ActionScript 3.0 :: Flash - IDE Stage Instance Inheritance?
Feb 29, 2012
In the flash IDE I have the file class com.example.NewCore. The NewCore class extends my original class named Core and the Core class extends MovieClip. What I don't understand is why isn't the original Core class able to access the assets on the stage? Or am I doing it wrong and should go about another way for inheritance. Heres alittle more back story... I had a project and it was fully developed. Now I have built another project based on that project with differently styled assets on the stage with same instance names. I needed to override a few functions but the class I extended can't access anything on the stage. I tried researching this but I can't identify exactly what I'm doing.My last guess would be to take everything off the stage and make it a class available in the library, but I don't know what the right way to do this.
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Apr 7, 2011
Base extends MovieClip document class extends Base how would Base properly access a display object which is already placed on stage in the flash ide? for example creating the var in Base's class definition = 1152: A conflict exists with inherited definition in name space public. but just referencing the var = 1120 undefined property , as the item is only a variable of the document class Is the only approach to let the classes load, then create the display object rather than have it on stage already?
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May 5, 2011
I've made it this way1. I made clip and it's main class (eg. timeline.as) - at this point it works2. I put code from main class to another class (eg. timeline_template.as) and in main class (timeline.as) I inherit it by :public dynamic class timeline extends timeline_template {3. I added stage items declarations in timeline_template.as because without that any code couldn't reach target an I got 1120: Access of undefined property xxx after these steps whole clip works but items on stage ( buttons, etc. ) are not affected by code. That's logical because code references to properties declared in timeline_template but not in timeline.fla. But how to get around that - I need several usage of timeline_template and I would like to avoid code redundancy
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Apr 4, 2011
I'm using Flash CS5. I have some instances on my stage declared in the main class and I want to attach some events to them, however at the time of the main class constructor, these are declared as null.
What's the best practice for accessing stage instances? Is there an event listener I could add that will tell me when the stage instance properties have been populated?
Simple example:
public class bleepBloop extends MovieClip {
public var productName:TLFTextField;
public function bleepBloop() {
trace( productName ); // Here it is null
}
}
However, when I access productName later, it's defined.
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Feb 3, 2011
i'd like to count and get position of instance of the same type in the stage.
i have tried:
var target;
for(var item in _root){
if(_root[item] instanceof MovieClip || _root[item] instanceof TextField){
[Code]....
but it says access to property _root undefined, and instanceof deprecated
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Mar 23, 2011
im trying to access Stage Instance in other class but i cant
TypeError: Error #1009: Cannot access a property or method of a null object reference.
at MyClass()
at Main()
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Oct 6, 2011
I would like to know if there is a reason that, within an AS3 class, I would want to do something like this:
var myStageInstance:Stage;
//within an arbitrary class
var myStageInstance:Stage = stage;
myStageInstance.addEventListener(MouseEvent, someFunction);
as opposed to something that I would normally do:
//within an arbitrary class
stage.addEventListener(MouseEvent, someFunction);
There is no particular problem that I am looking to solve right now. I would just like to know if there is a reason to use one method over the other.
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Aug 9, 2010
I am trying to pass a value from the Doc class to* subClass1. This part work fine. subClass1 receives the value and sets an internal variable to the value it got from the Doc class. When I set subCl[code]...
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Aug 21, 2010
I have a class named Level which inherits MovieClip. Level has a child in the designer with the name gridView and the gridView is used in Level constructor.I have also class named Level1 which inherits Level. when I try something like addChild(new Level1()) I get error in Level constructor saying gridView is null.[code]
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May 26, 2011
I have a custom class, we'll call it EntryField, which extends another custom class FieldBase.
I want to extend the EntryField.
Code:
package com.myClasses.fields{
import flash.display.*;
import flash.text.*;
[Code]....
When I run this I get the error The definition is in circular inheritance. I've extended classes more times than I care to count, but I've never seen this. Can anyone offer me some enlightenment?
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Dec 28, 2010
I have 2 TLF text boxes already placed on my main stage. In the property inspector window I give these the instance names: "txt1" and "txt2".I am trying to have a single mouseup event, and figure out which text box it occurred on.My document class has the following code:
package {
import flash.display.Sprite;
import flash.events.KeyboardEvent;[code]...........
Since the objects are already on the stage, I am not sure how to get flash to recognize them as "txt1" and "txt2" instead of "instance#".I tried setting the .name property, but it had no effect.In the publish settings,I have "Automatically declare stage instances"checked.Also is it possible to have a single change event for multiple slider components? The following never fires:
root.addEventListener(SliderEvent.CHANGE, sliderChanged,false,0,true);
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Sep 10, 2009
I've embedded a MovieClip symbol with the [Embed] syntax into my AS3 project, which I'm compiling with the Flex 3 SDK. That MovieClip has instances of other clips within it that are placed on stage with instance names. I can't just access them by instance name like I would if I were compiling with the Flash IDE. How can I reference them?
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Dec 23, 2011
I am trying to communicate between an instance of flash embedded in a browser and a flash instance running in a C# WinForms app... I am getting a compile error that say:
1119 Access of possibly undefined property printOut through a reference with static type flash.net:LocalConnection
Here is the actionscript:
var feedback = "";
var receiving_lc:LocalConnection = new LocalConnection();
receiving_lc.connect("fromClient")
[code]....
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Jan 19, 2010
Alright so I'm trying to call the instance named mcPac onto my stage using the addChild line, and everything I have tried personally has failed.
[Code]...
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May 5, 2010
I am getting a stack overflow error when attempting what I believe is a very simple task. I have a class that extends MovieClip and I attempt to add an instance to the stage. WorkSamples is the main class in my fla.
[Code]...
The Sample object does get added to the stage, although it doesn't honor the x & y position I specify. I'm sure I'm failing to comprehend something simple,
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Feb 3, 2009
I have one MC on stage with instance name "box". That MC duplicates by using this script:
Code:
duplicateMovieClip (box, newname="box2", this.getNextHighestDepth());
box2._x = xPoz;
box2._y = yPoz;
So the new MC is now called "box2".
Inside original MC "box", I have one button. After click on that button, I need to know on which MC I clicked. box, or box2. I tried to use:
Code:
trace (this._name);
But, that get me only instance name of the button.
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May 11, 2010
I was just doing a menu system for a game project, as3 with Flash CS5. The navigation is build on the frame on the main timeline. When I was creating stuffs on the 3rd frame, the btns on the frame can not be called, returning "null", this is weird. With further study, I found that, if I delete a instance on frame 2, the problem on frame 3 will be solved. Then I found that giving the instance on frame 2 a name could also make things normal. What is happening? Why having a unnamed instanced on the previous frame could make the instances on the next frame "null"?
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Apr 30, 2011
I created four instance of movieclip on stage and named them t1_mc,t2_mc,t3_mc,t4_mc. Then I made and array and loaded them inside the array
var arr1:Array = new Array( t1_mc, t2_mc, t3_mc, t4_mc );
var names:String;
//function made to add event listener to each object
function addListner():void {
for ( var i:uint = 0; i < arr1.length; i++ )
[Code] .....
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Feb 9, 2009
How can I refer to an instance on the stage if:
- I added it to the stage using the GUI
- I wrote its implementation in an external AS file
I can't assign it a instance name otherwise I get this error: Code: ReferenceError: Error #1056: Cannot create property myInstance on MyClassName.
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Apr 13, 2009
From the main timeline, I am doing a menu[code]...
My scroll bar appears but when I trace stage into my ScrollBarClass this one is null trace(stage)
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Nov 30, 2009
I`m having a silly problem with adding instance of an object to the stage two or more times. For example, this don`t work:
Code:
var temp0:SomeClass = new SomeClass();
this.addChild(temp0);
this.addChild(temp0);
Well, I know that one instance is one instance and two objects of the same class on the stage would be two instances, but still, it is what I need.
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Feb 19, 2011
addEventListener(MouseEvent.CLICK, clickAction);
function clickAction (e:MouseEvent):void
{[code]....
for every click it will adds a new btn_mc instance on the stage..I wants to add the btn_mc instance to the stage at only once... How can I achieve this?
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Mar 20, 2009
Does creating a new instance of an Object that uses an identical name to an older instance, delete the previous instance? Or should the original instance be deleted first? The code uses a ridiculous amount of XML vars. Isn't it less memory intensive to parse the XML and save the properties to an Object, and then delete the XML Object, rather than keep the XML Object around and reference it's child nodes directly? Is it better form to break up a huge XML file (>600lines/3200vars) into smaller chunks?
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Jun 17, 2010
I have a library object (SomethingMC) which extends a custom class (Something). Something, in turn, extends MovieClip.If adding SomethingMC to the stage within Flash CS3 IDE, is it possible for it's super class (Something) to assign an instance name from a class constant (Something.THE_CONSTANT)?
package
{
import flash.display.MovieClip;[code].....
The above does not work. It throws Error #2078: The name property of a Timeline-placed object cannot be modified. if the instance is assigned a name in the IDE, and it just doesn't work if no name is assigned in the IDE.
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Apr 16, 2011
I placed a movie clip instance inside a button, and I want this movie clip to play when the button is released. I'm using this code on the frame containing the button:
function playMovie(event:MouseEvent)
{
this.theButton.theMC.gotoAndPlay(3);
[code].....
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Jul 19, 2004
Does anyone know if it is possinle to scroll a graphic or a movie instance as well as a text instance in flash. I want to scroll text and images as well. Actually text with imges embedded in it.
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Dec 19, 2010
I have a main document class with another class instanciated (mouse follower.as) within it. I want the mouse follower class to access a stage instance. How is this done?
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Jun 14, 2007
access one instance of a MovieClip on the stage (blue_mc) from within the class file of another MovieClip (red_mc).e.g. One instance of "Blue" on the stage called "blue_mc", and one instance of "Red" on the stage called "red_mc". Both symbols are linked to class files (Blue.as and Red.as).In Red.as, I set up a function to listen for a mouse down event. When this is triggered, I want to move the instance blue_mc. At the moment, though, I can't seem to get a reference to blue_mc.I've looked into the new stage and root properties, but even though blue_mc is on the stage, it cannot be accessed using stage.getChildByName( "blue_mc" ) either.
Code for Red.as:
Code:
package {
import flash.display.MovieClip;
import flash.events.MouseEvent;
[code]....
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Sep 10, 2010
OK this has been a process but i have gotten to the point where i am calling a feedback image for the different categories, I just need to clear the foodfeedback and artfeedback children when music is pressed and the same for the others
/*import flash.display.MovieClip;
import flash.net.URLLoader;
import flash.net.URLRequest;
[code]......
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Oct 5, 2010
I wanted to create an instance of a textField on the stage with simple text. I thought the following piece of code would work:
var textfield1:TextField = new TextField();
textfield1.text = "testing text";
textfield1.x = 300;
textfield1.y = 300;
textfield1.height = 150;
textfield1.width = 150;
textfield1.autoSize = TextFieldAutoSize.LEFT;
As far as I can tell the object is created and IS there but I have to call it somehow I guess.
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