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  • Using multiplication and division with delta time

    - by tesselode
    Using delta time with addition and subtraction is easy. player.x += 100 * dt However, multiplication and division complicate things a bit. For example, let's say I want the player to double his speed every second. player.x = player.x * 2 * dt I can't do this because it'll slow down the player (unless delta time is really high). Division is the same way, except it'll speed things way up. How can I handle multiplication and division with delta time?

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  • Unicode fonts render incorrectly in Terminal

    - by Sridher
    My Ubuntu 13.04 terminal renders Unicode Indic fonts incorrectly, but they are rendered correctly in Firefox, gedit, Chrome etc. How can I fix this? Works fine in: Firefox, Chrome, Gedit, Open Office Not working in: Terminal UPDATE : Here is the screenshot from my desktop showing the telugu font rendering in various applications (including my sample pygame example) note : pygame unicode, console renders wrong and same but rest of the apps correct

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  • Quick Tip - Speed a Slow Restore from the Transaction Log

    - by KKline
    Here's a quick tip for you: During some restore operations on Microsoft SQL Server, the transaction log redo step might be taking an unusually long time. Depending somewhat on the version and edition of SQL Server you've installed, you may be able to increase performance by tinkering with the readahead performance for the redo operations. To do this, you should use the MAXTRANSFERSIZE parameter of the RESTORE statement. For example, if you set MAXTRANSFERSIZE=1048576, it'll use 1MB buffers. If you...(read more)

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  • CPU temperature higher under Ubuntu 12.10 than under Windows 7

    - by user110019
    The CPU temperature under Ubuntu 12.10 is significantly higher than under Windows 7 doing similar tasks. For example, the CPU temperature under Windows when watching flash videos is around 50-60 degrees, under Ubuntu it is between 65-75. In idle mode in Ubuntu it is usually around 50. I use an i3 core and an integrated graphics. Is there a way to lower the temperature? And I don't mean via Jupiter as this doesn't work for watching videos..

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  • Free online PHP hosting [closed]

    - by Anthony Newman
    Possible Duplicate: How to find web hosting that meets my requirements? I have a PHP script that can take $_GET parameters from a URL (i.e. http://www.example.com/test.php?name=george). I'd like to be able to host this script online so that others can pass parameters to it to obtain the returned data. Anyone know of a free PHP hosting site that would allow for his functionality? (PS: I can't host it myself) Thanks!

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  • run gnom-terminal with excutable command

    - by user286251
    When i run gnome-terminal with the -e to execute a command the PATH used to find the command is not the PATH used in the terminal initiating the command For example: I open an terminal and set the PATH to be "./:$PATH type in gnome-terminal -e cluster_node It can't find the cluster node. if I type gnome-terminal -e ./cluster_node it works If I add in the /etc/environemtn the PATH ./ then it works always/ I think it doesn't use theterminal environment PATH from which it was launched.

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  • Creating a simple accordion with JQuery

    - by nikolaosk
    This another post that is focusing on how to use JQuery in ASP.Net applications. If you want to have a look at the other posts related to JQuery in my blog click here We all know that there is always a limited space in our web page to show content.In this example I would like to show you how to create an accordion "effect" on a simple .aspx page. Some basic level of knowledge of JQuery is assumed. Sadly, we canot cover the basics of JQuery in this post so here are a few resources for you to focus...(read more)

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  • No Items show in dash of gnome-shell when using "Axiom" Theme?

    - by Hailwood
    I am using the awesome Axiom Gnome-Shell theme from Deviantart. The theme works perfectly except for one issue, no items show up in the dash? The actual items are there, e.g. if I type in something I know exists and then press enter it opens the program, there are simply no icons visible. Why is this? Yet after some more playing I have discovered some other funkyness, for example, if a lot of items are returned by the search you get:

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  • Changing direction after collision

    - by Balint
    In the first tutorial for GameMaker (catch the clown), I want to set the direction of the clown after the collision with the wall. I want to do it by pressing the wall object with the mouse (before the collision, to set the angle parameter). For example by pressing only once the wall object it would change the clown's direction after collision by 45 degrees, twice by 90 degrees, and so on. How can I do that?

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  • Evince 3.10 with menubar

    - by user43787
    I find that the 2 buttoms menu from the evince v3.10.0 are not really useful. Why did ubuntu NOT re add an menubar?. It would have been looking better in unity ! The unity top panel has enough space for an normal program menu. Here is an screenshot of what i mean: (The program works already in ubuntu 13.10 with unity or cinnamon fine. Some little compiler warnings but nothing more) Example in Cinnamon or in unity

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  • Which physics phenomenons can be simulated properly with Box2d or bullet physics? [on hold]

    - by user3585425
    Knowing that box2d or bullet physics can't simulate Newton's cradle (because of multiple bodies being in contact at the same time if I understand correctly), is there a sets of physics phenomenons that imply two or more objects that still can be simulated properly ? For example, I'm thinking about lightweight objects launched towards heavyweight objects. If the object is destroyed on contact, this would not make a difference if the energy is not transmitted correctly on impact.

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  • Programmatically Getting Name of Front-most (currently running) application in Unity

    - by NHDaly
    I am trying to write a script that executes differently depending on the currently active program, and I am wondering if there is any way to find this programatically. For example, I come from the Mac world, and in Apple's Applescript you can do the following: set appPath to the path to the frontmost application set appName to the name of file appPath and that will give you the name of the currently running application. Is there anything similar that I can do in ubuntu-land? Thanks!

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  • What is the best toolkit for writing long technical texts?

    - by thr
    I'm looking for a toolkit in the form of one or a couple of applications that can be used to write long technical texts (such as an introduction to a programming language). What applications (or combination of) are suitable for this? How should said applications be setup (for example how would one setup MS Word to best fit writing a technical text)? How do you deal with source code, syntax coloring and formatting? In the case of it being several applications, how do you interact between them?

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  • Should I set NOINDEX header for my JS, CSS and image files?

    - by Yoga
    Are there any harms if my site send NOINDEX headers for all my static assets? For image files, I refer to those valueless, e.g. background images, button images, etc. Update: more background information I have this concern is since recent Google said they also execute JS and they might fetch content via Ajax. So, for example, if I send noindex for my jQuery script, so Google would not be able to use them to load Ajax, I suppose it is not good for my site's SEO, right?

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  • Problem Solving vs. Solution Finding

    - by ryanabr
    By enlarge, most developers fall into these two camps I will try to explain what I mean by way of example. A manager gives the developer a task that is communicated like this: “Figure out why control A is not loading on this form”. Now, right there it could be argued that the manager should probably have given better direction and said something more like: “Control A is not loading on the Form, fix it”. They might sound like the same thing to most people, but the first statement will have the developer problem solving the reason why it is failing. The second statement should have the developer looking for the solution to make it work, not focus on why it is broken. In the end, they might be the same thing, but I usually see the first approach take way longer than the second approach. The Problem Solver: The problem solver’s approach to fixing something that is broken is likely to take the error or behavior that is being observed and start to research it using a tool like Google, or any other search engine. 7/10 times this will yield results for the most common of issues. The challenge is in the other 30% of issues that will take the problem solver down the rabbit hole and cause them not to surface for days on end while every avenue is explored for the cause of the problem. In the end, they will probably find the cause of the issue and resolve it, but the cost can be days, or weeks of work. The Solution Finder: The solution finder’s approach to a problem will begin the same way the Problem Solver’s approach will. The difference comes in the more difficult cases. Rather than stick to the pure “This has to work so I am going to work with it until it does” approach, the Solution Finder will look for other ways to get the requirements satisfied that may or may not be using the original approach. For example. there are two area of an application of externally equivalent features, meaning that from a user’s perspective, the behavior is the same. So, say that for whatever reason, area A is now not working, but area B is working. The Problem Solver will dig in to see why area A is broken, where the Solution Finder will investigate to see what is the difference between the two areas and solve the problem by potentially working around it. The other notable difference between the two types of developers described is what point they reach before they re-emerge from their task. The problem solver will likely emerge with a triumphant “I have found the problem” where as the Solution Finder will emerge with the more useful “I have the solution”. Conclusion At the end of the day, users are what drives features in software development. With out users there is no need for software. In todays world of software development with so many tools to use, and generally tight schedules I believe that a work around to a problem that takes 8 hours vs. the more pure solution to the problem that takes 40 hours is a more fruitful approach.

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  • How to apply effects that occur (or change) over time to characters in a game?

    - by Joshua Harris
    So assume that I have a system that applies Effects to Characters like so: public class Character { private Collection<Effect> _effects; public void AddEffect (Effect e) { e.ApplyTo(this); _effects.Add(e); } public void RemoveEffect (Effect e) { e.RemoveFrom(this); _effects.Remove(e); } } public interface Effect { public void ApplyTo (Character character); public void RemoveFrom (Character character); } Example Effect: Armor Buff for 5 seconds. void someFunction() { // Do Stuff ... Timer armorTimer = new Timer(5 seconds); ArmorBuff armorbuff = new ArmorBuff(); character.AddEffect(armorBuff); armorTimer.Start(); // Do more stuff ... } // Some where else in code public void ArmorTimer_Complete() { character.RemoveEffect(armorBuff); } public class ArmorBuff implements Effect { public void applyTo(Character character) { character.changeArmor(20); } public void removeFrom(Character character) { character.changeArmor(-20); } } Ok, so this example would buff the Characters armor for 5 seconds. Easy to get working. But what about effects that change over the duration of the effect being applied. Two examples come to mind: Damage Over Time: 200 damage every second for 3 seconds. I could mimic this by applying an Effect that lasts for 1 second and has a counter set to 3, then when it is removed it could deal 200 damage, clone itself, decrement the counter of the clone, and apply the clone to the character. If it repeats this until the counter is 0, then you got a damage over time ability. I'm not a huge fan of this approach, but it does describe the behavior exactly. Degenerating Speed Boost: Gain a speed boost that degrades over 3 seconds until you return to your normal speed. This is a bit harder. I can basically do the same thing as above except having timers set to some portion of a second, such that they occur fast enough to give the appearance of degenerating smoothly over time (even though they are really just stepping down incrementally). I feel like you could get away with only 12 steps over a second (maybe less, I would have to test it and see), but this doesn't seem very elegant to me. The only other way to implement this effect would be to change the system so that the Character checks the _effects collection for effects that alter any of the properties any time that they are being used. I could handle this in functions like getCurrentSpeed() and getCurrentArmor(), but you can imagine how much of a hassle it would be to have that kind of overhead every time you want to do a calculation with movement speed (which would be every time you move your character). Is there a better way to deal with these kinds of effects or events?

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  • finding houses within a radius

    - by paul smith
    During an interview I was asked given the following: A real estate application that lists all houses that are currently on the market (i.e., for sale) within a given distance (say for example the user wants to find all houses within 20 miles), how would you design your application (both data structure and alogirithm) to build this type of service? Any ideas? How would you implement it? I told him I didn't know becaue I've never done any geo-related stuff before.

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  • Who decides what category the software in the Ubuntu Software Centre is filed under, and who can we report errors to?

    - by coversnail
    I noticed when browsing through the Ubuntu Software Centre that some programs seem to be placed in the wrong categories, for example Pinta, an image editor, appears under Developer Tools (instead of Graphics) in my list of installed programs. Is this a case of the developer incorrectly categorising their software when they uploaded it to the software centre, or does Canonical decided what goes where? And if we notice an obvious mistake who do we inform, the software developer or file a bug somehow?

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  • Should selenium tests be written in imperative style?

    - by Amogh Talpallikar
    Is an automation tester supposed to know concepts of OOPS and design patterns to write Tests in a way where changes & code re-use are possible? For example, I pick up Java to write cucumber step definitions that instruct a selenium webdriver. Should I be using a lot of inheritance, interfaces, delegation etc. to make life easier or would that be overly complicated for something that should just line by line instructions?

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  • Best place to put application files [closed]

    - by takeshin
    Possible Duplicate: 'Installing' Applications, where to put folders? Hello, Where shall I put applications which do not require install (extracted from archive)? E.g. java based programs executable scripts In two variants: for all users for one user Some times the archive itself contains directories like lib or bin. For example, apps like ArgoUML Shall I put all the apps in /usr/local/appname?

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  • Can I change the filter options in the video lens?

    - by user49523
    Can I change the video options on the new dash menu? To be more precise, on the video file find menu filters, can I Add, Remove or Change what URLs can be include? If so how can I do? For example if I want to change in the filters youtube shows to YouTube comedy, how you do it? (I just installed MyUnity but from what I read and tested it won't fully work on Unity 2D, however I can change video filters using that)

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  • Reset Unity and Gnome to default values

    - by Luca Cerone
    Apparently I've messed up a lot with my Unity and Gnome 3 settings and now my system looks ugly, and even if I made changes (using gnome-tweak-tool for example) to my configuration nothing seems to work. Can you guys tell me how to delete all the Unity and Gnome related settings (like also compiz and all other similar ones) and restart with the settings of an installation from scratch?? I'd really appreciate your help, thanks a lot guys!

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  • Why are the stats for HTML Improvements in Google Webmaster Tools not decreasing?

    - by Kookoriko
    I have read that resolving HTML Improvements in Google Webmaster Tools can take as long as 6 weeks to show up, but those numbers seem to increase without decreasing even though I've been fixing almost everything that Google points out. I have checked some sites with the View as Google tool and the bugs are resolved (let's say "short meta descriptions" for example). Any idea why is this happening?

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  • Paradigms fit for UI programming

    - by Inca
    This is a more specific question (or actually two, but they are related) coming from the comments of OOP technology death where someone stated that OOP is not the right paradigm for GUI programming. Reading the comments there and here I still have the feeling there are things to learn: which programming paradigms are considered good fits and why are they better than others (perhaps with examples to illustrate?) I removed the tk-example from the title and question

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  • VB multiline string as XML Literals

    - by Mike Koerner
    Probably known by most programmers, but I want to document it so I can find it myself later.An easy way to create a multiline VB string is to create a xml literal and use the valueDim myTest = <string>Here is a multiline string that I want to use insome other code.  Ithelps the readability andcut and paste functionality.Even if this is a poor example</string>Dim strInside as string = myTest.value

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