From: Paul Lutus <nospam@...>
Date: 2006-12-05T04:20:05+09:00
Subject: Re: [QUIZ] Turtle Graphics (#104) [SOLUTION]

Morton Goldberg wrote:

/ ...

>        case
>        when @heading >= 360.0
>           @heading -= 360.0 while @heading >= 360.0

@heading %= 360

>        when @heading < 0.0
>           @heading += 360.0 while @heading < 0.0

@heading %= 360 # same solution

In fact, now that I think about it, the entire block:

       case
       when @heading >= 360.0
          @heading -= 360.0 while @heading >= 360.0
       when @heading < 0.0
          @heading += 360.0 while @heading < 0.0
       end

can be replaced with:

@heading %= 360

For a net improvement in execution speed and readability.

I hope this doesn't come off as golfing, apparently a popular pastime here.

-- 
Paul Lutus
http://www.arachnoid.com