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Comparing deliantra/server/common/map.C (file contents):
Revision 1.54 by root, Wed Dec 27 13:13:46 2006 UTC vs.
Revision 1.162 by root, Tue Oct 13 18:22:44 2009 UTC

1	/*	1	/*
2	CrossFire, A Multiplayer game for X-windows	2	* This file is part of Deliantra, the Roguelike Realtime MMORPG.
3		3	*
		4	* Copyright (©) 2005,2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
4	Copyright (C) 2001-2003 Mark Wedel & Crossfire Development Team	5	* Copyright (©) 2001-2003,2007 Mark Wedel & Crossfire Development Team
5	Copyright (C) 1992 Frank Tore Johansen	6	* Copyright (©) 1992,2007 Frank Tore Johansen
6		7	*
7	This program is free software; you can redistribute it and/or modify	8	* Deliantra is free software: you can redistribute it and/or modify it under
8	it under the terms of the GNU General Public License as published by	9	* the terms of the Affero GNU General Public License as published by the
9	the Free Software Foundation; either version 2 of the License, or	10	* Free Software Foundation, either version 3 of the License, or (at your
10	(at your option) any later version.	11	* option) any later version.
11		12	*
12	This program is distributed in the hope that it will be useful,	13	* This program is distributed in the hope that it will be useful,
13	but WITHOUT ANY WARRANTY; without even the implied warranty of	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15	GNU General Public License for more details.	16	* GNU General Public License for more details.
16		17	*
17	You should have received a copy of the GNU General Public License	18	* You should have received a copy of the Affero GNU General Public License
18	along with this program; if not, write to the Free Software	19	* and the GNU General Public License along with this program. If not, see
19	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	20	* <http://www.gnu.org/licenses/>.
20		21	*
21	The authors can be reached via e-mail at <crossfire@schmorp.de>	22	* The authors can be reached via e-mail to <support@deliantra.net>
22	*/	23	*/
23		24
24	#include <global.h>
25	#include <funcpoint.h>
26
27	#include <loader.h>
28	#include <unistd.h>	25	#include <unistd.h>
29		26
		27	#include "global.h"
		28	#include "loader.h"
30	#include "path.h"	29	#include "path.h"
31		30
32	/*	31	sint8 maptile::outdoor_darkness;
33	* Returns the maptile which has a name matching the given argument.
34	* return NULL if no match is found.
35	*/
36	maptile *
37	has_been_loaded (const char *name)
38	{
39	if (!name || !*name)
40	return 0;
41
42	for_all_maps (map)
43	if (!strcmp (name, map->path))
44	return map;
45
46	return 0;
47	}
48
49	/*
50	* This makes a path absolute outside the world of Crossfire.
51	* In other words, it prepends LIBDIR/MAPDIR/ to the given path
52	* and returns the pointer to a static array containing the result.
53	* it really should be called create_mapname
54	*/
55
56	const char *
57	create_pathname (const char *name)
58	{
59	static char buf[MAX_BUF];
60
61	/* Why? having extra / doesn't confuse unix anyplace? Dependancies
62	* someplace else in the code? msw 2-17-97
63	*/
64	if (*name == '/')
65	sprintf (buf, "%s/%s%s", settings.datadir, settings.mapdir, name);
66	else
67	sprintf (buf, "%s/%s/%s", settings.datadir, settings.mapdir, name);
68	return (buf);
69	}
70
71	/*
72	* same as create_pathname, but for the overlay maps.
73	*/
74
75	const char *
76	create_overlay_pathname (const char *name)
77	{
78	static char buf[MAX_BUF];
79
80	/* Why? having extra / doesn't confuse unix anyplace? Dependancies
81	* someplace else in the code? msw 2-17-97
82	*/
83	if (*name == '/')
84	sprintf (buf, "%s/%s%s", settings.localdir, settings.mapdir, name);
85	else
86	sprintf (buf, "%s/%s/%s", settings.localdir, settings.mapdir, name);
87	return (buf);
88	}
89
90	/*
91	* same as create_pathname, but for the template maps.
92	*/
93
94	const char *
95	create_template_pathname (const char *name)
96	{
97	static char buf[MAX_BUF];
98
99	/* Why? having extra / doesn't confuse unix anyplace? Dependancies
100	* someplace else in the code? msw 2-17-97
101	*/
102	if (*name == '/')
103	sprintf (buf, "%s/%s%s", settings.localdir, settings.templatedir, name);
104	else
105	sprintf (buf, "%s/%s/%s", settings.localdir, settings.templatedir, name);
106	return (buf);
107	}
108
109	/*
110	* This makes absolute path to the itemfile where unique objects
111	* will be saved. Converts '/' to '@'. I think it's essier maintain
112	* files than full directory structure, but if this is problem it can
113	* be changed.
114	*/
115	static const char *
116	create_items_path (const char *s)
117	{
118	static char buf[MAX_BUF];
119	char *t;
120
121	if (*s == '/')
122	s++;
123
124	sprintf (buf, "%s/%s/", settings.localdir, settings.uniquedir);
125
126	for (t = buf + strlen (buf); *s; s++, t++)
127	if (*s == '/')
128	*t = '@';
129	else
130	*t = *s;
131	*t = 0;
132	return (buf);
133	}
134
135
136	/*
137	* This function checks if a file with the given path exists.
138	* -1 is returned if it fails, otherwise the mode of the file
139	* is returned.
140	* It tries out all the compression suffixes listed in the uncomp[] array.
141	*
142	* If prepend_dir is set, then we call create_pathname (which prepends
143	* libdir & mapdir). Otherwise, we assume the name given is fully
144	* complete.
145	* Only the editor actually cares about the writablity of this -
146	* the rest of the code only cares that the file is readable.
147	* when the editor goes away, the call to stat should probably be
148	* replaced by an access instead (similar to the windows one, but
149	* that seems to be missing the prepend_dir processing
150	*/
151
152	int
153	check_path (const char *name, int prepend_dir)
154	{
155	char buf[MAX_BUF];
156
157	char *endbuf;
158	struct stat statbuf;
159	int mode = 0;
160
161	if (prepend_dir)
162	strcpy (buf, create_pathname (name));
163	else
164	strcpy (buf, name);
165
166	/* old method (strchr(buf, '\0')) seemd very odd to me -
167	* this method should be equivalant and is clearer.
168	* Can not use strcat because we need to cycle through
169	* all the names.
170	*/
171	endbuf = buf + strlen (buf);
172
173	if (stat (buf, &statbuf))
174	return -1;
175	if (!S_ISREG (statbuf.st_mode))
176	return (-1);
177
178	if (((statbuf.st_mode & S_IRGRP) && getegid () == statbuf.st_gid) ||
179	((statbuf.st_mode & S_IRUSR) && geteuid () == statbuf.st_uid) || (statbuf.st_mode & S_IROTH))
180	mode |= 4;
181
182	if ((statbuf.st_mode & S_IWGRP && getegid () == statbuf.st_gid) ||
183	(statbuf.st_mode & S_IWUSR && geteuid () == statbuf.st_uid) || (statbuf.st_mode & S_IWOTH))
184	mode |= 2;
185
186	return (mode);
187	}
188
189	/*
190	* Prints out debug-information about a map.
191	* Dumping these at llevError doesn't seem right, but is
192	* necessary to make sure the information is in fact logged.
193	*/
194
195	void
196	dump_map (const maptile *m)
197	{
198	LOG (llevError, "Map %s status: %d.\n", m->path, m->in_memory);
199	LOG (llevError, "Size: %dx%d Start: %d,%d\n", m->width, m->height, m->enter_x, m->enter_y);
200
201	if (m->msg != NULL)
202	LOG (llevError, "Message:\n%s", m->msg);
203
204	if (m->maplore != NULL)
205	LOG (llevError, "Lore:\n%s", m->maplore);
206
207	if (m->tmpname != NULL)
208	LOG (llevError, "Tmpname: %s\n", m->tmpname);
209
210	LOG (llevError, "Difficulty: %d\n", m->difficulty);
211	LOG (llevError, "Darkness: %d\n", m->darkness);
212	}
213
214	/*
215	* Prints out debug-information about all maps.
216	* This basically just goes through all the maps and calls
217	* dump_map on each one.
218	*/
219
220	void
221	dump_all_maps (void)
222	{
223	for_all_maps (m)
224	dump_map (m);
225	}
226		32
227	/* This rolls up wall, blocks_magic, blocks_view, etc, all into	33	/* This rolls up wall, blocks_magic, blocks_view, etc, all into
228	* one function that just returns a P_.. value (see map.h)	34	* one function that just returns a P_.. value (see map.h)
229	* it will also do map translation for tiled maps, returning	35	* it will also do map translation for tiled maps, returning
230	* 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
…		…
235	* don't expect to insert/remove anything from those spaces.	41	* don't expect to insert/remove anything from those spaces.
236	*/	42	*/
237	int	43	int
238	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)
239	{	45	{
240	sint16 newx, newy;
241	int retval = 0;
242	maptile *mp;
243
244	newx = x;	46	sint16 newx = x;
245	newy = y;	47	sint16 newy = y;
246		48
247	mp = get_map_from_coord (oldmap, &newx, &newy);	49	maptile *mp = get_map_from_coord (oldmap, &newx, &newy);
248		50
249	if (!mp)	51	if (!mp)
250	return P_OUT_OF_MAP;	52	return P_OUT_OF_MAP;
251
252	if (mp != oldmap)
253	retval |= P_NEW_MAP;
254		53
255	if (newmap) *newmap = mp;	54	if (newmap) *newmap = mp;
256	if (nx) *nx = newx;	55	if (nx) *nx = newx;
257	if (ny) *ny = newy;	56	if (ny) *ny = newy;
258		57
259	return retval | mp->at (newx, newy).flags ();	58	return mp->at (newx, newy).flags () | (mp != oldmap ? P_NEW_MAP : 0);
260	}	59	}
261		60
262	/*	61	/*
263	* Returns true if the given coordinate is blocked except by the	62	* Returns true if the given coordinate is blocked except by the
264	* object passed is not blocking. This is used with	63	* object passed is not blocking. This is used with
…		…
272	* by the caller.	71	* by the caller.
273	*/	72	*/
274	int	73	int
275	blocked_link (object *ob, maptile *m, int sx, int sy)	74	blocked_link (object *ob, maptile *m, int sx, int sy)
276	{	75	{
277	object *tmp;
278	int mflags, blocked;
279
280	/* 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
281	* have already checked this.	77	* have already checked this.
282	*/	78	*/
283	if (OUT_OF_REAL_MAP (m, sx, sy))	79	if (OUT_OF_REAL_MAP (m, sx, sy))
284	{	80	{
…		…
287	}	83	}
288		84
289	/* 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
290	* directly.	86	* directly.
291	*/	87	*/
292	mflags = m->at (sx, sy).flags ();	88	mapspace &ms = m->at (sx, sy);
293		89
294	blocked = GET_MAP_MOVE_BLOCK (m, sx, sy);	90	int mflags = ms.flags ();
		91	int blocked = ms.move_block;
295		92
296	/* If space is currently not blocked by anything, no need to	93	/* If space is currently not blocked by anything, no need to
297	* go further. Not true for players - all sorts of special	94	* go further. Not true for players - all sorts of special
298	* things we need to do for players.	95	* things we need to do for players.
299	*/	96	*/
300	if (ob->type != PLAYER && !(mflags & P_IS_ALIVE) && (blocked == 0))	97	if (ob->type != PLAYER && !(mflags & P_IS_ALIVE) && (blocked == 0))
301	return 0;	98	return 0;
302		99
303	/* 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
304	* 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
305	* 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
306	* or another. Likewise, only if something is blocking us do we	103	* or another. Likewise, only if something is blocking us do we
307	* need to investigate if there is a special circumstance that would	104	* need to investigate if there is a special circumstance that would
308	* let the player through (inventory checkers for example)	105	* let the player through (inventory checkers for example)
309	*/	106	*/
310	if (!(mflags & P_IS_ALIVE) && !OB_TYPE_MOVE_BLOCK (ob, blocked))	107	if (!(mflags & P_IS_ALIVE) && !OB_TYPE_MOVE_BLOCK (ob, blocked))
311	return 0;	108	return 0;
312		109
313	if (ob->head != NULL)
314	ob = ob->head;	110	ob = ob->head_ ();
315		111
316	/* 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
317	* 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
318	* true. If we get through the entire stack, that must mean	114	* true. If we get through the entire stack, that must mean
319	* ob is blocking it, so return 0.	115	* ob is blocking it, so return 0.
320	*/	116	*/
321	for (tmp = GET_MAP_OB (m, sx, sy); tmp; tmp = tmp->above)	117	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
322	{	118	{
		119	bool block = OB_MOVE_BLOCK (ob, tmp);
323		120
324	/* This must be before the checks below. Code for inventory checkers. */	121	/* This must be before the checks below. Code for inventory checkers. */
325	if (tmp->type == CHECK_INV && OB_MOVE_BLOCK (ob, tmp))	122	if (block && tmp->type == CHECK_INV)
326	{	123	{
		124	bool have = check_inv_recursive (ob, tmp);
		125
327	/* If last_sp is set, the player/monster needs an object,	126	/* If last_sp is set, the player/monster needs an object,
328	* 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
329	* pass through this space.	128	* pass through this space.
330	*/	129	*/
331	if (tmp->last_sp)	130	if (tmp->last_sp)
332	{	131	{
333	if (check_inv_recursive (ob, tmp) == NULL)	132	if (!have)
334	return 1;	133	return 1;
335	else
336	continue;
337	}	134	}
338	else	135	else
339	{	136	{
340	/* In this case, the player must not have the object -	137	/* In this case, the player must not have the object -
341	* if they do, they can't pass through.	138	* if they do, they can't pass through.
342	*/	139	*/
343	if (check_inv_recursive (ob, tmp) != NULL) /* player has object */	140	if (have)
344	return 1;	141	return 1;
345	else
346	continue;
347	}	142	}
348	} /* if check_inv */	143	}
		144	else if (block && tmp->type == T_MATCH)
		145	{
		146	//TODO
		147	}
349	else	148	else
350	{	149	{
351	/* Broke apart a big nasty if into several here to make	150	/* Broke apart a big nasty if into several here to make
352	* this more readable. first check - if the space blocks	151	* this more readable. first check - if the space blocks
353	* movement, can't move here.	152	* movement, can't move here.
354	* 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
355	* hidden dm	154	* dm.
356	*/	155	*/
357	if (OB_MOVE_BLOCK (ob, tmp))	156	if (block)
358	return 1;	157	return 1;
359	if (QUERY_FLAG (tmp, FLAG_ALIVE) && tmp->head != ob && tmp != ob &&	158
360	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])
361	return 1;	164	return 1;
362	}	165	}
363
364	}	166	}
		167
365	return 0;	168	return 0;
366	}	169	}
367		170
368
369	/*	171	/*
370	* 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
371	* This is meant for multi space objects - for single space objecs,	173	* spot. This is meant for multi space objects - for single space objecs,
372	* just calling get_map_blocked and checking that against movement type	174	* just calling get_map_blocked and checking that against movement type
373	* of object. This function goes through all the parts of the	175	* of object. This function goes through all the parts of the multipart
374	* multipart object and makes sure they can be inserted.	176	* object and makes sure they can be inserted.
375	*	177	*
376	* 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.
377	*	179	*
378	* This function has been used to deprecate arch_out_of_map -	180	* This function has been used to deprecate arch_out_of_map -
379	* this function also does that check, and since in most cases,	181	* this function also does that check, and since in most cases,
…		…
390	*	192	*
391	* Note this used to be arch_blocked, but with new movement	193	* Note this used to be arch_blocked, but with new movement
392	* 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
393	* against the move_block values.	195	* against the move_block values.
394	*/	196	*/
395	int	197	bool
396	ob_blocked (const object *ob, maptile *m, sint16 x, sint16 y)	198	object::blocked (maptile *m, int x, int y) const
397	{	199	{
398	archetype *tmp;	200	for (archetype *tmp = arch; tmp; tmp = (archetype *)tmp->more)
399	int flag;
400	maptile *m1;
401	sint16 sx, sy;
402
403	if (ob == NULL)
404	{
405	flag = get_map_flags (m, &m1, x, y, &sx, &sy);
406	if (flag & P_OUT_OF_MAP)
407	return P_OUT_OF_MAP;
408
409	/* don't have object, so don't know what types would block */
410	return m1->at (sx, sy).move_block;
411	}	201	{
		202	mapxy pos (m, x + tmp->x, y + tmp->y);
412		203
413	for (tmp = ob->arch; tmp; tmp = tmp->more)	204	if (!pos.normalise ())
414	{	205	return 1;
415	flag = get_map_flags (m, &m1, x + tmp->clone.x, y + tmp->clone.y, &sx, &sy);
416		206
417	if (flag & P_OUT_OF_MAP)	207	mapspace &ms = *pos;
418	return P_OUT_OF_MAP;	208
419	if (flag & P_IS_ALIVE)	209	if (ms.flags () & P_IS_ALIVE)
420	return P_IS_ALIVE;	210	return 1;
421		211
422	mapspace &ms = m1->at (sx, sy);	212	/* However, often ob doesn't have any move type
423		213	* (signifying non-moving objects)
424
425	/* find_first_free_spot() calls this function. However, often
426	* ob doesn't have any move type (when used to place exits)
427	* 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.
428	*/	215	*/
429
430	if (ob->move_type == 0 && ms.move_block != MOVE_ALL)	216	if (!move_type && ms.move_block != MOVE_ALL)
431	continue;	217	continue;
432		218
433	/* 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
434	* head of the object should correspond for the entire object.	220	* head of the object should correspond for the entire object.
435	*/	221	*/
436	if (OB_TYPE_MOVE_BLOCK (ob, ms.move_block))	222	if (ms.blocks (move_type))
437	return P_NO_PASS;	223	return 1;
438	}	224	}
439		225
440	return 0;	226	return 0;
441	}	227	}
442		228
…		…
444	* 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
445	* and insert them properly.	231	* and insert them properly.
446	* The object 'container' is the object that contains the inventory.	232	* The object 'container' is the object that contains the inventory.
447	* This is needed so that we can update the containers weight.	233	* This is needed so that we can update the containers weight.
448	*/	234	*/
449
450	void	235	void
451	fix_container (object *container)	236	fix_container (object *container)
452	{	237	{
453	object *tmp = container->inv, *next;	238	object *tmp = container->inv, *next;
454		239
455	container->inv = NULL;	240	container->inv = 0;
456	while (tmp != NULL)	241	while (tmp)
457	{	242	{
458	next = tmp->below;	243	next = tmp->below;
459	if (tmp->inv)	244	if (tmp->inv)
460	fix_container (tmp);	245	fix_container (tmp);
		246
461	(void) insert_ob_in_ob (tmp, container);	247	insert_ob_in_ob (tmp, container);
462	tmp = next;	248	tmp = next;
463	}	249	}
		250
464	/* sum_weight will go through and calculate what all the containers are	251	// go through and calculate what all the containers are carrying.
465	* carrying.	252	//TODO: remove
466	*/	253	container->update_weight ();
467	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);
468	}	278	}
469		279
470	/* 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
471	* 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
472	* 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
473	* they are saved). We do have to look for the old maps that did save	283	* they are saved).
474	* the more sections and not re-add sections for them.
475	*/	284	*/
476	static void	285	void
477	link_multipart_objects (maptile *m)	286	maptile::link_multipart_objects ()
478	{	287	{
479	int x, y;	288	if (!spaces)
480	object *tmp, *op, *last, *above;	289	return;
481	archetype *at;
482		290
483	for (x = 0; x < m->width; x++)	291	for (mapspace *ms = spaces + size (); ms-- > spaces; )
484	for (y = 0; y < m->height; y++)	292	{
485	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = above)	293	object *op = ms->bot;
		294	while (op)
486	{	295	{
487	above = tmp->above;
488
489	/* already multipart - don't do anything more */	296	/* already multipart - don't do anything more */
490	if (tmp->head || tmp->more)	297	if (op->head_ () == op && !op->more && op->arch->more)
491	continue;
492
493	/* If there is nothing more to this object, this for loop
494	* won't do anything.
495	*/
496	for (at = tmp->arch->more, last = tmp; at != NULL; at = at->more, last = op)
497	{	298	{
498	op = arch_to_object (at);	299	op->remove ();
		300	op->expand_tail ();
499		301
500	/* update x,y coordinates */	302	// FIXME: INS_ON_TOP is just a workaround for the pentagram vs.
501	op->x += tmp->x;	303	// multi-tile monster bug, where INS_ABOVE_FLOOR_ONLY put the monsters
502	op->y += tmp->y;	304	// below the pentagrams... hopefully INS_ON_TOP doesn't break anything
503	op->head = tmp;	305	insert (op, op->x, op->y, 0, INS_NO_MERGE | INS_ON_TOP | INS_NO_WALK_ON);
504	op->map = m;	306
505	last->more = op;	307	op = ms->bot; // we are mutating the mapspace too much with INS_ON_TOP
506	op->name = tmp->name;	308	// so we have to reset the iteration through the mapspace
507	op->title = tmp->title;
508	/* we could link all the parts onto tmp, and then just
509	* call insert_ob_in_map once, but the effect is the same,
510	* as insert_ob_in_map will call itself with each part, and
511	* the coding is simpler to just to it here with each part.
512	*/	309	}
513	insert_ob_in_map (op, op->map, tmp, INS_NO_MERGE | INS_ABOVE_FLOOR_ONLY | INS_NO_WALK_ON);	310	else
514	} /* for at = tmp->arch->more */	311	op = op->above;
515	} /* for objects on this space */	312	}
		313	}
516	}	314	}
517		315
518	/*	316	/*
519	* 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
520	* file pointer.	318	* file pointer.
521	* mapflags is the same as we get with load_original_map
522	*/	319	*/
523	void	320	bool
524	load_objects (maptile *m, object_thawer & fp, int mapflags)	321	maptile::_load_objects (object_thawer &f)
525	{	322	{
526	int i, j;	323	for (;;)
527	int unique;
528	object *op, *prev = NULL, *last_more = NULL, *otmp;
529
530	op = object::create ();
531	op->map = m; /* To handle buttons correctly */
532
533	while ((i = load_object (fp, op, mapflags)))
534	{	324	{
535	/* if the archetype for the object is null, means that we	325	coroapi::cede_to_tick (); // cede once in a while
536	* got an invalid object. Don't do anything with it - the game	326
537	* or editor will not be able to do anything with it either.	327	switch (f.kw)
538	*/
539	if (op->arch == NULL)
540	{	328	{
541	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
542	continue;	361	continue;
543	}
544		362
545	switch (i)
546	{
547	case LL_NORMAL:
548	/* if we are loading an overlay, put the floors on the bottom */
549	if ((QUERY_FLAG (op, FLAG_IS_FLOOR) || QUERY_FLAG (op, FLAG_OVERLAY_FLOOR)) && mapflags & MAP_OVERLAY)
550	insert_ob_in_map (op, m, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ABOVE_FLOOR_ONLY | INS_MAP_LOAD);
551	else
552	insert_ob_in_map (op, m, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ON_TOP | INS_MAP_LOAD);
553
554	if (op->inv)
555	sum_weight (op);
556
557	prev = op, last_more = op;
558	break;
559
560	case LL_MORE:	363	case KW_EOF:
561	insert_ob_in_map (op, m, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ABOVE_FLOOR_ONLY);	364	return true;
562	op->head = prev, last_more->more = op, last_more = op;	365
		366	default:
		367	if (!f.parse_error ("map file"))
		368	return false;
563	break;	369	break;
564	}	370	}
565		371
566	if (mapflags & MAP_STYLE)	372	f.next ();
567	remove_from_active_list (op);
568
569	op = object::create ();
570	op->map = m;
571	}
572
573	for (i = 0; i < m->width; i++)
574	{	373	}
575	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)
576	{	412	{
577	unique = 0;	413	unique |= op->flag [FLAG_UNIQUE] && op->flag [FLAG_IS_FLOOR];
578	/* check for unique items, or unique squares */	414
579	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]))
580	{	419	{
581	if (QUERY_FLAG (otmp, FLAG_UNIQUE) || QUERY_FLAG (otmp, FLAG_OBJ_SAVE_ON_OVL))	420	if (flags & IO_UNIQUES)
582	unique = 1;	421	op->write (f);
583
584	if (!(mapflags & (MAP_OVERLAY | MAP_PLAYER_UNIQUE) || unique))
585	SET_FLAG (otmp, FLAG_OBJ_ORIGINAL);
586	}	422	}
		423	else if (expect_true (flags & IO_OBJECTS))
		424	op->write (f);
587	}	425	}
588	}	426	}
589		427
590	op->destroy ();	428	coroapi::cede_to_tick ();
591	link_multipart_objects (m);
592	}
593		429
594	/* This saves all the objects on the map in a non destructive fashion.	430	return true;
595	* Modified by MSW 2001-07-01 to do in a single pass - reduces code,	431	}
596	* and we only save the head of multi part objects - this is needed
597	* in order to do map tiling properly.
598	*/
599	void
600	save_objects (maptile *m, object_freezer &fp, object_freezer &fp2, int flag)
601	{
602	int i, j = 0, unique = 0;
603	object *op;
604		432
605	/* first pass - save one-part objects */	433	bool
606	for (i = 0; i < m->width; i++)	434	maptile::_save_objects (const char *path, int flags)
607	for (j = 0; j < m->height; j++)	435	{
608	{	436	object_freezer freezer;
609	unique = 0;
610		437
611	for (op = m->at (i, j).bot; op; op = op->above)	438	if (!_save_objects (freezer, flags))
612	{	439	return false;
613	if (op->flag [FLAG_UNIQUE] && op->flag [FLAG_IS_FLOOR])
614	unique = 1;
615		440
616	if (!op->can_map_save ())	441	return freezer.save (path);
617	continue;
618
619	if (unique || op->flag [FLAG_UNIQUE])
620	save_object (fp2, op, 1);
621	else if (flag == 0 || (flag == 2 && (!op->flag [FLAG_OBJ_ORIGINAL] && !op->flag [FLAG_UNPAID])))
622	save_object (fp, op, 1);
623	}
624	}
625	}	442	}
626		443
627	maptile::maptile ()	444	maptile::maptile ()
628	{	445	{
629	in_memory = MAP_SWAPPED;	446	in_memory = MAP_SWAPPED;
630		447
631	/* 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
632	* map archetype. Mimic that behaviour.	449	* map archetype. Mimic that behaviour.
633	*/	450	*/
		451	width = 16;
		452	height = 16;
		453	timeout = 300;
		454	max_nrof = 1000; // 1000 items of anything
		455	max_volume = 2000000; // 2m³
		456	}
		457
		458	maptile::maptile (int w, int h)
		459	{
		460	in_memory = MAP_SWAPPED;
		461
634	width = 16;	462	width = w;
635	height = 16;	463	height = h;
636	reset_timeout = 0;	464	reset_timeout = 0;
637	timeout = 300;	465	timeout = 300;
638	enter_x = 0;	466	enter_x = 0;
639	enter_y = 0;	467	enter_y = 0;
640	/*set part to -1 indicating conversion to weather map not yet done */
641	worldpartx = -1;
642	worldparty = -1;
643	}
644		468
645	void	469	alloc ();
646	maptile::link ()
647	{
648	next = first_map;
649	first_map = this;
650	}
651
652	void
653	maptile::unlink ()
654	{
655	if (first_map == this)
656	first_map = next;
657	else
658	for_all_maps (m)
659	if (m->next = this)
660	{
661	m->next = next;
662	break;
663	}
664	}
665
666	/*
667	* Allocates, initialises, and returns a pointer to a maptile.
668	* Modified to no longer take a path option which was not being
669	* used anyways. MSW 2001-07-01
670	*/
671	maptile *
672	get_linked_map (void)
673	{
674	maptile *map = new maptile;
675	map->link ();
676	return map;
677	}	470	}
678		471
679	/*	472	/*
680	* Allocates the arrays contained in a maptile.	473	* Allocates the arrays contained in a maptile.
681	* This basically allocates the dynamic array of spaces for the	474	* This basically allocates the dynamic array of spaces for the
682	* map.	475	* map.
683	*/	476	*/
684	void	477	void
685	maptile::allocate ()	478	maptile::alloc ()
686	{	479	{
687	in_memory = MAP_IN_MEMORY;
688
689	/* Log this condition and free the storage. We could I suppose
690	* realloc, but if the caller is presuming the data will be intact,
691	* that is their poor assumption.
692	*/
693	if (spaces)	480	if (spaces)
694	{	481	return;
695	LOG (llevError, "allocate_map called with already allocated map (%s)\n", path);
696	sfree (spaces, size ());
697	}
698		482
699	spaces = salloc0<mapspace> (size ());	483	spaces = salloc0<mapspace> (size ());
700	}
701
702	/* Create and returns a map of the specific size. Used
703	* in random map code and the editor.
704	*/
705	maptile *
706	get_empty_map (int sizex, int sizey)
707	{
708	maptile *m = get_linked_map ();
709
710	m->width = sizex;
711	m->height = sizey;
712	m->in_memory = MAP_SWAPPED;
713	m->allocate ();
714
715	return m;
716	}	484	}
717		485
718	/* 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
719	* 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
720	* at a later date.	488	* at a later date.
721	* Called by parse_map_headers below.	489	* Called by parse_map_headers below.
722	*/	490	*/
723
724	static shopitems *	491	static shopitems *
725	parse_shop_string (const char *input_string)	492	parse_shop_string (const char *input_string)
726	{	493	{
727	char *shop_string, *p, *q, *next_semicolon, *next_colon;	494	char *shop_string, *p, *q, *next_semicolon, *next_colon;
728	shopitems *items = NULL;	495	shopitems *items = NULL;
…		…
837	* put all the stuff in the map object so that names actually make	604	* put all the stuff in the map object so that names actually make
838	* sense.	605	* sense.
839	* This could be done in lex (like the object loader), but I think	606	* This could be done in lex (like the object loader), but I think
840	* currently, there are few enough fields this is not a big deal.	607	* currently, there are few enough fields this is not a big deal.
841	* MSW 2001-07-01	608	* MSW 2001-07-01
842	* return 0 on success, 1 on failure.
843	*/	609	*/
844		610	bool
845	static int	611	maptile::_load_header (object_thawer &thawer)
846	load_map_header (object_thawer & fp, maptile *m)
847	{	612	{
848	char buf[HUGE_BUF], msgbuf[HUGE_BUF], maplorebuf[HUGE_BUF], *key = NULL, *value, *end;	613	for (;;)
849	int msgpos = 0;
850	int maplorepos = 0;
851
852	while (fgets (buf, HUGE_BUF, fp) != NULL)
853	{	614	{
854	buf[HUGE_BUF - 1] = 0;	615	switch (thawer.kw)
855	key = buf;
856
857	while (isspace (*key))
858	key++;
859
860	if (*key == 0)
861	continue; /* empty line */
862
863	value = strchr (key, ' ');
864
865	if (!value)
866	{	616	{
867	if ((end = strchr (key, '\n')))	617	case KW_msg:
868	*end = 0;	618	thawer.get_ml (KW_endmsg, msg);
		619	break;
		620
		621	case KW_lore: // CF+ extension
		622	thawer.get_ml (KW_endlore, maplore);
		623	break;
		624
		625	case KW_maplore:
		626	thawer.get_ml (KW_endmaplore, maplore);
		627	break;
		628
		629	case KW_arch:
		630	if (strcmp (thawer.get_str (), "map"))
		631	LOG (llevError, "%s: loading map and got a non 'arch map' line (arch %s), skipping.\n", &path, thawer.get_str ());
		632	break;
		633
		634	case KW_oid:
		635	thawer.get (this, thawer.get_sint32 ());
		636	break;
		637
		638	case KW_file_format_version: break; // nop
		639
		640	case KW_name: thawer.get (name); break;
		641	case KW_attach: thawer.get (attach); break;
		642	case KW_reset_time: thawer.get (reset_time); break;
		643	case KW_shopgreed: thawer.get (shopgreed); break;
		644	case KW_shopmin: thawer.get (shopmin); break;
		645	case KW_shopmax: thawer.get (shopmax); break;
		646	case KW_shoprace: thawer.get (shoprace); break;
		647	case KW_outdoor: thawer.get (outdoor); break;
		648	case KW_temp: thawer.get (temp); break;
		649	case KW_pressure: thawer.get (pressure); break;
		650	case KW_humid: thawer.get (humid); break;
		651	case KW_windspeed: thawer.get (windspeed); break;
		652	case KW_winddir: thawer.get (winddir); break;
		653	case KW_sky: thawer.get (sky); break;
		654
		655	case KW_per_player: thawer.get (per_player); break;
		656	case KW_per_party: thawer.get (per_party); break;
		657	case KW_no_reset: thawer.get (no_reset); break;
		658	case KW_no_drop: thawer.get (no_drop); break;
		659
		660	case KW_region: default_region = region::find (thawer.get_str ()); break;
		661	case KW_shopitems: shopitems = parse_shop_string (thawer.get_str ()); break;
		662
		663	// old names new names
		664	case KW_hp: case KW_enter_x: thawer.get (enter_x); break;
		665	case KW_sp: case KW_enter_y: thawer.get (enter_y); break;
		666	case KW_x: case KW_width: thawer.get (width); break;
		667	case KW_y: case KW_height: thawer.get (height); break;
		668	case KW_weight: case KW_reset_timeout: thawer.get (reset_timeout); break;
		669	case KW_value: case KW_swap_time: thawer.get (timeout); break;
		670	case KW_level: case KW_difficulty: thawer.get (difficulty); difficulty = clamp (difficulty, 1, settings.max_level); break;
		671	case KW_invisible: case KW_darkness: thawer.get (darkness); break;
		672	case KW_stand_still: case KW_fixed_resettime: thawer.get (fixed_resettime); break;
		673
		674	case KW_tile_path_1: thawer.get (tile_path [0]); break;
		675	case KW_tile_path_2: thawer.get (tile_path [1]); break;
		676	case KW_tile_path_3: thawer.get (tile_path [2]); break;
		677	case KW_tile_path_4: thawer.get (tile_path [3]); break;
		678
		679	case KW_ERROR:
		680	set_key_text (thawer.kw_str, thawer.value);
		681	break;
		682
		683	case KW_end:
		684	thawer.next ();
		685	return true;
		686
		687	default:
		688	if (!thawer.parse_error ("map", 0))
		689	return false;
		690	break;
869	}	691	}
870	else
871	{
872	*value = 0;
873	value++;
874	end = strchr (value, '\n');
875		692
876	while (isspace (*value))	693	thawer.next ();
877	{
878	value++;
879
880	if (*value == '\0' || value == end)
881	{
882	/* Nothing but spaces. */
883	value = NULL;
884	break;
885	}
886	}
887	}
888
889	if (!end)
890	{
891	LOG (llevError, "Error loading map header - did not find a newline - perhaps file is truncated? Buf=%s\n", buf);
892	return 1;
893	}
894
895	/* key is the field name, value is what it should be set
896	* to. We've already done the work to null terminate key,
897	* and strip off any leading spaces for both of these.
898	* We have not touched the newline at the end of the line -
899	* these are needed for some values. the end pointer
900	* points to the first of the newlines.
901	* value could be NULL! It would be easy enough to just point
902	* this to "" to prevent cores, but that would let more errors slide
903	* through.
904	*
905	* First check for entries that do not use the value parameter, then
906	* validate that value is given and check for the remaining entries
907	* that use the parameter.
908	*/
909
910	if (!strcmp (key, "msg"))
911	{
912	while (fgets (buf, HUGE_BUF, fp) != NULL)
913	{
914	if (!strcmp (buf, "endmsg\n"))
915	break;
916	else
917	{
918	/* slightly more efficient than strcat */
919	strcpy (msgbuf + msgpos, buf);
920	msgpos += strlen (buf);
921	}
922	}
923	/* There are lots of maps that have empty messages (eg, msg/endmsg
924	* with nothing between). There is no reason in those cases to
925	* keep the empty message. Also, msgbuf contains garbage data
926	* when msgpos is zero, so copying it results in crashes
927	*/
928	if (msgpos != 0)
929	m->msg = strdup (msgbuf);
930	}
931	else if (!strcmp (key, "maplore"))
932	{
933	while (fgets (buf, HUGE_BUF, fp) != NULL)
934	{
935	if (!strcmp (buf, "endmaplore\n"))
936	break;
937	else
938	{
939	/* slightly more efficient than strcat */
940	strcpy (maplorebuf + maplorepos, buf);
941	maplorepos += strlen (buf);
942	}
943	}
944	if (maplorepos != 0)
945	m->maplore = strdup (maplorebuf);
946	}
947	else if (!strcmp (key, "end"))
948	{
949	break;
950	}
951	else if (value == NULL)
952	{
953	LOG (llevError, "Got '%s' line without parameter in map header\n", key);
954	}
955	else if (!strcmp (key, "arch"))
956	{
957	/* This is an oddity, but not something we care about much. */
958	if (strcmp (value, "map\n"))
959	LOG (llevError, "loading map and got a non 'arch map' line(%s %s)?\n", key, value);
960	}
961	else if (!strcmp (key, "name"))
962	{
963	*end = 0;
964	m->name = strdup (value);
965	}
966	/* first strcmp value on these are old names supported
967	* for compatibility reasons. The new values (second) are
968	* what really should be used.
969	*/
970	else if (!strcmp (key, "oid"))
971	fp.get (m, atoi (value));
972	else if (!strcmp (key, "attach"))
973	m->attach = value;
974	else if (!strcmp (key, "hp") || !strcmp (key, "enter_x"))
975	m->enter_x = atoi (value);
976	else if (!strcmp (key, "sp") || !strcmp (key, "enter_y"))
977	m->enter_y = atoi (value);
978	else if (!strcmp (key, "x") || !strcmp (key, "width"))
979	m->width = atoi (value);
980	else if (!strcmp (key, "y") || !strcmp (key, "height"))
981	m->height = atoi (value);
982	else if (!strcmp (key, "weight") || !strcmp (key, "reset_timeout"))
983	m->reset_timeout = atoi (value);
984	else if (!strcmp (key, "value") || !strcmp (key, "swap_time"))
985	m->timeout = atoi (value);
986	else if (!strcmp (key, "level") || !strcmp (key, "difficulty"))
987	m->difficulty = clamp (atoi (value), 1, settings.max_level);
988	else if (!strcmp (key, "invisible") || !strcmp (key, "darkness"))
989	m->darkness = atoi (value);
990	else if (!strcmp (key, "stand_still") || !strcmp (key, "fixed_resettime"))
991	m->fixed_resettime = atoi (value);
992	else if (!strcmp (key, "unique"))
993	m->unique = atoi (value);
994	else if (!strcmp (key, "template"))
995	m->templatemap = atoi (value);
996	else if (!strcmp (key, "region"))
997	m->region = get_region_by_name (value);
998	else if (!strcmp (key, "shopitems"))
999	{
1000	*end = 0;
1001	m->shopitems = parse_shop_string (value);
1002	}
1003	else if (!strcmp (key, "shopgreed"))
1004	m->shopgreed = atof (value);
1005	else if (!strcmp (key, "shopmin"))
1006	m->shopmin = atol (value);
1007	else if (!strcmp (key, "shopmax"))
1008	m->shopmax = atol (value);
1009	else if (!strcmp (key, "shoprace"))
1010	{
1011	*end = 0;
1012	m->shoprace = strdup (value);
1013	}
1014	else if (!strcmp (key, "outdoor"))
1015	m->outdoor = atoi (value);
1016	else if (!strcmp (key, "temp"))
1017	m->temp = atoi (value);
1018	else if (!strcmp (key, "pressure"))
1019	m->pressure = atoi (value);
1020	else if (!strcmp (key, "humid"))
1021	m->humid = atoi (value);
1022	else if (!strcmp (key, "windspeed"))
1023	m->windspeed = atoi (value);
1024	else if (!strcmp (key, "winddir"))
1025	m->winddir = atoi (value);
1026	else if (!strcmp (key, "sky"))
1027	m->sky = atoi (value);
1028	else if (!strcmp (key, "nosmooth"))
1029	m->nosmooth = atoi (value);
1030	else if (!strncmp (key, "tile_path_", 10))
1031	{
1032	int tile = atoi (key + 10);
1033
1034	if (tile < 1 || tile > 4)
1035	{
1036	LOG (llevError, "load_map_header: tile location %d out of bounds (%s)\n", tile, m->path);
1037	}
1038	else
1039	{
1040	char *path;
1041
1042	*end = 0;
1043
1044	if (m->tile_path[tile - 1])
1045	{
1046	LOG (llevError, "load_map_header: tile location %d duplicated (%s)\n", tile, m->path);
1047	free (m->tile_path[tile - 1]);
1048	m->tile_path[tile - 1] = NULL;
1049	}
1050
1051	if (check_path (value, 1) != -1)
1052	{
1053	/* The unadorned path works. */
1054	path = value;
1055	}
1056	else
1057	{
1058	/* Try again; it could be a relative exit. */
1059
1060	path = path_combine_and_normalize (m->path, value);
1061
1062	if (check_path (path, 1) == -1)
1063	{
1064	LOG (llevError, "get_map_header: Bad tile path %s %s\n", m->path, value);
1065	path = NULL;
1066	}
1067	}
1068
1069	if (editor)
1070	{
1071	/* Use the value as in the file. */
1072	m->tile_path[tile - 1] = strdup (value);
1073	}
1074	else if (path != NULL)
1075	{
1076	/* Use the normalized value. */
1077	m->tile_path[tile - 1] = strdup (path);
1078	}
1079	} /* end if tile direction (in)valid */
1080	}
1081	else
1082	LOG (llevError, "Got unknown value in map header: %s %s\n", key, value);
1083	}
1084
1085	if (!key || strcmp (key, "end"))
1086	{	694	}
1087	LOG (llevError, "Got premature eof on map header!\n");
1088	return 1;
1089	}
1090		695
1091	return 0;	696	abort ();
1092	}
1093
1094	/*
1095	* Opens the file "filename" and reads information about the map
1096	* from the given file, and stores it in a newly allocated
1097	* maptile. A pointer to this structure is returned, or NULL on failure.
1098	* flags correspond to those in map.h. Main ones used are
1099	* MAP_PLAYER_UNIQUE, in which case we don't do any name changes, and
1100	* MAP_BLOCK, in which case we block on this load. This happens in all
1101	* cases, no matter if this flag is set or not.
1102	* MAP_STYLE: style map - don't add active objects, don't add to server
1103	* managed map list.
1104	*/
1105	maptile *
1106	load_original_map (const char *filename, int flags)
1107	{
1108	maptile *m;
1109	char pathname[MAX_BUF];
1110
1111	if (flags & MAP_PLAYER_UNIQUE)
1112	strcpy (pathname, filename);
1113	else if (flags & MAP_OVERLAY)
1114	strcpy (pathname, create_overlay_pathname (filename));
1115	else
1116	strcpy (pathname, create_pathname (filename));
1117
1118	LOG (llevDebug, "load_original_map(%x): %s (%s)\n", flags, filename, pathname);
1119
1120	object_thawer thawer (pathname);
1121
1122	if (!thawer)
1123	return 0;
1124
1125	m = get_linked_map ();
1126
1127	strcpy (m->path, filename);
1128	if (load_map_header (thawer, m))
1129	{
1130	LOG (llevError, "Error loading map header for %s, flags=%d\n", filename, flags);
1131	delete_map (m);
1132	return 0;
1133	}
1134
1135	m->allocate ();
1136
1137	m->in_memory = MAP_LOADING;
1138	load_objects (m, thawer, flags & (MAP_BLOCK | MAP_STYLE));
1139
1140	m->in_memory = MAP_IN_MEMORY;
1141	if (!m->difficulty)
1142	m->difficulty = calculate_difficulty (m);
1143	set_map_reset_time (m);
1144	m->instantiate ();
1145	return (m);
1146	}
1147
1148	/*
1149	* Loads a map, which has been loaded earlier, from file.
1150	* Return the map object we load into (this can change from the passed
1151	* option if we can't find the original map)
1152	*/
1153	static maptile *
1154	load_temporary_map (maptile *m)
1155	{
1156	char buf[MAX_BUF];
1157
1158	if (!m->tmpname)
1159	{
1160	LOG (llevError, "No temporary filename for map %s\n", m->path);
1161	strcpy (buf, m->path);
1162	delete_map (m);
1163	m = load_original_map (buf, 0);
1164	if (m == NULL)
1165	return NULL;
1166	fix_auto_apply (m); /* Chests which open as default */
1167	return m;
1168	}
1169
1170	object_thawer thawer (m->tmpname);
1171
1172	if (!thawer)
1173	{
1174	strcpy (buf, m->path);
1175	delete_map (m);
1176	m = load_original_map (buf, 0);
1177	if (!m)
1178	return NULL;
1179	fix_auto_apply (m); /* Chests which open as default */
1180	return m;
1181	}
1182
1183	if (load_map_header (thawer, m))
1184	{
1185	LOG (llevError, "Error loading map header for %s (%s)\n", m->path, m->tmpname);
1186	delete_map (m);
1187	m = load_original_map (m->path, 0);
1188	return NULL;
1189	}
1190
1191	m->allocate ();
1192
1193	m->in_memory = MAP_LOADING;
1194	load_objects (m, thawer, 0);
1195
1196	m->in_memory = MAP_IN_MEMORY;
1197	INVOKE_MAP (SWAPIN, m);
1198	return m;
1199	}
1200
1201	/*
1202	* Loads a map, which has been loaded earlier, from file.
1203	* Return the map object we load into (this can change from the passed
1204	* option if we can't find the original map)
1205	*/
1206	maptile *
1207	load_overlay_map (const char *filename, maptile *m)
1208	{
1209	char pathname[MAX_BUF];
1210
1211	strcpy (pathname, create_overlay_pathname (filename));
1212
1213	object_thawer thawer (pathname);
1214
1215	if (!thawer)
1216	return m;
1217
1218	if (load_map_header (thawer, m))
1219	{
1220	LOG (llevError, "Error loading map header for overlay %s (%s)\n", m->path, pathname);
1221	delete_map (m);
1222	m = load_original_map (m->path, 0);
1223	return 0;
1224	}
1225	/*m->allocate ();*/
1226
1227	m->in_memory = MAP_LOADING;
1228	load_objects (m, thawer, MAP_OVERLAY);
1229
1230	m->in_memory = MAP_IN_MEMORY;
1231	return m;
1232	}	697	}
1233		698
1234	/******************************************************************************	699	/******************************************************************************
1235	* This is the start of unique map handling code	700	* This is the start of unique map handling code
1236	*****************************************************************************/	701	*****************************************************************************/
1237		702
1238	/* This goes through map 'm' and removed any unique items on the map. */	703	/* This goes through the maptile and removed any unique items on the map. */
1239	static void	704	void
1240	delete_unique_items (maptile *m)	705	maptile::clear_unique_items ()
1241	{	706	{
1242	int i, j, unique;	707	for (int i = 0; i < size (); ++i)
1243	object *op, *next;
1244
1245	for (i = 0; i < m->width; i++)
1246	for (j = 0; j < m->height; j++)
1247	{	708	{
1248	unique = 0;	709	int unique = 0;
		710	for (object *op = spaces [i].bot; op; )
		711	{
		712	object *above = op->above;
1249		713
1250	for (op = GET_MAP_OB (m, i, j); op; op = next)	714	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))
		715	unique = 1;
		716
		717	if (op->head_ () == op && (QUERY_FLAG (op, FLAG_UNIQUE) || unique))
		718	op->destroy ();
		719
		720	op = above;
		721	}
		722	}
		723	}
		724
		725	bool
		726	maptile::_save_header (object_freezer &freezer)
		727	{
		728	#define MAP_OUT(k) freezer.put (KW_ ## k, k)
		729	#define MAP_OUT2(k,v) freezer.put (KW_ ## k, v)
		730
		731	MAP_OUT2 (arch, "map");
		732
		733	if (name) MAP_OUT (name);
		734	MAP_OUT (swap_time);
		735	MAP_OUT (reset_time);
		736	MAP_OUT (reset_timeout);
		737	MAP_OUT (fixed_resettime);
		738	MAP_OUT (no_reset);
		739	MAP_OUT (no_drop);
		740	MAP_OUT (difficulty);
		741
		742	if (default_region) MAP_OUT2 (region, default_region->name);
		743
		744	if (shopitems)
		745	{
		746	char shop[MAX_BUF];
		747	print_shop_string (this, shop);
		748	MAP_OUT2 (shopitems, shop);
		749	}
		750
		751	MAP_OUT (shopgreed);
		752	MAP_OUT (shopmin);
		753	MAP_OUT (shopmax);
		754	if (shoprace) MAP_OUT (shoprace);
		755	MAP_OUT (darkness);
		756	MAP_OUT (width);
		757	MAP_OUT (height);
		758	MAP_OUT (enter_x);
		759	MAP_OUT (enter_y);
		760
		761	if (msg) freezer.put (KW_msg , KW_endmsg , msg);
		762	if (maplore) freezer.put (KW_maplore, KW_endmaplore, maplore);
		763
		764	MAP_OUT (outdoor);
		765	MAP_OUT (temp);
		766	MAP_OUT (pressure);
		767	MAP_OUT (humid);
		768	MAP_OUT (windspeed);
		769	MAP_OUT (winddir);
		770	MAP_OUT (sky);
		771
		772	MAP_OUT (per_player);
		773	MAP_OUT (per_party);
		774
		775	if (tile_path [0]) MAP_OUT2 (tile_path_1, tile_path [0]);
		776	if (tile_path [1]) MAP_OUT2 (tile_path_2, tile_path [1]);
		777	if (tile_path [2]) MAP_OUT2 (tile_path_3, tile_path [2]);
		778	if (tile_path [3]) MAP_OUT2 (tile_path_4, tile_path [3]);
		779
		780	freezer.put (this);
		781	freezer.put (KW_end);
		782
		783	return true;
		784	}
		785
		786	bool
		787	maptile::_save_header (const char *path)
		788	{
		789	object_freezer freezer;
		790
		791	if (!_save_header (freezer))
		792	return false;
		793
		794	return freezer.save (path);
		795	}
		796
		797	/*
		798	* Remove and free all objects in the given map.
		799	*/
		800	void
		801	maptile::clear ()
		802	{
		803	if (spaces)
		804	{
		805	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		806	while (object *op = ms->bot)
1251	{	807	{
		808	// manually remove, as to not trigger anything
1252	next = op->above;	809	if (ms->bot = op->above)
		810	ms->bot->below = 0;
1253		811
1254	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))	812	op->flag [FLAG_REMOVED] = true;
1255	unique = 1;
1256		813
1257	if (op->head == NULL && (QUERY_FLAG (op, FLAG_UNIQUE) || unique))	814	object *head = op->head_ ();
		815	if (op == head)
		816	op->destroy ();
		817	else if (head->map != op->map)
1258	{	818	{
1259	op->destroy_inv (false);	819	LOG (llevDebug, "bad luck for object crossing map borders: %s", head->debug_desc ());
1260	op->destroy ();	820	head->destroy ();
1261	}	821	}
1262	}	822	}
		823
		824	sfree0 (spaces, size ());
1263	}	825	}
1264	}
1265		826
1266	/*	827	if (buttons)
1267	* Loads unique objects from file(s) into the map which is in memory	828	free_objectlinkpt (buttons), buttons = 0;
1268	* m is the map to load unique items into.
1269	*/
1270	static void
1271	load_unique_objects (maptile *m)
1272	{
1273	int count;
1274	char firstname[MAX_BUF];
1275		829
1276	for (count = 0; count < 10; count++)	830	sfree0 (regions, size ());
1277	{	831	delete [] regionmap; regionmap = 0;
1278	sprintf (firstname, "%s.v%02d", create_items_path (m->path), count);
1279	if (!access (firstname, R_OK))
1280	break;
1281	}
1282	/* If we get here, we did not find any map */
1283	if (count == 10)
1284	return;
1285
1286	object_thawer thawer (firstname);
1287
1288	if (!thawer)
1289	return;
1290
1291	m->in_memory = MAP_LOADING;
1292	if (m->tmpname == NULL) /* if we have loaded unique items from */
1293	delete_unique_items (m); /* original map before, don't duplicate them */
1294
1295	load_objects (m, thawer, 0);
1296
1297	m->in_memory = MAP_IN_MEMORY;
1298	}	832	}
1299		833
1300	/*
1301	* Saves a map to file. If flag is set, it is saved into the same
1302	* file it was (originally) loaded from. Otherwise a temporary
1303	* filename will be genarated, and the file will be stored there.
1304	* The temporary filename will be stored in the maptileure.
1305	* If the map is unique, we also save to the filename in the map
1306	* (this should have been updated when first loaded)
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	834	void
1453	free_all_objects (maptile *m)	835	maptile::clear_header ()
1454	{	836	{
1455	if (!m->spaces)	837	name = 0;
1456	return;	838	msg = 0;
		839	maplore = 0;
		840	shoprace = 0;
		841	delete [] shopitems, shopitems = 0;
1457		842
1458	for (int i = 0; i < m->width; i++)	843	for (int i = 0; i < 4; i++)
1459	for (int j = 0; j < m->height; j++)	844	tile_path [i] = 0;
1460	{
1461	mapspace &ms = m->at (i, j);
1462
1463	while (object *op = ms.bot)
1464	{
1465	if (op->head)
1466	op = op->head;
1467
1468	op->destroy_inv (false);
1469	op->destroy ();
1470	}
1471	}
1472	}	845	}
1473		846
1474	/*	847	maptile::~maptile ()
1475	* Frees everything allocated by the given maptileure.	848	{
1476	* don't free tmpname - our caller is left to do that	849	assert (destroyed ());
1477	*/	850	}
		851
1478	void	852	void
1479	free_map (maptile *m, int flag)	853	maptile::clear_links_to (maptile *m)
1480	{	854	{
1481	if (!m->in_memory) //TODO: makes no sense to me?
1482	return;
1483
1484	m->in_memory = MAP_SAVING;
1485
1486	// TODO: use new/delete
1487
1488	if (flag && m->spaces)
1489	free_all_objects (m);
1490
1491	sfree (m->spaces, m->size ()), m->spaces = 0;
1492
1493	free (m->name), m->name = 0;
1494	free (m->msg), m->msg = 0;
1495	free (m->maplore), m->maplore = 0;
1496	free (m->shoprace), m->shoprace = 0;
1497	delete [] m->shopitems, m->shopitems = 0;
1498
1499	if (m->buttons)
1500	free_objectlinkpt (m->buttons), m->buttons = 0;
1501
1502	for (int i = 0; i < 4; i++)
1503	free (m->tile_path[i]), m->tile_path[i] = 0;
1504
1505	m->in_memory = MAP_SWAPPED;
1506	}
1507
1508	maptile::~maptile ()
1509	{
1510	assert (destroyed ());
1511	}
1512
1513	void
1514	maptile::do_destroy ()
1515	{
1516	attachable::do_destroy ();
1517
1518	unlink ();
1519
1520	free_map (this, 1);
1521	free (tmpname), tmpname = 0;
1522
1523	/* We need to look through all the maps and see if any maps	855	/* We need to look through all the maps and see if any maps
1524	* are pointing at this one for tiling information. Since	856	* are pointing at this one for tiling information. Since
1525	* tiling can be asymetric, we just can not look to see which	857	* tiling can be asymetric, we just can not look to see which
1526	* maps this map tiles with and clears those.	858	* maps this map tiles with and clears those.
1527	*/	859	*/
1528	//TODO: non-euclidean-tiling MUST GO
1529	for_all_maps (m)
1530	for (int i = 0; i < 4; i++)	860	for (int i = 0; i < 4; i++)
1531	if (m->tile_map[i] == this)	861	if (tile_map[i] == m)
1532	m->tile_map[i] = 0;	862	tile_map[i] = 0;
1533	}	863	}
1534		864
1535	//TODO: must go
1536	void	865	void
1537	delete_map (maptile *m)	866	maptile::do_destroy ()
1538	{	867	{
1539	if (m)	868	attachable::do_destroy ();
1540	m->destroy ();
1541	}
1542		869
1543	/*	870	clear ();
1544	* Makes sure the given map is loaded and swapped in.	871	}
1545	* name is path name of the map.	872
1546	* flags meaning:	873	/* decay and destroy perishable items in a map */
1547	* 0x1 (MAP_FLUSH): flush the map - always load from the map directory,	874	void
1548	* and don't do unique items or the like.	875	maptile::do_decay_objects ()
1549	* 0x2 (MAP_PLAYER_UNIQUE) - this is a unique map for each player.
1550	* dont do any more name translation on it.
1551	*
1552	* Returns a pointer to the given map.
1553	*/
1554	maptile *
1555	ready_map_name (const char *name, int flags)
1556	{	876	{
1557	if (!name)	877	if (!spaces)
1558	return 0;	878	return;
1559		879
1560	/* Have we been at this level before? */	880	for (mapspace *ms = spaces + size (); ms-- > spaces; )
1561	maptile *m = has_been_loaded (name);	881	for (object *above, *op = ms->bot; op; op = above)
1562
1563	/* Map is good to go, so just return it */
1564	if (m && (m->in_memory == MAP_LOADING || m->in_memory == MAP_IN_MEMORY))
1565	return m;
1566
1567	/* unique maps always get loaded from their original location, and never
1568	* a temp location. Likewise, if map_flush is set, or we have never loaded
1569	* this map, load it now. I removed the reset checking from here -
1570	* it seems the probability of a player trying to enter a map that should
1571	* reset but hasn't yet is quite low, and removing that makes this function
1572	* a bit cleaner (and players probably shouldn't rely on exact timing for
1573	* resets in any case - if they really care, they should use the 'maps command.
1574	*/
1575	if ((flags & (MAP_FLUSH | MAP_PLAYER_UNIQUE)) || !m)
1576	{	882	{
1577	/* first visit or time to reset */	883	above = op->above;
1578	if (m)	884
		885	bool destroy = 0;
		886
		887	// do not decay anything above unique floor tiles (yet :)
		888	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))
		889	break;
		890
		891	if (QUERY_FLAG (op, FLAG_IS_FLOOR)
		892	|| QUERY_FLAG (op, FLAG_OBJ_ORIGINAL)
		893	|| QUERY_FLAG (op, FLAG_UNIQUE)
		894	|| QUERY_FLAG (op, FLAG_OVERLAY_FLOOR)
		895	|| QUERY_FLAG (op, FLAG_UNPAID)
		896	|| op->is_alive ())
		897	; // do not decay
		898	else if (op->is_weapon ())
1579	{	899	{
1580	clean_tmp_map (m); /* Doesn't make much difference */	900	op->stats.dam--;
1581	delete_map (m);	901	if (op->stats.dam < 0)
		902	destroy = 1;
1582	}	903	}
1583		904	else if (op->is_armor ())
1584	/* create and load a map */	905	{
1585	if (flags & MAP_PLAYER_UNIQUE)	906	op->stats.ac--;
1586	LOG (llevDebug, "Trying to load map %s.\n", name);	907	if (op->stats.ac < 0)
		908	destroy = 1;
		909	}
		910	else if (op->type == FOOD)
		911	{
		912	op->stats.food -= rndm (5, 20);
		913	if (op->stats.food < 0)
		914	destroy = 1;
		915	}
1587	else	916	else
1588	LOG (llevDebug, "Trying to load map %s.\n", create_pathname (name));
1589
1590	if (!(m = load_original_map (name, (flags & MAP_PLAYER_UNIQUE))))
1591	return (NULL);
1592
1593	fix_auto_apply (m); /* Chests which open as default */
1594
1595	/* If a player unique map, no extra unique object file to load.
1596	* if from the editor, likewise.
1597	*/
1598	if (!(flags & (MAP_FLUSH | MAP_PLAYER_UNIQUE)))
1599	load_unique_objects (m);
1600
1601	if (!(flags & (MAP_FLUSH | MAP_PLAYER_UNIQUE | MAP_OVERLAY)))
1602	{	917	{
1603	m = load_overlay_map (name, m);	918	int mat = op->materials;
1604	if (m == NULL)	919
1605	return NULL;	920	if (mat & M_PAPER
		921	|| mat & M_LEATHER
		922	|| mat & M_WOOD
		923	|| mat & M_ORGANIC
		924	|| mat & M_CLOTH
		925	|| mat & M_LIQUID
		926	|| (mat & M_IRON && rndm (1, 5) == 1)
		927	|| (mat & M_GLASS && rndm (1, 2) == 1)
		928	|| ((mat & M_STONE || mat & M_ADAMANT) && rndm (1, 10) == 1)
		929	|| ((mat & M_SOFT_METAL || mat & M_BONE) && rndm (1, 3) == 1)
		930	|| (mat & M_ICE && temp > 32))
		931	destroy = 1;
1606	}	932	}
1607		933
1608	if (flags & MAP_PLAYER_UNIQUE)	934	/* adjust overall chance below */
1609	INVOKE_MAP (SWAPIN, m);	935	if (destroy && rndm (0, 1))
1610		936	op->destroy ();
1611	}	937	}
1612	else
1613	{
1614	/* If in this loop, we found a temporary map, so load it up. */
1615
1616	m = load_temporary_map (m);
1617	if (m == NULL)
1618	return NULL;
1619	load_unique_objects (m);
1620
1621	clean_tmp_map (m);
1622	m->in_memory = MAP_IN_MEMORY;
1623	/* tempnam() on sun systems (probably others) uses malloc
1624	* to allocated space for the string. Free it here.
1625	* In some cases, load_temporary_map above won't find the
1626	* temporary map, and so has reloaded a new map. If that
1627	* is the case, tmpname is now null
1628	*/
1629	if (m->tmpname)
1630	free (m->tmpname);
1631	m->tmpname = NULL;
1632	/* It's going to be saved anew anyway */
1633	}
1634
1635	/* Below here is stuff common to both first time loaded maps and
1636	* temp maps.
1637	*/
1638
1639	decay_objects (m); /* start the decay */
1640	/* In case other objects press some buttons down */
1641	update_buttons (m);
1642	if (m->outdoor)
1643	set_darkness_map (m);
1644	/* run the weather over this map */
1645	weather_effect (name);
1646	return m;
1647	}	938	}
1648
1649		939
1650	/*	940	/*
1651	* This routine is supposed to find out the difficulty of the map.	941	* This routine is supposed to find out the difficulty of the map.
1652	* difficulty does not have a lot to do with character level,	942	* difficulty does not have a lot to do with character level,
1653	* but does have a lot to do with treasure on the map.	943	* but does have a lot to do with treasure on the map.
1654	*	944	*
1655	* Difficulty can now be set by the map creature. If the value stored	945	* Difficulty can now be set by the map creator. If the value stored
1656	* in the map is zero, then use this routine. Maps should really	946	* in the map is zero, then use this routine. Maps should really
1657	* have a difficulty set than using this function - human calculation	947	* have a difficulty set rather than using this function - human calculation
1658	* is much better than this functions guesswork.	948	* is much better than this function's guesswork.
1659	*/	949	*/
1660
1661	int	950	int
1662	calculate_difficulty (maptile *m)	951	maptile::estimate_difficulty () const
1663	{	952	{
1664	object *op;
1665	archetype *at;
1666	int x, y, i;
1667	long monster_cnt = 0;	953	long monster_cnt = 0;
1668	double avgexp = 0;	954	double avgexp = 0;
1669	sint64 total_exp = 0;	955	sint64 total_exp = 0;
1670		956
1671	if (m->difficulty)	957	for (mapspace *ms = spaces + size (); ms-- > spaces; )
1672	{	958	for (object *op = ms->bot; op; op = op->above)
1673	LOG (llevDebug, "Using stored map difficulty: %d\n", m->difficulty);
1674	return m->difficulty;
1675	}
1676
1677	for (x = 0; x < m->width; x++)
1678	for (y = 0; y < m->height; y++)
1679	for (op = GET_MAP_OB (m, x, y); op != NULL; op = op->above)
1680	{	959	{
1681	if (QUERY_FLAG (op, FLAG_MONSTER))	960	if (QUERY_FLAG (op, FLAG_MONSTER))
1682	{	961	{
1683	total_exp += op->stats.exp;	962	total_exp += op->stats.exp;
1684	monster_cnt++;	963	monster_cnt++;
1685	}	964	}
1686		965
1687	if (QUERY_FLAG (op, FLAG_GENERATOR))	966	if (QUERY_FLAG (op, FLAG_GENERATOR))
1688	{	967	{
1689	total_exp += op->stats.exp;	968	total_exp += op->stats.exp;
1690	at = type_to_archetype (GENERATE_TYPE (op));
1691		969
1692	if (at != NULL)	970	if (archetype *at = op->other_arch)
		971	{
1693	total_exp += at->clone.stats.exp * 8;	972	total_exp += at->stats.exp * 8;
1694
1695	monster_cnt++;	973	monster_cnt++;
1696	}	974	}
		975
		976	for (object *inv = op->inv; inv; inv = inv->below)
		977	{
		978	total_exp += op->stats.exp * 8;
		979	monster_cnt++;
		980	}
1697	}	981	}
		982	}
1698		983
1699	avgexp = (double) total_exp / monster_cnt;	984	avgexp = (double) total_exp / monster_cnt;
1700		985
1701	for (i = 1; i <= settings.max_level; i++)	986	for (int i = 1; i <= settings.max_level; i++)
1702	{
1703	if ((level_exp (i, 1) - level_exp (i - 1, 1)) > (100 * avgexp))	987	if ((level_exp (i, 1) - level_exp (i - 1, 1)) > (100 * avgexp))
1704	{
1705	/* LOG(llevDebug, "Calculated difficulty for map: %s: %d\n", m->name, i); */
1706	return i;	988	return i;
1707	}
1708	}
1709		989
1710	return 1;	990	return 1;
1711	}
1712
1713	void
1714	clean_tmp_map (maptile *m)
1715	{
1716	if (m->tmpname == NULL)
1717	return;
1718	INVOKE_MAP (CLEAN, m);
1719	(void) unlink (m->tmpname);
1720	}
1721
1722	void
1723	free_all_maps (void)
1724	{
1725	int real_maps = 0;
1726
1727	while (first_map)
1728	{
1729	/* I think some of the callers above before it gets here set this to be
1730	* saving, but we still want to free this data
1731	*/
1732	if (first_map->in_memory == MAP_SAVING)
1733	first_map->in_memory = MAP_IN_MEMORY;
1734	delete_map (first_map);
1735	real_maps++;
1736	}
1737
1738	LOG (llevDebug, "free_all_maps: Freed %d maps\n", real_maps);
1739	}	991	}
1740		992
1741	/* change_map_light() - used to change map light level (darkness)	993	/* change_map_light() - used to change map light level (darkness)
1742	* up or down. Returns true if successful. It should now be	994	* up or down. Returns true if successful. It should now be
1743	* possible to change a value by more than 1.	995	* possible to change a value by more than 1.
1744	* Move this from los.c to map.c since this is more related	996	* Move this from los.c to map.c since this is more related
1745	* to maps than los.	997	* to maps than los.
1746	* postive values make it darker, negative make it brighter	998	* postive values make it darker, negative make it brighter
1747	*/	999	*/
1748
1749	int	1000	int
1750	change_map_light (maptile *m, int change)	1001	maptile::change_map_light (int change)
1751	{	1002	{
1752	int new_level = m->darkness + change;
1753
1754	/* Nothing to do */	1003	/* Nothing to do */
1755	if (!change || (new_level <= 0 && m->darkness == 0) || (new_level >= MAX_DARKNESS && m->darkness >= MAX_DARKNESS))	1004	if (!change)
1756	{
1757	return 0;	1005	return 0;
1758	}
1759		1006
1760	/* inform all players on the map */	1007	/* inform all players on the map */
1761	if (change > 0)	1008	if (change > 0)
1762	new_info_map (NDI_BLACK | NDI_UNIQUE, m, "It becomes darker.");	1009	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes darker.");
1763	else	1010	else
1764	new_info_map (NDI_BLACK | NDI_UNIQUE, m, "It becomes brighter.");	1011	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes brighter.");
1765		1012
1766	/* Do extra checking. since m->darkness is a unsigned value,	1013	darkness = clamp (darkness + change, -MAX_DARKNESS, MAX_DARKNESS);
1767	* we need to be extra careful about negative values.
1768	* In general, the checks below are only needed if change
1769	* is not +/-1
1770	*/
1771	if (new_level < 0)
1772	m->darkness = 0;
1773	else if (new_level >= MAX_DARKNESS)
1774	m->darkness = MAX_DARKNESS;
1775	else
1776	m->darkness = new_level;
1777		1014
1778	/* All clients need to get re-updated for the change */	1015	/* All clients need to get re-updated for the change */
1779	update_all_map_los (m);	1016	update_all_map_los (this);
		1017
1780	return 1;	1018	return 1;
1781	}	1019	}
1782		1020
1783	/*	1021	/*
1784	* This function updates various attributes about a specific space	1022	* This function updates various attributes about a specific space
…		…
1787	* through, etc)	1025	* through, etc)
1788	*/	1026	*/
1789	void	1027	void
1790	mapspace::update_ ()	1028	mapspace::update_ ()
1791	{	1029	{
1792	object *tmp, *last = 0;	1030	object *last = 0;
1793	uint8 flags = 0, light = 0, anywhere = 0;	1031	uint8 flags = P_UPTODATE, anywhere = 0;
1794	New_Face *top, *floor, *middle;	1032	sint8 light = 0;
1795	object *top_obj, *floor_obj, *middle_obj;
1796	MoveType move_block = 0, move_slow = 0, move_on = 0, move_off = 0, move_allow = 0;	1033	MoveType move_block = 0, move_slow = 0, move_on = 0, move_off = 0, move_allow = 0;
1797		1034
1798	middle = blank_face;	1035	//object *middle = 0;
1799	top = blank_face;	1036	//object *top = 0;
1800	floor = blank_face;	1037	//object *floor = 0;
		1038	// this seems to generate better code than using locals, above
		1039	object *&top = faces_obj[0] = 0;
		1040	object *&middle = faces_obj[1] = 0;
		1041	object *&floor = faces_obj[2] = 0;
1801		1042
1802	middle_obj = 0;
1803	top_obj = 0;
1804	floor_obj = 0;
1805
1806	for (tmp = bot; tmp; last = tmp, tmp = tmp->above)	1043	for (object *tmp = bot; tmp; last = tmp, tmp = tmp->above)
1807	{	1044	{
1808	/* This could be made additive I guess (two lights better than	1045	// Lights are additive, up to MAX_LIGHT_RADIUS, see los.C)
1809	* one). But if so, it shouldn't be a simple additive - 2
1810	* light bulbs do not illuminate twice as far as once since
1811	* it is a dissapation factor that is cubed.
1812	*/
1813	if (tmp->glow_radius > light)
1814	light = tmp->glow_radius;	1046	light += tmp->glow_radius;
1815		1047
1816	/* This call is needed in order to update objects the player	1048	/* This call is needed in order to update objects the player
1817	* is standing in that have animations (ie, grass, fire, etc).	1049	* is standing in that have animations (ie, grass, fire, etc).
1818	* However, it also causes the look window to be re-drawn	1050	* However, it also causes the look window to be re-drawn
1819	* 3 times each time the player moves, because many of the	1051	* 3 times each time the player moves, because many of the
…		…
1822	* Always put the player down for drawing.	1054	* Always put the player down for drawing.
1823	*/	1055	*/
1824	if (!tmp->invisible)	1056	if (!tmp->invisible)
1825	{	1057	{
1826	if ((tmp->type == PLAYER || QUERY_FLAG (tmp, FLAG_MONSTER)))	1058	if ((tmp->type == PLAYER || QUERY_FLAG (tmp, FLAG_MONSTER)))
1827	{
1828	top = tmp->face;
1829	top_obj = tmp;	1059	top = tmp;
1830	}
1831	else if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))	1060	else if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))
1832	{	1061	{
1833	/* If we got a floor, that means middle and top were below it,	1062	/* If we got a floor, that means middle and top were below it,
1834	* so should not be visible, so we clear them.	1063	* so should not be visible, so we clear them.
1835	*/	1064	*/
1836	middle = blank_face;	1065	middle = 0;
1837	top = blank_face;	1066	top = 0;
1838	floor = tmp->face;
1839	floor_obj = tmp;	1067	floor = tmp;
1840	}	1068	}
1841	/* Flag anywhere have high priority */	1069	/* Flag anywhere have high priority */
1842	else if (QUERY_FLAG (tmp, FLAG_SEE_ANYWHERE))	1070	else if (QUERY_FLAG (tmp, FLAG_SEE_ANYWHERE))
1843	{	1071	{
1844	middle = tmp->face;
1845
1846	middle_obj = tmp;	1072	middle = tmp;
1847	anywhere = 1;	1073	anywhere = 1;
1848	}	1074	}
		1075
1849	/* Find the highest visible face around. If equal	1076	/* Find the highest visible face around. If equal
1850	* visibilities, we still want the one nearer to the	1077	* visibilities, we still want the one nearer to the
1851	* top	1078	* top
1852	*/	1079	*/
1853	else if (middle == blank_face || (tmp->face->visibility > middle->visibility && !anywhere))	1080	else if (!middle || (::faces [tmp->face].visibility > ::faces [middle->face].visibility && !anywhere))
1854	{
1855	middle = tmp->face;
1856	middle_obj = tmp;	1081	middle = tmp;
1857	}
1858	}	1082	}
1859		1083
1860	if (tmp == tmp->above)	1084	if (tmp == tmp->above)
1861	{	1085	{
1862	LOG (llevError, "Error in structure of map\n");	1086	LOG (llevError, "Error in structure of map\n");
…		…
1875	if (tmp->type == SAFE_GROUND) flags |= P_SAFE;	1099	if (tmp->type == SAFE_GROUND) flags |= P_SAFE;
1876	if (QUERY_FLAG (tmp, FLAG_ALIVE)) flags |= P_IS_ALIVE;	1100	if (QUERY_FLAG (tmp, FLAG_ALIVE)) flags |= P_IS_ALIVE;
1877	if (QUERY_FLAG (tmp, FLAG_DAMNED)) flags |= P_NO_CLERIC;	1101	if (QUERY_FLAG (tmp, FLAG_DAMNED)) flags |= P_NO_CLERIC;
1878	}	1102	}
1879		1103
1880	this->light = light;	1104	this->light = min (light, MAX_LIGHT_RADIUS);
1881	this->flags_ = flags;	1105	this->flags_ = flags;
1882	this->move_block = move_block & ~move_allow;	1106	this->move_block = move_block & ~move_allow;
1883	this->move_on = move_on;	1107	this->move_on = move_on;
1884	this->move_off = move_off;	1108	this->move_off = move_off;
1885	this->move_slow = move_slow;	1109	this->move_slow = move_slow;
…		…
1897	* middle face. This should not happen, as we already have the	1121	* middle face. This should not happen, as we already have the
1898	* else statement above so middle should not get set. OTOH, it	1122	* else statement above so middle should not get set. OTOH, it
1899	* may be possible for the faces to match but be different objects.	1123	* may be possible for the faces to match but be different objects.
1900	*/	1124	*/
1901	if (top == middle)	1125	if (top == middle)
1902	middle = blank_face;	1126	middle = 0;
1903		1127
1904	/* There are three posibilities at this point:	1128	/* There are three posibilities at this point:
1905	* 1) top face is set, need middle to be set.	1129	* 1) top face is set, need middle to be set.
1906	* 2) middle is set, need to set top.	1130	* 2) middle is set, need to set top.
1907	* 3) neither middle or top is set - need to set both.	1131	* 3) neither middle or top is set - need to set both.
1908	*/	1132	*/
1909		1133
1910	for (tmp = last; tmp; tmp = tmp->below)	1134	for (object *tmp = last; tmp; tmp = tmp->below)
1911	{	1135	{
1912	/* Once we get to a floor, stop, since we already have a floor object */	1136	/* Once we get to a floor, stop, since we already have a floor object */
1913	if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))	1137	if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))
1914	break;	1138	break;
1915		1139
1916	/* If two top faces are already set, quit processing */	1140	/* If two top faces are already set, quit processing */
1917	if ((top != blank_face) && (middle != blank_face))	1141	if (top && middle)
1918	break;	1142	break;
1919		1143
1920	/* Only show visible faces, unless its the editor - show all */	1144	/* Only show visible faces */
1921	if (!tmp->invisible || editor)	1145	if (!tmp->invisible)
1922	{	1146	{
1923	/* Fill in top if needed */	1147	/* Fill in top if needed */
1924	if (top == blank_face)	1148	if (!top)
1925	{	1149	{
1926	top = tmp->face;
1927	top_obj = tmp;	1150	top = tmp;
1928	if (top == middle)	1151	if (top == middle)
1929	middle = blank_face;	1152	middle = 0;
1930	}	1153	}
1931	else	1154	else
1932	{	1155	{
1933	/* top is already set - we should only get here if	1156	/* top is already set - we should only get here if
1934	* middle is not set	1157	* middle is not set
1935	*	1158	*
1936	* Set the middle face and break out, since there is nothing	1159	* Set the middle face and break out, since there is nothing
1937	* more to fill in. We don't check visiblity here, since	1160	* more to fill in. We don't check visiblity here, since
1938	*	1161	*
1939	*/	1162	*/
1940	if (tmp->face != top)	1163	if (tmp != top)
1941	{	1164	{
1942	middle = tmp->face;
1943	middle_obj = tmp;	1165	middle = tmp;
1944	break;	1166	break;
1945	}	1167	}
1946	}	1168	}
1947	}	1169	}
1948	}	1170	}
1949		1171
1950	if (middle == floor)	1172	if (middle == floor)
1951	middle = blank_face;	1173	middle = 0;
1952		1174
1953	if (top == middle)	1175	if (top == middle)
1954	middle = blank_face;	1176	middle = 0;
1955		1177
1956	faces [0] = top; faces_obj [0] = top != blank_face ? top_obj : 0;	1178	#if 0
1957	faces [1] = middle; faces_obj [1] = middle != blank_face ? middle_obj : 0;	1179	faces_obj [0] = top;
1958	faces [2] = floor; faces_obj [2] = floor != blank_face ? floor_obj : 0;	1180	faces_obj [1] = middle;
		1181	faces_obj [2] = floor;
		1182	#endif
1959	}	1183	}
1960		1184
1961	void	1185	uint64
1962	set_map_reset_time (maptile *map)	1186	mapspace::volume () const
1963	{	1187	{
1964	int timeout;	1188	uint64 vol = 0;
1965		1189
1966	timeout = map->reset_timeout;	1190	for (object *op = top; op && !op->flag [FLAG_NO_PICK]; op = op->below)
1967	if (timeout <= 0)	1191	vol += op->volume ();
1968	timeout = MAP_DEFAULTRESET;
1969	if (timeout >= MAP_MAXRESET)
1970	timeout = MAP_MAXRESET;
1971	map->reset_time = time (0) + timeout;
1972	}
1973		1192
1974	/* this updates the orig_map->tile_map[tile_num] value after loading	1193	return vol;
1975	* the map. It also takes care of linking back the freshly loaded	1194	}
1976	* maps tile_map values if it tiles back to this one. It returns
1977	* the value of orig_map->tile_map[tile_num]. It really only does this
1978	* so that it is easier for calling functions to verify success.
1979	*/
1980		1195
1981	static maptile *	1196	maptile *
1982	load_and_link_tiled_map (maptile *orig_map, int tile_num)	1197	maptile::tile_available (int dir, bool load)
1983	{	1198	{
1984	int dest_tile = (tile_num + 2) % 4;	1199	if (tile_path[dir])
1985	char *path = path_combine_and_normalize (orig_map->path, orig_map->tile_path[tile_num]);	1200	{
		1201	if (tile_map[dir] && (!load || tile_map[dir]->in_memory == MAP_ACTIVE))
		1202	return tile_map[dir];
1986		1203
1987	orig_map->tile_map[tile_num] = ready_map_name (path, 0);	1204	if ((tile_map[dir] = find_async (tile_path[dir], this, load)))
		1205	return tile_map[dir];
		1206	}
1988		1207
1989	/* need to do a strcmp here as the orig_map->path is not a shared string */	1208	return 0;
1990	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))
1991	orig_map->tile_map[tile_num]->tile_map[dest_tile] = orig_map;
1992
1993	return orig_map->tile_map[tile_num];
1994	}	1209	}
1995		1210
1996	/* this returns TRUE if the coordinates (x,y) are out of	1211	/* this returns TRUE if the coordinates (x,y) are out of
1997	* map m. This function also takes into account any	1212	* map m. This function also takes into account any
1998	* tiling considerations, loading adjacant maps as needed.	1213	* tiling considerations, loading adjacant maps as needed.
1999	* This is the function should always be used when it	1214	* This is the function should always be used when it
2000	* necessary to check for valid coordinates.	1215	* necessary to check for valid coordinates.
2001	* This function will recursively call itself for the	1216	* This function will recursively call itself for the
2002	* tiled maps.	1217	* tiled maps.
2003	*
2004	*
2005	*/	1218	*/
2006	int	1219	int
2007	out_of_map (maptile *m, int x, int y)	1220	out_of_map (maptile *m, int x, int y)
2008	{	1221	{
2009	/* If we get passed a null map, this is obviously the	1222	/* If we get passed a null map, this is obviously the
…		…
2013	if (!m)	1226	if (!m)
2014	return 0;	1227	return 0;
2015		1228
2016	if (x < 0)	1229	if (x < 0)
2017	{	1230	{
2018	if (!m->tile_path[3])	1231	if (!m->tile_available (3))
2019	return 1;	1232	return 1;
2020		1233
2021	if (!m->tile_map[3] || m->tile_map[3]->in_memory != MAP_IN_MEMORY)
2022	load_and_link_tiled_map (m, 3);
2023
2024	return (out_of_map (m->tile_map[3], x + m->tile_map[3]->width, y));	1234	return out_of_map (m->tile_map[3], x + m->tile_map[3]->width, y);
2025	}	1235	}
2026		1236
2027	if (x >= m->width)	1237	if (x >= m->width)
2028	{	1238	{
2029	if (!m->tile_path[1])	1239	if (!m->tile_available (1))
2030	return 1;	1240	return 1;
2031		1241
2032	if (!m->tile_map[1] || m->tile_map[1]->in_memory != MAP_IN_MEMORY)
2033	load_and_link_tiled_map (m, 1);
2034
2035	return (out_of_map (m->tile_map[1], x - m->width, y));	1242	return out_of_map (m->tile_map[1], x - m->width, y);
2036	}	1243	}
2037		1244
2038	if (y < 0)	1245	if (y < 0)
2039	{	1246	{
2040	if (!m->tile_path[0])	1247	if (!m->tile_available (0))
2041	return 1;	1248	return 1;
2042		1249
2043	if (!m->tile_map[0] || m->tile_map[0]->in_memory != MAP_IN_MEMORY)
2044	load_and_link_tiled_map (m, 0);
2045
2046	return (out_of_map (m->tile_map[0], x, y + m->tile_map[0]->height));	1250	return out_of_map (m->tile_map[0], x, y + m->tile_map[0]->height);
2047	}	1251	}
2048		1252
2049	if (y >= m->height)	1253	if (y >= m->height)
2050	{	1254	{
2051	if (!m->tile_path[2])	1255	if (!m->tile_available (2))
2052	return 1;	1256	return 1;
2053		1257
2054	if (!m->tile_map[2] || m->tile_map[2]->in_memory != MAP_IN_MEMORY)
2055	load_and_link_tiled_map (m, 2);
2056
2057	return (out_of_map (m->tile_map[2], x, y - m->height));	1258	return out_of_map (m->tile_map[2], x, y - m->height);
2058	}	1259	}
2059		1260
2060	/* Simple case - coordinates are within this local	1261	/* Simple case - coordinates are within this local
2061	* map.	1262	* map.
2062	*/	1263	*/
…		…
2065		1266
2066	/* This is basically the same as out_of_map above, but	1267	/* This is basically the same as out_of_map above, but
2067	* instead we return NULL if no map is valid (coordinates	1268	* instead we return NULL if no map is valid (coordinates
2068	* out of bounds and no tiled map), otherwise it returns	1269	* out of bounds and no tiled map), otherwise it returns
2069	* the map as that the coordinates are really on, and	1270	* the map as that the coordinates are really on, and
2070	* updates x and y to be the localized coordinates.	1271	* updates x and y to be the localised coordinates.
2071	* Using this is more efficient of calling out_of_map	1272	* Using this is more efficient of calling out_of_map
2072	* and then figuring out what the real map is	1273	* and then figuring out what the real map is
2073	*/	1274	*/
2074	maptile *	1275	maptile *
2075	get_map_from_coord (maptile *m, sint16 * x, sint16 * y)	1276	maptile::xy_find (sint16 &x, sint16 &y)
2076	{	1277	{
2077
2078	if (*x < 0)	1278	if (x < 0)
2079	{	1279	{
2080	if (!m->tile_path[3])	1280	if (!tile_available (3))
2081	return 0;	1281	return 0;
2082	if (!m->tile_map[3] || m->tile_map[3]->in_memory != MAP_IN_MEMORY)
2083	load_and_link_tiled_map (m, 3);
2084		1282
2085	*x += m->tile_map[3]->width;	1283	x += tile_map[3]->width;
2086	return (get_map_from_coord (m->tile_map[3], x, y));	1284	return tile_map[3]->xy_find (x, y);
2087	}	1285	}
2088		1286
2089	if (*x >= m->width)	1287	if (x >= width)
2090	{	1288	{
2091	if (!m->tile_path[1])	1289	if (!tile_available (1))
2092	return 0;	1290	return 0;
2093		1291
2094	if (!m->tile_map[1] || m->tile_map[1]->in_memory != MAP_IN_MEMORY)
2095	load_and_link_tiled_map (m, 1);
2096
2097	*x -= m->width;	1292	x -= width;
2098	return (get_map_from_coord (m->tile_map[1], x, y));	1293	return tile_map[1]->xy_find (x, y);
2099	}	1294	}
2100		1295
2101	if (*y < 0)	1296	if (y < 0)
2102	{	1297	{
2103	if (!m->tile_path[0])	1298	if (!tile_available (0))
2104	return 0;	1299	return 0;
2105		1300
2106	if (!m->tile_map[0] || m->tile_map[0]->in_memory != MAP_IN_MEMORY)
2107	load_and_link_tiled_map (m, 0);
2108
2109	*y += m->tile_map[0]->height;	1301	y += tile_map[0]->height;
2110	return (get_map_from_coord (m->tile_map[0], x, y));	1302	return tile_map[0]->xy_find (x, y);
2111	}	1303	}
2112		1304
2113	if (*y >= m->height)	1305	if (y >= height)
2114	{	1306	{
2115	if (!m->tile_path[2])	1307	if (!tile_available (2))
2116	return 0;	1308	return 0;
2117		1309
2118	if (!m->tile_map[2] || m->tile_map[2]->in_memory != MAP_IN_MEMORY)
2119	load_and_link_tiled_map (m, 2);
2120
2121	*y -= m->height;	1310	y -= height;
2122	return (get_map_from_coord (m->tile_map[2], x, y));	1311	return tile_map[2]->xy_find (x, y);
2123	}	1312	}
2124		1313
2125	/* Simple case - coordinates are within this local	1314	/* Simple case - coordinates are within this local
2126	* map.	1315	* map.
2127	*/	1316	*/
2128
2129	return m;	1317	return this;
2130	}	1318	}
2131		1319
2132	/**	1320	/**
2133	* Return whether map2 is adjacent to map1. If so, store the distance from	1321	* Return whether map2 is adjacent to map1. If so, store the distance from
2134	* map1 to map2 in dx/dy.	1322	* map1 to map2 in dx/dy.
2135	*/	1323	*/
2136	static int	1324	int
2137	adjacent_map (const maptile *map1, const maptile *map2, int *dx, int *dy)	1325	adjacent_map (const maptile *map1, const maptile *map2, int *dx, int *dy)
2138	{	1326	{
2139	if (!map1 || !map2)	1327	if (!map1 || !map2)
2140	return 0;	1328	return 0;
2141		1329
		1330	//TODO: this doesn't actually check correctly when intermediate maps are not loaded
		1331	//fix: compare paths instead (this is likely faster, too!)
2142	if (map1 == map2)	1332	if (map1 == map2)
2143	{	1333	{
2144	*dx = 0;	1334	*dx = 0;
2145	*dy = 0;	1335	*dy = 0;
2146
2147	}	1336	}
2148	else if (map1->tile_map[0] == map2)	1337	else if (map1->tile_map[0] == map2)
2149	{ /* up */	1338	{ /* up */
2150	*dx = 0;	1339	*dx = 0;
2151	*dy = -map2->height;	1340	*dy = -map2->height;
…		…
2162	}	1351	}
2163	else if (map1->tile_map[3] == map2)	1352	else if (map1->tile_map[3] == map2)
2164	{ /* left */	1353	{ /* left */
2165	*dx = -map2->width;	1354	*dx = -map2->width;
2166	*dy = 0;	1355	*dy = 0;
2167
2168	}	1356	}
2169	else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[1] == map2)	1357	else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[1] == map2)
2170	{ /* up right */	1358	{ /* up right */
2171	*dx = map1->tile_map[0]->width;	1359	*dx = map1->tile_map[0]->width;
2172	*dy = -map1->tile_map[0]->height;	1360	*dy = -map1->tile_map[0]->height;
…		…
2203	}	1391	}
2204	else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[2] == map2)	1392	else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[2] == map2)
2205	{ /* left down */	1393	{ /* left down */
2206	*dx = -map1->tile_map[3]->width;	1394	*dx = -map1->tile_map[3]->width;
2207	*dy = map1->tile_map[3]->height;	1395	*dy = map1->tile_map[3]->height;
2208
2209	}	1396	}
2210	else	1397	else
2211	{ /* not "adjacent" enough */
2212	return 0;	1398	return 0;
2213	}
2214		1399
2215	return 1;	1400	return 1;
		1401	}
		1402
		1403	maptile *
		1404	maptile::xy_load (sint16 &x, sint16 &y)
		1405	{
		1406	maptile *map = xy_find (x, y);
		1407
		1408	if (map)
		1409	map->load_sync ();
		1410
		1411	return map;
		1412	}
		1413
		1414	maptile *
		1415	get_map_from_coord (maptile *m, sint16 *x, sint16 *y)
		1416	{
		1417	return m->xy_load (*x, *y);
2216	}	1418	}
2217		1419
2218	/* From map.c	1420	/* From map.c
2219	* This is used by get_player to determine where the other	1421	* This is used by get_player to determine where the other
2220	* creature is. get_rangevector takes into account map tiling,	1422	* creature is. get_rangevector takes into account map tiling,
2221	* so you just can not look the the map coordinates and get the	1423	* so you just can not look the the map coordinates and get the
2222	* righte value. distance_x/y are distance away, which	1424	* righte value. distance_x/y are distance away, which
2223	* can be negativbe. direction is the crossfire direction scheme	1425	* can be negative. direction is the crossfire direction scheme
2224	* that the creature should head. part is the part of the	1426	* that the creature should head. part is the part of the
2225	* monster that is closest.	1427	* monster that is closest.
2226	*	1428	*
2227	* get_rangevector looks at op1 and op2, and fills in the	1429	* get_rangevector looks at op1 and op2, and fills in the
2228	* structure for op1 to get to op2.	1430	* structure for op1 to get to op2.
…		…
2233	* be unexpected	1435	* be unexpected
2234	*	1436	*
2235	* currently, the only flag supported (0x1) is don't translate for	1437	* currently, the only flag supported (0x1) is don't translate for
2236	* closest body part of 'op1'	1438	* closest body part of 'op1'
2237	*/	1439	*/
2238
2239	void	1440	void
2240	get_rangevector (object *op1, object *op2, rv_vector * retval, int flags)	1441	get_rangevector (object *op1, object *op2, rv_vector * retval, int flags)
2241	{	1442	{
2242	if (!adjacent_map (op1->map, op2->map, &retval->distance_x, &retval->distance_y))	1443	if (!adjacent_map (op1->map, op2->map, &retval->distance_x, &retval->distance_y))
2243	{	1444	{
2244	/* be conservative and fill in _some_ data */	1445	/* be conservative and fill in _some_ data */
2245	retval->distance = 100000;	1446	retval->distance = 10000;
2246	retval->distance_x = 32767;	1447	retval->distance_x = 10000;
2247	retval->distance_y = 32767;	1448	retval->distance_y = 10000;
2248	retval->direction = 0;	1449	retval->direction = 0;
2249	retval->part = 0;	1450	retval->part = 0;
2250	}	1451	}
2251	else	1452	else
2252	{	1453	{
…		…
2257		1458
2258	best = op1;	1459	best = op1;
2259	/* If this is multipart, find the closest part now */	1460	/* If this is multipart, find the closest part now */
2260	if (!(flags & 0x1) && op1->more)	1461	if (!(flags & 0x1) && op1->more)
2261	{	1462	{
2262	object *tmp;
2263	int best_distance = retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y, tmpi;	1463	int best_distance = retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y, tmpi;
2264		1464
2265	/* we just take the offset of the piece to head to figure	1465	/* we just take the offset of the piece to head to figure
2266	* distance instead of doing all that work above again	1466	* distance instead of doing all that work above again
2267	* since the distance fields we set above are positive in the	1467	* since the distance fields we set above are positive in the
2268	* same axis as is used for multipart objects, the simply arithmetic	1468	* same axis as is used for multipart objects, the simply arithmetic
2269	* below works.	1469	* below works.
2270	*/	1470	*/
2271	for (tmp = op1->more; tmp != NULL; tmp = tmp->more)	1471	for (object *tmp = op1->more; tmp; tmp = tmp->more)
2272	{	1472	{
2273	tmpi = (op1->x - tmp->x + retval->distance_x) * (op1->x - tmp->x + retval->distance_x) +	1473	tmpi = (op1->x - tmp->x + retval->distance_x) * (op1->x - tmp->x + retval->distance_x) +
2274	(op1->y - tmp->y + retval->distance_y) * (op1->y - tmp->y + retval->distance_y);	1474	(op1->y - tmp->y + retval->distance_y) * (op1->y - tmp->y + retval->distance_y);
2275	if (tmpi < best_distance)	1475	if (tmpi < best_distance)
2276	{	1476	{
2277	best_distance = tmpi;	1477	best_distance = tmpi;
2278	best = tmp;	1478	best = tmp;
2279	}	1479	}
2280	}	1480	}
		1481
2281	if (best != op1)	1482	if (best != op1)
2282	{	1483	{
2283	retval->distance_x += op1->x - best->x;	1484	retval->distance_x += op1->x - best->x;
2284	retval->distance_y += op1->y - best->y;	1485	retval->distance_y += op1->y - best->y;
2285	}	1486	}
2286	}	1487	}
		1488
2287	retval->part = best;	1489	retval->part = best;
2288	retval->distance = isqrt (retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y);	1490	retval->distance = upos_max (abs (retval->distance_x), abs (retval->distance_y));
2289	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);	1491	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);
2290	}	1492	}
2291	}	1493	}
2292		1494
2293	/* this is basically the same as get_rangevector above, but instead of	1495	/* this is basically the same as get_rangevector above, but instead of
…		…
2298	* flags has no meaning for this function at this time - I kept it in to	1500	* flags has no meaning for this function at this time - I kept it in to
2299	* be more consistant with the above function and also in case they are needed	1501	* be more consistant with the above function and also in case they are needed
2300	* for something in the future. Also, since no object is pasted, the best	1502	* for something in the future. Also, since no object is pasted, the best
2301	* field of the rv_vector is set to NULL.	1503	* field of the rv_vector is set to NULL.
2302	*/	1504	*/
2303
2304	void	1505	void
2305	get_rangevector_from_mapcoord (const maptile *m, int x, int y, const object *op2, rv_vector * retval, int flags)	1506	get_rangevector_from_mapcoord (const maptile *m, int x, int y, const object *op2, rv_vector *retval, int flags)
2306	{	1507	{
2307	if (!adjacent_map (m, op2->map, &retval->distance_x, &retval->distance_y))	1508	if (!adjacent_map (m, op2->map, &retval->distance_x, &retval->distance_y))
2308	{	1509	{
2309	/* be conservative and fill in _some_ data */	1510	/* be conservative and fill in _some_ data */
2310	retval->distance = 100000;	1511	retval->distance = 100000;
…		…
2316	else	1517	else
2317	{	1518	{
2318	retval->distance_x += op2->x - x;	1519	retval->distance_x += op2->x - x;
2319	retval->distance_y += op2->y - y;	1520	retval->distance_y += op2->y - y;
2320		1521
2321	retval->part = NULL;	1522	retval->part = 0;
2322	retval->distance = isqrt (retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y);	1523	retval->distance = upos_max (abs (retval->distance_x), abs (retval->distance_y));
2323	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);	1524	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);
2324	}	1525	}
2325	}	1526	}
2326		1527
2327	/* Returns true of op1 and op2 are effectively on the same map	1528	/* Returns true of op1 and op2 are effectively on the same map
2328	* (as related to map tiling). Note that this looks for a path from	1529	* (as related to map tiling). Note that this looks for a path from
2329	* op1 to op2, so if the tiled maps are assymetric and op2 has a path	1530	* op1 to op2, so if the tiled maps are asymetric and op2 has a path
2330	* to op1, this will still return false.	1531	* to op1, this will still return false.
2331	* Note we only look one map out to keep the processing simple	1532	* Note we only look one map out to keep the processing simple
2332	* and efficient. This could probably be a macro.	1533	* and efficient. This could probably be a macro.
2333	* MSW 2001-08-05	1534	* MSW 2001-08-05
2334	*/	1535	*/
…		…
2341	}	1542	}
2342		1543
2343	object *	1544	object *
2344	maptile::insert (object *op, int x, int y, object *originator, int flags)	1545	maptile::insert (object *op, int x, int y, object *originator, int flags)
2345	{	1546	{
2346	if (!op->flag [FLAG_REMOVED])
2347	op->remove ();
2348
2349	return insert_ob_in_map_at (op, this, originator, flags, x, y);	1547	return insert_ob_in_map_at (op, this, originator, flags, x, y);
2350	}	1548	}
2351		1549
		1550	region *
		1551	maptile::region (int x, int y) const
		1552	{
		1553	if (regions
		1554	&& regionmap
		1555	&& !OUT_OF_REAL_MAP (this, x, y))
		1556	if (struct region *reg = regionmap [regions [y * width + x]])
		1557	return reg;
		1558
		1559	if (default_region)
		1560	return default_region;
		1561
		1562	return ::region::default_region ();
		1563	}
		1564
		1565	/* picks a random object from a style map.
		1566	*/
		1567	object *
		1568	maptile::pick_random_object (rand_gen &gen) const
		1569	{
		1570	/* while returning a null object will result in a crash, that
		1571	* is actually preferable to an infinite loop. That is because
		1572	* most servers will automatically restart in case of crash.
		1573	* Change the logic on getting the random space - shouldn't make
		1574	* any difference, but this seems clearer to me.
		1575	*/
		1576	for (int i = 1000; --i;)
		1577	{
		1578	object *pick = at (gen (width), gen (height)).bot;
		1579
		1580	// do not prefer big monsters just because they are big.
		1581	if (pick && pick->is_head ())
		1582	return pick->head_ ();
		1583	}
		1584
		1585	// instead of crashing in the unlikely(?) case, try to return *something*
		1586	return archetype::find ("bug");
		1587	}
		1588
		1589	void
		1590	maptile::play_sound (faceidx sound, int x, int y) const
		1591	{
		1592	if (!sound)
		1593	return;
		1594
		1595	for_all_players_on_map (pl, this)
		1596	if (client *ns = pl->ns)
		1597	{
		1598	int dx = x - pl->ob->x;
		1599	int dy = y - pl->ob->y;
		1600
		1601	int distance = idistance (dx, dy);
		1602
		1603	if (distance <= MAX_SOUND_DISTANCE)
		1604	ns->play_sound (sound, dx, dy);
		1605	}
		1606	}
		1607
		1608	void
		1609	maptile::say_msg (const char *msg, int x, int y) const
		1610	{
		1611	for_all_players (pl)
		1612	if (client *ns = pl->ns)
		1613	{
		1614	int dx = x - pl->ob->x;
		1615	int dy = y - pl->ob->y;
		1616
		1617	int distance = idistance (dx, dy);
		1618
		1619	if (distance <= MAX_SOUND_DISTANCE)
		1620	ns->send_msg (NDI_GREY | NDI_DEF, SAY_CHANNEL, msg);
		1621	}
		1622	}
		1623
		1624	static void
		1625	split_to_tiles (dynbuf &buf, maptile *m, int x0, int y0, int x1, int y1, int dx, int dy)
		1626	{
		1627	// clip to map to the left
		1628	if (x0 < 0)
		1629	{
		1630	if (maptile *tile = m->tile_available (TILE_LEFT, 1))
		1631	split_to_tiles (buf, tile, x0 + tile->width, y0, min (x1 + tile->width, tile->width), y1, dx - tile->width, dy);
		1632
		1633	if (x1 < 0) // entirely to the left
		1634	return;
		1635
		1636	x0 = 0;
		1637	}
		1638
		1639	// clip to map to the right
		1640	if (x1 > m->width)
		1641	{
		1642	if (maptile *tile = m->tile_available (TILE_RIGHT, 1))
		1643	split_to_tiles (buf, tile, max (x0 - m->width, 0), y0, x1 - m->width, y1, dx + m->width, dy);
		1644
		1645	if (x0 > m->width) // entirely to the right
		1646	return;
		1647
		1648	x1 = m->width;
		1649	}
		1650
		1651	// clip to map above
		1652	if (y0 < 0)
		1653	{
		1654	if (maptile *tile = m->tile_available (TILE_UP, 1))
		1655	split_to_tiles (buf, tile, x0, y0 + tile->height, x1, min (y1 + tile->height, tile->height), dx, dy - tile->height);
		1656
		1657	if (y1 < 0) // entirely above
		1658	return;
		1659
		1660	y0 = 0;
		1661	}
		1662
		1663	// clip to map below
		1664	if (y1 > m->height)
		1665	{
		1666	if (maptile *tile = m->tile_available (TILE_DOWN, 1))
		1667	split_to_tiles (buf, tile, x0, max (y0 - m->height, 0), x1, y1 - m->height, dx, dy + m->height);
		1668
		1669	if (y0 > m->height) // entirely below
		1670	return;
		1671
		1672	y1 = m->height;
		1673	}
		1674
		1675	// if we get here, the rect is within the current map
		1676	maprect *r = (maprect *)buf.alloc (sizeof (maprect));
		1677
		1678	r->m = m;
		1679	r->x0 = x0;
		1680	r->y0 = y0;
		1681	r->x1 = x1;
		1682	r->y1 = y1;
		1683	r->dx = dx;
		1684	r->dy = dy;
		1685	}
		1686
		1687	maprect *
		1688	maptile::split_to_tiles (int x0, int y0, int x1, int y1)
		1689	{
		1690	static dynbuf buf (sizeof (maprect) * 8, sizeof (maprect) * 8);
		1691	buf.clear ();
		1692
		1693	::split_to_tiles (buf, this, x0, y0, x1, y1, 0, 0);
		1694
		1695	// add end marker
		1696	maprect *r = (maprect *)buf.alloc (sizeof (maprect));
		1697	r->m = 0;
		1698
		1699	return (maprect *)buf.linearise ();
		1700	}
		1701

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