Re: [Rails-devel] Can special tile lays ever be an upgrade?

[Chris S. <chr...@gm...>]

1846 has privates that allow green upgrades as special tile lays.

--
Chris

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On Thu, Nov 24, 2011 at 10:49 AM, Erik Vos <eri...@xs...> wrote:

> I have started to look after my backlog of old "follow-up" emails.
>
> > From: John David Galt [mailto:jd...@di...]
> > Stefan Frey wrote:
> > > Some minor bug fixes:
> > >
> > > A. Special tile lays
> > > Currently special tile lays had hardly any checks for its validity.
> > >
> > > Examples:
> > > a) In 1889 the port tile can be laid on a hex already containing a
> > > yellow broad curve town tile.
> > > b) In 18AL the lumberjack tile can be laid on a hex already containing
> > > a yellow broad curve tile.
> > > c) In 1830 the D&H allows upgrading to green tiles if a yellow tile
> > > was laid already.
> > >
> > > The following changes prevent this:
> > > - Special tile lays always increase tile colour number.
> >
> > I don't understand this, unless it means that the tile colour must follow
> the
> > same progression (from what's already in the hex) as a regular tile lay.
> > This is a good general rule, but we need to be able to declare exceptions
> in a
> > game definition.
> >
> > > - Special tile lays always check the allowed tile colour of the current
> phase.
> >
> > If this is true, I would think it would solve the Pfalz problem (just
> notice that
> > the hex is already yellow).
>
> Alternatively, can we assume it to be a hard rule that special tile lays
> must always be *initial* lays, no upgrades?
> Because that would be a simple check.
>
> Most rule books state this rule in some way or another, although sometimes
> I
> can assert it only by assuming that all usage of the terms "place"/"lay"
> (as
> opposed to "replace"/"upgrade") is deliberately intended to refer to
> initial
> tile lays only.
>
> Are any specific exceptions known where a special tile lay can be an
> upgrade
> of a tile laid earlier?
>
> Erik.
>
>
>
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