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potion.c

/*    SCCS Id: @(#)potion.c   3.3   2000/06/02  */
/* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
/* NetHack may be freely redistributed.  See license for details. */

#include "hack.h"

#ifdef OVLB
boolean notonhead = FALSE;

static NEARDATA int nothing, unkn;
static NEARDATA const char beverages[] = { POTION_CLASS, 0 };

STATIC_DCL long FDECL(itimeout, (long));
STATIC_DCL long FDECL(itimeout_incr, (long,int));
STATIC_DCL void NDECL(ghost_from_bottle);
STATIC_DCL short FDECL(mixtype, (struct obj *,struct obj *));

/* force `val' to be within valid range for intrinsic timeout value */
STATIC_OVL long
itimeout(val)
long val;
{
    if (val >= TIMEOUT) val = TIMEOUT;
    else if (val < 1) val = 0;

    return val;
}

/* increment `old' by `incr' and force result to be valid intrinsic timeout */
STATIC_OVL long
itimeout_incr(old, incr)
long old;
int incr;
{
    return itimeout((old & TIMEOUT) + (long)incr);
}

/* set the timeout field of intrinsic `which' */
void
set_itimeout(which, val)
long *which, val;
{
    *which &= ~TIMEOUT;
    *which |= itimeout(val);
}

/* increment the timeout field of intrinsic `which' */
void
incr_itimeout(which, incr)
long *which;
int incr;
{
    set_itimeout(which, itimeout_incr(*which, incr));
}

void
make_confused(xtime,talk)
long xtime;
boolean talk;
{
      long old = HConfusion;

      if (!xtime && old) {
            if (talk)
                You_feel("less %s now.",
                  Hallucination ? "trippy" : "confused");
      }
      if ((xtime && !old) || (!xtime && old)) flags.botl = TRUE;

      set_itimeout(&HConfusion, xtime);
}

void
make_stunned(xtime,talk)
long xtime;
boolean talk;
{
      long old = HStun;

      if (!xtime && old) {
            if (talk)
                You_feel("%s now.",
                  Hallucination ? "less wobbly" : "a bit steadier");
      }
      if (xtime && !old) {
            if (talk) You("stagger...");
      }
      if ((!xtime && old) || (xtime && !old)) flags.botl = TRUE;

      set_itimeout(&HStun, xtime);
}

void
make_sick(xtime, cause, talk, type)
long xtime;
const char *cause;      /* sickness cause */
boolean talk;
int type;
{
      long old = Sick;

      if (xtime > 0L) {
          if (Sick_resistance) return;
          if (!old) {
            /* newly sick */
            You_feel("deathly sick.");
          } else {
            /* already sick */
            if (talk) You_feel("%s worse.",
                        xtime <= Sick/2L ? "much" : "even");
          }
          set_itimeout(&Sick, xtime);
          u.usick_type |= type;
          flags.botl = TRUE;
      } else if (old && (type & u.usick_type)) {
          /* was sick, now not */
          u.usick_type &= ~type;
          if (u.usick_type) { /* only partly cured */
            if (talk) You_feel("somewhat better.");
            set_itimeout(&Sick, Sick * 2); /* approximation */
          } else {
            if (talk) pline("What a relief!");
            Sick = 0L;        /* set_itimeout(&Sick, 0L) */
          }
          flags.botl = TRUE;
      }

      if (Sick) {
          exercise(A_CON, FALSE);
          if (cause) {
            (void) strncpy(u.usick_cause, cause, sizeof(u.usick_cause));
            u.usick_cause[sizeof(u.usick_cause)-1] = 0;
            }
          else
            u.usick_cause[0] = 0;
      } else
          u.usick_cause[0] = 0;
}

void
make_vomiting(xtime, talk)
long xtime;
boolean talk;
{
      long old = Vomiting;

      if(!xtime && old)
          if(talk) You_feel("much less nauseous now.");

      set_itimeout(&Vomiting, xtime);
}


void
make_blinded(xtime, talk)
long xtime;
boolean talk;
{
      long old = Blinded;
      boolean changed = FALSE;

      if (u.usleep) talk = FALSE;

      if (!xtime && old && !Blindfolded && haseyes(youmonst.data)) {
          if (talk) {
            if (Hallucination)
                pline("Far out!  Everything is all cosmic again!");
            else           You("can see again.");
          }
          changed = TRUE;
      }
      if (xtime && !old && !Blindfolded && haseyes(youmonst.data)) {
          if (talk) {
            if (Hallucination)
                  pline("Oh, bummer!  Everything is dark!  Help!");
            else
                  pline("A cloud of darkness falls upon you.");
          }
          changed = TRUE;

          /* Before the hero goes blind, set the ball&chain variables. */
          if (Punished) set_bc(0);
      }
      set_itimeout(&Blinded, xtime);
      if (changed) {
          flags.botl = 1;
          vision_full_recalc = 1;
          if (Blind_telepat || Infravision) see_monsters();
      }
}

void
make_hallucinated(xtime, talk, mask)
long xtime; /* nonzero if this is an attempt to turn on hallucination */
boolean talk;
long mask;  /* nonzero if resistance status should change by mask */
{
      boolean changed = 0;
#ifdef LINT
      const char *message = 0;
#else
      const char *message;
#endif

      if (!xtime)
          message = "Everything looks SO boring now.";
      else
          message = "Oh wow!  Everything seems so cosmic!";

      if (mask) {
          if (HHallucination) changed = TRUE;

          if (!xtime) EHalluc_resistance |= mask;
          else EHalluc_resistance &= ~mask;
      } else {
          if (!EHalluc_resistance && (!!HHallucination != !!xtime))
            changed = TRUE;
          set_itimeout(&HHallucination, xtime);
      }

      if (changed) {
          if (u.uswallow) {
            swallowed(0);     /* redraw swallow display */
          } else {
            /* The see_* routines should be called *before* the pline. */
            see_monsters();
            see_objects();
            see_traps();
          }
          flags.botl = 1;
          if (!Blind && talk) pline(message);
      }
}

STATIC_OVL void
ghost_from_bottle()
{
      struct monst *mtmp = makemon(&mons[PM_GHOST], u.ux, u.uy, NO_MM_FLAGS);

      if (!mtmp) {
            pline("This bottle turns out to be empty.");
            return;
      }
      if (Blind) {
            pline("As you open the bottle, %s emerges.", something);
            return;
      }
      pline("As you open the bottle, an enormous %s emerges!",
            Hallucination ? rndmonnam() : (const char *)"ghost");
      if(flags.verbose)
          You("are frightened to death, and unable to move.");
      nomul(-3);
      nomovemsg = "You regain your composure.";
}

int
dodrink() {
      register struct obj *otmp;
      const char *potion_descr;

      if (Strangled) {
            pline("If you can't breathe air, how can you drink liquid?");
            return 0;
      }
      /* Is there a fountain to drink from here? */
      if (IS_FOUNTAIN(levl[u.ux][u.uy].typ) && !Levitation) {
            if(yn("Drink from the fountain?") == 'y') {
                  drinkfountain();
                  return 1;
            }
      }
#ifdef SINKS
      /* Or a kitchen sink? */
      if (IS_SINK(levl[u.ux][u.uy].typ)) {
            if (yn("Drink from the sink?") == 'y') {
                  drinksink();
                  return 1;
            }
      }
#endif

      /* Or are you surrounded by water? */
      if (Underwater) {
            if (yn("Drink the water around you?") == 'y') {
                pline("Do you know what lives in this water!");
                  return 1;
            }
      }

      otmp = getobj(beverages, "drink");
      if(!otmp) return(0);
      otmp->in_use = TRUE;          /* you've opened the stopper */

#define POTION_OCCUPANT_CHANCE(n) (13 + 2*(n))  /* also in muse.c */

      potion_descr = OBJ_DESCR(objects[otmp->otyp]);
      if (potion_descr) {
          if (!strcmp(potion_descr, "milky") &&
                flags.ghost_count < MAXMONNO &&
                !rn2(POTION_OCCUPANT_CHANCE(flags.ghost_count))) {
            ghost_from_bottle();
            useup(otmp);
            return(1);
          } else if (!strcmp(potion_descr, "smoky") &&
                flags.djinni_count < MAXMONNO &&
                !rn2(POTION_OCCUPANT_CHANCE(flags.djinni_count))) {
            djinni_from_bottle(otmp);
            useup(otmp);
            return(1);
          }
      }
      return dopotion(otmp);
}

int
dopotion(otmp)
register struct obj *otmp;
{
      int retval;

      nothing = unkn = 0;
      if((retval = peffects(otmp)) >= 0) return(retval);

      if(nothing) {
          unkn++;
          You("have a %s feeling for a moment, then it passes.",
              Hallucination ? "normal" : "peculiar");
      }
      if(otmp->dknown && !objects[otmp->otyp].oc_name_known) {
            if(!unkn) {
                  makeknown(otmp->otyp);
                  more_experienced(0,10);
            } else if(!objects[otmp->otyp].oc_uname)
                  docall(otmp);
      }
      useup(otmp);
      return(1);
}

int
peffects(otmp)
      register struct obj     *otmp;
{
      register int i, ii, lim;

      switch(otmp->otyp){
      case POT_RESTORE_ABILITY:
      case SPE_RESTORE_ABILITY:
            unkn++;
            if(otmp->cursed) {
                pline("Ulch!  This makes you feel mediocre!");
                break;
            } else {
                pline("Wow!  This makes you feel %s!",
                    (otmp->blessed) ? "great" : "good");
                i = rn2(A_MAX);           /* start at a random point */
                for (ii = 0; ii < A_MAX; ii++) {
                  lim = AMAX(i);
                  if (i == A_STR && u.uhs >= 3) --lim;      /* WEAK */
                  if (ABASE(i) < lim) {
                      ABASE(i) = lim;
                      flags.botl = 1;
                      /* only first found if not blessed */
                      if (!otmp->blessed) break;
                  }
                  if(++i >= A_MAX) i = 0;
                }
            }
            break;
      case POT_HALLUCINATION:
            if (Hallucination || Halluc_resistance) nothing++;
            make_hallucinated(itimeout_incr(HHallucination,
                                 rn1(200, 600 - 300 * bcsign(otmp))),
                          TRUE, 0L);
            break;
      case POT_WATER:
            if(!otmp->blessed && !otmp->cursed) {
                pline("This tastes like water.");
                u.uhunger += rnd(10);
                newuhs(FALSE);
                break;
            }
            unkn++;
            if(is_undead(youmonst.data) || is_demon(youmonst.data) ||
                        u.ualign.type == A_CHAOTIC) {
                if(otmp->blessed) {
                  pline("This burns like acid!");
                  exercise(A_CON, FALSE);
                  if (u.ulycn >= LOW_PM) {
                      Your("affinity to %s disappears!",
                         makeplural(mons[u.ulycn].mname));
                      if (youmonst.data == &mons[u.ulycn])
                        you_unwere(FALSE);
                      u.ulycn = NON_PM;   /* cure lycanthropy */
                  }
                  losehp(d(2,6), "potion of holy water", KILLED_BY_AN);
                } else if(otmp->cursed) {
                  You_feel("quite proud of yourself.");
                  healup(d(2,6),0,0,0);
                  if (u.ulycn >= LOW_PM && !Upolyd) you_were();
                  exercise(A_CON, TRUE);
                }
            } else {
                if(otmp->blessed) {
                  You_feel("full of awe.");
                  make_sick(0L, (char *) 0, TRUE, SICK_ALL);
                  exercise(A_WIS, TRUE);
                  exercise(A_CON, TRUE);
                  if (u.ulycn >= LOW_PM)
                      you_unwere(TRUE);   /* "Purified" */
                  /* make_confused(0L,TRUE); */
                } else {
                  if(u.ualign.type == A_LAWFUL) {
                      pline("This burns like acid!");
                      losehp(d(2,6), "potion of unholy water",
                        KILLED_BY_AN);
                  } else
                      You_feel("full of dread.");
                  if (u.ulycn >= LOW_PM && !Upolyd) you_were();
                  exercise(A_CON, FALSE);
                }
            }
            break;
      case POT_BOOZE:
            unkn++;
            pline("Ooph!  This tastes like %s%s!",
                  otmp->odiluted ? "watered down " : "",
                  Hallucination ? "dandelion wine" : "liquid fire");
            if (!otmp->blessed)
                make_confused(itimeout_incr(HConfusion, d(3,8)), FALSE);
            /* the whiskey makes us feel better */
            if (!otmp->odiluted) healup(1, 0, FALSE, FALSE);
            u.uhunger += 10 * (2 + bcsign(otmp));
            newuhs(FALSE);
            exercise(A_WIS, FALSE);
            if(otmp->cursed) {
                  You("pass out.");
                  multi = -rnd(15);
                  nomovemsg = "You awake with a headache.";
            }
            break;
      case POT_ENLIGHTENMENT:
            if(otmp->cursed) {
                  unkn++;
                  You("have an uneasy feeling...");
                  exercise(A_WIS, FALSE);
            } else {
                  if (otmp->blessed) {
                        (void) adjattrib(A_INT, 1, FALSE);
                        (void) adjattrib(A_WIS, 1, FALSE);
                  }
                  You_feel("self-knowledgeable...");
                  display_nhwindow(WIN_MESSAGE, FALSE);
                  enlightenment(0);
                  pline_The("feeling subsides.");
                  exercise(A_WIS, TRUE);
            }
            break;
      case SPE_INVISIBILITY:
            /* spell cannot penetrate mummy wrapping */
            if (BInvis && uarmc->otyp == MUMMY_WRAPPING) {
                  You_feel("rather itchy under your %s.", xname(uarmc));
                  break;
            }
            /* FALLTHRU */
      case POT_INVISIBILITY:
            if (Invis || Blind || BInvis) {
                nothing++;
            } else {
                self_invis_message();
            }
            if (otmp->blessed) HInvis |= FROMOUTSIDE;
            else incr_itimeout(&HInvis, rn1(15,31));
            newsym(u.ux,u.uy);      /* update position */
            if(otmp->cursed) {
                pline("For some reason, you feel your presence is known.");
                aggravate();
            }
            break;
      case POT_SEE_INVISIBLE:
            /* tastes like fruit juice in Rogue */
      case POT_FRUIT_JUICE:
          {
            int msg = Invisible && !Blind;

            unkn++;
            if (otmp->cursed)
                pline("Yecch!  This tastes %s.",
                    Hallucination ? "overripe" : "rotten");
            else pline(Hallucination ?
            "This tastes like 10%% real %s%s juice all-natural beverage." :
                        "This tastes like %s%s juice.",
                    otmp->odiluted ? "reconstituted " : "", pl_fruit);
            if (otmp->otyp == POT_FRUIT_JUICE) {
                u.uhunger += (otmp->odiluted ? 5 : 10) * (2 + bcsign(otmp));
                newuhs(FALSE);
                break;
            }
            if (!otmp->cursed) {
                  /* Tell them they can see again immediately, which
                   * will help them identify the potion...
                   */
                  make_blinded(0L,TRUE);
            }
            if (otmp->blessed)
                  HSee_invisible |= FROMOUTSIDE;
            else
                  incr_itimeout(&HSee_invisible, rn1(100,750));
            set_mimic_blocking(); /* do special mimic handling */
            see_monsters();   /* see invisible monsters */
            newsym(u.ux,u.uy); /* see yourself! */
            if (msg && !Blind) { /* Blind possible if polymorphed */
                You("can see through yourself, but you are visible!");
                unkn--;
            }
            break;
          }
      case POT_PARALYSIS:
            if (Free_action)
                You("stiffen momentarily.");             
            else {
                if (Levitation||Is_airlevel(&u.uz)||Is_waterlevel(&u.uz))
                  You("are motionlessly suspended.");
#ifdef STEED
                else if (u.usteed)
                  You("are frozen in place!");
#endif
                else
                  Your("%s are frozen to the %s!",
                       makeplural(body_part(FOOT)), surface(u.ux, u.uy));
                nomul(-(rn1(10, 25 - 12*bcsign(otmp))));
                nomovemsg = You_can_move_again;
                exercise(A_DEX, FALSE);
            }
            break;
      case POT_SLEEPING:        
            if(Sleep_resistance || Free_action)
                You("yawn.");
            else {
                You("suddenly fall asleep!");
                fall_asleep(-rn1(10, 25 - 12*bcsign(otmp)), TRUE);
            }
            break;
      case POT_MONSTER_DETECTION:
      case SPE_DETECT_MONSTERS:
            if (otmp->blessed) {
                int x, y;

                if (Detect_monsters) nothing++;
                unkn++;
                incr_itimeout(&HDetect_monsters, 20+rnd(40));
                for (x = 1; x < COLNO; x++) {
                  for (y = 0; y < ROWNO; y++) {
                      if (levl[x][y].glyph == GLYPH_INVISIBLE) {
                        unmap_object(x, y);
                        newsym(x,y);
                      }
                      if (MON_AT(x,y)) unkn = 0;
                  }
                }
                see_monsters();
                if (unkn) You_feel("lonely.");
                break;
            }
            if (monster_detect(otmp, 0))
                  return(1);        /* nothing detected */
            exercise(A_WIS, TRUE);
            break;
      case POT_OBJECT_DETECTION:
      case SPE_DETECT_TREASURE:
            if (object_detect(otmp, 0))
                  return(1);        /* nothing detected */
            exercise(A_WIS, TRUE);
            break;
      case POT_SICKNESS:
            pline("Yecch!  This stuff tastes like poison.");
            if (otmp->blessed) {
                pline("(But in fact it was mildly stale %s juice.)",
                    pl_fruit);
                if (!Role_if(PM_HEALER))
                  losehp(1, "mildly contaminated potion", KILLED_BY_AN);
            } else {
                if(Poison_resistance)
                  pline(
                "(But in fact it was biologically contaminated %s juice.)",
                        pl_fruit);
                if (Role_if(PM_HEALER))
                  pline("Fortunately, you have been immunized.");
                else {
                  int typ = rn2(A_MAX);

                  if (!Fixed_abil) {
                      poisontell(typ);
                      (void) adjattrib(typ,
                              Poison_resistance ? -1 : -rn1(4,3),
                              TRUE);
                  }
                  if(!Poison_resistance)
                        losehp(rnd(10)+5*!!(otmp->cursed),
                               "contaminated potion", KILLED_BY_AN);
                  exercise(A_CON, FALSE);
                }
            }
            if(Hallucination) {
                  You("are shocked back to your senses!");
                  make_hallucinated(0L,FALSE,0L);
            }
            break;
      case POT_CONFUSION:
            if(!Confusion)
                if (Hallucination) {
                  pline("What a trippy feeling!");
                  unkn++;
                } else
                  pline("Huh, What?  Where am I?");
            else  nothing++;
            make_confused(itimeout_incr(HConfusion,
                                  rn1(7, 16 - 8 * bcsign(otmp))),
                        FALSE);
            break;
      case POT_GAIN_ABILITY:
            if(otmp->cursed) {
                pline("Ulch!  That potion tasted foul!");
                unkn++;
            } else {      /* If blessed, increase all; if not, try up to */
                int itmp; /* 6 times to find one which can be increased. */
                i = -1;       /* increment to 0 */
                for (ii = A_MAX; ii > 0; ii--) {
                  i = (otmp->blessed ? i + 1 : rn2(A_MAX));
                  /* only give "your X is already as high as it can get"
                     message on last attempt (except blessed potions) */
                  itmp = (otmp->blessed || ii == 1) ? 0 : -1;
                  if (adjattrib(i, 1, itmp) && !otmp->blessed)
                      break;
                }
            }
            break;
      case POT_SPEED:
            if(Wounded_legs && !otmp->cursed) {
                  heal_legs();
                  unkn++;
                  break;
            }           /* and fall through */
      case SPE_HASTE_SELF:
            if(!Very_fast) /* wwf@doe.carleton.ca */
                  You("are suddenly moving %sfaster.",
                        Fast ? "" : "much ");
            else {
                  Your("%s get new energy.",
                        makeplural(body_part(LEG)));
                  unkn++;
            }
            exercise(A_DEX, TRUE);
            incr_itimeout(&HFast, rn1(10, 100 + 60 * bcsign(otmp)));
            break;
      case POT_BLINDNESS:
            if(Blind) nothing++;
            make_blinded(itimeout_incr(Blinded,
                                 rn1(200, 250 - 125 * bcsign(otmp))),
                       TRUE);
            break;
      case POT_GAIN_LEVEL:
            if (otmp->cursed) {
                  unkn++;
                  /* they went up a level */
                  if((ledger_no(&u.uz) == 1 && u.uhave.amulet) ||
                        Can_rise_up(u.ux, u.uy, &u.uz)) {
                      const char *riseup ="rise up, through the %s!";
                      if(ledger_no(&u.uz) == 1) {
                          You(riseup, ceiling(u.ux,u.uy));
                        goto_level(&earth_level, FALSE, FALSE, FALSE);
                      } else {
                          register int newlev = depth(&u.uz)-1;
                        d_level newlevel;

                        get_level(&newlevel, newlev);
                        if(on_level(&newlevel, &u.uz)) {
                            pline("It tasted bad.");
                            break;
                        } else You(riseup, ceiling(u.ux,u.uy));
                        goto_level(&newlevel, FALSE, FALSE, FALSE);
                      }
                  }
                  else You("have an uneasy feeling.");
                  break;
            }
            pluslvl(FALSE);
            if (otmp->blessed)
                  /* blessed potions place you at a random spot in the
                   * middle of the new level instead of the low point
                   */
                  u.uexp = rndexp();
            break;
      case POT_HEALING:
            You_feel("better.");
            healup(d(6 + 2 * bcsign(otmp), 4),
                   !otmp->cursed ? 1 : 0, !!otmp->blessed, !otmp->cursed);
            exercise(A_CON, TRUE);
            break;
      case POT_EXTRA_HEALING:
            You_feel("much better.");
            healup(d(6 + 2 * bcsign(otmp), 8),
                   otmp->blessed ? 5 : !otmp->cursed ? 2 : 0,
                   !otmp->cursed, TRUE);
            make_hallucinated(0L,TRUE,0L);
            exercise(A_CON, TRUE);
            exercise(A_STR, TRUE);
            break;
      case POT_FULL_HEALING:        
            You_feel("completely healed.");
            healup(400, 4+4*bcsign(otmp), !otmp->cursed, TRUE);
            /* Restore one lost level if blessed */
            if (otmp->blessed && (u.ulevel < u.ulevelmax))
                  pluslvl(FALSE);
            make_hallucinated(0L,TRUE,0L);
            exercise(A_STR, TRUE);
            exercise(A_CON, TRUE);
            break;
      case POT_LEVITATION:
      case SPE_LEVITATION:
            if (otmp->cursed) HLevitation &= ~I_SPECIAL;
            if(!Levitation) {
                  /* kludge to ensure proper operation of float_up() */
                  HLevitation = 1;
                  float_up();
                  /* reverse kludge */
                  HLevitation = 0;
                  if (otmp->cursed && !Is_waterlevel(&u.uz)) {
      if((u.ux != xupstair || u.uy != yupstair)
         && (u.ux != sstairs.sx || u.uy != sstairs.sy || !sstairs.up)
         && (!xupladder || u.ux != xupladder || u.uy != yupladder)
      ) {
                              You("hit your %s on the %s.",
                                    body_part(HEAD),
                                    ceiling(u.ux,u.uy));
                              losehp(uarmh ? 1 : rnd(10),
                                    "colliding with the ceiling",
                                    KILLED_BY);
                        } else (void) doup();
                  }
            } else
                  nothing++;
            if (otmp->blessed) {
                incr_itimeout(&HLevitation, rn1(50,250));
                HLevitation |= I_SPECIAL;
            } else incr_itimeout(&HLevitation, rn1(140,10));
            break;
      case POT_GAIN_ENERGY:               /* M. Stephenson */
            {     register int num;
                  if(otmp->cursed)
                      You_feel("lackluster.");
                  else
                      pline("Magical energies course through your body.");
                  num = rnd(5) + 5 * otmp->blessed + 1;
                  u.uenmax += (otmp->cursed) ? -num : num;
                  u.uen += (otmp->cursed) ? -num : num;
                  if(u.uenmax <= 0) u.uenmax = 0;
                  if(u.uen <= 0) u.uen = 0;
                  flags.botl = 1;
                  exercise(A_WIS, TRUE);
            }
            break;
      case POT_OIL:                       /* P. Winner */
            {
                  boolean good_for_you = FALSE;

                  if (otmp->lamplit) {
                      if (likes_fire(youmonst.data)) {
                        pline("Ahh, a refreshing drink.");
                        good_for_you = TRUE;
                      } else {
                        You("burn your %s.", body_part(FACE));
                        losehp(d(Fire_resistance ? 1 : 3, 4),
                               "burning potion of oil", KILLED_BY_AN);
                      }
                  } else if(otmp->cursed)
                      pline("This tastes like castor oil.");
                  else
                      pline("That was smooth!");
                  exercise(A_WIS, good_for_you);
            }
            break;
      case POT_ACID:
            if (Acid_resistance)
                  /* Not necessarily a creature who _likes_ acid */
                  pline("This tastes %s.", Hallucination ? "tangy" : "sour");
            else {
                  pline("This burns%s!", otmp->blessed ? " a little" :
                              otmp->cursed ? " a lot" : "");
                  losehp(d(otmp->cursed ? 2 : 1, otmp->blessed ? 4 : 8),
                              "potion of acid", KILLED_BY_AN);
                  exercise(A_CON, FALSE);
            }
            if (Stoned) fix_petrification();
            break;
      case POT_POLYMORPH:
            You_feel("a little %s.", Hallucination ? "normal" : "strange");
            if (!Unchanging) polyself();
            break;
      default:
            impossible("What a funny potion! (%u)", otmp->otyp);
            return(0);
      }
      return(-1);
}

void
healup(nhp, nxtra, curesick, cureblind)
      int nhp, nxtra;
      register boolean curesick, cureblind;
{
      if (nhp) {
            if (Upolyd) {
                  u.mh += nhp;
                  if (u.mh > u.mhmax) u.mh = (u.mhmax += nxtra);
            } else {
                  u.uhp += nhp;
                  if(u.uhp > u.uhpmax) u.uhp = (u.uhpmax += nxtra);
            }
      }
      if(cureblind)     make_blinded(0L,TRUE);
      if(curesick)      make_sick(0L, (char *) 0, TRUE, SICK_ALL);
      flags.botl = 1;
      return;
}

void
strange_feeling(obj,txt)
register struct obj *obj;
register const char *txt;
{
      if(flags.beginner)
            You("have a %s feeling for a moment, then it passes.",
            Hallucination ? "normal" : "strange");
      else
            pline(txt);

      if(!obj)    /* e.g., crystal ball finds no traps */
            return;

      if(obj->dknown && !objects[obj->otyp].oc_name_known &&
                                    !objects[obj->otyp].oc_uname)
            docall(obj);
      useup(obj);
}

const char *bottlenames[] = {
      "bottle", "phial", "flagon", "carafe", "flask", "jar", "vial"
};

void
potionhit(mon, obj, your_fault)
register struct monst *mon;
register struct obj *obj;
boolean your_fault;
{
      register const char *botlnam = bottlenames[rn2(SIZE(bottlenames))];
      boolean isyou = (mon == &youmonst);
      int distance;

      if(isyou) {
            distance = 0;
            pline_The("%s crashes on your %s and breaks into shards.",
                  botlnam, body_part(HEAD));
            losehp(rnd(2), "thrown potion", KILLED_BY_AN);
      } else {
            distance = distu(mon->mx,mon->my);
            if (!cansee(mon->mx,mon->my)) pline("Crash!");
            else {
                char *mnam = mon_nam(mon);
                char buf[BUFSZ];

                if(has_head(mon->data)) {
                  Sprintf(buf, "%s %s",
                        s_suffix(mnam),
                        (notonhead ? "body" : "head"));
                } else {
                  Strcpy(buf, mnam);
                }
                pline_The("%s crashes on %s and breaks into shards.",
                     botlnam, buf);
            }
            if(rn2(5) && mon->mhp > 1)
                  mon->mhp--;
      }

      /* oil doesn't instantly evaporate */
      if (obj->otyp != POT_OIL && cansee(mon->mx,mon->my))
            pline("%s evaporates.", The(xname(obj)));

    if (isyou) {
      switch (obj->otyp) {
      case POT_OIL:
            if (obj->lamplit)
                splatter_burning_oil(u.ux, u.uy);
            break;
      case POT_POLYMORPH:
            You_feel("a little %s.", Hallucination ? "normal" : "strange");
            if (!Unchanging && !Antimagic) polyself();
            break;
      case POT_ACID:
            if (!Acid_resistance) {
                pline("This burns%s!", obj->blessed ? " a little" :
                            obj->cursed ? " a lot" : "");
                losehp(d(obj->cursed ? 2 : 1, obj->blessed ? 4 : 8),
                            "potion of acid", KILLED_BY_AN);
            }
            break;
      }
    } else {
      boolean angermon = TRUE;

      if (!your_fault) angermon = FALSE;
      switch (obj->otyp) {
      case POT_HEALING:
      case POT_EXTRA_HEALING:
      case POT_FULL_HEALING:
            if (mon->data == &mons[PM_PESTILENCE]) goto do_illness;
            /*FALLTHRU*/
      case POT_RESTORE_ABILITY:
      case POT_GAIN_ABILITY:
 do_healing:
            angermon = FALSE;
            if(mon->mhp < mon->mhpmax) {
                mon->mhp = mon->mhpmax;
                if (canseemon(mon))
                  pline("%s looks sound and hale again.", Monnam(mon));
            }
            break;
      case POT_SICKNESS:
            if (mon->data == &mons[PM_PESTILENCE]) goto do_healing;
            if (dmgtype(mon->data, AD_DISE) ||
                     dmgtype(mon->data, AD_PEST) ||
                     resists_poison(mon)) {
                if (canseemon(mon))
                  pline("%s looks unharmed.", Monnam(mon));
                break;
            }
 do_illness:
            if((mon->mhpmax > 3) && !resist(mon, POTION_CLASS, 0, NOTELL))
                  mon->mhpmax /= 2;
            if((mon->mhp > 2) && !resist(mon, POTION_CLASS, 0, NOTELL))
                  mon->mhp /= 2;
            if (mon->mhp > mon->mhpmax) mon->mhp = mon->mhpmax;
            if (canseemon(mon))
                pline("%s looks rather ill.", Monnam(mon));
            break;
      case POT_CONFUSION:
      case POT_BOOZE:
            if(!resist(mon, POTION_CLASS, 0, NOTELL))  mon->mconf = TRUE;
            break;
      case POT_INVISIBILITY:
            angermon = FALSE;
            mon_set_minvis(mon);
            break;
      case POT_SLEEPING:
            /* wakeup() doesn't rouse victims of temporary sleep */
            if (sleep_monst(mon, rnd(12), POTION_CLASS)) {
                pline("%s falls asleep.", Monnam(mon));
                slept_monst(mon);
            }
            break;
      case POT_PARALYSIS:
            if (mon->mcanmove) {
                  mon->mcanmove = 0;
                  /* really should be rnd(5) for consistency with players
                   * breathing potions, but...
                   */
                  mon->mfrozen = rnd(25);
            }
            break;
      case POT_SPEED:
            angermon = FALSE;
            mon_adjust_speed(mon, 1);
            break;
      case POT_BLINDNESS:
            if(haseyes(mon->data)) {
                register int btmp = 64 + rn2(32) +
                  rn2(32) * !resist(mon, POTION_CLASS, 0, NOTELL);
                btmp += mon->mblinded;
                mon->mblinded = min(btmp,127);
                mon->mcansee = 0;
            }
            break;
      case POT_WATER:
            if (is_undead(mon->data) || is_demon(mon->data) ||
                  is_were(mon->data)) {
                if (obj->blessed) {
                  pline("%s shrieks in pain!", Monnam(mon));
                  mon->mhp -= d(2,6);
                  /* should only be by you */
                  if (mon->mhp < 1) killed(mon);
                  else if (is_were(mon->data) && !is_human(mon->data))
                      new_were(mon);      /* revert to human */
                } else if (obj->cursed) {
                  angermon = FALSE;
                  if (canseemon(mon))
                      pline("%s looks healthier.", Monnam(mon));
                  mon->mhp += d(2,6);
                  if (mon->mhp > mon->mhpmax) mon->mhp = mon->mhpmax;
                  if (is_were(mon->data) && is_human(mon->data) &&
                        !Protection_from_shape_changers)
                      new_were(mon);      /* transform into beast */
                }
            } else if(mon->data == &mons[PM_GREMLIN]) {
                angermon = FALSE;
                (void)split_mon(mon, (struct monst *)0);
            } else if(mon->data == &mons[PM_IRON_GOLEM]) {
                if (canseemon(mon))
                  pline("%s rusts.", Monnam(mon));
                mon->mhp -= d(1,6);
                /* should only be by you */
                if (mon->mhp < 1) killed(mon);
            }
            break;
      case POT_OIL:
            if (obj->lamplit)
                  splatter_burning_oil(mon->mx, mon->my);
            break;
      case POT_ACID:
            if (!resists_acid(mon) && !resist(mon, POTION_CLASS, 0, NOTELL)) {
                pline("%s shrieks in pain!", Monnam(mon));
                mon->mhp -= d(obj->cursed ? 2 : 1, obj->blessed ? 4 : 8);
                if (mon->mhp < 1) {
                  if (your_fault)
                      killed(mon);
                  else
                      monkilled(mon, "", AD_ACID);
                }
            }
            break;
      case POT_POLYMORPH:
            (void) bhitm(mon, obj);
            break;
/*
      case POT_GAIN_LEVEL:
      case POT_LEVITATION:
      case POT_FRUIT_JUICE:
      case POT_MONSTER_DETECTION:
      case POT_OBJECT_DETECTION:
            break;
*/
      }
      if (angermon)
          wakeup(mon);
      else
          mon->msleeping = 0;
    }

      /* Note: potionbreathe() does its own docall() */
      if (distance==0 || ((distance < 3) && rn2(5)))
            potionbreathe(obj);
      else if (obj->dknown && !objects[obj->otyp].oc_name_known &&
               !objects[obj->otyp].oc_uname && cansee(mon->mx,mon->my))
            docall(obj);
      if(*u.ushops && obj->unpaid) {
              register struct monst *shkp =
                  shop_keeper(*in_rooms(u.ux, u.uy, SHOPBASE));

            if(!shkp)
                obj->unpaid = 0;
            else {
                (void)stolen_value(obj, u.ux, u.uy,
                         (boolean)shkp->mpeaceful, FALSE);
                subfrombill(obj, shkp);
            }
      }
      obfree(obj, (struct obj *)0);
}

void
potionbreathe(obj)
register struct obj *obj;
{
      register int i, ii, isdone, kn = 0;

      switch(obj->otyp) {
      case POT_RESTORE_ABILITY:
      case POT_GAIN_ABILITY:
            if(obj->cursed) {
                pline("Ulch!  That potion smells terrible!");
                break;
            } else {
                i = rn2(A_MAX);           /* start at a random point */
                for(isdone = ii = 0; !isdone && ii < A_MAX; ii++) {
                  if(ABASE(i) < AMAX(i)) {
                      ABASE(i)++;
                      /* only first found if not blessed */
                      isdone = !(obj->blessed);
                      flags.botl = 1;
                  }
                  if(++i >= A_MAX) i = 0;
                }
            }
            break;
      case POT_FULL_HEALING:
            if (Upolyd && u.mh < u.mhmax) u.mh++, flags.botl = 1;
            if (u.uhp < u.uhpmax) u.uhp++, flags.botl = 1;
            /*FALL THROUGH*/
      case POT_EXTRA_HEALING:
            if (Upolyd && u.mh < u.mhmax) u.mh++, flags.botl = 1;
            if (u.uhp < u.uhpmax) u.uhp++, flags.botl = 1;
            /*FALL THROUGH*/
      case POT_HEALING:
            if (Upolyd && u.mh < u.mhmax) u.mh++, flags.botl = 1;
            if (u.uhp < u.uhpmax) u.uhp++, flags.botl = 1;
            exercise(A_CON, TRUE);
            break;
      case POT_SICKNESS:
            if (!Role_if(PM_HEALER)) {
                  if (Upolyd) {
                      if (u.mh <= 5) u.mh = 1; else u.mh -= 5;
                  } else {
                      if (u.uhp <= 5) u.uhp = 1; else u.uhp -= 5;
                  }
                  flags.botl = 1;
                  exercise(A_CON, FALSE);
            }
            break;
      case POT_HALLUCINATION:
            You("have a momentary vision.");
            break;
      case POT_CONFUSION:
      case POT_BOOZE:
            if(!Confusion)
                  You_feel("somewhat dizzy.");
            make_confused(itimeout_incr(HConfusion, rnd(5)), FALSE);
            break;
      case POT_INVISIBILITY:
            if (!Blind && !Invis) {
                kn++;
                pline("For an instant you %s!",
                  See_invisible ? "could see right through yourself"
                  : "couldn't see yourself");
            }
            break;
      case POT_PARALYSIS:
            kn++;
            if (!Free_action) {                
                pline("%s seems to be holding you.", Something);
                nomul(-rnd(5));
                nomovemsg = You_can_move_again;
                exercise(A_DEX, FALSE);
            } else You("stiffen momentarily.");                
            break;
      case POT_SLEEPING:
            kn++;
            if (!Free_action && !Sleep_resistance) {                
                You_feel("rather tired.");
                nomul(-rnd(5));
                nomovemsg = You_can_move_again;
                exercise(A_DEX, FALSE);
            } else You("yawn.");
            break;
      case POT_SPEED:
            if (!Fast) Your("knees seem more flexible now.");
            incr_itimeout(&HFast, rnd(5));
            exercise(A_DEX, TRUE);
            break;
      case POT_BLINDNESS:
            if (!Blind && !u.usleep) {
                kn++;
                pline("It suddenly gets dark.");
            }
            make_blinded(itimeout_incr(Blinded, rnd(5)), FALSE);
            break;
      case POT_WATER:
            if(u.umonnum == PM_GREMLIN) {
                (void)split_mon(&youmonst, (struct monst *)0);
            } else if (u.ulycn >= LOW_PM) {
                /* vapor from [un]holy water will trigger
                   transformation but won't cure lycanthropy */
                if (obj->blessed && youmonst.data == &mons[u.ulycn])
                  you_unwere(FALSE);
                else if (obj->cursed && !Upolyd)
                  you_were();
            }
      case POT_ACID:
      case POT_POLYMORPH:
            exercise(A_CON, FALSE);
            break;
/*
      case POT_GAIN_LEVEL:
      case POT_LEVITATION:
      case POT_FRUIT_JUICE:
      case POT_MONSTER_DETECTION:
      case POT_OBJECT_DETECTION:
      case POT_OIL:
            break;
*/
      }
      /* note: no obfree() */
      if (obj->dknown) {
          if (kn)
            makeknown(obj->otyp);
          else if (!objects[obj->otyp].oc_name_known &&
                                    !objects[obj->otyp].oc_uname)
            docall(obj);
      }
}

STATIC_OVL short
mixtype(o1, o2)
register struct obj *o1, *o2;
/* returns the potion type when o1 is dipped in o2 */
{
      /* cut down on the number of cases below */
      if (o1->oclass == POTION_CLASS &&
          (o2->otyp == POT_GAIN_LEVEL ||
           o2->otyp == POT_GAIN_ENERGY ||
           o2->otyp == POT_HEALING ||
           o2->otyp == POT_EXTRA_HEALING ||
           o2->otyp == POT_FULL_HEALING ||
           o2->otyp == POT_ENLIGHTENMENT ||
           o2->otyp == POT_FRUIT_JUICE)) {
            struct obj *swp;

            swp = o1; o1 = o2; o2 = swp;
      }

      switch (o1->otyp) {
            case POT_HEALING:
                  switch (o2->otyp) {
                      case POT_SPEED:
                      case POT_GAIN_LEVEL:
                      case POT_GAIN_ENERGY:
                        return POT_EXTRA_HEALING;
                  }
            case POT_EXTRA_HEALING:
                  switch (o2->otyp) {
                      case POT_GAIN_LEVEL:
                      case POT_GAIN_ENERGY:
                        return POT_FULL_HEALING;
                  }
            case POT_FULL_HEALING:                
                  switch (o2->otyp) {
                      case POT_GAIN_LEVEL:
                      case POT_GAIN_ENERGY:
                        return POT_GAIN_ABILITY;
                  }
            case UNICORN_HORN:
                  switch (o2->otyp) {
                      case POT_SICKNESS:
                        return POT_FRUIT_JUICE;
                      case POT_HALLUCINATION:
                      case POT_BLINDNESS:
                      case POT_CONFUSION:
                        return POT_WATER;
                  }
                  break;
            case AMETHYST:          /* "a-methyst" == "not intoxicated" */
                  if (o2->otyp == POT_BOOZE)
                      return POT_FRUIT_JUICE;
                  break;
            case POT_GAIN_LEVEL:
            case POT_GAIN_ENERGY:
                  switch (o2->otyp) {
                      case POT_CONFUSION:
                        return (rn2(3) ? POT_BOOZE : POT_ENLIGHTENMENT);
                      case POT_HEALING:
                        return POT_EXTRA_HEALING;
                      case POT_EXTRA_HEALING:
                        return POT_FULL_HEALING;
                      case POT_FULL_HEALING:
                        return POT_GAIN_ABILITY;
                      case POT_FRUIT_JUICE:
                        return POT_SEE_INVISIBLE;
                      case POT_BOOZE:
                        return POT_HALLUCINATION;
                  }
                  break;
            case POT_FRUIT_JUICE:
                  switch (o2->otyp) {
                      case POT_SICKNESS:
                        return POT_SICKNESS;
                      case POT_SPEED:
                        return POT_BOOZE;
                      case POT_GAIN_LEVEL:
                      case POT_GAIN_ENERGY:
                        return POT_SEE_INVISIBLE;
                  }
                  break;
            case POT_ENLIGHTENMENT:
                  switch (o2->otyp) {
                      case POT_LEVITATION:
                        if (rn2(3)) return POT_GAIN_LEVEL;
                        break;
                      case POT_FRUIT_JUICE:
                        return POT_BOOZE;
                      case POT_BOOZE:
                        return POT_CONFUSION;
                  }
                  break;
      }

      return 0;
}


boolean
get_wet(obj)
register struct obj *obj;
/* returns TRUE if something happened (potion should be used up) */
{
      char Your_buf[BUFSZ];

      if (snuff_lit(obj)) return(TRUE);

      if (obj->greased) {
            grease_protect(obj,(char *)0,FALSE,&youmonst);
            return(FALSE);
      }
      (void) Shk_Your(Your_buf, obj);
      /* (Rusting shop goods ought to be charged for.) */
      switch (obj->oclass) {
          case WEAPON_CLASS:
            if (!obj->oerodeproof && is_rustprone(obj) &&
                (obj->oeroded < MAX_ERODE) && !rn2(2)) {
                  pline("%s %s some%s.",
                        Your_buf, aobjnam(obj, "rust"),
                        obj->oeroded ? " more" : "what");
                  obj->oeroded++;
                  update_inventory();
                  return TRUE;
            } else break;
          case POTION_CLASS:
            if (obj->otyp == POT_WATER) return FALSE;
            /* KMH -- Water into acid causes an explosion */
            if (obj->otyp == POT_ACID) {
                  pline("It boils vigorously!");
                  losehp(rnd(10), "elementary chemistry", KILLED_BY);
                  makeknown(obj->otyp);
                  update_inventory();
                  return (TRUE);
            }
            pline("%s %s%s.", Your_buf, aobjnam(obj,"dilute"),
                  obj->odiluted ? " further" : "");
            if(obj->unpaid && costly_spot(u.ux, u.uy)) {
                You("dilute it, you pay for it.");
                bill_dummy_object(obj);
            }
            if (obj->odiluted) {
                  obj->odiluted = 0;
#ifdef UNIXPC
                  obj->blessed = FALSE;
                  obj->cursed = FALSE;
#else
                  obj->blessed = obj->cursed = FALSE;
#endif
                  obj->otyp = POT_WATER;
            } else obj->odiluted++;
            update_inventory();
            return TRUE;
          case SCROLL_CLASS:
            if (obj->otyp != SCR_BLANK_PAPER
#ifdef MAIL
                && obj->otyp != SCR_MAIL
#endif
                ) {
                  if (!Blind) {
                        boolean oq1 = obj->quan == 1L;
                        pline_The("scroll%s fade%s.",
                              oq1 ? "" : "s",
                              oq1 ? "s" : "");
                  }
                  if(obj->unpaid && costly_spot(u.ux, u.uy)) {
                      You("erase it, you pay for it.");
                      bill_dummy_object(obj);
                  }
                  obj->otyp = SCR_BLANK_PAPER;
                  obj->spe = 0;
                  update_inventory();
                  return TRUE;
            } else break;
          case SPBOOK_CLASS:
            if (obj->otyp != SPE_BLANK_PAPER) {

                  if (obj->otyp == SPE_BOOK_OF_THE_DEAD) {
      pline("%s suddenly heats up; steam rises and it remains dry.",
                        The(xname(obj)));
                  } else {
                      if (!Blind) {
                            boolean oq1 = obj->quan == 1L;
                            pline_The("spellbook%s fade%s.",
                              oq1 ? "" : "s", oq1 ? "s" : "");
                      }
                      if(obj->unpaid && costly_spot(u.ux, u.uy)) {
                          You("erase it, you pay for it.");
                          bill_dummy_object(obj);
                      }
                      obj->otyp = SPE_BLANK_PAPER;
                      update_inventory();
                  }
                  return TRUE;
            }
      }
      pline("%s %s wet.", Your_buf, aobjnam(obj,"get"));
      return FALSE;
}

int
dodip()
{
      register struct obj *potion, *obj;
      const char *tmp;
      uchar here;
      char allowall[2];
      short mixture;
      char qbuf[QBUFSZ], Your_buf[BUFSZ];

      allowall[0] = ALL_CLASSES; allowall[1] = '\0';
      if(!(obj = getobj(allowall, "dip")))
            return(0);

      here = levl[u.ux][u.uy].typ;
      /* Is there a fountain to dip into here? */
      if (IS_FOUNTAIN(here)) {
            if(yn("Dip it into the fountain?") == 'y') {
                  dipfountain(obj);
                  return(1);
            }
      } else if (is_pool(u.ux,u.uy)) {
            tmp = (here == POOL) ? "pool" : "moat";
            Sprintf(qbuf, "Dip it into the %s?", tmp);
            if (yn(qbuf) == 'y') {
                if (Levitation)
                  floating_above(tmp);
                else {
                  (void) get_wet(obj);
                  if (obj->otyp == POT_ACID) useup(obj);
                }
                return 1;
            }
      }

      if(!(potion = getobj(beverages, "dip into")))
            return(0);
      if (potion == obj && potion->quan == 1L) {
            pline("That is a potion bottle, not a Klein bottle!");
            return 0;
      }
      if(potion->otyp == POT_WATER) {
            boolean useeit = !Blind;
            if (useeit) (void) Shk_Your(Your_buf, obj);
            if (potion->blessed) {
                  if (obj->cursed) {
                        if (useeit)
                            pline("%s %s %s.",
                                Your_buf,
                                aobjnam(obj, "softly glow"),
                                hcolor(amber));
                        uncurse(obj);
                        obj->bknown=1;
      poof:
                        if(!(objects[potion->otyp].oc_name_known) &&
                           !(objects[potion->otyp].oc_uname))
                              docall(potion);
                        useup(potion);
                        return(1);
                  } else if(!obj->blessed) {
                        if (useeit) {
                            tmp = hcolor(light_blue);
                            pline("%s %s with a%s %s aura.",
                                Your_buf,
                                aobjnam(obj, "softly glow"),
                                index(vowels, *tmp) ? "n" : "", tmp);
                        }
                        bless(obj);
                        obj->bknown=1;
                        goto poof;
                  }
            } else if (potion->cursed) {
                  if (obj->blessed) {
                        if (useeit)
                            pline("%s %s %s.",
                                Your_buf,
                                aobjnam(obj, "glow"),
                                hcolor((const char *)"brown"));
                        unbless(obj);
                        obj->bknown=1;
                        goto poof;
                  } else if(!obj->cursed) {
                        if (useeit) {
                            tmp = hcolor(Black);
                            pline("%s %s with a%s %s aura.",
                                Your_buf,
                                aobjnam(obj, "glow"),
                                index(vowels, *tmp) ? "n" : "", tmp);
                        }
                        curse(obj);
                        obj->bknown=1;
                        goto poof;
                  }
            } else
                  if (get_wet(obj))
                      goto poof;
      } else if (obj->otyp == POT_POLYMORPH ||
            potion->otyp == POT_POLYMORPH) {
          /* some objects can't be polymorphed */
          if (obj->otyp == potion->otyp ||      /* both POT_POLY */
                obj->otyp == WAN_POLYMORPH ||
                obj->otyp == SPE_POLYMORPH ||
                obj_resists(obj->otyp == POT_POLYMORPH ?
                        potion : obj, 5, 95)) {
            pline(nothing_happens);
          } else {
            /* KMH, conduct */
            u.uconduct.polypiles++;

            poly_obj(obj, STRANGE_OBJECT);
            makeknown(POT_POLYMORPH);
            useup(potion);
          }
          return(1);
      } else if(obj->oclass == POTION_CLASS && obj->otyp != potion->otyp) {
            /* Mixing potions is dangerous... */
            pline_The("potions mix...");
            /* KMH, balance patch -- acid is particularly unstable */
            if (obj->cursed || obj->otyp == POT_ACID || !rn2(10)) {
                  pline("BOOM!  They explode!");
                  exercise(A_STR, FALSE);
                  potionbreathe(obj);
                  useup(obj);
                  useup(potion);
                  losehp(rnd(10), "alchemic blast", KILLED_BY_AN);
                  return(1);
            }

            obj->blessed = obj->cursed = obj->bknown = 0;
            if (Blind || Hallucination) obj->dknown = 0;

            if ((mixture = mixtype(obj, potion)) != 0) {
                  obj->otyp = mixture;
            } else {
                switch (obj->odiluted ? 1 : rnd(8)) {
                  case 1:
                        obj->otyp = POT_WATER;
                        break;
                  case 2:
                  case 3:
                        obj->otyp = POT_SICKNESS;
                        break;
                  case 4:
                        {
                          struct obj *otmp;
                          otmp = mkobj(POTION_CLASS,FALSE);
                          obj->otyp = otmp->otyp;
                          obfree(otmp, (struct obj *)0);
                        }
                        break;
                  default:
                        if (!Blind)
                    pline_The("mixture glows brightly and evaporates.");
                        useup(obj);
                        useup(potion);
                        return(1);
                }
            }

            obj->odiluted = (obj->otyp != POT_WATER);

            if (obj->otyp == POT_WATER && !Hallucination) {
                  pline_The("mixture bubbles%s.",
                        Blind ? "" : ", then clears");
            } else if (!Blind) {
                  pline_The("mixture looks %s.",
                        hcolor(OBJ_DESCR(objects[obj->otyp])));
            }

            useup(potion);
            return(1);
      }

#ifdef INVISIBLE_OBJECTS
      if (potion->otyp == POT_INVISIBILITY && !obj->oinvis) {
            obj->oinvis = TRUE;
            if (!Blind) {
                if (!See_invisible) pline("Where did %s go?",
                        the(xname(obj)));
                else You("notice a little haziness around %s.",
                        the(xname(obj)));
            }
            goto poof;
      } else if (potion->otyp == POT_SEE_INVISIBLE && obj->oinvis) {
            obj->oinvis = FALSE;
            if (!Blind) {
                if (!See_invisible) pline("So that's where %s went!",
                        the(xname(obj)));
                else pline_The("haziness around %s disappears.",
                        the(xname(obj)));
            }
            goto poof;
      }
#endif

      if(is_poisonable(obj)) {
          if(potion->otyp == POT_SICKNESS && !obj->opoisoned) {
            char buf[BUFSZ];
            Strcpy(buf, The(xname(potion)));
            pline("%s form%s a coating on %s.",
                  buf, potion->quan == 1L ? "s" : "", the(xname(obj)));
            obj->opoisoned = TRUE;
            goto poof;
          } else if(obj->opoisoned &&
                  (potion->otyp == POT_HEALING ||
                   potion->otyp == POT_EXTRA_HEALING ||
                   potion->otyp == POT_FULL_HEALING)) {
            pline("A coating wears off %s.", the(xname(obj)));
            obj->opoisoned = 0;
            goto poof;
          }
      }

      if (potion->otyp == POT_OIL &&
            (obj->oclass == WEAPON_CLASS || is_weptool(obj))) {
          boolean wisx = FALSE;
          if (potion->lamplit) {    /* burning */
            int omat = objects[obj->otyp].oc_material;
            if (obj->oerodeproof || obj_resists(obj, 5, 95) ||
                  /* `METAL' should not be confused with is_metallic() */
                  omat == METAL || omat == MITHRIL || omat == BONE) {
                pline("%s seem%s to burn for a moment.",
                    Yname2(obj),
                    (obj->quan > 1L) ? "" : "s");
            } else {
                if (omat == PLASTIC) obj->oeroded = MAX_ERODE;
                pline_The("burning oil %s %s.",
                      obj->oeroded == MAX_ERODE ? "destroys" : "damages",
                      yname(obj));
                if (obj->oeroded == MAX_ERODE) {
                  obj_extract_self(obj);
                  obfree(obj, (struct obj *)0);
                  obj = (struct obj *) 0;
                } else {
                  /* should check for and do something about
                     damaging unpaid shop goods here */
                  obj->oeroded++;
                }
            }
          } else if (potion->cursed) {
            pline_The("potion spills and covers your %s with oil.",
                    makeplural(body_part(FINGER)));
            incr_itimeout(&Glib, d(2,10));
          /* Oil removes rust and corrosion, but doesn't unburn.
           * Arrows, etc are classed as metallic due to arrowhead
           * material, but dipping in oil shouldn't repair them.
           */
          } else if ((!is_rustprone(obj) && !is_corrodeable(obj)) ||
                        is_ammo(obj) || (!obj->oeroded && !obj->oeroded2)) {
            /* uses up potion, doesn't set obj->greased */
            pline("%s gleam%s with an oily sheen.",
                  Yname2(obj),
                  (obj->quan > 1L) ? "" : "s");
          } else {
            pline("%s %s less %s.",
                  Yname2(obj),
                  (obj->quan > 1L) ? "are" : "is",
                  (obj->oeroded && obj->oeroded2) ? "corroded and rusty" :
                  obj->oeroded ? "rusty" : "corroded");
            if (obj->oeroded > 0) obj->oeroded--;
            if (obj->oeroded2 > 0) obj->oeroded2--;
            wisx = TRUE;
          }
          exercise(A_WIS, wisx);
          makeknown(potion->otyp);
          useup(potion);
          return 1;
      }

      /* Allow filling of MAGIC_LAMPs to prevent identification by player */
      if ((obj->otyp == OIL_LAMP || obj->otyp == MAGIC_LAMP) &&
         (potion->otyp == POT_OIL)) {
          /* Turn off engine before fueling, turn off fuel too :-)  */
          if (obj->lamplit || potion->lamplit) {
            useup(potion);
            explode(u.ux, u.uy, 11, d(6,6), 0);
            exercise(A_WIS, FALSE);
            return 1;
          }
          /* Adding oil to an empty magic lamp renders it into an oil lamp */
          if ((obj->otyp == MAGIC_LAMP) && obj->spe == 0) {
            obj->otyp = OIL_LAMP;
            obj->age = 0;
          }
          if (obj->age > 1000L) {
            pline("%s is full.", Yname2(obj));
          } else {
            You("fill %s with oil.", yname(obj));
            check_unpaid(potion);   /* Yendorian Fuel Tax */
            obj->age += 2*potion->age;    /* burns more efficiently */
            if (obj->age > 1500L) obj->age = 1500L;
            useup(potion);
            exercise(A_WIS, TRUE);
          }
          obj->spe = 1;
          update_inventory();
          return 1;
      }

      if ((obj->otyp == UNICORN_HORN || obj->otyp == AMETHYST) &&
          (mixture = mixtype(obj, potion)) != 0) {
            /* with multiple merged potions, we should split off one and
               just clear it, but clearing them all together is easier */
            boolean more_than_one = potion->quan > 1L;
            potion->otyp = mixture;
            potion->blessed = 0;
            if (mixture == POT_WATER)
                potion->cursed = potion->odiluted = 0;
            else
                potion->cursed = obj->cursed;  /* odiluted left as-is */
            if (Blind)
                  potion->dknown = FALSE;
            else {
                  if (mixture == POT_WATER &&
#ifdef DCC30_BUG
                      (potion->dknown = !Hallucination,
                       potion->dknown != 0))
#else
                      (potion->dknown = !Hallucination) != 0)
#endif
                        pline_The("potion%s clear%s.",
                              more_than_one ? "s" : "",
                              more_than_one ? "" : "s");
                  else
                        pline_The("potion%s turn%s %s.",
                              more_than_one ? "s" : "",
                              more_than_one ? "" : "s",
                              hcolor(OBJ_DESCR(objects[mixture])));
            }
            update_inventory();
            return(1);
      }

      pline("Interesting...");
      return(1);
}


void
djinni_from_bottle(obj)
register struct obj *obj;
{
      struct monst *mtmp;
      int chance;

      if(!(mtmp = makemon(&mons[PM_DJINNI], u.ux, u.uy, NO_MM_FLAGS))){
            pline("It turns out to be empty.");
            return;
      }

      if (!Blind) {
            pline("In a cloud of smoke, %s emerges!", a_monnam(mtmp));
            pline("%s speaks.", Monnam(mtmp));
      } else {
            You("smell acrid fumes.");
            pline("%s speaks.", Something);
      }

      chance = rn2(5);
      if (obj->blessed) chance = (chance == 4) ? rnd(4) : 0;
      else if (obj->cursed) chance = (chance == 0) ? rn2(4) : 4;
      /* 0,1,2,3,4:  b=80%,5,5,5,5; nc=20%,20,20,20,20; c=5%,5,5,5,80 */

      switch (chance) {
      case 0 : verbalize("I am in your debt.  I will grant one wish!");
            makewish();
            mongone(mtmp);
            break;
      case 1 : verbalize("Thank you for freeing me!");
            (void) tamedog(mtmp, (struct obj *)0);
            break;
      case 2 : verbalize("You freed me!");
            mtmp->mpeaceful = TRUE;
            set_malign(mtmp);
            break;
      case 3 : verbalize("It is about time!");
            pline("%s vanishes.", Monnam(mtmp));
            mongone(mtmp);
            break;
      default: verbalize("You disturbed me, fool!");
            break;
      }
}

/* clone a gremlin or mold (2nd arg non-null implies heat as the trigger);
   hit points are cut in half (odd HP stays with original) */
struct monst *
split_mon(mon, mtmp)
struct monst *mon,      /* monster being split */
           *mtmp; /* optional attacker whose heat triggered it */
{
      struct monst *mtmp2;
      char reason[BUFSZ];

      reason[0] = '\0';
      if (mtmp) Sprintf(reason, " from %s heat",
                    (mtmp == &youmonst) ? (const char *)"your" :
                        (const char *)s_suffix(mon_nam(mtmp)));

      if (mon == &youmonst) {
          mtmp2 = cloneu();
          if (mtmp2) {
            mtmp2->mhpmax = u.mhmax / 2;
            u.mhmax -= mtmp2->mhpmax;
            flags.botl = 1;
            You("multiply%s!", reason);
          }
      } else {
          mtmp2 = clone_mon(mon);
          if (mtmp2) {
            mtmp2->mhpmax = mon->mhpmax / 2;
            mon->mhpmax -= mtmp2->mhpmax;
            if (canspotmon(mon))
                pline("%s multiplies%s!", Monnam(mon), reason);
          }
      }
      return mtmp2;
}

#endif /* OVLB */

/*potion.c*/

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