Essential AS3.0 by O'Rielly

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• O'Reilly book: AS3 essential Question page 29

  Hello

  I was hoping that someone has read or maybe this book by Moock has called «Essential AS3» I'm stuck on page 29, I want to understand what is happening here.

  package zoo {}

  Friend class VirtualPet {}

  petName internal var = "unnamed pet";

  public void VirtualPet (name) {}

  this.petName = name;

  }

  }

  }

  --------------------------

  Maybe it's simple and I'm making it bigger than it is. Please forgive me if I do not mention the correct sentences to the code that I learn.

  The "Unnamed pet" value is the value of the variable to petname and I understand that the code creates an instance via the var function. The restructuring next code [shown in the book don't here] they remove actually "="Unnamed pet";" as I assume that this is redundant since they added the code after him thus showing the reader that it is a placeholder for an idea of the past.

  The constructor function 'this.petName = name.' is shake me. If the variable is defined in the constructor? And "(name)" in the line of code above is the return value? Or it creates a link between the code and the ' = name: "below?

  The line of code "petName internal var ="Unnamed pet";" which is then reduced to "var internal petName;" is it because he is no longer a decisive value and is just a simple local variable needed to help start the constructor function under?

  Thanks for any input... I do my best to pass any info in this book do not confuse myself later.

  Yes, you have. There are several different flavors of variable. The importance of this is the scope or extent of the structure of code, when this variable is accessed. Variables are only containers of storage.

  Variables are defined outside a function so that they can be used in more than just only one function. If you set the variable inside a function, then it will recognize only inside the function. If you give the variable an initial value when you set it, then it has value first. There are times where you want an initial value and when it is not important. For example, if you set a Boolean variable, it is generally important to give an initial value. When you define a variable that will be used as a parameter in a function, it may be less important.

  There are only constructor function in a given class. Think of a class as a set of code that performs a single operation. In this example, VirtualPet made a single instance of a pet. VirtualZoo made on an instance of a zoo, which can contain one or more instances of VirtualPet.

• Very frustrated by scope and stage

  I know that the answer is simple, but I am very frustrated and now three days late test release date. I am relatively new to O.O.P. and AS3. I could only reference and removeChild by index number of scene. I tried to name the instance, globalization of the instance, try the advice of dozens of sites Internet Flash/AS3, read and tried the examples from the aide-memoire AS3, essential AS3, all without resolution. I need to be able to remove objects from several different interval and Reports managers specific stage and follow-up of the depth of the scene objects is not practical. What follows is the only implementation that does not complain on l ' object 'null' due to obvious scope issues.
  
  The child 'number' is added to the scene after the instantiation of the custom object quantity
  
  public void NewNumber (): void {}
  var num:uint=Math.floor(Math.random() * 10); / / number between 0-9
  var number: quantity = new Quantity (dim, num);
  stage.addChild (number);
  }
  
  However, I can't get my KeyDownHandler to remove it to replace with index, which does not help as the other elements must be added and removed from the scene. Quantity generates forms of recursive without simple ways to manipulate so it must be removed, and then reinstantiates. I didn't start address the potential problem of objects previously instantiated not being not deleted memory, but simply the display list so all heads upward in this field would also be appreciated.
  
  Decision 78:
  trace ("Answer.KeyDownFunc:"n"key" ");
  call function to generate the new number random subquan & Start Timer
  stage.removeChildAt (2);
  NewNumber();
  break;
  
  Any help would be a boon. Thanks in advance.
  THEN ADDED THE THOUGHT *.
  I ran the code above with additional track to show what is the name of the instance. In a short time, he climbs into the thousands. Is there a way to:
  
  stage.removeChild (* and somehow use an instance name to provide the argument)?
  
  Example:
  The class declaration
  protected var;
  ...
  public void NewNumber() {}
  ...
  InstanceName = number.name;
  }
  
  ... somewhere in the KeyDownHandler
  trace (InstanceName); Watch chain, for example instance9314
  stage.removeChild (getChildByName (instancename));
  Errors because getChildByName returns null
  
  Sorry, but I am missing just something simple in scope or step or O.O.P.
  
  

  so go ahead and add displayobjects on stage.

• the null value

  I work currently my way through essential AS3 book of C.Moock and is currently seeking to "event listeners" and memory management (if you have a copy page 216). The chapter suggests a butterfly hypothetical game for which to remove stranded headphones. Me being me has emulate the all in order to understand this correctly, which means in this case add flappy butterflies to the scene - (the book suggests just that this is the case). I think that I approached it correctly...? and it all works as required, I have removed the timer listener to the point I destroy / click on the butterfly but don't know about the definition of the new class/object created in the main class of Butterflygame to null - Butterfly trigger a butterfly in Butterflygame function to assign null to Butterfly? who would set them all to null? I would be very grateful if someone could explain in language clear numpty.
  Thank you very much
  François
  

  You probably don't need to keep a reference to the last created butterfly, you don't need a butterfly field in your ButterflyGame class.

• AS3 SWF to MP4

  Hi all

  I got a CS5 AS3 Greensock Player 10 SWF movie that's all the code on frame 1.

  I need to import it to Premiere or After Effects as being my intro to film sequence.

  I need to end up with output MP4 (H.264) at 30 fps.

  What is the best method to get an import of high quality for these programs?

  Thank you

  Jim

  You will need to use an external SWF to AVI/MOV converter. You can search google and find those. Essentially, they run the SWF and capture each frame converting it all into a video. Otherwise Flash can export timeline animations as you've seen code does not export.

• AS2 / AS3 Flash Preloader issue.

  [moved from the AS1/2 forum]

  Hello world

  I'm testing the new capabilities in Flash Pro CS6. And I'm stuck here, as most of my code AS1 / AS2 and when I try to do the coding for AS3 part of my prior loading is more functional. Essentially, the dynamic text not show upward. Maybe if you take a look at my code can you tell me where I'm wrong.

  It's the new AS3 code for my preloaded scene. I created this point to load an image on the 2nd frame. And it works except for the text that is not poster text in the following cases: percent_txt, ofBytes_txt, and totalBytes_txt

  I appreciate any ideas that you can provide to me pls.

  Stop();

  addEventListener (Event.ENTER_FRAME, loaderF);

  function loaderF(e:Event):void {}

  var toLoad: Number = loaderInfo.bytesTotal;

  var loaded: number = loaderInfo.bytesLoaded;

  var total: Number = load/toLoad;

  if(Loaded == toLoad) {}

  removeEventListener (Event.ENTER_FRAME, loaderF);

  gotoAndStop (2);

  } else {}

  preloader_mc.preloaderFill_mc. ScaleX = total;

  preloader_mc.percent_txt. Text = Math.floor(total*100) + "%";

  preloader_mc.ofBytes_txt. Text = load + "bytes."

  preloader_mc.totalBytes_txt. Text = toLoad + "bytes."

  }

  }

  This is the result in the test,

  

  Thank you so much and kind regards!

  Joel.

  First of all, make sure that you embed fonts in the text field or use device fonts. Looks like it's a question of embedding fonts.

• XML and AS3?

  Hello.  I have the following XML data and function in AS3 underneath

  <? XML version = "1.0"? >

  < objects >

  < object Type = "System.IO.FileInfo" >

  < property Name = "PSPath" Type = "System.String" > Microsoft.PowerShell.Core\FileSystem::F:\cakewalk_sonar_x1b_install_ error.jpg < / property >

  < property Name = "PSParentPath" Type = "System.String" > Microsoft.PowerShell.Core\FileSystem::F:\ < / property >

  < property Name = "PSChildName" Type = "System.String" > cakewalk_sonar_x1b_install_error.jpg < / property >

  < property Name = "PSDrive" Type = "System.Management.Automation.PSDriveInfo" > F < / property >

  < property Name = "PSProvider" Type = "System.Management.Automation.ProviderInfo" > < /Pr propr. > Microsoft.PowerShell.Core\FileSystem

  < property Name = "PSIsContainer" Type = "System.Boolean" > false < / property >

  < property Name = "VersionInfo" Type = "System.Diagnostics.FileVersionInfo" > file: F:\cakewalk_sonar_x1b_install_error.jpg

  InternalName:

  OriginalFilename:

  FileVersion:

  FileDescription:

  Product:

  ProductVersion:

  Debug: false

  FIX: false

  Previews: false

  PrivateBuild: false

  SpecialBuild: false

  Language:

  < / property >

  < property Name = "Database name" Type = "System.String" > cakewalk_sonar_x1b_install_error < / property >

  < property Name = "Mode" Type = "System.String" > - a - < / property >

  < property Name = "Name" Type = "System.String" > cakewalk_sonar_x1b_install_error.jpg < / property >

  < property Name = "Length" Type = "System.Int64" > 49143 < / property >

  < property Name = "DirectoryName" Type = "System.String" > F:\ < / property >

  < property Name = "Directory" Type = "System.IO.DirectoryInfo" > F:\ < / property >

  < property Name = "IsReadOnly" Type = "System.Boolean" > false < / property >

  < property Name = "exists" Type = "System.Boolean" > true < / property >

  < property Name = "Name" Type = "System.String" > F:\cakewalk_sonar_x1b_install_error.jpg < / property >

  < property Name = "Extension" Type = "System.String" > .jpg < / property >

  < property Name = "CreationTime" Type "System.DateTime" = > 21/03/2011-20:22:18 < / property >

  < property Name = "CreationTimeUtc" Type "System.DateTime" = > 22/03/2011 12:22:18 AM < / property >

  < property Name = "LastAccessTime" Type "System.DateTime" = > 21/03/2011-20:22:18 < / property >

  < property Name = "LastAccessTimeUtc" Type "System.DateTime" = > 22/03/2011 12:22:18 AM < / property >

  < property Name = "LastWriteTime" Type "System.DateTime" = > 21/03/2011-20:22:18 < / property >

  < property Name = "LastWriteTimeUtc" Type "System.DateTime" = > 22/03/2011 12:22:18 AM < / property >

  < property Name = "Attributes" Type = "System.IO.FileAttributes" > Archive < / property >

  < / object >

  < / object >

  -------------------------------------------------------------------------------------AS3 functions--------------------------

  var urlLoader:URLLoader = new URLLoader();

  function XMLFunc(XMLPath:String):void {}

  urlLoader.load (new URLRequest (XMLPath));

  urlLoader.addEventListener (Event.COMPLETE, onSuccess);

  }

  XMLFunc ("sample_report_short.xml");

  var attNamesList:XMLList=xml.@*;

  function onSuccess(e:Event):void {}

  Var XML = new XML (e.target.data);

  xml.ignoreWhitespace = true;

  trace (xml.descendants ("Property") .@name [15] .toXMLString ());

  trace (xml.children (). (Name()). LocalName is 'Name'));

  }

  What I get as trace output is FullName, but the second trace statement does nothing.  I am trying to trace the content between the tags of the "Display name" property name attribute  I try so essentially to access what 'FullName' in the file XML is equal to.

  Can anyone help?

  I found a tutorial, but could not get that part of it:

  http://www.senocular.com/Flash/tutorials/as3withflashcs3/?page=4#E4X

  use:

  trace (xml... Property. (@Name is "Full name")) ;

• AS3 - function passed as an argument brought bad when it is called

  Hi all

  I'm new to flex. I tried this: http://seancode.blogspot.com/2008/07/flex-injection-passing-function-to.html

  This message essentially has a MyBox component that gets a function as an argument and calls the function on a button click.

  There another component main , which has defined a function func and MyBox as a child and gives the MyBox service.

  The problem is: func accesses the properties of the hand. So when he gets called it is supposed to work at hand , but in my application is running in the scope of MyBox and give a reference to property not found error.

  I read that in AS2, mx.utils.Delegate was used to specify the scope in which a function must run. This has been used to define event listeners. And AS3 is supposed to do this automatically - magic closures/methods. I had no problem setting of event listeners, and they run in the correct scope...

  Please tell me where I'm wrong... There is no delegate to work around this problem now. And I couldn't find anyone else facing this problem in AS3.

  Thanks in advance...

  Hello

  The problem is that you use a function inline instead of a bound method. In this case, when you use an inline function, this function will be the scope of the caller (following the example of the appellant will be to the MyBox component) and not to the scope of the creator (hand). You can find more information about the scopes of service here: http://livedocs.adobe.com/flex/3/html/help.html?content=03_Language_and_Syntax_21.html

  If you do not need the Bindable part, you can work around the problem by using a method/function related:

  (using the same example you provided)

  private function backToViewZero():void {
       viewStack.selectedChild = viewZero
  }
  

  Another way (without throwing the binding mechanism) is to use the method of the function call and specify the thisArg as being the parent (main).

• AS3: How an instance of flvplayback stop playing when you leave its frame in the timeline?

  I created a small theatre program and it is working very well, but I cannot for the life of me understand why it works without additional code.

  I have a timeline with frames 5 and last 4 executives have a different instance of an animation flash (flvplayback) in them: all of them charge a different movie as its source and I don't give instance names to one of them.

  To get to one of these frameworks, there are 4 buttons and the eventlistener to click a button calls a function that specifies which image to go to and stop at the.  Since each flvplayback has autoplay set to 'true', the movie starts to play when you enter its framework.  If I click a different button to get a different picture, this first film stops play and the video in the 2nd starts frame.  I have not any actionscript in saying the first movie to stop and I can't find anything in the AS3 reference that suggests that the flvplayback component could work this way.  Why didn't I tell an flvplayback instance programmatically to stop when I'm out of its frame in the timeline?

  Thank you

  Sean

  If you leave its framework there are more.  But from other postings I've seen, people most often ask why he always plays because they can hear the continuous sound even if they left the frame.  I think in your case what could have to do with you based on components in the adjacent blocks, such that you essentially load a new source in the player.  There is an anomaly MNI Flash where if you place instances of the same object in adjacent frames, the latter inherits the properties of the former, essentially becoming it.  Then you fall into this scenario where essentially the same player is told to change what he is playing.  You could try to stagger the instances with empty frames between and see whether you get similar results.

• Help a non - AS3 programmer

  I m a PHP developer and donot program in AS3, but as you know the developers I understand little AS3 without having read his help. But because I'm not an expert in AS3 I m in trouble now. Please forgive my stupidity.

  I have a fla file, which is essentially a work. The main screen of the flash software looks to below.

  

  After asking 10 questions (it's the end of the work), he calls a file called "shared_assets.swf" (there is a file in the server called "shared_assets.swf", but this isn't the problem). Now my guess is that called "shared_assets.swf" should be in the AS3 script (because there are a lot of other file embedded in swf which are resources I think, rite?), but even after having checked each script, strangely, I don't see any call to 'shared_assets.swf '. Please see the preview below to see all the scripts. I saw all the scripts of ' Actions: frame 1' to ' Actions: frame 207' but there is no clear call to "shared_assets.swf".

  

  My question is simple ' you guys can tell me where the call to 'shared_assets.swf' is be done?

  Thank you very much. Please help me I need to complete my project.

  Based on the upper left of the second picture that show you, it's possible that you use AS1 or AS2 instead of AS3.  You can confirm which version in the Flash of the publication settings section and see which version is specified.  If you use AS1/2, it is possible the code you are looking for is attached to buttons or other objects.  To see if this is the case, you must select the object on the stage, while the Actions panel is open to see if there are any code attached.

  AS3 does not allow to join the code, so all the code will be either in deadlines (peek inside movieclips as well) or separate .as files.

• Help: Editing Simple hierarchy in AS3? !

  Hey everybody,

  This will seem like a beginner question but: I created several websites in simple flash for me (no customer or something like that) in the past, however, I am having a good amount of hard to replicate the hierarchy types / communication I usually use because this will be my first time using AS3.

  My usual process was as follows:

  (1) main timeline contains all main objects as background of site Web, titles, a movieclip menu) and a large window of information movieclip.

  > the default site load essentially as a series of motion tweens of chronology and stops when everything has disappeared: (only one code stop()).

  (2) the Movieclip Menu contains a bunch of nested buttons that are themselves of the movieclips so that they run in place.

  (3) an Information Movieclip has the entire site page nested inside of her in his chronology.

  Now my problem is that I used to use very simple code for each button in the menu movieclip which would basically be: telltarget() Movieclip gotoAndplay() or gotoAndstop() and other information... All that was needed was to tellTarget (_root.InformationMovieclip) {gotoAndplay (21)} ... or something like that...

  My question is: is it possible to do in AS3 which is essentially as simple... (The functions tellTarget and _root, if I understand correctly, seem to no longer exist). I don't have the time to learn the code Web design only and would really like to make a site hobby the way I used to...

  Thank you very much

  -Steve

  You need not any equivalent of tellTarget.  In AS3, if you command an object where you would normally use tellTarget, you just use the name of the instance of the object to target.  The equivalent of using a '_root' reference is to use MovieClip (root) in most cases...

  So, if you used...

  tellTarget (_root.InformationMovieclip) {gotoAndplay (21)}

  The AS3 equivalent who might be...

  MovieClip (root). InformationClip.gotoAndPlay (21);

• Reflection in AS3

  Hello
  I am familiar with Flex Builder, and I think it's a fantastic software. I come from the world of the .NET Framework and I'm just learning to use reflection in this context. Here's my question anyway.
  
  I want ActionScript3 to behave like the following: instantiate a class from an external file, when I don't know the two class name and name of file at compile time.
  For example, the application loads a text file (generated runtime) with the names of classes and SWC files. It then creates a menu, where each button loads the component specified in the file.
  
  In the .NET Framework, reflection allows me. I know the name of the DLL and the name of the class as strings, and I can use the System.Reflection.Assembly dynamic link to the DLL and load the class. Of course I get exception in case something goes wrong (missing DLL, class undeclared, etc.).
  
  I don't want to use SWFLoader, because I know I can't pass parameters to the constructor.
  
  Is it possible to do something like. Reflection of NET in AS3?
  
  Thank you

  SWFLoader is your best chance here as the SWF is essentially the equivalent of the .NET assembly.

  You can pass the params for the loaded SWF file. Here is a link to livedocs that shows you how:

  Using SWFLoader

  In this example, they load the swf file using @embed. For my tests, I just put in the path of the file (i.e. "C:\\development\\... (' etc.)

  The other gotcha is that the example has this strange 'local()' and I have wondered for a while what it was. But the responsible application class is local.mxml, which means that you must know the name of the loaded application class. But if you dynamically load without knowing the name of class, which is obviously the pants. Instead, I derived the loaded app from a base class that is known to both the container application and the responsible application. Then you have a kind of "Façade" for all your uploaded components (search for façade as a model of web design). You can then reference all your applications loaded through the façade class.

  Hope that makes sense - I can actually send you my test application if you want... :-D

• [AS3] Losing my religion: subclassing vs composition

  I've been so far a devout disciple of compositing a graphic instance into a class in all cases, rather than make my class extends MovieClip. It is true that I was a piker at AS2 and only now that I am cranking on AS3 I consider myself worthy to call myself a beginner OOP programmer. But I bought all the reasons, and if I were still making AS2 apps, I could stay in this camp.
  
  But lately my devotion has been shaken, and now I am seriously considering extending (and then subclassing from) MovieClip or Sprite when any class that has a visual component. Whereas before I would always compose in a MC instance, almost never do inherits everything except my own superclass my class and implement interfaces, polymorphism, now I think I will extend well that still implement interfaces for the usual reasons. Still, I also plan to be a follower of the composition of all other ways - I like composition over inheritance. As I lay not MC for classes that have no graphical components, such as components of the logic of the game. (I make games and other interactive entertainment applications, for distribution in the browser).
  
  Can I please be informed by coders better than me as to the wisdom or folly of my change in attitude?
  
  Here are a few reasons why my mind is changing; Please feel free to refute or support one of these:
  
  -Changes between AS2 and AS3 make the downside of subclassing MC/Sprite lower before. I'll leave a lot more informed people come up with good examples, but seems to be the explicit nature of the addition of an object to the display list - the General hit being an MC is small (nonexistent?) if it is not on the list.
  
  -Colin Moock, in his seminal book "Essential ActionScript 2" advocates composition - see his large MVC example in which his view class, although almost entirely Visual in function, did not extend MC but rather composite MC. However, in all also impressive AS3 Moock book, all of his examples now seem to use the extension. I really admire Moock then gives me a new perspective.
  
  -All the best practices from Adobe and the examples use extension, that almost all the code samples, I see in other useful forums. I'm not blindly run with the crowd, but I think that I would get better feedback on my code of my peers so I follow suit.
  
  -All the AS3 Flash components seem to use the extension, and indeed, AS3 itself is strongly focused on the legacy rather than based on the composition, for understandable reasons.
  
  I am probably missing a lot and bad indicating a large part of what is there, but I hope you get the idea.
  
  Yet again I ask my peers better: now, what are the arguments for and against extending MC or Sprite for a visually represented classes in AS3? Any comments would be very appreciated.

  For all those who followed this saga breathtaking, Colin Moock generously responded via his blog when I wrote for him. What a guy!

  Find the answer here:
  http://www.Moock.org/blog/archives/000248.html

• is there an app CSPAN for the AppleTV? Seems reasonable for Apple to provide one as a municipal public service essential.

  is there an app CSPAN for the AppleTV? Seems reasonable for Apple to provide one as a municipal public service essential.

  It is an application provided by C-SPAN, no Apple. Check and see if there is a C-SPAN app in the app store for your iPhone/iPad. You can then use home sharing, if the application permits.

  Good day.

• My thunderbird (windows 8) essentially has stopped working. More than one minute to open an email - all other functions have similar delays. What should I do?

  For some reason, thunderbird (windows 8) essentially has stopped working. More than one minute to open an email - all other functions have similar delays. I tried to archive, but I get a message that says that a script has stopped working. He does the same in thunderbird safe mode. My old computer (XP) works very well. I can't find my profiles on windows 8 to rebuild the database world.

  Follow-up: McAfee was the problem. I contacted them via chat. Remotely, they took control of my computer and changed the settings. TBird works fine now.

  Thank you for all your help.