ActionScript 3.0 :: Extend A Class That Is Already Being Extended?
Jul 17, 2009
Ok, I have spent a little time searching and I can't seem to find an answer to my question, maybe I'm asking the wrong question. here's my situation:
I have a document class called Main.as, this class has variables that instantiate a CreateShape.as class that acts as a superclass. The CreateShape.as class has a protected function that is overridden by other classes (I have a CreateCircle, CreateSquare etc). Those CreateCircle etc classes, use extends to extend the CreateShape.as class, and thus have the ability to override the main method (called newShape()).
I have 1 class (that is extending a UIcomponent) that is representing a component. In that component I create different instances of another class that is also a UIComponent but this class doesn't show up in de first class. I see that it is running and that it has the correct hights but I got the feeling that it doesn't show up with this hights. If I trace I see the width and height is 200 X 200 but there is still nothing visible in my component.
public class Example { public function Example () { }[code]............
You can see that the two last classes extend the first one, and both have the 'variable' property. In case that I have an instance of Example and I am sure it is also an ExtendedExample OR AnotherExtendedExample instance, is there some way to access the 'variable' property? Something like
function functionThatReceivesAnExtendedExample (ex:Example):void { if(some condition that I may need) { ex.func()
package{ public class Character{ protected var _hp:uint = 50; //Character Health Points protected var _power:uint = 5; //Damage dealt
[Code].....
I`m instancing a Character and a Player in the Main Timeline, all in frame 1. When I use: ""player.attack(character)"" it works fine by itself.
So I added the if (defender._hp <= 0) this.win() which gives me the following error:
1061: Call to a possibly undefined method win through a reference with static type Character.
"defender" is a Character instance, "this" is a Player instance and "win()" is a Player method. I try to call the Player method inside a Character method using the Player instance adding the "." and his method name
Do I really need to define the win() function in the Character class? Is there a bypass to use a subclass method in a parent class method if it`s called from an instance of the subclass?
I created an flv video player using Flash Builder 4. This "BasicVideoPlayer" project is compiled into a SWC that will be eventually be used to create other video players that extend the functionality. One of the features is a view that appears when the video has finished playing that displays a "Play Again" button. This "Play Again" view has its own class, "BasicPlayAgain", that accepts a graphic asset that is exported from a .fla file that contains all of the graphic/UI assets.
In my new project, "EnhancedVideoPlayer", I'm using the BasicVideoPlayer SWC as a library to create a new video player that will add more functionality to the "Play Again" view; specifically it will add more buttons to that view.The EnhancedVideoPlayer uses a default class that extends the BasicVideoPlayer class. The BasicVideoPlayer class has a member called "playAgainScreen" whose type is BasicPlayAgain. The EnhancedVideoPlayer needs to override the playAgain member and recast it as EnhancedPlayAgain so it can control the new buttons properly.
Let's say Class A has the flash.events.Event imported. Now let's say Class B extends Class A. Why in the hell do i need to import flash.events.Event in Class B? It makes no sens at all to me.
The use of library classes confuses me once again. I have the following situation:
[Code]....
I cannot put in any baseclass when using the class, so I'm forced to remove the baseclass. When using only the class I get a whole bunch of errors don't make any sense at all, and still appear even if I comment out all the code in the Page class. comop_padpagesFavorietenPage.as:7: 1152: A conflict exists with inherited definition com.op_pad.pages:Page.help in namespace public.
Is it possible to dispatch event from class that isnt extended class of MovieClip? I created my own class and put import flash.events.Event; import flash.events.*; but when i call dispatchEvent compiler throws error:"1180: Call to a possibly undefined method dispatchEvent."
If I have a Document class that extends MovieClip, and I want to use it as the basis for another Document class, is it possible to create a subclass that extends the main document class and use that for a different FLA?
For example,
fla1.fla has a document class of MyMainClass: public class MyMainClass extends MovieClip fla2.fla has a document class of MySubClass: public class MySubClass extends MyMainClass
I've tried, but now I'm getting errors that all of my variables that reference stage instances aren't being found.
I have created a class (extends the Event class) for use in one of my projects. If I trace the custom event object in the called function I get 'Event' as the type, but if I trace a TimerEvent, or MouseEvent, etc, I get TimerEvent or MouseEvent... Let me demonstrate:
var c:CustomObject = new CustomObject(); c.addEventListener(CustomEvent.ON_SEND_MESSAGE,fnc); function fnc(e:CustomEvent) {
Say you were importing flash.events.KeyboardEvent and you wanted it to extend the MovieClip class, is this possible? Where you dont have access to the class to just type "extends XXX"
I have my main stage, and I have two objects (blocks), these two objects both extend from the "Block" class. The "Block" class is NOT extended from the Main Class.I would LIKE to call a function, in either the "Block" class or in it's subclasses, from the Main Stage Class. The functions will do slightly different things depending which object you are calling the function (Added different things, and different number of things to an array). What is the best way to implement this?
Is there a way to hide properties or methods of an extended class?Ie, I want most of the extended properties and methods to be accessible but I want to hide others and use my own instead (not just overriding).
I'm having some trouble with using a Document class in Flash CS3 that is an extension of another class. When I do this, I can no longer make references to MovieClips with instance names on the stage.Here's an example. I have a class called Minigame that extends MovieClip and then a class Shooter that extends Minigame. So the relationship looks like:MovieClip <-- Minigame <-- ShooterI want to use Shooter as my Document class in the Flash file Shooter.FLA. However, when I do this, I am unable to directly access any instance names of MovieClips on the stage of Shooter.FLA from Shooter.as. In other words, if I try to write the line:var mc:MovieClip = this.instanceName;in Shooter.as, I get the error:1120: Access of undefined property instanceName.
I'm new to AS3 and I'm having a problem with an extended class that uses a URLRequest. I have a basic class called 'imageLoader' that I use for loading in external images
I'm developing a Rails project that uses authlogic for authentication. And I have a part in that project that is realized with Flex, and I need to know how a user can be authenticated if he or she is logged in or not. I've set up a webservice called UserSessionService and I was trying to get the user who is logged in, but it doesn't work. If I try to get it with UserSession.find, I just get a # as the result (and therefore that's always true).
Here's the UserSessionService.rb:
require 'weborb/context' require 'rbconfig' class UserSessionService def login UserSession.find end end
I tried to extend the UserSessionService class from Authlogic::Session::Base, but that doesn't work either.
when I create my object uniform which is a simple object, I pass it to my UniformObjectProxy.getInstance() static method to get the instance of my objectProxy, ok so far so good.my problem is when I try to bind a property of my objectProxy instance like
the dispatchColorChange handler function is called only once an never again, I had check ChangeWatcher.isWatching() and return false meaning my objectProxy is not binding properly, if I create an objectProxy like
_opc = new ObjectProxy(_uniform); cw:ChangeWatcher = BindingUtils.bindSetter(dispatchColorChange, _opc, data.id);
the binds works just fine, so my thinking is the problem is when I extends the objectProxy class, how is the proper way to do this
My flex3 application downloads XML in e4x format from my web server, and and is left as a bindable XML object locally in my flex3 application. My visual objects then bind to various aspects of the XML object to display the data that I want.My simple program is getting more complicated, and I'd like to extend the XML object and add some functions to it, so I can keep the code that manipulates the XML object separate from my base application. Lets call this new object LoginXML.Can I please get an example of how to extend the XML object in flex3/as3 to create my own custom object with it's own functions. Part of my XML looks like
Just as a technicality, is there ANY object (or anything that can be placed inside of a variable) that does not extend Object?Even the "Class" object extends Object.On a similar note, what is the difference between these two?
[Code]...
I pretty much always use ":Object",but is there any situation where it would be better to use the latter?I also recently found out that there is a difference when using the "as":
I am working on inheritance for the first time. Here is the super class SetBlank.as
Code: import flash.text.*; class SetBlank { public var _textFieldName:TextField; public var _defaultName:String; public function SetBlank(textFieldName:TextField, defaultName:String) { [Code] .....
I can see the trace function working but the method which sets the text field to blank is now working.
Here is what I want to do...extend the String class Code: class example extends String {} and then I want to take things that are already strings and add a function to them which goes through and removes & and turns it back to & am things got some test code for that here
package { import flash.display.Sprite; public class MySprite extends Sprite{
[Code]....
and extend that class, if more than one internal classes are defined:
package { public class MainClass extends MySprite { public function MainClass():void{}
[Code]....
ReferenceError: Error #1065: Variable MainClass is not defined.Note that this only happens (as far as I can tell) when the public class of the package extends another class, and multiple internal classes are defined. The internal classes don't even need to be instanced or referenced to generate the error (the bare-bones code above will error out). If only a single internal class is defined, it works fine (no error). Even if the internal class is instanced.
i've only ever created external .as files that extended a class such as sprite. now i just want to create one that doesn't extend anything and call it from a frame script.
