ActionScript 3.0 :: Use Stage SubClass As Root / Parent
Dec 19, 2010
Is there a way to tell flash to instantiate a Stage subclass called "TheStage" instead of the default Stage class as root/parent of my document class?
public class TheStage extends Stage{
//code
}
Then when I do "DisplayObject.stage" I want it to return the instance of TheStage instead of the default Stage insteance. I want to do this so that I can override the addEventListener method of the Stage class. So if I call DisplayObject.stage.addEventListener I can execute my own code routine. Is that possible and how?
Can I access a static variable of a subClass' subClass? I don't want to instantiate it, just looking to get the variable because it has already been initialized by the subClass.example:
package { public class A extends MovieClip { private var classB:B = new B();
I have a MainClass from where I can call Stage. In the MainClass I call another class named Subclass, and in that one I call my ThirdClass. ThirdClass is initialized fine, but my problem appears when I want to call the Stage within the ThirdClass, to align the Stage. When I compile I receive the message: 1119: Access of possibly undefined property align through a reference with static type Class.
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);
I cannot use the following in my ActionScript due to conflicts with the host application:
_level0 _root _parent references
On a pop-up box I have a close button with an absolute reference: closeBtn.onRelease = function{ unloadMovie("_level0.Page_1.holderBox");} Is there another way to make this work without using _level0 or _parent? I've read that it is possible to use a global variable on the main timeline and ref that, but cannot get that to work.
I am calling on different types classes from within a loop. The objects can be of different types so therefore I am using the getDefinitionByName method. here is a piece of my code:
for(var y = 0; y < mapH; y++) { brickHolder[y] = new Array();
[Code]....
But I got an error when I tried to call on methods. The interface is blank; doesn't have any methods in it. I am not sure if that makes a difference. But the parent class inherits it and the subclasses inherit the parent class. Can I instead use the parent class?
var brick:ParentBrick2 = ParentBrick2(new classRef());
In a nutshell, what can I do to loosely cast these objects so I am able to use any subclass methods that get called?
I am writing a program in OOP and I have a custom subclass which I make a new instance of in the document class. When I do make a new instance of this custom class, I want this (the custom subclass is a movieclip) object to be positioned at the center of the stage. However, when I try
I've defined two classes, one of which extends the other. The superclass defines a constant and I can't seem to access it through the subclass.
Code: public class BigClass { public static const BIG_CLASS_CONSTANT:String = "Hi Mom.";
[Code]....
Shouldn't polymorphism allow a subclass to access constants of the classes they extend? Does the subclass have to reference the parent constant in some other way than a simple extension? Do I actually have to declare that constant in each and every class that decided to extend from that parent (but then how would the parent refer to it?)? Or (and this is the most likely) is there something completely different that I'm missing?
I have a root stage, and a MC that is called from the root stage.Now from that MC, i will called in another MC2, and I wanted to placed the MC in the center of the stage. The reason I could not use normal ADDED_TO_STAGE at MC and define the center is because MC is not place in the exact position of the root stage (as in x, y=0). So if I would target MC2 at MC stage center, it would not be the exact center of the root stage/screen.How can I called the root stage properties rather than adding MC2 into the stage?
I'm running into the situation where I can't instance a SubClass in the above SuperClass because the SubClass is extending from the SuperClass.
I get stack overflow. Fair enough, right?
Well, I want to add this SubClass to the display, and the only way I know how to do that is through addChild(). To addChild() I need to instance the SubClass.
I can't put any visual display instance or events in this subclass because it's currently null and extends is keeping me from doing so. It's great cuz I can share all the goods, but now I'm stuck dancing inside functions because I can't use events on the main "timeline" of the null SubClass.
I'm playing around with some classes from my Learning AS 3.0 book in an attempt to understand them. I have a main (document) class, and a class called NavigationBarXML.
Because the buttons for the nav bar are all set up in the subclass NavigationBarXML, I would like to position the nav bar relative to the stage (think btn1.x = stage.stagewidth - 50) from within this class. I understand that you cannot deal directly with the stage from a subclass and that you must add it to the display list before you can reference the stage from within this class.
How would I set up the main class so that I can reference the stage from my subclass so that on browser resize, my nav bar is positioned relative to the stage?
if I add a clip to the stage as a child and remove the parent and set the parent equal to null, does the child get collected and removed from memory? What if the child has an image loaded into it as its child?
In my application I'm loading a series of png images as overlays that can be tinted for customizing in this app. When I trace my memory, the basic app idles at 64,000 k. The exact second I load those overlay images it goes up to 205,000k. If I remove those clips and "clear" the stage I should go back down to 64,000 k if everything is removed and collected correctly, right? It's not, it's hanging at 215,000 k. Are my images being cached and that is the reason for the memory staying up? If so, how do I prevent that. Or upon removing the parent of the image how can I un-cache the image.
If a user switches between models and loads several different items then the application actually crashes the Flash environment because of too much memory usage. It also does the same to browsers.
In my flash document, I have a movieclip drawn on the flash stage (put there myself, not dynamically). I want to use this as a holder for an external .swf. I am using a sub-class to run the loading script. I pass the stage reference to it as the variable "theStage". It has no trouble loading things directly to the stage, but it can't find my movieclip for some reason. I have exported the movieclip for actionscript in the symbol properties panel and have given it an instance name.I've tried theStage.myMovieClip.addChild(mySwf); and suchlike, but always get this error message in output:ReferenceError: Error #1069: Property myMovieClip not found on flash.display.Stage and there is no default value.at MethodInfo-206()Some more information: It works from the main class without any trouble.
I have a main flash movie that loads three external movies, the external movie buttons don't work when loaded onto the stage. In each external swf thats loaded, the button actionscript is in this form:
HTML Code: on(release) { _root.gotoPage(2); }
And this works when each swf is loaded stand-alone. But not when loaded as an external swf.With the numbers ranging from 1-19 as far as pages. How should I edit the code so that these buttons work when loaded externally?
I am trying to create a global function to reuse repetitively. It worked until I moved the function to the external .as file. The problem is with MovieClip(root) and MovieClip(parent). They do not work and cause errors.
I'm switching from as2 to as3 and everything was going swimmingly with my new site until i tried to use a _root call to a function on the main timeline by a loaded movieClip that is loaded nested into 2 other movieclips. the movieClip needs to tell the _root when it's done playing so the root knows to load the next one in line through a php call. Everything works except for the _root call. In as3 there's no such thing as root anymore so I figured no big deal, i'll just find out what the new thing is and holy crap wtf! I can't figure this out!! I've read from doing stuff like custom eventLisnters (which i am trying now) and casting the root as a movieClip and then I read this whole crazy tutorial on building an event structure and the proper MVC way of coding and blah blah blah ALL I WANT TO DO is tell the _root that the loaded MC has reached the end of its timeline. Basically if it were as2 i could just go _root.loadNext(); and it would work.how to make a loaded MC talk to the _root timeline and call a funciton from there?
I'm using a PreLoader as a parent SWF that loads the actual website as a child SWF. In the website SWF, the child SWF, will MovieClip(root) still work and refer to it's own root, or the PreLoader's root? And would I still access the websitite's document class (the child's document class), through MovieClip(root)? What if both files have a document class?So my main question is how do document classes and MovieClip(root) behave in the scenario when you have:
i am slightly confused about the parent and child relationship. lets assume we have several different instances, what would be difference of adding them all as children of the stage and creating a parent-child hierarchy between them(other than the access path).
I have a class called shapeC that only creates a rectangle and then addChild(rectangle);. That class is instantiated on the main timeline. Currently, the only way you can see that rectangle is to add the instantiated class to the stage via addChild(shapeC);. My question is, is there a way that the shapeC class can add the rectangle to the root stage without requireing the instantiated class to be added to the stage?
Okay, I did a search on stage and got a lot of forum threads going in different directions about static and global variables. _root to my understanding no longer means the main timeline, it's the root of...what? and how does this relate to the stage? Is the stage there or does that need and addChild() as well? Like, overall I guess my main question is, "What is the proper way of incorporating stage and root in document class structure?" I built my entire site using the structure, but I learned halfway through that I had to use addChild() to make it a display object. I'm trying to get this down so next time I get it right.
I have an swf file, MyRoundButtons, which is a set of radio buttons I built (not components). It works fine, but if I import it into a parent it won't work anymore. I have to write a script to load it into a movieclip, (which I hate, because I'll have a several different swfs to assemble on my final stage. I really want to see them all on the stage together, not just at runtime.)Even when I load it into a clip and the buttons work, however, it doesn't seem to have a separate timeline when double-clicked ,and: I can't make the imported buttons control the timeline of the parent. I defined a test function:
Frame "nirvana," in th parent, has a Trace instruction in it.goToNirvana works on its own in the parent. Now to call the function from within the child:
Code: Select alltv_btn.onPress = function(){ gotoAndPlay("TV"); // That last part triggers the button's down state and sound in the child timeline, in frame "TV."
[code]....
Whether I define that function in the child, the parent, or both, the instruction won't work. Now, I'd prefer not to do the loadMovie thing at all if I can avoid it, I'd rather have fully rendered button clips onstage at authoring for me to arrange and move about, with fully independent timelines right there. But you see what I'm trying to do. I just can't get it done.
The code below returns the error message "Error 1120: Access of undefined property stage."
function select(event) { if (event.target.name is Stage) { currTool.target = null; } else if (event.target is Sprite) {
[Code]....
I understand the reason for the error is because I'm trying to access the "Stage" when I'm not at my Document Root. The question I have it how do I do this same thing when I'm not at the Document Root?
