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, 20 insertions, 0 deletions

diff --git a/apps/plugins/puzzles/src/html/tents.html b/apps/plugins/puzzles/src/html/tents.html
new file mode 100644
index 0000000000..e3f6d5f0ea
--- /dev/null
+++ b/apps/plugins/puzzles/src/html/tents.html
@@ -0,0 +1,20 @@
+Tents
+<p>
+Place tents in the empty squares in such a way that:
+<ul>
+<li>no two tents are adjacent, even diagonally
+<li>the number of tents in each row and column matches the numbers
+around the edge of the grid
+<li>it is possible to match tents to trees so that each tree is
+orthogonally adjacent to its own tent (but may also be adjacent to
+other tents).
+</ul>
+<p>
+Click in a square to place or remove a tent. Right-click to mark a
+square as empty (not a tent). Right-click and drag along a row or
+column to mark many squares at once as empty.
+<p>
+Warning '!' marks appear to indicate adjacent tents. Numbers round
+the edge of the grid light up red to indicate they do not match the
+number of tents in the row. Groups of tents light up red to indicate
+that they have too few trees between them, and vice versa.