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Comparing deliantra/server/common/map.C (file contents):
Revision 1.31 by root, Sat Sep 16 22:24:12 2006 UTC vs.
Revision 1.118 by root, Fri Aug 24 00:40:31 2007 UTC

1	/*	1	/*
2	CrossFire, A Multiplayer game for X-windows	2	* This file is part of Crossfire TRT, the Roguelike Realtime MORPG.
3		3	*
		4	* Copyright (©) 2005,2006,2007 Marc Alexander Lehmann / Robin Redeker / the Crossfire TRT team
4	Copyright (C) 2001-2003 Mark Wedel & Crossfire Development Team	5	* Copyright (©) 2001-2003,2007 Mark Wedel & Crossfire Development Team
5	Copyright (C) 1992 Frank Tore Johansen	6	* Copyright (©) 1992,2007 Frank Tore Johansen
6		7	*
7	This program is free software; you can redistribute it and/or modify	8	* Crossfire TRT is free software: you can redistribute it and/or modify
8	it under the terms of the GNU General Public License as published by	9	* it under the terms of the GNU General Public License as published by
9	the Free Software Foundation; either version 2 of the License, or	10	* the Free Software Foundation, either version 3 of the License, or
10	(at your option) any later version.	11	* (at your option) any later version.
11		12	*
12	This program is distributed in the hope that it will be useful,	13	* This program is distributed in the hope that it will be useful,
13	but WITHOUT ANY WARRANTY; without even the implied warranty of	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15	GNU General Public License for more details.	16	* GNU General Public License for more details.
16		17	*
17	You should have received a copy of the GNU General Public License	18	* You should have received a copy of the GNU General Public License
18	along with this program; if not, write to the Free Software	19	* along with this program. If not, see <http://www.gnu.org/licenses/>.
19	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	20	*
20
21	The authors can be reached via e-mail at <crossfire@schmorp.de>	21	* The authors can be reached via e-mail to <crossfire@schmorp.de>
22	*/	22	*/
23		23
24
25	#include <global.h>
26	#include <funcpoint.h>
27
28	#include <loader.h>
29	#ifndef WIN32 /* ---win32 exclude header */
30	# include <unistd.h>	24	#include <unistd.h>
31	#endif /* win32 */	25
		26	#include "global.h"
		27	#include "funcpoint.h"
		28
		29	#include "loader.h"
32		30
33	#include "path.h"	31	#include "path.h"
34
35
36	extern int nrofallocobjects, nroffreeobjects;
37
38	/*
39	* Returns the maptile which has a name matching the given argument.
40	* return NULL if no match is found.
41	*/
42
43	maptile *
44	has_been_loaded (const char *name)
45	{
46	maptile *map;
47
48	if (!name || !*name)
49	return 0;
50	for (map = first_map; map; map = map->next)
51	if (!strcmp (name, map->path))
52	break;
53	return (map);
54	}
55
56	/*
57	* This makes a path absolute outside the world of Crossfire.
58	* In other words, it prepends LIBDIR/MAPDIR/ to the given path
59	* and returns the pointer to a static array containing the result.
60	* it really should be called create_mapname
61	*/
62
63	const char *
64	create_pathname (const char *name)
65	{
66	static char buf[MAX_BUF];
67
68	/* Why? having extra / doesn't confuse unix anyplace? Dependancies
69	* someplace else in the code? msw 2-17-97
70	*/
71	if (*name == '/')
72	sprintf (buf, "%s/%s%s", settings.datadir, settings.mapdir, name);
73	else
74	sprintf (buf, "%s/%s/%s", settings.datadir, settings.mapdir, name);
75	return (buf);
76	}
77
78	/*
79	* same as create_pathname, but for the overlay maps.
80	*/
81
82	const char *
83	create_overlay_pathname (const char *name)
84	{
85	static char buf[MAX_BUF];
86
87	/* Why? having extra / doesn't confuse unix anyplace? Dependancies
88	* someplace else in the code? msw 2-17-97
89	*/
90	if (*name == '/')
91	sprintf (buf, "%s/%s%s", settings.localdir, settings.mapdir, name);
92	else
93	sprintf (buf, "%s/%s/%s", settings.localdir, settings.mapdir, name);
94	return (buf);
95	}
96
97	/*
98	* same as create_pathname, but for the template maps.
99	*/
100
101	const char *
102	create_template_pathname (const char *name)
103	{
104	static char buf[MAX_BUF];
105
106	/* Why? having extra / doesn't confuse unix anyplace? Dependancies
107	* someplace else in the code? msw 2-17-97
108	*/
109	if (*name == '/')
110	sprintf (buf, "%s/%s%s", settings.localdir, settings.templatedir, name);
111	else
112	sprintf (buf, "%s/%s/%s", settings.localdir, settings.templatedir, name);
113	return (buf);
114	}
115
116	/*
117	* This makes absolute path to the itemfile where unique objects
118	* will be saved. Converts '/' to '@'. I think it's essier maintain
119	* files than full directory structure, but if this is problem it can
120	* be changed.
121	*/
122	static const char *
123	create_items_path (const char *s)
124	{
125	static char buf[MAX_BUF];
126	char *t;
127
128	if (*s == '/')
129	s++;
130
131	sprintf (buf, "%s/%s/", settings.localdir, settings.uniquedir);
132
133	for (t = buf + strlen (buf); *s; s++, t++)
134	if (*s == '/')
135	*t = '@';
136	else
137	*t = *s;
138	*t = 0;
139	return (buf);
140	}
141
142
143	/*
144	* This function checks if a file with the given path exists.
145	* -1 is returned if it fails, otherwise the mode of the file
146	* is returned.
147	* It tries out all the compression suffixes listed in the uncomp[] array.
148	*
149	* If prepend_dir is set, then we call create_pathname (which prepends
150	* libdir & mapdir). Otherwise, we assume the name given is fully
151	* complete.
152	* Only the editor actually cares about the writablity of this -
153	* the rest of the code only cares that the file is readable.
154	* when the editor goes away, the call to stat should probably be
155	* replaced by an access instead (similar to the windows one, but
156	* that seems to be missing the prepend_dir processing
157	*/
158
159	int
160	check_path (const char *name, int prepend_dir)
161	{
162	char buf[MAX_BUF];
163
164	#ifndef WIN32
165	char *endbuf;
166	struct stat statbuf;
167	int mode = 0;
168	#endif
169
170	if (prepend_dir)
171	strcpy (buf, create_pathname (name));
172	else
173	strcpy (buf, name);
174	#ifdef WIN32 /* ***win32: check this sucker in windows style. */
175	return (_access (buf, 0));
176	#else
177
178	/* old method (strchr(buf, '\0')) seemd very odd to me -
179	* this method should be equivalant and is clearer.
180	* Can not use strcat because we need to cycle through
181	* all the names.
182	*/
183	endbuf = buf + strlen (buf);
184
185	if (stat (buf, &statbuf))
186	return -1;
187	if (!S_ISREG (statbuf.st_mode))
188	return (-1);
189
190	if (((statbuf.st_mode & S_IRGRP) && getegid () == statbuf.st_gid) ||
191	((statbuf.st_mode & S_IRUSR) && geteuid () == statbuf.st_uid) || (statbuf.st_mode & S_IROTH))
192	mode |= 4;
193
194	if ((statbuf.st_mode & S_IWGRP && getegid () == statbuf.st_gid) ||
195	(statbuf.st_mode & S_IWUSR && geteuid () == statbuf.st_uid) || (statbuf.st_mode & S_IWOTH))
196	mode |= 2;
197
198	return (mode);
199	#endif
200	}
201
202	/*
203	* Prints out debug-information about a map.
204	* Dumping these at llevError doesn't seem right, but is
205	* necessary to make sure the information is in fact logged.
206	*/
207
208	void
209	dump_map (const maptile *m)
210	{
211	LOG (llevError, "Map %s status: %d.\n", m->path, m->in_memory);
212	LOG (llevError, "Size: %dx%d Start: %d,%d\n", MAP_WIDTH (m), MAP_HEIGHT (m), MAP_ENTER_X (m), MAP_ENTER_Y (m));
213
214	if (m->msg != NULL)
215	LOG (llevError, "Message:\n%s", m->msg);
216
217	if (m->maplore != NULL)
218	LOG (llevError, "Lore:\n%s", m->maplore);
219
220	if (m->tmpname != NULL)
221	LOG (llevError, "Tmpname: %s\n", m->tmpname);
222
223	LOG (llevError, "Difficulty: %d\n", m->difficulty);
224	LOG (llevError, "Darkness: %d\n", m->darkness);
225	}
226
227	/*
228	* Prints out debug-information about all maps.
229	* This basically just goes through all the maps and calls
230	* dump_map on each one.
231	*/
232
233	void
234	dump_all_maps (void)
235	{
236	maptile *m;
237
238	for (m = first_map; m != NULL; m = m->next)
239	{
240	dump_map (m);
241	}
242	}
243		32
244	/* This rolls up wall, blocks_magic, blocks_view, etc, all into	33	/* This rolls up wall, blocks_magic, blocks_view, etc, all into
245	* one function that just returns a P_.. value (see map.h)	34	* one function that just returns a P_.. value (see map.h)
246	* it will also do map translation for tiled maps, returning	35	* it will also do map translation for tiled maps, returning
247	* new values into newmap, nx, and ny. Any and all of those	36	* new values into newmap, nx, and ny. Any and all of those
…		…
250	* is needed. The case of not passing values is if we're just	39	* is needed. The case of not passing values is if we're just
251	* checking for the existence of something on those spaces, but	40	* checking for the existence of something on those spaces, but
252	* don't expect to insert/remove anything from those spaces.	41	* don't expect to insert/remove anything from those spaces.
253	*/	42	*/
254	int	43	int
255	get_map_flags (maptile *oldmap, maptile **newmap, sint16 x, sint16 y, sint16 * nx, sint16 * ny)	44	get_map_flags (maptile *oldmap, maptile **newmap, sint16 x, sint16 y, sint16 *nx, sint16 *ny)
256	{	45	{
257	sint16 newx, newy;	46	sint16 newx = x;
258	int retval = 0;	47	sint16 newy = y;
259	maptile *mp;
260		48
261	if (out_of_map (oldmap, x, y))	49	maptile *mp = get_map_from_coord (oldmap, &newx, &newy);
		50
		51	if (!mp)
262	return P_OUT_OF_MAP;	52	return P_OUT_OF_MAP;
263	newx = x;
264	newy = y;
265	mp = get_map_from_coord (oldmap, &newx, &newy);
266	if (mp != oldmap)
267	retval |= P_NEW_MAP;
268	if (newmap)
269	*newmap = mp;
270	if (nx)
271	*nx = newx;
272	if (ny)
273	*ny = newy;
274		53
275	retval |= mp->spaces[newx + mp->width * newy].flags;	54	if (newmap) *newmap = mp;
		55	if (nx) *nx = newx;
		56	if (ny) *ny = newy;
276		57
277	return retval;	58	return mp->at (newx, newy).flags () | (mp != oldmap ? P_NEW_MAP : 0);
278	}	59	}
279
280		60
281	/*	61	/*
282	* Returns true if the given coordinate is blocked except by the	62	* Returns true if the given coordinate is blocked except by the
283	* object passed is not blocking. This is used with	63	* object passed is not blocking. This is used with
284	* multipart monsters - if we want to see if a 2x2 monster	64	* multipart monsters - if we want to see if a 2x2 monster
…		…
288	* monster.	68	* monster.
289	* m, x, y are the target map/coordinates - needed for map tiling.	69	* m, x, y are the target map/coordinates - needed for map tiling.
290	* the coordinates & map passed in should have been updated for tiling	70	* the coordinates & map passed in should have been updated for tiling
291	* by the caller.	71	* by the caller.
292	*/	72	*/
293
294	int	73	int
295	blocked_link (object *ob, maptile *m, int sx, int sy)	74	blocked_link (object *ob, maptile *m, int sx, int sy)
296	{	75	{
297	object *tmp;	76	object *tmp;
298	int mflags, blocked;	77	int mflags, blocked;
…		…
307	}	86	}
308		87
309	/* 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
310	* directly.	89	* directly.
311	*/	90	*/
312	mflags = m->spaces[sx + m->width * sy].flags;	91	mflags = m->at (sx, sy).flags ();
313		92
314	blocked = GET_MAP_MOVE_BLOCK (m, sx, sy);	93	blocked = GET_MAP_MOVE_BLOCK (m, sx, sy);
315		94
316	/* If space is currently not blocked by anything, no need to	95	/* If space is currently not blocked by anything, no need to
317	* go further. Not true for players - all sorts of special	96	* go further. Not true for players - all sorts of special
…		…
328	* let the player through (inventory checkers for example)	107	* let the player through (inventory checkers for example)
329	*/	108	*/
330	if (!(mflags & P_IS_ALIVE) && !OB_TYPE_MOVE_BLOCK (ob, blocked))	109	if (!(mflags & P_IS_ALIVE) && !OB_TYPE_MOVE_BLOCK (ob, blocked))
331	return 0;	110	return 0;
332		111
333	if (ob->head != NULL)
334	ob = ob->head;	112	ob = ob->head_ ();
335		113
336	/* 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
337	* 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
338	* true. If we get through the entire stack, that must mean	116	* true. If we get through the entire stack, that must mean
339	* ob is blocking it, so return 0.	117	* ob is blocking it, so return 0.
340	*/	118	*/
341	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)
342	{	120	{
343		121
344	/* This must be before the checks below. Code for inventory checkers. */	122	/* This must be before the checks below. Code for inventory checkers. */
345	if (tmp->type == CHECK_INV && OB_MOVE_BLOCK (ob, tmp))	123	if (tmp->type == CHECK_INV && OB_MOVE_BLOCK (ob, tmp))
346	{	124	{
…		…
369	else	147	else
370	{	148	{
371	/* Broke apart a big nasty if into several here to make	149	/* Broke apart a big nasty if into several here to make
372	* this more readable. first check - if the space blocks	150	* this more readable. first check - if the space blocks
373	* movement, can't move here.	151	* movement, can't move here.
374	* 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
375	* hidden dm	153	* hidden dm
376	*/	154	*/
377	if (OB_MOVE_BLOCK (ob, tmp))	155	if (OB_MOVE_BLOCK (ob, tmp))
378	return 1;	156	return 1;
379	if (QUERY_FLAG (tmp, FLAG_ALIVE) && tmp->head != ob && tmp != ob &&	157
380	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))
381	return 1;	163	return 1;
382	}	164	}
383		165
384	}	166	}
385	return 0;	167	return 0;
386	}	168	}
387
388		169
389	/*	170	/*
390	* 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.
391	* This is meant for multi space objects - for single space objecs,	172	* This is meant for multi space objects - for single space objecs,
392	* just calling get_map_blocked and checking that against movement type	173	* just calling get_map_blocked and checking that against movement type
…		…
410	*	191	*
411	* Note this used to be arch_blocked, but with new movement	192	* Note this used to be arch_blocked, but with new movement
412	* 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
413	* against the move_block values.	194	* against the move_block values.
414	*/	195	*/
415
416	int	196	int
417	ob_blocked (const object *ob, maptile *m, sint16 x, sint16 y)	197	ob_blocked (const object *ob, maptile *m, sint16 x, sint16 y)
418	{	198	{
419	archetype *tmp;	199	archetype *tmp;
420	int flag;	200	int flag;
421	maptile *m1;	201	maptile *m1;
422	sint16 sx, sy;	202	sint16 sx, sy;
423		203
424	if (ob == NULL)	204	if (!ob)
425	{	205	{
426	flag = get_map_flags (m, &m1, x, y, &sx, &sy);	206	flag = get_map_flags (m, &m1, x, y, &sx, &sy);
427	if (flag & P_OUT_OF_MAP)	207	if (flag & P_OUT_OF_MAP)
428	return P_OUT_OF_MAP;	208	return P_OUT_OF_MAP;
429		209
430	/* 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 */
431	return (GET_MAP_MOVE_BLOCK (m1, sx, sy));	211	return m1->at (sx, sy).move_block;
432	}	212	}
433		213
434	for (tmp = ob->arch; tmp != NULL; tmp = tmp->more)	214	for (tmp = ob->arch; tmp; tmp = (archetype *)tmp->more)
435	{	215	{
436	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);
437		217
438	if (flag & P_OUT_OF_MAP)	218	if (flag & P_OUT_OF_MAP)
439	return P_OUT_OF_MAP;	219	return P_OUT_OF_MAP;
440	if (flag & P_IS_ALIVE)	220	if (flag & P_IS_ALIVE)
441	return P_IS_ALIVE;	221	return P_IS_ALIVE;
442		222
		223	mapspace &ms = m1->at (sx, sy);
		224
443	/* find_first_free_spot() calls this function. However, often	225	/* find_first_free_spot() calls this function. However, often
444	* 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)
445	* 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.
446	*/	228	*/
447		229
448	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)
449	continue;	231	continue;
450		232
451	/* 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
452	* head of the object should correspond for the entire object.	234	* head of the object should correspond for the entire object.
453	*/	235	*/
454	if (OB_TYPE_MOVE_BLOCK (ob, GET_MAP_MOVE_BLOCK (m1, sx, sy)))	236	if (OB_TYPE_MOVE_BLOCK (ob, ms.move_block))
455	return AB_NO_PASS;	237	return P_NO_PASS;
456
457	}	238	}
		239
458	return 0;	240	return 0;
459	}	241	}
460		242
461	/* 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
462	* 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
463	* and insert them properly.	245	* and insert them properly.
464	* The object 'container' is the object that contains the inventory.	246	* The object 'container' is the object that contains the inventory.
465	* This is needed so that we can update the containers weight.	247	* This is needed so that we can update the containers weight.
466	*/	248	*/
467
468	void	249	void
469	fix_container (object *container)	250	fix_container (object *container)
470	{	251	{
471	object *tmp = container->inv, *next;	252	object *tmp = container->inv, *next;
472		253
473	container->inv = NULL;	254	container->inv = 0;
474	while (tmp != NULL)	255	while (tmp)
475	{	256	{
476	next = tmp->below;	257	next = tmp->below;
477	if (tmp->inv)	258	if (tmp->inv)
478	fix_container (tmp);	259	fix_container (tmp);
		260
479	(void) insert_ob_in_ob (tmp, container);	261	insert_ob_in_ob (tmp, container);
480	tmp = next;	262	tmp = next;
481	}	263	}
		264
482	/* 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
483	* carrying.	266	* carrying.
484	*/	267	*/
485	sum_weight (container);	268	sum_weight (container);
486	}	269	}
487		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
488	/* 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
489	* 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
490	* 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
491	* they are saved). We do have to look for the old maps that did save	285	* they are saved).
492	* the more sections and not re-add sections for them.
493	*/	286	*/
494		287	void
495	static void	288	maptile::link_multipart_objects ()
496	link_multipart_objects (maptile *m)
497	{	289	{
498	int x, y;	290	if (!spaces)
499	object *tmp, *op, *last, *above;	291	return;
500	archetype *at;
501		292
502	for (x = 0; x < MAP_WIDTH (m); x++)	293	for (mapspace *ms = spaces + size (); ms-- > spaces; )
503	for (y = 0; y < MAP_HEIGHT (m); y++)	294	{
504	for (tmp = get_map_ob (m, x, y); tmp != NULL; tmp = above)	295	object *op = ms->bot;
		296	while (op)
505	{	297	{
506	above = tmp->above;
507
508	/* already multipart - don't do anything more */	298	/* already multipart - don't do anything more */
509	if (tmp->head || tmp->more)	299	if (op->head_ () == op && !op->more && op->arch->more)
510	continue;
511
512	/* If there is nothing more to this object, this for loop
513	* won't do anything.
514	*/
515	for (at = tmp->arch->more, last = tmp; at != NULL; at = at->more, last = op)
516	{	300	{
517	op = arch_to_object (at);	301	op->remove ();
		302	op->expand_tail ();
518		303
519	/* update x,y coordinates */	304	// FIXME: INS_ON_TOP is just a workaround for the pentagram vs.
520	op->x += tmp->x;	305	// multi-tile monster bug, where INS_ABOVE_FLOOR_ONLY put the monsters
521	op->y += tmp->y;	306	// below the pentagrams... hopefully INS_ON_TOP doesn't break anything
522	op->head = tmp;	307	insert (op, op->x, op->y, 0, INS_NO_MERGE | INS_ON_TOP | INS_NO_WALK_ON);
523	op->map = m;	308
524	last->more = op;	309	op = ms->bot; // we are mutating the mapspace too much with INS_ON_TOP
525	op->name = tmp->name;	310	// so we have to reset the iteration through the mapspace
526	op->title = tmp->title;
527	/* we could link all the parts onto tmp, and then just
528	* call insert_ob_in_map once, but the effect is the same,
529	* as insert_ob_in_map will call itself with each part, and
530	* the coding is simpler to just to it here with each part.
531	*/	311	}
532	insert_ob_in_map (op, op->map, tmp, INS_NO_MERGE | INS_ABOVE_FLOOR_ONLY | INS_NO_WALK_ON);	312	else
533	} /* for at = tmp->arch->more */	313	op = op->above;
534	} /* for objects on this space */	314	}
		315	}
535	}	316	}
536		317
537	/*	318	/*
538	* 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
539	* file pointer.	320	* file pointer.
540	* mapflags is the same as we get with load_original_map
541	*/	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
542	void	357	void
543	load_objects (maptile *m, object_thawer & fp, int mapflags)	358	maptile::activate ()
544	{	359	{
545	int i, j;	360	if (spaces)
		361	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		362	for (object *op = ms->bot; op; op = op->above)
		363	op->activate_recursive ();
		364	}
		365
		366	void
		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	}
		374
		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)
		387	{
546	int unique;	388	int unique = 0;
547	object *op, *prev = NULL, *last_more = NULL, *otmp;	389	for (object *op = spaces [i].bot; op; op = op->above)
548
549	op = get_object ();
550	op->map = m; /* To handle buttons correctly */
551
552	while ((i = load_object (fp, op, mapflags)))
553	{
554	/* if the archetype for the object is null, means that we
555	* got an invalid object. Don't do anything with it - the game
556	* or editor will not be able to do anything with it either.
557	*/
558	if (op->arch == NULL)
559	{	390	{
560	LOG (llevDebug, "Discarding object without arch: %s\n", op->name ? (const char *) op->name : "(null)");	391	if (op->flag [FLAG_UNIQUE] && op->flag [FLAG_IS_FLOOR])
		392	unique = 1;
		393
		394	if (!op->can_map_save ())
561	continue;	395	continue;
		396
		397	if (unique || op->flag [FLAG_UNIQUE])
		398	{
		399	if (flags & IO_UNIQUES)
		400	op->write (f);
		401	}
		402	else if (flags & IO_OBJECTS)
		403	op->write (f);
562	}	404	}
563
564
565	switch (i)
566	{
567	case LL_NORMAL:
568	/* if we are loading an overlay, put the floors on the bottom */
569	if ((QUERY_FLAG (op, FLAG_IS_FLOOR) || QUERY_FLAG (op, FLAG_OVERLAY_FLOOR)) && mapflags & MAP_OVERLAY)
570	insert_ob_in_map (op, m, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ABOVE_FLOOR_ONLY | INS_MAP_LOAD);
571	else
572	insert_ob_in_map (op, m, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ON_TOP | INS_MAP_LOAD);
573
574	if (op->inv)
575	sum_weight (op);
576
577	prev = op, last_more = op;
578	break;
579
580	case LL_MORE:
581	insert_ob_in_map (op, m, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ABOVE_FLOOR_ONLY);
582	op->head = prev, last_more->more = op, last_more = op;
583	break;
584	}
585
586	if (mapflags & MAP_STYLE)
587	remove_from_active_list (op);
588
589	op = get_object ();
590	op->map = m;
591	}
592
593	for (i = 0; i < m->width; i++)
594	{	405	}
595	for (j = 0; j < m->height; j++)
596	{
597	unique = 0;
598	/* check for unique items, or unique squares */
599	for (otmp = get_map_ob (m, i, j); otmp; otmp = otmp->above)
600	{
601	if (QUERY_FLAG (otmp, FLAG_UNIQUE) || QUERY_FLAG (otmp, FLAG_OBJ_SAVE_ON_OVL))
602	unique = 1;
603	if (!(mapflags & (MAP_OVERLAY | MAP_PLAYER_UNIQUE) || unique))
604	SET_FLAG (otmp, FLAG_OBJ_ORIGINAL);
605	}
606	}
607	}
608		406
609	free_object (op);	407	coroapi::cede_to_tick ();
610	link_multipart_objects (m);
611	}
612		408
613	/* This saves all the objects on the map in a non destructive fashion.	409	return true;
614	* Modified by MSW 2001-07-01 to do in a single pass - reduces code,	410	}
615	* and we only save the head of multi part objects - this is needed
616	* in order to do map tiling properly.
617	*/
618	void
619	save_objects (maptile *m, object_freezer & fp, object_freezer & fp2, int flag)
620	{
621	int i, j = 0, unique = 0;
622	object *op;
623		411
624	/* first pass - save one-part objects */	412	bool
625	for (i = 0; i < MAP_WIDTH (m); i++)	413	maptile::_load_objects (const char *path, bool skip_header)
626	for (j = 0; j < MAP_HEIGHT (m); j++)	414	{
		415	object_thawer f (path);
		416
		417	if (!f)
		418	return false;
		419
		420	f.next ();
		421
		422	if (skip_header)
		423	for (;;)
627	{	424	{
628	unique = 0;	425	keyword kw = f.kw;
629	for (op = get_map_ob (m, i, j); op; op = op->above)	426	f.skip ();
630	{	427	if (kw == KW_end)
631	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))	428	break;
632	unique = 1;	429	}
633		430
634	if (op->type == PLAYER)	431	return _load_objects (f);
635	{
636	LOG (llevDebug, "Player on map that is being saved\n");
637	continue;
638	}
639
640	if (op->head || op->owner)
641	continue;
642
643	if (unique || QUERY_FLAG (op, FLAG_UNIQUE))
644	save_object (fp2, op, 3);
645	else if (flag == 0 || (flag == 2 && (!QUERY_FLAG (op, FLAG_OBJ_ORIGINAL) && !QUERY_FLAG (op, FLAG_UNPAID))))
646	save_object (fp, op, 3);
647
648	} /* for this space */
649	} /* for this j */
650	}	432	}
651		433
652	/*	434	bool
653	* Allocates, initialises, and returns a pointer to a maptile.	435	maptile::_save_objects (const char *path, int flags)
654	* Modified to no longer take a path option which was not being
655	* used anyways. MSW 2001-07-01
656	*/
657
658	maptile *
659	get_linked_map (void)
660	{	436	{
661	maptile *map = new maptile;	437	object_freezer freezer;
662	maptile *mp;
663		438
664	for (mp = first_map; mp != NULL && mp->next != NULL; mp = mp->next);	439	if (!_save_objects (freezer, flags))
665	if (mp == NULL)	440	return false;
666	first_map = map;
667	else
668	mp->next = map;
669		441
		442	return freezer.save (path);
		443	}
		444
		445	maptile::maptile ()
		446	{
670	map->in_memory = MAP_SWAPPED;	447	in_memory = MAP_SWAPPED;
		448
671	/* The maps used to pick up default x and y values from the	449	/* The maps used to pick up default x and y values from the
672	* map archetype. Mimic that behaviour.	450	* map archetype. Mimic that behaviour.
673	*/	451	*/
674	MAP_WIDTH (map) = 16;	452	width = 16;
675	MAP_HEIGHT (map) = 16;	453	height = 16;
676	MAP_RESET_TIMEOUT (map) = 0;	454	timeout = 300;
677	MAP_TIMEOUT (map) = 300;	455	max_nrof = 1000; // 1000 items of anything
678	MAP_ENTER_X (map) = 0;	456	max_volume = 2000000; // 2m³
679	MAP_ENTER_Y (map) = 0;	457	}
680	/*set part to -1 indicating conversion to weather map not yet done */	458
681	MAP_WORLDPARTX (map) = -1;	459	maptile::maptile (int w, int h)
682	MAP_WORLDPARTY (map) = -1;	460	{
683	return map;	461	in_memory = MAP_SWAPPED;
		462
		463	width = w;
		464	height = h;
		465	reset_timeout = 0;
		466	timeout = 300;
		467	enter_x = 0;
		468	enter_y = 0;
		469
		470	alloc ();
684	}	471	}
685		472
686	/*	473	/*
687	* Allocates the arrays contained in a maptile.	474	* Allocates the arrays contained in a maptile.
688	* This basically allocates the dynamic array of spaces for the	475	* This basically allocates the dynamic array of spaces for the
689	* map.	476	* map.
690	*/	477	*/
691
692	void	478	void
693	allocate_map (maptile *m)	479	maptile::alloc ()
694	{	480	{
695	m->in_memory = MAP_IN_MEMORY;
696	/* Log this condition and free the storage. We could I suppose
697	* realloc, but if the caller is presuming the data will be intact,
698	* that is their poor assumption.
699	*/
700	if (m->spaces)	481	if (spaces)
701	{
702	LOG (llevError, "allocate_map called with already allocated map (%s)\n", m->path);
703	free (m->spaces);
704	}
705
706	m->spaces = (MapSpace *) calloc (1, MAP_WIDTH (m) * MAP_HEIGHT (m) * sizeof (MapSpace));
707
708	if (m->spaces == NULL)
709	fatal (OUT_OF_MEMORY);
710	}
711
712	/* Create and returns a map of the specific size. Used
713	* in random map code and the editor.
714	*/
715	maptile *
716	get_empty_map (int sizex, int sizey)
717	{
718	maptile *m = get_linked_map ();
719
720	m->width = sizex;
721	m->height = sizey;
722	m->in_memory = MAP_SWAPPED;
723	allocate_map (m);
724	return m;	482	return;
		483
		484	spaces = salloc0<mapspace> (size ());
725	}	485	}
726		486
727	/* Takes a string from a map definition and outputs a pointer to the array of shopitems	487	/* Takes a string from a map definition and outputs a pointer to the array of shopitems
728	* corresponding to that string. Memory is allocated for this, it must be freed	488	* corresponding to that string. Memory is allocated for this, it must be freed
729	* at a later date.	489	* at a later date.
730	* Called by parse_map_headers below.	490	* Called by parse_map_headers below.
731	*/	491	*/
732
733	static shopitems *	492	static shopitems *
734	parse_shop_string (const char *input_string)	493	parse_shop_string (const char *input_string)
735	{	494	{
736	char *shop_string, *p, *q, *next_semicolon, *next_colon;	495	char *shop_string, *p, *q, *next_semicolon, *next_colon;
737	shopitems *items = NULL;	496	shopitems *items = NULL;
738	int i = 0, number_of_entries = 0;	497	int i = 0, number_of_entries = 0;
739	const typedata *current_type;	498	const typedata *current_type;
740		499
741	shop_string = strdup_local (input_string);	500	shop_string = strdup (input_string);
742	p = shop_string;	501	p = shop_string;
743	/* first we'll count the entries, we'll need that for allocating the array shortly */	502	/* first we'll count the entries, we'll need that for allocating the array shortly */
744	while (p)	503	while (p)
745	{	504	{
746	p = strchr (p, ';');	505	p = strchr (p, ';');
747	number_of_entries++;	506	number_of_entries++;
748	if (p)	507	if (p)
749	p++;	508	p++;
750	}	509	}
		510
751	p = shop_string;	511	p = shop_string;
752	strip_endline (p);	512	strip_endline (p);
753	items = new shopitems[number_of_entries + 1];	513	items = new shopitems[number_of_entries + 1];
754	for (i = 0; i < number_of_entries; i++)	514	for (i = 0; i < number_of_entries; i++)
755	{	515	{
756	if (!p)	516	if (!p)
757	{	517	{
758	LOG (llevError, "parse_shop_string: I seem to have run out of string, that shouldn't happen.\n");	518	LOG (llevError, "parse_shop_string: I seem to have run out of string, that shouldn't happen.\n");
759	break;	519	break;
760	}	520	}
		521
761	next_semicolon = strchr (p, ';');	522	next_semicolon = strchr (p, ';');
762	next_colon = strchr (p, ':');	523	next_colon = strchr (p, ':');
763	/* if there is a stregth specified, figure out what it is, we'll need it soon. */	524	/* if there is a stregth specified, figure out what it is, we'll need it soon. */
764	if (next_colon && (!next_semicolon || next_colon < next_semicolon))	525	if (next_colon && (!next_semicolon || next_colon < next_semicolon))
765	items[i].strength = atoi (strchr (p, ':') + 1);	526	items[i].strength = atoi (strchr (p, ':') + 1);
…		…
792	* the next entry while we're at it, better print a warning	553	* the next entry while we're at it, better print a warning
793	*/	554	*/
794	LOG (llevError, "invalid type %s defined in shopitems in string %s\n", p, input_string);	555	LOG (llevError, "invalid type %s defined in shopitems in string %s\n", p, input_string);
795	}	556	}
796	}	557	}
		558
797	items[i].index = number_of_entries;	559	items[i].index = number_of_entries;
798	if (next_semicolon)	560	if (next_semicolon)
799	p = ++next_semicolon;	561	p = ++next_semicolon;
800	else	562	else
801	p = NULL;	563	p = NULL;
802	}	564	}
		565
803	free (shop_string);	566	free (shop_string);
804	return items;	567	return items;
805	}	568	}
806		569
807	/* opposite of parse string, this puts the string that was originally fed in to	570	/* opposite of parse string, this puts the string that was originally fed in to
…		…
816	for (i = 0; i < m->shopitems[0].index; i++)	579	for (i = 0; i < m->shopitems[0].index; i++)
817	{	580	{
818	if (m->shopitems[i].typenum)	581	if (m->shopitems[i].typenum)
819	{	582	{
820	if (m->shopitems[i].strength)	583	if (m->shopitems[i].strength)
821	{
822	sprintf (tmp, "%s:%d;", m->shopitems[i].name, m->shopitems[i].strength);	584	sprintf (tmp, "%s:%d;", m->shopitems[i].name, m->shopitems[i].strength);
823	}
824	else	585	else
825	sprintf (tmp, "%s;", m->shopitems[i].name);	586	sprintf (tmp, "%s;", m->shopitems[i].name);
826	}	587	}
827	else	588	else
828	{	589	{
829	if (m->shopitems[i].strength)	590	if (m->shopitems[i].strength)
830	{
831	sprintf (tmp, "*:%d;", m->shopitems[i].strength);	591	sprintf (tmp, "*:%d;", m->shopitems[i].strength);
832	}
833	else	592	else
834	sprintf (tmp, "*");	593	sprintf (tmp, "*");
835	}	594	}
		595
836	strcat (output_string, tmp);	596	strcat (output_string, tmp);
837	}	597	}
838	}	598	}
839		599
840	/* This loads the header information of the map. The header	600	/* This loads the header information of the map. The header
…		…
845	* put all the stuff in the map object so that names actually make	605	* put all the stuff in the map object so that names actually make
846	* sense.	606	* sense.
847	* This could be done in lex (like the object loader), but I think	607	* This could be done in lex (like the object loader), but I think
848	* currently, there are few enough fields this is not a big deal.	608	* currently, there are few enough fields this is not a big deal.
849	* MSW 2001-07-01	609	* MSW 2001-07-01
850	* return 0 on success, 1 on failure.
851	*/	610	*/
852		611	bool
853	static int	612	maptile::_load_header (object_thawer &thawer)
854	load_map_header (object_thawer & fp, maptile *m)
855	{	613	{
856	char buf[HUGE_BUF], msgbuf[HUGE_BUF], maplorebuf[HUGE_BUF], *key = NULL, *value, *end;	614	for (;;)
857	int msgpos = 0;
858	int maplorepos = 0;
859
860	while (fgets (buf, HUGE_BUF - 1, fp) != NULL)
861	{	615	{
862	buf[HUGE_BUF - 1] = 0;	616	thawer.next ();
863	key = buf;	617
864	while (isspace (*key))	618	switch (thawer.kw)
865	key++;
866	if (*key == 0)
867	continue; /* empty line */
868	value = strchr (key, ' ');
869	if (!value)
870	{	619	{
871	end = strchr (key, '\n');	620	case KW_msg:
872	if (end != NULL)	621	thawer.get_ml (KW_endmsg, msg);
873	{	622	break;
874	*end = 0;	623
		624	case KW_lore: // CF+ extension
		625	thawer.get_ml (KW_endlore, maplore);
875	}	626	break;
		627
		628	case KW_maplore:
		629	thawer.get_ml (KW_endmaplore, maplore);
		630	break;
		631
		632	case KW_arch:
		633	if (strcmp (thawer.get_str (), "map"))
		634	LOG (llevError, "%s: loading map and got a non 'arch map' line (arch %s), skipping.\n", &path, thawer.get_str ());
		635	break;
		636
		637	case KW_oid:
		638	thawer.get (this, thawer.get_sint32 ());
		639	break;
		640
		641	case KW_file_format_version: break; // nop
		642
		643	case KW_name: thawer.get (name); break;
		644	case KW_attach: thawer.get (attach); break;
		645	case KW_reset_time: thawer.get (reset_time); break;
		646	case KW_shopgreed: thawer.get (shopgreed); break;
		647	case KW_shopmin: thawer.get (shopmin); break;
		648	case KW_shopmax: thawer.get (shopmax); break;
		649	case KW_shoprace: thawer.get (shoprace); break;
		650	case KW_outdoor: thawer.get (outdoor); break;
		651	case KW_temp: thawer.get (temp); break;
		652	case KW_pressure: thawer.get (pressure); break;
		653	case KW_humid: thawer.get (humid); break;
		654	case KW_windspeed: thawer.get (windspeed); break;
		655	case KW_winddir: thawer.get (winddir); break;
		656	case KW_sky: thawer.get (sky); break;
		657
		658	case KW_per_player: thawer.get (per_player); break;
		659	case KW_per_party: thawer.get (per_party); break;
		660	case KW_no_reset: thawer.get (no_reset); break;
		661
		662	case KW_region: default_region = region::find (thawer.get_str ()); break;
		663	case KW_shopitems: shopitems = parse_shop_string (thawer.get_str ()); break;
		664
		665	// old names new names
		666	case KW_hp: case KW_enter_x: thawer.get (enter_x); break;
		667	case KW_sp: case KW_enter_y: thawer.get (enter_y); break;
		668	case KW_x: case KW_width: thawer.get (width); break;
		669	case KW_y: case KW_height: thawer.get (height); break;
		670	case KW_weight: case KW_reset_timeout: thawer.get (reset_timeout); break;
		671	case KW_value: case KW_swap_time: thawer.get (timeout); break;
		672	case KW_level: case KW_difficulty: thawer.get (difficulty); difficulty = clamp (difficulty, 1, settings.max_level); break;
		673	case KW_invisible: case KW_darkness: thawer.get (darkness); break;
		674	case KW_stand_still: case KW_fixed_resettime: thawer.get (fixed_resettime); break;
		675
		676	case KW_tile_path_1: thawer.get (tile_path [0]); break;
		677	case KW_tile_path_2: thawer.get (tile_path [1]); break;
		678	case KW_tile_path_3: thawer.get (tile_path [2]); break;
		679	case KW_tile_path_4: thawer.get (tile_path [3]); break;
		680
		681	case KW_ERROR:
		682	set_key (thawer.kw_str, thawer.value);
		683	break;
		684
		685	case KW_end:
		686	return true;
		687
		688	default:
		689	if (!thawer.parse_error ("map", 0))
		690	return false;
		691	break;
876	}	692	}
877	else
878	{
879	*value = 0;
880	value++;
881	end = strchr (value, '\n');
882	while (isspace (*value))
883	{
884	value++;
885	if (*value == '\0' || value == end)
886	{
887	/* Nothing but spaces. */
888	value = NULL;
889	break;
890	}
891	}
892	}
893
894	if (!end)
895	{
896	LOG (llevError, "Error loading map header - did not find a newline - perhaps file is truncated? Buf=%s\n", buf);
897	return 1;
898	}
899
900	/* key is the field name, value is what it should be set
901	* to. We've already done the work to null terminate key,
902	* and strip off any leading spaces for both of these.
903	* We have not touched the newline at the end of the line -
904	* these are needed for some values. the end pointer
905	* points to the first of the newlines.
906	* value could be NULL! It would be easy enough to just point
907	* this to "" to prevent cores, but that would let more errors slide
908	* through.
909	*
910	* First check for entries that do not use the value parameter, then
911	* validate that value is given and check for the remaining entries
912	* that use the parameter.
913	*/
914
915	if (!strcmp (key, "msg"))
916	{
917	while (fgets (buf, HUGE_BUF - 1, fp) != NULL)
918	{
919	if (!strcmp (buf, "endmsg\n"))
920	break;
921	else
922	{
923	/* slightly more efficient than strcat */
924	strcpy (msgbuf + msgpos, buf);
925	msgpos += strlen (buf);
926	}
927	}
928	/* There are lots of maps that have empty messages (eg, msg/endmsg
929	* with nothing between). There is no reason in those cases to
930	* keep the empty message. Also, msgbuf contains garbage data
931	* when msgpos is zero, so copying it results in crashes
932	*/
933	if (msgpos != 0)
934	m->msg = strdup_local (msgbuf);
935	}
936	else if (!strcmp (key, "maplore"))
937	{
938	while (fgets (buf, HUGE_BUF - 1, fp) != NULL)
939	{
940	if (!strcmp (buf, "endmaplore\n"))
941	break;
942	else
943	{
944	/* slightly more efficient than strcat */
945	strcpy (maplorebuf + maplorepos, buf);
946	maplorepos += strlen (buf);
947	}
948	}
949	if (maplorepos != 0)
950	m->maplore = strdup_local (maplorebuf);
951	}
952	else if (!strcmp (key, "end"))
953	{
954	break;
955	}
956	else if (value == NULL)
957	{
958	LOG (llevError, "Got '%s' line without parameter in map header\n", key);
959	}
960	else if (!strcmp (key, "arch"))
961	{
962	/* This is an oddity, but not something we care about much. */
963	if (strcmp (value, "map\n"))
964	LOG (llevError, "loading map and got a non 'arch map' line(%s %s)?\n", key, value);
965	}
966	else if (!strcmp (key, "name"))
967	{
968	*end = 0;
969	m->name = strdup_local (value);
970	}
971	/* first strcmp value on these are old names supported
972	* for compatibility reasons. The new values (second) are
973	* what really should be used.
974	*/
975	else if (!strcmp (key, "oid"))
976	{
977	fp.get (m, atoi (value));
978	}
979	else if (!strcmp (key, "attach"))
980	{
981	m->attach = value;
982	}
983	else if (!strcmp (key, "hp") || !strcmp (key, "enter_x"))
984	{
985	m->enter_x = atoi (value);
986	}
987	else if (!strcmp (key, "sp") || !strcmp (key, "enter_y"))
988	{
989	m->enter_y = atoi (value);
990	}
991	else if (!strcmp (key, "x") || !strcmp (key, "width"))
992	{
993	m->width = atoi (value);
994	}
995	else if (!strcmp (key, "y") || !strcmp (key, "height"))
996	{
997	m->height = atoi (value);
998	}
999	else if (!strcmp (key, "weight") || !strcmp (key, "reset_timeout"))
1000	{
1001	m->reset_timeout = atoi (value);
1002	}
1003	else if (!strcmp (key, "value") || !strcmp (key, "swap_time"))
1004	{
1005	m->timeout = atoi (value);
1006	}
1007	else if (!strcmp (key, "level") || !strcmp (key, "difficulty"))
1008	{
1009	m->difficulty = atoi (value);
1010	}
1011	else if (!strcmp (key, "invisible") || !strcmp (key, "darkness"))
1012	{
1013	m->darkness = atoi (value);
1014	}
1015	else if (!strcmp (key, "stand_still") || !strcmp (key, "fixed_resettime"))
1016	{
1017	m->fixed_resettime = atoi (value);
1018	}
1019	else if (!strcmp (key, "unique"))
1020	{
1021	m->unique = atoi (value);
1022	}
1023	else if (!strcmp (key, "template"))
1024	{
1025	m->templatemap = atoi (value);
1026	}
1027	else if (!strcmp (key, "region"))
1028	{
1029	m->region = get_region_by_name (value);
1030	}
1031	else if (!strcmp (key, "shopitems"))
1032	{
1033	*end = 0;
1034	m->shopitems = parse_shop_string (value);
1035	}
1036	else if (!strcmp (key, "shopgreed"))
1037	{
1038	m->shopgreed = atof (value);
1039	}
1040	else if (!strcmp (key, "shopmin"))
1041	{
1042	m->shopmin = atol (value);
1043	}
1044	else if (!strcmp (key, "shopmax"))
1045	{
1046	m->shopmax = atol (value);
1047	}
1048	else if (!strcmp (key, "shoprace"))
1049	{
1050	*end = 0;
1051	m->shoprace = strdup_local (value);
1052	}
1053	else if (!strcmp (key, "outdoor"))
1054	{
1055	m->outdoor = atoi (value);
1056	}
1057	else if (!strcmp (key, "temp"))
1058	{
1059	m->temp = atoi (value);
1060	}
1061	else if (!strcmp (key, "pressure"))
1062	{
1063	m->pressure = atoi (value);
1064	}
1065	else if (!strcmp (key, "humid"))
1066	{
1067	m->humid = atoi (value);
1068	}
1069	else if (!strcmp (key, "windspeed"))
1070	{
1071	m->windspeed = atoi (value);
1072	}
1073	else if (!strcmp (key, "winddir"))
1074	{
1075	m->winddir = atoi (value);
1076	}
1077	else if (!strcmp (key, "sky"))
1078	{
1079	m->sky = atoi (value);
1080	}
1081	else if (!strcmp (key, "nosmooth"))
1082	{
1083	m->nosmooth = atoi (value);
1084	}
1085	else if (!strncmp (key, "tile_path_", 10))
1086	{
1087	int tile = atoi (key + 10);
1088
1089	if (tile < 1 || tile > 4)
1090	{
1091	LOG (llevError, "load_map_header: tile location %d out of bounds (%s)\n", tile, m->path);
1092	}
1093	else
1094	{
1095	char *path;
1096
1097	*end = 0;
1098
1099	if (m->tile_path[tile - 1])
1100	{
1101	LOG (llevError, "load_map_header: tile location %d duplicated (%s)\n", tile, m->path);
1102	free (m->tile_path[tile - 1]);
1103	m->tile_path[tile - 1] = NULL;
1104	}
1105
1106	if (check_path (value, 1) != -1)
1107	{
1108	/* The unadorned path works. */
1109	path = value;
1110	}
1111	else
1112	{
1113	/* Try again; it could be a relative exit. */
1114
1115	path = path_combine_and_normalize (m->path, value);
1116
1117	if (check_path (path, 1) == -1)
1118	{
1119	LOG (llevError, "get_map_header: Bad tile path %s %s\n", m->path, value);
1120	path = NULL;
1121	}
1122	}
1123
1124	if (editor)
1125	{
1126	/* Use the value as in the file. */
1127	m->tile_path[tile - 1] = strdup_local (value);
1128	}
1129	else if (path != NULL)
1130	{
1131	/* Use the normalized value. */
1132	m->tile_path[tile - 1] = strdup_local (path);
1133	}
1134	} /* end if tile direction (in)valid */
1135	}
1136	else
1137	{
1138	LOG (llevError, "Got unknown value in map header: %s %s\n", key, value);
1139	}
1140	}
1141	if (!key || strcmp (key, "end"))
1142	{	693	}
1143	LOG (llevError, "Got premature eof on map header!\n");
1144	return 1;
1145	}
1146	return 0;
1147	}
1148		694
1149	/*	695	abort ();
1150	* Opens the file "filename" and reads information about the map	696	}
1151	* from the given file, and stores it in a newly allocated
1152	* maptile. A pointer to this structure is returned, or NULL on failure.
1153	* flags correspond to those in map.h. Main ones used are
1154	* MAP_PLAYER_UNIQUE, in which case we don't do any name changes, and
1155	* MAP_BLOCK, in which case we block on this load. This happens in all
1156	* cases, no matter if this flag is set or not.
1157	* MAP_STYLE: style map - don't add active objects, don't add to server
1158	* managed map list.
1159	*/
1160		697
1161	maptile *	698	bool
1162	load_original_map (const char *filename, int flags)	699	maptile::_load_header (const char *path)
1163	{	700	{
1164	maptile *m;
1165	char pathname[MAX_BUF];
1166
1167	if (flags & MAP_PLAYER_UNIQUE)
1168	strcpy (pathname, filename);
1169	else if (flags & MAP_OVERLAY)
1170	strcpy (pathname, create_overlay_pathname (filename));
1171	else
1172	strcpy (pathname, create_pathname (filename));
1173
1174	LOG (llevDebug, "load_original_map(%x): %s (%s)\n", flags, filename, pathname);
1175
1176	object_thawer thawer (pathname);	701	object_thawer thawer (path);
1177		702
1178	if (!thawer)	703	if (!thawer)
1179	return 0;	704	return false;
1180		705
1181	m = get_linked_map ();	706	return _load_header (thawer);
1182
1183	strcpy (m->path, filename);
1184	if (load_map_header (thawer, m))
1185	{
1186	LOG (llevError, "Error loading map header for %s, flags=%d\n", filename, flags);
1187	delete_map (m);
1188	return NULL;
1189	}
1190
1191	allocate_map (m);
1192
1193	m->in_memory = MAP_LOADING;
1194	load_objects (m, thawer, flags & (MAP_BLOCK | MAP_STYLE));
1195
1196	m->in_memory = MAP_IN_MEMORY;
1197	if (!MAP_DIFFICULTY (m))
1198	MAP_DIFFICULTY (m) = calculate_difficulty (m);
1199	set_map_reset_time (m);
1200	m->instantiate ();
1201	return (m);
1202	}
1203
1204	/*
1205	* Loads a map, which has been loaded earlier, from file.
1206	* Return the map object we load into (this can change from the passed
1207	* option if we can't find the original map)
1208	*/
1209
1210	static maptile *
1211	load_temporary_map (maptile *m)
1212	{
1213	char buf[MAX_BUF];
1214
1215	if (!m->tmpname)
1216	{
1217	LOG (llevError, "No temporary filename for map %s\n", m->path);
1218	strcpy (buf, m->path);
1219	delete_map (m);
1220	m = load_original_map (buf, 0);
1221	if (m == NULL)
1222	return NULL;
1223	fix_auto_apply (m); /* Chests which open as default */
1224	return m;
1225	}
1226
1227	object_thawer thawer (m->tmpname);
1228
1229	if (!thawer)
1230	{
1231	strcpy (buf, m->path);
1232	delete_map (m);
1233	m = load_original_map (buf, 0);
1234	if (!m)
1235	return NULL;
1236	fix_auto_apply (m); /* Chests which open as default */
1237	return m;
1238	}
1239
1240	if (load_map_header (thawer, m))
1241	{
1242	LOG (llevError, "Error loading map header for %s (%s)\n", m->path, m->tmpname);
1243	delete_map (m);
1244	m = load_original_map (m->path, 0);
1245	return NULL;
1246	}
1247	allocate_map (m);
1248
1249	m->in_memory = MAP_LOADING;
1250	load_objects (m, thawer, 0);
1251
1252	m->in_memory = MAP_IN_MEMORY;
1253	INVOKE_MAP (SWAPIN, m);
1254	return m;
1255	}
1256
1257	/*
1258	* Loads a map, which has been loaded earlier, from file.
1259	* Return the map object we load into (this can change from the passed
1260	* option if we can't find the original map)
1261	*/
1262
1263	maptile *
1264	load_overlay_map (const char *filename, maptile *m)
1265	{
1266	char pathname[MAX_BUF];
1267
1268	strcpy (pathname, create_overlay_pathname (filename));
1269
1270	object_thawer thawer (pathname);
1271
1272	if (!thawer)
1273	return m;
1274
1275	if (load_map_header (thawer, m))
1276	{
1277	LOG (llevError, "Error loading map header for overlay %s (%s)\n", m->path, pathname);
1278	delete_map (m);
1279	m = load_original_map (m->path, 0);
1280	return NULL;
1281	}
1282	/*allocate_map(m); */
1283
1284	m->in_memory = MAP_LOADING;
1285	load_objects (m, thawer, MAP_OVERLAY);
1286
1287	m->in_memory = MAP_IN_MEMORY;
1288	return m;
1289	}	707	}
1290		708
1291	/******************************************************************************	709	/******************************************************************************
1292	* This is the start of unique map handling code	710	* This is the start of unique map handling code
1293	*****************************************************************************/	711	*****************************************************************************/
1294		712
1295	/* This goes through map 'm' and removed any unique items on the map. */	713	/* This goes through the maptile and removed any unique items on the map. */
1296	static void	714	void
1297	delete_unique_items (maptile *m)	715	maptile::clear_unique_items ()
1298	{	716	{
1299	int i, j, unique;	717	for (int i = 0; i < size (); ++i)
1300	object *op, *next;	718	{
		719	int unique = 0;
		720	for (object *op = spaces [i].bot; op; )
		721	{
		722	object *above = op->above;
1301		723
1302	for (i = 0; i < MAP_WIDTH (m); i++)	724	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))
1303	for (j = 0; j < MAP_HEIGHT (m); j++)	725	unique = 1;
		726
		727	if (op->head_ () == op && (QUERY_FLAG (op, FLAG_UNIQUE) || unique))
		728	{
		729	op->destroy_inv (false);
		730	op->destroy ();
		731	}
		732
		733	op = above;
		734	}
		735	}
		736	}
		737
		738	bool
		739	maptile::_save_header (object_freezer &freezer)
		740	{
		741	#define MAP_OUT(k) freezer.put (KW_ ## k, k)
		742	#define MAP_OUT2(k,v) freezer.put (KW_ ## k, v)
		743
		744	MAP_OUT2 (arch, "map");
		745
		746	if (name) MAP_OUT (name);
		747	MAP_OUT (swap_time);
		748	MAP_OUT (reset_time);
		749	MAP_OUT (reset_timeout);
		750	MAP_OUT (fixed_resettime);
		751	MAP_OUT (no_reset);
		752	MAP_OUT (difficulty);
		753
		754	if (default_region) MAP_OUT2 (region, default_region->name);
		755
		756	if (shopitems)
		757	{
		758	char shop[MAX_BUF];
		759	print_shop_string (this, shop);
		760	MAP_OUT2 (shopitems, shop);
		761	}
		762
		763	MAP_OUT (shopgreed);
		764	MAP_OUT (shopmin);
		765	MAP_OUT (shopmax);
		766	if (shoprace) MAP_OUT (shoprace);
		767	MAP_OUT (darkness);
		768	MAP_OUT (width);
		769	MAP_OUT (height);
		770	MAP_OUT (enter_x);
		771	MAP_OUT (enter_y);
		772
		773	if (msg) freezer.put (KW_msg , KW_endmsg , msg);
		774	if (maplore) freezer.put (KW_maplore, KW_endmaplore, maplore);
		775
		776	MAP_OUT (outdoor);
		777	MAP_OUT (temp);
		778	MAP_OUT (pressure);
		779	MAP_OUT (humid);
		780	MAP_OUT (windspeed);
		781	MAP_OUT (winddir);
		782	MAP_OUT (sky);
		783
		784	MAP_OUT (per_player);
		785	MAP_OUT (per_party);
		786
		787	if (tile_path [0]) MAP_OUT2 (tile_path_1, tile_path [0]);
		788	if (tile_path [1]) MAP_OUT2 (tile_path_2, tile_path [1]);
		789	if (tile_path [2]) MAP_OUT2 (tile_path_3, tile_path [2]);
		790	if (tile_path [3]) MAP_OUT2 (tile_path_4, tile_path [3]);
		791
		792	freezer.put (this);
		793	freezer.put (KW_end);
		794
		795	return true;
		796	}
		797
		798	bool
		799	maptile::_save_header (const char *path)
		800	{
		801	object_freezer freezer;
		802
		803	if (!_save_header (freezer))
		804	return false;
		805
		806	return freezer.save (path);
		807	}
		808
		809	/*
		810	* Remove and free all objects in the given map.
		811	*/
		812	void
		813	maptile::clear ()
		814	{
		815	sfree (regions, size ()); regions = 0;
		816	delete [] regionmap; regionmap = 0;
		817
		818	if (spaces)
		819	{
		820	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		821	while (object *op = ms->bot)
		822	{
		823	op = op->head_ ();
		824	op->destroy_inv (false);
		825	op->destroy ();
		826	}
		827
		828	sfree (spaces, size ()), spaces = 0;
		829	}
		830
		831	if (buttons)
		832	free_objectlinkpt (buttons), buttons = 0;
		833	}
		834
		835	void
		836	maptile::clear_header ()
		837	{
		838	name = 0;
		839	msg = 0;
		840	maplore = 0;
		841	shoprace = 0;
		842	delete [] shopitems, shopitems = 0;
		843
		844	for (int i = 0; i < 4; i++)
		845	tile_path [i] = 0;
		846	}
		847
		848	maptile::~maptile ()
		849	{
		850	assert (destroyed ());
		851	}
		852
		853	void
		854	maptile::clear_links_to (maptile *m)
		855	{
		856	/* We need to look through all the maps and see if any maps
		857	* are pointing at this one for tiling information. Since
		858	* tiling can be asymetric, we just can not look to see which
		859	* maps this map tiles with and clears those.
		860	*/
		861	for (int i = 0; i < 4; i++)
		862	if (tile_map[i] == m)
		863	tile_map[i] = 0;
		864	}
		865
		866	void
		867	maptile::do_destroy ()
		868	{
		869	attachable::do_destroy ();
		870
		871	clear ();
		872	}
		873
		874	/* decay and destroy perishable items in a map */
		875	void
		876	maptile::do_decay_objects ()
		877	{
		878	if (!spaces)
		879	return;
		880
		881	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		882	for (object *above, *op = ms->bot; op; op = above)
1304	{	883	{
1305	unique = 0;	884	above = op->above;
1306	for (op = get_map_ob (m, i, j); op; op = next)	885
		886	bool destroy = 0;
		887
		888	// do not decay anything above unique floor tiles (yet :)
		889	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))
		890	break;
		891
		892	if (QUERY_FLAG (op, FLAG_IS_FLOOR)
		893	|| QUERY_FLAG (op, FLAG_OBJ_ORIGINAL)
		894	|| QUERY_FLAG (op, FLAG_OBJ_SAVE_ON_OVL)
		895	|| QUERY_FLAG (op, FLAG_UNIQUE)
		896	|| QUERY_FLAG (op, FLAG_OVERLAY_FLOOR)
		897	|| QUERY_FLAG (op, FLAG_UNPAID)
		898	|| op->is_alive ())
		899	; // do not decay
		900	else if (op->is_weapon ())
1307	{	901	{
1308	next = op->above;	902	op->stats.dam--;
1309	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))	903	if (op->stats.dam < 0)
1310	unique = 1;	904	destroy = 1;
1311	if (op->head == NULL && (QUERY_FLAG (op, FLAG_UNIQUE) || unique))
1312	{
1313	clean_object (op);
1314	if (QUERY_FLAG (op, FLAG_IS_LINKED))
1315	remove_button_link (op);
1316	remove_ob (op);
1317	free_object (op);
1318	}	905	}
		906	else if (op->is_armor ())
		907	{
		908	op->stats.ac--;
		909	if (op->stats.ac < 0)
		910	destroy = 1;
		911	}
		912	else if (op->type == FOOD)
		913	{
		914	op->stats.food -= rndm (5, 20);
		915	if (op->stats.food < 0)
		916	destroy = 1;
		917	}
		918	else
		919	{
		920	int mat = op->materials;
		921
		922	if (mat & M_PAPER
		923	|| mat & M_LEATHER
		924	|| mat & M_WOOD
		925	|| mat & M_ORGANIC
		926	|| mat & M_CLOTH
		927	|| mat & M_LIQUID
		928	|| (mat & M_IRON && rndm (1, 5) == 1)
		929	|| (mat & M_GLASS && rndm (1, 2) == 1)
		930	|| ((mat & M_STONE || mat & M_ADAMANT) && rndm (1, 10) == 1)
		931	|| ((mat & M_SOFT_METAL || mat & M_BONE) && rndm (1, 3) == 1)
		932	|| (mat & M_ICE && temp > 32))
		933	destroy = 1;
		934	}
		935
		936	/* adjust overall chance below */
		937	if (destroy && rndm (0, 1))
		938	op->destroy ();
		939	}
		940	}
		941
		942	/*
		943	* Updates every button on the map (by calling update_button() for them).
		944	*/
		945	void
		946	maptile::update_buttons ()
		947	{
		948	for (oblinkpt *obp = buttons; obp; obp = obp->next)
		949	for (objectlink *ol = obp->link; ol; ol = ol->next)
		950	{
		951	if (!ol->ob)
		952	{
		953	LOG (llevError, "Internal error in update_button (%s (%dx%d), connected %ld).\n",
		954	ol->ob ? (const char *) ol->ob->name : "null", ol->ob ? ol->ob->x : -1, ol->ob ? ol->ob->y : -1, obp->value);
		955	continue;
		956	}
		957
		958	if (ol->ob->type == BUTTON || ol->ob->type == PEDESTAL)
		959	{
		960	update_button (ol->ob);
		961	break;
1319	}	962	}
1320	}	963	}
1321	}	964	}
1322
1323
1324	/*
1325	* Loads unique objects from file(s) into the map which is in memory
1326	* m is the map to load unique items into.
1327	*/
1328	static void
1329	load_unique_objects (maptile *m)
1330	{
1331	int count;
1332	char firstname[MAX_BUF];
1333
1334	for (count = 0; count < 10; count++)
1335	{
1336	sprintf (firstname, "%s.v%02d", create_items_path (m->path), count);
1337	if (!access (firstname, R_OK))
1338	break;
1339	}
1340	/* If we get here, we did not find any map */
1341	if (count == 10)
1342	return;
1343
1344	object_thawer thawer (firstname);
1345
1346	if (!thawer)
1347	return;
1348
1349	m->in_memory = MAP_LOADING;
1350	if (m->tmpname == NULL) /* if we have loaded unique items from */
1351	delete_unique_items (m); /* original map before, don't duplicate them */
1352	load_objects (m, thawer, 0);
1353
1354	m->in_memory = MAP_IN_MEMORY;
1355	}
1356
1357
1358	/*
1359	* Saves a map to file. If flag is set, it is saved into the same
1360	* file it was (originally) loaded from. Otherwise a temporary
1361	* filename will be genarated, and the file will be stored there.
1362	* The temporary filename will be stored in the maptileure.
1363	* If the map is unique, we also save to the filename in the map
1364	* (this should have been updated when first loaded)
1365	*/
1366
1367	int
1368	new_save_map (maptile *m, int flag)
1369	{
1370	char filename[MAX_BUF], buf[MAX_BUF], shop[MAX_BUF];
1371	int i;
1372
1373	if (flag && !*m->path)
1374	{
1375	LOG (llevError, "Tried to save map without path.\n");
1376	return -1;
1377	}
1378
1379	if (flag || (m->unique) || (m->templatemap))
1380	{
1381	if (!m->unique && !m->templatemap)
1382	{ /* flag is set */
1383	if (flag == 2)
1384	strcpy (filename, create_overlay_pathname (m->path));
1385	else
1386	strcpy (filename, create_pathname (m->path));
1387	}
1388	else
1389	strcpy (filename, m->path);
1390
1391	make_path_to_file (filename);
1392	}
1393	else
1394	{
1395	if (!m->tmpname)
1396	m->tmpname = tempnam_local (settings.tmpdir, NULL);
1397
1398	strcpy (filename, m->tmpname);
1399	}
1400
1401	LOG (llevDebug, "Saving map %s to %s\n", m->path, filename);
1402	m->in_memory = MAP_SAVING;
1403
1404	object_freezer freezer;
1405
1406	/* legacy */
1407	fprintf (freezer, "arch map\n");
1408	if (m->name)
1409	fprintf (freezer, "name %s\n", m->name);
1410	if (!flag)
1411	fprintf (freezer, "swap_time %d\n", m->swap_time);
1412	if (m->reset_timeout)
1413	fprintf (freezer, "reset_timeout %d\n", m->reset_timeout);
1414	if (m->fixed_resettime)
1415	fprintf (freezer, "fixed_resettime %d\n", m->fixed_resettime);
1416	/* we unfortunately have no idea if this is a value the creator set
1417	* or a difficulty value we generated when the map was first loaded
1418	*/
1419	if (m->difficulty)
1420	fprintf (freezer, "difficulty %d\n", m->difficulty);
1421	if (m->region)
1422	fprintf (freezer, "region %s\n", m->region->name);
1423	if (m->shopitems)
1424	{
1425	print_shop_string (m, shop);
1426	fprintf (freezer, "shopitems %s\n", shop);
1427	}
1428	if (m->shopgreed)
1429	fprintf (freezer, "shopgreed %f\n", m->shopgreed);
1430	#ifndef WIN32
1431	if (m->shopmin)
1432	fprintf (freezer, "shopmin %llu\n", m->shopmin);
1433	if (m->shopmax)
1434	fprintf (freezer, "shopmax %llu\n", m->shopmax);
1435	#else
1436	if (m->shopmin)
1437	fprintf (freezer, "shopmin %I64u\n", m->shopmin);
1438	if (m->shopmax)
1439	fprintf (freezer, "shopmax %I64u\n", m->shopmax);
1440	#endif
1441	if (m->shoprace)
1442	fprintf (freezer, "shoprace %s\n", m->shoprace);
1443	if (m->darkness)
1444	fprintf (freezer, "darkness %d\n", m->darkness);
1445	if (m->width)
1446	fprintf (freezer, "width %d\n", m->width);
1447	if (m->height)
1448	fprintf (freezer, "height %d\n", m->height);
1449	if (m->enter_x)
1450	fprintf (freezer, "enter_x %d\n", m->enter_x);
1451	if (m->enter_y)
1452	fprintf (freezer, "enter_y %d\n", m->enter_y);
1453	if (m->msg)
1454	fprintf (freezer, "msg\n%sendmsg\n", m->msg);
1455	if (m->maplore)
1456	fprintf (freezer, "maplore\n%sendmaplore\n", m->maplore);
1457	if (m->unique)
1458	fprintf (freezer, "unique %d\n", m->unique);
1459	if (m->templatemap)
1460	fprintf (freezer, "template %d\n", m->templatemap);
1461	if (m->outdoor)
1462	fprintf (freezer, "outdoor %d\n", m->outdoor);
1463	if (m->temp)
1464	fprintf (freezer, "temp %d\n", m->temp);
1465	if (m->pressure)
1466	fprintf (freezer, "pressure %d\n", m->pressure);
1467	if (m->humid)
1468	fprintf (freezer, "humid %d\n", m->humid);
1469	if (m->windspeed)
1470	fprintf (freezer, "windspeed %d\n", m->windspeed);
1471	if (m->winddir)
1472	fprintf (freezer, "winddir %d\n", m->winddir);
1473	if (m->sky)
1474	fprintf (freezer, "sky %d\n", m->sky);
1475	if (m->nosmooth)
1476	fprintf (freezer, "nosmooth %d\n", m->nosmooth);
1477
1478	/* Save any tiling information, except on overlays */
1479	if (flag != 2)
1480	for (i = 0; i < 4; i++)
1481	if (m->tile_path[i])
1482	fprintf (freezer, "tile_path_%d %s\n", i + 1, m->tile_path[i]);
1483
1484	freezer.put (m);
1485	fprintf (freezer, "end\n");
1486
1487	/* In the game save unique items in the different file, but
1488	* in the editor save them to the normal map file.
1489	* If unique map, save files in the proper destination (set by
1490	* player)
1491	*/
1492	if ((flag == 0 || flag == 2) && !m->unique && !m->templatemap)
1493	{
1494	object_freezer unique;
1495
1496	if (flag == 2)
1497	save_objects (m, freezer, unique, 2);
1498	else
1499	save_objects (m, freezer, unique, 0);
1500
1501	sprintf (buf, "%s.v00", create_items_path (m->path));
1502
1503	unique.save (buf);
1504	}
1505	else
1506	{ /* save same file when not playing, like in editor */
1507	save_objects (m, freezer, freezer, 0);
1508	}
1509
1510	freezer.save (filename);
1511
1512	return 0;
1513	}
1514
1515
1516	/*
1517	* Remove and free all objects in the inventory of the given object.
1518	* object.c ?
1519	*/
1520
1521	void
1522	clean_object (object *op)
1523	{
1524	object *tmp, *next;
1525
1526	for (tmp = op->inv; tmp; tmp = next)
1527	{
1528	next = tmp->below;
1529	clean_object (tmp);
1530	if (QUERY_FLAG (tmp, FLAG_IS_LINKED))
1531	remove_button_link (tmp);
1532	remove_ob (tmp);
1533	free_object (tmp);
1534	}
1535	}
1536
1537	/*
1538	* Remove and free all objects in the given map.
1539	*/
1540
1541	void
1542	free_all_objects (maptile *m)
1543	{
1544	int i, j;
1545	object *op;
1546
1547	for (i = 0; i < MAP_WIDTH (m); i++)
1548	for (j = 0; j < MAP_HEIGHT (m); j++)
1549	{
1550	object *previous_obj = NULL;
1551
1552	while ((op = GET_MAP_OB (m, i, j)) != NULL)
1553	{
1554	if (op == previous_obj)
1555	{
1556	LOG (llevDebug, "free_all_objects: Link error, bailing out.\n");
1557	break;
1558	}
1559	previous_obj = op;
1560	if (op->head != NULL)
1561	op = op->head;
1562
1563	/* If the map isn't in memory, free_object will remove and
1564	* free objects in op's inventory. So let it do the job.
1565	*/
1566	if (m->in_memory == MAP_IN_MEMORY)
1567	clean_object (op);
1568	remove_ob (op);
1569	free_object (op);
1570	}
1571	}
1572	}
1573
1574	/*
1575	* Frees everything allocated by the given maptileure.
1576	* don't free tmpname - our caller is left to do that
1577	*/
1578
1579	void
1580	free_map (maptile *m, int flag)
1581	{
1582	int i;
1583
1584	if (!m->in_memory)
1585	{
1586	LOG (llevError, "Trying to free freed map.\n");
1587	return;
1588	}
1589	if (flag && m->spaces)
1590	free_all_objects (m);
1591	if (m->name)
1592	FREE_AND_CLEAR (m->name);
1593	if (m->spaces)
1594	FREE_AND_CLEAR (m->spaces);
1595	if (m->msg)
1596	FREE_AND_CLEAR (m->msg);
1597	if (m->maplore)
1598	FREE_AND_CLEAR (m->maplore);
1599	if (m->shopitems)
1600	delete[]m->shopitems;
1601	m->shopitems = 0;
1602	if (m->shoprace)
1603	FREE_AND_CLEAR (m->shoprace);
1604	if (m->buttons)
1605	free_objectlinkpt (m->buttons);
1606	m->buttons = NULL;
1607	for (i = 0; i < 4; i++)
1608	{
1609	if (m->tile_path[i])
1610	FREE_AND_CLEAR (m->tile_path[i]);
1611	m->tile_map[i] = NULL;
1612	}
1613	m->in_memory = MAP_SWAPPED;
1614	}
1615
1616	/*
1617	* function: vanish maptile
1618	* m : pointer to maptile, if NULL no action
1619	* this deletes all the data on the map (freeing pointers)
1620	* and then removes this map from the global linked list of maps.
1621	*/
1622
1623	void
1624	delete_map (maptile *m)
1625	{
1626	maptile *tmp, *last;
1627	int i;
1628
1629	if (!m)
1630	return;
1631
1632	m->clear ();
1633
1634	if (m->in_memory == MAP_IN_MEMORY)
1635	{
1636	/* change to MAP_SAVING, even though we are not,
1637	* so that remove_ob doesn't do as much work.
1638	*/
1639	m->in_memory = MAP_SAVING;
1640	free_map (m, 1);
1641	}
1642	/* move this out of free_map, since tmpname can still be needed if
1643	* the map is swapped out.
1644	*/
1645	if (m->tmpname)
1646	{
1647	free (m->tmpname);
1648	m->tmpname = NULL;
1649	}
1650	last = NULL;
1651	/* We need to look through all the maps and see if any maps
1652	* are pointing at this one for tiling information. Since
1653	* tiling can be assymetric, we just can not look to see which
1654	* maps this map tiles with and clears those.
1655	*/
1656	for (tmp = first_map; tmp != NULL; tmp = tmp->next)
1657	{
1658	if (tmp->next == m)
1659	last = tmp;
1660
1661	/* This should hopefully get unrolled on a decent compiler */
1662	for (i = 0; i < 4; i++)
1663	if (tmp->tile_map[i] == m)
1664	tmp->tile_map[i] = NULL;
1665	}
1666
1667	/* If last is null, then this should be the first map in the list */
1668	if (!last)
1669	{
1670	if (m == first_map)
1671	first_map = m->next;
1672	else
1673	/* m->path is a static char, so should hopefully still have
1674	* some useful data in it.
1675	*/
1676	LOG (llevError, "delete_map: Unable to find map %s in list\n", m->path);
1677	}
1678	else
1679	last->next = m->next;
1680
1681	delete m;
1682	}
1683
1684
1685
1686	/*
1687	* Makes sure the given map is loaded and swapped in.
1688	* name is path name of the map.
1689	* flags meaning:
1690	* 0x1 (MAP_FLUSH): flush the map - always load from the map directory,
1691	* and don't do unique items or the like.
1692	* 0x2 (MAP_PLAYER_UNIQUE) - this is a unique map for each player.
1693	* dont do any more name translation on it.
1694	*
1695	* Returns a pointer to the given map.
1696	*/
1697
1698	maptile *
1699	ready_map_name (const char *name, int flags)
1700	{
1701	maptile *m;
1702
1703	if (!name)
1704	return (NULL);
1705
1706	/* Have we been at this level before? */
1707	m = has_been_loaded (name);
1708
1709	/* Map is good to go, so just return it */
1710	if (m && (m->in_memory == MAP_LOADING || m->in_memory == MAP_IN_MEMORY))
1711	{
1712	return m;
1713	}
1714
1715	/* unique maps always get loaded from their original location, and never
1716	* a temp location. Likewise, if map_flush is set, or we have never loaded
1717	* this map, load it now. I removed the reset checking from here -
1718	* it seems the probability of a player trying to enter a map that should
1719	* reset but hasn't yet is quite low, and removing that makes this function
1720	* a bit cleaner (and players probably shouldn't rely on exact timing for
1721	* resets in any case - if they really care, they should use the 'maps command.
1722	*/
1723	if ((flags & (MAP_FLUSH | MAP_PLAYER_UNIQUE)) || !m)
1724	{
1725
1726	/* first visit or time to reset */
1727	if (m)
1728	{
1729	clean_tmp_map (m); /* Doesn't make much difference */
1730	delete_map (m);
1731	}
1732
1733	/* create and load a map */
1734	if (flags & MAP_PLAYER_UNIQUE)
1735	LOG (llevDebug, "Trying to load map %s.\n", name);
1736	else
1737	LOG (llevDebug, "Trying to load map %s.\n", create_pathname (name));
1738
1739	//eval_pv ("$x = Event::time", 1);//D
1740	if (!(m = load_original_map (name, (flags & MAP_PLAYER_UNIQUE))))
1741	return (NULL);
1742	//eval_pv ("warn \"LOAD \", Event::time - $x", 1);//D
1743
1744	fix_auto_apply (m); /* Chests which open as default */
1745
1746	/* If a player unique map, no extra unique object file to load.
1747	* if from the editor, likewise.
1748	*/
1749	if (!(flags & (MAP_FLUSH | MAP_PLAYER_UNIQUE)))
1750	load_unique_objects (m);
1751
1752	if (!(flags & (MAP_FLUSH | MAP_PLAYER_UNIQUE | MAP_OVERLAY)))
1753	{
1754	m = load_overlay_map (name, m);
1755	if (m == NULL)
1756	return NULL;
1757	}
1758
1759	if (flags & MAP_PLAYER_UNIQUE)
1760	INVOKE_MAP (SWAPIN, m);
1761
1762	}
1763	else
1764	{
1765	/* If in this loop, we found a temporary map, so load it up. */
1766
1767	m = load_temporary_map (m);
1768	if (m == NULL)
1769	return NULL;
1770	load_unique_objects (m);
1771
1772	clean_tmp_map (m);
1773	m->in_memory = MAP_IN_MEMORY;
1774	/* tempnam() on sun systems (probably others) uses malloc
1775	* to allocated space for the string. Free it here.
1776	* In some cases, load_temporary_map above won't find the
1777	* temporary map, and so has reloaded a new map. If that
1778	* is the case, tmpname is now null
1779	*/
1780	if (m->tmpname)
1781	free (m->tmpname);
1782	m->tmpname = NULL;
1783	/* It's going to be saved anew anyway */
1784	}
1785
1786	/* Below here is stuff common to both first time loaded maps and
1787	* temp maps.
1788	*/
1789
1790	decay_objects (m); /* start the decay */
1791	/* In case other objects press some buttons down */
1792	update_buttons (m);
1793	if (m->outdoor)
1794	set_darkness_map (m);
1795	/* run the weather over this map */
1796	weather_effect (name);
1797	return m;
1798	}
1799
1800		965
1801	/*	966	/*
1802	* This routine is supposed to find out the difficulty of the map.	967	* This routine is supposed to find out the difficulty of the map.
1803	* difficulty does not have a lot to do with character level,	968	* difficulty does not have a lot to do with character level,
1804	* but does have a lot to do with treasure on the map.	969	* but does have a lot to do with treasure on the map.
…		…
1806	* Difficulty can now be set by the map creature. If the value stored	971	* Difficulty can now be set by the map creature. If the value stored
1807	* in the map is zero, then use this routine. Maps should really	972	* in the map is zero, then use this routine. Maps should really
1808	* have a difficulty set than using this function - human calculation	973	* have a difficulty set than using this function - human calculation
1809	* is much better than this functions guesswork.	974	* is much better than this functions guesswork.
1810	*/	975	*/
1811
1812	int	976	int
1813	calculate_difficulty (maptile *m)	977	maptile::estimate_difficulty () const
1814	{	978	{
1815	object *op;
1816	archetype *at;
1817	int x, y, i;
1818	long monster_cnt = 0;	979	long monster_cnt = 0;
1819	double avgexp = 0;	980	double avgexp = 0;
1820	sint64 total_exp = 0;	981	sint64 total_exp = 0;
1821		982
1822	if (MAP_DIFFICULTY (m))	983	for (mapspace *ms = spaces + size (); ms-- > spaces; )
1823	{	984	for (object *op = ms->bot; op; op = op->above)
1824	LOG (llevDebug, "Using stored map difficulty: %d\n", MAP_DIFFICULTY (m));
1825	return MAP_DIFFICULTY (m);
1826	}
1827
1828	for (x = 0; x < MAP_WIDTH (m); x++)
1829	for (y = 0; y < MAP_HEIGHT (m); y++)
1830	for (op = get_map_ob (m, x, y); op != NULL; op = op->above)
1831	{	985	{
1832	if (QUERY_FLAG (op, FLAG_MONSTER))	986	if (QUERY_FLAG (op, FLAG_MONSTER))
1833	{	987	{
1834	total_exp += op->stats.exp;	988	total_exp += op->stats.exp;
1835	monster_cnt++;	989	monster_cnt++;
1836	}	990	}
1837		991
1838	if (QUERY_FLAG (op, FLAG_GENERATOR))	992	if (QUERY_FLAG (op, FLAG_GENERATOR))
1839	{	993	{
1840	total_exp += op->stats.exp;	994	total_exp += op->stats.exp;
		995
1841	at = type_to_archetype (GENERATE_TYPE (op));	996	if (archetype *at = type_to_archetype (GENERATE_TYPE (op)))
1842
1843	if (at != NULL)
1844	total_exp += at->clone.stats.exp * 8;	997	total_exp += at->stats.exp * 8;
1845		998
1846	monster_cnt++;	999	monster_cnt++;
1847	}	1000	}
1848	}	1001	}
1849		1002
1850	avgexp = (double) total_exp / monster_cnt;	1003	avgexp = (double) total_exp / monster_cnt;
1851		1004
1852	for (i = 1; i <= settings.max_level; i++)	1005	for (int i = 1; i <= settings.max_level; i++)
1853	{
1854	if ((level_exp (i, 1) - level_exp (i - 1, 1)) > (100 * avgexp))	1006	if ((level_exp (i, 1) - level_exp (i - 1, 1)) > (100 * avgexp))
1855	{
1856	/* LOG(llevDebug, "Calculated difficulty for map: %s: %d\n", m->name, i); */
1857	return i;	1007	return i;
1858	}
1859	}
1860		1008
1861	return 1;	1009	return 1;
1862	}
1863
1864	void
1865	clean_tmp_map (maptile *m)
1866	{
1867	if (m->tmpname == NULL)
1868	return;
1869	INVOKE_MAP (CLEAN, m);
1870	(void) unlink (m->tmpname);
1871	}
1872
1873	void
1874	free_all_maps (void)
1875	{
1876	int real_maps = 0;
1877
1878	while (first_map)
1879	{
1880	/* I think some of the callers above before it gets here set this to be
1881	* saving, but we still want to free this data
1882	*/
1883	if (first_map->in_memory == MAP_SAVING)
1884	first_map->in_memory = MAP_IN_MEMORY;
1885	delete_map (first_map);
1886	real_maps++;
1887	}
1888	LOG (llevDebug, "free_all_maps: Freed %d maps\n", real_maps);
1889	}	1010	}
1890		1011
1891	/* change_map_light() - used to change map light level (darkness)	1012	/* change_map_light() - used to change map light level (darkness)
1892	* up or down. Returns true if successful. It should now be	1013	* up or down. Returns true if successful. It should now be
1893	* possible to change a value by more than 1.	1014	* possible to change a value by more than 1.
1894	* Move this from los.c to map.c since this is more related	1015	* Move this from los.c to map.c since this is more related
1895	* to maps than los.	1016	* to maps than los.
1896	* postive values make it darker, negative make it brighter	1017	* postive values make it darker, negative make it brighter
1897	*/	1018	*/
1898
1899	int	1019	int
1900	change_map_light (maptile *m, int change)	1020	maptile::change_map_light (int change)
1901	{	1021	{
1902	int new_level = m->darkness + change;	1022	int new_level = darkness + change;
1903		1023
1904	/* Nothing to do */	1024	/* Nothing to do */
1905	if (!change || (new_level <= 0 && m->darkness == 0) || (new_level >= MAX_DARKNESS && m->darkness >= MAX_DARKNESS))	1025	if (!change || (new_level <= 0 && darkness == 0) || (new_level >= MAX_DARKNESS && darkness >= MAX_DARKNESS))
1906	{
1907	return 0;	1026	return 0;
1908	}
1909		1027
1910	/* inform all players on the map */	1028	/* inform all players on the map */
1911	if (change > 0)	1029	if (change > 0)
1912	new_info_map (NDI_BLACK | NDI_UNIQUE, m, "It becomes darker.");	1030	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes darker.");
1913	else	1031	else
1914	new_info_map (NDI_BLACK | NDI_UNIQUE, m, "It becomes brighter.");	1032	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes brighter.");
1915		1033
1916	/* Do extra checking. since m->darkness is a unsigned value,	1034	/* Do extra checking. since darkness is a unsigned value,
1917	* we need to be extra careful about negative values.	1035	* we need to be extra careful about negative values.
1918	* In general, the checks below are only needed if change	1036	* In general, the checks below are only needed if change
1919	* is not +/-1	1037	* is not +/-1
1920	*/	1038	*/
1921	if (new_level < 0)	1039	if (new_level < 0)
1922	m->darkness = 0;	1040	darkness = 0;
1923	else if (new_level >= MAX_DARKNESS)	1041	else if (new_level >= MAX_DARKNESS)
1924	m->darkness = MAX_DARKNESS;	1042	darkness = MAX_DARKNESS;
1925	else	1043	else
1926	m->darkness = new_level;	1044	darkness = new_level;
1927		1045
1928	/* All clients need to get re-updated for the change */	1046	/* All clients need to get re-updated for the change */
1929	update_all_map_los (m);	1047	update_all_map_los (this);
1930	return 1;	1048	return 1;
1931	}	1049	}
1932
1933		1050
1934	/*	1051	/*
1935	* This function updates various attributes about a specific space	1052	* This function updates various attributes about a specific space
1936	* on the map (what it looks like, whether it blocks magic,	1053	* on the map (what it looks like, whether it blocks magic,
1937	* has a living creatures, prevents people from passing	1054	* has a living creatures, prevents people from passing
1938	* through, etc)	1055	* through, etc)
1939	*/	1056	*/
1940	void	1057	void
1941	update_position (maptile *m, int x, int y)	1058	mapspace::update_ ()
1942	{	1059	{
1943	object *tmp, *last = NULL;	1060	object *tmp, *last = 0;
1944	uint8 flags = 0, oldflags, light = 0, anywhere = 0;	1061	uint8 flags = P_UPTODATE, light = 0, anywhere = 0;
1945	New_Face *top, *floor, *middle;
1946	object *top_obj, *floor_obj, *middle_obj;
1947	MoveType move_block = 0, move_slow = 0, move_on = 0, move_off = 0, move_allow = 0;	1062	MoveType move_block = 0, move_slow = 0, move_on = 0, move_off = 0, move_allow = 0;
1948		1063
1949	oldflags = GET_MAP_FLAGS (m, x, y);	1064	//object *middle = 0;
1950	if (!(oldflags & P_NEED_UPDATE))	1065	//object *top = 0;
1951	{	1066	//object *floor = 0;
1952	LOG (llevDebug, "update_position called with P_NEED_UPDATE not set: %s (%d, %d)\n", m->path, x, y);	1067	// this seems to generate better code than using locals, above
1953	return;	1068	object *&top = faces_obj[0] = 0;
1954	}	1069	object *&middle = faces_obj[1] = 0;
		1070	object *&floor = faces_obj[2] = 0;
1955		1071
1956	middle = blank_face;
1957	top = blank_face;
1958	floor = blank_face;
1959
1960	middle_obj = NULL;
1961	top_obj = NULL;
1962	floor_obj = NULL;
1963
1964	for (tmp = get_map_ob (m, x, y); tmp; last = tmp, tmp = tmp->above)	1072	for (tmp = bot; tmp; last = tmp, tmp = tmp->above)
1965	{	1073	{
1966
1967	/* This could be made additive I guess (two lights better than	1074	/* This could be made additive I guess (two lights better than
1968	* one). But if so, it shouldn't be a simple additive - 2	1075	* one). But if so, it shouldn't be a simple additive - 2
1969	* light bulbs do not illuminate twice as far as once since	1076	* light bulbs do not illuminate twice as far as once since
1970	* it is a disapation factor that is squared (or is it cubed?)	1077	* it is a dissapation factor that is cubed.
1971	*/	1078	*/
1972	if (tmp->glow_radius > light)	1079	if (tmp->glow_radius > light)
1973	light = tmp->glow_radius;	1080	light = tmp->glow_radius;
1974		1081
1975	/* This call is needed in order to update objects the player	1082	/* This call is needed in order to update objects the player
…		…
1981	* Always put the player down for drawing.	1088	* Always put the player down for drawing.
1982	*/	1089	*/
1983	if (!tmp->invisible)	1090	if (!tmp->invisible)
1984	{	1091	{
1985	if ((tmp->type == PLAYER || QUERY_FLAG (tmp, FLAG_MONSTER)))	1092	if ((tmp->type == PLAYER || QUERY_FLAG (tmp, FLAG_MONSTER)))
1986	{
1987	top = tmp->face;
1988	top_obj = tmp;	1093	top = tmp;
1989	}
1990	else if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))	1094	else if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))
1991	{	1095	{
1992	/* If we got a floor, that means middle and top were below it,	1096	/* If we got a floor, that means middle and top were below it,
1993	* so should not be visible, so we clear them.	1097	* so should not be visible, so we clear them.
1994	*/	1098	*/
1995	middle = blank_face;	1099	middle = 0;
1996	top = blank_face;	1100	top = 0;
1997	floor = tmp->face;
1998	floor_obj = tmp;	1101	floor = tmp;
1999	}	1102	}
2000	/* Flag anywhere have high priority */	1103	/* Flag anywhere have high priority */
2001	else if (QUERY_FLAG (tmp, FLAG_SEE_ANYWHERE))	1104	else if (QUERY_FLAG (tmp, FLAG_SEE_ANYWHERE))
2002	{	1105	{
2003	middle = tmp->face;
2004
2005	middle_obj = tmp;	1106	middle = tmp;
2006	anywhere = 1;	1107	anywhere = 1;
2007	}	1108	}
2008	/* Find the highest visible face around. If equal	1109	/* Find the highest visible face around. If equal
2009	* visibilities, we still want the one nearer to the	1110	* visibilities, we still want the one nearer to the
2010	* top	1111	* top
2011	*/	1112	*/
2012	else if (middle == blank_face || (tmp->face->visibility > middle->visibility && !anywhere))	1113	else if (!middle || (::faces [tmp->face].visibility > ::faces [middle->face].visibility && !anywhere))
2013	{
2014	middle = tmp->face;
2015	middle_obj = tmp;	1114	middle = tmp;
2016	}
2017	}	1115	}
		1116
2018	if (tmp == tmp->above)	1117	if (tmp == tmp->above)
2019	{	1118	{
2020	LOG (llevError, "Error in structure of map\n");	1119	LOG (llevError, "Error in structure of map\n");
2021	exit (-1);	1120	exit (-1);
2022	}	1121	}
2023		1122
2024	move_slow |= tmp->move_slow;	1123	move_slow |= tmp->move_slow;
2025	move_block |= tmp->move_block;	1124	move_block |= tmp->move_block;
2026	move_on |= tmp->move_on;	1125	move_on |= tmp->move_on;
2027	move_off |= tmp->move_off;	1126	move_off |= tmp->move_off;
2028	move_allow |= tmp->move_allow;	1127	move_allow |= tmp->move_allow;
2029		1128
2030	if (QUERY_FLAG (tmp, FLAG_ALIVE))
2031	flags |= P_IS_ALIVE;
2032	if (QUERY_FLAG (tmp, FLAG_NO_MAGIC))
2033	flags |= P_NO_MAGIC;
2034	if (QUERY_FLAG (tmp, FLAG_DAMNED))
2035	flags |= P_NO_CLERIC;
2036	if (tmp->type == SAFE_GROUND)
2037	flags |= P_SAFE;
2038
2039	if (QUERY_FLAG (tmp, FLAG_BLOCKSVIEW))	1129	if (QUERY_FLAG (tmp, FLAG_BLOCKSVIEW)) flags |= P_BLOCKSVIEW;
2040	flags |= P_BLOCKSVIEW;	1130	if (QUERY_FLAG (tmp, FLAG_NO_MAGIC)) flags |= P_NO_MAGIC;
2041	} /* for stack of objects */	1131	if (tmp->type == PLAYER) flags |= P_PLAYER;
2042		1132	if (tmp->type == SAFE_GROUND) flags |= P_SAFE;
2043	/* we don't want to rely on this function to have accurate flags, but	1133	if (QUERY_FLAG (tmp, FLAG_ALIVE)) flags |= P_IS_ALIVE;
2044	* since we're already doing the work, we calculate them here.	1134	if (QUERY_FLAG (tmp, FLAG_DAMNED)) flags |= P_NO_CLERIC;
2045	* if they don't match, logic is broken someplace.
2046	*/
2047	if (((oldflags & ~(P_NEED_UPDATE | P_NO_ERROR)) != flags) && (!(oldflags & P_NO_ERROR)))
2048	{	1135	}
2049	LOG (llevDebug, "update_position: updated flags do not match old flags: %s (old=%d,new=%d) %x != %x\n",	1136
2050	m->path, x, y, (oldflags & ~P_NEED_UPDATE), flags);	1137	this->light = light;
2051	}	1138	this->flags_ = flags;
2052	SET_MAP_FLAGS (m, x, y, flags);	1139	this->move_block = move_block & ~move_allow;
2053	SET_MAP_MOVE_BLOCK (m, x, y, move_block & ~move_allow);	1140	this->move_on = move_on;
2054	SET_MAP_MOVE_ON (m, x, y, move_on);	1141	this->move_off = move_off;
2055	SET_MAP_MOVE_OFF (m, x, y, move_off);	1142	this->move_slow = move_slow;
2056	SET_MAP_MOVE_SLOW (m, x, y, move_slow);
2057		1143
2058	/* At this point, we have a floor face (if there is a floor),	1144	/* At this point, we have a floor face (if there is a floor),
2059	* and the floor is set - we are not going to touch it at	1145	* and the floor is set - we are not going to touch it at
2060	* this point.	1146	* this point.
2061	* middle contains the highest visibility face.	1147	* middle contains the highest visibility face.
…		…
2068	* middle face. This should not happen, as we already have the	1154	* middle face. This should not happen, as we already have the
2069	* else statement above so middle should not get set. OTOH, it	1155	* else statement above so middle should not get set. OTOH, it
2070	* may be possible for the faces to match but be different objects.	1156	* may be possible for the faces to match but be different objects.
2071	*/	1157	*/
2072	if (top == middle)	1158	if (top == middle)
2073	middle = blank_face;	1159	middle = 0;
2074		1160
2075	/* There are three posibilities at this point:	1161	/* There are three posibilities at this point:
2076	* 1) top face is set, need middle to be set.	1162	* 1) top face is set, need middle to be set.
2077	* 2) middle is set, need to set top.	1163	* 2) middle is set, need to set top.
2078	* 3) neither middle or top is set - need to set both.	1164	* 3) neither middle or top is set - need to set both.
…		…
2083	/* Once we get to a floor, stop, since we already have a floor object */	1169	/* Once we get to a floor, stop, since we already have a floor object */
2084	if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))	1170	if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))
2085	break;	1171	break;
2086		1172
2087	/* If two top faces are already set, quit processing */	1173	/* If two top faces are already set, quit processing */
2088	if ((top != blank_face) && (middle != blank_face))	1174	if (top && middle)
2089	break;	1175	break;
2090		1176
2091	/* Only show visible faces, unless its the editor - show all */	1177	/* Only show visible faces */
2092	if (!tmp->invisible || editor)	1178	if (!tmp->invisible)
2093	{	1179	{
2094	/* Fill in top if needed */	1180	/* Fill in top if needed */
2095	if (top == blank_face)	1181	if (!top)
2096	{	1182	{
2097	top = tmp->face;
2098	top_obj = tmp;	1183	top = tmp;
2099	if (top == middle)	1184	if (top == middle)
2100	middle = blank_face;	1185	middle = 0;
2101	}	1186	}
2102	else	1187	else
2103	{	1188	{
2104	/* top is already set - we should only get here if	1189	/* top is already set - we should only get here if
2105	* middle is not set	1190	* middle is not set
2106	*	1191	*
2107	* Set the middle face and break out, since there is nothing	1192	* Set the middle face and break out, since there is nothing
2108	* more to fill in. We don't check visiblity here, since	1193	* more to fill in. We don't check visiblity here, since
2109	*	1194	*
2110	*/	1195	*/
2111	if (tmp->face != top)	1196	if (tmp != top)
2112	{	1197	{
2113	middle = tmp->face;
2114	middle_obj = tmp;	1198	middle = tmp;
2115	break;	1199	break;
2116	}	1200	}
2117	}	1201	}
2118	}	1202	}
2119	}	1203	}
		1204
2120	if (middle == floor)	1205	if (middle == floor)
2121	middle = blank_face;	1206	middle = 0;
		1207
2122	if (top == middle)	1208	if (top == middle)
2123	middle = blank_face;	1209	middle = 0;
2124	SET_MAP_FACE (m, x, y, top, 0);
2125	if (top != blank_face)
2126	SET_MAP_FACE_OBJ (m, x, y, top_obj, 0);
2127	else
2128	SET_MAP_FACE_OBJ (m, x, y, NULL, 0);
2129	SET_MAP_FACE (m, x, y, middle, 1);
2130	if (middle != blank_face)
2131	SET_MAP_FACE_OBJ (m, x, y, middle_obj, 1);
2132	else
2133	SET_MAP_FACE_OBJ (m, x, y, NULL, 1);
2134	SET_MAP_FACE (m, x, y, floor, 2);
2135	if (floor != blank_face)
2136	SET_MAP_FACE_OBJ (m, x, y, floor_obj, 2);
2137	else
2138	SET_MAP_FACE_OBJ (m, x, y, NULL, 2);
2139	SET_MAP_LIGHT (m, x, y, light);
2140	}
2141		1210
2142		1211	#if 0
2143	void	1212	faces_obj [0] = top;
2144	set_map_reset_time (maptile *map)	1213	faces_obj [1] = middle;
2145	{	1214	faces_obj [2] = floor;
2146	int timeout;	1215	#endif
2147
2148	timeout = MAP_RESET_TIMEOUT (map);
2149	if (timeout <= 0)
2150	timeout = MAP_DEFAULTRESET;
2151	if (timeout >= MAP_MAXRESET)
2152	timeout = MAP_MAXRESET;
2153	MAP_WHEN_RESET (map) = seconds () + timeout;
2154	}	1216	}
2155		1217
2156	/* this updates the orig_map->tile_map[tile_num] value after loading	1218	uint64
2157	* the map. It also takes care of linking back the freshly loaded	1219	mapspace::volume () const
2158	* maps tile_map values if it tiles back to this one. It returns
2159	* the value of orig_map->tile_map[tile_num]. It really only does this
2160	* so that it is easier for calling functions to verify success.
2161	*/
2162
2163	static maptile *
2164	load_and_link_tiled_map (maptile *orig_map, int tile_num)
2165	{	1220	{
2166	int dest_tile = (tile_num + 2) % 4;	1221	uint64 vol = 0;
2167	char *path = path_combine_and_normalize (orig_map->path, orig_map->tile_path[tile_num]);
2168		1222
2169	orig_map->tile_map[tile_num] = ready_map_name (path, 0);	1223	for (object *op = top; op && !op->flag [FLAG_NO_PICK]; op = op->below)
		1224	vol += op->volume ();
2170		1225
2171	/* need to do a strcmp here as the orig_map->path is not a shared string */	1226	return vol;
2172	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))	1227	}
2173	orig_map->tile_map[tile_num]->tile_map[dest_tile] = orig_map;
2174		1228
2175	return orig_map->tile_map[tile_num];	1229	bool
		1230	maptile::tile_available (int dir, bool load)
		1231	{
		1232	if (!tile_path[dir])
		1233	return 0;
		1234
		1235	if (tile_map[dir] && (!load || tile_map[dir]->in_memory == MAP_IN_MEMORY))
		1236	return 1;
		1237
		1238	if ((tile_map[dir] = find_async (tile_path[dir], this, load)))
		1239	return 1;
		1240
		1241	return 0;
2176	}	1242	}
2177		1243
2178	/* this returns TRUE if the coordinates (x,y) are out of	1244	/* this returns TRUE if the coordinates (x,y) are out of
2179	* map m. This function also takes into account any	1245	* map m. This function also takes into account any
2180	* tiling considerations, loading adjacant maps as needed.	1246	* tiling considerations, loading adjacant maps as needed.
2181	* This is the function should always be used when it	1247	* This is the function should always be used when it
2182	* necessary to check for valid coordinates.	1248	* necessary to check for valid coordinates.
2183	* This function will recursively call itself for the	1249	* This function will recursively call itself for the
2184	* tiled maps.	1250	* tiled maps.
2185	*
2186	*
2187	*/	1251	*/
2188	int	1252	int
2189	out_of_map (maptile *m, int x, int y)	1253	out_of_map (maptile *m, int x, int y)
2190	{	1254	{
2191
2192	/* If we get passed a null map, this is obviously the	1255	/* If we get passed a null map, this is obviously the
2193	* case. This generally shouldn't happen, but if the	1256	* case. This generally shouldn't happen, but if the
2194	* map loads fail below, it could happen.	1257	* map loads fail below, it could happen.
2195	*/	1258	*/
2196	if (!m)	1259	if (!m)
2197	return 0;	1260	return 0;
2198		1261
2199	if (x < 0)	1262	if (x < 0)
2200	{	1263	{
2201	if (!m->tile_path[3])	1264	if (!m->tile_available (3, 0))
2202	return 1;	1265	return 1;
2203	if (!m->tile_map[3] || m->tile_map[3]->in_memory != MAP_IN_MEMORY)	1266
2204	{
2205	load_and_link_tiled_map (m, 3);
2206	}
2207	return (out_of_map (m->tile_map[3], x + MAP_WIDTH (m->tile_map[3]), y));	1267	return out_of_map (m->tile_map[3], x + m->tile_map[3]->width, y);
2208	}
2209	if (x >= MAP_WIDTH (m))
2210	{	1268	}
2211	if (!m->tile_path[1])	1269
		1270	if (x >= m->width)
		1271	{
		1272	if (!m->tile_available (1, 0))
2212	return 1;	1273	return 1;
2213	if (!m->tile_map[1] || m->tile_map[1]->in_memory != MAP_IN_MEMORY)	1274
2214	{
2215	load_and_link_tiled_map (m, 1);
2216	}
2217	return (out_of_map (m->tile_map[1], x - MAP_WIDTH (m), y));	1275	return out_of_map (m->tile_map[1], x - m->width, y);
2218	}	1276	}
		1277
2219	if (y < 0)	1278	if (y < 0)
2220	{	1279	{
2221	if (!m->tile_path[0])	1280	if (!m->tile_available (0, 0))
2222	return 1;	1281	return 1;
2223	if (!m->tile_map[0] || m->tile_map[0]->in_memory != MAP_IN_MEMORY)	1282
2224	{
2225	load_and_link_tiled_map (m, 0);
2226	}
2227	return (out_of_map (m->tile_map[0], x, y + MAP_HEIGHT (m->tile_map[0])));	1283	return out_of_map (m->tile_map[0], x, y + m->tile_map[0]->height);
2228	}
2229	if (y >= MAP_HEIGHT (m))
2230	{	1284	}
2231	if (!m->tile_path[2])	1285
		1286	if (y >= m->height)
		1287	{
		1288	if (!m->tile_available (2, 0))
2232	return 1;	1289	return 1;
2233	if (!m->tile_map[2] || m->tile_map[2]->in_memory != MAP_IN_MEMORY)	1290
2234	{
2235	load_and_link_tiled_map (m, 2);
2236	}
2237	return (out_of_map (m->tile_map[2], x, y - MAP_HEIGHT (m)));	1291	return out_of_map (m->tile_map[2], x, y - m->height);
2238	}	1292	}
2239		1293
2240	/* Simple case - coordinates are within this local	1294	/* Simple case - coordinates are within this local
2241	* map.	1295	* map.
2242	*/	1296	*/
…		…
2245		1299
2246	/* This is basically the same as out_of_map above, but	1300	/* This is basically the same as out_of_map above, but
2247	* instead we return NULL if no map is valid (coordinates	1301	* instead we return NULL if no map is valid (coordinates
2248	* out of bounds and no tiled map), otherwise it returns	1302	* out of bounds and no tiled map), otherwise it returns
2249	* the map as that the coordinates are really on, and	1303	* the map as that the coordinates are really on, and
2250	* updates x and y to be the localized coordinates.	1304	* updates x and y to be the localised coordinates.
2251	* Using this is more efficient of calling out_of_map	1305	* Using this is more efficient of calling out_of_map
2252	* and then figuring out what the real map is	1306	* and then figuring out what the real map is
2253	*/	1307	*/
2254	maptile *	1308	maptile *
2255	get_map_from_coord (maptile *m, sint16 * x, sint16 * y)	1309	maptile::xy_find (sint16 &x, sint16 &y)
2256	{	1310	{
2257
2258	if (*x < 0)	1311	if (x < 0)
2259	{	1312	{
2260	if (!m->tile_path[3])	1313	if (!tile_available (3, 1))
2261	return NULL;	1314	return 0;
2262	if (!m->tile_map[3] || m->tile_map[3]->in_memory != MAP_IN_MEMORY)
2263	load_and_link_tiled_map (m, 3);
2264		1315
2265	*x += MAP_WIDTH (m->tile_map[3]);	1316	x += tile_map[3]->width;
2266	return (get_map_from_coord (m->tile_map[3], x, y));	1317	return tile_map[3]->xy_find (x, y);
2267	}
2268	if (*x >= MAP_WIDTH (m))
2269	{	1318	}
2270	if (!m->tile_path[1])	1319
		1320	if (x >= width)
		1321	{
		1322	if (!tile_available (1, 1))
2271	return NULL;	1323	return 0;
2272	if (!m->tile_map[1] || m->tile_map[1]->in_memory != MAP_IN_MEMORY)
2273	load_and_link_tiled_map (m, 1);
2274		1324
2275	*x -= MAP_WIDTH (m);	1325	x -= width;
2276	return (get_map_from_coord (m->tile_map[1], x, y));	1326	return tile_map[1]->xy_find (x, y);
2277	}	1327	}
		1328
2278	if (*y < 0)	1329	if (y < 0)
2279	{	1330	{
2280	if (!m->tile_path[0])	1331	if (!tile_available (0, 1))
2281	return NULL;	1332	return 0;
2282	if (!m->tile_map[0] || m->tile_map[0]->in_memory != MAP_IN_MEMORY)
2283	load_and_link_tiled_map (m, 0);
2284		1333
2285	*y += MAP_HEIGHT (m->tile_map[0]);	1334	y += tile_map[0]->height;
2286	return (get_map_from_coord (m->tile_map[0], x, y));	1335	return tile_map[0]->xy_find (x, y);
2287	}
2288	if (*y >= MAP_HEIGHT (m))
2289	{	1336	}
2290	if (!m->tile_path[2])	1337
		1338	if (y >= height)
		1339	{
		1340	if (!tile_available (2, 1))
2291	return NULL;	1341	return 0;
2292	if (!m->tile_map[2] || m->tile_map[2]->in_memory != MAP_IN_MEMORY)
2293	load_and_link_tiled_map (m, 2);
2294		1342
2295	*y -= MAP_HEIGHT (m);	1343	y -= height;
2296	return (get_map_from_coord (m->tile_map[2], x, y));	1344	return tile_map[2]->xy_find (x, y);
2297	}	1345	}
2298		1346
2299	/* Simple case - coordinates are within this local	1347	/* Simple case - coordinates are within this local
2300	* map.	1348	* map.
2301	*/	1349	*/
2302
2303	return m;	1350	return this;
2304	}	1351	}
2305		1352
2306	/**	1353	/**
2307	* Return whether map2 is adjacent to map1. If so, store the distance from	1354	* Return whether map2 is adjacent to map1. If so, store the distance from
2308	* map1 to map2 in dx/dy.	1355	* map1 to map2 in dx/dy.
2309	*/	1356	*/
2310	static int	1357	int
2311	adjacent_map (const maptile *map1, const maptile *map2, int *dx, int *dy)	1358	adjacent_map (const maptile *map1, const maptile *map2, int *dx, int *dy)
2312	{	1359	{
2313	if (!map1 || !map2)	1360	if (!map1 || !map2)
2314	return 0;	1361	return 0;
2315		1362
		1363	//TODO: this doesn't actually check corretcly when intermediate maps are not loaded
		1364	//fix: compare paths instead (this is likely faster, too!)
2316	if (map1 == map2)	1365	if (map1 == map2)
2317	{	1366	{
2318	*dx = 0;	1367	*dx = 0;
2319	*dy = 0;	1368	*dy = 0;
2320
2321	}	1369	}
2322	else if (map1->tile_map[0] == map2)	1370	else if (map1->tile_map[0] == map2)
2323	{ /* up */	1371	{ /* up */
2324	*dx = 0;	1372	*dx = 0;
2325	*dy = -MAP_HEIGHT (map2);	1373	*dy = -map2->height;
2326	}	1374	}
2327	else if (map1->tile_map[1] == map2)	1375	else if (map1->tile_map[1] == map2)
2328	{ /* right */	1376	{ /* right */
2329	*dx = MAP_WIDTH (map1);	1377	*dx = map1->width;
2330	*dy = 0;	1378	*dy = 0;
2331	}	1379	}
2332	else if (map1->tile_map[2] == map2)	1380	else if (map1->tile_map[2] == map2)
2333	{ /* down */	1381	{ /* down */
2334	*dx = 0;	1382	*dx = 0;
2335	*dy = MAP_HEIGHT (map1);	1383	*dy = map1->height;
2336	}	1384	}
2337	else if (map1->tile_map[3] == map2)	1385	else if (map1->tile_map[3] == map2)
2338	{ /* left */	1386	{ /* left */
2339	*dx = -MAP_WIDTH (map2);	1387	*dx = -map2->width;
2340	*dy = 0;	1388	*dy = 0;
2341
2342	}	1389	}
2343	else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[1] == map2)	1390	else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[1] == map2)
2344	{ /* up right */	1391	{ /* up right */
2345	*dx = MAP_WIDTH (map1->tile_map[0]);	1392	*dx = map1->tile_map[0]->width;
2346	*dy = -MAP_HEIGHT (map1->tile_map[0]);	1393	*dy = -map1->tile_map[0]->height;
2347	}	1394	}
2348	else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[3] == map2)	1395	else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[3] == map2)
2349	{ /* up left */	1396	{ /* up left */
2350	*dx = -MAP_WIDTH (map2);	1397	*dx = -map2->width;
2351	*dy = -MAP_HEIGHT (map1->tile_map[0]);	1398	*dy = -map1->tile_map[0]->height;
2352	}	1399	}
2353	else if (map1->tile_map[1] && map1->tile_map[1]->tile_map[0] == map2)	1400	else if (map1->tile_map[1] && map1->tile_map[1]->tile_map[0] == map2)
2354	{ /* right up */	1401	{ /* right up */
2355	*dx = MAP_WIDTH (map1);	1402	*dx = map1->width;
2356	*dy = -MAP_HEIGHT (map2);	1403	*dy = -map2->height;
2357	}	1404	}
2358	else if (map1->tile_map[1] && map1->tile_map[1]->tile_map[2] == map2)	1405	else if (map1->tile_map[1] && map1->tile_map[1]->tile_map[2] == map2)
2359	{ /* right down */	1406	{ /* right down */
2360	*dx = MAP_WIDTH (map1);	1407	*dx = map1->width;
2361	*dy = MAP_HEIGHT (map1->tile_map[1]);	1408	*dy = map1->tile_map[1]->height;
2362	}	1409	}
2363	else if (map1->tile_map[2] && map1->tile_map[2]->tile_map[1] == map2)	1410	else if (map1->tile_map[2] && map1->tile_map[2]->tile_map[1] == map2)
2364	{ /* down right */	1411	{ /* down right */
2365	*dx = MAP_WIDTH (map1->tile_map[2]);	1412	*dx = map1->tile_map[2]->width;
2366	*dy = MAP_HEIGHT (map1);	1413	*dy = map1->height;
2367	}	1414	}
2368	else if (map1->tile_map[2] && map1->tile_map[2]->tile_map[3] == map2)	1415	else if (map1->tile_map[2] && map1->tile_map[2]->tile_map[3] == map2)
2369	{ /* down left */	1416	{ /* down left */
2370	*dx = -MAP_WIDTH (map2);	1417	*dx = -map2->width;
2371	*dy = MAP_HEIGHT (map1);	1418	*dy = map1->height;
2372	}	1419	}
2373	else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[0] == map2)	1420	else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[0] == map2)
2374	{ /* left up */	1421	{ /* left up */
2375	*dx = -MAP_WIDTH (map1->tile_map[3]);	1422	*dx = -map1->tile_map[3]->width;
2376	*dy = -MAP_HEIGHT (map2);	1423	*dy = -map2->height;
2377	}	1424	}
2378	else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[2] == map2)	1425	else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[2] == map2)
2379	{ /* left down */	1426	{ /* left down */
2380	*dx = -MAP_WIDTH (map1->tile_map[3]);	1427	*dx = -map1->tile_map[3]->width;
2381	*dy = MAP_HEIGHT (map1->tile_map[3]);	1428	*dy = map1->tile_map[3]->height;
2382
2383	}	1429	}
2384	else	1430	else
2385	{ /* not "adjacent" enough */
2386	return 0;	1431	return 0;
2387	}
2388		1432
2389	return 1;	1433	return 1;
		1434	}
		1435
		1436	maptile *
		1437	maptile::xy_load (sint16 &x, sint16 &y)
		1438	{
		1439	maptile *map = xy_find (x, y);
		1440
		1441	if (map)
		1442	map->load_sync ();
		1443
		1444	return map;
		1445	}
		1446
		1447	maptile *
		1448	get_map_from_coord (maptile *m, sint16 *x, sint16 *y)
		1449	{
		1450	return m->xy_load (*x, *y);
2390	}	1451	}
2391		1452
2392	/* From map.c	1453	/* From map.c
2393	* This is used by get_player to determine where the other	1454	* This is used by get_player to determine where the other
2394	* creature is. get_rangevector takes into account map tiling,	1455	* creature is. get_rangevector takes into account map tiling,
2395	* so you just can not look the the map coordinates and get the	1456	* so you just can not look the the map coordinates and get the
2396	* righte value. distance_x/y are distance away, which	1457	* righte value. distance_x/y are distance away, which
2397	* can be negativbe. direction is the crossfire direction scheme	1458	* can be negative. direction is the crossfire direction scheme
2398	* that the creature should head. part is the part of the	1459	* that the creature should head. part is the part of the
2399	* monster that is closest.	1460	* monster that is closest.
2400	*	1461	*
2401	* get_rangevector looks at op1 and op2, and fills in the	1462	* get_rangevector looks at op1 and op2, and fills in the
2402	* structure for op1 to get to op2.	1463	* structure for op1 to get to op2.
…		…
2407	* be unexpected	1468	* be unexpected
2408	*	1469	*
2409	* currently, the only flag supported (0x1) is don't translate for	1470	* currently, the only flag supported (0x1) is don't translate for
2410	* closest body part of 'op1'	1471	* closest body part of 'op1'
2411	*/	1472	*/
2412
2413	void	1473	void
2414	get_rangevector (object *op1, object *op2, rv_vector * retval, int flags)	1474	get_rangevector (object *op1, object *op2, rv_vector * retval, int flags)
2415	{	1475	{
2416	if (!adjacent_map (op1->map, op2->map, &retval->distance_x, &retval->distance_y))	1476	if (!adjacent_map (op1->map, op2->map, &retval->distance_x, &retval->distance_y))
2417	{	1477	{
2418	/* be conservative and fill in _some_ data */	1478	/* be conservative and fill in _some_ data */
2419	retval->distance = 100000;	1479	retval->distance = 10000;
2420	retval->distance_x = 32767;	1480	retval->distance_x = 10000;
2421	retval->distance_y = 32767;	1481	retval->distance_y = 10000;
2422	retval->direction = 0;	1482	retval->direction = 0;
2423	retval->part = 0;	1483	retval->part = 0;
2424	}	1484	}
2425	else	1485	else
2426	{	1486	{
…		…
2431		1491
2432	best = op1;	1492	best = op1;
2433	/* If this is multipart, find the closest part now */	1493	/* If this is multipart, find the closest part now */
2434	if (!(flags & 0x1) && op1->more)	1494	if (!(flags & 0x1) && op1->more)
2435	{	1495	{
2436	object *tmp;
2437	int best_distance = retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y, tmpi;	1496	int best_distance = retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y, tmpi;
2438		1497
2439	/* we just take the offset of the piece to head to figure	1498	/* we just take the offset of the piece to head to figure
2440	* distance instead of doing all that work above again	1499	* distance instead of doing all that work above again
2441	* since the distance fields we set above are positive in the	1500	* since the distance fields we set above are positive in the
2442	* same axis as is used for multipart objects, the simply arithmetic	1501	* same axis as is used for multipart objects, the simply arithmetic
2443	* below works.	1502	* below works.
2444	*/	1503	*/
2445	for (tmp = op1->more; tmp != NULL; tmp = tmp->more)	1504	for (object *tmp = op1->more; tmp; tmp = tmp->more)
2446	{	1505	{
2447	tmpi = (op1->x - tmp->x + retval->distance_x) * (op1->x - tmp->x + retval->distance_x) +	1506	tmpi = (op1->x - tmp->x + retval->distance_x) * (op1->x - tmp->x + retval->distance_x) +
2448	(op1->y - tmp->y + retval->distance_y) * (op1->y - tmp->y + retval->distance_y);	1507	(op1->y - tmp->y + retval->distance_y) * (op1->y - tmp->y + retval->distance_y);
2449	if (tmpi < best_distance)	1508	if (tmpi < best_distance)
2450	{	1509	{
2451	best_distance = tmpi;	1510	best_distance = tmpi;
2452	best = tmp;	1511	best = tmp;
2453	}	1512	}
2454	}	1513	}
		1514
2455	if (best != op1)	1515	if (best != op1)
2456	{	1516	{
2457	retval->distance_x += op1->x - best->x;	1517	retval->distance_x += op1->x - best->x;
2458	retval->distance_y += op1->y - best->y;	1518	retval->distance_y += op1->y - best->y;
2459	}	1519	}
2460	}	1520	}
		1521
2461	retval->part = best;	1522	retval->part = best;
2462	retval->distance = isqrt (retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y);	1523	retval->distance = upos_max (abs (retval->distance_x), abs (retval->distance_y));
2463	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);	1524	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);
2464	}	1525	}
2465	}	1526	}
2466		1527
2467	/* this is basically the same as get_rangevector above, but instead of	1528	/* this is basically the same as get_rangevector above, but instead of
…		…
2472	* flags has no meaning for this function at this time - I kept it in to	1533	* flags has no meaning for this function at this time - I kept it in to
2473	* be more consistant with the above function and also in case they are needed	1534	* be more consistant with the above function and also in case they are needed
2474	* for something in the future. Also, since no object is pasted, the best	1535	* for something in the future. Also, since no object is pasted, the best
2475	* field of the rv_vector is set to NULL.	1536	* field of the rv_vector is set to NULL.
2476	*/	1537	*/
2477
2478	void	1538	void
2479	get_rangevector_from_mapcoord (const maptile *m, int x, int y, const object *op2, rv_vector * retval, int flags)	1539	get_rangevector_from_mapcoord (const maptile *m, int x, int y, const object *op2, rv_vector *retval, int flags)
2480	{	1540	{
2481	if (!adjacent_map (m, op2->map, &retval->distance_x, &retval->distance_y))	1541	if (!adjacent_map (m, op2->map, &retval->distance_x, &retval->distance_y))
2482	{	1542	{
2483	/* be conservative and fill in _some_ data */	1543	/* be conservative and fill in _some_ data */
2484	retval->distance = 100000;	1544	retval->distance = 100000;
…		…
2491	{	1551	{
2492	retval->distance_x += op2->x - x;	1552	retval->distance_x += op2->x - x;
2493	retval->distance_y += op2->y - y;	1553	retval->distance_y += op2->y - y;
2494		1554
2495	retval->part = NULL;	1555	retval->part = NULL;
2496	retval->distance = isqrt (retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y);	1556	retval->distance = idistance (retval->distance_x, retval->distance_y);
2497	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);	1557	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);
2498	}	1558	}
2499	}	1559	}
2500		1560
2501	/* Returns true of op1 and op2 are effectively on the same map	1561	/* Returns true of op1 and op2 are effectively on the same map
2502	* (as related to map tiling). Note that this looks for a path from	1562	* (as related to map tiling). Note that this looks for a path from
2503	* op1 to op2, so if the tiled maps are assymetric and op2 has a path	1563	* op1 to op2, so if the tiled maps are asymetric and op2 has a path
2504	* to op1, this will still return false.	1564	* to op1, this will still return false.
2505	* Note we only look one map out to keep the processing simple	1565	* Note we only look one map out to keep the processing simple
2506	* and efficient. This could probably be a macro.	1566	* and efficient. This could probably be a macro.
2507	* MSW 2001-08-05	1567	* MSW 2001-08-05
2508	*/	1568	*/
…		…
2511	{	1571	{
2512	int dx, dy;	1572	int dx, dy;
2513		1573
2514	return adjacent_map (op1->map, op2->map, &dx, &dy);	1574	return adjacent_map (op1->map, op2->map, &dx, &dy);
2515	}	1575	}
		1576
		1577	object *
		1578	maptile::insert (object *op, int x, int y, object *originator, int flags)
		1579	{
		1580	if (!op->flag [FLAG_REMOVED])
		1581	op->remove ();
		1582
		1583	return insert_ob_in_map_at (op, this, originator, flags, x, y);
		1584	}
		1585
		1586	region *
		1587	maptile::region (int x, int y) const
		1588	{
		1589	if (regions
		1590	&& regionmap
		1591	&& !OUT_OF_REAL_MAP (this, x, y))
		1592	if (struct region *reg = regionmap [regions [y * width + x]])
		1593	return reg;
		1594
		1595	if (default_region)
		1596	return default_region;
		1597
		1598	return ::region::default_region ();
		1599	}
		1600
		1601	/* picks a random object from a style map.
		1602	* Redone by MSW so it should be faster and not use static
		1603	* variables to generate tables.
		1604	*/
		1605	object *
		1606	maptile::pick_random_object () const
		1607	{
		1608	/* while returning a null object will result in a crash, that
		1609	* is actually preferable to an infinite loop. That is because
		1610	* most servers will automatically restart in case of crash.
		1611	* Change the logic on getting the random space - shouldn't make
		1612	* any difference, but this seems clearer to me.
		1613	*/
		1614	for (int i = 1000; --i;)
		1615	{
		1616	object *pick = at (rndm (width), rndm (height)).bot;
		1617
		1618	// do not prefer big monsters just because they are big.
		1619	if (pick && pick->head_ () == pick)
		1620	return pick->head_ ();
		1621	}
		1622
		1623	// instead of crashing in the unlikely(?) case, try to return *something*
		1624	return get_archetype ("blocked");
		1625	}
		1626
		1627	void
		1628	maptile::play_sound (faceidx sound, int x, int y) const
		1629	{
		1630	if (!sound)
		1631	return;
		1632
		1633	for_all_players (pl)
		1634	if (pl->ob->map == this)
		1635	if (client *ns = pl->ns)
		1636	{
		1637	int dx = x - pl->ob->x;
		1638	int dy = y - pl->ob->y;
		1639
		1640	int distance = idistance (dx, dy);
		1641
		1642	if (distance <= MAX_SOUND_DISTANCE)
		1643	ns->play_sound (sound, dx, dy);
		1644	}
		1645	}
		1646

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