Re: [Flashcoders] AS3 - Button follow cursor within image area
Thanks for the tip Ashim! :-))
On 6/25/08 5:01 AM, Ashim D'Silva [EMAIL PROTECTED] wrote:
You can also disable the button and use the image itself as a button.
On click on the image, the event will feed you local mouse coords
which will tell you which side of the image the mouse is on.
Layered buttons are a bit troublesome, but there's workarounds.
2008/6/25 Vayu Robins [EMAIL PROTECTED]:
I think I have found a solution to my problem. Dont know if its the best,
but instead of adding a listener to the image, I added a listener to the
stage and found the coordinates and width of image and made my buttons
visible when inside these coordinates.
Cordially
Vayu
On 6/24/08 7:27 PM, Vayu Robins [EMAIL PROTECTED] wrote:
Hi coders.
I have an issue I cant seem to find a solution to.
I have an image gallery with invisble next and previous buttons. When the
mouse is over the left side of the image, the left button becomes visible
and follows the mouse. So far so good. :-) The problem is that when the
button is under the mouse the button only moves when the mouse has moved
away from the button, which creates a very jagged movement. Furthermore,
this can be solved if I set prevImg.mouseEnabled = false, but then I disable
the button.
So the cursor needs to know when its over the image, even when the button is
between the mouse and the image.
Heres code I use:
private function navigationMove(event:Event):void{
var target = event.target;
var location:Point = new Point(target.mouseX, target.mouseY);
location = target.localToGlobal(location);
if(event.target.mouseX 278) {
prevImg.visible = true;
nextImg.visible = false;
prevImg.x = location.x;
prevImg.y = location.y;
}else{
prevImg.visible = false;
nextImg.visible = true;
nextImg.x = location.x;
nextImg.y = location.y;
}
}
I hope someone can help me on this one.
Thanks
Vayu
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Re: [Flashcoders] as2 - method losing scope when called from timeline.
AS2 is full of mysterious crap, er bugs like this. It's what made Flash such a pain at times. I am s loving AS3... not that it's without it's own quirks... ___ Joseph Balderson, Flash Platform Developer | http://joeflash.ca Steven Sacks wrote: It's a rare bug that is unacknowledged by Macromedia/Adobe. If you name the package folder that contains your class the same as your class name (case doesn't matter), AS2 will behave like a dumbass. It does randomly buggy behavior, and it's impossible to track down what it is because there's nothing wrong with your code, it's AS2 being buggy. Once you rename your package or class, everything works as it should. ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
Re: [Flashcoders] calling public static methods on Class using getDefinitionByName
On a related note, I noticed this syntax in Flash help this morning: var componentClass:Class = e.target.selectedItem.data as Class; var styles:Object = componentClass[getStyleDefinition].call(this); On Tue, Jun 24, 2008 at 8:27 PM, Patrick Matte | BLITZ [EMAIL PROTECTED] wrote: Ah ok, the reason it wasn't working was that I was casting ClassReference as Class instead of Object... Now this works. var ClassReference:Object = getDefinitionByName(Test) as Object; var bool:Boolean = ClassReference.parse(false); //would return false; BLITZ | Patrick Matte - 310-551-0200 x214 -Original Message- From: [EMAIL PROTECTED] [mailto: [EMAIL PROTECTED] On Behalf Of Wagner Amaral Sent: Tuesday, June 24, 2008 7:18 AM To: Flash Coders List Subject: Re: [Flashcoders] calling public static methods on Class using getDefinitionByName On Tue, Jun 24, 2008 at 6:14 AM, Kenneth Kawamoto [EMAIL PROTECTED] wrote: trace(getDefinitionByName(Test).parse(false)); Nice Then maybe this works too (no compiler available right now, so just guessing): var c:Class = getDefinitionByName(Test) as Class; (c as Object).parse(false); ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders -- -jonathan howe :: 404.434.2321 :: 180 High St Apt 26 Portland, ME 04101 ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
[Flashcoders] FLV ending prematurely in FLVPlayback component
Hi, I am using the FLVPlayback component to serve videos. Users with a slow connection are getting the FLV stopping midway through. I've done some testing and it seems the player thinks the FLV has finished, which it hasn't. This is happening across multiple FLV's. I've tried encoding with no audio. Any ideas? cheers, MaTT ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
[Flashcoders] switch statement more efficient than if...else?
Hi guys quick question that came up in a conversation I had the other day - are switch statements more or less efficient than a series of if...else statements in either AS2 or AS3? I'd always thought that the most efficient was the switch al.z ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
Re: [Flashcoders] switch statement more efficient than if...else?
- Original Message - From: Allandt Bik-Elliott (Receptacle) [EMAIL PROTECTED] To: flashcoders flashcoders@chattyfig.figleaf.com Sent: Wednesday, June 25, 2008 3:12 PM Subject: [Flashcoders] switch statement more efficient than if...else? Hi guys quick question that came up in a conversation I had the other day - are switch statements more or less efficient than a series of if...else statements in either AS2 or AS3? I'd always thought that the most efficient was the switch I doubt that there's anything in it - the compiler writes your if statement for you with a switch statement. It would be better to be more concerned about readability and maintainability, where the switch statement will win hands down for many cases.. ;-) Paul al.z ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
Re: [Flashcoders] FLV ending prematurely in FLVPlayback component
Try using the FLV Metadata Injector into your FLVs http://www.buraks.com/flvmdi/ The problem may be caused by incorrect (ie, rounded down duration value) or corrupted metadata on the FLV. Matt Muller wrote: Hi, I am using the FLVPlayback component to serve videos. Users with a slow connection are getting the FLV stopping midway through. I've done some testing and it seems the player thinks the FLV has finished, which it hasn't. This is happening across multiple FLV's. I've tried encoding with no audio. Any ideas? cheers, MaTT ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
Re: [Flashcoders] switch statement more efficient than if...else?
Switch/case is a bit quicker. On Wed, Jun 25, 2008 at 10:12 AM, Allandt Bik-Elliott (Receptacle) [EMAIL PROTECTED] wrote: Hi guys quick question that came up in a conversation I had the other day - are switch statements more or less efficient than a series of if...else statements in either AS2 or AS3? I'd always thought that the most efficient was the switch al.z ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
Re: [Flashcoders] switch statement more efficient than if...else?
One thing worth noting is switch statement uses strict equality (===) therefore it's not exactly the same as if/else with equality (==). Kenneth Kawamoto http://www.materiaprima.co.uk/ Paul Andrews wrote: Hi guys quick question that came up in a conversation I had the other day - are switch statements more or less efficient than a series of if...else statements in either AS2 or AS3? I'd always thought that the most efficient was the switch I doubt that there's anything in it - the compiler writes your if statement for you with a switch statement. It would be better to be more concerned about readability and maintainability, where the switch statement will win hands down for many cases.. ;-) Paul al.z ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
Re: [Flashcoders] switch statement more efficient than if...else?
I doubt there's a noticeable difference between a switch and a series of if /else if statements. In AS 3.0 bytecode, though, switches and equivalent conditionals are not necessarily compiled into the same bytecode. In fact, there's a lookupswitch instruction (opcode 0x1b). Of course, any switch can be implemented as a series of if / else if statements, but that's up to the compiler. From my (limited) experience, the Flash IDE always uses a switch bytecode whenever it finds a switch construct in Actionscript code. I don't know how it affects runtime performance, but my guess is that it doesn't have much impact. And, thinking about it, maybe that opcode exists because it's an optimized way to compile / execute a series of related conditions. Cheers Juan Pablo Califano 2008/6/25, eric e. dolecki [EMAIL PROTECTED]: Switch/case is a bit quicker. On Wed, Jun 25, 2008 at 10:12 AM, Allandt Bik-Elliott (Receptacle) [EMAIL PROTECTED] wrote: Hi guys quick question that came up in a conversation I had the other day - are switch statements more or less efficient than a series of if...else statements in either AS2 or AS3? I'd always thought that the most efficient was the switch al.z ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
Re: [Flashcoders] switch statement more efficient than if...else?
hey thanks for all of your responses al.z On 25 Jun 2008, at 16:24, Juan Pablo Califano wrote: I doubt there's a noticeable difference between a switch and a series of if /else if statements. In AS 3.0 bytecode, though, switches and equivalent conditionals are not necessarily compiled into the same bytecode. In fact, there's a lookupswitch instruction (opcode 0x1b). Of course, any switch can be implemented as a series of if / else if statements, but that's up to the compiler. From my (limited) experience, the Flash IDE always uses a switch bytecode whenever it finds a switch construct in Actionscript code. I don't know how it affects runtime performance, but my guess is that it doesn't have much impact. And, thinking about it, maybe that opcode exists because it's an optimized way to compile / execute a series of related conditions. Cheers Juan Pablo Califano 2008/6/25, eric e. dolecki [EMAIL PROTECTED]: Switch/case is a bit quicker. On Wed, Jun 25, 2008 at 10:12 AM, Allandt Bik-Elliott (Receptacle) [EMAIL PROTECTED] wrote: Hi guys quick question that came up in a conversation I had the other day - are switch statements more or less efficient than a series of if...else statements in either AS2 or AS3? I'd always thought that the most efficient was the switch al.z ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
Re: [Flashcoders] switch statement more efficient than if...else?
I'd always thought that the most efficient was the switch I know that the haXe compiler uses a jump table, I'm not sure about the AS3 compiler. But as already mentioned there is an extra opcode for switch, and even if the compiler doesn't a jump table, it might use one in the future. So, switch at least isn't slower, even if it isn't faster yet it has the potential to become faster in the future, and it's more readable in any case -- making switch the preferable choice. The question should be is switch on int faster than switch on String? Mark On Wed, Jun 25, 2008 at 4:12 PM, Allandt Bik-Elliott (Receptacle) [EMAIL PROTECTED] wrote: Hi guys quick question that came up in a conversation I had the other day - are switch statements more or less efficient than a series of if...else statements in either AS2 or AS3? I'd always thought that the most efficient was the switch al.z ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
Re: [Flashcoders] switch statement more efficient than if...else?
Actually, tt is my (perhaps wrong) understanding that this is not the case. In the past, both Macromedia and Adobe sources have stated that switch does not offer a performance boost--just readability and functionality (optional break lines) enhancements over if statements. I have been wrong many times, however. This may be such a case. On 6/25/08 10:48 AM, eric e. dolecki wrote: Switch/case is a bit quicker. Rich http://www.LearningActionScript3.com ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
Re: [Flashcoders] switch statement more efficient than if...else?
and switch on Number ? :P I read somewhere that Number was quicker than int though I still can't believe it cedric I'd always thought that the most efficient was the switch I know that the haXe compiler uses a jump table, I'm not sure about the AS3 compiler. But as already mentioned there is an extra opcode for switch, and even if the compiler doesn't a jump table, it might use one in the future. So, switch at least isn't slower, even if it isn't faster yet it has the potential to become faster in the future, and it's more readable in any case -- making switch the preferable choice. The question should be is switch on int faster than switch on String? Mark On Wed, Jun 25, 2008 at 4:12 PM, Allandt Bik-Elliott (Receptacle) [EMAIL PROTECTED] wrote: Hi guys quick question that came up in a conversation I had the other day - are switch statements more or less efficient than a series of if...else statements in either AS2 or AS3? I'd always thought that the most efficient was the switch al.z ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
[Flashcoders] SWF file size differences
Wonder if anyone else has come across this problem. It's definitely weird and to me it looks like a bug. I have a simple fla file. I publish on a Mac and a PC (both with Flash CS3, AS3, Flash Player 9). The resulting SWF is way bigger on the PC (7KB vs 2KB on the Mac) despite the fla being the exact same file. When looking at the file size reports of both systems, there are considerable differences in the Font Bytes and Frame Bytes Columns. Any ideas? Cheers, .:Manuel ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
[Flashcoders] Firefox 3 and flash 8 wmode problem
Has anybody else been experiencing problems with flash player 8 using wmode with Firefox 3? Can't click on any of the flash buttons, using flash player 8 r42. No problem with Firefox 2. ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
Re: [Flashcoders] switch statement more efficient than if...else?
I disagree that switch statements are more readable than if else
statements, at least if you put your braces on their own lines.
if (true)
{
// something
}
else if (true)
{
// something else
}
else if (true)
{
// yet another outcome
}
I don't think either is more readable than the other, unless you write
your if else or switch statements poorly (no whitespace).
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RE: [Flashcoders] switch statement more efficient than if...else?
I disagree that switch statements are more readable than if
else statements, at least if you put your braces on their own lines.
I wouldn't disagree, but I think it's more about personal preference.
Maybe it's just aesthetics, but I prefer:
switch(b)
{
case apple:
do something
break;
case bananas:
do something else
break;
case pears:
do yet something else
break;
}
(or the same thing above but with brackets)
over:
if (b==apple)
{
do something
}
else if (b==bananas)
{
do something else
}
else if (b==pears)
{
do yet something else
}
Jason Merrill
Bank of America
Global Technology Operations Global Risk LLD
eTools Multimedia
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RE: [Flashcoders] switch statement more efficient than if...else?
Steven Sacks wrote: I disagree that switch statements are more readable than if else statements, at least if you put your braces on their own lines. I'm a die-hard switch/case guy, but I agree with Steven on this. Neither is inherently easier or harder to read. Of course, I personally prefer switch statements, but I think it's a matter of style. Steven's example is every bit as readable as a switch statement. Also, with switch statements, you have to be careful about nesting switch statements. I've seen switch statements with nested switches that are 3-4 pages long. There has to be a better way to write code than that. Cordially, Kerry Thompson ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
Re: [Flashcoders] switch statement more efficient than if...else?
better way than nested switches that are 3-4 pages long = if/else statements ;) On Wed, Jun 25, 2008 at 11:25 PM, Kerry Thompson [EMAIL PROTECTED] wrote: Steven Sacks wrote: I disagree that switch statements are more readable than if else statements, at least if you put your braces on their own lines. I'm a die-hard switch/case guy, but I agree with Steven on this. Neither is inherently easier or harder to read. Of course, I personally prefer switch statements, but I think it's a matter of style. Steven's example is every bit as readable as a switch statement. Also, with switch statements, you have to be careful about nesting switch statements. I've seen switch statements with nested switches that are 3-4 pages long. There has to be a better way to write code than that. Cordially, Kerry Thompson ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
Re: [Flashcoders] switch statement more efficient than if...else?
One thing that nobody who writes switch statements seemed to know (me
included) is you can (and, apparently, should) write them like this:
switch (n)
{
case 0:
{
foo();
break;
}
case 1:
{
bar();
return;
}
case 2:
{
baz();
return;
}
default:
{
blech();
break;
}
}
I definitely find that more readable than the old way.
http://opensource.adobe.com/wiki/display/flexsdk/Coding+Conventions
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