X-Git-Url: https://git.distorted.org.uk/~mdw/sgt/puzzles/blobdiff_plain/3e17893b1f77346f1e2460968f54b1d1468ef81f..b2ae5b05c9bd381daec303c6b038a12e7a0fbde2:/puzzles.but

diff --git a/puzzles.but b/puzzles.but
index 2e998f2..32f331a 100644
--- a/puzzles.but
+++ b/puzzles.but
@@ -884,6 +884,10 @@ a vertical or horizontal line of squares black or white at a time
 with Shift held down, you can colour a whole rectangle of squares
 grey.
 
+You can also move around the grid with the cursor keys. Pressing the
+return key will cycle the current cell through empty --> black -->
+white --> empty, and the space bar does the same cycle in reverse.
+
 (All the actions described in \k{common-actions} are also available.)
 
 \H{pattern-parameters} \I{parameters, for Pattern}Pattern parameters
@@ -1810,6 +1814,18 @@ 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.)
 
+You can also use the cursor keys to move around the map: the colour of
+the cursor indicates the position of the colour you would drag (which
+is not obvious if you're on a region's boundary, since it depends on the
+direction from which you approached the boundary). Pressing the return
+key starts a drag of that colour, as above, which you control with the
+cursor keys; pressing the return key again finishes the drag. The
+space bar can be used similarly to create a stippled region. 
+Double-pressing the return key (without moving the cursor) will clear
+the region, as a drag from an empty region does: this is useful with
+the cursor mode if you have filled the entire map in but need to 
+correct the layout.
+
 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