From: Robert Klemme <bob.news@...>
Date: 2003-12-03T21:07:05+09:00
Subject: Re: New to ruby--trouble with initializing arrays


"Van Jacques" <vanjac12@yahoo.com> schrieb im Newsbeitrag
news:70ae81fd.0312021355.67a1f746@posting.google.com...
> "Robert Klemme" <bob.news@gmx.net> wrote in message
news:<bqffva$22171v$1@ID-52924.news.uni-berlin.de>...
> > >
> > > Does this help:
> >
> > Slightly improved to tackle the borders.
> >
> > class Board
> >   def initialize(size=8)
> >     @size = 8
> >     @values = Array.new( size * size, 0 )
> >   end

Sorry, I put an error in here:

> >   def [](x,y)
> >     @values[pos(x,y)]=v
> >   end

Should've read:

def [](x,y)
  @values[pos(x,y)]
end

> >
> >   def []=(x,y,v)
> >     @values[pos(x,y)]=v
> >   end
> >
> >   protected
> >   def pos(x,y)
> >     ( x % @size ) * @size + ( y % @size )
> >   end
> > end
> >
> > > board = Board.new
> > > tmp = board.dup
> > > # manipulate tmp
> > > board = tmp
> >
> >     robert
>
> This is much more sophiscated than my program (with help from another
> poster in a similar thread here in comp.lang.ruby), but I used the
>
> row % size
>
> method for dealing with the edges also. The following initial
configuration
> goes a long time before oscillating (I think), and I recommend running
it
> for anyone who is interested.
>
> As a beginner, I'm not used to defining my own classes or def
statements,
> but that will come with time--I hope :-)

Sure enough!  You'll be surprised how easy that is with Ruby once you get
used to OO thinking.  The things (read: objects) get a live of their own.

Kind regards

    robert