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Fix #812: recovered stair dlevel

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Stair dlevels weren't being restored with the correct values when
recovered after the game crashed, apparently because they weren't being
reset back to their 'absolute' level from a 'relative' level.  I'm not
totally sure of why this affected only recovered games (maybe that's the
only time when the 'relative' stair values are used?) but this fix seems
to work.

Fixes #812
This commit is contained in:
Michael Meyer
2022-07-01 12:29:47 -04:00
committed by PatR
parent 70b8bc04e7
commit cc46da90e0
3 changed files with 14 additions and 4 deletions
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6
src/save.c
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@@ -717,7 +717,9 @@ save_stairs(NHFILE* nhfp)
while (stway) {
if (perform_bwrite(nhfp)) {
if (stway->tolev.dnum == u.uz.dnum) {
boolean use_relative = (g.program_state.restoring != REST_GSTATE
&& stway->tolev.dnum == u.uz.dnum);
if (use_relative) {
/* make dlevel relative to current level */
stway->tolev.dlevel -= u.uz.dlevel;
}
@@ -725,7 +727,7 @@ save_stairs(NHFILE* nhfp)
bwrite(nhfp->fd, (genericptr_t) &buflen, sizeof buflen);
bwrite(nhfp->fd, (genericptr_t) stway, sizeof *stway);
}
if (stway->tolev.dnum == u.uz.dnum) {
if (use_relative) {
/* reset staiway dlevel back to absolute */
stway->tolev.dlevel += u.uz.dlevel;
}