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/cvs/deliantra/server/common/map.C

Comparing deliantra/server/common/map.C (file contents):
Revision 1.52 by root, Tue Dec 26 20:04:09 2006 UTC vs.
Revision 1.98 by root, Sat Mar 17 22:11:22 2007 UTC

1	/*	1	/*
2	CrossFire, A Multiplayer game for X-windows	2	* CrossFire, A Multiplayer game for X-windows
3		3	*
		4	* Copyright (C) 2005, 2006, 2007 Marc Lehmann & Crossfire+ Development Team
4	Copyright (C) 2001-2003 Mark Wedel & Crossfire Development Team	5	* Copyright (C) 2001-2003 Mark Wedel & Crossfire Development Team
5	Copyright (C) 1992 Frank Tore Johansen	6	* Copyright (C) 1992 Frank Tore Johansen
6		7	*
7	This program is free software; you can redistribute it and/or modify	8	* This program 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 2 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, write to the Free Software
19	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	20	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20		21	*
21	The authors can be reached via e-mail at <crossfire@schmorp.de>	22	* The authors can be reached via e-mail at <crossfire@schmorp.de>
22	*/	23	*/
23		24
24
25	#include <global.h>
26	#include <funcpoint.h>
27
28	#include <loader.h>
29	#include <unistd.h>	25	#include <unistd.h>
30		26
		27	#include "global.h"
		28	#include "funcpoint.h"
		29
		30	#include "loader.h"
		31
31	#include "path.h"	32	#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		33
52	/*	34	/*
53	* This makes a path absolute outside the world of Crossfire.	35	* This makes a path absolute outside the world of Crossfire.
54	* In other words, it prepends LIBDIR/MAPDIR/ to the given path	36	* In other words, it prepends LIBDIR/MAPDIR/ to the given path
55	* and returns the pointer to a static array containing the result.	37	* and returns the pointer to a static array containing the result.
56	* it really should be called create_mapname	38	* it really should be called create_mapname
57	*/	39	*/
58
59	const char *	40	const char *
60	create_pathname (const char *name)	41	create_pathname (const char *name)
61	{	42	{
62	static char buf[MAX_BUF];	43	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);	44	snprintf (buf, sizeof (buf), "%s/%s/%s", settings.datadir, settings.mapdir, name);
71	return (buf);	45	return buf;
72	}	46	}
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		47
139	/*	48	/*
140	* This function checks if a file with the given path exists.	49	* This function checks if a file with the given path exists.
141	* -1 is returned if it fails, otherwise the mode of the file	50	* -1 is returned if it fails, otherwise the mode of the file
142	* is returned.	51	* is returned.
…		…
149	* the rest of the code only cares that the file is readable.	58	* the rest of the code only cares that the file is readable.
150	* when the editor goes away, the call to stat should probably be	59	* when the editor goes away, the call to stat should probably be
151	* replaced by an access instead (similar to the windows one, but	60	* replaced by an access instead (similar to the windows one, but
152	* that seems to be missing the prepend_dir processing	61	* that seems to be missing the prepend_dir processing
153	*/	62	*/
154
155	int	63	int
156	check_path (const char *name, int prepend_dir)	64	check_path (const char *name, int prepend_dir)
157	{	65	{
158	char buf[MAX_BUF];	66	char buf[MAX_BUF];
159		67
160	char *endbuf;	68	char *endbuf;
161	struct stat statbuf;	69	struct stat statbuf;
162	int mode = 0;	70	int mode = 0;
163		71
164	if (prepend_dir)	72	if (prepend_dir)
165	strcpy (buf, create_pathname (name));	73	assign (buf, create_pathname (name));
166	else	74	else
167	strcpy (buf, name);	75	assign (buf, name);
168		76
169	/* old method (strchr(buf, '\0')) seemd very odd to me -	77	/* old method (strchr(buf, '\0')) seemd very odd to me -
170	* this method should be equivalant and is clearer.	78	* this method should be equivalant and is clearer.
171	* Can not use strcat because we need to cycle through	79	* Can not use strcat because we need to cycle through
172	* all the names.	80	* all the names.
…		…
185	if ((statbuf.st_mode & S_IWGRP && getegid () == statbuf.st_gid) ||	93	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))	94	(statbuf.st_mode & S_IWUSR && geteuid () == statbuf.st_uid) || (statbuf.st_mode & S_IWOTH))
187	mode |= 2;	95	mode |= 2;
188		96
189	return (mode);	97	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	}	98	}
231		99
232	/* This rolls up wall, blocks_magic, blocks_view, etc, all into	100	/* This rolls up wall, blocks_magic, blocks_view, etc, all into
233	* one function that just returns a P_.. value (see map.h)	101	* one function that just returns a P_.. value (see map.h)
234	* it will also do map translation for tiled maps, returning	102	* it will also do map translation for tiled maps, returning
…		…
240	* don't expect to insert/remove anything from those spaces.	108	* don't expect to insert/remove anything from those spaces.
241	*/	109	*/
242	int	110	int
243	get_map_flags (maptile *oldmap, maptile **newmap, sint16 x, sint16 y, sint16 *nx, sint16 *ny)	111	get_map_flags (maptile *oldmap, maptile **newmap, sint16 x, sint16 y, sint16 *nx, sint16 *ny)
244	{	112	{
245	sint16 newx, newy;
246	int retval = 0;
247	maptile *mp;
248
249	newx = x;	113	sint16 newx = x;
250	newy = y;	114	sint16 newy = y;
251		115
252	mp = get_map_from_coord (oldmap, &newx, &newy);	116	maptile *mp = get_map_from_coord (oldmap, &newx, &newy);
253		117
254	if (!mp)	118	if (!mp)
255	return P_OUT_OF_MAP;	119	return P_OUT_OF_MAP;
256
257	if (mp != oldmap)
258	retval |= P_NEW_MAP;
259		120
260	if (newmap) *newmap = mp;	121	if (newmap) *newmap = mp;
261	if (nx) *nx = newx;	122	if (nx) *nx = newx;
262	if (ny) *ny = newy;	123	if (ny) *ny = newy;
263		124
264	return retval | mp->at (newx, newy).flags ();	125	return mp->at (newx, newy).flags () | (mp != oldmap ? P_NEW_MAP : 0);
265	}	126	}
266		127
267	/*	128	/*
268	* Returns true if the given coordinate is blocked except by the	129	* Returns true if the given coordinate is blocked except by the
269	* object passed is not blocking. This is used with	130	* object passed is not blocking. This is used with
…		…
368		229
369	}	230	}
370	return 0;	231	return 0;
371	}	232	}
372		233
373
374	/*	234	/*
375	* Returns true if the given object can't fit in the given spot.	235	* Returns true if the given object can't fit in the given spot.
376	* This is meant for multi space objects - for single space objecs,	236	* This is meant for multi space objects - for single space objecs,
377	* just calling get_map_blocked and checking that against movement type	237	* just calling get_map_blocked and checking that against movement type
378	* of object. This function goes through all the parts of the	238	* of object. This function goes through all the parts of the
…		…
403	archetype *tmp;	263	archetype *tmp;
404	int flag;	264	int flag;
405	maptile *m1;	265	maptile *m1;
406	sint16 sx, sy;	266	sint16 sx, sy;
407		267
408	if (ob == NULL)	268	if (!ob)
409	{	269	{
410	flag = get_map_flags (m, &m1, x, y, &sx, &sy);	270	flag = get_map_flags (m, &m1, x, y, &sx, &sy);
411	if (flag & P_OUT_OF_MAP)	271	if (flag & P_OUT_OF_MAP)
412	return P_OUT_OF_MAP;	272	return P_OUT_OF_MAP;
413		273
…		…
423	return P_OUT_OF_MAP;	283	return P_OUT_OF_MAP;
424	if (flag & P_IS_ALIVE)	284	if (flag & P_IS_ALIVE)
425	return P_IS_ALIVE;	285	return P_IS_ALIVE;
426		286
427	mapspace &ms = m1->at (sx, sy);	287	mapspace &ms = m1->at (sx, sy);
428
429		288
430	/* find_first_free_spot() calls this function. However, often	289	/* find_first_free_spot() calls this function. However, often
431	* ob doesn't have any move type (when used to place exits)	290	* 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.	291	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.
433	*/	292	*/
…		…
449	* into inventory, but just links them. What this does is go through	308	* into inventory, but just links them. What this does is go through
450	* and insert them properly.	309	* and insert them properly.
451	* The object 'container' is the object that contains the inventory.	310	* The object 'container' is the object that contains the inventory.
452	* This is needed so that we can update the containers weight.	311	* This is needed so that we can update the containers weight.
453	*/	312	*/
454
455	void	313	void
456	fix_container (object *container)	314	fix_container (object *container)
457	{	315	{
458	object *tmp = container->inv, *next;	316	object *tmp = container->inv, *next;
459		317
460	container->inv = NULL;	318	container->inv = 0;
461	while (tmp != NULL)	319	while (tmp)
462	{	320	{
463	next = tmp->below;	321	next = tmp->below;
464	if (tmp->inv)	322	if (tmp->inv)
465	fix_container (tmp);	323	fix_container (tmp);
		324
466	(void) insert_ob_in_ob (tmp, container);	325	insert_ob_in_ob (tmp, container);
467	tmp = next;	326	tmp = next;
468	}	327	}
		328
469	/* sum_weight will go through and calculate what all the containers are	329	/* sum_weight will go through and calculate what all the containers are
470	* carrying.	330	* carrying.
471	*/	331	*/
472	sum_weight (container);	332	sum_weight (container);
		333	}
		334
		335	void
		336	maptile::set_object_flag (int flag, int value)
		337	{
		338	if (!spaces)
		339	return;
		340
		341	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		342	for (object *tmp = ms->bot; tmp; tmp = tmp->above)
		343	tmp->flag [flag] = value;
473	}	344	}
474		345
475	/* link_multipart_objects go through all the objects on the map looking	346	/* link_multipart_objects go through all the objects on the map looking
476	* for objects whose arch says they are multipart yet according to the	347	* 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	348	* 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	349	* 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.	350	* the more sections and not re-add sections for them.
480	*/	351	*/
481		352	void
482	static void	353	maptile::link_multipart_objects ()
483	link_multipart_objects (maptile *m)
484	{	354	{
485	int x, y;	355	if (!spaces)
486	object *tmp, *op, *last, *above;	356	return;
487	archetype *at;
488		357
489	for (x = 0; x < m->width; x++)	358	for (mapspace *ms = spaces + size (); ms-- > spaces; )
490	for (y = 0; y < m->height; y++)	359	for (object *tmp = ms->bot; tmp; tmp = tmp->above)
491	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = above)
492	{	360	{
493	above = tmp->above;
494
495	/* already multipart - don't do anything more */	361	/* already multipart - don't do anything more */
496	if (tmp->head || tmp->more)	362	if (!tmp->head && !tmp->more)
497	continue;	363	{
498
499	/* If there is nothing more to this object, this for loop	364	/* If there is nothing more to this object, this for loop
500	* won't do anything.	365	* won't do anything.
501	*/	366	*/
502	for (at = tmp->arch->more, last = tmp; at != NULL; at = at->more, last = op)	367	archetype *at;
		368	object *last, *op;
		369	for (at = tmp->arch->more, last = tmp;
		370	at;
		371	at = at->more, last = op)
503	{	372	{
504	op = arch_to_object (at);	373	op = arch_to_object (at);
505		374
506	/* update x,y coordinates */	375	/* update x,y coordinates */
507	op->x += tmp->x;	376	op->x += tmp->x;
508	op->y += tmp->y;	377	op->y += tmp->y;
509	op->head = tmp;	378	op->head = tmp;
510	op->map = m;	379	op->map = this;
511	last->more = op;	380	last->more = op;
512	op->name = tmp->name;	381	op->name = tmp->name;
513	op->title = tmp->title;	382	op->title = tmp->title;
		383
514	/* we could link all the parts onto tmp, and then just	384	/* we could link all the parts onto tmp, and then just
515	* call insert_ob_in_map once, but the effect is the same,	385	* 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	386	* 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.	387	* the coding is simpler to just to it here with each part.
518	*/	388	*/
519	insert_ob_in_map (op, op->map, tmp, INS_NO_MERGE | INS_ABOVE_FLOOR_ONLY | INS_NO_WALK_ON);	389	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 */	390	}
521	} /* for objects on this space */	391	}
		392	}
522	}	393	}
523		394
524	/*	395	/*
525	* Loads (ands parses) the objects into a given map from the specified	396	* Loads (ands parses) the objects into a given map from the specified
526	* file pointer.	397	* file pointer.
527	* mapflags is the same as we get with load_original_map
528	*/	398	*/
529	void	399	bool
530	load_objects (maptile *m, object_thawer & fp, int mapflags)	400	maptile::_load_objects (object_thawer &f)
531	{	401	{
532	int i, j;	402	for (;;)
533	int unique;
534	object *op, *prev = NULL, *last_more = NULL, *otmp;
535
536	op = object::create ();
537	op->map = m; /* To handle buttons correctly */
538
539	while ((i = load_object (fp, op, mapflags)))
540	{	403	{
541	/* if the archetype for the object is null, means that we	404	coroapi::cede_every (1000); // cede once in a while
542	* got an invalid object. Don't do anything with it - the game	405
543	* or editor will not be able to do anything with it either.	406	switch (f.kw)
544	*/
545	if (op->arch == NULL)
546	{	407	{
547	LOG (llevDebug, "Discarding object without arch: %s\n", op->name ? (const char *) op->name : "(null)");	408	case KW_arch:
548	continue;	409	if (object *op = object::read (f, this))
549	}
550
551	switch (i)
552	{
553	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	410	{
		411	if (op->inv)
		412	sum_weight (op);
		413
558	insert_ob_in_map (op, m, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ON_TOP | INS_MAP_LOAD);	414	insert_ob_in_map (op, this, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ON_TOP | INS_MAP_LOAD);
		415	}
559		416
560	if (op->inv)	417	continue;
561	sum_weight (op);
562		418
563	prev = op, last_more = op;
564	break;
565
566	case LL_MORE:	419	case KW_EOF:
567	insert_ob_in_map (op, m, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ABOVE_FLOOR_ONLY);	420	return true;
568	op->head = prev, last_more->more = op, last_more = op;	421
		422	default:
		423	if (!f.parse_error ("map file"))
		424	return false;
569	break;	425	break;
570	}	426	}
571		427
572	if (mapflags & MAP_STYLE)	428	f.next ();
573	remove_from_active_list (op);
574
575	op = object::create ();
576	op->map = m;
577	}
578
579	for (i = 0; i < m->width; i++)
580	{	429	}
581	for (j = 0; j < m->height; j++)	430
		431	return true;
		432	}
		433
		434	void
		435	maptile::activate ()
		436	{
		437	if (!spaces)
		438	return;
		439
		440	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		441	for (object *op = ms->bot; op; op = op->above)
		442	op->activate_recursive ();
		443	}
		444
		445	void
		446	maptile::deactivate ()
		447	{
		448	if (!spaces)
		449	return;
		450
		451	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		452	for (object *op = ms->bot; op; op = op->above)
		453	op->deactivate_recursive ();
		454	}
		455
		456	bool
		457	maptile::_save_objects (object_freezer &f, int flags)
		458	{
		459	coroapi::cede ();
		460
		461	if (flags & IO_HEADER)
		462	_save_header (f);
		463
		464	if (!spaces)
		465	return false;
		466
		467	for (int i = 0; i < size (); ++i)
		468	{
		469	#if 0 // disabled, there still seem to be races somewhere
		470	static int cede_count = 0;
		471
		472	if (cede_count >= 500)
582	{	473	{
		474	cede_count = 0;
		475	coroapi::cede ();
		476	}
		477	#endif
		478
		479	int unique = 0;
		480	for (object *op = spaces [i].bot; op; op = op->above)
		481	{
		482	#if 0
		483	// count per-object, but cede only when modification-safe
		484	cede_count++;
		485	#endif
		486
		487	if (op->flag [FLAG_UNIQUE] && op->flag [FLAG_IS_FLOOR])
583	unique = 0;	488	unique = 1;
584	/* check for unique items, or unique squares */	489
585	for (otmp = GET_MAP_OB (m, i, j); otmp; otmp = otmp->above)	490	if (!op->can_map_save ())
		491	continue;
		492
		493	if (unique || op->flag [FLAG_UNIQUE])
586	{	494	{
587	if (QUERY_FLAG (otmp, FLAG_UNIQUE) || QUERY_FLAG (otmp, FLAG_OBJ_SAVE_ON_OVL))	495	if (flags & IO_UNIQUES)
588	unique = 1;	496	op->write (f);
589
590	if (!(mapflags & (MAP_OVERLAY | MAP_PLAYER_UNIQUE) || unique))
591	SET_FLAG (otmp, FLAG_OBJ_ORIGINAL);
592	}	497	}
		498	else if (flags & IO_OBJECTS)
		499	op->write (f);
593	}	500	}
594	}	501	}
595		502
596	op->destroy ();	503	coroapi::cede ();
597	link_multipart_objects (m);
598	}
599		504
600	/* This saves all the objects on the map in a non destructive fashion.	505	return true;
601	* Modified by MSW 2001-07-01 to do in a single pass - reduces code,	506	}
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		507
611	/* first pass - save one-part objects */	508	bool
612	for (i = 0; i < m->width; i++)	509	maptile::_load_objects (const char *path, bool skip_header)
613	for (j = 0; j < m->height; j++)	510	{
		511	object_thawer f (path);
		512
		513	if (!f)
		514	return false;
		515
		516	f.next ();
		517
		518	if (skip_header)
		519	for (;;)
614	{	520	{
615	unique = 0;	521	keyword kw = f.kw;
616		522	f.skip ();
617	for (op = m->at (i, j).bot; op; op = op->above)	523	if (kw == KW_end)
618	{	524	break;
619	if (op->flag [FLAG_UNIQUE] && op->flag [FLAG_IS_FLOOR])
620	unique = 1;
621
622	if (op->type == PLAYER)
623	continue;
624
625	if (op->head || op->owner)
626	continue;
627
628	if (unique || op->flag [FLAG_UNIQUE])
629	save_object (fp2, op, 1);
630	else if (flag == 0 || (flag == 2 && (!op->flag [FLAG_OBJ_ORIGINAL] && !op->flag [FLAG_UNPAID])))
631	save_object (fp, op, 1);
632	}
633	}	525	}
		526
		527	return _load_objects (f);
		528	}
		529
		530	bool
		531	maptile::_save_objects (const char *path, int flags)
		532	{
		533	object_freezer freezer;
		534
		535	if (!_save_objects (freezer, flags))
		536	return false;
		537
		538	return freezer.save (path);
634	}	539	}
635		540
636	maptile::maptile ()	541	maptile::maptile ()
637	{	542	{
638	in_memory = MAP_SWAPPED;	543	in_memory = MAP_SWAPPED;
		544
639	/* The maps used to pick up default x and y values from the	545	/* The maps used to pick up default x and y values from the
640	* map archetype. Mimic that behaviour.	546	* map archetype. Mimic that behaviour.
641	*/	547	*/
642	this->width = 16;	548	width = 16;
643	this->height = 16;	549	height = 16;
		550	timeout = 300;
		551	max_nrof = 1000; // 1000 items of anything
		552	max_volume = 2000000; // 2m³
		553	}
		554
		555	maptile::maptile (int w, int h)
		556	{
		557	in_memory = MAP_SWAPPED;
		558
		559	width = w;
		560	height = h;
644	this->reset_timeout = 0;	561	reset_timeout = 0;
645	this->timeout = 300;	562	timeout = 300;
646	this->enter_x = 0;	563	enter_x = 0;
647	this->enter_y = 0;	564	enter_y = 0;
648	/*set part to -1 indicating conversion to weather map not yet done */
649	this->worldpartx = -1;
650	this->worldparty = -1;
651	}
652		565
653	/*	566	alloc ();
654	* Allocates, initialises, and returns a pointer to a maptile.
655	* Modified to no longer take a path option which was not being
656	* used anyways. MSW 2001-07-01
657	*/
658	maptile *
659	get_linked_map (void)
660	{
661	maptile *mp, *map = new maptile;
662
663	for (mp = first_map; mp && mp->next; mp = mp->next);
664
665	if (mp == NULL)
666	first_map = map;
667	else
668	mp->next = map;
669
670	return map;
671	}	567	}
672		568
673	/*	569	/*
674	* Allocates the arrays contained in a maptile.	570	* Allocates the arrays contained in a maptile.
675	* This basically allocates the dynamic array of spaces for the	571	* This basically allocates the dynamic array of spaces for the
676	* map.	572	* map.
677	*/	573	*/
678	void	574	void
679	maptile::allocate ()	575	maptile::alloc ()
680	{	576	{
681	in_memory = MAP_IN_MEMORY;
682
683	/* Log this condition and free the storage. We could I suppose
684	* realloc, but if the caller is presuming the data will be intact,
685	* that is their poor assumption.
686	*/
687	if (spaces)	577	if (spaces)
688	{
689	LOG (llevError, "allocate_map called with already allocated map (%s)\n", path);
690	free (spaces);
691	}
692
693	spaces = (mapspace *)
694	calloc (1, width * height * sizeof (mapspace));
695
696	if (!spaces)
697	fatal (OUT_OF_MEMORY);
698	}
699
700	/* Create and returns a map of the specific size. Used
701	* in random map code and the editor.
702	*/
703	maptile *
704	get_empty_map (int sizex, int sizey)
705	{
706	maptile *m = get_linked_map ();
707
708	m->width = sizex;
709	m->height = sizey;
710	m->in_memory = MAP_SWAPPED;
711	m->allocate ();
712
713	return m;	578	return;
		579
		580	spaces = salloc0<mapspace> (size ());
714	}	581	}
715		582
716	/* Takes a string from a map definition and outputs a pointer to the array of shopitems	583	/* Takes a string from a map definition and outputs a pointer to the array of shopitems
717	* corresponding to that string. Memory is allocated for this, it must be freed	584	* corresponding to that string. Memory is allocated for this, it must be freed
718	* at a later date.	585	* at a later date.
719	* Called by parse_map_headers below.	586	* Called by parse_map_headers below.
720	*/	587	*/
721
722	static shopitems *	588	static shopitems *
723	parse_shop_string (const char *input_string)	589	parse_shop_string (const char *input_string)
724	{	590	{
725	char *shop_string, *p, *q, *next_semicolon, *next_colon;	591	char *shop_string, *p, *q, *next_semicolon, *next_colon;
726	shopitems *items = NULL;	592	shopitems *items = NULL;
…		…
735	p = strchr (p, ';');	601	p = strchr (p, ';');
736	number_of_entries++;	602	number_of_entries++;
737	if (p)	603	if (p)
738	p++;	604	p++;
739	}	605	}
		606
740	p = shop_string;	607	p = shop_string;
741	strip_endline (p);	608	strip_endline (p);
742	items = new shopitems[number_of_entries + 1];	609	items = new shopitems[number_of_entries + 1];
743	for (i = 0; i < number_of_entries; i++)	610	for (i = 0; i < number_of_entries; i++)
744	{	611	{
745	if (!p)	612	if (!p)
746	{	613	{
747	LOG (llevError, "parse_shop_string: I seem to have run out of string, that shouldn't happen.\n");	614	LOG (llevError, "parse_shop_string: I seem to have run out of string, that shouldn't happen.\n");
748	break;	615	break;
749	}	616	}
		617
750	next_semicolon = strchr (p, ';');	618	next_semicolon = strchr (p, ';');
751	next_colon = strchr (p, ':');	619	next_colon = strchr (p, ':');
752	/* if there is a stregth specified, figure out what it is, we'll need it soon. */	620	/* if there is a stregth specified, figure out what it is, we'll need it soon. */
753	if (next_colon && (!next_semicolon || next_colon < next_semicolon))	621	if (next_colon && (!next_semicolon || next_colon < next_semicolon))
754	items[i].strength = atoi (strchr (p, ':') + 1);	622	items[i].strength = atoi (strchr (p, ':') + 1);
…		…
781	* the next entry while we're at it, better print a warning	649	* the next entry while we're at it, better print a warning
782	*/	650	*/
783	LOG (llevError, "invalid type %s defined in shopitems in string %s\n", p, input_string);	651	LOG (llevError, "invalid type %s defined in shopitems in string %s\n", p, input_string);
784	}	652	}
785	}	653	}
		654
786	items[i].index = number_of_entries;	655	items[i].index = number_of_entries;
787	if (next_semicolon)	656	if (next_semicolon)
788	p = ++next_semicolon;	657	p = ++next_semicolon;
789	else	658	else
790	p = NULL;	659	p = NULL;
791	}	660	}
		661
792	free (shop_string);	662	free (shop_string);
793	return items;	663	return items;
794	}	664	}
795		665
796	/* opposite of parse string, this puts the string that was originally fed in to	666	/* opposite of parse string, this puts the string that was originally fed in to
…		…
805	for (i = 0; i < m->shopitems[0].index; i++)	675	for (i = 0; i < m->shopitems[0].index; i++)
806	{	676	{
807	if (m->shopitems[i].typenum)	677	if (m->shopitems[i].typenum)
808	{	678	{
809	if (m->shopitems[i].strength)	679	if (m->shopitems[i].strength)
810	{
811	sprintf (tmp, "%s:%d;", m->shopitems[i].name, m->shopitems[i].strength);	680	sprintf (tmp, "%s:%d;", m->shopitems[i].name, m->shopitems[i].strength);
812	}
813	else	681	else
814	sprintf (tmp, "%s;", m->shopitems[i].name);	682	sprintf (tmp, "%s;", m->shopitems[i].name);
815	}	683	}
816	else	684	else
817	{	685	{
818	if (m->shopitems[i].strength)	686	if (m->shopitems[i].strength)
819	{
820	sprintf (tmp, "*:%d;", m->shopitems[i].strength);	687	sprintf (tmp, "*:%d;", m->shopitems[i].strength);
821	}
822	else	688	else
823	sprintf (tmp, "*");	689	sprintf (tmp, "*");
824	}	690	}
		691
825	strcat (output_string, tmp);	692	strcat (output_string, tmp);
826	}	693	}
827	}	694	}
828		695
829	/* This loads the header information of the map. The header	696	/* This loads the header information of the map. The header
…		…
834	* put all the stuff in the map object so that names actually make	701	* put all the stuff in the map object so that names actually make
835	* sense.	702	* sense.
836	* This could be done in lex (like the object loader), but I think	703	* This could be done in lex (like the object loader), but I think
837	* currently, there are few enough fields this is not a big deal.	704	* currently, there are few enough fields this is not a big deal.
838	* MSW 2001-07-01	705	* MSW 2001-07-01
839	* return 0 on success, 1 on failure.
840	*/	706	*/
841		707	bool
842	static int	708	maptile::_load_header (object_thawer &thawer)
843	load_map_header (object_thawer & fp, maptile *m)
844	{	709	{
845	char buf[HUGE_BUF], msgbuf[HUGE_BUF], maplorebuf[HUGE_BUF], *key = NULL, *value, *end;	710	for (;;)
846	int msgpos = 0;
847	int maplorepos = 0;
848
849	while (fgets (buf, HUGE_BUF, fp) != NULL)
850	{	711	{
851	buf[HUGE_BUF - 1] = 0;	712	keyword kw = thawer.get_kv ();
852	key = buf;
853		713
854	while (isspace (*key))	714	switch (kw)
855	key++;
856
857	if (*key == 0)
858	continue; /* empty line */
859
860	value = strchr (key, ' ');
861
862	if (!value)
863	{	715	{
864	if ((end = strchr (key, '\n')))	716	case KW_msg:
865	*end = 0;	717	thawer.get_ml (KW_endmsg, msg);
		718	break;
		719
		720	case KW_lore: // CF+ extension
		721	thawer.get_ml (KW_endlore, maplore);
		722	break;
		723
		724	case KW_maplore:
		725	thawer.get_ml (KW_endmaplore, maplore);
		726	break;
		727
		728	case KW_arch:
		729	if (strcmp (thawer.get_str (), "map"))
		730	LOG (llevError, "%s: loading map and got a non 'arch map' line (arch %s), skipping.\n", &path, thawer.get_str ());
		731	break;
		732
		733	case KW_oid:
		734	thawer.get (this, thawer.get_sint32 ());
		735	break;
		736
		737	case KW_file_format_version: break; // nop
		738
		739	case KW_name: thawer.get (name); break;
		740	case KW_attach: thawer.get (attach); break;
		741	case KW_reset_time: thawer.get (reset_time); break;
		742	case KW_shopgreed: thawer.get (shopgreed); break;
		743	case KW_shopmin: thawer.get (shopmin); break;
		744	case KW_shopmax: thawer.get (shopmax); break;
		745	case KW_shoprace: thawer.get (shoprace); break;
		746	case KW_outdoor: thawer.get (outdoor); break;
		747	case KW_temp: thawer.get (temp); break;
		748	case KW_pressure: thawer.get (pressure); break;
		749	case KW_humid: thawer.get (humid); break;
		750	case KW_windspeed: thawer.get (windspeed); break;
		751	case KW_winddir: thawer.get (winddir); break;
		752	case KW_sky: thawer.get (sky); break;
		753
		754	case KW_per_player: thawer.get (per_player); break;
		755	case KW_per_party: thawer.get (per_party); break;
		756
		757	case KW_region: default_region = region::find (thawer.get_str ()); break;
		758	case KW_shopitems: shopitems = parse_shop_string (thawer.get_str ()); break;
		759
		760	// old names new names
		761	case KW_hp: case KW_enter_x: thawer.get (enter_x); break;
		762	case KW_sp: case KW_enter_y: thawer.get (enter_y); break;
		763	case KW_x: case KW_width: thawer.get (width); break;
		764	case KW_y: case KW_height: thawer.get (height); break;
		765	case KW_weight: case KW_reset_timeout: thawer.get (reset_timeout); break;
		766	case KW_value: case KW_swap_time: thawer.get (timeout); break;
		767	case KW_level: case KW_difficulty: thawer.get (difficulty); difficulty = clamp (difficulty, 1, settings.max_level); break;
		768	case KW_invisible: case KW_darkness: thawer.get (darkness); break;
		769	case KW_stand_still: case KW_fixed_resettime: thawer.get (fixed_resettime); break;
		770
		771	case KW_tile_path_1: thawer.get (tile_path [0]); break;
		772	case KW_tile_path_2: thawer.get (tile_path [1]); break;
		773	case KW_tile_path_3: thawer.get (tile_path [2]); break;
		774	case KW_tile_path_4: thawer.get (tile_path [3]); break;
		775
		776	case KW_end:
		777	return true;
		778
		779	default:
		780	if (!thawer.parse_error ("map", 0))
		781	return false;
		782	break;
866	}	783	}
867	else
868	{
869	*value = 0;
870	value++;
871	end = strchr (value, '\n');
872
873	while (isspace (*value))
874	{
875	value++;
876
877	if (*value == '\0' || value == end)
878	{
879	/* Nothing but spaces. */
880	value = NULL;
881	break;
882	}
883	}
884	}
885
886	if (!end)
887	{
888	LOG (llevError, "Error loading map header - did not find a newline - perhaps file is truncated? Buf=%s\n", buf);
889	return 1;
890	}
891
892	/* key is the field name, value is what it should be set
893	* to. We've already done the work to null terminate key,
894	* and strip off any leading spaces for both of these.
895	* We have not touched the newline at the end of the line -
896	* these are needed for some values. the end pointer
897	* points to the first of the newlines.
898	* value could be NULL! It would be easy enough to just point
899	* this to "" to prevent cores, but that would let more errors slide
900	* through.
901	*
902	* First check for entries that do not use the value parameter, then
903	* validate that value is given and check for the remaining entries
904	* that use the parameter.
905	*/
906
907	if (!strcmp (key, "msg"))
908	{
909	while (fgets (buf, HUGE_BUF, fp) != NULL)
910	{
911	if (!strcmp (buf, "endmsg\n"))
912	break;
913	else
914	{
915	/* slightly more efficient than strcat */
916	strcpy (msgbuf + msgpos, buf);
917	msgpos += strlen (buf);
918	}
919	}
920	/* There are lots of maps that have empty messages (eg, msg/endmsg
921	* with nothing between). There is no reason in those cases to
922	* keep the empty message. Also, msgbuf contains garbage data
923	* when msgpos is zero, so copying it results in crashes
924	*/
925	if (msgpos != 0)
926	m->msg = strdup (msgbuf);
927	}
928	else if (!strcmp (key, "maplore"))
929	{
930	while (fgets (buf, HUGE_BUF, fp) != NULL)
931	{
932	if (!strcmp (buf, "endmaplore\n"))
933	break;
934	else
935	{
936	/* slightly more efficient than strcat */
937	strcpy (maplorebuf + maplorepos, buf);
938	maplorepos += strlen (buf);
939	}
940	}
941	if (maplorepos != 0)
942	m->maplore = strdup (maplorebuf);
943	}
944	else if (!strcmp (key, "end"))
945	{
946	break;
947	}
948	else if (value == NULL)
949	{
950	LOG (llevError, "Got '%s' line without parameter in map header\n", key);
951	}
952	else if (!strcmp (key, "arch"))
953	{
954	/* This is an oddity, but not something we care about much. */
955	if (strcmp (value, "map\n"))
956	LOG (llevError, "loading map and got a non 'arch map' line(%s %s)?\n", key, value);
957	}
958	else if (!strcmp (key, "name"))
959	{
960	*end = 0;
961	m->name = strdup (value);
962	}
963	/* first strcmp value on these are old names supported
964	* for compatibility reasons. The new values (second) are
965	* what really should be used.
966	*/
967	else if (!strcmp (key, "oid"))
968	fp.get (m, atoi (value));
969	else if (!strcmp (key, "attach"))
970	m->attach = value;
971	else if (!strcmp (key, "hp") || !strcmp (key, "enter_x"))
972	m->enter_x = atoi (value);
973	else if (!strcmp (key, "sp") || !strcmp (key, "enter_y"))
974	m->enter_y = atoi (value);
975	else if (!strcmp (key, "x") || !strcmp (key, "width"))
976	m->width = atoi (value);
977	else if (!strcmp (key, "y") || !strcmp (key, "height"))
978	m->height = atoi (value);
979	else if (!strcmp (key, "weight") || !strcmp (key, "reset_timeout"))
980	m->reset_timeout = atoi (value);
981	else if (!strcmp (key, "value") || !strcmp (key, "swap_time"))
982	m->timeout = atoi (value);
983	else if (!strcmp (key, "level") || !strcmp (key, "difficulty"))
984	m->difficulty = clamp (atoi (value), 1, settings.max_level);
985	else if (!strcmp (key, "invisible") || !strcmp (key, "darkness"))
986	m->darkness = atoi (value);
987	else if (!strcmp (key, "stand_still") || !strcmp (key, "fixed_resettime"))
988	m->fixed_resettime = atoi (value);
989	else if (!strcmp (key, "unique"))
990	m->unique = atoi (value);
991	else if (!strcmp (key, "template"))
992	m->templatemap = atoi (value);
993	else if (!strcmp (key, "region"))
994	m->region = get_region_by_name (value);
995	else if (!strcmp (key, "shopitems"))
996	{
997	*end = 0;
998	m->shopitems = parse_shop_string (value);
999	}
1000	else if (!strcmp (key, "shopgreed"))
1001	m->shopgreed = atof (value);
1002	else if (!strcmp (key, "shopmin"))
1003	m->shopmin = atol (value);
1004	else if (!strcmp (key, "shopmax"))
1005	m->shopmax = atol (value);
1006	else if (!strcmp (key, "shoprace"))
1007	{
1008	*end = 0;
1009	m->shoprace = strdup (value);
1010	}
1011	else if (!strcmp (key, "outdoor"))
1012	m->outdoor = atoi (value);
1013	else if (!strcmp (key, "temp"))
1014	m->temp = atoi (value);
1015	else if (!strcmp (key, "pressure"))
1016	m->pressure = atoi (value);
1017	else if (!strcmp (key, "humid"))
1018	m->humid = atoi (value);
1019	else if (!strcmp (key, "windspeed"))
1020	m->windspeed = atoi (value);
1021	else if (!strcmp (key, "winddir"))
1022	m->winddir = atoi (value);
1023	else if (!strcmp (key, "sky"))
1024	m->sky = atoi (value);
1025	else if (!strcmp (key, "nosmooth"))
1026	m->nosmooth = atoi (value);
1027	else if (!strncmp (key, "tile_path_", 10))
1028	{
1029	int tile = atoi (key + 10);
1030
1031	if (tile < 1 || tile > 4)
1032	{
1033	LOG (llevError, "load_map_header: tile location %d out of bounds (%s)\n", tile, m->path);
1034	}
1035	else
1036	{
1037	char *path;
1038
1039	*end = 0;
1040
1041	if (m->tile_path[tile - 1])
1042	{
1043	LOG (llevError, "load_map_header: tile location %d duplicated (%s)\n", tile, m->path);
1044	free (m->tile_path[tile - 1]);
1045	m->tile_path[tile - 1] = NULL;
1046	}
1047
1048	if (check_path (value, 1) != -1)
1049	{
1050	/* The unadorned path works. */
1051	path = value;
1052	}
1053	else
1054	{
1055	/* Try again; it could be a relative exit. */
1056
1057	path = path_combine_and_normalize (m->path, value);
1058
1059	if (check_path (path, 1) == -1)
1060	{
1061	LOG (llevError, "get_map_header: Bad tile path %s %s\n", m->path, value);
1062	path = NULL;
1063	}
1064	}
1065
1066	if (editor)
1067	{
1068	/* Use the value as in the file. */
1069	m->tile_path[tile - 1] = strdup (value);
1070	}
1071	else if (path != NULL)
1072	{
1073	/* Use the normalized value. */
1074	m->tile_path[tile - 1] = strdup (path);
1075	}
1076	} /* end if tile direction (in)valid */
1077	}
1078	else
1079	LOG (llevError, "Got unknown value in map header: %s %s\n", key, value);
1080	}
1081
1082	if (!key || strcmp (key, "end"))
1083	{	784	}
1084	LOG (llevError, "Got premature eof on map header!\n");
1085	return 1;
1086	}
1087		785
1088	return 0;	786	abort ();
1089	}	787	}
1090		788
1091	/*	789	bool
1092	* Opens the file "filename" and reads information about the map	790	maptile::_load_header (const char *path)
1093	* from the given file, and stores it in a newly allocated
1094	* maptile. A pointer to this structure is returned, or NULL on failure.
1095	* flags correspond to those in map.h. Main ones used are
1096	* MAP_PLAYER_UNIQUE, in which case we don't do any name changes, and
1097	* MAP_BLOCK, in which case we block on this load. This happens in all
1098	* cases, no matter if this flag is set or not.
1099	* MAP_STYLE: style map - don't add active objects, don't add to server
1100	* managed map list.
1101	*/
1102
1103	maptile *
1104	load_original_map (const char *filename, int flags)
1105	{	791	{
1106	maptile *m;
1107	char pathname[MAX_BUF];
1108
1109	if (flags & MAP_PLAYER_UNIQUE)
1110	strcpy (pathname, filename);
1111	else if (flags & MAP_OVERLAY)
1112	strcpy (pathname, create_overlay_pathname (filename));
1113	else
1114	strcpy (pathname, create_pathname (filename));
1115
1116	LOG (llevDebug, "load_original_map(%x): %s (%s)\n", flags, filename, pathname);
1117
1118	object_thawer thawer (pathname);	792	object_thawer thawer (path);
1119		793
1120	if (!thawer)	794	if (!thawer)
1121	return 0;	795	return false;
1122		796
1123	m = get_linked_map ();	797	return _load_header (thawer);
1124
1125	strcpy (m->path, filename);
1126	if (load_map_header (thawer, m))
1127	{
1128	LOG (llevError, "Error loading map header for %s, flags=%d\n", filename, flags);
1129	delete_map (m);
1130	return 0;
1131	}
1132
1133	m->allocate ();
1134
1135	m->in_memory = MAP_LOADING;
1136	load_objects (m, thawer, flags & (MAP_BLOCK | MAP_STYLE));
1137
1138	m->in_memory = MAP_IN_MEMORY;
1139	if (!m->difficulty)
1140	m->difficulty = calculate_difficulty (m);
1141	set_map_reset_time (m);
1142	m->instantiate ();
1143	return (m);
1144	}
1145
1146	/*
1147	* Loads a map, which has been loaded earlier, from file.
1148	* Return the map object we load into (this can change from the passed
1149	* option if we can't find the original map)
1150	*/
1151
1152	static maptile *
1153	load_temporary_map (maptile *m)
1154	{
1155	char buf[MAX_BUF];
1156
1157	if (!m->tmpname)
1158	{
1159	LOG (llevError, "No temporary filename for map %s\n", m->path);
1160	strcpy (buf, m->path);
1161	delete_map (m);
1162	m = load_original_map (buf, 0);
1163	if (m == NULL)
1164	return NULL;
1165	fix_auto_apply (m); /* Chests which open as default */
1166	return m;
1167	}
1168
1169	object_thawer thawer (m->tmpname);
1170
1171	if (!thawer)
1172	{
1173	strcpy (buf, m->path);
1174	delete_map (m);
1175	m = load_original_map (buf, 0);
1176	if (!m)
1177	return NULL;
1178	fix_auto_apply (m); /* Chests which open as default */
1179	return m;
1180	}
1181
1182	if (load_map_header (thawer, m))
1183	{
1184	LOG (llevError, "Error loading map header for %s (%s)\n", m->path, m->tmpname);
1185	delete_map (m);
1186	m = load_original_map (m->path, 0);
1187	return NULL;
1188	}
1189
1190	m->allocate ();
1191
1192	m->in_memory = MAP_LOADING;
1193	load_objects (m, thawer, 0);
1194
1195	m->in_memory = MAP_IN_MEMORY;
1196	INVOKE_MAP (SWAPIN, m);
1197	return m;
1198	}
1199
1200	/*
1201	* Loads a map, which has been loaded earlier, from file.
1202	* Return the map object we load into (this can change from the passed
1203	* option if we can't find the original map)
1204	*/
1205
1206	maptile *
1207	load_overlay_map (const char *filename, maptile *m)
1208	{
1209	char pathname[MAX_BUF];
1210
1211	strcpy (pathname, create_overlay_pathname (filename));
1212
1213	object_thawer thawer (pathname);
1214
1215	if (!thawer)
1216	return m;
1217
1218	if (load_map_header (thawer, m))
1219	{
1220	LOG (llevError, "Error loading map header for overlay %s (%s)\n", m->path, pathname);
1221	delete_map (m);
1222	m = load_original_map (m->path, 0);
1223	return 0;
1224	}
1225	/*m->allocate ();*/
1226
1227	m->in_memory = MAP_LOADING;
1228	load_objects (m, thawer, MAP_OVERLAY);
1229
1230	m->in_memory = MAP_IN_MEMORY;
1231	return m;
1232	}	798	}
1233		799
1234	/******************************************************************************	800	/******************************************************************************
1235	* This is the start of unique map handling code	801	* This is the start of unique map handling code
1236	*****************************************************************************/	802	*****************************************************************************/
1237		803
1238	/* This goes through map 'm' and removed any unique items on the map. */	804	/* This goes through the maptile and removed any unique items on the map. */
1239	static void	805	void
1240	delete_unique_items (maptile *m)	806	maptile::clear_unique_items ()
1241	{	807	{
1242	int i, j, unique;	808	for (int i = 0; i < size (); ++i)
1243	object *op, *next;
1244
1245	for (i = 0; i < m->width; i++)
1246	for (j = 0; j < m->height; j++)
1247	{	809	{
1248	unique = 0;	810	int unique = 0;
1249		811	for (object *op = spaces [i].bot; op; )
1250	for (op = GET_MAP_OB (m, i, j); op; op = next)
1251	{	812	{
1252	next = op->above;	813	object *above = op->above;
1253		814
1254	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))	815	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))
1255	unique = 1;	816	unique = 1;
1256		817
1257	if (op->head == NULL && (QUERY_FLAG (op, FLAG_UNIQUE) || unique))	818	if (op->head == NULL && (QUERY_FLAG (op, FLAG_UNIQUE) || unique))
1258	{	819	{
1259	op->destroy_inv (false);	820	op->destroy_inv (false);
1260	op->destroy ();	821	op->destroy ();
1261	}	822	}
1262	}
1263	}
1264	}
1265		823
1266		824	op = above;
1267	/*
1268	* Loads unique objects from file(s) into the map which is in memory
1269	* m is the map to load unique items into.
1270	*/
1271	static void
1272	load_unique_objects (maptile *m)
1273	{
1274	int count;
1275	char firstname[MAX_BUF];
1276
1277	for (count = 0; count < 10; count++)
1278	{
1279	sprintf (firstname, "%s.v%02d", create_items_path (m->path), count);
1280	if (!access (firstname, R_OK))
1281	break;
1282	}
1283	/* If we get here, we did not find any map */
1284	if (count == 10)
1285	return;
1286
1287	object_thawer thawer (firstname);
1288
1289	if (!thawer)
1290	return;
1291
1292	m->in_memory = MAP_LOADING;
1293	if (m->tmpname == NULL) /* if we have loaded unique items from */
1294	delete_unique_items (m); /* original map before, don't duplicate them */
1295
1296	load_objects (m, thawer, 0);
1297
1298	m->in_memory = MAP_IN_MEMORY;
1299	}
1300
1301	/*
1302	* Saves a map to file. If flag is set, it is saved into the same
1303	* file it was (originally) loaded from. Otherwise a temporary
1304	* filename will be genarated, and the file will be stored there.
1305	* The temporary filename will be stored in the maptileure.
1306	* If the map is unique, we also save to the filename in the map
1307	* (this should have been updated when first loaded)
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	}	825	}
1330	else
1331	strcpy (filename, m->path);
1332
1333	make_path_to_file (filename);
1334	}
1335	else
1336	{	826	}
1337	if (!m->tmpname)	827	}
1338	m->tmpname = tempnam (settings.tmpdir, NULL);
1339		828
1340	strcpy (filename, m->tmpname);	829	bool
		830	maptile::_save_header (object_freezer &freezer)
		831	{
		832	#define MAP_OUT(k) freezer.put (KW_ ## k, k)
		833	#define MAP_OUT2(k,v) freezer.put (KW_ ## k, v)
		834
		835	MAP_OUT2 (arch, "map");
		836
		837	if (name) MAP_OUT (name);
		838	MAP_OUT (swap_time);
		839	MAP_OUT (reset_time);
		840	MAP_OUT (reset_timeout);
		841	MAP_OUT (fixed_resettime);
		842	MAP_OUT (difficulty);
		843
		844	if (default_region) MAP_OUT2 (region, default_region->name);
		845
		846	if (shopitems)
1341	}	847	{
		848	char shop[MAX_BUF];
		849	print_shop_string (this, shop);
		850	MAP_OUT2 (shopitems, shop);
		851	}
1342		852
1343	LOG (llevDebug, "Saving map %s to %s\n", m->path, filename);	853	MAP_OUT (shopgreed);
1344	m->in_memory = MAP_SAVING;	854	MAP_OUT (shopmin);
		855	MAP_OUT (shopmax);
		856	if (shoprace) MAP_OUT (shoprace);
		857	MAP_OUT (darkness);
		858	MAP_OUT (width);
		859	MAP_OUT (height);
		860	MAP_OUT (enter_x);
		861	MAP_OUT (enter_y);
1345		862
		863	if (msg) freezer.put (KW_msg , KW_endmsg , msg);
		864	if (maplore) freezer.put (KW_maplore, KW_endmaplore, maplore);
		865
		866	MAP_OUT (outdoor);
		867	MAP_OUT (temp);
		868	MAP_OUT (pressure);
		869	MAP_OUT (humid);
		870	MAP_OUT (windspeed);
		871	MAP_OUT (winddir);
		872	MAP_OUT (sky);
		873
		874	MAP_OUT (per_player);
		875	MAP_OUT (per_party);
		876
		877	if (tile_path [0]) MAP_OUT2 (tile_path_1, tile_path [0]);
		878	if (tile_path [1]) MAP_OUT2 (tile_path_2, tile_path [1]);
		879	if (tile_path [2]) MAP_OUT2 (tile_path_3, tile_path [2]);
		880	if (tile_path [3]) MAP_OUT2 (tile_path_4, tile_path [3]);
		881
		882	freezer.put (this);
		883	freezer.put (KW_end);
		884
		885	return true;
		886	}
		887
		888	bool
		889	maptile::_save_header (const char *path)
		890	{
1346	object_freezer freezer;	891	object_freezer freezer;
1347		892
1348	/* legacy */	893	if (!_save_header (freezer))
1349	fprintf (freezer, "arch map\n");	894	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		895
1413	/* Save any tiling information, except on overlays */	896	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	}	897	}
1449		898
1450	/*	899	/*
1451	* Remove and free all objects in the given map.	900	* Remove and free all objects in the given map.
1452	*/	901	*/
1453	void	902	void
1454	free_all_objects (maptile *m)	903	maptile::clear ()
1455	{	904	{
		905	sfree (regions, size ()), regions = 0;
		906	free (regionmap), regionmap = 0;
		907
1456	if (!m->spaces)	908	if (spaces)
1457	return;
1458
1459	for (int i = 0; i < m->width; i++)
1460	for (int j = 0; j < m->height; j++)
1461	{	909	{
1462	mapspace &ms = m->at (i, j);	910	for (mapspace *ms = spaces + size (); ms-- > spaces; )
1463
1464	while (object *op = ms.bot)	911	while (object *op = ms->bot)
1465	{	912	{
1466	if (op->head)	913	if (op->head)
1467	op = op->head;	914	op = op->head;
1468		915
1469	op->destroy_inv (false);	916	op->destroy_inv (false);
1470	op->destroy ();	917	op->destroy ();
1471	}	918	}
		919
		920	sfree (spaces, size ()), spaces = 0;
1472	}	921	}
1473	}
1474		922
1475	/*	923	if (buttons)
1476	* Frees everything allocated by the given maptileure.	924	free_objectlinkpt (buttons), buttons = 0;
1477	* don't free tmpname - our caller is left to do that	925	}
1478	*/	926
1479	void	927	void
1480	free_map (maptile *m, int flag)	928	maptile::clear_header ()
1481	{	929	{
1482	if (!m->in_memory) //TODO: makes no sense to me?	930	name = 0;
1483	return;	931	msg = 0;
1484		932	maplore = 0;
1485	m->in_memory = MAP_SAVING;	933	shoprace = 0;
1486
1487	// TODO: use new/delete
1488
1489	if (flag && m->spaces)
1490	free_all_objects (m);
1491
1492	free (m->name), m->name = 0;
1493	free (m->spaces), m->spaces = 0;
1494	free (m->msg), m->msg = 0;
1495	free (m->maplore), m->maplore = 0;
1496	free (m->shoprace), m->shoprace = 0;
1497	delete [] m->shopitems, m->shopitems = 0;	934	delete [] shopitems, shopitems = 0;
1498
1499	if (m->buttons)
1500	free_objectlinkpt (m->buttons), m->buttons = 0;
1501		935
1502	for (int i = 0; i < 4; i++)	936	for (int i = 0; i < 4; i++)
1503	{
1504	if (m->tile_path[i])
1505	free (m->tile_path[i]), m->tile_path[i] = 0;
1506
1507	m->tile_map[i] = 0;	937	tile_path [i] = 0;
1508	}
1509
1510	m->in_memory = MAP_SWAPPED;
1511	}	938	}
1512		939
1513	maptile::~maptile ()	940	maptile::~maptile ()
1514	{	941	{
1515	free_map (this, 1);	942	assert (destroyed ());
1516	free (tmpname);
1517	}	943	}
1518		944
1519	void	945	void
1520	maptile::do_destroy ()	946	maptile::clear_links_to (maptile *m)
1521	{	947	{
1522	attachable::do_destroy ();
1523
1524	free_all_objects (this);
1525
1526	/* We need to look through all the maps and see if any maps	948	/* We need to look through all the maps and see if any maps
1527	* are pointing at this one for tiling information. Since	949	* are pointing at this one for tiling information. Since
1528	* tiling can be asymetric, we just can not look to see which	950	* tiling can be asymetric, we just can not look to see which
1529	* maps this map tiles with and clears those.	951	* maps this map tiles with and clears those.
1530	*/	952	*/
1531	//TODO: non-euclidean-tiling MUST GO
1532	for (maptile *m = first_map; m; m = m->next)
1533	for (int i = 0; i < 4; i++)	953	for (int i = 0; i < 4; i++)
1534	if (m->tile_map[i] == this)	954	if (tile_map[i] == m)
1535	m->tile_map[i] = 0;	955	tile_map[i] = 0;
1536
1537	if (first_map == this)
1538	first_map = next;
1539	else
1540	for (maptile *m = first_map; m; m = m->next)
1541	if (m->next = this)
1542	{
1543	m->next = next;
1544	break;
1545	}
1546	}	956	}
1547		957
1548	//TODO: must go
1549	void	958	void
1550	delete_map (maptile *m)	959	maptile::do_destroy ()
1551	{	960	{
1552	if (m)	961	attachable::do_destroy ();
1553	m->destroy ();	962
		963	clear ();
1554	}	964	}
1555		965
1556	/*	966	/*
1557	* Makes sure the given map is loaded and swapped in.	967	* Updates every button on the map (by calling update_button() for them).
1558	* name is path name of the map.
1559	* flags meaning:
1560	* 0x1 (MAP_FLUSH): flush the map - always load from the map directory,
1561	* and don't do unique items or the like.
1562	* 0x2 (MAP_PLAYER_UNIQUE) - this is a unique map for each player.
1563	* dont do any more name translation on it.
1564	*	968	*/
1565	* Returns a pointer to the given map.	969	void
1566	*/	970	maptile::update_buttons ()
1567	maptile *
1568	ready_map_name (const char *name, int flags)
1569	{	971	{
1570	if (!name)	972	for (oblinkpt *obp = buttons; obp; obp = obp->next)
1571	return 0;	973	for (objectlink *ol = obp->link; ol; ol = ol->next)
1572
1573	/* Have we been at this level before? */
1574	maptile *m = has_been_loaded (name);
1575
1576	/* Map is good to go, so just return it */
1577	if (m && (m->in_memory == MAP_LOADING || m->in_memory == MAP_IN_MEMORY))
1578	return m;
1579
1580	/* unique maps always get loaded from their original location, and never
1581	* a temp location. Likewise, if map_flush is set, or we have never loaded
1582	* this map, load it now. I removed the reset checking from here -
1583	* it seems the probability of a player trying to enter a map that should
1584	* reset but hasn't yet is quite low, and removing that makes this function
1585	* a bit cleaner (and players probably shouldn't rely on exact timing for
1586	* resets in any case - if they really care, they should use the 'maps command.
1587	*/
1588	if ((flags & (MAP_FLUSH | MAP_PLAYER_UNIQUE)) || !m)
1589	{	974	{
1590	/* first visit or time to reset */	975	if (!ol->ob)
1591	if (m)
1592	{	976	{
1593	clean_tmp_map (m); /* Doesn't make much difference */	977	LOG (llevError, "Internal error in update_button (%s (%dx%d), connected %ld).\n",
1594	delete_map (m);	978	ol->ob ? (const char *) ol->ob->name : "null", ol->ob ? ol->ob->x : -1, ol->ob ? ol->ob->y : -1, obp->value);
		979	continue;
1595	}	980	}
1596		981
1597	/* create and load a map */	982	if (ol->ob->type == BUTTON || ol->ob->type == PEDESTAL)
1598	if (flags & MAP_PLAYER_UNIQUE)
1599	LOG (llevDebug, "Trying to load map %s.\n", name);
1600	else
1601	LOG (llevDebug, "Trying to load map %s.\n", create_pathname (name));
1602
1603	//eval_pv ("$x = Event::time", 1);//D
1604	if (!(m = load_original_map (name, (flags & MAP_PLAYER_UNIQUE))))
1605	return (NULL);
1606	//eval_pv ("warn \"LOAD \", Event::time - $x", 1);//D
1607
1608	fix_auto_apply (m); /* Chests which open as default */
1609
1610	/* If a player unique map, no extra unique object file to load.
1611	* if from the editor, likewise.
1612	*/
1613	if (!(flags & (MAP_FLUSH | MAP_PLAYER_UNIQUE)))
1614	load_unique_objects (m);
1615
1616	if (!(flags & (MAP_FLUSH | MAP_PLAYER_UNIQUE | MAP_OVERLAY)))
1617	{	983	{
1618	m = load_overlay_map (name, m);	984	update_button (ol->ob);
1619	if (m == NULL)	985	break;
1620	return NULL;
1621	}	986	}
1622
1623	if (flags & MAP_PLAYER_UNIQUE)
1624	INVOKE_MAP (SWAPIN, m);
1625
1626	}	987	}
1627	else
1628	{
1629	/* If in this loop, we found a temporary map, so load it up. */
1630
1631	m = load_temporary_map (m);
1632	if (m == NULL)
1633	return NULL;
1634	load_unique_objects (m);
1635
1636	clean_tmp_map (m);
1637	m->in_memory = MAP_IN_MEMORY;
1638	/* tempnam() on sun systems (probably others) uses malloc
1639	* to allocated space for the string. Free it here.
1640	* In some cases, load_temporary_map above won't find the
1641	* temporary map, and so has reloaded a new map. If that
1642	* is the case, tmpname is now null
1643	*/
1644	if (m->tmpname)
1645	free (m->tmpname);
1646	m->tmpname = NULL;
1647	/* It's going to be saved anew anyway */
1648	}
1649
1650	/* Below here is stuff common to both first time loaded maps and
1651	* temp maps.
1652	*/
1653
1654	decay_objects (m); /* start the decay */
1655	/* In case other objects press some buttons down */
1656	update_buttons (m);
1657	if (m->outdoor)
1658	set_darkness_map (m);
1659	/* run the weather over this map */
1660	weather_effect (name);
1661	return m;
1662	}	988	}
1663
1664		989
1665	/*	990	/*
1666	* This routine is supposed to find out the difficulty of the map.	991	* This routine is supposed to find out the difficulty of the map.
1667	* difficulty does not have a lot to do with character level,	992	* difficulty does not have a lot to do with character level,
1668	* but does have a lot to do with treasure on the map.	993	* but does have a lot to do with treasure on the map.
…		…
1670	* Difficulty can now be set by the map creature. If the value stored	995	* Difficulty can now be set by the map creature. If the value stored
1671	* in the map is zero, then use this routine. Maps should really	996	* in the map is zero, then use this routine. Maps should really
1672	* have a difficulty set than using this function - human calculation	997	* have a difficulty set than using this function - human calculation
1673	* is much better than this functions guesswork.	998	* is much better than this functions guesswork.
1674	*/	999	*/
1675
1676	int	1000	int
1677	calculate_difficulty (maptile *m)	1001	maptile::estimate_difficulty () const
1678	{	1002	{
1679	object *op;
1680	archetype *at;
1681	int x, y, i;
1682	long monster_cnt = 0;	1003	long monster_cnt = 0;
1683	double avgexp = 0;	1004	double avgexp = 0;
1684	sint64 total_exp = 0;	1005	sint64 total_exp = 0;
1685		1006
1686	if (m->difficulty)	1007	for (mapspace *ms = spaces + size (); ms-- > spaces; )
1687	{	1008	for (object *op = ms->bot; op; op = op->above)
1688	LOG (llevDebug, "Using stored map difficulty: %d\n", m->difficulty);
1689	return m->difficulty;
1690	}
1691
1692	for (x = 0; x < m->width; x++)
1693	for (y = 0; y < m->height; y++)
1694	for (op = GET_MAP_OB (m, x, y); op != NULL; op = op->above)
1695	{	1009	{
1696	if (QUERY_FLAG (op, FLAG_MONSTER))	1010	if (QUERY_FLAG (op, FLAG_MONSTER))
1697	{	1011	{
1698	total_exp += op->stats.exp;	1012	total_exp += op->stats.exp;
1699	monster_cnt++;	1013	monster_cnt++;
1700	}	1014	}
1701		1015
1702	if (QUERY_FLAG (op, FLAG_GENERATOR))	1016	if (QUERY_FLAG (op, FLAG_GENERATOR))
1703	{	1017	{
1704	total_exp += op->stats.exp;	1018	total_exp += op->stats.exp;
		1019
1705	at = type_to_archetype (GENERATE_TYPE (op));	1020	if (archetype *at = type_to_archetype (GENERATE_TYPE (op)))
1706
1707	if (at != NULL)
1708	total_exp += at->clone.stats.exp * 8;	1021	total_exp += at->clone.stats.exp * 8;
1709		1022
1710	monster_cnt++;	1023	monster_cnt++;
1711	}	1024	}
1712	}	1025	}
1713		1026
1714	avgexp = (double) total_exp / monster_cnt;	1027	avgexp = (double) total_exp / monster_cnt;
1715		1028
1716	for (i = 1; i <= settings.max_level; i++)	1029	for (int i = 1; i <= settings.max_level; i++)
1717	{
1718	if ((level_exp (i, 1) - level_exp (i - 1, 1)) > (100 * avgexp))	1030	if ((level_exp (i, 1) - level_exp (i - 1, 1)) > (100 * avgexp))
1719	{
1720	/* LOG(llevDebug, "Calculated difficulty for map: %s: %d\n", m->name, i); */
1721	return i;	1031	return i;
1722	}
1723	}
1724		1032
1725	return 1;	1033	return 1;
1726	}
1727
1728	void
1729	clean_tmp_map (maptile *m)
1730	{
1731	if (m->tmpname == NULL)
1732	return;
1733	INVOKE_MAP (CLEAN, m);
1734	(void) unlink (m->tmpname);
1735	}
1736
1737	void
1738	free_all_maps (void)
1739	{
1740	int real_maps = 0;
1741
1742	while (first_map)
1743	{
1744	/* I think some of the callers above before it gets here set this to be
1745	* saving, but we still want to free this data
1746	*/
1747	if (first_map->in_memory == MAP_SAVING)
1748	first_map->in_memory = MAP_IN_MEMORY;
1749	delete_map (first_map);
1750	real_maps++;
1751	}
1752	LOG (llevDebug, "free_all_maps: Freed %d maps\n", real_maps);
1753	}	1034	}
1754		1035
1755	/* change_map_light() - used to change map light level (darkness)	1036	/* change_map_light() - used to change map light level (darkness)
1756	* up or down. Returns true if successful. It should now be	1037	* up or down. Returns true if successful. It should now be
1757	* possible to change a value by more than 1.	1038	* possible to change a value by more than 1.
1758	* Move this from los.c to map.c since this is more related	1039	* Move this from los.c to map.c since this is more related
1759	* to maps than los.	1040	* to maps than los.
1760	* postive values make it darker, negative make it brighter	1041	* postive values make it darker, negative make it brighter
1761	*/	1042	*/
1762
1763	int	1043	int
1764	change_map_light (maptile *m, int change)	1044	maptile::change_map_light (int change)
1765	{	1045	{
1766	int new_level = m->darkness + change;	1046	int new_level = darkness + change;
1767		1047
1768	/* Nothing to do */	1048	/* Nothing to do */
1769	if (!change || (new_level <= 0 && m->darkness == 0) || (new_level >= MAX_DARKNESS && m->darkness >= MAX_DARKNESS))	1049	if (!change || (new_level <= 0 && darkness == 0) || (new_level >= MAX_DARKNESS && darkness >= MAX_DARKNESS))
1770	{
1771	return 0;	1050	return 0;
1772	}
1773		1051
1774	/* inform all players on the map */	1052	/* inform all players on the map */
1775	if (change > 0)	1053	if (change > 0)
1776	new_info_map (NDI_BLACK | NDI_UNIQUE, m, "It becomes darker.");	1054	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes darker.");
1777	else	1055	else
1778	new_info_map (NDI_BLACK | NDI_UNIQUE, m, "It becomes brighter.");	1056	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes brighter.");
1779		1057
1780	/* Do extra checking. since m->darkness is a unsigned value,	1058	/* Do extra checking. since darkness is a unsigned value,
1781	* we need to be extra careful about negative values.	1059	* we need to be extra careful about negative values.
1782	* In general, the checks below are only needed if change	1060	* In general, the checks below are only needed if change
1783	* is not +/-1	1061	* is not +/-1
1784	*/	1062	*/
1785	if (new_level < 0)	1063	if (new_level < 0)
1786	m->darkness = 0;	1064	darkness = 0;
1787	else if (new_level >= MAX_DARKNESS)	1065	else if (new_level >= MAX_DARKNESS)
1788	m->darkness = MAX_DARKNESS;	1066	darkness = MAX_DARKNESS;
1789	else	1067	else
1790	m->darkness = new_level;	1068	darkness = new_level;
1791		1069
1792	/* All clients need to get re-updated for the change */	1070	/* All clients need to get re-updated for the change */
1793	update_all_map_los (m);	1071	update_all_map_los (this);
1794	return 1;	1072	return 1;
1795	}	1073	}
1796		1074
1797	/*	1075	/*
1798	* This function updates various attributes about a specific space	1076	* This function updates various attributes about a specific space
…		…
1802	*/	1080	*/
1803	void	1081	void
1804	mapspace::update_ ()	1082	mapspace::update_ ()
1805	{	1083	{
1806	object *tmp, *last = 0;	1084	object *tmp, *last = 0;
1807	uint8 flags = 0, light = 0, anywhere = 0;	1085	uint8 flags = P_UPTODATE, light = 0, anywhere = 0;
1808	New_Face *top, *floor, *middle;
1809	object *top_obj, *floor_obj, *middle_obj;
1810	MoveType move_block = 0, move_slow = 0, move_on = 0, move_off = 0, move_allow = 0;	1086	MoveType move_block = 0, move_slow = 0, move_on = 0, move_off = 0, move_allow = 0;
1811		1087
1812	middle = blank_face;	1088	//object *middle = 0;
1813	top = blank_face;	1089	//object *top = 0;
1814	floor = blank_face;	1090	//object *floor = 0;
1815		1091	// this seems to generate better code than using locals, above
1816	middle_obj = 0;	1092	object *&top = faces_obj[0] = 0;
1817	top_obj = 0;	1093	object *&middle = faces_obj[1] = 0;
1818	floor_obj = 0;	1094	object *&floor = faces_obj[2] = 0;
1819		1095
1820	for (tmp = bot; tmp; last = tmp, tmp = tmp->above)	1096	for (tmp = bot; tmp; last = tmp, tmp = tmp->above)
1821	{	1097	{
1822	/* This could be made additive I guess (two lights better than	1098	/* This could be made additive I guess (two lights better than
1823	* one). But if so, it shouldn't be a simple additive - 2	1099	* one). But if so, it shouldn't be a simple additive - 2
…		…
1836	* Always put the player down for drawing.	1112	* Always put the player down for drawing.
1837	*/	1113	*/
1838	if (!tmp->invisible)	1114	if (!tmp->invisible)
1839	{	1115	{
1840	if ((tmp->type == PLAYER || QUERY_FLAG (tmp, FLAG_MONSTER)))	1116	if ((tmp->type == PLAYER || QUERY_FLAG (tmp, FLAG_MONSTER)))
1841	{
1842	top = tmp->face;
1843	top_obj = tmp;	1117	top = tmp;
1844	}
1845	else if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))	1118	else if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))
1846	{	1119	{
1847	/* If we got a floor, that means middle and top were below it,	1120	/* If we got a floor, that means middle and top were below it,
1848	* so should not be visible, so we clear them.	1121	* so should not be visible, so we clear them.
1849	*/	1122	*/
1850	middle = blank_face;	1123	middle = 0;
1851	top = blank_face;	1124	top = 0;
1852	floor = tmp->face;
1853	floor_obj = tmp;	1125	floor = tmp;
1854	}	1126	}
1855	/* Flag anywhere have high priority */	1127	/* Flag anywhere have high priority */
1856	else if (QUERY_FLAG (tmp, FLAG_SEE_ANYWHERE))	1128	else if (QUERY_FLAG (tmp, FLAG_SEE_ANYWHERE))
1857	{	1129	{
1858	middle = tmp->face;
1859
1860	middle_obj = tmp;	1130	middle = tmp;
1861	anywhere = 1;	1131	anywhere = 1;
1862	}	1132	}
1863	/* Find the highest visible face around. If equal	1133	/* Find the highest visible face around. If equal
1864	* visibilities, we still want the one nearer to the	1134	* visibilities, we still want the one nearer to the
1865	* top	1135	* top
1866	*/	1136	*/
1867	else if (middle == blank_face || (tmp->face->visibility > middle->visibility && !anywhere))	1137	else if (!middle || (::faces [tmp->face].visibility > ::faces [middle->face].visibility && !anywhere))
1868	{
1869	middle = tmp->face;
1870	middle_obj = tmp;	1138	middle = tmp;
1871	}
1872	}	1139	}
1873		1140
1874	if (tmp == tmp->above)	1141	if (tmp == tmp->above)
1875	{	1142	{
1876	LOG (llevError, "Error in structure of map\n");	1143	LOG (llevError, "Error in structure of map\n");
…		…
1911	* middle face. This should not happen, as we already have the	1178	* middle face. This should not happen, as we already have the
1912	* else statement above so middle should not get set. OTOH, it	1179	* else statement above so middle should not get set. OTOH, it
1913	* may be possible for the faces to match but be different objects.	1180	* may be possible for the faces to match but be different objects.
1914	*/	1181	*/
1915	if (top == middle)	1182	if (top == middle)
1916	middle = blank_face;	1183	middle = 0;
1917		1184
1918	/* There are three posibilities at this point:	1185	/* There are three posibilities at this point:
1919	* 1) top face is set, need middle to be set.	1186	* 1) top face is set, need middle to be set.
1920	* 2) middle is set, need to set top.	1187	* 2) middle is set, need to set top.
1921	* 3) neither middle or top is set - need to set both.	1188	* 3) neither middle or top is set - need to set both.
…		…
1926	/* Once we get to a floor, stop, since we already have a floor object */	1193	/* Once we get to a floor, stop, since we already have a floor object */
1927	if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))	1194	if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))
1928	break;	1195	break;
1929		1196
1930	/* If two top faces are already set, quit processing */	1197	/* If two top faces are already set, quit processing */
1931	if ((top != blank_face) && (middle != blank_face))	1198	if (top && middle)
1932	break;	1199	break;
1933		1200
1934	/* Only show visible faces, unless its the editor - show all */	1201	/* Only show visible faces */
1935	if (!tmp->invisible || editor)	1202	if (!tmp->invisible)
1936	{	1203	{
1937	/* Fill in top if needed */	1204	/* Fill in top if needed */
1938	if (top == blank_face)	1205	if (!top)
1939	{	1206	{
1940	top = tmp->face;
1941	top_obj = tmp;	1207	top = tmp;
1942	if (top == middle)	1208	if (top == middle)
1943	middle = blank_face;	1209	middle = 0;
1944	}	1210	}
1945	else	1211	else
1946	{	1212	{
1947	/* top is already set - we should only get here if	1213	/* top is already set - we should only get here if
1948	* middle is not set	1214	* middle is not set
1949	*	1215	*
1950	* Set the middle face and break out, since there is nothing	1216	* Set the middle face and break out, since there is nothing
1951	* more to fill in. We don't check visiblity here, since	1217	* more to fill in. We don't check visiblity here, since
1952	*	1218	*
1953	*/	1219	*/
1954	if (tmp->face != top)	1220	if (tmp != top)
1955	{	1221	{
1956	middle = tmp->face;
1957	middle_obj = tmp;	1222	middle = tmp;
1958	break;	1223	break;
1959	}	1224	}
1960	}	1225	}
1961	}	1226	}
1962	}	1227	}
1963		1228
1964	if (middle == floor)	1229	if (middle == floor)
1965	middle = blank_face;	1230	middle = 0;
1966		1231
1967	if (top == middle)	1232	if (top == middle)
1968	middle = blank_face;	1233	middle = 0;
1969		1234
1970	faces [0] = top; faces_obj [0] = top != blank_face ? top_obj : 0;	1235	#if 0
1971	faces [1] = middle; faces_obj [1] = middle != blank_face ? middle_obj : 0;	1236	faces_obj [0] = top;
1972	faces [2] = floor; faces_obj [2] = floor != blank_face ? floor_obj : 0;	1237	faces_obj [1] = middle;
		1238	faces_obj [2] = floor;
		1239	#endif
1973	}	1240	}
1974		1241
1975	void	1242	uint64
1976	set_map_reset_time (maptile *map)	1243	mapspace::volume () const
1977	{	1244	{
1978	int timeout;	1245	uint64 vol = 0;
1979		1246
1980	timeout = map->reset_timeout;	1247	for (object *op = top; op && !op->flag [FLAG_NO_PICK]; op = op->below)
1981	if (timeout <= 0)	1248	vol += op->volume ();
1982	timeout = MAP_DEFAULTRESET;
1983	if (timeout >= MAP_MAXRESET)
1984	timeout = MAP_MAXRESET;
1985	map->reset_time = time (0) + timeout;
1986	}
1987		1249
		1250	return vol;
		1251	}
		1252
1988	/* this updates the orig_map->tile_map[tile_num] value after loading	1253	/* this updates the orig_map->tile_map[tile_num] value after finding
1989	* the map. It also takes care of linking back the freshly loaded	1254	* the map. It also takes care of linking back the freshly found
1990	* maps tile_map values if it tiles back to this one. It returns	1255	* maps tile_map values if it tiles back to this one. It returns
1991	* the value of orig_map->tile_map[tile_num]. It really only does this	1256	* the value of orig_map->tile_map[tile_num].
1992	* so that it is easier for calling functions to verify success.
1993	*/	1257	*/
1994
1995	static maptile *	1258	static inline maptile *
1996	load_and_link_tiled_map (maptile *orig_map, int tile_num)	1259	find_and_link (maptile *orig_map, int tile_num)
1997	{	1260	{
		1261	maptile *mp = orig_map->tile_map [tile_num];
		1262
		1263	if (!mp)
		1264	{
		1265	mp = orig_map->find_sync (orig_map->tile_path [tile_num], orig_map);
		1266
		1267	if (!mp)
		1268	{
		1269	// emergency mode, manufacture a dummy map, this creates a memleak, but thats fine
		1270	LOG (llevError, "FATAL: cannot load tiled map %s from %s, leaking memory and worse!\n",
		1271	&orig_map->tile_path[tile_num], &orig_map->path);
		1272	mp = new maptile (1, 1);
		1273	mp->alloc ();
		1274	mp->in_memory = MAP_IN_MEMORY;
		1275	}
		1276	}
		1277
1998	int dest_tile = (tile_num + 2) % 4;	1278	int dest_tile = (tile_num + 2) % 4;
1999	char *path = path_combine_and_normalize (orig_map->path, orig_map->tile_path[tile_num]);
2000		1279
2001	orig_map->tile_map[tile_num] = ready_map_name (path, 0);	1280	orig_map->tile_map [tile_num] = mp;
2002		1281
2003	/* need to do a strcmp here as the orig_map->path is not a shared string */	1282	// optimisation: back-link map to origin map if euclidean
2004	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))	1283	//TODO: non-euclidean maps MUST GO
		1284	if (orig_map->tile_map[tile_num]->tile_path[dest_tile] == orig_map->path)
2005	orig_map->tile_map[tile_num]->tile_map[dest_tile] = orig_map;	1285	orig_map->tile_map[tile_num]->tile_map[dest_tile] = orig_map;
2006		1286
2007	return orig_map->tile_map[tile_num];	1287	return mp;
		1288	}
		1289
		1290	static inline void
		1291	load_and_link (maptile *orig_map, int tile_num)
		1292	{
		1293	find_and_link (orig_map, tile_num)->load_sync ();
2008	}	1294	}
2009		1295
2010	/* this returns TRUE if the coordinates (x,y) are out of	1296	/* this returns TRUE if the coordinates (x,y) are out of
2011	* map m. This function also takes into account any	1297	* map m. This function also takes into account any
2012	* tiling considerations, loading adjacant maps as needed.	1298	* tiling considerations, loading adjacant maps as needed.
2013	* This is the function should always be used when it	1299	* This is the function should always be used when it
2014	* necessary to check for valid coordinates.	1300	* necessary to check for valid coordinates.
2015	* This function will recursively call itself for the	1301	* This function will recursively call itself for the
2016	* tiled maps.	1302	* tiled maps.
2017	*
2018	*
2019	*/	1303	*/
2020	int	1304	int
2021	out_of_map (maptile *m, int x, int y)	1305	out_of_map (maptile *m, int x, int y)
2022	{	1306	{
2023	/* If we get passed a null map, this is obviously the	1307	/* If we get passed a null map, this is obviously the
…		…
2031	{	1315	{
2032	if (!m->tile_path[3])	1316	if (!m->tile_path[3])
2033	return 1;	1317	return 1;
2034		1318
2035	if (!m->tile_map[3] || m->tile_map[3]->in_memory != MAP_IN_MEMORY)	1319	if (!m->tile_map[3] || m->tile_map[3]->in_memory != MAP_IN_MEMORY)
2036	load_and_link_tiled_map (m, 3);	1320	find_and_link (m, 3);
2037		1321
2038	return (out_of_map (m->tile_map[3], x + m->tile_map[3]->width, y));	1322	return out_of_map (m->tile_map[3], x + m->tile_map[3]->width, y);
2039	}	1323	}
2040		1324
2041	if (x >= m->width)	1325	if (x >= m->width)
2042	{	1326	{
2043	if (!m->tile_path[1])	1327	if (!m->tile_path[1])
2044	return 1;	1328	return 1;
2045		1329
2046	if (!m->tile_map[1] || m->tile_map[1]->in_memory != MAP_IN_MEMORY)	1330	if (!m->tile_map[1] || m->tile_map[1]->in_memory != MAP_IN_MEMORY)
2047	load_and_link_tiled_map (m, 1);	1331	find_and_link (m, 1);
2048		1332
2049	return (out_of_map (m->tile_map[1], x - m->width, y));	1333	return out_of_map (m->tile_map[1], x - m->width, y);
2050	}	1334	}
2051		1335
2052	if (y < 0)	1336	if (y < 0)
2053	{	1337	{
2054	if (!m->tile_path[0])	1338	if (!m->tile_path[0])
2055	return 1;	1339	return 1;
2056		1340
2057	if (!m->tile_map[0] || m->tile_map[0]->in_memory != MAP_IN_MEMORY)	1341	if (!m->tile_map[0] || m->tile_map[0]->in_memory != MAP_IN_MEMORY)
2058	load_and_link_tiled_map (m, 0);	1342	find_and_link (m, 0);
2059		1343
2060	return (out_of_map (m->tile_map[0], x, y + m->tile_map[0]->height));	1344	return out_of_map (m->tile_map[0], x, y + m->tile_map[0]->height);
2061	}	1345	}
2062		1346
2063	if (y >= m->height)	1347	if (y >= m->height)
2064	{	1348	{
2065	if (!m->tile_path[2])	1349	if (!m->tile_path[2])
2066	return 1;	1350	return 1;
2067		1351
2068	if (!m->tile_map[2] || m->tile_map[2]->in_memory != MAP_IN_MEMORY)	1352	if (!m->tile_map[2] || m->tile_map[2]->in_memory != MAP_IN_MEMORY)
2069	load_and_link_tiled_map (m, 2);	1353	find_and_link (m, 2);
2070		1354
2071	return (out_of_map (m->tile_map[2], x, y - m->height));	1355	return out_of_map (m->tile_map[2], x, y - m->height);
2072	}	1356	}
2073		1357
2074	/* Simple case - coordinates are within this local	1358	/* Simple case - coordinates are within this local
2075	* map.	1359	* map.
2076	*/	1360	*/
…		…
2079		1363
2080	/* This is basically the same as out_of_map above, but	1364	/* This is basically the same as out_of_map above, but
2081	* instead we return NULL if no map is valid (coordinates	1365	* instead we return NULL if no map is valid (coordinates
2082	* out of bounds and no tiled map), otherwise it returns	1366	* out of bounds and no tiled map), otherwise it returns
2083	* the map as that the coordinates are really on, and	1367	* the map as that the coordinates are really on, and
2084	* updates x and y to be the localized coordinates.	1368	* updates x and y to be the localised coordinates.
2085	* Using this is more efficient of calling out_of_map	1369	* Using this is more efficient of calling out_of_map
2086	* and then figuring out what the real map is	1370	* and then figuring out what the real map is
2087	*/	1371	*/
2088	maptile *	1372	maptile *
2089	get_map_from_coord (maptile *m, sint16 * x, sint16 * y)	1373	maptile::xy_find (sint16 &x, sint16 &y)
2090	{	1374	{
2091
2092	if (*x < 0)	1375	if (x < 0)
2093	{	1376	{
2094	if (!m->tile_path[3])	1377	if (!tile_path[3])
2095	return 0;	1378	return 0;
2096	if (!m->tile_map[3] || m->tile_map[3]->in_memory != MAP_IN_MEMORY)
2097	load_and_link_tiled_map (m, 3);
2098		1379
		1380	find_and_link (this, 3);
2099	*x += m->tile_map[3]->width;	1381	x += tile_map[3]->width;
2100	return (get_map_from_coord (m->tile_map[3], x, y));	1382	return tile_map[3]->xy_find (x, y);
2101	}	1383	}
2102		1384
2103	if (*x >= m->width)	1385	if (x >= width)
2104	{	1386	{
2105	if (!m->tile_path[1])	1387	if (!tile_path[1])
2106	return 0;	1388	return 0;
2107		1389
2108	if (!m->tile_map[1] || m->tile_map[1]->in_memory != MAP_IN_MEMORY)	1390	find_and_link (this, 1);
2109	load_and_link_tiled_map (m, 1);
2110
2111	*x -= m->width;	1391	x -= width;
2112	return (get_map_from_coord (m->tile_map[1], x, y));	1392	return tile_map[1]->xy_find (x, y);
2113	}	1393	}
2114		1394
2115	if (*y < 0)	1395	if (y < 0)
2116	{	1396	{
2117	if (!m->tile_path[0])	1397	if (!tile_path[0])
2118	return 0;	1398	return 0;
2119		1399
2120	if (!m->tile_map[0] || m->tile_map[0]->in_memory != MAP_IN_MEMORY)	1400	find_and_link (this, 0);
2121	load_and_link_tiled_map (m, 0);
2122
2123	*y += m->tile_map[0]->height;	1401	y += tile_map[0]->height;
2124	return (get_map_from_coord (m->tile_map[0], x, y));	1402	return tile_map[0]->xy_find (x, y);
2125	}	1403	}
2126		1404
2127	if (*y >= m->height)	1405	if (y >= height)
2128	{	1406	{
2129	if (!m->tile_path[2])	1407	if (!tile_path[2])
2130	return 0;	1408	return 0;
2131		1409
2132	if (!m->tile_map[2] || m->tile_map[2]->in_memory != MAP_IN_MEMORY)	1410	find_and_link (this, 2);
2133	load_and_link_tiled_map (m, 2);
2134
2135	*y -= m->height;	1411	y -= height;
2136	return (get_map_from_coord (m->tile_map[2], x, y));	1412	return tile_map[2]->xy_find (x, y);
2137	}	1413	}
2138		1414
2139	/* Simple case - coordinates are within this local	1415	/* Simple case - coordinates are within this local
2140	* map.	1416	* map.
2141	*/	1417	*/
2142
2143	return m;	1418	return this;
2144	}	1419	}
2145		1420
2146	/**	1421	/**
2147	* Return whether map2 is adjacent to map1. If so, store the distance from	1422	* Return whether map2 is adjacent to map1. If so, store the distance from
2148	* map1 to map2 in dx/dy.	1423	* map1 to map2 in dx/dy.
2149	*/	1424	*/
2150	static int	1425	int
2151	adjacent_map (const maptile *map1, const maptile *map2, int *dx, int *dy)	1426	adjacent_map (const maptile *map1, const maptile *map2, int *dx, int *dy)
2152	{	1427	{
2153	if (!map1 || !map2)	1428	if (!map1 || !map2)
2154	return 0;	1429	return 0;
2155		1430
		1431	//TODO: this doesn't actually check corretcly when intermediate maps are not loaded
		1432	//fix: compare paths instead (this is likely faster, too!)
2156	if (map1 == map2)	1433	if (map1 == map2)
2157	{	1434	{
2158	*dx = 0;	1435	*dx = 0;
2159	*dy = 0;	1436	*dy = 0;
2160
2161	}	1437	}
2162	else if (map1->tile_map[0] == map2)	1438	else if (map1->tile_map[0] == map2)
2163	{ /* up */	1439	{ /* up */
2164	*dx = 0;	1440	*dx = 0;
2165	*dy = -map2->height;	1441	*dy = -map2->height;
…		…
2176	}	1452	}
2177	else if (map1->tile_map[3] == map2)	1453	else if (map1->tile_map[3] == map2)
2178	{ /* left */	1454	{ /* left */
2179	*dx = -map2->width;	1455	*dx = -map2->width;
2180	*dy = 0;	1456	*dy = 0;
2181
2182	}	1457	}
2183	else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[1] == map2)	1458	else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[1] == map2)
2184	{ /* up right */	1459	{ /* up right */
2185	*dx = map1->tile_map[0]->width;	1460	*dx = map1->tile_map[0]->width;
2186	*dy = -map1->tile_map[0]->height;	1461	*dy = -map1->tile_map[0]->height;
…		…
2217	}	1492	}
2218	else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[2] == map2)	1493	else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[2] == map2)
2219	{ /* left down */	1494	{ /* left down */
2220	*dx = -map1->tile_map[3]->width;	1495	*dx = -map1->tile_map[3]->width;
2221	*dy = map1->tile_map[3]->height;	1496	*dy = map1->tile_map[3]->height;
2222
2223	}	1497	}
2224	else	1498	else
2225	{ /* not "adjacent" enough */
2226	return 0;	1499	return 0;
2227	}
2228		1500
2229	return 1;	1501	return 1;
		1502	}
		1503
		1504	maptile *
		1505	maptile::xy_load (sint16 &x, sint16 &y)
		1506	{
		1507	maptile *map = xy_find (x, y);
		1508
		1509	if (map)
		1510	map->load_sync ();
		1511
		1512	return map;
		1513	}
		1514
		1515	maptile *
		1516	get_map_from_coord (maptile *m, sint16 *x, sint16 *y)
		1517	{
		1518	return m->xy_load (*x, *y);
2230	}	1519	}
2231		1520
2232	/* From map.c	1521	/* From map.c
2233	* This is used by get_player to determine where the other	1522	* This is used by get_player to determine where the other
2234	* creature is. get_rangevector takes into account map tiling,	1523	* creature is. get_rangevector takes into account map tiling,
2235	* so you just can not look the the map coordinates and get the	1524	* so you just can not look the the map coordinates and get the
2236	* righte value. distance_x/y are distance away, which	1525	* righte value. distance_x/y are distance away, which
2237	* can be negativbe. direction is the crossfire direction scheme	1526	* can be negative. direction is the crossfire direction scheme
2238	* that the creature should head. part is the part of the	1527	* that the creature should head. part is the part of the
2239	* monster that is closest.	1528	* monster that is closest.
2240	*	1529	*
2241	* get_rangevector looks at op1 and op2, and fills in the	1530	* get_rangevector looks at op1 and op2, and fills in the
2242	* structure for op1 to get to op2.	1531	* structure for op1 to get to op2.
…		…
2247	* be unexpected	1536	* be unexpected
2248	*	1537	*
2249	* currently, the only flag supported (0x1) is don't translate for	1538	* currently, the only flag supported (0x1) is don't translate for
2250	* closest body part of 'op1'	1539	* closest body part of 'op1'
2251	*/	1540	*/
2252
2253	void	1541	void
2254	get_rangevector (object *op1, object *op2, rv_vector * retval, int flags)	1542	get_rangevector (object *op1, object *op2, rv_vector * retval, int flags)
2255	{	1543	{
2256	if (!adjacent_map (op1->map, op2->map, &retval->distance_x, &retval->distance_y))	1544	if (!adjacent_map (op1->map, op2->map, &retval->distance_x, &retval->distance_y))
2257	{	1545	{
2258	/* be conservative and fill in _some_ data */	1546	/* be conservative and fill in _some_ data */
2259	retval->distance = 100000;	1547	retval->distance = 10000;
2260	retval->distance_x = 32767;	1548	retval->distance_x = 10000;
2261	retval->distance_y = 32767;	1549	retval->distance_y = 10000;
2262	retval->direction = 0;	1550	retval->direction = 0;
2263	retval->part = 0;	1551	retval->part = 0;
2264	}	1552	}
2265	else	1553	else
2266	{	1554	{
…		…
2271		1559
2272	best = op1;	1560	best = op1;
2273	/* If this is multipart, find the closest part now */	1561	/* If this is multipart, find the closest part now */
2274	if (!(flags & 0x1) && op1->more)	1562	if (!(flags & 0x1) && op1->more)
2275	{	1563	{
2276	object *tmp;
2277	int best_distance = retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y, tmpi;	1564	int best_distance = retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y, tmpi;
2278		1565
2279	/* we just take the offset of the piece to head to figure	1566	/* we just take the offset of the piece to head to figure
2280	* distance instead of doing all that work above again	1567	* distance instead of doing all that work above again
2281	* since the distance fields we set above are positive in the	1568	* since the distance fields we set above are positive in the
2282	* same axis as is used for multipart objects, the simply arithmetic	1569	* same axis as is used for multipart objects, the simply arithmetic
2283	* below works.	1570	* below works.
2284	*/	1571	*/
2285	for (tmp = op1->more; tmp != NULL; tmp = tmp->more)	1572	for (object *tmp = op1->more; tmp; tmp = tmp->more)
2286	{	1573	{
2287	tmpi = (op1->x - tmp->x + retval->distance_x) * (op1->x - tmp->x + retval->distance_x) +	1574	tmpi = (op1->x - tmp->x + retval->distance_x) * (op1->x - tmp->x + retval->distance_x) +
2288	(op1->y - tmp->y + retval->distance_y) * (op1->y - tmp->y + retval->distance_y);	1575	(op1->y - tmp->y + retval->distance_y) * (op1->y - tmp->y + retval->distance_y);
2289	if (tmpi < best_distance)	1576	if (tmpi < best_distance)
2290	{	1577	{
2291	best_distance = tmpi;	1578	best_distance = tmpi;
2292	best = tmp;	1579	best = tmp;
2293	}	1580	}
2294	}	1581	}
		1582
2295	if (best != op1)	1583	if (best != op1)
2296	{	1584	{
2297	retval->distance_x += op1->x - best->x;	1585	retval->distance_x += op1->x - best->x;
2298	retval->distance_y += op1->y - best->y;	1586	retval->distance_y += op1->y - best->y;
2299	}	1587	}
2300	}	1588	}
		1589
2301	retval->part = best;	1590	retval->part = best;
2302	retval->distance = isqrt (retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y);	1591	retval->distance = upos_max (abs (retval->distance_x), abs (retval->distance_y));
2303	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);	1592	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);
2304	}	1593	}
2305	}	1594	}
2306		1595
2307	/* this is basically the same as get_rangevector above, but instead of	1596	/* this is basically the same as get_rangevector above, but instead of
…		…
2312	* flags has no meaning for this function at this time - I kept it in to	1601	* flags has no meaning for this function at this time - I kept it in to
2313	* be more consistant with the above function and also in case they are needed	1602	* be more consistant with the above function and also in case they are needed
2314	* for something in the future. Also, since no object is pasted, the best	1603	* for something in the future. Also, since no object is pasted, the best
2315	* field of the rv_vector is set to NULL.	1604	* field of the rv_vector is set to NULL.
2316	*/	1605	*/
2317
2318	void	1606	void
2319	get_rangevector_from_mapcoord (const maptile *m, int x, int y, const object *op2, rv_vector * retval, int flags)	1607	get_rangevector_from_mapcoord (const maptile *m, int x, int y, const object *op2, rv_vector *retval, int flags)
2320	{	1608	{
2321	if (!adjacent_map (m, op2->map, &retval->distance_x, &retval->distance_y))	1609	if (!adjacent_map (m, op2->map, &retval->distance_x, &retval->distance_y))
2322	{	1610	{
2323	/* be conservative and fill in _some_ data */	1611	/* be conservative and fill in _some_ data */
2324	retval->distance = 100000;	1612	retval->distance = 100000;
…		…
2331	{	1619	{
2332	retval->distance_x += op2->x - x;	1620	retval->distance_x += op2->x - x;
2333	retval->distance_y += op2->y - y;	1621	retval->distance_y += op2->y - y;
2334		1622
2335	retval->part = NULL;	1623	retval->part = NULL;
2336	retval->distance = isqrt (retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y);	1624	retval->distance = idistance (retval->distance_x, retval->distance_y);
2337	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);	1625	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);
2338	}	1626	}
2339	}	1627	}
2340		1628
2341	/* Returns true of op1 and op2 are effectively on the same map	1629	/* Returns true of op1 and op2 are effectively on the same map
2342	* (as related to map tiling). Note that this looks for a path from	1630	* (as related to map tiling). Note that this looks for a path from
2343	* op1 to op2, so if the tiled maps are assymetric and op2 has a path	1631	* op1 to op2, so if the tiled maps are asymetric and op2 has a path
2344	* to op1, this will still return false.	1632	* to op1, this will still return false.
2345	* Note we only look one map out to keep the processing simple	1633	* Note we only look one map out to keep the processing simple
2346	* and efficient. This could probably be a macro.	1634	* and efficient. This could probably be a macro.
2347	* MSW 2001-08-05	1635	* MSW 2001-08-05
2348	*/	1636	*/
…		…
2361	op->remove ();	1649	op->remove ();
2362		1650
2363	return insert_ob_in_map_at (op, this, originator, flags, x, y);	1651	return insert_ob_in_map_at (op, this, originator, flags, x, y);
2364	}	1652	}
2365		1653
		1654	region *
		1655	maptile::region (int x, int y) const
		1656	{
		1657	if (regions
		1658	&& regionmap
		1659	&& !OUT_OF_REAL_MAP (this, x, y))
		1660	if (struct region *reg = regionmap [regions [y * width + x]])
		1661	return reg;
		1662
		1663	if (default_region)
		1664	return default_region;
		1665
		1666	return ::region::default_region ();
		1667	}
		1668
		1669	/* picks a random object from a style map.
		1670	* Redone by MSW so it should be faster and not use static
		1671	* variables to generate tables.
		1672	*/
		1673	object *
		1674	maptile::pick_random_object () const
		1675	{
		1676	/* while returning a null object will result in a crash, that
		1677	* is actually preferable to an infinite loop. That is because
		1678	* most servers will automatically restart in case of crash.
		1679	* Change the logic on getting the random space - shouldn't make
		1680	* any difference, but this seems clearer to me.
		1681	*/
		1682	for (int i = 1000; --i;)
		1683	{
		1684	object *pick = at (rndm (width), rndm (height)).bot;
		1685
		1686	// do not prefer big monsters just because they are big.
		1687	if (pick && pick->head_ () == pick)
		1688	return pick->head_ ();
		1689	}
		1690
		1691	// instead of crashing in the unlikely(?) case, try to return *something*
		1692	return get_archetype ("blocked");
		1693	}
		1694

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