All the games in this collection have always defined their graphics

[sgt/puzzles] / puzzles.but

diff --git a/puzzles.but b/puzzles.but
index e1f6681..e171c7f 100644 (file)
--- a/puzzles.but
+++ b/puzzles.but
@@ -416,9 +416,13 @@ octahedron or an icosahedron.
 \IM{Cube controls} keys, for Cube
 \IM{Cube controls} shortcuts (keyboard), for Cube
 
-This game is played with the keyboard. The arrow keys are used to roll the
-cube (or other solid).
+This game can be played with either the keyboard or the mouse.
 
+Left-clicking anywhere on the window will move the cube (or other
+solid) towards the mouse pointer.
+
+The arrow keys can also used to roll the cube on its square grid in
+the four cardinal directions.
 On the triangular grids, the mapping of arrow keys to directions is
 more approximate. Vertical movement is disallowed where it doesn't
 make sense. The four keys surrounding the arrow keys on the numeric
@@ -876,9 +880,19 @@ turn, and so on if any of them also has no surrounding mines. This
 will be done for you automatically; so sometimes when you uncover a
 square, a whole new area will open up to be explored.
 
-(All the actions described in \k{common-actions} are also available.
+All the actions described in \k{common-actions} are also available.
+
 Even Undo is available, although you might consider it cheating to
-use it!)
+use it. If you step on a mine, the program will only reveal the mine
+in question (unlike most other implementations, which reveal all of
+them). You can then Undo your fatal move and continue playing if you
+like. The program will track the number of times you died (and Undo
+will not reduce that counter), so when you get to the end of the
+game you know whether or not you did it without making any errors.
+
+(If you really want to know the full layout of the grid, which other
+implementations will show you after you die, you can always use the
+Solve menu option.)
 
 \H{mines-parameters} \I{parameters, for Mines}Mines parameters
 
@@ -891,7 +905,17 @@ menu are:
 
 \dt \e{Mines}
 
-\dd Number of mines in the grid.
+\dd Number of mines in the grid. You can enter this as an absolute
+mine count, or alternatively you can put a \cw{%} sign on the end in
+which case the game will arrange for that proportion of the squares
+in the grid to be mines.
+
+\lcont{
+
+Beware of setting the mine count too high. At very high densities,
+the program may spend forever searching for a solvable grid.
+
+}
 
 \dt \e{Ensure solubility}