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Comparing deliantra/server/common/map.C (file contents):
Revision 1.49 by root, Mon Dec 25 14:54:44 2006 UTC vs.
Revision 1.63 by root, Mon Jan 1 00:41:02 2007 UTC

…		…
19	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	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 at <crossfire@schmorp.de>
22	*/	22	*/
23		23
24
25	#include <global.h>	24	#include <global.h>
26	#include <funcpoint.h>	25	#include <funcpoint.h>
27		26
28	#include <loader.h>	27	#include <loader.h>
29	#include <unistd.h>	28	#include <unistd.h>
30		29
31	#include "path.h"	30	#include "path.h"
32
33	/*
34	* Returns the maptile which has a name matching the given argument.
35	* return NULL if no match is found.
36	*/
37	maptile *
38	has_been_loaded (const char *name)
39	{
40	maptile *map;
41
42	if (!name || !*name)
43	return 0;
44
45	for (map = first_map; map; map = map->next)
46	if (!strcmp (name, map->path))
47	break;
48
49	return (map);
50	}
51		31
52	/*	32	/*
53	* This makes a path absolute outside the world of Crossfire.	33	* This makes a path absolute outside the world of Crossfire.
54	* In other words, it prepends LIBDIR/MAPDIR/ to the given path	34	* In other words, it prepends LIBDIR/MAPDIR/ to the given path
55	* and returns the pointer to a static array containing the result.	35	* and returns the pointer to a static array containing the result.
56	* it really should be called create_mapname	36	* it really should be called create_mapname
57	*/	37	*/
58
59	const char *	38	const char *
60	create_pathname (const char *name)	39	create_pathname (const char *name)
61	{	40	{
62	static char buf[MAX_BUF];	41	static char buf[8192];
63
64	/* Why? having extra / doesn't confuse unix anyplace? Dependancies
65	* someplace else in the code? msw 2-17-97
66	*/
67	if (*name == '/')
68	sprintf (buf, "%s/%s%s", settings.datadir, settings.mapdir, name);
69	else
70	sprintf (buf, "%s/%s/%s", settings.datadir, settings.mapdir, name);	42	snprintf (buf, sizeof (buf), "%s/%s/%s", settings.datadir, settings.mapdir, name);
71	return (buf);	43	return buf;
72	}	44	}
73
74	/*
75	* same as create_pathname, but for the overlay maps.
76	*/
77
78	const char *
79	create_overlay_pathname (const char *name)
80	{
81	static char buf[MAX_BUF];
82
83	/* Why? having extra / doesn't confuse unix anyplace? Dependancies
84	* someplace else in the code? msw 2-17-97
85	*/
86	if (*name == '/')
87	sprintf (buf, "%s/%s%s", settings.localdir, settings.mapdir, name);
88	else
89	sprintf (buf, "%s/%s/%s", settings.localdir, settings.mapdir, name);
90	return (buf);
91	}
92
93	/*
94	* same as create_pathname, but for the template maps.
95	*/
96
97	const char *
98	create_template_pathname (const char *name)
99	{
100	static char buf[MAX_BUF];
101
102	/* Why? having extra / doesn't confuse unix anyplace? Dependancies
103	* someplace else in the code? msw 2-17-97
104	*/
105	if (*name == '/')
106	sprintf (buf, "%s/%s%s", settings.localdir, settings.templatedir, name);
107	else
108	sprintf (buf, "%s/%s/%s", settings.localdir, settings.templatedir, name);
109	return (buf);
110	}
111
112	/*
113	* This makes absolute path to the itemfile where unique objects
114	* will be saved. Converts '/' to '@'. I think it's essier maintain
115	* files than full directory structure, but if this is problem it can
116	* be changed.
117	*/
118	static const char *
119	create_items_path (const char *s)
120	{
121	static char buf[MAX_BUF];
122	char *t;
123
124	if (*s == '/')
125	s++;
126
127	sprintf (buf, "%s/%s/", settings.localdir, settings.uniquedir);
128
129	for (t = buf + strlen (buf); *s; s++, t++)
130	if (*s == '/')
131	*t = '@';
132	else
133	*t = *s;
134	*t = 0;
135	return (buf);
136	}
137
138		45
139	/*	46	/*
140	* This function checks if a file with the given path exists.	47	* This function checks if a file with the given path exists.
141	* -1 is returned if it fails, otherwise the mode of the file	48	* -1 is returned if it fails, otherwise the mode of the file
142	* is returned.	49	* is returned.
…		…
149	* the rest of the code only cares that the file is readable.	56	* the rest of the code only cares that the file is readable.
150	* when the editor goes away, the call to stat should probably be	57	* when the editor goes away, the call to stat should probably be
151	* replaced by an access instead (similar to the windows one, but	58	* replaced by an access instead (similar to the windows one, but
152	* that seems to be missing the prepend_dir processing	59	* that seems to be missing the prepend_dir processing
153	*/	60	*/
154
155	int	61	int
156	check_path (const char *name, int prepend_dir)	62	check_path (const char *name, int prepend_dir)
157	{	63	{
158	char buf[MAX_BUF];	64	char buf[MAX_BUF];
159		65
…		…
185	if ((statbuf.st_mode & S_IWGRP && getegid () == statbuf.st_gid) ||	91	if ((statbuf.st_mode & S_IWGRP && getegid () == statbuf.st_gid) ||
186	(statbuf.st_mode & S_IWUSR && geteuid () == statbuf.st_uid) || (statbuf.st_mode & S_IWOTH))	92	(statbuf.st_mode & S_IWUSR && geteuid () == statbuf.st_uid) || (statbuf.st_mode & S_IWOTH))
187	mode |= 2;	93	mode |= 2;
188		94
189	return (mode);	95	return (mode);
190	}
191
192	/*
193	* Prints out debug-information about a map.
194	* Dumping these at llevError doesn't seem right, but is
195	* necessary to make sure the information is in fact logged.
196	*/
197
198	void
199	dump_map (const maptile *m)
200	{
201	LOG (llevError, "Map %s status: %d.\n", m->path, m->in_memory);
202	LOG (llevError, "Size: %dx%d Start: %d,%d\n", m->width, m->height, m->enter_x, m->enter_y);
203
204	if (m->msg != NULL)
205	LOG (llevError, "Message:\n%s", m->msg);
206
207	if (m->maplore != NULL)
208	LOG (llevError, "Lore:\n%s", m->maplore);
209
210	if (m->tmpname != NULL)
211	LOG (llevError, "Tmpname: %s\n", m->tmpname);
212
213	LOG (llevError, "Difficulty: %d\n", m->difficulty);
214	LOG (llevError, "Darkness: %d\n", m->darkness);
215	}
216
217	/*
218	* Prints out debug-information about all maps.
219	* This basically just goes through all the maps and calls
220	* dump_map on each one.
221	*/
222
223	void
224	dump_all_maps (void)
225	{
226	maptile *m;
227
228	for (m = first_map; m; m = m->next)
229	dump_map (m);
230	}	96	}
231		97
232	/* This rolls up wall, blocks_magic, blocks_view, etc, all into	98	/* This rolls up wall, blocks_magic, blocks_view, etc, all into
233	* one function that just returns a P_.. value (see map.h)	99	* one function that just returns a P_.. value (see map.h)
234	* it will also do map translation for tiled maps, returning	100	* it will also do map translation for tiled maps, returning
…		…
240	* don't expect to insert/remove anything from those spaces.	106	* don't expect to insert/remove anything from those spaces.
241	*/	107	*/
242	int	108	int
243	get_map_flags (maptile *oldmap, maptile **newmap, sint16 x, sint16 y, sint16 *nx, sint16 *ny)	109	get_map_flags (maptile *oldmap, maptile **newmap, sint16 x, sint16 y, sint16 *nx, sint16 *ny)
244	{	110	{
245	sint16 newx, newy;
246	int retval = 0;
247	maptile *mp;
248
249	newx = x;	111	sint16 newx = x;
250	newy = y;	112	sint16 newy = y;
251		113
252	mp = get_map_from_coord (oldmap, &newx, &newy);	114	maptile *mp = get_map_from_coord (oldmap, &newx, &newy);
253		115
254	if (!mp)	116	if (!mp)
255	return P_OUT_OF_MAP;	117	return P_OUT_OF_MAP;
256
257	if (mp != oldmap)
258	retval |= P_NEW_MAP;
259		118
260	if (newmap) *newmap = mp;	119	if (newmap) *newmap = mp;
261	if (nx) *nx = newx;	120	if (nx) *nx = newx;
262	if (ny) *ny = newy;	121	if (ny) *ny = newy;
263		122
264	return retval | mp->at (newx, newy).flags ();	123	return mp->at (newx, newy).flags () | (mp != oldmap ? P_NEW_MAP : 0);
265	}	124	}
266		125
267	/*	126	/*
268	* Returns true if the given coordinate is blocked except by the	127	* Returns true if the given coordinate is blocked except by the
269	* object passed is not blocking. This is used with	128	* object passed is not blocking. This is used with
…		…
403	archetype *tmp;	262	archetype *tmp;
404	int flag;	263	int flag;
405	maptile *m1;	264	maptile *m1;
406	sint16 sx, sy;	265	sint16 sx, sy;
407		266
408	if (ob == NULL)	267	if (!ob)
409	{	268	{
410	flag = get_map_flags (m, &m1, x, y, &sx, &sy);	269	flag = get_map_flags (m, &m1, x, y, &sx, &sy);
411	if (flag & P_OUT_OF_MAP)	270	if (flag & P_OUT_OF_MAP)
412	return P_OUT_OF_MAP;	271	return P_OUT_OF_MAP;
413		272
…		…
423	return P_OUT_OF_MAP;	282	return P_OUT_OF_MAP;
424	if (flag & P_IS_ALIVE)	283	if (flag & P_IS_ALIVE)
425	return P_IS_ALIVE;	284	return P_IS_ALIVE;
426		285
427	mapspace &ms = m1->at (sx, sy);	286	mapspace &ms = m1->at (sx, sy);
428
429		287
430	/* find_first_free_spot() calls this function. However, often	288	/* find_first_free_spot() calls this function. However, often
431	* ob doesn't have any move type (when used to place exits)	289	* ob doesn't have any move type (when used to place exits)
432	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.	290	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.
433	*/	291	*/
…		…
449	* into inventory, but just links them. What this does is go through	307	* into inventory, but just links them. What this does is go through
450	* and insert them properly.	308	* and insert them properly.
451	* The object 'container' is the object that contains the inventory.	309	* The object 'container' is the object that contains the inventory.
452	* This is needed so that we can update the containers weight.	310	* This is needed so that we can update the containers weight.
453	*/	311	*/
454
455	void	312	void
456	fix_container (object *container)	313	fix_container (object *container)
457	{	314	{
458	object *tmp = container->inv, *next;	315	object *tmp = container->inv, *next;
459		316
460	container->inv = NULL;	317	container->inv = 0;
461	while (tmp != NULL)	318	while (tmp)
462	{	319	{
463	next = tmp->below;	320	next = tmp->below;
464	if (tmp->inv)	321	if (tmp->inv)
465	fix_container (tmp);	322	fix_container (tmp);
		323
466	(void) insert_ob_in_ob (tmp, container);	324	insert_ob_in_ob (tmp, container);
467	tmp = next;	325	tmp = next;
468	}	326	}
		327
469	/* sum_weight will go through and calculate what all the containers are	328	/* sum_weight will go through and calculate what all the containers are
470	* carrying.	329	* carrying.
471	*/	330	*/
472	sum_weight (container);	331	sum_weight (container);
473	}	332	}
…		…
476	* for objects whose arch says they are multipart yet according to the	335	* for objects whose arch says they are multipart yet according to the
477	* info we have, they only have the head (as would be expected when	336	* info we have, they only have the head (as would be expected when
478	* they are saved). We do have to look for the old maps that did save	337	* they are saved). We do have to look for the old maps that did save
479	* the more sections and not re-add sections for them.	338	* the more sections and not re-add sections for them.
480	*/	339	*/
481		340	void
482	static void	341	maptile::link_multipart_objects ()
483	link_multipart_objects (maptile *m)
484	{	342	{
485	int x, y;	343	if (!spaces)
486	object *tmp, *op, *last, *above;	344	return;
487	archetype *at;
488		345
489	for (x = 0; x < m->width; x++)	346	for (mapspace *ms = spaces + size (); ms-- > spaces; )
490	for (y = 0; y < m->height; y++)	347	for (object *tmp = ms->bot; tmp; )
491	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = above)
492	{	348	{
493	above = tmp->above;	349	object *above = tmp->above;
494		350
495	/* already multipart - don't do anything more */	351	/* already multipart - don't do anything more */
496	if (tmp->head || tmp->more)	352	if (!tmp->head && !tmp->more)
497	continue;	353	{
498
499	/* If there is nothing more to this object, this for loop	354	/* If there is nothing more to this object, this for loop
500	* won't do anything.	355	* won't do anything.
501	*/	356	*/
502	for (at = tmp->arch->more, last = tmp; at != NULL; at = at->more, last = op)	357	archetype *at;
		358	object *last, *op;
		359	for (at = tmp->arch->more, last = tmp;
		360	at;
		361	at = at->more, last = op)
503	{	362	{
504	op = arch_to_object (at);	363	op = arch_to_object (at);
505		364
506	/* update x,y coordinates */	365	/* update x,y coordinates */
507	op->x += tmp->x;	366	op->x += tmp->x;
508	op->y += tmp->y;	367	op->y += tmp->y;
509	op->head = tmp;	368	op->head = tmp;
510	op->map = m;	369	op->map = this;
511	last->more = op;	370	last->more = op;
512	op->name = tmp->name;	371	op->name = tmp->name;
513	op->title = tmp->title;	372	op->title = tmp->title;
		373
514	/* we could link all the parts onto tmp, and then just	374	/* we could link all the parts onto tmp, and then just
515	* call insert_ob_in_map once, but the effect is the same,	375	* call insert_ob_in_map once, but the effect is the same,
516	* as insert_ob_in_map will call itself with each part, and	376	* as insert_ob_in_map will call itself with each part, and
517	* the coding is simpler to just to it here with each part.	377	* the coding is simpler to just to it here with each part.
518	*/	378	*/
519	insert_ob_in_map (op, op->map, tmp, INS_NO_MERGE | INS_ABOVE_FLOOR_ONLY | INS_NO_WALK_ON);	379	insert_ob_in_map (op, op->map, tmp, INS_NO_MERGE | INS_ABOVE_FLOOR_ONLY | INS_NO_WALK_ON);
520	} /* for at = tmp->arch->more */	380	}
521	} /* for objects on this space */	381	}
		382
		383	tmp = above;
		384	}
522	}	385	}
523		386
524	/*	387	/*
525	* Loads (ands parses) the objects into a given map from the specified	388	* Loads (ands parses) the objects into a given map from the specified
526	* file pointer.	389	* file pointer.
527	* mapflags is the same as we get with load_original_map	390	* mapflags is the same as we get with load_original_map
528	*/	391	*/
529	void	392	bool
530	load_objects (maptile *m, object_thawer & fp, int mapflags)	393	maptile::load_objects (object_thawer &thawer)
531	{	394	{
532	int i, j;
533	int unique;	395	int unique;
534	object *op, *prev = NULL, *last_more = NULL, *otmp;	396	object *op, *prev = NULL, *last_more = NULL, *otmp;
535		397
536	op = object::create ();	398	op = object::create ();
537	op->map = m; /* To handle buttons correctly */	399	op->map = this; /* To handle buttons correctly */
538		400
539	while ((i = load_object (fp, op, mapflags)))	401	while (int i = load_object (thawer, op, 0))
540	{	402	{
541	/* if the archetype for the object is null, means that we	403	/* if the archetype for the object is null, means that we
542	* got an invalid object. Don't do anything with it - the game	404	* got an invalid object. Don't do anything with it - the game
543	* or editor will not be able to do anything with it either.	405	* or editor will not be able to do anything with it either.
544	*/	406	*/
…		…
549	}	411	}
550		412
551	switch (i)	413	switch (i)
552	{	414	{
553	case LL_NORMAL:	415	case LL_NORMAL:
554	/* if we are loading an overlay, put the floors on the bottom */
555	if ((QUERY_FLAG (op, FLAG_IS_FLOOR) || QUERY_FLAG (op, FLAG_OVERLAY_FLOOR)) && mapflags & MAP_OVERLAY)
556	insert_ob_in_map (op, m, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ABOVE_FLOOR_ONLY | INS_MAP_LOAD);
557	else
558	insert_ob_in_map (op, m, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ON_TOP | INS_MAP_LOAD);	416	insert_ob_in_map (op, this, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ON_TOP | INS_MAP_LOAD);
559		417
560	if (op->inv)	418	if (op->inv)
561	sum_weight (op);	419	sum_weight (op);
562		420
563	prev = op, last_more = op;	421	prev = op, last_more = op;
564	break;	422	break;
565		423
566	case LL_MORE:	424	case LL_MORE:
567	insert_ob_in_map (op, m, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ABOVE_FLOOR_ONLY);	425	insert_ob_in_map (op, this, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ABOVE_FLOOR_ONLY);
568	op->head = prev, last_more->more = op, last_more = op;	426	op->head = prev, last_more->more = op, last_more = op;
569	break;	427	break;
570	}	428	}
571		429
572	if (mapflags & MAP_STYLE)
573	remove_from_active_list (op);
574
575	op = object::create ();	430	op = object::create ();
576	op->map = m;	431	op->map = this;
577	}
578
579	for (i = 0; i < m->width; i++)
580	{
581	for (j = 0; j < m->height; j++)
582	{
583	unique = 0;
584	/* check for unique items, or unique squares */
585	for (otmp = GET_MAP_OB (m, i, j); otmp; otmp = otmp->above)
586	{
587	if (QUERY_FLAG (otmp, FLAG_UNIQUE) || QUERY_FLAG (otmp, FLAG_OBJ_SAVE_ON_OVL))
588	unique = 1;
589
590	if (!(mapflags & (MAP_OVERLAY | MAP_PLAYER_UNIQUE) || unique))
591	SET_FLAG (otmp, FLAG_OBJ_ORIGINAL);
592	}
593	}
594	}	432	}
595		433
596	op->destroy ();	434	op->destroy ();
597	link_multipart_objects (m);
598	}
599		435
600	/* This saves all the objects on the map in a non destructive fashion.	436	#if 0
601	* Modified by MSW 2001-07-01 to do in a single pass - reduces code,
602	* and we only save the head of multi part objects - this is needed
603	* in order to do map tiling properly.
604	*/
605	void
606	save_objects (maptile *m, object_freezer & fp, object_freezer & fp2, int flag)
607	{
608	int i, j = 0, unique = 0;
609	object *op;
610
611	/* first pass - save one-part objects */
612	for (i = 0; i < m->width; i++)	437	for (i = 0; i < width; i++)
613	for (j = 0; j < m->height; j++)	438	for (j = 0; j < height; j++)
614	{	439	{
615	unique = 0;	440	unique = 0;
616	for (op = m->at (i, j).bot; op; op = op->above)	441	/* check for unique items, or unique squares */
		442	for (otmp = GET_MAP_OB (m, i, j); otmp; otmp = otmp->above)
617	{	443	{
618	if (op->flag [FLAG_IS_FLOOR] && op->flag [FLAG_UNIQUE])	444	if (QUERY_FLAG (otmp, FLAG_UNIQUE) || QUERY_FLAG (otmp, FLAG_OBJ_SAVE_ON_OVL))
619	unique = 1;	445	unique = 1;
620		446
621	if (op->type == PLAYER)	447	if (!(mapflags & (MAP_OVERLAY | MAP_PLAYER_UNIQUE) || unique))
622	continue;	448	SET_FLAG (otmp, FLAG_OBJ_ORIGINAL);
623
624	if (op->head || op->owner)
625	continue;
626
627	if (unique || op->flag [FLAG_UNIQUE])
628	save_object (fp2, op, 3);
629	else if (flag == 0 || (flag == 2 && (!op->flag [FLAG_OBJ_ORIGINAL] && !op->flag [FLAG_UNPAID])))
630	save_object (fp, op, 3);
631	}	449	}
632	}	450	}
		451	#endif
		452
		453	return true;
		454	}
		455
		456	void
		457	maptile::activate ()
		458	{
		459	if (!spaces)
		460	return;
		461
		462	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		463	for (object *op = ms->bot; op; op = op->above)
		464	op->activate_recursive ();
		465	}
		466
		467	void
		468	maptile::deactivate ()
		469	{
		470	if (!spaces)
		471	return;
		472
		473	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		474	for (object *op = ms->bot; op; op = op->above)
		475	op->deactivate_recursive ();
		476	}
		477
		478	bool
		479	maptile::save_objects (object_freezer &freezer, int flags)
		480	{
		481	if (flags & IO_HEADER)
		482	save_header (freezer);
		483
		484	if (!spaces)
		485	return false;
		486
		487	for (int i = 0; i < size (); ++i)
		488	{
		489	int unique = 0;
		490	for (object *op = spaces [i].bot; op; op = op->above)
		491	{
		492	if (op->flag [FLAG_UNIQUE] && op->flag [FLAG_IS_FLOOR])
		493	unique = 1;
		494
		495	if (!op->can_map_save ())
		496	continue;
		497
		498	if (unique || op->flag [FLAG_UNIQUE])
		499	{
		500	if (flags & IO_UNIQUES)
		501	save_object (freezer, op, 1);
		502	}
		503	else if (flags & IO_OBJECTS)
		504	save_object (freezer, op, 1);
		505	}
		506	}
		507
		508	return true;
		509	}
		510
		511	bool
		512	maptile::load_objects (const char *path, bool skip_header)
		513	{
		514	object_thawer thawer (path);
		515
		516	if (!thawer)
		517	return false;
		518
		519	if (skip_header)
		520	for (;;)
		521	{
		522	keyword kw = thawer.get_kv ();
		523
		524	if (kw == KW_end)
		525	break;
		526
		527	thawer.skip_kv (kw);
		528	}
		529
		530	return load_objects (thawer);
		531	}
		532
		533	bool
		534	maptile::save_objects (const char *path, int flags)
		535	{
		536	object_freezer freezer;
		537
		538	if (!save_objects (freezer, flags))
		539	return false;
		540
		541	return freezer.save (path);
633	}	542	}
634		543
635	maptile::maptile ()	544	maptile::maptile ()
636	{	545	{
637	in_memory = MAP_SWAPPED;	546	in_memory = MAP_SWAPPED;
		547
638	/* The maps used to pick up default x and y values from the	548	/* The maps used to pick up default x and y values from the
639	* map archetype. Mimic that behaviour.	549	* map archetype. Mimic that behaviour.
640	*/	550	*/
641	this->width = 16;	551	width = 16;
642	this->height = 16;	552	height = 16;
643	this->reset_timeout = 0;	553	reset_timeout = 0;
644	this->timeout = 300;	554	timeout = 300;
645	this->enter_x = 0;	555	enter_x = 0;
646	this->enter_y = 0;	556	enter_y = 0;
647	/*set part to -1 indicating conversion to weather map not yet done */
648	this->worldpartx = -1;
649	this->worldparty = -1;
650	}	557	}
651		558
652	/*	559	maptile::maptile (int w, int h)
653	* Allocates, initialises, and returns a pointer to a maptile.
654	* Modified to no longer take a path option which was not being
655	* used anyways. MSW 2001-07-01
656	*/
657	maptile *
658	get_linked_map (void)
659	{	560	{
660	maptile *mp, *map = new maptile;	561	in_memory = MAP_SWAPPED;
661		562
662	for (mp = first_map; mp && mp->next; mp = mp->next);	563	width = w;
		564	height = h;
		565	reset_timeout = 0;
		566	timeout = 300;
		567	enter_x = 0;
		568	enter_y = 0;
663		569
664	if (mp == NULL)	570	alloc ();
665	first_map = map;
666	else
667	mp->next = map;
668
669	return map;
670	}	571	}
671		572
672	/*	573	/*
673	* Allocates the arrays contained in a maptile.	574	* Allocates the arrays contained in a maptile.
674	* This basically allocates the dynamic array of spaces for the	575	* This basically allocates the dynamic array of spaces for the
675	* map.	576	* map.
676	*/	577	*/
677	void	578	void
678	maptile::allocate ()	579	maptile::alloc ()
679	{	580	{
680	in_memory = MAP_IN_MEMORY;
681
682	/* Log this condition and free the storage. We could I suppose
683	* realloc, but if the caller is presuming the data will be intact,
684	* that is their poor assumption.
685	*/
686	if (spaces)	581	if (spaces)
687	{
688	LOG (llevError, "allocate_map called with already allocated map (%s)\n", path);
689	free (spaces);
690	}
691
692	spaces = (mapspace *)
693	calloc (1, width * height * sizeof (mapspace));
694
695	if (!spaces)
696	fatal (OUT_OF_MEMORY);
697	}
698
699	/* Create and returns a map of the specific size. Used
700	* in random map code and the editor.
701	*/
702	maptile *
703	get_empty_map (int sizex, int sizey)
704	{
705	maptile *m = get_linked_map ();
706
707	m->width = sizex;
708	m->height = sizey;
709	m->in_memory = MAP_SWAPPED;
710	m->allocate ();
711
712	return m;	582	return;
		583
		584	spaces = salloc0<mapspace> (size ());
713	}	585	}
714		586
715	/* Takes a string from a map definition and outputs a pointer to the array of shopitems	587	/* Takes a string from a map definition and outputs a pointer to the array of shopitems
716	* corresponding to that string. Memory is allocated for this, it must be freed	588	* corresponding to that string. Memory is allocated for this, it must be freed
717	* at a later date.	589	* at a later date.
718	* Called by parse_map_headers below.	590	* Called by parse_map_headers below.
719	*/	591	*/
720
721	static shopitems *	592	static shopitems *
722	parse_shop_string (const char *input_string)	593	parse_shop_string (const char *input_string)
723	{	594	{
724	char *shop_string, *p, *q, *next_semicolon, *next_colon;	595	char *shop_string, *p, *q, *next_semicolon, *next_colon;
725	shopitems *items = NULL;	596	shopitems *items = NULL;
…		…
734	p = strchr (p, ';');	605	p = strchr (p, ';');
735	number_of_entries++;	606	number_of_entries++;
736	if (p)	607	if (p)
737	p++;	608	p++;
738	}	609	}
		610
739	p = shop_string;	611	p = shop_string;
740	strip_endline (p);	612	strip_endline (p);
741	items = new shopitems[number_of_entries + 1];	613	items = new shopitems[number_of_entries + 1];
742	for (i = 0; i < number_of_entries; i++)	614	for (i = 0; i < number_of_entries; i++)
743	{	615	{
744	if (!p)	616	if (!p)
745	{	617	{
746	LOG (llevError, "parse_shop_string: I seem to have run out of string, that shouldn't happen.\n");	618	LOG (llevError, "parse_shop_string: I seem to have run out of string, that shouldn't happen.\n");
747	break;	619	break;
748	}	620	}
		621
749	next_semicolon = strchr (p, ';');	622	next_semicolon = strchr (p, ';');
750	next_colon = strchr (p, ':');	623	next_colon = strchr (p, ':');
751	/* if there is a stregth specified, figure out what it is, we'll need it soon. */	624	/* if there is a stregth specified, figure out what it is, we'll need it soon. */
752	if (next_colon && (!next_semicolon || next_colon < next_semicolon))	625	if (next_colon && (!next_semicolon || next_colon < next_semicolon))
753	items[i].strength = atoi (strchr (p, ':') + 1);	626	items[i].strength = atoi (strchr (p, ':') + 1);
…		…
780	* the next entry while we're at it, better print a warning	653	* the next entry while we're at it, better print a warning
781	*/	654	*/
782	LOG (llevError, "invalid type %s defined in shopitems in string %s\n", p, input_string);	655	LOG (llevError, "invalid type %s defined in shopitems in string %s\n", p, input_string);
783	}	656	}
784	}	657	}
		658
785	items[i].index = number_of_entries;	659	items[i].index = number_of_entries;
786	if (next_semicolon)	660	if (next_semicolon)
787	p = ++next_semicolon;	661	p = ++next_semicolon;
788	else	662	else
789	p = NULL;	663	p = NULL;
790	}	664	}
		665
791	free (shop_string);	666	free (shop_string);
792	return items;	667	return items;
793	}	668	}
794		669
795	/* opposite of parse string, this puts the string that was originally fed in to	670	/* opposite of parse string, this puts the string that was originally fed in to
…		…
804	for (i = 0; i < m->shopitems[0].index; i++)	679	for (i = 0; i < m->shopitems[0].index; i++)
805	{	680	{
806	if (m->shopitems[i].typenum)	681	if (m->shopitems[i].typenum)
807	{	682	{
808	if (m->shopitems[i].strength)	683	if (m->shopitems[i].strength)
809	{
810	sprintf (tmp, "%s:%d;", m->shopitems[i].name, m->shopitems[i].strength);	684	sprintf (tmp, "%s:%d;", m->shopitems[i].name, m->shopitems[i].strength);
811	}
812	else	685	else
813	sprintf (tmp, "%s;", m->shopitems[i].name);	686	sprintf (tmp, "%s;", m->shopitems[i].name);
814	}	687	}
815	else	688	else
816	{	689	{
817	if (m->shopitems[i].strength)	690	if (m->shopitems[i].strength)
818	{
819	sprintf (tmp, "*:%d;", m->shopitems[i].strength);	691	sprintf (tmp, "*:%d;", m->shopitems[i].strength);
820	}
821	else	692	else
822	sprintf (tmp, "*");	693	sprintf (tmp, "*");
823	}	694	}
		695
824	strcat (output_string, tmp);	696	strcat (output_string, tmp);
825	}	697	}
826	}	698	}
827		699
828	/* This loads the header information of the map. The header	700	/* This loads the header information of the map. The header
…		…
833	* put all the stuff in the map object so that names actually make	705	* put all the stuff in the map object so that names actually make
834	* sense.	706	* sense.
835	* This could be done in lex (like the object loader), but I think	707	* This could be done in lex (like the object loader), but I think
836	* currently, there are few enough fields this is not a big deal.	708	* currently, there are few enough fields this is not a big deal.
837	* MSW 2001-07-01	709	* MSW 2001-07-01
838	* return 0 on success, 1 on failure.
839	*/	710	*/
840		711	bool
841	static int	712	maptile::load_header (object_thawer &thawer)
842	load_map_header (object_thawer & fp, maptile *m)
843	{	713	{
844	char buf[HUGE_BUF], msgbuf[HUGE_BUF], maplorebuf[HUGE_BUF], *key = NULL, *value, *end;	714	char buf[HUGE_BUF], msgbuf[HUGE_BUF], maplorebuf[HUGE_BUF], *key = NULL, *value, *end;
845	int msgpos = 0;	715	int msgpos = 0;
846	int maplorepos = 0;	716	int maplorepos = 0;
847		717
848	while (fgets (buf, HUGE_BUF, fp) != NULL)	718	for (;;)
849	{	719	{
850	buf[HUGE_BUF - 1] = 0;	720	keyword kw = thawer.get_kv ();
851	key = buf;
852		721
853	while (isspace (*key))	722	switch (kw)
854	key++;
855
856	if (*key == 0)
857	continue; /* empty line */
858
859	value = strchr (key, ' ');
860
861	if (!value)
862	{	723	{
863	if ((end = strchr (key, '\n')))	724	case KW_EOF:
864	*end = 0;	725	LOG (llevError, "%s: end of file while reading map header, aborting header load.\n", &path);
		726	return false;
		727
		728	case KW_end:
		729	return true;
		730
		731	case KW_msg:
		732	thawer.get_ml (KW_endmsg, msg);
		733	break;
		734
		735	case KW_lore: // CF+ extension
		736	thawer.get_ml (KW_endlore, maplore);
		737	break;
		738
		739	case KW_maplore:
		740	thawer.get_ml (KW_endmaplore, maplore);
		741	break;
		742
		743	case KW_arch:
		744	if (strcmp (thawer.get_str (), "map"))
		745	LOG (llevError, "%s: loading map and got a non 'arch map' line (arch %s), skipping.\n", &path, thawer.get_str ());
		746	break;
		747
		748	case KW_oid:
		749	thawer.get (this, thawer.get_sint32 ());
		750	break;
		751
		752	case KW_file_format_version: break; // nop
		753
		754	case KW_name: thawer.get (name); break;
		755	case KW_attach: thawer.get (attach); break;
		756	case KW_reset_time: thawer.get (reset_time); break;
		757	case KW_shopgreed: thawer.get (shopgreed); break;
		758	case KW_shopmin: thawer.get (shopmin); break;
		759	case KW_shopmax: thawer.get (shopmax); break;
		760	case KW_shoprace: thawer.get (shoprace); break;
		761	case KW_outdoor: thawer.get (outdoor); break;
		762	case KW_temp: thawer.get (temp); break;
		763	case KW_pressure: thawer.get (pressure); break;
		764	case KW_humid: thawer.get (humid); break;
		765	case KW_windspeed: thawer.get (windspeed); break;
		766	case KW_winddir: thawer.get (winddir); break;
		767	case KW_sky: thawer.get (sky); break;
		768
		769	case KW_per_player: thawer.get (per_player); break;
		770	case KW_per_party: thawer.get (per_party); break;
		771
		772	case KW_region: get_region_by_name (thawer.get_str ()); break;
		773	case KW_shopitems: shopitems = parse_shop_string (thawer.get_str ()); break;
		774
		775	// old names new names
		776	case KW_hp: case KW_enter_x: thawer.get (enter_x); break;
		777	case KW_sp: case KW_enter_y: thawer.get (enter_y); break;
		778	case KW_x: case KW_width: thawer.get (width); break;
		779	case KW_y: case KW_height: thawer.get (height); break;
		780	case KW_weight: case KW_reset_timeout: thawer.get (reset_timeout); break;
		781	case KW_value: case KW_swap_time: thawer.get (timeout); break;
		782	case KW_level: case KW_difficulty: thawer.get (difficulty); difficulty = clamp (difficulty, 1, settings.max_level); break;
		783	case KW_invisible: case KW_darkness: thawer.get (darkness); break;
		784	case KW_stand_still: case KW_fixed_resettime: thawer.get (fixed_resettime); break;
		785
		786	case KW_tile_path_1: thawer.get (tile_path [0]); break;
		787	case KW_tile_path_2: thawer.get (tile_path [1]); break;
		788	case KW_tile_path_3: thawer.get (tile_path [2]); break;
		789	case KW_tile_path_4: thawer.get (tile_path [3]); break;
		790
		791	default:
		792	LOG (llevError, "%s: skipping unknown key in map header: %s\n", &path, keyword_str [kw]);
		793	break;
865	}	794	}
866	else
867	{
868	*value = 0;
869	value++;
870	end = strchr (value, '\n');
871
872	while (isspace (*value))
873	{
874	value++;
875
876	if (*value == '\0' || value == end)
877	{
878	/* Nothing but spaces. */
879	value = NULL;
880	break;
881	}
882	}
883	}
884
885	if (!end)
886	{
887	LOG (llevError, "Error loading map header - did not find a newline - perhaps file is truncated? Buf=%s\n", buf);
888	return 1;
889	}
890
891	/* key is the field name, value is what it should be set
892	* to. We've already done the work to null terminate key,
893	* and strip off any leading spaces for both of these.
894	* We have not touched the newline at the end of the line -
895	* these are needed for some values. the end pointer
896	* points to the first of the newlines.
897	* value could be NULL! It would be easy enough to just point
898	* this to "" to prevent cores, but that would let more errors slide
899	* through.
900	*
901	* First check for entries that do not use the value parameter, then
902	* validate that value is given and check for the remaining entries
903	* that use the parameter.
904	*/
905
906	if (!strcmp (key, "msg"))
907	{
908	while (fgets (buf, HUGE_BUF, fp) != NULL)
909	{
910	if (!strcmp (buf, "endmsg\n"))
911	break;
912	else
913	{
914	/* slightly more efficient than strcat */
915	strcpy (msgbuf + msgpos, buf);
916	msgpos += strlen (buf);
917	}
918	}
919	/* There are lots of maps that have empty messages (eg, msg/endmsg
920	* with nothing between). There is no reason in those cases to
921	* keep the empty message. Also, msgbuf contains garbage data
922	* when msgpos is zero, so copying it results in crashes
923	*/
924	if (msgpos != 0)
925	m->msg = strdup (msgbuf);
926	}
927	else if (!strcmp (key, "maplore"))
928	{
929	while (fgets (buf, HUGE_BUF, fp) != NULL)
930	{
931	if (!strcmp (buf, "endmaplore\n"))
932	break;
933	else
934	{
935	/* slightly more efficient than strcat */
936	strcpy (maplorebuf + maplorepos, buf);
937	maplorepos += strlen (buf);
938	}
939	}
940	if (maplorepos != 0)
941	m->maplore = strdup (maplorebuf);
942	}
943	else if (!strcmp (key, "end"))
944	{
945	break;
946	}
947	else if (value == NULL)
948	{
949	LOG (llevError, "Got '%s' line without parameter in map header\n", key);
950	}
951	else if (!strcmp (key, "arch"))
952	{
953	/* This is an oddity, but not something we care about much. */
954	if (strcmp (value, "map\n"))
955	LOG (llevError, "loading map and got a non 'arch map' line(%s %s)?\n", key, value);
956	}
957	else if (!strcmp (key, "name"))
958	{
959	*end = 0;
960	m->name = strdup (value);
961	}
962	/* first strcmp value on these are old names supported
963	* for compatibility reasons. The new values (second) are
964	* what really should be used.
965	*/
966	else if (!strcmp (key, "oid"))
967	fp.get (m, atoi (value));
968	else if (!strcmp (key, "attach"))
969	m->attach = value;
970	else if (!strcmp (key, "hp") || !strcmp (key, "enter_x"))
971	m->enter_x = atoi (value);
972	else if (!strcmp (key, "sp") || !strcmp (key, "enter_y"))
973	m->enter_y = atoi (value);
974	else if (!strcmp (key, "x") || !strcmp (key, "width"))
975	m->width = atoi (value);
976	else if (!strcmp (key, "y") || !strcmp (key, "height"))
977	m->height = atoi (value);
978	else if (!strcmp (key, "weight") || !strcmp (key, "reset_timeout"))
979	m->reset_timeout = atoi (value);
980	else if (!strcmp (key, "value") || !strcmp (key, "swap_time"))
981	m->timeout = atoi (value);
982	else if (!strcmp (key, "level") || !strcmp (key, "difficulty"))
983	m->difficulty = clamp (atoi (value), 1, settings.max_level);
984	else if (!strcmp (key, "invisible") || !strcmp (key, "darkness"))
985	m->darkness = atoi (value);
986	else if (!strcmp (key, "stand_still") || !strcmp (key, "fixed_resettime"))
987	m->fixed_resettime = atoi (value);
988	else if (!strcmp (key, "unique"))
989	m->unique = atoi (value);
990	else if (!strcmp (key, "template"))
991	m->templatemap = atoi (value);
992	else if (!strcmp (key, "region"))
993	m->region = get_region_by_name (value);
994	else if (!strcmp (key, "shopitems"))
995	{
996	*end = 0;
997	m->shopitems = parse_shop_string (value);
998	}
999	else if (!strcmp (key, "shopgreed"))
1000	m->shopgreed = atof (value);
1001	else if (!strcmp (key, "shopmin"))
1002	m->shopmin = atol (value);
1003	else if (!strcmp (key, "shopmax"))
1004	m->shopmax = atol (value);
1005	else if (!strcmp (key, "shoprace"))
1006	{
1007	*end = 0;
1008	m->shoprace = strdup (value);
1009	}
1010	else if (!strcmp (key, "outdoor"))
1011	m->outdoor = atoi (value);
1012	else if (!strcmp (key, "temp"))
1013	m->temp = atoi (value);
1014	else if (!strcmp (key, "pressure"))
1015	m->pressure = atoi (value);
1016	else if (!strcmp (key, "humid"))
1017	m->humid = atoi (value);
1018	else if (!strcmp (key, "windspeed"))
1019	m->windspeed = atoi (value);
1020	else if (!strcmp (key, "winddir"))
1021	m->winddir = atoi (value);
1022	else if (!strcmp (key, "sky"))
1023	m->sky = atoi (value);
1024	else if (!strcmp (key, "nosmooth"))
1025	m->nosmooth = atoi (value);
1026	else if (!strncmp (key, "tile_path_", 10))
1027	{
1028	int tile = atoi (key + 10);
1029
1030	if (tile < 1 || tile > 4)
1031	{
1032	LOG (llevError, "load_map_header: tile location %d out of bounds (%s)\n", tile, m->path);
1033	}
1034	else
1035	{
1036	char *path;
1037
1038	*end = 0;
1039
1040	if (m->tile_path[tile - 1])
1041	{
1042	LOG (llevError, "load_map_header: tile location %d duplicated (%s)\n", tile, m->path);
1043	free (m->tile_path[tile - 1]);
1044	m->tile_path[tile - 1] = NULL;
1045	}
1046
1047	if (check_path (value, 1) != -1)
1048	{
1049	/* The unadorned path works. */
1050	path = value;
1051	}
1052	else
1053	{
1054	/* Try again; it could be a relative exit. */
1055
1056	path = path_combine_and_normalize (m->path, value);
1057
1058	if (check_path (path, 1) == -1)
1059	{
1060	LOG (llevError, "get_map_header: Bad tile path %s %s\n", m->path, value);
1061	path = NULL;
1062	}
1063	}
1064
1065	if (editor)
1066	{
1067	/* Use the value as in the file. */
1068	m->tile_path[tile - 1] = strdup (value);
1069	}
1070	else if (path != NULL)
1071	{
1072	/* Use the normalized value. */
1073	m->tile_path[tile - 1] = strdup (path);
1074	}
1075	} /* end if tile direction (in)valid */
1076	}
1077	else
1078	LOG (llevError, "Got unknown value in map header: %s %s\n", key, value);
1079	}
1080
1081	if (!key || strcmp (key, "end"))
1082	{	795	}
1083	LOG (llevError, "Got premature eof on map header!\n");
1084	return 1;
1085	}
1086		796
1087	return 0;	797	abort ();
1088	}	798	}
1089		799
1090	/*	800	bool
1091	* Opens the file "filename" and reads information about the map	801	maptile::load_header (const char *path)
1092	* from the given file, and stores it in a newly allocated
1093	* maptile. A pointer to this structure is returned, or NULL on failure.
1094	* flags correspond to those in map.h. Main ones used are
1095	* MAP_PLAYER_UNIQUE, in which case we don't do any name changes, and
1096	* MAP_BLOCK, in which case we block on this load. This happens in all
1097	* cases, no matter if this flag is set or not.
1098	* MAP_STYLE: style map - don't add active objects, don't add to server
1099	* managed map list.
1100	*/
1101
1102	maptile *
1103	load_original_map (const char *filename, int flags)
1104	{	802	{
1105	maptile *m;
1106	char pathname[MAX_BUF];
1107
1108	if (flags & MAP_PLAYER_UNIQUE)
1109	strcpy (pathname, filename);
1110	else if (flags & MAP_OVERLAY)
1111	strcpy (pathname, create_overlay_pathname (filename));
1112	else
1113	strcpy (pathname, create_pathname (filename));
1114
1115	LOG (llevDebug, "load_original_map(%x): %s (%s)\n", flags, filename, pathname);
1116
1117	object_thawer thawer (pathname);	803	object_thawer thawer (path);
1118		804
1119	if (!thawer)	805	if (!thawer)
1120	return 0;	806	return false;
1121		807
1122	m = get_linked_map ();	808	return load_header (thawer);
1123
1124	strcpy (m->path, filename);
1125	if (load_map_header (thawer, m))
1126	{
1127	LOG (llevError, "Error loading map header for %s, flags=%d\n", filename, flags);
1128	delete_map (m);
1129	return 0;
1130	}
1131
1132	m->allocate ();
1133
1134	m->in_memory = MAP_LOADING;
1135	load_objects (m, thawer, flags & (MAP_BLOCK | MAP_STYLE));
1136
1137	m->in_memory = MAP_IN_MEMORY;
1138	if (!m->difficulty)
1139	m->difficulty = calculate_difficulty (m);
1140	set_map_reset_time (m);
1141	m->instantiate ();
1142	return (m);
1143	}
1144
1145	/*
1146	* Loads a map, which has been loaded earlier, from file.
1147	* Return the map object we load into (this can change from the passed
1148	* option if we can't find the original map)
1149	*/
1150
1151	static maptile *
1152	load_temporary_map (maptile *m)
1153	{
1154	char buf[MAX_BUF];
1155
1156	if (!m->tmpname)
1157	{
1158	LOG (llevError, "No temporary filename for map %s\n", m->path);
1159	strcpy (buf, m->path);
1160	delete_map (m);
1161	m = load_original_map (buf, 0);
1162	if (m == NULL)
1163	return NULL;
1164	fix_auto_apply (m); /* Chests which open as default */
1165	return m;
1166	}
1167
1168	object_thawer thawer (m->tmpname);
1169
1170	if (!thawer)
1171	{
1172	strcpy (buf, m->path);
1173	delete_map (m);
1174	m = load_original_map (buf, 0);
1175	if (!m)
1176	return NULL;
1177	fix_auto_apply (m); /* Chests which open as default */
1178	return m;
1179	}
1180
1181	if (load_map_header (thawer, m))
1182	{
1183	LOG (llevError, "Error loading map header for %s (%s)\n", m->path, m->tmpname);
1184	delete_map (m);
1185	m = load_original_map (m->path, 0);
1186	return NULL;
1187	}
1188
1189	m->allocate ();
1190
1191	m->in_memory = MAP_LOADING;
1192	load_objects (m, thawer, 0);
1193
1194	m->in_memory = MAP_IN_MEMORY;
1195	INVOKE_MAP (SWAPIN, m);
1196	return m;
1197	}
1198
1199	/*
1200	* Loads a map, which has been loaded earlier, from file.
1201	* Return the map object we load into (this can change from the passed
1202	* option if we can't find the original map)
1203	*/
1204
1205	maptile *
1206	load_overlay_map (const char *filename, maptile *m)
1207	{
1208	char pathname[MAX_BUF];
1209
1210	strcpy (pathname, create_overlay_pathname (filename));
1211
1212	object_thawer thawer (pathname);
1213
1214	if (!thawer)
1215	return m;
1216
1217	if (load_map_header (thawer, m))
1218	{
1219	LOG (llevError, "Error loading map header for overlay %s (%s)\n", m->path, pathname);
1220	delete_map (m);
1221	m = load_original_map (m->path, 0);
1222	return 0;
1223	}
1224	/*m->allocate ();*/
1225
1226	m->in_memory = MAP_LOADING;
1227	load_objects (m, thawer, MAP_OVERLAY);
1228
1229	m->in_memory = MAP_IN_MEMORY;
1230	return m;
1231	}	809	}
1232		810
1233	/******************************************************************************	811	/******************************************************************************
1234	* This is the start of unique map handling code	812	* This is the start of unique map handling code
1235	*****************************************************************************/	813	*****************************************************************************/
1236		814
1237	/* This goes through map 'm' and removed any unique items on the map. */	815	/* This goes through the maptile and removed any unique items on the map. */
1238	static void	816	void
1239	delete_unique_items (maptile *m)	817	maptile::clear_unique_items ()
1240	{	818	{
1241	int i, j, unique;	819	for (int i = 0; i < size (); ++i)
1242	object *op, *next;
1243
1244	for (i = 0; i < m->width; i++)
1245	for (j = 0; j < m->height; j++)
1246	{	820	{
1247	unique = 0;	821	int unique = 0;
1248		822	for (object *op = spaces [i].bot; op; )
1249	for (op = GET_MAP_OB (m, i, j); op; op = next)
1250	{	823	{
1251	next = op->above;	824	object *above = op->above;
1252		825
1253	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))	826	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))
1254	unique = 1;	827	unique = 1;
1255		828
1256	if (op->head == NULL && (QUERY_FLAG (op, FLAG_UNIQUE) || unique))	829	if (op->head == NULL && (QUERY_FLAG (op, FLAG_UNIQUE) || unique))
1257	{	830	{
1258	op->destroy_inv (false);	831	op->destroy_inv (false);
1259	op->destroy ();	832	op->destroy ();
1260	}	833	}
1261	}
1262	}
1263	}
1264		834
1265		835	op = above;
1266	/*
1267	* Loads unique objects from file(s) into the map which is in memory
1268	* m is the map to load unique items into.
1269	*/
1270	static void
1271	load_unique_objects (maptile *m)
1272	{
1273	int count;
1274	char firstname[MAX_BUF];
1275
1276	for (count = 0; count < 10; count++)
1277	{
1278	sprintf (firstname, "%s.v%02d", create_items_path (m->path), count);
1279	if (!access (firstname, R_OK))
1280	break;
1281	}
1282	/* If we get here, we did not find any map */
1283	if (count == 10)
1284	return;
1285
1286	object_thawer thawer (firstname);
1287
1288	if (!thawer)
1289	return;
1290
1291	m->in_memory = MAP_LOADING;
1292	if (m->tmpname == NULL) /* if we have loaded unique items from */
1293	delete_unique_items (m); /* original map before, don't duplicate them */
1294	load_objects (m, thawer, 0);
1295
1296	m->in_memory = MAP_IN_MEMORY;
1297	}
1298
1299
1300	/*
1301	* Saves a map to file. If flag is set, it is saved into the same
1302	* file it was (originally) loaded from. Otherwise a temporary
1303	* filename will be genarated, and the file will be stored there.
1304	* The temporary filename will be stored in the maptileure.
1305	* If the map is unique, we also save to the filename in the map
1306	* (this should have been updated when first loaded)
1307	*/
1308
1309	int
1310	new_save_map (maptile *m, int flag)
1311	{
1312	char filename[MAX_BUF], buf[MAX_BUF], shop[MAX_BUF];
1313	int i;
1314
1315	if (flag && !*m->path)
1316	{
1317	LOG (llevError, "Tried to save map without path.\n");
1318	return -1;
1319	}
1320
1321	if (flag || (m->unique) || (m->templatemap))
1322	{
1323	if (!m->unique && !m->templatemap)
1324	{ /* flag is set */
1325	if (flag == 2)
1326	strcpy (filename, create_overlay_pathname (m->path));
1327	else
1328	strcpy (filename, create_pathname (m->path));
1329	}	836	}
1330	else
1331	strcpy (filename, m->path);
1332
1333	make_path_to_file (filename);
1334	}
1335	else
1336	{	837	}
1337	if (!m->tmpname)	838	}
1338	m->tmpname = tempnam (settings.tmpdir, NULL);
1339		839
1340	strcpy (filename, m->tmpname);	840	bool
		841	maptile::save_header (object_freezer &freezer)
		842	{
		843	#define MAP_OUT(k) freezer.put (KW_ ## k, k)
		844	#define MAP_OUT2(k,v) freezer.put (KW_ ## k, v)
		845
		846	MAP_OUT2 (arch, "map");
		847
		848	if (name) MAP_OUT (name);
		849	MAP_OUT (swap_time);
		850	MAP_OUT (reset_time);
		851	MAP_OUT (reset_timeout);
		852	MAP_OUT (fixed_resettime);
		853	MAP_OUT (difficulty);
		854
		855	if (region) MAP_OUT2 (region, region->name);
		856
		857	if (shopitems)
1341	}	858	{
		859	char shop[MAX_BUF];
		860	print_shop_string (this, shop);
		861	MAP_OUT2 (shopitems, shop);
		862	}
1342		863
1343	LOG (llevDebug, "Saving map %s to %s\n", m->path, filename);	864	MAP_OUT (shopgreed);
1344	m->in_memory = MAP_SAVING;	865	MAP_OUT (shopmin);
		866	MAP_OUT (shopmax);
		867	if (shoprace) MAP_OUT (shoprace);
		868	MAP_OUT (darkness);
		869	MAP_OUT (width);
		870	MAP_OUT (height);
		871	MAP_OUT (enter_x);
		872	MAP_OUT (enter_y);
1345		873
		874	if (msg) freezer.put (KW_msg , KW_endmsg , msg);
		875	if (maplore) freezer.put (KW_maplore, KW_endmaplore, maplore);
		876
		877	MAP_OUT (outdoor);
		878	MAP_OUT (temp);
		879	MAP_OUT (pressure);
		880	MAP_OUT (humid);
		881	MAP_OUT (windspeed);
		882	MAP_OUT (winddir);
		883	MAP_OUT (sky);
		884
		885	MAP_OUT (per_player);
		886	MAP_OUT (per_party);
		887
		888	if (tile_path [0]) MAP_OUT2 (tile_path_1, tile_path [0]);
		889	if (tile_path [1]) MAP_OUT2 (tile_path_2, tile_path [1]);
		890	if (tile_path [2]) MAP_OUT2 (tile_path_3, tile_path [2]);
		891	if (tile_path [3]) MAP_OUT2 (tile_path_4, tile_path [3]);
		892
		893	freezer.put (this);
		894	freezer.put (KW_end);
		895
		896	return true;
		897	}
		898
		899	bool
		900	maptile::save_header (const char *path)
		901	{
1346	object_freezer freezer;	902	object_freezer freezer;
1347		903
1348	/* legacy */	904	if (!save_header (freezer))
1349	fprintf (freezer, "arch map\n");	905	return false;
1350	if (m->name)
1351	fprintf (freezer, "name %s\n", m->name);
1352	if (!flag)
1353	fprintf (freezer, "swap_time %d\n", m->swap_time);
1354	if (m->reset_timeout)
1355	fprintf (freezer, "reset_timeout %d\n", m->reset_timeout);
1356	if (m->fixed_resettime)
1357	fprintf (freezer, "fixed_resettime %d\n", m->fixed_resettime);
1358	/* we unfortunately have no idea if this is a value the creator set
1359	* or a difficulty value we generated when the map was first loaded
1360	*/
1361	if (m->difficulty)
1362	fprintf (freezer, "difficulty %d\n", m->difficulty);
1363	if (m->region)
1364	fprintf (freezer, "region %s\n", m->region->name);
1365	if (m->shopitems)
1366	{
1367	print_shop_string (m, shop);
1368	fprintf (freezer, "shopitems %s\n", shop);
1369	}
1370	if (m->shopgreed)
1371	fprintf (freezer, "shopgreed %f\n", m->shopgreed);
1372	if (m->shopmin)
1373	fprintf (freezer, "shopmin %llu\n", m->shopmin);
1374	if (m->shopmax)
1375	fprintf (freezer, "shopmax %llu\n", m->shopmax);
1376	if (m->shoprace)
1377	fprintf (freezer, "shoprace %s\n", m->shoprace);
1378	if (m->darkness)
1379	fprintf (freezer, "darkness %d\n", m->darkness);
1380	if (m->width)
1381	fprintf (freezer, "width %d\n", m->width);
1382	if (m->height)
1383	fprintf (freezer, "height %d\n", m->height);
1384	if (m->enter_x)
1385	fprintf (freezer, "enter_x %d\n", m->enter_x);
1386	if (m->enter_y)
1387	fprintf (freezer, "enter_y %d\n", m->enter_y);
1388	if (m->msg)
1389	fprintf (freezer, "msg\n%sendmsg\n", m->msg);
1390	if (m->maplore)
1391	fprintf (freezer, "maplore\n%sendmaplore\n", m->maplore);
1392	if (m->unique)
1393	fprintf (freezer, "unique %d\n", m->unique);
1394	if (m->templatemap)
1395	fprintf (freezer, "template %d\n", m->templatemap);
1396	if (m->outdoor)
1397	fprintf (freezer, "outdoor %d\n", m->outdoor);
1398	if (m->temp)
1399	fprintf (freezer, "temp %d\n", m->temp);
1400	if (m->pressure)
1401	fprintf (freezer, "pressure %d\n", m->pressure);
1402	if (m->humid)
1403	fprintf (freezer, "humid %d\n", m->humid);
1404	if (m->windspeed)
1405	fprintf (freezer, "windspeed %d\n", m->windspeed);
1406	if (m->winddir)
1407	fprintf (freezer, "winddir %d\n", m->winddir);
1408	if (m->sky)
1409	fprintf (freezer, "sky %d\n", m->sky);
1410	if (m->nosmooth)
1411	fprintf (freezer, "nosmooth %d\n", m->nosmooth);
1412		906
1413	/* Save any tiling information, except on overlays */	907	return freezer.save (path);
1414	if (flag != 2)
1415	for (i = 0; i < 4; i++)
1416	if (m->tile_path[i])
1417	fprintf (freezer, "tile_path_%d %s\n", i + 1, m->tile_path[i]);
1418
1419	freezer.put (m);
1420	fprintf (freezer, "end\n");
1421
1422	/* In the game save unique items in the different file, but
1423	* in the editor save them to the normal map file.
1424	* If unique map, save files in the proper destination (set by
1425	* player)
1426	*/
1427	if ((flag == 0 || flag == 2) && !m->unique && !m->templatemap)
1428	{
1429	object_freezer unique;
1430
1431	if (flag == 2)
1432	save_objects (m, freezer, unique, 2);
1433	else
1434	save_objects (m, freezer, unique, 0);
1435
1436	sprintf (buf, "%s.v00", create_items_path (m->path));
1437
1438	unique.save (buf);
1439	}
1440	else
1441	{ /* save same file when not playing, like in editor */
1442	save_objects (m, freezer, freezer, 0);
1443	}
1444
1445	freezer.save (filename);
1446
1447	return 0;
1448	}	908	}
1449		909
1450	/*	910	/*
1451	* Remove and free all objects in the given map.	911	* Remove and free all objects in the given map.
1452	*/	912	*/
1453	void	913	void
1454	free_all_objects (maptile *m)	914	maptile::clear ()
1455	{	915	{
1456	if (!m->spaces)	916	if (!spaces)
1457	return;	917	return;
1458		918
1459	for (int i = 0; i < m->width; i++)	919	for (mapspace *ms = spaces + size (); ms-- > spaces; )
1460	for (int j = 0; j < m->height; j++)	920	while (object *op = ms->bot)
1461	{	921	{
1462	mapspace &ms = m->at (i, j);
1463
1464	while (object *op = ms.bot)
1465	{
1466	if (op->head)	922	if (op->head)
1467	op = op->head;	923	op = op->head;
1468		924
1469	op->destroy_inv (false);	925	op->destroy_inv (false);
1470	op->destroy ();	926	op->destroy ();
1471	}
1472	}	927	}
1473	}
1474		928
1475	/*	929	sfree (spaces, size ()), spaces = 0;
1476	* Frees everything allocated by the given maptileure.	930
1477	* don't free tmpname - our caller is left to do that	931	if (buttons)
1478	*/	932	free_objectlinkpt (buttons), buttons = 0;
		933	}
		934
1479	void	935	void
1480	free_map (maptile *m, int flag)	936	maptile::clear_header ()
1481	{	937	{
1482	if (m->in_memory != MAP_IN_MEMORY)	938	name = 0;
1483	return;	939	msg = 0;
1484		940	maplore = 0;
1485	m->in_memory = MAP_SAVING;	941	shoprace = 0;
1486		942	delete [] shopitems, shopitems = 0;
1487	// TODO: use new/delete
1488	#define FREE_AND_CLEAR(p) { free (p); p = NULL; }
1489
1490	if (flag && m->spaces)
1491	free_all_objects (m);
1492	if (m->name)
1493	FREE_AND_CLEAR (m->name);
1494	if (m->spaces)
1495	FREE_AND_CLEAR (m->spaces);
1496	if (m->msg)
1497	FREE_AND_CLEAR (m->msg);
1498	if (m->maplore)
1499	FREE_AND_CLEAR (m->maplore);
1500
1501	delete [] m->shopitems;
1502	m->shopitems = 0;
1503
1504	if (m->shoprace)
1505	FREE_AND_CLEAR (m->shoprace);
1506
1507	if (m->buttons)
1508	free_objectlinkpt (m->buttons);
1509
1510	m->buttons = NULL;
1511		943
1512	for (int i = 0; i < 4; i++)	944	for (int i = 0; i < 4; i++)
1513	{
1514	if (m->tile_path[i])
1515	FREE_AND_CLEAR (m->tile_path[i]);
1516
1517	m->tile_map[i] = 0;	945	tile_path [i] = 0;
1518	}
1519
1520	m->in_memory = MAP_SWAPPED;
1521
1522	#undef FREE_AND_CLEAR
1523	}	946	}
1524		947
1525	maptile::~maptile ()	948	maptile::~maptile ()
1526	{	949	{
1527	free_map (this, 1);	950	assert (destroyed ());
1528	free (tmpname);
1529	}	951	}
1530		952
1531	void	953	void
1532	maptile::do_destroy ()	954	maptile::clear_links_to (maptile *m)
1533	{	955	{
1534	attachable::do_destroy ();
1535
1536	free_all_objects (this);
1537
1538	/* We need to look through all the maps and see if any maps	956	/* We need to look through all the maps and see if any maps
1539	* are pointing at this one for tiling information. Since	957	* are pointing at this one for tiling information. Since
1540	* tiling can be asymetric, we just can not look to see which	958	* tiling can be asymetric, we just can not look to see which
1541	* maps this map tiles with and clears those.	959	* maps this map tiles with and clears those.
1542	*/	960	*/
1543	//TODO: non-euclidean-tiling MUST GO
1544	for (maptile *m = first_map; m; m = m->next)
1545	for (int i = 0; i < 4; i++)	961	for (int i = 0; i < 4; i++)
1546	if (m->tile_map[i] == this)	962	if (tile_map[i] == m)
1547	m->tile_map[i] = 0;	963	tile_map[i] = 0;
1548
1549	if (first_map == this)
1550	first_map = next;
1551	else
1552	for (maptile *m = first_map; m; m = m->next)
1553	if (m->next = this)
1554	{
1555	m->next = next;
1556	break;
1557	}
1558	}	964	}
1559		965
1560	//TODO: must go
1561	void	966	void
1562	delete_map (maptile *m)	967	maptile::do_destroy ()
1563	{	968	{
1564	if (m)	969	attachable::do_destroy ();
1565	m->destroy ();	970
		971	clear ();
1566	}	972	}
1567		973
1568	/*	974	/*
1569	* Makes sure the given map is loaded and swapped in.	975	* Updates every button on the map (by calling update_button() for them).
1570	* name is path name of the map.
1571	* flags meaning:
1572	* 0x1 (MAP_FLUSH): flush the map - always load from the map directory,
1573	* and don't do unique items or the like.
1574	* 0x2 (MAP_PLAYER_UNIQUE) - this is a unique map for each player.
1575	* dont do any more name translation on it.
1576	*	976	*/
1577	* Returns a pointer to the given map.	977	void
1578	*/	978	maptile::update_buttons ()
1579	maptile *
1580	ready_map_name (const char *name, int flags)
1581	{	979	{
1582	if (!name)	980	for (oblinkpt *obp = buttons; obp; obp = obp->next)
1583	return 0;	981	for (objectlink *ol = obp->link; ol; ol = ol->next)
1584
1585	/* Have we been at this level before? */
1586	maptile *m = has_been_loaded (name);
1587
1588	/* Map is good to go, so just return it */
1589	if (m && (m->in_memory == MAP_LOADING || m->in_memory == MAP_IN_MEMORY))
1590	return m;
1591
1592	/* unique maps always get loaded from their original location, and never
1593	* a temp location. Likewise, if map_flush is set, or we have never loaded
1594	* this map, load it now. I removed the reset checking from here -
1595	* it seems the probability of a player trying to enter a map that should
1596	* reset but hasn't yet is quite low, and removing that makes this function
1597	* a bit cleaner (and players probably shouldn't rely on exact timing for
1598	* resets in any case - if they really care, they should use the 'maps command.
1599	*/
1600	if ((flags & (MAP_FLUSH | MAP_PLAYER_UNIQUE)) || !m)
1601	{	982	{
1602	/* first visit or time to reset */	983	if (!ol->ob)
1603	if (m)
1604	{	984	{
1605	clean_tmp_map (m); /* Doesn't make much difference */	985	LOG (llevError, "Internal error in update_button (%s (%dx%d), connected %ld).\n",
1606	delete_map (m);	986	ol->ob ? (const char *) ol->ob->name : "null", ol->ob ? ol->ob->x : -1, ol->ob ? ol->ob->y : -1, obp->value);
		987	continue;
1607	}	988	}
1608		989
1609	/* create and load a map */	990	if (ol->ob->type == BUTTON || ol->ob->type == PEDESTAL)
1610	if (flags & MAP_PLAYER_UNIQUE)
1611	LOG (llevDebug, "Trying to load map %s.\n", name);
1612	else
1613	LOG (llevDebug, "Trying to load map %s.\n", create_pathname (name));
1614
1615	//eval_pv ("$x = Event::time", 1);//D
1616	if (!(m = load_original_map (name, (flags & MAP_PLAYER_UNIQUE))))
1617	return (NULL);
1618	//eval_pv ("warn \"LOAD \", Event::time - $x", 1);//D
1619
1620	fix_auto_apply (m); /* Chests which open as default */
1621
1622	/* If a player unique map, no extra unique object file to load.
1623	* if from the editor, likewise.
1624	*/
1625	if (!(flags & (MAP_FLUSH | MAP_PLAYER_UNIQUE)))
1626	load_unique_objects (m);
1627
1628	if (!(flags & (MAP_FLUSH | MAP_PLAYER_UNIQUE | MAP_OVERLAY)))
1629	{	991	{
1630	m = load_overlay_map (name, m);	992	update_button (ol->ob);
1631	if (m == NULL)	993	break;
1632	return NULL;
1633	}	994	}
1634
1635	if (flags & MAP_PLAYER_UNIQUE)
1636	INVOKE_MAP (SWAPIN, m);
1637
1638	}	995	}
1639	else
1640	{
1641	/* If in this loop, we found a temporary map, so load it up. */
1642
1643	m = load_temporary_map (m);
1644	if (m == NULL)
1645	return NULL;
1646	load_unique_objects (m);
1647
1648	clean_tmp_map (m);
1649	m->in_memory = MAP_IN_MEMORY;
1650	/* tempnam() on sun systems (probably others) uses malloc
1651	* to allocated space for the string. Free it here.
1652	* In some cases, load_temporary_map above won't find the
1653	* temporary map, and so has reloaded a new map. If that
1654	* is the case, tmpname is now null
1655	*/
1656	if (m->tmpname)
1657	free (m->tmpname);
1658	m->tmpname = NULL;
1659	/* It's going to be saved anew anyway */
1660	}
1661
1662	/* Below here is stuff common to both first time loaded maps and
1663	* temp maps.
1664	*/
1665
1666	decay_objects (m); /* start the decay */
1667	/* In case other objects press some buttons down */
1668	update_buttons (m);
1669	if (m->outdoor)
1670	set_darkness_map (m);
1671	/* run the weather over this map */
1672	weather_effect (name);
1673	return m;
1674	}	996	}
1675
1676		997
1677	/*	998	/*
1678	* This routine is supposed to find out the difficulty of the map.	999	* This routine is supposed to find out the difficulty of the map.
1679	* difficulty does not have a lot to do with character level,	1000	* difficulty does not have a lot to do with character level,
1680	* but does have a lot to do with treasure on the map.	1001	* but does have a lot to do with treasure on the map.
…		…
1682	* Difficulty can now be set by the map creature. If the value stored	1003	* Difficulty can now be set by the map creature. If the value stored
1683	* in the map is zero, then use this routine. Maps should really	1004	* in the map is zero, then use this routine. Maps should really
1684	* have a difficulty set than using this function - human calculation	1005	* have a difficulty set than using this function - human calculation
1685	* is much better than this functions guesswork.	1006	* is much better than this functions guesswork.
1686	*/	1007	*/
1687
1688	int	1008	int
1689	calculate_difficulty (maptile *m)	1009	maptile::estimate_difficulty () const
1690	{	1010	{
1691	object *op;
1692	archetype *at;
1693	int x, y, i;
1694	long monster_cnt = 0;	1011	long monster_cnt = 0;
1695	double avgexp = 0;	1012	double avgexp = 0;
1696	sint64 total_exp = 0;	1013	sint64 total_exp = 0;
1697		1014
1698	if (m->difficulty)	1015	for (mapspace *ms = spaces + size (); ms-- > spaces; )
1699	{	1016	for (object *op = ms->bot; op; op = op->above)
1700	LOG (llevDebug, "Using stored map difficulty: %d\n", m->difficulty);
1701	return m->difficulty;
1702	}
1703
1704	for (x = 0; x < m->width; x++)
1705	for (y = 0; y < m->height; y++)
1706	for (op = GET_MAP_OB (m, x, y); op != NULL; op = op->above)
1707	{	1017	{
1708	if (QUERY_FLAG (op, FLAG_MONSTER))	1018	if (QUERY_FLAG (op, FLAG_MONSTER))
1709	{	1019	{
1710	total_exp += op->stats.exp;	1020	total_exp += op->stats.exp;
1711	monster_cnt++;	1021	monster_cnt++;
1712	}	1022	}
1713		1023
1714	if (QUERY_FLAG (op, FLAG_GENERATOR))	1024	if (QUERY_FLAG (op, FLAG_GENERATOR))
1715	{	1025	{
1716	total_exp += op->stats.exp;	1026	total_exp += op->stats.exp;
		1027
1717	at = type_to_archetype (GENERATE_TYPE (op));	1028	if (archetype *at = type_to_archetype (GENERATE_TYPE (op)))
1718
1719	if (at != NULL)
1720	total_exp += at->clone.stats.exp * 8;	1029	total_exp += at->clone.stats.exp * 8;
1721		1030
1722	monster_cnt++;	1031	monster_cnt++;
1723	}	1032	}
1724	}	1033	}
1725		1034
1726	avgexp = (double) total_exp / monster_cnt;	1035	avgexp = (double) total_exp / monster_cnt;
1727		1036
1728	for (i = 1; i <= settings.max_level; i++)	1037	for (int i = 1; i <= settings.max_level; i++)
1729	{
1730	if ((level_exp (i, 1) - level_exp (i - 1, 1)) > (100 * avgexp))	1038	if ((level_exp (i, 1) - level_exp (i - 1, 1)) > (100 * avgexp))
1731	{
1732	/* LOG(llevDebug, "Calculated difficulty for map: %s: %d\n", m->name, i); */
1733	return i;	1039	return i;
1734	}
1735	}
1736		1040
1737	return 1;	1041	return 1;
1738	}
1739
1740	void
1741	clean_tmp_map (maptile *m)
1742	{
1743	if (m->tmpname == NULL)
1744	return;
1745	INVOKE_MAP (CLEAN, m);
1746	(void) unlink (m->tmpname);
1747	}
1748
1749	void
1750	free_all_maps (void)
1751	{
1752	int real_maps = 0;
1753
1754	while (first_map)
1755	{
1756	/* I think some of the callers above before it gets here set this to be
1757	* saving, but we still want to free this data
1758	*/
1759	if (first_map->in_memory == MAP_SAVING)
1760	first_map->in_memory = MAP_IN_MEMORY;
1761	delete_map (first_map);
1762	real_maps++;
1763	}
1764	LOG (llevDebug, "free_all_maps: Freed %d maps\n", real_maps);
1765	}	1042	}
1766		1043
1767	/* change_map_light() - used to change map light level (darkness)	1044	/* change_map_light() - used to change map light level (darkness)
1768	* up or down. Returns true if successful. It should now be	1045	* up or down. Returns true if successful. It should now be
1769	* possible to change a value by more than 1.	1046	* possible to change a value by more than 1.
1770	* Move this from los.c to map.c since this is more related	1047	* Move this from los.c to map.c since this is more related
1771	* to maps than los.	1048	* to maps than los.
1772	* postive values make it darker, negative make it brighter	1049	* postive values make it darker, negative make it brighter
1773	*/	1050	*/
1774
1775	int	1051	int
1776	change_map_light (maptile *m, int change)	1052	maptile::change_map_light (int change)
1777	{	1053	{
1778	int new_level = m->darkness + change;	1054	int new_level = darkness + change;
1779		1055
1780	/* Nothing to do */	1056	/* Nothing to do */
1781	if (!change || (new_level <= 0 && m->darkness == 0) || (new_level >= MAX_DARKNESS && m->darkness >= MAX_DARKNESS))	1057	if (!change || (new_level <= 0 && darkness == 0) || (new_level >= MAX_DARKNESS && darkness >= MAX_DARKNESS))
1782	{
1783	return 0;	1058	return 0;
1784	}
1785		1059
1786	/* inform all players on the map */	1060	/* inform all players on the map */
1787	if (change > 0)	1061	if (change > 0)
1788	new_info_map (NDI_BLACK | NDI_UNIQUE, m, "It becomes darker.");	1062	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes darker.");
1789	else	1063	else
1790	new_info_map (NDI_BLACK | NDI_UNIQUE, m, "It becomes brighter.");	1064	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes brighter.");
1791		1065
1792	/* Do extra checking. since m->darkness is a unsigned value,	1066	/* Do extra checking. since darkness is a unsigned value,
1793	* we need to be extra careful about negative values.	1067	* we need to be extra careful about negative values.
1794	* In general, the checks below are only needed if change	1068	* In general, the checks below are only needed if change
1795	* is not +/-1	1069	* is not +/-1
1796	*/	1070	*/
1797	if (new_level < 0)	1071	if (new_level < 0)
1798	m->darkness = 0;	1072	darkness = 0;
1799	else if (new_level >= MAX_DARKNESS)	1073	else if (new_level >= MAX_DARKNESS)
1800	m->darkness = MAX_DARKNESS;	1074	darkness = MAX_DARKNESS;
1801	else	1075	else
1802	m->darkness = new_level;	1076	darkness = new_level;
1803		1077
1804	/* All clients need to get re-updated for the change */	1078	/* All clients need to get re-updated for the change */
1805	update_all_map_los (m);	1079	update_all_map_los (this);
1806	return 1;	1080	return 1;
1807	}	1081	}
1808		1082
1809	/*	1083	/*
1810	* This function updates various attributes about a specific space	1084	* This function updates various attributes about a specific space
…		…
1982	faces [0] = top; faces_obj [0] = top != blank_face ? top_obj : 0;	1256	faces [0] = top; faces_obj [0] = top != blank_face ? top_obj : 0;
1983	faces [1] = middle; faces_obj [1] = middle != blank_face ? middle_obj : 0;	1257	faces [1] = middle; faces_obj [1] = middle != blank_face ? middle_obj : 0;
1984	faces [2] = floor; faces_obj [2] = floor != blank_face ? floor_obj : 0;	1258	faces [2] = floor; faces_obj [2] = floor != blank_face ? floor_obj : 0;
1985	}	1259	}
1986		1260
1987	void
1988	set_map_reset_time (maptile *map)
1989	{
1990	int timeout;
1991
1992	timeout = map->reset_timeout;
1993	if (timeout <= 0)
1994	timeout = MAP_DEFAULTRESET;
1995	if (timeout >= MAP_MAXRESET)
1996	timeout = MAP_MAXRESET;
1997	map->reset_time = time (0) + timeout;
1998	}
1999
2000	/* this updates the orig_map->tile_map[tile_num] value after loading	1261	/* this updates the orig_map->tile_map[tile_num] value after loading
2001	* the map. It also takes care of linking back the freshly loaded	1262	* the map. It also takes care of linking back the freshly loaded
2002	* maps tile_map values if it tiles back to this one. It returns	1263	* maps tile_map values if it tiles back to this one. It returns
2003	* the value of orig_map->tile_map[tile_num]. It really only does this	1264	* the value of orig_map->tile_map[tile_num]. It really only does this
2004	* so that it is easier for calling functions to verify success.	1265	* so that it is easier for calling functions to verify success.
2005	*/	1266	*/
2006
2007	static maptile *	1267	static maptile *
2008	load_and_link_tiled_map (maptile *orig_map, int tile_num)	1268	load_and_link_tiled_map (maptile *orig_map, int tile_num)
2009	{	1269	{
		1270	maptile *mp = orig_map->load_map_sync (orig_map->tile_path [tile_num], orig_map);
		1271
		1272	if (!mp || mp->in_memory != MAP_IN_MEMORY)
		1273	{
		1274	// emergency mode, manufacture a dummy map, this creates a memleak, but thats fine
		1275	LOG (llevError, "FATAL: cannot load tiled map %s from %s, leaking memory and worse!\n",
		1276	&orig_map->tile_path[tile_num], &orig_map->path);
		1277	mp = new maptile (1, 1);
		1278	mp->alloc ();
		1279	mp->in_memory = MAP_IN_MEMORY;
		1280	}
		1281
2010	int dest_tile = (tile_num + 2) % 4;	1282	int dest_tile = (tile_num + 2) % 4;
2011	char *path = path_combine_and_normalize (orig_map->path, orig_map->tile_path[tile_num]);
2012		1283
2013	orig_map->tile_map[tile_num] = ready_map_name (path, 0);	1284	orig_map->tile_map[tile_num] = mp;
2014		1285
2015	/* need to do a strcmp here as the orig_map->path is not a shared string */	1286	// optimisation: back-link map to origin map if euclidean
2016	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))	1287	//TODO: non-euclidean maps MUST GO
		1288	if (orig_map->tile_map[tile_num]->tile_path[dest_tile] == orig_map->path)
2017	orig_map->tile_map[tile_num]->tile_map[dest_tile] = orig_map;	1289	orig_map->tile_map[tile_num]->tile_map[dest_tile] = orig_map;
2018		1290
2019	return orig_map->tile_map[tile_num];	1291	return mp;
2020	}	1292	}
2021		1293
2022	/* this returns TRUE if the coordinates (x,y) are out of	1294	/* this returns TRUE if the coordinates (x,y) are out of
2023	* map m. This function also takes into account any	1295	* map m. This function also takes into account any
2024	* tiling considerations, loading adjacant maps as needed.	1296	* tiling considerations, loading adjacant maps as needed.
2025	* This is the function should always be used when it	1297	* This is the function should always be used when it
2026	* necessary to check for valid coordinates.	1298	* necessary to check for valid coordinates.
2027	* This function will recursively call itself for the	1299	* This function will recursively call itself for the
2028	* tiled maps.	1300	* tiled maps.
2029	*
2030	*
2031	*/	1301	*/
2032	int	1302	int
2033	out_of_map (maptile *m, int x, int y)	1303	out_of_map (maptile *m, int x, int y)
2034	{	1304	{
2035	/* If we get passed a null map, this is obviously the	1305	/* If we get passed a null map, this is obviously the
…		…
2045	return 1;	1315	return 1;
2046		1316
2047	if (!m->tile_map[3] || m->tile_map[3]->in_memory != MAP_IN_MEMORY)	1317	if (!m->tile_map[3] || m->tile_map[3]->in_memory != MAP_IN_MEMORY)
2048	load_and_link_tiled_map (m, 3);	1318	load_and_link_tiled_map (m, 3);
2049		1319
2050	return (out_of_map (m->tile_map[3], x + m->tile_map[3]->width, y));	1320	return out_of_map (m->tile_map[3], x + m->tile_map[3]->width, y);
2051	}	1321	}
2052		1322
2053	if (x >= m->width)	1323	if (x >= m->width)
2054	{	1324	{
2055	if (!m->tile_path[1])	1325	if (!m->tile_path[1])
2056	return 1;	1326	return 1;
2057		1327
2058	if (!m->tile_map[1] || m->tile_map[1]->in_memory != MAP_IN_MEMORY)	1328	if (!m->tile_map[1] || m->tile_map[1]->in_memory != MAP_IN_MEMORY)
2059	load_and_link_tiled_map (m, 1);	1329	load_and_link_tiled_map (m, 1);
2060		1330
2061	return (out_of_map (m->tile_map[1], x - m->width, y));	1331	return out_of_map (m->tile_map[1], x - m->width, y);
2062	}	1332	}
2063		1333
2064	if (y < 0)	1334	if (y < 0)
2065	{	1335	{
2066	if (!m->tile_path[0])	1336	if (!m->tile_path[0])
2067	return 1;	1337	return 1;
2068		1338
2069	if (!m->tile_map[0] || m->tile_map[0]->in_memory != MAP_IN_MEMORY)	1339	if (!m->tile_map[0] || m->tile_map[0]->in_memory != MAP_IN_MEMORY)
2070	load_and_link_tiled_map (m, 0);	1340	load_and_link_tiled_map (m, 0);
2071		1341
2072	return (out_of_map (m->tile_map[0], x, y + m->tile_map[0]->height));	1342	return out_of_map (m->tile_map[0], x, y + m->tile_map[0]->height);
2073	}	1343	}
2074		1344
2075	if (y >= m->height)	1345	if (y >= m->height)
2076	{	1346	{
2077	if (!m->tile_path[2])	1347	if (!m->tile_path[2])
2078	return 1;	1348	return 1;
2079		1349
2080	if (!m->tile_map[2] || m->tile_map[2]->in_memory != MAP_IN_MEMORY)	1350	if (!m->tile_map[2] || m->tile_map[2]->in_memory != MAP_IN_MEMORY)
2081	load_and_link_tiled_map (m, 2);	1351	load_and_link_tiled_map (m, 2);
2082		1352
2083	return (out_of_map (m->tile_map[2], x, y - m->height));	1353	return out_of_map (m->tile_map[2], x, y - m->height);
2084	}	1354	}
2085		1355
2086	/* Simple case - coordinates are within this local	1356	/* Simple case - coordinates are within this local
2087	* map.	1357	* map.
2088	*/	1358	*/
…		…
2096	* updates x and y to be the localized coordinates.	1366	* updates x and y to be the localized coordinates.
2097	* Using this is more efficient of calling out_of_map	1367	* Using this is more efficient of calling out_of_map
2098	* and then figuring out what the real map is	1368	* and then figuring out what the real map is
2099	*/	1369	*/
2100	maptile *	1370	maptile *
2101	get_map_from_coord (maptile *m, sint16 * x, sint16 * y)	1371	get_map_from_coord (maptile *m, sint16 *x, sint16 *y)
2102	{	1372	{
2103
2104	if (*x < 0)	1373	if (*x < 0)
2105	{	1374	{
2106	if (!m->tile_path[3])	1375	if (!m->tile_path[3])
2107	return 0;	1376	return 0;
		1377
2108	if (!m->tile_map[3] || m->tile_map[3]->in_memory != MAP_IN_MEMORY)	1378	if (!m->tile_map[3] || m->tile_map[3]->in_memory != MAP_IN_MEMORY)
2109	load_and_link_tiled_map (m, 3);	1379	load_and_link_tiled_map (m, 3);
2110		1380
2111	*x += m->tile_map[3]->width;	1381	*x += m->tile_map[3]->width;
2112	return (get_map_from_coord (m->tile_map[3], x, y));	1382	return (get_map_from_coord (m->tile_map[3], x, y));
…		…
2149	}	1419	}
2150		1420
2151	/* Simple case - coordinates are within this local	1421	/* Simple case - coordinates are within this local
2152	* map.	1422	* map.
2153	*/	1423	*/
2154
2155	return m;	1424	return m;
2156	}	1425	}
2157		1426
2158	/**	1427	/**
2159	* Return whether map2 is adjacent to map1. If so, store the distance from	1428	* Return whether map2 is adjacent to map1. If so, store the distance from
…		…
2167		1436
2168	if (map1 == map2)	1437	if (map1 == map2)
2169	{	1438	{
2170	*dx = 0;	1439	*dx = 0;
2171	*dy = 0;	1440	*dy = 0;
2172
2173	}	1441	}
2174	else if (map1->tile_map[0] == map2)	1442	else if (map1->tile_map[0] == map2)
2175	{ /* up */	1443	{ /* up */
2176	*dx = 0;	1444	*dx = 0;
2177	*dy = -map2->height;	1445	*dy = -map2->height;
…		…
2188	}	1456	}
2189	else if (map1->tile_map[3] == map2)	1457	else if (map1->tile_map[3] == map2)
2190	{ /* left */	1458	{ /* left */
2191	*dx = -map2->width;	1459	*dx = -map2->width;
2192	*dy = 0;	1460	*dy = 0;
2193
2194	}	1461	}
2195	else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[1] == map2)	1462	else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[1] == map2)
2196	{ /* up right */	1463	{ /* up right */
2197	*dx = map1->tile_map[0]->width;	1464	*dx = map1->tile_map[0]->width;
2198	*dy = -map1->tile_map[0]->height;	1465	*dy = -map1->tile_map[0]->height;
…		…
2229	}	1496	}
2230	else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[2] == map2)	1497	else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[2] == map2)
2231	{ /* left down */	1498	{ /* left down */
2232	*dx = -map1->tile_map[3]->width;	1499	*dx = -map1->tile_map[3]->width;
2233	*dy = map1->tile_map[3]->height;	1500	*dy = map1->tile_map[3]->height;
2234
2235	}	1501	}
2236	else	1502	else
2237	{ /* not "adjacent" enough */
2238	return 0;	1503	return 0;
2239	}
2240		1504
2241	return 1;	1505	return 1;
2242	}	1506	}
2243		1507
2244	/* From map.c	1508	/* From map.c
…		…
2259	* be unexpected	1523	* be unexpected
2260	*	1524	*
2261	* currently, the only flag supported (0x1) is don't translate for	1525	* currently, the only flag supported (0x1) is don't translate for
2262	* closest body part of 'op1'	1526	* closest body part of 'op1'
2263	*/	1527	*/
2264
2265	void	1528	void
2266	get_rangevector (object *op1, object *op2, rv_vector * retval, int flags)	1529	get_rangevector (object *op1, object *op2, rv_vector * retval, int flags)
2267	{	1530	{
2268	if (!adjacent_map (op1->map, op2->map, &retval->distance_x, &retval->distance_y))	1531	if (!adjacent_map (op1->map, op2->map, &retval->distance_x, &retval->distance_y))
2269	{	1532	{
…		…
2350	}	1613	}
2351	}	1614	}
2352		1615
2353	/* Returns true of op1 and op2 are effectively on the same map	1616	/* Returns true of op1 and op2 are effectively on the same map
2354	* (as related to map tiling). Note that this looks for a path from	1617	* (as related to map tiling). Note that this looks for a path from
2355	* op1 to op2, so if the tiled maps are assymetric and op2 has a path	1618	* op1 to op2, so if the tiled maps are asymetric and op2 has a path
2356	* to op1, this will still return false.	1619	* to op1, this will still return false.
2357	* Note we only look one map out to keep the processing simple	1620	* Note we only look one map out to keep the processing simple
2358	* and efficient. This could probably be a macro.	1621	* and efficient. This could probably be a macro.
2359	* MSW 2001-08-05	1622	* MSW 2001-08-05
2360	*/	1623	*/
…		…
2363	{	1626	{
2364	int dx, dy;	1627	int dx, dy;
2365		1628
2366	return adjacent_map (op1->map, op2->map, &dx, &dy);	1629	return adjacent_map (op1->map, op2->map, &dx, &dy);
2367	}	1630	}
		1631
		1632	object *
		1633	maptile::insert (object *op, int x, int y, object *originator, int flags)
		1634	{
		1635	if (!op->flag [FLAG_REMOVED])
		1636	op->remove ();
		1637
		1638	return insert_ob_in_map_at (op, this, originator, flags, x, y);
		1639	}
		1640

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