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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 1.164 by root, Fri Oct 16 01:19:12 2009 UTC

1	/*	1	/*
2	CrossFire, A Multiplayer game for X-windows	2	* This file is part of Deliantra, the Roguelike Realtime MMORPG.
3		3	*
		4	* Copyright (©) 2005,2006,2007,2008,2009 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
4	Copyright (C) 2001-2003 Mark Wedel & Crossfire Development Team	5	* Copyright (©) 2001-2003,2007 Mark Wedel & Crossfire Development Team
5	Copyright (C) 1992 Frank Tore Johansen	6	* Copyright (©) 1992,2007 Frank Tore Johansen
6		7	*
7	This program is free software; you can redistribute it and/or modify	8	* Deliantra is free software: you can redistribute it and/or modify it under
8	it under the terms of the GNU General Public License as published by	9	* the terms of the Affero GNU General Public License as published by the
9	the Free Software Foundation; either version 2 of the License, or	10	* Free Software Foundation, either version 3 of the License, or (at your
10	(at your option) any later version.	11	* option) any later version.
11		12	*
12	This program is distributed in the hope that it will be useful,	13	* This program is distributed in the hope that it will be useful,
13	but WITHOUT ANY WARRANTY; without even the implied warranty of	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15	GNU General Public License for more details.	16	* GNU General Public License for more details.
16		17	*
17	You should have received a copy of the GNU General Public License	18	* You should have received a copy of the Affero GNU General Public License
18	along with this program; if not, write to the Free Software	19	* and the GNU General Public License along with this program. If not, see
19	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	20	* <http://www.gnu.org/licenses/>.
20		21	*
21	The authors can be reached via e-mail at <crossfire@schmorp.de>	22	* The authors can be reached via e-mail to <support@deliantra.net>
22	*/	23	*/
23		24
24
25	#include <global.h>
26	#include <funcpoint.h>
27
28	#include <loader.h>
29	#include <unistd.h>	25	#include <unistd.h>
30		26
		27	#include "global.h"
		28	#include "loader.h"
31	#include "path.h"	29	#include "path.h"
32		30
33	/*	31	sint8 maptile::outdoor_darkness;
34	* Returns the maptile which has a name matching the given argument.
35	* return NULL if no match is found.
36	*/
37
38	maptile *
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		32
231	/* This rolls up wall, blocks_magic, blocks_view, etc, all into	33	/* This rolls up wall, blocks_magic, blocks_view, etc, all into
232	* one function that just returns a P_.. value (see map.h)	34	* one function that just returns a P_.. value (see map.h)
233	* it will also do map translation for tiled maps, returning	35	* it will also do map translation for tiled maps, returning
234	* new values into newmap, nx, and ny. Any and all of those	36	* new values into newmap, nx, and ny. Any and all of those
…		…
239	* don't expect to insert/remove anything from those spaces.	41	* don't expect to insert/remove anything from those spaces.
240	*/	42	*/
241	int	43	int
242	get_map_flags (maptile *oldmap, maptile **newmap, sint16 x, sint16 y, sint16 *nx, sint16 *ny)	44	get_map_flags (maptile *oldmap, maptile **newmap, sint16 x, sint16 y, sint16 *nx, sint16 *ny)
243	{	45	{
244	sint16 newx, newy;
245	int retval = 0;
246	maptile *mp;
247
248	newx = x;	46	sint16 newx = x;
249	newy = y;	47	sint16 newy = y;
250		48
251	mp = get_map_from_coord (oldmap, &newx, &newy);	49	maptile *mp = get_map_from_coord (oldmap, &newx, &newy);
252		50
253	if (!mp)	51	if (!mp)
254	return P_OUT_OF_MAP;	52	return P_OUT_OF_MAP;
255
256	if (mp != oldmap)
257	retval |= P_NEW_MAP;
258		53
259	if (newmap) *newmap = mp;	54	if (newmap) *newmap = mp;
260	if (nx) *nx = newx;	55	if (nx) *nx = newx;
261	if (ny) *ny = newy;	56	if (ny) *ny = newy;
262		57
263	return retval | mp->at (newx, newy).flags ();	58	return mp->at (newx, newy).flags () | (mp != oldmap ? P_NEW_MAP : 0);
264	}	59	}
265		60
266	/*	61	/*
267	* Returns true if the given coordinate is blocked except by the	62	* Returns true if the given coordinate is blocked except by the
268	* object passed is not blocking. This is used with	63	* object passed is not blocking. This is used with
…		…
276	* by the caller.	71	* by the caller.
277	*/	72	*/
278	int	73	int
279	blocked_link (object *ob, maptile *m, int sx, int sy)	74	blocked_link (object *ob, maptile *m, int sx, int sy)
280	{	75	{
281	object *tmp;
282	int mflags, blocked;
283
284	/* Make sure the coordinates are valid - they should be, as caller should	76	/* Make sure the coordinates are valid - they should be, as caller should
285	* have already checked this.	77	* have already checked this.
286	*/	78	*/
287	if (OUT_OF_REAL_MAP (m, sx, sy))	79	if (OUT_OF_REAL_MAP (m, sx, sy))
288	{	80	{
…		…
291	}	83	}
292		84
293	/* Save some cycles - instead of calling get_map_flags(), just get the value	85	/* Save some cycles - instead of calling get_map_flags(), just get the value
294	* directly.	86	* directly.
295	*/	87	*/
296	mflags = m->at (sx, sy).flags ();	88	mapspace &ms = m->at (sx, sy);
297		89
298	blocked = GET_MAP_MOVE_BLOCK (m, sx, sy);	90	int mflags = ms.flags ();
		91	int blocked = ms.move_block;
299		92
300	/* If space is currently not blocked by anything, no need to	93	/* If space is currently not blocked by anything, no need to
301	* go further. Not true for players - all sorts of special	94	* go further. Not true for players - all sorts of special
302	* things we need to do for players.	95	* things we need to do for players.
303	*/	96	*/
304	if (ob->type != PLAYER && !(mflags & P_IS_ALIVE) && (blocked == 0))	97	if (ob->type != PLAYER && !(mflags & P_IS_ALIVE) && (blocked == 0))
305	return 0;	98	return 0;
306		99
307	/* if there isn't anytyhing alive on this space, and this space isn't	100	/* 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	101	* 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	102	* 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	103	* or another. Likewise, only if something is blocking us do we
311	* need to investigate if there is a special circumstance that would	104	* need to investigate if there is a special circumstance that would
312	* let the player through (inventory checkers for example)	105	* let the player through (inventory checkers for example)
313	*/	106	*/
314	if (!(mflags & P_IS_ALIVE) && !OB_TYPE_MOVE_BLOCK (ob, blocked))	107	if (!(mflags & P_IS_ALIVE) && !OB_TYPE_MOVE_BLOCK (ob, blocked))
315	return 0;	108	return 0;
316		109
317	if (ob->head != NULL)
318	ob = ob->head;	110	ob = ob->head_ ();
319		111
320	/* We basically go through the stack of objects, and if there is	112	/* 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	113	* some other object that has NO_PASS or FLAG_ALIVE set, return
322	* true. If we get through the entire stack, that must mean	114	* true. If we get through the entire stack, that must mean
323	* ob is blocking it, so return 0.	115	* ob is blocking it, so return 0.
324	*/	116	*/
325	for (tmp = GET_MAP_OB (m, sx, sy); tmp; tmp = tmp->above)	117	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
326	{	118	{
		119	bool block = OB_MOVE_BLOCK (ob, tmp);
327		120
328	/* This must be before the checks below. Code for inventory checkers. */	121	/* This must be before the checks below. Code for inventory checkers. */
329	if (tmp->type == CHECK_INV && OB_MOVE_BLOCK (ob, tmp))	122	if (block && tmp->type == CHECK_INV)
330	{	123	{
		124	bool have = check_inv_recursive (ob, tmp);
		125
331	/* If last_sp is set, the player/monster needs an object,	126	/* If last_sp is set, the player/monster needs an object,
332	* so we check for it. If they don't have it, they can't	127	* so we check for it. If they don't have it, they can't
333	* pass through this space.	128	* pass through this space.
334	*/	129	*/
335	if (tmp->last_sp)	130	if (tmp->last_sp)
336	{	131	{
337	if (check_inv_recursive (ob, tmp) == NULL)	132	if (!have)
338	return 1;	133	return 1;
339	else
340	continue;
341	}	134	}
342	else	135	else
343	{	136	{
344	/* In this case, the player must not have the object -	137	/* In this case, the player must not have the object -
345	* if they do, they can't pass through.	138	* if they do, they can't pass through.
346	*/	139	*/
347	if (check_inv_recursive (ob, tmp) != NULL) /* player has object */	140	if (have)
348	return 1;	141	return 1;
349	else
350	continue;
351	}	142	}
352	} /* if check_inv */	143	}
		144	else if (block && tmp->type == T_MATCH)
		145	{
		146	//TODO
		147	}
353	else	148	else
354	{	149	{
355	/* Broke apart a big nasty if into several here to make	150	/* Broke apart a big nasty if into several here to make
356	* this more readable. first check - if the space blocks	151	* this more readable. first check - if the space blocks
357	* movement, can't move here.	152	* movement, can't move here.
358	* second - if a monster, can't move there, unles it is a	153	* second - if a monster, can't move there, unless it is a
359	* hidden dm	154	* dm.
360	*/	155	*/
361	if (OB_MOVE_BLOCK (ob, tmp))	156	if (block)
362	return 1;	157	return 1;
363	if (QUERY_FLAG (tmp, FLAG_ALIVE) && tmp->head != ob && tmp != ob &&	158
364	tmp->type != DOOR && !(QUERY_FLAG (tmp, FLAG_WIZ) && tmp->contr->hidden))	159	if (tmp->flag [FLAG_ALIVE]
		160	&& tmp->head_ () != ob
		161	&& tmp != ob
		162	&& tmp->type != DOOR
		163	&& !tmp->flag [FLAG_WIZ])
365	return 1;	164	return 1;
366	}	165	}
367
368	}	166	}
		167
369	return 0;	168	return 0;
370	}	169	}
371		170
372
373	/*	171	/*
374	* Returns true if the given object can't fit in the given spot.	172	* Returns qthe blocking object if the given object can't fit in the given
375	* This is meant for multi space objects - for single space objecs,	173	* spot. This is meant for multi space objects - for single space objecs,
376	* just calling get_map_blocked and checking that against movement type	174	* just calling get_map_blocked and checking that against movement type
377	* of object. This function goes through all the parts of the	175	* of object. This function goes through all the parts of the multipart
378	* multipart object and makes sure they can be inserted.	176	* object and makes sure they can be inserted.
379	*	177	*
380	* While this doesn't call out of map, the get_map_flags does.	178	* While this doesn't call out of map, the get_map_flags does.
381	*	179	*
382	* This function has been used to deprecate arch_out_of_map -	180	* This function has been used to deprecate arch_out_of_map -
383	* this function also does that check, and since in most cases,	181	* this function also does that check, and since in most cases,
…		…
394	*	192	*
395	* Note this used to be arch_blocked, but with new movement	193	* Note this used to be arch_blocked, but with new movement
396	* code, we need to have actual object to check its move_type	194	* code, we need to have actual object to check its move_type
397	* against the move_block values.	195	* against the move_block values.
398	*/	196	*/
399	int	197	bool
400	ob_blocked (const object *ob, maptile *m, sint16 x, sint16 y)	198	object::blocked (maptile *m, int x, int y) const
401	{	199	{
402	archetype *tmp;	200	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	}	201	{
		202	mapxy pos (m, x + tmp->x, y + tmp->y);
416		203
417	for (tmp = ob->arch; tmp; tmp = tmp->more)	204	if (!pos.normalise ())
418	{	205	return 1;
419	flag = get_map_flags (m, &m1, x + tmp->clone.x, y + tmp->clone.y, &sx, &sy);
420		206
421	if (flag & P_OUT_OF_MAP)	207	mapspace &ms = *pos;
422	return P_OUT_OF_MAP;	208
423	if (flag & P_IS_ALIVE)	209	if (ms.flags () & P_IS_ALIVE)
424	return P_IS_ALIVE;	210	return 1;
425		211
426	mapspace &ms = m1->at (sx, sy);	212	/* However, often ob doesn't have any move type
427		213	* (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.	214	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.
432	*/	215	*/
433
434	if (ob->move_type == 0 && ms.move_block != MOVE_ALL)	216	if (!move_type && ms.move_block != MOVE_ALL)
435	continue;	217	continue;
436		218
437	/* Note it is intentional that we check ob - the movement type of the	219	/* Note it is intentional that we check ob - the movement type of the
438	* head of the object should correspond for the entire object.	220	* head of the object should correspond for the entire object.
439	*/	221	*/
440	if (OB_TYPE_MOVE_BLOCK (ob, ms.move_block))	222	if (ms.blocks (move_type))
441	return P_NO_PASS;	223	return 1;
442	}	224	}
443		225
444	return 0;	226	return 0;
445	}	227	}
446		228
…		…
448	* into inventory, but just links them. What this does is go through	230	* into inventory, but just links them. What this does is go through
449	* and insert them properly.	231	* and insert them properly.
450	* The object 'container' is the object that contains the inventory.	232	* The object 'container' is the object that contains the inventory.
451	* This is needed so that we can update the containers weight.	233	* This is needed so that we can update the containers weight.
452	*/	234	*/
453
454	void	235	void
455	fix_container (object *container)	236	fix_container (object *container)
456	{	237	{
457	object *tmp = container->inv, *next;	238	object *tmp = container->inv, *next;
458		239
459	container->inv = NULL;	240	container->inv = 0;
460	while (tmp != NULL)	241	while (tmp)
461	{	242	{
462	next = tmp->below;	243	next = tmp->below;
463	if (tmp->inv)	244	if (tmp->inv)
464	fix_container (tmp);	245	fix_container (tmp);
		246
465	(void) insert_ob_in_ob (tmp, container);	247	insert_ob_in_ob (tmp, container);
466	tmp = next;	248	tmp = next;
467	}	249	}
		250
468	/* sum_weight will go through and calculate what all the containers are	251	// go through and calculate what all the containers are carrying.
469	* carrying.	252	//TODO: remove
470	*/	253	container->update_weight ();
471	sum_weight (container);	254	}
		255
		256	void
		257	maptile::set_object_flag (int flag, int value)
		258	{
		259	if (!spaces)
		260	return;
		261
		262	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		263	for (object *tmp = ms->bot; tmp; tmp = tmp->above)
		264	tmp->flag [flag] = value;
		265	}
		266
		267	void
		268	maptile::post_load_original ()
		269	{
		270	if (!spaces)
		271	return;
		272
		273	set_object_flag (FLAG_OBJ_ORIGINAL);
		274
		275	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		276	for (object *tmp = ms->bot; tmp; tmp = tmp->above)
		277	INVOKE_OBJECT (RESET, tmp);
472	}	278	}
473		279
474	/* link_multipart_objects go through all the objects on the map looking	280	/* 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	281	* 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	282	* 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	283	* they are saved).
478	* the more sections and not re-add sections for them.
479	*/	284	*/
480		285	void
481	static void	286	maptile::link_multipart_objects ()
482	link_multipart_objects (maptile *m)
483	{	287	{
484	int x, y;	288	if (!spaces)
485	object *tmp, *op, *last, *above;	289	return;
486	archetype *at;
487		290
488	for (x = 0; x < MAP_WIDTH (m); x++)	291	for (mapspace *ms = spaces + size (); ms-- > spaces; )
489	for (y = 0; y < MAP_HEIGHT (m); y++)	292	{
490	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = above)	293	object *op = ms->bot;
		294	while (op)
491	{	295	{
492	above = tmp->above;
493
494	/* already multipart - don't do anything more */	296	/* already multipart - don't do anything more */
495	if (tmp->head || tmp->more)	297	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	{	298	{
503	op = arch_to_object (at);	299	op->remove ();
		300	op->expand_tail ();
504		301
505	/* update x,y coordinates */	302	// FIXME: INS_ON_TOP is just a workaround for the pentagram vs.
506	op->x += tmp->x;	303	// multi-tile monster bug, where INS_ABOVE_FLOOR_ONLY put the monsters
507	op->y += tmp->y;	304	// below the pentagrams... hopefully INS_ON_TOP doesn't break anything
508	op->head = tmp;	305	insert (op, op->x, op->y, 0, INS_NO_MERGE | INS_ON_TOP | INS_NO_WALK_ON);
509	op->map = m;	306
510	last->more = op;	307	op = ms->bot; // we are mutating the mapspace too much with INS_ON_TOP
511	op->name = tmp->name;	308	// 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	*/	309	}
518	insert_ob_in_map (op, op->map, tmp, INS_NO_MERGE | INS_ABOVE_FLOOR_ONLY | INS_NO_WALK_ON);	310	else
519	} /* for at = tmp->arch->more */	311	op = op->above;
520	} /* for objects on this space */	312	}
		313	}
521	}	314	}
522		315
523	/*	316	/*
524	* Loads (ands parses) the objects into a given map from the specified	317	* Loads (ands parses) the objects into a given map from the specified
525	* file pointer.	318	* file pointer.
526	* mapflags is the same as we get with load_original_map
527	*/	319	*/
528	void	320	bool
529	load_objects (maptile *m, object_thawer & fp, int mapflags)	321	maptile::_load_objects (object_thawer &f)
530	{	322	{
531	int i, j;	323	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	{	324	{
540	/* if the archetype for the object is null, means that we	325	coroapi::cede_to_tick (); // cede once in a while
541	* got an invalid object. Don't do anything with it - the game	326
542	* or editor will not be able to do anything with it either.	327	switch (f.kw)
543	*/
544	if (op->arch == NULL)
545	{	328	{
546	LOG (llevDebug, "Discarding object without arch: %s\n", op->name ? (const char *) op->name : "(null)");	329	case KW_arch:
		330	if (object *op = object::read (f, this))
		331	{
		332	// TODO: why?
		333	if (op->inv)
		334	op->update_weight ();
		335
		336	if (IN_RANGE_EXC (op->x, 0, width) && IN_RANGE_EXC (op->y, 0, height))
		337	{
		338	// we insert manually because
		339	// a) its way faster
		340	// b) we remove manually, too, and there are good reasons for that
		341	// c) it's correct
		342	mapspace &ms = at (op->x, op->y);
		343
		344	op->flag [FLAG_REMOVED] = false;
		345
		346	op->above = 0;
		347	op->below = ms.top;
		348
		349	*(ms.top ? &ms.top->above : &ms.bot) = op;
		350
		351	ms.top = op;
		352	ms.flags_ = 0;
		353	}
		354	else
		355	{
		356	f.parse_warn (format ("object %s out of range", op->debug_desc ()));
		357	op->destroy ();
		358	}
		359	}
		360
547	continue;	361	continue;
548	}
549		362
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:	363	case KW_EOF:
566	insert_ob_in_map (op, m, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ABOVE_FLOOR_ONLY);	364	return true;
567	op->head = prev, last_more->more = op, last_more = op;	365
		366	default:
		367	if (!f.parse_error ("map file"))
		368	return false;
568	break;	369	break;
569	}	370	}
570		371
571	if (mapflags & MAP_STYLE)	372	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	{	373	}
580	for (j = 0; j < m->height; j++)	374
		375	return true;
		376	}
		377
		378	void
		379	maptile::activate ()
		380	{
		381	if (spaces)
		382	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		383	for (object *op = ms->bot; op; op = op->above)
		384	op->activate_recursive ();
		385	}
		386
		387	void
		388	maptile::deactivate ()
		389	{
		390	if (spaces)
		391	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		392	for (object *op = ms->bot; op; op = op->above)
		393	op->deactivate_recursive ();
		394	}
		395
		396	bool
		397	maptile::_save_objects (object_freezer &f, int flags)
		398	{
		399	coroapi::cede_to_tick ();
		400
		401	if (flags & IO_HEADER)
		402	_save_header (f);
		403
		404	if (!spaces)
		405	return false;
		406
		407	for (int i = 0; i < size (); ++i)
		408	{
		409	bool unique = 0;
		410
		411	for (object *op = spaces [i].bot; op; op = op->above)
581	{	412	{
582	unique = 0;	413	unique |= op->flag [FLAG_UNIQUE] && op->flag [FLAG_IS_FLOOR];
583	/* check for unique items, or unique squares */	414
584	for (otmp = GET_MAP_OB (m, i, j); otmp; otmp = otmp->above)	415	if (expect_false (!op->can_map_save ()))
		416	continue;
		417
		418	if (expect_false (unique || op->flag [FLAG_UNIQUE]))
585	{	419	{
586	if (QUERY_FLAG (otmp, FLAG_UNIQUE) || QUERY_FLAG (otmp, FLAG_OBJ_SAVE_ON_OVL))	420	if (flags & IO_UNIQUES)
587	unique = 1;	421	op->write (f);
588
589	if (!(mapflags & (MAP_OVERLAY | MAP_PLAYER_UNIQUE) || unique))
590	SET_FLAG (otmp, FLAG_OBJ_ORIGINAL);
591	}	422	}
		423	else if (expect_true (flags & IO_OBJECTS))
		424	op->write (f);
592	}	425	}
593	}	426	}
594		427
595	op->destroy ();	428	coroapi::cede_to_tick ();
596	link_multipart_objects (m);
597	}
598		429
599	/* This saves all the objects on the map in a non destructive fashion.	430	return true;
600	* Modified by MSW 2001-07-01 to do in a single pass - reduces code,	431	}
601	* and we only save the head of multi part objects - this is needed
602	* in order to do map tiling properly.
603	*/
604	void
605	save_objects (maptile *m, object_freezer & fp, object_freezer & fp2, int flag)
606	{
607	int i, j = 0, unique = 0;
608	object *op;
609		432
610	/* first pass - save one-part objects */	433	bool
611	for (i = 0; i < MAP_WIDTH (m); i++)	434	maptile::_save_objects (const char *path, int flags)
612	for (j = 0; j < MAP_HEIGHT (m); j++)	435	{
613	{	436	object_freezer freezer;
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		437
620	if (op->type == PLAYER)	438	if (!_save_objects (freezer, flags))
621	continue;	439	return false;
622		440
623	if (op->head || op->owner)	441	return freezer.save (path);
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	in_memory = MAP_SWAPPED;
		447
637	/* The maps used to pick up default x and y values from the	448	/* The maps used to pick up default x and y values from the
638	* map archetype. Mimic that behaviour.	449	* map archetype. Mimic that behaviour.
639	*/	450	*/
640	MAP_WIDTH (this) = 16;	451	width = 16;
641	MAP_HEIGHT (this) = 16;	452	height = 16;
642	MAP_RESET_TIMEOUT (this) = 0;	453	timeout = 300;
643	MAP_TIMEOUT (this) = 300;	454	max_nrof = 1000; // 1000 items of anything
644	MAP_ENTER_X (this) = 0;	455	max_volume = 2000000; // 2m³
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	}	456	}
650		457
651	/*	458	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	{	459	{
659	maptile *mp, *map = new maptile;	460	in_memory = MAP_SWAPPED;
660		461
661	for (mp = first_map; mp && mp->next; mp = mp->next);	462	width = w;
		463	height = h;
		464	reset_timeout = 0;
		465	timeout = 300;
		466	enter_x = 0;
		467	enter_y = 0;
662		468
663	if (mp == NULL)	469	alloc ();
664	first_map = map;
665	else
666	mp->next = map;
667
668	return map;
669	}	470	}
670		471
671	/*	472	/*
672	* Allocates the arrays contained in a maptile.	473	* Allocates the arrays contained in a maptile.
673	* This basically allocates the dynamic array of spaces for the	474	* This basically allocates the dynamic array of spaces for the
674	* map.	475	* map.
675	*/	476	*/
676	void	477	void
677	maptile::allocate ()	478	maptile::alloc ()
678	{	479	{
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)	480	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;	481	return;
		482
		483	spaces = salloc0<mapspace> (size ());
712	}	484	}
713		485
714	/* Takes a string from a map definition and outputs a pointer to the array of shopitems	486	/* 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	487	* corresponding to that string. Memory is allocated for this, it must be freed
716	* at a later date.	488	* at a later date.
717	* Called by parse_map_headers below.	489	* Called by parse_map_headers below.
718	*/	490	*/
719
720	static shopitems *	491	static shopitems *
721	parse_shop_string (const char *input_string)	492	parse_shop_string (const char *input_string)
722	{	493	{
723	char *shop_string, *p, *q, *next_semicolon, *next_colon;	494	char *shop_string, *p, *q, *next_semicolon, *next_colon;
724	shopitems *items = NULL;	495	shopitems *items = NULL;
…		…
733	p = strchr (p, ';');	504	p = strchr (p, ';');
734	number_of_entries++;	505	number_of_entries++;
735	if (p)	506	if (p)
736	p++;	507	p++;
737	}	508	}
		509
738	p = shop_string;	510	p = shop_string;
739	strip_endline (p);	511	strip_endline (p);
740	items = new shopitems[number_of_entries + 1];	512	items = new shopitems[number_of_entries + 1];
741	for (i = 0; i < number_of_entries; i++)	513	for (i = 0; i < number_of_entries; i++)
742	{	514	{
743	if (!p)	515	if (!p)
744	{	516	{
745	LOG (llevError, "parse_shop_string: I seem to have run out of string, that shouldn't happen.\n");	517	LOG (llevError, "parse_shop_string: I seem to have run out of string, that shouldn't happen.\n");
746	break;	518	break;
747	}	519	}
		520
748	next_semicolon = strchr (p, ';');	521	next_semicolon = strchr (p, ';');
749	next_colon = strchr (p, ':');	522	next_colon = strchr (p, ':');
750	/* if there is a stregth specified, figure out what it is, we'll need it soon. */	523	/* 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))	524	if (next_colon && (!next_semicolon || next_colon < next_semicolon))
752	items[i].strength = atoi (strchr (p, ':') + 1);	525	items[i].strength = atoi (strchr (p, ':') + 1);
…		…
779	* the next entry while we're at it, better print a warning	552	* the next entry while we're at it, better print a warning
780	*/	553	*/
781	LOG (llevError, "invalid type %s defined in shopitems in string %s\n", p, input_string);	554	LOG (llevError, "invalid type %s defined in shopitems in string %s\n", p, input_string);
782	}	555	}
783	}	556	}
		557
784	items[i].index = number_of_entries;	558	items[i].index = number_of_entries;
785	if (next_semicolon)	559	if (next_semicolon)
786	p = ++next_semicolon;	560	p = ++next_semicolon;
787	else	561	else
788	p = NULL;	562	p = NULL;
789	}	563	}
		564
790	free (shop_string);	565	free (shop_string);
791	return items;	566	return items;
792	}	567	}
793		568
794	/* opposite of parse string, this puts the string that was originally fed in to	569	/* opposite of parse string, this puts the string that was originally fed in to
795	* the map (or something equivilent) into output_string. */	570	* the map (or something equivilent) into output_string. */
796	static void	571	static const char *
797	print_shop_string (maptile *m, char *output_string)	572	print_shop_string (maptile *m)
798	{	573	{
799	int i;	574	static dynbuf_text buf; buf.clear ();
800	char tmp[MAX_BUF];
801		575
802	strcpy (output_string, "");
803	for (i = 0; i < m->shopitems[0].index; i++)	576	for (int i = 0; i < m->shopitems[0].index; i++)
804	{	577	{
805	if (m->shopitems[i].typenum)	578	if (m->shopitems[i].typenum)
806	{	579	{
807	if (m->shopitems[i].strength)	580	if (m->shopitems[i].strength)
808	{
809	sprintf (tmp, "%s:%d;", m->shopitems[i].name, m->shopitems[i].strength);	581	buf.printf ("%s:%d;", m->shopitems[i].name, m->shopitems[i].strength);
810	}
811	else	582	else
812	sprintf (tmp, "%s;", m->shopitems[i].name);	583	buf.printf ("%s;", m->shopitems[i].name);
813	}	584	}
814	else	585	else
815	{	586	{
816	if (m->shopitems[i].strength)	587	if (m->shopitems[i].strength)
817	{
818	sprintf (tmp, "*:%d;", m->shopitems[i].strength);	588	buf.printf ("*:%d;", m->shopitems[i].strength);
819	}
820	else	589	else
821	sprintf (tmp, "*");	590	buf.printf ("*");
822	}	591	}
823	strcat (output_string, tmp);
824	}	592	}
		593
		594	return buf;
825	}	595	}
826		596
827	/* This loads the header information of the map. The header	597	/* This loads the header information of the map. The header
828	* contains things like difficulty, size, timeout, etc.	598	* contains things like difficulty, size, timeout, etc.
829	* this used to be stored in the map object, but with the	599	* this used to be stored in the map object, but with the
…		…
832	* put all the stuff in the map object so that names actually make	602	* put all the stuff in the map object so that names actually make
833	* sense.	603	* sense.
834	* This could be done in lex (like the object loader), but I think	604	* 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.	605	* currently, there are few enough fields this is not a big deal.
836	* MSW 2001-07-01	606	* MSW 2001-07-01
837	* return 0 on success, 1 on failure.
838	*/	607	*/
839		608	bool
840	static int	609	maptile::_load_header (object_thawer &thawer)
841	load_map_header (object_thawer & fp, maptile *m)
842	{	610	{
843	char buf[HUGE_BUF], msgbuf[HUGE_BUF], maplorebuf[HUGE_BUF], *key = NULL, *value, *end;	611	for (;;)
844	int msgpos = 0;
845	int maplorepos = 0;
846
847	while (fgets (buf, HUGE_BUF, fp) != NULL)
848	{	612	{
849	buf[HUGE_BUF - 1] = 0;	613	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	{	614	{
862	if ((end = strchr (key, '\n')))	615	case KW_msg:
863	*end = 0;	616	thawer.get_ml (KW_endmsg, msg);
		617	break;
		618
		619	case KW_lore: // CF+ extension
		620	thawer.get_ml (KW_endlore, maplore);
		621	break;
		622
		623	case KW_maplore:
		624	thawer.get_ml (KW_endmaplore, maplore);
		625	break;
		626
		627	case KW_arch:
		628	if (strcmp (thawer.get_str (), "map"))
		629	LOG (llevError, "%s: loading map and got a non 'arch map' line (arch %s), skipping.\n", &path, thawer.get_str ());
		630	break;
		631
		632	case KW_oid:
		633	thawer.get (this, thawer.get_sint32 ());
		634	break;
		635
		636	case KW_file_format_version: break; // nop
		637
		638	case KW_name: thawer.get (name); break;
		639	case KW_attach: thawer.get (attach); break;
		640	case KW_reset_time: thawer.get (reset_time); break;
		641	case KW_shopgreed: thawer.get (shopgreed); break;
		642	case KW_shopmin: thawer.get (shopmin); break;
		643	case KW_shopmax: thawer.get (shopmax); break;
		644	case KW_shoprace: thawer.get (shoprace); break;
		645	case KW_outdoor: thawer.get (outdoor); break;
		646	case KW_temp: thawer.get (temp); break;
		647	case KW_pressure: thawer.get (pressure); break;
		648	case KW_humid: thawer.get (humid); break;
		649	case KW_windspeed: thawer.get (windspeed); break;
		650	case KW_winddir: thawer.get (winddir); break;
		651	case KW_sky: thawer.get (sky); break;
		652
		653	case KW_per_player: thawer.get (per_player); break;
		654	case KW_per_party: thawer.get (per_party); break;
		655	case KW_no_reset: thawer.get (no_reset); break;
		656	case KW_no_drop: thawer.get (no_drop); break;
		657
		658	case KW_region: default_region = region::find (thawer.get_str ()); break;
		659	case KW_shopitems: shopitems = parse_shop_string (thawer.get_str ()); break;
		660
		661	// old names new names
		662	case KW_hp: case KW_enter_x: thawer.get (enter_x); break;
		663	case KW_sp: case KW_enter_y: thawer.get (enter_y); break;
		664	case KW_x: case KW_width: thawer.get (width); break;
		665	case KW_y: case KW_height: thawer.get (height); break;
		666	case KW_weight: case KW_reset_timeout: thawer.get (reset_timeout); break;
		667	case KW_value: case KW_swap_time: thawer.get (timeout); break;
		668	case KW_level: case KW_difficulty: thawer.get (difficulty); difficulty = clamp (difficulty, 1, settings.max_level); break;
		669	case KW_invisible: case KW_darkness: thawer.get (darkness); break;
		670	case KW_stand_still: case KW_fixed_resettime: thawer.get (fixed_resettime); break;
		671
		672	case KW_tile_path_1: thawer.get (tile_path [0]); break;
		673	case KW_tile_path_2: thawer.get (tile_path [1]); break;
		674	case KW_tile_path_3: thawer.get (tile_path [2]); break;
		675	case KW_tile_path_4: thawer.get (tile_path [3]); break;
		676
		677	case KW_ERROR:
		678	set_key_text (thawer.kw_str, thawer.value);
		679	break;
		680
		681	case KW_end:
		682	thawer.next ();
		683	return true;
		684
		685	default:
		686	if (!thawer.parse_error ("map", 0))
		687	return false;
		688	break;
864	}	689	}
865	else
866	{
867	*value = 0;
868	value++;
869	end = strchr (value, '\n');
870		690
871	while (isspace (*value))	691	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	{	692	}
1082	LOG (llevError, "Got premature eof on map header!\n");
1083	return 1;
1084	}
1085		693
1086	return 0;	694	abort ();
1087	}
1088
1089	/*
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	}	695	}
1231		696
1232	/******************************************************************************	697	/******************************************************************************
1233	* This is the start of unique map handling code	698	* This is the start of unique map handling code
1234	*****************************************************************************/	699	*****************************************************************************/
1235		700
1236	/* This goes through map 'm' and removed any unique items on the map. */	701	/* This goes through the maptile and removed any unique items on the map. */
1237	static void	702	void
1238	delete_unique_items (maptile *m)	703	maptile::clear_unique_items ()
1239	{	704	{
1240	int i, j, unique;	705	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	{	706	{
1246	unique = 0;	707	int unique = 0;
		708	for (object *op = spaces [i].bot; op; )
		709	{
		710	object *above = op->above;
1247		711
1248	for (op = GET_MAP_OB (m, i, j); op; op = next)	712	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))
		713	unique = 1;
		714
		715	if (op->head_ () == op && (QUERY_FLAG (op, FLAG_UNIQUE) || unique))
		716	op->destroy ();
		717
		718	op = above;
		719	}
		720	}
		721	}
		722
		723	bool
		724	maptile::_save_header (object_freezer &freezer)
		725	{
		726	#define MAP_OUT(k) freezer.put (KW_ ## k, k)
		727	#define MAP_OUT2(k,v) freezer.put (KW_ ## k, v)
		728
		729	MAP_OUT2 (arch, "map");
		730
		731	if (name) MAP_OUT (name);
		732	MAP_OUT (swap_time);
		733	MAP_OUT (reset_time);
		734	MAP_OUT (reset_timeout);
		735	MAP_OUT (fixed_resettime);
		736	MAP_OUT (no_reset);
		737	MAP_OUT (no_drop);
		738	MAP_OUT (difficulty);
		739	if (default_region) MAP_OUT2 (region, default_region->name);
		740
		741	if (shopitems) MAP_OUT2 (shopitems, print_shop_string (this));
		742	MAP_OUT (shopgreed);
		743	MAP_OUT (shopmin);
		744	MAP_OUT (shopmax);
		745	if (shoprace) MAP_OUT (shoprace);
		746
		747	MAP_OUT (darkness);
		748	MAP_OUT (width);
		749	MAP_OUT (height);
		750	MAP_OUT (enter_x);
		751	MAP_OUT (enter_y);
		752
		753	if (msg) freezer.put (KW_msg , KW_endmsg , msg);
		754	if (maplore) freezer.put (KW_maplore, KW_endmaplore, maplore);
		755
		756	MAP_OUT (outdoor);
		757	MAP_OUT (temp);
		758	MAP_OUT (pressure);
		759	MAP_OUT (humid);
		760	MAP_OUT (windspeed);
		761	MAP_OUT (winddir);
		762	MAP_OUT (sky);
		763
		764	MAP_OUT (per_player);
		765	MAP_OUT (per_party);
		766
		767	if (tile_path [0]) MAP_OUT2 (tile_path_1, tile_path [0]);
		768	if (tile_path [1]) MAP_OUT2 (tile_path_2, tile_path [1]);
		769	if (tile_path [2]) MAP_OUT2 (tile_path_3, tile_path [2]);
		770	if (tile_path [3]) MAP_OUT2 (tile_path_4, tile_path [3]);
		771
		772	freezer.put (this);
		773	freezer.put (KW_end);
		774
		775	return true;
		776	}
		777
		778	bool
		779	maptile::_save_header (const char *path)
		780	{
		781	object_freezer freezer;
		782
		783	if (!_save_header (freezer))
		784	return false;
		785
		786	return freezer.save (path);
		787	}
		788
		789	/*
		790	* Remove and free all objects in the given map.
		791	*/
		792	void
		793	maptile::clear ()
		794	{
		795	if (spaces)
		796	{
		797	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		798	while (object *op = ms->bot)
1249	{	799	{
		800	// manually remove, as to not trigger anything
1250	next = op->above;	801	if (ms->bot = op->above)
		802	ms->bot->below = 0;
1251		803
1252	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))	804	op->flag [FLAG_REMOVED] = true;
1253	unique = 1;
1254		805
1255	if (op->head == NULL && (QUERY_FLAG (op, FLAG_UNIQUE) || unique))	806	object *head = op->head_ ();
		807	if (op == head)
		808	op->destroy ();
		809	else if (head->map != op->map)
1256	{	810	{
1257	op->destroy_inv (false);	811	LOG (llevDebug, "bad luck for object crossing map borders: %s", head->debug_desc ());
1258	op->destroy ();	812	head->destroy ();
1259	}	813	}
1260	}	814	}
		815
		816	sfree0 (spaces, size ());
1261	}	817	}
1262	}
1263		818
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)	819	if (buttons)
1507	free_objectlinkpt (m->buttons);	820	free_objectlinkpt (buttons), buttons = 0;
1508		821
1509	m->buttons = NULL;	822	sfree0 (regions, size ());
		823	delete [] regionmap; regionmap = 0;
		824	}
		825
		826	void
		827	maptile::clear_header ()
		828	{
		829	name = 0;
		830	msg = 0;
		831	maplore = 0;
		832	shoprace = 0;
		833	delete [] shopitems, shopitems = 0;
1510		834
1511	for (int i = 0; i < 4; i++)	835	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;	836	tile_path [i] = 0;
1517	}
1518
1519	m->in_memory = MAP_SWAPPED;
1520
1521	#undef FREE_AND_CLEAR
1522	}	837	}
1523		838
1524	maptile::~maptile ()	839	maptile::~maptile ()
1525	{	840	{
1526	free_map (this, 1);	841	assert (destroyed ());
1527	free (tmpname);
1528	}	842	}
1529		843
1530	void	844	void
1531	maptile::do_destroy ()	845	maptile::clear_links_to (maptile *m)
1532	{	846	{
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	847	/* We need to look through all the maps and see if any maps
1538	* are pointing at this one for tiling information. Since	848	* are pointing at this one for tiling information. Since
1539	* tiling can be asymetric, we just can not look to see which	849	* tiling can be asymetric, we just can not look to see which
1540	* maps this map tiles with and clears those.	850	* maps this map tiles with and clears those.
1541	*/	851	*/
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++)	852	for (int i = 0; i < 4; i++)
1545	if (m->tile_map[i] == this)	853	if (tile_map[i] == m)
1546	m->tile_map[i] = 0;	854	tile_map[i] = 0;
		855	}
1547		856
1548	if (first_map == this)	857	void
1549	first_map = next;	858	maptile::do_destroy ()
1550	else	859	{
1551	for (maptile *m = first_map; m; m = m->next)	860	attachable::do_destroy ();
1552	if (m->next = this)	861
		862	clear ();
		863	}
		864
		865	/* decay and destroy perishable items in a map */
		866	void
		867	maptile::do_decay_objects ()
		868	{
		869	if (!spaces)
		870	return;
		871
		872	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		873	for (object *above, *op = ms->bot; op; op = above)
1553	{	874	{
1554	m->next = next;	875	above = op->above;
		876
		877	bool destroy = 0;
		878
		879	// do not decay anything above unique floor tiles (yet :)
		880	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))
1555	break;	881	break;
1556	}
1557	}
1558		882
1559	//TODO: must go	883	if (QUERY_FLAG (op, FLAG_IS_FLOOR)
1560	void	884	|| QUERY_FLAG (op, FLAG_OBJ_ORIGINAL)
1561	delete_map (maptile *m)	885	|| QUERY_FLAG (op, FLAG_UNIQUE)
1562	{	886	|| QUERY_FLAG (op, FLAG_OVERLAY_FLOOR)
1563	if (m)	887	|| QUERY_FLAG (op, FLAG_UNPAID)
1564	m->destroy ();	888	|| op->is_alive ())
1565	}	889	; // do not decay
1566		890	else if (op->is_weapon ())
1567	/*
1568	* Makes sure the given map is loaded and swapped in.
1569	* name is path name of the map.
1570	* flags meaning:
1571	* 0x1 (MAP_FLUSH): flush the map - always load from the map directory,
1572	* and don't do unique items or the like.
1573	* 0x2 (MAP_PLAYER_UNIQUE) - this is a unique map for each player.
1574	* dont do any more name translation on it.
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	{	891	{
1604	clean_tmp_map (m); /* Doesn't make much difference */	892	op->stats.dam--;
1605	delete_map (m);	893	if (op->stats.dam < 0)
		894	destroy = 1;
1606	}	895	}
1607		896	else if (op->is_armor ())
1608	/* create and load a map */	897	{
1609	if (flags & MAP_PLAYER_UNIQUE)	898	op->stats.ac--;
1610	LOG (llevDebug, "Trying to load map %s.\n", name);	899	if (op->stats.ac < 0)
		900	destroy = 1;
		901	}
		902	else if (op->type == FOOD)
		903	{
		904	op->stats.food -= rndm (5, 20);
		905	if (op->stats.food < 0)
		906	destroy = 1;
		907	}
1611	else	908	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	{	909	{
1629	m = load_overlay_map (name, m);	910	int mat = op->materials;
1630	if (m == NULL)	911
1631	return NULL;	912	if (mat & M_PAPER
		913	|| mat & M_LEATHER
		914	|| mat & M_WOOD
		915	|| mat & M_ORGANIC
		916	|| mat & M_CLOTH
		917	|| mat & M_LIQUID
		918	|| (mat & M_IRON && rndm (1, 5) == 1)
		919	|| (mat & M_GLASS && rndm (1, 2) == 1)
		920	|| ((mat & M_STONE || mat & M_ADAMANT) && rndm (1, 10) == 1)
		921	|| ((mat & M_SOFT_METAL || mat & M_BONE) && rndm (1, 3) == 1)
		922	|| (mat & M_ICE && temp > 32))
		923	destroy = 1;
1632	}	924	}
1633		925
1634	if (flags & MAP_PLAYER_UNIQUE)	926	/* adjust overall chance below */
1635	INVOKE_MAP (SWAPIN, m);	927	if (destroy && rndm (0, 1))
1636		928	op->destroy ();
1637	}	929	}
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	}	930	}
1674
1675		931
1676	/*	932	/*
1677	* This routine is supposed to find out the difficulty of the map.	933	* This routine is supposed to find out the difficulty of the map.
1678	* difficulty does not have a lot to do with character level,	934	* difficulty does not have a lot to do with character level,
1679	* but does have a lot to do with treasure on the map.	935	* but does have a lot to do with treasure on the map.
1680	*	936	*
1681	* Difficulty can now be set by the map creature. If the value stored	937	* 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	938	* in the map is zero, then use this routine. Maps should really
1683	* have a difficulty set than using this function - human calculation	939	* have a difficulty set rather than using this function - human calculation
1684	* is much better than this functions guesswork.	940	* is much better than this function's guesswork.
1685	*/	941	*/
1686
1687	int	942	int
1688	calculate_difficulty (maptile *m)	943	maptile::estimate_difficulty () const
1689	{	944	{
1690	object *op;
1691	archetype *at;
1692	int x, y, i;
1693	long monster_cnt = 0;	945	long monster_cnt = 0;
1694	double avgexp = 0;	946	double avgexp = 0;
1695	sint64 total_exp = 0;	947	sint64 total_exp = 0;
1696		948
1697	if (MAP_DIFFICULTY (m))	949	for (mapspace *ms = spaces + size (); ms-- > spaces; )
1698	{	950	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	{	951	{
1707	if (QUERY_FLAG (op, FLAG_MONSTER))	952	if (QUERY_FLAG (op, FLAG_MONSTER))
1708	{	953	{
1709	total_exp += op->stats.exp;	954	total_exp += op->stats.exp;
1710	monster_cnt++;	955	monster_cnt++;
1711	}	956	}
1712		957
1713	if (QUERY_FLAG (op, FLAG_GENERATOR))	958	if (QUERY_FLAG (op, FLAG_GENERATOR))
1714	{	959	{
1715	total_exp += op->stats.exp;	960	total_exp += op->stats.exp;
1716	at = type_to_archetype (GENERATE_TYPE (op));
1717		961
1718	if (at != NULL)	962	if (archetype *at = op->other_arch)
		963	{
1719	total_exp += at->clone.stats.exp * 8;	964	total_exp += at->stats.exp * 8;
1720
1721	monster_cnt++;	965	monster_cnt++;
1722	}	966	}
		967
		968	for (object *inv = op->inv; inv; inv = inv->below)
		969	{
		970	total_exp += op->stats.exp * 8;
		971	monster_cnt++;
		972	}
1723	}	973	}
		974	}
1724		975
1725	avgexp = (double) total_exp / monster_cnt;	976	avgexp = (double) total_exp / monster_cnt;
1726		977
1727	for (i = 1; i <= settings.max_level; i++)	978	for (int i = 1; i <= settings.max_level; i++)
1728	{
1729	if ((level_exp (i, 1) - level_exp (i - 1, 1)) > (100 * avgexp))	979	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;	980	return i;
1733	}
1734	}
1735		981
1736	return 1;	982	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	}	983	}
1765		984
1766	/* change_map_light() - used to change map light level (darkness)	985	/* change_map_light() - used to change map light level (darkness)
1767	* up or down. Returns true if successful. It should now be	986	* up or down. Returns true if successful. It should now be
1768	* possible to change a value by more than 1.	987	* possible to change a value by more than 1.
1769	* Move this from los.c to map.c since this is more related	988	* Move this from los.c to map.c since this is more related
1770	* to maps than los.	989	* to maps than los.
1771	* postive values make it darker, negative make it brighter	990	* postive values make it darker, negative make it brighter
1772	*/	991	*/
1773
1774	int	992	int
1775	change_map_light (maptile *m, int change)	993	maptile::change_map_light (int change)
1776	{	994	{
1777	int new_level = m->darkness + change;
1778
1779	/* Nothing to do */	995	/* Nothing to do */
1780	if (!change || (new_level <= 0 && m->darkness == 0) || (new_level >= MAX_DARKNESS && m->darkness >= MAX_DARKNESS))	996	if (!change)
1781	{
1782	return 0;	997	return 0;
1783	}
1784		998
1785	/* inform all players on the map */	999	/* inform all players on the map */
1786	if (change > 0)	1000	if (change > 0)
1787	new_info_map (NDI_BLACK | NDI_UNIQUE, m, "It becomes darker.");	1001	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes darker.");
1788	else	1002	else
1789	new_info_map (NDI_BLACK | NDI_UNIQUE, m, "It becomes brighter.");	1003	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes brighter.");
1790		1004
1791	/* Do extra checking. since m->darkness is a unsigned value,	1005	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		1006
1803	/* All clients need to get re-updated for the change */	1007	/* All clients need to get re-updated for the change */
1804	update_all_map_los (m);	1008	update_all_map_los (this);
		1009
1805	return 1;	1010	return 1;
1806	}	1011	}
1807		1012
1808	/*	1013	/*
1809	* This function updates various attributes about a specific space	1014	* This function updates various attributes about a specific space
…		…
1812	* through, etc)	1017	* through, etc)
1813	*/	1018	*/
1814	void	1019	void
1815	mapspace::update_ ()	1020	mapspace::update_ ()
1816	{	1021	{
1817	object *tmp, *last = 0;	1022	object *last = 0;
1818	uint8 flags = 0, light = 0, anywhere = 0;	1023	uint8 flags = P_UPTODATE, anywhere = 0;
1819	New_Face *top, *floor, *middle;	1024	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;	1025	MoveType move_block = 0, move_slow = 0, move_on = 0, move_off = 0, move_allow = 0;
1822		1026
1823	middle = blank_face;	1027	//object *middle = 0;
1824	top = blank_face;	1028	//object *top = 0;
1825	floor = blank_face;	1029	//object *floor = 0;
		1030	// this seems to generate better code than using locals, above
		1031	object *&top = faces_obj[0] = 0;
		1032	object *&middle = faces_obj[1] = 0;
		1033	object *&floor = faces_obj[2] = 0;
1826		1034
1827	middle_obj = 0;
1828	top_obj = 0;
1829	floor_obj = 0;
1830
1831	for (tmp = bottom; tmp; last = tmp, tmp = tmp->above)	1035	for (object *tmp = bot; tmp; last = tmp, tmp = tmp->above)
1832	{	1036	{
1833	/* This could be made additive I guess (two lights better than	1037	// 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;	1038	light += tmp->glow_radius;
1840		1039
1841	/* This call is needed in order to update objects the player	1040	/* This call is needed in order to update objects the player
1842	* is standing in that have animations (ie, grass, fire, etc).	1041	* is standing in that have animations (ie, grass, fire, etc).
1843	* However, it also causes the look window to be re-drawn	1042	* However, it also causes the look window to be re-drawn
1844	* 3 times each time the player moves, because many of the	1043	* 3 times each time the player moves, because many of the
…		…
1847	* Always put the player down for drawing.	1046	* Always put the player down for drawing.
1848	*/	1047	*/
1849	if (!tmp->invisible)	1048	if (!tmp->invisible)
1850	{	1049	{
1851	if ((tmp->type == PLAYER || QUERY_FLAG (tmp, FLAG_MONSTER)))	1050	if ((tmp->type == PLAYER || QUERY_FLAG (tmp, FLAG_MONSTER)))
1852	{
1853	top = tmp->face;
1854	top_obj = tmp;	1051	top = tmp;
1855	}
1856	else if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))	1052	else if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))
1857	{	1053	{
1858	/* If we got a floor, that means middle and top were below it,	1054	/* If we got a floor, that means middle and top were below it,
1859	* so should not be visible, so we clear them.	1055	* so should not be visible, so we clear them.
1860	*/	1056	*/
1861	middle = blank_face;	1057	middle = 0;
1862	top = blank_face;	1058	top = 0;
1863	floor = tmp->face;
1864	floor_obj = tmp;	1059	floor = tmp;
1865	}	1060	}
1866	/* Flag anywhere have high priority */	1061	/* Flag anywhere have high priority */
1867	else if (QUERY_FLAG (tmp, FLAG_SEE_ANYWHERE))	1062	else if (QUERY_FLAG (tmp, FLAG_SEE_ANYWHERE))
1868	{	1063	{
1869	middle = tmp->face;
1870
1871	middle_obj = tmp;	1064	middle = tmp;
1872	anywhere = 1;	1065	anywhere = 1;
1873	}	1066	}
		1067
1874	/* Find the highest visible face around. If equal	1068	/* Find the highest visible face around. If equal
1875	* visibilities, we still want the one nearer to the	1069	* visibilities, we still want the one nearer to the
1876	* top	1070	* top
1877	*/	1071	*/
1878	else if (middle == blank_face || (tmp->face->visibility > middle->visibility && !anywhere))	1072	else if (!middle || (::faces [tmp->face].visibility > ::faces [middle->face].visibility && !anywhere))
1879	{
1880	middle = tmp->face;
1881	middle_obj = tmp;	1073	middle = tmp;
1882	}
1883	}	1074	}
1884		1075
1885	if (tmp == tmp->above)	1076	if (tmp == tmp->above)
1886	{	1077	{
1887	LOG (llevError, "Error in structure of map\n");	1078	LOG (llevError, "Error in structure of map\n");
…		…
1900	if (tmp->type == SAFE_GROUND) flags |= P_SAFE;	1091	if (tmp->type == SAFE_GROUND) flags |= P_SAFE;
1901	if (QUERY_FLAG (tmp, FLAG_ALIVE)) flags |= P_IS_ALIVE;	1092	if (QUERY_FLAG (tmp, FLAG_ALIVE)) flags |= P_IS_ALIVE;
1902	if (QUERY_FLAG (tmp, FLAG_DAMNED)) flags |= P_NO_CLERIC;	1093	if (QUERY_FLAG (tmp, FLAG_DAMNED)) flags |= P_NO_CLERIC;
1903	}	1094	}
1904		1095
1905	this->light = light;	1096	this->light = min (light, MAX_LIGHT_RADIUS);
1906	this->flags_ = flags;	1097	this->flags_ = flags;
1907	this->move_block = move_block & ~move_allow;	1098	this->move_block = move_block & ~move_allow;
1908	this->move_on = move_on;	1099	this->move_on = move_on;
1909	this->move_off = move_off;	1100	this->move_off = move_off;
1910	this->move_slow = move_slow;	1101	this->move_slow = move_slow;
…		…
1922	* middle face. This should not happen, as we already have the	1113	* middle face. This should not happen, as we already have the
1923	* else statement above so middle should not get set. OTOH, it	1114	* else statement above so middle should not get set. OTOH, it
1924	* may be possible for the faces to match but be different objects.	1115	* may be possible for the faces to match but be different objects.
1925	*/	1116	*/
1926	if (top == middle)	1117	if (top == middle)
1927	middle = blank_face;	1118	middle = 0;
1928		1119
1929	/* There are three posibilities at this point:	1120	/* There are three posibilities at this point:
1930	* 1) top face is set, need middle to be set.	1121	* 1) top face is set, need middle to be set.
1931	* 2) middle is set, need to set top.	1122	* 2) middle is set, need to set top.
1932	* 3) neither middle or top is set - need to set both.	1123	* 3) neither middle or top is set - need to set both.
1933	*/	1124	*/
1934		1125
1935	for (tmp = last; tmp; tmp = tmp->below)	1126	for (object *tmp = last; tmp; tmp = tmp->below)
1936	{	1127	{
1937	/* Once we get to a floor, stop, since we already have a floor object */	1128	/* Once we get to a floor, stop, since we already have a floor object */
1938	if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))	1129	if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))
1939	break;	1130	break;
1940		1131
1941	/* If two top faces are already set, quit processing */	1132	/* If two top faces are already set, quit processing */
1942	if ((top != blank_face) && (middle != blank_face))	1133	if (top && middle)
1943	break;	1134	break;
1944		1135
1945	/* Only show visible faces, unless its the editor - show all */	1136	/* Only show visible faces */
1946	if (!tmp->invisible || editor)	1137	if (!tmp->invisible)
1947	{	1138	{
1948	/* Fill in top if needed */	1139	/* Fill in top if needed */
1949	if (top == blank_face)	1140	if (!top)
1950	{	1141	{
1951	top = tmp->face;
1952	top_obj = tmp;	1142	top = tmp;
1953	if (top == middle)	1143	if (top == middle)
1954	middle = blank_face;	1144	middle = 0;
1955	}	1145	}
1956	else	1146	else
1957	{	1147	{
1958	/* top is already set - we should only get here if	1148	/* top is already set - we should only get here if
1959	* middle is not set	1149	* middle is not set
1960	*	1150	*
1961	* Set the middle face and break out, since there is nothing	1151	* Set the middle face and break out, since there is nothing
1962	* more to fill in. We don't check visiblity here, since	1152	* more to fill in. We don't check visiblity here, since
1963	*	1153	*
1964	*/	1154	*/
1965	if (tmp->face != top)	1155	if (tmp != top)
1966	{	1156	{
1967	middle = tmp->face;
1968	middle_obj = tmp;	1157	middle = tmp;
1969	break;	1158	break;
1970	}	1159	}
1971	}	1160	}
1972	}	1161	}
1973	}	1162	}
1974		1163
1975	if (middle == floor)	1164	if (middle == floor)
1976	middle = blank_face;	1165	middle = 0;
1977		1166
1978	if (top == middle)	1167	if (top == middle)
1979	middle = blank_face;	1168	middle = 0;
1980		1169
1981	faces [0] = top; faces_obj [0] = top != blank_face ? top_obj : 0;	1170	#if 0
1982	faces [1] = middle; faces_obj [1] = middle != blank_face ? middle_obj : 0;	1171	faces_obj [0] = top;
1983	faces [2] = floor; faces_obj [2] = floor != blank_face ? floor_obj : 0;	1172	faces_obj [1] = middle;
		1173	faces_obj [2] = floor;
		1174	#endif
1984	}	1175	}
1985		1176
1986	void	1177	uint64
1987	set_map_reset_time (maptile *map)	1178	mapspace::volume () const
1988	{	1179	{
1989	int timeout;	1180	uint64 vol = 0;
1990		1181
1991	timeout = MAP_RESET_TIMEOUT (map);	1182	for (object *op = top; op && !op->flag [FLAG_NO_PICK]; op = op->below)
1992	if (timeout <= 0)	1183	vol += op->volume ();
1993	timeout = MAP_DEFAULTRESET;
1994	if (timeout >= MAP_MAXRESET)
1995	timeout = MAP_MAXRESET;
1996	MAP_WHEN_RESET (map) = time (0) + timeout;
1997	}
1998		1184
1999	/* this updates the orig_map->tile_map[tile_num] value after loading	1185	return vol;
2000	* the map. It also takes care of linking back the freshly loaded	1186	}
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		1187
2006	static maptile *	1188	maptile *
2007	load_and_link_tiled_map (maptile *orig_map, int tile_num)	1189	maptile::tile_available (int dir, bool load)
2008	{	1190	{
2009	int dest_tile = (tile_num + 2) % 4;	1191	if (tile_path[dir])
2010	char *path = path_combine_and_normalize (orig_map->path, orig_map->tile_path[tile_num]);	1192	{
		1193	if (tile_map[dir] && (!load || tile_map[dir]->in_memory == MAP_ACTIVE))
		1194	return tile_map[dir];
2011		1195
2012	orig_map->tile_map[tile_num] = ready_map_name (path, 0);	1196	if ((tile_map[dir] = find_async (tile_path[dir], this, load)))
		1197	return tile_map[dir];
		1198	}
2013		1199
2014	/* need to do a strcmp here as the orig_map->path is not a shared string */	1200	return 0;
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	}	1201	}
2020		1202
2021	/* this returns TRUE if the coordinates (x,y) are out of	1203	/* this returns TRUE if the coordinates (x,y) are out of
2022	* map m. This function also takes into account any	1204	* map m. This function also takes into account any
2023	* tiling considerations, loading adjacant maps as needed.	1205	* tiling considerations, loading adjacant maps as needed.
2024	* This is the function should always be used when it	1206	* This is the function should always be used when it
2025	* necessary to check for valid coordinates.	1207	* necessary to check for valid coordinates.
2026	* This function will recursively call itself for the	1208	* This function will recursively call itself for the
2027	* tiled maps.	1209	* tiled maps.
2028	*
2029	*
2030	*/	1210	*/
2031	int	1211	int
2032	out_of_map (maptile *m, int x, int y)	1212	out_of_map (maptile *m, int x, int y)
2033	{	1213	{
2034	/* If we get passed a null map, this is obviously the	1214	/* If we get passed a null map, this is obviously the
…		…
2038	if (!m)	1218	if (!m)
2039	return 0;	1219	return 0;
2040		1220
2041	if (x < 0)	1221	if (x < 0)
2042	{	1222	{
2043	if (!m->tile_path[3])	1223	if (!m->tile_available (3))
2044	return 1;	1224	return 1;
2045		1225
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));	1226	return out_of_map (m->tile_map[3], x + m->tile_map[3]->width, y);
2050	}
2051
2052	if (x >= MAP_WIDTH (m))
2053	{	1227	}
2054	if (!m->tile_path[1])	1228
		1229	if (x >= m->width)
		1230	{
		1231	if (!m->tile_available (1))
2055	return 1;	1232	return 1;
2056		1233
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));	1234	return out_of_map (m->tile_map[1], x - m->width, y);
2061	}	1235	}
2062		1236
2063	if (y < 0)	1237	if (y < 0)
2064	{	1238	{
2065	if (!m->tile_path[0])	1239	if (!m->tile_available (0))
2066	return 1;	1240	return 1;
2067		1241
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])));	1242	return out_of_map (m->tile_map[0], x, y + m->tile_map[0]->height);
2072	}
2073
2074	if (y >= MAP_HEIGHT (m))
2075	{	1243	}
2076	if (!m->tile_path[2])	1244
		1245	if (y >= m->height)
		1246	{
		1247	if (!m->tile_available (2))
2077	return 1;	1248	return 1;
2078		1249
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)));	1250	return out_of_map (m->tile_map[2], x, y - m->height);
2083	}	1251	}
2084		1252
2085	/* Simple case - coordinates are within this local	1253	/* Simple case - coordinates are within this local
2086	* map.	1254	* map.
2087	*/	1255	*/
…		…
2090		1258
2091	/* This is basically the same as out_of_map above, but	1259	/* This is basically the same as out_of_map above, but
2092	* instead we return NULL if no map is valid (coordinates	1260	* instead we return NULL if no map is valid (coordinates
2093	* out of bounds and no tiled map), otherwise it returns	1261	* out of bounds and no tiled map), otherwise it returns
2094	* the map as that the coordinates are really on, and	1262	* the map as that the coordinates are really on, and
2095	* updates x and y to be the localized coordinates.	1263	* updates x and y to be the localised coordinates.
2096	* Using this is more efficient of calling out_of_map	1264	* Using this is more efficient of calling out_of_map
2097	* and then figuring out what the real map is	1265	* and then figuring out what the real map is
2098	*/	1266	*/
2099	maptile *	1267	maptile *
2100	get_map_from_coord (maptile *m, sint16 * x, sint16 * y)	1268	maptile::xy_find (sint16 &x, sint16 &y)
2101	{	1269	{
2102
2103	if (*x < 0)	1270	if (x < 0)
2104	{	1271	{
2105	if (!m->tile_path[3])	1272	if (!tile_available (3))
2106	return 0;	1273	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		1274
2110	*x += MAP_WIDTH (m->tile_map[3]);	1275	x += tile_map[3]->width;
2111	return (get_map_from_coord (m->tile_map[3], x, y));	1276	return tile_map[3]->xy_find (x, y);
2112	}
2113
2114	if (*x >= MAP_WIDTH (m))
2115	{	1277	}
2116	if (!m->tile_path[1])	1278
		1279	if (x >= width)
		1280	{
		1281	if (!tile_available (1))
2117	return 0;	1282	return 0;
2118		1283
2119	if (!m->tile_map[1] || m->tile_map[1]->in_memory != MAP_IN_MEMORY)	1284	x -= width;
2120	load_and_link_tiled_map (m, 1);	1285	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	}	1286	}
2125		1287
2126	if (*y < 0)	1288	if (y < 0)
2127	{	1289	{
2128	if (!m->tile_path[0])	1290	if (!tile_available (0))
2129	return 0;	1291	return 0;
2130		1292
2131	if (!m->tile_map[0] || m->tile_map[0]->in_memory != MAP_IN_MEMORY)	1293	y += tile_map[0]->height;
2132	load_and_link_tiled_map (m, 0);	1294	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	{	1295	}
2140	if (!m->tile_path[2])	1296
		1297	if (y >= height)
		1298	{
		1299	if (!tile_available (2))
2141	return 0;	1300	return 0;
2142		1301
2143	if (!m->tile_map[2] || m->tile_map[2]->in_memory != MAP_IN_MEMORY)	1302	y -= height;
2144	load_and_link_tiled_map (m, 2);	1303	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	}	1304	}
2149		1305
2150	/* Simple case - coordinates are within this local	1306	/* Simple case - coordinates are within this local
2151	* map.	1307	* map.
2152	*/	1308	*/
2153
2154	return m;	1309	return this;
2155	}	1310	}
2156		1311
2157	/**	1312	/**
2158	* Return whether map2 is adjacent to map1. If so, store the distance from	1313	* Return whether map2 is adjacent to map1. If so, store the distance from
2159	* map1 to map2 in dx/dy.	1314	* map1 to map2 in dx/dy.
2160	*/	1315	*/
2161	static int	1316	int
2162	adjacent_map (const maptile *map1, const maptile *map2, int *dx, int *dy)	1317	adjacent_map (const maptile *map1, const maptile *map2, int *dx, int *dy)
2163	{	1318	{
2164	if (!map1 || !map2)	1319	if (!map1 || !map2)
2165	return 0;	1320	return 0;
2166		1321
		1322	//TODO: this doesn't actually check correctly when intermediate maps are not loaded
		1323	//fix: compare paths instead (this is likely faster, too!)
2167	if (map1 == map2)	1324	if (map1 == map2)
2168	{	1325	{
2169	*dx = 0;	1326	*dx = 0;
2170	*dy = 0;	1327	*dy = 0;
2171
2172	}	1328	}
2173	else if (map1->tile_map[0] == map2)	1329	else if (map1->tile_map[0] == map2)
2174	{ /* up */	1330	{ /* up */
2175	*dx = 0;	1331	*dx = 0;
2176	*dy = -MAP_HEIGHT (map2);	1332	*dy = -map2->height;
2177	}	1333	}
2178	else if (map1->tile_map[1] == map2)	1334	else if (map1->tile_map[1] == map2)
2179	{ /* right */	1335	{ /* right */
2180	*dx = MAP_WIDTH (map1);	1336	*dx = map1->width;
2181	*dy = 0;	1337	*dy = 0;
2182	}	1338	}
2183	else if (map1->tile_map[2] == map2)	1339	else if (map1->tile_map[2] == map2)
2184	{ /* down */	1340	{ /* down */
2185	*dx = 0;	1341	*dx = 0;
2186	*dy = MAP_HEIGHT (map1);	1342	*dy = map1->height;
2187	}	1343	}
2188	else if (map1->tile_map[3] == map2)	1344	else if (map1->tile_map[3] == map2)
2189	{ /* left */	1345	{ /* left */
2190	*dx = -MAP_WIDTH (map2);	1346	*dx = -map2->width;
2191	*dy = 0;	1347	*dy = 0;
2192
2193	}	1348	}
2194	else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[1] == map2)	1349	else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[1] == map2)
2195	{ /* up right */	1350	{ /* up right */
2196	*dx = MAP_WIDTH (map1->tile_map[0]);	1351	*dx = map1->tile_map[0]->width;
2197	*dy = -MAP_HEIGHT (map1->tile_map[0]);	1352	*dy = -map1->tile_map[0]->height;
2198	}	1353	}
2199	else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[3] == map2)	1354	else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[3] == map2)
2200	{ /* up left */	1355	{ /* up left */
2201	*dx = -MAP_WIDTH (map2);	1356	*dx = -map2->width;
2202	*dy = -MAP_HEIGHT (map1->tile_map[0]);	1357	*dy = -map1->tile_map[0]->height;
2203	}	1358	}
2204	else if (map1->tile_map[1] && map1->tile_map[1]->tile_map[0] == map2)	1359	else if (map1->tile_map[1] && map1->tile_map[1]->tile_map[0] == map2)
2205	{ /* right up */	1360	{ /* right up */
2206	*dx = MAP_WIDTH (map1);	1361	*dx = map1->width;
2207	*dy = -MAP_HEIGHT (map2);	1362	*dy = -map2->height;
2208	}	1363	}
2209	else if (map1->tile_map[1] && map1->tile_map[1]->tile_map[2] == map2)	1364	else if (map1->tile_map[1] && map1->tile_map[1]->tile_map[2] == map2)
2210	{ /* right down */	1365	{ /* right down */
2211	*dx = MAP_WIDTH (map1);	1366	*dx = map1->width;
2212	*dy = MAP_HEIGHT (map1->tile_map[1]);	1367	*dy = map1->tile_map[1]->height;
2213	}	1368	}
2214	else if (map1->tile_map[2] && map1->tile_map[2]->tile_map[1] == map2)	1369	else if (map1->tile_map[2] && map1->tile_map[2]->tile_map[1] == map2)
2215	{ /* down right */	1370	{ /* down right */
2216	*dx = MAP_WIDTH (map1->tile_map[2]);	1371	*dx = map1->tile_map[2]->width;
2217	*dy = MAP_HEIGHT (map1);	1372	*dy = map1->height;
2218	}	1373	}
2219	else if (map1->tile_map[2] && map1->tile_map[2]->tile_map[3] == map2)	1374	else if (map1->tile_map[2] && map1->tile_map[2]->tile_map[3] == map2)
2220	{ /* down left */	1375	{ /* down left */
2221	*dx = -MAP_WIDTH (map2);	1376	*dx = -map2->width;
2222	*dy = MAP_HEIGHT (map1);	1377	*dy = map1->height;
2223	}	1378	}
2224	else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[0] == map2)	1379	else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[0] == map2)
2225	{ /* left up */	1380	{ /* left up */
2226	*dx = -MAP_WIDTH (map1->tile_map[3]);	1381	*dx = -map1->tile_map[3]->width;
2227	*dy = -MAP_HEIGHT (map2);	1382	*dy = -map2->height;
2228	}	1383	}
2229	else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[2] == map2)	1384	else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[2] == map2)
2230	{ /* left down */	1385	{ /* left down */
2231	*dx = -MAP_WIDTH (map1->tile_map[3]);	1386	*dx = -map1->tile_map[3]->width;
2232	*dy = MAP_HEIGHT (map1->tile_map[3]);	1387	*dy = map1->tile_map[3]->height;
2233
2234	}	1388	}
2235	else	1389	else
2236	{ /* not "adjacent" enough */
2237	return 0;	1390	return 0;
2238	}
2239		1391
2240	return 1;	1392	return 1;
		1393	}
		1394
		1395	maptile *
		1396	maptile::xy_load (sint16 &x, sint16 &y)
		1397	{
		1398	maptile *map = xy_find (x, y);
		1399
		1400	if (map)
		1401	map->load_sync ();
		1402
		1403	return map;
		1404	}
		1405
		1406	maptile *
		1407	get_map_from_coord (maptile *m, sint16 *x, sint16 *y)
		1408	{
		1409	return m->xy_load (*x, *y);
2241	}	1410	}
2242		1411
2243	/* From map.c	1412	/* From map.c
2244	* This is used by get_player to determine where the other	1413	* This is used by get_player to determine where the other
2245	* creature is. get_rangevector takes into account map tiling,	1414	* creature is. get_rangevector takes into account map tiling,
2246	* so you just can not look the the map coordinates and get the	1415	* so you just can not look the the map coordinates and get the
2247	* righte value. distance_x/y are distance away, which	1416	* righte value. distance_x/y are distance away, which
2248	* can be negativbe. direction is the crossfire direction scheme	1417	* can be negative. direction is the crossfire direction scheme
2249	* that the creature should head. part is the part of the	1418	* that the creature should head. part is the part of the
2250	* monster that is closest.	1419	* monster that is closest.
2251	*	1420	*
2252	* get_rangevector looks at op1 and op2, and fills in the	1421	* get_rangevector looks at op1 and op2, and fills in the
2253	* structure for op1 to get to op2.	1422	* structure for op1 to get to op2.
…		…
2258	* be unexpected	1427	* be unexpected
2259	*	1428	*
2260	* currently, the only flag supported (0x1) is don't translate for	1429	* currently, the only flag supported (0x1) is don't translate for
2261	* closest body part of 'op1'	1430	* closest body part of 'op1'
2262	*/	1431	*/
2263
2264	void	1432	void
2265	get_rangevector (object *op1, object *op2, rv_vector * retval, int flags)	1433	get_rangevector (object *op1, object *op2, rv_vector * retval, int flags)
2266	{	1434	{
2267	if (!adjacent_map (op1->map, op2->map, &retval->distance_x, &retval->distance_y))	1435	if (!adjacent_map (op1->map, op2->map, &retval->distance_x, &retval->distance_y))
2268	{	1436	{
2269	/* be conservative and fill in _some_ data */	1437	/* be conservative and fill in _some_ data */
2270	retval->distance = 100000;	1438	retval->distance = 10000;
2271	retval->distance_x = 32767;	1439	retval->distance_x = 10000;
2272	retval->distance_y = 32767;	1440	retval->distance_y = 10000;
2273	retval->direction = 0;	1441	retval->direction = 0;
2274	retval->part = 0;	1442	retval->part = 0;
2275	}	1443	}
2276	else	1444	else
2277	{	1445	{
…		…
2282		1450
2283	best = op1;	1451	best = op1;
2284	/* If this is multipart, find the closest part now */	1452	/* If this is multipart, find the closest part now */
2285	if (!(flags & 0x1) && op1->more)	1453	if (!(flags & 0x1) && op1->more)
2286	{	1454	{
2287	object *tmp;
2288	int best_distance = retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y, tmpi;	1455	int best_distance = retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y, tmpi;
2289		1456
2290	/* we just take the offset of the piece to head to figure	1457	/* we just take the offset of the piece to head to figure
2291	* distance instead of doing all that work above again	1458	* distance instead of doing all that work above again
2292	* since the distance fields we set above are positive in the	1459	* since the distance fields we set above are positive in the
2293	* same axis as is used for multipart objects, the simply arithmetic	1460	* same axis as is used for multipart objects, the simply arithmetic
2294	* below works.	1461	* below works.
2295	*/	1462	*/
2296	for (tmp = op1->more; tmp != NULL; tmp = tmp->more)	1463	for (object *tmp = op1->more; tmp; tmp = tmp->more)
2297	{	1464	{
2298	tmpi = (op1->x - tmp->x + retval->distance_x) * (op1->x - tmp->x + retval->distance_x) +	1465	tmpi = (op1->x - tmp->x + retval->distance_x) * (op1->x - tmp->x + retval->distance_x) +
2299	(op1->y - tmp->y + retval->distance_y) * (op1->y - tmp->y + retval->distance_y);	1466	(op1->y - tmp->y + retval->distance_y) * (op1->y - tmp->y + retval->distance_y);
2300	if (tmpi < best_distance)	1467	if (tmpi < best_distance)
2301	{	1468	{
2302	best_distance = tmpi;	1469	best_distance = tmpi;
2303	best = tmp;	1470	best = tmp;
2304	}	1471	}
2305	}	1472	}
		1473
2306	if (best != op1)	1474	if (best != op1)
2307	{	1475	{
2308	retval->distance_x += op1->x - best->x;	1476	retval->distance_x += op1->x - best->x;
2309	retval->distance_y += op1->y - best->y;	1477	retval->distance_y += op1->y - best->y;
2310	}	1478	}
2311	}	1479	}
		1480
2312	retval->part = best;	1481	retval->part = best;
2313	retval->distance = isqrt (retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y);	1482	retval->distance = upos_max (abs (retval->distance_x), abs (retval->distance_y));
2314	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);	1483	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);
2315	}	1484	}
2316	}	1485	}
2317		1486
2318	/* this is basically the same as get_rangevector above, but instead of	1487	/* this is basically the same as get_rangevector above, but instead of
…		…
2323	* flags has no meaning for this function at this time - I kept it in to	1492	* 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	1493	* 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	1494	* for something in the future. Also, since no object is pasted, the best
2326	* field of the rv_vector is set to NULL.	1495	* field of the rv_vector is set to NULL.
2327	*/	1496	*/
2328
2329	void	1497	void
2330	get_rangevector_from_mapcoord (const maptile *m, int x, int y, const object *op2, rv_vector * retval, int flags)	1498	get_rangevector_from_mapcoord (const maptile *m, int x, int y, const object *op2, rv_vector *retval, int flags)
2331	{	1499	{
2332	if (!adjacent_map (m, op2->map, &retval->distance_x, &retval->distance_y))	1500	if (!adjacent_map (m, op2->map, &retval->distance_x, &retval->distance_y))
2333	{	1501	{
2334	/* be conservative and fill in _some_ data */	1502	/* be conservative and fill in _some_ data */
2335	retval->distance = 100000;	1503	retval->distance = 100000;
…		…
2341	else	1509	else
2342	{	1510	{
2343	retval->distance_x += op2->x - x;	1511	retval->distance_x += op2->x - x;
2344	retval->distance_y += op2->y - y;	1512	retval->distance_y += op2->y - y;
2345		1513
2346	retval->part = NULL;	1514	retval->part = 0;
2347	retval->distance = isqrt (retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y);	1515	retval->distance = upos_max (abs (retval->distance_x), abs (retval->distance_y));
2348	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);	1516	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);
2349	}	1517	}
2350	}	1518	}
2351		1519
2352	/* Returns true of op1 and op2 are effectively on the same map	1520	/* 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	1521	* (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	1522	* op1 to op2, so if the tiled maps are asymetric and op2 has a path
2355	* to op1, this will still return false.	1523	* to op1, this will still return false.
2356	* Note we only look one map out to keep the processing simple	1524	* Note we only look one map out to keep the processing simple
2357	* and efficient. This could probably be a macro.	1525	* and efficient. This could probably be a macro.
2358	* MSW 2001-08-05	1526	* MSW 2001-08-05
2359	*/	1527	*/
…		…
2362	{	1530	{
2363	int dx, dy;	1531	int dx, dy;
2364		1532
2365	return adjacent_map (op1->map, op2->map, &dx, &dy);	1533	return adjacent_map (op1->map, op2->map, &dx, &dy);
2366	}	1534	}
		1535
		1536	object *
		1537	maptile::insert (object *op, int x, int y, object *originator, int flags)
		1538	{
		1539	return insert_ob_in_map_at (op, this, originator, flags, x, y);
		1540	}
		1541
		1542	region *
		1543	maptile::region (int x, int y) const
		1544	{
		1545	if (regions
		1546	&& regionmap
		1547	&& !OUT_OF_REAL_MAP (this, x, y))
		1548	if (struct region *reg = regionmap [regions [y * width + x]])
		1549	return reg;
		1550
		1551	if (default_region)
		1552	return default_region;
		1553
		1554	return ::region::default_region ();
		1555	}
		1556
		1557	/* picks a random object from a style map.
		1558	*/
		1559	object *
		1560	maptile::pick_random_object (rand_gen &gen) const
		1561	{
		1562	/* while returning a null object will result in a crash, that
		1563	* is actually preferable to an infinite loop. That is because
		1564	* most servers will automatically restart in case of crash.
		1565	* Change the logic on getting the random space - shouldn't make
		1566	* any difference, but this seems clearer to me.
		1567	*/
		1568	for (int i = 1000; --i;)
		1569	{
		1570	object *pick = at (gen (width), gen (height)).bot;
		1571
		1572	// do not prefer big monsters just because they are big.
		1573	if (pick && pick->is_head ())
		1574	return pick->head_ ();
		1575	}
		1576
		1577	// instead of crashing in the unlikely(?) case, try to return *something*
		1578	return archetype::find ("bug");
		1579	}
		1580
		1581	void
		1582	maptile::play_sound (faceidx sound, int x, int y) const
		1583	{
		1584	if (!sound)
		1585	return;
		1586
		1587	for_all_players_on_map (pl, this)
		1588	if (client *ns = pl->ns)
		1589	{
		1590	int dx = x - pl->ob->x;
		1591	int dy = y - pl->ob->y;
		1592
		1593	int distance = idistance (dx, dy);
		1594
		1595	if (distance <= MAX_SOUND_DISTANCE)
		1596	ns->play_sound (sound, dx, dy);
		1597	}
		1598	}
		1599
		1600	void
		1601	maptile::say_msg (const char *msg, int x, int y) const
		1602	{
		1603	for_all_players (pl)
		1604	if (client *ns = pl->ns)
		1605	{
		1606	int dx = x - pl->ob->x;
		1607	int dy = y - pl->ob->y;
		1608
		1609	int distance = idistance (dx, dy);
		1610
		1611	if (distance <= MAX_SOUND_DISTANCE)
		1612	ns->send_msg (NDI_GREY | NDI_DEF, SAY_CHANNEL, msg);
		1613	}
		1614	}
		1615
		1616	static void
		1617	split_to_tiles (dynbuf &buf, maptile *m, int x0, int y0, int x1, int y1, int dx, int dy)
		1618	{
		1619	// clip to map to the left
		1620	if (x0 < 0)
		1621	{
		1622	if (maptile *tile = m->tile_available (TILE_LEFT, 1))
		1623	split_to_tiles (buf, tile, x0 + tile->width, y0, min (x1 + tile->width, tile->width), y1, dx - tile->width, dy);
		1624
		1625	if (x1 < 0) // entirely to the left
		1626	return;
		1627
		1628	x0 = 0;
		1629	}
		1630
		1631	// clip to map to the right
		1632	if (x1 > m->width)
		1633	{
		1634	if (maptile *tile = m->tile_available (TILE_RIGHT, 1))
		1635	split_to_tiles (buf, tile, max (x0 - m->width, 0), y0, x1 - m->width, y1, dx + m->width, dy);
		1636
		1637	if (x0 > m->width) // entirely to the right
		1638	return;
		1639
		1640	x1 = m->width;
		1641	}
		1642
		1643	// clip to map above
		1644	if (y0 < 0)
		1645	{
		1646	if (maptile *tile = m->tile_available (TILE_UP, 1))
		1647	split_to_tiles (buf, tile, x0, y0 + tile->height, x1, min (y1 + tile->height, tile->height), dx, dy - tile->height);
		1648
		1649	if (y1 < 0) // entirely above
		1650	return;
		1651
		1652	y0 = 0;
		1653	}
		1654
		1655	// clip to map below
		1656	if (y1 > m->height)
		1657	{
		1658	if (maptile *tile = m->tile_available (TILE_DOWN, 1))
		1659	split_to_tiles (buf, tile, x0, max (y0 - m->height, 0), x1, y1 - m->height, dx, dy + m->height);
		1660
		1661	if (y0 > m->height) // entirely below
		1662	return;
		1663
		1664	y1 = m->height;
		1665	}
		1666
		1667	// if we get here, the rect is within the current map
		1668	maprect *r = (maprect *)buf.alloc (sizeof (maprect));
		1669
		1670	r->m = m;
		1671	r->x0 = x0;
		1672	r->y0 = y0;
		1673	r->x1 = x1;
		1674	r->y1 = y1;
		1675	r->dx = dx;
		1676	r->dy = dy;
		1677	}
		1678
		1679	maprect *
		1680	maptile::split_to_tiles (int x0, int y0, int x1, int y1)
		1681	{
		1682	static dynbuf buf (sizeof (maprect) * 8, sizeof (maprect) * 8);
		1683	buf.clear ();
		1684
		1685	::split_to_tiles (buf, this, x0, y0, x1, y1, 0, 0);
		1686
		1687	// add end marker
		1688	maprect *r = (maprect *)buf.alloc (sizeof (maprect));
		1689	r->m = 0;
		1690
		1691	return (maprect *)buf.linearise ();
		1692	}
		1693

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