This to prevent compilation issues between runs with and without precompiled
headers. Also remove the headers from the rest of the code base as they are
not needed there anymore, although they do relatively little harm.
There are two fundamental issues with autosave:
- When fast-forwarding, it saves way too often
- When paused, it never saves
Both makes no sense. Autosaves are meant to prevent you from
accidentally losing your work. The emphasis on "your" work.
To solve both issues, the autosave now works on real time. You
can select every 10 / 30 / 60 / 120 minutes, which are similar to
what the setting was in game-months.
When you pause, autosaving will stop. Unless you make any change
to the game; then it will continue to make autosaves, even so
the game is paused. Unpausing / pausing resets this mechanism.
The per-AI "start_date" is a lot of custom code, and was rarely
used in the way it was meant.
While at it, also ported this part over to the new timer system.
IntervalTimer and TimeoutTimer use RAII, and can be used to replace
all the time-based timeouts, lag-detection, "execute every N" we
have.
As it uses RAII, you can safely use it as static variable, class
member, temporary variable, etc. As soon as it goes out-of-scope,
it will be safely removed.
This allows for much easier to read code when it comes to intervals.
Peter Nelson