Re: [Rails-devel] 1825 half-tiles

[Stefan F. <ste...@we...>]

I was under the impression that the "impassable" attribute actually does 
exactly that. Or is it not possible to use it in the scenario below for a 
different reason?
Stefan

On Saturday, October 29, 2011 02:07:00 pm Erik Vos wrote:
> The "existing mechanism" only allows opening hex edges that would otherwise
> be closed, not the other way around.
> Of course we can extend (or replace) that mechanism.  I'm just trying to
> find out if this very minor issue (as JDG correctly points out) is really
> worth it to create an exception for, also in the light of the uncertainty
> about what the rules (as cited) really say.
> 
> BTW: Q11 is Crewe, not Wolverton.
> 
> Erik.
> 
> > From: Stefan Frey [mailto:ste...@we...]
> > 
> > Could you not lay the half tile on Q11 and block the SW side of hex tile
> 
> Q11
> 
> > using the existing mechanism?
> > 
> > On Friday, October 28, 2011 10:22:45 pm Erik Vos wrote:
> > > I'm including these half-tiles into 1825 Unit 1, and it basically
> > > works. As expected, it turns out, that adding these half-tiles makes
> > > the existing "open" attributes redundant. This attribute achieves the
> > > same thing: that track can be laid towards the board edge.
> > > 
> > > However, the question arises how to interpret the rule that "Tiles may
> > > be placed so that a railway terminates against the edge of the board
> > > or against the side of an incomplete hexag"  in some specific cases
> > > where laying track would not be allowed if the adjacent board was
> > > actually present.  For Unit 1, this refers to the Q row hexes, of
> > > which only the southernmost corner is just visible on the Unit1 game
> > > board.  If taken literally, the cited rule would allow track lays
> > > against all edges of the Q row hexes if Unit2/R3 are absent.
> > > 
> > > However, if both Unit2 and Kit R3 are present, hex Q11 (Wolverton)
> > > would be only reachable from the SE, and hex Q21 (The Wash, i.e. sea)
> 
> not
> 
> > at all.
> > 
> > > And that is how I had implemented it also for the case that Unit2/R3
> > > are absent (I only vaguely remember that we might have had some
> > > discussion about this issue).
> > > 
> > > My current preference is to use a half-tile on hex Q11 (to which
> > > therefore track can be laid from both the SW and SE directions), and
> > > to omit it on hex Q21 (which therefore cannot be laid any track
> > > against).  To replicate the current behaviour, I would have to omit
> > > the half-tile from Q11, and keep using the existing 'open' attribute
> > > instead, so that Q11 can only be laid track against from the SE.
> > > 
> > > Any opinions?
> > > 
> > > Erik.
> 
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