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  • Shared Object Not saving the level Progress

    - by user3536228
    I am making a flash game in which i have a variable levelState that describes the current level in which user has entered I am using SharedObject to save the progress but it does not do so first i declred a clas level variable private var levelState:Number = 1; private var mySaveData:SharedObject = SharedObject.getLocal("levelSave"); in the Main function i am checking if it is a first run of the game like below if (mySaveData.data.levelsComplete == null) { mySaveData.data.levelsComplete = 1; } and in a function where the winning condition is checked so that levelState could be increased i am usin this sharedobject to hold the value of levelState if (/*winniing condition*/) levelState++; mySaveData.data.levelsComplete = levelState; mySaveData.flush(); setNewLevel(levelState); } but when i play the game clear a level and again run the game it does not start from that level it starts from beginning.

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  • Can GJK be used with the same "direction finding method" every time?

    - by the_Seppi
    In my deliberations on GJK (after watching http://mollyrocket.com/849) I came up with the idea that it ins not neccessary to use different methods for getting the new direction in the doSimplex function. E.g. if the point A is closest to the origin, the video author uses the negative position vector AO as the direction in which the next point is searched. If an edge (with A as an endpoint) is closest, he creates a normal vector to this edge, lying in the plane the edge and AO form. If a face is the feature closest to the origin, he uses even another method (which I can't recite from memory right now) However, while thinking about the implementation of GJK in my current came, I noticed that the negative direction vector of the newest simplex point would always make a good direction vector. Of course, the next vertex found by the support function could form a simplex that less likely encases the origin, but I assume it would still work. Since I'm currently experiencing problems with my (yet unfinished) implementation, I wanted to ask whether this method of forming the direction vector is usable or not.

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  • If you need more than 3 levels of indentation, you're screwed?

    - by jokoon
    Per the Linux kernel coding style document: The answer to that is that if you need more than 3 levels of indentation, you're screwed anyway, and should fix your program. What can I deduct from this quote? On top of the fact that too long methods are hard to maintain, are they hard or impossible to optimize for the compiler? I don't really understand if this quote encourages better coding practice or is really a mathematical / algorithmic sort of truth. I also read in some C++ optimizing guide that dividing up a program into more function improves its design is a common thing taught at school, but it should be not done too much, since it can turn into a lot of JMP calls (even if the compiler can inline some methods by itself).

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  • "Whole-team" C++ features?

    - by Blaisorblade
    In C++, features like exceptions impact your whole program: you can either disable them in your whole program, or you need to deal with them throughout your code. As a famous article on C++ Report puts it: Counter-intuitively, the hard part of coding exceptions is not the explicit throws and catches. The really hard part of using exceptions is to write all the intervening code in such a way that an arbitrary exception can propagate from its throw site to its handler, arriving safely and without damaging other parts of the program along the way. Since even new throws exceptions, every function needs to provide basic exception safety — unless it only calls functions which guarantee throwing no exception — unless you disable exceptions altogether in your whole project. Hence, exceptions are a "whole-program" or "whole-team" feature, since they must be understood by everybody in a team using them. But not all C++ features are like that, as far as I know. A possible example is that if I don't get templates but I do not use them, I will still be able to write correct C++ — or will I not?. I can even call sort on an array of integers and enjoy its amazing speed advantage wrt. C's qsort (because no function pointer is called), without risking bugs — or not? It seems templates are not "whole-team". Are there other C++ features which impact code not directly using them, and are hence "whole-team"? I am especially interested in features not present in C. Update: I'm especially looking for features where there's no language-enforced sign you need to be aware of them. The first answer I got mentioned const-correctness, which is also whole-team, hence everybody needs to learn about it; however, AFAICS it will impact you only if you call a function which is marked const, and the compiler will prevent you from calling it on non-const objects, so you get something to google for. With exceptions, you don't even get that; moreover, they're always used as soon as you use new, hence exceptions are more "insidious". Since I can't phrase this as objectively, though, I will appreciate any whole-team feature. Appendix: Why this question is objective (if you wonder) C++ is a complex language, so many projects or coding guides try to select "simple" C++ features, and many people try to include or exclude some ones according to mostly subjective criteria. Questions about that get rightfully closed regularly here on SO. Above, instead, I defined (as precisely as possible) what a "whole-team" language feature is, provide an example (exceptions), together with extensive supporting evidence in the literature about C++, and ask for whole-team features in C++ beyond exceptions. Whether you should use "whole-team" features, or whether that's a relevant concept, might be subjective — but that only means the importance of this question is subjective, like always.

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  • MouseEvent.CLICK not working? (AS3)

    - by Jake
    ok so here's my code in AS3, I'd like to know why when i actually click on the picture, nothing happens. And if any of you have great tutorial of what to learn after classes/functions in AS3, let me know =D : package { import flash.display.Bitmap; import flash.display.Sprite; import flash.display.Shape; import flash.events.MouseEvent; public class Main extends Sprite { [Embed(source="../Pics/Picture.png")] private var HeroClass:Class; private var hero:Bitmap = new HeroClass(); public function Main():void { addChild(hero); hero.addEventListener(MouseEvent.CLICK, onClick); function onClick(e:MouseEvent):void { trace("hey"); hero.visible = false; } } } }

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  • How can I spawn a sprite based on a condition after the game starts?

    - by teddyweedy
    How do I spawn a sprite anytime later in the game when the game starts? I'm using FlashDevelop with Flixel. I did try it in override public function create(): void. It works only in the beginning. I try it using if (FlxG.score == 1) but it doesn't work. I also tried it in override public function update(): void. It works and it is moving but it leaves a sprite making it a multi-sprite. I also did try FlxGroup but to no avail.

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  • How to write this kind of java source in clojure. [closed]

    - by tikky
    I want to know how to write a clojure code by looking at a java code like this. import xxxxxx import com.vaadin.terminal.gwt.server.AbstractApplicationServlet; public class Clojure4Vaadin extends AbstractApplicationServlet { @Override protected Class <? extends Application > getApplicationClass() throws ClassNotFoundException { return Application.class; } @Override protected Application getNewApplication(HttpServletRequest request) throws ServletException { try { RT.load(getServletConfig().getInitParameter("script-name"), true); //run Lisp function return (Application)RT.var(getServletConfig().getInitParameter("package-name"),getServletConfig().getInitParameter("function-name")).invoke(new String[0]); } catch (Exception e) { throw new ServletException(e); } } } I need to write a code clojure code which can do the sane thing that this java code can do.

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  • Vocabulary: Should I call this apply or map?

    - by Carlos Vergara
    So, I'm tasked with organizing the code and building a library with all the common code among our products. One thing that seems to happen all the time and I wanted to abstract is posted below in pseudocode, and I don't know how to call it (different products have different domain specific implementations and names for it) list function idk_what_to_name_it ( list list_of_callbacks, value common_parameter ): list list_of_results = new list for_each(callback in list_of_callbacks) list_of_results.push(callback(common_parameter)) end for_each return list_of_results end function Would you call this specific construct a list ListOfCallbacks.Map( value value_to_map) method or would it better be value Value.apply(list list_of_callbacks) I'm really curious about this kind of thing. Is there a standard guide for this stuff?

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  • Overview of XSLT

    - by kaleidoscope
    XSLT (Extensible Stylesheet Language Transformations) is a declarative- XMLbased language used for the transformation of XML documents into other XML documents. Using XSLT , the original document does not changed; rather, a new document is created based on the content of an existing one. XSLT is developed by the World Wide Web Consortium (W3C).   Using XSLT we can transform source xml file into another xml file, word file or Excel file.    XSLT Functions : -   There are the following built - in XSLT functions :   Name Description current() Returns the current node document() Used to access the nodes in an external XML document element-available() Tests whether the element specified is supported by the XSLT processor format-number() Converts a number into a string function-available() Tests whether the function specified is supported by the XSLT processor generate-id() Returns a string value that uniquely identifies a specified node key() Returns a node-set using the index specified by an <xsl:key> element system-property() Returns the value of the system properties unparsed-entity-uri() Returns the URI of an unparsed entity   For more information –   http://www.w3schools.com/xsl/default.asp   Technorati Tags: Ritesh, Overview of XSLT

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  • Distributed cache and improvement

    - by philipl
    Have this question from interview: Web Service function given x static HashMap map (singleton created) if (!map.containsKey(x)) { perform some function to retrieve result y map.put(x, y); } return y; The interviewer asked general question such as what is wrong with this distributed cache implementation. Then asked how to improve on it, due to distributed servers will have different cached key pairs in the map. There are simple mistakes to be pointed out about synchronization and key object, but what really startled me was that this guy thinks that moving to database implementation solves the problem that different servers will have different map content, i.e., the situation when value x is not on server A but on server B, therefore redundant data has to be retrieved in server A. Does his thinking make any sense? (As I understand this is the basic cons for distributed cache against database model, seems he does not understand it at all) What is the typical solution for the cache growth issue (weak reference?) and sync issue (do not know which server has the key already cached - use load balancing)? Thanks

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  • How to CURL and avoid timeout death (Twitter Down) [migrated]

    - by David
    Twitter is down right now, and one of my site's home pages relies on getting data from Twitter (relies is the problem - it should be more of an accessory feature, as it just shows follow count from its feed). Here's the code in question: function socials_Twitter_GetFollowerCount($username) { $method = function () use ($username) { return file_get_contents('https://api.twitter.com/1/users/show.json?screen_name='.$username.'&include_entities=true'); }; $json = cache('bmdtwitter', 3600, $method, false); $json = json_decode($json, true); return intval($json['followers_count']); } What is a good way to make it so if Twitter is down (or not responsive for some reasonable amount of time), our site doesn't appear to be down (I think the timeout maybe defaulting to 30-60 seconds or more).

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  • Bitmap rotation jitter around pivot

    - by Manderin87
    I am working on a asteriods clone and I have the ship graphic loaded as a 96x96 bitmap. When the player rotates the ship I rotate the bitmap by degree (float). rotation function: if(m_Matrix == null) { m_Matrix = new Matrix(); } else { m_Matrix.reset(); } m_Matrix.setRotate(degree, m_BaseImage.getWidth() / 2, m_BaseImage.getHeight() / 2); m_RotatedImage = Bitmap.createBitmap(m_BaseImage, 0, 0, m_BaseImage.getWidth(), m_BaseImage.getHeight(), m_Matrix, true); draw function: m_Paint.setAntiAlias(true); m_Paint.setFilterBitmap(true); m_Paint.setDither(true); canvas.drawBitmap(m_RotatedImage, (int) posX - m_RotatedImage.getWidth() / 2, (int) posY - m_RotatedImage.getHeight() / 2, m_Paint); When the bitmap is drawn, the bitmap jitters slightly around the pivot. Can anyone fix or tell me why the bitmap is jittering around the pivot? It needs to be smooth.

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  • Replace broken image with noimage icon using Jquery

    - by hmloo
    Sometimes when the image isn't available on server, the web page will show a broken image. so we can display a "no image available" image for good user experience. I will implement it using Jquery. $(document).ready(function() { $("img").error(function() { $(this).hide(); }) .attr("src", "noimage.jpg"); }); Please note that we must first hide the broken image, or else even if we set the src to noimage, it still can not show  noimage icon.

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  • Using Minified Page Specific JS [migrated]

    - by Mike C
    I've been working on a rather large scale project which makes use of a number of different pages with some very specific Javascript for each of them. To lessen load times, I plan to minify it all in to one file before deploying. The problem is this: how should I avoid launching page specific JS on pages which don't require it? So far my best solution has been to wrap each page in some additional container <div id='some_page'> ...everything else... </div> and I extended jQuery so I can do something like this: // If this element exists when the DOM is ready, execute the function $('#some_page').ready(function() { ... }); Which, while kind of cool, just rubs me the wrong way.

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  • MOSSt 2010 Hosting :: Dialog Platform in SharePoint 2010 & How to Open the Edit Form Dialog for List Item

    - by mbridge
    One of the New User Interface Platforms in SharePoint 2010 is ‘The Dialog Platform’ A dialog is essentially a <div> which gets visible on demand and renders the HTML using a background overlay creating a modal dialog like user experience. We can show an existing div from within the page or a different page using a URL inside the dialogs. When we pass the URL to the dialog it looks for the Querystring parameter “IsDlg=1”. If this parameters exists than it would dynamically load the "/_layouts/styles/dlgframe.css” file. This file overrides the “s4-notdlg” class items as “display:none”, which means that all items with this class would not get displayed in Dialog Mode.  So if we go to the v4.master page we can see that this class is used by the Ribbon control to hide the ribbon when in dialog mode: How to open the Edit Form Dialog for List Item: In SharePoint 2010 The URL for opening the Edit Form of any list item looks like something like this : http://intranet.contoso.com/<SiteName>/Lists/<ListName>/EditForm.aspx?ID=1&IsDlg=1 ID is the list item row identifier and as discussed above the IsDlg is for the dialog mode. Now to open a dialog we need to use the SP.UI.ModalDialog.showModalDialog method from the ECMAScript Client Object model and pass in the url of the page, width & height of the dialog and also a callback function in case we want some code to run after the dialog is closed. <script type="text/javascript">          //Handle the DialogCallback callback               function DialogCallback(dialogResult, returnValue){               }             //Open the Dialog           function OpenEditDialog(id){             var options = { url:&quot;http://intranet.contoso.com/<SiteName>/Lists/<ListName>/EditForm.aspx?ID=&quot; + id + &quot;&amp;IsDlg=1&quot;,              width: 700,              height: 700,              dialogReturnValueCallback: DialogCallback              };             SP.UI.ModalDialog.showModalDialog(options);           } </script> The .js files for the ECMAScript Object Model (SP.js, SP.Core.js, SP.Ribbon.js, and SP.Runtime.js ) are installed in the %ProgramFiles%\Common Files\Microsoft Shared\web server extensions\14\TEMPLATE\LAYOUTS directory. Here is a good MSDN link explaining the Client Object Model Distribution and Deployment options available in SharePoint 2010 and this is the lowest costSharePoint 2010 Provider.

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  • "more than 3 levels of indentation, you're screwed" How should I understand this quote ?

    - by jokoon
    The answer to that is that if you need more than 3 levels of indentation, you're screwed anyway, and should fix your program. What can I deduct from this quote ? On top of the fact that too long methods are hard to maintain, are they hard or impossible to optimize for the compiler ? I don't really understand if this quote encourages better coding practice or is really a mathematical/algorithmic sort of truth... I also read in some C++ optimizing guide that dividing up a program into more function improves its design is a common thing taught at school, but it should be not done too much, since it can turn into a lot of JMP calls (even if the compiler can inline some methods by itself).

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  • What's Your Method of not forgetting the end brackets, parentheses

    - by JMC Creative
    disclaimer: for simplicity sake, brackets will refer to brackets, braces, quotes, and parentheses in the couse of this question. Carry on. When writing code, I usually type the beginning and end element first, and then go back and type the inner stuff. This gets to be a lot of backspacing, especially when doing something with many nested elements like: jQuery(function($){$('#element[input="file"]').hover(function(){$(this).fadeOut();})); Is there a more efficient way of remembering how many brackets you've got open ? Or a second example with quotes: <?php echo '<input value="'.$_POST['name'].'" />"; ?>

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  • Is there a phrase or word to describe an algorithim or program is complete in that given any value for its arguments there is a defined outcome?

    - by Mrk Mnl
    Is there a phrase or word to describe an algorithim or programme is complete in that given any value for its arguments there is a defined outcome? i.e. all the ramifications have been considered whatever the context? A simple example would be the below function: function returns string get_item_type(int type_no) { if(type_no < 10) return "hockey stick" else if (type_no < 20) return "bulldozer" else return "unknown" } (excuse the dismal pseudo code) No matter what number is supplied all possibiblites are catered for. My question is: is there a word to fill the blank here: "get_item_type() is ______ complete" ? (The answer is not Turing Complete - that is something quite different - but I annoyingly always think of something as "Turing Complete" when I am thinking of the above).

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  • wordpress get content main menu

    - by eca_arpit
    I added a menu page named "Home" on wp-admin. It was added successfully. when i click this home menu then it display nothing.Now i want to display content of a page suppose Page_id=15 on right side(which is empty after clicking home). 15 number page has php codes and uses a template also...is it possible to display contents..i wrote following code...if any confusion i can explain more..plz help me out.. i wrote this in a plugin. add_action('admin_menu', 'Home'); function Home() { add_menu_page('My Plugin Options', 'Home', 'manage_options', 'my-unique-identifier', 'content'); } function content() { if (!current_user_can('manage_options')) { wp_die( __('You do not have sufficient permissions to access this page.') ); } $page_id = 15; $header_content = get_page( $page_id ); echo apply_filters('the_content', $header_content-post_content); }

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  • AS3 - At exactly 23 empty alpha channels, images below stop drawing

    - by user46851
    I noticed, while trying to draw large numbers of circles, that occasionally, there would be some kind of visual bug where some circles wouldn't draw properly. Well, I narrowed it down, and have noticed that if there is 23 or more objects with 00 for an alpha value on the same spot, then the objects below don't draw. It appears to be on a pixel-by-pixel basis, since parts of the image still draw. Originally, this problem was noticed with a class that inherited Sprite. It was confirmed to also be a problem with Sprites, and now Bitmaps, too. If anyone can find a lower-level class than Bitmap which doesn't have this problem, please speak up so we can try to find the origin of the problem. I prepared a small test class that demonstrates what I mean. You can change the integer value at line 20 in order to see the three tests I came up with to clearly show the problem. Is there any kind of workaround, or is this just a limit that I have to work with? Has anyone experienced this before? Is it possible I'm doing something wrong, despite the bare-bones implementation? package { import flash.display.Sprite; import flash.events.Event; import flash.display.Bitmap; import flash.display.BitmapData; public class Main extends Sprite { public function Main():void { if (stage) init(); else addEventListener(Event.ADDED_TO_STAGE, init); } private function init(e:Event = null):void { removeEventListener(Event.ADDED_TO_STAGE, init); // entry point Test(3); } private function Test(testInt:int):void { if(testInt==1){ addChild(new Bitmap(new BitmapData(200, 200, true, 0xFFFF0000))); for (var i:int = 0; i < 22; i++) { addChild(new Bitmap(new BitmapData(100, 100, true, 0x00000000))); } } if(testInt==2){ addChild(new Bitmap(new BitmapData(200, 200, true, 0xFFFF0000))); for (var j:int = 0; j < 23; j++) { addChild(new Bitmap(new BitmapData(100, 100, true, 0x00000000))); } } if(testInt==3){ addChild(new Bitmap(new BitmapData(200, 200, true, 0xFFFF0000))); for (var k:int = 0; k < 22; k++) { addChild(new Bitmap(new BitmapData(100, 100, true, 0x00000000))); } var M:Bitmap = new Bitmap(new BitmapData(100, 100, true, 0x00000000)); M.x += 50; M.y += 50; addChild(M); } } } }

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  • arrays format (Javascript)

    - by João Melo
    i have a list of users, with minions, something like this: User52: minion10 minion12 User32: minion13 minion11 i've been keeping in an array where the "location" is the id, like this: Users: [52]User minions: [10]minion [12]minion [32]User minions: [13]minion [11]minion so i can access them easily like this: user[UserID].minions[MinionID] (ex: user[32].minions[11]) but when i print it or send it by json i get something like this: {,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,minion,,,,,,,,,,,,,,minion} but should i keep using like this or should i change to something like this: User = function(){ this.minions = ...; this.getMinion = function(value){ for(var m in this.minions){ if(this.minions[m].id == value){ return this.minions[m]; break; } } } } and get it like this: user.getMinion(MinionID); Question: i get better performance using a "short" array but using loops every time i need a minion, or using "long" arrays, but no need for loop and getting values directly from the id "name"?

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  • How to run/test JavaScript? [closed]

    - by user702
    I'm reading David Flanagan's "JavaScript: The Definitive Guide, 6th ed". It only actually tells users how to run JS code on page 311, where users are told of the following solutions: "Client-side JavaScript code is embedded within HTML documents in four ways: Inline, between a pair of <script> and </script> tags From an external file specified by the src attribute in a <script> tag In an HTML event handler attribute, such as onclick or onmouseover In a URL that uses the special javascript: protocol." I was wondering what professional JS developers use to write and test their code: Do they use a good text editor with syntax high-lighting + autocompletion, hit F5 in the browser to reload the page every time they make a change, and use some add-on in the browser to investigate errors? Or are there full-fledged IDE's similar to MS VisualStudio for non-web languages?

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  • Write a program using 3 threads, one prints 10 'A's and the second prints 'B's and the third prints 10 'C's with synchrornization

    - by user132967
    Iam try to implement this questions using threads and mutex this is my code : include include include include include define Num_thread 3 pthread_mutex_t lett[Num_thread]; void Sleep_rand(double max) { struct timespec delai; delai.tv_sec=max; delai.tv_nsec=0; nanosleep(&delai,NULL); } void *Print_Sequence(); int main() { int i; pthread_t tid[Num_thread];// this is threads identifier for(i=0;i<Num_thread;i++) pthread_mutex_init(&lett[i],0); for(i=0;i<Num_thread;i++) { printf("i=%d\n",i); /* create the threads / pthread_create(&tid[i], / This variable will have the thread is after successful creation / NULL, / send the thread attributes / Print_Sequence, / the function the thread will run / &i/ send the parameter's address to the function */); } /* Wait till threads are complete and join before main continues */ for (i = 0; i pthread_join(tid[i], NULL); } return 0; } /* The thread will begin control in this function */ void Print_Sequence(void param) { int i,j=(int)param; printf("j=%d\n",(*j)); int max; pthread_mutex_lock(&lett[0]); pthread_mutex_lock(&lett[1]); for (i = 1; i <= 10; i++) { max=(int) (8*rand()/(RAND_MAX+1.0)); Sleep_rand( max); printf("A"); } pthread_mutex_unlock(&lett[0]); pthread_mutex_lock(&lett[2]); for (i = 1; i <= 10; i++) { max=(int) (2*rand()/(RAND_MAX+1.0)); Sleep_rand( max); printf("B"); } for (i = 1; i <= 10; i++) { max=(int) (15*rand()/(RAND_MAX+1.0)); Sleep_rand( max); printf("C"); } pthread_mutex_unlock(&lett[1]); pthread_mutex_unlock(&lett[2]); pthread_exit(0); } and the o/p is like : AAAAAAAAAABBBBBBBBBBCCCCCCCCCCAAAAAAAAAABBBBBBBBBBCCCCCCCCCCAAAAAAAAAABBBBBBBBBBCCCCCCCCCC COULD ANYONE PLEASE EXPLAIN WHAT IS THE WRONG WITH CODE ??

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  • How to get nicer error-messages in this bash-script?

    - by moata_u
    I'm trying to catch any error when run a command in order to write a log-file / report I've tried this code: function valid (){ if [ $? -eq 0 ]; then echo "$var1" ": status : OK" else echo "$var1" ": status : ERROR" fi } function save(){ sed -i "/:@/c connection.url=jdbc:oracle:thin:@$ip:1521:$dataBase" $search var1="adding database ip" valid $var1 sed -i "/connection.username/c connection.username=$name" #$search var1="addning database SID" valid $var1 } save The output looks like this: adding database ip : status : OK sed: no input file But I want it to look like this: adding database ip : status : OK sed: no input file : status : ERROR" or this: adding database ip : status : OK addning database SID : status : ERROR" I've been trying, but it's not working with me. :(

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