This is a collection of helper shell scripts to create textures for international characters to be used with the signs_lib Minetest mod.
They currently expect the Liberation Fonts to be installed at "/usr/share/fonts/truetype/liberation".
ImageMagick is also required.
sh create-signs-lib-overlay.sh <signs_lib_directory>
For example, this command will write textures for the non-ASCII characters of the French language to "/home/user/signs_lib":
sh create-signs-lib-overlay.sh /home/user/signs_lib fr
Currently, there is support for German (de), French (fr) and Polish (pl) non-ASCII characters.
I chose the image processing parameters in order fairly match the alignment of the existing signs_lib textures. In order to get even better alignment at the expense of slightly smaller textures, it is possible to also replace existing ASCII character textures:
sh write-ascii.sh <signs_lib_texture_directory>
For example, with signs_lib residing at "/home/user/signs_lib":
sh write-ascii.sh /home/user/signs_lib/textures