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(diridx): New. Use instead of chkdir() where direction characters

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must be valid.  Oopses on bad direction characters.
(pathtoxy, ac_encounter): Bad direction characters used to lead to bad
array subscript and potential disaster.
(pathrange, path): Stop on DIR_STOP as well as on bad direction
characters.  This is just for consistency with other code; DIR_STOP
should occur only last in a path here.
(sail_nav_fleet, nav_ship): No change except for the oops.
This commit is contained in:
Markus Armbruster 2005-09-25 09:49:36 +00:00
parent a88f12017e
commit dfa56cb0ef
6 changed files with 31 additions and 18 deletions
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6
src/lib/update/sail.c
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@ -262,10 +262,10 @@ sail_nav_fleet(struct fltheadstr *fltp)
own = sp->shp_own;
fltp_to_list(fltp, &ship_list); /* hack -KHS 1995 */
for (s = sp->shp_path; (*s) && (fltp->maxmoves > 0); s++) {
dir = chkdir(*s, DIR_STOP, DIR_LAST);
if (0 != (error = shp_nav_one_sector(&ship_list, dir, own, 0)))
dir = diridx(*s);
if (0 != shp_nav_one_sector(&ship_list, dir, own, 0))
fltp->maxmoves = 1;
--(fltp->maxmoves);
--fltp->maxmoves;
}
shp_put(&ship_list, own);
getship(sp->shp_uid, &ship);