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Comparing deliantra/server/common/map.C (file contents):
Revision 1.45 by root, Wed Dec 20 09:14:21 2006 UTC vs.
Revision 1.115 by root, Wed Aug 1 01:53:13 2007 UTC

1	/*	1	/*
2	CrossFire, A Multiplayer game for X-windows	2	* This file is part of Crossfire TRT, the Roguelike Realtime MORPG.
3		3	*
		4	* Copyright (©) 2005,2006,2007 Marc Alexander Lehmann / Robin Redeker / the Crossfire TRT team
4	Copyright (C) 2001-2003 Mark Wedel & Crossfire Development Team	5	* Copyright (©) 2001-2003,2007 Mark Wedel & Crossfire Development Team
5	Copyright (C) 1992 Frank Tore Johansen	6	* Copyright (©) 1992,2007 Frank Tore Johansen
6		7	*
7	This program is free software; you can redistribute it and/or modify	8	* Crossfire TRT is free software: you can redistribute it and/or modify
8	it under the terms of the GNU General Public License as published by	9	* it under the terms of the GNU General Public License as published by
9	the Free Software Foundation; either version 2 of the License, or	10	* the Free Software Foundation, either version 3 of the License, or
10	(at your option) any later version.	11	* (at your option) any later version.
11		12	*
12	This program is distributed in the hope that it will be useful,	13	* This program is distributed in the hope that it will be useful,
13	but WITHOUT ANY WARRANTY; without even the implied warranty of	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15	GNU General Public License for more details.	16	* GNU General Public License for more details.
16		17	*
17	You should have received a copy of the GNU General Public License	18	* You should have received a copy of the GNU General Public License
18	along with this program; if not, write to the Free Software	19	* along with this program. If not, see <http://www.gnu.org/licenses/>.
19	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	20	*
20
21	The authors can be reached via e-mail at <crossfire@schmorp.de>	21	* The authors can be reached via e-mail to <crossfire@schmorp.de>
22	*/	22	*/
23		23
24
25	#include <global.h>
26	#include <funcpoint.h>
27
28	#include <loader.h>
29	#include <unistd.h>	24	#include <unistd.h>
30		25
		26	#include "global.h"
		27	#include "funcpoint.h"
		28
		29	#include "loader.h"
		30
31	#include "path.h"	31	#include "path.h"
32
33	/*
34	* Returns the maptile which has a name matching the given argument.
35	* return NULL if no match is found.
36	*/
37
38	maptile *
39	has_been_loaded (const char *name)
40	{
41	maptile *map;
42
43	if (!name || !*name)
44	return 0;
45	for (map = first_map; map; map = map->next)
46	if (!strcmp (name, map->path))
47	break;
48	return (map);
49	}
50
51	/*
52	* This makes a path absolute outside the world of Crossfire.
53	* In other words, it prepends LIBDIR/MAPDIR/ to the given path
54	* and returns the pointer to a static array containing the result.
55	* it really should be called create_mapname
56	*/
57
58	const char *
59	create_pathname (const char *name)
60	{
61	static char buf[MAX_BUF];
62
63	/* Why? having extra / doesn't confuse unix anyplace? Dependancies
64	* someplace else in the code? msw 2-17-97
65	*/
66	if (*name == '/')
67	sprintf (buf, "%s/%s%s", settings.datadir, settings.mapdir, name);
68	else
69	sprintf (buf, "%s/%s/%s", settings.datadir, settings.mapdir, name);
70	return (buf);
71	}
72
73	/*
74	* same as create_pathname, but for the overlay maps.
75	*/
76
77	const char *
78	create_overlay_pathname (const char *name)
79	{
80	static char buf[MAX_BUF];
81
82	/* Why? having extra / doesn't confuse unix anyplace? Dependancies
83	* someplace else in the code? msw 2-17-97
84	*/
85	if (*name == '/')
86	sprintf (buf, "%s/%s%s", settings.localdir, settings.mapdir, name);
87	else
88	sprintf (buf, "%s/%s/%s", settings.localdir, settings.mapdir, name);
89	return (buf);
90	}
91
92	/*
93	* same as create_pathname, but for the template maps.
94	*/
95
96	const char *
97	create_template_pathname (const char *name)
98	{
99	static char buf[MAX_BUF];
100
101	/* Why? having extra / doesn't confuse unix anyplace? Dependancies
102	* someplace else in the code? msw 2-17-97
103	*/
104	if (*name == '/')
105	sprintf (buf, "%s/%s%s", settings.localdir, settings.templatedir, name);
106	else
107	sprintf (buf, "%s/%s/%s", settings.localdir, settings.templatedir, name);
108	return (buf);
109	}
110
111	/*
112	* This makes absolute path to the itemfile where unique objects
113	* will be saved. Converts '/' to '@'. I think it's essier maintain
114	* files than full directory structure, but if this is problem it can
115	* be changed.
116	*/
117	static const char *
118	create_items_path (const char *s)
119	{
120	static char buf[MAX_BUF];
121	char *t;
122
123	if (*s == '/')
124	s++;
125
126	sprintf (buf, "%s/%s/", settings.localdir, settings.uniquedir);
127
128	for (t = buf + strlen (buf); *s; s++, t++)
129	if (*s == '/')
130	*t = '@';
131	else
132	*t = *s;
133	*t = 0;
134	return (buf);
135	}
136
137
138	/*
139	* This function checks if a file with the given path exists.
140	* -1 is returned if it fails, otherwise the mode of the file
141	* is returned.
142	* It tries out all the compression suffixes listed in the uncomp[] array.
143	*
144	* If prepend_dir is set, then we call create_pathname (which prepends
145	* libdir & mapdir). Otherwise, we assume the name given is fully
146	* complete.
147	* Only the editor actually cares about the writablity of this -
148	* the rest of the code only cares that the file is readable.
149	* when the editor goes away, the call to stat should probably be
150	* replaced by an access instead (similar to the windows one, but
151	* that seems to be missing the prepend_dir processing
152	*/
153
154	int
155	check_path (const char *name, int prepend_dir)
156	{
157	char buf[MAX_BUF];
158
159	char *endbuf;
160	struct stat statbuf;
161	int mode = 0;
162
163	if (prepend_dir)
164	strcpy (buf, create_pathname (name));
165	else
166	strcpy (buf, name);
167
168	/* old method (strchr(buf, '\0')) seemd very odd to me -
169	* this method should be equivalant and is clearer.
170	* Can not use strcat because we need to cycle through
171	* all the names.
172	*/
173	endbuf = buf + strlen (buf);
174
175	if (stat (buf, &statbuf))
176	return -1;
177	if (!S_ISREG (statbuf.st_mode))
178	return (-1);
179
180	if (((statbuf.st_mode & S_IRGRP) && getegid () == statbuf.st_gid) ||
181	((statbuf.st_mode & S_IRUSR) && geteuid () == statbuf.st_uid) || (statbuf.st_mode & S_IROTH))
182	mode |= 4;
183
184	if ((statbuf.st_mode & S_IWGRP && getegid () == statbuf.st_gid) ||
185	(statbuf.st_mode & S_IWUSR && geteuid () == statbuf.st_uid) || (statbuf.st_mode & S_IWOTH))
186	mode |= 2;
187
188	return (mode);
189	}
190
191	/*
192	* Prints out debug-information about a map.
193	* Dumping these at llevError doesn't seem right, but is
194	* necessary to make sure the information is in fact logged.
195	*/
196
197	void
198	dump_map (const maptile *m)
199	{
200	LOG (llevError, "Map %s status: %d.\n", m->path, m->in_memory);
201	LOG (llevError, "Size: %dx%d Start: %d,%d\n", MAP_WIDTH (m), MAP_HEIGHT (m), MAP_ENTER_X (m), MAP_ENTER_Y (m));
202
203	if (m->msg != NULL)
204	LOG (llevError, "Message:\n%s", m->msg);
205
206	if (m->maplore != NULL)
207	LOG (llevError, "Lore:\n%s", m->maplore);
208
209	if (m->tmpname != NULL)
210	LOG (llevError, "Tmpname: %s\n", m->tmpname);
211
212	LOG (llevError, "Difficulty: %d\n", m->difficulty);
213	LOG (llevError, "Darkness: %d\n", m->darkness);
214	}
215
216	/*
217	* Prints out debug-information about all maps.
218	* This basically just goes through all the maps and calls
219	* dump_map on each one.
220	*/
221
222	void
223	dump_all_maps (void)
224	{
225	maptile *m;
226
227	for (m = first_map; m != NULL; m = m->next)
228	{
229	dump_map (m);
230	}
231	}
232		32
233	/* This rolls up wall, blocks_magic, blocks_view, etc, all into	33	/* This rolls up wall, blocks_magic, blocks_view, etc, all into
234	* one function that just returns a P_.. value (see map.h)	34	* one function that just returns a P_.. value (see map.h)
235	* it will also do map translation for tiled maps, returning	35	* it will also do map translation for tiled maps, returning
236	* new values into newmap, nx, and ny. Any and all of those	36	* new values into newmap, nx, and ny. Any and all of those
…		…
239	* is needed. The case of not passing values is if we're just	39	* is needed. The case of not passing values is if we're just
240	* checking for the existence of something on those spaces, but	40	* checking for the existence of something on those spaces, but
241	* don't expect to insert/remove anything from those spaces.	41	* don't expect to insert/remove anything from those spaces.
242	*/	42	*/
243	int	43	int
244	get_map_flags (maptile *oldmap, maptile **newmap, sint16 x, sint16 y, sint16 * nx, sint16 * ny)	44	get_map_flags (maptile *oldmap, maptile **newmap, sint16 x, sint16 y, sint16 *nx, sint16 *ny)
245	{	45	{
246	sint16 newx, newy;	46	sint16 newx = x;
247	int retval = 0;	47	sint16 newy = y;
248	maptile *mp;
249		48
250	if (out_of_map (oldmap, x, y))	49	maptile *mp = get_map_from_coord (oldmap, &newx, &newy);
		50
		51	if (!mp)
251	return P_OUT_OF_MAP;	52	return P_OUT_OF_MAP;
252	newx = x;
253	newy = y;
254	mp = get_map_from_coord (oldmap, &newx, &newy);
255	if (mp != oldmap)
256	retval |= P_NEW_MAP;
257	if (newmap)
258	*newmap = mp;
259	if (nx)
260	*nx = newx;
261	if (ny)
262	*ny = newy;
263		53
264	retval |= mp->spaces[newx + mp->width * newy].flags;	54	if (newmap) *newmap = mp;
		55	if (nx) *nx = newx;
		56	if (ny) *ny = newy;
265		57
266	return retval;	58	return mp->at (newx, newy).flags () | (mp != oldmap ? P_NEW_MAP : 0);
267	}	59	}
268		60
269	/*	61	/*
270	* Returns true if the given coordinate is blocked except by the	62	* Returns true if the given coordinate is blocked except by the
271	* object passed is not blocking. This is used with	63	* object passed is not blocking. This is used with
…		…
294	}	86	}
295		87
296	/* Save some cycles - instead of calling get_map_flags(), just get the value	88	/* Save some cycles - instead of calling get_map_flags(), just get the value
297	* directly.	89	* directly.
298	*/	90	*/
299	mflags = m->spaces[sx + m->width * sy].flags;	91	mflags = m->at (sx, sy).flags ();
300		92
301	blocked = GET_MAP_MOVE_BLOCK (m, sx, sy);	93	blocked = GET_MAP_MOVE_BLOCK (m, sx, sy);
302		94
303	/* If space is currently not blocked by anything, no need to	95	/* If space is currently not blocked by anything, no need to
304	* go further. Not true for players - all sorts of special	96	* go further. Not true for players - all sorts of special
…		…
315	* let the player through (inventory checkers for example)	107	* let the player through (inventory checkers for example)
316	*/	108	*/
317	if (!(mflags & P_IS_ALIVE) && !OB_TYPE_MOVE_BLOCK (ob, blocked))	109	if (!(mflags & P_IS_ALIVE) && !OB_TYPE_MOVE_BLOCK (ob, blocked))
318	return 0;	110	return 0;
319		111
320	if (ob->head != NULL)
321	ob = ob->head;	112	ob = ob->head_ ();
322		113
323	/* We basically go through the stack of objects, and if there is	114	/* We basically go through the stack of objects, and if there is
324	* some other object that has NO_PASS or FLAG_ALIVE set, return	115	* some other object that has NO_PASS or FLAG_ALIVE set, return
325	* true. If we get through the entire stack, that must mean	116	* true. If we get through the entire stack, that must mean
326	* ob is blocking it, so return 0.	117	* ob is blocking it, so return 0.
…		…
356	else	147	else
357	{	148	{
358	/* Broke apart a big nasty if into several here to make	149	/* Broke apart a big nasty if into several here to make
359	* this more readable. first check - if the space blocks	150	* this more readable. first check - if the space blocks
360	* movement, can't move here.	151	* movement, can't move here.
361	* second - if a monster, can't move there, unles it is a	152	* second - if a monster, can't move there, unless it is a
362	* hidden dm	153	* hidden dm
363	*/	154	*/
364	if (OB_MOVE_BLOCK (ob, tmp))	155	if (OB_MOVE_BLOCK (ob, tmp))
365	return 1;	156	return 1;
366	if (QUERY_FLAG (tmp, FLAG_ALIVE) && tmp->head != ob && tmp != ob &&	157
367	tmp->type != DOOR && !(QUERY_FLAG (tmp, FLAG_WIZ) && tmp->contr->hidden))	158	if (tmp->flag [FLAG_ALIVE]
		159	&& tmp->head_ () != ob
		160	&& tmp != ob
		161	&& tmp->type != DOOR
		162	&& !(tmp->flag [FLAG_WIZ] && tmp->contr->hidden))
368	return 1;	163	return 1;
369	}	164	}
370		165
371	}	166	}
372	return 0;	167	return 0;
373	}	168	}
374
375		169
376	/*	170	/*
377	* Returns true if the given object can't fit in the given spot.	171	* Returns true if the given object can't fit in the given spot.
378	* This is meant for multi space objects - for single space objecs,	172	* This is meant for multi space objects - for single space objecs,
379	* just calling get_map_blocked and checking that against movement type	173	* just calling get_map_blocked and checking that against movement type
…		…
405	archetype *tmp;	199	archetype *tmp;
406	int flag;	200	int flag;
407	maptile *m1;	201	maptile *m1;
408	sint16 sx, sy;	202	sint16 sx, sy;
409		203
410	if (ob == NULL)	204	if (!ob)
411	{	205	{
412	flag = get_map_flags (m, &m1, x, y, &sx, &sy);	206	flag = get_map_flags (m, &m1, x, y, &sx, &sy);
413	if (flag & P_OUT_OF_MAP)	207	if (flag & P_OUT_OF_MAP)
414	return P_OUT_OF_MAP;	208	return P_OUT_OF_MAP;
415		209
416	/* don't have object, so don't know what types would block */	210	/* don't have object, so don't know what types would block */
417	return (GET_MAP_MOVE_BLOCK (m1, sx, sy));	211	return m1->at (sx, sy).move_block;
418	}	212	}
419		213
420	for (tmp = ob->arch; tmp != NULL; tmp = tmp->more)	214	for (tmp = ob->arch; tmp; tmp = (archetype *)tmp->more)
421	{	215	{
422	flag = get_map_flags (m, &m1, x + tmp->clone.x, y + tmp->clone.y, &sx, &sy);	216	flag = get_map_flags (m, &m1, x + tmp->x, y + tmp->y, &sx, &sy);
423		217
424	if (flag & P_OUT_OF_MAP)	218	if (flag & P_OUT_OF_MAP)
425	return P_OUT_OF_MAP;	219	return P_OUT_OF_MAP;
426	if (flag & P_IS_ALIVE)	220	if (flag & P_IS_ALIVE)
427	return P_IS_ALIVE;	221	return P_IS_ALIVE;
428		222
		223	mapspace &ms = m1->at (sx, sy);
		224
429	/* find_first_free_spot() calls this function. However, often	225	/* find_first_free_spot() calls this function. However, often
430	* ob doesn't have any move type (when used to place exits)	226	* ob doesn't have any move type (when used to place exits)
431	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.	227	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.
432	*/	228	*/
433		229
434	if (ob->move_type == 0 && GET_MAP_MOVE_BLOCK (m1, sx, sy) != MOVE_ALL)	230	if (ob->move_type == 0 && ms.move_block != MOVE_ALL)
435	continue;	231	continue;
436		232
437	/* Note it is intentional that we check ob - the movement type of the	233	/* Note it is intentional that we check ob - the movement type of the
438	* head of the object should correspond for the entire object.	234	* head of the object should correspond for the entire object.
439	*/	235	*/
440	if (OB_TYPE_MOVE_BLOCK (ob, GET_MAP_MOVE_BLOCK (m1, sx, sy)))	236	if (OB_TYPE_MOVE_BLOCK (ob, ms.move_block))
441	return P_NO_PASS;	237	return P_NO_PASS;
442	}	238	}
443		239
444	return 0;	240	return 0;
445	}	241	}
…		…
448	* into inventory, but just links them. What this does is go through	244	* into inventory, but just links them. What this does is go through
449	* and insert them properly.	245	* and insert them properly.
450	* The object 'container' is the object that contains the inventory.	246	* The object 'container' is the object that contains the inventory.
451	* This is needed so that we can update the containers weight.	247	* This is needed so that we can update the containers weight.
452	*/	248	*/
453
454	void	249	void
455	fix_container (object *container)	250	fix_container (object *container)
456	{	251	{
457	object *tmp = container->inv, *next;	252	object *tmp = container->inv, *next;
458		253
459	container->inv = NULL;	254	container->inv = 0;
460	while (tmp != NULL)	255	while (tmp)
461	{	256	{
462	next = tmp->below;	257	next = tmp->below;
463	if (tmp->inv)	258	if (tmp->inv)
464	fix_container (tmp);	259	fix_container (tmp);
		260
465	(void) insert_ob_in_ob (tmp, container);	261	insert_ob_in_ob (tmp, container);
466	tmp = next;	262	tmp = next;
467	}	263	}
		264
468	/* sum_weight will go through and calculate what all the containers are	265	/* sum_weight will go through and calculate what all the containers are
469	* carrying.	266	* carrying.
470	*/	267	*/
471	sum_weight (container);	268	sum_weight (container);
472	}	269	}
473		270
		271	void
		272	maptile::set_object_flag (int flag, int value)
		273	{
		274	if (!spaces)
		275	return;
		276
		277	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		278	for (object *tmp = ms->bot; tmp; tmp = tmp->above)
		279	tmp->flag [flag] = value;
		280	}
		281
474	/* link_multipart_objects go through all the objects on the map looking	282	/* link_multipart_objects go through all the objects on the map looking
475	* for objects whose arch says they are multipart yet according to the	283	* for objects whose arch says they are multipart yet according to the
476	* info we have, they only have the head (as would be expected when	284	* info we have, they only have the head (as would be expected when
477	* they are saved). We do have to look for the old maps that did save	285	* they are saved).
478	* the more sections and not re-add sections for them.
479	*/	286	*/
480		287	void
481	static void	288	maptile::link_multipart_objects ()
482	link_multipart_objects (maptile *m)
483	{	289	{
484	int x, y;	290	if (!spaces)
485	object *tmp, *op, *last, *above;	291	return;
486	archetype *at;
487		292
488	for (x = 0; x < MAP_WIDTH (m); x++)	293	for (mapspace *ms = spaces + size (); ms-- > spaces; )
489	for (y = 0; y < MAP_HEIGHT (m); y++)	294	{
490	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = above)	295	object *op = ms->bot;
		296	while (op)
491	{	297	{
492	above = tmp->above;
493
494	/* already multipart - don't do anything more */	298	/* already multipart - don't do anything more */
495	if (tmp->head || tmp->more)	299	if (op->head_ () == op && !op->more && op->arch->more)
496	continue;
497
498	/* If there is nothing more to this object, this for loop
499	* won't do anything.
500	*/
501	for (at = tmp->arch->more, last = tmp; at != NULL; at = at->more, last = op)
502	{	300	{
503	op = arch_to_object (at);	301	op->remove ();
		302	op->expand_tail ();
504		303
505	/* update x,y coordinates */	304	// FIXME: INS_ON_TOP is just a workaround for the pentagram vs.
506	op->x += tmp->x;	305	// multi-tile monster bug, where INS_ABOVE_FLOOR_ONLY put the monsters
507	op->y += tmp->y;	306	// below the pentagrams... hopefully INS_ON_TOP doesn't break anything
508	op->head = tmp;	307	insert (op, op->x, op->y, 0, INS_NO_MERGE | INS_ON_TOP | INS_NO_WALK_ON);
509	op->map = m;	308
510	last->more = op;	309	op = ms->bot; // we are mutating the mapspace too much with INS_ON_TOP
511	op->name = tmp->name;	310	// so we have to reset the iteration through the mapspace
512	op->title = tmp->title;
513	/* we could link all the parts onto tmp, and then just
514	* call insert_ob_in_map once, but the effect is the same,
515	* as insert_ob_in_map will call itself with each part, and
516	* the coding is simpler to just to it here with each part.
517	*/	311	}
518	insert_ob_in_map (op, op->map, tmp, INS_NO_MERGE | INS_ABOVE_FLOOR_ONLY | INS_NO_WALK_ON);	312	else
519	} /* for at = tmp->arch->more */	313	op = op->above;
520	} /* for objects on this space */	314	}
		315	}
521	}	316	}
522		317
523	/*	318	/*
524	* Loads (ands parses) the objects into a given map from the specified	319	* Loads (ands parses) the objects into a given map from the specified
525	* file pointer.	320	* file pointer.
526	* mapflags is the same as we get with load_original_map
527	*/	321	*/
528	void	322	bool
529	load_objects (maptile *m, object_thawer & fp, int mapflags)	323	maptile::_load_objects (object_thawer &f)
530	{	324	{
531	int i, j;	325	for (;;)
532	int unique;
533	object *op, *prev = NULL, *last_more = NULL, *otmp;
534
535	op = object::create ();
536	op->map = m; /* To handle buttons correctly */
537
538	while ((i = load_object (fp, op, mapflags)))
539	{	326	{
540	/* if the archetype for the object is null, means that we	327	coroapi::cede_to_tick_every (100); // cede once in a while
541	* got an invalid object. Don't do anything with it - the game	328
542	* or editor will not be able to do anything with it either.	329	switch (f.kw)
543	*/
544	if (op->arch == NULL)
545	{	330	{
546	LOG (llevDebug, "Discarding object without arch: %s\n", op->name ? (const char *) op->name : "(null)");	331	case KW_arch:
547	continue;	332	if (object *op = object::read (f, this))
548	}
549
550
551	switch (i)
552	{
553	case LL_NORMAL:
554	/* if we are loading an overlay, put the floors on the bottom */
555	if ((QUERY_FLAG (op, FLAG_IS_FLOOR) || QUERY_FLAG (op, FLAG_OVERLAY_FLOOR)) && mapflags & MAP_OVERLAY)
556	insert_ob_in_map (op, m, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ABOVE_FLOOR_ONLY | INS_MAP_LOAD);
557	else	333	{
		334	if (op->inv)
		335	sum_weight (op);
		336
558	insert_ob_in_map (op, m, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ON_TOP | INS_MAP_LOAD);	337	insert_ob_in_map (op, this, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ON_TOP | INS_MAP_LOAD);
		338	}
559		339
560	if (op->inv)	340	continue;
561	sum_weight (op);
562		341
563	prev = op, last_more = op;
564	break;
565
566	case LL_MORE:	342	case KW_EOF:
567	insert_ob_in_map (op, m, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ABOVE_FLOOR_ONLY);	343	return true;
568	op->head = prev, last_more->more = op, last_more = op;	344
		345	default:
		346	if (!f.parse_error ("map file"))
		347	return false;
569	break;	348	break;
570	}	349	}
571		350
572	if (mapflags & MAP_STYLE)	351	f.next ();
573	remove_from_active_list (op);
574
575	op = object::create ();
576	op->map = m;
577	}
578
579	for (i = 0; i < m->width; i++)
580	{	352	}
581	for (j = 0; j < m->height; j++)	353
		354	return true;
		355	}
		356
		357	void
		358	maptile::activate ()
		359	{
		360	active = true;
		361
		362	if (spaces)
		363	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		364	for (object *op = ms->bot; op; op = op->above)
		365	op->activate_recursive ();
		366	}
		367
		368	void
		369	maptile::deactivate ()
		370	{
		371	active = false;
		372
		373	if (spaces)
		374	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		375	for (object *op = ms->bot; op; op = op->above)
		376	op->deactivate_recursive ();
		377	}
		378
		379	bool
		380	maptile::_save_objects (object_freezer &f, int flags)
		381	{
		382	coroapi::cede_to_tick ();
		383
		384	if (flags & IO_HEADER)
		385	_save_header (f);
		386
		387	if (!spaces)
		388	return false;
		389
		390	for (int i = 0; i < size (); ++i)
		391	{
		392	int unique = 0;
		393	for (object *op = spaces [i].bot; op; op = op->above)
582	{	394	{
		395	if (op->flag [FLAG_UNIQUE] && op->flag [FLAG_IS_FLOOR])
583	unique = 0;	396	unique = 1;
584	/* check for unique items, or unique squares */	397
585	for (otmp = GET_MAP_OB (m, i, j); otmp; otmp = otmp->above)	398	if (!op->can_map_save ())
		399	continue;
		400
		401	if (unique || op->flag [FLAG_UNIQUE])
586	{	402	{
587	if (QUERY_FLAG (otmp, FLAG_UNIQUE) || QUERY_FLAG (otmp, FLAG_OBJ_SAVE_ON_OVL))	403	if (flags & IO_UNIQUES)
588	unique = 1;	404	op->write (f);
589
590	if (!(mapflags & (MAP_OVERLAY | MAP_PLAYER_UNIQUE) || unique))
591	SET_FLAG (otmp, FLAG_OBJ_ORIGINAL);
592	}	405	}
		406	else if (flags & IO_OBJECTS)
		407	op->write (f);
593	}	408	}
594	}	409	}
595		410
596	op->destroy ();	411	coroapi::cede_to_tick ();
597	link_multipart_objects (m);
598	}
599		412
600	/* This saves all the objects on the map in a non destructive fashion.	413	return true;
601	* Modified by MSW 2001-07-01 to do in a single pass - reduces code,	414	}
602	* and we only save the head of multi part objects - this is needed
603	* in order to do map tiling properly.
604	*/
605	void
606	save_objects (maptile *m, object_freezer & fp, object_freezer & fp2, int flag)
607	{
608	int i, j = 0, unique = 0;
609	object *op;
610		415
611	/* first pass - save one-part objects */	416	bool
612	for (i = 0; i < MAP_WIDTH (m); i++)	417	maptile::_load_objects (const char *path, bool skip_header)
613	for (j = 0; j < MAP_HEIGHT (m); j++)	418	{
		419	object_thawer f (path);
		420
		421	if (!f)
		422	return false;
		423
		424	f.next ();
		425
		426	if (skip_header)
		427	for (;;)
614	{	428	{
615	unique = 0;	429	keyword kw = f.kw;
616	for (op = GET_MAP_OB (m, i, j); op; op = op->above)	430	f.skip ();
617	{	431	if (kw == KW_end)
618	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))	432	break;
619	unique = 1;
620
621	if (op->type == PLAYER)
622	continue;
623
624	if (op->head || op->owner)
625	continue;
626
627	if (unique || QUERY_FLAG (op, FLAG_UNIQUE))
628	save_object (fp2, op, 3);
629	else if (flag == 0 || (flag == 2 && (!QUERY_FLAG (op, FLAG_OBJ_ORIGINAL) && !QUERY_FLAG (op, FLAG_UNPAID))))
630	save_object (fp, op, 3);
631	}
632	}	433	}
		434
		435	return _load_objects (f);
		436	}
		437
		438	bool
		439	maptile::_save_objects (const char *path, int flags)
		440	{
		441	object_freezer freezer;
		442
		443	if (!_save_objects (freezer, flags))
		444	return false;
		445
		446	return freezer.save (path);
633	}	447	}
634		448
635	maptile::maptile ()	449	maptile::maptile ()
636	{	450	{
637	in_memory = MAP_SWAPPED;	451	in_memory = MAP_SWAPPED;
		452
638	/* The maps used to pick up default x and y values from the	453	/* The maps used to pick up default x and y values from the
639	* map archetype. Mimic that behaviour.	454	* map archetype. Mimic that behaviour.
640	*/	455	*/
641	MAP_WIDTH (this) = 16;	456	width = 16;
642	MAP_HEIGHT (this) = 16;	457	height = 16;
643	MAP_RESET_TIMEOUT (this) = 0;	458	timeout = 300;
644	MAP_TIMEOUT (this) = 300;	459	max_nrof = 1000; // 1000 items of anything
645	MAP_ENTER_X (this) = 0;	460	max_volume = 2000000; // 2m³
646	MAP_ENTER_Y (this) = 0;
647	/*set part to -1 indicating conversion to weather map not yet done */
648	MAP_WORLDPARTX (this) = -1;
649	MAP_WORLDPARTY (this) = -1;
650	}	461	}
651		462
652	/*	463	maptile::maptile (int w, int h)
653	* Allocates, initialises, and returns a pointer to a maptile.
654	* Modified to no longer take a path option which was not being
655	* used anyways. MSW 2001-07-01
656	*/
657	maptile *
658	get_linked_map (void)
659	{	464	{
660	maptile *mp, *map = new maptile;	465	in_memory = MAP_SWAPPED;
661		466
662	for (mp = first_map; mp && mp->next; mp = mp->next);	467	width = w;
		468	height = h;
		469	reset_timeout = 0;
		470	timeout = 300;
		471	enter_x = 0;
		472	enter_y = 0;
663		473
664	if (mp == NULL)	474	alloc ();
665	first_map = map;
666	else
667	mp->next = map;
668
669	return map;
670	}	475	}
671		476
672	/*	477	/*
673	* Allocates the arrays contained in a maptile.	478	* Allocates the arrays contained in a maptile.
674	* This basically allocates the dynamic array of spaces for the	479	* This basically allocates the dynamic array of spaces for the
675	* map.	480	* map.
676	*/	481	*/
677	void	482	void
678	maptile::allocate ()	483	maptile::alloc ()
679	{	484	{
680	in_memory = MAP_IN_MEMORY;
681
682	/* Log this condition and free the storage. We could I suppose
683	* realloc, but if the caller is presuming the data will be intact,
684	* that is their poor assumption.
685	*/
686	if (spaces)	485	if (spaces)
687	{
688	LOG (llevError, "allocate_map called with already allocated map (%s)\n", path);
689	free (spaces);
690	}
691
692	spaces = (mapspace *)
693	calloc (1, width * height * sizeof (mapspace));
694
695	if (!spaces)
696	fatal (OUT_OF_MEMORY);
697	}
698
699	/* Create and returns a map of the specific size. Used
700	* in random map code and the editor.
701	*/
702	maptile *
703	get_empty_map (int sizex, int sizey)
704	{
705	maptile *m = get_linked_map ();
706
707	m->width = sizex;
708	m->height = sizey;
709	m->in_memory = MAP_SWAPPED;
710	m->allocate ();
711
712	return m;	486	return;
		487
		488	spaces = salloc0<mapspace> (size ());
713	}	489	}
714		490
715	/* Takes a string from a map definition and outputs a pointer to the array of shopitems	491	/* Takes a string from a map definition and outputs a pointer to the array of shopitems
716	* corresponding to that string. Memory is allocated for this, it must be freed	492	* corresponding to that string. Memory is allocated for this, it must be freed
717	* at a later date.	493	* at a later date.
718	* Called by parse_map_headers below.	494	* Called by parse_map_headers below.
719	*/	495	*/
720
721	static shopitems *	496	static shopitems *
722	parse_shop_string (const char *input_string)	497	parse_shop_string (const char *input_string)
723	{	498	{
724	char *shop_string, *p, *q, *next_semicolon, *next_colon;	499	char *shop_string, *p, *q, *next_semicolon, *next_colon;
725	shopitems *items = NULL;	500	shopitems *items = NULL;
…		…
734	p = strchr (p, ';');	509	p = strchr (p, ';');
735	number_of_entries++;	510	number_of_entries++;
736	if (p)	511	if (p)
737	p++;	512	p++;
738	}	513	}
		514
739	p = shop_string;	515	p = shop_string;
740	strip_endline (p);	516	strip_endline (p);
741	items = new shopitems[number_of_entries + 1];	517	items = new shopitems[number_of_entries + 1];
742	for (i = 0; i < number_of_entries; i++)	518	for (i = 0; i < number_of_entries; i++)
743	{	519	{
744	if (!p)	520	if (!p)
745	{	521	{
746	LOG (llevError, "parse_shop_string: I seem to have run out of string, that shouldn't happen.\n");	522	LOG (llevError, "parse_shop_string: I seem to have run out of string, that shouldn't happen.\n");
747	break;	523	break;
748	}	524	}
		525
749	next_semicolon = strchr (p, ';');	526	next_semicolon = strchr (p, ';');
750	next_colon = strchr (p, ':');	527	next_colon = strchr (p, ':');
751	/* if there is a stregth specified, figure out what it is, we'll need it soon. */	528	/* if there is a stregth specified, figure out what it is, we'll need it soon. */
752	if (next_colon && (!next_semicolon || next_colon < next_semicolon))	529	if (next_colon && (!next_semicolon || next_colon < next_semicolon))
753	items[i].strength = atoi (strchr (p, ':') + 1);	530	items[i].strength = atoi (strchr (p, ':') + 1);
…		…
780	* the next entry while we're at it, better print a warning	557	* the next entry while we're at it, better print a warning
781	*/	558	*/
782	LOG (llevError, "invalid type %s defined in shopitems in string %s\n", p, input_string);	559	LOG (llevError, "invalid type %s defined in shopitems in string %s\n", p, input_string);
783	}	560	}
784	}	561	}
		562
785	items[i].index = number_of_entries;	563	items[i].index = number_of_entries;
786	if (next_semicolon)	564	if (next_semicolon)
787	p = ++next_semicolon;	565	p = ++next_semicolon;
788	else	566	else
789	p = NULL;	567	p = NULL;
790	}	568	}
		569
791	free (shop_string);	570	free (shop_string);
792	return items;	571	return items;
793	}	572	}
794		573
795	/* opposite of parse string, this puts the string that was originally fed in to	574	/* opposite of parse string, this puts the string that was originally fed in to
…		…
804	for (i = 0; i < m->shopitems[0].index; i++)	583	for (i = 0; i < m->shopitems[0].index; i++)
805	{	584	{
806	if (m->shopitems[i].typenum)	585	if (m->shopitems[i].typenum)
807	{	586	{
808	if (m->shopitems[i].strength)	587	if (m->shopitems[i].strength)
809	{
810	sprintf (tmp, "%s:%d;", m->shopitems[i].name, m->shopitems[i].strength);	588	sprintf (tmp, "%s:%d;", m->shopitems[i].name, m->shopitems[i].strength);
811	}
812	else	589	else
813	sprintf (tmp, "%s;", m->shopitems[i].name);	590	sprintf (tmp, "%s;", m->shopitems[i].name);
814	}	591	}
815	else	592	else
816	{	593	{
817	if (m->shopitems[i].strength)	594	if (m->shopitems[i].strength)
818	{
819	sprintf (tmp, "*:%d;", m->shopitems[i].strength);	595	sprintf (tmp, "*:%d;", m->shopitems[i].strength);
820	}
821	else	596	else
822	sprintf (tmp, "*");	597	sprintf (tmp, "*");
823	}	598	}
		599
824	strcat (output_string, tmp);	600	strcat (output_string, tmp);
825	}	601	}
826	}	602	}
827		603
828	/* This loads the header information of the map. The header	604	/* This loads the header information of the map. The header
…		…
833	* put all the stuff in the map object so that names actually make	609	* put all the stuff in the map object so that names actually make
834	* sense.	610	* sense.
835	* This could be done in lex (like the object loader), but I think	611	* This could be done in lex (like the object loader), but I think
836	* currently, there are few enough fields this is not a big deal.	612	* currently, there are few enough fields this is not a big deal.
837	* MSW 2001-07-01	613	* MSW 2001-07-01
838	* return 0 on success, 1 on failure.
839	*/	614	*/
840		615	bool
841	static int	616	maptile::_load_header (object_thawer &thawer)
842	load_map_header (object_thawer & fp, maptile *m)
843	{	617	{
844	char buf[HUGE_BUF], msgbuf[HUGE_BUF], maplorebuf[HUGE_BUF], *key = NULL, *value, *end;	618	for (;;)
845	int msgpos = 0;
846	int maplorepos = 0;
847
848	while (fgets (buf, HUGE_BUF, fp) != NULL)
849	{	619	{
850	buf[HUGE_BUF - 1] = 0;	620	thawer.next ();
851	key = buf;
852		621
853	while (isspace (*key))	622	switch (thawer.kw)
854	key++;
855
856	if (*key == 0)
857	continue; /* empty line */
858
859	value = strchr (key, ' ');
860
861	if (!value)
862	{	623	{
863	if ((end = strchr (key, '\n')))	624	case KW_msg:
864	*end = 0;	625	thawer.get_ml (KW_endmsg, msg);
		626	break;
		627
		628	case KW_lore: // CF+ extension
		629	thawer.get_ml (KW_endlore, maplore);
		630	break;
		631
		632	case KW_maplore:
		633	thawer.get_ml (KW_endmaplore, maplore);
		634	break;
		635
		636	case KW_arch:
		637	if (strcmp (thawer.get_str (), "map"))
		638	LOG (llevError, "%s: loading map and got a non 'arch map' line (arch %s), skipping.\n", &path, thawer.get_str ());
		639	break;
		640
		641	case KW_oid:
		642	thawer.get (this, thawer.get_sint32 ());
		643	break;
		644
		645	case KW_file_format_version: break; // nop
		646
		647	case KW_name: thawer.get (name); break;
		648	case KW_attach: thawer.get (attach); break;
		649	case KW_reset_time: thawer.get (reset_time); break;
		650	case KW_shopgreed: thawer.get (shopgreed); break;
		651	case KW_shopmin: thawer.get (shopmin); break;
		652	case KW_shopmax: thawer.get (shopmax); break;
		653	case KW_shoprace: thawer.get (shoprace); break;
		654	case KW_outdoor: thawer.get (outdoor); break;
		655	case KW_temp: thawer.get (temp); break;
		656	case KW_pressure: thawer.get (pressure); break;
		657	case KW_humid: thawer.get (humid); break;
		658	case KW_windspeed: thawer.get (windspeed); break;
		659	case KW_winddir: thawer.get (winddir); break;
		660	case KW_sky: thawer.get (sky); break;
		661
		662	case KW_per_player: thawer.get (per_player); break;
		663	case KW_per_party: thawer.get (per_party); break;
		664	case KW_no_reset: thawer.get (no_reset); break;
		665
		666	case KW_region: default_region = region::find (thawer.get_str ()); break;
		667	case KW_shopitems: shopitems = parse_shop_string (thawer.get_str ()); break;
		668
		669	// old names new names
		670	case KW_hp: case KW_enter_x: thawer.get (enter_x); break;
		671	case KW_sp: case KW_enter_y: thawer.get (enter_y); break;
		672	case KW_x: case KW_width: thawer.get (width); break;
		673	case KW_y: case KW_height: thawer.get (height); break;
		674	case KW_weight: case KW_reset_timeout: thawer.get (reset_timeout); break;
		675	case KW_value: case KW_swap_time: thawer.get (timeout); break;
		676	case KW_level: case KW_difficulty: thawer.get (difficulty); difficulty = clamp (difficulty, 1, settings.max_level); break;
		677	case KW_invisible: case KW_darkness: thawer.get (darkness); break;
		678	case KW_stand_still: case KW_fixed_resettime: thawer.get (fixed_resettime); break;
		679
		680	case KW_tile_path_1: thawer.get (tile_path [0]); break;
		681	case KW_tile_path_2: thawer.get (tile_path [1]); break;
		682	case KW_tile_path_3: thawer.get (tile_path [2]); break;
		683	case KW_tile_path_4: thawer.get (tile_path [3]); break;
		684
		685	case KW_ERROR:
		686	set_key (thawer.kw_str, thawer.value);
		687	break;
		688
		689	case KW_end:
		690	return true;
		691
		692	default:
		693	if (!thawer.parse_error ("map", 0))
		694	return false;
		695	break;
865	}	696	}
866	else
867	{
868	*value = 0;
869	value++;
870	end = strchr (value, '\n');
871
872	while (isspace (*value))
873	{
874	value++;
875
876	if (*value == '\0' || value == end)
877	{
878	/* Nothing but spaces. */
879	value = NULL;
880	break;
881	}
882	}
883	}
884
885	if (!end)
886	{
887	LOG (llevError, "Error loading map header - did not find a newline - perhaps file is truncated? Buf=%s\n", buf);
888	return 1;
889	}
890
891	/* key is the field name, value is what it should be set
892	* to. We've already done the work to null terminate key,
893	* and strip off any leading spaces for both of these.
894	* We have not touched the newline at the end of the line -
895	* these are needed for some values. the end pointer
896	* points to the first of the newlines.
897	* value could be NULL! It would be easy enough to just point
898	* this to "" to prevent cores, but that would let more errors slide
899	* through.
900	*
901	* First check for entries that do not use the value parameter, then
902	* validate that value is given and check for the remaining entries
903	* that use the parameter.
904	*/
905
906	if (!strcmp (key, "msg"))
907	{
908	while (fgets (buf, HUGE_BUF, fp) != NULL)
909	{
910	if (!strcmp (buf, "endmsg\n"))
911	break;
912	else
913	{
914	/* slightly more efficient than strcat */
915	strcpy (msgbuf + msgpos, buf);
916	msgpos += strlen (buf);
917	}
918	}
919	/* There are lots of maps that have empty messages (eg, msg/endmsg
920	* with nothing between). There is no reason in those cases to
921	* keep the empty message. Also, msgbuf contains garbage data
922	* when msgpos is zero, so copying it results in crashes
923	*/
924	if (msgpos != 0)
925	m->msg = strdup (msgbuf);
926	}
927	else if (!strcmp (key, "maplore"))
928	{
929	while (fgets (buf, HUGE_BUF, fp) != NULL)
930	{
931	if (!strcmp (buf, "endmaplore\n"))
932	break;
933	else
934	{
935	/* slightly more efficient than strcat */
936	strcpy (maplorebuf + maplorepos, buf);
937	maplorepos += strlen (buf);
938	}
939	}
940	if (maplorepos != 0)
941	m->maplore = strdup (maplorebuf);
942	}
943	else if (!strcmp (key, "end"))
944	{
945	break;
946	}
947	else if (value == NULL)
948	{
949	LOG (llevError, "Got '%s' line without parameter in map header\n", key);
950	}
951	else if (!strcmp (key, "arch"))
952	{
953	/* This is an oddity, but not something we care about much. */
954	if (strcmp (value, "map\n"))
955	LOG (llevError, "loading map and got a non 'arch map' line(%s %s)?\n", key, value);
956	}
957	else if (!strcmp (key, "name"))
958	{
959	*end = 0;
960	m->name = strdup (value);
961	}
962	/* first strcmp value on these are old names supported
963	* for compatibility reasons. The new values (second) are
964	* what really should be used.
965	*/
966	else if (!strcmp (key, "oid"))
967	fp.get (m, atoi (value));
968	else if (!strcmp (key, "attach"))
969	m->attach = value;
970	else if (!strcmp (key, "hp") || !strcmp (key, "enter_x"))
971	m->enter_x = atoi (value);
972	else if (!strcmp (key, "sp") || !strcmp (key, "enter_y"))
973	m->enter_y = atoi (value);
974	else if (!strcmp (key, "x") || !strcmp (key, "width"))
975	m->width = atoi (value);
976	else if (!strcmp (key, "y") || !strcmp (key, "height"))
977	m->height = atoi (value);
978	else if (!strcmp (key, "weight") || !strcmp (key, "reset_timeout"))
979	m->reset_timeout = atoi (value);
980	else if (!strcmp (key, "value") || !strcmp (key, "swap_time"))
981	m->timeout = atoi (value);
982	else if (!strcmp (key, "level") || !strcmp (key, "difficulty"))
983	m->difficulty = clamp (atoi (value), 1, settings.max_level);
984	else if (!strcmp (key, "invisible") || !strcmp (key, "darkness"))
985	m->darkness = atoi (value);
986	else if (!strcmp (key, "stand_still") || !strcmp (key, "fixed_resettime"))
987	m->fixed_resettime = atoi (value);
988	else if (!strcmp (key, "unique"))
989	m->unique = atoi (value);
990	else if (!strcmp (key, "template"))
991	m->templatemap = atoi (value);
992	else if (!strcmp (key, "region"))
993	m->region = get_region_by_name (value);
994	else if (!strcmp (key, "shopitems"))
995	{
996	*end = 0;
997	m->shopitems = parse_shop_string (value);
998	}
999	else if (!strcmp (key, "shopgreed"))
1000	m->shopgreed = atof (value);
1001	else if (!strcmp (key, "shopmin"))
1002	m->shopmin = atol (value);
1003	else if (!strcmp (key, "shopmax"))
1004	m->shopmax = atol (value);
1005	else if (!strcmp (key, "shoprace"))
1006	{
1007	*end = 0;
1008	m->shoprace = strdup (value);
1009	}
1010	else if (!strcmp (key, "outdoor"))
1011	m->outdoor = atoi (value);
1012	else if (!strcmp (key, "temp"))
1013	m->temp = atoi (value);
1014	else if (!strcmp (key, "pressure"))
1015	m->pressure = atoi (value);
1016	else if (!strcmp (key, "humid"))
1017	m->humid = atoi (value);
1018	else if (!strcmp (key, "windspeed"))
1019	m->windspeed = atoi (value);
1020	else if (!strcmp (key, "winddir"))
1021	m->winddir = atoi (value);
1022	else if (!strcmp (key, "sky"))
1023	m->sky = atoi (value);
1024	else if (!strcmp (key, "nosmooth"))
1025	m->nosmooth = atoi (value);
1026	else if (!strncmp (key, "tile_path_", 10))
1027	{
1028	int tile = atoi (key + 10);
1029
1030	if (tile < 1 || tile > 4)
1031	{
1032	LOG (llevError, "load_map_header: tile location %d out of bounds (%s)\n", tile, m->path);
1033	}
1034	else
1035	{
1036	char *path;
1037
1038	*end = 0;
1039
1040	if (m->tile_path[tile - 1])
1041	{
1042	LOG (llevError, "load_map_header: tile location %d duplicated (%s)\n", tile, m->path);
1043	free (m->tile_path[tile - 1]);
1044	m->tile_path[tile - 1] = NULL;
1045	}
1046
1047	if (check_path (value, 1) != -1)
1048	{
1049	/* The unadorned path works. */
1050	path = value;
1051	}
1052	else
1053	{
1054	/* Try again; it could be a relative exit. */
1055
1056	path = path_combine_and_normalize (m->path, value);
1057
1058	if (check_path (path, 1) == -1)
1059	{
1060	LOG (llevError, "get_map_header: Bad tile path %s %s\n", m->path, value);
1061	path = NULL;
1062	}
1063	}
1064
1065	if (editor)
1066	{
1067	/* Use the value as in the file. */
1068	m->tile_path[tile - 1] = strdup (value);
1069	}
1070	else if (path != NULL)
1071	{
1072	/* Use the normalized value. */
1073	m->tile_path[tile - 1] = strdup (path);
1074	}
1075	} /* end if tile direction (in)valid */
1076	}
1077	else
1078	LOG (llevError, "Got unknown value in map header: %s %s\n", key, value);
1079	}
1080
1081	if (!key || strcmp (key, "end"))
1082	{	697	}
1083	LOG (llevError, "Got premature eof on map header!\n");
1084	return 1;
1085	}
1086		698
1087	return 0;	699	abort ();
1088	}	700	}
1089		701
1090	/*	702	bool
1091	* Opens the file "filename" and reads information about the map	703	maptile::_load_header (const char *path)
1092	* from the given file, and stores it in a newly allocated
1093	* maptile. A pointer to this structure is returned, or NULL on failure.
1094	* flags correspond to those in map.h. Main ones used are
1095	* MAP_PLAYER_UNIQUE, in which case we don't do any name changes, and
1096	* MAP_BLOCK, in which case we block on this load. This happens in all
1097	* cases, no matter if this flag is set or not.
1098	* MAP_STYLE: style map - don't add active objects, don't add to server
1099	* managed map list.
1100	*/
1101
1102	maptile *
1103	load_original_map (const char *filename, int flags)
1104	{	704	{
1105	maptile *m;
1106	char pathname[MAX_BUF];
1107
1108	if (flags & MAP_PLAYER_UNIQUE)
1109	strcpy (pathname, filename);
1110	else if (flags & MAP_OVERLAY)
1111	strcpy (pathname, create_overlay_pathname (filename));
1112	else
1113	strcpy (pathname, create_pathname (filename));
1114
1115	LOG (llevDebug, "load_original_map(%x): %s (%s)\n", flags, filename, pathname);
1116
1117	object_thawer thawer (pathname);	705	object_thawer thawer (path);
1118		706
1119	if (!thawer)	707	if (!thawer)
1120	return 0;	708	return false;
1121		709
1122	m = get_linked_map ();	710	return _load_header (thawer);
1123
1124	strcpy (m->path, filename);
1125	if (load_map_header (thawer, m))
1126	{
1127	LOG (llevError, "Error loading map header for %s, flags=%d\n", filename, flags);
1128	delete_map (m);
1129	return NULL;
1130	}
1131
1132	m->allocate ();
1133
1134	m->in_memory = MAP_LOADING;
1135	load_objects (m, thawer, flags & (MAP_BLOCK | MAP_STYLE));
1136
1137	m->in_memory = MAP_IN_MEMORY;
1138	if (!MAP_DIFFICULTY (m))
1139	MAP_DIFFICULTY (m) = calculate_difficulty (m);
1140	set_map_reset_time (m);
1141	m->instantiate ();
1142	return (m);
1143	}
1144
1145	/*
1146	* Loads a map, which has been loaded earlier, from file.
1147	* Return the map object we load into (this can change from the passed
1148	* option if we can't find the original map)
1149	*/
1150
1151	static maptile *
1152	load_temporary_map (maptile *m)
1153	{
1154	char buf[MAX_BUF];
1155
1156	if (!m->tmpname)
1157	{
1158	LOG (llevError, "No temporary filename for map %s\n", m->path);
1159	strcpy (buf, m->path);
1160	delete_map (m);
1161	m = load_original_map (buf, 0);
1162	if (m == NULL)
1163	return NULL;
1164	fix_auto_apply (m); /* Chests which open as default */
1165	return m;
1166	}
1167
1168	object_thawer thawer (m->tmpname);
1169
1170	if (!thawer)
1171	{
1172	strcpy (buf, m->path);
1173	delete_map (m);
1174	m = load_original_map (buf, 0);
1175	if (!m)
1176	return NULL;
1177	fix_auto_apply (m); /* Chests which open as default */
1178	return m;
1179	}
1180
1181	if (load_map_header (thawer, m))
1182	{
1183	LOG (llevError, "Error loading map header for %s (%s)\n", m->path, m->tmpname);
1184	delete_map (m);
1185	m = load_original_map (m->path, 0);
1186	return NULL;
1187	}
1188
1189	m->allocate ();
1190
1191	m->in_memory = MAP_LOADING;
1192	load_objects (m, thawer, 0);
1193
1194	m->in_memory = MAP_IN_MEMORY;
1195	INVOKE_MAP (SWAPIN, m);
1196	return m;
1197	}
1198
1199	/*
1200	* Loads a map, which has been loaded earlier, from file.
1201	* Return the map object we load into (this can change from the passed
1202	* option if we can't find the original map)
1203	*/
1204
1205	maptile *
1206	load_overlay_map (const char *filename, maptile *m)
1207	{
1208	char pathname[MAX_BUF];
1209
1210	strcpy (pathname, create_overlay_pathname (filename));
1211
1212	object_thawer thawer (pathname);
1213
1214	if (!thawer)
1215	return m;
1216
1217	if (load_map_header (thawer, m))
1218	{
1219	LOG (llevError, "Error loading map header for overlay %s (%s)\n", m->path, pathname);
1220	delete_map (m);
1221	m = load_original_map (m->path, 0);
1222	return NULL;
1223	}
1224	/*m->allocate ();*/
1225
1226	m->in_memory = MAP_LOADING;
1227	load_objects (m, thawer, MAP_OVERLAY);
1228
1229	m->in_memory = MAP_IN_MEMORY;
1230	return m;
1231	}	711	}
1232		712
1233	/******************************************************************************	713	/******************************************************************************
1234	* This is the start of unique map handling code	714	* This is the start of unique map handling code
1235	*****************************************************************************/	715	*****************************************************************************/
1236		716
1237	/* This goes through map 'm' and removed any unique items on the map. */	717	/* This goes through the maptile and removed any unique items on the map. */
1238	static void	718	void
1239	delete_unique_items (maptile *m)	719	maptile::clear_unique_items ()
1240	{	720	{
1241	int i, j, unique;	721	for (int i = 0; i < size (); ++i)
1242	object *op, *next;	722	{
		723	int unique = 0;
		724	for (object *op = spaces [i].bot; op; )
		725	{
		726	object *above = op->above;
1243		727
1244	for (i = 0; i < MAP_WIDTH (m); i++)	728	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))
1245	for (j = 0; j < MAP_HEIGHT (m); j++)	729	unique = 1;
		730
		731	if (op->head_ () == op && (QUERY_FLAG (op, FLAG_UNIQUE) || unique))
		732	{
		733	op->destroy_inv (false);
		734	op->destroy ();
		735	}
		736
		737	op = above;
		738	}
		739	}
		740	}
		741
		742	bool
		743	maptile::_save_header (object_freezer &freezer)
		744	{
		745	#define MAP_OUT(k) freezer.put (KW_ ## k, k)
		746	#define MAP_OUT2(k,v) freezer.put (KW_ ## k, v)
		747
		748	MAP_OUT2 (arch, "map");
		749
		750	if (name) MAP_OUT (name);
		751	MAP_OUT (swap_time);
		752	MAP_OUT (reset_time);
		753	MAP_OUT (reset_timeout);
		754	MAP_OUT (fixed_resettime);
		755	MAP_OUT (no_reset);
		756	MAP_OUT (difficulty);
		757
		758	if (default_region) MAP_OUT2 (region, default_region->name);
		759
		760	if (shopitems)
		761	{
		762	char shop[MAX_BUF];
		763	print_shop_string (this, shop);
		764	MAP_OUT2 (shopitems, shop);
		765	}
		766
		767	MAP_OUT (shopgreed);
		768	MAP_OUT (shopmin);
		769	MAP_OUT (shopmax);
		770	if (shoprace) MAP_OUT (shoprace);
		771	MAP_OUT (darkness);
		772	MAP_OUT (width);
		773	MAP_OUT (height);
		774	MAP_OUT (enter_x);
		775	MAP_OUT (enter_y);
		776
		777	if (msg) freezer.put (KW_msg , KW_endmsg , msg);
		778	if (maplore) freezer.put (KW_maplore, KW_endmaplore, maplore);
		779
		780	MAP_OUT (outdoor);
		781	MAP_OUT (temp);
		782	MAP_OUT (pressure);
		783	MAP_OUT (humid);
		784	MAP_OUT (windspeed);
		785	MAP_OUT (winddir);
		786	MAP_OUT (sky);
		787
		788	MAP_OUT (per_player);
		789	MAP_OUT (per_party);
		790
		791	if (tile_path [0]) MAP_OUT2 (tile_path_1, tile_path [0]);
		792	if (tile_path [1]) MAP_OUT2 (tile_path_2, tile_path [1]);
		793	if (tile_path [2]) MAP_OUT2 (tile_path_3, tile_path [2]);
		794	if (tile_path [3]) MAP_OUT2 (tile_path_4, tile_path [3]);
		795
		796	freezer.put (this);
		797	freezer.put (KW_end);
		798
		799	return true;
		800	}
		801
		802	bool
		803	maptile::_save_header (const char *path)
		804	{
		805	object_freezer freezer;
		806
		807	if (!_save_header (freezer))
		808	return false;
		809
		810	return freezer.save (path);
		811	}
		812
		813	/*
		814	* Remove and free all objects in the given map.
		815	*/
		816	void
		817	maptile::clear ()
		818	{
		819	sfree (regions, size ()); regions = 0;
		820	delete [] regionmap; regionmap = 0;
		821
		822	if (spaces)
		823	{
		824	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		825	while (object *op = ms->bot)
		826	{
		827	op = op->head_ ();
		828	op->destroy_inv (false);
		829	op->destroy ();
		830	}
		831
		832	sfree (spaces, size ()), spaces = 0;
		833	}
		834
		835	if (buttons)
		836	free_objectlinkpt (buttons), buttons = 0;
		837	}
		838
		839	void
		840	maptile::clear_header ()
		841	{
		842	name = 0;
		843	msg = 0;
		844	maplore = 0;
		845	shoprace = 0;
		846	delete [] shopitems, shopitems = 0;
		847
		848	for (int i = 0; i < 4; i++)
		849	tile_path [i] = 0;
		850	}
		851
		852	maptile::~maptile ()
		853	{
		854	assert (destroyed ());
		855	}
		856
		857	void
		858	maptile::clear_links_to (maptile *m)
		859	{
		860	/* We need to look through all the maps and see if any maps
		861	* are pointing at this one for tiling information. Since
		862	* tiling can be asymetric, we just can not look to see which
		863	* maps this map tiles with and clears those.
		864	*/
		865	for (int i = 0; i < 4; i++)
		866	if (tile_map[i] == m)
		867	tile_map[i] = 0;
		868	}
		869
		870	void
		871	maptile::do_destroy ()
		872	{
		873	attachable::do_destroy ();
		874
		875	clear ();
		876	}
		877
		878	/* decay and destroy perishable items in a map */
		879	void
		880	maptile::do_decay_objects ()
		881	{
		882	if (!spaces)
		883	return;
		884
		885	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		886	for (object *above, *op = ms->bot; op; op = above)
1246	{	887	{
1247	unique = 0;	888	above = op->above;
1248		889
1249	for (op = GET_MAP_OB (m, i, j); op; op = next)	890	bool destroy = 0;
		891
		892	// do not decay anything above unique floor tiles (yet :)
		893	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))
		894	break;
		895
		896	if (QUERY_FLAG (op, FLAG_IS_FLOOR)
		897	|| QUERY_FLAG (op, FLAG_OBJ_ORIGINAL)
		898	|| QUERY_FLAG (op, FLAG_OBJ_SAVE_ON_OVL)
		899	|| QUERY_FLAG (op, FLAG_UNIQUE)
		900	|| QUERY_FLAG (op, FLAG_OVERLAY_FLOOR)
		901	|| QUERY_FLAG (op, FLAG_UNPAID)
		902	|| op->is_alive ())
		903	; // do not decay
		904	else if (op->is_weapon ())
1250	{	905	{
1251	next = op->above;	906	op->stats.dam--;
1252		907	if (op->stats.dam < 0)
1253	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))
1254	unique = 1;	908	destroy = 1;
1255		909	}
1256	if (op->head == NULL && (QUERY_FLAG (op, FLAG_UNIQUE) || unique))	910	else if (op->is_armor ())
1257	{	911	{
1258	clean_object (op);	912	op->stats.ac--;
		913	if (op->stats.ac < 0)
		914	destroy = 1;
		915	}
		916	else if (op->type == FOOD)
		917	{
		918	op->stats.food -= rndm (5, 20);
		919	if (op->stats.food < 0)
		920	destroy = 1;
		921	}
		922	else
		923	{
		924	int mat = op->materials;
1259		925
1260	if (QUERY_FLAG (op, FLAG_IS_LINKED))	926	if (mat & M_PAPER
1261	remove_button_link (op);	927	|| mat & M_LEATHER
		928	|| mat & M_WOOD
		929	|| mat & M_ORGANIC
		930	|| mat & M_CLOTH
		931	|| mat & M_LIQUID
		932	|| (mat & M_IRON && rndm (1, 5) == 1)
		933	|| (mat & M_GLASS && rndm (1, 2) == 1)
		934	|| ((mat & M_STONE || mat & M_ADAMANT) && rndm (1, 10) == 1)
		935	|| ((mat & M_SOFT_METAL || mat & M_BONE) && rndm (1, 3) == 1)
		936	|| (mat & M_ICE && temp > 32))
		937	destroy = 1;
		938	}
1262		939
		940	/* adjust overall chance below */
		941	if (destroy && rndm (0, 1))
1263	op->destroy ();	942	op->destroy ();
		943	}
		944	}
		945
		946	/*
		947	* Updates every button on the map (by calling update_button() for them).
		948	*/
		949	void
		950	maptile::update_buttons ()
		951	{
		952	for (oblinkpt *obp = buttons; obp; obp = obp->next)
		953	for (objectlink *ol = obp->link; ol; ol = ol->next)
		954	{
		955	if (!ol->ob)
		956	{
		957	LOG (llevError, "Internal error in update_button (%s (%dx%d), connected %ld).\n",
		958	ol->ob ? (const char *) ol->ob->name : "null", ol->ob ? ol->ob->x : -1, ol->ob ? ol->ob->y : -1, obp->value);
		959	continue;
1264	}	960	}
		961
		962	if (ol->ob->type == BUTTON || ol->ob->type == PEDESTAL)
		963	{
		964	update_button (ol->ob);
		965	break;
1265	}	966	}
1266	}	967	}
1267	}	968	}
1268
1269
1270	/*
1271	* Loads unique objects from file(s) into the map which is in memory
1272	* m is the map to load unique items into.
1273	*/
1274	static void
1275	load_unique_objects (maptile *m)
1276	{
1277	int count;
1278	char firstname[MAX_BUF];
1279
1280	for (count = 0; count < 10; count++)
1281	{
1282	sprintf (firstname, "%s.v%02d", create_items_path (m->path), count);
1283	if (!access (firstname, R_OK))
1284	break;
1285	}
1286	/* If we get here, we did not find any map */
1287	if (count == 10)
1288	return;
1289
1290	object_thawer thawer (firstname);
1291
1292	if (!thawer)
1293	return;
1294
1295	m->in_memory = MAP_LOADING;
1296	if (m->tmpname == NULL) /* if we have loaded unique items from */
1297	delete_unique_items (m); /* original map before, don't duplicate them */
1298	load_objects (m, thawer, 0);
1299
1300	m->in_memory = MAP_IN_MEMORY;
1301	}
1302
1303
1304	/*
1305	* Saves a map to file. If flag is set, it is saved into the same
1306	* file it was (originally) loaded from. Otherwise a temporary
1307	* filename will be genarated, and the file will be stored there.
1308	* The temporary filename will be stored in the maptileure.
1309	* If the map is unique, we also save to the filename in the map
1310	* (this should have been updated when first loaded)
1311	*/
1312
1313	int
1314	new_save_map (maptile *m, int flag)
1315	{
1316	char filename[MAX_BUF], buf[MAX_BUF], shop[MAX_BUF];
1317	int i;
1318
1319	if (flag && !*m->path)
1320	{
1321	LOG (llevError, "Tried to save map without path.\n");
1322	return -1;
1323	}
1324
1325	if (flag || (m->unique) || (m->templatemap))
1326	{
1327	if (!m->unique && !m->templatemap)
1328	{ /* flag is set */
1329	if (flag == 2)
1330	strcpy (filename, create_overlay_pathname (m->path));
1331	else
1332	strcpy (filename, create_pathname (m->path));
1333	}
1334	else
1335	strcpy (filename, m->path);
1336
1337	make_path_to_file (filename);
1338	}
1339	else
1340	{
1341	if (!m->tmpname)
1342	m->tmpname = tempnam (settings.tmpdir, NULL);
1343
1344	strcpy (filename, m->tmpname);
1345	}
1346
1347	LOG (llevDebug, "Saving map %s to %s\n", m->path, filename);
1348	m->in_memory = MAP_SAVING;
1349
1350	object_freezer freezer;
1351
1352	/* legacy */
1353	fprintf (freezer, "arch map\n");
1354	if (m->name)
1355	fprintf (freezer, "name %s\n", m->name);
1356	if (!flag)
1357	fprintf (freezer, "swap_time %d\n", m->swap_time);
1358	if (m->reset_timeout)
1359	fprintf (freezer, "reset_timeout %d\n", m->reset_timeout);
1360	if (m->fixed_resettime)
1361	fprintf (freezer, "fixed_resettime %d\n", m->fixed_resettime);
1362	/* we unfortunately have no idea if this is a value the creator set
1363	* or a difficulty value we generated when the map was first loaded
1364	*/
1365	if (m->difficulty)
1366	fprintf (freezer, "difficulty %d\n", m->difficulty);
1367	if (m->region)
1368	fprintf (freezer, "region %s\n", m->region->name);
1369	if (m->shopitems)
1370	{
1371	print_shop_string (m, shop);
1372	fprintf (freezer, "shopitems %s\n", shop);
1373	}
1374	if (m->shopgreed)
1375	fprintf (freezer, "shopgreed %f\n", m->shopgreed);
1376	if (m->shopmin)
1377	fprintf (freezer, "shopmin %llu\n", m->shopmin);
1378	if (m->shopmax)
1379	fprintf (freezer, "shopmax %llu\n", m->shopmax);
1380	if (m->shoprace)
1381	fprintf (freezer, "shoprace %s\n", m->shoprace);
1382	if (m->darkness)
1383	fprintf (freezer, "darkness %d\n", m->darkness);
1384	if (m->width)
1385	fprintf (freezer, "width %d\n", m->width);
1386	if (m->height)
1387	fprintf (freezer, "height %d\n", m->height);
1388	if (m->enter_x)
1389	fprintf (freezer, "enter_x %d\n", m->enter_x);
1390	if (m->enter_y)
1391	fprintf (freezer, "enter_y %d\n", m->enter_y);
1392	if (m->msg)
1393	fprintf (freezer, "msg\n%sendmsg\n", m->msg);
1394	if (m->maplore)
1395	fprintf (freezer, "maplore\n%sendmaplore\n", m->maplore);
1396	if (m->unique)
1397	fprintf (freezer, "unique %d\n", m->unique);
1398	if (m->templatemap)
1399	fprintf (freezer, "template %d\n", m->templatemap);
1400	if (m->outdoor)
1401	fprintf (freezer, "outdoor %d\n", m->outdoor);
1402	if (m->temp)
1403	fprintf (freezer, "temp %d\n", m->temp);
1404	if (m->pressure)
1405	fprintf (freezer, "pressure %d\n", m->pressure);
1406	if (m->humid)
1407	fprintf (freezer, "humid %d\n", m->humid);
1408	if (m->windspeed)
1409	fprintf (freezer, "windspeed %d\n", m->windspeed);
1410	if (m->winddir)
1411	fprintf (freezer, "winddir %d\n", m->winddir);
1412	if (m->sky)
1413	fprintf (freezer, "sky %d\n", m->sky);
1414	if (m->nosmooth)
1415	fprintf (freezer, "nosmooth %d\n", m->nosmooth);
1416
1417	/* Save any tiling information, except on overlays */
1418	if (flag != 2)
1419	for (i = 0; i < 4; i++)
1420	if (m->tile_path[i])
1421	fprintf (freezer, "tile_path_%d %s\n", i + 1, m->tile_path[i]);
1422
1423	freezer.put (m);
1424	fprintf (freezer, "end\n");
1425
1426	/* In the game save unique items in the different file, but
1427	* in the editor save them to the normal map file.
1428	* If unique map, save files in the proper destination (set by
1429	* player)
1430	*/
1431	if ((flag == 0 || flag == 2) && !m->unique && !m->templatemap)
1432	{
1433	object_freezer unique;
1434
1435	if (flag == 2)
1436	save_objects (m, freezer, unique, 2);
1437	else
1438	save_objects (m, freezer, unique, 0);
1439
1440	sprintf (buf, "%s.v00", create_items_path (m->path));
1441
1442	unique.save (buf);
1443	}
1444	else
1445	{ /* save same file when not playing, like in editor */
1446	save_objects (m, freezer, freezer, 0);
1447	}
1448
1449	freezer.save (filename);
1450
1451	return 0;
1452	}
1453
1454
1455	/*
1456	* Remove and free all objects in the inventory of the given object.
1457	* object.c ?
1458	*/
1459
1460	void
1461	clean_object (object *op)
1462	{
1463	object *tmp, *next;
1464
1465	for (tmp = op->inv; tmp; tmp = next)
1466	{
1467	next = tmp->below;
1468
1469	clean_object (tmp);
1470	if (QUERY_FLAG (tmp, FLAG_IS_LINKED))
1471	remove_button_link (tmp);
1472
1473	tmp->destroy ();
1474	}
1475	}
1476
1477	/*
1478	* Remove and free all objects in the given map.
1479	*/
1480
1481	void
1482	free_all_objects (maptile *m)
1483	{
1484	int i, j;
1485	object *op;
1486
1487	for (i = 0; i < MAP_WIDTH (m); i++)
1488	for (j = 0; j < MAP_HEIGHT (m); j++)
1489	{
1490	object *previous_obj = NULL;
1491
1492	while ((op = GET_MAP_OB (m, i, j)) != NULL)
1493	{
1494	if (op == previous_obj)
1495	{
1496	LOG (llevDebug, "free_all_objects: Link error, bailing out.\n");
1497	break;
1498	}
1499
1500	previous_obj = op;
1501
1502	if (op->head != NULL)
1503	op = op->head;
1504
1505	/* If the map isn't in memory, free_object will remove and
1506	* free objects in op's inventory. So let it do the job.
1507	*/
1508	if (m->in_memory == MAP_IN_MEMORY)
1509	clean_object (op);
1510
1511	op->destroy ();
1512	}
1513	}
1514	}
1515
1516	/*
1517	* Frees everything allocated by the given maptileure.
1518	* don't free tmpname - our caller is left to do that
1519	*/
1520
1521	void
1522	free_map (maptile *m, int flag)
1523	{
1524	int i;
1525
1526	if (!m->in_memory)
1527	{
1528	LOG (llevError, "Trying to free freed map.\n");
1529	return;
1530	}
1531
1532	// TODO: use new/delete
1533	#define FREE_AND_CLEAR(p) { free (p); p = NULL; }
1534
1535	if (flag && m->spaces)
1536	free_all_objects (m);
1537	if (m->name)
1538	FREE_AND_CLEAR (m->name);
1539	if (m->spaces)
1540	FREE_AND_CLEAR (m->spaces);
1541	if (m->msg)
1542	FREE_AND_CLEAR (m->msg);
1543	if (m->maplore)
1544	FREE_AND_CLEAR (m->maplore);
1545
1546	delete [] m->shopitems;
1547	m->shopitems = 0;
1548
1549	if (m->shoprace)
1550	FREE_AND_CLEAR (m->shoprace);
1551
1552	if (m->buttons)
1553	free_objectlinkpt (m->buttons);
1554
1555	m->buttons = NULL;
1556
1557	for (i = 0; i < 4; i++)
1558	{
1559	if (m->tile_path[i])
1560	FREE_AND_CLEAR (m->tile_path[i]);
1561	m->tile_map[i] = NULL;
1562	}
1563
1564	m->in_memory = MAP_SWAPPED;
1565
1566	#undef FREE_AND_CLEAR
1567
1568	}
1569
1570	/*
1571	* function: vanish maptile
1572	* m : pointer to maptile, if NULL no action
1573	* this deletes all the data on the map (freeing pointers)
1574	* and then removes this map from the global linked list of maps.
1575	*/
1576
1577	void
1578	delete_map (maptile *m)
1579	{
1580	maptile *tmp, *last;
1581	int i;
1582
1583	if (!m)
1584	return;
1585
1586	m->clear ();
1587
1588	if (m->in_memory == MAP_IN_MEMORY)
1589	{
1590	/* change to MAP_SAVING, even though we are not,
1591	* so that remove_ob doesn't do as much work.
1592	*/
1593	m->in_memory = MAP_SAVING;
1594	free_map (m, 1);
1595	}
1596	/* move this out of free_map, since tmpname can still be needed if
1597	* the map is swapped out.
1598	*/
1599	if (m->tmpname)
1600	{
1601	free (m->tmpname);
1602	m->tmpname = NULL;
1603	}
1604	last = NULL;
1605	/* We need to look through all the maps and see if any maps
1606	* are pointing at this one for tiling information. Since
1607	* tiling can be assymetric, we just can not look to see which
1608	* maps this map tiles with and clears those.
1609	*/
1610	for (tmp = first_map; tmp != NULL; tmp = tmp->next)
1611	{
1612	if (tmp->next == m)
1613	last = tmp;
1614
1615	/* This should hopefully get unrolled on a decent compiler */
1616	for (i = 0; i < 4; i++)
1617	if (tmp->tile_map[i] == m)
1618	tmp->tile_map[i] = NULL;
1619	}
1620
1621	/* If last is null, then this should be the first map in the list */
1622	if (!last)
1623	{
1624	if (m == first_map)
1625	first_map = m->next;
1626	else
1627	/* m->path is a static char, so should hopefully still have
1628	* some useful data in it.
1629	*/
1630	LOG (llevError, "delete_map: Unable to find map %s in list\n", m->path);
1631	}
1632	else
1633	last->next = m->next;
1634
1635	delete m;
1636	}
1637
1638	/*
1639	* Makes sure the given map is loaded and swapped in.
1640	* name is path name of the map.
1641	* flags meaning:
1642	* 0x1 (MAP_FLUSH): flush the map - always load from the map directory,
1643	* and don't do unique items or the like.
1644	* 0x2 (MAP_PLAYER_UNIQUE) - this is a unique map for each player.
1645	* dont do any more name translation on it.
1646	*
1647	* Returns a pointer to the given map.
1648	*/
1649	maptile *
1650	ready_map_name (const char *name, int flags)
1651	{
1652	maptile *m;
1653
1654	if (!name)
1655	return (NULL);
1656
1657	/* Have we been at this level before? */
1658	m = has_been_loaded (name);
1659
1660	/* Map is good to go, so just return it */
1661	if (m && (m->in_memory == MAP_LOADING || m->in_memory == MAP_IN_MEMORY))
1662	{
1663	return m;
1664	}
1665
1666	/* unique maps always get loaded from their original location, and never
1667	* a temp location. Likewise, if map_flush is set, or we have never loaded
1668	* this map, load it now. I removed the reset checking from here -
1669	* it seems the probability of a player trying to enter a map that should
1670	* reset but hasn't yet is quite low, and removing that makes this function
1671	* a bit cleaner (and players probably shouldn't rely on exact timing for
1672	* resets in any case - if they really care, they should use the 'maps command.
1673	*/
1674	if ((flags & (MAP_FLUSH | MAP_PLAYER_UNIQUE)) || !m)
1675	{
1676
1677	/* first visit or time to reset */
1678	if (m)
1679	{
1680	clean_tmp_map (m); /* Doesn't make much difference */
1681	delete_map (m);
1682	}
1683
1684	/* create and load a map */
1685	if (flags & MAP_PLAYER_UNIQUE)
1686	LOG (llevDebug, "Trying to load map %s.\n", name);
1687	else
1688	LOG (llevDebug, "Trying to load map %s.\n", create_pathname (name));
1689
1690	//eval_pv ("$x = Event::time", 1);//D
1691	if (!(m = load_original_map (name, (flags & MAP_PLAYER_UNIQUE))))
1692	return (NULL);
1693	//eval_pv ("warn \"LOAD \", Event::time - $x", 1);//D
1694
1695	fix_auto_apply (m); /* Chests which open as default */
1696
1697	/* If a player unique map, no extra unique object file to load.
1698	* if from the editor, likewise.
1699	*/
1700	if (!(flags & (MAP_FLUSH | MAP_PLAYER_UNIQUE)))
1701	load_unique_objects (m);
1702
1703	if (!(flags & (MAP_FLUSH | MAP_PLAYER_UNIQUE | MAP_OVERLAY)))
1704	{
1705	m = load_overlay_map (name, m);
1706	if (m == NULL)
1707	return NULL;
1708	}
1709
1710	if (flags & MAP_PLAYER_UNIQUE)
1711	INVOKE_MAP (SWAPIN, m);
1712
1713	}
1714	else
1715	{
1716	/* If in this loop, we found a temporary map, so load it up. */
1717
1718	m = load_temporary_map (m);
1719	if (m == NULL)
1720	return NULL;
1721	load_unique_objects (m);
1722
1723	clean_tmp_map (m);
1724	m->in_memory = MAP_IN_MEMORY;
1725	/* tempnam() on sun systems (probably others) uses malloc
1726	* to allocated space for the string. Free it here.
1727	* In some cases, load_temporary_map above won't find the
1728	* temporary map, and so has reloaded a new map. If that
1729	* is the case, tmpname is now null
1730	*/
1731	if (m->tmpname)
1732	free (m->tmpname);
1733	m->tmpname = NULL;
1734	/* It's going to be saved anew anyway */
1735	}
1736
1737	/* Below here is stuff common to both first time loaded maps and
1738	* temp maps.
1739	*/
1740
1741	decay_objects (m); /* start the decay */
1742	/* In case other objects press some buttons down */
1743	update_buttons (m);
1744	if (m->outdoor)
1745	set_darkness_map (m);
1746	/* run the weather over this map */
1747	weather_effect (name);
1748	return m;
1749	}
1750
1751		969
1752	/*	970	/*
1753	* This routine is supposed to find out the difficulty of the map.	971	* This routine is supposed to find out the difficulty of the map.
1754	* difficulty does not have a lot to do with character level,	972	* difficulty does not have a lot to do with character level,
1755	* but does have a lot to do with treasure on the map.	973	* but does have a lot to do with treasure on the map.
…		…
1757	* Difficulty can now be set by the map creature. If the value stored	975	* Difficulty can now be set by the map creature. If the value stored
1758	* in the map is zero, then use this routine. Maps should really	976	* in the map is zero, then use this routine. Maps should really
1759	* have a difficulty set than using this function - human calculation	977	* have a difficulty set than using this function - human calculation
1760	* is much better than this functions guesswork.	978	* is much better than this functions guesswork.
1761	*/	979	*/
1762
1763	int	980	int
1764	calculate_difficulty (maptile *m)	981	maptile::estimate_difficulty () const
1765	{	982	{
1766	object *op;
1767	archetype *at;
1768	int x, y, i;
1769	long monster_cnt = 0;	983	long monster_cnt = 0;
1770	double avgexp = 0;	984	double avgexp = 0;
1771	sint64 total_exp = 0;	985	sint64 total_exp = 0;
1772		986
1773	if (MAP_DIFFICULTY (m))	987	for (mapspace *ms = spaces + size (); ms-- > spaces; )
1774	{	988	for (object *op = ms->bot; op; op = op->above)
1775	LOG (llevDebug, "Using stored map difficulty: %d\n", MAP_DIFFICULTY (m));
1776	return MAP_DIFFICULTY (m);
1777	}
1778
1779	for (x = 0; x < MAP_WIDTH (m); x++)
1780	for (y = 0; y < MAP_HEIGHT (m); y++)
1781	for (op = GET_MAP_OB (m, x, y); op != NULL; op = op->above)
1782	{	989	{
1783	if (QUERY_FLAG (op, FLAG_MONSTER))	990	if (QUERY_FLAG (op, FLAG_MONSTER))
1784	{	991	{
1785	total_exp += op->stats.exp;	992	total_exp += op->stats.exp;
1786	monster_cnt++;	993	monster_cnt++;
1787	}	994	}
1788		995
1789	if (QUERY_FLAG (op, FLAG_GENERATOR))	996	if (QUERY_FLAG (op, FLAG_GENERATOR))
1790	{	997	{
1791	total_exp += op->stats.exp;	998	total_exp += op->stats.exp;
		999
1792	at = type_to_archetype (GENERATE_TYPE (op));	1000	if (archetype *at = type_to_archetype (GENERATE_TYPE (op)))
1793
1794	if (at != NULL)
1795	total_exp += at->clone.stats.exp * 8;	1001	total_exp += at->stats.exp * 8;
1796		1002
1797	monster_cnt++;	1003	monster_cnt++;
1798	}	1004	}
1799	}	1005	}
1800		1006
1801	avgexp = (double) total_exp / monster_cnt;	1007	avgexp = (double) total_exp / monster_cnt;
1802		1008
1803	for (i = 1; i <= settings.max_level; i++)	1009	for (int i = 1; i <= settings.max_level; i++)
1804	{
1805	if ((level_exp (i, 1) - level_exp (i - 1, 1)) > (100 * avgexp))	1010	if ((level_exp (i, 1) - level_exp (i - 1, 1)) > (100 * avgexp))
1806	{
1807	/* LOG(llevDebug, "Calculated difficulty for map: %s: %d\n", m->name, i); */
1808	return i;	1011	return i;
1809	}
1810	}
1811		1012
1812	return 1;	1013	return 1;
1813	}
1814
1815	void
1816	clean_tmp_map (maptile *m)
1817	{
1818	if (m->tmpname == NULL)
1819	return;
1820	INVOKE_MAP (CLEAN, m);
1821	(void) unlink (m->tmpname);
1822	}
1823
1824	void
1825	free_all_maps (void)
1826	{
1827	int real_maps = 0;
1828
1829	while (first_map)
1830	{
1831	/* I think some of the callers above before it gets here set this to be
1832	* saving, but we still want to free this data
1833	*/
1834	if (first_map->in_memory == MAP_SAVING)
1835	first_map->in_memory = MAP_IN_MEMORY;
1836	delete_map (first_map);
1837	real_maps++;
1838	}
1839	LOG (llevDebug, "free_all_maps: Freed %d maps\n", real_maps);
1840	}	1014	}
1841		1015
1842	/* change_map_light() - used to change map light level (darkness)	1016	/* change_map_light() - used to change map light level (darkness)
1843	* up or down. Returns true if successful. It should now be	1017	* up or down. Returns true if successful. It should now be
1844	* possible to change a value by more than 1.	1018	* possible to change a value by more than 1.
1845	* Move this from los.c to map.c since this is more related	1019	* Move this from los.c to map.c since this is more related
1846	* to maps than los.	1020	* to maps than los.
1847	* postive values make it darker, negative make it brighter	1021	* postive values make it darker, negative make it brighter
1848	*/	1022	*/
1849
1850	int	1023	int
1851	change_map_light (maptile *m, int change)	1024	maptile::change_map_light (int change)
1852	{	1025	{
1853	int new_level = m->darkness + change;	1026	int new_level = darkness + change;
1854		1027
1855	/* Nothing to do */	1028	/* Nothing to do */
1856	if (!change || (new_level <= 0 && m->darkness == 0) || (new_level >= MAX_DARKNESS && m->darkness >= MAX_DARKNESS))	1029	if (!change || (new_level <= 0 && darkness == 0) || (new_level >= MAX_DARKNESS && darkness >= MAX_DARKNESS))
1857	{
1858	return 0;	1030	return 0;
1859	}
1860		1031
1861	/* inform all players on the map */	1032	/* inform all players on the map */
1862	if (change > 0)	1033	if (change > 0)
1863	new_info_map (NDI_BLACK | NDI_UNIQUE, m, "It becomes darker.");	1034	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes darker.");
1864	else	1035	else
1865	new_info_map (NDI_BLACK | NDI_UNIQUE, m, "It becomes brighter.");	1036	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes brighter.");
1866		1037
1867	/* Do extra checking. since m->darkness is a unsigned value,	1038	/* Do extra checking. since darkness is a unsigned value,
1868	* we need to be extra careful about negative values.	1039	* we need to be extra careful about negative values.
1869	* In general, the checks below are only needed if change	1040	* In general, the checks below are only needed if change
1870	* is not +/-1	1041	* is not +/-1
1871	*/	1042	*/
1872	if (new_level < 0)	1043	if (new_level < 0)
1873	m->darkness = 0;	1044	darkness = 0;
1874	else if (new_level >= MAX_DARKNESS)	1045	else if (new_level >= MAX_DARKNESS)
1875	m->darkness = MAX_DARKNESS;	1046	darkness = MAX_DARKNESS;
1876	else	1047	else
1877	m->darkness = new_level;	1048	darkness = new_level;
1878		1049
1879	/* All clients need to get re-updated for the change */	1050	/* All clients need to get re-updated for the change */
1880	update_all_map_los (m);	1051	update_all_map_los (this);
1881	return 1;	1052	return 1;
1882	}	1053	}
1883		1054
1884	/*	1055	/*
1885	* This function updates various attributes about a specific space	1056	* This function updates various attributes about a specific space
1886	* on the map (what it looks like, whether it blocks magic,	1057	* on the map (what it looks like, whether it blocks magic,
1887	* has a living creatures, prevents people from passing	1058	* has a living creatures, prevents people from passing
1888	* through, etc)	1059	* through, etc)
1889	*/	1060	*/
1890	void	1061	void
1891	update_position (maptile *m, int x, int y)	1062	mapspace::update_ ()
1892	{	1063	{
1893	object *tmp, *last = 0;	1064	object *tmp, *last = 0;
1894	uint8 flags = 0, oldflags, light = 0, anywhere = 0;	1065	uint8 flags = P_UPTODATE, light = 0, anywhere = 0;
1895	New_Face *top, *floor, *middle;
1896	object *top_obj, *floor_obj, *middle_obj;
1897	MoveType move_block = 0, move_slow = 0, move_on = 0, move_off = 0, move_allow = 0;	1066	MoveType move_block = 0, move_slow = 0, move_on = 0, move_off = 0, move_allow = 0;
1898		1067
1899	oldflags = GET_MAP_FLAGS (m, x, y);	1068	//object *middle = 0;
1900	if (!(oldflags & P_NEED_UPDATE))	1069	//object *top = 0;
1901	{	1070	//object *floor = 0;
1902	LOG (llevDebug, "update_position called with P_NEED_UPDATE not set: %s (%d, %d)\n", m->path, x, y);	1071	// this seems to generate better code than using locals, above
1903	return;	1072	object *&top = faces_obj[0] = 0;
1904	}	1073	object *&middle = faces_obj[1] = 0;
		1074	object *&floor = faces_obj[2] = 0;
1905		1075
1906	middle = blank_face;
1907	top = blank_face;
1908	floor = blank_face;
1909
1910	middle_obj = 0;
1911	top_obj = 0;
1912	floor_obj = 0;
1913
1914	for (tmp = GET_MAP_OB (m, x, y); tmp; last = tmp, tmp = tmp->above)	1076	for (tmp = bot; tmp; last = tmp, tmp = tmp->above)
1915	{	1077	{
1916	/* This could be made additive I guess (two lights better than	1078	/* This could be made additive I guess (two lights better than
1917	* one). But if so, it shouldn't be a simple additive - 2	1079	* one). But if so, it shouldn't be a simple additive - 2
1918	* light bulbs do not illuminate twice as far as once since	1080	* light bulbs do not illuminate twice as far as once since
1919	* it is a dissapation factor that is cubed.	1081	* it is a dissapation factor that is cubed.
…		…
1930	* Always put the player down for drawing.	1092	* Always put the player down for drawing.
1931	*/	1093	*/
1932	if (!tmp->invisible)	1094	if (!tmp->invisible)
1933	{	1095	{
1934	if ((tmp->type == PLAYER || QUERY_FLAG (tmp, FLAG_MONSTER)))	1096	if ((tmp->type == PLAYER || QUERY_FLAG (tmp, FLAG_MONSTER)))
1935	{
1936	top = tmp->face;
1937	top_obj = tmp;	1097	top = tmp;
1938	}
1939	else if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))	1098	else if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))
1940	{	1099	{
1941	/* If we got a floor, that means middle and top were below it,	1100	/* If we got a floor, that means middle and top were below it,
1942	* so should not be visible, so we clear them.	1101	* so should not be visible, so we clear them.
1943	*/	1102	*/
1944	middle = blank_face;	1103	middle = 0;
1945	top = blank_face;	1104	top = 0;
1946	floor = tmp->face;
1947	floor_obj = tmp;	1105	floor = tmp;
1948	}	1106	}
1949	/* Flag anywhere have high priority */	1107	/* Flag anywhere have high priority */
1950	else if (QUERY_FLAG (tmp, FLAG_SEE_ANYWHERE))	1108	else if (QUERY_FLAG (tmp, FLAG_SEE_ANYWHERE))
1951	{	1109	{
1952	middle = tmp->face;
1953
1954	middle_obj = tmp;	1110	middle = tmp;
1955	anywhere = 1;	1111	anywhere = 1;
1956	}	1112	}
1957	/* Find the highest visible face around. If equal	1113	/* Find the highest visible face around. If equal
1958	* visibilities, we still want the one nearer to the	1114	* visibilities, we still want the one nearer to the
1959	* top	1115	* top
1960	*/	1116	*/
1961	else if (middle == blank_face || (tmp->face->visibility > middle->visibility && !anywhere))	1117	else if (!middle || (::faces [tmp->face].visibility > ::faces [middle->face].visibility && !anywhere))
1962	{
1963	middle = tmp->face;
1964	middle_obj = tmp;	1118	middle = tmp;
1965	}
1966	}	1119	}
1967		1120
1968	if (tmp == tmp->above)	1121	if (tmp == tmp->above)
1969	{	1122	{
1970	LOG (llevError, "Error in structure of map\n");	1123	LOG (llevError, "Error in structure of map\n");
…		…
1983	if (tmp->type == SAFE_GROUND) flags |= P_SAFE;	1136	if (tmp->type == SAFE_GROUND) flags |= P_SAFE;
1984	if (QUERY_FLAG (tmp, FLAG_ALIVE)) flags |= P_IS_ALIVE;	1137	if (QUERY_FLAG (tmp, FLAG_ALIVE)) flags |= P_IS_ALIVE;
1985	if (QUERY_FLAG (tmp, FLAG_DAMNED)) flags |= P_NO_CLERIC;	1138	if (QUERY_FLAG (tmp, FLAG_DAMNED)) flags |= P_NO_CLERIC;
1986	}	1139	}
1987		1140
1988	/* we don't want to rely on this function to have accurate flags, but	1141	this->light = light;
1989	* since we're already doing the work, we calculate them here.
1990	* if they don't match, logic is broken someplace.
1991	*/
1992	if (((oldflags & ~(P_NEED_UPDATE | P_NO_ERROR)) != flags) && (!(oldflags & P_NO_ERROR)))
1993	LOG (llevDebug, "update_position: updated flags do not match old flags: %s (old=%d,new=%d) %x != %x\n",
1994	m->path, x, y, (oldflags & ~P_NEED_UPDATE), flags);
1995
1996	mapspace &s = m->at (x, y);
1997
1998	s.flags = flags;	1142	this->flags_ = flags;
1999	s.move_block = move_block & ~move_allow;	1143	this->move_block = move_block & ~move_allow;
2000	s.move_on = move_on;	1144	this->move_on = move_on;
2001	s.move_off = move_off;	1145	this->move_off = move_off;
2002	s.move_slow = move_slow;	1146	this->move_slow = move_slow;
2003		1147
2004	/* At this point, we have a floor face (if there is a floor),	1148	/* At this point, we have a floor face (if there is a floor),
2005	* and the floor is set - we are not going to touch it at	1149	* and the floor is set - we are not going to touch it at
2006	* this point.	1150	* this point.
2007	* middle contains the highest visibility face.	1151	* middle contains the highest visibility face.
…		…
2014	* middle face. This should not happen, as we already have the	1158	* middle face. This should not happen, as we already have the
2015	* else statement above so middle should not get set. OTOH, it	1159	* else statement above so middle should not get set. OTOH, it
2016	* may be possible for the faces to match but be different objects.	1160	* may be possible for the faces to match but be different objects.
2017	*/	1161	*/
2018	if (top == middle)	1162	if (top == middle)
2019	middle = blank_face;	1163	middle = 0;
2020		1164
2021	/* There are three posibilities at this point:	1165	/* There are three posibilities at this point:
2022	* 1) top face is set, need middle to be set.	1166	* 1) top face is set, need middle to be set.
2023	* 2) middle is set, need to set top.	1167	* 2) middle is set, need to set top.
2024	* 3) neither middle or top is set - need to set both.	1168	* 3) neither middle or top is set - need to set both.
…		…
2029	/* Once we get to a floor, stop, since we already have a floor object */	1173	/* Once we get to a floor, stop, since we already have a floor object */
2030	if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))	1174	if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))
2031	break;	1175	break;
2032		1176
2033	/* If two top faces are already set, quit processing */	1177	/* If two top faces are already set, quit processing */
2034	if ((top != blank_face) && (middle != blank_face))	1178	if (top && middle)
2035	break;	1179	break;
2036		1180
2037	/* Only show visible faces, unless its the editor - show all */	1181	/* Only show visible faces */
2038	if (!tmp->invisible || editor)	1182	if (!tmp->invisible)
2039	{	1183	{
2040	/* Fill in top if needed */	1184	/* Fill in top if needed */
2041	if (top == blank_face)	1185	if (!top)
2042	{	1186	{
2043	top = tmp->face;
2044	top_obj = tmp;	1187	top = tmp;
2045	if (top == middle)	1188	if (top == middle)
2046	middle = blank_face;	1189	middle = 0;
2047	}	1190	}
2048	else	1191	else
2049	{	1192	{
2050	/* top is already set - we should only get here if	1193	/* top is already set - we should only get here if
2051	* middle is not set	1194	* middle is not set
2052	*	1195	*
2053	* Set the middle face and break out, since there is nothing	1196	* Set the middle face and break out, since there is nothing
2054	* more to fill in. We don't check visiblity here, since	1197	* more to fill in. We don't check visiblity here, since
2055	*	1198	*
2056	*/	1199	*/
2057	if (tmp->face != top)	1200	if (tmp != top)
2058	{	1201	{
2059	middle = tmp->face;
2060	middle_obj = tmp;	1202	middle = tmp;
2061	break;	1203	break;
2062	}	1204	}
2063	}	1205	}
2064	}	1206	}
2065	}	1207	}
2066		1208
2067	if (middle == floor)	1209	if (middle == floor)
2068	middle = blank_face;	1210	middle = 0;
2069		1211
2070	if (top == middle)	1212	if (top == middle)
2071	middle = blank_face;	1213	middle = 0;
2072		1214
2073	SET_MAP_FACE (m, x, y, top, 0);	1215	#if 0
2074	if (top != blank_face)	1216	faces_obj [0] = top;
2075	SET_MAP_FACE_OBJ (m, x, y, top_obj, 0);	1217	faces_obj [1] = middle;
2076	else	1218	faces_obj [2] = floor;
2077	SET_MAP_FACE_OBJ (m, x, y, NULL, 0);	1219	#endif
2078
2079	SET_MAP_FACE (m, x, y, middle, 1);
2080	if (middle != blank_face)
2081	SET_MAP_FACE_OBJ (m, x, y, middle_obj, 1);
2082	else
2083	SET_MAP_FACE_OBJ (m, x, y, NULL, 1);
2084
2085	SET_MAP_FACE (m, x, y, floor, 2);
2086	if (floor != blank_face)
2087	SET_MAP_FACE_OBJ (m, x, y, floor_obj, 2);
2088	else
2089	SET_MAP_FACE_OBJ (m, x, y, NULL, 2);
2090
2091	SET_MAP_LIGHT (m, x, y, light);
2092	}	1220	}
2093		1221
2094		1222	uint64
2095	void	1223	mapspace::volume () const
2096	set_map_reset_time (maptile *map)
2097	{	1224	{
2098	int timeout;	1225	uint64 vol = 0;
2099		1226
2100	timeout = MAP_RESET_TIMEOUT (map);	1227	for (object *op = top; op && !op->flag [FLAG_NO_PICK]; op = op->below)
2101	if (timeout <= 0)	1228	vol += op->volume ();
2102	timeout = MAP_DEFAULTRESET;
2103	if (timeout >= MAP_MAXRESET)
2104	timeout = MAP_MAXRESET;
2105	MAP_WHEN_RESET (map) = time (0) + timeout;
2106	}
2107		1229
		1230	return vol;
		1231	}
		1232
2108	/* this updates the orig_map->tile_map[tile_num] value after loading	1233	/* this updates the orig_map->tile_map[tile_num] value after finding
2109	* the map. It also takes care of linking back the freshly loaded	1234	* the map. It also takes care of linking back the freshly found
2110	* maps tile_map values if it tiles back to this one. It returns	1235	* maps tile_map values if it tiles back to this one. It returns
2111	* the value of orig_map->tile_map[tile_num]. It really only does this	1236	* the value of orig_map->tile_map[tile_num].
2112	* so that it is easier for calling functions to verify success.
2113	*/	1237	*/
2114
2115	static maptile *	1238	static inline maptile *
2116	load_and_link_tiled_map (maptile *orig_map, int tile_num)	1239	find_and_link (maptile *orig_map, int tile_num)
2117	{	1240	{
		1241	maptile *mp = orig_map->tile_map [tile_num];
		1242
		1243	if (!mp)
		1244	{
		1245	mp = orig_map->find_sync (orig_map->tile_path [tile_num], orig_map);
		1246
		1247	if (!mp)
		1248	{
		1249	// emergency mode, manufacture a dummy map, this creates a memleak, but thats fine
		1250	LOG (llevError, "FATAL: cannot load tiled map %s from %s, leaking memory and worse!\n",
		1251	&orig_map->tile_path[tile_num], &orig_map->path);
		1252	mp = new maptile (1, 1);
		1253	mp->alloc ();
		1254	mp->in_memory = MAP_IN_MEMORY;
		1255	}
		1256	}
		1257
2118	int dest_tile = (tile_num + 2) % 4;	1258	int dest_tile = (tile_num + 2) % 4;
2119	char *path = path_combine_and_normalize (orig_map->path, orig_map->tile_path[tile_num]);
2120		1259
2121	orig_map->tile_map[tile_num] = ready_map_name (path, 0);	1260	orig_map->tile_map [tile_num] = mp;
2122		1261
2123	/* need to do a strcmp here as the orig_map->path is not a shared string */	1262	// optimisation: back-link map to origin map if euclidean
2124	if (orig_map->tile_map[tile_num]->tile_path[dest_tile] && !strcmp (orig_map->tile_map[tile_num]->tile_path[dest_tile], orig_map->path))	1263	//TODO: non-euclidean maps MUST GO
		1264	if (orig_map->tile_map[tile_num]->tile_path[dest_tile] == orig_map->path)
2125	orig_map->tile_map[tile_num]->tile_map[dest_tile] = orig_map;	1265	orig_map->tile_map[tile_num]->tile_map[dest_tile] = orig_map;
2126		1266
2127	return orig_map->tile_map[tile_num];	1267	return mp;
		1268	}
		1269
		1270	static inline void
		1271	load_and_link (maptile *orig_map, int tile_num)
		1272	{
		1273	find_and_link (orig_map, tile_num)->load_sync ();
2128	}	1274	}
2129		1275
2130	/* this returns TRUE if the coordinates (x,y) are out of	1276	/* this returns TRUE if the coordinates (x,y) are out of
2131	* map m. This function also takes into account any	1277	* map m. This function also takes into account any
2132	* tiling considerations, loading adjacant maps as needed.	1278	* tiling considerations, loading adjacant maps as needed.
2133	* This is the function should always be used when it	1279	* This is the function should always be used when it
2134	* necessary to check for valid coordinates.	1280	* necessary to check for valid coordinates.
2135	* This function will recursively call itself for the	1281	* This function will recursively call itself for the
2136	* tiled maps.	1282	* tiled maps.
2137	*
2138	*
2139	*/	1283	*/
2140	int	1284	int
2141	out_of_map (maptile *m, int x, int y)	1285	out_of_map (maptile *m, int x, int y)
2142	{	1286	{
2143
2144	/* If we get passed a null map, this is obviously the	1287	/* If we get passed a null map, this is obviously the
2145	* case. This generally shouldn't happen, but if the	1288	* case. This generally shouldn't happen, but if the
2146	* map loads fail below, it could happen.	1289	* map loads fail below, it could happen.
2147	*/	1290	*/
2148	if (!m)	1291	if (!m)
…		…
2150		1293
2151	if (x < 0)	1294	if (x < 0)
2152	{	1295	{
2153	if (!m->tile_path[3])	1296	if (!m->tile_path[3])
2154	return 1;	1297	return 1;
		1298
2155	if (!m->tile_map[3] || m->tile_map[3]->in_memory != MAP_IN_MEMORY)	1299	if (!m->tile_map[3] || m->tile_map[3]->in_memory != MAP_IN_MEMORY)
2156	{	1300	find_and_link (m, 3);
2157	load_and_link_tiled_map (m, 3);	1301
2158	}
2159	return (out_of_map (m->tile_map[3], x + MAP_WIDTH (m->tile_map[3]), y));	1302	return out_of_map (m->tile_map[3], x + m->tile_map[3]->width, y);
2160	}	1303	}
2161	if (x >= MAP_WIDTH (m))	1304
		1305	if (x >= m->width)
2162	{	1306	{
2163	if (!m->tile_path[1])	1307	if (!m->tile_path[1])
2164	return 1;	1308	return 1;
		1309
2165	if (!m->tile_map[1] || m->tile_map[1]->in_memory != MAP_IN_MEMORY)	1310	if (!m->tile_map[1] || m->tile_map[1]->in_memory != MAP_IN_MEMORY)
2166	{	1311	find_and_link (m, 1);
2167	load_and_link_tiled_map (m, 1);	1312
2168	}
2169	return (out_of_map (m->tile_map[1], x - MAP_WIDTH (m), y));	1313	return out_of_map (m->tile_map[1], x - m->width, y);
2170	}	1314	}
		1315
2171	if (y < 0)	1316	if (y < 0)
2172	{	1317	{
2173	if (!m->tile_path[0])	1318	if (!m->tile_path[0])
2174	return 1;	1319	return 1;
		1320
2175	if (!m->tile_map[0] || m->tile_map[0]->in_memory != MAP_IN_MEMORY)	1321	if (!m->tile_map[0] || m->tile_map[0]->in_memory != MAP_IN_MEMORY)
2176	{	1322	find_and_link (m, 0);
2177	load_and_link_tiled_map (m, 0);	1323
2178	}
2179	return (out_of_map (m->tile_map[0], x, y + MAP_HEIGHT (m->tile_map[0])));	1324	return out_of_map (m->tile_map[0], x, y + m->tile_map[0]->height);
2180	}	1325	}
2181	if (y >= MAP_HEIGHT (m))	1326
		1327	if (y >= m->height)
2182	{	1328	{
2183	if (!m->tile_path[2])	1329	if (!m->tile_path[2])
2184	return 1;	1330	return 1;
		1331
2185	if (!m->tile_map[2] || m->tile_map[2]->in_memory != MAP_IN_MEMORY)	1332	if (!m->tile_map[2] || m->tile_map[2]->in_memory != MAP_IN_MEMORY)
2186	{	1333	find_and_link (m, 2);
2187	load_and_link_tiled_map (m, 2);	1334
2188	}
2189	return (out_of_map (m->tile_map[2], x, y - MAP_HEIGHT (m)));	1335	return out_of_map (m->tile_map[2], x, y - m->height);
2190	}	1336	}
2191		1337
2192	/* Simple case - coordinates are within this local	1338	/* Simple case - coordinates are within this local
2193	* map.	1339	* map.
2194	*/	1340	*/
…		…
2197		1343
2198	/* This is basically the same as out_of_map above, but	1344	/* This is basically the same as out_of_map above, but
2199	* instead we return NULL if no map is valid (coordinates	1345	* instead we return NULL if no map is valid (coordinates
2200	* out of bounds and no tiled map), otherwise it returns	1346	* out of bounds and no tiled map), otherwise it returns
2201	* the map as that the coordinates are really on, and	1347	* the map as that the coordinates are really on, and
2202	* updates x and y to be the localized coordinates.	1348	* updates x and y to be the localised coordinates.
2203	* Using this is more efficient of calling out_of_map	1349	* Using this is more efficient of calling out_of_map
2204	* and then figuring out what the real map is	1350	* and then figuring out what the real map is
2205	*/	1351	*/
2206	maptile *	1352	maptile *
2207	get_map_from_coord (maptile *m, sint16 * x, sint16 * y)	1353	maptile::xy_find (sint16 &x, sint16 &y)
2208	{	1354	{
2209
2210	if (*x < 0)	1355	if (x < 0)
2211	{	1356	{
2212	if (!m->tile_path[3])	1357	if (!tile_path[3])
2213	return NULL;	1358	return 0;
2214	if (!m->tile_map[3] || m->tile_map[3]->in_memory != MAP_IN_MEMORY)
2215	load_and_link_tiled_map (m, 3);
2216		1359
2217	*x += MAP_WIDTH (m->tile_map[3]);	1360	find_and_link (this, 3);
2218	return (get_map_from_coord (m->tile_map[3], x, y));	1361	x += tile_map[3]->width;
2219	}	1362	return tile_map[3]->xy_find (x, y);
2220	if (*x >= MAP_WIDTH (m))
2221	{	1363	}
		1364
		1365	if (x >= width)
		1366	{
2222	if (!m->tile_path[1])	1367	if (!tile_path[1])
2223	return NULL;	1368	return 0;
2224	if (!m->tile_map[1] || m->tile_map[1]->in_memory != MAP_IN_MEMORY)
2225	load_and_link_tiled_map (m, 1);
2226		1369
2227	*x -= MAP_WIDTH (m);	1370	find_and_link (this, 1);
2228	return (get_map_from_coord (m->tile_map[1], x, y));	1371	x -= width;
		1372	return tile_map[1]->xy_find (x, y);
2229	}	1373	}
		1374
2230	if (*y < 0)	1375	if (y < 0)
2231	{	1376	{
2232	if (!m->tile_path[0])	1377	if (!tile_path[0])
2233	return NULL;	1378	return 0;
2234	if (!m->tile_map[0] || m->tile_map[0]->in_memory != MAP_IN_MEMORY)
2235	load_and_link_tiled_map (m, 0);
2236		1379
2237	*y += MAP_HEIGHT (m->tile_map[0]);	1380	find_and_link (this, 0);
2238	return (get_map_from_coord (m->tile_map[0], x, y));	1381	y += tile_map[0]->height;
2239	}	1382	return tile_map[0]->xy_find (x, y);
2240	if (*y >= MAP_HEIGHT (m))
2241	{	1383	}
		1384
		1385	if (y >= height)
		1386	{
2242	if (!m->tile_path[2])	1387	if (!tile_path[2])
2243	return NULL;	1388	return 0;
2244	if (!m->tile_map[2] || m->tile_map[2]->in_memory != MAP_IN_MEMORY)
2245	load_and_link_tiled_map (m, 2);
2246		1389
2247	*y -= MAP_HEIGHT (m);	1390	find_and_link (this, 2);
2248	return (get_map_from_coord (m->tile_map[2], x, y));	1391	y -= height;
		1392	return tile_map[2]->xy_find (x, y);
2249	}	1393	}
2250		1394
2251	/* Simple case - coordinates are within this local	1395	/* Simple case - coordinates are within this local
2252	* map.	1396	* map.
2253	*/	1397	*/
2254
2255	return m;	1398	return this;
2256	}	1399	}
2257		1400
2258	/**	1401	/**
2259	* Return whether map2 is adjacent to map1. If so, store the distance from	1402	* Return whether map2 is adjacent to map1. If so, store the distance from
2260	* map1 to map2 in dx/dy.	1403	* map1 to map2 in dx/dy.
2261	*/	1404	*/
2262	static int	1405	int
2263	adjacent_map (const maptile *map1, const maptile *map2, int *dx, int *dy)	1406	adjacent_map (const maptile *map1, const maptile *map2, int *dx, int *dy)
2264	{	1407	{
2265	if (!map1 || !map2)	1408	if (!map1 || !map2)
2266	return 0;	1409	return 0;
2267		1410
		1411	//TODO: this doesn't actually check corretcly when intermediate maps are not loaded
		1412	//fix: compare paths instead (this is likely faster, too!)
2268	if (map1 == map2)	1413	if (map1 == map2)
2269	{	1414	{
2270	*dx = 0;	1415	*dx = 0;
2271	*dy = 0;	1416	*dy = 0;
2272
2273	}	1417	}
2274	else if (map1->tile_map[0] == map2)	1418	else if (map1->tile_map[0] == map2)
2275	{ /* up */	1419	{ /* up */
2276	*dx = 0;	1420	*dx = 0;
2277	*dy = -MAP_HEIGHT (map2);	1421	*dy = -map2->height;
2278	}	1422	}
2279	else if (map1->tile_map[1] == map2)	1423	else if (map1->tile_map[1] == map2)
2280	{ /* right */	1424	{ /* right */
2281	*dx = MAP_WIDTH (map1);	1425	*dx = map1->width;
2282	*dy = 0;	1426	*dy = 0;
2283	}	1427	}
2284	else if (map1->tile_map[2] == map2)	1428	else if (map1->tile_map[2] == map2)
2285	{ /* down */	1429	{ /* down */
2286	*dx = 0;	1430	*dx = 0;
2287	*dy = MAP_HEIGHT (map1);	1431	*dy = map1->height;
2288	}	1432	}
2289	else if (map1->tile_map[3] == map2)	1433	else if (map1->tile_map[3] == map2)
2290	{ /* left */	1434	{ /* left */
2291	*dx = -MAP_WIDTH (map2);	1435	*dx = -map2->width;
2292	*dy = 0;	1436	*dy = 0;
2293
2294	}	1437	}
2295	else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[1] == map2)	1438	else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[1] == map2)
2296	{ /* up right */	1439	{ /* up right */
2297	*dx = MAP_WIDTH (map1->tile_map[0]);	1440	*dx = map1->tile_map[0]->width;
2298	*dy = -MAP_HEIGHT (map1->tile_map[0]);	1441	*dy = -map1->tile_map[0]->height;
2299	}	1442	}
2300	else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[3] == map2)	1443	else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[3] == map2)
2301	{ /* up left */	1444	{ /* up left */
2302	*dx = -MAP_WIDTH (map2);	1445	*dx = -map2->width;
2303	*dy = -MAP_HEIGHT (map1->tile_map[0]);	1446	*dy = -map1->tile_map[0]->height;
2304	}	1447	}
2305	else if (map1->tile_map[1] && map1->tile_map[1]->tile_map[0] == map2)	1448	else if (map1->tile_map[1] && map1->tile_map[1]->tile_map[0] == map2)
2306	{ /* right up */	1449	{ /* right up */
2307	*dx = MAP_WIDTH (map1);	1450	*dx = map1->width;
2308	*dy = -MAP_HEIGHT (map2);	1451	*dy = -map2->height;
2309	}	1452	}
2310	else if (map1->tile_map[1] && map1->tile_map[1]->tile_map[2] == map2)	1453	else if (map1->tile_map[1] && map1->tile_map[1]->tile_map[2] == map2)
2311	{ /* right down */	1454	{ /* right down */
2312	*dx = MAP_WIDTH (map1);	1455	*dx = map1->width;
2313	*dy = MAP_HEIGHT (map1->tile_map[1]);	1456	*dy = map1->tile_map[1]->height;
2314	}	1457	}
2315	else if (map1->tile_map[2] && map1->tile_map[2]->tile_map[1] == map2)	1458	else if (map1->tile_map[2] && map1->tile_map[2]->tile_map[1] == map2)
2316	{ /* down right */	1459	{ /* down right */
2317	*dx = MAP_WIDTH (map1->tile_map[2]);	1460	*dx = map1->tile_map[2]->width;
2318	*dy = MAP_HEIGHT (map1);	1461	*dy = map1->height;
2319	}	1462	}
2320	else if (map1->tile_map[2] && map1->tile_map[2]->tile_map[3] == map2)	1463	else if (map1->tile_map[2] && map1->tile_map[2]->tile_map[3] == map2)
2321	{ /* down left */	1464	{ /* down left */
2322	*dx = -MAP_WIDTH (map2);	1465	*dx = -map2->width;
2323	*dy = MAP_HEIGHT (map1);	1466	*dy = map1->height;
2324	}	1467	}
2325	else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[0] == map2)	1468	else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[0] == map2)
2326	{ /* left up */	1469	{ /* left up */
2327	*dx = -MAP_WIDTH (map1->tile_map[3]);	1470	*dx = -map1->tile_map[3]->width;
2328	*dy = -MAP_HEIGHT (map2);	1471	*dy = -map2->height;
2329	}	1472	}
2330	else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[2] == map2)	1473	else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[2] == map2)
2331	{ /* left down */	1474	{ /* left down */
2332	*dx = -MAP_WIDTH (map1->tile_map[3]);	1475	*dx = -map1->tile_map[3]->width;
2333	*dy = MAP_HEIGHT (map1->tile_map[3]);	1476	*dy = map1->tile_map[3]->height;
2334
2335	}	1477	}
2336	else	1478	else
2337	{ /* not "adjacent" enough */
2338	return 0;	1479	return 0;
2339	}
2340		1480
2341	return 1;	1481	return 1;
		1482	}
		1483
		1484	maptile *
		1485	maptile::xy_load (sint16 &x, sint16 &y)
		1486	{
		1487	maptile *map = xy_find (x, y);
		1488
		1489	if (map)
		1490	map->load_sync ();
		1491
		1492	return map;
		1493	}
		1494
		1495	maptile *
		1496	get_map_from_coord (maptile *m, sint16 *x, sint16 *y)
		1497	{
		1498	return m->xy_load (*x, *y);
2342	}	1499	}
2343		1500
2344	/* From map.c	1501	/* From map.c
2345	* This is used by get_player to determine where the other	1502	* This is used by get_player to determine where the other
2346	* creature is. get_rangevector takes into account map tiling,	1503	* creature is. get_rangevector takes into account map tiling,
2347	* so you just can not look the the map coordinates and get the	1504	* so you just can not look the the map coordinates and get the
2348	* righte value. distance_x/y are distance away, which	1505	* righte value. distance_x/y are distance away, which
2349	* can be negativbe. direction is the crossfire direction scheme	1506	* can be negative. direction is the crossfire direction scheme
2350	* that the creature should head. part is the part of the	1507	* that the creature should head. part is the part of the
2351	* monster that is closest.	1508	* monster that is closest.
2352	*	1509	*
2353	* get_rangevector looks at op1 and op2, and fills in the	1510	* get_rangevector looks at op1 and op2, and fills in the
2354	* structure for op1 to get to op2.	1511	* structure for op1 to get to op2.
…		…
2359	* be unexpected	1516	* be unexpected
2360	*	1517	*
2361	* currently, the only flag supported (0x1) is don't translate for	1518	* currently, the only flag supported (0x1) is don't translate for
2362	* closest body part of 'op1'	1519	* closest body part of 'op1'
2363	*/	1520	*/
2364
2365	void	1521	void
2366	get_rangevector (object *op1, object *op2, rv_vector * retval, int flags)	1522	get_rangevector (object *op1, object *op2, rv_vector * retval, int flags)
2367	{	1523	{
2368	if (!adjacent_map (op1->map, op2->map, &retval->distance_x, &retval->distance_y))	1524	if (!adjacent_map (op1->map, op2->map, &retval->distance_x, &retval->distance_y))
2369	{	1525	{
2370	/* be conservative and fill in _some_ data */	1526	/* be conservative and fill in _some_ data */
2371	retval->distance = 100000;	1527	retval->distance = 10000;
2372	retval->distance_x = 32767;	1528	retval->distance_x = 10000;
2373	retval->distance_y = 32767;	1529	retval->distance_y = 10000;
2374	retval->direction = 0;	1530	retval->direction = 0;
2375	retval->part = 0;	1531	retval->part = 0;
2376	}	1532	}
2377	else	1533	else
2378	{	1534	{
…		…
2383		1539
2384	best = op1;	1540	best = op1;
2385	/* If this is multipart, find the closest part now */	1541	/* If this is multipart, find the closest part now */
2386	if (!(flags & 0x1) && op1->more)	1542	if (!(flags & 0x1) && op1->more)
2387	{	1543	{
2388	object *tmp;
2389	int best_distance = retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y, tmpi;	1544	int best_distance = retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y, tmpi;
2390		1545
2391	/* we just take the offset of the piece to head to figure	1546	/* we just take the offset of the piece to head to figure
2392	* distance instead of doing all that work above again	1547	* distance instead of doing all that work above again
2393	* since the distance fields we set above are positive in the	1548	* since the distance fields we set above are positive in the
2394	* same axis as is used for multipart objects, the simply arithmetic	1549	* same axis as is used for multipart objects, the simply arithmetic
2395	* below works.	1550	* below works.
2396	*/	1551	*/
2397	for (tmp = op1->more; tmp != NULL; tmp = tmp->more)	1552	for (object *tmp = op1->more; tmp; tmp = tmp->more)
2398	{	1553	{
2399	tmpi = (op1->x - tmp->x + retval->distance_x) * (op1->x - tmp->x + retval->distance_x) +	1554	tmpi = (op1->x - tmp->x + retval->distance_x) * (op1->x - tmp->x + retval->distance_x) +
2400	(op1->y - tmp->y + retval->distance_y) * (op1->y - tmp->y + retval->distance_y);	1555	(op1->y - tmp->y + retval->distance_y) * (op1->y - tmp->y + retval->distance_y);
2401	if (tmpi < best_distance)	1556	if (tmpi < best_distance)
2402	{	1557	{
2403	best_distance = tmpi;	1558	best_distance = tmpi;
2404	best = tmp;	1559	best = tmp;
2405	}	1560	}
2406	}	1561	}
		1562
2407	if (best != op1)	1563	if (best != op1)
2408	{	1564	{
2409	retval->distance_x += op1->x - best->x;	1565	retval->distance_x += op1->x - best->x;
2410	retval->distance_y += op1->y - best->y;	1566	retval->distance_y += op1->y - best->y;
2411	}	1567	}
2412	}	1568	}
		1569
2413	retval->part = best;	1570	retval->part = best;
2414	retval->distance = isqrt (retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y);	1571	retval->distance = upos_max (abs (retval->distance_x), abs (retval->distance_y));
2415	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);	1572	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);
2416	}	1573	}
2417	}	1574	}
2418		1575
2419	/* this is basically the same as get_rangevector above, but instead of	1576	/* this is basically the same as get_rangevector above, but instead of
…		…
2424	* flags has no meaning for this function at this time - I kept it in to	1581	* flags has no meaning for this function at this time - I kept it in to
2425	* be more consistant with the above function and also in case they are needed	1582	* be more consistant with the above function and also in case they are needed
2426	* for something in the future. Also, since no object is pasted, the best	1583	* for something in the future. Also, since no object is pasted, the best
2427	* field of the rv_vector is set to NULL.	1584	* field of the rv_vector is set to NULL.
2428	*/	1585	*/
2429
2430	void	1586	void
2431	get_rangevector_from_mapcoord (const maptile *m, int x, int y, const object *op2, rv_vector * retval, int flags)	1587	get_rangevector_from_mapcoord (const maptile *m, int x, int y, const object *op2, rv_vector *retval, int flags)
2432	{	1588	{
2433	if (!adjacent_map (m, op2->map, &retval->distance_x, &retval->distance_y))	1589	if (!adjacent_map (m, op2->map, &retval->distance_x, &retval->distance_y))
2434	{	1590	{
2435	/* be conservative and fill in _some_ data */	1591	/* be conservative and fill in _some_ data */
2436	retval->distance = 100000;	1592	retval->distance = 100000;
…		…
2443	{	1599	{
2444	retval->distance_x += op2->x - x;	1600	retval->distance_x += op2->x - x;
2445	retval->distance_y += op2->y - y;	1601	retval->distance_y += op2->y - y;
2446		1602
2447	retval->part = NULL;	1603	retval->part = NULL;
2448	retval->distance = isqrt (retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y);	1604	retval->distance = idistance (retval->distance_x, retval->distance_y);
2449	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);	1605	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);
2450	}	1606	}
2451	}	1607	}
2452		1608
2453	/* Returns true of op1 and op2 are effectively on the same map	1609	/* Returns true of op1 and op2 are effectively on the same map
2454	* (as related to map tiling). Note that this looks for a path from	1610	* (as related to map tiling). Note that this looks for a path from
2455	* op1 to op2, so if the tiled maps are assymetric and op2 has a path	1611	* op1 to op2, so if the tiled maps are asymetric and op2 has a path
2456	* to op1, this will still return false.	1612	* to op1, this will still return false.
2457	* Note we only look one map out to keep the processing simple	1613	* Note we only look one map out to keep the processing simple
2458	* and efficient. This could probably be a macro.	1614	* and efficient. This could probably be a macro.
2459	* MSW 2001-08-05	1615	* MSW 2001-08-05
2460	*/	1616	*/
…		…
2463	{	1619	{
2464	int dx, dy;	1620	int dx, dy;
2465		1621
2466	return adjacent_map (op1->map, op2->map, &dx, &dy);	1622	return adjacent_map (op1->map, op2->map, &dx, &dy);
2467	}	1623	}
		1624
		1625	object *
		1626	maptile::insert (object *op, int x, int y, object *originator, int flags)
		1627	{
		1628	if (!op->flag [FLAG_REMOVED])
		1629	op->remove ();
		1630
		1631	return insert_ob_in_map_at (op, this, originator, flags, x, y);
		1632	}
		1633
		1634	region *
		1635	maptile::region (int x, int y) const
		1636	{
		1637	if (regions
		1638	&& regionmap
		1639	&& !OUT_OF_REAL_MAP (this, x, y))
		1640	if (struct region *reg = regionmap [regions [y * width + x]])
		1641	return reg;
		1642
		1643	if (default_region)
		1644	return default_region;
		1645
		1646	return ::region::default_region ();
		1647	}
		1648
		1649	/* picks a random object from a style map.
		1650	* Redone by MSW so it should be faster and not use static
		1651	* variables to generate tables.
		1652	*/
		1653	object *
		1654	maptile::pick_random_object () const
		1655	{
		1656	/* while returning a null object will result in a crash, that
		1657	* is actually preferable to an infinite loop. That is because
		1658	* most servers will automatically restart in case of crash.
		1659	* Change the logic on getting the random space - shouldn't make
		1660	* any difference, but this seems clearer to me.
		1661	*/
		1662	for (int i = 1000; --i;)
		1663	{
		1664	object *pick = at (rndm (width), rndm (height)).bot;
		1665
		1666	// do not prefer big monsters just because they are big.
		1667	if (pick && pick->head_ () == pick)
		1668	return pick->head_ ();
		1669	}
		1670
		1671	// instead of crashing in the unlikely(?) case, try to return *something*
		1672	return get_archetype ("blocked");
		1673	}
		1674
		1675	void
		1676	maptile::play_sound (faceidx sound, int x, int y) const
		1677	{
		1678	if (!sound)
		1679	return;
		1680
		1681	for_all_players (pl)
		1682	if (pl->ob->map == this)
		1683	if (client *ns = pl->ns)
		1684	{
		1685	int dx = x - pl->ob->x;
		1686	int dy = y - pl->ob->y;
		1687
		1688	int distance = idistance (dx, dy);
		1689
		1690	if (distance <= MAX_SOUND_DISTANCE)
		1691	ns->play_sound (sound, dx, dy);
		1692	}
		1693	}
		1694

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