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Comparing deliantra/server/common/map.C (file contents):
Revision 1.30 by root, Thu Sep 14 22:33:59 2006 UTC vs.
Revision 1.160 by root, Mon Oct 12 14:00:57 2009 UTC

1	/*	1	/*
2	CrossFire, A Multiplayer game for X-windows	2	* This file is part of Deliantra, the Roguelike Realtime MMORPG.
3		3	*
		4	* Copyright (©) 2005,2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra 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	* Deliantra is free software: you can redistribute it and/or modify it under
8	it under the terms of the GNU General Public License as published by	9	* the terms of the Affero GNU General Public License as published by the
9	the Free Software Foundation; either version 2 of the License, or	10	* Free Software Foundation, either version 3 of the License, or (at your
10	(at your option) any later version.	11	* 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 Affero GNU General Public License
18	along with this program; if not, write to the Free Software	19	* and the GNU General Public License along with this program. If not, see
19	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	20	* <http://www.gnu.org/licenses/>.
20		21	*
21	The authors can be reached via e-mail at <crossfire@schmorp.de>	22	* The authors can be reached via e-mail to <support@deliantra.net>
22	*/	23	*/
23		24
24
25	#include <global.h>
26	#include <funcpoint.h>
27
28	#include <loader.h>
29	#ifndef WIN32 /* ---win32 exclude header */
30	# include <unistd.h>	25	#include <unistd.h>
31	#endif /* win32 */
32		26
		27	#include "global.h"
		28	#include "loader.h"
33	#include "path.h"	29	#include "path.h"
34		30
35		31	sint8 maptile::outdoor_darkness;
36	extern int nrofallocobjects, nroffreeobjects;
37
38	/*
39	* Returns the mapstruct which has a name matching the given argument.
40	* return NULL if no match is found.
41	*/
42
43	mapstruct *
44	has_been_loaded (const char *name)
45	{
46	mapstruct *map;
47
48	if (!name || !*name)
49	return 0;
50	for (map = first_map; map; map = map->next)
51	if (!strcmp (name, map->path))
52	break;
53	return (map);
54	}
55
56	/*
57	* This makes a path absolute outside the world of Crossfire.
58	* In other words, it prepends LIBDIR/MAPDIR/ to the given path
59	* and returns the pointer to a static array containing the result.
60	* it really should be called create_mapname
61	*/
62
63	const char *
64	create_pathname (const char *name)
65	{
66	static char buf[MAX_BUF];
67
68	/* Why? having extra / doesn't confuse unix anyplace? Dependancies
69	* someplace else in the code? msw 2-17-97
70	*/
71	if (*name == '/')
72	sprintf (buf, "%s/%s%s", settings.datadir, settings.mapdir, name);
73	else
74	sprintf (buf, "%s/%s/%s", settings.datadir, settings.mapdir, name);
75	return (buf);
76	}
77
78	/*
79	* same as create_pathname, but for the overlay maps.
80	*/
81
82	const char *
83	create_overlay_pathname (const char *name)
84	{
85	static char buf[MAX_BUF];
86
87	/* Why? having extra / doesn't confuse unix anyplace? Dependancies
88	* someplace else in the code? msw 2-17-97
89	*/
90	if (*name == '/')
91	sprintf (buf, "%s/%s%s", settings.localdir, settings.mapdir, name);
92	else
93	sprintf (buf, "%s/%s/%s", settings.localdir, settings.mapdir, name);
94	return (buf);
95	}
96
97	/*
98	* same as create_pathname, but for the template maps.
99	*/
100
101	const char *
102	create_template_pathname (const char *name)
103	{
104	static char buf[MAX_BUF];
105
106	/* Why? having extra / doesn't confuse unix anyplace? Dependancies
107	* someplace else in the code? msw 2-17-97
108	*/
109	if (*name == '/')
110	sprintf (buf, "%s/%s%s", settings.localdir, settings.templatedir, name);
111	else
112	sprintf (buf, "%s/%s/%s", settings.localdir, settings.templatedir, name);
113	return (buf);
114	}
115
116	/*
117	* This makes absolute path to the itemfile where unique objects
118	* will be saved. Converts '/' to '@'. I think it's essier maintain
119	* files than full directory structure, but if this is problem it can
120	* be changed.
121	*/
122	static const char *
123	create_items_path (const char *s)
124	{
125	static char buf[MAX_BUF];
126	char *t;
127
128	if (*s == '/')
129	s++;
130
131	sprintf (buf, "%s/%s/", settings.localdir, settings.uniquedir);
132
133	for (t = buf + strlen (buf); *s; s++, t++)
134	if (*s == '/')
135	*t = '@';
136	else
137	*t = *s;
138	*t = 0;
139	return (buf);
140	}
141
142
143	/*
144	* This function checks if a file with the given path exists.
145	* -1 is returned if it fails, otherwise the mode of the file
146	* is returned.
147	* It tries out all the compression suffixes listed in the uncomp[] array.
148	*
149	* If prepend_dir is set, then we call create_pathname (which prepends
150	* libdir & mapdir). Otherwise, we assume the name given is fully
151	* complete.
152	* Only the editor actually cares about the writablity of this -
153	* the rest of the code only cares that the file is readable.
154	* when the editor goes away, the call to stat should probably be
155	* replaced by an access instead (similar to the windows one, but
156	* that seems to be missing the prepend_dir processing
157	*/
158
159	int
160	check_path (const char *name, int prepend_dir)
161	{
162	char buf[MAX_BUF];
163
164	#ifndef WIN32
165	char *endbuf;
166	struct stat statbuf;
167	int mode = 0;
168	#endif
169
170	if (prepend_dir)
171	strcpy (buf, create_pathname (name));
172	else
173	strcpy (buf, name);
174	#ifdef WIN32 /* ***win32: check this sucker in windows style. */
175	return (_access (buf, 0));
176	#else
177
178	/* old method (strchr(buf, '\0')) seemd very odd to me -
179	* this method should be equivalant and is clearer.
180	* Can not use strcat because we need to cycle through
181	* all the names.
182	*/
183	endbuf = buf + strlen (buf);
184
185	if (stat (buf, &statbuf))
186	return -1;
187	if (!S_ISREG (statbuf.st_mode))
188	return (-1);
189
190	if (((statbuf.st_mode & S_IRGRP) && getegid () == statbuf.st_gid) ||
191	((statbuf.st_mode & S_IRUSR) && geteuid () == statbuf.st_uid) || (statbuf.st_mode & S_IROTH))
192	mode |= 4;
193
194	if ((statbuf.st_mode & S_IWGRP && getegid () == statbuf.st_gid) ||
195	(statbuf.st_mode & S_IWUSR && geteuid () == statbuf.st_uid) || (statbuf.st_mode & S_IWOTH))
196	mode |= 2;
197
198	return (mode);
199	#endif
200	}
201
202	/*
203	* Prints out debug-information about a map.
204	* Dumping these at llevError doesn't seem right, but is
205	* necessary to make sure the information is in fact logged.
206	*/
207
208	void
209	dump_map (const mapstruct *m)
210	{
211	LOG (llevError, "Map %s status: %d.\n", m->path, m->in_memory);
212	LOG (llevError, "Size: %dx%d Start: %d,%d\n", MAP_WIDTH (m), MAP_HEIGHT (m), MAP_ENTER_X (m), MAP_ENTER_Y (m));
213
214	if (m->msg != NULL)
215	LOG (llevError, "Message:\n%s", m->msg);
216
217	if (m->maplore != NULL)
218	LOG (llevError, "Lore:\n%s", m->maplore);
219
220	if (m->tmpname != NULL)
221	LOG (llevError, "Tmpname: %s\n", m->tmpname);
222
223	LOG (llevError, "Difficulty: %d\n", m->difficulty);
224	LOG (llevError, "Darkness: %d\n", m->darkness);
225	}
226
227	/*
228	* Prints out debug-information about all maps.
229	* This basically just goes through all the maps and calls
230	* dump_map on each one.
231	*/
232
233	void
234	dump_all_maps (void)
235	{
236	mapstruct *m;
237
238	for (m = first_map; m != NULL; m = m->next)
239	{
240	dump_map (m);
241	}
242	}
243		32
244	/* This rolls up wall, blocks_magic, blocks_view, etc, all into	33	/* This rolls up wall, blocks_magic, blocks_view, etc, all into
245	* one function that just returns a P_.. value (see map.h)	34	* one function that just returns a P_.. value (see map.h)
246	* it will also do map translation for tiled maps, returning	35	* it will also do map translation for tiled maps, returning
247	* new values into newmap, nx, and ny. Any and all of those	36	* new values into newmap, nx, and ny. Any and all of those
…		…
250	* is needed. The case of not passing values is if we're just	39	* is needed. The case of not passing values is if we're just
251	* checking for the existence of something on those spaces, but	40	* checking for the existence of something on those spaces, but
252	* don't expect to insert/remove anything from those spaces.	41	* don't expect to insert/remove anything from those spaces.
253	*/	42	*/
254	int	43	int
255	get_map_flags (mapstruct *oldmap, mapstruct **newmap, sint16 x, sint16 y, sint16 * nx, sint16 * ny)	44	get_map_flags (maptile *oldmap, maptile **newmap, sint16 x, sint16 y, sint16 *nx, sint16 *ny)
256	{	45	{
257	sint16 newx, newy;	46	sint16 newx = x;
258	int retval = 0;	47	sint16 newy = y;
259	mapstruct *mp;
260		48
261	if (out_of_map (oldmap, x, y))	49	maptile *mp = get_map_from_coord (oldmap, &newx, &newy);
		50
		51	if (!mp)
262	return P_OUT_OF_MAP;	52	return P_OUT_OF_MAP;
263	newx = x;
264	newy = y;
265	mp = get_map_from_coord (oldmap, &newx, &newy);
266	if (mp != oldmap)
267	retval |= P_NEW_MAP;
268	if (newmap)
269	*newmap = mp;
270	if (nx)
271	*nx = newx;
272	if (ny)
273	*ny = newy;
274		53
275	retval |= mp->spaces[newx + mp->width * newy].flags;	54	if (newmap) *newmap = mp;
		55	if (nx) *nx = newx;
		56	if (ny) *ny = newy;
276		57
277	return retval;	58	return mp->at (newx, newy).flags () | (mp != oldmap ? P_NEW_MAP : 0);
278	}	59	}
279
280		60
281	/*	61	/*
282	* Returns true if the given coordinate is blocked except by the	62	* Returns true if the given coordinate is blocked except by the
283	* object passed is not blocking. This is used with	63	* object passed is not blocking. This is used with
284	* multipart monsters - if we want to see if a 2x2 monster	64	* multipart monsters - if we want to see if a 2x2 monster
…		…
288	* monster.	68	* monster.
289	* m, x, y are the target map/coordinates - needed for map tiling.	69	* m, x, y are the target map/coordinates - needed for map tiling.
290	* the coordinates & map passed in should have been updated for tiling	70	* the coordinates & map passed in should have been updated for tiling
291	* by the caller.	71	* by the caller.
292	*/	72	*/
293
294	int	73	int
295	blocked_link (object *ob, mapstruct *m, int sx, int sy)	74	blocked_link (object *ob, maptile *m, int sx, int sy)
296	{	75	{
297	object *tmp;	76	object *tmp;
298	int mflags, blocked;	77	int mflags, blocked;
299		78
300	/* Make sure the coordinates are valid - they should be, as caller should	79	/* Make sure the coordinates are valid - they should be, as caller should
…		…
307	}	86	}
308		87
309	/* Save some cycles - instead of calling get_map_flags(), just get the value	88	/* Save some cycles - instead of calling get_map_flags(), just get the value
310	* directly.	89	* directly.
311	*/	90	*/
312	mflags = m->spaces[sx + m->width * sy].flags;	91	mflags = m->at (sx, sy).flags ();
313		92
314	blocked = GET_MAP_MOVE_BLOCK (m, sx, sy);	93	blocked = GET_MAP_MOVE_BLOCK (m, sx, sy);
315		94
316	/* If space is currently not blocked by anything, no need to	95	/* If space is currently not blocked by anything, no need to
317	* go further. Not true for players - all sorts of special	96	* go further. Not true for players - all sorts of special
…		…
328	* let the player through (inventory checkers for example)	107	* let the player through (inventory checkers for example)
329	*/	108	*/
330	if (!(mflags & P_IS_ALIVE) && !OB_TYPE_MOVE_BLOCK (ob, blocked))	109	if (!(mflags & P_IS_ALIVE) && !OB_TYPE_MOVE_BLOCK (ob, blocked))
331	return 0;	110	return 0;
332		111
333	if (ob->head != NULL)
334	ob = ob->head;	112	ob = ob->head_ ();
335		113
336	/* We basically go through the stack of objects, and if there is	114	/* We basically go through the stack of objects, and if there is
337	* some other object that has NO_PASS or FLAG_ALIVE set, return	115	* some other object that has NO_PASS or FLAG_ALIVE set, return
338	* true. If we get through the entire stack, that must mean	116	* true. If we get through the entire stack, that must mean
339	* ob is blocking it, so return 0.	117	* ob is blocking it, so return 0.
340	*/	118	*/
341	for (tmp = GET_MAP_OB (m, sx, sy); tmp != NULL; tmp = tmp->above)	119	for (tmp = GET_MAP_OB (m, sx, sy); tmp; tmp = tmp->above)
342	{	120	{
343		121
344	/* This must be before the checks below. Code for inventory checkers. */	122	/* This must be before the checks below. Code for inventory checkers. */
345	if (tmp->type == CHECK_INV && OB_MOVE_BLOCK (ob, tmp))	123	if (tmp->type == CHECK_INV && OB_MOVE_BLOCK (ob, tmp))
346	{	124	{
…		…
369	else	147	else
370	{	148	{
371	/* Broke apart a big nasty if into several here to make	149	/* Broke apart a big nasty if into several here to make
372	* this more readable. first check - if the space blocks	150	* this more readable. first check - if the space blocks
373	* movement, can't move here.	151	* movement, can't move here.
374	* second - if a monster, can't move there, unles it is a	152	* second - if a monster, can't move there, unless it is a
375	* hidden dm	153	* hidden dm
376	*/	154	*/
377	if (OB_MOVE_BLOCK (ob, tmp))	155	if (OB_MOVE_BLOCK (ob, tmp))
378	return 1;	156	return 1;
379	if (QUERY_FLAG (tmp, FLAG_ALIVE) && tmp->head != ob && tmp != ob &&	157
380	tmp->type != DOOR && !(QUERY_FLAG (tmp, FLAG_WIZ) && tmp->contr->hidden))	158	if (tmp->flag [FLAG_ALIVE]
		159	&& tmp->head_ () != ob
		160	&& tmp != ob
		161	&& tmp->type != DOOR
		162	&& !(tmp->flag [FLAG_WIZ] && tmp->contr->hidden))
381	return 1;	163	return 1;
382	}	164	}
383		165
384	}	166	}
385	return 0;	167	return 0;
386	}	168	}
387		169
388
389	/*	170	/*
390	* Returns true if the given object can't fit in the given spot.	171	* Returns qthe blocking object if the given object can't fit in the given
391	* This is meant for multi space objects - for single space objecs,	172	* spot. This is meant for multi space objects - for single space objecs,
392	* just calling get_map_blocked and checking that against movement type	173	* just calling get_map_blocked and checking that against movement type
393	* of object. This function goes through all the parts of the	174	* of object. This function goes through all the parts of the multipart
394	* multipart object and makes sure they can be inserted.	175	* object and makes sure they can be inserted.
395	*	176	*
396	* While this doesn't call out of map, the get_map_flags does.	177	* While this doesn't call out of map, the get_map_flags does.
397	*	178	*
398	* This function has been used to deprecate arch_out_of_map -	179	* This function has been used to deprecate arch_out_of_map -
399	* this function also does that check, and since in most cases,	180	* this function also does that check, and since in most cases,
…		…
410	*	191	*
411	* Note this used to be arch_blocked, but with new movement	192	* Note this used to be arch_blocked, but with new movement
412	* code, we need to have actual object to check its move_type	193	* code, we need to have actual object to check its move_type
413	* against the move_block values.	194	* against the move_block values.
414	*/	195	*/
415		196	bool
416	int	197	object::blocked (maptile *m, int x, int y) const
417	ob_blocked (const object *ob, mapstruct *m, sint16 x, sint16 y)
418	{	198	{
419	archetype *tmp;	199	for (archetype *tmp = arch; tmp; tmp = (archetype *)tmp->more)
420	int flag;
421	mapstruct *m1;
422	sint16 sx, sy;
423
424	if (ob == NULL)
425	{
426	flag = get_map_flags (m, &m1, x, y, &sx, &sy);
427	if (flag & P_OUT_OF_MAP)
428	return P_OUT_OF_MAP;
429
430	/* don't have object, so don't know what types would block */
431	return (GET_MAP_MOVE_BLOCK (m1, sx, sy));
432	}	200	{
		201	mapxy pos (m, x + tmp->x, y + tmp->y);
433		202
434	for (tmp = ob->arch; tmp != NULL; tmp = tmp->more)	203	if (!pos.normalise ())
435	{	204	return 1;
436	flag = get_map_flags (m, &m1, x + tmp->clone.x, y + tmp->clone.y, &sx, &sy);
437		205
438	if (flag & P_OUT_OF_MAP)	206	mapspace &ms = *pos;
439	return P_OUT_OF_MAP;	207
440	if (flag & P_IS_ALIVE)	208	if (ms.flags () & P_IS_ALIVE)
441	return P_IS_ALIVE;	209	return 1;
442		210
443	/* find_first_free_spot() calls this function. However, often	211	/* However, often ob doesn't have any move type
444	* ob doesn't have any move type (when used to place exits)	212	* (signifying non-moving objects)
445	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.	213	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.
446	*/	214	*/
447		215	if (!move_type && ms.move_block != MOVE_ALL)
448	if (ob->move_type == 0 && GET_MAP_MOVE_BLOCK (m1, sx, sy) != MOVE_ALL)
449	continue;	216	continue;
450		217
451	/* Note it is intentional that we check ob - the movement type of the	218	/* Note it is intentional that we check ob - the movement type of the
452	* head of the object should correspond for the entire object.	219	* head of the object should correspond for the entire object.
453	*/	220	*/
454	if (OB_TYPE_MOVE_BLOCK (ob, GET_MAP_MOVE_BLOCK (m1, sx, sy)))	221	if (ms.blocks (move_type))
455	return AB_NO_PASS;	222	return 1;
456
457	}	223	}
		224
458	return 0;	225	return 0;
459	}	226	}
460		227
461	/* When the map is loaded, load_object does not actually insert objects	228	/* When the map is loaded, load_object does not actually insert objects
462	* into inventory, but just links them. What this does is go through	229	* into inventory, but just links them. What this does is go through
463	* and insert them properly.	230	* and insert them properly.
464	* The object 'container' is the object that contains the inventory.	231	* The object 'container' is the object that contains the inventory.
465	* This is needed so that we can update the containers weight.	232	* This is needed so that we can update the containers weight.
466	*/	233	*/
467
468	void	234	void
469	fix_container (object *container)	235	fix_container (object *container)
470	{	236	{
471	object *tmp = container->inv, *next;	237	object *tmp = container->inv, *next;
472		238
473	container->inv = NULL;	239	container->inv = 0;
474	while (tmp != NULL)	240	while (tmp)
475	{	241	{
476	next = tmp->below;	242	next = tmp->below;
477	if (tmp->inv)	243	if (tmp->inv)
478	fix_container (tmp);	244	fix_container (tmp);
		245
479	(void) insert_ob_in_ob (tmp, container);	246	insert_ob_in_ob (tmp, container);
480	tmp = next;	247	tmp = next;
481	}	248	}
		249
482	/* sum_weight will go through and calculate what all the containers are	250	// go through and calculate what all the containers are carrying.
483	* carrying.	251	//TODO: remove
484	*/	252	container->update_weight ();
485	sum_weight (container);	253	}
		254
		255	void
		256	maptile::set_object_flag (int flag, int value)
		257	{
		258	if (!spaces)
		259	return;
		260
		261	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		262	for (object *tmp = ms->bot; tmp; tmp = tmp->above)
		263	tmp->flag [flag] = value;
		264	}
		265
		266	void
		267	maptile::post_load_original ()
		268	{
		269	if (!spaces)
		270	return;
		271
		272	set_object_flag (FLAG_OBJ_ORIGINAL);
		273
		274	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		275	for (object *tmp = ms->bot; tmp; tmp = tmp->above)
		276	INVOKE_OBJECT (RESET, tmp);
486	}	277	}
487		278
488	/* link_multipart_objects go through all the objects on the map looking	279	/* link_multipart_objects go through all the objects on the map looking
489	* for objects whose arch says they are multipart yet according to the	280	* for objects whose arch says they are multipart yet according to the
490	* info we have, they only have the head (as would be expected when	281	* info we have, they only have the head (as would be expected when
491	* they are saved). We do have to look for the old maps that did save	282	* they are saved).
492	* the more sections and not re-add sections for them.
493	*/	283	*/
494		284	void
495	static void	285	maptile::link_multipart_objects ()
496	link_multipart_objects (mapstruct *m)
497	{	286	{
498	int x, y;	287	if (!spaces)
499	object *tmp, *op, *last, *above;	288	return;
500	archetype *at;
501		289
502	for (x = 0; x < MAP_WIDTH (m); x++)	290	for (mapspace *ms = spaces + size (); ms-- > spaces; )
503	for (y = 0; y < MAP_HEIGHT (m); y++)	291	{
504	for (tmp = get_map_ob (m, x, y); tmp != NULL; tmp = above)	292	object *op = ms->bot;
		293	while (op)
505	{	294	{
506	above = tmp->above;
507
508	/* already multipart - don't do anything more */	295	/* already multipart - don't do anything more */
509	if (tmp->head || tmp->more)	296	if (op->head_ () == op && !op->more && op->arch->more)
510	continue;
511
512	/* If there is nothing more to this object, this for loop
513	* won't do anything.
514	*/
515	for (at = tmp->arch->more, last = tmp; at != NULL; at = at->more, last = op)
516	{	297	{
517	op = arch_to_object (at);	298	op->remove ();
		299	op->expand_tail ();
518		300
519	/* update x,y coordinates */	301	// FIXME: INS_ON_TOP is just a workaround for the pentagram vs.
520	op->x += tmp->x;	302	// multi-tile monster bug, where INS_ABOVE_FLOOR_ONLY put the monsters
521	op->y += tmp->y;	303	// below the pentagrams... hopefully INS_ON_TOP doesn't break anything
522	op->head = tmp;	304	insert (op, op->x, op->y, 0, INS_NO_MERGE | INS_ON_TOP | INS_NO_WALK_ON);
523	op->map = m;	305
524	last->more = op;	306	op = ms->bot; // we are mutating the mapspace too much with INS_ON_TOP
525	op->name = tmp->name;	307	// so we have to reset the iteration through the mapspace
526	op->title = tmp->title;
527	/* we could link all the parts onto tmp, and then just
528	* call insert_ob_in_map once, but the effect is the same,
529	* as insert_ob_in_map will call itself with each part, and
530	* the coding is simpler to just to it here with each part.
531	*/	308	}
532	insert_ob_in_map (op, op->map, tmp, INS_NO_MERGE | INS_ABOVE_FLOOR_ONLY | INS_NO_WALK_ON);	309	else
533	} /* for at = tmp->arch->more */	310	op = op->above;
534	} /* for objects on this space */	311	}
		312	}
535	}	313	}
536		314
537	/*	315	/*
538	* Loads (ands parses) the objects into a given map from the specified	316	* Loads (ands parses) the objects into a given map from the specified
539	* file pointer.	317	* file pointer.
540	* mapflags is the same as we get with load_original_map
541	*/	318	*/
		319	bool
		320	maptile::_load_objects (object_thawer &f)
		321	{
		322	for (;;)
		323	{
		324	coroapi::cede_to_tick (); // cede once in a while
		325
		326	switch (f.kw)
		327	{
		328	case KW_arch:
		329	if (object *op = object::read (f, this))
		330	{
		331	// TODO: why?
		332	if (op->inv)
		333	op->update_weight ();
		334
		335	if (IN_RANGE_EXC (op->x, 0, width) && IN_RANGE_EXC (op->y, 0, height))
		336	{
		337	// we insert manually because
		338	// a) its way faster
		339	// b) we remove manually, too, and there are good reasons for that
		340	// c) it's correct
		341	mapspace &ms = at (op->x, op->y);
		342
		343	op->flag [FLAG_REMOVED] = false;
		344
		345	op->above = 0;
		346	op->below = ms.top;
		347
		348	*(ms.top ? &ms.top->above : &ms.bot) = op;
		349
		350	ms.top = op;
		351	ms.flags_ = 0;
		352	}
		353	else
		354	{
		355	f.parse_warn (format ("object %s out of range", op->debug_desc ()));
		356	op->destroy ();
		357	}
		358	}
		359
		360	continue;
		361
		362	case KW_EOF:
		363	return true;
		364
		365	default:
		366	if (!f.parse_error ("map file"))
		367	return false;
		368	break;
		369	}
		370
		371	f.next ();
		372	}
		373
		374	return true;
		375	}
		376
542	void	377	void
543	load_objects (mapstruct *m, object_thawer & fp, int mapflags)	378	maptile::activate ()
544	{	379	{
545	int i, j;	380	if (spaces)
546	int unique;	381	for (mapspace *ms = spaces + size (); ms-- > spaces; )
547	object *op, *prev = NULL, *last_more = NULL, *otmp;	382	for (object *op = ms->bot; op; op = op->above)
		383	op->activate_recursive ();
		384	}
548		385
549	op = get_object ();	386	void
550	op->map = m; /* To handle buttons correctly */	387	maptile::deactivate ()
		388	{
		389	if (spaces)
		390	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		391	for (object *op = ms->bot; op; op = op->above)
		392	op->deactivate_recursive ();
		393	}
551		394
552	while ((i = load_object (fp, op, mapflags)))	395	bool
		396	maptile::_save_objects (object_freezer &f, int flags)
		397	{
		398	coroapi::cede_to_tick ();
		399
		400	if (flags & IO_HEADER)
		401	_save_header (f);
		402
		403	if (!spaces)
		404	return false;
		405
		406	for (int i = 0; i < size (); ++i)
553	{	407	{
554	/* if the archetype for the object is null, means that we	408	bool unique = 0;
555	* got an invalid object. Don't do anything with it - the game	409
556	* or editor will not be able to do anything with it either.	410	for (object *op = spaces [i].bot; op; op = op->above)
557	*/
558	if (op->arch == NULL)
559	{	411	{
560	LOG (llevDebug, "Discarding object without arch: %s\n", op->name ? (const char *) op->name : "(null)");	412	unique |= op->flag [FLAG_UNIQUE] && op->flag [FLAG_IS_FLOOR];
		413
		414	if (expect_false (!op->can_map_save ()))
561	continue;	415	continue;
		416
		417	if (expect_false (unique || op->flag [FLAG_UNIQUE]))
		418	{
		419	if (flags & IO_UNIQUES)
		420	op->write (f);
		421	}
		422	else if (expect_true (flags & IO_OBJECTS))
		423	op->write (f);
562	}	424	}
563
564
565	switch (i)
566	{
567	case LL_NORMAL:
568	/* if we are loading an overlay, put the floors on the bottom */
569	if ((QUERY_FLAG (op, FLAG_IS_FLOOR) || QUERY_FLAG (op, FLAG_OVERLAY_FLOOR)) && mapflags & MAP_OVERLAY)
570	insert_ob_in_map (op, m, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ABOVE_FLOOR_ONLY | INS_MAP_LOAD);
571	else
572	insert_ob_in_map (op, m, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ON_TOP | INS_MAP_LOAD);
573
574	if (op->inv)
575	sum_weight (op);
576
577	prev = op, last_more = op;
578	break;
579
580	case LL_MORE:
581	insert_ob_in_map (op, m, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ABOVE_FLOOR_ONLY);
582	op->head = prev, last_more->more = op, last_more = op;
583	break;
584	}
585
586	if (mapflags & MAP_STYLE)
587	remove_from_active_list (op);
588
589	op = get_object ();
590	op->map = m;
591	}
592
593	for (i = 0; i < m->width; i++)
594	{	425	}
595	for (j = 0; j < m->height; j++)
596	{
597	unique = 0;
598	/* check for unique items, or unique squares */
599	for (otmp = get_map_ob (m, i, j); otmp; otmp = otmp->above)
600	{
601	if (QUERY_FLAG (otmp, FLAG_UNIQUE) || QUERY_FLAG (otmp, FLAG_OBJ_SAVE_ON_OVL))
602	unique = 1;
603	if (!(mapflags & (MAP_OVERLAY | MAP_PLAYER_UNIQUE) || unique))
604	SET_FLAG (otmp, FLAG_OBJ_ORIGINAL);
605	}
606	}
607	}
608		426
609	free_object (op);	427	coroapi::cede_to_tick ();
610	link_multipart_objects (m);
611	}
612		428
613	/* This saves all the objects on the map in a non destructive fashion.	429	return true;
614	* Modified by MSW 2001-07-01 to do in a single pass - reduces code,	430	}
615	* and we only save the head of multi part objects - this is needed	431
616	* in order to do map tiling properly.	432	bool
		433	maptile::_save_objects (const char *path, int flags)
		434	{
		435	object_freezer freezer;
		436
		437	if (!_save_objects (freezer, flags))
		438	return false;
		439
		440	return freezer.save (path);
		441	}
		442
		443	maptile::maptile ()
		444	{
		445	in_memory = MAP_SWAPPED;
		446
		447	/* The maps used to pick up default x and y values from the
		448	* map archetype. Mimic that behaviour.
617	*/	449	*/
618	void	450	width = 16;
619	save_objects (mapstruct *m, object_freezer & fp, object_freezer & fp2, int flag)	451	height = 16;
620	{	452	timeout = 300;
621	int i, j = 0, unique = 0;	453	max_nrof = 1000; // 1000 items of anything
622	object *op;	454	max_volume = 2000000; // 2m³
		455	}
623		456
624	/* first pass - save one-part objects */	457	maptile::maptile (int w, int h)
625	for (i = 0; i < MAP_WIDTH (m); i++)	458	{
626	for (j = 0; j < MAP_HEIGHT (m); j++)	459	in_memory = MAP_SWAPPED;
627	{
628	unique = 0;
629	for (op = get_map_ob (m, i, j); op; op = op->above)
630	{
631	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))
632	unique = 1;
633		460
634	if (op->type == PLAYER)	461	width = w;
635	{	462	height = h;
636	LOG (llevDebug, "Player on map that is being saved\n");	463	reset_timeout = 0;
637	continue;	464	timeout = 300;
638	}	465	enter_x = 0;
		466	enter_y = 0;
639		467
640	if (op->head || op->owner)	468	alloc ();
641	continue;
642
643	if (unique || QUERY_FLAG (op, FLAG_UNIQUE))
644	save_object (fp2, op, 3);
645	else if (flag == 0 || (flag == 2 && (!QUERY_FLAG (op, FLAG_OBJ_ORIGINAL) && !QUERY_FLAG (op, FLAG_UNPAID))))
646	save_object (fp, op, 3);
647
648	} /* for this space */
649	} /* for this j */
650	}	469	}
651		470
652	/*	471	/*
653	* Allocates, initialises, and returns a pointer to a mapstruct.
654	* Modified to no longer take a path option which was not being
655	* used anyways. MSW 2001-07-01
656	*/
657
658	mapstruct *
659	get_linked_map (void)
660	{
661	mapstruct *map = new mapstruct;
662	mapstruct *mp;
663
664	for (mp = first_map; mp != NULL && mp->next != NULL; mp = mp->next);
665	if (mp == NULL)
666	first_map = map;
667	else
668	mp->next = map;
669
670	map->in_memory = MAP_SWAPPED;
671	/* The maps used to pick up default x and y values from the
672	* map archetype. Mimic that behaviour.
673	*/
674	MAP_WIDTH (map) = 16;
675	MAP_HEIGHT (map) = 16;
676	MAP_RESET_TIMEOUT (map) = 0;
677	MAP_TIMEOUT (map) = 300;
678	MAP_ENTER_X (map) = 0;
679	MAP_ENTER_Y (map) = 0;
680	/*set part to -1 indicating conversion to weather map not yet done */
681	MAP_WORLDPARTX (map) = -1;
682	MAP_WORLDPARTY (map) = -1;
683	return map;
684	}
685
686	/*
687	* Allocates the arrays contained in a mapstruct.	472	* Allocates the arrays contained in a maptile.
688	* This basically allocates the dynamic array of spaces for the	473	* This basically allocates the dynamic array of spaces for the
689	* map.	474	* map.
690	*/	475	*/
691
692	void	476	void
693	allocate_map (mapstruct *m)	477	maptile::alloc ()
694	{	478	{
695	m->in_memory = MAP_IN_MEMORY;
696	/* Log this condition and free the storage. We could I suppose
697	* realloc, but if the caller is presuming the data will be intact,
698	* that is their poor assumption.
699	*/
700	if (m->spaces)	479	if (spaces)
701	{
702	LOG (llevError, "allocate_map called with already allocated map (%s)\n", m->path);
703	free (m->spaces);
704	}
705
706	m->spaces = (MapSpace *) calloc (1, MAP_WIDTH (m) * MAP_HEIGHT (m) * sizeof (MapSpace));
707
708	if (m->spaces == NULL)
709	fatal (OUT_OF_MEMORY);
710	}
711
712	/* Create and returns a map of the specific size. Used
713	* in random map code and the editor.
714	*/
715	mapstruct *
716	get_empty_map (int sizex, int sizey)
717	{
718	mapstruct *m = get_linked_map ();
719
720	m->width = sizex;
721	m->height = sizey;
722	m->in_memory = MAP_SWAPPED;
723	allocate_map (m);
724	return m;	480	return;
		481
		482	spaces = salloc0<mapspace> (size ());
725	}	483	}
726		484
727	/* Takes a string from a map definition and outputs a pointer to the array of shopitems	485	/* Takes a string from a map definition and outputs a pointer to the array of shopitems
728	* corresponding to that string. Memory is allocated for this, it must be freed	486	* corresponding to that string. Memory is allocated for this, it must be freed
729	* at a later date.	487	* at a later date.
730	* Called by parse_map_headers below.	488	* Called by parse_map_headers below.
731	*/	489	*/
732
733	static shopitems *	490	static shopitems *
734	parse_shop_string (const char *input_string)	491	parse_shop_string (const char *input_string)
735	{	492	{
736	char *shop_string, *p, *q, *next_semicolon, *next_colon;	493	char *shop_string, *p, *q, *next_semicolon, *next_colon;
737	shopitems *items = NULL;	494	shopitems *items = NULL;
738	int i = 0, number_of_entries = 0;	495	int i = 0, number_of_entries = 0;
739	const typedata *current_type;	496	const typedata *current_type;
740		497
741	shop_string = strdup_local (input_string);	498	shop_string = strdup (input_string);
742	p = shop_string;	499	p = shop_string;
743	/* first we'll count the entries, we'll need that for allocating the array shortly */	500	/* first we'll count the entries, we'll need that for allocating the array shortly */
744	while (p)	501	while (p)
745	{	502	{
746	p = strchr (p, ';');	503	p = strchr (p, ';');
747	number_of_entries++;	504	number_of_entries++;
748	if (p)	505	if (p)
749	p++;	506	p++;
750	}	507	}
		508
751	p = shop_string;	509	p = shop_string;
752	strip_endline (p);	510	strip_endline (p);
753	items = new shopitems[number_of_entries + 1];	511	items = new shopitems[number_of_entries + 1];
754	for (i = 0; i < number_of_entries; i++)	512	for (i = 0; i < number_of_entries; i++)
755	{	513	{
756	if (!p)	514	if (!p)
757	{	515	{
758	LOG (llevError, "parse_shop_string: I seem to have run out of string, that shouldn't happen.\n");	516	LOG (llevError, "parse_shop_string: I seem to have run out of string, that shouldn't happen.\n");
759	break;	517	break;
760	}	518	}
		519
761	next_semicolon = strchr (p, ';');	520	next_semicolon = strchr (p, ';');
762	next_colon = strchr (p, ':');	521	next_colon = strchr (p, ':');
763	/* if there is a stregth specified, figure out what it is, we'll need it soon. */	522	/* if there is a stregth specified, figure out what it is, we'll need it soon. */
764	if (next_colon && (!next_semicolon || next_colon < next_semicolon))	523	if (next_colon && (!next_semicolon || next_colon < next_semicolon))
765	items[i].strength = atoi (strchr (p, ':') + 1);	524	items[i].strength = atoi (strchr (p, ':') + 1);
…		…
792	* the next entry while we're at it, better print a warning	551	* the next entry while we're at it, better print a warning
793	*/	552	*/
794	LOG (llevError, "invalid type %s defined in shopitems in string %s\n", p, input_string);	553	LOG (llevError, "invalid type %s defined in shopitems in string %s\n", p, input_string);
795	}	554	}
796	}	555	}
		556
797	items[i].index = number_of_entries;	557	items[i].index = number_of_entries;
798	if (next_semicolon)	558	if (next_semicolon)
799	p = ++next_semicolon;	559	p = ++next_semicolon;
800	else	560	else
801	p = NULL;	561	p = NULL;
802	}	562	}
		563
803	free (shop_string);	564	free (shop_string);
804	return items;	565	return items;
805	}	566	}
806		567
807	/* opposite of parse string, this puts the string that was originally fed in to	568	/* opposite of parse string, this puts the string that was originally fed in to
808	* the map (or something equivilent) into output_string. */	569	* the map (or something equivilent) into output_string. */
809	static void	570	static void
810	print_shop_string (mapstruct *m, char *output_string)	571	print_shop_string (maptile *m, char *output_string)
811	{	572	{
812	int i;	573	int i;
813	char tmp[MAX_BUF];	574	char tmp[MAX_BUF];
814		575
815	strcpy (output_string, "");	576	strcpy (output_string, "");
816	for (i = 0; i < m->shopitems[0].index; i++)	577	for (i = 0; i < m->shopitems[0].index; i++)
817	{	578	{
818	if (m->shopitems[i].typenum)	579	if (m->shopitems[i].typenum)
819	{	580	{
820	if (m->shopitems[i].strength)	581	if (m->shopitems[i].strength)
821	{
822	sprintf (tmp, "%s:%d;", m->shopitems[i].name, m->shopitems[i].strength);	582	sprintf (tmp, "%s:%d;", m->shopitems[i].name, m->shopitems[i].strength);
823	}
824	else	583	else
825	sprintf (tmp, "%s;", m->shopitems[i].name);	584	sprintf (tmp, "%s;", m->shopitems[i].name);
826	}	585	}
827	else	586	else
828	{	587	{
829	if (m->shopitems[i].strength)	588	if (m->shopitems[i].strength)
830	{
831	sprintf (tmp, "*:%d;", m->shopitems[i].strength);	589	sprintf (tmp, "*:%d;", m->shopitems[i].strength);
832	}
833	else	590	else
834	sprintf (tmp, "*");	591	sprintf (tmp, "*");
835	}	592	}
		593
836	strcat (output_string, tmp);	594	strcat (output_string, tmp);
837	}	595	}
838	}	596	}
839		597
840	/* This loads the header information of the map. The header	598	/* This loads the header information of the map. The header
…		…
845	* put all the stuff in the map object so that names actually make	603	* put all the stuff in the map object so that names actually make
846	* sense.	604	* sense.
847	* This could be done in lex (like the object loader), but I think	605	* This could be done in lex (like the object loader), but I think
848	* currently, there are few enough fields this is not a big deal.	606	* currently, there are few enough fields this is not a big deal.
849	* MSW 2001-07-01	607	* MSW 2001-07-01
850	* return 0 on success, 1 on failure.
851	*/	608	*/
852		609	bool
853	static int	610	maptile::_load_header (object_thawer &thawer)
854	load_map_header (object_thawer & fp, mapstruct *m)
855	{	611	{
856	char buf[HUGE_BUF], msgbuf[HUGE_BUF], maplorebuf[HUGE_BUF], *key = NULL, *value, *end;	612	for (;;)
857	int msgpos = 0;
858	int maplorepos = 0;
859
860	while (fgets (buf, HUGE_BUF - 1, fp) != NULL)
861	{	613	{
862	buf[HUGE_BUF - 1] = 0;	614	switch (thawer.kw)
863	key = buf;
864	while (isspace (*key))
865	key++;
866	if (*key == 0)
867	continue; /* empty line */
868	value = strchr (key, ' ');
869	if (!value)
870	{	615	{
871	end = strchr (key, '\n');	616	case KW_msg:
872	if (end != NULL)	617	thawer.get_ml (KW_endmsg, msg);
873	{	618	break;
874	*end = 0;	619
		620	case KW_lore: // CF+ extension
		621	thawer.get_ml (KW_endlore, maplore);
875	}	622	break;
		623
		624	case KW_maplore:
		625	thawer.get_ml (KW_endmaplore, maplore);
		626	break;
		627
		628	case KW_arch:
		629	if (strcmp (thawer.get_str (), "map"))
		630	LOG (llevError, "%s: loading map and got a non 'arch map' line (arch %s), skipping.\n", &path, thawer.get_str ());
		631	break;
		632
		633	case KW_oid:
		634	thawer.get (this, thawer.get_sint32 ());
		635	break;
		636
		637	case KW_file_format_version: break; // nop
		638
		639	case KW_name: thawer.get (name); break;
		640	case KW_attach: thawer.get (attach); break;
		641	case KW_reset_time: thawer.get (reset_time); break;
		642	case KW_shopgreed: thawer.get (shopgreed); break;
		643	case KW_shopmin: thawer.get (shopmin); break;
		644	case KW_shopmax: thawer.get (shopmax); break;
		645	case KW_shoprace: thawer.get (shoprace); break;
		646	case KW_outdoor: thawer.get (outdoor); break;
		647	case KW_temp: thawer.get (temp); break;
		648	case KW_pressure: thawer.get (pressure); break;
		649	case KW_humid: thawer.get (humid); break;
		650	case KW_windspeed: thawer.get (windspeed); break;
		651	case KW_winddir: thawer.get (winddir); break;
		652	case KW_sky: thawer.get (sky); break;
		653
		654	case KW_per_player: thawer.get (per_player); break;
		655	case KW_per_party: thawer.get (per_party); break;
		656	case KW_no_reset: thawer.get (no_reset); break;
		657	case KW_no_drop: thawer.get (no_drop); break;
		658
		659	case KW_region: default_region = region::find (thawer.get_str ()); break;
		660	case KW_shopitems: shopitems = parse_shop_string (thawer.get_str ()); break;
		661
		662	// old names new names
		663	case KW_hp: case KW_enter_x: thawer.get (enter_x); break;
		664	case KW_sp: case KW_enter_y: thawer.get (enter_y); break;
		665	case KW_x: case KW_width: thawer.get (width); break;
		666	case KW_y: case KW_height: thawer.get (height); break;
		667	case KW_weight: case KW_reset_timeout: thawer.get (reset_timeout); break;
		668	case KW_value: case KW_swap_time: thawer.get (timeout); break;
		669	case KW_level: case KW_difficulty: thawer.get (difficulty); difficulty = clamp (difficulty, 1, settings.max_level); break;
		670	case KW_invisible: case KW_darkness: thawer.get (darkness); break;
		671	case KW_stand_still: case KW_fixed_resettime: thawer.get (fixed_resettime); break;
		672
		673	case KW_tile_path_1: thawer.get (tile_path [0]); break;
		674	case KW_tile_path_2: thawer.get (tile_path [1]); break;
		675	case KW_tile_path_3: thawer.get (tile_path [2]); break;
		676	case KW_tile_path_4: thawer.get (tile_path [3]); break;
		677
		678	case KW_ERROR:
		679	set_key_text (thawer.kw_str, thawer.value);
		680	break;
		681
		682	case KW_end:
		683	thawer.next ();
		684	return true;
		685
		686	default:
		687	if (!thawer.parse_error ("map", 0))
		688	return false;
		689	break;
876	}	690	}
877	else
878	{
879	*value = 0;
880	value++;
881	end = strchr (value, '\n');
882	while (isspace (*value))
883	{
884	value++;
885	if (*value == '\0' || value == end)
886	{
887	/* Nothing but spaces. */
888	value = NULL;
889	break;
890	}
891	}
892	}
893		691
894	if (!end)	692	thawer.next ();
895	{
896	LOG (llevError, "Error loading map header - did not find a newline - perhaps file is truncated? Buf=%s\n", buf);
897	return 1;
898	}
899
900	/* key is the field name, value is what it should be set
901	* to. We've already done the work to null terminate key,
902	* and strip off any leading spaces for both of these.
903	* We have not touched the newline at the end of the line -
904	* these are needed for some values. the end pointer
905	* points to the first of the newlines.
906	* value could be NULL! It would be easy enough to just point
907	* this to "" to prevent cores, but that would let more errors slide
908	* through.
909	*
910	* First check for entries that do not use the value parameter, then
911	* validate that value is given and check for the remaining entries
912	* that use the parameter.
913	*/
914
915	if (!strcmp (key, "msg"))
916	{
917	while (fgets (buf, HUGE_BUF - 1, fp) != NULL)
918	{
919	if (!strcmp (buf, "endmsg\n"))
920	break;
921	else
922	{
923	/* slightly more efficient than strcat */
924	strcpy (msgbuf + msgpos, buf);
925	msgpos += strlen (buf);
926	}
927	}
928	/* There are lots of maps that have empty messages (eg, msg/endmsg
929	* with nothing between). There is no reason in those cases to
930	* keep the empty message. Also, msgbuf contains garbage data
931	* when msgpos is zero, so copying it results in crashes
932	*/
933	if (msgpos != 0)
934	m->msg = strdup_local (msgbuf);
935	}
936	else if (!strcmp (key, "maplore"))
937	{
938	while (fgets (buf, HUGE_BUF - 1, fp) != NULL)
939	{
940	if (!strcmp (buf, "endmaplore\n"))
941	break;
942	else
943	{
944	/* slightly more efficient than strcat */
945	strcpy (maplorebuf + maplorepos, buf);
946	maplorepos += strlen (buf);
947	}
948	}
949	if (maplorepos != 0)
950	m->maplore = strdup_local (maplorebuf);
951	}
952	else if (!strcmp (key, "end"))
953	{
954	break;
955	}
956	else if (value == NULL)
957	{
958	LOG (llevError, "Got '%s' line without parameter in map header\n", key);
959	}
960	else if (!strcmp (key, "arch"))
961	{
962	/* This is an oddity, but not something we care about much. */
963	if (strcmp (value, "map\n"))
964	LOG (llevError, "loading map and got a non 'arch map' line(%s %s)?\n", key, value);
965	}
966	else if (!strcmp (key, "name"))
967	{
968	*end = 0;
969	m->name = strdup_local (value);
970	}
971	/* first strcmp value on these are old names supported
972	* for compatibility reasons. The new values (second) are
973	* what really should be used.
974	*/
975	else if (!strcmp (key, "oid"))
976	{
977	fp.get (m, atoi (value));
978	}
979	else if (!strcmp (key, "attach"))
980	{
981	m->attach = value;
982	}
983	else if (!strcmp (key, "hp") || !strcmp (key, "enter_x"))
984	{
985	m->enter_x = atoi (value);
986	}
987	else if (!strcmp (key, "sp") || !strcmp (key, "enter_y"))
988	{
989	m->enter_y = atoi (value);
990	}
991	else if (!strcmp (key, "x") || !strcmp (key, "width"))
992	{
993	m->width = atoi (value);
994	}
995	else if (!strcmp (key, "y") || !strcmp (key, "height"))
996	{
997	m->height = atoi (value);
998	}
999	else if (!strcmp (key, "weight") || !strcmp (key, "reset_timeout"))
1000	{
1001	m->reset_timeout = atoi (value);
1002	}
1003	else if (!strcmp (key, "value") || !strcmp (key, "swap_time"))
1004	{
1005	m->timeout = atoi (value);
1006	}
1007	else if (!strcmp (key, "level") || !strcmp (key, "difficulty"))
1008	{
1009	m->difficulty = atoi (value);
1010	}
1011	else if (!strcmp (key, "invisible") || !strcmp (key, "darkness"))
1012	{
1013	m->darkness = atoi (value);
1014	}
1015	else if (!strcmp (key, "stand_still") || !strcmp (key, "fixed_resettime"))
1016	{
1017	m->fixed_resettime = atoi (value);
1018	}
1019	else if (!strcmp (key, "unique"))
1020	{
1021	m->unique = atoi (value);
1022	}
1023	else if (!strcmp (key, "template"))
1024	{
1025	m->templatemap = atoi (value);
1026	}
1027	else if (!strcmp (key, "region"))
1028	{
1029	m->region = get_region_by_name (value);
1030	}
1031	else if (!strcmp (key, "shopitems"))
1032	{
1033	*end = 0;
1034	m->shopitems = parse_shop_string (value);
1035	}
1036	else if (!strcmp (key, "shopgreed"))
1037	{
1038	m->shopgreed = atof (value);
1039	}
1040	else if (!strcmp (key, "shopmin"))
1041	{
1042	m->shopmin = atol (value);
1043	}
1044	else if (!strcmp (key, "shopmax"))
1045	{
1046	m->shopmax = atol (value);
1047	}
1048	else if (!strcmp (key, "shoprace"))
1049	{
1050	*end = 0;
1051	m->shoprace = strdup_local (value);
1052	}
1053	else if (!strcmp (key, "outdoor"))
1054	{
1055	m->outdoor = atoi (value);
1056	}
1057	else if (!strcmp (key, "temp"))
1058	{
1059	m->temp = atoi (value);
1060	}
1061	else if (!strcmp (key, "pressure"))
1062	{
1063	m->pressure = atoi (value);
1064	}
1065	else if (!strcmp (key, "humid"))
1066	{
1067	m->humid = atoi (value);
1068	}
1069	else if (!strcmp (key, "windspeed"))
1070	{
1071	m->windspeed = atoi (value);
1072	}
1073	else if (!strcmp (key, "winddir"))
1074	{
1075	m->winddir = atoi (value);
1076	}
1077	else if (!strcmp (key, "sky"))
1078	{
1079	m->sky = atoi (value);
1080	}
1081	else if (!strcmp (key, "nosmooth"))
1082	{
1083	m->nosmooth = atoi (value);
1084	}
1085	else if (!strncmp (key, "tile_path_", 10))
1086	{
1087	int tile = atoi (key + 10);
1088
1089	if (tile < 1 || tile > 4)
1090	{
1091	LOG (llevError, "load_map_header: tile location %d out of bounds (%s)\n", tile, m->path);
1092	}
1093	else
1094	{
1095	char *path;
1096
1097	*end = 0;
1098
1099	if (m->tile_path[tile - 1])
1100	{
1101	LOG (llevError, "load_map_header: tile location %d duplicated (%s)\n", tile, m->path);
1102	free (m->tile_path[tile - 1]);
1103	m->tile_path[tile - 1] = NULL;
1104	}
1105
1106	if (check_path (value, 1) != -1)
1107	{
1108	/* The unadorned path works. */
1109	path = value;
1110	}
1111	else
1112	{
1113	/* Try again; it could be a relative exit. */
1114
1115	path = path_combine_and_normalize (m->path, value);
1116
1117	if (check_path (path, 1) == -1)
1118	{
1119	LOG (llevError, "get_map_header: Bad tile path %s %s\n", m->path, value);
1120	path = NULL;
1121	}
1122	}
1123
1124	if (editor)
1125	{
1126	/* Use the value as in the file. */
1127	m->tile_path[tile - 1] = strdup_local (value);
1128	}
1129	else if (path != NULL)
1130	{
1131	/* Use the normalized value. */
1132	m->tile_path[tile - 1] = strdup_local (path);
1133	}
1134	} /* end if tile direction (in)valid */
1135	}
1136	else
1137	{
1138	LOG (llevError, "Got unknown value in map header: %s %s\n", key, value);
1139	}
1140	}
1141	if (!key || strcmp (key, "end"))
1142	{	693	}
1143	LOG (llevError, "Got premature eof on map header!\n");
1144	return 1;
1145	}
1146	return 0;
1147	}
1148		694
1149	/*	695	abort ();
1150	* Opens the file "filename" and reads information about the map
1151	* from the given file, and stores it in a newly allocated
1152	* mapstruct. A pointer to this structure is returned, or NULL on failure.
1153	* flags correspond to those in map.h. Main ones used are
1154	* MAP_PLAYER_UNIQUE, in which case we don't do any name changes, and
1155	* MAP_BLOCK, in which case we block on this load. This happens in all
1156	* cases, no matter if this flag is set or not.
1157	* MAP_STYLE: style map - don't add active objects, don't add to server
1158	* managed map list.
1159	*/
1160
1161	mapstruct *
1162	load_original_map (const char *filename, int flags)
1163	{
1164	mapstruct *m;
1165	char pathname[MAX_BUF];
1166
1167	if (flags & MAP_PLAYER_UNIQUE)
1168	strcpy (pathname, filename);
1169	else if (flags & MAP_OVERLAY)
1170	strcpy (pathname, create_overlay_pathname (filename));
1171	else
1172	strcpy (pathname, create_pathname (filename));
1173
1174	LOG (llevDebug, "load_original_map(%x): %s (%s)\n", flags, filename, pathname);
1175
1176	object_thawer thawer (pathname);
1177
1178	if (!thawer)
1179	return 0;
1180
1181	m = get_linked_map ();
1182
1183	strcpy (m->path, filename);
1184	if (load_map_header (thawer, m))
1185	{
1186	LOG (llevError, "Error loading map header for %s, flags=%d\n", filename, flags);
1187	delete_map (m);
1188	return NULL;
1189	}
1190
1191	allocate_map (m);
1192
1193	m->in_memory = MAP_LOADING;
1194	load_objects (m, thawer, flags & (MAP_BLOCK | MAP_STYLE));
1195
1196	m->in_memory = MAP_IN_MEMORY;
1197	if (!MAP_DIFFICULTY (m))
1198	MAP_DIFFICULTY (m) = calculate_difficulty (m);
1199	set_map_reset_time (m);
1200	m->instantiate ();
1201	return (m);
1202	}
1203
1204	/*
1205	* Loads a map, which has been loaded earlier, from file.
1206	* Return the map object we load into (this can change from the passed
1207	* option if we can't find the original map)
1208	*/
1209
1210	static mapstruct *
1211	load_temporary_map (mapstruct *m)
1212	{
1213	char buf[MAX_BUF];
1214
1215	if (!m->tmpname)
1216	{
1217	LOG (llevError, "No temporary filename for map %s\n", m->path);
1218	strcpy (buf, m->path);
1219	delete_map (m);
1220	m = load_original_map (buf, 0);
1221	if (m == NULL)
1222	return NULL;
1223	fix_auto_apply (m); /* Chests which open as default */
1224	return m;
1225	}
1226
1227	object_thawer thawer (m->tmpname);
1228
1229	if (!thawer)
1230	{
1231	strcpy (buf, m->path);
1232	delete_map (m);
1233	m = load_original_map (buf, 0);
1234	if (!m)
1235	return NULL;
1236	fix_auto_apply (m); /* Chests which open as default */
1237	return m;
1238	}
1239
1240	if (load_map_header (thawer, m))
1241	{
1242	LOG (llevError, "Error loading map header for %s (%s)\n", m->path, m->tmpname);
1243	delete_map (m);
1244	m = load_original_map (m->path, 0);
1245	return NULL;
1246	}
1247	allocate_map (m);
1248
1249	m->in_memory = MAP_LOADING;
1250	load_objects (m, thawer, 0);
1251
1252	m->in_memory = MAP_IN_MEMORY;
1253	INVOKE_MAP (SWAPIN, m);
1254	return m;
1255	}
1256
1257	/*
1258	* Loads a map, which has been loaded earlier, from file.
1259	* Return the map object we load into (this can change from the passed
1260	* option if we can't find the original map)
1261	*/
1262
1263	mapstruct *
1264	load_overlay_map (const char *filename, mapstruct *m)
1265	{
1266	char pathname[MAX_BUF];
1267
1268	strcpy (pathname, create_overlay_pathname (filename));
1269
1270	object_thawer thawer (pathname);
1271
1272	if (!thawer)
1273	return m;
1274
1275	if (load_map_header (thawer, m))
1276	{
1277	LOG (llevError, "Error loading map header for overlay %s (%s)\n", m->path, pathname);
1278	delete_map (m);
1279	m = load_original_map (m->path, 0);
1280	return NULL;
1281	}
1282	/*allocate_map(m); */
1283
1284	m->in_memory = MAP_LOADING;
1285	load_objects (m, thawer, MAP_OVERLAY);
1286
1287	m->in_memory = MAP_IN_MEMORY;
1288	return m;
1289	}	696	}
1290		697
1291	/******************************************************************************	698	/******************************************************************************
1292	* This is the start of unique map handling code	699	* This is the start of unique map handling code
1293	*****************************************************************************/	700	*****************************************************************************/
1294		701
1295	/* This goes through map 'm' and removed any unique items on the map. */	702	/* This goes through the maptile and removed any unique items on the map. */
1296	static void	703	void
1297	delete_unique_items (mapstruct *m)	704	maptile::clear_unique_items ()
1298	{	705	{
1299	int i, j, unique;	706	for (int i = 0; i < size (); ++i)
1300	object *op, *next;
1301
1302	for (i = 0; i < MAP_WIDTH (m); i++)
1303	for (j = 0; j < MAP_HEIGHT (m); j++)
1304	{	707	{
1305	unique = 0;	708	int unique = 0;
1306	for (op = get_map_ob (m, i, j); op; op = next)	709	for (object *op = spaces [i].bot; op; )
		710	{
		711	object *above = op->above;
		712
		713	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))
		714	unique = 1;
		715
		716	if (op->head_ () == op && (QUERY_FLAG (op, FLAG_UNIQUE) || unique))
		717	op->destroy ();
		718
		719	op = above;
		720	}
		721	}
		722	}
		723
		724	bool
		725	maptile::_save_header (object_freezer &freezer)
		726	{
		727	#define MAP_OUT(k) freezer.put (KW_ ## k, k)
		728	#define MAP_OUT2(k,v) freezer.put (KW_ ## k, v)
		729
		730	MAP_OUT2 (arch, "map");
		731
		732	if (name) MAP_OUT (name);
		733	MAP_OUT (swap_time);
		734	MAP_OUT (reset_time);
		735	MAP_OUT (reset_timeout);
		736	MAP_OUT (fixed_resettime);
		737	MAP_OUT (no_reset);
		738	MAP_OUT (no_drop);
		739	MAP_OUT (difficulty);
		740
		741	if (default_region) MAP_OUT2 (region, default_region->name);
		742
		743	if (shopitems)
		744	{
		745	char shop[MAX_BUF];
		746	print_shop_string (this, shop);
		747	MAP_OUT2 (shopitems, shop);
		748	}
		749
		750	MAP_OUT (shopgreed);
		751	MAP_OUT (shopmin);
		752	MAP_OUT (shopmax);
		753	if (shoprace) MAP_OUT (shoprace);
		754	MAP_OUT (darkness);
		755	MAP_OUT (width);
		756	MAP_OUT (height);
		757	MAP_OUT (enter_x);
		758	MAP_OUT (enter_y);
		759
		760	if (msg) freezer.put (KW_msg , KW_endmsg , msg);
		761	if (maplore) freezer.put (KW_maplore, KW_endmaplore, maplore);
		762
		763	MAP_OUT (outdoor);
		764	MAP_OUT (temp);
		765	MAP_OUT (pressure);
		766	MAP_OUT (humid);
		767	MAP_OUT (windspeed);
		768	MAP_OUT (winddir);
		769	MAP_OUT (sky);
		770
		771	MAP_OUT (per_player);
		772	MAP_OUT (per_party);
		773
		774	if (tile_path [0]) MAP_OUT2 (tile_path_1, tile_path [0]);
		775	if (tile_path [1]) MAP_OUT2 (tile_path_2, tile_path [1]);
		776	if (tile_path [2]) MAP_OUT2 (tile_path_3, tile_path [2]);
		777	if (tile_path [3]) MAP_OUT2 (tile_path_4, tile_path [3]);
		778
		779	freezer.put (this);
		780	freezer.put (KW_end);
		781
		782	return true;
		783	}
		784
		785	bool
		786	maptile::_save_header (const char *path)
		787	{
		788	object_freezer freezer;
		789
		790	if (!_save_header (freezer))
		791	return false;
		792
		793	return freezer.save (path);
		794	}
		795
		796	/*
		797	* Remove and free all objects in the given map.
		798	*/
		799	void
		800	maptile::clear ()
		801	{
		802	if (spaces)
		803	{
		804	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		805	while (object *op = ms->bot)
1307	{	806	{
		807	// manually remove, as to not trigger anything
1308	next = op->above;	808	if (ms->bot = op->above)
1309	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))	809	ms->bot->below = 0;
1310	unique = 1;	810
1311	if (op->head == NULL && (QUERY_FLAG (op, FLAG_UNIQUE) || unique))	811	op->flag [FLAG_REMOVED] = true;
		812
		813	object *head = op->head_ ();
		814	if (op == head)
		815	op->destroy ();
		816	else if (head->map != op->map)
1312	{	817	{
1313	clean_object (op);	818	LOG (llevDebug, "bad luck for object crossing map borders: %s", head->debug_desc ());
1314	if (QUERY_FLAG (op, FLAG_IS_LINKED))	819	head->destroy ();
1315	remove_button_link (op);
1316	remove_ob (op);
1317	free_object (op);
1318	}	820	}
1319	}	821	}
		822
		823	sfree0 (spaces, size ());
1320	}	824	}
1321	}
1322		825
		826	if (buttons)
		827	free_objectlinkpt (buttons), buttons = 0;
1323		828
1324	/*	829	sfree0 (regions, size ());
1325	* Loads unique objects from file(s) into the map which is in memory	830	delete [] regionmap; regionmap = 0;
1326	* m is the map to load unique items into.
1327	*/
1328	static void
1329	load_unique_objects (mapstruct *m)
1330	{
1331	int count;
1332	char firstname[MAX_BUF];
1333
1334	for (count = 0; count < 10; count++)
1335	{
1336	sprintf (firstname, "%s.v%02d", create_items_path (m->path), count);
1337	if (!access (firstname, R_OK))
1338	break;
1339	}
1340	/* If we get here, we did not find any map */
1341	if (count == 10)
1342	return;
1343
1344	object_thawer thawer (firstname);
1345
1346	if (!thawer)
1347	return;
1348
1349	m->in_memory = MAP_LOADING;
1350	if (m->tmpname == NULL) /* if we have loaded unique items from */
1351	delete_unique_items (m); /* original map before, don't duplicate them */
1352	load_objects (m, thawer, 0);
1353
1354	m->in_memory = MAP_IN_MEMORY;
1355	}	831	}
1356
1357
1358	/*
1359	* Saves a map to file. If flag is set, it is saved into the same
1360	* file it was (originally) loaded from. Otherwise a temporary
1361	* filename will be genarated, and the file will be stored there.
1362	* The temporary filename will be stored in the mapstructure.
1363	* If the map is unique, we also save to the filename in the map
1364	* (this should have been updated when first loaded)
1365	*/
1366
1367	int
1368	new_save_map (mapstruct *m, int flag)
1369	{
1370	char filename[MAX_BUF], buf[MAX_BUF], shop[MAX_BUF];
1371	int i;
1372
1373	if (flag && !*m->path)
1374	{
1375	LOG (llevError, "Tried to save map without path.\n");
1376	return -1;
1377	}
1378
1379	if (flag || (m->unique) || (m->templatemap))
1380	{
1381	if (!m->unique && !m->templatemap)
1382	{ /* flag is set */
1383	if (flag == 2)
1384	strcpy (filename, create_overlay_pathname (m->path));
1385	else
1386	strcpy (filename, create_pathname (m->path));
1387	}
1388	else
1389	strcpy (filename, m->path);
1390
1391	make_path_to_file (filename);
1392	}
1393	else
1394	{
1395	if (!m->tmpname)
1396	m->tmpname = tempnam_local (settings.tmpdir, NULL);
1397
1398	strcpy (filename, m->tmpname);
1399	}
1400
1401	LOG (llevDebug, "Saving map %s to %s\n", m->path, filename);
1402	m->in_memory = MAP_SAVING;
1403
1404	object_freezer freezer;
1405
1406	/* legacy */
1407	fprintf (freezer, "arch map\n");
1408	if (m->name)
1409	fprintf (freezer, "name %s\n", m->name);
1410	if (!flag)
1411	fprintf (freezer, "swap_time %d\n", m->swap_time);
1412	if (m->reset_timeout)
1413	fprintf (freezer, "reset_timeout %d\n", m->reset_timeout);
1414	if (m->fixed_resettime)
1415	fprintf (freezer, "fixed_resettime %d\n", m->fixed_resettime);
1416	/* we unfortunately have no idea if this is a value the creator set
1417	* or a difficulty value we generated when the map was first loaded
1418	*/
1419	if (m->difficulty)
1420	fprintf (freezer, "difficulty %d\n", m->difficulty);
1421	if (m->region)
1422	fprintf (freezer, "region %s\n", m->region->name);
1423	if (m->shopitems)
1424	{
1425	print_shop_string (m, shop);
1426	fprintf (freezer, "shopitems %s\n", shop);
1427	}
1428	if (m->shopgreed)
1429	fprintf (freezer, "shopgreed %f\n", m->shopgreed);
1430	#ifndef WIN32
1431	if (m->shopmin)
1432	fprintf (freezer, "shopmin %llu\n", m->shopmin);
1433	if (m->shopmax)
1434	fprintf (freezer, "shopmax %llu\n", m->shopmax);
1435	#else
1436	if (m->shopmin)
1437	fprintf (freezer, "shopmin %I64u\n", m->shopmin);
1438	if (m->shopmax)
1439	fprintf (freezer, "shopmax %I64u\n", m->shopmax);
1440	#endif
1441	if (m->shoprace)
1442	fprintf (freezer, "shoprace %s\n", m->shoprace);
1443	if (m->darkness)
1444	fprintf (freezer, "darkness %d\n", m->darkness);
1445	if (m->width)
1446	fprintf (freezer, "width %d\n", m->width);
1447	if (m->height)
1448	fprintf (freezer, "height %d\n", m->height);
1449	if (m->enter_x)
1450	fprintf (freezer, "enter_x %d\n", m->enter_x);
1451	if (m->enter_y)
1452	fprintf (freezer, "enter_y %d\n", m->enter_y);
1453	if (m->msg)
1454	fprintf (freezer, "msg\n%sendmsg\n", m->msg);
1455	if (m->maplore)
1456	fprintf (freezer, "maplore\n%sendmaplore\n", m->maplore);
1457	if (m->unique)
1458	fprintf (freezer, "unique %d\n", m->unique);
1459	if (m->templatemap)
1460	fprintf (freezer, "template %d\n", m->templatemap);
1461	if (m->outdoor)
1462	fprintf (freezer, "outdoor %d\n", m->outdoor);
1463	if (m->temp)
1464	fprintf (freezer, "temp %d\n", m->temp);
1465	if (m->pressure)
1466	fprintf (freezer, "pressure %d\n", m->pressure);
1467	if (m->humid)
1468	fprintf (freezer, "humid %d\n", m->humid);
1469	if (m->windspeed)
1470	fprintf (freezer, "windspeed %d\n", m->windspeed);
1471	if (m->winddir)
1472	fprintf (freezer, "winddir %d\n", m->winddir);
1473	if (m->sky)
1474	fprintf (freezer, "sky %d\n", m->sky);
1475	if (m->nosmooth)
1476	fprintf (freezer, "nosmooth %d\n", m->nosmooth);
1477
1478	/* Save any tiling information, except on overlays */
1479	if (flag != 2)
1480	for (i = 0; i < 4; i++)
1481	if (m->tile_path[i])
1482	fprintf (freezer, "tile_path_%d %s\n", i + 1, m->tile_path[i]);
1483
1484	freezer.put (m);
1485	fprintf (freezer, "end\n");
1486
1487	/* In the game save unique items in the different file, but
1488	* in the editor save them to the normal map file.
1489	* If unique map, save files in the proper destination (set by
1490	* player)
1491	*/
1492	if ((flag == 0 || flag == 2) && !m->unique && !m->templatemap)
1493	{
1494	object_freezer unique;
1495
1496	if (flag == 2)
1497	save_objects (m, freezer, unique, 2);
1498	else
1499	save_objects (m, freezer, unique, 0);
1500
1501	sprintf (buf, "%s.v00", create_items_path (m->path));
1502
1503	unique.save (buf);
1504	}
1505	else
1506	{ /* save same file when not playing, like in editor */
1507	save_objects (m, freezer, freezer, 0);
1508	}
1509
1510	freezer.save (filename);
1511
1512	return 0;
1513	}
1514
1515
1516	/*
1517	* Remove and free all objects in the inventory of the given object.
1518	* object.c ?
1519	*/
1520		832
1521	void	833	void
1522	clean_object (object *op)	834	maptile::clear_header ()
1523	{	835	{
1524	object *tmp, *next;	836	name = 0;
		837	msg = 0;
		838	maplore = 0;
		839	shoprace = 0;
		840	delete [] shopitems, shopitems = 0;
1525		841
1526	for (tmp = op->inv; tmp; tmp = next)	842	for (int i = 0; i < 4; i++)
1527	{	843	tile_path [i] = 0;
1528	next = tmp->below;
1529	clean_object (tmp);
1530	if (QUERY_FLAG (tmp, FLAG_IS_LINKED))
1531	remove_button_link (tmp);
1532	remove_ob (tmp);
1533	free_object (tmp);
1534	}
1535	}	844	}
1536		845
1537	/*	846	maptile::~maptile ()
1538	* Remove and free all objects in the given map.	847	{
1539	*/	848	assert (destroyed ());
		849	}
1540		850
1541	void	851	void
1542	free_all_objects (mapstruct *m)	852	maptile::clear_links_to (maptile *m)
1543	{	853	{
1544	int i, j;
1545	object *op;
1546
1547	for (i = 0; i < MAP_WIDTH (m); i++)
1548	for (j = 0; j < MAP_HEIGHT (m); j++)
1549	{
1550	object *previous_obj = NULL;
1551
1552	while ((op = GET_MAP_OB (m, i, j)) != NULL)
1553	{
1554	if (op == previous_obj)
1555	{
1556	LOG (llevDebug, "free_all_objects: Link error, bailing out.\n");
1557	break;
1558	}
1559	previous_obj = op;
1560	if (op->head != NULL)
1561	op = op->head;
1562
1563	/* If the map isn't in memory, free_object will remove and
1564	* free objects in op's inventory. So let it do the job.
1565	*/
1566	if (m->in_memory == MAP_IN_MEMORY)
1567	clean_object (op);
1568	remove_ob (op);
1569	free_object (op);
1570	}
1571	}
1572	}
1573
1574	/*
1575	* Frees everything allocated by the given mapstructure.
1576	* don't free tmpname - our caller is left to do that
1577	*/
1578
1579	void
1580	free_map (mapstruct *m, int flag)
1581	{
1582	int i;
1583
1584	if (!m->in_memory)
1585	{
1586	LOG (llevError, "Trying to free freed map.\n");
1587	return;
1588	}
1589	if (flag && m->spaces)
1590	free_all_objects (m);
1591	if (m->name)
1592	FREE_AND_CLEAR (m->name);
1593	if (m->spaces)
1594	FREE_AND_CLEAR (m->spaces);
1595	if (m->msg)
1596	FREE_AND_CLEAR (m->msg);
1597	if (m->maplore)
1598	FREE_AND_CLEAR (m->maplore);
1599	if (m->shopitems)
1600	delete[]m->shopitems;
1601	m->shopitems = 0;
1602	if (m->shoprace)
1603	FREE_AND_CLEAR (m->shoprace);
1604	if (m->buttons)
1605	free_objectlinkpt (m->buttons);
1606	m->buttons = NULL;
1607	for (i = 0; i < 4; i++)
1608	{
1609	if (m->tile_path[i])
1610	FREE_AND_CLEAR (m->tile_path[i]);
1611	m->tile_map[i] = NULL;
1612	}
1613	m->in_memory = MAP_SWAPPED;
1614	}
1615
1616	/*
1617	* function: vanish mapstruct
1618	* m : pointer to mapstruct, if NULL no action
1619	* this deletes all the data on the map (freeing pointers)
1620	* and then removes this map from the global linked list of maps.
1621	*/
1622
1623	void
1624	delete_map (mapstruct *m)
1625	{
1626	mapstruct *tmp, *last;
1627	int i;
1628
1629	if (!m)
1630	return;
1631
1632	m->clear ();
1633
1634	if (m->in_memory == MAP_IN_MEMORY)
1635	{
1636	/* change to MAP_SAVING, even though we are not,
1637	* so that remove_ob doesn't do as much work.
1638	*/
1639	m->in_memory = MAP_SAVING;
1640	free_map (m, 1);
1641	}
1642	/* move this out of free_map, since tmpname can still be needed if
1643	* the map is swapped out.
1644	*/
1645	if (m->tmpname)
1646	{
1647	free (m->tmpname);
1648	m->tmpname = NULL;
1649	}
1650	last = NULL;
1651	/* We need to look through all the maps and see if any maps	854	/* We need to look through all the maps and see if any maps
1652	* are pointing at this one for tiling information. Since	855	* are pointing at this one for tiling information. Since
1653	* tiling can be assymetric, we just can not look to see which	856	* tiling can be asymetric, we just can not look to see which
1654	* maps this map tiles with and clears those.	857	* maps this map tiles with and clears those.
1655	*/	858	*/
1656	for (tmp = first_map; tmp != NULL; tmp = tmp->next)
1657	{
1658	if (tmp->next == m)
1659	last = tmp;
1660
1661	/* This should hopefully get unrolled on a decent compiler */
1662	for (i = 0; i < 4; i++)	859	for (int i = 0; i < 4; i++)
1663	if (tmp->tile_map[i] == m)	860	if (tile_map[i] == m)
1664	tmp->tile_map[i] = NULL;	861	tile_map[i] = 0;
1665	}	862	}
1666		863
1667	/* If last is null, then this should be the first map in the list */	864	void
		865	maptile::do_destroy ()
		866	{
		867	attachable::do_destroy ();
		868
		869	clear ();
		870	}
		871
		872	/* decay and destroy perishable items in a map */
		873	void
		874	maptile::do_decay_objects ()
		875	{
1668	if (!last)	876	if (!spaces)
		877	return;
		878
		879	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		880	for (object *above, *op = ms->bot; op; op = above)
1669	{	881	{
1670	if (m == first_map)	882	above = op->above;
1671	first_map = m->next;	883
		884	bool destroy = 0;
		885
		886	// do not decay anything above unique floor tiles (yet :)
		887	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))
		888	break;
		889
		890	if (QUERY_FLAG (op, FLAG_IS_FLOOR)
		891	|| QUERY_FLAG (op, FLAG_OBJ_ORIGINAL)
		892	|| QUERY_FLAG (op, FLAG_UNIQUE)
		893	|| QUERY_FLAG (op, FLAG_OVERLAY_FLOOR)
		894	|| QUERY_FLAG (op, FLAG_UNPAID)
		895	|| op->is_alive ())
		896	; // do not decay
		897	else if (op->is_weapon ())
		898	{
		899	op->stats.dam--;
		900	if (op->stats.dam < 0)
		901	destroy = 1;
		902	}
		903	else if (op->is_armor ())
		904	{
		905	op->stats.ac--;
		906	if (op->stats.ac < 0)
		907	destroy = 1;
		908	}
		909	else if (op->type == FOOD)
		910	{
		911	op->stats.food -= rndm (5, 20);
		912	if (op->stats.food < 0)
		913	destroy = 1;
		914	}
1672	else	915	else
1673	/* m->path is a static char, so should hopefully still have
1674	* some useful data in it.
1675	*/
1676	LOG (llevError, "delete_map: Unable to find map %s in list\n", m->path);
1677	}
1678	else
1679	last->next = m->next;
1680
1681	delete m;
1682	}
1683
1684
1685
1686	/*
1687	* Makes sure the given map is loaded and swapped in.
1688	* name is path name of the map.
1689	* flags meaning:
1690	* 0x1 (MAP_FLUSH): flush the map - always load from the map directory,
1691	* and don't do unique items or the like.
1692	* 0x2 (MAP_PLAYER_UNIQUE) - this is a unique map for each player.
1693	* dont do any more name translation on it.
1694	*
1695	* Returns a pointer to the given map.
1696	*/
1697
1698	mapstruct *
1699	ready_map_name (const char *name, int flags)
1700	{
1701	mapstruct *m;
1702
1703	if (!name)
1704	return (NULL);
1705
1706	/* Have we been at this level before? */
1707	m = has_been_loaded (name);
1708
1709	/* Map is good to go, so just return it */
1710	if (m && (m->in_memory == MAP_LOADING || m->in_memory == MAP_IN_MEMORY))
1711	{
1712	return m;
1713	}
1714
1715	/* unique maps always get loaded from their original location, and never
1716	* a temp location. Likewise, if map_flush is set, or we have never loaded
1717	* this map, load it now. I removed the reset checking from here -
1718	* it seems the probability of a player trying to enter a map that should
1719	* reset but hasn't yet is quite low, and removing that makes this function
1720	* a bit cleaner (and players probably shouldn't rely on exact timing for
1721	* resets in any case - if they really care, they should use the 'maps command.
1722	*/
1723	if ((flags & (MAP_FLUSH | MAP_PLAYER_UNIQUE)) || !m)
1724	{
1725
1726	/* first visit or time to reset */
1727	if (m)
1728	{	916	{
1729	clean_tmp_map (m); /* Doesn't make much difference */	917	int mat = op->materials;
1730	delete_map (m);	918
		919	if (mat & M_PAPER
		920	|| mat & M_LEATHER
		921	|| mat & M_WOOD
		922	|| mat & M_ORGANIC
		923	|| mat & M_CLOTH
		924	|| mat & M_LIQUID
		925	|| (mat & M_IRON && rndm (1, 5) == 1)
		926	|| (mat & M_GLASS && rndm (1, 2) == 1)
		927	|| ((mat & M_STONE || mat & M_ADAMANT) && rndm (1, 10) == 1)
		928	|| ((mat & M_SOFT_METAL || mat & M_BONE) && rndm (1, 3) == 1)
		929	|| (mat & M_ICE && temp > 32))
		930	destroy = 1;
1731	}	931	}
1732		932
1733	/* create and load a map */	933	/* adjust overall chance below */
1734	if (flags & MAP_PLAYER_UNIQUE)	934	if (destroy && rndm (0, 1))
1735	LOG (llevDebug, "Trying to load map %s.\n", name);	935	op->destroy ();
1736	else
1737	LOG (llevDebug, "Trying to load map %s.\n", create_pathname (name));
1738
1739	//eval_pv ("$x = Event::time", 1);//D
1740	if (!(m = load_original_map (name, (flags & MAP_PLAYER_UNIQUE))))
1741	return (NULL);
1742	//eval_pv ("warn \"LOAD \", Event::time - $x", 1);//D
1743
1744	fix_auto_apply (m); /* Chests which open as default */
1745
1746	/* If a player unique map, no extra unique object file to load.
1747	* if from the editor, likewise.
1748	*/
1749	if (!(flags & (MAP_FLUSH | MAP_PLAYER_UNIQUE)))
1750	load_unique_objects (m);
1751
1752	if (!(flags & (MAP_FLUSH | MAP_PLAYER_UNIQUE | MAP_OVERLAY)))
1753	{
1754	m = load_overlay_map (name, m);
1755	if (m == NULL)
1756	return NULL;
1757	}	936	}
1758
1759	if (flags & MAP_PLAYER_UNIQUE)
1760	INVOKE_MAP (SWAPIN, m);
1761
1762	}
1763	else
1764	{
1765	/* If in this loop, we found a temporary map, so load it up. */
1766
1767	m = load_temporary_map (m);
1768	if (m == NULL)
1769	return NULL;
1770	load_unique_objects (m);
1771
1772	clean_tmp_map (m);
1773	m->in_memory = MAP_IN_MEMORY;
1774	/* tempnam() on sun systems (probably others) uses malloc
1775	* to allocated space for the string. Free it here.
1776	* In some cases, load_temporary_map above won't find the
1777	* temporary map, and so has reloaded a new map. If that
1778	* is the case, tmpname is now null
1779	*/
1780	if (m->tmpname)
1781	free (m->tmpname);
1782	m->tmpname = NULL;
1783	/* It's going to be saved anew anyway */
1784	}
1785
1786	/* Below here is stuff common to both first time loaded maps and
1787	* temp maps.
1788	*/
1789
1790	decay_objects (m); /* start the decay */
1791	/* In case other objects press some buttons down */
1792	update_buttons (m);
1793	if (m->outdoor)
1794	set_darkness_map (m);
1795	/* run the weather over this map */
1796	weather_effect (name);
1797	return m;
1798	}	937	}
1799
1800		938
1801	/*	939	/*
1802	* This routine is supposed to find out the difficulty of the map.	940	* This routine is supposed to find out the difficulty of the map.
1803	* difficulty does not have a lot to do with character level,	941	* difficulty does not have a lot to do with character level,
1804	* but does have a lot to do with treasure on the map.	942	* but does have a lot to do with treasure on the map.
1805	*	943	*
1806	* Difficulty can now be set by the map creature. If the value stored	944	* Difficulty can now be set by the map creator. If the value stored
1807	* in the map is zero, then use this routine. Maps should really	945	* in the map is zero, then use this routine. Maps should really
1808	* have a difficulty set than using this function - human calculation	946	* have a difficulty set rather than using this function - human calculation
1809	* is much better than this functions guesswork.	947	* is much better than this function's guesswork.
1810	*/	948	*/
1811
1812	int	949	int
1813	calculate_difficulty (mapstruct *m)	950	maptile::estimate_difficulty () const
1814	{	951	{
1815	object *op;
1816	archetype *at;
1817	int x, y, i;
1818	long monster_cnt = 0;	952	long monster_cnt = 0;
1819	double avgexp = 0;	953	double avgexp = 0;
1820	sint64 total_exp = 0;	954	sint64 total_exp = 0;
1821		955
1822	if (MAP_DIFFICULTY (m))	956	for (mapspace *ms = spaces + size (); ms-- > spaces; )
1823	{	957	for (object *op = ms->bot; op; op = op->above)
1824	LOG (llevDebug, "Using stored map difficulty: %d\n", MAP_DIFFICULTY (m));
1825	return MAP_DIFFICULTY (m);
1826	}
1827
1828	for (x = 0; x < MAP_WIDTH (m); x++)
1829	for (y = 0; y < MAP_HEIGHT (m); y++)
1830	for (op = get_map_ob (m, x, y); op != NULL; op = op->above)
1831	{	958	{
1832	if (QUERY_FLAG (op, FLAG_MONSTER))	959	if (QUERY_FLAG (op, FLAG_MONSTER))
1833	{	960	{
1834	total_exp += op->stats.exp;	961	total_exp += op->stats.exp;
1835	monster_cnt++;	962	monster_cnt++;
1836	}	963	}
1837		964
1838	if (QUERY_FLAG (op, FLAG_GENERATOR))	965	if (QUERY_FLAG (op, FLAG_GENERATOR))
1839	{	966	{
1840	total_exp += op->stats.exp;	967	total_exp += op->stats.exp;
1841	at = type_to_archetype (GENERATE_TYPE (op));
1842		968
1843	if (at != NULL)	969	if (archetype *at = op->other_arch)
		970	{
1844	total_exp += at->clone.stats.exp * 8;	971	total_exp += at->stats.exp * 8;
1845
1846	monster_cnt++;	972	monster_cnt++;
1847	}	973	}
		974
		975	for (object *inv = op->inv; inv; inv = inv->below)
		976	{
		977	total_exp += op->stats.exp * 8;
		978	monster_cnt++;
		979	}
1848	}	980	}
		981	}
1849		982
1850	avgexp = (double) total_exp / monster_cnt;	983	avgexp = (double) total_exp / monster_cnt;
1851		984
1852	for (i = 1; i <= settings.max_level; i++)	985	for (int i = 1; i <= settings.max_level; i++)
1853	{
1854	if ((level_exp (i, 1) - level_exp (i - 1, 1)) > (100 * avgexp))	986	if ((level_exp (i, 1) - level_exp (i - 1, 1)) > (100 * avgexp))
1855	{
1856	/* LOG(llevDebug, "Calculated difficulty for map: %s: %d\n", m->name, i); */
1857	return i;	987	return i;
1858	}
1859	}
1860		988
1861	return 1;	989	return 1;
1862	}
1863
1864	void
1865	clean_tmp_map (mapstruct *m)
1866	{
1867	if (m->tmpname == NULL)
1868	return;
1869	INVOKE_MAP (CLEAN, m);
1870	(void) unlink (m->tmpname);
1871	}
1872
1873	void
1874	free_all_maps (void)
1875	{
1876	int real_maps = 0;
1877
1878	while (first_map)
1879	{
1880	/* I think some of the callers above before it gets here set this to be
1881	* saving, but we still want to free this data
1882	*/
1883	if (first_map->in_memory == MAP_SAVING)
1884	first_map->in_memory = MAP_IN_MEMORY;
1885	delete_map (first_map);
1886	real_maps++;
1887	}
1888	LOG (llevDebug, "free_all_maps: Freed %d maps\n", real_maps);
1889	}	990	}
1890		991
1891	/* change_map_light() - used to change map light level (darkness)	992	/* change_map_light() - used to change map light level (darkness)
1892	* up or down. Returns true if successful. It should now be	993	* up or down. Returns true if successful. It should now be
1893	* possible to change a value by more than 1.	994	* possible to change a value by more than 1.
1894	* Move this from los.c to map.c since this is more related	995	* Move this from los.c to map.c since this is more related
1895	* to maps than los.	996	* to maps than los.
1896	* postive values make it darker, negative make it brighter	997	* postive values make it darker, negative make it brighter
1897	*/	998	*/
1898
1899	int	999	int
1900	change_map_light (mapstruct *m, int change)	1000	maptile::change_map_light (int change)
1901	{	1001	{
1902	int new_level = m->darkness + change;
1903
1904	/* Nothing to do */	1002	/* Nothing to do */
1905	if (!change || (new_level <= 0 && m->darkness == 0) || (new_level >= MAX_DARKNESS && m->darkness >= MAX_DARKNESS))	1003	if (!change)
1906	{
1907	return 0;	1004	return 0;
1908	}
1909		1005
1910	/* inform all players on the map */	1006	/* inform all players on the map */
1911	if (change > 0)	1007	if (change > 0)
1912	new_info_map (NDI_BLACK | NDI_UNIQUE, m, "It becomes darker.");	1008	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes darker.");
1913	else	1009	else
1914	new_info_map (NDI_BLACK | NDI_UNIQUE, m, "It becomes brighter.");	1010	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes brighter.");
1915		1011
1916	/* Do extra checking. since m->darkness is a unsigned value,	1012	darkness = clamp (darkness + change, -MAX_DARKNESS, MAX_DARKNESS);
1917	* we need to be extra careful about negative values.
1918	* In general, the checks below are only needed if change
1919	* is not +/-1
1920	*/
1921	if (new_level < 0)
1922	m->darkness = 0;
1923	else if (new_level >= MAX_DARKNESS)
1924	m->darkness = MAX_DARKNESS;
1925	else
1926	m->darkness = new_level;
1927		1013
1928	/* All clients need to get re-updated for the change */	1014	/* All clients need to get re-updated for the change */
1929	update_all_map_los (m);	1015	update_all_map_los (this);
		1016
1930	return 1;	1017	return 1;
1931	}	1018	}
1932
1933		1019
1934	/*	1020	/*
1935	* This function updates various attributes about a specific space	1021	* This function updates various attributes about a specific space
1936	* on the map (what it looks like, whether it blocks magic,	1022	* on the map (what it looks like, whether it blocks magic,
1937	* has a living creatures, prevents people from passing	1023	* has a living creatures, prevents people from passing
1938	* through, etc)	1024	* through, etc)
1939	*/	1025	*/
1940	void	1026	void
1941	update_position (mapstruct *m, int x, int y)	1027	mapspace::update_ ()
1942	{	1028	{
1943	object *tmp, *last = NULL;	1029	object *last = 0;
1944	uint8 flags = 0, oldflags, light = 0, anywhere = 0;	1030	uint8 flags = P_UPTODATE, anywhere = 0;
1945	New_Face *top, *floor, *middle;	1031	sint8 light = 0;
1946	object *top_obj, *floor_obj, *middle_obj;
1947	MoveType move_block = 0, move_slow = 0, move_on = 0, move_off = 0, move_allow = 0;	1032	MoveType move_block = 0, move_slow = 0, move_on = 0, move_off = 0, move_allow = 0;
1948		1033
1949	oldflags = GET_MAP_FLAGS (m, x, y);	1034	//object *middle = 0;
1950	if (!(oldflags & P_NEED_UPDATE))	1035	//object *top = 0;
1951	{	1036	//object *floor = 0;
1952	LOG (llevDebug, "update_position called with P_NEED_UPDATE not set: %s (%d, %d)\n", m->path, x, y);	1037	// this seems to generate better code than using locals, above
1953	return;	1038	object *&top = faces_obj[0] = 0;
		1039	object *&middle = faces_obj[1] = 0;
		1040	object *&floor = faces_obj[2] = 0;
		1041
		1042	for (object *tmp = bot; tmp; last = tmp, tmp = tmp->above)
1954	}	1043	{
1955		1044	// Lights are additive, up to MAX_LIGHT_RADIUS, see los.C)
1956	middle = blank_face;
1957	top = blank_face;
1958	floor = blank_face;
1959
1960	middle_obj = NULL;
1961	top_obj = NULL;
1962	floor_obj = NULL;
1963
1964	for (tmp = get_map_ob (m, x, y); tmp; last = tmp, tmp = tmp->above)
1965	{
1966
1967	/* This could be made additive I guess (two lights better than
1968	* one). But if so, it shouldn't be a simple additive - 2
1969	* light bulbs do not illuminate twice as far as once since
1970	* it is a disapation factor that is squared (or is it cubed?)
1971	*/
1972	if (tmp->glow_radius > light)
1973	light = tmp->glow_radius;	1045	light += tmp->glow_radius;
1974		1046
1975	/* This call is needed in order to update objects the player	1047	/* This call is needed in order to update objects the player
1976	* is standing in that have animations (ie, grass, fire, etc).	1048	* is standing in that have animations (ie, grass, fire, etc).
1977	* However, it also causes the look window to be re-drawn	1049	* However, it also causes the look window to be re-drawn
1978	* 3 times each time the player moves, because many of the	1050	* 3 times each time the player moves, because many of the
…		…
1981	* Always put the player down for drawing.	1053	* Always put the player down for drawing.
1982	*/	1054	*/
1983	if (!tmp->invisible)	1055	if (!tmp->invisible)
1984	{	1056	{
1985	if ((tmp->type == PLAYER || QUERY_FLAG (tmp, FLAG_MONSTER)))	1057	if ((tmp->type == PLAYER || QUERY_FLAG (tmp, FLAG_MONSTER)))
1986	{
1987	top = tmp->face;
1988	top_obj = tmp;	1058	top = tmp;
1989	}
1990	else if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))	1059	else if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))
1991	{	1060	{
1992	/* If we got a floor, that means middle and top were below it,	1061	/* If we got a floor, that means middle and top were below it,
1993	* so should not be visible, so we clear them.	1062	* so should not be visible, so we clear them.
1994	*/	1063	*/
1995	middle = blank_face;	1064	middle = 0;
1996	top = blank_face;	1065	top = 0;
1997	floor = tmp->face;
1998	floor_obj = tmp;	1066	floor = tmp;
1999	}	1067	}
2000	/* Flag anywhere have high priority */	1068	/* Flag anywhere have high priority */
2001	else if (QUERY_FLAG (tmp, FLAG_SEE_ANYWHERE))	1069	else if (QUERY_FLAG (tmp, FLAG_SEE_ANYWHERE))
2002	{	1070	{
2003	middle = tmp->face;
2004
2005	middle_obj = tmp;	1071	middle = tmp;
2006	anywhere = 1;	1072	anywhere = 1;
2007	}	1073	}
		1074
2008	/* Find the highest visible face around. If equal	1075	/* Find the highest visible face around. If equal
2009	* visibilities, we still want the one nearer to the	1076	* visibilities, we still want the one nearer to the
2010	* top	1077	* top
2011	*/	1078	*/
2012	else if (middle == blank_face || (tmp->face->visibility > middle->visibility && !anywhere))	1079	else if (!middle || (::faces [tmp->face].visibility > ::faces [middle->face].visibility && !anywhere))
2013	{
2014	middle = tmp->face;
2015	middle_obj = tmp;	1080	middle = tmp;
2016	}
2017	}	1081	}
		1082
2018	if (tmp == tmp->above)	1083	if (tmp == tmp->above)
2019	{	1084	{
2020	LOG (llevError, "Error in structure of map\n");	1085	LOG (llevError, "Error in structure of map\n");
2021	exit (-1);	1086	exit (-1);
2022	}	1087	}
2023		1088
2024	move_slow |= tmp->move_slow;	1089	move_slow |= tmp->move_slow;
2025	move_block |= tmp->move_block;	1090	move_block |= tmp->move_block;
2026	move_on |= tmp->move_on;	1091	move_on |= tmp->move_on;
2027	move_off |= tmp->move_off;	1092	move_off |= tmp->move_off;
2028	move_allow |= tmp->move_allow;	1093	move_allow |= tmp->move_allow;
2029		1094
2030	if (QUERY_FLAG (tmp, FLAG_ALIVE))
2031	flags |= P_IS_ALIVE;
2032	if (QUERY_FLAG (tmp, FLAG_NO_MAGIC))
2033	flags |= P_NO_MAGIC;
2034	if (QUERY_FLAG (tmp, FLAG_DAMNED))
2035	flags |= P_NO_CLERIC;
2036	if (tmp->type == SAFE_GROUND)
2037	flags |= P_SAFE;
2038
2039	if (QUERY_FLAG (tmp, FLAG_BLOCKSVIEW))	1095	if (QUERY_FLAG (tmp, FLAG_BLOCKSVIEW)) flags |= P_BLOCKSVIEW;
2040	flags |= P_BLOCKSVIEW;	1096	if (QUERY_FLAG (tmp, FLAG_NO_MAGIC)) flags |= P_NO_MAGIC;
2041	} /* for stack of objects */	1097	if (tmp->type == PLAYER) flags |= P_PLAYER;
2042		1098	if (tmp->type == SAFE_GROUND) flags |= P_SAFE;
2043	/* we don't want to rely on this function to have accurate flags, but	1099	if (QUERY_FLAG (tmp, FLAG_ALIVE)) flags |= P_IS_ALIVE;
2044	* since we're already doing the work, we calculate them here.	1100	if (QUERY_FLAG (tmp, FLAG_DAMNED)) flags |= P_NO_CLERIC;
2045	* if they don't match, logic is broken someplace.
2046	*/
2047	if (((oldflags & ~(P_NEED_UPDATE | P_NO_ERROR)) != flags) && (!(oldflags & P_NO_ERROR)))
2048	{	1101	}
2049	LOG (llevDebug, "update_position: updated flags do not match old flags: %s (old=%d,new=%d) %x != %x\n",	1102
2050	m->path, x, y, (oldflags & ~P_NEED_UPDATE), flags);	1103	this->light = min (light, MAX_LIGHT_RADIUS);
2051	}	1104	this->flags_ = flags;
2052	SET_MAP_FLAGS (m, x, y, flags);	1105	this->move_block = move_block & ~move_allow;
2053	SET_MAP_MOVE_BLOCK (m, x, y, move_block & ~move_allow);	1106	this->move_on = move_on;
2054	SET_MAP_MOVE_ON (m, x, y, move_on);	1107	this->move_off = move_off;
2055	SET_MAP_MOVE_OFF (m, x, y, move_off);	1108	this->move_slow = move_slow;
2056	SET_MAP_MOVE_SLOW (m, x, y, move_slow);
2057		1109
2058	/* At this point, we have a floor face (if there is a floor),	1110	/* At this point, we have a floor face (if there is a floor),
2059	* and the floor is set - we are not going to touch it at	1111	* and the floor is set - we are not going to touch it at
2060	* this point.	1112	* this point.
2061	* middle contains the highest visibility face.	1113	* middle contains the highest visibility face.
…		…
2068	* middle face. This should not happen, as we already have the	1120	* middle face. This should not happen, as we already have the
2069	* else statement above so middle should not get set. OTOH, it	1121	* else statement above so middle should not get set. OTOH, it
2070	* may be possible for the faces to match but be different objects.	1122	* may be possible for the faces to match but be different objects.
2071	*/	1123	*/
2072	if (top == middle)	1124	if (top == middle)
2073	middle = blank_face;	1125	middle = 0;
2074		1126
2075	/* There are three posibilities at this point:	1127	/* There are three posibilities at this point:
2076	* 1) top face is set, need middle to be set.	1128	* 1) top face is set, need middle to be set.
2077	* 2) middle is set, need to set top.	1129	* 2) middle is set, need to set top.
2078	* 3) neither middle or top is set - need to set both.	1130	* 3) neither middle or top is set - need to set both.
2079	*/	1131	*/
2080		1132
2081	for (tmp = last; tmp; tmp = tmp->below)	1133	for (object *tmp = last; tmp; tmp = tmp->below)
2082	{	1134	{
2083	/* Once we get to a floor, stop, since we already have a floor object */	1135	/* Once we get to a floor, stop, since we already have a floor object */
2084	if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))	1136	if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))
2085	break;	1137	break;
2086		1138
2087	/* If two top faces are already set, quit processing */	1139	/* If two top faces are already set, quit processing */
2088	if ((top != blank_face) && (middle != blank_face))	1140	if (top && middle)
2089	break;	1141	break;
2090		1142
2091	/* Only show visible faces, unless its the editor - show all */	1143	/* Only show visible faces */
2092	if (!tmp->invisible || editor)	1144	if (!tmp->invisible)
2093	{	1145	{
2094	/* Fill in top if needed */	1146	/* Fill in top if needed */
2095	if (top == blank_face)	1147	if (!top)
2096	{	1148	{
2097	top = tmp->face;
2098	top_obj = tmp;	1149	top = tmp;
2099	if (top == middle)	1150	if (top == middle)
2100	middle = blank_face;	1151	middle = 0;
2101	}	1152	}
2102	else	1153	else
2103	{	1154	{
2104	/* top is already set - we should only get here if	1155	/* top is already set - we should only get here if
2105	* middle is not set	1156	* middle is not set
2106	*	1157	*
2107	* Set the middle face and break out, since there is nothing	1158	* Set the middle face and break out, since there is nothing
2108	* more to fill in. We don't check visiblity here, since	1159	* more to fill in. We don't check visiblity here, since
2109	*	1160	*
2110	*/	1161	*/
2111	if (tmp->face != top)	1162	if (tmp != top)
2112	{	1163	{
2113	middle = tmp->face;
2114	middle_obj = tmp;	1164	middle = tmp;
2115	break;	1165	break;
2116	}	1166	}
2117	}	1167	}
2118	}	1168	}
2119	}	1169	}
		1170
2120	if (middle == floor)	1171	if (middle == floor)
2121	middle = blank_face;	1172	middle = 0;
		1173
2122	if (top == middle)	1174	if (top == middle)
2123	middle = blank_face;	1175	middle = 0;
2124	SET_MAP_FACE (m, x, y, top, 0);
2125	if (top != blank_face)
2126	SET_MAP_FACE_OBJ (m, x, y, top_obj, 0);
2127	else
2128	SET_MAP_FACE_OBJ (m, x, y, NULL, 0);
2129	SET_MAP_FACE (m, x, y, middle, 1);
2130	if (middle != blank_face)
2131	SET_MAP_FACE_OBJ (m, x, y, middle_obj, 1);
2132	else
2133	SET_MAP_FACE_OBJ (m, x, y, NULL, 1);
2134	SET_MAP_FACE (m, x, y, floor, 2);
2135	if (floor != blank_face)
2136	SET_MAP_FACE_OBJ (m, x, y, floor_obj, 2);
2137	else
2138	SET_MAP_FACE_OBJ (m, x, y, NULL, 2);
2139	SET_MAP_LIGHT (m, x, y, light);
2140	}
2141		1176
2142		1177	#if 0
2143	void	1178	faces_obj [0] = top;
2144	set_map_reset_time (mapstruct *map)	1179	faces_obj [1] = middle;
2145	{	1180	faces_obj [2] = floor;
2146	int timeout;	1181	#endif
2147
2148	timeout = MAP_RESET_TIMEOUT (map);
2149	if (timeout <= 0)
2150	timeout = MAP_DEFAULTRESET;
2151	if (timeout >= MAP_MAXRESET)
2152	timeout = MAP_MAXRESET;
2153	MAP_WHEN_RESET (map) = seconds () + timeout;
2154	}	1182	}
2155		1183
2156	/* this updates the orig_map->tile_map[tile_num] value after loading	1184	uint64
2157	* the map. It also takes care of linking back the freshly loaded	1185	mapspace::volume () const
2158	* maps tile_map values if it tiles back to this one. It returns
2159	* the value of orig_map->tile_map[tile_num]. It really only does this
2160	* so that it is easier for calling functions to verify success.
2161	*/
2162
2163	static mapstruct *
2164	load_and_link_tiled_map (mapstruct *orig_map, int tile_num)
2165	{	1186	{
2166	int dest_tile = (tile_num + 2) % 4;	1187	uint64 vol = 0;
2167	char *path = path_combine_and_normalize (orig_map->path, orig_map->tile_path[tile_num]);
2168		1188
2169	orig_map->tile_map[tile_num] = ready_map_name (path, 0);	1189	for (object *op = top; op && !op->flag [FLAG_NO_PICK]; op = op->below)
		1190	vol += op->volume ();
2170		1191
2171	/* need to do a strcmp here as the orig_map->path is not a shared string */	1192	return vol;
2172	if (orig_map->tile_map[tile_num]->tile_path[dest_tile] && !strcmp (orig_map->tile_map[tile_num]->tile_path[dest_tile], orig_map->path))	1193	}
2173	orig_map->tile_map[tile_num]->tile_map[dest_tile] = orig_map;
2174		1194
2175	return orig_map->tile_map[tile_num];	1195	maptile *
		1196	maptile::tile_available (int dir, bool load)
		1197	{
		1198	if (tile_path[dir])
		1199	{
		1200	if (tile_map[dir] && (!load || tile_map[dir]->in_memory == MAP_ACTIVE))
		1201	return tile_map[dir];
		1202
		1203	if ((tile_map[dir] = find_async (tile_path[dir], this, load)))
		1204	return tile_map[dir];
		1205	}
		1206
		1207	return 0;
2176	}	1208	}
2177		1209
2178	/* this returns TRUE if the coordinates (x,y) are out of	1210	/* this returns TRUE if the coordinates (x,y) are out of
2179	* map m. This function also takes into account any	1211	* map m. This function also takes into account any
2180	* tiling considerations, loading adjacant maps as needed.	1212	* tiling considerations, loading adjacant maps as needed.
2181	* This is the function should always be used when it	1213	* This is the function should always be used when it
2182	* necessary to check for valid coordinates.	1214	* necessary to check for valid coordinates.
2183	* This function will recursively call itself for the	1215	* This function will recursively call itself for the
2184	* tiled maps.	1216	* tiled maps.
2185	*
2186	*
2187	*/	1217	*/
2188	int	1218	int
2189	out_of_map (mapstruct *m, int x, int y)	1219	out_of_map (maptile *m, int x, int y)
2190	{	1220	{
2191
2192	/* If we get passed a null map, this is obviously the	1221	/* If we get passed a null map, this is obviously the
2193	* case. This generally shouldn't happen, but if the	1222	* case. This generally shouldn't happen, but if the
2194	* map loads fail below, it could happen.	1223	* map loads fail below, it could happen.
2195	*/	1224	*/
2196	if (!m)	1225	if (!m)
2197	return 0;	1226	return 0;
2198		1227
2199	if (x < 0)	1228	if (x < 0)
2200	{	1229	{
2201	if (!m->tile_path[3])	1230	if (!m->tile_available (3))
2202	return 1;	1231	return 1;
2203	if (!m->tile_map[3] || m->tile_map[3]->in_memory != MAP_IN_MEMORY)	1232
2204	{
2205	load_and_link_tiled_map (m, 3);
2206	}
2207	return (out_of_map (m->tile_map[3], x + MAP_WIDTH (m->tile_map[3]), y));	1233	return out_of_map (m->tile_map[3], x + m->tile_map[3]->width, y);
2208	}
2209	if (x >= MAP_WIDTH (m))
2210	{	1234	}
2211	if (!m->tile_path[1])	1235
		1236	if (x >= m->width)
		1237	{
		1238	if (!m->tile_available (1))
2212	return 1;	1239	return 1;
2213	if (!m->tile_map[1] || m->tile_map[1]->in_memory != MAP_IN_MEMORY)	1240
2214	{
2215	load_and_link_tiled_map (m, 1);
2216	}
2217	return (out_of_map (m->tile_map[1], x - MAP_WIDTH (m), y));	1241	return out_of_map (m->tile_map[1], x - m->width, y);
2218	}	1242	}
		1243
2219	if (y < 0)	1244	if (y < 0)
2220	{	1245	{
2221	if (!m->tile_path[0])	1246	if (!m->tile_available (0))
2222	return 1;	1247	return 1;
2223	if (!m->tile_map[0] || m->tile_map[0]->in_memory != MAP_IN_MEMORY)	1248
2224	{
2225	load_and_link_tiled_map (m, 0);
2226	}
2227	return (out_of_map (m->tile_map[0], x, y + MAP_HEIGHT (m->tile_map[0])));	1249	return out_of_map (m->tile_map[0], x, y + m->tile_map[0]->height);
2228	}
2229	if (y >= MAP_HEIGHT (m))
2230	{	1250	}
2231	if (!m->tile_path[2])	1251
		1252	if (y >= m->height)
		1253	{
		1254	if (!m->tile_available (2))
2232	return 1;	1255	return 1;
2233	if (!m->tile_map[2] || m->tile_map[2]->in_memory != MAP_IN_MEMORY)	1256
2234	{
2235	load_and_link_tiled_map (m, 2);
2236	}
2237	return (out_of_map (m->tile_map[2], x, y - MAP_HEIGHT (m)));	1257	return out_of_map (m->tile_map[2], x, y - m->height);
2238	}	1258	}
2239		1259
2240	/* Simple case - coordinates are within this local	1260	/* Simple case - coordinates are within this local
2241	* map.	1261	* map.
2242	*/	1262	*/
…		…
2245		1265
2246	/* This is basically the same as out_of_map above, but	1266	/* This is basically the same as out_of_map above, but
2247	* instead we return NULL if no map is valid (coordinates	1267	* instead we return NULL if no map is valid (coordinates
2248	* out of bounds and no tiled map), otherwise it returns	1268	* out of bounds and no tiled map), otherwise it returns
2249	* the map as that the coordinates are really on, and	1269	* the map as that the coordinates are really on, and
2250	* updates x and y to be the localized coordinates.	1270	* updates x and y to be the localised coordinates.
2251	* Using this is more efficient of calling out_of_map	1271	* Using this is more efficient of calling out_of_map
2252	* and then figuring out what the real map is	1272	* and then figuring out what the real map is
2253	*/	1273	*/
2254	mapstruct *	1274	maptile *
2255	get_map_from_coord (mapstruct *m, sint16 * x, sint16 * y)	1275	maptile::xy_find (sint16 &x, sint16 &y)
2256	{	1276	{
2257
2258	if (*x < 0)	1277	if (x < 0)
2259	{	1278	{
2260	if (!m->tile_path[3])	1279	if (!tile_available (3))
2261	return NULL;	1280	return 0;
2262	if (!m->tile_map[3] || m->tile_map[3]->in_memory != MAP_IN_MEMORY)
2263	load_and_link_tiled_map (m, 3);
2264		1281
2265	*x += MAP_WIDTH (m->tile_map[3]);	1282	x += tile_map[3]->width;
2266	return (get_map_from_coord (m->tile_map[3], x, y));	1283	return tile_map[3]->xy_find (x, y);
2267	}
2268	if (*x >= MAP_WIDTH (m))
2269	{	1284	}
2270	if (!m->tile_path[1])	1285
		1286	if (x >= width)
		1287	{
		1288	if (!tile_available (1))
2271	return NULL;	1289	return 0;
2272	if (!m->tile_map[1] || m->tile_map[1]->in_memory != MAP_IN_MEMORY)
2273	load_and_link_tiled_map (m, 1);
2274		1290
2275	*x -= MAP_WIDTH (m);	1291	x -= width;
2276	return (get_map_from_coord (m->tile_map[1], x, y));	1292	return tile_map[1]->xy_find (x, y);
2277	}	1293	}
		1294
2278	if (*y < 0)	1295	if (y < 0)
2279	{	1296	{
2280	if (!m->tile_path[0])	1297	if (!tile_available (0))
2281	return NULL;	1298	return 0;
2282	if (!m->tile_map[0] || m->tile_map[0]->in_memory != MAP_IN_MEMORY)
2283	load_and_link_tiled_map (m, 0);
2284		1299
2285	*y += MAP_HEIGHT (m->tile_map[0]);	1300	y += tile_map[0]->height;
2286	return (get_map_from_coord (m->tile_map[0], x, y));	1301	return tile_map[0]->xy_find (x, y);
2287	}
2288	if (*y >= MAP_HEIGHT (m))
2289	{	1302	}
2290	if (!m->tile_path[2])	1303
		1304	if (y >= height)
		1305	{
		1306	if (!tile_available (2))
2291	return NULL;	1307	return 0;
2292	if (!m->tile_map[2] || m->tile_map[2]->in_memory != MAP_IN_MEMORY)
2293	load_and_link_tiled_map (m, 2);
2294		1308
2295	*y -= MAP_HEIGHT (m);	1309	y -= height;
2296	return (get_map_from_coord (m->tile_map[2], x, y));	1310	return tile_map[2]->xy_find (x, y);
2297	}	1311	}
2298		1312
2299	/* Simple case - coordinates are within this local	1313	/* Simple case - coordinates are within this local
2300	* map.	1314	* map.
2301	*/	1315	*/
2302
2303	return m;	1316	return this;
2304	}	1317	}
2305		1318
2306	/**	1319	/**
2307	* Return whether map2 is adjacent to map1. If so, store the distance from	1320	* Return whether map2 is adjacent to map1. If so, store the distance from
2308	* map1 to map2 in dx/dy.	1321	* map1 to map2 in dx/dy.
2309	*/	1322	*/
2310	static int	1323	int
2311	adjacent_map (const mapstruct *map1, const mapstruct *map2, int *dx, int *dy)	1324	adjacent_map (const maptile *map1, const maptile *map2, int *dx, int *dy)
2312	{	1325	{
2313	if (!map1 || !map2)	1326	if (!map1 || !map2)
2314	return 0;	1327	return 0;
2315		1328
		1329	//TODO: this doesn't actually check correctly when intermediate maps are not loaded
		1330	//fix: compare paths instead (this is likely faster, too!)
2316	if (map1 == map2)	1331	if (map1 == map2)
2317	{	1332	{
2318	*dx = 0;	1333	*dx = 0;
2319	*dy = 0;	1334	*dy = 0;
2320
2321	}	1335	}
2322	else if (map1->tile_map[0] == map2)	1336	else if (map1->tile_map[0] == map2)
2323	{ /* up */	1337	{ /* up */
2324	*dx = 0;	1338	*dx = 0;
2325	*dy = -MAP_HEIGHT (map2);	1339	*dy = -map2->height;
2326	}	1340	}
2327	else if (map1->tile_map[1] == map2)	1341	else if (map1->tile_map[1] == map2)
2328	{ /* right */	1342	{ /* right */
2329	*dx = MAP_WIDTH (map1);	1343	*dx = map1->width;
2330	*dy = 0;	1344	*dy = 0;
2331	}	1345	}
2332	else if (map1->tile_map[2] == map2)	1346	else if (map1->tile_map[2] == map2)
2333	{ /* down */	1347	{ /* down */
2334	*dx = 0;	1348	*dx = 0;
2335	*dy = MAP_HEIGHT (map1);	1349	*dy = map1->height;
2336	}	1350	}
2337	else if (map1->tile_map[3] == map2)	1351	else if (map1->tile_map[3] == map2)
2338	{ /* left */	1352	{ /* left */
2339	*dx = -MAP_WIDTH (map2);	1353	*dx = -map2->width;
2340	*dy = 0;	1354	*dy = 0;
2341
2342	}	1355	}
2343	else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[1] == map2)	1356	else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[1] == map2)
2344	{ /* up right */	1357	{ /* up right */
2345	*dx = MAP_WIDTH (map1->tile_map[0]);	1358	*dx = map1->tile_map[0]->width;
2346	*dy = -MAP_HEIGHT (map1->tile_map[0]);	1359	*dy = -map1->tile_map[0]->height;
2347	}	1360	}
2348	else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[3] == map2)	1361	else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[3] == map2)
2349	{ /* up left */	1362	{ /* up left */
2350	*dx = -MAP_WIDTH (map2);	1363	*dx = -map2->width;
2351	*dy = -MAP_HEIGHT (map1->tile_map[0]);	1364	*dy = -map1->tile_map[0]->height;
2352	}	1365	}
2353	else if (map1->tile_map[1] && map1->tile_map[1]->tile_map[0] == map2)	1366	else if (map1->tile_map[1] && map1->tile_map[1]->tile_map[0] == map2)
2354	{ /* right up */	1367	{ /* right up */
2355	*dx = MAP_WIDTH (map1);	1368	*dx = map1->width;
2356	*dy = -MAP_HEIGHT (map2);	1369	*dy = -map2->height;
2357	}	1370	}
2358	else if (map1->tile_map[1] && map1->tile_map[1]->tile_map[2] == map2)	1371	else if (map1->tile_map[1] && map1->tile_map[1]->tile_map[2] == map2)
2359	{ /* right down */	1372	{ /* right down */
2360	*dx = MAP_WIDTH (map1);	1373	*dx = map1->width;
2361	*dy = MAP_HEIGHT (map1->tile_map[1]);	1374	*dy = map1->tile_map[1]->height;
2362	}	1375	}
2363	else if (map1->tile_map[2] && map1->tile_map[2]->tile_map[1] == map2)	1376	else if (map1->tile_map[2] && map1->tile_map[2]->tile_map[1] == map2)
2364	{ /* down right */	1377	{ /* down right */
2365	*dx = MAP_WIDTH (map1->tile_map[2]);	1378	*dx = map1->tile_map[2]->width;
2366	*dy = MAP_HEIGHT (map1);	1379	*dy = map1->height;
2367	}	1380	}
2368	else if (map1->tile_map[2] && map1->tile_map[2]->tile_map[3] == map2)	1381	else if (map1->tile_map[2] && map1->tile_map[2]->tile_map[3] == map2)
2369	{ /* down left */	1382	{ /* down left */
2370	*dx = -MAP_WIDTH (map2);	1383	*dx = -map2->width;
2371	*dy = MAP_HEIGHT (map1);	1384	*dy = map1->height;
2372	}	1385	}
2373	else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[0] == map2)	1386	else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[0] == map2)
2374	{ /* left up */	1387	{ /* left up */
2375	*dx = -MAP_WIDTH (map1->tile_map[3]);	1388	*dx = -map1->tile_map[3]->width;
2376	*dy = -MAP_HEIGHT (map2);	1389	*dy = -map2->height;
2377	}	1390	}
2378	else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[2] == map2)	1391	else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[2] == map2)
2379	{ /* left down */	1392	{ /* left down */
2380	*dx = -MAP_WIDTH (map1->tile_map[3]);	1393	*dx = -map1->tile_map[3]->width;
2381	*dy = MAP_HEIGHT (map1->tile_map[3]);	1394	*dy = map1->tile_map[3]->height;
2382
2383	}	1395	}
2384	else	1396	else
2385	{ /* not "adjacent" enough */
2386	return 0;	1397	return 0;
2387	}
2388		1398
2389	return 1;	1399	return 1;
		1400	}
		1401
		1402	maptile *
		1403	maptile::xy_load (sint16 &x, sint16 &y)
		1404	{
		1405	maptile *map = xy_find (x, y);
		1406
		1407	if (map)
		1408	map->load_sync ();
		1409
		1410	return map;
		1411	}
		1412
		1413	maptile *
		1414	get_map_from_coord (maptile *m, sint16 *x, sint16 *y)
		1415	{
		1416	return m->xy_load (*x, *y);
2390	}	1417	}
2391		1418
2392	/* From map.c	1419	/* From map.c
2393	* This is used by get_player to determine where the other	1420	* This is used by get_player to determine where the other
2394	* creature is. get_rangevector takes into account map tiling,	1421	* creature is. get_rangevector takes into account map tiling,
2395	* so you just can not look the the map coordinates and get the	1422	* so you just can not look the the map coordinates and get the
2396	* righte value. distance_x/y are distance away, which	1423	* righte value. distance_x/y are distance away, which
2397	* can be negativbe. direction is the crossfire direction scheme	1424	* can be negative. direction is the crossfire direction scheme
2398	* that the creature should head. part is the part of the	1425	* that the creature should head. part is the part of the
2399	* monster that is closest.	1426	* monster that is closest.
2400	*	1427	*
2401	* get_rangevector looks at op1 and op2, and fills in the	1428	* get_rangevector looks at op1 and op2, and fills in the
2402	* structure for op1 to get to op2.	1429	* structure for op1 to get to op2.
…		…
2407	* be unexpected	1434	* be unexpected
2408	*	1435	*
2409	* currently, the only flag supported (0x1) is don't translate for	1436	* currently, the only flag supported (0x1) is don't translate for
2410	* closest body part of 'op1'	1437	* closest body part of 'op1'
2411	*/	1438	*/
2412
2413	void	1439	void
2414	get_rangevector (object *op1, object *op2, rv_vector * retval, int flags)	1440	get_rangevector (object *op1, object *op2, rv_vector * retval, int flags)
2415	{	1441	{
2416	if (!adjacent_map (op1->map, op2->map, &retval->distance_x, &retval->distance_y))	1442	if (!adjacent_map (op1->map, op2->map, &retval->distance_x, &retval->distance_y))
2417	{	1443	{
2418	/* be conservative and fill in _some_ data */	1444	/* be conservative and fill in _some_ data */
2419	retval->distance = 100000;	1445	retval->distance = 10000;
2420	retval->distance_x = 32767;	1446	retval->distance_x = 10000;
2421	retval->distance_y = 32767;	1447	retval->distance_y = 10000;
2422	retval->direction = 0;	1448	retval->direction = 0;
2423	retval->part = 0;	1449	retval->part = 0;
2424	}	1450	}
2425	else	1451	else
2426	{	1452	{
…		…
2431		1457
2432	best = op1;	1458	best = op1;
2433	/* If this is multipart, find the closest part now */	1459	/* If this is multipart, find the closest part now */
2434	if (!(flags & 0x1) && op1->more)	1460	if (!(flags & 0x1) && op1->more)
2435	{	1461	{
2436	object *tmp;
2437	int best_distance = retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y, tmpi;	1462	int best_distance = retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y, tmpi;
2438		1463
2439	/* we just take the offset of the piece to head to figure	1464	/* we just take the offset of the piece to head to figure
2440	* distance instead of doing all that work above again	1465	* distance instead of doing all that work above again
2441	* since the distance fields we set above are positive in the	1466	* since the distance fields we set above are positive in the
2442	* same axis as is used for multipart objects, the simply arithmetic	1467	* same axis as is used for multipart objects, the simply arithmetic
2443	* below works.	1468	* below works.
2444	*/	1469	*/
2445	for (tmp = op1->more; tmp != NULL; tmp = tmp->more)	1470	for (object *tmp = op1->more; tmp; tmp = tmp->more)
2446	{	1471	{
2447	tmpi = (op1->x - tmp->x + retval->distance_x) * (op1->x - tmp->x + retval->distance_x) +	1472	tmpi = (op1->x - tmp->x + retval->distance_x) * (op1->x - tmp->x + retval->distance_x) +
2448	(op1->y - tmp->y + retval->distance_y) * (op1->y - tmp->y + retval->distance_y);	1473	(op1->y - tmp->y + retval->distance_y) * (op1->y - tmp->y + retval->distance_y);
2449	if (tmpi < best_distance)	1474	if (tmpi < best_distance)
2450	{	1475	{
2451	best_distance = tmpi;	1476	best_distance = tmpi;
2452	best = tmp;	1477	best = tmp;
2453	}	1478	}
2454	}	1479	}
		1480
2455	if (best != op1)	1481	if (best != op1)
2456	{	1482	{
2457	retval->distance_x += op1->x - best->x;	1483	retval->distance_x += op1->x - best->x;
2458	retval->distance_y += op1->y - best->y;	1484	retval->distance_y += op1->y - best->y;
2459	}	1485	}
2460	}	1486	}
		1487
2461	retval->part = best;	1488	retval->part = best;
2462	retval->distance = isqrt (retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y);	1489	retval->distance = upos_max (abs (retval->distance_x), abs (retval->distance_y));
2463	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);	1490	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);
2464	}	1491	}
2465	}	1492	}
2466		1493
2467	/* this is basically the same as get_rangevector above, but instead of	1494	/* this is basically the same as get_rangevector above, but instead of
…		…
2472	* flags has no meaning for this function at this time - I kept it in to	1499	* flags has no meaning for this function at this time - I kept it in to
2473	* be more consistant with the above function and also in case they are needed	1500	* be more consistant with the above function and also in case they are needed
2474	* for something in the future. Also, since no object is pasted, the best	1501	* for something in the future. Also, since no object is pasted, the best
2475	* field of the rv_vector is set to NULL.	1502	* field of the rv_vector is set to NULL.
2476	*/	1503	*/
2477
2478	void	1504	void
2479	get_rangevector_from_mapcoord (const mapstruct *m, int x, int y, const object *op2, rv_vector * retval, int flags)	1505	get_rangevector_from_mapcoord (const maptile *m, int x, int y, const object *op2, rv_vector *retval, int flags)
2480	{	1506	{
2481	if (!adjacent_map (m, op2->map, &retval->distance_x, &retval->distance_y))	1507	if (!adjacent_map (m, op2->map, &retval->distance_x, &retval->distance_y))
2482	{	1508	{
2483	/* be conservative and fill in _some_ data */	1509	/* be conservative and fill in _some_ data */
2484	retval->distance = 100000;	1510	retval->distance = 100000;
…		…
2490	else	1516	else
2491	{	1517	{
2492	retval->distance_x += op2->x - x;	1518	retval->distance_x += op2->x - x;
2493	retval->distance_y += op2->y - y;	1519	retval->distance_y += op2->y - y;
2494		1520
2495	retval->part = NULL;	1521	retval->part = 0;
2496	retval->distance = isqrt (retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y);	1522	retval->distance = upos_max (abs (retval->distance_x), abs (retval->distance_y));
2497	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);	1523	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);
2498	}	1524	}
2499	}	1525	}
2500		1526
2501	/* Returns true of op1 and op2 are effectively on the same map	1527	/* Returns true of op1 and op2 are effectively on the same map
2502	* (as related to map tiling). Note that this looks for a path from	1528	* (as related to map tiling). Note that this looks for a path from
2503	* op1 to op2, so if the tiled maps are assymetric and op2 has a path	1529	* op1 to op2, so if the tiled maps are asymetric and op2 has a path
2504	* to op1, this will still return false.	1530	* to op1, this will still return false.
2505	* Note we only look one map out to keep the processing simple	1531	* Note we only look one map out to keep the processing simple
2506	* and efficient. This could probably be a macro.	1532	* and efficient. This could probably be a macro.
2507	* MSW 2001-08-05	1533	* MSW 2001-08-05
2508	*/	1534	*/
…		…
2511	{	1537	{
2512	int dx, dy;	1538	int dx, dy;
2513		1539
2514	return adjacent_map (op1->map, op2->map, &dx, &dy);	1540	return adjacent_map (op1->map, op2->map, &dx, &dy);
2515	}	1541	}
		1542
		1543	object *
		1544	maptile::insert (object *op, int x, int y, object *originator, int flags)
		1545	{
		1546	return insert_ob_in_map_at (op, this, originator, flags, x, y);
		1547	}
		1548
		1549	region *
		1550	maptile::region (int x, int y) const
		1551	{
		1552	if (regions
		1553	&& regionmap
		1554	&& !OUT_OF_REAL_MAP (this, x, y))
		1555	if (struct region *reg = regionmap [regions [y * width + x]])
		1556	return reg;
		1557
		1558	if (default_region)
		1559	return default_region;
		1560
		1561	return ::region::default_region ();
		1562	}
		1563
		1564	/* picks a random object from a style map.
		1565	*/
		1566	object *
		1567	maptile::pick_random_object (rand_gen &gen) const
		1568	{
		1569	/* while returning a null object will result in a crash, that
		1570	* is actually preferable to an infinite loop. That is because
		1571	* most servers will automatically restart in case of crash.
		1572	* Change the logic on getting the random space - shouldn't make
		1573	* any difference, but this seems clearer to me.
		1574	*/
		1575	for (int i = 1000; --i;)
		1576	{
		1577	object *pick = at (gen (width), gen (height)).bot;
		1578
		1579	// do not prefer big monsters just because they are big.
		1580	if (pick && pick->is_head ())
		1581	return pick->head_ ();
		1582	}
		1583
		1584	// instead of crashing in the unlikely(?) case, try to return *something*
		1585	return archetype::find ("bug");
		1586	}
		1587
		1588	void
		1589	maptile::play_sound (faceidx sound, int x, int y) const
		1590	{
		1591	if (!sound)
		1592	return;
		1593
		1594	for_all_players_on_map (pl, this)
		1595	if (client *ns = pl->ns)
		1596	{
		1597	int dx = x - pl->ob->x;
		1598	int dy = y - pl->ob->y;
		1599
		1600	int distance = idistance (dx, dy);
		1601
		1602	if (distance <= MAX_SOUND_DISTANCE)
		1603	ns->play_sound (sound, dx, dy);
		1604	}
		1605	}
		1606
		1607	void
		1608	maptile::say_msg (const char *msg, int x, int y) const
		1609	{
		1610	for_all_players (pl)
		1611	if (client *ns = pl->ns)
		1612	{
		1613	int dx = x - pl->ob->x;
		1614	int dy = y - pl->ob->y;
		1615
		1616	int distance = idistance (dx, dy);
		1617
		1618	if (distance <= MAX_SOUND_DISTANCE)
		1619	ns->send_msg (NDI_GREY | NDI_DEF, SAY_CHANNEL, msg);
		1620	}
		1621	}
		1622
		1623	static void
		1624	split_to_tiles (dynbuf &buf, maptile *m, int x0, int y0, int x1, int y1, int dx, int dy)
		1625	{
		1626	// clip to map to the left
		1627	if (x0 < 0)
		1628	{
		1629	if (maptile *tile = m->tile_available (TILE_LEFT, 1))
		1630	split_to_tiles (buf, tile, x0 + tile->width, y0, min (x1 + tile->width, tile->width), y1, dx - tile->width, dy);
		1631
		1632	if (x1 < 0) // entirely to the left
		1633	return;
		1634
		1635	x0 = 0;
		1636	}
		1637
		1638	// clip to map to the right
		1639	if (x1 > m->width)
		1640	{
		1641	if (maptile *tile = m->tile_available (TILE_RIGHT, 1))
		1642	split_to_tiles (buf, tile, max (x0 - m->width, 0), y0, x1 - m->width, y1, dx + m->width, dy);
		1643
		1644	if (x0 > m->width) // entirely to the right
		1645	return;
		1646
		1647	x1 = m->width;
		1648	}
		1649
		1650	// clip to map above
		1651	if (y0 < 0)
		1652	{
		1653	if (maptile *tile = m->tile_available (TILE_UP, 1))
		1654	split_to_tiles (buf, tile, x0, y0 + tile->height, x1, min (y1 + tile->height, tile->height), dx, dy - tile->height);
		1655
		1656	if (y1 < 0) // entirely above
		1657	return;
		1658
		1659	y0 = 0;
		1660	}
		1661
		1662	// clip to map below
		1663	if (y1 > m->height)
		1664	{
		1665	if (maptile *tile = m->tile_available (TILE_DOWN, 1))
		1666	split_to_tiles (buf, tile, x0, max (y0 - m->height, 0), x1, y1 - m->height, dx, dy + m->height);
		1667
		1668	if (y0 > m->height) // entirely below
		1669	return;
		1670
		1671	y1 = m->height;
		1672	}
		1673
		1674	// if we get here, the rect is within the current map
		1675	maprect *r = (maprect *)buf.alloc (sizeof (maprect));
		1676
		1677	r->m = m;
		1678	r->x0 = x0;
		1679	r->y0 = y0;
		1680	r->x1 = x1;
		1681	r->y1 = y1;
		1682	r->dx = dx;
		1683	r->dy = dy;
		1684	}
		1685
		1686	maprect *
		1687	maptile::split_to_tiles (int x0, int y0, int x1, int y1)
		1688	{
		1689	static dynbuf buf (sizeof (maprect) * 8, sizeof (maprect) * 8);
		1690	buf.clear ();
		1691
		1692	::split_to_tiles (buf, this, x0, y0, x1, y1, 0, 0);
		1693
		1694	// add end marker
		1695	maprect *r = (maprect *)buf.alloc (sizeof (maprect));
		1696	r->m = 0;
		1697
		1698	return (maprect *)buf.linearise ();
		1699	}
		1700

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