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Comparing deliantra/server/common/map.C (file contents):
Revision 1.55 by root, Wed Dec 27 18:09:48 2006 UTC vs.
Revision 1.109 by root, Thu Jun 7 19:12:22 2007 UTC

1	/*	1	/*
2	CrossFire, A Multiplayer game for X-windows	2	* This file is part of Crossfire TRT, the Multiplayer Online Role Playing Game.
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 it
8	it under the terms of the GNU General Public License as published by	9	* under the terms of the GNU General Public License as published by the Free
9	the Free Software Foundation; either version 2 of the License, or	10	* Software Foundation; either version 2 of the License, or (at your option)
10	(at your option) any later version.	11	* 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, but
13	but WITHOUT ANY WARRANTY; without even the implied warranty of	14	* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	15	* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
15	GNU General Public License for more details.	16	* 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 along
18	along with this program; if not, write to the Free Software	19	* with Crossfire TRT; if not, write to the Free Software Foundation, Inc. 51
19	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	20	* Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20		21	*
21	The authors can be reached via e-mail at <crossfire@schmorp.de>	22	* The authors can be reached via e-mail to <crossfire@schmorp.de>
22	*/	23	*/
23		24
24	#include <global.h>
25	#include <funcpoint.h>
26
27	#include <loader.h>
28	#include <unistd.h>	25	#include <unistd.h>
29		26
		27	#include "global.h"
		28	#include "funcpoint.h"
		29
		30	#include "loader.h"
		31
30	#include "path.h"	32	#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		33
49	/*	34	/*
50	* This makes a path absolute outside the world of Crossfire.	35	* This makes a path absolute outside the world of Crossfire.
51	* In other words, it prepends LIBDIR/MAPDIR/ to the given path	36	* In other words, it prepends LIBDIR/MAPDIR/ to the given path
52	* and returns the pointer to a static array containing the result.	37	* and returns the pointer to a static array containing the result.
53	* it really should be called create_mapname	38	* it really should be called create_mapname
54	*/	39	*/
55
56	const char *	40	const char *
57	create_pathname (const char *name)	41	create_pathname (const char *name)
58	{	42	{
59	static char buf[MAX_BUF];	43	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);	44	snprintf (buf, sizeof (buf), "%s/%s/%s", settings.datadir, settings.mapdir, name);
68	return (buf);	45	return buf;
69	}	46	}
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		47
136	/*	48	/*
137	* This function checks if a file with the given path exists.	49	* This function checks if a file with the given path exists.
138	* -1 is returned if it fails, otherwise the mode of the file	50	* -1 is returned if it fails, otherwise the mode of the file
139	* is returned.	51	* is returned.
…		…
146	* the rest of the code only cares that the file is readable.	58	* 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	59	* when the editor goes away, the call to stat should probably be
148	* replaced by an access instead (similar to the windows one, but	60	* replaced by an access instead (similar to the windows one, but
149	* that seems to be missing the prepend_dir processing	61	* that seems to be missing the prepend_dir processing
150	*/	62	*/
151
152	int	63	int
153	check_path (const char *name, int prepend_dir)	64	check_path (const char *name, int prepend_dir)
154	{	65	{
155	char buf[MAX_BUF];	66	char buf[MAX_BUF];
156		67
157	char *endbuf;	68	char *endbuf;
158	struct stat statbuf;	69	struct stat statbuf;
159	int mode = 0;	70	int mode = 0;
160		71
161	if (prepend_dir)	72	if (prepend_dir)
162	strcpy (buf, create_pathname (name));	73	assign (buf, create_pathname (name));
163	else	74	else
164	strcpy (buf, name);	75	assign (buf, name);
165		76
166	/* old method (strchr(buf, '\0')) seemd very odd to me -	77	/* old method (strchr(buf, '\0')) seemd very odd to me -
167	* this method should be equivalant and is clearer.	78	* this method should be equivalant and is clearer.
168	* Can not use strcat because we need to cycle through	79	* Can not use strcat because we need to cycle through
169	* all the names.	80	* all the names.
…		…
182	if ((statbuf.st_mode & S_IWGRP && getegid () == statbuf.st_gid) ||	93	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))	94	(statbuf.st_mode & S_IWUSR && geteuid () == statbuf.st_uid) || (statbuf.st_mode & S_IWOTH))
184	mode |= 2;	95	mode |= 2;
185		96
186	return (mode);	97	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	}	98	}
226		99
227	/* This rolls up wall, blocks_magic, blocks_view, etc, all into	100	/* This rolls up wall, blocks_magic, blocks_view, etc, all into
228	* one function that just returns a P_.. value (see map.h)	101	* one function that just returns a P_.. value (see map.h)
229	* it will also do map translation for tiled maps, returning	102	* it will also do map translation for tiled maps, returning
…		…
235	* don't expect to insert/remove anything from those spaces.	108	* don't expect to insert/remove anything from those spaces.
236	*/	109	*/
237	int	110	int
238	get_map_flags (maptile *oldmap, maptile **newmap, sint16 x, sint16 y, sint16 *nx, sint16 *ny)	111	get_map_flags (maptile *oldmap, maptile **newmap, sint16 x, sint16 y, sint16 *nx, sint16 *ny)
239	{	112	{
240	sint16 newx, newy;
241	int retval = 0;
242	maptile *mp;
243
244	newx = x;	113	sint16 newx = x;
245	newy = y;	114	sint16 newy = y;
246		115
247	mp = get_map_from_coord (oldmap, &newx, &newy);	116	maptile *mp = get_map_from_coord (oldmap, &newx, &newy);
248		117
249	if (!mp)	118	if (!mp)
250	return P_OUT_OF_MAP;	119	return P_OUT_OF_MAP;
251
252	if (mp != oldmap)
253	retval |= P_NEW_MAP;
254		120
255	if (newmap) *newmap = mp;	121	if (newmap) *newmap = mp;
256	if (nx) *nx = newx;	122	if (nx) *nx = newx;
257	if (ny) *ny = newy;	123	if (ny) *ny = newy;
258		124
259	return retval | mp->at (newx, newy).flags ();	125	return mp->at (newx, newy).flags () | (mp != oldmap ? P_NEW_MAP : 0);
260	}	126	}
261		127
262	/*	128	/*
263	* Returns true if the given coordinate is blocked except by the	129	* Returns true if the given coordinate is blocked except by the
264	* object passed is not blocking. This is used with	130	* object passed is not blocking. This is used with
…		…
308	* let the player through (inventory checkers for example)	174	* let the player through (inventory checkers for example)
309	*/	175	*/
310	if (!(mflags & P_IS_ALIVE) && !OB_TYPE_MOVE_BLOCK (ob, blocked))	176	if (!(mflags & P_IS_ALIVE) && !OB_TYPE_MOVE_BLOCK (ob, blocked))
311	return 0;	177	return 0;
312		178
313	if (ob->head != NULL)
314	ob = ob->head;	179	ob = ob->head_ ();
315		180
316	/* We basically go through the stack of objects, and if there is	181	/* 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	182	* some other object that has NO_PASS or FLAG_ALIVE set, return
318	* true. If we get through the entire stack, that must mean	183	* true. If we get through the entire stack, that must mean
319	* ob is blocking it, so return 0.	184	* ob is blocking it, so return 0.
…		…
349	else	214	else
350	{	215	{
351	/* Broke apart a big nasty if into several here to make	216	/* Broke apart a big nasty if into several here to make
352	* this more readable. first check - if the space blocks	217	* this more readable. first check - if the space blocks
353	* movement, can't move here.	218	* movement, can't move here.
354	* second - if a monster, can't move there, unles it is a	219	* second - if a monster, can't move there, unless it is a
355	* hidden dm	220	* hidden dm
356	*/	221	*/
357	if (OB_MOVE_BLOCK (ob, tmp))	222	if (OB_MOVE_BLOCK (ob, tmp))
358	return 1;	223	return 1;
359	if (QUERY_FLAG (tmp, FLAG_ALIVE) && tmp->head != ob && tmp != ob &&	224
360	tmp->type != DOOR && !(QUERY_FLAG (tmp, FLAG_WIZ) && tmp->contr->hidden))	225	if (tmp->flag [FLAG_ALIVE]
		226	&& tmp->head_ () != ob
		227	&& tmp != ob
		228	&& tmp->type != DOOR
		229	&& !(tmp->flag [FLAG_WIZ] && tmp->contr->hidden))
361	return 1;	230	return 1;
362	}	231	}
363		232
364	}	233	}
365	return 0;	234	return 0;
366	}	235	}
367
368		236
369	/*	237	/*
370	* Returns true if the given object can't fit in the given spot.	238	* 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,	239	* This is meant for multi space objects - for single space objecs,
372	* just calling get_map_blocked and checking that against movement type	240	* just calling get_map_blocked and checking that against movement type
…		…
398	archetype *tmp;	266	archetype *tmp;
399	int flag;	267	int flag;
400	maptile *m1;	268	maptile *m1;
401	sint16 sx, sy;	269	sint16 sx, sy;
402		270
403	if (ob == NULL)	271	if (!ob)
404	{	272	{
405	flag = get_map_flags (m, &m1, x, y, &sx, &sy);	273	flag = get_map_flags (m, &m1, x, y, &sx, &sy);
406	if (flag & P_OUT_OF_MAP)	274	if (flag & P_OUT_OF_MAP)
407	return P_OUT_OF_MAP;	275	return P_OUT_OF_MAP;
408		276
409	/* don't have object, so don't know what types would block */	277	/* don't have object, so don't know what types would block */
410	return m1->at (sx, sy).move_block;	278	return m1->at (sx, sy).move_block;
411	}	279	}
412		280
413	for (tmp = ob->arch; tmp; tmp = tmp->more)	281	for (tmp = ob->arch; tmp; tmp = (archetype *)tmp->more)
414	{	282	{
415	flag = get_map_flags (m, &m1, x + tmp->clone.x, y + tmp->clone.y, &sx, &sy);	283	flag = get_map_flags (m, &m1, x + tmp->x, y + tmp->y, &sx, &sy);
416		284
417	if (flag & P_OUT_OF_MAP)	285	if (flag & P_OUT_OF_MAP)
418	return P_OUT_OF_MAP;	286	return P_OUT_OF_MAP;
419	if (flag & P_IS_ALIVE)	287	if (flag & P_IS_ALIVE)
420	return P_IS_ALIVE;	288	return P_IS_ALIVE;
421		289
422	mapspace &ms = m1->at (sx, sy);	290	mapspace &ms = m1->at (sx, sy);
423
424		291
425	/* find_first_free_spot() calls this function. However, often	292	/* find_first_free_spot() calls this function. However, often
426	* ob doesn't have any move type (when used to place exits)	293	* 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.	294	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.
428	*/	295	*/
…		…
444	* into inventory, but just links them. What this does is go through	311	* into inventory, but just links them. What this does is go through
445	* and insert them properly.	312	* and insert them properly.
446	* The object 'container' is the object that contains the inventory.	313	* The object 'container' is the object that contains the inventory.
447	* This is needed so that we can update the containers weight.	314	* This is needed so that we can update the containers weight.
448	*/	315	*/
449
450	void	316	void
451	fix_container (object *container)	317	fix_container (object *container)
452	{	318	{
453	object *tmp = container->inv, *next;	319	object *tmp = container->inv, *next;
454		320
455	container->inv = NULL;	321	container->inv = 0;
456	while (tmp != NULL)	322	while (tmp)
457	{	323	{
458	next = tmp->below;	324	next = tmp->below;
459	if (tmp->inv)	325	if (tmp->inv)
460	fix_container (tmp);	326	fix_container (tmp);
		327
461	(void) insert_ob_in_ob (tmp, container);	328	insert_ob_in_ob (tmp, container);
462	tmp = next;	329	tmp = next;
463	}	330	}
		331
464	/* sum_weight will go through and calculate what all the containers are	332	/* sum_weight will go through and calculate what all the containers are
465	* carrying.	333	* carrying.
466	*/	334	*/
467	sum_weight (container);	335	sum_weight (container);
468	}	336	}
469		337
		338	void
		339	maptile::set_object_flag (int flag, int value)
		340	{
		341	if (!spaces)
		342	return;
		343
		344	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		345	for (object *tmp = ms->bot; tmp; tmp = tmp->above)
		346	tmp->flag [flag] = value;
		347	}
		348
470	/* link_multipart_objects go through all the objects on the map looking	349	/* 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	350	* 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	351	* 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	352	* they are saved).
474	* the more sections and not re-add sections for them.
475	*/	353	*/
476	static void	354	void
477	link_multipart_objects (maptile *m)	355	maptile::link_multipart_objects ()
478	{	356	{
479	int x, y;	357	if (!spaces)
480	object *tmp, *op, *last, *above;	358	return;
481	archetype *at;
482		359
483	for (x = 0; x < m->width; x++)	360	for (mapspace *ms = spaces + size (); ms-- > spaces; )
484	for (y = 0; y < m->height; y++)	361	for (object *op = ms->bot; op; op = op->above)
485	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = above)
486	{	362	{
487	above = tmp->above;
488
489	/* already multipart - don't do anything more */	363	/* already multipart - don't do anything more */
490	if (tmp->head || tmp->more)	364	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	{	365	{
498	op = arch_to_object (at);	366	op->remove ();
499		367	op->expand_tail ();
500	/* update x,y coordinates */
501	op->x += tmp->x;
502	op->y += tmp->y;
503	op->head = tmp;
504	op->map = m;
505	last->more = op;
506	op->name = tmp->name;
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	*/
513	insert_ob_in_map (op, op->map, tmp, INS_NO_MERGE | INS_ABOVE_FLOOR_ONLY | INS_NO_WALK_ON);	368	insert (op, op->x, op->y, 0, INS_NO_MERGE | INS_ABOVE_FLOOR_ONLY | INS_NO_WALK_ON);
514	} /* for at = tmp->arch->more */	369	}
515	} /* for objects on this space */	370	}
516	}	371	}
517		372
518	/*	373	/*
519	* Loads (ands parses) the objects into a given map from the specified	374	* Loads (ands parses) the objects into a given map from the specified
520	* file pointer.	375	* file pointer.
521	* mapflags is the same as we get with load_original_map
522	*/	376	*/
523	void	377	bool
524	load_objects (maptile *m, object_thawer & fp, int mapflags)	378	maptile::_load_objects (object_thawer &f)
525	{	379	{
526	int i, j;	380	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	{	381	{
535	/* if the archetype for the object is null, means that we	382	coroapi::cede_to_tick_every (100); // cede once in a while
536	* got an invalid object. Don't do anything with it - the game	383
537	* or editor will not be able to do anything with it either.	384	switch (f.kw)
538	*/
539	if (op->arch == NULL)
540	{	385	{
541	LOG (llevDebug, "Discarding object without arch: %s\n", op->name ? (const char *) op->name : "(null)");	386	case KW_arch:
542	continue;	387	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	388	{
		389	if (op->inv)
		390	sum_weight (op);
		391
552	insert_ob_in_map (op, m, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ON_TOP | INS_MAP_LOAD);	392	insert_ob_in_map (op, this, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ON_TOP | INS_MAP_LOAD);
		393	}
553		394
554	if (op->inv)	395	continue;
555	sum_weight (op);
556		396
557	prev = op, last_more = op;
558	break;
559
560	case LL_MORE:	397	case KW_EOF:
561	insert_ob_in_map (op, m, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ABOVE_FLOOR_ONLY);	398	return true;
562	op->head = prev, last_more->more = op, last_more = op;	399
		400	default:
		401	if (!f.parse_error ("map file"))
		402	return false;
563	break;	403	break;
564	}	404	}
565		405
566	if (mapflags & MAP_STYLE)	406	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	{	407	}
575	for (j = 0; j < m->height; j++)	408
		409	return true;
		410	}
		411
		412	void
		413	maptile::activate ()
		414	{
		415	active = true;
		416
		417	if (spaces)
		418	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		419	for (object *op = ms->bot; op; op = op->above)
		420	op->activate_recursive ();
		421	}
		422
		423	void
		424	maptile::deactivate ()
		425	{
		426	active = false;
		427
		428	if (spaces)
		429	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		430	for (object *op = ms->bot; op; op = op->above)
		431	op->deactivate_recursive ();
		432	}
		433
		434	bool
		435	maptile::_save_objects (object_freezer &f, int flags)
		436	{
		437	coroapi::cede_to_tick ();
		438
		439	if (flags & IO_HEADER)
		440	_save_header (f);
		441
		442	if (!spaces)
		443	return false;
		444
		445	for (int i = 0; i < size (); ++i)
		446	{
		447	int unique = 0;
		448	for (object *op = spaces [i].bot; op; op = op->above)
576	{	449	{
		450	if (op->flag [FLAG_UNIQUE] && op->flag [FLAG_IS_FLOOR])
577	unique = 0;	451	unique = 1;
578	/* check for unique items, or unique squares */	452
579	for (otmp = GET_MAP_OB (m, i, j); otmp; otmp = otmp->above)	453	if (!op->can_map_save ())
		454	continue;
		455
		456	if (unique || op->flag [FLAG_UNIQUE])
580	{	457	{
581	if (QUERY_FLAG (otmp, FLAG_UNIQUE) || QUERY_FLAG (otmp, FLAG_OBJ_SAVE_ON_OVL))	458	if (flags & IO_UNIQUES)
582	unique = 1;	459	op->write (f);
583
584	if (!(mapflags & (MAP_OVERLAY | MAP_PLAYER_UNIQUE) || unique))
585	SET_FLAG (otmp, FLAG_OBJ_ORIGINAL);
586	}	460	}
		461	else if (flags & IO_OBJECTS)
		462	op->write (f);
587	}	463	}
588	}	464	}
589		465
590	op->destroy ();	466	coroapi::cede_to_tick ();
591	link_multipart_objects (m);
592	}
593		467
594	/* This saves all the objects on the map in a non destructive fashion.	468	return true;
595	* Modified by MSW 2001-07-01 to do in a single pass - reduces code,	469	}
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		470
605	/* first pass - save one-part objects */	471	bool
606	for (i = 0; i < m->width; i++)	472	maptile::_load_objects (const char *path, bool skip_header)
607	for (j = 0; j < m->height; j++)	473	{
		474	object_thawer f (path);
		475
		476	if (!f)
		477	return false;
		478
		479	f.next ();
		480
		481	if (skip_header)
		482	for (;;)
608	{	483	{
609	unique = 0;	484	keyword kw = f.kw;
610		485	f.skip ();
611	for (op = m->at (i, j).bot; op; op = op->above)	486	if (kw == KW_end)
612	{	487	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	}	488	}
		489
		490	return _load_objects (f);
		491	}
		492
		493	bool
		494	maptile::_save_objects (const char *path, int flags)
		495	{
		496	object_freezer freezer;
		497
		498	if (!_save_objects (freezer, flags))
		499	return false;
		500
		501	return freezer.save (path);
625	}	502	}
626		503
627	maptile::maptile ()	504	maptile::maptile ()
628	{	505	{
629	in_memory = MAP_SWAPPED;	506	in_memory = MAP_SWAPPED;
630		507
631	/* The maps used to pick up default x and y values from the	508	/* The maps used to pick up default x and y values from the
632	* map archetype. Mimic that behaviour.	509	* map archetype. Mimic that behaviour.
633	*/	510	*/
		511	width = 16;
		512	height = 16;
		513	timeout = 300;
		514	max_nrof = 1000; // 1000 items of anything
		515	max_volume = 2000000; // 2m³
		516	}
		517
		518	maptile::maptile (int w, int h)
		519	{
		520	in_memory = MAP_SWAPPED;
		521
634	width = 16;	522	width = w;
635	height = 16;	523	height = h;
636	reset_timeout = 0;	524	reset_timeout = 0;
637	timeout = 300;	525	timeout = 300;
638	enter_x = 0;	526	enter_x = 0;
639	enter_y = 0;	527	enter_y = 0;
640	/*set part to -1 indicating conversion to weather map not yet done */
641	worldpartx = -1;
642	worldparty = -1;
643	}
644		528
645	void	529	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	{
659	for_all_maps (m)
660	if (m->next = this)
661	{
662	m->next = next;
663	return;
664	}
665
666	LOG (llevError, "maptile::unlink() map not on list: %s\n", path);
667	}
668	}
669
670	/*
671	* Allocates, initialises, and returns a pointer to a maptile.
672	* Modified to no longer take a path option which was not being
673	* used anyways. MSW 2001-07-01
674	*/
675	maptile *
676	get_linked_map (void)
677	{
678	maptile *map = new maptile;
679	map->link ();
680	return map;
681	}	530	}
682		531
683	/*	532	/*
684	* Allocates the arrays contained in a maptile.	533	* Allocates the arrays contained in a maptile.
685	* This basically allocates the dynamic array of spaces for the	534	* This basically allocates the dynamic array of spaces for the
686	* map.	535	* map.
687	*/	536	*/
688	void	537	void
689	maptile::allocate ()	538	maptile::alloc ()
690	{	539	{
691	in_memory = MAP_IN_MEMORY;
692
693	/* Log this condition and free the storage. We could I suppose
694	* realloc, but if the caller is presuming the data will be intact,
695	* that is their poor assumption.
696	*/
697	if (spaces)	540	if (spaces)
698	{	541	return;
699	LOG (llevError, "allocate_map called with already allocated map (%s)\n", path);
700	sfree (spaces, size ());
701	}
702		542
703	spaces = salloc0<mapspace> (size ());	543	spaces = salloc0<mapspace> (size ());
704	}
705
706	/* Create and returns a map of the specific size. Used
707	* in random map code and the editor.
708	*/
709	maptile *
710	get_empty_map (int sizex, int sizey)
711	{
712	maptile *m = get_linked_map ();
713
714	m->width = sizex;
715	m->height = sizey;
716	m->in_memory = MAP_SWAPPED;
717
718	m->allocate ();
719
720	return m;
721	}	544	}
722		545
723	/* Takes a string from a map definition and outputs a pointer to the array of shopitems	546	/* Takes a string from a map definition and outputs a pointer to the array of shopitems
724	* corresponding to that string. Memory is allocated for this, it must be freed	547	* corresponding to that string. Memory is allocated for this, it must be freed
725	* at a later date.	548	* at a later date.
…		…
841	* put all the stuff in the map object so that names actually make	664	* put all the stuff in the map object so that names actually make
842	* sense.	665	* sense.
843	* This could be done in lex (like the object loader), but I think	666	* This could be done in lex (like the object loader), but I think
844	* currently, there are few enough fields this is not a big deal.	667	* currently, there are few enough fields this is not a big deal.
845	* MSW 2001-07-01	668	* MSW 2001-07-01
846	* return 0 on success, 1 on failure.
847	*/	669	*/
848		670	bool
849	static int	671	maptile::_load_header (object_thawer &thawer)
850	load_map_header (object_thawer & fp, maptile *m)
851	{	672	{
852	char buf[HUGE_BUF], msgbuf[HUGE_BUF], maplorebuf[HUGE_BUF], *key = NULL, *value, *end;	673	for (;;)
853	int msgpos = 0;
854	int maplorepos = 0;
855
856	while (fgets (buf, HUGE_BUF, fp) != NULL)
857	{	674	{
858	buf[HUGE_BUF - 1] = 0;	675	thawer.next ();
859	key = buf;
860		676
861	while (isspace (*key))	677	switch (thawer.kw)
862	key++;
863
864	if (*key == 0)
865	continue; /* empty line */
866
867	value = strchr (key, ' ');
868
869	if (!value)
870	{	678	{
871	if ((end = strchr (key, '\n')))	679	case KW_msg:
872	*end = 0;	680	thawer.get_ml (KW_endmsg, msg);
		681	break;
		682
		683	case KW_lore: // CF+ extension
		684	thawer.get_ml (KW_endlore, maplore);
		685	break;
		686
		687	case KW_maplore:
		688	thawer.get_ml (KW_endmaplore, maplore);
		689	break;
		690
		691	case KW_arch:
		692	if (strcmp (thawer.get_str (), "map"))
		693	LOG (llevError, "%s: loading map and got a non 'arch map' line (arch %s), skipping.\n", &path, thawer.get_str ());
		694	break;
		695
		696	case KW_oid:
		697	thawer.get (this, thawer.get_sint32 ());
		698	break;
		699
		700	case KW_file_format_version: break; // nop
		701
		702	case KW_name: thawer.get (name); break;
		703	case KW_attach: thawer.get (attach); break;
		704	case KW_reset_time: thawer.get (reset_time); break;
		705	case KW_shopgreed: thawer.get (shopgreed); break;
		706	case KW_shopmin: thawer.get (shopmin); break;
		707	case KW_shopmax: thawer.get (shopmax); break;
		708	case KW_shoprace: thawer.get (shoprace); break;
		709	case KW_outdoor: thawer.get (outdoor); break;
		710	case KW_temp: thawer.get (temp); break;
		711	case KW_pressure: thawer.get (pressure); break;
		712	case KW_humid: thawer.get (humid); break;
		713	case KW_windspeed: thawer.get (windspeed); break;
		714	case KW_winddir: thawer.get (winddir); break;
		715	case KW_sky: thawer.get (sky); break;
		716
		717	case KW_per_player: thawer.get (per_player); break;
		718	case KW_per_party: thawer.get (per_party); break;
		719	case KW_no_reset: thawer.get (no_reset); break;
		720
		721	case KW_region: default_region = region::find (thawer.get_str ()); break;
		722	case KW_shopitems: shopitems = parse_shop_string (thawer.get_str ()); break;
		723
		724	// old names new names
		725	case KW_hp: case KW_enter_x: thawer.get (enter_x); break;
		726	case KW_sp: case KW_enter_y: thawer.get (enter_y); break;
		727	case KW_x: case KW_width: thawer.get (width); break;
		728	case KW_y: case KW_height: thawer.get (height); break;
		729	case KW_weight: case KW_reset_timeout: thawer.get (reset_timeout); break;
		730	case KW_value: case KW_swap_time: thawer.get (timeout); break;
		731	case KW_level: case KW_difficulty: thawer.get (difficulty); difficulty = clamp (difficulty, 1, settings.max_level); break;
		732	case KW_invisible: case KW_darkness: thawer.get (darkness); break;
		733	case KW_stand_still: case KW_fixed_resettime: thawer.get (fixed_resettime); break;
		734
		735	case KW_tile_path_1: thawer.get (tile_path [0]); break;
		736	case KW_tile_path_2: thawer.get (tile_path [1]); break;
		737	case KW_tile_path_3: thawer.get (tile_path [2]); break;
		738	case KW_tile_path_4: thawer.get (tile_path [3]); break;
		739
		740	case KW_end:
		741	return true;
		742
		743	default:
		744	if (!thawer.parse_error ("map", 0))
		745	return false;
		746	break;
873	}	747	}
874	else
875	{
876	*value = 0;
877	value++;
878	end = strchr (value, '\n');
879
880	while (isspace (*value))
881	{
882	value++;
883
884	if (*value == '\0' || value == end)
885	{
886	/* Nothing but spaces. */
887	value = NULL;
888	break;
889	}
890	}
891	}
892
893	if (!end)
894	{
895	LOG (llevError, "Error loading map header - did not find a newline - perhaps file is truncated? Buf=%s\n", buf);
896	return 1;
897	}
898
899	/* key is the field name, value is what it should be set
900	* to. We've already done the work to null terminate key,
901	* and strip off any leading spaces for both of these.
902	* We have not touched the newline at the end of the line -
903	* these are needed for some values. the end pointer
904	* points to the first of the newlines.
905	* value could be NULL! It would be easy enough to just point
906	* this to "" to prevent cores, but that would let more errors slide
907	* through.
908	*
909	* First check for entries that do not use the value parameter, then
910	* validate that value is given and check for the remaining entries
911	* that use the parameter.
912	*/
913
914	if (!strcmp (key, "msg"))
915	{
916	while (fgets (buf, HUGE_BUF, fp) != NULL)
917	{
918	if (!strcmp (buf, "endmsg\n"))
919	break;
920	else
921	{
922	/* slightly more efficient than strcat */
923	strcpy (msgbuf + msgpos, buf);
924	msgpos += strlen (buf);
925	}
926	}
927	/* There are lots of maps that have empty messages (eg, msg/endmsg
928	* with nothing between). There is no reason in those cases to
929	* keep the empty message. Also, msgbuf contains garbage data
930	* when msgpos is zero, so copying it results in crashes
931	*/
932	if (msgpos != 0)
933	m->msg = strdup (msgbuf);
934	}
935	else if (!strcmp (key, "maplore"))
936	{
937	while (fgets (buf, HUGE_BUF, fp) != NULL)
938	{
939	if (!strcmp (buf, "endmaplore\n"))
940	break;
941	else
942	{
943	/* slightly more efficient than strcat */
944	strcpy (maplorebuf + maplorepos, buf);
945	maplorepos += strlen (buf);
946	}
947	}
948	if (maplorepos != 0)
949	m->maplore = strdup (maplorebuf);
950	}
951	else if (!strcmp (key, "end"))
952	{
953	break;
954	}
955	else if (value == NULL)
956	{
957	LOG (llevError, "Got '%s' line without parameter in map header\n", key);
958	}
959	else if (!strcmp (key, "arch"))
960	{
961	/* This is an oddity, but not something we care about much. */
962	if (strcmp (value, "map\n"))
963	LOG (llevError, "loading map and got a non 'arch map' line(%s %s)?\n", key, value);
964	}
965	else if (!strcmp (key, "name"))
966	{
967	*end = 0;
968	m->name = strdup (value);
969	}
970	/* first strcmp value on these are old names supported
971	* for compatibility reasons. The new values (second) are
972	* what really should be used.
973	*/
974	else if (!strcmp (key, "oid"))
975	fp.get (m, atoi (value));
976	else if (!strcmp (key, "attach"))
977	m->attach = value;
978	else if (!strcmp (key, "hp") || !strcmp (key, "enter_x"))
979	m->enter_x = atoi (value);
980	else if (!strcmp (key, "sp") || !strcmp (key, "enter_y"))
981	m->enter_y = atoi (value);
982	else if (!strcmp (key, "x") || !strcmp (key, "width"))
983	m->width = atoi (value);
984	else if (!strcmp (key, "y") || !strcmp (key, "height"))
985	m->height = atoi (value);
986	else if (!strcmp (key, "weight") || !strcmp (key, "reset_timeout"))
987	m->reset_timeout = atoi (value);
988	else if (!strcmp (key, "value") || !strcmp (key, "swap_time"))
989	m->timeout = atoi (value);
990	else if (!strcmp (key, "level") || !strcmp (key, "difficulty"))
991	m->difficulty = clamp (atoi (value), 1, settings.max_level);
992	else if (!strcmp (key, "invisible") || !strcmp (key, "darkness"))
993	m->darkness = atoi (value);
994	else if (!strcmp (key, "stand_still") || !strcmp (key, "fixed_resettime"))
995	m->fixed_resettime = atoi (value);
996	else if (!strcmp (key, "unique"))
997	m->unique = atoi (value);
998	else if (!strcmp (key, "template"))
999	m->templatemap = atoi (value);
1000	else if (!strcmp (key, "region"))
1001	m->region = get_region_by_name (value);
1002	else if (!strcmp (key, "shopitems"))
1003	{
1004	*end = 0;
1005	m->shopitems = parse_shop_string (value);
1006	}
1007	else if (!strcmp (key, "shopgreed"))
1008	m->shopgreed = atof (value);
1009	else if (!strcmp (key, "shopmin"))
1010	m->shopmin = atol (value);
1011	else if (!strcmp (key, "shopmax"))
1012	m->shopmax = atol (value);
1013	else if (!strcmp (key, "shoprace"))
1014	{
1015	*end = 0;
1016	m->shoprace = strdup (value);
1017	}
1018	else if (!strcmp (key, "outdoor"))
1019	m->outdoor = atoi (value);
1020	else if (!strcmp (key, "temp"))
1021	m->temp = atoi (value);
1022	else if (!strcmp (key, "pressure"))
1023	m->pressure = atoi (value);
1024	else if (!strcmp (key, "humid"))
1025	m->humid = atoi (value);
1026	else if (!strcmp (key, "windspeed"))
1027	m->windspeed = atoi (value);
1028	else if (!strcmp (key, "winddir"))
1029	m->winddir = atoi (value);
1030	else if (!strcmp (key, "sky"))
1031	m->sky = atoi (value);
1032	else if (!strcmp (key, "nosmooth"))
1033	m->nosmooth = atoi (value);
1034	else if (!strncmp (key, "tile_path_", 10))
1035	{
1036	int tile = atoi (key + 10);
1037
1038	if (tile < 1 || tile > 4)
1039	{
1040	LOG (llevError, "load_map_header: tile location %d out of bounds (%s)\n", tile, m->path);
1041	}
1042	else
1043	{
1044	char *path;
1045
1046	*end = 0;
1047
1048	if (m->tile_path[tile - 1])
1049	{
1050	LOG (llevError, "load_map_header: tile location %d duplicated (%s)\n", tile, m->path);
1051	free (m->tile_path[tile - 1]);
1052	m->tile_path[tile - 1] = NULL;
1053	}
1054
1055	if (check_path (value, 1) != -1)
1056	{
1057	/* The unadorned path works. */
1058	path = value;
1059	}
1060	else
1061	{
1062	/* Try again; it could be a relative exit. */
1063
1064	path = path_combine_and_normalize (m->path, value);
1065
1066	if (check_path (path, 1) == -1)
1067	{
1068	LOG (llevError, "get_map_header: Bad tile path %s %s\n", m->path, value);
1069	path = NULL;
1070	}
1071	}
1072
1073	if (editor)
1074	{
1075	/* Use the value as in the file. */
1076	m->tile_path[tile - 1] = strdup (value);
1077	}
1078	else if (path != NULL)
1079	{
1080	/* Use the normalized value. */
1081	m->tile_path[tile - 1] = strdup (path);
1082	}
1083	} /* end if tile direction (in)valid */
1084	}
1085	else
1086	LOG (llevError, "Got unknown value in map header: %s %s\n", key, value);
1087	}
1088
1089	if (!key || strcmp (key, "end"))
1090	{	748	}
1091	LOG (llevError, "Got premature eof on map header!\n");
1092	return 1;
1093	}
1094		749
1095	return 0;	750	abort ();
1096	}	751	}
1097		752
1098	/*	753	bool
1099	* Opens the file "filename" and reads information about the map	754	maptile::_load_header (const char *path)
1100	* from the given file, and stores it in a newly allocated
1101	* maptile. A pointer to this structure is returned, or NULL on failure.
1102	* flags correspond to those in map.h. Main ones used are
1103	* MAP_PLAYER_UNIQUE, in which case we don't do any name changes, and
1104	* MAP_BLOCK, in which case we block on this load. This happens in all
1105	* cases, no matter if this flag is set or not.
1106	* MAP_STYLE: style map - don't add active objects, don't add to server
1107	* managed map list.
1108	*/
1109	maptile *
1110	load_original_map (const char *filename, int flags)
1111	{	755	{
1112	maptile *m;
1113	char pathname[MAX_BUF];
1114
1115	if (flags & MAP_PLAYER_UNIQUE)
1116	strcpy (pathname, filename);
1117	else if (flags & MAP_OVERLAY)
1118	strcpy (pathname, create_overlay_pathname (filename));
1119	else
1120	strcpy (pathname, create_pathname (filename));
1121
1122	LOG (llevDebug, "load_original_map(%x): %s (%s)\n", flags, filename, pathname);
1123
1124	object_thawer thawer (pathname);	756	object_thawer thawer (path);
1125		757
1126	if (!thawer)	758	if (!thawer)
1127	return 0;	759	return false;
1128		760
1129	m = get_linked_map ();	761	return _load_header (thawer);
1130
1131	strcpy (m->path, filename);
1132	if (load_map_header (thawer, m))
1133	{
1134	LOG (llevError, "Error loading map header for %s, flags=%d\n", filename, flags);
1135	delete_map (m);
1136	return 0;
1137	}
1138
1139	m->allocate ();
1140
1141	m->in_memory = MAP_LOADING;
1142	load_objects (m, thawer, flags & (MAP_BLOCK | MAP_STYLE));
1143
1144	m->in_memory = MAP_IN_MEMORY;
1145	if (!m->difficulty)
1146	m->difficulty = calculate_difficulty (m);
1147	set_map_reset_time (m);
1148	m->instantiate ();
1149	return (m);
1150	}
1151
1152	/*
1153	* Loads a map, which has been loaded earlier, from file.
1154	* Return the map object we load into (this can change from the passed
1155	* option if we can't find the original map)
1156	*/
1157	static maptile *
1158	load_temporary_map (maptile *m)
1159	{
1160	char buf[MAX_BUF];
1161
1162	if (!m->tmpname)
1163	{
1164	LOG (llevError, "No temporary filename for map %s\n", m->path);
1165	strcpy (buf, m->path);
1166	delete_map (m);
1167	m = load_original_map (buf, 0);
1168	if (m == NULL)
1169	return NULL;
1170	fix_auto_apply (m); /* Chests which open as default */
1171	return m;
1172	}
1173
1174	object_thawer thawer (m->tmpname);
1175
1176	if (!thawer)
1177	{
1178	strcpy (buf, m->path);
1179	delete_map (m);
1180	m = load_original_map (buf, 0);
1181	if (!m)
1182	return NULL;
1183	fix_auto_apply (m); /* Chests which open as default */
1184	return m;
1185	}
1186
1187	if (load_map_header (thawer, m))
1188	{
1189	LOG (llevError, "Error loading map header for %s (%s)\n", m->path, m->tmpname);
1190	delete_map (m);
1191	m = load_original_map (m->path, 0);
1192	return NULL;
1193	}
1194
1195	m->allocate ();
1196
1197	m->in_memory = MAP_LOADING;
1198	load_objects (m, thawer, 0);
1199
1200	m->in_memory = MAP_IN_MEMORY;
1201	INVOKE_MAP (SWAPIN, m);
1202	return m;
1203	}
1204
1205	/*
1206	* Loads a map, which has been loaded earlier, from file.
1207	* Return the map object we load into (this can change from the passed
1208	* option if we can't find the original map)
1209	*/
1210	maptile *
1211	load_overlay_map (const char *filename, maptile *m)
1212	{
1213	char pathname[MAX_BUF];
1214
1215	strcpy (pathname, create_overlay_pathname (filename));
1216
1217	object_thawer thawer (pathname);
1218
1219	if (!thawer)
1220	return m;
1221
1222	if (load_map_header (thawer, m))
1223	{
1224	LOG (llevError, "Error loading map header for overlay %s (%s)\n", m->path, pathname);
1225	delete_map (m);
1226	m = load_original_map (m->path, 0);
1227	return 0;
1228	}
1229	/*m->allocate ();*/
1230
1231	m->in_memory = MAP_LOADING;
1232	load_objects (m, thawer, MAP_OVERLAY);
1233
1234	m->in_memory = MAP_IN_MEMORY;
1235	return m;
1236	}	762	}
1237		763
1238	/******************************************************************************	764	/******************************************************************************
1239	* This is the start of unique map handling code	765	* This is the start of unique map handling code
1240	*****************************************************************************/	766	*****************************************************************************/
1241		767
1242	/* This goes through map 'm' and removed any unique items on the map. */	768	/* This goes through the maptile and removed any unique items on the map. */
1243	static void	769	void
1244	delete_unique_items (maptile *m)	770	maptile::clear_unique_items ()
1245	{	771	{
1246	int i, j, unique;	772	for (int i = 0; i < size (); ++i)
1247	object *op, *next;
1248
1249	for (i = 0; i < m->width; i++)
1250	for (j = 0; j < m->height; j++)
1251	{	773	{
1252	unique = 0;	774	int unique = 0;
1253		775	for (object *op = spaces [i].bot; op; )
1254	for (op = GET_MAP_OB (m, i, j); op; op = next)
1255	{	776	{
1256	next = op->above;	777	object *above = op->above;
1257		778
1258	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))	779	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))
1259	unique = 1;	780	unique = 1;
1260		781
1261	if (op->head == NULL && (QUERY_FLAG (op, FLAG_UNIQUE) || unique))	782	if (op->head_ () == op && (QUERY_FLAG (op, FLAG_UNIQUE) || unique))
1262	{	783	{
1263	op->destroy_inv (false);	784	op->destroy_inv (false);
1264	op->destroy ();	785	op->destroy ();
1265	}	786	}
1266	}
1267	}
1268	}
1269		787
1270	/*	788	op = above;
1271	* Loads unique objects from file(s) into the map which is in memory
1272	* m is the map to load unique items into.
1273	*/
1274	static void
1275	load_unique_objects (maptile *m)
1276	{
1277	int count;
1278	char firstname[MAX_BUF];
1279
1280	for (count = 0; count < 10; count++)
1281	{
1282	sprintf (firstname, "%s.v%02d", create_items_path (m->path), count);
1283	if (!access (firstname, R_OK))
1284	break;
1285	}
1286	/* If we get here, we did not find any map */
1287	if (count == 10)
1288	return;
1289
1290	object_thawer thawer (firstname);
1291
1292	if (!thawer)
1293	return;
1294
1295	m->in_memory = MAP_LOADING;
1296	if (m->tmpname == NULL) /* if we have loaded unique items from */
1297	delete_unique_items (m); /* original map before, don't duplicate them */
1298
1299	load_objects (m, thawer, 0);
1300
1301	m->in_memory = MAP_IN_MEMORY;
1302	}
1303
1304	/*
1305	* Saves a map to file. If flag is set, it is saved into the same
1306	* file it was (originally) loaded from. Otherwise a temporary
1307	* filename will be genarated, and the file will be stored there.
1308	* The temporary filename will be stored in the maptileure.
1309	* If the map is unique, we also save to the filename in the map
1310	* (this should have been updated when first loaded)
1311	*/
1312	int
1313	new_save_map (maptile *m, int flag)
1314	{
1315	char filename[MAX_BUF], buf[MAX_BUF], shop[MAX_BUF];
1316	int i;
1317
1318	if (flag && !*m->path)
1319	{
1320	LOG (llevError, "Tried to save map without path.\n");
1321	return -1;
1322	}
1323
1324	if (flag || (m->unique) || (m->templatemap))
1325	{
1326	if (!m->unique && !m->templatemap)
1327	{ /* flag is set */
1328	if (flag == 2)
1329	strcpy (filename, create_overlay_pathname (m->path));
1330	else
1331	strcpy (filename, create_pathname (m->path));
1332	}	789	}
1333	else
1334	strcpy (filename, m->path);
1335
1336	make_path_to_file (filename);
1337	}
1338	else
1339	{	790	}
1340	if (!m->tmpname)	791	}
1341	m->tmpname = tempnam (settings.tmpdir, NULL);
1342		792
1343	strcpy (filename, m->tmpname);	793	bool
		794	maptile::_save_header (object_freezer &freezer)
		795	{
		796	#define MAP_OUT(k) freezer.put (KW_ ## k, k)
		797	#define MAP_OUT2(k,v) freezer.put (KW_ ## k, v)
		798
		799	MAP_OUT2 (arch, "map");
		800
		801	if (name) MAP_OUT (name);
		802	MAP_OUT (swap_time);
		803	MAP_OUT (reset_time);
		804	MAP_OUT (reset_timeout);
		805	MAP_OUT (fixed_resettime);
		806	MAP_OUT (no_reset);
		807	MAP_OUT (difficulty);
		808
		809	if (default_region) MAP_OUT2 (region, default_region->name);
		810
		811	if (shopitems)
1344	}	812	{
		813	char shop[MAX_BUF];
		814	print_shop_string (this, shop);
		815	MAP_OUT2 (shopitems, shop);
		816	}
1345		817
1346	LOG (llevDebug, "Saving map %s to %s\n", m->path, filename);	818	MAP_OUT (shopgreed);
1347	m->in_memory = MAP_SAVING;	819	MAP_OUT (shopmin);
		820	MAP_OUT (shopmax);
		821	if (shoprace) MAP_OUT (shoprace);
		822	MAP_OUT (darkness);
		823	MAP_OUT (width);
		824	MAP_OUT (height);
		825	MAP_OUT (enter_x);
		826	MAP_OUT (enter_y);
1348		827
		828	if (msg) freezer.put (KW_msg , KW_endmsg , msg);
		829	if (maplore) freezer.put (KW_maplore, KW_endmaplore, maplore);
		830
		831	MAP_OUT (outdoor);
		832	MAP_OUT (temp);
		833	MAP_OUT (pressure);
		834	MAP_OUT (humid);
		835	MAP_OUT (windspeed);
		836	MAP_OUT (winddir);
		837	MAP_OUT (sky);
		838
		839	MAP_OUT (per_player);
		840	MAP_OUT (per_party);
		841
		842	if (tile_path [0]) MAP_OUT2 (tile_path_1, tile_path [0]);
		843	if (tile_path [1]) MAP_OUT2 (tile_path_2, tile_path [1]);
		844	if (tile_path [2]) MAP_OUT2 (tile_path_3, tile_path [2]);
		845	if (tile_path [3]) MAP_OUT2 (tile_path_4, tile_path [3]);
		846
		847	freezer.put (this);
		848	freezer.put (KW_end);
		849
		850	return true;
		851	}
		852
		853	bool
		854	maptile::_save_header (const char *path)
		855	{
1349	object_freezer freezer;	856	object_freezer freezer;
1350		857
1351	/* legacy */	858	if (!_save_header (freezer))
1352	fprintf (freezer, "arch map\n");	859	return false;
1353	if (m->name)
1354	fprintf (freezer, "name %s\n", m->name);
1355	if (!flag)
1356	fprintf (freezer, "swap_time %d\n", m->swap_time);
1357	if (m->reset_timeout)
1358	fprintf (freezer, "reset_timeout %d\n", m->reset_timeout);
1359	if (m->fixed_resettime)
1360	fprintf (freezer, "fixed_resettime %d\n", m->fixed_resettime);
1361	/* we unfortunately have no idea if this is a value the creator set
1362	* or a difficulty value we generated when the map was first loaded
1363	*/
1364	if (m->difficulty)
1365	fprintf (freezer, "difficulty %d\n", m->difficulty);
1366	if (m->region)
1367	fprintf (freezer, "region %s\n", m->region->name);
1368	if (m->shopitems)
1369	{
1370	print_shop_string (m, shop);
1371	fprintf (freezer, "shopitems %s\n", shop);
1372	}
1373	if (m->shopgreed)
1374	fprintf (freezer, "shopgreed %f\n", m->shopgreed);
1375	if (m->shopmin)
1376	fprintf (freezer, "shopmin %llu\n", m->shopmin);
1377	if (m->shopmax)
1378	fprintf (freezer, "shopmax %llu\n", m->shopmax);
1379	if (m->shoprace)
1380	fprintf (freezer, "shoprace %s\n", m->shoprace);
1381	if (m->darkness)
1382	fprintf (freezer, "darkness %d\n", m->darkness);
1383	if (m->width)
1384	fprintf (freezer, "width %d\n", m->width);
1385	if (m->height)
1386	fprintf (freezer, "height %d\n", m->height);
1387	if (m->enter_x)
1388	fprintf (freezer, "enter_x %d\n", m->enter_x);
1389	if (m->enter_y)
1390	fprintf (freezer, "enter_y %d\n", m->enter_y);
1391	if (m->msg)
1392	fprintf (freezer, "msg\n%sendmsg\n", m->msg);
1393	if (m->maplore)
1394	fprintf (freezer, "maplore\n%sendmaplore\n", m->maplore);
1395	if (m->unique)
1396	fprintf (freezer, "unique %d\n", m->unique);
1397	if (m->templatemap)
1398	fprintf (freezer, "template %d\n", m->templatemap);
1399	if (m->outdoor)
1400	fprintf (freezer, "outdoor %d\n", m->outdoor);
1401	if (m->temp)
1402	fprintf (freezer, "temp %d\n", m->temp);
1403	if (m->pressure)
1404	fprintf (freezer, "pressure %d\n", m->pressure);
1405	if (m->humid)
1406	fprintf (freezer, "humid %d\n", m->humid);
1407	if (m->windspeed)
1408	fprintf (freezer, "windspeed %d\n", m->windspeed);
1409	if (m->winddir)
1410	fprintf (freezer, "winddir %d\n", m->winddir);
1411	if (m->sky)
1412	fprintf (freezer, "sky %d\n", m->sky);
1413	if (m->nosmooth)
1414	fprintf (freezer, "nosmooth %d\n", m->nosmooth);
1415		860
1416	/* Save any tiling information, except on overlays */	861	return freezer.save (path);
1417	if (flag != 2)
1418	for (i = 0; i < 4; i++)
1419	if (m->tile_path[i])
1420	fprintf (freezer, "tile_path_%d %s\n", i + 1, m->tile_path[i]);
1421
1422	freezer.put (m);
1423	fprintf (freezer, "end\n");
1424
1425	/* In the game save unique items in the different file, but
1426	* in the editor save them to the normal map file.
1427	* If unique map, save files in the proper destination (set by
1428	* player)
1429	*/
1430	if ((flag == 0 || flag == 2) && !m->unique && !m->templatemap)
1431	{
1432	object_freezer unique;
1433
1434	if (flag == 2)
1435	save_objects (m, freezer, unique, 2);
1436	else
1437	save_objects (m, freezer, unique, 0);
1438
1439	sprintf (buf, "%s.v00", create_items_path (m->path));
1440
1441	unique.save (buf);
1442	}
1443	else
1444	{ /* save same file when not playing, like in editor */
1445	save_objects (m, freezer, freezer, 0);
1446	}
1447
1448	freezer.save (filename);
1449
1450	return 0;
1451	}	862	}
1452		863
1453	/*	864	/*
1454	* Remove and free all objects in the given map.	865	* Remove and free all objects in the given map.
1455	*/	866	*/
1456	void	867	void
1457	free_all_objects (maptile *m)	868	maptile::clear ()
1458	{	869	{
		870	sfree (regions, size ()), regions = 0;
		871	free (regionmap), regionmap = 0;
		872
1459	if (!m->spaces)	873	if (spaces)
1460	return;
1461
1462	for (int i = 0; i < m->width; i++)
1463	for (int j = 0; j < m->height; j++)
1464	{	874	{
1465	mapspace &ms = m->at (i, j);	875	for (mapspace *ms = spaces + size (); ms-- > spaces; )
1466
1467	while (object *op = ms.bot)	876	while (object *op = ms->bot)
1468	{	877	{
1469	if (op->head)
1470	op = op->head;	878	op = op->head_ ();
1471
1472	op->destroy_inv (false);	879	op->destroy_inv (false);
1473	op->destroy ();	880	op->destroy ();
1474	}	881	}
		882
		883	sfree (spaces, size ()), spaces = 0;
1475	}	884	}
1476	}
1477		885
1478	/*	886	if (buttons)
1479	* Frees everything allocated by the given maptileure.	887	free_objectlinkpt (buttons), buttons = 0;
1480	* don't free tmpname - our caller is left to do that	888	}
1481	*/	889
1482	void	890	void
1483	free_map (maptile *m, int flag)	891	maptile::clear_header ()
1484	{	892	{
1485	if (!m->in_memory) //TODO: makes no sense to me?	893	name = 0;
1486	return;	894	msg = 0;
1487		895	maplore = 0;
1488	m->in_memory = MAP_SAVING;	896	shoprace = 0;
1489
1490	// TODO: use new/delete
1491
1492	if (flag && m->spaces)
1493	free_all_objects (m);
1494
1495	sfree (m->spaces, m->size ()), m->spaces = 0;
1496
1497	free (m->name), m->name = 0;
1498	free (m->msg), m->msg = 0;
1499	free (m->maplore), m->maplore = 0;
1500	free (m->shoprace), m->shoprace = 0;
1501	delete [] m->shopitems, m->shopitems = 0;	897	delete [] shopitems, shopitems = 0;
1502
1503	if (m->buttons)
1504	free_objectlinkpt (m->buttons), m->buttons = 0;
1505		898
1506	for (int i = 0; i < 4; i++)	899	for (int i = 0; i < 4; i++)
1507	free (m->tile_path[i]), m->tile_path[i] = 0;	900	tile_path [i] = 0;
1508
1509	m->in_memory = MAP_SWAPPED;
1510	}	901	}
1511		902
1512	maptile::~maptile ()	903	maptile::~maptile ()
1513	{	904	{
1514	assert (destroyed ());	905	assert (destroyed ());
1515	}	906	}
1516		907
1517	void	908	void
1518	maptile::do_destroy ()	909	maptile::clear_links_to (maptile *m)
1519	{	910	{
1520	attachable::do_destroy ();
1521
1522	unlink ();
1523
1524	free_map (this, 1);
1525	free (tmpname), tmpname = 0;
1526
1527	/* We need to look through all the maps and see if any maps	911	/* We need to look through all the maps and see if any maps
1528	* are pointing at this one for tiling information. Since	912	* are pointing at this one for tiling information. Since
1529	* tiling can be asymetric, we just can not look to see which	913	* tiling can be asymetric, we just can not look to see which
1530	* maps this map tiles with and clears those.	914	* maps this map tiles with and clears those.
1531	*/	915	*/
1532	//TODO: non-euclidean-tiling MUST GO
1533	for_all_maps (m)
1534	for (int i = 0; i < 4; i++)	916	for (int i = 0; i < 4; i++)
1535	if (m->tile_map[i] == this)	917	if (tile_map[i] == m)
1536	m->tile_map[i] = 0;	918	tile_map[i] = 0;
1537	}	919	}
1538		920
1539	//TODO: must go
1540	void	921	void
1541	delete_map (maptile *m)	922	maptile::do_destroy ()
1542	{	923	{
1543	if (m)	924	attachable::do_destroy ();
		925
		926	clear ();
		927	}
		928
		929	/* decay and destroy perishable items in a map */
		930	void
		931	maptile::do_decay_objects ()
		932	{
		933	if (!spaces)
		934	return;
		935
		936	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		937	for (object *above, *op = ms->bot; op; op = above)
		938	{
		939	above = op->above;
		940
		941	bool destroy = 0;
		942
		943	// do not decay anything above unique floor tiles (yet :)
		944	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))
		945	break;
		946
		947	if (QUERY_FLAG (op, FLAG_IS_FLOOR)
		948	|| QUERY_FLAG (op, FLAG_OBJ_ORIGINAL)
		949	|| QUERY_FLAG (op, FLAG_OBJ_SAVE_ON_OVL)
		950	|| QUERY_FLAG (op, FLAG_UNIQUE)
		951	|| QUERY_FLAG (op, FLAG_OVERLAY_FLOOR)
		952	|| QUERY_FLAG (op, FLAG_UNPAID)
		953	|| op->is_alive ())
		954	; // do not decay
		955	else if (op->is_weapon ())
		956	{
		957	op->stats.dam--;
		958	if (op->stats.dam < 0)
		959	destroy = 1;
		960	}
		961	else if (op->is_armor ())
		962	{
		963	op->stats.ac--;
		964	if (op->stats.ac < 0)
		965	destroy = 1;
		966	}
		967	else if (op->type == FOOD)
		968	{
		969	op->stats.food -= rndm (5, 20);
		970	if (op->stats.food < 0)
		971	destroy = 1;
		972	}
		973	else
		974	{
		975	int mat = op->materials;
		976
		977	if (mat & M_PAPER
		978	|| mat & M_LEATHER
		979	|| mat & M_WOOD
		980	|| mat & M_ORGANIC
		981	|| mat & M_CLOTH
		982	|| mat & M_LIQUID
		983	|| (mat & M_IRON && rndm (1, 5) == 1)
		984	|| (mat & M_GLASS && rndm (1, 2) == 1)
		985	|| ((mat & M_STONE || mat & M_ADAMANT) && rndm (1, 10) == 1)
		986	|| ((mat & M_SOFT_METAL || mat & M_BONE) && rndm (1, 3) == 1)
		987	|| (mat & M_ICE && temp > 32))
		988	destroy = 1;
		989	}
		990
		991	/* adjust overall chance below */
		992	if (destroy && rndm (0, 1))
1544	m->destroy ();	993	op->destroy ();
		994	}
1545	}	995	}
1546		996
1547	/*	997	/*
1548	* Makes sure the given map is loaded and swapped in.	998	* Updates every button on the map (by calling update_button() for them).
1549	* name is path name of the map.
1550	* flags meaning:
1551	* 0x1 (MAP_FLUSH): flush the map - always load from the map directory,
1552	* and don't do unique items or the like.
1553	* 0x2 (MAP_PLAYER_UNIQUE) - this is a unique map for each player.
1554	* dont do any more name translation on it.
1555	*	999	*/
1556	* Returns a pointer to the given map.	1000	void
1557	*/	1001	maptile::update_buttons ()
1558	maptile *
1559	ready_map_name (const char *name, int flags)
1560	{	1002	{
1561	if (!name)	1003	for (oblinkpt *obp = buttons; obp; obp = obp->next)
1562	return 0;	1004	for (objectlink *ol = obp->link; ol; ol = ol->next)
1563
1564	/* Have we been at this level before? */
1565	maptile *m = has_been_loaded (name);
1566
1567	/* Map is good to go, so just return it */
1568	if (m && (m->in_memory == MAP_LOADING || m->in_memory == MAP_IN_MEMORY))
1569	return m;
1570
1571	/* unique maps always get loaded from their original location, and never
1572	* a temp location. Likewise, if map_flush is set, or we have never loaded
1573	* this map, load it now. I removed the reset checking from here -
1574	* it seems the probability of a player trying to enter a map that should
1575	* reset but hasn't yet is quite low, and removing that makes this function
1576	* a bit cleaner (and players probably shouldn't rely on exact timing for
1577	* resets in any case - if they really care, they should use the 'maps command.
1578	*/
1579	if ((flags & (MAP_FLUSH | MAP_PLAYER_UNIQUE)) || !m)
1580	{	1005	{
1581	/* first visit or time to reset */	1006	if (!ol->ob)
1582	if (m)
1583	{	1007	{
1584	clean_tmp_map (m); /* Doesn't make much difference */	1008	LOG (llevError, "Internal error in update_button (%s (%dx%d), connected %ld).\n",
1585	delete_map (m);	1009	ol->ob ? (const char *) ol->ob->name : "null", ol->ob ? ol->ob->x : -1, ol->ob ? ol->ob->y : -1, obp->value);
		1010	continue;
1586	}	1011	}
1587		1012
1588	/* create and load a map */	1013	if (ol->ob->type == BUTTON || ol->ob->type == PEDESTAL)
1589	if (flags & MAP_PLAYER_UNIQUE)
1590	LOG (llevDebug, "Trying to load map %s.\n", name);
1591	else
1592	LOG (llevDebug, "Trying to load map %s.\n", create_pathname (name));
1593
1594	if (!(m = load_original_map (name, (flags & MAP_PLAYER_UNIQUE))))
1595	return (NULL);
1596
1597	fix_auto_apply (m); /* Chests which open as default */
1598
1599	/* If a player unique map, no extra unique object file to load.
1600	* if from the editor, likewise.
1601	*/
1602	if (!(flags & (MAP_FLUSH | MAP_PLAYER_UNIQUE)))
1603	load_unique_objects (m);
1604
1605	if (!(flags & (MAP_FLUSH | MAP_PLAYER_UNIQUE | MAP_OVERLAY)))
1606	{	1014	{
1607	m = load_overlay_map (name, m);	1015	update_button (ol->ob);
1608	if (m == NULL)	1016	break;
1609	return NULL;
1610	}	1017	}
1611
1612	if (flags & MAP_PLAYER_UNIQUE)
1613	INVOKE_MAP (SWAPIN, m);
1614
1615	}	1018	}
1616	else
1617	{
1618	/* If in this loop, we found a temporary map, so load it up. */
1619
1620	m = load_temporary_map (m);
1621	if (m == NULL)
1622	return NULL;
1623	load_unique_objects (m);
1624
1625	clean_tmp_map (m);
1626	m->in_memory = MAP_IN_MEMORY;
1627	/* tempnam() on sun systems (probably others) uses malloc
1628	* to allocated space for the string. Free it here.
1629	* In some cases, load_temporary_map above won't find the
1630	* temporary map, and so has reloaded a new map. If that
1631	* is the case, tmpname is now null
1632	*/
1633	if (m->tmpname)
1634	free (m->tmpname);
1635	m->tmpname = NULL;
1636	/* It's going to be saved anew anyway */
1637	}
1638
1639	/* Below here is stuff common to both first time loaded maps and
1640	* temp maps.
1641	*/
1642
1643	decay_objects (m); /* start the decay */
1644	/* In case other objects press some buttons down */
1645	update_buttons (m);
1646	if (m->outdoor)
1647	set_darkness_map (m);
1648	/* run the weather over this map */
1649	weather_effect (name);
1650	return m;
1651	}	1019	}
1652
1653		1020
1654	/*	1021	/*
1655	* This routine is supposed to find out the difficulty of the map.	1022	* This routine is supposed to find out the difficulty of the map.
1656	* difficulty does not have a lot to do with character level,	1023	* difficulty does not have a lot to do with character level,
1657	* but does have a lot to do with treasure on the map.	1024	* but does have a lot to do with treasure on the map.
…		…
1659	* Difficulty can now be set by the map creature. If the value stored	1026	* Difficulty can now be set by the map creature. If the value stored
1660	* in the map is zero, then use this routine. Maps should really	1027	* in the map is zero, then use this routine. Maps should really
1661	* have a difficulty set than using this function - human calculation	1028	* have a difficulty set than using this function - human calculation
1662	* is much better than this functions guesswork.	1029	* is much better than this functions guesswork.
1663	*/	1030	*/
1664
1665	int	1031	int
1666	calculate_difficulty (maptile *m)	1032	maptile::estimate_difficulty () const
1667	{	1033	{
1668	object *op;
1669	archetype *at;
1670	int x, y, i;
1671	long monster_cnt = 0;	1034	long monster_cnt = 0;
1672	double avgexp = 0;	1035	double avgexp = 0;
1673	sint64 total_exp = 0;	1036	sint64 total_exp = 0;
1674		1037
1675	if (m->difficulty)	1038	for (mapspace *ms = spaces + size (); ms-- > spaces; )
1676	{	1039	for (object *op = ms->bot; op; op = op->above)
1677	LOG (llevDebug, "Using stored map difficulty: %d\n", m->difficulty);
1678	return m->difficulty;
1679	}
1680
1681	for (x = 0; x < m->width; x++)
1682	for (y = 0; y < m->height; y++)
1683	for (op = GET_MAP_OB (m, x, y); op != NULL; op = op->above)
1684	{	1040	{
1685	if (QUERY_FLAG (op, FLAG_MONSTER))	1041	if (QUERY_FLAG (op, FLAG_MONSTER))
1686	{	1042	{
1687	total_exp += op->stats.exp;	1043	total_exp += op->stats.exp;
1688	monster_cnt++;	1044	monster_cnt++;
1689	}	1045	}
1690		1046
1691	if (QUERY_FLAG (op, FLAG_GENERATOR))	1047	if (QUERY_FLAG (op, FLAG_GENERATOR))
1692	{	1048	{
1693	total_exp += op->stats.exp;	1049	total_exp += op->stats.exp;
		1050
1694	at = type_to_archetype (GENERATE_TYPE (op));	1051	if (archetype *at = type_to_archetype (GENERATE_TYPE (op)))
1695
1696	if (at != NULL)
1697	total_exp += at->clone.stats.exp * 8;	1052	total_exp += at->stats.exp * 8;
1698		1053
1699	monster_cnt++;	1054	monster_cnt++;
1700	}	1055	}
1701	}	1056	}
1702		1057
1703	avgexp = (double) total_exp / monster_cnt;	1058	avgexp = (double) total_exp / monster_cnt;
1704		1059
1705	for (i = 1; i <= settings.max_level; i++)	1060	for (int i = 1; i <= settings.max_level; i++)
1706	{
1707	if ((level_exp (i, 1) - level_exp (i - 1, 1)) > (100 * avgexp))	1061	if ((level_exp (i, 1) - level_exp (i - 1, 1)) > (100 * avgexp))
1708	{
1709	/* LOG(llevDebug, "Calculated difficulty for map: %s: %d\n", m->name, i); */
1710	return i;	1062	return i;
1711	}
1712	}
1713		1063
1714	return 1;	1064	return 1;
1715	}
1716
1717	void
1718	clean_tmp_map (maptile *m)
1719	{
1720	if (m->tmpname == NULL)
1721	return;
1722	INVOKE_MAP (CLEAN, m);
1723	(void) unlink (m->tmpname);
1724	}
1725
1726	void
1727	free_all_maps (void)
1728	{
1729	int real_maps = 0;
1730
1731	while (first_map)
1732	{
1733	/* I think some of the callers above before it gets here set this to be
1734	* saving, but we still want to free this data
1735	*/
1736	if (first_map->in_memory == MAP_SAVING)
1737	first_map->in_memory = MAP_IN_MEMORY;
1738	delete_map (first_map);
1739	real_maps++;
1740	}
1741
1742	LOG (llevDebug, "free_all_maps: Freed %d maps\n", real_maps);
1743	}	1065	}
1744		1066
1745	/* change_map_light() - used to change map light level (darkness)	1067	/* change_map_light() - used to change map light level (darkness)
1746	* up or down. Returns true if successful. It should now be	1068	* up or down. Returns true if successful. It should now be
1747	* possible to change a value by more than 1.	1069	* possible to change a value by more than 1.
1748	* Move this from los.c to map.c since this is more related	1070	* Move this from los.c to map.c since this is more related
1749	* to maps than los.	1071	* to maps than los.
1750	* postive values make it darker, negative make it brighter	1072	* postive values make it darker, negative make it brighter
1751	*/	1073	*/
1752
1753	int	1074	int
1754	change_map_light (maptile *m, int change)	1075	maptile::change_map_light (int change)
1755	{	1076	{
1756	int new_level = m->darkness + change;	1077	int new_level = darkness + change;
1757		1078
1758	/* Nothing to do */	1079	/* Nothing to do */
1759	if (!change || (new_level <= 0 && m->darkness == 0) || (new_level >= MAX_DARKNESS && m->darkness >= MAX_DARKNESS))	1080	if (!change || (new_level <= 0 && darkness == 0) || (new_level >= MAX_DARKNESS && darkness >= MAX_DARKNESS))
1760	{
1761	return 0;	1081	return 0;
1762	}
1763		1082
1764	/* inform all players on the map */	1083	/* inform all players on the map */
1765	if (change > 0)	1084	if (change > 0)
1766	new_info_map (NDI_BLACK | NDI_UNIQUE, m, "It becomes darker.");	1085	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes darker.");
1767	else	1086	else
1768	new_info_map (NDI_BLACK | NDI_UNIQUE, m, "It becomes brighter.");	1087	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes brighter.");
1769		1088
1770	/* Do extra checking. since m->darkness is a unsigned value,	1089	/* Do extra checking. since darkness is a unsigned value,
1771	* we need to be extra careful about negative values.	1090	* we need to be extra careful about negative values.
1772	* In general, the checks below are only needed if change	1091	* In general, the checks below are only needed if change
1773	* is not +/-1	1092	* is not +/-1
1774	*/	1093	*/
1775	if (new_level < 0)	1094	if (new_level < 0)
1776	m->darkness = 0;	1095	darkness = 0;
1777	else if (new_level >= MAX_DARKNESS)	1096	else if (new_level >= MAX_DARKNESS)
1778	m->darkness = MAX_DARKNESS;	1097	darkness = MAX_DARKNESS;
1779	else	1098	else
1780	m->darkness = new_level;	1099	darkness = new_level;
1781		1100
1782	/* All clients need to get re-updated for the change */	1101	/* All clients need to get re-updated for the change */
1783	update_all_map_los (m);	1102	update_all_map_los (this);
1784	return 1;	1103	return 1;
1785	}	1104	}
1786		1105
1787	/*	1106	/*
1788	* This function updates various attributes about a specific space	1107	* This function updates various attributes about a specific space
…		…
1792	*/	1111	*/
1793	void	1112	void
1794	mapspace::update_ ()	1113	mapspace::update_ ()
1795	{	1114	{
1796	object *tmp, *last = 0;	1115	object *tmp, *last = 0;
1797	uint8 flags = 0, light = 0, anywhere = 0;	1116	uint8 flags = P_UPTODATE, light = 0, anywhere = 0;
1798	New_Face *top, *floor, *middle;
1799	object *top_obj, *floor_obj, *middle_obj;
1800	MoveType move_block = 0, move_slow = 0, move_on = 0, move_off = 0, move_allow = 0;	1117	MoveType move_block = 0, move_slow = 0, move_on = 0, move_off = 0, move_allow = 0;
1801		1118
1802	middle = blank_face;	1119	//object *middle = 0;
1803	top = blank_face;	1120	//object *top = 0;
1804	floor = blank_face;	1121	//object *floor = 0;
1805		1122	// this seems to generate better code than using locals, above
1806	middle_obj = 0;	1123	object *&top = faces_obj[0] = 0;
1807	top_obj = 0;	1124	object *&middle = faces_obj[1] = 0;
1808	floor_obj = 0;	1125	object *&floor = faces_obj[2] = 0;
1809		1126
1810	for (tmp = bot; tmp; last = tmp, tmp = tmp->above)	1127	for (tmp = bot; tmp; last = tmp, tmp = tmp->above)
1811	{	1128	{
1812	/* This could be made additive I guess (two lights better than	1129	/* This could be made additive I guess (two lights better than
1813	* one). But if so, it shouldn't be a simple additive - 2	1130	* one). But if so, it shouldn't be a simple additive - 2
…		…
1826	* Always put the player down for drawing.	1143	* Always put the player down for drawing.
1827	*/	1144	*/
1828	if (!tmp->invisible)	1145	if (!tmp->invisible)
1829	{	1146	{
1830	if ((tmp->type == PLAYER || QUERY_FLAG (tmp, FLAG_MONSTER)))	1147	if ((tmp->type == PLAYER || QUERY_FLAG (tmp, FLAG_MONSTER)))
1831	{
1832	top = tmp->face;
1833	top_obj = tmp;	1148	top = tmp;
1834	}
1835	else if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))	1149	else if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))
1836	{	1150	{
1837	/* If we got a floor, that means middle and top were below it,	1151	/* If we got a floor, that means middle and top were below it,
1838	* so should not be visible, so we clear them.	1152	* so should not be visible, so we clear them.
1839	*/	1153	*/
1840	middle = blank_face;	1154	middle = 0;
1841	top = blank_face;	1155	top = 0;
1842	floor = tmp->face;
1843	floor_obj = tmp;	1156	floor = tmp;
1844	}	1157	}
1845	/* Flag anywhere have high priority */	1158	/* Flag anywhere have high priority */
1846	else if (QUERY_FLAG (tmp, FLAG_SEE_ANYWHERE))	1159	else if (QUERY_FLAG (tmp, FLAG_SEE_ANYWHERE))
1847	{	1160	{
1848	middle = tmp->face;
1849
1850	middle_obj = tmp;	1161	middle = tmp;
1851	anywhere = 1;	1162	anywhere = 1;
1852	}	1163	}
1853	/* Find the highest visible face around. If equal	1164	/* Find the highest visible face around. If equal
1854	* visibilities, we still want the one nearer to the	1165	* visibilities, we still want the one nearer to the
1855	* top	1166	* top
1856	*/	1167	*/
1857	else if (middle == blank_face || (tmp->face->visibility > middle->visibility && !anywhere))	1168	else if (!middle || (::faces [tmp->face].visibility > ::faces [middle->face].visibility && !anywhere))
1858	{
1859	middle = tmp->face;
1860	middle_obj = tmp;	1169	middle = tmp;
1861	}
1862	}	1170	}
1863		1171
1864	if (tmp == tmp->above)	1172	if (tmp == tmp->above)
1865	{	1173	{
1866	LOG (llevError, "Error in structure of map\n");	1174	LOG (llevError, "Error in structure of map\n");
…		…
1901	* middle face. This should not happen, as we already have the	1209	* middle face. This should not happen, as we already have the
1902	* else statement above so middle should not get set. OTOH, it	1210	* else statement above so middle should not get set. OTOH, it
1903	* may be possible for the faces to match but be different objects.	1211	* may be possible for the faces to match but be different objects.
1904	*/	1212	*/
1905	if (top == middle)	1213	if (top == middle)
1906	middle = blank_face;	1214	middle = 0;
1907		1215
1908	/* There are three posibilities at this point:	1216	/* There are three posibilities at this point:
1909	* 1) top face is set, need middle to be set.	1217	* 1) top face is set, need middle to be set.
1910	* 2) middle is set, need to set top.	1218	* 2) middle is set, need to set top.
1911	* 3) neither middle or top is set - need to set both.	1219	* 3) neither middle or top is set - need to set both.
…		…
1916	/* Once we get to a floor, stop, since we already have a floor object */	1224	/* Once we get to a floor, stop, since we already have a floor object */
1917	if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))	1225	if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))
1918	break;	1226	break;
1919		1227
1920	/* If two top faces are already set, quit processing */	1228	/* If two top faces are already set, quit processing */
1921	if ((top != blank_face) && (middle != blank_face))	1229	if (top && middle)
1922	break;	1230	break;
1923		1231
1924	/* Only show visible faces, unless its the editor - show all */	1232	/* Only show visible faces */
1925	if (!tmp->invisible || editor)	1233	if (!tmp->invisible)
1926	{	1234	{
1927	/* Fill in top if needed */	1235	/* Fill in top if needed */
1928	if (top == blank_face)	1236	if (!top)
1929	{	1237	{
1930	top = tmp->face;
1931	top_obj = tmp;	1238	top = tmp;
1932	if (top == middle)	1239	if (top == middle)
1933	middle = blank_face;	1240	middle = 0;
1934	}	1241	}
1935	else	1242	else
1936	{	1243	{
1937	/* top is already set - we should only get here if	1244	/* top is already set - we should only get here if
1938	* middle is not set	1245	* middle is not set
1939	*	1246	*
1940	* Set the middle face and break out, since there is nothing	1247	* Set the middle face and break out, since there is nothing
1941	* more to fill in. We don't check visiblity here, since	1248	* more to fill in. We don't check visiblity here, since
1942	*	1249	*
1943	*/	1250	*/
1944	if (tmp->face != top)	1251	if (tmp != top)
1945	{	1252	{
1946	middle = tmp->face;
1947	middle_obj = tmp;	1253	middle = tmp;
1948	break;	1254	break;
1949	}	1255	}
1950	}	1256	}
1951	}	1257	}
1952	}	1258	}
1953		1259
1954	if (middle == floor)	1260	if (middle == floor)
1955	middle = blank_face;	1261	middle = 0;
1956		1262
1957	if (top == middle)	1263	if (top == middle)
1958	middle = blank_face;	1264	middle = 0;
1959		1265
1960	faces [0] = top; faces_obj [0] = top != blank_face ? top_obj : 0;	1266	#if 0
1961	faces [1] = middle; faces_obj [1] = middle != blank_face ? middle_obj : 0;	1267	faces_obj [0] = top;
1962	faces [2] = floor; faces_obj [2] = floor != blank_face ? floor_obj : 0;	1268	faces_obj [1] = middle;
		1269	faces_obj [2] = floor;
		1270	#endif
1963	}	1271	}
1964		1272
1965	void	1273	uint64
1966	set_map_reset_time (maptile *map)	1274	mapspace::volume () const
1967	{	1275	{
1968	int timeout = map->reset_timeout;	1276	uint64 vol = 0;
1969		1277
1970	if (timeout <= 0)	1278	for (object *op = top; op && !op->flag [FLAG_NO_PICK]; op = op->below)
1971	timeout = MAP_DEFAULTRESET;	1279	vol += op->volume ();
1972	if (timeout >= MAP_MAXRESET)
1973	timeout = MAP_MAXRESET;
1974		1280
1975	map->reset_time = time (0) + timeout;	1281	return vol;
1976	}	1282	}
1977		1283
1978	/* this updates the orig_map->tile_map[tile_num] value after loading	1284	/* this updates the orig_map->tile_map[tile_num] value after finding
1979	* the map. It also takes care of linking back the freshly loaded	1285	* the map. It also takes care of linking back the freshly found
1980	* maps tile_map values if it tiles back to this one. It returns	1286	* maps tile_map values if it tiles back to this one. It returns
1981	* the value of orig_map->tile_map[tile_num]. It really only does this	1287	* the value of orig_map->tile_map[tile_num].
1982	* so that it is easier for calling functions to verify success.
1983	*/	1288	*/
1984
1985	static maptile *	1289	static inline maptile *
1986	load_and_link_tiled_map (maptile *orig_map, int tile_num)	1290	find_and_link (maptile *orig_map, int tile_num)
1987	{	1291	{
		1292	maptile *mp = orig_map->tile_map [tile_num];
		1293
		1294	if (!mp)
		1295	{
		1296	mp = orig_map->find_sync (orig_map->tile_path [tile_num], orig_map);
		1297
		1298	if (!mp)
		1299	{
		1300	// emergency mode, manufacture a dummy map, this creates a memleak, but thats fine
		1301	LOG (llevError, "FATAL: cannot load tiled map %s from %s, leaking memory and worse!\n",
		1302	&orig_map->tile_path[tile_num], &orig_map->path);
		1303	mp = new maptile (1, 1);
		1304	mp->alloc ();
		1305	mp->in_memory = MAP_IN_MEMORY;
		1306	}
		1307	}
		1308
1988	int dest_tile = (tile_num + 2) % 4;	1309	int dest_tile = (tile_num + 2) % 4;
1989	char *path = path_combine_and_normalize (orig_map->path, orig_map->tile_path[tile_num]);
1990		1310
1991	orig_map->tile_map[tile_num] = ready_map_name (path, 0);	1311	orig_map->tile_map [tile_num] = mp;
1992		1312
1993	/* need to do a strcmp here as the orig_map->path is not a shared string */	1313	// optimisation: back-link map to origin map if euclidean
1994	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))	1314	//TODO: non-euclidean maps MUST GO
		1315	if (orig_map->tile_map[tile_num]->tile_path[dest_tile] == orig_map->path)
1995	orig_map->tile_map[tile_num]->tile_map[dest_tile] = orig_map;	1316	orig_map->tile_map[tile_num]->tile_map[dest_tile] = orig_map;
1996		1317
1997	return orig_map->tile_map[tile_num];	1318	return mp;
		1319	}
		1320
		1321	static inline void
		1322	load_and_link (maptile *orig_map, int tile_num)
		1323	{
		1324	find_and_link (orig_map, tile_num)->load_sync ();
1998	}	1325	}
1999		1326
2000	/* this returns TRUE if the coordinates (x,y) are out of	1327	/* this returns TRUE if the coordinates (x,y) are out of
2001	* map m. This function also takes into account any	1328	* map m. This function also takes into account any
2002	* tiling considerations, loading adjacant maps as needed.	1329	* tiling considerations, loading adjacant maps as needed.
2003	* This is the function should always be used when it	1330	* This is the function should always be used when it
2004	* necessary to check for valid coordinates.	1331	* necessary to check for valid coordinates.
2005	* This function will recursively call itself for the	1332	* This function will recursively call itself for the
2006	* tiled maps.	1333	* tiled maps.
2007	*
2008	*
2009	*/	1334	*/
2010	int	1335	int
2011	out_of_map (maptile *m, int x, int y)	1336	out_of_map (maptile *m, int x, int y)
2012	{	1337	{
2013	/* If we get passed a null map, this is obviously the	1338	/* If we get passed a null map, this is obviously the
…		…
2021	{	1346	{
2022	if (!m->tile_path[3])	1347	if (!m->tile_path[3])
2023	return 1;	1348	return 1;
2024		1349
2025	if (!m->tile_map[3] || m->tile_map[3]->in_memory != MAP_IN_MEMORY)	1350	if (!m->tile_map[3] || m->tile_map[3]->in_memory != MAP_IN_MEMORY)
2026	load_and_link_tiled_map (m, 3);	1351	find_and_link (m, 3);
2027		1352
2028	return (out_of_map (m->tile_map[3], x + m->tile_map[3]->width, y));	1353	return out_of_map (m->tile_map[3], x + m->tile_map[3]->width, y);
2029	}	1354	}
2030		1355
2031	if (x >= m->width)	1356	if (x >= m->width)
2032	{	1357	{
2033	if (!m->tile_path[1])	1358	if (!m->tile_path[1])
2034	return 1;	1359	return 1;
2035		1360
2036	if (!m->tile_map[1] || m->tile_map[1]->in_memory != MAP_IN_MEMORY)	1361	if (!m->tile_map[1] || m->tile_map[1]->in_memory != MAP_IN_MEMORY)
2037	load_and_link_tiled_map (m, 1);	1362	find_and_link (m, 1);
2038		1363
2039	return (out_of_map (m->tile_map[1], x - m->width, y));	1364	return out_of_map (m->tile_map[1], x - m->width, y);
2040	}	1365	}
2041		1366
2042	if (y < 0)	1367	if (y < 0)
2043	{	1368	{
2044	if (!m->tile_path[0])	1369	if (!m->tile_path[0])
2045	return 1;	1370	return 1;
2046		1371
2047	if (!m->tile_map[0] || m->tile_map[0]->in_memory != MAP_IN_MEMORY)	1372	if (!m->tile_map[0] || m->tile_map[0]->in_memory != MAP_IN_MEMORY)
2048	load_and_link_tiled_map (m, 0);	1373	find_and_link (m, 0);
2049		1374
2050	return (out_of_map (m->tile_map[0], x, y + m->tile_map[0]->height));	1375	return out_of_map (m->tile_map[0], x, y + m->tile_map[0]->height);
2051	}	1376	}
2052		1377
2053	if (y >= m->height)	1378	if (y >= m->height)
2054	{	1379	{
2055	if (!m->tile_path[2])	1380	if (!m->tile_path[2])
2056	return 1;	1381	return 1;
2057		1382
2058	if (!m->tile_map[2] || m->tile_map[2]->in_memory != MAP_IN_MEMORY)	1383	if (!m->tile_map[2] || m->tile_map[2]->in_memory != MAP_IN_MEMORY)
2059	load_and_link_tiled_map (m, 2);	1384	find_and_link (m, 2);
2060		1385
2061	return (out_of_map (m->tile_map[2], x, y - m->height));	1386	return out_of_map (m->tile_map[2], x, y - m->height);
2062	}	1387	}
2063		1388
2064	/* Simple case - coordinates are within this local	1389	/* Simple case - coordinates are within this local
2065	* map.	1390	* map.
2066	*/	1391	*/
…		…
2069		1394
2070	/* This is basically the same as out_of_map above, but	1395	/* This is basically the same as out_of_map above, but
2071	* instead we return NULL if no map is valid (coordinates	1396	* instead we return NULL if no map is valid (coordinates
2072	* out of bounds and no tiled map), otherwise it returns	1397	* out of bounds and no tiled map), otherwise it returns
2073	* the map as that the coordinates are really on, and	1398	* the map as that the coordinates are really on, and
2074	* updates x and y to be the localized coordinates.	1399	* updates x and y to be the localised coordinates.
2075	* Using this is more efficient of calling out_of_map	1400	* Using this is more efficient of calling out_of_map
2076	* and then figuring out what the real map is	1401	* and then figuring out what the real map is
2077	*/	1402	*/
2078	maptile *	1403	maptile *
2079	get_map_from_coord (maptile *m, sint16 * x, sint16 * y)	1404	maptile::xy_find (sint16 &x, sint16 &y)
2080	{	1405	{
2081
2082	if (*x < 0)	1406	if (x < 0)
2083	{	1407	{
2084	if (!m->tile_path[3])	1408	if (!tile_path[3])
2085	return 0;	1409	return 0;
2086	if (!m->tile_map[3] || m->tile_map[3]->in_memory != MAP_IN_MEMORY)
2087	load_and_link_tiled_map (m, 3);
2088		1410
		1411	find_and_link (this, 3);
2089	*x += m->tile_map[3]->width;	1412	x += tile_map[3]->width;
2090	return (get_map_from_coord (m->tile_map[3], x, y));	1413	return tile_map[3]->xy_find (x, y);
2091	}	1414	}
2092		1415
2093	if (*x >= m->width)	1416	if (x >= width)
2094	{	1417	{
2095	if (!m->tile_path[1])	1418	if (!tile_path[1])
2096	return 0;	1419	return 0;
2097		1420
2098	if (!m->tile_map[1] || m->tile_map[1]->in_memory != MAP_IN_MEMORY)	1421	find_and_link (this, 1);
2099	load_and_link_tiled_map (m, 1);
2100
2101	*x -= m->width;	1422	x -= width;
2102	return (get_map_from_coord (m->tile_map[1], x, y));	1423	return tile_map[1]->xy_find (x, y);
2103	}	1424	}
2104		1425
2105	if (*y < 0)	1426	if (y < 0)
2106	{	1427	{
2107	if (!m->tile_path[0])	1428	if (!tile_path[0])
2108	return 0;	1429	return 0;
2109		1430
2110	if (!m->tile_map[0] || m->tile_map[0]->in_memory != MAP_IN_MEMORY)	1431	find_and_link (this, 0);
2111	load_and_link_tiled_map (m, 0);
2112
2113	*y += m->tile_map[0]->height;	1432	y += tile_map[0]->height;
2114	return (get_map_from_coord (m->tile_map[0], x, y));	1433	return tile_map[0]->xy_find (x, y);
2115	}	1434	}
2116		1435
2117	if (*y >= m->height)	1436	if (y >= height)
2118	{	1437	{
2119	if (!m->tile_path[2])	1438	if (!tile_path[2])
2120	return 0;	1439	return 0;
2121		1440
2122	if (!m->tile_map[2] || m->tile_map[2]->in_memory != MAP_IN_MEMORY)	1441	find_and_link (this, 2);
2123	load_and_link_tiled_map (m, 2);
2124
2125	*y -= m->height;	1442	y -= height;
2126	return (get_map_from_coord (m->tile_map[2], x, y));	1443	return tile_map[2]->xy_find (x, y);
2127	}	1444	}
2128		1445
2129	/* Simple case - coordinates are within this local	1446	/* Simple case - coordinates are within this local
2130	* map.	1447	* map.
2131	*/	1448	*/
2132
2133	return m;	1449	return this;
2134	}	1450	}
2135		1451
2136	/**	1452	/**
2137	* Return whether map2 is adjacent to map1. If so, store the distance from	1453	* Return whether map2 is adjacent to map1. If so, store the distance from
2138	* map1 to map2 in dx/dy.	1454	* map1 to map2 in dx/dy.
2139	*/	1455	*/
2140	static int	1456	int
2141	adjacent_map (const maptile *map1, const maptile *map2, int *dx, int *dy)	1457	adjacent_map (const maptile *map1, const maptile *map2, int *dx, int *dy)
2142	{	1458	{
2143	if (!map1 || !map2)	1459	if (!map1 || !map2)
2144	return 0;	1460	return 0;
2145		1461
		1462	//TODO: this doesn't actually check corretcly when intermediate maps are not loaded
		1463	//fix: compare paths instead (this is likely faster, too!)
2146	if (map1 == map2)	1464	if (map1 == map2)
2147	{	1465	{
2148	*dx = 0;	1466	*dx = 0;
2149	*dy = 0;	1467	*dy = 0;
2150
2151	}	1468	}
2152	else if (map1->tile_map[0] == map2)	1469	else if (map1->tile_map[0] == map2)
2153	{ /* up */	1470	{ /* up */
2154	*dx = 0;	1471	*dx = 0;
2155	*dy = -map2->height;	1472	*dy = -map2->height;
…		…
2166	}	1483	}
2167	else if (map1->tile_map[3] == map2)	1484	else if (map1->tile_map[3] == map2)
2168	{ /* left */	1485	{ /* left */
2169	*dx = -map2->width;	1486	*dx = -map2->width;
2170	*dy = 0;	1487	*dy = 0;
2171
2172	}	1488	}
2173	else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[1] == map2)	1489	else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[1] == map2)
2174	{ /* up right */	1490	{ /* up right */
2175	*dx = map1->tile_map[0]->width;	1491	*dx = map1->tile_map[0]->width;
2176	*dy = -map1->tile_map[0]->height;	1492	*dy = -map1->tile_map[0]->height;
…		…
2207	}	1523	}
2208	else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[2] == map2)	1524	else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[2] == map2)
2209	{ /* left down */	1525	{ /* left down */
2210	*dx = -map1->tile_map[3]->width;	1526	*dx = -map1->tile_map[3]->width;
2211	*dy = map1->tile_map[3]->height;	1527	*dy = map1->tile_map[3]->height;
2212
2213	}	1528	}
2214	else	1529	else
2215	{ /* not "adjacent" enough */
2216	return 0;	1530	return 0;
2217	}
2218		1531
2219	return 1;	1532	return 1;
		1533	}
		1534
		1535	maptile *
		1536	maptile::xy_load (sint16 &x, sint16 &y)
		1537	{
		1538	maptile *map = xy_find (x, y);
		1539
		1540	if (map)
		1541	map->load_sync ();
		1542
		1543	return map;
		1544	}
		1545
		1546	maptile *
		1547	get_map_from_coord (maptile *m, sint16 *x, sint16 *y)
		1548	{
		1549	return m->xy_load (*x, *y);
2220	}	1550	}
2221		1551
2222	/* From map.c	1552	/* From map.c
2223	* This is used by get_player to determine where the other	1553	* This is used by get_player to determine where the other
2224	* creature is. get_rangevector takes into account map tiling,	1554	* creature is. get_rangevector takes into account map tiling,
2225	* so you just can not look the the map coordinates and get the	1555	* so you just can not look the the map coordinates and get the
2226	* righte value. distance_x/y are distance away, which	1556	* righte value. distance_x/y are distance away, which
2227	* can be negativbe. direction is the crossfire direction scheme	1557	* can be negative. direction is the crossfire direction scheme
2228	* that the creature should head. part is the part of the	1558	* that the creature should head. part is the part of the
2229	* monster that is closest.	1559	* monster that is closest.
2230	*	1560	*
2231	* get_rangevector looks at op1 and op2, and fills in the	1561	* get_rangevector looks at op1 and op2, and fills in the
2232	* structure for op1 to get to op2.	1562	* structure for op1 to get to op2.
…		…
2237	* be unexpected	1567	* be unexpected
2238	*	1568	*
2239	* currently, the only flag supported (0x1) is don't translate for	1569	* currently, the only flag supported (0x1) is don't translate for
2240	* closest body part of 'op1'	1570	* closest body part of 'op1'
2241	*/	1571	*/
2242
2243	void	1572	void
2244	get_rangevector (object *op1, object *op2, rv_vector * retval, int flags)	1573	get_rangevector (object *op1, object *op2, rv_vector * retval, int flags)
2245	{	1574	{
2246	if (!adjacent_map (op1->map, op2->map, &retval->distance_x, &retval->distance_y))	1575	if (!adjacent_map (op1->map, op2->map, &retval->distance_x, &retval->distance_y))
2247	{	1576	{
2248	/* be conservative and fill in _some_ data */	1577	/* be conservative and fill in _some_ data */
2249	retval->distance = 100000;	1578	retval->distance = 10000;
2250	retval->distance_x = 32767;	1579	retval->distance_x = 10000;
2251	retval->distance_y = 32767;	1580	retval->distance_y = 10000;
2252	retval->direction = 0;	1581	retval->direction = 0;
2253	retval->part = 0;	1582	retval->part = 0;
2254	}	1583	}
2255	else	1584	else
2256	{	1585	{
…		…
2261		1590
2262	best = op1;	1591	best = op1;
2263	/* If this is multipart, find the closest part now */	1592	/* If this is multipart, find the closest part now */
2264	if (!(flags & 0x1) && op1->more)	1593	if (!(flags & 0x1) && op1->more)
2265	{	1594	{
2266	object *tmp;
2267	int best_distance = retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y, tmpi;	1595	int best_distance = retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y, tmpi;
2268		1596
2269	/* we just take the offset of the piece to head to figure	1597	/* we just take the offset of the piece to head to figure
2270	* distance instead of doing all that work above again	1598	* distance instead of doing all that work above again
2271	* since the distance fields we set above are positive in the	1599	* since the distance fields we set above are positive in the
2272	* same axis as is used for multipart objects, the simply arithmetic	1600	* same axis as is used for multipart objects, the simply arithmetic
2273	* below works.	1601	* below works.
2274	*/	1602	*/
2275	for (tmp = op1->more; tmp != NULL; tmp = tmp->more)	1603	for (object *tmp = op1->more; tmp; tmp = tmp->more)
2276	{	1604	{
2277	tmpi = (op1->x - tmp->x + retval->distance_x) * (op1->x - tmp->x + retval->distance_x) +	1605	tmpi = (op1->x - tmp->x + retval->distance_x) * (op1->x - tmp->x + retval->distance_x) +
2278	(op1->y - tmp->y + retval->distance_y) * (op1->y - tmp->y + retval->distance_y);	1606	(op1->y - tmp->y + retval->distance_y) * (op1->y - tmp->y + retval->distance_y);
2279	if (tmpi < best_distance)	1607	if (tmpi < best_distance)
2280	{	1608	{
2281	best_distance = tmpi;	1609	best_distance = tmpi;
2282	best = tmp;	1610	best = tmp;
2283	}	1611	}
2284	}	1612	}
		1613
2285	if (best != op1)	1614	if (best != op1)
2286	{	1615	{
2287	retval->distance_x += op1->x - best->x;	1616	retval->distance_x += op1->x - best->x;
2288	retval->distance_y += op1->y - best->y;	1617	retval->distance_y += op1->y - best->y;
2289	}	1618	}
2290	}	1619	}
		1620
2291	retval->part = best;	1621	retval->part = best;
2292	retval->distance = isqrt (retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y);	1622	retval->distance = upos_max (abs (retval->distance_x), abs (retval->distance_y));
2293	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);	1623	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);
2294	}	1624	}
2295	}	1625	}
2296		1626
2297	/* this is basically the same as get_rangevector above, but instead of	1627	/* this is basically the same as get_rangevector above, but instead of
…		…
2302	* flags has no meaning for this function at this time - I kept it in to	1632	* flags has no meaning for this function at this time - I kept it in to
2303	* be more consistant with the above function and also in case they are needed	1633	* be more consistant with the above function and also in case they are needed
2304	* for something in the future. Also, since no object is pasted, the best	1634	* for something in the future. Also, since no object is pasted, the best
2305	* field of the rv_vector is set to NULL.	1635	* field of the rv_vector is set to NULL.
2306	*/	1636	*/
2307
2308	void	1637	void
2309	get_rangevector_from_mapcoord (const maptile *m, int x, int y, const object *op2, rv_vector * retval, int flags)	1638	get_rangevector_from_mapcoord (const maptile *m, int x, int y, const object *op2, rv_vector *retval, int flags)
2310	{	1639	{
2311	if (!adjacent_map (m, op2->map, &retval->distance_x, &retval->distance_y))	1640	if (!adjacent_map (m, op2->map, &retval->distance_x, &retval->distance_y))
2312	{	1641	{
2313	/* be conservative and fill in _some_ data */	1642	/* be conservative and fill in _some_ data */
2314	retval->distance = 100000;	1643	retval->distance = 100000;
…		…
2321	{	1650	{
2322	retval->distance_x += op2->x - x;	1651	retval->distance_x += op2->x - x;
2323	retval->distance_y += op2->y - y;	1652	retval->distance_y += op2->y - y;
2324		1653
2325	retval->part = NULL;	1654	retval->part = NULL;
2326	retval->distance = isqrt (retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y);	1655	retval->distance = idistance (retval->distance_x, retval->distance_y);
2327	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);	1656	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);
2328	}	1657	}
2329	}	1658	}
2330		1659
2331	/* Returns true of op1 and op2 are effectively on the same map	1660	/* Returns true of op1 and op2 are effectively on the same map
2332	* (as related to map tiling). Note that this looks for a path from	1661	* (as related to map tiling). Note that this looks for a path from
2333	* op1 to op2, so if the tiled maps are assymetric and op2 has a path	1662	* op1 to op2, so if the tiled maps are asymetric and op2 has a path
2334	* to op1, this will still return false.	1663	* to op1, this will still return false.
2335	* Note we only look one map out to keep the processing simple	1664	* Note we only look one map out to keep the processing simple
2336	* and efficient. This could probably be a macro.	1665	* and efficient. This could probably be a macro.
2337	* MSW 2001-08-05	1666	* MSW 2001-08-05
2338	*/	1667	*/
…		…
2351	op->remove ();	1680	op->remove ();
2352		1681
2353	return insert_ob_in_map_at (op, this, originator, flags, x, y);	1682	return insert_ob_in_map_at (op, this, originator, flags, x, y);
2354	}	1683	}
2355		1684
		1685	region *
		1686	maptile::region (int x, int y) const
		1687	{
		1688	if (regions
		1689	&& regionmap
		1690	&& !OUT_OF_REAL_MAP (this, x, y))
		1691	if (struct region *reg = regionmap [regions [y * width + x]])
		1692	return reg;
		1693
		1694	if (default_region)
		1695	return default_region;
		1696
		1697	return ::region::default_region ();
		1698	}
		1699
		1700	/* picks a random object from a style map.
		1701	* Redone by MSW so it should be faster and not use static
		1702	* variables to generate tables.
		1703	*/
		1704	object *
		1705	maptile::pick_random_object () const
		1706	{
		1707	/* while returning a null object will result in a crash, that
		1708	* is actually preferable to an infinite loop. That is because
		1709	* most servers will automatically restart in case of crash.
		1710	* Change the logic on getting the random space - shouldn't make
		1711	* any difference, but this seems clearer to me.
		1712	*/
		1713	for (int i = 1000; --i;)
		1714	{
		1715	object *pick = at (rndm (width), rndm (height)).bot;
		1716
		1717	// do not prefer big monsters just because they are big.
		1718	if (pick && pick->head_ () == pick)
		1719	return pick->head_ ();
		1720	}
		1721
		1722	// instead of crashing in the unlikely(?) case, try to return *something*
		1723	return get_archetype ("blocked");
		1724	}
		1725

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