--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/img_tool.rb	Sun Sep 15 11:46:47 2019 +0200
@@ -0,0 +1,104 @@
+require 'fileutils'
+
+imgfile = "download.png"
+target_dir = "work"
+
+imgfile = ARGV[0] if ARGV.length >= 1
+target_dir = ARGV[1] if ARGV.length >= 2
+
+puts "working on image: #{imgfile} going into #{target_dir}"
+
+# Does it exist?
+abort("#{imgfile} does not exist. Giving up.") if not File.exist?(imgfile)
+
+# Cutting the file into long pieces.
+abort("#{imgfile} could not be split up into lines") if not system("convert #{imgfile} -crop 832x64  +repage  +adjoin  row_%02d.png")
+
+# Relocating all pieces into their own directory.
+# The following is the list:
+# 0  - Spell cast up      - scu
+# 1  - Spell cast left    - scl
+# 2  - Spell cast down    - scd
+# 3  - Spell cast right   -	scr
+# 4  - Thrust up          - tru
+# 5  - Thrust left        - trl
+# 6  - Thrust down        - trd
+# 7  - Thrust right       - trr
+# 8  - Walk up            - wlu
+# 9  - Walk left          - wll
+# 10 - Walk down          - wld
+# 11 - Walk right         - wlr
+# 12 - Slash up           - slu
+# 13 - Slash left         - sll
+# 14 - Slash down         - sld
+# 15 - Slash right        - slr
+# 16 - Shoot up           - shu
+# 17 - Shoot left         - shl
+# 18 - Shoot down         - shd
+# 19 - Shoot right        - shr
+# 20 - Hurt               - hrt
+
+maps = 	{
+	    "00" => {:name => "scu", :count => 7, :base_name => "sc", :direction => "u"},
+	    "01" => {:name => "scl", :count => 7, :base_name => "sc", :direction => "l"},
+	    "02" => {:name => "scd", :count => 7, :base_name => "sc", :direction => "d"},
+	    "03" => {:name => "scr", :count => 7, :base_name => "sc", :direction => "r"},
+	    "04" => {:name => "tru", :count => 8, :base_name => "tr", :direction => "u"},
+	    "05" => {:name => "trl", :count => 8, :base_name => "tr", :direction => "l"},
+	    "06" => {:name => "trd", :count => 8, :base_name => "tr", :direction => "d"},
+	    "07" => {:name => "trr", :count => 8, :base_name => "tr", :direction => "r"},
+		  "08" => {:name => "wlu", :count => 9, :base_name => "wl", :direction => "u"},
+		  "09" => {:name => "wll", :count => 9, :base_name => "wl", :direction => "l"},
+			"10" => {:name => "wld", :count => 9, :base_name => "wl", :direction => "d"},
+			"11" => {:name => "wlr", :count => 9, :base_name => "wl", :direction => "r"},
+			"12" => {:name => "slu", :count => 6, :base_name => "sl", :direction => "u"},
+			"13" => {:name => "sll", :count => 6, :base_name => "sl", :direction => "l"},
+			"14" => {:name => "sld", :count => 6, :base_name => "sl", :direction => "d"},
+			"15" => {:name => "slr", :count => 6, :base_name => "sl", :direction => "r"},
+			"16" => {:name => "shu", :count =>13, :base_name => "sh", :direction => "u"},
+			"17" => {:name => "shl", :count =>13, :base_name => "sh", :direction => "l"},
+			"18" => {:name => "shd", :count =>13, :base_name => "sh", :direction => "d"},
+			"19" => {:name => "shr", :count =>13, :base_name => "sh", :direction => "r"},
+			"20" => {:name => "hrt", :count => 6, :base_name => "hr", :direction => "t"}
+		}
+
+
+# Prepare the work directory
+abort("Cannot create #{target_dir}") if not FileUtils::mkdir_p "#{target_dir}"
+
+maps.each do |key, value_map|
+	
+	# Create the directory where the file will go
+	current_target_dir = target_dir + "/" + value_map[:base_name]
+	abort("Cannot create #{current_target_dir} dir") if not FileUtils::mkdir_p "#{current_target_dir}"
+
+	# The current file
+	current_file = "row_#{key}.png"
+	FileUtils.mv(current_file, "#{current_target_dir}")
+
+	#Save current location
+	current_dir = Dir.pwd
+
+	# Create the template of the outcoming files
+	target_filenames = value_map[:direction] + "_" + value_map[:base_name] + "_%01d.png"
+	# now go into the directory and chop up the images
+	Dir.chdir(current_target_dir)
+	abort("Cannot chop up #{current_file}") if not system("convert #{current_file} -crop 64x64  +repage  +adjoin -scene 1 #{target_filenames}")
+
+	# Now remove all files that are after count
+	(value_map[:count] + 1 .. 13).each do |num|
+		to_delete_filename = value_map[:direction] + "_" + value_map[:base_name] + "_" + num.to_s + ".png"
+		FileUtils.rm(to_delete_filename)
+	end
+
+	# remove current file
+	FileUtils.rm(current_file)
+
+	# And resize everything in the current directory to 32x32
+	abort("Cannot mogrify") if not system("mogrify -geometry x32 *.png")
+	
+	# Let's go home, fetch the next file
+	Dir.chdir(current_dir)
+end
+
+