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Comparing deliantra/server/common/map.C (file contents):
Revision 1.34 by root, Sun Dec 3 02:04:57 2006 UTC vs.
Revision 1.92 by root, Sun Feb 18 17:24:16 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	#ifndef WIN32 /* ---win32 exclude header */
30	# include <unistd.h>	25	#include <unistd.h>
31	#endif /* win32 */	26
		27	#include "global.h"
		28	#include "funcpoint.h"
		29
		30	#include "loader.h"
32		31
33	#include "path.h"	32	#include "path.h"
34
35
36	/*
37	* Returns the maptile which has a name matching the given argument.
38	* return NULL if no match is found.
39	*/
40
41	maptile *
42	has_been_loaded (const char *name)
43	{
44	maptile *map;
45
46	if (!name || !*name)
47	return 0;
48	for (map = first_map; map; map = map->next)
49	if (!strcmp (name, map->path))
50	break;
51	return (map);
52	}
53		33
54	/*	34	/*
55	* This makes a path absolute outside the world of Crossfire.	35	* This makes a path absolute outside the world of Crossfire.
56	* In other words, it prepends LIBDIR/MAPDIR/ to the given path	36	* In other words, it prepends LIBDIR/MAPDIR/ to the given path
57	* and returns the pointer to a static array containing the result.	37	* and returns the pointer to a static array containing the result.
58	* it really should be called create_mapname	38	* it really should be called create_mapname
59	*/	39	*/
60
61	const char *	40	const char *
62	create_pathname (const char *name)	41	create_pathname (const char *name)
63	{	42	{
64	static char buf[MAX_BUF];	43	static char buf[8192];
65
66	/* Why? having extra / doesn't confuse unix anyplace? Dependancies
67	* someplace else in the code? msw 2-17-97
68	*/
69	if (*name == '/')
70	sprintf (buf, "%s/%s%s", settings.datadir, settings.mapdir, name);
71	else
72	sprintf (buf, "%s/%s/%s", settings.datadir, settings.mapdir, name);	44	snprintf (buf, sizeof (buf), "%s/%s/%s", settings.datadir, settings.mapdir, name);
73	return (buf);	45	return buf;
74	}	46	}
75
76	/*
77	* same as create_pathname, but for the overlay maps.
78	*/
79
80	const char *
81	create_overlay_pathname (const char *name)
82	{
83	static char buf[MAX_BUF];
84
85	/* Why? having extra / doesn't confuse unix anyplace? Dependancies
86	* someplace else in the code? msw 2-17-97
87	*/
88	if (*name == '/')
89	sprintf (buf, "%s/%s%s", settings.localdir, settings.mapdir, name);
90	else
91	sprintf (buf, "%s/%s/%s", settings.localdir, settings.mapdir, name);
92	return (buf);
93	}
94
95	/*
96	* same as create_pathname, but for the template maps.
97	*/
98
99	const char *
100	create_template_pathname (const char *name)
101	{
102	static char buf[MAX_BUF];
103
104	/* Why? having extra / doesn't confuse unix anyplace? Dependancies
105	* someplace else in the code? msw 2-17-97
106	*/
107	if (*name == '/')
108	sprintf (buf, "%s/%s%s", settings.localdir, settings.templatedir, name);
109	else
110	sprintf (buf, "%s/%s/%s", settings.localdir, settings.templatedir, name);
111	return (buf);
112	}
113
114	/*
115	* This makes absolute path to the itemfile where unique objects
116	* will be saved. Converts '/' to '@'. I think it's essier maintain
117	* files than full directory structure, but if this is problem it can
118	* be changed.
119	*/
120	static const char *
121	create_items_path (const char *s)
122	{
123	static char buf[MAX_BUF];
124	char *t;
125
126	if (*s == '/')
127	s++;
128
129	sprintf (buf, "%s/%s/", settings.localdir, settings.uniquedir);
130
131	for (t = buf + strlen (buf); *s; s++, t++)
132	if (*s == '/')
133	*t = '@';
134	else
135	*t = *s;
136	*t = 0;
137	return (buf);
138	}
139
140		47
141	/*	48	/*
142	* This function checks if a file with the given path exists.	49	* This function checks if a file with the given path exists.
143	* -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
144	* is returned.	51	* is returned.
…		…
151	* 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.
152	* 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
153	* replaced by an access instead (similar to the windows one, but	60	* replaced by an access instead (similar to the windows one, but
154	* that seems to be missing the prepend_dir processing	61	* that seems to be missing the prepend_dir processing
155	*/	62	*/
156
157	int	63	int
158	check_path (const char *name, int prepend_dir)	64	check_path (const char *name, int prepend_dir)
159	{	65	{
160	char buf[MAX_BUF];	66	char buf[MAX_BUF];
161		67
162	#ifndef WIN32
163	char *endbuf;	68	char *endbuf;
164	struct stat statbuf;	69	struct stat statbuf;
165	int mode = 0;	70	int mode = 0;
166	#endif
167		71
168	if (prepend_dir)	72	if (prepend_dir)
169	strcpy (buf, create_pathname (name));	73	assign (buf, create_pathname (name));
170	else	74	else
171	strcpy (buf, name);	75	assign (buf, name);
172	#ifdef WIN32 /* ***win32: check this sucker in windows style. */
173	return (_access (buf, 0));
174	#else
175		76
176	/* old method (strchr(buf, '\0')) seemd very odd to me -	77	/* old method (strchr(buf, '\0')) seemd very odd to me -
177	* this method should be equivalant and is clearer.	78	* this method should be equivalant and is clearer.
178	* Can not use strcat because we need to cycle through	79	* Can not use strcat because we need to cycle through
179	* all the names.	80	* all the names.
…		…
192	if ((statbuf.st_mode & S_IWGRP && getegid () == statbuf.st_gid) ||	93	if ((statbuf.st_mode & S_IWGRP && getegid () == statbuf.st_gid) ||
193	(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))
194	mode |= 2;	95	mode |= 2;
195		96
196	return (mode);	97	return (mode);
197	#endif
198	}
199
200	/*
201	* Prints out debug-information about a map.
202	* Dumping these at llevError doesn't seem right, but is
203	* necessary to make sure the information is in fact logged.
204	*/
205
206	void
207	dump_map (const maptile *m)
208	{
209	LOG (llevError, "Map %s status: %d.\n", m->path, m->in_memory);
210	LOG (llevError, "Size: %dx%d Start: %d,%d\n", MAP_WIDTH (m), MAP_HEIGHT (m), MAP_ENTER_X (m), MAP_ENTER_Y (m));
211
212	if (m->msg != NULL)
213	LOG (llevError, "Message:\n%s", m->msg);
214
215	if (m->maplore != NULL)
216	LOG (llevError, "Lore:\n%s", m->maplore);
217
218	if (m->tmpname != NULL)
219	LOG (llevError, "Tmpname: %s\n", m->tmpname);
220
221	LOG (llevError, "Difficulty: %d\n", m->difficulty);
222	LOG (llevError, "Darkness: %d\n", m->darkness);
223	}
224
225	/*
226	* Prints out debug-information about all maps.
227	* This basically just goes through all the maps and calls
228	* dump_map on each one.
229	*/
230
231	void
232	dump_all_maps (void)
233	{
234	maptile *m;
235
236	for (m = first_map; m != NULL; m = m->next)
237	{
238	dump_map (m);
239	}
240	}	98	}
241		99
242	/* This rolls up wall, blocks_magic, blocks_view, etc, all into	100	/* This rolls up wall, blocks_magic, blocks_view, etc, all into
243	* one function that just returns a P_.. value (see map.h)	101	* one function that just returns a P_.. value (see map.h)
244	* it will also do map translation for tiled maps, returning	102	* it will also do map translation for tiled maps, returning
…		…
248	* is needed. The case of not passing values is if we're just	106	* is needed. The case of not passing values is if we're just
249	* checking for the existence of something on those spaces, but	107	* checking for the existence of something on those spaces, but
250	* don't expect to insert/remove anything from those spaces.	108	* don't expect to insert/remove anything from those spaces.
251	*/	109	*/
252	int	110	int
253	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)
254	{	112	{
255	sint16 newx, newy;	113	sint16 newx = x;
256	int retval = 0;	114	sint16 newy = y;
257	maptile *mp;
258		115
259	if (out_of_map (oldmap, x, y))	116	maptile *mp = get_map_from_coord (oldmap, &newx, &newy);
		117
		118	if (!mp)
260	return P_OUT_OF_MAP;	119	return P_OUT_OF_MAP;
261	newx = x;
262	newy = y;
263	mp = get_map_from_coord (oldmap, &newx, &newy);
264	if (mp != oldmap)
265	retval |= P_NEW_MAP;
266	if (newmap)
267	*newmap = mp;
268	if (nx)
269	*nx = newx;
270	if (ny)
271	*ny = newy;
272		120
273	retval |= mp->spaces[newx + mp->width * newy].flags;	121	if (newmap) *newmap = mp;
		122	if (nx) *nx = newx;
		123	if (ny) *ny = newy;
274		124
275	return retval;	125	return mp->at (newx, newy).flags () | (mp != oldmap ? P_NEW_MAP : 0);
276	}	126	}
277		127
278	/*	128	/*
279	* Returns true if the given coordinate is blocked except by the	129	* Returns true if the given coordinate is blocked except by the
280	* object passed is not blocking. This is used with	130	* object passed is not blocking. This is used with
…		…
303	}	153	}
304		154
305	/* Save some cycles - instead of calling get_map_flags(), just get the value	155	/* Save some cycles - instead of calling get_map_flags(), just get the value
306	* directly.	156	* directly.
307	*/	157	*/
308	mflags = m->spaces[sx + m->width * sy].flags;	158	mflags = m->at (sx, sy).flags ();
309		159
310	blocked = GET_MAP_MOVE_BLOCK (m, sx, sy);	160	blocked = GET_MAP_MOVE_BLOCK (m, sx, sy);
311		161
312	/* If space is currently not blocked by anything, no need to	162	/* If space is currently not blocked by anything, no need to
313	* go further. Not true for players - all sorts of special	163	* go further. Not true for players - all sorts of special
…		…
332	/* We basically go through the stack of objects, and if there is	182	/* We basically go through the stack of objects, and if there is
333	* some other object that has NO_PASS or FLAG_ALIVE set, return	183	* some other object that has NO_PASS or FLAG_ALIVE set, return
334	* true. If we get through the entire stack, that must mean	184	* true. If we get through the entire stack, that must mean
335	* ob is blocking it, so return 0.	185	* ob is blocking it, so return 0.
336	*/	186	*/
337	for (tmp = GET_MAP_OB (m, sx, sy); tmp != NULL; tmp = tmp->above)	187	for (tmp = GET_MAP_OB (m, sx, sy); tmp; tmp = tmp->above)
338	{	188	{
339		189
340	/* This must be before the checks below. Code for inventory checkers. */	190	/* This must be before the checks below. Code for inventory checkers. */
341	if (tmp->type == CHECK_INV && OB_MOVE_BLOCK (ob, tmp))	191	if (tmp->type == CHECK_INV && OB_MOVE_BLOCK (ob, tmp))
342	{	192	{
…		…
379		229
380	}	230	}
381	return 0;	231	return 0;
382	}	232	}
383		233
384
385	/*	234	/*
386	* 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.
387	* This is meant for multi space objects - for single space objecs,	236	* This is meant for multi space objects - for single space objecs,
388	* just calling get_map_blocked and checking that against movement type	237	* just calling get_map_blocked and checking that against movement type
389	* of object. This function goes through all the parts of the	238	* of object. This function goes through all the parts of the
…		…
406	*	255	*
407	* Note this used to be arch_blocked, but with new movement	256	* Note this used to be arch_blocked, but with new movement
408	* code, we need to have actual object to check its move_type	257	* code, we need to have actual object to check its move_type
409	* against the move_block values.	258	* against the move_block values.
410	*/	259	*/
411
412	int	260	int
413	ob_blocked (const object *ob, maptile *m, sint16 x, sint16 y)	261	ob_blocked (const object *ob, maptile *m, sint16 x, sint16 y)
414	{	262	{
415	archetype *tmp;	263	archetype *tmp;
416	int flag;	264	int flag;
417	maptile *m1;	265	maptile *m1;
418	sint16 sx, sy;	266	sint16 sx, sy;
419		267
420	if (ob == NULL)	268	if (!ob)
421	{	269	{
422	flag = get_map_flags (m, &m1, x, y, &sx, &sy);	270	flag = get_map_flags (m, &m1, x, y, &sx, &sy);
423	if (flag & P_OUT_OF_MAP)	271	if (flag & P_OUT_OF_MAP)
424	return P_OUT_OF_MAP;	272	return P_OUT_OF_MAP;
425		273
426	/* don't have object, so don't know what types would block */	274	/* don't have object, so don't know what types would block */
427	return (GET_MAP_MOVE_BLOCK (m1, sx, sy));	275	return m1->at (sx, sy).move_block;
428	}	276	}
429		277
430	for (tmp = ob->arch; tmp != NULL; tmp = tmp->more)	278	for (tmp = ob->arch; tmp; tmp = tmp->more)
431	{	279	{
432	flag = get_map_flags (m, &m1, x + tmp->clone.x, y + tmp->clone.y, &sx, &sy);	280	flag = get_map_flags (m, &m1, x + tmp->clone.x, y + tmp->clone.y, &sx, &sy);
433		281
434	if (flag & P_OUT_OF_MAP)	282	if (flag & P_OUT_OF_MAP)
435	return P_OUT_OF_MAP;	283	return P_OUT_OF_MAP;
436	if (flag & P_IS_ALIVE)	284	if (flag & P_IS_ALIVE)
437	return P_IS_ALIVE;	285	return P_IS_ALIVE;
438		286
		287	mapspace &ms = m1->at (sx, sy);
		288
439	/* find_first_free_spot() calls this function. However, often	289	/* find_first_free_spot() calls this function. However, often
440	* 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)
441	* 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.
442	*/	292	*/
443		293
444	if (ob->move_type == 0 && GET_MAP_MOVE_BLOCK (m1, sx, sy) != MOVE_ALL)	294	if (ob->move_type == 0 && ms.move_block != MOVE_ALL)
445	continue;	295	continue;
446		296
447	/* Note it is intentional that we check ob - the movement type of the	297	/* Note it is intentional that we check ob - the movement type of the
448	* head of the object should correspond for the entire object.	298	* head of the object should correspond for the entire object.
449	*/	299	*/
450	if (OB_TYPE_MOVE_BLOCK (ob, GET_MAP_MOVE_BLOCK (m1, sx, sy)))	300	if (OB_TYPE_MOVE_BLOCK (ob, ms.move_block))
451	return AB_NO_PASS;	301	return P_NO_PASS;
452
453	}	302	}
		303
454	return 0;	304	return 0;
455	}	305	}
456		306
457	/* When the map is loaded, load_object does not actually insert objects	307	/* When the map is loaded, load_object does not actually insert objects
458	* 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
459	* and insert them properly.	309	* and insert them properly.
460	* The object 'container' is the object that contains the inventory.	310	* The object 'container' is the object that contains the inventory.
461	* This is needed so that we can update the containers weight.	311	* This is needed so that we can update the containers weight.
462	*/	312	*/
463
464	void	313	void
465	fix_container (object *container)	314	fix_container (object *container)
466	{	315	{
467	object *tmp = container->inv, *next;	316	object *tmp = container->inv, *next;
468		317
469	container->inv = NULL;	318	container->inv = 0;
470	while (tmp != NULL)	319	while (tmp)
471	{	320	{
472	next = tmp->below;	321	next = tmp->below;
473	if (tmp->inv)	322	if (tmp->inv)
474	fix_container (tmp);	323	fix_container (tmp);
		324
475	(void) insert_ob_in_ob (tmp, container);	325	insert_ob_in_ob (tmp, container);
476	tmp = next;	326	tmp = next;
477	}	327	}
		328
478	/* 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
479	* carrying.	330	* carrying.
480	*/	331	*/
481	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;
482	}	344	}
483		345
484	/* 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
485	* 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
486	* 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
487	* 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
488	* the more sections and not re-add sections for them.	350	* the more sections and not re-add sections for them.
489	*/	351	*/
490		352	void
491	static void	353	maptile::link_multipart_objects ()
492	link_multipart_objects (maptile *m)
493	{	354	{
494	int x, y;	355	if (!spaces)
495	object *tmp, *op, *last, *above;	356	return;
496	archetype *at;
497		357
498	for (x = 0; x < MAP_WIDTH (m); x++)	358	for (mapspace *ms = spaces + size (); ms-- > spaces; )
499	for (y = 0; y < MAP_HEIGHT (m); y++)	359	for (object *tmp = ms->bot; tmp; tmp = tmp->above)
500	for (tmp = get_map_ob (m, x, y); tmp != NULL; tmp = above)
501	{	360	{
502	above = tmp->above;
503
504	/* already multipart - don't do anything more */	361	/* already multipart - don't do anything more */
505	if (tmp->head || tmp->more)	362	if (!tmp->head && !tmp->more)
506	continue;	363	{
507
508	/* If there is nothing more to this object, this for loop	364	/* If there is nothing more to this object, this for loop
509	* won't do anything.	365	* won't do anything.
510	*/	366	*/
511	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)
512	{	372	{
513	op = arch_to_object (at);	373	op = arch_to_object (at);
514		374
515	/* update x,y coordinates */	375	/* update x,y coordinates */
516	op->x += tmp->x;	376	op->x += tmp->x;
517	op->y += tmp->y;	377	op->y += tmp->y;
518	op->head = tmp;	378	op->head = tmp;
519	op->map = m;	379	op->map = this;
520	last->more = op;	380	last->more = op;
521	op->name = tmp->name;	381	op->name = tmp->name;
522	op->title = tmp->title;	382	op->title = tmp->title;
		383
523	/* we could link all the parts onto tmp, and then just	384	/* we could link all the parts onto tmp, and then just
524	* 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,
525	* 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
526	* 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.
527	*/	388	*/
528	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);
529	} /* for at = tmp->arch->more */	390	}
530	} /* for objects on this space */	391	}
		392	}
531	}	393	}
532		394
533	/*	395	/*
534	* 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
535	* file pointer.	397	* file pointer.
536	* mapflags is the same as we get with load_original_map
537	*/	398	*/
		399	bool
		400	maptile::_load_objects (object_thawer &f)
		401	{
		402	for (;;)
		403	{
		404	coroapi::cede_every (1000); // cede once in a while
		405
		406	switch (f.kw)
		407	{
		408	case KW_arch:
		409	if (object *op = object::read (f, this))
		410	{
		411	if (op->inv)
		412	sum_weight (op);
		413
		414	insert_ob_in_map (op, this, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ON_TOP | INS_MAP_LOAD);
		415	}
		416
		417	continue;
		418
		419	case KW_EOF:
		420	return true;
		421
		422	default:
		423	if (!f.parse_error ("map file"))
		424	return false;
		425	break;
		426	}
		427
		428	f.next ();
		429	}
		430
		431	return true;
		432	}
		433
538	void	434	void
539	load_objects (maptile *m, object_thawer & fp, int mapflags)	435	maptile::activate ()
540	{	436	{
541	int i, j;	437	if (!spaces)
542	int unique;	438	return;
543	object *op, *prev = NULL, *last_more = NULL, *otmp;
544		439
545	op = get_object ();	440	for (mapspace *ms = spaces + size (); ms-- > spaces; )
546	op->map = m; /* To handle buttons correctly */	441	for (object *op = ms->bot; op; op = op->above)
		442	op->activate_recursive ();
		443	}
547		444
548	while ((i = load_object (fp, op, mapflags)))	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	static int cede_count = 0;
		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)
549	{	468	{
550	/* if the archetype for the object is null, means that we	469	#if 0 // temporarily disabled for improved(?) stability, schmorp #TODO#d#//D
551	* got an invalid object. Don't do anything with it - the game	470	if (cede_count >= 500)
552	* or editor will not be able to do anything with it either.
553	*/
554	if (op->arch == NULL)
555	{	471	{
556	LOG (llevDebug, "Discarding object without arch: %s\n", op->name ? (const char *) op->name : "(null)");	472	cede_count = 0;
557	continue;	473	coroapi::cede ();
558	}	474	}
		475	#endif
559		476
560		477	int unique = 0;
561	switch (i)	478	for (object *op = spaces [i].bot; op; op = op->above)
562	{	479	{
563	case LL_NORMAL:	480	// count per-object, but cede only when modification-safe
564	/* if we are loading an overlay, put the floors on the bottom */	481	cede_count++;
565	if ((QUERY_FLAG (op, FLAG_IS_FLOOR) || QUERY_FLAG (op, FLAG_OVERLAY_FLOOR)) && mapflags & MAP_OVERLAY)	482
566	insert_ob_in_map (op, m, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ABOVE_FLOOR_ONLY | INS_MAP_LOAD);	483	if (op->flag [FLAG_UNIQUE] && op->flag [FLAG_IS_FLOOR])
		484	unique = 1;
		485
		486	if (!op->can_map_save ())
		487	continue;
		488
		489	if (unique || op->flag [FLAG_UNIQUE])
567	else	490	{
568	insert_ob_in_map (op, m, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ON_TOP | INS_MAP_LOAD);	491	if (flags & IO_UNIQUES)
569		492	op->write (f);
570	if (op->inv)	493	}
571	sum_weight (op);	494	else if (flags & IO_OBJECTS)
572		495	op->write (f);
573	prev = op, last_more = op;
574	break;
575
576	case LL_MORE:
577	insert_ob_in_map (op, m, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ABOVE_FLOOR_ONLY);
578	op->head = prev, last_more->more = op, last_more = op;
579	break;
580	}	496	}
581
582	if (mapflags & MAP_STYLE)
583	remove_from_active_list (op);
584
585	op = get_object ();
586	op->map = m;
587	}
588
589	for (i = 0; i < m->width; i++)
590	{	497	}
591	for (j = 0; j < m->height; j++)
592	{
593	unique = 0;
594	/* check for unique items, or unique squares */
595	for (otmp = get_map_ob (m, i, j); otmp; otmp = otmp->above)
596	{
597	if (QUERY_FLAG (otmp, FLAG_UNIQUE) || QUERY_FLAG (otmp, FLAG_OBJ_SAVE_ON_OVL))
598	unique = 1;
599	if (!(mapflags & (MAP_OVERLAY | MAP_PLAYER_UNIQUE) || unique))
600	SET_FLAG (otmp, FLAG_OBJ_ORIGINAL);
601	}
602	}
603	}
604		498
605	free_object (op);	499	return true;
606	link_multipart_objects (m);
607	}	500	}
608		501
609	/* This saves all the objects on the map in a non destructive fashion.	502	bool
610	* Modified by MSW 2001-07-01 to do in a single pass - reduces code,	503	maptile::_load_objects (const char *path, bool skip_header)
611	* and we only save the head of multi part objects - this is needed
612	* in order to do map tiling properly.
613	*/
614	void
615	save_objects (maptile *m, object_freezer & fp, object_freezer & fp2, int flag)
616	{	504	{
617	int i, j = 0, unique = 0;	505	object_thawer f (path);
618	object *op;
619		506
620	/* first pass - save one-part objects */	507	if (!f)
621	for (i = 0; i < MAP_WIDTH (m); i++)	508	return false;
622	for (j = 0; j < MAP_HEIGHT (m); j++)	509
		510	f.next ();
		511
		512	if (skip_header)
		513	for (;;)
623	{	514	{
624	unique = 0;	515	keyword kw = f.kw;
625	for (op = get_map_ob (m, i, j); op; op = op->above)	516	f.skip ();
626	{	517	if (kw == KW_end)
627	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))	518	break;
628	unique = 1;	519	}
629		520
630	if (op->type == PLAYER)	521	return _load_objects (f);
631	{	522	}
632	LOG (llevDebug, "Player on map that is being saved\n");
633	continue;
634	}
635		523
636	if (op->head || op->owner)	524	bool
637	continue;	525	maptile::_save_objects (const char *path, int flags)
		526	{
		527	object_freezer freezer;
638		528
639	if (unique || QUERY_FLAG (op, FLAG_UNIQUE))	529	if (!_save_objects (freezer, flags))
640	save_object (fp2, op, 3);	530	return false;
641	else if (flag == 0 || (flag == 2 && (!QUERY_FLAG (op, FLAG_OBJ_ORIGINAL) && !QUERY_FLAG (op, FLAG_UNPAID))))
642	save_object (fp, op, 3);
643		531
644	} /* for this space */	532	return freezer.save (path);
645	} /* for this j */
646	}	533	}
647		534
648	maptile::maptile ()	535	maptile::maptile ()
649	{	536	{
650	in_memory = MAP_SWAPPED;	537	in_memory = MAP_SWAPPED;
		538
651	/* The maps used to pick up default x and y values from the	539	/* The maps used to pick up default x and y values from the
652	* map archetype. Mimic that behaviour.	540	* map archetype. Mimic that behaviour.
653	*/	541	*/
654	MAP_WIDTH (this) = 16;	542	width = 16;
655	MAP_HEIGHT (this) = 16;	543	height = 16;
656	MAP_RESET_TIMEOUT (this) = 0;	544	timeout = 300;
657	MAP_TIMEOUT (this) = 300;	545	max_nrof = 1000; // 1000 items of anything
658	MAP_ENTER_X (this) = 0;	546	max_volume = 2000000; // 2m³
659	MAP_ENTER_Y (this) = 0;
660	/*set part to -1 indicating conversion to weather map not yet done */
661	MAP_WORLDPARTX (this) = -1;
662	MAP_WORLDPARTY (this) = -1;
663	}	547	}
664		548
665	/*	549	maptile::maptile (int w, int h)
666	* Allocates, initialises, and returns a pointer to a maptile.
667	* Modified to no longer take a path option which was not being
668	* used anyways. MSW 2001-07-01
669	*/
670	maptile *
671	get_linked_map (void)
672	{	550	{
673	maptile *mp, *map = new maptile;	551	in_memory = MAP_SWAPPED;
674		552
675	for (mp = first_map; mp && mp->next; mp = mp->next);	553	width = w;
		554	height = h;
		555	reset_timeout = 0;
		556	timeout = 300;
		557	enter_x = 0;
		558	enter_y = 0;
676		559
677	if (mp == NULL)	560	alloc ();
678	first_map = map;
679	else
680	mp->next = map;
681
682	return map;
683	}	561	}
684		562
685	/*	563	/*
686	* Allocates the arrays contained in a maptile.	564	* Allocates the arrays contained in a maptile.
687	* This basically allocates the dynamic array of spaces for the	565	* This basically allocates the dynamic array of spaces for the
688	* map.	566	* map.
689	*/	567	*/
690	void	568	void
691	maptile::allocate ()	569	maptile::alloc ()
692	{	570	{
693	in_memory = MAP_IN_MEMORY;
694
695	/* Log this condition and free the storage. We could I suppose
696	* realloc, but if the caller is presuming the data will be intact,
697	* that is their poor assumption.
698	*/
699	if (spaces)	571	if (spaces)
700	{
701	LOG (llevError, "allocate_map called with already allocated map (%s)\n", path);
702	free (spaces);
703	}
704
705	spaces = (MapSpace *)
706	calloc (1, width * height * sizeof (MapSpace));
707
708	if (!spaces)
709	fatal (OUT_OF_MEMORY);
710	}
711
712	/* Create and returns a map of the specific size. Used
713	* in random map code and the editor.
714	*/
715	maptile *
716	get_empty_map (int sizex, int sizey)
717	{
718	maptile *m = get_linked_map ();
719
720	m->width = sizex;
721	m->height = sizey;
722	m->in_memory = MAP_SWAPPED;
723	m->allocate ();
724
725	return m;	572	return;
		573
		574	spaces = salloc0<mapspace> (size ());
726	}	575	}
727		576
728	/* Takes a string from a map definition and outputs a pointer to the array of shopitems	577	/* Takes a string from a map definition and outputs a pointer to the array of shopitems
729	* corresponding to that string. Memory is allocated for this, it must be freed	578	* corresponding to that string. Memory is allocated for this, it must be freed
730	* at a later date.	579	* at a later date.
731	* Called by parse_map_headers below.	580	* Called by parse_map_headers below.
732	*/	581	*/
733
734	static shopitems *	582	static shopitems *
735	parse_shop_string (const char *input_string)	583	parse_shop_string (const char *input_string)
736	{	584	{
737	char *shop_string, *p, *q, *next_semicolon, *next_colon;	585	char *shop_string, *p, *q, *next_semicolon, *next_colon;
738	shopitems *items = NULL;	586	shopitems *items = NULL;
739	int i = 0, number_of_entries = 0;	587	int i = 0, number_of_entries = 0;
740	const typedata *current_type;	588	const typedata *current_type;
741		589
742	shop_string = strdup_local (input_string);	590	shop_string = strdup (input_string);
743	p = shop_string;	591	p = shop_string;
744	/* first we'll count the entries, we'll need that for allocating the array shortly */	592	/* first we'll count the entries, we'll need that for allocating the array shortly */
745	while (p)	593	while (p)
746	{	594	{
747	p = strchr (p, ';');	595	p = strchr (p, ';');
748	number_of_entries++;	596	number_of_entries++;
749	if (p)	597	if (p)
750	p++;	598	p++;
751	}	599	}
		600
752	p = shop_string;	601	p = shop_string;
753	strip_endline (p);	602	strip_endline (p);
754	items = new shopitems[number_of_entries + 1];	603	items = new shopitems[number_of_entries + 1];
755	for (i = 0; i < number_of_entries; i++)	604	for (i = 0; i < number_of_entries; i++)
756	{	605	{
757	if (!p)	606	if (!p)
758	{	607	{
759	LOG (llevError, "parse_shop_string: I seem to have run out of string, that shouldn't happen.\n");	608	LOG (llevError, "parse_shop_string: I seem to have run out of string, that shouldn't happen.\n");
760	break;	609	break;
761	}	610	}
		611
762	next_semicolon = strchr (p, ';');	612	next_semicolon = strchr (p, ';');
763	next_colon = strchr (p, ':');	613	next_colon = strchr (p, ':');
764	/* if there is a stregth specified, figure out what it is, we'll need it soon. */	614	/* if there is a stregth specified, figure out what it is, we'll need it soon. */
765	if (next_colon && (!next_semicolon || next_colon < next_semicolon))	615	if (next_colon && (!next_semicolon || next_colon < next_semicolon))
766	items[i].strength = atoi (strchr (p, ':') + 1);	616	items[i].strength = atoi (strchr (p, ':') + 1);
…		…
793	* the next entry while we're at it, better print a warning	643	* the next entry while we're at it, better print a warning
794	*/	644	*/
795	LOG (llevError, "invalid type %s defined in shopitems in string %s\n", p, input_string);	645	LOG (llevError, "invalid type %s defined in shopitems in string %s\n", p, input_string);
796	}	646	}
797	}	647	}
		648
798	items[i].index = number_of_entries;	649	items[i].index = number_of_entries;
799	if (next_semicolon)	650	if (next_semicolon)
800	p = ++next_semicolon;	651	p = ++next_semicolon;
801	else	652	else
802	p = NULL;	653	p = NULL;
803	}	654	}
		655
804	free (shop_string);	656	free (shop_string);
805	return items;	657	return items;
806	}	658	}
807		659
808	/* opposite of parse string, this puts the string that was originally fed in to	660	/* opposite of parse string, this puts the string that was originally fed in to
…		…
817	for (i = 0; i < m->shopitems[0].index; i++)	669	for (i = 0; i < m->shopitems[0].index; i++)
818	{	670	{
819	if (m->shopitems[i].typenum)	671	if (m->shopitems[i].typenum)
820	{	672	{
821	if (m->shopitems[i].strength)	673	if (m->shopitems[i].strength)
822	{
823	sprintf (tmp, "%s:%d;", m->shopitems[i].name, m->shopitems[i].strength);	674	sprintf (tmp, "%s:%d;", m->shopitems[i].name, m->shopitems[i].strength);
824	}
825	else	675	else
826	sprintf (tmp, "%s;", m->shopitems[i].name);	676	sprintf (tmp, "%s;", m->shopitems[i].name);
827	}	677	}
828	else	678	else
829	{	679	{
830	if (m->shopitems[i].strength)	680	if (m->shopitems[i].strength)
831	{
832	sprintf (tmp, "*:%d;", m->shopitems[i].strength);	681	sprintf (tmp, "*:%d;", m->shopitems[i].strength);
833	}
834	else	682	else
835	sprintf (tmp, "*");	683	sprintf (tmp, "*");
836	}	684	}
		685
837	strcat (output_string, tmp);	686	strcat (output_string, tmp);
838	}	687	}
839	}	688	}
840		689
841	/* This loads the header information of the map. The header	690	/* This loads the header information of the map. The header
…		…
846	* put all the stuff in the map object so that names actually make	695	* put all the stuff in the map object so that names actually make
847	* sense.	696	* sense.
848	* This could be done in lex (like the object loader), but I think	697	* This could be done in lex (like the object loader), but I think
849	* currently, there are few enough fields this is not a big deal.	698	* currently, there are few enough fields this is not a big deal.
850	* MSW 2001-07-01	699	* MSW 2001-07-01
851	* return 0 on success, 1 on failure.
852	*/	700	*/
853		701	bool
854	static int	702	maptile::_load_header (object_thawer &thawer)
855	load_map_header (object_thawer & fp, maptile *m)
856	{	703	{
857	char buf[HUGE_BUF], msgbuf[HUGE_BUF], maplorebuf[HUGE_BUF], *key = NULL, *value, *end;	704	for (;;)
858	int msgpos = 0;
859	int maplorepos = 0;
860
861	while (fgets (buf, HUGE_BUF - 1, fp) != NULL)
862	{	705	{
863	buf[HUGE_BUF - 1] = 0;	706	keyword kw = thawer.get_kv ();
864	key = buf;	707
865	while (isspace (*key))	708	switch (kw)
866	key++;
867	if (*key == 0)
868	continue; /* empty line */
869	value = strchr (key, ' ');
870	if (!value)
871	{	709	{
872	end = strchr (key, '\n');	710	case KW_msg:
873	if (end != NULL)	711	thawer.get_ml (KW_endmsg, msg);
874	{	712	break;
875	*end = 0;	713
		714	case KW_lore: // CF+ extension
		715	thawer.get_ml (KW_endlore, maplore);
876	}	716	break;
		717
		718	case KW_maplore:
		719	thawer.get_ml (KW_endmaplore, maplore);
		720	break;
		721
		722	case KW_arch:
		723	if (strcmp (thawer.get_str (), "map"))
		724	LOG (llevError, "%s: loading map and got a non 'arch map' line (arch %s), skipping.\n", &path, thawer.get_str ());
		725	break;
		726
		727	case KW_oid:
		728	thawer.get (this, thawer.get_sint32 ());
		729	break;
		730
		731	case KW_file_format_version: break; // nop
		732
		733	case KW_name: thawer.get (name); break;
		734	case KW_attach: thawer.get (attach); break;
		735	case KW_reset_time: thawer.get (reset_time); break;
		736	case KW_shopgreed: thawer.get (shopgreed); break;
		737	case KW_shopmin: thawer.get (shopmin); break;
		738	case KW_shopmax: thawer.get (shopmax); break;
		739	case KW_shoprace: thawer.get (shoprace); break;
		740	case KW_outdoor: thawer.get (outdoor); break;
		741	case KW_temp: thawer.get (temp); break;
		742	case KW_pressure: thawer.get (pressure); break;
		743	case KW_humid: thawer.get (humid); break;
		744	case KW_windspeed: thawer.get (windspeed); break;
		745	case KW_winddir: thawer.get (winddir); break;
		746	case KW_sky: thawer.get (sky); break;
		747
		748	case KW_per_player: thawer.get (per_player); break;
		749	case KW_per_party: thawer.get (per_party); break;
		750
		751	case KW_region: default_region = region::find (thawer.get_str ()); break;
		752	case KW_shopitems: shopitems = parse_shop_string (thawer.get_str ()); break;
		753
		754	// old names new names
		755	case KW_hp: case KW_enter_x: thawer.get (enter_x); break;
		756	case KW_sp: case KW_enter_y: thawer.get (enter_y); break;
		757	case KW_x: case KW_width: thawer.get (width); break;
		758	case KW_y: case KW_height: thawer.get (height); break;
		759	case KW_weight: case KW_reset_timeout: thawer.get (reset_timeout); break;
		760	case KW_value: case KW_swap_time: thawer.get (timeout); break;
		761	case KW_level: case KW_difficulty: thawer.get (difficulty); difficulty = clamp (difficulty, 1, settings.max_level); break;
		762	case KW_invisible: case KW_darkness: thawer.get (darkness); break;
		763	case KW_stand_still: case KW_fixed_resettime: thawer.get (fixed_resettime); break;
		764
		765	case KW_tile_path_1: thawer.get (tile_path [0]); break;
		766	case KW_tile_path_2: thawer.get (tile_path [1]); break;
		767	case KW_tile_path_3: thawer.get (tile_path [2]); break;
		768	case KW_tile_path_4: thawer.get (tile_path [3]); break;
		769
		770	case KW_end:
		771	return true;
		772
		773	default:
		774	if (!thawer.parse_error ("map", 0))
		775	return false;
		776	break;
877	}	777	}
878	else
879	{
880	*value = 0;
881	value++;
882	end = strchr (value, '\n');
883	while (isspace (*value))
884	{
885	value++;
886	if (*value == '\0' || value == end)
887	{
888	/* Nothing but spaces. */
889	value = NULL;
890	break;
891	}
892	}
893	}
894
895	if (!end)
896	{
897	LOG (llevError, "Error loading map header - did not find a newline - perhaps file is truncated? Buf=%s\n", buf);
898	return 1;
899	}
900
901	/* key is the field name, value is what it should be set
902	* to. We've already done the work to null terminate key,
903	* and strip off any leading spaces for both of these.
904	* We have not touched the newline at the end of the line -
905	* these are needed for some values. the end pointer
906	* points to the first of the newlines.
907	* value could be NULL! It would be easy enough to just point
908	* this to "" to prevent cores, but that would let more errors slide
909	* through.
910	*
911	* First check for entries that do not use the value parameter, then
912	* validate that value is given and check for the remaining entries
913	* that use the parameter.
914	*/
915
916	if (!strcmp (key, "msg"))
917	{
918	while (fgets (buf, HUGE_BUF - 1, fp) != NULL)
919	{
920	if (!strcmp (buf, "endmsg\n"))
921	break;
922	else
923	{
924	/* slightly more efficient than strcat */
925	strcpy (msgbuf + msgpos, buf);
926	msgpos += strlen (buf);
927	}
928	}
929	/* There are lots of maps that have empty messages (eg, msg/endmsg
930	* with nothing between). There is no reason in those cases to
931	* keep the empty message. Also, msgbuf contains garbage data
932	* when msgpos is zero, so copying it results in crashes
933	*/
934	if (msgpos != 0)
935	m->msg = strdup_local (msgbuf);
936	}
937	else if (!strcmp (key, "maplore"))
938	{
939	while (fgets (buf, HUGE_BUF - 1, fp) != NULL)
940	{
941	if (!strcmp (buf, "endmaplore\n"))
942	break;
943	else
944	{
945	/* slightly more efficient than strcat */
946	strcpy (maplorebuf + maplorepos, buf);
947	maplorepos += strlen (buf);
948	}
949	}
950	if (maplorepos != 0)
951	m->maplore = strdup_local (maplorebuf);
952	}
953	else if (!strcmp (key, "end"))
954	{
955	break;
956	}
957	else if (value == NULL)
958	{
959	LOG (llevError, "Got '%s' line without parameter in map header\n", key);
960	}
961	else if (!strcmp (key, "arch"))
962	{
963	/* This is an oddity, but not something we care about much. */
964	if (strcmp (value, "map\n"))
965	LOG (llevError, "loading map and got a non 'arch map' line(%s %s)?\n", key, value);
966	}
967	else if (!strcmp (key, "name"))
968	{
969	*end = 0;
970	m->name = strdup_local (value);
971	}
972	/* first strcmp value on these are old names supported
973	* for compatibility reasons. The new values (second) are
974	* what really should be used.
975	*/
976	else if (!strcmp (key, "oid"))
977	{
978	fp.get (m, atoi (value));
979	}
980	else if (!strcmp (key, "attach"))
981	{
982	m->attach = value;
983	}
984	else if (!strcmp (key, "hp") || !strcmp (key, "enter_x"))
985	{
986	m->enter_x = atoi (value);
987	}
988	else if (!strcmp (key, "sp") || !strcmp (key, "enter_y"))
989	{
990	m->enter_y = atoi (value);
991	}
992	else if (!strcmp (key, "x") || !strcmp (key, "width"))
993	{
994	m->width = atoi (value);
995	}
996	else if (!strcmp (key, "y") || !strcmp (key, "height"))
997	{
998	m->height = atoi (value);
999	}
1000	else if (!strcmp (key, "weight") || !strcmp (key, "reset_timeout"))
1001	{
1002	m->reset_timeout = atoi (value);
1003	}
1004	else if (!strcmp (key, "value") || !strcmp (key, "swap_time"))
1005	{
1006	m->timeout = atoi (value);
1007	}
1008	else if (!strcmp (key, "level") || !strcmp (key, "difficulty"))
1009	{
1010	m->difficulty = atoi (value);
1011	}
1012	else if (!strcmp (key, "invisible") || !strcmp (key, "darkness"))
1013	{
1014	m->darkness = atoi (value);
1015	}
1016	else if (!strcmp (key, "stand_still") || !strcmp (key, "fixed_resettime"))
1017	{
1018	m->fixed_resettime = atoi (value);
1019	}
1020	else if (!strcmp (key, "unique"))
1021	{
1022	m->unique = atoi (value);
1023	}
1024	else if (!strcmp (key, "template"))
1025	{
1026	m->templatemap = atoi (value);
1027	}
1028	else if (!strcmp (key, "region"))
1029	{
1030	m->region = get_region_by_name (value);
1031	}
1032	else if (!strcmp (key, "shopitems"))
1033	{
1034	*end = 0;
1035	m->shopitems = parse_shop_string (value);
1036	}
1037	else if (!strcmp (key, "shopgreed"))
1038	{
1039	m->shopgreed = atof (value);
1040	}
1041	else if (!strcmp (key, "shopmin"))
1042	{
1043	m->shopmin = atol (value);
1044	}
1045	else if (!strcmp (key, "shopmax"))
1046	{
1047	m->shopmax = atol (value);
1048	}
1049	else if (!strcmp (key, "shoprace"))
1050	{
1051	*end = 0;
1052	m->shoprace = strdup_local (value);
1053	}
1054	else if (!strcmp (key, "outdoor"))
1055	{
1056	m->outdoor = atoi (value);
1057	}
1058	else if (!strcmp (key, "temp"))
1059	{
1060	m->temp = atoi (value);
1061	}
1062	else if (!strcmp (key, "pressure"))
1063	{
1064	m->pressure = atoi (value);
1065	}
1066	else if (!strcmp (key, "humid"))
1067	{
1068	m->humid = atoi (value);
1069	}
1070	else if (!strcmp (key, "windspeed"))
1071	{
1072	m->windspeed = atoi (value);
1073	}
1074	else if (!strcmp (key, "winddir"))
1075	{
1076	m->winddir = atoi (value);
1077	}
1078	else if (!strcmp (key, "sky"))
1079	{
1080	m->sky = atoi (value);
1081	}
1082	else if (!strcmp (key, "nosmooth"))
1083	{
1084	m->nosmooth = atoi (value);
1085	}
1086	else if (!strncmp (key, "tile_path_", 10))
1087	{
1088	int tile = atoi (key + 10);
1089
1090	if (tile < 1 || tile > 4)
1091	{
1092	LOG (llevError, "load_map_header: tile location %d out of bounds (%s)\n", tile, m->path);
1093	}
1094	else
1095	{
1096	char *path;
1097
1098	*end = 0;
1099
1100	if (m->tile_path[tile - 1])
1101	{
1102	LOG (llevError, "load_map_header: tile location %d duplicated (%s)\n", tile, m->path);
1103	free (m->tile_path[tile - 1]);
1104	m->tile_path[tile - 1] = NULL;
1105	}
1106
1107	if (check_path (value, 1) != -1)
1108	{
1109	/* The unadorned path works. */
1110	path = value;
1111	}
1112	else
1113	{
1114	/* Try again; it could be a relative exit. */
1115
1116	path = path_combine_and_normalize (m->path, value);
1117
1118	if (check_path (path, 1) == -1)
1119	{
1120	LOG (llevError, "get_map_header: Bad tile path %s %s\n", m->path, value);
1121	path = NULL;
1122	}
1123	}
1124
1125	if (editor)
1126	{
1127	/* Use the value as in the file. */
1128	m->tile_path[tile - 1] = strdup_local (value);
1129	}
1130	else if (path != NULL)
1131	{
1132	/* Use the normalized value. */
1133	m->tile_path[tile - 1] = strdup_local (path);
1134	}
1135	} /* end if tile direction (in)valid */
1136	}
1137	else
1138	{
1139	LOG (llevError, "Got unknown value in map header: %s %s\n", key, value);
1140	}
1141	}
1142	if (!key || strcmp (key, "end"))
1143	{	778	}
1144	LOG (llevError, "Got premature eof on map header!\n");
1145	return 1;
1146	}
1147	return 0;
1148	}
1149		779
1150	/*	780	abort ();
1151	* Opens the file "filename" and reads information about the map	781	}
1152	* from the given file, and stores it in a newly allocated
1153	* maptile. A pointer to this structure is returned, or NULL on failure.
1154	* flags correspond to those in map.h. Main ones used are
1155	* MAP_PLAYER_UNIQUE, in which case we don't do any name changes, and
1156	* MAP_BLOCK, in which case we block on this load. This happens in all
1157	* cases, no matter if this flag is set or not.
1158	* MAP_STYLE: style map - don't add active objects, don't add to server
1159	* managed map list.
1160	*/
1161		782
1162	maptile *	783	bool
1163	load_original_map (const char *filename, int flags)	784	maptile::_load_header (const char *path)
1164	{	785	{
1165	maptile *m;
1166	char pathname[MAX_BUF];
1167
1168	if (flags & MAP_PLAYER_UNIQUE)
1169	strcpy (pathname, filename);
1170	else if (flags & MAP_OVERLAY)
1171	strcpy (pathname, create_overlay_pathname (filename));
1172	else
1173	strcpy (pathname, create_pathname (filename));
1174
1175	LOG (llevDebug, "load_original_map(%x): %s (%s)\n", flags, filename, pathname);
1176
1177	object_thawer thawer (pathname);	786	object_thawer thawer (path);
1178		787
1179	if (!thawer)	788	if (!thawer)
1180	return 0;	789	return false;
1181		790
1182	m = get_linked_map ();	791	return _load_header (thawer);
1183
1184	strcpy (m->path, filename);
1185	if (load_map_header (thawer, m))
1186	{
1187	LOG (llevError, "Error loading map header for %s, flags=%d\n", filename, flags);
1188	delete_map (m);
1189	return NULL;
1190	}
1191
1192	m->allocate ();
1193
1194	m->in_memory = MAP_LOADING;
1195	load_objects (m, thawer, flags & (MAP_BLOCK | MAP_STYLE));
1196
1197	m->in_memory = MAP_IN_MEMORY;
1198	if (!MAP_DIFFICULTY (m))
1199	MAP_DIFFICULTY (m) = calculate_difficulty (m);
1200	set_map_reset_time (m);
1201	m->instantiate ();
1202	return (m);
1203	}
1204
1205	/*
1206	* Loads a map, which has been loaded earlier, from file.
1207	* Return the map object we load into (this can change from the passed
1208	* option if we can't find the original map)
1209	*/
1210
1211	static maptile *
1212	load_temporary_map (maptile *m)
1213	{
1214	char buf[MAX_BUF];
1215
1216	if (!m->tmpname)
1217	{
1218	LOG (llevError, "No temporary filename for map %s\n", m->path);
1219	strcpy (buf, m->path);
1220	delete_map (m);
1221	m = load_original_map (buf, 0);
1222	if (m == NULL)
1223	return NULL;
1224	fix_auto_apply (m); /* Chests which open as default */
1225	return m;
1226	}
1227
1228	object_thawer thawer (m->tmpname);
1229
1230	if (!thawer)
1231	{
1232	strcpy (buf, m->path);
1233	delete_map (m);
1234	m = load_original_map (buf, 0);
1235	if (!m)
1236	return NULL;
1237	fix_auto_apply (m); /* Chests which open as default */
1238	return m;
1239	}
1240
1241	if (load_map_header (thawer, m))
1242	{
1243	LOG (llevError, "Error loading map header for %s (%s)\n", m->path, m->tmpname);
1244	delete_map (m);
1245	m = load_original_map (m->path, 0);
1246	return NULL;
1247	}
1248
1249	m->allocate ();
1250
1251	m->in_memory = MAP_LOADING;
1252	load_objects (m, thawer, 0);
1253
1254	m->in_memory = MAP_IN_MEMORY;
1255	INVOKE_MAP (SWAPIN, m);
1256	return m;
1257	}
1258
1259	/*
1260	* Loads a map, which has been loaded earlier, from file.
1261	* Return the map object we load into (this can change from the passed
1262	* option if we can't find the original map)
1263	*/
1264
1265	maptile *
1266	load_overlay_map (const char *filename, maptile *m)
1267	{
1268	char pathname[MAX_BUF];
1269
1270	strcpy (pathname, create_overlay_pathname (filename));
1271
1272	object_thawer thawer (pathname);
1273
1274	if (!thawer)
1275	return m;
1276
1277	if (load_map_header (thawer, m))
1278	{
1279	LOG (llevError, "Error loading map header for overlay %s (%s)\n", m->path, pathname);
1280	delete_map (m);
1281	m = load_original_map (m->path, 0);
1282	return NULL;
1283	}
1284	/*m->allocate ();*/
1285
1286	m->in_memory = MAP_LOADING;
1287	load_objects (m, thawer, MAP_OVERLAY);
1288
1289	m->in_memory = MAP_IN_MEMORY;
1290	return m;
1291	}	792	}
1292		793
1293	/******************************************************************************	794	/******************************************************************************
1294	* This is the start of unique map handling code	795	* This is the start of unique map handling code
1295	*****************************************************************************/	796	*****************************************************************************/
1296		797
1297	/* This goes through map 'm' and removed any unique items on the map. */	798	/* This goes through the maptile and removed any unique items on the map. */
1298	static void	799	void
1299	delete_unique_items (maptile *m)	800	maptile::clear_unique_items ()
1300	{	801	{
1301	int i, j, unique;	802	for (int i = 0; i < size (); ++i)
1302	object *op, *next;	803	{
		804	int unique = 0;
		805	for (object *op = spaces [i].bot; op; )
		806	{
		807	object *above = op->above;
1303		808
1304	for (i = 0; i < MAP_WIDTH (m); i++)	809	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))
1305	for (j = 0; j < MAP_HEIGHT (m); j++)	810	unique = 1;
		811
		812	if (op->head == NULL && (QUERY_FLAG (op, FLAG_UNIQUE) || unique))
		813	{
		814	op->destroy_inv (false);
		815	op->destroy ();
		816	}
		817
		818	op = above;
		819	}
		820	}
		821	}
		822
		823	bool
		824	maptile::_save_header (object_freezer &freezer)
		825	{
		826	#define MAP_OUT(k) freezer.put (KW_ ## k, k)
		827	#define MAP_OUT2(k,v) freezer.put (KW_ ## k, v)
		828
		829	MAP_OUT2 (arch, "map");
		830
		831	if (name) MAP_OUT (name);
		832	MAP_OUT (swap_time);
		833	MAP_OUT (reset_time);
		834	MAP_OUT (reset_timeout);
		835	MAP_OUT (fixed_resettime);
		836	MAP_OUT (difficulty);
		837
		838	if (default_region) MAP_OUT2 (region, default_region->name);
		839
		840	if (shopitems)
		841	{
		842	char shop[MAX_BUF];
		843	print_shop_string (this, shop);
		844	MAP_OUT2 (shopitems, shop);
		845	}
		846
		847	MAP_OUT (shopgreed);
		848	MAP_OUT (shopmin);
		849	MAP_OUT (shopmax);
		850	if (shoprace) MAP_OUT (shoprace);
		851	MAP_OUT (darkness);
		852	MAP_OUT (width);
		853	MAP_OUT (height);
		854	MAP_OUT (enter_x);
		855	MAP_OUT (enter_y);
		856
		857	if (msg) freezer.put (KW_msg , KW_endmsg , msg);
		858	if (maplore) freezer.put (KW_maplore, KW_endmaplore, maplore);
		859
		860	MAP_OUT (outdoor);
		861	MAP_OUT (temp);
		862	MAP_OUT (pressure);
		863	MAP_OUT (humid);
		864	MAP_OUT (windspeed);
		865	MAP_OUT (winddir);
		866	MAP_OUT (sky);
		867
		868	MAP_OUT (per_player);
		869	MAP_OUT (per_party);
		870
		871	if (tile_path [0]) MAP_OUT2 (tile_path_1, tile_path [0]);
		872	if (tile_path [1]) MAP_OUT2 (tile_path_2, tile_path [1]);
		873	if (tile_path [2]) MAP_OUT2 (tile_path_3, tile_path [2]);
		874	if (tile_path [3]) MAP_OUT2 (tile_path_4, tile_path [3]);
		875
		876	freezer.put (this);
		877	freezer.put (KW_end);
		878
		879	return true;
		880	}
		881
		882	bool
		883	maptile::_save_header (const char *path)
		884	{
		885	object_freezer freezer;
		886
		887	if (!_save_header (freezer))
		888	return false;
		889
		890	return freezer.save (path);
		891	}
		892
		893	/*
		894	* Remove and free all objects in the given map.
		895	*/
		896	void
		897	maptile::clear ()
		898	{
		899	sfree (regions, size ()), regions = 0;
		900	free (regionmap), regionmap = 0;
		901
		902	if (spaces)
		903	{
		904	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		905	while (object *op = ms->bot)
		906	{
		907	if (op->head)
		908	op = op->head;
		909
		910	op->destroy_inv (false);
		911	op->destroy ();
		912	}
		913
		914	sfree (spaces, size ()), spaces = 0;
		915	}
		916
		917	if (buttons)
		918	free_objectlinkpt (buttons), buttons = 0;
		919	}
		920
		921	void
		922	maptile::clear_header ()
		923	{
		924	name = 0;
		925	msg = 0;
		926	maplore = 0;
		927	shoprace = 0;
		928	delete [] shopitems, shopitems = 0;
		929
		930	for (int i = 0; i < 4; i++)
		931	tile_path [i] = 0;
		932	}
		933
		934	maptile::~maptile ()
		935	{
		936	assert (destroyed ());
		937	}
		938
		939	void
		940	maptile::clear_links_to (maptile *m)
		941	{
		942	/* We need to look through all the maps and see if any maps
		943	* are pointing at this one for tiling information. Since
		944	* tiling can be asymetric, we just can not look to see which
		945	* maps this map tiles with and clears those.
		946	*/
		947	for (int i = 0; i < 4; i++)
		948	if (tile_map[i] == m)
		949	tile_map[i] = 0;
		950	}
		951
		952	void
		953	maptile::do_destroy ()
		954	{
		955	attachable::do_destroy ();
		956
		957	clear ();
		958	}
		959
		960	/*
		961	* Updates every button on the map (by calling update_button() for them).
		962	*/
		963	void
		964	maptile::update_buttons ()
		965	{
		966	for (oblinkpt *obp = buttons; obp; obp = obp->next)
		967	for (objectlink *ol = obp->link; ol; ol = ol->next)
1306	{	968	{
1307	unique = 0;	969	if (!ol->ob)
1308	for (op = get_map_ob (m, i, j); op; op = next)
1309	{	970	{
1310	next = op->above;	971	LOG (llevError, "Internal error in update_button (%s (%dx%d), connected %ld).\n",
1311	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))	972	ol->ob ? (const char *) ol->ob->name : "null", ol->ob ? ol->ob->x : -1, ol->ob ? ol->ob->y : -1, obp->value);
1312	unique = 1;	973	continue;
1313	if (op->head == NULL && (QUERY_FLAG (op, FLAG_UNIQUE) || unique))
1314	{
1315	clean_object (op);
1316	if (QUERY_FLAG (op, FLAG_IS_LINKED))
1317	remove_button_link (op);
1318	remove_ob (op);
1319	free_object (op);
1320	}	974	}
		975
		976	if (ol->ob->type == BUTTON || ol->ob->type == PEDESTAL)
		977	{
		978	update_button (ol->ob);
		979	break;
1321	}	980	}
1322	}	981	}
1323	}	982	}
1324
1325
1326	/*
1327	* Loads unique objects from file(s) into the map which is in memory
1328	* m is the map to load unique items into.
1329	*/
1330	static void
1331	load_unique_objects (maptile *m)
1332	{
1333	int count;
1334	char firstname[MAX_BUF];
1335
1336	for (count = 0; count < 10; count++)
1337	{
1338	sprintf (firstname, "%s.v%02d", create_items_path (m->path), count);
1339	if (!access (firstname, R_OK))
1340	break;
1341	}
1342	/* If we get here, we did not find any map */
1343	if (count == 10)
1344	return;
1345
1346	object_thawer thawer (firstname);
1347
1348	if (!thawer)
1349	return;
1350
1351	m->in_memory = MAP_LOADING;
1352	if (m->tmpname == NULL) /* if we have loaded unique items from */
1353	delete_unique_items (m); /* original map before, don't duplicate them */
1354	load_objects (m, thawer, 0);
1355
1356	m->in_memory = MAP_IN_MEMORY;
1357	}
1358
1359
1360	/*
1361	* Saves a map to file. If flag is set, it is saved into the same
1362	* file it was (originally) loaded from. Otherwise a temporary
1363	* filename will be genarated, and the file will be stored there.
1364	* The temporary filename will be stored in the maptileure.
1365	* If the map is unique, we also save to the filename in the map
1366	* (this should have been updated when first loaded)
1367	*/
1368
1369	int
1370	new_save_map (maptile *m, int flag)
1371	{
1372	char filename[MAX_BUF], buf[MAX_BUF], shop[MAX_BUF];
1373	int i;
1374
1375	if (flag && !*m->path)
1376	{
1377	LOG (llevError, "Tried to save map without path.\n");
1378	return -1;
1379	}
1380
1381	if (flag || (m->unique) || (m->templatemap))
1382	{
1383	if (!m->unique && !m->templatemap)
1384	{ /* flag is set */
1385	if (flag == 2)
1386	strcpy (filename, create_overlay_pathname (m->path));
1387	else
1388	strcpy (filename, create_pathname (m->path));
1389	}
1390	else
1391	strcpy (filename, m->path);
1392
1393	make_path_to_file (filename);
1394	}
1395	else
1396	{
1397	if (!m->tmpname)
1398	m->tmpname = tempnam_local (settings.tmpdir, NULL);
1399
1400	strcpy (filename, m->tmpname);
1401	}
1402
1403	LOG (llevDebug, "Saving map %s to %s\n", m->path, filename);
1404	m->in_memory = MAP_SAVING;
1405
1406	object_freezer freezer;
1407
1408	/* legacy */
1409	fprintf (freezer, "arch map\n");
1410	if (m->name)
1411	fprintf (freezer, "name %s\n", m->name);
1412	if (!flag)
1413	fprintf (freezer, "swap_time %d\n", m->swap_time);
1414	if (m->reset_timeout)
1415	fprintf (freezer, "reset_timeout %d\n", m->reset_timeout);
1416	if (m->fixed_resettime)
1417	fprintf (freezer, "fixed_resettime %d\n", m->fixed_resettime);
1418	/* we unfortunately have no idea if this is a value the creator set
1419	* or a difficulty value we generated when the map was first loaded
1420	*/
1421	if (m->difficulty)
1422	fprintf (freezer, "difficulty %d\n", m->difficulty);
1423	if (m->region)
1424	fprintf (freezer, "region %s\n", m->region->name);
1425	if (m->shopitems)
1426	{
1427	print_shop_string (m, shop);
1428	fprintf (freezer, "shopitems %s\n", shop);
1429	}
1430	if (m->shopgreed)
1431	fprintf (freezer, "shopgreed %f\n", m->shopgreed);
1432	#ifndef WIN32
1433	if (m->shopmin)
1434	fprintf (freezer, "shopmin %llu\n", m->shopmin);
1435	if (m->shopmax)
1436	fprintf (freezer, "shopmax %llu\n", m->shopmax);
1437	#else
1438	if (m->shopmin)
1439	fprintf (freezer, "shopmin %I64u\n", m->shopmin);
1440	if (m->shopmax)
1441	fprintf (freezer, "shopmax %I64u\n", m->shopmax);
1442	#endif
1443	if (m->shoprace)
1444	fprintf (freezer, "shoprace %s\n", m->shoprace);
1445	if (m->darkness)
1446	fprintf (freezer, "darkness %d\n", m->darkness);
1447	if (m->width)
1448	fprintf (freezer, "width %d\n", m->width);
1449	if (m->height)
1450	fprintf (freezer, "height %d\n", m->height);
1451	if (m->enter_x)
1452	fprintf (freezer, "enter_x %d\n", m->enter_x);
1453	if (m->enter_y)
1454	fprintf (freezer, "enter_y %d\n", m->enter_y);
1455	if (m->msg)
1456	fprintf (freezer, "msg\n%sendmsg\n", m->msg);
1457	if (m->maplore)
1458	fprintf (freezer, "maplore\n%sendmaplore\n", m->maplore);
1459	if (m->unique)
1460	fprintf (freezer, "unique %d\n", m->unique);
1461	if (m->templatemap)
1462	fprintf (freezer, "template %d\n", m->templatemap);
1463	if (m->outdoor)
1464	fprintf (freezer, "outdoor %d\n", m->outdoor);
1465	if (m->temp)
1466	fprintf (freezer, "temp %d\n", m->temp);
1467	if (m->pressure)
1468	fprintf (freezer, "pressure %d\n", m->pressure);
1469	if (m->humid)
1470	fprintf (freezer, "humid %d\n", m->humid);
1471	if (m->windspeed)
1472	fprintf (freezer, "windspeed %d\n", m->windspeed);
1473	if (m->winddir)
1474	fprintf (freezer, "winddir %d\n", m->winddir);
1475	if (m->sky)
1476	fprintf (freezer, "sky %d\n", m->sky);
1477	if (m->nosmooth)
1478	fprintf (freezer, "nosmooth %d\n", m->nosmooth);
1479
1480	/* Save any tiling information, except on overlays */
1481	if (flag != 2)
1482	for (i = 0; i < 4; i++)
1483	if (m->tile_path[i])
1484	fprintf (freezer, "tile_path_%d %s\n", i + 1, m->tile_path[i]);
1485
1486	freezer.put (m);
1487	fprintf (freezer, "end\n");
1488
1489	/* In the game save unique items in the different file, but
1490	* in the editor save them to the normal map file.
1491	* If unique map, save files in the proper destination (set by
1492	* player)
1493	*/
1494	if ((flag == 0 || flag == 2) && !m->unique && !m->templatemap)
1495	{
1496	object_freezer unique;
1497
1498	if (flag == 2)
1499	save_objects (m, freezer, unique, 2);
1500	else
1501	save_objects (m, freezer, unique, 0);
1502
1503	sprintf (buf, "%s.v00", create_items_path (m->path));
1504
1505	unique.save (buf);
1506	}
1507	else
1508	{ /* save same file when not playing, like in editor */
1509	save_objects (m, freezer, freezer, 0);
1510	}
1511
1512	freezer.save (filename);
1513
1514	return 0;
1515	}
1516
1517
1518	/*
1519	* Remove and free all objects in the inventory of the given object.
1520	* object.c ?
1521	*/
1522
1523	void
1524	clean_object (object *op)
1525	{
1526	object *tmp, *next;
1527
1528	for (tmp = op->inv; tmp; tmp = next)
1529	{
1530	next = tmp->below;
1531	clean_object (tmp);
1532	if (QUERY_FLAG (tmp, FLAG_IS_LINKED))
1533	remove_button_link (tmp);
1534	remove_ob (tmp);
1535	free_object (tmp);
1536	}
1537	}
1538
1539	/*
1540	* Remove and free all objects in the given map.
1541	*/
1542
1543	void
1544	free_all_objects (maptile *m)
1545	{
1546	int i, j;
1547	object *op;
1548
1549	for (i = 0; i < MAP_WIDTH (m); i++)
1550	for (j = 0; j < MAP_HEIGHT (m); j++)
1551	{
1552	object *previous_obj = NULL;
1553
1554	while ((op = GET_MAP_OB (m, i, j)) != NULL)
1555	{
1556	if (op == previous_obj)
1557	{
1558	LOG (llevDebug, "free_all_objects: Link error, bailing out.\n");
1559	break;
1560	}
1561	previous_obj = op;
1562	if (op->head != NULL)
1563	op = op->head;
1564
1565	/* If the map isn't in memory, free_object will remove and
1566	* free objects in op's inventory. So let it do the job.
1567	*/
1568	if (m->in_memory == MAP_IN_MEMORY)
1569	clean_object (op);
1570	remove_ob (op);
1571	free_object (op);
1572	}
1573	}
1574	}
1575
1576	/*
1577	* Frees everything allocated by the given maptileure.
1578	* don't free tmpname - our caller is left to do that
1579	*/
1580
1581	void
1582	free_map (maptile *m, int flag)
1583	{
1584	int i;
1585
1586	if (!m->in_memory)
1587	{
1588	LOG (llevError, "Trying to free freed map.\n");
1589	return;
1590	}
1591	if (flag && m->spaces)
1592	free_all_objects (m);
1593	if (m->name)
1594	FREE_AND_CLEAR (m->name);
1595	if (m->spaces)
1596	FREE_AND_CLEAR (m->spaces);
1597	if (m->msg)
1598	FREE_AND_CLEAR (m->msg);
1599	if (m->maplore)
1600	FREE_AND_CLEAR (m->maplore);
1601	if (m->shopitems)
1602	delete[]m->shopitems;
1603	m->shopitems = 0;
1604	if (m->shoprace)
1605	FREE_AND_CLEAR (m->shoprace);
1606	if (m->buttons)
1607	free_objectlinkpt (m->buttons);
1608	m->buttons = NULL;
1609	for (i = 0; i < 4; i++)
1610	{
1611	if (m->tile_path[i])
1612	FREE_AND_CLEAR (m->tile_path[i]);
1613	m->tile_map[i] = NULL;
1614	}
1615	m->in_memory = MAP_SWAPPED;
1616	}
1617
1618	/*
1619	* function: vanish maptile
1620	* m : pointer to maptile, if NULL no action
1621	* this deletes all the data on the map (freeing pointers)
1622	* and then removes this map from the global linked list of maps.
1623	*/
1624
1625	void
1626	delete_map (maptile *m)
1627	{
1628	maptile *tmp, *last;
1629	int i;
1630
1631	if (!m)
1632	return;
1633
1634	m->clear ();
1635
1636	if (m->in_memory == MAP_IN_MEMORY)
1637	{
1638	/* change to MAP_SAVING, even though we are not,
1639	* so that remove_ob doesn't do as much work.
1640	*/
1641	m->in_memory = MAP_SAVING;
1642	free_map (m, 1);
1643	}
1644	/* move this out of free_map, since tmpname can still be needed if
1645	* the map is swapped out.
1646	*/
1647	if (m->tmpname)
1648	{
1649	free (m->tmpname);
1650	m->tmpname = NULL;
1651	}
1652	last = NULL;
1653	/* We need to look through all the maps and see if any maps
1654	* are pointing at this one for tiling information. Since
1655	* tiling can be assymetric, we just can not look to see which
1656	* maps this map tiles with and clears those.
1657	*/
1658	for (tmp = first_map; tmp != NULL; tmp = tmp->next)
1659	{
1660	if (tmp->next == m)
1661	last = tmp;
1662
1663	/* This should hopefully get unrolled on a decent compiler */
1664	for (i = 0; i < 4; i++)
1665	if (tmp->tile_map[i] == m)
1666	tmp->tile_map[i] = NULL;
1667	}
1668
1669	/* If last is null, then this should be the first map in the list */
1670	if (!last)
1671	{
1672	if (m == first_map)
1673	first_map = m->next;
1674	else
1675	/* m->path is a static char, so should hopefully still have
1676	* some useful data in it.
1677	*/
1678	LOG (llevError, "delete_map: Unable to find map %s in list\n", m->path);
1679	}
1680	else
1681	last->next = m->next;
1682
1683	delete m;
1684	}
1685
1686
1687
1688	/*
1689	* Makes sure the given map is loaded and swapped in.
1690	* name is path name of the map.
1691	* flags meaning:
1692	* 0x1 (MAP_FLUSH): flush the map - always load from the map directory,
1693	* and don't do unique items or the like.
1694	* 0x2 (MAP_PLAYER_UNIQUE) - this is a unique map for each player.
1695	* dont do any more name translation on it.
1696	*
1697	* Returns a pointer to the given map.
1698	*/
1699
1700	maptile *
1701	ready_map_name (const char *name, int flags)
1702	{
1703	maptile *m;
1704
1705	if (!name)
1706	return (NULL);
1707
1708	/* Have we been at this level before? */
1709	m = has_been_loaded (name);
1710
1711	/* Map is good to go, so just return it */
1712	if (m && (m->in_memory == MAP_LOADING || m->in_memory == MAP_IN_MEMORY))
1713	{
1714	return m;
1715	}
1716
1717	/* unique maps always get loaded from their original location, and never
1718	* a temp location. Likewise, if map_flush is set, or we have never loaded
1719	* this map, load it now. I removed the reset checking from here -
1720	* it seems the probability of a player trying to enter a map that should
1721	* reset but hasn't yet is quite low, and removing that makes this function
1722	* a bit cleaner (and players probably shouldn't rely on exact timing for
1723	* resets in any case - if they really care, they should use the 'maps command.
1724	*/
1725	if ((flags & (MAP_FLUSH | MAP_PLAYER_UNIQUE)) || !m)
1726	{
1727
1728	/* first visit or time to reset */
1729	if (m)
1730	{
1731	clean_tmp_map (m); /* Doesn't make much difference */
1732	delete_map (m);
1733	}
1734
1735	/* create and load a map */
1736	if (flags & MAP_PLAYER_UNIQUE)
1737	LOG (llevDebug, "Trying to load map %s.\n", name);
1738	else
1739	LOG (llevDebug, "Trying to load map %s.\n", create_pathname (name));
1740
1741	//eval_pv ("$x = Event::time", 1);//D
1742	if (!(m = load_original_map (name, (flags & MAP_PLAYER_UNIQUE))))
1743	return (NULL);
1744	//eval_pv ("warn \"LOAD \", Event::time - $x", 1);//D
1745
1746	fix_auto_apply (m); /* Chests which open as default */
1747
1748	/* If a player unique map, no extra unique object file to load.
1749	* if from the editor, likewise.
1750	*/
1751	if (!(flags & (MAP_FLUSH | MAP_PLAYER_UNIQUE)))
1752	load_unique_objects (m);
1753
1754	if (!(flags & (MAP_FLUSH | MAP_PLAYER_UNIQUE | MAP_OVERLAY)))
1755	{
1756	m = load_overlay_map (name, m);
1757	if (m == NULL)
1758	return NULL;
1759	}
1760
1761	if (flags & MAP_PLAYER_UNIQUE)
1762	INVOKE_MAP (SWAPIN, m);
1763
1764	}
1765	else
1766	{
1767	/* If in this loop, we found a temporary map, so load it up. */
1768
1769	m = load_temporary_map (m);
1770	if (m == NULL)
1771	return NULL;
1772	load_unique_objects (m);
1773
1774	clean_tmp_map (m);
1775	m->in_memory = MAP_IN_MEMORY;
1776	/* tempnam() on sun systems (probably others) uses malloc
1777	* to allocated space for the string. Free it here.
1778	* In some cases, load_temporary_map above won't find the
1779	* temporary map, and so has reloaded a new map. If that
1780	* is the case, tmpname is now null
1781	*/
1782	if (m->tmpname)
1783	free (m->tmpname);
1784	m->tmpname = NULL;
1785	/* It's going to be saved anew anyway */
1786	}
1787
1788	/* Below here is stuff common to both first time loaded maps and
1789	* temp maps.
1790	*/
1791
1792	decay_objects (m); /* start the decay */
1793	/* In case other objects press some buttons down */
1794	update_buttons (m);
1795	if (m->outdoor)
1796	set_darkness_map (m);
1797	/* run the weather over this map */
1798	weather_effect (name);
1799	return m;
1800	}
1801
1802		983
1803	/*	984	/*
1804	* This routine is supposed to find out the difficulty of the map.	985	* This routine is supposed to find out the difficulty of the map.
1805	* difficulty does not have a lot to do with character level,	986	* difficulty does not have a lot to do with character level,
1806	* but does have a lot to do with treasure on the map.	987	* but does have a lot to do with treasure on the map.
…		…
1808	* Difficulty can now be set by the map creature. If the value stored	989	* Difficulty can now be set by the map creature. If the value stored
1809	* in the map is zero, then use this routine. Maps should really	990	* in the map is zero, then use this routine. Maps should really
1810	* have a difficulty set than using this function - human calculation	991	* have a difficulty set than using this function - human calculation
1811	* is much better than this functions guesswork.	992	* is much better than this functions guesswork.
1812	*/	993	*/
1813
1814	int	994	int
1815	calculate_difficulty (maptile *m)	995	maptile::estimate_difficulty () const
1816	{	996	{
1817	object *op;
1818	archetype *at;
1819	int x, y, i;
1820	long monster_cnt = 0;	997	long monster_cnt = 0;
1821	double avgexp = 0;	998	double avgexp = 0;
1822	sint64 total_exp = 0;	999	sint64 total_exp = 0;
1823		1000
1824	if (MAP_DIFFICULTY (m))	1001	for (mapspace *ms = spaces + size (); ms-- > spaces; )
1825	{	1002	for (object *op = ms->bot; op; op = op->above)
1826	LOG (llevDebug, "Using stored map difficulty: %d\n", MAP_DIFFICULTY (m));
1827	return MAP_DIFFICULTY (m);
1828	}
1829
1830	for (x = 0; x < MAP_WIDTH (m); x++)
1831	for (y = 0; y < MAP_HEIGHT (m); y++)
1832	for (op = get_map_ob (m, x, y); op != NULL; op = op->above)
1833	{	1003	{
1834	if (QUERY_FLAG (op, FLAG_MONSTER))	1004	if (QUERY_FLAG (op, FLAG_MONSTER))
1835	{	1005	{
1836	total_exp += op->stats.exp;	1006	total_exp += op->stats.exp;
1837	monster_cnt++;	1007	monster_cnt++;
1838	}	1008	}
1839		1009
1840	if (QUERY_FLAG (op, FLAG_GENERATOR))	1010	if (QUERY_FLAG (op, FLAG_GENERATOR))
1841	{	1011	{
1842	total_exp += op->stats.exp;	1012	total_exp += op->stats.exp;
		1013
1843	at = type_to_archetype (GENERATE_TYPE (op));	1014	if (archetype *at = type_to_archetype (GENERATE_TYPE (op)))
1844
1845	if (at != NULL)
1846	total_exp += at->clone.stats.exp * 8;	1015	total_exp += at->clone.stats.exp * 8;
1847		1016
1848	monster_cnt++;	1017	monster_cnt++;
1849	}	1018	}
1850	}	1019	}
1851		1020
1852	avgexp = (double) total_exp / monster_cnt;	1021	avgexp = (double) total_exp / monster_cnt;
1853		1022
1854	for (i = 1; i <= settings.max_level; i++)	1023	for (int i = 1; i <= settings.max_level; i++)
1855	{
1856	if ((level_exp (i, 1) - level_exp (i - 1, 1)) > (100 * avgexp))	1024	if ((level_exp (i, 1) - level_exp (i - 1, 1)) > (100 * avgexp))
1857	{
1858	/* LOG(llevDebug, "Calculated difficulty for map: %s: %d\n", m->name, i); */
1859	return i;	1025	return i;
1860	}
1861	}
1862		1026
1863	return 1;	1027	return 1;
1864	}
1865
1866	void
1867	clean_tmp_map (maptile *m)
1868	{
1869	if (m->tmpname == NULL)
1870	return;
1871	INVOKE_MAP (CLEAN, m);
1872	(void) unlink (m->tmpname);
1873	}
1874
1875	void
1876	free_all_maps (void)
1877	{
1878	int real_maps = 0;
1879
1880	while (first_map)
1881	{
1882	/* I think some of the callers above before it gets here set this to be
1883	* saving, but we still want to free this data
1884	*/
1885	if (first_map->in_memory == MAP_SAVING)
1886	first_map->in_memory = MAP_IN_MEMORY;
1887	delete_map (first_map);
1888	real_maps++;
1889	}
1890	LOG (llevDebug, "free_all_maps: Freed %d maps\n", real_maps);
1891	}	1028	}
1892		1029
1893	/* change_map_light() - used to change map light level (darkness)	1030	/* change_map_light() - used to change map light level (darkness)
1894	* up or down. Returns true if successful. It should now be	1031	* up or down. Returns true if successful. It should now be
1895	* possible to change a value by more than 1.	1032	* possible to change a value by more than 1.
1896	* Move this from los.c to map.c since this is more related	1033	* Move this from los.c to map.c since this is more related
1897	* to maps than los.	1034	* to maps than los.
1898	* postive values make it darker, negative make it brighter	1035	* postive values make it darker, negative make it brighter
1899	*/	1036	*/
1900
1901	int	1037	int
1902	change_map_light (maptile *m, int change)	1038	maptile::change_map_light (int change)
1903	{	1039	{
1904	int new_level = m->darkness + change;	1040	int new_level = darkness + change;
1905		1041
1906	/* Nothing to do */	1042	/* Nothing to do */
1907	if (!change || (new_level <= 0 && m->darkness == 0) || (new_level >= MAX_DARKNESS && m->darkness >= MAX_DARKNESS))	1043	if (!change || (new_level <= 0 && darkness == 0) || (new_level >= MAX_DARKNESS && darkness >= MAX_DARKNESS))
1908	{
1909	return 0;	1044	return 0;
1910	}
1911		1045
1912	/* inform all players on the map */	1046	/* inform all players on the map */
1913	if (change > 0)	1047	if (change > 0)
1914	new_info_map (NDI_BLACK | NDI_UNIQUE, m, "It becomes darker.");	1048	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes darker.");
1915	else	1049	else
1916	new_info_map (NDI_BLACK | NDI_UNIQUE, m, "It becomes brighter.");	1050	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes brighter.");
1917		1051
1918	/* Do extra checking. since m->darkness is a unsigned value,	1052	/* Do extra checking. since darkness is a unsigned value,
1919	* we need to be extra careful about negative values.	1053	* we need to be extra careful about negative values.
1920	* In general, the checks below are only needed if change	1054	* In general, the checks below are only needed if change
1921	* is not +/-1	1055	* is not +/-1
1922	*/	1056	*/
1923	if (new_level < 0)	1057	if (new_level < 0)
1924	m->darkness = 0;	1058	darkness = 0;
1925	else if (new_level >= MAX_DARKNESS)	1059	else if (new_level >= MAX_DARKNESS)
1926	m->darkness = MAX_DARKNESS;	1060	darkness = MAX_DARKNESS;
1927	else	1061	else
1928	m->darkness = new_level;	1062	darkness = new_level;
1929		1063
1930	/* All clients need to get re-updated for the change */	1064	/* All clients need to get re-updated for the change */
1931	update_all_map_los (m);	1065	update_all_map_los (this);
1932	return 1;	1066	return 1;
1933	}	1067	}
1934
1935		1068
1936	/*	1069	/*
1937	* This function updates various attributes about a specific space	1070	* This function updates various attributes about a specific space
1938	* on the map (what it looks like, whether it blocks magic,	1071	* on the map (what it looks like, whether it blocks magic,
1939	* has a living creatures, prevents people from passing	1072	* has a living creatures, prevents people from passing
1940	* through, etc)	1073	* through, etc)
1941	*/	1074	*/
1942	void	1075	void
1943	update_position (maptile *m, int x, int y)	1076	mapspace::update_ ()
1944	{	1077	{
1945	object *tmp, *last = NULL;	1078	object *tmp, *last = 0;
1946	uint8 flags = 0, oldflags, light = 0, anywhere = 0;	1079	uint8 flags = P_UPTODATE, light = 0, anywhere = 0;
1947	New_Face *top, *floor, *middle;	1080	facetile *top, *floor, *middle;
1948	object *top_obj, *floor_obj, *middle_obj;	1081	object *top_obj, *floor_obj, *middle_obj;
1949	MoveType move_block = 0, move_slow = 0, move_on = 0, move_off = 0, move_allow = 0;	1082	MoveType move_block = 0, move_slow = 0, move_on = 0, move_off = 0, move_allow = 0;
1950		1083
1951	oldflags = GET_MAP_FLAGS (m, x, y);
1952	if (!(oldflags & P_NEED_UPDATE))
1953	{
1954	LOG (llevDebug, "update_position called with P_NEED_UPDATE not set: %s (%d, %d)\n", m->path, x, y);
1955	return;
1956	}
1957
1958	middle = blank_face;	1084	middle = blank_face;
1959	top = blank_face;	1085	top = blank_face;
1960	floor = blank_face;	1086	floor = blank_face;
1961		1087
1962	middle_obj = NULL;	1088	middle_obj = 0;
1963	top_obj = NULL;	1089	top_obj = 0;
1964	floor_obj = NULL;	1090	floor_obj = 0;
1965		1091
1966	for (tmp = get_map_ob (m, x, y); tmp; last = tmp, tmp = tmp->above)	1092	for (tmp = bot; tmp; last = tmp, tmp = tmp->above)
1967	{	1093	{
1968
1969	/* This could be made additive I guess (two lights better than	1094	/* This could be made additive I guess (two lights better than
1970	* one). But if so, it shouldn't be a simple additive - 2	1095	* one). But if so, it shouldn't be a simple additive - 2
1971	* light bulbs do not illuminate twice as far as once since	1096	* light bulbs do not illuminate twice as far as once since
1972	* it is a disapation factor that is squared (or is it cubed?)	1097	* it is a dissapation factor that is cubed.
1973	*/	1098	*/
1974	if (tmp->glow_radius > light)	1099	if (tmp->glow_radius > light)
1975	light = tmp->glow_radius;	1100	light = tmp->glow_radius;
1976		1101
1977	/* This call is needed in order to update objects the player	1102	/* This call is needed in order to update objects the player
…		…
2015	{	1140	{
2016	middle = tmp->face;	1141	middle = tmp->face;
2017	middle_obj = tmp;	1142	middle_obj = tmp;
2018	}	1143	}
2019	}	1144	}
		1145
2020	if (tmp == tmp->above)	1146	if (tmp == tmp->above)
2021	{	1147	{
2022	LOG (llevError, "Error in structure of map\n");	1148	LOG (llevError, "Error in structure of map\n");
2023	exit (-1);	1149	exit (-1);
2024	}	1150	}
2025		1151
2026	move_slow |= tmp->move_slow;	1152	move_slow |= tmp->move_slow;
2027	move_block |= tmp->move_block;	1153	move_block |= tmp->move_block;
2028	move_on |= tmp->move_on;	1154	move_on |= tmp->move_on;
2029	move_off |= tmp->move_off;	1155	move_off |= tmp->move_off;
2030	move_allow |= tmp->move_allow;	1156	move_allow |= tmp->move_allow;
2031		1157
2032	if (QUERY_FLAG (tmp, FLAG_ALIVE))
2033	flags |= P_IS_ALIVE;
2034	if (QUERY_FLAG (tmp, FLAG_NO_MAGIC))
2035	flags |= P_NO_MAGIC;
2036	if (QUERY_FLAG (tmp, FLAG_DAMNED))
2037	flags |= P_NO_CLERIC;
2038	if (tmp->type == SAFE_GROUND)
2039	flags |= P_SAFE;
2040
2041	if (QUERY_FLAG (tmp, FLAG_BLOCKSVIEW))	1158	if (QUERY_FLAG (tmp, FLAG_BLOCKSVIEW)) flags |= P_BLOCKSVIEW;
2042	flags |= P_BLOCKSVIEW;	1159	if (QUERY_FLAG (tmp, FLAG_NO_MAGIC)) flags |= P_NO_MAGIC;
2043	} /* for stack of objects */	1160	if (tmp->type == PLAYER) flags |= P_PLAYER;
2044		1161	if (tmp->type == SAFE_GROUND) flags |= P_SAFE;
2045	/* we don't want to rely on this function to have accurate flags, but	1162	if (QUERY_FLAG (tmp, FLAG_ALIVE)) flags |= P_IS_ALIVE;
2046	* since we're already doing the work, we calculate them here.	1163	if (QUERY_FLAG (tmp, FLAG_DAMNED)) flags |= P_NO_CLERIC;
2047	* if they don't match, logic is broken someplace.
2048	*/
2049	if (((oldflags & ~(P_NEED_UPDATE | P_NO_ERROR)) != flags) && (!(oldflags & P_NO_ERROR)))
2050	{	1164	}
2051	LOG (llevDebug, "update_position: updated flags do not match old flags: %s (old=%d,new=%d) %x != %x\n",	1165
2052	m->path, x, y, (oldflags & ~P_NEED_UPDATE), flags);	1166	this->light = light;
2053	}	1167	this->flags_ = flags;
2054	SET_MAP_FLAGS (m, x, y, flags);	1168	this->move_block = move_block & ~move_allow;
2055	SET_MAP_MOVE_BLOCK (m, x, y, move_block & ~move_allow);	1169	this->move_on = move_on;
2056	SET_MAP_MOVE_ON (m, x, y, move_on);	1170	this->move_off = move_off;
2057	SET_MAP_MOVE_OFF (m, x, y, move_off);	1171	this->move_slow = move_slow;
2058	SET_MAP_MOVE_SLOW (m, x, y, move_slow);
2059		1172
2060	/* At this point, we have a floor face (if there is a floor),	1173	/* At this point, we have a floor face (if there is a floor),
2061	* and the floor is set - we are not going to touch it at	1174	* and the floor is set - we are not going to touch it at
2062	* this point.	1175	* this point.
2063	* middle contains the highest visibility face.	1176	* middle contains the highest visibility face.
…		…
2088		1201
2089	/* If two top faces are already set, quit processing */	1202	/* If two top faces are already set, quit processing */
2090	if ((top != blank_face) && (middle != blank_face))	1203	if ((top != blank_face) && (middle != blank_face))
2091	break;	1204	break;
2092		1205
2093	/* Only show visible faces, unless its the editor - show all */	1206	/* Only show visible faces */
2094	if (!tmp->invisible || editor)	1207	if (!tmp->invisible)
2095	{	1208	{
2096	/* Fill in top if needed */	1209	/* Fill in top if needed */
2097	if (top == blank_face)	1210	if (top == blank_face)
2098	{	1211	{
2099	top = tmp->face;	1212	top = tmp->face;
…		…
2117	break;	1230	break;
2118	}	1231	}
2119	}	1232	}
2120	}	1233	}
2121	}	1234	}
		1235
2122	if (middle == floor)	1236	if (middle == floor)
2123	middle = blank_face;	1237	middle = blank_face;
		1238
2124	if (top == middle)	1239	if (top == middle)
2125	middle = blank_face;	1240	middle = blank_face;
2126	SET_MAP_FACE (m, x, y, top, 0);
2127	if (top != blank_face)
2128	SET_MAP_FACE_OBJ (m, x, y, top_obj, 0);
2129	else
2130	SET_MAP_FACE_OBJ (m, x, y, NULL, 0);
2131	SET_MAP_FACE (m, x, y, middle, 1);
2132	if (middle != blank_face)
2133	SET_MAP_FACE_OBJ (m, x, y, middle_obj, 1);
2134	else
2135	SET_MAP_FACE_OBJ (m, x, y, NULL, 1);
2136	SET_MAP_FACE (m, x, y, floor, 2);
2137	if (floor != blank_face)
2138	SET_MAP_FACE_OBJ (m, x, y, floor_obj, 2);
2139	else
2140	SET_MAP_FACE_OBJ (m, x, y, NULL, 2);
2141	SET_MAP_LIGHT (m, x, y, light);
2142	}
2143		1241
2144		1242	faces [0] = top; faces_obj [0] = top != blank_face ? top_obj : 0;
2145	void	1243	faces [1] = middle; faces_obj [1] = middle != blank_face ? middle_obj : 0;
2146	set_map_reset_time (maptile *map)	1244	faces [2] = floor; faces_obj [2] = floor != blank_face ? floor_obj : 0;
2147	{
2148	int timeout;
2149
2150	timeout = MAP_RESET_TIMEOUT (map);
2151	if (timeout <= 0)
2152	timeout = MAP_DEFAULTRESET;
2153	if (timeout >= MAP_MAXRESET)
2154	timeout = MAP_MAXRESET;
2155	MAP_WHEN_RESET (map) = seconds () + timeout;
2156	}	1245	}
2157		1246
		1247	uint64
		1248	mapspace::volume () const
		1249	{
		1250	uint64 vol = 0;
		1251
		1252	for (object *op = top; op && !op->flag [FLAG_NO_PICK]; op = op->below)
		1253	vol += op->volume ();
		1254
		1255	return vol;
		1256	}
		1257
2158	/* this updates the orig_map->tile_map[tile_num] value after loading	1258	/* this updates the orig_map->tile_map[tile_num] value after finding
2159	* the map. It also takes care of linking back the freshly loaded	1259	* the map. It also takes care of linking back the freshly found
2160	* maps tile_map values if it tiles back to this one. It returns	1260	* maps tile_map values if it tiles back to this one. It returns
2161	* the value of orig_map->tile_map[tile_num]. It really only does this	1261	* the value of orig_map->tile_map[tile_num].
2162	* so that it is easier for calling functions to verify success.
2163	*/	1262	*/
2164
2165	static maptile *	1263	static inline maptile *
2166	load_and_link_tiled_map (maptile *orig_map, int tile_num)	1264	find_and_link (maptile *orig_map, int tile_num)
2167	{	1265	{
		1266	maptile *mp = orig_map->tile_map [tile_num];
		1267
		1268	if (!mp)
		1269	{
		1270	mp = orig_map->find_sync (orig_map->tile_path [tile_num], orig_map);
		1271
		1272	if (!mp)
		1273	{
		1274	// emergency mode, manufacture a dummy map, this creates a memleak, but thats fine
		1275	LOG (llevError, "FATAL: cannot load tiled map %s from %s, leaking memory and worse!\n",
		1276	&orig_map->tile_path[tile_num], &orig_map->path);
		1277	mp = new maptile (1, 1);
		1278	mp->alloc ();
		1279	mp->in_memory = MAP_IN_MEMORY;
		1280	}
		1281	}
		1282
2168	int dest_tile = (tile_num + 2) % 4;	1283	int dest_tile = (tile_num + 2) % 4;
2169	char *path = path_combine_and_normalize (orig_map->path, orig_map->tile_path[tile_num]);
2170		1284
2171	orig_map->tile_map[tile_num] = ready_map_name (path, 0);	1285	orig_map->tile_map [tile_num] = mp;
2172		1286
2173	/* need to do a strcmp here as the orig_map->path is not a shared string */	1287	// optimisation: back-link map to origin map if euclidean
2174	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))	1288	//TODO: non-euclidean maps MUST GO
		1289	if (orig_map->tile_map[tile_num]->tile_path[dest_tile] == orig_map->path)
2175	orig_map->tile_map[tile_num]->tile_map[dest_tile] = orig_map;	1290	orig_map->tile_map[tile_num]->tile_map[dest_tile] = orig_map;
2176		1291
2177	return orig_map->tile_map[tile_num];	1292	return mp;
		1293	}
		1294
		1295	static inline void
		1296	load_and_link (maptile *orig_map, int tile_num)
		1297	{
		1298	find_and_link (orig_map, tile_num)->load_sync ();
2178	}	1299	}
2179		1300
2180	/* this returns TRUE if the coordinates (x,y) are out of	1301	/* this returns TRUE if the coordinates (x,y) are out of
2181	* map m. This function also takes into account any	1302	* map m. This function also takes into account any
2182	* tiling considerations, loading adjacant maps as needed.	1303	* tiling considerations, loading adjacant maps as needed.
2183	* This is the function should always be used when it	1304	* This is the function should always be used when it
2184	* necessary to check for valid coordinates.	1305	* necessary to check for valid coordinates.
2185	* This function will recursively call itself for the	1306	* This function will recursively call itself for the
2186	* tiled maps.	1307	* tiled maps.
2187	*
2188	*
2189	*/	1308	*/
2190	int	1309	int
2191	out_of_map (maptile *m, int x, int y)	1310	out_of_map (maptile *m, int x, int y)
2192	{	1311	{
2193
2194	/* If we get passed a null map, this is obviously the	1312	/* If we get passed a null map, this is obviously the
2195	* case. This generally shouldn't happen, but if the	1313	* case. This generally shouldn't happen, but if the
2196	* map loads fail below, it could happen.	1314	* map loads fail below, it could happen.
2197	*/	1315	*/
2198	if (!m)	1316	if (!m)
…		…
2200		1318
2201	if (x < 0)	1319	if (x < 0)
2202	{	1320	{
2203	if (!m->tile_path[3])	1321	if (!m->tile_path[3])
2204	return 1;	1322	return 1;
		1323
2205	if (!m->tile_map[3] || m->tile_map[3]->in_memory != MAP_IN_MEMORY)	1324	if (!m->tile_map[3] || m->tile_map[3]->in_memory != MAP_IN_MEMORY)
2206	{	1325	find_and_link (m, 3);
2207	load_and_link_tiled_map (m, 3);	1326
2208	}
2209	return (out_of_map (m->tile_map[3], x + MAP_WIDTH (m->tile_map[3]), y));	1327	return out_of_map (m->tile_map[3], x + m->tile_map[3]->width, y);
2210	}	1328	}
2211	if (x >= MAP_WIDTH (m))	1329
		1330	if (x >= m->width)
2212	{	1331	{
2213	if (!m->tile_path[1])	1332	if (!m->tile_path[1])
2214	return 1;	1333	return 1;
		1334
2215	if (!m->tile_map[1] || m->tile_map[1]->in_memory != MAP_IN_MEMORY)	1335	if (!m->tile_map[1] || m->tile_map[1]->in_memory != MAP_IN_MEMORY)
2216	{	1336	find_and_link (m, 1);
2217	load_and_link_tiled_map (m, 1);	1337
2218	}
2219	return (out_of_map (m->tile_map[1], x - MAP_WIDTH (m), y));	1338	return out_of_map (m->tile_map[1], x - m->width, y);
2220	}	1339	}
		1340
2221	if (y < 0)	1341	if (y < 0)
2222	{	1342	{
2223	if (!m->tile_path[0])	1343	if (!m->tile_path[0])
2224	return 1;	1344	return 1;
		1345
2225	if (!m->tile_map[0] || m->tile_map[0]->in_memory != MAP_IN_MEMORY)	1346	if (!m->tile_map[0] || m->tile_map[0]->in_memory != MAP_IN_MEMORY)
2226	{	1347	find_and_link (m, 0);
2227	load_and_link_tiled_map (m, 0);	1348
2228	}
2229	return (out_of_map (m->tile_map[0], x, y + MAP_HEIGHT (m->tile_map[0])));	1349	return out_of_map (m->tile_map[0], x, y + m->tile_map[0]->height);
2230	}	1350	}
2231	if (y >= MAP_HEIGHT (m))	1351
		1352	if (y >= m->height)
2232	{	1353	{
2233	if (!m->tile_path[2])	1354	if (!m->tile_path[2])
2234	return 1;	1355	return 1;
		1356
2235	if (!m->tile_map[2] || m->tile_map[2]->in_memory != MAP_IN_MEMORY)	1357	if (!m->tile_map[2] || m->tile_map[2]->in_memory != MAP_IN_MEMORY)
2236	{	1358	find_and_link (m, 2);
2237	load_and_link_tiled_map (m, 2);	1359
2238	}
2239	return (out_of_map (m->tile_map[2], x, y - MAP_HEIGHT (m)));	1360	return out_of_map (m->tile_map[2], x, y - m->height);
2240	}	1361	}
2241		1362
2242	/* Simple case - coordinates are within this local	1363	/* Simple case - coordinates are within this local
2243	* map.	1364	* map.
2244	*/	1365	*/
…		…
2247		1368
2248	/* This is basically the same as out_of_map above, but	1369	/* This is basically the same as out_of_map above, but
2249	* instead we return NULL if no map is valid (coordinates	1370	* instead we return NULL if no map is valid (coordinates
2250	* out of bounds and no tiled map), otherwise it returns	1371	* out of bounds and no tiled map), otherwise it returns
2251	* the map as that the coordinates are really on, and	1372	* the map as that the coordinates are really on, and
2252	* updates x and y to be the localized coordinates.	1373	* updates x and y to be the localised coordinates.
2253	* Using this is more efficient of calling out_of_map	1374	* Using this is more efficient of calling out_of_map
2254	* and then figuring out what the real map is	1375	* and then figuring out what the real map is
2255	*/	1376	*/
2256	maptile *	1377	maptile *
2257	get_map_from_coord (maptile *m, sint16 * x, sint16 * y)	1378	maptile::xy_find (sint16 &x, sint16 &y)
2258	{	1379	{
2259
2260	if (*x < 0)	1380	if (x < 0)
2261	{	1381	{
2262	if (!m->tile_path[3])	1382	if (!tile_path[3])
2263	return NULL;	1383	return 0;
2264	if (!m->tile_map[3] || m->tile_map[3]->in_memory != MAP_IN_MEMORY)
2265	load_and_link_tiled_map (m, 3);
2266		1384
2267	*x += MAP_WIDTH (m->tile_map[3]);	1385	find_and_link (this, 3);
2268	return (get_map_from_coord (m->tile_map[3], x, y));	1386	x += tile_map[3]->width;
2269	}	1387	return tile_map[3]->xy_find (x, y);
2270	if (*x >= MAP_WIDTH (m))
2271	{	1388	}
		1389
		1390	if (x >= width)
		1391	{
2272	if (!m->tile_path[1])	1392	if (!tile_path[1])
2273	return NULL;	1393	return 0;
2274	if (!m->tile_map[1] || m->tile_map[1]->in_memory != MAP_IN_MEMORY)
2275	load_and_link_tiled_map (m, 1);
2276		1394
2277	*x -= MAP_WIDTH (m);	1395	find_and_link (this, 1);
2278	return (get_map_from_coord (m->tile_map[1], x, y));	1396	x -= width;
		1397	return tile_map[1]->xy_find (x, y);
2279	}	1398	}
		1399
2280	if (*y < 0)	1400	if (y < 0)
2281	{	1401	{
2282	if (!m->tile_path[0])	1402	if (!tile_path[0])
2283	return NULL;	1403	return 0;
2284	if (!m->tile_map[0] || m->tile_map[0]->in_memory != MAP_IN_MEMORY)
2285	load_and_link_tiled_map (m, 0);
2286		1404
2287	*y += MAP_HEIGHT (m->tile_map[0]);	1405	find_and_link (this, 0);
2288	return (get_map_from_coord (m->tile_map[0], x, y));	1406	y += tile_map[0]->height;
2289	}	1407	return tile_map[0]->xy_find (x, y);
2290	if (*y >= MAP_HEIGHT (m))
2291	{	1408	}
		1409
		1410	if (y >= height)
		1411	{
2292	if (!m->tile_path[2])	1412	if (!tile_path[2])
2293	return NULL;	1413	return 0;
2294	if (!m->tile_map[2] || m->tile_map[2]->in_memory != MAP_IN_MEMORY)
2295	load_and_link_tiled_map (m, 2);
2296		1414
2297	*y -= MAP_HEIGHT (m);	1415	find_and_link (this, 2);
2298	return (get_map_from_coord (m->tile_map[2], x, y));	1416	y -= height;
		1417	return tile_map[2]->xy_find (x, y);
2299	}	1418	}
2300		1419
2301	/* Simple case - coordinates are within this local	1420	/* Simple case - coordinates are within this local
2302	* map.	1421	* map.
2303	*/	1422	*/
2304
2305	return m;	1423	return this;
2306	}	1424	}
2307		1425
2308	/**	1426	/**
2309	* Return whether map2 is adjacent to map1. If so, store the distance from	1427	* Return whether map2 is adjacent to map1. If so, store the distance from
2310	* map1 to map2 in dx/dy.	1428	* map1 to map2 in dx/dy.
2311	*/	1429	*/
2312	static int	1430	int
2313	adjacent_map (const maptile *map1, const maptile *map2, int *dx, int *dy)	1431	adjacent_map (const maptile *map1, const maptile *map2, int *dx, int *dy)
2314	{	1432	{
2315	if (!map1 || !map2)	1433	if (!map1 || !map2)
2316	return 0;	1434	return 0;
2317		1435
		1436	//TODO: this doesn't actually check corretcly when intermediate maps are not loaded
		1437	//fix: compare paths instead (this is likely faster, too!)
2318	if (map1 == map2)	1438	if (map1 == map2)
2319	{	1439	{
2320	*dx = 0;	1440	*dx = 0;
2321	*dy = 0;	1441	*dy = 0;
2322
2323	}	1442	}
2324	else if (map1->tile_map[0] == map2)	1443	else if (map1->tile_map[0] == map2)
2325	{ /* up */	1444	{ /* up */
2326	*dx = 0;	1445	*dx = 0;
2327	*dy = -MAP_HEIGHT (map2);	1446	*dy = -map2->height;
2328	}	1447	}
2329	else if (map1->tile_map[1] == map2)	1448	else if (map1->tile_map[1] == map2)
2330	{ /* right */	1449	{ /* right */
2331	*dx = MAP_WIDTH (map1);	1450	*dx = map1->width;
2332	*dy = 0;	1451	*dy = 0;
2333	}	1452	}
2334	else if (map1->tile_map[2] == map2)	1453	else if (map1->tile_map[2] == map2)
2335	{ /* down */	1454	{ /* down */
2336	*dx = 0;	1455	*dx = 0;
2337	*dy = MAP_HEIGHT (map1);	1456	*dy = map1->height;
2338	}	1457	}
2339	else if (map1->tile_map[3] == map2)	1458	else if (map1->tile_map[3] == map2)
2340	{ /* left */	1459	{ /* left */
2341	*dx = -MAP_WIDTH (map2);	1460	*dx = -map2->width;
2342	*dy = 0;	1461	*dy = 0;
2343
2344	}	1462	}
2345	else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[1] == map2)	1463	else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[1] == map2)
2346	{ /* up right */	1464	{ /* up right */
2347	*dx = MAP_WIDTH (map1->tile_map[0]);	1465	*dx = map1->tile_map[0]->width;
2348	*dy = -MAP_HEIGHT (map1->tile_map[0]);	1466	*dy = -map1->tile_map[0]->height;
2349	}	1467	}
2350	else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[3] == map2)	1468	else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[3] == map2)
2351	{ /* up left */	1469	{ /* up left */
2352	*dx = -MAP_WIDTH (map2);	1470	*dx = -map2->width;
2353	*dy = -MAP_HEIGHT (map1->tile_map[0]);	1471	*dy = -map1->tile_map[0]->height;
2354	}	1472	}
2355	else if (map1->tile_map[1] && map1->tile_map[1]->tile_map[0] == map2)	1473	else if (map1->tile_map[1] && map1->tile_map[1]->tile_map[0] == map2)
2356	{ /* right up */	1474	{ /* right up */
2357	*dx = MAP_WIDTH (map1);	1475	*dx = map1->width;
2358	*dy = -MAP_HEIGHT (map2);	1476	*dy = -map2->height;
2359	}	1477	}
2360	else if (map1->tile_map[1] && map1->tile_map[1]->tile_map[2] == map2)	1478	else if (map1->tile_map[1] && map1->tile_map[1]->tile_map[2] == map2)
2361	{ /* right down */	1479	{ /* right down */
2362	*dx = MAP_WIDTH (map1);	1480	*dx = map1->width;
2363	*dy = MAP_HEIGHT (map1->tile_map[1]);	1481	*dy = map1->tile_map[1]->height;
2364	}	1482	}
2365	else if (map1->tile_map[2] && map1->tile_map[2]->tile_map[1] == map2)	1483	else if (map1->tile_map[2] && map1->tile_map[2]->tile_map[1] == map2)
2366	{ /* down right */	1484	{ /* down right */
2367	*dx = MAP_WIDTH (map1->tile_map[2]);	1485	*dx = map1->tile_map[2]->width;
2368	*dy = MAP_HEIGHT (map1);	1486	*dy = map1->height;
2369	}	1487	}
2370	else if (map1->tile_map[2] && map1->tile_map[2]->tile_map[3] == map2)	1488	else if (map1->tile_map[2] && map1->tile_map[2]->tile_map[3] == map2)
2371	{ /* down left */	1489	{ /* down left */
2372	*dx = -MAP_WIDTH (map2);	1490	*dx = -map2->width;
2373	*dy = MAP_HEIGHT (map1);	1491	*dy = map1->height;
2374	}	1492	}
2375	else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[0] == map2)	1493	else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[0] == map2)
2376	{ /* left up */	1494	{ /* left up */
2377	*dx = -MAP_WIDTH (map1->tile_map[3]);	1495	*dx = -map1->tile_map[3]->width;
2378	*dy = -MAP_HEIGHT (map2);	1496	*dy = -map2->height;
2379	}	1497	}
2380	else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[2] == map2)	1498	else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[2] == map2)
2381	{ /* left down */	1499	{ /* left down */
2382	*dx = -MAP_WIDTH (map1->tile_map[3]);	1500	*dx = -map1->tile_map[3]->width;
2383	*dy = MAP_HEIGHT (map1->tile_map[3]);	1501	*dy = map1->tile_map[3]->height;
2384
2385	}	1502	}
2386	else	1503	else
2387	{ /* not "adjacent" enough */
2388	return 0;	1504	return 0;
2389	}
2390		1505
2391	return 1;	1506	return 1;
		1507	}
		1508
		1509	maptile *
		1510	maptile::xy_load (sint16 &x, sint16 &y)
		1511	{
		1512	maptile *map = xy_find (x, y);
		1513
		1514	if (map)
		1515	map->load_sync ();
		1516
		1517	return map;
		1518	}
		1519
		1520	maptile *
		1521	get_map_from_coord (maptile *m, sint16 *x, sint16 *y)
		1522	{
		1523	return m->xy_load (*x, *y);
2392	}	1524	}
2393		1525
2394	/* From map.c	1526	/* From map.c
2395	* This is used by get_player to determine where the other	1527	* This is used by get_player to determine where the other
2396	* creature is. get_rangevector takes into account map tiling,	1528	* creature is. get_rangevector takes into account map tiling,
2397	* so you just can not look the the map coordinates and get the	1529	* so you just can not look the the map coordinates and get the
2398	* righte value. distance_x/y are distance away, which	1530	* righte value. distance_x/y are distance away, which
2399	* can be negativbe. direction is the crossfire direction scheme	1531	* can be negative. direction is the crossfire direction scheme
2400	* that the creature should head. part is the part of the	1532	* that the creature should head. part is the part of the
2401	* monster that is closest.	1533	* monster that is closest.
2402	*	1534	*
2403	* get_rangevector looks at op1 and op2, and fills in the	1535	* get_rangevector looks at op1 and op2, and fills in the
2404	* structure for op1 to get to op2.	1536	* structure for op1 to get to op2.
…		…
2409	* be unexpected	1541	* be unexpected
2410	*	1542	*
2411	* currently, the only flag supported (0x1) is don't translate for	1543	* currently, the only flag supported (0x1) is don't translate for
2412	* closest body part of 'op1'	1544	* closest body part of 'op1'
2413	*/	1545	*/
2414
2415	void	1546	void
2416	get_rangevector (object *op1, object *op2, rv_vector * retval, int flags)	1547	get_rangevector (object *op1, object *op2, rv_vector * retval, int flags)
2417	{	1548	{
2418	if (!adjacent_map (op1->map, op2->map, &retval->distance_x, &retval->distance_y))	1549	if (!adjacent_map (op1->map, op2->map, &retval->distance_x, &retval->distance_y))
2419	{	1550	{
2420	/* be conservative and fill in _some_ data */	1551	/* be conservative and fill in _some_ data */
2421	retval->distance = 100000;	1552	retval->distance = 10000;
2422	retval->distance_x = 32767;	1553	retval->distance_x = 10000;
2423	retval->distance_y = 32767;	1554	retval->distance_y = 10000;
2424	retval->direction = 0;	1555	retval->direction = 0;
2425	retval->part = 0;	1556	retval->part = 0;
2426	}	1557	}
2427	else	1558	else
2428	{	1559	{
…		…
2433		1564
2434	best = op1;	1565	best = op1;
2435	/* If this is multipart, find the closest part now */	1566	/* If this is multipart, find the closest part now */
2436	if (!(flags & 0x1) && op1->more)	1567	if (!(flags & 0x1) && op1->more)
2437	{	1568	{
2438	object *tmp;
2439	int best_distance = retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y, tmpi;	1569	int best_distance = retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y, tmpi;
2440		1570
2441	/* we just take the offset of the piece to head to figure	1571	/* we just take the offset of the piece to head to figure
2442	* distance instead of doing all that work above again	1572	* distance instead of doing all that work above again
2443	* since the distance fields we set above are positive in the	1573	* since the distance fields we set above are positive in the
2444	* same axis as is used for multipart objects, the simply arithmetic	1574	* same axis as is used for multipart objects, the simply arithmetic
2445	* below works.	1575	* below works.
2446	*/	1576	*/
2447	for (tmp = op1->more; tmp != NULL; tmp = tmp->more)	1577	for (object *tmp = op1->more; tmp; tmp = tmp->more)
2448	{	1578	{
2449	tmpi = (op1->x - tmp->x + retval->distance_x) * (op1->x - tmp->x + retval->distance_x) +	1579	tmpi = (op1->x - tmp->x + retval->distance_x) * (op1->x - tmp->x + retval->distance_x) +
2450	(op1->y - tmp->y + retval->distance_y) * (op1->y - tmp->y + retval->distance_y);	1580	(op1->y - tmp->y + retval->distance_y) * (op1->y - tmp->y + retval->distance_y);
2451	if (tmpi < best_distance)	1581	if (tmpi < best_distance)
2452	{	1582	{
2453	best_distance = tmpi;	1583	best_distance = tmpi;
2454	best = tmp;	1584	best = tmp;
2455	}	1585	}
2456	}	1586	}
		1587
2457	if (best != op1)	1588	if (best != op1)
2458	{	1589	{
2459	retval->distance_x += op1->x - best->x;	1590	retval->distance_x += op1->x - best->x;
2460	retval->distance_y += op1->y - best->y;	1591	retval->distance_y += op1->y - best->y;
2461	}	1592	}
2462	}	1593	}
		1594
2463	retval->part = best;	1595	retval->part = best;
2464	retval->distance = isqrt (retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y);	1596	retval->distance = upos_max (abs (retval->distance_x), abs (retval->distance_y));
2465	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);	1597	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);
2466	}	1598	}
2467	}	1599	}
2468		1600
2469	/* this is basically the same as get_rangevector above, but instead of	1601	/* this is basically the same as get_rangevector above, but instead of
…		…
2474	* flags has no meaning for this function at this time - I kept it in to	1606	* flags has no meaning for this function at this time - I kept it in to
2475	* be more consistant with the above function and also in case they are needed	1607	* be more consistant with the above function and also in case they are needed
2476	* for something in the future. Also, since no object is pasted, the best	1608	* for something in the future. Also, since no object is pasted, the best
2477	* field of the rv_vector is set to NULL.	1609	* field of the rv_vector is set to NULL.
2478	*/	1610	*/
2479
2480	void	1611	void
2481	get_rangevector_from_mapcoord (const maptile *m, int x, int y, const object *op2, rv_vector * retval, int flags)	1612	get_rangevector_from_mapcoord (const maptile *m, int x, int y, const object *op2, rv_vector *retval, int flags)
2482	{	1613	{
2483	if (!adjacent_map (m, op2->map, &retval->distance_x, &retval->distance_y))	1614	if (!adjacent_map (m, op2->map, &retval->distance_x, &retval->distance_y))
2484	{	1615	{
2485	/* be conservative and fill in _some_ data */	1616	/* be conservative and fill in _some_ data */
2486	retval->distance = 100000;	1617	retval->distance = 100000;
…		…
2493	{	1624	{
2494	retval->distance_x += op2->x - x;	1625	retval->distance_x += op2->x - x;
2495	retval->distance_y += op2->y - y;	1626	retval->distance_y += op2->y - y;
2496		1627
2497	retval->part = NULL;	1628	retval->part = NULL;
2498	retval->distance = isqrt (retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y);	1629	retval->distance = idistance (retval->distance_x, retval->distance_y);
2499	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);	1630	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);
2500	}	1631	}
2501	}	1632	}
2502		1633
2503	/* Returns true of op1 and op2 are effectively on the same map	1634	/* Returns true of op1 and op2 are effectively on the same map
2504	* (as related to map tiling). Note that this looks for a path from	1635	* (as related to map tiling). Note that this looks for a path from
2505	* op1 to op2, so if the tiled maps are assymetric and op2 has a path	1636	* op1 to op2, so if the tiled maps are asymetric and op2 has a path
2506	* to op1, this will still return false.	1637	* to op1, this will still return false.
2507	* Note we only look one map out to keep the processing simple	1638	* Note we only look one map out to keep the processing simple
2508	* and efficient. This could probably be a macro.	1639	* and efficient. This could probably be a macro.
2509	* MSW 2001-08-05	1640	* MSW 2001-08-05
2510	*/	1641	*/
…		…
2513	{	1644	{
2514	int dx, dy;	1645	int dx, dy;
2515		1646
2516	return adjacent_map (op1->map, op2->map, &dx, &dy);	1647	return adjacent_map (op1->map, op2->map, &dx, &dy);
2517	}	1648	}
		1649
		1650	object *
		1651	maptile::insert (object *op, int x, int y, object *originator, int flags)
		1652	{
		1653	if (!op->flag [FLAG_REMOVED])
		1654	op->remove ();
		1655
		1656	return insert_ob_in_map_at (op, this, originator, flags, x, y);
		1657	}
		1658
		1659	region *
		1660	maptile::region (int x, int y) const
		1661	{
		1662	if (regions
		1663	&& regionmap
		1664	&& !OUT_OF_REAL_MAP (this, x, y))
		1665	if (struct region *reg = regionmap [regions [y * width + x]])
		1666	return reg;
		1667
		1668	if (default_region)
		1669	return default_region;
		1670
		1671	return ::region::default_region ();
		1672	}
		1673
		1674	/* picks a random object from a style map.
		1675	* Redone by MSW so it should be faster and not use static
		1676	* variables to generate tables.
		1677	*/
		1678	object *
		1679	maptile::pick_random_object () const
		1680	{
		1681	/* while returning a null object will result in a crash, that
		1682	* is actually preferable to an infinite loop. That is because
		1683	* most servers will automatically restart in case of crash.
		1684	* Change the logic on getting the random space - shouldn't make
		1685	* any difference, but this seems clearer to me.
		1686	*/
		1687	for (int i = 1000; --i;)
		1688	{
		1689	object *pick = at (rndm (width), rndm (height)).bot;
		1690
		1691	// do not prefer big monsters just because they are big.
		1692	if (pick && pick->head_ () == pick)
		1693	return pick->head_ ();
		1694	}
		1695
		1696	// instead of crashing in the unlikely(?) case, try to return *something*
		1697	return get_archetype ("blocked");
		1698	}
		1699

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