[Icehouse] (revisit to---) Rotationary Rules - is this it?

[Timothy Hunt]

> By "ORIGINAL PEICE" they do not meanthe FIRST peice I rotated, but the first
> piece that was rotated in reaction the piece I choose... is that it?

No...

Let's go through the original rules and I'll add commentary:

> Pick one piece,

This piece is the "original" piece.

> and rotate it one 90° turn either clockwise or
> counterclockwise.

Rotate the "original piece"

> Whatever piece it then points to is rotated 90° in the
> same direction.

Rotate the first "chain reaction" piece.  Every time (except as noted
below) you choose a piece, at least one chain-reaction piece will
rotate.

>
> Then, if the original piece

ie, the piece that you chose

> is...
> Small: Stop there

because you've already rotated one, and a small "original" piece
causes a chain reaction size of one.

> Medium: If the piece you just rotated (the "active piece") is pointing at
> another piece, then that piece is rotated 90° in the original direction.
> Stop there.

the "active" piece here is the one most recently rotated, ie, the
first one in the chain-reaction. You've already rotated the original,
picked, piece, the first chain-reaction piece (from the instructions
earlier) and this rule causes you to rotate a second chain-reaction
piece.

> Large: Same as medium, but once more.

You've already rotated the original, picked, piece, the first and
second chain-reaction pieces (from the instructions earlier) and this
rule causes you to rotate a third chain-reaction piece.

>
> If at any point a piece is pointing at nothing (either the blank space on
> the grid or the edge of the board), the process stops.

And here's the exception : any chain reaction can be terminated in one
of two ways.  Either it came to its full conclusion (small + 1 CR
piece, medium +2 CR pieces, Large +3CR pieces), or it was terminated
early because one of the rotations caused the pyramid you just rotated
not to be pointing at another pyramid.

> After you stop, you
> may make another move. Continue until all pieces are pointing in the same
> direction after all rotations are done. You win!
>

Does that help?

Timothy