ActionScript 3.0 :: Declaring Variables In A Sub Class But Using Them In The Base Class Constructor?
Sep 20, 2009
I am creating a Weapon class for a game and the weapons itself will be the sub classes. The sub classes will hard code some values (such as max ammo and the weapon name).
I trying to access this declared data in the base class constructor, at the moment it's not outputting the values. Is this possible?
I've broken my Weapon class for simplicity:
ActionScript Code:
package
{
import flash.display.MovieClip;
[Code]....
My current workaround is creating a protected method in the base class to trace the information and calling that method in the sub class's constructor, this works fine but this doesn't seem like the most efficient technique?
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Sep 8, 2009
I have a bunch of movieclips( clip A and B for this example) in my library that I want to use the same base class (MyClass.as in my example). I assigned the same base class in each clips property window and then gave each clip a unique class name which doesn't exist so flash says it will create the class automatically.
Now if I create a bunch of A's and B's on the stage via actionscript, how would I send variables to the constructor in MyClass.as without having to creating A.as and B.as to pass the variables along to the base class? if I do: Var newA:MovieClip = new A (argument 1, argument2, etc) It says it expects 0 args since the A & B classes were created automatically by flash.
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Jan 26, 2012
I have a base class "Vehicle" and a derived class "Car".
[Code]...
Basically, I want to set a vehicle property in Car's constructor, call Vehicle's constructor with super() and have Vehicle do something based on myVar. But this is the output i get: car pre: null car post: car vehicle: vehicle Why does myVar not keep the value of "car" when the base class constructor is called? How am I supposed to implement this correctly?
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Jan 29, 2011
I want to create an instance of a subclass from inside a static superclass method. Here is an example:
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Feb 4, 2009
already searched for this kind of thread here but didn't get any answer that suited me.
It comes like this, I made this class (LoadWebPage)to basically remove the old Swf and load a new one. I've associated this class to my menu Btn's.
[Code]....
And I'm getting that 1203 error saying that my class doesn't have a default constructor.
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Dec 15, 2011
what is the difference between something like
package {
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Jan 1, 2010
I have been practicing and trying to understand how classes work and I was wondering if it is possible to create a class that can be reused by declearing the class only once in my fla file. Rightnow I create an instance of the class than I asign it to a MovieClip the problem is that I can only use it once and if I want to use it again I have to create another instance of the same class, something like this.
[Code]....
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Jun 17, 2010
I'm having a little trouble with my move to as3, (surprise surprise huh?) Basically when I create a movieclip, I wan't to pass some values into it, like so:
Code:
var menu=new Menu();
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Jul 16, 2009
I'm slightly new to Flash CS3 + AS3 combo, so its more of a lack of practice question. My question stems from the problem described here http:[url].... . Note, its not the same problem, its a new one.The Problem ,So I have multiple library assets (which are on teh stage) and I want to assign similar functionality to all of them.
Attempt 1: So I create the n assets, create a custom class in AS3, link them to Flash CS3 and obviously enough it gives me the error that multiple assets can't be linked to the same class.Obvious enough to understand (well not completely, because from a programmers background it doesn't make sense).
Attempt 2: Same as attempt 1, but instead of linking all the assets to the same class I make the base class the same class, and let the derived class be dynamically created by Flash on compile time.So the linking works, but the problem is, in my base class I have a method which does something (say an tween) on a child of the library asset. So if the assets on the stage/library are called asset1, asset2, asset3 (same name for asset name, class name, id name), each of them has a sub-movieclip called ... say 'foo'. now if I manually wrote a class for each asset, I could do 'this.foo' to play with the sub-movieclip. However since this functionality is in the parent class, I'm unable to do it.
P.S. If you're form a programming/OOP background, its basically a abstract class problem. My Base class knows how to doSomething(), but it needs aSomething, which is defined in the Derived classes. However I found out that AS3 classes don't support virtual(C++ )/abstract (Java) in the true sense of the word (unless I missed some obvious documentation).
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Sep 29, 2011
Let's say Class A has the flash.events.Event imported. Now let's say Class B extends Class A. Why in the hell do i need to import flash.events.Event in Class B? It makes no sens at all to me.
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Jul 22, 2009
I'm trying to create a new instance of a MovieClip when the original one has been used. Would sound easy enough. Just use: var
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the class name/mc in the library im trying to duplicate is MCg1 so
var instanceName:MCg1 = new MCg1(); right?
However, the particular object in the library i'm trying to duplicate has a base class that is an external class file (just to control it's drag drop functionality)... i.e baseclass is not set to the standard flash.display.MovieClip, or whatever the case maybe. So i end out with a: TypeError: Error #1009: Cannot access a property or method of a null object reference.
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Jun 22, 2010
I have this Fla which contains a symbol that is linkaged to a certain class that is in my project. That class inherites a base class named CMovieClip which resides in one of the libraries that is in the class path (and inherites from MovieClip).Of some reason, every change that I do in the base class doesn't seem to influence the resulting linkaged class, much as if this library is cached somewhere that I can't feagure out.I tried to create the same conditions in a separate Fla but it does not repeat the issue.I tried to duplicate the symbol but the issue isn't solved that way.
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Mar 1, 2011
I created a movieclip with a star. Then, I creates a document class and I named it as Main.as.
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package
{
import flash.display.*;
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[Code]....
I´m not posting here all the code, but you can easily see that I´m using x_origin and y_origin variables to keep the original position of the movie clip. I will use them to move the star back to the original position.
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Feb 9, 2010
say that i have a base class called Base, that is Bindable and has a String property like this:
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Data binding will not be able to detect assignments to "msg"
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Jul 6, 2011
I have an mc called sunny. In the properties panel I export her for actionscript. I put Sunny in the main class and Drag in the base class. The reason for this is that I want her to be draggable. I can't use Drag in the main class as another object is using that name. The Drag.as has the drag functionality. Why can't I drag her. I already have a solution - I wrote a specific class for her and extended the Drag class. However, if I have 10 mcs I'm not going to write specific classes for all of them. Summing up: Using the base class Drag in properties panel - why isn't she draggable?
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Sep 17, 2010
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{
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Sep 25, 2009
The header says it all. I am trying to import a couple of classes without attaching a document class to the fla file. Is this possible? I have the class path set as appropriate (I think) in the publish settings since my fla is located inside a swf folder and my classes folder is located outside the swf folder. Its how my project is organized.
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Apr 8, 2010
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May 12, 2011
In my document class I have this
[Code]....
It does not matter where I declare the var __w:Who in the constructor, as a class var or in another function entirely. The whole thing still operates normally but it's irritating not being able to set my stage.align=StageAlign.TOP_LEFT; in the constructor.... I am guessing it is something in my Who class because it does not happen if I declare any other vars the constructor in Who pretty basic:
[Code]....
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Oct 16, 2009
Now I would like to use the variable out of class1 in class2 and change the value there.Afterwords use class2 in the main, but I get an error message. Why?
ActionScript Code:
//class No. 1 "MyClass1.as"
package MyPackage
[code].....
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Apr 28, 2010
What is the correct syntax to initiate a function in a class similar to constructing an associative array? I have a function that's custom variables is ballooning out and I'd like to label them in the call for sanity sake.
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Feb 20, 2009
get the base class of an object ?
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Feb 22, 2009
How do I pass a variable to the subclass? [code]...
When I run this, I get back. Access of underfined property. How I get the subclass inherit the variables from the base class?
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Mar 30, 2010
I'm creating an application with an animated kid figure. All the kid symbols sit in a kidLibrary.Fla file, Each of these symbols have a class named "Kid" linked to it on its Properties >Base Class. This Kid class is responsible for setting the right color and hair type for each kid symbol instance. Every time i need to include one of these kid symbols i drag it to the current .fla file I'm working on. If I place only one kid symbol in the library of the file I'm working on, everything works fine!
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[Code].....
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Apr 1, 2010
I'm writing a series of Search windows for an application. I create the FLA files on the stage, each has 3 simple buttons: next_btn, prev_btn, and close_btn. Those all have event listeners which call findNext(), findPrev() and closeWin() respectively. Each search window looks for different things, some with a text box and some with a combo, etc.
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[Code]....
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Nov 8, 2010
I frequently create a lot of Library Symbols, export for Actionscript, letting Flash auto-generate the Class & extending a custom base-class in order to give them all custom functionality w/out having to create a Class for each, and/or without having to create a FactoryClass for instantiating X number of ClassObjects for each Symbol to be added to.It's really fast for prototyping, and with this workflow I've only hit a few obstacles. Those are:
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