From: Karl von Laudermann <doodpants@...>
Date: 2008-01-09T23:50:00+09:00
Subject: Re: Why this behaviour?

On Jan 9, 9:35 am, Daniele Antani <daniele.cesar...@gmail.com> wrote:
> Hello to all,
>
> i can't understand the follow behaviour:
>
> class Player
>   attr_accessor :hand
>   def initialize(hand)
>     @hand = hand
>   end
> end
> Why the change affects both objects? I want to copy the first object and
> work on the copy without affecting the original.

Both Player objects contain a reference to the same array. What you
want is this:

class Player
  attr_accessor :hand
  def initialize(hand)
    @hand = hand.clone
  end
end