games/hack/hack.mon.c

   1 /* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
   2 /* hack.mon.c - version 1.0.3 */
   3 /* $FreeBSD: src/games/hack/hack.mon.c,v 1.5 1999/11/16 10:26:37 marcel Exp $ */
   4 /* $DragonFly: src/games/hack/hack.mon.c,v 1.6 2008/06/05 18:01:49 swildner Exp $ */
   5
   6 #include "hack.h"
   7 #include "hack.mfndpos.h"
   8
   9 int warnlevel;          /* used by movemon and dochugw */
  10 long lastwarntime;
  11 int lastwarnlev;
  12 static const char *warnings[] = {
  13         "white", "pink", "red", "ruby", "purple", "black"
  14 };
  15
  16 static int      dochugw(struct monst *);
  17 static void     mpickgold(struct monst *);
  18 static void     mpickgems(struct monst *);
  19 static void     dmonsfree(void);
  20 static bool     ishuman(struct monst *);
  21
  22 void
  23 movemon(void)
  24 {
  25         struct monst *mtmp;
  26         int fr;
  27
  28         warnlevel = 0;
  29
  30         while(1) {
  31                 /* find a monster that we haven't treated yet */
  32                 /* note that mtmp or mtmp->nmon might get killed
  33                    while mtmp moves, so we cannot just walk down the
  34                    chain (even new monsters might get created!) */
  35                 for(mtmp = fmon; mtmp; mtmp = mtmp->nmon)
  36                         if(mtmp->mlstmv < moves) goto next_mon;
  37                 /* treated all monsters */
  38                 break;
  39
  40         next_mon:
  41                 mtmp->mlstmv = moves;
  42
  43                 /* most monsters drown in pools */
  44                 { boolean inpool, iseel;
  45
  46                   inpool = (levl[mtmp->mx][mtmp->my].typ == POOL);
  47                   iseel = (mtmp->data->mlet == ';');
  48                   if(inpool && !iseel) {
  49                         if(cansee(mtmp->mx,mtmp->my))
  50                             pline("%s drowns.", Monnam(mtmp));
  51                         mondead(mtmp);
  52                         continue;
  53                   }
  54                 /* but eels have a difficult time outside */
  55                   if(iseel && !inpool) {
  56                         if(mtmp->mhp > 1) mtmp->mhp--;
  57                         mtmp->mflee = 1;
  58                         mtmp->mfleetim += 2;
  59                   }
  60                 }
  61                 if(mtmp->mblinded && !--mtmp->mblinded)
  62                         mtmp->mcansee = 1;
  63                 if(mtmp->mfleetim && !--mtmp->mfleetim)
  64                         mtmp->mflee = 0;
  65                 if(mtmp->mimic) continue;
  66                 if(mtmp->mspeed != MSLOW || !(moves%2)){
  67                         /* continue if the monster died fighting */
  68                         fr = -1;
  69                         if(Conflict && cansee(mtmp->mx,mtmp->my)
  70                                 && (fr = fightm(mtmp)) == 2)
  71                                 continue;
  72                         if(fr<0 && dochugw(mtmp))
  73                                 continue;
  74                 }
  75                 if(mtmp->mspeed == MFAST && dochugw(mtmp))
  76                         continue;
  77         }
  78
  79         warnlevel -= u.ulevel;
  80         if(warnlevel >= SIZE(warnings))
  81                 warnlevel = SIZE(warnings)-1;
  82         if(warnlevel >= 0)
  83         if(warnlevel > lastwarnlev || moves > lastwarntime + 5){
  84             const char *rr;
  85             switch(Warning & (LEFT_RING | RIGHT_RING)){
  86             case LEFT_RING:
  87                 rr = "Your left ring glows";
  88                 break;
  89             case RIGHT_RING:
  90                 rr = "Your right ring glows";
  91                 break;
  92             case LEFT_RING | RIGHT_RING:
  93                 rr = "Both your rings glow";
  94                 break;
  95             default:
  96                 rr = "Your fingertips glow";
  97                 break;
  98             }
  99             pline("%s %s!", rr, warnings[warnlevel]);
 100             lastwarntime = moves;
 101             lastwarnlev = warnlevel;
 102         }
 103
 104         dmonsfree();    /* remove all dead monsters */
 105 }
 106
 107 void
 108 justswld(struct monst *mtmp, const char *name)
 109 {
 110
 111         mtmp->mx = u.ux;
 112         mtmp->my = u.uy;
 113         u.ustuck = mtmp;
 114         pmon(mtmp);
 115         kludge("%s swallows you!",name);
 116         more();
 117         seeoff(1);
 118         u.uswallow = 1;
 119         u.uswldtim = 0;
 120         swallowed();
 121 }
 122
 123 void
 124 youswld(struct monst *mtmp, int dam, int die, const char *name)
 125 {
 126         if(mtmp != u.ustuck) return;
 127         kludge("%s digests you!",name);
 128         u.uhp -= dam;
 129         if((int)u.uswldtim++ >= die){   /* a3 */
 130                 pline("It totally digests you!");
 131                 u.uhp = -1;
 132         }
 133         if(u.uhp < 1) done_in_by(mtmp);
 134         /* flags.botlx = 1; */          /* should we show status line ? */
 135 }
 136
 137 static int
 138 dochugw(struct monst *mtmp)
 139 {
 140 int x = mtmp->mx;
 141 int y = mtmp->my;
 142 int d1 = dochug(mtmp);
 143 int dd;
 144         if(!d1)         /* monster still alive */
 145         if(Warning)
 146         if(!mtmp->mpeaceful)
 147         if(mtmp->data->mlevel > warnlevel)
 148         if((dd = dist(mtmp->mx,mtmp->my)) < dist(x,y))
 149         if(dd < 100)
 150         if(!canseemon(mtmp))
 151                 warnlevel = mtmp->data->mlevel;
 152         return(d1);
 153 }
 154
 155 /* returns 1 if monster died moving, 0 otherwise */
 156 bool
 157 dochug(struct monst *mtmp)
 158 {
 159         struct permonst *mdat;
 160         int tmp = 0, nearby, scared;
 161
 162         if(mtmp->cham && !rn2(6))
 163                 newcham(mtmp, &mons[dlevel+14+rn2(CMNUM-14-dlevel)]);
 164         mdat = mtmp->data;
 165         if(mdat->mlevel < 0)
 166                 panic("bad monster %c (%d)",mdat->mlet,mdat->mlevel);
 167
 168         /* regenerate monsters */
 169         if((!(moves%20) || index(MREGEN, mdat->mlet)) &&
 170             mtmp->mhp < mtmp->mhpmax)
 171                 mtmp->mhp++;
 172
 173         if(mtmp->mfroz) return(0); /* frozen monsters don't do anything */
 174
 175         if(mtmp->msleep) {
 176                 /* wake up, or get out of here. */
 177                 /* ettins are hard to surprise */
 178                 /* Nymphs and Leprechauns do not easily wake up */
 179                 if(cansee(mtmp->mx,mtmp->my) &&
 180                         (!Stealth || (mdat->mlet == 'e' && rn2(10))) &&
 181                         (!index("NL",mdat->mlet) || !rn2(50)) &&
 182                         (Aggravate_monster || index("d1", mdat->mlet)
 183                                 || (!rn2(7) && !mtmp->mimic)))
 184                         mtmp->msleep = 0;
 185                 else return(0);
 186         }
 187
 188         /* not frozen or sleeping: wipe out texts written in the dust */
 189         wipe_engr_at(mtmp->mx, mtmp->my, 1);
 190
 191         /* confused monsters get unconfused with small probability */
 192         if(mtmp->mconf && !rn2(50)) mtmp->mconf = 0;
 193
 194         /* some monsters teleport */
 195         if(mtmp->mflee && index("tNL", mdat->mlet) && !rn2(40)){
 196                 rloc(mtmp);
 197                 return(0);
 198         }
 199         if(mdat->mmove < rnd(6)) return(0);
 200
 201         /* fleeing monsters might regain courage */
 202         if(mtmp->mflee && !mtmp->mfleetim
 203             && mtmp->mhp == mtmp->mhpmax && !rn2(25))
 204                 mtmp->mflee = 0;
 205
 206         nearby = (dist(mtmp->mx, mtmp->my) < 3);
 207         scared = (nearby && (sengr_at("Elbereth", u.ux, u.uy) ||
 208                         sobj_at(SCR_SCARE_MONSTER, u.ux, u.uy)));
 209         if(scared && !mtmp->mflee) {
 210                 mtmp->mflee = 1;
 211                 mtmp->mfleetim = (rn2(7) ? rnd(10) : rnd(100));
 212         }
 213
 214         if(!nearby ||
 215                 mtmp->mflee ||
 216                 mtmp->mconf ||
 217                 (mtmp->minvis && !rn2(3)) ||
 218                 (index("BIuy", mdat->mlet) && !rn2(4)) ||
 219                 (mdat->mlet == 'L' && !u.ugold && (mtmp->mgold || rn2(2))) ||
 220                 (!mtmp->mcansee && !rn2(4)) ||
 221                 mtmp->mpeaceful
 222            ) {
 223                 tmp = m_move(mtmp,0);   /* 2: monster died moving */
 224                 if(tmp == 2 || (tmp && mdat->mmove <= 12))
 225                         return(tmp == 2);
 226         }
 227
 228         if(!index("Ea", mdat->mlet) && nearby &&
 229          !mtmp->mpeaceful && u.uhp > 0 && !scared) {
 230                 if(mhitu(mtmp))
 231                         return(1);      /* monster died (e.g. 'y' or 'F') */
 232         }
 233         /* extra movement for fast monsters */
 234         if(mdat->mmove-12 > rnd(12)) tmp = m_move(mtmp,1);
 235         return(tmp == 2);
 236 }
 237
 238 int
 239 m_move(struct monst *mtmp, int after)
 240 {
 241         struct monst *mtmp2;
 242         int nx,ny,omx,omy,appr,nearer,cnt,i,j;
 243         xchar gx,gy,nix,niy,chcnt;
 244         schar chi;
 245         boolean likegold = 0, likegems = 0, likeobjs;
 246         char msym = mtmp->data->mlet;
 247         schar mmoved = 0;       /* not strictly nec.: chi >= 0 will do */
 248         coord poss[9];
 249         int info[9];
 250
 251         if(mtmp->mfroz || mtmp->msleep)
 252                 return(0);
 253         if(mtmp->mtrapped) {
 254                 i = mintrap(mtmp);
 255                 if(i == 2) return(2);   /* he died */
 256                 if(i == 1) return(0);   /* still in trap, so didnt move */
 257         }
 258         if(mtmp->mhide && o_at(mtmp->mx,mtmp->my) && rn2(10))
 259                 return(0);              /* do not leave hiding place */
 260
 261 #ifndef NOWORM
 262         if(mtmp->wormno)
 263                 goto not_special;
 264 #endif /* NOWORM */
 265
 266         /* my dog gets a special treatment */
 267         if(mtmp->mtame) {
 268                 return( dog_move(mtmp, after) );
 269         }
 270
 271         /* likewise for shopkeeper */
 272         if(mtmp->isshk) {
 273                 mmoved = shk_move(mtmp);
 274                 if(mmoved >= 0)
 275                         goto postmov;
 276                 mmoved = 0;             /* follow player outside shop */
 277         }
 278
 279         /* and for the guard */
 280         if(mtmp->isgd) {
 281                 mmoved = gd_move();
 282                 goto postmov;
 283         }
 284
 285 /* teleport if that lies in our nature ('t') or when badly wounded ('1') */
 286         if((msym == 't' && !rn2(5))
 287         || (msym == '1' && (mtmp->mhp < 7 || (!xdnstair && !rn2(5))
 288                 || levl[u.ux][u.uy].typ == STAIRS))) {
 289                 if(mtmp->mhp < 7 || (msym == 't' && rn2(2)))
 290                         rloc(mtmp);
 291                 else
 292                         mnexto(mtmp);
 293                 mmoved = 1;
 294                 goto postmov;
 295         }
 296
 297         /* spit fire ('D') or use a wand ('1') when appropriate */
 298         if(index("D1", msym))
 299                 inrange(mtmp);
 300
 301         if(msym == 'U' && !mtmp->mcan && canseemon(mtmp) &&
 302             mtmp->mcansee && rn2(5)) {
 303                 if(!Confusion)
 304                         pline("%s's gaze has confused you!", Monnam(mtmp));
 305                 else
 306                         pline("You are getting more and more confused.");
 307                 if(rn2(3)) mtmp->mcan = 1;
 308                 Confusion += d(3,4);            /* timeout */
 309         }
 310 not_special:
 311         if(!mtmp->mflee && u.uswallow && u.ustuck != mtmp) return(1);
 312         appr = 1;
 313         if(mtmp->mflee) appr = -1;
 314         if(mtmp->mconf || Invis ||  !mtmp->mcansee ||
 315                 (index("BIy", msym) && !rn2(3)))
 316                 appr = 0;
 317         omx = mtmp->mx;
 318         omy = mtmp->my;
 319         gx = u.ux;
 320         gy = u.uy;
 321         if(msym == 'L' && appr == 1 && mtmp->mgold > u.ugold)
 322                 appr = -1;
 323
 324         /* random criterion for 'smell' or track finding ability
 325            should use mtmp->msmell or sth
 326          */
 327         if(msym == '@' ||
 328           ('a' <= msym && msym <= 'z')) {
 329         coord *cp;
 330         schar mroom;
 331                 mroom = inroom(omx,omy);
 332                 if(mroom < 0 || mroom != inroom(u.ux,u.uy)){
 333                     cp = gettrack(omx,omy);
 334                     if(cp){
 335                         gx = cp->x;
 336                         gy = cp->y;
 337                     }
 338                 }
 339         }
 340
 341         /* look for gold or jewels nearby */
 342         likegold = (index("LOD", msym) != NULL);
 343         likegems = (index("ODu", msym) != NULL);
 344         likeobjs = mtmp->mhide;
 345 #define SRCHRADIUS      25
 346         { xchar mind = SRCHRADIUS;              /* not too far away */
 347           int dd;
 348           if(likegold){
 349                 struct gold *gold;
 350                 for(gold = fgold; gold; gold = gold->ngold)
 351                   if((dd = DIST(omx,omy,gold->gx,gold->gy)) < mind){
 352                     mind = dd;
 353                     gx = gold->gx;
 354                     gy = gold->gy;
 355                 }
 356           }
 357           if(likegems || likeobjs){
 358                 struct obj *otmp;
 359                 for(otmp = fobj; otmp; otmp = otmp->nobj)
 360                 if(likeobjs || otmp->olet == GEM_SYM)
 361                 if(msym != 'u' ||
 362                         objects[otmp->otyp].g_val != 0)
 363                 if((dd = DIST(omx,omy,otmp->ox,otmp->oy)) < mind){
 364                     mind = dd;
 365                     gx = otmp->ox;
 366                     gy = otmp->oy;
 367                 }
 368           }
 369           if(mind < SRCHRADIUS && appr == -1) {
 370                 if(dist(omx,omy) < 10) {
 371                     gx = u.ux;
 372                     gy = u.uy;
 373                 } else
 374                     appr = 1;
 375           }
 376         }
 377         nix = omx;
 378         niy = omy;
 379         cnt = mfndpos(mtmp,poss,info,
 380                 msym == 'u' ? NOTONL :
 381                 (msym == '@' || msym == '1') ? (ALLOW_SSM | ALLOW_TRAPS) :
 382                 index(UNDEAD, msym) ? NOGARLIC : ALLOW_TRAPS);
 383                 /* ALLOW_ROCK for some monsters ? */
 384         chcnt = 0;
 385         chi = -1;
 386         for(i=0; i<cnt; i++) {
 387                 nx = poss[i].x;
 388                 ny = poss[i].y;
 389                 for(j=0; j<MTSZ && j<cnt-1; j++)
 390                         if(nx == mtmp->mtrack[j].x && ny == mtmp->mtrack[j].y)
 391                                 if(rn2(4*(cnt-j))) goto nxti;
 392 #ifdef STUPID
 393                 /* some stupid compilers think that this is too complicated */
 394                 { int d1 = DIST(nx,ny,gx,gy);
 395                   int d2 = DIST(nix,niy,gx,gy);
 396                   nearer = (d1 < d2);
 397                 }
 398 #else
 399                 nearer = (DIST(nx,ny,gx,gy) < DIST(nix,niy,gx,gy));
 400 #endif /* STUPID */
 401                 if((appr == 1 && nearer) || (appr == -1 && !nearer) ||
 402                         !mmoved ||
 403                         (!appr && !rn2(++chcnt))){
 404                         nix = nx;
 405                         niy = ny;
 406                         chi = i;
 407                         mmoved = 1;
 408                 }
 409         nxti:   ;
 410         }
 411         if(mmoved){
 412                 if(info[chi] & ALLOW_M){
 413                         mtmp2 = m_at(nix,niy);
 414                         if(hitmm(mtmp,mtmp2) == 1 && rn2(4) &&
 415                           hitmm(mtmp2,mtmp) == 2) return(2);
 416                         return(0);
 417                 }
 418                 if(info[chi] & ALLOW_U){
 419                   hitu(mtmp, d(mtmp->data->damn, mtmp->data->damd)+1);
 420                   return(0);
 421                 }
 422                 mtmp->mx = nix;
 423                 mtmp->my = niy;
 424                 for(j=MTSZ-1; j>0; j--) mtmp->mtrack[j] = mtmp->mtrack[j-1];
 425                 mtmp->mtrack[0].x = omx;
 426                 mtmp->mtrack[0].y = omy;
 427 #ifndef NOWORM
 428                 if(mtmp->wormno) worm_move(mtmp);
 429 #endif /* NOWORM */
 430         } else {
 431                 if(msym == 'u' && rn2(2)){
 432                         rloc(mtmp);
 433                         return(0);
 434                 }
 435 #ifndef NOWORM
 436                 if(mtmp->wormno) worm_nomove(mtmp);
 437 #endif /* NOWORM */
 438         }
 439 postmov:
 440         if(mmoved == 1) {
 441                 if(mintrap(mtmp) == 2)  /* he died */
 442                         return(2);
 443                 if(likegold) mpickgold(mtmp);
 444                 if(likegems) mpickgems(mtmp);
 445                 if(mtmp->mhide) mtmp->mundetected = 1;
 446         }
 447         pmon(mtmp);
 448         return(mmoved);
 449 }
 450
 451 static void
 452 mpickgold(struct monst *mtmp)
 453 {
 454 struct gold *gold;
 455         while((gold = g_at(mtmp->mx, mtmp->my))){
 456                 mtmp->mgold += gold->amount;
 457                 freegold(gold);
 458                 if(levl[mtmp->mx][mtmp->my].scrsym == '$')
 459                         newsym(mtmp->mx, mtmp->my);
 460         }
 461 }
 462
 463 static void
 464 mpickgems(struct monst *mtmp)
 465 {
 466 struct obj *otmp;
 467         for(otmp = fobj; otmp; otmp = otmp->nobj)
 468         if(otmp->olet == GEM_SYM)
 469         if(otmp->ox == mtmp->mx && otmp->oy == mtmp->my)
 470         if(mtmp->data->mlet != 'u' || objects[otmp->otyp].g_val != 0){
 471                 freeobj(otmp);
 472                 mpickobj(mtmp, otmp);
 473                 if(levl[mtmp->mx][mtmp->my].scrsym == GEM_SYM)
 474                         newsym(mtmp->mx, mtmp->my);     /* %% */
 475                 return; /* pick only one object */
 476         }
 477 }
 478
 479 /* return number of acceptable neighbour positions */
 480 int
 481 mfndpos(struct monst *mon, coord poss[9], int info[9], int flag)
 482 {
 483         int x,y,nx,ny,cnt = 0,ntyp;
 484         struct monst *mtmp;
 485         int nowtyp;
 486         boolean pool;
 487
 488         x = mon->mx;
 489         y = mon->my;
 490         nowtyp = levl[x][y].typ;
 491
 492         pool = (mon->data->mlet == ';');
 493 nexttry:        /* eels prefer the water, but if there is no water nearby,
 494                    they will crawl over land */
 495         if(mon->mconf) {
 496                 flag |= ALLOW_ALL;
 497                 flag &= ~NOTONL;
 498         }
 499         for(nx = x-1; nx <= x+1; nx++) for(ny = y-1; ny <= y+1; ny++)
 500         if(nx != x || ny != y) if(isok(nx,ny))
 501         if(!IS_ROCK(ntyp = levl[nx][ny].typ))
 502         if(!(nx != x && ny != y && (nowtyp == DOOR || ntyp == DOOR)))
 503         if((ntyp == POOL) == pool) {
 504                 info[cnt] = 0;
 505                 if(nx == u.ux && ny == u.uy){
 506                         if(!(flag & ALLOW_U)) continue;
 507                         info[cnt] = ALLOW_U;
 508                 } else if((mtmp = m_at(nx,ny))){
 509                         if(!(flag & ALLOW_M)) continue;
 510                         info[cnt] = ALLOW_M;
 511                         if(mtmp->mtame){
 512                                 if(!(flag & ALLOW_TM)) continue;
 513                                 info[cnt] |= ALLOW_TM;
 514                         }
 515                 }
 516                 if(sobj_at(CLOVE_OF_GARLIC, nx, ny)) {
 517                         if(flag & NOGARLIC) continue;
 518                         info[cnt] |= NOGARLIC;
 519                 }
 520                 if(sobj_at(SCR_SCARE_MONSTER, nx, ny) ||
 521                    (!mon->mpeaceful && sengr_at("Elbereth", nx, ny))) {
 522                         if(!(flag & ALLOW_SSM)) continue;
 523                         info[cnt] |= ALLOW_SSM;
 524                 }
 525                 if(sobj_at(ENORMOUS_ROCK, nx, ny)) {
 526                         if(!(flag & ALLOW_ROCK)) continue;
 527                         info[cnt] |= ALLOW_ROCK;
 528                 }
 529                 if(!Invis && online(nx,ny)){
 530                         if(flag & NOTONL) continue;
 531                         info[cnt] |= NOTONL;
 532                 }
 533                 /* we cannot avoid traps of an unknown kind */
 534                 { struct trap *ttmp = t_at(nx, ny);
 535                   int tt;
 536                         if(ttmp) {
 537                                 tt = 1 << ttmp->ttyp;
 538                                 if(mon->mtrapseen & tt){
 539                                         if(!(flag & tt)) continue;
 540                                         info[cnt] |= tt;
 541                                 }
 542                         }
 543                 }
 544                 poss[cnt].x = nx;
 545                 poss[cnt].y = ny;
 546                 cnt++;
 547         }
 548         if(!cnt && pool && nowtyp != POOL) {
 549                 pool = FALSE;
 550                 goto nexttry;
 551         }
 552         return(cnt);
 553 }
 554
 555 int
 556 dist(int x, int y)
 557 {
 558         return((x-u.ux)*(x-u.ux) + (y-u.uy)*(y-u.uy));
 559 }
 560
 561 void
 562 poisoned(const char *string, const char *pname)
 563 {
 564         int i;
 565
 566         if(Blind) pline("It was poisoned.");
 567         else pline("The %s was poisoned!",string);
 568         if(Poison_resistance) {
 569                 pline("The poison doesn't seem to affect you.");
 570                 return;
 571         }
 572         i = rn2(10);
 573         if(i == 0) {
 574                 u.uhp = -1;
 575                 pline("I am afraid the poison was deadly ...");
 576         } else if(i <= 5) {
 577                 losestr(rn1(3,3));
 578         } else {
 579                 losehp(rn1(10,6), pname);
 580         }
 581         if(u.uhp < 1) {
 582                 killer = pname;
 583                 done("died");
 584         }
 585 }
 586
 587 void
 588 mondead(struct monst *mtmp)
 589 {
 590         relobj(mtmp,1);
 591         unpmon(mtmp);
 592         relmon(mtmp);
 593         unstuck(mtmp);
 594         if(mtmp->isshk) shkdead(mtmp);
 595         if(mtmp->isgd) gddead();
 596 #ifndef NOWORM
 597         if(mtmp->wormno) wormdead(mtmp);
 598 #endif /* NOWORM */
 599         monfree(mtmp);
 600 }
 601
 602 /* called when monster is moved to larger structure */
 603 void
 604 replmon(struct monst *mtmp, struct monst *mtmp2)
 605 {
 606         relmon(mtmp);
 607         monfree(mtmp);
 608         mtmp2->nmon = fmon;
 609         fmon = mtmp2;
 610         if(u.ustuck == mtmp) u.ustuck = mtmp2;
 611         if(mtmp2->isshk) replshk(mtmp,mtmp2);
 612         if(mtmp2->isgd) replgd(mtmp,mtmp2);
 613 }
 614
 615 void
 616 relmon(struct monst *mon)
 617 {
 618         struct monst *mtmp;
 619
 620         if(mon == fmon) fmon = fmon->nmon;
 621         else {
 622                 for(mtmp = fmon; mtmp->nmon != mon; mtmp = mtmp->nmon) ;
 623                 mtmp->nmon = mon->nmon;
 624         }
 625 }
 626
 627 /* we do not free monsters immediately, in order to have their name
 628    available shortly after their demise */
 629 struct monst *fdmon;    /* chain of dead monsters, need not to be saved */
 630
 631 void
 632 monfree(struct monst *mtmp)
 633 {
 634         mtmp->nmon = fdmon;
 635         fdmon = mtmp;
 636 }
 637
 638 static void
 639 dmonsfree(void)
 640 {
 641 struct monst *mtmp;
 642         while((mtmp = fdmon)){
 643                 fdmon = mtmp->nmon;
 644                 free((char *) mtmp);
 645         }
 646 }
 647
 648 void
 649 unstuck(struct monst *mtmp)
 650 {
 651         if(u.ustuck == mtmp) {
 652                 if(u.uswallow){
 653                         u.ux = mtmp->mx;
 654                         u.uy = mtmp->my;
 655                         u.uswallow = 0;
 656                         setsee();
 657                         docrt();
 658                 }
 659                 u.ustuck = 0;
 660         }
 661 }
 662
 663 void
 664 killed(struct monst *mtmp)
 665 {
 666 #ifdef lint
 667 #define NEW_SCORING
 668         int tmp2;
 669 #endif /* lint */
 670         int tmp,nk,x,y;
 671         struct permonst *mdat;
 672
 673         if(mtmp->cham) mtmp->data = PM_CHAMELEON;
 674         mdat = mtmp->data;
 675         if(Blind) pline("You destroy it!");
 676         else {
 677                 pline("You destroy %s!",
 678                         mtmp->mtame ? amonnam(mtmp, "poor") : monnam(mtmp));
 679         }
 680         if(u.umconf) {
 681                 if(!Blind) pline("Your hands stop glowing blue.");
 682                 u.umconf = 0;
 683         }
 684
 685         /* count killed monsters */
 686 #define MAXMONNO        100
 687         nk = 1;               /* in case we cannot find it in mons */
 688         tmp = mdat - mons;    /* index in mons array (if not 'd', '@', ...) */
 689         if(tmp >= 0 && tmp < CMNUM+2) {
 690             u.nr_killed[tmp]++;
 691             if((nk = u.nr_killed[tmp]) > MAXMONNO &&
 692                 !index(fut_geno, mdat->mlet))
 693                     charcat(fut_geno,  mdat->mlet);
 694         }
 695
 696         /* punish bad behaviour */
 697         if(mdat->mlet == '@') Telepat = 0, u.uluck -= 2;
 698         if(mtmp->mpeaceful || mtmp->mtame) u.uluck--;
 699         if(mdat->mlet == 'u') u.uluck -= 5;
 700         if((int)u.uluck < LUCKMIN) u.uluck = LUCKMIN;
 701
 702         /* give experience points */
 703         tmp = 1 + mdat->mlevel * mdat->mlevel;
 704         if(mdat->ac < 3) tmp += 2*(7 - mdat->ac);
 705         if(index("AcsSDXaeRTVWU&In:P", mdat->mlet))
 706                 tmp += 2*mdat->mlevel;
 707         if(index("DeV&P",mdat->mlet)) tmp += (7*mdat->mlevel);
 708         if(mdat->mlevel > 6) tmp += 50;
 709         if(mdat->mlet == ';') tmp += 1000;
 710
 711 #ifdef NEW_SCORING
 712         /* ------- recent addition: make nr of points decrease
 713                    when this is not the first of this kind */
 714         { int ul = u.ulevel;
 715           int ml = mdat->mlevel;
 716
 717         if(ul < 14)    /* points are given based on present and future level */
 718             for(tmp2 = 0; !tmp2 || ul + tmp2 <= ml; tmp2++)
 719                 if(u.uexp + 1 + (tmp + ((tmp2 <= 0) ? 0 : 4<<(tmp2-1)))/nk
 720                     >= 10*pow((unsigned)(ul-1)))
 721                         if(++ul == 14) break;
 722
 723         tmp2 = ml - ul -1;
 724         tmp = (tmp + ((tmp2 < 0) ? 0 : 4<<tmp2))/nk;
 725         if(!tmp) tmp = 1;
 726         }
 727         /* note: ul is not necessarily the future value of u.ulevel */
 728         /* ------- end of recent valuation change ------- */
 729 #endif /* NEW_SCORING */
 730
 731         more_experienced(tmp,0);
 732         flags.botl = 1;
 733         while(u.ulevel < 14 && u.uexp >= newuexp()){
 734                 pline("Welcome to experience level %u.", ++u.ulevel);
 735                 tmp = rnd(10);
 736                 if(tmp < 3) tmp = rnd(10);
 737                 u.uhpmax += tmp;
 738                 u.uhp += tmp;
 739                 flags.botl = 1;
 740         }
 741
 742         /* dispose of monster and make cadaver */
 743         x = mtmp->mx;   y = mtmp->my;
 744         mondead(mtmp);
 745         tmp = mdat->mlet;
 746         if(tmp == 'm') { /* he killed a minotaur, give him a wand of digging */
 747                         /* note: the dead minotaur will be on top of it! */
 748                 mksobj_at(WAN_DIGGING, x, y);
 749                 /* if(cansee(x,y)) atl(x,y,fobj->olet); */
 750                 stackobj(fobj);
 751         } else
 752 #ifndef NOWORM
 753         if(tmp == 'w') {
 754                 mksobj_at(WORM_TOOTH, x, y);
 755                 stackobj(fobj);
 756         } else
 757 #endif /* NOWORM */
 758         if(!letter(tmp) || (!index("mw", tmp) && !rn2(3))) tmp = 0;
 759
 760         if(ACCESSIBLE(levl[x][y].typ))  /* might be mimic in wall or dead eel*/
 761             if(x != u.ux || y != u.uy)  /* might be here after swallowed */
 762                 if(index("NTVm&",mdat->mlet) || rn2(5)) {
 763                 struct obj *obj2 = mkobj_at(tmp,x,y);
 764                 if(cansee(x,y))
 765                         atl(x,y,obj2->olet);
 766                 stackobj(obj2);
 767         }
 768 }
 769
 770 void
 771 kludge(const char *str, const char *arg)
 772 {
 773         if(Blind) {
 774                 if(*str == '%') pline(str,"It");
 775                 else pline(str,"it");
 776         } else pline(str,arg);
 777 }
 778
 779 void
 780 rescham(void)   /* force all chameleons to become normal */
 781 {
 782         struct monst *mtmp;
 783
 784         for(mtmp = fmon; mtmp; mtmp = mtmp->nmon)
 785                 if(mtmp->cham) {
 786                         mtmp->cham = 0;
 787                         newcham(mtmp, PM_CHAMELEON);
 788                 }
 789 }
 790
 791 /* make a chameleon look like a new monster */
 792 /* returns 1 if the monster actually changed */
 793 bool
 794 newcham(struct monst *mtmp, struct permonst *mdat)
 795 {
 796         int mhp, hpn, hpd;
 797
 798         if(mdat == mtmp->data) return(0);       /* still the same monster */
 799 #ifndef NOWORM
 800         if(mtmp->wormno) wormdead(mtmp);        /* throw tail away */
 801 #endif /* NOWORM */
 802         if (u.ustuck == mtmp) {
 803                 if (u.uswallow) {
 804                         u.uswallow = 0;
 805                         u.uswldtim = 0;
 806                         mnexto (mtmp);
 807                         docrt ();
 808                         prme ();
 809                 }
 810                 u.ustuck = 0;
 811         }
 812         hpn = mtmp->mhp;
 813         hpd = (mtmp->data->mlevel)*8;
 814         if(!hpd) hpd = 4;
 815         mtmp->data = mdat;
 816         mhp = (mdat->mlevel)*8;
 817         /* new hp: same fraction of max as before */
 818         mtmp->mhp = 2 + (hpn*mhp)/hpd;
 819         hpn = mtmp->mhpmax;
 820         mtmp->mhpmax = 2 + (hpn*mhp)/hpd;
 821         mtmp->minvis = (mdat->mlet == 'I') ? 1 : 0;
 822 #ifndef NOWORM
 823         if(mdat->mlet == 'w' && getwn(mtmp)) initworm(mtmp);
 824                         /* perhaps we should clear mtmp->mtame here? */
 825 #endif /* NOWORM */
 826         unpmon(mtmp);   /* necessary for 'I' and to force pmon */
 827         pmon(mtmp);
 828         return(1);
 829 }
 830
 831 /* Make monster mtmp next to you (if possible) */
 832 void
 833 mnexto(struct monst *mtmp)
 834 {
 835         coord mm;
 836         mm = enexto(u.ux, u.uy);
 837         mtmp->mx = mm.x;
 838         mtmp->my = mm.y;
 839         pmon(mtmp);
 840 }
 841
 842 static bool
 843 ishuman(struct monst *mtmp)
 844 {
 845         return(mtmp->data->mlet == '@');
 846 }
 847
 848 void
 849 setmangry(struct monst *mtmp)
 850 {
 851         if(!mtmp->mpeaceful) return;
 852         if(mtmp->mtame) return;
 853         mtmp->mpeaceful = 0;
 854         if(ishuman(mtmp)) pline("%s gets angry!", Monnam(mtmp));
 855 }
 856
 857 /* not one hundred procent correct: now a snake may hide under an
 858    invisible object */
 859 bool
 860 canseemon(struct monst *mtmp)
 861 {
 862         return((!mtmp->minvis || See_invisible)
 863                 && (!mtmp->mhide || !o_at(mtmp->mx,mtmp->my))
 864                 && cansee(mtmp->mx, mtmp->my));
 865 }