From: Morton Goldberg <m_goldberg@...>
Date: 2006-12-05T07:43:55+09:00
Subject: Re: [QUIZ] Turtle Graphics (#104) [SOLUTION]

On Dec 4, 2006, at 2:20 PM, Paul Lutus wrote:

> 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

Good catch. I had forgotten that %= existed.

Regards, Morton