- Added a `startDay` parameter to the `Calendar` class to allow for fractional day offsets at clock initialization, enabling more flexible time settings.
- Updated `TotalDays` calculation to include the `startDay` offset.
- Introduced `StartDayOfYear` in `ClimateSettings` to shift the seasonal phase, allowing worlds to begin at a specific time of year.
- Adjusted `YearProgress` and `Year` calculations in the `Climate` class to account for the new `StartDayOfYear`.
- Added unit tests to verify the functionality of the new start day features in both `Calendar` and `Climate` classes.
Add Hour, Minute and MinuteOfDay to Calendar, decomposing DayProgress into
a 24x60 in-game clock so games can show a date and time, not just the day
number. Covered by a test.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Introduce a Calendar in Core that turns scaled clock time into whole
in-game days plus a fraction-of-day, with a configurable SecondsPerDay.
Pausing or changing TimeScale slows or stops it automatically. Pure
read-side and deterministic, registered via context.UseCalendar(...),
mirroring GameSpeed. Covered by xUnit tests; docs updated.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>