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Comparing deliantra/server/common/map.C (file contents):
Revision 1.40 by root, Tue Dec 12 21:39:56 2006 UTC vs.
Revision 1.111 by elmex, Thu Jul 12 18:28:09 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	#include <unistd.h>	24	#include <unistd.h>
30		25
		26	#include "global.h"
		27	#include "funcpoint.h"
		28
		29	#include "loader.h"
		30
31	#include "path.h"	31	#include "path.h"
32
33
34	/*
35	* Returns the maptile which has a name matching the given argument.
36	* return NULL if no match is found.
37	*/
38
39	maptile *
40	has_been_loaded (const char *name)
41	{
42	maptile *map;
43
44	if (!name || !*name)
45	return 0;
46	for (map = first_map; map; map = map->next)
47	if (!strcmp (name, map->path))
48	break;
49	return (map);
50	}
51		32
52	/*	33	/*
53	* This makes a path absolute outside the world of Crossfire.	34	* This makes a path absolute outside the world of Crossfire.
54	* In other words, it prepends LIBDIR/MAPDIR/ to the given path	35	* In other words, it prepends LIBDIR/MAPDIR/ to the given path
55	* and returns the pointer to a static array containing the result.	36	* and returns the pointer to a static array containing the result.
56	* it really should be called create_mapname	37	* it really should be called create_mapname
57	*/	38	*/
58
59	const char *	39	const char *
60	create_pathname (const char *name)	40	create_pathname (const char *name)
61	{	41	{
62	static char buf[MAX_BUF];	42	static char buf[8192];
63
64	/* Why? having extra / doesn't confuse unix anyplace? Dependancies
65	* someplace else in the code? msw 2-17-97
66	*/
67	if (*name == '/')
68	sprintf (buf, "%s/%s%s", settings.datadir, settings.mapdir, name);
69	else
70	sprintf (buf, "%s/%s/%s", settings.datadir, settings.mapdir, name);	43	snprintf (buf, sizeof (buf), "%s/%s/%s", settings.datadir, settings.mapdir, name);
71	return (buf);	44	return buf;
72	}	45	}
73
74	/*
75	* same as create_pathname, but for the overlay maps.
76	*/
77
78	const char *
79	create_overlay_pathname (const char *name)
80	{
81	static char buf[MAX_BUF];
82
83	/* Why? having extra / doesn't confuse unix anyplace? Dependancies
84	* someplace else in the code? msw 2-17-97
85	*/
86	if (*name == '/')
87	sprintf (buf, "%s/%s%s", settings.localdir, settings.mapdir, name);
88	else
89	sprintf (buf, "%s/%s/%s", settings.localdir, settings.mapdir, name);
90	return (buf);
91	}
92
93	/*
94	* same as create_pathname, but for the template maps.
95	*/
96
97	const char *
98	create_template_pathname (const char *name)
99	{
100	static char buf[MAX_BUF];
101
102	/* Why? having extra / doesn't confuse unix anyplace? Dependancies
103	* someplace else in the code? msw 2-17-97
104	*/
105	if (*name == '/')
106	sprintf (buf, "%s/%s%s", settings.localdir, settings.templatedir, name);
107	else
108	sprintf (buf, "%s/%s/%s", settings.localdir, settings.templatedir, name);
109	return (buf);
110	}
111
112	/*
113	* This makes absolute path to the itemfile where unique objects
114	* will be saved. Converts '/' to '@'. I think it's essier maintain
115	* files than full directory structure, but if this is problem it can
116	* be changed.
117	*/
118	static const char *
119	create_items_path (const char *s)
120	{
121	static char buf[MAX_BUF];
122	char *t;
123
124	if (*s == '/')
125	s++;
126
127	sprintf (buf, "%s/%s/", settings.localdir, settings.uniquedir);
128
129	for (t = buf + strlen (buf); *s; s++, t++)
130	if (*s == '/')
131	*t = '@';
132	else
133	*t = *s;
134	*t = 0;
135	return (buf);
136	}
137
138		46
139	/*	47	/*
140	* This function checks if a file with the given path exists.	48	* This function checks if a file with the given path exists.
141	* -1 is returned if it fails, otherwise the mode of the file	49	* -1 is returned if it fails, otherwise the mode of the file
142	* is returned.	50	* is returned.
…		…
149	* the rest of the code only cares that the file is readable.	57	* the rest of the code only cares that the file is readable.
150	* when the editor goes away, the call to stat should probably be	58	* when the editor goes away, the call to stat should probably be
151	* replaced by an access instead (similar to the windows one, but	59	* replaced by an access instead (similar to the windows one, but
152	* that seems to be missing the prepend_dir processing	60	* that seems to be missing the prepend_dir processing
153	*/	61	*/
154
155	int	62	int
156	check_path (const char *name, int prepend_dir)	63	check_path (const char *name, int prepend_dir)
157	{	64	{
158	char buf[MAX_BUF];	65	char buf[MAX_BUF];
159		66
160	char *endbuf;	67	char *endbuf;
161	struct stat statbuf;	68	struct stat statbuf;
162	int mode = 0;	69	int mode = 0;
163		70
164	if (prepend_dir)	71	if (prepend_dir)
165	strcpy (buf, create_pathname (name));	72	assign (buf, create_pathname (name));
166	else	73	else
167	strcpy (buf, name);	74	assign (buf, name);
168		75
169	/* old method (strchr(buf, '\0')) seemd very odd to me -	76	/* old method (strchr(buf, '\0')) seemd very odd to me -
170	* this method should be equivalant and is clearer.	77	* this method should be equivalant and is clearer.
171	* Can not use strcat because we need to cycle through	78	* Can not use strcat because we need to cycle through
172	* all the names.	79	* all the names.
…		…
185	if ((statbuf.st_mode & S_IWGRP && getegid () == statbuf.st_gid) ||	92	if ((statbuf.st_mode & S_IWGRP && getegid () == statbuf.st_gid) ||
186	(statbuf.st_mode & S_IWUSR && geteuid () == statbuf.st_uid) || (statbuf.st_mode & S_IWOTH))	93	(statbuf.st_mode & S_IWUSR && geteuid () == statbuf.st_uid) || (statbuf.st_mode & S_IWOTH))
187	mode |= 2;	94	mode |= 2;
188		95
189	return (mode);	96	return (mode);
190	}
191
192	/*
193	* Prints out debug-information about a map.
194	* Dumping these at llevError doesn't seem right, but is
195	* necessary to make sure the information is in fact logged.
196	*/
197
198	void
199	dump_map (const maptile *m)
200	{
201	LOG (llevError, "Map %s status: %d.\n", m->path, m->in_memory);
202	LOG (llevError, "Size: %dx%d Start: %d,%d\n", MAP_WIDTH (m), MAP_HEIGHT (m), MAP_ENTER_X (m), MAP_ENTER_Y (m));
203
204	if (m->msg != NULL)
205	LOG (llevError, "Message:\n%s", m->msg);
206
207	if (m->maplore != NULL)
208	LOG (llevError, "Lore:\n%s", m->maplore);
209
210	if (m->tmpname != NULL)
211	LOG (llevError, "Tmpname: %s\n", m->tmpname);
212
213	LOG (llevError, "Difficulty: %d\n", m->difficulty);
214	LOG (llevError, "Darkness: %d\n", m->darkness);
215	}
216
217	/*
218	* Prints out debug-information about all maps.
219	* This basically just goes through all the maps and calls
220	* dump_map on each one.
221	*/
222
223	void
224	dump_all_maps (void)
225	{
226	maptile *m;
227
228	for (m = first_map; m != NULL; m = m->next)
229	{
230	dump_map (m);
231	}
232	}	97	}
233		98
234	/* This rolls up wall, blocks_magic, blocks_view, etc, all into	99	/* This rolls up wall, blocks_magic, blocks_view, etc, all into
235	* one function that just returns a P_.. value (see map.h)	100	* one function that just returns a P_.. value (see map.h)
236	* it will also do map translation for tiled maps, returning	101	* it will also do map translation for tiled maps, returning
…		…
240	* is needed. The case of not passing values is if we're just	105	* is needed. The case of not passing values is if we're just
241	* checking for the existence of something on those spaces, but	106	* checking for the existence of something on those spaces, but
242	* don't expect to insert/remove anything from those spaces.	107	* don't expect to insert/remove anything from those spaces.
243	*/	108	*/
244	int	109	int
245	get_map_flags (maptile *oldmap, maptile **newmap, sint16 x, sint16 y, sint16 * nx, sint16 * ny)	110	get_map_flags (maptile *oldmap, maptile **newmap, sint16 x, sint16 y, sint16 *nx, sint16 *ny)
246	{	111	{
247	sint16 newx, newy;	112	sint16 newx = x;
248	int retval = 0;	113	sint16 newy = y;
249	maptile *mp;
250		114
251	if (out_of_map (oldmap, x, y))	115	maptile *mp = get_map_from_coord (oldmap, &newx, &newy);
		116
		117	if (!mp)
252	return P_OUT_OF_MAP;	118	return P_OUT_OF_MAP;
253	newx = x;
254	newy = y;
255	mp = get_map_from_coord (oldmap, &newx, &newy);
256	if (mp != oldmap)
257	retval |= P_NEW_MAP;
258	if (newmap)
259	*newmap = mp;
260	if (nx)
261	*nx = newx;
262	if (ny)
263	*ny = newy;
264		119
265	retval |= mp->spaces[newx + mp->width * newy].flags;	120	if (newmap) *newmap = mp;
		121	if (nx) *nx = newx;
		122	if (ny) *ny = newy;
266		123
267	return retval;	124	return mp->at (newx, newy).flags () | (mp != oldmap ? P_NEW_MAP : 0);
268	}	125	}
269		126
270	/*	127	/*
271	* Returns true if the given coordinate is blocked except by the	128	* Returns true if the given coordinate is blocked except by the
272	* object passed is not blocking. This is used with	129	* object passed is not blocking. This is used with
…		…
295	}	152	}
296		153
297	/* Save some cycles - instead of calling get_map_flags(), just get the value	154	/* Save some cycles - instead of calling get_map_flags(), just get the value
298	* directly.	155	* directly.
299	*/	156	*/
300	mflags = m->spaces[sx + m->width * sy].flags;	157	mflags = m->at (sx, sy).flags ();
301		158
302	blocked = GET_MAP_MOVE_BLOCK (m, sx, sy);	159	blocked = GET_MAP_MOVE_BLOCK (m, sx, sy);
303		160
304	/* If space is currently not blocked by anything, no need to	161	/* If space is currently not blocked by anything, no need to
305	* go further. Not true for players - all sorts of special	162	* go further. Not true for players - all sorts of special
…		…
316	* let the player through (inventory checkers for example)	173	* let the player through (inventory checkers for example)
317	*/	174	*/
318	if (!(mflags & P_IS_ALIVE) && !OB_TYPE_MOVE_BLOCK (ob, blocked))	175	if (!(mflags & P_IS_ALIVE) && !OB_TYPE_MOVE_BLOCK (ob, blocked))
319	return 0;	176	return 0;
320		177
321	if (ob->head != NULL)
322	ob = ob->head;	178	ob = ob->head_ ();
323		179
324	/* We basically go through the stack of objects, and if there is	180	/* We basically go through the stack of objects, and if there is
325	* some other object that has NO_PASS or FLAG_ALIVE set, return	181	* some other object that has NO_PASS or FLAG_ALIVE set, return
326	* true. If we get through the entire stack, that must mean	182	* true. If we get through the entire stack, that must mean
327	* ob is blocking it, so return 0.	183	* ob is blocking it, so return 0.
328	*/	184	*/
329	for (tmp = GET_MAP_OB (m, sx, sy); tmp != NULL; tmp = tmp->above)	185	for (tmp = GET_MAP_OB (m, sx, sy); tmp; tmp = tmp->above)
330	{	186	{
331		187
332	/* This must be before the checks below. Code for inventory checkers. */	188	/* This must be before the checks below. Code for inventory checkers. */
333	if (tmp->type == CHECK_INV && OB_MOVE_BLOCK (ob, tmp))	189	if (tmp->type == CHECK_INV && OB_MOVE_BLOCK (ob, tmp))
334	{	190	{
…		…
357	else	213	else
358	{	214	{
359	/* Broke apart a big nasty if into several here to make	215	/* Broke apart a big nasty if into several here to make
360	* this more readable. first check - if the space blocks	216	* this more readable. first check - if the space blocks
361	* movement, can't move here.	217	* movement, can't move here.
362	* second - if a monster, can't move there, unles it is a	218	* second - if a monster, can't move there, unless it is a
363	* hidden dm	219	* hidden dm
364	*/	220	*/
365	if (OB_MOVE_BLOCK (ob, tmp))	221	if (OB_MOVE_BLOCK (ob, tmp))
366	return 1;	222	return 1;
367	if (QUERY_FLAG (tmp, FLAG_ALIVE) && tmp->head != ob && tmp != ob &&	223
368	tmp->type != DOOR && !(QUERY_FLAG (tmp, FLAG_WIZ) && tmp->contr->hidden))	224	if (tmp->flag [FLAG_ALIVE]
		225	&& tmp->head_ () != ob
		226	&& tmp != ob
		227	&& tmp->type != DOOR
		228	&& !(tmp->flag [FLAG_WIZ] && tmp->contr->hidden))
369	return 1;	229	return 1;
370	}	230	}
371		231
372	}	232	}
373	return 0;	233	return 0;
374	}	234	}
375
376		235
377	/*	236	/*
378	* Returns true if the given object can't fit in the given spot.	237	* Returns true if the given object can't fit in the given spot.
379	* This is meant for multi space objects - for single space objecs,	238	* This is meant for multi space objects - for single space objecs,
380	* just calling get_map_blocked and checking that against movement type	239	* just calling get_map_blocked and checking that against movement type
…		…
398	*	257	*
399	* Note this used to be arch_blocked, but with new movement	258	* Note this used to be arch_blocked, but with new movement
400	* code, we need to have actual object to check its move_type	259	* code, we need to have actual object to check its move_type
401	* against the move_block values.	260	* against the move_block values.
402	*/	261	*/
403
404	int	262	int
405	ob_blocked (const object *ob, maptile *m, sint16 x, sint16 y)	263	ob_blocked (const object *ob, maptile *m, sint16 x, sint16 y)
406	{	264	{
407	archetype *tmp;	265	archetype *tmp;
408	int flag;	266	int flag;
409	maptile *m1;	267	maptile *m1;
410	sint16 sx, sy;	268	sint16 sx, sy;
411		269
412	if (ob == NULL)	270	if (!ob)
413	{	271	{
414	flag = get_map_flags (m, &m1, x, y, &sx, &sy);	272	flag = get_map_flags (m, &m1, x, y, &sx, &sy);
415	if (flag & P_OUT_OF_MAP)	273	if (flag & P_OUT_OF_MAP)
416	return P_OUT_OF_MAP;	274	return P_OUT_OF_MAP;
417		275
418	/* don't have object, so don't know what types would block */	276	/* don't have object, so don't know what types would block */
419	return (GET_MAP_MOVE_BLOCK (m1, sx, sy));	277	return m1->at (sx, sy).move_block;
420	}	278	}
421		279
422	for (tmp = ob->arch; tmp != NULL; tmp = tmp->more)	280	for (tmp = ob->arch; tmp; tmp = (archetype *)tmp->more)
423	{	281	{
424	flag = get_map_flags (m, &m1, x + tmp->clone.x, y + tmp->clone.y, &sx, &sy);	282	flag = get_map_flags (m, &m1, x + tmp->x, y + tmp->y, &sx, &sy);
425		283
426	if (flag & P_OUT_OF_MAP)	284	if (flag & P_OUT_OF_MAP)
427	return P_OUT_OF_MAP;	285	return P_OUT_OF_MAP;
428	if (flag & P_IS_ALIVE)	286	if (flag & P_IS_ALIVE)
429	return P_IS_ALIVE;	287	return P_IS_ALIVE;
430		288
		289	mapspace &ms = m1->at (sx, sy);
		290
431	/* find_first_free_spot() calls this function. However, often	291	/* find_first_free_spot() calls this function. However, often
432	* ob doesn't have any move type (when used to place exits)	292	* ob doesn't have any move type (when used to place exits)
433	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.	293	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.
434	*/	294	*/
435		295
436	if (ob->move_type == 0 && GET_MAP_MOVE_BLOCK (m1, sx, sy) != MOVE_ALL)	296	if (ob->move_type == 0 && ms.move_block != MOVE_ALL)
437	continue;	297	continue;
438		298
439	/* Note it is intentional that we check ob - the movement type of the	299	/* Note it is intentional that we check ob - the movement type of the
440	* head of the object should correspond for the entire object.	300	* head of the object should correspond for the entire object.
441	*/	301	*/
442	if (OB_TYPE_MOVE_BLOCK (ob, GET_MAP_MOVE_BLOCK (m1, sx, sy)))	302	if (OB_TYPE_MOVE_BLOCK (ob, ms.move_block))
443	return AB_NO_PASS;	303	return P_NO_PASS;
444
445	}	304	}
		305
446	return 0;	306	return 0;
447	}	307	}
448		308
449	/* When the map is loaded, load_object does not actually insert objects	309	/* When the map is loaded, load_object does not actually insert objects
450	* into inventory, but just links them. What this does is go through	310	* into inventory, but just links them. What this does is go through
451	* and insert them properly.	311	* and insert them properly.
452	* The object 'container' is the object that contains the inventory.	312	* The object 'container' is the object that contains the inventory.
453	* This is needed so that we can update the containers weight.	313	* This is needed so that we can update the containers weight.
454	*/	314	*/
455
456	void	315	void
457	fix_container (object *container)	316	fix_container (object *container)
458	{	317	{
459	object *tmp = container->inv, *next;	318	object *tmp = container->inv, *next;
460		319
461	container->inv = NULL;	320	container->inv = 0;
462	while (tmp != NULL)	321	while (tmp)
463	{	322	{
464	next = tmp->below;	323	next = tmp->below;
465	if (tmp->inv)	324	if (tmp->inv)
466	fix_container (tmp);	325	fix_container (tmp);
		326
467	(void) insert_ob_in_ob (tmp, container);	327	insert_ob_in_ob (tmp, container);
468	tmp = next;	328	tmp = next;
469	}	329	}
		330
470	/* sum_weight will go through and calculate what all the containers are	331	/* sum_weight will go through and calculate what all the containers are
471	* carrying.	332	* carrying.
472	*/	333	*/
473	sum_weight (container);	334	sum_weight (container);
474	}	335	}
475		336
		337	void
		338	maptile::set_object_flag (int flag, int value)
		339	{
		340	if (!spaces)
		341	return;
		342
		343	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		344	for (object *tmp = ms->bot; tmp; tmp = tmp->above)
		345	tmp->flag [flag] = value;
		346	}
		347
476	/* link_multipart_objects go through all the objects on the map looking	348	/* link_multipart_objects go through all the objects on the map looking
477	* for objects whose arch says they are multipart yet according to the	349	* for objects whose arch says they are multipart yet according to the
478	* info we have, they only have the head (as would be expected when	350	* info we have, they only have the head (as would be expected when
479	* they are saved). We do have to look for the old maps that did save	351	* they are saved).
480	* the more sections and not re-add sections for them.
481	*/	352	*/
482		353	void
483	static void	354	maptile::link_multipart_objects ()
484	link_multipart_objects (maptile *m)
485	{	355	{
486	int x, y;	356	if (!spaces)
487	object *tmp, *op, *last, *above;	357	return;
488	archetype *at;
489		358
490	for (x = 0; x < MAP_WIDTH (m); x++)	359	for (mapspace *ms = spaces + size (); ms-- > spaces; )
491	for (y = 0; y < MAP_HEIGHT (m); y++)	360	{
492	for (tmp = get_map_ob (m, x, y); tmp != NULL; tmp = above)	361	object *op = ms->bot;
		362	while (op)
493	{	363	{
494	above = tmp->above;
495
496	/* already multipart - don't do anything more */	364	/* already multipart - don't do anything more */
497	if (tmp->head || tmp->more)	365	if (op->head_ () == op && !op->more && op->arch->more)
498	continue;
499
500	/* If there is nothing more to this object, this for loop
501	* won't do anything.
502	*/
503	for (at = tmp->arch->more, last = tmp; at != NULL; at = at->more, last = op)
504	{	366	{
505	op = arch_to_object (at);	367	op->remove ();
		368	op->expand_tail ();
506		369
507	/* update x,y coordinates */	370	// FIXME: INS_ON_TOP is just a workaround for the pentagram vs.
508	op->x += tmp->x;	371	// multi-tile monster bug, where INS_ABOVE_FLOOR_ONLY put the monsters
509	op->y += tmp->y;	372	// below the pentagrams... hopefully INS_ON_TOP doesn't break anything
510	op->head = tmp;	373	insert (op, op->x, op->y, 0, INS_NO_MERGE | INS_ON_TOP | INS_NO_WALK_ON);
511	op->map = m;	374
512	last->more = op;	375	op = ms->bot; // we are mutating the mapspace too much with INS_ON_TOP
513	op->name = tmp->name;	376	// so we have to reset the iteration through the mapspace
514	op->title = tmp->title;
515	/* we could link all the parts onto tmp, and then just
516	* call insert_ob_in_map once, but the effect is the same,
517	* as insert_ob_in_map will call itself with each part, and
518	* the coding is simpler to just to it here with each part.
519	*/	377	}
520	insert_ob_in_map (op, op->map, tmp, INS_NO_MERGE | INS_ABOVE_FLOOR_ONLY | INS_NO_WALK_ON);	378	else
521	} /* for at = tmp->arch->more */	379	op = op->above;
522	} /* for objects on this space */	380	}
		381	}
523	}	382	}
524		383
525	/*	384	/*
526	* Loads (ands parses) the objects into a given map from the specified	385	* Loads (ands parses) the objects into a given map from the specified
527	* file pointer.	386	* file pointer.
528	* mapflags is the same as we get with load_original_map
529	*/	387	*/
		388	bool
		389	maptile::_load_objects (object_thawer &f)
		390	{
		391	for (;;)
		392	{
		393	coroapi::cede_to_tick_every (100); // cede once in a while
		394
		395	switch (f.kw)
		396	{
		397	case KW_arch:
		398	if (object *op = object::read (f, this))
		399	{
		400	if (op->inv)
		401	sum_weight (op);
		402
		403	insert_ob_in_map (op, this, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ON_TOP | INS_MAP_LOAD);
		404	}
		405
		406	continue;
		407
		408	case KW_EOF:
		409	return true;
		410
		411	default:
		412	if (!f.parse_error ("map file"))
		413	return false;
		414	break;
		415	}
		416
		417	f.next ();
		418	}
		419
		420	return true;
		421	}
		422
530	void	423	void
531	load_objects (maptile *m, object_thawer & fp, int mapflags)	424	maptile::activate ()
532	{	425	{
533	int i, j;	426	active = true;
		427
		428	if (spaces)
		429	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		430	for (object *op = ms->bot; op; op = op->above)
		431	op->activate_recursive ();
		432	}
		433
		434	void
		435	maptile::deactivate ()
		436	{
		437	active = false;
		438
		439	if (spaces)
		440	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		441	for (object *op = ms->bot; op; op = op->above)
		442	op->deactivate_recursive ();
		443	}
		444
		445	bool
		446	maptile::_save_objects (object_freezer &f, int flags)
		447	{
		448	coroapi::cede_to_tick ();
		449
		450	if (flags & IO_HEADER)
		451	_save_header (f);
		452
		453	if (!spaces)
		454	return false;
		455
		456	for (int i = 0; i < size (); ++i)
		457	{
534	int unique;	458	int unique = 0;
535	object *op, *prev = NULL, *last_more = NULL, *otmp;	459	for (object *op = spaces [i].bot; op; op = op->above)
536
537	op = object::create ();
538	op->map = m; /* To handle buttons correctly */
539
540	while ((i = load_object (fp, op, mapflags)))
541	{
542	/* if the archetype for the object is null, means that we
543	* got an invalid object. Don't do anything with it - the game
544	* or editor will not be able to do anything with it either.
545	*/
546	if (op->arch == NULL)
547	{	460	{
548	LOG (llevDebug, "Discarding object without arch: %s\n", op->name ? (const char *) op->name : "(null)");	461	if (op->flag [FLAG_UNIQUE] && op->flag [FLAG_IS_FLOOR])
		462	unique = 1;
		463
		464	if (!op->can_map_save ())
549	continue;	465	continue;
		466
		467	if (unique || op->flag [FLAG_UNIQUE])
		468	{
		469	if (flags & IO_UNIQUES)
		470	op->write (f);
		471	}
		472	else if (flags & IO_OBJECTS)
		473	op->write (f);
550	}	474	}
551
552
553	switch (i)
554	{
555	case LL_NORMAL:
556	/* if we are loading an overlay, put the floors on the bottom */
557	if ((QUERY_FLAG (op, FLAG_IS_FLOOR) || QUERY_FLAG (op, FLAG_OVERLAY_FLOOR)) && mapflags & MAP_OVERLAY)
558	insert_ob_in_map (op, m, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ABOVE_FLOOR_ONLY | INS_MAP_LOAD);
559	else
560	insert_ob_in_map (op, m, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ON_TOP | INS_MAP_LOAD);
561
562	if (op->inv)
563	sum_weight (op);
564
565	prev = op, last_more = op;
566	break;
567
568	case LL_MORE:
569	insert_ob_in_map (op, m, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ABOVE_FLOOR_ONLY);
570	op->head = prev, last_more->more = op, last_more = op;
571	break;
572	}
573
574	if (mapflags & MAP_STYLE)
575	remove_from_active_list (op);
576
577	op = object::create ();
578	op->map = m;
579	}
580
581	for (i = 0; i < m->width; i++)
582	{	475	}
583	for (j = 0; j < m->height; j++)
584	{
585	unique = 0;
586	/* check for unique items, or unique squares */
587	for (otmp = get_map_ob (m, i, j); otmp; otmp = otmp->above)
588	{
589	if (QUERY_FLAG (otmp, FLAG_UNIQUE) || QUERY_FLAG (otmp, FLAG_OBJ_SAVE_ON_OVL))
590	unique = 1;
591	if (!(mapflags & (MAP_OVERLAY | MAP_PLAYER_UNIQUE) || unique))
592	SET_FLAG (otmp, FLAG_OBJ_ORIGINAL);
593	}
594	}
595	}
596		476
597	op->destroy ();	477	coroapi::cede_to_tick ();
598	link_multipart_objects (m);
599	}
600		478
601	/* This saves all the objects on the map in a non destructive fashion.	479	return true;
602	* Modified by MSW 2001-07-01 to do in a single pass - reduces code,	480	}
603	* and we only save the head of multi part objects - this is needed
604	* in order to do map tiling properly.
605	*/
606	void
607	save_objects (maptile *m, object_freezer & fp, object_freezer & fp2, int flag)
608	{
609	int i, j = 0, unique = 0;
610	object *op;
611		481
612	/* first pass - save one-part objects */	482	bool
613	for (i = 0; i < MAP_WIDTH (m); i++)	483	maptile::_load_objects (const char *path, bool skip_header)
614	for (j = 0; j < MAP_HEIGHT (m); j++)	484	{
		485	object_thawer f (path);
		486
		487	if (!f)
		488	return false;
		489
		490	f.next ();
		491
		492	if (skip_header)
		493	for (;;)
615	{	494	{
616	unique = 0;	495	keyword kw = f.kw;
617	for (op = get_map_ob (m, i, j); op; op = op->above)	496	f.skip ();
618	{	497	if (kw == KW_end)
619	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))	498	break;
620	unique = 1;	499	}
621		500
622	if (op->type == PLAYER)	501	return _load_objects (f);
623	{	502	}
624	LOG (llevDebug, "Player on map that is being saved\n");
625	continue;
626	}
627		503
628	if (op->head || op->owner)	504	bool
629	continue;	505	maptile::_save_objects (const char *path, int flags)
		506	{
		507	object_freezer freezer;
630		508
631	if (unique || QUERY_FLAG (op, FLAG_UNIQUE))	509	if (!_save_objects (freezer, flags))
632	save_object (fp2, op, 3);	510	return false;
633	else if (flag == 0 || (flag == 2 && (!QUERY_FLAG (op, FLAG_OBJ_ORIGINAL) && !QUERY_FLAG (op, FLAG_UNPAID))))
634	save_object (fp, op, 3);
635		511
636	} /* for this space */	512	return freezer.save (path);
637	} /* for this j */
638	}	513	}
639		514
640	maptile::maptile ()	515	maptile::maptile ()
641	{	516	{
642	in_memory = MAP_SWAPPED;	517	in_memory = MAP_SWAPPED;
		518
643	/* The maps used to pick up default x and y values from the	519	/* The maps used to pick up default x and y values from the
644	* map archetype. Mimic that behaviour.	520	* map archetype. Mimic that behaviour.
645	*/	521	*/
646	MAP_WIDTH (this) = 16;	522	width = 16;
647	MAP_HEIGHT (this) = 16;	523	height = 16;
648	MAP_RESET_TIMEOUT (this) = 0;	524	timeout = 300;
649	MAP_TIMEOUT (this) = 300;	525	max_nrof = 1000; // 1000 items of anything
650	MAP_ENTER_X (this) = 0;	526	max_volume = 2000000; // 2m³
651	MAP_ENTER_Y (this) = 0;
652	/*set part to -1 indicating conversion to weather map not yet done */
653	MAP_WORLDPARTX (this) = -1;
654	MAP_WORLDPARTY (this) = -1;
655	}	527	}
656		528
657	/*	529	maptile::maptile (int w, int h)
658	* Allocates, initialises, and returns a pointer to a maptile.
659	* Modified to no longer take a path option which was not being
660	* used anyways. MSW 2001-07-01
661	*/
662	maptile *
663	get_linked_map (void)
664	{	530	{
665	maptile *mp, *map = new maptile;	531	in_memory = MAP_SWAPPED;
666		532
667	for (mp = first_map; mp && mp->next; mp = mp->next);	533	width = w;
		534	height = h;
		535	reset_timeout = 0;
		536	timeout = 300;
		537	enter_x = 0;
		538	enter_y = 0;
668		539
669	if (mp == NULL)	540	alloc ();
670	first_map = map;
671	else
672	mp->next = map;
673
674	return map;
675	}	541	}
676		542
677	/*	543	/*
678	* Allocates the arrays contained in a maptile.	544	* Allocates the arrays contained in a maptile.
679	* This basically allocates the dynamic array of spaces for the	545	* This basically allocates the dynamic array of spaces for the
680	* map.	546	* map.
681	*/	547	*/
682	void	548	void
683	maptile::allocate ()	549	maptile::alloc ()
684	{	550	{
685	in_memory = MAP_IN_MEMORY;
686
687	/* Log this condition and free the storage. We could I suppose
688	* realloc, but if the caller is presuming the data will be intact,
689	* that is their poor assumption.
690	*/
691	if (spaces)	551	if (spaces)
692	{
693	LOG (llevError, "allocate_map called with already allocated map (%s)\n", path);
694	free (spaces);
695	}
696
697	spaces = (MapSpace *)
698	calloc (1, width * height * sizeof (MapSpace));
699
700	if (!spaces)
701	fatal (OUT_OF_MEMORY);
702	}
703
704	/* Create and returns a map of the specific size. Used
705	* in random map code and the editor.
706	*/
707	maptile *
708	get_empty_map (int sizex, int sizey)
709	{
710	maptile *m = get_linked_map ();
711
712	m->width = sizex;
713	m->height = sizey;
714	m->in_memory = MAP_SWAPPED;
715	m->allocate ();
716
717	return m;	552	return;
		553
		554	spaces = salloc0<mapspace> (size ());
718	}	555	}
719		556
720	/* Takes a string from a map definition and outputs a pointer to the array of shopitems	557	/* Takes a string from a map definition and outputs a pointer to the array of shopitems
721	* corresponding to that string. Memory is allocated for this, it must be freed	558	* corresponding to that string. Memory is allocated for this, it must be freed
722	* at a later date.	559	* at a later date.
723	* Called by parse_map_headers below.	560	* Called by parse_map_headers below.
724	*/	561	*/
725
726	static shopitems *	562	static shopitems *
727	parse_shop_string (const char *input_string)	563	parse_shop_string (const char *input_string)
728	{	564	{
729	char *shop_string, *p, *q, *next_semicolon, *next_colon;	565	char *shop_string, *p, *q, *next_semicolon, *next_colon;
730	shopitems *items = NULL;	566	shopitems *items = NULL;
731	int i = 0, number_of_entries = 0;	567	int i = 0, number_of_entries = 0;
732	const typedata *current_type;	568	const typedata *current_type;
733		569
734	shop_string = strdup_local (input_string);	570	shop_string = strdup (input_string);
735	p = shop_string;	571	p = shop_string;
736	/* first we'll count the entries, we'll need that for allocating the array shortly */	572	/* first we'll count the entries, we'll need that for allocating the array shortly */
737	while (p)	573	while (p)
738	{	574	{
739	p = strchr (p, ';');	575	p = strchr (p, ';');
740	number_of_entries++;	576	number_of_entries++;
741	if (p)	577	if (p)
742	p++;	578	p++;
743	}	579	}
		580
744	p = shop_string;	581	p = shop_string;
745	strip_endline (p);	582	strip_endline (p);
746	items = new shopitems[number_of_entries + 1];	583	items = new shopitems[number_of_entries + 1];
747	for (i = 0; i < number_of_entries; i++)	584	for (i = 0; i < number_of_entries; i++)
748	{	585	{
749	if (!p)	586	if (!p)
750	{	587	{
751	LOG (llevError, "parse_shop_string: I seem to have run out of string, that shouldn't happen.\n");	588	LOG (llevError, "parse_shop_string: I seem to have run out of string, that shouldn't happen.\n");
752	break;	589	break;
753	}	590	}
		591
754	next_semicolon = strchr (p, ';');	592	next_semicolon = strchr (p, ';');
755	next_colon = strchr (p, ':');	593	next_colon = strchr (p, ':');
756	/* if there is a stregth specified, figure out what it is, we'll need it soon. */	594	/* if there is a stregth specified, figure out what it is, we'll need it soon. */
757	if (next_colon && (!next_semicolon || next_colon < next_semicolon))	595	if (next_colon && (!next_semicolon || next_colon < next_semicolon))
758	items[i].strength = atoi (strchr (p, ':') + 1);	596	items[i].strength = atoi (strchr (p, ':') + 1);
…		…
785	* the next entry while we're at it, better print a warning	623	* the next entry while we're at it, better print a warning
786	*/	624	*/
787	LOG (llevError, "invalid type %s defined in shopitems in string %s\n", p, input_string);	625	LOG (llevError, "invalid type %s defined in shopitems in string %s\n", p, input_string);
788	}	626	}
789	}	627	}
		628
790	items[i].index = number_of_entries;	629	items[i].index = number_of_entries;
791	if (next_semicolon)	630	if (next_semicolon)
792	p = ++next_semicolon;	631	p = ++next_semicolon;
793	else	632	else
794	p = NULL;	633	p = NULL;
795	}	634	}
		635
796	free (shop_string);	636	free (shop_string);
797	return items;	637	return items;
798	}	638	}
799		639
800	/* opposite of parse string, this puts the string that was originally fed in to	640	/* opposite of parse string, this puts the string that was originally fed in to
…		…
809	for (i = 0; i < m->shopitems[0].index; i++)	649	for (i = 0; i < m->shopitems[0].index; i++)
810	{	650	{
811	if (m->shopitems[i].typenum)	651	if (m->shopitems[i].typenum)
812	{	652	{
813	if (m->shopitems[i].strength)	653	if (m->shopitems[i].strength)
814	{
815	sprintf (tmp, "%s:%d;", m->shopitems[i].name, m->shopitems[i].strength);	654	sprintf (tmp, "%s:%d;", m->shopitems[i].name, m->shopitems[i].strength);
816	}
817	else	655	else
818	sprintf (tmp, "%s;", m->shopitems[i].name);	656	sprintf (tmp, "%s;", m->shopitems[i].name);
819	}	657	}
820	else	658	else
821	{	659	{
822	if (m->shopitems[i].strength)	660	if (m->shopitems[i].strength)
823	{
824	sprintf (tmp, "*:%d;", m->shopitems[i].strength);	661	sprintf (tmp, "*:%d;", m->shopitems[i].strength);
825	}
826	else	662	else
827	sprintf (tmp, "*");	663	sprintf (tmp, "*");
828	}	664	}
		665
829	strcat (output_string, tmp);	666	strcat (output_string, tmp);
830	}	667	}
831	}	668	}
832		669
833	/* This loads the header information of the map. The header	670	/* This loads the header information of the map. The header
…		…
838	* put all the stuff in the map object so that names actually make	675	* put all the stuff in the map object so that names actually make
839	* sense.	676	* sense.
840	* This could be done in lex (like the object loader), but I think	677	* This could be done in lex (like the object loader), but I think
841	* currently, there are few enough fields this is not a big deal.	678	* currently, there are few enough fields this is not a big deal.
842	* MSW 2001-07-01	679	* MSW 2001-07-01
843	* return 0 on success, 1 on failure.
844	*/	680	*/
845		681	bool
846	static int	682	maptile::_load_header (object_thawer &thawer)
847	load_map_header (object_thawer & fp, maptile *m)
848	{	683	{
849	char buf[HUGE_BUF], msgbuf[HUGE_BUF], maplorebuf[HUGE_BUF], *key = NULL, *value, *end;	684	for (;;)
850	int msgpos = 0;
851	int maplorepos = 0;
852
853	while (fgets (buf, HUGE_BUF, fp) != NULL)
854	{	685	{
855	buf[HUGE_BUF - 1] = 0;	686	thawer.next ();
856	key = buf;
857		687
858	while (isspace (*key))	688	switch (thawer.kw)
859	key++;
860
861	if (*key == 0)
862	continue; /* empty line */
863
864	value = strchr (key, ' ');
865
866	if (!value)
867	{	689	{
868	if ((end = strchr (key, '\n')))	690	case KW_msg:
869	*end = 0;	691	thawer.get_ml (KW_endmsg, msg);
		692	break;
		693
		694	case KW_lore: // CF+ extension
		695	thawer.get_ml (KW_endlore, maplore);
		696	break;
		697
		698	case KW_maplore:
		699	thawer.get_ml (KW_endmaplore, maplore);
		700	break;
		701
		702	case KW_arch:
		703	if (strcmp (thawer.get_str (), "map"))
		704	LOG (llevError, "%s: loading map and got a non 'arch map' line (arch %s), skipping.\n", &path, thawer.get_str ());
		705	break;
		706
		707	case KW_oid:
		708	thawer.get (this, thawer.get_sint32 ());
		709	break;
		710
		711	case KW_file_format_version: break; // nop
		712
		713	case KW_name: thawer.get (name); break;
		714	case KW_attach: thawer.get (attach); break;
		715	case KW_reset_time: thawer.get (reset_time); break;
		716	case KW_shopgreed: thawer.get (shopgreed); break;
		717	case KW_shopmin: thawer.get (shopmin); break;
		718	case KW_shopmax: thawer.get (shopmax); break;
		719	case KW_shoprace: thawer.get (shoprace); break;
		720	case KW_outdoor: thawer.get (outdoor); break;
		721	case KW_temp: thawer.get (temp); break;
		722	case KW_pressure: thawer.get (pressure); break;
		723	case KW_humid: thawer.get (humid); break;
		724	case KW_windspeed: thawer.get (windspeed); break;
		725	case KW_winddir: thawer.get (winddir); break;
		726	case KW_sky: thawer.get (sky); break;
		727
		728	case KW_per_player: thawer.get (per_player); break;
		729	case KW_per_party: thawer.get (per_party); break;
		730	case KW_no_reset: thawer.get (no_reset); break;
		731
		732	case KW_region: default_region = region::find (thawer.get_str ()); break;
		733	case KW_shopitems: shopitems = parse_shop_string (thawer.get_str ()); break;
		734
		735	// old names new names
		736	case KW_hp: case KW_enter_x: thawer.get (enter_x); break;
		737	case KW_sp: case KW_enter_y: thawer.get (enter_y); break;
		738	case KW_x: case KW_width: thawer.get (width); break;
		739	case KW_y: case KW_height: thawer.get (height); break;
		740	case KW_weight: case KW_reset_timeout: thawer.get (reset_timeout); break;
		741	case KW_value: case KW_swap_time: thawer.get (timeout); break;
		742	case KW_level: case KW_difficulty: thawer.get (difficulty); difficulty = clamp (difficulty, 1, settings.max_level); break;
		743	case KW_invisible: case KW_darkness: thawer.get (darkness); break;
		744	case KW_stand_still: case KW_fixed_resettime: thawer.get (fixed_resettime); break;
		745
		746	case KW_tile_path_1: thawer.get (tile_path [0]); break;
		747	case KW_tile_path_2: thawer.get (tile_path [1]); break;
		748	case KW_tile_path_3: thawer.get (tile_path [2]); break;
		749	case KW_tile_path_4: thawer.get (tile_path [3]); break;
		750
		751	case KW_end:
		752	return true;
		753
		754	default:
		755	if (!thawer.parse_error ("map", 0))
		756	return false;
		757	break;
870	}	758	}
871	else
872	{
873	*value = 0;
874	value++;
875	end = strchr (value, '\n');
876
877	while (isspace (*value))
878	{
879	value++;
880
881	if (*value == '\0' || value == end)
882	{
883	/* Nothing but spaces. */
884	value = NULL;
885	break;
886	}
887	}
888	}
889
890	if (!end)
891	{
892	LOG (llevError, "Error loading map header - did not find a newline - perhaps file is truncated? Buf=%s\n", buf);
893	return 1;
894	}
895
896	/* key is the field name, value is what it should be set
897	* to. We've already done the work to null terminate key,
898	* and strip off any leading spaces for both of these.
899	* We have not touched the newline at the end of the line -
900	* these are needed for some values. the end pointer
901	* points to the first of the newlines.
902	* value could be NULL! It would be easy enough to just point
903	* this to "" to prevent cores, but that would let more errors slide
904	* through.
905	*
906	* First check for entries that do not use the value parameter, then
907	* validate that value is given and check for the remaining entries
908	* that use the parameter.
909	*/
910
911	if (!strcmp (key, "msg"))
912	{
913	while (fgets (buf, HUGE_BUF, fp) != NULL)
914	{
915	if (!strcmp (buf, "endmsg\n"))
916	break;
917	else
918	{
919	/* slightly more efficient than strcat */
920	strcpy (msgbuf + msgpos, buf);
921	msgpos += strlen (buf);
922	}
923	}
924	/* There are lots of maps that have empty messages (eg, msg/endmsg
925	* with nothing between). There is no reason in those cases to
926	* keep the empty message. Also, msgbuf contains garbage data
927	* when msgpos is zero, so copying it results in crashes
928	*/
929	if (msgpos != 0)
930	m->msg = strdup_local (msgbuf);
931	}
932	else if (!strcmp (key, "maplore"))
933	{
934	while (fgets (buf, HUGE_BUF, fp) != NULL)
935	{
936	if (!strcmp (buf, "endmaplore\n"))
937	break;
938	else
939	{
940	/* slightly more efficient than strcat */
941	strcpy (maplorebuf + maplorepos, buf);
942	maplorepos += strlen (buf);
943	}
944	}
945	if (maplorepos != 0)
946	m->maplore = strdup_local (maplorebuf);
947	}
948	else if (!strcmp (key, "end"))
949	{
950	break;
951	}
952	else if (value == NULL)
953	{
954	LOG (llevError, "Got '%s' line without parameter in map header\n", key);
955	}
956	else if (!strcmp (key, "arch"))
957	{
958	/* This is an oddity, but not something we care about much. */
959	if (strcmp (value, "map\n"))
960	LOG (llevError, "loading map and got a non 'arch map' line(%s %s)?\n", key, value);
961	}
962	else if (!strcmp (key, "name"))
963	{
964	*end = 0;
965	m->name = strdup_local (value);
966	}
967	/* first strcmp value on these are old names supported
968	* for compatibility reasons. The new values (second) are
969	* what really should be used.
970	*/
971	else if (!strcmp (key, "oid"))
972	{
973	fp.get (m, atoi (value));
974	}
975	else if (!strcmp (key, "attach"))
976	{
977	m->attach = value;
978	}
979	else if (!strcmp (key, "hp") || !strcmp (key, "enter_x"))
980	{
981	m->enter_x = atoi (value);
982	}
983	else if (!strcmp (key, "sp") || !strcmp (key, "enter_y"))
984	{
985	m->enter_y = atoi (value);
986	}
987	else if (!strcmp (key, "x") || !strcmp (key, "width"))
988	{
989	m->width = atoi (value);
990	}
991	else if (!strcmp (key, "y") || !strcmp (key, "height"))
992	{
993	m->height = atoi (value);
994	}
995	else if (!strcmp (key, "weight") || !strcmp (key, "reset_timeout"))
996	{
997	m->reset_timeout = atoi (value);
998	}
999	else if (!strcmp (key, "value") || !strcmp (key, "swap_time"))
1000	{
1001	m->timeout = atoi (value);
1002	}
1003	else if (!strcmp (key, "level") || !strcmp (key, "difficulty"))
1004	{
1005	m->difficulty = atoi (value);
1006	}
1007	else if (!strcmp (key, "invisible") || !strcmp (key, "darkness"))
1008	{
1009	m->darkness = atoi (value);
1010	}
1011	else if (!strcmp (key, "stand_still") || !strcmp (key, "fixed_resettime"))
1012	{
1013	m->fixed_resettime = atoi (value);
1014	}
1015	else if (!strcmp (key, "unique"))
1016	{
1017	m->unique = atoi (value);
1018	}
1019	else if (!strcmp (key, "template"))
1020	{
1021	m->templatemap = atoi (value);
1022	}
1023	else if (!strcmp (key, "region"))
1024	{
1025	m->region = get_region_by_name (value);
1026	}
1027	else if (!strcmp (key, "shopitems"))
1028	{
1029	*end = 0;
1030	m->shopitems = parse_shop_string (value);
1031	}
1032	else if (!strcmp (key, "shopgreed"))
1033	{
1034	m->shopgreed = atof (value);
1035	}
1036	else if (!strcmp (key, "shopmin"))
1037	{
1038	m->shopmin = atol (value);
1039	}
1040	else if (!strcmp (key, "shopmax"))
1041	{
1042	m->shopmax = atol (value);
1043	}
1044	else if (!strcmp (key, "shoprace"))
1045	{
1046	*end = 0;
1047	m->shoprace = strdup_local (value);
1048	}
1049	else if (!strcmp (key, "outdoor"))
1050	{
1051	m->outdoor = atoi (value);
1052	}
1053	else if (!strcmp (key, "temp"))
1054	{
1055	m->temp = atoi (value);
1056	}
1057	else if (!strcmp (key, "pressure"))
1058	{
1059	m->pressure = atoi (value);
1060	}
1061	else if (!strcmp (key, "humid"))
1062	{
1063	m->humid = atoi (value);
1064	}
1065	else if (!strcmp (key, "windspeed"))
1066	{
1067	m->windspeed = atoi (value);
1068	}
1069	else if (!strcmp (key, "winddir"))
1070	{
1071	m->winddir = atoi (value);
1072	}
1073	else if (!strcmp (key, "sky"))
1074	{
1075	m->sky = atoi (value);
1076	}
1077	else if (!strcmp (key, "nosmooth"))
1078	{
1079	m->nosmooth = atoi (value);
1080	}
1081	else if (!strncmp (key, "tile_path_", 10))
1082	{
1083	int tile = atoi (key + 10);
1084
1085	if (tile < 1 || tile > 4)
1086	{
1087	LOG (llevError, "load_map_header: tile location %d out of bounds (%s)\n", tile, m->path);
1088	}
1089	else
1090	{
1091	char *path;
1092
1093	*end = 0;
1094
1095	if (m->tile_path[tile - 1])
1096	{
1097	LOG (llevError, "load_map_header: tile location %d duplicated (%s)\n", tile, m->path);
1098	free (m->tile_path[tile - 1]);
1099	m->tile_path[tile - 1] = NULL;
1100	}
1101
1102	if (check_path (value, 1) != -1)
1103	{
1104	/* The unadorned path works. */
1105	path = value;
1106	}
1107	else
1108	{
1109	/* Try again; it could be a relative exit. */
1110
1111	path = path_combine_and_normalize (m->path, value);
1112
1113	if (check_path (path, 1) == -1)
1114	{
1115	LOG (llevError, "get_map_header: Bad tile path %s %s\n", m->path, value);
1116	path = NULL;
1117	}
1118	}
1119
1120	if (editor)
1121	{
1122	/* Use the value as in the file. */
1123	m->tile_path[tile - 1] = strdup_local (value);
1124	}
1125	else if (path != NULL)
1126	{
1127	/* Use the normalized value. */
1128	m->tile_path[tile - 1] = strdup_local (path);
1129	}
1130	} /* end if tile direction (in)valid */
1131	}
1132	else
1133	{
1134	LOG (llevError, "Got unknown value in map header: %s %s\n", key, value);
1135	}
1136	}
1137	if (!key || strcmp (key, "end"))
1138	{	759	}
1139	LOG (llevError, "Got premature eof on map header!\n");
1140	return 1;
1141	}
1142	return 0;
1143	}
1144		760
1145	/*	761	abort ();
1146	* Opens the file "filename" and reads information about the map	762	}
1147	* from the given file, and stores it in a newly allocated
1148	* maptile. A pointer to this structure is returned, or NULL on failure.
1149	* flags correspond to those in map.h. Main ones used are
1150	* MAP_PLAYER_UNIQUE, in which case we don't do any name changes, and
1151	* MAP_BLOCK, in which case we block on this load. This happens in all
1152	* cases, no matter if this flag is set or not.
1153	* MAP_STYLE: style map - don't add active objects, don't add to server
1154	* managed map list.
1155	*/
1156		763
1157	maptile *	764	bool
1158	load_original_map (const char *filename, int flags)	765	maptile::_load_header (const char *path)
1159	{	766	{
1160	maptile *m;
1161	char pathname[MAX_BUF];
1162
1163	if (flags & MAP_PLAYER_UNIQUE)
1164	strcpy (pathname, filename);
1165	else if (flags & MAP_OVERLAY)
1166	strcpy (pathname, create_overlay_pathname (filename));
1167	else
1168	strcpy (pathname, create_pathname (filename));
1169
1170	LOG (llevDebug, "load_original_map(%x): %s (%s)\n", flags, filename, pathname);
1171
1172	object_thawer thawer (pathname);	767	object_thawer thawer (path);
1173		768
1174	if (!thawer)	769	if (!thawer)
1175	return 0;	770	return false;
1176		771
1177	m = get_linked_map ();	772	return _load_header (thawer);
1178
1179	strcpy (m->path, filename);
1180	if (load_map_header (thawer, m))
1181	{
1182	LOG (llevError, "Error loading map header for %s, flags=%d\n", filename, flags);
1183	delete_map (m);
1184	return NULL;
1185	}
1186
1187	m->allocate ();
1188
1189	m->in_memory = MAP_LOADING;
1190	load_objects (m, thawer, flags & (MAP_BLOCK | MAP_STYLE));
1191
1192	m->in_memory = MAP_IN_MEMORY;
1193	if (!MAP_DIFFICULTY (m))
1194	MAP_DIFFICULTY (m) = calculate_difficulty (m);
1195	set_map_reset_time (m);
1196	m->instantiate ();
1197	return (m);
1198	}
1199
1200	/*
1201	* Loads a map, which has been loaded earlier, from file.
1202	* Return the map object we load into (this can change from the passed
1203	* option if we can't find the original map)
1204	*/
1205
1206	static maptile *
1207	load_temporary_map (maptile *m)
1208	{
1209	char buf[MAX_BUF];
1210
1211	if (!m->tmpname)
1212	{
1213	LOG (llevError, "No temporary filename for map %s\n", m->path);
1214	strcpy (buf, m->path);
1215	delete_map (m);
1216	m = load_original_map (buf, 0);
1217	if (m == NULL)
1218	return NULL;
1219	fix_auto_apply (m); /* Chests which open as default */
1220	return m;
1221	}
1222
1223	object_thawer thawer (m->tmpname);
1224
1225	if (!thawer)
1226	{
1227	strcpy (buf, m->path);
1228	delete_map (m);
1229	m = load_original_map (buf, 0);
1230	if (!m)
1231	return NULL;
1232	fix_auto_apply (m); /* Chests which open as default */
1233	return m;
1234	}
1235
1236	if (load_map_header (thawer, m))
1237	{
1238	LOG (llevError, "Error loading map header for %s (%s)\n", m->path, m->tmpname);
1239	delete_map (m);
1240	m = load_original_map (m->path, 0);
1241	return NULL;
1242	}
1243
1244	m->allocate ();
1245
1246	m->in_memory = MAP_LOADING;
1247	load_objects (m, thawer, 0);
1248
1249	m->in_memory = MAP_IN_MEMORY;
1250	INVOKE_MAP (SWAPIN, m);
1251	return m;
1252	}
1253
1254	/*
1255	* Loads a map, which has been loaded earlier, from file.
1256	* Return the map object we load into (this can change from the passed
1257	* option if we can't find the original map)
1258	*/
1259
1260	maptile *
1261	load_overlay_map (const char *filename, maptile *m)
1262	{
1263	char pathname[MAX_BUF];
1264
1265	strcpy (pathname, create_overlay_pathname (filename));
1266
1267	object_thawer thawer (pathname);
1268
1269	if (!thawer)
1270	return m;
1271
1272	if (load_map_header (thawer, m))
1273	{
1274	LOG (llevError, "Error loading map header for overlay %s (%s)\n", m->path, pathname);
1275	delete_map (m);
1276	m = load_original_map (m->path, 0);
1277	return NULL;
1278	}
1279	/*m->allocate ();*/
1280
1281	m->in_memory = MAP_LOADING;
1282	load_objects (m, thawer, MAP_OVERLAY);
1283
1284	m->in_memory = MAP_IN_MEMORY;
1285	return m;
1286	}	773	}
1287		774
1288	/******************************************************************************	775	/******************************************************************************
1289	* This is the start of unique map handling code	776	* This is the start of unique map handling code
1290	*****************************************************************************/	777	*****************************************************************************/
1291		778
1292	/* This goes through map 'm' and removed any unique items on the map. */	779	/* This goes through the maptile and removed any unique items on the map. */
1293	static void	780	void
1294	delete_unique_items (maptile *m)	781	maptile::clear_unique_items ()
1295	{	782	{
1296	int i, j, unique;	783	for (int i = 0; i < size (); ++i)
1297	object *op, *next;	784	{
		785	int unique = 0;
		786	for (object *op = spaces [i].bot; op; )
		787	{
		788	object *above = op->above;
1298		789
1299	for (i = 0; i < MAP_WIDTH (m); i++)	790	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))
1300	for (j = 0; j < MAP_HEIGHT (m); j++)	791	unique = 1;
		792
		793	if (op->head_ () == op && (QUERY_FLAG (op, FLAG_UNIQUE) || unique))
		794	{
		795	op->destroy_inv (false);
		796	op->destroy ();
		797	}
		798
		799	op = above;
		800	}
		801	}
		802	}
		803
		804	bool
		805	maptile::_save_header (object_freezer &freezer)
		806	{
		807	#define MAP_OUT(k) freezer.put (KW_ ## k, k)
		808	#define MAP_OUT2(k,v) freezer.put (KW_ ## k, v)
		809
		810	MAP_OUT2 (arch, "map");
		811
		812	if (name) MAP_OUT (name);
		813	MAP_OUT (swap_time);
		814	MAP_OUT (reset_time);
		815	MAP_OUT (reset_timeout);
		816	MAP_OUT (fixed_resettime);
		817	MAP_OUT (no_reset);
		818	MAP_OUT (difficulty);
		819
		820	if (default_region) MAP_OUT2 (region, default_region->name);
		821
		822	if (shopitems)
		823	{
		824	char shop[MAX_BUF];
		825	print_shop_string (this, shop);
		826	MAP_OUT2 (shopitems, shop);
		827	}
		828
		829	MAP_OUT (shopgreed);
		830	MAP_OUT (shopmin);
		831	MAP_OUT (shopmax);
		832	if (shoprace) MAP_OUT (shoprace);
		833	MAP_OUT (darkness);
		834	MAP_OUT (width);
		835	MAP_OUT (height);
		836	MAP_OUT (enter_x);
		837	MAP_OUT (enter_y);
		838
		839	if (msg) freezer.put (KW_msg , KW_endmsg , msg);
		840	if (maplore) freezer.put (KW_maplore, KW_endmaplore, maplore);
		841
		842	MAP_OUT (outdoor);
		843	MAP_OUT (temp);
		844	MAP_OUT (pressure);
		845	MAP_OUT (humid);
		846	MAP_OUT (windspeed);
		847	MAP_OUT (winddir);
		848	MAP_OUT (sky);
		849
		850	MAP_OUT (per_player);
		851	MAP_OUT (per_party);
		852
		853	if (tile_path [0]) MAP_OUT2 (tile_path_1, tile_path [0]);
		854	if (tile_path [1]) MAP_OUT2 (tile_path_2, tile_path [1]);
		855	if (tile_path [2]) MAP_OUT2 (tile_path_3, tile_path [2]);
		856	if (tile_path [3]) MAP_OUT2 (tile_path_4, tile_path [3]);
		857
		858	freezer.put (this);
		859	freezer.put (KW_end);
		860
		861	return true;
		862	}
		863
		864	bool
		865	maptile::_save_header (const char *path)
		866	{
		867	object_freezer freezer;
		868
		869	if (!_save_header (freezer))
		870	return false;
		871
		872	return freezer.save (path);
		873	}
		874
		875	/*
		876	* Remove and free all objects in the given map.
		877	*/
		878	void
		879	maptile::clear ()
		880	{
		881	sfree (regions, size ()), regions = 0;
		882	free (regionmap), regionmap = 0;
		883
		884	if (spaces)
		885	{
		886	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		887	while (object *op = ms->bot)
		888	{
		889	op = op->head_ ();
		890	op->destroy_inv (false);
		891	op->destroy ();
		892	}
		893
		894	sfree (spaces, size ()), spaces = 0;
		895	}
		896
		897	if (buttons)
		898	free_objectlinkpt (buttons), buttons = 0;
		899	}
		900
		901	void
		902	maptile::clear_header ()
		903	{
		904	name = 0;
		905	msg = 0;
		906	maplore = 0;
		907	shoprace = 0;
		908	delete [] shopitems, shopitems = 0;
		909
		910	for (int i = 0; i < 4; i++)
		911	tile_path [i] = 0;
		912	}
		913
		914	maptile::~maptile ()
		915	{
		916	assert (destroyed ());
		917	}
		918
		919	void
		920	maptile::clear_links_to (maptile *m)
		921	{
		922	/* We need to look through all the maps and see if any maps
		923	* are pointing at this one for tiling information. Since
		924	* tiling can be asymetric, we just can not look to see which
		925	* maps this map tiles with and clears those.
		926	*/
		927	for (int i = 0; i < 4; i++)
		928	if (tile_map[i] == m)
		929	tile_map[i] = 0;
		930	}
		931
		932	void
		933	maptile::do_destroy ()
		934	{
		935	attachable::do_destroy ();
		936
		937	clear ();
		938	}
		939
		940	/* decay and destroy perishable items in a map */
		941	void
		942	maptile::do_decay_objects ()
		943	{
		944	if (!spaces)
		945	return;
		946
		947	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		948	for (object *above, *op = ms->bot; op; op = above)
1301	{	949	{
1302	unique = 0;	950	above = op->above;
1303		951
1304	for (op = get_map_ob (m, i, j); op; op = next)	952	bool destroy = 0;
		953
		954	// do not decay anything above unique floor tiles (yet :)
		955	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))
		956	break;
		957
		958	if (QUERY_FLAG (op, FLAG_IS_FLOOR)
		959	|| QUERY_FLAG (op, FLAG_OBJ_ORIGINAL)
		960	|| QUERY_FLAG (op, FLAG_OBJ_SAVE_ON_OVL)
		961	|| QUERY_FLAG (op, FLAG_UNIQUE)
		962	|| QUERY_FLAG (op, FLAG_OVERLAY_FLOOR)
		963	|| QUERY_FLAG (op, FLAG_UNPAID)
		964	|| op->is_alive ())
		965	; // do not decay
		966	else if (op->is_weapon ())
1305	{	967	{
1306	next = op->above;	968	op->stats.dam--;
1307		969	if (op->stats.dam < 0)
1308	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))
1309	unique = 1;	970	destroy = 1;
1310		971	}
1311	if (op->head == NULL && (QUERY_FLAG (op, FLAG_UNIQUE) || unique))	972	else if (op->is_armor ())
1312	{	973	{
1313	clean_object (op);	974	op->stats.ac--;
		975	if (op->stats.ac < 0)
		976	destroy = 1;
		977	}
		978	else if (op->type == FOOD)
		979	{
		980	op->stats.food -= rndm (5, 20);
		981	if (op->stats.food < 0)
		982	destroy = 1;
		983	}
		984	else
		985	{
		986	int mat = op->materials;
1314		987
1315	if (QUERY_FLAG (op, FLAG_IS_LINKED))	988	if (mat & M_PAPER
1316	remove_button_link (op);	989	|| mat & M_LEATHER
		990	|| mat & M_WOOD
		991	|| mat & M_ORGANIC
		992	|| mat & M_CLOTH
		993	|| mat & M_LIQUID
		994	|| (mat & M_IRON && rndm (1, 5) == 1)
		995	|| (mat & M_GLASS && rndm (1, 2) == 1)
		996	|| ((mat & M_STONE || mat & M_ADAMANT) && rndm (1, 10) == 1)
		997	|| ((mat & M_SOFT_METAL || mat & M_BONE) && rndm (1, 3) == 1)
		998	|| (mat & M_ICE && temp > 32))
		999	destroy = 1;
		1000	}
1317		1001
		1002	/* adjust overall chance below */
		1003	if (destroy && rndm (0, 1))
1318	op->destroy ();	1004	op->destroy ();
		1005	}
		1006	}
		1007
		1008	/*
		1009	* Updates every button on the map (by calling update_button() for them).
		1010	*/
		1011	void
		1012	maptile::update_buttons ()
		1013	{
		1014	for (oblinkpt *obp = buttons; obp; obp = obp->next)
		1015	for (objectlink *ol = obp->link; ol; ol = ol->next)
		1016	{
		1017	if (!ol->ob)
		1018	{
		1019	LOG (llevError, "Internal error in update_button (%s (%dx%d), connected %ld).\n",
		1020	ol->ob ? (const char *) ol->ob->name : "null", ol->ob ? ol->ob->x : -1, ol->ob ? ol->ob->y : -1, obp->value);
		1021	continue;
1319	}	1022	}
		1023
		1024	if (ol->ob->type == BUTTON || ol->ob->type == PEDESTAL)
		1025	{
		1026	update_button (ol->ob);
		1027	break;
1320	}	1028	}
1321	}	1029	}
1322	}	1030	}
1323
1324
1325	/*
1326	* Loads unique objects from file(s) into the map which is in memory
1327	* m is the map to load unique items into.
1328	*/
1329	static void
1330	load_unique_objects (maptile *m)
1331	{
1332	int count;
1333	char firstname[MAX_BUF];
1334
1335	for (count = 0; count < 10; count++)
1336	{
1337	sprintf (firstname, "%s.v%02d", create_items_path (m->path), count);
1338	if (!access (firstname, R_OK))
1339	break;
1340	}
1341	/* If we get here, we did not find any map */
1342	if (count == 10)
1343	return;
1344
1345	object_thawer thawer (firstname);
1346
1347	if (!thawer)
1348	return;
1349
1350	m->in_memory = MAP_LOADING;
1351	if (m->tmpname == NULL) /* if we have loaded unique items from */
1352	delete_unique_items (m); /* original map before, don't duplicate them */
1353	load_objects (m, thawer, 0);
1354
1355	m->in_memory = MAP_IN_MEMORY;
1356	}
1357
1358
1359	/*
1360	* Saves a map to file. If flag is set, it is saved into the same
1361	* file it was (originally) loaded from. Otherwise a temporary
1362	* filename will be genarated, and the file will be stored there.
1363	* The temporary filename will be stored in the maptileure.
1364	* If the map is unique, we also save to the filename in the map
1365	* (this should have been updated when first loaded)
1366	*/
1367
1368	int
1369	new_save_map (maptile *m, int flag)
1370	{
1371	char filename[MAX_BUF], buf[MAX_BUF], shop[MAX_BUF];
1372	int i;
1373
1374	if (flag && !*m->path)
1375	{
1376	LOG (llevError, "Tried to save map without path.\n");
1377	return -1;
1378	}
1379
1380	if (flag || (m->unique) || (m->templatemap))
1381	{
1382	if (!m->unique && !m->templatemap)
1383	{ /* flag is set */
1384	if (flag == 2)
1385	strcpy (filename, create_overlay_pathname (m->path));
1386	else
1387	strcpy (filename, create_pathname (m->path));
1388	}
1389	else
1390	strcpy (filename, m->path);
1391
1392	make_path_to_file (filename);
1393	}
1394	else
1395	{
1396	if (!m->tmpname)
1397	m->tmpname = tempnam_local (settings.tmpdir, NULL);
1398
1399	strcpy (filename, m->tmpname);
1400	}
1401
1402	LOG (llevDebug, "Saving map %s to %s\n", m->path, filename);
1403	m->in_memory = MAP_SAVING;
1404
1405	object_freezer freezer;
1406
1407	/* legacy */
1408	fprintf (freezer, "arch map\n");
1409	if (m->name)
1410	fprintf (freezer, "name %s\n", m->name);
1411	if (!flag)
1412	fprintf (freezer, "swap_time %d\n", m->swap_time);
1413	if (m->reset_timeout)
1414	fprintf (freezer, "reset_timeout %d\n", m->reset_timeout);
1415	if (m->fixed_resettime)
1416	fprintf (freezer, "fixed_resettime %d\n", m->fixed_resettime);
1417	/* we unfortunately have no idea if this is a value the creator set
1418	* or a difficulty value we generated when the map was first loaded
1419	*/
1420	if (m->difficulty)
1421	fprintf (freezer, "difficulty %d\n", m->difficulty);
1422	if (m->region)
1423	fprintf (freezer, "region %s\n", m->region->name);
1424	if (m->shopitems)
1425	{
1426	print_shop_string (m, shop);
1427	fprintf (freezer, "shopitems %s\n", shop);
1428	}
1429	if (m->shopgreed)
1430	fprintf (freezer, "shopgreed %f\n", m->shopgreed);
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	if (m->shoprace)
1436	fprintf (freezer, "shoprace %s\n", m->shoprace);
1437	if (m->darkness)
1438	fprintf (freezer, "darkness %d\n", m->darkness);
1439	if (m->width)
1440	fprintf (freezer, "width %d\n", m->width);
1441	if (m->height)
1442	fprintf (freezer, "height %d\n", m->height);
1443	if (m->enter_x)
1444	fprintf (freezer, "enter_x %d\n", m->enter_x);
1445	if (m->enter_y)
1446	fprintf (freezer, "enter_y %d\n", m->enter_y);
1447	if (m->msg)
1448	fprintf (freezer, "msg\n%sendmsg\n", m->msg);
1449	if (m->maplore)
1450	fprintf (freezer, "maplore\n%sendmaplore\n", m->maplore);
1451	if (m->unique)
1452	fprintf (freezer, "unique %d\n", m->unique);
1453	if (m->templatemap)
1454	fprintf (freezer, "template %d\n", m->templatemap);
1455	if (m->outdoor)
1456	fprintf (freezer, "outdoor %d\n", m->outdoor);
1457	if (m->temp)
1458	fprintf (freezer, "temp %d\n", m->temp);
1459	if (m->pressure)
1460	fprintf (freezer, "pressure %d\n", m->pressure);
1461	if (m->humid)
1462	fprintf (freezer, "humid %d\n", m->humid);
1463	if (m->windspeed)
1464	fprintf (freezer, "windspeed %d\n", m->windspeed);
1465	if (m->winddir)
1466	fprintf (freezer, "winddir %d\n", m->winddir);
1467	if (m->sky)
1468	fprintf (freezer, "sky %d\n", m->sky);
1469	if (m->nosmooth)
1470	fprintf (freezer, "nosmooth %d\n", m->nosmooth);
1471
1472	/* Save any tiling information, except on overlays */
1473	if (flag != 2)
1474	for (i = 0; i < 4; i++)
1475	if (m->tile_path[i])
1476	fprintf (freezer, "tile_path_%d %s\n", i + 1, m->tile_path[i]);
1477
1478	freezer.put (m);
1479	fprintf (freezer, "end\n");
1480
1481	/* In the game save unique items in the different file, but
1482	* in the editor save them to the normal map file.
1483	* If unique map, save files in the proper destination (set by
1484	* player)
1485	*/
1486	if ((flag == 0 || flag == 2) && !m->unique && !m->templatemap)
1487	{
1488	object_freezer unique;
1489
1490	if (flag == 2)
1491	save_objects (m, freezer, unique, 2);
1492	else
1493	save_objects (m, freezer, unique, 0);
1494
1495	sprintf (buf, "%s.v00", create_items_path (m->path));
1496
1497	unique.save (buf);
1498	}
1499	else
1500	{ /* save same file when not playing, like in editor */
1501	save_objects (m, freezer, freezer, 0);
1502	}
1503
1504	freezer.save (filename);
1505
1506	return 0;
1507	}
1508
1509
1510	/*
1511	* Remove and free all objects in the inventory of the given object.
1512	* object.c ?
1513	*/
1514
1515	void
1516	clean_object (object *op)
1517	{
1518	object *tmp, *next;
1519
1520	for (tmp = op->inv; tmp; tmp = next)
1521	{
1522	next = tmp->below;
1523
1524	clean_object (tmp);
1525	if (QUERY_FLAG (tmp, FLAG_IS_LINKED))
1526	remove_button_link (tmp);
1527
1528	tmp->destroy ();
1529	}
1530	}
1531
1532	/*
1533	* Remove and free all objects in the given map.
1534	*/
1535
1536	void
1537	free_all_objects (maptile *m)
1538	{
1539	int i, j;
1540	object *op;
1541
1542	for (i = 0; i < MAP_WIDTH (m); i++)
1543	for (j = 0; j < MAP_HEIGHT (m); j++)
1544	{
1545	object *previous_obj = NULL;
1546
1547	while ((op = GET_MAP_OB (m, i, j)) != NULL)
1548	{
1549	if (op == previous_obj)
1550	{
1551	LOG (llevDebug, "free_all_objects: Link error, bailing out.\n");
1552	break;
1553	}
1554
1555	previous_obj = op;
1556
1557	if (op->head != NULL)
1558	op = op->head;
1559
1560	/* If the map isn't in memory, free_object will remove and
1561	* free objects in op's inventory. So let it do the job.
1562	*/
1563	if (m->in_memory == MAP_IN_MEMORY)
1564	clean_object (op);
1565
1566	op->destroy ();
1567	}
1568	}
1569	}
1570
1571	/*
1572	* Frees everything allocated by the given maptileure.
1573	* don't free tmpname - our caller is left to do that
1574	*/
1575
1576	void
1577	free_map (maptile *m, int flag)
1578	{
1579	int i;
1580
1581	if (!m->in_memory)
1582	{
1583	LOG (llevError, "Trying to free freed map.\n");
1584	return;
1585	}
1586	if (flag && m->spaces)
1587	free_all_objects (m);
1588	if (m->name)
1589	FREE_AND_CLEAR (m->name);
1590	if (m->spaces)
1591	FREE_AND_CLEAR (m->spaces);
1592	if (m->msg)
1593	FREE_AND_CLEAR (m->msg);
1594	if (m->maplore)
1595	FREE_AND_CLEAR (m->maplore);
1596	if (m->shopitems)
1597	delete[]m->shopitems;
1598	m->shopitems = 0;
1599	if (m->shoprace)
1600	FREE_AND_CLEAR (m->shoprace);
1601	if (m->buttons)
1602	free_objectlinkpt (m->buttons);
1603	m->buttons = NULL;
1604	for (i = 0; i < 4; i++)
1605	{
1606	if (m->tile_path[i])
1607	FREE_AND_CLEAR (m->tile_path[i]);
1608	m->tile_map[i] = NULL;
1609	}
1610	m->in_memory = MAP_SWAPPED;
1611	}
1612
1613	/*
1614	* function: vanish maptile
1615	* m : pointer to maptile, if NULL no action
1616	* this deletes all the data on the map (freeing pointers)
1617	* and then removes this map from the global linked list of maps.
1618	*/
1619
1620	void
1621	delete_map (maptile *m)
1622	{
1623	maptile *tmp, *last;
1624	int i;
1625
1626	if (!m)
1627	return;
1628
1629	m->clear ();
1630
1631	if (m->in_memory == MAP_IN_MEMORY)
1632	{
1633	/* change to MAP_SAVING, even though we are not,
1634	* so that remove_ob doesn't do as much work.
1635	*/
1636	m->in_memory = MAP_SAVING;
1637	free_map (m, 1);
1638	}
1639	/* move this out of free_map, since tmpname can still be needed if
1640	* the map is swapped out.
1641	*/
1642	if (m->tmpname)
1643	{
1644	free (m->tmpname);
1645	m->tmpname = NULL;
1646	}
1647	last = NULL;
1648	/* We need to look through all the maps and see if any maps
1649	* are pointing at this one for tiling information. Since
1650	* tiling can be assymetric, we just can not look to see which
1651	* maps this map tiles with and clears those.
1652	*/
1653	for (tmp = first_map; tmp != NULL; tmp = tmp->next)
1654	{
1655	if (tmp->next == m)
1656	last = tmp;
1657
1658	/* This should hopefully get unrolled on a decent compiler */
1659	for (i = 0; i < 4; i++)
1660	if (tmp->tile_map[i] == m)
1661	tmp->tile_map[i] = NULL;
1662	}
1663
1664	/* If last is null, then this should be the first map in the list */
1665	if (!last)
1666	{
1667	if (m == first_map)
1668	first_map = m->next;
1669	else
1670	/* m->path is a static char, so should hopefully still have
1671	* some useful data in it.
1672	*/
1673	LOG (llevError, "delete_map: Unable to find map %s in list\n", m->path);
1674	}
1675	else
1676	last->next = m->next;
1677
1678	delete m;
1679	}
1680
1681
1682
1683	/*
1684	* Makes sure the given map is loaded and swapped in.
1685	* name is path name of the map.
1686	* flags meaning:
1687	* 0x1 (MAP_FLUSH): flush the map - always load from the map directory,
1688	* and don't do unique items or the like.
1689	* 0x2 (MAP_PLAYER_UNIQUE) - this is a unique map for each player.
1690	* dont do any more name translation on it.
1691	*
1692	* Returns a pointer to the given map.
1693	*/
1694
1695	maptile *
1696	ready_map_name (const char *name, int flags)
1697	{
1698	maptile *m;
1699
1700	if (!name)
1701	return (NULL);
1702
1703	/* Have we been at this level before? */
1704	m = has_been_loaded (name);
1705
1706	/* Map is good to go, so just return it */
1707	if (m && (m->in_memory == MAP_LOADING || m->in_memory == MAP_IN_MEMORY))
1708	{
1709	return m;
1710	}
1711
1712	/* unique maps always get loaded from their original location, and never
1713	* a temp location. Likewise, if map_flush is set, or we have never loaded
1714	* this map, load it now. I removed the reset checking from here -
1715	* it seems the probability of a player trying to enter a map that should
1716	* reset but hasn't yet is quite low, and removing that makes this function
1717	* a bit cleaner (and players probably shouldn't rely on exact timing for
1718	* resets in any case - if they really care, they should use the 'maps command.
1719	*/
1720	if ((flags & (MAP_FLUSH | MAP_PLAYER_UNIQUE)) || !m)
1721	{
1722
1723	/* first visit or time to reset */
1724	if (m)
1725	{
1726	clean_tmp_map (m); /* Doesn't make much difference */
1727	delete_map (m);
1728	}
1729
1730	/* create and load a map */
1731	if (flags & MAP_PLAYER_UNIQUE)
1732	LOG (llevDebug, "Trying to load map %s.\n", name);
1733	else
1734	LOG (llevDebug, "Trying to load map %s.\n", create_pathname (name));
1735
1736	//eval_pv ("$x = Event::time", 1);//D
1737	if (!(m = load_original_map (name, (flags & MAP_PLAYER_UNIQUE))))
1738	return (NULL);
1739	//eval_pv ("warn \"LOAD \", Event::time - $x", 1);//D
1740
1741	fix_auto_apply (m); /* Chests which open as default */
1742
1743	/* If a player unique map, no extra unique object file to load.
1744	* if from the editor, likewise.
1745	*/
1746	if (!(flags & (MAP_FLUSH | MAP_PLAYER_UNIQUE)))
1747	load_unique_objects (m);
1748
1749	if (!(flags & (MAP_FLUSH | MAP_PLAYER_UNIQUE | MAP_OVERLAY)))
1750	{
1751	m = load_overlay_map (name, m);
1752	if (m == NULL)
1753	return NULL;
1754	}
1755
1756	if (flags & MAP_PLAYER_UNIQUE)
1757	INVOKE_MAP (SWAPIN, m);
1758
1759	}
1760	else
1761	{
1762	/* If in this loop, we found a temporary map, so load it up. */
1763
1764	m = load_temporary_map (m);
1765	if (m == NULL)
1766	return NULL;
1767	load_unique_objects (m);
1768
1769	clean_tmp_map (m);
1770	m->in_memory = MAP_IN_MEMORY;
1771	/* tempnam() on sun systems (probably others) uses malloc
1772	* to allocated space for the string. Free it here.
1773	* In some cases, load_temporary_map above won't find the
1774	* temporary map, and so has reloaded a new map. If that
1775	* is the case, tmpname is now null
1776	*/
1777	if (m->tmpname)
1778	free (m->tmpname);
1779	m->tmpname = NULL;
1780	/* It's going to be saved anew anyway */
1781	}
1782
1783	/* Below here is stuff common to both first time loaded maps and
1784	* temp maps.
1785	*/
1786
1787	decay_objects (m); /* start the decay */
1788	/* In case other objects press some buttons down */
1789	update_buttons (m);
1790	if (m->outdoor)
1791	set_darkness_map (m);
1792	/* run the weather over this map */
1793	weather_effect (name);
1794	return m;
1795	}
1796
1797		1031
1798	/*	1032	/*
1799	* This routine is supposed to find out the difficulty of the map.	1033	* This routine is supposed to find out the difficulty of the map.
1800	* difficulty does not have a lot to do with character level,	1034	* difficulty does not have a lot to do with character level,
1801	* but does have a lot to do with treasure on the map.	1035	* but does have a lot to do with treasure on the map.
…		…
1803	* Difficulty can now be set by the map creature. If the value stored	1037	* Difficulty can now be set by the map creature. If the value stored
1804	* in the map is zero, then use this routine. Maps should really	1038	* in the map is zero, then use this routine. Maps should really
1805	* have a difficulty set than using this function - human calculation	1039	* have a difficulty set than using this function - human calculation
1806	* is much better than this functions guesswork.	1040	* is much better than this functions guesswork.
1807	*/	1041	*/
1808
1809	int	1042	int
1810	calculate_difficulty (maptile *m)	1043	maptile::estimate_difficulty () const
1811	{	1044	{
1812	object *op;
1813	archetype *at;
1814	int x, y, i;
1815	long monster_cnt = 0;	1045	long monster_cnt = 0;
1816	double avgexp = 0;	1046	double avgexp = 0;
1817	sint64 total_exp = 0;	1047	sint64 total_exp = 0;
1818		1048
1819	if (MAP_DIFFICULTY (m))	1049	for (mapspace *ms = spaces + size (); ms-- > spaces; )
1820	{	1050	for (object *op = ms->bot; op; op = op->above)
1821	LOG (llevDebug, "Using stored map difficulty: %d\n", MAP_DIFFICULTY (m));
1822	return MAP_DIFFICULTY (m);
1823	}
1824
1825	for (x = 0; x < MAP_WIDTH (m); x++)
1826	for (y = 0; y < MAP_HEIGHT (m); y++)
1827	for (op = get_map_ob (m, x, y); op != NULL; op = op->above)
1828	{	1051	{
1829	if (QUERY_FLAG (op, FLAG_MONSTER))	1052	if (QUERY_FLAG (op, FLAG_MONSTER))
1830	{	1053	{
1831	total_exp += op->stats.exp;	1054	total_exp += op->stats.exp;
1832	monster_cnt++;	1055	monster_cnt++;
1833	}	1056	}
1834		1057
1835	if (QUERY_FLAG (op, FLAG_GENERATOR))	1058	if (QUERY_FLAG (op, FLAG_GENERATOR))
1836	{	1059	{
1837	total_exp += op->stats.exp;	1060	total_exp += op->stats.exp;
		1061
1838	at = type_to_archetype (GENERATE_TYPE (op));	1062	if (archetype *at = type_to_archetype (GENERATE_TYPE (op)))
1839
1840	if (at != NULL)
1841	total_exp += at->clone.stats.exp * 8;	1063	total_exp += at->stats.exp * 8;
1842		1064
1843	monster_cnt++;	1065	monster_cnt++;
1844	}	1066	}
1845	}	1067	}
1846		1068
1847	avgexp = (double) total_exp / monster_cnt;	1069	avgexp = (double) total_exp / monster_cnt;
1848		1070
1849	for (i = 1; i <= settings.max_level; i++)	1071	for (int i = 1; i <= settings.max_level; i++)
1850	{
1851	if ((level_exp (i, 1) - level_exp (i - 1, 1)) > (100 * avgexp))	1072	if ((level_exp (i, 1) - level_exp (i - 1, 1)) > (100 * avgexp))
1852	{
1853	/* LOG(llevDebug, "Calculated difficulty for map: %s: %d\n", m->name, i); */
1854	return i;	1073	return i;
1855	}
1856	}
1857		1074
1858	return 1;	1075	return 1;
1859	}
1860
1861	void
1862	clean_tmp_map (maptile *m)
1863	{
1864	if (m->tmpname == NULL)
1865	return;
1866	INVOKE_MAP (CLEAN, m);
1867	(void) unlink (m->tmpname);
1868	}
1869
1870	void
1871	free_all_maps (void)
1872	{
1873	int real_maps = 0;
1874
1875	while (first_map)
1876	{
1877	/* I think some of the callers above before it gets here set this to be
1878	* saving, but we still want to free this data
1879	*/
1880	if (first_map->in_memory == MAP_SAVING)
1881	first_map->in_memory = MAP_IN_MEMORY;
1882	delete_map (first_map);
1883	real_maps++;
1884	}
1885	LOG (llevDebug, "free_all_maps: Freed %d maps\n", real_maps);
1886	}	1076	}
1887		1077
1888	/* change_map_light() - used to change map light level (darkness)	1078	/* change_map_light() - used to change map light level (darkness)
1889	* up or down. Returns true if successful. It should now be	1079	* up or down. Returns true if successful. It should now be
1890	* possible to change a value by more than 1.	1080	* possible to change a value by more than 1.
1891	* Move this from los.c to map.c since this is more related	1081	* Move this from los.c to map.c since this is more related
1892	* to maps than los.	1082	* to maps than los.
1893	* postive values make it darker, negative make it brighter	1083	* postive values make it darker, negative make it brighter
1894	*/	1084	*/
1895
1896	int	1085	int
1897	change_map_light (maptile *m, int change)	1086	maptile::change_map_light (int change)
1898	{	1087	{
1899	int new_level = m->darkness + change;	1088	int new_level = darkness + change;
1900		1089
1901	/* Nothing to do */	1090	/* Nothing to do */
1902	if (!change || (new_level <= 0 && m->darkness == 0) || (new_level >= MAX_DARKNESS && m->darkness >= MAX_DARKNESS))	1091	if (!change || (new_level <= 0 && darkness == 0) || (new_level >= MAX_DARKNESS && darkness >= MAX_DARKNESS))
1903	{
1904	return 0;	1092	return 0;
1905	}
1906		1093
1907	/* inform all players on the map */	1094	/* inform all players on the map */
1908	if (change > 0)	1095	if (change > 0)
1909	new_info_map (NDI_BLACK | NDI_UNIQUE, m, "It becomes darker.");	1096	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes darker.");
1910	else	1097	else
1911	new_info_map (NDI_BLACK | NDI_UNIQUE, m, "It becomes brighter.");	1098	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes brighter.");
1912		1099
1913	/* Do extra checking. since m->darkness is a unsigned value,	1100	/* Do extra checking. since darkness is a unsigned value,
1914	* we need to be extra careful about negative values.	1101	* we need to be extra careful about negative values.
1915	* In general, the checks below are only needed if change	1102	* In general, the checks below are only needed if change
1916	* is not +/-1	1103	* is not +/-1
1917	*/	1104	*/
1918	if (new_level < 0)	1105	if (new_level < 0)
1919	m->darkness = 0;	1106	darkness = 0;
1920	else if (new_level >= MAX_DARKNESS)	1107	else if (new_level >= MAX_DARKNESS)
1921	m->darkness = MAX_DARKNESS;	1108	darkness = MAX_DARKNESS;
1922	else	1109	else
1923	m->darkness = new_level;	1110	darkness = new_level;
1924		1111
1925	/* All clients need to get re-updated for the change */	1112	/* All clients need to get re-updated for the change */
1926	update_all_map_los (m);	1113	update_all_map_los (this);
1927	return 1;	1114	return 1;
1928	}	1115	}
1929
1930		1116
1931	/*	1117	/*
1932	* This function updates various attributes about a specific space	1118	* This function updates various attributes about a specific space
1933	* on the map (what it looks like, whether it blocks magic,	1119	* on the map (what it looks like, whether it blocks magic,
1934	* has a living creatures, prevents people from passing	1120	* has a living creatures, prevents people from passing
1935	* through, etc)	1121	* through, etc)
1936	*/	1122	*/
1937	void	1123	void
1938	update_position (maptile *m, int x, int y)	1124	mapspace::update_ ()
1939	{	1125	{
1940	object *tmp, *last = NULL;	1126	object *tmp, *last = 0;
1941	uint8 flags = 0, oldflags, light = 0, anywhere = 0;	1127	uint8 flags = P_UPTODATE, light = 0, anywhere = 0;
1942	New_Face *top, *floor, *middle;
1943	object *top_obj, *floor_obj, *middle_obj;
1944	MoveType move_block = 0, move_slow = 0, move_on = 0, move_off = 0, move_allow = 0;	1128	MoveType move_block = 0, move_slow = 0, move_on = 0, move_off = 0, move_allow = 0;
1945		1129
1946	oldflags = GET_MAP_FLAGS (m, x, y);	1130	//object *middle = 0;
1947	if (!(oldflags & P_NEED_UPDATE))	1131	//object *top = 0;
1948	{	1132	//object *floor = 0;
1949	LOG (llevDebug, "update_position called with P_NEED_UPDATE not set: %s (%d, %d)\n", m->path, x, y);	1133	// this seems to generate better code than using locals, above
1950	return;	1134	object *&top = faces_obj[0] = 0;
1951	}	1135	object *&middle = faces_obj[1] = 0;
		1136	object *&floor = faces_obj[2] = 0;
1952		1137
1953	middle = blank_face;
1954	top = blank_face;
1955	floor = blank_face;
1956
1957	middle_obj = NULL;
1958	top_obj = NULL;
1959	floor_obj = NULL;
1960
1961	for (tmp = get_map_ob (m, x, y); tmp; last = tmp, tmp = tmp->above)	1138	for (tmp = bot; tmp; last = tmp, tmp = tmp->above)
1962	{	1139	{
1963
1964	/* This could be made additive I guess (two lights better than	1140	/* This could be made additive I guess (two lights better than
1965	* one). But if so, it shouldn't be a simple additive - 2	1141	* one). But if so, it shouldn't be a simple additive - 2
1966	* light bulbs do not illuminate twice as far as once since	1142	* light bulbs do not illuminate twice as far as once since
1967	* it is a disapation factor that is squared (or is it cubed?)	1143	* it is a dissapation factor that is cubed.
1968	*/	1144	*/
1969	if (tmp->glow_radius > light)	1145	if (tmp->glow_radius > light)
1970	light = tmp->glow_radius;	1146	light = tmp->glow_radius;
1971		1147
1972	/* This call is needed in order to update objects the player	1148	/* This call is needed in order to update objects the player
…		…
1978	* Always put the player down for drawing.	1154	* Always put the player down for drawing.
1979	*/	1155	*/
1980	if (!tmp->invisible)	1156	if (!tmp->invisible)
1981	{	1157	{
1982	if ((tmp->type == PLAYER || QUERY_FLAG (tmp, FLAG_MONSTER)))	1158	if ((tmp->type == PLAYER || QUERY_FLAG (tmp, FLAG_MONSTER)))
1983	{
1984	top = tmp->face;
1985	top_obj = tmp;	1159	top = tmp;
1986	}
1987	else if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))	1160	else if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))
1988	{	1161	{
1989	/* If we got a floor, that means middle and top were below it,	1162	/* If we got a floor, that means middle and top were below it,
1990	* so should not be visible, so we clear them.	1163	* so should not be visible, so we clear them.
1991	*/	1164	*/
1992	middle = blank_face;	1165	middle = 0;
1993	top = blank_face;	1166	top = 0;
1994	floor = tmp->face;
1995	floor_obj = tmp;	1167	floor = tmp;
1996	}	1168	}
1997	/* Flag anywhere have high priority */	1169	/* Flag anywhere have high priority */
1998	else if (QUERY_FLAG (tmp, FLAG_SEE_ANYWHERE))	1170	else if (QUERY_FLAG (tmp, FLAG_SEE_ANYWHERE))
1999	{	1171	{
2000	middle = tmp->face;
2001
2002	middle_obj = tmp;	1172	middle = tmp;
2003	anywhere = 1;	1173	anywhere = 1;
2004	}	1174	}
2005	/* Find the highest visible face around. If equal	1175	/* Find the highest visible face around. If equal
2006	* visibilities, we still want the one nearer to the	1176	* visibilities, we still want the one nearer to the
2007	* top	1177	* top
2008	*/	1178	*/
2009	else if (middle == blank_face || (tmp->face->visibility > middle->visibility && !anywhere))	1179	else if (!middle || (::faces [tmp->face].visibility > ::faces [middle->face].visibility && !anywhere))
2010	{
2011	middle = tmp->face;
2012	middle_obj = tmp;	1180	middle = tmp;
2013	}
2014	}	1181	}
		1182
2015	if (tmp == tmp->above)	1183	if (tmp == tmp->above)
2016	{	1184	{
2017	LOG (llevError, "Error in structure of map\n");	1185	LOG (llevError, "Error in structure of map\n");
2018	exit (-1);	1186	exit (-1);
2019	}	1187	}
2020		1188
2021	move_slow |= tmp->move_slow;	1189	move_slow |= tmp->move_slow;
2022	move_block |= tmp->move_block;	1190	move_block |= tmp->move_block;
2023	move_on |= tmp->move_on;	1191	move_on |= tmp->move_on;
2024	move_off |= tmp->move_off;	1192	move_off |= tmp->move_off;
2025	move_allow |= tmp->move_allow;	1193	move_allow |= tmp->move_allow;
2026		1194
2027	if (QUERY_FLAG (tmp, FLAG_ALIVE))
2028	flags |= P_IS_ALIVE;
2029	if (QUERY_FLAG (tmp, FLAG_NO_MAGIC))
2030	flags |= P_NO_MAGIC;
2031	if (QUERY_FLAG (tmp, FLAG_DAMNED))
2032	flags |= P_NO_CLERIC;
2033	if (tmp->type == SAFE_GROUND)
2034	flags |= P_SAFE;
2035
2036	if (QUERY_FLAG (tmp, FLAG_BLOCKSVIEW))	1195	if (QUERY_FLAG (tmp, FLAG_BLOCKSVIEW)) flags |= P_BLOCKSVIEW;
2037	flags |= P_BLOCKSVIEW;	1196	if (QUERY_FLAG (tmp, FLAG_NO_MAGIC)) flags |= P_NO_MAGIC;
2038	} /* for stack of objects */	1197	if (tmp->type == PLAYER) flags |= P_PLAYER;
2039		1198	if (tmp->type == SAFE_GROUND) flags |= P_SAFE;
2040	/* we don't want to rely on this function to have accurate flags, but	1199	if (QUERY_FLAG (tmp, FLAG_ALIVE)) flags |= P_IS_ALIVE;
2041	* since we're already doing the work, we calculate them here.	1200	if (QUERY_FLAG (tmp, FLAG_DAMNED)) flags |= P_NO_CLERIC;
2042	* if they don't match, logic is broken someplace.
2043	*/
2044	if (((oldflags & ~(P_NEED_UPDATE | P_NO_ERROR)) != flags) && (!(oldflags & P_NO_ERROR)))
2045	{	1201	}
2046	LOG (llevDebug, "update_position: updated flags do not match old flags: %s (old=%d,new=%d) %x != %x\n",	1202
2047	m->path, x, y, (oldflags & ~P_NEED_UPDATE), flags);	1203	this->light = light;
2048	}	1204	this->flags_ = flags;
2049	SET_MAP_FLAGS (m, x, y, flags);	1205	this->move_block = move_block & ~move_allow;
2050	SET_MAP_MOVE_BLOCK (m, x, y, move_block & ~move_allow);	1206	this->move_on = move_on;
2051	SET_MAP_MOVE_ON (m, x, y, move_on);	1207	this->move_off = move_off;
2052	SET_MAP_MOVE_OFF (m, x, y, move_off);	1208	this->move_slow = move_slow;
2053	SET_MAP_MOVE_SLOW (m, x, y, move_slow);
2054		1209
2055	/* At this point, we have a floor face (if there is a floor),	1210	/* At this point, we have a floor face (if there is a floor),
2056	* and the floor is set - we are not going to touch it at	1211	* and the floor is set - we are not going to touch it at
2057	* this point.	1212	* this point.
2058	* middle contains the highest visibility face.	1213	* middle contains the highest visibility face.
…		…
2065	* middle face. This should not happen, as we already have the	1220	* middle face. This should not happen, as we already have the
2066	* else statement above so middle should not get set. OTOH, it	1221	* else statement above so middle should not get set. OTOH, it
2067	* may be possible for the faces to match but be different objects.	1222	* may be possible for the faces to match but be different objects.
2068	*/	1223	*/
2069	if (top == middle)	1224	if (top == middle)
2070	middle = blank_face;	1225	middle = 0;
2071		1226
2072	/* There are three posibilities at this point:	1227	/* There are three posibilities at this point:
2073	* 1) top face is set, need middle to be set.	1228	* 1) top face is set, need middle to be set.
2074	* 2) middle is set, need to set top.	1229	* 2) middle is set, need to set top.
2075	* 3) neither middle or top is set - need to set both.	1230	* 3) neither middle or top is set - need to set both.
…		…
2080	/* Once we get to a floor, stop, since we already have a floor object */	1235	/* Once we get to a floor, stop, since we already have a floor object */
2081	if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))	1236	if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))
2082	break;	1237	break;
2083		1238
2084	/* If two top faces are already set, quit processing */	1239	/* If two top faces are already set, quit processing */
2085	if ((top != blank_face) && (middle != blank_face))	1240	if (top && middle)
2086	break;	1241	break;
2087		1242
2088	/* Only show visible faces, unless its the editor - show all */	1243	/* Only show visible faces */
2089	if (!tmp->invisible || editor)	1244	if (!tmp->invisible)
2090	{	1245	{
2091	/* Fill in top if needed */	1246	/* Fill in top if needed */
2092	if (top == blank_face)	1247	if (!top)
2093	{	1248	{
2094	top = tmp->face;
2095	top_obj = tmp;	1249	top = tmp;
2096	if (top == middle)	1250	if (top == middle)
2097	middle = blank_face;	1251	middle = 0;
2098	}	1252	}
2099	else	1253	else
2100	{	1254	{
2101	/* top is already set - we should only get here if	1255	/* top is already set - we should only get here if
2102	* middle is not set	1256	* middle is not set
2103	*	1257	*
2104	* Set the middle face and break out, since there is nothing	1258	* Set the middle face and break out, since there is nothing
2105	* more to fill in. We don't check visiblity here, since	1259	* more to fill in. We don't check visiblity here, since
2106	*	1260	*
2107	*/	1261	*/
2108	if (tmp->face != top)	1262	if (tmp != top)
2109	{	1263	{
2110	middle = tmp->face;
2111	middle_obj = tmp;	1264	middle = tmp;
2112	break;	1265	break;
2113	}	1266	}
2114	}	1267	}
2115	}	1268	}
2116	}	1269	}
		1270
2117	if (middle == floor)	1271	if (middle == floor)
2118	middle = blank_face;	1272	middle = 0;
		1273
2119	if (top == middle)	1274	if (top == middle)
2120	middle = blank_face;	1275	middle = 0;
2121	SET_MAP_FACE (m, x, y, top, 0);
2122	if (top != blank_face)
2123	SET_MAP_FACE_OBJ (m, x, y, top_obj, 0);
2124	else
2125	SET_MAP_FACE_OBJ (m, x, y, NULL, 0);
2126	SET_MAP_FACE (m, x, y, middle, 1);
2127	if (middle != blank_face)
2128	SET_MAP_FACE_OBJ (m, x, y, middle_obj, 1);
2129	else
2130	SET_MAP_FACE_OBJ (m, x, y, NULL, 1);
2131	SET_MAP_FACE (m, x, y, floor, 2);
2132	if (floor != blank_face)
2133	SET_MAP_FACE_OBJ (m, x, y, floor_obj, 2);
2134	else
2135	SET_MAP_FACE_OBJ (m, x, y, NULL, 2);
2136	SET_MAP_LIGHT (m, x, y, light);
2137	}
2138		1276
2139		1277	#if 0
2140	void	1278	faces_obj [0] = top;
2141	set_map_reset_time (maptile *map)	1279	faces_obj [1] = middle;
2142	{	1280	faces_obj [2] = floor;
2143	int timeout;	1281	#endif
2144
2145	timeout = MAP_RESET_TIMEOUT (map);
2146	if (timeout <= 0)
2147	timeout = MAP_DEFAULTRESET;
2148	if (timeout >= MAP_MAXRESET)
2149	timeout = MAP_MAXRESET;
2150	MAP_WHEN_RESET (map) = seconds () + timeout;
2151	}	1282	}
2152		1283
		1284	uint64
		1285	mapspace::volume () const
		1286	{
		1287	uint64 vol = 0;
		1288
		1289	for (object *op = top; op && !op->flag [FLAG_NO_PICK]; op = op->below)
		1290	vol += op->volume ();
		1291
		1292	return vol;
		1293	}
		1294
2153	/* this updates the orig_map->tile_map[tile_num] value after loading	1295	/* this updates the orig_map->tile_map[tile_num] value after finding
2154	* the map. It also takes care of linking back the freshly loaded	1296	* the map. It also takes care of linking back the freshly found
2155	* maps tile_map values if it tiles back to this one. It returns	1297	* maps tile_map values if it tiles back to this one. It returns
2156	* the value of orig_map->tile_map[tile_num]. It really only does this	1298	* the value of orig_map->tile_map[tile_num].
2157	* so that it is easier for calling functions to verify success.
2158	*/	1299	*/
2159
2160	static maptile *	1300	static inline maptile *
2161	load_and_link_tiled_map (maptile *orig_map, int tile_num)	1301	find_and_link (maptile *orig_map, int tile_num)
2162	{	1302	{
		1303	maptile *mp = orig_map->tile_map [tile_num];
		1304
		1305	if (!mp)
		1306	{
		1307	mp = orig_map->find_sync (orig_map->tile_path [tile_num], orig_map);
		1308
		1309	if (!mp)
		1310	{
		1311	// emergency mode, manufacture a dummy map, this creates a memleak, but thats fine
		1312	LOG (llevError, "FATAL: cannot load tiled map %s from %s, leaking memory and worse!\n",
		1313	&orig_map->tile_path[tile_num], &orig_map->path);
		1314	mp = new maptile (1, 1);
		1315	mp->alloc ();
		1316	mp->in_memory = MAP_IN_MEMORY;
		1317	}
		1318	}
		1319
2163	int dest_tile = (tile_num + 2) % 4;	1320	int dest_tile = (tile_num + 2) % 4;
2164	char *path = path_combine_and_normalize (orig_map->path, orig_map->tile_path[tile_num]);
2165		1321
2166	orig_map->tile_map[tile_num] = ready_map_name (path, 0);	1322	orig_map->tile_map [tile_num] = mp;
2167		1323
2168	/* need to do a strcmp here as the orig_map->path is not a shared string */	1324	// optimisation: back-link map to origin map if euclidean
2169	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))	1325	//TODO: non-euclidean maps MUST GO
		1326	if (orig_map->tile_map[tile_num]->tile_path[dest_tile] == orig_map->path)
2170	orig_map->tile_map[tile_num]->tile_map[dest_tile] = orig_map;	1327	orig_map->tile_map[tile_num]->tile_map[dest_tile] = orig_map;
2171		1328
2172	return orig_map->tile_map[tile_num];	1329	return mp;
		1330	}
		1331
		1332	static inline void
		1333	load_and_link (maptile *orig_map, int tile_num)
		1334	{
		1335	find_and_link (orig_map, tile_num)->load_sync ();
2173	}	1336	}
2174		1337
2175	/* this returns TRUE if the coordinates (x,y) are out of	1338	/* this returns TRUE if the coordinates (x,y) are out of
2176	* map m. This function also takes into account any	1339	* map m. This function also takes into account any
2177	* tiling considerations, loading adjacant maps as needed.	1340	* tiling considerations, loading adjacant maps as needed.
2178	* This is the function should always be used when it	1341	* This is the function should always be used when it
2179	* necessary to check for valid coordinates.	1342	* necessary to check for valid coordinates.
2180	* This function will recursively call itself for the	1343	* This function will recursively call itself for the
2181	* tiled maps.	1344	* tiled maps.
2182	*
2183	*
2184	*/	1345	*/
2185	int	1346	int
2186	out_of_map (maptile *m, int x, int y)	1347	out_of_map (maptile *m, int x, int y)
2187	{	1348	{
2188
2189	/* If we get passed a null map, this is obviously the	1349	/* If we get passed a null map, this is obviously the
2190	* case. This generally shouldn't happen, but if the	1350	* case. This generally shouldn't happen, but if the
2191	* map loads fail below, it could happen.	1351	* map loads fail below, it could happen.
2192	*/	1352	*/
2193	if (!m)	1353	if (!m)
…		…
2195		1355
2196	if (x < 0)	1356	if (x < 0)
2197	{	1357	{
2198	if (!m->tile_path[3])	1358	if (!m->tile_path[3])
2199	return 1;	1359	return 1;
		1360
2200	if (!m->tile_map[3] || m->tile_map[3]->in_memory != MAP_IN_MEMORY)	1361	if (!m->tile_map[3] || m->tile_map[3]->in_memory != MAP_IN_MEMORY)
2201	{	1362	find_and_link (m, 3);
2202	load_and_link_tiled_map (m, 3);	1363
2203	}
2204	return (out_of_map (m->tile_map[3], x + MAP_WIDTH (m->tile_map[3]), y));	1364	return out_of_map (m->tile_map[3], x + m->tile_map[3]->width, y);
2205	}	1365	}
2206	if (x >= MAP_WIDTH (m))	1366
		1367	if (x >= m->width)
2207	{	1368	{
2208	if (!m->tile_path[1])	1369	if (!m->tile_path[1])
2209	return 1;	1370	return 1;
		1371
2210	if (!m->tile_map[1] || m->tile_map[1]->in_memory != MAP_IN_MEMORY)	1372	if (!m->tile_map[1] || m->tile_map[1]->in_memory != MAP_IN_MEMORY)
2211	{	1373	find_and_link (m, 1);
2212	load_and_link_tiled_map (m, 1);	1374
2213	}
2214	return (out_of_map (m->tile_map[1], x - MAP_WIDTH (m), y));	1375	return out_of_map (m->tile_map[1], x - m->width, y);
2215	}	1376	}
		1377
2216	if (y < 0)	1378	if (y < 0)
2217	{	1379	{
2218	if (!m->tile_path[0])	1380	if (!m->tile_path[0])
2219	return 1;	1381	return 1;
		1382
2220	if (!m->tile_map[0] || m->tile_map[0]->in_memory != MAP_IN_MEMORY)	1383	if (!m->tile_map[0] || m->tile_map[0]->in_memory != MAP_IN_MEMORY)
2221	{	1384	find_and_link (m, 0);
2222	load_and_link_tiled_map (m, 0);	1385
2223	}
2224	return (out_of_map (m->tile_map[0], x, y + MAP_HEIGHT (m->tile_map[0])));	1386	return out_of_map (m->tile_map[0], x, y + m->tile_map[0]->height);
2225	}	1387	}
2226	if (y >= MAP_HEIGHT (m))	1388
		1389	if (y >= m->height)
2227	{	1390	{
2228	if (!m->tile_path[2])	1391	if (!m->tile_path[2])
2229	return 1;	1392	return 1;
		1393
2230	if (!m->tile_map[2] || m->tile_map[2]->in_memory != MAP_IN_MEMORY)	1394	if (!m->tile_map[2] || m->tile_map[2]->in_memory != MAP_IN_MEMORY)
2231	{	1395	find_and_link (m, 2);
2232	load_and_link_tiled_map (m, 2);	1396
2233	}
2234	return (out_of_map (m->tile_map[2], x, y - MAP_HEIGHT (m)));	1397	return out_of_map (m->tile_map[2], x, y - m->height);
2235	}	1398	}
2236		1399
2237	/* Simple case - coordinates are within this local	1400	/* Simple case - coordinates are within this local
2238	* map.	1401	* map.
2239	*/	1402	*/
…		…
2242		1405
2243	/* This is basically the same as out_of_map above, but	1406	/* This is basically the same as out_of_map above, but
2244	* instead we return NULL if no map is valid (coordinates	1407	* instead we return NULL if no map is valid (coordinates
2245	* out of bounds and no tiled map), otherwise it returns	1408	* out of bounds and no tiled map), otherwise it returns
2246	* the map as that the coordinates are really on, and	1409	* the map as that the coordinates are really on, and
2247	* updates x and y to be the localized coordinates.	1410	* updates x and y to be the localised coordinates.
2248	* Using this is more efficient of calling out_of_map	1411	* Using this is more efficient of calling out_of_map
2249	* and then figuring out what the real map is	1412	* and then figuring out what the real map is
2250	*/	1413	*/
2251	maptile *	1414	maptile *
2252	get_map_from_coord (maptile *m, sint16 * x, sint16 * y)	1415	maptile::xy_find (sint16 &x, sint16 &y)
2253	{	1416	{
2254
2255	if (*x < 0)	1417	if (x < 0)
2256	{	1418	{
2257	if (!m->tile_path[3])	1419	if (!tile_path[3])
2258	return NULL;	1420	return 0;
2259	if (!m->tile_map[3] || m->tile_map[3]->in_memory != MAP_IN_MEMORY)
2260	load_and_link_tiled_map (m, 3);
2261		1421
2262	*x += MAP_WIDTH (m->tile_map[3]);	1422	find_and_link (this, 3);
2263	return (get_map_from_coord (m->tile_map[3], x, y));	1423	x += tile_map[3]->width;
2264	}	1424	return tile_map[3]->xy_find (x, y);
2265	if (*x >= MAP_WIDTH (m))
2266	{	1425	}
		1426
		1427	if (x >= width)
		1428	{
2267	if (!m->tile_path[1])	1429	if (!tile_path[1])
2268	return NULL;	1430	return 0;
2269	if (!m->tile_map[1] || m->tile_map[1]->in_memory != MAP_IN_MEMORY)
2270	load_and_link_tiled_map (m, 1);
2271		1431
2272	*x -= MAP_WIDTH (m);	1432	find_and_link (this, 1);
2273	return (get_map_from_coord (m->tile_map[1], x, y));	1433	x -= width;
		1434	return tile_map[1]->xy_find (x, y);
2274	}	1435	}
		1436
2275	if (*y < 0)	1437	if (y < 0)
2276	{	1438	{
2277	if (!m->tile_path[0])	1439	if (!tile_path[0])
2278	return NULL;	1440	return 0;
2279	if (!m->tile_map[0] || m->tile_map[0]->in_memory != MAP_IN_MEMORY)
2280	load_and_link_tiled_map (m, 0);
2281		1441
2282	*y += MAP_HEIGHT (m->tile_map[0]);	1442	find_and_link (this, 0);
2283	return (get_map_from_coord (m->tile_map[0], x, y));	1443	y += tile_map[0]->height;
2284	}	1444	return tile_map[0]->xy_find (x, y);
2285	if (*y >= MAP_HEIGHT (m))
2286	{	1445	}
		1446
		1447	if (y >= height)
		1448	{
2287	if (!m->tile_path[2])	1449	if (!tile_path[2])
2288	return NULL;	1450	return 0;
2289	if (!m->tile_map[2] || m->tile_map[2]->in_memory != MAP_IN_MEMORY)
2290	load_and_link_tiled_map (m, 2);
2291		1451
2292	*y -= MAP_HEIGHT (m);	1452	find_and_link (this, 2);
2293	return (get_map_from_coord (m->tile_map[2], x, y));	1453	y -= height;
		1454	return tile_map[2]->xy_find (x, y);
2294	}	1455	}
2295		1456
2296	/* Simple case - coordinates are within this local	1457	/* Simple case - coordinates are within this local
2297	* map.	1458	* map.
2298	*/	1459	*/
2299
2300	return m;	1460	return this;
2301	}	1461	}
2302		1462
2303	/**	1463	/**
2304	* Return whether map2 is adjacent to map1. If so, store the distance from	1464	* Return whether map2 is adjacent to map1. If so, store the distance from
2305	* map1 to map2 in dx/dy.	1465	* map1 to map2 in dx/dy.
2306	*/	1466	*/
2307	static int	1467	int
2308	adjacent_map (const maptile *map1, const maptile *map2, int *dx, int *dy)	1468	adjacent_map (const maptile *map1, const maptile *map2, int *dx, int *dy)
2309	{	1469	{
2310	if (!map1 || !map2)	1470	if (!map1 || !map2)
2311	return 0;	1471	return 0;
2312		1472
		1473	//TODO: this doesn't actually check corretcly when intermediate maps are not loaded
		1474	//fix: compare paths instead (this is likely faster, too!)
2313	if (map1 == map2)	1475	if (map1 == map2)
2314	{	1476	{
2315	*dx = 0;	1477	*dx = 0;
2316	*dy = 0;	1478	*dy = 0;
2317
2318	}	1479	}
2319	else if (map1->tile_map[0] == map2)	1480	else if (map1->tile_map[0] == map2)
2320	{ /* up */	1481	{ /* up */
2321	*dx = 0;	1482	*dx = 0;
2322	*dy = -MAP_HEIGHT (map2);	1483	*dy = -map2->height;
2323	}	1484	}
2324	else if (map1->tile_map[1] == map2)	1485	else if (map1->tile_map[1] == map2)
2325	{ /* right */	1486	{ /* right */
2326	*dx = MAP_WIDTH (map1);	1487	*dx = map1->width;
2327	*dy = 0;	1488	*dy = 0;
2328	}	1489	}
2329	else if (map1->tile_map[2] == map2)	1490	else if (map1->tile_map[2] == map2)
2330	{ /* down */	1491	{ /* down */
2331	*dx = 0;	1492	*dx = 0;
2332	*dy = MAP_HEIGHT (map1);	1493	*dy = map1->height;
2333	}	1494	}
2334	else if (map1->tile_map[3] == map2)	1495	else if (map1->tile_map[3] == map2)
2335	{ /* left */	1496	{ /* left */
2336	*dx = -MAP_WIDTH (map2);	1497	*dx = -map2->width;
2337	*dy = 0;	1498	*dy = 0;
2338
2339	}	1499	}
2340	else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[1] == map2)	1500	else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[1] == map2)
2341	{ /* up right */	1501	{ /* up right */
2342	*dx = MAP_WIDTH (map1->tile_map[0]);	1502	*dx = map1->tile_map[0]->width;
2343	*dy = -MAP_HEIGHT (map1->tile_map[0]);	1503	*dy = -map1->tile_map[0]->height;
2344	}	1504	}
2345	else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[3] == map2)	1505	else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[3] == map2)
2346	{ /* up left */	1506	{ /* up left */
2347	*dx = -MAP_WIDTH (map2);	1507	*dx = -map2->width;
2348	*dy = -MAP_HEIGHT (map1->tile_map[0]);	1508	*dy = -map1->tile_map[0]->height;
2349	}	1509	}
2350	else if (map1->tile_map[1] && map1->tile_map[1]->tile_map[0] == map2)	1510	else if (map1->tile_map[1] && map1->tile_map[1]->tile_map[0] == map2)
2351	{ /* right up */	1511	{ /* right up */
2352	*dx = MAP_WIDTH (map1);	1512	*dx = map1->width;
2353	*dy = -MAP_HEIGHT (map2);	1513	*dy = -map2->height;
2354	}	1514	}
2355	else if (map1->tile_map[1] && map1->tile_map[1]->tile_map[2] == map2)	1515	else if (map1->tile_map[1] && map1->tile_map[1]->tile_map[2] == map2)
2356	{ /* right down */	1516	{ /* right down */
2357	*dx = MAP_WIDTH (map1);	1517	*dx = map1->width;
2358	*dy = MAP_HEIGHT (map1->tile_map[1]);	1518	*dy = map1->tile_map[1]->height;
2359	}	1519	}
2360	else if (map1->tile_map[2] && map1->tile_map[2]->tile_map[1] == map2)	1520	else if (map1->tile_map[2] && map1->tile_map[2]->tile_map[1] == map2)
2361	{ /* down right */	1521	{ /* down right */
2362	*dx = MAP_WIDTH (map1->tile_map[2]);	1522	*dx = map1->tile_map[2]->width;
2363	*dy = MAP_HEIGHT (map1);	1523	*dy = map1->height;
2364	}	1524	}
2365	else if (map1->tile_map[2] && map1->tile_map[2]->tile_map[3] == map2)	1525	else if (map1->tile_map[2] && map1->tile_map[2]->tile_map[3] == map2)
2366	{ /* down left */	1526	{ /* down left */
2367	*dx = -MAP_WIDTH (map2);	1527	*dx = -map2->width;
2368	*dy = MAP_HEIGHT (map1);	1528	*dy = map1->height;
2369	}	1529	}
2370	else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[0] == map2)	1530	else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[0] == map2)
2371	{ /* left up */	1531	{ /* left up */
2372	*dx = -MAP_WIDTH (map1->tile_map[3]);	1532	*dx = -map1->tile_map[3]->width;
2373	*dy = -MAP_HEIGHT (map2);	1533	*dy = -map2->height;
2374	}	1534	}
2375	else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[2] == map2)	1535	else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[2] == map2)
2376	{ /* left down */	1536	{ /* left down */
2377	*dx = -MAP_WIDTH (map1->tile_map[3]);	1537	*dx = -map1->tile_map[3]->width;
2378	*dy = MAP_HEIGHT (map1->tile_map[3]);	1538	*dy = map1->tile_map[3]->height;
2379
2380	}	1539	}
2381	else	1540	else
2382	{ /* not "adjacent" enough */
2383	return 0;	1541	return 0;
2384	}
2385		1542
2386	return 1;	1543	return 1;
		1544	}
		1545
		1546	maptile *
		1547	maptile::xy_load (sint16 &x, sint16 &y)
		1548	{
		1549	maptile *map = xy_find (x, y);
		1550
		1551	if (map)
		1552	map->load_sync ();
		1553
		1554	return map;
		1555	}
		1556
		1557	maptile *
		1558	get_map_from_coord (maptile *m, sint16 *x, sint16 *y)
		1559	{
		1560	return m->xy_load (*x, *y);
2387	}	1561	}
2388		1562
2389	/* From map.c	1563	/* From map.c
2390	* This is used by get_player to determine where the other	1564	* This is used by get_player to determine where the other
2391	* creature is. get_rangevector takes into account map tiling,	1565	* creature is. get_rangevector takes into account map tiling,
2392	* so you just can not look the the map coordinates and get the	1566	* so you just can not look the the map coordinates and get the
2393	* righte value. distance_x/y are distance away, which	1567	* righte value. distance_x/y are distance away, which
2394	* can be negativbe. direction is the crossfire direction scheme	1568	* can be negative. direction is the crossfire direction scheme
2395	* that the creature should head. part is the part of the	1569	* that the creature should head. part is the part of the
2396	* monster that is closest.	1570	* monster that is closest.
2397	*	1571	*
2398	* get_rangevector looks at op1 and op2, and fills in the	1572	* get_rangevector looks at op1 and op2, and fills in the
2399	* structure for op1 to get to op2.	1573	* structure for op1 to get to op2.
…		…
2404	* be unexpected	1578	* be unexpected
2405	*	1579	*
2406	* currently, the only flag supported (0x1) is don't translate for	1580	* currently, the only flag supported (0x1) is don't translate for
2407	* closest body part of 'op1'	1581	* closest body part of 'op1'
2408	*/	1582	*/
2409
2410	void	1583	void
2411	get_rangevector (object *op1, object *op2, rv_vector * retval, int flags)	1584	get_rangevector (object *op1, object *op2, rv_vector * retval, int flags)
2412	{	1585	{
2413	if (!adjacent_map (op1->map, op2->map, &retval->distance_x, &retval->distance_y))	1586	if (!adjacent_map (op1->map, op2->map, &retval->distance_x, &retval->distance_y))
2414	{	1587	{
2415	/* be conservative and fill in _some_ data */	1588	/* be conservative and fill in _some_ data */
2416	retval->distance = 100000;	1589	retval->distance = 10000;
2417	retval->distance_x = 32767;	1590	retval->distance_x = 10000;
2418	retval->distance_y = 32767;	1591	retval->distance_y = 10000;
2419	retval->direction = 0;	1592	retval->direction = 0;
2420	retval->part = 0;	1593	retval->part = 0;
2421	}	1594	}
2422	else	1595	else
2423	{	1596	{
…		…
2428		1601
2429	best = op1;	1602	best = op1;
2430	/* If this is multipart, find the closest part now */	1603	/* If this is multipart, find the closest part now */
2431	if (!(flags & 0x1) && op1->more)	1604	if (!(flags & 0x1) && op1->more)
2432	{	1605	{
2433	object *tmp;
2434	int best_distance = retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y, tmpi;	1606	int best_distance = retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y, tmpi;
2435		1607
2436	/* we just take the offset of the piece to head to figure	1608	/* we just take the offset of the piece to head to figure
2437	* distance instead of doing all that work above again	1609	* distance instead of doing all that work above again
2438	* since the distance fields we set above are positive in the	1610	* since the distance fields we set above are positive in the
2439	* same axis as is used for multipart objects, the simply arithmetic	1611	* same axis as is used for multipart objects, the simply arithmetic
2440	* below works.	1612	* below works.
2441	*/	1613	*/
2442	for (tmp = op1->more; tmp != NULL; tmp = tmp->more)	1614	for (object *tmp = op1->more; tmp; tmp = tmp->more)
2443	{	1615	{
2444	tmpi = (op1->x - tmp->x + retval->distance_x) * (op1->x - tmp->x + retval->distance_x) +	1616	tmpi = (op1->x - tmp->x + retval->distance_x) * (op1->x - tmp->x + retval->distance_x) +
2445	(op1->y - tmp->y + retval->distance_y) * (op1->y - tmp->y + retval->distance_y);	1617	(op1->y - tmp->y + retval->distance_y) * (op1->y - tmp->y + retval->distance_y);
2446	if (tmpi < best_distance)	1618	if (tmpi < best_distance)
2447	{	1619	{
2448	best_distance = tmpi;	1620	best_distance = tmpi;
2449	best = tmp;	1621	best = tmp;
2450	}	1622	}
2451	}	1623	}
		1624
2452	if (best != op1)	1625	if (best != op1)
2453	{	1626	{
2454	retval->distance_x += op1->x - best->x;	1627	retval->distance_x += op1->x - best->x;
2455	retval->distance_y += op1->y - best->y;	1628	retval->distance_y += op1->y - best->y;
2456	}	1629	}
2457	}	1630	}
		1631
2458	retval->part = best;	1632	retval->part = best;
2459	retval->distance = isqrt (retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y);	1633	retval->distance = upos_max (abs (retval->distance_x), abs (retval->distance_y));
2460	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);	1634	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);
2461	}	1635	}
2462	}	1636	}
2463		1637
2464	/* this is basically the same as get_rangevector above, but instead of	1638	/* this is basically the same as get_rangevector above, but instead of
…		…
2469	* flags has no meaning for this function at this time - I kept it in to	1643	* flags has no meaning for this function at this time - I kept it in to
2470	* be more consistant with the above function and also in case they are needed	1644	* be more consistant with the above function and also in case they are needed
2471	* for something in the future. Also, since no object is pasted, the best	1645	* for something in the future. Also, since no object is pasted, the best
2472	* field of the rv_vector is set to NULL.	1646	* field of the rv_vector is set to NULL.
2473	*/	1647	*/
2474
2475	void	1648	void
2476	get_rangevector_from_mapcoord (const maptile *m, int x, int y, const object *op2, rv_vector * retval, int flags)	1649	get_rangevector_from_mapcoord (const maptile *m, int x, int y, const object *op2, rv_vector *retval, int flags)
2477	{	1650	{
2478	if (!adjacent_map (m, op2->map, &retval->distance_x, &retval->distance_y))	1651	if (!adjacent_map (m, op2->map, &retval->distance_x, &retval->distance_y))
2479	{	1652	{
2480	/* be conservative and fill in _some_ data */	1653	/* be conservative and fill in _some_ data */
2481	retval->distance = 100000;	1654	retval->distance = 100000;
…		…
2488	{	1661	{
2489	retval->distance_x += op2->x - x;	1662	retval->distance_x += op2->x - x;
2490	retval->distance_y += op2->y - y;	1663	retval->distance_y += op2->y - y;
2491		1664
2492	retval->part = NULL;	1665	retval->part = NULL;
2493	retval->distance = isqrt (retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y);	1666	retval->distance = idistance (retval->distance_x, retval->distance_y);
2494	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);	1667	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);
2495	}	1668	}
2496	}	1669	}
2497		1670
2498	/* Returns true of op1 and op2 are effectively on the same map	1671	/* Returns true of op1 and op2 are effectively on the same map
2499	* (as related to map tiling). Note that this looks for a path from	1672	* (as related to map tiling). Note that this looks for a path from
2500	* op1 to op2, so if the tiled maps are assymetric and op2 has a path	1673	* op1 to op2, so if the tiled maps are asymetric and op2 has a path
2501	* to op1, this will still return false.	1674	* to op1, this will still return false.
2502	* Note we only look one map out to keep the processing simple	1675	* Note we only look one map out to keep the processing simple
2503	* and efficient. This could probably be a macro.	1676	* and efficient. This could probably be a macro.
2504	* MSW 2001-08-05	1677	* MSW 2001-08-05
2505	*/	1678	*/
…		…
2508	{	1681	{
2509	int dx, dy;	1682	int dx, dy;
2510		1683
2511	return adjacent_map (op1->map, op2->map, &dx, &dy);	1684	return adjacent_map (op1->map, op2->map, &dx, &dy);
2512	}	1685	}
		1686
		1687	object *
		1688	maptile::insert (object *op, int x, int y, object *originator, int flags)
		1689	{
		1690	if (!op->flag [FLAG_REMOVED])
		1691	op->remove ();
		1692
		1693	return insert_ob_in_map_at (op, this, originator, flags, x, y);
		1694	}
		1695
		1696	region *
		1697	maptile::region (int x, int y) const
		1698	{
		1699	if (regions
		1700	&& regionmap
		1701	&& !OUT_OF_REAL_MAP (this, x, y))
		1702	if (struct region *reg = regionmap [regions [y * width + x]])
		1703	return reg;
		1704
		1705	if (default_region)
		1706	return default_region;
		1707
		1708	return ::region::default_region ();
		1709	}
		1710
		1711	/* picks a random object from a style map.
		1712	* Redone by MSW so it should be faster and not use static
		1713	* variables to generate tables.
		1714	*/
		1715	object *
		1716	maptile::pick_random_object () const
		1717	{
		1718	/* while returning a null object will result in a crash, that
		1719	* is actually preferable to an infinite loop. That is because
		1720	* most servers will automatically restart in case of crash.
		1721	* Change the logic on getting the random space - shouldn't make
		1722	* any difference, but this seems clearer to me.
		1723	*/
		1724	for (int i = 1000; --i;)
		1725	{
		1726	object *pick = at (rndm (width), rndm (height)).bot;
		1727
		1728	// do not prefer big monsters just because they are big.
		1729	if (pick && pick->head_ () == pick)
		1730	return pick->head_ ();
		1731	}
		1732
		1733	// instead of crashing in the unlikely(?) case, try to return *something*
		1734	return get_archetype ("blocked");
		1735	}
		1736

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