ActionScript 3.0 :: Reference A Variable Made In One Class To Another?
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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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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Feb 15, 2011
I want to make an Integer variable in my AS3 script to be rounded up to the nearest 0.5 decimal. For example 3.35 should be 3.5 and 3.87 should be 4.0.
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May 8, 2010
I have been searching for ages and just cant find out how to do this. i have set a boolean variable inside a movieclip and would like something to change outside the movieclip, using an if statement, depending on whether the variable is true or false, but cant find out how to do it anywhere.
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May 25, 2010
How do I reference the variable pointed to by the variable text but pointed to by more than one function?Say I have:
engine_level = 5;
tank_level = 3;
v_name = 'engine';
[code].....
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Apr 29, 2009
Anyone let me know wether if pixel calculations are made swf files and when they r made to fullscreen wether they will remain the same in any monitor size?
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Jan 5, 2012
How do I reference the variable pointed to by the variable text?
Say I have:
engine_level = 5;
v_name = 'engine';
pb_name = v_name + '_p_button'; // so pb_name = 'engine_p_button';
level = v_name + '_level'; // so level = 'engine_level';
[Code]......
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Sep 12, 2009
I'm using the following code to arrange indexes of objects on the stage the only problem is I can't access an Object that has been made in a class in an external AS document. if i go into the document and trace I can see it but i can't access it from the document class and arrange its index anybody have any ideas?
[Code]...
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Jul 16, 2009
I have to know if a public method has been called from outside the class or from inside. The reason is that depending on this, one of the actions to be executed in this method vary a bit.
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Oct 7, 2011
I drew a line (stepVoltage) in a fla using the graphics class. Once drawn, I want to move it to the right in an update function, but am having trouble. I tride just moving the line with statements like stepVoltage.x = newX; stepVoltage.y = newY; but this didnt work. Then I tried to delete the previous line and draw a new one with a clear () function (see below) but this blocked the next drawn line from showing up.
The code:
var stepVoltage:Shape = new Shape ();
stepVoltage.graphics.lineStyle(2,0x000000);
addChild (stepVoltage);
[Code]....
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Jun 28, 2011
i have some actionscript that makes a
ExternalInterface.call('someFunction');
call.is it possible to reference the html object that made the call to someFunction directly using the ExternalInterface.call call?
Assume that the object that makes the call also has some Callbacks (via ExternalInterface.addCallback) that are accessible via javascript.
Currently:
Actionscript source
ExternalInterface.call("someFunction");
ExternalInterface.addCallback("someCallback",someASfunction);
[code]....
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Aug 19, 2009
I have a bit of code that calls a custom class that I made in flash. Basically when you roll over this logo I have a function that makes a new instance of a custom class and calls it to the stage like a little pop-up text when you roll over something. Then when you roll off of it I remove it from the stage. The following code is for the first pop-up text.
[Code]...
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Jul 28, 2011
Using Flash CS5 Professional I have created a symbol, dragged it onto the stage, and given it an instance name of GreenLight1. If I want to make this visible from the document class, I can simply do the GreenLight1.visible=true; and poof it's good to go when I test the file. As long as I stay in the document class I am good to go, but now I'm trying to move to another class and hitting ALL kinds of trouble just trying to get Flash to allow me to access this simple object. All I am looking to do is have this GreenLight1 go invisible (visible=false) when a certain condition occurs in this new class and Flash just won't let me access GreenLight1 at all. Things I've tried thus far:
stage is passed to the class and is referenced by _stage and is working just fine when I do _stage.addchild or anything like that. So I have tried "_stage.GreenLight1.visible=false;" and I get "ReferenceError: Error #1069: Property GreenLight1 not found on flash.display.Stage and there is no default value." My document class extends Sprite, so I figured I'd try the root function. So I tried "Sprite(root).GreenLight1.visible=false;" and I get "1119: Access of possibly undefined property GreenLight1 through a reference with static type flash.display:Sprite." I tried to create the Resource class as described therein. To which I came across the same problem that I started with in that it doesn't know what GreenLight1 is to begin with so I got "1120: Access of undefined property GreenLight1." Here is my code for Resource.as (am I supposed to pass something to this class from the document class?)
[Code]...
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Dec 7, 2009
Is there a way I can reference a Movie clip I have on the main stage from a custom class of a document class?[code]
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Dec 8, 2009
Is there a way to refer to a Movieclip on the stage from a class file of the document class
Lets say I have 3 MovieClips on the stage(a Circle, a Square and a Triangle)
I have the document class which calls another class that controls the MC on the stage
Example
ActionScript Code:
package {
public class Example extends Sprite {
//Create the instance of the class being called
[Code]....
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Jun 28, 2010
Given that both of these calls to getQualifiedClassName return the same thing (mx:Label), how would one go about programatically differentiating between an instance of a class and a reference to the class...
var lab1:Label=new Label();
var lab2:Class=Label;
var qcn1:String=getQualifiedClassName(lab1);
var qcn2:String=getQualifiedClassName(lab2);
In other words, how could I know that lab1 is of type Label, while lab2 is type "Class". typeof() simply returns "object" for both... getQualifiedClassName returns "mx.controls::Label" for both...
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Jul 21, 2011
I am doing a looping background with 2 identical BG movieClip (B1 and B2). Those 2 are "new" by the same class.
var B1:MovieClip = new BG();
var B2:MovieClip = new BG();
But because this BG class picture is loader from the internet and the picture is rather big. When I addressed its loading by using progressEvent. The picture is really loaded 2 times. Is there anyway I create B2 based on B1 without using new BG() again? Since it definitely makes a new BG with Loader code inside.
[Code]....
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Jan 8, 2012
The question is a bit silly. I am trying to implement a skill updating system. So to explain.There is a class
class AppInfo
{
public static var power:int = 10;
[code]......
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Mar 15, 2006
I want to retrieve the var reference of an instance of a class from within the class. For example:
ActionScript Code:
var ref:MyClass = new MyClass ();
//then via some method, I would like to get the var ref inside the class
ref.getRef(); //returns "ref" instead of [object Object]
[Code]....
You may ask why, well I want to do some spring cleaning inside this manager class I am making. Of course the above is a simplistic version of what I am trying to do.
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Jan 7, 2005
how can I self refer to an instance of a class within the class definition file?Here is an example
PHP Code:
public function fireBullet(target:MovieClip) {
Bullet_mc = target.attachMovie("Bullet", "Bullet1", 1);
}
}
Now everytime I want to call the function I have to put this as my target, (fireBullet(this))I cannot just put it in the code as it gives me an error.
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Oct 20, 2009
I want to be able to reference the text of a text box within an MCThe MC is called "box1", the text field is called "field1"...I have many MCs (all with field1 in them)... box1, box2, box3 etc etcObviously I can set the text to being something by saying...box1.field1.text = "set_this_text"However, I'm using a variable to come up with the "box1" bit. (Using an array and a loop to figure out which box I want to update based on where the user clicked). So, let's say I have a variable... and I want to say..boxClickedon = box1 //will be defined by userSo I don't know in advance about box1... I can only access it through "boxClickedin" variable, but
boxClickedin.field1.text = "set_this_text"
or
[boxClickedin].field1.text = "set_this_text"
[code]....
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Mar 2, 2010
Is there a way to reference a function via a variable? In other words, instead of saying something like:
var theVar = someString + 'function';
if (theVar == 'functionName') functionName ();
to access it directly:
(someString + 'function') ();
using some kind of bracket notation?
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Jun 9, 2009
Using AS2. I have a variable defined:
activenav = "services";
I then want to reference the variable in a MC string. I've tried many variations of this:
_root.my[activenav]Clip.gotoAndPlay("Out");
Essentially, I want Flash to see this as:
_root.myservicesClip.gotoAndPlay("Out");
Getting syntax error.
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Apr 9, 2010
i have a function that read a variable from a text file, yet i can only read the variable from within the function. How could i create a global variable or such that i can then read from outside of the function.
Code:
var Make:LoadVars = new LoadVars();
Make.onLoad = function() {
VARIABLE = Make.textVariable;
[Code].....
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Nov 12, 2011
The scene is a number of movie clips, all already added to the stage (i.e. not dynamically) and when one is clicked, I need to call a property of that clip. [code]...
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Oct 14, 2008
How do you use a variable value as a reference to aMovieClip?I'd like to do this:
A2.visible = false;
myVar = A2;
myVar.visible = true;
[code]......
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Jan 31, 2008
I am trying to write an attachMovie statement with a variable feeding the ID parameter.[code]...
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Sep 25, 2009
I want to loop through an array and use the array value to reference a variable. The Setup:(For illustration only. Not actual script)
[Code]...
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Aug 22, 2011
Can you have "ByRef" arguments in AS3 functions?
Primitive types in AS3 pass by value instead of reference. Is there a way to override that behavior and pass by reference for certain variables? [code]...
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