[WIP] Port of Simon Tatham's Puzzle Collectionpuzzles

Original revision: 5123b1bf68777ffa86e651f178046b26a87cf2d9

MIT Licensed. Some games still crash and others are unplayable due to
issues with controls. Still need a "real" polygon filling algorithm.

The following games are at least partially broken for various reasons:

Cube:     crash with certain settings
Galaxies: crash
Inertia:  crash
Keen:     input issues
Loopy:    weird stuff happens
Map:      crash on input
Mines:    weird stuff happens on target
Palisade: input issues
Signpost: crash on input
Solo:     input issues
Towers:   input and drawing issues
Train Tracks: drawing issues
Twiddle:  weird animation on target
Undead:   input and drawing issues
Unequal:  input and drawing issues
Untangle: input issues

All in all, about 40% of the games are at least partially broken.

Change-Id: I7c69b6860ab115f973c8d76799502e9bb3d52368

1 files changed, 13 insertions, 0 deletions

diff --git a/apps/plugins/puzzles/html/pearl.html b/apps/plugins/puzzles/html/pearl.html
new file mode 100644
index 0000000..2ca25a5
--- /dev/null
+++ b/apps/plugins/puzzles/html/pearl.html
@@ -0,0 +1,13 @@
+Pearl
+<p>
+Draw a single closed loop by connecting together the centres of
+adjacent grid squares, so that some squares end up as corners, some as
+straights (horizontal or vertical), and some may be empty. Every
+square containing a black circle must be a corner not connected
+directly to another corner; every square containing a white circle
+must be a straight which is connected to <em>at least one</em> corner.
+<p>
+Drag between squares to draw or undraw pieces of the loop.
+Alternatively, left-click the edge between two squares to turn it on
+or off. Right-click an edge to mark it with a cross indicating that
+you are sure the loop does not go through it.