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Comparing deliantra/server/common/map.C (file contents):
Revision 1.54 by root, Wed Dec 27 13:13:46 2006 UTC vs.
Revision 1.111 by elmex, Thu Jul 12 18:28:09 2007 UTC

1	/*	1	/*
2	CrossFire, A Multiplayer game for X-windows	2	* This file is part of Crossfire TRT, the Roguelike Realtime MORPG.
3		3	*
		4	* Copyright (©) 2005,2006,2007 Marc Alexander Lehmann / Robin Redeker / the Crossfire TRT team
4	Copyright (C) 2001-2003 Mark Wedel & Crossfire Development Team	5	* Copyright (©) 2001-2003,2007 Mark Wedel & Crossfire Development Team
5	Copyright (C) 1992 Frank Tore Johansen	6	* Copyright (©) 1992,2007 Frank Tore Johansen
6		7	*
7	This program is free software; you can redistribute it and/or modify	8	* Crossfire TRT is free software: you can redistribute it and/or modify
8	it under the terms of the GNU General Public License as published by	9	* it under the terms of the GNU General Public License as published by
9	the Free Software Foundation; either version 2 of the License, or	10	* the Free Software Foundation, either version 3 of the License, or
10	(at your option) any later version.	11	* (at your option) any later version.
11		12	*
12	This program is distributed in the hope that it will be useful,	13	* This program is distributed in the hope that it will be useful,
13	but WITHOUT ANY WARRANTY; without even the implied warranty of	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15	GNU General Public License for more details.	16	* GNU General Public License for more details.
16		17	*
17	You should have received a copy of the GNU General Public License	18	* You should have received a copy of the GNU General Public License
18	along with this program; if not, write to the Free Software	19	* along with this program. If not, see <http://www.gnu.org/licenses/>.
19	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	20	*
20
21	The authors can be reached via e-mail at <crossfire@schmorp.de>	21	* The authors can be reached via e-mail to <crossfire@schmorp.de>
22	*/	22	*/
23		23
24	#include <global.h>
25	#include <funcpoint.h>
26
27	#include <loader.h>
28	#include <unistd.h>	24	#include <unistd.h>
29		25
		26	#include "global.h"
		27	#include "funcpoint.h"
		28
		29	#include "loader.h"
		30
30	#include "path.h"	31	#include "path.h"
31
32	/*
33	* Returns the maptile which has a name matching the given argument.
34	* return NULL if no match is found.
35	*/
36	maptile *
37	has_been_loaded (const char *name)
38	{
39	if (!name || !*name)
40	return 0;
41
42	for_all_maps (map)
43	if (!strcmp (name, map->path))
44	return map;
45
46	return 0;
47	}
48		32
49	/*	33	/*
50	* This makes a path absolute outside the world of Crossfire.	34	* This makes a path absolute outside the world of Crossfire.
51	* In other words, it prepends LIBDIR/MAPDIR/ to the given path	35	* In other words, it prepends LIBDIR/MAPDIR/ to the given path
52	* and returns the pointer to a static array containing the result.	36	* and returns the pointer to a static array containing the result.
53	* it really should be called create_mapname	37	* it really should be called create_mapname
54	*/	38	*/
55
56	const char *	39	const char *
57	create_pathname (const char *name)	40	create_pathname (const char *name)
58	{	41	{
59	static char buf[MAX_BUF];	42	static char buf[8192];
60
61	/* Why? having extra / doesn't confuse unix anyplace? Dependancies
62	* someplace else in the code? msw 2-17-97
63	*/
64	if (*name == '/')
65	sprintf (buf, "%s/%s%s", settings.datadir, settings.mapdir, name);
66	else
67	sprintf (buf, "%s/%s/%s", settings.datadir, settings.mapdir, name);	43	snprintf (buf, sizeof (buf), "%s/%s/%s", settings.datadir, settings.mapdir, name);
68	return (buf);	44	return buf;
69	}	45	}
70
71	/*
72	* same as create_pathname, but for the overlay maps.
73	*/
74
75	const char *
76	create_overlay_pathname (const char *name)
77	{
78	static char buf[MAX_BUF];
79
80	/* Why? having extra / doesn't confuse unix anyplace? Dependancies
81	* someplace else in the code? msw 2-17-97
82	*/
83	if (*name == '/')
84	sprintf (buf, "%s/%s%s", settings.localdir, settings.mapdir, name);
85	else
86	sprintf (buf, "%s/%s/%s", settings.localdir, settings.mapdir, name);
87	return (buf);
88	}
89
90	/*
91	* same as create_pathname, but for the template maps.
92	*/
93
94	const char *
95	create_template_pathname (const char *name)
96	{
97	static char buf[MAX_BUF];
98
99	/* Why? having extra / doesn't confuse unix anyplace? Dependancies
100	* someplace else in the code? msw 2-17-97
101	*/
102	if (*name == '/')
103	sprintf (buf, "%s/%s%s", settings.localdir, settings.templatedir, name);
104	else
105	sprintf (buf, "%s/%s/%s", settings.localdir, settings.templatedir, name);
106	return (buf);
107	}
108
109	/*
110	* This makes absolute path to the itemfile where unique objects
111	* will be saved. Converts '/' to '@'. I think it's essier maintain
112	* files than full directory structure, but if this is problem it can
113	* be changed.
114	*/
115	static const char *
116	create_items_path (const char *s)
117	{
118	static char buf[MAX_BUF];
119	char *t;
120
121	if (*s == '/')
122	s++;
123
124	sprintf (buf, "%s/%s/", settings.localdir, settings.uniquedir);
125
126	for (t = buf + strlen (buf); *s; s++, t++)
127	if (*s == '/')
128	*t = '@';
129	else
130	*t = *s;
131	*t = 0;
132	return (buf);
133	}
134
135		46
136	/*	47	/*
137	* This function checks if a file with the given path exists.	48	* This function checks if a file with the given path exists.
138	* -1 is returned if it fails, otherwise the mode of the file	49	* -1 is returned if it fails, otherwise the mode of the file
139	* is returned.	50	* is returned.
…		…
146	* the rest of the code only cares that the file is readable.	57	* the rest of the code only cares that the file is readable.
147	* when the editor goes away, the call to stat should probably be	58	* when the editor goes away, the call to stat should probably be
148	* replaced by an access instead (similar to the windows one, but	59	* replaced by an access instead (similar to the windows one, but
149	* that seems to be missing the prepend_dir processing	60	* that seems to be missing the prepend_dir processing
150	*/	61	*/
151
152	int	62	int
153	check_path (const char *name, int prepend_dir)	63	check_path (const char *name, int prepend_dir)
154	{	64	{
155	char buf[MAX_BUF];	65	char buf[MAX_BUF];
156		66
157	char *endbuf;	67	char *endbuf;
158	struct stat statbuf;	68	struct stat statbuf;
159	int mode = 0;	69	int mode = 0;
160		70
161	if (prepend_dir)	71	if (prepend_dir)
162	strcpy (buf, create_pathname (name));	72	assign (buf, create_pathname (name));
163	else	73	else
164	strcpy (buf, name);	74	assign (buf, name);
165		75
166	/* old method (strchr(buf, '\0')) seemd very odd to me -	76	/* old method (strchr(buf, '\0')) seemd very odd to me -
167	* this method should be equivalant and is clearer.	77	* this method should be equivalant and is clearer.
168	* Can not use strcat because we need to cycle through	78	* Can not use strcat because we need to cycle through
169	* all the names.	79	* all the names.
…		…
182	if ((statbuf.st_mode & S_IWGRP && getegid () == statbuf.st_gid) ||	92	if ((statbuf.st_mode & S_IWGRP && getegid () == statbuf.st_gid) ||
183	(statbuf.st_mode & S_IWUSR && geteuid () == statbuf.st_uid) || (statbuf.st_mode & S_IWOTH))	93	(statbuf.st_mode & S_IWUSR && geteuid () == statbuf.st_uid) || (statbuf.st_mode & S_IWOTH))
184	mode |= 2;	94	mode |= 2;
185		95
186	return (mode);	96	return (mode);
187	}
188
189	/*
190	* Prints out debug-information about a map.
191	* Dumping these at llevError doesn't seem right, but is
192	* necessary to make sure the information is in fact logged.
193	*/
194
195	void
196	dump_map (const maptile *m)
197	{
198	LOG (llevError, "Map %s status: %d.\n", m->path, m->in_memory);
199	LOG (llevError, "Size: %dx%d Start: %d,%d\n", m->width, m->height, m->enter_x, m->enter_y);
200
201	if (m->msg != NULL)
202	LOG (llevError, "Message:\n%s", m->msg);
203
204	if (m->maplore != NULL)
205	LOG (llevError, "Lore:\n%s", m->maplore);
206
207	if (m->tmpname != NULL)
208	LOG (llevError, "Tmpname: %s\n", m->tmpname);
209
210	LOG (llevError, "Difficulty: %d\n", m->difficulty);
211	LOG (llevError, "Darkness: %d\n", m->darkness);
212	}
213
214	/*
215	* Prints out debug-information about all maps.
216	* This basically just goes through all the maps and calls
217	* dump_map on each one.
218	*/
219
220	void
221	dump_all_maps (void)
222	{
223	for_all_maps (m)
224	dump_map (m);
225	}	97	}
226		98
227	/* This rolls up wall, blocks_magic, blocks_view, etc, all into	99	/* This rolls up wall, blocks_magic, blocks_view, etc, all into
228	* one function that just returns a P_.. value (see map.h)	100	* one function that just returns a P_.. value (see map.h)
229	* it will also do map translation for tiled maps, returning	101	* it will also do map translation for tiled maps, returning
…		…
235	* don't expect to insert/remove anything from those spaces.	107	* don't expect to insert/remove anything from those spaces.
236	*/	108	*/
237	int	109	int
238	get_map_flags (maptile *oldmap, maptile **newmap, sint16 x, sint16 y, sint16 *nx, sint16 *ny)	110	get_map_flags (maptile *oldmap, maptile **newmap, sint16 x, sint16 y, sint16 *nx, sint16 *ny)
239	{	111	{
240	sint16 newx, newy;
241	int retval = 0;
242	maptile *mp;
243
244	newx = x;	112	sint16 newx = x;
245	newy = y;	113	sint16 newy = y;
246		114
247	mp = get_map_from_coord (oldmap, &newx, &newy);	115	maptile *mp = get_map_from_coord (oldmap, &newx, &newy);
248		116
249	if (!mp)	117	if (!mp)
250	return P_OUT_OF_MAP;	118	return P_OUT_OF_MAP;
251
252	if (mp != oldmap)
253	retval |= P_NEW_MAP;
254		119
255	if (newmap) *newmap = mp;	120	if (newmap) *newmap = mp;
256	if (nx) *nx = newx;	121	if (nx) *nx = newx;
257	if (ny) *ny = newy;	122	if (ny) *ny = newy;
258		123
259	return retval | mp->at (newx, newy).flags ();	124	return mp->at (newx, newy).flags () | (mp != oldmap ? P_NEW_MAP : 0);
260	}	125	}
261		126
262	/*	127	/*
263	* Returns true if the given coordinate is blocked except by the	128	* Returns true if the given coordinate is blocked except by the
264	* object passed is not blocking. This is used with	129	* object passed is not blocking. This is used with
…		…
308	* let the player through (inventory checkers for example)	173	* let the player through (inventory checkers for example)
309	*/	174	*/
310	if (!(mflags & P_IS_ALIVE) && !OB_TYPE_MOVE_BLOCK (ob, blocked))	175	if (!(mflags & P_IS_ALIVE) && !OB_TYPE_MOVE_BLOCK (ob, blocked))
311	return 0;	176	return 0;
312		177
313	if (ob->head != NULL)
314	ob = ob->head;	178	ob = ob->head_ ();
315		179
316	/* We basically go through the stack of objects, and if there is	180	/* We basically go through the stack of objects, and if there is
317	* some other object that has NO_PASS or FLAG_ALIVE set, return	181	* some other object that has NO_PASS or FLAG_ALIVE set, return
318	* true. If we get through the entire stack, that must mean	182	* true. If we get through the entire stack, that must mean
319	* ob is blocking it, so return 0.	183	* ob is blocking it, so return 0.
…		…
349	else	213	else
350	{	214	{
351	/* Broke apart a big nasty if into several here to make	215	/* Broke apart a big nasty if into several here to make
352	* this more readable. first check - if the space blocks	216	* this more readable. first check - if the space blocks
353	* movement, can't move here.	217	* movement, can't move here.
354	* second - if a monster, can't move there, unles it is a	218	* second - if a monster, can't move there, unless it is a
355	* hidden dm	219	* hidden dm
356	*/	220	*/
357	if (OB_MOVE_BLOCK (ob, tmp))	221	if (OB_MOVE_BLOCK (ob, tmp))
358	return 1;	222	return 1;
359	if (QUERY_FLAG (tmp, FLAG_ALIVE) && tmp->head != ob && tmp != ob &&	223
360	tmp->type != DOOR && !(QUERY_FLAG (tmp, FLAG_WIZ) && tmp->contr->hidden))	224	if (tmp->flag [FLAG_ALIVE]
		225	&& tmp->head_ () != ob
		226	&& tmp != ob
		227	&& tmp->type != DOOR
		228	&& !(tmp->flag [FLAG_WIZ] && tmp->contr->hidden))
361	return 1;	229	return 1;
362	}	230	}
363		231
364	}	232	}
365	return 0;	233	return 0;
366	}	234	}
367
368		235
369	/*	236	/*
370	* Returns true if the given object can't fit in the given spot.	237	* Returns true if the given object can't fit in the given spot.
371	* This is meant for multi space objects - for single space objecs,	238	* This is meant for multi space objects - for single space objecs,
372	* just calling get_map_blocked and checking that against movement type	239	* just calling get_map_blocked and checking that against movement type
…		…
398	archetype *tmp;	265	archetype *tmp;
399	int flag;	266	int flag;
400	maptile *m1;	267	maptile *m1;
401	sint16 sx, sy;	268	sint16 sx, sy;
402		269
403	if (ob == NULL)	270	if (!ob)
404	{	271	{
405	flag = get_map_flags (m, &m1, x, y, &sx, &sy);	272	flag = get_map_flags (m, &m1, x, y, &sx, &sy);
406	if (flag & P_OUT_OF_MAP)	273	if (flag & P_OUT_OF_MAP)
407	return P_OUT_OF_MAP;	274	return P_OUT_OF_MAP;
408		275
409	/* don't have object, so don't know what types would block */	276	/* don't have object, so don't know what types would block */
410	return m1->at (sx, sy).move_block;	277	return m1->at (sx, sy).move_block;
411	}	278	}
412		279
413	for (tmp = ob->arch; tmp; tmp = tmp->more)	280	for (tmp = ob->arch; tmp; tmp = (archetype *)tmp->more)
414	{	281	{
415	flag = get_map_flags (m, &m1, x + tmp->clone.x, y + tmp->clone.y, &sx, &sy);	282	flag = get_map_flags (m, &m1, x + tmp->x, y + tmp->y, &sx, &sy);
416		283
417	if (flag & P_OUT_OF_MAP)	284	if (flag & P_OUT_OF_MAP)
418	return P_OUT_OF_MAP;	285	return P_OUT_OF_MAP;
419	if (flag & P_IS_ALIVE)	286	if (flag & P_IS_ALIVE)
420	return P_IS_ALIVE;	287	return P_IS_ALIVE;
421		288
422	mapspace &ms = m1->at (sx, sy);	289	mapspace &ms = m1->at (sx, sy);
423
424		290
425	/* find_first_free_spot() calls this function. However, often	291	/* find_first_free_spot() calls this function. However, often
426	* ob doesn't have any move type (when used to place exits)	292	* ob doesn't have any move type (when used to place exits)
427	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.	293	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.
428	*/	294	*/
…		…
444	* into inventory, but just links them. What this does is go through	310	* into inventory, but just links them. What this does is go through
445	* and insert them properly.	311	* and insert them properly.
446	* The object 'container' is the object that contains the inventory.	312	* The object 'container' is the object that contains the inventory.
447	* This is needed so that we can update the containers weight.	313	* This is needed so that we can update the containers weight.
448	*/	314	*/
449
450	void	315	void
451	fix_container (object *container)	316	fix_container (object *container)
452	{	317	{
453	object *tmp = container->inv, *next;	318	object *tmp = container->inv, *next;
454		319
455	container->inv = NULL;	320	container->inv = 0;
456	while (tmp != NULL)	321	while (tmp)
457	{	322	{
458	next = tmp->below;	323	next = tmp->below;
459	if (tmp->inv)	324	if (tmp->inv)
460	fix_container (tmp);	325	fix_container (tmp);
		326
461	(void) insert_ob_in_ob (tmp, container);	327	insert_ob_in_ob (tmp, container);
462	tmp = next;	328	tmp = next;
463	}	329	}
		330
464	/* sum_weight will go through and calculate what all the containers are	331	/* sum_weight will go through and calculate what all the containers are
465	* carrying.	332	* carrying.
466	*/	333	*/
467	sum_weight (container);	334	sum_weight (container);
468	}	335	}
469		336
		337	void
		338	maptile::set_object_flag (int flag, int value)
		339	{
		340	if (!spaces)
		341	return;
		342
		343	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		344	for (object *tmp = ms->bot; tmp; tmp = tmp->above)
		345	tmp->flag [flag] = value;
		346	}
		347
470	/* link_multipart_objects go through all the objects on the map looking	348	/* link_multipart_objects go through all the objects on the map looking
471	* for objects whose arch says they are multipart yet according to the	349	* for objects whose arch says they are multipart yet according to the
472	* info we have, they only have the head (as would be expected when	350	* info we have, they only have the head (as would be expected when
473	* they are saved). We do have to look for the old maps that did save	351	* they are saved).
474	* the more sections and not re-add sections for them.
475	*/	352	*/
476	static void	353	void
477	link_multipart_objects (maptile *m)	354	maptile::link_multipart_objects ()
478	{	355	{
479	int x, y;	356	if (!spaces)
480	object *tmp, *op, *last, *above;	357	return;
481	archetype *at;
482		358
483	for (x = 0; x < m->width; x++)	359	for (mapspace *ms = spaces + size (); ms-- > spaces; )
484	for (y = 0; y < m->height; y++)	360	{
485	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = above)	361	object *op = ms->bot;
		362	while (op)
486	{	363	{
487	above = tmp->above;
488
489	/* already multipart - don't do anything more */	364	/* already multipart - don't do anything more */
490	if (tmp->head || tmp->more)	365	if (op->head_ () == op && !op->more && op->arch->more)
491	continue;
492
493	/* If there is nothing more to this object, this for loop
494	* won't do anything.
495	*/
496	for (at = tmp->arch->more, last = tmp; at != NULL; at = at->more, last = op)
497	{	366	{
498	op = arch_to_object (at);	367	op->remove ();
		368	op->expand_tail ();
499		369
500	/* update x,y coordinates */	370	// FIXME: INS_ON_TOP is just a workaround for the pentagram vs.
501	op->x += tmp->x;	371	// multi-tile monster bug, where INS_ABOVE_FLOOR_ONLY put the monsters
502	op->y += tmp->y;	372	// below the pentagrams... hopefully INS_ON_TOP doesn't break anything
503	op->head = tmp;	373	insert (op, op->x, op->y, 0, INS_NO_MERGE | INS_ON_TOP | INS_NO_WALK_ON);
504	op->map = m;	374
505	last->more = op;	375	op = ms->bot; // we are mutating the mapspace too much with INS_ON_TOP
506	op->name = tmp->name;	376	// so we have to reset the iteration through the mapspace
507	op->title = tmp->title;
508	/* we could link all the parts onto tmp, and then just
509	* call insert_ob_in_map once, but the effect is the same,
510	* as insert_ob_in_map will call itself with each part, and
511	* the coding is simpler to just to it here with each part.
512	*/	377	}
513	insert_ob_in_map (op, op->map, tmp, INS_NO_MERGE | INS_ABOVE_FLOOR_ONLY | INS_NO_WALK_ON);	378	else
514	} /* for at = tmp->arch->more */	379	op = op->above;
515	} /* for objects on this space */	380	}
		381	}
516	}	382	}
517		383
518	/*	384	/*
519	* Loads (ands parses) the objects into a given map from the specified	385	* Loads (ands parses) the objects into a given map from the specified
520	* file pointer.	386	* file pointer.
521	* mapflags is the same as we get with load_original_map
522	*/	387	*/
523	void	388	bool
524	load_objects (maptile *m, object_thawer & fp, int mapflags)	389	maptile::_load_objects (object_thawer &f)
525	{	390	{
526	int i, j;	391	for (;;)
527	int unique;
528	object *op, *prev = NULL, *last_more = NULL, *otmp;
529
530	op = object::create ();
531	op->map = m; /* To handle buttons correctly */
532
533	while ((i = load_object (fp, op, mapflags)))
534	{	392	{
535	/* if the archetype for the object is null, means that we	393	coroapi::cede_to_tick_every (100); // cede once in a while
536	* got an invalid object. Don't do anything with it - the game	394
537	* or editor will not be able to do anything with it either.	395	switch (f.kw)
538	*/
539	if (op->arch == NULL)
540	{	396	{
541	LOG (llevDebug, "Discarding object without arch: %s\n", op->name ? (const char *) op->name : "(null)");	397	case KW_arch:
542	continue;	398	if (object *op = object::read (f, this))
543	}
544
545	switch (i)
546	{
547	case LL_NORMAL:
548	/* if we are loading an overlay, put the floors on the bottom */
549	if ((QUERY_FLAG (op, FLAG_IS_FLOOR) || QUERY_FLAG (op, FLAG_OVERLAY_FLOOR)) && mapflags & MAP_OVERLAY)
550	insert_ob_in_map (op, m, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ABOVE_FLOOR_ONLY | INS_MAP_LOAD);
551	else	399	{
		400	if (op->inv)
		401	sum_weight (op);
		402
552	insert_ob_in_map (op, m, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ON_TOP | INS_MAP_LOAD);	403	insert_ob_in_map (op, this, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ON_TOP | INS_MAP_LOAD);
		404	}
553		405
554	if (op->inv)	406	continue;
555	sum_weight (op);
556		407
557	prev = op, last_more = op;
558	break;
559
560	case LL_MORE:	408	case KW_EOF:
561	insert_ob_in_map (op, m, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ABOVE_FLOOR_ONLY);	409	return true;
562	op->head = prev, last_more->more = op, last_more = op;	410
		411	default:
		412	if (!f.parse_error ("map file"))
		413	return false;
563	break;	414	break;
564	}	415	}
565		416
566	if (mapflags & MAP_STYLE)	417	f.next ();
567	remove_from_active_list (op);
568
569	op = object::create ();
570	op->map = m;
571	}
572
573	for (i = 0; i < m->width; i++)
574	{	418	}
575	for (j = 0; j < m->height; j++)	419
		420	return true;
		421	}
		422
		423	void
		424	maptile::activate ()
		425	{
		426	active = true;
		427
		428	if (spaces)
		429	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		430	for (object *op = ms->bot; op; op = op->above)
		431	op->activate_recursive ();
		432	}
		433
		434	void
		435	maptile::deactivate ()
		436	{
		437	active = false;
		438
		439	if (spaces)
		440	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		441	for (object *op = ms->bot; op; op = op->above)
		442	op->deactivate_recursive ();
		443	}
		444
		445	bool
		446	maptile::_save_objects (object_freezer &f, int flags)
		447	{
		448	coroapi::cede_to_tick ();
		449
		450	if (flags & IO_HEADER)
		451	_save_header (f);
		452
		453	if (!spaces)
		454	return false;
		455
		456	for (int i = 0; i < size (); ++i)
		457	{
		458	int unique = 0;
		459	for (object *op = spaces [i].bot; op; op = op->above)
576	{	460	{
		461	if (op->flag [FLAG_UNIQUE] && op->flag [FLAG_IS_FLOOR])
577	unique = 0;	462	unique = 1;
578	/* check for unique items, or unique squares */	463
579	for (otmp = GET_MAP_OB (m, i, j); otmp; otmp = otmp->above)	464	if (!op->can_map_save ())
		465	continue;
		466
		467	if (unique || op->flag [FLAG_UNIQUE])
580	{	468	{
581	if (QUERY_FLAG (otmp, FLAG_UNIQUE) || QUERY_FLAG (otmp, FLAG_OBJ_SAVE_ON_OVL))	469	if (flags & IO_UNIQUES)
582	unique = 1;	470	op->write (f);
583
584	if (!(mapflags & (MAP_OVERLAY | MAP_PLAYER_UNIQUE) || unique))
585	SET_FLAG (otmp, FLAG_OBJ_ORIGINAL);
586	}	471	}
		472	else if (flags & IO_OBJECTS)
		473	op->write (f);
587	}	474	}
588	}	475	}
589		476
590	op->destroy ();	477	coroapi::cede_to_tick ();
591	link_multipart_objects (m);
592	}
593		478
594	/* This saves all the objects on the map in a non destructive fashion.	479	return true;
595	* Modified by MSW 2001-07-01 to do in a single pass - reduces code,	480	}
596	* and we only save the head of multi part objects - this is needed
597	* in order to do map tiling properly.
598	*/
599	void
600	save_objects (maptile *m, object_freezer &fp, object_freezer &fp2, int flag)
601	{
602	int i, j = 0, unique = 0;
603	object *op;
604		481
605	/* first pass - save one-part objects */	482	bool
606	for (i = 0; i < m->width; i++)	483	maptile::_load_objects (const char *path, bool skip_header)
607	for (j = 0; j < m->height; j++)	484	{
		485	object_thawer f (path);
		486
		487	if (!f)
		488	return false;
		489
		490	f.next ();
		491
		492	if (skip_header)
		493	for (;;)
608	{	494	{
609	unique = 0;	495	keyword kw = f.kw;
610		496	f.skip ();
611	for (op = m->at (i, j).bot; op; op = op->above)	497	if (kw == KW_end)
612	{	498	break;
613	if (op->flag [FLAG_UNIQUE] && op->flag [FLAG_IS_FLOOR])
614	unique = 1;
615
616	if (!op->can_map_save ())
617	continue;
618
619	if (unique || op->flag [FLAG_UNIQUE])
620	save_object (fp2, op, 1);
621	else if (flag == 0 || (flag == 2 && (!op->flag [FLAG_OBJ_ORIGINAL] && !op->flag [FLAG_UNPAID])))
622	save_object (fp, op, 1);
623	}
624	}	499	}
		500
		501	return _load_objects (f);
		502	}
		503
		504	bool
		505	maptile::_save_objects (const char *path, int flags)
		506	{
		507	object_freezer freezer;
		508
		509	if (!_save_objects (freezer, flags))
		510	return false;
		511
		512	return freezer.save (path);
625	}	513	}
626		514
627	maptile::maptile ()	515	maptile::maptile ()
628	{	516	{
629	in_memory = MAP_SWAPPED;	517	in_memory = MAP_SWAPPED;
630		518
631	/* The maps used to pick up default x and y values from the	519	/* The maps used to pick up default x and y values from the
632	* map archetype. Mimic that behaviour.	520	* map archetype. Mimic that behaviour.
633	*/	521	*/
		522	width = 16;
		523	height = 16;
		524	timeout = 300;
		525	max_nrof = 1000; // 1000 items of anything
		526	max_volume = 2000000; // 2m³
		527	}
		528
		529	maptile::maptile (int w, int h)
		530	{
		531	in_memory = MAP_SWAPPED;
		532
634	width = 16;	533	width = w;
635	height = 16;	534	height = h;
636	reset_timeout = 0;	535	reset_timeout = 0;
637	timeout = 300;	536	timeout = 300;
638	enter_x = 0;	537	enter_x = 0;
639	enter_y = 0;	538	enter_y = 0;
640	/*set part to -1 indicating conversion to weather map not yet done */
641	worldpartx = -1;
642	worldparty = -1;
643	}
644		539
645	void	540	alloc ();
646	maptile::link ()
647	{
648	next = first_map;
649	first_map = this;
650	}
651
652	void
653	maptile::unlink ()
654	{
655	if (first_map == this)
656	first_map = next;
657	else
658	for_all_maps (m)
659	if (m->next = this)
660	{
661	m->next = next;
662	break;
663	}
664	}
665
666	/*
667	* Allocates, initialises, and returns a pointer to a maptile.
668	* Modified to no longer take a path option which was not being
669	* used anyways. MSW 2001-07-01
670	*/
671	maptile *
672	get_linked_map (void)
673	{
674	maptile *map = new maptile;
675	map->link ();
676	return map;
677	}	541	}
678		542
679	/*	543	/*
680	* Allocates the arrays contained in a maptile.	544	* Allocates the arrays contained in a maptile.
681	* This basically allocates the dynamic array of spaces for the	545	* This basically allocates the dynamic array of spaces for the
682	* map.	546	* map.
683	*/	547	*/
684	void	548	void
685	maptile::allocate ()	549	maptile::alloc ()
686	{	550	{
687	in_memory = MAP_IN_MEMORY;
688
689	/* Log this condition and free the storage. We could I suppose
690	* realloc, but if the caller is presuming the data will be intact,
691	* that is their poor assumption.
692	*/
693	if (spaces)	551	if (spaces)
694	{	552	return;
695	LOG (llevError, "allocate_map called with already allocated map (%s)\n", path);
696	sfree (spaces, size ());
697	}
698		553
699	spaces = salloc0<mapspace> (size ());	554	spaces = salloc0<mapspace> (size ());
700	}
701
702	/* Create and returns a map of the specific size. Used
703	* in random map code and the editor.
704	*/
705	maptile *
706	get_empty_map (int sizex, int sizey)
707	{
708	maptile *m = get_linked_map ();
709
710	m->width = sizex;
711	m->height = sizey;
712	m->in_memory = MAP_SWAPPED;
713	m->allocate ();
714
715	return m;
716	}	555	}
717		556
718	/* Takes a string from a map definition and outputs a pointer to the array of shopitems	557	/* Takes a string from a map definition and outputs a pointer to the array of shopitems
719	* corresponding to that string. Memory is allocated for this, it must be freed	558	* corresponding to that string. Memory is allocated for this, it must be freed
720	* at a later date.	559	* at a later date.
721	* Called by parse_map_headers below.	560	* Called by parse_map_headers below.
722	*/	561	*/
723
724	static shopitems *	562	static shopitems *
725	parse_shop_string (const char *input_string)	563	parse_shop_string (const char *input_string)
726	{	564	{
727	char *shop_string, *p, *q, *next_semicolon, *next_colon;	565	char *shop_string, *p, *q, *next_semicolon, *next_colon;
728	shopitems *items = NULL;	566	shopitems *items = NULL;
…		…
837	* put all the stuff in the map object so that names actually make	675	* put all the stuff in the map object so that names actually make
838	* sense.	676	* sense.
839	* This could be done in lex (like the object loader), but I think	677	* This could be done in lex (like the object loader), but I think
840	* currently, there are few enough fields this is not a big deal.	678	* currently, there are few enough fields this is not a big deal.
841	* MSW 2001-07-01	679	* MSW 2001-07-01
842	* return 0 on success, 1 on failure.
843	*/	680	*/
844		681	bool
845	static int	682	maptile::_load_header (object_thawer &thawer)
846	load_map_header (object_thawer & fp, maptile *m)
847	{	683	{
848	char buf[HUGE_BUF], msgbuf[HUGE_BUF], maplorebuf[HUGE_BUF], *key = NULL, *value, *end;	684	for (;;)
849	int msgpos = 0;
850	int maplorepos = 0;
851
852	while (fgets (buf, HUGE_BUF, fp) != NULL)
853	{	685	{
854	buf[HUGE_BUF - 1] = 0;	686	thawer.next ();
855	key = buf;
856		687
857	while (isspace (*key))	688	switch (thawer.kw)
858	key++;
859
860	if (*key == 0)
861	continue; /* empty line */
862
863	value = strchr (key, ' ');
864
865	if (!value)
866	{	689	{
867	if ((end = strchr (key, '\n')))	690	case KW_msg:
868	*end = 0;	691	thawer.get_ml (KW_endmsg, msg);
		692	break;
		693
		694	case KW_lore: // CF+ extension
		695	thawer.get_ml (KW_endlore, maplore);
		696	break;
		697
		698	case KW_maplore:
		699	thawer.get_ml (KW_endmaplore, maplore);
		700	break;
		701
		702	case KW_arch:
		703	if (strcmp (thawer.get_str (), "map"))
		704	LOG (llevError, "%s: loading map and got a non 'arch map' line (arch %s), skipping.\n", &path, thawer.get_str ());
		705	break;
		706
		707	case KW_oid:
		708	thawer.get (this, thawer.get_sint32 ());
		709	break;
		710
		711	case KW_file_format_version: break; // nop
		712
		713	case KW_name: thawer.get (name); break;
		714	case KW_attach: thawer.get (attach); break;
		715	case KW_reset_time: thawer.get (reset_time); break;
		716	case KW_shopgreed: thawer.get (shopgreed); break;
		717	case KW_shopmin: thawer.get (shopmin); break;
		718	case KW_shopmax: thawer.get (shopmax); break;
		719	case KW_shoprace: thawer.get (shoprace); break;
		720	case KW_outdoor: thawer.get (outdoor); break;
		721	case KW_temp: thawer.get (temp); break;
		722	case KW_pressure: thawer.get (pressure); break;
		723	case KW_humid: thawer.get (humid); break;
		724	case KW_windspeed: thawer.get (windspeed); break;
		725	case KW_winddir: thawer.get (winddir); break;
		726	case KW_sky: thawer.get (sky); break;
		727
		728	case KW_per_player: thawer.get (per_player); break;
		729	case KW_per_party: thawer.get (per_party); break;
		730	case KW_no_reset: thawer.get (no_reset); break;
		731
		732	case KW_region: default_region = region::find (thawer.get_str ()); break;
		733	case KW_shopitems: shopitems = parse_shop_string (thawer.get_str ()); break;
		734
		735	// old names new names
		736	case KW_hp: case KW_enter_x: thawer.get (enter_x); break;
		737	case KW_sp: case KW_enter_y: thawer.get (enter_y); break;
		738	case KW_x: case KW_width: thawer.get (width); break;
		739	case KW_y: case KW_height: thawer.get (height); break;
		740	case KW_weight: case KW_reset_timeout: thawer.get (reset_timeout); break;
		741	case KW_value: case KW_swap_time: thawer.get (timeout); break;
		742	case KW_level: case KW_difficulty: thawer.get (difficulty); difficulty = clamp (difficulty, 1, settings.max_level); break;
		743	case KW_invisible: case KW_darkness: thawer.get (darkness); break;
		744	case KW_stand_still: case KW_fixed_resettime: thawer.get (fixed_resettime); break;
		745
		746	case KW_tile_path_1: thawer.get (tile_path [0]); break;
		747	case KW_tile_path_2: thawer.get (tile_path [1]); break;
		748	case KW_tile_path_3: thawer.get (tile_path [2]); break;
		749	case KW_tile_path_4: thawer.get (tile_path [3]); break;
		750
		751	case KW_end:
		752	return true;
		753
		754	default:
		755	if (!thawer.parse_error ("map", 0))
		756	return false;
		757	break;
869	}	758	}
870	else
871	{
872	*value = 0;
873	value++;
874	end = strchr (value, '\n');
875
876	while (isspace (*value))
877	{
878	value++;
879
880	if (*value == '\0' || value == end)
881	{
882	/* Nothing but spaces. */
883	value = NULL;
884	break;
885	}
886	}
887	}
888
889	if (!end)
890	{
891	LOG (llevError, "Error loading map header - did not find a newline - perhaps file is truncated? Buf=%s\n", buf);
892	return 1;
893	}
894
895	/* key is the field name, value is what it should be set
896	* to. We've already done the work to null terminate key,
897	* and strip off any leading spaces for both of these.
898	* We have not touched the newline at the end of the line -
899	* these are needed for some values. the end pointer
900	* points to the first of the newlines.
901	* value could be NULL! It would be easy enough to just point
902	* this to "" to prevent cores, but that would let more errors slide
903	* through.
904	*
905	* First check for entries that do not use the value parameter, then
906	* validate that value is given and check for the remaining entries
907	* that use the parameter.
908	*/
909
910	if (!strcmp (key, "msg"))
911	{
912	while (fgets (buf, HUGE_BUF, fp) != NULL)
913	{
914	if (!strcmp (buf, "endmsg\n"))
915	break;
916	else
917	{
918	/* slightly more efficient than strcat */
919	strcpy (msgbuf + msgpos, buf);
920	msgpos += strlen (buf);
921	}
922	}
923	/* There are lots of maps that have empty messages (eg, msg/endmsg
924	* with nothing between). There is no reason in those cases to
925	* keep the empty message. Also, msgbuf contains garbage data
926	* when msgpos is zero, so copying it results in crashes
927	*/
928	if (msgpos != 0)
929	m->msg = strdup (msgbuf);
930	}
931	else if (!strcmp (key, "maplore"))
932	{
933	while (fgets (buf, HUGE_BUF, fp) != NULL)
934	{
935	if (!strcmp (buf, "endmaplore\n"))
936	break;
937	else
938	{
939	/* slightly more efficient than strcat */
940	strcpy (maplorebuf + maplorepos, buf);
941	maplorepos += strlen (buf);
942	}
943	}
944	if (maplorepos != 0)
945	m->maplore = strdup (maplorebuf);
946	}
947	else if (!strcmp (key, "end"))
948	{
949	break;
950	}
951	else if (value == NULL)
952	{
953	LOG (llevError, "Got '%s' line without parameter in map header\n", key);
954	}
955	else if (!strcmp (key, "arch"))
956	{
957	/* This is an oddity, but not something we care about much. */
958	if (strcmp (value, "map\n"))
959	LOG (llevError, "loading map and got a non 'arch map' line(%s %s)?\n", key, value);
960	}
961	else if (!strcmp (key, "name"))
962	{
963	*end = 0;
964	m->name = strdup (value);
965	}
966	/* first strcmp value on these are old names supported
967	* for compatibility reasons. The new values (second) are
968	* what really should be used.
969	*/
970	else if (!strcmp (key, "oid"))
971	fp.get (m, atoi (value));
972	else if (!strcmp (key, "attach"))
973	m->attach = value;
974	else if (!strcmp (key, "hp") || !strcmp (key, "enter_x"))
975	m->enter_x = atoi (value);
976	else if (!strcmp (key, "sp") || !strcmp (key, "enter_y"))
977	m->enter_y = atoi (value);
978	else if (!strcmp (key, "x") || !strcmp (key, "width"))
979	m->width = atoi (value);
980	else if (!strcmp (key, "y") || !strcmp (key, "height"))
981	m->height = atoi (value);
982	else if (!strcmp (key, "weight") || !strcmp (key, "reset_timeout"))
983	m->reset_timeout = atoi (value);
984	else if (!strcmp (key, "value") || !strcmp (key, "swap_time"))
985	m->timeout = atoi (value);
986	else if (!strcmp (key, "level") || !strcmp (key, "difficulty"))
987	m->difficulty = clamp (atoi (value), 1, settings.max_level);
988	else if (!strcmp (key, "invisible") || !strcmp (key, "darkness"))
989	m->darkness = atoi (value);
990	else if (!strcmp (key, "stand_still") || !strcmp (key, "fixed_resettime"))
991	m->fixed_resettime = atoi (value);
992	else if (!strcmp (key, "unique"))
993	m->unique = atoi (value);
994	else if (!strcmp (key, "template"))
995	m->templatemap = atoi (value);
996	else if (!strcmp (key, "region"))
997	m->region = get_region_by_name (value);
998	else if (!strcmp (key, "shopitems"))
999	{
1000	*end = 0;
1001	m->shopitems = parse_shop_string (value);
1002	}
1003	else if (!strcmp (key, "shopgreed"))
1004	m->shopgreed = atof (value);
1005	else if (!strcmp (key, "shopmin"))
1006	m->shopmin = atol (value);
1007	else if (!strcmp (key, "shopmax"))
1008	m->shopmax = atol (value);
1009	else if (!strcmp (key, "shoprace"))
1010	{
1011	*end = 0;
1012	m->shoprace = strdup (value);
1013	}
1014	else if (!strcmp (key, "outdoor"))
1015	m->outdoor = atoi (value);
1016	else if (!strcmp (key, "temp"))
1017	m->temp = atoi (value);
1018	else if (!strcmp (key, "pressure"))
1019	m->pressure = atoi (value);
1020	else if (!strcmp (key, "humid"))
1021	m->humid = atoi (value);
1022	else if (!strcmp (key, "windspeed"))
1023	m->windspeed = atoi (value);
1024	else if (!strcmp (key, "winddir"))
1025	m->winddir = atoi (value);
1026	else if (!strcmp (key, "sky"))
1027	m->sky = atoi (value);
1028	else if (!strcmp (key, "nosmooth"))
1029	m->nosmooth = atoi (value);
1030	else if (!strncmp (key, "tile_path_", 10))
1031	{
1032	int tile = atoi (key + 10);
1033
1034	if (tile < 1 || tile > 4)
1035	{
1036	LOG (llevError, "load_map_header: tile location %d out of bounds (%s)\n", tile, m->path);
1037	}
1038	else
1039	{
1040	char *path;
1041
1042	*end = 0;
1043
1044	if (m->tile_path[tile - 1])
1045	{
1046	LOG (llevError, "load_map_header: tile location %d duplicated (%s)\n", tile, m->path);
1047	free (m->tile_path[tile - 1]);
1048	m->tile_path[tile - 1] = NULL;
1049	}
1050
1051	if (check_path (value, 1) != -1)
1052	{
1053	/* The unadorned path works. */
1054	path = value;
1055	}
1056	else
1057	{
1058	/* Try again; it could be a relative exit. */
1059
1060	path = path_combine_and_normalize (m->path, value);
1061
1062	if (check_path (path, 1) == -1)
1063	{
1064	LOG (llevError, "get_map_header: Bad tile path %s %s\n", m->path, value);
1065	path = NULL;
1066	}
1067	}
1068
1069	if (editor)
1070	{
1071	/* Use the value as in the file. */
1072	m->tile_path[tile - 1] = strdup (value);
1073	}
1074	else if (path != NULL)
1075	{
1076	/* Use the normalized value. */
1077	m->tile_path[tile - 1] = strdup (path);
1078	}
1079	} /* end if tile direction (in)valid */
1080	}
1081	else
1082	LOG (llevError, "Got unknown value in map header: %s %s\n", key, value);
1083	}
1084
1085	if (!key || strcmp (key, "end"))
1086	{	759	}
1087	LOG (llevError, "Got premature eof on map header!\n");
1088	return 1;
1089	}
1090		760
1091	return 0;	761	abort ();
1092	}	762	}
1093		763
1094	/*	764	bool
1095	* Opens the file "filename" and reads information about the map	765	maptile::_load_header (const char *path)
1096	* from the given file, and stores it in a newly allocated
1097	* maptile. A pointer to this structure is returned, or NULL on failure.
1098	* flags correspond to those in map.h. Main ones used are
1099	* MAP_PLAYER_UNIQUE, in which case we don't do any name changes, and
1100	* MAP_BLOCK, in which case we block on this load. This happens in all
1101	* cases, no matter if this flag is set or not.
1102	* MAP_STYLE: style map - don't add active objects, don't add to server
1103	* managed map list.
1104	*/
1105	maptile *
1106	load_original_map (const char *filename, int flags)
1107	{	766	{
1108	maptile *m;
1109	char pathname[MAX_BUF];
1110
1111	if (flags & MAP_PLAYER_UNIQUE)
1112	strcpy (pathname, filename);
1113	else if (flags & MAP_OVERLAY)
1114	strcpy (pathname, create_overlay_pathname (filename));
1115	else
1116	strcpy (pathname, create_pathname (filename));
1117
1118	LOG (llevDebug, "load_original_map(%x): %s (%s)\n", flags, filename, pathname);
1119
1120	object_thawer thawer (pathname);	767	object_thawer thawer (path);
1121		768
1122	if (!thawer)	769	if (!thawer)
1123	return 0;	770	return false;
1124		771
1125	m = get_linked_map ();	772	return _load_header (thawer);
1126
1127	strcpy (m->path, filename);
1128	if (load_map_header (thawer, m))
1129	{
1130	LOG (llevError, "Error loading map header for %s, flags=%d\n", filename, flags);
1131	delete_map (m);
1132	return 0;
1133	}
1134
1135	m->allocate ();
1136
1137	m->in_memory = MAP_LOADING;
1138	load_objects (m, thawer, flags & (MAP_BLOCK | MAP_STYLE));
1139
1140	m->in_memory = MAP_IN_MEMORY;
1141	if (!m->difficulty)
1142	m->difficulty = calculate_difficulty (m);
1143	set_map_reset_time (m);
1144	m->instantiate ();
1145	return (m);
1146	}
1147
1148	/*
1149	* Loads a map, which has been loaded earlier, from file.
1150	* Return the map object we load into (this can change from the passed
1151	* option if we can't find the original map)
1152	*/
1153	static maptile *
1154	load_temporary_map (maptile *m)
1155	{
1156	char buf[MAX_BUF];
1157
1158	if (!m->tmpname)
1159	{
1160	LOG (llevError, "No temporary filename for map %s\n", m->path);
1161	strcpy (buf, m->path);
1162	delete_map (m);
1163	m = load_original_map (buf, 0);
1164	if (m == NULL)
1165	return NULL;
1166	fix_auto_apply (m); /* Chests which open as default */
1167	return m;
1168	}
1169
1170	object_thawer thawer (m->tmpname);
1171
1172	if (!thawer)
1173	{
1174	strcpy (buf, m->path);
1175	delete_map (m);
1176	m = load_original_map (buf, 0);
1177	if (!m)
1178	return NULL;
1179	fix_auto_apply (m); /* Chests which open as default */
1180	return m;
1181	}
1182
1183	if (load_map_header (thawer, m))
1184	{
1185	LOG (llevError, "Error loading map header for %s (%s)\n", m->path, m->tmpname);
1186	delete_map (m);
1187	m = load_original_map (m->path, 0);
1188	return NULL;
1189	}
1190
1191	m->allocate ();
1192
1193	m->in_memory = MAP_LOADING;
1194	load_objects (m, thawer, 0);
1195
1196	m->in_memory = MAP_IN_MEMORY;
1197	INVOKE_MAP (SWAPIN, m);
1198	return m;
1199	}
1200
1201	/*
1202	* Loads a map, which has been loaded earlier, from file.
1203	* Return the map object we load into (this can change from the passed
1204	* option if we can't find the original map)
1205	*/
1206	maptile *
1207	load_overlay_map (const char *filename, maptile *m)
1208	{
1209	char pathname[MAX_BUF];
1210
1211	strcpy (pathname, create_overlay_pathname (filename));
1212
1213	object_thawer thawer (pathname);
1214
1215	if (!thawer)
1216	return m;
1217
1218	if (load_map_header (thawer, m))
1219	{
1220	LOG (llevError, "Error loading map header for overlay %s (%s)\n", m->path, pathname);
1221	delete_map (m);
1222	m = load_original_map (m->path, 0);
1223	return 0;
1224	}
1225	/*m->allocate ();*/
1226
1227	m->in_memory = MAP_LOADING;
1228	load_objects (m, thawer, MAP_OVERLAY);
1229
1230	m->in_memory = MAP_IN_MEMORY;
1231	return m;
1232	}	773	}
1233		774
1234	/******************************************************************************	775	/******************************************************************************
1235	* This is the start of unique map handling code	776	* This is the start of unique map handling code
1236	*****************************************************************************/	777	*****************************************************************************/
1237		778
1238	/* This goes through map 'm' and removed any unique items on the map. */	779	/* This goes through the maptile and removed any unique items on the map. */
1239	static void	780	void
1240	delete_unique_items (maptile *m)	781	maptile::clear_unique_items ()
1241	{	782	{
1242	int i, j, unique;	783	for (int i = 0; i < size (); ++i)
1243	object *op, *next;
1244
1245	for (i = 0; i < m->width; i++)
1246	for (j = 0; j < m->height; j++)
1247	{	784	{
1248	unique = 0;	785	int unique = 0;
1249		786	for (object *op = spaces [i].bot; op; )
1250	for (op = GET_MAP_OB (m, i, j); op; op = next)
1251	{	787	{
1252	next = op->above;	788	object *above = op->above;
1253		789
1254	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))	790	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))
1255	unique = 1;	791	unique = 1;
1256		792
1257	if (op->head == NULL && (QUERY_FLAG (op, FLAG_UNIQUE) || unique))	793	if (op->head_ () == op && (QUERY_FLAG (op, FLAG_UNIQUE) || unique))
1258	{	794	{
1259	op->destroy_inv (false);	795	op->destroy_inv (false);
1260	op->destroy ();	796	op->destroy ();
1261	}	797	}
1262	}
1263	}
1264	}
1265		798
1266	/*	799	op = above;
1267	* Loads unique objects from file(s) into the map which is in memory
1268	* m is the map to load unique items into.
1269	*/
1270	static void
1271	load_unique_objects (maptile *m)
1272	{
1273	int count;
1274	char firstname[MAX_BUF];
1275
1276	for (count = 0; count < 10; count++)
1277	{
1278	sprintf (firstname, "%s.v%02d", create_items_path (m->path), count);
1279	if (!access (firstname, R_OK))
1280	break;
1281	}
1282	/* If we get here, we did not find any map */
1283	if (count == 10)
1284	return;
1285
1286	object_thawer thawer (firstname);
1287
1288	if (!thawer)
1289	return;
1290
1291	m->in_memory = MAP_LOADING;
1292	if (m->tmpname == NULL) /* if we have loaded unique items from */
1293	delete_unique_items (m); /* original map before, don't duplicate them */
1294
1295	load_objects (m, thawer, 0);
1296
1297	m->in_memory = MAP_IN_MEMORY;
1298	}
1299
1300	/*
1301	* Saves a map to file. If flag is set, it is saved into the same
1302	* file it was (originally) loaded from. Otherwise a temporary
1303	* filename will be genarated, and the file will be stored there.
1304	* The temporary filename will be stored in the maptileure.
1305	* If the map is unique, we also save to the filename in the map
1306	* (this should have been updated when first loaded)
1307	*/
1308	int
1309	new_save_map (maptile *m, int flag)
1310	{
1311	char filename[MAX_BUF], buf[MAX_BUF], shop[MAX_BUF];
1312	int i;
1313
1314	if (flag && !*m->path)
1315	{
1316	LOG (llevError, "Tried to save map without path.\n");
1317	return -1;
1318	}
1319
1320	if (flag || (m->unique) || (m->templatemap))
1321	{
1322	if (!m->unique && !m->templatemap)
1323	{ /* flag is set */
1324	if (flag == 2)
1325	strcpy (filename, create_overlay_pathname (m->path));
1326	else
1327	strcpy (filename, create_pathname (m->path));
1328	}	800	}
1329	else
1330	strcpy (filename, m->path);
1331
1332	make_path_to_file (filename);
1333	}
1334	else
1335	{	801	}
1336	if (!m->tmpname)	802	}
1337	m->tmpname = tempnam (settings.tmpdir, NULL);
1338		803
1339	strcpy (filename, m->tmpname);	804	bool
		805	maptile::_save_header (object_freezer &freezer)
		806	{
		807	#define MAP_OUT(k) freezer.put (KW_ ## k, k)
		808	#define MAP_OUT2(k,v) freezer.put (KW_ ## k, v)
		809
		810	MAP_OUT2 (arch, "map");
		811
		812	if (name) MAP_OUT (name);
		813	MAP_OUT (swap_time);
		814	MAP_OUT (reset_time);
		815	MAP_OUT (reset_timeout);
		816	MAP_OUT (fixed_resettime);
		817	MAP_OUT (no_reset);
		818	MAP_OUT (difficulty);
		819
		820	if (default_region) MAP_OUT2 (region, default_region->name);
		821
		822	if (shopitems)
1340	}	823	{
		824	char shop[MAX_BUF];
		825	print_shop_string (this, shop);
		826	MAP_OUT2 (shopitems, shop);
		827	}
1341		828
1342	LOG (llevDebug, "Saving map %s to %s\n", m->path, filename);	829	MAP_OUT (shopgreed);
1343	m->in_memory = MAP_SAVING;	830	MAP_OUT (shopmin);
		831	MAP_OUT (shopmax);
		832	if (shoprace) MAP_OUT (shoprace);
		833	MAP_OUT (darkness);
		834	MAP_OUT (width);
		835	MAP_OUT (height);
		836	MAP_OUT (enter_x);
		837	MAP_OUT (enter_y);
1344		838
		839	if (msg) freezer.put (KW_msg , KW_endmsg , msg);
		840	if (maplore) freezer.put (KW_maplore, KW_endmaplore, maplore);
		841
		842	MAP_OUT (outdoor);
		843	MAP_OUT (temp);
		844	MAP_OUT (pressure);
		845	MAP_OUT (humid);
		846	MAP_OUT (windspeed);
		847	MAP_OUT (winddir);
		848	MAP_OUT (sky);
		849
		850	MAP_OUT (per_player);
		851	MAP_OUT (per_party);
		852
		853	if (tile_path [0]) MAP_OUT2 (tile_path_1, tile_path [0]);
		854	if (tile_path [1]) MAP_OUT2 (tile_path_2, tile_path [1]);
		855	if (tile_path [2]) MAP_OUT2 (tile_path_3, tile_path [2]);
		856	if (tile_path [3]) MAP_OUT2 (tile_path_4, tile_path [3]);
		857
		858	freezer.put (this);
		859	freezer.put (KW_end);
		860
		861	return true;
		862	}
		863
		864	bool
		865	maptile::_save_header (const char *path)
		866	{
1345	object_freezer freezer;	867	object_freezer freezer;
1346		868
1347	/* legacy */	869	if (!_save_header (freezer))
1348	fprintf (freezer, "arch map\n");	870	return false;
1349	if (m->name)
1350	fprintf (freezer, "name %s\n", m->name);
1351	if (!flag)
1352	fprintf (freezer, "swap_time %d\n", m->swap_time);
1353	if (m->reset_timeout)
1354	fprintf (freezer, "reset_timeout %d\n", m->reset_timeout);
1355	if (m->fixed_resettime)
1356	fprintf (freezer, "fixed_resettime %d\n", m->fixed_resettime);
1357	/* we unfortunately have no idea if this is a value the creator set
1358	* or a difficulty value we generated when the map was first loaded
1359	*/
1360	if (m->difficulty)
1361	fprintf (freezer, "difficulty %d\n", m->difficulty);
1362	if (m->region)
1363	fprintf (freezer, "region %s\n", m->region->name);
1364	if (m->shopitems)
1365	{
1366	print_shop_string (m, shop);
1367	fprintf (freezer, "shopitems %s\n", shop);
1368	}
1369	if (m->shopgreed)
1370	fprintf (freezer, "shopgreed %f\n", m->shopgreed);
1371	if (m->shopmin)
1372	fprintf (freezer, "shopmin %llu\n", m->shopmin);
1373	if (m->shopmax)
1374	fprintf (freezer, "shopmax %llu\n", m->shopmax);
1375	if (m->shoprace)
1376	fprintf (freezer, "shoprace %s\n", m->shoprace);
1377	if (m->darkness)
1378	fprintf (freezer, "darkness %d\n", m->darkness);
1379	if (m->width)
1380	fprintf (freezer, "width %d\n", m->width);
1381	if (m->height)
1382	fprintf (freezer, "height %d\n", m->height);
1383	if (m->enter_x)
1384	fprintf (freezer, "enter_x %d\n", m->enter_x);
1385	if (m->enter_y)
1386	fprintf (freezer, "enter_y %d\n", m->enter_y);
1387	if (m->msg)
1388	fprintf (freezer, "msg\n%sendmsg\n", m->msg);
1389	if (m->maplore)
1390	fprintf (freezer, "maplore\n%sendmaplore\n", m->maplore);
1391	if (m->unique)
1392	fprintf (freezer, "unique %d\n", m->unique);
1393	if (m->templatemap)
1394	fprintf (freezer, "template %d\n", m->templatemap);
1395	if (m->outdoor)
1396	fprintf (freezer, "outdoor %d\n", m->outdoor);
1397	if (m->temp)
1398	fprintf (freezer, "temp %d\n", m->temp);
1399	if (m->pressure)
1400	fprintf (freezer, "pressure %d\n", m->pressure);
1401	if (m->humid)
1402	fprintf (freezer, "humid %d\n", m->humid);
1403	if (m->windspeed)
1404	fprintf (freezer, "windspeed %d\n", m->windspeed);
1405	if (m->winddir)
1406	fprintf (freezer, "winddir %d\n", m->winddir);
1407	if (m->sky)
1408	fprintf (freezer, "sky %d\n", m->sky);
1409	if (m->nosmooth)
1410	fprintf (freezer, "nosmooth %d\n", m->nosmooth);
1411		871
1412	/* Save any tiling information, except on overlays */	872	return freezer.save (path);
1413	if (flag != 2)
1414	for (i = 0; i < 4; i++)
1415	if (m->tile_path[i])
1416	fprintf (freezer, "tile_path_%d %s\n", i + 1, m->tile_path[i]);
1417
1418	freezer.put (m);
1419	fprintf (freezer, "end\n");
1420
1421	/* In the game save unique items in the different file, but
1422	* in the editor save them to the normal map file.
1423	* If unique map, save files in the proper destination (set by
1424	* player)
1425	*/
1426	if ((flag == 0 || flag == 2) && !m->unique && !m->templatemap)
1427	{
1428	object_freezer unique;
1429
1430	if (flag == 2)
1431	save_objects (m, freezer, unique, 2);
1432	else
1433	save_objects (m, freezer, unique, 0);
1434
1435	sprintf (buf, "%s.v00", create_items_path (m->path));
1436
1437	unique.save (buf);
1438	}
1439	else
1440	{ /* save same file when not playing, like in editor */
1441	save_objects (m, freezer, freezer, 0);
1442	}
1443
1444	freezer.save (filename);
1445
1446	return 0;
1447	}	873	}
1448		874
1449	/*	875	/*
1450	* Remove and free all objects in the given map.	876	* Remove and free all objects in the given map.
1451	*/	877	*/
1452	void	878	void
1453	free_all_objects (maptile *m)	879	maptile::clear ()
1454	{	880	{
		881	sfree (regions, size ()), regions = 0;
		882	free (regionmap), regionmap = 0;
		883
1455	if (!m->spaces)	884	if (spaces)
1456	return;
1457
1458	for (int i = 0; i < m->width; i++)
1459	for (int j = 0; j < m->height; j++)
1460	{	885	{
1461	mapspace &ms = m->at (i, j);	886	for (mapspace *ms = spaces + size (); ms-- > spaces; )
1462
1463	while (object *op = ms.bot)	887	while (object *op = ms->bot)
1464	{	888	{
1465	if (op->head)
1466	op = op->head;	889	op = op->head_ ();
1467
1468	op->destroy_inv (false);	890	op->destroy_inv (false);
1469	op->destroy ();	891	op->destroy ();
1470	}	892	}
		893
		894	sfree (spaces, size ()), spaces = 0;
1471	}	895	}
1472	}
1473		896
1474	/*	897	if (buttons)
1475	* Frees everything allocated by the given maptileure.	898	free_objectlinkpt (buttons), buttons = 0;
1476	* don't free tmpname - our caller is left to do that	899	}
1477	*/	900
1478	void	901	void
1479	free_map (maptile *m, int flag)	902	maptile::clear_header ()
1480	{	903	{
1481	if (!m->in_memory) //TODO: makes no sense to me?	904	name = 0;
1482	return;	905	msg = 0;
1483		906	maplore = 0;
1484	m->in_memory = MAP_SAVING;	907	shoprace = 0;
1485
1486	// TODO: use new/delete
1487
1488	if (flag && m->spaces)
1489	free_all_objects (m);
1490
1491	sfree (m->spaces, m->size ()), m->spaces = 0;
1492
1493	free (m->name), m->name = 0;
1494	free (m->msg), m->msg = 0;
1495	free (m->maplore), m->maplore = 0;
1496	free (m->shoprace), m->shoprace = 0;
1497	delete [] m->shopitems, m->shopitems = 0;	908	delete [] shopitems, shopitems = 0;
1498
1499	if (m->buttons)
1500	free_objectlinkpt (m->buttons), m->buttons = 0;
1501		909
1502	for (int i = 0; i < 4; i++)	910	for (int i = 0; i < 4; i++)
1503	free (m->tile_path[i]), m->tile_path[i] = 0;	911	tile_path [i] = 0;
1504
1505	m->in_memory = MAP_SWAPPED;
1506	}	912	}
1507		913
1508	maptile::~maptile ()	914	maptile::~maptile ()
1509	{	915	{
1510	assert (destroyed ());	916	assert (destroyed ());
1511	}	917	}
1512		918
1513	void	919	void
1514	maptile::do_destroy ()	920	maptile::clear_links_to (maptile *m)
1515	{	921	{
1516	attachable::do_destroy ();
1517
1518	unlink ();
1519
1520	free_map (this, 1);
1521	free (tmpname), tmpname = 0;
1522
1523	/* We need to look through all the maps and see if any maps	922	/* We need to look through all the maps and see if any maps
1524	* are pointing at this one for tiling information. Since	923	* are pointing at this one for tiling information. Since
1525	* tiling can be asymetric, we just can not look to see which	924	* tiling can be asymetric, we just can not look to see which
1526	* maps this map tiles with and clears those.	925	* maps this map tiles with and clears those.
1527	*/	926	*/
1528	//TODO: non-euclidean-tiling MUST GO
1529	for_all_maps (m)
1530	for (int i = 0; i < 4; i++)	927	for (int i = 0; i < 4; i++)
1531	if (m->tile_map[i] == this)	928	if (tile_map[i] == m)
1532	m->tile_map[i] = 0;	929	tile_map[i] = 0;
1533	}	930	}
1534		931
1535	//TODO: must go
1536	void	932	void
1537	delete_map (maptile *m)	933	maptile::do_destroy ()
1538	{	934	{
1539	if (m)	935	attachable::do_destroy ();
		936
		937	clear ();
		938	}
		939
		940	/* decay and destroy perishable items in a map */
		941	void
		942	maptile::do_decay_objects ()
		943	{
		944	if (!spaces)
		945	return;
		946
		947	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		948	for (object *above, *op = ms->bot; op; op = above)
		949	{
		950	above = op->above;
		951
		952	bool destroy = 0;
		953
		954	// do not decay anything above unique floor tiles (yet :)
		955	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))
		956	break;
		957
		958	if (QUERY_FLAG (op, FLAG_IS_FLOOR)
		959	|| QUERY_FLAG (op, FLAG_OBJ_ORIGINAL)
		960	|| QUERY_FLAG (op, FLAG_OBJ_SAVE_ON_OVL)
		961	|| QUERY_FLAG (op, FLAG_UNIQUE)
		962	|| QUERY_FLAG (op, FLAG_OVERLAY_FLOOR)
		963	|| QUERY_FLAG (op, FLAG_UNPAID)
		964	|| op->is_alive ())
		965	; // do not decay
		966	else if (op->is_weapon ())
		967	{
		968	op->stats.dam--;
		969	if (op->stats.dam < 0)
		970	destroy = 1;
		971	}
		972	else if (op->is_armor ())
		973	{
		974	op->stats.ac--;
		975	if (op->stats.ac < 0)
		976	destroy = 1;
		977	}
		978	else if (op->type == FOOD)
		979	{
		980	op->stats.food -= rndm (5, 20);
		981	if (op->stats.food < 0)
		982	destroy = 1;
		983	}
		984	else
		985	{
		986	int mat = op->materials;
		987
		988	if (mat & M_PAPER
		989	|| mat & M_LEATHER
		990	|| mat & M_WOOD
		991	|| mat & M_ORGANIC
		992	|| mat & M_CLOTH
		993	|| mat & M_LIQUID
		994	|| (mat & M_IRON && rndm (1, 5) == 1)
		995	|| (mat & M_GLASS && rndm (1, 2) == 1)
		996	|| ((mat & M_STONE || mat & M_ADAMANT) && rndm (1, 10) == 1)
		997	|| ((mat & M_SOFT_METAL || mat & M_BONE) && rndm (1, 3) == 1)
		998	|| (mat & M_ICE && temp > 32))
		999	destroy = 1;
		1000	}
		1001
		1002	/* adjust overall chance below */
		1003	if (destroy && rndm (0, 1))
1540	m->destroy ();	1004	op->destroy ();
		1005	}
1541	}	1006	}
1542		1007
1543	/*	1008	/*
1544	* Makes sure the given map is loaded and swapped in.	1009	* Updates every button on the map (by calling update_button() for them).
1545	* name is path name of the map.
1546	* flags meaning:
1547	* 0x1 (MAP_FLUSH): flush the map - always load from the map directory,
1548	* and don't do unique items or the like.
1549	* 0x2 (MAP_PLAYER_UNIQUE) - this is a unique map for each player.
1550	* dont do any more name translation on it.
1551	*	1010	*/
1552	* Returns a pointer to the given map.	1011	void
1553	*/	1012	maptile::update_buttons ()
1554	maptile *
1555	ready_map_name (const char *name, int flags)
1556	{	1013	{
1557	if (!name)	1014	for (oblinkpt *obp = buttons; obp; obp = obp->next)
1558	return 0;	1015	for (objectlink *ol = obp->link; ol; ol = ol->next)
1559
1560	/* Have we been at this level before? */
1561	maptile *m = has_been_loaded (name);
1562
1563	/* Map is good to go, so just return it */
1564	if (m && (m->in_memory == MAP_LOADING || m->in_memory == MAP_IN_MEMORY))
1565	return m;
1566
1567	/* unique maps always get loaded from their original location, and never
1568	* a temp location. Likewise, if map_flush is set, or we have never loaded
1569	* this map, load it now. I removed the reset checking from here -
1570	* it seems the probability of a player trying to enter a map that should
1571	* reset but hasn't yet is quite low, and removing that makes this function
1572	* a bit cleaner (and players probably shouldn't rely on exact timing for
1573	* resets in any case - if they really care, they should use the 'maps command.
1574	*/
1575	if ((flags & (MAP_FLUSH | MAP_PLAYER_UNIQUE)) || !m)
1576	{	1016	{
1577	/* first visit or time to reset */	1017	if (!ol->ob)
1578	if (m)
1579	{	1018	{
1580	clean_tmp_map (m); /* Doesn't make much difference */	1019	LOG (llevError, "Internal error in update_button (%s (%dx%d), connected %ld).\n",
1581	delete_map (m);	1020	ol->ob ? (const char *) ol->ob->name : "null", ol->ob ? ol->ob->x : -1, ol->ob ? ol->ob->y : -1, obp->value);
		1021	continue;
1582	}	1022	}
1583		1023
1584	/* create and load a map */	1024	if (ol->ob->type == BUTTON || ol->ob->type == PEDESTAL)
1585	if (flags & MAP_PLAYER_UNIQUE)
1586	LOG (llevDebug, "Trying to load map %s.\n", name);
1587	else
1588	LOG (llevDebug, "Trying to load map %s.\n", create_pathname (name));
1589
1590	if (!(m = load_original_map (name, (flags & MAP_PLAYER_UNIQUE))))
1591	return (NULL);
1592
1593	fix_auto_apply (m); /* Chests which open as default */
1594
1595	/* If a player unique map, no extra unique object file to load.
1596	* if from the editor, likewise.
1597	*/
1598	if (!(flags & (MAP_FLUSH | MAP_PLAYER_UNIQUE)))
1599	load_unique_objects (m);
1600
1601	if (!(flags & (MAP_FLUSH | MAP_PLAYER_UNIQUE | MAP_OVERLAY)))
1602	{	1025	{
1603	m = load_overlay_map (name, m);	1026	update_button (ol->ob);
1604	if (m == NULL)	1027	break;
1605	return NULL;
1606	}	1028	}
1607
1608	if (flags & MAP_PLAYER_UNIQUE)
1609	INVOKE_MAP (SWAPIN, m);
1610
1611	}	1029	}
1612	else
1613	{
1614	/* If in this loop, we found a temporary map, so load it up. */
1615
1616	m = load_temporary_map (m);
1617	if (m == NULL)
1618	return NULL;
1619	load_unique_objects (m);
1620
1621	clean_tmp_map (m);
1622	m->in_memory = MAP_IN_MEMORY;
1623	/* tempnam() on sun systems (probably others) uses malloc
1624	* to allocated space for the string. Free it here.
1625	* In some cases, load_temporary_map above won't find the
1626	* temporary map, and so has reloaded a new map. If that
1627	* is the case, tmpname is now null
1628	*/
1629	if (m->tmpname)
1630	free (m->tmpname);
1631	m->tmpname = NULL;
1632	/* It's going to be saved anew anyway */
1633	}
1634
1635	/* Below here is stuff common to both first time loaded maps and
1636	* temp maps.
1637	*/
1638
1639	decay_objects (m); /* start the decay */
1640	/* In case other objects press some buttons down */
1641	update_buttons (m);
1642	if (m->outdoor)
1643	set_darkness_map (m);
1644	/* run the weather over this map */
1645	weather_effect (name);
1646	return m;
1647	}	1030	}
1648
1649		1031
1650	/*	1032	/*
1651	* This routine is supposed to find out the difficulty of the map.	1033	* This routine is supposed to find out the difficulty of the map.
1652	* difficulty does not have a lot to do with character level,	1034	* difficulty does not have a lot to do with character level,
1653	* but does have a lot to do with treasure on the map.	1035	* but does have a lot to do with treasure on the map.
…		…
1655	* Difficulty can now be set by the map creature. If the value stored	1037	* Difficulty can now be set by the map creature. If the value stored
1656	* in the map is zero, then use this routine. Maps should really	1038	* in the map is zero, then use this routine. Maps should really
1657	* have a difficulty set than using this function - human calculation	1039	* have a difficulty set than using this function - human calculation
1658	* is much better than this functions guesswork.	1040	* is much better than this functions guesswork.
1659	*/	1041	*/
1660
1661	int	1042	int
1662	calculate_difficulty (maptile *m)	1043	maptile::estimate_difficulty () const
1663	{	1044	{
1664	object *op;
1665	archetype *at;
1666	int x, y, i;
1667	long monster_cnt = 0;	1045	long monster_cnt = 0;
1668	double avgexp = 0;	1046	double avgexp = 0;
1669	sint64 total_exp = 0;	1047	sint64 total_exp = 0;
1670		1048
1671	if (m->difficulty)	1049	for (mapspace *ms = spaces + size (); ms-- > spaces; )
1672	{	1050	for (object *op = ms->bot; op; op = op->above)
1673	LOG (llevDebug, "Using stored map difficulty: %d\n", m->difficulty);
1674	return m->difficulty;
1675	}
1676
1677	for (x = 0; x < m->width; x++)
1678	for (y = 0; y < m->height; y++)
1679	for (op = GET_MAP_OB (m, x, y); op != NULL; op = op->above)
1680	{	1051	{
1681	if (QUERY_FLAG (op, FLAG_MONSTER))	1052	if (QUERY_FLAG (op, FLAG_MONSTER))
1682	{	1053	{
1683	total_exp += op->stats.exp;	1054	total_exp += op->stats.exp;
1684	monster_cnt++;	1055	monster_cnt++;
1685	}	1056	}
1686		1057
1687	if (QUERY_FLAG (op, FLAG_GENERATOR))	1058	if (QUERY_FLAG (op, FLAG_GENERATOR))
1688	{	1059	{
1689	total_exp += op->stats.exp;	1060	total_exp += op->stats.exp;
		1061
1690	at = type_to_archetype (GENERATE_TYPE (op));	1062	if (archetype *at = type_to_archetype (GENERATE_TYPE (op)))
1691
1692	if (at != NULL)
1693	total_exp += at->clone.stats.exp * 8;	1063	total_exp += at->stats.exp * 8;
1694		1064
1695	monster_cnt++;	1065	monster_cnt++;
1696	}	1066	}
1697	}	1067	}
1698		1068
1699	avgexp = (double) total_exp / monster_cnt;	1069	avgexp = (double) total_exp / monster_cnt;
1700		1070
1701	for (i = 1; i <= settings.max_level; i++)	1071	for (int i = 1; i <= settings.max_level; i++)
1702	{
1703	if ((level_exp (i, 1) - level_exp (i - 1, 1)) > (100 * avgexp))	1072	if ((level_exp (i, 1) - level_exp (i - 1, 1)) > (100 * avgexp))
1704	{
1705	/* LOG(llevDebug, "Calculated difficulty for map: %s: %d\n", m->name, i); */
1706	return i;	1073	return i;
1707	}
1708	}
1709		1074
1710	return 1;	1075	return 1;
1711	}
1712
1713	void
1714	clean_tmp_map (maptile *m)
1715	{
1716	if (m->tmpname == NULL)
1717	return;
1718	INVOKE_MAP (CLEAN, m);
1719	(void) unlink (m->tmpname);
1720	}
1721
1722	void
1723	free_all_maps (void)
1724	{
1725	int real_maps = 0;
1726
1727	while (first_map)
1728	{
1729	/* I think some of the callers above before it gets here set this to be
1730	* saving, but we still want to free this data
1731	*/
1732	if (first_map->in_memory == MAP_SAVING)
1733	first_map->in_memory = MAP_IN_MEMORY;
1734	delete_map (first_map);
1735	real_maps++;
1736	}
1737
1738	LOG (llevDebug, "free_all_maps: Freed %d maps\n", real_maps);
1739	}	1076	}
1740		1077
1741	/* change_map_light() - used to change map light level (darkness)	1078	/* change_map_light() - used to change map light level (darkness)
1742	* up or down. Returns true if successful. It should now be	1079	* up or down. Returns true if successful. It should now be
1743	* possible to change a value by more than 1.	1080	* possible to change a value by more than 1.
1744	* Move this from los.c to map.c since this is more related	1081	* Move this from los.c to map.c since this is more related
1745	* to maps than los.	1082	* to maps than los.
1746	* postive values make it darker, negative make it brighter	1083	* postive values make it darker, negative make it brighter
1747	*/	1084	*/
1748
1749	int	1085	int
1750	change_map_light (maptile *m, int change)	1086	maptile::change_map_light (int change)
1751	{	1087	{
1752	int new_level = m->darkness + change;	1088	int new_level = darkness + change;
1753		1089
1754	/* Nothing to do */	1090	/* Nothing to do */
1755	if (!change || (new_level <= 0 && m->darkness == 0) || (new_level >= MAX_DARKNESS && m->darkness >= MAX_DARKNESS))	1091	if (!change || (new_level <= 0 && darkness == 0) || (new_level >= MAX_DARKNESS && darkness >= MAX_DARKNESS))
1756	{
1757	return 0;	1092	return 0;
1758	}
1759		1093
1760	/* inform all players on the map */	1094	/* inform all players on the map */
1761	if (change > 0)	1095	if (change > 0)
1762	new_info_map (NDI_BLACK | NDI_UNIQUE, m, "It becomes darker.");	1096	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes darker.");
1763	else	1097	else
1764	new_info_map (NDI_BLACK | NDI_UNIQUE, m, "It becomes brighter.");	1098	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes brighter.");
1765		1099
1766	/* Do extra checking. since m->darkness is a unsigned value,	1100	/* Do extra checking. since darkness is a unsigned value,
1767	* we need to be extra careful about negative values.	1101	* we need to be extra careful about negative values.
1768	* In general, the checks below are only needed if change	1102	* In general, the checks below are only needed if change
1769	* is not +/-1	1103	* is not +/-1
1770	*/	1104	*/
1771	if (new_level < 0)	1105	if (new_level < 0)
1772	m->darkness = 0;	1106	darkness = 0;
1773	else if (new_level >= MAX_DARKNESS)	1107	else if (new_level >= MAX_DARKNESS)
1774	m->darkness = MAX_DARKNESS;	1108	darkness = MAX_DARKNESS;
1775	else	1109	else
1776	m->darkness = new_level;	1110	darkness = new_level;
1777		1111
1778	/* All clients need to get re-updated for the change */	1112	/* All clients need to get re-updated for the change */
1779	update_all_map_los (m);	1113	update_all_map_los (this);
1780	return 1;	1114	return 1;
1781	}	1115	}
1782		1116
1783	/*	1117	/*
1784	* This function updates various attributes about a specific space	1118	* This function updates various attributes about a specific space
…		…
1788	*/	1122	*/
1789	void	1123	void
1790	mapspace::update_ ()	1124	mapspace::update_ ()
1791	{	1125	{
1792	object *tmp, *last = 0;	1126	object *tmp, *last = 0;
1793	uint8 flags = 0, light = 0, anywhere = 0;	1127	uint8 flags = P_UPTODATE, light = 0, anywhere = 0;
1794	New_Face *top, *floor, *middle;
1795	object *top_obj, *floor_obj, *middle_obj;
1796	MoveType move_block = 0, move_slow = 0, move_on = 0, move_off = 0, move_allow = 0;	1128	MoveType move_block = 0, move_slow = 0, move_on = 0, move_off = 0, move_allow = 0;
1797		1129
1798	middle = blank_face;	1130	//object *middle = 0;
1799	top = blank_face;	1131	//object *top = 0;
1800	floor = blank_face;	1132	//object *floor = 0;
1801		1133	// this seems to generate better code than using locals, above
1802	middle_obj = 0;	1134	object *&top = faces_obj[0] = 0;
1803	top_obj = 0;	1135	object *&middle = faces_obj[1] = 0;
1804	floor_obj = 0;	1136	object *&floor = faces_obj[2] = 0;
1805		1137
1806	for (tmp = bot; tmp; last = tmp, tmp = tmp->above)	1138	for (tmp = bot; tmp; last = tmp, tmp = tmp->above)
1807	{	1139	{
1808	/* This could be made additive I guess (two lights better than	1140	/* This could be made additive I guess (two lights better than
1809	* one). But if so, it shouldn't be a simple additive - 2	1141	* one). But if so, it shouldn't be a simple additive - 2
…		…
1822	* Always put the player down for drawing.	1154	* Always put the player down for drawing.
1823	*/	1155	*/
1824	if (!tmp->invisible)	1156	if (!tmp->invisible)
1825	{	1157	{
1826	if ((tmp->type == PLAYER || QUERY_FLAG (tmp, FLAG_MONSTER)))	1158	if ((tmp->type == PLAYER || QUERY_FLAG (tmp, FLAG_MONSTER)))
1827	{
1828	top = tmp->face;
1829	top_obj = tmp;	1159	top = tmp;
1830	}
1831	else if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))	1160	else if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))
1832	{	1161	{
1833	/* If we got a floor, that means middle and top were below it,	1162	/* If we got a floor, that means middle and top were below it,
1834	* so should not be visible, so we clear them.	1163	* so should not be visible, so we clear them.
1835	*/	1164	*/
1836	middle = blank_face;	1165	middle = 0;
1837	top = blank_face;	1166	top = 0;
1838	floor = tmp->face;
1839	floor_obj = tmp;	1167	floor = tmp;
1840	}	1168	}
1841	/* Flag anywhere have high priority */	1169	/* Flag anywhere have high priority */
1842	else if (QUERY_FLAG (tmp, FLAG_SEE_ANYWHERE))	1170	else if (QUERY_FLAG (tmp, FLAG_SEE_ANYWHERE))
1843	{	1171	{
1844	middle = tmp->face;
1845
1846	middle_obj = tmp;	1172	middle = tmp;
1847	anywhere = 1;	1173	anywhere = 1;
1848	}	1174	}
1849	/* Find the highest visible face around. If equal	1175	/* Find the highest visible face around. If equal
1850	* visibilities, we still want the one nearer to the	1176	* visibilities, we still want the one nearer to the
1851	* top	1177	* top
1852	*/	1178	*/
1853	else if (middle == blank_face || (tmp->face->visibility > middle->visibility && !anywhere))	1179	else if (!middle || (::faces [tmp->face].visibility > ::faces [middle->face].visibility && !anywhere))
1854	{
1855	middle = tmp->face;
1856	middle_obj = tmp;	1180	middle = tmp;
1857	}
1858	}	1181	}
1859		1182
1860	if (tmp == tmp->above)	1183	if (tmp == tmp->above)
1861	{	1184	{
1862	LOG (llevError, "Error in structure of map\n");	1185	LOG (llevError, "Error in structure of map\n");
…		…
1897	* middle face. This should not happen, as we already have the	1220	* middle face. This should not happen, as we already have the
1898	* else statement above so middle should not get set. OTOH, it	1221	* else statement above so middle should not get set. OTOH, it
1899	* may be possible for the faces to match but be different objects.	1222	* may be possible for the faces to match but be different objects.
1900	*/	1223	*/
1901	if (top == middle)	1224	if (top == middle)
1902	middle = blank_face;	1225	middle = 0;
1903		1226
1904	/* There are three posibilities at this point:	1227	/* There are three posibilities at this point:
1905	* 1) top face is set, need middle to be set.	1228	* 1) top face is set, need middle to be set.
1906	* 2) middle is set, need to set top.	1229	* 2) middle is set, need to set top.
1907	* 3) neither middle or top is set - need to set both.	1230	* 3) neither middle or top is set - need to set both.
…		…
1912	/* Once we get to a floor, stop, since we already have a floor object */	1235	/* Once we get to a floor, stop, since we already have a floor object */
1913	if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))	1236	if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))
1914	break;	1237	break;
1915		1238
1916	/* If two top faces are already set, quit processing */	1239	/* If two top faces are already set, quit processing */
1917	if ((top != blank_face) && (middle != blank_face))	1240	if (top && middle)
1918	break;	1241	break;
1919		1242
1920	/* Only show visible faces, unless its the editor - show all */	1243	/* Only show visible faces */
1921	if (!tmp->invisible || editor)	1244	if (!tmp->invisible)
1922	{	1245	{
1923	/* Fill in top if needed */	1246	/* Fill in top if needed */
1924	if (top == blank_face)	1247	if (!top)
1925	{	1248	{
1926	top = tmp->face;
1927	top_obj = tmp;	1249	top = tmp;
1928	if (top == middle)	1250	if (top == middle)
1929	middle = blank_face;	1251	middle = 0;
1930	}	1252	}
1931	else	1253	else
1932	{	1254	{
1933	/* top is already set - we should only get here if	1255	/* top is already set - we should only get here if
1934	* middle is not set	1256	* middle is not set
1935	*	1257	*
1936	* Set the middle face and break out, since there is nothing	1258	* Set the middle face and break out, since there is nothing
1937	* more to fill in. We don't check visiblity here, since	1259	* more to fill in. We don't check visiblity here, since
1938	*	1260	*
1939	*/	1261	*/
1940	if (tmp->face != top)	1262	if (tmp != top)
1941	{	1263	{
1942	middle = tmp->face;
1943	middle_obj = tmp;	1264	middle = tmp;
1944	break;	1265	break;
1945	}	1266	}
1946	}	1267	}
1947	}	1268	}
1948	}	1269	}
1949		1270
1950	if (middle == floor)	1271	if (middle == floor)
1951	middle = blank_face;	1272	middle = 0;
1952		1273
1953	if (top == middle)	1274	if (top == middle)
1954	middle = blank_face;	1275	middle = 0;
1955		1276
1956	faces [0] = top; faces_obj [0] = top != blank_face ? top_obj : 0;	1277	#if 0
1957	faces [1] = middle; faces_obj [1] = middle != blank_face ? middle_obj : 0;	1278	faces_obj [0] = top;
1958	faces [2] = floor; faces_obj [2] = floor != blank_face ? floor_obj : 0;	1279	faces_obj [1] = middle;
		1280	faces_obj [2] = floor;
		1281	#endif
1959	}	1282	}
1960		1283
1961	void	1284	uint64
1962	set_map_reset_time (maptile *map)	1285	mapspace::volume () const
1963	{	1286	{
1964	int timeout;	1287	uint64 vol = 0;
1965		1288
1966	timeout = map->reset_timeout;	1289	for (object *op = top; op && !op->flag [FLAG_NO_PICK]; op = op->below)
1967	if (timeout <= 0)	1290	vol += op->volume ();
1968	timeout = MAP_DEFAULTRESET;
1969	if (timeout >= MAP_MAXRESET)
1970	timeout = MAP_MAXRESET;
1971	map->reset_time = time (0) + timeout;
1972	}
1973		1291
		1292	return vol;
		1293	}
		1294
1974	/* this updates the orig_map->tile_map[tile_num] value after loading	1295	/* this updates the orig_map->tile_map[tile_num] value after finding
1975	* the map. It also takes care of linking back the freshly loaded	1296	* the map. It also takes care of linking back the freshly found
1976	* maps tile_map values if it tiles back to this one. It returns	1297	* maps tile_map values if it tiles back to this one. It returns
1977	* the value of orig_map->tile_map[tile_num]. It really only does this	1298	* the value of orig_map->tile_map[tile_num].
1978	* so that it is easier for calling functions to verify success.
1979	*/	1299	*/
1980
1981	static maptile *	1300	static inline maptile *
1982	load_and_link_tiled_map (maptile *orig_map, int tile_num)	1301	find_and_link (maptile *orig_map, int tile_num)
1983	{	1302	{
		1303	maptile *mp = orig_map->tile_map [tile_num];
		1304
		1305	if (!mp)
		1306	{
		1307	mp = orig_map->find_sync (orig_map->tile_path [tile_num], orig_map);
		1308
		1309	if (!mp)
		1310	{
		1311	// emergency mode, manufacture a dummy map, this creates a memleak, but thats fine
		1312	LOG (llevError, "FATAL: cannot load tiled map %s from %s, leaking memory and worse!\n",
		1313	&orig_map->tile_path[tile_num], &orig_map->path);
		1314	mp = new maptile (1, 1);
		1315	mp->alloc ();
		1316	mp->in_memory = MAP_IN_MEMORY;
		1317	}
		1318	}
		1319
1984	int dest_tile = (tile_num + 2) % 4;	1320	int dest_tile = (tile_num + 2) % 4;
1985	char *path = path_combine_and_normalize (orig_map->path, orig_map->tile_path[tile_num]);
1986		1321
1987	orig_map->tile_map[tile_num] = ready_map_name (path, 0);	1322	orig_map->tile_map [tile_num] = mp;
1988		1323
1989	/* need to do a strcmp here as the orig_map->path is not a shared string */	1324	// optimisation: back-link map to origin map if euclidean
1990	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))	1325	//TODO: non-euclidean maps MUST GO
		1326	if (orig_map->tile_map[tile_num]->tile_path[dest_tile] == orig_map->path)
1991	orig_map->tile_map[tile_num]->tile_map[dest_tile] = orig_map;	1327	orig_map->tile_map[tile_num]->tile_map[dest_tile] = orig_map;
1992		1328
1993	return orig_map->tile_map[tile_num];	1329	return mp;
		1330	}
		1331
		1332	static inline void
		1333	load_and_link (maptile *orig_map, int tile_num)
		1334	{
		1335	find_and_link (orig_map, tile_num)->load_sync ();
1994	}	1336	}
1995		1337
1996	/* this returns TRUE if the coordinates (x,y) are out of	1338	/* this returns TRUE if the coordinates (x,y) are out of
1997	* map m. This function also takes into account any	1339	* map m. This function also takes into account any
1998	* tiling considerations, loading adjacant maps as needed.	1340	* tiling considerations, loading adjacant maps as needed.
1999	* This is the function should always be used when it	1341	* This is the function should always be used when it
2000	* necessary to check for valid coordinates.	1342	* necessary to check for valid coordinates.
2001	* This function will recursively call itself for the	1343	* This function will recursively call itself for the
2002	* tiled maps.	1344	* tiled maps.
2003	*
2004	*
2005	*/	1345	*/
2006	int	1346	int
2007	out_of_map (maptile *m, int x, int y)	1347	out_of_map (maptile *m, int x, int y)
2008	{	1348	{
2009	/* If we get passed a null map, this is obviously the	1349	/* If we get passed a null map, this is obviously the
…		…
2017	{	1357	{
2018	if (!m->tile_path[3])	1358	if (!m->tile_path[3])
2019	return 1;	1359	return 1;
2020		1360
2021	if (!m->tile_map[3] || m->tile_map[3]->in_memory != MAP_IN_MEMORY)	1361	if (!m->tile_map[3] || m->tile_map[3]->in_memory != MAP_IN_MEMORY)
2022	load_and_link_tiled_map (m, 3);	1362	find_and_link (m, 3);
2023		1363
2024	return (out_of_map (m->tile_map[3], x + m->tile_map[3]->width, y));	1364	return out_of_map (m->tile_map[3], x + m->tile_map[3]->width, y);
2025	}	1365	}
2026		1366
2027	if (x >= m->width)	1367	if (x >= m->width)
2028	{	1368	{
2029	if (!m->tile_path[1])	1369	if (!m->tile_path[1])
2030	return 1;	1370	return 1;
2031		1371
2032	if (!m->tile_map[1] || m->tile_map[1]->in_memory != MAP_IN_MEMORY)	1372	if (!m->tile_map[1] || m->tile_map[1]->in_memory != MAP_IN_MEMORY)
2033	load_and_link_tiled_map (m, 1);	1373	find_and_link (m, 1);
2034		1374
2035	return (out_of_map (m->tile_map[1], x - m->width, y));	1375	return out_of_map (m->tile_map[1], x - m->width, y);
2036	}	1376	}
2037		1377
2038	if (y < 0)	1378	if (y < 0)
2039	{	1379	{
2040	if (!m->tile_path[0])	1380	if (!m->tile_path[0])
2041	return 1;	1381	return 1;
2042		1382
2043	if (!m->tile_map[0] || m->tile_map[0]->in_memory != MAP_IN_MEMORY)	1383	if (!m->tile_map[0] || m->tile_map[0]->in_memory != MAP_IN_MEMORY)
2044	load_and_link_tiled_map (m, 0);	1384	find_and_link (m, 0);
2045		1385
2046	return (out_of_map (m->tile_map[0], x, y + m->tile_map[0]->height));	1386	return out_of_map (m->tile_map[0], x, y + m->tile_map[0]->height);
2047	}	1387	}
2048		1388
2049	if (y >= m->height)	1389	if (y >= m->height)
2050	{	1390	{
2051	if (!m->tile_path[2])	1391	if (!m->tile_path[2])
2052	return 1;	1392	return 1;
2053		1393
2054	if (!m->tile_map[2] || m->tile_map[2]->in_memory != MAP_IN_MEMORY)	1394	if (!m->tile_map[2] || m->tile_map[2]->in_memory != MAP_IN_MEMORY)
2055	load_and_link_tiled_map (m, 2);	1395	find_and_link (m, 2);
2056		1396
2057	return (out_of_map (m->tile_map[2], x, y - m->height));	1397	return out_of_map (m->tile_map[2], x, y - m->height);
2058	}	1398	}
2059		1399
2060	/* Simple case - coordinates are within this local	1400	/* Simple case - coordinates are within this local
2061	* map.	1401	* map.
2062	*/	1402	*/
…		…
2065		1405
2066	/* This is basically the same as out_of_map above, but	1406	/* This is basically the same as out_of_map above, but
2067	* instead we return NULL if no map is valid (coordinates	1407	* instead we return NULL if no map is valid (coordinates
2068	* out of bounds and no tiled map), otherwise it returns	1408	* out of bounds and no tiled map), otherwise it returns
2069	* the map as that the coordinates are really on, and	1409	* the map as that the coordinates are really on, and
2070	* updates x and y to be the localized coordinates.	1410	* updates x and y to be the localised coordinates.
2071	* Using this is more efficient of calling out_of_map	1411	* Using this is more efficient of calling out_of_map
2072	* and then figuring out what the real map is	1412	* and then figuring out what the real map is
2073	*/	1413	*/
2074	maptile *	1414	maptile *
2075	get_map_from_coord (maptile *m, sint16 * x, sint16 * y)	1415	maptile::xy_find (sint16 &x, sint16 &y)
2076	{	1416	{
2077
2078	if (*x < 0)	1417	if (x < 0)
2079	{	1418	{
2080	if (!m->tile_path[3])	1419	if (!tile_path[3])
2081	return 0;	1420	return 0;
2082	if (!m->tile_map[3] || m->tile_map[3]->in_memory != MAP_IN_MEMORY)
2083	load_and_link_tiled_map (m, 3);
2084		1421
		1422	find_and_link (this, 3);
2085	*x += m->tile_map[3]->width;	1423	x += tile_map[3]->width;
2086	return (get_map_from_coord (m->tile_map[3], x, y));	1424	return tile_map[3]->xy_find (x, y);
2087	}	1425	}
2088		1426
2089	if (*x >= m->width)	1427	if (x >= width)
2090	{	1428	{
2091	if (!m->tile_path[1])	1429	if (!tile_path[1])
2092	return 0;	1430	return 0;
2093		1431
2094	if (!m->tile_map[1] || m->tile_map[1]->in_memory != MAP_IN_MEMORY)	1432	find_and_link (this, 1);
2095	load_and_link_tiled_map (m, 1);
2096
2097	*x -= m->width;	1433	x -= width;
2098	return (get_map_from_coord (m->tile_map[1], x, y));	1434	return tile_map[1]->xy_find (x, y);
2099	}	1435	}
2100		1436
2101	if (*y < 0)	1437	if (y < 0)
2102	{	1438	{
2103	if (!m->tile_path[0])	1439	if (!tile_path[0])
2104	return 0;	1440	return 0;
2105		1441
2106	if (!m->tile_map[0] || m->tile_map[0]->in_memory != MAP_IN_MEMORY)	1442	find_and_link (this, 0);
2107	load_and_link_tiled_map (m, 0);
2108
2109	*y += m->tile_map[0]->height;	1443	y += tile_map[0]->height;
2110	return (get_map_from_coord (m->tile_map[0], x, y));	1444	return tile_map[0]->xy_find (x, y);
2111	}	1445	}
2112		1446
2113	if (*y >= m->height)	1447	if (y >= height)
2114	{	1448	{
2115	if (!m->tile_path[2])	1449	if (!tile_path[2])
2116	return 0;	1450	return 0;
2117		1451
2118	if (!m->tile_map[2] || m->tile_map[2]->in_memory != MAP_IN_MEMORY)	1452	find_and_link (this, 2);
2119	load_and_link_tiled_map (m, 2);
2120
2121	*y -= m->height;	1453	y -= height;
2122	return (get_map_from_coord (m->tile_map[2], x, y));	1454	return tile_map[2]->xy_find (x, y);
2123	}	1455	}
2124		1456
2125	/* Simple case - coordinates are within this local	1457	/* Simple case - coordinates are within this local
2126	* map.	1458	* map.
2127	*/	1459	*/
2128
2129	return m;	1460	return this;
2130	}	1461	}
2131		1462
2132	/**	1463	/**
2133	* Return whether map2 is adjacent to map1. If so, store the distance from	1464	* Return whether map2 is adjacent to map1. If so, store the distance from
2134	* map1 to map2 in dx/dy.	1465	* map1 to map2 in dx/dy.
2135	*/	1466	*/
2136	static int	1467	int
2137	adjacent_map (const maptile *map1, const maptile *map2, int *dx, int *dy)	1468	adjacent_map (const maptile *map1, const maptile *map2, int *dx, int *dy)
2138	{	1469	{
2139	if (!map1 || !map2)	1470	if (!map1 || !map2)
2140	return 0;	1471	return 0;
2141		1472
		1473	//TODO: this doesn't actually check corretcly when intermediate maps are not loaded
		1474	//fix: compare paths instead (this is likely faster, too!)
2142	if (map1 == map2)	1475	if (map1 == map2)
2143	{	1476	{
2144	*dx = 0;	1477	*dx = 0;
2145	*dy = 0;	1478	*dy = 0;
2146
2147	}	1479	}
2148	else if (map1->tile_map[0] == map2)	1480	else if (map1->tile_map[0] == map2)
2149	{ /* up */	1481	{ /* up */
2150	*dx = 0;	1482	*dx = 0;
2151	*dy = -map2->height;	1483	*dy = -map2->height;
…		…
2162	}	1494	}
2163	else if (map1->tile_map[3] == map2)	1495	else if (map1->tile_map[3] == map2)
2164	{ /* left */	1496	{ /* left */
2165	*dx = -map2->width;	1497	*dx = -map2->width;
2166	*dy = 0;	1498	*dy = 0;
2167
2168	}	1499	}
2169	else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[1] == map2)	1500	else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[1] == map2)
2170	{ /* up right */	1501	{ /* up right */
2171	*dx = map1->tile_map[0]->width;	1502	*dx = map1->tile_map[0]->width;
2172	*dy = -map1->tile_map[0]->height;	1503	*dy = -map1->tile_map[0]->height;
…		…
2203	}	1534	}
2204	else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[2] == map2)	1535	else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[2] == map2)
2205	{ /* left down */	1536	{ /* left down */
2206	*dx = -map1->tile_map[3]->width;	1537	*dx = -map1->tile_map[3]->width;
2207	*dy = map1->tile_map[3]->height;	1538	*dy = map1->tile_map[3]->height;
2208
2209	}	1539	}
2210	else	1540	else
2211	{ /* not "adjacent" enough */
2212	return 0;	1541	return 0;
2213	}
2214		1542
2215	return 1;	1543	return 1;
		1544	}
		1545
		1546	maptile *
		1547	maptile::xy_load (sint16 &x, sint16 &y)
		1548	{
		1549	maptile *map = xy_find (x, y);
		1550
		1551	if (map)
		1552	map->load_sync ();
		1553
		1554	return map;
		1555	}
		1556
		1557	maptile *
		1558	get_map_from_coord (maptile *m, sint16 *x, sint16 *y)
		1559	{
		1560	return m->xy_load (*x, *y);
2216	}	1561	}
2217		1562
2218	/* From map.c	1563	/* From map.c
2219	* This is used by get_player to determine where the other	1564	* This is used by get_player to determine where the other
2220	* creature is. get_rangevector takes into account map tiling,	1565	* creature is. get_rangevector takes into account map tiling,
2221	* so you just can not look the the map coordinates and get the	1566	* so you just can not look the the map coordinates and get the
2222	* righte value. distance_x/y are distance away, which	1567	* righte value. distance_x/y are distance away, which
2223	* can be negativbe. direction is the crossfire direction scheme	1568	* can be negative. direction is the crossfire direction scheme
2224	* that the creature should head. part is the part of the	1569	* that the creature should head. part is the part of the
2225	* monster that is closest.	1570	* monster that is closest.
2226	*	1571	*
2227	* get_rangevector looks at op1 and op2, and fills in the	1572	* get_rangevector looks at op1 and op2, and fills in the
2228	* structure for op1 to get to op2.	1573	* structure for op1 to get to op2.
…		…
2233	* be unexpected	1578	* be unexpected
2234	*	1579	*
2235	* currently, the only flag supported (0x1) is don't translate for	1580	* currently, the only flag supported (0x1) is don't translate for
2236	* closest body part of 'op1'	1581	* closest body part of 'op1'
2237	*/	1582	*/
2238
2239	void	1583	void
2240	get_rangevector (object *op1, object *op2, rv_vector * retval, int flags)	1584	get_rangevector (object *op1, object *op2, rv_vector * retval, int flags)
2241	{	1585	{
2242	if (!adjacent_map (op1->map, op2->map, &retval->distance_x, &retval->distance_y))	1586	if (!adjacent_map (op1->map, op2->map, &retval->distance_x, &retval->distance_y))
2243	{	1587	{
2244	/* be conservative and fill in _some_ data */	1588	/* be conservative and fill in _some_ data */
2245	retval->distance = 100000;	1589	retval->distance = 10000;
2246	retval->distance_x = 32767;	1590	retval->distance_x = 10000;
2247	retval->distance_y = 32767;	1591	retval->distance_y = 10000;
2248	retval->direction = 0;	1592	retval->direction = 0;
2249	retval->part = 0;	1593	retval->part = 0;
2250	}	1594	}
2251	else	1595	else
2252	{	1596	{
…		…
2257		1601
2258	best = op1;	1602	best = op1;
2259	/* If this is multipart, find the closest part now */	1603	/* If this is multipart, find the closest part now */
2260	if (!(flags & 0x1) && op1->more)	1604	if (!(flags & 0x1) && op1->more)
2261	{	1605	{
2262	object *tmp;
2263	int best_distance = retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y, tmpi;	1606	int best_distance = retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y, tmpi;
2264		1607
2265	/* we just take the offset of the piece to head to figure	1608	/* we just take the offset of the piece to head to figure
2266	* distance instead of doing all that work above again	1609	* distance instead of doing all that work above again
2267	* since the distance fields we set above are positive in the	1610	* since the distance fields we set above are positive in the
2268	* same axis as is used for multipart objects, the simply arithmetic	1611	* same axis as is used for multipart objects, the simply arithmetic
2269	* below works.	1612	* below works.
2270	*/	1613	*/
2271	for (tmp = op1->more; tmp != NULL; tmp = tmp->more)	1614	for (object *tmp = op1->more; tmp; tmp = tmp->more)
2272	{	1615	{
2273	tmpi = (op1->x - tmp->x + retval->distance_x) * (op1->x - tmp->x + retval->distance_x) +	1616	tmpi = (op1->x - tmp->x + retval->distance_x) * (op1->x - tmp->x + retval->distance_x) +
2274	(op1->y - tmp->y + retval->distance_y) * (op1->y - tmp->y + retval->distance_y);	1617	(op1->y - tmp->y + retval->distance_y) * (op1->y - tmp->y + retval->distance_y);
2275	if (tmpi < best_distance)	1618	if (tmpi < best_distance)
2276	{	1619	{
2277	best_distance = tmpi;	1620	best_distance = tmpi;
2278	best = tmp;	1621	best = tmp;
2279	}	1622	}
2280	}	1623	}
		1624
2281	if (best != op1)	1625	if (best != op1)
2282	{	1626	{
2283	retval->distance_x += op1->x - best->x;	1627	retval->distance_x += op1->x - best->x;
2284	retval->distance_y += op1->y - best->y;	1628	retval->distance_y += op1->y - best->y;
2285	}	1629	}
2286	}	1630	}
		1631
2287	retval->part = best;	1632	retval->part = best;
2288	retval->distance = isqrt (retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y);	1633	retval->distance = upos_max (abs (retval->distance_x), abs (retval->distance_y));
2289	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);	1634	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);
2290	}	1635	}
2291	}	1636	}
2292		1637
2293	/* this is basically the same as get_rangevector above, but instead of	1638	/* this is basically the same as get_rangevector above, but instead of
…		…
2298	* flags has no meaning for this function at this time - I kept it in to	1643	* flags has no meaning for this function at this time - I kept it in to
2299	* be more consistant with the above function and also in case they are needed	1644	* be more consistant with the above function and also in case they are needed
2300	* for something in the future. Also, since no object is pasted, the best	1645	* for something in the future. Also, since no object is pasted, the best
2301	* field of the rv_vector is set to NULL.	1646	* field of the rv_vector is set to NULL.
2302	*/	1647	*/
2303
2304	void	1648	void
2305	get_rangevector_from_mapcoord (const maptile *m, int x, int y, const object *op2, rv_vector * retval, int flags)	1649	get_rangevector_from_mapcoord (const maptile *m, int x, int y, const object *op2, rv_vector *retval, int flags)
2306	{	1650	{
2307	if (!adjacent_map (m, op2->map, &retval->distance_x, &retval->distance_y))	1651	if (!adjacent_map (m, op2->map, &retval->distance_x, &retval->distance_y))
2308	{	1652	{
2309	/* be conservative and fill in _some_ data */	1653	/* be conservative and fill in _some_ data */
2310	retval->distance = 100000;	1654	retval->distance = 100000;
…		…
2317	{	1661	{
2318	retval->distance_x += op2->x - x;	1662	retval->distance_x += op2->x - x;
2319	retval->distance_y += op2->y - y;	1663	retval->distance_y += op2->y - y;
2320		1664
2321	retval->part = NULL;	1665	retval->part = NULL;
2322	retval->distance = isqrt (retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y);	1666	retval->distance = idistance (retval->distance_x, retval->distance_y);
2323	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);	1667	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);
2324	}	1668	}
2325	}	1669	}
2326		1670
2327	/* Returns true of op1 and op2 are effectively on the same map	1671	/* Returns true of op1 and op2 are effectively on the same map
2328	* (as related to map tiling). Note that this looks for a path from	1672	* (as related to map tiling). Note that this looks for a path from
2329	* op1 to op2, so if the tiled maps are assymetric and op2 has a path	1673	* op1 to op2, so if the tiled maps are asymetric and op2 has a path
2330	* to op1, this will still return false.	1674	* to op1, this will still return false.
2331	* Note we only look one map out to keep the processing simple	1675	* Note we only look one map out to keep the processing simple
2332	* and efficient. This could probably be a macro.	1676	* and efficient. This could probably be a macro.
2333	* MSW 2001-08-05	1677	* MSW 2001-08-05
2334	*/	1678	*/
…		…
2347	op->remove ();	1691	op->remove ();
2348		1692
2349	return insert_ob_in_map_at (op, this, originator, flags, x, y);	1693	return insert_ob_in_map_at (op, this, originator, flags, x, y);
2350	}	1694	}
2351		1695
		1696	region *
		1697	maptile::region (int x, int y) const
		1698	{
		1699	if (regions
		1700	&& regionmap
		1701	&& !OUT_OF_REAL_MAP (this, x, y))
		1702	if (struct region *reg = regionmap [regions [y * width + x]])
		1703	return reg;
		1704
		1705	if (default_region)
		1706	return default_region;
		1707
		1708	return ::region::default_region ();
		1709	}
		1710
		1711	/* picks a random object from a style map.
		1712	* Redone by MSW so it should be faster and not use static
		1713	* variables to generate tables.
		1714	*/
		1715	object *
		1716	maptile::pick_random_object () const
		1717	{
		1718	/* while returning a null object will result in a crash, that
		1719	* is actually preferable to an infinite loop. That is because
		1720	* most servers will automatically restart in case of crash.
		1721	* Change the logic on getting the random space - shouldn't make
		1722	* any difference, but this seems clearer to me.
		1723	*/
		1724	for (int i = 1000; --i;)
		1725	{
		1726	object *pick = at (rndm (width), rndm (height)).bot;
		1727
		1728	// do not prefer big monsters just because they are big.
		1729	if (pick && pick->head_ () == pick)
		1730	return pick->head_ ();
		1731	}
		1732
		1733	// instead of crashing in the unlikely(?) case, try to return *something*
		1734	return get_archetype ("blocked");
		1735	}
		1736

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