Actionscript 3 :: Get Instance Method Reference From Class Object?
May 23, 2011class Foo {
public function bar():void { ... }
}[code].....
Similar Posts:
Actionscript :: Targeting Sprites From A Method In The Document Class - Null Object Reference?
Feb 9, 2011I am trying to code a flash app entirely in the document class. I am using GestureWorks with a touch screen. When a user essentially presses a button it calls a method that should hide a specific graphic but not the graphic they touched.
Essentially I need a way to refer to a graphic on the screen using a method besides 'e.target'.
I am receiving this error: Error #1009: Cannot access a property or method of a null object reference.
[Code]...
It can access photo1Sprite as 'e.target' when the button click happens on the photo1Sprite. The problem happens when to click one button (not photo1Sprite) and have it effect photo1Sprite. So I can make photo1Sprite react if my method is attached to it directly using 'e.target' but not if I am trying to call it from a method that was called from another element on the screen.
ActionScript 3.0 :: Sending A Class Instance Reference To A Different Class Instance?
Apr 14, 2011I'm creating a little game - The player controls a character that follows the mouse. Pigs run away from the player, and the player has to get them all into a pen. To make the game a little more difficult I'm trying to add an enemy - wolves, that attempt to perform a 'hunt' method every x seconds. This method sends a reference of the wolf instance to Main (my document class) and Main then loops through the pigs on stage to see if there's any nearby. Now as far as I know this works - my problem is I'm unsure how to send the pig instance reference back to the wolf that called the hunt method, so it can then 'target' the pig, and then attempt to pounce on it.
This is my Wolf class:
Code:
package
{
import flash.display.MovieClip;
import flash.events.Event;
[Code].....
Actionscript 3 :: Reference A Class Instance From Another Class Instance?
Dec 10, 2010Quick question. I have been Googling this all morning, but it's either not there, or else written in a way that doesn't register. I am inclined to believe the latter, as this seems like it should be something completely trivial to me. I made a small Flash file using AS 3.0, and this is the first time I've really been able to stick to the OOP way of doing things and not hack together a mix of stuff from the timeline to get around not having everything work in the classes.
So I'd like to keep it that way, but one thing is eluding me: I can't call a method of an instance of another class (than the one I'm calling from) without resorting to "DocumentClass(root).instanceName.method." Intuition tells me there has to be a better way of doing this (like, without having to reference the document class every time I call another class instance's function; and CERTAINLY without having to use the word "root" - that just seems so Flash 5 to me. Does anybody have a better way of doing this that they can share?
[Code]....
Flex :: Difference Between Class Reference And Class Instance?
Jun 28, 2010Given that both of these calls to getQualifiedClassName return the same thing (mx:Label), how would one go about programatically differentiating between an instance of a class and a reference to the class...
var lab1:Label=new Label();
var lab2:Class=Label;
var qcn1:String=getQualifiedClassName(lab1);
var qcn2:String=getQualifiedClassName(lab2);
In other words, how could I know that lab1 is of type Label, while lab2 is type "Class". typeof() simply returns "object" for both... getQualifiedClassName returns "mx.controls::Label" for both...
ActionScript 2.0 :: Delete Instance Of Class From Class' Method?
Dec 28, 2005I have a class called Unit. When I use this class in a .fla file, I create it by saying:
var unit00:Unit = new Unit(...);
So then it creates a gfx representation of the screen for me. I would like to have a method like this:
PHP Code:
[code]....
So how do I get this to work? I know that delete this will not work when defined inside the class. How do I target the .fla's instance name when I don't know what it will be called?
ActionScript 2.0 :: Get Var Reference To Instance Of Class From Within The Class?
Mar 15, 2006I want to retrieve the var reference of an instance of a class from within the class. For example:
ActionScript Code:
var ref:MyClass = new MyClass ();
//then via some method, I would like to get the var ref inside the class
ref.getRef(); //returns "ref" instead of [object Object]
[Code]....
You may ask why, well I want to do some spring cleaning inside this manager class I am making. Of course the above is a simplistic version of what I am trying to do.
ActionScript 2.0 :: Self Reference To A Class Instance Within A Class?
Jan 7, 2005how can I self refer to an instance of a class within the class definition file?Here is an example
PHP Code:
public function fireBullet(target:MovieClip) {
Bullet_mc = target.attachMovie("Bullet", "Bullet1", 1);
}
}
Now everytime I want to call the function I have to put this as my target, (fireBullet(this))I cannot just put it in the code as it gives me an error.
Actionscript 3 :: Object Is A Null Reference Only When Using A Method?
Feb 7, 2011I have a object called "target" with a property called "movement":
private function start() {
var movement:IMovement = new ZigZagMovement(target);
target.movement = movement;
[code]....
ActionScript 3.0 :: Return An Object Reference From A Method?
Nov 5, 2010I am new to actionscript and doing some research on it and stumbled upon this situation.[code]...
However, I expect that currentFig would contain a reference to a Figure object created in AddFig method, but it's not. What am I doing wrong? Why does an object exist only within a method?
ActionScript 3.0 :: Changing Reference From Instance To Class?
Oct 14, 2010i'm playing around with Senocular's brilliant transform tool. Here's the code that I'm having issues with - it targets the instance name, which is great and works perfectly.
ActionScript Code:
_transformTool.targets = [pasteBoard];
_transformTool.activeTarget = pasteBoard;
Here's the issue. When I have an MC placed on the stage with the instance name of 'pasteBoard' the above code (which tells the transform tool what to transform), works just great. However, when I place the MC on the stage with AS and name it, the transform tool can't find it . Here is the code I'm using to place the MC:
ActionScript Code:
var pasteBoard:_pasteBoard = new _pasteBoard();
addChild(pasteBoard);
pasteBoard.name = 'pasteBoard';
pasteBoard.x=128.00;
pasteBoard.y=300.00;
Now, surely this should work as I'm even giving it an instance name? But it does not, it does not work even with no instance name, or when the class object name is different than the instance name. Weird huh? Surely this should work just fine as I'm doing exactly the same thing as placing it on the main timeline, just doing it with code. But the transform tool, referenced by the code at the top of this post, can't find pasteBoard.
Do I need to alter the code at the top to find pasteBoard by class instance? how would I do that?
ActionScript 3.0 :: Reference Object/element On An Instance?
Jul 15, 2011Is it possible to control an object/element on a instance? If so, how is it done through actionscript? There is an instance "instance140" off of the root, that has an element named img4 that i need to reference... does anyone know how I would go about that? using root.instance.object form returns undefined.
View 1 RepliesActionScript 2.0 :: Reference Object/element On An Instance?
Jul 14, 2011Is it possible to control an object/element on a instance? If so, how is it done through actionscript?There is an instance "instance140" off of the root, that has an element named img4 that i need to reference... does anyone know how I would go about that?
View 0 RepliesCS4 :: Cannot Access A Property Or Method Of A Null Object Reference
Feb 3, 2010"Cannot access a property or method of a null object reference."I'm trying to get a button to go to a frame in my movie and stop. The code I am using is
Code:
btn1_btn.addEventListener(MouseEvent.MOUSE_DOWN, mouseDownHandler5);
function mouseDownHandler5(event:MouseEvent):void {
gotoAndStop(19);
}
Cannot Access A Property Or Method Of A Null Object Reference Mean?
Apr 20, 2010I have a slight problem. 3 scenes one named home , gallery and profile . 3 buttons each named after the scene. Whenever i test it and click a button to go to another scene i get this TypeError: Error #1009: Cannot access a property or method of a null object reference.
at Untitled_fla::MainTimeline/frame2()
at flash.display::MovieClip/gotoAndPlay()
at Untitled_fla::MainTimeline/buttonClick1()
[code].....
Cannot Access Property Or Method Of Null Object Reference
May 13, 2010I have been trying to design a maze game for college project but I seem to be stuck and hoping someone can help me out. Get error:1009: Cannot access a property or method of a null object reference.at code::Game1$iinit()New to flash so not sure what this means. [code]
View 1 RepliesCannot Access A Property Or Method Of A Null Object Reference
Nov 1, 2009well i have a problem with my analog clock. i have it in my homepage and now it's working fine, but when i test my movie and click in my portfolio, for example, my output windows gives me this error: TypeError: Error #1009: Cannot access a property or method of a null object reference. at index_fla::MainTimeline/clock() i don't understand because even when i change from page to page (or frames) the clock is still working and everything is ok... but the message keeps appearing till i close my test movie window... and i've noticed that when i go online, there are some files missing that weren't till i had the clock on my homepage.[code]
View 12 RepliesCannot Access A Property / Method Of A Null Object Reference
Dec 8, 2010I am just trying to watch television episodes on my laptop. this error has been popping up for the last couple weeks for no apparent reason. At first, it also said the Flash Player didn't work with 64 bit whatever with IE8. The error said a patch was not yet made and to use IE 32 bit. I did this and am still getting the error. I have uninstalled flash player and reinstallaed it to no avail. This error led to further problems on my laptop resulting in a total crash. Fortunately, I was able to back up all my files before they disappeared. I restored the computer to a time before I started watching television programs on XFinity.com (about a couple months ago) and it seemed corrected for a while and then the error started again. I am given the option to continue or dismiss. either button allows me to continue watching the program, but then repeatedly appears even when I quit XFinity and watch the shows directly from the network websites.
View 9 RepliesIDE :: Cannot Access A Property Or Method Of A Null Object Reference?
Jan 10, 2010I'm trying to create a simple user name and passwor screen which will link to a menu and in the menu will have a choice of three games to play.frame 1 is the logon screen. Frame 2 the menu. Frames 3,4 and 5 the games.I managed to create the logon screen, the menu and the first game but the error below appears when clicking on the button to go to the first game in frame 3
Cannot access a property or method of a null object reference.
at logon_Scene1_fla::MainTimeline/init()
at logon_Scene1_fla::MainTimeline/frame3()
[code]....
ActionScript 3.0 :: Call Method For Instance Of Other Class?
Oct 15, 2009From my Main class, in the method onBackgrLoad, I am trying to call a couple of public methods (i.e. xmlData, hintergrund & numOfProducts) located in LoadXML. I keep receiving an error message that "loadXML" is undefined. I dont understand why because I clearly defined it in the main class:
PHP Code:[code].............
ActionScript 3.0 :: Access A Method On Instance From Another Class?
Jan 21, 2010What I want to be able to do:
- click a guy to select him
- click an adjacent tile
- move selected guy to clicked tile
The way I've coded it, each instance of a guy class has a mouse even listener on him which listens for a click. When clicked, I find out the tile underneath him, and the surrounding tiles. So far, so good.
When clicked, the guy calls a method in the tile class, like tile.onClick, which tries to say: get this tile, and send it back to a method in the guy class, like moveGuy. Then moveGuy moves the guy to the tile it was told.
Problem:
From the guy class, I call a method in the tile class. To communicate between classes, the tile class method onClick must be static. But if it's static, the method can't refer to "this", because it's a method in the class only, not on each instance of tile. But I need to know which tile was clicked, and send that reference to the guy so he knows where to go.
How do you access a method from outside its class so that the method can refer to "this" instance? OR, how do I find out which tile was clicked without needing any code on each tile instance? OR... how else can this problem be solved?
Actionscript 3.0 :: Access A Method On An Instance From Another Class?
Jan 21, 2010What I want to be able to do:
- click a guy to select him
- click an adjacent tile
- move selected guy to clicked tile
The way I've coded it, each instance of a guy class has a mouse even listener on him which listens for a click. When clicked, I find out the tile underneath him, and the surrounding tiles. So far, so good.
When clicked, the guy calls a method in the tile class, like tile.onClick, which tries to say: get this tile, and send it back to a method in the guy class, like moveGuy. Then moveGuy moves the guy to the tile it was told.
Problem: From the guy class, I call a method in the tile class. To communicate between classes, the tile class method onClick must be static. But if it's static, the method can't refer to "this", because it's a method in the class only, not on each instance of tile. But I need to know which tile was clicked, and send that reference to the guy so he knows where to go.
How do you access a method from outside its class so that the method can refer to "this" instance? OR, how do I find out which tile was clicked without needing any code on each tile instance? OR... how else can this problem be solved?
Is this problem what getters & setters are for? I don't really understand how to use them yet.
ActionScript 3.0 :: Accessing Object - Error "Cannot Access A Property Or Method Of A Null Object Reference"
May 31, 2009I have problem with accessing object created by function imported from another package.
I have 2 packages DragDrop and UserInterface. In UserInterface I create methods for buttons and later add them in DragDrop . I make it in two different ways:
One(this one works):
[Code]....
Actionscript 3.0 :: Static Reference To Document Class Instance?
May 3, 2010What I'm looking for is a way to reference the document class instance, to be able to access functions and variables that other classes need. I'm currently doing it with this little piece of code I found on some blog or forum.
Code: Select all// This is in the document class
private static var _instance:DocClass; // I have tried setting this to public and accessing it directly as well
public static function get instance():DocClass { return _instance; }
[code]....
This seems to work as it should in Flash CS4, but when I try to run the same code in CS5 I get the following error message:
Code: Select allC:UsersImpenDocumentsMy DropboxFlash Project\_SPELTankGameMenuShop.as, Line 238 1195: Attempted access of inaccessible method globalFunction through a reference with static type DocClass.
ActionScript 3.0 :: Cannot Access Property / Method Of Null Object Reference
Apr 17, 2009I have a mutiple choice quiz which is spread across a number of frames, the same script is used for each frame only using different named variables.The code works fine on the first frame but I get the Runtime error 1009 on the 2nd, 3rd etc frame.My guess is it's to do with the way i've declared the next_btn, but im not sure.[code]
View 17 RepliesActionScript 3.0 :: Cannot Access A Property Or Method Of A Null Object Reference?
Sep 15, 2010AS3 and object oriented script. My issue involves instantiating movieClips and referencing them correctly to avoid:Error #1009: Cannot access a property or method of a null object reference.I've spent hours researching this and know I am referencing an object that is not there but I don't understand how to instantiate the movieClip (I think I need to generate a class for the main movieClip?) I am such a noob and really apologize for the lame question. my file is hereThe file works but I know I'm doing it wrong and really would love to know the right way!Here's the full error:
TypeError: Error #1009: Cannot access a property or method of a null object reference.
at problem_file_fla::avalanch_holder_6/frame200()[problem_file_fla.avalanch_holder_6::frame200:4]
[code].....
ActionScript 3.0 :: Cannot Access Property Or Method Of Null Object Reference?
Mar 18, 2011Im getting a 'TypeError: Error #1009: Cannot access a property or method of a null object reference' when I try to gotoAndPlay(15) in my .fla file. It can start playing frame 15 fine if there is no actionscript on it ie just an image but as soon as I add actionscript code it gives me the error. I have been trying for hours to try and solve it so if anyone coud help it would be much appreciated!I have included the.fla file and stripped most of the graphics out so it's under 300kb limit.
View 2 RepliesActionScript 3.0 :: Can't Access A Property Or Method Of A Null Object Reference
Nov 8, 2011I want to call a function under main function,code is follows package{ import flash.display.Sprite; import flash.events.*; import flash.geom.*;
[Code]...
Flex :: Cannot Access A Property Or Method Of A Null Object Reference
Sep 4, 2010I try to do preloder in Flex for my project written in Flash. I make this with the help of this site link text My Flash project have next source in main class called Game
stage.addEventListener(KeyboardEvent.KEY_DOWN, keyDown);
stage.addEventListener(KeyboardEvent.KEY_UP, keyUp);
private function keyDown(event:KeyboardEvent) {
[Code]....
Flex application work but Flash application does not react to button presses
how I can make preloader and work buttons together
Flash :: Cannot Access A Property Or Method Of A Null Object Reference
Sep 22, 2010Creating a pacman-like game, where a player eats objects. When a MovieClip (box) eats a circle on the stage, the score in the dynamic text field should go up by 10 points.
Error message:
Cannot access a property or method of a null object reference.
at Move/init()
at Move()
[Code]....