[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, 37 insertions, 0 deletions

diff --git a/apps/plugins/puzzles/icons/crop.sh b/apps/plugins/puzzles/icons/crop.sh
new file mode 100755
index 0000000..0d15d3c
--- /dev/null
+++ b/apps/plugins/puzzles/icons/crop.sh
@@ -0,0 +1,37 @@
+#!/bin/sh 
+
+# Crop one image into another, after first checking that the source
+# image has the expected size in pixels.
+#
+# This is used in the Puzzles icon build scripts to construct icons
+# which are zoomed in on a particular sub-area of the puzzle's
+# basic screenshot. This way I can define crop areas in pixels,
+# while not having to worry too much that if I adjust the source
+# puzzle so as to alter the layout the crop area might start
+# hitting the wrong bit of picture. Most layout changes I can
+# conveniently imagine will also alter the overall image size, so
+# this script will give a build error and alert me to the fact that
+# I need to fiddle with the icon makefile.
+
+infile="$1"
+outfile="$2"
+insize="$3"
+crop="$4"
+
+# Special case: if no input size or crop parameter was specified at
+# all, we just copy the input to the output file.
+
+if test $# -lt 3; then
+  cp "$infile" "$outfile"
+  exit 0
+fi
+
+# Check the input image size.
+realsize=`identify -format %wx%h "$infile"`
+if test "x$insize" != "x$realsize"; then
+  echo "crop.sh: '$infile' has wrong initial size: $realsize != $insize" >&2
+  exit 1
+fi
+
+# And crop.
+convert -crop "$crop" "$infile" "$outfile"