Source:NetHack 2.3e/zap.c

Below is the full text to zap.c from the source code of NetHack 2.3e. To link to a particular line, write [[NetHack 2.3e/zap.c#line123 ]], for example.

Warning! This is the source code from an old release. For the latest release, see Source code

1.   /*	SCCS Id: @(#)zap.c	2.3	88/02/11 2.   /* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */ 3.     4.    #include "hack.h"  5. 6.   extern struct obj *mkobj_at, *mksobj_at; 7.   extern struct monst *makemon, *mkmon_at, youmonst; 8.   struct monst *bhit; 9.   char *exclam; 10.  #ifdef KAA 11.  extern char *xname; 12.  #endif 13.   14.   char *fl[]= { 15.  	"magic missile",	/* Wands must be 0-9 */ 16.  	"bolt of fire", 17.  	"sleep ray", 18.  	"bolt of cold", 19.  	"death ray", 20.  	"bolt of lightening", 21.  	"",  22.   	"",  23.   	"",  24.   	"",  25.    26.   	"magic missile",	/* Spell equivalents must be 10-19 */ 27.  	"fireball", 28.  	"sleep ray", 29.  	"cone of cold", 30.  	"finger of death", 31.  	"bolt of lightening", 32.  	"",  33.   	"",  34.   	"",  35.   	"",  36.    37.   	"blast of missiles",	/* Dragon breath equivalents 20-29*/ 38.  	"blast of fire", 39.  	"blast of sleep gas", 40.  	"blast of frost", 41.  	"blast of disintegration", 42.  	"blast of lightening", 43.  	"blast of poison gas", 44.  	"blast of acid", 45.  	"",  46.   	""  47.   };  48.    49.   /* Routines for IMMEDIATE wands and spells. */ 50.   /* bhitm: monster mtmp was hit by the effect of wand or spell otmp */ 51.  bhitm(mtmp, otmp) 52.  register struct monst *mtmp; 53.  register struct obj *otmp; 54.  {  55.   	wakeup(mtmp); 56.  	switch(otmp->otyp) { 57.  	case WAN_STRIKING: 58.  #ifdef SPELLS 59.  	case SPE_FORCE_BOLT: 60.  #endif 61.  		if(u.uswallow || rnd(20) < 10+mtmp->data->ac) { 62.  			register int tmp = d(2,12); 63.  			hit((otmp->otyp == WAN_STRIKING) ? "wand" : "spell", mtmp, exclam(tmp)); 64.  			resist(mtmp, otmp->olet, tmp, TELL); 65.  		} else miss((otmp->otyp == WAN_STRIKING) ? "wand" : "spell", mtmp); 66.  		break; 67.  	case WAN_SLOW_MONSTER: 68.  #ifdef SPELLS 69.  	case SPE_SLOW_MONSTER: 70.  #endif 71.  		if(! resist(mtmp, otmp->olet, 0, NOTELL)) 72.  			mtmp->mspeed = MSLOW; 73.  		break; 74.  	case WAN_SPEED_MONSTER: 75.  		if (!resist(mtmp, otmp->olet, 0, NOTELL)) 76.  			mtmp->mspeed = MFAST; 77.  		break; 78.  	case WAN_UNDEAD_TURNING: 79.  #ifdef SPELLS 80.  	case SPE_TURN_UNDEAD: 81.  #endif 82.  		if(index(UNDEAD,mtmp->data->mlet)) { 83.   84.   			if(!resist(mtmp, otmp->olet, rnd(8), NOTELL)) 85.  				mtmp->mflee = 1; 86.  		}  87.   		break; 88.  	case WAN_POLYMORPH: 89.  #ifdef SPELLS 90.  	case SPE_POLYMORPH: 91.  #endif 92.  		if(!resist(mtmp, otmp->olet, 0, NOTELL)) 93.  		    if( newcham(mtmp,&mons[rn2(CMNUM)]) ) 94.  			if (!Hallucination) 95.  			    objects[otmp->otyp].oc_name_known = 1; 96.  		break; 97.  	case WAN_CANCELLATION: 98.  #ifdef SPELLS 99.  	case SPE_CANCELLATION: 100. #endif 101. 		if(!resist(mtmp, otmp->olet, 0, NOTELL)) 102. 			mtmp->mcan = 1; 103. 		break; 104. 	case WAN_TELEPORTATION: 105. #ifdef SPELLS 106. 	case SPE_TELEPORT_AWAY: 107. #endif 108. 		rloc(mtmp); 109. 		break; 110. 	case WAN_MAKE_INVISIBLE: 111. 		mtmp->minvis = 1; 112. 		break; 113. 	case WAN_NOTHING: 114. 		break; 115. 	case WAN_PROBING: 116. #ifdef PROBING 117. 		mstatusline(mtmp); 118. #else 119. 		pline("Nothing Happens."); 120. #endif 121. 		break; 122. 	default: 123. 		impossible("What an interesting effect (%u)", otmp->otyp); 124. 	}  125.  }  126.   127.  bhito(obj, otmp)	/* object obj was hit by the effect of wand otmp */ 128. register struct obj *obj, *otmp;	/* returns TRUE if sth was done */ 129. {  130.  	register int res = TRUE; 131. #ifdef DGKMOD 132. 	struct obj *otmp2; 133. #endif 134.  135.  	if(obj == uball || obj == uchain) 136. 		res = FALSE; 137. 	else 138. 	switch(otmp->otyp) { 139. 	case WAN_POLYMORPH: 140. #ifdef SPELLS 141. 	case SPE_POLYMORPH: 142. #endif 143. 		/* preserve symbol and quantity, but turn rocks into gems */ 144. #ifdef DGKMOD 145. 		otmp2 = mkobj_at((obj->otyp == ROCK 146. 			|| obj->otyp == ENORMOUS_ROCK) ? GEM_SYM : obj->olet,  147.  			obj->ox, obj->oy); 148. 		otmp2->quan = obj->quan; 149. 		/* keep special fields (including charges on wands) */ 150. 		/* The DGK modification doesn't allow polymorphing a weapon 151. 		   with enchantments into another one, and doesn't allow 152. 		   polymorphed rings to have plusses. KAA*/ 153. 		if (index("/)[", otmp2->olet)) otmp2->spe = obj->spe;  154.  	        /* Amulets gets cheap   stewr 870807 */  155.  		if (obj->otyp == AMULET_OF_YENDOR) otmp2->spe = obj->spe;  156.  		/* Wands of wishing max 3 stewr 870808 */  157.  		if ((otmp2->otyp == WAN_WISHING) 158. 		    && (obj->spe > 3)) otmp2->spe = 3;  159.  		otmp2->cursed = otmp->cursed;  160.  		/* update the weight */  161.  		otmp2->owt = weight(otmp2);  162.  #else  163.  		mkobj_at((obj->otyp == ROCK || obj->otyp == ENORMOUS_ROCK) 164. 			? GEM_SYM : obj->olet, 165. 			obj->ox, obj->oy) -> quan = obj->quan;  166.  #endif  167.  		delobj(obj);  168.  		break;  169.  	case WAN_STRIKING:  170.  #ifdef SPELLS  171.  	case SPE_FORCE_BOLT:  172.  #endif  173.  		if(obj->otyp == ENORMOUS_ROCK)  174.  			fracture_rock(obj);  175.  		else  176.  			res = FALSE;  177.  		break;  178.  	case WAN_CANCELLATION:  179.  #ifdef SPELLS  180.  	case SPE_CANCELLATION:  181.  #endif  182.  		if(obj->spe && obj->olet != AMULET_SYM) {  183.  			obj->known = 0;  184.  			obj->spe = (obj->olet == WAND_SYM) ? -1 : 0;  185.  		}  186.  		break;  187.  	case WAN_TELEPORTATION:  188.  #ifdef SPELLS  189.  	case SPE_TELEPORT_AWAY:  190.  #endif  191.  		rloco(obj);  192.  		break;  193.  	case WAN_MAKE_INVISIBLE:  194.  		obj->oinvis = 1;  195.  		break;  196.  	case WAN_UNDEAD_TURNING:  197.  #ifdef SPELLS  198.  	case SPE_TURN_UNDEAD:  199.  #endif  200.  		res = revive(obj); 201. 		break; 202. 	case WAN_SLOW_MONSTER:		/* no effect on objects */ 203. #ifdef SPELLS 204. 	case SPE_SLOW_MONSTER: 205. #endif 206. 	case WAN_SPEED_MONSTER: 207. 	case WAN_NOTHING: 208. 	case WAN_PROBING: 209. 		res = FALSE; 210. 		break; 211. 	default: 212. 		impossible("What an interesting effect (%u)", otmp->otyp); 213. 	}  214.  	return(res); 215. }  216.   217.  /*  218.   * zappable - returns 1 if zap is available, 0 otherwise. 219.  *	      it removes a charge from the wand if zappable. 220.  * added by GAN 11/03/86 221.  */  222.  int 223. zappable(wand) 224. register struct obj *wand; 225. {  226.  	if(wand->spe < 0 || (wand->spe ==0 && rn2(121))) 227. 		return(0); 228. 	else  { 229. 		if(wand->spe == 0) 230. 			pline("You wrest one more spell from the worn-out wand."); 231. 		wand->spe--; 232. 		return(1); 233. 	}  234.  }  235.   236.  /*  237.   * zapnodir - zaps an NODIR wand. 238.  * added by GAN 11/03/86 239.  */  240.  zapnodir(wand) 241. register struct obj *wand; 242. {  243.  	switch(wand->otyp){ 244. 		case WAN_LIGHT: 245. 			litroom(TRUE); 246. 			break; 247. 		case WAN_SECRET_DOOR_DETECTION: 248. 			if(!findit) return; 249. 			break; 250. 		case WAN_CREATE_MONSTER: 251. 			{ register int cnt = 1; 252. 			if(!rn2(23)) cnt += rn2(7) + 1; 253. 			while(cnt--) 254. 			    (void) makemon((struct permonst *) 0, u.ux, u.uy); 255. 			}  256.  			break; 257. 		case WAN_WISHING: 258. 			   259.  			if(u.uluck + rn2(5) < 0) { 260. 				pline("Unfortunately, nothing happens."); 261. 				break; 262. 			}  263.  			makewish; 264. 			break; 265. 	}  266.  	if(!objects[wand->otyp].oc_name_known) { 267. 			objects[wand->otyp].oc_name_known = 1; 268. 			more_experienced(0,10); 269. 	}  270.  }  271.   272.  dozap 273. {  274.  	register struct obj *obj; 275. 	int	damage; 276.  277.  	obj = getobj("/", "zap"); 278. 	if(!obj) return(0); 279. 	  280.  	/* zappable addition done by GAN 11/03/86 */ 281. 	if(!zappable(obj))  { 282. 		pline("Nothing Happens."); 283. 		return(1); 284. 	}  285.  	if(!(objects[obj->otyp].bits & NODIR) && !getdir(1)) { 286. 		pline("The %s glows and fades.",xname(obj)); 287. 		return(1);	/* make him pay for knowing !NODIR */ 288. 	}  289.  #ifdef KAA 290.      if(!u.dx && !u.dy && !u.dz && !(objects[obj->otyp].bits & NODIR)) { 291.  292.  		if((damage = zapyourself(obj))) 293. 			losehp(damage,"self-inflicted injury"); 294. 		return(1); 295.      }  296.  #endif 297. 	weffects(obj); 298. #ifdef HARD 299. 	if (obj->spe < 0) { 300. 	    pline ("The %s glows violently, then turns to dust.", xname(obj)); 301. 	    useup(obj); 302. 	}  303.  #endif 304. 	return(1); 305. }  306.   307.  #ifdef KAA 308. #define	makeknown(x)	objects[x].oc_name_known = 1 309.  310.  zapyourself(obj) 311. 	register struct obj	*obj; 312. {  313.  struct obj	*otmp; 314. int	damage = 0; 315.  316.  	switch(obj->otyp) { 317. 		case WAN_STRIKING: 318. #ifdef SPELLS 319. 		case SPE_FORCE_BOLT: 320. #endif 321. 		    pline("You magically bash yourself!"); 322. 		    damage=d(8,6); 323. 		    break; 324. 		case WAN_LIGHTNING: 325. 		    makeknown(WAN_LIGHTNING); 326. 		    pline("Idiot!  You've shocked yourself!"); 327. 		    if (!Shock_resistance) damage=d(12,6); 328. 		    if (!Blind) { 329. 			    pline("You are blinded by the flash!"); 330. 			    Blinded += rnd(100); 331. 			    seeoff(0); 332. 		    }  333.  		    break; 334. 		case WAN_FIRE: 335. 		    makeknown(WAN_FIRE); 336. #ifdef SPELLS 337. 		case SPE_FIREBALL: 338. #endif 339. 		    pline("You've set light to yourself!"); 340. 		    if (!Fire_resistance) damage=d(12,6); 341. 		    burn_scrolls; 342. 		    boil_potions; 343. 		    break; 344. 		case WAN_COLD: 345. 		    makeknown(WAN_COLD); 346. #ifdef SPELLS 347. 		case SPE_CONE_OF_COLD: 348. #endif 349. 		    pline("You imitate a popsicle!"); 350. 		    if (!Cold_resistance) damage=d(12,6); 351. 		    freeze_potions; 352. 		    break; 353. 		case WAN_MAGIC_MISSILE: 354. 		    makeknown(WAN_MAGIC_MISSILE); 355. #ifdef SPELLS 356. 		case SPE_MAGIC_MISSILE: 357. #endif 358. 		    damage = d(4,6); 359. 		    pline("Idiot!  You've shot yourself!"); 360. 		    break; 361. 		case WAN_POLYMORPH: 362. 		    makeknown(WAN_POLYMORPH); 363. #ifdef SPELLS 364. 		case SPE_POLYMORPH: 365. #endif 366. 		    polyself; 367. 		    break; 368. 		case WAN_CANCELLATION: 369. #ifdef SPELLS 370. 		case SPE_CANCELLATION: 371. #endif 372. 		    for(otmp = invent; otmp; otmp = otmp->nobj) 373. 		       if(otmp != uball && otmp->otyp != AMULET_OF_YENDOR) 374. 			    otmp->spe = (obj->olet == WAND_SYM) ? -1 : 0; 375.  		    if(u.mtimedone) rehumanize; 376. 		    flags.botl = 1;  /* because of potential AC change */ 377. 		    find_ac; 378. 		    break; 379. 	       case WAN_MAKE_INVISIBLE: 380. 		    HInvis |= INTRINSIC; 381. 		    /* Tough luck if you cannot see invisible! */ 382.  		    if (!See_invisible) newsym(u.ux, u.uy); 383. 		    break; 384. 	       case WAN_SPEED_MONSTER: 385. 		    Fast |= INTRINSIC; 386. 		    break; 387. 	       case WAN_SLEEP: 388. 		    makeknown(WAN_SLEEP); 389. #ifdef SPELLS 390. 		case SPE_SLEEP: 391. #endif 392. 		    pline("The sleep ray hits you!"); 393. 		    nomul(-rn2(50)); 394. 		    break; 395. 		case WAN_SLOW_MONSTER: 396. #ifdef SPELLS 397. 		case SPE_SLOW_MONSTER: 398. #endif 399. 		    Fast = 0; 400. 		    break; 401. 		case WAN_TELEPORTATION: 402. #ifdef SPELLS 403. 		case SPE_TELEPORT_AWAY: 404. #endif 405. 		    tele; 406. 		    break; 407. 		case WAN_DEATH: 408. #ifdef SPELLS 409. 		case SPE_FINGER_OF_DEATH: 410. #endif 411. 		    killer = "death ray"; 412. 		    pline("You irradiate yourself with pure energy!"); 413. 		    pline("You die."); 414. 		    done("died"); 415. 		    break; 416. #ifdef SPELLS 417. 		case SPE_LIGHT: 418. 		    if(!Blind) { 419. 			pline("You've blinded yourself!"); 420. 			Blinded += rnd(100); 421. 			seeoff(0); 422. 		    }  423.  		    break; 424. 		case SPE_DIG: 425. 		case SPE_TURN_UNDEAD: 426. 		case SPE_DETECT_UNSEEN: 427. #endif 428. 	       case WAN_PROBING: 429. #ifdef PROBING 430. 		    ustatusline; 431. #else 432. 		    pline("Nothing happens."); 433. #endif 434. 		    break; 435. 		case WAN_DIGGING: 436. 		case WAN_UNDEAD_TURNING: 437. 		case WAN_NOTHING: 438. 		    break; 439. 		default: impossible("object %d used?",obj->otyp); 440. 	}  441.  	return(damage); 442. }  443.  #endif /* KAA /**/ 444.  445.  /* called for various wand and spell effects - M. Stephenson */ 446. weffects(obj) 447. 	register struct	obj	*obj; 448. {  449.  	xchar zx,zy; 450.  451.  	if(objects[obj->otyp].bits & IMMEDIATE) { 452. 		if(u.uswallow) 453. 			bhitm(u.ustuck, obj); 454. 		else if(u.dz) { 455. 			if(u.dz > 0 && o_at(u.ux,u.uy)) { 456. 				register struct obj *otmp; 457. 				  458.  				/* changed by GAN to hit all objects there */ 459. 				for(otmp = fobj; otmp ; otmp = otmp->nobj) 460. 					if(otmp->ox == u.ux &&  461.  					   otmp->oy == u.uy) 462. 						(void) bhito(otmp, obj); 463. 			}  464.  		} else 465. 			(void) bhit(u.dx,u.dy,rn1(8,6),0,bhitm,bhito,obj); 466. 	} else { 467. 	    switch(obj->otyp){ 468. 		case WAN_LIGHT: 469. #ifdef SPELLS 470. 		case SPE_LIGHT: 471. #endif 472. 			litroom(TRUE); 473. 			break; 474. 		case WAN_SECRET_DOOR_DETECTION: 475. #ifdef SPELLS 476. 		case SPE_DETECT_UNSEEN: 477. #endif 478. 			if(!findit) return; 479. 			break; 480. 		case WAN_CREATE_MONSTER: 481. 			{ register int cnt = 1; 482. 			if(!rn2(23)) cnt += rn2(7) + 1; 483. 			while(cnt--) 484. 			    (void) makemon((struct permonst *) 0, u.ux, u.uy); 485. 			}  486.  			break; 487. 		case WAN_WISHING: 488. 			if(u.uluck + rn2(5) < 0) { 489. 			    pline("Unfortunately, nothing happens."); 490. 			    break; 491. 			}  492.  			makewish; 493. 			break; 494. 		case WAN_DIGGING: 495. #ifdef SPELLS 496. 		case SPE_DIG: 497. #endif 498. 			/* Original effect (approximately): 499. 			 * from CORR: dig until we pierce a wall 500. 			 * from ROOM: piece wall and dig until we reach 501. 			 * an ACCESSIBLE place. 502. 			 * Currently: dig for digdepth positions; 503. 			 * also down on request of Lennart Augustsson. 504. 			 */  505.  			{ register struct rm *room; 506. 			  register int digdepth; 507. 			if(u.uswallow) { 508. 				register struct monst *mtmp = u.ustuck; 509.  510.  				pline("You pierce %s's stomach wall!",  511.  					monnam(mtmp)); 512. 				mtmp->mhp = 1;	/* almost dead */ 513. 				unstuck(mtmp); 514. 				mnexto(mtmp); 515. 				break; 516. 			}  517.  			if(u.dz) { 518. 			    if(u.dz < 0) { 519. 				pline("You loosen a rock from the ceiling."); 520. 				pline("It falls on your head!"); 521. 				losehp(1, "falling rock"); 522. 				mksobj_at((int)ROCK, u.ux, u.uy); 523. 				fobj->quan = 1; 524. 				stackobj(fobj); 525. 				if(Invisible) newsym(u.ux, u.uy); 526. 			    } else { 527. 				dighole; 528. 			    }  529.  			    break; 530. 			}  531.  			zx = u.ux+u.dx; 532. 			zy = u.uy+u.dy; 533. 			digdepth = 8 + rn2(18); 534. 			Tmp_at(-1, '*');	/* open call */ 535. 			while(--digdepth >= 0) { 536. 				if(!isok(zx,zy)) break; 537. 				room = &levl[zx][zy]; 538. 				Tmp_at(zx,zy); 539. 				if(!xdnstair){ 540. 					if(zx < 3 || zx > COLNO-3 ||  541.  					    zy < 3 || zy > ROWNO-3) 542. 						break; 543. 					if(room->typ == HWALL ||  544.  					    room->typ == VWALL){ 545. 						room->typ = ROOM; 546. 						break; 547. 					}  548.  				} else 549. 				if(room->typ == HWALL || room->typ == VWALL ||  550.  				   room->typ == SDOOR || room->typ == LDOOR){ 551. 					room->typ = DOOR; 552. 					digdepth -= 2; 553. 				} else 554. 				if(room->typ == SCORR || !room->typ) { 555. 					room->typ = CORR; 556. 					digdepth--; 557. 				}  558.  				mnewsym(zx,zy); 559. 				zx += u.dx; 560. 				zy += u.dy; 561. 			}  562.  			mnewsym(zx,zy);	/* not always necessary */ 563. 			Tmp_at(-1,-1);	/* closing call */ 564. 			break; 565. 			}  566.  		default: 567. #ifdef SPELLS 568. 			if((int) obj->otyp >= SPE_MAGIC_MISSILE) { 569.  570.  				buzz((int) obj->otyp - SPE_MAGIC_MISSILE + 10,  571.  					u.ux, u.uy, u.dx, u.dy); 572. 			} else 573. #endif 574.  575.  				buzz((int) obj->otyp - WAN_MAGIC_MISSILE,  576.  					u.ux, u.uy, u.dx, u.dy); 577. 			break; 578. 		}  579.  		if(!objects[obj->otyp].oc_name_known) { 580. 			objects[obj->otyp].oc_name_known = 1; 581. 			more_experienced(0,10); 582. 		}  583.  	}  584.  	return; 585. }  586.   587.  char * 588. exclam(force) 589. register int force; 590. {  591.  	/* force == 0 occurs e.g. with sleep ray */ 592. 	/* note that large force is usual with wands so that !! would 593. 		require information about hand/weapon/wand */ 594. 	return( (force < 0) ? "?" : (force <= 4) ? "." : "!" ); 595. }  596.   597.  hit(str,mtmp,force) 598. register char *str; 599. register struct monst *mtmp; 600. register char *force;		/* usually either "." or "!" */ 601.  {  602.  	if(!cansee(mtmp->mx,mtmp->my)) pline("The %s hits it.", str); 603. 	else pline("The %s hits %s%s", str, monnam(mtmp), force); 604. }  605.   606.  miss(str,mtmp) 607. register char *str; 608. register struct monst *mtmp; 609. {  610.  	if(!cansee(mtmp->mx,mtmp->my)) pline("The %s misses it.",str); 611. 	else pline("The %s misses %s.",str,monnam(mtmp)); 612. }  613.   614.  /* bhit: called when a weapon is thrown (sym = obj->olet) or when an  615. IMMEDIATE wand is zapped (sym = 0); the weapon falls down at end of 616. range or when a monster is hit; the monster is returned, and bhitpos 617.    is set to the final position of the weapon thrown; the ray of a wand 618.    may affect several objects and monsters on its path - for each of  619. these an argument function is called. */ 620.  /* check !u.uswallow before calling bhit */ 621.  622.  struct monst * 623. bhit(ddx,ddy,range,sym,fhitm,fhito,obj) 624. register int ddx,ddy,range;		/* direction and range */ 625. char sym;				/* symbol displayed on path */ 626. int (*fhitm), (*fhito);		/* fns called when mon/obj hit */ 627. struct obj *obj;			/* 2nd arg to fhitm/fhito */ 628. {  629.  	register struct monst *mtmp; 630. 	register struct obj *otmp; 631. 	register int typ; 632.  633.  	bhitpos.x = u.ux; 634. 	bhitpos.y = u.uy; 635.  636.  	if(sym) tmp_at(-1, sym);	/* open call */ 637. 	while(range-- > 0) { 638. 		bhitpos.x += ddx; 639. 		bhitpos.y += ddy; 640. 		typ = levl[bhitpos.x][bhitpos.y].typ; 641. 		if(mtmp = m_at(bhitpos.x,bhitpos.y)){ 642. 			if(sym) { 643. 				tmp_at(-1, -1);	/* close call */ 644. 				return(mtmp); 645. 			}  646.  			(*fhitm)(mtmp, obj); 647. 			range -= 3; 648. 		}  649.  		/* modified by GAN to hit all objects */ 650. 		if(fhito && o_at(bhitpos.x,bhitpos.y)){ 651. 			int hitanything = 0; 652. 			for(otmp = fobj; otmp; otmp = otmp->nobj) 653. 				if(otmp->ox == bhitpos.x &&  654.  				   otmp->oy == bhitpos.y)  655. hitanything += (*fhito)(otmp, obj); 656. 			if(hitanything)	range--; 657. 		}  658.  		if(!ZAP_POS(typ)) { 659. 			bhitpos.x -= ddx; 660. 			bhitpos.y -= ddy; 661. 			break; 662. 		}  663.  		if(sym) tmp_at(bhitpos.x, bhitpos.y); 664. #ifdef SINKS 665. 		if(sym && IS_SINK(typ)) 666. 			break;	/* physical objects fall onto sink */ 667. #endif 668. 	}  669.   670.  	/* leave last symbol unless in a pool */ 671. 	if(sym) 672. 	   tmp_at(-1, (levl[bhitpos.x][bhitpos.y].typ == POOL) ? -1 : 0); 673. 	return(0); 674. }  675.   676.  struct monst * 677. boomhit(dx,dy) { 678. 	register int i, ct; 679. 	register struct monst *mtmp; 680. 	char sym = ')';  681.  	extern schar xdir[], ydir[];  682.   683.  	bhitpos.x = u.ux;  684.  	bhitpos.y = u.uy;  685.   686.  	for(i=0; i<8; i++) if(xdir[i] == dx && ydir[i] == dy) break;  687.  	tmp_at(-1, sym);	/* open call */  688.  	for(ct=0; ct<10; ct++) {  689.  		if(i == 8) i = 0;  690.  		sym = ')' + '(' - sym;  691.  		tmp_at(-2, sym);	/* change let call */  692.  		dx = xdir[i];  693.  		dy = ydir[i];  694.  		bhitpos.x += dx;  695.  		bhitpos.y += dy;  696.  		if(mtmp = m_at(bhitpos.x, bhitpos.y)){  697.  			tmp_at(-1,-1);  698.  			return(mtmp);  699.  		}  700.  		if(!ZAP_POS(levl[bhitpos.x][bhitpos.y].typ)) {  701.  			bhitpos.x -= dx;  702.  			bhitpos.y -= dy;  703.  			break;  704.  		}  705.  		if(bhitpos.x == u.ux && bhitpos.y == u.uy) { /* ct == 9 */  706.  			if(rn2(20) >= 10+u.ulevel){	/* we hit ourselves */  707.  				(void) thitu(10, rnd(10), "boomerang"); 708. 				break; 709. 			} else {	/* we catch it */ 710. 				tmp_at(-1,-1); 711. 				pline("Skillfully, you catch the boomerang."); 712. 				return(&youmonst); 713. 			}  714.  		}  715.  		tmp_at(bhitpos.x, bhitpos.y); 716. 		if(ct % 5 != 0) i++; 717. #ifdef SINKS 718. 		if(IS_SINK(levl[bhitpos.x][bhitpos.y].typ)) 719. 			break;	/* boomerang falls on sink */ 720. #endif 721. 	}  722.  	tmp_at(-1, -1);	/* do not leave last symbol */ 723. 	return(0); 724. }  725.   726.  uchar 727. dirlet(dx,dy) register dx,dy; { 728. 	return 729. 		(dx == dy) ? '\\' : (dx && dy) ? '/' : dx ? HWALL_SYM : VWALL_SYM; 730. }  731.   732.  /* type == 0 to 9     : you shooting a wand      */ 733. /* type == 10 to 19   : you casting a spell      */ 734. /* type == 20         : you breathing fire       */ 735. /* type == -1 to -9   : bolts sent out by wizard */ 736. /* type == -10 to -19 : dragon breathing at you  */ 737. /* called with dx = dy = 0 with vertical bolts */ 738. buzz(type,sx,sy,dx,dy) 739. register int type; 740. register xchar sx,sy; 741. register int dx,dy; 742. {  743.  	int abstype = (type == 20) ? 1 : abs(type) % 10; 744. 	int txttype = (type == 20) ? 21 : (type>-10) ? abs(type) : abs(type)+10; 745. 	register char *fltxt = fl[txttype]; 746. 	struct rm *lev; 747. 	xchar range; 748. 	struct monst *mon; 749.  750.  	if(u.uswallow) { 751. 		register int tmp; 752.  753.  		if(type < 0) return; 754. 		tmp = zhit(u.ustuck, type); 755. 		if(!u.ustuck)	u.uswallow = 0; 756. 		else	pline("The %s rips into %s%s",  757.  				fltxt, monnam(u.ustuck), exclam(tmp)); 758. 		return; 759. 	}  760.  	if(type < 0) pru; 761. 	range = rn1(7,7); 762. 	Tmp_at(-1, dirlet(dx,dy));	/* open call */ 763. 	while(range-- > 0) { 764. 		sx += dx; 765. 		sy += dy; 766. 		if((lev = &levl[sx][sy])->typ) Tmp_at(sx,sy); 767. 		else { 768. 			int bounce = 0; 769. 			if(cansee(sx-dx,sy-dy)) 770. 				pline("The %s bounces!", fltxt); 771. 			if(ZAP_POS(levl[sx][sy-dy].typ)) 772. 				bounce = 1; 773. 			if(ZAP_POS(levl[sx-dx][sy].typ)) { 774. 				if(!bounce || rn2(2)) bounce = 2; 775. 			}  776.  			switch(bounce){ 777. 			case 0: 778. 				dx = -dx; 779. 				dy = -dy; 780. 				continue; 781. 			case 1: 782. 				dy = -dy; 783. 				sx -= dx; 784. 				break; 785. 			case 2: 786. 				dx = -dx; 787. 				sy -= dy; 788. 				break; 789. 			}  790.  			Tmp_at(-2,dirlet(dx,dy)); 791. 			continue; 792. 		}  793.  		if(lev->typ == POOL && abstype == 1 /* fire */) { 794. 			range -= 3; 795. 			lev->typ = ROOM; 796. 			if(cansee(sx,sy)) { 797. 				mnewsym(sx,sy); 798. 				pline("The water evaporates."); 799. 			} else 800. 				pline("You hear a hissing sound."); 801. 		}  802.  		if(lev->typ == POOL && abstype == 3 /* cold */) { 803. 			range -= 3; 804. 			lev->typ = ROOM; 805. 			if(cansee(sx,sy)) { 806. 				mnewsym(sx,sy); 807. 				pline("The water freezes."); 808. 			} else 809. 				pline("You hear a cracking sound."); 810. 		}  811.  		if(o_at(sx,sy) && abstype == 1) 812. 			if(burn_floor_scrolls(sx,sy) && cansee(sx,sy))  { 813. 				mnewsym(sx,sy); 814. 				pline("You see a puff of smoke."); 815. 			}  816.  		if((mon = m_at(sx,sy)) &&  817.  		   /* dragons don't hit themselves ??? */  818.  		   (type > -10 || mon->data->mlet != 'D')) { 819. 			wakeup(mon); 820. 			if(rnd(20) < 18 + mon->data->ac) { 821. 				register int tmp = zhit(mon,abstype); 822. 				if(mon->mhp < 1) { 823. 					if(type < 0) { 824. 					    if(cansee(mon->mx,mon->my)) 825. 					      pline("%s is killed by the %s!",  826.  						Monnam(mon), fltxt); 827. 					    mondied(mon); 828. 					} else 829. 					    killed(mon); 830. 				} else 831. 					hit(fltxt, mon, exclam(tmp)); 832. 				range -= 2; 833. 			} else 834. 				miss(fltxt,mon); 835. 		} else if(sx == u.ux && sy == u.uy) { 836. 			nomul(0); 837. 			if(rnd(20) < 18+u.uac) { 838. 				register int dam = 0; 839. 				range -= 2; 840. 				pline("The %s hits you!",fltxt); 841. 				switch(abstype) { 842. 				case 0:		/* magic missile */ 843. 					dam = d(2,6); 844.   					break; 845. 				case 1:		/* fire */ 846. 					if(Fire_resistance) 847. 						pline("You don't feel hot!"); 848. 					else dam = d(6,6); 849. 					if(!rn2(3)) { 850. 						boil_potions; 851. 						burn_scrolls; 852. 					}  853.  					break; 854. 				case 2:		/* sleep */ 855. 					nomul(-rnd(25)); /* sleep ray */ 856. 					break; 857. 				case 3:		/* cold */ 858. 					if(Cold_resistance) 859. 						pline("You don't feel cold!"); 860. 					else dam = d(6,6); 861. 					if(!rn2(3)) 862. 						freeze_potions; 863. 					break; 864. 				case 4:		/* death */ 865. 					u.uhp = -1; 866. 					break; 867. 				case 5:		/* lightning */ 868. 					if(Shock_resistance) 869. 						pline("You aren't affected!"); 870. 					else dam = d(6,6); 871. 					break; 872. 				case 6:		/* poison */ 873. 					poisoned("blast", "poisoned blast"); 874. 					break; 875. 				case 7:		/* acid */ 876. 					pline("The acid burns!"); 877. 					dam = d(6,6); 878. 					if(!rn2(6)) corrode_weapon; 879. 					if(!rn2(6)) corrode_armor; 880. 					break; 881. 				}  882.  				losehp(dam,fltxt); 883. 			} else pline("The %s whizzes by you!",fltxt); 884. 			if (abstype == 5 && !Blind) { /* LIGHTNING */ 885. 		    		pline("You are blinded by the flash!"); 886. 				Blinded += rnd(50); 887. 				seeoff(0); 888. 			}  889.  			stop_occupation; 890. 		}  891.  		if(!ZAP_POS(lev->typ)) { 892. 			int bounce = 0, rmn; 893. 			if(cansee(sx,sy)) pline("The %s bounces!",fltxt); 894. 			range--; 895. 			if(!dx || !dy || !rn2(20)){ 896. 				dx = -dx; 897. 				dy = -dy; 898. 			} else { 899. 			  if(ZAP_POS(rmn = levl[sx][sy-dy].typ) &&  900.  			    (IS_ROOM(rmn) || ZAP_POS(levl[sx+dx][sy-dy].typ))) 901. 				bounce = 1; 902. 			  if(ZAP_POS(rmn = levl[sx-dx][sy].typ) &&  903.  			    (IS_ROOM(rmn) || ZAP_POS(levl[sx-dx][sy+dy].typ))) 904. 				if(!bounce || rn2(2)) 905. 					bounce = 2; 906.  907.  			  switch(bounce){ 908. 			  case 0: 909. 				dy = -dy; 910. 				dx = -dx; 911. 				break; 912. 			  case 1: 913. 				dy = -dy; 914. 				break; 915. 			  case 2: 916. 				dx = -dx; 917. 				break; 918. 			  }  919.  			  Tmp_at(-2, dirlet(dx,dy)); 920. 			}  921.  		}  922.  	}  923.  	Tmp_at(-1,-1); 924. }  925.   926.  zhit(mon,type)			/* returns damage to mon */ 927. register struct monst *mon; 928. register type; 929. {  930.  	register int tmp = 0; 931.  932.  	switch(type) { 933. 	case 0:			/* magic missile (wand) */ 934. 	case 10:		/* (spell) */ 935. 	case -10:		/* (breath) */ 936. 		tmp = d(2,6); 937. 		break; 938. 	case 1:			/* fire wand */ 939. 	case 11:		/* fire spell */ 940. 	case -11:		/* fire breath */ 941. 	case 20:		/* you breathing fire */ 942. 		if(index("Dg", mon->data->mlet)) break; 943. 		tmp = d(6,6); 944. 		if(index("YF", mon->data->mlet)) tmp += 7; 945. 		break; 946. 	case 2:			/* sleep wand */ 947. 	case 12:		/* sleep spell */ 948. 	case -12:		/* sleep breath */ 949. 		tmp = 0; 950. 		if(!resist(mon, (type == 2) ? '/' : '+', 0, NOTELL)) 951. 			mon->mfroz = 1; 952. 		break; 953. 	case 3:			/* cold wand */ 954. 	case 13:		/* cold spell */ 955. 	case -13:		/* cold breath */ 956. 		if(index("YFgf", mon->data->mlet)) break; 957. 		tmp = d(6,6); 958. 		if(mon->data->mlet == 'D') tmp += 7; 959. 		break; 960. 	case 4:			/* death wand */ 961. 	case 14:		/* death spell */ 962. 	case -14:		/* death breath */ 963. 		if(index(UNDEAD, mon->data->mlet)) break; 964. 		tmp = mon->mhp+1; 965. 		break; 966. 	case 5:			/* lightning wand */ 967. 	case 15:		/* lightning spell */ 968. 	case -15:		/* lightning breath */ 969. 		if(index("g;", mon->data->mlet)) break; 970. 		tmp = d(6,6); 971. 		mon->mblinded += rnd(50); 972. 		break; 973. 	case 6:			/* poison wand */ 974. 	case 16:		/* poison spell */ 975. 	case -16:		/* poison breath */ 976. 		if(index("abcghikqsuvxyADFQSVWXZ&", mon->data->mlet)) break; 977. 		tmp = d(6,6); 978. 		break; 979. 	case 7:			/* acid wand */ 980. 	case 17:		/* acid spell */ 981. 	case -17:		/* acid breath */ 982. 		if(index("a", mon->data->mlet)) break; 983. 		tmp = d(6,6); 984. 		break; 985. 	}  986.  	if (type >= 0 && type != 20) 987. 		if (resist(mon, (type < 10) ? '/' : '+', 0, NOTELL)) tmp /= 2; 988. 	mon->mhp -= tmp; 989. 	return(tmp); 990. }  991.   992.  #define	CORPSE_I_TO_C(otyp)	(char) ((otyp >= DEAD_ACID_BLOB)\  993.  		     ?  'a' + (otyp - DEAD_ACID_BLOB)\  994.  		     :	'@' + (otyp - DEAD_HUMAN)) 995. revive(obj) 996. register struct obj *obj; 997. {  998.  	register struct monst *mtmp; 999. 	register int let; 1000. 1001. 	if(obj->olet == FOOD_SYM && obj->otyp > CORPSE) { 1002. #ifdef KAA 1003. 		switch (obj->otyp) { 1004. 			case DEAD_HUMAN: { let = 'Z'; break; } 1005. 			case DEAD_GIANT: { let = '9'; break; } 1006. 			case DEAD_DEMON: { let = '&'; break; } 1007. 			default: let = CORPSE_I_TO_C(obj->otyp); 1008. 		} 1009. 		delobj(obj); 1010. /* Originally there was a bug which caused the object not to be erased 1011.   from the screen. This happened because first the monster got created, 1012.   then the corpse removed. Although delobj called unpobj, the object 1013.   didn't get erased from the screen because the monster was sitting on top 1014.   of it. Solution: place the delobj call before the mkmon call. */ 1015. 		mtmp = mkmon_at(let, obj->ox, obj->oy); 1016. 		if (mtmp && obj->otyp == DEAD_HUMAN) { 1017. 			mtmp->mhp = mtmp->mhpmax = 100; 1018. 			mtmp->mspeed = MFAST; 1019. 		} 1020. #endif 1021. 		/* do not (yet) revive shopkeepers */ 1022. 		/* Note: this might conceivably produce two monsters 1023. 			at the same position - strange, but harmless */ 1024. #ifndef KAA 1025. 		delobj(obj); 1026. 		mtmp = mkmon_at(CORPSE_I_TO_C(obj->otyp),obj->ox,obj->oy); 1027. #endif 1028. 	} 1029. 	return(!!mtmp);		/* TRUE if some monster created */ 1030. } 1031.  1032. rloco(obj) 1033. register struct obj *obj; 1034. { 1035. 	register tx,ty,otx,oty; 1036. 1037. 	otx = obj->ox; 1038. 	oty = obj->oy; 1039. 	do { 1040. 		tx = rn1(COLNO-3,2); 1041. 		ty = rn2(ROWNO); 1042. 	} while(!goodpos(tx,ty)); 1043. 	obj->ox = tx; 1044. 	obj->oy = ty; 1045. 	if(cansee(otx,oty)) 1046. 		newsym(otx,oty); 1047. } 1048.  1049. fracture_rock(obj)	/* fractured by pick-axe or wand of striking */ 1050. register struct obj *obj;			  /* no texts here! */ 1051. {  1052. 	/* unpobj(obj); */ 1053. 	obj->otyp = ROCK; 1054. 	obj->quan = 7 + rn2(60); 1055. 	obj->owt = weight(obj); 1056. 	obj->olet = WEAPON_SYM; 1057. 	if(cansee(obj->ox,obj->oy)) 1058. 		prl(obj->ox,obj->oy); 1059. } 1060.  1061. boil_potions 1062. { 1063. 	register struct obj *obj, *obj2; 1064. 	register int scrquan, i; 1065. 1066. 	for(obj = invent; obj; obj = obj2) { 1067. 		obj2 = obj->nobj; 1068. 		if(obj->olet == POTION_SYM) { 1069. 			scrquan = obj->quan; 1070. 			for(i = 1; i <= scrquan; i++) 1071. 				if(!rn2(3)) { 1072. 					pline("%s %s boils and explodes!", 1073. 					(obj->quan != 1) ? "One of your" : "Your",  1074. 					xname(obj)); 1075. 					potionbreathe(obj); 1076. 					useup(obj); 1077. 					losehp(rn2(4),"boiling potion"); 1078. 				} 1079. 		}  1080. 	}  1081. }  1082.  1083. freeze_potions { 1084. 	register struct obj *obj, *obj2; 1085. 	register int scrquan, i; 1086. 1087. 	for(obj = invent; obj; obj = obj2) { 1088. 		obj2 = obj->nobj; 1089. 		if(obj->olet == POTION_SYM) { 1090. 			scrquan = obj->quan; 1091. 			for(i = 1; i <= scrquan; i++) 1092. 				if(!rn2(3)) { 1093. 					pline("%s %s freezes and shatters!", 1094. 		(obj->quan != 1) ? "One of your" : "Your", xname(obj)); 1095. 					useup(obj); 1096. 					losehp(rn2(4),"shattered potion"); 1097. 				} 1098. 		}  1099. 	}  1100. }  1101.  1102. burn_scrolls 1103. { 1104. 	register struct obj *obj, *obj2; 1105. 	register int cnt = 0; 1106. 	register int scrquan, i; 1107. 1108. 	for(obj = invent; obj; obj = obj2) { 1109. 		obj2 = obj->nobj; 1110. 		if(obj->olet == SCROLL_SYM) { 1111. 			scrquan = obj->quan; 1112. 			for(i = 1; i <= scrquan ; i++) 1113. 				if(!rn2(3)) { 1114. 					cnt++; 1115. 					useup(obj); 1116. 				} 1117. 		}  1118. 	}  1119.  1120. 	/* "Killed by a burning scrolls" doesn't make too much sense. KAA*/ 1121. 	if (cnt) { 1122. 		pline("%s of your scrolls catch%s fire!", 1123. 		cnt==1 ? "One" : "Some", cnt==1 ? "es" : ""); 1124. 		if(Fire_resistance) 1125. 			pline("You aren't hurt!"); 1126. 		else 1127. 			losehp(cnt,"burning scroll"); 1128. 	} 1129. }  1130.  1131. resist(mtmp, olet, damage, tell) 1132. register struct monst	*mtmp; 1133. register char	olet; 1134. register int	damage, tell; 1135. { 1136. register int	resisted = 0; 1137. #ifdef HARD 1138. register int	level; 1139. 1140. 	switch(olet)  { 1141. 1142. 	    case '/':	level = 8; 1143. 			break; 1144. 1145. 	    case '?':	level = 6; 1146. 			break; 1147. 1148. 	    case '!':	level = 5; 1149. 			break; 1150. 1151. 	    default:	level = u.ulevel; 1152. 			break; 1153. 	} 1154.  1155. 	resisted = (rn2(100) - mtmp->data->mlevel + level) < mtmp->data->mr; 1156. 	if(resisted) { 1157. 1158. 		if(tell) pline("The %s resists!", mtmp->data->mname); 1159. 		mtmp->mhp -= damage/2; 1160. 	} else 1161. #endif 1162. 		mtmp->mhp -= damage; 1163. 1164. 	if(mtmp->mhp < 1) killed(mtmp); 1165. 	return(resisted); 1166. } 1167.  1168. /*  1169.  * burn scrolls on floor at position x,y 1170. * return the number of scrolls burned 1171. */  1172. int 1173. burn_floor_scrolls(x,y) 1174. { 1175. 	register struct obj *obj, *obj2; 1176. 	register int scrquan, i; 1177. register int cnt = 0; 1178. 1179. 	for(obj = fobj; obj; obj = obj2) { 1180. 		obj2 = obj->nobj; 1181. 		/* Bug fix - KAA */ 1182. 		if(obj->ox == x && obj->oy == y && obj->olet == SCROLL_SYM) { 1183. 			scrquan = obj->quan; 1184. 			for(i = 1; i <= scrquan ; i++) 1185. 				if(!rn2(3)) { 1186. 					cnt++; 1187. 					useupf(obj); 1188. 				} 1189. 		}  1190. 	}  1191. 	return(cnt); 1192. } 1193.  1194. makewish	/* Separated as there are now 3 places you can wish at. */ 1195. {  1196. 	char buf[BUFSZ]; 1197. 	register struct obj *otmp; 1198. 	extern struct obj *readobjnam, *addinv; 1199. 	int wishquan, mergquan; 1200. 1201. 	pline("You may wish for an object. What do you want? "); 1202. 	getlin(buf); 1203. 	if(buf[0] == '\033') buf[0] = 0; 1204. 	otmp = readobjnam(buf); 1205. #ifdef KAA 1206. /* Wishing for gold has been implemented in readobjnam and returns 0 1207.   if successful. */ 1208. 	if (otmp) { 1209. #endif 1210. 		wishquan = otmp->quan; 1211. 		otmp = addinv(otmp); 1212. 		/* indented lines added below so quantity shows 1213. 		 * right. GAN - 11/13/86 1214. 		 */ 1215. 		  mergquan = otmp->quan; 1216. 		 otmp->quan = wishquan; /* to fool prinv */ 1217. 		prinv(otmp); 1218. 		 otmp->quan = mergquan; 1219. #ifdef KAA 1220. 	} 1221. #endif 1222. }