Re: [Bug-gnubg] Bug: Race theory, dice seed

[Joern Thyssen]

On Tue, Sep 30, 2003 at 08:50:49PM +0200, Holger wrote
> At 15:02 30.09.2003, Joern Thyssen wrote:
> >On Tue, Sep 30, 2003 at 10:47:47AM +0000, Joern Thyssen wrote
> >> On Mon, Sep 29, 2003 at 09:46:13PM -0400, Christopher D. Yep wrote
> >> >
> >> > What is probably happening is that invoking the race theory window 
> >causes
> >> > gnubg to set the dice seed to some given value.
> >>
> >> Yes, the one sided rollout sets the dice seed.
> >
> >The one sided rollout uses the Mersenne Twister RNG, so it only affects
> >those who use that.
> >
> >You'll observe the same kind of problem if you do a rollout with the
> >same RNG as you use for playing.
> 
> Would it be possible to use a second instance of the RNG for other things 
> then play so they don't disturb each other? (I mean, does the RNG code 
> support this?)

gnubg supports a number of RNGs. I guess some of them support multiple
instances, but others don't (e.g., BSD, ansi, and others).

Jørn

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