Below is the full text to src/hack.c from NetHack 3.4.3. To link to a particular line, write [[hack.c#line123]], for example.
Top of file[]
1. /* SCCS Id: @(#)hack.c 3.4 2003/04/30 */ 2. /* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */ 3. /* NetHack may be freely redistributed. See license for details. */ 4.
| The NetHack General Public License applies to screenshots, source code and other content from NetHack. |
5. #include "hack.h" 6. 7. #ifdef OVL1 8. STATIC_DCL void NDECL(maybe_wail); 9. #endif /*OVL1*/ 10. STATIC_DCL int NDECL(moverock); 11. STATIC_DCL int FDECL(still_chewing,(XCHAR_P,XCHAR_P)); 12. #ifdef SINKS 13. STATIC_DCL void NDECL(dosinkfall); 14. #endif 15. STATIC_DCL boolean FDECL(findtravelpath, (BOOLEAN_P)); 16. STATIC_DCL boolean FDECL(monstinroom, (struct permonst *,int)); 17. 18. STATIC_DCL void FDECL(move_update, (BOOLEAN_P)); 19. 20. #define IS_SHOP(x) (rooms[x].rtype >= SHOPBASE) 21.
revive_nasty[]
22. #ifdef OVL2 23. 24. boolean 25. revive_nasty(x, y, msg) 26. int x,y; 27. const char *msg; 28. { 29. register struct obj *otmp, *otmp2; 30. struct monst *mtmp; 31. coord cc; 32. boolean revived = FALSE; 33. 34. for(otmp = level.objects[x][y]; otmp; otmp = otmp2) { 35. otmp2 = otmp->nexthere; 36. if (otmp->otyp == CORPSE && 37. (is_rider(&mons[otmp->corpsenm]) || 38. otmp->corpsenm == PM_WIZARD_OF_YENDOR)) { 39. /* move any living monster already at that location */ 40. if((mtmp = m_at(x,y)) && enexto(&cc, x, y, mtmp->data)) 41. rloc_to(mtmp, cc.x, cc.y); 42. if(msg) Norep("%s", msg); 43. revived = revive_corpse(otmp); 44. } 45. } 46. 47. /* this location might not be safe, if not, move revived monster */ 48. if (revived) { 49. mtmp = m_at(x,y); 50. if (mtmp && !goodpos(x, y, mtmp, 0) && 51. enexto(&cc, x, y, mtmp->data)) { 52. rloc_to(mtmp, cc.x, cc.y); 53. } 54. /* else impossible? */ 55. } 56. 57. return (revived); 58. } 59.
moverock[]
Called when the player attempts to move into a space occupied by a boulder. The player may push the boulder, fail to move the boulder, or squeeze into the same space as the boulder.
60. STATIC_OVL int 61. moverock() 62. { 63. register xchar rx, ry, sx, sy; 64. register struct obj *otmp; 65. register struct trap *ttmp; 66. register struct monst *mtmp; 67. 68. sx = u.ux + u.dx, sy = u.uy + u.dy; /* boulder starting position */ 69. while ((otmp = sobj_at(BOULDER, sx, sy)) != 0) { 70. /* make sure that this boulder is visible as the top object */ 71. if (otmp != level.objects[sx][sy]) movobj(otmp, sx, sy); 72. 73. rx = u.ux + 2 * u.dx; /* boulder destination position */ 74. ry = u.uy + 2 * u.dy; 75. nomul(0); 76. if (Levitation || Is_airlevel(&u.uz)) { 77. if (Blind) feel_location(sx, sy); 78. You("don't have enough leverage to push %s.", the(xname(otmp))); 79. /* Give them a chance to climb over it? */ 80. return -1; 81. }
You can't push boulders while levitating or on the Plane of Air.
82. if (verysmall(youmonst.data) 83. #ifdef STEED 84. && !u.usteed 85. #endif 86. ) { 87. if (Blind) feel_location(sx, sy); 88. pline("You're too small to push that %s.", xname(otmp)); 89. goto cannot_push; 90. }
If you are polymorphed into a very small monster and are not riding a steed, you cannot push boulders.
91. if (isok(rx,ry) && !IS_ROCK(levl[rx][ry].typ) && 92. levl[rx][ry].typ != IRONBARS && 93. (!IS_DOOR(levl[rx][ry].typ) || !(u.dx && u.dy) || ( 94. #ifdef REINCARNATION 95. !Is_rogue_level(&u.uz) && 96. #endif 97. (levl[rx][ry].doormask & ~D_BROKEN) == D_NODOOR)) && 98. !sobj_at(BOULDER, rx, ry)) { 99. ttmp = t_at(rx, ry); 100. mtmp = m_at(rx, ry); 101.
Pushing the boulder may be successful if you are in Sokoban, not trying to push into rock or iron bars, not trying to push diagonally through a door or Rogue level doorway, and not trying to push into a space already containing a boulder. If you may be successful, we store the trap and the monster at the destination, for the following sections of code.
102. /* KMH -- Sokoban doesn't let you push boulders diagonally */ 103. if (In_sokoban(&u.uz) && u.dx && u.dy) { 104. if (Blind) feel_location(sx,sy); 105. pline("%s won't roll diagonally on this %s.", 106. The(xname(otmp)), surface(sx, sy)); 107. goto cannot_push; 108. } 109.
You can't push boulders diagonally in Sokoban.
110. if (revive_nasty(rx, ry, "You sense movement on the other side.")) 111. return (-1); 112.
Try to revive a nasty corpse, such as a Rider on the other side. If so, the corpse comes back to life and you can't push the boulder.
113. if (mtmp && !noncorporeal(mtmp->data) && 114. (!mtmp->mtrapped || 115. !(ttmp && ((ttmp->ttyp == PIT) || 116. (ttmp->ttyp == SPIKED_PIT))))) { 117. if (Blind) feel_location(sx, sy); 118. if (canspotmon(mtmp)) 119. pline("There's %s on the other side.", a_monnam(mtmp)); 120. else { 121. You_hear("a monster behind %s.", the(xname(otmp))); 122. map_invisible(rx, ry); 123. } 124. if (flags.verbose) 125. pline("Perhaps that's why %s cannot move it.", 126. #ifdef STEED 127. u.usteed ? y_monnam(u.usteed) : 128. #endif 129. "you"); 130. goto cannot_push; 131. } 132.
If there is a monster with a body that is not trapped in a pit or spiked pit at the destination square, you can't push the boulder.
133. if (ttmp) 134. switch(ttmp->ttyp) {
The following code handles any traps on the destination square.
135. case LANDMINE: 136. if (rn2(10)) { 137. obj_extract_self(otmp); 138. place_object(otmp, rx, ry); 139. unblock_point(sx, sy); 140. newsym(sx, sy); 141. pline("KAABLAMM!!! %s %s land mine.", 142. Tobjnam(otmp, "trigger"), 143. ttmp->madeby_u ? "your" : "a"); 144. blow_up_landmine(ttmp); 145. /* if the boulder remains, it should fill the pit */ 146. fill_pit(u.ux, u.uy); 147. if (cansee(rx,ry)) newsym(rx,ry); 148. continue; 149. } 150. break;
If you push into a landmine, it will trigger the landmine with 90% probability. If the boulder is not broken or destroyed by the resulting explosion, it will fill the resulting pit.
151. case SPIKED_PIT: 152. case PIT: 153. obj_extract_self(otmp); 154. /* vision kludge to get messages right; 155. the pit will temporarily be seen even 156. if this is one among multiple boulders */ 157. if (!Blind) viz_array[ry][rx] |= IN_SIGHT; 158. if (!flooreffects(otmp, rx, ry, "fall")) { 159. place_object(otmp, rx, ry); 160. } 161. if (mtmp && !Blind) newsym(rx, ry); 162. continue;
Pushing a boulder into a pit or spiked pit will cause damage to a trapped monster. If the monster dies, the boulder will fill the pit, removing the trap.
163. case HOLE: 164. case TRAPDOOR: 165. if (Blind) 166. pline("Kerplunk! You no longer feel %s.", 167. the(xname(otmp))); 168. else 169. pline("%s%s and %s a %s in the %s!", 170. Tobjnam(otmp, 171. (ttmp->ttyp == TRAPDOOR) ? "trigger" : "fall"), 172. (ttmp->ttyp == TRAPDOOR) ? nul : " into", 173. otense(otmp, "plug"), 174. (ttmp->ttyp == TRAPDOOR) ? "trap door" : "hole", 175. surface(rx, ry)); 176. deltrap(ttmp); 177. delobj(otmp); 178. bury_objs(rx, ry); 179. if (cansee(rx,ry)) newsym(rx,ry); 180. continue;
Pushing a boulder into a hole or trapdoor will remove the trap and the boulder.
181. case LEVEL_TELEP: 182. case TELEP_TRAP: 183. #ifdef STEED 184. if (u.usteed) 185. pline("%s pushes %s and suddenly it disappears!", 186. upstart(y_monnam(u.usteed)), the(xname(otmp))); 187. else 188. #endif 189. You("push %s and suddenly it disappears!", 190. the(xname(otmp))); 191. if (ttmp->ttyp == TELEP_TRAP) 192. rloco(otmp); 193. else { 194. int newlev = random_teleport_level(); 195. d_level dest; 196. 197. if (newlev == depth(&u.uz) || In_endgame(&u.uz)) 198. continue; 199. obj_extract_self(otmp); 200. add_to_migration(otmp); 201. get_level(&dest, newlev); 202. otmp->ox = dest.dnum; 203. otmp->oy = dest.dlevel; 204. otmp->owornmask = (long)MIGR_RANDOM; 205. } 206. seetrap(ttmp); 207. continue;
If you push the boulder into a teleportation or level teleportation trap, the boulder will teleport.
208. } 209. if (closed_door(rx, ry)) 210. goto nopushmsg;
You can't push a boulder into a closed door.
211. if (boulder_hits_pool(otmp, rx, ry, TRUE)) 212. continue;
If the boulder is being pushed into water or lava, it will be consumed and may or may not fill the space.
213. /* 214. * Re-link at top of fobj chain so that pile order is preserved 215. * when level is restored. 216. */ 217. if (otmp != fobj) { 218. remove_object(otmp); 219. place_object(otmp, otmp->ox, otmp->oy); 220. } 221. 222. { 223. #ifdef LINT /* static long lastmovetime; */ 224. long lastmovetime; 225. lastmovetime = 0; 226. #else 227. /* note: reset to zero after save/restore cycle */ 228. static NEARDATA long lastmovetime; 229. #endif
Designed to prevent consecutive "With great effort you move the boulder" messages from appearing.
230. #ifdef STEED 231. if (!u.usteed) { 232. #endif 233. if (moves > lastmovetime+2 || moves < lastmovetime) 234. pline("With %s effort you move %s.", 235. throws_rocks(youmonst.data) ? "little" : "great", 236. the(xname(otmp)));
The message will only appear if you haven't pushed a boulder within the past three turns.
237. exercise(A_STR, TRUE);
Pushing boulders exercises strength.
238. #ifdef STEED 239. } else 240. pline("%s moves %s.", 241. upstart(y_monnam(u.usteed)), the(xname(otmp))); 242. #endif 243. lastmovetime = moves; 244. } 245. 246. /* Move the boulder *after* the message. */ 247. if (glyph_is_invisible(levl[rx][ry].glyph)) 248. unmap_object(rx, ry); 249. movobj(otmp, rx, ry); /* does newsym(rx,ry) */ 250. if (Blind) { 251. feel_location(rx,ry); 252. feel_location(sx, sy); 253. } else { 254. newsym(sx, sy); 255. } 256. } else {
This code moves the boulder, then updates the map and has you feel the square the boulder was originally on (if you were blind).
257. nopushmsg: 258. #ifdef STEED 259. if (u.usteed) 260. pline("%s tries to move %s, but cannot.", 261. upstart(y_monnam(u.usteed)), the(xname(otmp))); 262. else 263. #endif 264. You("try to move %s, but in vain.", the(xname(otmp))); 265. if (Blind) feel_location(sx, sy); 266. cannot_push:
If you were not able to push the boulder for some reason, the following code happens.
267. if (throws_rocks(youmonst.data)) { 268. #ifdef STEED 269. if (u.usteed && P_SKILL(P_RIDING) < P_BASIC) { 270. You("aren't skilled enough to %s %s from %s.", 271. (flags.pickup && !In_sokoban(&u.uz)) 272. ? "pick up" : "push aside", 273. the(xname(otmp)), y_monnam(u.usteed)); 274. } else 275. #endif 276. { 277. pline("However, you can easily %s.", 278. (flags.pickup && !In_sokoban(&u.uz)) 279. ? "pick it up" : "push it aside"); 280. if (In_sokoban(&u.uz)) 281. change_luck(-1); /* Sokoban guilt */ 282. break; 283. }
If you can throw rocks are are not riding a steed unskilled, you can pick up the boulder or move into its space. If you do that in Sokoban, there is a luck penalty.
284. break; 285. } 286. 287. if ( 288. #ifdef STEED 289. !u.usteed && 290. #endif 291. (((!invent || inv_weight() <= -850) && 292. (!u.dx || !u.dy || (IS_ROCK(levl[u.ux][sy].typ) 293. && IS_ROCK(levl[sx][u.uy].typ)))) 294. || verysmall(youmonst.data))) { 295. pline("However, you can squeeze yourself into a small opening."); 296. if (In_sokoban(&u.uz)) 297. change_luck(-1); /* Sokoban guilt */ 298. break; 299. } else 300. return (-1);
If you are not on a steed and either are very small, carrying nothing or your inventory is 850 or more units below your carrying capacity, you can occupy the same space as the boulder. Again, this incurs a luck penalty in Sokoban.
301. } 302. } 303. return (0); 304. } 305.
still_chewing[]
306. /* 307. * still_chewing() 308. * 309. * Chew on a wall, door, or boulder. Returns TRUE if still eating, FALSE 310. * when done. 311. */ 312. STATIC_OVL int 313. still_chewing(x,y) 314. xchar x, y; 315. { 316. struct rm *lev = &levl[x][y]; 317. struct obj *boulder = sobj_at(BOULDER,x,y); 318. const char *digtxt = (char *)0, *dmgtxt = (char *)0; 319. 320. if (digging.down) /* not continuing previous dig (w/ pick-axe) */ 321. (void) memset((genericptr_t)&digging, 0, sizeof digging); 322. 323. if (!boulder && IS_ROCK(lev->typ) && !may_dig(x,y)) { 324. You("hurt your teeth on the %s.", 325. IS_TREE(lev->typ) ? "tree" : "hard stone"); 326. nomul(0); 327. return 1; 328. } else if (digging.pos.x != x || digging.pos.y != y || 329. !on_level(&digging.level, &u.uz)) { 330. digging.down = FALSE; 331. digging.chew = TRUE; 332. digging.warned = FALSE; 333. digging.pos.x = x; 334. digging.pos.y = y; 335. assign_level(&digging.level, &u.uz); 336. /* solid rock takes more work & time to dig through */ 337. digging.effort = 338. (IS_ROCK(lev->typ) && !IS_TREE(lev->typ) ? 30 : 60) + u.udaminc; 339. You("start chewing %s %s.", 340. (boulder || IS_TREE(lev->typ)) ? "on a" : "a hole in the", 341. boulder ? "boulder" : 342. IS_TREE(lev->typ) ? "tree" : IS_ROCK(lev->typ) ? "rock" : "door"); 343. watch_dig((struct monst *)0, x, y, FALSE); 344. return 1; 345. } else if ((digging.effort += (30 + u.udaminc)) <= 100) { 346. if (flags.verbose) 347. You("%s chewing on the %s.", 348. digging.chew ? "continue" : "begin", 349. boulder ? "boulder" : 350. IS_TREE(lev->typ) ? "tree" : 351. IS_ROCK(lev->typ) ? "rock" : "door"); 352. digging.chew = TRUE; 353. watch_dig((struct monst *)0, x, y, FALSE); 354. return 1; 355. } 356. 357. /* Okay, you've chewed through something */ 358. u.uconduct.food++; 359. u.uhunger += rnd(20); 360. 361. if (boulder) { 362. delobj(boulder); /* boulder goes bye-bye */ 363. You("eat the boulder."); /* yum */ 364. 365. /* 366. * The location could still block because of 367. * 1. More than one boulder 368. * 2. Boulder stuck in a wall/stone/door. 369. * 370. * [perhaps use does_block() below (from vision.c)] 371. */ 372. if (IS_ROCK(lev->typ) || closed_door(x,y) || sobj_at(BOULDER,x,y)) { 373. block_point(x,y); /* delobj will unblock the point */ 374. /* reset dig state */ 375. (void) memset((genericptr_t)&digging, 0, sizeof digging); 376. return 1; 377. } 378. 379. } else if (IS_WALL(lev->typ)) { 380. if (*in_rooms(x, y, SHOPBASE)) { 381. add_damage(x, y, 10L * ACURRSTR); 382. dmgtxt = "damage"; 383. } 384. digtxt = "chew a hole in the wall."; 385. if (level.flags.is_maze_lev) { 386. lev->typ = ROOM; 387. } else if (level.flags.is_cavernous_lev && !in_town(x, y)) { 388. lev->typ = CORR; 389. } else { 390. lev->typ = DOOR; 391. lev->doormask = D_NODOOR; 392. } 393. } else if (IS_TREE(lev->typ)) { 394. digtxt = "chew through the tree."; 395. lev->typ = ROOM; 396. } else if (lev->typ == SDOOR) { 397. if (lev->doormask & D_TRAPPED) { 398. lev->doormask = D_NODOOR; 399. b_trapped("secret door", 0); 400. } else { 401. digtxt = "chew through the secret door."; 402. lev->doormask = D_BROKEN; 403. } 404. lev->typ = DOOR; 405. 406. } else if (IS_DOOR(lev->typ)) { 407. if (*in_rooms(x, y, SHOPBASE)) { 408. add_damage(x, y, 400L); 409. dmgtxt = "break"; 410. } 411. if (lev->doormask & D_TRAPPED) { 412. lev->doormask = D_NODOOR; 413. b_trapped("door", 0); 414. } else { 415. digtxt = "chew through the door."; 416. lev->doormask = D_BROKEN; 417. } 418. 419. } else { /* STONE or SCORR */ 420. digtxt = "chew a passage through the rock."; 421. lev->typ = CORR; 422. } 423. 424. unblock_point(x, y); /* vision */ 425. newsym(x, y); 426. if (digtxt) You(digtxt); /* after newsym */ 427. if (dmgtxt) pay_for_damage(dmgtxt, FALSE); 428. (void) memset((genericptr_t)&digging, 0, sizeof digging); 429. return 0; 430. } 431. 432. #endif /* OVL2 */
movobj[]
433. #ifdef OVLB 434. 435. void 436. movobj(obj, ox, oy) 437. register struct obj *obj; 438. register xchar ox, oy; 439. { 440. /* optimize by leaving on the fobj chain? */ 441. remove_object(obj); 442. newsym(obj->ox, obj->oy); 443. place_object(obj, ox, oy); 444. newsym(ox, oy); 445. } 446.
dosinkfall[]
447. #ifdef SINKS 448. static NEARDATA const char fell_on_sink[] = "fell onto a sink"; 449. 450. STATIC_OVL void 451. dosinkfall() 452. { 453. register struct obj *obj; 454. 455. if (is_floater(youmonst.data) || (HLevitation & FROMOUTSIDE)) { 456. You("wobble unsteadily for a moment."); 457. } else { 458. long save_ELev = ELevitation, save_HLev = HLevitation; 459. 460. /* fake removal of levitation in advance so that final 461. disclosure will be right in case this turns out to 462. be fatal; fortunately the fact that rings and boots 463. are really still worn has no effect on bones data */ 464. ELevitation = HLevitation = 0L; 465. You("crash to the floor!"); 466. losehp(rn1(8, 25 - (int)ACURR(A_CON)), 467. fell_on_sink, NO_KILLER_PREFIX); 468. exercise(A_DEX, FALSE); 469. selftouch("Falling, you"); 470. for (obj = level.objects[u.ux][u.uy]; obj; obj = obj->nexthere) 471. if (obj->oclass == WEAPON_CLASS || is_weptool(obj)) { 472. You("fell on %s.", doname(obj)); 473. losehp(rnd(3), fell_on_sink, NO_KILLER_PREFIX); 474. exercise(A_CON, FALSE); 475. } 476. ELevitation = save_ELev; 477. HLevitation = save_HLev; 478. } 479. 480. ELevitation &= ~W_ARTI; 481. HLevitation &= ~(I_SPECIAL|TIMEOUT); 482. HLevitation++; 483. if(uleft && uleft->otyp == RIN_LEVITATION) { 484. obj = uleft; 485. Ring_off(obj); 486. off_msg(obj); 487. } 488. if(uright && uright->otyp == RIN_LEVITATION) { 489. obj = uright; 490. Ring_off(obj); 491. off_msg(obj); 492. } 493. if(uarmf && uarmf->otyp == LEVITATION_BOOTS) { 494. obj = uarmf; 495. (void)Boots_off(); 496. off_msg(obj); 497. } 498. HLevitation--; 499. } 500. #endif 501.
may_dig[]
502. boolean 503. may_dig(x,y) 504. register xchar x,y; 505. /* intended to be called only on ROCKs */ 506. { 507. return (boolean)(!(IS_STWALL(levl[x][y].typ) && 508. (levl[x][y].wall_info & W_NONDIGGABLE))); 509. } 510.
may_passwall[]
511. boolean 512. may_passwall(x,y) 513. register xchar x,y; 514. { 515. return (boolean)(!(IS_STWALL(levl[x][y].typ) && 516. (levl[x][y].wall_info & W_NONPASSWALL))); 517. } 518. 519. #endif /* OVLB */
bad_rock[]
520. #ifdef OVL1 521. 522. boolean 523. bad_rock(mdat,x,y) 524. struct permonst *mdat; 525. register xchar x,y; 526. { 527. return((boolean) ((In_sokoban(&u.uz) && sobj_at(BOULDER,x,y)) || 528. (IS_ROCK(levl[x][y].typ) 529. && (!tunnels(mdat) || needspick(mdat) || !may_dig(x,y)) 530. && !(passes_walls(mdat) && may_passwall(x,y))))); 531. } 532.
invocation_pos[]
533. boolean 534. invocation_pos(x, y) 535. xchar x, y; 536. { 537. return((boolean)(Invocation_lev(&u.uz) && x == inv_pos.x && y == inv_pos.y)); 538. } 539. 540. #endif /* OVL1 */
test_move[]
541. #ifdef OVL3 542. 543. /* return TRUE if (dx,dy) is an OK place to move 544. * mode is one of DO_MOVE, TEST_MOVE or TEST_TRAV 545. */ 546. boolean 547. test_move(ux, uy, dx, dy, mode) 548. int ux, uy, dx, dy; 549. int mode; 550. { 551. int x = ux+dx; 552. int y = uy+dy; 553. register struct rm *tmpr = &levl[x][y]; 554. register struct rm *ust; 555. 556. /* 557. * Check for physical obstacles. First, the place we are going. 558. */ 559. if (IS_ROCK(tmpr->typ) || tmpr->typ == IRONBARS) { 560. if (Blind && mode == DO_MOVE) feel_location(x,y); 561. if (Passes_walls && may_passwall(x,y)) { 562. ; /* do nothing */ 563. } else if (tmpr->typ == IRONBARS) { 564. if (!(Passes_walls || passes_bars(youmonst.data))) 565. return FALSE; 566. } else if (tunnels(youmonst.data) && !needspick(youmonst.data)) { 567. /* Eat the rock. */ 568. if (mode == DO_MOVE && still_chewing(x,y)) return FALSE; 569. } else if (flags.autodig && !flags.run && !flags.nopick && 570. uwep && is_pick(uwep)) { 571. /* MRKR: Automatic digging when wielding the appropriate tool */ 572. if (mode == DO_MOVE) 573. (void) use_pick_axe2(uwep); 574. return FALSE; 575. } else { 576. if (mode == DO_MOVE) { 577. if (Is_stronghold(&u.uz) && is_db_wall(x,y)) 578. pline_The("drawbridge is up!"); 579. if (Passes_walls && !may_passwall(x,y) && In_sokoban(&u.uz)) 580. pline_The("Sokoban walls resist your ability."); 581. } 582. return FALSE; 583. } 584. } else if (IS_DOOR(tmpr->typ)) { 585. if (closed_door(x,y)) { 586. if (Blind && mode == DO_MOVE) feel_location(x,y); 587. if (Passes_walls) 588. ; /* do nothing */ 589. else if (can_ooze(&youmonst)) { 590. if (mode == DO_MOVE) You("ooze under the door."); 591. } else if (tunnels(youmonst.data) && !needspick(youmonst.data)) { 592. /* Eat the door. */ 593. if (mode == DO_MOVE && still_chewing(x,y)) return FALSE; 594. } else { 595. if (mode == DO_MOVE) { 596. if (amorphous(youmonst.data)) 597. You("try to ooze under the door, but can't squeeze your possessions through."); 598. else if (x == ux || y == uy) { 599. if (Blind || Stunned || ACURR(A_DEX) < 10 || Fumbling) { 600. #ifdef STEED 601. if (u.usteed) { 602. You_cant("lead %s through that closed door.", 603. y_monnam(u.usteed)); 604. } else 605. #endif 606. { 607. pline("Ouch! You bump into a door."); 608. exercise(A_DEX, FALSE); 609. } 610. } else pline("That door is closed."); 611. } 612. } else if (mode == TEST_TRAV) goto testdiag; 613. return FALSE; 614. } 615. } else { 616. testdiag: 617. if (dx && dy && !Passes_walls 618. && ((tmpr->doormask & ~D_BROKEN) 619. #ifdef REINCARNATION 620. || Is_rogue_level(&u.uz) 621. #endif 622. || block_door(x,y))) { 623. /* Diagonal moves into a door are not allowed. */ 624. if (Blind && mode == DO_MOVE) 625. feel_location(x,y); 626. return FALSE; 627. } 628. } 629. } 630. if (dx && dy 631. && bad_rock(youmonst.data,ux,y) && bad_rock(youmonst.data,x,uy)) { 632. /* Move at a diagonal. */ 633. if (In_sokoban(&u.uz)) { 634. if (mode == DO_MOVE) 635. You("cannot pass that way."); 636. return FALSE; 637. } 638. if (bigmonst(youmonst.data)) { 639. if (mode == DO_MOVE) 640. Your("body is too large to fit through."); 641. return FALSE; 642. } 643. if (invent && (inv_weight() + weight_cap() > 600)) { 644. if (mode == DO_MOVE) 645. You("are carrying too much to get through."); 646. return FALSE; 647. } 648. } 649. /* Pick travel path that does not require crossing a trap. 650. * Avoid water and lava using the usual running rules. 651. * (but not u.ux/u.uy because findtravelpath walks toward u.ux/u.uy) */ 652. if (flags.run == 8 && mode != DO_MOVE && (x != u.ux || y != u.uy)) { 653. struct trap* t = t_at(x, y); 654. 655. if ((t && t->tseen) || 656. (!Levitation && !Flying && 657. !is_clinger(youmonst.data) && 658. (is_pool(x, y) || is_lava(x, y)) && levl[x][y].seenv)) 659. return FALSE; 660. } 661. 662. ust = &levl[ux][uy]; 663. 664. /* Now see if other things block our way . . */ 665. if (dx && dy && !Passes_walls 666. && (IS_DOOR(ust->typ) && ((ust->doormask & ~D_BROKEN) 667. #ifdef REINCARNATION 668. || Is_rogue_level(&u.uz) 669. #endif 670. || block_entry(x, y)) 671. )) { 672. /* Can't move at a diagonal out of a doorway with door. */ 673. return FALSE; 674. } 675. 676. if (sobj_at(BOULDER,x,y) && (In_sokoban(&u.uz) || !Passes_walls)) { 677. if (!(Blind || Hallucination) && (flags.run >= 2) && mode != TEST_TRAV) 678. return FALSE; 679. if (mode == DO_MOVE) { 680. /* tunneling monsters will chew before pushing */ 681. if (tunnels(youmonst.data) && !needspick(youmonst.data) && 682. !In_sokoban(&u.uz)) { 683. if (still_chewing(x,y)) return FALSE; 684. } else 685. if (moverock() < 0) return FALSE; 686. } else if (mode == TEST_TRAV) { 687. struct obj* obj; 688. 689. /* don't pick two boulders in a row, unless there's a way thru */ 690. if (sobj_at(BOULDER,ux,uy) && !In_sokoban(&u.uz)) { 691. if (!Passes_walls && 692. !(tunnels(youmonst.data) && !needspick(youmonst.data)) && 693. !carrying(PICK_AXE) && !carrying(DWARVISH_MATTOCK) && 694. !((obj = carrying(WAN_DIGGING)) && 695. !objects[obj->otyp].oc_name_known)) 696. return FALSE; 697. } 698. } 699. /* assume you'll be able to push it when you get there... */ 700. } 701. 702. /* OK, it is a legal place to move. */ 703. return TRUE; 704. } 705.
findtravelpath[]
706. /* 707. * Find a path from the destination (u.tx,u.ty) back to (u.ux,u.uy). 708. * A shortest path is returned. If guess is TRUE, consider various 709. * inaccessible locations as valid intermediate path points. 710. * Returns TRUE if a path was found. 711. */ 712. static boolean 713. findtravelpath(guess) 714. boolean guess; 715. { 716. /* if travel to adjacent, reachable location, use normal movement rules */ 717. if (!guess && iflags.travel1 && distmin(u.ux, u.uy, u.tx, u.ty) == 1) { 718. flags.run = 0; 719. if (test_move(u.ux, u.uy, u.tx-u.ux, u.ty-u.uy, TEST_MOVE)) { 720. u.dx = u.tx-u.ux; 721. u.dy = u.ty-u.uy; 722. nomul(0); 723. iflags.travelcc.x = iflags.travelcc.y = -1; 724. return TRUE; 725. } 726. flags.run = 8; 727. } 728. if (u.tx != u.ux || u.ty != u.uy) { 729. xchar travel[COLNO][ROWNO]; 730. xchar travelstepx[2][COLNO*ROWNO]; 731. xchar travelstepy[2][COLNO*ROWNO]; 732. xchar tx, ty, ux, uy; 733. int n = 1; /* max offset in travelsteps */ 734. int set = 0; /* two sets current and previous */ 735. int radius = 1; /* search radius */ 736. int i; 737. 738. /* If guessing, first find an "obvious" goal location. The obvious 739. * goal is the position the player knows of, or might figure out 740. * (couldsee) that is closest to the target on a straight path. 741. */ 742. if (guess) { 743. tx = u.ux; ty = u.uy; ux = u.tx; uy = u.ty; 744. } else { 745. tx = u.tx; ty = u.ty; ux = u.ux; uy = u.uy; 746. } 747. 748. noguess: 749. (void) memset((genericptr_t)travel, 0, sizeof(travel)); 750. travelstepx[0][0] = tx; 751. travelstepy[0][0] = ty; 752. 753. while (n != 0) { 754. int nn = 0; 755. 756. for (i = 0; i < n; i++) { 757. int dir; 758. int x = travelstepx[set][i]; 759. int y = travelstepy[set][i]; 760. static int ordered[] = { 0, 2, 4, 6, 1, 3, 5, 7 }; 761. /* no diagonal movement for grid bugs */ 762. int dirmax = u.umonnum == PM_GRID_BUG ? 4 : 8; 763. 764. for (dir = 0; dir < dirmax; ++dir) { 765. int nx = x+xdir[ordered[dir]]; 766. int ny = y+ydir[ordered[dir]]; 767. 768. if (!isok(nx, ny)) continue; 769. if ((!Passes_walls && !can_ooze(&youmonst) && 770. closed_door(x, y)) || sobj_at(BOULDER, x, y)) { 771. /* closed doors and boulders usually 772. * cause a delay, so prefer another path */ 773. if (travel[x][y] > radius-3) { 774. travelstepx[1-set][nn] = x; 775. travelstepy[1-set][nn] = y; 776. /* don't change travel matrix! */ 777. nn++; 778. continue; 779. } 780. } 781. if (test_move(x, y, nx-x, ny-y, TEST_TRAV) && 782. (levl[nx][ny].seenv || (!Blind && couldsee(nx, ny)))) { 783. if (nx == ux && ny == uy) { 784. if (!guess) { 785. u.dx = x-ux; 786. u.dy = y-uy; 787. if (x == u.tx && y == u.ty) { 788. nomul(0); 789. /* reset run so domove run checks work */ 790. flags.run = 8; 791. iflags.travelcc.x = iflags.travelcc.y = -1; 792. } 793. return TRUE; 794. } 795. } else if (!travel[nx][ny]) { 796. travelstepx[1-set][nn] = nx; 797. travelstepy[1-set][nn] = ny; 798. travel[nx][ny] = radius; 799. nn++; 800. } 801. } 802. } 803. } 804. 805. n = nn; 806. set = 1-set; 807. radius++; 808. } 809. 810. /* if guessing, find best location in travel matrix and go there */ 811. if (guess) { 812. int px = tx, py = ty; /* pick location */ 813. int dist, nxtdist, d2, nd2; 814. 815. dist = distmin(ux, uy, tx, ty); 816. d2 = dist2(ux, uy, tx, ty); 817. for (tx = 1; tx < COLNO; ++tx) 818. for (ty = 0; ty < ROWNO; ++ty) 819. if (travel[tx][ty]) { 820. nxtdist = distmin(ux, uy, tx, ty); 821. if (nxtdist == dist && couldsee(tx, ty)) { 822. nd2 = dist2(ux, uy, tx, ty); 823. if (nd2 < d2) { 824. /* prefer non-zigzag path */ 825. px = tx; py = ty; 826. d2 = nd2; 827. } 828. } else if (nxtdist < dist && couldsee(tx, ty)) { 829. px = tx; py = ty; 830. dist = nxtdist; 831. d2 = dist2(ux, uy, tx, ty); 832. } 833. } 834. 835. if (px == u.ux && py == u.uy) { 836. /* no guesses, just go in the general direction */ 837. u.dx = sgn(u.tx - u.ux); 838. u.dy = sgn(u.ty - u.uy); 839. if (test_move(u.ux, u.uy, u.dx, u.dy, TEST_MOVE)) 840. return TRUE; 841. goto found; 842. } 843. tx = px; 844. ty = py; 845. ux = u.ux; 846. uy = u.uy; 847. set = 0; 848. n = radius = 1; 849. guess = FALSE; 850. goto noguess; 851. } 852. return FALSE; 853. } 854. 855. found: 856. u.dx = 0; 857. u.dy = 0; 858. nomul(0); 859. return FALSE; 860. } 861.
domove[]
862. void 863. domove() 864. { 865. register struct monst *mtmp; 866. register struct rm *tmpr; 867. register xchar x,y; 868. struct trap *trap; 869. int wtcap; 870. boolean on_ice; 871. xchar chainx, chainy, ballx, bally; /* ball&chain new positions */ 872. int bc_control; /* control for ball&chain */ 873. boolean cause_delay = FALSE; /* dragging ball will skip a move */ 874. const char *predicament; 875. 876. u_wipe_engr(rnd(5)); 877. 878. if (flags.travel) { 879. if (!findtravelpath(FALSE)) 880. (void) findtravelpath(TRUE); 881. iflags.travel1 = 0; 882. } 883. 884. if(((wtcap = near_capacity()) >= OVERLOADED 885. || (wtcap > SLT_ENCUMBER && 886. (Upolyd ? (u.mh < 5 && u.mh != u.mhmax) 887. : (u.uhp < 10 && u.uhp != u.uhpmax)))) 888. && !Is_airlevel(&u.uz)) { 889. if(wtcap < OVERLOADED) { 890. You("don't have enough stamina to move."); 891. exercise(A_CON, FALSE); 892. } else 893. You("collapse under your load."); 894. nomul(0); 895. return; 896. } 897. if(u.uswallow) { 898. u.dx = u.dy = 0; 899. u.ux = x = u.ustuck->mx; 900. u.uy = y = u.ustuck->my; 901. mtmp = u.ustuck; 902. } else { 903. if (Is_airlevel(&u.uz) && rn2(4) && 904. !Levitation && !Flying) { 905. switch(rn2(3)) { 906. case 0: 907. You("tumble in place."); 908. exercise(A_DEX, FALSE); 909. break; 910. case 1: 911. You_cant("control your movements very well."); break; 912. case 2: 913. pline("It's hard to walk in thin air."); 914. exercise(A_DEX, TRUE); 915. break; 916. } 917. return; 918. } 919. 920. /* check slippery ice */ 921. on_ice = !Levitation && is_ice(u.ux, u.uy); 922. if (on_ice) { 923. static int skates = 0; 924. if (!skates) skates = find_skates(); 925. if ((uarmf && uarmf->otyp == skates) 926. || resists_cold(&youmonst) || Flying 927. || is_floater(youmonst.data) || is_clinger(youmonst.data) 928. || is_whirly(youmonst.data)) 929. on_ice = FALSE; 930. else if (!rn2(Cold_resistance ? 3 : 2)) { 931. HFumbling |= FROMOUTSIDE; 932. HFumbling &= ~TIMEOUT; 933. HFumbling += 1; /* slip on next move */ 934. } 935. } 936. if (!on_ice && (HFumbling & FROMOUTSIDE)) 937. HFumbling &= ~FROMOUTSIDE; 938. 939. x = u.ux + u.dx; 940. y = u.uy + u.dy; 941. if(Stunned || (Confusion && !rn2(5))) { 942. register int tries = 0; 943. 944. do { 945. if(tries++ > 50) { 946. nomul(0); 947. return; 948. } 949. confdir(); 950. x = u.ux + u.dx; 951. y = u.uy + u.dy; 952. } while(!isok(x, y) || bad_rock(youmonst.data, x, y)); 953. } 954. /* turbulence might alter your actual destination */ 955. if (u.uinwater) { 956. water_friction(); 957. if (!u.dx && !u.dy) { 958. nomul(0); 959. return; 960. } 961. x = u.ux + u.dx; 962. y = u.uy + u.dy; 963. } 964. if(!isok(x, y)) { 965. nomul(0); 966. return; 967. } 968. if (((trap = t_at(x, y)) && trap->tseen) || 969. (Blind && !Levitation && !Flying && 970. !is_clinger(youmonst.data) && 971. (is_pool(x, y) || is_lava(x, y)) && levl[x][y].seenv)) { 972. if(flags.run >= 2) { 973. nomul(0); 974. flags.move = 0; 975. return; 976. } else 977. nomul(0); 978. } 979. 980. if (u.ustuck && (x != u.ustuck->mx || y != u.ustuck->my)) { 981. if (distu(u.ustuck->mx, u.ustuck->my) > 2) { 982. /* perhaps it fled (or was teleported or ... ) */ 983. u.ustuck = 0; 984. } else if (sticks(youmonst.data)) { 985. /* When polymorphed into a sticking monster, 986. * u.ustuck means it's stuck to you, not you to it. 987. */ 988. You("release %s.", mon_nam(u.ustuck)); 989. u.ustuck = 0; 990. } else { 991. /* If holder is asleep or paralyzed: 992. * 37.5% chance of getting away, 993. * 12.5% chance of waking/releasing it; 994. * otherwise: 995. * 7.5% chance of getting away. 996. * [strength ought to be a factor] 997. * If holder is tame and there is no conflict, 998. * guaranteed escape. 999. */ 1000. switch (rn2(!u.ustuck->mcanmove ? 8 : 40)) { 1001. case 0: case 1: case 2: 1002. pull_free: 1003. You("pull free from %s.", mon_nam(u.ustuck)); 1004. u.ustuck = 0; 1005. break; 1006. case 3: 1007. if (!u.ustuck->mcanmove) { 1008. /* it's free to move on next turn */ 1009. u.ustuck->mfrozen = 1; 1010. u.ustuck->msleeping = 0; 1011. } 1012. /*FALLTHRU*/ 1013. default: 1014. if (u.ustuck->mtame && 1015. !Conflict && !u.ustuck->mconf) 1016. goto pull_free; 1017. You("cannot escape from %s!", mon_nam(u.ustuck)); 1018. nomul(0); 1019. return; 1020. } 1021. } 1022. } 1023. 1024. mtmp = m_at(x,y); 1025. if (mtmp) { 1026. /* Don't attack if you're running, and can see it */ 1027. /* We should never get here if forcefight */ 1028. if (flags.run && 1029. ((!Blind && mon_visible(mtmp) && 1030. ((mtmp->m_ap_type != M_AP_FURNITURE && 1031. mtmp->m_ap_type != M_AP_OBJECT) || 1032. Protection_from_shape_changers)) || 1033. sensemon(mtmp))) { 1034. nomul(0); 1035. flags.move = 0; 1036. return; 1037. } 1038. } 1039. } 1040. 1041. u.ux0 = u.ux; 1042. u.uy0 = u.uy; 1043. bhitpos.x = x; 1044. bhitpos.y = y; 1045. tmpr = &levl[x][y]; 1046. 1047. /* attack monster */ 1048. if(mtmp) { 1049. nomul(0); 1050. /* only attack if we know it's there */ 1051. /* or if we used the 'F' command to fight blindly */ 1052. /* or if it hides_under, in which case we call attack() to print 1053. * the Wait! message. 1054. * This is different from ceiling hiders, who aren't handled in 1055. * attack(). 1056. */ 1057. 1058. /* If they used a 'm' command, trying to move onto a monster 1059. * prints the below message and wastes a turn. The exception is 1060. * if the monster is unseen and the player doesn't remember an 1061. * invisible monster--then, we fall through to attack() and 1062. * attack_check(), which still wastes a turn, but prints a 1063. * different message and makes the player remember the monster. */ 1064. if(flags.nopick && 1065. (canspotmon(mtmp) || glyph_is_invisible(levl[x][y].glyph))){ 1066. if(mtmp->m_ap_type && !Protection_from_shape_changers 1067. && !sensemon(mtmp)) 1068. stumble_onto_mimic(mtmp); 1069. else if (mtmp->mpeaceful && !Hallucination) 1070. pline("Pardon me, %s.", m_monnam(mtmp)); 1071. else 1072. You("move right into %s.", mon_nam(mtmp)); 1073. return; 1074. } 1075. if(flags.forcefight || !mtmp->mundetected || sensemon(mtmp) || 1076. ((hides_under(mtmp->data) || mtmp->data->mlet == S_EEL) && 1077. !is_safepet(mtmp))){ 1078. gethungry(); 1079. if(wtcap >= HVY_ENCUMBER && moves%3) { 1080. if (Upolyd && u.mh > 1) { 1081. u.mh--; 1082. } else if (!Upolyd && u.uhp > 1) { 1083. u.uhp--; 1084. } else { 1085. You("pass out from exertion!"); 1086. exercise(A_CON, FALSE); 1087. fall_asleep(-10, FALSE); 1088. } 1089. } 1090. if(multi < 0) return; /* we just fainted */ 1091. 1092. /* try to attack; note that it might evade */ 1093. /* also, we don't attack tame when _safepet_ */ 1094. if(attack(mtmp)) return; 1095. } 1096. } 1097. 1098. /* specifying 'F' with no monster wastes a turn */ 1099. if (flags.forcefight || 1100. /* remembered an 'I' && didn't use a move command */ 1101. (glyph_is_invisible(levl[x][y].glyph) && !flags.nopick)) { 1102. boolean expl = (Upolyd && attacktype(youmonst.data, AT_EXPL)); 1103. char buf[BUFSZ]; 1104. Sprintf(buf,"a vacant spot on the %s", surface(x,y)); 1105. You("%s %s.", 1106. expl ? "explode at" : "attack", 1107. !Underwater ? "thin air" : 1108. is_pool(x,y) ? "empty water" : buf); 1109. unmap_object(x, y); /* known empty -- remove 'I' if present */ 1110. newsym(x, y); 1111. nomul(0); 1112. if (expl) { 1113. u.mh = -1; /* dead in the current form */ 1114. rehumanize(); 1115. } 1116. return; 1117. } 1118. if (glyph_is_invisible(levl[x][y].glyph)) { 1119. unmap_object(x, y); 1120. newsym(x, y); 1121. } 1122. /* not attacking an animal, so we try to move */ 1123. #ifdef STEED 1124. if (u.usteed && !u.usteed->mcanmove && (u.dx || u.dy)) { 1125. pline("%s won't move!", upstart(y_monnam(u.usteed))); 1126. nomul(0); 1127. return; 1128. } else 1129. #endif 1130. if(!youmonst.data->mmove) { 1131. You("are rooted %s.", 1132. Levitation || Is_airlevel(&u.uz) || Is_waterlevel(&u.uz) ? 1133. "in place" : "to the ground"); 1134. nomul(0); 1135. return; 1136. } 1137. if(u.utrap) { 1138. if(u.utraptype == TT_PIT) { 1139. if (!rn2(2) && sobj_at(BOULDER, u.ux, u.uy)) { 1140. Your("%s gets stuck in a crevice.", body_part(LEG)); 1141. display_nhwindow(WIN_MESSAGE, FALSE); 1142. clear_nhwindow(WIN_MESSAGE); 1143. You("free your %s.", body_part(LEG)); 1144. } else if (!(--u.utrap)) { 1145. You("%s to the edge of the pit.", 1146. (In_sokoban(&u.uz) && Levitation) ? 1147. "struggle against the air currents and float" : 1148. #ifdef STEED 1149. u.usteed ? "ride" : 1150. #endif 1151. "crawl"); 1152. fill_pit(u.ux, u.uy); 1153. vision_full_recalc = 1; /* vision limits change */ 1154. } else if (flags.verbose) { 1155. #ifdef STEED 1156. if (u.usteed) 1157. Norep("%s is still in a pit.", 1158. upstart(y_monnam(u.usteed))); 1159. else 1160. #endif 1161. Norep( (Hallucination && !rn2(5)) ? 1162. "You've fallen, and you can't get up." : 1163. "You are still in a pit." ); 1164. } 1165. } else if (u.utraptype == TT_LAVA) { 1166. if(flags.verbose) { 1167. predicament = "stuck in the lava"; 1168. #ifdef STEED 1169. if (u.usteed) 1170. Norep("%s is %s.", upstart(y_monnam(u.usteed)), 1171. predicament); 1172. else 1173. #endif 1174. Norep("You are %s.", predicament); 1175. } 1176. if(!is_lava(x,y)) { 1177. u.utrap--; 1178. if((u.utrap & 0xff) == 0) { 1179. #ifdef STEED 1180. if (u.usteed) 1181. You("lead %s to the edge of the lava.", 1182. y_monnam(u.usteed)); 1183. else 1184. #endif 1185. You("pull yourself to the edge of the lava."); 1186. u.utrap = 0; 1187. } 1188. } 1189. u.umoved = TRUE; 1190. } else if (u.utraptype == TT_WEB) { 1191. if(uwep && uwep->oartifact == ART_STING) { 1192. u.utrap = 0; 1193. pline("Sting cuts through the web!"); 1194. return; 1195. } 1196. if(--u.utrap) { 1197. if(flags.verbose) { 1198. predicament = "stuck to the web"; 1199. #ifdef STEED 1200. if (u.usteed) 1201. Norep("%s is %s.", upstart(y_monnam(u.usteed)), 1202. predicament); 1203. else 1204. #endif 1205. Norep("You are %s.", predicament); 1206. } 1207. } else { 1208. #ifdef STEED 1209. if (u.usteed) 1210. pline("%s breaks out of the web.", 1211. upstart(y_monnam(u.usteed))); 1212. else 1213. #endif 1214. You("disentangle yourself."); 1215. } 1216. } else if (u.utraptype == TT_INFLOOR) { 1217. if(--u.utrap) { 1218. if(flags.verbose) { 1219. predicament = "stuck in the"; 1220. #ifdef STEED 1221. if (u.usteed) 1222. Norep("%s is %s %s.", 1223. upstart(y_monnam(u.usteed)), 1224. predicament, surface(u.ux, u.uy)); 1225. else 1226. #endif 1227. Norep("You are %s %s.", predicament, 1228. surface(u.ux, u.uy)); 1229. } 1230. } else { 1231. #ifdef STEED 1232. if (u.usteed) 1233. pline("%s finally wiggles free.", 1234. upstart(y_monnam(u.usteed))); 1235. else 1236. #endif 1237. You("finally wiggle free."); 1238. } 1239. } else { 1240. if(flags.verbose) { 1241. predicament = "caught in a bear trap"; 1242. #ifdef STEED 1243. if (u.usteed) 1244. Norep("%s is %s.", upstart(y_monnam(u.usteed)), 1245. predicament); 1246. else 1247. #endif 1248. Norep("You are %s.", predicament); 1249. } 1250. if((u.dx && u.dy) || !rn2(5)) u.utrap--; 1251. } 1252. return; 1253. } 1254. 1255. if (!test_move(u.ux, u.uy, x-u.ux, y-u.uy, DO_MOVE)) { 1256. flags.move = 0; 1257. nomul(0); 1258. return; 1259. } 1260. 1261. /* Move ball and chain. */ 1262. if (Punished) 1263. if (!drag_ball(x,y, &bc_control, &ballx, &bally, &chainx, &chainy, 1264. &cause_delay, TRUE)) 1265. return; 1266. 1267. /* Check regions entering/leaving */ 1268. if (!in_out_region(x,y)) 1269. return; 1270. 1271. /* now move the hero */ 1272. mtmp = m_at(x, y); 1273. u.ux += u.dx; 1274. u.uy += u.dy; 1275. #ifdef STEED 1276. /* Move your steed, too */ 1277. if (u.usteed) { 1278. u.usteed->mx = u.ux; 1279. u.usteed->my = u.uy; 1280. exercise_steed(); 1281. } 1282. #endif 1283. 1284. /* 1285. * If safepet at destination then move the pet to the hero's 1286. * previous location using the same conditions as in attack(). 1287. * there are special extenuating circumstances: 1288. * (1) if the pet dies then your god angers, 1289. * (2) if the pet gets trapped then your god may disapprove, 1290. * (3) if the pet was already trapped and you attempt to free it 1291. * not only do you encounter the trap but you may frighten your 1292. * pet causing it to go wild! moral: don't abuse this privilege. 1293. * 1294. * Ceiling-hiding pets are skipped by this section of code, to 1295. * be caught by the normal falling-monster code. 1296. */ 1297. if (is_safepet(mtmp) && !(is_hider(mtmp->data) && mtmp->mundetected)) { 1298. /* if trapped, there's a chance the pet goes wild */ 1299. if (mtmp->mtrapped) { 1300. if (!rn2(mtmp->mtame)) { 1301. mtmp->mtame = mtmp->mpeaceful = mtmp->msleeping = 0; 1302. if (mtmp->mleashed) m_unleash(mtmp, TRUE); 1303. growl(mtmp); 1304. } else { 1305. yelp(mtmp); 1306. } 1307. } 1308. mtmp->mundetected = 0; 1309. if (mtmp->m_ap_type) seemimic(mtmp); 1310. else if (!mtmp->mtame) newsym(mtmp->mx, mtmp->my); 1311. 1312. if (mtmp->mtrapped && 1313. (trap = t_at(mtmp->mx, mtmp->my)) != 0 && 1314. (trap->ttyp == PIT || trap->ttyp == SPIKED_PIT) && 1315. sobj_at(BOULDER, trap->tx, trap->ty)) { 1316. /* can't swap places with pet pinned in a pit by a boulder */ 1317. u.ux = u.ux0, u.uy = u.uy0; /* didn't move after all */ 1318. } else if (u.ux0 != x && u.uy0 != y && 1319. bad_rock(mtmp->data, x, u.uy0) && 1320. bad_rock(mtmp->data, u.ux0, y) && 1321. (bigmonst(mtmp->data) || (curr_mon_load(mtmp) > 600))) { 1322. /* can't swap places when pet won't fit thru the opening */ 1323. u.ux = u.ux0, u.uy = u.uy0; /* didn't move after all */ 1324. You("stop. %s won't fit through.", upstart(y_monnam(mtmp))); 1325. } else { 1326. char pnambuf[BUFSZ]; 1327. 1328. /* save its current description in case of polymorph */ 1329. Strcpy(pnambuf, y_monnam(mtmp)); 1330. mtmp->mtrapped = 0; 1331. remove_monster(x, y); 1332. place_monster(mtmp, u.ux0, u.uy0); 1333. 1334. /* check for displacing it into pools and traps */ 1335. switch (minliquid(mtmp) ? 2 : mintrap(mtmp)) { 1336. case 0: 1337. You("%s %s.", mtmp->mtame ? "displaced" : "frightened", 1338. pnambuf); 1339. break; 1340. case 1: /* trapped */ 1341. case 3: /* changed levels */ 1342. /* there's already been a trap message, reinforce it */ 1343. abuse_dog(mtmp); 1344. adjalign(-3); 1345. break; 1346. case 2: 1347. /* it may have drowned or died. that's no way to 1348. * treat a pet! your god gets angry. 1349. */ 1350. if (rn2(4)) { 1351. You_feel("guilty about losing your pet like this."); 1352. u.ugangr++; 1353. adjalign(-15); 1354. } 1355. 1356. /* you killed your pet by direct action. 1357. * minliquid and mintrap don't know to do this 1358. */ 1359. u.uconduct.killer++; 1360. break; 1361. default: 1362. pline("that's strange, unknown mintrap result!"); 1363. break; 1364. } 1365. } 1366. } 1367. 1368. reset_occupations(); 1369. if (flags.run) { 1370. if ( flags.run < 8 ) 1371. if (IS_DOOR(tmpr->typ) || IS_ROCK(tmpr->typ) || 1372. IS_FURNITURE(tmpr->typ)) 1373. nomul(0); 1374. } 1375. 1376. if (hides_under(youmonst.data)) 1377. u.uundetected = OBJ_AT(u.ux, u.uy); 1378. else if (youmonst.data->mlet == S_EEL) 1379. u.uundetected = is_pool(u.ux, u.uy) && !Is_waterlevel(&u.uz); 1380. else if (u.dx || u.dy) 1381. u.uundetected = 0; 1382. 1383. /* 1384. * Mimics (or whatever) become noticeable if they move and are 1385. * imitating something that doesn't move. We could extend this 1386. * to non-moving monsters... 1387. */ 1388. if ((u.dx || u.dy) && (youmonst.m_ap_type == M_AP_OBJECT 1389. || youmonst.m_ap_type == M_AP_FURNITURE)) 1390. youmonst.m_ap_type = M_AP_NOTHING; 1391. 1392. check_leash(u.ux0,u.uy0); 1393. 1394. if(u.ux0 != u.ux || u.uy0 != u.uy) { 1395. u.umoved = TRUE; 1396. /* Clean old position -- vision_recalc() will print our new one. */ 1397. newsym(u.ux0,u.uy0); 1398. /* Since the hero has moved, adjust what can be seen/unseen. */ 1399. vision_recalc(1); /* Do the work now in the recover time. */ 1400. invocation_message(); 1401. } 1402. 1403. if (Punished) /* put back ball and chain */ 1404. move_bc(0,bc_control,ballx,bally,chainx,chainy); 1405. 1406. spoteffects(TRUE); 1407. 1408. /* delay next move because of ball dragging */ 1409. /* must come after we finished picking up, in spoteffects() */ 1410. if (cause_delay) { 1411. nomul(-2); 1412. nomovemsg = ""; 1413. } 1414. 1415. if (flags.run && iflags.runmode != RUN_TPORT) { 1416. /* display every step or every 7th step depending upon mode */ 1417. if (iflags.runmode != RUN_LEAP || !(moves % 7L)) { 1418. if (flags.time) flags.botl = 1; 1419. curs_on_u(); 1420. delay_output(); 1421. if (iflags.runmode == RUN_CRAWL) { 1422. delay_output(); 1423. delay_output(); 1424. delay_output(); 1425. delay_output(); 1426. } 1427. } 1428. } 1429. } 1430.
invocation_message[]
1431. void 1432. invocation_message() 1433. { 1434. /* a special clue-msg when on the Invocation position */ 1435. if(invocation_pos(u.ux, u.uy) && !On_stairs(u.ux, u.uy)) { 1436. char buf[BUFSZ]; 1437. struct obj *otmp = carrying(CANDELABRUM_OF_INVOCATION); 1438. 1439. nomul(0); /* stop running or travelling */ 1440. #ifdef STEED 1441. if (u.usteed) Sprintf(buf, "beneath %s", y_monnam(u.usteed)); 1442. else 1443. #endif 1444. if (Levitation || Flying) Strcpy(buf, "beneath you"); 1445. else Sprintf(buf, "under your %s", makeplural(body_part(FOOT))); 1446. 1447. You_feel("a strange vibration %s.", buf); 1448. if (otmp && otmp->spe == 7 && otmp->lamplit) 1449. pline("%s %s!", The(xname(otmp)), 1450. Blind ? "throbs palpably" : "glows with a strange light"); 1451. } 1452. } 1453. 1454. #endif /* OVL3 */
spoteffects[]
1455. #ifdef OVL2 1456. 1457. void 1458. spoteffects(pick) 1459. boolean pick; 1460. { 1461. register struct monst *mtmp; 1462. 1463. if(u.uinwater) { 1464. int was_underwater; 1465. 1466. if (!is_pool(u.ux,u.uy)) { 1467. if (Is_waterlevel(&u.uz)) 1468. You("pop into an air bubble."); 1469. else if (is_lava(u.ux, u.uy)) 1470. You("leave the water..."); /* oops! */ 1471. else 1472. You("are on solid %s again.", 1473. is_ice(u.ux, u.uy) ? "ice" : "land"); 1474. } 1475. else if (Is_waterlevel(&u.uz)) 1476. goto stillinwater; 1477. else if (Levitation) 1478. You("pop out of the water like a cork!"); 1479. else if (Flying) 1480. You("fly out of the water."); 1481. else if (Wwalking) 1482. You("slowly rise above the surface."); 1483. else 1484. goto stillinwater; 1485. was_underwater = Underwater && !Is_waterlevel(&u.uz); 1486. u.uinwater = 0; /* leave the water */ 1487. if (was_underwater) { /* restore vision */ 1488. docrt(); 1489. vision_full_recalc = 1; 1490. } 1491. } 1492. stillinwater:; 1493. if (!Levitation && !u.ustuck && !Flying) { 1494. /* limit recursive calls through teleds() */ 1495. if (is_pool(u.ux, u.uy) || is_lava(u.ux, u.uy)) { 1496. #ifdef STEED 1497. if (u.usteed && !is_flyer(u.usteed->data) && 1498. !is_floater(u.usteed->data) && 1499. !is_clinger(u.usteed->data)) { 1500. dismount_steed(Underwater ? 1501. DISMOUNT_FELL : DISMOUNT_GENERIC); 1502. /* dismount_steed() -> float_down() -> pickup() */ 1503. if (!Is_airlevel(&u.uz) && !Is_waterlevel(&u.uz)) 1504. pick = FALSE; 1505. } else 1506. #endif 1507. if (is_lava(u.ux, u.uy)) { 1508. if (lava_effects()) return; 1509. } else if (!Wwalking && drown()) 1510. return; 1511. } 1512. } 1513. check_special_room(FALSE); 1514. #ifdef SINKS 1515. if(IS_SINK(levl[u.ux][u.uy].typ) && Levitation) 1516. dosinkfall(); 1517. #endif 1518. if (!in_steed_dismounting) { /* if dismounting, we'll check again later */ 1519. struct trap *trap = t_at(u.ux, u.uy); 1520. boolean pit; 1521. pit = (trap && (trap->ttyp == PIT || trap->ttyp == SPIKED_PIT)); 1522. if (trap && pit) 1523. dotrap(trap, 0); /* fall into pit */ 1524. if (pick) (void) pickup(1); 1525. if (trap && !pit) 1526. dotrap(trap, 0); /* fall into arrow trap, etc. */ 1527. } 1528. if((mtmp = m_at(u.ux, u.uy)) && !u.uswallow) { 1529. mtmp->mundetected = mtmp->msleeping = 0; 1530. switch(mtmp->data->mlet) { 1531. case S_PIERCER: 1532. pline("%s suddenly drops from the %s!", 1533. Amonnam(mtmp), ceiling(u.ux,u.uy)); 1534. if(mtmp->mtame) /* jumps to greet you, not attack */ 1535. ; 1536. else if(uarmh && is_metallic(uarmh)) 1537. pline("Its blow glances off your helmet."); 1538. else if (u.uac + 3 <= rnd(20)) 1539. You("are almost hit by %s!", 1540. x_monnam(mtmp, ARTICLE_A, "falling", 0, TRUE)); 1541. else { 1542. int dmg; 1543. You("are hit by %s!", 1544. x_monnam(mtmp, ARTICLE_A, "falling", 0, TRUE)); 1545. dmg = d(4,6); 1546. if(Half_physical_damage) dmg = (dmg+1) / 2; 1547. mdamageu(mtmp, dmg); 1548. } 1549. break; 1550. default: /* monster surprises you. */ 1551. if(mtmp->mtame) 1552. pline("%s jumps near you from the %s.", 1553. Amonnam(mtmp), ceiling(u.ux,u.uy)); 1554. else if(mtmp->mpeaceful) { 1555. You("surprise %s!", 1556. Blind && !sensemon(mtmp) ? 1557. something : a_monnam(mtmp)); 1558. mtmp->mpeaceful = 0; 1559. } else 1560. pline("%s attacks you by surprise!", 1561. Amonnam(mtmp)); 1562. break; 1563. } 1564. mnexto(mtmp); /* have to move the monster */ 1565. } 1566. } 1567.
monstinroom[]
1568. STATIC_OVL boolean 1569. monstinroom(mdat,roomno) 1570. struct permonst *mdat; 1571. int roomno; 1572. { 1573. register struct monst *mtmp; 1574. 1575. for(mtmp = fmon; mtmp; mtmp = mtmp->nmon) 1576. if(!DEADMONSTER(mtmp) && mtmp->data == mdat && 1577. index(in_rooms(mtmp->mx, mtmp->my, 0), roomno + ROOMOFFSET)) 1578. return(TRUE); 1579. return(FALSE); 1580. } 1581.
in_rooms[]
in_rooms() takes three parameters, an x,y coordinate and a room type, and returns a string of chars, which will contain indexes to rooms-array (adjusted by ROOMOFFSET). The x,y location is in the rooms pointed to by those characters. If the location is not in any room, a zero-length string is returned.
For example, the following code tells the player the size of one of the shops he is in:
char roomlst = *in_rooms(u.ux, u.uy, SHOPBASE);
if (roomlst && roomlst[0] >= ROOMOFFSET) {
int rmno = roomlst[0] - ROOMOFFSET;
pline("Shop size: %i,%i", rooms[rmno].hx - rooms[rmno].lx + 1, rooms[rmno].hy - rooms[rmno].ly + 1);
}
1582. char * 1583. in_rooms(x, y, typewanted) 1584. register xchar x, y; 1585. register int typewanted; 1586. { 1587. static char buf[5]; 1588. char rno, *ptr = &buf[4]; 1589. int typefound, min_x, min_y, max_x, max_y_offset, step; 1590. register struct rm *lev; 1591. 1592. #define goodtype(rno) (!typewanted || \ 1593. ((typefound = rooms[rno - ROOMOFFSET].rtype) == typewanted) || \ 1594. ((typewanted == SHOPBASE) && (typefound > SHOPBASE))) \ 1595. 1596. switch (rno = levl[x][y].roomno) { 1597. case NO_ROOM: 1598. return(ptr); 1599. case SHARED: 1600. step = 2; 1601. break; 1602. case SHARED_PLUS: 1603. step = 1; 1604. break; 1605. default: /* i.e. a regular room # */ 1606. if (goodtype(rno)) 1607. *(--ptr) = rno; 1608. return(ptr); 1609. } 1610. 1611. min_x = x - 1; 1612. max_x = x + 1; 1613. if (x < 1) 1614. min_x += step; 1615. else 1616. if (x >= COLNO) 1617. max_x -= step; 1618. 1619. min_y = y - 1; 1620. max_y_offset = 2; 1621. if (min_y < 0) { 1622. min_y += step; 1623. max_y_offset -= step; 1624. } else 1625. if ((min_y + max_y_offset) >= ROWNO) 1626. max_y_offset -= step; 1627. 1628. for (x = min_x; x <= max_x; x += step) { 1629. lev = &levl[x][min_y]; 1630. y = 0; 1631. if (((rno = lev[y].roomno) >= ROOMOFFSET) && 1632. !index(ptr, rno) && goodtype(rno)) 1633. *(--ptr) = rno; 1634. y += step; 1635. if (y > max_y_offset) 1636. continue; 1637. if (((rno = lev[y].roomno) >= ROOMOFFSET) && 1638. !index(ptr, rno) && goodtype(rno)) 1639. *(--ptr) = rno; 1640. y += step; 1641. if (y > max_y_offset) 1642. continue; 1643. if (((rno = lev[y].roomno) >= ROOMOFFSET) && 1644. !index(ptr, rno) && goodtype(rno)) 1645. *(--ptr) = rno; 1646. } 1647. return(ptr); 1648. } 1649.
in_town[]
1650. /* is (x,y) in a town? */ 1651. boolean 1652. in_town(x, y) 1653. register int x, y; 1654. { 1655. s_level *slev = Is_special(&u.uz); 1656. register struct mkroom *sroom; 1657. boolean has_subrooms = FALSE; 1658. 1659. if (!slev || !slev->flags.town) return FALSE; 1660. 1661. /* 1662. * See if (x,y) is in a room with subrooms, if so, assume it's the 1663. * town. If there are no subrooms, the whole level is in town. 1664. */ 1665. for (sroom = &rooms[0]; sroom->hx > 0; sroom++) { 1666. if (sroom->nsubrooms > 0) { 1667. has_subrooms = TRUE; 1668. if (inside_room(sroom, x, y)) return TRUE; 1669. } 1670. } 1671. 1672. return !has_subrooms; 1673. } 1674.
move_update[]
1675. STATIC_OVL void 1676. move_update(newlev) 1677. register boolean newlev; 1678. { 1679. char *ptr1, *ptr2, *ptr3, *ptr4; 1680. 1681. Strcpy(u.urooms0, u.urooms); 1682. Strcpy(u.ushops0, u.ushops); 1683. if (newlev) { 1684. u.urooms[0] = '\0'; 1685. u.uentered[0] = '\0'; 1686. u.ushops[0] = '\0'; 1687. u.ushops_entered[0] = '\0'; 1688. Strcpy(u.ushops_left, u.ushops0); 1689. return; 1690. } 1691. Strcpy(u.urooms, in_rooms(u.ux, u.uy, 0)); 1692. 1693. for (ptr1 = &u.urooms[0], 1694. ptr2 = &u.uentered[0], 1695. ptr3 = &u.ushops[0], 1696. ptr4 = &u.ushops_entered[0]; 1697. *ptr1; ptr1++) { 1698. if (!index(u.urooms0, *ptr1)) 1699. *(ptr2++) = *ptr1; 1700. if (IS_SHOP(*ptr1 - ROOMOFFSET)) { 1701. *(ptr3++) = *ptr1; 1702. if (!index(u.ushops0, *ptr1)) 1703. *(ptr4++) = *ptr1; 1704. } 1705. } 1706. *ptr2 = '\0'; 1707. *ptr3 = '\0'; 1708. *ptr4 = '\0'; 1709. 1710. /* filter u.ushops0 -> u.ushops_left */ 1711. for (ptr1 = &u.ushops0[0], ptr2 = &u.ushops_left[0]; *ptr1; ptr1++) 1712. if (!index(u.ushops, *ptr1)) 1713. *(ptr2++) = *ptr1; 1714. *ptr2 = '\0'; 1715. } 1716.
check_special_room[]
1717. void 1718. check_special_room(newlev) 1719. register boolean newlev; 1720. { 1721. register struct monst *mtmp; 1722. char *ptr; 1723. 1724. move_update(newlev); 1725. 1726. if (*u.ushops0) 1727. u_left_shop(u.ushops_left, newlev); 1728. 1729. if (!*u.uentered && !*u.ushops_entered) /* implied by newlev */ 1730. return; /* no entrance messages necessary */ 1731. 1732. /* Did we just enter a shop? */ 1733. if (*u.ushops_entered) 1734. u_entered_shop(u.ushops_entered); 1735. 1736. for (ptr = &u.uentered[0]; *ptr; ptr++) { 1737. register int roomno = *ptr - ROOMOFFSET, rt = rooms[roomno].rtype; 1738. 1739. /* Did we just enter some other special room? */ 1740. /* vault.c insists that a vault remain a VAULT, 1741. * and temples should remain TEMPLEs, 1742. * but everything else gives a message only the first time */ 1743. switch (rt) { 1744. case ZOO: 1745. pline("Welcome to David's treasure zoo!"); 1746. break; 1747. case SWAMP: 1748. pline("It %s rather %s down here.", 1749. Blind ? "feels" : "looks", 1750. Blind ? "humid" : "muddy"); 1751. break; 1752. case COURT: 1753. You("enter an opulent throne room!"); 1754. break; 1755. case LEPREHALL: 1756. You("enter a leprechaun hall!"); 1757. break; 1758. case MORGUE: 1759. if(midnight()) { 1760. const char *run = locomotion(youmonst.data, "Run"); 1761. pline("%s away! %s away!", run, run); 1762. } else 1763. You("have an uncanny feeling..."); 1764. break; 1765. case BEEHIVE: 1766. You("enter a giant beehive!"); 1767. break; 1768. case COCKNEST: 1769. You("enter a disgusting nest!"); 1770. break; 1771. case ANTHOLE: 1772. You("enter an anthole!"); 1773. break; 1774. case BARRACKS: 1775. if(monstinroom(&mons[PM_SOLDIER], roomno) || 1776. monstinroom(&mons[PM_SERGEANT], roomno) || 1777. monstinroom(&mons[PM_LIEUTENANT], roomno) || 1778. monstinroom(&mons[PM_CAPTAIN], roomno)) 1779. You("enter a military barracks!"); 1780. else 1781. You("enter an abandoned barracks."); 1782. break; 1783. case DELPHI: 1784. if(monstinroom(&mons[PM_ORACLE], roomno)) 1785. verbalize("%s, %s, welcome to Delphi!", 1786. Hello((struct monst *) 0), plname); 1787. break; 1788. case TEMPLE: 1789. intemple(roomno + ROOMOFFSET); 1790. /* fall through */ 1791. default: 1792. rt = 0; 1793. } 1794. 1795. if (rt != 0) { 1796. rooms[roomno].rtype = OROOM; 1797. if (!search_special(rt)) { 1798. /* No more room of that type */ 1799. switch(rt) { 1800. case COURT: 1801. level.flags.has_court = 0; 1802. break; 1803. case SWAMP: 1804. level.flags.has_swamp = 0; 1805. break; 1806. case MORGUE: 1807. level.flags.has_morgue = 0; 1808. break; 1809. case ZOO: 1810. level.flags.has_zoo = 0; 1811. break; 1812. case BARRACKS: 1813. level.flags.has_barracks = 0; 1814. break; 1815. case TEMPLE: 1816. level.flags.has_temple = 0; 1817. break; 1818. case BEEHIVE: 1819. level.flags.has_beehive = 0; 1820. break; 1821. } 1822. } 1823. if (rt == COURT || rt == SWAMP || rt == MORGUE || rt == ZOO) 1824. for(mtmp = fmon; mtmp; mtmp = mtmp->nmon) 1825. if (!DEADMONSTER(mtmp) && !Stealth && !rn2(3)) mtmp->msleeping = 0; 1826. } 1827. } 1828. 1829. return; 1830. } 1831. 1832. #endif /* OVL2 */
dopickup[]
1833. #ifdef OVLB 1834. 1835. int 1836. dopickup() 1837. { 1838. int count; 1839. struct trap *traphere = t_at(u.ux, u.uy); 1840. /* awful kludge to work around parse()'s pre-decrement */ 1841. count = (multi || (save_cm && *save_cm == ',')) ? multi + 1 : 0; 1842. multi = 0; /* always reset */ 1843. /* uswallow case added by GAN 01/29/87 */ 1844. if(u.uswallow) { 1845. if (!u.ustuck->minvent) { 1846. if (is_animal(u.ustuck->data)) { 1847. You("pick up %s tongue.", s_suffix(mon_nam(u.ustuck))); 1848. pline("But it's kind of slimy, so you drop it."); 1849. } else 1850. You("don't %s anything in here to pick up.", 1851. Blind ? "feel" : "see"); 1852. return(1); 1853. } else { 1854. int tmpcount = -count; 1855. return loot_mon(u.ustuck, &tmpcount, (boolean *)0); 1856. } 1857. } 1858. if(is_pool(u.ux, u.uy)) { 1859. if (Wwalking || is_floater(youmonst.data) || is_clinger(youmonst.data) 1860. || (Flying && !Breathless)) { 1861. You("cannot dive into the water to pick things up."); 1862. return(0); 1863. } else if (!Underwater) { 1864. You_cant("even see the bottom, let alone pick up %s.", 1865. something); 1866. return(0); 1867. } 1868. } 1869. if (is_lava(u.ux, u.uy)) { 1870. if (Wwalking || is_floater(youmonst.data) || is_clinger(youmonst.data) 1871. || (Flying && !Breathless)) { 1872. You_cant("reach the bottom to pick things up."); 1873. return(0); 1874. } else if (!likes_lava(youmonst.data)) { 1875. You("would burn to a crisp trying to pick things up."); 1876. return(0); 1877. } 1878. } 1879. if(!OBJ_AT(u.ux, u.uy)) { 1880. There("is nothing here to pick up."); 1881. return(0); 1882. } 1883. if (!can_reach_floor()) { 1884. #ifdef STEED 1885. if (u.usteed && P_SKILL(P_RIDING) < P_BASIC) 1886. You("aren't skilled enough to reach from %s.", 1887. y_monnam(u.usteed)); 1888. else 1889. #endif 1890. You("cannot reach the %s.", surface(u.ux,u.uy)); 1891. return(0); 1892. } 1893. 1894. if (traphere && traphere->tseen) { 1895. /* Allow pickup from holes and trap doors that you escaped from 1896. * because that stuff is teetering on the edge just like you, but 1897. * not pits, because there is an elevation discrepancy with stuff 1898. * in pits. 1899. */ 1900. if ((traphere->ttyp == PIT || traphere->ttyp == SPIKED_PIT) && 1901. (!u.utrap || (u.utrap && u.utraptype != TT_PIT))) { 1902. You("cannot reach the bottom of the pit."); 1903. return(0); 1904. } 1905. } 1906. 1907. return (pickup(-count)); 1908. } 1909. 1910. #endif /* OVLB */
lookaround[]
1911. #ifdef OVL2 1912. 1913. /* stop running if we see something interesting */ 1914. /* turn around a corner if that is the only way we can proceed */ 1915. /* do not turn left or right twice */ 1916. void 1917. lookaround() 1918. { 1919. register int x, y, i, x0 = 0, y0 = 0, m0 = 1, i0 = 9; 1920. register int corrct = 0, noturn = 0; 1921. register struct monst *mtmp; 1922. register struct trap *trap; 1923. 1924. /* Grid bugs stop if trying to move diagonal, even if blind. Maybe */ 1925. /* they polymorphed while in the middle of a long move. */ 1926. if (u.umonnum == PM_GRID_BUG && u.dx && u.dy) { 1927. nomul(0); 1928. return; 1929. } 1930. 1931. if(Blind || flags.run == 0) return; 1932. for(x = u.ux-1; x <= u.ux+1; x++) for(y = u.uy-1; y <= u.uy+1; y++) { 1933. if(!isok(x,y)) continue; 1934. 1935. if(u.umonnum == PM_GRID_BUG && x != u.ux && y != u.uy) continue; 1936. 1937. if(x == u.ux && y == u.uy) continue; 1938. 1939. if((mtmp = m_at(x,y)) && 1940. mtmp->m_ap_type != M_AP_FURNITURE && 1941. mtmp->m_ap_type != M_AP_OBJECT && 1942. (!mtmp->minvis || See_invisible) && !mtmp->mundetected) { 1943. if((flags.run != 1 && !mtmp->mtame) 1944. || (x == u.ux+u.dx && y == u.uy+u.dy)) 1945. goto stop; 1946. } 1947. 1948. if (levl[x][y].typ == STONE) continue; 1949. if (x == u.ux-u.dx && y == u.uy-u.dy) continue; 1950. 1951. if (IS_ROCK(levl[x][y].typ) || (levl[x][y].typ == ROOM) || 1952. IS_AIR(levl[x][y].typ)) 1953. continue; 1954. else if (closed_door(x,y) || 1955. (mtmp && mtmp->m_ap_type == M_AP_FURNITURE && 1956. (mtmp->mappearance == S_hcdoor || 1957. mtmp->mappearance == S_vcdoor))) { 1958. if(x != u.ux && y != u.uy) continue; 1959. if(flags.run != 1) goto stop; 1960. goto bcorr; 1961. } else if (levl[x][y].typ == CORR) { 1962. bcorr: 1963. if(levl[u.ux][u.uy].typ != ROOM) { 1964. if(flags.run == 1 || flags.run == 3 || flags.run == 8) { 1965. i = dist2(x,y,u.ux+u.dx,u.uy+u.dy); 1966. if(i > 2) continue; 1967. if(corrct == 1 && dist2(x,y,x0,y0) != 1) 1968. noturn = 1; 1969. if(i < i0) { 1970. i0 = i; 1971. x0 = x; 1972. y0 = y; 1973. m0 = mtmp ? 1 : 0; 1974. } 1975. } 1976. corrct++; 1977. } 1978. continue; 1979. } else if ((trap = t_at(x,y)) && trap->tseen) { 1980. if(flags.run == 1) goto bcorr; /* if you must */ 1981. if(x == u.ux+u.dx && y == u.uy+u.dy) goto stop; 1982. continue; 1983. } else if (is_pool(x,y) || is_lava(x,y)) { 1984. /* water and lava only stop you if directly in front, and stop 1985. * you even if you are running 1986. */ 1987. if(!Levitation && !Flying && !is_clinger(youmonst.data) && 1988. x == u.ux+u.dx && y == u.uy+u.dy) 1989. /* No Wwalking check; otherwise they'd be able 1990. * to test boots by trying to SHIFT-direction 1991. * into a pool and seeing if the game allowed it 1992. */ 1993. goto stop; 1994. continue; 1995. } else { /* e.g. objects or trap or stairs */ 1996. if(flags.run == 1) goto bcorr; 1997. if(flags.run == 8) continue; 1998. if(mtmp) continue; /* d */ 1999. if(((x == u.ux - u.dx) && (y != u.uy + u.dy)) || 2000. ((y == u.uy - u.dy) && (x != u.ux + u.dx))) 2001. continue; 2002. } 2003. stop: 2004. nomul(0); 2005. return; 2006. } /* end for loops */ 2007. 2008. if(corrct > 1 && flags.run == 2) goto stop; 2009. if((flags.run == 1 || flags.run == 3 || flags.run == 8) && 2010. !noturn && !m0 && i0 && (corrct == 1 || (corrct == 2 && i0 == 1))) 2011. { 2012. /* make sure that we do not turn too far */ 2013. if(i0 == 2) { 2014. if(u.dx == y0-u.uy && u.dy == u.ux-x0) 2015. i = 2; /* straight turn right */ 2016. else 2017. i = -2; /* straight turn left */ 2018. } else if(u.dx && u.dy) { 2019. if((u.dx == u.dy && y0 == u.uy) || (u.dx != u.dy && y0 != u.uy)) 2020. i = -1; /* half turn left */ 2021. else 2022. i = 1; /* half turn right */ 2023. } else { 2024. if((x0-u.ux == y0-u.uy && !u.dy) || (x0-u.ux != y0-u.uy && u.dy)) 2025. i = 1; /* half turn right */ 2026. else 2027. i = -1; /* half turn left */ 2028. } 2029. 2030. i += u.last_str_turn; 2031. if(i <= 2 && i >= -2) { 2032. u.last_str_turn = i; 2033. u.dx = x0-u.ux; 2034. u.dy = y0-u.uy; 2035. } 2036. } 2037. } 2038.
monster_nearby[]
2039. /* something like lookaround, but we are not running */ 2040. /* react only to monsters that might hit us */ 2041. int 2042. monster_nearby() 2043. { 2044. register int x,y; 2045. register struct monst *mtmp; 2046. 2047. /* Also see the similar check in dochugw() in monmove.c */ 2048. for(x = u.ux-1; x <= u.ux+1; x++) 2049. for(y = u.uy-1; y <= u.uy+1; y++) { 2050. if(!isok(x,y)) continue; 2051. if(x == u.ux && y == u.uy) continue; 2052. if((mtmp = m_at(x,y)) && 2053. mtmp->m_ap_type != M_AP_FURNITURE && 2054. mtmp->m_ap_type != M_AP_OBJECT && 2055. (!mtmp->mpeaceful || Hallucination) && 2056. (!is_hider(mtmp->data) || !mtmp->mundetected) && 2057. !noattacks(mtmp->data) && 2058. mtmp->mcanmove && !mtmp->msleeping && /* aplvax!jcn */ 2059. !onscary(u.ux, u.uy, mtmp) && 2060. canspotmon(mtmp)) 2061. return(1); 2062. } 2063. return(0); 2064. } 2065.
nomul[]
nomul() takes one parameter, a negative value, a number of turns to wait. This is used when the hero does some action that takes multiple turns to complete. For example, to wait 3 turns: nomul(-3);
If the parameter is 0, then the currently active multiturn action is "cancelled" and player will be able to act on the next turn.
2066. void 2067. nomul(nval) 2068. register int nval; 2069. { 2070. if(multi < nval) return; /* This is a bug fix by ab@unido */ 2071. u.uinvulnerable = FALSE; /* Kludge to avoid ctrl-C bug -dlc */ 2072. u.usleep = 0; 2073. multi = nval; 2074. flags.travel = iflags.travel1 = flags.mv = flags.run = 0; 2075. } 2076.
unmul[]
2077. /* called when a non-movement, multi-turn action has completed */ 2078. void 2079. unmul(msg_override) 2080. const char *msg_override; 2081. { 2082. multi = 0; /* caller will usually have done this already */ 2083. if (msg_override) nomovemsg = msg_override; 2084. else if (!nomovemsg) nomovemsg = You_can_move_again; 2085. if (*nomovemsg) pline(nomovemsg); 2086. nomovemsg = 0; 2087. u.usleep = 0; 2088. if (afternmv) (*afternmv)(); 2089. afternmv = 0; 2090. } 2091. 2092. #endif /* OVL2 */
maybe_wail[]
2093. #ifdef OVL1 2094. 2095. STATIC_OVL void 2096. maybe_wail() 2097. { 2098. static short powers[] = { TELEPORT, SEE_INVIS, POISON_RES, COLD_RES, 2099. SHOCK_RES, FIRE_RES, SLEEP_RES, DISINT_RES, 2100. TELEPORT_CONTROL, STEALTH, FAST, INVIS }; 2101. 2102. if (moves <= wailmsg + 50) return; 2103. 2104. wailmsg = moves; 2105. if (Role_if(PM_WIZARD) || Race_if(PM_ELF) || Role_if(PM_VALKYRIE)) { 2106. const char *who; 2107. int i, powercnt; 2108. 2109. who = (Role_if(PM_WIZARD) || Role_if(PM_VALKYRIE)) ? 2110. urole.name.m : "Elf"; 2111. if (u.uhp == 1) { 2112. pline("%s is about to die.", who); 2113. } else { 2114. for (i = 0, powercnt = 0; i < SIZE(powers); ++i) 2115. if (u.uprops[powers[i]].intrinsic & INTRINSIC) ++powercnt; 2116. 2117. pline(powercnt >= 4 ? "%s, all your powers will be lost..." 2118. : "%s, your life force is running out.", who); 2119. } 2120. } else { 2121. You_hear(u.uhp == 1 ? "the wailing of the Banshee..." 2122. : "the howling of the CwnAnnwn..."); 2123. } 2124. } 2125.
losehp[]
losehp() takes 3 parameters, damage, killer string and killer format. damage is an integer value, and hero will be dealt that much damage. If this kills the hero, then the killer string will be used as the death reason, and killer format will define how the killer string is used. Killer string is one of KILLED_BY_AN, KILLED_BY or NO_KILLER_PREFIX. For example:
losehp(rnd(30), "system shock", KILLED_BY_AN);
2126. void 2127. losehp(n, knam, k_format) 2128. register int n; 2129. register const char *knam; 2130. boolean k_format; 2131. { 2132. if (Upolyd) { 2133. u.mh -= n; 2134. if (u.mhmax < u.mh) u.mhmax = u.mh; 2135. flags.botl = 1; 2136. if (u.mh < 1) 2137. rehumanize(); 2138. else if (n > 0 && u.mh*10 < u.mhmax && Unchanging) 2139. maybe_wail(); 2140. return; 2141. } 2142. 2143. u.uhp -= n; 2144. if(u.uhp > u.uhpmax) 2145. u.uhpmax = u.uhp; /* perhaps n was negative */ 2146. flags.botl = 1; 2147. if(u.uhp < 1) { 2148. killer_format = k_format; 2149. killer = knam; /* the thing that killed you */ 2150. You("die..."); 2151. done(DIED); 2152. } else if (n > 0 && u.uhp*10 < u.uhpmax) { 2153. maybe_wail(); 2154. } 2155. } 2156.
weight_cap[]
2157. int 2158. weight_cap() 2159. { 2160. register long carrcap; 2161. 2162. carrcap = 25*(ACURRSTR + ACURR(A_CON)) + 50; 2163. if (Upolyd) { 2164. /* consistent with can_carry() in mon.c */ 2165. if (youmonst.data->mlet == S_NYMPH) 2166. carrcap = MAX_CARR_CAP; 2167. else if (!youmonst.data->cwt) 2168. carrcap = (carrcap * (long)youmonst.data->msize) / MZ_HUMAN; 2169. else if (!strongmonst(youmonst.data) 2170. || (strongmonst(youmonst.data) && (youmonst.data->cwt > WT_HUMAN))) 2171. carrcap = (carrcap * (long)youmonst.data->cwt / WT_HUMAN); 2172. } 2173. 2174. if (Levitation || Is_airlevel(&u.uz) /* pugh@cornell */ 2175. #ifdef STEED 2176. || (u.usteed && strongmonst(u.usteed->data)) 2177. #endif 2178. ) 2179. carrcap = MAX_CARR_CAP; 2180. else { 2181. if(carrcap > MAX_CARR_CAP) carrcap = MAX_CARR_CAP; 2182. if (!Flying) { 2183. if(EWounded_legs & LEFT_SIDE) carrcap -= 100; 2184. if(EWounded_legs & RIGHT_SIDE) carrcap -= 100; 2185. } 2186. if (carrcap < 0) carrcap = 0; 2187. } 2188. return((int) carrcap); 2189. } 2190.
inv_weight[]
2191. static int wc; /* current weight_cap(); valid after call to inv_weight() */ 2192. 2193. /* returns how far beyond the normal capacity the player is currently. */ 2194. /* inv_weight() is negative if the player is below normal capacity. */ 2195. int 2196. inv_weight() 2197. { 2198. register struct obj *otmp = invent; 2199. register int wt = 0; 2200. 2201. #ifndef GOLDOBJ 2202. /* when putting stuff into containers, gold is inserted at the head 2203. of invent for easier manipulation by askchain & co, but it's also 2204. retained in u.ugold in order to keep the status line accurate; we 2205. mustn't add its weight in twice under that circumstance */ 2206. wt = (otmp && otmp->oclass == COIN_CLASS) ? 0 : 2207. (int)((u.ugold + 50L) / 100L); 2208. #endif 2209. while (otmp) { 2210. #ifndef GOLDOBJ 2211. if (otmp->otyp != BOULDER || !throws_rocks(youmonst.data)) 2212. #else 2213. if (otmp->oclass == COIN_CLASS) 2214. wt += (int)(((long)otmp->quan + 50L) / 100L); 2215. else if (otmp->otyp != BOULDER || !throws_rocks(youmonst.data)) 2216. #endif 2217. wt += otmp->owt; 2218. otmp = otmp->nobj; 2219. } 2220. wc = weight_cap(); 2221. return (wt - wc); 2222. } 2223.
calc_capacity[]
2224. /* 2225. * Returns 0 if below normal capacity, or the number of "capacity units" 2226. * over the normal capacity the player is loaded. Max is 5. 2227. */ 2228. int 2229. calc_capacity(xtra_wt) 2230. int xtra_wt; 2231. { 2232. int cap, wt = inv_weight() + xtra_wt; 2233. 2234. if (wt <= 0) return UNENCUMBERED; 2235. if (wc <= 1) return OVERLOADED; 2236. cap = (wt*2 / wc) + 1; 2237. return min(cap, OVERLOADED); 2238. } 2239.
near_capacity[]
2240. int 2241. near_capacity() 2242. { 2243. return calc_capacity(0); 2244. } 2245.
max_capacity[]
2246. int 2247. max_capacity() 2248. { 2249. int wt = inv_weight(); 2250. 2251. return (wt - (2 * wc)); 2252. } 2253.
check_capacity[]
2254. boolean 2255. check_capacity(str) 2256. const char *str; 2257. { 2258. if(near_capacity() >= EXT_ENCUMBER) { 2259. if(str) 2260. pline(str); 2261. else 2262. You_cant("do that while carrying so much stuff."); 2263. return 1; 2264. } 2265. return 0; 2266. } 2267. 2268. #endif /* OVL1 */
inv_cnt[]
2269. #ifdef OVLB 2270. 2271. int 2272. inv_cnt() 2273. { 2274. register struct obj *otmp = invent; 2275. register int ct = 0; 2276. 2277. while(otmp){ 2278. ct++; 2279. otmp = otmp->nobj; 2280. } 2281. return(ct); 2282. } 2283.
money_cnt[]
2284. #ifdef GOLDOBJ 2285. /* Counts the money in an object chain. */ 2286. /* Intended use is for your or some monsters inventory, */ 2287. /* now that u.gold/m.gold is gone.*/ 2288. /* Counting money in a container might be possible too. */ 2289. long 2290. money_cnt(otmp) 2291. struct obj *otmp; 2292. { 2293. while(otmp) { 2294. /* Must change when silver & copper is implemented: */ 2295. if (otmp->oclass == COIN_CLASS) return otmp->quan; 2296. otmp = otmp->nobj; 2297. } 2298. return 0; 2299. } 2300. #endif 2301. #endif /* OVLB */ 2302. 2303. /*hack.c*/