From: Johannes Held Date: 2011-05-06T17:25:51+09:00 Subject: Re: Cross access between instance variables On 05.05.2011 21:06, Stefan Salewski wrote: > But now we really need many tanks, each with very many fishes. > Currently it seems to be a bit strange giving each of thousands > fishes a reference to its tank. You can control the fishes within the tank. Every fish is saved in an array in tank. The tank queries every fish for it's mood � http://pastie.org/1870880 > Another solution may be to give the .tell_state() function a tank > parameter each time when we call it. (A tank-temperature parameter > is not a good idea, because we may need more, light, food...) Why not? Pass them via a hash? IMO there's no need for a fish to know its tank. -- Johannes