nethack-gwaa-kiwi/nethack
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cursed potions of invisibility for monsters

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Extend the recently changed behavior for cursed potion of invisibility.

Monsters won't drink potions of invisibility if already invisible so
can't accidentally or voluntarily make themselves visible again, but
let player make them become visible by hitting them with thrown or
wielded cursed potion of invisibility.

They don't have any concept of temporary invisibility that might let
them remain invisible while losing permanent invisibility, so they
just lose the latter and immediately become visible.
This commit is contained in:
PatR
2026-02-12 10:33:09 -08:00
parent b074657f2b
commit a561538c2a
8 changed files with 35 additions and 22 deletions
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19
src/potion.c
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@@ -1,4 +1,4 @@
/* NetHack 3.7 potion.c $NHDT-Date: 1737605675 2025/01/22 20:14:35 $ $NHDT-Branch: NetHack-3.7 $:$NHDT-Revision: 1.274 $ */
/* NetHack 3.7 potion.c $NHDT-Date: 1770949988 2026/02/12 18:33:08 $ $NHDT-Branch: NetHack-3.7 $:$NHDT-Revision: 1.279 $ */
/* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
/*-Copyright (c) Robert Patrick Rankin, 2013. */
/* NetHack may be freely redistributed. See license for details. */
@@ -1777,12 +1777,19 @@ potionhit(struct monst *mon, struct obj *obj, int how)
mon->mconf = TRUE;
break;
case POT_INVISIBILITY: {
boolean sawit = canspotmon(mon);
boolean sawit = canspotmon(mon),
cursed_potion = obj->cursed ? TRUE : FALSE;
angermon = FALSE;
mon_set_minvis(mon);
if (sawit && !canspotmon(mon) && cansee(mon->mx, mon->my))
map_invisible(mon->mx, mon->my);
angermon = mon->minvis && cursed_potion;
mon_set_minvis(mon, cursed_potion);
if (sawit && !canspotmon(mon)) {
if (cansee(mon->mx, mon->my))
map_invisible(mon->mx, mon->my);
} else if (!sawit && canspotmon(mon)) {
/* if an invisible mon glyph was present, mon_set_minvis()'s
newsym() has gotten rid of it */
pline("%s appears!", Monnam(mon));
}
break;
}
case POT_SLEEPING: