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/* SCCS Id: @(#)display.h 3.4 1999/11/30 */
/* Copyright (c) Dean Luick, with acknowledgements to Kevin Darcy */
/* and Dave Cohrs, 1990. */
/* NetHack may be freely redistributed. See license for details. */
#ifndef DISPLAY_H
#define DISPLAY_H
#ifndef VISION_H
#include "vision.h"
#endif
#ifndef MONDATA_H
#include "mondata.h" /* for mindless() */
#endif
#ifndef INVISIBLE_OBJECTS
#define vobj_at(x,y) (level.objects[x][y])
#endif
/*
* sensemon()
*
* Returns true if the hero can sense the given monster. This includes
* monsters that are hiding or mimicing other monsters.
*/
#define tp_sensemon(mon) ( /* The hero can always sense a monster IF: */\
(!mindless(mon->data)) && /* 1. the monster has a brain to sense AND */\
((Blind && Blind_telepat) || /* 2a. hero is blind and telepathic OR */\
/* 2b. hero is using a telepathy inducing */\
/* object and in range */\
(Unblind_telepat && \
(distu(mon->mx, mon->my) <= (BOLT_LIM * BOLT_LIM)))) \
)
#define sensemon(mon) (tp_sensemon(mon) || Detect_monsters || MATCH_WARN_OF_MON(mon))
/*
* mon_warning() is used to warn of any dangerous monsters in your
* vicinity, and a glyph representing the warning level is displayed.
*/
#define mon_warning(mon) (Warning && !(mon)->mpeaceful && \
(distu((mon)->mx, (mon)->my) < 100) && \
(((int) ((mon)->m_lev / 4)) >= flags.warnlevel))
/*
* mon_visible()
*
* Returns true if the hero can see the monster. It is assumed that the
* hero can physically see the location of the monster. The function
* vobj_at() returns a pointer to an object that the hero can see there.
* Infravision is not taken into account.
*/
#define mon_visible(mon) ( /* The hero can see the monster */\
/* IF the monster */\
(!mon->minvis || See_invisible) && /* 1. is not invisible AND */\
(!mon->mundetected) && /* 2. not an undetected hider */\
(!(mon->mburied || u.uburied)) /* 3. neither you or it is buried */\
)
/*
* see_with_infrared()
*
* This function is true if the player can see a monster using infravision.
* The caller must check for invisibility (invisible monsters are also
* invisible to infravision), because this is usually called from within
* canseemon() or canspotmon() which already check that.
*/
#define see_with_infrared(mon) (!Blind && Infravision && infravisible(mon->data) && couldsee(mon->mx, mon->my))
/*
* canseemon()
*
* This is the globally used canseemon(). It is not called within the display
* routines. Like mon_visible(), but it checks to see if the hero sees the
* location instead of assuming it. (And also considers worms.)
*/
#define canseemon(mon) ((mon->wormno ? worm_known(mon) : \
(cansee(mon->mx, mon->my) || see_with_infrared(mon))) \
&& mon_visible(mon))
/*
* canspotmon(mon)
*
* This function checks whether you can either see a monster or sense it by
* telepathy, and is what you usually call for monsters about which nothing is
* known.
*/
#define canspotmon(mon) \
(canseemon(mon) || sensemon(mon))
/* knowninvisible(mon)
* This one checks to see if you know a monster is both there and invisible.
* 1) If you can see the monster and have see invisible, it is assumed the
* monster is transparent, but visible in some manner. (Earlier versions of
* Nethack were really inconsistent on this.)
* 2) If you can't see the monster, but can see its location and you have
* telepathy that works when you can see, you can tell that there is a
* creature in an apparently empty spot.
* Infravision is not relevant; we assume that invisible monsters are also
* invisible to infravision.
*/
#define knowninvisible(mon) \
(mtmp->minvis && \
((cansee(mon->mx, mon->my) && (See_invisible || Detect_monsters)) || \
(!Blind && (HTelepat & ~INTRINSIC) && \
distu(mon->mx, mon->my) <= (BOLT_LIM * BOLT_LIM) \
) \
) \
)
/*
* is_safepet(mon)
*
* A special case check used in attack() and domove(). Placing the
* definition here is convenient.
*/
#define is_safepet(mon) \
(mon && mon->mtame && canspotmon(mon) && flags.safe_dog \
&& !Confusion && !Hallucination && !Stunned)
/*
* canseeself()
* senseself()
*
* This returns true if the hero can see her/himself.
*
* The u.uswallow check assumes that you can see yourself even if you are
* invisible. If not, then we don't need the check.
*/
#define canseeself() (Blind || u.uswallow || (!Invisible && !u.uundetected))
#define senseself() (canseeself() || Unblind_telepat || Detect_monsters)
/*
* random_monster()
* random_object()
* random_trap()
*
* Respectively return a random monster, object, or trap number.
*/
#define random_monster() rn2(NUMMONS)
#define random_object() rn1(NUM_OBJECTS-1,1)
#define random_trap() rn1(TRAPNUM-1,1)
/*
* what_obj()
* what_mon()
* what_trap()
*
* If hallucinating, choose a random object/monster, otherwise, use the one
* given.
*/
#define what_obj(obj) (Hallucination ? random_object() : obj)
#define what_mon(mon) (Hallucination ? random_monster() : mon)
#define what_trap(trp) (Hallucination ? random_trap() : trp)
/*
* covers_objects()
* covers_traps()
*
* These routines are true if what is really at the given location will
* "cover" any objects or traps that might be there.
*/
#define covers_objects(xx,yy) \
((is_pool(xx,yy) && !Underwater) || (levl[xx][yy].typ == LAVAPOOL))
#define covers_traps(xx,yy) covers_objects(xx,yy)
/*
* tmp_at() control calls.
*/
#define DISP_BEAM (-1) /* Keep all glyphs showing & clean up at end. */
#define DISP_FLASH (-2) /* Clean up each glyph before displaying new one. */
#define DISP_ALWAYS (-3) /* Like flash, but still displayed if not visible. */
#define DISP_CHANGE (-4) /* Change glyph. */
#define DISP_END (-5) /* Clean up. */
#define DISP_FREEMEM (-6) /* Free all memory during exit only. */
/* Total number of cmap indices in the sheild_static[] array. */
#define SHIELD_COUNT 21
/*
* display_self()
*
* Display the hero. It is assumed that all checks necessary to determine
* _if_ the hero can be seen have already been done.
*/
#ifdef STEED
#define maybe_display_usteed (u.usteed && mon_visible(u.usteed)) ? \
ridden_mon_to_glyph(u.usteed) :
#else
#define maybe_display_usteed /* empty */
#endif
#define display_self() \
show_glyph(u.ux, u.uy, \
maybe_display_usteed /* else */ \
youmonst.m_ap_type == M_AP_NOTHING ? \
hero_glyph : \
youmonst.m_ap_type == M_AP_FURNITURE ? \
cmap_to_glyph(youmonst.mappearance) : \
youmonst.m_ap_type == M_AP_OBJECT ? \
objnum_to_glyph(youmonst.mappearance) : \
/* else M_AP_MONSTER */ monnum_to_glyph(youmonst.mappearance))
/*
* A glyph is an abstraction that represents a _unique_ monster, object,
* dungeon part, or effect. The uniqueness is important. For example,
* It is not enough to have four (one for each "direction") zap beam glyphs,
* we need a set of four for each beam type. Why go to so much trouble?
* Because it is possible that any given window dependent display driver
* [print_glyph()] can produce something different for each type of glyph.
* That is, a beam of cold and a beam of fire would not only be different
* colors, but would also be represented by different symbols.
*
* Glyphs are grouped for easy accessibility:
*
* monster Represents all the wild (not tame) monsters. Count: NUMMONS.
*
* pet Represents all of the tame monsters. Count: NUMMONS
*
* invisible Invisible monster placeholder. Count: 1
*
* detect Represents all detected monsters. Count: NUMMONS
*
* corpse One for each monster. Count: NUMMONS
*
* ridden Represents all monsters being ridden. Count: NUMMONS
*
* object One for each object. Count: NUM_OBJECTS
*
* cmap One for each entry in the character map. The character map
* is the dungeon features and other miscellaneous things.
* Count: MAXPCHARS
*
* explosions A set of nine for each of the following seven explosion types:
* dark, noxious, muddy, wet, magical, fiery, frosty.
* The nine positions represent those surrounding the hero.
* Count: MAXEXPCHARS * EXPL_MAX (EXPL_MAX is defined in hack.h)
*
* zap beam A set of four (there are four directions) for each beam type.
* The beam type is shifted over 2 positions and the direction
* is stored in the lower 2 bits. Count: NUM_ZAP << 2
*
* swallow A set of eight for each monster. The eight positions rep-
* resent those surrounding the hero. The monster number is
* shifted over 3 positions and the swallow position is stored
* in the lower three bits. Count: NUMMONS << 3
*
* warning A set of six representing the different warning levels.
*
* The following are offsets used to convert to and from a glyph.
*/
#define NUM_ZAP 8 /* number of zap beam types */
#define GLYPH_MON_OFF 0
#define GLYPH_PET_OFF (NUMMONS + GLYPH_MON_OFF)
#define GLYPH_INVIS_OFF (NUMMONS + GLYPH_PET_OFF)
#define GLYPH_DETECT_OFF (1 + GLYPH_INVIS_OFF)
#define GLYPH_BODY_OFF (NUMMONS + GLYPH_DETECT_OFF)
#define GLYPH_RIDDEN_OFF (NUMMONS + GLYPH_BODY_OFF)
#define GLYPH_OBJ_OFF (NUMMONS + GLYPH_RIDDEN_OFF)
#define GLYPH_CMAP_OFF (NUM_OBJECTS + GLYPH_OBJ_OFF)
#define GLYPH_EXPLODE_OFF ((MAXPCHARS - MAXEXPCHARS) + GLYPH_CMAP_OFF)
#define GLYPH_ZAP_OFF ((MAXEXPCHARS * EXPL_MAX) + GLYPH_EXPLODE_OFF)
#define GLYPH_SWALLOW_OFF ((NUM_ZAP << 2) + GLYPH_ZAP_OFF)
#define GLYPH_WARNING_OFF ((NUMMONS << 3) + GLYPH_SWALLOW_OFF)
#define MAX_GLYPH (WARNCOUNT + GLYPH_WARNING_OFF)
#define NO_GLYPH MAX_GLYPH
#define GLYPH_INVISIBLE GLYPH_INVIS_OFF
#define warning_to_glyph(mwarnlev) ((mwarnlev)+GLYPH_WARNING_OFF)
#define mon_to_glyph(mon) ((int) what_mon(monsndx((mon)->data))+GLYPH_MON_OFF)
#define detected_mon_to_glyph(mon) ((int) what_mon(monsndx((mon)->data))+GLYPH_DETECT_OFF)
#define ridden_mon_to_glyph(mon) ((int) what_mon(monsndx((mon)->data))+GLYPH_RIDDEN_OFF)
#define pet_to_glyph(mon) ((int) what_mon(monsndx((mon)->data))+GLYPH_PET_OFF)
/* This has the unfortunate side effect of needing a global variable */
/* to store a result. 'otg_temp' is defined and declared in decl.{ch}. */
#define obj_to_glyph(obj) \
(Hallucination ? \
((otg_temp = random_object()) == CORPSE ? \
random_monster() + GLYPH_BODY_OFF : \
otg_temp + GLYPH_OBJ_OFF) : \
((obj)->otyp == CORPSE ? \
(int) (obj)->corpsenm + GLYPH_BODY_OFF : \
(int) (obj)->otyp + GLYPH_OBJ_OFF))
#define cmap_to_glyph(cmap_idx) ((int) (cmap_idx) + GLYPH_CMAP_OFF)
#define explosion_to_glyph(expltype,idx) \
((((expltype) * MAXEXPCHARS) + ((idx) - S_explode1)) + GLYPH_EXPLODE_OFF)
#define trap_to_glyph(trap) \
cmap_to_glyph(trap_to_defsym(what_trap((trap)->ttyp)))
/* Not affected by hallucination. Gives a generic body for CORPSE */
#define objnum_to_glyph(onum) ((int) (onum) + GLYPH_OBJ_OFF)
#define monnum_to_glyph(mnum) ((int) (mnum) + GLYPH_MON_OFF)
#define detected_monnum_to_glyph(mnum) ((int) (mnum) + GLYPH_DETECT_OFF)
#define ridden_monnum_to_glyph(mnum) ((int) (mnum) + GLYPH_RIDDEN_OFF)
#define petnum_to_glyph(mnum) ((int) (mnum) + GLYPH_PET_OFF)
/* The hero's glyph when seen as a monster.
*/
#define hero_glyph \
monnum_to_glyph((Upolyd || !iflags.showrace) ? u.umonnum : \
(flags.female && urace.femalenum != NON_PM) ? urace.femalenum : \
urace.malenum)
/*
* Change the given glyph into it's given type. Note:
* 1) Pets, detected, and ridden monsters are animals and are converted
* to the proper monster number.
* 2) Bodies are all mapped into the generic CORPSE object
* 3) If handed a glyph out of range for the type, these functions
* will return NO_GLYPH (see exception below)
* 4) glyph_to_swallow() does not return a showsyms[] index, but an
* offset from the first swallow symbol. If handed something
* out of range, it will return zero (for lack of anything better
* to return).
*/
#define glyph_to_mon(glyph) \
(glyph_is_normal_monster(glyph) ? ((glyph)-GLYPH_MON_OFF) : \
glyph_is_pet(glyph) ? ((glyph)-GLYPH_PET_OFF) : \
glyph_is_detected_monster(glyph) ? ((glyph)-GLYPH_DETECT_OFF) : \
glyph_is_ridden_monster(glyph) ? ((glyph)-GLYPH_RIDDEN_OFF) : \
NO_GLYPH)
#define glyph_to_obj(glyph) \
(glyph_is_body(glyph) ? CORPSE : \
glyph_is_normal_object(glyph) ? ((glyph)-GLYPH_OBJ_OFF) : \
NO_GLYPH)
#define glyph_to_trap(glyph) \
(glyph_is_trap(glyph) ? \
((int) defsym_to_trap((glyph) - GLYPH_CMAP_OFF)) : \
NO_GLYPH)
#define glyph_to_cmap(glyph) \
(glyph_is_cmap(glyph) ? ((glyph) - GLYPH_CMAP_OFF) : \
NO_GLYPH)
#define glyph_to_swallow(glyph) \
(glyph_is_swallow(glyph) ? (((glyph) - GLYPH_SWALLOW_OFF) & 0x7) : \
0)
#define glyph_to_warning(glyph) \
(glyph_is_warning(glyph) ? ((glyph) - GLYPH_WARNING_OFF) : \
NO_GLYPH);
/*
* Return true if the given glyph is what we want. Note that bodies are
* considered objects.
*/
#define glyph_is_monster(glyph) \
(glyph_is_normal_monster(glyph) \
|| glyph_is_pet(glyph) \
|| glyph_is_ridden_monster(glyph) \
|| glyph_is_detected_monster(glyph))
#define glyph_is_normal_monster(glyph) \
((glyph) >= GLYPH_MON_OFF && (glyph) < (GLYPH_MON_OFF+NUMMONS))
#define glyph_is_pet(glyph) \
((glyph) >= GLYPH_PET_OFF && (glyph) < (GLYPH_PET_OFF+NUMMONS))
#define glyph_is_body(glyph) \
((glyph) >= GLYPH_BODY_OFF && (glyph) < (GLYPH_BODY_OFF+NUMMONS))
#define glyph_is_ridden_monster(glyph) \
((glyph) >= GLYPH_RIDDEN_OFF && (glyph) < (GLYPH_RIDDEN_OFF+NUMMONS))
#define glyph_is_detected_monster(glyph) \
((glyph) >= GLYPH_DETECT_OFF && (glyph) < (GLYPH_DETECT_OFF+NUMMONS))
#define glyph_is_invisible(glyph) ((glyph) == GLYPH_INVISIBLE)
#define glyph_is_normal_object(glyph) \
((glyph) >= GLYPH_OBJ_OFF && (glyph) < (GLYPH_OBJ_OFF+NUM_OBJECTS))
#define glyph_is_object(glyph) \
(glyph_is_normal_object(glyph) \
|| glyph_is_body(glyph))
#define glyph_is_trap(glyph) \
((glyph) >= (GLYPH_CMAP_OFF+trap_to_defsym(1)) && \
(glyph) < (GLYPH_CMAP_OFF+trap_to_defsym(1)+TRAPNUM))
#define glyph_is_cmap(glyph) \
((glyph) >= GLYPH_CMAP_OFF && (glyph) < (GLYPH_CMAP_OFF+MAXPCHARS))
#define glyph_is_swallow(glyph) \
((glyph) >= GLYPH_SWALLOW_OFF && (glyph) < (GLYPH_SWALLOW_OFF+(NUMMONS << 3)))
#define glyph_is_warning(glyph) \
((glyph) >= GLYPH_WARNING_OFF && (glyph) < (GLYPH_WARNING_OFF + WARNCOUNT))
#endif /* DISPLAY_H */
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