loopy_diffnames[] isn't used, and provokes a warning on OS X.

[sgt/puzzles] / puzzles.but

diff --git a/puzzles.but b/puzzles.but
index 4b4df44..00dfef5 100644 (file)
--- a/puzzles.but
+++ b/puzzles.but
@@ -1640,6 +1640,13 @@ you think the region \e{might} be that colour. A region can contain
 stipples in multiple colours at once. (This is often useful at the
 harder difficulty levels.)
 
+If you press L during play, the game will toggle display of a number
+in each region of the map. This is useful if you want to discuss a
+particular puzzle instance with a friend \dash having an unambiguous
+name for each region is much easier than trying to refer to them all
+by names such as \q{the one down and right of the brown one on the
+top border}.
+
 (All the actions described in \k{common-actions} are also available.)
 
 \H{map-parameters} \I{parameters, for Map}Map parameters
@@ -1768,6 +1775,18 @@ numeric keypad. Alternatively, if you click the left mouse button on
 the grid, the ball will begin a move in the general direction of
 where you clicked.
 
+If you use the \q{Solve} function on this game, the program will
+compute a path through the grid which collects all the remaining
+gems and returns to the current position. A hint arrow will appear
+on the ball indicating the direction in which you should move to
+begin on this path. If you then move in that direction, the arrow
+will update to indicate the next direction on the path. You can also
+press Space to automatically move in the direction of the hint
+arrow. If you move in a different direction from the one shown by
+the arrow, the hint arrows will stop appearing because you have
+strayed from the provided path; you can then use \q{Solve} again to
+generate a new path if you want to.
+
 All the actions described in \k{common-actions} are also available.
 In particular, if you do run into a mine and die, you can use the
 Undo function and resume playing from before the fatal move. The