Source:NetHack 3.4.0/pager.c
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Below is the full text to pager.c from the source code of NetHack 3.4.0. To link to a particular line, write [[NetHack 3.4.0/pager.c#line123]], for example.
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1. /* SCCS Id: @(#)pager.c 3.4 2002/01/17 */ 2. /* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */ 3. /* NetHack may be freely redistributed. See license for details. */ 4. 5. /* This file contains the command routines dowhatis() and dohelp() and */ 6. /* a few other help related facilities */ 7. 8. #include "hack.h" 9. #include "dlb.h" 10. 11. STATIC_DCL boolean FDECL(is_swallow_sym, (int)); 12. STATIC_DCL int FDECL(append_str, (char *, const char *)); 13. STATIC_DCL struct permonst * FDECL(lookat, (int, int, char *, char *)); 14. STATIC_DCL void FDECL(checkfile, 15. (char *,struct permonst *,BOOLEAN_P,BOOLEAN_P)); 16. STATIC_DCL int FDECL(do_look, (BOOLEAN_P)); 17. STATIC_DCL boolean FDECL(help_menu, (int *)); 18. #ifdef PORT_HELP 19. extern void NDECL(port_help); 20. #endif 21. 22. /* Returns "true" for characters that could represent a monster's stomach. */ 23. STATIC_OVL boolean 24. is_swallow_sym(c) 25. int c; 26. { 27. int i; 28. for (i = S_sw_tl; i <= S_sw_br; i++) 29. if ((int)showsyms[i] == c) return TRUE; 30. return FALSE; 31. } 32. 33. /* 34. * Append new_str to the end of buf if new_str doesn't already exist as 35. * a substring of buf. Return 1 if the string was appended, 0 otherwise. 36. * It is expected that buf is of size BUFSZ. 37. */ 38. STATIC_OVL int 39. append_str(buf, new_str) 40. char *buf; 41. const char *new_str; 42. { 43. int space_left; /* space remaining in buf */ 44. 45. if (strstri(buf, new_str)) return 0; 46. 47. space_left = BUFSZ - strlen(buf) - 1; 48. (void) strncat(buf, " or ", space_left); 49. (void) strncat(buf, new_str, space_left - 4); 50. return 1; 51. } 52. 53. /* 54. * Return the name of the glyph found at (x,y). 55. * If not hallucinating and the glyph is a monster, also monster data. 56. */ 57. STATIC_OVL struct permonst * 58. lookat(x, y, buf, monbuf) 59. int x, y; 60. char *buf, *monbuf; 61. { 62. register struct monst *mtmp = (struct monst *) 0; 63. struct permonst *pm = (struct permonst *) 0; 64. int glyph; 65. 66. buf[0] = monbuf[0] = 0; 67. glyph = glyph_at(x,y); 68. if (u.ux == x && u.uy == y && canseeself()) { 69. char race[QBUFSZ]; 70. 71. /* if not polymorphed, show both the role and the race */ 72. race[0] = 0; 73. if (!Upolyd) { 74. Sprintf(race, "%s ", urace.adj); 75. } 76. 77. Sprintf(buf, "%s%s%s called %s", 78. Invis ? "invisible " : "", 79. race, 80. mons[u.umonnum].mname, 81. plname); 82. 83. #ifdef STEED 84. if (u.usteed) { 85. char steedbuf[BUFSZ]; 86. 87. Sprintf(steedbuf, ", mounted on %s", y_monnam(u.usteed)); 88. /* assert((sizeof buf >= strlen(buf)+strlen(steedbuf)+1); */ 89. Strcat(buf, steedbuf); 90. } 91. #endif 92. } else if (u.uswallow) { 93. /* all locations when swallowed other than the hero are the monster */ 94. Sprintf(buf, "interior of %s", 95. Blind ? "a monster" : a_monnam(u.ustuck)); 96. pm = u.ustuck->data; 97. } else if (glyph_is_monster(glyph)) { 98. bhitpos.x = x; 99. bhitpos.y = y; 100. mtmp = m_at(x,y); 101. if (mtmp != (struct monst *) 0) { 102. char *name, monnambuf[BUFSZ]; 103. boolean accurate = !Hallucination; 104. 105. if (mtmp->data == &mons[PM_COYOTE] && accurate) 106. name = coyotename(mtmp, monnambuf); 107. else 108. name = distant_monnam(mtmp, ARTICLE_NONE, monnambuf); 109. 110. pm = mtmp->data; 111. Sprintf(buf, "%s%s%s", 112. (mtmp->mx != x || mtmp->my != y) ? 113. ((mtmp->isshk && accurate) 114. ? "tail of " : "tail of a ") : "", 115. (mtmp->mtame && accurate) ? "tame " : 116. (mtmp->mpeaceful && accurate) ? "peaceful " : "", 117. name); 118. if (u.ustuck == mtmp) 119. Strcat(buf, (Upolyd && sticks(youmonst.data)) ? 120. ", being held" : ", holding you"); 121. if (mtmp->mleashed) 122. Strcat(buf, ", leashed to you"); 123. 124. { 125. int ways_seen = 0, normal = 0, xraydist; 126. boolean useemon = (boolean) canseemon(mtmp); 127. 128. xraydist = (u.xray_range<0) ? -1 : u.xray_range * u.xray_range; 129. /* normal vision */ 130. if ((mtmp->wormno ? worm_known(mtmp) : cansee(mtmp->mx, mtmp->my)) && 131. mon_visible(mtmp) && !mtmp->minvis) { 132. ways_seen++; 133. normal++; 134. } 135. /* see invisible */ 136. if (useemon && mtmp->minvis) 137. ways_seen++; 138. /* infravision */ 139. if ((!mtmp->minvis || See_invisible) && see_with_infrared(mtmp)) 140. ways_seen++; 141. /* telepathy */ 142. if (tp_sensemon(mtmp)) 143. ways_seen++; 144. /* xray */ 145. if (useemon && xraydist > 0 && 146. distu(mtmp->mx, mtmp->my) <= xraydist) 147. ways_seen++; 148. if (Detect_monsters) 149. ways_seen++; 150. if (MATCH_WARN_OF_MON(mtmp)) 151. ways_seen++; 152. 153. if (ways_seen > 1 || !normal) { 154. if (normal) { 155. Strcat(monbuf, "normal vision"); 156. /* can't actually be 1 yet here */ 157. if (ways_seen-- > 1) Strcat(monbuf, ", "); 158. } 159. if (useemon && mtmp->minvis) { 160. Strcat(monbuf, "see invisible"); 161. if (ways_seen-- > 1) Strcat(monbuf, ", "); 162. } 163. if ((!mtmp->minvis || See_invisible) && 164. see_with_infrared(mtmp)) { 165. Strcat(monbuf, "infravision"); 166. if (ways_seen-- > 1) Strcat(monbuf, ", "); 167. } 168. if (tp_sensemon(mtmp)) { 169. Strcat(monbuf, "telepathy"); 170. if (ways_seen-- > 1) Strcat(monbuf, ", "); 171. } 172. if (useemon && xraydist > 0 && 173. distu(mtmp->mx, mtmp->my) <= xraydist) { 174. /* Eyes of the Overworld */ 175. Strcat(monbuf, "astral vision"); 176. if (ways_seen-- > 1) Strcat(monbuf, ", "); 177. } 178. if (Detect_monsters) { 179. Strcat(monbuf, "monster detection"); 180. if (ways_seen-- > 1) Strcat(monbuf, ", "); 181. } 182. if (MATCH_WARN_OF_MON(mtmp)) { 183. char wbuf[BUFSZ]; 184. if (Hallucination) 185. Strcat(monbuf, "paranoid delusion"); 186. else { 187. Sprintf(wbuf, "warned of %s", 188. makeplural(mtmp->data->mname)); 189. Strcat(monbuf, wbuf); 190. } 191. if (ways_seen-- > 1) Strcat(monbuf, ", "); 192. } 193. } 194. } 195. } 196. } 197. else if (glyph_is_object(glyph)) { 198. struct obj *otmp = vobj_at(x,y); 199. 200. if (!otmp || otmp->otyp != glyph_to_obj(glyph)) { 201. if (glyph_to_obj(glyph) != STRANGE_OBJECT) { 202. otmp = mksobj(glyph_to_obj(glyph), FALSE, FALSE); 203. if (otmp->oclass == GOLD_CLASS) 204. otmp->quan = 2L; /* to force pluralization */ 205. else if (otmp->otyp == SLIME_MOLD) 206. otmp->spe = current_fruit; /* give the fruit a type */ 207. Strcpy(buf, distant_name(otmp, xname)); 208. dealloc_obj(otmp); 209. } 210. } else 211. Strcpy(buf, distant_name(otmp, xname)); 212. 213. if (levl[x][y].typ == STONE || levl[x][y].typ == SCORR) 214. Strcat(buf, " embedded in stone"); 215. else if (IS_WALL(levl[x][y].typ) || levl[x][y].typ == SDOOR) 216. Strcat(buf, " embedded in a wall"); 217. else if (closed_door(x,y)) 218. Strcat(buf, " embedded in a door"); 219. else if (is_pool(x,y)) 220. Strcat(buf, " in water"); 221. else if (is_lava(x,y)) 222. Strcat(buf, " in molten lava"); /* [can this ever happen?] */ 223. } else if (glyph_is_trap(glyph)) { 224. int tnum = what_trap(glyph_to_trap(glyph)); 225. Strcpy(buf, defsyms[trap_to_defsym(tnum)].explanation); 226. } else if(!glyph_is_cmap(glyph)) { 227. Strcpy(buf,"dark part of a room"); 228. } else switch(glyph_to_cmap(glyph)) { 229. case S_altar: 230. if(!In_endgame(&u.uz)) 231. Sprintf(buf, "%s altar", 232. align_str(Amask2align(levl[x][y].altarmask & ~AM_SHRINE))); 233. else Sprintf(buf, "aligned altar"); 234. break; 235. case S_ndoor: 236. if (is_drawbridge_wall(x, y) >= 0) 237. Strcpy(buf,"open drawbridge portcullis"); 238. else if ((levl[x][y].doormask & ~D_TRAPPED) == D_BROKEN) 239. Strcpy(buf,"broken door"); 240. else 241. Strcpy(buf,"doorway"); 242. break; 243. case S_cloud: 244. Strcpy(buf, Is_airlevel(&u.uz) ? "cloudy area" : "fog/vapor cloud"); 245. break; 246. default: 247. Strcpy(buf,defsyms[glyph_to_cmap(glyph)].explanation); 248. break; 249. } 250. 251. return ((pm && !Hallucination) ? pm : (struct permonst *) 0); 252. } 253. 254. /* 255. * Look in the "data" file for more info. Called if the user typed in the 256. * whole name (user_typed_name == TRUE), or we've found a possible match 257. * with a character/glyph and flags.help is TRUE. 258. * 259. * NOTE: when (user_typed_name == FALSE), inp is considered read-only and 260. * must not be changed directly, e.g. via lcase(). We want to force 261. * lcase() for data.base lookup so that we can have a clean key. 262. * Therefore, we create a copy of inp _just_ for data.base lookup. 263. */ 264. STATIC_OVL void 265. checkfile(inp, pm, user_typed_name, without_asking) 266. char *inp; 267. struct permonst *pm; 268. boolean user_typed_name, without_asking; 269. { 270. dlb *fp; 271. char buf[BUFSZ], newstr[BUFSZ]; 272. char *ep, *dbase_str; 273. long txt_offset; 274. int chk_skip; 275. boolean found_in_file = FALSE, skipping_entry = FALSE; 276. 277. fp = dlb_fopen(DATAFILE, "r"); 278. if (!fp) { 279. pline("Cannot open data file!"); 280. return; 281. } 282. 283. /* To prevent the need for entries in data.base like *ngel to account 284. * for Angel and angel, make the lookup string the same for both 285. * user_typed_name and picked name. 286. */ 287. if (pm != (struct permonst *) 0 && !user_typed_name) 288. dbase_str = strcpy(newstr, pm->mname); 289. else dbase_str = strcpy(newstr, inp); 290. (void) lcase(dbase_str); 291. 292. if (!strncmp(dbase_str, "interior of ", 12)) 293. dbase_str += 12; 294. if (!strncmp(dbase_str, "a ", 2)) 295. dbase_str += 2; 296. else if (!strncmp(dbase_str, "an ", 3)) 297. dbase_str += 3; 298. else if (!strncmp(dbase_str, "the ", 4)) 299. dbase_str += 4; 300. if (!strncmp(dbase_str, "tame ", 5)) 301. dbase_str += 5; 302. else if (!strncmp(dbase_str, "peaceful ", 9)) 303. dbase_str += 9; 304. if (!strncmp(dbase_str, "invisible ", 10)) 305. dbase_str += 10; 306. if (!strncmp(dbase_str, "statue of ", 10)) 307. dbase_str[6] = '\0'; 308. else if (!strncmp(dbase_str, "figurine of ", 12)) 309. dbase_str[8] = '\0'; 310. 311. /* Make sure the name is non-empty. */ 312. if (*dbase_str) { 313. /* adjust the input to remove "named " and convert to lower case */ 314. char *alt = 0; /* alternate description */ 315. if ((ep = strstri(dbase_str, " named ")) != 0) 316. alt = ep + 7; 317. else 318. ep = strstri(dbase_str, " called "); 319. if (ep) *ep = '\0'; 320. else if ((ep = strstri(dbase_str, ", ")) != 0) *ep = '\0'; 321. 322. /* 323. * If the object is named, then the name is the alternate description; 324. * otherwise, the result of makesingular() applied to the name is. This 325. * isn't strictly optimal, but named objects of interest to the user 326. * will usually be found under their name, rather than under their 327. * object type, so looking for a singular form is pointless. 328. */ 329. 330. if (!alt) 331. alt = makesingular(dbase_str); 332. else 333. if (user_typed_name) 334. (void) lcase(alt); 335. 336. /* skip first record; read second */ 337. txt_offset = 0L; 338. if (!dlb_fgets(buf, BUFSZ, fp) || !dlb_fgets(buf, BUFSZ, fp)) { 339. impossible("can't read 'data' file"); 340. (void) dlb_fclose(fp); 341. return; 342. } else if (sscanf(buf, "%8lx\n", &txt_offset) < 1 || txt_offset <= 0) 343. goto bad_data_file; 344. 345. /* look for the appropriate entry */ 346. while (dlb_fgets(buf,BUFSZ,fp)) { 347. if (*buf == '.') break; /* we passed last entry without success */ 348. 349. if (digit(*buf)) { 350. /* a number indicates the end of current entry */ 351. skipping_entry = FALSE; 352. } else if (!skipping_entry) { 353. if (!(ep = index(buf, '\n'))) goto bad_data_file; 354. *ep = 0; 355. /* if we match a key that begins with "~", skip this entry */ 356. chk_skip = (*buf == '~') ? 1 : 0; 357. if (pmatch(&buf[chk_skip], dbase_str) || 358. (alt && pmatch(&buf[chk_skip], alt))) { 359. if (chk_skip) { 360. skipping_entry = TRUE; 361. continue; 362. } else { 363. found_in_file = TRUE; 364. break; 365. } 366. } 367. } 368. } 369. } 370. 371. if(found_in_file) { 372. long entry_offset; 373. int entry_count; 374. int i; 375. 376. /* skip over other possible matches for the info */ 377. do { 378. if (!dlb_fgets(buf, BUFSZ, fp)) goto bad_data_file; 379. } while (!digit(*buf)); 380. if (sscanf(buf, "%ld,%d\n", &entry_offset, &entry_count) < 2) { 381. bad_data_file: impossible("'data' file in wrong format"); 382. (void) dlb_fclose(fp); 383. return; 384. } 385. 386. if (user_typed_name || without_asking || yn("More info?") == 'y') { 387. winid datawin; 388. 389. if (dlb_fseek(fp, txt_offset + entry_offset, SEEK_SET) < 0) { 390. pline("? Seek error on 'data' file!"); 391. (void) dlb_fclose(fp); 392. return; 393. } 394. datawin = create_nhwindow(NHW_MENU); 395. for (i = 0; i < entry_count; i++) { 396. if (!dlb_fgets(buf, BUFSZ, fp)) goto bad_data_file; 397. if ((ep = index(buf, '\n')) != 0) *ep = 0; 398. if (index(buf+1, '\t') != 0) (void) tabexpand(buf+1); 399. putstr(datawin, 0, buf+1); 400. } 401. display_nhwindow(datawin, FALSE); 402. destroy_nhwindow(datawin); 403. } 404. } else if (user_typed_name) 405. pline("I don't have any information on those things."); 406. 407. (void) dlb_fclose(fp); 408. } 409. 410. /* getpos() return values */ 411. #define LOOK_TRADITIONAL 0 /* '.' -- ask about "more info?" */ 412. #define LOOK_QUICK 1 /* ',' -- skip "more info?" */ 413. #define LOOK_ONCE 2 /* ';' -- skip and stop looping */ 414. #define LOOK_VERBOSE 3 /* ':' -- show more info w/o asking */ 415. 416. /* also used by getpos hack in do_name.c */ 417. const char what_is_an_unknown_object[] = "an unknown object"; 418. 419. STATIC_OVL int 420. do_look(quick) 421. boolean quick; /* use cursor && don't search for "more info" */ 422. { 423. char out_str[BUFSZ], look_buf[BUFSZ]; 424. const char *x_str, *firstmatch = 0; 425. struct permonst *pm = 0; 426. int i, ans = 0; 427. int sym; /* typed symbol or converted glyph */ 428. int found; /* count of matching syms found */ 429. coord cc; /* screen pos of unknown glyph */ 430. boolean save_verbose; /* saved value of flags.verbose */ 431. boolean from_screen; /* question from the screen */ 432. boolean need_to_look; /* need to get explan. from glyph */ 433. boolean hit_trap; /* true if found trap explanation */ 434. int skipped_venom = 0; /* non-zero if we ignored "splash of venom" */ 435. static const char *mon_interior = "the interior of a monster"; 436. 437. if (quick) { 438. from_screen = TRUE; /* yes, we want to use the cursor */ 439. } else { 440. i = ynq("Specify unknown object by cursor?"); 441. if (i == 'q') return 0; 442. from_screen = (i == 'y'); 443. } 444. 445. if (from_screen) { 446. cc.x = u.ux; 447. cc.y = u.uy; 448. sym = 0; /* gcc -Wall lint */ 449. } else { 450. getlin("Specify what? (type the word)", out_str); 451. if (out_str[0] == '\0' || out_str[0] == '\033') 452. return 0; 453. 454. if (out_str[1]) { /* user typed in a complete string */ 455. checkfile(out_str, pm, TRUE, TRUE); 456. return 0; 457. } 458. sym = out_str[0]; 459. } 460. 461. /* Save the verbose flag, we change it later. */ 462. save_verbose = flags.verbose; 463. flags.verbose = flags.verbose && !quick; 464. /* 465. * The user typed one letter, or we're identifying from the screen. 466. */ 467. do { 468. /* Reset some variables. */ 469. need_to_look = FALSE; 470. pm = (struct permonst *)0; 471. found = 0; 472. out_str[0] = '\0'; 473. 474. if (from_screen) { 475. int glyph; /* glyph at selected position */ 476. 477. if (flags.verbose) 478. pline("Please move the cursor to %s.", 479. what_is_an_unknown_object); 480. else 481. pline("Pick an object."); 482. 483. ans = getpos(&cc, quick, what_is_an_unknown_object); 484. if (ans < 0 || cc.x < 0) { 485. flags.verbose = save_verbose; 486. return 0; /* done */ 487. } 488. flags.verbose = FALSE; /* only print long question once */ 489. 490. /* Convert the glyph at the selected position to a symbol. */ 491. glyph = glyph_at(cc.x,cc.y); 492. if (glyph_is_cmap(glyph)) { 493. sym = showsyms[glyph_to_cmap(glyph)]; 494. } else if (glyph_is_trap(glyph)) { 495. sym = showsyms[trap_to_defsym(glyph_to_trap(glyph))]; 496. } else if (glyph_is_object(glyph)) { 497. sym = oc_syms[(int)objects[glyph_to_obj(glyph)].oc_class]; 498. if (sym == '`' && iflags.bouldersym && (int)glyph_to_obj(glyph) == BOULDER) 499. sym = iflags.bouldersym; 500. } else if (glyph_is_monster(glyph)) { 501. /* takes care of pets, detected, ridden, and regular mons */ 502. sym = monsyms[(int)mons[glyph_to_mon(glyph)].mlet]; 503. } else if (glyph_is_swallow(glyph)) { 504. sym = showsyms[glyph_to_swallow(glyph)+S_sw_tl]; 505. } else if (glyph_is_invisible(glyph)) { 506. sym = DEF_INVISIBLE; 507. } else if (glyph_is_warning(glyph)) { 508. sym = glyph_to_warning(glyph); 509. sym = warnsyms[sym]; 510. } else { 511. impossible("do_look: bad glyph %d at (%d,%d)", 512. glyph, (int)cc.x, (int)cc.y); 513. sym = ' '; 514. } 515. } 516. 517. /* 518. * Check all the possibilities, saving all explanations in a buffer. 519. * When all have been checked then the string is printed. 520. */ 521. 522. /* Check for monsters */ 523. for (i = 0; i < MAXMCLASSES; i++) { 524. if (sym == (from_screen ? monsyms[i] : def_monsyms[i])) { 525. need_to_look = TRUE; 526. if (!found) { 527. Sprintf(out_str, "%c %s", sym, an(monexplain[i])); 528. firstmatch = monexplain[i]; 529. found++; 530. } else { 531. found += append_str(out_str, an(monexplain[i])); 532. } 533. } 534. } 535. /* handle '@' as a special case; firstmatch is guaranteed 536. to already be set in that case */ 537. if (!from_screen ? (sym == def_monsyms[S_HUMAN]) : 538. (cc.x == u.ux && cc.y == u.uy && sym == monsyms[S_HUMAN])) 539. found += append_str(out_str, "you"); /* tack on "or you" */ 540. 541. /* 542. * Special case: if identifying from the screen, and we're swallowed, 543. * and looking at something other than our own symbol, then just say 544. * "the interior of a monster". 545. */ 546. if (u.uswallow && from_screen && is_swallow_sym(sym)) { 547. if (!found) { 548. Sprintf(out_str, "%c %s", sym, mon_interior); 549. firstmatch = mon_interior; 550. } else { 551. found += append_str(out_str, mon_interior); 552. } 553. need_to_look = TRUE; 554. } 555. 556. /* Now check for objects */ 557. for (i = 1; i < MAXOCLASSES; i++) { 558. if (sym == (from_screen ? oc_syms[i] : def_oc_syms[i])) { 559. need_to_look = TRUE; 560. if (from_screen && i == VENOM_CLASS) { 561. skipped_venom++; 562. continue; 563. } 564. if (!found) { 565. Sprintf(out_str, "%c %s", sym, an(objexplain[i])); 566. firstmatch = objexplain[i]; 567. found++; 568. } else { 569. found += append_str(out_str, an(objexplain[i])); 570. } 571. } 572. } 573. 574. if (sym == DEF_INVISIBLE) { 575. if (!found) { 576. Sprintf(out_str, "%c %s", sym, an(invisexplain)); 577. firstmatch = invisexplain; 578. found++; 579. } else { 580. found += append_str(out_str, an(invisexplain)); 581. } 582. } 583. 584. #define is_cmap_trap(i) ((i) >= S_arrow_trap && (i) <= S_polymorph_trap) 585. #define is_cmap_drawbridge(i) ((i) >= S_vodbridge && (i) <= S_hcdbridge) 586. 587. /* Now check for graphics symbols */ 588. for (hit_trap = FALSE, i = 0; i < MAXPCHARS; i++) { 589. x_str = defsyms[i].explanation; 590. if (sym == (from_screen ? showsyms[i] : defsyms[i].sym) && *x_str) { 591. /* avoid "an air", "a water", or "a floor of a room" */ 592. int article = (i == S_room) ? 2 : /* 2=>"the" */ 593. !(strcmp(x_str, "air") == 0 || /* 1=>"an" */ 594. strcmp(x_str, "water") == 0); /* 0=>(none)*/ 595. 596. if (!found) { 597. if (is_cmap_trap(i)) { 598. Sprintf(out_str, "%c a trap", sym); 599. hit_trap = TRUE; 600. } else { 601. Sprintf(out_str, "%c %s", sym, 602. article == 2 ? the(x_str) : 603. article == 1 ? an(x_str) : x_str); 604. } 605. firstmatch = x_str; 606. found++; 607. } else if (!u.uswallow && !(hit_trap && is_cmap_trap(i)) && 608. !(found >= 3 && is_cmap_drawbridge(i))) { 609. found += append_str(out_str, 610. article == 2 ? the(x_str) : 611. article == 1 ? an(x_str) : x_str); 612. if (is_cmap_trap(i)) hit_trap = TRUE; 613. } 614. 615. if (i == S_altar || is_cmap_trap(i)) 616. need_to_look = TRUE; 617. } 618. } 619. 620. /* Now check for warning symbols */ 621. for (i = 1; i < WARNCOUNT; i++) { 622. x_str = def_warnsyms[i].explanation; 623. if (sym == (from_screen ? warnsyms[i] : def_warnsyms[i].sym)) { 624. if (!found) { 625. Sprintf(out_str, "%c %s", 626. sym, def_warnsyms[i].explanation); 627. firstmatch = def_warnsyms[i].explanation; 628. found++; 629. } else { 630. found += append_str(out_str, def_warnsyms[i].explanation); 631. } 632. break; /* out of for loop*/ 633. } 634. } 635. 636. /* if we ignored venom and list turned out to be short, put it back */ 637. if (skipped_venom && found < 2) { 638. x_str = objexplain[VENOM_CLASS]; 639. if (!found) { 640. Sprintf(out_str, "%c %s", sym, an(x_str)); 641. firstmatch = x_str; 642. found++; 643. } else { 644. found += append_str(out_str, an(x_str)); 645. } 646. } 647. 648. /* handle optional boulder symbol as a special case */ 649. if (iflags.bouldersym && sym == iflags.bouldersym) 650. found += append_str(out_str, "boulder"); 651. 652. /* 653. * If we are looking at the screen, follow multiple possibilities or 654. * an ambiguous explanation by something more detailed. 655. */ 656. if (from_screen) { 657. if (found > 1 || need_to_look) { 658. char monbuf[BUFSZ]; 659. char temp_buf[BUFSZ]; 660. 661. pm = lookat(cc.x, cc.y, look_buf, monbuf); 662. firstmatch = look_buf; 663. if (*firstmatch) { 664. Sprintf(temp_buf, " (%s)", firstmatch); 665. (void)strncat(out_str, temp_buf, BUFSZ-strlen(out_str)-1); 666. found = 1; /* we have something to look up */ 667. } 668. if (monbuf[0]) { 669. Sprintf(temp_buf, " [seen: %s]", monbuf); 670. (void)strncat(out_str, temp_buf, BUFSZ-strlen(out_str)-1); 671. } 672. } 673. } 674. 675. /* Finally, print out our explanation. */ 676. if (found) { 677. pline("%s", out_str); 678. /* check the data file for information about this thing */ 679. if (found == 1 && ans != LOOK_QUICK && ans != LOOK_ONCE && 680. (ans == LOOK_VERBOSE || (flags.help && !quick))) { 681. char temp_buf[BUFSZ]; 682. Strcpy(temp_buf, firstmatch); 683. checkfile(temp_buf, pm, FALSE, (boolean)(ans == LOOK_VERBOSE)); 684. } 685. } else { 686. pline("I've never heard of such things."); 687. } 688. 689. } while (from_screen && !quick && ans != LOOK_ONCE); 690. 691. flags.verbose = save_verbose; 692. return 0; 693. } 694. 695. 696. int 697. dowhatis() 698. { 699. return do_look(FALSE); 700. } 701. 702. int 703. doquickwhatis() 704. { 705. return do_look(TRUE); 706. } 707. 708. int 709. doidtrap() 710. { 711. register struct trap *trap; 712. int x, y, tt; 713. 714. if (!getdir((char *)0)) return 0; 715. x = u.ux + u.dx; 716. y = u.uy + u.dy; 717. for (trap = ftrap; trap; trap = trap->ntrap) 718. if (trap->tx == x && trap->ty == y) { 719. if (!trap->tseen) break; 720. tt = trap->ttyp; 721. if (u.dz) { 722. if (u.dz < 0 ? (tt == TRAPDOOR || tt == HOLE) : 723. tt == ROCKTRAP) break; 724. } 725. tt = what_trap(tt); 726. pline("That is %s%s%s.", 727. an(defsyms[trap_to_defsym(tt)].explanation), 728. !trap->madeby_u ? "" : (tt == WEB) ? " woven" : 729. /* trap doors & spiked pits can't be made by 730. player, and should be considered at least 731. as much "set" as "dug" anyway */ 732. (tt == HOLE || tt == PIT) ? " dug" : " set", 733. !trap->madeby_u ? "" : " by you"); 734. return 0; 735. } 736. pline("I can't see a trap there."); 737. return 0; 738. } 739. 740. int 741. dowhatdoes() 742. { 743. dlb *fp; 744. char bufr[BUFSZ+6]; 745. register char *buf = &bufr[6], *ep, q, ctrl, meta; 746. 747. fp = dlb_fopen(CMDHELPFILE, "r"); 748. if (!fp) { 749. pline("Cannot open data file!"); 750. return 0; 751. } 752. 753. #if defined(UNIX) || defined(VMS) 754. introff(); 755. #endif 756. q = yn_function("What command?", (char *)0, '\0'); 757. #if defined(UNIX) || defined(VMS) 758. intron(); 759. #endif 760. ctrl = ((q <= '\033') ? (q - 1 + 'A') : 0); 761. meta = ((0x80 & q) ? (0x7f & q) : 0); 762. while(dlb_fgets(buf,BUFSZ,fp)) 763. if ((ctrl && *buf=='^' && *(buf+1)==ctrl) || 764. (meta && *buf=='M' && *(buf+1)=='-' && *(buf+2)==meta) || 765. *buf==q) { 766. ep = index(buf, '\n'); 767. if(ep) *ep = 0; 768. if (ctrl && buf[2] == '\t'){ 769. buf = bufr + 1; 770. (void) strncpy(buf, "^? ", 8); 771. buf[1] = ctrl; 772. } else if (meta && buf[3] == '\t'){ 773. buf = bufr + 2; 774. (void) strncpy(buf, "M-? ", 8); 775. buf[2] = meta; 776. } else if(buf[1] == '\t'){ 777. buf = bufr; 778. buf[0] = q; 779. (void) strncpy(buf+1, " ", 7); 780. } 781. pline("%s", buf); 782. (void) dlb_fclose(fp); 783. return 0; 784. } 785. pline("I've never heard of such commands."); 786. (void) dlb_fclose(fp); 787. return 0; 788. } 789. 790. /* data for help_menu() */ 791. static const char *help_menu_items[] = { 792. /* 0*/ "Long description of the game and commands.", 793. /* 1*/ "List of game commands.", 794. /* 2*/ "Concise history of NetHack.", 795. /* 3*/ "Info on a character in the game display.", 796. /* 4*/ "Info on what a given key does.", 797. /* 5*/ "List of game options.", 798. /* 6*/ "Longer explanation of game options.", 799. /* 7*/ "List of extended commands.", 800. /* 8*/ "The NetHack license.", 801. #ifdef PORT_HELP 802. "%s-specific help and commands.", 803. #define PORT_HELP_ID 100 804. #define WIZHLP_SLOT 10 805. #else 806. #define WIZHLP_SLOT 9 807. #endif 808. #ifdef WIZARD 809. "List of wizard-mode commands.", 810. #endif 811. "", 812. (char *)0 813. }; 814. 815. STATIC_OVL boolean 816. help_menu(sel) 817. int *sel; 818. { 819. winid tmpwin = create_nhwindow(NHW_MENU); 820. #ifdef PORT_HELP 821. char helpbuf[QBUFSZ]; 822. #endif 823. int i, n; 824. menu_item *selected; 825. anything any; 826. 827. any.a_void = 0; /* zero all bits */ 828. start_menu(tmpwin); 829. #ifdef WIZARD 830. if (!wizard) help_menu_items[WIZHLP_SLOT] = "", 831. help_menu_items[WIZHLP_SLOT+1] = (char *)0; 832. #endif 833. for (i = 0; help_menu_items[i]; i++) 834. #ifdef PORT_HELP 835. /* port-specific line has a %s in it for the PORT_ID */ 836. if (help_menu_items[i][0] == '%') { 837. Sprintf(helpbuf, help_menu_items[i], PORT_ID); 838. any.a_int = PORT_HELP_ID + 1; 839. add_menu(tmpwin, NO_GLYPH, &any, 0, 0, ATR_NONE, 840. helpbuf, MENU_UNSELECTED); 841. } else 842. #endif 843. { 844. any.a_int = (*help_menu_items[i]) ? i+1 : 0; 845. add_menu(tmpwin, NO_GLYPH, &any, 0, 0, 846. ATR_NONE, help_menu_items[i], MENU_UNSELECTED); 847. } 848. end_menu(tmpwin, "Select one item:"); 849. n = select_menu(tmpwin, PICK_ONE, &selected); 850. destroy_nhwindow(tmpwin); 851. if (n > 0) { 852. *sel = selected[0].item.a_int - 1; 853. free((genericptr_t)selected); 854. return TRUE; 855. } 856. return FALSE; 857. } 858. 859. int 860. dohelp() 861. { 862. int sel = 0; 863. 864. if (help_menu(&sel)) { 865. switch (sel) { 866. case 0: display_file(HELP, TRUE); break; 867. case 1: display_file(SHELP, TRUE); break; 868. case 2: (void) dohistory(); break; 869. case 3: (void) dowhatis(); break; 870. case 4: (void) dowhatdoes(); break; 871. case 5: option_help(); break; 872. case 6: display_file(OPTIONFILE, TRUE); break; 873. case 7: (void) doextlist(); break; 874. case 8: display_file(LICENSE, TRUE); break; 875. #ifdef WIZARD 876. /* handle slot 9 or 10 */ 877. default: display_file(DEBUGHELP, TRUE); break; 878. #endif 879. #ifdef PORT_HELP 880. case PORT_HELP_ID: port_help(); break; 881. #endif 882. } 883. } 884. return 0; 885. } 886. 887. int 888. dohistory() 889. { 890. display_file(HISTORY, TRUE); 891. return 0; 892. } 893. 894. /*pager.c*/
