[Freeciv-Dev] Re: (PR#2464) patch: restrict techs by nation

["Jason Short via RT" <rt@xxxxxxxxxxxxxx>]

On Wed, 2002-12-04 at 15:27, Per I. Mathisen via RT wrote:
> 
> On Wed, 4 Dec 2002, Raimar Falke via RT wrote:
> > > And we can't copy the nation requirements, because we may have two
> > > different sets of nation requirements from our two requirement techs.
> >
> > So what is the problem?
> >
> > > For example:
> > >
> > > [advance_sauronsupernavigation]
> > > name   = _("Sauron's Super Navigation")
> > > req1   = "Normal Navigation"
> > > req2   = "Sauronification"
> > > flags  = ""
> >
> > >nations= "Sauron"
> >
> > nations= ""
> 
> This is the problem.
> 
> req1 gives an inheritance of "All", while req2 gives an inheritance of
> "Sauron", and neither is automatically correct, so you must say explicitly
> what the resulting nation allowances should be.

When researching techs, the logic here is clear: only those who have
both Normal Navigation AND Sauronification can research Sauron's super
navigation.  So it is clear only Sauron can research this tech.

Should this same logic apply when trading techs?

jason