1 /* $NetBSD: hack.mon.c,v 1.8 2008/01/28 06:55:41 dholland Exp $ */ 2 3 /* 4 * Copyright (c) 1985, Stichting Centrum voor Wiskunde en Informatica, 5 * Amsterdam 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions are 10 * met: 11 * 12 * - Redistributions of source code must retain the above copyright notice, 13 * this list of conditions and the following disclaimer. 14 * 15 * - Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * - Neither the name of the Stichting Centrum voor Wiskunde en 20 * Informatica, nor the names of its contributors may be used to endorse or 21 * promote products derived from this software without specific prior 22 * written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS 25 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 26 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A 27 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER 28 * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 29 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 30 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 31 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 32 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 33 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 34 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 35 */ 36 37 /* 38 * Copyright (c) 1982 Jay Fenlason <hack@gnu.org> 39 * All rights reserved. 40 * 41 * Redistribution and use in source and binary forms, with or without 42 * modification, are permitted provided that the following conditions 43 * are met: 44 * 1. Redistributions of source code must retain the above copyright 45 * notice, this list of conditions and the following disclaimer. 46 * 2. Redistributions in binary form must reproduce the above copyright 47 * notice, this list of conditions and the following disclaimer in the 48 * documentation and/or other materials provided with the distribution. 49 * 3. The name of the author may not be used to endorse or promote products 50 * derived from this software without specific prior written permission. 51 * 52 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, 53 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY 54 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL 55 * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 56 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 57 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 58 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 59 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 60 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 61 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 62 */ 63 64 #include <sys/cdefs.h> 65 #ifndef lint 66 __RCSID("$NetBSD: hack.mon.c,v 1.8 2008/01/28 06:55:41 dholland Exp $"); 67 #endif /* not lint */ 68 69 #include <stdlib.h> 70 #include "hack.h" 71 #include "extern.h" 72 #include "hack.mfndpos.h" 73 74 #ifndef NULL 75 #define NULL (char *) 0 76 #endif 77 78 int warnlevel; /* used by movemon and dochugw */ 79 long lastwarntime; 80 int lastwarnlev; 81 const char *const warnings[] = { 82 "white", "pink", "red", "ruby", "purple", "black" 83 }; 84 85 void 86 movemon() 87 { 88 struct monst *mtmp; 89 int fr; 90 91 warnlevel = 0; 92 93 while (1) { 94 /* find a monster that we haven't treated yet */ 95 /* 96 * note that mtmp or mtmp->nmon might get killed while mtmp 97 * moves, so we cannot just walk down the chain (even new 98 * monsters might get created!) 99 */ 100 for (mtmp = fmon; mtmp; mtmp = mtmp->nmon) 101 if (mtmp->mlstmv < moves) 102 goto next_mon; 103 /* treated all monsters */ 104 break; 105 106 next_mon: 107 mtmp->mlstmv = moves; 108 109 /* most monsters drown in pools */ 110 { 111 boolean inpool, iseel; 112 113 inpool = (levl[mtmp->mx][mtmp->my].typ == POOL); 114 iseel = (mtmp->data->mlet == ';'); 115 if (inpool && !iseel) { 116 if (cansee(mtmp->mx, mtmp->my)) 117 pline("%s drowns.", Monnam(mtmp)); 118 mondead(mtmp); 119 continue; 120 } 121 /* but eels have a difficult time outside */ 122 if (iseel && !inpool) { 123 if (mtmp->mhp > 1) 124 mtmp->mhp--; 125 mtmp->mflee = 1; 126 mtmp->mfleetim += 2; 127 } 128 } 129 if (mtmp->mblinded && !--mtmp->mblinded) 130 mtmp->mcansee = 1; 131 if (mtmp->mfleetim && !--mtmp->mfleetim) 132 mtmp->mflee = 0; 133 if (mtmp->mimic) 134 continue; 135 if (mtmp->mspeed != MSLOW || !(moves % 2)) { 136 /* continue if the monster died fighting */ 137 fr = -1; 138 if (Conflict && cansee(mtmp->mx, mtmp->my) 139 && (fr = fightm(mtmp)) == 2) 140 continue; 141 if (fr < 0 && dochugw(mtmp)) 142 continue; 143 } 144 if (mtmp->mspeed == MFAST && dochugw(mtmp)) 145 continue; 146 } 147 148 warnlevel -= u.ulevel; 149 if (warnlevel >= SIZE(warnings)) 150 warnlevel = SIZE(warnings) - 1; 151 if (warnlevel >= 0) 152 if (warnlevel > lastwarnlev || moves > lastwarntime + 5) { 153 const char *rr; 154 switch (Warning & (LEFT_RING | RIGHT_RING)) { 155 case LEFT_RING: 156 rr = "Your left ring glows"; 157 break; 158 case RIGHT_RING: 159 rr = "Your right ring glows"; 160 break; 161 case LEFT_RING | RIGHT_RING: 162 rr = "Both your rings glow"; 163 break; 164 default: 165 rr = "Your fingertips glow"; 166 break; 167 } 168 pline("%s %s!", rr, warnings[warnlevel]); 169 lastwarntime = moves; 170 lastwarnlev = warnlevel; 171 } 172 dmonsfree(); /* remove all dead monsters */ 173 } 174 175 void 176 justswld(mtmp, name) 177 struct monst *mtmp; 178 const char *name; 179 { 180 181 mtmp->mx = u.ux; 182 mtmp->my = u.uy; 183 u.ustuck = mtmp; 184 pmon(mtmp); 185 kludge("%s swallows you!", name); 186 more(); 187 seeoff(1); 188 u.uswallow = 1; 189 u.uswldtim = 0; 190 swallowed(); 191 } 192 193 void 194 youswld(mtmp, dam, die, name) 195 struct monst *mtmp; 196 int dam, die; 197 const char *name; 198 { 199 if (mtmp != u.ustuck) 200 return; 201 kludge("%s digests you!", name); 202 u.uhp -= dam; 203 if (u.uswldtim++ >= die) { /* a3 */ 204 pline("It totally digests you!"); 205 u.uhp = -1; 206 } 207 if (u.uhp < 1) 208 done_in_by(mtmp); 209 #if 0 210 flags.botlx = 1; /* should we show status line ? */ 211 #endif 212 } 213 214 int 215 dochugw(mtmp) 216 struct monst *mtmp; 217 { 218 int x = mtmp->mx; 219 int y = mtmp->my; 220 int dead = dochug(mtmp); 221 int dd; 222 223 if (!dead) /* monster still alive */ 224 if (Warning) 225 if (!mtmp->mpeaceful) 226 if (mtmp->data->mlevel > warnlevel) 227 if ((dd = dist(mtmp->mx, mtmp->my)) < dist(x, y)) 228 if (dd < 100) 229 if (!canseemon(mtmp)) 230 warnlevel = mtmp->data->mlevel; 231 return (dead); 232 } 233 234 /* returns 1 if monster died moving, 0 otherwise */ 235 int 236 dochug(mtmp) 237 struct monst *mtmp; 238 { 239 const struct permonst *mdat; 240 int tmp = 0, nearby, scared; 241 242 if (mtmp->cham && !rn2(6)) 243 (void) newcham(mtmp, &mons[dlevel + 14 + rn2(CMNUM - 14 - dlevel)]); 244 mdat = mtmp->data; 245 if (mdat->mlevel < 0) 246 panic("bad monster %c (%d)", mdat->mlet, mdat->mlevel); 247 248 /* regenerate monsters */ 249 if ((!(moves % 20) || strchr(MREGEN, mdat->mlet)) && 250 mtmp->mhp < mtmp->mhpmax) 251 mtmp->mhp++; 252 253 if (mtmp->mfroz) 254 return (0); /* frozen monsters don't do anything */ 255 256 if (mtmp->msleep) { 257 /* wake up, or get out of here. */ 258 /* ettins are hard to surprise */ 259 /* Nymphs and Leprechauns do not easily wake up */ 260 if (cansee(mtmp->mx, mtmp->my) && 261 (!Stealth || (mdat->mlet == 'e' && rn2(10))) && 262 (!strchr("NL", mdat->mlet) || !rn2(50)) && 263 (Aggravate_monster || strchr("d1", mdat->mlet) 264 || (!rn2(7) && !mtmp->mimic))) 265 mtmp->msleep = 0; 266 else 267 return (0); 268 } 269 /* not frozen or sleeping: wipe out texts written in the dust */ 270 wipe_engr_at(mtmp->mx, mtmp->my, 1); 271 272 /* confused monsters get unconfused with small probability */ 273 if (mtmp->mconf && !rn2(50)) 274 mtmp->mconf = 0; 275 276 /* some monsters teleport */ 277 if (mtmp->mflee && strchr("tNL", mdat->mlet) && !rn2(40)) { 278 rloc(mtmp); 279 return (0); 280 } 281 if (mdat->mmove < rnd(6)) 282 return (0); 283 284 /* fleeing monsters might regain courage */ 285 if (mtmp->mflee && !mtmp->mfleetim 286 && mtmp->mhp == mtmp->mhpmax && !rn2(25)) 287 mtmp->mflee = 0; 288 289 nearby = (dist(mtmp->mx, mtmp->my) < 3); 290 scared = (nearby && (sengr_at("Elbereth", u.ux, u.uy) || 291 sobj_at(SCR_SCARE_MONSTER, u.ux, u.uy))); 292 if (scared && !mtmp->mflee) { 293 mtmp->mflee = 1; 294 mtmp->mfleetim = (rn2(7) ? rnd(10) : rnd(100)); 295 } 296 if (!nearby || 297 mtmp->mflee || 298 mtmp->mconf || 299 (mtmp->minvis && !rn2(3)) || 300 (strchr("BIuy", mdat->mlet) && !rn2(4)) || 301 (mdat->mlet == 'L' && !u.ugold && (mtmp->mgold || rn2(2))) || 302 (!mtmp->mcansee && !rn2(4)) || 303 mtmp->mpeaceful 304 ) { 305 tmp = m_move(mtmp, 0); /* 2: monster died moving */ 306 if (tmp == 2 || (tmp && mdat->mmove <= 12)) 307 return (tmp == 2); 308 } 309 if (!strchr("Ea", mdat->mlet) && nearby && 310 !mtmp->mpeaceful && u.uhp > 0 && !scared) { 311 if (mhitu(mtmp)) 312 return (1); /* monster died (e.g. 'y' or 'F') */ 313 } 314 /* extra movement for fast monsters */ 315 if (mdat->mmove - 12 > rnd(12)) 316 tmp = m_move(mtmp, 1); 317 return (tmp == 2); 318 } 319 320 int 321 m_move(struct monst *mtmp, int after) 322 { 323 struct monst *mtmp2; 324 int nx, ny, omx, omy, appr, nearer, cnt, i, j; 325 xchar gx, gy, nix, niy, chcnt; 326 schar chi; 327 boolean likegold = 0, likegems = 0, likeobjs = 0; 328 char msym = mtmp->data->mlet; 329 schar mmoved = 0; /* not strictly nec.: chi >= 0 will 330 * do */ 331 coord poss[9]; 332 int info[9]; 333 334 if (mtmp->mfroz || mtmp->msleep) 335 return (0); 336 if (mtmp->mtrapped) { 337 i = mintrap(mtmp); 338 if (i == 2) 339 return (2); /* he died */ 340 if (i == 1) 341 return (0); /* still in trap, so didnt move */ 342 } 343 if (mtmp->mhide && o_at(mtmp->mx, mtmp->my) && rn2(10)) 344 return (0); /* do not leave hiding place */ 345 346 #ifndef NOWORM 347 if (mtmp->wormno) 348 goto not_special; 349 #endif /* NOWORM */ 350 351 /* my dog gets a special treatment */ 352 if (mtmp->mtame) { 353 return (dog_move(mtmp, after)); 354 } 355 /* likewise for shopkeeper */ 356 if (mtmp->isshk) { 357 mmoved = shk_move(mtmp); 358 if (mmoved >= 0) 359 goto postmov; 360 mmoved = 0; /* follow player outside shop */ 361 } 362 /* and for the guard */ 363 if (mtmp->isgd) { 364 mmoved = gd_move(); 365 goto postmov; 366 } 367 /* 368 * teleport if that lies in our nature ('t') or when badly wounded 369 * ('1') 370 */ 371 if ((msym == 't' && !rn2(5)) 372 || (msym == '1' && (mtmp->mhp < 7 || (!xdnstair && !rn2(5)) 373 || levl[u.ux][u.uy].typ == STAIRS))) { 374 if (mtmp->mhp < 7 || (msym == 't' && rn2(2))) 375 rloc(mtmp); 376 else 377 mnexto(mtmp); 378 mmoved = 1; 379 goto postmov; 380 } 381 /* spit fire ('D') or use a wand ('1') when appropriate */ 382 if (strchr("D1", msym)) 383 inrange(mtmp); 384 385 if (msym == 'U' && !mtmp->mcan && canseemon(mtmp) && 386 mtmp->mcansee && rn2(5)) { 387 if (!Confusion) 388 pline("%s's gaze has confused you!", Monnam(mtmp)); 389 else 390 pline("You are getting more and more confused."); 391 if (rn2(3)) 392 mtmp->mcan = 1; 393 Confusion += d(3, 4); /* timeout */ 394 } 395 not_special: 396 if (!mtmp->mflee && u.uswallow && u.ustuck != mtmp) 397 return (1); 398 appr = 1; 399 if (mtmp->mflee) 400 appr = -1; 401 if (mtmp->mconf || Invis || !mtmp->mcansee || 402 (strchr("BIy", msym) && !rn2(3))) 403 appr = 0; 404 omx = mtmp->mx; 405 omy = mtmp->my; 406 gx = u.ux; 407 gy = u.uy; 408 if (msym == 'L' && appr == 1 && mtmp->mgold > u.ugold) 409 appr = -1; 410 411 /* 412 * random criterion for 'smell' or track finding ability should use 413 * mtmp->msmell or sth 414 */ 415 if (msym == '@' || 416 ('a' <= msym && msym <= 'z')) { 417 coord *cp; 418 schar mroom; 419 mroom = inroom(omx, omy); 420 if (mroom < 0 || mroom != inroom(u.ux, u.uy)) { 421 cp = gettrack(omx, omy); 422 if (cp) { 423 gx = cp->x; 424 gy = cp->y; 425 } 426 } 427 } 428 /* look for gold or jewels nearby */ 429 likegold = (strchr("LOD", msym) != NULL); 430 likegems = (strchr("ODu", msym) != NULL); 431 likeobjs = mtmp->mhide; 432 #define SRCHRADIUS 25 433 { 434 xchar mind = SRCHRADIUS; /* not too far away */ 435 int dd; 436 if (likegold) { 437 struct gold *gold; 438 for (gold = fgold; gold; gold = gold->ngold) 439 if ((dd = DIST(omx, omy, gold->gx, gold->gy)) < mind) { 440 mind = dd; 441 gx = gold->gx; 442 gy = gold->gy; 443 } 444 } 445 if (likegems || likeobjs) { 446 struct obj *otmp; 447 for (otmp = fobj; otmp; otmp = otmp->nobj) 448 if (likeobjs || otmp->olet == GEM_SYM) 449 if (msym != 'u' || 450 objects[otmp->otyp].g_val != 0) 451 if ((dd = DIST(omx, omy, otmp->ox, otmp->oy)) < mind) { 452 mind = dd; 453 gx = otmp->ox; 454 gy = otmp->oy; 455 } 456 } 457 if (mind < SRCHRADIUS && appr == -1) { 458 if (dist(omx, omy) < 10) { 459 gx = u.ux; 460 gy = u.uy; 461 } else 462 appr = 1; 463 } 464 } 465 nix = omx; 466 niy = omy; 467 cnt = mfndpos(mtmp, poss, info, 468 msym == 'u' ? NOTONL : 469 (msym == '@' || msym == '1') ? (ALLOW_SSM | ALLOW_TRAPS) : 470 strchr(UNDEAD, msym) ? NOGARLIC : ALLOW_TRAPS); 471 /* ALLOW_ROCK for some monsters ? */ 472 chcnt = 0; 473 chi = -1; 474 for (i = 0; i < cnt; i++) { 475 nx = poss[i].x; 476 ny = poss[i].y; 477 for (j = 0; j < MTSZ && j < cnt - 1; j++) 478 if (nx == mtmp->mtrack[j].x && ny == mtmp->mtrack[j].y) 479 if (rn2(4 * (cnt - j))) 480 goto nxti; 481 #ifdef STUPID 482 /* some stupid compilers think that this is too complicated */ 483 { 484 int d1 = DIST(nx, ny, gx, gy); 485 int d2 = DIST(nix, niy, gx, gy); 486 nearer = (d1 < d2); 487 } 488 #else 489 nearer = (DIST(nx, ny, gx, gy) < DIST(nix, niy, gx, gy)); 490 #endif /* STUPID */ 491 if ((appr == 1 && nearer) || (appr == -1 && !nearer) || 492 !mmoved || 493 (!appr && !rn2(++chcnt))) { 494 nix = nx; 495 niy = ny; 496 chi = i; 497 mmoved = 1; 498 } 499 nxti: ; 500 } 501 if (mmoved) { 502 if (info[chi] & ALLOW_M) { 503 mtmp2 = m_at(nix, niy); 504 if (mtmp2 == NULL) 505 panic("error in m_move"); 506 if (hitmm(mtmp, mtmp2) == 1 && rn2(4) && 507 hitmm(mtmp2, mtmp) == 2) 508 return (2); 509 return (0); 510 } 511 if (info[chi] & ALLOW_U) { 512 (void) hitu(mtmp, d(mtmp->data->damn, mtmp->data->damd) + 1); 513 return (0); 514 } 515 mtmp->mx = nix; 516 mtmp->my = niy; 517 for (j = MTSZ - 1; j > 0; j--) 518 mtmp->mtrack[j] = mtmp->mtrack[j - 1]; 519 mtmp->mtrack[0].x = omx; 520 mtmp->mtrack[0].y = omy; 521 #ifndef NOWORM 522 if (mtmp->wormno) 523 worm_move(mtmp); 524 #endif /* NOWORM */ 525 } else { 526 if (msym == 'u' && rn2(2)) { 527 rloc(mtmp); 528 return (0); 529 } 530 #ifndef NOWORM 531 if (mtmp->wormno) 532 worm_nomove(mtmp); 533 #endif /* NOWORM */ 534 } 535 postmov: 536 if (mmoved == 1) { 537 if (mintrap(mtmp) == 2) /* he died */ 538 return (2); 539 if (likegold) 540 mpickgold(mtmp); 541 if (likegems) 542 mpickgems(mtmp); 543 if (mtmp->mhide) 544 mtmp->mundetected = 1; 545 } 546 pmon(mtmp); 547 return (mmoved); 548 } 549 550 void 551 mpickgold(mtmp) 552 struct monst *mtmp; 553 { 554 struct gold *gold; 555 while ((gold = g_at(mtmp->mx, mtmp->my)) != NULL) { 556 mtmp->mgold += gold->amount; 557 freegold(gold); 558 if (levl[mtmp->mx][mtmp->my].scrsym == '$') 559 newsym(mtmp->mx, mtmp->my); 560 } 561 } 562 563 void 564 mpickgems(mtmp) 565 struct monst *mtmp; 566 { 567 struct obj *otmp; 568 for (otmp = fobj; otmp; otmp = otmp->nobj) 569 if (otmp->olet == GEM_SYM) 570 if (otmp->ox == mtmp->mx && otmp->oy == mtmp->my) 571 if (mtmp->data->mlet != 'u' || objects[otmp->otyp].g_val != 0) { 572 freeobj(otmp); 573 mpickobj(mtmp, otmp); 574 if (levl[mtmp->mx][mtmp->my].scrsym == GEM_SYM) 575 newsym(mtmp->mx, mtmp->my); /* %% */ 576 return; /* pick only one object */ 577 } 578 } 579 580 /* return number of acceptable neighbour positions */ 581 int 582 mfndpos(mon, poss, info, flag) 583 struct monst *mon; 584 coord poss[9]; 585 int info[9], flag; 586 { 587 int x, y, nx, ny, cnt = 0, ntyp; 588 struct monst *mtmp; 589 int nowtyp; 590 boolean pool; 591 592 x = mon->mx; 593 y = mon->my; 594 nowtyp = levl[x][y].typ; 595 596 pool = (mon->data->mlet == ';'); 597 nexttry: /* eels prefer the water, but if there is no 598 * water nearby, they will crawl over land */ 599 if (mon->mconf) { 600 flag |= ALLOW_ALL; 601 flag &= ~NOTONL; 602 } 603 for (nx = x - 1; nx <= x + 1; nx++) 604 for (ny = y - 1; ny <= y + 1; ny++) 605 if (nx != x || ny != y) 606 if (isok(nx, ny)) 607 if (!IS_ROCK(ntyp = levl[nx][ny].typ)) 608 if (!(nx != x && ny != y && (nowtyp == DOOR || ntyp == DOOR))) 609 if ((ntyp == POOL) == pool) { 610 info[cnt] = 0; 611 if (nx == u.ux && ny == u.uy) { 612 if (!(flag & ALLOW_U)) 613 continue; 614 info[cnt] = ALLOW_U; 615 } else if ((mtmp = m_at(nx, ny)) != NULL) { 616 if (!(flag & ALLOW_M)) 617 continue; 618 info[cnt] = ALLOW_M; 619 if (mtmp->mtame) { 620 if (!(flag & ALLOW_TM)) 621 continue; 622 info[cnt] |= ALLOW_TM; 623 } 624 } 625 if (sobj_at(CLOVE_OF_GARLIC, nx, ny)) { 626 if (flag & NOGARLIC) 627 continue; 628 info[cnt] |= NOGARLIC; 629 } 630 if (sobj_at(SCR_SCARE_MONSTER, nx, ny) || 631 (!mon->mpeaceful && sengr_at("Elbereth", nx, ny))) { 632 if (!(flag & ALLOW_SSM)) 633 continue; 634 info[cnt] |= ALLOW_SSM; 635 } 636 if (sobj_at(ENORMOUS_ROCK, nx, ny)) { 637 if (!(flag & ALLOW_ROCK)) 638 continue; 639 info[cnt] |= ALLOW_ROCK; 640 } 641 if (!Invis && online(nx, ny)) { 642 if (flag & NOTONL) 643 continue; 644 info[cnt] |= NOTONL; 645 } 646 /* 647 * we cannot 648 * avoid 649 * traps of 650 * an unknown 651 * kind 652 */ 653 { 654 struct trap *ttmp = t_at(nx, ny); 655 int tt; 656 if (ttmp) { 657 tt = 1 << ttmp->ttyp; 658 if (mon->mtrapseen & tt) { 659 if (!(flag & tt)) 660 continue; 661 info[cnt] |= tt; 662 } 663 } 664 } 665 poss[cnt].x = nx; 666 poss[cnt].y = ny; 667 cnt++; 668 } 669 if (!cnt && pool && nowtyp != POOL) { 670 pool = FALSE; 671 goto nexttry; 672 } 673 return (cnt); 674 } 675 676 int 677 dist(x, y) 678 int x, y; 679 { 680 return ((x - u.ux) * (x - u.ux) + (y - u.uy) * (y - u.uy)); 681 } 682 683 void 684 poisoned(string, pname) 685 const char *string, *pname; 686 { 687 int i; 688 689 if (Blind) 690 pline("It was poisoned."); 691 else 692 pline("The %s was poisoned!", string); 693 if (Poison_resistance) { 694 pline("The poison doesn't seem to affect you."); 695 return; 696 } 697 i = rn2(10); 698 if (i == 0) { 699 u.uhp = -1; 700 pline("I am afraid the poison was deadly ..."); 701 } else if (i <= 5) { 702 losestr(rn1(3, 3)); 703 } else { 704 losehp(rn1(10, 6), pname); 705 } 706 if (u.uhp < 1) { 707 killer = pname; 708 done("died"); 709 } 710 } 711 712 void 713 mondead(mtmp) 714 struct monst *mtmp; 715 { 716 relobj(mtmp, 1); 717 unpmon(mtmp); 718 relmon(mtmp); 719 unstuck(mtmp); 720 if (mtmp->isshk) 721 shkdead(mtmp); 722 if (mtmp->isgd) 723 gddead(); 724 #ifndef NOWORM 725 if (mtmp->wormno) 726 wormdead(mtmp); 727 #endif /* NOWORM */ 728 monfree(mtmp); 729 } 730 731 /* called when monster is moved to larger structure */ 732 void 733 replmon(mtmp, mtmp2) 734 struct monst *mtmp, *mtmp2; 735 { 736 relmon(mtmp); 737 monfree(mtmp); 738 mtmp2->nmon = fmon; 739 fmon = mtmp2; 740 if (u.ustuck == mtmp) 741 u.ustuck = mtmp2; 742 if (mtmp2->isshk) 743 replshk(mtmp, mtmp2); 744 if (mtmp2->isgd) 745 replgd(mtmp, mtmp2); 746 } 747 748 void 749 relmon(mon) 750 struct monst *mon; 751 { 752 struct monst *mtmp; 753 754 if (mon == fmon) 755 fmon = fmon->nmon; 756 else { 757 for (mtmp = fmon; mtmp->nmon != mon; mtmp = mtmp->nmon); 758 mtmp->nmon = mon->nmon; 759 } 760 } 761 762 /* 763 * we do not free monsters immediately, in order to have their name available 764 * shortly after their demise 765 */ 766 struct monst *fdmon; /* chain of dead monsters, need not to be 767 * saved */ 768 769 void 770 monfree(mtmp) 771 struct monst *mtmp; 772 { 773 mtmp->nmon = fdmon; 774 fdmon = mtmp; 775 } 776 777 void 778 dmonsfree() 779 { 780 struct monst *mtmp; 781 while ((mtmp = fdmon) != NULL) { 782 fdmon = mtmp->nmon; 783 free((char *) mtmp); 784 } 785 } 786 787 void 788 unstuck(mtmp) 789 struct monst *mtmp; 790 { 791 if (u.ustuck == mtmp) { 792 if (u.uswallow) { 793 u.ux = mtmp->mx; 794 u.uy = mtmp->my; 795 u.uswallow = 0; 796 setsee(); 797 docrt(); 798 } 799 u.ustuck = 0; 800 } 801 } 802 803 void 804 killed(mtmp) 805 struct monst *mtmp; 806 { 807 #ifdef lint 808 #define NEW_SCORING 809 #endif /* lint */ 810 int tmp, nk, x, y; 811 const struct permonst *mdat; 812 813 if (mtmp->cham) 814 mtmp->data = PM_CHAMELEON; 815 mdat = mtmp->data; 816 if (Blind) 817 pline("You destroy it!"); 818 else { 819 pline("You destroy %s!", 820 mtmp->mtame ? amonnam(mtmp, "poor") : monnam(mtmp)); 821 } 822 if (u.umconf) { 823 if (!Blind) 824 pline("Your hands stop glowing blue."); 825 u.umconf = 0; 826 } 827 /* count killed monsters */ 828 #define MAXMONNO 100 829 nk = 1; /* in case we cannot find it in mons */ 830 tmp = mdat - mons; /* strchr in mons array (if not 'd', '@', ...) */ 831 if (tmp >= 0 && tmp < CMNUM + 2) { 832 u.nr_killed[tmp]++; 833 if ((nk = u.nr_killed[tmp]) > MAXMONNO && 834 !strchr(fut_geno, mdat->mlet)) 835 charcat(fut_geno, mdat->mlet); 836 } 837 /* punish bad behaviour */ 838 if (mdat->mlet == '@') 839 Telepat = 0, u.uluck -= 2; 840 if (mtmp->mpeaceful || mtmp->mtame) 841 u.uluck--; 842 if (mdat->mlet == 'u') 843 u.uluck -= 5; 844 if ((int) u.uluck < LUCKMIN) 845 u.uluck = LUCKMIN; 846 847 /* give experience points */ 848 tmp = 1 + mdat->mlevel * mdat->mlevel; 849 if (mdat->ac < 3) 850 tmp += 2 * (7 - mdat->ac); 851 if (strchr("AcsSDXaeRTVWU&In:P", mdat->mlet)) 852 tmp += 2 * mdat->mlevel; 853 if (strchr("DeV&P", mdat->mlet)) 854 tmp += (7 * mdat->mlevel); 855 if (mdat->mlevel > 6) 856 tmp += 50; 857 if (mdat->mlet == ';') 858 tmp += 1000; 859 860 #ifdef NEW_SCORING 861 /* 862 * ------- recent addition: make nr of points decrease when this is 863 * not the first of this kind 864 */ 865 { 866 int ul = u.ulevel; 867 int ml = mdat->mlevel; 868 869 if (ul < 14) /* points are given based on present and 870 * future level */ 871 for (tmp2 = 0; !tmp2 || ul + tmp2 <= ml; tmp2++) 872 if (u.uexp + 1 + (tmp + ((tmp2 <= 0) ? 0 : 4 << (tmp2 - 1))) / nk 873 >= 10 * pow((unsigned) (ul - 1))) 874 if (++ul == 14) 875 break; 876 877 tmp2 = ml - ul - 1; 878 tmp = (tmp + ((tmp2 < 0) ? 0 : 4 << tmp2)) / nk; 879 if (!tmp) 880 tmp = 1; 881 } 882 /* note: ul is not necessarily the future value of u.ulevel */ 883 /* ------- end of recent valuation change ------- */ 884 #endif /* NEW_SCORING */ 885 886 more_experienced(tmp, 0); 887 flags.botl = 1; 888 while (u.ulevel < 14 && u.uexp >= newuexp()) { 889 pline("Welcome to experience level %u.", ++u.ulevel); 890 tmp = rnd(10); 891 if (tmp < 3) 892 tmp = rnd(10); 893 u.uhpmax += tmp; 894 u.uhp += tmp; 895 flags.botl = 1; 896 } 897 898 /* dispose of monster and make cadaver */ 899 x = mtmp->mx; 900 y = mtmp->my; 901 mondead(mtmp); 902 tmp = mdat->mlet; 903 if (tmp == 'm') { /* he killed a minotaur, give him a wand of 904 * digging */ 905 /* note: the dead minotaur will be on top of it! */ 906 mksobj_at(WAN_DIGGING, x, y); 907 /* if(cansee(x,y)) atl(x,y,fobj->olet); */ 908 stackobj(fobj); 909 } else 910 #ifndef NOWORM 911 if (tmp == 'w') { 912 mksobj_at(WORM_TOOTH, x, y); 913 stackobj(fobj); 914 } else 915 #endif /* NOWORM */ 916 if (!letter(tmp) || (!strchr("mw", tmp) && !rn2(3))) 917 tmp = 0; 918 919 if (ACCESSIBLE(levl[x][y].typ)) /* might be mimic in wall or dead eel */ 920 if (x != u.ux || y != u.uy) /* might be here after 921 * swallowed */ 922 if (strchr("NTVm&", mdat->mlet) || rn2(5)) { 923 struct obj *obj2 = mkobj_at(tmp, x, y); 924 if (cansee(x, y)) 925 atl(x, y, obj2->olet); 926 stackobj(obj2); 927 } 928 } 929 930 void 931 kludge(const char *str, const char *arg) 932 { 933 if (Blind) { 934 if (*str == '%') 935 pline(str, "It"); 936 else 937 pline(str, "it"); 938 } else 939 pline(str, arg); 940 } 941 942 void 943 rescham() 944 { /* force all chameleons to become normal */ 945 struct monst *mtmp; 946 947 for (mtmp = fmon; mtmp; mtmp = mtmp->nmon) 948 if (mtmp->cham) { 949 mtmp->cham = 0; 950 (void) newcham(mtmp, PM_CHAMELEON); 951 } 952 } 953 954 int 955 newcham(mtmp, mdat) /* make a chameleon look like a new monster */ 956 /* returns 1 if the monster actually changed */ 957 struct monst *mtmp; 958 const struct permonst *mdat; 959 { 960 int mhp, hpn, hpd; 961 962 if (mdat == mtmp->data) 963 return (0); /* still the same monster */ 964 #ifndef NOWORM 965 if (mtmp->wormno) 966 wormdead(mtmp); /* throw tail away */ 967 #endif /* NOWORM */ 968 if (u.ustuck == mtmp) { 969 if (u.uswallow) { 970 u.uswallow = 0; 971 u.uswldtim = 0; 972 mnexto(mtmp); 973 docrt(); 974 prme(); 975 } 976 u.ustuck = 0; 977 } 978 hpn = mtmp->mhp; 979 hpd = (mtmp->data->mlevel) * 8; 980 if (!hpd) 981 hpd = 4; 982 mtmp->data = mdat; 983 mhp = (mdat->mlevel) * 8; 984 /* new hp: same fraction of max as before */ 985 mtmp->mhp = 2 + (hpn * mhp) / hpd; 986 hpn = mtmp->mhpmax; 987 mtmp->mhpmax = 2 + (hpn * mhp) / hpd; 988 mtmp->minvis = (mdat->mlet == 'I') ? 1 : 0; 989 #ifndef NOWORM 990 if (mdat->mlet == 'w' && getwn(mtmp)) 991 initworm(mtmp); 992 /* perhaps we should clear mtmp->mtame here? */ 993 #endif /* NOWORM */ 994 unpmon(mtmp); /* necessary for 'I' and to force pmon */ 995 pmon(mtmp); 996 return (1); 997 } 998 999 void 1000 mnexto(mtmp) /* Make monster mtmp next to you (if 1001 * possible) */ 1002 struct monst *mtmp; 1003 { 1004 coord mm; 1005 mm = enexto(u.ux, u.uy); 1006 mtmp->mx = mm.x; 1007 mtmp->my = mm.y; 1008 pmon(mtmp); 1009 } 1010 1011 int 1012 ishuman(mtmp) 1013 struct monst *mtmp; 1014 { 1015 return (mtmp->data->mlet == '@'); 1016 } 1017 1018 void 1019 setmangry(mtmp) 1020 struct monst *mtmp; 1021 { 1022 if (!mtmp->mpeaceful) 1023 return; 1024 if (mtmp->mtame) 1025 return; 1026 mtmp->mpeaceful = 0; 1027 if (ishuman(mtmp)) 1028 pline("%s gets angry!", Monnam(mtmp)); 1029 } 1030 1031 /* 1032 * not one hundred procent correct: now a snake may hide under an invisible 1033 * object 1034 */ 1035 int 1036 canseemon(mtmp) 1037 struct monst *mtmp; 1038 { 1039 return ((!mtmp->minvis || See_invisible) 1040 && (!mtmp->mhide || !o_at(mtmp->mx, mtmp->my)) 1041 && cansee(mtmp->mx, mtmp->my)); 1042 } 1043