puzzles: refactor and resync with upstream

This brings puzzles up-to-date with upstream revision
2d333750272c3967cfd5cd3677572cddeaad5932, though certain changes made
by me, including cursor-only Untangle and some compilation fixes
remain. Upstream code has been moved to its separate subdirectory and
future syncs can be done by simply copying over the new sources.

Change-Id: Ia6506ca5f78c3627165ea6791d38db414ace0804

1 files changed, 22 insertions, 0 deletions

diff --git a/apps/plugins/puzzles/src/html/undead.html b/apps/plugins/puzzles/src/html/undead.html
new file mode 100644
index 0000000000..c21374f6dc
--- /dev/null
+++ b/apps/plugins/puzzles/src/html/undead.html
@@ -0,0 +1,22 @@
+Undead
+<p>
+Fill in every grid square which doesn't contain a mirror with either a
+ghost, a vampire, or a zombie. The numbers round the grid edges show
+how many monsters must be visible along your line of sight if you look
+directly into the grid from that position, along a row or column.
+Zombies are always visible; ghosts are only visible when reflected in
+at least one mirror; vampires are only visible when not reflected in
+any mirror.
+
+<p>
+To place a monster, click in a square to select it, then type the
+monster's letter on the keyboard: G for a ghost, V for a vampire or Z
+for a zombie. To erase a monster, click to select a square and then
+press Backspace.
+<p>
+Right-click in a square and then type a letter to add or remove the
+monster as a pencil mark, indicating monsters that you think
+<em>might</em> go in that square.
+<p>
+Left-click on a clue to mark it as done (grey it out). To unmark a
+clue as done, left-click on it again.