ActionScript 3.0 :: Since The Variable Was Declared Without Reference Into The Class How Long Does It Stay In Flash's Memory
May 12, 2009
I was thinking about how to streamline my code the other day and looked through my classes checking for possible memory leaks. I wonder when are variables declared inside of methods clear for garbage collection? or are they not and just hang around? For instance if I have a class like this:
[Code]...
Since the variable was declared without reference into the class how long does it stay in Flash's memory, or does it stay indefinitely because it cannot be nullified?
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Mar 28, 2011
i have a variable declared in alchemy asm:
asm("var buffer:Vector.<Number> = new Vector.<Number>(100, true);");
i can populate it with data like so:
asm("buffer[%0] = %1;" : : "r"(index) : "r"(value));
what i can't figure out is how to get a reference of that asm "buffer" variable into actionscript.
(i did think of one way... what i did was to throw the "buffer" from alchemy asm, and then catch it in actionscript, but unfortunately it seems to leak a lot of memory).
is there a better alternative to doing this?
note that performance is critical, and using default alchemy marshaling is way too slow.
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May 24, 2011
On the stage I have a movieclip by the name of rect_mc. Inside it have have a MovieClip square_mc.In the time line that I get when I double click on rect_mc (timeline of rect_mc) I have written the following code
var width1:Number;
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How can I access width1 from the document class?The thing that I want to is access the variable declared (width1) in the timeline of rect_mc. Just for the sake of a example only I choose the width of MovieClip.My doubt is how can access a variable declared inside the timeline of rect_mc from the document class. It could be any variable.My document class is:
package
{
import flash.display.MovieClip[code]....
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Mar 11, 2009
I wonder what the most common reasons for memory leaks in AS3 are.First thing what I am not sure about is: is it better to have a variable reference inside a function or outside it. Will the variable be null-d automaticly inside a function or when do I have to null it and when not?I have massive problems with my game with memory leaks. I noticed I reference some of the clips of the timeline even inside my debugging clip to display propertys and this was causing collecting huge amount of memory.But even before I go into the game with bigger objects the System.memory is slowly growing and growing.I just have a socket connection and some interval loops and enter_frame events.
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Apr 1, 2011
If my class has declared a private var _iDontGetDefined:EnormousObject; but never creates anything to be stored there, does this impact performance or use a significant amount of memory?
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May 24, 2011
On the stage I have a movieclip by the name of rect_mc. Inside it have have a MovieClip sqaure_mc.
In the time line that I get when I double click on rect_mc (timeline of rect_mc) I have written the following code
var width1:Number;
width1 = sqaure_mc.width;
How can I access width1 from the document class?
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Nov 7, 2011
I have a question regarding AS3 memory management. Supposing I created an instance variable for a Class, in this case or type Sound:
public class SoundStore extends Sprite{
var s:Sound;
Then within various class functions I referenced this variable multiple times, each time I wanted to load in a new sound:
s = new Sound();
Am I correct in thinking that each time I created a new Sound I would be overwriting the previous allocated memory?
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Jan 9, 2011
I have a class that extends an object, and have declared some variables in the class code:
Code:
package {
public class myclass extends Object {
public var _test = "yey";
[Code]....
How could i get the default value of the var _test? If i try to trace directly with the class as the pointer, i get syntax error:
Code:
trace(myclass._test);
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Oct 29, 2009
I have a question about OOP, because I'm trying to add functionality to the buttons to load swfs into my main movie. Even though I strictly follow tutorials and exercises, I can't figure out how to reference a variable made in one class to another. For instance, I have index.as, navbar.as, and menubutton.as. I assume I need to add a loader to my index.as. But I can't trace the loader in my other classes.
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Feb 14, 2011
Coming from a Delphi background, I am used to be able to have class references/pointers of a specific superclass, example:
#!pas
var
niceVar: class of TClassOne; // Delphi style
badVar: class; // Only? allowed AS3 style to the best of my knowledge
begin
niceVar := x;
badVar := x;
niceVar.staticMethodSpecificToTClassOne;
TClassOne(badVar).staticMethodSpecificToTClassOne;
end;
What this means is that I don't have to cast my variables to a specific class; they are of the correct Class beforehand. This also means that compile-time checking can be performed to make sure proper members are being accessed and I don't have to check that niceVar is in fact of class TClassOne if niceVar was passed to a method.
[Code] .....
So just like a variable storing an object can be for a specific type and only objects of that class or subclasses of it are accepted, so to does "class of AClass" allow for variables of a specific class to be limited to references to a certain class or those inherited from it. I hope that makes sense somehow; I don't know of specific nomenclature for the whole "class of SuperClass" thing. So I'd like to do the same in AS3 as having variables/properties/parameters of type Class does not cut the mustard; its kind of like having all object variables/properties/parameters simply being Object instead of their proper, specific type.
What I'd like to be able to do
public function set recordClass(aRecordClass: TRecordClass): void {
_recordInstance = new aRecordClass(this); // Compiler will know that I am creating a TRecord
}
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Jan 12, 2010
This might be a dumb question. I think I already know the answer, just clarify. If you declare a object in varible1 and then pass the value into varible2. If you decide to null varible2 would that kill just the reference or the object itself as well. I want to say no, but then again, everything you do to the reference it self, also affects the space in memory.these are the 2 varibles in my class.
private var objects:Array;
private var viewableObjects:Array;
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Nov 4, 2010
ok so lines 2 and 3 are not real code. Im an old AS2 designer guy trying to learn to code all in the first frame. So how can I see if my var is set and leave it alone if it is?
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Jun 1, 2009
Why can't I seem to get a variable that is declared in an AS file to then be read from the FLA file?
AS File:
Code:
package {
public class theTest {
public var theString:String;
[Code]...
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Jan 7, 2004
Can I call a variable declared in a SWF, and call the same variable into another SWF, when i am loading it using XML.I am declaring a variable in the "Child movie", and am loading this "Child movie" into a "Parent movie" using XML. Can I retrieve the variable declared in the "Child movie" in the "Parent movie".
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Apr 24, 2009
I work with FlashDevelop, Flex SDK and FP10 debug. I am able to access a local variable (xcorner) which is never declared before, at the condition that it must be declared after... in an "if" for instance. If I remove the declaration of xcorner, within the if, errors occur at compilation, but otherwise it works.
PHP Code:
public function pushShape2Pool(name:String, sh:Shape, rotAngle:Number = 0):int{
[...]
// xcorner is NEVER declared before !!!
coordSprites[0] = new Rectangle(xcorner, 0, globalBmp.width, globalBmp.height);
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[Code] .....
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Nov 5, 2010
I saw following statement somewhere -var someVariable:*;Why is someVariable declared as * (star) type? What is the use of declaring it this way?
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Mar 12, 2009
I'm trying to access Flashvars that I declare in my HTML from a SWF that gets loaded after an intro animation.
I am able to access one of my Flashvars in the opening SWF just fine, but when the next SWF loads, I'm unable to access my Flashvars.
HTML Code Snippet: Code: Select all<script type="text/javascript" src="js/swfobject2.1.js"></script>
<script type="text/javascript" src="js/swffit.js"> </script>
<script type="text/javascript" src="js/swfaddress.js"> </script>[code].......
Am I not targeting it properly?Alternatively, I've tried storing the flashvars URL in a variable in my root SWF and accessing it from the loaded SWF, but I can't seem to grab it. How would I grab a variable that is declared in my root SWF?
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Feb 1, 2010
I have a problem accessing a variable which is to store a frame label. Code has been shortened to relevant parts. The following is on the main timeline.
PHP Code:
stop();var nextSection:String = "";buttonContainer.aboutUs.addEventListener(MouseEvent.CLICK, moveButtonsForContent);function moveButtonsForContent (evt:MouseEvent):void {if
[code]....
I have a movieclip called "sections" which loads different sections of the website.When the first section is clicked thencontainerCenter is true and the evt.target.name is loaded in to the nextSection variable.Now if a 2nd section is clicked then containerCenter is false. It plays the sections movieclip. Within that movieclip it will eventually play and come to the following script:
PHP Code:
gotoAndPlay(nextSection);
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Aug 13, 2010
how come i can't access a movieclip when i declare it as a variable? (note : this code is not the real code, so please ignore the syntax errors)
[Code]...
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Nov 11, 2011
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Sep 19, 2009
I want to know how to access a variable that was declared in a completely different frame. How do i make it global or whatever in as3?
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Jan 7, 2004
Can I call a variable declared in a SWF, and call the same variable into another SWF, when i am loading it using XML.I am declaring a variable in the "Child movie", and am loading this "Child movie" into a "Parent movie" using XML. Can I retrieve the variable declared in the "Child movie" in the "Parent movie".
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Nov 25, 2004
How come this PHP Code:
function drop (thumbClip, xCoord, yCoord) {
thumbClip._x = xCoord;
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trace (thumbClip);
trace (xCoord);
trace(yCoord);
}
receives the variables (specified in a later function) and traces them all right, but refuses to deposit the variable thumbClip in the x and y coordinates being specified?
I replaced thumbClip with a specific movie clip, and the fucntion worked perfectly. Does this mean Flash cannot use variables to set the x and y coords to?
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Jan 24, 2010
One thing that annoys me constantly is flashes inability to have proper variable scope - especially in for loops. For instance:
[Code]....
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Nov 25, 2004
How come this:
PHP Code:
function drop (thumbClip, xCoord, yCoord) {
thumbClip._x = xCoord;
thumbClip._y = yCoord;
[Code].....
receives the variables (specified in a later function) and traces them all right, but refuses to deposit the variable thumbClip in the x and y coordinates being specified?
I replaced thumbClip with a specific movie clip, and the fucntion worked perfectly. Does this mean Flash cannot use variables to set the x and y coords to?
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Jan 22, 2011
I sometimes see events declared near the top of the class (i.e. below the imports but above the constructor):
/**
* Description here
*
**/
[Event(name="complete", type="flash.events.Event")]
What exactly is this? Is this an "import" of a certain type of event?
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May 17, 2011
If you ignore all the extra memory overhead involved in storing variables (such as keeping track of property names etc)...How many bytes does Flash use to store a single reference to a "complex object"?And a related question (to avoid creating two threads):How many bytes does a String take up? I'm guessing one byte per character, plus an extra byte for the "end of string" character?
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Dec 25, 2005
These two functions are taken out of my as class file, even though the setInterval is never cleared it only calls generateParticles 1 time. Someone please help me figure this out. I have been messing around with it over an hour but still can find why its only called once. emit is a private var Number declared outside the function in the class.
[Code]...
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Jan 19, 2007
I've got a class where I'm using:
o.type = "focus";
o.target = "this";
dispatchEvent(o);
and then focus is a function of an object in the FLA.
I want focus to be in the AS External Class file but it won't trigger.
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Dec 18, 2008
When debugging, I see an objects memory reference next to its value. Is it possible to get that as a string or assign a variable based off memory location?
var myInt:int = 5; debugger shows(@afff222)
var copy:int = memor(@afff222);
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