* Avoid inheritance.
* Define equality operators out of the class definition.
* Replace toString with toStringView where it doesn't make sense to create a string.
To fix all possible situations when active message box overlaps with loading
screen progress.
The only used condition to center loading screen progress by height is
number of message boxes > 0. No need to pass it through interface.
LoadingScreen can check it inside setLabel function.
Restore projectile caster from savegame (#5860)
See merge request OpenMW/openmw!616
(cherry picked from commit d595c7adb0fb45eafed6d3d0403ad640a91411ed)
c5426bec In the savegame, projectile caster is identified by its actor id. When
When multiple quicksaves occurred in quick succession, the numeric order
of the saves could not be guaranteed. To prevent players from getting
confused as to why their saves appear out of order, don't number them.
With more than 1 quicksave slot, slots will be created each time you
quicksave until the maximum number (configured in settings) of
quicksaves has been reached. After that, the oldest quicksave slot will
be replaced each time you quicksave. Saves are numbered sequentially,
unless the maximum number of slots is 1, in which case it is not numbered.
A Warning indicates a potential problem in the content file(s) that the user told OpenMW to load. E.g. this might cause an object to not display at all or as intended, however the rest of the game will run fine.
An Error, however, is more likely to be a bug with the engine itself - it means that basic assumptions have been violated and the engine might not run correctly anymore.
The above mostly applies to errors/warnings during game-play; startup issues are handled differently: when a file is completely invalid/corrupted to the point that the engine can not start, that might cause messages that are worded as Error due to the severity of the issue but are not necessarily the engine's fault.
Hopefully, being a little more consistent here will alleviate confusion among users as to when a log message should be reported and to whom.
