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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 1.125 by root, Thu Sep 6 06:53:05 2007 UTC

1	/*	1	/*
2	CrossFire, A Multiplayer game for X-windows	2	* This file is part of Crossfire TRT, the Roguelike Realtime MORPG.
3		3	*
		4	* Copyright (©) 2005,2006,2007 Marc Alexander Lehmann / Robin Redeker / the Crossfire TRT team
4	Copyright (C) 2001-2003 Mark Wedel & Crossfire Development Team	5	* Copyright (©) 2001-2003,2007 Mark Wedel & Crossfire Development Team
5	Copyright (C) 1992 Frank Tore Johansen	6	* Copyright (©) 1992,2007 Frank Tore Johansen
6		7	*
7	This program is free software; you can redistribute it and/or modify	8	* Crossfire TRT is free software: you can redistribute it and/or modify
8	it under the terms of the GNU General Public License as published by	9	* it under the terms of the GNU General Public License as published by
9	the Free Software Foundation; either version 2 of the License, or	10	* the Free Software Foundation, either version 3 of the License, or
10	(at your option) any later version.	11	* (at your option) any later version.
11		12	*
12	This program is distributed in the hope that it will be useful,	13	* This program is distributed in the hope that it will be useful,
13	but WITHOUT ANY WARRANTY; without even the implied warranty of	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15	GNU General Public License for more details.	16	* GNU General Public License for more details.
16		17	*
17	You should have received a copy of the GNU General Public License	18	* You should have received a copy of the GNU General Public License
18	along with this program; if not, write to the Free Software	19	* along with this program. If not, see <http://www.gnu.org/licenses/>.
19	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	20	*
20
21	The authors can be reached via e-mail at <crossfire@schmorp.de>	21	* The authors can be reached via e-mail to <crossfire@schmorp.de>
22	*/	22	*/
23		23
24	#include <global.h>
25	#include <funcpoint.h>
26
27	#include <loader.h>
28	#include <unistd.h>	24	#include <unistd.h>
29		25
		26	#include "global.h"
		27	#include "funcpoint.h"
		28
		29	#include "loader.h"
		30
30	#include "path.h"	31	#include "path.h"
31
32	/*
33	* Returns the maptile which has a name matching the given argument.
34	* return NULL if no match is found.
35	*/
36	maptile *
37	has_been_loaded (const char *name)
38	{
39	if (!name || !*name)
40	return 0;
41
42	for_all_maps (map)
43	if (!strcmp (name, map->path))
44	return map;
45
46	return 0;
47	}
48
49	/*
50	* This makes a path absolute outside the world of Crossfire.
51	* In other words, it prepends LIBDIR/MAPDIR/ to the given path
52	* and returns the pointer to a static array containing the result.
53	* it really should be called create_mapname
54	*/
55
56	const char *
57	create_pathname (const char *name)
58	{
59	static char buf[MAX_BUF];
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);
68	return (buf);
69	}
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
136	/*
137	* This function checks if a file with the given path exists.
138	* -1 is returned if it fails, otherwise the mode of the file
139	* is returned.
140	* It tries out all the compression suffixes listed in the uncomp[] array.
141	*
142	* If prepend_dir is set, then we call create_pathname (which prepends
143	* libdir & mapdir). Otherwise, we assume the name given is fully
144	* complete.
145	* Only the editor actually cares about the writablity of this -
146	* 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
148	* replaced by an access instead (similar to the windows one, but
149	* that seems to be missing the prepend_dir processing
150	*/
151
152	int
153	check_path (const char *name, int prepend_dir)
154	{
155	char buf[MAX_BUF];
156
157	char *endbuf;
158	struct stat statbuf;
159	int mode = 0;
160
161	if (prepend_dir)
162	strcpy (buf, create_pathname (name));
163	else
164	strcpy (buf, name);
165
166	/* old method (strchr(buf, '\0')) seemd very odd to me -
167	* this method should be equivalant and is clearer.
168	* Can not use strcat because we need to cycle through
169	* all the names.
170	*/
171	endbuf = buf + strlen (buf);
172
173	if (stat (buf, &statbuf))
174	return -1;
175	if (!S_ISREG (statbuf.st_mode))
176	return (-1);
177
178	if (((statbuf.st_mode & S_IRGRP) && getegid () == statbuf.st_gid) ||
179	((statbuf.st_mode & S_IRUSR) && geteuid () == statbuf.st_uid) || (statbuf.st_mode & S_IROTH))
180	mode |= 4;
181
182	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))
184	mode |= 2;
185
186	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	}
226		32
227	/* This rolls up wall, blocks_magic, blocks_view, etc, all into	33	/* This rolls up wall, blocks_magic, blocks_view, etc, all into
228	* one function that just returns a P_.. value (see map.h)	34	* one function that just returns a P_.. value (see map.h)
229	* it will also do map translation for tiled maps, returning	35	* it will also do map translation for tiled maps, returning
230	* new values into newmap, nx, and ny. Any and all of those	36	* new values into newmap, nx, and ny. Any and all of those
…		…
235	* don't expect to insert/remove anything from those spaces.	41	* don't expect to insert/remove anything from those spaces.
236	*/	42	*/
237	int	43	int
238	get_map_flags (maptile *oldmap, maptile **newmap, sint16 x, sint16 y, sint16 *nx, sint16 *ny)	44	get_map_flags (maptile *oldmap, maptile **newmap, sint16 x, sint16 y, sint16 *nx, sint16 *ny)
239	{	45	{
240	sint16 newx, newy;
241	int retval = 0;
242	maptile *mp;
243
244	newx = x;	46	sint16 newx = x;
245	newy = y;	47	sint16 newy = y;
246		48
247	mp = get_map_from_coord (oldmap, &newx, &newy);	49	maptile *mp = get_map_from_coord (oldmap, &newx, &newy);
248		50
249	if (!mp)	51	if (!mp)
250	return P_OUT_OF_MAP;	52	return P_OUT_OF_MAP;
251
252	if (mp != oldmap)
253	retval |= P_NEW_MAP;
254		53
255	if (newmap) *newmap = mp;	54	if (newmap) *newmap = mp;
256	if (nx) *nx = newx;	55	if (nx) *nx = newx;
257	if (ny) *ny = newy;	56	if (ny) *ny = newy;
258		57
259	return retval | mp->at (newx, newy).flags ();	58	return mp->at (newx, newy).flags () | (mp != oldmap ? P_NEW_MAP : 0);
260	}	59	}
261		60
262	/*	61	/*
263	* Returns true if the given coordinate is blocked except by the	62	* Returns true if the given coordinate is blocked except by the
264	* object passed is not blocking. This is used with	63	* object passed is not blocking. This is used with
…		…
308	* let the player through (inventory checkers for example)	107	* let the player through (inventory checkers for example)
309	*/	108	*/
310	if (!(mflags & P_IS_ALIVE) && !OB_TYPE_MOVE_BLOCK (ob, blocked))	109	if (!(mflags & P_IS_ALIVE) && !OB_TYPE_MOVE_BLOCK (ob, blocked))
311	return 0;	110	return 0;
312		111
313	if (ob->head != NULL)
314	ob = ob->head;	112	ob = ob->head_ ();
315		113
316	/* We basically go through the stack of objects, and if there is	114	/* We basically go through the stack of objects, and if there is
317	* some other object that has NO_PASS or FLAG_ALIVE set, return	115	* some other object that has NO_PASS or FLAG_ALIVE set, return
318	* true. If we get through the entire stack, that must mean	116	* true. If we get through the entire stack, that must mean
319	* ob is blocking it, so return 0.	117	* ob is blocking it, so return 0.
…		…
349	else	147	else
350	{	148	{
351	/* Broke apart a big nasty if into several here to make	149	/* Broke apart a big nasty if into several here to make
352	* this more readable. first check - if the space blocks	150	* this more readable. first check - if the space blocks
353	* movement, can't move here.	151	* movement, can't move here.
354	* second - if a monster, can't move there, unles it is a	152	* second - if a monster, can't move there, unless it is a
355	* hidden dm	153	* hidden dm
356	*/	154	*/
357	if (OB_MOVE_BLOCK (ob, tmp))	155	if (OB_MOVE_BLOCK (ob, tmp))
358	return 1;	156	return 1;
359	if (QUERY_FLAG (tmp, FLAG_ALIVE) && tmp->head != ob && tmp != ob &&	157
360	tmp->type != DOOR && !(QUERY_FLAG (tmp, FLAG_WIZ) && tmp->contr->hidden))	158	if (tmp->flag [FLAG_ALIVE]
		159	&& tmp->head_ () != ob
		160	&& tmp != ob
		161	&& tmp->type != DOOR
		162	&& !(tmp->flag [FLAG_WIZ] && tmp->contr->hidden))
361	return 1;	163	return 1;
362	}	164	}
363		165
364	}	166	}
365	return 0;	167	return 0;
366	}	168	}
367
368		169
369	/*	170	/*
370	* Returns true if the given object can't fit in the given spot.	171	* Returns true if the given object can't fit in the given spot.
371	* This is meant for multi space objects - for single space objecs,	172	* This is meant for multi space objects - for single space objecs,
372	* just calling get_map_blocked and checking that against movement type	173	* just calling get_map_blocked and checking that against movement type
…		…
398	archetype *tmp;	199	archetype *tmp;
399	int flag;	200	int flag;
400	maptile *m1;	201	maptile *m1;
401	sint16 sx, sy;	202	sint16 sx, sy;
402		203
403	if (ob == NULL)	204	if (!ob)
404	{	205	{
405	flag = get_map_flags (m, &m1, x, y, &sx, &sy);	206	flag = get_map_flags (m, &m1, x, y, &sx, &sy);
406	if (flag & P_OUT_OF_MAP)	207	if (flag & P_OUT_OF_MAP)
407	return P_OUT_OF_MAP;	208	return P_OUT_OF_MAP;
408		209
409	/* don't have object, so don't know what types would block */	210	/* don't have object, so don't know what types would block */
410	return m1->at (sx, sy).move_block;	211	return m1->at (sx, sy).move_block;
411	}	212	}
412		213
413	for (tmp = ob->arch; tmp; tmp = tmp->more)	214	for (tmp = ob->arch; tmp; tmp = (archetype *)tmp->more)
414	{	215	{
415	flag = get_map_flags (m, &m1, x + tmp->clone.x, y + tmp->clone.y, &sx, &sy);	216	flag = get_map_flags (m, &m1, x + tmp->x, y + tmp->y, &sx, &sy);
416		217
417	if (flag & P_OUT_OF_MAP)	218	if (flag & P_OUT_OF_MAP)
418	return P_OUT_OF_MAP;	219	return P_OUT_OF_MAP;
419	if (flag & P_IS_ALIVE)	220	if (flag & P_IS_ALIVE)
420	return P_IS_ALIVE;	221	return P_IS_ALIVE;
421		222
422	mapspace &ms = m1->at (sx, sy);	223	mapspace &ms = m1->at (sx, sy);
423
424		224
425	/* find_first_free_spot() calls this function. However, often	225	/* find_first_free_spot() calls this function. However, often
426	* ob doesn't have any move type (when used to place exits)	226	* ob doesn't have any move type (when used to place exits)
427	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.	227	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.
428	*/	228	*/
…		…
444	* into inventory, but just links them. What this does is go through	244	* into inventory, but just links them. What this does is go through
445	* and insert them properly.	245	* and insert them properly.
446	* The object 'container' is the object that contains the inventory.	246	* The object 'container' is the object that contains the inventory.
447	* This is needed so that we can update the containers weight.	247	* This is needed so that we can update the containers weight.
448	*/	248	*/
449
450	void	249	void
451	fix_container (object *container)	250	fix_container (object *container)
452	{	251	{
453	object *tmp = container->inv, *next;	252	object *tmp = container->inv, *next;
454		253
455	container->inv = NULL;	254	container->inv = 0;
456	while (tmp != NULL)	255	while (tmp)
457	{	256	{
458	next = tmp->below;	257	next = tmp->below;
459	if (tmp->inv)	258	if (tmp->inv)
460	fix_container (tmp);	259	fix_container (tmp);
		260
461	(void) insert_ob_in_ob (tmp, container);	261	insert_ob_in_ob (tmp, container);
462	tmp = next;	262	tmp = next;
463	}	263	}
		264
464	/* sum_weight will go through and calculate what all the containers are	265	/* sum_weight will go through and calculate what all the containers are
465	* carrying.	266	* carrying.
466	*/	267	*/
467	sum_weight (container);	268	sum_weight (container);
468	}	269	}
469		270
		271	void
		272	maptile::set_object_flag (int flag, int value)
		273	{
		274	if (!spaces)
		275	return;
		276
		277	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		278	for (object *tmp = ms->bot; tmp; tmp = tmp->above)
		279	tmp->flag [flag] = value;
		280	}
		281
470	/* link_multipart_objects go through all the objects on the map looking	282	/* link_multipart_objects go through all the objects on the map looking
471	* for objects whose arch says they are multipart yet according to the	283	* for objects whose arch says they are multipart yet according to the
472	* info we have, they only have the head (as would be expected when	284	* info we have, they only have the head (as would be expected when
473	* they are saved). We do have to look for the old maps that did save	285	* they are saved).
474	* the more sections and not re-add sections for them.
475	*/	286	*/
476	static void	287	void
477	link_multipart_objects (maptile *m)	288	maptile::link_multipart_objects ()
478	{	289	{
479	int x, y;	290	if (!spaces)
480	object *tmp, *op, *last, *above;	291	return;
481	archetype *at;
482		292
483	for (x = 0; x < m->width; x++)	293	for (mapspace *ms = spaces + size (); ms-- > spaces; )
484	for (y = 0; y < m->height; y++)	294	{
485	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = above)	295	object *op = ms->bot;
		296	while (op)
486	{	297	{
487	above = tmp->above;
488
489	/* already multipart - don't do anything more */	298	/* already multipart - don't do anything more */
490	if (tmp->head || tmp->more)	299	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	{	300	{
498	op = arch_to_object (at);	301	op->remove ();
		302	op->expand_tail ();
499		303
500	/* update x,y coordinates */	304	// FIXME: INS_ON_TOP is just a workaround for the pentagram vs.
501	op->x += tmp->x;	305	// multi-tile monster bug, where INS_ABOVE_FLOOR_ONLY put the monsters
502	op->y += tmp->y;	306	// below the pentagrams... hopefully INS_ON_TOP doesn't break anything
503	op->head = tmp;	307	insert (op, op->x, op->y, 0, INS_NO_MERGE | INS_ON_TOP | INS_NO_WALK_ON);
504	op->map = m;	308
505	last->more = op;	309	op = ms->bot; // we are mutating the mapspace too much with INS_ON_TOP
506	op->name = tmp->name;	310	// so we have to reset the iteration through the mapspace
507	op->title = tmp->title;
508	/* we could link all the parts onto tmp, and then just
509	* call insert_ob_in_map once, but the effect is the same,
510	* as insert_ob_in_map will call itself with each part, and
511	* the coding is simpler to just to it here with each part.
512	*/	311	}
513	insert_ob_in_map (op, op->map, tmp, INS_NO_MERGE | INS_ABOVE_FLOOR_ONLY | INS_NO_WALK_ON);	312	else
514	} /* for at = tmp->arch->more */	313	op = op->above;
515	} /* for objects on this space */	314	}
		315	}
516	}	316	}
517		317
518	/*	318	/*
519	* Loads (ands parses) the objects into a given map from the specified	319	* Loads (ands parses) the objects into a given map from the specified
520	* file pointer.	320	* file pointer.
521	* mapflags is the same as we get with load_original_map
522	*/	321	*/
523	void	322	bool
524	load_objects (maptile *m, object_thawer & fp, int mapflags)	323	maptile::_load_objects (object_thawer &f)
525	{	324	{
526	int i, j;	325	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	{	326	{
535	/* if the archetype for the object is null, means that we	327	coroapi::cede_to_tick_every (100); // cede once in a while
536	* got an invalid object. Don't do anything with it - the game	328
537	* or editor will not be able to do anything with it either.	329	switch (f.kw)
538	*/
539	if (op->arch == NULL)
540	{	330	{
541	LOG (llevDebug, "Discarding object without arch: %s\n", op->name ? (const char *) op->name : "(null)");	331	case KW_arch:
542	continue;	332	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	333	{
		334	if (op->inv)
		335	sum_weight (op);
		336
552	insert_ob_in_map (op, m, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ON_TOP | INS_MAP_LOAD);	337	insert_ob_in_map (op, this, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ON_TOP | INS_MAP_LOAD);
		338	}
553		339
554	if (op->inv)	340	continue;
555	sum_weight (op);
556		341
557	prev = op, last_more = op;
558	break;
559
560	case LL_MORE:	342	case KW_EOF:
561	insert_ob_in_map (op, m, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ABOVE_FLOOR_ONLY);	343	return true;
562	op->head = prev, last_more->more = op, last_more = op;	344
		345	default:
		346	if (!f.parse_error ("map file"))
		347	return false;
563	break;	348	break;
564	}	349	}
565		350
566	if (mapflags & MAP_STYLE)	351	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	{	352	}
575	for (j = 0; j < m->height; j++)	353
		354	return true;
		355	}
		356
		357	void
		358	maptile::activate ()
		359	{
		360	if (spaces)
		361	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		362	for (object *op = ms->bot; op; op = op->above)
		363	op->activate_recursive ();
		364	}
		365
		366	void
		367	maptile::deactivate ()
		368	{
		369	if (spaces)
		370	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		371	for (object *op = ms->bot; op; op = op->above)
		372	op->deactivate_recursive ();
		373	}
		374
		375	bool
		376	maptile::_save_objects (object_freezer &f, int flags)
		377	{
		378	coroapi::cede_to_tick ();
		379
		380	if (flags & IO_HEADER)
		381	_save_header (f);
		382
		383	if (!spaces)
		384	return false;
		385
		386	for (int i = 0; i < size (); ++i)
		387	{
		388	bool unique = 0;
		389
		390	for (object *op = spaces [i].bot; op; op = op->above)
576	{	391	{
577	unique = 0;	392	unique |= op->flag [FLAG_UNIQUE] && op->flag [FLAG_IS_FLOOR];
578	/* check for unique items, or unique squares */	393
579	for (otmp = GET_MAP_OB (m, i, j); otmp; otmp = otmp->above)	394	if (expect_false (!op->can_map_save ()))
		395	continue;
		396
		397	if (expect_false (unique || op->flag [FLAG_UNIQUE]))
580	{	398	{
581	if (QUERY_FLAG (otmp, FLAG_UNIQUE) || QUERY_FLAG (otmp, FLAG_OBJ_SAVE_ON_OVL))	399	if (flags & IO_UNIQUES)
582	unique = 1;	400	op->write (f);
583
584	if (!(mapflags & (MAP_OVERLAY | MAP_PLAYER_UNIQUE) || unique))
585	SET_FLAG (otmp, FLAG_OBJ_ORIGINAL);
586	}	401	}
		402	else if (expect_true (flags & IO_OBJECTS))
		403	op->write (f);
587	}	404	}
588	}	405	}
589		406
590	op->destroy ();	407	coroapi::cede_to_tick ();
591	link_multipart_objects (m);
592	}
593		408
594	/* This saves all the objects on the map in a non destructive fashion.	409	return true;
595	* Modified by MSW 2001-07-01 to do in a single pass - reduces code,	410	}
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		411
605	/* first pass - save one-part objects */	412	bool
606	for (i = 0; i < m->width; i++)	413	maptile::_save_objects (const char *path, int flags)
607	for (j = 0; j < m->height; j++)	414	{
608	{	415	object_freezer freezer;
609	unique = 0;
610		416
611	for (op = m->at (i, j).bot; op; op = op->above)	417	if (!_save_objects (freezer, flags))
612	{	418	return false;
613	if (op->flag [FLAG_UNIQUE] && op->flag [FLAG_IS_FLOOR])
614	unique = 1;
615		419
616	if (!op->can_map_save ())	420	return freezer.save (path);
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	}
625	}	421	}
626		422
627	maptile::maptile ()	423	maptile::maptile ()
628	{	424	{
629	in_memory = MAP_SWAPPED;	425	in_memory = MAP_SWAPPED;
630		426
631	/* The maps used to pick up default x and y values from the	427	/* The maps used to pick up default x and y values from the
632	* map archetype. Mimic that behaviour.	428	* map archetype. Mimic that behaviour.
633	*/	429	*/
		430	width = 16;
		431	height = 16;
		432	timeout = 300;
		433	max_nrof = 1000; // 1000 items of anything
		434	max_volume = 2000000; // 2m³
		435	}
		436
		437	maptile::maptile (int w, int h)
		438	{
		439	in_memory = MAP_SWAPPED;
		440
634	width = 16;	441	width = w;
635	height = 16;	442	height = h;
636	reset_timeout = 0;	443	reset_timeout = 0;
637	timeout = 300;	444	timeout = 300;
638	enter_x = 0;	445	enter_x = 0;
639	enter_y = 0;	446	enter_y = 0;
640	/*set part to -1 indicating conversion to weather map not yet done */
641	worldpartx = -1;
642	worldparty = -1;
643	}
644		447
645	void	448	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	}	449	}
682		450
683	/*	451	/*
684	* Allocates the arrays contained in a maptile.	452	* Allocates the arrays contained in a maptile.
685	* This basically allocates the dynamic array of spaces for the	453	* This basically allocates the dynamic array of spaces for the
686	* map.	454	* map.
687	*/	455	*/
688	void	456	void
689	maptile::allocate ()	457	maptile::alloc ()
690	{	458	{
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)	459	if (spaces)
698	{	460	return;
699	LOG (llevError, "allocate_map called with already allocated map (%s)\n", path);
700	sfree (spaces, size ());
701	}
702		461
703	spaces = salloc0<mapspace> (size ());	462	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	}	463	}
722		464
723	/* Takes a string from a map definition and outputs a pointer to the array of shopitems	465	/* 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	466	* corresponding to that string. Memory is allocated for this, it must be freed
725	* at a later date.	467	* at a later date.
…		…
841	* put all the stuff in the map object so that names actually make	583	* put all the stuff in the map object so that names actually make
842	* sense.	584	* sense.
843	* This could be done in lex (like the object loader), but I think	585	* 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.	586	* currently, there are few enough fields this is not a big deal.
845	* MSW 2001-07-01	587	* MSW 2001-07-01
846	* return 0 on success, 1 on failure.
847	*/	588	*/
848		589	bool
849	static int	590	maptile::_load_header (object_thawer &thawer)
850	load_map_header (object_thawer & fp, maptile *m)
851	{	591	{
852	char buf[HUGE_BUF], msgbuf[HUGE_BUF], maplorebuf[HUGE_BUF], *key = NULL, *value, *end;	592	for (;;)
853	int msgpos = 0;
854	int maplorepos = 0;
855
856	while (fgets (buf, HUGE_BUF, fp) != NULL)
857	{	593	{
858	buf[HUGE_BUF - 1] = 0;	594	switch (thawer.kw)
859	key = buf;
860
861	while (isspace (*key))
862	key++;
863
864	if (*key == 0)
865	continue; /* empty line */
866
867	value = strchr (key, ' ');
868
869	if (!value)
870	{	595	{
871	if ((end = strchr (key, '\n')))	596	case KW_msg:
872	*end = 0;	597	thawer.get_ml (KW_endmsg, msg);
		598	break;
		599
		600	case KW_lore: // CF+ extension
		601	thawer.get_ml (KW_endlore, maplore);
		602	break;
		603
		604	case KW_maplore:
		605	thawer.get_ml (KW_endmaplore, maplore);
		606	break;
		607
		608	case KW_arch:
		609	if (strcmp (thawer.get_str (), "map"))
		610	LOG (llevError, "%s: loading map and got a non 'arch map' line (arch %s), skipping.\n", &path, thawer.get_str ());
		611	break;
		612
		613	case KW_oid:
		614	thawer.get (this, thawer.get_sint32 ());
		615	break;
		616
		617	case KW_file_format_version: break; // nop
		618
		619	case KW_name: thawer.get (name); break;
		620	case KW_attach: thawer.get (attach); break;
		621	case KW_reset_time: thawer.get (reset_time); break;
		622	case KW_shopgreed: thawer.get (shopgreed); break;
		623	case KW_shopmin: thawer.get (shopmin); break;
		624	case KW_shopmax: thawer.get (shopmax); break;
		625	case KW_shoprace: thawer.get (shoprace); break;
		626	case KW_outdoor: thawer.get (outdoor); break;
		627	case KW_temp: thawer.get (temp); break;
		628	case KW_pressure: thawer.get (pressure); break;
		629	case KW_humid: thawer.get (humid); break;
		630	case KW_windspeed: thawer.get (windspeed); break;
		631	case KW_winddir: thawer.get (winddir); break;
		632	case KW_sky: thawer.get (sky); break;
		633
		634	case KW_per_player: thawer.get (per_player); break;
		635	case KW_per_party: thawer.get (per_party); break;
		636	case KW_no_reset: thawer.get (no_reset); break;
		637
		638	case KW_region: default_region = region::find (thawer.get_str ()); break;
		639	case KW_shopitems: shopitems = parse_shop_string (thawer.get_str ()); break;
		640
		641	// old names new names
		642	case KW_hp: case KW_enter_x: thawer.get (enter_x); break;
		643	case KW_sp: case KW_enter_y: thawer.get (enter_y); break;
		644	case KW_x: case KW_width: thawer.get (width); break;
		645	case KW_y: case KW_height: thawer.get (height); break;
		646	case KW_weight: case KW_reset_timeout: thawer.get (reset_timeout); break;
		647	case KW_value: case KW_swap_time: thawer.get (timeout); break;
		648	case KW_level: case KW_difficulty: thawer.get (difficulty); difficulty = clamp (difficulty, 1, settings.max_level); break;
		649	case KW_invisible: case KW_darkness: thawer.get (darkness); break;
		650	case KW_stand_still: case KW_fixed_resettime: thawer.get (fixed_resettime); break;
		651
		652	case KW_tile_path_1: thawer.get (tile_path [0]); break;
		653	case KW_tile_path_2: thawer.get (tile_path [1]); break;
		654	case KW_tile_path_3: thawer.get (tile_path [2]); break;
		655	case KW_tile_path_4: thawer.get (tile_path [3]); break;
		656
		657	case KW_ERROR:
		658	set_key_text (thawer.kw_str, thawer.value);
		659	break;
		660
		661	case KW_end:
		662	thawer.next ();
		663	return true;
		664
		665	default:
		666	if (!thawer.parse_error ("map", 0))
		667	return false;
		668	break;
873	}	669	}
874	else
875	{
876	*value = 0;
877	value++;
878	end = strchr (value, '\n');
879		670
880	while (isspace (*value))	671	thawer.next ();
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	{	672	}
1091	LOG (llevError, "Got premature eof on map header!\n");
1092	return 1;
1093	}
1094		673
1095	return 0;	674	abort ();
1096	}
1097
1098	/*
1099	* Opens the file "filename" and reads information about the map
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	{
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);
1125
1126	if (!thawer)
1127	return 0;
1128
1129	m = get_linked_map ();
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	}	675	}
1237		676
1238	/******************************************************************************	677	/******************************************************************************
1239	* This is the start of unique map handling code	678	* This is the start of unique map handling code
1240	*****************************************************************************/	679	*****************************************************************************/
1241		680
1242	/* This goes through map 'm' and removed any unique items on the map. */	681	/* This goes through the maptile and removed any unique items on the map. */
1243	static void	682	void
1244	delete_unique_items (maptile *m)	683	maptile::clear_unique_items ()
1245	{	684	{
1246	int i, j, unique;	685	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	{	686	{
1252	unique = 0;	687	int unique = 0;
1253		688	for (object *op = spaces [i].bot; op; )
1254	for (op = GET_MAP_OB (m, i, j); op; op = next)
1255	{	689	{
1256	next = op->above;	690	object *above = op->above;
1257		691
1258	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))	692	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))
1259	unique = 1;	693	unique = 1;
1260		694
1261	if (op->head == NULL && (QUERY_FLAG (op, FLAG_UNIQUE) || unique))	695	if (op->head_ () == op && (QUERY_FLAG (op, FLAG_UNIQUE) || unique))
1262	{	696	{
1263	op->destroy_inv (false);	697	op->destroy_inv (false);
1264	op->destroy ();	698	op->destroy ();
1265	}	699	}
1266	}
1267	}
1268	}
1269		700
1270	/*	701	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	}	702	}
1333	else
1334	strcpy (filename, m->path);
1335
1336	make_path_to_file (filename);
1337	}
1338	else
1339	{	703	}
1340	if (!m->tmpname)	704	}
1341	m->tmpname = tempnam (settings.tmpdir, NULL);
1342		705
1343	strcpy (filename, m->tmpname);	706	bool
		707	maptile::_save_header (object_freezer &freezer)
		708	{
		709	#define MAP_OUT(k) freezer.put (KW_ ## k, k)
		710	#define MAP_OUT2(k,v) freezer.put (KW_ ## k, v)
		711
		712	MAP_OUT2 (arch, "map");
		713
		714	if (name) MAP_OUT (name);
		715	MAP_OUT (swap_time);
		716	MAP_OUT (reset_time);
		717	MAP_OUT (reset_timeout);
		718	MAP_OUT (fixed_resettime);
		719	MAP_OUT (no_reset);
		720	MAP_OUT (difficulty);
		721
		722	if (default_region) MAP_OUT2 (region, default_region->name);
		723
		724	if (shopitems)
1344	}	725	{
		726	char shop[MAX_BUF];
		727	print_shop_string (this, shop);
		728	MAP_OUT2 (shopitems, shop);
		729	}
1345		730
1346	LOG (llevDebug, "Saving map %s to %s\n", m->path, filename);	731	MAP_OUT (shopgreed);
1347	m->in_memory = MAP_SAVING;	732	MAP_OUT (shopmin);
		733	MAP_OUT (shopmax);
		734	if (shoprace) MAP_OUT (shoprace);
		735	MAP_OUT (darkness);
		736	MAP_OUT (width);
		737	MAP_OUT (height);
		738	MAP_OUT (enter_x);
		739	MAP_OUT (enter_y);
1348		740
		741	if (msg) freezer.put (KW_msg , KW_endmsg , msg);
		742	if (maplore) freezer.put (KW_maplore, KW_endmaplore, maplore);
		743
		744	MAP_OUT (outdoor);
		745	MAP_OUT (temp);
		746	MAP_OUT (pressure);
		747	MAP_OUT (humid);
		748	MAP_OUT (windspeed);
		749	MAP_OUT (winddir);
		750	MAP_OUT (sky);
		751
		752	MAP_OUT (per_player);
		753	MAP_OUT (per_party);
		754
		755	if (tile_path [0]) MAP_OUT2 (tile_path_1, tile_path [0]);
		756	if (tile_path [1]) MAP_OUT2 (tile_path_2, tile_path [1]);
		757	if (tile_path [2]) MAP_OUT2 (tile_path_3, tile_path [2]);
		758	if (tile_path [3]) MAP_OUT2 (tile_path_4, tile_path [3]);
		759
		760	freezer.put (this);
		761	freezer.put (KW_end);
		762
		763	return true;
		764	}
		765
		766	bool
		767	maptile::_save_header (const char *path)
		768	{
1349	object_freezer freezer;	769	object_freezer freezer;
1350		770
1351	/* legacy */	771	if (!_save_header (freezer))
1352	fprintf (freezer, "arch map\n");	772	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		773
1416	/* Save any tiling information, except on overlays */	774	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	}	775	}
1452		776
1453	/*	777	/*
1454	* Remove and free all objects in the given map.	778	* Remove and free all objects in the given map.
1455	*/	779	*/
1456	void	780	void
1457	free_all_objects (maptile *m)	781	maptile::clear ()
1458	{	782	{
		783	sfree (regions, size ()); regions = 0;
		784	delete [] regionmap; regionmap = 0;
		785
1459	if (!m->spaces)	786	if (spaces)
1460	return;
1461
1462	for (int i = 0; i < m->width; i++)
1463	for (int j = 0; j < m->height; j++)
1464	{	787	{
1465	mapspace &ms = m->at (i, j);	788	for (mapspace *ms = spaces + size (); ms-- > spaces; )
1466
1467	while (object *op = ms.bot)	789	while (object *op = ms->bot)
1468	{	790	{
1469	if (op->head)
1470	op = op->head;	791	op = op->head_ ();
1471
1472	op->destroy_inv (false);	792	op->destroy_inv (false);
1473	op->destroy ();	793	op->destroy ();
1474	}	794	}
		795
		796	sfree (spaces, size ()), spaces = 0;
1475	}	797	}
1476	}
1477		798
1478	/*	799	if (buttons)
1479	* Frees everything allocated by the given maptileure.	800	free_objectlinkpt (buttons), buttons = 0;
1480	* don't free tmpname - our caller is left to do that	801	}
1481	*/	802
1482	void	803	void
1483	free_map (maptile *m, int flag)	804	maptile::clear_header ()
1484	{	805	{
1485	if (!m->in_memory) //TODO: makes no sense to me?	806	name = 0;
1486	return;	807	msg = 0;
1487		808	maplore = 0;
1488	m->in_memory = MAP_SAVING;	809	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;	810	delete [] shopitems, shopitems = 0;
1502
1503	if (m->buttons)
1504	free_objectlinkpt (m->buttons), m->buttons = 0;
1505		811
1506	for (int i = 0; i < 4; i++)	812	for (int i = 0; i < 4; i++)
1507	free (m->tile_path[i]), m->tile_path[i] = 0;	813	tile_path [i] = 0;
1508
1509	m->in_memory = MAP_SWAPPED;
1510	}	814	}
1511		815
1512	maptile::~maptile ()	816	maptile::~maptile ()
1513	{	817	{
1514	assert (destroyed ());	818	assert (destroyed ());
1515	}	819	}
1516		820
1517	void	821	void
1518	maptile::do_destroy ()	822	maptile::clear_links_to (maptile *m)
1519	{	823	{
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	824	/* We need to look through all the maps and see if any maps
1528	* are pointing at this one for tiling information. Since	825	* are pointing at this one for tiling information. Since
1529	* tiling can be asymetric, we just can not look to see which	826	* tiling can be asymetric, we just can not look to see which
1530	* maps this map tiles with and clears those.	827	* maps this map tiles with and clears those.
1531	*/	828	*/
1532	//TODO: non-euclidean-tiling MUST GO
1533	for_all_maps (m)
1534	for (int i = 0; i < 4; i++)	829	for (int i = 0; i < 4; i++)
1535	if (m->tile_map[i] == this)	830	if (tile_map[i] == m)
1536	m->tile_map[i] = 0;	831	tile_map[i] = 0;
1537	}	832	}
1538		833
1539	//TODO: must go
1540	void	834	void
1541	delete_map (maptile *m)	835	maptile::do_destroy ()
1542	{	836	{
1543	if (m)	837	attachable::do_destroy ();
		838
		839	clear ();
		840	}
		841
		842	/* decay and destroy perishable items in a map */
		843	void
		844	maptile::do_decay_objects ()
		845	{
		846	if (!spaces)
		847	return;
		848
		849	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		850	for (object *above, *op = ms->bot; op; op = above)
		851	{
		852	above = op->above;
		853
		854	bool destroy = 0;
		855
		856	// do not decay anything above unique floor tiles (yet :)
		857	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))
		858	break;
		859
		860	if (QUERY_FLAG (op, FLAG_IS_FLOOR)
		861	|| QUERY_FLAG (op, FLAG_OBJ_ORIGINAL)
		862	|| QUERY_FLAG (op, FLAG_UNIQUE)
		863	|| QUERY_FLAG (op, FLAG_OVERLAY_FLOOR)
		864	|| QUERY_FLAG (op, FLAG_UNPAID)
		865	|| op->is_alive ())
		866	; // do not decay
		867	else if (op->is_weapon ())
		868	{
		869	op->stats.dam--;
		870	if (op->stats.dam < 0)
		871	destroy = 1;
		872	}
		873	else if (op->is_armor ())
		874	{
		875	op->stats.ac--;
		876	if (op->stats.ac < 0)
		877	destroy = 1;
		878	}
		879	else if (op->type == FOOD)
		880	{
		881	op->stats.food -= rndm (5, 20);
		882	if (op->stats.food < 0)
		883	destroy = 1;
		884	}
		885	else
		886	{
		887	int mat = op->materials;
		888
		889	if (mat & M_PAPER
		890	|| mat & M_LEATHER
		891	|| mat & M_WOOD
		892	|| mat & M_ORGANIC
		893	|| mat & M_CLOTH
		894	|| mat & M_LIQUID
		895	|| (mat & M_IRON && rndm (1, 5) == 1)
		896	|| (mat & M_GLASS && rndm (1, 2) == 1)
		897	|| ((mat & M_STONE || mat & M_ADAMANT) && rndm (1, 10) == 1)
		898	|| ((mat & M_SOFT_METAL || mat & M_BONE) && rndm (1, 3) == 1)
		899	|| (mat & M_ICE && temp > 32))
		900	destroy = 1;
		901	}
		902
		903	/* adjust overall chance below */
		904	if (destroy && rndm (0, 1))
1544	m->destroy ();	905	op->destroy ();
		906	}
1545	}	907	}
1546		908
1547	/*	909	/*
1548	* Makes sure the given map is loaded and swapped in.	910	* 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	*	911	*/
1556	* Returns a pointer to the given map.	912	void
1557	*/	913	maptile::update_buttons ()
1558	maptile *
1559	ready_map_name (const char *name, int flags)
1560	{	914	{
1561	if (!name)	915	for (oblinkpt *obp = buttons; obp; obp = obp->next)
1562	return 0;	916	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	{	917	{
1581	/* first visit or time to reset */	918	if (!ol->ob)
1582	if (m)
1583	{	919	{
1584	clean_tmp_map (m); /* Doesn't make much difference */	920	LOG (llevError, "Internal error in update_button (%s (%dx%d), connected %ld).\n",
1585	delete_map (m);	921	ol->ob ? (const char *) ol->ob->name : "null", ol->ob ? ol->ob->x : -1, ol->ob ? ol->ob->y : -1, obp->value);
		922	continue;
1586	}	923	}
1587		924
1588	/* create and load a map */	925	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	{	926	{
1607	m = load_overlay_map (name, m);	927	update_button (ol->ob);
1608	if (m == NULL)	928	break;
1609	return NULL;
1610	}	929	}
1611
1612	if (flags & MAP_PLAYER_UNIQUE)
1613	INVOKE_MAP (SWAPIN, m);
1614
1615	}	930	}
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	}	931	}
1652
1653		932
1654	/*	933	/*
1655	* This routine is supposed to find out the difficulty of the map.	934	* This routine is supposed to find out the difficulty of the map.
1656	* difficulty does not have a lot to do with character level,	935	* difficulty does not have a lot to do with character level,
1657	* but does have a lot to do with treasure on the map.	936	* 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	938	* 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	939	* in the map is zero, then use this routine. Maps should really
1661	* have a difficulty set than using this function - human calculation	940	* have a difficulty set than using this function - human calculation
1662	* is much better than this functions guesswork.	941	* is much better than this functions guesswork.
1663	*/	942	*/
1664
1665	int	943	int
1666	calculate_difficulty (maptile *m)	944	maptile::estimate_difficulty () const
1667	{	945	{
1668	object *op;
1669	archetype *at;
1670	int x, y, i;
1671	long monster_cnt = 0;	946	long monster_cnt = 0;
1672	double avgexp = 0;	947	double avgexp = 0;
1673	sint64 total_exp = 0;	948	sint64 total_exp = 0;
1674		949
1675	if (m->difficulty)	950	for (mapspace *ms = spaces + size (); ms-- > spaces; )
1676	{	951	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	{	952	{
1685	if (QUERY_FLAG (op, FLAG_MONSTER))	953	if (QUERY_FLAG (op, FLAG_MONSTER))
1686	{	954	{
1687	total_exp += op->stats.exp;	955	total_exp += op->stats.exp;
1688	monster_cnt++;	956	monster_cnt++;
1689	}	957	}
1690		958
1691	if (QUERY_FLAG (op, FLAG_GENERATOR))	959	if (QUERY_FLAG (op, FLAG_GENERATOR))
1692	{	960	{
1693	total_exp += op->stats.exp;	961	total_exp += op->stats.exp;
		962
1694	at = type_to_archetype (GENERATE_TYPE (op));	963	if (archetype *at = type_to_archetype (GENERATE_TYPE (op)))
1695
1696	if (at != NULL)
1697	total_exp += at->clone.stats.exp * 8;	964	total_exp += at->stats.exp * 8;
1698		965
1699	monster_cnt++;	966	monster_cnt++;
1700	}	967	}
1701	}	968	}
1702		969
1703	avgexp = (double) total_exp / monster_cnt;	970	avgexp = (double) total_exp / monster_cnt;
1704		971
1705	for (i = 1; i <= settings.max_level; i++)	972	for (int i = 1; i <= settings.max_level; i++)
1706	{
1707	if ((level_exp (i, 1) - level_exp (i - 1, 1)) > (100 * avgexp))	973	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;	974	return i;
1711	}
1712	}
1713		975
1714	return 1;	976	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	}	977	}
1744		978
1745	/* change_map_light() - used to change map light level (darkness)	979	/* change_map_light() - used to change map light level (darkness)
1746	* up or down. Returns true if successful. It should now be	980	* up or down. Returns true if successful. It should now be
1747	* possible to change a value by more than 1.	981	* possible to change a value by more than 1.
1748	* Move this from los.c to map.c since this is more related	982	* Move this from los.c to map.c since this is more related
1749	* to maps than los.	983	* to maps than los.
1750	* postive values make it darker, negative make it brighter	984	* postive values make it darker, negative make it brighter
1751	*/	985	*/
1752
1753	int	986	int
1754	change_map_light (maptile *m, int change)	987	maptile::change_map_light (int change)
1755	{	988	{
1756	int new_level = m->darkness + change;	989	int new_level = darkness + change;
1757		990
1758	/* Nothing to do */	991	/* Nothing to do */
1759	if (!change || (new_level <= 0 && m->darkness == 0) || (new_level >= MAX_DARKNESS && m->darkness >= MAX_DARKNESS))	992	if (!change || (new_level <= 0 && darkness == 0) || (new_level >= MAX_DARKNESS && darkness >= MAX_DARKNESS))
1760	{
1761	return 0;	993	return 0;
1762	}
1763		994
1764	/* inform all players on the map */	995	/* inform all players on the map */
1765	if (change > 0)	996	if (change > 0)
1766	new_info_map (NDI_BLACK | NDI_UNIQUE, m, "It becomes darker.");	997	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes darker.");
1767	else	998	else
1768	new_info_map (NDI_BLACK | NDI_UNIQUE, m, "It becomes brighter.");	999	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes brighter.");
1769		1000
1770	/* Do extra checking. since m->darkness is a unsigned value,	1001	/* Do extra checking. since darkness is a unsigned value,
1771	* we need to be extra careful about negative values.	1002	* we need to be extra careful about negative values.
1772	* In general, the checks below are only needed if change	1003	* In general, the checks below are only needed if change
1773	* is not +/-1	1004	* is not +/-1
1774	*/	1005	*/
1775	if (new_level < 0)	1006	if (new_level < 0)
1776	m->darkness = 0;	1007	darkness = 0;
1777	else if (new_level >= MAX_DARKNESS)	1008	else if (new_level >= MAX_DARKNESS)
1778	m->darkness = MAX_DARKNESS;	1009	darkness = MAX_DARKNESS;
1779	else	1010	else
1780	m->darkness = new_level;	1011	darkness = new_level;
1781		1012
1782	/* All clients need to get re-updated for the change */	1013	/* All clients need to get re-updated for the change */
1783	update_all_map_los (m);	1014	update_all_map_los (this);
1784	return 1;	1015	return 1;
1785	}	1016	}
1786		1017
1787	/*	1018	/*
1788	* This function updates various attributes about a specific space	1019	* This function updates various attributes about a specific space
…		…
1792	*/	1023	*/
1793	void	1024	void
1794	mapspace::update_ ()	1025	mapspace::update_ ()
1795	{	1026	{
1796	object *tmp, *last = 0;	1027	object *tmp, *last = 0;
1797	uint8 flags = 0, light = 0, anywhere = 0;	1028	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;	1029	MoveType move_block = 0, move_slow = 0, move_on = 0, move_off = 0, move_allow = 0;
1801		1030
1802	middle = blank_face;	1031	//object *middle = 0;
1803	top = blank_face;	1032	//object *top = 0;
1804	floor = blank_face;	1033	//object *floor = 0;
1805		1034	// this seems to generate better code than using locals, above
1806	middle_obj = 0;	1035	object *&top = faces_obj[0] = 0;
1807	top_obj = 0;	1036	object *&middle = faces_obj[1] = 0;
1808	floor_obj = 0;	1037	object *&floor = faces_obj[2] = 0;
1809		1038
1810	for (tmp = bot; tmp; last = tmp, tmp = tmp->above)	1039	for (tmp = bot; tmp; last = tmp, tmp = tmp->above)
1811	{	1040	{
1812	/* This could be made additive I guess (two lights better than	1041	/* This could be made additive I guess (two lights better than
1813	* one). But if so, it shouldn't be a simple additive - 2	1042	* one). But if so, it shouldn't be a simple additive - 2
…		…
1826	* Always put the player down for drawing.	1055	* Always put the player down for drawing.
1827	*/	1056	*/
1828	if (!tmp->invisible)	1057	if (!tmp->invisible)
1829	{	1058	{
1830	if ((tmp->type == PLAYER || QUERY_FLAG (tmp, FLAG_MONSTER)))	1059	if ((tmp->type == PLAYER || QUERY_FLAG (tmp, FLAG_MONSTER)))
1831	{
1832	top = tmp->face;
1833	top_obj = tmp;	1060	top = tmp;
1834	}
1835	else if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))	1061	else if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))
1836	{	1062	{
1837	/* If we got a floor, that means middle and top were below it,	1063	/* If we got a floor, that means middle and top were below it,
1838	* so should not be visible, so we clear them.	1064	* so should not be visible, so we clear them.
1839	*/	1065	*/
1840	middle = blank_face;	1066	middle = 0;
1841	top = blank_face;	1067	top = 0;
1842	floor = tmp->face;
1843	floor_obj = tmp;	1068	floor = tmp;
1844	}	1069	}
1845	/* Flag anywhere have high priority */	1070	/* Flag anywhere have high priority */
1846	else if (QUERY_FLAG (tmp, FLAG_SEE_ANYWHERE))	1071	else if (QUERY_FLAG (tmp, FLAG_SEE_ANYWHERE))
1847	{	1072	{
1848	middle = tmp->face;
1849
1850	middle_obj = tmp;	1073	middle = tmp;
1851	anywhere = 1;	1074	anywhere = 1;
1852	}	1075	}
1853	/* Find the highest visible face around. If equal	1076	/* Find the highest visible face around. If equal
1854	* visibilities, we still want the one nearer to the	1077	* visibilities, we still want the one nearer to the
1855	* top	1078	* top
1856	*/	1079	*/
1857	else if (middle == blank_face || (tmp->face->visibility > middle->visibility && !anywhere))	1080	else if (!middle || (::faces [tmp->face].visibility > ::faces [middle->face].visibility && !anywhere))
1858	{
1859	middle = tmp->face;
1860	middle_obj = tmp;	1081	middle = tmp;
1861	}
1862	}	1082	}
1863		1083
1864	if (tmp == tmp->above)	1084	if (tmp == tmp->above)
1865	{	1085	{
1866	LOG (llevError, "Error in structure of map\n");	1086	LOG (llevError, "Error in structure of map\n");
…		…
1901	* middle face. This should not happen, as we already have the	1121	* middle face. This should not happen, as we already have the
1902	* else statement above so middle should not get set. OTOH, it	1122	* else statement above so middle should not get set. OTOH, it
1903	* may be possible for the faces to match but be different objects.	1123	* may be possible for the faces to match but be different objects.
1904	*/	1124	*/
1905	if (top == middle)	1125	if (top == middle)
1906	middle = blank_face;	1126	middle = 0;
1907		1127
1908	/* There are three posibilities at this point:	1128	/* There are three posibilities at this point:
1909	* 1) top face is set, need middle to be set.	1129	* 1) top face is set, need middle to be set.
1910	* 2) middle is set, need to set top.	1130	* 2) middle is set, need to set top.
1911	* 3) neither middle or top is set - need to set both.	1131	* 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 */	1136	/* Once we get to a floor, stop, since we already have a floor object */
1917	if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))	1137	if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))
1918	break;	1138	break;
1919		1139
1920	/* If two top faces are already set, quit processing */	1140	/* If two top faces are already set, quit processing */
1921	if ((top != blank_face) && (middle != blank_face))	1141	if (top && middle)
1922	break;	1142	break;
1923		1143
1924	/* Only show visible faces, unless its the editor - show all */	1144	/* Only show visible faces */
1925	if (!tmp->invisible || editor)	1145	if (!tmp->invisible)
1926	{	1146	{
1927	/* Fill in top if needed */	1147	/* Fill in top if needed */
1928	if (top == blank_face)	1148	if (!top)
1929	{	1149	{
1930	top = tmp->face;
1931	top_obj = tmp;	1150	top = tmp;
1932	if (top == middle)	1151	if (top == middle)
1933	middle = blank_face;	1152	middle = 0;
1934	}	1153	}
1935	else	1154	else
1936	{	1155	{
1937	/* top is already set - we should only get here if	1156	/* top is already set - we should only get here if
1938	* middle is not set	1157	* middle is not set
1939	*	1158	*
1940	* Set the middle face and break out, since there is nothing	1159	* Set the middle face and break out, since there is nothing
1941	* more to fill in. We don't check visiblity here, since	1160	* more to fill in. We don't check visiblity here, since
1942	*	1161	*
1943	*/	1162	*/
1944	if (tmp->face != top)	1163	if (tmp != top)
1945	{	1164	{
1946	middle = tmp->face;
1947	middle_obj = tmp;	1165	middle = tmp;
1948	break;	1166	break;
1949	}	1167	}
1950	}	1168	}
1951	}	1169	}
1952	}	1170	}
1953		1171
1954	if (middle == floor)	1172	if (middle == floor)
1955	middle = blank_face;	1173	middle = 0;
1956		1174
1957	if (top == middle)	1175	if (top == middle)
1958	middle = blank_face;	1176	middle = 0;
1959		1177
1960	faces [0] = top; faces_obj [0] = top != blank_face ? top_obj : 0;	1178	#if 0
1961	faces [1] = middle; faces_obj [1] = middle != blank_face ? middle_obj : 0;	1179	faces_obj [0] = top;
1962	faces [2] = floor; faces_obj [2] = floor != blank_face ? floor_obj : 0;	1180	faces_obj [1] = middle;
		1181	faces_obj [2] = floor;
		1182	#endif
1963	}	1183	}
1964		1184
1965	void	1185	uint64
1966	set_map_reset_time (maptile *map)	1186	mapspace::volume () const
1967	{	1187	{
1968	int timeout = map->reset_timeout;	1188	uint64 vol = 0;
1969		1189
1970	if (timeout <= 0)	1190	for (object *op = top; op && !op->flag [FLAG_NO_PICK]; op = op->below)
1971	timeout = MAP_DEFAULTRESET;	1191	vol += op->volume ();
1972	if (timeout >= MAP_MAXRESET)
1973	timeout = MAP_MAXRESET;
1974		1192
1975	map->reset_time = time (0) + timeout;	1193	return vol;
1976	}	1194	}
1977		1195
1978	/* this updates the orig_map->tile_map[tile_num] value after loading	1196	bool
1979	* the map. It also takes care of linking back the freshly loaded	1197	maptile::tile_available (int dir, bool load)
1980	* 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
1982	* so that it is easier for calling functions to verify success.
1983	*/
1984
1985	static maptile *
1986	load_and_link_tiled_map (maptile *orig_map, int tile_num)
1987	{	1198	{
1988	int dest_tile = (tile_num + 2) % 4;	1199	if (!tile_path[dir])
1989	char *path = path_combine_and_normalize (orig_map->path, orig_map->tile_path[tile_num]);	1200	return 0;
1990		1201
1991	orig_map->tile_map[tile_num] = ready_map_name (path, 0);	1202	if (tile_map[dir] && (!load || tile_map[dir]->in_memory == MAP_IN_MEMORY))
		1203	return 1;
1992		1204
1993	/* need to do a strcmp here as the orig_map->path is not a shared string */	1205	if ((tile_map[dir] = find_async (tile_path[dir], this, load)))
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))	1206	return 1;
1995	orig_map->tile_map[tile_num]->tile_map[dest_tile] = orig_map;
1996		1207
1997	return orig_map->tile_map[tile_num];	1208	return 0;
1998	}	1209	}
1999		1210
2000	/* this returns TRUE if the coordinates (x,y) are out of	1211	/* this returns TRUE if the coordinates (x,y) are out of
2001	* map m. This function also takes into account any	1212	* map m. This function also takes into account any
2002	* tiling considerations, loading adjacant maps as needed.	1213	* tiling considerations, loading adjacant maps as needed.
2003	* This is the function should always be used when it	1214	* This is the function should always be used when it
2004	* necessary to check for valid coordinates.	1215	* necessary to check for valid coordinates.
2005	* This function will recursively call itself for the	1216	* This function will recursively call itself for the
2006	* tiled maps.	1217	* tiled maps.
2007	*
2008	*
2009	*/	1218	*/
2010	int	1219	int
2011	out_of_map (maptile *m, int x, int y)	1220	out_of_map (maptile *m, int x, int y)
2012	{	1221	{
2013	/* If we get passed a null map, this is obviously the	1222	/* If we get passed a null map, this is obviously the
…		…
2017	if (!m)	1226	if (!m)
2018	return 0;	1227	return 0;
2019		1228
2020	if (x < 0)	1229	if (x < 0)
2021	{	1230	{
2022	if (!m->tile_path[3])	1231	if (!m->tile_available (3))
2023	return 1;	1232	return 1;
2024		1233
2025	if (!m->tile_map[3] || m->tile_map[3]->in_memory != MAP_IN_MEMORY)
2026	load_and_link_tiled_map (m, 3);
2027
2028	return (out_of_map (m->tile_map[3], x + m->tile_map[3]->width, y));	1234	return out_of_map (m->tile_map[3], x + m->tile_map[3]->width, y);
2029	}	1235	}
2030		1236
2031	if (x >= m->width)	1237	if (x >= m->width)
2032	{	1238	{
2033	if (!m->tile_path[1])	1239	if (!m->tile_available (1))
2034	return 1;	1240	return 1;
2035		1241
2036	if (!m->tile_map[1] || m->tile_map[1]->in_memory != MAP_IN_MEMORY)
2037	load_and_link_tiled_map (m, 1);
2038
2039	return (out_of_map (m->tile_map[1], x - m->width, y));	1242	return out_of_map (m->tile_map[1], x - m->width, y);
2040	}	1243	}
2041		1244
2042	if (y < 0)	1245	if (y < 0)
2043	{	1246	{
2044	if (!m->tile_path[0])	1247	if (!m->tile_available (0))
2045	return 1;	1248	return 1;
2046		1249
2047	if (!m->tile_map[0] || m->tile_map[0]->in_memory != MAP_IN_MEMORY)
2048	load_and_link_tiled_map (m, 0);
2049
2050	return (out_of_map (m->tile_map[0], x, y + m->tile_map[0]->height));	1250	return out_of_map (m->tile_map[0], x, y + m->tile_map[0]->height);
2051	}	1251	}
2052		1252
2053	if (y >= m->height)	1253	if (y >= m->height)
2054	{	1254	{
2055	if (!m->tile_path[2])	1255	if (!m->tile_available (2))
2056	return 1;	1256	return 1;
2057		1257
2058	if (!m->tile_map[2] || m->tile_map[2]->in_memory != MAP_IN_MEMORY)
2059	load_and_link_tiled_map (m, 2);
2060
2061	return (out_of_map (m->tile_map[2], x, y - m->height));	1258	return out_of_map (m->tile_map[2], x, y - m->height);
2062	}	1259	}
2063		1260
2064	/* Simple case - coordinates are within this local	1261	/* Simple case - coordinates are within this local
2065	* map.	1262	* map.
2066	*/	1263	*/
…		…
2069		1266
2070	/* This is basically the same as out_of_map above, but	1267	/* This is basically the same as out_of_map above, but
2071	* instead we return NULL if no map is valid (coordinates	1268	* instead we return NULL if no map is valid (coordinates
2072	* out of bounds and no tiled map), otherwise it returns	1269	* out of bounds and no tiled map), otherwise it returns
2073	* the map as that the coordinates are really on, and	1270	* the map as that the coordinates are really on, and
2074	* updates x and y to be the localized coordinates.	1271	* updates x and y to be the localised coordinates.
2075	* Using this is more efficient of calling out_of_map	1272	* Using this is more efficient of calling out_of_map
2076	* and then figuring out what the real map is	1273	* and then figuring out what the real map is
2077	*/	1274	*/
2078	maptile *	1275	maptile *
2079	get_map_from_coord (maptile *m, sint16 * x, sint16 * y)	1276	maptile::xy_find (sint16 &x, sint16 &y)
2080	{	1277	{
2081
2082	if (*x < 0)	1278	if (x < 0)
2083	{	1279	{
2084	if (!m->tile_path[3])	1280	if (!tile_available (3))
2085	return 0;	1281	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		1282
2089	*x += m->tile_map[3]->width;	1283	x += tile_map[3]->width;
2090	return (get_map_from_coord (m->tile_map[3], x, y));	1284	return tile_map[3]->xy_find (x, y);
2091	}	1285	}
2092		1286
2093	if (*x >= m->width)	1287	if (x >= width)
2094	{	1288	{
2095	if (!m->tile_path[1])	1289	if (!tile_available (1))
2096	return 0;	1290	return 0;
2097		1291
2098	if (!m->tile_map[1] || m->tile_map[1]->in_memory != MAP_IN_MEMORY)
2099	load_and_link_tiled_map (m, 1);
2100
2101	*x -= m->width;	1292	x -= width;
2102	return (get_map_from_coord (m->tile_map[1], x, y));	1293	return tile_map[1]->xy_find (x, y);
2103	}	1294	}
2104		1295
2105	if (*y < 0)	1296	if (y < 0)
2106	{	1297	{
2107	if (!m->tile_path[0])	1298	if (!tile_available (0))
2108	return 0;	1299	return 0;
2109		1300
2110	if (!m->tile_map[0] || m->tile_map[0]->in_memory != MAP_IN_MEMORY)
2111	load_and_link_tiled_map (m, 0);
2112
2113	*y += m->tile_map[0]->height;	1301	y += tile_map[0]->height;
2114	return (get_map_from_coord (m->tile_map[0], x, y));	1302	return tile_map[0]->xy_find (x, y);
2115	}	1303	}
2116		1304
2117	if (*y >= m->height)	1305	if (y >= height)
2118	{	1306	{
2119	if (!m->tile_path[2])	1307	if (!tile_available (2))
2120	return 0;	1308	return 0;
2121		1309
2122	if (!m->tile_map[2] || m->tile_map[2]->in_memory != MAP_IN_MEMORY)
2123	load_and_link_tiled_map (m, 2);
2124
2125	*y -= m->height;	1310	y -= height;
2126	return (get_map_from_coord (m->tile_map[2], x, y));	1311	return tile_map[2]->xy_find (x, y);
2127	}	1312	}
2128		1313
2129	/* Simple case - coordinates are within this local	1314	/* Simple case - coordinates are within this local
2130	* map.	1315	* map.
2131	*/	1316	*/
2132
2133	return m;	1317	return this;
2134	}	1318	}
2135		1319
2136	/**	1320	/**
2137	* Return whether map2 is adjacent to map1. If so, store the distance from	1321	* Return whether map2 is adjacent to map1. If so, store the distance from
2138	* map1 to map2 in dx/dy.	1322	* map1 to map2 in dx/dy.
2139	*/	1323	*/
2140	static int	1324	int
2141	adjacent_map (const maptile *map1, const maptile *map2, int *dx, int *dy)	1325	adjacent_map (const maptile *map1, const maptile *map2, int *dx, int *dy)
2142	{	1326	{
2143	if (!map1 || !map2)	1327	if (!map1 || !map2)
2144	return 0;	1328	return 0;
2145		1329
		1330	//TODO: this doesn't actually check correctly when intermediate maps are not loaded
		1331	//fix: compare paths instead (this is likely faster, too!)
2146	if (map1 == map2)	1332	if (map1 == map2)
2147	{	1333	{
2148	*dx = 0;	1334	*dx = 0;
2149	*dy = 0;	1335	*dy = 0;
2150
2151	}	1336	}
2152	else if (map1->tile_map[0] == map2)	1337	else if (map1->tile_map[0] == map2)
2153	{ /* up */	1338	{ /* up */
2154	*dx = 0;	1339	*dx = 0;
2155	*dy = -map2->height;	1340	*dy = -map2->height;
…		…
2166	}	1351	}
2167	else if (map1->tile_map[3] == map2)	1352	else if (map1->tile_map[3] == map2)
2168	{ /* left */	1353	{ /* left */
2169	*dx = -map2->width;	1354	*dx = -map2->width;
2170	*dy = 0;	1355	*dy = 0;
2171
2172	}	1356	}
2173	else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[1] == map2)	1357	else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[1] == map2)
2174	{ /* up right */	1358	{ /* up right */
2175	*dx = map1->tile_map[0]->width;	1359	*dx = map1->tile_map[0]->width;
2176	*dy = -map1->tile_map[0]->height;	1360	*dy = -map1->tile_map[0]->height;
…		…
2207	}	1391	}
2208	else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[2] == map2)	1392	else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[2] == map2)
2209	{ /* left down */	1393	{ /* left down */
2210	*dx = -map1->tile_map[3]->width;	1394	*dx = -map1->tile_map[3]->width;
2211	*dy = map1->tile_map[3]->height;	1395	*dy = map1->tile_map[3]->height;
2212
2213	}	1396	}
2214	else	1397	else
2215	{ /* not "adjacent" enough */
2216	return 0;	1398	return 0;
2217	}
2218		1399
2219	return 1;	1400	return 1;
		1401	}
		1402
		1403	maptile *
		1404	maptile::xy_load (sint16 &x, sint16 &y)
		1405	{
		1406	maptile *map = xy_find (x, y);
		1407
		1408	if (map)
		1409	map->load_sync ();
		1410
		1411	return map;
		1412	}
		1413
		1414	maptile *
		1415	get_map_from_coord (maptile *m, sint16 *x, sint16 *y)
		1416	{
		1417	return m->xy_load (*x, *y);
2220	}	1418	}
2221		1419
2222	/* From map.c	1420	/* From map.c
2223	* This is used by get_player to determine where the other	1421	* This is used by get_player to determine where the other
2224	* creature is. get_rangevector takes into account map tiling,	1422	* creature is. get_rangevector takes into account map tiling,
2225	* so you just can not look the the map coordinates and get the	1423	* so you just can not look the the map coordinates and get the
2226	* righte value. distance_x/y are distance away, which	1424	* righte value. distance_x/y are distance away, which
2227	* can be negativbe. direction is the crossfire direction scheme	1425	* can be negative. direction is the crossfire direction scheme
2228	* that the creature should head. part is the part of the	1426	* that the creature should head. part is the part of the
2229	* monster that is closest.	1427	* monster that is closest.
2230	*	1428	*
2231	* get_rangevector looks at op1 and op2, and fills in the	1429	* get_rangevector looks at op1 and op2, and fills in the
2232	* structure for op1 to get to op2.	1430	* structure for op1 to get to op2.
…		…
2237	* be unexpected	1435	* be unexpected
2238	*	1436	*
2239	* currently, the only flag supported (0x1) is don't translate for	1437	* currently, the only flag supported (0x1) is don't translate for
2240	* closest body part of 'op1'	1438	* closest body part of 'op1'
2241	*/	1439	*/
2242
2243	void	1440	void
2244	get_rangevector (object *op1, object *op2, rv_vector * retval, int flags)	1441	get_rangevector (object *op1, object *op2, rv_vector * retval, int flags)
2245	{	1442	{
2246	if (!adjacent_map (op1->map, op2->map, &retval->distance_x, &retval->distance_y))	1443	if (!adjacent_map (op1->map, op2->map, &retval->distance_x, &retval->distance_y))
2247	{	1444	{
2248	/* be conservative and fill in _some_ data */	1445	/* be conservative and fill in _some_ data */
2249	retval->distance = 100000;	1446	retval->distance = 10000;
2250	retval->distance_x = 32767;	1447	retval->distance_x = 10000;
2251	retval->distance_y = 32767;	1448	retval->distance_y = 10000;
2252	retval->direction = 0;	1449	retval->direction = 0;
2253	retval->part = 0;	1450	retval->part = 0;
2254	}	1451	}
2255	else	1452	else
2256	{	1453	{
…		…
2261		1458
2262	best = op1;	1459	best = op1;
2263	/* If this is multipart, find the closest part now */	1460	/* If this is multipart, find the closest part now */
2264	if (!(flags & 0x1) && op1->more)	1461	if (!(flags & 0x1) && op1->more)
2265	{	1462	{
2266	object *tmp;
2267	int best_distance = retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y, tmpi;	1463	int best_distance = retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y, tmpi;
2268		1464
2269	/* we just take the offset of the piece to head to figure	1465	/* we just take the offset of the piece to head to figure
2270	* distance instead of doing all that work above again	1466	* distance instead of doing all that work above again
2271	* since the distance fields we set above are positive in the	1467	* since the distance fields we set above are positive in the
2272	* same axis as is used for multipart objects, the simply arithmetic	1468	* same axis as is used for multipart objects, the simply arithmetic
2273	* below works.	1469	* below works.
2274	*/	1470	*/
2275	for (tmp = op1->more; tmp != NULL; tmp = tmp->more)	1471	for (object *tmp = op1->more; tmp; tmp = tmp->more)
2276	{	1472	{
2277	tmpi = (op1->x - tmp->x + retval->distance_x) * (op1->x - tmp->x + retval->distance_x) +	1473	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);	1474	(op1->y - tmp->y + retval->distance_y) * (op1->y - tmp->y + retval->distance_y);
2279	if (tmpi < best_distance)	1475	if (tmpi < best_distance)
2280	{	1476	{
2281	best_distance = tmpi;	1477	best_distance = tmpi;
2282	best = tmp;	1478	best = tmp;
2283	}	1479	}
2284	}	1480	}
		1481
2285	if (best != op1)	1482	if (best != op1)
2286	{	1483	{
2287	retval->distance_x += op1->x - best->x;	1484	retval->distance_x += op1->x - best->x;
2288	retval->distance_y += op1->y - best->y;	1485	retval->distance_y += op1->y - best->y;
2289	}	1486	}
2290	}	1487	}
		1488
2291	retval->part = best;	1489	retval->part = best;
2292	retval->distance = isqrt (retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y);	1490	retval->distance = upos_max (abs (retval->distance_x), abs (retval->distance_y));
2293	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);	1491	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);
2294	}	1492	}
2295	}	1493	}
2296		1494
2297	/* this is basically the same as get_rangevector above, but instead of	1495	/* 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	1500	* 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	1501	* 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	1502	* for something in the future. Also, since no object is pasted, the best
2305	* field of the rv_vector is set to NULL.	1503	* field of the rv_vector is set to NULL.
2306	*/	1504	*/
2307
2308	void	1505	void
2309	get_rangevector_from_mapcoord (const maptile *m, int x, int y, const object *op2, rv_vector * retval, int flags)	1506	get_rangevector_from_mapcoord (const maptile *m, int x, int y, const object *op2, rv_vector *retval, int flags)
2310	{	1507	{
2311	if (!adjacent_map (m, op2->map, &retval->distance_x, &retval->distance_y))	1508	if (!adjacent_map (m, op2->map, &retval->distance_x, &retval->distance_y))
2312	{	1509	{
2313	/* be conservative and fill in _some_ data */	1510	/* be conservative and fill in _some_ data */
2314	retval->distance = 100000;	1511	retval->distance = 100000;
…		…
2321	{	1518	{
2322	retval->distance_x += op2->x - x;	1519	retval->distance_x += op2->x - x;
2323	retval->distance_y += op2->y - y;	1520	retval->distance_y += op2->y - y;
2324		1521
2325	retval->part = NULL;	1522	retval->part = NULL;
2326	retval->distance = isqrt (retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y);	1523	retval->distance = idistance (retval->distance_x, retval->distance_y);
2327	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);	1524	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);
2328	}	1525	}
2329	}	1526	}
2330		1527
2331	/* Returns true of op1 and op2 are effectively on the same map	1528	/* 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	1529	* (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	1530	* op1 to op2, so if the tiled maps are asymetric and op2 has a path
2334	* to op1, this will still return false.	1531	* to op1, this will still return false.
2335	* Note we only look one map out to keep the processing simple	1532	* Note we only look one map out to keep the processing simple
2336	* and efficient. This could probably be a macro.	1533	* and efficient. This could probably be a macro.
2337	* MSW 2001-08-05	1534	* MSW 2001-08-05
2338	*/	1535	*/
…		…
2351	op->remove ();	1548	op->remove ();
2352		1549
2353	return insert_ob_in_map_at (op, this, originator, flags, x, y);	1550	return insert_ob_in_map_at (op, this, originator, flags, x, y);
2354	}	1551	}
2355		1552
		1553	region *
		1554	maptile::region (int x, int y) const
		1555	{
		1556	if (regions
		1557	&& regionmap
		1558	&& !OUT_OF_REAL_MAP (this, x, y))
		1559	if (struct region *reg = regionmap [regions [y * width + x]])
		1560	return reg;
		1561
		1562	if (default_region)
		1563	return default_region;
		1564
		1565	return ::region::default_region ();
		1566	}
		1567
		1568	/* picks a random object from a style map.
		1569	* Redone by MSW so it should be faster and not use static
		1570	* variables to generate tables.
		1571	*/
		1572	object *
		1573	maptile::pick_random_object () const
		1574	{
		1575	/* while returning a null object will result in a crash, that
		1576	* is actually preferable to an infinite loop. That is because
		1577	* most servers will automatically restart in case of crash.
		1578	* Change the logic on getting the random space - shouldn't make
		1579	* any difference, but this seems clearer to me.
		1580	*/
		1581	for (int i = 1000; --i;)
		1582	{
		1583	object *pick = at (rndm (width), rndm (height)).bot;
		1584
		1585	// do not prefer big monsters just because they are big.
		1586	if (pick && pick->head_ () == pick)
		1587	return pick->head_ ();
		1588	}
		1589
		1590	// instead of crashing in the unlikely(?) case, try to return *something*
		1591	return get_archetype ("blocked");
		1592	}
		1593
		1594	void
		1595	maptile::play_sound (faceidx sound, int x, int y) const
		1596	{
		1597	if (!sound)
		1598	return;
		1599
		1600	for_all_players (pl)
		1601	if (pl->observe->map == this)
		1602	if (client *ns = pl->ns)
		1603	{
		1604	int dx = x - pl->ob->x;
		1605	int dy = y - pl->ob->y;
		1606
		1607	int distance = idistance (dx, dy);
		1608
		1609	if (distance <= MAX_SOUND_DISTANCE)
		1610	ns->play_sound (sound, dx, dy);
		1611	}
		1612	}
		1613

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