From: Edwin van Leeuwen <edder@...>
Date: 2005-11-28T22:03:02+09:00
Subject: Re: Object access heirarchies

leslie wrote:
> What I want to know is: what's the best way? I had globals $player,
> $world, $map
> earlier and that makes things a bit easier but it also makes me nervous
> (perhaps just because I have been anti-global-indoctrinated for 20 years
> now)
You could do it with class variables:
class Map
  private_class_method :new
  @@map = nil
  def Logger.create
    @@map = new unless @@map
    @@map
  end
end

Now you can call from each object that needs the map object: 
map=Map.create and it will create a new one if none exists, or send you 
the already created object.


Edwin

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