ActionScript 3.0 :: Creating Object References In Array
Oct 29, 2010
I want to do is create several arrays to hold groups of movie clips (i am using as buttons) which have similar functions so that I can add event listeners using a for loop statement rather than making a huge list of add and remove event listeners.I have seen this method working before but I cannot get my code to work!! This is probably a very noob concept but I have been struggling with it for hours.Ok, so in the extends movie clip bit on my as file I declare the array as such:public static var controlBtns:Array;Then in the initializing function I put values into the array as such: [code]The trace seems to output all the object names (as they are listed in the library) and then I get this error: TypeError: Error #1010: A term is undefined and has no properties.Which is kind of obvious as I cannot seem to access the movie clip instance names that I have set up in the array.I tried putting quotation marks around the names in the array making them strings but then I can't access properties of strings - which is obvious enough to.
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Apr 7, 2012
I would like to add a bunch of cars to the stage, and store them in an array as objects. The problem is I hate using external AS files and would like to keep it as simple as possible.I tried doing :
var car:Object = {carcolor:String,carscale:Number,carpower:Number};
var test:Array = new Array()
for (var i:Number=0; i<10; i++) {
test.push(car)
}
The problem is if I try to set a value of one object in the like test[1].carscale = 5
Every object in the array gets their attribute carscale set to 5.Is there any way I can do this without using external class files?
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Mar 5, 2010
I need to create an array with objects when using random numbers. This is the script I have:
ActionScript Code:
if(_root.EnemyCar.hitTest(_root.kill)){
_root.EnemyCar.removeMovieClip();
var lol6 = Math.floor(Math.random()*200);
if (lol6==2){_root.attachMovie("EnemyCar", "EnemyCar", _root.getNextHighestDepth(), {_x:74, _y:-100})};
if (lol6==1){_root.attachMovie("SwatVan1", "SwatVan1", _root.getNextHighestDepth(), {_x:114.9, _y:-45})};
if (lol6==0){_root.attachMovie("OilTanker", "OilTanker", _root.getNextHighestDepth(), {_x:74, _y:-250})};
}
As you can see the random number is from 0-250, I want to be able to have enemycar spawning from 2-20 and other movie clips spawning from 20-40 etc.
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Jan 25, 2010
Ever needed to create an object hash, yet wanted to retain some array functionality such as .length, and getItemAt()? Well I wrote a handy little utility class, using Proxy, that does so. Simply use it in place of a generic Object, and it will maintain a count of it's properties, as well as allow you to reference any index you need [URL].
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Feb 27, 2011
I have a movie clip in which I have a number of sub movieclips. The number of sub movieclips can vary, so I would like to keep track of them in an array. I am doing that like so:[code]The trace seems fine, showing the names of the correct sub movieclips, but when I try to change the alpha I get this error: TypeError: Error #1009: Cannot access a property or method of a null object reference.
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Nov 4, 2010
I'm writing an application where I have many objects (data models) that are identified by a unique String ID that every such object possesses and these objects can refer to each other by their IDs.So far so good but now I need to keep track of which object keeps a reference to another object and of course there are cases where an object references (or is referenced by) more than one other object and I was wondering what would be the best method to store these references? In a simple map data structure I could just map one object's ID to another but as mentioned there are cases where an object can hold a ref to an arbitrary amount of other objects
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Feb 27, 2010
i retrieve a list of instances located in a array to manipulate them in a variable holder. Normally, the operations can be made between two instances stored in a simple variable to variable fashion and it works realy fast.I analysed two main operations: retrieving references in a array to a variable and get or set a value from the variable reference.Here are the objects used to perform the test operation:
var v4:Vector.<Person>= new Vector.<Person>();//List of Persons instance
var refHolder:Person; //Typed referencevar refHolder2:*; //Not typed reference
Test #1: looping 200 000 times and only retrieving references from the array v4.[code]........
So my conclusion with that test is that with a typed reference you spend more time assigning a reference than manipulating a value from the reference With a not typed reference, the time spent is in manipulating the reference in the variable.Which one should i use or what should i do to have better performance with manipulating references from arrays?
Here are the files i used to test this:
reference.swf //Online example
reference.zip //Source file
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Mar 8, 2012
Does anyone know if it's possible to list the references an object currently has in ActionScript3 (e.g. listeners, children etc)?
I'm trying to clear an object from memory ready for garbage collection but for some reason it's hanging around.
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Sep 22, 2009
I am trying to create an object that is handling the events of different objects. The object is created in the 1st frame of a code layer:
ActionScript Code:
var gImageEdit:ImageEdit = new ImageEdit( imgAction, movImageFront,
movToolbar.btnZoomInImage, movToolbar.btnZoomOutImage, gZoomSound );
[code].......
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Jun 3, 2010
I'm just getting to grips now with how the Garbage Collector works.
Is there a way (like a function or a custom class available somewhere) to check an object for all its references and return them so that you can see what it's connected to?
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Aug 12, 2009
* Is it possible to create weak references to objects (like theventListener/EventDispatcher is able to do) so that if they are removed, you won't be stuck keeping a reference and taking up space to something that should be garbage collected?* Is there any way to find out how many active variables are referencing a certain object? This would be handy to actually create weak references, since, if you for example, have a static array containing all objects created in that class, you can do a regular check to see if there is only one remaining reference, and if so, you can safely remove it.
* Also, might there be any way to list the entire space (one big chunk of binary data, most likely) of every variable currently running in the program, all references, basically, what Flash is currently storing in RAM?I'm pretty sure that Flash (as crappy and lacking as it is in so many areas) does not have anything like any of these built in, but hopefully there is at least something.
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Feb 27, 2010
how can i cycle thru a local folder to add all (or some) files names and references to that file in an array using actionscript 3.0?
var fileArray:Array = new Array();
for (var item:Object in "../myFolder/")
{
[code].....
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Sep 26, 2009
I have an array containing references to movieclips like this
ActionScript Code:
positionsArray = [posi1, posi2, posi3,posi4,posi5];
tooltipArray = [tooltipProy, tooltipAsig, tooltipRota, tooltipActi];
[Code]....
And the result is: tooltipArray = ["tooltipProy", "tooltipAsig", "tooltipRota", "tooltipActi"]; which doesn't work because the array no longer contains references to MovieClips but strings
2. NOT surrounding the name of my movieclip with ""
on (release) {
_root.tooltipArray.push(tooltipProy);
}
Which gives an undefined value
How can I "transform" the strings in the array to references to MovieClips?
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Jun 10, 2010
I have a bit of a memory leak issue in my Flex application, and the short version of my question is: is there any way (in AcitonScript 3) to find all live references to a given object? What I have is a number of views with presentation models behind each of them (using Swiz). The views of interest are children of a TabNavigator, so when I close the tab, the view is removed from the stage. When the view is removed from the stage, Swiz sets the model reference in the view to null, as it should. I also removeAllChildren() from the view.
However when profiling the application, when I do this and run a GC, neither the view nor the presentation model are freed (though both set their references to each other to null). One model object used by the view (not a presenter, though) IS freed, so it's not completely broken. I've only just started profiling today (firmly believing in not optimising too early), so I imagine there's some kind of reference floating around somewhere, but I can't see where, and what would be super helpful would be the ability to debug and see a list of objects that reference the target object. Is this at all possible, and if not natively, is there some light-weight way to code this into future apps for debugging purposes?
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Aug 18, 2009
I have a 2-dimensional array of Objects. Their location in the array determines where they appear on the screen. When I want to move an object down, I am trying something like this:
[AS]LocationArray[i][j+1] = LocationArray[i][j];
LocationArray[i][j] = null;[/AS]Of course, with the way AS3 handles objects and references, it removes the object completely. How can I simply move a reference (or remove an reference) without destroying the object?
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Sep 29, 2004
loading external SWF's and its class files hanging around after the movie is unloaded....Its kind of tricky to explain, but you can see it very clearly in this file... http:[url]...Just run the main_stage.fla within flash [mx 04] and you'll see that if you click "Tester A" it will trace out "My Name is Tester A", then if you click on "Tester B" it will load a different swf, with a different class, but still trace out "My Name is Tester A" when it should be "My Name is Tester B"....
I have tried, unloading the swf's, removing the mc_Dropper and re-attaching it, re-declaring the variable testObj as null before declaring the class,
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Nov 6, 2008
I am a new flash developer and I cannot seem to understand this problem. Whenever I try and trace one of these variables of type XMLList they all return NULL except for the last one in the array.The createDatsSets() function is designed to pull XMl data and copy it to an variable of type XMLList which resides in an array. This should happen 8 times to add data to all 8 variables.It works fine with a single variable but, in the for statement when.I try and trace any of the variables in the xmlList array only the last one has XML data in it.
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Oct 12, 2009
I'm trying to get my head around optimising AS3 code and clearing things out for garbage collection.
I understand that each time an item is referred to in the code it has its reference count increased by one, so I was wondering if there is a trace option I can use to see how many references each of my objects has?
I can then see where things are getting left behind (if they are) and where I can make optimise better.
I think it would help me work out several issues if I was able to do this
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Jun 23, 2011
On Senocular's page http://www.senocular.com/flash/tutor...ashcs3/?page=2
there is a Tip: Reducing Display Object References I need help with.
if I do:
[Code]...
without removing the listener, does that still leave a reference to "myMovie" in memory?
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Jun 20, 2011
I was thinking about Flash GC the other day and came up with a question about how reference counting would work in the following 4 class scenario (assume GuiMain is the movie's document class):
[Code]...
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Oct 4, 2006
I have an array called dropTarg1 which stores dropped-in items.I want to loop through this array and in a textfield, display each array item on a new line of this text fieldI think I need to use something like Array.join("/n") but I can't get it working properly. I hope that the /n would create a new line of the text field called reviewBoxContentText.
for(var i:Number = 0; i<dropTarg.length; i++){
with(reviewBoxContent.reviewBoxContentText){
autoSize = true;
[code].....
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Aug 22, 2011
I have one MXML File as
<objecthandles:ObjectHandles xmlns:fx="http://ns.adobe.com/mxml/2009" xmlns:s="library://ns.adobe.com/flex/spark" backgroundAlpha="1" xmlns:mx="library://ns.adobe.com/flex/mx"
[code].....
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Aug 11, 2010
is it possible to create instance inside method of another instance? But I want new instance to be sibling of instance where it was created.something like this:
ActionScript Code:
parent = new Parent();
childA = new Child();
parent.addChild(childA);
Child class would have this onclick event function:
ActionScript Code:
public function child_click(e:MouseEvent):void {
childB = new Child();
}
I want "childB" to be child of "parent", no property of childA. so I could do:
ActionScript Code:
parent.addChild(childB);
how is this possible without passing "parent" instance as parameter?
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Jul 13, 2010
I am curious if this is an okay implementation of the Array.filter() method.
[Code]...
I was not able to figure out an implementation of the callback function for the filter() method, where the callback was outside of the getGallery() function. I wonder if there is a way to get the isGallery function outside of the getGallery scope?
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Jul 7, 2010
I have been trying for an hour to clone an array, It seems that nobody has a true reference on how to do it. Two arrays - movieClipArray 1 and movieClipArray2 I want to duplicate movieClipArray1 entirely so that when I addChild(movieClipArray2[0]), it doesn't take away from movieClipArray1 or reference it in any way.
[Code]...
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Jun 18, 2009
I am trying to use the following code to convert an object read in from a ByteArray to an Array and store it:
var data:Object = ba.readObject();
var invObjects:Array = data as Array;
In debugging, I find that 'data' is indeed populated with the correct data and takes up memory and is in an Array friendly format. However, invObjects is NULL. How does merely saying 'data as Array' make the holding variable suddenly null?
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Aug 4, 2009
I created an array in the var declarations with Code: var private eDrag:Array In a function that adds imported mcs to the stage, I also added code to push each to the array. Here is an example of a block of code loading the object with the part pushing the object to the array at the end:
[Code]....
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Apr 4, 2011
I'm working with a web service and am returning an array to a field (that I set the data type as an Array). The result thus far is "[object Object]". How can I get the array values back out as a string?
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Apr 2, 2010
I have an xml say in following format
[Code].....
What I should do is parse an xml and from its node name create object property and then create an object array based on those property. Am I able to make myself clear.
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Nov 11, 2007
I'm basically loading an XML file to assign instances of a movie clip a distinct value, which it uses to modify its height. So, I'm looping through the xml and instantiating my class Object each time (Rect) and then placing that Object into an array:
Code:
function loadXML(loaded){
if(loaded){
var boxArray:Array;
xmlNode = this.firstChild;
[code]....
the trace here always comes up undefined. "listPosition" in this bit is an Rect parameter, defined in the previous bit of code as "i", so I can keep track of the order of the stack.I've found one or two examples of putting objects into an array and getting them back out, but it doesn't seem to work with this, maybe because I'm using a class. I don't know.Could this be an area where I need to use the array access brackets, like around the movie clip the object is loaded into. I've tried everything I can think of -- referencing back to the movieclip, adding extra objectRef type parameters... nothing has worked yet.
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