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• copy files without root permission

  - by Akhil Pm

  sir, in my college we have only little permission to use files.i need to copy some C programs from other users to my account. i cannot copy it to "tmp" directory and then copy it back to my account from there. because cp and mv commands are blocked here when copy something to tmp we cannot even have the read permission in it. can you please give a good solution for this. Please i need a solution immediately. (please send it to [email protected]) thanks akhil p m

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• Trying not to get ahead of myself but it is hard!

  - by Andrew

  Well I made a 5 year plan for myself (11years-16years) I am pretty good at Java, HTML, and PHP. I have already done some end projects: Small Java Platform Game A Small Polynomial Solver A Small Image Sharing Site A Chess Website: chesslounge.net I am currently doing some Android Development and so far I have made a program that Vibrates, Blinks the Light, or Creates a custom status message based on the user input. And a program that rotates a pyramid with a texture. My question is: Should I stick to what I am doing or Learn something a little new? I am itching to do C++, but what is your advice?

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• xcode IOS5 Creating one app from several apps

  - by Yaniza Familia

  This is my situation. I have about five different apps and they all perform well. I will like to make one app with all these little apps. How can I go about this with a master view application? Also these were created with nib file (xib) no storyboard. Can I create my files with storyboard or do I have to continue creating files with xib? Also, what to do with app delegate (UIApplicationDelegate) methods that are implemented in all applications? Please explain no knowledge on this part.

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• What 2D game engines are there available for C++?

  - by dysoco

  I just realized there are not C++ 2D Game Engines that I know of. For example, something like Pygame in Python, or Slick2D in Java. We have the following: SDL - Too low level, not a Game Engine SFML - Handles more things than SDL and it's more modern, but still not a Game Engine. I like it, but I have found it a little bit buggy with the 2.0 version. Irrlitch - It's a Game Engine, but 3D focused. Ogre3D - Same as Irrlitch Allegro - This is a Game Engine, but it's C based, I'd like a modern C++ library. Monocle Engine - This looks like what I need... but sadly there is no Documentation, no community... nothing, all I have is the Github repo. So, do you know any ? I'd like to use C++, not C#, not Java: I'm just more comfortable with C++.

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• Artist, Looking to lean how to program games, where do I start? [on hold]

  - by Christopher Hindson

  I have bean an artist for many years now I am very comfortable with using Photoshop and Flash but I want to learn how to but together my own games, I bean doing my own research into this and at the moment I am at little bit stuck on witch direction to go down. So my question is witch programming language should I learn? I have already bean looking into this what i understand is that Gamemaker with its built in language (GML) is one of the most friendly to people who are new to the game making world. I have played around with this program and was pretty happy with it but I want more also you can use Unity with language such as C and javascript and then games built with Java witch looks interesting. One more thing before you send your answer in at this moment in time I would only be able to make 2D game but 3D isn't out of the picture.

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• My rhythm game runs choppy even with high frame rate

  - by felipedrl

  I'm coding a rhythm game and the game runs smoothly with uncapped fps. But when I try to cap it around 60 the game updates in little chunks, like hiccups, as if it was skipping frames or at a very low frame rate. The reason I need to cap frame rate is because in some computers I tested, the fps varies a lot (from ~80 - ~250 fps) and those drops are noticeable and degrade response time. Since this is a rhythm game this is very important. This issue is driving me crazy. I've spent a few weeks already on it and still can't figure out the problem. I hope someone more experienced than me could shed some light on it. I'll try to put here all the hints I've tried along with two pseudo codes for game loops I tried, so I apologize if this post gets too lengthy. 1st GameLoop: const uint UPDATE_SKIP = 1000 / 60; uint nextGameTick = SDL_GetTicks(); while(isNotDone) { // only false when a QUIT event is generated! if (processEvents()) { if (SDL_GetTicks() > nextGameTick) { update(UPDATE_SKIP); render(); nextGameTick += UPDATE_SKIP; } } } 2nd Game Loop: const uint UPDATE_SKIP = 1000 / 60; while (isNotDone) { LARGE_INTEGER startTime; QueryPerformanceCounter(&startTime); // process events will return false in case of a QUIT event processed if (processEvents()) { update(frameTime); render(); } LARGE_INTEGER endTime; do { QueryPerformanceCounter(&endTime); frameTime = static_cast<uint>((endTime.QuadPart - startTime.QuadPart) * 1000.0 / frequency.QuadPart); } while (frameTime < UPDATE_SKIP); } [1] At first I thought it was a timer resolution problem. I was using SDL_GetTicks, but even when I switched to QueryPerformanceCounter, supposedly less granular, I saw no difference. [2] Then I thought it could be due to a rounding error in my position computation and since game updates are smaller in high FPS that would be less noticeable. Indeed there is an small error, but from my tests I realized that it is not enough to produce the position jumps I'm getting. Also, another intriguing factor is that if I enable vsync I'll get smooth updates @60fps regardless frame cap code. So why not rely on vsync? Because some computers can force a disable on gfx card config. [3] I started printing the maximum and minimum frame time measured in 1sec span, in the hope that every a few frames one would take a long time but still not enough to drop my fps computation. It turns out that, with frame cap code I always get frame times in the range of [16, 18]ms, and still, the game "does not moves like jagger". [4] My process' priority is set to HIGH (Windows doesn't allow me to set REALTIME for some reason). As far as I know there is only one thread running along with the game (a sound callback, which I really don't have access to it). I'm using AudiereLib. I then disabled Audiere by removing it from the project and still got the issue. Maybe there are some others threads running and one of them is taking too long to come back right in between when I measured frame times, I don't know. Is there a way to know which threads are attached to my process? [5] There are some dynamic data being created during game run. But It is a little bit hard to remove it to test. Maybe I'll have to try harder this one. Well, as I told you I really don't know what to try next. Anything, I mean, anything would be of great help. What bugs me more is why at 60fps & vsync enabled I get an smooth update and at 60fps & no vsync I don't. Is there a way to implement software vsync? I mean, query display sync info? Thanks in advance. I appreciate the ones that got this far and yet again I apologize for the long post. Best Regards from a fellow coder.

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• New Windows Phone 7 Developer Guidance released for building line of business applications

  - by Eric Nelson

  Several partners have been asking about guidance on combining Windows Phone 7 applications with Windows Azure. The patterns and practices team recently released new guidance on Windows Phone 7.  This is a continuation of the Windows Azure Guidance. It takes the survey application and makes a version for Windows Phone 7.  The guide includes the following topics: Prism for Windows Phone 7 Reactive Extensions WCF Services on top of Windows Azure Push Notifications Camera & Voice Panorama Much more... Well worth a read if you are an ISV looking at taking Line of Business applications to Windows Phone 7. Related Links: We have created Microsoft Platform Ready to help software houses develop applications for Windows Azure and On-Premise. Check it out and the goodies it can deliver for little effort.

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• Active - like-minded Java mailing lists

  - by Lewis Robbins

  I need to find an active Java mailing list, I have looked onto the GNU Java mailing list, to my surprise there had been not too much activity this month, it also focused on any GNU related Java - I'd really help me progress my Java ability, if I had an active, likeminded Java mailing list. Questions' that are not suited to Stackoverflow, or provide little benefit to any user that see's the question: discussing a new API change; best practices; open source discussion; trivia type questions on Java ArrayList boxining-unboxing; Community atmosphere. I also read Jon Skeets blog post about his previous Java/C# mailing lists examples - I did not catch any names, though I did they would be of benefit to me, if I had access to any of them.

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• Where's the source code?

  - by Kyle Burns

  I've been contacted by several people through this blog asking about the missing source code for the "Beginning Windows 8 Application Development - XAML Edition" book (the book is available at http://www.amazon.com/gp/product/1430245662/http://www.amazon.com/gp/product/1430245662/) and wanted to share this with others who may have come to this blog looking for it but may not have communicated with me.  The publisher (Apress) does know that the source code is not posted on the book's product page and will be correcting it.  Apress is located in New York City and things were slowed down a little bit last week due to the storm, but I've been assured they will be correcting the product page as soon as they can.  Thanks to everyone who has bought the book and I especially appreciate your patience.

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• Adding included columns to indexes using SMO

  - by Greg Low

  A question came up on the SQL Down Under mailing list today about how to add an included column to an index using SMO. A quick search of the documentatio didn't seem to reveal any clues but a little investigation turned up what's needed: the IndexedColumn class has an IsIncluded property. Index i = new Index (); IndexedColumn ic = new IndexedColumn (i, "somecolumn" ); ic.IsIncluded = true ; Share this post: email it! | bookmark it! | digg it! | reddit! | kick it! | live it!...(read more)

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• Level design - Are games development degrees worth it? [on hold]

  - by Tristan

  I want to go into Level design or Environment design and wondering if degrees are at all worth it for this area, as long as you have a good portfolio. I'm currently on a "Computing and Games Development" course and I feel like dropping out because I am not enjoying it. It's mostly computer based, which I'm not doing that great at, and little games Dev. But I don't know what do to... I do already have some high level education with a "Level 3 extended diploma". Thanks.

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• How do I allow all possible IPs for Gmail servers through my ufw firewall?

  - by nomadicME

  I am currently using the following rule: ufw allow out from my_local_ip to any port 587 This is a little too lax for my liking. I would like to tighten it up and restrict it to only gmail's smtp server ip addresses, but they are always changing. I used to just wait until an outgoing email didn't make it to its destination, then check syslog for the ip address that was blocked, then add that to the ufw configure script. However, now I have a need for much more reliability. Is there any way to use smtp.gmail.com in ufw? I don't think so, but thought I would ask. Any other ideas? Thanks.

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• What Is The Relationship Between Software Architect and Team Member

  - by Steve Peng

  I work for a small company which has less than 100 persons. Several months ago, this company offered me position of SA and I accepted. There are three teams in this company, and I work for one of them. This is the first time I work as a SA. During the past months, I find I don't have any power of management, I even can't let the team member do things (coding-related) in the way which is correct and more efficient. The team members argue with me on very very basic technical questions and I have to explain to them again and again. Though some members did take my advice, other members stubbornly program in their way which frequently proved wrong finally. Recently I feel a little tired and confused. I wonder what is correct relationship between a Software Architect and team members including the team leader? Besides, is software architect also leaded by the Team Leader?

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• Conscience and unconscience from an AI/Robotics POV

  - by Tim Huffam

  Just pondering the workings of the human mind - from an AI/robotics point of view (either of which I know little about)..   If conscience is when you're thinking about it (processing it in realtime)... and unconscience is when you're not thinking about it (eg it's autonomous behaviour)..  would it be fair to say then, that:   - conscience is software   - unconscience is hardware   Considering that human learning is attributed to the number of neural connections made - and repetition is the key - the more the connections, the better one understands the subject - until it becomes a 'known'.   Therefore could this be likened to forming hard connections?  Eg maybe learning would progress from an MCU to FPGA's - therefore offloading realtime process to the hardware (FPGA or some such device)? t

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• Leaked Gmail for Android Version 4.2 Features Pinch-to-Zoom and Swipe-to-Delete [Video]

  - by Jason Fitzpatrick

  If you love keeping an eye at what’s around the corner, this video showcases some of the new features in Gmail for Android–there’s even an APK for those adventurous readers who want to try it. Courtesy of AndroidPolice, we’re treated to the above video showcasing Gmail for Android’s new look and features–including pinch-to-zoom and a swipe-to-delete (or archive), similar to the notification dismissal in Android Jelly Bean. If you’re up for a little unofficial app installation, you can even hit up the link below to check out the full writeup and grab a copy of the unofficial installer. Exclusive: Upcoming Gmail For Android 4.2 Will Finally Have Pinch-To-Zoom, Swipeaway Delete/Archive [AndroidZoom] HTG Explains: What is the Windows Page File and Should You Disable It? How To Get a Better Wireless Signal and Reduce Wireless Network Interference How To Troubleshoot Internet Connection Problems

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• Temporary website redirect: 3xx or php/meta?

  - by Damien Pirsy

  Hi, I run a (small) news website which has also a forum in a subfolder of the root. I'm planning to give the site a facelift and a code restructuration, so I wanted to put some redirect on the home page that will point directly to forum's index (www.mysite.com -- www.mysite.com/forum) while I tinker with it. And that, given the little free time I have, will take no less than a couple of month. Being a news site I'm pretty sure that would affect it's overall ranking, but I need to do it, so: which is the best way to redirect? I pondered and read here and there about the different means, but I couldn't figure out which is worst for SEO. Do I use a 302 redirect or use "Location:newurl" in page headers using php? Or I just put a meta tag in the html page (or a javascript, what's better). Sorry but I'm not really into these things, I may have said something silly, I know... Thanks

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• What approaches can I take to lower the odds of introducing new bugs in a complex legacy app?

  - by m.edmondson

  Where I work I often have to develop (and bug fix) in an old system (.NET 1) whos code is complete spaghetti - with little thought given to variable names, program structure nor comments. Because of this it takes me ages to understand what bits need changed, and I often 'break' the existing software because I've made a modification. I really really want to spend a couple of months (with colleagues) going through it to refactor but existing developers both can't see the need - nor think theres time for this (the system is massive). I dread having to work on its code as it takes days to fix something only to find out I've broken something else. This obviously makes me look incompetent - so how can I deal with this?

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• Transferring local site to shared hosting

  - by Pete

  I'm looking to setup a simple online text processing tool similar to the Clang demo. The processing program itself is a C++ program which I can modify to provide the desired output I need. Since I use Linux+Perl daily and have used Apache in the past, I'd like to get this working locally first. My two questions are: Is it possible to do this with only Apache and Perl? I've looked into frameworks for doing this and quickly ran into The Paradox Of Choice. Will I be able to easily transfer a working local site to a shared hosting service? I want to administer as little as possible. My understanding is since this needs to run a C++ program that CGI is a requirement and thus I need to administer the httpd server. Hopefully this doesn't mean a VPS. Thanks

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• Unity iOS optimization and draw calls

  - by vzm

  I am curious of what methods I should approach in optimizing my Unity project for iOS hardware. I have very little image effects running (directional light with low res shadows) and I used the combine children script from the standard assets to lessen the load on the CPU. My project currently runs with 45-57 draw calls at non-intensive segments and up to 178 at intensive segments. I heard that static batching relieves some of the stress, but the game has the environment moving around the player instead of the player moving around the environment. Is there any alternative that I may look towards to improving the draw call number?

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• Cocos2d Tiled Dynamic Object Layer

  - by Rodrigo Camargo

  I'm trying to develop a cocos2d tiled based game using a sort of 'dynamic' object layer. What I want to do is after the tiled map is loaded, the user can drag something into the map and that will become an event when the 'hero' pass over it. I know how to build an object layer in tiled but it seems that is for fixed positions and what I want is a dynamic action position based on what the user can select. For instance, the user can drag a rock into a tile and when the character hit that rock he may die, or something. I'm a little lost about how to make it work. Do you have any idea of what should I use or what should I look for? Thanks in advance!

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• How do you unit test your javascript

  - by Erin

  I spend a lot of time working in javascript of late. I have not found a way that seems to work well for testing javascript. This in the past hasn't been a problem for me since most of the websites I worked on had very little javascript in them. I now have a new website that makes extensive use of jQuery I would like to build unit tests for most of the system. My problems are this. Most of the functions make changes to the DOM in some way. Most of the functions request data from the web server as well and require a session on the service to get results back. I would like to run the test from either a command line or a test running harness rather then in a browser. Any help or articles I should be reading would be helpful.

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• How do I go from a simple html5 tic tac toe game to an online 2 player game?

  - by phi1o

  I've been working on an online 2 player Tic Tac Toe solution for blackberries. both old and new. And so far I have html5 code that has a 3 x 3 layout that switches between x and o for the game mechanics. I believe I'm still missing a check for win function but my question is about the server side of this game. I'm not sure how to go about learning what exactly I want. how do you take what I have now, and make this into a functioning online game? I've been told WAMP is a good solution, as well as IIS. and its all really over my head, so i'm hoping to get a little more clarity as far as what I should focus on to bring this game to life.

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• Add ability to add tabs to the end of a line in Windows PowerShell ISE

  - by deadlydog

  Originally posted on: http://geekswithblogs.net/deadlydog/archive/2013/06/24/add-ability-to-add-tabs-to-the-end-of-a.aspxIn the preamble of an earlier post I mentioned that one of the little things that bugs me about Windows PowerShell ISE is that you can add tabs to the start of a line, but not to the end of a line.  This is likely because it would interfere with the tab-completion feature.  I still like to be able to put tabs on the end of my code lines though so that I can easily line up my comments.  Here is how we can achieve this functionality in PowerShell ISE. Read more at http://blog.danskingdom.com/add-ability-to-add-tabs-to-the-end-of-a-line-in-windows-powershell-ise/

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• Why make JavaScript class based?

  - by Carnotaurus

  JavaScript is a prototype language. To turn it into a class based language adds little value? I am not talking about best-practice here. I remember reading an article from way back, which claimed that the class-based worldview is perceivably more flawed than the one of prototypes. My summary can be found here: http://carnotaurus.tumblr.com/post/3248631891/class-based-javascript-or-not. I am resisting to use the class-based jQuery add-on and other attempts at faciliating class-based JavaScript. Peer pressure is strong but is there a stronger theoretical or practical reason why I stop resisting?

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• Is the carriage-return char considered obsolete

  - by Evan Plaice

  I wrote an open source library that parses structured data but intentionally left out carriage-return detection because I don't see the point. It adds additional complexity and overhead for little/no benefit. To my surprise, a user submitted a bug where the parser wasn't working and I discovered the cause of the issue was that the data used CR line endings as opposed to LF or CRLF. Hasn't OSX been using LF style line-endings since switching over to a unix-based platform? I know there are applications like Notepad++ where line endings can be changed to use CR explicitly but I don't see why anybody would want to. Is it safe to exclude support for the statistically insignificant percentage of users who decide (for whatever reason) to the old Mac OS style line-endings?

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