Use global/group save file format compatible with System4

After this, xsystem4 uses the global/group save format used by the
original System4, instead of the JSON format. Existing JSON save files
can still be loaded.

This makes save files interoperable between System4 and xsystem4 in some
games, including Sengoku Rance and Toushin Toshi III.
This commit is contained in:
kichikuou
2023-03-19 11:42:20 +09:00
parent 6a2eae7274
commit cc79f9caee
4 changed files with 300 additions and 70 deletions