Actionscript 3 :: Library Symbol Extend Another Library Symbol / Assuming Each Are Linked To Class?
Dec 9, 2010
Library symbol "Card" is linked to class "Card" which extends "MovieClip". Library symbol "Card" contains a card background image.Library symbol "Ace" is linked to class "Ace", which extends class "Card". Library symbol "Ace" contains a TextField with a big letter "A".So we have Ace extends Card which extends MovieClip. Ace therefore extends MovieClip, but does not DIRECTLY extend MovieClip.When I drop an instance of Ace on the stage and compile the clip, all that shows up is the big letter A. However, I expected the background image from Card to be included, since Ace extends Card, and the Card symbol contains the background.It seems like Flash ignores symbol content unless it belongs to the top-level class being instantiated.I think it's LAME that one symbol can't extend another. The IDE could easily draw Card as a non-editable background while I'm editing Ace which extends it, and it should instantiate Card's content and then Ace's content when an Ace is instantiated.
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Jun 7, 2009
Running Flash CS3, I've reviewed the lynda.com tutorial on building particle systems in ActionScript 3.0 to try and build some shooting sparks in an animation.I'm getting stuck at what I think is a really elementary point, but I can't seem to get past it.
Basically, all I'm trying to do at this point is create a class called Particle (which I will teach to do things that particles do a little later) link it to a MovieClip on the stage in my .fla file and use the particle's update function to move it across the stage in a manner defined in the instance (so I can later give different movement properties to each AS generated instance of the MC). I know there are easier ways to accomplish my base task without loading an external package, but this seems so strightforward that I must be doing something very simple wrong I just can't see so I thought I'd post the code here and see what I'm missing.
I start with a file called Particle.as in the same folder as my Spark Test.fla file.
In Particle.as I have the following code:
package{ import flash.display.*; public class Particle extends MovieClip { public xVelocity:Number; public yVelocity:Number; public function Particle() { xVelocity = 0; yVelocity = 0; } public function update():void { this.x += xVelocity; this.y += yVelocity; } }}
So I'm declaring that all particles are built with no motion, but if they are explicitly granted an x or y velocity, they will move by that much when the instance's update function is called in the timeline.
Then in my Spark Test.fla file, I have a small shape in a MovieClip called Spark. In the Linkage properties of Spark I have chosen to Export for ActionScript and Export in FIrst Frame. The class is called Spark and the Base class is Particle. For testing purposes I've dropped an instance on the stage and called it spark. Then in the actions layer in the first frame (the timeline is just the spark layer and the actions layer, one frame long each with no "stop();" so it should run forever) I have included the following code:
spark.xVelocity = 5;spark.yVelocity = -1;
function updateSpark(event:Event):void{ spark.update();}
addEventListener(Event.ENTER_FRAME, updateSpark);
What it looks like this should do is on each ENTER_FRAME Flash should call updateSpark which is a function that runs the update() event for the spark instance which is a instance of a movieclip that has an update event which moves x and y position by their relative velocity variables. This all seems pretty straightforward to me, but when I ctrl-Enter to test the movie, I get the following 3 compiler errors:
Particle.as Line 1: 5000: The class 'Particle' must subclass 'flash.display.MovieClip' since it is linked to a library symbol of that type.
Particle.as Line 7: 1071: Syntax error: expected a definition keyword (such as function) after attribute public, not xVelocity.
Particle.as Line 7: 1084: Syntax error: expecting rightbrace before semicolon.
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Nov 15, 2011
I am having an issue with compiling a .swf. I get the following error on what seems to be related to the images. There is about 40 that are all very similar the the error code listed below:
5000: The class 'com.decalmywall.Emb_EMB_BORDER' must subclass 'flash.display.BitmapData' since it is linked to a library symbol of that type.
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Sep 5, 2011
Here is the title error with complete paths:
\psfHomeDropboxDevelopmentRepositoriesGITi-ccPowerhouseNotesmasterflashliblibnoteNotesCore.as:1: 5000: The class 'lib.libnote.NotesCore' must subclass 'flash.display.MovieClip' since it is linked to a library symbol of that type.
Firstly, what I have tried and what I am using:
[Code]...
I am mainly from a Java background, so perhaps I am misunderstanding an ActionScript concept; if anybody could point me in the right direction I would be extremely grateful!
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Dec 25, 2004
what i want to do is, when certain button is clicked, replace a certain symbol(button) by another symbol(movieclip) stored in the library. i try things like loadmovie("","") to replace the symbol from a external jpg, but some how it does not align even both images are exact dimension. can i replace an image straight from the library?
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Jun 15, 2011
I'm having an issue using a class I've created as the base class for library symbols: I've created a class AvSkin which will act as the display for an instance of AvChild. It looks like this:
package avian.environment.skins
{
import flash.display.DisplayObject;[code]....
Is there a way around this? I don't want to do either of the following:
Make AvSkin extend MovieClip.
Create a class for my library symbol that extends AvSkin.
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Nov 9, 2009
I have a movieclip library symbol exported for ActionScript with name McFloor and identifier McFloor and I'd like to access it from OneChart class.
[Code]...
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Jun 12, 2009
Can any answer the following questions and maybe point me to a "for dummies" tutorial on 'Classes'. I have the books but they have seemed to disappoint me. Unfortunately I can never ask "why" when reading a book.
1) Does a Class file need to be attached to a library symbol?
2) How do you know what to import?I know this sounds funny but should you always import flash.display.MovieClip? I just want to create a line using a class to begin with and call it from a flash swf with two parameters (start and end).Wouldn't it only need to be a import flash.display.Graphics
3) What is "Base class is final."? Anybody had this error before?[code]
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Sep 6, 2009
i have a fla document with a symbol in the library (which i set Linkage ID). i have also two classes : for example parent and child that parent class in a loop places some child copy on the stage.
how could i send my symbol in the library to the child class (from parent class) properly?
Code:
//in fla document
var myParent:parent = new parent(mysymbol);
//create 7 child
myParent.createchild(7);
i need to have NEW symbol copy in for each child instance.
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Oct 31, 2008
i try to migrate from as2 to as3 and i have one problem When i attachMovie from library (addChild in as3) and i add custom property its work fine.Here is ex.
Code:
var i:int;
for (i=0; i<5; i++)[code]....
when i attach to that symbol custom class in the library.i got the error: #1056:Cannot create property...
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Jul 5, 2011
how do i get more than one symbol linked to my class in my SoundClass.as file?
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Jun 8, 2010
I duplicated a "Contact" button, movie clip symbol.Trying to edit the text "contact" in the new button but the text tied to the old button keeps getting changed.I duplicated the text symbol that is tied to original "Contact" button.Tried changing the new button again but the link to the old button is the one being changed.I can't seem to find where to unlink the text symbol attached to the original button and then add the new text symbols the duplicated button.
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May 31, 2011
I have 2 SWF, one of them (let's call it Resources.swf), that contains several symbols (most of them MovieClips) on its library, but, none of them are added into the stage ( the timeline contains only one empty frame),and then, the other swf (Main.swf), where I need to import some of the symbols from the other SWF.I have been looking around, and searching, but all the info that I saw, and tried, imports the symbols from the stage/timeline using things like:[code]If not,do I have modify my Resources.swf to work this out or do I have other alternatives?
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Nov 26, 2010
I have one swf (swf A) which loads swf B inside itself.
is it possible from swf B (when it loads) to get to the library symbol inside swf A?
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Oct 20, 2005
How I can create a MovieClip Symbol and put it into the Library using ActionScript?
I want to do this so I can dynamically create content for a ScrollPane.
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Feb 10, 2010
(Spoiler alert: It's not an issue of my package statement not reflecting the location of my class file.) When I have a class linked to a MovieClip in my library and that class takes an argument in its constructor method. That class will compile properly ONLY when it's located in my top-level directory (same dir as the .fla and Document.as files). If I move that class to a deeper directory, say com.place, the compiler will generate error "1136: Incorrect number of arguments. Expected 0.
[Code]....
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Apr 1, 2009
I am trying to load a movieclip from the library onto my stage. But the name of the movieclip is read in from a user-entered text field. Typically, to load a movieclip from the library named, Bee, I would do the following:
var mc:MovieClip = new Bee; // this works.
But the name of my symbol is in a TextField. The following do not work:
// Attempt #1:
var mc:MovieClip = new userfield_txt.text; // No Good
// Attempt #2:
var str:String = userfield_txt.text;
[code]....
I realize the new operator requires a Class data-type, so how do I get the value stored in a String or TextField into a Class type?
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Dec 16, 2008
I'm new to Flash, am working on my first Flash Project. I've been trying to move a particular symbol from my library onto the stage and when I do, I'm getting a "Resolve Library Conflict" error that says "One or more library items already exist in the document." and it gives me the choice to replace the existing items or not. It only appears to be happening with 1 or 2 particular symbols, not all of them. I did use this same symbol (as a graphic bullet) earlier in the project with no problem, but now it won't let me use it again. However, I have other symbols in the library that I have used multiple times throughout the project and I don't get this error pop-up when moving them into new frames. I don't see any mention of this in my Flash book, why I'm getting this and how to resolve it?
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Jul 5, 2010
When you import a PNG into the library, Flash creates a symbol as well. It doesn't do this for JPGs, so I'm wondering if there's a setting that I can change that. I don't want it to create a new symbol. If it can't be changed, can anyone tell me why it does it for PNG and not JPG?
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Feb 12, 2011
I would like to know if there is a way to find out where is a symbol used into a Flash document.If Symbol A is used by two other symbols (say B and C) is there a way to query the enviroment to know that A is used by B and C?
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Sep 1, 2009
1. Is the video brought it to the Library them placed as an movie symbol?
2. I know you can knockout a background with Chroma-Key, but what format does flash use to acknowledge the transparency.
3. Is there a way to cut out the figures from a video in flash?
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Mar 9, 2010
Is there a tool that will convert an exported Flash library element (ie Component/MovieClip) to an AS3 class with Flex syntax, e[Embed(source="graphic.png")]
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May 26, 2010
In the Flash authoring environment I can edit a library symbol and all on-stage instances based upon it reflect the changes. How can I do the same thing in ActionScript? There seems to be no way to address a library symbol.
For example:Inside Flash CS3, I have created a Square.swf file that has 100 instances of the library symbol Square.
Now, Square.swf is loaded into another file BlueSquare.swf and I want to change the Square symbol into a blue square so that all instances of Square become blue.How do I do this using Actionscript?
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Jun 29, 2010
I am embedding a flash file in my flex file and then trying to add it to the stage. IU try addChild to a canvas element and to a container element, but it keeps giving me the error, the symbol "myBtn" is cannot be converted to a IUIcomponent.
I understand that I need to place everything inside some sort of component, but what is the proper way to do this in flex?
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Aug 16, 2010
I have a button symbol in the library that has a linkage. When I run my movie, everything works fine. If I go into the properties of that button turn off linkage, then immediately turn it back on with the same settings, then run the movie. I get;
1046: Type was not found or was not a compile-time constant: Phase02_btn.
1180: Call to a possibly undefined method Phase02_btn.
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Apr 18, 2011
I have a problem and I'm not really sure where to start. What I have is an animation of a character in the library. The Character is made up of a few movieclips for the body that move about and one for the face that holds a stock photo.I have a camera section that grabs an image of the users face and now what I need to do is swap the stock face photo for the one taken in the last scene.
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Oct 4, 2009
I have a jpg tile that I made into a symbol. What I'd like to do is create a rectangle (this part I know) and fill it not with a color but with the tile symbol from my library repeating it on both x and y (like background-repeat in css).
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Feb 20, 2011
I currently need the following for some of my AS code to function:[code]I have 3 MovieClip symbols which each have an "actions" layer on their timeline so I can add in some functionality.Do I have to import the above into all 3 of my MovieClips, or can I import the above on the main timeline and access it from inside my MovieClip symbols?Also is there a downside to importing the above into each MovieClip or no? This is my first time using functions which needed me to import things, and I just want to make sure I have the correct information on the proper way to import.
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Aug 13, 2007
My situation is thus: I have an XML file with entries, each of which contains a handle (linkage ID) to the movie clip that represents that entry onstage. So I dynamically load these symbols in from the library accordingly. Only problem is, I need to be able to count how many of those entries are valid, that is, how many of the XML entries have handles that actually do correctly correspond to the names of the symbols in the library. So right now in order to count the entries I am using the value of how many entries were in the XML file but this is wrong, I need a value of how many entries in the XML correspond correctly to a library symbol.
As it stands now, if all the names in the XML file match those in the .fla, all is good. Otherwise, issues. The thing is, I want this setup to be robust so the program takes responsibility and resolves issues if there are errors in the XML. Now, the only way I can see to fixing this simply, is if there is a way to check if a symbol exists in the library -- without actually trying to load it. That way I can count just those symbols from the XML file that also do exist in the library.
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May 25, 2011
Whenever I duplicate a library symbol, flash CS5.5 crashes and needs to be restarted.
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