Re: computer-go: Sharing Go modules

[Don Dailey <drd@xxxxxxxxxxxxxxxxxxxxx>]

My  program uses a  border of 2 instead  of 1.  But otherwise it's the
same one dimensional array idea.

On each intersection I store a color bit and a  unit number.  There is
no  unit zero.  A   unit is just a string   with liberties.  The  unit
number indexes a structure that has stuff about  the unit like liberty
counts and how large the unit is.  This is all incrementally updated.

I have no idea whatsoever if what I do is efficient or not, and I do not
know how it compares to other programmers representations.  

Don


   From: "Anders Kierulf" <anders@xxxxxxxxxxxxxxxxx>
   Date: Wed, 16 May 2001 10:28:02 -0700
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   > Is it similarly standard to use 0 for EMPTY, 1 for BLACK, 2 for WHITE,
   > and 3 for EDGE ?

   SmartGo also uses 1 for Black and 2 for White. However, it uses 4 for Empty
   and 8 for points off the board. Using a separate bit for each color allows
   fast tests for e.g. White OR Empty.

   Anders Kierulf
   www.smartgo.com