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  • Cocos2d copied actions not responding?

    - by Stephen
    I am running an animation on 2 sprites like so: -(void) startFootballAnimation { CCAnimation* footballAnim = [CCAnimation animationWithFrame:@"Football" frameCount:60 delay:0.005f]; spiral = [CCAnimate actionWithAnimation:footballAnim]; CCRepeatForever* repeat = [CCRepeatForever actionWithAction:spiral]; [self runAction:repeat]; [secondFootball runAction:[[repeat copy] autorelease]]; } The problem I am having is I call this method: - (void) slowAnimation { [spiral setDuration:[spiral duration] + 0.01]; } and it only slows down the first sprites animation and not the second one. Do I need to do something different with copied actions to get them to react to the slowing of the animation?

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  • How do you name your personal libraries?

    - by Mehrdad
    I'm pretty bad with naming things. The only name I can every generically come up with is 'helper'. Say, if I have a header file that contains helping functions for manipulating paths, I tend to put it inside my "helper" directory and call it "path-helper.hpp" or something like that. Obviouslly, that's a bad naming convention. :) I want to have a consistent naming scheme for my folder (and namespace) which I can use to always refer to my own headers and libraries, but I have trouble finding names that are easy to type or remember (like boost)... so I end up calling some of them "helper" or "stdext" or whatnot, which isn't a great idea. How do you find names for your libraries that are easy to remember and easy to type, and which aren't too generic (like "helper" or "std" or "stdext" or the like)? Any suggestions on how to go about doing this?

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  • How to open a MIB file in tkmib?

    - by l0b0
    I've tried to open several MIB files in tkmib without success. For example: $ sudo apt-get install tkmib $ wget http://www.mibsearch.com/vendors/Compaq/download/CPQHLTH-MIB $ tkmib CPQHLTH-MIB Click "walk", then you should get an error message like this: setting opts getaddrinfo: CPQHLTH-MIB No address associated with hostname error:snmp_new_session: Couldn't open SNMP session at /usr/lib/perl5/SNMP.pm line 475. unable to create session at /usr/lib/perl5/SNMP.pm line 547. Tk::Error: Can't call method "getnext" on unblessed reference at /usr/bin/tkmib line 506. main::snmpwalk at /usr/bin/tkmib line 506 Tk callback for .frame5.button2 Tk::__ANON__ at /usr/lib/perl5/Tk.pm line 250 Tk::Button::butUp at /usr/lib/perl5/Tk/Button.pm line 175 <ButtonRelease-1> (command bound to event) As I'm completely new to SNMP and MIB files, and man tkmib is sparse to say the least, what do I actually need to do to be able to work with this file?

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  • The Big Announcement, This Year, at Devoxx 2011!

    - by Yolande
    Stephan Janssen started the developer conference with his traditional "Welcome and Announcements" and this year announced Devoxx France, the new and only Devoxx conference outside of Belgium. It will take place in Paris, April 18 to 20, 2012. The Paris Java user group is organizing the 3 day conference. The conference is designed after Devoxx with Tools in Action, Labs, BOFs and Quickies and with one university day and 2 conference days. The model works well since Stephan turns down attendees every year. The content will be 75% in French and 25% in English. Call for papers opened today. Oracle will be a sponsor the event! 

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  • Naming a predicate: "precondition" or "precondition_is_met"?

    - by RexE
    In my web app framework, each page can have a precondition that needs to be satisfied before it can be displayed to the user. For example, if user 1 and user 2 are playing a back-and-forth role-playing game, user 2 needs to wait for user 1 to finish his turn before he can take his turn. Otherwise, the user is displayed a waiting page. This is implemented with a predicate: def precondition(self): return user_1.completed_turn The simplest name for this API is precondition, but this leads to code like if precondition(): ..., which is not really obvious. Seems to me like it is more accurate to call it precondition_is_met(), but not sure about that either. Is there a best practice for naming methods like this?

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  • adding regular expression in php not work

    - by John Smiith
    Code i added ([a-zA-Z0-9\_\-]+) but not work i wan't to include all css files is there is any other way to add?? My code file css.php header("Content-type: text/css"); $css = array( '([a-zA-Z0-9\\_\\-]+).css', ); foreach ($css as $css_file) { $css_get = file_get_contents($css_file); echo $css_get; } call.php <link href="css.php" rel="stylesheet" type="text/css" /> i wan't to rewrite css.php to css.css so public can see css.css instead of css.php. how can i do that using php script?

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  • # id - urls with id first display full page, then move to #id

    - by guisasso
    I've noticed this in the new version of chrome, and ie9 and 10. Some urls in a photo gallery have a #id tag as they are supposed to display a full view of a picture. Basically, a div in a lower position on the page has that #id that i call via a.com/1.html#id. This has never been an issue until lately, when i noticed a bit of a lag. The issue: The website loads normally, then the view moves to the #id as supposed, but with some lag sometimes, perhaps because of the high resolution of the picture, which is somewhat noticeable. Anyway to avoid this, or make it so the page would move to the correct #id even before fully loaded?

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  • building kernel headers (v3.4) breaks wifi (in Ubuntu 12.04.1 LTS)

    - by iphonedev7
    I have dual-booted by Samsung Series 5 Chromebook into Ubuntu using Jay Lee's script/instructions, and then installed the ~500 updates that appear thereafter. Now, I am trying to build my kernel headers in an attempt to enable virtualization so that I can run VirtualBox (I have a VM image on a flashdrive). I followed the instructions here: https://groups.google.com/forum/?fromgroups=#!topic/chromebook-central/PPQFpC7mYzk mainly doing as olofj suggests in his answer, while also making sure to abide by additions/edits made by panZ and algp. However, now that I have done so, my wifi has stopped working, and when I click on the network icon in the top bar, in place of wifi networks there is a grayed-out message that says "no network devices available". I have an Atheros AR9300 Ethernet card (I think thats what you call it). Any help is much needed and appreciated. Any further details necessary to answer the question will be provided as necessary. Thanks!

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  • Bad Bot blocking Revisited

    - by Tom
    I've read a lot about bad bot blocking, php scripts, .htaccess techniques, etc... Is this a valid method? Since .htacces can rewrite and send a bad bot a 403 deny or forward to something like spam poison, is it possible to Disallow a folder, then through .htaccess in that specific folder redirect to spampoison? Since Apache reads each .htaccess independently and follows specific instructions, then a bad bot not following robots.txt would just be redirected. Or anyone trying to access, /badbot/ or whatever I choose to call my trap folder. Thanks Tom

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  • Skype Video not working 13.04 & 13.10?

    - by MrA
    I am trying to fix the issue with the video calls. I can check the video from the option menu, it works fine. But it does not work while calling someone. It shows video disabled. How can i fix this issue? I am using Ubuntu 13.10 and skype version 4.2.0.11 I checked all sites including below links but could not find solution: Skype no video in 13.04 Skype Video Call Not Working Ubuntu 11.10 No video skype found Video doesn't work well in skype http://www.youtube.com/watch?v=WeaLCzB4qy8

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  • Scripting Part 1

    - by rbishop
    Dynamic Scripting is a large topic, so let me get a couple of things out of the way first. If you aren't familiar with JavaScript, I can suggest CodeAcademy's JavaScript series. There are also many other websites and books that cover JavaScript from every possible angle.The second thing we need to deal with is JavaScript as a programming language versus a JavaScript environment running in a web browser. Many books, tutorials, and websites completely blur these two together but they are in fact completely separate. What does this really mean in relation to DRM? Since DRM isn't a web browser, there are no document, window, history, screen, or location objects. There are no events like mousedown or click. Trying to call alert('hello!') in DRM will just cause an error. Those concepts are all related to an HTML document (web page) and are part of the Browser Object Model or Document Object Model. DRM has its own object model that exposes DRM-related objects. In practice, feel free to use those sorts of tutorials or practice within your browser; Many of the concepts are directly translatable to writing scripts in DRM. Just don't try to call document.getElementById in your property definition!I think learning by example tends to work the best, so let's try getting a list of all the unique property values for a given node and its children. var uniqueValues = {}; var childEnumerator = node.GetChildEnumerator(); while(childEnumerator.MoveNext()) { var propValue = childEnumerator.GetCurrent().PropValue("Custom.testpropstr1"); print(propValue); if(propValue != null && propValue != '' && !uniqueValues[propValue]) uniqueValues[propValue] = true; } var result = ''; for(var value in uniqueValues){ result += "Found value " + value + ","; } return result;  Now lets break this down piece by piece. var uniqueValues = {}; This declares a variable and initializes it as a new empty Object. You could also have written var uniqueValues = new Object(); Why use an object here? JavaScript objects can also function as a list of keys and we'll use that later to store each property value as a key on the object. var childEnumerator = node.GetChildEnumerator(); while(childEnumerator.MoveNext()) { This gets an enumerator for the node's children. The enumerator allows us to loop through the children one by one. If we wanted to get a filtered list of children, we would instead use ChildrenWith(). When we reach the end of the child list, the enumerator will return false for MoveNext() and that will stop the loop. var propValue = childEnumerator.GetCurrent().PropValue("Custom.testpropstr1"); print(propValue); if(propValue != null && propValue != '' && !uniqueValues[propValue]) uniqueValues[propValue] = true; } This gets the node the enumerator is currently pointing at, then calls PropValue() on it to get the value of a property. We then make sure the prop value isn't null or the empty string, then we make sure the value doesn't already exist as a key. Assuming it doesn't we add it as a key with a value (true in this case because it makes checking for an existing value faster when the value exists). A quick word on the print() function. When viewing the prop grid, running an export, or performing normal DRM operations it does nothing. If you have a lot of print() calls with complicated arguments it can slow your script down slightly, but otherwise has no effect. But when using the script editor, all the output of print() will be shown in the Warnings area. This gives you an extremely useful debugging tool to see what exactly a script is doing. var result = ''; for(var value in uniqueValues){ result += "Found value " + value + ","; } return result; Now we build a string by looping through all the keys in uniqueValues and adding that value to our string. The last step is to simply return the result. Hopefully this small example demonstrates some of the core Dynamic Scripting concepts. Next time, we can try checking for node references in other hierarchies to see if they are using duplicate property values.

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  • How do I communicate with an IronPython component in a C#/XNA game?

    - by Jonathan Hobbs
    My XNA game is component-oriented, and has various components for position, physics representation, rendering, etc, all of which extend a base Component class. The player and enemies also have controllers which are currently defined in C#. I'd like to turn them into Python scripts, but I'm not sure how to interact with those scripts. The examples in Embedding IronPython in a C# Application suggest I'd have to create a wrapper class (e.g. a Script component) which compiles a Python script, and call the Update methods of the component in the script Is this the most effective way of working with a Python object? I feel that I'm missing something in my research - there must be a way to load up a script, instantiate a Python object and then work directly with it from within C#. Or is the wrapper required?

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  • What is missing and should be added to Code Complete 3rd Edition? [closed]

    - by Peter Turner
    It's been quite a few years since Code Complete was published. I really love the book, I keep it in the bathroom at the office and read a little out of it once or twice a day. What developments in computer software... development need to be added to Code Complete 3e, and for the sake of reductionism, what should be removed to make room for them? Is it necessary even possible to call Code Complete Code Complete if it doesn't have language features that even Delphi has like anonymous methods and generics? Also, what languages would be more appropriate than C++ to use for a majority of code examples?

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  • Why write clean, refactored code?

    - by Shamal Karunarathne
    Hi programming lovers, This is a question I've been asking myself for a long time. Thought of throwing out it to you. From my experience of working on several Java based projects, I've seen tons of codes which we call 'dirty'. The unconventional class/method/field naming, wrong way of handling of exceptions, unnecessarily heavy loops and recursion etc. But the code gives the intended results. Though I hate to see dirty code, it's time taking to clean them up and eventually comes the question of "is it worth? it's giving the desired results so what's the point of cleaning?" In team projects, should there be someone specifically to refactor and check for clean code? Or are there situations where the 'dirty' codes fail to give intended results or make the customers unhappy? Do feel free to comment and reply. And tell me if I'm missing something here. Thanks.

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  • Symbolic Link: No such file or directory

    - by Sehe
    i created a symbolic Link from a File at "/opt/bladir/bla" to "bla". So "bla" is now in "/usr/bin/bla". But if i want to call "bla" at terminal, there comes the No such file or directory error. I looked up at "/usr/bin/bla" and the file is linking correctly at "/opt/bladir/bla". What can be the error? P.S. here is my terminal "entry": sudo ln -s /opt/bladir/bla bla Thanks! €: Problem solved. According to the Feature List, 12.04 should have Multiarch support... 'should'. I got the ia32-libs from synaptic and now the program wents just fine. As it looks, my symbolic links where correct. Thank you for all the answers!

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  • gvim configuration does not work like it should

    - by ganjan
    Hi. I have a little problem with my vim config. This what I got in my home/user/.gvimrc syntax enable "Enable syntax hl colorscheme peaksea set background=dark set gfn=Inconsolata:h11 set nonu set history=1000 set scrolloff=3 set number " turn on line numbers " Save a global session file on session close nmap SQ <ESC>:mksession! ~/.vim/session/Session.vim<CR>:wqa<CR> function! RestoreSession() if argc() == 0 "vim called without arguments execute 'source ~/.vim/session/Session.vim' end endfunction autocmd VimEnter * call RestoreSession() The colorsheme work, but the font has way to much spacing. Every sentence is twice as long. I installed the Inconsolata font and I have the same config on my windows 7 box and it works fine.

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  • How can I make the camera return to the beginning of the terrain when it reaches the end?

    - by wbaccari
    How can I make the camera return to the beginning of the terrain when it reaches the end? I tried using the ICameraSceneNode*-setPosition(). if (camera->getPosition().X>1200.f) camera->setPosition(vector3df(1.f,1550.f,camera->getPosition().Z)); if (camera->getPosition().X<0.f) camera->setPosition(vector3df(1199.f,1550.f,camera->getPosition().Z)); if (camera->getPosition().Z>1200.f) camera->setPosition(vector3df(camera->getPosition().X,1550.f,1.f)); if (camera->getPosition().Z<0.f) camera->setPosition(vector3df(camera->getPosition().X,1550.f,1199.f)); It seems to work fine with a flat terrain (one shade of grey in heightmap) but it starts to produce a strange behavior as soon as i try to add some hills. Edit: The setPosition() call seems to perform a translation of the camera toward the new position, therefore the camera stops at the first obstacle it encounters on its way.

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  • Gamification at OOW

    - by erikanollwebb
    Last week was Oracle OpenWorld, and for those of you not in tech or downtown San Francisco, that might not mean a whole lot.  However, if you are familiar with it, Oracle OpenWorld is our premier customer event.  This year, more than 50,000 people attended.  It's not a good week to visit San Francisco on vacation because Oracle customers take over all the hotels in town!  It was crazy, but a lot of fun and it's a great opportunity for the Apps UX group to do customer research with a range of customers.  This year, more than 100+ customers and partners took the time to team up with our UX experts and provide feedback on new designs and ideas. Over three days,  UX teams conducted 8  one-on-one user feedback sessions, 4 focus groups and 7 surveys. In addition, we conducted a voice capture activity and were able to collect close to 70 speech samples at the lab and DEMOgrounds. This was a great opportunity for us to do some testing on some specific gamification concepts with a set of business analysts.  We pulled in 8 folks for a focus group on gamification concepts and whether they thought those would work for their teams. To get ready for this, my designer extraordinaire, Andrea Cantú, flew into town and we spent almost a week locked in a room together brainstorming design ideas.  We killed a few trees trying to get all of our concepts and other examples together in the process, but in the end, we put together a whole series of examples of how you might gamify an Oracle app (in this case, CRM).  Andrea is a genius for this kind of thing and the comps she created looked great.  Here's a picture of her hard at work!  We also had the good fortune to have my boss, Laurie Pattison and my usability contractor, Shobana Subramanian there to note take and observe as well.  Here's a few shots of us, hard at work preparing for the day (or checking out something on Laurie's iPhone...) To start things off, we gave an overview of gamification and I talked about what it's used for.  Then we gave the participants a scenario about our sales person and what we were trying to get her to do. It was a great opportunity to highlight what our business goals might be and why we might want to add game mechanics.  It was also a good way to get them thinking about how that might work for them in their environments and workplaces. There were some surprises for the day.  We asked how many of them were already familiar with the concept of gamification--only two people had heard of it and only one was using game mechanics in his work.  That's in contrast to a survey we just ran internally with folks in a dev org where almost 50% of about 450 respondents had heard of gamification.  As we discussed the ways game mechanics could be used, it became clear that many of the folks had seen some game mechanics in action but didn't know that's what they were.  We also noticed that the folks in this group felt that if they were trying to sell the concept in their orgs, they wouldn't call it gamification.  That's not a huge surprise to me--they said what we've heard in the past, that gamification does not seem like a serious term for enterprise software.  They said they'd sell it with the goals--as a means to increase behaviors by rewarding users for activities.  It's a funny problem.  The word puts some folks off, but at the same time, I haven't seen another one word description that quite captures the range of things that "gamification" can cover.  My guess is that the more mainstream the term becomes, the more desensitized we'll become to the idea the it's trivializing enterprise software in some way.  Still, it was interesting to note that this group still felt that they would not take this concept to their bosses or teams and call it "gamification".  They focused on the goals, and how we could incentivize desired behaviors with game mechanics.  As I have already stated in other posts, I feel like my org is more receptive to discussing how this is just a more transparent type of usability and user experience methods than talking about gamification.  That's the argument they said they would use. All in all, it was a good session.  I love getting to talk to customers, present ideas and concepts, and get their feedback and input.  It's the type of thing that really helps drive our designs and keeps us grounded in what our customers need/want.  We're already planning where to get more feedback opportunities in the coming months. 

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  • stud ubuntu howto?

    - by Matt H
    I've just been looking at the stud init script as I thought perhaps I'm meant to create a stud.conf inside /etc/stud However, in looking through the init script it would apppear that it loads stud.conf variables into the current environment. This of course fails for some reason and you get a bunch of errors. Worse still, stud source code doesn't work with environment variables. Can someone tell me how you're actually meant to set up stud with init script as it would appear to be completely broken. Maybe I can just disable the init script and call stud from rc.local?

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  • Why is it taking so long to open the Ubuntu Help Center?

    - by Agmenor
    When I click on the Help Center Icon in the 'System' menu, it takes more than a minute to launch the program. More than a minute, for a text only program seeming like a website! All my other programs work fine, and I saw this problem also on other computers. Is there a reason for this? Will it be fixed? I think it is an important issue for beginners. As a response to Scaine, the result of the command software-center is the following: Traceback (most recent call last): File "/usr/share/software-center/update-software-center-agent", line 72, in <module> db = xapian.WritableDatabase(pathname, xapian.DB_CREATE_OR_OVERWRITE) File "/usr/lib/python2.6/dist-packages/xapian.py", line 3195, in __init__ _xapian.WritableDatabase_swiginit(self,_xapian.new_WritableDatabase(*args)) xapian.DatabaseLockError: Unable to acquire database write lock on /home/agmenor/.cache/software-center/software-center-agent.db.tmp: already locked 2011-01-11 19:57:24,495 - softwarecenter.app - INFO - software-center-agent finished with status 1

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  • Recording Available: March 2010 Quarterly Customer Update Webcast

    - by michelle.huff
    Missed the last Quarterly Customer Update Webcast? We discussed several product updates on the March quarterly customer Webcast, including the first phase of the Oracle Content Management 11g release. Some of the highlights include Information Rights Management (IRM) 11g and Imaging and Process Management (I/PM) 11g Overviews. Additionally, we covered I/PM 11g new features, implementation and migration topics that existing customers would like to know. You can find quick links to all the resources I mentioned on the call, as well as links to the presentation and recording details in My Oracle Support from the March 2010 Webcast Resource Links page on OTN.

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  • Java based webservices

    - by java_mouse
    We are working on a big java project and as a second phase in this project, we will have to develop some web services that the clients can call and get or update the data in our database. Though I have been a Java programmer for a while, I have never worked on web services yet. I develop EJBs, data services layer etc but have not worked in web services yet. What are the current standards in developing web services in Java platform? What is the best and recommended way for developing web-services? Any input/link will be appreciated

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  • Database Owner Conundrum

    - by Johnm
    Have you ever restored a database from a production environment on Server A into a development environment on Server B and had some items, such as Service Broker, mysteriously cease functioning? You might want to consider reviewing the database owner property of the database. The Scenario Recently, I was developing some messaging functionality that utilized the Service Broker feature of SQL Server in a development environment. Within the instance of the development environment resided two databases: One was a restored version of a production database that we will call "RestoreDB". The second database was a brand new database that has yet to exist in the production environment that we will call "DevDB". The goal is to setup a communication path between RestoreDB and DevDB that will later be implemented into the production database. After implementing all of the Service Broker objects that are required to communicate within a database as well as between two databases on the same instance I found myself a bit confounded. My testing was showing that the communication was successful when it was occurring internally within DevDB; but the communication between RestoreDB and DevDB did not appear to be working. Profiler to the rescue After carefully reviewing my code for any misspellings, missing commas or any other minor items that might be a syntactical cause of failure, I decided to launch Profiler to aid in the troubleshooting. After simulating the cross database messaging, I noticed the following error appearing in Profiler: An exception occurred while enqueueing a message in the target queue. Error: 33009, State: 2. The database owner SID recorded in the master database differs from the database owner SID recorded in database '[Database Name Here]'. You should correct this situation by resetting the owner of database '[Database Name Here]' using the ALTER AUTHORIZATION statement. Now, this error message is a helpful one. Not only does it identify the issue in plain language, it also provides a potential solution. An execution of the following query that utilizes the catalog view sys.transmission_queue revealed the same error message for each communication attempt: SELECT     * FROM        sys.transmission_queue; Seeing the situation as a learning opportunity I dove a bit deeper. Reviewing the database properties  The owner of a specific database can be easily viewed by right-clicking the database in SQL Server Management Studio and selecting the "properties" option. The owner is listed on the "General" page of the properties screen. In my scenario, the database in the production server was created by Frank the DBA; therefore his server login appeared as the owner: "ServerName\Frank". While this is interesting information, it certainly doesn't tell me much in regard to the SID (security identifier) and its existence, or lack thereof, in the master database as the error suggested. I pulled together the following query to gather more interesting information: SELECT     a.name     , a.owner_sid     , b.sid     , b.name     , b.type_desc FROM        master.sys.databases a     LEFT OUTER JOIN master.sys.server_principals b         ON a.owner_sid = b.sid WHERE     a.name not in ('master','tempdb','model','msdb'); This query also helped identify how many other user databases in the instance were experiencing the same issue. In this scenario, I saw that there were no matching SIDs in server_principals to the owner SID for my database. What login should be used as the database owner instead of Frank's? The system stored procedure sp_helplogins will provide a list of the valid logins that can be used. Here is an example of its use, revealing all available logins: EXEC sp_helplogins;  Fixing a hole The error message stated that the recommended solution was to execute the ALTER AUTHORIZATION statement. The full statement for this scenario would appear as follows: ALTER AUTHORIZATION ON DATABASE:: [Database Name Here] TO [Login Name]; Another option is to execute the following statement using the sp_changedbowner system stored procedure; but please keep in mind that this stored procedure has been deprecated and will likely disappear in future versions of SQL Server: EXEC dbo.sp_changedbowner @loginname = [Login Name]; .And They Lived Happily Ever After Upon changing the database owner to an existing login and simulating the inner and cross database messaging the errors have ceased. More importantly, all messages sent through this feature now successfully complete their journey. I have added the ownership change to my restoration script for the development environment.

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  • How exactly does XNA's SpriteBatch work?

    - by David Gouveia
    To be more precise, if I needed to recreate this functionality from scratch in another API (e.g. in OpenGL) what would it need to be capable of doing? I do have a general idea of some of the steps, such as how it prepares an orthographic projection matrix and creates a quad for each draw call. I'm not too familiar, however, with the batching process itself. Are all quads stored in the same vertex buffer? Does it need an index buffer? How are different textures handled? If possible I'd be grateful if you could guide me through the process from when SpriteBatch.Begin() is called until SpriteBatch.End(), at least when using the default Deferred mode.

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  • Self learning automated movement

    - by Super1
    I am trying to make a small demo in Javascript, I have a black border and a car the car travels randomly and a line is drawn of its trail. When the user click inside the area it creates an object (we'll call this the wall). If the car hits the wall then it goes back 3 paces and tries a different route. When its hit the wall it needs to log down its location so it does NOT make that mistake again. Here is my example: http://jsfiddle.net/Jtq3E/ How can I get the car to move by itself and create a trail?

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