Actionscript 3 :: Removing An Event Listener As Well As A Sprite At The Same Time?
Apr 4, 2011
I'm having trouble removing the an event listener as well as the sprite at the same time. I currently get an error:
TypeError: Error #1009: Cannot access a property or method of a null object reference.
And if I comment out removeChild, I have no error but, obviously, the sprite remains on the screen. how I can rid myself of that error?
//Bullet extends Sprite Class
bullet:Bullet = new Bullet();
mc.addChild(bullet);
[Code]....
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In the following code...
Code:
function makeTheCall(){
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[code]....
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Mar 15, 2010
I am working on a game for my university project and I have run into a bit of trouble. I have the following code here:
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[Code].....
Its set up so that when a ball goes off screen, it resets to a coordinate and launchBall is called.
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Dec 7, 2009
I'm trying to build a scrolling thumbnails from scratch for my first time and i can get the thumbs to scroll when the mouse rolls over the scroll arrow, but i can't get it to stop scrolling once the mouse rolls out.
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[Code]....
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Mar 20, 2012
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import fl.transitions.Tween;
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import flash.events.MouseEvent;
[code]....
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Jan 28, 2011
I'm trying to build a small game to try and get into ActionScript. This is my first real attempt at ActionScript.Currently I have an Enemy superclass and an Enemy_One class that extends that superclass.When an enemy has moved off screen I want to remove it from the frame. Here's the errors I'm getting:
Code:
TypeError: Error #1009: Cannot access a property or method of a null object reference.
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at Enemy/loop()
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[code].....
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Jul 7, 2011
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Apr 10, 2011
Taking my first steps coding in AS3. So I have my main class which extends sprite and I put new mc's on top of that. Using addEventListener on any child MC's with MouseEvent.CLICK works fine, but I can't add it to the main sprite. How can I register all clicks on the screen?
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I've dynamically created event listeners in the usual sort of way:
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[Code].....
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Jun 4, 2010
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Dec 27, 2011
I am trying to make an animation with three seperate buttons that when clicked on make one set of text disappear and new text appear in its place. My code so far looks like this:
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[Code].....
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Jul 13, 2010
I want to run a function when a certain movieclip enter a specific frame. The problem is it run the function repeatedly. I only want it to run once each time the movieclip change from one frame to another is there an event Listener that does it ? (can't put the code on each frame of the movieclip to sloppy and long)
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Feb 4, 2009
this is the error I am having:
TypeError: Error #2007: Parameter listener must be non-null.at flash.events::EventDispatcher/removeEventListener()
at project1_fla::MainTimeline/btnName()
here is my code:
ActionScript Code:
import caurina.transitions.Tweener;
import caurina.transitions.properties.ColorShortcuts;[code]..........
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Sep 29, 2010
i have this function to enable the enter key
Code:
stage.addEventListener(KeyboardEvent.KEY_DOWN, KeyDownFunc);
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[Code].....
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Oct 24, 2011
I have several images loaded onto several sprites from a loader such as
var pict:Loader = new Loader();
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Jun 27, 2009
am loading an image onto stage dynamically. When I click on the loaded image, i am drawing a circle/rectangle[which is of Sprite type] at exact pixel-position on the image and making these circles/rectangles(Sprite_objects) visible there itself. In this way, I am adding as many number of Sprites_objects, till I continue clicking on the same image present on the stage.
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If you copy the code into ur actionsPanel directly,then make sure "image1.jpg" file * is present beside the .fla file.Since it gets loaded iff it is present in same directory.
*/ var myContainer:MovieClip = new MovieClip(); var temp_x:int,temp_y:int; //Loading an image dynamically and adding listeners... var urlReq:URLRequest=new URLRequest("image1.jpg"); var loader:Loader = new Loader(); loader.load(urlReq);[code]....
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Mar 13, 2009
It's never been an issue since I always anticipate it but just wondering...
if I put a MouseEvent listener on a movieclip/sprite...
Code:
whatever.addEventListener(MouseEvent.CLICK, clickAction, false, 0, true);
function clickAction(e:MouseEvent):void {
trace(e.target);
}
that traces a movieclip inside the intended target...
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Nov 24, 2011
I have this in my constructor:
[Code]..
The problem is I get Error: Error #2094: Event dispatch recursion overflow. Why does removechild keep getting called if this.parent does not exist? Why doesn't removing event listeners work?
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Nov 17, 2011
if I have an event listerner (mouse, keyboard, enterframe,....event) that is being triggered, and when it finishes its event, something that is able to detect the finished event listener and fire out another sets of event.
It works more like MOTION_FINISH in TweenEvent, but it is only available for TweenEvent only, what if I want to detect a mousclick, keyboard, enterframe or even touch event?
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Feb 23, 2011
My stage has about 25 buttons on it. Each button when pressed to tweens the background to some random x/y coordinates and then loads an external swf file.This is all working, but the timing is off. How can I wait for the initial background tween to end before I make the loader call to the .swf file.Currently each button's behavior is called on the MouseEvent.CLICK event which calls a function that knows its unique filename.swf. I know you can add the MOTION_FINISH even to the tween event but then I would have to call a new function and lose track of the button that initially called it.
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Feb 27, 2007
I'm moving on to my next massive programming project and I'm trying to decide whether I should code it in as 2.0 or 3.0. I came across the new click event model in 3.0. Right now it's looking like a pain in the butt to me. So now I have to make a function and add it as an event listener? what the hell? What's the benefit? I understand stuff like this makes AS a more complete language but it's kinda annoying.
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Jan 9, 2010
I am trying to get an image object from one sprite container and adding it to another sprite container. But when I use GetChildAt for this, it will remove the object from the parent sprite and place it inside the other.
Code:
sprContainer1.addChildAt(sprContainer2.getChildAt( 1),0);
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Aug 20, 2009
This is a very basic question but I can't seem to find an answer. I have a mouse over event and have created the buttons with the mouse overs which is working great. I created the actionscript to go to a specific web page when a user clicks the button. Now, I need to add a label to the mouse over so when someone mouse's over any area of the button, it will show them a particular name for the button.
I am sure that this can be done using actionscript in a mouse event roll over command but I can't figure out what I need to show the text. Here is where I am:
[Code]..
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May 13, 2010
how can i access event.target outside event listener method.say for example
my_mc.addEventListener(MouseEvent.CLICK, onC);
function onC(e:MouseEvent):void
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var m:MovieClip = e.target as MovieClip;
}
trace(m.totalframes);/// not working
now what if i want to get totalframe property of m instance, in short for every movieClip clicked.
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Jul 8, 2011
I am doing this inside a module containing viewstacks and their childs.Calling onInit() on creationComplete of module.When I am inside one of the childs of a viewstack of this module and press Enter, it doesnt not invoke the listener function at all (bp inside this does not get hit).
private function onInit():void{
this.addEventListener(KeyboardEvent.KEY_DOWN, keyPressed);
}[code]..........
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Nov 18, 2011
This might be more of a subjective question, but is it generally best practice to have one dedicated method per event-types that you add an event-listener?
Such as:
myButton.addEventListener(MouseEvent.MOUSE_OVER, onMouseOver);
myButton.addEventListener(MouseEvent.MOUSE_OUT, onMouseOut);
//Somewhere else in the code...
[Code].....
And if you had a MouseEvent.MOUSE_UP, MouseEvent.MOUSE_DOWN and other relevant MouseEvents event-listeners to watch for, you could even set a switch statement to handle all the various MouseEvent types.
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Jul 30, 2009
I have these buttons in a movie clip and I would like to have only one event listener for the parent, using event.target to point to the children. I have also tried event.currentTarget, and it didn't work.here is the code that works:
test01.abtn.addEventListener(MouseEvent.ROLL_OVER, mouseHandler);
test01.bbtn.addEventListener(MouseEvent.ROLL_OVER, mouseHandler);
test01.cbtn.addEventListener(MouseEvent.ROLL_OVER, mouseHandler);[code]....
It is only targeting the movie clip, not the buttons inside the movie clip.
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