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• What are the benefits of designing a KeyBinding relay?

  - by Adam Naylor

  The input system of Quake3 is handled using a Keybinding relay, whereby each keypress is matched against a 'binding' which is then passed to the CLI along with a time stamp of when the keypress (or release) occurred. I just wanted to get an idea from developers what they considered to be the key benefits of designing your input system around this approach? One thing i don't particularly like is the appending of the timestamp to the bound command. This seems like a bit of a hack to bend the CLI into handling the games input? Also I feel that detecting the keypress only to add the command to a stream of text that gets parsed at a later date to be a slightly latent way of responding to input? (or is this unfounded?) The only real benefit i can see is that it allows you to bind 'complex' commands to keypresses; like 'switch weapon;+fire;' for example. Or maybe for journaling purposes? Thanks for any insights!

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• Humerous Word 2010 "feature"?

  - by Michael Stephenson

  Im just sitting on the train to work and had a funny experience with word 2010 that I thought id share. Im writing a document and all of a sudden like usually happens the train gets a little bit bumpy.  Word decides it doesnt like this (maybe it prefers to fly?).  Anyway to show its dissatisfaction with the journey it starts adding new rows to my table in the document all by itself. 5 pages of rows later I still cant workout how to stop itso have to kill word. Thank you autosave

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• When should a method of a class return the same instance after modifying itself?

  - by modiX

  I have a class that has three methods A(), B() and C(). Those methods modify the own instance. While the methods have to return an instance when the instance is a separate copy (just as Clone()), I got a free choice to return void or the same instance (return this;) when modifying the same instance in the method and not returning any other value. When deciding for returning the same modified instance, I can do neat method chains like obj.A().B().C();. Would this be the only reason for doing so? Is it even okay to modify the own instance and return it, too? Or should it only return a copy and leave the original object as before? Because when returning the same modified instance the user would maybe admit the returned value is a copy, otherwise it would not be returned? If it's okay, what's the best way to clarify such things on the method?

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• How to test the render speed of my solution in a web browser?

  - by Cuartico

  Ok, I need to test the speed of my solution in a web browser, but I have some problems, there are 2 versions of the web solution, the original one that is on server A and the "fixed" version that is on server B. I have VS2010 Ultimate, so I can make a web and load test on solution B, but I can't load the A solution on my IDE. I was trying to use fiddle2 and jmeter, but they only gave me the times of the request and response of the browsers with the server, I also want the time it takes to the browser to render the whole page. Maybe I'm misusing some of this tools... I don't know if this could be usefull but: Solution A is on VB 6.0 Solution B is on VB.Net Thanks in advance!

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• How do I clear xmodmap settings?

  - by Wayne Werner

  Exactly what the title asks. How do I clear xmodmap settings? I have an IBM model M, and somehow xkeycaps got it into its head that my "End" key was not any key at all. xev reports keypresses when I use it, so I know the event is being generated by the keyboard. Also, xkeycaps thinks that my arrow keys are all wonky, and apparently the scrollbar is broken so it only scrolls down - so I can't scroll up to find an IBM keyboard that just maybe is close to my map so I can fix my keys. So I'm trying to reset my keyboard to the default settings, but the xmodmap manpage is woefully devoid of "reset all" or "clear all" or anything of that nature (that I was able to find). Help would be greatly appreciated!

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• How do I teach bash in Ubuntu some curse words?

  - by NitinAb

  When bash encounters an unknown command(word?) it does this : The program 'hello' can be found in the following packages: * hello * hello-debhelper Try: sudo apt-get install <selected package> what I would like to know is how this is done so I can edit it or add something before it to cross check the unknown word from a home grown dictionary which would have phrase:reply pairs that can then be sent to output. I am guilty of not looking enough for it around .. but the few bash guides I tried digging up didn't have anything on this. Maybe I am looking at the wrong places .. any pointers? And yes I am doing this so every time I type wtf when a program fails , I want something nice thrown back at me...

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• How to make a ball fall faster on a ramp? Unity3D/C#

  - by Timothy Williams

  So, I'm making a ball game. Where you pick up the ball, drop it on a ramp, and it flies off in to blocks. The only problem right now is it falls at a normal speed, then lightly falls off, not nearly fast enough to get over the wall and hit the blocks. Is there any way to make the ball go faster down the ramp? Maybe even make it go faster depending on what height you dropped it from (e.g. if you hold it way above the ramp, and drop it, it will drop faster than if you dropped it right above the ramp.) Thanks.

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• Synchronization between game logic thread and rendering thread

  - by user782220

  How does one separate game logic and rendering? I know there seem to already be questions on here asking exactly that but the answers are not satisfactory to me. From what I understand so far the point of separating them into different threads is so that game logic can start running for the next tick immediately instead of waiting for the next vsync where rendering finally returns from the swapbuffer call its been blocking on. But specifically what data structures are used to prevent race conditions between the game logic thread and the rendering thread. Presumably the rendering thread needs access to various variables to figure out what to draw, but game logic could be updating these same variables. Is there a de facto standard technique for handling this problem. Maybe like copy the data needed by the rendering thread after every execution of the game logic. Whatever the solution is will the overhead of synchronization or whatever be less than just running everything single threaded?

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• Storing lots of large strings with frequent "appends" and few reads

  - by Thiago Moraes

  In my current project, I need to store a very long ASCII string to each instance of a given object. This string will receive an 2 appends per minute and will not be retrieved so frequently. The worst case scenario is a 5-10MB string. I'll have thousands of instances of my object and I'm worried that storing all those strings in the filesystem would not be optimal, but I can't think of a better solution. Can anyone suggest an alternative? Maybe a key-value store? In this case, which one? Any other thoughts?

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• How to credit other authors in an open source project

  - by erik

  I have a pet project that I am planning to release as open source at some point in the not-too-distant future. A couple of the files use or are mostly code that was taken from a project released under the New BSD License. While I have changed it to fit my needs and added some small stuff, the algorithm and the functionality is basically exactly the same. I want to make sure that the author of the code gets credit and that the license is not broken, but I also want to make the reader aware that this is not the code as it was orignally released. How should I approach this? Should I isolate the code as much as possible and just retain the original license? Maybe put all the files that contain foreign code in their own folder and add a readme explaining what has been added/removed? There must have been tons of projects using other open source code. What is the standard approach to this?

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• Is there any reason to use "container" classes?

  - by Michael

  I realize the term "container" is misleading in this context - if anyone can think of a better term please edit it in. In legacy code I occasionally see classes that are nothing but wrappers for data. something like: class Bottle { int height; int diameter; Cap capType; getters/setters, maybe a constructor } My understanding of OO is that classes are structures for data and the methods of operating on that data. This seems to preclude objects of this type. To me they are nothing more than structs and kind of defeat the purpose of OO. I don't think it's necessarily evil, though it may be a code smell. Is there a case where such objects would be necessary? If this is used often, does it make the design suspect?

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• What's the future of online gamedev. FLASH or UNITY?

  - by Cpucpu

  Currently, i develop for flash, not much ago i discovered unity, not yet played with it, but i have seen so far was cool. Here are my thoughts: Flash is more casual, start with cost less, in time and money. In unity you'd likely have to go more bussines-serious (real money). There are proven bussines models in flash, like adver-gaming, ads, micro-transactions. Have not seen much movement in this in Unity, too soon maybe. Flash is too heavy. By its nature(making games) Unity is way faster. Flash is 2d, doing something 3d with it turns weird and slow. Unity is natively 3d, not optimized for 2d though, it is likely feasible as well. I am overlooking the plug-in widespread, that gap will get closed over the time.

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• How to change tooltip background color in Unity?

  - by kayahr

  In a lot of applications the tooltips are just plain ugly (White text on black background, way too much contrast) or even unreadable (black or dark blue text (Hyperlinks) on black background). I want to change the background color of the tooltips to some medium gray or even some yellow or something like that, maybe even something semi-transparent. Here is a screenshot of Eclipse which displays some source code in a tool tip with black text on black background: Switching to a different theme (Something other than Ambiance or Radiance) helps but I like Ambiance and I want to keep it. It's just this darn tooltip color which is absolutely unacceptable. I found several solutions for older Ubuntu versions but they no longer work with Unity in Ubuntu 11.10 because I can't find any function to customize the Ambiance or Radiance theme. So how do I do that in the current Ubuntu version?

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• Why does Google Search Engine reject my title tag's change?

  - by Michal P.

  I made a simple webpage http://pundaquitboat.michaelspages.com/ giving it the the title tag "Boat – Pundaquit" and I have submitted it to Google bot by Google Webmaster Tools. Then I decided to change the title to "Anawangin trip" of the same page and I submited my webpage again in the same way to Google bot. The result was that the new title of my webpage coexisted with the old title of the same webpage in SERPs for maybe 2 days. After that the new title was rejected and if I enter site:pundaquitboat.michaelspages.com/ I can see that Google has my old copy of my webpage with old title in its database. This problem doesn't occur in Bing when I can enjoy high position of "Anawangin trip" phrase. (In Bing I haven't submitted the old version of title.)

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• Should my colleagues review each others code from source control system?

  - by Daniel Excinsky

  Hi everybody. So that's my story: one of my colleagues uses to review all the code, hosted to revision system. I'm not speaking about adequate review of changes in parts that he belongs to. He watches the code file to file, line to line. Every new file and every modified. I feel just like being spied on! My guess is that if code was already hosted to control system, you should trust it as workable at least. My question is, maybe I'm just too paranoiac and practice of reviewing each others code is good? P.S: We're team of only three developers, and I fear that if there will be more of us, colleague just won't have time to review all the the code we'll write.

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• Sound driver for motherboard gigabyte ga-g1975x-c (Creative Sound Blaster Live 24-bit) (alsa, ca0106)

  - by Mikl

  My motherboard is gigabyte ga-g1975x-c with integrated audio "Creative Sound Blaster Live 24-bit". I have installed Ubuntu 10.10, and there was no sound at all. Alsa drivers was already installed. Finally after long searching, i have found how to make my sound work. /etc/modprobe.d/alsa-base.conf: options snd-ca0106 subsystem=0x10121102 //i have added this line and restart After restarting my speakers and microfon works fine. Maybe somebody knows different/better subsystem code for my sound card???

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• ADSI, SQL, Exchange Server 2010

  - by WernerCD

  Maybe I'm barking up the wrong tree... We have a Domain Controller "DC1". We have Exchange Server 2010 "Postman". Say I have an Address Book: And I add a few contacts to it: How then do I get the data from that contact via ADSI? Say I want the Job Title or CustomerID field that I filled out in the Contacts list? SELECT * FROM OPENQUERY(ADSI, 'SELECT EXTENSIONATTRIBUTE15 ,DISPLAYNAME ,GIVENNAME ,NAME ,SN ,SAMACCOUNTNAME FROM ''LDAP://DC=ATLANTICGENERAL,DC=ORG'' WHERE USERACCOUNTCONTROL=512 AND SAMACCOUNTTYPE=805306368 AND OBJECTCLASS=''PERSON'' AND OBJECTCLASS=''USER'' ORDER BY SAMACCOUNTTYPE ') How can I tie the Contact Card to an Active Directory User, so that I can edit either the AD account information OR the Exchange information and have them synced up?

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• Are there any guidelines for laying out screen "real estate?"

  - by Corey

  I'm wondering if there is any information about creating a decent page layout so that your website will appeal to users of all resolutions. For example, the optimal width for pages. It seems like on my resolution, most websites have their content centered and covers about 80% of the page, which is easy on the eyes. Or maybe the height of the website's logo/header -- some sites I stumble upon have a huge logo with links or navigation under it, making it so that I need to scroll down to see the actual content, like articles or images (these sites don't keep me for very long). I understand that every user is different and may have browser extensions, page zoom or may be running some ancient system that displays in 640x480. I'm not looking for a "best" solution, but rather, some guidelines about designing to accommodate different resolutions. Basically, how can I make sure that I don't design a page where a paragraph might display in several easy-to-read lines on my resolution, but it turns into a single line on a 1920x1080 resolution and makes it hard for the user to follow?

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• Naming boolean field that is a verb

  - by dnhang

  In Java, by convention getter and setter for boolean fields will be isField() and setField(). This works perfectly fine with field names that are adjectives like active, visible, closed, etc. But how do I name a field that has meaning of a verb, like haveChildren? Add _ing to the verb (havingChildren), maybe? Edit: to clarify, I don't have control of the method names (getter and setter), they are auto-generated by the IDE. So what I need is an appropriate field name so that when the IDE generate a getter for it, it make senses. For example, hasChildren is a perfect field name, but when the IDE generate the getter for the field it would be isHasChildren. How do I solve this?

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• Is your Xcode4 stable?

  - by Eonil

  I have upgraded to Xcode4, and I'm experiencing unbelievable situation. Xcode4 crashes per 5 minute. Incredibly slow. Almost impossible to use. Maybe the problem is my hardware configuration. I'm using MacBook Air 3rd with 2GB ram with SSD. It was just fine with Xcode3, but now, it consumes all of memory and crashes too often. Does your Xcode4 stable? If so, please let me know what's your hardware configuration. I want to know whether this problem is caused by hardware configuration or not to decide buy a new mac.

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• convert image to spritesheet of tiles for isometric map?

  - by Paul

  is there a way to convert an isometric image (like the first image) to a spritesheet (like the second image), in order to place each image on the isometric map with the code? The map looks like the first image, but some buildings are bigger than just one tile, so I need several squares (let's say the first image is a building, made of multiple tiles with different colors), and each square is placed with an offset of 64x32. The building is created in Blender and I save the image with the isometric perspective. But I have to split each square from this image in order to have the spritesheet, maybe there is smarter way, or a java software that would make the conversion for me?

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• virtualbox host | Ubuntu vs XP

  - by iambriansreed

  In order to lengthen the lifespan of my machine I am replacing the weakest link, the hard drive and installing a new OS. I had planned on using xp pro as my virtualbox host and ubuntu as guest. After messing with ubuntu desktop and server I am really impressed and am thinking of reversing the virtualbox setup; ubuntu host xp guest. I would use XP for Adobe Fireworks, Netflix, and iTunes (maybe) that's pretty much it. Any reason not to do ubuntu host with xp guest? I know the xp vbox will run slower as a guest but really how much slower? It's a desktop. 4gb ram, 500gb disk, Pent D 3.2 ghz

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• Ubuntu 12.04.3 alongside Windows 8.1

  - by user208329

  I brought a new Notebook which has pre-installed Windows 8.1 with an uefi* (-Bios) and secure boot*. (* can switch or turn so off, still no success) When i try to install Ubuntu 12.04.3, the installer doesn't recognize Windows 8.1. There were options, to delete the whole disk or do something else. The second option, shows a few partitions (NTFS) but no Windows. The Ubuntu 13.10 version even did start on my notebook, it gets frozen during start up. (I thought. maybe the newer one will recognize Windows.) I'm not very confident in manipulating grub, I hope there is an easy way or an easy description. Gparted shows: Device Type Size Used /dev/sda freespace 1MB /dev/sda ntfs 1073MB 408MB /dev/sda2 efi 104MB 52MB /dev/sda3 ntfs 134MB 45MB /dev/sda4 ntfs 988465MB 23947MB /dev/sda5 ntfs 10424MB 9483MB free space 0MB /dev/sdb1 fat32 16929MB 9412MB (USB-drive Ubuntu-image)

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• "Unable to create OpenGL 3.3 context (flags 0, profile 1)"

  - by Tsvetan

  Trying to run any of the well-known McKesson's tutorials on a friend's laptop results in the aforementioned exception. I read that in order to run applications which use OpenGL 3.3 you must at least have an ATI HD or Nvidia 8xxx GPU series. He has an ATI HD class graphics processor which eliminates (maybe) this issue. Also, I read that this error may result in having old drivers. He updated his drivers but that didn't solve the problem. The tutorials are built as said in the book introduction and glsdk is installed. If more information is needed, say so and I will provide it. What are the other reasons for this kind of exception? And how can I fix them?

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• How to share an USB device(scanner) over network (from Win to Ubuntu)?

  - by B. Roland

  Hi! I have a special thing: I want to share my scanner over the network. The scanner is connected to a Win7 machine, but I want to use it from Ubuntu 10.04... I found some methods: USB over Network - it can handle Linux Windows; and Windows Windows it has Windows (and Win CE) & Linux server, but it has only Windows client, their Linux client is coming soon - that's a drag :( - it is not free, but what uses Windows, what is free? USBip - to Linux Linux, it is free, and nice I'm looking for the other way, what can handle Win Linux thing... I prefer free things, but that thing is maybe not free...

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