Actionscript 3 :: Get List Of Ancestor Classes For The Object?
Jul 3, 2011I would like to check if object has a DisplayObject as one of it's ancestors and perform some operations on it if it has. Any quick and easy way to do this?
View 2 RepliesI would like to check if object has a DisplayObject as one of it's ancestors and perform some operations on it if it has. Any quick and easy way to do this?
View 2 RepliesIs it necessary to import the classes that an ancestor has already imported?Is there a keyword I could use so that the imports are implicit when I create an inherited class?
View 2 RepliesIs there any way to get a list of custom classes? I'd like to be able to dynamically access the custom classes (that I've created by the "Export for Actionscript" checkbox in the "Linkage" dialog) without having to hard-code their names into the script.
View 2 RepliesFinding descendants are easy. But how do you find an ancestor? Consider the attached XML. How would I find the group whose ancestor is subitem(@id=1)? I can get subitem easily, but I don't know how to determine what group it's in.
I would imagine a syntax something like this:
xml.group..(@id==8)
or
var subitem = xml..subitem.(@id==8)[0];
xml.group.(contains(subitem))
But I can't find a way other than to iterate the tree upward from subitem using parent().
I can't figure out why the event listener callback function isn't being fired when a child object is being clicked. Since the "SelectionPoint" object is a child of this class, shouldn't the listener get notified of the MouseEvent.CLICK event during the capture phase?
Code:
package {
import flash.display.*;
[code]....
Is there a way in AS 3 to list all classes and their associated methods? Or at least a way to list the methods within a particular class?
It seems that it's all so overwhelming and although I'm well versed in Lingo and have a handle on the Lingo dictionary,I feel as though the AS 3 library is dauntingly big.
I'm working on a project where I need a sort of quick list of class functions.
To clarify, say a user starts typing MovieClip. I want to bring up a list of classes as the user starts typing, complete with the package name. Kind of like the action you get when typing in a Google search or something.
Really, I just need to find an XML or JSON list of all classes, including packages, that I can load when the application loads up, so that I can create the quick list.
I've been scouring the net, but perhaps I'm not formatting my search query quite right, and I'm getting no hits.
I'd really hate to have to create a program that goes through the LiveDocs and parses all of the HTML to output a file with all of the classes.
I'm making the game Breakout as an AS3 application using OOP. I am getting very confused though. I know that objects should be only responsible for themselves. But this is where I get stuck, they need to communicate as some level to add and remove screens, and I am getting majorly confused as to what is going too far, when it could maybe achieved in a simpler more OOP way. I've worked out the hierarchy of my classes, in terms of where they are being added (I think). I've added a screenshot of the hierarchy.
Have I got the order right based on OOP principles? Like, Introscreen will listen for play being pressed then call a method of the document class that will remove introscreen and then attach gamescreen. Is that right? Another thing that puzzples me. It seems to me if I made a level and put the paddle and the ball in that, then arranged all the bricks in that level, that I'd be duplicating work (based on the fact I need paddle and ball for level 2 also). So it would be best if I could have gamescreen with paddle and the ball and then add level1/2/3 to display list which would therefore set up the appropriate brick placement. But then, wouldn't that mean that I couldn't do hittests because my level 1/2 or 3 wouldn't be a sibling to the bat and the ball, them residing as a sibling in the level's parent class?
I have created a list of Classes in a school in Excel and saved it as an XML file. In each row it contains the name of the class followed by a list of class members. In col 1 is the word "Class", in the next col is "7C1" ( or equivalent) then each cell after that contains the names of the class members. I can load the XML file no problem, and display the full contents using 'trace', but I don't seem to be able to extract just the class names and student names to use in a Flash application. The code I'm using so far is attached.
View 3 RepliesI have several Flex applications in a project, and I would like to know if there's a way to get a list of the classes (and ideally, other assets) that are being compiled into each one. I want an easy way of making sure I've kept things separate and there aren't unnecessary dependencies. Any ideas? I'm running Flash Builder 4.
View 3 RepliesI would like people to be able to change this custom scrollItem class, but as the scroller class has some interaction with this scrollItem class (sets id etc), I have the scrollItem class implement an interface to guarantee the presence of the required methods.This works fine, but only if I keep the type of the scrollingItem class within the scroller class. I would prefer to substitute in the interface type for each scrolling item. However, I cant, as the interface is not a DisplayObject. I can get around this by casting the interface type as a DisplayObject whenever it needs to do DisplayObject type things, but this seems like a hideous hack.
View 5 RepliesI am creating a component that will be a large plus or a large minus. I don't want to use a bitmap because even I can draw this using the Graphics class, but the component must be clickable (the Shape class is not). It will be part of an item renderer, so I want it to be as light-weight as possible. UIComponent does not seem to sent CLICK messages.
View 3 RepliesWhat I want to do is compile an .fla with nothing on the stage but several of the movieclips are set to export on first frame in the properties linkage manager. When the .swf runs, I want to loop through and get the names of all the exported assets so I can place them in an array and manipulate them later.
I want to turn the code over to the art team where all they have to do is attach my .as file for the document class. I will not know what they name their movieclips, yet they are instructed to name them alphabetically according to what order they should appear. (My code is a sort of self contained slide show).
A Flash movie loads another movie that contains various asserts - movie clips in its library with 'Export for Action Script' settings set.
Is there any way to determine the list of class names of all these exported asserts from within the movie that loads them?
Is there a way to get a list of all the skin classes that are in the current application? I'm using Flex 4.5.1.
Here is the loop that I'm using now to get all the skins,
for each (var item:Object in styleManager.typeHierarchyCache) {
for (label in item) {
if (label=="spark.components.supportClasses.Skin" ||
[Code]....
The reason why is because I want to list all the skins in the application and then be able to apply them in real time so I can see what they look like.
I have x amount of classes in a package eg. "com.trevorboyle.lotsofclasses" and I keep adding more (These classes will probably all be static and will probably all extend the same class).I wish to create a drop-down list of all these classes, preferably without having to manually create an array myself.
Once a class is selected from the list, I'll be able to use getDefinitionByName to return it, because I will know it's name at this point.The question is, as I believe there is no support in AS3 to list all the classes in a specific package, is there a design pattern that handles this?
I have a project that i'm working on, and in the project it's important that i have an object that i can create with actionscript that already has two arrays inside of it. To do this, i made the movieclip, i checked export for actionscript in the library, and in the custom class that corresponds to that object i made the arrays with the following code:
package {
import flash.display.*;
public class cont extends MovieClip {
[code]......
classes. GiftMain and GiftItem. i attached GiftItem objects into GiftMain. Actually there are 2 more movieclips between them. i declare a variable in GiftItem as giftMain to reference it to the GiftMain. i have a function in GiftItem which is as below;
[Code]...
trace outputs the right object in this function in GiftItem class but at another place in the same class, it outputs undefined when it is traced even though it is global variable. I just want to reach GiftMain from GiftItem without using _parent or _root. How can i do that?
Is it OK to use the constructor to set properties for a value object class or must I use dot notation and set each one, one-by-one? I recently read an article that was saying I should do it one-by-one as value objects should only contain properties and went on to say using the constructor is not OK (best-practice wise).
Code:
("not OK")
var employee=new[code].............
I have 2 different classes that contains different object. And I control from another custom classes on when to load which class. The custom class will load a class when first run, and switch to another one when selected. My problem is, although I called the next class, but the object does not appear. The class that controls which to load
ActionScript Code:
package classes{
import flash.display.MovieClip;
import flash.events.MouseEvent;
import flash.events.Event;
import classes.streamVideo;
[Code] .....
I want to make a flash movie with cars of different kind. Every car looks different and have their own specifications like weight, horse powers, top speed. So.. I want to create a class Car that can hold the variables weight, horsePowers, topSpeed and should be linked with a specific MovieClip (the car).
The problem is I cannot link all my MovieClips, holding the cars, to the same class Car.Should I create a container to associate with the class and then place different car MovieClips in them depending on which car object I'm creating? (so the MovieClip itself is sort of a variable)
Code:
package
{
import flash.display.MovieClip;[code].....
And then I create an empty container_mc and volvo_mc, audi_mc, opel_mc. container_mc is linked with Car
var theVolvo:Car = new Car ( 1230, 230, volvo_mc);
I am trying to get my Actionscript program to turn in a key-value (more specifically: a key, value1, value2) object into a server. I am doing the html request properly, but I'm not sure what kind of object to send;
View 1 RepliesI'm new to the object oriented stuff and I'm trying to learn how it works. Here's what I've started on - it's led to a few dilemmas. I have one flash file and two .as each with one class. In the timeline of the fla file, it reads:
ActionScript Code:
var FileObject:ScriptFile = new ScriptFile();
function onEnterFrame(){
FileObject.CallInput();
}
Call input is a function in "ScriptFile.as" that calls another function in "Input.as";
ActionScript Code:
class Input{
public function Input(){
} public function keyListener(target:Number):Number{
[Code] .....
In output, when I press Left, it will say -5 over and over again, and I'm trying to add to xpos value but that isn't happening.
I've recently come to a roadblock in my code for a non-visual class I created; a sound class if you want to know. At first I coded with it extending Sprite (I can't remember why I started it out that way, but that's the way it was). When I came back to this code, I thought that extending sprite doesn't make any sense if it's an audio class and non-visual, where is no real reason to add something to the stage if you can't see it. So I removed "extends Sprite" from the class and errors started popping up around "dispatchEvent" coded areas. I then tried putting back the extention with "extends Object", hoping that would solve the problem; got the same thing. I've searched with google on why I can't use dispatchEvent on objects or classes not extending anything, but it only came up with how to use dispatchEvent with the usual MovieClip or Sprite tutorial.
View 3 RepliesJust wonder if I can reference entry point object from any place in the app? Is it maybe assigned to some global object, like stage is for example? Currently I use static methods and variables, but this breaks encapsulation.
View 2 RepliesI am having problems storing an array of objects, all of which are the same custom class in an LSO and then reloading that array from the LSO without losing the class type of the objects in the list.
I know how to store a single object of a custom class and load it withe the correct class type using the registerClassAlias() function, but I cannot seem to apply this to arrays of objects.
I am trying to save an array called messageList. Each element is a custom class GameMessage with a property called gameLevel. After I load the LSO I am trying to do something like
trace("0th message is from level " + GameMessage(messageList[0]).gameLevel);
And I am getting an exception of like this:
TypeError: Error #1034: Type Coercion failed: cannot convert Object@90fdfa1 to GameMessage.
I have registered the GameMessage class using
registerClassAlias("GameMessage", GameMessage);
and everything works if rather than a list of messages I try and save/load a single message.
i have this really basic class and all it does is create a button...i have another class called main where i want to put the button on the stage...problem is it all compiles but can't get the button to display..
public class Main extends Sprite
{
public function Main()
{
[Code].....
How do I get the list of all methods from an object? I know I can get the object class in this way:
var className:String = flash.utils.getQualifiedClassName( myObject );
var objClass:Class = flash.utils.getDefinitionByName( className ) as Class;
In JavaScript I can iterate over the prototype of an object to get its properties and methods. Is that possible in ActionScript 3? Do you any good source for metaprogramming/reflection over ActionScript 3?
Is there a way to make a display object always be at the top of the display list?For example, I know you can set the childIndex, i.e:setChildIndex(myDisplayObject, numChildren-1);But is there a way that an object has sensed that something else has been added to the display list and restack themselves accordingly?
View 2 RepliesI am having a hard time understanding for...in loops. I have seen David use it in his signature, and I understand what the loops is doing, but only from the context of the rest of the signature. If somebody could explain how the for..in loop works, I'd be greatful. Here's what I know:
PHP Code:
for (proprtyThing in objectThing) {
trace (proprtyThing);
}
My understanding of this loop tells me that if I run it, I'll get a list of all the properties of the object named objectThing....but this makes no sense to me!!