| abstract
| - Below is the full text to worn.c from the source code of NetHack 3.2.0. To link to a particular line, write [[NetHack 3.2.0/worn.c#line123]], for example. Warning! This is the source code from an old release. For the latest release, see Source code 1. /* SCCS Id: @(#)worn.c 3.2 96/03/28 */ 2. /* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */ 3. /* NetHack may be freely redistributed. See license for details. */ 4. 5. #include "hack.h" 6. 7. static void FDECL(m_lose_armor, (struct monst *,struct obj *)); 8. 9. const struct worn { 10. long w_mask; 11. struct obj **w_obj; 12. } worn[] = { 13. { W_ARM, &uarm }, 14. { W_ARMC, &uarmc }, 15. { W_ARMH, &uarmh }, 16. { W_ARMS, &uarms }, 17. { W_ARMG, &uarmg }, 18. { W_ARMF, &uarmf }, 19. #ifdef TOURIST 20. { W_ARMU, &uarmu }, 21. #endif 22. { W_RINGL, &uleft }, 23. { W_RINGR, &uright }, 24. { W_WEP, &uwep }, 25. { W_AMUL, &uamul }, 26. { W_TOOL, &ublindf }, 27. { W_BALL, &uball }, 28. { W_CHAIN, &uchain }, 29. { 0, 0 } 30. }; 31. 32. /* this only allows for one blocking item per property; 33. to be general, we'd need a separate uprops[].i_blocked 34. field rather than just a single bit in uprops[].p_flgs */ 35. #define w_blocks(otmp) \ 36. ((otmp->otyp == MUMMY_WRAPPING) ? INVIS : \ 37. (otmp->otyp == CORNUTHAUM && !Role_is('W')) ? CLAIRVOYANT : 0) 38. /* note: monsters don't have clairvoyance, so your role 39. has no significant effect on their use of w_blocks() */ 40. 41. void 42. setworn(obj, mask) 43. register struct obj *obj; 44. long mask; 45. { 46. register const struct worn *wp; 47. register struct obj *oobj; 48. register int p; 49. 50. if ((mask & (W_ARM|I_SPECIAL)) == (W_ARM|I_SPECIAL)) { 51. /* restoring saved game; no properties are conferred via skin */ 52. uskin = obj; 53. /* assert( !uarm ); */ 54. } else { 55. for(wp = worn; wp->w_mask; wp++) if(wp->w_mask & mask) { 56. oobj = *(wp->w_obj); 57. if(oobj && !(oobj->owornmask & wp->w_mask)) 58. impossible("Setworn: mask = %ld.", wp->w_mask); 59. if(oobj) { 60. oobj->owornmask &= ~wp->w_mask; 61. /* leave as "x = x y", here and below, for broken 62. * compilers */ 63. p = objects[oobj->otyp].oc_oprop; 64. u.uprops[p].p_flgs = u.uprops[p].p_flgs & ~wp->w_mask; 65. if (oobj->oartifact) set_artifact_intrinsic(oobj, 0, mask); 66. if ((p = w_blocks(oobj)) != 0) 67. u.uprops[p].p_flgs &= ~I_BLOCKED; 68. } 69. *(wp->w_obj) = obj; 70. if(obj) { 71. obj->owornmask |= wp->w_mask; 72. /* prevent getting intrinsics from wielding potions, etc... */ 73. /* wp_mask should be same as mask at this point */ 74. if(obj->oclass == WEAPON_CLASS || mask != W_WEP) { 75. p = objects[obj->otyp].oc_oprop; 76. u.uprops[p].p_flgs = u.uprops[p].p_flgs | wp->w_mask; 77. } 78. if (obj->oartifact) set_artifact_intrinsic(obj, 1, mask); 79. if ((p = w_blocks(obj)) != 0) 80. u.uprops[p].p_flgs |= I_BLOCKED; 81. } 82. } 83. } 84. update_inventory(); 85. } 86. 87. /* called e.g. when obj is destroyed */ 88. void 89. setnotworn(obj) 90. register struct obj *obj; 91. { 92. register const struct worn *wp; 93. register int p; 94. 95. if (!obj) return; 96. for(wp = worn; wp->w_mask; wp++) 97. if(obj == *(wp->w_obj)) { 98. *(wp->w_obj) = 0; 99. p = objects[obj->otyp].oc_oprop; 100. u.uprops[p].p_flgs = u.uprops[p].p_flgs & ~wp->w_mask; 101. obj->owornmask &= ~wp->w_mask; 102. if (obj->oartifact) 103. set_artifact_intrinsic(obj, 0, wp->w_mask); 104. if ((p = w_blocks(obj)) != 0) 105. u.uprops[p].p_flgs &= ~I_BLOCKED; 106. } 107. update_inventory(); 108. } 109. 110. void 111. mon_set_minvis(mon) 112. struct monst *mon; 113. { 114. mon->perminvis = 1; 115. if (!mon->invis_blkd) { 116. mon->minvis = 1; 117. newsym(mon->mx, mon->my); /* make it disappear */ 118. if (mon->wormno) see_wsegs(mon); /* and any tail too */ 119. } 120. } 121. 122. /* armor put on or taken off; might be magical variety */ 123. void 124. update_mon_intrinsics(mon, obj, on) 125. struct monst *mon; 126. struct obj *obj; 127. boolean on; 128. { 129. int unseen = !canseemon(mon); 130. 131. switch (objects[obj->otyp].oc_oprop) { 132. case INVIS: 133. mon->minvis = on ? !mon->invis_blkd : mon->perminvis; 134. break; 135. default: 136. break; 137. } 138. switch (w_blocks(obj)) { 139. case INVIS: 140. mon->invis_blkd = on ? 1 : 0; 141. mon->minvis = on ? 0 : mon->perminvis; 142. break; 143. default: 144. break; 145. } 146. 147. /* if couldn't see it but now can, or vice versa, update display */ 148. if (unseen ^ !canseemon(mon)) 149. newsym(mon->mx, mon->my); 150. } 151. 152. int 153. find_mac(mon) 154. register struct monst *mon; 155. { 156. register struct obj *obj; 157. int base = mon->data->ac; 158. long mwflags = mon->misc_worn_check; 159. 160. for (obj = mon->minvent; obj; obj = obj->nobj) { 161. if (obj->owornmask & mwflags) 162. base -= ARM_BONUS(obj); 163. /* since ARM_BONUS is positive, subtracting it increases AC */ 164. } 165. return base; 166. } 167. 168. /* weapons are handled separately; rings and eyewear aren't used by monsters */ 169. #define m_might_wear(O) ((O)->oclass == ARMOR_CLASS || \ 170. (O)->oclass == AMULET_CLASS) 171. 172. /* Wear first object of that type it finds, and never switch unless it 173. * has none at all. This means that monsters with leather armor never 174. * switch to plate mail, but it also avoids the overhead of either having 8 175. * struct obj *s for every monster in the game, or of doing multiple inventory 176. * searches each round using which_armor(). 177. * 178. * We'll let monsters put on shirts and/or suits under worn cloaks, but 179. * not shirts under worn suits. This is somewhat arbitrary, but it's 180. * too tedious to have them remove and later replace outer garments, 181. * and preventing suits under cloaks makes it a little bit too easy for 182. * players to influence what gets worn. Putting on a shirt underneath 183. * already worn body armor is too obviously buggy... 184. */ 185. void 186. m_dowear(mon, creation) 187. register struct monst *mon; 188. boolean creation; 189. { 190. register struct obj *obj; 191. 192. /* Note the restrictions here are the same as in dowear in do_wear.c 193. * except for the additional restriction on intelligence. (Players 194. * are always intelligent, even if polymorphed). 195. */ 196. if (verysmall(mon->data) || nohands(mon->data) || is_animal(mon->data)) 197. return; 198. /* give mummies a chance to wear their wrappings */ 199. if (mindless(mon->data) && (mon->data->mlet != S_MUMMY || !creation)) 200. return; 201. 202. for(obj = mon->minvent; obj; obj = obj->nobj) { 203. long flag; 204. int m_delay = 0; 205. 206. /* if already worn or never wearable, skip it right away */ 207. if (obj->owornmask || !m_might_wear(obj)) continue; 208. 209. if (obj->oclass == AMULET_CLASS) { 210. if (obj->otyp != AMULET_OF_LIFE_SAVING && 211. obj->otyp != AMULET_OF_REFLECTION) 212. continue; 213. flag = W_AMUL; 214. #ifdef TOURIST 215. } else if (is_shirt(obj)) { 216. if (cantweararm(mon->data) || 217. /* can't put on shirt if already wearing suit */ 218. (mon->misc_worn_check & W_ARM)) 219. continue; 220. flag = W_ARMU; 221. m_delay = (mon->misc_worn_check & W_ARMC) ? 2 : 0; 222. #endif 223. } else if (is_cloak(obj)) { 224. /* treating small as a special case allows 225. hobbits, gnomes, and kobolds to wear cloaks */ 226. if (cantweararm(mon->data) && 227. mon->data->msize != MZ_SMALL) 228. continue; 229. flag = W_ARMC; 230. } else if (is_helmet(obj)) { 231. flag = W_ARMH; 232. } else if (is_shield(obj)) { 233. if (MON_WEP(mon) && bimanual(MON_WEP(mon))) 234. continue; 235. flag = W_ARMS; 236. } else if (is_gloves(obj)) { 237. if (MON_WEP(mon) && MON_WEP(mon)->cursed) 238. continue; 239. flag = W_ARMG; 240. } else if (is_boots(obj)) { 241. if (slithy(mon->data) || mon->data->mlet == S_CENTAUR) 242. continue; 243. flag = W_ARMF; 244. } else if (obj->oclass == ARMOR_CLASS) { 245. if (cantweararm(mon->data)) 246. continue; 247. flag = W_ARM; 248. m_delay = (mon->misc_worn_check & W_ARMC) ? 2 : 0; 249. } else 250. continue; /* shouldn't be possible */ 251. 252. if (mon->misc_worn_check & flag) continue; 253. /* already wearing one */ 254. if (!creation && canseemon(mon)) { 255. pline("%s puts on %s.", Monnam(mon), 256. distant_name(obj, doname)); 257. m_delay += objects[obj->otyp].oc_delay; 258. mon->mfrozen = m_delay; 259. if (mon->mfrozen) mon->mcanmove = 0; 260. } 261. mon->misc_worn_check |= flag; 262. obj->owornmask |= flag; 263. update_mon_intrinsics(mon, obj, TRUE); 264. if (mon->mfrozen) break; /* now busy */ 265. } 266. } 267. 268. struct obj * 269. which_armor(mon, flag) 270. struct monst *mon; 271. long flag; 272. { 273. register struct obj *obj; 274. 275. for(obj = mon->minvent; obj; obj = obj->nobj) 276. if (obj->owornmask & flag) return obj; 277. return((struct obj *)0); 278. } 279. 280. /* remove an item of armor and then drop it */ 281. static void 282. m_lose_armor(mon, obj) 283. struct monst *mon; 284. struct obj *obj; 285. { 286. mon->misc_worn_check &= ~obj->owornmask; 287. obj->owornmask = 0L; 288. update_mon_intrinsics(mon, obj, FALSE); 289. 290. obj_extract_self(obj); 291. place_object(obj, mon->mx, mon->my); 292. /* call stackobj() if we ever drop anything that can merge */ 293. newsym(mon->mx, mon->my); 294. } 295. 296. void 297. mon_break_armor(mon) 298. struct monst *mon; 299. { 300. register struct obj *otmp; 301. struct permonst *mdat = mon->data; 302. boolean vis = cansee(mon->mx, mon->my); 303. const char *pronoun = him[pronoun_gender(mon)], 304. *ppronoun = his[pronoun_gender(mon)]; 305. 306. if (breakarm(mdat)) { 307. if ((otmp = which_armor(mon, W_ARM)) != 0) { 308. if (vis) 309. pline("%s breaks out of %s armor!", Monnam(mon), ppronoun); 310. else 311. You_hear("a cracking sound."); 312. m_useup(mon, otmp); 313. } 314. if ((otmp = which_armor(mon, W_ARMC)) != 0) { 315. if (otmp->oartifact) { 316. if (vis) 317. pline("%s cloak falls off!", s_suffix(Monnam(mon))); 318. m_lose_armor(mon, otmp); 319. } else { 320. if (vis) 321. pline("%s cloak tears apart!", s_suffix(Monnam(mon))); 322. else 323. You_hear("a ripping sound."); 324. m_useup(mon, otmp); 325. } 326. } 327. #ifdef TOURIST 328. if ((otmp = which_armor(mon, W_ARMU)) != 0) { 329. if (vis) 330. pline("%s shirt rips to shreds!", s_suffix(Monnam(mon))); 331. else 332. You_hear("a ripping sound."); 333. m_useup(mon, otmp); 334. } 335. #endif 336. } else if (sliparm(mdat)) { 337. if ((otmp = which_armor(mon, W_ARM)) != 0) { 338. if (vis) 339. pline("%s armor falls around %s!", 340. s_suffix(Monnam(mon)), pronoun); 341. else 342. You_hear("a thud."); 343. m_lose_armor(mon, otmp); 344. } 345. if ((otmp = which_armor(mon, W_ARMC)) != 0) { 346. if (vis) 347. if (is_whirly(mon->data)) 348. pline("%s cloak falls, unsupported!", 349. s_suffix(Monnam(mon))); 350. else 351. pline("%s shrinks out of %s cloak!", Monnam(mon), 352. ppronoun); 353. m_lose_armor(mon, otmp); 354. } 355. #ifdef TOURIST 356. if ((otmp = which_armor(mon, W_ARMU)) != 0) { 357. if (vis) 358. if (sliparm(mon->data)) 359. pline("%s seeps right through %s shirt!", 360. Monnam(mon), ppronoun); 361. else 362. pline("%s becomes much too small for %s shirt!", 363. Monnam(mon), ppronoun); 364. m_lose_armor(mon, otmp); 365. } 366. #endif 367. } 368. if (nohands(mdat) || verysmall(mdat)) { 369. if ((otmp = which_armor(mon, W_ARMG)) != 0) { 370. if (vis) 371. pline("%s drops %s gloves%s!", Monnam(mon), ppronoun, 372. MON_WEP(mon) ? " and weapon" : ""); 373. possibly_unwield(mon); 374. m_lose_armor(mon, otmp); 375. } 376. if ((otmp = which_armor(mon, W_ARMS)) != 0) { 377. if (vis) 378. pline("%s can no longer hold %s shield!", Monnam(mon), 379. ppronoun); 380. else 381. You_hear("a clank."); 382. m_lose_armor(mon, otmp); 383. } 384. if ((otmp = which_armor(mon, W_ARMH)) != 0) { 385. if (vis) 386. pline("%s helmet falls to the %s!", 387. s_suffix(Monnam(mon)), surface(mon->mx, mon->my)); 388. else 389. You_hear("a clank."); 390. m_lose_armor(mon, otmp); 391. } 392. } 393. if (nohands(mdat) || verysmall(mdat) || slithy(mdat) || 394. mdat->mlet == S_CENTAUR) { 395. if ((otmp = which_armor(mon, W_ARMF)) != 0) { 396. if (vis) { 397. if (is_whirly(mon->data)) 398. pline("%s boots fall away!", 399. s_suffix(Monnam(mon))); 400. else pline("%s boots %s off %s feet!", 401. s_suffix(Monnam(mon)), 402. verysmall(mdat) ? "slide" : "are pushed", ppronoun); 403. } 404. m_lose_armor(mon, otmp); 405. } 406. } 407. } 408. 409. /*worn.c*/
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