Re: [Bug-gnubg] documentation: algorithm for calculating "must use both die"

[Jim Segrave]

On Wed 19 Jul 2006 (10:42 -0400), Kenny Rosenblatt wrote:
> Hello,
> 
>  
> 
> Can anyone point me in the right place in the GNU backgammon source or
> anywhere else that will help show me the algorithm used when a player has
> the ability to use both dice, but attempted to use only one?   I am trying
> to prevent someone from making a move with only one die when there is a move
> available that would use both.   Any suggestions or links are appreciated.
> 
> 
> Thanks
> 
> Kenny

eval.c has the routine GenerateMoves() which creates a list of all the
legal moves for a given postiion and dice roll. After that, gnubg
checks that the entered move is a valid one. (more specifically, it
take the board postion after a player has made a move and compares it
to the resulting positions from all legal moves - if it's one of them,
it's OK, otherwise the move is rejected.



-- 
Jim Segrave           address@hidden