Build 3157
SVN-
set first walls more conveniently on split in one special case.
Mostra dettagli
Specifically, if the first wall of the sector-to-split is to the left or right of the *start* of the splitting line AND the sector has no TROR extensions, make these two the new nextwalls of the respective split sectors.
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Generale
Rewrite old-version-savegame signaling in a cleaner fashion.