ActionScript 2.0 :: Objects - XML - Creating A New Instance Of An Object That Uses An Identical Name To An Older Instance Delete The Previous Instance?
Mar 20, 2009
Does creating a new instance of an Object that uses an identical name to an older instance, delete the previous instance? Or should the original instance be deleted first? The code uses a ridiculous amount of XML vars. Isn't it less memory intensive to parse the XML and save the properties to an Object, and then delete the XML Object, rather than keep the XML Object around and reference it's child nodes directly? Is it better form to break up a huge XML file (>600lines/3200vars) into smaller chunks?
I am wrapping my brain around OOP in AS2. I am making two posts on two different subjects. My question here is: when should I use local instance variables, and when should I attach new properties to the instance object? (Feel free to correct my terminology.) Let's say I have a class for a scrolling background, which scrolls when I mouse over its edge. I want to put these values somewhere:
1) How wide is the border in which a mouseOver makes it scroll? This is basically a semi-constant I set it up once and keep it the same, unless the user changes it in an options menu to make the border wider or narrower. Call this scrollBorderWidth.
2) How fast is the background scrolling now? I want to track this so I can smoothly change the scroll speed over several frames. This is often changed. Call this scrollSpeed.
It seems I have two ways I can store and access these values and darned if I know which is better practice. METHOD A: Make them local variables in the class, so the scrolling background instance has them as local vars. I set them up thusly:
have a imageHolder_mc wich is calling the image from the local drive / server, and this container is inside of PictureHold_mc and that inside of Image01_btn.image01_btn.pictureHold_mc.imageHold01_mcand all this for 1 image tobe displayed in the website. But I am going to have something like 300. This is for example HomePage to ProductPage to SpecificIndividualProduct.I have created an instance but DO I NEED TO DUPLICATE ALL _btn and _mc all the way down? Or is there any better ways.And next question. I have done Home Page with 18 images called from the local drive but despite of Preloader showing 100% loaded page look empty for about 30 sec. and suddenly all images starts popping out ramdomly.
I have a library object (SomethingMC) which extends a custom class (Something). Something, in turn, extends MovieClip.If adding SomethingMC to the stage within Flash CS3 IDE, is it possible for it's super class (Something) to assign an instance name from a class constant (Something.THE_CONSTANT)?
The above does not work. It throws Error #2078: The name property of a Timeline-placed object cannot be modified. if the instance is assigned a name in the IDE, and it just doesn't work if no name is assigned in the IDE.
I have a BUNCH of bumpers of four types bounceUp, bounceDown, bounceLeft, bounceRight. during a collision which you hit determines the bounce so they always do the same thing so here's my question.....can i just name every bounceUp instance the same thing and then just add that one instance name to the list the collision detector checks?
i just dont wanna go through and name a hundred each of bounceUp s and bounceDown s individually as the potential for screaming increases proportionally.......
I placed a movie clip instance inside a button, and I want this movie clip to play when the button is released. I'm using this code on the frame containing the button:
function playMovie(event:MouseEvent) { this.theButton.theMC.gotoAndPlay(3);
Does anyone know if it is possinle to scroll a graphic or a movie instance as well as a text instance in flash. I want to scroll text and images as well. Actually text with imges embedded in it.
I have a function that creates a class, and at the end of the function I would like to delete/remove/destroy the instance. How do I do it (if it is possible)?
deleting class instances. say i have a bullet class. say the bullet class checks when the bullet hits an enemy. how to delete the bullet when it hits the enemy.
I can do removeChild(instance); to remove a class instance that I add with the addChild() method... How do I delete a class instance which I just did a new Class()?[code]...
I have a bunch of text boxes which are acting as labels on a diagram.The idea is all the labels are jumbled up to start with, and the user has to drag the labels to the correct place.So far, I have the labels, and they are dragable, but I want to be able to lock the label onto a specific area (I've called them crashzones) so that when the user drags the label onto the correct area, the label snaps into place.The 'crashzones' instance names, are indentical to the label instance names, with the exception that the 'crashzones' instance names have the letter 'z' at the begining.
On the dragStart event, something (maybe a string) would hold the instance name of the current label and add the letter 'z' to the beggining, so something like ... crashzone = "z" + label1;As there is an instance with the name "zlabel1", when the dragstop event starts, it'll do a 'hittestobject' on the instance "zlabel1".
I'm not entirely sure how to go about this.I've tried creating a string to hold the 'crashzone' name, but the hittestobject event doesnt work with strings i.e: hitTestObject(stringname);I've also tried with Sprite, but as the sprite technically already exists and has a name, I can't give the sprite any properties.
I have a base class which is being created via remote_object [RemoteClass alias] from the server.I have other specialized classes that are derived from this baseclass, but serialization with the server always happens with the base class.The base class has meta data that defines what the derived class is, for example
[RemoteClass (alias="com.myco...')] public Class Base {
I am trying to communicate between an instance of flash embedded in a browser and a flash instance running in a C# WinForms app... I am getting a compile error that say:
1119 Access of possibly undefined property printOut through a reference with static type flash.net:LocalConnection
Here is the actionscript:
var feedback = ""; var receiving_lc:LocalConnection = new LocalConnection(); receiving_lc.connect("fromClient")
I'm using a library that has a function that returns an instance of some class Engine.
I'd like to tack on some interfaces to Engine, so I subclass it class InterfacedEngine extends Engine implements AwesomeInterface. but when I change the code that uses the classes from this:
var engine:Engine = generateEngine();
to this: var interfacedEngine:InterfacedEngine = generateEngine();
It gives me a runtime error (elision mine):
TypeError: Error #1034: Type Coercion failed: cannot convert ...::Engine@1bc2bf11 to ....InterfacedEngine.
I have to admit I pretty much ran away from Flash when AS2 came along and only used it for animation purposes over the last 5 years.So I'm having a major crash course in AS3 in Flash CS3 and I'm not enjoying it one bit. I'm getting maybe 10mins of finished work per hour as I try to figure out the limits and rules of AS3. Quite often it seems that AS3 simply can't do what I want it to. Anyway: Characterchecks.as is the main class and it loads a bunch of XML into four arrays. The file starts like this:[code]If I trace the value of, say, cc._Categories from the main FLA, it's empty. I'm guessing that the next line of AS in the main FLA doesn't wait for the previously called function to complete? (This may tie in to my next problem)My next step is that I want to display various things based on the data in the array. I have another class, Display.as which will hold all the functions to create the items on display. I thought it would be best for these to be a separate object. I wonder if I'm right?
So I declare an instance of Characterchecks in the main FLA and call it cc, and then run the functions to populate the arrays... Now I create an instance of Display and call it cd. How can I get functions in cd to see the values of the variables in cc? And if the main timeline can't tell that the functions aren't finished filling the arrays, how is cd supposed to know?I might be asking dumb questions, or maybe I'm doing things ***-backwards, I don't know. I'd appreciate any help, I really would. This whole thing has me at the end of my tether... being the most technically advanced person in my circle of co-workers and web design friends means I have no-one to explain why things need to be done a certain way or what the best way is.
I'm creating a little game - The player controls a character that follows the mouse. Pigs run away from the player, and the player has to get them all into a pen. To make the game a little more difficult I'm trying to add an enemy - wolves, that attempt to perform a 'hunt' method every x seconds. This method sends a reference of the wolf instance to Main (my document class) and Main then loops through the pigs on stage to see if there's any nearby. Now as far as I know this works - my problem is I'm unsure how to send the pig instance reference back to the wolf that called the hunt method, so it can then 'target' the pig, and then attempt to pounce on it.
var page1:Branch = new Branch(); page1.y = 124; addChild(page1);
I want to have the value "page1" to be dynamic, along with "Branch". Since there's a number of templates (up to 20), Branch is one of the templates. So it would be nice to use one instance creator. Also, I'm not sure how to get "page1" to be a dynamic value.
The closest to this that I've been able to find is:
star1sp.addChild(this["star"+star1Num]);
except that it doesn't fully address what I want to do. I tried adding in a bunch of "this[load_page]" and "this["page"+curpage]" to my code but had no success. I'm still on the prowl for the answer but wanted to put this out there. It's something I've tried to figure out for some time.
Is it possible to create an instance of the main MXML and use it inside the ActionScript class.public var obj:classname= new classname();When i try to call a components id through obj.textfieldID... it does not..
I am having some problems with creating different instance of the same class in as2..Pretty sure this should work in as3, so I'm not sure exactly.[code] I thought using the new keyword should create a new object independent of other instances..unless constructors are static in as2 and i just didn't know it.
I'm currently working on a little practice .fla file I've been working on. What I have now is an altered version a 'game' I made recently. I wanted to see if it was possible to create a new instance and color by having the user drag the object into the black (target) area. In short I want the user to drag one of my shapes (movieclips) and while keeping the original shape in place, move the copy version into the target and have the copy change to a different random color. Attached is a copy of my file.
Here is code I have thus far, I have tried a few options but they seem to throw off my application.
var counter:Number = 0; square.addEventListener(MouseEvent.MOUSE_DOWN, moveObject); square.addEventListener(MouseEvent.MOUSE_UP,releas eObject); circle.addEventListener(MouseEvent.MOUSE_DOWN,move Object);
Im building a shooter game where a bullet is call from a class and the enemy is also called from a class.
I cant make them collide. In order for stuff to start exploding.
I keep getting this error
Code: 1120:Access of undefined property nBullet Code: //This one creates a meteor by calling class Meteor every 2 seconds var meteorTimer:Timer=new Timer(2000);
When I try to create a new instance of a class that I created from a symbol in the library, I get a 1010 (A term is undefined and has no properties) error. I gave it a class name in it's linkage properties and it extends MovieClip. Is there anything else that I'm supposed to do? Maybe it's a syntax error when I'm creating an new instance of the class. It used just like any other class or datatype, right?
I've always wrote all my code into the .fla and now I'm trying to use classes more. I have my file loading the document class. Then the document class imports two additional classes. In my constructor of the document class I am creating a new instance of both additional classes. Here is my doc class:
[Code]...
Now inside of the other two classes I should be able to just use main_class.myFunc(); Correct? Why isn't is working? How can I interact classes? If I create a new instance to the class I want to access then I get a stack over flow error. Inside remoting class in the constructor my code; main_class = new CheckoutMain(); main_class.myFunc();
