Alternative To A Specific Switch Statement

[david j downs]

This is probably a hold-over from my formative years programming a
64KB Atari, but I try to reduce the number of variables used, if
possible.  This is situationally dependent, of course, and may not
work in all instances.  That's why I really like Alex's offering.  It
is elegant, minimizes conditional statements, and uses only one
variable.


On Thu, Mar 14, 2013 at 1:06 PM, Alex Tweedly <alex at tweedly.net> wrote:
>
> I have to agree it's pretty readable right now.
>
> If you *really* want a shorter, less readable, way, try ....
>
> put sin(pAngleInRadians) into tX
> if tX <> 0 then divide tX by abs(tX)
>
> -- Alex.
>
>
> On 14/03/2013 17:56, dunbarx at aol.com wrote:
>>
>> Hi.
>>
>>
>> This is a pretty tight switch construct, of a typical form. And very
>> readable. What makes you feel it ought to be tightened?
>>
>>
>> Craig Newman
>>
>>
>>
>>
>>
>> -----Original Message-----
>> From: Ender Nafi Elekçioğ
>>   lu <endernafi at gmail.com>
>> To: List LiveCode <use-livecode at lists.runrev.com>
>> Sent: Thu, Mar 14, 2013 1:37 pm
>> Subject: Alternative To A Specific Switch Statement
>>
>>
>> Hello Dear LiveCode Gurus,
>>
>>
>>
>> Here is a little code snippet:
>>
>> __switch
>> ____case sin(pAngleInRadians) > 0
>> ______put 1 into tX
>> ______break
>> ____case sin(pAngleInRadians) = 0
>> ______put 0 into tX
>> ______break
>> ____case sin(pAngleInRadians) < 0
>> ______put -1 into tX
>> ______break
>> __end switch
>>
>> It's for a complex rotation command.
>> Is there a more elegant way to achieve the same result with built-in
>> functions?
>> I mean, something like a combination of abs(), max() and/or round()?
>> Just an intellectual curiosity :)
>>
>> Thanks for any insights...
>>
>>
>> Best,
>>
>> ~ Ender Nafi
>>
>>
>>
>> ~ ·   together, we're smarter  · ~
>>
>> ~ ·  Keehuna Studio
>> ~ ·  Sorcerers of Design
>>
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>
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