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report ice's thaw state

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Classify nearby ice as "solid" (no melt timer), "sturdy" (more than
1000 turns left), "steady" (101 to 1000 turns left), "unsteady" (51
to 100 turns left), "thin" (15 to 50 turns left), or "slushy" (1 to
14 turns left, matching walking on ice with the Warning attribute).
[I'm not thrilled with "steady" and particularly "unsteady".]

I was originally going to do this just for probing downward, but ended
up also doing it for look-here and getpos's autodescribe.  It nearly
got out of hand and touched more files than anticipated.

'mention_decor' ought to treat moving from ice firmer than thin to
thin or slushy, from thin to slushy, from slushy to any other, and
from thin to firmer as if moving onto different terrain but I haven't
attempted to tackle that.

The melt timer could work more like a candle's burn timer, triggering
at intermediate stages and resetting itself, so that ice which changes
to a weaker state under the hero could be reported to the player.  But
this doesn't implement that.
This commit is contained in:
PatR
2023-10-25 13:26:03 -07:00
parent 7bf3888118
commit 04d6789c98
10 changed files with 156 additions and 44 deletions
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3
doc/fixes3-7-0.txt
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@@ -1,4 +1,4 @@
$NHDT-Branch: NetHack-3.7 $:$NHDT-Revision: 1.1268 $ $NHDT-Date: 1698090922 2023/10/23 19:55:22 $
$NHDT-Branch: NetHack-3.7 $:$NHDT-Revision: 1.1271 $ $NHDT-Date: 1698264796 2023/10/25 20:13:16 $
General Fixes and Modified Features
-----------------------------------
@@ -2284,6 +2284,7 @@ applying gold pieces will flip one and report "heads" or "tails"; with a stack
of more than one, normally the flipped coin will rejoin the stack
during enlightenment and end-of-game disclosure, use contraction "<verb>n't"
for "<verb> not"
give feedback about the thaw status of ice terrain
Platform- and/or Interface-Specific New Features

6
include/decl.h
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@@ -1,4 +1,4 @@
/* NetHack 3.7 decl.h $NHDT-Date: 1686726249 2023/06/14 07:04:09 $ $NHDT-Branch: NetHack-3.7 $:$NHDT-Revision: 1.333 $ */
/* NetHack 3.7 decl.h $NHDT-Date: 1698264758 2023/10/25 20:12:38 $ $NHDT-Branch: NetHack-3.7 $:$NHDT-Revision: 1.339 $ */
/* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
/*-Copyright (c) Michael Allison, 2007. */
/* NetHack may be freely redistributed. See license for details. */
@@ -322,6 +322,10 @@ struct instance_globals_d {
but that would require all xname() and doname() calls to be modified */
int distantname;
/* pickup.c */
boolean decor_fumble_override;
boolean decor_levitate_override;
boolean havestate;
unsigned long magic; /* validate that structure layout is preserved */
};

4
include/extern.h
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@@ -1,4 +1,4 @@
/* NetHack 3.7 extern.h $NHDT-Date: 1695159584 2023/09/19 21:39:44 $ $NHDT-Branch: NetHack-3.7 $:$NHDT-Revision: 1.1287 $ */
/* NetHack 3.7 extern.h $NHDT-Date: 1698264776 2023/10/25 20:12:56 $ $NHDT-Branch: NetHack-3.7 $:$NHDT-Revision: 1.1296 $ */
/* Copyright (c) Steve Creps, 1988. */
/* NetHack may be freely redistributed. See license for details. */
@@ -2099,6 +2099,7 @@ extern char *monhealthdescr(struct monst *mon, boolean, char *);
extern void mhidden_description(struct monst *, boolean, char *);
extern boolean object_from_map(int, coordxy, coordxy, struct obj **);
extern const char *waterbody_name(coordxy, coordxy);
extern const char *ice_descr(coordxy, coordxy, char *);
extern boolean ia_checkfile(struct obj *);
extern int do_screen_description(coord, boolean, int, char *, const char **,
struct permonst **);
@@ -2162,6 +2163,7 @@ extern void getlock(void);
extern int collect_obj_classes(char *, struct obj *, boolean,
boolean(*)(struct obj *), int *);
extern boolean rider_corpse_revival(struct obj *, boolean);
extern void force_decor(boolean);
extern void deferred_decor(boolean);
extern boolean menu_class_present(int);
extern void add_valid_menu_class(int);

3
include/flag.h
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@@ -1,4 +1,4 @@
/* NetHack 3.7 flag.h $NHDT-Date: 1684791761 2023/05/22 21:42:41 $ $NHDT-Branch: NetHack-3.7 $:$NHDT-Revision: 1.217 $ */
/* NetHack 3.7 flag.h $NHDT-Date: 1698264779 2023/10/25 20:12:59 $ $NHDT-Branch: NetHack-3.7 $:$NHDT-Revision: 1.224 $ */
/* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
/*-Copyright (c) Michael Allison, 2006. */
/* NetHack may be freely redistributed. See license for details. */
@@ -290,6 +290,7 @@ struct instance_flags {
boolean zerocomp; /* write zero-compressed save files */
boolean rlecomp; /* alternative to zerocomp; run-length encoding
* compression of levels when writing savefile */
schar ice_rating; /* ice_descr()'s classification of ice terrain */
schar prev_decor; /* 'mention_decor' just mentioned this */
uchar num_pad_mode;
uchar bouldersym; /* symbol for boulder display */

5
src/decl.c
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@@ -1,4 +1,4 @@
/* NetHack 3.7 decl.c $NHDT-Date: 1686726255 2023/06/14 07:04:15 $ $NHDT-Branch: NetHack-3.7 $:$NHDT-Revision: 1.286 $ */
/* NetHack 3.7 decl.c $NHDT-Date: 1698264780 2023/10/25 20:13:00 $ $NHDT-Branch: NetHack-3.7 $:$NHDT-Revision: 1.293 $ */
/* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
/*-Copyright (c) Michael Allison, 2009. */
/* NetHack may be freely redistributed. See license for details. */
@@ -328,6 +328,9 @@ const struct instance_globals_d g_init_d = {
DUMMY, /* disco */
/* objname.c */
0, /* distantname */
/* pickup.c */
FALSE, /* decor_fumble_override */
FALSE, /* decor_levitate_override */
TRUE, /* havestate*/
IVMAGIC /* d_magic to validate that structure layout has been preserved */
};

27
src/invent.c
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@@ -1,4 +1,4 @@
/* NetHack 3.7 invent.c $NHDT-Date: 1698090922 2023/10/23 19:55:22 $ $NHDT-Branch: NetHack-3.7 $:$NHDT-Revision: 1.456 $ */
/* NetHack 3.7 invent.c $NHDT-Date: 1698264784 2023/10/25 20:13:04 $ $NHDT-Branch: NetHack-3.7 $:$NHDT-Revision: 1.457 $ */
/* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
/*-Copyright (c) Derek S. Ray, 2015. */
/* NetHack may be freely redistributed. See license for details. */
@@ -4224,7 +4224,7 @@ dfeature_at(coordxy x, coordxy y, char *buf)
else if (is_lava(x, y))
cmap = S_lava; /* "molten lava" */
else if (is_ice(x, y))
cmap = S_ice; /* "ice" */
dfeature = ice_descr(x, y, altbuf), cmap = -1; /* "ice" */
else if (is_pool(x, y))
dfeature = "pool of water";
else if (IS_SINK(ltyp))
@@ -4330,19 +4330,28 @@ look_here(
if (dfeature && !strncmp(dfeature, "altar ", 6)) {
/* don't say "altar" twice, dfeature has more info */
You("try to feel what is here.");
} else if (SURFACE_AT(u.ux, u.uy) == ICE) {
/* using describe_decor() to handle ice is simpler than
replicating it in the conditional message construction */
if (!flags.mention_decor || iflags.prev_decor == ICE)
force_decor(FALSE);
/* plain "ice" if blind and levitating, otherwise "solid ice" &c;
"There is [thin ]ice here. You try to feel what is on it." */
You("try to feel what is on it.");
skip_dfeature = TRUE; /* ice already described */
} else {
const char *where = (Blind && !can_reach_floor(TRUE))
? "lying beneath you"
boolean cant_reach = !can_reach_floor(TRUE);
const char *surf = surface(u.ux, u.uy),
*where = cant_reach ? "lying beneath you"
: "lying here on the ",
*onwhat = (Blind && !can_reach_floor(TRUE))
? ""
: surface(u.ux, u.uy);
*onwhat = cant_reach ? "" : surf;
You("try to feel what is %s%s.", drift ? "floating here" : where,
drift ? "" : onwhat);
if (dfeature && !drift && !strcmp(dfeature, surf))
skip_dfeature = TRUE; /* terrain feature already identified */
}
if (dfeature && !drift && !strcmp(dfeature, surface(u.ux, u.uy)))
dfeature = 0; /* ice already identified */
trap = t_at(u.ux, u.uy);
if (!can_reach_floor(trap && is_pit(trap->ttyp))) {
pline("But you can't reach it!");

9
src/objnam.c
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@@ -1,4 +1,4 @@
/* NetHack 3.7 objnam.c $NHDT-Date: 1686386790 2023/06/10 08:46:30 $ $NHDT-Branch: NetHack-3.7 $:$NHDT-Revision: 1.392 $ */
/* NetHack 3.7 objnam.c $NHDT-Date: 1698264786 2023/10/25 20:13:06 $ $NHDT-Branch: NetHack-3.7 $:$NHDT-Revision: 1.398 $ */
/* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
/*-Copyright (c) Robert Patrick Rankin, 2011. */
/* NetHack may be freely redistributed. See license for details. */
@@ -1858,7 +1858,7 @@ singular(struct obj* otmp, char* (*func)(OBJ_P))
char *
just_an(char *outbuf, const char *str)
{
char c0;
char c0, *p;
*outbuf = '\0';
c0 = lowc(*str);
@@ -1866,7 +1866,10 @@ just_an(char *outbuf, const char *str)
/* single letter; might be used for named fruit or a musical note */
Strcpy(outbuf, strchr("aefhilmnosx", c0) ? "an " : "a ");
} else if (!strncmpi(str, "the ", 4) || !strcmpi(str, "molten lava")
|| !strcmpi(str, "iron bars") || !strcmpi(str, "ice")) {
|| !strcmpi(str, "iron bars") || !strcmpi(str, "ice")
|| !strncmpi(str, "frozen ", 7) /* ice while hallucinating */
/* thawing ice ("solid ice", "thin ice", &c) */
|| ((p = strchr(str, ' ')) != 0 && !strcmpi(p, " ice"))) {
; /* no article */
} else {
/* normal case is "an <vowel>" or "a <consonant>" */

47
src/pager.c
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@@ -1,4 +1,4 @@
/* NetHack 3.7 pager.c $NHDT-Date: 1655120486 2022/06/13 11:41:26 $ $NHDT-Branch: NetHack-3.7 $:$NHDT-Revision: 1.225 $ */
/* NetHack 3.7 pager.c $NHDT-Date: 1698264788 2023/10/25 20:13:08 $ $NHDT-Branch: NetHack-3.7 $:$NHDT-Revision: 1.252 $ */
/* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
/*-Copyright (c) Robert Patrick Rankin, 2018. */
/* NetHack may be freely redistributed. See license for details. */
@@ -482,16 +482,12 @@ const char *
waterbody_name(coordxy x, coordxy y)
{
static char pooltype[40];
struct rm *lev;
schar ltyp;
boolean hallucinate = Hallucination && !gp.program_state.gameover;
if (!isok(x, y))
return "drink"; /* should never happen */
lev = &levl[x][y];
ltyp = lev->typ;
if (ltyp == DRAWBRIDGE_UP)
ltyp = db_under_typ(lev->drawbridgemask);
ltyp = SURFACE_AT(x, y);
if (ltyp == LAVAPOOL) {
Snprintf(pooltype, sizeof pooltype, "molten %s", hliquid("lava"));
@@ -535,6 +531,43 @@ waterbody_name(coordxy x, coordxy y)
return "water"; /* don't hallucinate this as some other liquid */
}
const char *
ice_descr(coordxy x, coordxy y, char *outbuf)
{
static const char *const icetyp[] = {
"solid", /* 0: not melting */
"sturdy", /* 1: more than 1000 turns left */
"steady", /* 2: 101..1000 turns left */
"unsteady", /* 3: 51..100 turns left */
"thin", /* 4: 15..50 turns left */
"slushy", /* 5: 1..14 turns left; matches Warning on ice */
};
/* same formula as is used in distant_name() for objects */
int r = (u.xray_range > 2) ? u.xray_range : 2,
neardist = (r * r) * 2 - r; /* same as r*r + r*(r-1) */
iflags.ice_rating = -1; /* secondary output, for ' mention_decor' */
if (levl[x][y].typ != ICE) {
Sprintf(outbuf, "[ice:%d?]", (int) levl[x][y].typ);
} else if ((distu(x, y) > neardist
|| (!cansee(x, y) && (!u_at(x, y) || Levitation)))
&& !gd.decor_levitate_override) { /* probe_decor(pickup.c) */
Strcpy(outbuf, waterbody_name(x, y)); /* "ice" or "frozen <liquid>" */
} else {
long time_left = spot_time_left(x, y, MELT_ICE_AWAY);
iflags.ice_rating = !time_left ? 0 /* solid */
: (time_left > 1000L) ? 1 /* sturdy */
: (time_left > 100L) ? 2 /* steady */
: (time_left > 50L) ? 3 /* unsteady */
: (time_left > 14L) ? 4 /* thin */
: 5; /* slushy */
Sprintf(outbuf, "%s %s", icetyp[(int) iflags.ice_rating],
waterbody_name(x, y));
}
return outbuf;
}
/*
* Return the name of the glyph found at (x,y).
* If not hallucinating and the glyph is a monster, also monster data.
@@ -1442,6 +1475,8 @@ do_screen_description(
pm = lookat(cc.x, cc.y, look_buf, monbuf);
if (pm && for_supplement)
*for_supplement = pm;
if (!strcmp(look_buf, "ice"))
(void) ice_descr(cc.x, cc.y, look_buf);
if (look_buf[0] != '\0')
*firstmatch = look_buf;

50
src/pickup.c
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@@ -1,4 +1,4 @@
/* NetHack 3.7 pickup.c $NHDT-Date: 1654760203 2022/06/09 07:36:43 $ $NHDT-Branch: NetHack-3.7 $:$NHDT-Revision: 1.310 $ */
/* NetHack 3.7 pickup.c $NHDT-Date: 1698264789 2023/10/25 20:13:09 $ $NHDT-Branch: NetHack-3.7 $:$NHDT-Revision: 1.339 $ */
/* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
/*-Copyright (c) Robert Patrick Rankin, 2012. */
/* NetHack may be freely redistributed. See license for details. */
@@ -291,6 +291,25 @@ rider_corpse_revival(struct obj *obj, boolean remotely)
return TRUE;
}
/* wand of probing zapped down; perhaps hero is levitating while blind */
void
force_decor(boolean via_probing)
{
/* we don't want describe_decor() to defer feedback if hero is fumbling
with 1 turn left, or for ice_descr() to skip thawing details if hero
is probing when levitating while blind (those will be skipped for
look_here() and farlook() or autodescribe); we can't control that by
temporarily tweaking properties because that could become noticeable
if status gets updated while decor feedback is being delivered */
gd.decor_fumble_override = TRUE;
gd.decor_levitate_override = via_probing;
/* force current terrain to be different from previous location */
iflags.prev_decor = STONE;
(void) describe_decor();
gd.decor_fumble_override = gd.decor_levitate_override = FALSE;
gl.lastseentyp[u.ux][u.uy] = levl[u.ux][u.uy].typ;
}
void
deferred_decor(boolean setup) /* True: deferring, False: catching up */
{
@@ -312,7 +331,8 @@ describe_decor(void)
const char *dfeature;
int ltyp;
if ((HFumbling & TIMEOUT) == 1L && !iflags.defer_decor) {
if ((HFumbling & TIMEOUT) == 1L && !iflags.defer_decor
&& !gd.decor_fumble_override) { /* probe_decor() */
/*
* Work around a message sequencing issue: avoid
* |You are back on floor.
@@ -324,9 +344,7 @@ describe_decor(void)
return FALSE;
}
ltyp = levl[u.ux][u.uy].typ;
if (ltyp == DRAWBRIDGE_UP) /* surface for spot in front of closed db */
ltyp = db_under_typ(levl[u.ux][u.uy].drawbridgemask);
ltyp = SURFACE_AT(u.ux, u.uy);
dfeature = dfeature_at(u.ux, u.uy, fbuf);
/* we don't mention "ordinary" doors but do mention broken ones (and
@@ -337,6 +355,10 @@ describe_decor(void)
if (doorhere || Underwater
|| (ltyp == ICE && IS_POOL(iflags.prev_decor))) /* pooleffects() */
dfeature = 0;
/*
* TODO: if on ice, report moving between thicker and thinner ice (based
* on ice_descr()'s classification) as if moving onto different terrain.
*/
if (ltyp == iflags.prev_decor && !IS_FURNITURE(ltyp)) {
res = FALSE;
@@ -353,18 +375,26 @@ describe_decor(void)
Strcpy(fbuf, dfeature);
Sprintf(outbuf, "%s.", upstart(fbuf));
}
if (ltyp == ICE)
Norep("%s", outbuf);
else
pline("%s", outbuf);
} else if (!Underwater) {
if (IS_POOL(iflags.prev_decor)
|| iflags.prev_decor == LAVAPOOL
|| IS_LAVA(iflags.prev_decor)
|| iflags.prev_decor == ICE) {
const char *ground = surface(u.ux, u.uy);
if (iflags.last_msg != PLNMSG_BACK_ON_GROUND) {
const char *surf = is_ice(u.ux, u.uy)
? ice_descr(u.ux, u.uy, fbuf)
: surface(u.ux, u.uy);
if (iflags.last_msg != PLNMSG_BACK_ON_GROUND)
if (!strcmpi(surf, "floor") || !strcmpi(surf, "ground"))
surf = "solid ground";
pline("%s %s %s.",
Verbose(2, describe_decor2) ? "You are back" : "Back",
(Levitation || Flying) ? "over" : "on",
ground);
(Levitation || Flying) ? "over" : "on", surf);
}
}
}
iflags.prev_decor = ltyp;

40
src/zap.c
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@@ -1,4 +1,4 @@
/* NetHack 3.7 zap.c $NHDT-Date: 1686178723 2023/06/07 22:58:43 $ $NHDT-Branch: NetHack-3.7 $:$NHDT-Revision: 1.472 $ */
/* NetHack 3.7 zap.c $NHDT-Date: 1698264791 2023/10/25 20:13:11 $ $NHDT-Branch: NetHack-3.7 $:$NHDT-Revision: 1.481 $ */
/* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
/*-Copyright (c) Robert Patrick Rankin, 2013. */
/* NetHack may be freely redistributed. See license for details. */
@@ -3094,7 +3094,7 @@ cancel_monst(struct monst *mdef, struct obj *obj, boolean youattack,
static boolean
zap_updown(struct obj *obj) /* wand or spell */
{
boolean striking = FALSE, disclose = FALSE;
boolean striking = FALSE, disclose = FALSE, map_zapped = FALSE;
coordxy x, y, xx, yy;
int ptmp;
struct obj *otmp;
@@ -3113,9 +3113,24 @@ zap_updown(struct obj *obj) /* wand or spell */
ptmp = 0;
if (u.dz < 0) {
You("probe towards the %s.", ceiling(x, y));
} else {
} else { /* down */
const char *surf;
schar ltyp, rememberedltyp = gl.lastseentyp[x][y];
ptmp += bhitpile(obj, bhito, x, y, u.dz);
You("probe beneath the %s.", surface(x, y));
/* sequencing: zap_map() calls force_decor() for ice or furniture;
we need to call it before probing for buried objects */
ltyp = SURFACE_AT(x, y);
zap_map(x, y, obj);
map_zapped = TRUE;
if (ltyp == ICE || IS_FURNITURE(ltyp)) {
surf = "it";
if (gl.lastseentyp[x][y] != rememberedltyp)
ptmp += 1;
} else {
surf = the(surface(x, y));
}
You("probe beneath %s.", surf);
ptmp += display_binventory(x, y, TRUE);
}
if (!ptmp)
@@ -3245,6 +3260,7 @@ zap_updown(struct obj *obj) /* wand or spell */
/* note: engraving handling that used to be here has been moved
to zap_map() */
if (!map_zapped)
zap_map(x, y, obj);
} else if (u.dz < 0) {
@@ -3582,10 +3598,9 @@ zap_map(
} /* !u.uz */
if (obj->otyp == WAN_PROBING) {
schar ltyp;
/*
* Probing, either up/down or lateral.
*
* TODO: if terrain is ice, report on its thaw timer.
*/
/* map unseen terrain */
@@ -3598,8 +3613,9 @@ zap_map(
learn_it = TRUE;
}
}
ltyp = SURFACE_AT(x, y);
/* secret door gets revealed, converted into regular door */
if (levl[x][y].typ == SDOOR) {
if (ltyp == SDOOR) {
cvt_sdoor_to_door(&levl[x][y]); /* .typ = DOOR */
newsym(x, y);
if (cansee(x, y)) {
@@ -3612,12 +3628,20 @@ zap_map(
/* secret corridor likewise, although only ones within view will
still be secret; for the !cansee(x,y) case, show_map_spot()
above has already converted the spot to regular corridor */
} else if (levl[x][y].typ == SCORR) {
} else if (ltyp == SCORR) {
levl[x][y].typ = CORR;
unblock_point(x, y);
newsym(x, y);
pline("Probing exposes a secret corridor.");
learn_it = TRUE;
/* if on or over ice, describe it ("solid ice", "thin ice", &c);
likewise for furniture in case hero is levitating while blind */
} else if (ltyp == ICE || IS_FURNITURE(ltyp)) {
if (u.dz > 0) { /* down, which also means x,y == u.ux,u.uy */
force_decor(TRUE);
learn_it = TRUE;
}
}
/*
* Probing reveals undiscovered traps.