Source:NetHack 3.4.3/src/mkroom.c

From NetHackWiki
Revision as of 11:22, 22 June 2006 by Jaytbot (talk | contribs) (Automated source code upload)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to navigation Jump to search

Below is the full text to src/mkroom.c from NetHack 3.4.3. To link to a particular line, write [[mkroom.c#line123]], for example.

1.    /*	SCCS Id: @(#)mkroom.c	3.4	2001/09/06	*/
2.    /* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
3.    /* NetHack may be freely redistributed.  See license for details. */
4.    

The NetHack General Public License applies to screenshots, source code and other content from NetHack.

This content was modified from the original NetHack source code distribution (by splitting up NetHack content between wiki pages, and possibly further editing). See the page history for a list of who changed it, and on what dates.

5.    /*
6.     * Entry points:
7.     *	mkroom() -- make and stock a room of a given type
8.     *	nexttodoor() -- return TRUE if adjacent to a door
9.     *	has_dnstairs() -- return TRUE if given room has a down staircase
10.    *	has_upstairs() -- return TRUE if given room has an up staircase
11.    *	courtmon() -- generate a court monster
12.    *	save_rooms() -- save rooms into file fd
13.    *	rest_rooms() -- restore rooms from file fd
14.    */
15.   
16.   #include "hack.h"
17.   
18.   #ifdef OVLB
19.   STATIC_DCL boolean FDECL(isbig, (struct mkroom *));
20.   STATIC_DCL struct mkroom * FDECL(pick_room,(BOOLEAN_P));
21.   STATIC_DCL void NDECL(mkshop), FDECL(mkzoo,(int)), NDECL(mkswamp);
22.   STATIC_DCL void NDECL(mktemple);
23.   STATIC_DCL coord * FDECL(shrine_pos, (int));
24.   STATIC_DCL struct permonst * NDECL(morguemon);
25.   STATIC_DCL struct permonst * NDECL(antholemon);
26.   STATIC_DCL struct permonst * NDECL(squadmon);
27.   STATIC_DCL void FDECL(save_room, (int,struct mkroom *));
28.   STATIC_DCL void FDECL(rest_room, (int,struct mkroom *));
29.   #endif /* OVLB */
30.   
31.   #define sq(x) ((x)*(x))
32.   
33.   extern const struct shclass shtypes[];	/* defined in shknam.c */
34.   
35.   #ifdef OVLB
36.   
37.   STATIC_OVL boolean
38.   isbig(sroom)
39.   register struct mkroom *sroom;
40.   {
41.   	register int area = (sroom->hx - sroom->lx + 1)
42.   			   * (sroom->hy - sroom->ly + 1);
43.   	return((boolean)( area > 20 ));
44.   }
45.   
46.   void
47.   mkroom(roomtype)
48.   /* make and stock a room of a given type */
49.   int	roomtype;
50.   {
51.       if (roomtype >= SHOPBASE)
52.   	mkshop();	/* someday, we should be able to specify shop type */
53.       else switch(roomtype) {
54.   	case COURT:	mkzoo(COURT); break;
55.   	case ZOO:	mkzoo(ZOO); break;
56.   	case BEEHIVE:	mkzoo(BEEHIVE); break;
57.   	case MORGUE:	mkzoo(MORGUE); break;
58.   	case BARRACKS:	mkzoo(BARRACKS); break;
59.   	case SWAMP:	mkswamp(); break;
60.   	case TEMPLE:	mktemple(); break;
61.   	case LEPREHALL:	mkzoo(LEPREHALL); break;
62.   	case COCKNEST:	mkzoo(COCKNEST); break;
63.   	case ANTHOLE:	mkzoo(ANTHOLE); break;
64.   	default:	impossible("Tried to make a room of type %d.", roomtype);
65.       }
66.   }
67.   
68.   STATIC_OVL void
69.   mkshop()
70.   {
71.   	register struct mkroom *sroom;
72.   	int i = -1;
73.   #ifdef WIZARD
74.   	char *ep = (char *)0;	/* (init == lint suppression) */
75.   
76.   	/* first determine shoptype */
77.   	if(wizard){
78.   #ifndef MAC
79.   		ep = nh_getenv("SHOPTYPE");
80.   		if(ep){
81.   			if(*ep == 'z' || *ep == 'Z'){
82.   				mkzoo(ZOO);
83.   				return;
84.   			}
85.   			if(*ep == 'm' || *ep == 'M'){
86.   				mkzoo(MORGUE);
87.   				return;
88.   			}
89.   			if(*ep == 'b' || *ep == 'B'){
90.   				mkzoo(BEEHIVE);
91.   				return;
92.   			}
93.   			if(*ep == 't' || *ep == 'T' || *ep == '\\'){
94.   				mkzoo(COURT);
95.   				return;
96.   			}
97.   			if(*ep == 's' || *ep == 'S'){
98.   				mkzoo(BARRACKS);
99.   				return;
100.  			}
101.  			if(*ep == 'a' || *ep == 'A'){
102.  				mkzoo(ANTHOLE);
103.  				return;
104.  			}
105.  			if(*ep == 'c' || *ep == 'C'){
106.  				mkzoo(COCKNEST);
107.  				return;
108.  			}
109.  			if(*ep == 'l' || *ep == 'L'){
110.  				mkzoo(LEPREHALL);
111.  				return;
112.  			}
113.  			if(*ep == '_'){
114.  				mktemple();
115.  				return;
116.  			}
117.  			if(*ep == '}'){
118.  				mkswamp();
119.  				return;
120.  			}
121.  			for(i=0; shtypes[i].name; i++)
122.  				if(*ep == def_oc_syms[(int)shtypes[i].symb])
123.  				    goto gottype;
124.  			if(*ep == 'g' || *ep == 'G')
125.  				i = 0;
126.  			else
127.  				i = -1;
128.  		}
129.  #endif
130.  	}
131.  #ifndef MAC
132.  gottype:
133.  #endif
134.  #endif
135.  	for(sroom = &rooms[0]; ; sroom++){
136.  		if(sroom->hx < 0) return;
137.  		if(sroom - rooms >= nroom) {
138.  			pline("rooms not closed by -1?");
139.  			return;
140.  		}
141.  		if(sroom->rtype != OROOM) continue;
142.  		if(has_dnstairs(sroom) || has_upstairs(sroom))
143.  			continue;
144.  		if(
145.  #ifdef WIZARD
146.  		   (wizard && ep && sroom->doorct != 0) ||
147.  #endif
148.  			sroom->doorct == 1) break;
149.  	}
150.  	if (!sroom->rlit) {
151.  		int x, y;
152.  
153.  		for(x = sroom->lx - 1; x <= sroom->hx + 1; x++)
154.  		for(y = sroom->ly - 1; y <= sroom->hy + 1; y++)
155.  			levl[x][y].lit = 1;
156.  		sroom->rlit = 1;
157.  	}
158.  
159.  	if(i < 0) {			/* shoptype not yet determined */
160.  	    register int j;
161.  
162.  	    /* pick a shop type at random */
163.  	    for (j = rnd(100), i = 0; (j -= shtypes[i].prob) > 0; i++)
164.  		continue;
165.  
166.  	    /* big rooms cannot be wand or book shops,
167.  	     * - so make them general stores
168.  	     */
169.  	    if(isbig(sroom) && (shtypes[i].symb == WAND_CLASS
170.  				|| shtypes[i].symb == SPBOOK_CLASS)) i = 0;
171.  	}
172.  	sroom->rtype = SHOPBASE + i;
173.  
174.  	/* set room bits before stocking the shop */
175.  #ifdef SPECIALIZATION
176.  	topologize(sroom, FALSE); /* doesn't matter - this is a special room */
177.  #else
178.  	topologize(sroom);
179.  #endif
180.  
181.  	/* stock the room with a shopkeeper and artifacts */
182.  	stock_room(i, sroom);
183.  }
184.  
185.  STATIC_OVL struct mkroom *
186.  pick_room(strict)
187.  register boolean strict;
188.  /* pick an unused room, preferably with only one door */
189.  {
190.  	register struct mkroom *sroom;
191.  	register int i = nroom;
192.  
193.  	for(sroom = &rooms[rn2(nroom)]; i--; sroom++) {
194.  		if(sroom == &rooms[nroom])
195.  			sroom = &rooms[0];
196.  		if(sroom->hx < 0)
197.  			return (struct mkroom *)0;
198.  		if(sroom->rtype != OROOM)	continue;
199.  		if(!strict) {
200.  		    if(has_upstairs(sroom) || (has_dnstairs(sroom) && rn2(3)))
201.  			continue;
202.  		} else if(has_upstairs(sroom) || has_dnstairs(sroom))
203.  			continue;
204.  		if(sroom->doorct == 1 || !rn2(5)
205.  #ifdef WIZARD
206.  						|| wizard
207.  #endif
208.  							)
209.  			return sroom;
210.  	}
211.  	return (struct mkroom *)0;
212.  }
213.  
214.  STATIC_OVL void
215.  mkzoo(type)
216.  int type;
217.  {
218.  	register struct mkroom *sroom;
219.  
220.  	if ((sroom = pick_room(FALSE)) != 0) {
221.  		sroom->rtype = type;
222.  		fill_zoo(sroom);
223.  	}
224.  }
225.  
226.  void
227.  fill_zoo(sroom)
228.  struct mkroom *sroom;
229.  {
230.  	struct monst *mon;
231.  	register int sx,sy,i;
232.  	int sh, tx, ty, goldlim, type = sroom->rtype;
233.  	int rmno = (sroom - rooms) + ROOMOFFSET;
234.  	coord mm;
235.  
236.  #ifdef GCC_WARN
237.  	tx = ty = goldlim = 0;
238.  #endif
239.  
240.  	sh = sroom->fdoor;
241.  	switch(type) {
242.  	    case COURT:
243.  		if(level.flags.is_maze_lev) {
244.  		    for(tx = sroom->lx; tx <= sroom->hx; tx++)
245.  			for(ty = sroom->ly; ty <= sroom->hy; ty++)
246.  			    if(IS_THRONE(levl[tx][ty].typ))
247.  				goto throne_placed;
248.  		}
249.  		i = 100;
250.  		do {	/* don't place throne on top of stairs */
251.  			(void) somexy(sroom, &mm);
252.  			tx = mm.x; ty = mm.y;
253.  		} while (occupied((xchar)tx, (xchar)ty) && --i > 0);
254.  	    throne_placed:
255.  		/* TODO: try to ensure the enthroned monster is an M2_PRINCE */
256.  		break;
257.  	    case BEEHIVE:
258.  		tx = sroom->lx + (sroom->hx - sroom->lx + 1)/2;
259.  		ty = sroom->ly + (sroom->hy - sroom->ly + 1)/2;
260.  		if(sroom->irregular) {
261.  		    /* center might not be valid, so put queen elsewhere */
262.  		    if ((int) levl[tx][ty].roomno != rmno ||
263.  			    levl[tx][ty].edge) {
264.  			(void) somexy(sroom, &mm);
265.  			tx = mm.x; ty = mm.y;
266.  		    }
267.  		}
268.  		break;
269.  	    case ZOO:
270.  	    case LEPREHALL:
271.  		goldlim = 500 * level_difficulty();
272.  		break;
273.  	}
274.  	for(sx = sroom->lx; sx <= sroom->hx; sx++)
275.  	    for(sy = sroom->ly; sy <= sroom->hy; sy++) {
276.  		if(sroom->irregular) {
277.  		    if ((int) levl[sx][sy].roomno != rmno ||
278.  			  levl[sx][sy].edge ||
279.  			  (sroom->doorct &&
280.  			   distmin(sx, sy, doors[sh].x, doors[sh].y) <= 1))
281.  			continue;
282.  		} else if(!SPACE_POS(levl[sx][sy].typ) ||
283.  			  (sroom->doorct &&
284.  			   ((sx == sroom->lx && doors[sh].x == sx-1) ||
285.  			    (sx == sroom->hx && doors[sh].x == sx+1) ||
286.  			    (sy == sroom->ly && doors[sh].y == sy-1) ||
287.  			    (sy == sroom->hy && doors[sh].y == sy+1))))
288.  		    continue;
289.  		/* don't place monster on explicitly placed throne */
290.  		if(type == COURT && IS_THRONE(levl[sx][sy].typ))
291.  		    continue;
292.  		mon = makemon(
293.  		    (type == COURT) ? courtmon() :
294.  		    (type == BARRACKS) ? squadmon() :
295.  		    (type == MORGUE) ? morguemon() :
296.  		    (type == BEEHIVE) ?
297.  			(sx == tx && sy == ty ? &mons[PM_QUEEN_BEE] :
298.  			 &mons[PM_KILLER_BEE]) :
299.  		    (type == LEPREHALL) ? &mons[PM_LEPRECHAUN] :
300.  		    (type == COCKNEST) ? &mons[PM_COCKATRICE] :
301.  		    (type == ANTHOLE) ? antholemon() :
302.  		    (struct permonst *) 0,
303.  		   sx, sy, NO_MM_FLAGS);
304.  		if(mon) {
305.  			mon->msleeping = 1;
306.  			if (type==COURT && mon->mpeaceful) {
307.  				mon->mpeaceful = 0;
308.  				set_malign(mon);
309.  			}
310.  		}
311.  		switch(type) {
312.  		    case ZOO:
313.  		    case LEPREHALL:
314.  			if(sroom->doorct)
315.  			{
316.  			    int distval = dist2(sx,sy,doors[sh].x,doors[sh].y);
317.  			    i = sq(distval);
318.  			}
319.  			else
320.  			    i = goldlim;
321.  			if(i >= goldlim) i = 5*level_difficulty();
322.  			goldlim -= i;
323.  			(void) mkgold((long) rn1(i, 10), sx, sy);
324.  			break;
325.  		    case MORGUE:
326.  			if(!rn2(5))
327.  			    (void) mk_tt_object(CORPSE, sx, sy);
328.  			if(!rn2(10))	/* lots of treasure buried with dead */
329.  			    (void) mksobj_at((rn2(3)) ? LARGE_BOX : CHEST,
330.  					     sx, sy, TRUE, FALSE);
331.  			if (!rn2(5))
332.  			    make_grave(sx, sy, (char *)0);
333.  			break;
334.  		    case BEEHIVE:
335.  			if(!rn2(3))
336.  			    (void) mksobj_at(LUMP_OF_ROYAL_JELLY,
337.  					     sx, sy, TRUE, FALSE);
338.  			break;
339.  		    case BARRACKS:
340.  			if(!rn2(20))	/* the payroll and some loot */
341.  			    (void) mksobj_at((rn2(3)) ? LARGE_BOX : CHEST,
342.  					     sx, sy, TRUE, FALSE);
343.  			break;
344.  		    case COCKNEST:
345.  			if(!rn2(3)) {
346.  			    struct obj *sobj = mk_tt_object(STATUE, sx, sy);
347.  
348.  			    if (sobj) {
349.  				for (i = rn2(5); i; i--)
350.  				    (void) add_to_container(sobj,
351.  						mkobj(RANDOM_CLASS, FALSE));
352.  				sobj->owt = weight(sobj);
353.  			    }
354.  			}
355.  			break;
356.  		    case ANTHOLE:
357.  			if(!rn2(3))
358.  			    (void) mkobj_at(FOOD_CLASS, sx, sy, FALSE);
359.  			break;
360.  		}
361.  	    }
362.  	switch (type) {
363.  	      case COURT:
364.  		{
365.  		  struct obj *chest;
366.  		  levl[tx][ty].typ = THRONE;
367.  		  (void) somexy(sroom, &mm);
368.  		  (void) mkgold((long) rn1(50 * level_difficulty(),10), mm.x, mm.y);
369.  		  /* the royal coffers */
370.  		  chest = mksobj_at(CHEST, mm.x, mm.y, TRUE, FALSE);
371.  		  chest->spe = 2; /* so it can be found later */
372.  		  level.flags.has_court = 1;
373.  		  break;
374.  		}
375.  	      case BARRACKS:
376.  		  level.flags.has_barracks = 1;
377.  		  break;
378.  	      case ZOO:
379.  		  level.flags.has_zoo = 1;
380.  		  break;
381.  	      case MORGUE:
382.  		  level.flags.has_morgue = 1;
383.  		  break;
384.  	      case SWAMP:
385.  		  level.flags.has_swamp = 1;
386.  		  break;
387.  	      case BEEHIVE:
388.  		  level.flags.has_beehive = 1;
389.  		  break;
390.  	}
391.  }
392.  
393.  /* make a swarm of undead around mm */
394.  void
395.  mkundead(mm, revive_corpses, mm_flags)
396.  coord *mm;
397.  boolean revive_corpses;
398.  int mm_flags;
399.  {
400.  	int cnt = (level_difficulty() + 1)/10 + rnd(5);
401.  	struct permonst *mdat;
402.  	struct obj *otmp;
403.  	coord cc;
404.  
405.  	while (cnt--) {
406.  	    mdat = morguemon();
407.  	    if (enexto(&cc, mm->x, mm->y, mdat) &&
408.  		    (!revive_corpses ||
409.  		     !(otmp = sobj_at(CORPSE, cc.x, cc.y)) ||
410.  		     !revive(otmp)))
411.  		(void) makemon(mdat, cc.x, cc.y, mm_flags);
412.  	}
413.  	level.flags.graveyard = TRUE;	/* reduced chance for undead corpse */
414.  }
415.  
416.  STATIC_OVL struct permonst *
417.  morguemon()
418.  {
419.  	register int i = rn2(100), hd = rn2(level_difficulty());
420.  
421.  	if(hd > 10 && i < 10)
422.  		return((Inhell || In_endgame(&u.uz)) ? mkclass(S_DEMON,0) :
423.  						       &mons[ndemon(A_NONE)]);
424.  	if(hd > 8 && i > 85)
425.  		return(mkclass(S_VAMPIRE,0));
426.  
427.  	return((i < 20) ? &mons[PM_GHOST]
428.  			: (i < 40) ? &mons[PM_WRAITH] : mkclass(S_ZOMBIE,0));
429.  }
430.  
431.  STATIC_OVL struct permonst *
432.  antholemon()
433.  {
434.  	int mtyp;
435.  
436.  	/* Same monsters within a level, different ones between levels */
437.  	switch ((level_difficulty() + ((long)u.ubirthday)) % 3) {
438.  	default:	mtyp = PM_GIANT_ANT; break;
439.  	case 0:		mtyp = PM_SOLDIER_ANT; break;
440.  	case 1:		mtyp = PM_FIRE_ANT; break;
441.  	}
442.  	return ((mvitals[mtyp].mvflags & G_GONE) ?
443.  			(struct permonst *)0 : &mons[mtyp]);
444.  }
445.  
446.  STATIC_OVL void
447.  mkswamp()	/* Michiel Huisjes & Fred de Wilde */
448.  {
449.  	register struct mkroom *sroom;
450.  	register int sx,sy,i,eelct = 0;
451.  
452.  	for(i=0; i<5; i++) {		/* turn up to 5 rooms swampy */
453.  		sroom = &rooms[rn2(nroom)];
454.  		if(sroom->hx < 0 || sroom->rtype != OROOM ||
455.  		   has_upstairs(sroom) || has_dnstairs(sroom))
456.  			continue;
457.  
458.  		/* satisfied; make a swamp */
459.  		sroom->rtype = SWAMP;
460.  		for(sx = sroom->lx; sx <= sroom->hx; sx++)
461.  		for(sy = sroom->ly; sy <= sroom->hy; sy++)
462.  		if(!OBJ_AT(sx, sy) &&
463.  		   !MON_AT(sx, sy) && !t_at(sx,sy) && !nexttodoor(sx,sy)) {
464.  		    if((sx+sy)%2) {
465.  			levl[sx][sy].typ = POOL;
466.  			if(!eelct || !rn2(4)) {
467.  			    /* mkclass() won't do, as we might get kraken */
468.  			    (void) makemon(rn2(5) ? &mons[PM_GIANT_EEL]
469.  						  : rn2(2) ? &mons[PM_PIRANHA]
470.  						  : &mons[PM_ELECTRIC_EEL],
471.  						sx, sy, NO_MM_FLAGS);
472.  			    eelct++;
473.  			}
474.  		    } else
475.  			if(!rn2(4))	/* swamps tend to be moldy */
476.  			    (void) makemon(mkclass(S_FUNGUS,0),
477.  						sx, sy, NO_MM_FLAGS);
478.  		}
479.  		level.flags.has_swamp = 1;
480.  	}
481.  }
482.  
483.  STATIC_OVL coord *
484.  shrine_pos(roomno)
485.  int roomno;
486.  {
487.  	static coord buf;
488.  	struct mkroom *troom = &rooms[roomno - ROOMOFFSET];
489.  
490.  	buf.x = troom->lx + ((troom->hx - troom->lx) / 2);
491.  	buf.y = troom->ly + ((troom->hy - troom->ly) / 2);
492.  	return(&buf);
493.  }
494.  
495.  STATIC_OVL void
496.  mktemple()
497.  {
498.  	register struct mkroom *sroom;
499.  	coord *shrine_spot;
500.  	register struct rm *lev;
501.  
502.  	if(!(sroom = pick_room(TRUE))) return;
503.  
504.  	/* set up Priest and shrine */
505.  	sroom->rtype = TEMPLE;
506.  	/*
507.  	 * In temples, shrines are blessed altars
508.  	 * located in the center of the room
509.  	 */
510.  	shrine_spot = shrine_pos((sroom - rooms) + ROOMOFFSET);
511.  	lev = &levl[shrine_spot->x][shrine_spot->y];
512.  	lev->typ = ALTAR;
513.  	lev->altarmask = induced_align(80);
514.  	priestini(&u.uz, sroom, shrine_spot->x, shrine_spot->y, FALSE);
515.  	lev->altarmask |= AM_SHRINE;
516.  	level.flags.has_temple = 1;
517.  }
518.  
519.  boolean
520.  nexttodoor(sx,sy)
521.  register int sx, sy;
522.  {
523.  	register int dx, dy;
524.  	register struct rm *lev;
525.  	for(dx = -1; dx <= 1; dx++) for(dy = -1; dy <= 1; dy++) {
526.  		if(!isok(sx+dx, sy+dy)) continue;
527.  		if(IS_DOOR((lev = &levl[sx+dx][sy+dy])->typ) ||
528.  		    lev->typ == SDOOR)
529.  			return(TRUE);
530.  	}
531.  	return(FALSE);
532.  }
533.  
534.  boolean
535.  has_dnstairs(sroom)
536.  register struct mkroom *sroom;
537.  {
538.  	if (sroom == dnstairs_room)
539.  		return TRUE;
540.  	if (sstairs.sx && !sstairs.up)
541.  		return((boolean)(sroom == sstairs_room));
542.  	return FALSE;
543.  }
544.  
545.  boolean
546.  has_upstairs(sroom)
547.  register struct mkroom *sroom;
548.  {
549.  	if (sroom == upstairs_room)
550.  		return TRUE;
551.  	if (sstairs.sx && sstairs.up)
552.  		return((boolean)(sroom == sstairs_room));
553.  	return FALSE;
554.  }
555.  
556.  #endif /* OVLB */
557.  #ifdef OVL0
558.  
559.  int
560.  somex(croom)
561.  register struct mkroom *croom;
562.  {
563.  	return rn2(croom->hx-croom->lx+1) + croom->lx;
564.  }
565.  
566.  int
567.  somey(croom)
568.  register struct mkroom *croom;
569.  {
570.  	return rn2(croom->hy-croom->ly+1) + croom->ly;
571.  }
572.  
573.  boolean
574.  inside_room(croom, x, y)
575.  struct mkroom *croom;
576.  xchar x, y;
577.  {
578.  	return((boolean)(x >= croom->lx-1 && x <= croom->hx+1 &&
579.  		y >= croom->ly-1 && y <= croom->hy+1));
580.  }
581.  
582.  boolean
583.  somexy(croom, c)
584.  struct mkroom *croom;
585.  coord *c;
586.  {
587.  	int try_cnt = 0;
588.  	int i;
589.  
590.  	if (croom->irregular) {
591.  	    i = (croom - rooms) + ROOMOFFSET;
592.  
593.  	    while(try_cnt++ < 100) {
594.  		c->x = somex(croom);
595.  		c->y = somey(croom);
596.  		if (!levl[c->x][c->y].edge &&
597.  			(int) levl[c->x][c->y].roomno == i)
598.  		    return TRUE;
599.  	    }
600.  	    /* try harder; exhaustively search until one is found */
601.  	    for(c->x = croom->lx; c->x <= croom->hx; c->x++)
602.  		for(c->y = croom->ly; c->y <= croom->hy; c->y++)
603.  		    if (!levl[c->x][c->y].edge &&
604.  			    (int) levl[c->x][c->y].roomno == i)
605.  			return TRUE;
606.  	    return FALSE;
607.  	}
608.  
609.  	if (!croom->nsubrooms) {
610.  		c->x = somex(croom);
611.  		c->y = somey(croom);
612.  		return TRUE;
613.  	}
614.  
615.  	/* Check that coords doesn't fall into a subroom or into a wall */
616.  
617.  	while(try_cnt++ < 100) {
618.  		c->x = somex(croom);
619.  		c->y = somey(croom);
620.  		if (IS_WALL(levl[c->x][c->y].typ))
621.  		    continue;
622.  		for(i=0 ; i<croom->nsubrooms;i++)
623.  		    if(inside_room(croom->sbrooms[i], c->x, c->y))
624.  			goto you_lose;
625.  		break;
626.  you_lose:	;
627.  	}
628.  	if (try_cnt >= 100)
629.  	    return FALSE;
630.  	return TRUE;
631.  }
632.  
633.  /*
634.   * Search for a special room given its type (zoo, court, etc...)
635.   *	Special values :
636.   *		- ANY_SHOP
637.   *		- ANY_TYPE
638.   */
639.  
640.  struct mkroom *
641.  search_special(type)
642.  schar type;
643.  {
644.  	register struct mkroom *croom;
645.  
646.  	for(croom = &rooms[0]; croom->hx >= 0; croom++)
647.  	    if((type == ANY_TYPE && croom->rtype != OROOM) ||
648.  	       (type == ANY_SHOP && croom->rtype >= SHOPBASE) ||
649.  	       croom->rtype == type)
650.  		return croom;
651.  	for(croom = &subrooms[0]; croom->hx >= 0; croom++)
652.  	    if((type == ANY_TYPE && croom->rtype != OROOM) ||
653.  	       (type == ANY_SHOP && croom->rtype >= SHOPBASE) ||
654.  	       croom->rtype == type)
655.  		return croom;
656.  	return (struct mkroom *) 0;
657.  }
658.  
659.  #endif /* OVL0 */
660.  #ifdef OVLB
661.  
662.  struct permonst *
663.  courtmon()
664.  {
665.  	int     i = rn2(60) + rn2(3*level_difficulty());
666.  	if (i > 100)		return(mkclass(S_DRAGON,0));
667.  	else if (i > 95)	return(mkclass(S_GIANT,0));
668.  	else if (i > 85)	return(mkclass(S_TROLL,0));
669.  	else if (i > 75)	return(mkclass(S_CENTAUR,0));
670.  	else if (i > 60)	return(mkclass(S_ORC,0));
671.  	else if (i > 45)	return(&mons[PM_BUGBEAR]);
672.  	else if (i > 30)	return(&mons[PM_HOBGOBLIN]);
673.  	else if (i > 15)	return(mkclass(S_GNOME,0));
674.  	else			return(mkclass(S_KOBOLD,0));
675.  }
676.  
677.  #define NSTYPES (PM_CAPTAIN - PM_SOLDIER + 1)
678.  
679.  static struct {
680.      unsigned	pm;
681.      unsigned	prob;
682.  } squadprob[NSTYPES] = {
683.      {PM_SOLDIER, 80}, {PM_SERGEANT, 15}, {PM_LIEUTENANT, 4}, {PM_CAPTAIN, 1}
684.  };
685.  
686.  STATIC_OVL struct permonst *
687.  squadmon()		/* return soldier types. */
688.  {
689.  	int sel_prob, i, cpro, mndx;
690.  
691.  	sel_prob = rnd(80+level_difficulty());
692.  
693.  	cpro = 0;
694.  	for (i = 0; i < NSTYPES; i++) {
695.  	    cpro += squadprob[i].prob;
696.  	    if (cpro > sel_prob) {
697.  		mndx = squadprob[i].pm;
698.  		goto gotone;
699.  	    }
700.  	}
701.  	mndx = squadprob[rn2(NSTYPES)].pm;
702.  gotone:
703.  	if (!(mvitals[mndx].mvflags & G_GONE)) return(&mons[mndx]);
704.  	else			    return((struct permonst *) 0);
705.  }
706.  
707.  /*
708.   * save_room : A recursive function that saves a room and its subrooms
709.   * (if any).
710.   */
711.  
712.  STATIC_OVL void
713.  save_room(fd, r)
714.  int	fd;
715.  struct mkroom *r;
716.  {
717.  	short i;
718.  	/*
719.  	 * Well, I really should write only useful information instead
720.  	 * of writing the whole structure. That is I should not write
721.  	 * the subrooms pointers, but who cares ?
722.  	 */
723.  	bwrite(fd, (genericptr_t) r, sizeof(struct mkroom));
724.  	for(i=0; i<r->nsubrooms; i++)
725.  	    save_room(fd, r->sbrooms[i]);
726.  }
727.  
728.  /*
729.   * save_rooms : Save all the rooms on disk!
730.   */
731.  
732.  void
733.  save_rooms(fd)
734.  int fd;
735.  {
736.  	short i;
737.  
738.  	/* First, write the number of rooms */
739.  	bwrite(fd, (genericptr_t) &nroom, sizeof(nroom));
740.  	for(i=0; i<nroom; i++)
741.  	    save_room(fd, &rooms[i]);
742.  }
743.  
744.  STATIC_OVL void
745.  rest_room(fd, r)
746.  int fd;
747.  struct mkroom *r;
748.  {
749.  	short i;
750.  
751.  	mread(fd, (genericptr_t) r, sizeof(struct mkroom));
752.  	for(i=0; i<r->nsubrooms; i++) {
753.  		r->sbrooms[i] = &subrooms[nsubroom];
754.  		rest_room(fd, &subrooms[nsubroom]);
755.  		subrooms[nsubroom++].resident = (struct monst *)0;
756.  	}
757.  }
758.  
759.  /*
760.   * rest_rooms : That's for restoring rooms. Read the rooms structure from
761.   * the disk.
762.   */
763.  
764.  void
765.  rest_rooms(fd)
766.  int	fd;
767.  {
768.  	short i;
769.  
770.  	mread(fd, (genericptr_t) &nroom, sizeof(nroom));
771.  	nsubroom = 0;
772.  	for(i = 0; i<nroom; i++) {
773.  	    rest_room(fd, &rooms[i]);
774.  	    rooms[i].resident = (struct monst *)0;
775.  	}
776.  	rooms[nroom].hx = -1;		/* restore ending flags */
777.  	subrooms[nsubroom].hx = -1;
778.  }
779.  #endif /* OVLB */
780.  
781.  /*mkroom.c*/