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• Should I use events in this case?

  - by joon

  I'm creating a video player, like a custom YouTube player. All of the GUI elements (progress bar, video player, play button, ...) are different classes, but I obviously need them to communicate. When the progress bar is clicked, or the slider is moved, it needs to send a "seek(x)" command to the video player. Similarly, the video player needs to update the progressbar every frame. Currently I'm doing this by having almost all elements have a link to each other. So when I create the progress bar, I'm telling it where the video player is. But after a while this becomes more and more complicated, and I'm wondering if events would be a better way to do this. Or a main controller class that has all the connections. What should I do?

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• Get/Post Controller Logic Best Practice

  - by Brian Mains

  In an ASP.NET MVC project (Razor), I have a Get request, which loads two properties on a model, dependent on the property passed into the action method. So if the parameter has a value, the Group property is supplied data. But if not, the Groups collection property is supplied data. In the post action method, when I process the data, to repopulate the view, I have to provide similar logic, and could getaway with returning Action(param) (the get response) to the caller. My question is, based on experience, is that a good practice to get into? I see some downsides to doing that, but adds the lack of code redundancy. Or is there a better alternative?

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• Is it a good idea to always use Google as the first step to solving a problem? [closed]

  - by The Rubber Duck

  Possible Duplicate: Importance of learning to google efficiently for a programmer? Avoiding lengthy discussions, as a senior level student in CS, how can I get away from Googling problems I run into? I find myself using it too much; I seemingly reach for the instant answer and then blindly copy and paste code, hoping it works. Anyone can do that. I've read the related threads about being a better programmer, but mostly those recommend practicing on pet projects, which I have done, but again I feel EVERY wall encountered, from design through completion, was hurdled with Google. Do professionals instantly "research" their problem? Or do you guys step back and try and figure it out yourselves? I'm talking about both 'algorithm/design' problems as well as compiler issues.

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• Distro that I can load to ram?

  - by NullUserException

  Is there a modified version of Ubuntu that I can choose to load to RAM on start up? Kinda like the LiveCD, but that can be easily modified (ie: I can install stuff) when I choose to boot from disk. The idea is to install it to a USB drive. I know there's something similar but slax is lacking in many departments. A "full" version Ubuntu would be better. A LiveUSB installation seems to be pretty close to what I want, but apparently I have to choose whether or not it will be persistent by the time I install it. I want to be able to choose that every time I boot.

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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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• General usage question of vbo

  - by CSharpie

  Firstofall, I am sorry if my question is to broad. I am developing a tile based game and switched from those gl.Begin calls to using VBOs. This is kind of working allready, I managed to render a hexagonal polygon with a simple shader applied. What I am not sure is, how to implement the "whole" tile concept. Concrete the questions are: - Is it better to create 1 VBO for a single tile and render it n-Times in every different position, or render one huge VBO that represents the whole "world" - Depending on the answer above, what is the best way to draw a "linegrid". Overlay with the same vbo using the respecting polygon.mode , or is there a way to let the shader to this? - How would frustum-culling or mousepicking work then, do i need to keep the VBO-data in memory?

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• When do I bite the bullet and hire a developer? [closed]

  - by Paul Seattle

  I have an awesome URL, I've had it since the mid 90's, and up until around 2002 I was having an awesome time writing music reviews and features into static pages and adding their URL to static index pages and everything was just great. Then things got complicated really fast, and for one reason or another I handed the site over to a very talented friend who turned it into a db based site run by cf. Now, here I am around twelve years later putting it all back together using mysql, php and css on a need-to-learn basis and even though I'm sooo close to where I want it to be I realize, erm, it should have been written using mysqli etc etc ad infinitum. So I'm wondering at what point do I just give in and hire a developer to take over, how much does it even cost, and how do I know I'm working with someone who is better than I am?

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• What sort of things can cause a whole system to appear to hang for 100s-1000s of milliseconds?

  - by Ogapo

  I am working on a Windows game and while rendering, some computers will experience intermittent pauses ("hitches" for lack of a better term). When profiled they appear in seemingly random places in the code. Eventually I noticed that it wasn't just my process that was affected, but (seemingly) every process on the system. All of the threads in my application hitch at once. The CPU utilization drops during these hitches and it appears as if most processes make no progress. This leads me to believe this may be an Operating System or Driver issue, but it only occurs while playing the game (and only on some systems). What sort of operations might the operating system be doing that would require the kernel to pause all user threads and block. Some kind of I/O? At first I thought of paging but my impression is that would only affect a single process, no? Some systems in use: Windows, DirectX (3d), nVidia cards (unknown if replicates on ATI), using overlapped io for streaming

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• processing gamestate with a window of commands across time?

  - by rook2pawn

  I have clients sending client updates at a 100ms intervals. i pool the command inputs and create a client command frame. the commands come into the server in these windows and i tag them across time as they come in. when i do a server tick i intend to process this list of commands i.e. [ {command:'duck',timestamp:350,player:'a'}, {command:'shoot',timestamp:395,player:'b'}, {command:'move', timestamp:410,player:'c'} {command:'cover',timestamp:420,player:'a'} ] how would i efficiently update the gamestate based on this list? the two solutions i see are 1) simulate time via direct equation to figure out how far everyone would move or change as if the real gameupdate was ticking on the worldtick..but then unforseen events that would normally trigger during real update would not get triggered such as powerups or collissions 2) prepare to run the worldupdate multiple times and figure out which commands get sent to which worldupdate. this seems better but a little more costly is there a canonical way to do this?

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• Which are the options available for PHP IDEs for windows

  - by dbz_a

  Hi, I am new to PHP (Have good j2EE and ASP .net experience) and now want to kick start developing a simple website (A database connection and simple inserts is the max technical stuff i plan right now). I have signed up at zymic for a free hosting (MySql included). Now please suggest me: the available IDEs for developing on PHP on windows OS and any beginner level resources that you have come across, for a .net/java guy which may help me to quickly figure out the differences would you advice me to go for frameworks like joomla etc as a beginner? or is it better i start exploring these after im familiar with PHP? Thanks in advance, Abhi

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• Using T[1] instead of T for functions overloaded for T(&)[N]

  - by Abyx

  The asio::buffer function has (void*, size_t) and (PodType(&)[N]) overloads. I didn't want to write ugly C-style (&x, sizeof(x)) code, so I wrote this: SomePacket packet[1]; // SomePacket is POD read(socket, asio::buffer(packet)); foo = packet->foo; But that packet-> looks kinda weird - the packet is an array after all. (And packet[0]. doesn't look better.) Now, I think if it was a good idea to write such code. Maybe I should stick to unsafe C-style code with void* and sizeof? Upd: here is another example, for writing a packet: SomePacket packet[1]; // SomePacket is POD packet->id = SomePacket::ID; packet->foo = foo; write(socket, asio::buffer(packet));

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• Is there a way to determine if a database has been altered, then to push new data to the Application

  - by TeamGB

  All our (my company) currently applications pull information from that database, is their a way to get the following types of databses to either push data or push an event to allow the application to pull data. Access SQL Oracle File systems (Files and folders) The issue today is that most of our application spend a large amount of time constantly looking at databases and file system checking to see if data has changed . It would be better for the database to inform the application when data has changed. Are there tools within Visual studio to allow this or are there tools within the database / filesystem to do this? All ready asked this on stack overflow but go no answer. I've been doing some more research but I cant seem to get any further. My manager has asked to investigate it as it would mean our applications are much quicker and efficient.

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• What are the parameters that let businesses choose .NET or Java over other languages/frameworks? [on hold]

  - by Othman

  Some of the biggest enterprise applications such as HR software, Sales and ERP, are written in .NET or Java. Also, Governments online solutions such as paying parking fines, and universities courses registration systems are all in .NET or Java. On the other hand, Facebook, Google and Wikipedia, are not using .NET or Java so much (Google uses at least both Java and Python). Twitter also was using Ruby for a long time, as well as Python. These websites work on much more data and at larger scales in terms of users and performance than any enterprise applications, yet still these companies have chosen a different path. What are the parameters driving such decisions? Note This question is not about why do you prefer x over y! or why those people are using this. The question is primarily asking about the parameters that makes Java Or .NET becomes better suite in enterprise applications based on Performance, Reliability, Scalability etc.

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• Why support IE6?

  - by TATWORTH

  The question has been raised as to why support IE6? I can give you two reasons, why your client will require IE6 to be supported: While IE6 continues to have above a certain of browsers in use The web application is for a controlled environment that has not been upgraded from IE6 to a later version I personally only use any current or previous version of IE to: To access the Windows Update site As required to test IE compatibility of applications that I write I agree that that the CSS fixes required to support IE6 are undesirable in that they require non-standards compliant CSS. I prefer that my HTML be both XHTML and CSS standards complaint according to the W3C tests. IE9 promises to be not only standards compliant but much better in performance. I am looking forward to its release.

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• What are the challenges and benefits of writing games with a functional language?

  - by McMuttons

  While I know that functional languages aren't the most commonly used for game writing, there are a lot of benefits associate with them that seem like they would be interesting in any programming context. Especially the ease of parallelization I would think could be very useful as focus is moving toward more and more processors. Also, with F# as a new member of the .NET family, it can be used directly with XNA, for example, which lowers the threshold quite a bit, as opposed to going with LISP, Haskell, Erlang, etc. If anyone has experience writing games with functional code, what has turned out to be the positives and negatives? What was it suited for, what not? Edit: Finding it hard to decide that there's a single good answer for this, so it's probably better suited as a community wiki post.

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• Bad sound quality and headphones not working

  - by wifi

  Using Ubuntu 10.10, on a HP Pavilion t3019.es, which has a Realtek ALC880 soundcard. It has 6 rear jack outputs, plus digital audio input and output, plus 3 front jacks (mic, headphones and a blue one which i don't know what's for). The sound on my computer is very low, and when i raise the volume up to 50%, it starts sounding distorted, crackling. Also, the headphones don't work when i plug them (it just keeps on playing through the speakers). I tried to comment the "/etc/modprobe.d/alsa-base.conf" file according to the soundcard and jacks in my computer, but none of the lines added worked (naturally, didn't added them at once). I found out that adding "options snd-hda-intel model=generic" to it made the sound better, but it's not as good as in Windows yet. Any ideas? Other than setting the PCM value, didn't work for me. Thanks.

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• Fast language for problem solving? [closed]

  - by Friend of Kim

  I learned PHP to make websites. After some years I've started using programming for solving what is difficult tasks for my level. Now I want to make a program that solves equations. (I want to write it myself, not use an API. Because I'm doing this for the sake of the challenge, not for the result..) Because of this, I'm going to learn a new and faster/better language. It's going to be C++, Java, Python or C#. What are the benefits of each language, and which language is best for speed compared to speed of writing and readability? Using C would be lightning fast, but the lack of OO is making for more complex code and reduces the readability, for example..

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• How to remove a page from site without affecting google serp

  - by Savas Zorlu

  I have a travel website. Just for information purposes, I had put a weather page. Now I realize that this page is increasing my overall bounce rate; because people who are looking for the weather forecast are landing on that page and getting what they want and exiting. What is the safest method to get rid of that page? Would it hurt my google rank if I remove it completely? Or is there a better way to handle this situation? I realize that around 21 percent of my daily hits are on that page. I would have been happy if my aim was to provide weather data for the location; however, my site needs to focus on selling hotels. So I think I need to get rid of this weather page immediately. What do you think?

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• Programers first day at work [closed]

  - by peraueb8921

  Next week I am getting my first job as a programmer in a well known company. I have worked in other companies before, but mostly in IT department. As you can understand, I am very determined to succeed in there. I have found some related articles in the Web, but I am not even sure they are written from developers. So I am asking you, to tell us about what will you do in another way if you could "reverse" the time, and what can I do to succeed. Of course "work hard" is one of them but what about book/article reading, certifications, good practises to make good impression to my team leader or whatever else you think would help? I know that it maybe fit better at wordplace.stackexchange.com, but this is a programmer oriented post and can only be answered by experienced programmers. Thank you.

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• Removing "www." from domain name and SEO

  - by TecMan

  We are doing a big redesign work on our website, and at least 50% of the website folders will be moved to new places with different names (i.e. many URL will be changed). Sure, Google will need some time to index new pages and we expect our SERP positions will be not so good as they are now for some time. We also have an old idea to remove www from our domain name. It seems, it's the right time to do these two works together with publishing the website with updated contents. Or is it better from SEO perspective first publish the new contents, and only after some time, when our SERP positions will return to prior results, tell Google that the domain name without www is our preferred domain name?

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• Your favorite LiveCD

  - by sova

  Perhaps this is a question better suited for linux.se but since I have servers on all environments I was wondering what your favorite LiveCD is. Wiki defines this, for those unfamiliar, as a CD or DVD containing a bootable computer operating system. Live CDs are unique in that they have the ability to run a complete, modern operating system on a computer lacking mutable secondary storage, such as a hard disk drive. Live USB flash drives are similar to live CDs, but often have the added functionality of automatically and transparently writing changes back to their bootable medium. I tend to stick with Knoppix, and today I have to register the machine on the network before I can get any of my utilities running via IP. Any suggestions?

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• List all versions of a package

  - by askb

  Is there a equivalent of this command; yum list kernel-headers --showduplicates on Ubuntu with apt-get, apt-cache etc. The above command lists various versions of the kernel-headers rpm available on F20/RHEL or installations. Closet I can get using apt-cache showpkg, not sure if there is a better way ? $ apt-cache showpkg linux-image Package: linux-image Versions: Reverse Depends: firmware-crystalhd,linux-image systemtap,linux-image fiaif,linux-image Dependencies: Provides: Reverse Provides: linux-image-3.13.0-27-lowlatency 3.13.0-27.50 linux-image-3.13.0-27-generic 3.13.0-27.50 linux-image-3.13.0-24-lowlatency 3.13.0-24.47 linux-image-3.13.0-24-generic 3.13.0-24.47 linux-image-3.13.0-24-lowlatency 3.13.0-24.46 linux-image-3.13.0-24-generic 3.13.0-24.46 Expecting similar output: $ yum list kernel-headers --showduplicates Loaded plugins: langpacks, refresh-packagekit Installed Packages kernel-headers.x86_64 3.11.10-301.fc20 @fedora Available Packages kernel-headers.x86_64 3.11.10-301.fc20 fedora kernel-headers.x86_64 3.14.4-200.fc20 updates This would help me simply do a downgrade or upgrade to a specific version.

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• What is the most cross-browser/system compatible option for 3d graphics on a web page?

  - by LachlanB

  I would like to develop a bit of functionality for a web site that involves a bit of 3D - the user can move around objects, rotate them and texture them. So far I've looked into: WebGL (in particular three.js) and it looks great, but it's not supported in IE nor IOS. IOS supports the <canvas> tag, but only 2d. It looks like three.js has an unsupported hack to make a 3d thing use the 2d canvas instead without textures, but this looks like a hack. I also considered resorting to Flash which works on most browsers, but that won't work on IOS. What's my best option for doing 3d web graphics on the vast array of browsers and interfaces? At the moment I'm thinking WebGL for web (and ask people to use chrome or firefox, and take the hit on IE) and then maybe write a native app for IOS, but I am not sure if there are better alternatives available that I don't know of.

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• A separate solution for types, etc?

  - by hayer

  I'm currently in progress updating some engine-code(which does not work, so it is more like creating a engine). I've decided to swap over to SFML(instead of my own crappy renderer, window manager, and audio), Box2d(since I need physics, but have none), and some small utils I've built myself. The problem is that each of the project mentioned over use different types for things like Vector2, etc. So to the question; Is it a good idea to replace box2d and SFML vectors with my own vector class? (Which is one of my better implementations) My idea then was to have a seperate .lib with all my classes that should be shared between all the projects in the solution.

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• .net- open excel file, format the file and save

  - by Lock

  I have an ASP web service that uses the Crystal Reports API to download an Excel report. Now, there is a few things I do not like about the Excel report that Crystal generates: - The column widths are static (as in they are not adjusted for the content). - I can't format the header row to be bold - If I suppress a data column in the report, it comes out in the Excel spreadsheet as a blank column. I currently use PHP to open the excel file, autosize the columns, bold the heading and remove blank columns, although using the PHPExcel class for this doesn't work well when the spreadsheet is only a few 100kb in size. I am thinking if I move this activity into the .NET web service, the performance will be much better. Does anyone know an efficient way of opening a Excel file and performing the operations listed above?

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