ActionScript 3.0 :: Instancing Classes With String Names?
Feb 17, 2012
There's a part of as3 that i've not quite learned yet. maybe it's not good practice to do, but i'm trying to instance classes without having to specifically write their names in the code.In essence, i want to have a string containing the name of a class (in this case, "Pistol") and i want to be able to use that variable, to create an instance of that class. Presumably using new. I'm not exactly how to go about resolving a string into a classname though.
I have the following code on the main timeline. I have soundLoad_mc assigned to the SoundChgUrl class.soundLoad_mc.mp3URL = "climbing.mp3";soundLoad_mc.swfName = "journey.swf";The code below is from SoundChgUrl. The import to mp3URL works. The one to swfName does not - it throws "1119: Access of possibly undefined property swfName through a reference with static type classes:SoundChgUrl." This doesn't make sense to me.
I have a button in a movieclip.. in a movieclip.. in a movieclip, etc.. and when I roll over it, nothing happens.. This has also been happening with a few of my other buttons.. Does anyone know why this could be happening and how it can be fixed?
I have a error TypeError: Error #1007: Instantiation attempted on a non-constructor but i can't figure out what i am doing wrong. I have a class that declares a static closure that instances the same class.
anyone actually successfully implement 3D object instancing with papervision 3d?and does it actually perform good enough to be used to instancing many copies of a single model (tress for example)?so far I failed to correctly display the instances and I doubt the performance benefit of doing this as papervision 3d is using software render.
I have a bit of text "this is the text want I want to do is replace the text, I have just added another is for good measure".This is stored as a standard string but I want to turn this into html and add css classes like, in this example wrapping around the word "is"; "this is the text want I want to do is replace the text, I have just added another is for good measure"
I have a movie player that works fine when i hard-code the url value in the video function, but when i try to pass that url/file path from an external file, the video doesn't load. I suspect that there is something i'm doing wrong with the quotes. What am i doing wrong?
We've got an Illustrator file with something over 1,000 layers. We're trying to import this into Flash and keep the layer names intact, such that they become the names of the movie clips that are imported for each layer and can be used programmatically. (It is a diagram and arrows, boxes, etc all have callout names that will eventually allow them to link to a database.)As near as I can tell, the Import dialog will NOT pass this info across between the two parts of the dialog.
I started a thread about a reference to a symbol House, in the output window, which was: House_1. A lot of people said some useful things about that. All day I've been thinking about it, and I came to the conclusion that I don't understand things, at a very basic level.
Consider:I make a movieclip which I give the Symbol name Drawer. (I don't export it for AcitonScript.)On the stage I manually place two instances of this Symbol. The first one I give the Instance Name drawer (in the properties panel). The second one I leave nameless.Now if I trace the names of both these clips, by
Now I know that the so-called "instance name" which I gave in the Properties Panel (drawer) is, in reality, a variable name which Flash gives my first instance behind the scenes. And instance2 is a name that Flash gives my second instance. What exactly the nature of that name is, I do not know.My point is: both names (drawer and instance2) are the .name property of these movieclips. Otherwise I could not have traced them through asking for the .name property, in the above. Yet only the first of these two can be manipulated:
drawer.x can be set; instance2.x can (as we know) not be set.
But...why? What is the real difference between these two kinds of names? How can they both be the .name property of their underlying movieclip, yet be of such a different nature? What IS the nature of the instance2 name? If it's a String, how come the .name property of one movieclip can be a variable name, while the .name property of another (but identical) movieclip is a String?
I've searched every bit of web page on the net I could find. But it looks as if nobody addresses this issue. We all just work with it - but it makes no bloody sense. A name property = a name property, you'd think. Whether Flash set it or I set it should not make a difference. The x property of a clip, for example, does not change in nature according to who set it - me or Flash.So, again, just to emphasize the problem: how can a property (the name property) of a movieclip change in NATURE depending on who set it? After it's been set, shouldn't the name property of a clip be of exactly the same nature as the name property of another clip?
It seems as thought whenever you try to treat a class as a String (such as putting it inside of trace() or similar), if that class has a "toString" function, it will get the string from whatever that function returns, and will otherwise return something along the lines of "[object MyClass]".
Are there any more of these special functions?
Also, a bit of a far stretch, is there any way to do this with custom classes, for instance, your class may be a PolarPoint, but people can call "toLinearPoint()" and get an instance of a class which is a LinarPoint but with the same data.
Now, this is simple enough to do manually, but let's say you pass in the PolarPoint in a function where a LinearPoint is expected. Is it possible to make Flash automatically run the toLinearPoint() function if found? Similar to how Flash will run toString automatically if passed in as a String somewhere.
That second part is probably more of a hassle than it is worth though, but it would be REALLY handy if you are unable to extend two classes at once, but want your class to be able to be treated as both.
The examples I'll use don't do anything - they're classes without ANY members - no variables, methods, anything.
Let's say I extends Sprite and call it MySprite.
I save it in test.core
[code]...
Now I create another custom class called MyWindow that extends MySprite.
I save it in test.windows
[code]...
Then I create another class that extends MyWindows (the example I'll use is a document class - but that doesn't matter - I've tested using an instance too).
[code]...
Notice that I'm not even trying to instantiate the helper classes - just having them there throws the error.
If there is only a single helper class, everything runs fine.
Also note that - as far as I can tell - this only happens when extending one class from another package, then extending that class with more than one helper object.I'm pretty sure there's no namespace bumps or typographical errors, as this is a very pared-down version of the original application.
EDIT: seems the problem exists even without the crossing packages - even extending MySprite in the document class with multiple internal classes generates this error.
I am creating a library in AS3. Inside the library I make use of a bunch of classes/packages that need not be exposed to the end user of my lib. I want to only expose one of these classes.
I guess my questions are:
1) How are libraries commonly distributed in AS3?
2) Is there a .jar equivalent in AS3 that developers can include, but will only have access/knowledge of the classes I've declared as public?
I have an actionscript project which uses visual symbols from an SWC. I have a CheckoutButton which has the following class associated with it (compiled into the SWC in Flash CS3).
I'm trying to import a class from a class that is located in another folder. How do you move up a directory? Using./ or ../ doesn't seem to work. Essentially I want to access a TweenLite Class but not from the document class. My class is at com/myName and the class I want to access is at com/TweenLite. import ../TweenLite doesn't work... I realize I could just copy and paste the entire Tweenlite folder again, but there's got to be a less duplicative way of doing this..
inheritance and building classes from other classes.
I have 3 classes: gfxRoomText - changeable colour gfxRomInter - changeable colour - interactive gfxRoomImg - interactive - only image / no colour
The first two incorporate the same text field and functions to change colour. The second and third incorporate another class to interactive with. What is the best way of creating these classes using inheritance and how?
I have to use many custom classes for a project, each class includes lots of elements(methods,properties) and I generally forget their names when coding. Is there any editor which I can enumarate the elements of my classes after pressing "." like Flash's built in classes?
I am new to classes and I am just starting to follow tutorials on how to assign classes and sub classes and I am wondering when you assign a base class or class to an object(Symbol e.g movieclip) through the properties, are all instances on the stage no matter how many and what they are named influenced and is the Stage/main timeline always the parent? and just one more question, is the parents objects display list all the movieclips that are used on the stage or all the instances on the stage?
I am doing an Actionscript 3.0 project which involves introspection. I am wondering if there is a way to get all the classes within a given package structure.
In Actionscript and Adobe Flex, I'm using a pattern and regexp (with the global flag) with the string.match method and it works how I'd like except when the match returns multiple occurrences of the same word in the text. In that case, all the matches for that word point only to the index for the first occurrence of that word. For example, if the text is "cat dog cat cat cow" and the pattern is a search for cat*, the match method returns an array of three occurrences of "cat", however, they all point to only the index of the first occurrence of cat when i use indexOf on a loop through the array. I'm assuming this is just how the string.match method is. I want to find the specific indices of every occurrence of a match, even if it is of a word that was already previously matched.
But I keep getting an "Error #2030: End of file was encountered." This is (probably) because the class I'm serializing is too big for the "String" object type in AS3. Is there a limitless object for storing an array of characters (or better yet binary), or am I going to have to make my own class? (like one with an array of strings)
I am trying to include double quotes in a string but logic says it would just close the string. I know in html you would use something like ". In flash...I havent the slightest.Anyone know how to go about this?
I have a String variable in my flex (flash builder 4) application containing CSV data. I need to allow the user to download this data to a local file. For example, giving them a "csv" button to click and it might present them with a save file dialog (and I would be sending the contents of my string variable).Is this possible / how ?I am using the ResuableFX component for the datagrid to csv. This the code I ended up with that works to save the string to a text file for the user (in a web browser):
var dg2CSV:DataGrid2CSV = new DataGrid2CSV(); dg2CSV.includeHeader=true; dg2CSV.target=adgEncounters;
I'm using a pattern and regexp (with the global flag) with the string.match method and it works how I'd like except when the match returns multiple occurrences of the same word in the text. In that case, all the matches for that word point only to the index for the first occurrence of that word. For example, if the text is "cat dog cat cat cow" and the pattern is a search for cat*, the match method returns an array of three occurrences of "cat", however, they all point to only the index of the first occurrence of cat when i use indexOf on a loop through the array. I'm assuming this is just how the string.match method is (although please let me know if i'm doing something wrong or missing something!). I want to find the specific indices of every occurrence of a match, even if it is of a word that was already previously matched.
