main loop - Page 433 - Developer IT

How To Get a Better Wireless Signal and Reduce Wireless Network Interference

- by Chris Hoffman

Like all sufficiently advanced technologies, Wi-Fi can feel like magic. But Wi-Fi isn’t magic – it’s radio waves. A variety of things can interfere with these radio waves, making your wireless connection weaker and more unreliable. The main keys to improving your wireless network’s signal are positioning your router properly — taking obstructions into account — and reducing interference from other wireless networks and household appliances. Image Credit: John Taylor on Flickr How To Get a Better Wireless Signal and Reduce Wireless Network Interference How To Troubleshoot Internet Connection Problems 7 Ways To Free Up Hard Disk Space On Windows

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What are good JS libraries for game dev? (HTML5)

- by acidzombie24

If i decide to write a simple game both text and graphical (2d) what libs may i use? Assuming we are using a HTML5 compatible browser. The main things i can think of Rendering text on screen Animating sprites (using images/css) Input (capturing the arrow keys and getting relative mouse positions) Perhaps some preloading resource or dynamically loading resources and choosing order Sound (but i am unsure how important this will be to me at first). Perhaps with mixing and chaining sounds or looping forever until stop. Networking (low priority) to connect a user to another or to continuously GET data without multiple request (i know this exist but i dont know how easy it is to setup or use. But this isnt important to me. Its for the question).

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How to make my sprite jump properly?

- by Matthew Morgan

I'm currently working on a 2D platformer in XNA. I have, however been having some trouble with creating a fully functional jumping algorithm. This is what I have so far: if (keystate.IsKeyDown(Keys.W)) if (onGround = true) //"onground" is true when the collision between the main sprite and the ground is detected { spritePosition.Y = velocity.Y = -5; } So, the problem I am now having is that as soon as the jump starts the variable "onGround" = false and the sprite is brought back the ground by the simple gravity I have implemented. The other problem I have is creating a limit to the height after which the sprite should automatically return to the ground. Any advice or suggestions would be greatly appreciated.

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HP Pavilion dv7 dual boot with ubuntu and original win7 issues

- by Neasy11

I just bought a hp dv7 and I want to dual boot it with the win7 it came with and ubuntu 12.04.1. I shrunk the C partition to make room for the ubuntu one then downloaded an burnt the iso. Next I booted from the cd and followed the simple instructions until I got to the page of the install to choose the partition where all choices were greyed out and the table was completely blank and the drop down only had one choice. After researching this I found that a main problem might be that I can only have 4 primary partitions and the computer was shipped with the 4 already (system,C,recovery,hp tools). I guess my question is what is the best way to go about completing this dual boot? I have read to delete the hp tools partition or combine it with another, I just want a step by step of how to dual boot this computer, I have done plenty of computers in the past but never ran into these issues that come with an HP (should have got a dell lol)!

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How do I install the driver for my Linksys AE1200 Wireless-N USB Adapter?

- by Lewis Graham

I recently downloaded Ubuntu from the main website with the hopes of dual booting it with Windows. While the operating system works, it says that I need to install a driver for my graphics card. When I type in my password the installation fails. I figure it is because I need Internet access. I tried to install my WiFi USB adapter with the installation disc but Ubuntu doesn't seem to run the setup when I click the exe. What are my available solutions as I would really like to use Ubuntu from my programming and Windows for my gaming needs? The name as read on the box is: Linksys AE1200 Wireless- N USB Adapter The description reads as such: ID 13b1:0039 Linksys (a comma messed up format) ID 046d:0a0b Logitech, Inc. ClearChat Pro USB (headset)

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Update problems due to "installation of packages from not authenticated sources" error

- by Denis Hoss

I have some problems updating my Ubuntu Requires installation of untrusted packages The action would require the installation of packages from not authenticated sources. cinnamon gir1.2-muffin-3.0 libgnome-keyring-common libgnome-keyring0 libmuffin0 muffin-common The downloads are from the Main server, the Source code under Ubuntu Software tab is marked Is there something I have missed? The output of sudo apt-get update is: W: GPG error: http://ppa.launchpad.net oneiric Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 6A9653F936FD5529 W: GPG error: http://ppa.launchpad.net oneiric Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY A777609328949509 W: Duplicate sources.list entry http://archive.canonical.com/ubuntu/ oneiric/partner i386 Packages (/var/lib/apt/lists/archive.canonical.com_ubuntu_dists_oneiric_partner_binary-i386_Packages)

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Testing HTML5 and javascript code for iPhone and Android devices

- by Pankaj Upadhyay

I have developed a simple HTML5 webpage that uses a javascript file. This is a fun learning page so I wanted to know as to how will they show up on mobile devices like iPhone and Android smartphones. The pages are hosted on a server and i have tested the thing on my desktop. But, how can i test the same for these mobile devices. i.e. how the page will look on mobile and stuff. I don't have an iPhone or Android. There is no serious development going in here so i was thinking if there is some free website or tool that acts as a iPhone or android browser. The main aim is just to see how the webpage will show up on an android phone.

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301 re-direct all external links to new domain

- by Dean Legg

I have changed the main domain to a sub-domain & would like to re-direct all external links to the new sub domain. Have read a few articles but having no luck editing the .htaccess as it might be interfering with all the rules in there. Old: www.example.co.uk New: https://secure.example.co.uk The current rules are quite handy because it seems to have sorted out the structure for all internal links. It has even updated the file path for images (or this could just be wordpress as the url was updated under general settings). This is the current .htaccess <files wp-config.php> order allow,deny deny from all </files> # BEGIN WordPress <IfModule mod_rewrite.c> RewriteEngine On RewriteBase / RewriteRule ^index\.php$ - [L] RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !-d RewriteRule . /index.php [L] </IfModule> # END WordPress

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How to choose, set and use keywords while structuring a website?

- by mechdeveloper

I have been working on my personal website for sometime, I think I have been doing a good technical job, but, unfortunately I did a terrible job while structuring the website because I didn't care about the keywords I was going to use. Although it is my personal website, I'd like to mention the main objective is the blog of the website, so I'd like that the keywords were related to the content that it is in the blog, at present google webmaster tools is displaying a lot of keywords that has nothing to do with the content of the website, and some SEO reporting websites such as woorank says that the keyword optimization of the website is awful, So I have 3 questions: How to choose, set and use keywords while structuring a website? OPTIONAL: which are all the methods and sources used by search engines to collect the keywords of a website? there are some high profile websites that aren't optimized on this as well, should I concerned about this anyway?, is there anything more important that I should be concerned about? (if you want to see the website please check my profile)

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How should I model an economy-based game in code?

- by Matthew G.

I'd like to create an economy game based on an ancient civilization. I'm not sure how to design it. If I were working on a smaller game, like a copy of "Space Invaders," I'd have no problem structuring it like this: Main Control Class Graphics Class Player Class Enemy class I don't understand how I'd do this for larger projects like my economy game. Do I create a country class that contains a bunch of towns? Do the towns contain a lot building class, most contain classes of people? Do I make a path finding class that the player can access to get around?

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Non-trivial functions that operate on any monad

- by Strilanc

I'm looking for examples of interesting methods that take an arbitrary monad and do something useful with it. Monads are extremely general, so methods that operate on monads are widely applicable. On the other hand, methods I know of that can apply to any monad tend to be... really, really trivial. Barely worth extracting into a function. Here's a really boring example: joinTwice. It just flattens an m m m t into an m t: join n = n >>= id joinTwice n = (join . join) n main = print (joinTwice [[[1],[2, 3]], [[4]]]) -- prints [1,2,3,4] The only non-trivial method for monads that I know of is bindFold (see my answer below). Are there more?

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Open World Day 4

- by Antony Reynolds

A Day in the Life of an OpenWorld Attendee Part V Last day at OpenWorld. The exhibits are closed, and the final few presentations are being given. I spent much of the day meeting with customers to talk about SOA/OSB and Coherence. Main event of the day was the farewell party which was loud and surprisingly well attended. I was able to have lunch with Dave Felcey, Coherence PM, who has a great blog and is always ready to share his expertise with people. So that was OpenWOrld for another year. I met a friend of a friend who attends OpenWorld every year and attends the Demo Grounds with a list of questions to ask people. I think that illustrates the point that everyone approaches OpenWorld in a different way and looks to get different things from it. For me OpenWorld is a great experience to feel the energy in Oracle and network with customers and partners. Hope to see you there next year!

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Animations / OpenGL (ES 2) in game menu

- by user16547

(I am specifically asking for Android) If you look at Angry Birds (and in fact many other games), you can already see a lot of animations & effects going in the main menu and in other places even before starting to play. I assume they are done with OpenGL, more precisely a FrameLayout is used and inside it a GLSurfaceView is somewhere at the bottom of the hierarchy; above the GLSurfaceView you have regular Android buttons and texts. Is this how it's done*? Also would you reuse the same GLSurfaceView when running the actual game or should another one be created? *I am aware an alternative approach would be to make absolutely everything in OpenGL. Of these two I prefer the FrameLayout one, but I don't know whether other developers agree.

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What are the ways to get included in Google Alerts mails

- by stacker

There is a news website / blog - I'll call it the Site from now on. The site mention a keyword in one of its articles. I add a Google Alerts for the keyword, but I do not get any alert for the word from The Site. Furthermore, searching the keyword in the news section don't getting any results from The Site. The Site has a sitemap, that indexed by Google every x minutes. And in the main search, searching for a news title bring the item on the top. What are the best ways to get included in Google Alerts mails?

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Is it a bad practice to include all the enums in one file and use it in multiple classes?

- by Bugster

I'm an aspiring game developer, I work on occasional indie games, and for a while I've been doing something which seemed like a bad practice at first, but I really want to get an answer from some experienced programmers here. Let's say I have a file called enumList.h where I declare all the enums I want to use in my game: // enumList.h enum materials_t { WOOD, STONE, ETC }; enum entity_t { PLAYER, MONSTER }; enum map_t { 2D, 3D }; // and so on. // Tile.h #include "enumList.h" #include <vector> class tile { // stuff }; The main idea is that I declare all enums in the game in 1 file, and then import that file when I need to use a certain enum from it, rather than declaring it in the file where I need to use it. I do this because it makes things clean, I can access every enum in 1 place rather than having pages openned solely for accessing one enum. Is this a bad practice and can it affect performance in any way?

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In Joomla how to change the module mod_news_show_gk3?

- by Emerson

How can I change the mod_news_show_gk3 module to: Change the size of the post image. It uses the first image of the post, but it seems to not be resizing the image. Add an extra field: It is important to show in the main page what is the source of the post. I would then like to add an extra field during post editing time, namely "source", and then I would like to show the source below the title and before the text. Change the title size. Title is oversized and I couldn't find any way to decrease its size. Add a border around the section. Here is the address: http://central.antinovaordemmundial.com/ Thanks!

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License for library developed with commercial program

- by Overv

I'm developing a commercial application that largely depends on the functionality of a library that will be developed with it. I'd like to open-source this library, because it offers functionality that is not found elsewhere and can be useful in other applications. However, I will also use it in my own commercial application. I don't want to publish the source of the main application, but it is definitely not a derived work (think of calculator app using GPL licensed library to calculate sine). And if someone else commercially uses the library, I want to require them to publish any changes made. Is the GPL license suitable for this or is LGPL perhaps what I need?

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OpenJDK 6 B27 Available

- by user9158633

On October 26, 2012 the source bundle for OpenJDK 6 b27 was published at http://download.java.net/openjdk/jdk6/. The main changes in b27 are the latest round of security updates and a number of other fixes. For more information see the detailed list of all the changes in OpenJDK 6 B27. Test Results: All the jdk regression tests run with make test passed on linux_i586 cd jdk6 make make test Note: sun/tools/jinfo/Basic.sh test failed on linux_x64. For the current list of excluded tests see jdk6/jdk/test/ProblemList.txt file: ProblemList.html in B27 | Latest ProblemList.txt (in the tip revision). Special thanks to Kelly O'Hair for his contributions to the project and Dave Katleman for his Release Engineering work.

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C# XNA Make rendered screen a texture2d

- by redcodefinal

I am working on a cool little city generator which makes cities in the isometric perspective. However, a problem arose where if the grid size was over a certain limit it would have awful lag. I found the main problem to be in the draw method. So I took the precautionary step of rendering only items that were onscreen. This fixed the lag but, not by much. The idea I have is to render the frame once and take a snapshot. Then, display that as a texture2d on screen. This way I don't have to render 1,000,000 objects every frame since they don't change anyways. TL;DR - I want to Take a snapshot of an already rendered frame Turn it into a Texture2D Render that to the screen instead of all the objects. Any help appreciated.

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How can be data oriented programming applied for GUI system?

- by Miro

I've just learned basics of Data oriented programming design, but I'm not very familiar with that yet. I've also read Pitfalls of Object Oriented Programming GCAP 09. It seems that data oriented programming is much better idea for games, than OOP. I'm just creating my own GUI system and it's completely OOP. I'm thinking if is data oriented programming design applicable for structured things like GUI. The main problem I see is that every type widget has different data, so I can hardly group them into arrays. Also every type of widget renders differently so I still need to call virtual functions.

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Which forum applications can integrate with Facebook? [closed]

- by deathlock

EDIT: I don't think this is a duplicate... I ask for a specific feature, which is Facebook integration. I know this question existed, but I need something more specific than that. That one doesn't outline what I need. What is the best/most compatible forum software which features almost complete integration with Facebook? The main feature I ask is the Facebook Connect feature (user could use Facebook account to register). But it would be more perfect if other Facebook features could be integrated to. Something like, subscribe thread which appears to Facebook notifications, easy sharing to Facebook, etc. I have vBulletin, Invision Power Board, and SMF in my mind, but I'm open to more suggestions..

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Looking for the better way to combine deep architecture refactoring with feature based development

- by voroninp

Problem statement: Given: TFS as Source Control Heavy desktop client application with tons of legacy code with bad or almost absent architecture design. Clients constantly requiring new features with sound quality, fast delivery and constantly complaining on user unfriendly UI. Problem: Application undoubtedly requires deep refactoring. This process inevitably makes application unstable and dedicated stabilization phase is needed. We've tried: Refactoring in master with periodical merges from master (MB) to feature branch (FB). (my mistake) Result: Many unstable branches. What we are advised: Create additional branch for refactoring (RB) periodically synchronizing it with MB via merge from MB to RB. After RB is stabilized we substitute master with RB and create new branch for further refactoring. This is the plan. But here I expect the real hell of merging MB to RB after merging any FB to MB. The main advantage: Stable master most of the time. Are there any better alternatives to the procees?

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How to setup Ubuntu as a backup server for my Windows computer?

- by derek

I took my old computer (AMD 5600+, 2GB RAM, 880gt, 250GB SATA, etc) and decided to jump and try Ubuntu for the first time. I have very very little knowledge (Red Hat when I was younger) with Linux in general. My main desktop is Windows 7 and my plan is to use the Ubuntu computer as a file server sort of speak. I want to be able to setup back up schedules from my Windows PC to the Ubuntu PC (plan on leaving this on 24/7 to double as a Seedbox) How do I go on to doing this?

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Trouble Updating to Version 13.10 (from Version 13.04)

- by user206783

By trying to update to Version 13.10 (German) from Version 13.04 i'd received the following Problem-Message: W:Fehlschlag beim Holen von "http: //de.archive.ubuntu.com/ubuntu/dists/natty-backports/main/source/Sources 404 Not Found" W:Fehlschlag beim Holen von "http: //de.archive.ubuntu.com/ubuntu/dists/natty-backports/restricted/source/Sources 404 Not Found" W:Fehlschlag beim Holen von "http: //de.archive.ubuntu.com/ubuntu/dists/natty-backports/universe/source/Sources 404 Not Found" W:Fehlschlag beim Holen von "http: //de.archive.ubuntu.com/ubuntu/dists/natty-backports/multiverse/source/Sources 404 Not Found" E:Einige Indexdateien konnten nicht heruntergeladen werden. Sie wurden ignoriert oder alte an ihrer Stelle benutzt. Update rolls back Anyone got an solution?

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