ActionScript 3.0 :: Class Error - Must Subclass?
Feb 24, 2010
I'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.
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Jul 28, 2010
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]....
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Jun 7, 2009
Running Flash CS3, I've reviewed the lynda.com tutorial on building particle systems in ActionScript 3.0 to try and build some shooting sparks in an animation.I'm getting stuck at what I think is a really elementary point, but I can't seem to get past it.
Basically, all I'm trying to do at this point is create a class called Particle (which I will teach to do things that particles do a little later) link it to a MovieClip on the stage in my .fla file and use the particle's update function to move it across the stage in a manner defined in the instance (so I can later give different movement properties to each AS generated instance of the MC). I know there are easier ways to accomplish my base task without loading an external package, but this seems so strightforward that I must be doing something very simple wrong I just can't see so I thought I'd post the code here and see what I'm missing.
I start with a file called Particle.as in the same folder as my Spark Test.fla file.
In Particle.as I have the following code:
package{ import flash.display.*; public class Particle extends MovieClip { public xVelocity:Number; public yVelocity:Number; public function Particle() { xVelocity = 0; yVelocity = 0; } public function update():void { this.x += xVelocity; this.y += yVelocity; } }}
So I'm declaring that all particles are built with no motion, but if they are explicitly granted an x or y velocity, they will move by that much when the instance's update function is called in the timeline.
Then in my Spark Test.fla file, I have a small shape in a MovieClip called Spark. In the Linkage properties of Spark I have chosen to Export for ActionScript and Export in FIrst Frame. The class is called Spark and the Base class is Particle. For testing purposes I've dropped an instance on the stage and called it spark. Then in the actions layer in the first frame (the timeline is just the spark layer and the actions layer, one frame long each with no "stop();" so it should run forever) I have included the following code:
spark.xVelocity = 5;spark.yVelocity = -1;
function updateSpark(event:Event):void{ spark.update();}
addEventListener(Event.ENTER_FRAME, updateSpark);
What it looks like this should do is on each ENTER_FRAME Flash should call updateSpark which is a function that runs the update() event for the spark instance which is a instance of a movieclip that has an update event which moves x and y position by their relative velocity variables. This all seems pretty straightforward to me, but when I ctrl-Enter to test the movie, I get the following 3 compiler errors:
Particle.as Line 1: 5000: The class 'Particle' must subclass 'flash.display.MovieClip' since it is linked to a library symbol of that type.
Particle.as Line 7: 1071: Syntax error: expected a definition keyword (such as function) after attribute public, not xVelocity.
Particle.as Line 7: 1084: Syntax error: expecting rightbrace before semicolon.
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Jun 24, 2009
And i cant figure it out.the "my.fla.class"content looks like this
Code:
package my_fla
{
[code].....
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Mar 25, 2010
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?
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Mar 2, 2011
package {
public class priyan {
public var a:String = "priyan";
public var b:String = "bhagavath";
public function method():void {
trace(a);
trace(b);
The above script, i got it from one of the ActionScript 3.0 book. i just work it out in flash. But it shown error 5000: The class 'priyan' must subclass 'flash.display.MovieClip' since it is linked to a library symbol of that type.
[Code]...
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Mar 6, 2012
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].....
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May 13, 2011
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;
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May 1, 2011
Can I access a static variable of a subClass' subClass? I don't want to instantiate it, just looking to get the variable because it has already been initialized by the subClass.example:
package
{
public class A extends MovieClip {
private var classB:B = new B();
[code]....
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Jan 14, 2009
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?
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Jun 25, 2010
I have a movie clip "Obstacle" for a simple game. I have a class for it (Obstacle.as) that creates it, and moves it. In this Obstacle there is a text field - i use it for testing right now.
I want to make another Obstacle (HayBale) - with a subclass (HayBale.as). I have it mostly working. ACCEPT that text field.
It pitches this error:
1152: A conflict exists with inherited definition com.screenscape.game:Obstacle.myDisplay in namespace public.
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Oct 18, 2010
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.
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Oct 13, 2011
I'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).
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Aug 16, 2010
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]...
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Jan 29, 2011
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].....
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Oct 31, 2010
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]....
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Jul 10, 2009
error When your accessing a method or property from a subclass. Here's what I have done so far but no luck in my script.
1. I tried waiting for my attached movieclip to be added to my stage using the setTimeout method but no luck.
var timedProcess:Number = setTimeout(initRevealDropDown, 1000);
private function initRevealDropDown():void
{
clearTimeout(timedProcess);
var myInterface:Interface = new Interface();
myInterface.revealDropDown();
}
2. I also tried extending my subclass to interface where my instance method is defined for revealing my dropdown menu, no luck on that one.
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Sep 15, 2011
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?
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Aug 15, 2010
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.
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Nov 27, 2009
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.
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Aug 10, 2011
I'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]....
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Nov 1, 2011
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...
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Jun 12, 2009
How do tell my parent class to wait for a subclass Timer finish event? Here is my "Timing" subclass:
[Code]...
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Oct 21, 2010
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?
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Nov 15, 2011
I am having an issue with compiling a .swf. I get the following error on what seems to be related to the images. There is about 40 that are all very similar the the error code listed below:
5000: The class 'com.decalmywall.Emb_EMB_BORDER' must subclass 'flash.display.BitmapData' since it is linked to a library symbol of that type.
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Aug 16, 2010
I have two classes. The Main class calls a function, which is defined in a Second class.I'm getting the following error:Error 1120: Access of undefined property myFunctionBasically, I am creating buttons in the Main class that will add a corresponding Child to an Object in the Second class (if you click one button, child x1 will be added, if you click another button, child x2 will be added, and so forth).Here's the relevant code for the Main.as file:
package
{
import flash.display.MovieClip;
[code].....
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Dec 18, 2010
or: why doesn't a switch case without a break work always?I have got this code snippet as part of a function defined in MyClass
var ni:int, np:int, xv:Number, yv:Number;
for(ni = np = 0 ; ni < cdata.cmds.length ; ni++){ switch(cdata.cmds[ni]) { case GraphicsPathCommand.MOVE_TO:
[code]....
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Nov 19, 2009
I am refactoring a hugh action script solution in Flash builder (beta 2) using the flex 4 sdk.The project does NOT use the mx framework.What i want to have is:
A big 'MAIN' project several small 'MODULE' projects. each 'MODULE' class refrences the 'MAIN' project as an External reference (doesnt compile into swf) - this is done by setting link type = external in the 'MODULE' project properties -> library path.'MAIN' loads a 'MODULE' project on runtime using the 'loader' class.
the problem:I recieve an error from the MODULE project: VerifyError: Error #1014: Class [some class in MAIN] could not be found.
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Nov 21, 2007
Getting this error when instantiating this class. It's set up in my FLA as the document class:
ReferenceError: Error #1056: Cannot create property tab0 on
classes.tagwidget.TagWidget.
at classes.tagwidget::TagWidget/::addTabs()
at classes.tagwidget::TagWidget$iinit()
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Aug 13, 2006
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]...
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