Switch the bundled mincho font from a Source Han Serif JP subset to a
subset of IPA Mincho, which has monospace ASCII glyphs.
IPA Mincho's hhea ascent/descent already match its OS/2 typo metrics, so
adjust_metrics.py is no longer needed. However, IPA Mincho is distributed
under the IPA Font License v1.0, under which a subset is a "Derived
Program"; Article 3.1(4) forbids the derived font's name from containing
the licensed program's name ("IPA"). Add rename_font.py to rewrite the
name table accordingly, and replace licenses/mincho.txt with the IPA Font
License.
Graymerca uses JPEG images for map tiles, which suffers from color
bleeding due to chroma upsampling in the JPEG decoder.
Since stb_image cannot disable the bilinear upsampling filter, this
switches the JPEG decoder to NanoJPEG.
Fixes#67.
Require CMake 3.20+, because after upgrading the Android Gradle plugin
build with CMake <3.20 fails with the following error:
Execution failed for task ':app:buildCMakeDebug'.
> Expected output file at (...)obj/armeabi-v7a/libSDL2.so for target
SDL2 but there was none
Playlist is written to <gamedir>/playlist.txt during installation
("cdrom_device" in .xsys35rc is not used).
Files that match /(\d+)\.(wav|mp3|ogg)$/ are recognized as BGM files
(digits represent a track number). Note that this convention is the same
as Kichikuou on Web.
kichikuou