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Comparing deliantra/server/common/map.C (file contents):
Revision 1.18 by root, Thu Aug 31 17:54:14 2006 UTC vs.
Revision 1.142 by root, Sun May 18 17:52:53 2008 UTC

1	/*	1	/*
2	* static char *rcsid_map_c =	2	* This file is part of Deliantra, the Roguelike Realtime MMORPG.
3	* "$Id: map.C,v 1.18 2006/08/31 17:54:14 root Exp $";	3	*
4	*/	4	* Copyright (©) 2005,2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
5
6	/*
7	CrossFire, A Multiplayer game for X-windows
8
9	Copyright (C) 2001-2003 Mark Wedel & Crossfire Development Team	5	* Copyright (©) 2001-2003,2007 Mark Wedel & Crossfire Development Team
10	Copyright (C) 1992 Frank Tore Johansen	6	* Copyright (©) 1992,2007 Frank Tore Johansen
11		7	*
12	This program is free software; you can redistribute it and/or modify	8	* Deliantra is free software: you can redistribute it and/or modify
13	it under the terms of the GNU General Public License as published by	9	* it under the terms of the GNU General Public License as published by
14	the Free Software Foundation; either version 2 of the License, or	10	* the Free Software Foundation, either version 3 of the License, or
15	(at your option) any later version.	11	* (at your option) any later version.
16		12	*
17	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,
18	but WITHOUT ANY WARRANTY; without even the implied warranty of	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
19	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20	GNU General Public License for more details.	16	* GNU General Public License for more details.
21		17	*
22	You should have received a copy of the GNU General Public License	18	* You should have received a copy of the GNU General Public License
23	along with this program; if not, write to the Free Software	19	* along with this program. If not, see <http://www.gnu.org/licenses/>.
24	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	20	*
25		21	* The authors can be reached via e-mail to <support@deliantra.net>
26	The authors can be reached via e-mail at crossfire-devel@real-time.com
27	*/	22	*/
28		23
29
30	#include <global.h>
31	#include <funcpoint.h>
32
33	#include <loader.h>
34	#ifndef WIN32 /* ---win32 exclude header */
35	#include <unistd.h>	24	#include <unistd.h>
36	#endif /* win32 */	25
		26	#include "global.h"
		27
		28	#include "loader.h"
37		29
38	#include "path.h"	30	#include "path.h"
39
40
41	extern int nrofallocobjects,nroffreeobjects;
42
43	/*
44	* Returns the mapstruct which has a name matching the given argument.
45	* return NULL if no match is found.
46	*/
47
48	mapstruct *has_been_loaded (const char *name) {
49	mapstruct *map;
50
51	if (!name || !*name)
52	return 0;
53	for (map = first_map; map; map = map->next)
54	if (!strcmp (name, map->path))
55	break;
56	return (map);
57	}
58
59	/*
60	* This makes a path absolute outside the world of Crossfire.
61	* In other words, it prepends LIBDIR/MAPDIR/ to the given path
62	* and returns the pointer to a static array containing the result.
63	* it really should be called create_mapname
64	*/
65
66	const char *create_pathname (const char *name) {
67	static char buf[MAX_BUF];
68
69	/* Why? having extra / doesn't confuse unix anyplace? Dependancies
70	* someplace else in the code? msw 2-17-97
71	*/
72	if (*name == '/')
73	sprintf (buf, "%s/%s%s", settings.datadir, settings.mapdir, name);
74	else
75	sprintf (buf, "%s/%s/%s", settings.datadir, settings.mapdir, name);
76	return (buf);
77	}
78
79	/*
80	* same as create_pathname, but for the overlay maps.
81	*/
82
83	const char *create_overlay_pathname (const char *name) {
84	static char buf[MAX_BUF];
85
86	/* Why? having extra / doesn't confuse unix anyplace? Dependancies
87	* someplace else in the code? msw 2-17-97
88	*/
89	if (*name == '/')
90	sprintf (buf, "%s/%s%s", settings.localdir, settings.mapdir, name);
91	else
92	sprintf (buf, "%s/%s/%s", settings.localdir, settings.mapdir, name);
93	return (buf);
94	}
95
96	/*
97	* same as create_pathname, but for the template maps.
98	*/
99
100	const char *create_template_pathname (const char *name) {
101	static char buf[MAX_BUF];
102
103	/* Why? having extra / doesn't confuse unix anyplace? Dependancies
104	* someplace else in the code? msw 2-17-97
105	*/
106	if (*name == '/')
107	sprintf (buf, "%s/%s%s", settings.localdir, settings.templatedir, name);
108	else
109	sprintf (buf, "%s/%s/%s", settings.localdir, settings.templatedir, name);
110	return (buf);
111	}
112
113	/*
114	* This makes absolute path to the itemfile where unique objects
115	* will be saved. Converts '/' to '@'. I think it's essier maintain
116	* files than full directory structure, but if this is problem it can
117	* be changed.
118	*/
119	static const char *create_items_path (const char *s) {
120	static char buf[MAX_BUF];
121	char *t;
122
123	if (*s == '/')
124	s++;
125
126	sprintf (buf, "%s/%s/", settings.localdir, settings.uniquedir);
127
128	for (t=buf+strlen(buf); *s; s++,t++)
129	if (*s == '/')
130	*t = '@';
131	else
132	*t = *s;
133	*t = 0;
134	return (buf);
135	}
136
137
138	/*
139	* This function checks if a file with the given path exists.
140	* -1 is returned if it fails, otherwise the mode of the file
141	* is returned.
142	* It tries out all the compression suffixes listed in the uncomp[] array.
143	*
144	* If prepend_dir is set, then we call create_pathname (which prepends
145	* libdir & mapdir). Otherwise, we assume the name given is fully
146	* complete.
147	* Only the editor actually cares about the writablity of this -
148	* the rest of the code only cares that the file is readable.
149	* when the editor goes away, the call to stat should probably be
150	* replaced by an access instead (similar to the windows one, but
151	* that seems to be missing the prepend_dir processing
152	*/
153
154	int check_path (const char *name, int prepend_dir)
155	{
156	char buf[MAX_BUF];
157	#ifndef WIN32
158	char *endbuf;
159	struct stat statbuf;
160	int mode = 0, i;
161	#endif
162
163	if (prepend_dir)
164	strcpy (buf, create_pathname(name));
165	else
166	strcpy(buf, name);
167	#ifdef WIN32 /* ***win32: check this sucker in windows style. */
168	return(_access(buf,0));
169	#else
170
171	/* old method (strchr(buf, '\0')) seemd very odd to me -
172	* this method should be equivalant and is clearer.
173	* Can not use strcat because we need to cycle through
174	* all the names.
175	*/
176	endbuf = buf + strlen(buf);
177
178	if (stat (buf, &statbuf))
179	return -1;
180	if (!S_ISREG (statbuf.st_mode))
181	return (-1);
182
183	if (((statbuf.st_mode & S_IRGRP) && getegid() == statbuf.st_gid) ||
184	((statbuf.st_mode & S_IRUSR) && geteuid() == statbuf.st_uid) ||
185	(statbuf.st_mode & S_IROTH))
186	mode |= 4;
187
188	if ((statbuf.st_mode & S_IWGRP && getegid() == statbuf.st_gid) ||
189	(statbuf.st_mode & S_IWUSR && geteuid() == statbuf.st_uid) ||
190	(statbuf.st_mode & S_IWOTH))
191	mode |= 2;
192
193	return (mode);
194	#endif
195	}
196
197	/*
198	* Prints out debug-information about a map.
199	* Dumping these at llevError doesn't seem right, but is
200	* necessary to make sure the information is in fact logged.
201	*/
202
203	void dump_map(const mapstruct *m) {
204	LOG(llevError,"Map %s status: %d.\n",m->path,m->in_memory);
205	LOG(llevError,"Size: %dx%d Start: %d,%d\n",
206	MAP_WIDTH(m), MAP_HEIGHT(m),
207	MAP_ENTER_X(m), MAP_ENTER_Y(m));
208
209	if(m->msg!=NULL)
210	LOG(llevError,"Message:\n%s",m->msg);
211
212	if(m->maplore!=NULL)
213	LOG(llevError,"Lore:\n%s",m->maplore);
214
215	if(m->tmpname!=NULL)
216	LOG(llevError,"Tmpname: %s\n",m->tmpname);
217
218	LOG(llevError,"Difficulty: %d\n",m->difficulty);
219	LOG(llevError,"Darkness: %d\n",m->darkness);
220	}
221
222	/*
223	* Prints out debug-information about all maps.
224	* This basically just goes through all the maps and calls
225	* dump_map on each one.
226	*/
227
228	void dump_all_maps(void) {
229	mapstruct *m;
230	for(m=first_map;m!=NULL;m=m->next) {
231	dump_map(m);
232	}
233	}
234		31
235	/* This rolls up wall, blocks_magic, blocks_view, etc, all into	32	/* This rolls up wall, blocks_magic, blocks_view, etc, all into
236	* one function that just returns a P_.. value (see map.h)	33	* one function that just returns a P_.. value (see map.h)
237	* it will also do map translation for tiled maps, returning	34	* it will also do map translation for tiled maps, returning
238	* new values into newmap, nx, and ny. Any and all of those	35	* new values into newmap, nx, and ny. Any and all of those
…		…
240	* by a P_NEW_MAP value, another call to get_map_from_coord	37	* by a P_NEW_MAP value, another call to get_map_from_coord
241	* is needed. The case of not passing values is if we're just	38	* is needed. The case of not passing values is if we're just
242	* checking for the existence of something on those spaces, but	39	* checking for the existence of something on those spaces, but
243	* don't expect to insert/remove anything from those spaces.	40	* don't expect to insert/remove anything from those spaces.
244	*/	41	*/
		42	int
245	int get_map_flags(mapstruct *oldmap, mapstruct **newmap, sint16 x, sint16 y, sint16 *nx, sint16 *ny)	43	get_map_flags (maptile *oldmap, maptile **newmap, sint16 x, sint16 y, sint16 *nx, sint16 *ny)
246	{	44	{
247	sint16 newx, newy;
248	int retval=0;
249	mapstruct *mp;
250
251	if (out_of_map(oldmap, x, y)) return P_OUT_OF_MAP;
252	newx = x;	45	sint16 newx = x;
253	newy = y;	46	sint16 newy = y;
		47
254	mp = get_map_from_coord(oldmap, &newx, &newy);	48	maptile *mp = get_map_from_coord (oldmap, &newx, &newy);
255	if (mp != oldmap)	49
256	retval |= P_NEW_MAP;	50	if (!mp)
		51	return P_OUT_OF_MAP;
		52
257	if (newmap) *newmap = mp;	53	if (newmap) *newmap = mp;
258	if (nx) *nx = newx;	54	if (nx) *nx = newx;
259	if (ny) *ny = newy;	55	if (ny) *ny = newy;
260	retval |= mp->spaces[newx + mp->width * newy].flags;
261		56
262	if (retval & P_SAFE)	57	return mp->at (newx, newy).flags () | (mp != oldmap ? P_NEW_MAP : 0);
263	retval |= P_NO_MAGIC | P_NO_CLERIC; // P_SAFE does imply these
264
265	return retval;
266	}	58	}
267
268		59
269	/*	60	/*
270	* Returns true if the given coordinate is blocked except by the	61	* Returns true if the given coordinate is blocked except by the
271	* object passed is not blocking. This is used with	62	* object passed is not blocking. This is used with
272	* multipart monsters - if we want to see if a 2x2 monster	63	* multipart monsters - if we want to see if a 2x2 monster
…		…
276	* monster.	67	* monster.
277	* m, x, y are the target map/coordinates - needed for map tiling.	68	* m, x, y are the target map/coordinates - needed for map tiling.
278	* the coordinates & map passed in should have been updated for tiling	69	* the coordinates & map passed in should have been updated for tiling
279	* by the caller.	70	* by the caller.
280	*/	71	*/
281		72	int
282	int blocked_link(object *ob, mapstruct *m, int sx, int sy) {	73	blocked_link (object *ob, maptile *m, int sx, int sy)
		74	{
283	object *tmp;	75	object *tmp;
284	int mflags, blocked;	76	int mflags, blocked;
285		77
286	/* Make sure the coordinates are valid - they should be, as caller should	78	/* Make sure the coordinates are valid - they should be, as caller should
287	* have already checked this.	79	* have already checked this.
288	*/	80	*/
289	if (OUT_OF_REAL_MAP(m, sx, sy)) {	81	if (OUT_OF_REAL_MAP (m, sx, sy))
		82	{
290	LOG(llevError,"blocked_link: Passed map, x, y coordinates outside of map\n");	83	LOG (llevError, "blocked_link: Passed map, x, y coordinates outside of map\n");
291	return 1;	84	return 1;
292	}	85	}
293		86
294	/* Save some cycles - instead of calling get_map_flags(), just get the value	87	/* Save some cycles - instead of calling get_map_flags(), just get the value
295	* directly.	88	* directly.
296	*/	89	*/
297	mflags = m->spaces[sx + m->width * sy].flags;	90	mflags = m->at (sx, sy).flags ();
298		91
299	blocked = GET_MAP_MOVE_BLOCK(m, sx, sy);	92	blocked = GET_MAP_MOVE_BLOCK (m, sx, sy);
300		93
301	/* If space is currently not blocked by anything, no need to	94	/* If space is currently not blocked by anything, no need to
302	* go further. Not true for players - all sorts of special	95	* go further. Not true for players - all sorts of special
303	* things we need to do for players.	96	* things we need to do for players.
304	*/	97	*/
305	if (ob->type != PLAYER && ! (mflags & P_IS_ALIVE) && (blocked==0)) return 0;	98	if (ob->type != PLAYER && !(mflags & P_IS_ALIVE) && (blocked == 0))
		99	return 0;
306		100
307	/* if there isn't anytyhing alive on this space, and this space isn't	101	/* if there isn't anytyhing alive on this space, and this space isn't
308	* otherwise blocked, we can return now. Only if there is a living	102	* otherwise blocked, we can return now. Only if there is a living
309	* creature do we need to investigate if it is part of this creature	103	* creature do we need to investigate if it is part of this creature
310	* or another. Likewise, only if something is blocking us do we	104	* or another. Likewise, only if something is blocking us do we
311	* need to investigate if there is a special circumstance that would	105	* need to investigate if there is a special circumstance that would
312	* let the player through (inventory checkers for example)	106	* let the player through (inventory checkers for example)
313	*/	107	*/
314	if (!(mflags & P_IS_ALIVE) && !OB_TYPE_MOVE_BLOCK(ob, blocked)) return 0;	108	if (!(mflags & P_IS_ALIVE) && !OB_TYPE_MOVE_BLOCK (ob, blocked))
		109	return 0;
315		110
316	if(ob->head != NULL)	111	ob = ob->head_ ();
317	ob=ob->head;
318		112
319	/* We basically go through the stack of objects, and if there is	113	/* We basically go through the stack of objects, and if there is
320	* some other object that has NO_PASS or FLAG_ALIVE set, return	114	* some other object that has NO_PASS or FLAG_ALIVE set, return
321	* true. If we get through the entire stack, that must mean	115	* true. If we get through the entire stack, that must mean
322	* ob is blocking it, so return 0.	116	* ob is blocking it, so return 0.
323	*/	117	*/
324	for(tmp = GET_MAP_OB(m,sx,sy); tmp!= NULL; tmp = tmp->above) {	118	for (tmp = GET_MAP_OB (m, sx, sy); tmp; tmp = tmp->above)
		119	{
325		120
326	/* This must be before the checks below. Code for inventory checkers. */	121	/* This must be before the checks below. Code for inventory checkers. */
327	if (tmp->type==CHECK_INV && OB_MOVE_BLOCK(ob, tmp)) {	122	if (tmp->type == CHECK_INV && OB_MOVE_BLOCK (ob, tmp))
		123	{
328	/* If last_sp is set, the player/monster needs an object,	124	/* If last_sp is set, the player/monster needs an object,
329	* so we check for it. If they don't have it, they can't	125	* so we check for it. If they don't have it, they can't
330	* pass through this space.	126	* pass through this space.
331	*/	127	*/
332	if (tmp->last_sp) {	128	if (tmp->last_sp)
		129	{
333	if (check_inv_recursive(ob,tmp)==NULL)	130	if (check_inv_recursive (ob, tmp) == NULL)
334	return 1;	131	return 1;
335	else	132	else
336	continue;	133	continue;
337	} else {
338	/* In this case, the player must not have the object -
339	* if they do, they can't pass through.
340	*/
341	if (check_inv_recursive(ob,tmp)!=NULL) /* player has object */
342	return 1;
343	else
344	continue;
345	}	134	}
346	} /* if check_inv */
347	else {	135	else
		136	{
		137	/* In this case, the player must not have the object -
		138	* if they do, they can't pass through.
		139	*/
		140	if (check_inv_recursive (ob, tmp) != NULL) /* player has object */
		141	return 1;
		142	else
		143	continue;
		144	}
		145	} /* if check_inv */
		146	else
		147	{
348	/* Broke apart a big nasty if into several here to make	148	/* Broke apart a big nasty if into several here to make
349	* this more readable. first check - if the space blocks	149	* this more readable. first check - if the space blocks
350	* movement, can't move here.	150	* movement, can't move here.
351	* second - if a monster, can't move there, unles it is a	151	* second - if a monster, can't move there, unless it is a
352	* hidden dm	152	* hidden dm
353	*/	153	*/
354	if (OB_MOVE_BLOCK(ob, tmp)) return 1;	154	if (OB_MOVE_BLOCK (ob, tmp))
355	if (QUERY_FLAG(tmp,FLAG_ALIVE) && tmp->head != ob && tmp != ob &&
356	tmp->type != DOOR && !(QUERY_FLAG(tmp,FLAG_WIZ) && tmp->contr->hidden))
357	return 1;	155	return 1;
		156
		157	if (tmp->flag [FLAG_ALIVE]
		158	&& tmp->head_ () != ob
		159	&& tmp != ob
		160	&& tmp->type != DOOR
		161	&& !(tmp->flag [FLAG_WIZ] && tmp->contr->hidden))
		162	return 1;
358	}	163	}
359		164
360	}	165	}
361	return 0;	166	return 0;
362	}	167	}
363
364		168
365	/*	169	/*
366	* Returns true if the given object can't fit in the given spot.	170	* Returns qthe blocking object if the given object can't fit in the given
367	* This is meant for multi space objects - for single space objecs,	171	* spot. This is meant for multi space objects - for single space objecs,
368	* just calling get_map_blocked and checking that against movement type	172	* just calling get_map_blocked and checking that against movement type
369	* of object. This function goes through all the parts of the	173	* of object. This function goes through all the parts of the multipart
370	* multipart object and makes sure they can be inserted.	174	* object and makes sure they can be inserted.
371	*	175	*
372	* While this doesn't call out of map, the get_map_flags does.	176	* While this doesn't call out of map, the get_map_flags does.
373	*	177	*
374	* This function has been used to deprecate arch_out_of_map -	178	* This function has been used to deprecate arch_out_of_map -
375	* this function also does that check, and since in most cases,	179	* this function also does that check, and since in most cases,
…		…
386	*	190	*
387	* Note this used to be arch_blocked, but with new movement	191	* Note this used to be arch_blocked, but with new movement
388	* code, we need to have actual object to check its move_type	192	* code, we need to have actual object to check its move_type
389	* against the move_block values.	193	* against the move_block values.
390	*/	194	*/
391		195	bool
392	int ob_blocked(const object *ob,mapstruct *m,sint16 x,sint16 y) {	196	object::blocked (maptile *m, int x, int y) const
393	archetype *tmp;	197	{
394	int flag;	198	for (archetype *tmp = arch; tmp; tmp = (archetype *)tmp->more)
395	mapstruct *m1;
396	sint16 sx, sy;
397
398	if(ob==NULL) {
399	flag= get_map_flags(m,&m1, x,y, &sx, &sy);
400	if (flag & P_OUT_OF_MAP) return P_OUT_OF_MAP;
401
402	/* don't have object, so don't know what types would block */
403	return(GET_MAP_MOVE_BLOCK(m1, sx, sy));
404	}	199	{
		200	mapxy pos (m, x + tmp->x, y + tmp->y);
405		201
406	for(tmp=ob->arch; tmp!=NULL;tmp=tmp->more) {	202	if (!pos.normalise ())
407	flag = get_map_flags(m, &m1, x+tmp->clone.x,y+tmp->clone.y, &sx, &sy);	203	return 1;
408		204
409	if (flag & P_OUT_OF_MAP) return P_OUT_OF_MAP;	205	mapspace &ms = *pos;
410	if (flag & P_IS_ALIVE) return P_IS_ALIVE;
411		206
412	/* find_first_free_spot() calls this function. However, often	207	if (ms.flags () & P_IS_ALIVE)
413	* ob doesn't have any move type (when used to place exits)	208	return 1;
		209
		210	/* However, often ob doesn't have any move type
		211	* (signifying non-moving objects)
414	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.	212	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.
415	*/	213	*/
		214	if (!move_type && ms.move_block != MOVE_ALL)
		215	continue;
416		216
417	if (ob->move_type == 0 && GET_MAP_MOVE_BLOCK(m1, sx, sy) != MOVE_ALL) continue;
418
419	/* Note it is intentional that we check ob - the movement type of the	217	/* Note it is intentional that we check ob - the movement type of the
420	* head of the object should correspond for the entire object.	218	* head of the object should correspond for the entire object.
421	*/	219	*/
422	if (OB_TYPE_MOVE_BLOCK(ob, GET_MAP_MOVE_BLOCK(m1, sx, sy)))	220	if (ms.blocks (move_type))
423	return AB_NO_PASS;	221	return 1;
424
425	}	222	}
		223
426	return 0;	224	return 0;
427	}	225	}
428		226
429	/* When the map is loaded, load_object does not actually insert objects	227	/* When the map is loaded, load_object does not actually insert objects
430	* into inventory, but just links them. What this does is go through	228	* into inventory, but just links them. What this does is go through
431	* and insert them properly.	229	* and insert them properly.
432	* The object 'container' is the object that contains the inventory.	230	* The object 'container' is the object that contains the inventory.
433	* This is needed so that we can update the containers weight.	231	* This is needed so that we can update the containers weight.
434	*/	232	*/
435		233	void
436	void fix_container(object *container)	234	fix_container (object *container)
437	{	235	{
438	object *tmp=container->inv, *next;	236	object *tmp = container->inv, *next;
439		237
440	container->inv=NULL;	238	container->inv = 0;
441	while (tmp!=NULL) {	239	while (tmp)
		240	{
442	next = tmp->below;	241	next = tmp->below;
443	if (tmp->inv)	242	if (tmp->inv)
444	fix_container(tmp);	243	fix_container (tmp);
		244
445	(void) insert_ob_in_ob(tmp,container);	245	insert_ob_in_ob (tmp, container);
446	tmp = next;	246	tmp = next;
447	}	247	}
		248
448	/* sum_weight will go through and calculate what all the containers are	249	// go through and calculate what all the containers are carrying.
449	* carrying.	250	//TODO: remove
450	*/	251	container->update_weight ();
451	sum_weight(container);	252	}
		253
		254	void
		255	maptile::set_object_flag (int flag, int value)
		256	{
		257	if (!spaces)
		258	return;
		259
		260	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		261	for (object *tmp = ms->bot; tmp; tmp = tmp->above)
		262	tmp->flag [flag] = value;
452	}	263	}
453		264
454	/* link_multipart_objects go through all the objects on the map looking	265	/* link_multipart_objects go through all the objects on the map looking
455	* for objects whose arch says they are multipart yet according to the	266	* for objects whose arch says they are multipart yet according to the
456	* info we have, they only have the head (as would be expected when	267	* info we have, they only have the head (as would be expected when
457	* they are saved). We do have to look for the old maps that did save	268	* they are saved).
458	* the more sections and not re-add sections for them.
459	*/	269	*/
460		270	void
461	static void link_multipart_objects(mapstruct *m)	271	maptile::link_multipart_objects ()
462	{	272	{
463	int x,y;	273	if (!spaces)
464	object *tmp, *op, *last, *above;	274	return;
465	archetype *at;
466		275
467	for(x=0;x<MAP_WIDTH(m);x++)	276	for (mapspace *ms = spaces + size (); ms-- > spaces; )
468	for(y=0;y<MAP_HEIGHT(m);y++)	277	{
469	for(tmp=get_map_ob(m,x,y);tmp!=NULL;tmp=above) {	278	object *op = ms->bot;
470	above=tmp->above;	279	while (op)
471		280	{
472	/* already multipart - don't do anything more */	281	/* already multipart - don't do anything more */
473	if (tmp->head || tmp->more) continue;	282	if (op->head_ () == op && !op->more && op->arch->more)
474
475	/* If there is nothing more to this object, this for loop
476	* won't do anything.
477	*/
478	for (at = tmp->arch->more, last=tmp; at != NULL; at=at->more, last=op) {
479	op = arch_to_object(at);
480
481	/* update x,y coordinates */
482	op->x += tmp->x;
483	op->y += tmp->y;
484	op->head = tmp;
485	op->map = m;
486	last->more = op;
487	if (tmp->name != op->name) {
488	if (op->name) free_string(op->name);
489	op->name = add_string(tmp->name);
490	}
491	if (tmp->title != op->title) {
492	if (op->title) free_string(op->title);
493	op->title = add_string(tmp->title);
494	}
495	/* we could link all the parts onto tmp, and then just
496	* call insert_ob_in_map once, but the effect is the same,
497	* as insert_ob_in_map will call itself with each part, and
498	* the coding is simpler to just to it here with each part.
499	*/
500	insert_ob_in_map(op, op->map, tmp,INS_NO_MERGE|INS_ABOVE_FLOOR_ONLY|INS_NO_WALK_ON);
501	} /* for at = tmp->arch->more */
502	} /* for objects on this space */
503	}
504
505		283	{
		284	op->remove ();
		285	op->expand_tail ();
		286
		287	// FIXME: INS_ON_TOP is just a workaround for the pentagram vs.
		288	// multi-tile monster bug, where INS_ABOVE_FLOOR_ONLY put the monsters
		289	// below the pentagrams... hopefully INS_ON_TOP doesn't break anything
		290	insert (op, op->x, op->y, 0, INS_NO_MERGE | INS_ON_TOP | INS_NO_WALK_ON);
		291
		292	op = ms->bot; // we are mutating the mapspace too much with INS_ON_TOP
		293	// so we have to reset the iteration through the mapspace
		294	}
		295	else
		296	op = op->above;
		297	}
		298	}
		299	}
506		300
507	/*	301	/*
508	* Loads (ands parses) the objects into a given map from the specified	302	* Loads (ands parses) the objects into a given map from the specified
509	* file pointer.	303	* file pointer.
510	* mapflags is the same as we get with load_original_map
511	*/	304	*/
		305	bool
		306	maptile::_load_objects (object_thawer &f)
		307	{
		308	for (;;)
		309	{
		310	coroapi::cede_to_tick (); // cede once in a while
512		311
513	void load_objects (mapstruct *m, object_thawer &fp, int mapflags) {	312	switch (f.kw)
514	int i,j,bufstate=LO_NEWFILE;
515	int unique;
516	object *op, *prev=NULL,*last_more=NULL, *otmp;
517
518	op=get_object();
519	op->map = m; /* To handle buttons correctly */
520
521	while((i = load_object (fp, op, bufstate, mapflags))) {
522	/* Since the loading of the map header does not load an object
523	* anymore, we need to pass LO_NEWFILE for the first object loaded,
524	* and then switch to LO_REPEAT for faster loading.
525	*/	313	{
526	bufstate = LO_REPEAT;	314	case KW_arch:
		315	if (object *op = object::read (f, this))
		316	{
		317	// TODO: why?
		318	if (op->inv)
		319	op->update_weight ();
527		320
528	/* if the archetype for the object is null, means that we	321	if (IN_RANGE_EXC (op->x, 0, width) && IN_RANGE_EXC (op->y, 0, height))
529	* got an invalid object. Don't do anything with it - the game	322	{
530	* or editor will not be able to do anything with it either.	323	// we insert manually because
531	*/	324	// a) its way faster
532	if (op->arch==NULL) {	325	// b) we remove manually, too, and there are good reasons for that
533	LOG(llevDebug,"Discarding object without arch: %s\n", op->name?(const char *)op->name:"(null)");	326	// c) its correct
		327	mapspace &ms = at (op->x, op->y);
		328
		329	op->flag [FLAG_REMOVED] = false;
		330
		331	op->above = 0;
		332	op->below = ms.top;
		333
		334	if (ms.top)
		335	ms.top->above = op;
		336	else
		337	ms.bot = op;
		338
		339	ms.top = op;
		340	ms.flags_ = 0;
		341	}
		342	else
		343	{
		344	f.parse_warn (format ("object %s out of range", op->debug_desc ()));
		345	op->destroy ();
		346	}
		347	}
		348
534	continue;	349	continue;
535	}
536		350
537
538	switch(i) {
539	case LL_NORMAL:
540	/* if we are loading an overlay, put the floors on the bottom */
541	if ((QUERY_FLAG(op, FLAG_IS_FLOOR) ||
542	QUERY_FLAG(op, FLAG_OVERLAY_FLOOR)) && mapflags & MAP_OVERLAY)
543	insert_ob_in_map(op,m,op,INS_NO_MERGE | INS_NO_WALK_ON | INS_ABOVE_FLOOR_ONLY | INS_MAP_LOAD);
544	else
545	insert_ob_in_map(op,m,op,INS_NO_MERGE | INS_NO_WALK_ON | INS_ON_TOP | INS_MAP_LOAD);
546
547	if (op->inv)
548	sum_weight(op);
549
550	prev=op,last_more=op;
551	break;
552
553	case LL_MORE:	351	case KW_EOF:
554	insert_ob_in_map(op,m, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ABOVE_FLOOR_ONLY);	352	return true;
555	op->head=prev,last_more->more=op,last_more=op;	353
		354	default:
		355	if (!f.parse_error ("map file"))
		356	return false;
556	break;	357	break;
557	}	358	}
558	if (mapflags & MAP_STYLE) {	359
559	remove_from_active_list(op);	360	f.next ();
		361	}
		362
		363	return true;
		364	}
		365
		366	void
		367	maptile::activate ()
		368	{
		369	if (spaces)
		370	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		371	for (object *op = ms->bot; op; op = op->above)
		372	op->activate_recursive ();
		373	}
		374
		375	void
		376	maptile::deactivate ()
		377	{
		378	if (spaces)
		379	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		380	for (object *op = ms->bot; op; op = op->above)
		381	op->deactivate_recursive ();
		382	}
		383
		384	bool
		385	maptile::_save_objects (object_freezer &f, int flags)
		386	{
		387	coroapi::cede_to_tick ();
		388
		389	if (flags & IO_HEADER)
		390	_save_header (f);
		391
		392	if (!spaces)
		393	return false;
		394
		395	for (int i = 0; i < size (); ++i)
		396	{
		397	bool unique = 0;
		398
		399	for (object *op = spaces [i].bot; op; op = op->above)
		400	{
		401	unique |= op->flag [FLAG_UNIQUE] && op->flag [FLAG_IS_FLOOR];
		402
		403	if (expect_false (!op->can_map_save ()))
		404	continue;
		405
		406	if (expect_false (unique || op->flag [FLAG_UNIQUE]))
		407	{
		408	if (flags & IO_UNIQUES)
		409	op->write (f);
		410	}
		411	else if (expect_true (flags & IO_OBJECTS))
		412	op->write (f);
560	}	413	}
561	op=get_object();
562	op->map = m;
563	}	414	}
564	for (i=0;i<m->width;i++){
565	for (j=0;j<m->height;j++){
566	unique =0;
567	/* check for unique items, or unique squares */
568	for (otmp = get_map_ob(m, i, j); otmp; otmp = otmp->above) {
569	if (QUERY_FLAG(otmp, FLAG_UNIQUE) || QUERY_FLAG(otmp, FLAG_OBJ_SAVE_ON_OVL))
570	unique = 1;
571	if (!(mapflags & (MAP_OVERLAY|MAP_PLAYER_UNIQUE) || unique))
572	SET_FLAG(otmp, FLAG_OBJ_ORIGINAL);
573	}
574	}
575	}
576	free_object(op);
577	link_multipart_objects(m);
578	}
579		415
580	/* This saves all the objects on the map in a non destructive fashion.	416	coroapi::cede_to_tick ();
581	* Modified by MSW 2001-07-01 to do in a single pass - reduces code,	417
582	* and we only save the head of multi part objects - this is needed	418	return true;
583	* in order to do map tiling properly.	419	}
		420
		421	bool
		422	maptile::_save_objects (const char *path, int flags)
		423	{
		424	object_freezer freezer;
		425
		426	if (!_save_objects (freezer, flags))
		427	return false;
		428
		429	return freezer.save (path);
		430	}
		431
		432	maptile::maptile ()
		433	{
		434	in_memory = MAP_SWAPPED;
		435
		436	/* The maps used to pick up default x and y values from the
		437	* map archetype. Mimic that behaviour.
584	*/	438	*/
585	void save_objects (mapstruct *m, object_freezer &fp, object_freezer &fp2, int flag) {	439	width = 16;
586	int i, j = 0,unique=0;	440	height = 16;
587	object *op;	441	timeout = 300;
588	/* first pass - save one-part objects */	442	max_nrof = 1000; // 1000 items of anything
589	for(i = 0; i < MAP_WIDTH(m); i++)	443	max_volume = 2000000; // 2m³
590	for (j = 0; j < MAP_HEIGHT(m); j++) {	444	}
591	unique=0;
592	for(op = get_map_ob (m, i, j); op; op = op->above) {
593	if (QUERY_FLAG(op,FLAG_IS_FLOOR) && QUERY_FLAG(op, FLAG_UNIQUE))
594	unique=1;
595		445
596	if(op->type == PLAYER) {	446	maptile::maptile (int w, int h)
597	LOG(llevDebug, "Player on map that is being saved\n");	447	{
598	continue;	448	in_memory = MAP_SWAPPED;
599	}
600		449
601	if (op->head || op->owner)	450	width = w;
602	continue;	451	height = h;
		452	reset_timeout = 0;
		453	timeout = 300;
		454	enter_x = 0;
		455	enter_y = 0;
603		456
604	if (unique || QUERY_FLAG(op, FLAG_UNIQUE))	457	alloc ();
605	save_object (fp2, op, 3);
606	else
607	if (flag == 0 ||
608	(flag == 2 && (!QUERY_FLAG(op, FLAG_OBJ_ORIGINAL) &&
609	!QUERY_FLAG(op, FLAG_UNPAID))))
610	save_object(fp, op, 3);
611
612	} /* for this space */
613	} /* for this j */
614	}	458	}
615		459
616	/*	460	/*
617	* Allocates, initialises, and returns a pointer to a mapstruct.
618	* Modified to no longer take a path option which was not being
619	* used anyways. MSW 2001-07-01
620	*/
621
622	mapstruct *get_linked_map(void) {
623	mapstruct *map=(mapstruct *) calloc(1,sizeof(mapstruct));
624	mapstruct *mp;
625
626	if(map==NULL)
627	fatal(OUT_OF_MEMORY);
628
629	for(mp=first_map;mp!=NULL&&mp->next!=NULL;mp=mp->next);
630	if(mp==NULL)
631	first_map=map;
632	else
633	mp->next=map;
634
635	map->in_memory=MAP_SWAPPED;
636	/* The maps used to pick up default x and y values from the
637	* map archetype. Mimic that behaviour.
638	*/
639	MAP_WIDTH(map)=16;
640	MAP_HEIGHT(map)=16;
641	MAP_RESET_TIMEOUT(map)=0;
642	MAP_TIMEOUT(map)=300;
643	MAP_ENTER_X(map)=0;
644	MAP_ENTER_Y(map)=0;
645	/*set part to -1 indicating conversion to weather map not yet done*/
646	MAP_WORLDPARTX(map)=-1;
647	MAP_WORLDPARTY(map)=-1;
648	return map;
649	}
650
651	/*
652	* Allocates the arrays contained in a mapstruct.	461	* Allocates the arrays contained in a maptile.
653	* This basically allocates the dynamic array of spaces for the	462	* This basically allocates the dynamic array of spaces for the
654	* map.	463	* map.
655	*/	464	*/
656		465	void
657	void allocate_map(mapstruct *m) {	466	maptile::alloc ()
658	m->in_memory = MAP_IN_MEMORY;	467	{
659	/* Log this condition and free the storage. We could I suppose
660	* realloc, but if the caller is presuming the data will be intact,
661	* that is their poor assumption.
662	*/
663	if (m->spaces) {	468	if (spaces)
664	LOG(llevError,"allocate_map called with already allocated map (%s)\n", m->path);
665	free(m->spaces);
666	}
667
668	m->spaces = (MapSpace *) calloc(1, MAP_WIDTH(m) * MAP_HEIGHT(m) * sizeof(MapSpace));
669
670	if(m->spaces==NULL)
671	fatal(OUT_OF_MEMORY);
672	}
673
674	/* Create and returns a map of the specific size. Used
675	* in random map code and the editor.
676	*/
677	mapstruct *get_empty_map(int sizex, int sizey) {
678	mapstruct *m = get_linked_map();
679	m->width = sizex;
680	m->height = sizey;
681	m->in_memory = MAP_SWAPPED;
682	allocate_map(m);
683	return m;	469	return;
		470
		471	spaces = salloc0<mapspace> (size ());
684	}	472	}
685		473
686	/* Takes a string from a map definition and outputs a pointer to the array of shopitems	474	/* Takes a string from a map definition and outputs a pointer to the array of shopitems
687	* corresponding to that string. Memory is allocated for this, it must be freed	475	* corresponding to that string. Memory is allocated for this, it must be freed
688	* at a later date.	476	* at a later date.
689	* Called by parse_map_headers below.	477	* Called by parse_map_headers below.
690	*/	478	*/
691		479	static shopitems *
692	static shopitems *parse_shop_string (const char *input_string) {	480	parse_shop_string (const char *input_string)
		481	{
693	char *shop_string, *p, *q, *next_semicolon, *next_colon;	482	char *shop_string, *p, *q, *next_semicolon, *next_colon;
694	shopitems *items=NULL;	483	shopitems *items = NULL;
695	int i=0, number_of_entries=0;	484	int i = 0, number_of_entries = 0;
696	const typedata *current_type;	485	const typedata *current_type;
697		486
698	shop_string=strdup_local(input_string);	487	shop_string = strdup (input_string);
699	p=shop_string;	488	p = shop_string;
700	/* first we'll count the entries, we'll need that for allocating the array shortly */	489	/* first we'll count the entries, we'll need that for allocating the array shortly */
701	while (p) {	490	while (p)
		491	{
702	p=strchr(p, ';');	492	p = strchr (p, ';');
703	number_of_entries++;	493	number_of_entries++;
704	if (p) p++;	494	if (p)
		495	p++;
705	}	496	}
		497
706	p=shop_string;	498	p = shop_string;
707	strip_endline(p);	499	strip_endline (p);
708	items=(shopitems *) CALLOC(number_of_entries+1, sizeof(shopitems));	500	items = new shopitems[number_of_entries + 1];
709	memset(items, 0, (sizeof(shopitems) * number_of_entries+1));
710	for (i=0; i<number_of_entries; i++) {	501	for (i = 0; i < number_of_entries; i++)
		502	{
711	if (!p) {	503	if (!p)
		504	{
712	LOG(llevError, "parse_shop_string: I seem to have run out of string, that shouldn't happen.\n");	505	LOG (llevError, "parse_shop_string: I seem to have run out of string, that shouldn't happen.\n");
713	break;	506	break;
714	}	507	}
		508
715	next_semicolon=strchr(p, ';');	509	next_semicolon = strchr (p, ';');
716	next_colon=strchr(p, ':');	510	next_colon = strchr (p, ':');
717	/* if there is a stregth specified, figure out what it is, we'll need it soon. */	511	/* if there is a stregth specified, figure out what it is, we'll need it soon. */
718	if (next_colon &&( !next_semicolon || next_colon<next_semicolon))	512	if (next_colon && (!next_semicolon || next_colon < next_semicolon))
719	items[i].strength=atoi(strchr(p,':')+1);	513	items[i].strength = atoi (strchr (p, ':') + 1);
		514
		515	if (isdigit (*p) || *p == '*')
720		516	{
721	if (isdigit(*p) || *p=='*') {
722	items[i].typenum = atoi(p); /* atoi returns 0 when we have an asterisk */	517	items[i].typenum = atoi (p); /* atoi returns 0 when we have an asterisk */
723	current_type=get_typedata(items[i].typenum);	518	current_type = get_typedata (items[i].typenum);
724	if (current_type) {	519	if (current_type)
		520	{
725	items[i].name=current_type->name;	521	items[i].name = current_type->name;
726	items[i].name_pl=current_type->name_pl;	522	items[i].name_pl = current_type->name_pl;
727	}
728	}
729	else { /*we have a named type, let's figure out what it is */
730	q=strpbrk(p,";:");
731	if (q) *q='\0';
732
733	current_type=get_typedata_by_name(p);
734	if (current_type) {
735	items[i].name=current_type->name;
736	items[i].typenum=current_type->number;
737	items[i].name_pl=current_type->name_pl;
738	}
739	else { /* oh uh, something's wrong, let's free up this one, and try
740	* the next entry while we're at it, better print a warning
741	*/
742	LOG(llevError, "invalid type %s defined in shopitems in string %s\n",
743	p, input_string);
744	}	523	}
745	}	524	}
		525	else
		526	{ /*we have a named type, let's figure out what it is */
		527	q = strpbrk (p, ";:");
		528	if (q)
		529	*q = '\0';
		530
		531	current_type = get_typedata_by_name (p);
		532	if (current_type)
		533	{
		534	items[i].name = current_type->name;
		535	items[i].typenum = current_type->number;
		536	items[i].name_pl = current_type->name_pl;
		537	}
		538	else
		539	{ /* oh uh, something's wrong, let's free up this one, and try
		540	* the next entry while we're at it, better print a warning
		541	*/
		542	LOG (llevError, "invalid type %s defined in shopitems in string %s\n", p, input_string);
		543	}
		544	}
		545
746	items[i].index=number_of_entries;	546	items[i].index = number_of_entries;
747	if (next_semicolon) p=++next_semicolon;	547	if (next_semicolon)
		548	p = ++next_semicolon;
		549	else
748	else p=NULL;	550	p = NULL;
749	}	551	}
		552
750	free(shop_string);	553	free (shop_string);
751	return items;	554	return items;
752	}	555	}
753		556
754	/* opposite of parse string, this puts the string that was originally fed in to	557	/* opposite of parse string, this puts the string that was originally fed in to
755	* the map (or something equivilent) into output_string. */	558	* the map (or something equivilent) into output_string. */
		559	static void
756	static void print_shop_string(mapstruct *m, char *output_string) {	560	print_shop_string (maptile *m, char *output_string)
		561	{
757	int i;	562	int i;
758	char tmp[MAX_BUF];	563	char tmp[MAX_BUF];
		564
759	strcpy(output_string, "");	565	strcpy (output_string, "");
760	for (i=0; i< m->shopitems[0].index; i++) {	566	for (i = 0; i < m->shopitems[0].index; i++)
		567	{
761	if (m->shopitems[i].typenum) {	568	if (m->shopitems[i].typenum)
		569	{
762	if (m->shopitems[i].strength) {	570	if (m->shopitems[i].strength)
763	sprintf(tmp, "%s:%d;", m->shopitems[i].name, m->shopitems[i].strength);	571	sprintf (tmp, "%s:%d;", m->shopitems[i].name, m->shopitems[i].strength);
764	}	572	else
765	else sprintf(tmp, "%s;", m->shopitems[i].name);	573	sprintf (tmp, "%s;", m->shopitems[i].name);
766	}	574	}
767	else {	575	else
		576	{
768	if (m->shopitems[i].strength) {	577	if (m->shopitems[i].strength)
769	sprintf(tmp, "*:%d;", m->shopitems[i].strength);	578	sprintf (tmp, "*:%d;", m->shopitems[i].strength);
770	}	579	else
771	else sprintf(tmp, "*");	580	sprintf (tmp, "*");
772	}	581	}
		582
773	strcat(output_string, tmp);	583	strcat (output_string, tmp);
774	}	584	}
775	}	585	}
776		586
777	/* This loads the header information of the map. The header	587	/* This loads the header information of the map. The header
778	* contains things like difficulty, size, timeout, etc.	588	* contains things like difficulty, size, timeout, etc.
…		…
782	* put all the stuff in the map object so that names actually make	592	* put all the stuff in the map object so that names actually make
783	* sense.	593	* sense.
784	* This could be done in lex (like the object loader), but I think	594	* This could be done in lex (like the object loader), but I think
785	* currently, there are few enough fields this is not a big deal.	595	* currently, there are few enough fields this is not a big deal.
786	* MSW 2001-07-01	596	* MSW 2001-07-01
787	* return 0 on success, 1 on failure.
788	*/	597	*/
789		598	bool
790	static int load_map_header(object_thawer &fp, mapstruct *m)	599	maptile::_load_header (object_thawer &thawer)
791	{	600	{
792	char buf[HUGE_BUF], msgbuf[HUGE_BUF], maplorebuf[HUGE_BUF], *key=NULL, *value, *end;	601	for (;;)
793	int msgpos=0;	602	{
794	int maplorepos=0;	603	switch (thawer.kw)
795
796	while (fgets(buf, HUGE_BUF-1, fp)!=NULL) {
797	buf[HUGE_BUF-1] = 0;
798	key = buf;
799	while (isspace(*key)) key++;
800	if (*key == 0) continue; /* empty line */
801	value = strchr(key, ' ');
802	if (!value) {
803	end = strchr(key, '\n');
804	if (end != NULL) {
805	*end = 0;
806	}
807	} else {
808	*value = 0;
809	value++;
810	end = strchr(value, '\n');
811	while (isspace(*value)) {
812	value++;
813	if (*value == '\0' || value == end) {
814	/* Nothing but spaces. */
815	value = NULL;
816	break;
817	}
818	}
819	}	604	{
820	if (!end) {	605	case KW_msg:
821	LOG(llevError, "Error loading map header - did not find a newline - perhaps file is truncated? Buf=%s\n",	606	thawer.get_ml (KW_endmsg, msg);
822	buf);	607	break;
		608
		609	case KW_lore: // CF+ extension
		610	thawer.get_ml (KW_endlore, maplore);
		611	break;
		612
		613	case KW_maplore:
		614	thawer.get_ml (KW_endmaplore, maplore);
		615	break;
		616
		617	case KW_arch:
		618	if (strcmp (thawer.get_str (), "map"))
		619	LOG (llevError, "%s: loading map and got a non 'arch map' line (arch %s), skipping.\n", &path, thawer.get_str ());
		620	break;
		621
		622	case KW_oid:
		623	thawer.get (this, thawer.get_sint32 ());
		624	break;
		625
		626	case KW_file_format_version: break; // nop
		627
		628	case KW_name: thawer.get (name); break;
		629	case KW_attach: thawer.get (attach); break;
		630	case KW_reset_time: thawer.get (reset_time); break;
		631	case KW_shopgreed: thawer.get (shopgreed); break;
		632	case KW_shopmin: thawer.get (shopmin); break;
		633	case KW_shopmax: thawer.get (shopmax); break;
		634	case KW_shoprace: thawer.get (shoprace); break;
		635	case KW_outdoor: thawer.get (outdoor); break;
		636	case KW_temp: thawer.get (temp); break;
		637	case KW_pressure: thawer.get (pressure); break;
		638	case KW_humid: thawer.get (humid); break;
		639	case KW_windspeed: thawer.get (windspeed); break;
		640	case KW_winddir: thawer.get (winddir); break;
		641	case KW_sky: thawer.get (sky); break;
		642
		643	case KW_per_player: thawer.get (per_player); break;
		644	case KW_per_party: thawer.get (per_party); break;
		645	case KW_no_reset: thawer.get (no_reset); break;
		646	case KW_no_drop: thawer.get (no_drop); break;
		647
		648	case KW_region: default_region = region::find (thawer.get_str ()); break;
		649	case KW_shopitems: shopitems = parse_shop_string (thawer.get_str ()); break;
		650
		651	// old names new names
		652	case KW_hp: case KW_enter_x: thawer.get (enter_x); break;
		653	case KW_sp: case KW_enter_y: thawer.get (enter_y); break;
		654	case KW_x: case KW_width: thawer.get (width); break;
		655	case KW_y: case KW_height: thawer.get (height); break;
		656	case KW_weight: case KW_reset_timeout: thawer.get (reset_timeout); break;
		657	case KW_value: case KW_swap_time: thawer.get (timeout); break;
		658	case KW_level: case KW_difficulty: thawer.get (difficulty); difficulty = clamp (difficulty, 1, settings.max_level); break;
		659	case KW_invisible: case KW_darkness: thawer.get (darkness); break;
		660	case KW_stand_still: case KW_fixed_resettime: thawer.get (fixed_resettime); break;
		661
		662	case KW_tile_path_1: thawer.get (tile_path [0]); break;
		663	case KW_tile_path_2: thawer.get (tile_path [1]); break;
		664	case KW_tile_path_3: thawer.get (tile_path [2]); break;
		665	case KW_tile_path_4: thawer.get (tile_path [3]); break;
		666
		667	case KW_ERROR:
		668	set_key_text (thawer.kw_str, thawer.value);
		669	break;
		670
		671	case KW_end:
		672	thawer.next ();
823	return 1;	673	return true;
824	}
825
826		674
827	/* key is the field name, value is what it should be set	675	default:
828	* to. We've already done the work to null terminate key,	676	if (!thawer.parse_error ("map", 0))
829	* and strip off any leading spaces for both of these.	677	return false;
830	* We have not touched the newline at the end of the line -
831	* these are needed for some values. the end pointer
832	* points to the first of the newlines.
833	* value could be NULL! It would be easy enough to just point
834	* this to "" to prevent cores, but that would let more errors slide
835	* through.
836	*
837	* First check for entries that do not use the value parameter, then
838	* validate that value is given and check for the remaining entries
839	* that use the parameter.
840	*/
841
842	if (!strcmp(key,"msg")) {
843	while (fgets(buf, HUGE_BUF-1, fp)!=NULL) {
844	if (!strcmp(buf,"endmsg\n")) break;
845	else {
846	/* slightly more efficient than strcat */
847	strcpy(msgbuf+msgpos, buf);
848	msgpos += strlen(buf);
849	}
850	}
851	/* There are lots of maps that have empty messages (eg, msg/endmsg
852	* with nothing between). There is no reason in those cases to
853	* keep the empty message. Also, msgbuf contains garbage data
854	* when msgpos is zero, so copying it results in crashes
855	*/
856	if (msgpos != 0)
857	m->msg = strdup_local(msgbuf);
858	}
859	else if (!strcmp(key,"maplore")) {
860	while (fgets(buf, HUGE_BUF-1, fp)!=NULL) {
861	if (!strcmp(buf,"endmaplore\n")) break;
862	else {
863	/* slightly more efficient than strcat */
864	strcpy(maplorebuf+maplorepos, buf);
865	maplorepos += strlen(buf);
866	}
867	}
868	if (maplorepos != 0)
869	m->maplore = strdup_local(maplorebuf);
870	}
871	else if (!strcmp(key,"end")) {
872	break;	678	break;
873	}	679	}
874	else if (value == NULL) {
875	LOG(llevError, "Got '%s' line without parameter in map header\n", key);
876	}
877	else if (!strcmp(key, "arch")) {
878	/* This is an oddity, but not something we care about much. */
879	if (strcmp(value,"map\n"))
880	LOG(llevError,"loading map and got a non 'arch map' line(%s %s)?\n",key,value);
881	}
882	else if (!strcmp(key,"name")) {
883	*end=0;
884	m->name = strdup_local(value);
885	}
886	/* first strcmp value on these are old names supported
887	* for compatibility reasons. The new values (second) are
888	* what really should be used.
889	*/
890	else if (!strcmp(key,"oid")) {
891	fp.get (m, atoi(value));
892	} else if (!strcmp(key, "attach")) {
893	m->attach = add_string (value);
894	} else if (!strcmp(key,"hp") || !strcmp(key, "enter_x")) {
895	m->enter_x = atoi(value);
896	} else if (!strcmp(key,"sp") || !strcmp(key, "enter_y")) {
897	m->enter_y = atoi(value);
898	} else if (!strcmp(key,"x") || !strcmp(key, "width")) {
899	m->width = atoi(value);
900	} else if (!strcmp(key,"y") || !strcmp(key, "height")) {
901	m->height = atoi(value);
902	} else if (!strcmp(key,"weight") || !strcmp(key, "reset_timeout")) {
903	m->reset_timeout = atoi(value);
904	} else if (!strcmp(key,"value") || !strcmp(key, "swap_time")) {
905	m->timeout = atoi(value);
906	} else if (!strcmp(key,"level") || !strcmp(key, "difficulty")) {
907	m->difficulty = atoi(value);
908	} else if (!strcmp(key,"invisible") || !strcmp(key, "darkness")) {
909	m->darkness = atoi(value);
910	} else if (!strcmp(key,"stand_still") || !strcmp(key, "fixed_resettime")) {
911	m->fixed_resettime = atoi(value);
912	} else if (!strcmp(key,"unique")) {
913	m->unique = atoi(value);
914	} else if (!strcmp(key,"template")) {
915	m->templatemap = atoi(value);
916	} else if (!strcmp(key,"region")) {
917	m->region = get_region_by_name(value);
918	} else if (!strcmp(key,"shopitems")) {
919	*end=0;
920	m->shopitems = parse_shop_string(value);
921	} else if (!strcmp(key,"shopgreed")) {
922	m->shopgreed = atof(value);
923	} else if (!strcmp(key,"shopmin")) {
924	m->shopmin = atol(value);
925	} else if (!strcmp(key,"shopmax")) {
926	m->shopmax = atol(value);
927	} else if (!strcmp(key,"shoprace")) {
928	*end=0;
929	m->shoprace = strdup_local(value);
930	} else if (!strcmp(key,"outdoor")) {
931	m->outdoor = atoi(value);
932	} else if (!strcmp(key, "temp")) {
933	m->temp = atoi(value);
934	} else if (!strcmp(key, "pressure")) {
935	m->pressure = atoi(value);
936	} else if (!strcmp(key, "humid")) {
937	m->humid = atoi(value);
938	} else if (!strcmp(key, "windspeed")) {
939	m->windspeed = atoi(value);
940	} else if (!strcmp(key, "winddir")) {
941	m->winddir = atoi(value);
942	} else if (!strcmp(key, "sky")) {
943	m->sky = atoi(value);
944	} else if (!strcmp(key, "nosmooth")) {
945	m->nosmooth = atoi(value);
946	}
947	else if (!strncmp(key,"tile_path_", 10)) {
948	int tile=atoi(key+10);
949		680
950	if (tile<1 || tile>4) {	681	thawer.next ();
951	LOG(llevError,"load_map_header: tile location %d out of bounds (%s)\n",
952	tile, m->path);
953	} else {
954	char *path;
955
956	*end = 0;
957
958	if (m->tile_path[tile-1]) {
959	LOG(llevError,"load_map_header: tile location %d duplicated (%s)\n",
960	tile, m->path);
961	free(m->tile_path[tile-1]);
962	m->tile_path[tile-1] = NULL;
963	}
964
965	if (check_path(value, 1) != -1) {
966	/* The unadorned path works. */
967	path = value;
968	} else {
969	/* Try again; it could be a relative exit. */
970
971	path = path_combine_and_normalize(m->path, value);
972
973	if (check_path(path, 1) == -1) {
974	LOG(llevError, "get_map_header: Bad tile path %s %s\n", m->path, value);
975	path = NULL;
976	}
977	}
978
979	if (editor) {
980	/* Use the value as in the file. */
981	m->tile_path[tile-1] = strdup_local(value);
982	} else if (path != NULL) {
983	/* Use the normalized value. */
984	m->tile_path[tile-1] = strdup_local(path);
985	}
986	} /* end if tile direction (in)valid */
987	}
988	else {
989	LOG(llevError,"Got unknown value in map header: %s %s\n", key, value);
990	}
991	}
992	if (!key || strcmp(key,"end")) {
993	LOG(llevError,"Got premature eof on map header!\n");
994	return 1;
995	}
996	return 0;
997	}
998
999	/*
1000	* Opens the file "filename" and reads information about the map
1001	* from the given file, and stores it in a newly allocated
1002	* mapstruct. A pointer to this structure is returned, or NULL on failure.
1003	* flags correspond to those in map.h. Main ones used are
1004	* MAP_PLAYER_UNIQUE, in which case we don't do any name changes, and
1005	* MAP_BLOCK, in which case we block on this load. This happens in all
1006	* cases, no matter if this flag is set or not.
1007	* MAP_STYLE: style map - don't add active objects, don't add to server
1008	* managed map list.
1009	*/
1010
1011	mapstruct *load_original_map(const char *filename, int flags) {
1012	mapstruct *m;
1013	char pathname[MAX_BUF];
1014		682	}
1015	LOG(llevDebug, "load_original_map: %s (%x)\n", filename,flags);
1016	if (flags & MAP_PLAYER_UNIQUE)
1017	strcpy(pathname, filename);
1018	else if (flags & MAP_OVERLAY)
1019	strcpy(pathname, create_overlay_pathname(filename));
1020	else
1021	strcpy(pathname, create_pathname(filename));
1022		683
1023	object_thawer thawer (pathname);	684	abort ();
1024
1025	if (!thawer)
1026	return 0;
1027
1028	m = get_linked_map();
1029
1030	strcpy (m->path, filename);
1031	if (load_map_header(thawer, m)) {
1032	LOG(llevError,"Error loading map header for %s, flags=%d\n",
1033	filename, flags);
1034	delete_map(m);
1035	return NULL;
1036	}
1037
1038	allocate_map(m);
1039
1040	m->in_memory=MAP_LOADING;
1041	load_objects (m, thawer, flags & (MAP_BLOCK|MAP_STYLE));
1042
1043	m->in_memory=MAP_IN_MEMORY;
1044	if (!MAP_DIFFICULTY(m))
1045	MAP_DIFFICULTY(m)=calculate_difficulty(m);
1046	set_map_reset_time(m);
1047	m->instantiate ();
1048	return (m);
1049	}
1050
1051	/*
1052	* Loads a map, which has been loaded earlier, from file.
1053	* Return the map object we load into (this can change from the passed
1054	* option if we can't find the original map)
1055	*/
1056
1057	static mapstruct *load_temporary_map(mapstruct *m) {
1058	int comp;
1059	char buf[MAX_BUF];
1060
1061	if (!m->tmpname) {
1062	LOG(llevError, "No temporary filename for map %s\n", m->path);
1063	strcpy(buf, m->path);
1064	delete_map(m);
1065	m = load_original_map(buf, 0);
1066	if(m==NULL) return NULL;
1067	fix_auto_apply(m); /* Chests which open as default */
1068	return m;
1069	}
1070
1071	object_thawer thawer (m->tmpname);
1072
1073	if (!thawer)
1074	{
1075	strcpy (buf, m->path);
1076	delete_map (m);
1077	m = load_original_map (buf, 0);
1078	if (!m) return NULL;
1079	fix_auto_apply (m); /* Chests which open as default */
1080	return m;
1081	}
1082
1083	if (load_map_header(thawer, m)) {
1084	LOG(llevError,"Error loading map header for %s (%s)\n",
1085	m->path, m->tmpname);
1086	delete_map(m);
1087	m = load_original_map(m->path, 0);
1088	return NULL;
1089	}
1090	allocate_map(m);
1091
1092	m->in_memory=MAP_LOADING;
1093	load_objects (m, thawer, 0);
1094
1095	m->in_memory=MAP_IN_MEMORY;
1096	INVOKE_MAP (SWAPIN, m);
1097	return m;
1098	}
1099
1100	/*
1101	* Loads a map, which has been loaded earlier, from file.
1102	* Return the map object we load into (this can change from the passed
1103	* option if we can't find the original map)
1104	*/
1105
1106	mapstruct *load_overlay_map(const char *filename, mapstruct *m) {
1107	char pathname[MAX_BUF];
1108
1109	strcpy(pathname, create_overlay_pathname(filename));
1110
1111	object_thawer thawer (pathname);
1112
1113	if (!thawer)
1114	return m;
1115
1116	if (load_map_header(thawer, m)) {
1117	LOG(llevError,"Error loading map header for overlay %s (%s)\n",
1118	m->path, pathname);
1119	delete_map(m);
1120	m = load_original_map(m->path, 0);
1121	return NULL;
1122	}
1123	/*allocate_map(m);*/
1124
1125	m->in_memory=MAP_LOADING;
1126	load_objects (m, thawer, MAP_OVERLAY);
1127
1128	m->in_memory=MAP_IN_MEMORY;
1129	return m;
1130	}	685	}
1131		686
1132	/******************************************************************************	687	/******************************************************************************
1133	* This is the start of unique map handling code	688	* This is the start of unique map handling code
1134	*****************************************************************************/	689	*****************************************************************************/
1135		690
1136	/* This goes through map 'm' and removed any unique items on the map. */	691	/* This goes through the maptile and removed any unique items on the map. */
1137	static void delete_unique_items(mapstruct *m)	692	void
		693	maptile::clear_unique_items ()
1138	{	694	{
1139	int i,j,unique;	695	for (int i = 0; i < size (); ++i)
1140	object *op, *next;	696	{
1141
1142	for(i=0; i<MAP_WIDTH(m); i++)
1143	for(j=0; j<MAP_HEIGHT(m); j++) {
1144	unique=0;	697	int unique = 0;
1145	for (op=get_map_ob(m, i, j); op; op=next) {	698	for (object *op = spaces [i].bot; op; )
1146	next = op->above;	699	{
		700	object *above = op->above;
		701
1147	if (QUERY_FLAG(op, FLAG_IS_FLOOR) && QUERY_FLAG(op, FLAG_UNIQUE))	702	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))
1148	unique=1;	703	unique = 1;
		704
1149	if(op->head == NULL && (QUERY_FLAG(op, FLAG_UNIQUE) || unique)) {	705	if (op->head_ () == op && (QUERY_FLAG (op, FLAG_UNIQUE) || unique))
1150	clean_object(op);
1151	if (QUERY_FLAG(op, FLAG_IS_LINKED))
1152	remove_button_link(op);
1153	remove_ob(op);
1154	free_object(op);
1155	}	706	{
		707	op->destroy_inv (false);
		708	op->destroy ();
1156	}	709	}
		710
		711	op = above;
1157	}	712	}
1158	}
1159
1160
1161	/*
1162	* Loads unique objects from file(s) into the map which is in memory
1163	* m is the map to load unique items into.
1164	*/
1165	static void load_unique_objects(mapstruct *m) {
1166	int count;
1167	char firstname[MAX_BUF];
1168
1169	for (count=0; count<10; count++) {
1170	sprintf(firstname, "%s.v%02d", create_items_path(m->path), count);
1171	if (!access(firstname, R_OK)) break;
1172	}
1173	/* If we get here, we did not find any map */
1174	if (count==10) return;
1175
1176	object_thawer thawer (firstname);
1177
1178	if (!thawer)
1179	return;
1180
1181	m->in_memory=MAP_LOADING;
1182	if (m->tmpname == NULL) /* if we have loaded unique items from */
1183	delete_unique_items(m); /* original map before, don't duplicate them */
1184	load_object(thawer, NULL, LO_NOREAD,0);
1185	load_objects (m, thawer, 0);
1186
1187	m->in_memory=MAP_IN_MEMORY;
1188	}
1189
1190
1191	/*
1192	* Saves a map to file. If flag is set, it is saved into the same
1193	* file it was (originally) loaded from. Otherwise a temporary
1194	* filename will be genarated, and the file will be stored there.
1195	* The temporary filename will be stored in the mapstructure.
1196	* If the map is unique, we also save to the filename in the map
1197	* (this should have been updated when first loaded)
1198	*/
1199
1200	int
1201	new_save_map (mapstruct * m, int flag)
1202	{
1203	char filename[MAX_BUF], buf[MAX_BUF], buf_s[MAX_BUF], shop[MAX_BUF];
1204	int i;
1205
1206	if (flag && !*m->path)
1207	{	713	}
1208	LOG (llevError, "Tried to save map without path.\n");	714	}
1209	return -1;	715
		716	bool
		717	maptile::_save_header (object_freezer &freezer)
		718	{
		719	#define MAP_OUT(k) freezer.put (KW_ ## k, k)
		720	#define MAP_OUT2(k,v) freezer.put (KW_ ## k, v)
		721
		722	MAP_OUT2 (arch, "map");
		723
		724	if (name) MAP_OUT (name);
		725	MAP_OUT (swap_time);
		726	MAP_OUT (reset_time);
		727	MAP_OUT (reset_timeout);
		728	MAP_OUT (fixed_resettime);
		729	MAP_OUT (no_reset);
		730	MAP_OUT (no_drop);
		731	MAP_OUT (difficulty);
		732
		733	if (default_region) MAP_OUT2 (region, default_region->name);
		734
		735	if (shopitems)
1210	}	736	{
1211		737	char shop[MAX_BUF];
1212	if (flag || (m->unique) || (m->templatemap))	738	print_shop_string (this, shop);
		739	MAP_OUT2 (shopitems, shop);
1213	{	740	}
1214	if (!m->unique && !m->templatemap)
1215	{ /* flag is set */
1216	if (flag == 2)
1217	strcpy (filename, create_overlay_pathname (m->path));
1218	else
1219	strcpy (filename, create_pathname (m->path));
1220	}
1221	else
1222	strcpy (filename, m->path);
1223		741
1224	make_path_to_file (filename);	742	MAP_OUT (shopgreed);
1225	}	743	MAP_OUT (shopmin);
1226	else	744	MAP_OUT (shopmax);
1227	{	745	if (shoprace) MAP_OUT (shoprace);
1228	if (!m->tmpname)	746	MAP_OUT (darkness);
1229	m->tmpname = tempnam_local (settings.tmpdir, NULL);	747	MAP_OUT (width);
		748	MAP_OUT (height);
		749	MAP_OUT (enter_x);
		750	MAP_OUT (enter_y);
1230		751
1231	strcpy (filename, m->tmpname);	752	if (msg) freezer.put (KW_msg , KW_endmsg , msg);
1232	}	753	if (maplore) freezer.put (KW_maplore, KW_endmaplore, maplore);
1233		754
1234	LOG (llevDebug, "Saving map %s to %s\n", m->path, filename);	755	MAP_OUT (outdoor);
1235	m->in_memory = MAP_SAVING;	756	MAP_OUT (temp);
		757	MAP_OUT (pressure);
		758	MAP_OUT (humid);
		759	MAP_OUT (windspeed);
		760	MAP_OUT (winddir);
		761	MAP_OUT (sky);
1236		762
		763	MAP_OUT (per_player);
		764	MAP_OUT (per_party);
		765
		766	if (tile_path [0]) MAP_OUT2 (tile_path_1, tile_path [0]);
		767	if (tile_path [1]) MAP_OUT2 (tile_path_2, tile_path [1]);
		768	if (tile_path [2]) MAP_OUT2 (tile_path_3, tile_path [2]);
		769	if (tile_path [3]) MAP_OUT2 (tile_path_4, tile_path [3]);
		770
		771	freezer.put (this);
		772	freezer.put (KW_end);
		773
		774	return true;
		775	}
		776
		777	bool
		778	maptile::_save_header (const char *path)
		779	{
1237	object_freezer freezer;	780	object_freezer freezer;
1238		781
1239	/* legacy */	782	if (!_save_header (freezer))
1240	fprintf (freezer, "arch map\n");	783	return false;
1241	if (m->name)
1242	fprintf (freezer, "name %s\n", m->name);
1243	if (!flag)
1244	fprintf (freezer, "swap_time %d\n", m->swap_time);
1245	if (m->reset_timeout)
1246	fprintf (freezer, "reset_timeout %d\n", m->reset_timeout);
1247	if (m->fixed_resettime)
1248	fprintf (freezer, "fixed_resettime %d\n", m->fixed_resettime);
1249	/* we unfortunately have no idea if this is a value the creator set
1250	* or a difficulty value we generated when the map was first loaded
1251	*/
1252	if (m->difficulty)
1253	fprintf (freezer, "difficulty %d\n", m->difficulty);
1254	if (m->region)
1255	fprintf (freezer, "region %s\n", m->region->name);
1256	if (m->shopitems)
1257	{
1258	print_shop_string (m, shop);
1259	fprintf (freezer, "shopitems %s\n", shop);
1260	}
1261	if (m->shopgreed)
1262	fprintf (freezer, "shopgreed %f\n", m->shopgreed);
1263	#ifndef WIN32
1264	if (m->shopmin)
1265	fprintf (freezer, "shopmin %llu\n", m->shopmin);
1266	if (m->shopmax)
1267	fprintf (freezer, "shopmax %llu\n", m->shopmax);
1268	#else
1269	if (m->shopmin)
1270	fprintf (freezer, "shopmin %I64u\n", m->shopmin);
1271	if (m->shopmax)
1272	fprintf (freezer, "shopmax %I64u\n", m->shopmax);
1273	#endif
1274	if (m->shoprace)
1275	fprintf (freezer, "shoprace %s\n", m->shoprace);
1276	if (m->darkness)
1277	fprintf (freezer, "darkness %d\n", m->darkness);
1278	if (m->width)
1279	fprintf (freezer, "width %d\n", m->width);
1280	if (m->height)
1281	fprintf (freezer, "height %d\n", m->height);
1282	if (m->enter_x)
1283	fprintf (freezer, "enter_x %d\n", m->enter_x);
1284	if (m->enter_y)
1285	fprintf (freezer, "enter_y %d\n", m->enter_y);
1286	if (m->msg)
1287	fprintf (freezer, "msg\n%sendmsg\n", m->msg);
1288	if (m->maplore)
1289	fprintf (freezer, "maplore\n%sendmaplore\n", m->maplore);
1290	if (m->unique)
1291	fprintf (freezer, "unique %d\n", m->unique);
1292	if (m->templatemap)
1293	fprintf (freezer, "template %d\n", m->templatemap);
1294	if (m->outdoor)
1295	fprintf (freezer, "outdoor %d\n", m->outdoor);
1296	if (m->temp)
1297	fprintf (freezer, "temp %d\n", m->temp);
1298	if (m->pressure)
1299	fprintf (freezer, "pressure %d\n", m->pressure);
1300	if (m->humid)
1301	fprintf (freezer, "humid %d\n", m->humid);
1302	if (m->windspeed)
1303	fprintf (freezer, "windspeed %d\n", m->windspeed);
1304	if (m->winddir)
1305	fprintf (freezer, "winddir %d\n", m->winddir);
1306	if (m->sky)
1307	fprintf (freezer, "sky %d\n", m->sky);
1308	if (m->nosmooth)
1309	fprintf (freezer, "nosmooth %d\n", m->nosmooth);
1310		784
1311	/* Save any tiling information, except on overlays */	785	return freezer.save (path);
1312	if (flag != 2)
1313	for (i = 0; i < 4; i++)
1314	if (m->tile_path[i])
1315	fprintf (freezer, "tile_path_%d %s\n", i + 1, m->tile_path[i]);
1316
1317	freezer.put (m);
1318	fprintf (freezer, "end\n");
1319
1320	/* In the game save unique items in the different file, but
1321	* in the editor save them to the normal map file.
1322	* If unique map, save files in the proper destination (set by
1323	* player)
1324	*/
1325	if ((flag == 0 || flag == 2) && !m->unique && !m->templatemap)
1326	{
1327	object_freezer unique;
1328
1329	if (flag == 2)
1330	save_objects (m, freezer, unique, 2);
1331	else
1332	save_objects (m, freezer, unique, 0);
1333
1334	sprintf (buf, "%s.v00", create_items_path (m->path));
1335
1336	unique.save (buf);
1337	}
1338	else
1339	{ /* save same file when not playing, like in editor */
1340	save_objects (m, freezer, freezer, 0);
1341	}
1342
1343	freezer.save (filename);
1344
1345	return 0;
1346	}
1347
1348
1349	/*
1350	* Remove and free all objects in the inventory of the given object.
1351	* object.c ?
1352	*/
1353
1354	void clean_object(object *op)
1355	{
1356	object *tmp, *next;
1357
1358	for(tmp = op->inv; tmp; tmp = next)
1359	{
1360	next = tmp->below;
1361	clean_object(tmp);
1362	if (QUERY_FLAG(tmp, FLAG_IS_LINKED))
1363	remove_button_link(tmp);
1364	remove_ob(tmp);
1365	free_object(tmp);
1366	}
1367	}	786	}
1368		787
1369	/*	788	/*
1370	* Remove and free all objects in the given map.	789	* Remove and free all objects in the given map.
1371	*/	790	*/
		791	void
		792	maptile::clear ()
		793	{
		794	if (spaces)
		795	{
		796	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		797	while (object *op = ms->bot)
		798	{
		799	// manually remove, as to not trigger anything
		800	if (ms->bot = op->above)
		801	ms->bot->below = 0;
1372		802
1373	void free_all_objects(mapstruct *m) {	803	op->flag [FLAG_REMOVED] = true;
1374	int i,j;
1375	object *op;
1376		804
1377	for(i=0;i<MAP_WIDTH(m);i++)	805	object *head = op->head_ ();
1378	for(j=0;j<MAP_HEIGHT(m);j++) {	806	if (op == head)
1379	object *previous_obj=NULL;	807	{
1380	while((op=GET_MAP_OB(m,i,j))!=NULL) {	808	op->destroy_inv (false);
1381	if (op==previous_obj) {	809	op->destroy ();
1382	LOG(llevDebug, "free_all_objects: Link error, bailing out.\n");
1383	break;
1384	}	810	}
1385	previous_obj=op;	811	else if (head->map != op->map)
1386	if(op->head!=NULL)
1387	op = op->head;
1388
1389	/* If the map isn't in memory, free_object will remove and
1390	* free objects in op's inventory. So let it do the job.
1391	*/	812	{
1392	if (m->in_memory==MAP_IN_MEMORY)	813	LOG (llevDebug, "bad luck for object crossing map borders: %s", head->debug_desc ());
1393	clean_object(op);	814	head->destroy ();
1394	remove_ob(op);
1395	free_object(op);
1396	}	815	}
1397	}	816	}
1398	#ifdef MANY_CORES	817
1399	/* I see periodic cores on metalforge where a map has been swapped out, but apparantly	818	sfree0 (spaces, size ());
1400	* an item on that map was not saved - look for that condition and die as appropriate -	819	}
1401	* this leaves more of the map data intact for better debugging.	820
		821	if (buttons)
		822	free_objectlinkpt (buttons), buttons = 0;
		823
		824	sfree0 (regions, size ());
		825	delete [] regionmap; regionmap = 0;
		826	}
		827
		828	void
		829	maptile::clear_header ()
		830	{
		831	name = 0;
		832	msg = 0;
		833	maplore = 0;
		834	shoprace = 0;
		835	delete [] shopitems, shopitems = 0;
		836
		837	for (int i = 0; i < 4; i++)
		838	tile_path [i] = 0;
		839	}
		840
		841	maptile::~maptile ()
		842	{
		843	assert (destroyed ());
		844	}
		845
		846	void
		847	maptile::clear_links_to (maptile *m)
		848	{
		849	/* We need to look through all the maps and see if any maps
		850	* are pointing at this one for tiling information. Since
		851	* tiling can be asymetric, we just can not look to see which
		852	* maps this map tiles with and clears those.
1402	*/	853	*/
1403	for (op=objects; op!=NULL; op=op->next) {	854	for (int i = 0; i < 4; i++)
1404	if (!QUERY_FLAG(op, FLAG_REMOVED) && op->map == m) {	855	if (tile_map[i] == m)
1405	LOG(llevDebug,"free_all_objects: object %s still on map after it should have been freed\n", op->name);	856	tile_map[i] = 0;
1406	abort();	857	}
		858
		859	void
		860	maptile::do_destroy ()
		861	{
		862	attachable::do_destroy ();
		863
		864	clear ();
		865	}
		866
		867	/* decay and destroy perishable items in a map */
		868	void
		869	maptile::do_decay_objects ()
		870	{
		871	if (!spaces)
		872	return;
		873
		874	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		875	for (object *above, *op = ms->bot; op; op = above)
		876	{
		877	above = op->above;
		878
		879	bool destroy = 0;
		880
		881	// do not decay anything above unique floor tiles (yet :)
		882	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))
		883	break;
		884
		885	if (QUERY_FLAG (op, FLAG_IS_FLOOR)
		886	|| QUERY_FLAG (op, FLAG_OBJ_ORIGINAL)
		887	|| QUERY_FLAG (op, FLAG_UNIQUE)
		888	|| QUERY_FLAG (op, FLAG_OVERLAY_FLOOR)
		889	|| QUERY_FLAG (op, FLAG_UNPAID)
		890	|| op->is_alive ())
		891	; // do not decay
		892	else if (op->is_weapon ())
		893	{
		894	op->stats.dam--;
		895	if (op->stats.dam < 0)
		896	destroy = 1;
1407	}	897	}
		898	else if (op->is_armor ())
		899	{
		900	op->stats.ac--;
		901	if (op->stats.ac < 0)
		902	destroy = 1;
		903	}
		904	else if (op->type == FOOD)
		905	{
		906	op->stats.food -= rndm (5, 20);
		907	if (op->stats.food < 0)
		908	destroy = 1;
		909	}
		910	else
		911	{
		912	int mat = op->materials;
		913
		914	if (mat & M_PAPER
		915	|| mat & M_LEATHER
		916	|| mat & M_WOOD
		917	|| mat & M_ORGANIC
		918	|| mat & M_CLOTH
		919	|| mat & M_LIQUID
		920	|| (mat & M_IRON && rndm (1, 5) == 1)
		921	|| (mat & M_GLASS && rndm (1, 2) == 1)
		922	|| ((mat & M_STONE || mat & M_ADAMANT) && rndm (1, 10) == 1)
		923	|| ((mat & M_SOFT_METAL || mat & M_BONE) && rndm (1, 3) == 1)
		924	|| (mat & M_ICE && temp > 32))
		925	destroy = 1;
		926	}
		927
		928	/* adjust overall chance below */
		929	if (destroy && rndm (0, 1))
		930	op->destroy ();
1408	}	931	}
1409	#endif
1410	}	932	}
1411		933
1412	/*	934	/*
1413	* Frees everything allocated by the given mapstructure.	935	* Updates every button on the map (by calling update_button() for them).
1414	* don't free tmpname - our caller is left to do that
1415	*/	936	*/
1416		937	void
1417	void free_map(mapstruct *m,int flag) {	938	maptile::update_buttons ()
1418	int i;	939	{
1419		940	for (oblinkpt *obp = buttons; obp; obp = obp->next)
1420	if (!m->in_memory) {	941	for (objectlink *ol = obp->link; ol; ol = ol->next)
1421	LOG(llevError,"Trying to free freed map.\n");	942	{
1422	return;	943	if (!ol->ob)
1423	}
1424	if (flag && m->spaces) free_all_objects(m);
1425	if (m->name) FREE_AND_CLEAR(m->name);
1426	if (m->spaces) FREE_AND_CLEAR(m->spaces);
1427	if (m->msg) FREE_AND_CLEAR(m->msg);
1428	if (m->maplore) FREE_AND_CLEAR(m->maplore);
1429	if (m->shopitems) FREE_AND_CLEAR(m->shopitems);
1430	if (m->shoprace) FREE_AND_CLEAR(m->shoprace);
1431	if (m->buttons)
1432	free_objectlinkpt(m->buttons);
1433	m->buttons = NULL;
1434	for (i=0; i<4; i++) {
1435	if (m->tile_path[i]) FREE_AND_CLEAR(m->tile_path[i]);
1436	m->tile_map[i] = NULL;
1437	}
1438	m->in_memory = MAP_SWAPPED;
1439	}
1440
1441	/*
1442	* function: vanish mapstruct
1443	* m : pointer to mapstruct, if NULL no action
1444	* this deletes all the data on the map (freeing pointers)
1445	* and then removes this map from the global linked list of maps.
1446	*/
1447
1448	void delete_map(mapstruct *m) {
1449	mapstruct *tmp, *last;
1450	int i;
1451
1452	if (!m)
1453	return;
1454
1455	m->clear ();
1456
1457	if (m->in_memory == MAP_IN_MEMORY) {
1458	/* change to MAP_SAVING, even though we are not,
1459	* so that remove_ob doesn't do as much work.
1460	*/	944	{
1461	m->in_memory = MAP_SAVING;	945	LOG (llevError, "Internal error in update_button (%s (%dx%d), connected %ld).\n",
1462	free_map (m, 1);	946	ol->ob ? (const char *) ol->ob->name : "null", ol->ob ? ol->ob->x : -1, ol->ob ? ol->ob->y : -1, obp->value);
1463	}	947	continue;
1464	/* move this out of free_map, since tmpname can still be needed if
1465	* the map is swapped out.
1466	*/
1467	if (m->tmpname) {
1468	free(m->tmpname);
1469	m->tmpname=NULL;
1470	}
1471	last = NULL;
1472	/* We need to look through all the maps and see if any maps
1473	* are pointing at this one for tiling information. Since
1474	* tiling can be assymetric, we just can not look to see which
1475	* maps this map tiles with and clears those.
1476	*/
1477	for (tmp = first_map; tmp != NULL; tmp = tmp->next) {
1478	if (tmp->next == m) last = tmp;
1479
1480	/* This should hopefully get unrolled on a decent compiler */
1481	for (i=0; i<4; i++)
1482	if (tmp->tile_map[i] == m) tmp->tile_map[i]=NULL;
1483	}
1484
1485	/* If last is null, then this should be the first map in the list */
1486	if (!last) {
1487	if (m == first_map)
1488	first_map = m->next;
1489	else
1490	/* m->path is a static char, so should hopefully still have
1491	* some useful data in it.
1492	*/
1493	LOG(llevError,"delete_map: Unable to find map %s in list\n",
1494	m->path);
1495	}
1496	else
1497	last->next = m->next;
1498
1499	free (m);
1500	}
1501
1502
1503
1504	/*
1505	* Makes sure the given map is loaded and swapped in.
1506	* name is path name of the map.
1507	* flags meaning:
1508	* 0x1 (MAP_FLUSH): flush the map - always load from the map directory,
1509	* and don't do unique items or the like.
1510	* 0x2 (MAP_PLAYER_UNIQUE) - this is a unique map for each player.
1511	* dont do any more name translation on it.
1512	*
1513	* Returns a pointer to the given map.
1514	*/
1515
1516	mapstruct *ready_map_name(const char *name, int flags) {
1517	mapstruct *m;
1518
1519	if (!name)
1520	return (NULL);
1521
1522	/* Have we been at this level before? */
1523	m = has_been_loaded (name);
1524
1525	/* Map is good to go, so just return it */
1526	if (m && (m->in_memory == MAP_LOADING || m->in_memory == MAP_IN_MEMORY)) {
1527	return m;
1528	}
1529
1530	/* unique maps always get loaded from their original location, and never
1531	* a temp location. Likewise, if map_flush is set, or we have never loaded
1532	* this map, load it now. I removed the reset checking from here -
1533	* it seems the probability of a player trying to enter a map that should
1534	* reset but hasn't yet is quite low, and removing that makes this function
1535	* a bit cleaner (and players probably shouldn't rely on exact timing for
1536	* resets in any case - if they really care, they should use the 'maps command.
1537	*/
1538	if ((flags & (MAP_FLUSH|MAP_PLAYER_UNIQUE)) || !m) {
1539
1540	/* first visit or time to reset */
1541	if (m) {
1542	clean_tmp_map(m); /* Doesn't make much difference */
1543	delete_map(m);
1544	}	948	}
1545		949
1546	/* create and load a map */	950	if (ol->ob->type == BUTTON || ol->ob->type == PEDESTAL)
1547	if (flags & MAP_PLAYER_UNIQUE)
1548	LOG(llevDebug, "Trying to load map %s.\n", name);
1549	else
1550	LOG(llevDebug, "Trying to load map %s.\n", create_pathname(name));
1551
1552	if (!(m = load_original_map(name, (flags & MAP_PLAYER_UNIQUE))))
1553	return (NULL);
1554
1555	fix_auto_apply(m); /* Chests which open as default */
1556
1557	/* If a player unique map, no extra unique object file to load.
1558	* if from the editor, likewise.
1559	*/	951	{
1560	if (! (flags & (MAP_FLUSH|MAP_PLAYER_UNIQUE)))	952	update_button (ol->ob);
1561	load_unique_objects(m);	953	break;
1562
1563	if (! (flags & (MAP_FLUSH|MAP_PLAYER_UNIQUE|MAP_OVERLAY))) {
1564	m=load_overlay_map(name, m);
1565	if (m==NULL)
1566	return NULL;
1567	}	954	}
1568
1569	if (flags & MAP_PLAYER_UNIQUE)
1570	INVOKE_MAP (SWAPIN, m);
1571
1572	} else {
1573	/* If in this loop, we found a temporary map, so load it up. */
1574
1575	m=load_temporary_map (m);
1576	if(m==NULL) return NULL;
1577	load_unique_objects(m);
1578
1579	clean_tmp_map(m);
1580	m->in_memory = MAP_IN_MEMORY;
1581	/* tempnam() on sun systems (probably others) uses malloc
1582	* to allocated space for the string. Free it here.
1583	* In some cases, load_temporary_map above won't find the
1584	* temporary map, and so has reloaded a new map. If that
1585	* is the case, tmpname is now null
1586	*/
1587	if (m->tmpname) free(m->tmpname);
1588	m->tmpname = NULL;
1589	/* It's going to be saved anew anyway */
1590	}	955	}
1591
1592	/* Below here is stuff common to both first time loaded maps and
1593	* temp maps.
1594	*/
1595
1596	decay_objects(m); /* start the decay */
1597	/* In case other objects press some buttons down */
1598	update_buttons(m);
1599	if (m->outdoor)
1600	set_darkness_map(m);
1601	/* run the weather over this map */
1602	weather_effect(name);
1603	return m;
1604	}	956	}
1605
1606		957
1607	/*	958	/*
1608	* This routine is supposed to find out the difficulty of the map.	959	* This routine is supposed to find out the difficulty of the map.
1609	* difficulty does not have a lot to do with character level,	960	* difficulty does not have a lot to do with character level,
1610	* but does have a lot to do with treasure on the map.	961	* but does have a lot to do with treasure on the map.
…		…
1612	* Difficulty can now be set by the map creature. If the value stored	963	* Difficulty can now be set by the map creature. If the value stored
1613	* in the map is zero, then use this routine. Maps should really	964	* in the map is zero, then use this routine. Maps should really
1614	* have a difficulty set than using this function - human calculation	965	* have a difficulty set than using this function - human calculation
1615	* is much better than this functions guesswork.	966	* is much better than this functions guesswork.
1616	*/	967	*/
1617		968	int
1618	int calculate_difficulty(mapstruct *m) {	969	maptile::estimate_difficulty () const
1619	object *op;	970	{
1620	archetype *at;
1621	int x, y, i, diff;
1622	long monster_cnt = 0;	971	long monster_cnt = 0;
1623	double avgexp = 0;	972	double avgexp = 0;
1624	sint64 total_exp = 0;	973	sint64 total_exp = 0;
1625		974
1626	if (MAP_DIFFICULTY (m))	975	for (mapspace *ms = spaces + size (); ms-- > spaces; )
1627	{	976	for (object *op = ms->bot; op; op = op->above)
1628	LOG(llevDebug, "Using stored map difficulty: %d\n", MAP_DIFFICULTY (m));
1629	return MAP_DIFFICULTY (m);
1630	}
1631
1632	for(x = 0; x < MAP_WIDTH(m); x++)
1633	for(y = 0; y < MAP_HEIGHT(m); y++)
1634	for(op = get_map_ob(m, x, y); op != NULL; op = op->above)
1635	{	977	{
1636	if(QUERY_FLAG (op, FLAG_MONSTER))	978	if (QUERY_FLAG (op, FLAG_MONSTER))
1637	{	979	{
1638	total_exp += op->stats.exp;	980	total_exp += op->stats.exp;
1639	monster_cnt++;	981	monster_cnt++;
1640	}	982	}
1641		983
1642	if(QUERY_FLAG (op, FLAG_GENERATOR))	984	if (QUERY_FLAG (op, FLAG_GENERATOR))
1643	{	985	{
1644	total_exp += op->stats.exp;	986	total_exp += op->stats.exp;
1645	at = type_to_archetype(GENERATE_TYPE (op));
1646		987
1647	if(at != NULL)	988	if (archetype *at = op->other_arch)
		989	{
1648	total_exp += at->clone.stats.exp * 8;	990	total_exp += at->stats.exp * 8;
1649
1650	monster_cnt++;	991	monster_cnt++;
1651	}	992	}
		993
		994	for (object *inv = op->inv; inv; inv = inv->below)
		995	{
		996	total_exp += op->stats.exp * 8;
		997	monster_cnt++;
		998	}
1652	}	999	}
		1000	}
1653		1001
1654	avgexp = (double) total_exp / monster_cnt;	1002	avgexp = (double) total_exp / monster_cnt;
1655		1003
1656	for (i = 1; i <= settings.max_level; i++)	1004	for (int i = 1; i <= settings.max_level; i++)
1657	{
1658	if ((level_exp (i, 1) - level_exp (i - 1, 1)) > (100 * avgexp))	1005	if ((level_exp (i, 1) - level_exp (i - 1, 1)) > (100 * avgexp))
1659	{
1660	/* LOG(llevDebug, "Calculated difficulty for map: %s: %d\n", m->name, i); */
1661	return i;	1006	return i;
1662	}
1663	}
1664		1007
1665	return 1;	1008	return 1;
1666	}
1667
1668	void clean_tmp_map(mapstruct *m) {
1669	if(m->tmpname == NULL)
1670	return;
1671	INVOKE_MAP (CLEAN, m);
1672	(void) unlink(m->tmpname);
1673	}
1674
1675	void free_all_maps(void)
1676	{
1677	int real_maps=0;
1678
1679	while (first_map) {
1680	/* I think some of the callers above before it gets here set this to be
1681	* saving, but we still want to free this data
1682	*/
1683	if (first_map->in_memory == MAP_SAVING) first_map->in_memory = MAP_IN_MEMORY;
1684	delete_map(first_map);
1685	real_maps++;
1686	}
1687	LOG(llevDebug,"free_all_maps: Freed %d maps\n", real_maps);
1688	}	1009	}
1689		1010
1690	/* change_map_light() - used to change map light level (darkness)	1011	/* change_map_light() - used to change map light level (darkness)
1691	* up or down. Returns true if successful. It should now be	1012	* up or down. Returns true if successful. It should now be
1692	* possible to change a value by more than 1.	1013	* possible to change a value by more than 1.
1693	* Move this from los.c to map.c since this is more related	1014	* Move this from los.c to map.c since this is more related
1694	* to maps than los.	1015	* to maps than los.
1695	* postive values make it darker, negative make it brighter	1016	* postive values make it darker, negative make it brighter
1696	*/	1017	*/
1697		1018	int
1698	int change_map_light(mapstruct *m, int change) {	1019	maptile::change_map_light (int change)
		1020	{
1699	int new_level = m->darkness + change;	1021	int new_level = darkness + change;
1700		1022
1701	/* Nothing to do */	1023	/* Nothing to do */
1702	if(!change || (new_level <= 0 && m->darkness == 0) ||	1024	if (!change || (new_level <= 0 && darkness == 0) || (new_level >= MAX_DARKNESS && darkness >= MAX_DARKNESS))
1703	(new_level >= MAX_DARKNESS && m->darkness >=MAX_DARKNESS)) {
1704	return 0;	1025	return 0;
1705	}
1706		1026
1707	/* inform all players on the map */	1027	/* inform all players on the map */
1708	if (change>0)	1028	if (change > 0)
1709	new_info_map(NDI_BLACK|NDI_UNIQUE, m,"It becomes darker.");	1029	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes darker.");
1710	else	1030	else
1711	new_info_map(NDI_BLACK|NDI_UNIQUE, m,"It becomes brighter.");	1031	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes brighter.");
1712		1032
1713	/* Do extra checking. since m->darkness is a unsigned value,	1033	/* Do extra checking. since darkness is a unsigned value,
1714	* we need to be extra careful about negative values.	1034	* we need to be extra careful about negative values.
1715	* In general, the checks below are only needed if change	1035	* In general, the checks below are only needed if change
1716	* is not +/-1	1036	* is not +/-1
1717	*/	1037	*/
1718	if (new_level < 0) m->darkness = 0;	1038	if (new_level < 0)
1719	else if (new_level >=MAX_DARKNESS) m->darkness = MAX_DARKNESS;	1039	darkness = 0;
		1040	else if (new_level >= MAX_DARKNESS)
		1041	darkness = MAX_DARKNESS;
		1042	else
1720	else m->darkness=new_level;	1043	darkness = new_level;
1721		1044
1722	/* All clients need to get re-updated for the change */	1045	/* All clients need to get re-updated for the change */
1723	update_all_map_los(m);	1046	update_all_map_los (this);
		1047
1724	return 1;	1048	return 1;
1725	}	1049	}
1726
1727		1050
1728	/*	1051	/*
1729	* This function updates various attributes about a specific space	1052	* This function updates various attributes about a specific space
1730	* on the map (what it looks like, whether it blocks magic,	1053	* on the map (what it looks like, whether it blocks magic,
1731	* has a living creatures, prevents people from passing	1054	* has a living creatures, prevents people from passing
1732	* through, etc)	1055	* through, etc)
1733	*/	1056	*/
1734	void update_position (mapstruct *m, int x, int y) {	1057	void
1735	object *tmp, *last = NULL;	1058	mapspace::update_ ()
1736	uint8 flags = 0, oldflags, light=0, anywhere=0;	1059	{
1737	New_Face *top,*floor, *middle;	1060	object *last = 0;
1738	object *top_obj, *floor_obj, *middle_obj;	1061	uint8 flags = P_UPTODATE, light = 0, anywhere = 0;
1739	MoveType move_block=0, move_slow=0, move_on=0, move_off=0, move_allow=0;	1062	MoveType move_block = 0, move_slow = 0, move_on = 0, move_off = 0, move_allow = 0;
1740		1063
1741	oldflags = GET_MAP_FLAGS(m,x,y);	1064	//object *middle = 0;
1742	if (!(oldflags & P_NEED_UPDATE)) {	1065	//object *top = 0;
1743	LOG(llevDebug,"update_position called with P_NEED_UPDATE not set: %s (%d, %d)\n",	1066	//object *floor = 0;
1744	m->path, x, y);	1067	// this seems to generate better code than using locals, above
1745	return;	1068	object *&top = faces_obj[0] = 0;
		1069	object *&middle = faces_obj[1] = 0;
		1070	object *&floor = faces_obj[2] = 0;
		1071
		1072	for (object *tmp = bot; tmp; last = tmp, tmp = tmp->above)
1746	}	1073	{
1747
1748	middle=blank_face;
1749	top=blank_face;
1750	floor=blank_face;
1751
1752	middle_obj = NULL;
1753	top_obj = NULL;
1754	floor_obj = NULL;
1755
1756	for (tmp = get_map_ob (m, x, y); tmp; last = tmp, tmp = tmp->above) {
1757
1758	/* This could be made additive I guess (two lights better than	1074	/* This could be made additive I guess (two lights better than
1759	* one). But if so, it shouldn't be a simple additive - 2	1075	* one). But if so, it shouldn't be a simple additive - 2
1760	* light bulbs do not illuminate twice as far as once since	1076	* light bulbs do not illuminate twice as far as once since
1761	* it is a disapation factor that is squared (or is it cubed?)	1077	* it is a dissapation factor that is cubed.
1762	*/	1078	*/
1763	if (tmp->glow_radius > light) light = tmp->glow_radius;	1079	light = max (light, tmp->glow_radius);
1764		1080
1765	/* This call is needed in order to update objects the player	1081	/* This call is needed in order to update objects the player
1766	* is standing in that have animations (ie, grass, fire, etc).	1082	* is standing in that have animations (ie, grass, fire, etc).
1767	* However, it also causes the look window to be re-drawn	1083	* However, it also causes the look window to be re-drawn
1768	* 3 times each time the player moves, because many of the	1084	* 3 times each time the player moves, because many of the
1769	* functions the move_player calls eventualy call this.	1085	* functions the move_player calls eventualy call this.
1770	*	1086	*
1771	* Always put the player down for drawing.	1087	* Always put the player down for drawing.
1772	*/	1088	*/
1773	if (!tmp->invisible) {	1089	if (!tmp->invisible)
		1090	{
1774	if ((tmp->type==PLAYER || QUERY_FLAG(tmp, FLAG_MONSTER))) {	1091	if ((tmp->type == PLAYER || QUERY_FLAG (tmp, FLAG_MONSTER)))
1775	top = tmp->face;
1776	top_obj = tmp;	1092	top = tmp;
		1093	else if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))
		1094	{
		1095	/* If we got a floor, that means middle and top were below it,
		1096	* so should not be visible, so we clear them.
		1097	*/
		1098	middle = 0;
		1099	top = 0;
		1100	floor = tmp;
1777	}	1101	}
		1102	/* Flag anywhere have high priority */
1778	else if (QUERY_FLAG(tmp,FLAG_IS_FLOOR)) {	1103	else if (QUERY_FLAG (tmp, FLAG_SEE_ANYWHERE))
1779	/* If we got a floor, that means middle and top were below it,
1780	* so should not be visible, so we clear them.
1781	*/	1104	{
1782	middle=blank_face;	1105	middle = tmp;
1783	top=blank_face;	1106	anywhere = 1;
1784	floor = tmp->face;
1785	floor_obj = tmp;
1786	}	1107	}
1787	/* Flag anywhere have high priority */	1108	/* Find the highest visible face around. If equal
1788	else if (QUERY_FLAG(tmp, FLAG_SEE_ANYWHERE)) {	1109	* visibilities, we still want the one nearer to the
		1110	* top
		1111	*/
		1112	else if (!middle || (::faces [tmp->face].visibility > ::faces [middle->face].visibility && !anywhere))
1789	middle = tmp->face;	1113	middle = tmp;
		1114	}
1790		1115
		1116	if (tmp == tmp->above)
		1117	{
		1118	LOG (llevError, "Error in structure of map\n");
		1119	exit (-1);
		1120	}
		1121
		1122	move_slow |= tmp->move_slow;
		1123	move_block |= tmp->move_block;
		1124	move_on |= tmp->move_on;
		1125	move_off |= tmp->move_off;
		1126	move_allow |= tmp->move_allow;
		1127
		1128	if (QUERY_FLAG (tmp, FLAG_BLOCKSVIEW)) flags |= P_BLOCKSVIEW;
		1129	if (QUERY_FLAG (tmp, FLAG_NO_MAGIC)) flags |= P_NO_MAGIC;
		1130	if (tmp->type == PLAYER) flags |= P_PLAYER;
		1131	if (tmp->type == SAFE_GROUND) flags |= P_SAFE;
		1132	if (QUERY_FLAG (tmp, FLAG_ALIVE)) flags |= P_IS_ALIVE;
		1133	if (QUERY_FLAG (tmp, FLAG_DAMNED)) flags |= P_NO_CLERIC;
		1134	}
		1135
		1136	this->light = light;
		1137	this->flags_ = flags;
		1138	this->move_block = move_block & ~move_allow;
		1139	this->move_on = move_on;
		1140	this->move_off = move_off;
		1141	this->move_slow = move_slow;
		1142
		1143	/* At this point, we have a floor face (if there is a floor),
		1144	* and the floor is set - we are not going to touch it at
		1145	* this point.
		1146	* middle contains the highest visibility face.
		1147	* top contains a player/monster face, if there is one.
		1148	*
		1149	* We now need to fill in top.face and/or middle.face.
		1150	*/
		1151
		1152	/* If the top face also happens to be high visibility, re-do our
		1153	* middle face. This should not happen, as we already have the
		1154	* else statement above so middle should not get set. OTOH, it
		1155	* may be possible for the faces to match but be different objects.
		1156	*/
		1157	if (top == middle)
		1158	middle = 0;
		1159
		1160	/* There are three posibilities at this point:
		1161	* 1) top face is set, need middle to be set.
		1162	* 2) middle is set, need to set top.
		1163	* 3) neither middle or top is set - need to set both.
		1164	*/
		1165
		1166	for (object *tmp = last; tmp; tmp = tmp->below)
		1167	{
		1168	/* Once we get to a floor, stop, since we already have a floor object */
		1169	if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))
		1170	break;
		1171
		1172	/* If two top faces are already set, quit processing */
		1173	if (top && middle)
		1174	break;
		1175
		1176	/* Only show visible faces */
		1177	if (!tmp->invisible)
		1178	{
		1179	/* Fill in top if needed */
		1180	if (!top)
		1181	{
		1182	top = tmp;
		1183	if (top == middle)
1791	middle_obj = tmp;	1184	middle = 0;
1792	anywhere =1;
1793	}	1185	}
1794	/* Find the highest visible face around. If equal	1186	else
1795	* visibilities, we still want the one nearer to the
1796	* top
1797	*/
1798	else if (middle == blank_face || (tmp->face->visibility > middle->visibility && !anywhere)) {
1799	middle = tmp->face;
1800	middle_obj = tmp;
1801	}	1187	{
1802	}
1803	if (tmp==tmp->above) {
1804	LOG(llevError, "Error in structure of map\n");
1805	exit (-1);
1806	}
1807
1808	move_slow |= tmp->move_slow;
1809	move_block |= tmp->move_block;
1810	move_on |= tmp->move_on;
1811	move_off |= tmp->move_off;
1812	move_allow |= tmp->move_allow;
1813
1814	if (QUERY_FLAG(tmp,FLAG_ALIVE))
1815	flags |= P_IS_ALIVE;
1816	if (QUERY_FLAG(tmp,FLAG_NO_MAGIC))
1817	flags |= P_NO_MAGIC;
1818	if (QUERY_FLAG(tmp,FLAG_DAMNED))
1819	flags |= P_NO_CLERIC;
1820	if (tmp->type == SAFE_GROUND)
1821	flags |= P_SAFE | P_NO_CLERIC | P_NO_MAGIC;
1822
1823	if (QUERY_FLAG(tmp,FLAG_BLOCKSVIEW))
1824	flags |= P_BLOCKSVIEW;
1825	} /* for stack of objects */
1826
1827	/* we don't want to rely on this function to have accurate flags, but
1828	* since we're already doing the work, we calculate them here.
1829	* if they don't match, logic is broken someplace.
1830	*/
1831	if (((oldflags & ~(P_NEED_UPDATE|P_NO_ERROR)) != flags) &&
1832	(!(oldflags & P_NO_ERROR))) {
1833	LOG(llevDebug,"update_position: updated flags do not match old flags: %s (old=%d,new=%d) %x != %x\n",
1834	m->path, x, y,
1835	(oldflags & ~P_NEED_UPDATE), flags);
1836	}
1837	SET_MAP_FLAGS(m, x, y, flags);
1838	SET_MAP_MOVE_BLOCK(m, x, y, move_block & ~move_allow);
1839	SET_MAP_MOVE_ON(m, x, y, move_on);
1840	SET_MAP_MOVE_OFF(m, x, y, move_off);
1841	SET_MAP_MOVE_SLOW(m, x, y, move_slow);
1842
1843	/* At this point, we have a floor face (if there is a floor),
1844	* and the floor is set - we are not going to touch it at
1845	* this point.
1846	* middle contains the highest visibility face.
1847	* top contains a player/monster face, if there is one.
1848	*
1849	* We now need to fill in top.face and/or middle.face.
1850	*/
1851
1852	/* If the top face also happens to be high visibility, re-do our
1853	* middle face. This should not happen, as we already have the
1854	* else statement above so middle should not get set. OTOH, it
1855	* may be possible for the faces to match but be different objects.
1856	*/
1857	if (top == middle) middle=blank_face;
1858
1859	/* There are three posibilities at this point:
1860	* 1) top face is set, need middle to be set.
1861	* 2) middle is set, need to set top.
1862	* 3) neither middle or top is set - need to set both.
1863	*/
1864
1865	for (tmp=last; tmp; tmp=tmp->below) {
1866	/* Once we get to a floor, stop, since we already have a floor object */
1867	if (QUERY_FLAG(tmp,FLAG_IS_FLOOR)) break;
1868
1869	/* If two top faces are already set, quit processing */
1870	if ((top != blank_face) && (middle != blank_face)) break;
1871
1872	/* Only show visible faces, unless its the editor - show all */
1873	if (!tmp->invisible || editor) {
1874	/* Fill in top if needed */
1875	if (top == blank_face) {
1876	top = tmp->face;
1877	top_obj = tmp;
1878	if (top == middle) middle=blank_face;
1879	} else {
1880	/* top is already set - we should only get here if	1188	/* top is already set - we should only get here if
1881	* middle is not set	1189	* middle is not set
1882	*	1190	*
1883	* Set the middle face and break out, since there is nothing	1191	* Set the middle face and break out, since there is nothing
1884	* more to fill in. We don't check visiblity here, since	1192	* more to fill in. We don't check visiblity here, since
1885	*	1193	*
1886	*/	1194	*/
1887	if (tmp->face != top ) {	1195	if (tmp != top)
1888	middle = tmp->face;	1196	{
1889	middle_obj = tmp;	1197	middle = tmp;
1890	break;	1198	break;
1891	}	1199	}
1892	}	1200	}
1893	}	1201	}
1894	}	1202	}
1895	if (middle == floor) middle = blank_face;
1896	if (top == middle) middle = blank_face;
1897	SET_MAP_FACE(m,x,y,top,0);
1898	if(top != blank_face)
1899	SET_MAP_FACE_OBJ(m,x,y,top_obj,0);
1900	else
1901	SET_MAP_FACE_OBJ(m,x,y,NULL,0);
1902	SET_MAP_FACE(m,x,y,middle,1);
1903	if(middle != blank_face)
1904	SET_MAP_FACE_OBJ(m,x,y,middle_obj,1);
1905	else
1906	SET_MAP_FACE_OBJ(m,x,y,NULL,1);
1907	SET_MAP_FACE(m,x,y,floor,2);
1908	if(floor != blank_face)
1909	SET_MAP_FACE_OBJ(m,x,y,floor_obj,2);
1910	else
1911	SET_MAP_FACE_OBJ(m,x,y,NULL,2);
1912	SET_MAP_LIGHT(m,x,y,light);
1913	}
1914		1203
		1204	if (middle == floor)
		1205	middle = 0;
1915		1206
1916	void set_map_reset_time(mapstruct *map) {	1207	if (top == middle)
1917	int timeout;	1208	middle = 0;
1918		1209
1919	timeout = MAP_RESET_TIMEOUT(map);	1210	#if 0
1920	if (timeout <= 0)	1211	faces_obj [0] = top;
1921	timeout = MAP_DEFAULTRESET;	1212	faces_obj [1] = middle;
1922	if (timeout >= MAP_MAXRESET)	1213	faces_obj [2] = floor;
1923	timeout = MAP_MAXRESET;	1214	#endif
1924	MAP_WHEN_RESET(map) = seconds()+timeout;
1925	}	1215	}
1926		1216
1927	/* this updates the orig_map->tile_map[tile_num] value after loading	1217	uint64
1928	* the map. It also takes care of linking back the freshly loaded	1218	mapspace::volume () const
1929	* maps tile_map values if it tiles back to this one. It returns
1930	* the value of orig_map->tile_map[tile_num]. It really only does this
1931	* so that it is easier for calling functions to verify success.
1932	*/
1933
1934	static mapstruct *load_and_link_tiled_map(mapstruct *orig_map, int tile_num)
1935	{	1219	{
1936	int dest_tile = (tile_num +2) % 4;	1220	uint64 vol = 0;
1937	char *path = path_combine_and_normalize(orig_map->path, orig_map->tile_path[tile_num]);
1938		1221
1939	orig_map->tile_map[tile_num] = ready_map_name(path, 0);	1222	for (object *op = top; op && !op->flag [FLAG_NO_PICK]; op = op->below)
		1223	vol += op->volume ();
1940		1224
1941	/* need to do a strcmp here as the orig_map->path is not a shared string */	1225	return vol;
1942	if (orig_map->tile_map[tile_num]->tile_path[dest_tile] &&	1226	}
1943	!strcmp(orig_map->tile_map[tile_num]->tile_path[dest_tile], orig_map->path))
1944	orig_map->tile_map[tile_num]->tile_map[dest_tile] = orig_map;
1945		1227
1946	return orig_map->tile_map[tile_num];	1228	bool
		1229	maptile::tile_available (int dir, bool load)
		1230	{
		1231	if (!tile_path[dir])
		1232	return 0;
		1233
		1234	if (tile_map[dir] && (!load || tile_map[dir]->in_memory == MAP_ACTIVE))
		1235	return 1;
		1236
		1237	if ((tile_map[dir] = find_async (tile_path[dir], this, load)))
		1238	return 1;
		1239
		1240	return 0;
1947	}	1241	}
1948		1242
1949	/* this returns TRUE if the coordinates (x,y) are out of	1243	/* this returns TRUE if the coordinates (x,y) are out of
1950	* map m. This function also takes into account any	1244	* map m. This function also takes into account any
1951	* tiling considerations, loading adjacant maps as needed.	1245	* tiling considerations, loading adjacant maps as needed.
1952	* This is the function should always be used when it	1246	* This is the function should always be used when it
1953	* necessary to check for valid coordinates.	1247	* necessary to check for valid coordinates.
1954	* This function will recursively call itself for the	1248	* This function will recursively call itself for the
1955	* tiled maps.	1249	* tiled maps.
1956	*	1250	*/
1957	*	1251	int
1958	*/
1959	int out_of_map(mapstruct *m, int x, int y)	1252	out_of_map (maptile *m, int x, int y)
1960	{	1253	{
1961
1962	/* If we get passed a null map, this is obviously the	1254	/* If we get passed a null map, this is obviously the
1963	* case. This generally shouldn't happen, but if the	1255	* case. This generally shouldn't happen, but if the
1964	* map loads fail below, it could happen.	1256	* map loads fail below, it could happen.
1965	*/	1257	*/
1966	if (!m) return 0;	1258	if (!m)
1967
1968	if (x<0) {
1969	if (!m->tile_path[3]) return 1;
1970	if (!m->tile_map[3] || m->tile_map[3]->in_memory != MAP_IN_MEMORY) {
1971	load_and_link_tiled_map(m, 3);
1972	}
1973	return (out_of_map(m->tile_map[3], x + MAP_WIDTH(m->tile_map[3]), y));
1974	}
1975	if (x>=MAP_WIDTH(m)) {
1976	if (!m->tile_path[1]) return 1;
1977	if (!m->tile_map[1] || m->tile_map[1]->in_memory != MAP_IN_MEMORY) {
1978	load_and_link_tiled_map(m, 1);
1979	}
1980	return (out_of_map(m->tile_map[1], x - MAP_WIDTH(m), y));
1981	}
1982	if (y<0) {
1983	if (!m->tile_path[0]) return 1;
1984	if (!m->tile_map[0] || m->tile_map[0]->in_memory != MAP_IN_MEMORY) {
1985	load_and_link_tiled_map(m, 0);
1986	}
1987	return (out_of_map(m->tile_map[0], x, y + MAP_HEIGHT(m->tile_map[0])));
1988	}
1989	if (y>=MAP_HEIGHT(m)) {
1990	if (!m->tile_path[2]) return 1;
1991	if (!m->tile_map[2] || m->tile_map[2]->in_memory != MAP_IN_MEMORY) {
1992	load_and_link_tiled_map(m, 2);
1993	}
1994	return (out_of_map(m->tile_map[2], x, y - MAP_HEIGHT(m)));
1995	}
1996
1997	/* Simple case - coordinates are within this local
1998	* map.
1999	*/
2000	return 0;	1259	return 0;
		1260
		1261	if (x < 0)
		1262	{
		1263	if (!m->tile_available (3))
		1264	return 1;
		1265
		1266	return out_of_map (m->tile_map[3], x + m->tile_map[3]->width, y);
		1267	}
		1268
		1269	if (x >= m->width)
		1270	{
		1271	if (!m->tile_available (1))
		1272	return 1;
		1273
		1274	return out_of_map (m->tile_map[1], x - m->width, y);
		1275	}
		1276
		1277	if (y < 0)
		1278	{
		1279	if (!m->tile_available (0))
		1280	return 1;
		1281
		1282	return out_of_map (m->tile_map[0], x, y + m->tile_map[0]->height);
		1283	}
		1284
		1285	if (y >= m->height)
		1286	{
		1287	if (!m->tile_available (2))
		1288	return 1;
		1289
		1290	return out_of_map (m->tile_map[2], x, y - m->height);
		1291	}
		1292
		1293	/* Simple case - coordinates are within this local
		1294	* map.
		1295	*/
		1296	return 0;
2001	}	1297	}
2002		1298
2003	/* This is basically the same as out_of_map above, but	1299	/* This is basically the same as out_of_map above, but
2004	* instead we return NULL if no map is valid (coordinates	1300	* instead we return NULL if no map is valid (coordinates
2005	* out of bounds and no tiled map), otherwise it returns	1301	* out of bounds and no tiled map), otherwise it returns
2006	* the map as that the coordinates are really on, and	1302	* the map as that the coordinates are really on, and
2007	* updates x and y to be the localized coordinates.	1303	* updates x and y to be the localised coordinates.
2008	* Using this is more efficient of calling out_of_map	1304	* Using this is more efficient of calling out_of_map
2009	* and then figuring out what the real map is	1305	* and then figuring out what the real map is
2010	*/	1306	*/
2011	mapstruct *get_map_from_coord(mapstruct *m, sint16 *x, sint16 *y)	1307	maptile *
		1308	maptile::xy_find (sint16 &x, sint16 &y)
2012	{	1309	{
2013		1310	if (x < 0)
2014	if (*x<0) {
2015	if (!m->tile_path[3]) return NULL;
2016	if (!m->tile_map[3] || m->tile_map[3]->in_memory != MAP_IN_MEMORY)
2017	load_and_link_tiled_map(m, 3);
2018
2019	*x += MAP_WIDTH(m->tile_map[3]);
2020	return (get_map_from_coord(m->tile_map[3], x, y));
2021	}	1311	{
2022	if (*x>=MAP_WIDTH(m)) {	1312	if (!tile_available (3))
2023	if (!m->tile_path[1]) return NULL;	1313	return 0;
2024	if (!m->tile_map[1] || m->tile_map[1]->in_memory != MAP_IN_MEMORY)
2025	load_and_link_tiled_map(m, 1);
2026		1314
2027	*x -= MAP_WIDTH(m);	1315	x += tile_map[3]->width;
2028	return (get_map_from_coord(m->tile_map[1], x, y));	1316	return tile_map[3]->xy_find (x, y);
		1317	}
		1318
		1319	if (x >= width)
2029	}	1320	{
2030	if (*y<0) {	1321	if (!tile_available (1))
2031	if (!m->tile_path[0]) return NULL;	1322	return 0;
2032	if (!m->tile_map[0] || m->tile_map[0]->in_memory != MAP_IN_MEMORY)
2033	load_and_link_tiled_map(m, 0);
2034		1323
2035	*y += MAP_HEIGHT(m->tile_map[0]);	1324	x -= width;
2036	return (get_map_from_coord(m->tile_map[0], x, y));	1325	return tile_map[1]->xy_find (x, y);
		1326	}
		1327
		1328	if (y < 0)
2037	}	1329	{
2038	if (*y>=MAP_HEIGHT(m)) {	1330	if (!tile_available (0))
2039	if (!m->tile_path[2]) return NULL;	1331	return 0;
2040	if (!m->tile_map[2] || m->tile_map[2]->in_memory != MAP_IN_MEMORY)
2041	load_and_link_tiled_map(m, 2);
2042		1332
2043	*y -= MAP_HEIGHT(m);	1333	y += tile_map[0]->height;
2044	return (get_map_from_coord(m->tile_map[2], x, y));	1334	return tile_map[0]->xy_find (x, y);
		1335	}
		1336
		1337	if (y >= height)
2045	}	1338	{
		1339	if (!tile_available (2))
		1340	return 0;
2046		1341
		1342	y -= height;
		1343	return tile_map[2]->xy_find (x, y);
		1344	}
		1345
2047	/* Simple case - coordinates are within this local	1346	/* Simple case - coordinates are within this local
2048	* map.	1347	* map.
2049	*/	1348	*/
2050		1349	return this;
2051	return m;
2052	}	1350	}
2053		1351
2054	/**	1352	/**
2055	* Return whether map2 is adjacent to map1. If so, store the distance from	1353	* Return whether map2 is adjacent to map1. If so, store the distance from
2056	* map1 to map2 in dx/dy.	1354	* map1 to map2 in dx/dy.
2057	*/	1355	*/
		1356	int
2058	static int adjacent_map(const mapstruct *map1, const mapstruct *map2, int *dx, int *dy) {	1357	adjacent_map (const maptile *map1, const maptile *map2, int *dx, int *dy)
		1358	{
2059	if (!map1 || !map2)	1359	if (!map1 || !map2)
2060	return 0;	1360	return 0;
2061		1361
		1362	//TODO: this doesn't actually check correctly when intermediate maps are not loaded
		1363	//fix: compare paths instead (this is likely faster, too!)
2062	if (map1 == map2) {	1364	if (map1 == map2)
		1365	{
2063	*dx = 0;	1366	*dx = 0;
2064	*dy = 0;	1367	*dy = 0;
2065		1368	}
2066	} else if (map1->tile_map[0] == map2) { /* up */	1369	else if (map1->tile_map[0] == map2)
		1370	{ /* up */
2067	*dx = 0;	1371	*dx = 0;
2068	*dy = -MAP_HEIGHT(map2);	1372	*dy = -map2->height;
		1373	}
2069	} else if (map1->tile_map[1] == map2) { /* right */	1374	else if (map1->tile_map[1] == map2)
2070	*dx = MAP_WIDTH(map1);	1375	{ /* right */
		1376	*dx = map1->width;
2071	*dy = 0;	1377	*dy = 0;
		1378	}
2072	} else if (map1->tile_map[2] == map2) { /* down */	1379	else if (map1->tile_map[2] == map2)
		1380	{ /* down */
2073	*dx = 0;	1381	*dx = 0;
2074	*dy = MAP_HEIGHT(map1);	1382	*dy = map1->height;
		1383	}
2075	} else if (map1->tile_map[3] == map2) { /* left */	1384	else if (map1->tile_map[3] == map2)
2076	*dx = -MAP_WIDTH(map2);	1385	{ /* left */
		1386	*dx = -map2->width;
2077	*dy = 0;	1387	*dy = 0;
2078		1388	}
2079	} else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[1] == map2) { /* up right */	1389	else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[1] == map2)
		1390	{ /* up right */
2080	*dx = MAP_WIDTH(map1->tile_map[0]);	1391	*dx = map1->tile_map[0]->width;
2081	*dy = -MAP_HEIGHT(map1->tile_map[0]);	1392	*dy = -map1->tile_map[0]->height;
		1393	}
2082	} else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[3] == map2) { /* up left */	1394	else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[3] == map2)
2083	*dx = -MAP_WIDTH(map2);	1395	{ /* up left */
2084	*dy = -MAP_HEIGHT(map1->tile_map[0]);	1396	*dx = -map2->width;
		1397	*dy = -map1->tile_map[0]->height;
		1398	}
2085	} else if (map1->tile_map[1] && map1->tile_map[1]->tile_map[0] == map2) { /* right up */	1399	else if (map1->tile_map[1] && map1->tile_map[1]->tile_map[0] == map2)
2086	*dx = MAP_WIDTH(map1);	1400	{ /* right up */
2087	*dy = -MAP_HEIGHT(map2);	1401	*dx = map1->width;
		1402	*dy = -map2->height;
		1403	}
2088	} else if (map1->tile_map[1] && map1->tile_map[1]->tile_map[2] == map2) { /* right down */	1404	else if (map1->tile_map[1] && map1->tile_map[1]->tile_map[2] == map2)
2089	*dx = MAP_WIDTH(map1);	1405	{ /* right down */
2090	*dy = MAP_HEIGHT(map1->tile_map[1]);	1406	*dx = map1->width;
		1407	*dy = map1->tile_map[1]->height;
		1408	}
2091	} else if (map1->tile_map[2] && map1->tile_map[2]->tile_map[1] == map2) { /* down right */	1409	else if (map1->tile_map[2] && map1->tile_map[2]->tile_map[1] == map2)
		1410	{ /* down right */
2092	*dx = MAP_WIDTH(map1->tile_map[2]);	1411	*dx = map1->tile_map[2]->width;
2093	*dy = MAP_HEIGHT(map1);	1412	*dy = map1->height;
		1413	}
2094	} else if (map1->tile_map[2] && map1->tile_map[2]->tile_map[3] == map2) { /* down left */	1414	else if (map1->tile_map[2] && map1->tile_map[2]->tile_map[3] == map2)
2095	*dx = -MAP_WIDTH(map2);	1415	{ /* down left */
2096	*dy = MAP_HEIGHT(map1);	1416	*dx = -map2->width;
		1417	*dy = map1->height;
		1418	}
2097	} else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[0] == map2) { /* left up */	1419	else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[0] == map2)
		1420	{ /* left up */
2098	*dx = -MAP_WIDTH(map1->tile_map[3]);	1421	*dx = -map1->tile_map[3]->width;
2099	*dy = -MAP_HEIGHT(map2);	1422	*dy = -map2->height;
		1423	}
2100	} else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[2] == map2) { /* left down */	1424	else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[2] == map2)
		1425	{ /* left down */
2101	*dx = -MAP_WIDTH(map1->tile_map[3]);	1426	*dx = -map1->tile_map[3]->width;
2102	*dy = MAP_HEIGHT(map1->tile_map[3]);	1427	*dy = map1->tile_map[3]->height;
2103
2104	} else { /* not "adjacent" enough */
2105	return 0;
2106	}	1428	}
2107		1429	else
2108	return 1;	1430	return 0;
		1431
		1432	return 1;
		1433	}
		1434
		1435	maptile *
		1436	maptile::xy_load (sint16 &x, sint16 &y)
		1437	{
		1438	maptile *map = xy_find (x, y);
		1439
		1440	if (map)
		1441	map->load_sync ();
		1442
		1443	return map;
		1444	}
		1445
		1446	maptile *
		1447	get_map_from_coord (maptile *m, sint16 *x, sint16 *y)
		1448	{
		1449	return m->xy_load (*x, *y);
2109	}	1450	}
2110		1451
2111	/* From map.c	1452	/* From map.c
2112	* This is used by get_player to determine where the other	1453	* This is used by get_player to determine where the other
2113	* creature is. get_rangevector takes into account map tiling,	1454	* creature is. get_rangevector takes into account map tiling,
2114	* so you just can not look the the map coordinates and get the	1455	* so you just can not look the the map coordinates and get the
2115	* righte value. distance_x/y are distance away, which	1456	* righte value. distance_x/y are distance away, which
2116	* can be negativbe. direction is the crossfire direction scheme	1457	* can be negative. direction is the crossfire direction scheme
2117	* that the creature should head. part is the part of the	1458	* that the creature should head. part is the part of the
2118	* monster that is closest.	1459	* monster that is closest.
2119	*	1460	*
2120	* get_rangevector looks at op1 and op2, and fills in the	1461	* get_rangevector looks at op1 and op2, and fills in the
2121	* structure for op1 to get to op2.	1462	* structure for op1 to get to op2.
…		…
2126	* be unexpected	1467	* be unexpected
2127	*	1468	*
2128	* currently, the only flag supported (0x1) is don't translate for	1469	* currently, the only flag supported (0x1) is don't translate for
2129	* closest body part of 'op1'	1470	* closest body part of 'op1'
2130	*/	1471	*/
2131		1472	void
2132	void get_rangevector(object *op1, object *op2, rv_vector *retval, int flags) {	1473	get_rangevector (object *op1, object *op2, rv_vector * retval, int flags)
		1474	{
2133	if (!adjacent_map(op1->map, op2->map, &retval->distance_x, &retval->distance_y)) {	1475	if (!adjacent_map (op1->map, op2->map, &retval->distance_x, &retval->distance_y))
		1476	{
2134	/* be conservative and fill in _some_ data */	1477	/* be conservative and fill in _some_ data */
2135	retval->distance = 100000;	1478	retval->distance = 10000;
2136	retval->distance_x = 32767;	1479	retval->distance_x = 10000;
2137	retval->distance_y = 32767;	1480	retval->distance_y = 10000;
2138	retval->direction = 0;	1481	retval->direction = 0;
2139	retval->part = 0;	1482	retval->part = 0;
2140	} else {	1483	}
		1484	else
		1485	{
2141	object *best;	1486	object *best;
2142		1487
2143	retval->distance_x += op2->x-op1->x;	1488	retval->distance_x += op2->x - op1->x;
2144	retval->distance_y += op2->y-op1->y;	1489	retval->distance_y += op2->y - op1->y;
2145		1490
2146	best = op1;	1491	best = op1;
2147	/* If this is multipart, find the closest part now */	1492	/* If this is multipart, find the closest part now */
2148	if (!(flags&0x1) && op1->more) {	1493	if (!(flags & 0x1) && op1->more)
2149	object *tmp;	1494	{
2150	int best_distance = retval->distance_x*retval->distance_x+	1495	int best_distance = retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y, tmpi;
2151	retval->distance_y*retval->distance_y, tmpi;
2152		1496
2153	/* we just take the offset of the piece to head to figure	1497	/* we just take the offset of the piece to head to figure
2154	* distance instead of doing all that work above again	1498	* distance instead of doing all that work above again
2155	* since the distance fields we set above are positive in the	1499	* since the distance fields we set above are positive in the
2156	* same axis as is used for multipart objects, the simply arithmetic	1500	* same axis as is used for multipart objects, the simply arithmetic
2157	* below works.	1501	* below works.
2158	*/	1502	*/
2159	for (tmp = op1->more; tmp != NULL; tmp = tmp->more) {	1503	for (object *tmp = op1->more; tmp; tmp = tmp->more)
		1504	{
2160	tmpi = (op1->x-tmp->x+retval->distance_x)*(op1->x-tmp->x+retval->distance_x)+	1505	tmpi = (op1->x - tmp->x + retval->distance_x) * (op1->x - tmp->x + retval->distance_x) +
2161	(op1->y-tmp->y+retval->distance_y)*(op1->y-tmp->y+retval->distance_y);	1506	(op1->y - tmp->y + retval->distance_y) * (op1->y - tmp->y + retval->distance_y);
2162	if (tmpi < best_distance) {	1507	if (tmpi < best_distance)
		1508	{
2163	best_distance = tmpi;	1509	best_distance = tmpi;
2164	best = tmp;	1510	best = tmp;
2165	}	1511	}
2166	}	1512	}
		1513
2167	if (best != op1) {	1514	if (best != op1)
		1515	{
2168	retval->distance_x += op1->x-best->x;	1516	retval->distance_x += op1->x - best->x;
2169	retval->distance_y += op1->y-best->y;	1517	retval->distance_y += op1->y - best->y;
2170	}	1518	}
2171	}	1519	}
		1520
2172	retval->part = best;	1521	retval->part = best;
2173	retval->distance = isqrt(retval->distance_x*retval->distance_x+retval->distance_y*retval->distance_y);	1522	retval->distance = upos_max (abs (retval->distance_x), abs (retval->distance_y));
2174	retval->direction = find_dir_2(-retval->distance_x, -retval->distance_y);	1523	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);
2175	}	1524	}
2176	}	1525	}
2177		1526
2178	/* this is basically the same as get_rangevector above, but instead of	1527	/* this is basically the same as get_rangevector above, but instead of
2179	* the first parameter being an object, it instead is the map	1528	* the first parameter being an object, it instead is the map
…		…
2183	* flags has no meaning for this function at this time - I kept it in to	1532	* flags has no meaning for this function at this time - I kept it in to
2184	* be more consistant with the above function and also in case they are needed	1533	* be more consistant with the above function and also in case they are needed
2185	* for something in the future. Also, since no object is pasted, the best	1534	* for something in the future. Also, since no object is pasted, the best
2186	* field of the rv_vector is set to NULL.	1535	* field of the rv_vector is set to NULL.
2187	*/	1536	*/
2188		1537	void
2189	void get_rangevector_from_mapcoord(const mapstruct *m, int x, int y, const object *op2, rv_vector *retval, int flags) {	1538	get_rangevector_from_mapcoord (const maptile *m, int x, int y, const object *op2, rv_vector *retval, int flags)
		1539	{
2190	if (!adjacent_map(m, op2->map, &retval->distance_x, &retval->distance_y)) {	1540	if (!adjacent_map (m, op2->map, &retval->distance_x, &retval->distance_y))
		1541	{
2191	/* be conservative and fill in _some_ data */	1542	/* be conservative and fill in _some_ data */
2192	retval->distance = 100000;	1543	retval->distance = 100000;
2193	retval->distance_x = 32767;	1544	retval->distance_x = 32767;
2194	retval->distance_y = 32767;	1545	retval->distance_y = 32767;
2195	retval->direction = 0;	1546	retval->direction = 0;
2196	retval->part = 0;	1547	retval->part = 0;
2197	} else {	1548	}
		1549	else
		1550	{
2198	retval->distance_x += op2->x-x;	1551	retval->distance_x += op2->x - x;
2199	retval->distance_y += op2->y-y;	1552	retval->distance_y += op2->y - y;
2200		1553
2201	retval->part = NULL;	1554	retval->part = NULL;
2202	retval->distance = isqrt(retval->distance_x*retval->distance_x+retval->distance_y*retval->distance_y);	1555	retval->distance = idistance (retval->distance_x, retval->distance_y);
2203	retval->direction = find_dir_2(-retval->distance_x, -retval->distance_y);	1556	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);
2204	}	1557	}
2205	}	1558	}
2206		1559
2207	/* Returns true of op1 and op2 are effectively on the same map	1560	/* Returns true of op1 and op2 are effectively on the same map
2208	* (as related to map tiling). Note that this looks for a path from	1561	* (as related to map tiling). Note that this looks for a path from
2209	* op1 to op2, so if the tiled maps are assymetric and op2 has a path	1562	* op1 to op2, so if the tiled maps are asymetric and op2 has a path
2210	* to op1, this will still return false.	1563	* to op1, this will still return false.
2211	* Note we only look one map out to keep the processing simple	1564	* Note we only look one map out to keep the processing simple
2212	* and efficient. This could probably be a macro.	1565	* and efficient. This could probably be a macro.
2213	* MSW 2001-08-05	1566	* MSW 2001-08-05
2214	*/	1567	*/
		1568	int
2215	int on_same_map(const object *op1, const object *op2) {	1569	on_same_map (const object *op1, const object *op2)
		1570	{
2216	int dx, dy;	1571	int dx, dy;
2217		1572
2218	return adjacent_map(op1->map, op2->map, &dx, &dy);	1573	return adjacent_map (op1->map, op2->map, &dx, &dy);
2219	}	1574	}
		1575
		1576	object *
		1577	maptile::insert (object *op, int x, int y, object *originator, int flags)
		1578	{
		1579	return insert_ob_in_map_at (op, this, originator, flags, x, y);
		1580	}
		1581
		1582	region *
		1583	maptile::region (int x, int y) const
		1584	{
		1585	if (regions
		1586	&& regionmap
		1587	&& !OUT_OF_REAL_MAP (this, x, y))
		1588	if (struct region *reg = regionmap [regions [y * width + x]])
		1589	return reg;
		1590
		1591	if (default_region)
		1592	return default_region;
		1593
		1594	return ::region::default_region ();
		1595	}
		1596
		1597	/* picks a random object from a style map.
		1598	*/
		1599	object *
		1600	maptile::pick_random_object (rand_gen &gen) const
		1601	{
		1602	/* while returning a null object will result in a crash, that
		1603	* is actually preferable to an infinite loop. That is because
		1604	* most servers will automatically restart in case of crash.
		1605	* Change the logic on getting the random space - shouldn't make
		1606	* any difference, but this seems clearer to me.
		1607	*/
		1608	for (int i = 1000; --i;)
		1609	{
		1610	object *pick = at (gen (width), gen (height)).bot;
		1611
		1612	// do not prefer big monsters just because they are big.
		1613	if (pick && pick->is_head ())
		1614	return pick->head_ ();
		1615	}
		1616
		1617	// instead of crashing in the unlikely(?) case, try to return *something*
		1618	return archetype::find ("bug");
		1619	}
		1620
		1621	void
		1622	maptile::play_sound (faceidx sound, int x, int y) const
		1623	{
		1624	if (!sound)
		1625	return;
		1626
		1627	for_all_players (pl)
		1628	if (pl->ob->map == this)
		1629	if (client *ns = pl->ns)
		1630	{
		1631	int dx = x - pl->ob->x;
		1632	int dy = y - pl->ob->y;
		1633
		1634	int distance = idistance (dx, dy);
		1635
		1636	if (distance <= MAX_SOUND_DISTANCE)
		1637	ns->play_sound (sound, dx, dy);
		1638	}
		1639	}
		1640

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