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Comparing deliantra/server/common/map.C (file contents):
Revision 1.33 by root, Sun Oct 8 16:51:50 2006 UTC vs.
Revision 1.125 by root, Thu Sep 6 06:53:05 2007 UTC

1	/*	1	/*
2	CrossFire, A Multiplayer game for X-windows	2	* This file is part of Crossfire TRT, the Roguelike Realtime MORPG.
3		3	*
		4	* Copyright (©) 2005,2006,2007 Marc Alexander Lehmann / Robin Redeker / the Crossfire TRT team
4	Copyright (C) 2001-2003 Mark Wedel & Crossfire Development Team	5	* Copyright (©) 2001-2003,2007 Mark Wedel & Crossfire Development Team
5	Copyright (C) 1992 Frank Tore Johansen	6	* Copyright (©) 1992,2007 Frank Tore Johansen
6		7	*
7	This program is free software; you can redistribute it and/or modify	8	* Crossfire TRT is free software: you can redistribute it and/or modify
8	it under the terms of the GNU General Public License as published by	9	* it under the terms of the GNU General Public License as published by
9	the Free Software Foundation; either version 2 of the License, or	10	* the Free Software Foundation, either version 3 of the License, or
10	(at your option) any later version.	11	* (at your option) any later version.
11		12	*
12	This program is distributed in the hope that it will be useful,	13	* This program is distributed in the hope that it will be useful,
13	but WITHOUT ANY WARRANTY; without even the implied warranty of	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15	GNU General Public License for more details.	16	* GNU General Public License for more details.
16		17	*
17	You should have received a copy of the GNU General Public License	18	* You should have received a copy of the GNU General Public License
18	along with this program; if not, write to the Free Software	19	* along with this program. If not, see <http://www.gnu.org/licenses/>.
19	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	20	*
20
21	The authors can be reached via e-mail at <crossfire@schmorp.de>	21	* The authors can be reached via e-mail to <crossfire@schmorp.de>
22	*/	22	*/
23		23
24
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	/*
37	* Returns the maptile which has a name matching the given argument.
38	* return NULL if no match is found.
39	*/
40
41	maptile *
42	has_been_loaded (const char *name)
43	{
44	maptile *map;
45
46	if (!name || !*name)
47	return 0;
48	for (map = first_map; map; map = map->next)
49	if (!strcmp (name, map->path))
50	break;
51	return (map);
52	}
53
54	/*
55	* This makes a path absolute outside the world of Crossfire.
56	* In other words, it prepends LIBDIR/MAPDIR/ to the given path
57	* and returns the pointer to a static array containing the result.
58	* it really should be called create_mapname
59	*/
60
61	const char *
62	create_pathname (const char *name)
63	{
64	static char buf[MAX_BUF];
65
66	/* Why? having extra / doesn't confuse unix anyplace? Dependancies
67	* someplace else in the code? msw 2-17-97
68	*/
69	if (*name == '/')
70	sprintf (buf, "%s/%s%s", settings.datadir, settings.mapdir, name);
71	else
72	sprintf (buf, "%s/%s/%s", settings.datadir, settings.mapdir, name);
73	return (buf);
74	}
75
76	/*
77	* same as create_pathname, but for the overlay maps.
78	*/
79
80	const char *
81	create_overlay_pathname (const char *name)
82	{
83	static char buf[MAX_BUF];
84
85	/* Why? having extra / doesn't confuse unix anyplace? Dependancies
86	* someplace else in the code? msw 2-17-97
87	*/
88	if (*name == '/')
89	sprintf (buf, "%s/%s%s", settings.localdir, settings.mapdir, name);
90	else
91	sprintf (buf, "%s/%s/%s", settings.localdir, settings.mapdir, name);
92	return (buf);
93	}
94
95	/*
96	* same as create_pathname, but for the template maps.
97	*/
98
99	const char *
100	create_template_pathname (const char *name)
101	{
102	static char buf[MAX_BUF];
103
104	/* Why? having extra / doesn't confuse unix anyplace? Dependancies
105	* someplace else in the code? msw 2-17-97
106	*/
107	if (*name == '/')
108	sprintf (buf, "%s/%s%s", settings.localdir, settings.templatedir, name);
109	else
110	sprintf (buf, "%s/%s/%s", settings.localdir, settings.templatedir, name);
111	return (buf);
112	}
113
114	/*
115	* This makes absolute path to the itemfile where unique objects
116	* will be saved. Converts '/' to '@'. I think it's essier maintain
117	* files than full directory structure, but if this is problem it can
118	* be changed.
119	*/
120	static const char *
121	create_items_path (const char *s)
122	{
123	static char buf[MAX_BUF];
124	char *t;
125
126	if (*s == '/')
127	s++;
128
129	sprintf (buf, "%s/%s/", settings.localdir, settings.uniquedir);
130
131	for (t = buf + strlen (buf); *s; s++, t++)
132	if (*s == '/')
133	*t = '@';
134	else
135	*t = *s;
136	*t = 0;
137	return (buf);
138	}
139
140
141	/*
142	* This function checks if a file with the given path exists.
143	* -1 is returned if it fails, otherwise the mode of the file
144	* is returned.
145	* It tries out all the compression suffixes listed in the uncomp[] array.
146	*
147	* If prepend_dir is set, then we call create_pathname (which prepends
148	* libdir & mapdir). Otherwise, we assume the name given is fully
149	* complete.
150	* Only the editor actually cares about the writablity of this -
151	* the rest of the code only cares that the file is readable.
152	* when the editor goes away, the call to stat should probably be
153	* replaced by an access instead (similar to the windows one, but
154	* that seems to be missing the prepend_dir processing
155	*/
156
157	int
158	check_path (const char *name, int prepend_dir)
159	{
160	char buf[MAX_BUF];
161
162	#ifndef WIN32
163	char *endbuf;
164	struct stat statbuf;
165	int mode = 0;
166	#endif
167
168	if (prepend_dir)
169	strcpy (buf, create_pathname (name));
170	else
171	strcpy (buf, name);
172	#ifdef WIN32 /* ***win32: check this sucker in windows style. */
173	return (_access (buf, 0));
174	#else
175
176	/* old method (strchr(buf, '\0')) seemd very odd to me -
177	* this method should be equivalant and is clearer.
178	* Can not use strcat because we need to cycle through
179	* all the names.
180	*/
181	endbuf = buf + strlen (buf);
182
183	if (stat (buf, &statbuf))
184	return -1;
185	if (!S_ISREG (statbuf.st_mode))
186	return (-1);
187
188	if (((statbuf.st_mode & S_IRGRP) && getegid () == statbuf.st_gid) ||
189	((statbuf.st_mode & S_IRUSR) && geteuid () == statbuf.st_uid) || (statbuf.st_mode & S_IROTH))
190	mode |= 4;
191
192	if ((statbuf.st_mode & S_IWGRP && getegid () == statbuf.st_gid) ||
193	(statbuf.st_mode & S_IWUSR && geteuid () == statbuf.st_uid) || (statbuf.st_mode & S_IWOTH))
194	mode |= 2;
195
196	return (mode);
197	#endif
198	}
199
200	/*
201	* Prints out debug-information about a map.
202	* Dumping these at llevError doesn't seem right, but is
203	* necessary to make sure the information is in fact logged.
204	*/
205
206	void
207	dump_map (const maptile *m)
208	{
209	LOG (llevError, "Map %s status: %d.\n", m->path, m->in_memory);
210	LOG (llevError, "Size: %dx%d Start: %d,%d\n", MAP_WIDTH (m), MAP_HEIGHT (m), MAP_ENTER_X (m), MAP_ENTER_Y (m));
211
212	if (m->msg != NULL)
213	LOG (llevError, "Message:\n%s", m->msg);
214
215	if (m->maplore != NULL)
216	LOG (llevError, "Lore:\n%s", m->maplore);
217
218	if (m->tmpname != NULL)
219	LOG (llevError, "Tmpname: %s\n", m->tmpname);
220
221	LOG (llevError, "Difficulty: %d\n", m->difficulty);
222	LOG (llevError, "Darkness: %d\n", m->darkness);
223	}
224
225	/*
226	* Prints out debug-information about all maps.
227	* This basically just goes through all the maps and calls
228	* dump_map on each one.
229	*/
230
231	void
232	dump_all_maps (void)
233	{
234	maptile *m;
235
236	for (m = first_map; m != NULL; m = m->next)
237	{
238	dump_map (m);
239	}
240	}
241		32
242	/* This rolls up wall, blocks_magic, blocks_view, etc, all into	33	/* This rolls up wall, blocks_magic, blocks_view, etc, all into
243	* one function that just returns a P_.. value (see map.h)	34	* one function that just returns a P_.. value (see map.h)
244	* it will also do map translation for tiled maps, returning	35	* it will also do map translation for tiled maps, returning
245	* 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
…		…
248	* 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
249	* checking for the existence of something on those spaces, but	40	* checking for the existence of something on those spaces, but
250	* don't expect to insert/remove anything from those spaces.	41	* don't expect to insert/remove anything from those spaces.
251	*/	42	*/
252	int	43	int
253	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)
254	{	45	{
255	sint16 newx, newy;	46	sint16 newx = x;
256	int retval = 0;	47	sint16 newy = y;
257	maptile *mp;
258		48
259	if (out_of_map (oldmap, x, y))	49	maptile *mp = get_map_from_coord (oldmap, &newx, &newy);
		50
		51	if (!mp)
260	return P_OUT_OF_MAP;	52	return P_OUT_OF_MAP;
261	newx = x;
262	newy = y;
263	mp = get_map_from_coord (oldmap, &newx, &newy);
264	if (mp != oldmap)
265	retval |= P_NEW_MAP;
266	if (newmap)
267	*newmap = mp;
268	if (nx)
269	*nx = newx;
270	if (ny)
271	*ny = newy;
272		53
273	retval |= mp->spaces[newx + mp->width * newy].flags;	54	if (newmap) *newmap = mp;
		55	if (nx) *nx = newx;
		56	if (ny) *ny = newy;
274		57
275	return retval;	58	return mp->at (newx, newy).flags () | (mp != oldmap ? P_NEW_MAP : 0);
276	}	59	}
277		60
278	/*	61	/*
279	* Returns true if the given coordinate is blocked except by the	62	* Returns true if the given coordinate is blocked except by the
280	* object passed is not blocking. This is used with	63	* object passed is not blocking. This is used with
…		…
303	}	86	}
304		87
305	/* 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
306	* directly.	89	* directly.
307	*/	90	*/
308	mflags = m->spaces[sx + m->width * sy].flags;	91	mflags = m->at (sx, sy).flags ();
309		92
310	blocked = GET_MAP_MOVE_BLOCK (m, sx, sy);	93	blocked = GET_MAP_MOVE_BLOCK (m, sx, sy);
311		94
312	/* If space is currently not blocked by anything, no need to	95	/* If space is currently not blocked by anything, no need to
313	* go further. Not true for players - all sorts of special	96	* go further. Not true for players - all sorts of special
…		…
324	* let the player through (inventory checkers for example)	107	* let the player through (inventory checkers for example)
325	*/	108	*/
326	if (!(mflags & P_IS_ALIVE) && !OB_TYPE_MOVE_BLOCK (ob, blocked))	109	if (!(mflags & P_IS_ALIVE) && !OB_TYPE_MOVE_BLOCK (ob, blocked))
327	return 0;	110	return 0;
328		111
329	if (ob->head != NULL)
330	ob = ob->head;	112	ob = ob->head_ ();
331		113
332	/* 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
333	* 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
334	* true. If we get through the entire stack, that must mean	116	* true. If we get through the entire stack, that must mean
335	* ob is blocking it, so return 0.	117	* ob is blocking it, so return 0.
336	*/	118	*/
337	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)
338	{	120	{
339		121
340	/* This must be before the checks below. Code for inventory checkers. */	122	/* This must be before the checks below. Code for inventory checkers. */
341	if (tmp->type == CHECK_INV && OB_MOVE_BLOCK (ob, tmp))	123	if (tmp->type == CHECK_INV && OB_MOVE_BLOCK (ob, tmp))
342	{	124	{
…		…
365	else	147	else
366	{	148	{
367	/* Broke apart a big nasty if into several here to make	149	/* Broke apart a big nasty if into several here to make
368	* this more readable. first check - if the space blocks	150	* this more readable. first check - if the space blocks
369	* movement, can't move here.	151	* movement, can't move here.
370	* 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
371	* hidden dm	153	* hidden dm
372	*/	154	*/
373	if (OB_MOVE_BLOCK (ob, tmp))	155	if (OB_MOVE_BLOCK (ob, tmp))
374	return 1;	156	return 1;
375	if (QUERY_FLAG (tmp, FLAG_ALIVE) && tmp->head != ob && tmp != ob &&	157
376	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))
377	return 1;	163	return 1;
378	}	164	}
379		165
380	}	166	}
381	return 0;	167	return 0;
382	}	168	}
383
384		169
385	/*	170	/*
386	* 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.
387	* This is meant for multi space objects - for single space objecs,	172	* This is meant for multi space objects - for single space objecs,
388	* just calling get_map_blocked and checking that against movement type	173	* just calling get_map_blocked and checking that against movement type
…		…
406	*	191	*
407	* Note this used to be arch_blocked, but with new movement	192	* Note this used to be arch_blocked, but with new movement
408	* 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
409	* against the move_block values.	194	* against the move_block values.
410	*/	195	*/
411
412	int	196	int
413	ob_blocked (const object *ob, maptile *m, sint16 x, sint16 y)	197	ob_blocked (const object *ob, maptile *m, sint16 x, sint16 y)
414	{	198	{
415	archetype *tmp;	199	archetype *tmp;
416	int flag;	200	int flag;
417	maptile *m1;	201	maptile *m1;
418	sint16 sx, sy;	202	sint16 sx, sy;
419		203
420	if (ob == NULL)	204	if (!ob)
421	{	205	{
422	flag = get_map_flags (m, &m1, x, y, &sx, &sy);	206	flag = get_map_flags (m, &m1, x, y, &sx, &sy);
423	if (flag & P_OUT_OF_MAP)	207	if (flag & P_OUT_OF_MAP)
424	return P_OUT_OF_MAP;	208	return P_OUT_OF_MAP;
425		209
426	/* 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 */
427	return (GET_MAP_MOVE_BLOCK (m1, sx, sy));	211	return m1->at (sx, sy).move_block;
428	}	212	}
429		213
430	for (tmp = ob->arch; tmp != NULL; tmp = tmp->more)	214	for (tmp = ob->arch; tmp; tmp = (archetype *)tmp->more)
431	{	215	{
432	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);
433		217
434	if (flag & P_OUT_OF_MAP)	218	if (flag & P_OUT_OF_MAP)
435	return P_OUT_OF_MAP;	219	return P_OUT_OF_MAP;
436	if (flag & P_IS_ALIVE)	220	if (flag & P_IS_ALIVE)
437	return P_IS_ALIVE;	221	return P_IS_ALIVE;
438		222
		223	mapspace &ms = m1->at (sx, sy);
		224
439	/* find_first_free_spot() calls this function. However, often	225	/* find_first_free_spot() calls this function. However, often
440	* 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)
441	* 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.
442	*/	228	*/
443		229
444	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)
445	continue;	231	continue;
446		232
447	/* 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
448	* head of the object should correspond for the entire object.	234	* head of the object should correspond for the entire object.
449	*/	235	*/
450	if (OB_TYPE_MOVE_BLOCK (ob, GET_MAP_MOVE_BLOCK (m1, sx, sy)))	236	if (OB_TYPE_MOVE_BLOCK (ob, ms.move_block))
451	return AB_NO_PASS;	237	return P_NO_PASS;
452
453	}	238	}
		239
454	return 0;	240	return 0;
455	}	241	}
456		242
457	/* 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
458	* 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
459	* and insert them properly.	245	* and insert them properly.
460	* The object 'container' is the object that contains the inventory.	246	* The object 'container' is the object that contains the inventory.
461	* This is needed so that we can update the containers weight.	247	* This is needed so that we can update the containers weight.
462	*/	248	*/
463
464	void	249	void
465	fix_container (object *container)	250	fix_container (object *container)
466	{	251	{
467	object *tmp = container->inv, *next;	252	object *tmp = container->inv, *next;
468		253
469	container->inv = NULL;	254	container->inv = 0;
470	while (tmp != NULL)	255	while (tmp)
471	{	256	{
472	next = tmp->below;	257	next = tmp->below;
473	if (tmp->inv)	258	if (tmp->inv)
474	fix_container (tmp);	259	fix_container (tmp);
		260
475	(void) insert_ob_in_ob (tmp, container);	261	insert_ob_in_ob (tmp, container);
476	tmp = next;	262	tmp = next;
477	}	263	}
		264
478	/* 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
479	* carrying.	266	* carrying.
480	*/	267	*/
481	sum_weight (container);	268	sum_weight (container);
482	}	269	}
483		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
484	/* 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
485	* 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
486	* 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
487	* they are saved). We do have to look for the old maps that did save	285	* they are saved).
488	* the more sections and not re-add sections for them.
489	*/	286	*/
490		287	void
491	static void	288	maptile::link_multipart_objects ()
492	link_multipart_objects (maptile *m)
493	{	289	{
494	int x, y;	290	if (!spaces)
495	object *tmp, *op, *last, *above;	291	return;
496	archetype *at;
497		292
498	for (x = 0; x < MAP_WIDTH (m); x++)	293	for (mapspace *ms = spaces + size (); ms-- > spaces; )
499	for (y = 0; y < MAP_HEIGHT (m); y++)	294	{
500	for (tmp = get_map_ob (m, x, y); tmp != NULL; tmp = above)	295	object *op = ms->bot;
		296	while (op)
501	{	297	{
502	above = tmp->above;
503
504	/* already multipart - don't do anything more */	298	/* already multipart - don't do anything more */
505	if (tmp->head || tmp->more)	299	if (op->head_ () == op && !op->more && op->arch->more)
506	continue;
507
508	/* If there is nothing more to this object, this for loop
509	* won't do anything.
510	*/
511	for (at = tmp->arch->more, last = tmp; at != NULL; at = at->more, last = op)
512	{	300	{
513	op = arch_to_object (at);	301	op->remove ();
		302	op->expand_tail ();
514		303
515	/* update x,y coordinates */	304	// FIXME: INS_ON_TOP is just a workaround for the pentagram vs.
516	op->x += tmp->x;	305	// multi-tile monster bug, where INS_ABOVE_FLOOR_ONLY put the monsters
517	op->y += tmp->y;	306	// below the pentagrams... hopefully INS_ON_TOP doesn't break anything
518	op->head = tmp;	307	insert (op, op->x, op->y, 0, INS_NO_MERGE | INS_ON_TOP | INS_NO_WALK_ON);
519	op->map = m;	308
520	last->more = op;	309	op = ms->bot; // we are mutating the mapspace too much with INS_ON_TOP
521	op->name = tmp->name;	310	// so we have to reset the iteration through the mapspace
522	op->title = tmp->title;
523	/* we could link all the parts onto tmp, and then just
524	* call insert_ob_in_map once, but the effect is the same,
525	* as insert_ob_in_map will call itself with each part, and
526	* the coding is simpler to just to it here with each part.
527	*/	311	}
528	insert_ob_in_map (op, op->map, tmp, INS_NO_MERGE | INS_ABOVE_FLOOR_ONLY | INS_NO_WALK_ON);	312	else
529	} /* for at = tmp->arch->more */	313	op = op->above;
530	} /* for objects on this space */	314	}
		315	}
531	}	316	}
532		317
533	/*	318	/*
534	* 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
535	* file pointer.	320	* file pointer.
536	* mapflags is the same as we get with load_original_map
537	*/	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
538	void	357	void
539	load_objects (maptile *m, object_thawer & fp, int mapflags)	358	maptile::activate ()
540	{	359	{
541	int i, j;	360	if (spaces)
542	int unique;	361	for (mapspace *ms = spaces + size (); ms-- > spaces; )
543	object *op, *prev = NULL, *last_more = NULL, *otmp;	362	for (object *op = ms->bot; op; op = op->above)
		363	op->activate_recursive ();
		364	}
544		365
545	op = get_object ();	366	void
546	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	}
547		374
548	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)
549	{	387	{
550	/* if the archetype for the object is null, means that we	388	bool unique = 0;
551	* got an invalid object. Don't do anything with it - the game	389
552	* or editor will not be able to do anything with it either.	390	for (object *op = spaces [i].bot; op; op = op->above)
553	*/
554	if (op->arch == NULL)
555	{	391	{
556	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 ()))
557	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);
558	}	404	}
559
560
561	switch (i)
562	{
563	case LL_NORMAL:
564	/* if we are loading an overlay, put the floors on the bottom */
565	if ((QUERY_FLAG (op, FLAG_IS_FLOOR) || QUERY_FLAG (op, FLAG_OVERLAY_FLOOR)) && mapflags & MAP_OVERLAY)
566	insert_ob_in_map (op, m, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ABOVE_FLOOR_ONLY | INS_MAP_LOAD);
567	else
568	insert_ob_in_map (op, m, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ON_TOP | INS_MAP_LOAD);
569
570	if (op->inv)
571	sum_weight (op);
572
573	prev = op, last_more = op;
574	break;
575
576	case LL_MORE:
577	insert_ob_in_map (op, m, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ABOVE_FLOOR_ONLY);
578	op->head = prev, last_more->more = op, last_more = op;
579	break;
580	}
581
582	if (mapflags & MAP_STYLE)
583	remove_from_active_list (op);
584
585	op = get_object ();
586	op->map = m;
587	}
588
589	for (i = 0; i < m->width; i++)
590	{	405	}
591	for (j = 0; j < m->height; j++)
592	{
593	unique = 0;
594	/* check for unique items, or unique squares */
595	for (otmp = get_map_ob (m, i, j); otmp; otmp = otmp->above)
596	{
597	if (QUERY_FLAG (otmp, FLAG_UNIQUE) || QUERY_FLAG (otmp, FLAG_OBJ_SAVE_ON_OVL))
598	unique = 1;
599	if (!(mapflags & (MAP_OVERLAY | MAP_PLAYER_UNIQUE) || unique))
600	SET_FLAG (otmp, FLAG_OBJ_ORIGINAL);
601	}
602	}
603	}
604		406
605	free_object (op);	407	coroapi::cede_to_tick ();
606	link_multipart_objects (m);
607	}
608		408
609	/* This saves all the objects on the map in a non destructive fashion.	409	return true;
610	* Modified by MSW 2001-07-01 to do in a single pass - reduces code,
611	* and we only save the head of multi part objects - this is needed
612	* in order to do map tiling properly.
613	*/
614	void
615	save_objects (maptile *m, object_freezer & fp, object_freezer & fp2, int flag)
616	{
617	int i, j = 0, unique = 0;
618	object *op;
619
620	/* first pass - save one-part objects */
621	for (i = 0; i < MAP_WIDTH (m); i++)
622	for (j = 0; j < MAP_HEIGHT (m); j++)
623	{
624	unique = 0;
625	for (op = get_map_ob (m, i, j); op; op = op->above)
626	{
627	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))
628	unique = 1;
629
630	if (op->type == PLAYER)
631	{
632	LOG (llevDebug, "Player on map that is being saved\n");
633	continue;
634	}
635
636	if (op->head || op->owner)
637	continue;
638
639	if (unique || QUERY_FLAG (op, FLAG_UNIQUE))
640	save_object (fp2, op, 3);
641	else if (flag == 0 || (flag == 2 && (!QUERY_FLAG (op, FLAG_OBJ_ORIGINAL) && !QUERY_FLAG (op, FLAG_UNPAID))))
642	save_object (fp, op, 3);
643
644	} /* for this space */
645	} /* for this j */
646	}	410	}
647		411
648	/*	412	bool
649	* Allocates, initialises, and returns a pointer to a maptile.	413	maptile::_save_objects (const char *path, int flags)
650	* Modified to no longer take a path option which was not being
651	* used anyways. MSW 2001-07-01
652	*/
653
654	maptile *
655	get_linked_map (void)
656	{	414	{
657	maptile *map = new maptile;	415	object_freezer freezer;
658	maptile *mp;
659		416
660	for (mp = first_map; mp != NULL && mp->next != NULL; mp = mp->next);	417	if (!_save_objects (freezer, flags))
661	if (mp == NULL)	418	return false;
662	first_map = map;
663	else
664	mp->next = map;
665		419
		420	return freezer.save (path);
		421	}
		422
		423	maptile::maptile ()
		424	{
666	map->in_memory = MAP_SWAPPED;	425	in_memory = MAP_SWAPPED;
		426
667	/* 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
668	* map archetype. Mimic that behaviour.	428	* map archetype. Mimic that behaviour.
669	*/	429	*/
670	MAP_WIDTH (map) = 16;	430	width = 16;
671	MAP_HEIGHT (map) = 16;	431	height = 16;
672	MAP_RESET_TIMEOUT (map) = 0;	432	timeout = 300;
673	MAP_TIMEOUT (map) = 300;	433	max_nrof = 1000; // 1000 items of anything
674	MAP_ENTER_X (map) = 0;	434	max_volume = 2000000; // 2m³
675	MAP_ENTER_Y (map) = 0;	435	}
676	/*set part to -1 indicating conversion to weather map not yet done */	436
677	MAP_WORLDPARTX (map) = -1;	437	maptile::maptile (int w, int h)
678	MAP_WORLDPARTY (map) = -1;	438	{
679	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 ();
680	}	449	}
681		450
682	/*	451	/*
683	* Allocates the arrays contained in a maptile.	452	* Allocates the arrays contained in a maptile.
684	* This basically allocates the dynamic array of spaces for the	453	* This basically allocates the dynamic array of spaces for the
685	* map.	454	* map.
686	*/	455	*/
687
688	void	456	void
689	allocate_map (maptile *m)	457	maptile::alloc ()
690	{	458	{
691	m->in_memory = MAP_IN_MEMORY;
692	/* Log this condition and free the storage. We could I suppose
693	* realloc, but if the caller is presuming the data will be intact,
694	* that is their poor assumption.
695	*/
696	if (m->spaces)	459	if (spaces)
697	{
698	LOG (llevError, "allocate_map called with already allocated map (%s)\n", m->path);
699	free (m->spaces);
700	}
701
702	m->spaces = (MapSpace *) calloc (1, MAP_WIDTH (m) * MAP_HEIGHT (m) * sizeof (MapSpace));
703
704	if (m->spaces == NULL)
705	fatal (OUT_OF_MEMORY);
706	}
707
708	/* Create and returns a map of the specific size. Used
709	* in random map code and the editor.
710	*/
711	maptile *
712	get_empty_map (int sizex, int sizey)
713	{
714	maptile *m = get_linked_map ();
715
716	m->width = sizex;
717	m->height = sizey;
718	m->in_memory = MAP_SWAPPED;
719	allocate_map (m);
720	return m;	460	return;
		461
		462	spaces = salloc0<mapspace> (size ());
721	}	463	}
722		464
723	/* Takes a string from a map definition and outputs a pointer to the array of shopitems	465	/* Takes a string from a map definition and outputs a pointer to the array of shopitems
724	* corresponding to that string. Memory is allocated for this, it must be freed	466	* corresponding to that string. Memory is allocated for this, it must be freed
725	* at a later date.	467	* at a later date.
726	* Called by parse_map_headers below.	468	* Called by parse_map_headers below.
727	*/	469	*/
728
729	static shopitems *	470	static shopitems *
730	parse_shop_string (const char *input_string)	471	parse_shop_string (const char *input_string)
731	{	472	{
732	char *shop_string, *p, *q, *next_semicolon, *next_colon;	473	char *shop_string, *p, *q, *next_semicolon, *next_colon;
733	shopitems *items = NULL;	474	shopitems *items = NULL;
734	int i = 0, number_of_entries = 0;	475	int i = 0, number_of_entries = 0;
735	const typedata *current_type;	476	const typedata *current_type;
736		477
737	shop_string = strdup_local (input_string);	478	shop_string = strdup (input_string);
738	p = shop_string;	479	p = shop_string;
739	/* 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 */
740	while (p)	481	while (p)
741	{	482	{
742	p = strchr (p, ';');	483	p = strchr (p, ';');
743	number_of_entries++;	484	number_of_entries++;
744	if (p)	485	if (p)
745	p++;	486	p++;
746	}	487	}
		488
747	p = shop_string;	489	p = shop_string;
748	strip_endline (p);	490	strip_endline (p);
749	items = new shopitems[number_of_entries + 1];	491	items = new shopitems[number_of_entries + 1];
750	for (i = 0; i < number_of_entries; i++)	492	for (i = 0; i < number_of_entries; i++)
751	{	493	{
752	if (!p)	494	if (!p)
753	{	495	{
754	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");
755	break;	497	break;
756	}	498	}
		499
757	next_semicolon = strchr (p, ';');	500	next_semicolon = strchr (p, ';');
758	next_colon = strchr (p, ':');	501	next_colon = strchr (p, ':');
759	/* 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. */
760	if (next_colon && (!next_semicolon || next_colon < next_semicolon))	503	if (next_colon && (!next_semicolon || next_colon < next_semicolon))
761	items[i].strength = atoi (strchr (p, ':') + 1);	504	items[i].strength = atoi (strchr (p, ':') + 1);
…		…
788	* 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
789	*/	532	*/
790	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);
791	}	534	}
792	}	535	}
		536
793	items[i].index = number_of_entries;	537	items[i].index = number_of_entries;
794	if (next_semicolon)	538	if (next_semicolon)
795	p = ++next_semicolon;	539	p = ++next_semicolon;
796	else	540	else
797	p = NULL;	541	p = NULL;
798	}	542	}
		543
799	free (shop_string);	544	free (shop_string);
800	return items;	545	return items;
801	}	546	}
802		547
803	/* 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
…		…
812	for (i = 0; i < m->shopitems[0].index; i++)	557	for (i = 0; i < m->shopitems[0].index; i++)
813	{	558	{
814	if (m->shopitems[i].typenum)	559	if (m->shopitems[i].typenum)
815	{	560	{
816	if (m->shopitems[i].strength)	561	if (m->shopitems[i].strength)
817	{
818	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);
819	}
820	else	563	else
821	sprintf (tmp, "%s;", m->shopitems[i].name);	564	sprintf (tmp, "%s;", m->shopitems[i].name);
822	}	565	}
823	else	566	else
824	{	567	{
825	if (m->shopitems[i].strength)	568	if (m->shopitems[i].strength)
826	{
827	sprintf (tmp, "*:%d;", m->shopitems[i].strength);	569	sprintf (tmp, "*:%d;", m->shopitems[i].strength);
828	}
829	else	570	else
830	sprintf (tmp, "*");	571	sprintf (tmp, "*");
831	}	572	}
		573
832	strcat (output_string, tmp);	574	strcat (output_string, tmp);
833	}	575	}
834	}	576	}
835		577
836	/* This loads the header information of the map. The header	578	/* This loads the header information of the map. The header
…		…
841	* put all the stuff in the map object so that names actually make	583	* put all the stuff in the map object so that names actually make
842	* sense.	584	* sense.
843	* This could be done in lex (like the object loader), but I think	585	* This could be done in lex (like the object loader), but I think
844	* currently, there are few enough fields this is not a big deal.	586	* currently, there are few enough fields this is not a big deal.
845	* MSW 2001-07-01	587	* MSW 2001-07-01
846	* return 0 on success, 1 on failure.
847	*/	588	*/
848		589	bool
849	static int	590	maptile::_load_header (object_thawer &thawer)
850	load_map_header (object_thawer & fp, maptile *m)
851	{	591	{
852	char buf[HUGE_BUF], msgbuf[HUGE_BUF], maplorebuf[HUGE_BUF], *key = NULL, *value, *end;	592	for (;;)
853	int msgpos = 0;
854	int maplorepos = 0;
855
856	while (fgets (buf, HUGE_BUF - 1, fp) != NULL)
857	{	593	{
858	buf[HUGE_BUF - 1] = 0;	594	switch (thawer.kw)
859	key = buf;
860	while (isspace (*key))
861	key++;
862	if (*key == 0)
863	continue; /* empty line */
864	value = strchr (key, ' ');
865	if (!value)
866	{	595	{
867	end = strchr (key, '\n');	596	case KW_msg:
868	if (end != NULL)	597	thawer.get_ml (KW_endmsg, msg);
869	{	598	break;
870	*end = 0;	599
		600	case KW_lore: // CF+ extension
		601	thawer.get_ml (KW_endlore, maplore);
871	}	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;
872	}	669	}
873	else
874	{
875	*value = 0;
876	value++;
877	end = strchr (value, '\n');
878	while (isspace (*value))
879	{
880	value++;
881	if (*value == '\0' || value == end)
882	{
883	/* Nothing but spaces. */
884	value = NULL;
885	break;
886	}
887	}
888	}
889		670
890	if (!end)	671	thawer.next ();
891	{
892	LOG (llevError, "Error loading map header - did not find a newline - perhaps file is truncated? Buf=%s\n", buf);
893	return 1;
894	}
895
896	/* key is the field name, value is what it should be set
897	* to. We've already done the work to null terminate key,
898	* and strip off any leading spaces for both of these.
899	* We have not touched the newline at the end of the line -
900	* these are needed for some values. the end pointer
901	* points to the first of the newlines.
902	* value could be NULL! It would be easy enough to just point
903	* this to "" to prevent cores, but that would let more errors slide
904	* through.
905	*
906	* First check for entries that do not use the value parameter, then
907	* validate that value is given and check for the remaining entries
908	* that use the parameter.
909	*/
910
911	if (!strcmp (key, "msg"))
912	{
913	while (fgets (buf, HUGE_BUF - 1, fp) != NULL)
914	{
915	if (!strcmp (buf, "endmsg\n"))
916	break;
917	else
918	{
919	/* slightly more efficient than strcat */
920	strcpy (msgbuf + msgpos, buf);
921	msgpos += strlen (buf);
922	}
923	}
924	/* There are lots of maps that have empty messages (eg, msg/endmsg
925	* with nothing between). There is no reason in those cases to
926	* keep the empty message. Also, msgbuf contains garbage data
927	* when msgpos is zero, so copying it results in crashes
928	*/
929	if (msgpos != 0)
930	m->msg = strdup_local (msgbuf);
931	}
932	else if (!strcmp (key, "maplore"))
933	{
934	while (fgets (buf, HUGE_BUF - 1, fp) != NULL)
935	{
936	if (!strcmp (buf, "endmaplore\n"))
937	break;
938	else
939	{
940	/* slightly more efficient than strcat */
941	strcpy (maplorebuf + maplorepos, buf);
942	maplorepos += strlen (buf);
943	}
944	}
945	if (maplorepos != 0)
946	m->maplore = strdup_local (maplorebuf);
947	}
948	else if (!strcmp (key, "end"))
949	{
950	break;
951	}
952	else if (value == NULL)
953	{
954	LOG (llevError, "Got '%s' line without parameter in map header\n", key);
955	}
956	else if (!strcmp (key, "arch"))
957	{
958	/* This is an oddity, but not something we care about much. */
959	if (strcmp (value, "map\n"))
960	LOG (llevError, "loading map and got a non 'arch map' line(%s %s)?\n", key, value);
961	}
962	else if (!strcmp (key, "name"))
963	{
964	*end = 0;
965	m->name = strdup_local (value);
966	}
967	/* first strcmp value on these are old names supported
968	* for compatibility reasons. The new values (second) are
969	* what really should be used.
970	*/
971	else if (!strcmp (key, "oid"))
972	{
973	fp.get (m, atoi (value));
974	}
975	else if (!strcmp (key, "attach"))
976	{
977	m->attach = value;
978	}
979	else if (!strcmp (key, "hp") || !strcmp (key, "enter_x"))
980	{
981	m->enter_x = atoi (value);
982	}
983	else if (!strcmp (key, "sp") || !strcmp (key, "enter_y"))
984	{
985	m->enter_y = atoi (value);
986	}
987	else if (!strcmp (key, "x") || !strcmp (key, "width"))
988	{
989	m->width = atoi (value);
990	}
991	else if (!strcmp (key, "y") || !strcmp (key, "height"))
992	{
993	m->height = atoi (value);
994	}
995	else if (!strcmp (key, "weight") || !strcmp (key, "reset_timeout"))
996	{
997	m->reset_timeout = atoi (value);
998	}
999	else if (!strcmp (key, "value") || !strcmp (key, "swap_time"))
1000	{
1001	m->timeout = atoi (value);
1002	}
1003	else if (!strcmp (key, "level") || !strcmp (key, "difficulty"))
1004	{
1005	m->difficulty = atoi (value);
1006	}
1007	else if (!strcmp (key, "invisible") || !strcmp (key, "darkness"))
1008	{
1009	m->darkness = atoi (value);
1010	}
1011	else if (!strcmp (key, "stand_still") || !strcmp (key, "fixed_resettime"))
1012	{
1013	m->fixed_resettime = atoi (value);
1014	}
1015	else if (!strcmp (key, "unique"))
1016	{
1017	m->unique = atoi (value);
1018	}
1019	else if (!strcmp (key, "template"))
1020	{
1021	m->templatemap = atoi (value);
1022	}
1023	else if (!strcmp (key, "region"))
1024	{
1025	m->region = get_region_by_name (value);
1026	}
1027	else if (!strcmp (key, "shopitems"))
1028	{
1029	*end = 0;
1030	m->shopitems = parse_shop_string (value);
1031	}
1032	else if (!strcmp (key, "shopgreed"))
1033	{
1034	m->shopgreed = atof (value);
1035	}
1036	else if (!strcmp (key, "shopmin"))
1037	{
1038	m->shopmin = atol (value);
1039	}
1040	else if (!strcmp (key, "shopmax"))
1041	{
1042	m->shopmax = atol (value);
1043	}
1044	else if (!strcmp (key, "shoprace"))
1045	{
1046	*end = 0;
1047	m->shoprace = strdup_local (value);
1048	}
1049	else if (!strcmp (key, "outdoor"))
1050	{
1051	m->outdoor = atoi (value);
1052	}
1053	else if (!strcmp (key, "temp"))
1054	{
1055	m->temp = atoi (value);
1056	}
1057	else if (!strcmp (key, "pressure"))
1058	{
1059	m->pressure = atoi (value);
1060	}
1061	else if (!strcmp (key, "humid"))
1062	{
1063	m->humid = atoi (value);
1064	}
1065	else if (!strcmp (key, "windspeed"))
1066	{
1067	m->windspeed = atoi (value);
1068	}
1069	else if (!strcmp (key, "winddir"))
1070	{
1071	m->winddir = atoi (value);
1072	}
1073	else if (!strcmp (key, "sky"))
1074	{
1075	m->sky = atoi (value);
1076	}
1077	else if (!strcmp (key, "nosmooth"))
1078	{
1079	m->nosmooth = atoi (value);
1080	}
1081	else if (!strncmp (key, "tile_path_", 10))
1082	{
1083	int tile = atoi (key + 10);
1084
1085	if (tile < 1 || tile > 4)
1086	{
1087	LOG (llevError, "load_map_header: tile location %d out of bounds (%s)\n", tile, m->path);
1088	}
1089	else
1090	{
1091	char *path;
1092
1093	*end = 0;
1094
1095	if (m->tile_path[tile - 1])
1096	{
1097	LOG (llevError, "load_map_header: tile location %d duplicated (%s)\n", tile, m->path);
1098	free (m->tile_path[tile - 1]);
1099	m->tile_path[tile - 1] = NULL;
1100	}
1101
1102	if (check_path (value, 1) != -1)
1103	{
1104	/* The unadorned path works. */
1105	path = value;
1106	}
1107	else
1108	{
1109	/* Try again; it could be a relative exit. */
1110
1111	path = path_combine_and_normalize (m->path, value);
1112
1113	if (check_path (path, 1) == -1)
1114	{
1115	LOG (llevError, "get_map_header: Bad tile path %s %s\n", m->path, value);
1116	path = NULL;
1117	}
1118	}
1119
1120	if (editor)
1121	{
1122	/* Use the value as in the file. */
1123	m->tile_path[tile - 1] = strdup_local (value);
1124	}
1125	else if (path != NULL)
1126	{
1127	/* Use the normalized value. */
1128	m->tile_path[tile - 1] = strdup_local (path);
1129	}
1130	} /* end if tile direction (in)valid */
1131	}
1132	else
1133	{
1134	LOG (llevError, "Got unknown value in map header: %s %s\n", key, value);
1135	}
1136	}
1137	if (!key || strcmp (key, "end"))
1138	{	672	}
1139	LOG (llevError, "Got premature eof on map header!\n");
1140	return 1;
1141	}
1142	return 0;
1143	}
1144		673
1145	/*	674	abort ();
1146	* Opens the file "filename" and reads information about the map
1147	* from the given file, and stores it in a newly allocated
1148	* maptile. A pointer to this structure is returned, or NULL on failure.
1149	* flags correspond to those in map.h. Main ones used are
1150	* MAP_PLAYER_UNIQUE, in which case we don't do any name changes, and
1151	* MAP_BLOCK, in which case we block on this load. This happens in all
1152	* cases, no matter if this flag is set or not.
1153	* MAP_STYLE: style map - don't add active objects, don't add to server
1154	* managed map list.
1155	*/
1156
1157	maptile *
1158	load_original_map (const char *filename, int flags)
1159	{
1160	maptile *m;
1161	char pathname[MAX_BUF];
1162
1163	if (flags & MAP_PLAYER_UNIQUE)
1164	strcpy (pathname, filename);
1165	else if (flags & MAP_OVERLAY)
1166	strcpy (pathname, create_overlay_pathname (filename));
1167	else
1168	strcpy (pathname, create_pathname (filename));
1169
1170	LOG (llevDebug, "load_original_map(%x): %s (%s)\n", flags, filename, pathname);
1171
1172	object_thawer thawer (pathname);
1173
1174	if (!thawer)
1175	return 0;
1176
1177	m = get_linked_map ();
1178
1179	strcpy (m->path, filename);
1180	if (load_map_header (thawer, m))
1181	{
1182	LOG (llevError, "Error loading map header for %s, flags=%d\n", filename, flags);
1183	delete_map (m);
1184	return NULL;
1185	}
1186
1187	allocate_map (m);
1188
1189	m->in_memory = MAP_LOADING;
1190	load_objects (m, thawer, flags & (MAP_BLOCK | MAP_STYLE));
1191
1192	m->in_memory = MAP_IN_MEMORY;
1193	if (!MAP_DIFFICULTY (m))
1194	MAP_DIFFICULTY (m) = calculate_difficulty (m);
1195	set_map_reset_time (m);
1196	m->instantiate ();
1197	return (m);
1198	}
1199
1200	/*
1201	* Loads a map, which has been loaded earlier, from file.
1202	* Return the map object we load into (this can change from the passed
1203	* option if we can't find the original map)
1204	*/
1205
1206	static maptile *
1207	load_temporary_map (maptile *m)
1208	{
1209	char buf[MAX_BUF];
1210
1211	if (!m->tmpname)
1212	{
1213	LOG (llevError, "No temporary filename for map %s\n", m->path);
1214	strcpy (buf, m->path);
1215	delete_map (m);
1216	m = load_original_map (buf, 0);
1217	if (m == NULL)
1218	return NULL;
1219	fix_auto_apply (m); /* Chests which open as default */
1220	return m;
1221	}
1222
1223	object_thawer thawer (m->tmpname);
1224
1225	if (!thawer)
1226	{
1227	strcpy (buf, m->path);
1228	delete_map (m);
1229	m = load_original_map (buf, 0);
1230	if (!m)
1231	return NULL;
1232	fix_auto_apply (m); /* Chests which open as default */
1233	return m;
1234	}
1235
1236	if (load_map_header (thawer, m))
1237	{
1238	LOG (llevError, "Error loading map header for %s (%s)\n", m->path, m->tmpname);
1239	delete_map (m);
1240	m = load_original_map (m->path, 0);
1241	return NULL;
1242	}
1243	allocate_map (m);
1244
1245	m->in_memory = MAP_LOADING;
1246	load_objects (m, thawer, 0);
1247
1248	m->in_memory = MAP_IN_MEMORY;
1249	INVOKE_MAP (SWAPIN, m);
1250	return m;
1251	}
1252
1253	/*
1254	* Loads a map, which has been loaded earlier, from file.
1255	* Return the map object we load into (this can change from the passed
1256	* option if we can't find the original map)
1257	*/
1258
1259	maptile *
1260	load_overlay_map (const char *filename, maptile *m)
1261	{
1262	char pathname[MAX_BUF];
1263
1264	strcpy (pathname, create_overlay_pathname (filename));
1265
1266	object_thawer thawer (pathname);
1267
1268	if (!thawer)
1269	return m;
1270
1271	if (load_map_header (thawer, m))
1272	{
1273	LOG (llevError, "Error loading map header for overlay %s (%s)\n", m->path, pathname);
1274	delete_map (m);
1275	m = load_original_map (m->path, 0);
1276	return NULL;
1277	}
1278	/*allocate_map(m); */
1279
1280	m->in_memory = MAP_LOADING;
1281	load_objects (m, thawer, MAP_OVERLAY);
1282
1283	m->in_memory = MAP_IN_MEMORY;
1284	return m;
1285	}	675	}
1286		676
1287	/******************************************************************************	677	/******************************************************************************
1288	* This is the start of unique map handling code	678	* This is the start of unique map handling code
1289	*****************************************************************************/	679	*****************************************************************************/
1290		680
1291	/* 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. */
1292	static void	682	void
1293	delete_unique_items (maptile *m)	683	maptile::clear_unique_items ()
1294	{	684	{
1295	int i, j, unique;	685	for (int i = 0; i < size (); ++i)
1296	object *op, *next;	686	{
		687	int unique = 0;
		688	for (object *op = spaces [i].bot; op; )
		689	{
		690	object *above = op->above;
1297		691
1298	for (i = 0; i < MAP_WIDTH (m); i++)	692	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))
1299	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)
1300	{	851	{
1301	unique = 0;	852	above = op->above;
1302	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 ())
1303	{	868	{
1304	next = op->above;	869	op->stats.dam--;
1305	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))	870	if (op->stats.dam < 0)
1306	unique = 1;	871	destroy = 1;
1307	if (op->head == NULL && (QUERY_FLAG (op, FLAG_UNIQUE) || unique))
1308	{
1309	clean_object (op);
1310	if (QUERY_FLAG (op, FLAG_IS_LINKED))
1311	remove_button_link (op);
1312	remove_ob (op);
1313	free_object (op);
1314	}	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;
1315	}	929	}
1316	}	930	}
1317	}	931	}
1318
1319
1320	/*
1321	* Loads unique objects from file(s) into the map which is in memory
1322	* m is the map to load unique items into.
1323	*/
1324	static void
1325	load_unique_objects (maptile *m)
1326	{
1327	int count;
1328	char firstname[MAX_BUF];
1329
1330	for (count = 0; count < 10; count++)
1331	{
1332	sprintf (firstname, "%s.v%02d", create_items_path (m->path), count);
1333	if (!access (firstname, R_OK))
1334	break;
1335	}
1336	/* If we get here, we did not find any map */
1337	if (count == 10)
1338	return;
1339
1340	object_thawer thawer (firstname);
1341
1342	if (!thawer)
1343	return;
1344
1345	m->in_memory = MAP_LOADING;
1346	if (m->tmpname == NULL) /* if we have loaded unique items from */
1347	delete_unique_items (m); /* original map before, don't duplicate them */
1348	load_objects (m, thawer, 0);
1349
1350	m->in_memory = MAP_IN_MEMORY;
1351	}
1352
1353
1354	/*
1355	* Saves a map to file. If flag is set, it is saved into the same
1356	* file it was (originally) loaded from. Otherwise a temporary
1357	* filename will be genarated, and the file will be stored there.
1358	* The temporary filename will be stored in the maptileure.
1359	* If the map is unique, we also save to the filename in the map
1360	* (this should have been updated when first loaded)
1361	*/
1362
1363	int
1364	new_save_map (maptile *m, int flag)
1365	{
1366	char filename[MAX_BUF], buf[MAX_BUF], shop[MAX_BUF];
1367	int i;
1368
1369	if (flag && !*m->path)
1370	{
1371	LOG (llevError, "Tried to save map without path.\n");
1372	return -1;
1373	}
1374
1375	if (flag || (m->unique) || (m->templatemap))
1376	{
1377	if (!m->unique && !m->templatemap)
1378	{ /* flag is set */
1379	if (flag == 2)
1380	strcpy (filename, create_overlay_pathname (m->path));
1381	else
1382	strcpy (filename, create_pathname (m->path));
1383	}
1384	else
1385	strcpy (filename, m->path);
1386
1387	make_path_to_file (filename);
1388	}
1389	else
1390	{
1391	if (!m->tmpname)
1392	m->tmpname = tempnam_local (settings.tmpdir, NULL);
1393
1394	strcpy (filename, m->tmpname);
1395	}
1396
1397	LOG (llevDebug, "Saving map %s to %s\n", m->path, filename);
1398	m->in_memory = MAP_SAVING;
1399
1400	object_freezer freezer;
1401
1402	/* legacy */
1403	fprintf (freezer, "arch map\n");
1404	if (m->name)
1405	fprintf (freezer, "name %s\n", m->name);
1406	if (!flag)
1407	fprintf (freezer, "swap_time %d\n", m->swap_time);
1408	if (m->reset_timeout)
1409	fprintf (freezer, "reset_timeout %d\n", m->reset_timeout);
1410	if (m->fixed_resettime)
1411	fprintf (freezer, "fixed_resettime %d\n", m->fixed_resettime);
1412	/* we unfortunately have no idea if this is a value the creator set
1413	* or a difficulty value we generated when the map was first loaded
1414	*/
1415	if (m->difficulty)
1416	fprintf (freezer, "difficulty %d\n", m->difficulty);
1417	if (m->region)
1418	fprintf (freezer, "region %s\n", m->region->name);
1419	if (m->shopitems)
1420	{
1421	print_shop_string (m, shop);
1422	fprintf (freezer, "shopitems %s\n", shop);
1423	}
1424	if (m->shopgreed)
1425	fprintf (freezer, "shopgreed %f\n", m->shopgreed);
1426	#ifndef WIN32
1427	if (m->shopmin)
1428	fprintf (freezer, "shopmin %llu\n", m->shopmin);
1429	if (m->shopmax)
1430	fprintf (freezer, "shopmax %llu\n", m->shopmax);
1431	#else
1432	if (m->shopmin)
1433	fprintf (freezer, "shopmin %I64u\n", m->shopmin);
1434	if (m->shopmax)
1435	fprintf (freezer, "shopmax %I64u\n", m->shopmax);
1436	#endif
1437	if (m->shoprace)
1438	fprintf (freezer, "shoprace %s\n", m->shoprace);
1439	if (m->darkness)
1440	fprintf (freezer, "darkness %d\n", m->darkness);
1441	if (m->width)
1442	fprintf (freezer, "width %d\n", m->width);
1443	if (m->height)
1444	fprintf (freezer, "height %d\n", m->height);
1445	if (m->enter_x)
1446	fprintf (freezer, "enter_x %d\n", m->enter_x);
1447	if (m->enter_y)
1448	fprintf (freezer, "enter_y %d\n", m->enter_y);
1449	if (m->msg)
1450	fprintf (freezer, "msg\n%sendmsg\n", m->msg);
1451	if (m->maplore)
1452	fprintf (freezer, "maplore\n%sendmaplore\n", m->maplore);
1453	if (m->unique)
1454	fprintf (freezer, "unique %d\n", m->unique);
1455	if (m->templatemap)
1456	fprintf (freezer, "template %d\n", m->templatemap);
1457	if (m->outdoor)
1458	fprintf (freezer, "outdoor %d\n", m->outdoor);
1459	if (m->temp)
1460	fprintf (freezer, "temp %d\n", m->temp);
1461	if (m->pressure)
1462	fprintf (freezer, "pressure %d\n", m->pressure);
1463	if (m->humid)
1464	fprintf (freezer, "humid %d\n", m->humid);
1465	if (m->windspeed)
1466	fprintf (freezer, "windspeed %d\n", m->windspeed);
1467	if (m->winddir)
1468	fprintf (freezer, "winddir %d\n", m->winddir);
1469	if (m->sky)
1470	fprintf (freezer, "sky %d\n", m->sky);
1471	if (m->nosmooth)
1472	fprintf (freezer, "nosmooth %d\n", m->nosmooth);
1473
1474	/* Save any tiling information, except on overlays */
1475	if (flag != 2)
1476	for (i = 0; i < 4; i++)
1477	if (m->tile_path[i])
1478	fprintf (freezer, "tile_path_%d %s\n", i + 1, m->tile_path[i]);
1479
1480	freezer.put (m);
1481	fprintf (freezer, "end\n");
1482
1483	/* In the game save unique items in the different file, but
1484	* in the editor save them to the normal map file.
1485	* If unique map, save files in the proper destination (set by
1486	* player)
1487	*/
1488	if ((flag == 0 || flag == 2) && !m->unique && !m->templatemap)
1489	{
1490	object_freezer unique;
1491
1492	if (flag == 2)
1493	save_objects (m, freezer, unique, 2);
1494	else
1495	save_objects (m, freezer, unique, 0);
1496
1497	sprintf (buf, "%s.v00", create_items_path (m->path));
1498
1499	unique.save (buf);
1500	}
1501	else
1502	{ /* save same file when not playing, like in editor */
1503	save_objects (m, freezer, freezer, 0);
1504	}
1505
1506	freezer.save (filename);
1507
1508	return 0;
1509	}
1510
1511
1512	/*
1513	* Remove and free all objects in the inventory of the given object.
1514	* object.c ?
1515	*/
1516
1517	void
1518	clean_object (object *op)
1519	{
1520	object *tmp, *next;
1521
1522	for (tmp = op->inv; tmp; tmp = next)
1523	{
1524	next = tmp->below;
1525	clean_object (tmp);
1526	if (QUERY_FLAG (tmp, FLAG_IS_LINKED))
1527	remove_button_link (tmp);
1528	remove_ob (tmp);
1529	free_object (tmp);
1530	}
1531	}
1532
1533	/*
1534	* Remove and free all objects in the given map.
1535	*/
1536
1537	void
1538	free_all_objects (maptile *m)
1539	{
1540	int i, j;
1541	object *op;
1542
1543	for (i = 0; i < MAP_WIDTH (m); i++)
1544	for (j = 0; j < MAP_HEIGHT (m); j++)
1545	{
1546	object *previous_obj = NULL;
1547
1548	while ((op = GET_MAP_OB (m, i, j)) != NULL)
1549	{
1550	if (op == previous_obj)
1551	{
1552	LOG (llevDebug, "free_all_objects: Link error, bailing out.\n");
1553	break;
1554	}
1555	previous_obj = op;
1556	if (op->head != NULL)
1557	op = op->head;
1558
1559	/* If the map isn't in memory, free_object will remove and
1560	* free objects in op's inventory. So let it do the job.
1561	*/
1562	if (m->in_memory == MAP_IN_MEMORY)
1563	clean_object (op);
1564	remove_ob (op);
1565	free_object (op);
1566	}
1567	}
1568	}
1569
1570	/*
1571	* Frees everything allocated by the given maptileure.
1572	* don't free tmpname - our caller is left to do that
1573	*/
1574
1575	void
1576	free_map (maptile *m, int flag)
1577	{
1578	int i;
1579
1580	if (!m->in_memory)
1581	{
1582	LOG (llevError, "Trying to free freed map.\n");
1583	return;
1584	}
1585	if (flag && m->spaces)
1586	free_all_objects (m);
1587	if (m->name)
1588	FREE_AND_CLEAR (m->name);
1589	if (m->spaces)
1590	FREE_AND_CLEAR (m->spaces);
1591	if (m->msg)
1592	FREE_AND_CLEAR (m->msg);
1593	if (m->maplore)
1594	FREE_AND_CLEAR (m->maplore);
1595	if (m->shopitems)
1596	delete[]m->shopitems;
1597	m->shopitems = 0;
1598	if (m->shoprace)
1599	FREE_AND_CLEAR (m->shoprace);
1600	if (m->buttons)
1601	free_objectlinkpt (m->buttons);
1602	m->buttons = NULL;
1603	for (i = 0; i < 4; i++)
1604	{
1605	if (m->tile_path[i])
1606	FREE_AND_CLEAR (m->tile_path[i]);
1607	m->tile_map[i] = NULL;
1608	}
1609	m->in_memory = MAP_SWAPPED;
1610	}
1611
1612	/*
1613	* function: vanish maptile
1614	* m : pointer to maptile, if NULL no action
1615	* this deletes all the data on the map (freeing pointers)
1616	* and then removes this map from the global linked list of maps.
1617	*/
1618
1619	void
1620	delete_map (maptile *m)
1621	{
1622	maptile *tmp, *last;
1623	int i;
1624
1625	if (!m)
1626	return;
1627
1628	m->clear ();
1629
1630	if (m->in_memory == MAP_IN_MEMORY)
1631	{
1632	/* change to MAP_SAVING, even though we are not,
1633	* so that remove_ob doesn't do as much work.
1634	*/
1635	m->in_memory = MAP_SAVING;
1636	free_map (m, 1);
1637	}
1638	/* move this out of free_map, since tmpname can still be needed if
1639	* the map is swapped out.
1640	*/
1641	if (m->tmpname)
1642	{
1643	free (m->tmpname);
1644	m->tmpname = NULL;
1645	}
1646	last = NULL;
1647	/* We need to look through all the maps and see if any maps
1648	* are pointing at this one for tiling information. Since
1649	* tiling can be assymetric, we just can not look to see which
1650	* maps this map tiles with and clears those.
1651	*/
1652	for (tmp = first_map; tmp != NULL; tmp = tmp->next)
1653	{
1654	if (tmp->next == m)
1655	last = tmp;
1656
1657	/* This should hopefully get unrolled on a decent compiler */
1658	for (i = 0; i < 4; i++)
1659	if (tmp->tile_map[i] == m)
1660	tmp->tile_map[i] = NULL;
1661	}
1662
1663	/* If last is null, then this should be the first map in the list */
1664	if (!last)
1665	{
1666	if (m == first_map)
1667	first_map = m->next;
1668	else
1669	/* m->path is a static char, so should hopefully still have
1670	* some useful data in it.
1671	*/
1672	LOG (llevError, "delete_map: Unable to find map %s in list\n", m->path);
1673	}
1674	else
1675	last->next = m->next;
1676
1677	delete m;
1678	}
1679
1680
1681
1682	/*
1683	* Makes sure the given map is loaded and swapped in.
1684	* name is path name of the map.
1685	* flags meaning:
1686	* 0x1 (MAP_FLUSH): flush the map - always load from the map directory,
1687	* and don't do unique items or the like.
1688	* 0x2 (MAP_PLAYER_UNIQUE) - this is a unique map for each player.
1689	* dont do any more name translation on it.
1690	*
1691	* Returns a pointer to the given map.
1692	*/
1693
1694	maptile *
1695	ready_map_name (const char *name, int flags)
1696	{
1697	maptile *m;
1698
1699	if (!name)
1700	return (NULL);
1701
1702	/* Have we been at this level before? */
1703	m = has_been_loaded (name);
1704
1705	/* Map is good to go, so just return it */
1706	if (m && (m->in_memory == MAP_LOADING || m->in_memory == MAP_IN_MEMORY))
1707	{
1708	return m;
1709	}
1710
1711	/* unique maps always get loaded from their original location, and never
1712	* a temp location. Likewise, if map_flush is set, or we have never loaded
1713	* this map, load it now. I removed the reset checking from here -
1714	* it seems the probability of a player trying to enter a map that should
1715	* reset but hasn't yet is quite low, and removing that makes this function
1716	* a bit cleaner (and players probably shouldn't rely on exact timing for
1717	* resets in any case - if they really care, they should use the 'maps command.
1718	*/
1719	if ((flags & (MAP_FLUSH | MAP_PLAYER_UNIQUE)) || !m)
1720	{
1721
1722	/* first visit or time to reset */
1723	if (m)
1724	{
1725	clean_tmp_map (m); /* Doesn't make much difference */
1726	delete_map (m);
1727	}
1728
1729	/* create and load a map */
1730	if (flags & MAP_PLAYER_UNIQUE)
1731	LOG (llevDebug, "Trying to load map %s.\n", name);
1732	else
1733	LOG (llevDebug, "Trying to load map %s.\n", create_pathname (name));
1734
1735	//eval_pv ("$x = Event::time", 1);//D
1736	if (!(m = load_original_map (name, (flags & MAP_PLAYER_UNIQUE))))
1737	return (NULL);
1738	//eval_pv ("warn \"LOAD \", Event::time - $x", 1);//D
1739
1740	fix_auto_apply (m); /* Chests which open as default */
1741
1742	/* If a player unique map, no extra unique object file to load.
1743	* if from the editor, likewise.
1744	*/
1745	if (!(flags & (MAP_FLUSH | MAP_PLAYER_UNIQUE)))
1746	load_unique_objects (m);
1747
1748	if (!(flags & (MAP_FLUSH | MAP_PLAYER_UNIQUE | MAP_OVERLAY)))
1749	{
1750	m = load_overlay_map (name, m);
1751	if (m == NULL)
1752	return NULL;
1753	}
1754
1755	if (flags & MAP_PLAYER_UNIQUE)
1756	INVOKE_MAP (SWAPIN, m);
1757
1758	}
1759	else
1760	{
1761	/* If in this loop, we found a temporary map, so load it up. */
1762
1763	m = load_temporary_map (m);
1764	if (m == NULL)
1765	return NULL;
1766	load_unique_objects (m);
1767
1768	clean_tmp_map (m);
1769	m->in_memory = MAP_IN_MEMORY;
1770	/* tempnam() on sun systems (probably others) uses malloc
1771	* to allocated space for the string. Free it here.
1772	* In some cases, load_temporary_map above won't find the
1773	* temporary map, and so has reloaded a new map. If that
1774	* is the case, tmpname is now null
1775	*/
1776	if (m->tmpname)
1777	free (m->tmpname);
1778	m->tmpname = NULL;
1779	/* It's going to be saved anew anyway */
1780	}
1781
1782	/* Below here is stuff common to both first time loaded maps and
1783	* temp maps.
1784	*/
1785
1786	decay_objects (m); /* start the decay */
1787	/* In case other objects press some buttons down */
1788	update_buttons (m);
1789	if (m->outdoor)
1790	set_darkness_map (m);
1791	/* run the weather over this map */
1792	weather_effect (name);
1793	return m;
1794	}
1795
1796		932
1797	/*	933	/*
1798	* 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.
1799	* difficulty does not have a lot to do with character level,	935	* difficulty does not have a lot to do with character level,
1800	* 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.
…		…
1802	* 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
1803	* 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
1804	* have a difficulty set than using this function - human calculation	940	* have a difficulty set than using this function - human calculation
1805	* is much better than this functions guesswork.	941	* is much better than this functions guesswork.
1806	*/	942	*/
1807
1808	int	943	int
1809	calculate_difficulty (maptile *m)	944	maptile::estimate_difficulty () const
1810	{	945	{
1811	object *op;
1812	archetype *at;
1813	int x, y, i;
1814	long monster_cnt = 0;	946	long monster_cnt = 0;
1815	double avgexp = 0;	947	double avgexp = 0;
1816	sint64 total_exp = 0;	948	sint64 total_exp = 0;
1817		949
1818	if (MAP_DIFFICULTY (m))	950	for (mapspace *ms = spaces + size (); ms-- > spaces; )
1819	{	951	for (object *op = ms->bot; op; op = op->above)
1820	LOG (llevDebug, "Using stored map difficulty: %d\n", MAP_DIFFICULTY (m));
1821	return MAP_DIFFICULTY (m);
1822	}
1823
1824	for (x = 0; x < MAP_WIDTH (m); x++)
1825	for (y = 0; y < MAP_HEIGHT (m); y++)
1826	for (op = get_map_ob (m, x, y); op != NULL; op = op->above)
1827	{	952	{
1828	if (QUERY_FLAG (op, FLAG_MONSTER))	953	if (QUERY_FLAG (op, FLAG_MONSTER))
1829	{	954	{
1830	total_exp += op->stats.exp;	955	total_exp += op->stats.exp;
1831	monster_cnt++;	956	monster_cnt++;
1832	}	957	}
1833		958
1834	if (QUERY_FLAG (op, FLAG_GENERATOR))	959	if (QUERY_FLAG (op, FLAG_GENERATOR))
1835	{	960	{
1836	total_exp += op->stats.exp;	961	total_exp += op->stats.exp;
		962
1837	at = type_to_archetype (GENERATE_TYPE (op));	963	if (archetype *at = type_to_archetype (GENERATE_TYPE (op)))
1838
1839	if (at != NULL)
1840	total_exp += at->clone.stats.exp * 8;	964	total_exp += at->stats.exp * 8;
1841		965
1842	monster_cnt++;	966	monster_cnt++;
1843	}	967	}
1844	}	968	}
1845		969
1846	avgexp = (double) total_exp / monster_cnt;	970	avgexp = (double) total_exp / monster_cnt;
1847		971
1848	for (i = 1; i <= settings.max_level; i++)	972	for (int i = 1; i <= settings.max_level; i++)
1849	{
1850	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))
1851	{
1852	/* LOG(llevDebug, "Calculated difficulty for map: %s: %d\n", m->name, i); */
1853	return i;	974	return i;
1854	}
1855	}
1856		975
1857	return 1;	976	return 1;
1858	}
1859
1860	void
1861	clean_tmp_map (maptile *m)
1862	{
1863	if (m->tmpname == NULL)
1864	return;
1865	INVOKE_MAP (CLEAN, m);
1866	(void) unlink (m->tmpname);
1867	}
1868
1869	void
1870	free_all_maps (void)
1871	{
1872	int real_maps = 0;
1873
1874	while (first_map)
1875	{
1876	/* I think some of the callers above before it gets here set this to be
1877	* saving, but we still want to free this data
1878	*/
1879	if (first_map->in_memory == MAP_SAVING)
1880	first_map->in_memory = MAP_IN_MEMORY;
1881	delete_map (first_map);
1882	real_maps++;
1883	}
1884	LOG (llevDebug, "free_all_maps: Freed %d maps\n", real_maps);
1885	}	977	}
1886		978
1887	/* change_map_light() - used to change map light level (darkness)	979	/* change_map_light() - used to change map light level (darkness)
1888	* up or down. Returns true if successful. It should now be	980	* up or down. Returns true if successful. It should now be
1889	* possible to change a value by more than 1.	981	* possible to change a value by more than 1.
1890	* 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
1891	* to maps than los.	983	* to maps than los.
1892	* postive values make it darker, negative make it brighter	984	* postive values make it darker, negative make it brighter
1893	*/	985	*/
1894
1895	int	986	int
1896	change_map_light (maptile *m, int change)	987	maptile::change_map_light (int change)
1897	{	988	{
1898	int new_level = m->darkness + change;	989	int new_level = darkness + change;
1899		990
1900	/* Nothing to do */	991	/* Nothing to do */
1901	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))
1902	{
1903	return 0;	993	return 0;
1904	}
1905		994
1906	/* inform all players on the map */	995	/* inform all players on the map */
1907	if (change > 0)	996	if (change > 0)
1908	new_info_map (NDI_BLACK | NDI_UNIQUE, m, "It becomes darker.");	997	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes darker.");
1909	else	998	else
1910	new_info_map (NDI_BLACK | NDI_UNIQUE, m, "It becomes brighter.");	999	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes brighter.");
1911		1000
1912	/* Do extra checking. since m->darkness is a unsigned value,	1001	/* Do extra checking. since darkness is a unsigned value,
1913	* we need to be extra careful about negative values.	1002	* we need to be extra careful about negative values.
1914	* In general, the checks below are only needed if change	1003	* In general, the checks below are only needed if change
1915	* is not +/-1	1004	* is not +/-1
1916	*/	1005	*/
1917	if (new_level < 0)	1006	if (new_level < 0)
1918	m->darkness = 0;	1007	darkness = 0;
1919	else if (new_level >= MAX_DARKNESS)	1008	else if (new_level >= MAX_DARKNESS)
1920	m->darkness = MAX_DARKNESS;	1009	darkness = MAX_DARKNESS;
1921	else	1010	else
1922	m->darkness = new_level;	1011	darkness = new_level;
1923		1012
1924	/* All clients need to get re-updated for the change */	1013	/* All clients need to get re-updated for the change */
1925	update_all_map_los (m);	1014	update_all_map_los (this);
1926	return 1;	1015	return 1;
1927	}	1016	}
1928
1929		1017
1930	/*	1018	/*
1931	* This function updates various attributes about a specific space	1019	* This function updates various attributes about a specific space
1932	* on the map (what it looks like, whether it blocks magic,	1020	* on the map (what it looks like, whether it blocks magic,
1933	* has a living creatures, prevents people from passing	1021	* has a living creatures, prevents people from passing
1934	* through, etc)	1022	* through, etc)
1935	*/	1023	*/
1936	void	1024	void
1937	update_position (maptile *m, int x, int y)	1025	mapspace::update_ ()
1938	{	1026	{
1939	object *tmp, *last = NULL;	1027	object *tmp, *last = 0;
1940	uint8 flags = 0, oldflags, light = 0, anywhere = 0;	1028	uint8 flags = P_UPTODATE, light = 0, anywhere = 0;
1941	New_Face *top, *floor, *middle;
1942	object *top_obj, *floor_obj, *middle_obj;
1943	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;
1944		1030
1945	oldflags = GET_MAP_FLAGS (m, x, y);	1031	//object *middle = 0;
1946	if (!(oldflags & P_NEED_UPDATE))	1032	//object *top = 0;
1947	{	1033	//object *floor = 0;
1948	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
1949	return;	1035	object *&top = faces_obj[0] = 0;
1950	}	1036	object *&middle = faces_obj[1] = 0;
		1037	object *&floor = faces_obj[2] = 0;
1951		1038
1952	middle = blank_face;
1953	top = blank_face;
1954	floor = blank_face;
1955
1956	middle_obj = NULL;
1957	top_obj = NULL;
1958	floor_obj = NULL;
1959
1960	for (tmp = get_map_ob (m, x, y); tmp; last = tmp, tmp = tmp->above)	1039	for (tmp = bot; tmp; last = tmp, tmp = tmp->above)
1961	{	1040	{
1962
1963	/* This could be made additive I guess (two lights better than	1041	/* This could be made additive I guess (two lights better than
1964	* 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
1965	* light bulbs do not illuminate twice as far as once since	1043	* light bulbs do not illuminate twice as far as once since
1966	* it is a disapation factor that is squared (or is it cubed?)	1044	* it is a dissapation factor that is cubed.
1967	*/	1045	*/
1968	if (tmp->glow_radius > light)	1046	if (tmp->glow_radius > light)
1969	light = tmp->glow_radius;	1047	light = tmp->glow_radius;
1970		1048
1971	/* This call is needed in order to update objects the player	1049	/* This call is needed in order to update objects the player
…		…
1977	* Always put the player down for drawing.	1055	* Always put the player down for drawing.
1978	*/	1056	*/
1979	if (!tmp->invisible)	1057	if (!tmp->invisible)
1980	{	1058	{
1981	if ((tmp->type == PLAYER || QUERY_FLAG (tmp, FLAG_MONSTER)))	1059	if ((tmp->type == PLAYER || QUERY_FLAG (tmp, FLAG_MONSTER)))
1982	{
1983	top = tmp->face;
1984	top_obj = tmp;	1060	top = tmp;
1985	}
1986	else if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))	1061	else if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))
1987	{	1062	{
1988	/* 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,
1989	* so should not be visible, so we clear them.	1064	* so should not be visible, so we clear them.
1990	*/	1065	*/
1991	middle = blank_face;	1066	middle = 0;
1992	top = blank_face;	1067	top = 0;
1993	floor = tmp->face;
1994	floor_obj = tmp;	1068	floor = tmp;
1995	}	1069	}
1996	/* Flag anywhere have high priority */	1070	/* Flag anywhere have high priority */
1997	else if (QUERY_FLAG (tmp, FLAG_SEE_ANYWHERE))	1071	else if (QUERY_FLAG (tmp, FLAG_SEE_ANYWHERE))
1998	{	1072	{
1999	middle = tmp->face;
2000
2001	middle_obj = tmp;	1073	middle = tmp;
2002	anywhere = 1;	1074	anywhere = 1;
2003	}	1075	}
2004	/* Find the highest visible face around. If equal	1076	/* Find the highest visible face around. If equal
2005	* visibilities, we still want the one nearer to the	1077	* visibilities, we still want the one nearer to the
2006	* top	1078	* top
2007	*/	1079	*/
2008	else if (middle == blank_face || (tmp->face->visibility > middle->visibility && !anywhere))	1080	else if (!middle || (::faces [tmp->face].visibility > ::faces [middle->face].visibility && !anywhere))
2009	{
2010	middle = tmp->face;
2011	middle_obj = tmp;	1081	middle = tmp;
2012	}
2013	}	1082	}
		1083
2014	if (tmp == tmp->above)	1084	if (tmp == tmp->above)
2015	{	1085	{
2016	LOG (llevError, "Error in structure of map\n");	1086	LOG (llevError, "Error in structure of map\n");
2017	exit (-1);	1087	exit (-1);
2018	}	1088	}
2019		1089
2020	move_slow |= tmp->move_slow;	1090	move_slow |= tmp->move_slow;
2021	move_block |= tmp->move_block;	1091	move_block |= tmp->move_block;
2022	move_on |= tmp->move_on;	1092	move_on |= tmp->move_on;
2023	move_off |= tmp->move_off;	1093	move_off |= tmp->move_off;
2024	move_allow |= tmp->move_allow;	1094	move_allow |= tmp->move_allow;
2025		1095
2026	if (QUERY_FLAG (tmp, FLAG_ALIVE))
2027	flags |= P_IS_ALIVE;
2028	if (QUERY_FLAG (tmp, FLAG_NO_MAGIC))
2029	flags |= P_NO_MAGIC;
2030	if (QUERY_FLAG (tmp, FLAG_DAMNED))
2031	flags |= P_NO_CLERIC;
2032	if (tmp->type == SAFE_GROUND)
2033	flags |= P_SAFE;
2034
2035	if (QUERY_FLAG (tmp, FLAG_BLOCKSVIEW))	1096	if (QUERY_FLAG (tmp, FLAG_BLOCKSVIEW)) flags |= P_BLOCKSVIEW;
2036	flags |= P_BLOCKSVIEW;	1097	if (QUERY_FLAG (tmp, FLAG_NO_MAGIC)) flags |= P_NO_MAGIC;
2037	} /* for stack of objects */	1098	if (tmp->type == PLAYER) flags |= P_PLAYER;
2038		1099	if (tmp->type == SAFE_GROUND) flags |= P_SAFE;
2039	/* 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;
2040	* since we're already doing the work, we calculate them here.	1101	if (QUERY_FLAG (tmp, FLAG_DAMNED)) flags |= P_NO_CLERIC;
2041	* if they don't match, logic is broken someplace.
2042	*/
2043	if (((oldflags & ~(P_NEED_UPDATE | P_NO_ERROR)) != flags) && (!(oldflags & P_NO_ERROR)))
2044	{	1102	}
2045	LOG (llevDebug, "update_position: updated flags do not match old flags: %s (old=%d,new=%d) %x != %x\n",	1103
2046	m->path, x, y, (oldflags & ~P_NEED_UPDATE), flags);	1104	this->light = light;
2047	}	1105	this->flags_ = flags;
2048	SET_MAP_FLAGS (m, x, y, flags);	1106	this->move_block = move_block & ~move_allow;
2049	SET_MAP_MOVE_BLOCK (m, x, y, move_block & ~move_allow);	1107	this->move_on = move_on;
2050	SET_MAP_MOVE_ON (m, x, y, move_on);	1108	this->move_off = move_off;
2051	SET_MAP_MOVE_OFF (m, x, y, move_off);	1109	this->move_slow = move_slow;
2052	SET_MAP_MOVE_SLOW (m, x, y, move_slow);
2053		1110
2054	/* 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),
2055	* 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
2056	* this point.	1113	* this point.
2057	* middle contains the highest visibility face.	1114	* middle contains the highest visibility face.
…		…
2064	* middle face. This should not happen, as we already have the	1121	* middle face. This should not happen, as we already have the
2065	* else statement above so middle should not get set. OTOH, it	1122	* else statement above so middle should not get set. OTOH, it
2066	* 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.
2067	*/	1124	*/
2068	if (top == middle)	1125	if (top == middle)
2069	middle = blank_face;	1126	middle = 0;
2070		1127
2071	/* There are three posibilities at this point:	1128	/* There are three posibilities at this point:
2072	* 1) top face is set, need middle to be set.	1129	* 1) top face is set, need middle to be set.
2073	* 2) middle is set, need to set top.	1130	* 2) middle is set, need to set top.
2074	* 3) neither middle or top is set - need to set both.	1131	* 3) neither middle or top is set - need to set both.
…		…
2079	/* 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 */
2080	if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))	1137	if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))
2081	break;	1138	break;
2082		1139
2083	/* If two top faces are already set, quit processing */	1140	/* If two top faces are already set, quit processing */
2084	if ((top != blank_face) && (middle != blank_face))	1141	if (top && middle)
2085	break;	1142	break;
2086		1143
2087	/* Only show visible faces, unless its the editor - show all */	1144	/* Only show visible faces */
2088	if (!tmp->invisible || editor)	1145	if (!tmp->invisible)
2089	{	1146	{
2090	/* Fill in top if needed */	1147	/* Fill in top if needed */
2091	if (top == blank_face)	1148	if (!top)
2092	{	1149	{
2093	top = tmp->face;
2094	top_obj = tmp;	1150	top = tmp;
2095	if (top == middle)	1151	if (top == middle)
2096	middle = blank_face;	1152	middle = 0;
2097	}	1153	}
2098	else	1154	else
2099	{	1155	{
2100	/* top is already set - we should only get here if	1156	/* top is already set - we should only get here if
2101	* middle is not set	1157	* middle is not set
2102	*	1158	*
2103	* Set the middle face and break out, since there is nothing	1159	* Set the middle face and break out, since there is nothing
2104	* more to fill in. We don't check visiblity here, since	1160	* more to fill in. We don't check visiblity here, since
2105	*	1161	*
2106	*/	1162	*/
2107	if (tmp->face != top)	1163	if (tmp != top)
2108	{	1164	{
2109	middle = tmp->face;
2110	middle_obj = tmp;	1165	middle = tmp;
2111	break;	1166	break;
2112	}	1167	}
2113	}	1168	}
2114	}	1169	}
2115	}	1170	}
		1171
2116	if (middle == floor)	1172	if (middle == floor)
2117	middle = blank_face;	1173	middle = 0;
		1174
2118	if (top == middle)	1175	if (top == middle)
2119	middle = blank_face;	1176	middle = 0;
2120	SET_MAP_FACE (m, x, y, top, 0);
2121	if (top != blank_face)
2122	SET_MAP_FACE_OBJ (m, x, y, top_obj, 0);
2123	else
2124	SET_MAP_FACE_OBJ (m, x, y, NULL, 0);
2125	SET_MAP_FACE (m, x, y, middle, 1);
2126	if (middle != blank_face)
2127	SET_MAP_FACE_OBJ (m, x, y, middle_obj, 1);
2128	else
2129	SET_MAP_FACE_OBJ (m, x, y, NULL, 1);
2130	SET_MAP_FACE (m, x, y, floor, 2);
2131	if (floor != blank_face)
2132	SET_MAP_FACE_OBJ (m, x, y, floor_obj, 2);
2133	else
2134	SET_MAP_FACE_OBJ (m, x, y, NULL, 2);
2135	SET_MAP_LIGHT (m, x, y, light);
2136	}
2137		1177
2138		1178	#if 0
2139	void	1179	faces_obj [0] = top;
2140	set_map_reset_time (maptile *map)	1180	faces_obj [1] = middle;
2141	{	1181	faces_obj [2] = floor;
2142	int timeout;	1182	#endif
2143
2144	timeout = MAP_RESET_TIMEOUT (map);
2145	if (timeout <= 0)
2146	timeout = MAP_DEFAULTRESET;
2147	if (timeout >= MAP_MAXRESET)
2148	timeout = MAP_MAXRESET;
2149	MAP_WHEN_RESET (map) = seconds () + timeout;
2150	}	1183	}
2151		1184
2152	/* this updates the orig_map->tile_map[tile_num] value after loading	1185	uint64
2153	* the map. It also takes care of linking back the freshly loaded	1186	mapspace::volume () const
2154	* maps tile_map values if it tiles back to this one. It returns
2155	* the value of orig_map->tile_map[tile_num]. It really only does this
2156	* so that it is easier for calling functions to verify success.
2157	*/
2158
2159	static maptile *
2160	load_and_link_tiled_map (maptile *orig_map, int tile_num)
2161	{	1187	{
2162	int dest_tile = (tile_num + 2) % 4;	1188	uint64 vol = 0;
2163	char *path = path_combine_and_normalize (orig_map->path, orig_map->tile_path[tile_num]);
2164		1189
2165	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 ();
2166		1192
2167	/* need to do a strcmp here as the orig_map->path is not a shared string */	1193	return vol;
2168	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	}
2169	orig_map->tile_map[tile_num]->tile_map[dest_tile] = orig_map;
2170		1195
2171	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;
2172	}	1209	}
2173		1210
2174	/* this returns TRUE if the coordinates (x,y) are out of	1211	/* this returns TRUE if the coordinates (x,y) are out of
2175	* map m. This function also takes into account any	1212	* map m. This function also takes into account any
2176	* tiling considerations, loading adjacant maps as needed.	1213	* tiling considerations, loading adjacant maps as needed.
2177	* This is the function should always be used when it	1214	* This is the function should always be used when it
2178	* necessary to check for valid coordinates.	1215	* necessary to check for valid coordinates.
2179	* This function will recursively call itself for the	1216	* This function will recursively call itself for the
2180	* tiled maps.	1217	* tiled maps.
2181	*
2182	*
2183	*/	1218	*/
2184	int	1219	int
2185	out_of_map (maptile *m, int x, int y)	1220	out_of_map (maptile *m, int x, int y)
2186	{	1221	{
2187
2188	/* If we get passed a null map, this is obviously the	1222	/* If we get passed a null map, this is obviously the
2189	* case. This generally shouldn't happen, but if the	1223	* case. This generally shouldn't happen, but if the
2190	* map loads fail below, it could happen.	1224	* map loads fail below, it could happen.
2191	*/	1225	*/
2192	if (!m)	1226	if (!m)
2193	return 0;	1227	return 0;
2194		1228
2195	if (x < 0)	1229	if (x < 0)
2196	{	1230	{
2197	if (!m->tile_path[3])	1231	if (!m->tile_available (3))
2198	return 1;	1232	return 1;
2199	if (!m->tile_map[3] || m->tile_map[3]->in_memory != MAP_IN_MEMORY)	1233
2200	{
2201	load_and_link_tiled_map (m, 3);
2202	}
2203	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);
2204	}
2205	if (x >= MAP_WIDTH (m))
2206	{	1235	}
2207	if (!m->tile_path[1])	1236
		1237	if (x >= m->width)
		1238	{
		1239	if (!m->tile_available (1))
2208	return 1;	1240	return 1;
2209	if (!m->tile_map[1] || m->tile_map[1]->in_memory != MAP_IN_MEMORY)	1241
2210	{
2211	load_and_link_tiled_map (m, 1);
2212	}
2213	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);
2214	}	1243	}
		1244
2215	if (y < 0)	1245	if (y < 0)
2216	{	1246	{
2217	if (!m->tile_path[0])	1247	if (!m->tile_available (0))
2218	return 1;	1248	return 1;
2219	if (!m->tile_map[0] || m->tile_map[0]->in_memory != MAP_IN_MEMORY)	1249
2220	{
2221	load_and_link_tiled_map (m, 0);
2222	}
2223	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);
2224	}
2225	if (y >= MAP_HEIGHT (m))
2226	{	1251	}
2227	if (!m->tile_path[2])	1252
		1253	if (y >= m->height)
		1254	{
		1255	if (!m->tile_available (2))
2228	return 1;	1256	return 1;
2229	if (!m->tile_map[2] || m->tile_map[2]->in_memory != MAP_IN_MEMORY)	1257
2230	{
2231	load_and_link_tiled_map (m, 2);
2232	}
2233	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);
2234	}	1259	}
2235		1260
2236	/* Simple case - coordinates are within this local	1261	/* Simple case - coordinates are within this local
2237	* map.	1262	* map.
2238	*/	1263	*/
…		…
2241		1266
2242	/* This is basically the same as out_of_map above, but	1267	/* This is basically the same as out_of_map above, but
2243	* instead we return NULL if no map is valid (coordinates	1268	* instead we return NULL if no map is valid (coordinates
2244	* out of bounds and no tiled map), otherwise it returns	1269	* out of bounds and no tiled map), otherwise it returns
2245	* the map as that the coordinates are really on, and	1270	* the map as that the coordinates are really on, and
2246	* updates x and y to be the localized coordinates.	1271	* updates x and y to be the localised coordinates.
2247	* Using this is more efficient of calling out_of_map	1272	* Using this is more efficient of calling out_of_map
2248	* and then figuring out what the real map is	1273	* and then figuring out what the real map is
2249	*/	1274	*/
2250	maptile *	1275	maptile *
2251	get_map_from_coord (maptile *m, sint16 * x, sint16 * y)	1276	maptile::xy_find (sint16 &x, sint16 &y)
2252	{	1277	{
2253
2254	if (*x < 0)	1278	if (x < 0)
2255	{	1279	{
2256	if (!m->tile_path[3])	1280	if (!tile_available (3))
2257	return NULL;	1281	return 0;
2258	if (!m->tile_map[3] || m->tile_map[3]->in_memory != MAP_IN_MEMORY)
2259	load_and_link_tiled_map (m, 3);
2260		1282
2261	*x += MAP_WIDTH (m->tile_map[3]);	1283	x += tile_map[3]->width;
2262	return (get_map_from_coord (m->tile_map[3], x, y));	1284	return tile_map[3]->xy_find (x, y);
2263	}
2264	if (*x >= MAP_WIDTH (m))
2265	{	1285	}
2266	if (!m->tile_path[1])	1286
		1287	if (x >= width)
		1288	{
		1289	if (!tile_available (1))
2267	return NULL;	1290	return 0;
2268	if (!m->tile_map[1] || m->tile_map[1]->in_memory != MAP_IN_MEMORY)
2269	load_and_link_tiled_map (m, 1);
2270		1291
2271	*x -= MAP_WIDTH (m);	1292	x -= width;
2272	return (get_map_from_coord (m->tile_map[1], x, y));	1293	return tile_map[1]->xy_find (x, y);
2273	}	1294	}
		1295
2274	if (*y < 0)	1296	if (y < 0)
2275	{	1297	{
2276	if (!m->tile_path[0])	1298	if (!tile_available (0))
2277	return NULL;	1299	return 0;
2278	if (!m->tile_map[0] || m->tile_map[0]->in_memory != MAP_IN_MEMORY)
2279	load_and_link_tiled_map (m, 0);
2280		1300
2281	*y += MAP_HEIGHT (m->tile_map[0]);	1301	y += tile_map[0]->height;
2282	return (get_map_from_coord (m->tile_map[0], x, y));	1302	return tile_map[0]->xy_find (x, y);
2283	}
2284	if (*y >= MAP_HEIGHT (m))
2285	{	1303	}
2286	if (!m->tile_path[2])	1304
		1305	if (y >= height)
		1306	{
		1307	if (!tile_available (2))
2287	return NULL;	1308	return 0;
2288	if (!m->tile_map[2] || m->tile_map[2]->in_memory != MAP_IN_MEMORY)
2289	load_and_link_tiled_map (m, 2);
2290		1309
2291	*y -= MAP_HEIGHT (m);	1310	y -= height;
2292	return (get_map_from_coord (m->tile_map[2], x, y));	1311	return tile_map[2]->xy_find (x, y);
2293	}	1312	}
2294		1313
2295	/* Simple case - coordinates are within this local	1314	/* Simple case - coordinates are within this local
2296	* map.	1315	* map.
2297	*/	1316	*/
2298
2299	return m;	1317	return this;
2300	}	1318	}
2301		1319
2302	/**	1320	/**
2303	* 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
2304	* map1 to map2 in dx/dy.	1322	* map1 to map2 in dx/dy.
2305	*/	1323	*/
2306	static int	1324	int
2307	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)
2308	{	1326	{
2309	if (!map1 || !map2)	1327	if (!map1 || !map2)
2310	return 0;	1328	return 0;
2311		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!)
2312	if (map1 == map2)	1332	if (map1 == map2)
2313	{	1333	{
2314	*dx = 0;	1334	*dx = 0;
2315	*dy = 0;	1335	*dy = 0;
2316
2317	}	1336	}
2318	else if (map1->tile_map[0] == map2)	1337	else if (map1->tile_map[0] == map2)
2319	{ /* up */	1338	{ /* up */
2320	*dx = 0;	1339	*dx = 0;
2321	*dy = -MAP_HEIGHT (map2);	1340	*dy = -map2->height;
2322	}	1341	}
2323	else if (map1->tile_map[1] == map2)	1342	else if (map1->tile_map[1] == map2)
2324	{ /* right */	1343	{ /* right */
2325	*dx = MAP_WIDTH (map1);	1344	*dx = map1->width;
2326	*dy = 0;	1345	*dy = 0;
2327	}	1346	}
2328	else if (map1->tile_map[2] == map2)	1347	else if (map1->tile_map[2] == map2)
2329	{ /* down */	1348	{ /* down */
2330	*dx = 0;	1349	*dx = 0;
2331	*dy = MAP_HEIGHT (map1);	1350	*dy = map1->height;
2332	}	1351	}
2333	else if (map1->tile_map[3] == map2)	1352	else if (map1->tile_map[3] == map2)
2334	{ /* left */	1353	{ /* left */
2335	*dx = -MAP_WIDTH (map2);	1354	*dx = -map2->width;
2336	*dy = 0;	1355	*dy = 0;
2337
2338	}	1356	}
2339	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)
2340	{ /* up right */	1358	{ /* up right */
2341	*dx = MAP_WIDTH (map1->tile_map[0]);	1359	*dx = map1->tile_map[0]->width;
2342	*dy = -MAP_HEIGHT (map1->tile_map[0]);	1360	*dy = -map1->tile_map[0]->height;
2343	}	1361	}
2344	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)
2345	{ /* up left */	1363	{ /* up left */
2346	*dx = -MAP_WIDTH (map2);	1364	*dx = -map2->width;
2347	*dy = -MAP_HEIGHT (map1->tile_map[0]);	1365	*dy = -map1->tile_map[0]->height;
2348	}	1366	}
2349	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)
2350	{ /* right up */	1368	{ /* right up */
2351	*dx = MAP_WIDTH (map1);	1369	*dx = map1->width;
2352	*dy = -MAP_HEIGHT (map2);	1370	*dy = -map2->height;
2353	}	1371	}
2354	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)
2355	{ /* right down */	1373	{ /* right down */
2356	*dx = MAP_WIDTH (map1);	1374	*dx = map1->width;
2357	*dy = MAP_HEIGHT (map1->tile_map[1]);	1375	*dy = map1->tile_map[1]->height;
2358	}	1376	}
2359	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)
2360	{ /* down right */	1378	{ /* down right */
2361	*dx = MAP_WIDTH (map1->tile_map[2]);	1379	*dx = map1->tile_map[2]->width;
2362	*dy = MAP_HEIGHT (map1);	1380	*dy = map1->height;
2363	}	1381	}
2364	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)
2365	{ /* down left */	1383	{ /* down left */
2366	*dx = -MAP_WIDTH (map2);	1384	*dx = -map2->width;
2367	*dy = MAP_HEIGHT (map1);	1385	*dy = map1->height;
2368	}	1386	}
2369	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)
2370	{ /* left up */	1388	{ /* left up */
2371	*dx = -MAP_WIDTH (map1->tile_map[3]);	1389	*dx = -map1->tile_map[3]->width;
2372	*dy = -MAP_HEIGHT (map2);	1390	*dy = -map2->height;
2373	}	1391	}
2374	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)
2375	{ /* left down */	1393	{ /* left down */
2376	*dx = -MAP_WIDTH (map1->tile_map[3]);	1394	*dx = -map1->tile_map[3]->width;
2377	*dy = MAP_HEIGHT (map1->tile_map[3]);	1395	*dy = map1->tile_map[3]->height;
2378
2379	}	1396	}
2380	else	1397	else
2381	{ /* not "adjacent" enough */
2382	return 0;	1398	return 0;
2383	}
2384		1399
2385	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);
2386	}	1418	}
2387		1419
2388	/* From map.c	1420	/* From map.c
2389	* This is used by get_player to determine where the other	1421	* This is used by get_player to determine where the other
2390	* creature is. get_rangevector takes into account map tiling,	1422	* creature is. get_rangevector takes into account map tiling,
2391	* 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
2392	* righte value. distance_x/y are distance away, which	1424	* righte value. distance_x/y are distance away, which
2393	* can be negativbe. direction is the crossfire direction scheme	1425	* can be negative. direction is the crossfire direction scheme
2394	* that the creature should head. part is the part of the	1426	* that the creature should head. part is the part of the
2395	* monster that is closest.	1427	* monster that is closest.
2396	*	1428	*
2397	* get_rangevector looks at op1 and op2, and fills in the	1429	* get_rangevector looks at op1 and op2, and fills in the
2398	* structure for op1 to get to op2.	1430	* structure for op1 to get to op2.
…		…
2403	* be unexpected	1435	* be unexpected
2404	*	1436	*
2405	* currently, the only flag supported (0x1) is don't translate for	1437	* currently, the only flag supported (0x1) is don't translate for
2406	* closest body part of 'op1'	1438	* closest body part of 'op1'
2407	*/	1439	*/
2408
2409	void	1440	void
2410	get_rangevector (object *op1, object *op2, rv_vector * retval, int flags)	1441	get_rangevector (object *op1, object *op2, rv_vector * retval, int flags)
2411	{	1442	{
2412	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))
2413	{	1444	{
2414	/* be conservative and fill in _some_ data */	1445	/* be conservative and fill in _some_ data */
2415	retval->distance = 100000;	1446	retval->distance = 10000;
2416	retval->distance_x = 32767;	1447	retval->distance_x = 10000;
2417	retval->distance_y = 32767;	1448	retval->distance_y = 10000;
2418	retval->direction = 0;	1449	retval->direction = 0;
2419	retval->part = 0;	1450	retval->part = 0;
2420	}	1451	}
2421	else	1452	else
2422	{	1453	{
…		…
2427		1458
2428	best = op1;	1459	best = op1;
2429	/* If this is multipart, find the closest part now */	1460	/* If this is multipart, find the closest part now */
2430	if (!(flags & 0x1) && op1->more)	1461	if (!(flags & 0x1) && op1->more)
2431	{	1462	{
2432	object *tmp;
2433	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;
2434		1464
2435	/* 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
2436	* distance instead of doing all that work above again	1466	* distance instead of doing all that work above again
2437	* since the distance fields we set above are positive in the	1467	* since the distance fields we set above are positive in the
2438	* same axis as is used for multipart objects, the simply arithmetic	1468	* same axis as is used for multipart objects, the simply arithmetic
2439	* below works.	1469	* below works.
2440	*/	1470	*/
2441	for (tmp = op1->more; tmp != NULL; tmp = tmp->more)	1471	for (object *tmp = op1->more; tmp; tmp = tmp->more)
2442	{	1472	{
2443	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) +
2444	(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);
2445	if (tmpi < best_distance)	1475	if (tmpi < best_distance)
2446	{	1476	{
2447	best_distance = tmpi;	1477	best_distance = tmpi;
2448	best = tmp;	1478	best = tmp;
2449	}	1479	}
2450	}	1480	}
		1481
2451	if (best != op1)	1482	if (best != op1)
2452	{	1483	{
2453	retval->distance_x += op1->x - best->x;	1484	retval->distance_x += op1->x - best->x;
2454	retval->distance_y += op1->y - best->y;	1485	retval->distance_y += op1->y - best->y;
2455	}	1486	}
2456	}	1487	}
		1488
2457	retval->part = best;	1489	retval->part = best;
2458	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));
2459	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);	1491	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);
2460	}	1492	}
2461	}	1493	}
2462		1494
2463	/* 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
…		…
2468	* 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
2469	* 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
2470	* 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
2471	* field of the rv_vector is set to NULL.	1503	* field of the rv_vector is set to NULL.
2472	*/	1504	*/
2473
2474	void	1505	void
2475	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)
2476	{	1507	{
2477	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))
2478	{	1509	{
2479	/* be conservative and fill in _some_ data */	1510	/* be conservative and fill in _some_ data */
2480	retval->distance = 100000;	1511	retval->distance = 100000;
…		…
2487	{	1518	{
2488	retval->distance_x += op2->x - x;	1519	retval->distance_x += op2->x - x;
2489	retval->distance_y += op2->y - y;	1520	retval->distance_y += op2->y - y;
2490		1521
2491	retval->part = NULL;	1522	retval->part = NULL;
2492	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);
2493	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);	1524	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);
2494	}	1525	}
2495	}	1526	}
2496		1527
2497	/* 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
2498	* (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
2499	* 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
2500	* to op1, this will still return false.	1531	* to op1, this will still return false.
2501	* 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
2502	* and efficient. This could probably be a macro.	1533	* and efficient. This could probably be a macro.
2503	* MSW 2001-08-05	1534	* MSW 2001-08-05
2504	*/	1535	*/
…		…
2507	{	1538	{
2508	int dx, dy;	1539	int dx, dy;
2509		1540
2510	return adjacent_map (op1->map, op2->map, &dx, &dy);	1541	return adjacent_map (op1->map, op2->map, &dx, &dy);
2511	}	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->observe->map == this)
		1602	if (client *ns = pl->ns)
		1603	{
		1604	int dx = x - pl->ob->x;
		1605	int dy = y - pl->ob->y;
		1606
		1607	int distance = idistance (dx, dy);
		1608
		1609	if (distance <= MAX_SOUND_DISTANCE)
		1610	ns->play_sound (sound, dx, dy);
		1611	}
		1612	}
		1613

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