X-Git-Url: https://git.distorted.org.uk/~mdw/sgt/puzzles/blobdiff_plain/149255d7ed0f808783624fcaaf8c3449cf99c851..59206b9c3de335d76d126aa39b928b044b75a9bb:/puzzles.but

diff --git a/puzzles.but b/puzzles.but
index 5bee392..401419e 100644
--- a/puzzles.but
+++ b/puzzles.but
@@ -2078,7 +2078,7 @@ tightly-packed islands.
 \cfg{winhelp-topic}{games.unequal}
 
 You have a square grid; each square may contain a digit from 1 to
-the size of the grid, and some squares have greater-signs between
+the size of the grid, and some squares have greater-than signs between
 them. Your aim is to fully populate the grid with numbers such that:
 
 \b Each row contains only one occurrence of each digit
@@ -2087,11 +2087,11 @@ them. Your aim is to fully populate the grid with numbers such that:
 
 \b All the greater-than signs are satisfied. 
 
-In 'Trivial' mode, there are no greater-than signs; the puzzle is
-to solve the latin square only.
+In \q{Trivial} mode, there are no greater-than signs; the puzzle is
+to solve the \i{Latin square} only.
 
 At the time of writing, this puzzle is appearing in the Guardian
-weekly under the name 'Futoshiki'.
+weekly under the name \q{\i{Futoshiki}}.
 
 Unequal was contributed to this collection by James Harvey.
 
@@ -2136,10 +2136,73 @@ These parameters are available from the \q{Custom...} option on the
 
 \dt \e{Difficulty}
 
-\dd Controls the difficulty of the generated puzzle. At Trivial level,
-there are no greater-than signs (the puzzle is to solve the latin
-square only); at Tricky level, some recursion may be required (but the
-solutions should always be unique).
+\dd Controls the difficulty of the generated puzzle. At Trivial
+level, there are no greater-than signs (the puzzle is to solve the
+Latin square only); at Recursive level backtracking will be required
+(but the solution should still be unique); the levels in between
+require increasingly complex reasoning to avoid having to backtrack.
+
+
+
+\C{galaxies} \i{Galaxies}
+
+\cfg{winhelp-topic}{games.galaxies}
+
+You have a rectangular grid containing a number of dots. Your aim is
+to draw edges along the grid lines which divide the rectangle into
+regions in such a way that every region is 180\u00b0{-degree}
+rotationally symmetric, and contains exactly one dot which is
+located at its centre of symmetry.
+
+This puzzle was invented by \i{Nikoli} \k{nikoli-galaxies}, under
+the name \q{Tentai Show}; its name is commonly translated into
+English as \q{Spiral Galaxies}.
+
+Galaxies was contributed to this collection by James Harvey.
+
+\B{nikoli-galaxies} \W{http://www.nikoli.co.jp/en/puzzles/astronomical_show/}\cw{http://www.nikoli.co.jp/en/puzzles/astronomical_show/}
+
+\H{galaxies-controls} \i{Galaxies controls}
+
+\IM{Galaxies controls} controls, for Galaxies
+
+Left-click on any grid line to draw an edge if there isn't one
+already, or to remove one if there is. When you create a valid
+region (one which is closed, contains exactly one dot, is
+180\u00b0{-degree} symmetric about that dot, and contains no
+extraneous edges inside it) it will be highlighted automatically; so
+your aim is to have the whole grid highlighted in that way.
+
+During solving, you might know that a particular grid square belongs
+to a specific dot, but not be sure of where the edges go and which
+other squares are connected to the dot. In order to mark this so you
+don't forget, you can right-click on the dot and drag, which will
+create an arrow marker pointing at the dot. Drop that in a square of
+your choice and it will remind you which dot it's associated with.
+You can also right-click on existing arrows to pick them up and move
+them, or destroy them by dropping them off the edge of the grid.
+(Also, if you're not sure which dot an arrow is pointing at, you can
+pick it up and move it around to make it clearer. It will swivel
+constantly as you drag it, to stay pointed at its parent dot.)
+
+(All the actions described in \k{common-actions} are also available.)
+
+\H{galaxies-parameters} \I{parameters, for Galaxies}Galaxies parameters
+
+These parameters are available from the \q{Custom...} option on the
+\q{Type} menu.
+
+\dt \e{Width}, \e{Height}
+
+\dd Size of grid in squares.
+
+\dt \e{Difficulty}
+
+\dd Controls the difficulty of the generated puzzle. More difficult
+puzzles require more complex deductions, and the \q{Unreasonable}
+difficulty level may require backtracking.
+
+
 
 
 \A{licence} \I{MIT licence}\ii{Licence}
@@ -2150,7 +2213,7 @@ Portions copyright Richard Boulton, James Harvey and Mike Pinna.
 
 Permission is hereby granted, free of charge, to any person
 obtaining a copy of this software and associated documentation files
-(the "Software"), to deal in the Software without restriction,
+(the \q{Software}), to deal in the Software without restriction,
 including without limitation the rights to use, copy, modify, merge,
 publish, distribute, sublicense, and/or sell copies of the Software,
 and to permit persons to whom the Software is furnished to do so,
@@ -2159,7 +2222,7 @@ subject to the following conditions:
 The above copyright notice and this permission notice shall be
 included in all copies or substantial portions of the Software.
 
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+THE SOFTWARE IS PROVIDED \q{AS IS}, WITHOUT WARRANTY OF ANY KIND,
 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS