Flash :: MovieClip Can't See Base Class Methods?
Aug 12, 2010
I have this base class
package sevengames.miranda.front.res {
import flash.display.MovieClip;
import flash.text.TextField;
[Code].....
I then, in the Flash document, create a movie clip which has this class set as the "Base class" in the properties. However, if I then do this.updateText(); in the movie clip's frame script, it complains
TypeError: Error #1006: updateText is not a function.
at miranda_fla::MenuButton_3/frame1()
Why doesn't it work? I know the class is read and compiled, because I had an error there which was reported.
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Dec 19, 2010
I have a holder movieclip, its base class is foo.[code]I put a trace in the constructor of bar so I can tell if it's being loaded properly, and when I drag out foo onto the scene and run the clip, all the little bars within it fire off correctly. However, when I add it to the scene dynamically, such as like this in the Main class:[code]Suddenly, all the little bar movieclips within foo revert to regular old movieclips and don't fire. What's interesting is if you typecast one them as Bar at some point, and their normal class is set to Bar (within the movieclip itself, rather than base class), it works and the constructors all fire, like this:[code]However, if you want multiple different types of Bar clips, and give each a base class of Bar, this won't work. They all spawn as generic movieclips. It DOES work if you go through and typecast them as either Bar1 or Bar2, but that means in practice you would have to try to typecast every child as every top-level object type every time you added the clip to the stage. You also can't have a bunch of movieclips of the same type since Flash doesn't allow it, so each one needs to be a new class, and have that class typecasted when the parent is placed on stage. Kind of defeats the purpose of OOP.
This seems to be a bug in Flash itself, but is there any way to fix it?You can download an example file here with a couple extra traces to show off what's going on: url... It still has its children, they're added and displayed, but their type changes to MovieClip, ignoring the base class.
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Aug 27, 2008
Let's say I have a FLA file with document class called main. In main, let's say I have a method called test1 that just outputs "hello world" via trace. On the FLA I have a movie clip. In that movie clip, when the timeline reaches frame 123, I want it to invoke the test1 method (I just set up a simple action on the frame). However, I get an error saying that the method is undefined. I try this.parent.test1() too but that gives me the same error. Is it not possible to invoke a document class property from within the timeline of a movie clip that's on the stage?
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Jul 6, 2010
I have a Actionscript base class already created but when i type in the location for it i get back the file cant be found error.This is the url for my code
gamegamesmygameutilitykeybinderChanger
Now i have tried it without the as3 format but it just seem to find this file.
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Oct 13, 2011
I'm working on a iPad game in Flash Pro CS5.5 and it was compiling correctly. Now I have marked a lot of MovieClip classes for Export for Actionscript so they use a custom MovieClip subclass as base class.
When publishing the movie I get a SWF without any actionscript in it (publishing takes also a lot less time then before). Now I have a suspicion this is because there seems to be a limit on the number of Export for Actionscript you can have?
The problem is that for iPad I can not split my .fla to create multiple swfs; since swfs that you load via the main document can not have any ActionScript in it (I tried already to put all the sounds in a seperate SWF with export for actionscript turned on, that didn't work).
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Aug 5, 2010
Is there any way to add methods to the existing MovieClip class so that later I can use them everytime I instantiate a MovieClip? Something like this:
PHP Code:
package { import flash.display.MovieClip; public class myClass extends MovieClip { public function myMethod() { //do stuff } }}
Then, without instantiating myClass, I want to be able to call that method like this:
PHP Code:
var newMc:MovieClip = new MovieClip();newMc.myMethod();
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Oct 17, 2009
Here is the situation:I have created a movieClip named "tp_crack" on the timeline and created its class using linkage called "tp_crack".The tp_crack mc is like a small rectangle which breaks in 3 seconds when it is played.I have a seperate class in which I have used tp_crack to create many instances of tp_crack going by the names: cracked1","cracked2" etc.These instances are present in another movieClip (this time created within the class) called "crackContainer".Now I have added the following code to check for hitTest of those cracked1,2,3...... with a spaceship.The hitTest works but flash does not recognize the pieces as movieClips and does not play them as required, instead it gives me an error saying:1061: Call to a possibly undefined method play through a reference with static type flash.displayisplayObject.
for (var i:uint=0; i<crackedPieces; i++) {
if (crackContainer.getChildAt(i).hitTestPoint(Spacesh ip.x,Spaceship.y+(Spaceship.height/2),true)) {
[code].....
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Dec 13, 2010
I want to add a custom method so that any MC can use it like this - Code:text1.fadeIn(2) - which would fade text1 in over 2 seconds. The actual method isn't important, it's the way to add it as a custom method for ALL MCs that is confusing me.I can add it inside the document class (that extends MovieClip) like{/*fade in over tt seconds etc*/};But pretty much everywhere I look peoples are choking on their coffee shouting not to use that method. So is there a nice, clean way to do it without using prototype?BTW I want to add these methods in a class that is imported into the main document class at compile-time. So my main doc class has code specific to this SWF but the general external classes like Effects and Transitions are imported as needed.
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May 30, 2005
I've got a custom class (using AS2) that mostly does things like set the score and level of a game, as well as sets the player's lives on the screen. I need to unload and attach MovieClips within the Lives control function, which require those methods from the MovieClip class. I don't think I need to extend this class from the MovieClip class, I think I need to import the class somehow. I don't know the path though..something like mx.MovieClip.
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Jan 31, 2010
I've got a class (say ButtonBase) that extends MovieClip. ButtonBase has a method that names it ((this.)name = 'bb1') and adds it to the MainTimeline. Now I can see my extended ButtonBase MC on the MainTimeline. And if from a frame I write trace(this['bb1']), it returns an instance. The problem is that the instance is not recognized as an instance of ButtonBase. Suppose ButtonBase has another method, say testMethod(). Well, if I trace(this['bb1'].testMethod) from a frame on the mainTimeline, it returns undefined. If I trace(this['bb1'] is ButtonBase), > false I can attach a fla if you need it.
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Nov 22, 2010
How do I write my class so it passes all of its functions/methods to the calling movieclip? For example, the following code imports my graphics class and creates a square:
ActionScript Code:
import sprites.vectorGraphics;
var vGX = new vectorGraphics();
var newSquare = vGX.createVector(this, 'square', 'rectangle', 20, 20, 0xff0000, 1, 0x0000ff, true);
That I'd like to be able to do is this:
ActionScript Code:
import sprites.vectorGraphics;
var newSquare = createVector(this, 'square', 'rectangle', 20, 20, 0xff0000, 1, 0x0000ff, true);
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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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Sep 17, 2010
I have two SWF files which I shall call container and slave. The slave file contains a movieclip that extends from a class I shall call base. base extends MovieClip and is compiled into an SWC. slave includes this SWC as a runtime library, while container includes it as merged (and does reference it so it should be compiled into the container SWF).
The container loads the slave like so:
bgURLRequest = new URLRequest(slaveUrl);
var context:LoaderContext = new LoaderContext(false, new ApplicationDomain( null ), SecurityDomain.currentDomain);
bgLoader.load(bgURLRequest, context);
When this loading happens, I get the error that class base was not found. I suspect this has something to do with the presence of the ApplicationDomain in there. I'm not sure what it does exactly, since I didn't write this loading code myself (but I do know that it's there for a reason so it can't be simply removed).
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Apr 14, 2011
I have a program where I have multiple classes derived from a base class. I want to take all instances of the different subclasses and put them into an array. Is there a way I can search for anything derived from the base class?For example, right now a get the number of children, then see what they are, so:
for (var i = 0; i < this.getNumChildren(); i++)
{
if (i is "type")
[code].....
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Mar 10, 2011
If I've already specified in the symbol's package which class the symbol's class extends, do I still need to specify the base class in the symbol properties dialog?
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Mar 24, 2009
when I create a new flash project, I would like to put the source files in /src/ folder.When I try to add the base class to my project, flash can't find it.I've added the folder "src/" to source paths, in flash preferences.
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Nov 2, 2010
I have a class "BaseMenu", which, needless to say, is a base class to menus that have eventlisteners. When I trigger the function to remove the menu itself, I don't know how to remove these eventlisteners, since their respective functions are in the extended classes, not in "BaseMenu".
Code:
//...
public function BaseMenu() {
this.cacheAsBitmap = true;
alpha = 0;
y = 400;
[Code] .....
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Aug 26, 2011
So I know you can assign a base class to a library definition within the Movieclips library information field but If I have 30 items in the library and I change the Base class this becomes a pain in the ass, can this be done programmatically when I instantiate the library definition?
var new_shiz:MyItem1 = new MyItem1(); // Needs to have a generic base class of MyItem
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Dec 28, 2010
For some reason Adobe doesn't allow us to change the size of the handle in the default slider component. This handle is small and hard to click on quickly. If you try to increase the size of it graphically it just gets resized back down to 13x13 pixels. I've looked into the Slider.as code found in:
Program Files(x86)/Adobe/Adobe Flash CS4/Common/Configuration/Component Source/ActionScript3.0/User Interface/fl/controls/Slider.as
And found that on line 803 there is the code thumb.setSize(13,13). I tried changing that to 60,60 but it doesn't change the size of the handle. I don't know much about classes and I didn't think you had to compile these. I thought that in Flash when you clicked on the Components button that it loaded these classes in at that point but I must be wrong.
ActionScript Code:
override protected function configUI():void {
super.configUI();
thumb = new BaseButton();
thumb.setSize(60, 60);
[Code] .....
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Jan 21, 2010
im getting an error message that flash cant find the base class. i put the as file and the fla file in the same folder, isnt that the first place in the classpath?
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Mar 24, 2009
I have a symbol in the Library with a Base Class that extends the MovieClip Class and adds some additional functionality. I want to be able to export this from the Library by right clicking on the symbol and selecting Export SWF. I was hopping this would essentially give me the same results as if the symbol contents was on the main timeline and I had declared the Base Class as the Document Class. When I import this SWF using the Loader Class it seems to loose all of Base Class functionality and think of itself as a MovieClip.
Looking at the below sample code, the alpha property is correctly set but the param1 getter is unaccessible. What the hell is going on?
[Code]...
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Feb 9, 2009
determine the base class of a Flash library object at runtime, using Actionscript? The toString method gives me the class of the object, but what I'd really like to determine is the superclass of the object. So, if I have an Actionscript class called "Fruit" and I created many different Fruit types in the Flash library ("Cherry", "Apple", etc.), is there a way in code I can determine that an "Apple" is a child of "Fruit"?
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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
instanceName:ClassName = new ClassName();
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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Dec 7, 2009
I have a class file named Main.as and another class called icon.as
package {
import icon;
public class main {
public var _time:String;
function main() {
[Code] .....
How do I get the current update from the main class without calling the MainObj repeatedly. Is this possible in Flash AS3, or any other alternate method for this idea.
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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.
In that document class I wrote:
package
{
import flash.display.*;
public class Main extends MovieClip
[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.
The problem is that instead of being 20 and 30 respectively, tracing them I see that they are both ZERO. So when I drop the star, instead of going to x=20,y=30 it moves back to x=0 and y=0. I´ve to get the star position relative to stage, but I can´t find anyway!
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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:
[Bindable]
public class Base
{
public var msg:String;
[Code]......
where msg is some textInput field. I am getting a message from the compiler that....
Data binding will not be able to detect assignments to "msg"
is there a limitation with data binding to a base class?
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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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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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