ActionScript 3.0 :: Working With Nested DisplayObjects
Apr 2, 2008
I'm creating my first AS3 project and I've already hit my first snag, nested display objects (aka buttons and movieClips). Let's say you create a movieClip and place buttonA on frame 1 and buttonB on frame 10. You create a class for that movieClip that tells it to jump to frame X after evoking a custom method. With the same method you want to assign the buttons on that frame their functions, but you can't because Flash thinks that DisplayObject does not exist. How do you make sure all DisplayObjects for a frame have been loaded, so that you can reference them?
I have figured a way around it by using the ADDED event listener. Apparently this event is triggered every time any DisplayObject is added, whether it is nested or not. What's interesting is the number of children (numChildren) for the parent movieClip stays constant. So, this code takes advantage of that fact.
[Code]...
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Oct 15, 2009
I am "old style" guy who still use Flash authoring environment as I believe working with graphics this way is easier than scripting all the things in document class..So, I have created in Flash authoring a movieClip with a graphics nested in it. Actually, this graphic is composed of two other nested graphics:
Graphics_
Graphics_C
/
[code]....
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Apr 21, 2011
I'm working on a world builder that will load a toolkit which is represented by an xml document. The document will look similar to the following:[code]Now, I want to be able to represent this structure in flash. Vertical layout is easy enough, simply placing the elements from top to bottom. It gets mind-boggling when I need to do the following:Be able to click any folder and have all its children hidden/shown.Position the elements horizontally based on hierarchical position (indent children of folders, children of the child folders, etc)Position the folders/tools vertically when folders above and in the same "directory" are hidden.It either sounds a lot easier than it is, or I'm missing a vital and obvious step.Just to save confusion - when I make reference to "folders" and "tools", these are a MovieClip which is a simple block with text over it, like:[code]
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Mar 14, 2012
I initially posted this in the AS3 NEWBY forum but I think it probably belongs here. On stage I have 5 boxes, the letter A and two buttons labelled button1 and button2. The letter A is also defined as a button labelled AA_btn. When I click on button1 I want a condition to be set so that if the letter A is clicked, boxes 2 and 4 will disappear. Conversly if I click on button2 I want boxes 1, 3 and 5 to disappear. To do this I have nested the letter A and B functions under the button1 and button2 functions.
I also have a reset button which resets the display of all five boxes back to their original display.Everything works fine when I press Button1 to set the first scenario. When I then click on the letter A boxes 2 and 4 disappear. (perfect). Everything also seems to work when I press the reset button, ie: all five boxes reappear.
[Code]...
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Dec 25, 2011
I have 3 movieClips call A,B and C, and added to stage one after another, in a nested manner. where a is parent of b and c, b is parent of c and child of a.However I get an error after trying to add child to movieclip c into b?[code]
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Jan 13, 2011
I have a simple getURL on a movieclip. Looks like this:
Actionscript Code:
var galURL:URLRequest=new URLRequest("gallery.html");nav.gal.addEventListener(MouseEvent.CLICK, onClickGal);function onClickGal(evt:MouseEvent):void { navigateToURL(galURL, "_self");}
there seams to be some problem with the getURL functionality when it is not on the top level. how to address this? I did a search for the topic but the spinny applet just keeps spinning and spinning when I hit search.
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Dec 7, 2011
I have two scenes on my flash file viz., Scene 1 and Scene 2.
I have created one nested button i.e., button inside the movieClip and one normal button as in the following code.
ActionScript Code:
jan_btn.onPress = function() {
gotoAndStop("Scene 2", 1);
}
[Code]....
The problem is the first button jan_btn works and it goes to Scene 2 when it is clicked. But the second nested one i.e., button inside the scroll_mc movieClip is not working.
I have kept jan to dec buttons inside scroll_mc movieclip (it will scroll) and kept on stage.
Why nested button i.e., button inside movie clip is not going to Scene 2 when it is clicked?
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Apr 10, 2010
I have 2 nested move clips in this order.
mc_a (grand parent)
mc_b (parent)
[Code]....
Now, I have a button on the stage. I am trying to load mc_a on stage using the linkage, and trying to load an image that replaces c_inst.
I am using:
on(release)
{
_root.attachMovie("a_call", "a_called", 1)
_root.loadMovie("image1.jpg", _root.a_called.b_inst.c_inst)
}
But so far it only attaches the movie, doesn't load the image.
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Feb 18, 2009
For some reason I can't get this nested set of functions to work, it executes the first tween and the tween invoked after motion of the first is finished but it doesn't ever get to the third!
ActionScript Code:
var t1:Tween=new Tween(p1,"rotationY",Strong.easeOut,90,0,50,false);
var t1x:Tween=new Tween(p1,"x",Strong.easeOut,-900,0,50,false);
t1.addEventListener(TweenEvent.MOTION_FINISH,onMotionFinished);
[Code].....
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Sep 29, 2010
I have a button that is inside a movieclip, which is in turn inside another movieclip. It seems that my event listener is not firing when the button is clicked. I set up the listener:
[Code]....
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Jan 28, 2010
I can usually fumble my way through things *and i usually like to figure things out on my own* I did find a few other threads on this, but the only conclusive thing i came across was the _lockroot = true; which works beautifully.. untill u navigate to the drag and drop portion.
[Code]...
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Apr 5, 2010
How can I use displayObjects as animation frames?I have six symbols in my library I want to animate with a timer. The advantage would be the ability to change the speed of the animations, and the elimination of the messy timeline.
The only drawback is the initial setup of the objects in the library. I've tried switch/case design patterns, visible=true, and z-depth, but I can't get it to work properly. Any answers?
//setup code
var timer:Timer = new Timer(100, 20);
timer.addEventListener(TimerEvent.TIMER, countdown);
function countdown(event:TimerEvent) {
[code].....
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Oct 12, 2010
How to copying display objects (sprites, movieclips etc) while keeping thier content (graphics, added display objects etc)in AS3? The most commonly suggested solution by Kirupa (
[Code]...
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May 21, 2011
I want to create swf file without any DisplayObjects. All it has to do detect Events and save a Log. My main Application will load it as external swf file.
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Feb 3, 2012
there is a Class A, it has a timer which updates its x position periodically. So all the instance of Class A will update their own x position. There is another Class B which extends Class A and overrides the function which updates position to change y position and call the trace function.
Now what I do now is create two instance alpha1, alpha2 of Class A and other two instance beta1, beta2 of Class B.
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- alpha2 is instantiated, and there after added to the stage.
- beta1 is only instantiated, but not added to the stage.
- beta2 is instantiated, and there after added to the stage.
- let say after few seconds, I remove alpha2 and beta2 from stage.
Now suppose the GC fires collection, who all would be collected ?
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Apr 20, 2009
I've got another interesting Flash issue, and I was wondering if there was some weird case I had to account for. Here's the code: var c:DisplayObject; var t:Rectangle; c.width = t.width; trace(c.width, t.width); This results in output of: 0 13 I'm expecting '13 13' as the output..what would cause this to happen? It's sporadic, sometimes it'll happen, sometimes it doesn't. Is there some weird race condition I should double check for?
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Jan 5, 2010
I am adding DisplayObjects to a Canvas using
ContentContainer.addChild(c);
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I then need to iterate over all the children of ContentContainer but the first time I do this, it says that ContentContainer has no children (i.e., ContentContainer.numChildren = 0). If I do it again tho then it is fine and returns the correct number of children. Is there something I need to call to get ContentContainer to recalculate how many children it has?
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Jan 27, 2010
I have an array of Sprites on stage and want to now the rectangle that bounds them. I could do a loop and check each element's getBounds() but that could be computationally expensive.
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Oct 10, 2010
I am very new to AS3, and I'm confused about how things that would have been simple in AS2 are so complex and tricky now. For example, I want to create a bunch TextField objects that, for some reason, rise up every frame (as in : object.y-=1; ).However, I also need each TextField to reference the TextField that was created just before it.
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Mar 18, 2011
ActionScript Code:
private function drawMap(tile1:DisplayObject, tile2:DisplayObject):void
{
var _tile1 = tile1;
[Code].....
The idea behind this is to store custom sprites in an array and then feed the array to the drawMap function, which would use the sprites from the array to draw a map.
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Jul 20, 2011
why Bitmaps are not considered children of displayObjects (at least from my observations, I think this is true). They themselves are displayObjects so therefore should be part of the display list. In fact, when multiple Bitmaps are in one MovieClip, it recognizes them as one child, a Shape instance. Could anyone explain this to me? I'm attaching an example with a few display objects in a movieclip.
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in menu item class MOUSE_OVER handler: dispatchEvent( new MenuEvent( xml.@label.toString().toUpperCase()+"over") );
in "site button" class constructor - the thing I want to respond to your hovering over the menu by brightening (which over() does) :
addEventListener( xml.@label.toString().toUpperCase()+"over", function( e:Event ) { SiteButton( e.currentTarget ).over(); } );
It doesn't work. I screwed around with capture and bubble parameters.
how to do what I want in a simple way? I spent 2 hours already trying to figure this out.
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Sep 24, 2010
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Code:
var currentTileIndex:int = 0;
function renderNextTile(e:Event):void{
if(currentTileIndex < tilesToLoad){
loader = new URLLoader();
[Code] .....
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Jul 12, 2011
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What I need to know is, which event (something opposite of show, e.g left?) could be used when the screen is replaced by another display object?
Something like focusIn and focusOut from dotnet.
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Feb 21, 2012
How does Flash deal with elements that are off-stage?Obviously Flash doesn't actually render them (because they don't appear anywhere on-screen), but is the process of rendering them still existent, slowing down my game as much as it would if the elements were on-screen?
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Jul 31, 2009
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Feb 15, 2011
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