Actionscript 3 :: Make Static Method Act Over Object Of Its Class That Is Already On Stage
May 13, 2011
Is there a way to make an static method act over an object of its class that is already on the stage, without using the keyword "this"? I mean, like "generic object of this class: do what I'm telling you to do, wathever your instance name".My goal is to create an method that get called by any object of this class, based on the changing on the value of an external variable, but since I cannot use the "this" keyword to reffer to each instance, I could not figure out a solution.
I'm tryng to make a public static method call another method, but Flash throws error 1180, sayng that the method called by the static method is undefined.
The following is that long only because I gave examples of what I want to know, not because it is complex .I have three basic questions regarding AS 3.0 classes.
1. How can I make a class object interact with an object on stage?
For example, when I have a square (mc_Square) with class "square" attached to it and I want it to trace "Colliding!" and print the X and Y of the mc_Box on contact with an on-stage *hollow* box (mc_Box) that has no class attached to it.how to do it vice-versa would also be awesome .
2. How can I make a class object interact with the same class object? For example, when I have two squares (mc_Square) that both have the class "square" attached to it and when they collide, it prints the X and Y of both of them.
3. How can I make a class object interact with a different class object?
For example, when I have two squares mc_Square1 with class "square1 (that also has a variable Primary=true written in it)" and a mc_Square2 with class "square2"; When they collide, the one with Primary=true would be removed and it's X,Y position traced.
i have to read the current class name inside a static method. For non-static method it's easy i just call getQualifiedClassName(this) but inside a static method this is off course invalid.
When I type a class name without new before, FlashDevelop does not show autocompleate. Is it a way to enable that feature? (do you have the same issue?)
If all I have is an instance of an object, can I call a static method of its class? For fun, let's say I don't know what the name of the class is, only the name of the static method.
My method has been passed a class instance, but it was typed through an interface so I'm not 100% sure what class it is. I'd like to attempt call a static method on that instance's Class.. is there an easy way to do this without being forced to pass the class along as well?
Something like this:
ActionScript Code: public function foo(myBarInstance:IBar):void { var barClassPointer:Class = getClass(myBarInstance); try {
In the following code (thoroughly debugged) the first case (1) in the switch is met and a new instance of BannerSingle is assigned to retVal (the return value). Unfortunately, while the second case (2) is never met, the assignment therein to retVal takes place and I can't compile. When I comment out the assignment to retVal for "case 2:" everything works fine.
I've tried using an if/else instead and I still get the same odd behavior. Also tried a number of solutions involving separate variables, etc.
Error: Access of undefined method getStatus through reference with a static type Class.
Here's what's happening in the code. I'm trying to create a User class that is instantiated at the start of my app. I want the User class to have properties like mainStatus, with helper methods like setStatus etc. Pretty simple.
so on my HardDisk I have my flash_working folder with all my flash projects. I created my class file/package under the directory com.mypackage
[Code]....
That's all the code I have.
If I try to access the public var mainStatus through user.mainStatus that gives a similar error saying:
Error: Access of undefined property mainStatus through reference with a static type Class.
I wrote a singleton class to keep track of some variables across my application.
I am getting a syntax error that I can't figure out, I am sure that I am missing something simple but it's been one of those days. Anyone see something wrong with my code?
The error is 1061: Call to a possibly undefined method setResult through a reference with static type Class.
My function in my singleton class
public function setResult(resultNumber:int, value:int): void { switch(resultNumber) {
I have the actionscript code here for a bubble popping game. When the game starts, bubbles fall down from the top of the game to the bottom and score is kept for the most bubbles clicked or popped in 30 seconds.The size of the bubble is defined by the initialize method in the code, and uses ToString() to calculate the score. ToString gives me a 1061: Call to a possibly undefined method Random through a reference with static type uint. This error which I cannot figure out where it comes from.[code]
I get the above error. I did actually change a little code because I put it in it's own class.I call the below ShuffleArray class in my main doc class as follows:
I've been using Adobe Flash CS4 for a couple of days. I've drawn a worm, with eyes and a mouth and these pieces are all MovieClip symbols. I have exported them to actionscript with the class name being the same as what they are (ie. the mouth MovieClip is exported as mouth). The mouth has 2 frames, one smiling and one frowning. I need to mouth to stay smiling at first, so in Frame 1 actions I wrote:
I see where i was going wrong however when i change the instance name like you said i 1120: Access of undefined property snakePart. all of this code btw is at document class level and the movieclips are in the library not on stage
I got this Error : 1061: Call to a possibly undefined method addChild through a reference with static type Class.
what I'm trying to do :I have create a new class called Graph and make it extends Sprite and add a scroolpane to my stage and make an empty movie clip called content_mc and make the source of the scrollpane equals to content_mc
in the first frame i wrote this code
import Graph; var graph:Graph = new Graph();content_mc.addChild(graph);
I have a static utility class that must have a reference to the stage, and I'm not sure what is the best option for me to get the stage inside my class...
I've thought of these options:Pass in as a parameter of the function Have a static variable I can set to the stage I don't like either of these because they are ugly.
What methods can you suggest for me to get a reference to the stage in my static class?
I need to know when an element is added to the stage (using main document class). So i use :
Code: public override function addChild(__child:DisplayObject):DisplayObject{ super.addChild(__child); trace("child added"); return __child; }
Which works fine. I also use a static class, to which i pass the stage using :
Code: public static function setStage(__stage:Stage):void{ _stage = __stage; }
But if i add to the stage (_stage) a MovieClip from the static class, my "real" stage doesn't seem to get that something was added. So i guess _stage !== stage. So why is this happening, why is _stage not getting the methods of stage ?
I'm currently writing a feature for an interactive periodic table which dynamically displays the name of the element and other properties when you hover over the element. I have thought of three ways to do this and I am wondering which is the best, memory-wise and speed-wise, for loading this information.
make a class with an array ( new Array("hydrogen", "helium", "lithium",...etc.)), instantiating it, then accessing the info with object.arr[i] make a class with a static array (otherwise, same as no.1), importing it, then accessing the info with class.arr[i] put the information into an external xml file and accessing it from there. The 3rd method seems excessive as you have to go through the hassle of adding event listeners for URLloader every time. Is there any difference between the 1st and 2nd way? (What is happening in terms of memory when you are importing a class - is the entire array added to memory?)
I have a SendData class that sends form info to a php script. It is a static class that does not extend anything.
I want to be able to dispatch an event if there is an error, or when it gets info back from the server. I have a custom event class that I have been using to dispatch events like this, but I have only used that in displayObject extended classes.
The problem is, it seems like something has to be a displayObject based class to dispatch events. I know there must be a way to do this, but I'm having trouble finding it in searches.
If I only instantiate a class once should I make its vars static? I understand how this is of benefit if I make multiple classes, clearly you use less memory as it creates a reference to the same place for each class. Are there any other benefits for creating static vars or functions ?
For example I have my class 'MainMenu' which I create once (might even be my document class). In it I create a Code: private var someHolderForStuff:Sprite = new Sprite();
Should I rather create Code: private static var someHolderForStuff:Sprite = new Sprite();
I want to make a static function that I can use in all the custom classes.It should be some kill(); function that would remove the object from the stage as well as removing its event listeners. I made it in Document class, and it didn't work. Here's the code:
ActionScript Code: public static function kill(e:DisplayObject) {[code].....
I have downloaded Box2d ([URL]) and created a project that looks like this: [URL]. catalyst is the green cube and it has the base class "shapes.box", it is inside "world" which has the base class "wck.World". What i want to do is to add another "catalyst" from the library inside "world" when i click on add_btn. I tried to accomplish this by this code:
[Code]...
Symbol 'buttons', Layer 'Actions', Frame 1, Line 41061: Call to a possibly undefined method addChild through a reference with static type Class.
I am using AS 3 Flash CS4, WIndows XP SP3. I am unable to use the Mouse.hide(); method in many of my scripts. If I add Mouse.hide() to a preexisting script, I get the following error; line1 1061: Call to a possibly undefined method hide through a reference with static type Class. If I add Mouse.hide():void; to a preexisting script, I get the following error: line1 Label must be a simple identifier Once this has happened, if I then remove ALL lines of script from the file...but leave the Mouse.hide(); [or Mouse.hide():void;], and also remove all objects from the stage, when I run the file, I still get those same errors.
two classes, both extend EventDispatcher. Static method in 1st class calls instance method in 2nd event not getting caught. [code]also, since dispatchEvent() is an instance method, is there any way of calling it without first instantiating the class? i expect not.
I'm having some troubles with the use of interface and inheritance in AS3. I've done lots of OOP in the past and what I'm trying to do seems obvious to me, but doesn't work in AS3. The question is : Is it possible to override a function that return an Object of class A, and make it return an Object of Class B which extends A ? It seems not to be possible, since I'm getting a signature error in Flash, when compiling. For example, the following set of class do not compile (the code in function definition doesn't matter):
