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, 14 insertions, 0 deletions

diff --git a/apps/plugins/puzzles/src/html/cube.html b/apps/plugins/puzzles/src/html/cube.html
new file mode 100644
index 0000000000..f08e16c38d
--- /dev/null
+++ b/apps/plugins/puzzles/src/html/cube.html
@@ -0,0 +1,14 @@
+Cube
+<p>
+Roll the cube around the grid, picking up the blue squares on its
+faces. Try to get all the blue squares on to the object at the same
+time, in as few moves as possible.
+<p>
+Use the arrow keys to roll the cube, or click the mouse where you
+want it to roll towards. After every roll, the grid square and cube
+face that you brought into contact swap their colours, so that a
+non-blue cube face can pick up a blue square, but a blue face rolled
+on to a non-blue square puts it down again.
+<p>
+When you have mastered the cube, use the Type menu to select other
+regular solids!