Actionscript 3 :: Flash Run A Function Only If Instance Within Function Is Defined
Mar 3, 2011
I have a situation where, upon loading my swf, I add an event listener to the stage to listen for keyboard commands. One of them is to listen for the spacebar, and if it is pressed, it should play a movie. The problem is, that movie is not loaded until later on, depending other user interactions, therefore, until it is loaded, the reference to it would be undefined.
But if I wait and add the listener for key commands only when the movie is loaded, then I can't utilize the listener for other keyboard commands, like RIGHT or LEFT, which are the buttons which get you to the movie in the first place. Is there a way to add a conditional or something to prevent that code from being executed if the video is not defined yet? Here's my code:
[code]...
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Feb 20, 2012
I'm trying to define this function so I can pass the CardButtons sprite to the Add Cards function. It "works" but there's one problem: the CardButtons sprite used in the function is determined by the value of i at the time of the function call (or in other words, the value of i when I click the sprite).
I want the sprite passed to be literally the value of CardButtons[i] at the point when the function was defined.
CardButtons[i].addEventListener(MouseEvent.CLICK, CardFunctions[i]= function(){ AddCards(CardButtons[i],PlayerHand[player-1][PlayerHand[player-1].len gth-1]);});
Is there a way I can do this, or is there a better way to do what I'm trying to do?
I guess for further example:
I want CardFunction[0] to store the AddCards function with the value of CardButtons[0] passed, it should NOT be dependent on the value of i.
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Jul 14, 2004
I create a new MovieClip, call it Somehow, and link it to the name "MyClip", for example.[code]...
They must be MovieClips, because the functions not only response with hello, like in the example.
So I want to create the Clip copies and call the functions in one step. This example is also not working when i put it inside of a onLoad, or onEnterFrame and so on.
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Jul 6, 2011
Curious question:Take this function:
function something():Array
{
var ar:Array = [];
[code]....
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Aug 12, 2010
In Flash Actionscript 3, if a function is defined in Frame 1 of a flash animation and the animation loops, does it store another version of the function in memory upon each loop.
[Code]...
If so, is it a best practice to check to see if it's the first time the frame has been run, by setting a variable and checking it's existence, or is it a non-issue because the compiler checks to make sure that a function has not already been defined?
[Code]...
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Nov 1, 2010
I've got a Vector of ViewToActionMap objects, which have following constructor:
public function ViewToActionMap(_forModule:eModule,
_forAction:eViewAction,
_toFunction:Function,
[code].....
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Jun 15, 2010
I am trying to add an init() function to a MovieClip, but when I run the function from scene1 the variables that were set in the MovieClip are not defined yet... The MovieClip was dragged to the stage from the library.scene1:
mc.init(null);
MovieClip:
var _default = 5;
[code].....
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Aug 10, 2009
I have been playing around with combining flash and PHP/Mysql for some time now, mainly sending one flash variable to a PHP file and then retrieving a result and turning it back into a different flash variable. My problem is i've got to the stage where I need to access these variables from other functions. Now I think I need to find some way of defining them outside of the function, maybe using global vars? Well i'm not gonna pretend I know anything about it. The two functions from which I access my PHP variables is as follows:
ActionScript Code:
function btnDown(event:MouseEvent):void {
var variables:URLVariables = new URLVariables();
var varSend:URLRequest = new URLRequest("http://localhost/test.php");
[Code]....
So I need a way to access the phpVar1 variable in a totally seperate function
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Jan 1, 2006
i've got this mc component i've created and reuse on some sites i've made. It's a real simple shoutbox that grabs info from a database using a php script.What i'd like to do is have this component refresh every 200 frames, which means, grab most current msgs and post them in the database.so for example, i have a movieclip called MC1. there's a function in MC1 that goes like: grabdata = function() {}; this basically calls the php scripts, loads the info, and so on.i wanna call this function from the root or even a parent MC.I have considered using prototypes or a class, but i dont think it's really necessary for something that seems basic enough.
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May 27, 2009
I am trying to load external swf's into my main swf through nested movieclips.Its like this: STAGE > contents_mc > loader_mc Also most of the code is from tutorial's out on the net.Content_mc I have the following MC's in content_mc (on 2 separate layers, if you want to know):
- Preloader_text (PText)
- loader_mc (LoaderExt)
[code]...
Problem: I am having a problem in calling the function ClipLoader and loading a clip through the loader_mc MovieClip (the text in Purple). The reason I am using this is eventually I will put in code in contents_mc to load various external swf per conditions i give.
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Sep 4, 2010
I'm trying to have JavaScript call a function from my ActionScript.
ActionScript:
import flash.external.ExternalInterface;
ExternalInterface.addCallback( "playSong", playSong );
function playSong():void {
var _sound:Sound = new Sound();
var _request = new URLRequest("music.mp3");
_sound.load(_request);
_sound.play();
}
JavaScript:
swfobject.embedSWF('[URL]', 'musicplayercontrol1', '1', '1', '9', null, null, {
allowScriptAccess: 'always', wmode: 'transparent' }, { }, function( e ) {
document.getElementById('musicplayercontrol1').playSong();
});
I keep getting a function not defined from firebug. I tried having the song play as soon as the swf load, and that works for sure.
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Jan 18, 2006
Code:
class className () {
//constructor
function className(targetmc,linkId) {
[code]....
My question is how can I set up an interval when I click on a button that is created from within the class.
I need my function updater to keep repeating untill I clear the interval.The only way I can figure out is to give the full path like this._parent._parent.instanceName.updater inside the setInterval, but although this works I think is just dumb to hardcode the instace name of the class. I could of course try to pass the instance name as a parameter, but I would really love to find out the smart way to do this (by the book).
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Jun 5, 2009
The following bit of code outputs that 'myRequest' and 'i' are not defined.
Code:
//Load external asset
function loadfail():void
{
[Code].....
after a bit of reading I find that it is because 'myRequest' and 'i' are defined within functions, and so those variables are not available outside those functions. How can I get around this? Make a class?
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Jul 15, 2009
i am quite newbie towards to actionscript 2.0 cos i am now learning on actionscript 2.0
here is the file attachment for you to check.Greetings.zipOutput cannot be worked.I am hoping to see the exact output:Greeting = Hello!Salutation = undefinedSubject: Brick Oven
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Sep 28, 2010
I have a main time line and a button defined. Can I define functions in actionscript anywhere and call them from anywhere? For example, if I call a function in main timeline and it's defined in the button, does that work?
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Jan 26, 2009
I have a general / somewhat newbie question. Is it better practice to call a function from another class like so:
[Code]...
Does one way free up more memory or enhance performance?
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May 12, 2011
I have a class file defined in my package as MyGlobals.as.[code] (I have tried adding/removing "static" and "dynamic" to no effect.)I am trying to call a touch event from the main timeline in this way:myObject.addEventListener(TouchEvent.TOUCH_BEGIN, MyGlobals.myFunctionName);(I have tried removing the class name to no effect.)When I compile I get the error 1046: Type was not found or was not a compile-time constant: TouchEvent. This error occurs on function definitions in the class file.What syntax/concept am I getting wrong? The functions were working fine when I was using constants in the timeline, but I need to be able to reuse these functions over and over again, so I wanted them to be able to take touch event variables so that I didn't have to write a different function for every touch event.I tried googling "error 1046" but I can't find anything useful.
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Apr 5, 2012
I'm currently working with soundmanager2 in an IE/flash context (not html5). The issue is that audio playback of mp3 content does not occur for the following case where the 'onload' callback function is defined as null OR as a function that does almost nothing.
[Code]...
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Mar 26, 2010
I have a tab button in a movieclip with 3 different states keyframed - popup, hover and up. I use the textfield on each state to show tab title - the problem is I cannot use the same position for the textfield on each keyframe, so I keyframed the textfield's position. And in both keyframes for the textfield it has an instance name tabText. And when I assign text to it - it changes on one keyframe only. How should I resolve this situation without adding the textfield programmatically?
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May 17, 2009
I have 4 instances of the same button on a single layer in a timeline of the mc 'coverflow_mc' named 'ThatsMe_btn_a' to 'ThatsMe_btn_d' ie same button, same position.. it just changes instance name on 4 keyframes. Why does it call the function fine for button a but not for b,c, or d? There is a stop on each of these frames and I can see from the swf that it is stopping at the correct frames.
function thatsMe() {
right = new Sound();
right.attachSound("right");
[Code]....
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Mar 2, 2010
So this is my code:
ActionScript Code:
onClipEvent(enterFrame) {
if (!this.already) {
setTimeout(win, 2000);
[Code]....
The problem is that I can't do trace(this); How to get it work? I have tried to do this.setTimeout etc..
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Jun 4, 2003
I've got this function, in which I declare a variable. according to that variable I want to adress an instancename...
[Code]...
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Jan 11, 2005
I'm using two functions, one for an onRollOver event and the other onRollOut.
The problem is that when the second mc calls either of the functions, the inital function running ends its cycle, leaving that animation unfinished.
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Nov 14, 2011
I'm using this code to call a actionscript 3 function through javascript
[URL}
and I want to call the acrionscript 3 function from a javascript function, but not on a button action.
actionscript code:
//call to javascript
ExternalInterface.call("sendToJavaScript");
//call from javascript
[Code]....
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Sep 29, 2010
Well I want to set up a function that will calculate the x position of where my MovieClip's instance name will go. Here is the code i currently have.
function xBtnPosition(btnName: String, btnXpercentage: Number):String
{
var xFinalPosition: String = -(((btnName.width * btnXpercentage) / btnName.scaleY));
[code].....
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Nov 17, 2010
Got 9 MCs which I want a rollover effect for. I made 1, copied it and it's instance name 9 times. And made this script:
Code:
function menu_btn_over() {
myTween = new mx.transitions.Tween(_root.main.menu.btn.btn_parent, "_x", mx.transitions.easing.Strong.easeOut, _root.main.menu.btn.btn_parent._x, 0, inspeed);
[code]...
But it only works for one of the buttons. The one I made the copies from.I figured you could do this since it's the same MC? I could be wrong though. If that is the case, is there some way I can make the same action for every button without having to make a bunch of calls for each one? for example:
"_root.main.menu.btn1 <and> btn2 <and> btn3 <and> etc.onRollOut = function() {"
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Aug 7, 2009
I have created a function that creates a pop-up text box: I have named instanceName as a String but sadly it doesn't work. The only way I can get it to work is to name the instance within the function. Is there any way of creating a variable for the instance name? [code]...
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Aug 1, 2004
I have the following code from a tutorial on Kirupa:
Code:
_root.currMovie = "home";
container.loadMovie(_root.currMovie+".swf");
_root.home.gotoAndStop(2)
[Code]....
As you can see are the button names: home, about, service and contact. This are also the names of the external swf's. But now I have chanced my button names in: btn_home, btn_about, etc. Now is it a little stange to name my external swf's btn_home etc, so how can I substract the prefix btn_ from the buttons so that the externa swf's can keep their normal names? I know it has something to do with substr but I don't know how and where to implement it.
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Apr 24, 2006
the idea is that the site keeps tracks of whatever page is current and passes this variable to the alpha function which will target that movie instance to fade when moving to another page - then that page's name will be assigned to current.this is the code that i have now..
#include "alpha.as"
evolution.onRelease = function() {
this[current].gotoAndPlay(2);
[code].....
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Apr 24, 2006
k the idea is that this movie keeps tracks of whatever page it's on using the variable current. when the button evolution is clicked it should jump to frame 2 of the movie whose instance name is contained in the variable current and also pass this variable to a function called alpha which fade that movie's instance when moving to another page - then that page's name will be assigned to current.
this is the code that i have now..
#include "alpha.as"
evolution.onRelease = function() {
this[current].gotoAndPlay(2);
this[current].alpha(5, 0);
};
all these buttons and movie instances are contained in the same movie clip and the variable current is declared in it too.
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