Why I am losing scope on an array that i define as a private member in a class? I am able to access it from a couple of different functions but in one place inparticular it keeps coming up "undefined". What causes scope to be lost in a function for an array that is defined as a private class member?
View 4 RepliesHow do I fix this? With this code in my class:
function moveDelay():Void {
myInterval = setInterval(this.movePoints, delay);
}
I lose scope when it calls the function. "this" becomes undefined.
I have a class that creates an array from a config xml file. I set a private variable in that class and use a getter in other classes to access the array. The routine that uses the array does the following:
- Call the getter and assign the returned value to a local (private) variable tmpArray. the getter is a simple return() using a value that is established in the constructor.
- Uses a for loop to itterate over the contents
- Uses array.shift() to pop the item in tmpArray
The next time I run the routine, the contents of the array is empty. I'm using the same getter. I implemented the getter when I tried to manage both arrays in the same class figuring that as long as the original array was private (i also tried static), that the value would not change. I have since worked around the problem by moving the routine that fills up the original value from the constructor to the getter. So, consider the following code:
import flash.events.Event;
btn.addEventListener("click", btnHandler);
var myArray = new Array();
var myTmpArray = new Array()
myArray = ["one", "two", "three"];
myTmpArray = myArray;
function btnHandler(evt:Event) {
[Code] .....
If I create a variable myVar and set it to 1 then set myOtherVar = myVar, the both equal the same value. If I change the value of myOtherVar, myVar is not affected. But using the shift() method changes both the original and the copied array.
I have a mc with simple btns inside. the mc is on every frame except one,in which I swapped a similar mc (different colors).I have tried leaving the instance name for the mc the same and also changing the instance name to something else but anytime I navigate to that frame, the buttons quit working.I have tried changing both the buttons and mc instance names to no avail.This is on my main timeline:
CrclMnTp_mc.CAbout_btn.addEventListener(MouseEvent.CLICK,
AboutNav, false,0,true);
CrclMnTp_mc.CSamples_btn.addEventListener(MouseEvent.CLICK,[code].....
I add this actionscript code on the first frame. Variables are loaded but. The question is below the code.
[Code]...
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
Okay so you've got your private vars in your AS2 Class, you think they're all safe right? Wrong.
Doing a trace(MyClass.myvar); will spit out an error that the var is private and you can't touch it.
But a trace(MyClass["myvar"]); will work perfectly fine. You can use it normal, without any setters getters outside the class.
Is there a way to protect against this? I think this is a huge security flaw. I know it's simple OOP, but a private var in an object should have rules.
I am using flex builder 3.2, Action Script 3 and develop for Flash Player 10 and am quite new to it. when I call a method of a self defined class, I get the 1061 error (not defined). But the class and the method exist and are public, so what the hell am I doing wrong? Flash Builder is even offering me this method in the auto-completion, so at least the builder knows it... I have already tried cleaning the project (as this is the common source of strange errors when working with java/eclipse),
edit: solved... The problem was that a package had the same name as the variable I used for the class. Very strange error message, thumbs down for this .
I have a textInput control that sends .txt value to an array collection. The array collection is a collection of US zip codes so I use a regular expression to ensure I only get digits from the textInput.
private function addSingle(stringLoader:ArrayCollection):ArrayCollection {
arrayString += (txtSingle.text) + '';
var re:RegExp = /D/;
[code]....
here is a snippet of my code in an as file
ActionScript Code:
class PoolBall extends MovieClip {
private var poolBall:MovieClip;
[code].....
In my project I've defined a Point class to build Point objects. I also built a Polygon class with a (private) array property, Points. The polygon class contains a method getPoints() which return the current Points array. My objective is to built one or more Polygon objects and assign several Point objects to the Polygon's Points array. Let's say I've created two Polygon objects, plgPolygon01 and plgPolygon02. To both objects I insert three new Point objects into the Points array.
As I call the plgPolygon01.getPoints() method, i expect to get an array with three values. But when I do this, I get an array with six values. So I conclude: while I was inserting Point objects into the Points array of a Polygon object, this Points array seems to be public instead of private. Otherwise, I'd only get the Points I assigned to the first Polygon object and not all the Points assigned to polygons.
I have a class in which I have declared an array. The functions in that class are designed to make changes to the array, but it's not working:
[Code]...
Anything I do to customerCheck treats it as if it were a new array. This is especially obvious when using customerCheck.push in addCharToCheck() -- the trace always shows a blank array before push and an array with one object in it after the push... then next time it does the same. I know I'm making some sort of fundamental error regarding the scope of the array within the class but I just cannot find any good information on how to fix it! Moving to AS3 (been coding it for all of about 3 weeks) is a nightmare so far, and it seems to be the 'easy' stuff that causes me problems
i have created a Vehicle.as file and a Car.as file which are in the same project. The problem i am having is trying to use the properties in my Car.as from my Vehicle.as file.Vehicle.as
Code:
package
{
[code]......
I've heard it's considered best practice to keep all class properties private and to change them using getter and setter methods.
View 5 RepliesI have two classes. The Main class calls a function, which is defined in a Second class.I'm getting the following error:Error 1120: Access of undefined property myFunctionBasically, I am creating buttons in the Main class that will add a corresponding Child to an Object in the Second class (if you click one button, child x1 will be added, if you click another button, child x2 will be added, and so forth).Here's the relevant code for the Main.as file:
package
{
import flash.display.MovieClip;
[code].....
I try to serialize objects with their private attributes, in Flex.
The introspection API does not seem to allow it:
"The describeType() method returns only public members. The method does not return private members of the caller's superclass or any other class where the caller is not an instance."
Is there another way for an instance to know the name of its private members?
I have a class which deals with a lot of visuals, which essentially are movieclips. So I have around 50 privately declared movieclips in the class. Would it be a good idea to put them in a dictionary and retrieve them by their name (as key) , put them in an array or just leave them as they are?
My issue is the visual look of my class right now with that many private members, looks like a mess visually.
I am writing class that extends adobe air PNGEncoder,
I want to use the writeChunk method, but it seems to be private static and i cant seems to use it with my code But it gives the error as below
[Code].....
I have some code from a CS3 app composed of the .FLA file with an .AS file for the class that had definitions for two private classes in it. Yesterday I brought the files into CS4 and noticed that they did not compile. Gives an 1120, access of undefined property and names a constant. I have reduced this problem down to bare bones and it still occurs, so it is a bug in CS4.
[Code]....
there are classes definitions where all their methods are private my question is why are they private, because i've tried a code wherein i changed all the private access modifier to public and nothing changed!
what if you make an instance of that class with all its method private, how are you be able to access that on another class. coz i know private methods are only accessible to the class where they are declared! will the instance of that class be able to access the superclass's private methods!
on private variables, it's still not clear to me as to why make a private variable and then use a getter and setter, when you can simply make it public! are these variables called static?cause on the way i understand it private functions and private variables are static?
I've only been programming in as3 for a couple months, and so far I've written several compositional classes that take MovieClips as inputs to handle behaviors and interactions in a simple game I'm creating. One problem I keep coming upon is that I'd love to access the custom variables I define within one class from another class. In the game I'm creating, Main.as is my document class, from which I invoke a class called 'Level1.as' which invokes all the other classes I've written.Below I've pasted my class 'DieLikeThePhishes'. For example, I would love to know the syntax for accessing the boolean variable 'phish1BeenHit' (line 31) from another class. I've tried the dot syntax you would use to access a MovieClip inside another MovieClip and it doesn't seem to be working for me.[code]
View 1 RepliesI've only been programming in as3 for a couple months, and so far I've written several compositional classes that take MovieClips as inputs to handle behaviors and interactions in a simple game I'm creating. One problem I keep coming upon is that I'd love to access the custom variables I define within one class from another class. In the game I'm creating, Main.as is my document class, from which I invoke a class called 'Level1.as' which invokes all the other classes I've written.Below I've pasted my class 'DieLikeThePhishes'. For example, I would love to know the syntax for accessing the boolean variable 'phish1BeenHit' (line 31) from another class. I've tried the dot syntax you would use to access a MovieClip inside another MovieClip and it doesn't seem to be working for me
package jab.enemy
{
import flash.display.MovieClip;
[code].....
I have .fla file where I have instantiated an object of a class( testclass.as ) like this in frame 1
[Code]...
Currently I have two classes which are "bullet" and "enemy".There are two instances of the enemy class.Code from an ENTER_FRAME event in the Bullet Class:
ActionScript Code:
try
{
for(var k:int=0; k<getEnemys.length; k++)
[code]....
The Enemy Class has a private variable called "hits".What do I have to do in order to reduce the hits of the instance of the enemy that was hit by the bullet?
These two functions are taken out of my as class file, even though the setInterval is never cleared it only calls generateParticles 1 time. Someone please help me figure this out. I have been messing around with it over an hour but still can find why its only called once. emit is a private var Number declared outside the function in the class.
[Code]...
I have a Color class where all the data is stored in a single uint named "_value". However, the constructor for Color looks like this:
public function Color(r:uint = 0, g:uint = 0, b:uint = 0):void
{ _value = (makeChar(r) << 16 | makeChar(g) << 8 | makeChar(b)); }
If I want to create a clone() method, I have to first convert the "_value" variable to an RGB object, then, the constructor automatically converts the object back into a hexadecimal value. Blatent waste of efficiency! However, I would rather have the constructor be user friendly and allow them to type in each color value instead of one hex value (they can use the Color.fromHex() if they really want to, but it does the same as the clone() method and converts back and forth).
Is there any way to instantiate a class without going through the one single constructor function? Any way to set up a private constructor in addition to the public one? Most Visual Studio languages allowed you to have multiple constructors, and the chosen constructor is determined by the passed in arguments. This was really convenient, but sadly, AS3 only allows one constructor, right?
Normally when creating small apps, i create a small object something like this.
Code:
//Example
var theApp:Function = function(){
[code].....
Take a look at this code:
Code:
import mx.utils.Delegate;
class Test
{
[code]....
Well... Doesnt work at all... In the class, there isnt a instance of i, so, how may i access this property inside a class function? But i still have an way to access the class.
I could do this way:
Code:
class Test
{
function Test(mc:MovieClip)
{
[code]....
But this way, doesn't sounds good
I have this extremely odd problem. OK to start off I have an MC in my library with the linkage identifier "Interface" and the AS2 class "Player" (both without "" of course). Now, my player class looks like this.
[Code]...
I have a Debug class I've written, and I'd like to include a static trace() method in there, unfortunately I have no idea how to then access global / top level trace as effectively I've blocked it with the local static scope.[code]
View 4 Replies