g. sin(x)*x^2) or inserting (e.g. sin(x^2))

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• Does an inventory limit in an MMORPG make sense?

  - by Philipp

  I am currently developing a simple 2d MMORPG. My current focus is the inventory system. I am currently wondering if I should implement a limit on what a player character can carry. Either in form of a maximum weight, a limited number of inventory slots, or a combination of both. Almost every MMORPG I ever played limits inventory space. But plausibility aside, is this really necessary from a gameplay point of view? Maybe it would in fact improve the game experience when I just let the players carry as much stuff as they want. tl;dr: What is the game development rationale behind limiting carrying capacity of player characters?

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• Enjoy a Dazzling Desktop with the Brazil Theme for Windows 7

  - by Asian Angel

  Do you love a combination of nature and night-time city photography for your desktop? Then you will definitely want to download a copy of the Brazil Theme for Windows 7. The theme comes with six images featuring the colorful and unique beauty of Brazil. Download the Brazil Theme for Windows 7 [Windows 7 Personalization Gallery] How to Make Your Laptop Choose a Wired Connection Instead of Wireless HTG Explains: What Is Two-Factor Authentication and Should I Be Using It? HTG Explains: What Is Windows RT and What Does It Mean To Me?

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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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• What is the best way of testing Ubuntu?

  - by Jay

  I'm a little confused as to whether I should install Ubuntu on its own partition on my hard drive, use VirtualBox or another virtualization package to install it, or use Wubi to install it directly on top of my current OS (Win 7). I definitely want to learn and use Ubuntu, so this is not just for playing around with it. Also, if I choose to partition, should I partition the hard drive myself or should I let the Ubuntu installation menu do it for me? I understand that I am going to need a main partition, for Ubuntu's core components, and also a swap partition. Then there is the option to add a partition for "home"- I don't understand what combination of these partitioning options I should choose, or whether it is better to partition in Windows before I install Ubuntu or just partition my hard drive when I install Ubuntu itself

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• Any risks in forwarding incoming requests to my computer? [closed]

  - by pimvdb

  I just installed EasyPHP, which is basically a combination of Apache, PHP and MySQL for dummies. I'd like to make my router forward incoming requests to my computer, so that everyone on the Internet could fetch data from my computer using the Apache server. However, I was wondering if there are many risks in this. For example: Could someone get full control of my computer this way? Is my computer more exposed to secutiry risks? Could I (practically) get DDOSed? The last question might be exaggerating, but I'm just curious. Thanks.

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• Which is better? Native App or hybrid App?

  - by Prabakaran

  I want to develop a simple App for iOS, Android and windows phone. I just wondered that a simple HTML5, JS and CSS combination can work in all of these platforms. I want to know which one will be efficient? No problem with time and coding. But if i can achieve everything with HTML5-JS itself, i will chose Hybrid development. I want to know the major difference between the Native and Hybrid Development with example(I know that the main difference is HTML5-JS supports cross platform). Note : I am not making a game app.

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• Webcast: Extreme Analytics Without Limits

  - by Rob Reynolds

  Event Date: November 8, 2012 Event Time: 1 p.m. PT / 4 p.m. ET If you are a current Oracle Business Intelligence Applications customer, or thinking about implementing the BI Apps, please join us for this Webcast to learn how the combination of Oracle Exalytics In- Memory Machine and Oracle’s market leading analytic applications enables you to go beyond the traditional boundaries of data analysis and get the insight you need from massive volumes of data – all at the speed of thought. See how you can benefit from running your analytic applications on Oracle Exalytics to: Lower TCO Improve Operational Decision Making and Enhance Competitive Advantage Deliver Speed-of-thought Analysis – Anytime, Anywhere Click here to register.

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• Express5800 to Mesh with SQL Server 2012

  NEC's GX servers have been engineered to supply high performance and availability. At their core is an Intel Xeon E7 processor with the power to handle up to 2TB of memory and 160 threads. In addition, thanks to QuickPath Interconnect technology, GX servers boast as much as a 200 percent in database improvement over their predecessors. The combination of NEC servers with Microsoft SQL Server 2012 give users the necessary capabilities to truly realize the cloud's potential for their needs in a number of ways. Organizations get stable platforms built for enterprise environments that offer hig...

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• Intuitive "Take Screenshot" key mapping used by games?

  - by Hatoru Hansou

  I recently had a problem testing my game on Linux Ubuntu. The Print key is intercepted by the desktop environment and It never reaches the game. Rather than fighting this, I will simply use any other key or key combination to trigger the screen capture functionality. Now, using the PRINT key is very intuitive because people already expect this behavior. What other keys are a good idea to use to take screenshots? And if possible elaborate why, have other apps/games used that key?

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• Making Separate Assemblies For Different Types Of Tests For The Same Component?

  - by sooprise

  I was told by a few members here that splitting up my unit tests into different assemblies for different components is the best way to structure unit tests. Now, I have a few questions about that idea. What are the advantages of this? Organization, and isolation of errors? Let's say I have a component named "calculator", and I create an assembly for the unit tests on "calculator". Would I create a separate assembly for the integration tests I want to run on "calculator"? Or is the definition of an integration test a test across multiple components, like "calculator" and whatever else, which would require a separate assembly to test both of them together? In that case, would I have one assembly to do all of the integration testing for every component combination?

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• Good way to extract strings to resource

  - by Bart Friederichs

  I am using Visual Studio 2010 and we just decided to get started on localization of our code. We want to use the per-form resource file in combination with a separate resource file for static strings, called strings.resx. I was wondering if there is a good way to extra static strings (we already have quite some code we need to translate) to the strings.resx file? I have tried this plugin: Resource Refactoring 2010, but it doesn't work completely. It creates the correct new resource, but the strings aren't refactored in the code. Also, the tool seems to be abandoned by its developer. Is there a good plugin that can do this?

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• Separating Db from business with Inherited classes using multiple views

  - by catalinux

  I have a software that has a car model that will be used in different views (listing, ads, detail page, carousel, up sell widget,etc). class CarModel extends DbModel{ } I look for a "nice way" (a combination of flexible, easy to maintain,etc) to have this used in views. I'm thinking at two different ways Having object views for each context CarViewBase{ var car;// of type CarModel function constructor(args){ //will instantienta internal variable car based on args } function getThumb(){ } function getTitle(){ } } CarListingView extends CarViewBase{ function getListing(){ } } CarAdsView extends CarViewBase{ //the busines rule changes for ads widget function getThumb(){ } } Extending directly the CarModel The challenges comes when My Car Model might need an abstract factory. Let's say I have a field on my car object that states the type of the car : a truck, or a bike, or van. How would affect that my object view? Let's say that getTitle() rule would be different for each type of it. How would you do it?

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