ActionScript 2.0 :: Create MC From Class And Add It To Stage?
Oct 20, 2009
I have a class that I want to be able to create a movieclip from and then add it to the stage when it's instantiated. The constructor takes two arguments but nothing special.I had one solution that added the movie clip, but then I couldn't modify the _x and _y values of it directly from the .fla. What would be the best way to do this? Should my class extend MovieClip or no?the formatting is something like:
Code:
class Foo extends MovieClip{
private var _mc:MovieClip;
I'm new to Flash AS3. I started making a game and I am a bit confused. Let's assume that I want to create a game that has multiple levels/modes, how can I do this in an object orientated way?
When i create games in other languages e.g. XNA C#, i create a separate class then create an object of that class within the main class and run the game based on a simple statement.
I have a class called shapeC that only creates a rectangle and then addChild(rectangle);. That class is instantiated on the main timeline. Currently, the only way you can see that rectangle is to add the instantiated class to the stage via addChild(shapeC);. My question is, is there a way that the shapeC class can add the rectangle to the root stage without requireing the instantiated class to be added to the stage?
I've been playing around with custom classes. My objective was to create a custom class (Testing) that would create a box when an instance of the class is created. I've tried three different approaches, however only (3) seems to be showing up. I'm just curious why (1) or (2) doesn't work?
Also is there a better approach than (3)? Since at the moment it's been created on _root. I hope the box can only be accessible through the instance. Since I'd like to incorporate the whole idea of public, private, encapsulation, etc.
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).
How to access a display object on the stage in a class which is not a document class?
I am looking for a solution that doesn't involve passing the stage as a parameter to the class.
One solution i always come across is using "TopLevel.as". Is it a good method because as far as I have heard using global variables is not recommended because it might cause some problems while working on big projects.
I was wondering how do you access the stage property from a different class that's not the principal class tied to the fla? Essentially, I have main.as which calls another class menu.as, and I can't seem to be able to use the stage.stageWidth property from menu.as. What's the proper way to be able to use the stage property from any class? Do I have to import it separately each time?
I have created a class, call it Class1, that has various objects drawn on the stage (drawn in the IDE). It also has a function, called setColour, for changing the colour of those objects. The function works fine if I call it from within Class1.
Now I have another class, call it testClass1, that imports Class1 and calls the setColour function. First of all, none of the stage objects from Class1 are visible. Secondly, when setColour tries to modify the colour of an object, I get the error:
TypeError: Error #1009: Cannot access a property or method of a null object reference.
i) Create a symbol called SimpleSquare. This should consist of a simple red square graphic
ii) Create a class file to define a class called SimpleSquare. This should be linked to the SimpleSquare symbol. SimpleSquare ashould have the following functionality: When the instance is placed on the Stage, it should start to disappear by decreasing its alpha at 0.01 in every frame (hint: alpha)
create a class that delivers the a text format to a requesting class. Unfortunately, even though when I trace the return it comes back with [object TextFormat], I do not see the results of the formatting. Heres [part of the clas trying to use the txtformatting class:
ActionScript Code: private function buildTF(msg:String = null):void { with (_tfield) { alpha = 1;
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.
I'm being really dumb today and I know this should be simple.....How do i access the stage from a class which isn't the Document Class? For instance, I want to create a tween which takes in the parameters of the stage's width? So I've written.....
ActionScript Code: var myTweenX:Tween = new Tween(this, "x", Regular.easeOut, this.x, stage.stageWidth, 60, true);
I have a problem with classes. What I am trying to do is this: I create a main class and then i import another class into it.then I create an instance of the new class and add it to the stage.the problem occurs when im trying to use the new classes methods.
import classes.NewClass; var test:NewClass = new NewClass(); addChild(test);[code].....
I have 1 class that extends movieclip, let's call it Class0. I have 1 class that extends movieclip, let's call it Class1.
I create an instance of Class0 on stage like : var myClip0:Class0 = new Class0(this, "Class1");
The class Class0 when initializing, will create a new movieclip (myClip1) and add it as child, as an instance of Class1, like myClip0.myClip1. But it's when i create that clip, i want to tell it, it's an instance of Class1, like :
private var myClip1:Class1 = new Class1(this);
Where Class1 could be any class.
How do i pass Class1 to Class0 so it can create it dynamically?? Do i have to use the apply function??
How do i access the stage from a class which isn't the Document Class? For instance, I want to create a tween which takes in the parameters of the stage's width?[code]
I want to create a movieclip class that subclasses another movieclip class and inherits all its properties (rather than having to rely on the include statement). In my project I'm using:An abstract parent class that extends a movieClip: "infantryDroid".[code]However everytime I try this, flash acts as though nothing was imported from the parent movieclip class.If I was to try the above code I would get the message that _root and speed (which were defined in the parent class) "are undefined".
I am new to AS3, as well as Flash in general, so forgive me if this seems highly elementary. All I am trying to do is create a custom class that extends the MovieClip class and contains a custom property of "marker". I want to be able to use and change the value of this custom property on the timeline for an instance of this class and have it behave just like any other (Ex: this.x ==> this.marker).
My assignment is to create generative art on a stage, such that clicking the mouse creates little .png planets i have designed, at random angles and at random locations around the stage. I'd also like some stars to flash on and off, also at random. Does anyone know the best basic starting point for this project? It must be entirely generated by code (onclick event, with another event refreshing and regenrating it).
I'm using Flash CS3 and wish to create a movie where the stage is a certain size but the actual content of the movie extends further than the stage. The user will be able to drag the stage from left to right to show hidden parts of the movie. Similar to the idea of a horizontal scrolling image gallery but without the scrollbar (see attached for example image).
ActionScript Code: var MapBtnArray:Array = []; var MapBtnSprite:Sprite; var i:int;
[Code].....
I'm using to code above to create several sprite on the stage, but when I click on the sprite, the index of each trace work just fine (output of J is according to the target i click); however MapBtnArray[j].x keep equals to "0"
I want the coordinate of the sprite on stage, how come what i get is "0" instead?
I started 2 days ago programming in as3, so I'm building a website and I want to create a pattern for my background.The pattern is a bitmap image 300px X 300px and I want to repeat it along the x axis and y axis of my document.My stage is 1280 x 800)And I want also to have the pattern to fill all the screen in case of the user's screen become larger than the resolution of the stage that I'm building the website on.
I've begun development on a isometric game, and have what I thought to be the hard part out of the way - the map generation from external files, screen-to-isometric conversions, etc. However I'm getting stumped on the "easy" stuff.Basically what I'm trying to do is this. Create a function that will add an object to the map (stage), then add an eventlistener so when it's clicked on, it gets added to the player's inventory. Lets take this sample code:
Code: public function addObjectToWorld(o:IsoObject):void { // ...code to add it to the world
I'm starting to learn AS3, and a question comes to mind. Let's say I'm in the authoring environment and I draw a rectangle on the Stage, set some properties - fill color, etc. - and then convert to button symbol.
Question 1 - Is Flash creating AS code that records these actions (create an instance, set properties, etc.)?
Question 2 - If Flash is creating AS code, is there any way we can see that code?
