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getting knocked off flying steed

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I was trying to reproduce the reported "no monster to remove" warning
from remove_monster() when a mounted hero was knocked off jabberwocky
steed but so far haven't been able to.

While trying, I came across a more minor bug.  The hero got knocked
off a flying steed and got feedback of "you fly off" rather than
"you fall off".  Flying capability came from the steed and dismount
feedback is aware of that but calls u_locomotion() which isn't.  This
commit fixes that.

This adds some groundwork (DISMOUNT_KNOCKED) for better dismount
control.  With a map fragment of
|....
|.Du.
|....
I got knocked off my steed by the attacking dragon and ended up with
|..@.
|.Du.
|....
It would be better to prefer spot 1, then the 2s, then 3s, then 4s
(not sure about farther spots if none of those are available)
|.432
|.D@1
|.432
when forced to dismount by knockback.  This does _not_ implement that.
This commit is contained in:
PatR
2022-10-03 15:53:35 -07:00
parent a8bfeb4dca
commit 546fea7db8
3 changed files with 45 additions and 27 deletions
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43
src/uhitm.c
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@@ -1,4 +1,4 @@
/* NetHack 3.7 uhitm.c $NHDT-Date: 1650963745 2022/04/26 09:02:25 $ $NHDT-Branch: NetHack-3.7 $:$NHDT-Revision: 1.348 $ */
/* NetHack 3.7 uhitm.c $NHDT-Date: 1664837605 2022/10/03 22:53:25 $ $NHDT-Branch: NetHack-3.7 $:$NHDT-Revision: 1.364 $ */
/* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
/*-Copyright (c) Robert Patrick Rankin, 2012. */
/* NetHack may be freely redistributed. See license for details. */
@@ -1511,6 +1511,8 @@ hmon_hitmon(
return destroyed ? FALSE : TRUE;
}
RESTORE_WARNING_FORMAT_NONLITERAL
/* joust or martial arts punch is knocking the target back; that might
kill 'mon' (via trap) before known_hitum() has a chance to do so;
return True if we kill mon, False otherwise */
@@ -1586,8 +1588,6 @@ shade_aware(struct obj *obj)
return FALSE;
}
RESTORE_WARNING_FORMAT_NONLITERAL
/* used for hero vs monster and monster vs monster; also handles
monster vs hero but that won't happen because hero can't be a shade */
boolean
@@ -4593,8 +4593,8 @@ m_is_steadfast(struct monst *mtmp)
struct obj *otmp = is_u ? uwep : MON_WEP(mtmp);
/* must be on the ground */
if ((is_u && (Flying || Levitation))
|| (!is_u && (is_flyer(mtmp->data) || is_floater(mtmp->data))))
if (is_u ? (Flying || Levitation)
: (is_flyer(mtmp->data) || is_floater(mtmp->data)))
return FALSE;
if (is_art(otmp, ART_GIANTSLAYER))
@@ -4604,11 +4604,12 @@ m_is_steadfast(struct monst *mtmp)
/* monster hits another monster hard enough to knock it back? */
boolean
mhitm_knockback(struct monst *magr,
struct monst *mdef,
struct attack *mattk,
int *hitflags,
boolean weapon_used)
mhitm_knockback(
struct monst *magr, /* attacker; might be hero */
struct monst *mdef, /* defender; might be hero (only if magr isn't) */
struct attack *mattk, /* attack type and damage info */
int *hitflags, /* modified if magr or mdef dies */
boolean weapon_used) /* True: via weapon hit */
{
boolean u_agr = (magr == &g.youmonst);
boolean u_def = (mdef == &g.youmonst);
@@ -4651,10 +4652,13 @@ mhitm_knockback(struct monst *magr,
if (u_def || canseemon(mdef)) {
boolean dosteed = u_def && u.usteed;
/* uhitm: You knock the gnome back with a powerful blow! */
/* mhitu: The red dragon knocks you back with a forceful blow! */
/* mhitm: The fire giant knocks the gnome back with a forceful strike! */
/*
* uhitm: You knock the gnome back with a powerful blow!
* mhitu: The red dragon knocks you back with a forceful blow!
* mhitm: The fire giant knocks the gnome back with a forceful strike!
*
* TODO? if saddle is cursed, knock both hero and steed back?
*/
pline("%s knock%s %s %s with a %s %s!",
u_agr ? "You" : Monnam(magr),
u_agr ? "" : "s",
@@ -4662,22 +4666,25 @@ mhitm_knockback(struct monst *magr,
dosteed ? "out of your saddle" : "back",
rn2(2) ? "forceful" : "powerful",
rn2(2) ? "blow" : "strike");
} else if (u_agr) {
/* hero knocks unseen foe back; noticed by touch */
You("knock %s back!", some_mon_nam(mdef));
}
/* do the actual knockback effect */
if (u_def) {
if (u.usteed)
dismount_steed(DISMOUNT_FELL);
dismount_steed(DISMOUNT_KNOCKED);
else
hurtle(u.ux - magr->mx, u.uy - magr->my, rnd(2), FALSE);
if (!rn2(4))
make_stunned((HStun & TIMEOUT) + (long) rnd(2) + 1, TRUE);
make_stunned((HStun & TIMEOUT) + (long) rnd(2) + 1L, TRUE);
} else {
coordxy x = u_agr ? u.ux : magr->mx;
coordxy y = u_agr ? u.uy : magr->my;
mhurtle(mdef, mdef->mx - x,
mdef->my - y, rnd(2));
mhurtle(mdef, mdef->mx - x, mdef->my - y, rnd(2));
if (DEADMONSTER(mdef))
*hitflags |= MM_DEF_DIED;
else if (!rn2(4))