Provide a trackpad-style on-screen cursor for touch environments (mainly
Android), where touching the screen previously jumped the pointer to the
touched location (absolute) and SDL hardware cursors are invisible.
When enabled, a finger drag moves an arrow cursor relatively, a tap
left-clicks (held briefly so polling games detect it), two fingers
right-click, and a stationary long press starts a left-button drag. Real
mouse motion is ignored (including the spurious startup (0,0) event), and
program-driven cursor moves are followed via the internal pointer location
instead of warping the OS cursor.
The feature is disabled by default and enabled via the -virtualpointer
command-line option, the virtualpointer profile setting, or the "Virtual
mouse pointer" toggle in the Android launcher (persisted in
SharedPreferences and passed to the engine as -virtualpointer).
The gesture handling lives in event.c and the cursor rendering in the new
platform-independent virtual_pointer module, so it works on any touch
target.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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.
Launcher.kt extracts given ZIP file to the internal storage, preserving
its directory structure.
Before this change, if the game files were in a subdirectory, an
xsystem35.gr file was generated containing the path to the game files.
However, with this method, .xsys35rc and some data files (such as map
files of Kaeru Nyo) could not be loaded.
After this change, Launcher.kt will no longer generate the xsystem35.gr
file. Instead, it records the directory where the game is located in
game_directory.txt, and specify that directory in -gamedir to launch
xsystem35.
Fixes#51.
