ActionScript 3.0 :: Referencing A Parent Object?
Oct 7, 2010
I have a class attached to a movieclip in the library
That class is calling an instance of a new class
How do I reference an item in the movieclip(which is on stage) from the called instance?
Movieclip - class attached - calling an instance of a class (this is the one I need to reference the stage)
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Jul 10, 2009
I'm currently making a platform game and when the player shoots i want to add the bullets to the stage. The players gun class is in charge of adding bullets. The "players gun" is a child of "players gun holder" which is a child of "player" which is a child of the stage. is there a better or more dynamic way for the "players gun" to add bullets to the stage rather than using parent.parent.parent.addChild (bullet);
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Nov 17, 2010
I usually would call the parent of my class by something like:
MyCustomClass1(parent).thisFunction();
My problem is this works if I know the class of my parent. How do you handle the case where you class could have a parent of 2 or more possibilities?
parent.thisFunction(); // throws error of course
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Mar 16, 2009
A have two classes: Main and Navigation. I try to referenceobject in Main class from Navigation class based on the buttonnumber I clicked. Doesn't work as I want it to work. What can I do
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Mar 9, 2012
Each of these children has an index value assign to it for the purpose of relating to an XML file, but that's beside the point. Those children have other children eventListeners that call a tween function. That tween function wants to tween the first child.First question: what is the proper syntax for referencing the parent and getting that index value? Does this work, with currentTarget being the child that called the function:var something = e.currentTarget.parent.index;If not, how can I get that index value?Second question: In order to determine which of the first children the tween is applied to, I could write a conditional that checks the index value and tweens based on that. Is there an easier way to do this? And what conditional would work best? I'm thinking if() else() but I'm relatively new to as3 so if there's something more efficient I'd love to hear it
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Jan 4, 2007
I have an array defined in the main timeline to store some values. At some point of time, I am dynamically adding a movieclip to stage using attachMovie and then using a movieClip.onEnterFrame event to set one of its values by referencing to one value from the main array.(Sorry if the following description sounds a bit confusing. I am attaching a part of the code below to help describe the situation) The problem is that it is not able to retrieve the value from the main array no matter what I try. I tried adding a "_root" befor the array name and the index array id but it did not work. Not only that but the trace shows that it is able to retrieve the index id as well as the full array but not any particular value from the array - as in, trace(arrayname) outputs all the values from that array but trace(arrayname[a][b][c]) gives an output 'undefined'.
I have managed to make it work by creating a temporary variable to store that particular value just before the onEnterFrame event kicks in, but I would love to know why it is not working the way I thought it should. Here is a part of the code. If someone needs more info about the code then please ask and I will give it in the next post (The full code is way too large to be posted here)
ActionScript Code:
//------In main timeline
var movesNum:Number = 0;
[code].....
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Nov 20, 2009
I have a frame that I want to display but the function that calls it exists on the parentHow do I call a frame that exists within a child movieclip from its parent?Here is my code. It is basically for a restart button.Here is the parent function.
Code:
function restart(event:Event)
{
[code].....
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Dec 4, 2009
I am working on a tool for use in our office which creates XML. At this point I am working on getting an error message to appear when the user enters incorrect data in one of the textfields. I have a MC which contains my error message as well as a button. The button will move the MC back off of the stage. Everything works up to the point where I click the nested button. I suspect there is a problem in referencing the parent MC from the button.Here is the code for the entire project. I am sure there are more than a few errors since I am relatively new to AS
import fl.controls.RadioButtonGroup;
import flash.display.*;
load_file.addEventListener(MouseEvent.MOUSE_UP, do_load_file);//load file button click.
[code]........
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Feb 13, 2011
I have this MC attached to the stage with an instance of say: insA, then within this I have another called say: insB, then finally another one within insB called say: insC.so normally to access the third one I would use: insA.insB.insC do something.I have this button within another MC called say: '2ndinsA', so when a button within '2ndinsA' is pressed I need to perform 'something/move' onto insC.
Now within the class attached to '2ndinsA' i have the parent.getChildByName("insA") code and its seemed to grab the 'insA' and I could then move it, but its the insC that i want to move.How can I then reference the 'insC' within that MC )'insA', i have tried several ways but all come up short (errors galore)
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Oct 11, 2010
I would like to know the way to prevent a child swf from referencing its parent swf stage width/height?
for example, i created a child swf that loads image and center it on it's stage. As a stand alone its fine but i loaded it with parent swf, it centers on the parent swf instead.
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Jun 19, 2003
Say I have an object MyObject which hasan XMLSocket defined in it, how I can access the Parent object from the onConnect function:
function MyObject()
{
this.ConnectionState = false;
[code].....
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Nov 12, 2010
How do you reference and already existing object in as3? My below program draws 2 circles and a line to connect the two. The circles and the line are all individual objects. The line (connector class) has a function called update that should redraw the line between the two circles. It has two variables which I want to be the references to the two circles. The circles (coolcircle class) has a variable which I want to be the reference to the connector. It doesn't seem like my update() function is getting called.
ActionScript Code:
package
{
[code]......
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May 25, 2010
I want to listen for a custom event dispatched from the document class in a custom subclass. For example, let's say in the document class I have:
ActionScript Code:[code]....
So that the subclass will trace 'Event from document class received' when the 'customEvent' event from the document class is listened by the eventlistener. However, the output is only 'customEvent dispatched', meaning it wasn't heard in the subclass.
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May 7, 2009
I have an object present in frame 3 of the main timeline. When the object was present in frame 1 i could access it from an as3 code file. But when I am keeping the object in frame 3 of the timeline (Please note that the previous frames for that layer is blank). I am getting a null value for the object. if I try to use trace the object.Logically if I am in frame 3 i should be able to access it.
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Apr 19, 2010
I need to know how to call or reference (not sure of the terminology) an object by way of a string. What I'm trying to do is create a loop that will add event listeners to objects named "portfolio1" through "portfolio15", and use a function.[code]If I could just reference these fricken objects through a string and an integer, I could set up a small loop like this to make the button "portfolio1" bring up a big jpeg of "bigportfolio_1", and "portfolio2" bring up a big jpeg of "bigportfolio_2", ext. While yes, I could just go through them all and set up event listeners to each one individually, but its REALLY inefficient. Also, I am still working on more advanced actions (like scrolling through the portfolio pics chronologically) that absolutely requires a different reference method.
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Jan 15, 2009
I have my main flash, named "front page". Inside of it, I have 2 movie objects that have a time line, one named "About Us", and another named "Button Group". Inside of "Button Group," I've made a drop down menu that can go to a frame on the main page (in "front page") using the _root command. I was wondering if I could go from the front page into the other movie object ("About Us") by going through the main page.
Tl;dr, I'd like to know how to go to the parent of a movie clip and into another movie clip to modify where the time line is.
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Nov 3, 2009
I was wondering if anyone could tell me how to access a certain object in an array. for example, I created an array of buttons displayed on the stage. Now I need to attach an onRelease command to each one to launch a new image on the stage.e going round in circles with this. I have attached the code below for reference:
thumArray = [];
function thumbs(){
for (i=0; i<totalImages; i++) {
[code].....
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Sep 24, 2010
I have a fairy sizable class, a`nd an mx:Application that will periodically instantiate a new object of this class, which results in member functions of the class being assigned as event listeners to the application, and also other member display objects of the class being added as children to the application. When the application creates a new object of this class the old object is destroyed: to accomplish this, removeEventListener and removeChild are called on various members of the old object (to decouple them from the parent application) and then the final reference to the old object is set to null, and then finally the well known localConnection hack is called to force FP to actually free the memory.
And the thing is, the above destruction procedure always works to deallocate an object - except for the very first object allocated. it has proved impossible thus far to release the memory of the first such object created, or find out what is preventing it (i.e. find out what is still referencing it). So my question is - is there any useful utility that will tell you what is still referencing an object and keeping it from being garbage collected. Someone implied to me that the flex profiler would do this (which I do not have access to) but another 3rd party profiler I found for flex would not do this (i.e. tell you what is referencing an object and keeping it from being deleted.)
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Jun 14, 2007
I am in no way very knowledgable with ActionScript, so this might be very simple and I am looking in all of the wrong places... but basically here is my issue: Instead of accessing an objects attributes like this, _level0.thumbnails.thumbnail0._width = 500; I want to be able to access it with _level0.thumbnails. (this.id) ._width = 500; where as (this.id) is a variable that could be equal to "thumbnail0" or "thumbnail99" depending on which object gets clicked. I have everything working to if I hardcode thumbnail0 it works fine, and this.id does get set to whatever thumbnail I click's "thumbnail" + ID
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Jun 1, 2009
referencing instances of an object in AS3
I want to be able to build a navigation and reference each navigation item separately changing each instances properties depending on rollover actions etc.
I would have thought that once the name is assigned through the for loop that would stick, eg. the following code would create 3 vars called navItem, each with the name 0, 1, 2. But it seems if I trace the name outside of the for loop each is called 2. I think Im misunderstanding something really simple!
public function buildNav():void {
for (var i=0; i <itemNum; i++){
var navItem:NavItem = new NavItem ();
[Code]....
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Oct 12, 2010
I've got a button which is called "playBtn", within this i have a MC called "btnlarge", If i remove the .btnlarge from the below code, then the "playBtn" is coloured correctly in my player,
Code:
var sColor:ColorTransform = player.playBtn.btnlarge.transform.colorTransform;
sColor.color = scolour;
player.playBtn.btnlarge.transform.colorTransform = sColor;
however with it in.. i'm obviously wanting the btnlarge MC to be coloured, but this isn't happening and its throwing me this error:
ReferenceError: Error #1069: Property btnlarge not found on flash.display.SimpleButton and there is no default value. at f4:layer/skinCompleteEvent()
Is there something really obvious i'm doing wrong? I've tried changing the "playBtn" into a MC and all kinds of things, but nothing seems to work, i can't seem to reference anything within another object.
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Oct 16, 2011
I have a several objects nested within an array. I'm trying to reference a property of one specific object (intel).
function eventGenerator():void
{
var randomArea:Number;
randomArea = Math.ceil(Math.random()*5);
[Code].....
ainPlace names is the array's name. The random area variable contains the co ordinate on the array for the object. Each object on the array has a property called intel. The idea is I want to able to store the value of intel in a number and use in an equation. I would also like to be able to adjust the number. the trace function here returns an error saying it is undefined so eventArea.intel for some reason isn't referencing the intel property of the object.
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Feb 1, 2009
and I'm trying to add an event listener and a function to the class, but I keep getting errors of undefined, I tried just about everthing to be able to refference obj0
objGroup.obj0.addEventListener(MouseEvent.CLICK, onClick)
private function onClick (event:MouseEvent):void{
trace ("Click");
}
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Jul 7, 2010
I'm trying to:Jump from frame 1 to a frame later in the main timeline Reference an object that exists on the stage in that frame, but not in frame 1
Like so:
ActionScript Code:
function endGame():void {
gotoAndPlay("gameOver");
scoreField.visible = false;
}
A movieclip with the instance name 'scorefield' exists in the "gameOver" frame, yet for some reason, I just get a "Cannot access a property or method of a null object reference." This code is all within a function. By the time the reference to scoreField is executed, the timeline is at the right frame.
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Dec 11, 2010
i'd trying to build an interactive tree that allows the user to move the tree's branches and nodes. the lines (branches) of the tree are drawn programmatically between points (nodes and tips). i'd like for the user to click on points to drag them while having connected lines and points move correspondingly. i've gotten this to work to some extent using the code below:
ActionScript Code:
function startMoveOa(evt:MouseEvent):void {
thisPtOa = Sprite(evt.currentTarget);
[code].....
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May 23, 2011
Right now, I create the world class first, from my main timeline. This is placed as a display object, and it contains many other display objects, most notably the level Holder, which holds all foreground pieces.After creating the world class, I create the camera class from my main timeline, and pass it the instance of the world class as an argument. What I'm trying to do in the camera's code, is create DisplayObject variables for the levelholder (and several other children of world) and set it equal to world.lvlHolder, like so
Code:
public function Camera(input:DisplayObject)
{
[code].....
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Nov 20, 2009
I have a bunch of objects with TextFields in them that are added to another object called Field.[code]If it is a player, and I can scale it, why can't I access the textField?
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Sep 6, 2011
I have a media player that I am codging together, one that will play either videos or MP3s depending on the variables it is passed. The video player part works fine. The MP3 player controls are all actual physical MCs on the stage; each one has its own AS class file as part of the package, but there is also a lot of AS that is happening in the main FLA as well. Messy, I know, but it mostly works great.
The MC on the stage in the main FLA is properly linked to the class file via Actionscript linkage, and the control itself works. However, I am trying to make some aspects of the control respond to variables that are set within the AS on the timeline of the main FLA, and I cannot seem to pass values to the control no matter what I do.
[Code]....
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Oct 19, 2011
I was just wondering whether it would be possible to remove an object from an array without referencing its index, for example when the index is unknown, or when you want to splice it from within the class itself, like ina die function for an enemy in an array. I have a project due on Friday morning, GMT.
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May 20, 2009
I make a movie clip in the library ( a button with a text field on it ) and export it for actionscript. Then I create an instance of the object using code ( myButton = new Button1(); ).And then I want to access and change the text field ( whose instance name is "myField" in Flash ) afterwards.Is that possible, or I have to create a custom class for the object, or just create an entire button dynamically?
Because what I have tried until now doesn't work.
Code:
var button1:button_test1 = new button_test1();
button1.x = stage.width / 2;
button1.y = stage.width / 2;
[code]....
This questions is for all movie clips: is there a way to access a movie clip's objects with actionscript after you have created (with code) an instance of that object (which was designed in flash, and exported for AS) ?
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