Re: [Flashcoders] instancing my own components (still new to AS3)
Yes, as allandt suggests, you should provide a default value for
constructor param
Unfortunately, it's not the only problem with components (at least in CS3)
For me, the worst one is about [Inspectable] parameters (and their setters).
As described here
http://www.bit-101.com/blog/?p=1181
setters are called lo-o-ong AFTER constructor
And, even if I set my init() as listener for ADDED_TO_STAGE event... setters
are not called before it :-(
Any advice to determine the exact time setters are called?
On 1/27/09, allandt bik-elliott (thefieldcomic.com) alla...@gmail.com
wrote:
you can put the default value into the parameters in the constructor so:
package {
import flash.display.MovieClip;
import flash.text.*;
public class MyButton extends MovieClip{
public var buttonLabel:String;
public function MyButton (buttonLabel:String = GO){
this.buttonLabel = buttonLabel;
btnLabel.text = buttonLabel;
}
}
}
a
On Tue, Jan 27, 2009 at 2:26 PM, Mendelsohn, Michael
michael.mendels...@fmglobal.com wrote:
Hi list...
What exactly is the AS3 equivalent of making a simple component,
creating a component definition, and attachMovie with the {} holding the
params?
I can't get this to work:
package {
import flash.display.MovieClip;
import flash.text.*;
public class MyButton extends MovieClip{
public var buttonLabel:String;
public function MyButton (buttonLabel:String){
this.buttonLabel = buttonLabel;
btnLabel.text = buttonLabel;
}
}
}
The component definition has one parameter:
Var: buttonLabel, default value:Go, type:list
I'm trying to instance a movie clip that contains instances of this
variable. I get various compiler errors when that parent clip is on the
stage.
Argument Error 1063 (Argument Count Mismatch) expected 1, got 0, when
instancing a movieclip that contains these components. But in parent
movie clip, I am setting the params on the stage.
Thanks,
- Michael M.
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Best regards,
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http://GOusable.com
Flash components development.
Usability services.
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Re: [Flashcoders] inserting an MC in a TextField (and speaking to it)
It did work, actually, in terms of inserting it into the TextField, i guess because the class name effectively functions as the Library identifier. However, your tip regarding ID did the trick for communicating with it, since I still couldnt modify it, the way I had it. :) thanks, .matt On Wed, Jan 28, 2009 at 12:31 AM, Keith Reinfeld keithreinf...@comcast.net wrote: Matt, I s'pose I focused too much on the second part of your question in my previous message. So anyway, if this src='com.myclasses.DropCap' actually works then more power to ya! If not: ActionScript 3.0 Language and Components Reference: src: Specifies the URL to an image or SWF file, or the linkage identifier for a movie clip symbol in the library. So, if you have a movieclip in your library with a linkage identifier of 'DropCap' (associated with a class 'com.myclasses.DropCap') you would use: var tString:String = img src='DropCap' id=DC0 style='padding:0px;margin:0px'/Lorem ipsom yadda yadda...; myTextField.htmlText = tString; myTextField.DC0.txt.text = Z; Regards, -Keith http://keithreinfeld.home.comcast.net ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
Re: [Flashcoders] instancing my own components (still new to AS3)
could you put your init() method call in a setter?
On Wed, Jan 28, 2009 at 10:27 AM, Gregory N greg.gousa...@gmail.com wrote:
Yes, as allandt suggests, you should provide a default value for
constructor param
Unfortunately, it's not the only problem with components (at least in CS3)
For me, the worst one is about [Inspectable] parameters (and their
setters).
As described here
http://www.bit-101.com/blog/?p=1181
setters are called lo-o-ong AFTER constructor
And, even if I set my init() as listener for ADDED_TO_STAGE event...
setters
are not called before it :-(
Any advice to determine the exact time setters are called?
On 1/27/09, allandt bik-elliott (thefieldcomic.com) alla...@gmail.com
wrote:
you can put the default value into the parameters in the constructor so:
package {
import flash.display.MovieClip;
import flash.text.*;
public class MyButton extends MovieClip{
public var buttonLabel:String;
public function MyButton (buttonLabel:String = GO){
this.buttonLabel = buttonLabel;
btnLabel.text = buttonLabel;
}
}
}
a
On Tue, Jan 27, 2009 at 2:26 PM, Mendelsohn, Michael
michael.mendels...@fmglobal.com wrote:
Hi list...
What exactly is the AS3 equivalent of making a simple component,
creating a component definition, and attachMovie with the {} holding
the
params?
I can't get this to work:
package {
import flash.display.MovieClip;
import flash.text.*;
public class MyButton extends MovieClip{
public var buttonLabel:String;
public function MyButton (buttonLabel:String){
this.buttonLabel = buttonLabel;
btnLabel.text = buttonLabel;
}
}
}
The component definition has one parameter:
Var: buttonLabel, default value:Go, type:list
I'm trying to instance a movie clip that contains instances of this
variable. I get various compiler errors when that parent clip is on
the
stage.
Argument Error 1063 (Argument Count Mismatch) expected 1, got 0, when
instancing a movieclip that contains these components. But in parent
movie clip, I am setting the params on the stage.
Thanks,
- Michael M.
___
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--
--
Best regards,
GregoryN
http://GOusable.com
Flash components development.
Usability services.
___
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http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
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RE: [Flashcoders] inserting an MC in a TextField (and speaking to it)
Interesting, I'll have to give it a whirl. Thanks. Regards, -Keith http://keithreinfeld.home.comcast.net -Original Message- From: flashcoders-boun...@chattyfig.figleaf.com [mailto:flashcoders- boun...@chattyfig.figleaf.com] On Behalf Of Matt S. Sent: Wednesday, January 28, 2009 6:41 AM To: Flash Coders List Subject: Re: [Flashcoders] inserting an MC in a TextField (and speaking to it) It did work, actually, in terms of inserting it into the TextField, i guess because the class name effectively functions as the Library identifier. However, your tip regarding ID did the trick for communicating with it, since I still couldnt modify it, the way I had it. :) thanks, .matt ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
Re: [Flashcoders] Garbage Collection difficulty
Ah yes... I knew I read it somewhere... It's in that Grant Skinner article.
*Deferred GC and Indeterminacy*
A *very* important thing to understand about the Garbage Collector in FP9 is
that it's operations are deferred. Your objects will not be removed
immediately when all active references are deleted, instead they will be
removed at some indeterminate time in the future (from a developer
standpoint). The GC uses a set of heuristics that look at RAM allocation and
the size of the memory stack (among other things) to determine when to run.
As a developer, you must accept that fact that you will have no way of
knowing when (or even if) your inactive objects will get deallocated. You
must also be aware that inactive objects will continue to execute
indefinitely (until the GC deallocates it), so code will keep running (ex.
enterFrames), sounds will keep playing, loads will keep happening, events
will keep firing, etc.
It's very important to remember that you have no control over when your
objects will be deallocated, so you must make them as inert as possible when
you are finished with them. Strategies to manage this will be the focus for
a future article.
On Wed, Jan 28, 2009 at 8:31 AM, Nate Beck n...@tldstudio.com wrote:
It was my understanding that Garbage Collection doesn't always occur right
away. When you have orphaned objects sitting on the heap, they are *
eligible* for garbage collection. That doesn't mean they will be removed
from memory right away. Especially if you're testing for JUST that to
happen. Usually GC occurs when more memory is needed.
Someone else could probably speak to this topic much more intelligently
than me.. but that was my understanding of how GC in general works.
Cheers
On Tue, Jan 27, 2009 at 6:04 AM, Sander Schuurman
sander.schuur...@oswaldandruby.com wrote:
Thnx for the links... tried some, but still with no success... I now have
the following:
public class Image extends MovieClip
{
private var _thumbLoader:Loader;
private var _largeLoader:Loader;
private var _thumb:Bitmap;
private var _large:Bitmap;
public function loadThumb() :void
{
_thumbLoader = new Loader();
_thumbLoader.contentLoaderInfo.addEventListener(Event.COMPLETE,
thumbLoaded, false, 0, true);
_thumbLoader.contentLoaderInfo.addEventListener(IOErrorEvent.IO_ERROR,
errorOccured, false, 0, true);
_thumbLoader.load(new URLRequest(_tu));
}
private function thumbLoaded( e :Event ) :void
{
_thumb = Bitmap(e.currentTarget.content);
_thumb.smoothing = true;
addChild(_thumb);
_thumbLoader.contentLoaderInfo.removeEventListener(Event.COMPLETE,
thumbLoaded);
_thumbLoader.contentLoaderInfo.removeEventListener(IOErrorEvent.IO_ERROR,
errorOccured);
_thumbLoader = null;
dispatchEvent(new Event(Image.IMG_LOADED));
}
public function loadLarge() :void
{
_largeLoader = new Loader();
_largeLoader.contentLoaderInfo.addEventListener(Event.COMPLETE,
largeLoaded, false, 0, true);
_largeLoader.contentLoaderInfo.addEventListener(IOErrorEvent.IO_ERROR,
errorOccured, false, 0, true);
_largeLoader.load(new URLRequest(_lu));
}
private function largeLoaded( e :Event ) :void
{
_large = e.currentTarget.content;
_large.smoothing = true;
addChild(_large);
_largeLoader.contentLoaderInfo.removeEventListener(Event.COMPLETE,
largeLoaded);
_largeLoader.contentLoaderInfo.removeEventListener(IOErrorEvent.IO_ERROR,
errorOccured);
//_largeLoader.content.dispose();
_largeLoader = null;
dispatchEvent(new Event(Image.IMG_LOADED));
}
public function disposeLarge() :void
{
if (_large)
{
removeChild(_large);
_large.bitmapData.dispose();
_large = null;
}
}
public function dispose() :void
{
disposeLarge();
removeChild(_thumb);
_thumb.bitmapData.dispose();
_thumb = null
}
}
Anyone some tips? The large bitmap stays in memory...
-Original Message-
From: flashcoders-boun...@chattyfig.figleaf.com [mailto:
flashcoders-boun...@chattyfig.figleaf.com] On Behalf Of Glen Pike
Sent: Wednesday, 21 January 2009 21:18
To: Flash Coders List
Subject: Re: [Flashcoders] Garbage Collection difficulty
Hi,
I think if you use it locally, you still have to dispose of it:
http://www.bartclaessens.com/tag/memory-management/
http://labs.bigspaceship.com/2007/02/28/flash-performance-tips-part-ii/
http://www.gskinner.com/blog/archives/2006/06/as3_resource_ma.html
Search for dispose in some of these - also, one of the comments in
Grant's article mentions testing in the IDE vs testing in the browser
gives different results for loaded images.
HTH
Glen
Sander Schuurman wrote:
That's a local variable right? Doesn't it happen automatic?
I must concentrate on the _large Sprite, isn't it?
-Original
Re: [Flashcoders] Garbage Collection difficulty
It was my understanding that Garbage Collection doesn't always occur right
away. When you have orphaned objects sitting on the heap, they are *
eligible* for garbage collection. That doesn't mean they will be removed
from memory right away. Especially if you're testing for JUST that to
happen. Usually GC occurs when more memory is needed.
Someone else could probably speak to this topic much more intelligently than
me.. but that was my understanding of how GC in general works.
Cheers
On Tue, Jan 27, 2009 at 6:04 AM, Sander Schuurman
sander.schuur...@oswaldandruby.com wrote:
Thnx for the links... tried some, but still with no success... I now have
the following:
public class Image extends MovieClip
{
private var _thumbLoader:Loader;
private var _largeLoader:Loader;
private var _thumb:Bitmap;
private var _large:Bitmap;
public function loadThumb() :void
{
_thumbLoader = new Loader();
_thumbLoader.contentLoaderInfo.addEventListener(Event.COMPLETE,
thumbLoaded, false, 0, true);
_thumbLoader.contentLoaderInfo.addEventListener(IOErrorEvent.IO_ERROR,
errorOccured, false, 0, true);
_thumbLoader.load(new URLRequest(_tu));
}
private function thumbLoaded( e :Event ) :void
{
_thumb = Bitmap(e.currentTarget.content);
_thumb.smoothing = true;
addChild(_thumb);
_thumbLoader.contentLoaderInfo.removeEventListener(Event.COMPLETE,
thumbLoaded);
_thumbLoader.contentLoaderInfo.removeEventListener(IOErrorEvent.IO_ERROR,
errorOccured);
_thumbLoader = null;
dispatchEvent(new Event(Image.IMG_LOADED));
}
public function loadLarge() :void
{
_largeLoader = new Loader();
_largeLoader.contentLoaderInfo.addEventListener(Event.COMPLETE,
largeLoaded, false, 0, true);
_largeLoader.contentLoaderInfo.addEventListener(IOErrorEvent.IO_ERROR,
errorOccured, false, 0, true);
_largeLoader.load(new URLRequest(_lu));
}
private function largeLoaded( e :Event ) :void
{
_large = e.currentTarget.content;
_large.smoothing = true;
addChild(_large);
_largeLoader.contentLoaderInfo.removeEventListener(Event.COMPLETE,
largeLoaded);
_largeLoader.contentLoaderInfo.removeEventListener(IOErrorEvent.IO_ERROR,
errorOccured);
//_largeLoader.content.dispose();
_largeLoader = null;
dispatchEvent(new Event(Image.IMG_LOADED));
}
public function disposeLarge() :void
{
if (_large)
{
removeChild(_large);
_large.bitmapData.dispose();
_large = null;
}
}
public function dispose() :void
{
disposeLarge();
removeChild(_thumb);
_thumb.bitmapData.dispose();
_thumb = null
}
}
Anyone some tips? The large bitmap stays in memory...
-Original Message-
From: flashcoders-boun...@chattyfig.figleaf.com [mailto:
flashcoders-boun...@chattyfig.figleaf.com] On Behalf Of Glen Pike
Sent: Wednesday, 21 January 2009 21:18
To: Flash Coders List
Subject: Re: [Flashcoders] Garbage Collection difficulty
Hi,
I think if you use it locally, you still have to dispose of it:
http://www.bartclaessens.com/tag/memory-management/
http://labs.bigspaceship.com/2007/02/28/flash-performance-tips-part-ii/
http://www.gskinner.com/blog/archives/2006/06/as3_resource_ma.html
Search for dispose in some of these - also, one of the comments in
Grant's article mentions testing in the IDE vs testing in the browser
gives different results for loaded images.
HTH
Glen
Sander Schuurman wrote:
That's a local variable right? Doesn't it happen automatic?
I must concentrate on the _large Sprite, isn't it?
-Original Message-
From: flashcoders-boun...@chattyfig.figleaf.com [mailto:
flashcoders-boun...@chattyfig.figleaf.com] On Behalf Of Glen Pike
Sent: Wednesday, 21 January 2009 12:20
To: Flash Coders List
Subject: Re: [Flashcoders] Garbage Collection difficulty
Hi,
Do you have to destroy the Bitmap you create in the largeLoaded
function???
Glen
Sander Schuurman wrote:
Hi cool list,
I'm struggling with my Image class. It's supposed to load and unload
different sized images dynamicly; but I can't seem to get it to work
properly. The loading works fine, but the unloading not for the full 100%.
It visually unloads the image, but it remains in the memory. I have tried
several different things; I'm a bit stuck now.
Here is a stripped class:
public class Image extends MovieClip
{
...
private var _largeLoader:Loader;
private var _large:Sprite;
...
public function Image( thumbUrl :String,
normalUrl
:String,
largeUrl :String )
{
_tu = thumbUrl;
_nu = normalUrl;
_lu = largeUrl;
}
Re: [Flashcoders] instancing my own components (still new to AS3)
could you put your init() method call in a setter?
No :-)
Actually, these [Inspectable] parameters and their setters are not a
*functional* part of component. I mean that, if it's created via code
(using constructor), [Inspectable] parameters are not used.
However, if user has the component in Flash IDE and set anything in
component properties/inspector, they should work.
for now, I found a solution:
I put my init() in ENTER_FRAME listener and then remove this listener :-)
I just wanted to be sure that there's no solution more elegant than mine
On Wed, Jan 28, 2009 at 10:27 AM, Gregory N greg.gousa...@gmail.com wrote:
Yes, as allandt suggests, you should provide a default value for
constructor param
Unfortunately, it's not the only problem with components (at least in CS3)
For me, the worst one is about [Inspectable] parameters (and their
setters).
As described here
http://www.bit-101.com/blog/?p=1181
setters are called lo-o-ong AFTER constructor
And, even if I set my init() as listener for ADDED_TO_STAGE event...
setters
are not called before it :-(
Any advice to determine the exact time setters are called?
On 1/27/09, allandt bik-elliott (thefieldcomic.com) alla...@gmail.com
wrote:
you can put the default value into the parameters in the constructor so:
package {
import flash.display.MovieClip;
import flash.text.*;
public class MyButton extends MovieClip{
public var buttonLabel:String;
public function MyButton (buttonLabel:String = GO){
this.buttonLabel = buttonLabel;
btnLabel.text = buttonLabel;
}
}
}
--
--
Best regards,
GregoryN
http://GOusable.com
Flash components development.
Usability services.
___
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Flashcoders@chattyfig.figleaf.com
http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
[Flashcoders] Loading image on local filesystem
The AS is in a dir1 (dir1\stuff.as) and the images are in dir1\img\image.jpg. imagePath = new URLRequest(this.imagePathString); loader = new Loader(); trace(loader.load(imagePath)); this.imagePathString is a relative path to the image (img\image.jpg). How can I load these from a local filesystem? This will be moved to a web server but for testing I am running on windows and Flash CS3 in Windows XP as a vm on my laptop in VMWare. Thanks for any help. Kevin ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
Re: [Flashcoders] top down plane games
So I've been playing around with it some more and been getting a
little closer. But its still a ways off. The biggest issue with this
demo is that the plane catches the mouse before I reach the edges of
the map. I'm not sure what I can do next but thats where I am now. Its
funny to. About 20 mins after I posted this I decided to bite the
bullet and buy Keith's book. I'm going to open it tonight and see
where it gets me. If you guys have any more ideas please let me know!
Thanks!
What I've come up with so far is something like this...
var speed:Number = 2;
var turnRate:Number = .3;
var agroRange:Number = 500;
var moveX:Number = 0;
var moveY:Number = 0;
var distanceTotal:Number;
//stage vars
var minXMove:Number = 0;
var minYMove:Number = 0;
var maxXMove:Number = (levelMap.width - stage.stageWidth) * -1;
var maxYMove:Number = (levelMap.height - stage.stageHeight) * -1;
function movemap():void {
//move on x-axis
levelMap.x -= (moveX * 2);
if (levelMap.x = minXMove) {
levelMap.x = minXMove;
//speedX *= -1;
}
if (levelMap.x = maxXMove) {
levelMap.x = maxXMove;
//speedX *= -1;
}
//move on y-axis
levelMap.y -= (moveY * 2);
if (levelMap.y = minYMove) {
levelMap.y = minYMove;
//speedY *= -1;
}
if (levelMap.y = maxYMove) {
levelMap.y = maxYMove;
//speedY *= -1;
}
}
stage.addEventListener(Event.ENTER_FRAME, doFollow2);
//
// doFollow(follower, target)
// use ex: doFollow(myEnemyMovieClip, playerMovieClip)
//
function doFollow(e:Event) {
//calculate distance between follower and target
var distanceX:Number = mouseX - plane.x;
var distanceY:Number = mouseY - plane.y;
//get total distance as one number
distanceTotal = Math.sqrt((distanceX * distanceX) + (distanceY *
distanceY));
//check if target is within agro range
if(distanceTotal = agroRange){
//calculate how much to move
var moveDistanceX:Number = turnRate * (distanceX/distanceTotal);
var moveDistanceY:Number = turnRate * (distanceY/distanceTotal);
//increase current speed
moveX += moveDistanceX;
moveY += moveDistanceY;
//get total move distance
var totalmove = Math.sqrt(moveX*moveX+moveY*moveY);
//apply easing
moveX = speed * (moveX/totalmove);
moveY = speed * (moveY/totalmove);
//move follower
plane.x += moveX;
plane.y += moveY;
//rotate follower toward target
plane.rotation = 180*Math.atan2(moveY, moveX)/Math.PI;
movemap();
}
}
On Mon, Jan 26, 2009 at 1:46 PM, Todd Kerpelman t...@kerp.net wrote:
Well, again, don't know how much this will help you, but in the past when
I've done a camera following a moving object with a scrolling background,
I've attached a virtual spring from my camera to the position I want to go
to and then just let the spring drag my camera to the right place. If you
put on some pretty heavy damping, it ends up looking pretty good, and I
don't have to think about angles. :)
Your spring code would probably look something like this...
private function onEnterFrame(e:Event):void
{
var accelX:Number = (_pointToFollow.x - this.x) * _k;
var accelY:Number = (_pointToFollow.y - this.y) * _k;
_velX += accelX;
_velY += accelY;
this.x += _velX;
this.y += _velY;
_velX *= _damping;
_velY *= _damping;
}
You probably want _k to be something in the .1 range, and _damping to be in
the .75 range. All of this assumes, by the way, that you're not rotating the
camera to match the rotation of the plane.
But the book Jason recommended might have better ideas. I haven't read it
yet.
--T
On Sun, Jan 25, 2009 at 1:15 PM, Corban Baxter corb...@gmail.com wrote:
thanks todd. thats what I have been doing for the most part. I'm
working on figuring out how to move the Camera sprite around on an
angle.
i've got script that makes the airplane point towards the mouse at all
times. but thats the easy part. now i need the Camera sprite to move
at a consistent rate at the same angle the plane is pointing. Just
can't see to figure out what it take to do that.
var minXMove:Number = 0;
var minYMove:Number = 0;
var maxXMove:Number = (levelMap.width - stage.stageWidth) * -1;
var maxYMove:Number = (levelMap.height - stage.stageHeight) * -1;
stage.addEventListener(Event.ENTER_FRAME, pointAtCursor);
function movemap():void {
//move on x-axis
levelMap.x +=
