Actionscript 3 :: Error When Using Getter/setter Methods On Sprite?
Nov 20, 2009
I'm trying to make a class that extends the Sprite, have some private properties attached to it and be able to read and write those properties using getters and setters. Simple... but the compiler throw this error "Access of possibly undefined property speed through a reference with static type flash.display:Sprite."It works if I set my class to extend the MovieClip object.Could someone explain me the logic behind this? why I can't use getter and setters with a Sprite?Here is a sample code:
package {
import flash.display.Sprite;
public class Vehicle extends Sprite{
[code].....
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Aug 2, 2011
I'm trying to make a class that extends the Sprite, have some private properties attached to it and be able to read and write those properties using getters and setters. Simple... but the compiler throw this error "Access of possibly undefined property speed through a reference with static type flash.display:Sprite."It works if I set my class to extend the MovieClip object. someone explain me the logic behind this? why I can't use getter and setters with a Sprite?
[Code]...
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Jul 27, 2009
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"Getting" the hang of Getter/Setter methods, but could use a review of my syntax. Does the follwing demonstrate best practices, meaning the least awarkward application of the technique?
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Nov 9, 2009
I'm having trouble updating a property value of a custom class (SubLoader) using a getter and setter. Inside the if() statement of the main fla you can see my attempt to set the percent value. Running a trace() method before the if() statement always outputs '0' for some reason. Tracing after the if() statment outputs an actual value. I can't figure out why the percent property always traces as '0' before the if statement even though I am updating it with each progress event.
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Dec 29, 2009
Anyone know a workaround to make static getter/setters?
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Mar 22, 2012
I seem to have run into a situation where when I push a value to an array held within a singleton via a getter/setter , Flash seem so access the getter over the setter method. Within my command/controller (I am using RobotLegs)
override public function execute():void {
// various line of code here
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The getter and setter within my model e.g. robot legs singleton
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When I set a break point on both the getter and setter, only the getter method is being called, why? I would think that a push value on the array would trigger the setter, not the getter.
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Oct 11, 2011
I'm trying to create a property that can be set by extending classed and read publicly.I couldn't think of a good naming convention for a protected property with a public getter, so I tried to do this:
public function get name():String{ return _name; }
protected function set name(string:String):void
{[code]......
However I get the error (when trying to set name in an extending class): 1178: Attempted access of inaccessible property name through a
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Feb 19, 2012
I recently completed a tic-tac-toe game in AS3, using some simple function-based code I had written in C many years ago.Now I'm on a quest to do it the "right way" using OOP techniques and best practices.Everything is now divided into neat little packages, it looks pretty, and the last part of my journey is to get all the little buggers to communicate with each other.I want to move the code which holds the game state from my main to it's own class in com.okaygraphics.model.GameState.The problem is nearly every other package gets and sets these game state properties.I'm trying to figure out the simplest way to encapsulate this stuff, while still allowing my other classes to access it.
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3) Should I assign everything to the class itself using the static keyword? If so, how would I implement and use those static methods?
4) Is this a mistake? Did I totally just program myself into a corner?
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Jun 28, 2009
i dont get the advantages of using getter and setter instead of setting the var public.
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May 26, 2010
I have two functions one that sets and one that gets a number. The set one works, but the get one doesn't. I have it trace the set it returns the correct number, but when I set the getY function, it doesn't give me anything at all. When i took the number out of the trace it just gave me back only text. What am I doing wrong here?
ActionScript Code:
public function setY(y):void {
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[code].....
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Mar 17, 2010
I have a .as file with class Main which contains:
Code:
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[Code]....
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I have tried
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Oct 23, 2009
I have written a class, which is basically a textfield for forms. It will eventually have several validation modes built into it too, which will be set by setting a property of the object.anyway, my problem. Basically my setters are empty if the movie is used as a loaded swf within another movie.I have an Event listener within the class listening for the Event.ACTIVATE event (still not sure exactly what this does...) though i do know that i need this in place for the setters/getters to work.If i create objects from my class, set some properties everything is spot on, though the moment i load this working movie into another movie the Event.ACTIVATE does not fire.[code]Now, if i run this movie its perfect - everything works as it should, right down to the validation.however, this movie is to be used within another movie. When i load this movie into a parent movie my fields aren't added to the movie.
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Sep 9, 2011
Is it possible to have a property with a public getter and protected setter? I have the following code:
public class Mob extends Sprite {
// snip
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[Code]...
I did have this.health -= dmg; but I split it out to get more details on the compiler errors. I don't understand how the property would be considered read-only within the same class. I also don't understand how it's inaccessible. If I make the backing field, getter, and setter all protected, it compiles but it's not the result I want; I need health to be readable externally.
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Jul 13, 2011
I have a problem whereby in AS3 using Flash Builder 4 using a public getter with an internal setter gives me the error "property is read only", like so:
[Code]...
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Mar 11, 2010
If I've got a getter method, say a(), that returns the private variable _a. Obviously from outside the class I call instanceOfClass.a. But from inside the class, should I use the getter or directly _a? Suppose I'm writing a method that uses _a: should I use _a or a? var b = a; or var b = _a? Maybe for performance reasons it's better to directly access _a? Or since there's a getter a(), it's a good practice using always and only the getter?
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Nov 28, 2009
The generally used workaround for this, is to use a regular function instead of a getter/setter. This results in having to have ( ) after the function variable obviously. The question is, can a Function variable be assigned to a getter/setter function and retain its attribute of not needing brackets.
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#########################################################
public class Foo(){
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Jun 14, 2009
I'm using flash and the error message "Constructor functions must be instance methods." appears for the following code:
invsibleBtn.addEventListener(MouseEvent.CLICK,onClick);
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Jul 18, 2010
I am follwoing a tutorial on linda.com about creating a website in Flash everything was going well until i started trying to copy the action script in the online examples now I keep getting this error message and can't figure out how to get rid of it:
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Sep 3, 2009
Load external SWF file, an error: TypeError: Error #1009: Null object reference can not access the properties or methods.
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Jul 6, 2011
I found this actionscript online to rotate a sprite around its center point but I get two errors when I use it. 1084: Syntax error: expecting identifier before leftparen. 1084: Syntax error: expecting rightparen before leftbrace. Also, in place of angleDegrees do I put in the angle I want the sprite to rotate by?
var point:Point=new Point(spr_box.x+spr_box.width/2, spr_box.y+spr_box.height/2);
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Jun 4, 2010
here happened an error
error:
interface 'Sprite' could not be loaded.
var symb1:Sprite = new Sprite();
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Feb 5, 2011
I am being told that this error takes place on Line 3, which is blank. I can not figure out what the problem could possibly be.
package { import flash.display.*; public class toppings extends MovieClip { var inventory:Sweettreat; function toppings() { inventory = new Sweettreat(this); inventory.makeSweettreatItems([MCsprinkles,MCchocolate,MCcaramel,MCnu ts,MCcherry]); } }}
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Apr 25, 2009
've tried calling constructor class from my main.fla, and it just doesn't work. The error when I try to instantiate the constructor is that it needs an argument... and since the class extends a Sprite.
PHP Code:
public functionportGal():void {
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Oct 7, 2009
I want to create a basic drawing utility as a part of my project. Since the drawing needs to be saved I wanted to convert it to a bitmap. I searched for help on google and found this example.
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Quote:
The class or interface 'flash.display.Sprite' could not be loaded. // source: var canvas:Sprite = new Image();
The class or interface 'flash.utils.ByteArray' could not be loaded. // source: var bytes:ByteArray;
The class or interface 'flash.display.Shape' could not be loaded. // source: var child:Shape = new Shape();
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Feb 22, 2009
I try to load classes ex:flash display.Sprite(); and I get error messages. Not just with this code with any class I try to implement. why this is happening. Am I missing the folder that has all of the classes in them in Flash CS3.
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May 2, 2010
I'm attempting to read a property on a series of Sprites. This property may or may not be present on these objects, and may not even be declared, worse than being null.
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Jan 18, 2010
I've been working on a simple mosaic generator for a project and have been crashing Flash consistently by trying to add too many bitmaps to a Sprite. I can crash Flash every time with the following:
for(var i:int = 0; i < 10000; i++){
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addChild(new Bitmap(d));
}
I get a 2015 error - invalid BitmapData.9000 works without issue... 10000 crashes. Problem is I need 10000.Is this a known limitation? I could try using multiple sprites and adding say 5000 to each, but that wouldn't be easy with this project. But if I have to I have to...
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Jul 15, 2011
"Error #1069: Property data not found on flash.display.Sprite and there is no default value.at flashhaupt01_fla::GalleryData01_1/imagepress()" error in as3.I am trying to get the url from xml into as3, but not getting how to do itI need to demo this within 1 hourhere is my code
var xmlReq:URLRequest = new URLRequest("XML/ImagesData01.xml"); // rename to your file!!!
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[code].....
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