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Comparing deliantra/server/common/map.C (file contents):
Revision 1.32 by root, Thu Oct 5 16:50:06 2006 UTC vs.
Revision 1.144 by root, Mon Jul 14 16:42:48 2008 UTC

1	/*	1	/*
2	CrossFire, A Multiplayer game for X-windows	2	* This file is part of Deliantra, the Roguelike Realtime MMORPG.
3		3	*
		4	* Copyright (©) 2005,2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra 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	* Deliantra 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 to <support@deliantra.net>
21	The authors can be reached via e-mail at <crossfire@schmorp.de>
22	*/	22	*/
23		23
24
25	#include <global.h>
26	#include <funcpoint.h>
27
28	#include <loader.h>
29	#ifndef WIN32 /* ---win32 exclude header */
30	# include <unistd.h>	24	#include <unistd.h>
31	#endif /* win32 */
32		25
		26	#include "global.h"
		27	#include "loader.h"
33	#include "path.h"	28	#include "path.h"
34
35
36	extern int nrofallocobjects, nroffreeobjects;
37
38	/*
39	* Returns the maptile which has a name matching the given argument.
40	* return NULL if no match is found.
41	*/
42
43	maptile *
44	has_been_loaded (const char *name)
45	{
46	maptile *map;
47
48	if (!name || !*name)
49	return 0;
50	for (map = first_map; map; map = map->next)
51	if (!strcmp (name, map->path))
52	break;
53	return (map);
54	}
55
56	/*
57	* This makes a path absolute outside the world of Crossfire.
58	* In other words, it prepends LIBDIR/MAPDIR/ to the given path
59	* and returns the pointer to a static array containing the result.
60	* it really should be called create_mapname
61	*/
62
63	const char *
64	create_pathname (const char *name)
65	{
66	static char buf[MAX_BUF];
67
68	/* Why? having extra / doesn't confuse unix anyplace? Dependancies
69	* someplace else in the code? msw 2-17-97
70	*/
71	if (*name == '/')
72	sprintf (buf, "%s/%s%s", settings.datadir, settings.mapdir, name);
73	else
74	sprintf (buf, "%s/%s/%s", settings.datadir, settings.mapdir, name);
75	return (buf);
76	}
77
78	/*
79	* same as create_pathname, but for the overlay maps.
80	*/
81
82	const char *
83	create_overlay_pathname (const char *name)
84	{
85	static char buf[MAX_BUF];
86
87	/* Why? having extra / doesn't confuse unix anyplace? Dependancies
88	* someplace else in the code? msw 2-17-97
89	*/
90	if (*name == '/')
91	sprintf (buf, "%s/%s%s", settings.localdir, settings.mapdir, name);
92	else
93	sprintf (buf, "%s/%s/%s", settings.localdir, settings.mapdir, name);
94	return (buf);
95	}
96
97	/*
98	* same as create_pathname, but for the template maps.
99	*/
100
101	const char *
102	create_template_pathname (const char *name)
103	{
104	static char buf[MAX_BUF];
105
106	/* Why? having extra / doesn't confuse unix anyplace? Dependancies
107	* someplace else in the code? msw 2-17-97
108	*/
109	if (*name == '/')
110	sprintf (buf, "%s/%s%s", settings.localdir, settings.templatedir, name);
111	else
112	sprintf (buf, "%s/%s/%s", settings.localdir, settings.templatedir, name);
113	return (buf);
114	}
115
116	/*
117	* This makes absolute path to the itemfile where unique objects
118	* will be saved. Converts '/' to '@'. I think it's essier maintain
119	* files than full directory structure, but if this is problem it can
120	* be changed.
121	*/
122	static const char *
123	create_items_path (const char *s)
124	{
125	static char buf[MAX_BUF];
126	char *t;
127
128	if (*s == '/')
129	s++;
130
131	sprintf (buf, "%s/%s/", settings.localdir, settings.uniquedir);
132
133	for (t = buf + strlen (buf); *s; s++, t++)
134	if (*s == '/')
135	*t = '@';
136	else
137	*t = *s;
138	*t = 0;
139	return (buf);
140	}
141
142
143	/*
144	* This function checks if a file with the given path exists.
145	* -1 is returned if it fails, otherwise the mode of the file
146	* is returned.
147	* It tries out all the compression suffixes listed in the uncomp[] array.
148	*
149	* If prepend_dir is set, then we call create_pathname (which prepends
150	* libdir & mapdir). Otherwise, we assume the name given is fully
151	* complete.
152	* Only the editor actually cares about the writablity of this -
153	* the rest of the code only cares that the file is readable.
154	* when the editor goes away, the call to stat should probably be
155	* replaced by an access instead (similar to the windows one, but
156	* that seems to be missing the prepend_dir processing
157	*/
158
159	int
160	check_path (const char *name, int prepend_dir)
161	{
162	char buf[MAX_BUF];
163
164	#ifndef WIN32
165	char *endbuf;
166	struct stat statbuf;
167	int mode = 0;
168	#endif
169
170	if (prepend_dir)
171	strcpy (buf, create_pathname (name));
172	else
173	strcpy (buf, name);
174	#ifdef WIN32 /* ***win32: check this sucker in windows style. */
175	return (_access (buf, 0));
176	#else
177
178	/* old method (strchr(buf, '\0')) seemd very odd to me -
179	* this method should be equivalant and is clearer.
180	* Can not use strcat because we need to cycle through
181	* all the names.
182	*/
183	endbuf = buf + strlen (buf);
184
185	if (stat (buf, &statbuf))
186	return -1;
187	if (!S_ISREG (statbuf.st_mode))
188	return (-1);
189
190	if (((statbuf.st_mode & S_IRGRP) && getegid () == statbuf.st_gid) ||
191	((statbuf.st_mode & S_IRUSR) && geteuid () == statbuf.st_uid) || (statbuf.st_mode & S_IROTH))
192	mode |= 4;
193
194	if ((statbuf.st_mode & S_IWGRP && getegid () == statbuf.st_gid) ||
195	(statbuf.st_mode & S_IWUSR && geteuid () == statbuf.st_uid) || (statbuf.st_mode & S_IWOTH))
196	mode |= 2;
197
198	return (mode);
199	#endif
200	}
201
202	/*
203	* Prints out debug-information about a map.
204	* Dumping these at llevError doesn't seem right, but is
205	* necessary to make sure the information is in fact logged.
206	*/
207
208	void
209	dump_map (const maptile *m)
210	{
211	LOG (llevError, "Map %s status: %d.\n", m->path, m->in_memory);
212	LOG (llevError, "Size: %dx%d Start: %d,%d\n", MAP_WIDTH (m), MAP_HEIGHT (m), MAP_ENTER_X (m), MAP_ENTER_Y (m));
213
214	if (m->msg != NULL)
215	LOG (llevError, "Message:\n%s", m->msg);
216
217	if (m->maplore != NULL)
218	LOG (llevError, "Lore:\n%s", m->maplore);
219
220	if (m->tmpname != NULL)
221	LOG (llevError, "Tmpname: %s\n", m->tmpname);
222
223	LOG (llevError, "Difficulty: %d\n", m->difficulty);
224	LOG (llevError, "Darkness: %d\n", m->darkness);
225	}
226
227	/*
228	* Prints out debug-information about all maps.
229	* This basically just goes through all the maps and calls
230	* dump_map on each one.
231	*/
232
233	void
234	dump_all_maps (void)
235	{
236	maptile *m;
237
238	for (m = first_map; m != NULL; m = m->next)
239	{
240	dump_map (m);
241	}
242	}
243		29
244	/* This rolls up wall, blocks_magic, blocks_view, etc, all into	30	/* This rolls up wall, blocks_magic, blocks_view, etc, all into
245	* one function that just returns a P_.. value (see map.h)	31	* one function that just returns a P_.. value (see map.h)
246	* it will also do map translation for tiled maps, returning	32	* it will also do map translation for tiled maps, returning
247	* new values into newmap, nx, and ny. Any and all of those	33	* new values into newmap, nx, and ny. Any and all of those
…		…
250	* is needed. The case of not passing values is if we're just	36	* is needed. The case of not passing values is if we're just
251	* checking for the existence of something on those spaces, but	37	* checking for the existence of something on those spaces, but
252	* don't expect to insert/remove anything from those spaces.	38	* don't expect to insert/remove anything from those spaces.
253	*/	39	*/
254	int	40	int
255	get_map_flags (maptile *oldmap, maptile **newmap, sint16 x, sint16 y, sint16 * nx, sint16 * ny)	41	get_map_flags (maptile *oldmap, maptile **newmap, sint16 x, sint16 y, sint16 *nx, sint16 *ny)
256	{	42	{
257	sint16 newx, newy;	43	sint16 newx = x;
258	int retval = 0;	44	sint16 newy = y;
259	maptile *mp;
260		45
261	if (out_of_map (oldmap, x, y))	46	maptile *mp = get_map_from_coord (oldmap, &newx, &newy);
		47
		48	if (!mp)
262	return P_OUT_OF_MAP;	49	return P_OUT_OF_MAP;
263	newx = x;
264	newy = y;
265	mp = get_map_from_coord (oldmap, &newx, &newy);
266	if (mp != oldmap)
267	retval |= P_NEW_MAP;
268	if (newmap)
269	*newmap = mp;
270	if (nx)
271	*nx = newx;
272	if (ny)
273	*ny = newy;
274		50
275	retval |= mp->spaces[newx + mp->width * newy].flags;	51	if (newmap) *newmap = mp;
		52	if (nx) *nx = newx;
		53	if (ny) *ny = newy;
276		54
277	return retval;	55	return mp->at (newx, newy).flags () | (mp != oldmap ? P_NEW_MAP : 0);
278	}	56	}
279		57
280	/*	58	/*
281	* Returns true if the given coordinate is blocked except by the	59	* Returns true if the given coordinate is blocked except by the
282	* object passed is not blocking. This is used with	60	* object passed is not blocking. This is used with
…		…
305	}	83	}
306		84
307	/* Save some cycles - instead of calling get_map_flags(), just get the value	85	/* Save some cycles - instead of calling get_map_flags(), just get the value
308	* directly.	86	* directly.
309	*/	87	*/
310	mflags = m->spaces[sx + m->width * sy].flags;	88	mflags = m->at (sx, sy).flags ();
311		89
312	blocked = GET_MAP_MOVE_BLOCK (m, sx, sy);	90	blocked = GET_MAP_MOVE_BLOCK (m, sx, sy);
313		91
314	/* If space is currently not blocked by anything, no need to	92	/* If space is currently not blocked by anything, no need to
315	* go further. Not true for players - all sorts of special	93	* go further. Not true for players - all sorts of special
…		…
326	* let the player through (inventory checkers for example)	104	* let the player through (inventory checkers for example)
327	*/	105	*/
328	if (!(mflags & P_IS_ALIVE) && !OB_TYPE_MOVE_BLOCK (ob, blocked))	106	if (!(mflags & P_IS_ALIVE) && !OB_TYPE_MOVE_BLOCK (ob, blocked))
329	return 0;	107	return 0;
330		108
331	if (ob->head != NULL)
332	ob = ob->head;	109	ob = ob->head_ ();
333		110
334	/* We basically go through the stack of objects, and if there is	111	/* We basically go through the stack of objects, and if there is
335	* some other object that has NO_PASS or FLAG_ALIVE set, return	112	* some other object that has NO_PASS or FLAG_ALIVE set, return
336	* true. If we get through the entire stack, that must mean	113	* true. If we get through the entire stack, that must mean
337	* ob is blocking it, so return 0.	114	* ob is blocking it, so return 0.
338	*/	115	*/
339	for (tmp = GET_MAP_OB (m, sx, sy); tmp != NULL; tmp = tmp->above)	116	for (tmp = GET_MAP_OB (m, sx, sy); tmp; tmp = tmp->above)
340	{	117	{
341		118
342	/* This must be before the checks below. Code for inventory checkers. */	119	/* This must be before the checks below. Code for inventory checkers. */
343	if (tmp->type == CHECK_INV && OB_MOVE_BLOCK (ob, tmp))	120	if (tmp->type == CHECK_INV && OB_MOVE_BLOCK (ob, tmp))
344	{	121	{
…		…
367	else	144	else
368	{	145	{
369	/* Broke apart a big nasty if into several here to make	146	/* Broke apart a big nasty if into several here to make
370	* this more readable. first check - if the space blocks	147	* this more readable. first check - if the space blocks
371	* movement, can't move here.	148	* movement, can't move here.
372	* second - if a monster, can't move there, unles it is a	149	* second - if a monster, can't move there, unless it is a
373	* hidden dm	150	* hidden dm
374	*/	151	*/
375	if (OB_MOVE_BLOCK (ob, tmp))	152	if (OB_MOVE_BLOCK (ob, tmp))
376	return 1;	153	return 1;
377	if (QUERY_FLAG (tmp, FLAG_ALIVE) && tmp->head != ob && tmp != ob &&	154
378	tmp->type != DOOR && !(QUERY_FLAG (tmp, FLAG_WIZ) && tmp->contr->hidden))	155	if (tmp->flag [FLAG_ALIVE]
		156	&& tmp->head_ () != ob
		157	&& tmp != ob
		158	&& tmp->type != DOOR
		159	&& !(tmp->flag [FLAG_WIZ] && tmp->contr->hidden))
379	return 1;	160	return 1;
380	}	161	}
381		162
382	}	163	}
383	return 0;	164	return 0;
384	}	165	}
385		166
386
387	/*	167	/*
388	* Returns true if the given object can't fit in the given spot.	168	* Returns qthe blocking object if the given object can't fit in the given
389	* This is meant for multi space objects - for single space objecs,	169	* spot. This is meant for multi space objects - for single space objecs,
390	* just calling get_map_blocked and checking that against movement type	170	* just calling get_map_blocked and checking that against movement type
391	* of object. This function goes through all the parts of the	171	* of object. This function goes through all the parts of the multipart
392	* multipart object and makes sure they can be inserted.	172	* object and makes sure they can be inserted.
393	*	173	*
394	* While this doesn't call out of map, the get_map_flags does.	174	* While this doesn't call out of map, the get_map_flags does.
395	*	175	*
396	* This function has been used to deprecate arch_out_of_map -	176	* This function has been used to deprecate arch_out_of_map -
397	* this function also does that check, and since in most cases,	177	* this function also does that check, and since in most cases,
…		…
408	*	188	*
409	* Note this used to be arch_blocked, but with new movement	189	* Note this used to be arch_blocked, but with new movement
410	* code, we need to have actual object to check its move_type	190	* code, we need to have actual object to check its move_type
411	* against the move_block values.	191	* against the move_block values.
412	*/	192	*/
413		193	bool
414	int	194	object::blocked (maptile *m, int x, int y) const
415	ob_blocked (const object *ob, maptile *m, sint16 x, sint16 y)
416	{	195	{
417	archetype *tmp;	196	for (archetype *tmp = arch; tmp; tmp = (archetype *)tmp->more)
418	int flag;
419	maptile *m1;
420	sint16 sx, sy;
421
422	if (ob == NULL)
423	{
424	flag = get_map_flags (m, &m1, x, y, &sx, &sy);
425	if (flag & P_OUT_OF_MAP)
426	return P_OUT_OF_MAP;
427
428	/* don't have object, so don't know what types would block */
429	return (GET_MAP_MOVE_BLOCK (m1, sx, sy));
430	}	197	{
		198	mapxy pos (m, x + tmp->x, y + tmp->y);
431		199
432	for (tmp = ob->arch; tmp != NULL; tmp = tmp->more)	200	if (!pos.normalise ())
433	{	201	return 1;
434	flag = get_map_flags (m, &m1, x + tmp->clone.x, y + tmp->clone.y, &sx, &sy);
435		202
436	if (flag & P_OUT_OF_MAP)	203	mapspace &ms = *pos;
437	return P_OUT_OF_MAP;	204
438	if (flag & P_IS_ALIVE)	205	if (ms.flags () & P_IS_ALIVE)
439	return P_IS_ALIVE;	206	return 1;
440		207
441	/* find_first_free_spot() calls this function. However, often	208	/* However, often ob doesn't have any move type
442	* ob doesn't have any move type (when used to place exits)	209	* (signifying non-moving objects)
443	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.	210	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.
444	*/	211	*/
445		212	if (!move_type && ms.move_block != MOVE_ALL)
446	if (ob->move_type == 0 && GET_MAP_MOVE_BLOCK (m1, sx, sy) != MOVE_ALL)
447	continue;	213	continue;
448		214
449	/* Note it is intentional that we check ob - the movement type of the	215	/* Note it is intentional that we check ob - the movement type of the
450	* head of the object should correspond for the entire object.	216	* head of the object should correspond for the entire object.
451	*/	217	*/
452	if (OB_TYPE_MOVE_BLOCK (ob, GET_MAP_MOVE_BLOCK (m1, sx, sy)))	218	if (ms.blocks (move_type))
453	return AB_NO_PASS;	219	return 1;
454
455	}	220	}
		221
456	return 0;	222	return 0;
457	}	223	}
458		224
459	/* When the map is loaded, load_object does not actually insert objects	225	/* When the map is loaded, load_object does not actually insert objects
460	* into inventory, but just links them. What this does is go through	226	* into inventory, but just links them. What this does is go through
461	* and insert them properly.	227	* and insert them properly.
462	* The object 'container' is the object that contains the inventory.	228	* The object 'container' is the object that contains the inventory.
463	* This is needed so that we can update the containers weight.	229	* This is needed so that we can update the containers weight.
464	*/	230	*/
465
466	void	231	void
467	fix_container (object *container)	232	fix_container (object *container)
468	{	233	{
469	object *tmp = container->inv, *next;	234	object *tmp = container->inv, *next;
470		235
471	container->inv = NULL;	236	container->inv = 0;
472	while (tmp != NULL)	237	while (tmp)
473	{	238	{
474	next = tmp->below;	239	next = tmp->below;
475	if (tmp->inv)	240	if (tmp->inv)
476	fix_container (tmp);	241	fix_container (tmp);
		242
477	(void) insert_ob_in_ob (tmp, container);	243	insert_ob_in_ob (tmp, container);
478	tmp = next;	244	tmp = next;
479	}	245	}
		246
480	/* sum_weight will go through and calculate what all the containers are	247	// go through and calculate what all the containers are carrying.
481	* carrying.	248	//TODO: remove
482	*/	249	container->update_weight ();
483	sum_weight (container);	250	}
		251
		252	void
		253	maptile::set_object_flag (int flag, int value)
		254	{
		255	if (!spaces)
		256	return;
		257
		258	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		259	for (object *tmp = ms->bot; tmp; tmp = tmp->above)
		260	tmp->flag [flag] = value;
		261	}
		262
		263	void
		264	maptile::post_load_original ()
		265	{
		266	if (!spaces)
		267	return;
		268
		269	set_object_flag (FLAG_OBJ_ORIGINAL);
		270
		271	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		272	for (object *tmp = ms->bot; tmp; tmp = tmp->above)
		273	INVOKE_OBJECT (RESET, tmp);
484	}	274	}
485		275
486	/* link_multipart_objects go through all the objects on the map looking	276	/* link_multipart_objects go through all the objects on the map looking
487	* for objects whose arch says they are multipart yet according to the	277	* for objects whose arch says they are multipart yet according to the
488	* info we have, they only have the head (as would be expected when	278	* info we have, they only have the head (as would be expected when
489	* they are saved). We do have to look for the old maps that did save	279	* they are saved).
490	* the more sections and not re-add sections for them.
491	*/	280	*/
492		281	void
493	static void	282	maptile::link_multipart_objects ()
494	link_multipart_objects (maptile *m)
495	{	283	{
496	int x, y;	284	if (!spaces)
497	object *tmp, *op, *last, *above;	285	return;
498	archetype *at;
499		286
500	for (x = 0; x < MAP_WIDTH (m); x++)	287	for (mapspace *ms = spaces + size (); ms-- > spaces; )
501	for (y = 0; y < MAP_HEIGHT (m); y++)	288	{
502	for (tmp = get_map_ob (m, x, y); tmp != NULL; tmp = above)	289	object *op = ms->bot;
		290	while (op)
503	{	291	{
504	above = tmp->above;
505
506	/* already multipart - don't do anything more */	292	/* already multipart - don't do anything more */
507	if (tmp->head || tmp->more)	293	if (op->head_ () == op && !op->more && op->arch->more)
508	continue;
509
510	/* If there is nothing more to this object, this for loop
511	* won't do anything.
512	*/
513	for (at = tmp->arch->more, last = tmp; at != NULL; at = at->more, last = op)
514	{	294	{
515	op = arch_to_object (at);	295	op->remove ();
		296	op->expand_tail ();
516		297
517	/* update x,y coordinates */	298	// FIXME: INS_ON_TOP is just a workaround for the pentagram vs.
518	op->x += tmp->x;	299	// multi-tile monster bug, where INS_ABOVE_FLOOR_ONLY put the monsters
519	op->y += tmp->y;	300	// below the pentagrams... hopefully INS_ON_TOP doesn't break anything
520	op->head = tmp;	301	insert (op, op->x, op->y, 0, INS_NO_MERGE | INS_ON_TOP | INS_NO_WALK_ON);
521	op->map = m;	302
522	last->more = op;	303	op = ms->bot; // we are mutating the mapspace too much with INS_ON_TOP
523	op->name = tmp->name;	304	// so we have to reset the iteration through the mapspace
524	op->title = tmp->title;
525	/* we could link all the parts onto tmp, and then just
526	* call insert_ob_in_map once, but the effect is the same,
527	* as insert_ob_in_map will call itself with each part, and
528	* the coding is simpler to just to it here with each part.
529	*/	305	}
530	insert_ob_in_map (op, op->map, tmp, INS_NO_MERGE | INS_ABOVE_FLOOR_ONLY | INS_NO_WALK_ON);	306	else
531	} /* for at = tmp->arch->more */	307	op = op->above;
532	} /* for objects on this space */	308	}
		309	}
533	}	310	}
534		311
535	/*	312	/*
536	* Loads (ands parses) the objects into a given map from the specified	313	* Loads (ands parses) the objects into a given map from the specified
537	* file pointer.	314	* file pointer.
538	* mapflags is the same as we get with load_original_map
539	*/	315	*/
540	void	316	bool
541	load_objects (maptile *m, object_thawer & fp, int mapflags)	317	maptile::_load_objects (object_thawer &f)
542	{	318	{
543	int i, j;	319	for (;;)
544	int unique;
545	object *op, *prev = NULL, *last_more = NULL, *otmp;
546
547	op = get_object ();
548	op->map = m; /* To handle buttons correctly */
549
550	while ((i = load_object (fp, op, mapflags)))
551	{	320	{
552	/* if the archetype for the object is null, means that we	321	coroapi::cede_to_tick (); // cede once in a while
553	* got an invalid object. Don't do anything with it - the game	322
554	* or editor will not be able to do anything with it either.	323	switch (f.kw)
555	*/
556	if (op->arch == NULL)
557	{	324	{
558	LOG (llevDebug, "Discarding object without arch: %s\n", op->name ? (const char *) op->name : "(null)");	325	case KW_arch:
		326	if (object *op = object::read (f, this))
		327	{
		328	// TODO: why?
		329	if (op->inv)
		330	op->update_weight ();
		331
		332	if (IN_RANGE_EXC (op->x, 0, width) && IN_RANGE_EXC (op->y, 0, height))
		333	{
		334	// we insert manually because
		335	// a) its way faster
		336	// b) we remove manually, too, and there are good reasons for that
		337	// c) its correct
		338	mapspace &ms = at (op->x, op->y);
		339
		340	op->flag [FLAG_REMOVED] = false;
		341
		342	op->above = 0;
		343	op->below = ms.top;
		344
		345	if (ms.top)
		346	ms.top->above = op;
		347	else
		348	ms.bot = op;
		349
		350	ms.top = op;
		351	ms.flags_ = 0;
		352	}
		353	else
		354	{
		355	f.parse_warn (format ("object %s out of range", op->debug_desc ()));
		356	op->destroy ();
		357	}
		358	}
		359
559	continue;	360	continue;
		361
		362	case KW_EOF:
		363	return true;
		364
		365	default:
		366	if (!f.parse_error ("map file"))
		367	return false;
		368	break;
560	}	369	}
561		370
		371	f.next ();
		372	}
562		373
563	switch (i)	374	return true;
		375	}
		376
		377	void
		378	maptile::activate ()
		379	{
		380	if (spaces)
		381	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		382	for (object *op = ms->bot; op; op = op->above)
		383	op->activate_recursive ();
		384	}
		385
		386	void
		387	maptile::deactivate ()
		388	{
		389	if (spaces)
		390	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		391	for (object *op = ms->bot; op; op = op->above)
		392	op->deactivate_recursive ();
		393	}
		394
		395	bool
		396	maptile::_save_objects (object_freezer &f, int flags)
		397	{
		398	coroapi::cede_to_tick ();
		399
		400	if (flags & IO_HEADER)
		401	_save_header (f);
		402
		403	if (!spaces)
		404	return false;
		405
		406	for (int i = 0; i < size (); ++i)
		407	{
		408	bool unique = 0;
		409
		410	for (object *op = spaces [i].bot; op; op = op->above)
564	{	411	{
565	case LL_NORMAL:	412	unique |= op->flag [FLAG_UNIQUE] && op->flag [FLAG_IS_FLOOR];
566	/* if we are loading an overlay, put the floors on the bottom */	413
567	if ((QUERY_FLAG (op, FLAG_IS_FLOOR) || QUERY_FLAG (op, FLAG_OVERLAY_FLOOR)) && mapflags & MAP_OVERLAY)	414	if (expect_false (!op->can_map_save ()))
568	insert_ob_in_map (op, m, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ABOVE_FLOOR_ONLY | INS_MAP_LOAD);	415	continue;
		416
		417	if (expect_false (unique || op->flag [FLAG_UNIQUE]))
569	else	418	{
570	insert_ob_in_map (op, m, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ON_TOP | INS_MAP_LOAD);	419	if (flags & IO_UNIQUES)
571		420	op->write (f);
572	if (op->inv)	421	}
573	sum_weight (op);	422	else if (expect_true (flags & IO_OBJECTS))
574		423	op->write (f);
575	prev = op, last_more = op;
576	break;
577
578	case LL_MORE:
579	insert_ob_in_map (op, m, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ABOVE_FLOOR_ONLY);
580	op->head = prev, last_more->more = op, last_more = op;
581	break;
582	}	424	}
583
584	if (mapflags & MAP_STYLE)
585	remove_from_active_list (op);
586
587	op = get_object ();
588	op->map = m;
589	}
590
591	for (i = 0; i < m->width; i++)
592	{	425	}
593	for (j = 0; j < m->height; j++)
594	{
595	unique = 0;
596	/* check for unique items, or unique squares */
597	for (otmp = get_map_ob (m, i, j); otmp; otmp = otmp->above)
598	{
599	if (QUERY_FLAG (otmp, FLAG_UNIQUE) || QUERY_FLAG (otmp, FLAG_OBJ_SAVE_ON_OVL))
600	unique = 1;
601	if (!(mapflags & (MAP_OVERLAY | MAP_PLAYER_UNIQUE) || unique))
602	SET_FLAG (otmp, FLAG_OBJ_ORIGINAL);
603	}
604	}
605	}
606		426
607	free_object (op);	427	coroapi::cede_to_tick ();
608	link_multipart_objects (m);
609	}
610		428
611	/* This saves all the objects on the map in a non destructive fashion.	429	return true;
612	* Modified by MSW 2001-07-01 to do in a single pass - reduces code,
613	* and we only save the head of multi part objects - this is needed
614	* in order to do map tiling properly.
615	*/
616	void
617	save_objects (maptile *m, object_freezer & fp, object_freezer & fp2, int flag)
618	{
619	int i, j = 0, unique = 0;
620	object *op;
621
622	/* first pass - save one-part objects */
623	for (i = 0; i < MAP_WIDTH (m); i++)
624	for (j = 0; j < MAP_HEIGHT (m); j++)
625	{
626	unique = 0;
627	for (op = get_map_ob (m, i, j); op; op = op->above)
628	{
629	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))
630	unique = 1;
631
632	if (op->type == PLAYER)
633	{
634	LOG (llevDebug, "Player on map that is being saved\n");
635	continue;
636	}
637
638	if (op->head || op->owner)
639	continue;
640
641	if (unique || QUERY_FLAG (op, FLAG_UNIQUE))
642	save_object (fp2, op, 3);
643	else if (flag == 0 || (flag == 2 && (!QUERY_FLAG (op, FLAG_OBJ_ORIGINAL) && !QUERY_FLAG (op, FLAG_UNPAID))))
644	save_object (fp, op, 3);
645
646	} /* for this space */
647	} /* for this j */
648	}	430	}
649		431
650	/*	432	bool
651	* Allocates, initialises, and returns a pointer to a maptile.	433	maptile::_save_objects (const char *path, int flags)
652	* Modified to no longer take a path option which was not being
653	* used anyways. MSW 2001-07-01
654	*/
655
656	maptile *
657	get_linked_map (void)
658	{	434	{
659	maptile *map = new maptile;	435	object_freezer freezer;
660	maptile *mp;
661		436
662	for (mp = first_map; mp != NULL && mp->next != NULL; mp = mp->next);	437	if (!_save_objects (freezer, flags))
663	if (mp == NULL)	438	return false;
664	first_map = map;
665	else
666	mp->next = map;
667		439
		440	return freezer.save (path);
		441	}
		442
		443	maptile::maptile ()
		444	{
668	map->in_memory = MAP_SWAPPED;	445	in_memory = MAP_SWAPPED;
		446
669	/* The maps used to pick up default x and y values from the	447	/* The maps used to pick up default x and y values from the
670	* map archetype. Mimic that behaviour.	448	* map archetype. Mimic that behaviour.
671	*/	449	*/
672	MAP_WIDTH (map) = 16;	450	width = 16;
673	MAP_HEIGHT (map) = 16;	451	height = 16;
674	MAP_RESET_TIMEOUT (map) = 0;	452	timeout = 300;
675	MAP_TIMEOUT (map) = 300;	453	max_nrof = 1000; // 1000 items of anything
676	MAP_ENTER_X (map) = 0;	454	max_volume = 2000000; // 2m³
677	MAP_ENTER_Y (map) = 0;	455	}
678	/*set part to -1 indicating conversion to weather map not yet done */	456
679	MAP_WORLDPARTX (map) = -1;	457	maptile::maptile (int w, int h)
680	MAP_WORLDPARTY (map) = -1;	458	{
681	return map;	459	in_memory = MAP_SWAPPED;
		460
		461	width = w;
		462	height = h;
		463	reset_timeout = 0;
		464	timeout = 300;
		465	enter_x = 0;
		466	enter_y = 0;
		467
		468	alloc ();
682	}	469	}
683		470
684	/*	471	/*
685	* Allocates the arrays contained in a maptile.	472	* Allocates the arrays contained in a maptile.
686	* This basically allocates the dynamic array of spaces for the	473	* This basically allocates the dynamic array of spaces for the
687	* map.	474	* map.
688	*/	475	*/
689
690	void	476	void
691	allocate_map (maptile *m)	477	maptile::alloc ()
692	{	478	{
693	m->in_memory = MAP_IN_MEMORY;
694	/* Log this condition and free the storage. We could I suppose
695	* realloc, but if the caller is presuming the data will be intact,
696	* that is their poor assumption.
697	*/
698	if (m->spaces)	479	if (spaces)
699	{
700	LOG (llevError, "allocate_map called with already allocated map (%s)\n", m->path);
701	free (m->spaces);
702	}
703
704	m->spaces = (MapSpace *) calloc (1, MAP_WIDTH (m) * MAP_HEIGHT (m) * sizeof (MapSpace));
705
706	if (m->spaces == NULL)
707	fatal (OUT_OF_MEMORY);
708	}
709
710	/* Create and returns a map of the specific size. Used
711	* in random map code and the editor.
712	*/
713	maptile *
714	get_empty_map (int sizex, int sizey)
715	{
716	maptile *m = get_linked_map ();
717
718	m->width = sizex;
719	m->height = sizey;
720	m->in_memory = MAP_SWAPPED;
721	allocate_map (m);
722	return m;	480	return;
		481
		482	spaces = salloc0<mapspace> (size ());
723	}	483	}
724		484
725	/* Takes a string from a map definition and outputs a pointer to the array of shopitems	485	/* Takes a string from a map definition and outputs a pointer to the array of shopitems
726	* corresponding to that string. Memory is allocated for this, it must be freed	486	* corresponding to that string. Memory is allocated for this, it must be freed
727	* at a later date.	487	* at a later date.
728	* Called by parse_map_headers below.	488	* Called by parse_map_headers below.
729	*/	489	*/
730
731	static shopitems *	490	static shopitems *
732	parse_shop_string (const char *input_string)	491	parse_shop_string (const char *input_string)
733	{	492	{
734	char *shop_string, *p, *q, *next_semicolon, *next_colon;	493	char *shop_string, *p, *q, *next_semicolon, *next_colon;
735	shopitems *items = NULL;	494	shopitems *items = NULL;
736	int i = 0, number_of_entries = 0;	495	int i = 0, number_of_entries = 0;
737	const typedata *current_type;	496	const typedata *current_type;
738		497
739	shop_string = strdup_local (input_string);	498	shop_string = strdup (input_string);
740	p = shop_string;	499	p = shop_string;
741	/* first we'll count the entries, we'll need that for allocating the array shortly */	500	/* first we'll count the entries, we'll need that for allocating the array shortly */
742	while (p)	501	while (p)
743	{	502	{
744	p = strchr (p, ';');	503	p = strchr (p, ';');
745	number_of_entries++;	504	number_of_entries++;
746	if (p)	505	if (p)
747	p++;	506	p++;
748	}	507	}
		508
749	p = shop_string;	509	p = shop_string;
750	strip_endline (p);	510	strip_endline (p);
751	items = new shopitems[number_of_entries + 1];	511	items = new shopitems[number_of_entries + 1];
752	for (i = 0; i < number_of_entries; i++)	512	for (i = 0; i < number_of_entries; i++)
753	{	513	{
754	if (!p)	514	if (!p)
755	{	515	{
756	LOG (llevError, "parse_shop_string: I seem to have run out of string, that shouldn't happen.\n");	516	LOG (llevError, "parse_shop_string: I seem to have run out of string, that shouldn't happen.\n");
757	break;	517	break;
758	}	518	}
		519
759	next_semicolon = strchr (p, ';');	520	next_semicolon = strchr (p, ';');
760	next_colon = strchr (p, ':');	521	next_colon = strchr (p, ':');
761	/* if there is a stregth specified, figure out what it is, we'll need it soon. */	522	/* if there is a stregth specified, figure out what it is, we'll need it soon. */
762	if (next_colon && (!next_semicolon || next_colon < next_semicolon))	523	if (next_colon && (!next_semicolon || next_colon < next_semicolon))
763	items[i].strength = atoi (strchr (p, ':') + 1);	524	items[i].strength = atoi (strchr (p, ':') + 1);
…		…
790	* the next entry while we're at it, better print a warning	551	* the next entry while we're at it, better print a warning
791	*/	552	*/
792	LOG (llevError, "invalid type %s defined in shopitems in string %s\n", p, input_string);	553	LOG (llevError, "invalid type %s defined in shopitems in string %s\n", p, input_string);
793	}	554	}
794	}	555	}
		556
795	items[i].index = number_of_entries;	557	items[i].index = number_of_entries;
796	if (next_semicolon)	558	if (next_semicolon)
797	p = ++next_semicolon;	559	p = ++next_semicolon;
798	else	560	else
799	p = NULL;	561	p = NULL;
800	}	562	}
		563
801	free (shop_string);	564	free (shop_string);
802	return items;	565	return items;
803	}	566	}
804		567
805	/* opposite of parse string, this puts the string that was originally fed in to	568	/* opposite of parse string, this puts the string that was originally fed in to
…		…
814	for (i = 0; i < m->shopitems[0].index; i++)	577	for (i = 0; i < m->shopitems[0].index; i++)
815	{	578	{
816	if (m->shopitems[i].typenum)	579	if (m->shopitems[i].typenum)
817	{	580	{
818	if (m->shopitems[i].strength)	581	if (m->shopitems[i].strength)
819	{
820	sprintf (tmp, "%s:%d;", m->shopitems[i].name, m->shopitems[i].strength);	582	sprintf (tmp, "%s:%d;", m->shopitems[i].name, m->shopitems[i].strength);
821	}
822	else	583	else
823	sprintf (tmp, "%s;", m->shopitems[i].name);	584	sprintf (tmp, "%s;", m->shopitems[i].name);
824	}	585	}
825	else	586	else
826	{	587	{
827	if (m->shopitems[i].strength)	588	if (m->shopitems[i].strength)
828	{
829	sprintf (tmp, "*:%d;", m->shopitems[i].strength);	589	sprintf (tmp, "*:%d;", m->shopitems[i].strength);
830	}
831	else	590	else
832	sprintf (tmp, "*");	591	sprintf (tmp, "*");
833	}	592	}
		593
834	strcat (output_string, tmp);	594	strcat (output_string, tmp);
835	}	595	}
836	}	596	}
837		597
838	/* This loads the header information of the map. The header	598	/* This loads the header information of the map. The header
…		…
843	* put all the stuff in the map object so that names actually make	603	* put all the stuff in the map object so that names actually make
844	* sense.	604	* sense.
845	* This could be done in lex (like the object loader), but I think	605	* This could be done in lex (like the object loader), but I think
846	* currently, there are few enough fields this is not a big deal.	606	* currently, there are few enough fields this is not a big deal.
847	* MSW 2001-07-01	607	* MSW 2001-07-01
848	* return 0 on success, 1 on failure.
849	*/	608	*/
850		609	bool
851	static int	610	maptile::_load_header (object_thawer &thawer)
852	load_map_header (object_thawer & fp, maptile *m)
853	{	611	{
854	char buf[HUGE_BUF], msgbuf[HUGE_BUF], maplorebuf[HUGE_BUF], *key = NULL, *value, *end;	612	for (;;)
855	int msgpos = 0;
856	int maplorepos = 0;
857
858	while (fgets (buf, HUGE_BUF - 1, fp) != NULL)
859	{	613	{
860	buf[HUGE_BUF - 1] = 0;	614	switch (thawer.kw)
861	key = buf;
862	while (isspace (*key))
863	key++;
864	if (*key == 0)
865	continue; /* empty line */
866	value = strchr (key, ' ');
867	if (!value)
868	{	615	{
869	end = strchr (key, '\n');	616	case KW_msg:
870	if (end != NULL)	617	thawer.get_ml (KW_endmsg, msg);
871	{	618	break;
872	*end = 0;	619
		620	case KW_lore: // CF+ extension
		621	thawer.get_ml (KW_endlore, maplore);
873	}	622	break;
		623
		624	case KW_maplore:
		625	thawer.get_ml (KW_endmaplore, maplore);
		626	break;
		627
		628	case KW_arch:
		629	if (strcmp (thawer.get_str (), "map"))
		630	LOG (llevError, "%s: loading map and got a non 'arch map' line (arch %s), skipping.\n", &path, thawer.get_str ());
		631	break;
		632
		633	case KW_oid:
		634	thawer.get (this, thawer.get_sint32 ());
		635	break;
		636
		637	case KW_file_format_version: break; // nop
		638
		639	case KW_name: thawer.get (name); break;
		640	case KW_attach: thawer.get (attach); break;
		641	case KW_reset_time: thawer.get (reset_time); break;
		642	case KW_shopgreed: thawer.get (shopgreed); break;
		643	case KW_shopmin: thawer.get (shopmin); break;
		644	case KW_shopmax: thawer.get (shopmax); break;
		645	case KW_shoprace: thawer.get (shoprace); break;
		646	case KW_outdoor: thawer.get (outdoor); break;
		647	case KW_temp: thawer.get (temp); break;
		648	case KW_pressure: thawer.get (pressure); break;
		649	case KW_humid: thawer.get (humid); break;
		650	case KW_windspeed: thawer.get (windspeed); break;
		651	case KW_winddir: thawer.get (winddir); break;
		652	case KW_sky: thawer.get (sky); break;
		653
		654	case KW_per_player: thawer.get (per_player); break;
		655	case KW_per_party: thawer.get (per_party); break;
		656	case KW_no_reset: thawer.get (no_reset); break;
		657	case KW_no_drop: thawer.get (no_drop); break;
		658
		659	case KW_region: default_region = region::find (thawer.get_str ()); break;
		660	case KW_shopitems: shopitems = parse_shop_string (thawer.get_str ()); break;
		661
		662	// old names new names
		663	case KW_hp: case KW_enter_x: thawer.get (enter_x); break;
		664	case KW_sp: case KW_enter_y: thawer.get (enter_y); break;
		665	case KW_x: case KW_width: thawer.get (width); break;
		666	case KW_y: case KW_height: thawer.get (height); break;
		667	case KW_weight: case KW_reset_timeout: thawer.get (reset_timeout); break;
		668	case KW_value: case KW_swap_time: thawer.get (timeout); break;
		669	case KW_level: case KW_difficulty: thawer.get (difficulty); difficulty = clamp (difficulty, 1, settings.max_level); break;
		670	case KW_invisible: case KW_darkness: thawer.get (darkness); break;
		671	case KW_stand_still: case KW_fixed_resettime: thawer.get (fixed_resettime); break;
		672
		673	case KW_tile_path_1: thawer.get (tile_path [0]); break;
		674	case KW_tile_path_2: thawer.get (tile_path [1]); break;
		675	case KW_tile_path_3: thawer.get (tile_path [2]); break;
		676	case KW_tile_path_4: thawer.get (tile_path [3]); break;
		677
		678	case KW_ERROR:
		679	set_key_text (thawer.kw_str, thawer.value);
		680	break;
		681
		682	case KW_end:
		683	thawer.next ();
		684	return true;
		685
		686	default:
		687	if (!thawer.parse_error ("map", 0))
		688	return false;
		689	break;
874	}	690	}
875	else
876	{
877	*value = 0;
878	value++;
879	end = strchr (value, '\n');
880	while (isspace (*value))
881	{
882	value++;
883	if (*value == '\0' || value == end)
884	{
885	/* Nothing but spaces. */
886	value = NULL;
887	break;
888	}
889	}
890	}
891		691
892	if (!end)	692	thawer.next ();
893	{
894	LOG (llevError, "Error loading map header - did not find a newline - perhaps file is truncated? Buf=%s\n", buf);
895	return 1;
896	}
897
898	/* key is the field name, value is what it should be set
899	* to. We've already done the work to null terminate key,
900	* and strip off any leading spaces for both of these.
901	* We have not touched the newline at the end of the line -
902	* these are needed for some values. the end pointer
903	* points to the first of the newlines.
904	* value could be NULL! It would be easy enough to just point
905	* this to "" to prevent cores, but that would let more errors slide
906	* through.
907	*
908	* First check for entries that do not use the value parameter, then
909	* validate that value is given and check for the remaining entries
910	* that use the parameter.
911	*/
912
913	if (!strcmp (key, "msg"))
914	{
915	while (fgets (buf, HUGE_BUF - 1, fp) != NULL)
916	{
917	if (!strcmp (buf, "endmsg\n"))
918	break;
919	else
920	{
921	/* slightly more efficient than strcat */
922	strcpy (msgbuf + msgpos, buf);
923	msgpos += strlen (buf);
924	}
925	}
926	/* There are lots of maps that have empty messages (eg, msg/endmsg
927	* with nothing between). There is no reason in those cases to
928	* keep the empty message. Also, msgbuf contains garbage data
929	* when msgpos is zero, so copying it results in crashes
930	*/
931	if (msgpos != 0)
932	m->msg = strdup_local (msgbuf);
933	}
934	else if (!strcmp (key, "maplore"))
935	{
936	while (fgets (buf, HUGE_BUF - 1, fp) != NULL)
937	{
938	if (!strcmp (buf, "endmaplore\n"))
939	break;
940	else
941	{
942	/* slightly more efficient than strcat */
943	strcpy (maplorebuf + maplorepos, buf);
944	maplorepos += strlen (buf);
945	}
946	}
947	if (maplorepos != 0)
948	m->maplore = strdup_local (maplorebuf);
949	}
950	else if (!strcmp (key, "end"))
951	{
952	break;
953	}
954	else if (value == NULL)
955	{
956	LOG (llevError, "Got '%s' line without parameter in map header\n", key);
957	}
958	else if (!strcmp (key, "arch"))
959	{
960	/* This is an oddity, but not something we care about much. */
961	if (strcmp (value, "map\n"))
962	LOG (llevError, "loading map and got a non 'arch map' line(%s %s)?\n", key, value);
963	}
964	else if (!strcmp (key, "name"))
965	{
966	*end = 0;
967	m->name = strdup_local (value);
968	}
969	/* first strcmp value on these are old names supported
970	* for compatibility reasons. The new values (second) are
971	* what really should be used.
972	*/
973	else if (!strcmp (key, "oid"))
974	{
975	fp.get (m, atoi (value));
976	}
977	else if (!strcmp (key, "attach"))
978	{
979	m->attach = value;
980	}
981	else if (!strcmp (key, "hp") || !strcmp (key, "enter_x"))
982	{
983	m->enter_x = atoi (value);
984	}
985	else if (!strcmp (key, "sp") || !strcmp (key, "enter_y"))
986	{
987	m->enter_y = atoi (value);
988	}
989	else if (!strcmp (key, "x") || !strcmp (key, "width"))
990	{
991	m->width = atoi (value);
992	}
993	else if (!strcmp (key, "y") || !strcmp (key, "height"))
994	{
995	m->height = atoi (value);
996	}
997	else if (!strcmp (key, "weight") || !strcmp (key, "reset_timeout"))
998	{
999	m->reset_timeout = atoi (value);
1000	}
1001	else if (!strcmp (key, "value") || !strcmp (key, "swap_time"))
1002	{
1003	m->timeout = atoi (value);
1004	}
1005	else if (!strcmp (key, "level") || !strcmp (key, "difficulty"))
1006	{
1007	m->difficulty = atoi (value);
1008	}
1009	else if (!strcmp (key, "invisible") || !strcmp (key, "darkness"))
1010	{
1011	m->darkness = atoi (value);
1012	}
1013	else if (!strcmp (key, "stand_still") || !strcmp (key, "fixed_resettime"))
1014	{
1015	m->fixed_resettime = atoi (value);
1016	}
1017	else if (!strcmp (key, "unique"))
1018	{
1019	m->unique = atoi (value);
1020	}
1021	else if (!strcmp (key, "template"))
1022	{
1023	m->templatemap = atoi (value);
1024	}
1025	else if (!strcmp (key, "region"))
1026	{
1027	m->region = get_region_by_name (value);
1028	}
1029	else if (!strcmp (key, "shopitems"))
1030	{
1031	*end = 0;
1032	m->shopitems = parse_shop_string (value);
1033	}
1034	else if (!strcmp (key, "shopgreed"))
1035	{
1036	m->shopgreed = atof (value);
1037	}
1038	else if (!strcmp (key, "shopmin"))
1039	{
1040	m->shopmin = atol (value);
1041	}
1042	else if (!strcmp (key, "shopmax"))
1043	{
1044	m->shopmax = atol (value);
1045	}
1046	else if (!strcmp (key, "shoprace"))
1047	{
1048	*end = 0;
1049	m->shoprace = strdup_local (value);
1050	}
1051	else if (!strcmp (key, "outdoor"))
1052	{
1053	m->outdoor = atoi (value);
1054	}
1055	else if (!strcmp (key, "temp"))
1056	{
1057	m->temp = atoi (value);
1058	}
1059	else if (!strcmp (key, "pressure"))
1060	{
1061	m->pressure = atoi (value);
1062	}
1063	else if (!strcmp (key, "humid"))
1064	{
1065	m->humid = atoi (value);
1066	}
1067	else if (!strcmp (key, "windspeed"))
1068	{
1069	m->windspeed = atoi (value);
1070	}
1071	else if (!strcmp (key, "winddir"))
1072	{
1073	m->winddir = atoi (value);
1074	}
1075	else if (!strcmp (key, "sky"))
1076	{
1077	m->sky = atoi (value);
1078	}
1079	else if (!strcmp (key, "nosmooth"))
1080	{
1081	m->nosmooth = atoi (value);
1082	}
1083	else if (!strncmp (key, "tile_path_", 10))
1084	{
1085	int tile = atoi (key + 10);
1086
1087	if (tile < 1 || tile > 4)
1088	{
1089	LOG (llevError, "load_map_header: tile location %d out of bounds (%s)\n", tile, m->path);
1090	}
1091	else
1092	{
1093	char *path;
1094
1095	*end = 0;
1096
1097	if (m->tile_path[tile - 1])
1098	{
1099	LOG (llevError, "load_map_header: tile location %d duplicated (%s)\n", tile, m->path);
1100	free (m->tile_path[tile - 1]);
1101	m->tile_path[tile - 1] = NULL;
1102	}
1103
1104	if (check_path (value, 1) != -1)
1105	{
1106	/* The unadorned path works. */
1107	path = value;
1108	}
1109	else
1110	{
1111	/* Try again; it could be a relative exit. */
1112
1113	path = path_combine_and_normalize (m->path, value);
1114
1115	if (check_path (path, 1) == -1)
1116	{
1117	LOG (llevError, "get_map_header: Bad tile path %s %s\n", m->path, value);
1118	path = NULL;
1119	}
1120	}
1121
1122	if (editor)
1123	{
1124	/* Use the value as in the file. */
1125	m->tile_path[tile - 1] = strdup_local (value);
1126	}
1127	else if (path != NULL)
1128	{
1129	/* Use the normalized value. */
1130	m->tile_path[tile - 1] = strdup_local (path);
1131	}
1132	} /* end if tile direction (in)valid */
1133	}
1134	else
1135	{
1136	LOG (llevError, "Got unknown value in map header: %s %s\n", key, value);
1137	}
1138	}
1139	if (!key || strcmp (key, "end"))
1140	{	693	}
1141	LOG (llevError, "Got premature eof on map header!\n");
1142	return 1;
1143	}
1144	return 0;
1145	}
1146		694
1147	/*	695	abort ();
1148	* Opens the file "filename" and reads information about the map
1149	* from the given file, and stores it in a newly allocated
1150	* maptile. A pointer to this structure is returned, or NULL on failure.
1151	* flags correspond to those in map.h. Main ones used are
1152	* MAP_PLAYER_UNIQUE, in which case we don't do any name changes, and
1153	* MAP_BLOCK, in which case we block on this load. This happens in all
1154	* cases, no matter if this flag is set or not.
1155	* MAP_STYLE: style map - don't add active objects, don't add to server
1156	* managed map list.
1157	*/
1158
1159	maptile *
1160	load_original_map (const char *filename, int flags)
1161	{
1162	maptile *m;
1163	char pathname[MAX_BUF];
1164
1165	if (flags & MAP_PLAYER_UNIQUE)
1166	strcpy (pathname, filename);
1167	else if (flags & MAP_OVERLAY)
1168	strcpy (pathname, create_overlay_pathname (filename));
1169	else
1170	strcpy (pathname, create_pathname (filename));
1171
1172	LOG (llevDebug, "load_original_map(%x): %s (%s)\n", flags, filename, pathname);
1173
1174	object_thawer thawer (pathname);
1175
1176	if (!thawer)
1177	return 0;
1178
1179	m = get_linked_map ();
1180
1181	strcpy (m->path, filename);
1182	if (load_map_header (thawer, m))
1183	{
1184	LOG (llevError, "Error loading map header for %s, flags=%d\n", filename, flags);
1185	delete_map (m);
1186	return NULL;
1187	}
1188
1189	allocate_map (m);
1190
1191	m->in_memory = MAP_LOADING;
1192	load_objects (m, thawer, flags & (MAP_BLOCK | MAP_STYLE));
1193
1194	m->in_memory = MAP_IN_MEMORY;
1195	if (!MAP_DIFFICULTY (m))
1196	MAP_DIFFICULTY (m) = calculate_difficulty (m);
1197	set_map_reset_time (m);
1198	m->instantiate ();
1199	return (m);
1200	}
1201
1202	/*
1203	* Loads a map, which has been loaded earlier, from file.
1204	* Return the map object we load into (this can change from the passed
1205	* option if we can't find the original map)
1206	*/
1207
1208	static maptile *
1209	load_temporary_map (maptile *m)
1210	{
1211	char buf[MAX_BUF];
1212
1213	if (!m->tmpname)
1214	{
1215	LOG (llevError, "No temporary filename for map %s\n", m->path);
1216	strcpy (buf, m->path);
1217	delete_map (m);
1218	m = load_original_map (buf, 0);
1219	if (m == NULL)
1220	return NULL;
1221	fix_auto_apply (m); /* Chests which open as default */
1222	return m;
1223	}
1224
1225	object_thawer thawer (m->tmpname);
1226
1227	if (!thawer)
1228	{
1229	strcpy (buf, m->path);
1230	delete_map (m);
1231	m = load_original_map (buf, 0);
1232	if (!m)
1233	return NULL;
1234	fix_auto_apply (m); /* Chests which open as default */
1235	return m;
1236	}
1237
1238	if (load_map_header (thawer, m))
1239	{
1240	LOG (llevError, "Error loading map header for %s (%s)\n", m->path, m->tmpname);
1241	delete_map (m);
1242	m = load_original_map (m->path, 0);
1243	return NULL;
1244	}
1245	allocate_map (m);
1246
1247	m->in_memory = MAP_LOADING;
1248	load_objects (m, thawer, 0);
1249
1250	m->in_memory = MAP_IN_MEMORY;
1251	INVOKE_MAP (SWAPIN, m);
1252	return m;
1253	}
1254
1255	/*
1256	* Loads a map, which has been loaded earlier, from file.
1257	* Return the map object we load into (this can change from the passed
1258	* option if we can't find the original map)
1259	*/
1260
1261	maptile *
1262	load_overlay_map (const char *filename, maptile *m)
1263	{
1264	char pathname[MAX_BUF];
1265
1266	strcpy (pathname, create_overlay_pathname (filename));
1267
1268	object_thawer thawer (pathname);
1269
1270	if (!thawer)
1271	return m;
1272
1273	if (load_map_header (thawer, m))
1274	{
1275	LOG (llevError, "Error loading map header for overlay %s (%s)\n", m->path, pathname);
1276	delete_map (m);
1277	m = load_original_map (m->path, 0);
1278	return NULL;
1279	}
1280	/*allocate_map(m); */
1281
1282	m->in_memory = MAP_LOADING;
1283	load_objects (m, thawer, MAP_OVERLAY);
1284
1285	m->in_memory = MAP_IN_MEMORY;
1286	return m;
1287	}	696	}
1288		697
1289	/******************************************************************************	698	/******************************************************************************
1290	* This is the start of unique map handling code	699	* This is the start of unique map handling code
1291	*****************************************************************************/	700	*****************************************************************************/
1292		701
1293	/* This goes through map 'm' and removed any unique items on the map. */	702	/* This goes through the maptile and removed any unique items on the map. */
1294	static void	703	void
1295	delete_unique_items (maptile *m)	704	maptile::clear_unique_items ()
1296	{	705	{
1297	int i, j, unique;	706	for (int i = 0; i < size (); ++i)
1298	object *op, *next;
1299
1300	for (i = 0; i < MAP_WIDTH (m); i++)
1301	for (j = 0; j < MAP_HEIGHT (m); j++)
1302	{	707	{
1303	unique = 0;	708	int unique = 0;
1304	for (op = get_map_ob (m, i, j); op; op = next)	709	for (object *op = spaces [i].bot; op; )
		710	{
		711	object *above = op->above;
		712
		713	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))
		714	unique = 1;
		715
		716	if (op->head_ () == op && (QUERY_FLAG (op, FLAG_UNIQUE) || unique))
		717	{
		718	op->destroy_inv (false);
		719	op->destroy ();
		720	}
		721
		722	op = above;
		723	}
		724	}
		725	}
		726
		727	bool
		728	maptile::_save_header (object_freezer &freezer)
		729	{
		730	#define MAP_OUT(k) freezer.put (KW_ ## k, k)
		731	#define MAP_OUT2(k,v) freezer.put (KW_ ## k, v)
		732
		733	MAP_OUT2 (arch, "map");
		734
		735	if (name) MAP_OUT (name);
		736	MAP_OUT (swap_time);
		737	MAP_OUT (reset_time);
		738	MAP_OUT (reset_timeout);
		739	MAP_OUT (fixed_resettime);
		740	MAP_OUT (no_reset);
		741	MAP_OUT (no_drop);
		742	MAP_OUT (difficulty);
		743
		744	if (default_region) MAP_OUT2 (region, default_region->name);
		745
		746	if (shopitems)
		747	{
		748	char shop[MAX_BUF];
		749	print_shop_string (this, shop);
		750	MAP_OUT2 (shopitems, shop);
		751	}
		752
		753	MAP_OUT (shopgreed);
		754	MAP_OUT (shopmin);
		755	MAP_OUT (shopmax);
		756	if (shoprace) MAP_OUT (shoprace);
		757	MAP_OUT (darkness);
		758	MAP_OUT (width);
		759	MAP_OUT (height);
		760	MAP_OUT (enter_x);
		761	MAP_OUT (enter_y);
		762
		763	if (msg) freezer.put (KW_msg , KW_endmsg , msg);
		764	if (maplore) freezer.put (KW_maplore, KW_endmaplore, maplore);
		765
		766	MAP_OUT (outdoor);
		767	MAP_OUT (temp);
		768	MAP_OUT (pressure);
		769	MAP_OUT (humid);
		770	MAP_OUT (windspeed);
		771	MAP_OUT (winddir);
		772	MAP_OUT (sky);
		773
		774	MAP_OUT (per_player);
		775	MAP_OUT (per_party);
		776
		777	if (tile_path [0]) MAP_OUT2 (tile_path_1, tile_path [0]);
		778	if (tile_path [1]) MAP_OUT2 (tile_path_2, tile_path [1]);
		779	if (tile_path [2]) MAP_OUT2 (tile_path_3, tile_path [2]);
		780	if (tile_path [3]) MAP_OUT2 (tile_path_4, tile_path [3]);
		781
		782	freezer.put (this);
		783	freezer.put (KW_end);
		784
		785	return true;
		786	}
		787
		788	bool
		789	maptile::_save_header (const char *path)
		790	{
		791	object_freezer freezer;
		792
		793	if (!_save_header (freezer))
		794	return false;
		795
		796	return freezer.save (path);
		797	}
		798
		799	/*
		800	* Remove and free all objects in the given map.
		801	*/
		802	void
		803	maptile::clear ()
		804	{
		805	if (spaces)
		806	{
		807	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		808	while (object *op = ms->bot)
1305	{	809	{
		810	// manually remove, as to not trigger anything
1306	next = op->above;	811	if (ms->bot = op->above)
1307	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))	812	ms->bot->below = 0;
1308	unique = 1;	813
1309	if (op->head == NULL && (QUERY_FLAG (op, FLAG_UNIQUE) || unique))	814	op->flag [FLAG_REMOVED] = true;
		815
		816	object *head = op->head_ ();
		817	if (op == head)
1310	{	818	{
1311	clean_object (op);	819	op->destroy_inv (false);
1312	if (QUERY_FLAG (op, FLAG_IS_LINKED))	820	op->destroy ();
1313	remove_button_link (op);	821	}
1314	remove_ob (op);	822	else if (head->map != op->map)
1315	free_object (op);	823	{
		824	LOG (llevDebug, "bad luck for object crossing map borders: %s", head->debug_desc ());
		825	head->destroy ();
1316	}	826	}
1317	}	827	}
		828
		829	sfree0 (spaces, size ());
		830	}
		831
		832	if (buttons)
		833	free_objectlinkpt (buttons), buttons = 0;
		834
		835	sfree0 (regions, size ());
		836	delete [] regionmap; regionmap = 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)
		887	{
		888	above = op->above;
		889
		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_UNIQUE)
		899	|| QUERY_FLAG (op, FLAG_OVERLAY_FLOOR)
		900	|| QUERY_FLAG (op, FLAG_UNPAID)
		901	|| op->is_alive ())
		902	; // do not decay
		903	else if (op->is_weapon ())
		904	{
		905	op->stats.dam--;
		906	if (op->stats.dam < 0)
		907	destroy = 1;
		908	}
		909	else if (op->is_armor ())
		910	{
		911	op->stats.ac--;
		912	if (op->stats.ac < 0)
		913	destroy = 1;
		914	}
		915	else if (op->type == FOOD)
		916	{
		917	op->stats.food -= rndm (5, 20);
		918	if (op->stats.food < 0)
		919	destroy = 1;
		920	}
		921	else
		922	{
		923	int mat = op->materials;
		924
		925	if (mat & M_PAPER
		926	|| mat & M_LEATHER
		927	|| mat & M_WOOD
		928	|| mat & M_ORGANIC
		929	|| mat & M_CLOTH
		930	|| mat & M_LIQUID
		931	|| (mat & M_IRON && rndm (1, 5) == 1)
		932	|| (mat & M_GLASS && rndm (1, 2) == 1)
		933	|| ((mat & M_STONE || mat & M_ADAMANT) && rndm (1, 10) == 1)
		934	|| ((mat & M_SOFT_METAL || mat & M_BONE) && rndm (1, 3) == 1)
		935	|| (mat & M_ICE && temp > 32))
		936	destroy = 1;
		937	}
		938
		939	/* adjust overall chance below */
		940	if (destroy && rndm (0, 1))
		941	op->destroy ();
1318	}	942	}
1319	}	943	}
1320		944
1321
1322	/*	945	/*
1323	* Loads unique objects from file(s) into the map which is in memory	946	* Updates every button on the map (by calling update_button() for them).
1324	* m is the map to load unique items into.
1325	*/
1326	static void
1327	load_unique_objects (maptile *m)
1328	{
1329	int count;
1330	char firstname[MAX_BUF];
1331
1332	for (count = 0; count < 10; count++)
1333	{
1334	sprintf (firstname, "%s.v%02d", create_items_path (m->path), count);
1335	if (!access (firstname, R_OK))
1336	break;
1337	}
1338	/* If we get here, we did not find any map */
1339	if (count == 10)
1340	return;
1341
1342	object_thawer thawer (firstname);
1343
1344	if (!thawer)
1345	return;
1346
1347	m->in_memory = MAP_LOADING;
1348	if (m->tmpname == NULL) /* if we have loaded unique items from */
1349	delete_unique_items (m); /* original map before, don't duplicate them */
1350	load_objects (m, thawer, 0);
1351
1352	m->in_memory = MAP_IN_MEMORY;
1353	}
1354
1355
1356	/*
1357	* Saves a map to file. If flag is set, it is saved into the same
1358	* file it was (originally) loaded from. Otherwise a temporary
1359	* filename will be genarated, and the file will be stored there.
1360	* The temporary filename will be stored in the maptileure.
1361	* If the map is unique, we also save to the filename in the map
1362	* (this should have been updated when first loaded)
1363	*/
1364
1365	int
1366	new_save_map (maptile *m, int flag)
1367	{
1368	char filename[MAX_BUF], buf[MAX_BUF], shop[MAX_BUF];
1369	int i;
1370
1371	if (flag && !*m->path)
1372	{
1373	LOG (llevError, "Tried to save map without path.\n");
1374	return -1;
1375	}
1376
1377	if (flag || (m->unique) || (m->templatemap))
1378	{
1379	if (!m->unique && !m->templatemap)
1380	{ /* flag is set */
1381	if (flag == 2)
1382	strcpy (filename, create_overlay_pathname (m->path));
1383	else
1384	strcpy (filename, create_pathname (m->path));
1385	}
1386	else
1387	strcpy (filename, m->path);
1388
1389	make_path_to_file (filename);
1390	}
1391	else
1392	{
1393	if (!m->tmpname)
1394	m->tmpname = tempnam_local (settings.tmpdir, NULL);
1395
1396	strcpy (filename, m->tmpname);
1397	}
1398
1399	LOG (llevDebug, "Saving map %s to %s\n", m->path, filename);
1400	m->in_memory = MAP_SAVING;
1401
1402	object_freezer freezer;
1403
1404	/* legacy */
1405	fprintf (freezer, "arch map\n");
1406	if (m->name)
1407	fprintf (freezer, "name %s\n", m->name);
1408	if (!flag)
1409	fprintf (freezer, "swap_time %d\n", m->swap_time);
1410	if (m->reset_timeout)
1411	fprintf (freezer, "reset_timeout %d\n", m->reset_timeout);
1412	if (m->fixed_resettime)
1413	fprintf (freezer, "fixed_resettime %d\n", m->fixed_resettime);
1414	/* we unfortunately have no idea if this is a value the creator set
1415	* or a difficulty value we generated when the map was first loaded
1416	*/	947	*/
1417	if (m->difficulty)
1418	fprintf (freezer, "difficulty %d\n", m->difficulty);
1419	if (m->region)
1420	fprintf (freezer, "region %s\n", m->region->name);
1421	if (m->shopitems)
1422	{
1423	print_shop_string (m, shop);
1424	fprintf (freezer, "shopitems %s\n", shop);
1425	}
1426	if (m->shopgreed)
1427	fprintf (freezer, "shopgreed %f\n", m->shopgreed);
1428	#ifndef WIN32
1429	if (m->shopmin)
1430	fprintf (freezer, "shopmin %llu\n", m->shopmin);
1431	if (m->shopmax)
1432	fprintf (freezer, "shopmax %llu\n", m->shopmax);
1433	#else
1434	if (m->shopmin)
1435	fprintf (freezer, "shopmin %I64u\n", m->shopmin);
1436	if (m->shopmax)
1437	fprintf (freezer, "shopmax %I64u\n", m->shopmax);
1438	#endif
1439	if (m->shoprace)
1440	fprintf (freezer, "shoprace %s\n", m->shoprace);
1441	if (m->darkness)
1442	fprintf (freezer, "darkness %d\n", m->darkness);
1443	if (m->width)
1444	fprintf (freezer, "width %d\n", m->width);
1445	if (m->height)
1446	fprintf (freezer, "height %d\n", m->height);
1447	if (m->enter_x)
1448	fprintf (freezer, "enter_x %d\n", m->enter_x);
1449	if (m->enter_y)
1450	fprintf (freezer, "enter_y %d\n", m->enter_y);
1451	if (m->msg)
1452	fprintf (freezer, "msg\n%sendmsg\n", m->msg);
1453	if (m->maplore)
1454	fprintf (freezer, "maplore\n%sendmaplore\n", m->maplore);
1455	if (m->unique)
1456	fprintf (freezer, "unique %d\n", m->unique);
1457	if (m->templatemap)
1458	fprintf (freezer, "template %d\n", m->templatemap);
1459	if (m->outdoor)
1460	fprintf (freezer, "outdoor %d\n", m->outdoor);
1461	if (m->temp)
1462	fprintf (freezer, "temp %d\n", m->temp);
1463	if (m->pressure)
1464	fprintf (freezer, "pressure %d\n", m->pressure);
1465	if (m->humid)
1466	fprintf (freezer, "humid %d\n", m->humid);
1467	if (m->windspeed)
1468	fprintf (freezer, "windspeed %d\n", m->windspeed);
1469	if (m->winddir)
1470	fprintf (freezer, "winddir %d\n", m->winddir);
1471	if (m->sky)
1472	fprintf (freezer, "sky %d\n", m->sky);
1473	if (m->nosmooth)
1474	fprintf (freezer, "nosmooth %d\n", m->nosmooth);
1475
1476	/* Save any tiling information, except on overlays */
1477	if (flag != 2)
1478	for (i = 0; i < 4; i++)
1479	if (m->tile_path[i])
1480	fprintf (freezer, "tile_path_%d %s\n", i + 1, m->tile_path[i]);
1481
1482	freezer.put (m);
1483	fprintf (freezer, "end\n");
1484
1485	/* In the game save unique items in the different file, but
1486	* in the editor save them to the normal map file.
1487	* If unique map, save files in the proper destination (set by
1488	* player)
1489	*/
1490	if ((flag == 0 || flag == 2) && !m->unique && !m->templatemap)
1491	{
1492	object_freezer unique;
1493
1494	if (flag == 2)
1495	save_objects (m, freezer, unique, 2);
1496	else
1497	save_objects (m, freezer, unique, 0);
1498
1499	sprintf (buf, "%s.v00", create_items_path (m->path));
1500
1501	unique.save (buf);
1502	}
1503	else
1504	{ /* save same file when not playing, like in editor */
1505	save_objects (m, freezer, freezer, 0);
1506	}
1507
1508	freezer.save (filename);
1509
1510	return 0;
1511	}
1512
1513
1514	/*
1515	* Remove and free all objects in the inventory of the given object.
1516	* object.c ?
1517	*/
1518
1519	void	948	void
1520	clean_object (object *op)	949	maptile::update_buttons ()
1521	{	950	{
1522	object *tmp, *next;	951	for (oblinkpt *obp = buttons; obp; obp = obp->next)
1523		952	for (objectlink *ol = obp->link; ol; ol = ol->next)
1524	for (tmp = op->inv; tmp; tmp = next)
1525	{
1526	next = tmp->below;
1527	clean_object (tmp);
1528	if (QUERY_FLAG (tmp, FLAG_IS_LINKED))
1529	remove_button_link (tmp);
1530	remove_ob (tmp);
1531	free_object (tmp);
1532	}
1533	}
1534
1535	/*
1536	* Remove and free all objects in the given map.
1537	*/
1538
1539	void
1540	free_all_objects (maptile *m)
1541	{
1542	int i, j;
1543	object *op;
1544
1545	for (i = 0; i < MAP_WIDTH (m); i++)
1546	for (j = 0; j < MAP_HEIGHT (m); j++)
1547	{	953	{
1548	object *previous_obj = NULL;	954	if (!ol->ob)
1549
1550	while ((op = GET_MAP_OB (m, i, j)) != NULL)
1551	{	955	{
1552	if (op == previous_obj)	956	LOG (llevError, "Internal error in update_button (%s (%dx%d), connected %ld).\n",
		957	ol->ob ? (const char *) ol->ob->name : "null", ol->ob ? ol->ob->x : -1, ol->ob ? ol->ob->y : -1, obp->value);
		958	continue;
		959	}
		960
		961	if (ol->ob->type == BUTTON || ol->ob->type == PEDESTAL)
1553	{	962	{
1554	LOG (llevDebug, "free_all_objects: Link error, bailing out.\n");	963	update_button (ol->ob);
1555	break;	964	break;
1556	}
1557	previous_obj = op;
1558	if (op->head != NULL)
1559	op = op->head;
1560
1561	/* If the map isn't in memory, free_object will remove and
1562	* free objects in op's inventory. So let it do the job.
1563	*/
1564	if (m->in_memory == MAP_IN_MEMORY)
1565	clean_object (op);
1566	remove_ob (op);
1567	free_object (op);
1568	}	965	}
1569	}	966	}
1570	}	967	}
1571
1572	/*
1573	* Frees everything allocated by the given maptileure.
1574	* don't free tmpname - our caller is left to do that
1575	*/
1576
1577	void
1578	free_map (maptile *m, int flag)
1579	{
1580	int i;
1581
1582	if (!m->in_memory)
1583	{
1584	LOG (llevError, "Trying to free freed map.\n");
1585	return;
1586	}
1587	if (flag && m->spaces)
1588	free_all_objects (m);
1589	if (m->name)
1590	FREE_AND_CLEAR (m->name);
1591	if (m->spaces)
1592	FREE_AND_CLEAR (m->spaces);
1593	if (m->msg)
1594	FREE_AND_CLEAR (m->msg);
1595	if (m->maplore)
1596	FREE_AND_CLEAR (m->maplore);
1597	if (m->shopitems)
1598	delete[]m->shopitems;
1599	m->shopitems = 0;
1600	if (m->shoprace)
1601	FREE_AND_CLEAR (m->shoprace);
1602	if (m->buttons)
1603	free_objectlinkpt (m->buttons);
1604	m->buttons = NULL;
1605	for (i = 0; i < 4; i++)
1606	{
1607	if (m->tile_path[i])
1608	FREE_AND_CLEAR (m->tile_path[i]);
1609	m->tile_map[i] = NULL;
1610	}
1611	m->in_memory = MAP_SWAPPED;
1612	}
1613
1614	/*
1615	* function: vanish maptile
1616	* m : pointer to maptile, if NULL no action
1617	* this deletes all the data on the map (freeing pointers)
1618	* and then removes this map from the global linked list of maps.
1619	*/
1620
1621	void
1622	delete_map (maptile *m)
1623	{
1624	maptile *tmp, *last;
1625	int i;
1626
1627	if (!m)
1628	return;
1629
1630	m->clear ();
1631
1632	if (m->in_memory == MAP_IN_MEMORY)
1633	{
1634	/* change to MAP_SAVING, even though we are not,
1635	* so that remove_ob doesn't do as much work.
1636	*/
1637	m->in_memory = MAP_SAVING;
1638	free_map (m, 1);
1639	}
1640	/* move this out of free_map, since tmpname can still be needed if
1641	* the map is swapped out.
1642	*/
1643	if (m->tmpname)
1644	{
1645	free (m->tmpname);
1646	m->tmpname = NULL;
1647	}
1648	last = NULL;
1649	/* We need to look through all the maps and see if any maps
1650	* are pointing at this one for tiling information. Since
1651	* tiling can be assymetric, we just can not look to see which
1652	* maps this map tiles with and clears those.
1653	*/
1654	for (tmp = first_map; tmp != NULL; tmp = tmp->next)
1655	{
1656	if (tmp->next == m)
1657	last = tmp;
1658
1659	/* This should hopefully get unrolled on a decent compiler */
1660	for (i = 0; i < 4; i++)
1661	if (tmp->tile_map[i] == m)
1662	tmp->tile_map[i] = NULL;
1663	}
1664
1665	/* If last is null, then this should be the first map in the list */
1666	if (!last)
1667	{
1668	if (m == first_map)
1669	first_map = m->next;
1670	else
1671	/* m->path is a static char, so should hopefully still have
1672	* some useful data in it.
1673	*/
1674	LOG (llevError, "delete_map: Unable to find map %s in list\n", m->path);
1675	}
1676	else
1677	last->next = m->next;
1678
1679	delete m;
1680	}
1681
1682
1683
1684	/*
1685	* Makes sure the given map is loaded and swapped in.
1686	* name is path name of the map.
1687	* flags meaning:
1688	* 0x1 (MAP_FLUSH): flush the map - always load from the map directory,
1689	* and don't do unique items or the like.
1690	* 0x2 (MAP_PLAYER_UNIQUE) - this is a unique map for each player.
1691	* dont do any more name translation on it.
1692	*
1693	* Returns a pointer to the given map.
1694	*/
1695
1696	maptile *
1697	ready_map_name (const char *name, int flags)
1698	{
1699	maptile *m;
1700
1701	if (!name)
1702	return (NULL);
1703
1704	/* Have we been at this level before? */
1705	m = has_been_loaded (name);
1706
1707	/* Map is good to go, so just return it */
1708	if (m && (m->in_memory == MAP_LOADING || m->in_memory == MAP_IN_MEMORY))
1709	{
1710	return m;
1711	}
1712
1713	/* unique maps always get loaded from their original location, and never
1714	* a temp location. Likewise, if map_flush is set, or we have never loaded
1715	* this map, load it now. I removed the reset checking from here -
1716	* it seems the probability of a player trying to enter a map that should
1717	* reset but hasn't yet is quite low, and removing that makes this function
1718	* a bit cleaner (and players probably shouldn't rely on exact timing for
1719	* resets in any case - if they really care, they should use the 'maps command.
1720	*/
1721	if ((flags & (MAP_FLUSH | MAP_PLAYER_UNIQUE)) || !m)
1722	{
1723
1724	/* first visit or time to reset */
1725	if (m)
1726	{
1727	clean_tmp_map (m); /* Doesn't make much difference */
1728	delete_map (m);
1729	}
1730
1731	/* create and load a map */
1732	if (flags & MAP_PLAYER_UNIQUE)
1733	LOG (llevDebug, "Trying to load map %s.\n", name);
1734	else
1735	LOG (llevDebug, "Trying to load map %s.\n", create_pathname (name));
1736
1737	//eval_pv ("$x = Event::time", 1);//D
1738	if (!(m = load_original_map (name, (flags & MAP_PLAYER_UNIQUE))))
1739	return (NULL);
1740	//eval_pv ("warn \"LOAD \", Event::time - $x", 1);//D
1741
1742	fix_auto_apply (m); /* Chests which open as default */
1743
1744	/* If a player unique map, no extra unique object file to load.
1745	* if from the editor, likewise.
1746	*/
1747	if (!(flags & (MAP_FLUSH | MAP_PLAYER_UNIQUE)))
1748	load_unique_objects (m);
1749
1750	if (!(flags & (MAP_FLUSH | MAP_PLAYER_UNIQUE | MAP_OVERLAY)))
1751	{
1752	m = load_overlay_map (name, m);
1753	if (m == NULL)
1754	return NULL;
1755	}
1756
1757	if (flags & MAP_PLAYER_UNIQUE)
1758	INVOKE_MAP (SWAPIN, m);
1759
1760	}
1761	else
1762	{
1763	/* If in this loop, we found a temporary map, so load it up. */
1764
1765	m = load_temporary_map (m);
1766	if (m == NULL)
1767	return NULL;
1768	load_unique_objects (m);
1769
1770	clean_tmp_map (m);
1771	m->in_memory = MAP_IN_MEMORY;
1772	/* tempnam() on sun systems (probably others) uses malloc
1773	* to allocated space for the string. Free it here.
1774	* In some cases, load_temporary_map above won't find the
1775	* temporary map, and so has reloaded a new map. If that
1776	* is the case, tmpname is now null
1777	*/
1778	if (m->tmpname)
1779	free (m->tmpname);
1780	m->tmpname = NULL;
1781	/* It's going to be saved anew anyway */
1782	}
1783
1784	/* Below here is stuff common to both first time loaded maps and
1785	* temp maps.
1786	*/
1787
1788	decay_objects (m); /* start the decay */
1789	/* In case other objects press some buttons down */
1790	update_buttons (m);
1791	if (m->outdoor)
1792	set_darkness_map (m);
1793	/* run the weather over this map */
1794	weather_effect (name);
1795	return m;
1796	}
1797
1798		968
1799	/*	969	/*
1800	* This routine is supposed to find out the difficulty of the map.	970	* This routine is supposed to find out the difficulty of the map.
1801	* difficulty does not have a lot to do with character level,	971	* difficulty does not have a lot to do with character level,
1802	* but does have a lot to do with treasure on the map.	972	* but does have a lot to do with treasure on the map.
…		…
1804	* Difficulty can now be set by the map creature. If the value stored	974	* Difficulty can now be set by the map creature. If the value stored
1805	* in the map is zero, then use this routine. Maps should really	975	* in the map is zero, then use this routine. Maps should really
1806	* have a difficulty set than using this function - human calculation	976	* have a difficulty set than using this function - human calculation
1807	* is much better than this functions guesswork.	977	* is much better than this functions guesswork.
1808	*/	978	*/
1809
1810	int	979	int
1811	calculate_difficulty (maptile *m)	980	maptile::estimate_difficulty () const
1812	{	981	{
1813	object *op;
1814	archetype *at;
1815	int x, y, i;
1816	long monster_cnt = 0;	982	long monster_cnt = 0;
1817	double avgexp = 0;	983	double avgexp = 0;
1818	sint64 total_exp = 0;	984	sint64 total_exp = 0;
1819		985
1820	if (MAP_DIFFICULTY (m))	986	for (mapspace *ms = spaces + size (); ms-- > spaces; )
1821	{	987	for (object *op = ms->bot; op; op = op->above)
1822	LOG (llevDebug, "Using stored map difficulty: %d\n", MAP_DIFFICULTY (m));
1823	return MAP_DIFFICULTY (m);
1824	}
1825
1826	for (x = 0; x < MAP_WIDTH (m); x++)
1827	for (y = 0; y < MAP_HEIGHT (m); y++)
1828	for (op = get_map_ob (m, x, y); op != NULL; op = op->above)
1829	{	988	{
1830	if (QUERY_FLAG (op, FLAG_MONSTER))	989	if (QUERY_FLAG (op, FLAG_MONSTER))
1831	{	990	{
1832	total_exp += op->stats.exp;	991	total_exp += op->stats.exp;
1833	monster_cnt++;	992	monster_cnt++;
1834	}	993	}
1835		994
1836	if (QUERY_FLAG (op, FLAG_GENERATOR))	995	if (QUERY_FLAG (op, FLAG_GENERATOR))
1837	{	996	{
1838	total_exp += op->stats.exp;	997	total_exp += op->stats.exp;
1839	at = type_to_archetype (GENERATE_TYPE (op));
1840		998
1841	if (at != NULL)	999	if (archetype *at = op->other_arch)
		1000	{
1842	total_exp += at->clone.stats.exp * 8;	1001	total_exp += at->stats.exp * 8;
1843
1844	monster_cnt++;	1002	monster_cnt++;
1845	}	1003	}
		1004
		1005	for (object *inv = op->inv; inv; inv = inv->below)
		1006	{
		1007	total_exp += op->stats.exp * 8;
		1008	monster_cnt++;
		1009	}
1846	}	1010	}
		1011	}
1847		1012
1848	avgexp = (double) total_exp / monster_cnt;	1013	avgexp = (double) total_exp / monster_cnt;
1849		1014
1850	for (i = 1; i <= settings.max_level; i++)	1015	for (int i = 1; i <= settings.max_level; i++)
1851	{
1852	if ((level_exp (i, 1) - level_exp (i - 1, 1)) > (100 * avgexp))	1016	if ((level_exp (i, 1) - level_exp (i - 1, 1)) > (100 * avgexp))
1853	{
1854	/* LOG(llevDebug, "Calculated difficulty for map: %s: %d\n", m->name, i); */
1855	return i;	1017	return i;
1856	}
1857	}
1858		1018
1859	return 1;	1019	return 1;
1860	}
1861
1862	void
1863	clean_tmp_map (maptile *m)
1864	{
1865	if (m->tmpname == NULL)
1866	return;
1867	INVOKE_MAP (CLEAN, m);
1868	(void) unlink (m->tmpname);
1869	}
1870
1871	void
1872	free_all_maps (void)
1873	{
1874	int real_maps = 0;
1875
1876	while (first_map)
1877	{
1878	/* I think some of the callers above before it gets here set this to be
1879	* saving, but we still want to free this data
1880	*/
1881	if (first_map->in_memory == MAP_SAVING)
1882	first_map->in_memory = MAP_IN_MEMORY;
1883	delete_map (first_map);
1884	real_maps++;
1885	}
1886	LOG (llevDebug, "free_all_maps: Freed %d maps\n", real_maps);
1887	}	1020	}
1888		1021
1889	/* change_map_light() - used to change map light level (darkness)	1022	/* change_map_light() - used to change map light level (darkness)
1890	* up or down. Returns true if successful. It should now be	1023	* up or down. Returns true if successful. It should now be
1891	* possible to change a value by more than 1.	1024	* possible to change a value by more than 1.
1892	* Move this from los.c to map.c since this is more related	1025	* Move this from los.c to map.c since this is more related
1893	* to maps than los.	1026	* to maps than los.
1894	* postive values make it darker, negative make it brighter	1027	* postive values make it darker, negative make it brighter
1895	*/	1028	*/
1896
1897	int	1029	int
1898	change_map_light (maptile *m, int change)	1030	maptile::change_map_light (int change)
1899	{	1031	{
1900	int new_level = m->darkness + change;	1032	int new_level = darkness + change;
1901		1033
1902	/* Nothing to do */	1034	/* Nothing to do */
1903	if (!change || (new_level <= 0 && m->darkness == 0) || (new_level >= MAX_DARKNESS && m->darkness >= MAX_DARKNESS))	1035	if (!change || (new_level <= 0 && darkness == 0) || (new_level >= MAX_DARKNESS && darkness >= MAX_DARKNESS))
1904	{
1905	return 0;	1036	return 0;
1906	}
1907		1037
1908	/* inform all players on the map */	1038	/* inform all players on the map */
1909	if (change > 0)	1039	if (change > 0)
1910	new_info_map (NDI_BLACK | NDI_UNIQUE, m, "It becomes darker.");	1040	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes darker.");
1911	else	1041	else
1912	new_info_map (NDI_BLACK | NDI_UNIQUE, m, "It becomes brighter.");	1042	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes brighter.");
1913		1043
1914	/* Do extra checking. since m->darkness is a unsigned value,	1044	/* Do extra checking. since darkness is a unsigned value,
1915	* we need to be extra careful about negative values.	1045	* we need to be extra careful about negative values.
1916	* In general, the checks below are only needed if change	1046	* In general, the checks below are only needed if change
1917	* is not +/-1	1047	* is not +/-1
1918	*/	1048	*/
1919	if (new_level < 0)	1049	if (new_level < 0)
1920	m->darkness = 0;	1050	darkness = 0;
1921	else if (new_level >= MAX_DARKNESS)	1051	else if (new_level >= MAX_DARKNESS)
1922	m->darkness = MAX_DARKNESS;	1052	darkness = MAX_DARKNESS;
1923	else	1053	else
1924	m->darkness = new_level;	1054	darkness = new_level;
1925		1055
1926	/* All clients need to get re-updated for the change */	1056	/* All clients need to get re-updated for the change */
1927	update_all_map_los (m);	1057	update_all_map_los (this);
		1058
1928	return 1;	1059	return 1;
1929	}	1060	}
1930
1931		1061
1932	/*	1062	/*
1933	* This function updates various attributes about a specific space	1063	* This function updates various attributes about a specific space
1934	* on the map (what it looks like, whether it blocks magic,	1064	* on the map (what it looks like, whether it blocks magic,
1935	* has a living creatures, prevents people from passing	1065	* has a living creatures, prevents people from passing
1936	* through, etc)	1066	* through, etc)
1937	*/	1067	*/
1938	void	1068	void
1939	update_position (maptile *m, int x, int y)	1069	mapspace::update_ ()
1940	{	1070	{
1941	object *tmp, *last = NULL;	1071	object *last = 0;
1942	uint8 flags = 0, oldflags, light = 0, anywhere = 0;	1072	uint8 flags = P_UPTODATE, light = 0, anywhere = 0;
1943	New_Face *top, *floor, *middle;
1944	object *top_obj, *floor_obj, *middle_obj;
1945	MoveType move_block = 0, move_slow = 0, move_on = 0, move_off = 0, move_allow = 0;	1073	MoveType move_block = 0, move_slow = 0, move_on = 0, move_off = 0, move_allow = 0;
1946		1074
1947	oldflags = GET_MAP_FLAGS (m, x, y);	1075	//object *middle = 0;
1948	if (!(oldflags & P_NEED_UPDATE))	1076	//object *top = 0;
1949	{	1077	//object *floor = 0;
1950	LOG (llevDebug, "update_position called with P_NEED_UPDATE not set: %s (%d, %d)\n", m->path, x, y);	1078	// this seems to generate better code than using locals, above
1951	return;	1079	object *&top = faces_obj[0] = 0;
		1080	object *&middle = faces_obj[1] = 0;
		1081	object *&floor = faces_obj[2] = 0;
		1082
		1083	for (object *tmp = bot; tmp; last = tmp, tmp = tmp->above)
1952	}	1084	{
1953
1954	middle = blank_face;
1955	top = blank_face;
1956	floor = blank_face;
1957
1958	middle_obj = NULL;
1959	top_obj = NULL;
1960	floor_obj = NULL;
1961
1962	for (tmp = get_map_ob (m, x, y); tmp; last = tmp, tmp = tmp->above)
1963	{
1964
1965	/* This could be made additive I guess (two lights better than	1085	/* This could be made additive I guess (two lights better than
1966	* one). But if so, it shouldn't be a simple additive - 2	1086	* one). But if so, it shouldn't be a simple additive - 2
1967	* light bulbs do not illuminate twice as far as once since	1087	* light bulbs do not illuminate twice as far as once since
1968	* it is a disapation factor that is squared (or is it cubed?)	1088	* it is a dissapation factor that is cubed.
1969	*/	1089	*/
1970	if (tmp->glow_radius > light)
1971	light = tmp->glow_radius;	1090	light = max (light, tmp->glow_radius);
1972		1091
1973	/* This call is needed in order to update objects the player	1092	/* This call is needed in order to update objects the player
1974	* is standing in that have animations (ie, grass, fire, etc).	1093	* is standing in that have animations (ie, grass, fire, etc).
1975	* However, it also causes the look window to be re-drawn	1094	* However, it also causes the look window to be re-drawn
1976	* 3 times each time the player moves, because many of the	1095	* 3 times each time the player moves, because many of the
…		…
1979	* Always put the player down for drawing.	1098	* Always put the player down for drawing.
1980	*/	1099	*/
1981	if (!tmp->invisible)	1100	if (!tmp->invisible)
1982	{	1101	{
1983	if ((tmp->type == PLAYER || QUERY_FLAG (tmp, FLAG_MONSTER)))	1102	if ((tmp->type == PLAYER || QUERY_FLAG (tmp, FLAG_MONSTER)))
1984	{
1985	top = tmp->face;
1986	top_obj = tmp;	1103	top = tmp;
1987	}
1988	else if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))	1104	else if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))
1989	{	1105	{
1990	/* If we got a floor, that means middle and top were below it,	1106	/* If we got a floor, that means middle and top were below it,
1991	* so should not be visible, so we clear them.	1107	* so should not be visible, so we clear them.
1992	*/	1108	*/
1993	middle = blank_face;	1109	middle = 0;
1994	top = blank_face;	1110	top = 0;
1995	floor = tmp->face;
1996	floor_obj = tmp;	1111	floor = tmp;
1997	}	1112	}
1998	/* Flag anywhere have high priority */	1113	/* Flag anywhere have high priority */
1999	else if (QUERY_FLAG (tmp, FLAG_SEE_ANYWHERE))	1114	else if (QUERY_FLAG (tmp, FLAG_SEE_ANYWHERE))
2000	{	1115	{
2001	middle = tmp->face;
2002
2003	middle_obj = tmp;	1116	middle = tmp;
2004	anywhere = 1;	1117	anywhere = 1;
2005	}	1118	}
		1119
2006	/* Find the highest visible face around. If equal	1120	/* Find the highest visible face around. If equal
2007	* visibilities, we still want the one nearer to the	1121	* visibilities, we still want the one nearer to the
2008	* top	1122	* top
2009	*/	1123	*/
2010	else if (middle == blank_face || (tmp->face->visibility > middle->visibility && !anywhere))	1124	else if (!middle || (::faces [tmp->face].visibility > ::faces [middle->face].visibility && !anywhere))
2011	{
2012	middle = tmp->face;
2013	middle_obj = tmp;	1125	middle = tmp;
2014	}
2015	}	1126	}
		1127
2016	if (tmp == tmp->above)	1128	if (tmp == tmp->above)
2017	{	1129	{
2018	LOG (llevError, "Error in structure of map\n");	1130	LOG (llevError, "Error in structure of map\n");
2019	exit (-1);	1131	exit (-1);
2020	}	1132	}
2021		1133
2022	move_slow |= tmp->move_slow;	1134	move_slow |= tmp->move_slow;
2023	move_block |= tmp->move_block;	1135	move_block |= tmp->move_block;
2024	move_on |= tmp->move_on;	1136	move_on |= tmp->move_on;
2025	move_off |= tmp->move_off;	1137	move_off |= tmp->move_off;
2026	move_allow |= tmp->move_allow;	1138	move_allow |= tmp->move_allow;
2027		1139
2028	if (QUERY_FLAG (tmp, FLAG_ALIVE))
2029	flags |= P_IS_ALIVE;
2030	if (QUERY_FLAG (tmp, FLAG_NO_MAGIC))
2031	flags |= P_NO_MAGIC;
2032	if (QUERY_FLAG (tmp, FLAG_DAMNED))
2033	flags |= P_NO_CLERIC;
2034	if (tmp->type == SAFE_GROUND)
2035	flags |= P_SAFE;
2036
2037	if (QUERY_FLAG (tmp, FLAG_BLOCKSVIEW))	1140	if (QUERY_FLAG (tmp, FLAG_BLOCKSVIEW)) flags |= P_BLOCKSVIEW;
2038	flags |= P_BLOCKSVIEW;	1141	if (QUERY_FLAG (tmp, FLAG_NO_MAGIC)) flags |= P_NO_MAGIC;
2039	} /* for stack of objects */	1142	if (tmp->type == PLAYER) flags |= P_PLAYER;
2040		1143	if (tmp->type == SAFE_GROUND) flags |= P_SAFE;
2041	/* we don't want to rely on this function to have accurate flags, but	1144	if (QUERY_FLAG (tmp, FLAG_ALIVE)) flags |= P_IS_ALIVE;
2042	* since we're already doing the work, we calculate them here.	1145	if (QUERY_FLAG (tmp, FLAG_DAMNED)) flags |= P_NO_CLERIC;
2043	* if they don't match, logic is broken someplace.
2044	*/
2045	if (((oldflags & ~(P_NEED_UPDATE | P_NO_ERROR)) != flags) && (!(oldflags & P_NO_ERROR)))
2046	{	1146	}
2047	LOG (llevDebug, "update_position: updated flags do not match old flags: %s (old=%d,new=%d) %x != %x\n",	1147
2048	m->path, x, y, (oldflags & ~P_NEED_UPDATE), flags);	1148	this->light = light;
2049	}	1149	this->flags_ = flags;
2050	SET_MAP_FLAGS (m, x, y, flags);	1150	this->move_block = move_block & ~move_allow;
2051	SET_MAP_MOVE_BLOCK (m, x, y, move_block & ~move_allow);	1151	this->move_on = move_on;
2052	SET_MAP_MOVE_ON (m, x, y, move_on);	1152	this->move_off = move_off;
2053	SET_MAP_MOVE_OFF (m, x, y, move_off);	1153	this->move_slow = move_slow;
2054	SET_MAP_MOVE_SLOW (m, x, y, move_slow);
2055		1154
2056	/* At this point, we have a floor face (if there is a floor),	1155	/* At this point, we have a floor face (if there is a floor),
2057	* and the floor is set - we are not going to touch it at	1156	* and the floor is set - we are not going to touch it at
2058	* this point.	1157	* this point.
2059	* middle contains the highest visibility face.	1158	* middle contains the highest visibility face.
…		…
2066	* middle face. This should not happen, as we already have the	1165	* middle face. This should not happen, as we already have the
2067	* else statement above so middle should not get set. OTOH, it	1166	* else statement above so middle should not get set. OTOH, it
2068	* may be possible for the faces to match but be different objects.	1167	* may be possible for the faces to match but be different objects.
2069	*/	1168	*/
2070	if (top == middle)	1169	if (top == middle)
2071	middle = blank_face;	1170	middle = 0;
2072		1171
2073	/* There are three posibilities at this point:	1172	/* There are three posibilities at this point:
2074	* 1) top face is set, need middle to be set.	1173	* 1) top face is set, need middle to be set.
2075	* 2) middle is set, need to set top.	1174	* 2) middle is set, need to set top.
2076	* 3) neither middle or top is set - need to set both.	1175	* 3) neither middle or top is set - need to set both.
2077	*/	1176	*/
2078		1177
2079	for (tmp = last; tmp; tmp = tmp->below)	1178	for (object *tmp = last; tmp; tmp = tmp->below)
2080	{	1179	{
2081	/* Once we get to a floor, stop, since we already have a floor object */	1180	/* Once we get to a floor, stop, since we already have a floor object */
2082	if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))	1181	if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))
2083	break;	1182	break;
2084		1183
2085	/* If two top faces are already set, quit processing */	1184	/* If two top faces are already set, quit processing */
2086	if ((top != blank_face) && (middle != blank_face))	1185	if (top && middle)
2087	break;	1186	break;
2088		1187
2089	/* Only show visible faces, unless its the editor - show all */	1188	/* Only show visible faces */
2090	if (!tmp->invisible || editor)	1189	if (!tmp->invisible)
2091	{	1190	{
2092	/* Fill in top if needed */	1191	/* Fill in top if needed */
2093	if (top == blank_face)	1192	if (!top)
2094	{	1193	{
2095	top = tmp->face;
2096	top_obj = tmp;	1194	top = tmp;
2097	if (top == middle)	1195	if (top == middle)
2098	middle = blank_face;	1196	middle = 0;
2099	}	1197	}
2100	else	1198	else
2101	{	1199	{
2102	/* top is already set - we should only get here if	1200	/* top is already set - we should only get here if
2103	* middle is not set	1201	* middle is not set
2104	*	1202	*
2105	* Set the middle face and break out, since there is nothing	1203	* Set the middle face and break out, since there is nothing
2106	* more to fill in. We don't check visiblity here, since	1204	* more to fill in. We don't check visiblity here, since
2107	*	1205	*
2108	*/	1206	*/
2109	if (tmp->face != top)	1207	if (tmp != top)
2110	{	1208	{
2111	middle = tmp->face;
2112	middle_obj = tmp;	1209	middle = tmp;
2113	break;	1210	break;
2114	}	1211	}
2115	}	1212	}
2116	}	1213	}
2117	}	1214	}
		1215
2118	if (middle == floor)	1216	if (middle == floor)
2119	middle = blank_face;	1217	middle = 0;
		1218
2120	if (top == middle)	1219	if (top == middle)
2121	middle = blank_face;	1220	middle = 0;
2122	SET_MAP_FACE (m, x, y, top, 0);
2123	if (top != blank_face)
2124	SET_MAP_FACE_OBJ (m, x, y, top_obj, 0);
2125	else
2126	SET_MAP_FACE_OBJ (m, x, y, NULL, 0);
2127	SET_MAP_FACE (m, x, y, middle, 1);
2128	if (middle != blank_face)
2129	SET_MAP_FACE_OBJ (m, x, y, middle_obj, 1);
2130	else
2131	SET_MAP_FACE_OBJ (m, x, y, NULL, 1);
2132	SET_MAP_FACE (m, x, y, floor, 2);
2133	if (floor != blank_face)
2134	SET_MAP_FACE_OBJ (m, x, y, floor_obj, 2);
2135	else
2136	SET_MAP_FACE_OBJ (m, x, y, NULL, 2);
2137	SET_MAP_LIGHT (m, x, y, light);
2138	}
2139		1221
2140		1222	#if 0
2141	void	1223	faces_obj [0] = top;
2142	set_map_reset_time (maptile *map)	1224	faces_obj [1] = middle;
2143	{	1225	faces_obj [2] = floor;
2144	int timeout;	1226	#endif
2145
2146	timeout = MAP_RESET_TIMEOUT (map);
2147	if (timeout <= 0)
2148	timeout = MAP_DEFAULTRESET;
2149	if (timeout >= MAP_MAXRESET)
2150	timeout = MAP_MAXRESET;
2151	MAP_WHEN_RESET (map) = seconds () + timeout;
2152	}	1227	}
2153		1228
2154	/* this updates the orig_map->tile_map[tile_num] value after loading	1229	uint64
2155	* the map. It also takes care of linking back the freshly loaded	1230	mapspace::volume () const
2156	* maps tile_map values if it tiles back to this one. It returns
2157	* the value of orig_map->tile_map[tile_num]. It really only does this
2158	* so that it is easier for calling functions to verify success.
2159	*/
2160
2161	static maptile *
2162	load_and_link_tiled_map (maptile *orig_map, int tile_num)
2163	{	1231	{
2164	int dest_tile = (tile_num + 2) % 4;	1232	uint64 vol = 0;
2165	char *path = path_combine_and_normalize (orig_map->path, orig_map->tile_path[tile_num]);
2166		1233
2167	orig_map->tile_map[tile_num] = ready_map_name (path, 0);	1234	for (object *op = top; op && !op->flag [FLAG_NO_PICK]; op = op->below)
		1235	vol += op->volume ();
2168		1236
2169	/* need to do a strcmp here as the orig_map->path is not a shared string */	1237	return vol;
2170	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))	1238	}
2171	orig_map->tile_map[tile_num]->tile_map[dest_tile] = orig_map;
2172		1239
2173	return orig_map->tile_map[tile_num];	1240	bool
		1241	maptile::tile_available (int dir, bool load)
		1242	{
		1243	if (!tile_path[dir])
		1244	return 0;
		1245
		1246	if (tile_map[dir] && (!load || tile_map[dir]->in_memory == MAP_ACTIVE))
		1247	return 1;
		1248
		1249	if ((tile_map[dir] = find_async (tile_path[dir], this, load)))
		1250	return 1;
		1251
		1252	return 0;
2174	}	1253	}
2175		1254
2176	/* this returns TRUE if the coordinates (x,y) are out of	1255	/* this returns TRUE if the coordinates (x,y) are out of
2177	* map m. This function also takes into account any	1256	* map m. This function also takes into account any
2178	* tiling considerations, loading adjacant maps as needed.	1257	* tiling considerations, loading adjacant maps as needed.
2179	* This is the function should always be used when it	1258	* This is the function should always be used when it
2180	* necessary to check for valid coordinates.	1259	* necessary to check for valid coordinates.
2181	* This function will recursively call itself for the	1260	* This function will recursively call itself for the
2182	* tiled maps.	1261	* tiled maps.
2183	*
2184	*
2185	*/	1262	*/
2186	int	1263	int
2187	out_of_map (maptile *m, int x, int y)	1264	out_of_map (maptile *m, int x, int y)
2188	{	1265	{
2189
2190	/* If we get passed a null map, this is obviously the	1266	/* If we get passed a null map, this is obviously the
2191	* case. This generally shouldn't happen, but if the	1267	* case. This generally shouldn't happen, but if the
2192	* map loads fail below, it could happen.	1268	* map loads fail below, it could happen.
2193	*/	1269	*/
2194	if (!m)	1270	if (!m)
2195	return 0;	1271	return 0;
2196		1272
2197	if (x < 0)	1273	if (x < 0)
2198	{	1274	{
2199	if (!m->tile_path[3])	1275	if (!m->tile_available (3))
2200	return 1;	1276	return 1;
2201	if (!m->tile_map[3] || m->tile_map[3]->in_memory != MAP_IN_MEMORY)	1277
2202	{
2203	load_and_link_tiled_map (m, 3);
2204	}
2205	return (out_of_map (m->tile_map[3], x + MAP_WIDTH (m->tile_map[3]), y));	1278	return out_of_map (m->tile_map[3], x + m->tile_map[3]->width, y);
2206	}
2207	if (x >= MAP_WIDTH (m))
2208	{	1279	}
2209	if (!m->tile_path[1])	1280
		1281	if (x >= m->width)
		1282	{
		1283	if (!m->tile_available (1))
2210	return 1;	1284	return 1;
2211	if (!m->tile_map[1] || m->tile_map[1]->in_memory != MAP_IN_MEMORY)	1285
2212	{
2213	load_and_link_tiled_map (m, 1);
2214	}
2215	return (out_of_map (m->tile_map[1], x - MAP_WIDTH (m), y));	1286	return out_of_map (m->tile_map[1], x - m->width, y);
2216	}	1287	}
		1288
2217	if (y < 0)	1289	if (y < 0)
2218	{	1290	{
2219	if (!m->tile_path[0])	1291	if (!m->tile_available (0))
2220	return 1;	1292	return 1;
2221	if (!m->tile_map[0] || m->tile_map[0]->in_memory != MAP_IN_MEMORY)	1293
2222	{
2223	load_and_link_tiled_map (m, 0);
2224	}
2225	return (out_of_map (m->tile_map[0], x, y + MAP_HEIGHT (m->tile_map[0])));	1294	return out_of_map (m->tile_map[0], x, y + m->tile_map[0]->height);
2226	}
2227	if (y >= MAP_HEIGHT (m))
2228	{	1295	}
2229	if (!m->tile_path[2])	1296
		1297	if (y >= m->height)
		1298	{
		1299	if (!m->tile_available (2))
2230	return 1;	1300	return 1;
2231	if (!m->tile_map[2] || m->tile_map[2]->in_memory != MAP_IN_MEMORY)	1301
2232	{
2233	load_and_link_tiled_map (m, 2);
2234	}
2235	return (out_of_map (m->tile_map[2], x, y - MAP_HEIGHT (m)));	1302	return out_of_map (m->tile_map[2], x, y - m->height);
2236	}	1303	}
2237		1304
2238	/* Simple case - coordinates are within this local	1305	/* Simple case - coordinates are within this local
2239	* map.	1306	* map.
2240	*/	1307	*/
…		…
2243		1310
2244	/* This is basically the same as out_of_map above, but	1311	/* This is basically the same as out_of_map above, but
2245	* instead we return NULL if no map is valid (coordinates	1312	* instead we return NULL if no map is valid (coordinates
2246	* out of bounds and no tiled map), otherwise it returns	1313	* out of bounds and no tiled map), otherwise it returns
2247	* the map as that the coordinates are really on, and	1314	* the map as that the coordinates are really on, and
2248	* updates x and y to be the localized coordinates.	1315	* updates x and y to be the localised coordinates.
2249	* Using this is more efficient of calling out_of_map	1316	* Using this is more efficient of calling out_of_map
2250	* and then figuring out what the real map is	1317	* and then figuring out what the real map is
2251	*/	1318	*/
2252	maptile *	1319	maptile *
2253	get_map_from_coord (maptile *m, sint16 * x, sint16 * y)	1320	maptile::xy_find (sint16 &x, sint16 &y)
2254	{	1321	{
2255
2256	if (*x < 0)	1322	if (x < 0)
2257	{	1323	{
2258	if (!m->tile_path[3])	1324	if (!tile_available (3))
2259	return NULL;	1325	return 0;
2260	if (!m->tile_map[3] || m->tile_map[3]->in_memory != MAP_IN_MEMORY)
2261	load_and_link_tiled_map (m, 3);
2262		1326
2263	*x += MAP_WIDTH (m->tile_map[3]);	1327	x += tile_map[3]->width;
2264	return (get_map_from_coord (m->tile_map[3], x, y));	1328	return tile_map[3]->xy_find (x, y);
2265	}
2266	if (*x >= MAP_WIDTH (m))
2267	{	1329	}
2268	if (!m->tile_path[1])	1330
		1331	if (x >= width)
		1332	{
		1333	if (!tile_available (1))
2269	return NULL;	1334	return 0;
2270	if (!m->tile_map[1] || m->tile_map[1]->in_memory != MAP_IN_MEMORY)
2271	load_and_link_tiled_map (m, 1);
2272		1335
2273	*x -= MAP_WIDTH (m);	1336	x -= width;
2274	return (get_map_from_coord (m->tile_map[1], x, y));	1337	return tile_map[1]->xy_find (x, y);
2275	}	1338	}
		1339
2276	if (*y < 0)	1340	if (y < 0)
2277	{	1341	{
2278	if (!m->tile_path[0])	1342	if (!tile_available (0))
2279	return NULL;	1343	return 0;
2280	if (!m->tile_map[0] || m->tile_map[0]->in_memory != MAP_IN_MEMORY)
2281	load_and_link_tiled_map (m, 0);
2282		1344
2283	*y += MAP_HEIGHT (m->tile_map[0]);	1345	y += tile_map[0]->height;
2284	return (get_map_from_coord (m->tile_map[0], x, y));	1346	return tile_map[0]->xy_find (x, y);
2285	}
2286	if (*y >= MAP_HEIGHT (m))
2287	{	1347	}
2288	if (!m->tile_path[2])	1348
		1349	if (y >= height)
		1350	{
		1351	if (!tile_available (2))
2289	return NULL;	1352	return 0;
2290	if (!m->tile_map[2] || m->tile_map[2]->in_memory != MAP_IN_MEMORY)
2291	load_and_link_tiled_map (m, 2);
2292		1353
2293	*y -= MAP_HEIGHT (m);	1354	y -= height;
2294	return (get_map_from_coord (m->tile_map[2], x, y));	1355	return tile_map[2]->xy_find (x, y);
2295	}	1356	}
2296		1357
2297	/* Simple case - coordinates are within this local	1358	/* Simple case - coordinates are within this local
2298	* map.	1359	* map.
2299	*/	1360	*/
2300
2301	return m;	1361	return this;
2302	}	1362	}
2303		1363
2304	/**	1364	/**
2305	* Return whether map2 is adjacent to map1. If so, store the distance from	1365	* Return whether map2 is adjacent to map1. If so, store the distance from
2306	* map1 to map2 in dx/dy.	1366	* map1 to map2 in dx/dy.
2307	*/	1367	*/
2308	static int	1368	int
2309	adjacent_map (const maptile *map1, const maptile *map2, int *dx, int *dy)	1369	adjacent_map (const maptile *map1, const maptile *map2, int *dx, int *dy)
2310	{	1370	{
2311	if (!map1 || !map2)	1371	if (!map1 || !map2)
2312	return 0;	1372	return 0;
2313		1373
		1374	//TODO: this doesn't actually check correctly when intermediate maps are not loaded
		1375	//fix: compare paths instead (this is likely faster, too!)
2314	if (map1 == map2)	1376	if (map1 == map2)
2315	{	1377	{
2316	*dx = 0;	1378	*dx = 0;
2317	*dy = 0;	1379	*dy = 0;
2318
2319	}	1380	}
2320	else if (map1->tile_map[0] == map2)	1381	else if (map1->tile_map[0] == map2)
2321	{ /* up */	1382	{ /* up */
2322	*dx = 0;	1383	*dx = 0;
2323	*dy = -MAP_HEIGHT (map2);	1384	*dy = -map2->height;
2324	}	1385	}
2325	else if (map1->tile_map[1] == map2)	1386	else if (map1->tile_map[1] == map2)
2326	{ /* right */	1387	{ /* right */
2327	*dx = MAP_WIDTH (map1);	1388	*dx = map1->width;
2328	*dy = 0;	1389	*dy = 0;
2329	}	1390	}
2330	else if (map1->tile_map[2] == map2)	1391	else if (map1->tile_map[2] == map2)
2331	{ /* down */	1392	{ /* down */
2332	*dx = 0;	1393	*dx = 0;
2333	*dy = MAP_HEIGHT (map1);	1394	*dy = map1->height;
2334	}	1395	}
2335	else if (map1->tile_map[3] == map2)	1396	else if (map1->tile_map[3] == map2)
2336	{ /* left */	1397	{ /* left */
2337	*dx = -MAP_WIDTH (map2);	1398	*dx = -map2->width;
2338	*dy = 0;	1399	*dy = 0;
2339
2340	}	1400	}
2341	else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[1] == map2)	1401	else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[1] == map2)
2342	{ /* up right */	1402	{ /* up right */
2343	*dx = MAP_WIDTH (map1->tile_map[0]);	1403	*dx = map1->tile_map[0]->width;
2344	*dy = -MAP_HEIGHT (map1->tile_map[0]);	1404	*dy = -map1->tile_map[0]->height;
2345	}	1405	}
2346	else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[3] == map2)	1406	else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[3] == map2)
2347	{ /* up left */	1407	{ /* up left */
2348	*dx = -MAP_WIDTH (map2);	1408	*dx = -map2->width;
2349	*dy = -MAP_HEIGHT (map1->tile_map[0]);	1409	*dy = -map1->tile_map[0]->height;
2350	}	1410	}
2351	else if (map1->tile_map[1] && map1->tile_map[1]->tile_map[0] == map2)	1411	else if (map1->tile_map[1] && map1->tile_map[1]->tile_map[0] == map2)
2352	{ /* right up */	1412	{ /* right up */
2353	*dx = MAP_WIDTH (map1);	1413	*dx = map1->width;
2354	*dy = -MAP_HEIGHT (map2);	1414	*dy = -map2->height;
2355	}	1415	}
2356	else if (map1->tile_map[1] && map1->tile_map[1]->tile_map[2] == map2)	1416	else if (map1->tile_map[1] && map1->tile_map[1]->tile_map[2] == map2)
2357	{ /* right down */	1417	{ /* right down */
2358	*dx = MAP_WIDTH (map1);	1418	*dx = map1->width;
2359	*dy = MAP_HEIGHT (map1->tile_map[1]);	1419	*dy = map1->tile_map[1]->height;
2360	}	1420	}
2361	else if (map1->tile_map[2] && map1->tile_map[2]->tile_map[1] == map2)	1421	else if (map1->tile_map[2] && map1->tile_map[2]->tile_map[1] == map2)
2362	{ /* down right */	1422	{ /* down right */
2363	*dx = MAP_WIDTH (map1->tile_map[2]);	1423	*dx = map1->tile_map[2]->width;
2364	*dy = MAP_HEIGHT (map1);	1424	*dy = map1->height;
2365	}	1425	}
2366	else if (map1->tile_map[2] && map1->tile_map[2]->tile_map[3] == map2)	1426	else if (map1->tile_map[2] && map1->tile_map[2]->tile_map[3] == map2)
2367	{ /* down left */	1427	{ /* down left */
2368	*dx = -MAP_WIDTH (map2);	1428	*dx = -map2->width;
2369	*dy = MAP_HEIGHT (map1);	1429	*dy = map1->height;
2370	}	1430	}
2371	else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[0] == map2)	1431	else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[0] == map2)
2372	{ /* left up */	1432	{ /* left up */
2373	*dx = -MAP_WIDTH (map1->tile_map[3]);	1433	*dx = -map1->tile_map[3]->width;
2374	*dy = -MAP_HEIGHT (map2);	1434	*dy = -map2->height;
2375	}	1435	}
2376	else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[2] == map2)	1436	else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[2] == map2)
2377	{ /* left down */	1437	{ /* left down */
2378	*dx = -MAP_WIDTH (map1->tile_map[3]);	1438	*dx = -map1->tile_map[3]->width;
2379	*dy = MAP_HEIGHT (map1->tile_map[3]);	1439	*dy = map1->tile_map[3]->height;
2380
2381	}	1440	}
2382	else	1441	else
2383	{ /* not "adjacent" enough */
2384	return 0;	1442	return 0;
2385	}
2386		1443
2387	return 1;	1444	return 1;
		1445	}
		1446
		1447	maptile *
		1448	maptile::xy_load (sint16 &x, sint16 &y)
		1449	{
		1450	maptile *map = xy_find (x, y);
		1451
		1452	if (map)
		1453	map->load_sync ();
		1454
		1455	return map;
		1456	}
		1457
		1458	maptile *
		1459	get_map_from_coord (maptile *m, sint16 *x, sint16 *y)
		1460	{
		1461	return m->xy_load (*x, *y);
2388	}	1462	}
2389		1463
2390	/* From map.c	1464	/* From map.c
2391	* This is used by get_player to determine where the other	1465	* This is used by get_player to determine where the other
2392	* creature is. get_rangevector takes into account map tiling,	1466	* creature is. get_rangevector takes into account map tiling,
2393	* so you just can not look the the map coordinates and get the	1467	* so you just can not look the the map coordinates and get the
2394	* righte value. distance_x/y are distance away, which	1468	* righte value. distance_x/y are distance away, which
2395	* can be negativbe. direction is the crossfire direction scheme	1469	* can be negative. direction is the crossfire direction scheme
2396	* that the creature should head. part is the part of the	1470	* that the creature should head. part is the part of the
2397	* monster that is closest.	1471	* monster that is closest.
2398	*	1472	*
2399	* get_rangevector looks at op1 and op2, and fills in the	1473	* get_rangevector looks at op1 and op2, and fills in the
2400	* structure for op1 to get to op2.	1474	* structure for op1 to get to op2.
…		…
2405	* be unexpected	1479	* be unexpected
2406	*	1480	*
2407	* currently, the only flag supported (0x1) is don't translate for	1481	* currently, the only flag supported (0x1) is don't translate for
2408	* closest body part of 'op1'	1482	* closest body part of 'op1'
2409	*/	1483	*/
2410
2411	void	1484	void
2412	get_rangevector (object *op1, object *op2, rv_vector * retval, int flags)	1485	get_rangevector (object *op1, object *op2, rv_vector * retval, int flags)
2413	{	1486	{
2414	if (!adjacent_map (op1->map, op2->map, &retval->distance_x, &retval->distance_y))	1487	if (!adjacent_map (op1->map, op2->map, &retval->distance_x, &retval->distance_y))
2415	{	1488	{
2416	/* be conservative and fill in _some_ data */	1489	/* be conservative and fill in _some_ data */
2417	retval->distance = 100000;	1490	retval->distance = 10000;
2418	retval->distance_x = 32767;	1491	retval->distance_x = 10000;
2419	retval->distance_y = 32767;	1492	retval->distance_y = 10000;
2420	retval->direction = 0;	1493	retval->direction = 0;
2421	retval->part = 0;	1494	retval->part = 0;
2422	}	1495	}
2423	else	1496	else
2424	{	1497	{
…		…
2429		1502
2430	best = op1;	1503	best = op1;
2431	/* If this is multipart, find the closest part now */	1504	/* If this is multipart, find the closest part now */
2432	if (!(flags & 0x1) && op1->more)	1505	if (!(flags & 0x1) && op1->more)
2433	{	1506	{
2434	object *tmp;
2435	int best_distance = retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y, tmpi;	1507	int best_distance = retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y, tmpi;
2436		1508
2437	/* we just take the offset of the piece to head to figure	1509	/* we just take the offset of the piece to head to figure
2438	* distance instead of doing all that work above again	1510	* distance instead of doing all that work above again
2439	* since the distance fields we set above are positive in the	1511	* since the distance fields we set above are positive in the
2440	* same axis as is used for multipart objects, the simply arithmetic	1512	* same axis as is used for multipart objects, the simply arithmetic
2441	* below works.	1513	* below works.
2442	*/	1514	*/
2443	for (tmp = op1->more; tmp != NULL; tmp = tmp->more)	1515	for (object *tmp = op1->more; tmp; tmp = tmp->more)
2444	{	1516	{
2445	tmpi = (op1->x - tmp->x + retval->distance_x) * (op1->x - tmp->x + retval->distance_x) +	1517	tmpi = (op1->x - tmp->x + retval->distance_x) * (op1->x - tmp->x + retval->distance_x) +
2446	(op1->y - tmp->y + retval->distance_y) * (op1->y - tmp->y + retval->distance_y);	1518	(op1->y - tmp->y + retval->distance_y) * (op1->y - tmp->y + retval->distance_y);
2447	if (tmpi < best_distance)	1519	if (tmpi < best_distance)
2448	{	1520	{
2449	best_distance = tmpi;	1521	best_distance = tmpi;
2450	best = tmp;	1522	best = tmp;
2451	}	1523	}
2452	}	1524	}
		1525
2453	if (best != op1)	1526	if (best != op1)
2454	{	1527	{
2455	retval->distance_x += op1->x - best->x;	1528	retval->distance_x += op1->x - best->x;
2456	retval->distance_y += op1->y - best->y;	1529	retval->distance_y += op1->y - best->y;
2457	}	1530	}
2458	}	1531	}
		1532
2459	retval->part = best;	1533	retval->part = best;
2460	retval->distance = isqrt (retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y);	1534	retval->distance = upos_max (abs (retval->distance_x), abs (retval->distance_y));
2461	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);	1535	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);
2462	}	1536	}
2463	}	1537	}
2464		1538
2465	/* this is basically the same as get_rangevector above, but instead of	1539	/* this is basically the same as get_rangevector above, but instead of
…		…
2470	* flags has no meaning for this function at this time - I kept it in to	1544	* flags has no meaning for this function at this time - I kept it in to
2471	* be more consistant with the above function and also in case they are needed	1545	* be more consistant with the above function and also in case they are needed
2472	* for something in the future. Also, since no object is pasted, the best	1546	* for something in the future. Also, since no object is pasted, the best
2473	* field of the rv_vector is set to NULL.	1547	* field of the rv_vector is set to NULL.
2474	*/	1548	*/
2475
2476	void	1549	void
2477	get_rangevector_from_mapcoord (const maptile *m, int x, int y, const object *op2, rv_vector * retval, int flags)	1550	get_rangevector_from_mapcoord (const maptile *m, int x, int y, const object *op2, rv_vector *retval, int flags)
2478	{	1551	{
2479	if (!adjacent_map (m, op2->map, &retval->distance_x, &retval->distance_y))	1552	if (!adjacent_map (m, op2->map, &retval->distance_x, &retval->distance_y))
2480	{	1553	{
2481	/* be conservative and fill in _some_ data */	1554	/* be conservative and fill in _some_ data */
2482	retval->distance = 100000;	1555	retval->distance = 100000;
…		…
2489	{	1562	{
2490	retval->distance_x += op2->x - x;	1563	retval->distance_x += op2->x - x;
2491	retval->distance_y += op2->y - y;	1564	retval->distance_y += op2->y - y;
2492		1565
2493	retval->part = NULL;	1566	retval->part = NULL;
2494	retval->distance = isqrt (retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y);	1567	retval->distance = idistance (retval->distance_x, retval->distance_y);
2495	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);	1568	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);
2496	}	1569	}
2497	}	1570	}
2498		1571
2499	/* Returns true of op1 and op2 are effectively on the same map	1572	/* Returns true of op1 and op2 are effectively on the same map
2500	* (as related to map tiling). Note that this looks for a path from	1573	* (as related to map tiling). Note that this looks for a path from
2501	* op1 to op2, so if the tiled maps are assymetric and op2 has a path	1574	* op1 to op2, so if the tiled maps are asymetric and op2 has a path
2502	* to op1, this will still return false.	1575	* to op1, this will still return false.
2503	* Note we only look one map out to keep the processing simple	1576	* Note we only look one map out to keep the processing simple
2504	* and efficient. This could probably be a macro.	1577	* and efficient. This could probably be a macro.
2505	* MSW 2001-08-05	1578	* MSW 2001-08-05
2506	*/	1579	*/
…		…
2509	{	1582	{
2510	int dx, dy;	1583	int dx, dy;
2511		1584
2512	return adjacent_map (op1->map, op2->map, &dx, &dy);	1585	return adjacent_map (op1->map, op2->map, &dx, &dy);
2513	}	1586	}
		1587
		1588	object *
		1589	maptile::insert (object *op, int x, int y, object *originator, int flags)
		1590	{
		1591	return insert_ob_in_map_at (op, this, originator, flags, x, y);
		1592	}
		1593
		1594	region *
		1595	maptile::region (int x, int y) const
		1596	{
		1597	if (regions
		1598	&& regionmap
		1599	&& !OUT_OF_REAL_MAP (this, x, y))
		1600	if (struct region *reg = regionmap [regions [y * width + x]])
		1601	return reg;
		1602
		1603	if (default_region)
		1604	return default_region;
		1605
		1606	return ::region::default_region ();
		1607	}
		1608
		1609	/* picks a random object from a style map.
		1610	*/
		1611	object *
		1612	maptile::pick_random_object (rand_gen &gen) const
		1613	{
		1614	/* while returning a null object will result in a crash, that
		1615	* is actually preferable to an infinite loop. That is because
		1616	* most servers will automatically restart in case of crash.
		1617	* Change the logic on getting the random space - shouldn't make
		1618	* any difference, but this seems clearer to me.
		1619	*/
		1620	for (int i = 1000; --i;)
		1621	{
		1622	object *pick = at (gen (width), gen (height)).bot;
		1623
		1624	// do not prefer big monsters just because they are big.
		1625	if (pick && pick->is_head ())
		1626	return pick->head_ ();
		1627	}
		1628
		1629	// instead of crashing in the unlikely(?) case, try to return *something*
		1630	return archetype::find ("bug");
		1631	}
		1632
		1633	void
		1634	maptile::play_sound (faceidx sound, int x, int y) const
		1635	{
		1636	if (!sound)
		1637	return;
		1638
		1639	for_all_players (pl)
		1640	if (pl->ob->map == this)
		1641	if (client *ns = pl->ns)
		1642	{
		1643	int dx = x - pl->ob->x;
		1644	int dy = y - pl->ob->y;
		1645
		1646	int distance = idistance (dx, dy);
		1647
		1648	if (distance <= MAX_SOUND_DISTANCE)
		1649	ns->play_sound (sound, dx, dy);
		1650	}
		1651	}
		1652

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