Re: [Flashcoders] Lightweight Collision for Platform Game

[Mark Winterhalder]

On Tue, Mar 4, 2008 at 11:34 PM, Elia Morling <[EMAIL PROTECTED]> wrote:
> What is the best collision system for a platform game? I've currently looked
>  at box2D, but I think it runs amazingly slow on afew macs and other
>  machines. Therefore I wonder if there is anything faster lightweight? I
>  think I may need move towards a ray placed under the character instead of
>  actually box-to-box collision. Any ideas?

The Flashplayer's native hitTest() is a fast bounding box test for two
specific clips, or pixel-exact test for a point and a clip. But if you
have several objects you need to test against each other, then
minimizing the total number of tests should come first. A quad tree
helps with that:



That should give you a small number of potential hits, which you can
then test with a more exact (and expensive) operation.

Mark
___
Flashcoders mailing list
Flashcoders@chattyfig.figleaf.com
http://chattyfig.figleaf.com/mailman/listinfo/flashcoders

Re: [Flashcoders] Lightweight Collision for Platform Game

[Steven Sacks]

http://lab.polygonal.de/

Elia Morling wrote:
What is the best collision system for a platform game? I've currently 
looked at box2D, but I think it runs amazingly slow on afew macs and 
other machines. Therefore I wonder if there is anything faster 
lightweight? I think I may need move towards a ray placed under the 
character instead of actually box-to-box collision. Any ideas?

___
Flashcoders mailing list
Flashcoders@chattyfig.figleaf.com
http://chattyfig.figleaf.com/mailman/listinfo/flashcoders

Re: [Flashcoders] Lightweight Collision for Platform Game

[Ivan Dembicki]

Hello,

http://www.harveycartel.org/metanet/tutorials.html

-- 
iv
http://www.bezier.ru
http://bezier.googlecode.com
___
Flashcoders mailing list
Flashcoders@chattyfig.figleaf.com
http://chattyfig.figleaf.com/mailman/listinfo/flashcoders

[Flashcoders] Lightweight Collision for Platform Game

[Elia Morling]

What is the best collision system for a platform game? I've currently looked 
at box2D, but I think it runs amazingly slow on afew macs and other 
machines. Therefore I wonder if there is anything faster lightweight? I 
think I may need move towards a ray placed under the character instead of 
actually box-to-box collision. Any ideas?


Thanks
Elia 
___

Flashcoders mailing list
Flashcoders@chattyfig.figleaf.com
http://chattyfig.figleaf.com/mailman/listinfo/flashcoders

[Flashcoders] ASDocDesktop - Easy documentation generation

[Cédric Tabin]

Hello guys,

I just developed a little application to easly generate the AS documentation
of a project. You can find it
here(or
on my
blog  - FR). I'd like to have maybe some return
about it ;)
I tried to take out the files linked to asdoc from the FlexSDK and I have
now a bundle of about 30Mo... maybe is there a way to do that more light :)

Regards,
Cedric
___
Flashcoders mailing list
Flashcoders@chattyfig.figleaf.com
http://chattyfig.figleaf.com/mailman/listinfo/flashcoders

Re: [Flashcoders] Re: AS2 vs. AS3: instantiate library symbols with a loop & string concatenation

[jonathan howe]

Thanks to everyone who chimed in with the answer!

Seems like there is a little disagreement between getDefinitionByName and
getClassByName.

>From some basic searches it looks like getClassByName has been replaced by
getDefinitionByName, and I could only find
flash.utils.getDefinitionByNamein the Adobe LiveDocs.

Either way, thanks for those who helped - I didn't quite know where to loock
in my trusty moock.

-jonathan


On Tue, Mar 4, 2008 at 4:31 PM, Cory Petosky <[EMAIL PROTECTED]>
wrote:

> import flash.utils.getDefinitionByName;
>
> for (var i:uint = 0; i < 30; ++i) {
>   var sym:MovieClip = new (getDefinitionByName("sym" + i) as Class)();
>
>   // rest
>  }
>
> On 3/4/08, jonathan howe <[EMAIL PROTECTED]> wrote:
> > Sorry - somehow triggered the send mail hotkey before I was finished:
> >
> >  On Tue, Mar 4, 2008 at 3:25 PM, jonathan howe <[EMAIL PROTECTED]>
> >  wrote:
> >
> >
> >  >
> >  >
> >  > Imagine I have in my library a series of MovieClips with linkage
> >  > identifiers like so:
> >  >
> >  > sym0
> >  > sym1
> >  > sym2
> >  > ...
> >  > sym29
> >  >
> >  > In AS2, if I wanted to create instances of each one (or perhaps
> decide
> >  > which symbol to use based on XML data, for example), I could use a
> for loop:
> >  >
> >  > for (var i:Number = 0; i < 30; i ++) {
> >  > var new_mc:MovieClip = parent_mc.attachMovie("sym" + i, "sym" +
> i, i);
> >  > // do stuff with clip
> >  > }
> >  >
> >  > and create each symbol via passing a concatenated string as
> symbolName.
> >  >
> >  > Now, in AS3, I can't think of a way to do this efficiently. In our
> simple
> >  > example, I can only think of the following:
> >  >
> >  > for (var i:int = 0; i < 30; i ++) {
> >  > var sym:MovieClip;
> >  >  switch (i) {
> >  >  case 0: sym = new sym0();
> >
> > >  case 1:sym =  new sym1();
> >  >  case 2: sym =new sym2();
> >
> > > ...
> >  >  }
> >  > // do stuff with clip
> >  > }
> >  >
> >  >
> >  > Is there a more efficient way to do this in AS3? You can't really
> >  > instantiate a class based on a stringname, can you?
> >  >
> >
> > Was I doing myself a disservice by using this technique in AS2 anyway?
> >  >
> >
> >  Thanks,
> >
> > -jonathan
> >
> > ___
> >  Flashcoders mailing list
> >  Flashcoders@chattyfig.figleaf.com
> >  http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
> >
>
>
> --
> Cory Petosky : Lead Developer : PUNY
> 1618 Central Ave NE Suite 130
> Minneapolis, MN 55413
> Office: 612.216.3924
> Mobile: 240.422.9652
> Fax: 612.605.9216
> http://www.punyentertainment.com
>  ___
> Flashcoders mailing list
> Flashcoders@chattyfig.figleaf.com
> http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
>



-- 
-jonathan howe :: 404.434.2321 :: 180 High St Apt 26 Portland, ME 04101
___
Flashcoders mailing list
Flashcoders@chattyfig.figleaf.com
http://chattyfig.figleaf.com/mailman/listinfo/flashcoders

Re: [Flashcoders] positioning along bezier curve

[Ivan Dembicki]

Hello Keith

>> is there a way to calculate a point midway along the curve?
> private function findPointOnCurve(p1x:Number, p1y:Number, cx:Number,

- this method can return midway along the curve if
bezier curve is symmetrical only.

finding point on curve by time iterator is very different thing than finding
point by distance along the curve. It is difficult calculation using bisection
of Newton algorithm:
http://bezier.googlecode.com/svn/trunk/bezier/src/flash/geom/Bezier.as
look at getTimeByDistance

possible way using Bezier class:

var myBezier:Bezier = new Bezier(.);
var midwayTime:Number = myBezier.getTimeByDistance(myBezier.length/2);
var midwayPoint:Point = myBezier.getPoint(midwayTime);

also analog of findPointOnCurve is presented in Bezier class as
getPoint method.


good luck!

-- 
iv
http://www.bezier.ru
http://bezier.googlecode.com
___
Flashcoders mailing list
Flashcoders@chattyfig.figleaf.com
http://chattyfig.figleaf.com/mailman/listinfo/flashcoders

Re: [Flashcoders] [as2] problem with super class on Tweener callback

[Wagner Amaral]

Hello, Cory!

That is a nice one, I believe it would work for now!
Oh, the wonders AS2 forces you to do...

Thanks!
-- 
Wagner Amaral
Agência Ginga - Brazil
www.agenciaginga.com.br



On Tue, Mar 4, 2008 at 3:52 PM, Cory Petosky <[EMAIL PROTECTED]>
wrote:

> I don't have a solution, but I have an arguably less ugly workaround
> that I've used in similar cases.
>
> public class Superclass {
>public function load():Void {
>   __load();
>}
>
>protected function __load():Void {
>// "Base class" functionality here
>}
> }
>
> public class Subclass extends Superclass {
>public function load():Void {
>Tweener.addTween(this, {onComplete: __load});
> }
> }
>
> On 3/4/08, Wagner Amaral <[EMAIL PROTECTED]> wrote:
> > Hey there Zeh!
> >
> >  On Tue, Mar 4, 2008 at 12:18 PM, Zeh Fernando <[EMAIL PROTECTED]>
> >  wrote:
> >
> >
> >  >
> >  > Hm.. that's a good question. It runs functions inside of the instance
> >  > using .apply, but if you pass the super.load without wrapping it, I'm
> >  > sure exactly how the function reference is handled by actionscript.
> >  >
> >
> >
> > Yeah, I've looked at Tweener's code, even tried to tweak a little bit to
> see
> >  if I could get through it, then I realized it's not Tweener's fault.
> >  By issuing a:
> >  trace(tScope);
> >  on line 754, right before:
> >  tTweening.onComplete.apply(tScope, tTweening.onCompleteParams);
> >  it traces my current instance correctly.
> >
> >
> >
> >  >
> >  > Anyway, have you tried this instead?
> >  >
> >  > public function load():Void {
> >  >var obj:Object = new Object({
> >  >   _y: 200,
> >  >   time: 1,
> >  >onComplete: function() { super.load(); }
> >  >});
> >  >Tweener.addTween(this, obj);
> >  > }
> >  >
> >
> >
> > Yes, I tried that. Just tried again right now to make sure I wasn't
> missing
> >  anything ;)
> >  Still, no success...
> >
> >  I've just pasted the code from the superclass inside the onComplete
> handler
> >  (it's just a event dispatch anyway, works for now), but I really hate
> myself
> >  for doing this, specially because this is a refactoring of some old
> crappy
> >  code, and it's supposed to be made the right way.
> >  Anyway, still trying to come up with something. (Boy, I really wish the
> boss
> >  would let me use AS3 already, I'm sure these things wouldn't happen.
> AS2
> >  really isn't made to serious programming)
> >
> >  Thanks for the help so far, Zeh! Valeu!
> >
> >
> >  --
> >
> > Wagner Amaral
> >  Agência Ginga - Brazil
> >  www.agenciaginga.com.br
> >  ___
> >
> > Flashcoders mailing list
> >  Flashcoders@chattyfig.figleaf.com
> >  http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
> >
>
>
> --
> Cory Petosky : Lead Developer : PUNY
> 1618 Central Ave NE Suite 130
> Minneapolis, MN 55413
> Office: 612.216.3924
> Mobile: 240.422.9652
> Fax: 612.605.9216
> http://www.punyentertainment.com
>
> ___
> 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] Hit Object Question

[Kenneth Kawamoto]

To make your approach work, you can draw a rectangle in ldrBdr and 
bdrRep (one in red and one in green) and toggle the alpha of one of them 
sits above the other (if you addChild() it goes above everything already 
in the display list).


Or just change the colour of one border Sprite instead.

Kenneth Kawamoto
http://www.materiaprima.co.uk/

anuj sharma wrote:

Hi Kenneth
Thanks for the reply. So what's the solution of my problem?
Thanks
Anuj

On Tue, Mar 4, 2008 at 1:01 PM, Kenneth Kawamoto 
<[EMAIL PROTECTED] > wrote:


I think it's a typo but your BdrRep has no rectangle drawn, and even if
you did have the rectangle, toggling the alpha of Sprite underneath will
not give you any visual feedbacks...

Kenneth Kawamoto
http://www.materiaprima.co.uk/

anuj sharma wrote:
 > Hi all
 > I am trying to implement hit object in my project. I have sprite
class and I
 > am loading multiple instances of UI Loader in my sprite class and
displaying
 > it on the main screen. The user can drag and drop those UILoaders
on the
 > main stage wherever they want.My aim was that if user drops one
UIloader on
 > top of already placed UiLoader, then the already placed UILoader
will be
 > replaced with the dropped UILoader. I am successful in
implementing that by
 > hitting hitTestObject method. All of my UIloaders are having
green color
 > border. Now my requirement is that as soon as the user places
UILoader on
 > top of already existing UILoader , the  UILoader which is going to be
 > replaced changes border color from green to red showing the user
that the
 > UIloader is being replaced and on Mouse release the UiLoader is
going to be
 > replaced.
 > In short on mouse over, the border color has to be changed and on
mouse
 > release, object has to be replaced. I am adding my rectangle(in
Sprite
 > Container) as the border to the UILoader. Below is some code to
make things
 > little clearer
 > Please help me in figuring out the problem.
 > Any help will be appreciated.
 > Thanks
 > Anuj
 > /*CODE
 > //UILoader Being Created
 > function CreateUILoaderObject(num:Number):DisplayObject
 > {
 > var myUILoader:UILoader = new UILoader();
 > var  container:Sprite=new Sprite();
 > myUILoader.name="myUILoader";
 > myUILoader.source = "/video/pic_"+(num+1)+".swf";
 > myUILoader.load();
 >
 > //Defining Border for the Selected Camera
 > var ldrBdr:Sprite = new Sprite();
 > ldrBdr.name = "border";
 > ldrBdr.alpha=0;
 > ldrBdr.graphics.lineStyle(2, 0x00ff00);
 > ldrBdr.graphics.drawRect(myUILoader.x+23, myUILoader.y+45,
 > myUILoader.width, myUILoader.height);
 >
 > //Defining Border for the replaced Camera
 > var BdrRep:Sprite=new Sprite();
 > BdrRep.name="RepBorder";
 > BdrRep.alpha=0;
 > ldrBdr.graphics.lineStyle(2, 0x00ff00);
 > ldrBdr.graphics.drawRect(myUILoader.x+23, myUILoader.y+45,
 > myUILoader.width, myUILoader.height);
 >
 > myUILoader.addChild(ldrBdr);
 > myUILoader.addChild(BdrRep);
 > container.addChild(myUILoader);
 >
 >
 > //Enabling Dragging & Dropping of Video Loader Anywhere
 >
myUILoader.addEventListener(MouseEvent.MOUSE_DOWN,dragUILoader);
 >
myUILoader.addEventListener(MouseEvent.MOUSE_UP,dropUILoader);
 >
myUILoader.addEventListener(MouseEvent.MOUSE_OVER,showBorder);

 > myUILoader.addEventListener(MouseEvent.MOUSE_OUT,hideBorder);
 > return myUILoader;
 > }
 >
 > //Show the selected Camera with green Border
 > function showBorder(e:MouseEvent):void
 > {
 > e.target.getChildByName("border").alpha=1;
 > }
 > function hideBorder(e:MouseEvent):void
 > {
 > e.target.getChildByName("border").alpha=0;
 > }
 > //UILoader to be replaced
 >  function dropUILoader(e:MouseEvent):void
 > {
 >
 > if(e.targetis UILoader)
 > {
 > var myUILoader:UILoader = e.target as UILoader;
 >
 > if (mouseY<746)
 > {
 > myUILoader.stopDrag();
 >   var
trackChild:Number=container.getChildIndex(myUILoader);
 >var childContainer:DisplayObject= container.getChildAt
 > (trackChild);
 > for (var z:Number=0;
z<=container.numChildren-1;
 > z++)
 > {
 > var
res

Re: [Flashcoders] Re: AS2 vs. AS3: instantiate library symbols with a loop & string concatenation

[Cory Petosky]

import flash.utils.getDefinitionByName;

for (var i:uint = 0; i < 30; ++i) {
   var sym:MovieClip = new (getDefinitionByName("sym" + i) as Class)();

   // rest
}

On 3/4/08, jonathan howe <[EMAIL PROTECTED]> wrote:
> Sorry - somehow triggered the send mail hotkey before I was finished:
>
>  On Tue, Mar 4, 2008 at 3:25 PM, jonathan howe <[EMAIL PROTECTED]>
>  wrote:
>
>
>  >
>  >
>  > Imagine I have in my library a series of MovieClips with linkage
>  > identifiers like so:
>  >
>  > sym0
>  > sym1
>  > sym2
>  > ...
>  > sym29
>  >
>  > In AS2, if I wanted to create instances of each one (or perhaps decide
>  > which symbol to use based on XML data, for example), I could use a for 
> loop:
>  >
>  > for (var i:Number = 0; i < 30; i ++) {
>  > var new_mc:MovieClip = parent_mc.attachMovie("sym" + i, "sym" + i, i);
>  > // do stuff with clip
>  > }
>  >
>  > and create each symbol via passing a concatenated string as symbolName.
>  >
>  > Now, in AS3, I can't think of a way to do this efficiently. In our simple
>  > example, I can only think of the following:
>  >
>  > for (var i:int = 0; i < 30; i ++) {
>  > var sym:MovieClip;
>  >  switch (i) {
>  >  case 0: sym = new sym0();
>
> >  case 1:sym =  new sym1();
>  >  case 2: sym =new sym2();
>
> > ...
>  >  }
>  > // do stuff with clip
>  > }
>  >
>  >
>  > Is there a more efficient way to do this in AS3? You can't really
>  > instantiate a class based on a stringname, can you?
>  >
>
> Was I doing myself a disservice by using this technique in AS2 anyway?
>  >
>
>  Thanks,
>
> -jonathan
>
> ___
>  Flashcoders mailing list
>  Flashcoders@chattyfig.figleaf.com
>  http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
>


-- 
Cory Petosky : Lead Developer : PUNY
1618 Central Ave NE Suite 130
Minneapolis, MN 55413
Office: 612.216.3924
Mobile: 240.422.9652
Fax: 612.605.9216
http://www.punyentertainment.com
___
Flashcoders mailing list
Flashcoders@chattyfig.figleaf.com
http://chattyfig.figleaf.com/mailman/listinfo/flashcoders

Re: [Flashcoders] Hit Object Question

[anuj sharma]

Hi Kenneth
Thanks for the reply. So what's the solution of my problem?
Thanks
Anuj

On Tue, Mar 4, 2008 at 1:01 PM, Kenneth Kawamoto <[EMAIL PROTECTED]>
wrote:

> I think it's a typo but your BdrRep has no rectangle drawn, and even if
> you did have the rectangle, toggling the alpha of Sprite underneath will
> not give you any visual feedbacks...
>
> Kenneth Kawamoto
> http://www.materiaprima.co.uk/
>
> anuj sharma wrote:
> > Hi all
> > I am trying to implement hit object in my project. I have sprite class
> and I
> > am loading multiple instances of UI Loader in my sprite class and
> displaying
> > it on the main screen. The user can drag and drop those UILoaders on the
> > main stage wherever they want.My aim was that if user drops one UIloader
> on
> > top of already placed UiLoader, then the already placed UILoader will be
> > replaced with the dropped UILoader. I am successful in implementing that
> by
> > hitting hitTestObject method. All of my UIloaders are having green color
> > border. Now my requirement is that as soon as the user places UILoader
> on
> > top of already existing UILoader , the  UILoader which is going to be
> > replaced changes border color from green to red showing the user that
> the
> > UIloader is being replaced and on Mouse release the UiLoader is going to
> be
> > replaced.
> > In short on mouse over, the border color has to be changed and on mouse
> > release, object has to be replaced. I am adding my rectangle(in Sprite
> > Container) as the border to the UILoader. Below is some code to make
> things
> > little clearer
> > Please help me in figuring out the problem.
> > Any help will be appreciated.
> > Thanks
> > Anuj
> > /*CODE
> > //UILoader Being Created
> > function CreateUILoaderObject(num:Number):DisplayObject
> > {
> > var myUILoader:UILoader = new UILoader();
> > var  container:Sprite=new Sprite();
> > myUILoader.name="myUILoader";
> > myUILoader.source = "/video/pic_"+(num+1)+".swf";
> > myUILoader.load();
> >
> > //Defining Border for the Selected Camera
> > var ldrBdr:Sprite = new Sprite();
> > ldrBdr.name = "border";
> > ldrBdr.alpha=0;
> > ldrBdr.graphics.lineStyle(2, 0x00ff00);
> > ldrBdr.graphics.drawRect(myUILoader.x+23, myUILoader.y+45,
> > myUILoader.width, myUILoader.height);
> >
> > //Defining Border for the replaced Camera
> > var BdrRep:Sprite=new Sprite();
> > BdrRep.name="RepBorder";
> > BdrRep.alpha=0;
> > ldrBdr.graphics.lineStyle(2, 0x00ff00);
> > ldrBdr.graphics.drawRect(myUILoader.x+23, myUILoader.y+45,
> > myUILoader.width, myUILoader.height);
> >
> > myUILoader.addChild(ldrBdr);
> > myUILoader.addChild(BdrRep);
> > container.addChild(myUILoader);
> >
> >
> > //Enabling Dragging & Dropping of Video Loader Anywhere
> > myUILoader.addEventListener(MouseEvent.MOUSE_DOWN,dragUILoader);
> > myUILoader.addEventListener(MouseEvent.MOUSE_UP,dropUILoader);
> > myUILoader.addEventListener(MouseEvent.MOUSE_OVER,showBorder);
> > myUILoader.addEventListener(MouseEvent.MOUSE_OUT,hideBorder);
> > return myUILoader;
> > }
> >
> > //Show the selected Camera with green Border
> > function showBorder(e:MouseEvent):void
> > {
> > e.target.getChildByName("border").alpha=1;
> > }
> > function hideBorder(e:MouseEvent):void
> > {
> > e.target.getChildByName("border").alpha=0;
> > }
> > //UILoader to be replaced
> >  function dropUILoader(e:MouseEvent):void
> > {
> >
> > if(e.targetis UILoader)
> > {
> > var myUILoader:UILoader = e.target as UILoader;
> >
> > if (mouseY<746)
> > {
> > myUILoader.stopDrag();
> >   var trackChild:Number=container.getChildIndex(myUILoader);
> >var childContainer:DisplayObject= container.getChildAt
> > (trackChild);
> > for (var z:Number=0; z<=container.numChildren-1;
> > z++)
> > {
> > var restChild:DisplayObject=
> container.getChildAt
> > (z);
> > if ((childContainer!=restChild)&&(
> > childContainer.hitTestObject(restChild))==true)
> > {
> > container.removeChild(restChild);
> > }
> > }
> > }
> > ___
> > 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] AS2 vs. AS3: instantiate library symbols with a loop & string concatenation

[Kenneth Kawamoto]

for(var i:uint = 0; i<30; i++){
   var sym:MovieClip = new (getDefinitionByName("Sym" + i) as Class)();
   parent_mc.addChild(sym);
}

Kenneth Kawamoto
http://www.materiaprima.co.uk/

jonathan howe wrote:

Imagine I have in my library a series of MovieClips with linkage identifiers
like so:

sym0
sym1
sym2
...
sym29

In AS2, if I wanted to create instances of each one (or perhaps decide which
symbol to use based on XML data, for example), I could use a for loop:

for (var i:Number = 0; i < 30; i ++) {
var new_mc:MovieClip = parent_mc.attachMovie("sym" + i, "sym" + i, i);
// do stuff with clip
}

and create each symbol via passing a concatenated string as symbolName.

Now, in AS3, I can't think of a way to do this efficiently. In our simple
example, I can only think of the following:

for (var i:int = 0; i < 30; i ++) {
var sym:MovieClip;
 switch (i) {
 case 0: sym = new sym0();
 case 1: new sym1();
 case 2: new sym2();
...
 }
// do stuff with clip
}


Is there a more efficient way to do this in AS3? You can't really
instantiate a class based on a stringname, can you?



___
Flashcoders mailing list
Flashcoders@chattyfig.figleaf.com
http://chattyfig.figleaf.com/mailman/listinfo/flashcoders

Re: [Flashcoders] Re: AS2 vs. AS3: instantiate library symbols with a loop & string concatenation

[Bob Leisle]

Hi Jonathon,

Your AS2 method is tried and true. Here's the new and improved AS3 way 
of doing it.


for (var i:Number = 0; i < 30; i ++) {
   // build the String name
   var symbol:String = "sym" + i;
   // locate the class
   var symbolClass:Class = getDefinitionByName(symbol) as Class;
   // instantiate the clip using the class
   var new_mc:MovieClip = new symbolClass() as MovieClip;
   // add clip to stage
   addChild(new_mc);
   // do stuff with clip
}

You may or may not need the " as MovieClip" bit on the instantiation, 
depending on how your class is actually defined.


hth,
Bob


jonathan howe wrote:

Sorry - somehow triggered the send mail hotkey before I was finished:

On Tue, Mar 4, 2008 at 3:25 PM, jonathan howe <[EMAIL PROTECTED]>
wrote:

  

Imagine I have in my library a series of MovieClips with linkage
identifiers like so:

sym0
sym1
sym2
...
sym29

In AS2, if I wanted to create instances of each one (or perhaps decide
which symbol to use based on XML data, for example), I could use a for loop:

for (var i:Number = 0; i < 30; i ++) {
var new_mc:MovieClip = parent_mc.attachMovie("sym" + i, "sym" + i, i);
// do stuff with clip
}

and create each symbol via passing a concatenated string as symbolName.

Now, in AS3, I can't think of a way to do this efficiently. In our simple
example, I can only think of the following:

for (var i:int = 0; i < 30; i ++) {
var sym:MovieClip;
 switch (i) {
 case 0: sym = new sym0();
 case 1:sym =  new sym1();
 case 2: sym =new sym2();
...
 }
// do stuff with clip
}


Is there a more efficient way to do this in AS3? You can't really
instantiate a class based on a stringname, can you?



Was I doing myself a disservice by using this technique in AS2 anyway?
  


Thanks,
-jonathan
___
Flashcoders mailing list
Flashcoders@chattyfig.figleaf.com
http://chattyfig.figleaf.com/mailman/listinfo/flashcoders



  


--
Thanks,
~
Bob Leisle 
Headsprout Software & Engineering

http://www.headsprout.com
Where kids learn to read! 


___
Flashcoders mailing list
Flashcoders@chattyfig.figleaf.com
http://chattyfig.figleaf.com/mailman/listinfo/flashcoders

Re: [Flashcoders] AS2 vs. AS3: instantiate library symbols with a loop & string concatenation

[Glen Pike]

Look at getClassByName() for AS3.

eric e. dolecki wrote:

for( var i:uint = 0; i<30; i++ )
{
var sym:MovieClip = new Item();
sym.name = "sym"+i;
someContainer.addChild( sym );
}
...
someContainer.getChildAt( nIndex );
etc.



On Tue, Mar 4, 2008 at 3:25 PM, jonathan howe <[EMAIL PROTECTED]>
wrote:

  

Imagine I have in my library a series of MovieClips with linkage
identifiers
like so:

sym0
sym1
sym2
...
sym29

In AS2, if I wanted to create instances of each one (or perhaps decide
which
symbol to use based on XML data, for example), I could use a for loop:

for (var i:Number = 0; i < 30; i ++) {
   var new_mc:MovieClip = parent_mc.attachMovie("sym" + i, "sym" + i, i);
   // do stuff with clip
}

and create each symbol via passing a concatenated string as symbolName.

Now, in AS3, I can't think of a way to do this efficiently. In our simple
example, I can only think of the following:

for (var i:int = 0; i < 30; i ++) {
var sym:MovieClip;
switch (i) {
case 0: sym = new sym0();
case 1: new sym1();
case 2: new sym2();
...
}
   // do stuff with clip
}


Is there a more efficient way to do this in AS3? You can't really
instantiate a class based on a stringname, can you?


--
-jonathan howe :: 404.434.2321 :: 180 High St Apt 26 Portland, ME 04101
___
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


  


--

Glen Pike
01736 759321
www.glenpike.co.uk 
___
Flashcoders mailing list
Flashcoders@chattyfig.figleaf.com
http://chattyfig.figleaf.com/mailman/listinfo/flashcoders

Re: [Flashcoders] Hit Object Question

[Kenneth Kawamoto]

I think it's a typo but your BdrRep has no rectangle drawn, and even if 
you did have the rectangle, toggling the alpha of Sprite underneath will 
not give you any visual feedbacks...


Kenneth Kawamoto
http://www.materiaprima.co.uk/

anuj sharma wrote:

Hi all
I am trying to implement hit object in my project. I have sprite class and I
am loading multiple instances of UI Loader in my sprite class and displaying
it on the main screen. The user can drag and drop those UILoaders on the
main stage wherever they want.My aim was that if user drops one UIloader on
top of already placed UiLoader, then the already placed UILoader will be
replaced with the dropped UILoader. I am successful in implementing that by
hitting hitTestObject method. All of my UIloaders are having green color
border. Now my requirement is that as soon as the user places UILoader on
top of already existing UILoader , the  UILoader which is going to be
replaced changes border color from green to red showing the user that the
UIloader is being replaced and on Mouse release the UiLoader is going to be
replaced.
In short on mouse over, the border color has to be changed and on mouse
release, object has to be replaced. I am adding my rectangle(in Sprite
Container) as the border to the UILoader. Below is some code to make things
little clearer
Please help me in figuring out the problem.
Any help will be appreciated.
Thanks
Anuj
/*CODE
//UILoader Being Created
function CreateUILoaderObject(num:Number):DisplayObject
{
var myUILoader:UILoader = new UILoader();
var  container:Sprite=new Sprite();
myUILoader.name="myUILoader";
myUILoader.source = "/video/pic_"+(num+1)+".swf";
myUILoader.load();

//Defining Border for the Selected Camera
var ldrBdr:Sprite = new Sprite();
ldrBdr.name = "border";
ldrBdr.alpha=0;
ldrBdr.graphics.lineStyle(2, 0x00ff00);
ldrBdr.graphics.drawRect(myUILoader.x+23, myUILoader.y+45,
myUILoader.width, myUILoader.height);

//Defining Border for the replaced Camera
var BdrRep:Sprite=new Sprite();
BdrRep.name="RepBorder";
BdrRep.alpha=0;
ldrBdr.graphics.lineStyle(2, 0x00ff00);
ldrBdr.graphics.drawRect(myUILoader.x+23, myUILoader.y+45,
myUILoader.width, myUILoader.height);

myUILoader.addChild(ldrBdr);
myUILoader.addChild(BdrRep);
container.addChild(myUILoader);


//Enabling Dragging & Dropping of Video Loader Anywhere
myUILoader.addEventListener(MouseEvent.MOUSE_DOWN,dragUILoader);
myUILoader.addEventListener(MouseEvent.MOUSE_UP,dropUILoader);
myUILoader.addEventListener(MouseEvent.MOUSE_OVER,showBorder);
myUILoader.addEventListener(MouseEvent.MOUSE_OUT,hideBorder);
return myUILoader;
}

//Show the selected Camera with green Border
function showBorder(e:MouseEvent):void
{
e.target.getChildByName("border").alpha=1;
}
function hideBorder(e:MouseEvent):void
{
e.target.getChildByName("border").alpha=0;
}
//UILoader to be replaced
 function dropUILoader(e:MouseEvent):void
{

if(e.targetis UILoader)
{
var myUILoader:UILoader = e.target as UILoader;

if (mouseY<746)
{
myUILoader.stopDrag();
  var trackChild:Number=container.getChildIndex(myUILoader);
   var childContainer:DisplayObject= container.getChildAt
(trackChild);
for (var z:Number=0; z<=container.numChildren-1;
z++)
{
var restChild:DisplayObject=container.getChildAt
(z);
if ((childContainer!=restChild)&&(
childContainer.hitTestObject(restChild))==true)
{
container.removeChild(restChild);
}
}
}
___
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] AS2 vs. AS3: instantiate library symbols with a loop & string concatenation

[eric e. dolecki]

for( var i:uint = 0; i<30; i++ )
{
var sym:MovieClip = new Item();
sym.name = "sym"+i;
someContainer.addChild( sym );
}
...
someContainer.getChildAt( nIndex );
etc.



On Tue, Mar 4, 2008 at 3:25 PM, jonathan howe <[EMAIL PROTECTED]>
wrote:

> Imagine I have in my library a series of MovieClips with linkage
> identifiers
> like so:
>
> sym0
> sym1
> sym2
> ...
> sym29
>
> In AS2, if I wanted to create instances of each one (or perhaps decide
> which
> symbol to use based on XML data, for example), I could use a for loop:
>
> for (var i:Number = 0; i < 30; i ++) {
>var new_mc:MovieClip = parent_mc.attachMovie("sym" + i, "sym" + i, i);
>// do stuff with clip
> }
>
> and create each symbol via passing a concatenated string as symbolName.
>
> Now, in AS3, I can't think of a way to do this efficiently. In our simple
> example, I can only think of the following:
>
> for (var i:int = 0; i < 30; i ++) {
> var sym:MovieClip;
> switch (i) {
> case 0: sym = new sym0();
> case 1: new sym1();
> case 2: new sym2();
> ...
> }
>// do stuff with clip
> }
>
>
> Is there a more efficient way to do this in AS3? You can't really
> instantiate a class based on a stringname, can you?
>
>
> --
> -jonathan howe :: 404.434.2321 :: 180 High St Apt 26 Portland, ME 04101
> ___
> 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

[Flashcoders] AS2 vs. AS3: instantiate library symbols with a loop & string concatenation

[jonathan howe]

Imagine I have in my library a series of MovieClips with linkage identifiers
like so:

sym0
sym1
sym2
...
sym29

In AS2, if I wanted to create instances of each one (or perhaps decide which
symbol to use based on XML data, for example), I could use a for loop:

for (var i:Number = 0; i < 30; i ++) {
var new_mc:MovieClip = parent_mc.attachMovie("sym" + i, "sym" + i, i);
// do stuff with clip
}

and create each symbol via passing a concatenated string as symbolName.

Now, in AS3, I can't think of a way to do this efficiently. In our simple
example, I can only think of the following:

for (var i:int = 0; i < 30; i ++) {
var sym:MovieClip;
 switch (i) {
 case 0: sym = new sym0();
 case 1: new sym1();
 case 2: new sym2();
...
 }
// do stuff with clip
}


Is there a more efficient way to do this in AS3? You can't really
instantiate a class based on a stringname, can you?


-- 
-jonathan howe :: 404.434.2321 :: 180 High St Apt 26 Portland, ME 04101
___
Flashcoders mailing list
Flashcoders@chattyfig.figleaf.com
http://chattyfig.figleaf.com/mailman/listinfo/flashcoders

[Flashcoders] Re: AS2 vs. AS3: instantiate library symbols with a loop & string concatenation

[jonathan howe]

Sorry - somehow triggered the send mail hotkey before I was finished:

On Tue, Mar 4, 2008 at 3:25 PM, jonathan howe <[EMAIL PROTECTED]>
wrote:

>
>
> Imagine I have in my library a series of MovieClips with linkage
> identifiers like so:
>
> sym0
> sym1
> sym2
> ...
> sym29
>
> In AS2, if I wanted to create instances of each one (or perhaps decide
> which symbol to use based on XML data, for example), I could use a for loop:
>
> for (var i:Number = 0; i < 30; i ++) {
> var new_mc:MovieClip = parent_mc.attachMovie("sym" + i, "sym" + i, i);
> // do stuff with clip
> }
>
> and create each symbol via passing a concatenated string as symbolName.
>
> Now, in AS3, I can't think of a way to do this efficiently. In our simple
> example, I can only think of the following:
>
> for (var i:int = 0; i < 30; i ++) {
> var sym:MovieClip;
>  switch (i) {
>  case 0: sym = new sym0();
>  case 1:sym =  new sym1();
>  case 2: sym =new sym2();
> ...
>  }
> // do stuff with clip
> }
>
>
> Is there a more efficient way to do this in AS3? You can't really
> instantiate a class based on a stringname, can you?
>
Was I doing myself a disservice by using this technique in AS2 anyway?
>

Thanks,
-jonathan
___
Flashcoders mailing list
Flashcoders@chattyfig.figleaf.com
http://chattyfig.figleaf.com/mailman/listinfo/flashcoders

RE: [Flashcoders] positioning along bezier curve

[Merrill, Jason]

Thanks everyone, looks great  - definitely have some things to go on.
That method looks to be exactly what I needed Keith - will look at the
other links as well.

Jason Merrill
Bank of America  
GT&O L&LD Solutions Design & Development 
eTools & Multimedia 

Bank of America Flash Platform Developer Community


Are you a Bank of America associate interested in innovative learning
ideas and technologies? 
Check out our internal  GT&O Innovative Learning Blog & subscribe.

___
Flashcoders mailing list
Flashcoders@chattyfig.figleaf.com
http://chattyfig.figleaf.com/mailman/listinfo/flashcoders

[Flashcoders] STEAM/SMOKE

[Dwayne Neckles]

Any smoke /steam particle effects not done in as3 but in aS 2?

_
Helping your favorite cause is as easy as instant messaging. You IM, we give.
http://im.live.com/Messenger/IM/Home/?source=text_hotmail_join___
Flashcoders mailing list
Flashcoders@chattyfig.figleaf.com
http://chattyfig.figleaf.com/mailman/listinfo/flashcoders

Re: [Flashcoders] [as2] problem with super class on Tweener callback

[Cory Petosky]

I don't have a solution, but I have an arguably less ugly workaround
that I've used in similar cases.

public class Superclass {
public function load():Void {
   __load();
}

protected function __load():Void {
// "Base class" functionality here
}
}

public class Subclass extends Superclass {
public function load():Void {
Tweener.addTween(this, {onComplete: __load});
}
}

On 3/4/08, Wagner Amaral <[EMAIL PROTECTED]> wrote:
> Hey there Zeh!
>
>  On Tue, Mar 4, 2008 at 12:18 PM, Zeh Fernando <[EMAIL PROTECTED]>
>  wrote:
>
>
>  >
>  > Hm.. that's a good question. It runs functions inside of the instance
>  > using .apply, but if you pass the super.load without wrapping it, I'm
>  > sure exactly how the function reference is handled by actionscript.
>  >
>
>
> Yeah, I've looked at Tweener's code, even tried to tweak a little bit to see
>  if I could get through it, then I realized it's not Tweener's fault.
>  By issuing a:
>  trace(tScope);
>  on line 754, right before:
>  tTweening.onComplete.apply(tScope, tTweening.onCompleteParams);
>  it traces my current instance correctly.
>
>
>
>  >
>  > Anyway, have you tried this instead?
>  >
>  > public function load():Void {
>  >var obj:Object = new Object({
>  >   _y: 200,
>  >   time: 1,
>  >onComplete: function() { super.load(); }
>  >});
>  >Tweener.addTween(this, obj);
>  > }
>  >
>
>
> Yes, I tried that. Just tried again right now to make sure I wasn't missing
>  anything ;)
>  Still, no success...
>
>  I've just pasted the code from the superclass inside the onComplete handler
>  (it's just a event dispatch anyway, works for now), but I really hate myself
>  for doing this, specially because this is a refactoring of some old crappy
>  code, and it's supposed to be made the right way.
>  Anyway, still trying to come up with something. (Boy, I really wish the boss
>  would let me use AS3 already, I'm sure these things wouldn't happen. AS2
>  really isn't made to serious programming)
>
>  Thanks for the help so far, Zeh! Valeu!
>
>
>  --
>
> Wagner Amaral
>  Agência Ginga - Brazil
>  www.agenciaginga.com.br
>  ___
>
> Flashcoders mailing list
>  Flashcoders@chattyfig.figleaf.com
>  http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
>


-- 
Cory Petosky : Lead Developer : PUNY
1618 Central Ave NE Suite 130
Minneapolis, MN 55413
Office: 612.216.3924
Mobile: 240.422.9652
Fax: 612.605.9216
http://www.punyentertainment.com

___
Flashcoders mailing list
Flashcoders@chattyfig.figleaf.com
http://chattyfig.figleaf.com/mailman/listinfo/flashcoders

RE: [Flashcoders] positioning along bezier curve

[Keith Reinfeld]

> Jason Merrill wrote: 
> I am drawing a bezier curve using:
> 
> mySprite.graphics.curveTo(X1, Y1, X2, Y2); 
> 
> Works, and so I know where the control point is, and the desintation 
> point, but is there a way to calculate a point midway along the curve? 
> I'd like to position a sprite there. 
 
Hi Jason, 
 
The findPointOnCurve function (shown below) will give you exactly what you
need. Just plug in your coordinates. Use a value of .5 for t to return the
curve's midpoint. 
 
The findPointOnCurve function is used by Zeh Fernando's mc_tween2.as for the
MovieClip.bezierSlideTo(...). I have also been successful adapting it for
use in conjunction with Jack Doyle's TweenLite.as (http://www.greensock.com)
for tweening an arc. 
 
 
private function findPointOnCurve(p1x:Number, p1y:Number, cx:Number,
cy:Number, p2x:Number, p2y:Number, t:Number):Object { 
// From Zeh Fernando's mc_tween2.as (http://hosted.zeh.com.br/mctween/) 
// Returns the points on a bezier curve for a given time (t is 0-1); 
// This is based on Robert Penner's Math.pointOnCurve() function 
return {x:p1x + t*(2*(1-t)*(cx-p1x) + t*(p2x - p1x)), 
y:p1y + t*(2*(1-t)*(cy-p1y) + t*(p2y - p1y))}; 
} 
 
// Usage: 
mySprite.graphics.clear(); 
mySprite.graphics.lineStyle(3, 0x00FF00, 100); 
mySprite.graphics.moveTo(start.x, start.y); 
mySprite.graphics.curveTo(control.x, control.y, finish.x, finish.y); 
var p:Object = findPointOnCurve(start.x, start.y, control.x, control.y,
finish.x, finish.y, .5); 
mySprite.graphics.lineStyle(10, 0xFF, 100); 
mySprite.graphics.moveTo(p.x, p.y); 
mySprite.graphics.lineTo(p.x + 1, p.y - 1); 
 
HTH 
  
Regards, 

-Keith 
http://keithreinfeld.home.comcast.net
 



___
Flashcoders mailing list
Flashcoders@chattyfig.figleaf.com
http://chattyfig.figleaf.com/mailman/listinfo/flashcoders

Re: [Flashcoders] [as2] problem with super class on Tweener callback

[Wagner Amaral]

Hey there Zeh!

On Tue, Mar 4, 2008 at 12:18 PM, Zeh Fernando <[EMAIL PROTECTED]>
wrote:

>
> Hm.. that's a good question. It runs functions inside of the instance
> using .apply, but if you pass the super.load without wrapping it, I'm
> sure exactly how the function reference is handled by actionscript.
>

Yeah, I've looked at Tweener's code, even tried to tweak a little bit to see
if I could get through it, then I realized it's not Tweener's fault.
By issuing a:
trace(tScope);
on line 754, right before:
tTweening.onComplete.apply(tScope, tTweening.onCompleteParams);
it traces my current instance correctly.


>
> Anyway, have you tried this instead?
>
> public function load():Void {
>var obj:Object = new Object({
>   _y: 200,
>   time: 1,
>onComplete: function() { super.load(); }
>});
>Tweener.addTween(this, obj);
> }
>

Yes, I tried that. Just tried again right now to make sure I wasn't missing
anything ;)
Still, no success...

I've just pasted the code from the superclass inside the onComplete handler
(it's just a event dispatch anyway, works for now), but I really hate myself
for doing this, specially because this is a refactoring of some old crappy
code, and it's supposed to be made the right way.
Anyway, still trying to come up with something. (Boy, I really wish the boss
would let me use AS3 already, I'm sure these things wouldn't happen. AS2
really isn't made to serious programming)

Thanks for the help so far, Zeh! Valeu!

--
Wagner Amaral
Agência Ginga - Brazil
www.agenciaginga.com.br
___
Flashcoders mailing list
Flashcoders@chattyfig.figleaf.com
http://chattyfig.figleaf.com/mailman/listinfo/flashcoders

Re: [Flashcoders] [as2] problem with super class on Tweener callback

[Zeh Fernando]

Hello there!
(...)
Well, what that does, in the same situation as above, is that when Tweener
is done, that very own load() function is called again.
I've tried using Delegate, delegating to himself, to the superclass, nothing
did it.
I've also tried creating a local function that just calls super.load() and
delegating to that, but no luck either.

My guess at the moment is that it's a side-effect to the "weird" AS2
implementation of static classes.
However I'm curious. Am I doing something completely wrong and not noticing
it? Is my implementation flawed?
Or there is a way to work that around?


Hm.. that's a good question. It runs functions inside of the instance 
using .apply, but if you pass the super.load without wrapping it, I'm 
sure exactly how the function reference is handled by actionscript.


Anyway, have you tried this instead?

public function load():Void {
   var obj:Object = new Object({
  _y: 200,
  time: 1,
  onComplete: function() { super.load(); }
   });
   Tweener.addTween(this, obj);
}

I believe your overall implementation is fine.

Zeh
___
Flashcoders mailing list
Flashcoders@chattyfig.figleaf.com
http://chattyfig.figleaf.com/mailman/listinfo/flashcoders

[Flashcoders] [as2] problem with super class on Tweener callback

[Wagner Amaral]

Hello there!

Here's the deal: I have the following class hierarchy

MovieClip  // adobe
- BasicMovieClip  // as2lib
-- GenericMovieClip
--- EventMulticasterMovieClip
 GenericSection
- DropdownSection  // abstract class, private constructor
-- *Several classes extending DropdownSection

That GenericSection is part of a section handling. It has basically two
functions: load() and unload(), both public, and they basically dispatch an
event, so my section handler can act properly.
Ok, so I have several "sections" who behave almost the same, so I'm writing
generic code in DropdownSection, so I can generalize it more cleanly.

Here comes the code:

When I have this on DropdownSection:

public function load():Void
{
   super.load();
}

public function unload():Void
{
   super.unload();
}

(these are not necessarily needed, but just to clarify)
then everything works perfectly, when my section handler calls load() and
unload() on any of the classes that extends DropdownSection.

However, when I code something like this:

public function load():Void
{
   var obj:Object = new Object({
  _y: 200,
  time: 1,
  onComplete: super.load
   });
   Tweener.addTween(this, obj);
}


(and the equivalent for the unload() function)
* Tweener is Zeh Fernando's tween class - http://code.google.com/p/tweener/

Well, what that does, in the same situation as above, is that when Tweener
is done, that very own load() function is called again.
I've tried using Delegate, delegating to himself, to the superclass, nothing
did it.
I've also tried creating a local function that just calls super.load() and
delegating to that, but no luck either.

My guess at the moment is that it's a side-effect to the "weird" AS2
implementation of static classes.

However I'm curious. Am I doing something completely wrong and not noticing
it? Is my implementation flawed?
Or there is a way to work that around?



Thank you very much for your time!
-- 
Wagner Amaral
Agência Ginga - Brazil
www.agenciaginga.com.br
___
Flashcoders mailing list
Flashcoders@chattyfig.figleaf.com
http://chattyfig.figleaf.com/mailman/listinfo/flashcoders