[Flashcoders] BitmapData subtract from every pixel
Hey List, I have BitmapData A and BitmapData B; Is there a fast routine that from every pixel in A will subtract the color of the coresponding pixel in B? I'm looking for a solution using the built-in BitmapData functions, since a manual looop on every pixel will be somewhat intensive (even if I use the getPixelsloop ByteArraysetPixels hack to set the pixels, instead of a setPixel() loop); BitmapData.merge() is a nice and fast way to add pixels from one bitmap to another, specifing te amount to be added via a Multiplier param. It would be cool if one can set a multiplier of a negative value, which will result in substracting the amount instead of adding it, but that's not possible. Maybe a soluton is to have the display object of BitmapData A stacked above that of BitmapData B, with some BlendMode setting (SCREEN?) that will subtract B pixels from A pixels? Other ideas? Thanks, Bojil ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
Re: [Flashcoders] BitmapData subtract from every pixel
Bojil, Can you use colorTransform to invert the colour values, then do a merge()? Ian On 8/21/07, Bojil Vassilev [EMAIL PROTECTED] wrote: Hey List, I have BitmapData A and BitmapData B; Is there a fast routine that from every pixel in A will subtract the color of the coresponding pixel in B? I'm looking for a solution using the built-in BitmapData functions, since a manual looop on every pixel will be somewhat intensive (even if I use the getPixelsloop ByteArraysetPixels hack to set the pixels, instead of a setPixel() loop); BitmapData.merge() is a nice and fast way to add pixels from one bitmap to another, specifing te amount to be added via a Multiplier param. It would be cool if one can set a multiplier of a negative value, which will result in substracting the amount instead of adding it, but that's not possible. Maybe a soluton is to have the display object of BitmapData A stacked above that of BitmapData B, with some BlendMode setting (SCREEN?) that will subtract B pixels from A pixels? Other ideas? Thanks, Bojil ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
RE: [Flashcoders] BitmapData subtract from every pixel
I have BitmapData A and BitmapData B; Is there a fast routine that from every pixel in A will subtract the color of the coresponding pixel in B? I'm looking for a solution using the built-in BitmapData functions, since a manual looop on every pixel will be somewhat intensive (even if I use the getPixelsloop ByteArraysetPixels hack to set the pixels, instead of a setPixel() loop); Interestingly, in Director this is easy using copyPixels and the #subtract ink, so as the BitmapData object is essentially an updating of Director's Image object, I'd have expected the same routine to be available in Flash. Is there some undocumented parameter of the copyPixels function? Danny ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
[Flashcoders] Q:Flash Player update and Impact on 3D in Flash
Great news! http://www.kaourantin.net/2007/08/what-just-happened-to-video-on-web_20.html I was just wondering what impact if any this will have on the future of 3d in Flash. One of the drawbacks of 3d in Flash (Sandy , PV3D) has been the lack of hardware acceleration . Any thoughts? [e] jbach at bitstream.ca [c] 416.668.0034 [w] www.bitstream.ca ...all improvisation is life in search of a style. - Bruce Mau,'LifeStyle' ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
[Flashcoders] FocusManager
Hi list, I'm having trouble with the focusmanager. I created a Joystick component that should be able to receive focus using the tab-key (tabIndex) or by clicking it. Since it extends UIComponent, implementing the tabIndex version is easy; at init, set tabEnabled to true and tabChildren to false. Now when the user clicks the component, it should also receive focus. I've tried to call setFocus(this) or getFocusManager().setFocus(), but the result is no focus, and worse, the joystick element with which you control the component stops functioning as if the mouse is ignored. Does anyone have an example or a good source about the FocusManager? Thanks in advance. Bart Wttewaall ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
Re: [Flashcoders] save swf
Coming from someone who's never done this, and doesn't know if it's possible, but: Would it be possible to capture your user created design in BitmapData (I was fairly sure there's a method to extract pixel info from a MovieClip, correct?) then transmit that back to the server and use PHP and the image libs to create a bitmap image? Again, complete shot in the dark here.. I'm not even sure if the BD produced by Flash is usable by any graphics library, PHP or otherwise. On 8/20/07, Alan MacDougall [EMAIL PROTECTED] wrote: bassam mohaisen wrote: Hi all I'm trying to do e-tshirt design where the user can desgin his shirt and add text or images so I need to know how can I save the design as image or swf for the design how can I take screenshot , if somebody know the concept and the code . all the text and photos will be load inside movie clip so if i need know how can i save the movie clip at runtime This is actually an extremely difficult problem. Flash is not able to create files in the way that you're thinking. Your best bet is to record the T-shirt design in descriptive terms: this text field uses 24-point Impact, is at coordinates xy, is rotated 30 degrees; this image is blahblah.jpg, it's scaled to 120%, positioned at xy. Then send that information to a server-side script, written in PHP, Java, C#, or something, which uses an imaging library to create an image. ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
Re: [Flashcoders] FocusManager
Are you using calling this relative to _root or _level0? _root.focusManager.setFocus Bart Wttewaall wrote: Hi list, I'm having trouble with the focusmanager. I created a Joystick component that should be able to receive focus using the tab-key (tabIndex) or by clicking it. Since it extends UIComponent, implementing the tabIndex version is easy; at init, set tabEnabled to true and tabChildren to false. Now when the user clicks the component, it should also receive focus. I've tried to call setFocus(this) or getFocusManager().setFocus(), but the result is no focus, and worse, the joystick element with which you control the component stops functioning as if the mouse is ignored. Does anyone have an example or a good source about the FocusManager? Thanks in advance. Bart Wttewaall ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
Re: [Flashcoders] Q:Flash Player update and Impact on 3D in Flash
Um... that is a really good announcement. But I don't understand your question's relevance - I don't see any announcement about hardware acceleration or 3D? Don't mistake MPEG4 video support for MPEG4 multimedia/3D support. Ian On 8/21/07, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: Great news! http://www.kaourantin.net/2007/08/what-just-happened-to-video-on-web_20.html I was just wondering what impact if any this will have on the future of 3d in Flash. One of the drawbacks of 3d in Flash (Sandy , PV3D) has been the lack of hardware acceleration . Any thoughts? [e] jbach at bitstream.ca [c] 416.668.0034 [w] www.bitstream.ca ...all improvisation is life in search of a style. - Bruce Mau,'LifeStyle' ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
[Flashcoders] Flash CMS
Is there a good Flash CMS available for us that allows users to add sections to nav and sub navs based on templates we setup via XML. Or just a large robust Flash System that you all would recommend the cheaper the better. :) -- corbanb ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
[Flashcoders] Flash 8/AS2/WinXP/Control Key combo question
Hello all. I've been working with a couple of developers over on the
FlashNewbie list on this without success. I'm hoping that with the
larger Flash developer audience on this list someone may have an answer.
I'm trying to assign keypress combinations to buttons such as Control+a,
Control+b, and so on. Problem is that I cannot find any code that
captures the Control+a or Control+c key combos. The theory is that
Windows XP is intercepting the keys since those key combos are used by
the Windows OS for selecting and copying. I've tried several variations
of code but all fail on Control+a and Control+c. Here is my latest
attempt (mind the wrap):
createTextField(message_txt, 100, 0, 0, 550, 400);
var ctrlPressed:Boolean = false;
var ctrlKeyListener:Object = new Object();
var letterKeyListener:Object = new Object();
ctrlKeyListener.onKeyDown = function() {
if (Key.getCode() == 17) {
ctrlPressed = true;
message_txt.text = CTRL down;
}
};
letterKeyListener.onKeyDown = function() {
if (ctrlPressed == true Key.getCode() == 65) {
message_txt.text = CTRL+A down;
}
};
Key.addListener(ctrlKeyListener);
Key.addListener(letterKeyListener);
If I change the key code to B (66) rather than A (65) this code works
great.
Is there a simple way to make this work or will Control+a and Control+c
fail under all circumstances?
Thanks.
Dave
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Re: [Flashcoders] Q:Flash Player update and Impact on 3D in Flash
On Aug 21, 2007, at 9:10 AM, [EMAIL PROTECTED] wrote: I was just wondering what impact if any this will have on the future of 3d in Flash. Well, all the video updates will have zero effect. Those have nothing to do with 3d. This is basically the inclusion of the MainConcept MPEG4 decoding engine - which is the same code in FlipFactory and almost all other licensed h.264 decoders. The multi-threaded (multi-core CPU) work they are doing will have an effect though. cheers, jon ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
Re: [Flashcoders] Intro to OOP using ActionScript
English Windows 3.1? I would have died if it hadn't been for Paetzold. Heh, and I was just peeking at the Win32 API book last night. Didn't expect to see that name again. ; ) On the subject of teaching OOP to non-programmers, I'm torn. I've seen the method of We'll explain later but for now just type this code work in Java. I've also see it leave an entire class of Java students dazed and confused. The time it worked, Java was taught starting completely with swing where we were asked to build something on day one using the swing classes/controls and the OO concepts kept appearing in a natural way along with basic concepts. The class seemed to take the concepts in stride. The time it didn't work was my second trip through Java with a different instructor. This class went through the basics of programming in a linear way and when the OOP concepts started (or the what we've been doing lecture), I'm not sure I've ever so many people rubbing their heads and staring blankly. Granted, I think it came down to the instructor and how she ran the class, but at the same time, it felt like the content switched gears on the second class. Some people couldn't adapt their thinking. In a later conversation with that instructor she mentioned that she always has about 40% (pulling a sufficiently high number out of the air) of the class drop at that lesson. Thinking about the swing+Java class, I'm not sure how you could translate that to AS2 without hoops that muddy the OOP waters (attachMovieClip, createEmptyMovieClip). Heh, sorry, long post simply because seeing Petzold's name gave me warm fuzzies. Jer ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
Re: [Flashcoders] Q:Flash Player update and Impact on 3D in Flash
The updated support will allow Flash Player to take advantage of hardware acceleration provided in computer video cards On 8/21/07, Ian Thomas [EMAIL PROTECTED] wrote: Um... that is a really good announcement. But I don't understand your question's relevance - I don't see any announcement about hardware acceleration or 3D? Don't mistake MPEG4 video support for MPEG4 multimedia/3D support. Ian On 8/21/07, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: Great news! http://www.kaourantin.net/2007/08/what-just-happened-to-video-on-web_20.html I was just wondering what impact if any this will have on the future of 3d in Flash. One of the drawbacks of 3d in Flash (Sandy , PV3D) has been the lack of hardware acceleration . Any thoughts? [e] jbach at bitstream.ca [c] 416.668.0034 [w] www.bitstream.ca ...all improvisation is life in search of a style. - Bruce Mau,'LifeStyle' ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
RE: [Flashcoders] Q:Flash Player update and Impact on 3D in Flash
In the context of video acceleration since the hardware, of not available then software, will be decoding and displaying the video. There's no mention of hardware being used to accelerate non video playback. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of eric e. dolecki Sent: 21 August 2007 15:49 To: flashcoders@chattyfig.figleaf.com Subject: Re: [Flashcoders] Q:Flash Player update and Impact on 3D in Flash The updated support will allow Flash Player to take advantage of hardware acceleration provided in computer video cards ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
Re: [Flashcoders] Q:Flash Player update and Impact on 3D in Flash
Eric - firstly, what's that quote from? I can't find it on either Tinic's site or the Yahoo site he links to. Secondly, the Adobe press announcement seems quite clear: as well as hardware accelerated, multi-core enhanced full screen video playback. That's hardware acceleration _for the playback of video_. That's nothing to do with talking to the 3D rendering pipeline. Ian On 8/21/07, eric e. dolecki [EMAIL PROTECTED] wrote: The updated support will allow Flash Player to take advantage of hardware acceleration provided in computer video cards ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
Re: [Flashcoders] Q:Flash Player update and Impact on 3D in Flash
Ahh true. H.264 support for playback with the aid of video cards. Wondering if BitmapData stuff will see any improvement along with video (pushing pixels to screen with less software). I would guess yes. If so, Papervision3D use bitmap data. - eric On 8/21/07, Paul Venton [EMAIL PROTECTED] wrote: In the context of video acceleration since the hardware, of not available then software, will be decoding and displaying the video. There's no mention of hardware being used to accelerate non video playback. -Original Message- From: [EMAIL PROTECTED] [mailto: [EMAIL PROTECTED] On Behalf Of eric e. dolecki Sent: 21 August 2007 15:49 To: flashcoders@chattyfig.figleaf.com Subject: Re: [Flashcoders] Q:Flash Player update and Impact on 3D in Flash The updated support will allow Flash Player to take advantage of hardware acceleration provided in computer video cards ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
Re: [Flashcoders] Flash 8/AS2/WinXP/Control Key combo question
I'm fairly sure that the browser is what's intercepting your keystrokes.
As for a fix in Flash, in general I don't think there is one. But there are
smarter people than me on this list, so someone else may have a solution I
don't.
However, if capturing those keystrokes are important to ya, you could try
seeing if JavaScript can capture them. I've seen some elearning pass through
our shop that uses JS to capture keys and send them to flash using
ExternalInterface, but I've never tested them against existing browser
shortcuts. It's on my to do list to test out, but rush projects keep
getting in the way.
On 8/21/07, Vaughn, David (Contractor) (J6B) [EMAIL PROTECTED]
wrote:
Hello all. I've been working with a couple of developers over on the
FlashNewbie list on this without success. I'm hoping that with the
larger Flash developer audience on this list someone may have an answer.
I'm trying to assign keypress combinations to buttons such as Control+a,
Control+b, and so on. Problem is that I cannot find any code that
captures the Control+a or Control+c key combos. The theory is that
Windows XP is intercepting the keys since those key combos are used by
the Windows OS for selecting and copying. I've tried several variations
of code but all fail on Control+a and Control+c. Here is my latest
attempt (mind the wrap):
createTextField(message_txt, 100, 0, 0, 550, 400);
var ctrlPressed:Boolean = false;
var ctrlKeyListener:Object = new Object();
var letterKeyListener:Object = new Object();
ctrlKeyListener.onKeyDown = function() {
if (Key.getCode() == 17) {
ctrlPressed = true;
message_txt.text = CTRL down;
}
};
letterKeyListener.onKeyDown = function() {
if (ctrlPressed == true Key.getCode() == 65) {
message_txt.text = CTRL+A down;
}
};
Key.addListener(ctrlKeyListener);
Key.addListener(letterKeyListener);
If I change the key code to B (66) rather than A (65) this code works
great.
Is there a simple way to make this work or will Control+a and Control+c
fail under all circumstances?
Thanks.
Dave
___
Flashcoders@chattyfig.figleaf.com
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http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
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___
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Re: [Flashcoders] BitmapData subtract from every pixel
Thank you both for the replies. There is some urgent stuff at work right now, but I'll test more later and report what I found out. Cheers. Danny Kodicek написа: I have BitmapData A and BitmapData B; Is there a fast routine that from every pixel in A will subtract the color of the coresponding pixel in B? I'm looking for a solution using the built-in BitmapData functions, since a manual looop on every pixel will be somewhat intensive (even if I use the getPixelsloop ByteArraysetPixels hack to set the pixels, instead of a setPixel() loop); Interestingly, in Director this is easy using copyPixels and the #subtract ink, so as the BitmapData object is essentially an updating of Director's Image object, I'd have expected the same routine to be available in Flash. Is there some undocumented parameter of the copyPixels function? Danny ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
Re: [Flashcoders] Q:Flash Player update and Impact on 3D in Flash
Saw that quote in an Apple Dev forum, so it could be wrong. I'll take this news at face value for now then - it kicks ASS. - eric On 8/21/07, Ian Thomas [EMAIL PROTECTED] wrote: Eric - firstly, what's that quote from? I can't find it on either Tinic's site or the Yahoo site he links to. Secondly, the Adobe press announcement seems quite clear: as well as hardware accelerated, multi-core enhanced full screen video playback. That's hardware acceleration _for the playback of video_. That's nothing to do with talking to the 3D rendering pipeline. Ian On 8/21/07, eric e. dolecki [EMAIL PROTECTED] wrote: The updated support will allow Flash Player to take advantage of hardware acceleration provided in computer video cards ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
Re: [Flashcoders] Flash CMS
Hello Corban, I've been working on such a CMS for 2 years now, but i haven't yet totally finished (no doc, code optimisation not done, etc...) As for today, this CMS lacks a 'creation' module, i.e. I generate by hand the first site with chapters, subchapters,etc as a 'template'. Then everything is editable. The CMS doesn't require database, just PHP. If you're interested, i can provide links and access to test sites. Gilles [EMAIL PROTECTED] ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
Re: [Flashcoders] save swf
Jer Brand wrote: Coming from someone who's never done this, and doesn't know if it's possible, but: Would it be possible to capture your user created design in BitmapData (I was fairly sure there's a method to extract pixel info from a MovieClip, correct?) then transmit that back to the server and use PHP and the image libs to create a bitmap image? Again, complete shot in the dark here.. I'm not even sure if the BD produced by Flash is usable by any graphics library, PHP or otherwise. Yes, technically, but transmitting that much bitmap data from Flash to the server, pixel by pixel, takes a great deal of time and bandwidth. I strongly recommend against the attempt. ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
Re: [Flashcoders] BitmapData subtract from every pixel
Hi, Could you not put the two bitmaps in separate movieclips, set the blend mode of the appropriate one to subtract, then draw the result into another Bitmap?? Glen Ian Thomas wrote: Bojil, Can you use colorTransform to invert the colour values, then do a merge()? Ian On 8/21/07, Bojil Vassilev [EMAIL PROTECTED] wrote: Hey List, I have BitmapData A and BitmapData B; Is there a fast routine that from every pixel in A will subtract the color of the coresponding pixel in B? I'm looking for a solution using the built-in BitmapData functions, since a manual looop on every pixel will be somewhat intensive (even if I use the getPixelsloop ByteArraysetPixels hack to set the pixels, instead of a setPixel() loop); BitmapData.merge() is a nice and fast way to add pixels from one bitmap to another, specifing te amount to be added via a Multiplier param. It would be cool if one can set a multiplier of a negative value, which will result in substracting the amount instead of adding it, but that's not possible. Maybe a soluton is to have the display object of BitmapData A stacked above that of BitmapData B, with some BlendMode setting (SCREEN?) that will subtract B pixels from A pixels? Other ideas? Thanks, Bojil ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
Re: [Flashcoders] Intro to OOP using ActionScript
Start small and work your way up. You don't need classes until the functions start to get unmanageable. That won't happen until you've thoroughly covered variables and control structures. By the time classes are necessary, the students should be relieved to have a way to organize their forest of elaborate functions. Even if they're introduced in an organic and natural way, like building a Swing application, they're going to just be one more distraction for people who are struggling with the syntax of a for loop. They're an intermediate topic, treat them as one. ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
Re: [Flashcoders] BitmapData subtract from every pixel
You can also use the subtract blendmode. BitmapData.draw supports using a blendmode, and subtract does exactly what you want. --Brian On 8/21/07, Bojil Vassilev [EMAIL PROTECTED] wrote: Thank you both for the replies. There is some urgent stuff at work right now, but I'll test more later and report what I found out. Cheers. Danny Kodicek написа: I have BitmapData A and BitmapData B; Is there a fast routine that from every pixel in A will subtract the color of the coresponding pixel in B? I'm looking for a solution using the built-in BitmapData functions, since a manual looop on every pixel will be somewhat intensive (even if I use the getPixelsloop ByteArraysetPixels hack to set the pixels, instead of a setPixel() loop); Interestingly, in Director this is easy using copyPixels and the #subtract ink, so as the BitmapData object is essentially an updating of Director's Image object, I'd have expected the same routine to be available in Flash. Is there some undocumented parameter of the copyPixels function? Danny ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
Re: [Flashcoders] Flash 8/AS2/WinXP/Control Key combo question
|-+-
| | Vaughn, David (Contractor) |
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| | [EMAIL PROTECTED]|
| | Sent by: |
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| | 08-21-07 10:21 AM |
| | Please respond to flashcoders |
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| cc:
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| Subject: [Flashcoders] Flash 8/AS2/WinXP/Control Key combo question
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Is there a simple way to make this work or will Control+a and Control+c
fail under all circumstances?
Hiya Dave,
I guess you could always poll for it in an onEnterFrame:
createTextField(message_txt, 100, 0, 0, 550, 400);
onEnterFrame = function() {
message_txt.text = ;
if (Key.isDown(Key.CONTROL) Key.isDown(65)) message_txt.text =
Ctrl+A;
}
Cheers,
A.
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RE: [Flashcoders] Flash 8/AS2/WinXP/Control Key combo question
Andrew, thanks very much for your suggestion. I experimented a bit with your code. The Control+A combo *DOES* work with this method. However, when run through the IE browser pressing Control+B brings up the IE Organize Favorites dialog box, Control+P brings up the Print dialog box, etc. so IE is intercepting the key combo. Unless there is some method of shielding the key combos from IE on the web or the Flash player in standalone mode I think we'll have to switch over to the Shift key instead of Control. Thanks Andrew! ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
Re: [Flashcoders] Intro to OOP using ActionScript
I do not believe that starting people out doing things the wrong way is ever a good start. Teach OOP from the day one. Not as a name or a theory but as a normal way to program. Just start with simple classes and give the students a framework for testing that they do not have to deal with. You can start with very simple classes representing everyday objects that everyone can understand. You can introduce various types of variables very easily - one at a time. (Cats have a name, add in age, later add date of birth) You can add Arrarys very easily in the context of a real world object. (Add in an array of offspring) If you provide the Pet interface with the test program, the students will see how their names for properties do not matter. By the time you have to explain what OOP is, the kids will already be programming OOP and wonder why anyone ever did it any other way. Ron Alan MacDougall wrote: Start small and work your way up. You don't need classes until the functions start to get unmanageable. That won't happen until you've thoroughly covered variables and control structures. By the time classes are necessary, the students should be relieved to have a way to organize their forest of elaborate functions. Even if they're introduced in an organic and natural way, like building a Swing application, they're going to just be one more distraction for people who are struggling with the syntax of a for loop. They're an intermediate topic, treat them as one. ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
Re: [Flashcoders] Intro to OOP using ActionScript
For the record, I completely agree, Ron. Ian On 8/21/07, Ron Wheeler [EMAIL PROTECTED] wrote: I do not believe that starting people out doing things the wrong way is ever a good start. Teach OOP from the day one. Not as a name or a theory but as a normal way to program. Just start with simple classes and give the students a framework for testing that they do not have to deal with. ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
Re: [Flashcoders] Intro to OOP using ActionScript
Procedural isn't wrong. OOP isn't right. They're used for different purposes. The fact is, OOP is a trade off for flexibility and scalability over speed; speed in development, speed in execution. Procedural programming has its place (ask any game developer). Procedural programming is a necessary and important first step in learning how to code. It's the best way to learn how programming works because it's a simplified approach and won't get in the way of learning basic syntax. People with no programming experience will not understand abstract concepts like classes, inheritance, polymorphism, and encapsulation - the very things that make up OOP. OOP is a specialized dialect, built upon the basic language of programming. If you don't learn the basics, you can't truly learn the dialect. It's akin to learning phrases from a French phrase book and going to Paris on vacation versus learning how conjugation and verb tenses work combined with vocabulary. Who is going to be more successful at carrying on rudimentary conversations, or understanding what's being said to them? If we take two students and you teach them OOP for 1 month and I teach them procedural for two weeks and then OOP for two weeks, my student will be further along than your student. The reason is simple. When you learn the fundamentals first you have a greater capacity for understanding of more advanced topics. If you take somebody snowboarding and force them to learn how to do a 720 without teaching them anything else, they will eventually be able to do a 720. If you instead teach them all the basic moves, how to enter and exit tricks, and then move into 180s, 270s and 360s, they'll be much better at snowboarding in general and will naturally learn 720s soon after. Plus, if you sit down with non-programmers to teach them OOP, and you have to teach them the basics first, you will find yourself naturally teaching them procedural programming because every time you try to move into topics OOP, your students will get lost and you'll end up circling back to explain the basics again. OOP is not a beginner topic. ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
Re: [Flashcoders] Intro to OOP using ActionScript
On 8/21/07, Steven Sacks [EMAIL PROTECTED] wrote: If we take two students and you teach them OOP for 1 month and I teach them procedural for two weeks and then OOP for two weeks, my student will be further along than your student. The reason is simple. When you learn the fundamentals first you have a greater capacity for understanding of more advanced topics. I really don't agree -- and I'd like to see you back that assertion up with some hard data. Getting across the idea that (for example) a game object has a bunch of attributes/properties (speed, direction, score, colour) -- that doesn't require prior programming knowledge. Getting across the idea that an object has an x value and if you increment it, it goes right - that requires a bit of geometry, but again, not prior programming knowledge. Inheritance, abstraction, interfaces et al - these are all advanced topics and require a firm base to be working from (and there I agree with you). But there's no reason why that base can't be objects, methods and properties rather than procedures. Objects are easy to relate to real-world examples. Given that nearly every language - not to mention data representation - in common use these days either uses, or is capable of using a model that uses objects, methods and properties, it'd be vastly helpful to have students working from that basis. Ian ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
RE: [Flashcoders] Intro to OOP using ActionScript
Steven Sacks wrote: Procedural programming is a necessary and important first step in learning how to code I've been following this debate, and I pretty much agree with Steven. I remember when I took my first programming course, and the professor told us we'd need a 5 1/4 floppy disk. I asked what's that? He told me, and I went down to the local office supply store and put down my $5 for my very first floppy. The point is that we're way up here, and the students may not even understand what a variable is. They need the basic concepts of a function/procedure/subroutine/method, variables, and more advanced concepts like control (if) and iteration (for, while). Backtracking a bit, do you remember when you took your first algebra class, and were first introduced to the concept of a variable? To me, that's the dividing line between arithmetic and mathematics. Just the idea of a variable is a tough concept to grasp at first. I don't think you need to call it procedural. Just call it the basic building blocks that they will need for OOP (or procedural, for that matter). There's not that much difference, really, between OOP and procedural. OOP just encapsulates chunks of procedural code and its data. ActionScript's built-in classes are much like the libraries I used in Turbo Pascal in the 80s. Modern programming requires that you understand OOP, and I would move the students very quickly to an OOP paradigm. But, like Steven says, they need the basics, which are really neither procedural nor OOP. They're just the basics. Cordially, Kerry Thompson ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
Re: [Flashcoders] Intro to OOP using ActionScript
On 8/21/07, Ian Thomas [EMAIL PROTECTED] wrote: On 8/21/07, Steven Sacks [EMAIL PROTECTED] wrote: If we take two students and you teach them OOP for 1 month and I teach them procedural for two weeks and then OOP for two weeks, my student will be further along than your student.s. I really don't agree -- and I'd like to see you back that assertion up with some hard data. I actually wonder how much of us are qualified to judge. Most of us probably learned procedural programming first, so that seems natural to us. When I taught myself BASIC on my family's TI 99/4A back in the early '80s (and later on our Commodore 64 circa 1990), OOP didn't even exist. Of course, it laid out the fundamentals so that, by the time I was in high school and OOP was gaining impetus, I was ready to learn it--with a bit of initial struggling. So that route worked, in the end. But was it the best route? Some of the basics I learned early on, like GOTO and line numbers, are barely present in programming anymore (assembly language excepted). And would it have been easier to segue into OOP if I had been used to dealing with variables that had fields and methods? Would it have been that much harder to learn to use Math.abs() rather than ABS(), or bitmapData.getPixel(row, col) rather than peek offset + screenwidth * row + col? I feel like it might have been beneficial to start using objects, even without understanding everything about them, shortly after learning about simple variables. But, then again, I don't really know. When I taught children how to program in the late '90s, some of the languages I taught required using objects (Visual Basic) and others didn't (LOGO). I really don't recall there being much difference in the difficulty. Of course I didn't go very deeply into OOP, just how to use existing APIs. But maybe that was a better approach, ultimately. I don't know--I haven't kept in touch with any of the kids. Is there any younger person or latecomer out there who started using OOP basics when learning to program for the first time? What are your thoughts? -- Mike Keesey ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
RE: [Flashcoders] Intro to OOP using ActionScript
If you want to teach kids about forests, making them look at leaves under a microscope for 6-12 months is not the way to go about it. While a leaf may be fundamental to the life of a tree, a complete understanding of that leaf is not even remotely necessary to understanding what a forest is about. OOP is a great approach to programming, and there's absolutely no reason to ensure that students are seeing strings in their dreams before teaching it. Whether you teach a procedural or an OOP methodology, you're going to have to teach basics concurrently...there's no getting around it. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Ian Thomas Sent: Tuesday, August 21, 2007 11:17 AM To: flashcoders@chattyfig.figleaf.com Subject: Re: [Flashcoders] Intro to OOP using ActionScript On 8/21/07, Steven Sacks [EMAIL PROTECTED] wrote: If we take two students and you teach them OOP for 1 month and I teach them procedural for two weeks and then OOP for two weeks, my student will be further along than your student. The reason is simple. When you learn the fundamentals first you have a greater capacity for understanding of more advanced topics. I really don't agree -- and I'd like to see you back that assertion up with some hard data. Getting across the idea that (for example) a game object has a bunch of attributes/properties (speed, direction, score, colour) -- that doesn't require prior programming knowledge. Getting across the idea that an object has an x value and if you increment it, it goes right - that requires a bit of geometry, but again, not prior programming knowledge. Inheritance, abstraction, interfaces et al - these are all advanced topics and require a firm base to be working from (and there I agree with you). But there's no reason why that base can't be objects, methods and properties rather than procedures. Objects are easy to relate to real-world examples. Given that nearly every language - not to mention data representation - in common use these days either uses, or is capable of using a model that uses objects, methods and properties, it'd be vastly helpful to have students working from that basis. Ian ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
Re: [Flashcoders] Intro to OOP using ActionScript
On 8/21/07, Steven Sacks [EMAIL PROTECTED] wrote: Object-oriented programming (OOP) is a programming paradigm that uses objects and their interactions to design applications and computer programs. It is based on several techniques, including inheritance, modularity, polymorphism, and encapsulation. OOP is based on the things you acknowledge are advanced topics. Ipso facto, OOP is advanced, right? ;) I think there's actually more agreement than disagreement here. Nobody is arguing that you should be teaching polymorphism on the second day, just that you can start to introduce objects at an early stage. I mean, if you can start with: x = 500; trace(x); ... you could certainly also start with: myShape.x = 500; The core basics of OOP--using fields and methods--are not that far beyond the core basics of programming--using variables and functions. Of course inheritance, polymorphism, encapsulation, etc. come much later, and design patterns even later. No one would dispute that, I think. -- Mike Keesey ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
Re: [Flashcoders] Intro to OOP using ActionScript
most college programming courses have prerequisites right? personally i know many programmers who don't have a background in programming who jumped right into oop...just looking at the code i can tell what they understand about programming let alone oop... my 0.02 pieces of lint p ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
Re: [Flashcoders] FocusManager
Thanks for replying John,
But no, I never use _root, nor _level.
I'm calling this from a clickHandler within my component's class.
Like this (pseudocode):
class Joystick extends UIComponent {
...
public function init() {
...
tabEnabled = true;
tabChildren = false;
...
}
private function onRelease() {
getFocusManager().setFocus(this);
}
}
2007/8/21, John laPlante [EMAIL PROTECTED]:
Are you using calling this relative to _root or _level0?
_root.focusManager.setFocus
Bart Wttewaall wrote:
Hi list,
I'm having trouble with the focusmanager. I created a Joystick
component that should be able to receive focus using the tab-key
(tabIndex) or by clicking it.
Since it extends UIComponent, implementing the tabIndex version is
easy; at init, set tabEnabled to true and tabChildren to false.
Now when the user clicks the component, it should also receive focus.
I've tried to call setFocus(this) or getFocusManager().setFocus(), but
the result is no focus, and worse, the joystick element with which you
control the component stops functioning as if the mouse is ignored.
Does anyone have an example or a good source about the FocusManager?
Thanks in advance.
Bart Wttewaall
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Re: [Flashcoders] Intro to OOP using ActionScript
I see it as something of a Math class (my degree is in math so bear with me). People aren't just going to be thrown into Calculus before at least learning algebra. There is some argument that teaching calculus sooner could be beneficial (i'm in that camp but theres a whole different set of issues there), but at the same time its hard to imagine learning calculus without at least having some concept of what infinite means. Same would go for OOP - you couldn't learn it without first knowing what function means. Sure you could teach it during the class, but why not get all of that out of the way along with other simpler concepts in a foundations class before actually brining OOP into the picture. Much the same way you are taught how to compute area, and limits, before being thrown into derivatives and integrals. -CD On 8/21/07, [p e r c e p t i c o n] [EMAIL PROTECTED] wrote: most college programming courses have prerequisites right? personally i know many programmers who don't have a background in programming who jumped right into oop...just looking at the code i can tell what they understand about programming let alone oop... my 0.02 pieces of lint p ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
Re: [Flashcoders] Intro to OOP using ActionScript
On Aug 21, 2007, at 3:54 PM, Ron Wheeler wrote: Lesson 2 How do you set/change a cats name? How do you create 2 cats with different names? Now they know about setters and getters and methods with parameters. Now you are *really* talking about encapsulation... since everyone knows that cats don't know their own names. -- Troy RPSystems, Ltd. http://www.rpsystems.net ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
Re: [Flashcoders] Intro to OOP using ActionScript
I don't think you need to call it procedural. Just call it the basic
building blocks that they will need for OOP (or procedural, for that
matter).
There's not that much difference, really, between OOP and procedural. OOP
just encapsulates chunks of procedural code and its data.
This is the correct answer. OOP probably isn't a bad framework in which
to teach these things, but when you start teaching you may be surprised
by how many students have a hard time grasping concepts that may seem
simple to you, even as simple as the relationship between a class and an
instance. You will also see students who blur through the work and get
bored five minutes after each class starts... but they aren't the ones
we're worried about.
So rather than engage in an argument as to whether OOP or procedural is
better, we're basically asking: Do the additional distractions of OOP
justify the payoff from learning it up front? If you're teaching fellow
geeks, then yes. If you're teaching people with a more casual interest
in programming, or (shudder) people who are required to take the class,
you may want to keep it script-simple. Compare:
var foo:Number = 1;
var bar:Number = 2;
trace(foo + bar);
vs.
class Cat
{
private var age:Number;
public function setAge(age:Number):Void {this.age = age;}
public function getAge():Number {return age;}
}
var whiskers:Cat = new Cat();
whiskers.setAge(1);
var patches:Cat = new Cat();
patches.setAge(2);
trace(whiskers.getAge() + patches.getAge());
Is it so unrealistic to suggest that the second example, while having a
pleasant real-world basis, involves many more steps and logical leaps
for an absolute beginner to understand?
Maybe this is a strawman... I guess you could start with how getters and
setters work in the first place, and use that to explain
functions/methods. It just seems like a bit too much drapery to start
out with.
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Re: [Flashcoders] Intro to OOP using ActionScript
Can you explain to me how a function is intrinsically simpler than a method? I have a feeling that there is a lot more mythology about OOP than there should be. 1) OOP uses the same compiler as spaghetti code. 2) OOP is written using procedural languages (the opposite of procedural is declarative) 3)OOP is based on some interesting theory and has a funny vocabulary but if you ignore all of these linguistic shortcuts and just explain what you mean, it is pretty simple. 4) OOP generally results in the average programmer producing code that is easier to debug and maintain that the average programmer used to be capable of doing. It is not a cure-all for stupidity or lazy thinking. It is just easier to spot and fix poorly written code. 5) OOP is a way to approach design; more beginning programmers (and experienced programmers) have trouble with design than coding. 6) OOP will not cure baldness but it will reduce the number of times you are pulling your hair out in frustration over a programming error. Ron chris duke wrote: I see it as something of a Math class (my degree is in math so bear with me). People aren't just going to be thrown into Calculus before at least learning algebra. There is some argument that teaching calculus sooner could be beneficial (i'm in that camp but theres a whole different set of issues there), but at the same time its hard to imagine learning calculus without at least having some concept of what infinite means. Same would go for OOP - you couldn't learn it without first knowing what function means. Sure you could teach it during the class, but why not get all of that out of the way along with other simpler concepts in a foundations class before actually brining OOP into the picture. Much the same way you are taught how to compute area, and limits, before being thrown into derivatives and integrals. -CD On 8/21/07, [p e r c e p t i c o n] [EMAIL PROTECTED] wrote: most college programming courses have prerequisites right? personally i know many programmers who don't have a background in programming who jumped right into oop...just looking at the code i can tell what they understand about programming let alone oop... my 0.02 pieces of lint p ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
Re: [Flashcoders] Intro to OOP using ActionScript
They do know their names. They are just not going to give you the satisfaction of coming just because you called them. That is what dogs were invented for. Ron Troy Rollins wrote: On Aug 21, 2007, at 3:54 PM, Ron Wheeler wrote: Lesson 2 How do you set/change a cats name? How do you create 2 cats with different names? Now they know about setters and getters and methods with parameters. Now you are *really* talking about encapsulation... since everyone knows that cats don't know their own names. -- Troy RPSystems, Ltd. http://www.rpsystems.net ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
[Flashcoders] H264/AAC live online ;)
http://www.ericd.net/2007/08/h264-playing-in-flash-player.html from Apple's trailer site. H264 with AAC. Nothing changed whatsoever and there it is ;) KICK ASS. - edolecki ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
Re: [Flashcoders] FocusManager
Go ahead and try that and I bet it will work.
Bart Wttewaall wrote:
Thanks for replying John,
But no, I never use _root, nor _level.
I'm calling this from a clickHandler within my component's class.
Like this (pseudocode):
class Joystick extends UIComponent {
...
public function init() {
...
tabEnabled = true;
tabChildren = false;
...
}
private function onRelease() {
getFocusManager().setFocus(this);
}
}
2007/8/21, John laPlante [EMAIL PROTECTED]:
Are you using calling this relative to _root or _level0?
_root.focusManager.setFocus
Bart Wttewaall wrote:
Hi list,
I'm having trouble with the focusmanager. I created a Joystick
component that should be able to receive focus using the tab-key
(tabIndex) or by clicking it.
Since it extends UIComponent, implementing the tabIndex version is
easy; at init, set tabEnabled to true and tabChildren to false.
Now when the user clicks the component, it should also receive focus.
I've tried to call setFocus(this) or getFocusManager().setFocus(), but
the result is no focus, and worse, the joystick element with which you
control the component stops functioning as if the mouse is ignored.
Does anyone have an example or a good source about the FocusManager?
Thanks in advance.
Bart Wttewaall
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Re: [Flashcoders] Intro to OOP using ActionScript
If you take somebody snowboarding and force them to learn how to do a 720 without teaching them anything else, they will eventually be able to do a 720. If you instead teach them all the basic moves, how to enter and exit tricks, and then move into 180s, 270s and 360s, they'll be much better at snowboarding in general and will naturally learn 720s soon after. You can't just teach somebody to snowboard without first teaching them how to ski. They need to get a feeling for the snow first, on two boards, learn how to use the lift and so on. But in terms of programming, I agree with Ron. OOP is more natural and closer to real life experiences. Mark On 8/21/07, Steven Sacks [EMAIL PROTECTED] wrote: Procedural isn't wrong. OOP isn't right. They're used for different purposes. The fact is, OOP is a trade off for flexibility and scalability over speed; speed in development, speed in execution. Procedural programming has its place (ask any game developer). Procedural programming is a necessary and important first step in learning how to code. It's the best way to learn how programming works because it's a simplified approach and won't get in the way of learning basic syntax. People with no programming experience will not understand abstract concepts like classes, inheritance, polymorphism, and encapsulation - the very things that make up OOP. OOP is a specialized dialect, built upon the basic language of programming. If you don't learn the basics, you can't truly learn the dialect. It's akin to learning phrases from a French phrase book and going to Paris on vacation versus learning how conjugation and verb tenses work combined with vocabulary. Who is going to be more successful at carrying on rudimentary conversations, or understanding what's being said to them? If we take two students and you teach them OOP for 1 month and I teach them procedural for two weeks and then OOP for two weeks, my student will be further along than your student. The reason is simple. When you learn the fundamentals first you have a greater capacity for understanding of more advanced topics. If you take somebody snowboarding and force them to learn how to do a 720 without teaching them anything else, they will eventually be able to do a 720. If you instead teach them all the basic moves, how to enter and exit tricks, and then move into 180s, 270s and 360s, they'll be much better at snowboarding in general and will naturally learn 720s soon after. Plus, if you sit down with non-programmers to teach them OOP, and you have to teach them the basics first, you will find yourself naturally teaching them procedural programming because every time you try to move into topics OOP, your students will get lost and you'll end up circling back to explain the basics again. OOP is not a beginner topic. ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
Re: [Flashcoders] Intro to OOP using ActionScript
Interesting point.
My counter would be that at the age of 14, these kids already have a
good understanding of foo+bar (and knowing to days kids fubar as well.)
I am not trying to teach them arithmetic. I am interested in showing
them how arithmetic is used in the context of programming to accomplish
something worthwhile like adding up the age of 2 cats.
Fortunately the + operation maps pretty well into the vocabulary of
arithmetic so I would not expect students shown either example to
flounder on the + sign.
I really want to teach them the right way to represent cats as things
inside a computer and to manipulate these abstractions as easily or more
easily than they can manipulate realworld cats. And to be able to extend
this same approach to dogs, credit cards, photographs, etc.
Ron
Alan MacDougall wrote:
I don't think you need to call it procedural. Just call it the basic
building blocks that they will need for OOP (or procedural, for that
matter).
There's not that much difference, really, between OOP and procedural.
OOP
just encapsulates chunks of procedural code and its data.
This is the correct answer. OOP probably isn't a bad framework in
which to teach these things, but when you start teaching you may be
surprised by how many students have a hard time grasping concepts that
may seem simple to you, even as simple as the relationship between a
class and an instance. You will also see students who blur through the
work and get bored five minutes after each class starts... but they
aren't the ones we're worried about.
So rather than engage in an argument as to whether OOP or procedural
is better, we're basically asking: Do the additional distractions of
OOP justify the payoff from learning it up front? If you're teaching
fellow geeks, then yes. If you're teaching people with a more casual
interest in programming, or (shudder) people who are required to take
the class, you may want to keep it script-simple. Compare:
var foo:Number = 1;
var bar:Number = 2;
trace(foo + bar);
vs.
class Cat
{
private var age:Number;
public function setAge(age:Number):Void {this.age = age;}
public function getAge():Number {return age;}
}
var whiskers:Cat = new Cat();
whiskers.setAge(1);
var patches:Cat = new Cat();
patches.setAge(2);
trace(whiskers.getAge() + patches.getAge());
Is it so unrealistic to suggest that the second example, while having
a pleasant real-world basis, involves many more steps and logical
leaps for an absolute beginner to understand?
Maybe this is a strawman... I guess you could start with how getters
and setters work in the first place, and use that to explain
functions/methods. It just seems like a bit too much drapery to start
out with.
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Re: [Flashcoders] Intro to OOP using ActionScript
T. Michael Keesey wrote: On 8/21/07, Steven Sacks [EMAIL PROTECTED] wrote: Object-oriented programming (OOP) is a programming paradigm that uses objects and their interactions to design applications and computer programs. It is based on several techniques, including inheritance, modularity, polymorphism, and encapsulation. OOP is based on the things you acknowledge are advanced topics. Ipso facto, OOP is advanced, right? ;) I think there's actually more agreement than disagreement here. Nobody is arguing that you should be teaching polymorphism on the second day, just that you can start to introduce objects at an early stage. I mean, if you can start with: x = 500; trace(x); ... you could certainly also start with: myShape.x = 500; I hope that you meant myshape.setX(500); The core basics of OOP--using fields and methods--are not that far beyond the core basics of programming--using variables and functions. Of course inheritance, polymorphism, encapsulation, etc. come much later, and design patterns even later. No one would dispute that, I think. ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
Re: [Flashcoders] save swf
Uncompressed, yeah, that'd be ugly. But how does something like the following (guesswork code) perform? foo:BitmapData = new BitmapData() ; /* put your image data in there, with whatever method */ bar:ByteArray = foo.getPixels(myImageRect) ; var.compress() ; Again, mostly asking because I don't know enough about AS3/FP9. It's supposed to be using zlib compression on the ByteArray but for all I know it's still doesn't compress enough or quickly enough to be useful. I'm totally leaving out the question of conversion after post or Socket or whatever used server side to get the job done, but I have to assume it wouldn't be difficult using GD or ImageMagic. Anyone used this? On 8/21/07, Alan MacDougall [EMAIL PROTECTED] wrote: Jer Brand wrote: Coming from someone who's never done this, and doesn't know if it's possible, but: Would it be possible to capture your user created design in BitmapData (I was fairly sure there's a method to extract pixel info from a MovieClip, correct?) then transmit that back to the server and use PHP and the image libs to create a bitmap image? Again, complete shot in the dark here.. I'm not even sure if the BD produced by Flash is usable by any graphics library, PHP or otherwise. Yes, technically, but transmitting that much bitmap data from Flash to the server, pixel by pixel, takes a great deal of time and bandwidth. I strongly recommend against the attempt. ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
RE: [Flashcoders] Intro to OOP using ActionScript
Troy Rollins wrote: since everyone knows that cats don't know their own names. Unless you believe e. e. cummings ^_^ Cordially, Kerry Thompson ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
RE: [Flashcoders] Intro to OOP using ActionScript
What kind of argument is that? I've never learned to ski and I was able to pick up snowboarding. One is not dependant upon the other. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Mark Winterhalder Sent: Tuesday, August 21, 2007 4:41 PM To: flashcoders@chattyfig.figleaf.com Subject: Re: [Flashcoders] Intro to OOP using ActionScript If you take somebody snowboarding and force them to learn how to do a 720 without teaching them anything else, they will eventually be able to do a 720. If you instead teach them all the basic moves, how to enter and exit tricks, and then move into 180s, 270s and 360s, they'll be much better at snowboarding in general and will naturally learn 720s soon after. You can't just teach somebody to snowboard without first teaching them how to ski. They need to get a feeling for the snow first, on two boards, learn how to use the lift and so on. But in terms of programming, I agree with Ron. OOP is more natural and closer to real life experiences. Mark On 8/21/07, Steven Sacks [EMAIL PROTECTED] wrote: Procedural isn't wrong. OOP isn't right. They're used for different purposes. The fact is, OOP is a trade off for flexibility and scalability over speed; speed in development, speed in execution. Procedural programming has its place (ask any game developer). Procedural programming is a necessary and important first step in learning how to code. It's the best way to learn how programming works because it's a simplified approach and won't get in the way of learning basic syntax. People with no programming experience will not understand abstract concepts like classes, inheritance, polymorphism, and encapsulation - the very things that make up OOP. OOP is a specialized dialect, built upon the basic language of programming. If you don't learn the basics, you can't truly learn the dialect. It's akin to learning phrases from a French phrase book and going to Paris on vacation versus learning how conjugation and verb tenses work combined with vocabulary. Who is going to be more successful at carrying on rudimentary conversations, or understanding what's being said to them? If we take two students and you teach them OOP for 1 month and I teach them procedural for two weeks and then OOP for two weeks, my student will be further along than your student. The reason is simple. When you learn the fundamentals first you have a greater capacity for understanding of more advanced topics. If you take somebody snowboarding and force them to learn how to do a 720 without teaching them anything else, they will eventually be able to do a 720. If you instead teach them all the basic moves, how to enter and exit tricks, and then move into 180s, 270s and 360s, they'll be much better at snowboarding in general and will naturally learn 720s soon after. Plus, if you sit down with non-programmers to teach them OOP, and you have to teach them the basics first, you will find yourself naturally teaching them procedural programming because every time you try to move into topics OOP, your students will get lost and you'll end up circling back to explain the basics again. OOP is not a beginner topic. ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
RE: [Flashcoders] Intro to OOP using ActionScript
Mark Winterhalder wrote: You can't just teach somebody to snowboard without first teaching them how to ski. Ooh, that's going to get a reaction from the boarders. I'm going to go wax my skis and stay out of this one ^_^ Cordially, Kerry Thompson ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
RE: [Flashcoders] Intro to OOP using ActionScript
Ron Wheeler wrote: Alan MacDougall wrote: I don't think you need to call it procedural. Just call it the basic building blocks that they will need for OOP (or procedural, for that matter). There's not that much difference, really, between OOP and procedural. OOP Actually, that's what Kerry Thompson wrote. Alan was quoting me. Cordially, Kerry Thompson ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
Re: [Flashcoders] Intro to OOP using ActionScript
.I do not believe that starting people out doing things the wrong way is ever a good start. Teach OOP from the day one. Not as a name or a theory but as a normal way to program. Right on Ron. Dave - Head Developer http://www.blurredistinction.com Adobe Community Expert http://www.adobe.com/communities/experts/ ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
Re: [Flashcoders] Intro to OOP using ActionScript
Of course inheritance, polymorphism, encapsulation, etc. come much later, and design patterns even later. No one would dispute that, I think. I'd disagree a little. Encapsulation especially, is a really simple concept. It's about organization and teaching students to stay organize - ie to keep cats in one class and dogs in another is not advanced - no more so than having them build a function that can be reused. Lots of programmers never need design patterns as they don't help much unless your architecting large apps, and lots of Flash programmers aren't developing those kinds of apps. Keeping your code organized however should be taught from day one and certain oop concepts are perfect for that. It's pretty awesome to show students something like a utility class that might store a url for a php script - and use that script in a bunch of movies... then show them how one simple change in the class affects every movie. This is the kind of thing they will appreciate and make use of. Newbies figure out templates in Dreamweaver... sticking code in a class is about the same. I typically use a combination of OOP and procedural - keeping code pertinent to a given movie in that movie if it makes sense, while using classes to store code I use in multiple movies. I usually find it pretty awkward to try and objectify an entire project - it just doesn't help. I find the combo works quite well for me - and besides, it's still all oop if you think about it... Dave - Head Developer http://www.blurredistinction.com Adobe Community Expert http://www.adobe.com/communities/experts/ ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
RE: [Flashcoders] Intro to OOP using ActionScript
You can't just teach somebody to snowboard without first teaching them how to ski. Ooh, that's going to get a reaction from the boarders. I'm going to go wax my skis and stay out of this one ^_^ Aaand now, this thread is completely OT. Please keep to the thread topic or don't respond. Thanks! Dave Watts, CTO, Fig Leaf Software http://www.figleaf.com/ Fig Leaf Software provides the highest caliber vendor-authorized instruction at our training centers in Washington DC, Atlanta, Chicago, Baltimore, Northern Virginia, or on-site at your location. Visit http://training.figleaf.com/ for more information! ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
Re: [Flashcoders] Intro to OOP using ActionScript
On 8/21/07, Ron Wheeler [EMAIL PROTECTED] wrote: myShape.x = 500; I hope that you meant myshape.setX(500); Huh? No, that's not part of the flash.display.Shape API. And while it's true that x in this context is actually not a true field, but a pair of methods (__get__x and __set__x, not getX and setX) disguised as a field, I think you can safely ignore that in an introductory class. -- Mike Keesey ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
[Flashcoders] acrobat detector
Hi, Is there a way I can detect if Acrobat is installed on the host computer, when I run a projector / .exe (I create the exe from swf with Zinc) from DVD? I know there are ways to use mdm script (Zinc's own, but is there a way of doing this from within Flash? Are there any issues (like, it only works on Win XP, not on Win2K, Win 98 etc, or only for certain versions of Acrobat), and is it possible? Thanks, Nik C ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
[Flashcoders] New Beta video probs on OSX
Hey all, Very happy to see the new release. H.264. Oh yah. I know it's really soon, but has anyone else had problems with the new beta build? In particular, I'm experiencing audio artifacts and sync slipping on OSX. Happens in both in Firefox (2.0.0.6) Safari. Also, the new beta resolves the wmode opaque transparent vs. FullScreen problem (good). Unfortunately, in some cases with Firefox, the swf may disappear when exiting fullscreen mode (bad). Actions such as resizing the browser and pulling up the context menu will restore it. -radley ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
Re: [Flashcoders] save swf
Jer Brand wrote: Uncompressed, yeah, that'd be ugly. But how does something like the following (guesswork code) perform? foo:BitmapData = new BitmapData() ; /* put your image data in there, with whatever method */ bar:ByteArray = foo.getPixels(myImageRect) ; var.compress() ; Again, mostly asking because I don't know enough about AS3/FP9. It's supposed to be using zlib compression on the ByteArray but for all I know it's still doesn't compress enough or quickly enough to be useful. I'm totally leaving out the question of conversion after post or Socket or whatever used server side to get the job done, but I have to assume it wouldn't be difficult using GD or ImageMagic. Well, it might be easier in Actionscript 3.0. I know that in 2.0 it was a major pain, even with gzip compression... I know Grant Skinner got it working, you might want to check out this blog entry: http://www.gskinner.com/blog/archives/2006/03/saving_bitmapda.html ... and this attempted util: http://www.quasimondo.com/archives/000572.php I've researched this problem before, and came to the conclusion that it was a last resort at best. But try out Klingermann's demo on Quasimondo and see how fast it runs for you. On some computers or connections it is very slow indeed. You may be able to optimize it, though -- if you try and succeed, please give back by posting it somewhere or open-sourcing it on a well-known site like osflash.org. If you aren't discouraged after all I've said, I wish you luck! ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
Re: [Flashcoders] Intro to OOP using ActionScript: patterns derail!
Dave Mennenoh wrote: Lots of programmers never need design patterns as they don't help much unless your architecting large apps, and lots of Flash programmers aren't developing those kinds of apps. Keeping your code organized however should be taught from day one and certain oop concepts are perfect for that. There are plenty of patterns that can apply well to small-scale projects: take undo. How would you cleanly support undo without Command? Other patterns like State, Adapter, Observer (especially to overcome the sadistic limitations of Flash's single callbacks -- MovieClip -- or single listeners -- MovieClipLoader)... all have uses even in a sporty little website tchotchke. Not every 'design pattern' is something like MVC or data mapping or dynamically-configured factories. On the other hand, I got your point. ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
Re: [Flashcoders] Intro to OOP using ActionScript
On 8/21/07, David Ngo [EMAIL PROTECTED] wrote: What kind of argument is that? I've never learned to ski and I was able to pick up snowboarding. One is not dependant upon the other. Sigh... I guess I should know better than attempting irony in an email. Of course you can learn how to snowboard without first learning how to ski. It's even easier. To claim otherwise would be silly. I think with OOP it's the same thing. Mark ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
Re: [Flashcoders] Intro to OOP using ActionScript
That is the problem when you have to use someone's API and it does not follow standards. They probably wrote it before we know the right way to do getters and setters - or they never bothered to read up on the state of the art in programming. Ron T. Michael Keesey wrote: On 8/21/07, Ron Wheeler [EMAIL PROTECTED] wrote: myShape.x = 500; I hope that you meant myshape.setX(500); Huh? No, that's not part of the flash.display.Shape API. And while it's true that x in this context is actually not a true field, but a pair of methods (__get__x and __set__x, not getX and setX) disguised as a field, I think you can safely ignore that in an introductory class. ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
Re: [Flashcoders] Intro to OOP using ActionScript
On 8/21/07, Ron Wheeler [EMAIL PROTECTED] wrote: T. Michael Keesey wrote: On 8/21/07, Ron Wheeler [EMAIL PROTECTED] wrote: myShape.x = 500; I hope that you meant myshape.setX(500); Huh? No, that's not part of the flash.display.Shape API. And while it's true that x in this context is actually not a true field, but a pair of methods (__get__x and __set__x, not getX and setX) disguised as a field, I think you can safely ignore that in an introductory class. That is the problem when you have to use someone's API and it does not follow standards. They probably wrote it before we know the right way to do getters and setters - or they never bothered to read up on the state of the art in programming. Uh, you do realize that is Adobe's own API, right? http://livedocs.adobe.com/flex/2/langref/flash/display/Shape.html#propertySummary That is the proper way to do getters and setters in ActionScript (2.0 and 3.0). This isn't Java. -- T. Michael Keesey Director of Technology Exopolis, Inc. 2894 Rowena Avenue Ste. B Los Angeles, California 90039 ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
Re: [Flashcoders] Intro to OOP using ActionScript: patterns derail!
Alan MacDougall wrote: Dave Mennenoh wrote: Lots of programmers never need design patterns as they don't help much unless your architecting large apps, and lots of Flash programmers aren't developing those kinds of apps. Keeping your code organized however should be taught from day one and certain oop concepts are perfect for that. There are plenty of patterns that can apply well to small-scale projects: take undo. How would you cleanly support undo without Command? Other patterns like State, Adapter, Observer (especially to overcome the sadistic limitations of Flash's single callbacks -- MovieClip -- or single listeners -- MovieClipLoader)... all have uses even in a sporty little website tchotchke. Not every 'design pattern' is something like MVC or data mapping or dynamically-configured factories. On the other hand, I got your point. Design patterns are not some esoteric way of doing things. They are solutions to common programming situations that came up over and over again. For years, we all wrote our own way to accomplish these tasks. Finally some experienced guys looked at what they were doing and what other people were doing. They had a Holy Sh*t moment when they realized that they had 50 ways to do exactly the same thing. They looked at the various ways and tried to pick the best strategy. A design pattern book is not a road map to building an application. It is a collection of best practices for the tasks that come up all the time. It hard to imagine even a small program that could not use at least one of the design patterns that have been identified. It is hard to imagine a Flash program that would not be a candidate for several design patterns. A game with no Listener/Observer is hard to imagine. (How many onEnterFrames does it take to kill a program? ) How do you handle onLoad's famous scope? There is a design pattern for this and it gets explained every time a new flashcoder tries to read an XML file. You can probably find this in the archives once every 2 weeks. They do not call it a Design Pattern but it is. If you doubt the usefulness of Design Patterns, read Head First Design Patterns. You will read each section and sometimes be amazed at the simplicity of the solution and wonder why you never figured this out. In other sections you will say What is the big deal? I do it like this all the time. It is not magic or advanced. If a pattern was shown to a new programmer without giving it a fancy name, they would just accept it as the best way to do the task and would never give it moment's thought. If you were trying to get the class to build a game, you would be foolish not to explain the Observer pattern. It is very simple and the alternatives are often really ugly and overly complex and frustrate the best of us. Ron ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
Re: [Flashcoders] Intro to OOP using ActionScript
T. Michael Keesey wrote: On 8/21/07, Ron Wheeler [EMAIL PROTECTED] wrote: T. Michael Keesey wrote: On 8/21/07, Ron Wheeler [EMAIL PROTECTED] wrote: myShape.x = 500; I hope that you meant myshape.setX(500); Huh? No, that's not part of the flash.display.Shape API. And while it's true that x in this context is actually not a true field, but a pair of methods (__get__x and __set__x, not getX and setX) disguised as a field, I think you can safely ignore that in an introductory class. That is the problem when you have to use someone's API and it does not follow standards. They probably wrote it before we know the right way to do getters and setters - or they never bothered to read up on the state of the art in programming. Uh, you do realize that is Adobe's own API, right? I have been building RIAs in Flash since AS1. I am under no illusions about Macromedia. They wrote AS1without reading ECMA spec or even looking at Java. We were using Eclipse and talking about in this forum, 2 years before Macromedia adopted it. The lack of standardization in the old components and Classes is not something to emulate or teach as a good model. To be fair, they have really got a lot better once they realized that there is a strong community that uses Flash for building real applications that have to be robust and maintainable in the real world. Ron http://livedocs.adobe.com/flex/2/langref/flash/display/Shape.html#propertySummary That is the proper way to do getters and setters in ActionScript (2.0 and 3.0). This isn't Java. ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
Re: [Flashcoders] save swf
There are JPEG en PNG encoder classes for AS3 http://code.google.com/p/as3corelib/ http://as3corelib.googlecode.com/svn/trunk/src/com/adobe/images/ regards, Muzak - Original Message - From: Jer Brand [EMAIL PROTECTED] To: flashcoders@chattyfig.figleaf.com Sent: Tuesday, August 21, 2007 10:49 PM Subject: Re: [Flashcoders] save swf Uncompressed, yeah, that'd be ugly. But how does something like the following (guesswork code) perform? foo:BitmapData = new BitmapData() ; /* put your image data in there, with whatever method */ bar:ByteArray = foo.getPixels(myImageRect) ; var.compress() ; Again, mostly asking because I don't know enough about AS3/FP9. It's supposed to be using zlib compression on the ByteArray but for all I know it's still doesn't compress enough or quickly enough to be useful. I'm totally leaving out the question of conversion after post or Socket or whatever used server side to get the job done, but I have to assume it wouldn't be difficult using GD or ImageMagic. Anyone used this? ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
Re: [Flashcoders] New Beta video probs on OSX
http://www.adobe.com/cfusion/mmform/index.cfm?name=fp_beta_feedback - Original Message - From: Radley Marx [EMAIL PROTECTED] To: flashcoders@chattyfig.figleaf.com Sent: Wednesday, August 22, 2007 1:00 AM Subject: [Flashcoders] New Beta video probs on OSX Hey all, Very happy to see the new release. H.264. Oh yah. I know it's really soon, but has anyone else had problems with the new beta build? In particular, I'm experiencing audio artifacts and sync slipping on OSX. Happens in both in Firefox (2.0.0.6) Safari. Also, the new beta resolves the wmode opaque transparent vs. FullScreen problem (good). Unfortunately, in some cases with Firefox, the swf may disappear when exiting fullscreen mode (bad). Actions such as resizing the browser and pulling up the context menu will restore it. -radley ___ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
