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Comparing deliantra/server/common/map.C (file contents):
Revision 1.32 by root, Thu Oct 5 16:50:06 2006 UTC vs.
Revision 1.124 by root, Tue Sep 4 05:43:20 2007 UTC

1	/*	1	/*
2	CrossFire, A Multiplayer game for X-windows	2	* This file is part of Crossfire TRT, the Roguelike Realtime MORPG.
3		3	*
		4	* Copyright (©) 2005,2006,2007 Marc Alexander Lehmann / Robin Redeker / the Crossfire TRT team
4	Copyright (C) 2001-2003 Mark Wedel & Crossfire Development Team	5	* Copyright (©) 2001-2003,2007 Mark Wedel & Crossfire Development Team
5	Copyright (C) 1992 Frank Tore Johansen	6	* Copyright (©) 1992,2007 Frank Tore Johansen
6		7	*
7	This program is free software; you can redistribute it and/or modify	8	* Crossfire TRT is free software: you can redistribute it and/or modify
8	it under the terms of the GNU General Public License as published by	9	* it under the terms of the GNU General Public License as published by
9	the Free Software Foundation; either version 2 of the License, or	10	* the Free Software Foundation, either version 3 of the License, or
10	(at your option) any later version.	11	* (at your option) any later version.
11		12	*
12	This program is distributed in the hope that it will be useful,	13	* This program is distributed in the hope that it will be useful,
13	but WITHOUT ANY WARRANTY; without even the implied warranty of	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15	GNU General Public License for more details.	16	* GNU General Public License for more details.
16		17	*
17	You should have received a copy of the GNU General Public License	18	* You should have received a copy of the GNU General Public License
18	along with this program; if not, write to the Free Software	19	* along with this program. If not, see <http://www.gnu.org/licenses/>.
19	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	20	*
20
21	The authors can be reached via e-mail at <crossfire@schmorp.de>	21	* The authors can be reached via e-mail to <crossfire@schmorp.de>
22	*/	22	*/
23		23
24
25	#include <global.h>
26	#include <funcpoint.h>
27
28	#include <loader.h>
29	#ifndef WIN32 /* ---win32 exclude header */
30	# include <unistd.h>	24	#include <unistd.h>
31	#endif /* win32 */	25
		26	#include "global.h"
		27	#include "funcpoint.h"
		28
		29	#include "loader.h"
32		30
33	#include "path.h"	31	#include "path.h"
34
35
36	extern int nrofallocobjects, nroffreeobjects;
37
38	/*
39	* Returns the maptile which has a name matching the given argument.
40	* return NULL if no match is found.
41	*/
42
43	maptile *
44	has_been_loaded (const char *name)
45	{
46	maptile *map;
47
48	if (!name || !*name)
49	return 0;
50	for (map = first_map; map; map = map->next)
51	if (!strcmp (name, map->path))
52	break;
53	return (map);
54	}
55
56	/*
57	* This makes a path absolute outside the world of Crossfire.
58	* In other words, it prepends LIBDIR/MAPDIR/ to the given path
59	* and returns the pointer to a static array containing the result.
60	* it really should be called create_mapname
61	*/
62
63	const char *
64	create_pathname (const char *name)
65	{
66	static char buf[MAX_BUF];
67
68	/* Why? having extra / doesn't confuse unix anyplace? Dependancies
69	* someplace else in the code? msw 2-17-97
70	*/
71	if (*name == '/')
72	sprintf (buf, "%s/%s%s", settings.datadir, settings.mapdir, name);
73	else
74	sprintf (buf, "%s/%s/%s", settings.datadir, settings.mapdir, name);
75	return (buf);
76	}
77
78	/*
79	* same as create_pathname, but for the overlay maps.
80	*/
81
82	const char *
83	create_overlay_pathname (const char *name)
84	{
85	static char buf[MAX_BUF];
86
87	/* Why? having extra / doesn't confuse unix anyplace? Dependancies
88	* someplace else in the code? msw 2-17-97
89	*/
90	if (*name == '/')
91	sprintf (buf, "%s/%s%s", settings.localdir, settings.mapdir, name);
92	else
93	sprintf (buf, "%s/%s/%s", settings.localdir, settings.mapdir, name);
94	return (buf);
95	}
96
97	/*
98	* same as create_pathname, but for the template maps.
99	*/
100
101	const char *
102	create_template_pathname (const char *name)
103	{
104	static char buf[MAX_BUF];
105
106	/* Why? having extra / doesn't confuse unix anyplace? Dependancies
107	* someplace else in the code? msw 2-17-97
108	*/
109	if (*name == '/')
110	sprintf (buf, "%s/%s%s", settings.localdir, settings.templatedir, name);
111	else
112	sprintf (buf, "%s/%s/%s", settings.localdir, settings.templatedir, name);
113	return (buf);
114	}
115
116	/*
117	* This makes absolute path to the itemfile where unique objects
118	* will be saved. Converts '/' to '@'. I think it's essier maintain
119	* files than full directory structure, but if this is problem it can
120	* be changed.
121	*/
122	static const char *
123	create_items_path (const char *s)
124	{
125	static char buf[MAX_BUF];
126	char *t;
127
128	if (*s == '/')
129	s++;
130
131	sprintf (buf, "%s/%s/", settings.localdir, settings.uniquedir);
132
133	for (t = buf + strlen (buf); *s; s++, t++)
134	if (*s == '/')
135	*t = '@';
136	else
137	*t = *s;
138	*t = 0;
139	return (buf);
140	}
141
142
143	/*
144	* This function checks if a file with the given path exists.
145	* -1 is returned if it fails, otherwise the mode of the file
146	* is returned.
147	* It tries out all the compression suffixes listed in the uncomp[] array.
148	*
149	* If prepend_dir is set, then we call create_pathname (which prepends
150	* libdir & mapdir). Otherwise, we assume the name given is fully
151	* complete.
152	* Only the editor actually cares about the writablity of this -
153	* the rest of the code only cares that the file is readable.
154	* when the editor goes away, the call to stat should probably be
155	* replaced by an access instead (similar to the windows one, but
156	* that seems to be missing the prepend_dir processing
157	*/
158
159	int
160	check_path (const char *name, int prepend_dir)
161	{
162	char buf[MAX_BUF];
163
164	#ifndef WIN32
165	char *endbuf;
166	struct stat statbuf;
167	int mode = 0;
168	#endif
169
170	if (prepend_dir)
171	strcpy (buf, create_pathname (name));
172	else
173	strcpy (buf, name);
174	#ifdef WIN32 /* ***win32: check this sucker in windows style. */
175	return (_access (buf, 0));
176	#else
177
178	/* old method (strchr(buf, '\0')) seemd very odd to me -
179	* this method should be equivalant and is clearer.
180	* Can not use strcat because we need to cycle through
181	* all the names.
182	*/
183	endbuf = buf + strlen (buf);
184
185	if (stat (buf, &statbuf))
186	return -1;
187	if (!S_ISREG (statbuf.st_mode))
188	return (-1);
189
190	if (((statbuf.st_mode & S_IRGRP) && getegid () == statbuf.st_gid) ||
191	((statbuf.st_mode & S_IRUSR) && geteuid () == statbuf.st_uid) || (statbuf.st_mode & S_IROTH))
192	mode |= 4;
193
194	if ((statbuf.st_mode & S_IWGRP && getegid () == statbuf.st_gid) ||
195	(statbuf.st_mode & S_IWUSR && geteuid () == statbuf.st_uid) || (statbuf.st_mode & S_IWOTH))
196	mode |= 2;
197
198	return (mode);
199	#endif
200	}
201
202	/*
203	* Prints out debug-information about a map.
204	* Dumping these at llevError doesn't seem right, but is
205	* necessary to make sure the information is in fact logged.
206	*/
207
208	void
209	dump_map (const maptile *m)
210	{
211	LOG (llevError, "Map %s status: %d.\n", m->path, m->in_memory);
212	LOG (llevError, "Size: %dx%d Start: %d,%d\n", MAP_WIDTH (m), MAP_HEIGHT (m), MAP_ENTER_X (m), MAP_ENTER_Y (m));
213
214	if (m->msg != NULL)
215	LOG (llevError, "Message:\n%s", m->msg);
216
217	if (m->maplore != NULL)
218	LOG (llevError, "Lore:\n%s", m->maplore);
219
220	if (m->tmpname != NULL)
221	LOG (llevError, "Tmpname: %s\n", m->tmpname);
222
223	LOG (llevError, "Difficulty: %d\n", m->difficulty);
224	LOG (llevError, "Darkness: %d\n", m->darkness);
225	}
226
227	/*
228	* Prints out debug-information about all maps.
229	* This basically just goes through all the maps and calls
230	* dump_map on each one.
231	*/
232
233	void
234	dump_all_maps (void)
235	{
236	maptile *m;
237
238	for (m = first_map; m != NULL; m = m->next)
239	{
240	dump_map (m);
241	}
242	}
243		32
244	/* This rolls up wall, blocks_magic, blocks_view, etc, all into	33	/* This rolls up wall, blocks_magic, blocks_view, etc, all into
245	* one function that just returns a P_.. value (see map.h)	34	* one function that just returns a P_.. value (see map.h)
246	* it will also do map translation for tiled maps, returning	35	* it will also do map translation for tiled maps, returning
247	* new values into newmap, nx, and ny. Any and all of those	36	* new values into newmap, nx, and ny. Any and all of those
…		…
250	* is needed. The case of not passing values is if we're just	39	* is needed. The case of not passing values is if we're just
251	* checking for the existence of something on those spaces, but	40	* checking for the existence of something on those spaces, but
252	* don't expect to insert/remove anything from those spaces.	41	* don't expect to insert/remove anything from those spaces.
253	*/	42	*/
254	int	43	int
255	get_map_flags (maptile *oldmap, maptile **newmap, sint16 x, sint16 y, sint16 * nx, sint16 * ny)	44	get_map_flags (maptile *oldmap, maptile **newmap, sint16 x, sint16 y, sint16 *nx, sint16 *ny)
256	{	45	{
257	sint16 newx, newy;	46	sint16 newx = x;
258	int retval = 0;	47	sint16 newy = y;
259	maptile *mp;
260		48
261	if (out_of_map (oldmap, x, y))	49	maptile *mp = get_map_from_coord (oldmap, &newx, &newy);
		50
		51	if (!mp)
262	return P_OUT_OF_MAP;	52	return P_OUT_OF_MAP;
263	newx = x;
264	newy = y;
265	mp = get_map_from_coord (oldmap, &newx, &newy);
266	if (mp != oldmap)
267	retval |= P_NEW_MAP;
268	if (newmap)
269	*newmap = mp;
270	if (nx)
271	*nx = newx;
272	if (ny)
273	*ny = newy;
274		53
275	retval |= mp->spaces[newx + mp->width * newy].flags;	54	if (newmap) *newmap = mp;
		55	if (nx) *nx = newx;
		56	if (ny) *ny = newy;
276		57
277	return retval;	58	return mp->at (newx, newy).flags () | (mp != oldmap ? P_NEW_MAP : 0);
278	}	59	}
279		60
280	/*	61	/*
281	* Returns true if the given coordinate is blocked except by the	62	* Returns true if the given coordinate is blocked except by the
282	* object passed is not blocking. This is used with	63	* object passed is not blocking. This is used with
…		…
305	}	86	}
306		87
307	/* Save some cycles - instead of calling get_map_flags(), just get the value	88	/* Save some cycles - instead of calling get_map_flags(), just get the value
308	* directly.	89	* directly.
309	*/	90	*/
310	mflags = m->spaces[sx + m->width * sy].flags;	91	mflags = m->at (sx, sy).flags ();
311		92
312	blocked = GET_MAP_MOVE_BLOCK (m, sx, sy);	93	blocked = GET_MAP_MOVE_BLOCK (m, sx, sy);
313		94
314	/* If space is currently not blocked by anything, no need to	95	/* If space is currently not blocked by anything, no need to
315	* go further. Not true for players - all sorts of special	96	* go further. Not true for players - all sorts of special
…		…
326	* let the player through (inventory checkers for example)	107	* let the player through (inventory checkers for example)
327	*/	108	*/
328	if (!(mflags & P_IS_ALIVE) && !OB_TYPE_MOVE_BLOCK (ob, blocked))	109	if (!(mflags & P_IS_ALIVE) && !OB_TYPE_MOVE_BLOCK (ob, blocked))
329	return 0;	110	return 0;
330		111
331	if (ob->head != NULL)
332	ob = ob->head;	112	ob = ob->head_ ();
333		113
334	/* We basically go through the stack of objects, and if there is	114	/* We basically go through the stack of objects, and if there is
335	* some other object that has NO_PASS or FLAG_ALIVE set, return	115	* some other object that has NO_PASS or FLAG_ALIVE set, return
336	* true. If we get through the entire stack, that must mean	116	* true. If we get through the entire stack, that must mean
337	* ob is blocking it, so return 0.	117	* ob is blocking it, so return 0.
338	*/	118	*/
339	for (tmp = GET_MAP_OB (m, sx, sy); tmp != NULL; tmp = tmp->above)	119	for (tmp = GET_MAP_OB (m, sx, sy); tmp; tmp = tmp->above)
340	{	120	{
341		121
342	/* This must be before the checks below. Code for inventory checkers. */	122	/* This must be before the checks below. Code for inventory checkers. */
343	if (tmp->type == CHECK_INV && OB_MOVE_BLOCK (ob, tmp))	123	if (tmp->type == CHECK_INV && OB_MOVE_BLOCK (ob, tmp))
344	{	124	{
…		…
367	else	147	else
368	{	148	{
369	/* Broke apart a big nasty if into several here to make	149	/* Broke apart a big nasty if into several here to make
370	* this more readable. first check - if the space blocks	150	* this more readable. first check - if the space blocks
371	* movement, can't move here.	151	* movement, can't move here.
372	* second - if a monster, can't move there, unles it is a	152	* second - if a monster, can't move there, unless it is a
373	* hidden dm	153	* hidden dm
374	*/	154	*/
375	if (OB_MOVE_BLOCK (ob, tmp))	155	if (OB_MOVE_BLOCK (ob, tmp))
376	return 1;	156	return 1;
377	if (QUERY_FLAG (tmp, FLAG_ALIVE) && tmp->head != ob && tmp != ob &&	157
378	tmp->type != DOOR && !(QUERY_FLAG (tmp, FLAG_WIZ) && tmp->contr->hidden))	158	if (tmp->flag [FLAG_ALIVE]
		159	&& tmp->head_ () != ob
		160	&& tmp != ob
		161	&& tmp->type != DOOR
		162	&& !(tmp->flag [FLAG_WIZ] && tmp->contr->hidden))
379	return 1;	163	return 1;
380	}	164	}
381		165
382	}	166	}
383	return 0;	167	return 0;
384	}	168	}
385
386		169
387	/*	170	/*
388	* Returns true if the given object can't fit in the given spot.	171	* Returns true if the given object can't fit in the given spot.
389	* This is meant for multi space objects - for single space objecs,	172	* This is meant for multi space objects - for single space objecs,
390	* just calling get_map_blocked and checking that against movement type	173	* just calling get_map_blocked and checking that against movement type
…		…
408	*	191	*
409	* Note this used to be arch_blocked, but with new movement	192	* Note this used to be arch_blocked, but with new movement
410	* code, we need to have actual object to check its move_type	193	* code, we need to have actual object to check its move_type
411	* against the move_block values.	194	* against the move_block values.
412	*/	195	*/
413
414	int	196	int
415	ob_blocked (const object *ob, maptile *m, sint16 x, sint16 y)	197	ob_blocked (const object *ob, maptile *m, sint16 x, sint16 y)
416	{	198	{
417	archetype *tmp;	199	archetype *tmp;
418	int flag;	200	int flag;
419	maptile *m1;	201	maptile *m1;
420	sint16 sx, sy;	202	sint16 sx, sy;
421		203
422	if (ob == NULL)	204	if (!ob)
423	{	205	{
424	flag = get_map_flags (m, &m1, x, y, &sx, &sy);	206	flag = get_map_flags (m, &m1, x, y, &sx, &sy);
425	if (flag & P_OUT_OF_MAP)	207	if (flag & P_OUT_OF_MAP)
426	return P_OUT_OF_MAP;	208	return P_OUT_OF_MAP;
427		209
428	/* don't have object, so don't know what types would block */	210	/* don't have object, so don't know what types would block */
429	return (GET_MAP_MOVE_BLOCK (m1, sx, sy));	211	return m1->at (sx, sy).move_block;
430	}	212	}
431		213
432	for (tmp = ob->arch; tmp != NULL; tmp = tmp->more)	214	for (tmp = ob->arch; tmp; tmp = (archetype *)tmp->more)
433	{	215	{
434	flag = get_map_flags (m, &m1, x + tmp->clone.x, y + tmp->clone.y, &sx, &sy);	216	flag = get_map_flags (m, &m1, x + tmp->x, y + tmp->y, &sx, &sy);
435		217
436	if (flag & P_OUT_OF_MAP)	218	if (flag & P_OUT_OF_MAP)
437	return P_OUT_OF_MAP;	219	return P_OUT_OF_MAP;
438	if (flag & P_IS_ALIVE)	220	if (flag & P_IS_ALIVE)
439	return P_IS_ALIVE;	221	return P_IS_ALIVE;
440		222
		223	mapspace &ms = m1->at (sx, sy);
		224
441	/* find_first_free_spot() calls this function. However, often	225	/* find_first_free_spot() calls this function. However, often
442	* ob doesn't have any move type (when used to place exits)	226	* ob doesn't have any move type (when used to place exits)
443	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.	227	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.
444	*/	228	*/
445		229
446	if (ob->move_type == 0 && GET_MAP_MOVE_BLOCK (m1, sx, sy) != MOVE_ALL)	230	if (ob->move_type == 0 && ms.move_block != MOVE_ALL)
447	continue;	231	continue;
448		232
449	/* Note it is intentional that we check ob - the movement type of the	233	/* Note it is intentional that we check ob - the movement type of the
450	* head of the object should correspond for the entire object.	234	* head of the object should correspond for the entire object.
451	*/	235	*/
452	if (OB_TYPE_MOVE_BLOCK (ob, GET_MAP_MOVE_BLOCK (m1, sx, sy)))	236	if (OB_TYPE_MOVE_BLOCK (ob, ms.move_block))
453	return AB_NO_PASS;	237	return P_NO_PASS;
454
455	}	238	}
		239
456	return 0;	240	return 0;
457	}	241	}
458		242
459	/* When the map is loaded, load_object does not actually insert objects	243	/* When the map is loaded, load_object does not actually insert objects
460	* into inventory, but just links them. What this does is go through	244	* into inventory, but just links them. What this does is go through
461	* and insert them properly.	245	* and insert them properly.
462	* The object 'container' is the object that contains the inventory.	246	* The object 'container' is the object that contains the inventory.
463	* This is needed so that we can update the containers weight.	247	* This is needed so that we can update the containers weight.
464	*/	248	*/
465
466	void	249	void
467	fix_container (object *container)	250	fix_container (object *container)
468	{	251	{
469	object *tmp = container->inv, *next;	252	object *tmp = container->inv, *next;
470		253
471	container->inv = NULL;	254	container->inv = 0;
472	while (tmp != NULL)	255	while (tmp)
473	{	256	{
474	next = tmp->below;	257	next = tmp->below;
475	if (tmp->inv)	258	if (tmp->inv)
476	fix_container (tmp);	259	fix_container (tmp);
		260
477	(void) insert_ob_in_ob (tmp, container);	261	insert_ob_in_ob (tmp, container);
478	tmp = next;	262	tmp = next;
479	}	263	}
		264
480	/* sum_weight will go through and calculate what all the containers are	265	/* sum_weight will go through and calculate what all the containers are
481	* carrying.	266	* carrying.
482	*/	267	*/
483	sum_weight (container);	268	sum_weight (container);
484	}	269	}
485		270
		271	void
		272	maptile::set_object_flag (int flag, int value)
		273	{
		274	if (!spaces)
		275	return;
		276
		277	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		278	for (object *tmp = ms->bot; tmp; tmp = tmp->above)
		279	tmp->flag [flag] = value;
		280	}
		281
486	/* link_multipart_objects go through all the objects on the map looking	282	/* link_multipart_objects go through all the objects on the map looking
487	* for objects whose arch says they are multipart yet according to the	283	* for objects whose arch says they are multipart yet according to the
488	* info we have, they only have the head (as would be expected when	284	* info we have, they only have the head (as would be expected when
489	* they are saved). We do have to look for the old maps that did save	285	* they are saved).
490	* the more sections and not re-add sections for them.
491	*/	286	*/
492		287	void
493	static void	288	maptile::link_multipart_objects ()
494	link_multipart_objects (maptile *m)
495	{	289	{
496	int x, y;	290	if (!spaces)
497	object *tmp, *op, *last, *above;	291	return;
498	archetype *at;
499		292
500	for (x = 0; x < MAP_WIDTH (m); x++)	293	for (mapspace *ms = spaces + size (); ms-- > spaces; )
501	for (y = 0; y < MAP_HEIGHT (m); y++)	294	{
502	for (tmp = get_map_ob (m, x, y); tmp != NULL; tmp = above)	295	object *op = ms->bot;
		296	while (op)
503	{	297	{
504	above = tmp->above;
505
506	/* already multipart - don't do anything more */	298	/* already multipart - don't do anything more */
507	if (tmp->head || tmp->more)	299	if (op->head_ () == op && !op->more && op->arch->more)
508	continue;
509
510	/* If there is nothing more to this object, this for loop
511	* won't do anything.
512	*/
513	for (at = tmp->arch->more, last = tmp; at != NULL; at = at->more, last = op)
514	{	300	{
515	op = arch_to_object (at);	301	op->remove ();
		302	op->expand_tail ();
516		303
517	/* update x,y coordinates */	304	// FIXME: INS_ON_TOP is just a workaround for the pentagram vs.
518	op->x += tmp->x;	305	// multi-tile monster bug, where INS_ABOVE_FLOOR_ONLY put the monsters
519	op->y += tmp->y;	306	// below the pentagrams... hopefully INS_ON_TOP doesn't break anything
520	op->head = tmp;	307	insert (op, op->x, op->y, 0, INS_NO_MERGE | INS_ON_TOP | INS_NO_WALK_ON);
521	op->map = m;	308
522	last->more = op;	309	op = ms->bot; // we are mutating the mapspace too much with INS_ON_TOP
523	op->name = tmp->name;	310	// so we have to reset the iteration through the mapspace
524	op->title = tmp->title;
525	/* we could link all the parts onto tmp, and then just
526	* call insert_ob_in_map once, but the effect is the same,
527	* as insert_ob_in_map will call itself with each part, and
528	* the coding is simpler to just to it here with each part.
529	*/	311	}
530	insert_ob_in_map (op, op->map, tmp, INS_NO_MERGE | INS_ABOVE_FLOOR_ONLY | INS_NO_WALK_ON);	312	else
531	} /* for at = tmp->arch->more */	313	op = op->above;
532	} /* for objects on this space */	314	}
		315	}
533	}	316	}
534		317
535	/*	318	/*
536	* Loads (ands parses) the objects into a given map from the specified	319	* Loads (ands parses) the objects into a given map from the specified
537	* file pointer.	320	* file pointer.
538	* mapflags is the same as we get with load_original_map
539	*/	321	*/
		322	bool
		323	maptile::_load_objects (object_thawer &f)
		324	{
		325	for (;;)
		326	{
		327	coroapi::cede_to_tick_every (100); // cede once in a while
		328
		329	switch (f.kw)
		330	{
		331	case KW_arch:
		332	if (object *op = object::read (f, this))
		333	{
		334	if (op->inv)
		335	sum_weight (op);
		336
		337	insert_ob_in_map (op, this, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ON_TOP | INS_MAP_LOAD);
		338	}
		339
		340	continue;
		341
		342	case KW_EOF:
		343	return true;
		344
		345	default:
		346	if (!f.parse_error ("map file"))
		347	return false;
		348	break;
		349	}
		350
		351	f.next ();
		352	}
		353
		354	return true;
		355	}
		356
540	void	357	void
541	load_objects (maptile *m, object_thawer & fp, int mapflags)	358	maptile::activate ()
542	{	359	{
543	int i, j;	360	if (spaces)
544	int unique;	361	for (mapspace *ms = spaces + size (); ms-- > spaces; )
545	object *op, *prev = NULL, *last_more = NULL, *otmp;	362	for (object *op = ms->bot; op; op = op->above)
		363	op->activate_recursive ();
		364	}
546		365
547	op = get_object ();	366	void
548	op->map = m; /* To handle buttons correctly */	367	maptile::deactivate ()
		368	{
		369	if (spaces)
		370	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		371	for (object *op = ms->bot; op; op = op->above)
		372	op->deactivate_recursive ();
		373	}
549		374
550	while ((i = load_object (fp, op, mapflags)))	375	bool
		376	maptile::_save_objects (object_freezer &f, int flags)
		377	{
		378	coroapi::cede_to_tick ();
		379
		380	if (flags & IO_HEADER)
		381	_save_header (f);
		382
		383	if (!spaces)
		384	return false;
		385
		386	for (int i = 0; i < size (); ++i)
551	{	387	{
552	/* if the archetype for the object is null, means that we	388	bool unique = 0;
553	* got an invalid object. Don't do anything with it - the game	389
554	* or editor will not be able to do anything with it either.	390	for (object *op = spaces [i].bot; op; op = op->above)
555	*/
556	if (op->arch == NULL)
557	{	391	{
558	LOG (llevDebug, "Discarding object without arch: %s\n", op->name ? (const char *) op->name : "(null)");	392	unique |= op->flag [FLAG_UNIQUE] && op->flag [FLAG_IS_FLOOR];
		393
		394	if (expect_false (!op->can_map_save ()))
559	continue;	395	continue;
		396
		397	if (expect_false (unique || op->flag [FLAG_UNIQUE]))
		398	{
		399	if (flags & IO_UNIQUES)
		400	op->write (f);
		401	}
		402	else if (expect_true (flags & IO_OBJECTS))
		403	op->write (f);
560	}	404	}
561
562
563	switch (i)
564	{
565	case LL_NORMAL:
566	/* if we are loading an overlay, put the floors on the bottom */
567	if ((QUERY_FLAG (op, FLAG_IS_FLOOR) || QUERY_FLAG (op, FLAG_OVERLAY_FLOOR)) && mapflags & MAP_OVERLAY)
568	insert_ob_in_map (op, m, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ABOVE_FLOOR_ONLY | INS_MAP_LOAD);
569	else
570	insert_ob_in_map (op, m, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ON_TOP | INS_MAP_LOAD);
571
572	if (op->inv)
573	sum_weight (op);
574
575	prev = op, last_more = op;
576	break;
577
578	case LL_MORE:
579	insert_ob_in_map (op, m, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ABOVE_FLOOR_ONLY);
580	op->head = prev, last_more->more = op, last_more = op;
581	break;
582	}
583
584	if (mapflags & MAP_STYLE)
585	remove_from_active_list (op);
586
587	op = get_object ();
588	op->map = m;
589	}
590
591	for (i = 0; i < m->width; i++)
592	{	405	}
593	for (j = 0; j < m->height; j++)
594	{
595	unique = 0;
596	/* check for unique items, or unique squares */
597	for (otmp = get_map_ob (m, i, j); otmp; otmp = otmp->above)
598	{
599	if (QUERY_FLAG (otmp, FLAG_UNIQUE) || QUERY_FLAG (otmp, FLAG_OBJ_SAVE_ON_OVL))
600	unique = 1;
601	if (!(mapflags & (MAP_OVERLAY | MAP_PLAYER_UNIQUE) || unique))
602	SET_FLAG (otmp, FLAG_OBJ_ORIGINAL);
603	}
604	}
605	}
606		406
607	free_object (op);	407	coroapi::cede_to_tick ();
608	link_multipart_objects (m);
609	}
610		408
611	/* This saves all the objects on the map in a non destructive fashion.	409	return true;
612	* Modified by MSW 2001-07-01 to do in a single pass - reduces code,
613	* and we only save the head of multi part objects - this is needed
614	* in order to do map tiling properly.
615	*/
616	void
617	save_objects (maptile *m, object_freezer & fp, object_freezer & fp2, int flag)
618	{
619	int i, j = 0, unique = 0;
620	object *op;
621
622	/* first pass - save one-part objects */
623	for (i = 0; i < MAP_WIDTH (m); i++)
624	for (j = 0; j < MAP_HEIGHT (m); j++)
625	{
626	unique = 0;
627	for (op = get_map_ob (m, i, j); op; op = op->above)
628	{
629	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))
630	unique = 1;
631
632	if (op->type == PLAYER)
633	{
634	LOG (llevDebug, "Player on map that is being saved\n");
635	continue;
636	}
637
638	if (op->head || op->owner)
639	continue;
640
641	if (unique || QUERY_FLAG (op, FLAG_UNIQUE))
642	save_object (fp2, op, 3);
643	else if (flag == 0 || (flag == 2 && (!QUERY_FLAG (op, FLAG_OBJ_ORIGINAL) && !QUERY_FLAG (op, FLAG_UNPAID))))
644	save_object (fp, op, 3);
645
646	} /* for this space */
647	} /* for this j */
648	}	410	}
649		411
650	/*	412	bool
651	* Allocates, initialises, and returns a pointer to a maptile.	413	maptile::_save_objects (const char *path, int flags)
652	* Modified to no longer take a path option which was not being
653	* used anyways. MSW 2001-07-01
654	*/
655
656	maptile *
657	get_linked_map (void)
658	{	414	{
659	maptile *map = new maptile;	415	object_freezer freezer;
660	maptile *mp;
661		416
662	for (mp = first_map; mp != NULL && mp->next != NULL; mp = mp->next);	417	if (!_save_objects (freezer, flags))
663	if (mp == NULL)	418	return false;
664	first_map = map;
665	else
666	mp->next = map;
667		419
		420	return freezer.save (path);
		421	}
		422
		423	maptile::maptile ()
		424	{
668	map->in_memory = MAP_SWAPPED;	425	in_memory = MAP_SWAPPED;
		426
669	/* The maps used to pick up default x and y values from the	427	/* The maps used to pick up default x and y values from the
670	* map archetype. Mimic that behaviour.	428	* map archetype. Mimic that behaviour.
671	*/	429	*/
672	MAP_WIDTH (map) = 16;	430	width = 16;
673	MAP_HEIGHT (map) = 16;	431	height = 16;
674	MAP_RESET_TIMEOUT (map) = 0;	432	timeout = 300;
675	MAP_TIMEOUT (map) = 300;	433	max_nrof = 1000; // 1000 items of anything
676	MAP_ENTER_X (map) = 0;	434	max_volume = 2000000; // 2m³
677	MAP_ENTER_Y (map) = 0;	435	}
678	/*set part to -1 indicating conversion to weather map not yet done */	436
679	MAP_WORLDPARTX (map) = -1;	437	maptile::maptile (int w, int h)
680	MAP_WORLDPARTY (map) = -1;	438	{
681	return map;	439	in_memory = MAP_SWAPPED;
		440
		441	width = w;
		442	height = h;
		443	reset_timeout = 0;
		444	timeout = 300;
		445	enter_x = 0;
		446	enter_y = 0;
		447
		448	alloc ();
682	}	449	}
683		450
684	/*	451	/*
685	* Allocates the arrays contained in a maptile.	452	* Allocates the arrays contained in a maptile.
686	* This basically allocates the dynamic array of spaces for the	453	* This basically allocates the dynamic array of spaces for the
687	* map.	454	* map.
688	*/	455	*/
689
690	void	456	void
691	allocate_map (maptile *m)	457	maptile::alloc ()
692	{	458	{
693	m->in_memory = MAP_IN_MEMORY;
694	/* Log this condition and free the storage. We could I suppose
695	* realloc, but if the caller is presuming the data will be intact,
696	* that is their poor assumption.
697	*/
698	if (m->spaces)	459	if (spaces)
699	{
700	LOG (llevError, "allocate_map called with already allocated map (%s)\n", m->path);
701	free (m->spaces);
702	}
703
704	m->spaces = (MapSpace *) calloc (1, MAP_WIDTH (m) * MAP_HEIGHT (m) * sizeof (MapSpace));
705
706	if (m->spaces == NULL)
707	fatal (OUT_OF_MEMORY);
708	}
709
710	/* Create and returns a map of the specific size. Used
711	* in random map code and the editor.
712	*/
713	maptile *
714	get_empty_map (int sizex, int sizey)
715	{
716	maptile *m = get_linked_map ();
717
718	m->width = sizex;
719	m->height = sizey;
720	m->in_memory = MAP_SWAPPED;
721	allocate_map (m);
722	return m;	460	return;
		461
		462	spaces = salloc0<mapspace> (size ());
723	}	463	}
724		464
725	/* Takes a string from a map definition and outputs a pointer to the array of shopitems	465	/* Takes a string from a map definition and outputs a pointer to the array of shopitems
726	* corresponding to that string. Memory is allocated for this, it must be freed	466	* corresponding to that string. Memory is allocated for this, it must be freed
727	* at a later date.	467	* at a later date.
728	* Called by parse_map_headers below.	468	* Called by parse_map_headers below.
729	*/	469	*/
730
731	static shopitems *	470	static shopitems *
732	parse_shop_string (const char *input_string)	471	parse_shop_string (const char *input_string)
733	{	472	{
734	char *shop_string, *p, *q, *next_semicolon, *next_colon;	473	char *shop_string, *p, *q, *next_semicolon, *next_colon;
735	shopitems *items = NULL;	474	shopitems *items = NULL;
736	int i = 0, number_of_entries = 0;	475	int i = 0, number_of_entries = 0;
737	const typedata *current_type;	476	const typedata *current_type;
738		477
739	shop_string = strdup_local (input_string);	478	shop_string = strdup (input_string);
740	p = shop_string;	479	p = shop_string;
741	/* first we'll count the entries, we'll need that for allocating the array shortly */	480	/* first we'll count the entries, we'll need that for allocating the array shortly */
742	while (p)	481	while (p)
743	{	482	{
744	p = strchr (p, ';');	483	p = strchr (p, ';');
745	number_of_entries++;	484	number_of_entries++;
746	if (p)	485	if (p)
747	p++;	486	p++;
748	}	487	}
		488
749	p = shop_string;	489	p = shop_string;
750	strip_endline (p);	490	strip_endline (p);
751	items = new shopitems[number_of_entries + 1];	491	items = new shopitems[number_of_entries + 1];
752	for (i = 0; i < number_of_entries; i++)	492	for (i = 0; i < number_of_entries; i++)
753	{	493	{
754	if (!p)	494	if (!p)
755	{	495	{
756	LOG (llevError, "parse_shop_string: I seem to have run out of string, that shouldn't happen.\n");	496	LOG (llevError, "parse_shop_string: I seem to have run out of string, that shouldn't happen.\n");
757	break;	497	break;
758	}	498	}
		499
759	next_semicolon = strchr (p, ';');	500	next_semicolon = strchr (p, ';');
760	next_colon = strchr (p, ':');	501	next_colon = strchr (p, ':');
761	/* if there is a stregth specified, figure out what it is, we'll need it soon. */	502	/* if there is a stregth specified, figure out what it is, we'll need it soon. */
762	if (next_colon && (!next_semicolon || next_colon < next_semicolon))	503	if (next_colon && (!next_semicolon || next_colon < next_semicolon))
763	items[i].strength = atoi (strchr (p, ':') + 1);	504	items[i].strength = atoi (strchr (p, ':') + 1);
…		…
790	* the next entry while we're at it, better print a warning	531	* the next entry while we're at it, better print a warning
791	*/	532	*/
792	LOG (llevError, "invalid type %s defined in shopitems in string %s\n", p, input_string);	533	LOG (llevError, "invalid type %s defined in shopitems in string %s\n", p, input_string);
793	}	534	}
794	}	535	}
		536
795	items[i].index = number_of_entries;	537	items[i].index = number_of_entries;
796	if (next_semicolon)	538	if (next_semicolon)
797	p = ++next_semicolon;	539	p = ++next_semicolon;
798	else	540	else
799	p = NULL;	541	p = NULL;
800	}	542	}
		543
801	free (shop_string);	544	free (shop_string);
802	return items;	545	return items;
803	}	546	}
804		547
805	/* opposite of parse string, this puts the string that was originally fed in to	548	/* opposite of parse string, this puts the string that was originally fed in to
…		…
814	for (i = 0; i < m->shopitems[0].index; i++)	557	for (i = 0; i < m->shopitems[0].index; i++)
815	{	558	{
816	if (m->shopitems[i].typenum)	559	if (m->shopitems[i].typenum)
817	{	560	{
818	if (m->shopitems[i].strength)	561	if (m->shopitems[i].strength)
819	{
820	sprintf (tmp, "%s:%d;", m->shopitems[i].name, m->shopitems[i].strength);	562	sprintf (tmp, "%s:%d;", m->shopitems[i].name, m->shopitems[i].strength);
821	}
822	else	563	else
823	sprintf (tmp, "%s;", m->shopitems[i].name);	564	sprintf (tmp, "%s;", m->shopitems[i].name);
824	}	565	}
825	else	566	else
826	{	567	{
827	if (m->shopitems[i].strength)	568	if (m->shopitems[i].strength)
828	{
829	sprintf (tmp, "*:%d;", m->shopitems[i].strength);	569	sprintf (tmp, "*:%d;", m->shopitems[i].strength);
830	}
831	else	570	else
832	sprintf (tmp, "*");	571	sprintf (tmp, "*");
833	}	572	}
		573
834	strcat (output_string, tmp);	574	strcat (output_string, tmp);
835	}	575	}
836	}	576	}
837		577
838	/* This loads the header information of the map. The header	578	/* This loads the header information of the map. The header
…		…
843	* put all the stuff in the map object so that names actually make	583	* put all the stuff in the map object so that names actually make
844	* sense.	584	* sense.
845	* This could be done in lex (like the object loader), but I think	585	* This could be done in lex (like the object loader), but I think
846	* currently, there are few enough fields this is not a big deal.	586	* currently, there are few enough fields this is not a big deal.
847	* MSW 2001-07-01	587	* MSW 2001-07-01
848	* return 0 on success, 1 on failure.
849	*/	588	*/
850		589	bool
851	static int	590	maptile::_load_header (object_thawer &thawer)
852	load_map_header (object_thawer & fp, maptile *m)
853	{	591	{
854	char buf[HUGE_BUF], msgbuf[HUGE_BUF], maplorebuf[HUGE_BUF], *key = NULL, *value, *end;	592	for (;;)
855	int msgpos = 0;
856	int maplorepos = 0;
857
858	while (fgets (buf, HUGE_BUF - 1, fp) != NULL)
859	{	593	{
860	buf[HUGE_BUF - 1] = 0;	594	switch (thawer.kw)
861	key = buf;
862	while (isspace (*key))
863	key++;
864	if (*key == 0)
865	continue; /* empty line */
866	value = strchr (key, ' ');
867	if (!value)
868	{	595	{
869	end = strchr (key, '\n');	596	case KW_msg:
870	if (end != NULL)	597	thawer.get_ml (KW_endmsg, msg);
871	{	598	break;
872	*end = 0;	599
		600	case KW_lore: // CF+ extension
		601	thawer.get_ml (KW_endlore, maplore);
873	}	602	break;
		603
		604	case KW_maplore:
		605	thawer.get_ml (KW_endmaplore, maplore);
		606	break;
		607
		608	case KW_arch:
		609	if (strcmp (thawer.get_str (), "map"))
		610	LOG (llevError, "%s: loading map and got a non 'arch map' line (arch %s), skipping.\n", &path, thawer.get_str ());
		611	break;
		612
		613	case KW_oid:
		614	thawer.get (this, thawer.get_sint32 ());
		615	break;
		616
		617	case KW_file_format_version: break; // nop
		618
		619	case KW_name: thawer.get (name); break;
		620	case KW_attach: thawer.get (attach); break;
		621	case KW_reset_time: thawer.get (reset_time); break;
		622	case KW_shopgreed: thawer.get (shopgreed); break;
		623	case KW_shopmin: thawer.get (shopmin); break;
		624	case KW_shopmax: thawer.get (shopmax); break;
		625	case KW_shoprace: thawer.get (shoprace); break;
		626	case KW_outdoor: thawer.get (outdoor); break;
		627	case KW_temp: thawer.get (temp); break;
		628	case KW_pressure: thawer.get (pressure); break;
		629	case KW_humid: thawer.get (humid); break;
		630	case KW_windspeed: thawer.get (windspeed); break;
		631	case KW_winddir: thawer.get (winddir); break;
		632	case KW_sky: thawer.get (sky); break;
		633
		634	case KW_per_player: thawer.get (per_player); break;
		635	case KW_per_party: thawer.get (per_party); break;
		636	case KW_no_reset: thawer.get (no_reset); break;
		637
		638	case KW_region: default_region = region::find (thawer.get_str ()); break;
		639	case KW_shopitems: shopitems = parse_shop_string (thawer.get_str ()); break;
		640
		641	// old names new names
		642	case KW_hp: case KW_enter_x: thawer.get (enter_x); break;
		643	case KW_sp: case KW_enter_y: thawer.get (enter_y); break;
		644	case KW_x: case KW_width: thawer.get (width); break;
		645	case KW_y: case KW_height: thawer.get (height); break;
		646	case KW_weight: case KW_reset_timeout: thawer.get (reset_timeout); break;
		647	case KW_value: case KW_swap_time: thawer.get (timeout); break;
		648	case KW_level: case KW_difficulty: thawer.get (difficulty); difficulty = clamp (difficulty, 1, settings.max_level); break;
		649	case KW_invisible: case KW_darkness: thawer.get (darkness); break;
		650	case KW_stand_still: case KW_fixed_resettime: thawer.get (fixed_resettime); break;
		651
		652	case KW_tile_path_1: thawer.get (tile_path [0]); break;
		653	case KW_tile_path_2: thawer.get (tile_path [1]); break;
		654	case KW_tile_path_3: thawer.get (tile_path [2]); break;
		655	case KW_tile_path_4: thawer.get (tile_path [3]); break;
		656
		657	case KW_ERROR:
		658	set_key_text (thawer.kw_str, thawer.value);
		659	break;
		660
		661	case KW_end:
		662	thawer.next ();
		663	return true;
		664
		665	default:
		666	if (!thawer.parse_error ("map", 0))
		667	return false;
		668	break;
874	}	669	}
875	else
876	{
877	*value = 0;
878	value++;
879	end = strchr (value, '\n');
880	while (isspace (*value))
881	{
882	value++;
883	if (*value == '\0' || value == end)
884	{
885	/* Nothing but spaces. */
886	value = NULL;
887	break;
888	}
889	}
890	}
891		670
892	if (!end)	671	thawer.next ();
893	{
894	LOG (llevError, "Error loading map header - did not find a newline - perhaps file is truncated? Buf=%s\n", buf);
895	return 1;
896	}
897
898	/* key is the field name, value is what it should be set
899	* to. We've already done the work to null terminate key,
900	* and strip off any leading spaces for both of these.
901	* We have not touched the newline at the end of the line -
902	* these are needed for some values. the end pointer
903	* points to the first of the newlines.
904	* value could be NULL! It would be easy enough to just point
905	* this to "" to prevent cores, but that would let more errors slide
906	* through.
907	*
908	* First check for entries that do not use the value parameter, then
909	* validate that value is given and check for the remaining entries
910	* that use the parameter.
911	*/
912
913	if (!strcmp (key, "msg"))
914	{
915	while (fgets (buf, HUGE_BUF - 1, fp) != NULL)
916	{
917	if (!strcmp (buf, "endmsg\n"))
918	break;
919	else
920	{
921	/* slightly more efficient than strcat */
922	strcpy (msgbuf + msgpos, buf);
923	msgpos += strlen (buf);
924	}
925	}
926	/* There are lots of maps that have empty messages (eg, msg/endmsg
927	* with nothing between). There is no reason in those cases to
928	* keep the empty message. Also, msgbuf contains garbage data
929	* when msgpos is zero, so copying it results in crashes
930	*/
931	if (msgpos != 0)
932	m->msg = strdup_local (msgbuf);
933	}
934	else if (!strcmp (key, "maplore"))
935	{
936	while (fgets (buf, HUGE_BUF - 1, fp) != NULL)
937	{
938	if (!strcmp (buf, "endmaplore\n"))
939	break;
940	else
941	{
942	/* slightly more efficient than strcat */
943	strcpy (maplorebuf + maplorepos, buf);
944	maplorepos += strlen (buf);
945	}
946	}
947	if (maplorepos != 0)
948	m->maplore = strdup_local (maplorebuf);
949	}
950	else if (!strcmp (key, "end"))
951	{
952	break;
953	}
954	else if (value == NULL)
955	{
956	LOG (llevError, "Got '%s' line without parameter in map header\n", key);
957	}
958	else if (!strcmp (key, "arch"))
959	{
960	/* This is an oddity, but not something we care about much. */
961	if (strcmp (value, "map\n"))
962	LOG (llevError, "loading map and got a non 'arch map' line(%s %s)?\n", key, value);
963	}
964	else if (!strcmp (key, "name"))
965	{
966	*end = 0;
967	m->name = strdup_local (value);
968	}
969	/* first strcmp value on these are old names supported
970	* for compatibility reasons. The new values (second) are
971	* what really should be used.
972	*/
973	else if (!strcmp (key, "oid"))
974	{
975	fp.get (m, atoi (value));
976	}
977	else if (!strcmp (key, "attach"))
978	{
979	m->attach = value;
980	}
981	else if (!strcmp (key, "hp") || !strcmp (key, "enter_x"))
982	{
983	m->enter_x = atoi (value);
984	}
985	else if (!strcmp (key, "sp") || !strcmp (key, "enter_y"))
986	{
987	m->enter_y = atoi (value);
988	}
989	else if (!strcmp (key, "x") || !strcmp (key, "width"))
990	{
991	m->width = atoi (value);
992	}
993	else if (!strcmp (key, "y") || !strcmp (key, "height"))
994	{
995	m->height = atoi (value);
996	}
997	else if (!strcmp (key, "weight") || !strcmp (key, "reset_timeout"))
998	{
999	m->reset_timeout = atoi (value);
1000	}
1001	else if (!strcmp (key, "value") || !strcmp (key, "swap_time"))
1002	{
1003	m->timeout = atoi (value);
1004	}
1005	else if (!strcmp (key, "level") || !strcmp (key, "difficulty"))
1006	{
1007	m->difficulty = atoi (value);
1008	}
1009	else if (!strcmp (key, "invisible") || !strcmp (key, "darkness"))
1010	{
1011	m->darkness = atoi (value);
1012	}
1013	else if (!strcmp (key, "stand_still") || !strcmp (key, "fixed_resettime"))
1014	{
1015	m->fixed_resettime = atoi (value);
1016	}
1017	else if (!strcmp (key, "unique"))
1018	{
1019	m->unique = atoi (value);
1020	}
1021	else if (!strcmp (key, "template"))
1022	{
1023	m->templatemap = atoi (value);
1024	}
1025	else if (!strcmp (key, "region"))
1026	{
1027	m->region = get_region_by_name (value);
1028	}
1029	else if (!strcmp (key, "shopitems"))
1030	{
1031	*end = 0;
1032	m->shopitems = parse_shop_string (value);
1033	}
1034	else if (!strcmp (key, "shopgreed"))
1035	{
1036	m->shopgreed = atof (value);
1037	}
1038	else if (!strcmp (key, "shopmin"))
1039	{
1040	m->shopmin = atol (value);
1041	}
1042	else if (!strcmp (key, "shopmax"))
1043	{
1044	m->shopmax = atol (value);
1045	}
1046	else if (!strcmp (key, "shoprace"))
1047	{
1048	*end = 0;
1049	m->shoprace = strdup_local (value);
1050	}
1051	else if (!strcmp (key, "outdoor"))
1052	{
1053	m->outdoor = atoi (value);
1054	}
1055	else if (!strcmp (key, "temp"))
1056	{
1057	m->temp = atoi (value);
1058	}
1059	else if (!strcmp (key, "pressure"))
1060	{
1061	m->pressure = atoi (value);
1062	}
1063	else if (!strcmp (key, "humid"))
1064	{
1065	m->humid = atoi (value);
1066	}
1067	else if (!strcmp (key, "windspeed"))
1068	{
1069	m->windspeed = atoi (value);
1070	}
1071	else if (!strcmp (key, "winddir"))
1072	{
1073	m->winddir = atoi (value);
1074	}
1075	else if (!strcmp (key, "sky"))
1076	{
1077	m->sky = atoi (value);
1078	}
1079	else if (!strcmp (key, "nosmooth"))
1080	{
1081	m->nosmooth = atoi (value);
1082	}
1083	else if (!strncmp (key, "tile_path_", 10))
1084	{
1085	int tile = atoi (key + 10);
1086
1087	if (tile < 1 || tile > 4)
1088	{
1089	LOG (llevError, "load_map_header: tile location %d out of bounds (%s)\n", tile, m->path);
1090	}
1091	else
1092	{
1093	char *path;
1094
1095	*end = 0;
1096
1097	if (m->tile_path[tile - 1])
1098	{
1099	LOG (llevError, "load_map_header: tile location %d duplicated (%s)\n", tile, m->path);
1100	free (m->tile_path[tile - 1]);
1101	m->tile_path[tile - 1] = NULL;
1102	}
1103
1104	if (check_path (value, 1) != -1)
1105	{
1106	/* The unadorned path works. */
1107	path = value;
1108	}
1109	else
1110	{
1111	/* Try again; it could be a relative exit. */
1112
1113	path = path_combine_and_normalize (m->path, value);
1114
1115	if (check_path (path, 1) == -1)
1116	{
1117	LOG (llevError, "get_map_header: Bad tile path %s %s\n", m->path, value);
1118	path = NULL;
1119	}
1120	}
1121
1122	if (editor)
1123	{
1124	/* Use the value as in the file. */
1125	m->tile_path[tile - 1] = strdup_local (value);
1126	}
1127	else if (path != NULL)
1128	{
1129	/* Use the normalized value. */
1130	m->tile_path[tile - 1] = strdup_local (path);
1131	}
1132	} /* end if tile direction (in)valid */
1133	}
1134	else
1135	{
1136	LOG (llevError, "Got unknown value in map header: %s %s\n", key, value);
1137	}
1138	}
1139	if (!key || strcmp (key, "end"))
1140	{	672	}
1141	LOG (llevError, "Got premature eof on map header!\n");
1142	return 1;
1143	}
1144	return 0;
1145	}
1146		673
1147	/*	674	abort ();
1148	* Opens the file "filename" and reads information about the map
1149	* from the given file, and stores it in a newly allocated
1150	* maptile. A pointer to this structure is returned, or NULL on failure.
1151	* flags correspond to those in map.h. Main ones used are
1152	* MAP_PLAYER_UNIQUE, in which case we don't do any name changes, and
1153	* MAP_BLOCK, in which case we block on this load. This happens in all
1154	* cases, no matter if this flag is set or not.
1155	* MAP_STYLE: style map - don't add active objects, don't add to server
1156	* managed map list.
1157	*/
1158
1159	maptile *
1160	load_original_map (const char *filename, int flags)
1161	{
1162	maptile *m;
1163	char pathname[MAX_BUF];
1164
1165	if (flags & MAP_PLAYER_UNIQUE)
1166	strcpy (pathname, filename);
1167	else if (flags & MAP_OVERLAY)
1168	strcpy (pathname, create_overlay_pathname (filename));
1169	else
1170	strcpy (pathname, create_pathname (filename));
1171
1172	LOG (llevDebug, "load_original_map(%x): %s (%s)\n", flags, filename, pathname);
1173
1174	object_thawer thawer (pathname);
1175
1176	if (!thawer)
1177	return 0;
1178
1179	m = get_linked_map ();
1180
1181	strcpy (m->path, filename);
1182	if (load_map_header (thawer, m))
1183	{
1184	LOG (llevError, "Error loading map header for %s, flags=%d\n", filename, flags);
1185	delete_map (m);
1186	return NULL;
1187	}
1188
1189	allocate_map (m);
1190
1191	m->in_memory = MAP_LOADING;
1192	load_objects (m, thawer, flags & (MAP_BLOCK | MAP_STYLE));
1193
1194	m->in_memory = MAP_IN_MEMORY;
1195	if (!MAP_DIFFICULTY (m))
1196	MAP_DIFFICULTY (m) = calculate_difficulty (m);
1197	set_map_reset_time (m);
1198	m->instantiate ();
1199	return (m);
1200	}
1201
1202	/*
1203	* Loads a map, which has been loaded earlier, from file.
1204	* Return the map object we load into (this can change from the passed
1205	* option if we can't find the original map)
1206	*/
1207
1208	static maptile *
1209	load_temporary_map (maptile *m)
1210	{
1211	char buf[MAX_BUF];
1212
1213	if (!m->tmpname)
1214	{
1215	LOG (llevError, "No temporary filename for map %s\n", m->path);
1216	strcpy (buf, m->path);
1217	delete_map (m);
1218	m = load_original_map (buf, 0);
1219	if (m == NULL)
1220	return NULL;
1221	fix_auto_apply (m); /* Chests which open as default */
1222	return m;
1223	}
1224
1225	object_thawer thawer (m->tmpname);
1226
1227	if (!thawer)
1228	{
1229	strcpy (buf, m->path);
1230	delete_map (m);
1231	m = load_original_map (buf, 0);
1232	if (!m)
1233	return NULL;
1234	fix_auto_apply (m); /* Chests which open as default */
1235	return m;
1236	}
1237
1238	if (load_map_header (thawer, m))
1239	{
1240	LOG (llevError, "Error loading map header for %s (%s)\n", m->path, m->tmpname);
1241	delete_map (m);
1242	m = load_original_map (m->path, 0);
1243	return NULL;
1244	}
1245	allocate_map (m);
1246
1247	m->in_memory = MAP_LOADING;
1248	load_objects (m, thawer, 0);
1249
1250	m->in_memory = MAP_IN_MEMORY;
1251	INVOKE_MAP (SWAPIN, m);
1252	return m;
1253	}
1254
1255	/*
1256	* Loads a map, which has been loaded earlier, from file.
1257	* Return the map object we load into (this can change from the passed
1258	* option if we can't find the original map)
1259	*/
1260
1261	maptile *
1262	load_overlay_map (const char *filename, maptile *m)
1263	{
1264	char pathname[MAX_BUF];
1265
1266	strcpy (pathname, create_overlay_pathname (filename));
1267
1268	object_thawer thawer (pathname);
1269
1270	if (!thawer)
1271	return m;
1272
1273	if (load_map_header (thawer, m))
1274	{
1275	LOG (llevError, "Error loading map header for overlay %s (%s)\n", m->path, pathname);
1276	delete_map (m);
1277	m = load_original_map (m->path, 0);
1278	return NULL;
1279	}
1280	/*allocate_map(m); */
1281
1282	m->in_memory = MAP_LOADING;
1283	load_objects (m, thawer, MAP_OVERLAY);
1284
1285	m->in_memory = MAP_IN_MEMORY;
1286	return m;
1287	}	675	}
1288		676
1289	/******************************************************************************	677	/******************************************************************************
1290	* This is the start of unique map handling code	678	* This is the start of unique map handling code
1291	*****************************************************************************/	679	*****************************************************************************/
1292		680
1293	/* This goes through map 'm' and removed any unique items on the map. */	681	/* This goes through the maptile and removed any unique items on the map. */
1294	static void	682	void
1295	delete_unique_items (maptile *m)	683	maptile::clear_unique_items ()
1296	{	684	{
1297	int i, j, unique;	685	for (int i = 0; i < size (); ++i)
1298	object *op, *next;	686	{
		687	int unique = 0;
		688	for (object *op = spaces [i].bot; op; )
		689	{
		690	object *above = op->above;
1299		691
1300	for (i = 0; i < MAP_WIDTH (m); i++)	692	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))
1301	for (j = 0; j < MAP_HEIGHT (m); j++)	693	unique = 1;
		694
		695	if (op->head_ () == op && (QUERY_FLAG (op, FLAG_UNIQUE) || unique))
		696	{
		697	op->destroy_inv (false);
		698	op->destroy ();
		699	}
		700
		701	op = above;
		702	}
		703	}
		704	}
		705
		706	bool
		707	maptile::_save_header (object_freezer &freezer)
		708	{
		709	#define MAP_OUT(k) freezer.put (KW_ ## k, k)
		710	#define MAP_OUT2(k,v) freezer.put (KW_ ## k, v)
		711
		712	MAP_OUT2 (arch, "map");
		713
		714	if (name) MAP_OUT (name);
		715	MAP_OUT (swap_time);
		716	MAP_OUT (reset_time);
		717	MAP_OUT (reset_timeout);
		718	MAP_OUT (fixed_resettime);
		719	MAP_OUT (no_reset);
		720	MAP_OUT (difficulty);
		721
		722	if (default_region) MAP_OUT2 (region, default_region->name);
		723
		724	if (shopitems)
		725	{
		726	char shop[MAX_BUF];
		727	print_shop_string (this, shop);
		728	MAP_OUT2 (shopitems, shop);
		729	}
		730
		731	MAP_OUT (shopgreed);
		732	MAP_OUT (shopmin);
		733	MAP_OUT (shopmax);
		734	if (shoprace) MAP_OUT (shoprace);
		735	MAP_OUT (darkness);
		736	MAP_OUT (width);
		737	MAP_OUT (height);
		738	MAP_OUT (enter_x);
		739	MAP_OUT (enter_y);
		740
		741	if (msg) freezer.put (KW_msg , KW_endmsg , msg);
		742	if (maplore) freezer.put (KW_maplore, KW_endmaplore, maplore);
		743
		744	MAP_OUT (outdoor);
		745	MAP_OUT (temp);
		746	MAP_OUT (pressure);
		747	MAP_OUT (humid);
		748	MAP_OUT (windspeed);
		749	MAP_OUT (winddir);
		750	MAP_OUT (sky);
		751
		752	MAP_OUT (per_player);
		753	MAP_OUT (per_party);
		754
		755	if (tile_path [0]) MAP_OUT2 (tile_path_1, tile_path [0]);
		756	if (tile_path [1]) MAP_OUT2 (tile_path_2, tile_path [1]);
		757	if (tile_path [2]) MAP_OUT2 (tile_path_3, tile_path [2]);
		758	if (tile_path [3]) MAP_OUT2 (tile_path_4, tile_path [3]);
		759
		760	freezer.put (this);
		761	freezer.put (KW_end);
		762
		763	return true;
		764	}
		765
		766	bool
		767	maptile::_save_header (const char *path)
		768	{
		769	object_freezer freezer;
		770
		771	if (!_save_header (freezer))
		772	return false;
		773
		774	return freezer.save (path);
		775	}
		776
		777	/*
		778	* Remove and free all objects in the given map.
		779	*/
		780	void
		781	maptile::clear ()
		782	{
		783	sfree (regions, size ()); regions = 0;
		784	delete [] regionmap; regionmap = 0;
		785
		786	if (spaces)
		787	{
		788	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		789	while (object *op = ms->bot)
		790	{
		791	op = op->head_ ();
		792	op->destroy_inv (false);
		793	op->destroy ();
		794	}
		795
		796	sfree (spaces, size ()), spaces = 0;
		797	}
		798
		799	if (buttons)
		800	free_objectlinkpt (buttons), buttons = 0;
		801	}
		802
		803	void
		804	maptile::clear_header ()
		805	{
		806	name = 0;
		807	msg = 0;
		808	maplore = 0;
		809	shoprace = 0;
		810	delete [] shopitems, shopitems = 0;
		811
		812	for (int i = 0; i < 4; i++)
		813	tile_path [i] = 0;
		814	}
		815
		816	maptile::~maptile ()
		817	{
		818	assert (destroyed ());
		819	}
		820
		821	void
		822	maptile::clear_links_to (maptile *m)
		823	{
		824	/* We need to look through all the maps and see if any maps
		825	* are pointing at this one for tiling information. Since
		826	* tiling can be asymetric, we just can not look to see which
		827	* maps this map tiles with and clears those.
		828	*/
		829	for (int i = 0; i < 4; i++)
		830	if (tile_map[i] == m)
		831	tile_map[i] = 0;
		832	}
		833
		834	void
		835	maptile::do_destroy ()
		836	{
		837	attachable::do_destroy ();
		838
		839	clear ();
		840	}
		841
		842	/* decay and destroy perishable items in a map */
		843	void
		844	maptile::do_decay_objects ()
		845	{
		846	if (!spaces)
		847	return;
		848
		849	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		850	for (object *above, *op = ms->bot; op; op = above)
1302	{	851	{
1303	unique = 0;	852	above = op->above;
1304	for (op = get_map_ob (m, i, j); op; op = next)	853
		854	bool destroy = 0;
		855
		856	// do not decay anything above unique floor tiles (yet :)
		857	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))
		858	break;
		859
		860	if (QUERY_FLAG (op, FLAG_IS_FLOOR)
		861	|| QUERY_FLAG (op, FLAG_OBJ_ORIGINAL)
		862	|| QUERY_FLAG (op, FLAG_UNIQUE)
		863	|| QUERY_FLAG (op, FLAG_OVERLAY_FLOOR)
		864	|| QUERY_FLAG (op, FLAG_UNPAID)
		865	|| op->is_alive ())
		866	; // do not decay
		867	else if (op->is_weapon ())
1305	{	868	{
1306	next = op->above;	869	op->stats.dam--;
1307	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))	870	if (op->stats.dam < 0)
1308	unique = 1;	871	destroy = 1;
1309	if (op->head == NULL && (QUERY_FLAG (op, FLAG_UNIQUE) || unique))
1310	{
1311	clean_object (op);
1312	if (QUERY_FLAG (op, FLAG_IS_LINKED))
1313	remove_button_link (op);
1314	remove_ob (op);
1315	free_object (op);
1316	}	872	}
		873	else if (op->is_armor ())
		874	{
		875	op->stats.ac--;
		876	if (op->stats.ac < 0)
		877	destroy = 1;
		878	}
		879	else if (op->type == FOOD)
		880	{
		881	op->stats.food -= rndm (5, 20);
		882	if (op->stats.food < 0)
		883	destroy = 1;
		884	}
		885	else
		886	{
		887	int mat = op->materials;
		888
		889	if (mat & M_PAPER
		890	|| mat & M_LEATHER
		891	|| mat & M_WOOD
		892	|| mat & M_ORGANIC
		893	|| mat & M_CLOTH
		894	|| mat & M_LIQUID
		895	|| (mat & M_IRON && rndm (1, 5) == 1)
		896	|| (mat & M_GLASS && rndm (1, 2) == 1)
		897	|| ((mat & M_STONE || mat & M_ADAMANT) && rndm (1, 10) == 1)
		898	|| ((mat & M_SOFT_METAL || mat & M_BONE) && rndm (1, 3) == 1)
		899	|| (mat & M_ICE && temp > 32))
		900	destroy = 1;
		901	}
		902
		903	/* adjust overall chance below */
		904	if (destroy && rndm (0, 1))
		905	op->destroy ();
		906	}
		907	}
		908
		909	/*
		910	* Updates every button on the map (by calling update_button() for them).
		911	*/
		912	void
		913	maptile::update_buttons ()
		914	{
		915	for (oblinkpt *obp = buttons; obp; obp = obp->next)
		916	for (objectlink *ol = obp->link; ol; ol = ol->next)
		917	{
		918	if (!ol->ob)
		919	{
		920	LOG (llevError, "Internal error in update_button (%s (%dx%d), connected %ld).\n",
		921	ol->ob ? (const char *) ol->ob->name : "null", ol->ob ? ol->ob->x : -1, ol->ob ? ol->ob->y : -1, obp->value);
		922	continue;
		923	}
		924
		925	if (ol->ob->type == BUTTON || ol->ob->type == PEDESTAL)
		926	{
		927	update_button (ol->ob);
		928	break;
1317	}	929	}
1318	}	930	}
1319	}	931	}
1320
1321
1322	/*
1323	* Loads unique objects from file(s) into the map which is in memory
1324	* m is the map to load unique items into.
1325	*/
1326	static void
1327	load_unique_objects (maptile *m)
1328	{
1329	int count;
1330	char firstname[MAX_BUF];
1331
1332	for (count = 0; count < 10; count++)
1333	{
1334	sprintf (firstname, "%s.v%02d", create_items_path (m->path), count);
1335	if (!access (firstname, R_OK))
1336	break;
1337	}
1338	/* If we get here, we did not find any map */
1339	if (count == 10)
1340	return;
1341
1342	object_thawer thawer (firstname);
1343
1344	if (!thawer)
1345	return;
1346
1347	m->in_memory = MAP_LOADING;
1348	if (m->tmpname == NULL) /* if we have loaded unique items from */
1349	delete_unique_items (m); /* original map before, don't duplicate them */
1350	load_objects (m, thawer, 0);
1351
1352	m->in_memory = MAP_IN_MEMORY;
1353	}
1354
1355
1356	/*
1357	* Saves a map to file. If flag is set, it is saved into the same
1358	* file it was (originally) loaded from. Otherwise a temporary
1359	* filename will be genarated, and the file will be stored there.
1360	* The temporary filename will be stored in the maptileure.
1361	* If the map is unique, we also save to the filename in the map
1362	* (this should have been updated when first loaded)
1363	*/
1364
1365	int
1366	new_save_map (maptile *m, int flag)
1367	{
1368	char filename[MAX_BUF], buf[MAX_BUF], shop[MAX_BUF];
1369	int i;
1370
1371	if (flag && !*m->path)
1372	{
1373	LOG (llevError, "Tried to save map without path.\n");
1374	return -1;
1375	}
1376
1377	if (flag || (m->unique) || (m->templatemap))
1378	{
1379	if (!m->unique && !m->templatemap)
1380	{ /* flag is set */
1381	if (flag == 2)
1382	strcpy (filename, create_overlay_pathname (m->path));
1383	else
1384	strcpy (filename, create_pathname (m->path));
1385	}
1386	else
1387	strcpy (filename, m->path);
1388
1389	make_path_to_file (filename);
1390	}
1391	else
1392	{
1393	if (!m->tmpname)
1394	m->tmpname = tempnam_local (settings.tmpdir, NULL);
1395
1396	strcpy (filename, m->tmpname);
1397	}
1398
1399	LOG (llevDebug, "Saving map %s to %s\n", m->path, filename);
1400	m->in_memory = MAP_SAVING;
1401
1402	object_freezer freezer;
1403
1404	/* legacy */
1405	fprintf (freezer, "arch map\n");
1406	if (m->name)
1407	fprintf (freezer, "name %s\n", m->name);
1408	if (!flag)
1409	fprintf (freezer, "swap_time %d\n", m->swap_time);
1410	if (m->reset_timeout)
1411	fprintf (freezer, "reset_timeout %d\n", m->reset_timeout);
1412	if (m->fixed_resettime)
1413	fprintf (freezer, "fixed_resettime %d\n", m->fixed_resettime);
1414	/* we unfortunately have no idea if this is a value the creator set
1415	* or a difficulty value we generated when the map was first loaded
1416	*/
1417	if (m->difficulty)
1418	fprintf (freezer, "difficulty %d\n", m->difficulty);
1419	if (m->region)
1420	fprintf (freezer, "region %s\n", m->region->name);
1421	if (m->shopitems)
1422	{
1423	print_shop_string (m, shop);
1424	fprintf (freezer, "shopitems %s\n", shop);
1425	}
1426	if (m->shopgreed)
1427	fprintf (freezer, "shopgreed %f\n", m->shopgreed);
1428	#ifndef WIN32
1429	if (m->shopmin)
1430	fprintf (freezer, "shopmin %llu\n", m->shopmin);
1431	if (m->shopmax)
1432	fprintf (freezer, "shopmax %llu\n", m->shopmax);
1433	#else
1434	if (m->shopmin)
1435	fprintf (freezer, "shopmin %I64u\n", m->shopmin);
1436	if (m->shopmax)
1437	fprintf (freezer, "shopmax %I64u\n", m->shopmax);
1438	#endif
1439	if (m->shoprace)
1440	fprintf (freezer, "shoprace %s\n", m->shoprace);
1441	if (m->darkness)
1442	fprintf (freezer, "darkness %d\n", m->darkness);
1443	if (m->width)
1444	fprintf (freezer, "width %d\n", m->width);
1445	if (m->height)
1446	fprintf (freezer, "height %d\n", m->height);
1447	if (m->enter_x)
1448	fprintf (freezer, "enter_x %d\n", m->enter_x);
1449	if (m->enter_y)
1450	fprintf (freezer, "enter_y %d\n", m->enter_y);
1451	if (m->msg)
1452	fprintf (freezer, "msg\n%sendmsg\n", m->msg);
1453	if (m->maplore)
1454	fprintf (freezer, "maplore\n%sendmaplore\n", m->maplore);
1455	if (m->unique)
1456	fprintf (freezer, "unique %d\n", m->unique);
1457	if (m->templatemap)
1458	fprintf (freezer, "template %d\n", m->templatemap);
1459	if (m->outdoor)
1460	fprintf (freezer, "outdoor %d\n", m->outdoor);
1461	if (m->temp)
1462	fprintf (freezer, "temp %d\n", m->temp);
1463	if (m->pressure)
1464	fprintf (freezer, "pressure %d\n", m->pressure);
1465	if (m->humid)
1466	fprintf (freezer, "humid %d\n", m->humid);
1467	if (m->windspeed)
1468	fprintf (freezer, "windspeed %d\n", m->windspeed);
1469	if (m->winddir)
1470	fprintf (freezer, "winddir %d\n", m->winddir);
1471	if (m->sky)
1472	fprintf (freezer, "sky %d\n", m->sky);
1473	if (m->nosmooth)
1474	fprintf (freezer, "nosmooth %d\n", m->nosmooth);
1475
1476	/* Save any tiling information, except on overlays */
1477	if (flag != 2)
1478	for (i = 0; i < 4; i++)
1479	if (m->tile_path[i])
1480	fprintf (freezer, "tile_path_%d %s\n", i + 1, m->tile_path[i]);
1481
1482	freezer.put (m);
1483	fprintf (freezer, "end\n");
1484
1485	/* In the game save unique items in the different file, but
1486	* in the editor save them to the normal map file.
1487	* If unique map, save files in the proper destination (set by
1488	* player)
1489	*/
1490	if ((flag == 0 || flag == 2) && !m->unique && !m->templatemap)
1491	{
1492	object_freezer unique;
1493
1494	if (flag == 2)
1495	save_objects (m, freezer, unique, 2);
1496	else
1497	save_objects (m, freezer, unique, 0);
1498
1499	sprintf (buf, "%s.v00", create_items_path (m->path));
1500
1501	unique.save (buf);
1502	}
1503	else
1504	{ /* save same file when not playing, like in editor */
1505	save_objects (m, freezer, freezer, 0);
1506	}
1507
1508	freezer.save (filename);
1509
1510	return 0;
1511	}
1512
1513
1514	/*
1515	* Remove and free all objects in the inventory of the given object.
1516	* object.c ?
1517	*/
1518
1519	void
1520	clean_object (object *op)
1521	{
1522	object *tmp, *next;
1523
1524	for (tmp = op->inv; tmp; tmp = next)
1525	{
1526	next = tmp->below;
1527	clean_object (tmp);
1528	if (QUERY_FLAG (tmp, FLAG_IS_LINKED))
1529	remove_button_link (tmp);
1530	remove_ob (tmp);
1531	free_object (tmp);
1532	}
1533	}
1534
1535	/*
1536	* Remove and free all objects in the given map.
1537	*/
1538
1539	void
1540	free_all_objects (maptile *m)
1541	{
1542	int i, j;
1543	object *op;
1544
1545	for (i = 0; i < MAP_WIDTH (m); i++)
1546	for (j = 0; j < MAP_HEIGHT (m); j++)
1547	{
1548	object *previous_obj = NULL;
1549
1550	while ((op = GET_MAP_OB (m, i, j)) != NULL)
1551	{
1552	if (op == previous_obj)
1553	{
1554	LOG (llevDebug, "free_all_objects: Link error, bailing out.\n");
1555	break;
1556	}
1557	previous_obj = op;
1558	if (op->head != NULL)
1559	op = op->head;
1560
1561	/* If the map isn't in memory, free_object will remove and
1562	* free objects in op's inventory. So let it do the job.
1563	*/
1564	if (m->in_memory == MAP_IN_MEMORY)
1565	clean_object (op);
1566	remove_ob (op);
1567	free_object (op);
1568	}
1569	}
1570	}
1571
1572	/*
1573	* Frees everything allocated by the given maptileure.
1574	* don't free tmpname - our caller is left to do that
1575	*/
1576
1577	void
1578	free_map (maptile *m, int flag)
1579	{
1580	int i;
1581
1582	if (!m->in_memory)
1583	{
1584	LOG (llevError, "Trying to free freed map.\n");
1585	return;
1586	}
1587	if (flag && m->spaces)
1588	free_all_objects (m);
1589	if (m->name)
1590	FREE_AND_CLEAR (m->name);
1591	if (m->spaces)
1592	FREE_AND_CLEAR (m->spaces);
1593	if (m->msg)
1594	FREE_AND_CLEAR (m->msg);
1595	if (m->maplore)
1596	FREE_AND_CLEAR (m->maplore);
1597	if (m->shopitems)
1598	delete[]m->shopitems;
1599	m->shopitems = 0;
1600	if (m->shoprace)
1601	FREE_AND_CLEAR (m->shoprace);
1602	if (m->buttons)
1603	free_objectlinkpt (m->buttons);
1604	m->buttons = NULL;
1605	for (i = 0; i < 4; i++)
1606	{
1607	if (m->tile_path[i])
1608	FREE_AND_CLEAR (m->tile_path[i]);
1609	m->tile_map[i] = NULL;
1610	}
1611	m->in_memory = MAP_SWAPPED;
1612	}
1613
1614	/*
1615	* function: vanish maptile
1616	* m : pointer to maptile, if NULL no action
1617	* this deletes all the data on the map (freeing pointers)
1618	* and then removes this map from the global linked list of maps.
1619	*/
1620
1621	void
1622	delete_map (maptile *m)
1623	{
1624	maptile *tmp, *last;
1625	int i;
1626
1627	if (!m)
1628	return;
1629
1630	m->clear ();
1631
1632	if (m->in_memory == MAP_IN_MEMORY)
1633	{
1634	/* change to MAP_SAVING, even though we are not,
1635	* so that remove_ob doesn't do as much work.
1636	*/
1637	m->in_memory = MAP_SAVING;
1638	free_map (m, 1);
1639	}
1640	/* move this out of free_map, since tmpname can still be needed if
1641	* the map is swapped out.
1642	*/
1643	if (m->tmpname)
1644	{
1645	free (m->tmpname);
1646	m->tmpname = NULL;
1647	}
1648	last = NULL;
1649	/* We need to look through all the maps and see if any maps
1650	* are pointing at this one for tiling information. Since
1651	* tiling can be assymetric, we just can not look to see which
1652	* maps this map tiles with and clears those.
1653	*/
1654	for (tmp = first_map; tmp != NULL; tmp = tmp->next)
1655	{
1656	if (tmp->next == m)
1657	last = tmp;
1658
1659	/* This should hopefully get unrolled on a decent compiler */
1660	for (i = 0; i < 4; i++)
1661	if (tmp->tile_map[i] == m)
1662	tmp->tile_map[i] = NULL;
1663	}
1664
1665	/* If last is null, then this should be the first map in the list */
1666	if (!last)
1667	{
1668	if (m == first_map)
1669	first_map = m->next;
1670	else
1671	/* m->path is a static char, so should hopefully still have
1672	* some useful data in it.
1673	*/
1674	LOG (llevError, "delete_map: Unable to find map %s in list\n", m->path);
1675	}
1676	else
1677	last->next = m->next;
1678
1679	delete m;
1680	}
1681
1682
1683
1684	/*
1685	* Makes sure the given map is loaded and swapped in.
1686	* name is path name of the map.
1687	* flags meaning:
1688	* 0x1 (MAP_FLUSH): flush the map - always load from the map directory,
1689	* and don't do unique items or the like.
1690	* 0x2 (MAP_PLAYER_UNIQUE) - this is a unique map for each player.
1691	* dont do any more name translation on it.
1692	*
1693	* Returns a pointer to the given map.
1694	*/
1695
1696	maptile *
1697	ready_map_name (const char *name, int flags)
1698	{
1699	maptile *m;
1700
1701	if (!name)
1702	return (NULL);
1703
1704	/* Have we been at this level before? */
1705	m = has_been_loaded (name);
1706
1707	/* Map is good to go, so just return it */
1708	if (m && (m->in_memory == MAP_LOADING || m->in_memory == MAP_IN_MEMORY))
1709	{
1710	return m;
1711	}
1712
1713	/* unique maps always get loaded from their original location, and never
1714	* a temp location. Likewise, if map_flush is set, or we have never loaded
1715	* this map, load it now. I removed the reset checking from here -
1716	* it seems the probability of a player trying to enter a map that should
1717	* reset but hasn't yet is quite low, and removing that makes this function
1718	* a bit cleaner (and players probably shouldn't rely on exact timing for
1719	* resets in any case - if they really care, they should use the 'maps command.
1720	*/
1721	if ((flags & (MAP_FLUSH | MAP_PLAYER_UNIQUE)) || !m)
1722	{
1723
1724	/* first visit or time to reset */
1725	if (m)
1726	{
1727	clean_tmp_map (m); /* Doesn't make much difference */
1728	delete_map (m);
1729	}
1730
1731	/* create and load a map */
1732	if (flags & MAP_PLAYER_UNIQUE)
1733	LOG (llevDebug, "Trying to load map %s.\n", name);
1734	else
1735	LOG (llevDebug, "Trying to load map %s.\n", create_pathname (name));
1736
1737	//eval_pv ("$x = Event::time", 1);//D
1738	if (!(m = load_original_map (name, (flags & MAP_PLAYER_UNIQUE))))
1739	return (NULL);
1740	//eval_pv ("warn \"LOAD \", Event::time - $x", 1);//D
1741
1742	fix_auto_apply (m); /* Chests which open as default */
1743
1744	/* If a player unique map, no extra unique object file to load.
1745	* if from the editor, likewise.
1746	*/
1747	if (!(flags & (MAP_FLUSH | MAP_PLAYER_UNIQUE)))
1748	load_unique_objects (m);
1749
1750	if (!(flags & (MAP_FLUSH | MAP_PLAYER_UNIQUE | MAP_OVERLAY)))
1751	{
1752	m = load_overlay_map (name, m);
1753	if (m == NULL)
1754	return NULL;
1755	}
1756
1757	if (flags & MAP_PLAYER_UNIQUE)
1758	INVOKE_MAP (SWAPIN, m);
1759
1760	}
1761	else
1762	{
1763	/* If in this loop, we found a temporary map, so load it up. */
1764
1765	m = load_temporary_map (m);
1766	if (m == NULL)
1767	return NULL;
1768	load_unique_objects (m);
1769
1770	clean_tmp_map (m);
1771	m->in_memory = MAP_IN_MEMORY;
1772	/* tempnam() on sun systems (probably others) uses malloc
1773	* to allocated space for the string. Free it here.
1774	* In some cases, load_temporary_map above won't find the
1775	* temporary map, and so has reloaded a new map. If that
1776	* is the case, tmpname is now null
1777	*/
1778	if (m->tmpname)
1779	free (m->tmpname);
1780	m->tmpname = NULL;
1781	/* It's going to be saved anew anyway */
1782	}
1783
1784	/* Below here is stuff common to both first time loaded maps and
1785	* temp maps.
1786	*/
1787
1788	decay_objects (m); /* start the decay */
1789	/* In case other objects press some buttons down */
1790	update_buttons (m);
1791	if (m->outdoor)
1792	set_darkness_map (m);
1793	/* run the weather over this map */
1794	weather_effect (name);
1795	return m;
1796	}
1797
1798		932
1799	/*	933	/*
1800	* This routine is supposed to find out the difficulty of the map.	934	* This routine is supposed to find out the difficulty of the map.
1801	* difficulty does not have a lot to do with character level,	935	* difficulty does not have a lot to do with character level,
1802	* but does have a lot to do with treasure on the map.	936	* but does have a lot to do with treasure on the map.
…		…
1804	* Difficulty can now be set by the map creature. If the value stored	938	* Difficulty can now be set by the map creature. If the value stored
1805	* in the map is zero, then use this routine. Maps should really	939	* in the map is zero, then use this routine. Maps should really
1806	* have a difficulty set than using this function - human calculation	940	* have a difficulty set than using this function - human calculation
1807	* is much better than this functions guesswork.	941	* is much better than this functions guesswork.
1808	*/	942	*/
1809
1810	int	943	int
1811	calculate_difficulty (maptile *m)	944	maptile::estimate_difficulty () const
1812	{	945	{
1813	object *op;
1814	archetype *at;
1815	int x, y, i;
1816	long monster_cnt = 0;	946	long monster_cnt = 0;
1817	double avgexp = 0;	947	double avgexp = 0;
1818	sint64 total_exp = 0;	948	sint64 total_exp = 0;
1819		949
1820	if (MAP_DIFFICULTY (m))	950	for (mapspace *ms = spaces + size (); ms-- > spaces; )
1821	{	951	for (object *op = ms->bot; op; op = op->above)
1822	LOG (llevDebug, "Using stored map difficulty: %d\n", MAP_DIFFICULTY (m));
1823	return MAP_DIFFICULTY (m);
1824	}
1825
1826	for (x = 0; x < MAP_WIDTH (m); x++)
1827	for (y = 0; y < MAP_HEIGHT (m); y++)
1828	for (op = get_map_ob (m, x, y); op != NULL; op = op->above)
1829	{	952	{
1830	if (QUERY_FLAG (op, FLAG_MONSTER))	953	if (QUERY_FLAG (op, FLAG_MONSTER))
1831	{	954	{
1832	total_exp += op->stats.exp;	955	total_exp += op->stats.exp;
1833	monster_cnt++;	956	monster_cnt++;
1834	}	957	}
1835		958
1836	if (QUERY_FLAG (op, FLAG_GENERATOR))	959	if (QUERY_FLAG (op, FLAG_GENERATOR))
1837	{	960	{
1838	total_exp += op->stats.exp;	961	total_exp += op->stats.exp;
		962
1839	at = type_to_archetype (GENERATE_TYPE (op));	963	if (archetype *at = type_to_archetype (GENERATE_TYPE (op)))
1840
1841	if (at != NULL)
1842	total_exp += at->clone.stats.exp * 8;	964	total_exp += at->stats.exp * 8;
1843		965
1844	monster_cnt++;	966	monster_cnt++;
1845	}	967	}
1846	}	968	}
1847		969
1848	avgexp = (double) total_exp / monster_cnt;	970	avgexp = (double) total_exp / monster_cnt;
1849		971
1850	for (i = 1; i <= settings.max_level; i++)	972	for (int i = 1; i <= settings.max_level; i++)
1851	{
1852	if ((level_exp (i, 1) - level_exp (i - 1, 1)) > (100 * avgexp))	973	if ((level_exp (i, 1) - level_exp (i - 1, 1)) > (100 * avgexp))
1853	{
1854	/* LOG(llevDebug, "Calculated difficulty for map: %s: %d\n", m->name, i); */
1855	return i;	974	return i;
1856	}
1857	}
1858		975
1859	return 1;	976	return 1;
1860	}
1861
1862	void
1863	clean_tmp_map (maptile *m)
1864	{
1865	if (m->tmpname == NULL)
1866	return;
1867	INVOKE_MAP (CLEAN, m);
1868	(void) unlink (m->tmpname);
1869	}
1870
1871	void
1872	free_all_maps (void)
1873	{
1874	int real_maps = 0;
1875
1876	while (first_map)
1877	{
1878	/* I think some of the callers above before it gets here set this to be
1879	* saving, but we still want to free this data
1880	*/
1881	if (first_map->in_memory == MAP_SAVING)
1882	first_map->in_memory = MAP_IN_MEMORY;
1883	delete_map (first_map);
1884	real_maps++;
1885	}
1886	LOG (llevDebug, "free_all_maps: Freed %d maps\n", real_maps);
1887	}	977	}
1888		978
1889	/* change_map_light() - used to change map light level (darkness)	979	/* change_map_light() - used to change map light level (darkness)
1890	* up or down. Returns true if successful. It should now be	980	* up or down. Returns true if successful. It should now be
1891	* possible to change a value by more than 1.	981	* possible to change a value by more than 1.
1892	* Move this from los.c to map.c since this is more related	982	* Move this from los.c to map.c since this is more related
1893	* to maps than los.	983	* to maps than los.
1894	* postive values make it darker, negative make it brighter	984	* postive values make it darker, negative make it brighter
1895	*/	985	*/
1896
1897	int	986	int
1898	change_map_light (maptile *m, int change)	987	maptile::change_map_light (int change)
1899	{	988	{
1900	int new_level = m->darkness + change;	989	int new_level = darkness + change;
1901		990
1902	/* Nothing to do */	991	/* Nothing to do */
1903	if (!change || (new_level <= 0 && m->darkness == 0) || (new_level >= MAX_DARKNESS && m->darkness >= MAX_DARKNESS))	992	if (!change || (new_level <= 0 && darkness == 0) || (new_level >= MAX_DARKNESS && darkness >= MAX_DARKNESS))
1904	{
1905	return 0;	993	return 0;
1906	}
1907		994
1908	/* inform all players on the map */	995	/* inform all players on the map */
1909	if (change > 0)	996	if (change > 0)
1910	new_info_map (NDI_BLACK | NDI_UNIQUE, m, "It becomes darker.");	997	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes darker.");
1911	else	998	else
1912	new_info_map (NDI_BLACK | NDI_UNIQUE, m, "It becomes brighter.");	999	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes brighter.");
1913		1000
1914	/* Do extra checking. since m->darkness is a unsigned value,	1001	/* Do extra checking. since darkness is a unsigned value,
1915	* we need to be extra careful about negative values.	1002	* we need to be extra careful about negative values.
1916	* In general, the checks below are only needed if change	1003	* In general, the checks below are only needed if change
1917	* is not +/-1	1004	* is not +/-1
1918	*/	1005	*/
1919	if (new_level < 0)	1006	if (new_level < 0)
1920	m->darkness = 0;	1007	darkness = 0;
1921	else if (new_level >= MAX_DARKNESS)	1008	else if (new_level >= MAX_DARKNESS)
1922	m->darkness = MAX_DARKNESS;	1009	darkness = MAX_DARKNESS;
1923	else	1010	else
1924	m->darkness = new_level;	1011	darkness = new_level;
1925		1012
1926	/* All clients need to get re-updated for the change */	1013	/* All clients need to get re-updated for the change */
1927	update_all_map_los (m);	1014	update_all_map_los (this);
1928	return 1;	1015	return 1;
1929	}	1016	}
1930
1931		1017
1932	/*	1018	/*
1933	* This function updates various attributes about a specific space	1019	* This function updates various attributes about a specific space
1934	* on the map (what it looks like, whether it blocks magic,	1020	* on the map (what it looks like, whether it blocks magic,
1935	* has a living creatures, prevents people from passing	1021	* has a living creatures, prevents people from passing
1936	* through, etc)	1022	* through, etc)
1937	*/	1023	*/
1938	void	1024	void
1939	update_position (maptile *m, int x, int y)	1025	mapspace::update_ ()
1940	{	1026	{
1941	object *tmp, *last = NULL;	1027	object *tmp, *last = 0;
1942	uint8 flags = 0, oldflags, light = 0, anywhere = 0;	1028	uint8 flags = P_UPTODATE, light = 0, anywhere = 0;
1943	New_Face *top, *floor, *middle;
1944	object *top_obj, *floor_obj, *middle_obj;
1945	MoveType move_block = 0, move_slow = 0, move_on = 0, move_off = 0, move_allow = 0;	1029	MoveType move_block = 0, move_slow = 0, move_on = 0, move_off = 0, move_allow = 0;
1946		1030
1947	oldflags = GET_MAP_FLAGS (m, x, y);	1031	//object *middle = 0;
1948	if (!(oldflags & P_NEED_UPDATE))	1032	//object *top = 0;
1949	{	1033	//object *floor = 0;
1950	LOG (llevDebug, "update_position called with P_NEED_UPDATE not set: %s (%d, %d)\n", m->path, x, y);	1034	// this seems to generate better code than using locals, above
1951	return;	1035	object *&top = faces_obj[0] = 0;
1952	}	1036	object *&middle = faces_obj[1] = 0;
		1037	object *&floor = faces_obj[2] = 0;
1953		1038
1954	middle = blank_face;
1955	top = blank_face;
1956	floor = blank_face;
1957
1958	middle_obj = NULL;
1959	top_obj = NULL;
1960	floor_obj = NULL;
1961
1962	for (tmp = get_map_ob (m, x, y); tmp; last = tmp, tmp = tmp->above)	1039	for (tmp = bot; tmp; last = tmp, tmp = tmp->above)
1963	{	1040	{
1964
1965	/* This could be made additive I guess (two lights better than	1041	/* This could be made additive I guess (two lights better than
1966	* one). But if so, it shouldn't be a simple additive - 2	1042	* one). But if so, it shouldn't be a simple additive - 2
1967	* light bulbs do not illuminate twice as far as once since	1043	* light bulbs do not illuminate twice as far as once since
1968	* it is a disapation factor that is squared (or is it cubed?)	1044	* it is a dissapation factor that is cubed.
1969	*/	1045	*/
1970	if (tmp->glow_radius > light)	1046	if (tmp->glow_radius > light)
1971	light = tmp->glow_radius;	1047	light = tmp->glow_radius;
1972		1048
1973	/* This call is needed in order to update objects the player	1049	/* This call is needed in order to update objects the player
…		…
1979	* Always put the player down for drawing.	1055	* Always put the player down for drawing.
1980	*/	1056	*/
1981	if (!tmp->invisible)	1057	if (!tmp->invisible)
1982	{	1058	{
1983	if ((tmp->type == PLAYER || QUERY_FLAG (tmp, FLAG_MONSTER)))	1059	if ((tmp->type == PLAYER || QUERY_FLAG (tmp, FLAG_MONSTER)))
1984	{
1985	top = tmp->face;
1986	top_obj = tmp;	1060	top = tmp;
1987	}
1988	else if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))	1061	else if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))
1989	{	1062	{
1990	/* If we got a floor, that means middle and top were below it,	1063	/* If we got a floor, that means middle and top were below it,
1991	* so should not be visible, so we clear them.	1064	* so should not be visible, so we clear them.
1992	*/	1065	*/
1993	middle = blank_face;	1066	middle = 0;
1994	top = blank_face;	1067	top = 0;
1995	floor = tmp->face;
1996	floor_obj = tmp;	1068	floor = tmp;
1997	}	1069	}
1998	/* Flag anywhere have high priority */	1070	/* Flag anywhere have high priority */
1999	else if (QUERY_FLAG (tmp, FLAG_SEE_ANYWHERE))	1071	else if (QUERY_FLAG (tmp, FLAG_SEE_ANYWHERE))
2000	{	1072	{
2001	middle = tmp->face;
2002
2003	middle_obj = tmp;	1073	middle = tmp;
2004	anywhere = 1;	1074	anywhere = 1;
2005	}	1075	}
2006	/* Find the highest visible face around. If equal	1076	/* Find the highest visible face around. If equal
2007	* visibilities, we still want the one nearer to the	1077	* visibilities, we still want the one nearer to the
2008	* top	1078	* top
2009	*/	1079	*/
2010	else if (middle == blank_face || (tmp->face->visibility > middle->visibility && !anywhere))	1080	else if (!middle || (::faces [tmp->face].visibility > ::faces [middle->face].visibility && !anywhere))
2011	{
2012	middle = tmp->face;
2013	middle_obj = tmp;	1081	middle = tmp;
2014	}
2015	}	1082	}
		1083
2016	if (tmp == tmp->above)	1084	if (tmp == tmp->above)
2017	{	1085	{
2018	LOG (llevError, "Error in structure of map\n");	1086	LOG (llevError, "Error in structure of map\n");
2019	exit (-1);	1087	exit (-1);
2020	}	1088	}
2021		1089
2022	move_slow |= tmp->move_slow;	1090	move_slow |= tmp->move_slow;
2023	move_block |= tmp->move_block;	1091	move_block |= tmp->move_block;
2024	move_on |= tmp->move_on;	1092	move_on |= tmp->move_on;
2025	move_off |= tmp->move_off;	1093	move_off |= tmp->move_off;
2026	move_allow |= tmp->move_allow;	1094	move_allow |= tmp->move_allow;
2027		1095
2028	if (QUERY_FLAG (tmp, FLAG_ALIVE))
2029	flags |= P_IS_ALIVE;
2030	if (QUERY_FLAG (tmp, FLAG_NO_MAGIC))
2031	flags |= P_NO_MAGIC;
2032	if (QUERY_FLAG (tmp, FLAG_DAMNED))
2033	flags |= P_NO_CLERIC;
2034	if (tmp->type == SAFE_GROUND)
2035	flags |= P_SAFE;
2036
2037	if (QUERY_FLAG (tmp, FLAG_BLOCKSVIEW))	1096	if (QUERY_FLAG (tmp, FLAG_BLOCKSVIEW)) flags |= P_BLOCKSVIEW;
2038	flags |= P_BLOCKSVIEW;	1097	if (QUERY_FLAG (tmp, FLAG_NO_MAGIC)) flags |= P_NO_MAGIC;
2039	} /* for stack of objects */	1098	if (tmp->type == PLAYER) flags |= P_PLAYER;
2040		1099	if (tmp->type == SAFE_GROUND) flags |= P_SAFE;
2041	/* we don't want to rely on this function to have accurate flags, but	1100	if (QUERY_FLAG (tmp, FLAG_ALIVE)) flags |= P_IS_ALIVE;
2042	* since we're already doing the work, we calculate them here.	1101	if (QUERY_FLAG (tmp, FLAG_DAMNED)) flags |= P_NO_CLERIC;
2043	* if they don't match, logic is broken someplace.
2044	*/
2045	if (((oldflags & ~(P_NEED_UPDATE | P_NO_ERROR)) != flags) && (!(oldflags & P_NO_ERROR)))
2046	{	1102	}
2047	LOG (llevDebug, "update_position: updated flags do not match old flags: %s (old=%d,new=%d) %x != %x\n",	1103
2048	m->path, x, y, (oldflags & ~P_NEED_UPDATE), flags);	1104	this->light = light;
2049	}	1105	this->flags_ = flags;
2050	SET_MAP_FLAGS (m, x, y, flags);	1106	this->move_block = move_block & ~move_allow;
2051	SET_MAP_MOVE_BLOCK (m, x, y, move_block & ~move_allow);	1107	this->move_on = move_on;
2052	SET_MAP_MOVE_ON (m, x, y, move_on);	1108	this->move_off = move_off;
2053	SET_MAP_MOVE_OFF (m, x, y, move_off);	1109	this->move_slow = move_slow;
2054	SET_MAP_MOVE_SLOW (m, x, y, move_slow);
2055		1110
2056	/* At this point, we have a floor face (if there is a floor),	1111	/* At this point, we have a floor face (if there is a floor),
2057	* and the floor is set - we are not going to touch it at	1112	* and the floor is set - we are not going to touch it at
2058	* this point.	1113	* this point.
2059	* middle contains the highest visibility face.	1114	* middle contains the highest visibility face.
…		…
2066	* middle face. This should not happen, as we already have the	1121	* middle face. This should not happen, as we already have the
2067	* else statement above so middle should not get set. OTOH, it	1122	* else statement above so middle should not get set. OTOH, it
2068	* may be possible for the faces to match but be different objects.	1123	* may be possible for the faces to match but be different objects.
2069	*/	1124	*/
2070	if (top == middle)	1125	if (top == middle)
2071	middle = blank_face;	1126	middle = 0;
2072		1127
2073	/* There are three posibilities at this point:	1128	/* There are three posibilities at this point:
2074	* 1) top face is set, need middle to be set.	1129	* 1) top face is set, need middle to be set.
2075	* 2) middle is set, need to set top.	1130	* 2) middle is set, need to set top.
2076	* 3) neither middle or top is set - need to set both.	1131	* 3) neither middle or top is set - need to set both.
…		…
2081	/* Once we get to a floor, stop, since we already have a floor object */	1136	/* Once we get to a floor, stop, since we already have a floor object */
2082	if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))	1137	if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))
2083	break;	1138	break;
2084		1139
2085	/* If two top faces are already set, quit processing */	1140	/* If two top faces are already set, quit processing */
2086	if ((top != blank_face) && (middle != blank_face))	1141	if (top && middle)
2087	break;	1142	break;
2088		1143
2089	/* Only show visible faces, unless its the editor - show all */	1144	/* Only show visible faces */
2090	if (!tmp->invisible || editor)	1145	if (!tmp->invisible)
2091	{	1146	{
2092	/* Fill in top if needed */	1147	/* Fill in top if needed */
2093	if (top == blank_face)	1148	if (!top)
2094	{	1149	{
2095	top = tmp->face;
2096	top_obj = tmp;	1150	top = tmp;
2097	if (top == middle)	1151	if (top == middle)
2098	middle = blank_face;	1152	middle = 0;
2099	}	1153	}
2100	else	1154	else
2101	{	1155	{
2102	/* top is already set - we should only get here if	1156	/* top is already set - we should only get here if
2103	* middle is not set	1157	* middle is not set
2104	*	1158	*
2105	* Set the middle face and break out, since there is nothing	1159	* Set the middle face and break out, since there is nothing
2106	* more to fill in. We don't check visiblity here, since	1160	* more to fill in. We don't check visiblity here, since
2107	*	1161	*
2108	*/	1162	*/
2109	if (tmp->face != top)	1163	if (tmp != top)
2110	{	1164	{
2111	middle = tmp->face;
2112	middle_obj = tmp;	1165	middle = tmp;
2113	break;	1166	break;
2114	}	1167	}
2115	}	1168	}
2116	}	1169	}
2117	}	1170	}
		1171
2118	if (middle == floor)	1172	if (middle == floor)
2119	middle = blank_face;	1173	middle = 0;
		1174
2120	if (top == middle)	1175	if (top == middle)
2121	middle = blank_face;	1176	middle = 0;
2122	SET_MAP_FACE (m, x, y, top, 0);
2123	if (top != blank_face)
2124	SET_MAP_FACE_OBJ (m, x, y, top_obj, 0);
2125	else
2126	SET_MAP_FACE_OBJ (m, x, y, NULL, 0);
2127	SET_MAP_FACE (m, x, y, middle, 1);
2128	if (middle != blank_face)
2129	SET_MAP_FACE_OBJ (m, x, y, middle_obj, 1);
2130	else
2131	SET_MAP_FACE_OBJ (m, x, y, NULL, 1);
2132	SET_MAP_FACE (m, x, y, floor, 2);
2133	if (floor != blank_face)
2134	SET_MAP_FACE_OBJ (m, x, y, floor_obj, 2);
2135	else
2136	SET_MAP_FACE_OBJ (m, x, y, NULL, 2);
2137	SET_MAP_LIGHT (m, x, y, light);
2138	}
2139		1177
2140		1178	#if 0
2141	void	1179	faces_obj [0] = top;
2142	set_map_reset_time (maptile *map)	1180	faces_obj [1] = middle;
2143	{	1181	faces_obj [2] = floor;
2144	int timeout;	1182	#endif
2145
2146	timeout = MAP_RESET_TIMEOUT (map);
2147	if (timeout <= 0)
2148	timeout = MAP_DEFAULTRESET;
2149	if (timeout >= MAP_MAXRESET)
2150	timeout = MAP_MAXRESET;
2151	MAP_WHEN_RESET (map) = seconds () + timeout;
2152	}	1183	}
2153		1184
2154	/* this updates the orig_map->tile_map[tile_num] value after loading	1185	uint64
2155	* the map. It also takes care of linking back the freshly loaded	1186	mapspace::volume () const
2156	* maps tile_map values if it tiles back to this one. It returns
2157	* the value of orig_map->tile_map[tile_num]. It really only does this
2158	* so that it is easier for calling functions to verify success.
2159	*/
2160
2161	static maptile *
2162	load_and_link_tiled_map (maptile *orig_map, int tile_num)
2163	{	1187	{
2164	int dest_tile = (tile_num + 2) % 4;	1188	uint64 vol = 0;
2165	char *path = path_combine_and_normalize (orig_map->path, orig_map->tile_path[tile_num]);
2166		1189
2167	orig_map->tile_map[tile_num] = ready_map_name (path, 0);	1190	for (object *op = top; op && !op->flag [FLAG_NO_PICK]; op = op->below)
		1191	vol += op->volume ();
2168		1192
2169	/* need to do a strcmp here as the orig_map->path is not a shared string */	1193	return vol;
2170	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))	1194	}
2171	orig_map->tile_map[tile_num]->tile_map[dest_tile] = orig_map;
2172		1195
2173	return orig_map->tile_map[tile_num];	1196	bool
		1197	maptile::tile_available (int dir, bool load)
		1198	{
		1199	if (!tile_path[dir])
		1200	return 0;
		1201
		1202	if (tile_map[dir] && (!load || tile_map[dir]->in_memory == MAP_IN_MEMORY))
		1203	return 1;
		1204
		1205	if ((tile_map[dir] = find_async (tile_path[dir], this, load)))
		1206	return 1;
		1207
		1208	return 0;
2174	}	1209	}
2175		1210
2176	/* this returns TRUE if the coordinates (x,y) are out of	1211	/* this returns TRUE if the coordinates (x,y) are out of
2177	* map m. This function also takes into account any	1212	* map m. This function also takes into account any
2178	* tiling considerations, loading adjacant maps as needed.	1213	* tiling considerations, loading adjacant maps as needed.
2179	* This is the function should always be used when it	1214	* This is the function should always be used when it
2180	* necessary to check for valid coordinates.	1215	* necessary to check for valid coordinates.
2181	* This function will recursively call itself for the	1216	* This function will recursively call itself for the
2182	* tiled maps.	1217	* tiled maps.
2183	*
2184	*
2185	*/	1218	*/
2186	int	1219	int
2187	out_of_map (maptile *m, int x, int y)	1220	out_of_map (maptile *m, int x, int y)
2188	{	1221	{
2189
2190	/* If we get passed a null map, this is obviously the	1222	/* If we get passed a null map, this is obviously the
2191	* case. This generally shouldn't happen, but if the	1223	* case. This generally shouldn't happen, but if the
2192	* map loads fail below, it could happen.	1224	* map loads fail below, it could happen.
2193	*/	1225	*/
2194	if (!m)	1226	if (!m)
2195	return 0;	1227	return 0;
2196		1228
2197	if (x < 0)	1229	if (x < 0)
2198	{	1230	{
2199	if (!m->tile_path[3])	1231	if (!m->tile_available (3))
2200	return 1;	1232	return 1;
2201	if (!m->tile_map[3] || m->tile_map[3]->in_memory != MAP_IN_MEMORY)	1233
2202	{
2203	load_and_link_tiled_map (m, 3);
2204	}
2205	return (out_of_map (m->tile_map[3], x + MAP_WIDTH (m->tile_map[3]), y));	1234	return out_of_map (m->tile_map[3], x + m->tile_map[3]->width, y);
2206	}
2207	if (x >= MAP_WIDTH (m))
2208	{	1235	}
2209	if (!m->tile_path[1])	1236
		1237	if (x >= m->width)
		1238	{
		1239	if (!m->tile_available (1))
2210	return 1;	1240	return 1;
2211	if (!m->tile_map[1] || m->tile_map[1]->in_memory != MAP_IN_MEMORY)	1241
2212	{
2213	load_and_link_tiled_map (m, 1);
2214	}
2215	return (out_of_map (m->tile_map[1], x - MAP_WIDTH (m), y));	1242	return out_of_map (m->tile_map[1], x - m->width, y);
2216	}	1243	}
		1244
2217	if (y < 0)	1245	if (y < 0)
2218	{	1246	{
2219	if (!m->tile_path[0])	1247	if (!m->tile_available (0))
2220	return 1;	1248	return 1;
2221	if (!m->tile_map[0] || m->tile_map[0]->in_memory != MAP_IN_MEMORY)	1249
2222	{
2223	load_and_link_tiled_map (m, 0);
2224	}
2225	return (out_of_map (m->tile_map[0], x, y + MAP_HEIGHT (m->tile_map[0])));	1250	return out_of_map (m->tile_map[0], x, y + m->tile_map[0]->height);
2226	}
2227	if (y >= MAP_HEIGHT (m))
2228	{	1251	}
2229	if (!m->tile_path[2])	1252
		1253	if (y >= m->height)
		1254	{
		1255	if (!m->tile_available (2))
2230	return 1;	1256	return 1;
2231	if (!m->tile_map[2] || m->tile_map[2]->in_memory != MAP_IN_MEMORY)	1257
2232	{
2233	load_and_link_tiled_map (m, 2);
2234	}
2235	return (out_of_map (m->tile_map[2], x, y - MAP_HEIGHT (m)));	1258	return out_of_map (m->tile_map[2], x, y - m->height);
2236	}	1259	}
2237		1260
2238	/* Simple case - coordinates are within this local	1261	/* Simple case - coordinates are within this local
2239	* map.	1262	* map.
2240	*/	1263	*/
…		…
2243		1266
2244	/* This is basically the same as out_of_map above, but	1267	/* This is basically the same as out_of_map above, but
2245	* instead we return NULL if no map is valid (coordinates	1268	* instead we return NULL if no map is valid (coordinates
2246	* out of bounds and no tiled map), otherwise it returns	1269	* out of bounds and no tiled map), otherwise it returns
2247	* the map as that the coordinates are really on, and	1270	* the map as that the coordinates are really on, and
2248	* updates x and y to be the localized coordinates.	1271	* updates x and y to be the localised coordinates.
2249	* Using this is more efficient of calling out_of_map	1272	* Using this is more efficient of calling out_of_map
2250	* and then figuring out what the real map is	1273	* and then figuring out what the real map is
2251	*/	1274	*/
2252	maptile *	1275	maptile *
2253	get_map_from_coord (maptile *m, sint16 * x, sint16 * y)	1276	maptile::xy_find (sint16 &x, sint16 &y)
2254	{	1277	{
2255
2256	if (*x < 0)	1278	if (x < 0)
2257	{	1279	{
2258	if (!m->tile_path[3])	1280	if (!tile_available (3))
2259	return NULL;	1281	return 0;
2260	if (!m->tile_map[3] || m->tile_map[3]->in_memory != MAP_IN_MEMORY)
2261	load_and_link_tiled_map (m, 3);
2262		1282
2263	*x += MAP_WIDTH (m->tile_map[3]);	1283	x += tile_map[3]->width;
2264	return (get_map_from_coord (m->tile_map[3], x, y));	1284	return tile_map[3]->xy_find (x, y);
2265	}
2266	if (*x >= MAP_WIDTH (m))
2267	{	1285	}
2268	if (!m->tile_path[1])	1286
		1287	if (x >= width)
		1288	{
		1289	if (!tile_available (1))
2269	return NULL;	1290	return 0;
2270	if (!m->tile_map[1] || m->tile_map[1]->in_memory != MAP_IN_MEMORY)
2271	load_and_link_tiled_map (m, 1);
2272		1291
2273	*x -= MAP_WIDTH (m);	1292	x -= width;
2274	return (get_map_from_coord (m->tile_map[1], x, y));	1293	return tile_map[1]->xy_find (x, y);
2275	}	1294	}
		1295
2276	if (*y < 0)	1296	if (y < 0)
2277	{	1297	{
2278	if (!m->tile_path[0])	1298	if (!tile_available (0))
2279	return NULL;	1299	return 0;
2280	if (!m->tile_map[0] || m->tile_map[0]->in_memory != MAP_IN_MEMORY)
2281	load_and_link_tiled_map (m, 0);
2282		1300
2283	*y += MAP_HEIGHT (m->tile_map[0]);	1301	y += tile_map[0]->height;
2284	return (get_map_from_coord (m->tile_map[0], x, y));	1302	return tile_map[0]->xy_find (x, y);
2285	}
2286	if (*y >= MAP_HEIGHT (m))
2287	{	1303	}
2288	if (!m->tile_path[2])	1304
		1305	if (y >= height)
		1306	{
		1307	if (!tile_available (2))
2289	return NULL;	1308	return 0;
2290	if (!m->tile_map[2] || m->tile_map[2]->in_memory != MAP_IN_MEMORY)
2291	load_and_link_tiled_map (m, 2);
2292		1309
2293	*y -= MAP_HEIGHT (m);	1310	y -= height;
2294	return (get_map_from_coord (m->tile_map[2], x, y));	1311	return tile_map[2]->xy_find (x, y);
2295	}	1312	}
2296		1313
2297	/* Simple case - coordinates are within this local	1314	/* Simple case - coordinates are within this local
2298	* map.	1315	* map.
2299	*/	1316	*/
2300
2301	return m;	1317	return this;
2302	}	1318	}
2303		1319
2304	/**	1320	/**
2305	* Return whether map2 is adjacent to map1. If so, store the distance from	1321	* Return whether map2 is adjacent to map1. If so, store the distance from
2306	* map1 to map2 in dx/dy.	1322	* map1 to map2 in dx/dy.
2307	*/	1323	*/
2308	static int	1324	int
2309	adjacent_map (const maptile *map1, const maptile *map2, int *dx, int *dy)	1325	adjacent_map (const maptile *map1, const maptile *map2, int *dx, int *dy)
2310	{	1326	{
2311	if (!map1 || !map2)	1327	if (!map1 || !map2)
2312	return 0;	1328	return 0;
2313		1329
		1330	//TODO: this doesn't actually check correctly when intermediate maps are not loaded
		1331	//fix: compare paths instead (this is likely faster, too!)
2314	if (map1 == map2)	1332	if (map1 == map2)
2315	{	1333	{
2316	*dx = 0;	1334	*dx = 0;
2317	*dy = 0;	1335	*dy = 0;
2318
2319	}	1336	}
2320	else if (map1->tile_map[0] == map2)	1337	else if (map1->tile_map[0] == map2)
2321	{ /* up */	1338	{ /* up */
2322	*dx = 0;	1339	*dx = 0;
2323	*dy = -MAP_HEIGHT (map2);	1340	*dy = -map2->height;
2324	}	1341	}
2325	else if (map1->tile_map[1] == map2)	1342	else if (map1->tile_map[1] == map2)
2326	{ /* right */	1343	{ /* right */
2327	*dx = MAP_WIDTH (map1);	1344	*dx = map1->width;
2328	*dy = 0;	1345	*dy = 0;
2329	}	1346	}
2330	else if (map1->tile_map[2] == map2)	1347	else if (map1->tile_map[2] == map2)
2331	{ /* down */	1348	{ /* down */
2332	*dx = 0;	1349	*dx = 0;
2333	*dy = MAP_HEIGHT (map1);	1350	*dy = map1->height;
2334	}	1351	}
2335	else if (map1->tile_map[3] == map2)	1352	else if (map1->tile_map[3] == map2)
2336	{ /* left */	1353	{ /* left */
2337	*dx = -MAP_WIDTH (map2);	1354	*dx = -map2->width;
2338	*dy = 0;	1355	*dy = 0;
2339
2340	}	1356	}
2341	else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[1] == map2)	1357	else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[1] == map2)
2342	{ /* up right */	1358	{ /* up right */
2343	*dx = MAP_WIDTH (map1->tile_map[0]);	1359	*dx = map1->tile_map[0]->width;
2344	*dy = -MAP_HEIGHT (map1->tile_map[0]);	1360	*dy = -map1->tile_map[0]->height;
2345	}	1361	}
2346	else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[3] == map2)	1362	else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[3] == map2)
2347	{ /* up left */	1363	{ /* up left */
2348	*dx = -MAP_WIDTH (map2);	1364	*dx = -map2->width;
2349	*dy = -MAP_HEIGHT (map1->tile_map[0]);	1365	*dy = -map1->tile_map[0]->height;
2350	}	1366	}
2351	else if (map1->tile_map[1] && map1->tile_map[1]->tile_map[0] == map2)	1367	else if (map1->tile_map[1] && map1->tile_map[1]->tile_map[0] == map2)
2352	{ /* right up */	1368	{ /* right up */
2353	*dx = MAP_WIDTH (map1);	1369	*dx = map1->width;
2354	*dy = -MAP_HEIGHT (map2);	1370	*dy = -map2->height;
2355	}	1371	}
2356	else if (map1->tile_map[1] && map1->tile_map[1]->tile_map[2] == map2)	1372	else if (map1->tile_map[1] && map1->tile_map[1]->tile_map[2] == map2)
2357	{ /* right down */	1373	{ /* right down */
2358	*dx = MAP_WIDTH (map1);	1374	*dx = map1->width;
2359	*dy = MAP_HEIGHT (map1->tile_map[1]);	1375	*dy = map1->tile_map[1]->height;
2360	}	1376	}
2361	else if (map1->tile_map[2] && map1->tile_map[2]->tile_map[1] == map2)	1377	else if (map1->tile_map[2] && map1->tile_map[2]->tile_map[1] == map2)
2362	{ /* down right */	1378	{ /* down right */
2363	*dx = MAP_WIDTH (map1->tile_map[2]);	1379	*dx = map1->tile_map[2]->width;
2364	*dy = MAP_HEIGHT (map1);	1380	*dy = map1->height;
2365	}	1381	}
2366	else if (map1->tile_map[2] && map1->tile_map[2]->tile_map[3] == map2)	1382	else if (map1->tile_map[2] && map1->tile_map[2]->tile_map[3] == map2)
2367	{ /* down left */	1383	{ /* down left */
2368	*dx = -MAP_WIDTH (map2);	1384	*dx = -map2->width;
2369	*dy = MAP_HEIGHT (map1);	1385	*dy = map1->height;
2370	}	1386	}
2371	else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[0] == map2)	1387	else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[0] == map2)
2372	{ /* left up */	1388	{ /* left up */
2373	*dx = -MAP_WIDTH (map1->tile_map[3]);	1389	*dx = -map1->tile_map[3]->width;
2374	*dy = -MAP_HEIGHT (map2);	1390	*dy = -map2->height;
2375	}	1391	}
2376	else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[2] == map2)	1392	else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[2] == map2)
2377	{ /* left down */	1393	{ /* left down */
2378	*dx = -MAP_WIDTH (map1->tile_map[3]);	1394	*dx = -map1->tile_map[3]->width;
2379	*dy = MAP_HEIGHT (map1->tile_map[3]);	1395	*dy = map1->tile_map[3]->height;
2380
2381	}	1396	}
2382	else	1397	else
2383	{ /* not "adjacent" enough */
2384	return 0;	1398	return 0;
2385	}
2386		1399
2387	return 1;	1400	return 1;
		1401	}
		1402
		1403	maptile *
		1404	maptile::xy_load (sint16 &x, sint16 &y)
		1405	{
		1406	maptile *map = xy_find (x, y);
		1407
		1408	if (map)
		1409	map->load_sync ();
		1410
		1411	return map;
		1412	}
		1413
		1414	maptile *
		1415	get_map_from_coord (maptile *m, sint16 *x, sint16 *y)
		1416	{
		1417	return m->xy_load (*x, *y);
2388	}	1418	}
2389		1419
2390	/* From map.c	1420	/* From map.c
2391	* This is used by get_player to determine where the other	1421	* This is used by get_player to determine where the other
2392	* creature is. get_rangevector takes into account map tiling,	1422	* creature is. get_rangevector takes into account map tiling,
2393	* so you just can not look the the map coordinates and get the	1423	* so you just can not look the the map coordinates and get the
2394	* righte value. distance_x/y are distance away, which	1424	* righte value. distance_x/y are distance away, which
2395	* can be negativbe. direction is the crossfire direction scheme	1425	* can be negative. direction is the crossfire direction scheme
2396	* that the creature should head. part is the part of the	1426	* that the creature should head. part is the part of the
2397	* monster that is closest.	1427	* monster that is closest.
2398	*	1428	*
2399	* get_rangevector looks at op1 and op2, and fills in the	1429	* get_rangevector looks at op1 and op2, and fills in the
2400	* structure for op1 to get to op2.	1430	* structure for op1 to get to op2.
…		…
2405	* be unexpected	1435	* be unexpected
2406	*	1436	*
2407	* currently, the only flag supported (0x1) is don't translate for	1437	* currently, the only flag supported (0x1) is don't translate for
2408	* closest body part of 'op1'	1438	* closest body part of 'op1'
2409	*/	1439	*/
2410
2411	void	1440	void
2412	get_rangevector (object *op1, object *op2, rv_vector * retval, int flags)	1441	get_rangevector (object *op1, object *op2, rv_vector * retval, int flags)
2413	{	1442	{
2414	if (!adjacent_map (op1->map, op2->map, &retval->distance_x, &retval->distance_y))	1443	if (!adjacent_map (op1->map, op2->map, &retval->distance_x, &retval->distance_y))
2415	{	1444	{
2416	/* be conservative and fill in _some_ data */	1445	/* be conservative and fill in _some_ data */
2417	retval->distance = 100000;	1446	retval->distance = 10000;
2418	retval->distance_x = 32767;	1447	retval->distance_x = 10000;
2419	retval->distance_y = 32767;	1448	retval->distance_y = 10000;
2420	retval->direction = 0;	1449	retval->direction = 0;
2421	retval->part = 0;	1450	retval->part = 0;
2422	}	1451	}
2423	else	1452	else
2424	{	1453	{
…		…
2429		1458
2430	best = op1;	1459	best = op1;
2431	/* If this is multipart, find the closest part now */	1460	/* If this is multipart, find the closest part now */
2432	if (!(flags & 0x1) && op1->more)	1461	if (!(flags & 0x1) && op1->more)
2433	{	1462	{
2434	object *tmp;
2435	int best_distance = retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y, tmpi;	1463	int best_distance = retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y, tmpi;
2436		1464
2437	/* we just take the offset of the piece to head to figure	1465	/* we just take the offset of the piece to head to figure
2438	* distance instead of doing all that work above again	1466	* distance instead of doing all that work above again
2439	* since the distance fields we set above are positive in the	1467	* since the distance fields we set above are positive in the
2440	* same axis as is used for multipart objects, the simply arithmetic	1468	* same axis as is used for multipart objects, the simply arithmetic
2441	* below works.	1469	* below works.
2442	*/	1470	*/
2443	for (tmp = op1->more; tmp != NULL; tmp = tmp->more)	1471	for (object *tmp = op1->more; tmp; tmp = tmp->more)
2444	{	1472	{
2445	tmpi = (op1->x - tmp->x + retval->distance_x) * (op1->x - tmp->x + retval->distance_x) +	1473	tmpi = (op1->x - tmp->x + retval->distance_x) * (op1->x - tmp->x + retval->distance_x) +
2446	(op1->y - tmp->y + retval->distance_y) * (op1->y - tmp->y + retval->distance_y);	1474	(op1->y - tmp->y + retval->distance_y) * (op1->y - tmp->y + retval->distance_y);
2447	if (tmpi < best_distance)	1475	if (tmpi < best_distance)
2448	{	1476	{
2449	best_distance = tmpi;	1477	best_distance = tmpi;
2450	best = tmp;	1478	best = tmp;
2451	}	1479	}
2452	}	1480	}
		1481
2453	if (best != op1)	1482	if (best != op1)
2454	{	1483	{
2455	retval->distance_x += op1->x - best->x;	1484	retval->distance_x += op1->x - best->x;
2456	retval->distance_y += op1->y - best->y;	1485	retval->distance_y += op1->y - best->y;
2457	}	1486	}
2458	}	1487	}
		1488
2459	retval->part = best;	1489	retval->part = best;
2460	retval->distance = isqrt (retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y);	1490	retval->distance = upos_max (abs (retval->distance_x), abs (retval->distance_y));
2461	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);	1491	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);
2462	}	1492	}
2463	}	1493	}
2464		1494
2465	/* this is basically the same as get_rangevector above, but instead of	1495	/* this is basically the same as get_rangevector above, but instead of
…		…
2470	* flags has no meaning for this function at this time - I kept it in to	1500	* flags has no meaning for this function at this time - I kept it in to
2471	* be more consistant with the above function and also in case they are needed	1501	* be more consistant with the above function and also in case they are needed
2472	* for something in the future. Also, since no object is pasted, the best	1502	* for something in the future. Also, since no object is pasted, the best
2473	* field of the rv_vector is set to NULL.	1503	* field of the rv_vector is set to NULL.
2474	*/	1504	*/
2475
2476	void	1505	void
2477	get_rangevector_from_mapcoord (const maptile *m, int x, int y, const object *op2, rv_vector * retval, int flags)	1506	get_rangevector_from_mapcoord (const maptile *m, int x, int y, const object *op2, rv_vector *retval, int flags)
2478	{	1507	{
2479	if (!adjacent_map (m, op2->map, &retval->distance_x, &retval->distance_y))	1508	if (!adjacent_map (m, op2->map, &retval->distance_x, &retval->distance_y))
2480	{	1509	{
2481	/* be conservative and fill in _some_ data */	1510	/* be conservative and fill in _some_ data */
2482	retval->distance = 100000;	1511	retval->distance = 100000;
…		…
2489	{	1518	{
2490	retval->distance_x += op2->x - x;	1519	retval->distance_x += op2->x - x;
2491	retval->distance_y += op2->y - y;	1520	retval->distance_y += op2->y - y;
2492		1521
2493	retval->part = NULL;	1522	retval->part = NULL;
2494	retval->distance = isqrt (retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y);	1523	retval->distance = idistance (retval->distance_x, retval->distance_y);
2495	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);	1524	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);
2496	}	1525	}
2497	}	1526	}
2498		1527
2499	/* Returns true of op1 and op2 are effectively on the same map	1528	/* Returns true of op1 and op2 are effectively on the same map
2500	* (as related to map tiling). Note that this looks for a path from	1529	* (as related to map tiling). Note that this looks for a path from
2501	* op1 to op2, so if the tiled maps are assymetric and op2 has a path	1530	* op1 to op2, so if the tiled maps are asymetric and op2 has a path
2502	* to op1, this will still return false.	1531	* to op1, this will still return false.
2503	* Note we only look one map out to keep the processing simple	1532	* Note we only look one map out to keep the processing simple
2504	* and efficient. This could probably be a macro.	1533	* and efficient. This could probably be a macro.
2505	* MSW 2001-08-05	1534	* MSW 2001-08-05
2506	*/	1535	*/
…		…
2509	{	1538	{
2510	int dx, dy;	1539	int dx, dy;
2511		1540
2512	return adjacent_map (op1->map, op2->map, &dx, &dy);	1541	return adjacent_map (op1->map, op2->map, &dx, &dy);
2513	}	1542	}
		1543
		1544	object *
		1545	maptile::insert (object *op, int x, int y, object *originator, int flags)
		1546	{
		1547	if (!op->flag [FLAG_REMOVED])
		1548	op->remove ();
		1549
		1550	return insert_ob_in_map_at (op, this, originator, flags, x, y);
		1551	}
		1552
		1553	region *
		1554	maptile::region (int x, int y) const
		1555	{
		1556	if (regions
		1557	&& regionmap
		1558	&& !OUT_OF_REAL_MAP (this, x, y))
		1559	if (struct region *reg = regionmap [regions [y * width + x]])
		1560	return reg;
		1561
		1562	if (default_region)
		1563	return default_region;
		1564
		1565	return ::region::default_region ();
		1566	}
		1567
		1568	/* picks a random object from a style map.
		1569	* Redone by MSW so it should be faster and not use static
		1570	* variables to generate tables.
		1571	*/
		1572	object *
		1573	maptile::pick_random_object () const
		1574	{
		1575	/* while returning a null object will result in a crash, that
		1576	* is actually preferable to an infinite loop. That is because
		1577	* most servers will automatically restart in case of crash.
		1578	* Change the logic on getting the random space - shouldn't make
		1579	* any difference, but this seems clearer to me.
		1580	*/
		1581	for (int i = 1000; --i;)
		1582	{
		1583	object *pick = at (rndm (width), rndm (height)).bot;
		1584
		1585	// do not prefer big monsters just because they are big.
		1586	if (pick && pick->head_ () == pick)
		1587	return pick->head_ ();
		1588	}
		1589
		1590	// instead of crashing in the unlikely(?) case, try to return *something*
		1591	return get_archetype ("blocked");
		1592	}
		1593
		1594	void
		1595	maptile::play_sound (faceidx sound, int x, int y) const
		1596	{
		1597	if (!sound)
		1598	return;
		1599
		1600	for_all_players (pl)
		1601	if (pl->ob->map == this)
		1602	if (client *ns = pl->ns)
		1603	{
		1604	int dx = x - pl->ob->x;
		1605	int dy = y - pl->ob->y;
		1606
		1607	int distance = idistance (dx, dy);
		1608
		1609	if (distance <= MAX_SOUND_DISTANCE)
		1610	ns->play_sound (sound, dx, dy);
		1611	}
		1612	}
		1613

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