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  • The input doesn't recognize that I release the key?

    - by joapet99
    I'm creating a window (JOptionPane), in response to a collision. However, if the player is holding a key down when the window pops up, the input doesn't trigger a key release when the key is released. I don't think you can just check it with a isRelease function in the input, since the input is kind of corrupt. Can you help me? The way I check if the key is down: if(input.isKeyDown(Input.KEY_A)&& TestLevel.isFighting == false){ if(owner.canMoveLeft){ position.x -= speed * delta; } } I am not handling the key release by myself, but if I check if the key is down it should work. But it doesn't.

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  • How to redirect visitors to the server that is closest to them and where to place the servers?

    - by user2971623
    I am focusing on providing fast page refreshes for my visitors and I wonder where is the smartest spot to place my servers on? I understand that the best would be to place a server in every country or even city, but that is of course not doable with my economy. I am thinking of maybe setting up three servers, one in the middle of USA (Kansas?), one in Italy and one in Sweden. What do you think about that? I don't care about Africa since they haven't even got computers so I won't get traffic from there anyway. China, North Korea etc are probably just visiting chinese websites, they barely know english anway... The next problem is how do I redirect a visitor from Finland to the Swedish server? I don't want the visitor from Finland to be using the USA server or vice versa.

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  • transfer Thunderbird (17) Profile on Win7 to Ubuntu 12.04

    - by William Curran
    I want to transfer Thunderbird Profile on Win7 to thunderbird (17) Ubuntu 12.04. I already copied the profile folder from Windows to Ubuntu and modified progile.ini on the ubuntu machine to include [Profile] Name=Bill IsRelative=1 Path=(the name of the transfered profile folder) I think the problem is that the Win. TB profile content (files and folder structure) look VERY different that the that of the unbuntu TB profile's that was created on installation. The Ubuntu install is new where as the Win TB has undergone many updates. Seems the system for profile storage has changed drastically. I tried to start TB in safe mode but could't get the path correct to start TB in the terminal with the -safe-mode switch. What can I do? Bill

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  • How can I tell what error grub has when I can't read what it's saying?

    - by RolandiXor - The Ice Man
    Grub won't allow me to get into any systems on my HP dv7 (it runs 12.10). As the screen is broken, I can't read what the error is. Nothing works, not even the recovery mode. It gives me some error about "cannot find" (I think) and Press any (I guess key?) When a press a key I'm dropped back to the menu. At the moment I'm trying all the recovery options I know. However, it would be great if someone could tell me how to know what error grub is facing from a live cd or something (maybe a log file or something could help)? NB: I can view the filesystem from a liveCD, and I did check the filesystem - it was clean.

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  • Wifi very slow on Ubuntu 12.04 but not on Win7, need help

    - by user84504
    I have an enormous problem: I've a Sony Vaio VGN-NR21S with win7 and Ubuntu 12.04 in dual boot. With Windows everything is fine (except that is windows) but with Ubuntu the wireless connection is awfully slow, basically unusable. I've already search for similar discussion but the solution proposed didn't worked. I've noticed this issue also in live mode both with ubuntu and linux mint. I've installed Ubuntu onto an Acer that shows the same problem when connected via wifi to my router, so I think that maybe the issue is about compatibility with my home router. I really need help, I don't want unistall ubuntu! Please tell me which output u need to help me, thanks.

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  • PLEASE HELP! Cannot login to server after file permissions change!

    - by John
    So, I did something really stupid. Please bear with me as I am new to ubuntu server. I ran chmod -R 700 / when I was logged in as root. Now when I try to login as my normal user I immediately get kicked out. Is there anyway to log back in to the server whether it is root or whoever so that I can change the permissions? or am I totally screwed? I dont think I have root access enabled in the /etc/ssh/sshd_config file. I do have physical access to the server. I really need some help here. Thanks in advance!

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  • How to use encypted home directory after reinstallation

    - by user15533
    I reinstalled Ubuntu on a machine with encrypted home directories. After that installation I have edited the fstab to boot the old home partition in /home. After doing so I can not login anymore with LDM. If I type my password, witch is the same as before, after a short moment of activity I am referred back to login page. I think this is due to the fact, that my home directory is not decrypted correctly. But I read here that this should work. What am I supposed to do?

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  • Fixing a bug that has never caused a problem until now.

    - by codeelegance
    I recently made a change that caused some code to be run far more often than it used to. This lead to the discovery of a bug. This bug had the potential to happen any time that code was run but because it was run so seldom it never surfaced. When I brought this to the lead developer's attention he wanted me to undo the change that exposed the bug rather than fix the bug quoting the adage, "If it ain't broke, don't fix it". Its clear to me that we were just lucky up until now but he won't listen to reason. Should I fix it anyway? Update The lead technically doesn't have any authority over me. Just tenure. He's been the sole developer on the project for a number of years until a year ago and I think he doesn't take constructive criticism very well. For what's worth, I didn't criticize him I just pointed out that just because the bug never showed up didn't mean it wasn't there.

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  • How do I implement powerups for my Breakout clone?

    - by Eva
    I'm making a simple Breakout clone in Python that will have very many powerups/powerdowns (so far I came up with 26). Some will affect the paddle (paddle missile, two paddles, short paddle, etc.), some will affect the ball (slow ball, destructo-ball, invisible ball, etc.), some will affect the bricks (brick scramble, move up, bricks indestructible, etc.), and some will affect other game aspects (extra life, more points, less points, etc.). I'm pretty sure I have the code to draw the falling powerups and test for collisions with the paddle down, but I'm confused about how to code the effects of the powerups. Since there are very many powerups, it seemed inefficient to add specific methods to each component as done in this tutorial. However, I can't think of an other ways to implement the powerups. I found a page that hints at some way to design powerup behavior using classes, but I'm at a loss for how to do that. (A short example would help.) Please give me a short code example of another way to implement the effects of the powerups.

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  • Can a table be both Fact and Dimension

    - by PatFromCanada
    Ok, I am a newbie and don't really think "dimensionally" yet, I have most of my initial schema roughed out but I keep flipping back and forth on one table. I have a Contract table and it has a quantity column (tonnes), and a net price column, which need to be summed up a bunch of different ways, and the contract has lots of foreign keys (producer, commodity, futures month etc.) and dates so it appears to be a fact table. Also the contract is never updated, if that makes a difference. However, we create cash tickets which we use to pay out part or all of the contract and they have a contract ID on them so then the contract looks like a dimension in the cash ticket's star schema. Is this a problem? Any ideas on the process to resolve this, because people don't seem to like the idea of joining two fact tables. Should I put producerId and commodityId on the cash ticket? It would seem really weird not to have a contractID on it.

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  • Do you use i-->0 for backward loops?

    - by maaartinus
    Some people write for (int i=N; i-->0; ) doSomething(i); instead of for (int i=N-1; i>=0; --i) doSomething(i); for backward loops. The --> "operator"1 looks very confusing at the first glance, but it's trivial: i-->0 simply parses as (i--)>0, and once you get it, you see it immediately. The main disadvantage is the strange look. The advantage is that you'll get it always right (unlike the more verbose version offering the possibility to forget something, which really happened to me a couple of times). What do you think about using the --> "operator"? 1First time I saw the funny term in a comment to this question today.

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  • Massive vehicular network simulator

    - by IvanK
    I am interested in making a vehicular network simulator (vehicular network as in vehicles can be equipped with radios and when they come in range they can talk with each other). I want to be able to scale to 1000s of nodes if not more. I am quite frankly torn on how to do, or even which language to use or whether I should instead be using some other piece of software/code. I know that this should depend on a lot of design decisions that I may have, but it would be great if somebody can point me towards the right direction. I was planning to use a multi-threaded architecture, but not sure whether it will add to the complication or make it easier. Also if I go for a multi-threaded architecutre, do you think that 'Go' language will be a good choice?

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  • Best method in PHP for the Error Handling ? Convert all PHP errors (warnings notices etc) to exceptions?

    - by user1179459
    What is the best method in PHP for the Error Handling ? is there a way in PHP to Convert all PHP errors (warnings notices etc) to exceptions ? what the best way/practise to error handling ? again: if we overuse exceptions (i.e. try/catch) in many situations, i think application will be halted unnecessary. for a simple error checking we can use return false; but it may be cluttering the coding with many if else conditions. what do you guys suggest ?

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  • Learning PHP MySQL [closed]

    - by Keith Groben
    I've been a designer for several year now. I'm now very interested in learning PHP, MySQL. I've read through W3Schools already and it helped me become familiar. I now want to know where I could go to start building some simple database and php applications so I could be come familiar with coding and start to improve. I think hands on application is the best way to learn. Since I'm a beginner, much of what I've found so far is sort of advanced to me.

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  • Can all code be represented as a series of Map / Filter / Reduce operations?

    - by Mongus Pong
    I have recently been refactoring large chunks of code and replacing them with Linq queries. Removing the language bias - Linq is essentially a set of Map / Filter and Reduce operations that operate on a sequence of data. This got me thinking, how far would I theoretically be able to take this. Would I be able to rewrite the whole code base into a series (or even a single) of Map / Filter and Reduce operations. Unfortunately I get paid to do useful stuff, so I haven't been able to experiment much further, but I can't think of any code structure that couldn't be re structured as such. Side effected code can be dealt with via monads.. Even output is essentially mapping memory addresses to screen addresses. Is there anything that couldn't be (theoretically) rewritten as a Linq query?

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  • Using XNA libraries in your Silverlight Windows Phone 7 applications

    I recently got an inquiry to my Microsoft Translator sample on if this would work with the Silverlight in the Windows Phone 7 SDK. I hadnt tried it before, so I created a sample Windows Phone 7 application and copied the code over. I used a basic UI to mock up the similarities: And then clicked the button. The text translated fine, but no audio. I didnt get any warnings that the WaveMSS code sample I was using wouldnt work. Then I remembered about XNA. NOTE: I actually think this is a bug...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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  • Benefits of TOGAF or similar?

    - by Lunatik
    I can read the website blurb and be impressed by the alleged benefits, but I haven't worked anywhere or with anyone who followed the TOGAF (or any alternative) architecture framework. Our organisation has declared itself dedicated to moving from what is currently a fairly shambolic design & development model towards something approaching a modern structured process. Things like TOGAF have been mentioned as helping achieve a world-class enterprise development environment (!) but I'm convinced that no-one here really understands the real-world benefits that wholesale adoption might bring and, perhaps more importantly, the effort/pain required to achieve the same. Do you have experience in using TOGAF or similar to wrestle control in an organisation? Do you think that use of the framework brought any benefit? Edit: For clarification TOGAF is "The Open Group Architecture Framework", a detailed method and set of tools for developing an enterprise architecture. See: http://www.opengroup.org/architecture/togaf8-doc/arch/

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  • Can't install AMD drivers and Blinking problem

    - by demonscream
    I just installed Ubuntu 12.04 LTS with WUBI, everything is going fine and ubuntu is awesome but i have a little problem. When i open my Sony VAIO model E laptop, i have 2 choices (which is normal) but when i select Ubuntu 1/2 of the time it will just give a rapidly blinkin color background and can only be corrected if i reboot the computer and select ubuntu again. I think this has something to do with the fact i can't get any driver update for my computer from AMD, according to their website, VAIO computers aren't supported. I have a AMD RADEON HD 7650M graphic card which is not detected in ubuntu. When i try to install the drivers using the drivers application it gives a "can't install" error. What should i do?

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  • Why should I use a web framework's template language over python's templating options?

    - by stariz77
    I'm coming from a python CGI background and was wanting to move into something more contemporary and think I have decided upon web.py as the framework I would like to use. In regards to templating, previously I used formatted strings and the string.Template module to effect most of my templating needs. After reading through a few of the templating options I have heard mentioned, I began wondering what the main benefits of using something like the Django or jinja templating options over "native" Python templating options were? Am I just going to be replacing $tmpl_var with {{ tmpl_var }} and s.substitute(tmpl_var=value) with t.render(s), i.e., alternate syntax? or will I gain additional advantages from using these templating systems?

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  • Creating several instances of the same object, and selecting only one

    - by hustlerinc
    I'm playing around with making a puzzle game, haven't done that much before I run into my first problem. Basically, I want to create a certain amount of the same object/function. But without hardcoding the different instances. I think maybe an array is a good idea? and then a for loop to push the objects in? And then I need to be able to select one of these objects by clicking on it, how would I do that? How do I know which ball in the array was clicked? A loop again? I made a jsFiddle example (you need to click the orange ball to select, then you can move it around by clicking the canvas). This is what I want to do, but with more balls. How would you solve this? Help appreciated.

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  • Is there any hard data on the (dis-)advantages of working from home?

    - by peterchen
    Is there any hard data (studies, comparisons, not-just-gut-feel analysis) on the advantages and disadvantages of working from home? My devs asked about e.g. working from home one day per week, the boss doesn't like it for various reasons, some of which I agree with but I think they don't necessarily apply in this case. We have real offices (2..3 people each), distractions are still common. IMO it would be beneficial for focus, and with 1 day / week, there wouldn't be much loss at interaction and communication. In addition it would be a great perk, and saving the commute. Related: Pros and Cons of working Remotely/from Home (interesting points, but no hard facts) [edit] Thanks for all the feedback! To clarify: it's not my decision to make, I agree that there are pro's and con's depending on circumstances, and we are pushing for "just try it". I've asked this specific question because (a) facts are a good addition to thoughts in arguing with an engineer boss, and (b) we, as developers, should build upon facts like every respectable trade.

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  • How do I output my audio input?

    - by VarLogRant
    A few iterations ago, I think this was Jaunty but could've been before, I would plug a 1/8" audio cable from the line-out of a Windows netbook to the line-in of my Ubuntu machine, so I would have all the sound from both machines without having to plug both into a mixer which I don't have. I didn't do this much, as I was pretty-much happy with Banshee at the time. But with Karmic, and still with Lucid, I can only get the output if I'm recording with Audacity. Which I'm not going to do from my web-development and systems programming workstation. I can tell by plugging in headphones that my netbook has audio out working. I can see Sound Preferences that the Ubuntu machine is receiving them. I just want the old behavior back. Help?

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  • Preparing for Interview: I feel like, I wanna start coding all data structures again.... Is it a right way to start?

    - by howtechstuffworks
    I started preparing for my interview. I will be graduating this May. Right now, I am doing an internship in an product based company, so I did my fair share of preparation. The thing is, whenever, I try to do something, I always think that I should start everything from page 1. It is sometimes not at all helpful.... For example, reading a programming book from page 1 is not going to helpful, as I never completed one and always stopped half way through or rushed through towards deadlines. I am facing a similar situation now. I feel like, I wanna start coding all data structures from first(I attempted and finished atleast 6-7 last fall, preparing for interview). Now I feel like, I wanna code everything from first, instead of attempting something new.... I am not quite sure, what this is, but this is the way I have been..... LOL

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  • Is the UX affected negatively by fully cacheable pages?

    - by ChocoDeveloper
    I want to have fully cacheable pages in my websites, but one cannot do that if they contain user-specific data, like the userbar or things in the UI that can change depending on the permissions the user has. So I was thinking whether it was possible to pull everything that is user-specific via ajax, and update the UI accordingly. But I'm worried that this might be annoying for the user, and also it might be difficult to develop. What do you think? Is there a pattern or something I can follow to deal with this?

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  • Server costs and back loading for mobile devices

    - by user23844
    A company approached me to design an MMO for the mobile platform and I have the perfect idea for them. My question is how much would a server for a FTP game that has both a PVE element and PVP cost? Also do you think that it would be better or is it even possible to back load the data onto the phones (trying to come up with some interesting way to back up the data in case of emergency). I don't want the game to be totally online reliant (I want to appeal to not only phone users but also iPod touch users) and for there to be an offline mode. If you can't tell this is my first game besides simple projects I've done on the side. Any help would be greatly appreciated.

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