A basic shell script to find the number of pixels out of the hex in unit images

data/tools/hexometer/hexometer

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+#!/bin/sh
+scriptname="hexometer"
+help ()
+{
+	echo "Search png images not fitting in a hex"
+	echo
+	echo "$scriptname [option] [directory1 directory2 ...]"
+	echo "-m, --mask file      choose which image use as mask"
+	echo "                       (default = alphamask.png)"
+	echo "-a, --anim           skip most animations images (containing:"
+	echo "                       -attack -defend -melee -ranged -magic -idle"
+	echo "                       -die -dying -death -healing -flying -leading)"
+	echo "-s, --suffix         skip images with directional or numerical suffix"
+	echo "-r, --regex REG      skip images matching the case-insensitive"
+    echo "                       regular expression REG (posix-extended)"
+	echo "-f, --format         skip images which are not in 72x72 format"
+	echo "-q, --quiet          only display results"
+	echo
+	echo "return numbers of pixels out of the hex for each filename"
+	echo "(-1 if the image is not a standard 72x72 image and -f was not used"
+}
+
+mask="alphamask.png"
+format=0
+quiet=0
+
+regex=""
+suffix=".*(-n|-s|-w|-e|-ne|-nw|-sw|-se|-[0-9]+)(-|[.]).*"
+anim=".*-attack.*|.*-defend.*|.*-melee.*|.*-ranged.*|.*-magic.*|.*-idle.*|.*-die.*|.*-dying.*|.*-death.*|.*-flying.*|.*-leading.*|.*-healing.*"
+
+until [ -z "$1" ]
+do
+	if [ "$1" == "--help" -o "$1" == "-h" ]
+	then
+		help
+		exit
+	fi
+
+	if [ "$1" == "--mask" -o "$1" == "-m" ]
+	then
+		shift
+		mask="$1"
+		shift
+		continue
+	fi
+
+	if [ "$1" == "--regex" -o "$1" == "-r" ]
+	then
+		shift
+		regex="$regex|$1"
+		shift
+		continue
+	fi
+
+	if [ "$1" == "--anim" -o "$1" == "-a" ]
+	then
+		regex="$regex|$anim"
+		shift
+		continue
+	fi
+
+	if [ "$1" == "--suffix" -o "$1" == "-s" ]
+	then
+		regex="$regex|$suffix"
+		shift
+		continue
+	fi
+
+	if [ "$1" == "--format" -o "$1" == "-f" ]
+	then
+		format=1
+		shift
+		continue
+	fi
+
+	if [ "$1" == "--quiet" -o "$1" == "-q" ]
+	then
+		quiet=1
+		shift
+		continue
+	fi
+
+	# record all given directories
+	dir="$dir $1"
+	shift
+
+done
+
+# if no directory, use current
+if [ "$dir" == "" ]
+then
+	dir='.'
+fi
+
+if [ ! -r $mask ]
+then
+	echo "$scriptname : cannot access $mask : No such file or directory "
+	exit 1
+fi
+
+
+if [ "$quiet" == 0 ]
+then
+	echo "Search 72x72 images not fitting in a hex"
+	echo "in directories : $dir"
+	echo "Using alphamask image : $mask"
+	echo "Skipping files matching regex: $regex"
+	echo "Pixels out of hex : filename"
+fi
+
+test_img()
+{
+	if [ `identify -format "%wx%h" $img` != '72x72' ]
+	then
+		if [ $format == 0 ]
+		then
+			px=-1
+		else
+			# mark as ok, because user want to skip bad format
+			px=0 
+		fi
+	else
+		px=`composite $mask $img /tmp/tmp_result.png && compare -channel alpha -metric AE $mask /tmp/tmp_result.png /dev/null 2>&1 `
+	fi
+
+	if [ "$px" != 0 ]
+	then
+		echo -e "$px\t : $img"
+	fi
+}
+
+find $dir -regextype posix-extended -name '*.png' -and -not -iregex "$regex" \
+		-print | sort | while read img; do test_img; done
+
+rm -f /tmp/tmp_result.png
+exit