make_event() lowercased the event name twice: cParser::getToken() already
folds ASCII via toLowerChar() (which intentionally leaves bytes >= 0x80
alone), then ToLower() ran std::tolower() over every byte on top of that.
With a non-"C" global locale, that second pass remaps cp1250 uppercase
accented letters (e.g. 0xAF -> 0xBF). Every lookup path - TTrack::AssignEvents(),
child-event resolution in multi_event, event-launcher name resolution -
normalizes only through the parser, so a registered name containing such a
letter can no longer be found: the track logs "can't find assigned event"
and the binding is silently dropped.
Removing the extra ToLower() makes the registration key match every lookup
site (ASCII-only folding, non-ASCII bytes compared verbatim), and matches
the direction toLowerChar()'s own comment already points at for UTF-8.
- Lua bindings are no longer using FFI in favor of the "classic" Lua C API.
- This makes it work properly on native Linux builds.
- Changed the Lua API slightly:
- Removed the `api.event_preparefunc()` function because it is no longer necessary. Instead, you can pass any function you want without preparing it first.
- Added an `api.event_exists()` function. Takes a single `name` argument.
- Any `api.find_*()` functions return `nil` instead of an userdata representing a null pointer when the requested object is not found.
