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Comparing deliantra/server/common/map.C (file contents):
Revision 1.47 by root, Mon Dec 25 11:25:49 2006 UTC vs.
Revision 1.195 by root, Wed Apr 21 06:42:33 2010 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 (©) 2005,2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
4	Copyright (C) 2001-2003 Mark Wedel & Crossfire Development Team	5	* Copyright (©) 2001-2003 Mark Wedel & Crossfire Development Team
5	Copyright (C) 1992 Frank Tore Johansen	6	* Copyright (©) 1992 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	#include <unistd.h>	25	#include <unistd.h>
30		26
		27	#include "global.h"
31	#include "path.h"	28	#include "path.h"
32		29
33	/*	30	//+GPL
34	* Returns the maptile which has a name matching the given argument.
35	* return NULL if no match is found.
36	*/
37		31
38	maptile *	32	sint8 maptile::outdoor_darkness;
39	has_been_loaded (const char *name)
40	{
41	maptile *map;
42
43	if (!name || !*name)
44	return 0;
45	for (map = first_map; map; map = map->next)
46	if (!strcmp (name, map->path))
47	break;
48	return (map);
49	}
50
51	/*
52	* This makes a path absolute outside the world of Crossfire.
53	* In other words, it prepends LIBDIR/MAPDIR/ to the given path
54	* and returns the pointer to a static array containing the result.
55	* it really should be called create_mapname
56	*/
57
58	const char *
59	create_pathname (const char *name)
60	{
61	static char buf[MAX_BUF];
62
63	/* Why? having extra / doesn't confuse unix anyplace? Dependancies
64	* someplace else in the code? msw 2-17-97
65	*/
66	if (*name == '/')
67	sprintf (buf, "%s/%s%s", settings.datadir, settings.mapdir, name);
68	else
69	sprintf (buf, "%s/%s/%s", settings.datadir, settings.mapdir, name);
70	return (buf);
71	}
72
73	/*
74	* same as create_pathname, but for the overlay maps.
75	*/
76
77	const char *
78	create_overlay_pathname (const char *name)
79	{
80	static char buf[MAX_BUF];
81
82	/* Why? having extra / doesn't confuse unix anyplace? Dependancies
83	* someplace else in the code? msw 2-17-97
84	*/
85	if (*name == '/')
86	sprintf (buf, "%s/%s%s", settings.localdir, settings.mapdir, name);
87	else
88	sprintf (buf, "%s/%s/%s", settings.localdir, settings.mapdir, name);
89	return (buf);
90	}
91
92	/*
93	* same as create_pathname, but for the template maps.
94	*/
95
96	const char *
97	create_template_pathname (const char *name)
98	{
99	static char buf[MAX_BUF];
100
101	/* Why? having extra / doesn't confuse unix anyplace? Dependancies
102	* someplace else in the code? msw 2-17-97
103	*/
104	if (*name == '/')
105	sprintf (buf, "%s/%s%s", settings.localdir, settings.templatedir, name);
106	else
107	sprintf (buf, "%s/%s/%s", settings.localdir, settings.templatedir, name);
108	return (buf);
109	}
110
111	/*
112	* This makes absolute path to the itemfile where unique objects
113	* will be saved. Converts '/' to '@'. I think it's essier maintain
114	* files than full directory structure, but if this is problem it can
115	* be changed.
116	*/
117	static const char *
118	create_items_path (const char *s)
119	{
120	static char buf[MAX_BUF];
121	char *t;
122
123	if (*s == '/')
124	s++;
125
126	sprintf (buf, "%s/%s/", settings.localdir, settings.uniquedir);
127
128	for (t = buf + strlen (buf); *s; s++, t++)
129	if (*s == '/')
130	*t = '@';
131	else
132	*t = *s;
133	*t = 0;
134	return (buf);
135	}
136
137
138	/*
139	* This function checks if a file with the given path exists.
140	* -1 is returned if it fails, otherwise the mode of the file
141	* is returned.
142	* It tries out all the compression suffixes listed in the uncomp[] array.
143	*
144	* If prepend_dir is set, then we call create_pathname (which prepends
145	* libdir & mapdir). Otherwise, we assume the name given is fully
146	* complete.
147	* Only the editor actually cares about the writablity of this -
148	* the rest of the code only cares that the file is readable.
149	* when the editor goes away, the call to stat should probably be
150	* replaced by an access instead (similar to the windows one, but
151	* that seems to be missing the prepend_dir processing
152	*/
153
154	int
155	check_path (const char *name, int prepend_dir)
156	{
157	char buf[MAX_BUF];
158
159	char *endbuf;
160	struct stat statbuf;
161	int mode = 0;
162
163	if (prepend_dir)
164	strcpy (buf, create_pathname (name));
165	else
166	strcpy (buf, name);
167
168	/* old method (strchr(buf, '\0')) seemd very odd to me -
169	* this method should be equivalant and is clearer.
170	* Can not use strcat because we need to cycle through
171	* all the names.
172	*/
173	endbuf = buf + strlen (buf);
174
175	if (stat (buf, &statbuf))
176	return -1;
177	if (!S_ISREG (statbuf.st_mode))
178	return (-1);
179
180	if (((statbuf.st_mode & S_IRGRP) && getegid () == statbuf.st_gid) ||
181	((statbuf.st_mode & S_IRUSR) && geteuid () == statbuf.st_uid) || (statbuf.st_mode & S_IROTH))
182	mode |= 4;
183
184	if ((statbuf.st_mode & S_IWGRP && getegid () == statbuf.st_gid) ||
185	(statbuf.st_mode & S_IWUSR && geteuid () == statbuf.st_uid) || (statbuf.st_mode & S_IWOTH))
186	mode |= 2;
187
188	return (mode);
189	}
190
191	/*
192	* Prints out debug-information about a map.
193	* Dumping these at llevError doesn't seem right, but is
194	* necessary to make sure the information is in fact logged.
195	*/
196
197	void
198	dump_map (const maptile *m)
199	{
200	LOG (llevError, "Map %s status: %d.\n", m->path, m->in_memory);
201	LOG (llevError, "Size: %dx%d Start: %d,%d\n", MAP_WIDTH (m), MAP_HEIGHT (m), MAP_ENTER_X (m), MAP_ENTER_Y (m));
202
203	if (m->msg != NULL)
204	LOG (llevError, "Message:\n%s", m->msg);
205
206	if (m->maplore != NULL)
207	LOG (llevError, "Lore:\n%s", m->maplore);
208
209	if (m->tmpname != NULL)
210	LOG (llevError, "Tmpname: %s\n", m->tmpname);
211
212	LOG (llevError, "Difficulty: %d\n", m->difficulty);
213	LOG (llevError, "Darkness: %d\n", m->darkness);
214	}
215
216	/*
217	* Prints out debug-information about all maps.
218	* This basically just goes through all the maps and calls
219	* dump_map on each one.
220	*/
221
222	void
223	dump_all_maps (void)
224	{
225	maptile *m;
226
227	for (m = first_map; m; m = m->next)
228	dump_map (m);
229	}
230		33
231	/* This rolls up wall, blocks_magic, blocks_view, etc, all into	34	/* This rolls up wall, blocks_magic, blocks_view, etc, all into
232	* one function that just returns a P_.. value (see map.h)	35	* one function that just returns a P_.. value (see map.h)
233	* it will also do map translation for tiled maps, returning	36	* it will also do map translation for tiled maps, returning
234	* new values into newmap, nx, and ny. Any and all of those	37	* new values into newmap, nx, and ny. Any and all of those
…		…
239	* don't expect to insert/remove anything from those spaces.	42	* don't expect to insert/remove anything from those spaces.
240	*/	43	*/
241	int	44	int
242	get_map_flags (maptile *oldmap, maptile **newmap, sint16 x, sint16 y, sint16 *nx, sint16 *ny)	45	get_map_flags (maptile *oldmap, maptile **newmap, sint16 x, sint16 y, sint16 *nx, sint16 *ny)
243	{	46	{
244	sint16 newx, newy;
245	int retval = 0;
246	maptile *mp;
247
248	newx = x;	47	sint16 newx = x;
249	newy = y;	48	sint16 newy = y;
250		49
251	mp = get_map_from_coord (oldmap, &newx, &newy);	50	maptile *mp = get_map_from_coord (oldmap, &newx, &newy);
252		51
253	if (!mp)	52	if (!mp)
254	return P_OUT_OF_MAP;	53	return P_OUT_OF_MAP;
255
256	if (mp != oldmap)
257	retval |= P_NEW_MAP;
258		54
259	if (newmap) *newmap = mp;	55	if (newmap) *newmap = mp;
260	if (nx) *nx = newx;	56	if (nx) *nx = newx;
261	if (ny) *ny = newy;	57	if (ny) *ny = newy;
262		58
263	return retval | mp->at (newx, newy).flags ();	59	return mp->at (newx, newy).flags () | (mp != oldmap ? P_NEW_MAP : 0);
264	}	60	}
265		61
266	/*	62	/*
267	* Returns true if the given coordinate is blocked except by the	63	* Returns true if the given coordinate is blocked except by the
268	* object passed is not blocking. This is used with	64	* object passed is not blocking. This is used with
…		…
276	* by the caller.	72	* by the caller.
277	*/	73	*/
278	int	74	int
279	blocked_link (object *ob, maptile *m, int sx, int sy)	75	blocked_link (object *ob, maptile *m, int sx, int sy)
280	{	76	{
281	object *tmp;
282	int mflags, blocked;
283
284	/* Make sure the coordinates are valid - they should be, as caller should	77	/* Make sure the coordinates are valid - they should be, as caller should
285	* have already checked this.	78	* have already checked this.
286	*/	79	*/
287	if (OUT_OF_REAL_MAP (m, sx, sy))	80	if (OUT_OF_REAL_MAP (m, sx, sy))
288	{	81	{
289	LOG (llevError, "blocked_link: Passed map, x, y coordinates outside of map\n");	82	LOG (llevError | logBacktrace, "blocked_link: Passed map, x, y coordinates outside of map\n");
290	return 1;	83	return 1;
291	}	84	}
292		85
293	/* Save some cycles - instead of calling get_map_flags(), just get the value	86	mapspace &ms = m->at (sx, sy);
294	* directly.
295	*/
296	mflags = m->at (sx, sy).flags ();
297		87
298	blocked = GET_MAP_MOVE_BLOCK (m, sx, sy);	88	int mflags = ms.flags ();
		89	int blocked = ms.move_block;
299		90
300	/* If space is currently not blocked by anything, no need to	91	/* If space is currently not blocked by anything, no need to
301	* go further. Not true for players - all sorts of special	92	* go further. Not true for players - all sorts of special
302	* things we need to do for players.	93	* things we need to do for players.
303	*/	94	*/
304	if (ob->type != PLAYER && !(mflags & P_IS_ALIVE) && (blocked == 0))	95	if (ob->type != PLAYER && !(mflags & P_IS_ALIVE) && blocked == 0)
305	return 0;	96	return 0;
306		97
307	/* if there isn't anytyhing alive on this space, and this space isn't	98	/* if there isn't anything alive on this space, and this space isn't
308	* otherwise blocked, we can return now. Only if there is a living	99	* otherwise blocked, we can return now. Only if there is a living
309	* creature do we need to investigate if it is part of this creature	100	* creature do we need to investigate if it is part of this creature
310	* or another. Likewise, only if something is blocking us do we	101	* or another. Likewise, only if something is blocking us do we
311	* need to investigate if there is a special circumstance that would	102	* need to investigate if there is a special circumstance that would
312	* let the player through (inventory checkers for example)	103	* let the player through (inventory checkers for example)
313	*/	104	*/
314	if (!(mflags & P_IS_ALIVE) && !OB_TYPE_MOVE_BLOCK (ob, blocked))	105	if (!(mflags & P_IS_ALIVE) && !OB_TYPE_MOVE_BLOCK (ob, blocked))
315	return 0;	106	return 0;
316		107
317	if (ob->head != NULL)
318	ob = ob->head;	108	ob = ob->head_ ();
319		109
320	/* We basically go through the stack of objects, and if there is	110	/* We basically go through the stack of objects, and if there is
321	* some other object that has NO_PASS or FLAG_ALIVE set, return	111	* some other object that has NO_PASS or FLAG_ALIVE set, return
322	* true. If we get through the entire stack, that must mean	112	* true. If we get through the entire stack, that must mean
323	* ob is blocking it, so return 0.	113	* ob is blocking it, so return 0.
324	*/	114	*/
325	for (tmp = GET_MAP_OB (m, sx, sy); tmp; tmp = tmp->above)	115	for (object *tmp = ms.top; tmp; tmp = tmp->below)
326	{	116	{
327		117	if (OB_MOVE_BLOCK (ob, tmp))
328	/* This must be before the checks below. Code for inventory checkers. */
329	if (tmp->type == CHECK_INV && OB_MOVE_BLOCK (ob, tmp))
330	{	118	{
331	/* If last_sp is set, the player/monster needs an object,	119	if (INVOKE_OBJECT (BLOCKED_MOVE, tmp, ob))
332	* so we check for it. If they don't have it, they can't	120	if (RESULT_INT (0))
333	* pass through this space.	121	return 1;
334	*/	122	else
335	if (tmp->last_sp)	123	continue;
		124
		125	if (tmp->type == CHECK_INV)
336	{	126	{
337	if (check_inv_recursive (ob, tmp) == NULL)	127	bool have = check_inv_recursive (ob, tmp);
		128
		129	// last_sp set means we block if we don't have.
		130	if (logical_xor (have, tmp->last_sp))
338	return 1;	131	return 1;
339	else	132	}
340	continue;	133	else if (tmp->type == T_MATCH)
		134	{
		135	// T_MATCH allows "entrance" iff the match is true
		136	// == blocks if the match fails
		137
		138	// we could have used an INVOKE_OBJECT, but decided against it, as we
		139	// assume that T_MATCH is relatively common.
		140	if (!match (tmp->slaying, ob, tmp, ob))
		141	return 1;
341	}	142	}
342	else	143	else
343	{	144	return 1; // unconditional block
344	/* In this case, the player must not have the object -	145
345	* if they do, they can't pass through.
346	*/
347	if (check_inv_recursive (ob, tmp) != NULL) /* player has object */
348	return 1;
349	else
350	continue;
351	}
352	} /* if check_inv */
353	else	146	} else {
354	{	147	// space does not block the ob, directly, but
355	/* Broke apart a big nasty if into several here to make	148	// anything alive that is not a door still
356	* this more readable. first check - if the space blocks	149	// blocks anything
357	* movement, can't move here.	150
358	* second - if a monster, can't move there, unles it is a	151	if (tmp->flag [FLAG_ALIVE]
359	* hidden dm	152	&& tmp->type != DOOR
360	*/	153	&& tmp->head_ () != ob) //TODO: maybe move these check up?
361	if (OB_MOVE_BLOCK (ob, tmp))
362	return 1;
363	if (QUERY_FLAG (tmp, FLAG_ALIVE) && tmp->head != ob && tmp != ob &&
364	tmp->type != DOOR && !(QUERY_FLAG (tmp, FLAG_WIZ) && tmp->contr->hidden))
365	return 1;	154	return 1;
366	}	155	}
367
368	}	156	}
		157
369	return 0;	158	return 0;
370	}	159	}
371		160
372
373	/*	161	/*
374	* Returns true if the given object can't fit in the given spot.	162	* Returns the blocking object if the given object can't fit in the given
375	* This is meant for multi space objects - for single space objecs,	163	* spot. This is meant for multi space objects - for single space objecs,
376	* just calling get_map_blocked and checking that against movement type	164	* just calling get_map_blocked and checking that against movement type
377	* of object. This function goes through all the parts of the	165	* of object. This function goes through all the parts of the multipart
378	* multipart object and makes sure they can be inserted.	166	* object and makes sure they can be inserted.
379	*	167	*
380	* While this doesn't call out of map, the get_map_flags does.	168	* While this doesn't call out of map, the get_map_flags does.
381	*	169	*
382	* This function has been used to deprecate arch_out_of_map -	170	* This function has been used to deprecate arch_out_of_map -
383	* this function also does that check, and since in most cases,	171	* this function also does that check, and since in most cases,
…		…
394	*	182	*
395	* Note this used to be arch_blocked, but with new movement	183	* Note this used to be arch_blocked, but with new movement
396	* code, we need to have actual object to check its move_type	184	* code, we need to have actual object to check its move_type
397	* against the move_block values.	185	* against the move_block values.
398	*/	186	*/
399	int	187	bool
400	ob_blocked (const object *ob, maptile *m, sint16 x, sint16 y)	188	object::blocked (maptile *m, int x, int y) const
401	{	189	{
402	archetype *tmp;	190	for (archetype *tmp = arch; tmp; tmp = (archetype *)tmp->more)
403	int flag;
404	maptile *m1;
405	sint16 sx, sy;
406
407	if (ob == NULL)
408	{
409	flag = get_map_flags (m, &m1, x, y, &sx, &sy);
410	if (flag & P_OUT_OF_MAP)
411	return P_OUT_OF_MAP;
412
413	/* don't have object, so don't know what types would block */
414	return m1->at (sx, sy).move_block;
415	}	191	{
		192	mapxy pos (m, x + tmp->x, y + tmp->y);
416		193
417	for (tmp = ob->arch; tmp; tmp = tmp->more)	194	if (!pos.normalise ())
418	{	195	return 1;
419	flag = get_map_flags (m, &m1, x + tmp->clone.x, y + tmp->clone.y, &sx, &sy);
420		196
421	if (flag & P_OUT_OF_MAP)	197	mapspace &ms = *pos;
422	return P_OUT_OF_MAP;	198
423	if (flag & P_IS_ALIVE)	199	if (ms.flags () & P_IS_ALIVE)
424	return P_IS_ALIVE;	200	return 1;
425		201
426	mapspace &ms = m1->at (sx, sy);	202	/* However, often ob doesn't have any move type
427		203	* (signifying non-moving objects)
428
429	/* find_first_free_spot() calls this function. However, often
430	* ob doesn't have any move type (when used to place exits)
431	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.	204	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.
432	*/	205	*/
433
434	if (ob->move_type == 0 && ms.move_block != MOVE_ALL)	206	if (!move_type && ms.move_block != MOVE_ALL)
435	continue;	207	continue;
436		208
437	/* Note it is intentional that we check ob - the movement type of the	209	/* Note it is intentional that we check ob - the movement type of the
438	* head of the object should correspond for the entire object.	210	* head of the object should correspond for the entire object.
439	*/	211	*/
440	if (OB_TYPE_MOVE_BLOCK (ob, ms.move_block))	212	if (ms.blocks (move_type))
441	return P_NO_PASS;	213	return 1;
442	}	214	}
443		215
444	return 0;	216	return 0;
445	}	217	}
446		218
447	/* When the map is loaded, load_object does not actually insert objects	219	//-GPL
448	* into inventory, but just links them. What this does is go through
449	* and insert them properly.
450	* The object 'container' is the object that contains the inventory.
451	* This is needed so that we can update the containers weight.
452	*/
453		220
454	void	221	void
455	fix_container (object *container)	222	maptile::set_object_flag (int flag, int value)
456	{	223	{
457	object *tmp = container->inv, *next;	224	if (!spaces)
		225	return;
458		226
459	container->inv = NULL;	227	for (mapspace *ms = spaces + size (); ms-- > spaces; )
460	while (tmp != NULL)	228	for (object *tmp = ms->bot; tmp; tmp = tmp->above)
461	{	229	tmp->flag [flag] = value;
462	next = tmp->below;
463	if (tmp->inv)
464	fix_container (tmp);
465	(void) insert_ob_in_ob (tmp, container);
466	tmp = next;
467	}
468	/* sum_weight will go through and calculate what all the containers are
469	* carrying.
470	*/
471	sum_weight (container);
472	}	230	}
		231
		232	void
		233	maptile::post_load_original ()
		234	{
		235	if (!spaces)
		236	return;
		237
		238	set_object_flag (FLAG_OBJ_ORIGINAL);
		239
		240	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		241	for (object *tmp = ms->bot; tmp; tmp = tmp->above)
		242	INVOKE_OBJECT (RESET, tmp);
		243	}
		244
		245	void
		246	maptile::post_load ()
		247	{
		248	#if 0
		249	if (!spaces)
		250	return;
		251
		252	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		253	for (object *tmp = ms->bot; tmp; tmp = tmp->above)
		254	; // nop
		255	#endif
		256	}
		257
		258	//+GPL
473		259
474	/* link_multipart_objects go through all the objects on the map looking	260	/* link_multipart_objects go through all the objects on the map looking
475	* for objects whose arch says they are multipart yet according to the	261	* for objects whose arch says they are multipart yet according to the
476	* info we have, they only have the head (as would be expected when	262	* info we have, they only have the head (as would be expected when
477	* they are saved). We do have to look for the old maps that did save	263	* they are saved).
478	* the more sections and not re-add sections for them.
479	*/	264	*/
480		265	void
481	static void	266	maptile::link_multipart_objects ()
482	link_multipart_objects (maptile *m)
483	{	267	{
484	int x, y;	268	if (!spaces)
485	object *tmp, *op, *last, *above;	269	return;
486	archetype *at;
487		270
488	for (x = 0; x < MAP_WIDTH (m); x++)	271	for (mapspace *ms = spaces + size (); ms-- > spaces; )
489	for (y = 0; y < MAP_HEIGHT (m); y++)	272	{
490	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = above)	273	object *op = ms->bot;
		274	while (op)
491	{	275	{
492	above = tmp->above;
493
494	/* already multipart - don't do anything more */	276	/* already multipart - don't do anything more */
495	if (tmp->head || tmp->more)	277	if (op->head_ () == op && !op->more && op->arch->more)
496	continue;
497
498	/* If there is nothing more to this object, this for loop
499	* won't do anything.
500	*/
501	for (at = tmp->arch->more, last = tmp; at != NULL; at = at->more, last = op)
502	{	278	{
503	op = arch_to_object (at);	279	op->remove ();
		280	op->expand_tail ();
504		281
505	/* update x,y coordinates */	282	// FIXME: INS_ON_TOP is just a workaround for the pentagram vs.
506	op->x += tmp->x;	283	// multi-tile monster bug, where INS_ABOVE_FLOOR_ONLY put the monsters
507	op->y += tmp->y;	284	// below the pentagrams... hopefully INS_ON_TOP doesn't break anything
508	op->head = tmp;	285	insert (op, op->x, op->y, 0, INS_NO_MERGE | INS_ON_TOP | INS_NO_WALK_ON);
509	op->map = m;	286
510	last->more = op;	287	op = ms->bot; // we are mutating the mapspace too much with INS_ON_TOP
511	op->name = tmp->name;	288	// so we have to reset the iteration through the mapspace
512	op->title = tmp->title;
513	/* we could link all the parts onto tmp, and then just
514	* call insert_ob_in_map once, but the effect is the same,
515	* as insert_ob_in_map will call itself with each part, and
516	* the coding is simpler to just to it here with each part.
517	*/	289	}
518	insert_ob_in_map (op, op->map, tmp, INS_NO_MERGE | INS_ABOVE_FLOOR_ONLY | INS_NO_WALK_ON);	290	else
519	} /* for at = tmp->arch->more */	291	op = op->above;
520	} /* for objects on this space */	292	}
		293	}
521	}	294	}
		295
		296	//-GPL
522		297
523	/*	298	/*
524	* Loads (ands parses) the objects into a given map from the specified	299	* Loads (ands parses) the objects into a given map from the specified
525	* file pointer.	300	* file pointer.
526	* mapflags is the same as we get with load_original_map
527	*/	301	*/
528	void	302	bool
529	load_objects (maptile *m, object_thawer & fp, int mapflags)	303	maptile::_load_objects (object_thawer &f)
530	{	304	{
531	int i, j;	305	for (;;)
532	int unique;
533	object *op, *prev = NULL, *last_more = NULL, *otmp;
534
535	op = object::create ();
536	op->map = m; /* To handle buttons correctly */
537
538	while ((i = load_object (fp, op, mapflags)))
539	{	306	{
540	/* if the archetype for the object is null, means that we	307	coroapi::cede_to_tick (); // cede once in a while
541	* got an invalid object. Don't do anything with it - the game	308
542	* or editor will not be able to do anything with it either.	309	switch (f.kw)
543	*/
544	if (op->arch == NULL)
545	{	310	{
546	LOG (llevDebug, "Discarding object without arch: %s\n", op->name ? (const char *) op->name : "(null)");	311	case KW_arch:
		312	if (object *op = object::read (f, this))
		313	{
		314	// TODO: why?
		315	if (op->inv)
		316	op->update_weight ();
		317
		318	if (IN_RANGE_EXC (op->x, 0, width) && IN_RANGE_EXC (op->y, 0, height))
		319	{
		320	// we insert manually because
		321	// a) its way faster
		322	// b) we remove manually, too, and there are good reasons for that
		323	// c) it's correct
		324	mapspace &ms = at (op->x, op->y);
		325
		326	op->flag [FLAG_REMOVED] = false;
		327
		328	op->above = 0;
		329	op->below = ms.top;
		330
		331	*(ms.top ? &ms.top->above : &ms.bot) = op;
		332
		333	ms.top = op;
		334	ms.flags_ = 0;
		335	}
		336	else
		337	{
		338	f.parse_warn (format ("object %s out of range", op->debug_desc ()));
		339	op->destroy ();
		340	}
		341	}
		342
547	continue;	343	continue;
548	}
549		344
550	switch (i)
551	{
552	case LL_NORMAL:
553	/* if we are loading an overlay, put the floors on the bottom */
554	if ((QUERY_FLAG (op, FLAG_IS_FLOOR) || QUERY_FLAG (op, FLAG_OVERLAY_FLOOR)) && mapflags & MAP_OVERLAY)
555	insert_ob_in_map (op, m, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ABOVE_FLOOR_ONLY | INS_MAP_LOAD);
556	else
557	insert_ob_in_map (op, m, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ON_TOP | INS_MAP_LOAD);
558
559	if (op->inv)
560	sum_weight (op);
561
562	prev = op, last_more = op;
563	break;
564
565	case LL_MORE:	345	case KW_EOF:
566	insert_ob_in_map (op, m, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ABOVE_FLOOR_ONLY);	346	return true;
567	op->head = prev, last_more->more = op, last_more = op;	347
		348	default:
		349	if (!f.parse_error ("map file"))
		350	return false;
568	break;	351	break;
569	}	352	}
570		353
571	if (mapflags & MAP_STYLE)	354	f.next ();
572	remove_from_active_list (op);
573
574	op = object::create ();
575	op->map = m;
576	}
577
578	for (i = 0; i < m->width; i++)
579	{	355	}
580	for (j = 0; j < m->height; j++)	356
		357	return true;
		358	}
		359
		360	void
		361	maptile::activate ()
		362	{
		363	if (spaces)
		364	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		365	for (object *op = ms->bot; op; op = op->above)
		366	op->activate_recursive ();
		367	}
		368
		369	void
		370	maptile::deactivate ()
		371	{
		372	if (spaces)
		373	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		374	for (object *op = ms->bot; op; op = op->above)
		375	op->deactivate_recursive ();
		376	}
		377
		378	bool
		379	maptile::_save_objects (object_freezer &f, int flags)
		380	{
		381	coroapi::cede_to_tick ();
		382
		383	if (flags & IO_HEADER)
		384	_save_header (f);
		385
		386	if (!spaces)
		387	return false;
		388
		389	for (int i = 0; i < size (); ++i)
		390	{
		391	bool unique = 0;
		392
		393	for (object *op = spaces [i].bot; op; op = op->above)
581	{	394	{
582	unique = 0;	395	unique |= op->flag [FLAG_UNIQUE] && op->flag [FLAG_IS_FLOOR];
583	/* check for unique items, or unique squares */	396
584	for (otmp = GET_MAP_OB (m, i, j); otmp; otmp = otmp->above)	397	if (expect_false (!op->can_map_save ()))
		398	continue;
		399
		400	if (expect_false (unique || op->flag [FLAG_UNIQUE]))
585	{	401	{
586	if (QUERY_FLAG (otmp, FLAG_UNIQUE) || QUERY_FLAG (otmp, FLAG_OBJ_SAVE_ON_OVL))	402	if (flags & IO_UNIQUES)
587	unique = 1;	403	op->write (f);
588
589	if (!(mapflags & (MAP_OVERLAY | MAP_PLAYER_UNIQUE) || unique))
590	SET_FLAG (otmp, FLAG_OBJ_ORIGINAL);
591	}	404	}
		405	else if (expect_true (flags & IO_OBJECTS))
		406	op->write (f);
592	}	407	}
593	}	408	}
594		409
595	op->destroy ();	410	coroapi::cede_to_tick ();
596	link_multipart_objects (m);
597	}
598		411
599	/* This saves all the objects on the map in a non destructive fashion.	412	return true;
600	* Modified by MSW 2001-07-01 to do in a single pass - reduces code,	413	}
601	* and we only save the head of multi part objects - this is needed	414
602	* in order to do map tiling properly.	415	bool
		416	maptile::_save_objects (const char *path, int flags)
		417	{
		418	object_freezer freezer;
		419
		420	if (!_save_objects (freezer, flags))
		421	return false;
		422
		423	return freezer.save (path);
		424	}
		425
		426	void
		427	maptile::init ()
		428	{
		429	in_memory = MAP_SWAPPED;
		430
		431	/* The maps used to pick up default x and y values from the
		432	* map archetype. Mimic that behaviour.
603	*/	433	*/
604	void	434	width = 16;
605	save_objects (maptile *m, object_freezer & fp, object_freezer & fp2, int flag)	435	height = 16;
606	{	436	timeout = 300;
607	int i, j = 0, unique = 0;	437	max_items = MAX_ITEM_PER_ACTION;
608	object *op;	438	max_volume = 2000000; // 2m³
609		439	reset_timeout = 0;
610	/* first pass - save one-part objects */	440	enter_x = 0;
611	for (i = 0; i < MAP_WIDTH (m); i++)	441	enter_y = 0;
612	for (j = 0; j < MAP_HEIGHT (m); j++)
613	{
614	unique = 0;
615	for (op = GET_MAP_OB (m, i, j); op; op = op->above)
616	{
617	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))
618	unique = 1;
619
620	if (op->type == PLAYER)
621	continue;
622
623	if (op->head || op->owner)
624	continue;
625
626	if (unique || QUERY_FLAG (op, FLAG_UNIQUE))
627	save_object (fp2, op, 3);
628	else if (flag == 0 || (flag == 2 && (!QUERY_FLAG (op, FLAG_OBJ_ORIGINAL) && !QUERY_FLAG (op, FLAG_UNPAID))))
629	save_object (fp, op, 3);
630	}
631	}
632	}	442	}
633		443
634	maptile::maptile ()	444	maptile::maptile ()
635	{	445	{
636	in_memory = MAP_SWAPPED;	446	init ();
637	/* The maps used to pick up default x and y values from the
638	* map archetype. Mimic that behaviour.
639	*/
640	MAP_WIDTH (this) = 16;
641	MAP_HEIGHT (this) = 16;
642	MAP_RESET_TIMEOUT (this) = 0;
643	MAP_TIMEOUT (this) = 300;
644	MAP_ENTER_X (this) = 0;
645	MAP_ENTER_Y (this) = 0;
646	/*set part to -1 indicating conversion to weather map not yet done */
647	MAP_WORLDPARTX (this) = -1;
648	MAP_WORLDPARTY (this) = -1;
649	}	447	}
650		448
651	/*	449	maptile::maptile (int w, int h)
652	* Allocates, initialises, and returns a pointer to a maptile.
653	* Modified to no longer take a path option which was not being
654	* used anyways. MSW 2001-07-01
655	*/
656	maptile *
657	get_linked_map (void)
658	{	450	{
659	maptile *mp, *map = new maptile;	451	init ();
660		452
661	for (mp = first_map; mp && mp->next; mp = mp->next);	453	width = w;
		454	height = h;
662		455
663	if (mp == NULL)	456	alloc ();
664	first_map = map;
665	else
666	mp->next = map;
667
668	return map;
669	}	457	}
670		458
671	/*	459	/*
672	* Allocates the arrays contained in a maptile.	460	* Allocates the arrays contained in a maptile.
673	* This basically allocates the dynamic array of spaces for the	461	* This basically allocates the dynamic array of spaces for the
674	* map.	462	* map.
675	*/	463	*/
676	void	464	void
677	maptile::allocate ()	465	maptile::alloc ()
678	{	466	{
679	in_memory = MAP_IN_MEMORY;
680
681	/* Log this condition and free the storage. We could I suppose
682	* realloc, but if the caller is presuming the data will be intact,
683	* that is their poor assumption.
684	*/
685	if (spaces)	467	if (spaces)
686	{
687	LOG (llevError, "allocate_map called with already allocated map (%s)\n", path);
688	free (spaces);
689	}
690
691	spaces = (mapspace *)
692	calloc (1, width * height * sizeof (mapspace));
693
694	if (!spaces)
695	fatal (OUT_OF_MEMORY);
696	}
697
698	/* Create and returns a map of the specific size. Used
699	* in random map code and the editor.
700	*/
701	maptile *
702	get_empty_map (int sizex, int sizey)
703	{
704	maptile *m = get_linked_map ();
705
706	m->width = sizex;
707	m->height = sizey;
708	m->in_memory = MAP_SWAPPED;
709	m->allocate ();
710
711	return m;	468	return;
		469
		470	spaces = salloc0<mapspace> (size ());
712	}	471	}
		472
		473	//+GPL
713		474
714	/* Takes a string from a map definition and outputs a pointer to the array of shopitems	475	/* Takes a string from a map definition and outputs a pointer to the array of shopitems
715	* corresponding to that string. Memory is allocated for this, it must be freed	476	* corresponding to that string. Memory is allocated for this, it must be freed
716	* at a later date.	477	* at a later date.
717	* Called by parse_map_headers below.	478	* Called by parse_map_headers below.
718	*/	479	*/
719
720	static shopitems *	480	static shopitems *
721	parse_shop_string (const char *input_string)	481	parse_shop_string (const char *input_string)
722	{	482	{
723	char *shop_string, *p, *q, *next_semicolon, *next_colon;	483	char *shop_string, *p, *q, *next_semicolon, *next_colon;
724	shopitems *items = NULL;	484	shopitems *items = NULL;
…		…
733	p = strchr (p, ';');	493	p = strchr (p, ';');
734	number_of_entries++;	494	number_of_entries++;
735	if (p)	495	if (p)
736	p++;	496	p++;
737	}	497	}
		498
738	p = shop_string;	499	p = shop_string;
739	strip_endline (p);	500	strip_endline (p);
740	items = new shopitems[number_of_entries + 1];	501	items = new shopitems[number_of_entries + 1];
741	for (i = 0; i < number_of_entries; i++)	502	for (i = 0; i < number_of_entries; i++)
742	{	503	{
743	if (!p)	504	if (!p)
744	{	505	{
745	LOG (llevError, "parse_shop_string: I seem to have run out of string, that shouldn't happen.\n");	506	LOG (llevError, "parse_shop_string: I seem to have run out of string, that shouldn't happen.\n");
746	break;	507	break;
747	}	508	}
		509
748	next_semicolon = strchr (p, ';');	510	next_semicolon = strchr (p, ';');
749	next_colon = strchr (p, ':');	511	next_colon = strchr (p, ':');
750	/* if there is a stregth specified, figure out what it is, we'll need it soon. */	512	/* if there is a stregth specified, figure out what it is, we'll need it soon. */
751	if (next_colon && (!next_semicolon || next_colon < next_semicolon))	513	if (next_colon && (!next_semicolon || next_colon < next_semicolon))
752	items[i].strength = atoi (strchr (p, ':') + 1);	514	items[i].strength = atoi (strchr (p, ':') + 1);
…		…
779	* the next entry while we're at it, better print a warning	541	* the next entry while we're at it, better print a warning
780	*/	542	*/
781	LOG (llevError, "invalid type %s defined in shopitems in string %s\n", p, input_string);	543	LOG (llevError, "invalid type %s defined in shopitems in string %s\n", p, input_string);
782	}	544	}
783	}	545	}
		546
784	items[i].index = number_of_entries;	547	items[i].index = number_of_entries;
785	if (next_semicolon)	548	if (next_semicolon)
786	p = ++next_semicolon;	549	p = ++next_semicolon;
787	else	550	else
788	p = NULL;	551	p = NULL;
789	}	552	}
		553
790	free (shop_string);	554	free (shop_string);
791	return items;	555	return items;
792	}	556	}
793		557
794	/* opposite of parse string, this puts the string that was originally fed in to	558	/* opposite of parse string, this puts the string that was originally fed in to
795	* the map (or something equivilent) into output_string. */	559	* the map (or something equivilent) into output_string. */
796	static void	560	static const char *
797	print_shop_string (maptile *m, char *output_string)	561	print_shop_string (maptile *m)
798	{	562	{
799	int i;	563	static dynbuf_text buf; buf.clear ();
800	char tmp[MAX_BUF];
801		564
802	strcpy (output_string, "");
803	for (i = 0; i < m->shopitems[0].index; i++)	565	for (int i = 0; i < m->shopitems[0].index; i++)
804	{	566	{
805	if (m->shopitems[i].typenum)	567	if (m->shopitems[i].typenum)
806	{	568	{
807	if (m->shopitems[i].strength)	569	if (m->shopitems[i].strength)
808	{
809	sprintf (tmp, "%s:%d;", m->shopitems[i].name, m->shopitems[i].strength);	570	buf.printf ("%s:%d;", m->shopitems[i].name, m->shopitems[i].strength);
810	}
811	else	571	else
812	sprintf (tmp, "%s;", m->shopitems[i].name);	572	buf.printf ("%s;", m->shopitems[i].name);
813	}	573	}
814	else	574	else
815	{	575	{
816	if (m->shopitems[i].strength)	576	if (m->shopitems[i].strength)
817	{
818	sprintf (tmp, "*:%d;", m->shopitems[i].strength);	577	buf.printf ("*:%d;", m->shopitems[i].strength);
819	}
820	else	578	else
821	sprintf (tmp, "*");	579	buf.printf ("*");
822	}	580	}
823	strcat (output_string, tmp);
824	}	581	}
		582
		583	return buf;
825	}	584	}
		585
		586	//-GPL
826		587
827	/* This loads the header information of the map. The header	588	/* This loads the header information of the map. The header
828	* contains things like difficulty, size, timeout, etc.	589	* contains things like difficulty, size, timeout, etc.
829	* this used to be stored in the map object, but with the	590	* this used to be stored in the map object, but with the
830	* addition of tiling, fields beyond that easily named in an	591	* addition of tiling, fields beyond that easily named in an
…		…
832	* put all the stuff in the map object so that names actually make	593	* put all the stuff in the map object so that names actually make
833	* sense.	594	* sense.
834	* This could be done in lex (like the object loader), but I think	595	* This could be done in lex (like the object loader), but I think
835	* currently, there are few enough fields this is not a big deal.	596	* currently, there are few enough fields this is not a big deal.
836	* MSW 2001-07-01	597	* MSW 2001-07-01
837	* return 0 on success, 1 on failure.
838	*/	598	*/
839		599	bool
840	static int	600	maptile::_load_header (object_thawer &thawer)
841	load_map_header (object_thawer & fp, maptile *m)
842	{	601	{
843	char buf[HUGE_BUF], msgbuf[HUGE_BUF], maplorebuf[HUGE_BUF], *key = NULL, *value, *end;	602	for (;;)
844	int msgpos = 0;
845	int maplorepos = 0;
846
847	while (fgets (buf, HUGE_BUF, fp) != NULL)
848	{	603	{
849	buf[HUGE_BUF - 1] = 0;	604	switch (thawer.kw)
850	key = buf;
851
852	while (isspace (*key))
853	key++;
854
855	if (*key == 0)
856	continue; /* empty line */
857
858	value = strchr (key, ' ');
859
860	if (!value)
861	{	605	{
862	if ((end = strchr (key, '\n')))	606	case KW_msg:
863	*end = 0;	607	thawer.get_ml (KW_endmsg, msg);
		608	break;
		609
		610	case KW_lore: // CF+ extension
		611	thawer.get_ml (KW_endlore, maplore);
		612	break;
		613
		614	case KW_maplore:
		615	thawer.get_ml (KW_endmaplore, maplore);
		616	break;
		617
		618	case KW_arch:
		619	if (strcmp (thawer.get_str (), "map"))
		620	LOG (llevError, "%s: loading map and got a non 'arch map' line (arch %s), skipping.\n", &path, thawer.get_str ());
		621	break;
		622
		623	case KW_oid:
		624	thawer.get (this, thawer.get_sint32 ());
		625	break;
		626
		627	case KW_file_format_version: break; // nop
		628
		629	case KW_name: thawer.get (name); break;
		630	case KW_attach: thawer.get (attach); break;
		631	case KW_reset_time: thawer.get (reset_time); break;
		632	case KW_shopgreed: thawer.get (shopgreed); break;
		633	case KW_shopmin: thawer.get (shopmin); break;
		634	case KW_shopmax: thawer.get (shopmax); break;
		635	case KW_shoprace: thawer.get (shoprace); break;
		636	case KW_outdoor: thawer.get (outdoor); break;
		637
		638	case KW_per_player: thawer.get (per_player); break;
		639	case KW_per_party: thawer.get (per_party); break;
		640	case KW_no_reset: thawer.get (no_reset); break;
		641	case KW_no_drop: thawer.get (no_drop); break;
		642
		643	case KW_region: default_region = region::find (thawer.get_str ()); break;
		644	case KW_shopitems: shopitems = parse_shop_string (thawer.get_str ()); break;
		645
		646	// old names new names
		647	case KW_hp: case KW_enter_x: thawer.get (enter_x); break;
		648	case KW_sp: case KW_enter_y: thawer.get (enter_y); break;
		649	case KW_x: case KW_width: thawer.get (width); break;
		650	case KW_y: case KW_height: thawer.get (height); break;
		651	case KW_weight: case KW_reset_timeout: thawer.get (reset_timeout); break;
		652	case KW_value: case KW_swap_time: thawer.get (timeout); break;
		653	case KW_level: case KW_difficulty: thawer.get (difficulty); difficulty = clamp (difficulty, 1, settings.max_level); break;
		654	case KW_invisible: case KW_darkness: thawer.get (darkness); break;
		655	case KW_stand_still: case KW_fixed_resettime: thawer.get (fixed_resettime); break;
		656
		657	case KW_tile_path_1: thawer.get (tile_path [0]); break;
		658	case KW_tile_path_2: thawer.get (tile_path [1]); break;
		659	case KW_tile_path_3: thawer.get (tile_path [2]); break;
		660	case KW_tile_path_4: thawer.get (tile_path [3]); break;
		661
		662	case KW_ERROR:
		663	set_key_text (thawer.kw_str, thawer.value);
		664	break;
		665
		666	case KW_end:
		667	thawer.next ();
		668	return true;
		669
		670	default:
		671	if (!thawer.parse_error ("map"))
		672	return false;
		673	break;
864	}	674	}
865	else
866	{
867	*value = 0;
868	value++;
869	end = strchr (value, '\n');
870		675
871	while (isspace (*value))	676	thawer.next ();
872	{
873	value++;
874
875	if (*value == '\0' || value == end)
876	{
877	/* Nothing but spaces. */
878	value = NULL;
879	break;
880	}
881	}
882	}
883
884	if (!end)
885	{
886	LOG (llevError, "Error loading map header - did not find a newline - perhaps file is truncated? Buf=%s\n", buf);
887	return 1;
888	}
889
890	/* key is the field name, value is what it should be set
891	* to. We've already done the work to null terminate key,
892	* and strip off any leading spaces for both of these.
893	* We have not touched the newline at the end of the line -
894	* these are needed for some values. the end pointer
895	* points to the first of the newlines.
896	* value could be NULL! It would be easy enough to just point
897	* this to "" to prevent cores, but that would let more errors slide
898	* through.
899	*
900	* First check for entries that do not use the value parameter, then
901	* validate that value is given and check for the remaining entries
902	* that use the parameter.
903	*/
904
905	if (!strcmp (key, "msg"))
906	{
907	while (fgets (buf, HUGE_BUF, fp) != NULL)
908	{
909	if (!strcmp (buf, "endmsg\n"))
910	break;
911	else
912	{
913	/* slightly more efficient than strcat */
914	strcpy (msgbuf + msgpos, buf);
915	msgpos += strlen (buf);
916	}
917	}
918	/* There are lots of maps that have empty messages (eg, msg/endmsg
919	* with nothing between). There is no reason in those cases to
920	* keep the empty message. Also, msgbuf contains garbage data
921	* when msgpos is zero, so copying it results in crashes
922	*/
923	if (msgpos != 0)
924	m->msg = strdup (msgbuf);
925	}
926	else if (!strcmp (key, "maplore"))
927	{
928	while (fgets (buf, HUGE_BUF, fp) != NULL)
929	{
930	if (!strcmp (buf, "endmaplore\n"))
931	break;
932	else
933	{
934	/* slightly more efficient than strcat */
935	strcpy (maplorebuf + maplorepos, buf);
936	maplorepos += strlen (buf);
937	}
938	}
939	if (maplorepos != 0)
940	m->maplore = strdup (maplorebuf);
941	}
942	else if (!strcmp (key, "end"))
943	{
944	break;
945	}
946	else if (value == NULL)
947	{
948	LOG (llevError, "Got '%s' line without parameter in map header\n", key);
949	}
950	else if (!strcmp (key, "arch"))
951	{
952	/* This is an oddity, but not something we care about much. */
953	if (strcmp (value, "map\n"))
954	LOG (llevError, "loading map and got a non 'arch map' line(%s %s)?\n", key, value);
955	}
956	else if (!strcmp (key, "name"))
957	{
958	*end = 0;
959	m->name = strdup (value);
960	}
961	/* first strcmp value on these are old names supported
962	* for compatibility reasons. The new values (second) are
963	* what really should be used.
964	*/
965	else if (!strcmp (key, "oid"))
966	fp.get (m, atoi (value));
967	else if (!strcmp (key, "attach"))
968	m->attach = value;
969	else if (!strcmp (key, "hp") || !strcmp (key, "enter_x"))
970	m->enter_x = atoi (value);
971	else if (!strcmp (key, "sp") || !strcmp (key, "enter_y"))
972	m->enter_y = atoi (value);
973	else if (!strcmp (key, "x") || !strcmp (key, "width"))
974	m->width = atoi (value);
975	else if (!strcmp (key, "y") || !strcmp (key, "height"))
976	m->height = atoi (value);
977	else if (!strcmp (key, "weight") || !strcmp (key, "reset_timeout"))
978	m->reset_timeout = atoi (value);
979	else if (!strcmp (key, "value") || !strcmp (key, "swap_time"))
980	m->timeout = atoi (value);
981	else if (!strcmp (key, "level") || !strcmp (key, "difficulty"))
982	m->difficulty = clamp (atoi (value), 1, settings.max_level);
983	else if (!strcmp (key, "invisible") || !strcmp (key, "darkness"))
984	m->darkness = atoi (value);
985	else if (!strcmp (key, "stand_still") || !strcmp (key, "fixed_resettime"))
986	m->fixed_resettime = atoi (value);
987	else if (!strcmp (key, "unique"))
988	m->unique = atoi (value);
989	else if (!strcmp (key, "template"))
990	m->templatemap = atoi (value);
991	else if (!strcmp (key, "region"))
992	m->region = get_region_by_name (value);
993	else if (!strcmp (key, "shopitems"))
994	{
995	*end = 0;
996	m->shopitems = parse_shop_string (value);
997	}
998	else if (!strcmp (key, "shopgreed"))
999	m->shopgreed = atof (value);
1000	else if (!strcmp (key, "shopmin"))
1001	m->shopmin = atol (value);
1002	else if (!strcmp (key, "shopmax"))
1003	m->shopmax = atol (value);
1004	else if (!strcmp (key, "shoprace"))
1005	{
1006	*end = 0;
1007	m->shoprace = strdup (value);
1008	}
1009	else if (!strcmp (key, "outdoor"))
1010	m->outdoor = atoi (value);
1011	else if (!strcmp (key, "temp"))
1012	m->temp = atoi (value);
1013	else if (!strcmp (key, "pressure"))
1014	m->pressure = atoi (value);
1015	else if (!strcmp (key, "humid"))
1016	m->humid = atoi (value);
1017	else if (!strcmp (key, "windspeed"))
1018	m->windspeed = atoi (value);
1019	else if (!strcmp (key, "winddir"))
1020	m->winddir = atoi (value);
1021	else if (!strcmp (key, "sky"))
1022	m->sky = atoi (value);
1023	else if (!strcmp (key, "nosmooth"))
1024	m->nosmooth = atoi (value);
1025	else if (!strncmp (key, "tile_path_", 10))
1026	{
1027	int tile = atoi (key + 10);
1028
1029	if (tile < 1 || tile > 4)
1030	{
1031	LOG (llevError, "load_map_header: tile location %d out of bounds (%s)\n", tile, m->path);
1032	}
1033	else
1034	{
1035	char *path;
1036
1037	*end = 0;
1038
1039	if (m->tile_path[tile - 1])
1040	{
1041	LOG (llevError, "load_map_header: tile location %d duplicated (%s)\n", tile, m->path);
1042	free (m->tile_path[tile - 1]);
1043	m->tile_path[tile - 1] = NULL;
1044	}
1045
1046	if (check_path (value, 1) != -1)
1047	{
1048	/* The unadorned path works. */
1049	path = value;
1050	}
1051	else
1052	{
1053	/* Try again; it could be a relative exit. */
1054
1055	path = path_combine_and_normalize (m->path, value);
1056
1057	if (check_path (path, 1) == -1)
1058	{
1059	LOG (llevError, "get_map_header: Bad tile path %s %s\n", m->path, value);
1060	path = NULL;
1061	}
1062	}
1063
1064	if (editor)
1065	{
1066	/* Use the value as in the file. */
1067	m->tile_path[tile - 1] = strdup (value);
1068	}
1069	else if (path != NULL)
1070	{
1071	/* Use the normalized value. */
1072	m->tile_path[tile - 1] = strdup (path);
1073	}
1074	} /* end if tile direction (in)valid */
1075	}
1076	else
1077	LOG (llevError, "Got unknown value in map header: %s %s\n", key, value);
1078	}
1079
1080	if (!key || strcmp (key, "end"))
1081	{	677	}
1082	LOG (llevError, "Got premature eof on map header!\n");
1083	return 1;
1084	}
1085		678
1086	return 0;	679	abort ();
1087	}	680	}
1088		681
1089	/*	682	//+GPL
1090	* Opens the file "filename" and reads information about the map
1091	* from the given file, and stores it in a newly allocated
1092	* maptile. A pointer to this structure is returned, or NULL on failure.
1093	* flags correspond to those in map.h. Main ones used are
1094	* MAP_PLAYER_UNIQUE, in which case we don't do any name changes, and
1095	* MAP_BLOCK, in which case we block on this load. This happens in all
1096	* cases, no matter if this flag is set or not.
1097	* MAP_STYLE: style map - don't add active objects, don't add to server
1098	* managed map list.
1099	*/
1100
1101	maptile *
1102	load_original_map (const char *filename, int flags)
1103	{
1104	maptile *m;
1105	char pathname[MAX_BUF];
1106
1107	if (flags & MAP_PLAYER_UNIQUE)
1108	strcpy (pathname, filename);
1109	else if (flags & MAP_OVERLAY)
1110	strcpy (pathname, create_overlay_pathname (filename));
1111	else
1112	strcpy (pathname, create_pathname (filename));
1113
1114	LOG (llevDebug, "load_original_map(%x): %s (%s)\n", flags, filename, pathname);
1115
1116	object_thawer thawer (pathname);
1117
1118	if (!thawer)
1119	return 0;
1120
1121	m = get_linked_map ();
1122
1123	strcpy (m->path, filename);
1124	if (load_map_header (thawer, m))
1125	{
1126	LOG (llevError, "Error loading map header for %s, flags=%d\n", filename, flags);
1127	delete_map (m);
1128	return 0;
1129	}
1130
1131	m->allocate ();
1132
1133	m->in_memory = MAP_LOADING;
1134	load_objects (m, thawer, flags & (MAP_BLOCK | MAP_STYLE));
1135
1136	m->in_memory = MAP_IN_MEMORY;
1137	if (!MAP_DIFFICULTY (m))
1138	MAP_DIFFICULTY (m) = calculate_difficulty (m);
1139	set_map_reset_time (m);
1140	m->instantiate ();
1141	return (m);
1142	}
1143
1144	/*
1145	* Loads a map, which has been loaded earlier, from file.
1146	* Return the map object we load into (this can change from the passed
1147	* option if we can't find the original map)
1148	*/
1149
1150	static maptile *
1151	load_temporary_map (maptile *m)
1152	{
1153	char buf[MAX_BUF];
1154
1155	if (!m->tmpname)
1156	{
1157	LOG (llevError, "No temporary filename for map %s\n", m->path);
1158	strcpy (buf, m->path);
1159	delete_map (m);
1160	m = load_original_map (buf, 0);
1161	if (m == NULL)
1162	return NULL;
1163	fix_auto_apply (m); /* Chests which open as default */
1164	return m;
1165	}
1166
1167	object_thawer thawer (m->tmpname);
1168
1169	if (!thawer)
1170	{
1171	strcpy (buf, m->path);
1172	delete_map (m);
1173	m = load_original_map (buf, 0);
1174	if (!m)
1175	return NULL;
1176	fix_auto_apply (m); /* Chests which open as default */
1177	return m;
1178	}
1179
1180	if (load_map_header (thawer, m))
1181	{
1182	LOG (llevError, "Error loading map header for %s (%s)\n", m->path, m->tmpname);
1183	delete_map (m);
1184	m = load_original_map (m->path, 0);
1185	return NULL;
1186	}
1187
1188	m->allocate ();
1189
1190	m->in_memory = MAP_LOADING;
1191	load_objects (m, thawer, 0);
1192
1193	m->in_memory = MAP_IN_MEMORY;
1194	INVOKE_MAP (SWAPIN, m);
1195	return m;
1196	}
1197
1198	/*
1199	* Loads a map, which has been loaded earlier, from file.
1200	* Return the map object we load into (this can change from the passed
1201	* option if we can't find the original map)
1202	*/
1203
1204	maptile *
1205	load_overlay_map (const char *filename, maptile *m)
1206	{
1207	char pathname[MAX_BUF];
1208
1209	strcpy (pathname, create_overlay_pathname (filename));
1210
1211	object_thawer thawer (pathname);
1212
1213	if (!thawer)
1214	return m;
1215
1216	if (load_map_header (thawer, m))
1217	{
1218	LOG (llevError, "Error loading map header for overlay %s (%s)\n", m->path, pathname);
1219	delete_map (m);
1220	m = load_original_map (m->path, 0);
1221	return 0;
1222	}
1223	/*m->allocate ();*/
1224
1225	m->in_memory = MAP_LOADING;
1226	load_objects (m, thawer, MAP_OVERLAY);
1227
1228	m->in_memory = MAP_IN_MEMORY;
1229	return m;
1230	}
1231		683
1232	/******************************************************************************	684	/******************************************************************************
1233	* This is the start of unique map handling code	685	* This is the start of unique map handling code
1234	*****************************************************************************/	686	*****************************************************************************/
1235		687
1236	/* This goes through map 'm' and removed any unique items on the map. */	688	/* This goes through the maptile and removed any unique items on the map. */
1237	static void	689	void
1238	delete_unique_items (maptile *m)	690	maptile::clear_unique_items ()
1239	{	691	{
1240	int i, j, unique;	692	for (int i = 0; i < size (); ++i)
1241	object *op, *next;
1242
1243	for (i = 0; i < MAP_WIDTH (m); i++)
1244	for (j = 0; j < MAP_HEIGHT (m); j++)
1245	{	693	{
1246	unique = 0;	694	int unique = 0;
		695	for (object *op = spaces [i].bot; op; )
		696	{
		697	object *above = op->above;
1247		698
1248	for (op = GET_MAP_OB (m, i, j); op; op = next)	699	if (op->flag [FLAG_IS_FLOOR] && op->flag [FLAG_UNIQUE])
		700	unique = 1;
		701
		702	if (op->head_ () == op && (op->flag [FLAG_UNIQUE] || unique))
		703	op->destroy ();
		704
		705	op = above;
		706	}
		707	}
		708	}
		709
		710	//-GPL
		711
		712	bool
		713	maptile::_save_header (object_freezer &freezer)
		714	{
		715	#define MAP_OUT(k) freezer.put (KW(k), k)
		716	#define MAP_OUT2(k,v) freezer.put (KW(k), v)
		717
		718	MAP_OUT2 (arch, CS(map));
		719
		720	if (name) MAP_OUT (name);
		721	MAP_OUT (swap_time);
		722	MAP_OUT (reset_time);
		723	MAP_OUT (reset_timeout);
		724	MAP_OUT (fixed_resettime);
		725	MAP_OUT (no_reset);
		726	MAP_OUT (no_drop);
		727	MAP_OUT (difficulty);
		728	if (default_region) MAP_OUT2 (region, default_region->name);
		729
		730	if (shopitems) MAP_OUT2 (shopitems, print_shop_string (this));
		731	MAP_OUT (shopgreed);
		732	MAP_OUT (shopmin);
		733	MAP_OUT (shopmax);
		734	if (shoprace) MAP_OUT (shoprace);
		735
		736	MAP_OUT (width);
		737	MAP_OUT (height);
		738	MAP_OUT (enter_x);
		739	MAP_OUT (enter_y);
		740	MAP_OUT (darkness);
		741	MAP_OUT (outdoor);
		742
		743	if (msg) freezer.put (KW(msg) , KW(endmsg) , msg);
		744	if (maplore) freezer.put (KW(maplore), KW(endmaplore), maplore);
		745
		746	MAP_OUT (per_player);
		747	MAP_OUT (per_party);
		748
		749	if (tile_path [0]) MAP_OUT2 (tile_path_1, tile_path [0]);
		750	if (tile_path [1]) MAP_OUT2 (tile_path_2, tile_path [1]);
		751	if (tile_path [2]) MAP_OUT2 (tile_path_3, tile_path [2]);
		752	if (tile_path [3]) MAP_OUT2 (tile_path_4, tile_path [3]);
		753
		754	freezer.put (this);
		755	freezer.put (KW(end));
		756
		757	return true;
		758	}
		759
		760	bool
		761	maptile::_save_header (const char *path)
		762	{
		763	object_freezer freezer;
		764
		765	if (!_save_header (freezer))
		766	return false;
		767
		768	return freezer.save (path);
		769	}
		770
		771	//+GPL
		772
		773	/*
		774	* Remove and free all objects in the given map.
		775	*/
		776	void
		777	maptile::clear ()
		778	{
		779	if (spaces)
		780	{
		781	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		782	while (object *op = ms->bot)
1249	{	783	{
		784	// manually remove, as to not trigger anything
1250	next = op->above;	785	if (ms->bot = op->above)
		786	ms->bot->below = 0;
1251		787
1252	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))	788	op->flag [FLAG_REMOVED] = true;
1253	unique = 1;
1254		789
1255	if (op->head == NULL && (QUERY_FLAG (op, FLAG_UNIQUE) || unique))	790	object *head = op->head_ ();
		791	if (op == head)
		792	op->destroy ();
		793	else if (head->map != op->map)
1256	{	794	{
1257	op->destroy_inv (false);	795	LOG (llevDebug, "bad luck for object crossing map borders: %s", head->debug_desc ());
1258	op->destroy ();	796	head->destroy ();
1259	}	797	}
1260	}	798	}
		799
		800	sfree0 (spaces, size ());
1261	}	801	}
1262	}
1263		802
1264
1265	/*
1266	* Loads unique objects from file(s) into the map which is in memory
1267	* m is the map to load unique items into.
1268	*/
1269	static void
1270	load_unique_objects (maptile *m)
1271	{
1272	int count;
1273	char firstname[MAX_BUF];
1274
1275	for (count = 0; count < 10; count++)
1276	{
1277	sprintf (firstname, "%s.v%02d", create_items_path (m->path), count);
1278	if (!access (firstname, R_OK))
1279	break;
1280	}
1281	/* If we get here, we did not find any map */
1282	if (count == 10)
1283	return;
1284
1285	object_thawer thawer (firstname);
1286
1287	if (!thawer)
1288	return;
1289
1290	m->in_memory = MAP_LOADING;
1291	if (m->tmpname == NULL) /* if we have loaded unique items from */
1292	delete_unique_items (m); /* original map before, don't duplicate them */
1293	load_objects (m, thawer, 0);
1294
1295	m->in_memory = MAP_IN_MEMORY;
1296	}
1297
1298
1299	/*
1300	* Saves a map to file. If flag is set, it is saved into the same
1301	* file it was (originally) loaded from. Otherwise a temporary
1302	* filename will be genarated, and the file will be stored there.
1303	* The temporary filename will be stored in the maptileure.
1304	* If the map is unique, we also save to the filename in the map
1305	* (this should have been updated when first loaded)
1306	*/
1307
1308	int
1309	new_save_map (maptile *m, int flag)
1310	{
1311	char filename[MAX_BUF], buf[MAX_BUF], shop[MAX_BUF];
1312	int i;
1313
1314	if (flag && !*m->path)
1315	{
1316	LOG (llevError, "Tried to save map without path.\n");
1317	return -1;
1318	}
1319
1320	if (flag || (m->unique) || (m->templatemap))
1321	{
1322	if (!m->unique && !m->templatemap)
1323	{ /* flag is set */
1324	if (flag == 2)
1325	strcpy (filename, create_overlay_pathname (m->path));
1326	else
1327	strcpy (filename, create_pathname (m->path));
1328	}
1329	else
1330	strcpy (filename, m->path);
1331
1332	make_path_to_file (filename);
1333	}
1334	else
1335	{
1336	if (!m->tmpname)
1337	m->tmpname = tempnam (settings.tmpdir, NULL);
1338
1339	strcpy (filename, m->tmpname);
1340	}
1341
1342	LOG (llevDebug, "Saving map %s to %s\n", m->path, filename);
1343	m->in_memory = MAP_SAVING;
1344
1345	object_freezer freezer;
1346
1347	/* legacy */
1348	fprintf (freezer, "arch map\n");
1349	if (m->name)
1350	fprintf (freezer, "name %s\n", m->name);
1351	if (!flag)
1352	fprintf (freezer, "swap_time %d\n", m->swap_time);
1353	if (m->reset_timeout)
1354	fprintf (freezer, "reset_timeout %d\n", m->reset_timeout);
1355	if (m->fixed_resettime)
1356	fprintf (freezer, "fixed_resettime %d\n", m->fixed_resettime);
1357	/* we unfortunately have no idea if this is a value the creator set
1358	* or a difficulty value we generated when the map was first loaded
1359	*/
1360	if (m->difficulty)
1361	fprintf (freezer, "difficulty %d\n", m->difficulty);
1362	if (m->region)
1363	fprintf (freezer, "region %s\n", m->region->name);
1364	if (m->shopitems)
1365	{
1366	print_shop_string (m, shop);
1367	fprintf (freezer, "shopitems %s\n", shop);
1368	}
1369	if (m->shopgreed)
1370	fprintf (freezer, "shopgreed %f\n", m->shopgreed);
1371	if (m->shopmin)
1372	fprintf (freezer, "shopmin %llu\n", m->shopmin);
1373	if (m->shopmax)
1374	fprintf (freezer, "shopmax %llu\n", m->shopmax);
1375	if (m->shoprace)
1376	fprintf (freezer, "shoprace %s\n", m->shoprace);
1377	if (m->darkness)
1378	fprintf (freezer, "darkness %d\n", m->darkness);
1379	if (m->width)
1380	fprintf (freezer, "width %d\n", m->width);
1381	if (m->height)
1382	fprintf (freezer, "height %d\n", m->height);
1383	if (m->enter_x)
1384	fprintf (freezer, "enter_x %d\n", m->enter_x);
1385	if (m->enter_y)
1386	fprintf (freezer, "enter_y %d\n", m->enter_y);
1387	if (m->msg)
1388	fprintf (freezer, "msg\n%sendmsg\n", m->msg);
1389	if (m->maplore)
1390	fprintf (freezer, "maplore\n%sendmaplore\n", m->maplore);
1391	if (m->unique)
1392	fprintf (freezer, "unique %d\n", m->unique);
1393	if (m->templatemap)
1394	fprintf (freezer, "template %d\n", m->templatemap);
1395	if (m->outdoor)
1396	fprintf (freezer, "outdoor %d\n", m->outdoor);
1397	if (m->temp)
1398	fprintf (freezer, "temp %d\n", m->temp);
1399	if (m->pressure)
1400	fprintf (freezer, "pressure %d\n", m->pressure);
1401	if (m->humid)
1402	fprintf (freezer, "humid %d\n", m->humid);
1403	if (m->windspeed)
1404	fprintf (freezer, "windspeed %d\n", m->windspeed);
1405	if (m->winddir)
1406	fprintf (freezer, "winddir %d\n", m->winddir);
1407	if (m->sky)
1408	fprintf (freezer, "sky %d\n", m->sky);
1409	if (m->nosmooth)
1410	fprintf (freezer, "nosmooth %d\n", m->nosmooth);
1411
1412	/* Save any tiling information, except on overlays */
1413	if (flag != 2)
1414	for (i = 0; i < 4; i++)
1415	if (m->tile_path[i])
1416	fprintf (freezer, "tile_path_%d %s\n", i + 1, m->tile_path[i]);
1417
1418	freezer.put (m);
1419	fprintf (freezer, "end\n");
1420
1421	/* In the game save unique items in the different file, but
1422	* in the editor save them to the normal map file.
1423	* If unique map, save files in the proper destination (set by
1424	* player)
1425	*/
1426	if ((flag == 0 || flag == 2) && !m->unique && !m->templatemap)
1427	{
1428	object_freezer unique;
1429
1430	if (flag == 2)
1431	save_objects (m, freezer, unique, 2);
1432	else
1433	save_objects (m, freezer, unique, 0);
1434
1435	sprintf (buf, "%s.v00", create_items_path (m->path));
1436
1437	unique.save (buf);
1438	}
1439	else
1440	{ /* save same file when not playing, like in editor */
1441	save_objects (m, freezer, freezer, 0);
1442	}
1443
1444	freezer.save (filename);
1445
1446	return 0;
1447	}
1448
1449	/*
1450	* Remove and free all objects in the given map.
1451	*/
1452	void
1453	free_all_objects (maptile *m)
1454	{
1455	if (!m->spaces)
1456	return;
1457
1458	for (int i = 0; i < MAP_WIDTH (m); i++)
1459	for (int j = 0; j < MAP_HEIGHT (m); j++)
1460	{
1461	mapspace &ms = m->at (i, j);
1462
1463	while (object *op = ms.bottom)
1464	{
1465	if (op->head)
1466	op = op->head;
1467
1468	op->destroy_inv (false);
1469	op->destroy ();
1470	}
1471	}
1472	}
1473
1474	/*
1475	* Frees everything allocated by the given maptileure.
1476	* don't free tmpname - our caller is left to do that
1477	*/
1478	void
1479	free_map (maptile *m, int flag)
1480	{
1481	if (m->in_memory != MAP_IN_MEMORY)
1482	return;
1483
1484	m->in_memory = MAP_SAVING;
1485
1486	// TODO: use new/delete
1487	#define FREE_AND_CLEAR(p) { free (p); p = NULL; }
1488
1489	if (flag && m->spaces)
1490	free_all_objects (m);
1491	if (m->name)
1492	FREE_AND_CLEAR (m->name);
1493	if (m->spaces)
1494	FREE_AND_CLEAR (m->spaces);
1495	if (m->msg)
1496	FREE_AND_CLEAR (m->msg);
1497	if (m->maplore)
1498	FREE_AND_CLEAR (m->maplore);
1499
1500	delete [] m->shopitems;
1501	m->shopitems = 0;
1502
1503	if (m->shoprace)
1504	FREE_AND_CLEAR (m->shoprace);
1505
1506	if (m->buttons)	803	if (buttons)
1507	free_objectlinkpt (m->buttons);	804	free_objectlinkpt (buttons), buttons = 0;
1508		805
1509	m->buttons = NULL;	806	sfree0 (regions, size ());
		807	delete [] regionmap; regionmap = 0;
		808	}
		809
		810	void
		811	maptile::clear_header ()
		812	{
		813	name = 0;
		814	msg = 0;
		815	maplore = 0;
		816	shoprace = 0;
		817	delete [] shopitems, shopitems = 0;
1510		818
1511	for (int i = 0; i < 4; i++)	819	for (int i = 0; i < 4; i++)
1512	{
1513	if (m->tile_path[i])
1514	FREE_AND_CLEAR (m->tile_path[i]);
1515
1516	m->tile_map[i] = 0;	820	tile_path [i] = 0;
1517	}
1518
1519	m->in_memory = MAP_SWAPPED;
1520
1521	#undef FREE_AND_CLEAR
1522	}	821	}
1523		822
1524	maptile::~maptile ()	823	maptile::~maptile ()
1525	{	824	{
1526	free_map (this, 1);	825	assert (destroyed ());
1527	free (tmpname);
1528	}	826	}
1529		827
1530	void	828	void
1531	maptile::do_destroy ()	829	maptile::clear_links_to (maptile *m)
1532	{	830	{
1533	attachable::do_destroy ();
1534
1535	free_all_objects (this);
1536
1537	/* We need to look through all the maps and see if any maps	831	/* We need to look through all the maps and see if any maps
1538	* are pointing at this one for tiling information. Since	832	* are pointing at this one for tiling information. Since
1539	* tiling can be asymetric, we just can not look to see which	833	* tiling can be asymetric, we just can not look to see which
1540	* maps this map tiles with and clears those.	834	* maps this map tiles with and clears those.
1541	*/	835	*/
1542	//TODO: non-euclidean-tiling MUST GO
1543	for (maptile *m = first_map; m; m = m->next)
1544	for (int i = 0; i < 4; i++)	836	for (int i = 0; i < 4; i++)
1545	if (m->tile_map[i] == this)	837	if (tile_map[i] == m)
1546	m->tile_map[i] = 0;	838	tile_map[i] = 0;
		839	}
1547		840
1548	if (first_map == this)	841	void
1549	first_map = next;	842	maptile::do_destroy ()
1550	else	843	{
1551	for (maptile *m = first_map; m; m = m->next)	844	attachable::do_destroy ();
1552	if (m->next = this)	845
		846	clear ();
		847	}
		848
		849	/* decay and destroy perishable items in a map */
		850	// TODO: should be done regularly, not on map load?
		851	void
		852	maptile::do_decay_objects ()
		853	{
		854	if (!spaces)
		855	return;
		856
		857	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		858	for (object *above, *op = ms->bot; op; op = above)
1553	{	859	{
1554	m->next = next;	860	above = op->above;
		861
		862	// do not decay anything above unique floor tiles (yet :)
		863	if (op->flag [FLAG_IS_FLOOR] && op->flag [FLAG_UNIQUE])
1555	break;	864	break;
1556	}
1557	}
1558		865
1559	//TODO: must go	866	bool destroy = 0;
1560	void
1561	delete_map (maptile *m)
1562	{
1563	if (m)
1564	m->destroy ();
1565	}
1566		867
1567	/*	868	if (op->flag [FLAG_IS_FLOOR]
1568	* Makes sure the given map is loaded and swapped in.	869	|| op->flag [FLAG_OBJ_ORIGINAL]
1569	* name is path name of the map.	870	|| op->flag [FLAG_UNIQUE]
1570	* flags meaning:	871	|| op->flag [FLAG_OVERLAY_FLOOR]
1571	* 0x1 (MAP_FLUSH): flush the map - always load from the map directory,	872	|| op->flag [FLAG_UNPAID]
1572	* and don't do unique items or the like.	873	|| op->is_alive ())
1573	* 0x2 (MAP_PLAYER_UNIQUE) - this is a unique map for each player.	874	; // do not decay
1574	* dont do any more name translation on it.	875	else if (op->is_weapon ())
1575	*
1576	* Returns a pointer to the given map.
1577	*/
1578	maptile *
1579	ready_map_name (const char *name, int flags)
1580	{
1581	if (!name)
1582	return 0;
1583
1584	/* Have we been at this level before? */
1585	maptile *m = has_been_loaded (name);
1586
1587	/* Map is good to go, so just return it */
1588	if (m && (m->in_memory == MAP_LOADING || m->in_memory == MAP_IN_MEMORY))
1589	return m;
1590
1591	/* unique maps always get loaded from their original location, and never
1592	* a temp location. Likewise, if map_flush is set, or we have never loaded
1593	* this map, load it now. I removed the reset checking from here -
1594	* it seems the probability of a player trying to enter a map that should
1595	* reset but hasn't yet is quite low, and removing that makes this function
1596	* a bit cleaner (and players probably shouldn't rely on exact timing for
1597	* resets in any case - if they really care, they should use the 'maps command.
1598	*/
1599	if ((flags & (MAP_FLUSH | MAP_PLAYER_UNIQUE)) || !m)
1600	{
1601	/* first visit or time to reset */
1602	if (m)
1603	{	876	{
1604	clean_tmp_map (m); /* Doesn't make much difference */	877	op->stats.dam--;
1605	delete_map (m);	878	if (op->stats.dam < 0)
		879	destroy = 1;
1606	}	880	}
1607		881	else if (op->is_armor ())
1608	/* create and load a map */	882	{
1609	if (flags & MAP_PLAYER_UNIQUE)	883	op->stats.ac--;
1610	LOG (llevDebug, "Trying to load map %s.\n", name);	884	if (op->stats.ac < 0)
		885	destroy = 1;
		886	}
		887	else if (op->type == FOOD)
		888	{
		889	op->stats.food -= rndm (5, 20);
		890	if (op->stats.food < 0)
		891	destroy = 1;
		892	}
1611	else	893	else
1612	LOG (llevDebug, "Trying to load map %s.\n", create_pathname (name));
1613
1614	//eval_pv ("$x = Event::time", 1);//D
1615	if (!(m = load_original_map (name, (flags & MAP_PLAYER_UNIQUE))))
1616	return (NULL);
1617	//eval_pv ("warn \"LOAD \", Event::time - $x", 1);//D
1618
1619	fix_auto_apply (m); /* Chests which open as default */
1620
1621	/* If a player unique map, no extra unique object file to load.
1622	* if from the editor, likewise.
1623	*/
1624	if (!(flags & (MAP_FLUSH | MAP_PLAYER_UNIQUE)))
1625	load_unique_objects (m);
1626
1627	if (!(flags & (MAP_FLUSH | MAP_PLAYER_UNIQUE | MAP_OVERLAY)))
1628	{	894	{
1629	m = load_overlay_map (name, m);	895	int mat = op->materials;
1630	if (m == NULL)	896
1631	return NULL;	897	if (mat & M_PAPER
		898	|| mat & M_LEATHER
		899	|| mat & M_WOOD
		900	|| mat & M_ORGANIC
		901	|| mat & M_CLOTH
		902	|| mat & M_LIQUID
		903	|| (mat & M_IRON && rndm (1, 5) == 1)
		904	|| (mat & M_GLASS && rndm (1, 2) == 1)
		905	|| ((mat & M_STONE || mat & M_ADAMANT) && rndm (1, 10) == 1)
		906	|| ((mat & M_SOFT_METAL || mat & M_BONE) && rndm (1, 3) == 1)
		907	//|| (mat & M_ICE && temp > 32)
		908	)
		909	destroy = 1;
1632	}	910	}
1633		911
1634	if (flags & MAP_PLAYER_UNIQUE)	912	/* adjust overall chance below */
1635	INVOKE_MAP (SWAPIN, m);	913	if (destroy && rndm (0, 1))
1636		914	op->destroy ();
1637	}	915	}
1638	else
1639	{
1640	/* If in this loop, we found a temporary map, so load it up. */
1641
1642	m = load_temporary_map (m);
1643	if (m == NULL)
1644	return NULL;
1645	load_unique_objects (m);
1646
1647	clean_tmp_map (m);
1648	m->in_memory = MAP_IN_MEMORY;
1649	/* tempnam() on sun systems (probably others) uses malloc
1650	* to allocated space for the string. Free it here.
1651	* In some cases, load_temporary_map above won't find the
1652	* temporary map, and so has reloaded a new map. If that
1653	* is the case, tmpname is now null
1654	*/
1655	if (m->tmpname)
1656	free (m->tmpname);
1657	m->tmpname = NULL;
1658	/* It's going to be saved anew anyway */
1659	}
1660
1661	/* Below here is stuff common to both first time loaded maps and
1662	* temp maps.
1663	*/
1664
1665	decay_objects (m); /* start the decay */
1666	/* In case other objects press some buttons down */
1667	update_buttons (m);
1668	if (m->outdoor)
1669	set_darkness_map (m);
1670	/* run the weather over this map */
1671	weather_effect (name);
1672	return m;
1673	}	916	}
1674
1675		917
1676	/*	918	/*
1677	* This routine is supposed to find out the difficulty of the map.	919	* This routine is supposed to find out the difficulty of the map.
1678	* difficulty does not have a lot to do with character level,	920	* difficulty does not have a lot to do with character level,
1679	* but does have a lot to do with treasure on the map.	921	* but does have a lot to do with treasure on the map.
1680	*	922	*
1681	* Difficulty can now be set by the map creature. If the value stored	923	* Difficulty can now be set by the map creator. If the value stored
1682	* in the map is zero, then use this routine. Maps should really	924	* in the map is zero, then use this routine. Maps should really
1683	* have a difficulty set than using this function - human calculation	925	* have a difficulty set rather than using this function - human calculation
1684	* is much better than this functions guesswork.	926	* is much better than this function's guesswork.
1685	*/	927	*/
1686
1687	int	928	int
1688	calculate_difficulty (maptile *m)	929	maptile::estimate_difficulty () const
1689	{	930	{
1690	object *op;
1691	archetype *at;
1692	int x, y, i;
1693	long monster_cnt = 0;	931	long monster_cnt = 0;
1694	double avgexp = 0;	932	double avgexp = 0;
1695	sint64 total_exp = 0;	933	sint64 total_exp = 0;
1696		934
1697	if (MAP_DIFFICULTY (m))	935	for (mapspace *ms = spaces + size (); ms-- > spaces; )
1698	{	936	for (object *op = ms->bot; op; op = op->above)
1699	LOG (llevDebug, "Using stored map difficulty: %d\n", MAP_DIFFICULTY (m));
1700	return MAP_DIFFICULTY (m);
1701	}
1702
1703	for (x = 0; x < MAP_WIDTH (m); x++)
1704	for (y = 0; y < MAP_HEIGHT (m); y++)
1705	for (op = GET_MAP_OB (m, x, y); op != NULL; op = op->above)
1706	{	937	{
1707	if (QUERY_FLAG (op, FLAG_MONSTER))	938	if (op->flag [FLAG_MONSTER])
1708	{	939	{
1709	total_exp += op->stats.exp;	940	total_exp += op->stats.exp;
1710	monster_cnt++;	941	monster_cnt++;
1711	}	942	}
1712		943
1713	if (QUERY_FLAG (op, FLAG_GENERATOR))	944	if (op->flag [FLAG_GENERATOR])
1714	{	945	{
1715	total_exp += op->stats.exp;	946	total_exp += op->stats.exp;
1716	at = type_to_archetype (GENERATE_TYPE (op));
1717		947
1718	if (at != NULL)	948	if (archetype *at = op->other_arch)
		949	{
1719	total_exp += at->clone.stats.exp * 8;	950	total_exp += at->stats.exp * 8;
1720
1721	monster_cnt++;	951	monster_cnt++;
1722	}	952	}
		953
		954	for (object *inv = op->inv; inv; inv = inv->below)
		955	{
		956	total_exp += op->stats.exp * 8;
		957	monster_cnt++;
		958	}
1723	}	959	}
		960	}
1724		961
1725	avgexp = (double) total_exp / monster_cnt;	962	avgexp = (double) total_exp / monster_cnt;
1726		963
1727	for (i = 1; i <= settings.max_level; i++)	964	for (int i = 1; i <= settings.max_level; i++)
1728	{
1729	if ((level_exp (i, 1) - level_exp (i - 1, 1)) > (100 * avgexp))	965	if ((level_exp (i, 1) - level_exp (i - 1, 1)) > (100 * avgexp))
1730	{
1731	/* LOG(llevDebug, "Calculated difficulty for map: %s: %d\n", m->name, i); */
1732	return i;	966	return i;
1733	}
1734	}
1735		967
1736	return 1;	968	return 1;
1737	}
1738
1739	void
1740	clean_tmp_map (maptile *m)
1741	{
1742	if (m->tmpname == NULL)
1743	return;
1744	INVOKE_MAP (CLEAN, m);
1745	(void) unlink (m->tmpname);
1746	}
1747
1748	void
1749	free_all_maps (void)
1750	{
1751	int real_maps = 0;
1752
1753	while (first_map)
1754	{
1755	/* I think some of the callers above before it gets here set this to be
1756	* saving, but we still want to free this data
1757	*/
1758	if (first_map->in_memory == MAP_SAVING)
1759	first_map->in_memory = MAP_IN_MEMORY;
1760	delete_map (first_map);
1761	real_maps++;
1762	}
1763	LOG (llevDebug, "free_all_maps: Freed %d maps\n", real_maps);
1764	}	969	}
1765		970
1766	/* change_map_light() - used to change map light level (darkness)	971	/* change_map_light() - used to change map light level (darkness)
1767	* up or down. Returns true if successful. It should now be	972	* up or down. Returns true if successful. It should now be
1768	* possible to change a value by more than 1.	973	* possible to change a value by more than 1.
1769	* Move this from los.c to map.c since this is more related	974	* Move this from los.c to map.c since this is more related
1770	* to maps than los.	975	* to maps than los.
1771	* postive values make it darker, negative make it brighter	976	* postive values make it darker, negative make it brighter
1772	*/	977	*/
1773
1774	int	978	int
1775	change_map_light (maptile *m, int change)	979	maptile::change_map_light (int change)
1776	{	980	{
1777	int new_level = m->darkness + change;
1778
1779	/* Nothing to do */	981	/* Nothing to do */
1780	if (!change || (new_level <= 0 && m->darkness == 0) || (new_level >= MAX_DARKNESS && m->darkness >= MAX_DARKNESS))	982	if (!change)
1781	{
1782	return 0;	983	return 0;
1783	}
1784		984
1785	/* inform all players on the map */	985	/* inform all players on the map */
1786	if (change > 0)	986	if (change > 0)
1787	new_info_map (NDI_BLACK | NDI_UNIQUE, m, "It becomes darker.");	987	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes darker.");
1788	else	988	else
1789	new_info_map (NDI_BLACK | NDI_UNIQUE, m, "It becomes brighter.");	989	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes brighter.");
1790		990
1791	/* Do extra checking. since m->darkness is a unsigned value,	991	darkness = clamp (darkness + change, -MAX_DARKNESS, MAX_DARKNESS);
1792	* we need to be extra careful about negative values.
1793	* In general, the checks below are only needed if change
1794	* is not +/-1
1795	*/
1796	if (new_level < 0)
1797	m->darkness = 0;
1798	else if (new_level >= MAX_DARKNESS)
1799	m->darkness = MAX_DARKNESS;
1800	else
1801	m->darkness = new_level;
1802		992
1803	/* All clients need to get re-updated for the change */	993	/* All clients need to get re-updated for the change */
1804	update_all_map_los (m);	994	update_all_map_los (this);
		995
1805	return 1;	996	return 1;
1806	}	997	}
1807		998
1808	/*	999	/*
1809	* This function updates various attributes about a specific space	1000	* This function updates various attributes about a specific space
…		…
1812	* through, etc)	1003	* through, etc)
1813	*/	1004	*/
1814	void	1005	void
1815	mapspace::update_ ()	1006	mapspace::update_ ()
1816	{	1007	{
1817	object *tmp, *last = 0;	1008	object *last = 0;
1818	uint8 flags = 0, light = 0, anywhere = 0;	1009	uint8 flags = P_UPTODATE;
1819	New_Face *top, *floor, *middle;	1010	sint8 light = 0;
1820	object *top_obj, *floor_obj, *middle_obj;
1821	MoveType move_block = 0, move_slow = 0, move_on = 0, move_off = 0, move_allow = 0;	1011	MoveType move_block = 0, move_slow = 0, move_on = 0, move_off = 0, move_allow = 0;
		1012	uint64_t volume = 0;
		1013	uint32_t items = 0;
		1014	object *anywhere = 0;
		1015	uint8_t middle_visibility = 0;
1822		1016
1823	middle = blank_face;	1017	//object *middle = 0;
1824	top = blank_face;	1018	//object *top = 0;
1825	floor = blank_face;	1019	//object *floor = 0;
		1020	// this seems to generate better code than using locals, above
		1021	object *&top = faces_obj[0] = 0;
		1022	object *&middle = faces_obj[1] = 0;
		1023	object *&floor = faces_obj[2] = 0;
1826		1024
1827	middle_obj = 0;	1025	object::flags_t allflags; // all flags of all objects or'ed together
1828	top_obj = 0;
1829	floor_obj = 0;
1830		1026
1831	for (tmp = bottom; tmp; last = tmp, tmp = tmp->above)	1027	for (object *tmp = bot; tmp; last = tmp, tmp = tmp->above)
1832	{	1028	{
1833	/* This could be made additive I guess (two lights better than	1029	// Lights are additive, up to MAX_LIGHT_RADIUS, see los.C)
1834	* one). But if so, it shouldn't be a simple additive - 2
1835	* light bulbs do not illuminate twice as far as once since
1836	* it is a dissapation factor that is cubed.
1837	*/
1838	if (tmp->glow_radius > light)
1839	light = tmp->glow_radius;	1030	light += tmp->glow_radius;
1840		1031
1841	/* This call is needed in order to update objects the player	1032	/* This call is needed in order to update objects the player
1842	* is standing in that have animations (ie, grass, fire, etc).	1033	* is standing in that have animations (ie, grass, fire, etc).
1843	* However, it also causes the look window to be re-drawn	1034	* However, it also causes the look window to be re-drawn
1844	* 3 times each time the player moves, because many of the	1035	* 3 times each time the player moves, because many of the
1845	* functions the move_player calls eventualy call this.	1036	* functions the move_player calls eventualy call this.
1846	*	1037	*
1847	* Always put the player down for drawing.	1038	* Always put the player down for drawing.
1848	*/	1039	*/
1849	if (!tmp->invisible)	1040	if (expect_true (!tmp->invisible))
1850	{	1041	{
1851	if ((tmp->type == PLAYER || QUERY_FLAG (tmp, FLAG_MONSTER)))	1042	if (expect_false (tmp->type == PLAYER || tmp->flag [FLAG_MONSTER]))
1852	{
1853	top = tmp->face;
1854	top_obj = tmp;	1043	top = tmp;
1855	}	1044	else if (expect_false (tmp->flag [FLAG_IS_FLOOR]))
1856	else if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))
1857	{	1045	{
1858	/* If we got a floor, that means middle and top were below it,	1046	/* If we got a floor, that means middle and top were below it,
1859	* so should not be visible, so we clear them.	1047	* so should not be visible, so we clear them.
1860	*/	1048	*/
1861	middle = blank_face;	1049	middle = 0;
1862	top = blank_face;	1050	top = 0;
1863	floor = tmp->face;
1864	floor_obj = tmp;	1051	floor = tmp;
		1052	volume = 0;
		1053	items = 0;
1865	}	1054	}
1866	/* Flag anywhere have high priority */	1055	else
1867	else if (QUERY_FLAG (tmp, FLAG_SEE_ANYWHERE))
1868	{	1056	{
1869	middle = tmp->face;	1057	if (expect_true (!tmp->flag [FLAG_NO_PICK]))
		1058	{
		1059	++items;
		1060	volume += tmp->volume ();
		1061	}
1870		1062
1871	middle_obj = tmp;	1063	/* Flag anywhere have high priority */
		1064	if (expect_false (tmp->flag [FLAG_SEE_ANYWHERE]))
1872	anywhere = 1;	1065	anywhere = tmp;
		1066
		1067	/* Find the highest visible face around. If equal
		1068	* visibilities, we still want the one nearer to the
		1069	* top
		1070	*/
		1071	if (expect_false (::faces [tmp->face].visibility >= middle_visibility))
		1072	{
		1073	middle_visibility = ::faces [tmp->face].visibility;
		1074	middle = tmp;
		1075	}
1873	}	1076	}
1874	/* Find the highest visible face around. If equal
1875	* visibilities, we still want the one nearer to the
1876	* top
1877	*/
1878	else if (middle == blank_face || (tmp->face->visibility > middle->visibility && !anywhere))
1879	{
1880	middle = tmp->face;
1881	middle_obj = tmp;
1882	}
1883	}
1884
1885	if (tmp == tmp->above)
1886	{
1887	LOG (llevError, "Error in structure of map\n");
1888	exit (-1);
1889	}	1077	}
1890		1078
1891	move_slow |= tmp->move_slow;	1079	move_slow |= tmp->move_slow;
1892	move_block |= tmp->move_block;	1080	move_block |= tmp->move_block;
1893	move_on |= tmp->move_on;	1081	move_on |= tmp->move_on;
1894	move_off |= tmp->move_off;	1082	move_off |= tmp->move_off;
1895	move_allow |= tmp->move_allow;	1083	move_allow |= tmp->move_allow;
1896		1084
1897	if (QUERY_FLAG (tmp, FLAG_BLOCKSVIEW)) flags |= P_BLOCKSVIEW;	1085	allflags |= tmp->flag;
1898	if (QUERY_FLAG (tmp, FLAG_NO_MAGIC)) flags |= P_NO_MAGIC;	1086
1899	if (tmp->type == PLAYER) flags |= P_PLAYER;	1087	if (tmp->type == PLAYER) flags |= P_PLAYER;
1900	if (tmp->type == SAFE_GROUND) flags |= P_SAFE;	1088	if (tmp->type == SAFE_GROUND) flags |= P_SAFE;
1901	if (QUERY_FLAG (tmp, FLAG_ALIVE)) flags |= P_IS_ALIVE;
1902	if (QUERY_FLAG (tmp, FLAG_DAMNED)) flags |= P_NO_CLERIC;
1903	}	1089	}
1904		1090
1905	this->light = light;	1091	// FLAG_SEE_ANYWHERE takes precedence
		1092	if (anywhere)
		1093	middle = anywhere;
		1094
		1095	// ORing all flags together and checking them here is much faster
		1096	if (allflags [FLAG_BLOCKSVIEW]) flags |= P_BLOCKSVIEW;
		1097	if (allflags [FLAG_NO_MAGIC] ) flags |= P_NO_MAGIC;
		1098	if (allflags [FLAG_ALIVE] ) flags |= P_IS_ALIVE;
		1099	if (allflags [FLAG_DAMNED] ) flags |= P_NO_CLERIC;
		1100
		1101	this->light = min (light, MAX_LIGHT_RADIUS);
1906	this->flags_ = flags;	1102	this->flags_ = flags;
1907	this->move_block = move_block & ~move_allow;	1103	this->move_block = move_block & ~move_allow;
1908	this->move_on = move_on;	1104	this->move_on = move_on;
1909	this->move_off = move_off;	1105	this->move_off = move_off;
1910	this->move_slow = move_slow;	1106	this->move_slow = move_slow;
		1107	this->volume_ = (volume + 1023) / 1024;
		1108	this->items_ = upos_min (items, 65535); // assume nrof <= 2**31
1911		1109
1912	/* 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),
1913	* 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
1914	* this point.	1112	* this point.
1915	* middle contains the highest visibility face.	1113	* middle contains the highest visibility face.
…		…
1922	* middle face. This should not happen, as we already have the	1120	* middle face. This should not happen, as we already have the
1923	* else statement above so middle should not get set. OTOH, it	1121	* else statement above so middle should not get set. OTOH, it
1924	* 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.
1925	*/	1123	*/
1926	if (top == middle)	1124	if (top == middle)
1927	middle = blank_face;	1125	middle = 0;
1928		1126
1929	/* There are three posibilities at this point:	1127	/* There are three posibilities at this point:
1930	* 1) top face is set, need middle to be set.	1128	* 1) top face is set, need middle to be set.
1931	* 2) middle is set, need to set top.	1129	* 2) middle is set, need to set top.
1932	* 3) neither middle or top is set - need to set both.	1130	* 3) neither middle or top is set - need to set both.
1933	*/	1131	*/
1934		1132
1935	for (tmp = last; tmp; tmp = tmp->below)	1133	for (object *tmp = last; tmp; tmp = tmp->below)
1936	{	1134	{
1937	/* 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 */
1938	if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))	1136	if (tmp->flag [FLAG_IS_FLOOR])
1939	break;	1137	break;
1940		1138
1941	/* If two top faces are already set, quit processing */	1139	/* If two top faces are already set, quit processing */
1942	if ((top != blank_face) && (middle != blank_face))	1140	if (top && middle)
1943	break;	1141	break;
1944		1142
1945	/* Only show visible faces, unless its the editor - show all */	1143	/* Only show visible faces */
1946	if (!tmp->invisible || editor)	1144	if (!tmp->invisible)
1947	{	1145	{
1948	/* Fill in top if needed */	1146	/* Fill in top if needed */
1949	if (top == blank_face)	1147	if (!top)
1950	{	1148	{
1951	top = tmp->face;
1952	top_obj = tmp;	1149	top = tmp;
1953	if (top == middle)	1150	if (top == middle)
1954	middle = blank_face;	1151	middle = 0;
1955	}	1152	}
1956	else	1153	else
1957	{	1154	{
1958	/* top is already set - we should only get here if	1155	/* top is already set - we should only get here if
1959	* middle is not set	1156	* middle is not set
1960	*	1157	*
1961	* Set the middle face and break out, since there is nothing	1158	* Set the middle face and break out, since there is nothing
1962	* more to fill in. We don't check visiblity here, since	1159	* more to fill in. We don't check visiblity here, since
1963	*	1160	*
1964	*/	1161	*/
1965	if (tmp->face != top)	1162	if (tmp != top)
1966	{	1163	{
1967	middle = tmp->face;
1968	middle_obj = tmp;	1164	middle = tmp;
1969	break;	1165	break;
1970	}	1166	}
1971	}	1167	}
1972	}	1168	}
1973	}	1169	}
1974		1170
1975	if (middle == floor)	1171	if (middle == floor)
1976	middle = blank_face;	1172	middle = 0;
1977		1173
1978	if (top == middle)	1174	if (top == middle)
1979	middle = blank_face;	1175	middle = 0;
1980		1176
1981	faces [0] = top; faces_obj [0] = top != blank_face ? top_obj : 0;	1177	#if 0
1982	faces [1] = middle; faces_obj [1] = middle != blank_face ? middle_obj : 0;	1178	faces_obj [0] = top;
1983	faces [2] = floor; faces_obj [2] = floor != blank_face ? floor_obj : 0;	1179	faces_obj [1] = middle;
		1180	faces_obj [2] = floor;
		1181	#endif
1984	}	1182	}
1985		1183
1986	void	1184	maptile *
1987	set_map_reset_time (maptile *map)	1185	maptile::tile_available (int dir, bool load)
1988	{	1186	{
1989	int timeout;	1187	if (tile_path[dir])
		1188	{
		1189	if (tile_map[dir] && (!load || tile_map[dir]->in_memory == MAP_ACTIVE))
		1190	return tile_map[dir];
1990		1191
1991	timeout = MAP_RESET_TIMEOUT (map);	1192	if ((tile_map[dir] = find_async (tile_path[dir], this, load)))
1992	if (timeout <= 0)	1193	return tile_map[dir];
1993	timeout = MAP_DEFAULTRESET;	1194	}
1994	if (timeout >= MAP_MAXRESET)
1995	timeout = MAP_MAXRESET;
1996	MAP_WHEN_RESET (map) = time (0) + timeout;
1997	}
1998		1195
1999	/* this updates the orig_map->tile_map[tile_num] value after loading	1196	return 0;
2000	* the map. It also takes care of linking back the freshly loaded
2001	* maps tile_map values if it tiles back to this one. It returns
2002	* the value of orig_map->tile_map[tile_num]. It really only does this
2003	* so that it is easier for calling functions to verify success.
2004	*/
2005
2006	static maptile *
2007	load_and_link_tiled_map (maptile *orig_map, int tile_num)
2008	{
2009	int dest_tile = (tile_num + 2) % 4;
2010	char *path = path_combine_and_normalize (orig_map->path, orig_map->tile_path[tile_num]);
2011
2012	orig_map->tile_map[tile_num] = ready_map_name (path, 0);
2013
2014	/* need to do a strcmp here as the orig_map->path is not a shared string */
2015	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))
2016	orig_map->tile_map[tile_num]->tile_map[dest_tile] = orig_map;
2017
2018	return orig_map->tile_map[tile_num];
2019	}	1197	}
2020		1198
2021	/* this returns TRUE if the coordinates (x,y) are out of	1199	/* this returns TRUE if the coordinates (x,y) are out of
2022	* map m. This function also takes into account any	1200	* map m. This function also takes into account any
2023	* tiling considerations, loading adjacant maps as needed.	1201	* tiling considerations, loading adjacant maps as needed.
2024	* This is the function should always be used when it	1202	* This is the function should always be used when it
2025	* necessary to check for valid coordinates.	1203	* necessary to check for valid coordinates.
2026	* This function will recursively call itself for the	1204	* This function will recursively call itself for the
2027	* tiled maps.	1205	* tiled maps.
2028	*
2029	*
2030	*/	1206	*/
2031	int	1207	int
2032	out_of_map (maptile *m, int x, int y)	1208	out_of_map (maptile *m, int x, int y)
2033	{	1209	{
2034	/* If we get passed a null map, this is obviously the	1210	/* If we get passed a null map, this is obviously the
…		…
2038	if (!m)	1214	if (!m)
2039	return 0;	1215	return 0;
2040		1216
2041	if (x < 0)	1217	if (x < 0)
2042	{	1218	{
2043	if (!m->tile_path[3])	1219	if (!m->tile_available (3))
2044	return 1;	1220	return 1;
2045		1221
2046	if (!m->tile_map[3] || m->tile_map[3]->in_memory != MAP_IN_MEMORY)
2047	load_and_link_tiled_map (m, 3);
2048
2049	return (out_of_map (m->tile_map[3], x + MAP_WIDTH (m->tile_map[3]), y));	1222	return out_of_map (m->tile_map[3], x + m->tile_map[3]->width, y);
2050	}
2051
2052	if (x >= MAP_WIDTH (m))
2053	{	1223	}
2054	if (!m->tile_path[1])	1224
		1225	if (x >= m->width)
		1226	{
		1227	if (!m->tile_available (1))
2055	return 1;	1228	return 1;
2056		1229
2057	if (!m->tile_map[1] || m->tile_map[1]->in_memory != MAP_IN_MEMORY)
2058	load_and_link_tiled_map (m, 1);
2059
2060	return (out_of_map (m->tile_map[1], x - MAP_WIDTH (m), y));	1230	return out_of_map (m->tile_map[1], x - m->width, y);
2061	}	1231	}
2062		1232
2063	if (y < 0)	1233	if (y < 0)
2064	{	1234	{
2065	if (!m->tile_path[0])	1235	if (!m->tile_available (0))
2066	return 1;	1236	return 1;
2067		1237
2068	if (!m->tile_map[0] || m->tile_map[0]->in_memory != MAP_IN_MEMORY)
2069	load_and_link_tiled_map (m, 0);
2070
2071	return (out_of_map (m->tile_map[0], x, y + MAP_HEIGHT (m->tile_map[0])));	1238	return out_of_map (m->tile_map[0], x, y + m->tile_map[0]->height);
2072	}
2073
2074	if (y >= MAP_HEIGHT (m))
2075	{	1239	}
2076	if (!m->tile_path[2])	1240
		1241	if (y >= m->height)
		1242	{
		1243	if (!m->tile_available (2))
2077	return 1;	1244	return 1;
2078		1245
2079	if (!m->tile_map[2] || m->tile_map[2]->in_memory != MAP_IN_MEMORY)
2080	load_and_link_tiled_map (m, 2);
2081
2082	return (out_of_map (m->tile_map[2], x, y - MAP_HEIGHT (m)));	1246	return out_of_map (m->tile_map[2], x, y - m->height);
2083	}	1247	}
2084		1248
2085	/* Simple case - coordinates are within this local	1249	/* Simple case - coordinates are within this local
2086	* map.	1250	* map.
2087	*/	1251	*/
…		…
2090		1254
2091	/* This is basically the same as out_of_map above, but	1255	/* This is basically the same as out_of_map above, but
2092	* instead we return NULL if no map is valid (coordinates	1256	* instead we return NULL if no map is valid (coordinates
2093	* out of bounds and no tiled map), otherwise it returns	1257	* out of bounds and no tiled map), otherwise it returns
2094	* the map as that the coordinates are really on, and	1258	* the map as that the coordinates are really on, and
2095	* updates x and y to be the localized coordinates.	1259	* updates x and y to be the localised coordinates.
2096	* Using this is more efficient of calling out_of_map	1260	* Using this is more efficient of calling out_of_map
2097	* and then figuring out what the real map is	1261	* and then figuring out what the real map is
2098	*/	1262	*/
2099	maptile *	1263	maptile *
2100	get_map_from_coord (maptile *m, sint16 * x, sint16 * y)	1264	maptile::xy_find (sint16 &x, sint16 &y)
2101	{	1265	{
2102
2103	if (*x < 0)	1266	if (x < 0)
2104	{	1267	{
2105	if (!m->tile_path[3])	1268	if (!tile_available (3))
2106	return 0;	1269	return 0;
2107	if (!m->tile_map[3] || m->tile_map[3]->in_memory != MAP_IN_MEMORY)
2108	load_and_link_tiled_map (m, 3);
2109		1270
2110	*x += MAP_WIDTH (m->tile_map[3]);	1271	x += tile_map[3]->width;
2111	return (get_map_from_coord (m->tile_map[3], x, y));	1272	return tile_map[3]->xy_find (x, y);
2112	}
2113
2114	if (*x >= MAP_WIDTH (m))
2115	{	1273	}
2116	if (!m->tile_path[1])	1274
		1275	if (x >= width)
		1276	{
		1277	if (!tile_available (1))
2117	return 0;	1278	return 0;
2118		1279
2119	if (!m->tile_map[1] || m->tile_map[1]->in_memory != MAP_IN_MEMORY)	1280	x -= width;
2120	load_and_link_tiled_map (m, 1);	1281	return tile_map[1]->xy_find (x, y);
2121
2122	*x -= MAP_WIDTH (m);
2123	return (get_map_from_coord (m->tile_map[1], x, y));
2124	}	1282	}
2125		1283
2126	if (*y < 0)	1284	if (y < 0)
2127	{	1285	{
2128	if (!m->tile_path[0])	1286	if (!tile_available (0))
2129	return 0;	1287	return 0;
2130		1288
2131	if (!m->tile_map[0] || m->tile_map[0]->in_memory != MAP_IN_MEMORY)	1289	y += tile_map[0]->height;
2132	load_and_link_tiled_map (m, 0);	1290	return tile_map[0]->xy_find (x, y);
2133
2134	*y += MAP_HEIGHT (m->tile_map[0]);
2135	return (get_map_from_coord (m->tile_map[0], x, y));
2136	}
2137
2138	if (*y >= MAP_HEIGHT (m))
2139	{	1291	}
2140	if (!m->tile_path[2])	1292
		1293	if (y >= height)
		1294	{
		1295	if (!tile_available (2))
2141	return 0;	1296	return 0;
2142		1297
2143	if (!m->tile_map[2] || m->tile_map[2]->in_memory != MAP_IN_MEMORY)	1298	y -= height;
2144	load_and_link_tiled_map (m, 2);	1299	return tile_map[2]->xy_find (x, y);
2145
2146	*y -= MAP_HEIGHT (m);
2147	return (get_map_from_coord (m->tile_map[2], x, y));
2148	}	1300	}
2149		1301
2150	/* Simple case - coordinates are within this local	1302	/* Simple case - coordinates are within this local
2151	* map.	1303	* map.
2152	*/	1304	*/
2153
2154	return m;	1305	return this;
2155	}	1306	}
2156		1307
2157	/**	1308	/**
2158	* Return whether map2 is adjacent to map1. If so, store the distance from	1309	* Return whether map2 is adjacent to map1. If so, store the distance from
2159	* map1 to map2 in dx/dy.	1310	* map1 to map2 in dx/dy.
2160	*/	1311	*/
2161	static int	1312	int
2162	adjacent_map (const maptile *map1, const maptile *map2, int *dx, int *dy)	1313	adjacent_map (const maptile *map1, const maptile *map2, int *dx, int *dy)
2163	{	1314	{
2164	if (!map1 || !map2)	1315	if (!map1 || !map2)
2165	return 0;	1316	return 0;
2166		1317
		1318	//TODO: this doesn't actually check correctly when intermediate maps are not loaded
		1319	//fix: compare paths instead (this is likely faster, too!)
2167	if (map1 == map2)	1320	if (map1 == map2)
2168	{	1321	{
2169	*dx = 0;	1322	*dx = 0;
2170	*dy = 0;	1323	*dy = 0;
2171
2172	}	1324	}
2173	else if (map1->tile_map[0] == map2)	1325	else if (map1->tile_map[0] == map2)
2174	{ /* up */	1326	{ /* up */
2175	*dx = 0;	1327	*dx = 0;
2176	*dy = -MAP_HEIGHT (map2);	1328	*dy = -map2->height;
2177	}	1329	}
2178	else if (map1->tile_map[1] == map2)	1330	else if (map1->tile_map[1] == map2)
2179	{ /* right */	1331	{ /* right */
2180	*dx = MAP_WIDTH (map1);	1332	*dx = map1->width;
2181	*dy = 0;	1333	*dy = 0;
2182	}	1334	}
2183	else if (map1->tile_map[2] == map2)	1335	else if (map1->tile_map[2] == map2)
2184	{ /* down */	1336	{ /* down */
2185	*dx = 0;	1337	*dx = 0;
2186	*dy = MAP_HEIGHT (map1);	1338	*dy = map1->height;
2187	}	1339	}
2188	else if (map1->tile_map[3] == map2)	1340	else if (map1->tile_map[3] == map2)
2189	{ /* left */	1341	{ /* left */
2190	*dx = -MAP_WIDTH (map2);	1342	*dx = -map2->width;
2191	*dy = 0;	1343	*dy = 0;
2192
2193	}	1344	}
2194	else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[1] == map2)	1345	else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[1] == map2)
2195	{ /* up right */	1346	{ /* up right */
2196	*dx = MAP_WIDTH (map1->tile_map[0]);	1347	*dx = map1->tile_map[0]->width;
2197	*dy = -MAP_HEIGHT (map1->tile_map[0]);	1348	*dy = -map1->tile_map[0]->height;
2198	}	1349	}
2199	else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[3] == map2)	1350	else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[3] == map2)
2200	{ /* up left */	1351	{ /* up left */
2201	*dx = -MAP_WIDTH (map2);	1352	*dx = -map2->width;
2202	*dy = -MAP_HEIGHT (map1->tile_map[0]);	1353	*dy = -map1->tile_map[0]->height;
2203	}	1354	}
2204	else if (map1->tile_map[1] && map1->tile_map[1]->tile_map[0] == map2)	1355	else if (map1->tile_map[1] && map1->tile_map[1]->tile_map[0] == map2)
2205	{ /* right up */	1356	{ /* right up */
2206	*dx = MAP_WIDTH (map1);	1357	*dx = map1->width;
2207	*dy = -MAP_HEIGHT (map2);	1358	*dy = -map2->height;
2208	}	1359	}
2209	else if (map1->tile_map[1] && map1->tile_map[1]->tile_map[2] == map2)	1360	else if (map1->tile_map[1] && map1->tile_map[1]->tile_map[2] == map2)
2210	{ /* right down */	1361	{ /* right down */
2211	*dx = MAP_WIDTH (map1);	1362	*dx = map1->width;
2212	*dy = MAP_HEIGHT (map1->tile_map[1]);	1363	*dy = map1->tile_map[1]->height;
2213	}	1364	}
2214	else if (map1->tile_map[2] && map1->tile_map[2]->tile_map[1] == map2)	1365	else if (map1->tile_map[2] && map1->tile_map[2]->tile_map[1] == map2)
2215	{ /* down right */	1366	{ /* down right */
2216	*dx = MAP_WIDTH (map1->tile_map[2]);	1367	*dx = map1->tile_map[2]->width;
2217	*dy = MAP_HEIGHT (map1);	1368	*dy = map1->height;
2218	}	1369	}
2219	else if (map1->tile_map[2] && map1->tile_map[2]->tile_map[3] == map2)	1370	else if (map1->tile_map[2] && map1->tile_map[2]->tile_map[3] == map2)
2220	{ /* down left */	1371	{ /* down left */
2221	*dx = -MAP_WIDTH (map2);	1372	*dx = -map2->width;
2222	*dy = MAP_HEIGHT (map1);	1373	*dy = map1->height;
2223	}	1374	}
2224	else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[0] == map2)	1375	else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[0] == map2)
2225	{ /* left up */	1376	{ /* left up */
2226	*dx = -MAP_WIDTH (map1->tile_map[3]);	1377	*dx = -map1->tile_map[3]->width;
2227	*dy = -MAP_HEIGHT (map2);	1378	*dy = -map2->height;
2228	}	1379	}
2229	else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[2] == map2)	1380	else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[2] == map2)
2230	{ /* left down */	1381	{ /* left down */
2231	*dx = -MAP_WIDTH (map1->tile_map[3]);	1382	*dx = -map1->tile_map[3]->width;
2232	*dy = MAP_HEIGHT (map1->tile_map[3]);	1383	*dy = map1->tile_map[3]->height;
2233
2234	}	1384	}
2235	else	1385	else
2236	{ /* not "adjacent" enough */
2237	return 0;	1386	return 0;
2238	}
2239		1387
2240	return 1;	1388	return 1;
		1389	}
		1390
		1391	maptile *
		1392	maptile::xy_load (sint16 &x, sint16 &y)
		1393	{
		1394	maptile *map = xy_find (x, y);
		1395
		1396	if (map)
		1397	map->load_sync ();
		1398
		1399	return map;
		1400	}
		1401
		1402	maptile *
		1403	get_map_from_coord (maptile *m, sint16 *x, sint16 *y)
		1404	{
		1405	return m->xy_load (*x, *y);
2241	}	1406	}
2242		1407
2243	/* From map.c	1408	/* From map.c
2244	* This is used by get_player to determine where the other	1409	* This is used by get_player to determine where the other
2245	* creature is. get_rangevector takes into account map tiling,	1410	* creature is. get_rangevector takes into account map tiling,
2246	* so you just can not look the the map coordinates and get the	1411	* so you just can not look the the map coordinates and get the
2247	* righte value. distance_x/y are distance away, which	1412	* righte value. distance_x/y are distance away, which
2248	* can be negativbe. direction is the crossfire direction scheme	1413	* can be negative. direction is the crossfire direction scheme
2249	* that the creature should head. part is the part of the	1414	* that the creature should head. part is the part of the
2250	* monster that is closest.	1415	* monster that is closest.
2251	*	1416	*
2252	* get_rangevector looks at op1 and op2, and fills in the	1417	* get_rangevector looks at op1 and op2, and fills in the
2253	* structure for op1 to get to op2.	1418	* structure for op1 to get to op2.
…		…
2258	* be unexpected	1423	* be unexpected
2259	*	1424	*
2260	* currently, the only flag supported (0x1) is don't translate for	1425	* currently, the only flag supported (0x1) is don't translate for
2261	* closest body part of 'op1'	1426	* closest body part of 'op1'
2262	*/	1427	*/
2263
2264	void	1428	void
2265	get_rangevector (object *op1, object *op2, rv_vector * retval, int flags)	1429	get_rangevector (object *op1, object *op2, rv_vector *retval, int flags)
2266	{	1430	{
2267	if (!adjacent_map (op1->map, op2->map, &retval->distance_x, &retval->distance_y))	1431	if (!adjacent_map (op1->map, op2->map, &retval->distance_x, &retval->distance_y))
2268	{	1432	{
2269	/* be conservative and fill in _some_ data */	1433	/* be conservative and fill in _some_ data */
2270	retval->distance = 100000;	1434	retval->distance = 10000;
2271	retval->distance_x = 32767;	1435	retval->distance_x = 10000;
2272	retval->distance_y = 32767;	1436	retval->distance_y = 10000;
2273	retval->direction = 0;	1437	retval->direction = 0;
2274	retval->part = 0;	1438	retval->part = 0;
2275	}	1439	}
2276	else	1440	else
2277	{	1441	{
2278	object *best;
2279
2280	retval->distance_x += op2->x - op1->x;	1442	retval->distance_x += op2->x - op1->x;
2281	retval->distance_y += op2->y - op1->y;	1443	retval->distance_y += op2->y - op1->y;
2282		1444
2283	best = op1;	1445	object *best = op1;
		1446
2284	/* If this is multipart, find the closest part now */	1447	/* If this is multipart, find the closest part now */
2285	if (!(flags & 0x1) && op1->more)	1448	if (!(flags & 1) && op1->more)
2286	{	1449	{
2287	object *tmp;	1450	int best_distance = idistance (retval->distance_x, retval->distance_y);
2288	int best_distance = retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y, tmpi;
2289		1451
2290	/* we just take the offset of the piece to head to figure	1452	/* we just take the offset of the piece to head to figure
2291	* distance instead of doing all that work above again	1453	* distance instead of doing all that work above again
2292	* since the distance fields we set above are positive in the	1454	* since the distance fields we set above are positive in the
2293	* same axis as is used for multipart objects, the simply arithmetic	1455	* same axis as is used for multipart objects, the simply arithmetic
2294	* below works.	1456	* below works.
2295	*/	1457	*/
2296	for (tmp = op1->more; tmp != NULL; tmp = tmp->more)	1458	for (object *tmp = op1->more; tmp; tmp = tmp->more)
2297	{	1459	{
2298	tmpi = (op1->x - tmp->x + retval->distance_x) * (op1->x - tmp->x + retval->distance_x) +	1460	int tmpi = idistance (op1->x - tmp->x + retval->distance_x, op1->y - tmp->y + retval->distance_y);
2299	(op1->y - tmp->y + retval->distance_y) * (op1->y - tmp->y + retval->distance_y);	1461
2300	if (tmpi < best_distance)	1462	if (tmpi < best_distance)
2301	{	1463	{
2302	best_distance = tmpi;	1464	best_distance = tmpi;
2303	best = tmp;	1465	best = tmp;
2304	}	1466	}
2305	}	1467	}
		1468
2306	if (best != op1)	1469	if (best != op1)
2307	{	1470	{
2308	retval->distance_x += op1->x - best->x;	1471	retval->distance_x += op1->x - best->x;
2309	retval->distance_y += op1->y - best->y;	1472	retval->distance_y += op1->y - best->y;
2310	}	1473	}
2311	}	1474	}
		1475
2312	retval->part = best;	1476	retval->part = best;
2313	retval->distance = isqrt (retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y);	1477	retval->distance = upos_max (abs (retval->distance_x), abs (retval->distance_y));
2314	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);	1478	retval->direction = find_dir_2 (retval->distance_x, retval->distance_y);
2315	}	1479	}
2316	}	1480	}
2317		1481
2318	/* this is basically the same as get_rangevector above, but instead of	1482	/* this is basically the same as get_rangevector above, but instead of
2319	* the first parameter being an object, it instead is the map	1483	* the first parameter being an object, it instead is the map
…		…
2323	* flags has no meaning for this function at this time - I kept it in to	1487	* flags has no meaning for this function at this time - I kept it in to
2324	* be more consistant with the above function and also in case they are needed	1488	* be more consistant with the above function and also in case they are needed
2325	* for something in the future. Also, since no object is pasted, the best	1489	* for something in the future. Also, since no object is pasted, the best
2326	* field of the rv_vector is set to NULL.	1490	* field of the rv_vector is set to NULL.
2327	*/	1491	*/
2328
2329	void	1492	void
2330	get_rangevector_from_mapcoord (const maptile *m, int x, int y, const object *op2, rv_vector * retval, int flags)	1493	get_rangevector_from_mapcoord (const maptile *m, int x, int y, const object *op2, rv_vector *retval, int flags)
2331	{	1494	{
2332	if (!adjacent_map (m, op2->map, &retval->distance_x, &retval->distance_y))	1495	if (!adjacent_map (m, op2->map, &retval->distance_x, &retval->distance_y))
2333	{	1496	{
2334	/* be conservative and fill in _some_ data */	1497	/* be conservative and fill in _some_ data */
2335	retval->distance = 100000;	1498	retval->distance = 100000;
2336	retval->distance_x = 32767;	1499	retval->distance_x = 32767;
2337	retval->distance_y = 32767;	1500	retval->distance_y = 32767;
2338	retval->direction = 0;	1501	retval->direction = 0;
2339	retval->part = 0;	1502	retval->part = 0;
2340	}	1503	}
2341	else	1504	else
2342	{	1505	{
2343	retval->distance_x += op2->x - x;	1506	retval->distance_x += op2->x - x;
2344	retval->distance_y += op2->y - y;	1507	retval->distance_y += op2->y - y;
2345		1508
2346	retval->part = NULL;	1509	retval->part = 0;
2347	retval->distance = isqrt (retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y);	1510	retval->distance = upos_max (abs (retval->distance_x), abs (retval->distance_y));
2348	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);	1511	retval->direction = find_dir_2 (retval->distance_x, retval->distance_y);
2349	}	1512	}
2350	}	1513	}
2351		1514
2352	/* Returns true of op1 and op2 are effectively on the same map	1515	/* Returns true of op1 and op2 are effectively on the same map
2353	* (as related to map tiling). Note that this looks for a path from	1516	* (as related to map tiling). Note that this looks for a path from
2354	* op1 to op2, so if the tiled maps are assymetric and op2 has a path	1517	* op1 to op2, so if the tiled maps are asymetric and op2 has a path
2355	* to op1, this will still return false.	1518	* to op1, this will still return false.
2356	* Note we only look one map out to keep the processing simple	1519	* Note we only look one map out to keep the processing simple
2357	* and efficient. This could probably be a macro.	1520	* and efficient. This could probably be a macro.
2358	* MSW 2001-08-05	1521	* MSW 2001-08-05
2359	*/	1522	*/
…		…
2362	{	1525	{
2363	int dx, dy;	1526	int dx, dy;
2364		1527
2365	return adjacent_map (op1->map, op2->map, &dx, &dy);	1528	return adjacent_map (op1->map, op2->map, &dx, &dy);
2366	}	1529	}
		1530
		1531	//-GPL
		1532
		1533	object *
		1534	maptile::insert (object *op, int x, int y, object *originator, int flags)
		1535	{
		1536	return insert_ob_in_map_at (op, this, originator, flags, x, y);
		1537	}
		1538
		1539	region *
		1540	maptile::region (int x, int y) const
		1541	{
		1542	if (regions
		1543	&& regionmap
		1544	&& !OUT_OF_REAL_MAP (this, x, y))
		1545	if (struct region *reg = regionmap [regions [y * width + x]])
		1546	return reg;
		1547
		1548	if (default_region)
		1549	return default_region;
		1550
		1551	return ::region::default_region ();
		1552	}
		1553
		1554	//+GPL
		1555
		1556	/* picks a random object from a style map.
		1557	*/
		1558	object *
		1559	maptile::pick_random_object (rand_gen &gen) const
		1560	{
		1561	/* while returning a null object will result in a crash, that
		1562	* is actually preferable to an infinite loop. That is because
		1563	* most servers will automatically restart in case of crash.
		1564	* Change the logic on getting the random space - shouldn't make
		1565	* any difference, but this seems clearer to me.
		1566	*/
		1567	for (int i = 1000; --i;)
		1568	{
		1569	object *pick = at (gen (width), gen (height)).bot;
		1570
		1571	// must be head: do not prefer big monsters just because they are big.
		1572	if (pick && pick->is_head ())
		1573	return pick;
		1574	}
		1575
		1576	// instead of crashing in the unlikely(?) case, try to return *something*
		1577	return archetype::find (shstr_bug);
		1578	}
		1579
		1580	//-GPL
		1581
		1582	void
		1583	maptile::play_sound (faceidx sound, int x, int y) const
		1584	{
		1585	if (!sound)
		1586	return;
		1587
		1588	for_all_players_on_map (pl, this)
		1589	if (client *ns = pl->ns)
		1590	{
		1591	int dx = x - pl->ob->x;
		1592	int dy = y - pl->ob->y;
		1593
		1594	int distance = idistance (dx, dy);
		1595
		1596	if (distance <= MAX_SOUND_DISTANCE)
		1597	ns->play_sound (sound, dx, dy);
		1598	}
		1599	}
		1600
		1601	void
		1602	maptile::say_msg (const char *msg, int x, int y) const
		1603	{
		1604	for_all_players (pl)
		1605	if (client *ns = pl->ns)
		1606	{
		1607	int dx = x - pl->ob->x;
		1608	int dy = y - pl->ob->y;
		1609
		1610	int distance = idistance (dx, dy);
		1611
		1612	if (distance <= MAX_SOUND_DISTANCE)
		1613	ns->send_msg (NDI_GREY | NDI_DEF, SAY_CHANNEL, msg);
		1614	}
		1615	}
		1616
		1617	dynbuf mapwalk_buf (sizeof (maprect) * 25, sizeof (maprect) * 25);
		1618
		1619	static void
		1620	split_to_tiles (dynbuf &buf, maptile *m, int x0, int y0, int x1, int y1, int dx, int dy)
		1621	{
		1622	// clip to map to the left
		1623	if (x0 < 0)
		1624	{
		1625	if (maptile *tile = m->tile_available (TILE_LEFT, 1))
		1626	split_to_tiles (buf, tile, x0 + tile->width, y0, min (x1 + tile->width, tile->width), y1, dx - tile->width, dy);
		1627
		1628	if (x1 < 0) // entirely to the left
		1629	return;
		1630
		1631	x0 = 0;
		1632	}
		1633
		1634	// clip to map to the right
		1635	if (x1 > m->width)
		1636	{
		1637	if (maptile *tile = m->tile_available (TILE_RIGHT, 1))
		1638	split_to_tiles (buf, tile, max (x0 - m->width, 0), y0, x1 - m->width, y1, dx + m->width, dy);
		1639
		1640	if (x0 > m->width) // entirely to the right
		1641	return;
		1642
		1643	x1 = m->width;
		1644	}
		1645
		1646	// clip to map above
		1647	if (y0 < 0)
		1648	{
		1649	if (maptile *tile = m->tile_available (TILE_UP, 1))
		1650	split_to_tiles (buf, tile, x0, y0 + tile->height, x1, min (y1 + tile->height, tile->height), dx, dy - tile->height);
		1651
		1652	if (y1 < 0) // entirely above
		1653	return;
		1654
		1655	y0 = 0;
		1656	}
		1657
		1658	// clip to map below
		1659	if (y1 > m->height)
		1660	{
		1661	if (maptile *tile = m->tile_available (TILE_DOWN, 1))
		1662	split_to_tiles (buf, tile, x0, max (y0 - m->height, 0), x1, y1 - m->height, dx, dy + m->height);
		1663
		1664	if (y0 > m->height) // entirely below
		1665	return;
		1666
		1667	y1 = m->height;
		1668	}
		1669
		1670	// if we get here, the rect is within the current map
		1671	maprect *r = (maprect *)buf.alloc (sizeof (maprect));
		1672
		1673	r->m = m;
		1674	r->x0 = x0;
		1675	r->y0 = y0;
		1676	r->x1 = x1;
		1677	r->y1 = y1;
		1678	r->dx = dx;
		1679	r->dy = dy;
		1680	}
		1681
		1682	maprect *
		1683	maptile::split_to_tiles (dynbuf &buf, int x0, int y0, int x1, int y1)
		1684	{
		1685	buf.clear ();
		1686
		1687	::split_to_tiles (buf, this, x0, y0, x1, y1, 0, 0);
		1688
		1689	// add end marker
		1690	maprect *r = (maprect *)buf.alloc (sizeof (maprect));
		1691	r->m = 0;
		1692
		1693	return (maprect *)buf.linearise ();
		1694	}
		1695

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