Source:NetHack 1.3d/shk.c

Below is the full text to shk.c from the source code of NetHack 1.3d. To link to a particular line, write [[NetHack 1.3d/shk.c#line123 ]], for example.

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

1.   /*	SCCS Id: @(#)shk.c	1.3	87/07/14 2.   /* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */ 3.    /* shk.c - version 1.0.3 */ 4.    5.    #include "hack.h"  6.    #ifdef QUEST 7.   int shlevel = 0; 8.   struct monst *shopkeeper = 0; 9.   struct obj *billobjs = 0; 10.  obfree(obj,merge) register struct obj *obj, *merge; { 11.  	free((char *) obj); 12.  }  13.   inshop{ return(0); } 14.  addtobill{} 15.  subfrombill{} 16.  splitbill{} 17.  dopay{ return(0); } 18.  paybill{} 19.  doinvbill{ return(0); } 20.  shkdead{} 21.  shkcatch{ return(0); } 22.  shk_move{ return(0); } 23.  replshk(mtmp,mtmp2) struct monst *mtmp, *mtmp2; {} 24.  char *shkname{ return(""); } 25.   26.   #else 27.  #include	"mfndpos.h"  28. #include	"mkroom.h" 29. #include	"eshk.h" 30. 31.  #define	ESHK(mon)	((struct eshk *)(&(mon->mextra[0]))) 32.  #define	NOTANGRY(mon)	mon->mpeaceful 33.  #define	ANGRY(mon)	!NOTANGRY(mon) 34.   35.   extern char plname[], *xname; 36.  extern struct obj *o_on, *bp_to_obj; 37.   38.   /* Descriptor of current shopkeeper. Note that the bill need not be 39. per-shopkeeper, since it is valid only when in a shop. */ 40.   static struct monst *shopkeeper = 0; 41.  static struct bill_x *bill; 42.  static int shlevel = 0;	/* level of this shopkeeper */ 43.         struct obj *billobjs;	/* objects on bill with bp->useup */ 44.  				/* only accessed here and by save & restore */ 45.  static long int total;		/* filled by addupbill */ 46.  static long int followmsg;	/* last time of follow message */ 47.  static setpaid, findshk, dopayobj, getprice, realhunger; 48.   49.   /*  50.   	invariants: obj->unpaid iff onbill(obj) [unless bp->useup] 51.  		obj->quan <= bp->bquan 52.   */  53.    54.    55.   char shtypes[] = {	/* 9 shoptypes: 8 specialized, 1 mixed */ 56.  	RING_SYM, WAND_SYM, 57.  #ifdef SPELLS 58.  	SPBOOK_SYM, 59.  #endif 60.  	WEAPON_SYM, FOOD_SYM, SCROLL_SYM, POTION_SYM, ARMOR_SYM, 0 61.  };  62.   char *shopnam[] = { 63.  	"engagement ring", "walking cane", 64.  #ifdef SPELLS 65.  	"rare book", 66.  #endif 67.  	"antique weapon", "delicatessen", "second hand book", 68.  	"liquor", "used armor", "assorted antiques" 69.  };  70.    71.   char * 72.  shkname(mtmp)				/* called in do_name.c */ 73.  register struct monst *mtmp; 74.  {  75.   	return(ESHK(mtmp)->shknam); 76.  }  77.    78.   shkdead(mtmp)				/* called in mon.c */ 79.  register struct monst *mtmp; 80.  {  81.   	register struct eshk *eshk = ESHK(mtmp); 82.   83.   	if(eshk->shoplevel == dlevel) 84.  		rooms[eshk->shoproom].rtype = 0; 85.  	if(mtmp == shopkeeper) { 86.  		setpaid; 87.  		shopkeeper = 0; 88.  		bill = (struct bill_x *) -1000;	/* dump core when referenced */ 89.  	}  90.   }  91.    92.   replshk(mtmp,mtmp2) 93.  register struct monst *mtmp, *mtmp2; 94.  {  95.   	if(mtmp == shopkeeper) { 96.  		shopkeeper = mtmp2; 97.  		bill = &(ESHK(shopkeeper)->bill[0]); 98.  	}  99.   }  100.   101.  static 102. setpaid{	/* caller has checked that shopkeeper exists */ 103. 		/* either we paid or left the shop or he just died */ 104. register struct obj *obj; 105. register struct monst *mtmp; 106. 	for(obj = invent; obj; obj = obj->nobj) 107. 		obj->unpaid = 0; 108. 	for(obj = fobj; obj; obj = obj->nobj) 109. 		obj->unpaid = 0; 110. 	for(obj = fcobj; obj; obj = obj->nobj) 111. 		obj->unpaid = 0; 112. 	for(mtmp = fmon; mtmp; mtmp = mtmp->nmon) 113. 		for(obj = mtmp->minvent; obj; obj = obj->nobj) 114. 			obj->unpaid = 0; 115. 	for(mtmp = fallen_down; mtmp; mtmp = mtmp->nmon) 116. 		for(obj = mtmp->minvent; obj; obj = obj->nobj) 117. 			obj->unpaid = 0; 118. 	while(obj = billobjs){ 119. 		billobjs = obj->nobj; 120. 		free((char *) obj); 121. 	}  122.  	ESHK(shopkeeper)->billct = 0; 123. }  124.   125.  static 126. addupbill{	/* delivers result in total */ 127. 		/* caller has checked that shopkeeper exists */ 128. register ct = ESHK(shopkeeper)->billct; 129. register struct bill_x *bp = bill; 130. 	total = 0; 131. 	while(ct--){ 132. 		total += bp->price * bp->bquan; 133. 		bp++; 134. 	}  135.  }  136.   137.  inshop{ 138. register roomno = inroom(u.ux,u.uy); 139.  140.  	/* Did we just leave a shop? */ 141.  	if(u.uinshop &&  142.  	    (u.uinshop != roomno + 1 || shlevel != dlevel || !shopkeeper)) { 143.  144.  	/* This is part of the bugfix for shopkeepers not having their 145. 	 * bill paid. As reported by ab@unido -dgk 146. 	 * I made this standard due to the KOPS code below. -mrs 147. 	 */  148.  		if(shopkeeper) { 149. 		    if(ESHK(shopkeeper)->billct) { 150. 			if(inroom(shopkeeper->mx, shopkeeper->my)  151.  			    == u.uinshop - 1)	/* ab@unido */ 152. 			    pline("Somehow you escaped the shop without paying!"); 153. 			addupbill; 154. 			pline("You stole for a total worth of %ld zorkmids.",  155.  				total); 156. 			ESHK(shopkeeper)->robbed += total; 157. #ifdef KOPS 158. 			/* Keystone Kops srt@ucla */ 159. 			pline("An alarm sounds throughout the dungeon!"); 160. 			pline("The Kops are after you!"); 161. #endif 162. 			setpaid; 163. 			if((rooms[ESHK(shopkeeper)->shoproom].rtype == GENERAL)  164.  			    == (rn2(3) == 0)) 165. 			    ESHK(shopkeeper)->following = 1; 166. #ifdef KOPS 167. 			{  168.  			    coord enexto; 169. 			    coord mm; 170. 			    register int cnt = dlevel + rnd(3); 171. 			    /* Create a swarm near the staircase */ 172. 			    mm.x = xdnstair; 173. 			    mm.y = ydnstair; 174. 			    while(cnt--) { 175. 				    mm = enexto(mm.x, mm.y); 176. 				    (void) mkmon_at('K', mm.x, mm.y); 177. 			    }  178.  			    /* Create a swarm near the shopkeeper */ 179. 			    cnt = dlevel + rnd(3); 180. 			    mm.x = shopkeeper->mx; 181. 			    mm.y = shopkeeper->my; 182. 			    while(cnt--) { 183. 				    mm = enexto(mm.x, mm.y); 184. 				    (void) mkmon_at('K', mm.x, mm.y); 185. 			    }  186.  			}  187.  #endif 188. 		    }  189.  		    shopkeeper = 0; 190. 		    shlevel = 0; 191. 		}  192.  		u.uinshop = 0; 193. 	}  194.   195.  	/* Did we just enter a zoo of some kind? */ 196.  	if(roomno >= 0) { 197. 		register int rt = rooms[roomno].rtype; 198. 		register struct monst *mtmp; 199. 		if(rt == ZOO) { 200. 			pline("Welcome to David's treasure zoo!"); 201. 		} else 202. 		if(rt == SWAMP) { 203. 			pline("It looks rather muddy down here."); 204. 		} else 205. 		if(rt == COURT) { 206. 			pline("You are in an opulant throne room!"); 207. 		} else 208. 		if(rt == MORGUE) { 209. 			if(midnight) 210. 				pline("Go away! Go away!"); 211. 			else 212. 				pline("You get an uncanny feeling ..."); 213. 		} else 214. 			rt = 0; 215. 		if(rt != 0) { 216. 			rooms[roomno].rtype = 0; 217. 			for(mtmp = fmon; mtmp; mtmp = mtmp->nmon) 218. 				if(rt != ZOO || !rn2(3)) 219. 					mtmp->msleep = 0; 220. 		}  221.  	}  222.   223.  	/* Did we just enter a shop? */ 224.  	if(roomno >= 0 && rooms[roomno].rtype >= 8) { 225. 	    if(shlevel != dlevel || !shopkeeper  226.  				 || ESHK(shopkeeper)->shoproom != roomno) 227. 		findshk(roomno); 228. 	    if(!shopkeeper) { 229. 		rooms[roomno].rtype = 0; 230. 		u.uinshop = 0; 231. 	    } else if(!u.uinshop){ 232. 		if(!ESHK(shopkeeper)->visitct ||  233.  		    strncmp(ESHK(shopkeeper)->customer, plname, PL_NSIZ)){ 234.  235.  		    /* He seems to be new here */ 236. 		    ESHK(shopkeeper)->visitct = 0; 237. 		    ESHK(shopkeeper)->following = 0; 238. 		    (void) strncpy(ESHK(shopkeeper)->customer,plname,PL_NSIZ); 239. 		    NOTANGRY(shopkeeper) = 1; 240. 		}  241.  		if(!ESHK(shopkeeper)->following) { 242. 		    boolean box, pick; 243.  244.  		    pline("Hello %s! Welcome%s to %s's %s shop!",  245.  			plname,  246.  			ESHK(shopkeeper)->visitct++ ? " again" : "",  247.  			shkname(shopkeeper),  248.  			shopnam[rooms[ESHK(shopkeeper)->shoproom].rtype - 8] ); 249. 		    box = carrying(ICE_BOX); 250. 		    pick = carrying(PICK_AXE); 251. 		    if(box || pick) { 252. 			if(dochug(shopkeeper)) { 253. 				u.uinshop = 0;	/* he died moving */ 254. 				return(0); 255. 			}  256.  			pline("Will you please leave your %s outside?",  257.  			    (box && pick) ? "box and pick-axe" :  258.  			    box ? "box" : "pick-axe"); 259. 		    }  260.  		}  261.  		u.uinshop = roomno + 1; 262. 	    }  263.  	}  264.  	return(u.uinshop); 265. }  266.   267.  static 268. findshk(roomno) 269. register roomno; 270. {  271.  register struct monst *mtmp; 272. 	for(mtmp = fmon; mtmp; mtmp = mtmp->nmon) 273. 	    if(mtmp->isshk && ESHK(mtmp)->shoproom == roomno  274.  			   && ESHK(mtmp)->shoplevel == dlevel) { 275. 		shopkeeper = mtmp; 276. 		bill = &(ESHK(shopkeeper)->bill[0]); 277. 		shlevel = dlevel; 278. 		if(ANGRY(shopkeeper) &&  279.  		   strncmp(ESHK(shopkeeper)->customer,plname,PL_NSIZ)) 280. 			NOTANGRY(shopkeeper) = 1; 281. 		/* billobjs = 0; -- this is wrong if we save in a shop */ 282. 		/* (and it is harmless to have too many things in billobjs) */ 283. 		return; 284. 	}  285.  	shopkeeper = 0; 286. 	shlevel = 0; 287. 	bill = (struct bill_x *) -1000;	/* dump core when referenced */ 288. }  289.   290.  static struct bill_x * 291. onbill(obj) register struct obj *obj; { 292. register struct bill_x *bp; 293. 	if(!shopkeeper) return(0); 294. 	for(bp = bill; bp < &bill[ESHK(shopkeeper)->billct]; bp++) 295. 		if(bp->bo_id == obj->o_id) { 296. 			if(!obj->unpaid) pline("onbill: paid obj on bill?"); 297. 			return(bp); 298. 		}  299.  	if(obj->unpaid) pline("onbill: unpaid obj not on bill?"); 300. 	return(0); 301. }  302.   303.  /* called with two args on merge */ 304. obfree(obj,merge) register struct obj *obj, *merge; { 305. register struct bill_x *bp = onbill(obj); 306. register struct bill_x *bpm; 307. 	if(bp) { 308. 		if(!merge){ 309. 			bp->useup = 1; 310. 			obj->unpaid = 0;	/* only for doinvbill */ 311. 			obj->nobj = billobjs; 312. 			billobjs = obj; 313. 			return; 314. 		}  315.  		bpm = onbill(merge); 316. 		if(!bpm){ 317. 			/* this used to be a rename */ 318. 			impossible("obfree: not on bill??"); 319. 			return; 320. 		} else { 321. 			/* this was a merger */ 322. 			bpm->bquan += bp->bquan; 323. 			ESHK(shopkeeper)->billct--; 324. 			*bp = bill[ESHK(shopkeeper)->billct]; 325. 		}  326.  	}  327.  	free((char *) obj); 328. }  329.   330.  static 331. pay(tmp,shkp) 332. long tmp; 333. register struct monst *shkp; 334. {  335.  	long robbed = ESHK(shkp)->robbed; 336.  337.  	u.ugold -= tmp; 338. 	shkp->mgold += tmp; 339. 	flags.botl = 1; 340. 	if(robbed) { 341. 		robbed -= tmp; 342. 		if(robbed < 0) robbed = 0; 343. 		ESHK(shkp)->robbed = robbed; 344. 	}  345.  }  346.   347.  dopay{ 348. long ltmp; 349. register struct bill_x *bp; 350. register struct monst *shkp; 351. int pass, tmp; 352.  353.  	multi = 0; 354. 	(void) inshop; 355. 	for(shkp = fmon; shkp; shkp = shkp->nmon) 356. 		if(shkp->isshk && dist(shkp->mx,shkp->my) < 3) 357. 			break; 358. 	if(!shkp && u.uinshop &&  359.  	   inroom(shopkeeper->mx,shopkeeper->my) == ESHK(shopkeeper)->shoproom) 360. 		shkp = shopkeeper; 361.  362.  	if(!shkp) { 363. 		pline("There is nobody here to receive your payment."); 364. 		return(0); 365. 	}  366.  	ltmp = ESHK(shkp)->robbed; 367. 	if(shkp != shopkeeper && NOTANGRY(shkp)) { 368. 		if(!ltmp) { 369. 			pline("You do not owe %s anything.", monnam(shkp)); 370. 		} else 371. 		if(!u.ugold) { 372. 			pline("You have no money."); 373. 		} else { 374. 		    long ugold = u.ugold; 375.  376.  		    if(u.ugold > ltmp) { 377. 			pline("You give %s the %ld gold pieces %s asked for.",  378.  			monnam(shkp), ltmp, index("@CGHKLOQTVWZ&ehimt", shkp->data->mlet)  379.  			? "he" : (index("nN", shkp->data->mlet) ? "she" : "it")); 380. 			pay(ltmp, shkp); 381. 		    } else { 382. 			pline("You give %s all your gold.", monnam(shkp)); 383. 			pay(u.ugold, shkp); 384. 		    }  385.  		    if(ugold < ltmp/2) { 386. 			pline("Unfortunately, %s doesn't look satisfied.",  387.  			index("@CGHKLOQTVWZ&ehimt", shkp->data->mlet)  388.  			? "he" : (index("nN", shkp->data->mlet) ? "she" : "it")); 389. 		    } else { 390. 			ESHK(shkp)->robbed = 0; 391. 			ESHK(shkp)->following = 0; 392. 			if(ESHK(shkp)->shoplevel != dlevel) { 393. 			/* For convenience's sake, let him disappear */ 394. 			    shkp->minvent = 0;		/* %% */ 395. 			    shkp->mgold = 0; 396. 			    mondead(shkp); 397. 			}  398.  		    }  399.  		}  400.  		return(1); 401. 	}  402.  		  403.  	if(!ESHK(shkp)->billct){ 404. 		pline("You do not owe %s anything.", monnam(shkp)); 405. 		if(!u.ugold){ 406. 			pline("Moreover, you have no money."); 407. 			return(1); 408. 		}  409.  		if(ESHK(shkp)->robbed){ 410. 			pline("But since %s shop has been robbed recently,",  411.  			index("@CGHKLOQTVWZ&ehimt", shkp->data->mlet)  412.  			? "his" : (index("nN", shkp->data->mlet) ? "her" : "its")); 413. 		    pline("you %srepay %s's expenses.",  414.  		      (u.ugold < ESHK(shkp)->robbed) ? "partially " : "",  415.  		      monnam(shkp)); 416. 		    pay(min(u.ugold, ESHK(shkp)->robbed), shkp); 417. 		    ESHK(shkp)->robbed = 0; 418. 		    return(1); 419. 		}  420.  		if(ANGRY(shkp)){ 421. 			pline("But in order to appease %s,",  422.  				amonnam(shkp, "angry")); 423. 			if(u.ugold >= 1000){ 424. 				ltmp = 1000; 425. 				pline(" you give %s 1000 gold pieces.",  426.  				index("@CGHKLOQTVWZ&ehimt", shkp->data->mlet)  427.  				? "him" : (index("nN", shkp->data->mlet) ? "her" : "it")); 428. 			} else { 429. 				ltmp = u.ugold; 430. 				pline(" you give %s all your money.",  431.  				index("@CGHKLOQTVWZ&ehimt", shkp->data->mlet)  432.  				? "him" : (index("nN", shkp->data->mlet) ? "her" : "it")); 433. 			}  434.  			pay(ltmp, shkp); 435. 			if(strncmp(ESHK(shkp)->customer, plname, PL_NSIZ)  436.  			   || rn2(3)){ 437. 				pline("%s calms down.", Monnam(shkp)); 438. 				NOTANGRY(shkp) = 1; 439. 			} else	pline("%s is as angry as ever.",  440.  					Monnam(shkp)); 441. 		}  442.  		return(1); 443. 	}  444.  	if(shkp != shopkeeper) { 445. 		impossible("dopay: not to shopkeeper?"); 446. 		if(shopkeeper) setpaid; 447. 		return(0); 448. 	}  449.  	for(pass = 0; pass <= 1; pass++) { 450. 		tmp = 0; 451. 		while(tmp < ESHK(shopkeeper)->billct) { 452. 			bp = &bill[tmp]; 453. 			if(!pass && !bp->useup) { 454. 				tmp++; 455. 				continue; 456. 			}  457.  			if(!dopayobj(bp)) return(1); 458. #ifdef MSDOS 459. 			*bp = bill[--ESHK(shopkeeper)->billct]; 460. #else 461. 			bill[tmp] = bill[--ESHK(shopkeeper)->billct]; 462. #endif /* MSDOS /**/ 463. 		}  464.  	}  465.  	pline("Thank you for shopping in %s's %s store!",  466.  		shkname(shopkeeper),  467.  		shopnam[rooms[ESHK(shopkeeper)->shoproom].rtype - 8]); 468. 	NOTANGRY(shopkeeper) = 1; 469. 	return(1); 470. }  471.   472.  /* return 1 if paid successfully */ 473. /*        0 if not enough money */ 474. /*       -1 if object could not be found (but was paid) */ 475. static 476. dopayobj(bp) register struct bill_x *bp; { 477. register struct obj *obj; 478. long ltmp; 479.  480.  	/* find the object on one of the lists */ 481. 	obj = bp_to_obj(bp); 482.  483.  	if(!obj) { 484. 		impossible("Shopkeeper administration out of order."); 485. 		setpaid;	/* be nice to the player */ 486. 		return(0); 487. 	}  488.   489.  	if(!obj->unpaid && !bp->useup){ 490. 		impossible("Paid object on bill??"); 491. 		return(1); 492. 	}  493.  	obj->unpaid = 0; 494. 	ltmp = bp->price * bp->bquan; 495. 	if(ANGRY(shopkeeper)) ltmp += ltmp/3; 496. 	if(u.ugold < ltmp){ 497. 		pline("You don't have gold enough to pay %s.",  498.  			doname(obj)); 499. 		obj->unpaid = 1; 500. 		return(0); 501. 	}  502.  	pay(ltmp, shopkeeper); 503. 	pline("You bought %s for %ld gold piece%s.",  504.  		doname(obj), ltmp, plur(ltmp)); 505. 	if(bp->useup) { 506. 		register struct obj *otmp = billobjs; 507. 		if(obj == billobjs) 508. 			billobjs = obj->nobj; 509. 		else { 510. 			while(otmp && otmp->nobj != obj) otmp = otmp->nobj; 511. 			if(otmp) otmp->nobj = obj->nobj; 512. 			else pline("Error in shopkeeper administration."); 513. 		}  514.  		free((char *) obj); 515. 	}  516.  	return(1); 517. }  518.   519.  /* routine called after dying (or quitting) with nonempty bill */ 520. paybill{ 521. 	if(shlevel == dlevel && shopkeeper && ESHK(shopkeeper)->billct){ 522. 		addupbill; 523. 		if(total > u.ugold){ 524. 			shopkeeper->mgold += u.ugold; 525. 			u.ugold = 0; 526. 		pline("%s comes and takes all your possessions.",  527.  			Monnam(shopkeeper)); 528. 		} else { 529. 			u.ugold -= total; 530. 			shopkeeper->mgold += total; 531. 	pline("%s comes and takes the %ld zorkmids you owed him.",  532.  		Monnam(shopkeeper), total); 533. 		}  534.  		setpaid;	/* in case we create bones */ 535. 	}  536.  }  537.   538.  /* find obj on one of the lists */ 539. struct obj * 540. bp_to_obj(bp) 541. register struct bill_x *bp; 542. {  543.  	register struct obj *obj; 544. 	register struct monst *mtmp; 545. 	register unsigned id = bp->bo_id; 546.  547.  	if(bp->useup) 548. 		obj = o_on(id, billobjs); 549. 	else if(!(obj = o_on(id, invent)) &&  550.  		!(obj = o_on(id, fobj)) &&  551.  		!(obj = o_on(id, fcobj))) { 552. 		    for(mtmp = fmon; mtmp; mtmp = mtmp->nmon) 553. 			if(obj = o_on(id, mtmp->minvent)) 554. 			    break; 555. 		    for(mtmp = fallen_down; mtmp; mtmp = mtmp->nmon) 556. 			if(obj = o_on(id, mtmp->minvent)) 557. 			    break; 558. 		}  559.  	return(obj); 560. }  561.   562.  /* called in hack.c when we pickup an object */ 563. addtobill(obj) register struct obj *obj; { 564. register struct bill_x *bp; 565. 	if(!inshop ||  566.  	(u.ux == ESHK(shopkeeper)->shk.x && u.uy == ESHK(shopkeeper)->shk.y) ||  567.  	(u.ux == ESHK(shopkeeper)->shd.x && u.uy == ESHK(shopkeeper)->shd.y) ||  568.  		onbill(obj) /* perhaps we threw it away earlier */  569.  	  ) return; 570. 	if(ESHK(shopkeeper)->billct == BILLSZ){ 571. 		pline("You got that for free!"); 572. 		return; 573. 	}  574.  #ifdef DGKMOD 575. 	/* To recognize objects the showkeeper is not interested in. -dgk 576. 	 */  577.  	if (obj->no_charge) { 578. 		obj->no_charge = 0; 579. 		return; 580. 	}  581.  #endif 582. 	bp = &bill[ESHK(shopkeeper)->billct]; 583. 	bp->bo_id = obj->o_id; 584. 	bp->bquan = obj->quan; 585. 	bp->useup = 0; 586. 	bp->price = getprice(obj); 587. 	ESHK(shopkeeper)->billct++; 588. 	obj->unpaid = 1; 589. }  590.   591.  splitbill(obj,otmp) register struct obj *obj, *otmp; { 592. 	/* otmp has been split off from obj */ 593. register struct bill_x *bp; 594. register int tmp; 595. 	bp = onbill(obj); 596. 	if(!bp) { 597. 		impossible("splitbill: not on bill?"); 598. 		return; 599. 	}  600.  	if(bp->bquan < otmp->quan) { 601. 		impossible("Negative quantity on bill??"); 602. 	}  603.  	if(bp->bquan == otmp->quan) { 604. 		impossible("Zero quantity on bill??"); 605. 	}  606.  	bp->bquan -= otmp->quan; 607.  608.  	/* addtobill(otmp); */ 609. 	if(ESHK(shopkeeper)->billct == BILLSZ) otmp->unpaid = 0; 610. 	else { 611. 		tmp = bp->price; 612. 		bp = &bill[ESHK(shopkeeper)->billct]; 613. 		bp->bo_id = otmp->o_id; 614. 		bp->bquan = otmp->quan; 615. 		bp->useup = 0; 616. 		bp->price = tmp; 617. 		ESHK(shopkeeper)->billct++; 618. 	}  619.  }  620.   621.  subfrombill(obj) register struct obj *obj; { 622. long ltmp; 623. register int tmp; 624. register struct obj *otmp; 625. register struct bill_x *bp; 626. 	if(!inshop || (u.ux == ESHK(shopkeeper)->shk.x && u.uy == ESHK(shopkeeper)->shk.y) ||  627.  		(u.ux == ESHK(shopkeeper)->shd.x && u.uy == ESHK(shopkeeper)->shd.y)) 628. 		return; 629. 	if((bp = onbill(obj)) != 0){ 630. 		obj->unpaid = 0; 631. 		if(bp->bquan > obj->quan){ 632. 			otmp = newobj(0); 633. 			*otmp = *obj; 634. 			bp->bo_id = otmp->o_id = flags.ident++; 635. 			otmp->quan = (bp->bquan -= obj->quan); 636. 			otmp->owt = 0;	/* superfluous */ 637. 			otmp->onamelth = 0; 638. 			bp->useup = 1; 639. 			otmp->nobj = billobjs; 640. 			billobjs = otmp; 641. 			return; 642. 		}  643.  		ESHK(shopkeeper)->billct--; 644. 		*bp = bill[ESHK(shopkeeper)->billct]; 645. 		return; 646. 	}  647.  	if(obj->unpaid){ 648. 		pline("%s didn't notice.", Monnam(shopkeeper)); 649. 		obj->unpaid = 0; 650. 		return;		/* %% */ 651. 	}  652.  	/* he dropped something of his own - probably wants to sell it */ 653. 	if(shopkeeper->msleep || shopkeeper->mfroz ||  654.  		inroom(shopkeeper->mx,shopkeeper->my) != ESHK(shopkeeper)->shoproom) 655. 		return; 656. 	if(ESHK(shopkeeper)->billct == BILLSZ ||  657.  	  ((tmp = shtypes[rooms[ESHK(shopkeeper)->shoproom].rtype-8]) && tmp != obj->olet)  658.  	  || index("_0", obj->olet)) { 659. 		pline("%s seems not interested.", Monnam(shopkeeper)); 660. #ifdef DGKMOD 661. 		obj->no_charge = 1; 662. #endif 663. 		return; 664. 	}  665.  	ltmp = getprice(obj) * obj->quan; 666. 	if(ANGRY(shopkeeper)) { 667. 		ltmp /= 3; 668. 		NOTANGRY(shopkeeper) = 1; 669. 	} else	ltmp /= 2; 670. 	if(ESHK(shopkeeper)->robbed){ 671. 		if((ESHK(shopkeeper)->robbed -= ltmp) < 0) 672. 			ESHK(shopkeeper)->robbed = 0; 673. pline("Thank you for your contribution to restock this recently plundered shop."); 674. 		return; 675. 	}  676.  	if(ltmp > shopkeeper->mgold) 677. 		ltmp = shopkeeper->mgold; 678. 	pay(-ltmp, shopkeeper); 679. 	if(!ltmp) { 680. 		pline("%s gladly accepts %s but cannot pay you at present.",  681.  			Monnam(shopkeeper), doname(obj)); 682. #ifdef DGKMOD 683. 			obj->no_charge = 1; 684. #endif 685. 	} else 686. 	pline("You sold %s and got %ld gold piece%s.", doname(obj), ltmp,  687.  		plur(ltmp)); 688. }  689.   690.  doinvbill(mode) 691. int mode;		/* 0: deliver count 1: paged */ 692. {  693.  	register struct bill_x *bp; 694. 	register struct obj *obj; 695. 	long totused, thisused; 696. 	char buf[BUFSZ]; 697.  698.  	if(mode == 0) { 699. 	    register int cnt = 0; 700.  701.  	    if(shopkeeper) 702. 		for(bp = bill; bp - bill < ESHK(shopkeeper)->billct; bp++) 703. 		    if(bp->useup ||  704.  		      ((obj = bp_to_obj(bp)) && obj->quan < bp->bquan)) 705. 			cnt++; 706. 	    return(cnt); 707. 	}  708.   709.  	if(!shopkeeper) { 710. 		impossible("doinvbill: no shopkeeper?"); 711. 		return(0); 712. 	}  713.   714.  	set_pager(0); 715. 	if(page_line("Unpaid articles already used up:") || page_line("")) 716. 	    goto quit; 717.  718.  	totused = 0; 719. 	for(bp = bill; bp - bill < ESHK(shopkeeper)->billct; bp++) { 720. 	    obj = bp_to_obj(bp); 721. 	    if(!obj) { 722. 		impossible("Bad shopkeeper administration."); 723. 		goto quit; 724. 	    }  725.  	    if(bp->useup || bp->bquan > obj->quan) { 726. 		register int cnt, oquan, uquan; 727.  728.  		oquan = obj->quan; 729. 		uquan = (bp->useup ? bp->bquan : bp->bquan - oquan); 730. 		thisused = bp->price * uquan; 731. 		totused += thisused; 732. 		obj->quan = uquan;		/* cheat doname */ 733. 		(void) sprintf(buf, "x -  %s", doname(obj)); 734. 		obj->quan = oquan;		/* restore value */ 735. 		for(cnt = 0; buf[cnt]; cnt++); 736. 		while(cnt < 50) 737. 			buf[cnt++] = ' '; 738. 		(void) sprintf(&buf[cnt], " %5ld zorkmids", thisused); 739. 		if(page_line(buf)) 740. 			goto quit; 741. 	    }  742.  	}  743.  	(void) sprintf(buf, "Total:%50ld zorkmids", totused); 744. 	if(page_line("") || page_line(buf)) 745. 		goto quit; 746. 	set_pager(1); 747. 	return(0); 748. quit: 749. 	set_pager(2); 750. 	return(0); 751. }  752.   753.  static 754. getprice(obj) register struct obj *obj; { 755. register int tmp, ac; 756. 	switch(obj->olet){ 757. 	case AMULET_SYM: 758. 		tmp = 10*rnd(500); 759. 		break; 760. 	case TOOL_SYM: 761. 		tmp = 10*rnd((obj->otyp == EXPENSIVE_CAMERA) ? 150 :  762.  #ifdef MARKER  763.  			(obj->otyp == MAGIC_MARKER) ? 100 :  764.  #endif  765.  			30); 766. 		break; 767. 	case RING_SYM: 768. 		tmp = 10*rnd(100); 769. 		break; 770. 	case WAND_SYM: 771. 		tmp = 10*rnd(100); 772. 		break; 773. 	case SCROLL_SYM: 774. 		tmp = 10*rnd(50); 775. #ifdef MAIL 776. 		if(obj->otyp == SCR_MAIL) 777. 			tmp = rnd(5); 778. #endif 779. 		break; 780. 	case POTION_SYM: 781. 		tmp = 10*rnd(50); 782. 		break; 783. #ifdef SPELLS 784. 	case SPBOOK_SYM: 785. 		tmp = 10*rnd(200); 786. 		break; 787. #endif 788. 	case FOOD_SYM: 789. 		tmp = 10*rnd(5 + (2000/realhunger)); 790. 		break; 791. 	case GEM_SYM: 792. 		tmp = 10*rnd(20); 793. 		break; 794. 	case ARMOR_SYM: 795. 		ac = ARM_BONUS(obj); 796. 		if(ac <= -10)		/* probably impossible */ 797. 			ac = -9; 798. 		tmp = 100 + ac*ac*rnd(10+ac); 799. 		break; 800. 	case WEAPON_SYM: 801. 		if(obj->otyp < BOOMERANG) 802. 			tmp = 5*rnd(10); 803. 		else if(obj->otyp == KATANA) 804. 			tmp = 10*rnd(200); 805. 		else if(obj->otyp == LONG_SWORD ||  806.  			obj->otyp == TWO_HANDED_SWORD) 807. 			tmp = 10*rnd(150); 808. 		else	tmp = 10*rnd(75); 809. 		break; 810. 	case CHAIN_SYM: 811. 		pline("Strange ..., carrying a chain?"); 812. 	case BALL_SYM: 813. 		tmp = 10; 814. 		break; 815. 	default: 816. 		tmp = 10000; 817. 	}  818.  	return(tmp); 819. }  820.   821.  static 822. realhunger{	/* not completely foolproof */ 823. register tmp = u.uhunger; 824. register struct obj *otmp = invent; 825. 	while(otmp){ 826. 		if(otmp->olet == FOOD_SYM && !otmp->unpaid) 827. 			tmp += objects[otmp->otyp].nutrition; 828. 		otmp = otmp->nobj; 829. 	}  830.  	return((tmp <= 0) ? 1 : tmp); 831. }  832.   833.  shkcatch(obj) 834. register struct obj *obj; 835. {  836.  	register struct monst *shkp = shopkeeper; 837.  838.  	if(u.uinshop && shkp && !shkp->mfroz && !shkp->msleep &&  839.  	    u.dx && u.dy &&  840.  	    inroom(u.ux+u.dx, u.uy+u.dy) + 1 == u.uinshop &&  841.  	    shkp->mx == ESHK(shkp)->shk.x && shkp->my == ESHK(shkp)->shk.y &&  842.  	    u.ux == ESHK(shkp)->shd.x && u.uy == ESHK(shkp)->shd.y) { 843. 		pline("%s nimbly catches the %s.", Monnam(shkp), xname(obj)); 844. 		obj->nobj = shkp->minvent; 845. 		shkp->minvent = obj; 846. 		return(1); 847. 	}  848.  	return(0); 849. }  850.   851.  /*  852.   * shk_move: return 1: he moved  0: he didnt  -1: let m_move do it  853. */ 854.  shk_move(shkp) 855. register struct monst *shkp; 856. {  857.  	register struct monst *mtmp; 858. 	register struct permonst *mdat = shkp->data; 859. 	register xchar gx,gy,omx,omy,nx,ny,nix,niy; 860. 	register schar appr,i; 861. 	register int udist; 862. 	int z;  863. schar shkroom,chi,chcnt,cnt; 864. 	boolean uondoor, satdoor, avoid, badinv; 865. 	coord poss[9]; 866. 	long info[9]; 867. 	struct obj *ib = 0; 868.  869.  	omx = shkp->mx; 870. 	omy = shkp->my; 871.  872.  	if((udist = dist(omx,omy)) < 3) { 873. 		if(ANGRY(shkp)) { 874. 			(void) hitu(shkp, d(mdat->damn, mdat->damd)+1); 875. 			return(0); 876. 		}  877.  		if(ESHK(shkp)->following) { 878. 			if(strncmp(ESHK(shkp)->customer, plname, PL_NSIZ)){ 879. 				pline("Hello %s! I was looking for %s.",  880.  					plname, ESHK(shkp)->customer); 881. 				ESHK(shkp)->following = 0; 882. 				return(0); 883. 			}  884.  			if(!ESHK(shkp)->robbed) {	/* impossible? */ 885.  				ESHK(shkp)->following = 0; 886. 				return(0); 887. 			}  888.  			if(moves > followmsg+4) { 889. 				pline("Hello %s! Didn't you forget to pay?",  890.  					plname); 891. 				followmsg = moves; 892. 			}  893.  			if(udist < 2) 894. 				return(0); 895. 		}  896.  	}  897.   898.  	shkroom = inroom(omx,omy); 899. 	appr = 1; 900. 	gx = ESHK(shkp)->shk.x;  901. gy = ESHK(shkp)->shk.y; 902. satdoor = (gx == omx && gy == omy); 903. 	if(ESHK(shkp)->following || ((z = holetime) >= 0 && z*z <= udist)){ 904. 		gx = u.ux; 905. 		gy = u.uy; 906. 		if(shkroom < 0 || shkroom != inroom(u.ux,u.uy)) 907. 		    if(udist > 4) 908. 			return(-1);	/* leave it to m_move */ 909. 	} else if(ANGRY(shkp)) { 910. 		long saveBlind = Blind; 911. 		Blind = 0; 912. 		if(shkp->mcansee && !Invis && cansee(omx,omy)) { 913. 			gx = u.ux; 914. 			gy = u.uy; 915. 		}  916.  		Blind = saveBlind; 917. 		avoid = FALSE; 918. 	} else { 919. #define	GDIST(x,y)	((x-gx)*(x-gx)+(y-gy)*(y-gy)) 920. 		if(Invis) 921. 		  avoid = FALSE; 922. 		else { 923. 		  uondoor = (u.ux == ESHK(shkp)->shd.x &&  924.  				u.uy == ESHK(shkp)->shd.y); 925. 		  if(uondoor) { 926. 		    if(ESHK(shkp)->billct) 927. 			pline("Hello %s! Will you please pay before leaving?",  928.  				plname); 929. 		    badinv = (carrying(PICK_AXE) || carrying(ICE_BOX)); 930. 		    if(satdoor && badinv) 931. 			return(0); 932. 		    avoid = !badinv; 933. 		  } else { 934. 		    avoid = (u.uinshop && dist(gx,gy) > 8); 935. 		    badinv = FALSE; 936. 		  }  937.   938.  		  if(((!ESHK(shkp)->robbed && !ESHK(shkp)->billct) || avoid)  939.  			&& GDIST(omx,omy) < 3){ 940. 			if(!badinv && !online(omx,omy)) 941. 				return(0); 942. 			if(satdoor) 943. 				appr = gx = gy = 0; 944. 		  }  945.  		}  946.  	}  947.  	if(omx == gx && omy == gy) 948. 		return(0); 949. 	if(shkp->mconf) { 950. 		avoid = FALSE; 951. 		appr = 0; 952. 	}  953.  	nix = omx; 954. 	niy = omy; 955. 	cnt = mfndpos(shkp,poss,info,ALLOW_SSM); 956. 	if(avoid && uondoor) {		/* perhaps we cannot avoid him */ 957. 		for(i=0; ishoproom  970.  		|| ESHK(shkp)->following) { 971. #ifdef STUPID 972. 		    /* cater for stupid compilers */ 973. 		    register int zz; 974. #endif 975. 		    if(uondoor && (ib = sobj_at(ICE_BOX, nx, ny))) { 976. 			nix = nx; niy = ny; chi = i; break; 977. 		    }  978.  		    if(avoid && (info[i] & NOTONL)) 979. 			continue; 980. 		    if((!appr && !rn2(++chcnt)) ||  981.  #ifdef STUPID  982.  			(appr && (zz = GDIST(nix,niy)) && zz > GDIST(nx,ny))  983.  #else  984.  			(appr && GDIST(nx,ny) < GDIST(nix,niy))  985.  #endif  986.  			) { 987. 			    nix = nx; 988. 			    niy = ny; 989. 			    chi = i;  990. } 991.  		}  992.  	}  993.  	if(nix != omx || niy != omy){ 994. 		if(info[chi] & ALLOW_M){ 995. 			mtmp = m_at(nix,niy); 996. 			if(hitmm(shkp,mtmp) == 1 && rn2(3) &&  997.  			   hitmm(mtmp,shkp) == 2) return(2); 998. 			return(0); 999. 		} else if(info[chi] & ALLOW_U){ 1000. 			(void) hitu(shkp, d(mdat->damn, mdat->damd)+1); 1001. 			return(0); 1002. 		} 1003. 		shkp->mx = nix; 1004. 		shkp->my = niy; 1005. 		pmon(shkp); 1006. 		if(ib) { 1007. 			freeobj(ib); 1008. 			mpickobj(shkp, ib); 1009. 		} 1010. 		return(1); 1011. 	} 1012. 	return(0); 1013. } 1014. #endif /* QUEST /**/ 1015. 1016. online(x,y) { 1017. 	return(x==u.ux || y==u.uy || 1018. 		(x-u.ux)*(x-u.ux) == (y-u.uy)*(y-u.uy)); 1019. } 1020.  1021. /* Does this monster follow me downstairs? */ 1022. follower(mtmp) 1023. register struct monst *mtmp; 1024. { 1025. 	return( mtmp->mtame || index("1TVWZi&, ", mtmp->data->mlet) ||  1026. 		(mtmp->isshk && ESHK(mtmp)->following) ); 1027. } 1028.  1029. /* He is digging in the shop. */ 1030. shopdig(fall) 1031. register int fall; 1032. { 1033.     if(!fall) { 1034. 	if(u.utraptype == TT_PIT) 1035. 	   pline("\"Be careful, sir, or you might fall through the floor.\""); 1036. 	else 1037. 	   pline("\"Please, do not damage the floor here.\""); 1038.    } else if(dist(shopkeeper->mx, shopkeeper->my) < 3) { 1039. 	register struct obj *obj, *obj2; 1040. 1041. 	pline("%s grabs your backpack!", shkname(shopkeeper)); 1042. 	for(obj = invent; obj; obj = obj2) { 1043. 		obj2 = obj->nobj; 1044. 		if(obj->owornmask) continue; 1045. 		freeinv(obj); 1046. 		obj->nobj = shopkeeper->minvent; 1047. 		shopkeeper->minvent = obj; 1048. 		if(obj->unpaid) 1049. 			subfrombill(obj); 1050. 	} 1051.     }  1052. }