Source:NetHack 3.6.0/include/monst.h

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 /* NetHack 3.6	monst.h	$NHDT-Date: 1432512777 2015/05/25 00:12:57 $  $NHDT-Branch: master $:$NHDT-Revision: 1.20 $ */
 /* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
 /* NetHack may be freely redistributed.  See license for details. */
 
 #ifndef MONST_H
 #define MONST_H
 
 /* The weapon_check flag is used two ways:
  * 1) When calling mon_wield_item, is 2-6 depending on what is desired.
  * 2) Between calls to mon_wield_item, is 0 or 1 depending on whether or not
  *    the weapon is known by the monster to be cursed (so it shouldn't bother
  *    trying for another weapon).
  * I originally planned to also use 0 if the monster already had its best
  * weapon, to avoid the overhead of a call to mon_wield_item, but it turns out
  * that there are enough situations which might make a monster change its
  * weapon that this is impractical.  --KAA
  */
 #define NO_WEAPON_WANTED 0
 #define NEED_WEAPON 1
 #define NEED_RANGED_WEAPON 2
 #define NEED_HTH_WEAPON 3
 #define NEED_PICK_AXE 4
 #define NEED_AXE 5
 #define NEED_PICK_OR_AXE 6
 
 /* The following flags are used for the second argument to display_minventory
  * in invent.c:
  *
  * MINV_NOLET  If set, don't display inventory letters on monster's inventory.
  * MINV_ALL    If set, display all items in monster's inventory, otherwise
  *	       just display wielded weapons and worn items.
  */
 #define MINV_NOLET 0x01
 #define MINV_ALL 0x02
 
 #ifndef MEXTRA_H
 #include "mextra.h"
 #endif
 
 struct monst {
     struct monst *nmon;
     struct permonst *data;
     unsigned m_id;
     short mnum;      /* permanent monster index number */
     short cham;      /* if shapeshifter, orig mons[] idx goes here */
     short movement;  /* movement points (derived from permonst definition and
                         added effects */
     uchar m_lev;     /* adjusted difficulty level of monster */
     aligntyp malign; /* alignment of this monster, relative to the
                         player (positive = good to kill) */
     xchar mx, my;
     xchar mux, muy; /* where the monster thinks you are */
 #define MTSZ 4
     coord mtrack[MTSZ]; /* monster track */
     int mhp, mhpmax;
     unsigned mappearance; /* for undetected mimics and the wiz */
     uchar m_ap_type;      /* what mappearance is describing: */
 #define M_AP_NOTHING                                                 \
     0                    /* mappearance is unused -- monster appears \
                             as itself */
 #define M_AP_FURNITURE 1 /* stairs, a door, an altar, etc. */
 #define M_AP_OBJECT 2    /* an object */
 #define M_AP_MONSTER 3   /* a monster */
 
     schar mtame;                /* level of tameness, implies peaceful */
     unsigned short mintrinsics; /* low 8 correspond to mresists */
     int mspec_used;             /* monster's special ability attack timeout */
 
     Bitfield(female, 1);      /* is female */
     Bitfield(minvis, 1);      /* currently invisible */
     Bitfield(invis_blkd, 1);  /* invisibility blocked */
     Bitfield(perminvis, 1);   /* intrinsic minvis value */
     Bitfield(mcan, 1);        /* has been cancelled */
     Bitfield(mburied, 1);     /* has been buried */
     Bitfield(mundetected, 1); /* not seen in present hiding place */
                               /* implies one of M1_CONCEAL or M1_HIDE,
                                * but not mimic (that is, snake, spider,
                                * trapper, piercer, eel)
                                */
     Bitfield(mcansee, 1);     /* cansee 1, temp.blinded 0, blind 0 */
 
     Bitfield(mspeed, 2);    /* current speed */
     Bitfield(permspeed, 2); /* intrinsic mspeed value */
     Bitfield(mrevived, 1);  /* has been revived from the dead */
     Bitfield(mcloned, 1);   /* has been cloned from another */
     Bitfield(mavenge, 1);   /* did something to deserve retaliation */
     Bitfield(mflee, 1);     /* fleeing */
 
     Bitfield(mfleetim, 7);  /* timeout for mflee */
     Bitfield(msleeping, 1); /* asleep until woken */
 
     Bitfield(mblinded, 7); /* cansee 0, temp.blinded n, blind 0 */
     Bitfield(mstun, 1);    /* stunned (off balance) */
 
     Bitfield(mfrozen, 7);
     Bitfield(mcanmove, 1); /* paralysis, similar to mblinded */
 
     Bitfield(mconf, 1);     /* confused */
     Bitfield(mpeaceful, 1); /* does not attack unprovoked */
     Bitfield(mtrapped, 1);  /* trapped in a pit, web or bear trap */
     Bitfield(mleashed, 1);  /* monster is on a leash */
     Bitfield(isshk, 1);     /* is shopkeeper */
     Bitfield(isminion, 1);  /* is a minion */
     Bitfield(isgd, 1);      /* is guard */
     Bitfield(ispriest, 1);  /* is a priest */
 
     Bitfield(iswiz, 1);  /* is the Wizard of Yendor */
     Bitfield(wormno, 5); /* at most 31 worms on any level */
 /* 2 free bits */
 
 #define MAX_NUM_WORMS 32 /* should be 2^(wormno bitfield size) */
 
     unsigned long mstrategy; /* for monsters with mflag3: current strategy */
 #ifdef NHSTDC
 #define STRAT_APPEARMSG 0x80000000UL
 #else
 #define STRAT_APPEARMSG 0x80000000L
 #endif
 #define STRAT_ARRIVE 0x40000000L /* just arrived on current level */
 #define STRAT_WAITFORU 0x20000000L
 #define STRAT_CLOSE 0x10000000L
 #define STRAT_WAITMASK (STRAT_CLOSE | STRAT_WAITFORU)
 #define STRAT_HEAL 0x08000000L
 #define STRAT_GROUND 0x04000000L
 #define STRAT_MONSTR 0x02000000L
 #define STRAT_PLAYER 0x01000000L
 #define STRAT_NONE 0x00000000L
 #define STRAT_STRATMASK 0x0f000000L
 #define STRAT_XMASK 0x00ff0000L
 #define STRAT_YMASK 0x0000ff00L
 #define STRAT_GOAL 0x000000ffL
 #define STRAT_GOALX(s) ((xchar)((s & STRAT_XMASK) >> 16))
 #define STRAT_GOALY(s) ((xchar)((s & STRAT_YMASK) >> 8))
 
     long mtrapseen; /* bitmap of traps we've been trapped in */
     long mlstmv;    /* for catching up with lost time */
     long mspare1;
     struct obj *minvent;
 
     struct obj *mw;
     long misc_worn_check;
     xchar weapon_check;
 
     int meating;           /* monster is eating timeout */
     struct mextra *mextra; /* point to mextra struct */
 };
 
 #define newmonst() (struct monst *) alloc(sizeof(struct monst))
 
 /* these are in mspeed */
 #define MSLOW 1 /* slow monster */
 #define MFAST 2 /* speeded monster */
 
 #define MON_WEP(mon) ((mon)->mw)
 #define MON_NOWEP(mon) ((mon)->mw = (struct obj *) 0)
 
 #define DEADMONSTER(mon) ((mon)->mhp < 1)
 #define is_starting_pet(mon) ((mon)->m_id == context.startingpet_mid)
 #define is_vampshifter(mon)                                      \
     ((mon)->cham == PM_VAMPIRE || (mon)->cham == PM_VAMPIRE_LORD \
      || (mon)->cham == PM_VLAD_THE_IMPALER)
 #define is_door_mappear(mon) ((mon)->m_ap_type == M_AP_FURNITURE \
      && ((mon)->mappearance == S_hcdoor || (mon)->mappearance == S_vcdoor))
 #define is_obj_mappear(mon,otyp) ((mon)->m_ap_type == M_AP_OBJECT \
      && (mon)->mappearance == (otyp))
 #endif /* MONST_H */