ActionScript 3.0 :: Return Class Instance As String
Feb 1, 2009
Is there anyway to include a function or overrite something in a class that'll output a custom string when the object is called as a string?
So for example if I created a class named "myClass" and I instantiated it:
Code:
var myObject : myClass = new myClass();
When I:
Code:
TextControl.text = "blah blah, " + myObject;
myObject is getting casted as a string. Normally it would output:
"blah blah, [object myClass]"
Is there a built-in function that recast the object as string? Is there anyway for me to change that string output? I know I can just make a public toString() method in the class or something, but just wondering if there was something better.
Code: var date: Date = new Date(); trace (date)//Thu Oct 8 23:05:51 GMT-0300 2009 How i can get a String return by a Class? The default return with a normal Class is ([object Date])... Constructor can`t return values... how i can make that? :p
I have a class ErrorMessages which holds all my error messages as static constants. So I could access them like ErrorMessages.PASSWORD_INVALID or ErrorMessage.PASSWORD_TOO_SHORT. I want to know if it is possible to have separate classes that hold subset of these constants and access them like ErrorMessages.PASSWORD.INVALID or ErrorMessages.PASSWORD.TOO_SHORT, etc. This way I can more structured static structure and makes it much easier to use autocomplete. I tried few different ways and couldn't figure out if this was possible..
In as simple an example as I can think of, I have two classes: Dog and Cat. Both are subclasses of Animal, in this stupid example... I know how to create instances of both, however I don't know how to dynamically create them by name from a string. It would be something like...
I just want to ask if is it possible to call a movieclip using the String Class together with it's instance name to use gotoAndPlay() method. I know how to use the instance name and the method but then what if I want to use a string together with the instance name and the gotoAndPlay.
I'm having some troubles with the use of interface and inheritance in AS3. I've done lots of OOP in the past and what I'm trying to do seems obvious to me, but doesn't work in AS3. The question is : Is it possible to override a function that return an Object of class A, and make it return an Object of Class B which extends A ? It seems not to be possible, since I'm getting a signature error in Flash, when compiling. For example, the following set of class do not compile (the code in function definition doesn't matter):
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'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.
Quick question. I have been Googling this all morning, but it's either not there, or else written in a way that doesn't register. I am inclined to believe the latter, as this seems like it should be something completely trivial to me. I made a small Flash file using AS 3.0, and this is the first time I've really been able to stick to the OOP way of doing things and not hack together a mix of stuff from the timeline to get around not having everything work in the classes.
So I'd like to keep it that way, but one thing is eluding me: I can't call a method of an instance of another class (than the one I'm calling from) without resorting to "DocumentClass(root).instanceName.method." Intuition tells me there has to be a better way of doing this (like, without having to reference the document class every time I call another class instance's function; and CERTAINLY without having to use the word "root" - that just seems so Flash 5 to me. Does anybody have a better way of doing this that they can share?
I have a loop to create some dynamic instances.And I would like to get the instance's name when I rollover on it, however I do not know the proper syntax.
Code: var mc:Array = []; for (var i=0; i<2; i++) {
Is it possible to return the index of the first instance of a specified value within an array? Similar to:
Code: var my_string = "string"; var index = my_string.indexOf("g");
/*Outputs:
1 */
Basically, I have two arrays, each with 10 values (in slots 0-9 of the arrays). So I need to see if an array has a specified value in it, but then I have to see if the other array has a certain value in it, in the same spot as the first instance of what I search for in the first array.
I'm getting into actionscript3 and was wondering if there was a way to make an 'onclick' type function that returns an id or an instance name. For example in jQuery you can do the following, which is great for then passing the id into an array or whatever you choose.
$('.menuButton').click(function(){ var collectedID = $(this).attr('id');
Is there an equivalent to this in AS3? I'm assuming grabbing the instance name would be the goal? I haven't run across ids in Flash yet.
I found myself loading a new XML file every day and so decided to create a small class that will load the xml file and return it.The class is loading the file but when i try to return it to a new xml object in the document class it doesnt load it.I think that it's something to with the return being in a nested function but i tried a few ways and non seems to work.
[DOCUMENT CLASS] loadXML:LoadXML = new LoadXML(); myXML:XML = new XML(loadXML.loadXMLFile("gallery.xml"));[code].....
I'm trying to develop a Flex Mobile / PHP application, and I'm running into some trouble with the AsyncToken... Does it not just return a basic string?
For example... I'm wanting to just return a simple string result from my request - right now, it's going to return a basic output string from the method that's implemented. The backend part works (PHP), I've done all of that... It's this that's giving me some problems:
I need to take a string and convert it to a bytearray. such that the return is of type ByteArray. I thought writeUTFBytes(String) would work cept that returns type Void.Im not seeing anything in the docs about returning a bytearray
I have a multiline textfield were users can type text. I split the text in words so I can compair them to see if they are a certain word. Some words don't pass the if statment even if they are the same (at leased to me). I found out it's because these words have a hard return in front of them. I need to remove the hard return, but I can't find out how. I tried to split the string on " ", but that doesn't work.
I want to search an array to see if it contains a specific string, and then get the index of the result. For example, if I had: array[0] = "dogs"; array[1] = "cats"; array[2] = "oranges"; I want to be able to search for "oran" and get 2 back.
I'm trying to figure out how to set a MovieClip return value by passing a string argument and using that string to define the child of a given movieclip. I'm doing something wrong because I keep getting null traced instead of home_mc.[code]
Presently I have created 2 dynamic buttons. When I click on them I want them to return the value of a string into a dynamic text field. I am doing this using only as.....no timeline. Right now they are returning the value of sqaureMC and circleMC. How to I get them to add value of string?
i'm trying to write a function but with no luck. seems my brain capacity's limited the function will take two parameters: a term to search for, and a string to be searched. what i want the function to return is a new string containing the term (the parameter) along with a couple of words before and after it (as found in the search string).
var bytes:ByteArray = new ByteArray; bytes.writeInt(0);
trace(bytes.length); // prints 4 trace(bytes.toString().length); // prints 4
When I run the above code the output suggests that every character in the string returned by toString contains one byte from the ByteArray. This is of course great if you want to display the content of the ByteArray, but not so great if you want to send its content encoded in a string and the size of the string matters.Is it possible to get a string from the ByteArray where every character in the string contains two bytes from the ByteArray?
I've tried a couple different hash classes for as3. Right now I'm using the com.adobe.crypto package from [URL] What I need is a way to return the raw data as opposed the the hex converted string, similar the the way python's hashlib functions have a digest() and hexdigest() method. In python the code would be
... single = sha1('some text').digest() double = sha1(single).hexdigest() ...
In as3 using the following code returns a different hash because the return from the first hash is converted to hex before being hashed again.
I have a dropdown box that is used to select a Category. I need the Flash Application to send the value of Category plus the search string in my textbox to my Access query and return results for each product meeting selection criteria. The Flash Application is calling an ASP.NET web service which in turn queries an MS Access database.
To start, how do I define the category ID and search value in my Actionscript 3 code?I've placed a series of 12 or so objects that will be populated with the product description, title and price. How do I setup each field to be dynamic text associated with the title description and price from my query results? If there are more than 12 products returned by the query, how do I add an additional page of objects to house more than 12 query results?
