xref: /dragonfly/games/hack/hack.c (revision 984263bc)
1 /* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
2 /* hack.c - version 1.0.3 */
3 /* $FreeBSD: src/games/hack/hack.c,v 1.4 1999/11/16 10:26:35 marcel Exp $ */
4 
5 #include "hack.h"
6 #include <stdio.h>
7 
8 extern char news0();
9 extern char *nomovemsg;
10 extern char *exclam();
11 extern struct obj *addinv();
12 extern boolean hmon();
13 
14 /* called on movement:
15 	1. when throwing ball+chain far away
16 	2. when teleporting
17 	3. when walking out of a lit room
18  */
19 unsee() {
20 	int x,y;
21 	struct rm *lev;
22 
23 /*
24 	if(u.udispl){
25 		u.udispl = 0;
26 		newsym(u.udisx, u.udisy);
27 	}
28 */
29 #ifndef QUEST
30 	if(seehx){
31 		seehx = 0;
32 	} else
33 #endif QUEST
34 	for(x = u.ux-1; x < u.ux+2; x++)
35 	  for(y = u.uy-1; y < u.uy+2; y++) {
36 		if(!isok(x, y)) continue;
37 		lev = &levl[x][y];
38 		if(!lev->lit && lev->scrsym == '.') {
39 			lev->scrsym =' ';
40 			lev->new = 1;
41 			on_scr(x,y);
42 		}
43 	}
44 }
45 
46 /* called:
47 	in hack.eat.c: seeoff(0) - blind after eating rotten food
48 	in hack.mon.c: seeoff(0) - blinded by a yellow light
49 	in hack.mon.c: seeoff(1) - swallowed
50 	in hack.do.c:  seeoff(0) - blind after drinking potion
51 	in hack.do.c:  seeoff(1) - go up or down the stairs
52 	in hack.trap.c:seeoff(1) - fall through trapdoor
53  */
54 seeoff(mode)	/* 1 to redo @, 0 to leave them */
55 {	/* 1 means misc movement, 0 means blindness */
56 	int x,y;
57 	struct rm *lev;
58 
59 	if(u.udispl && mode){
60 		u.udispl = 0;
61 		levl[u.udisx][u.udisy].scrsym = news0(u.udisx,u.udisy);
62 	}
63 #ifndef QUEST
64 	if(seehx) {
65 		seehx = 0;
66 	} else
67 #endif QUEST
68 	if(!mode) {
69 		for(x = u.ux-1; x < u.ux+2; x++)
70 			for(y = u.uy-1; y < u.uy+2; y++) {
71 				if(!isok(x, y)) continue;
72 				lev = &levl[x][y];
73 				if(!lev->lit && lev->scrsym == '.')
74 					lev->seen = 0;
75 			}
76 	}
77 }
78 
79 domove()
80 {
81 	xchar oldx,oldy;
82 	struct monst *mtmp;
83 	struct rm *tmpr,*ust;
84 	struct trap *trap;
85 	struct obj *otmp;
86 
87 	u_wipe_engr(rnd(5));
88 
89 	if(inv_weight() > 0){
90 		pline("You collapse under your load.");
91 		nomul(0);
92 		return;
93 	}
94 	if(u.uswallow) {
95 		u.dx = u.dy = 0;
96 		u.ux = u.ustuck->mx;
97 		u.uy = u.ustuck->my;
98 	} else {
99 		if(Confusion) {
100 			do {
101 				confdir();
102 			} while(!isok(u.ux+u.dx, u.uy+u.dy) ||
103 			    IS_ROCK(levl[u.ux+u.dx][u.uy+u.dy].typ));
104 		}
105 		if(!isok(u.ux+u.dx, u.uy+u.dy)){
106 			nomul(0);
107 			return;
108 		}
109 	}
110 
111 	ust = &levl[u.ux][u.uy];
112 	oldx = u.ux;
113 	oldy = u.uy;
114 	if(!u.uswallow && (trap = t_at(u.ux+u.dx, u.uy+u.dy)) && trap->tseen)
115 		nomul(0);
116 	if(u.ustuck && !u.uswallow && (u.ux+u.dx != u.ustuck->mx ||
117 		u.uy+u.dy != u.ustuck->my)) {
118 		if(dist(u.ustuck->mx, u.ustuck->my) > 2){
119 			/* perhaps it fled (or was teleported or ... ) */
120 			u.ustuck = 0;
121 		} else {
122 			if(Blind) pline("You cannot escape from it!");
123 			else pline("You cannot escape from %s!",
124 				monnam(u.ustuck));
125 			nomul(0);
126 			return;
127 		}
128 	}
129 	if(u.uswallow || (mtmp = m_at(u.ux+u.dx,u.uy+u.dy))) {
130 	/* attack monster */
131 
132 		nomul(0);
133 		gethungry();
134 		if(multi < 0) return;	/* we just fainted */
135 
136 		/* try to attack; note that it might evade */
137 		if(attack(u.uswallow ? u.ustuck : mtmp))
138 			return;
139 	}
140 	/* not attacking an animal, so we try to move */
141 	if(u.utrap) {
142 		if(u.utraptype == TT_PIT) {
143 			pline("You are still in a pit.");
144 			u.utrap--;
145 		} else {
146 			pline("You are caught in a beartrap.");
147 			if((u.dx && u.dy) || !rn2(5)) u.utrap--;
148 		}
149 		return;
150 	}
151 	tmpr = &levl[u.ux+u.dx][u.uy+u.dy];
152 	if(IS_ROCK(tmpr->typ) ||
153 	   (u.dx && u.dy && (tmpr->typ == DOOR || ust->typ == DOOR))){
154 		flags.move = 0;
155 		nomul(0);
156 		return;
157 	}
158 	while(otmp = sobj_at(ENORMOUS_ROCK, u.ux+u.dx, u.uy+u.dy)) {
159 		xchar rx = u.ux+2*u.dx, ry = u.uy+2*u.dy;
160 		struct trap *ttmp;
161 		nomul(0);
162 		if(isok(rx,ry) && !IS_ROCK(levl[rx][ry].typ) &&
163 		    (levl[rx][ry].typ != DOOR || !(u.dx && u.dy)) &&
164 		    !sobj_at(ENORMOUS_ROCK, rx, ry)) {
165 			if(m_at(rx,ry)) {
166 			    pline("You hear a monster behind the rock.");
167 			    pline("Perhaps that's why you cannot move it.");
168 			    goto cannot_push;
169 			}
170 			if(ttmp = t_at(rx,ry))
171 			    switch(ttmp->ttyp) {
172 			    case PIT:
173 				pline("You push the rock into a pit!");
174 				deltrap(ttmp);
175 				delobj(otmp);
176 				pline("It completely fills the pit!");
177 				continue;
178 			    case TELEP_TRAP:
179 				pline("You push the rock and suddenly it disappears!");
180 				delobj(otmp);
181 				continue;
182 			    }
183 			if(levl[rx][ry].typ == POOL) {
184 				levl[rx][ry].typ = ROOM;
185 				mnewsym(rx,ry);
186 				prl(rx,ry);
187 				pline("You push the rock into the water.");
188 				pline("Now you can cross the water!");
189 				delobj(otmp);
190 				continue;
191 			}
192 			otmp->ox = rx;
193 			otmp->oy = ry;
194 			/* pobj(otmp); */
195 			if(cansee(rx,ry)) atl(rx,ry,otmp->olet);
196 			if(Invisible) newsym(u.ux+u.dx, u.uy+u.dy);
197 
198 			{ static long lastmovetime;
199 			/* note: this var contains garbage initially and
200 			   after a restore */
201 			if(moves > lastmovetime+2 || moves < lastmovetime)
202 			pline("With great effort you move the enormous rock.");
203 			lastmovetime = moves;
204 			}
205 		} else {
206 		    pline("You try to move the enormous rock, but in vain.");
207 	    cannot_push:
208 		    if((!invent || inv_weight()+90 <= 0) &&
209 			(!u.dx || !u.dy || (IS_ROCK(levl[u.ux][u.uy+u.dy].typ)
210 					&& IS_ROCK(levl[u.ux+u.dx][u.uy].typ)))){
211 			pline("However, you can squeeze yourself into a small opening.");
212 			break;
213 		    } else
214 			return;
215 		}
216 	    }
217 	if(u.dx && u.dy && IS_ROCK(levl[u.ux][u.uy+u.dy].typ) &&
218 		IS_ROCK(levl[u.ux+u.dx][u.uy].typ) &&
219 		invent && inv_weight()+40 > 0) {
220 		pline("You are carrying too much to get through.");
221 		nomul(0);
222 		return;
223 	}
224 	if(Punished &&
225 	   DIST(u.ux+u.dx, u.uy+u.dy, uchain->ox, uchain->oy) > 2){
226 		if(carried(uball)) {
227 			movobj(uchain, u.ux, u.uy);
228 			goto nodrag;
229 		}
230 
231 		if(DIST(u.ux+u.dx, u.uy+u.dy, uball->ox, uball->oy) < 3){
232 			/* leave ball, move chain under/over ball */
233 			movobj(uchain, uball->ox, uball->oy);
234 			goto nodrag;
235 		}
236 
237 		if(inv_weight() + (int) uball->owt/2 > 0) {
238 			pline("You cannot %sdrag the heavy iron ball.",
239 			invent ? "carry all that and also " : "");
240 			nomul(0);
241 			return;
242 		}
243 
244 		movobj(uball, uchain->ox, uchain->oy);
245 		unpobj(uball);		/* BAH %% */
246 		uchain->ox = u.ux;
247 		uchain->oy = u.uy;
248 		nomul(-2);
249 		nomovemsg = "";
250 	nodrag:	;
251 	}
252 	u.ux += u.dx;
253 	u.uy += u.dy;
254 	if(flags.run) {
255 		if(tmpr->typ == DOOR ||
256 		(xupstair == u.ux && yupstair == u.uy) ||
257 		(xdnstair == u.ux && ydnstair == u.uy))
258 			nomul(0);
259 	}
260 
261 	if(tmpr->typ == POOL && !Levitation)
262 		drown();	/* not necessarily fatal */
263 
264 /*
265 	if(u.udispl) {
266 		u.udispl = 0;
267 		newsym(oldx,oldy);
268 	}
269 */
270 	if(!Blind) {
271 #ifdef QUEST
272 		setsee();
273 #else
274 		if(ust->lit) {
275 			if(tmpr->lit) {
276 				if(tmpr->typ == DOOR)
277 					prl1(u.ux+u.dx,u.uy+u.dy);
278 				else if(ust->typ == DOOR)
279 					nose1(oldx-u.dx,oldy-u.dy);
280 			} else {
281 				unsee();
282 				prl1(u.ux+u.dx,u.uy+u.dy);
283 			}
284 		} else {
285 			if(tmpr->lit) setsee();
286 			else {
287 				prl1(u.ux+u.dx,u.uy+u.dy);
288 				if(tmpr->typ == DOOR) {
289 					if(u.dy) {
290 						prl(u.ux-1,u.uy);
291 						prl(u.ux+1,u.uy);
292 					} else {
293 						prl(u.ux,u.uy-1);
294 						prl(u.ux,u.uy+1);
295 					}
296 				}
297 			}
298 			nose1(oldx-u.dx,oldy-u.dy);
299 		}
300 #endif QUEST
301 	} else {
302 		pru();
303 	}
304 	if(!flags.nopick) pickup(1);
305 	if(trap) dotrap(trap);		/* fall into pit, arrow trap, etc. */
306 	(void) inshop();
307 	if(!Blind) read_engr_at(u.ux,u.uy);
308 }
309 
310 movobj(obj, ox, oy)
311 struct obj *obj;
312 int ox, oy;
313 {
314 	/* Some dirty programming to get display right */
315 	freeobj(obj);
316 	unpobj(obj);
317 	obj->nobj = fobj;
318 	fobj = obj;
319 	obj->ox = ox;
320 	obj->oy = oy;
321 }
322 
323 dopickup(){
324 	if(!g_at(u.ux,u.uy) && !o_at(u.ux,u.uy)) {
325 		pline("There is nothing here to pick up.");
326 		return(0);
327 	}
328 	if(Levitation) {
329 		pline("You cannot reach the floor.");
330 		return(1);
331 	}
332 	pickup(0);
333 	return(1);
334 }
335 
336 pickup(all)
337 {
338 	struct gold *gold;
339 	struct obj *obj, *obj2;
340 	int wt;
341 
342 	if(Levitation) return;
343 	while(gold = g_at(u.ux,u.uy)) {
344 		pline("%ld gold piece%s.", gold->amount, plur(gold->amount));
345 		u.ugold += gold->amount;
346 		flags.botl = 1;
347 		freegold(gold);
348 		if(flags.run) nomul(0);
349 		if(Invisible) newsym(u.ux,u.uy);
350 	}
351 
352 	/* check for more than one object */
353 	if(!all) {
354 		int ct = 0;
355 
356 		for(obj = fobj; obj; obj = obj->nobj)
357 			if(obj->ox == u.ux && obj->oy == u.uy)
358 				if(!Punished || obj != uchain)
359 					ct++;
360 		if(ct < 2)
361 			all++;
362 		else
363 			pline("There are several objects here.");
364 	}
365 
366 	for(obj = fobj; obj; obj = obj2) {
367 	    obj2 = obj->nobj;	/* perhaps obj will be picked up */
368 	    if(obj->ox == u.ux && obj->oy == u.uy) {
369 		if(flags.run) nomul(0);
370 
371 		/* do not pick up uchain */
372 		if(Punished && obj == uchain)
373 			continue;
374 
375 		if(!all) {
376 			char c;
377 
378 			pline("Pick up %s ? [ynaq]", doname(obj));
379 			while(!index("ynaq ", (c = readchar())))
380 				bell();
381 			if(c == 'q') return;
382 			if(c == 'n') continue;
383 			if(c == 'a') all = 1;
384 		}
385 
386 		if(obj->otyp == DEAD_COCKATRICE && !uarmg){
387 		    pline("Touching the dead cockatrice is a fatal mistake.");
388 		    pline("You turn to stone.");
389 		    killer = "cockatrice cadaver";
390 		    done("died");
391 		}
392 
393 		if(obj->otyp == SCR_SCARE_MONSTER){
394 		  if(!obj->spe) obj->spe = 1;
395 		  else {
396 		    /* Note: perhaps the 1st pickup failed: you cannot
397 			carry anymore, and so we never dropped it -
398 			let's assume that treading on it twice also
399 			destroys the scroll */
400 		    pline("The scroll turns to dust as you pick it up.");
401 		    delobj(obj);
402 		    continue;
403 		  }
404 		}
405 
406 		wt = inv_weight() + obj->owt;
407 		if(wt > 0) {
408 			if(obj->quan > 1) {
409 				/* see how many we can lift */
410 				extern struct obj *splitobj();
411 				int savequan = obj->quan;
412 				int iw = inv_weight();
413 				int qq;
414 				for(qq = 1; qq < savequan; qq++){
415 					obj->quan = qq;
416 					if(iw + weight(obj) > 0)
417 						break;
418 				}
419 				obj->quan = savequan;
420 				qq--;
421 				/* we can carry qq of them */
422 				if(!qq) goto too_heavy;
423 			pline("You can only carry %s of the %s lying here.",
424 					(qq == 1) ? "one" : "some",
425 					doname(obj));
426 				(void) splitobj(obj, qq);
427 				/* note: obj2 is set already, so we'll never
428 				 * encounter the other half; if it should be
429 				 * otherwise then write
430 				 *	obj2 = splitobj(obj,qq);
431 				 */
432 				goto lift_some;
433 			}
434 		too_heavy:
435 			pline("There %s %s here, but %s.",
436 				(obj->quan == 1) ? "is" : "are",
437 				doname(obj),
438 				!invent ? "it is too heavy for you to lift"
439 					: "you cannot carry anymore");
440 			break;
441 		}
442 	lift_some:
443 		if(inv_cnt() >= 52) {
444 		    pline("Your knapsack cannot accomodate anymore items.");
445 		    break;
446 		}
447 		if(wt > -5) pline("You have a little trouble lifting");
448 		freeobj(obj);
449 		if(Invisible) newsym(u.ux,u.uy);
450 		addtobill(obj);       /* sets obj->unpaid if necessary */
451 		{ int pickquan = obj->quan;
452 		  int mergquan;
453 		if(!Blind) obj->dknown = 1;	/* this is done by prinv(),
454 				 but addinv() needs it already for merging */
455 		obj = addinv(obj);    /* might merge it with other objects */
456 		  mergquan = obj->quan;
457 		  obj->quan = pickquan;	/* to fool prinv() */
458 		prinv(obj);
459 		  obj->quan = mergquan;
460 		}
461 	    }
462 	}
463 }
464 
465 /* stop running if we see something interesting */
466 /* turn around a corner if that is the only way we can proceed */
467 /* do not turn left or right twice */
468 lookaround(){
469 int x,y,i,x0,y0,m0,i0 = 9;
470 int corrct = 0, noturn = 0;
471 struct monst *mtmp;
472 #ifdef lint
473 	/* suppress "used before set" message */
474 	x0 = y0 = 0;
475 #endif lint
476 	if(Blind || flags.run == 0) return;
477 	if(flags.run == 1 && levl[u.ux][u.uy].typ == ROOM) return;
478 #ifdef QUEST
479 	if(u.ux0 == u.ux+u.dx && u.uy0 == u.uy+u.dy) goto stop;
480 #endif QUEST
481 	for(x = u.ux-1; x <= u.ux+1; x++) for(y = u.uy-1; y <= u.uy+1; y++){
482 		if(x == u.ux && y == u.uy) continue;
483 		if(!levl[x][y].typ) continue;
484 		if((mtmp = m_at(x,y)) && !mtmp->mimic &&
485 		    (!mtmp->minvis || See_invisible)){
486 			if(!mtmp->mtame || (x == u.ux+u.dx && y == u.uy+u.dy))
487 				goto stop;
488 		} else mtmp = 0; /* invisible M cannot influence us */
489 		if(x == u.ux-u.dx && y == u.uy-u.dy) continue;
490 		switch(levl[x][y].scrsym){
491 		case '|':
492 		case '-':
493 		case '.':
494 		case ' ':
495 			break;
496 		case '+':
497 			if(x != u.ux && y != u.uy) break;
498 			if(flags.run != 1) goto stop;
499 			/* fall into next case */
500 		case CORR_SYM:
501 		corr:
502 			if(flags.run == 1 || flags.run == 3) {
503 				i = DIST(x,y,u.ux+u.dx,u.uy+u.dy);
504 				if(i > 2) break;
505 				if(corrct == 1 && DIST(x,y,x0,y0) != 1)
506 					noturn = 1;
507 				if(i < i0) {
508 					i0 = i;
509 					x0 = x;
510 					y0 = y;
511 					m0 = mtmp ? 1 : 0;
512 				}
513 			}
514 			corrct++;
515 			break;
516 		case '^':
517 			if(flags.run == 1) goto corr;	/* if you must */
518 			if(x == u.ux+u.dx && y == u.uy+u.dy) goto stop;
519 			break;
520 		default:	/* e.g. objects or trap or stairs */
521 			if(flags.run == 1) goto corr;
522 			if(mtmp) break;		/* d */
523 		stop:
524 			nomul(0);
525 			return;
526 		}
527 	}
528 #ifdef QUEST
529 	if(corrct > 0 && (flags.run == 4 || flags.run == 5)) goto stop;
530 #endif QUEST
531 	if(corrct > 1 && flags.run == 2) goto stop;
532 	if((flags.run == 1 || flags.run == 3) && !noturn && !m0 && i0 &&
533 		(corrct == 1 || (corrct == 2 && i0 == 1))) {
534 		/* make sure that we do not turn too far */
535 		if(i0 == 2) {
536 		    if(u.dx == y0-u.uy && u.dy == u.ux-x0)
537 			i = 2;		/* straight turn right */
538 		    else
539 			i = -2;		/* straight turn left */
540 		} else if(u.dx && u.dy) {
541 		    if((u.dx == u.dy && y0 == u.uy) ||
542 			(u.dx != u.dy && y0 != u.uy))
543 			i = -1;		/* half turn left */
544 		    else
545 			i = 1;		/* half turn right */
546 		} else {
547 		    if((x0-u.ux == y0-u.uy && !u.dy) ||
548 			(x0-u.ux != y0-u.uy && u.dy))
549 			i = 1;		/* half turn right */
550 		    else
551 			i = -1;		/* half turn left */
552 		}
553 		i += u.last_str_turn;
554 		if(i <= 2 && i >= -2) {
555 			u.last_str_turn = i;
556 			u.dx = x0-u.ux, u.dy = y0-u.uy;
557 		}
558 	}
559 }
560 
561 /* something like lookaround, but we are not running */
562 /* react only to monsters that might hit us */
563 monster_nearby() {
564 int x,y;
565 struct monst *mtmp;
566 	if(!Blind)
567 	for(x = u.ux-1; x <= u.ux+1; x++) for(y = u.uy-1; y <= u.uy+1; y++){
568 		if(x == u.ux && y == u.uy) continue;
569 		if((mtmp = m_at(x,y)) && !mtmp->mimic && !mtmp->mtame &&
570 			!mtmp->mpeaceful && !index("Ea", mtmp->data->mlet) &&
571 			!mtmp->mfroz && !mtmp->msleep &&  /* aplvax!jcn */
572 			(!mtmp->minvis || See_invisible))
573 			return(1);
574 	}
575 	return(0);
576 }
577 
578 #ifdef QUEST
579 cansee(x,y) xchar x,y; {
580 int dx,dy,adx,ady,sdx,sdy,dmax,d;
581 	if(Blind) return(0);
582 	if(!isok(x,y)) return(0);
583 	d = dist(x,y);
584 	if(d < 3) return(1);
585 	if(d > u.uhorizon*u.uhorizon) return(0);
586 	if(!levl[x][y].lit)
587 		return(0);
588 	dx = x - u.ux;	adx = abs(dx);	sdx = sgn(dx);
589 	dy = y - u.uy;  ady = abs(dy);	sdy = sgn(dy);
590 	if(dx == 0 || dy == 0 || adx == ady){
591 		dmax = (dx == 0) ? ady : adx;
592 		for(d = 1; d <= dmax; d++)
593 			if(!rroom(sdx*d,sdy*d))
594 				return(0);
595 		return(1);
596 	} else if(ady > adx){
597 		for(d = 1; d <= ady; d++){
598 			if(!rroom(sdx*( (d*adx)/ady ), sdy*d) ||
599 			   !rroom(sdx*( (d*adx-1)/ady+1 ), sdy*d))
600 				return(0);
601 		}
602 		return(1);
603 	} else {
604 		for(d = 1; d <= adx; d++){
605 			if(!rroom(sdx*d, sdy*( (d*ady)/adx )) ||
606 			   !rroom(sdx*d, sdy*( (d*ady-1)/adx+1 )))
607 				return(0);
608 		}
609 		return(1);
610 	}
611 }
612 
613 rroom(x,y) int x,y; {
614 	return(IS_ROOM(levl[u.ux+x][u.uy+y].typ));
615 }
616 
617 #else
618 
619 cansee(x,y) xchar x,y; {
620 	if(Blind || u.uswallow) return(0);
621 	if(dist(x,y) < 3) return(1);
622 	if(levl[x][y].lit && seelx <= x && x <= seehx && seely <= y &&
623 		y <= seehy) return(1);
624 	return(0);
625 }
626 #endif QUEST
627 
628 sgn(a) int a; {
629 	return((a > 0) ? 1 : (a == 0) ? 0 : -1);
630 }
631 
632 #ifdef QUEST
633 setsee()
634 {
635 	x,y;
636 
637 	if(Blind) {
638 		pru();
639 		return;
640 	}
641 	for(y = u.uy-u.uhorizon; y <= u.uy+u.uhorizon; y++)
642 		for(x = u.ux-u.uhorizon; x <= u.ux+u.uhorizon; x++) {
643 			if(cansee(x,y))
644 				prl(x,y);
645 	}
646 }
647 
648 #else
649 
650 setsee()
651 {
652 	int x,y;
653 
654 	if(Blind) {
655 		pru();
656 		return;
657 	}
658 	if(!levl[u.ux][u.uy].lit) {
659 		seelx = u.ux-1;
660 		seehx = u.ux+1;
661 		seely = u.uy-1;
662 		seehy = u.uy+1;
663 	} else {
664 		for(seelx = u.ux; levl[seelx-1][u.uy].lit; seelx--);
665 		for(seehx = u.ux; levl[seehx+1][u.uy].lit; seehx++);
666 		for(seely = u.uy; levl[u.ux][seely-1].lit; seely--);
667 		for(seehy = u.uy; levl[u.ux][seehy+1].lit; seehy++);
668 	}
669 	for(y = seely; y <= seehy; y++)
670 		for(x = seelx; x <= seehx; x++) {
671 			prl(x,y);
672 	}
673 	if(!levl[u.ux][u.uy].lit) seehx = 0; /* seems necessary elsewhere */
674 	else {
675 	    if(seely == u.uy) for(x = u.ux-1; x <= u.ux+1; x++) prl(x,seely-1);
676 	    if(seehy == u.uy) for(x = u.ux-1; x <= u.ux+1; x++) prl(x,seehy+1);
677 	    if(seelx == u.ux) for(y = u.uy-1; y <= u.uy+1; y++) prl(seelx-1,y);
678 	    if(seehx == u.ux) for(y = u.uy-1; y <= u.uy+1; y++) prl(seehx+1,y);
679 	}
680 }
681 #endif QUEST
682 
683 nomul(nval)
684 int nval;
685 {
686 	if(multi < 0) return;
687 	multi = nval;
688 	flags.mv = flags.run = 0;
689 }
690 
691 abon()
692 {
693 	if(u.ustr == 3) return(-3);
694 	else if(u.ustr < 6) return(-2);
695 	else if(u.ustr < 8) return(-1);
696 	else if(u.ustr < 17) return(0);
697 	else if(u.ustr < 69) return(1);	/* up to 18/50 */
698 	else if(u.ustr < 118) return(2);
699 	else return(3);
700 }
701 
702 dbon()
703 {
704 	if(u.ustr < 6) return(-1);
705 	else if(u.ustr < 16) return(0);
706 	else if(u.ustr < 18) return(1);
707 	else if(u.ustr == 18) return(2);	/* up to 18 */
708 	else if(u.ustr < 94) return(3);		/* up to 18/75 */
709 	else if(u.ustr < 109) return(4);	/* up to 18/90 */
710 	else if(u.ustr < 118) return(5);	/* up to 18/99 */
711 	else return(6);
712 }
713 
714 losestr(num)	/* may kill you; cause may be poison or monster like 'A' */
715 int num;
716 {
717 	u.ustr -= num;
718 	while(u.ustr < 3) {
719 		u.ustr++;
720 		u.uhp -= 6;
721 		u.uhpmax -= 6;
722 	}
723 	flags.botl = 1;
724 }
725 
726 losehp(n,knam)
727 int n;
728 char *knam;
729 {
730 	u.uhp -= n;
731 	if(u.uhp > u.uhpmax)
732 		u.uhpmax = u.uhp;	/* perhaps n was negative */
733 	flags.botl = 1;
734 	if(u.uhp < 1) {
735 		killer = knam;	/* the thing that killed you */
736 		done("died");
737 	}
738 }
739 
740 losehp_m(n,mtmp)
741 int n;
742 struct monst *mtmp;
743 {
744 	u.uhp -= n;
745 	flags.botl = 1;
746 	if(u.uhp < 1)
747 		done_in_by(mtmp);
748 }
749 
750 losexp()	/* hit by V or W */
751 {
752 	int num;
753 	extern long newuexp();
754 
755 	if(u.ulevel > 1)
756 		pline("Goodbye level %u.", u.ulevel--);
757 	else
758 		u.uhp = -1;
759 	num = rnd(10);
760 	u.uhp -= num;
761 	u.uhpmax -= num;
762 	u.uexp = newuexp();
763 	flags.botl = 1;
764 }
765 
766 inv_weight(){
767 struct obj *otmp = invent;
768 int wt = (u.ugold + 500)/1000;
769 int carrcap;
770 	if(Levitation)			/* pugh@cornell */
771 		carrcap = MAX_CARR_CAP;
772 	else {
773 		carrcap = 5*(((u.ustr > 18) ? 20 : u.ustr) + u.ulevel);
774 		if(carrcap > MAX_CARR_CAP) carrcap = MAX_CARR_CAP;
775 		if(Wounded_legs & LEFT_SIDE) carrcap -= 10;
776 		if(Wounded_legs & RIGHT_SIDE) carrcap -= 10;
777 	}
778 	while(otmp){
779 		wt += otmp->owt;
780 		otmp = otmp->nobj;
781 	}
782 	return(wt - carrcap);
783 }
784 
785 inv_cnt(){
786 struct obj *otmp = invent;
787 int ct = 0;
788 	while(otmp){
789 		ct++;
790 		otmp = otmp->nobj;
791 	}
792 	return(ct);
793 }
794 
795 long
796 newuexp()
797 {
798 	return(10*(1L << (u.ulevel-1)));
799 }
800