With this code
function someFunction(classParam:Class):Boolean
{
// how to know if classParam implements some interface?
}
i.e. Comparing classParam with IEventDispatcher interface
[Code]...
There is a way that DOES NOT USE describeType or creates a new operator?
Is there a way to generate an instance of a class that implements an interface based on the name of the class?
I am trying:
var ClassReference:Object = getDefinitionByName("movement.OuterSpaceMovement") as IMovement;
var m:IMovement = new ClassReference as IMovement;
trace("startup..." + m);
-But I am getting an error message ReferenceError: Error #1065 (OuterSpaceMovement) not defined.
I have several classes that implement the same interface (IMovement) but I need to be able to generate new instances of these classes and then pass these instances as a datatype (IMovement datatype) to other classes...
So then I tried:
var ClassReference:Class = getDefinitionByName("OuterSpaceMovement") as Class;
var m:IMovement = new ClassReference() as IMovement;
and this doesn't seem to work...but the following
var m:IMovement = new OuterSpaceMovement();
I'm trying to load a RSL library into a flash animation developed with Flash CS5 IDE, that extends a custom class and implements an interface. I have reduced the problem to the simplest setup and find that I can have my main class extend another class or implement an interface, but not do both at the same time if I want to load an RSL.I have a very simple class to extend:
import flash.display.Sprite;
public class MySprite extends Sprite
{[ code]...........
but if I want both I get the VerifyError: Error #1014 with MySprite not found and ReferenceError: Error #1065.
How can I test if a class reference implements an interface? Note that the is and instanceof operators do not work with Class references.
Example:
public function set someClassref(value:Class):void
{
if(value is IMyInterface)[code]........
Not sure if this is possible but I would like to reflect a swf or swc file selected by the user at runtime to find any classes that implement a certain interface. Can this be done or do you actually need a reference to the class you want to reflect using describeType();
Note - this would be done in actionscript.
In ActionScript 3.0, there are a few ways to check a class's extension. For example, if I want to know of a custom class extends Sprite I could use the is operator:
trace(MyClass is Sprite);
Or I could use flash.utils.getQualifiedSuperclassName:
trace(getQualifiedSuperclassName(MyClass));
I would like to accept a class as an argument and check to see if the passed class implements an certain interface. Is there an equally simple or common way to check if my custom class adheres to an interface? Perhaps something like:
trace(MyClass implements IMyInterface);
recently, I research for the collection framework, and find LinkedSet(AS3Commons collection framework,it is a good opensource framework) written in ActionScript, but it can't use as dataProvider in ComboBox or DataGrid, because only implements ICollectionView can use as dataProvider. So I want to try if a class implements ICollectionView can work or not. I know Flex has build-in class implements ICollectionView, but I only want to define a class not use build-in class. The class as simple as possible.(can work is enough)
View 1 RepliesAnd i cant figure it out.the "my.fla.class"content looks like this
Code:
package my_fla
{
[code].....
I'm trying to build a shuffle function that somebody gave me into my card game. I two external .as classes; one is Shuffle.as, which is my document class, and the other is card.as. I'm building the shuffling function into Shuffle.as. I think I'm getting close to making it work, but there are some problems. I keep getting this error message: "5000: The class 'Shuffle' must subclass 'flash.display.MovieClip' since it is linked to a library symbol of that type." Here is my code. Shuffle.as code
[Code]....
i am working on a project where i have some common code which i import in different movie clips and different files the code is in actionscript 2 in an external .as file. this is not a class its just a bucnh of functions and temporary variables.Problem is when i use the check syntax button or auto format button i get the following error."ActionScript 2.0 class scripts may only define class or interface constructs."this used to work fine in flash 8 but it always gives this error since i started using flash 9.the code works fine too. its just that my auto format button and the check syntax doesn't work.
View 5 RepliesI am overriding the addItem() function of an array collection and I would like to detect if the added item implements a particular interface. Previously I used the, is operator to detect the class type, but now that I am using an interface for classes I would rather test to see if the object implements the interface. I expect I could just try and cast the object as the interface and see if it's not null. Is this the best way to do it? I could also just create a new addFunction() that only accepts objects of the interface type.
View 2 RepliesIs there any non-hacky way to determine wether a class' superclass implements a particular interface?
For example, assume I've got:
class A extends EventDispatcher implements StuffHolder {
protected function get myStuff():Stuff { ... };
public function getStuff():Array {
[Code].....
How could I perform that super is StuffHolder test in a way that, well, works? In this case, it always returns true.
I'm using a library that has a function that returns an instance of some class Engine.
I'd like to tack on some interfaces to Engine, so I subclass it class InterfacedEngine extends Engine implements AwesomeInterface. but when I change the code that uses the classes from this:
var engine:Engine = generateEngine();
to this: var interfacedEngine:InterfacedEngine = generateEngine();
It gives me a runtime error (elision mine):
TypeError: Error #1034: Type Coercion failed: cannot convert ...::Engine@1bc2bf11 to ....InterfacedEngine.
What about AS3 classes am I misunderstanding?
i have incuded an AS file in my fla. But is gives an error ball.as: Line 73: ActionScript 2.0 class scripts may only define class or interface constructs.
[Code]...
I want to subclass "superClass" and override one of it's functions.
[Code].....
The problem is that the "superClass" is loaded from a swf. I do not have a reference to the class definition in my project. Is there a way to do something like below?
[Code].....
So I am trying to create a document class for my program, and I know all the code is correct because I already have the program working.I am currently trying to rebuild the program, and I simply copy and pasted all the working code into my new program.I have 2 document classes, and when I run the program i get an error, and I don't know how to fix it. It says "The class 'ball' must subclass 'flash.display.MovieClip' since it is linked to a library symbol of that type."I don't understand why it isn't working now, is there some setting that I need to turn on to get it to work? I do have the line of code: import flash.display.MovieClip;
View 3 RepliesI've made a movie clip with buttons in it called 'myContent'. I want each button to reference a different video in the video player on the main stage. This movie clip is linked to a scrollpane, since there is not enough real-estate. I right clicked on the myContent movie clip in the library and chose 'export for actionscript' under properties.
[code]...
to get the scroll bar to work. When I add the script in the myContent movie clip to reference the different videos I get a few errors: 1152: A conflict exists with inherited definition flash.displayisplayObject.name in namespace public.5000: The class 'fl.controls.ScrollBar' must subclass 'flash.display.MovieClip' since it is linked to a library symbol of that type. It seems I must tell the scroll bar to look in a subclass?When I get rid of the script telling it to load the videos, the scroll bar works and I get no errors, but when I put in the script to load the videos, its a major malfunction.
Here is the code:
ActionScript Code:
private class someFunction(classRef:Class):void
{
try
{
var instance:Object = new classRef();
[Code]...
Can I perform the check without instantiating?
I'm having some troubles with the use of interface and inheritance in AS3. I've done lots of OOP in the past and what I'm trying to do seems obvious to me, but doesn't work in AS3. The question is : Is it possible to override a function that return an Object of class A, and make it return an Object of Class B which extends A ? It seems not to be possible, since I'm getting a signature error in Flash, when compiling. For example, the following set of class do not compile (the code in function definition doesn't matter):
[Code].....
so i'm working mostly in a main class file. up until now subclasses (or the class for objects that i'm using in my game) have really only contained methods that controlled property values, and properties. however, i'm now interested in making an enemy in my game, but doing almost all the code for the enemy in the class file. i need to figure out how to communicate and check the object instance of the class against an object instance being controlled by the main class.
View 13 RepliesI'm working on a iPad game in Flash Pro CS5.5 and it was compiling correctly. Now I have marked a lot of MovieClip classes for Export for Actionscript so they use a custom MovieClip subclass as base class.
When publishing the movie I get a SWF without any actionscript in it (publishing takes also a lot less time then before). Now I have a suspicion this is because there seems to be a limit on the number of Export for Actionscript you can have?
The problem is that for iPad I can not split my .fla to create multiple swfs; since swfs that you load via the main document can not have any ActionScript in it (I tried already to put all the sounds in a seperate SWF with export for actionscript turned on, that didn't work).
I am hoping someone can explain about subclasses accessing variables from the super class. I found that the subclass can only access variables which are set in the constructor of the super class. Is there any way around this?
[Code]...
I want to create an instance of a subclass from inside a static superclass method. Here is an example:
class Base
{
public static function createSubclassInstance()
[code].....
I want to access a variable from subclass which is in a parent class.Something like this:
class a extends b
{
private var a;
public function a()
[code]....
Say i have these two classes:
MAIN.as
package
{
import flash.display.*; import mx.core.*;
import flash.events.*; import mx.collections.*;
[Code]...
Now how is it that I can add the variable SPRITE which is a Sprite in the OBJECT_square class to the display list of MAIN class? I've tried addChild(SPRITE) and super.addChild(SPRITE). If everything works I should see a red square somewhere on the screen but right now its all blank, except for the text drawn in the MAIN class.
Basically I want it so i can just make a new OBJECT_square and it will draw itself without any more instructions from the MAIN class.
I designed and added in the library MyMovieClip,then i defined a class MyClass, and set up MyClass as BaseClass of the MyMovieClip.Until here All works fine.Then i started writing MyClass. Pointing the attention on a private varible theMC:MovieClip.i wrote the setting function to link this private variable to a Mclip instance in the stage.[code]The class MyClass must subclass flash.Display.MovieClip since it is linked to a library symbol of that type.
View 1 RepliesI'm trying access a static variable located of a super class through an instance of one of it's subclasses and I'm receiving an access of undefined property error (example of which below). Creating another static variable in the subclass and assigning the value from the super class will allow me to dot operate to it.
[Code]....
5000: The class 'CustomLoader' must subclass 'flash.display.MovieClip' since it is linked to a library symbol of that type.This is the error I get when I try to run my flash project.url...but I use Flash CS4 instead of FlashDeveloper.I googled about this problem, but havn't find a working solution.What I've done in an attempt to fix the error is that I:
1. Added Code:import flash.display.MovieClip; to CustomLoader.as
2. Added a Base class to intro3D.fla. The settings can be seen in this image:url...
How do tell my parent class to wait for a subclass Timer finish event? Here is my "Timing" subclass:
[Code]...
With MXML components, I've seen a pattern used where you have an AS3 class, then the MXML subclasses it, to have a separation between view/code (anonymized from real code):
package com.john
{
public class MyComponent extends Canvas
{
[code]...
At least I think the MXML component is subclassing the AS3 class?Anyway is it possible/advised to do this with my main MXML application file, so I can put manager instances and things in the AS3 MyApp class, which is subclassed by Main.MXML?