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Comparing deliantra/server/common/map.C (file contents):
Revision 1.3 by elmex, Tue Aug 15 17:35:50 2006 UTC vs.
Revision 1.189 by root, Sun Apr 18 05:54:18 2010 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 1.3 2006/08/15 17:35:50 elmex Exp $";	3	*
4	*/	4	* Copyright (©) 2005,2006,2007,2008,2009,2010 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 Mark Wedel & Crossfire Development Team
10	Copyright (C) 1992 Frank Tore Johansen	6	* Copyright (©) 1992 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 it under
13	it under the terms of the GNU General Public License as published by	9	* the terms of the Affero GNU General Public License as published by the
14	the Free Software Foundation; either version 2 of the License, or	10	* Free Software Foundation, either version 3 of the License, or (at your
15	(at your option) any later version.	11	* 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 Affero GNU General Public License
23	along with this program; if not, write to the Free Software	19	* and the GNU General Public License along with this program. If not, see
24	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	20	* <http://www.gnu.org/licenses/>.
25		21	*
26	The authors can be reached via e-mail at crossfire-devel@real-time.com	22	* The authors can be reached via e-mail to <support@deliantra.net>
27	*/	23	*/
28		24
29
30	#include <global.h>
31	#include <funcpoint.h>
32
33	#include <loader.h>
34	#ifndef WIN32 /* ---win32 exclude header */
35	#include <unistd.h>	25	#include <unistd.h>
36	#endif /* win32 */
37		26
		27	#include "global.h"
38	#include "path.h"	28	#include "path.h"
39		29
		30	//+GPL
40		31
41	extern int nrofallocobjects,nroffreeobjects;	32	sint8 maptile::outdoor_darkness;
42
43	void (*load_original_map_callback)(mapstruct *map);
44	void (*load_temporary_map_callback)(mapstruct *map);
45	void (*clean_temporary_map_callback)(mapstruct *map);
46
47	/*
48	* Returns the mapstruct which has a name matching the given argument.
49	* return NULL if no match is found.
50	*/
51
52	mapstruct *has_been_loaded (const char *name) {
53	mapstruct *map;
54
55	if (!name || !*name)
56	return 0;
57	for (map = first_map; map; map = map->next)
58	if (!strcmp (name, map->path))
59	break;
60	return (map);
61	}
62
63	/*
64	* This makes a path absolute outside the world of Crossfire.
65	* In other words, it prepends LIBDIR/MAPDIR/ to the given path
66	* and returns the pointer to a static array containing the result.
67	* it really should be called create_mapname
68	*/
69
70	const char *create_pathname (const char *name) {
71	static char buf[MAX_BUF];
72
73	/* Why? having extra / doesn't confuse unix anyplace? Dependancies
74	* someplace else in the code? msw 2-17-97
75	*/
76	if (*name == '/')
77	sprintf (buf, "%s/%s%s", settings.datadir, settings.mapdir, name);
78	else
79	sprintf (buf, "%s/%s/%s", settings.datadir, settings.mapdir, name);
80	return (buf);
81	}
82
83	/*
84	* same as create_pathname, but for the overlay maps.
85	*/
86
87	const char *create_overlay_pathname (const char *name) {
88	static char buf[MAX_BUF];
89
90	/* Why? having extra / doesn't confuse unix anyplace? Dependancies
91	* someplace else in the code? msw 2-17-97
92	*/
93	if (*name == '/')
94	sprintf (buf, "%s/%s%s", settings.localdir, settings.mapdir, name);
95	else
96	sprintf (buf, "%s/%s/%s", settings.localdir, settings.mapdir, name);
97	return (buf);
98	}
99
100	/*
101	* same as create_pathname, but for the template maps.
102	*/
103
104	const char *create_template_pathname (const char *name) {
105	static char buf[MAX_BUF];
106
107	/* Why? having extra / doesn't confuse unix anyplace? Dependancies
108	* someplace else in the code? msw 2-17-97
109	*/
110	if (*name == '/')
111	sprintf (buf, "%s/%s%s", settings.localdir, settings.templatedir, name);
112	else
113	sprintf (buf, "%s/%s/%s", settings.localdir, settings.templatedir, name);
114	return (buf);
115	}
116
117	/*
118	* This makes absolute path to the itemfile where unique objects
119	* will be saved. Converts '/' to '@'. I think it's essier maintain
120	* files than full directory structure, but if this is problem it can
121	* be changed.
122	*/
123	static const char *create_items_path (const char *s) {
124	static char buf[MAX_BUF];
125	char *t;
126
127	if (*s == '/')
128	s++;
129
130	sprintf (buf, "%s/%s/", settings.localdir, settings.uniquedir);
131
132	for (t=buf+strlen(buf); *s; s++,t++)
133	if (*s == '/')
134	*t = '@';
135	else
136	*t = *s;
137	*t = 0;
138	return (buf);
139	}
140
141
142	/*
143	* This function checks if a file with the given path exists.
144	* -1 is returned if it fails, otherwise the mode of the file
145	* is returned.
146	* It tries out all the compression suffixes listed in the uncomp[] array.
147	*
148	* If prepend_dir is set, then we call create_pathname (which prepends
149	* libdir & mapdir). Otherwise, we assume the name given is fully
150	* complete.
151	* Only the editor actually cares about the writablity of this -
152	* the rest of the code only cares that the file is readable.
153	* when the editor goes away, the call to stat should probably be
154	* replaced by an access instead (similar to the windows one, but
155	* that seems to be missing the prepend_dir processing
156	*/
157
158	int check_path (const char *name, int prepend_dir)
159	{
160	char buf[MAX_BUF];
161	#ifndef WIN32
162	char *endbuf;
163	struct stat statbuf;
164	int mode = 0, i;
165	#endif
166
167	if (prepend_dir)
168	strcpy (buf, create_pathname(name));
169	else
170	strcpy(buf, name);
171	#ifdef WIN32 /* ***win32: check this sucker in windows style. */
172	return(_access(buf,0));
173	#else
174
175	/* old method (strchr(buf, '\0')) seemd very odd to me -
176	* this method should be equivalant and is clearer.
177	* Can not use strcat because we need to cycle through
178	* all the names.
179	*/
180	endbuf = buf + strlen(buf);
181
182	for (i = 0; i < NROF_COMPRESS_METHODS; i++) {
183	if (uncomp[i][0])
184	strcpy(endbuf, uncomp[i][0]);
185	else
186	*endbuf = '\0';
187	if (!stat (buf, &statbuf))
188	break;
189	}
190	if (i == NROF_COMPRESS_METHODS)
191	return (-1);
192	if (!S_ISREG (statbuf.st_mode))
193	return (-1);
194
195	if (((statbuf.st_mode & S_IRGRP) && getegid() == statbuf.st_gid) ||
196	((statbuf.st_mode & S_IRUSR) && geteuid() == statbuf.st_uid) ||
197	(statbuf.st_mode & S_IROTH))
198	mode |= 4;
199
200	if ((statbuf.st_mode & S_IWGRP && getegid() == statbuf.st_gid) ||
201	(statbuf.st_mode & S_IWUSR && geteuid() == statbuf.st_uid) ||
202	(statbuf.st_mode & S_IWOTH))
203	mode |= 2;
204
205	return (mode);
206	#endif
207	}
208
209	/*
210	* Prints out debug-information about a map.
211	* Dumping these at llevError doesn't seem right, but is
212	* necessary to make sure the information is in fact logged.
213	*/
214
215	void dump_map(const mapstruct *m) {
216	LOG(llevError,"Map %s status: %d.\n",m->path,m->in_memory);
217	LOG(llevError,"Size: %dx%d Start: %d,%d\n",
218	MAP_WIDTH(m), MAP_HEIGHT(m),
219	MAP_ENTER_X(m), MAP_ENTER_Y(m));
220
221	if(m->msg!=NULL)
222	LOG(llevError,"Message:\n%s",m->msg);
223
224	if(m->maplore!=NULL)
225	LOG(llevError,"Lore:\n%s",m->maplore);
226
227	if(m->tmpname!=NULL)
228	LOG(llevError,"Tmpname: %s\n",m->tmpname);
229
230	LOG(llevError,"Difficulty: %d\n",m->difficulty);
231	LOG(llevError,"Darkness: %d\n",m->darkness);
232	}
233
234	/*
235	* Prints out debug-information about all maps.
236	* This basically just goes through all the maps and calls
237	* dump_map on each one.
238	*/
239
240	void dump_all_maps(void) {
241	mapstruct *m;
242	for(m=first_map;m!=NULL;m=m->next) {
243	dump_map(m);
244	}
245	}
246		33
247	/* This rolls up wall, blocks_magic, blocks_view, etc, all into	34	/* This rolls up wall, blocks_magic, blocks_view, etc, all into
248	* one function that just returns a P_.. value (see map.h)	35	* one function that just returns a P_.. value (see map.h)
249	* it will also do map translation for tiled maps, returning	36	* it will also do map translation for tiled maps, returning
250	* new values into newmap, nx, and ny. Any and all of those	37	* new values into newmap, nx, and ny. Any and all of those
…		…
252	* by a P_NEW_MAP value, another call to get_map_from_coord	39	* by a P_NEW_MAP value, another call to get_map_from_coord
253	* is needed. The case of not passing values is if we're just	40	* is needed. The case of not passing values is if we're just
254	* checking for the existence of something on those spaces, but	41	* checking for the existence of something on those spaces, but
255	* don't expect to insert/remove anything from those spaces.	42	* don't expect to insert/remove anything from those spaces.
256	*/	43	*/
		44	int
257	int get_map_flags(mapstruct *oldmap, mapstruct **newmap, sint16 x, sint16 y, sint16 *nx, sint16 *ny)	45	get_map_flags (maptile *oldmap, maptile **newmap, sint16 x, sint16 y, sint16 *nx, sint16 *ny)
258	{	46	{
259	sint16 newx, newy;
260	int retval=0;
261	mapstruct *mp;
262
263	if (out_of_map(oldmap, x, y)) return P_OUT_OF_MAP;
264	newx = x;	47	sint16 newx = x;
265	newy = y;	48	sint16 newy = y;
		49
266	mp = get_map_from_coord(oldmap, &newx, &newy);	50	maptile *mp = get_map_from_coord (oldmap, &newx, &newy);
267	if (mp != oldmap)	51
268	retval |= P_NEW_MAP;	52	if (!mp)
		53	return P_OUT_OF_MAP;
		54
269	if (newmap) *newmap = mp;	55	if (newmap) *newmap = mp;
270	if (nx) *nx = newx;	56	if (nx) *nx = newx;
271	if (ny) *ny = newy;	57	if (ny) *ny = newy;
272	retval |= mp->spaces[newx + mp->width * newy].flags;
273		58
274	if (retval & P_SAFE)	59	return mp->at (newx, newy).flags () | (mp != oldmap ? P_NEW_MAP : 0);
275	retval |= P_NO_MAGIC | P_NO_CLERIC; // P_SAFE does imply these
276
277	return retval;
278	}	60	}
279
280		61
281	/*	62	/*
282	* Returns true if the given coordinate is blocked except by the	63	* Returns true if the given coordinate is blocked except by the
283	* object passed is not blocking. This is used with	64	* object passed is not blocking. This is used with
284	* multipart monsters - if we want to see if a 2x2 monster	65	* multipart monsters - if we want to see if a 2x2 monster
…		…
288	* monster.	69	* monster.
289	* m, x, y are the target map/coordinates - needed for map tiling.	70	* m, x, y are the target map/coordinates - needed for map tiling.
290	* the coordinates & map passed in should have been updated for tiling	71	* the coordinates & map passed in should have been updated for tiling
291	* by the caller.	72	* by the caller.
292	*/	73	*/
293		74	int
294	int blocked_link(object *ob, mapstruct *m, int sx, int sy) {	75	blocked_link (object *ob, maptile *m, int sx, int sy)
295	object *tmp;	76	{
296	int mflags, blocked;
297
298	/* Make sure the coordinates are valid - they should be, as caller should	77	/* Make sure the coordinates are valid - they should be, as caller should
299	* have already checked this.	78	* have already checked this.
300	*/	79	*/
301	if (OUT_OF_REAL_MAP(m, sx, sy)) {	80	if (OUT_OF_REAL_MAP (m, sx, sy))
		81	{
302	LOG(llevError,"blocked_link: Passed map, x, y coordinates outside of map\n");	82	LOG (llevError, "blocked_link: Passed map, x, y coordinates outside of map\n");
303	return 1;	83	return 1;
304	}	84	}
305		85
306	/* Save some cycles - instead of calling get_map_flags(), just get the value	86	mapspace &ms = m->at (sx, sy);
307	* directly.
308	*/
309	mflags = m->spaces[sx + m->width * sy].flags;
310		87
311	blocked = GET_MAP_MOVE_BLOCK(m, sx, sy);	88	int mflags = ms.flags ();
		89	int blocked = ms.move_block;
312		90
313	/* If space is currently not blocked by anything, no need to	91	/* If space is currently not blocked by anything, no need to
314	* go further. Not true for players - all sorts of special	92	* go further. Not true for players - all sorts of special
315	* things we need to do for players.	93	* things we need to do for players.
316	*/	94	*/
317	if (ob->type != PLAYER && ! (mflags & P_IS_ALIVE) && (blocked==0)) return 0;	95	if (ob->type != PLAYER && !(mflags & P_IS_ALIVE) && (blocked == 0))
318
319	/* if there isn't anytyhing alive on this space, and this space isn't
320	* otherwise blocked, we can return now. Only if there is a living
321	* creature do we need to investigate if it is part of this creature
322	* or another. Likewise, only if something is blocking us do we
323	* need to investigate if there is a special circumstance that would
324	* let the player through (inventory checkers for example)
325	*/
326	if (!(mflags & P_IS_ALIVE) && !OB_TYPE_MOVE_BLOCK(ob, blocked)) return 0;
327
328	if(ob->head != NULL)
329	ob=ob->head;
330
331	/* We basically go through the stack of objects, and if there is
332	* some other object that has NO_PASS or FLAG_ALIVE set, return
333	* true. If we get through the entire stack, that must mean
334	* ob is blocking it, so return 0.
335	*/
336	for(tmp = GET_MAP_OB(m,sx,sy); tmp!= NULL; tmp = tmp->above) {
337
338	/* This must be before the checks below. Code for inventory checkers. */
339	if (tmp->type==CHECK_INV && OB_MOVE_BLOCK(ob, tmp)) {
340	/* If last_sp is set, the player/monster needs an object,
341	* so we check for it. If they don't have it, they can't
342	* pass through this space.
343	*/
344	if (tmp->last_sp) {
345	if (check_inv_recursive(ob,tmp)==NULL)
346	return 1;
347	else
348	continue;
349	} else {
350	/* In this case, the player must not have the object -
351	* if they do, they can't pass through.
352	*/
353	if (check_inv_recursive(ob,tmp)!=NULL) /* player has object */
354	return 1;
355	else
356	continue;
357	}
358	} /* if check_inv */
359	else {
360	/* Broke apart a big nasty if into several here to make
361	* this more readable. first check - if the space blocks
362	* movement, can't move here.
363	* second - if a monster, can't move there, unles it is a
364	* hidden dm
365	*/
366	if (OB_MOVE_BLOCK(ob, tmp)) return 1;
367	if (QUERY_FLAG(tmp,FLAG_ALIVE) && tmp->head != ob && tmp != ob &&
368	tmp->type != DOOR && !(QUERY_FLAG(tmp,FLAG_WIZ) && tmp->contr->hidden))
369	return 1;
370	}
371
372	}
373	return 0;	96	return 0;
374	}
375		97
		98	/* if there isn't anything alive on this space, and this space isn't
		99	* otherwise blocked, we can return now. Only if there is a living
		100	* creature do we need to investigate if it is part of this creature
		101	* or another. Likewise, only if something is blocking us do we
		102	* need to investigate if there is a special circumstance that would
		103	* let the player through (inventory checkers for example)
		104	*/
		105	if (!(mflags & P_IS_ALIVE) && !OB_TYPE_MOVE_BLOCK (ob, blocked))
		106	return 0;
		107
		108	ob = ob->head_ ();
		109
		110	/* We basically go through the stack of objects, and if there is
		111	* some other object that has NO_PASS or FLAG_ALIVE set, return
		112	* true. If we get through the entire stack, that must mean
		113	* ob is blocking it, so return 0.
		114	*/
		115	for (object *tmp = ms.top; tmp; tmp = tmp->below)
		116	{
		117	if (OB_MOVE_BLOCK (ob, tmp))
		118	{
		119	if (INVOKE_OBJECT (BLOCKED_MOVE, tmp, ob))
		120	if (RESULT_INT (0))
		121	return 1;
		122	else
		123	continue;
		124
		125	if (tmp->type == CHECK_INV)
		126	{
		127	bool have = check_inv_recursive (ob, tmp);
		128
		129	// last_sp set means we block if we don't have.
		130	if (logical_xor (have, tmp->last_sp))
		131	return 1;
		132	}
		133	else if (tmp->type == T_MATCH)
		134	{
		135	// T_MATCH allows "entrance" iff the match is true
		136	// == blocks if the match fails
		137
		138	// we could have used an INVOKE_OBJECT, but decided against it, as we
		139	// assume that T_MATCH is relatively common.
		140	if (!match (tmp->slaying, ob, tmp, ob))
		141	return 1;
		142	}
		143	else
		144	return 1; // unconditional block
		145
		146	} else {
		147	// space does not block the ob, directly, but
		148	// anything alive that is not a door still
		149	// blocks anything
		150
		151	if (tmp->flag [FLAG_ALIVE]
		152	&& tmp->type != DOOR
		153	&& tmp->head_ () != ob) //TODO: maybe move these check up?
		154	return 1;
		155	}
		156	}
		157
		158	return 0;
		159	}
376		160
377	/*	161	/*
378	* Returns true if the given object can't fit in the given spot.	162	* Returns the blocking object if the given object can't fit in the given
379	* This is meant for multi space objects - for single space objecs,	163	* spot. This is meant for multi space objects - for single space objecs,
380	* just calling get_map_blocked and checking that against movement type	164	* just calling get_map_blocked and checking that against movement type
381	* of object. This function goes through all the parts of the	165	* of object. This function goes through all the parts of the multipart
382	* multipart object and makes sure they can be inserted.	166	* object and makes sure they can be inserted.
383	*	167	*
384	* While this doesn't call out of map, the get_map_flags does.	168	* While this doesn't call out of map, the get_map_flags does.
385	*	169	*
386	* This function has been used to deprecate arch_out_of_map -	170	* This function has been used to deprecate arch_out_of_map -
387	* this function also does that check, and since in most cases,	171	* this function also does that check, and since in most cases,
…		…
398	*	182	*
399	* Note this used to be arch_blocked, but with new movement	183	* Note this used to be arch_blocked, but with new movement
400	* code, we need to have actual object to check its move_type	184	* code, we need to have actual object to check its move_type
401	* against the move_block values.	185	* against the move_block values.
402	*/	186	*/
403		187	bool
404	int ob_blocked(const object *ob,mapstruct *m,sint16 x,sint16 y) {	188	object::blocked (maptile *m, int x, int y) const
405	archetype *tmp;	189	{
406	int flag;	190	for (archetype *tmp = arch; tmp; tmp = (archetype *)tmp->more)
407	mapstruct *m1;
408	sint16 sx, sy;
409
410	if(ob==NULL) {
411	flag= get_map_flags(m,&m1, x,y, &sx, &sy);
412	if (flag & P_OUT_OF_MAP) return P_OUT_OF_MAP;
413
414	/* don't have object, so don't know what types would block */
415	return(GET_MAP_MOVE_BLOCK(m1, sx, sy));
416	}	191	{
		192	mapxy pos (m, x + tmp->x, y + tmp->y);
417		193
418	for(tmp=ob->arch; tmp!=NULL;tmp=tmp->more) {	194	if (!pos.normalise ())
419	flag = get_map_flags(m, &m1, x+tmp->clone.x,y+tmp->clone.y, &sx, &sy);	195	return 1;
420		196
421	if (flag & P_OUT_OF_MAP) return P_OUT_OF_MAP;	197	mapspace &ms = *pos;
422	if (flag & P_IS_ALIVE) return P_IS_ALIVE;
423		198
424	/* find_first_free_spot() calls this function. However, often	199	if (ms.flags () & P_IS_ALIVE)
425	* ob doesn't have any move type (when used to place exits)	200	return 1;
		201
		202	/* However, often ob doesn't have any move type
		203	* (signifying non-moving objects)
426	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.	204	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.
427	*/	205	*/
		206	if (!move_type && ms.move_block != MOVE_ALL)
		207	continue;
428		208
429	if (ob->move_type == 0 && GET_MAP_MOVE_BLOCK(m1, sx, sy) != MOVE_ALL) continue;
430
431	/* Note it is intentional that we check ob - the movement type of the	209	/* Note it is intentional that we check ob - the movement type of the
432	* head of the object should correspond for the entire object.	210	* head of the object should correspond for the entire object.
433	*/	211	*/
434	if (OB_TYPE_MOVE_BLOCK(ob, GET_MAP_MOVE_BLOCK(m1, sx, sy)))	212	if (ms.blocks (move_type))
435	return AB_NO_PASS;	213	return 1;
436
437	}	214	}
		215
438	return 0;	216	return 0;
439	}	217	}
440		218
441	/* When the map is loaded, load_object does not actually insert objects	219	//-GPL
442	* into inventory, but just links them. What this does is go through
443	* and insert them properly.
444	* The object 'container' is the object that contains the inventory.
445	* This is needed so that we can update the containers weight.
446	*/
447		220
448	void fix_container(object *container)	221	void
		222	maptile::set_object_flag (int flag, int value)
449	{	223	{
450	object *tmp=container->inv, *next;	224	if (!spaces)
		225	return;
451		226
452	container->inv=NULL;	227	for (mapspace *ms = spaces + size (); ms-- > spaces; )
453	while (tmp!=NULL) {	228	for (object *tmp = ms->bot; tmp; tmp = tmp->above)
454	next = tmp->below;	229	tmp->flag [flag] = value;
455	if (tmp->inv)
456	fix_container(tmp);
457	(void) insert_ob_in_ob(tmp,container);
458	tmp = next;
459	}
460	/* sum_weight will go through and calculate what all the containers are
461	* carrying.
462	*/
463	sum_weight(container);
464	}	230	}
		231
		232	void
		233	maptile::post_load_original ()
		234	{
		235	if (!spaces)
		236	return;
		237
		238	set_object_flag (FLAG_OBJ_ORIGINAL);
		239
		240	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		241	for (object *tmp = ms->bot; tmp; tmp = tmp->above)
		242	INVOKE_OBJECT (RESET, tmp);
		243	}
		244
		245	void
		246	maptile::post_load ()
		247	{
		248	#if 0
		249	if (!spaces)
		250	return;
		251
		252	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		253	for (object *tmp = ms->bot; tmp; tmp = tmp->above)
		254	; // nop
		255	#endif
		256	}
		257
		258	//+GPL
465		259
466	/* link_multipart_objects go through all the objects on the map looking	260	/* link_multipart_objects go through all the objects on the map looking
467	* for objects whose arch says they are multipart yet according to the	261	* for objects whose arch says they are multipart yet according to the
468	* info we have, they only have the head (as would be expected when	262	* info we have, they only have the head (as would be expected when
469	* they are saved). We do have to look for the old maps that did save	263	* they are saved).
470	* the more sections and not re-add sections for them.
471	*/	264	*/
472		265	void
473	static void link_multipart_objects(mapstruct *m)	266	maptile::link_multipart_objects ()
474	{	267	{
475	int x,y;	268	if (!spaces)
476	object *tmp, *op, *last, *above;	269	return;
477	archetype *at;
478		270
479	for(x=0;x<MAP_WIDTH(m);x++)	271	for (mapspace *ms = spaces + size (); ms-- > spaces; )
480	for(y=0;y<MAP_HEIGHT(m);y++)	272	{
481	for(tmp=get_map_ob(m,x,y);tmp!=NULL;tmp=above) {	273	object *op = ms->bot;
482	above=tmp->above;	274	while (op)
483		275	{
484	/* already multipart - don't do anything more */	276	/* already multipart - don't do anything more */
485	if (tmp->head || tmp->more) continue;	277	if (op->head_ () == op && !op->more && op->arch->more)
		278	{
		279	op->remove ();
		280	op->expand_tail ();
486		281
487	/* If there is nothing more to this object, this for loop	282	// FIXME: INS_ON_TOP is just a workaround for the pentagram vs.
488	* won't do anything.	283	// multi-tile monster bug, where INS_ABOVE_FLOOR_ONLY put the monsters
489	*/	284	// below the pentagrams... hopefully INS_ON_TOP doesn't break anything
490	for (at = tmp->arch->more, last=tmp; at != NULL; at=at->more, last=op) {	285	insert (op, op->x, op->y, 0, INS_NO_MERGE | INS_ON_TOP | INS_NO_WALK_ON);
491	op = arch_to_object(at);
492		286
493	/* update x,y coordinates */	287	op = ms->bot; // we are mutating the mapspace too much with INS_ON_TOP
494	op->x += tmp->x;	288	// so we have to reset the iteration through the mapspace
495	op->y += tmp->y;	289	}
496	op->head = tmp;	290	else
497	op->map = m;	291	op = op->above;
498	last->more = op;	292	}
499	if (tmp->name != op->name) {
500	if (op->name) free_string(op->name);
501	op->name = add_string(tmp->name);
502	}	293	}
503	if (tmp->title != op->title) {
504	if (op->title) free_string(op->title);
505	op->title = add_string(tmp->title);
506	}
507	/* we could link all the parts onto tmp, and then just
508	* call insert_ob_in_map once, but the effect is the same,
509	* as insert_ob_in_map will call itself with each part, and
510	* the coding is simpler to just to it here with each part.
511	*/
512	insert_ob_in_map(op, op->map, tmp,INS_NO_MERGE|INS_ABOVE_FLOOR_ONLY|INS_NO_WALK_ON);
513	} /* for at = tmp->arch->more */
514	} /* for objects on this space */
515	}	294	}
516		295
517		296	//-GPL
518		297
519	/*	298	/*
520	* Loads (ands parses) the objects into a given map from the specified	299	* Loads (ands parses) the objects into a given map from the specified
521	* file pointer.	300	* file pointer.
522	* mapflags is the same as we get with load_original_map
523	*/
524
525	void load_objects (mapstruct *m, FILE *fp, int mapflags) {
526	int i,j,bufstate=LO_NEWFILE;
527	int unique;
528	object *op, *prev=NULL,*last_more=NULL, *otmp;
529
530	op=get_object();
531	op->map = m; /* To handle buttons correctly */
532
533	while((i=load_object(fp,op,bufstate, mapflags))) {
534	/* Since the loading of the map header does not load an object
535	* anymore, we need to pass LO_NEWFILE for the first object loaded,
536	* and then switch to LO_REPEAT for faster loading.
537	*/	301	*/
538	bufstate = LO_REPEAT;	302	bool
539		303	maptile::_load_objects (object_thawer &f)
540	/* if the archetype for the object is null, means that we	304	{
541	* got an invalid object. Don't do anything with it - the game	305	for (;;)
542	* or editor will not be able to do anything with it either.
543	*/
544	if (op->arch==NULL) {
545	LOG(llevDebug,"Discarding object without arch: %s\n", op->name?op->name:"(null)");
546	continue;
547	}
548
549
550	switch(i) {
551	case LL_NORMAL:
552	/* if we are loading an overlay, put the floors on the bottom */
553	if ((QUERY_FLAG(op, FLAG_IS_FLOOR) ||
554	QUERY_FLAG(op, FLAG_OVERLAY_FLOOR)) && mapflags & MAP_OVERLAY)
555	insert_ob_in_map(op,m,op,INS_NO_MERGE | INS_NO_WALK_ON | INS_ABOVE_FLOOR_ONLY | INS_MAP_LOAD);
556	else
557	insert_ob_in_map(op,m,op,INS_NO_MERGE | INS_NO_WALK_ON | INS_ON_TOP | INS_MAP_LOAD);
558
559	if (op->inv)
560	sum_weight(op);
561
562	prev=op,last_more=op;
563	break;
564
565	case LL_MORE:
566	insert_ob_in_map(op,m, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ABOVE_FLOOR_ONLY);
567	op->head=prev,last_more->more=op,last_more=op;
568	break;
569	}
570	if (mapflags & MAP_STYLE) {
571	remove_from_active_list(op);
572	}
573	op=get_object();
574	op->map = m;
575	}	306	{
576	for (i=0;i<m->width;i++){	307	coroapi::cede_to_tick (); // cede once in a while
577	for (j=0;j<m->height;j++){	308
		309	switch (f.kw)
		310	{
		311	case KW_arch:
		312	if (object *op = object::read (f, this))
		313	{
		314	// TODO: why?
		315	if (op->inv)
		316	op->update_weight ();
		317
		318	if (IN_RANGE_EXC (op->x, 0, width) && IN_RANGE_EXC (op->y, 0, height))
		319	{
		320	// we insert manually because
		321	// a) its way faster
		322	// b) we remove manually, too, and there are good reasons for that
		323	// c) it's correct
		324	mapspace &ms = at (op->x, op->y);
		325
		326	op->flag [FLAG_REMOVED] = false;
		327
		328	op->above = 0;
		329	op->below = ms.top;
		330
		331	*(ms.top ? &ms.top->above : &ms.bot) = op;
		332
		333	ms.top = op;
		334	ms.flags_ = 0;
		335	}
		336	else
		337	{
		338	f.parse_warn (format ("object %s out of range", op->debug_desc ()));
		339	op->destroy ();
		340	}
		341	}
		342
578	unique =0;	343	continue;
579	/* check for unique items, or unique squares */	344
580	for (otmp = get_map_ob(m, i, j); otmp; otmp = otmp->above) {	345	case KW_EOF:
581	if (QUERY_FLAG(otmp, FLAG_UNIQUE) || QUERY_FLAG(otmp, FLAG_OBJ_SAVE_ON_OVL))	346	return true;
582	unique = 1;	347
583	if (!(mapflags & (MAP_OVERLAY|MAP_PLAYER_UNIQUE) || unique))	348	default:
584	SET_FLAG(otmp, FLAG_OBJ_ORIGINAL);	349	if (!f.parse_error ("map file"))
		350	return false;
		351	break;
		352	}
		353
		354	f.next ();
585	}	355	}
586	}	356
		357	return true;
		358	}
		359
		360	void
		361	maptile::activate ()
		362	{
		363	if (spaces)
		364	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		365	for (object *op = ms->bot; op; op = op->above)
		366	op->activate_recursive ();
		367	}
		368
		369	void
		370	maptile::deactivate ()
		371	{
		372	if (spaces)
		373	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		374	for (object *op = ms->bot; op; op = op->above)
		375	op->deactivate_recursive ();
		376	}
		377
		378	bool
		379	maptile::_save_objects (object_freezer &f, int flags)
		380	{
		381	coroapi::cede_to_tick ();
		382
		383	if (flags & IO_HEADER)
		384	_save_header (f);
		385
		386	if (!spaces)
		387	return false;
		388
		389	for (int i = 0; i < size (); ++i)
587	}	390	{
588	free_object(op);	391	bool unique = 0;
589	link_multipart_objects(m);
590	}
591		392
592	/* This saves all the objects on the map in a non destructive fashion.	393	for (object *op = spaces [i].bot; op; op = op->above)
593	* Modified by MSW 2001-07-01 to do in a single pass - reduces code,	394	{
594	* and we only save the head of multi part objects - this is needed	395	unique |= op->flag [FLAG_UNIQUE] && op->flag [FLAG_IS_FLOOR];
595	* in order to do map tiling properly.	396
		397	if (expect_false (!op->can_map_save ()))
		398	continue;
		399
		400	if (expect_false (unique || op->flag [FLAG_UNIQUE]))
		401	{
		402	if (flags & IO_UNIQUES)
		403	op->write (f);
		404	}
		405	else if (expect_true (flags & IO_OBJECTS))
		406	op->write (f);
		407	}
		408	}
		409
		410	coroapi::cede_to_tick ();
		411
		412	return true;
		413	}
		414
		415	bool
		416	maptile::_save_objects (const char *path, int flags)
		417	{
		418	object_freezer freezer;
		419
		420	if (!_save_objects (freezer, flags))
		421	return false;
		422
		423	return freezer.save (path);
		424	}
		425
		426	void
		427	maptile::init ()
		428	{
		429	in_memory = MAP_SWAPPED;
		430
		431	/* The maps used to pick up default x and y values from the
		432	* map archetype. Mimic that behaviour.
596	*/	433	*/
597	void save_objects (mapstruct *m, FILE *fp, FILE *fp2, int flag) {	434	width = 16;
598	int i, j = 0,unique=0;	435	height = 16;
599	object *op;	436	timeout = 300;
600	/* first pass - save one-part objects */	437	max_items = MAX_ITEM_PER_ACTION;
601	for(i = 0; i < MAP_WIDTH(m); i++)	438	max_volume = 2000000; // 2m³
602	for (j = 0; j < MAP_HEIGHT(m); j++) {	439	reset_timeout = 0;
603	unique=0;	440	enter_x = 0;
604	for(op = get_map_ob (m, i, j); op; op = op->above) {	441	enter_y = 0;
605	if (QUERY_FLAG(op,FLAG_IS_FLOOR) && QUERY_FLAG(op, FLAG_UNIQUE))	442	}
606	unique=1;
607		443
608	if(op->type == PLAYER) {	444	maptile::maptile ()
609	LOG(llevDebug, "Player on map that is being saved\n");	445	{
610	continue;	446	init ();
611	}	447	}
612		448
613	if (op->head || op->owner)	449	maptile::maptile (int w, int h)
614	continue;	450	{
		451	init ();
615		452
616	if (unique || QUERY_FLAG(op, FLAG_UNIQUE))	453	width = w;
617	save_object( fp2 , op, 3);	454	height = h;
618	else
619	if (flag == 0 ||
620	(flag == 2 && (!QUERY_FLAG(op, FLAG_OBJ_ORIGINAL) &&
621	!QUERY_FLAG(op, FLAG_UNPAID))))
622	save_object(fp, op, 3);
623		455
624	} /* for this space */	456	alloc ();
625	} /* for this j */
626	}	457	}
627		458
628	/*	459	/*
629	* Allocates, initialises, and returns a pointer to a mapstruct.
630	* Modified to no longer take a path option which was not being
631	* used anyways. MSW 2001-07-01
632	*/
633
634	mapstruct *get_linked_map(void) {
635	mapstruct *map=(mapstruct *) calloc(1,sizeof(mapstruct));
636	mapstruct *mp;
637
638	if(map==NULL)
639	fatal(OUT_OF_MEMORY);
640
641	for(mp=first_map;mp!=NULL&&mp->next!=NULL;mp=mp->next);
642	if(mp==NULL)
643	first_map=map;
644	else
645	mp->next=map;
646
647	map->in_memory=MAP_SWAPPED;
648	/* The maps used to pick up default x and y values from the
649	* map archetype. Mimic that behaviour.
650	*/
651	MAP_WIDTH(map)=16;
652	MAP_HEIGHT(map)=16;
653	MAP_RESET_TIMEOUT(map)=0;
654	MAP_TIMEOUT(map)=300;
655	MAP_ENTER_X(map)=0;
656	MAP_ENTER_Y(map)=0;
657	/*set part to -1 indicating conversion to weather map not yet done*/
658	MAP_WORLDPARTX(map)=-1;
659	MAP_WORLDPARTY(map)=-1;
660	return map;
661	}
662
663	/*
664	* Allocates the arrays contained in a mapstruct.	460	* Allocates the arrays contained in a maptile.
665	* This basically allocates the dynamic array of spaces for the	461	* This basically allocates the dynamic array of spaces for the
666	* map.	462	* map.
667	*/	463	*/
668		464	void
669	void allocate_map(mapstruct *m) {	465	maptile::alloc ()
670	m->in_memory = MAP_IN_MEMORY;	466	{
671	/* Log this condition and free the storage. We could I suppose
672	* realloc, but if the caller is presuming the data will be intact,
673	* that is their poor assumption.
674	*/
675	if (m->spaces) {	467	if (spaces)
676	LOG(llevError,"allocate_map called with already allocated map (%s)\n", m->path);
677	free(m->spaces);
678	}
679
680	m->spaces = (MapSpace *) calloc(1, MAP_WIDTH(m) * MAP_HEIGHT(m) * sizeof(MapSpace));
681
682	if(m->spaces==NULL)
683	fatal(OUT_OF_MEMORY);
684	}
685
686	/* Create and returns a map of the specific size. Used
687	* in random map code and the editor.
688	*/
689	mapstruct *get_empty_map(int sizex, int sizey) {
690	mapstruct *m = get_linked_map();
691	m->width = sizex;
692	m->height = sizey;
693	m->in_memory = MAP_SWAPPED;
694	allocate_map(m);
695	return m;	468	return;
		469
		470	spaces = salloc0<mapspace> (size ());
696	}	471	}
		472
		473	//+GPL
697		474
698	/* Takes a string from a map definition and outputs a pointer to the array of shopitems	475	/* Takes a string from a map definition and outputs a pointer to the array of shopitems
699	* corresponding to that string. Memory is allocated for this, it must be freed	476	* corresponding to that string. Memory is allocated for this, it must be freed
700	* at a later date.	477	* at a later date.
701	* Called by parse_map_headers below.	478	* Called by parse_map_headers below.
702	*/	479	*/
703		480	static shopitems *
704	static shopitems *parse_shop_string (const char *input_string) {	481	parse_shop_string (const char *input_string)
		482	{
705	char *shop_string, *p, *q, *next_semicolon, *next_colon;	483	char *shop_string, *p, *q, *next_semicolon, *next_colon;
706	shopitems *items=NULL;	484	shopitems *items = NULL;
707	int i=0, number_of_entries=0;	485	int i = 0, number_of_entries = 0;
708	const typedata *current_type;	486	const typedata *current_type;
709		487
710	shop_string=strdup_local(input_string);	488	shop_string = strdup (input_string);
711	p=shop_string;	489	p = shop_string;
712	/* first we'll count the entries, we'll need that for allocating the array shortly */	490	/* first we'll count the entries, we'll need that for allocating the array shortly */
713	while (p) {	491	while (p)
		492	{
714	p=strchr(p, ';');	493	p = strchr (p, ';');
715	number_of_entries++;	494	number_of_entries++;
716	if (p) p++;	495	if (p)
		496	p++;
717	}	497	}
		498
718	p=shop_string;	499	p = shop_string;
719	strip_endline(p);	500	strip_endline (p);
720	items=(shopitems *) CALLOC(number_of_entries+1, sizeof(shopitems));	501	items = new shopitems[number_of_entries + 1];
721	memset(items, 0, (sizeof(shopitems) * number_of_entries+1));
722	for (i=0; i<number_of_entries; i++) {	502	for (i = 0; i < number_of_entries; i++)
723	if (!p) {	503	{
		504	if (!p)
		505	{
724	LOG(llevError, "parse_shop_string: I seem to have run out of string, that shouldn't happen.\n");	506	LOG (llevError, "parse_shop_string: I seem to have run out of string, that shouldn't happen.\n");
725	break;	507	break;
726	}
727	next_semicolon=strchr(p, ';');
728	next_colon=strchr(p, ':');
729	/* if there is a stregth specified, figure out what it is, we'll need it soon. */
730	if (next_colon &&( !next_semicolon || next_colon<next_semicolon))
731	items[i].strength=atoi(strchr(p,':')+1);
732
733	if (isdigit(*p) || *p=='*') {
734	items[i].typenum = atoi(p); /* atoi returns 0 when we have an asterisk */
735	current_type=get_typedata(items[i].typenum);
736	if (current_type) {
737	items[i].name=current_type->name;
738	items[i].name_pl=current_type->name_pl;
739	}
740	}
741	else { /*we have a named type, let's figure out what it is */
742	q=strpbrk(p,";:");
743	if (q) *q='\0';
744
745	current_type=get_typedata_by_name(p);
746	if (current_type) {
747	items[i].name=current_type->name;
748	items[i].typenum=current_type->number;
749	items[i].name_pl=current_type->name_pl;
750	}
751	else { /* oh uh, something's wrong, let's free up this one, and try
752	* the next entry while we're at it, better print a warning
753	*/
754	LOG(llevError, "invalid type %s defined in shopitems in string %s\n",
755	p, input_string);
756	}
757	}	508	}
		509
		510	next_semicolon = strchr (p, ';');
		511	next_colon = strchr (p, ':');
		512	/* if there is a stregth specified, figure out what it is, we'll need it soon. */
		513	if (next_colon && (!next_semicolon || next_colon < next_semicolon))
		514	items[i].strength = atoi (strchr (p, ':') + 1);
		515
		516	if (isdigit (*p) || *p == '*')
		517	{
		518	items[i].typenum = atoi (p); /* atoi returns 0 when we have an asterisk */
		519	current_type = get_typedata (items[i].typenum);
		520	if (current_type)
		521	{
		522	items[i].name = current_type->name;
		523	items[i].name_pl = current_type->name_pl;
		524	}
		525	}
		526	else
		527	{ /*we have a named type, let's figure out what it is */
		528	q = strpbrk (p, ";:");
		529	if (q)
		530	*q = '\0';
		531
		532	current_type = get_typedata_by_name (p);
		533	if (current_type)
		534	{
		535	items[i].name = current_type->name;
		536	items[i].typenum = current_type->number;
		537	items[i].name_pl = current_type->name_pl;
		538	}
		539	else
		540	{ /* oh uh, something's wrong, let's free up this one, and try
		541	* the next entry while we're at it, better print a warning
		542	*/
		543	LOG (llevError, "invalid type %s defined in shopitems in string %s\n", p, input_string);
		544	}
		545	}
		546
758	items[i].index=number_of_entries;	547	items[i].index = number_of_entries;
759	if (next_semicolon) p=++next_semicolon;	548	if (next_semicolon)
760	else p=NULL;	549	p = ++next_semicolon;
		550	else
		551	p = NULL;
761	}	552	}
		553
762	free(shop_string);	554	free (shop_string);
763	return items;	555	return items;
764	}	556	}
765		557
766	/* opposite of parse string, this puts the string that was originally fed in to	558	/* opposite of parse string, this puts the string that was originally fed in to
767	* the map (or something equivilent) into output_string. */	559	* the map (or something equivilent) into output_string. */
768	static void print_shop_string(mapstruct *m, char *output_string) {	560	static const char *
769	int i;	561	print_shop_string (maptile *m)
770	char tmp[MAX_BUF];	562	{
771	strcpy(output_string, "");	563	static dynbuf_text buf; buf.clear ();
		564
772	for (i=0; i< m->shopitems[0].index; i++) {	565	for (int i = 0; i < m->shopitems[0].index; i++)
		566	{
773	if (m->shopitems[i].typenum) {	567	if (m->shopitems[i].typenum)
		568	{
774	if (m->shopitems[i].strength) {	569	if (m->shopitems[i].strength)
775	sprintf(tmp, "%s:%d;", m->shopitems[i].name, m->shopitems[i].strength);	570	buf.printf ("%s:%d;", m->shopitems[i].name, m->shopitems[i].strength);
		571	else
		572	buf.printf ("%s;", m->shopitems[i].name);
		573	}
		574	else
		575	{
		576	if (m->shopitems[i].strength)
		577	buf.printf ("*:%d;", m->shopitems[i].strength);
		578	else
		579	buf.printf ("*");
		580	}
776	}	581	}
777	else sprintf(tmp, "%s;", m->shopitems[i].name);	582
778	}	583	return buf;
779	else {
780	if (m->shopitems[i].strength) {
781	sprintf(tmp, "*:%d;", m->shopitems[i].strength);
782	}
783	else sprintf(tmp, "*");
784	}
785	strcat(output_string, tmp);
786	}
787	}	584	}
		585
		586	//-GPL
788		587
789	/* This loads the header information of the map. The header	588	/* This loads the header information of the map. The header
790	* contains things like difficulty, size, timeout, etc.	589	* contains things like difficulty, size, timeout, etc.
791	* this used to be stored in the map object, but with the	590	* this used to be stored in the map object, but with the
792	* addition of tiling, fields beyond that easily named in an	591	* addition of tiling, fields beyond that easily named in an
…		…
794	* put all the stuff in the map object so that names actually make	593	* put all the stuff in the map object so that names actually make
795	* sense.	594	* sense.
796	* This could be done in lex (like the object loader), but I think	595	* This could be done in lex (like the object loader), but I think
797	* currently, there are few enough fields this is not a big deal.	596	* currently, there are few enough fields this is not a big deal.
798	* MSW 2001-07-01	597	* MSW 2001-07-01
799	* return 0 on success, 1 on failure.
800	*/	598	*/
801		599	bool
802	static int load_map_header(FILE *fp, mapstruct *m)	600	maptile::_load_header (object_thawer &thawer)
803	{	601	{
804	char buf[HUGE_BUF], msgbuf[HUGE_BUF], maplorebuf[HUGE_BUF], *key=NULL, *value, *end;	602	for (;;)
805	int msgpos=0;	603	{
806	int maplorepos=0;	604	switch (thawer.kw)
		605	{
		606	case KW_msg:
		607	thawer.get_ml (KW_endmsg, msg);
		608	break;
807		609
808	while (fgets(buf, HUGE_BUF-1, fp)!=NULL) {	610	case KW_lore: // CF+ extension
809	buf[HUGE_BUF-1] = 0;	611	thawer.get_ml (KW_endlore, maplore);
810	key = buf;	612	break;
811	while (isspace(*key)) key++;	613
812	if (*key == 0) continue; /* empty line */	614	case KW_maplore:
813	value = strchr(key, ' ');	615	thawer.get_ml (KW_endmaplore, maplore);
814	if (!value) {	616	break;
815	end = strchr(key, '\n');	617
816	if (end != NULL) {	618	case KW_arch:
817	*end = 0;	619	if (strcmp (thawer.get_str (), "map"))
		620	LOG (llevError, "%s: loading map and got a non 'arch map' line (arch %s), skipping.\n", &path, thawer.get_str ());
		621	break;
		622
		623	case KW_oid:
		624	thawer.get (this, thawer.get_sint32 ());
		625	break;
		626
		627	case KW_file_format_version: break; // nop
		628
		629	case KW_name: thawer.get (name); break;
		630	case KW_attach: thawer.get (attach); break;
		631	case KW_reset_time: thawer.get (reset_time); break;
		632	case KW_shopgreed: thawer.get (shopgreed); break;
		633	case KW_shopmin: thawer.get (shopmin); break;
		634	case KW_shopmax: thawer.get (shopmax); break;
		635	case KW_shoprace: thawer.get (shoprace); break;
		636	case KW_outdoor: thawer.get (outdoor); break;
		637
		638	case KW_per_player: thawer.get (per_player); break;
		639	case KW_per_party: thawer.get (per_party); break;
		640	case KW_no_reset: thawer.get (no_reset); break;
		641	case KW_no_drop: thawer.get (no_drop); break;
		642
		643	case KW_region: default_region = region::find (thawer.get_str ()); break;
		644	case KW_shopitems: shopitems = parse_shop_string (thawer.get_str ()); break;
		645
		646	// old names new names
		647	case KW_hp: case KW_enter_x: thawer.get (enter_x); break;
		648	case KW_sp: case KW_enter_y: thawer.get (enter_y); break;
		649	case KW_x: case KW_width: thawer.get (width); break;
		650	case KW_y: case KW_height: thawer.get (height); break;
		651	case KW_weight: case KW_reset_timeout: thawer.get (reset_timeout); break;
		652	case KW_value: case KW_swap_time: thawer.get (timeout); break;
		653	case KW_level: case KW_difficulty: thawer.get (difficulty); difficulty = clamp (difficulty, 1, settings.max_level); break;
		654	case KW_invisible: case KW_darkness: thawer.get (darkness); break;
		655	case KW_stand_still: case KW_fixed_resettime: thawer.get (fixed_resettime); break;
		656
		657	case KW_tile_path_1: thawer.get (tile_path [0]); break;
		658	case KW_tile_path_2: thawer.get (tile_path [1]); break;
		659	case KW_tile_path_3: thawer.get (tile_path [2]); break;
		660	case KW_tile_path_4: thawer.get (tile_path [3]); break;
		661
		662	case KW_ERROR:
		663	set_key_text (thawer.kw_str, thawer.value);
		664	break;
		665
		666	case KW_end:
		667	thawer.next ();
		668	return true;
		669
		670	default:
		671	if (!thawer.parse_error ("map"))
		672	return false;
		673	break;
		674	}
		675
		676	thawer.next ();
818	}	677	}
819	} else {
820	*value = 0;
821	value++;
822	end = strchr(value, '\n');
823	while (isspace(*value)) {
824	value++;
825	if (*value == '\0' || value == end) {
826	/* Nothing but spaces. */
827	value = NULL;
828	break;
829	}
830	}
831	}
832	if (!end) {
833	LOG(llevError, "Error loading map header - did not find a newline - perhaps file is truncated? Buf=%s\n",
834	buf);
835	return 1;
836	}
837
838		678
839	/* key is the field name, value is what it should be set	679	abort ();
840	* to. We've already done the work to null terminate key,
841	* and strip off any leading spaces for both of these.
842	* We have not touched the newline at the end of the line -
843	* these are needed for some values. the end pointer
844	* points to the first of the newlines.
845	* value could be NULL! It would be easy enough to just point
846	* this to "" to prevent cores, but that would let more errors slide
847	* through.
848	*
849	* First check for entries that do not use the value parameter, then
850	* validate that value is given and check for the remaining entries
851	* that use the parameter.
852	*/
853
854	if (!strcmp(key,"msg")) {
855	while (fgets(buf, HUGE_BUF-1, fp)!=NULL) {
856	if (!strcmp(buf,"endmsg\n")) break;
857	else {
858	/* slightly more efficient than strcat */
859	strcpy(msgbuf+msgpos, buf);
860	msgpos += strlen(buf);
861	}
862	}
863	/* There are lots of maps that have empty messages (eg, msg/endmsg
864	* with nothing between). There is no reason in those cases to
865	* keep the empty message. Also, msgbuf contains garbage data
866	* when msgpos is zero, so copying it results in crashes
867	*/
868	if (msgpos != 0)
869	m->msg = strdup_local(msgbuf);
870	}
871	else if (!strcmp(key,"maplore")) {
872	while (fgets(buf, HUGE_BUF-1, fp)!=NULL) {
873	if (!strcmp(buf,"endmaplore\n")) break;
874	else {
875	/* slightly more efficient than strcat */
876	strcpy(maplorebuf+maplorepos, buf);
877	maplorepos += strlen(buf);
878	}
879	}
880	if (maplorepos != 0)
881	m->maplore = strdup_local(maplorebuf);
882	}
883	else if (!strcmp(key,"end")) {
884	break;
885	}
886	else if (value == NULL) {
887	LOG(llevError, "Got '%s' line without parameter in map header\n", key);
888	}
889	else if (!strcmp(key, "arch")) {
890	/* This is an oddity, but not something we care about much. */
891	if (strcmp(value,"map\n"))
892	LOG(llevError,"loading map and got a non 'arch map' line(%s %s)?\n",key,value);
893	}
894	else if (!strcmp(key,"name")) {
895	*end=0;
896	m->name = strdup_local(value);
897	}
898	/* first strcmp value on these are old names supported
899	* for compatibility reasons. The new values (second) are
900	* what really should be used.
901	*/
902	else if (!strcmp(key,"hp") || !strcmp(key, "enter_x")) {
903	m->enter_x = atoi(value);
904	} else if (!strcmp(key,"sp") || !strcmp(key, "enter_y")) {
905	m->enter_y = atoi(value);
906	} else if (!strcmp(key,"x") || !strcmp(key, "width")) {
907	m->width = atoi(value);
908	} else if (!strcmp(key,"y") || !strcmp(key, "height")) {
909	m->height = atoi(value);
910	} else if (!strcmp(key,"weight") || !strcmp(key, "reset_timeout")) {
911	m->reset_timeout = atoi(value);
912	} else if (!strcmp(key,"value") || !strcmp(key, "swap_time")) {
913	m->timeout = atoi(value);
914	} else if (!strcmp(key,"level") || !strcmp(key, "difficulty")) {
915	m->difficulty = atoi(value);
916	} else if (!strcmp(key,"invisible") || !strcmp(key, "darkness")) {
917	m->darkness = atoi(value);
918	} else if (!strcmp(key,"stand_still") || !strcmp(key, "fixed_resettime")) {
919	m->fixed_resettime = atoi(value);
920	} else if (!strcmp(key,"unique")) {
921	m->unique = atoi(value);
922	} else if (!strcmp(key,"template")) {
923	m->templatemap = atoi(value);
924	} else if (!strcmp(key,"region")) {
925	m->region = get_region_by_name(value);
926	} else if (!strcmp(key,"shopitems")) {
927	*end=0;
928	m->shopitems = parse_shop_string(value);
929	} else if (!strcmp(key,"shopgreed")) {
930	m->shopgreed = atof(value);
931	} else if (!strcmp(key,"shopmin")) {
932	m->shopmin = atol(value);
933	} else if (!strcmp(key,"shopmax")) {
934	m->shopmax = atol(value);
935	} else if (!strcmp(key,"shoprace")) {
936	*end=0;
937	m->shoprace = strdup_local(value);
938	} else if (!strcmp(key,"outdoor")) {
939	m->outdoor = atoi(value);
940	} else if (!strcmp(key, "temp")) {
941	m->temp = atoi(value);
942	} else if (!strcmp(key, "pressure")) {
943	m->pressure = atoi(value);
944	} else if (!strcmp(key, "humid")) {
945	m->humid = atoi(value);
946	} else if (!strcmp(key, "windspeed")) {
947	m->windspeed = atoi(value);
948	} else if (!strcmp(key, "winddir")) {
949	m->winddir = atoi(value);
950	} else if (!strcmp(key, "sky")) {
951	m->sky = atoi(value);
952	} else if (!strcmp(key, "nosmooth")) {
953	m->nosmooth = atoi(value);
954	} else if (!strcmp(key, "safe_map")) {
955	m->safe_map = atoi(value);
956	}
957	else if (!strncmp(key,"tile_path_", 10)) {
958	int tile=atoi(key+10);
959
960	if (tile<1 || tile>4) {
961	LOG(llevError,"load_map_header: tile location %d out of bounds (%s)\n",
962	tile, m->path);
963	} else {
964	char *path;
965
966	*end = 0;
967
968	if (m->tile_path[tile-1]) {
969	LOG(llevError,"load_map_header: tile location %d duplicated (%s)\n",
970	tile, m->path);
971	free(m->tile_path[tile-1]);
972	m->tile_path[tile-1] = NULL;
973	}
974
975	if (check_path(value, 1) != -1) {
976	/* The unadorned path works. */
977	path = value;
978	} else {
979	/* Try again; it could be a relative exit. */
980
981	path = path_combine_and_normalize(m->path, value);
982
983	if (check_path(path, 1) == -1) {
984	LOG(llevError, "get_map_header: Bad tile path %s %s\n", m->path, value);
985	path = NULL;
986	}
987	}
988
989	if (editor) {
990	/* Use the value as in the file. */
991	m->tile_path[tile-1] = strdup_local(value);
992	} else if (path != NULL) {
993	/* Use the normalized value. */
994	m->tile_path[tile-1] = strdup_local(path);
995	}
996	} /* end if tile direction (in)valid */
997	}
998	else {
999	LOG(llevError,"Got unknown value in map header: %s %s\n", key, value);
1000	}
1001	}
1002	if (!key || strcmp(key,"end")) {
1003	LOG(llevError,"Got premature eof on map header!\n");
1004	return 1;
1005	}
1006	return 0;
1007	}	680	}
1008		681
1009	/*	682	//+GPL
1010	* Opens the file "filename" and reads information about the map
1011	* from the given file, and stores it in a newly allocated
1012	* mapstruct. A pointer to this structure is returned, or NULL on failure.
1013	* flags correspond to those in map.h. Main ones used are
1014	* MAP_PLAYER_UNIQUE, in which case we don't do any name changes, and
1015	* MAP_BLOCK, in which case we block on this load. This happens in all
1016	* cases, no matter if this flag is set or not.
1017	* MAP_STYLE: style map - don't add active objects, don't add to server
1018	* managed map list.
1019	*/
1020
1021	mapstruct *load_original_map(const char *filename, int flags) {
1022	FILE *fp;
1023	mapstruct *m;
1024	int comp;
1025	char pathname[MAX_BUF];
1026
1027	LOG(llevDebug, "load_original_map: %s (%x)\n", filename,flags);
1028	if (flags & MAP_PLAYER_UNIQUE)
1029	strcpy(pathname, filename);
1030	else if (flags & MAP_OVERLAY)
1031	strcpy(pathname, create_overlay_pathname(filename));
1032	else
1033	strcpy(pathname, create_pathname(filename));
1034
1035	if((fp=open_and_uncompress(pathname, 0, &comp))==NULL) {
1036	LOG(llevError, "Can't open %s: %s\n", pathname, strerror_local(errno));
1037	return (NULL);
1038	}
1039
1040	m = get_linked_map();
1041
1042	strcpy (m->path, filename);
1043	if (load_map_header(fp, m)) {
1044	LOG(llevError,"Error loading map header for %s, flags=%d\n",
1045	filename, flags);
1046	delete_map(m);
1047	return NULL;
1048	}
1049
1050	allocate_map(m);
1051	m->compressed = comp;
1052
1053	m->in_memory=MAP_LOADING;
1054	load_objects (m, fp, flags & (MAP_BLOCK|MAP_STYLE));
1055	close_and_delete(fp, comp);
1056	m->in_memory=MAP_IN_MEMORY;
1057	if (!MAP_DIFFICULTY(m))
1058	MAP_DIFFICULTY(m)=calculate_difficulty(m);
1059	set_map_reset_time(m);
1060	if (load_original_map_callback)
1061	load_original_map_callback(m);
1062	return (m);
1063	}
1064
1065	/*
1066	* Loads a map, which has been loaded earlier, from file.
1067	* Return the map object we load into (this can change from the passed
1068	* option if we can't find the original map)
1069	*/
1070
1071	static mapstruct *load_temporary_map(mapstruct *m) {
1072	FILE *fp;
1073	int comp;
1074	char buf[MAX_BUF];
1075
1076	if (!m->tmpname) {
1077	LOG(llevError, "No temporary filename for map %s\n", m->path);
1078	strcpy(buf, m->path);
1079	delete_map(m);
1080	m = load_original_map(buf, 0);
1081	if(m==NULL) return NULL;
1082	fix_auto_apply(m); /* Chests which open as default */
1083	return m;
1084	}
1085
1086	if((fp=open_and_uncompress(m->tmpname,0, &comp))==NULL) {
1087	LOG(llevError, "Cannot open %s: %s\n",m->tmpname, strerror_local(errno));
1088	strcpy(buf, m->path);
1089	delete_map(m);
1090	m = load_original_map(buf, 0);
1091	if(m==NULL) return NULL;
1092	fix_auto_apply(m); /* Chests which open as default */
1093	return m;
1094	}
1095
1096
1097	if (load_map_header(fp, m)) {
1098	LOG(llevError,"Error loading map header for %s (%s)\n",
1099	m->path, m->tmpname);
1100	delete_map(m);
1101	m = load_original_map(m->path, 0);
1102	return NULL;
1103	}
1104	m->compressed = comp;
1105	allocate_map(m);
1106
1107	m->in_memory=MAP_LOADING;
1108	load_objects (m, fp, 0);
1109	close_and_delete(fp, comp);
1110	m->in_memory=MAP_IN_MEMORY;
1111	if (load_temporary_map_callback)
1112	load_temporary_map_callback(m);
1113	return m;
1114	}
1115
1116	/*
1117	* Loads a map, which has been loaded earlier, from file.
1118	* Return the map object we load into (this can change from the passed
1119	* option if we can't find the original map)
1120	*/
1121
1122	mapstruct *load_overlay_map(const char *filename, mapstruct *m) {
1123	FILE *fp;
1124	int comp;
1125	char pathname[MAX_BUF];
1126
1127	strcpy(pathname, create_overlay_pathname(filename));
1128
1129	if((fp=open_and_uncompress(pathname, 0, &comp))==NULL) {
1130	/* LOG(llevDebug,"Can't open overlay %s\n", pathname);*/
1131	return m;
1132	}
1133
1134	if (load_map_header(fp, m)) {
1135	LOG(llevError,"Error loading map header for overlay %s (%s)\n",
1136	m->path, pathname);
1137	delete_map(m);
1138	m = load_original_map(m->path, 0);
1139	return NULL;
1140	}
1141	m->compressed = comp;
1142	/*allocate_map(m);*/
1143
1144	m->in_memory=MAP_LOADING;
1145	load_objects (m, fp, MAP_OVERLAY);
1146	close_and_delete(fp, comp);
1147	m->in_memory=MAP_IN_MEMORY;
1148	return m;
1149	}
1150		683
1151	/******************************************************************************	684	/******************************************************************************
1152	* This is the start of unique map handling code	685	* This is the start of unique map handling code
1153	*****************************************************************************/	686	*****************************************************************************/
1154		687
1155	/* This goes through map 'm' and removed any unique items on the map. */	688	/* This goes through the maptile and removed any unique items on the map. */
1156	static void delete_unique_items(mapstruct *m)	689	void
		690	maptile::clear_unique_items ()
1157	{	691	{
		692	for (int i = 0; i < size (); ++i)
		693	{
1158	int i,j,unique;	694	int unique = 0;
1159	object *op, *next;	695	for (object *op = spaces [i].bot; op; )
		696	{
		697	object *above = op->above;
1160		698
1161	for(i=0; i<MAP_WIDTH(m); i++)	699	if (op->flag [FLAG_IS_FLOOR] && op->flag [FLAG_UNIQUE])
1162	for(j=0; j<MAP_HEIGHT(m); j++) {	700	unique = 1;
1163	unique=0;	701
1164	for (op=get_map_ob(m, i, j); op; op=next) {	702	if (op->head_ () == op && (op->flag [FLAG_UNIQUE] || unique))
1165	next = op->above;	703	op->destroy ();
1166	if (QUERY_FLAG(op, FLAG_IS_FLOOR) && QUERY_FLAG(op, FLAG_UNIQUE))	704
1167	unique=1;	705	op = above;
1168	if(op->head == NULL && (QUERY_FLAG(op, FLAG_UNIQUE) || unique)) {	706	}
1169	clean_object(op);
1170	if (QUERY_FLAG(op, FLAG_IS_LINKED))
1171	remove_button_link(op);
1172	remove_ob(op);
1173	free_object(op);
1174	}
1175	}	707	}
1176	}
1177	}	708	}
1178		709
		710	//-GPL
1179		711
1180	/*	712	bool
1181	* Loads unique objects from file(s) into the map which is in memory	713	maptile::_save_header (object_freezer &freezer)
1182	* m is the map to load unique items into.	714	{
1183	*/	715	#define MAP_OUT(k) freezer.put (KW(k), k)
1184	static void load_unique_objects(mapstruct *m) {	716	#define MAP_OUT2(k,v) freezer.put (KW(k), v)
1185	FILE *fp;
1186	int comp,count;
1187	char firstname[MAX_BUF];
1188		717
1189	for (count=0; count<10; count++) {	718	MAP_OUT2 (arch, CS(map));
1190	sprintf(firstname, "%s.v%02d", create_items_path(m->path), count);
1191	if (!access(firstname, R_OK)) break;
1192	}
1193	/* If we get here, we did not find any map */
1194	if (count==10) return;
1195		719
1196	if ((fp=open_and_uncompress(firstname, 0, &comp))==NULL) {	720	if (name) MAP_OUT (name);
1197	/* There is no expectation that every map will have unique items, but this	721	MAP_OUT (swap_time);
1198	* is debug output, so leave it in.	722	MAP_OUT (reset_time);
1199	*/	723	MAP_OUT (reset_timeout);
1200	LOG(llevDebug, "Can't open unique items file for %s\n", create_items_path(m->path));	724	MAP_OUT (fixed_resettime);
1201	return;	725	MAP_OUT (no_reset);
1202	}	726	MAP_OUT (no_drop);
		727	MAP_OUT (difficulty);
		728	if (default_region) MAP_OUT2 (region, default_region->name);
1203		729
1204	m->in_memory=MAP_LOADING;	730	if (shopitems) MAP_OUT2 (shopitems, print_shop_string (this));
1205	if (m->tmpname == NULL) /* if we have loaded unique items from */	731	MAP_OUT (shopgreed);
1206	delete_unique_items(m); /* original map before, don't duplicate them */	732	MAP_OUT (shopmin);
1207	load_object(fp, NULL, LO_NOREAD,0);	733	MAP_OUT (shopmax);
1208	load_objects (m, fp, 0);	734	if (shoprace) MAP_OUT (shoprace);
1209	close_and_delete(fp, comp);
1210	m->in_memory=MAP_IN_MEMORY;
1211	}
1212		735
		736	MAP_OUT (width);
		737	MAP_OUT (height);
		738	MAP_OUT (enter_x);
		739	MAP_OUT (enter_y);
		740	MAP_OUT (darkness);
		741	MAP_OUT (outdoor);
1213		742
1214	/*	743	if (msg) freezer.put (KW(msg) , KW(endmsg) , msg);
1215	* Saves a map to file. If flag is set, it is saved into the same	744	if (maplore) freezer.put (KW(maplore), KW(endmaplore), maplore);
1216	* file it was (originally) loaded from. Otherwise a temporary
1217	* filename will be genarated, and the file will be stored there.
1218	* The temporary filename will be stored in the mapstructure.
1219	* If the map is unique, we also save to the filename in the map
1220	* (this should have been updated when first loaded)
1221	*/
1222		745
1223	int new_save_map(mapstruct *m, int flag) {	746	MAP_OUT (per_player);
1224	FILE *fp, *fp2;	747	MAP_OUT (per_party);
1225	char filename[MAX_BUF],buf[MAX_BUF], shop[MAX_BUF];
1226	int i;
1227
1228	if (flag && !*m->path) {
1229	LOG(llevError,"Tried to save map without path.\n");
1230	return -1;
1231	}
1232
1233	if (flag || (m->unique) || (m->templatemap)) {
1234	if (!m->unique && !m->templatemap) { /* flag is set */
1235	if (flag == 2)
1236	strcpy(filename, create_overlay_pathname(m->path));
1237	else
1238	strcpy (filename, create_pathname (m->path));
1239	} else
1240	strcpy (filename, m->path);
1241		748
1242	/* If the compression suffix already exists on the filename, don't	749	if (tile_path [0]) MAP_OUT2 (tile_path_1, tile_path [0]);
1243	* put it on again. This nasty looking strcmp checks to see if the	750	if (tile_path [1]) MAP_OUT2 (tile_path_2, tile_path [1]);
1244	* compression suffix is at the end of the filename already.	751	if (tile_path [2]) MAP_OUT2 (tile_path_3, tile_path [2]);
1245	*/	752	if (tile_path [3]) MAP_OUT2 (tile_path_4, tile_path [3]);
1246	if (m->compressed &&
1247	strcmp((filename + strlen(filename)-strlen(uncomp[m->compressed][0])),
1248	uncomp[m->compressed][0]))
1249	strcat(filename, uncomp[m->compressed][0]);
1250	make_path_to_file(filename);
1251	} else {
1252	if (!m->tmpname)
1253	m->tmpname = tempnam_local(settings.tmpdir,NULL);
1254	strcpy(filename, m->tmpname);
1255	}
1256	LOG(llevDebug,"Saving map %s\n",m->path);
1257	m->in_memory = MAP_SAVING;
1258		753
1259	unlink (filename); // do not overwrite backups if done via hardlinks	754	freezer.put (this);
		755	freezer.put (KW(end));
1260		756
1261	/* Compress if it isn't a temporary save. Do compress if unique */	757	return true;
1262	if (m->compressed && (m->unique || m->templatemap || flag)) {	758	}
1263	char buf[MAX_BUF];
1264	strcpy(buf, uncomp[m->compressed][2]);
1265	strcat(buf, " > ");
1266	strcat(buf, filename);
1267	fp = popen(buf, "w");
1268	} else
1269	fp = fopen(filename, "w");
1270		759
1271	if(fp == NULL) {	760	bool
1272	LOG(llevError, "Cannot write %s: %s\n", filename, strerror_local(errno));	761	maptile::_save_header (const char *path)
1273	return -1;	762	{
1274	}	763	object_freezer freezer;
1275
1276	/* legacy */
1277	fprintf(fp,"arch map\n");
1278	if (m->name) fprintf(fp,"name %s\n", m->name);
1279	if (!flag) fprintf(fp,"swap_time %d\n", m->swap_time);
1280	if (m->reset_timeout) fprintf(fp,"reset_timeout %d\n", m->reset_timeout);
1281	if (m->fixed_resettime) fprintf(fp,"fixed_resettime %d\n", m->fixed_resettime);
1282	/* we unfortunately have no idea if this is a value the creator set
1283	* or a difficulty value we generated when the map was first loaded
1284	*/
1285	if (m->difficulty) fprintf(fp,"difficulty %d\n", m->difficulty);
1286	if (m->region) fprintf(fp,"region %s\n", m->region->name);
1287	if (m->shopitems) {
1288	print_shop_string(m, shop);
1289	fprintf(fp,"shopitems %s\n", shop);
1290	}
1291	if (m->shopgreed) fprintf(fp,"shopgreed %f\n", m->shopgreed);
1292	#ifndef WIN32
1293	if (m->shopmin) fprintf(fp,"shopmin %llu\n", m->shopmin);
1294	if (m->shopmax) fprintf(fp,"shopmax %llu\n", m->shopmax);
1295	#else
1296	if (m->shopmin) fprintf(fp,"shopmin %I64u\n", m->shopmin);
1297	if (m->shopmax) fprintf(fp,"shopmax %I64u\n", m->shopmax);
1298	#endif
1299	if (m->shoprace) fprintf(fp,"shoprace %s\n", m->shoprace);
1300	if (m->darkness) fprintf(fp,"darkness %d\n", m->darkness);
1301	if (m->width) fprintf(fp,"width %d\n", m->width);
1302	if (m->height) fprintf(fp,"height %d\n", m->height);
1303	if (m->enter_x) fprintf(fp,"enter_x %d\n", m->enter_x);
1304	if (m->enter_y) fprintf(fp,"enter_y %d\n", m->enter_y);
1305	if (m->msg) fprintf(fp,"msg\n%sendmsg\n", m->msg);
1306	if (m->maplore) fprintf(fp,"maplore\n%sendmaplore\n", m->maplore);
1307	if (m->unique) fprintf(fp,"unique %d\n", m->unique);
1308	if (m->templatemap) fprintf(fp,"template %d\n", m->templatemap);
1309	if (m->outdoor) fprintf(fp,"outdoor %d\n", m->outdoor);
1310	if (m->temp) fprintf(fp, "temp %d\n", m->temp);
1311	if (m->pressure) fprintf(fp, "pressure %d\n", m->pressure);
1312	if (m->humid) fprintf(fp, "humid %d\n", m->humid);
1313	if (m->windspeed) fprintf(fp, "windspeed %d\n", m->windspeed);
1314	if (m->winddir) fprintf(fp, "winddir %d\n", m->winddir);
1315	if (m->sky) fprintf(fp, "sky %d\n", m->sky);
1316	if (m->nosmooth) fprintf(fp, "nosmooth %d\n", m->nosmooth);
1317	if (m->safe_map) fprintf(fp, "safe_map %d\n", m->safe_map);
1318		764
1319	/* Save any tiling information, except on overlays */	765	if (!_save_header (freezer))
1320	if (flag != 2)
1321	for (i=0; i<4; i++)
1322	if (m->tile_path[i])
1323	fprintf(fp,"tile_path_%d %s\n", i+1, m->tile_path[i]);
1324
1325	fprintf(fp,"end\n");
1326
1327	/* In the game save unique items in the different file, but
1328	* in the editor save them to the normal map file.
1329	* If unique map, save files in the proper destination (set by
1330	* player)
1331	*/
1332	fp2 = fp; /* save unique items into fp2 */
1333	if ((flag == 0 || flag == 2) && !m->unique && !m->templatemap) {
1334	sprintf (buf,"%s.v00",create_items_path (m->path));
1335	if ((fp2 = fopen (buf, "w")) == NULL) {
1336	LOG(llevError, "Can't open unique items file %s\n", buf);
1337	}
1338	if (flag == 2)
1339	save_objects(m, fp, fp2, 2);
1340	else
1341	save_objects (m, fp, fp2, 0);
1342	if (fp2 != NULL) {
1343	if (ftell (fp2) == 0) {
1344	fclose (fp2);
1345	unlink (buf);
1346	} else {
1347	fclose (fp2);
1348	chmod (buf, SAVE_MODE);
1349	}
1350	}
1351	} else { /* save same file when not playing, like in editor */
1352	save_objects(m, fp, fp, 0);
1353	}
1354
1355	if (m->compressed && (m->unique || m->templatemap || flag))
1356	pclose(fp);
1357	else
1358	fclose(fp);
1359
1360	chmod (filename, SAVE_MODE);
1361	return 0;	766	return false;
1362	}
1363		767
1364		768	return freezer.save (path);
1365	/*
1366	* Remove and free all objects in the inventory of the given object.
1367	* object.c ?
1368	*/
1369
1370	void clean_object(object *op)
1371	{
1372	object *tmp, *next;
1373
1374	for(tmp = op->inv; tmp; tmp = next)
1375	{
1376	next = tmp->below;
1377	clean_object(tmp);
1378	if (QUERY_FLAG(tmp, FLAG_IS_LINKED))
1379	remove_button_link(tmp);
1380	remove_ob(tmp);
1381	free_object(tmp);
1382	}
1383	}	769	}
		770
		771	//+GPL
1384		772
1385	/*	773	/*
1386	* Remove and free all objects in the given map.	774	* Remove and free all objects in the given map.
1387	*/	775	*/
		776	void
		777	maptile::clear ()
		778	{
		779	if (spaces)
		780	{
		781	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		782	while (object *op = ms->bot)
		783	{
		784	// manually remove, as to not trigger anything
		785	if (ms->bot = op->above)
		786	ms->bot->below = 0;
1388		787
1389	void free_all_objects(mapstruct *m) {	788	op->flag [FLAG_REMOVED] = true;
1390	int i,j;
1391	object *op;
1392		789
1393	for(i=0;i<MAP_WIDTH(m);i++)	790	object *head = op->head_ ();
1394	for(j=0;j<MAP_HEIGHT(m);j++) {	791	if (op == head)
1395	object *previous_obj=NULL;	792	op->destroy ();
1396	while((op=GET_MAP_OB(m,i,j))!=NULL) {	793	else if (head->map != op->map)
1397	if (op==previous_obj) {	794	{
1398	LOG(llevDebug, "free_all_objects: Link error, bailing out.\n");	795	LOG (llevDebug, "bad luck for object crossing map borders: %s", head->debug_desc ());
1399	break;	796	head->destroy ();
1400	}	797	}
1401	previous_obj=op;	798	}
1402	if(op->head!=NULL)
1403	op = op->head;
1404		799
1405	/* If the map isn't in memory, free_object will remove and	800	sfree0 (spaces, size ());
1406	* free objects in op's inventory. So let it do the job.
1407	*/
1408	if (m->in_memory==MAP_IN_MEMORY)
1409	clean_object(op);
1410	remove_ob(op);
1411	free_object(op);
1412	}	801	}
1413	}
1414	#ifdef MANY_CORES
1415	/* I see periodic cores on metalforge where a map has been swapped out, but apparantly
1416	* an item on that map was not saved - look for that condition and die as appropriate -
1417	* this leaves more of the map data intact for better debugging.
1418	*/
1419	for (op=objects; op!=NULL; op=op->next) {
1420	if (!QUERY_FLAG(op, FLAG_REMOVED) && op->map == m) {
1421	LOG(llevDebug,"free_all_objects: object %s still on map after it should have been freed\n", op->name);
1422	abort();
1423	}
1424	}
1425	#endif
1426	}
1427		802
1428	/*
1429	* Frees everything allocated by the given mapstructure.
1430	* don't free tmpname - our caller is left to do that
1431	*/
1432
1433	void free_map(mapstruct *m,int flag) {
1434	int i;
1435
1436	if (!m->in_memory) {
1437	LOG(llevError,"Trying to free freed map.\n");
1438	return;
1439	}
1440	if (flag && m->spaces) free_all_objects(m);
1441	if (m->name) FREE_AND_CLEAR(m->name);
1442	if (m->spaces) FREE_AND_CLEAR(m->spaces);
1443	if (m->msg) FREE_AND_CLEAR(m->msg);
1444	if (m->maplore) FREE_AND_CLEAR(m->maplore);
1445	if (m->shopitems) FREE_AND_CLEAR(m->shopitems);
1446	if (m->shoprace) FREE_AND_CLEAR(m->shoprace);
1447	if (m->buttons)	803	if (buttons)
1448	free_objectlinkpt(m->buttons);	804	free_objectlinkpt (buttons), buttons = 0;
1449	m->buttons = NULL;	805
		806	sfree0 (regions, size ());
		807	delete [] regionmap; regionmap = 0;
		808	}
		809
		810	void
		811	maptile::clear_header ()
		812	{
		813	name = 0;
		814	msg = 0;
		815	maplore = 0;
		816	shoprace = 0;
		817	delete [] shopitems, shopitems = 0;
		818
1450	for (i=0; i<4; i++) {	819	for (int i = 0; i < 4; i++)
1451	if (m->tile_path[i]) FREE_AND_CLEAR(m->tile_path[i]);	820	tile_path [i] = 0;
1452	m->tile_map[i] = NULL;
1453	}
1454	m->in_memory = MAP_SWAPPED;
1455	}	821	}
1456		822
1457	/*	823	maptile::~maptile ()
1458	* function: vanish mapstruct	824	{
1459	* m : pointer to mapstruct, if NULL no action	825	assert (destroyed ());
1460	* this deletes all the data on the map (freeing pointers)	826	}
1461	* and then removes this map from the global linked list of maps.
1462	*/
1463		827
1464	void delete_map(mapstruct *m) {	828	void
1465	mapstruct *tmp, *last;	829	maptile::clear_links_to (maptile *m)
1466	int i;	830	{
1467
1468	if (!m)
1469	return;
1470	if (m->in_memory == MAP_IN_MEMORY) {
1471	/* change to MAP_SAVING, even though we are not,
1472	* so that remove_ob doesn't do as much work.
1473	*/
1474	m->in_memory = MAP_SAVING;
1475	free_map (m, 1);
1476	}
1477	/* move this out of free_map, since tmpname can still be needed if
1478	* the map is swapped out.
1479	*/
1480	if (m->tmpname) {
1481	free(m->tmpname);
1482	m->tmpname=NULL;
1483	}
1484	last = NULL;
1485	/* We need to look through all the maps and see if any maps	831	/* We need to look through all the maps and see if any maps
1486	* are pointing at this one for tiling information. Since	832	* are pointing at this one for tiling information. Since
1487	* tiling can be assymetric, we just can not look to see which	833	* tiling can be asymetric, we just can not look to see which
1488	* maps this map tiles with and clears those.	834	* maps this map tiles with and clears those.
1489	*/	835	*/
1490	for (tmp = first_map; tmp != NULL; tmp = tmp->next) {
1491	if (tmp->next == m) last = tmp;
1492
1493	/* This should hopefully get unrolled on a decent compiler */
1494	for (i=0; i<4; i++)	836	for (int i = 0; i < 4; i++)
1495	if (tmp->tile_map[i] == m) tmp->tile_map[i]=NULL;	837	if (tile_map[i] == m)
1496	}	838	tile_map[i] = 0;
1497
1498	/* If last is null, then this should be the first map in the list */
1499	if (!last) {
1500	if (m == first_map)
1501	first_map = m->next;
1502	else
1503	/* m->path is a static char, so should hopefully still have
1504	* some useful data in it.
1505	*/
1506	LOG(llevError,"delete_map: Unable to find map %s in list\n",
1507	m->path);
1508	}
1509	else
1510	last->next = m->next;
1511
1512	free (m);
1513	}	839	}
1514		840
		841	void
		842	maptile::do_destroy ()
		843	{
		844	attachable::do_destroy ();
1515		845
		846	clear ();
		847	}
1516		848
1517	/*	849	/* decay and destroy perishable items in a map */
1518	* Makes sure the given map is loaded and swapped in.	850	// TODO: should be done regularly, not on map load?
1519	* name is path name of the map.	851	void
1520	* flags meaning:	852	maptile::do_decay_objects ()
1521	* 0x1 (MAP_FLUSH): flush the map - always load from the map directory,	853	{
1522	* and don't do unique items or the like.	854	if (!spaces)
1523	* 0x2 (MAP_PLAYER_UNIQUE) - this is a unique map for each player.
1524	* dont do any more name translation on it.
1525	*
1526	* Returns a pointer to the given map.
1527	*/
1528
1529	mapstruct *ready_map_name(const char *name, int flags) {
1530	mapstruct *m;
1531
1532	if (!name)
1533	return (NULL);
1534
1535	/* Have we been at this level before? */
1536	m = has_been_loaded (name);
1537
1538	/* Map is good to go, so just return it */
1539	if (m && (m->in_memory == MAP_LOADING || m->in_memory == MAP_IN_MEMORY)) {
1540	return m;
1541	}
1542
1543	/* unique maps always get loaded from their original location, and never
1544	* a temp location. Likewise, if map_flush is set, or we have never loaded
1545	* this map, load it now. I removed the reset checking from here -
1546	* it seems the probability of a player trying to enter a map that should
1547	* reset but hasn't yet is quite low, and removing that makes this function
1548	* a bit cleaner (and players probably shouldn't rely on exact timing for
1549	* resets in any case - if they really care, they should use the 'maps command.
1550	*/
1551	if ((flags & (MAP_FLUSH|MAP_PLAYER_UNIQUE)) || !m) {
1552
1553	/* first visit or time to reset */
1554	if (m) {
1555	clean_tmp_map(m); /* Doesn't make much difference */
1556	delete_map(m);
1557	}
1558
1559	/* create and load a map */
1560	if (flags & MAP_PLAYER_UNIQUE)
1561	LOG(llevDebug, "Trying to load map %s.\n", name);
1562	else
1563	LOG(llevDebug, "Trying to load map %s.\n", create_pathname(name));
1564
1565	if (!(m = load_original_map(name, (flags & MAP_PLAYER_UNIQUE))))
1566	return (NULL);
1567
1568	fix_auto_apply(m); /* Chests which open as default */
1569
1570	/* If a player unique map, no extra unique object file to load.
1571	* if from the editor, likewise.
1572	*/
1573	if (! (flags & (MAP_FLUSH|MAP_PLAYER_UNIQUE)))
1574	load_unique_objects(m);
1575
1576	if (! (flags & (MAP_FLUSH|MAP_PLAYER_UNIQUE|MAP_OVERLAY))) {
1577	m=load_overlay_map(name, m);
1578	if (m==NULL)
1579	return NULL;
1580	}
1581
1582	} else {
1583	/* If in this loop, we found a temporary map, so load it up. */
1584
1585	m=load_temporary_map (m);
1586	if(m==NULL) return NULL;
1587	load_unique_objects(m);
1588
1589	clean_tmp_map(m);
1590	m->in_memory = MAP_IN_MEMORY;
1591	/* tempnam() on sun systems (probably others) uses malloc
1592	* to allocated space for the string. Free it here.
1593	* In some cases, load_temporary_map above won't find the
1594	* temporary map, and so has reloaded a new map. If that
1595	* is the case, tmpname is now null
1596	*/
1597	if (m->tmpname) free(m->tmpname);
1598	m->tmpname = NULL;
1599	/* It's going to be saved anew anyway */
1600	}
1601
1602	/* Below here is stuff common to both first time loaded maps and
1603	* temp maps.
1604	*/
1605
1606	decay_objects(m); /* start the decay */
1607	/* In case other objects press some buttons down */
1608	update_buttons(m);
1609	if (m->outdoor)
1610	set_darkness_map(m);
1611	/* run the weather over this map */
1612	weather_effect(name);
1613	return m;	855	return;
1614	}
1615		856
		857	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		858	for (object *above, *op = ms->bot; op; op = above)
		859	{
		860	above = op->above;
		861
		862	// do not decay anything above unique floor tiles (yet :)
		863	if (op->flag [FLAG_IS_FLOOR] && op->flag [FLAG_UNIQUE])
		864	break;
		865
		866	bool destroy = 0;
		867
		868	if (op->flag [FLAG_IS_FLOOR]
		869	|| op->flag [FLAG_OBJ_ORIGINAL]
		870	|| op->flag [FLAG_UNIQUE]
		871	|| op->flag [FLAG_OVERLAY_FLOOR]
		872	|| op->flag [FLAG_UNPAID]
		873	|| op->is_alive ())
		874	; // do not decay
		875	else if (op->is_weapon ())
		876	{
		877	op->stats.dam--;
		878	if (op->stats.dam < 0)
		879	destroy = 1;
		880	}
		881	else if (op->is_armor ())
		882	{
		883	op->stats.ac--;
		884	if (op->stats.ac < 0)
		885	destroy = 1;
		886	}
		887	else if (op->type == FOOD)
		888	{
		889	op->stats.food -= rndm (5, 20);
		890	if (op->stats.food < 0)
		891	destroy = 1;
		892	}
		893	else
		894	{
		895	int mat = op->materials;
		896
		897	if (mat & M_PAPER
		898	|| mat & M_LEATHER
		899	|| mat & M_WOOD
		900	|| mat & M_ORGANIC
		901	|| mat & M_CLOTH
		902	|| mat & M_LIQUID
		903	|| (mat & M_IRON && rndm (1, 5) == 1)
		904	|| (mat & M_GLASS && rndm (1, 2) == 1)
		905	|| ((mat & M_STONE || mat & M_ADAMANT) && rndm (1, 10) == 1)
		906	|| ((mat & M_SOFT_METAL || mat & M_BONE) && rndm (1, 3) == 1)
		907	//|| (mat & M_ICE && temp > 32)
		908	)
		909	destroy = 1;
		910	}
		911
		912	/* adjust overall chance below */
		913	if (destroy && rndm (0, 1))
		914	op->destroy ();
		915	}
		916	}
1616		917
1617	/*	918	/*
1618	* This routine is supposed to find out the difficulty of the map.	919	* This routine is supposed to find out the difficulty of the map.
1619	* difficulty does not have a lot to do with character level,	920	* difficulty does not have a lot to do with character level,
1620	* but does have a lot to do with treasure on the map.	921	* but does have a lot to do with treasure on the map.
1621	*	922	*
1622	* Difficulty can now be set by the map creature. If the value stored	923	* Difficulty can now be set by the map creator. If the value stored
1623	* in the map is zero, then use this routine. Maps should really	924	* in the map is zero, then use this routine. Maps should really
1624	* have a difficulty set than using this function - human calculation	925	* have a difficulty set rather than using this function - human calculation
1625	* is much better than this functions guesswork.	926	* is much better than this function's guesswork.
1626	*/	927	*/
1627		928	int
1628	int calculate_difficulty(mapstruct *m) {	929	maptile::estimate_difficulty () const
1629	object *op;	930	{
1630	archetype *at;
1631	int x, y, i, diff;
1632	long monster_cnt = 0;	931	long monster_cnt = 0;
1633	double avgexp = 0;	932	double avgexp = 0;
1634	sint64 total_exp = 0;	933	sint64 total_exp = 0;
1635		934
1636	if (MAP_DIFFICULTY (m))	935	for (mapspace *ms = spaces + size (); ms-- > spaces; )
1637	{	936	for (object *op = ms->bot; op; op = op->above)
1638	LOG(llevDebug, "Using stored map difficulty: %d\n", MAP_DIFFICULTY (m));
1639	return MAP_DIFFICULTY (m);
1640	}
1641
1642	for(x = 0; x < MAP_WIDTH(m); x++)
1643	for(y = 0; y < MAP_HEIGHT(m); y++)
1644	for(op = get_map_ob(m, x, y); op != NULL; op = op->above)
1645	{	937	{
1646	if(QUERY_FLAG (op, FLAG_MONSTER))	938	if (op->flag [FLAG_MONSTER])
1647	{	939	{
1648	total_exp += op->stats.exp;	940	total_exp += op->stats.exp;
1649	monster_cnt++;	941	monster_cnt++;
1650	}	942	}
1651		943
1652	if(QUERY_FLAG (op, FLAG_GENERATOR))	944	if (op->flag [FLAG_GENERATOR])
1653	{	945	{
1654	total_exp += op->stats.exp;	946	total_exp += op->stats.exp;
1655	at = type_to_archetype(GENERATE_TYPE (op));
1656		947
1657	if(at != NULL)	948	if (archetype *at = op->other_arch)
		949	{
1658	total_exp += at->clone.stats.exp * 8;	950	total_exp += at->stats.exp * 8;
1659
1660	monster_cnt++;	951	monster_cnt++;
1661	}	952	}
		953
		954	for (object *inv = op->inv; inv; inv = inv->below)
		955	{
		956	total_exp += op->stats.exp * 8;
		957	monster_cnt++;
		958	}
1662	}	959	}
		960	}
1663		961
1664	avgexp = (double) total_exp / monster_cnt;	962	avgexp = (double) total_exp / monster_cnt;
1665		963
1666	for (i = 1; i <= settings.max_level; i++)	964	for (int i = 1; i <= settings.max_level; i++)
1667	{
1668	if ((level_exp (i, 1) - level_exp (i - 1, 1)) > (100 * avgexp))	965	if ((level_exp (i, 1) - level_exp (i - 1, 1)) > (100 * avgexp))
1669	{
1670	/* LOG(llevDebug, "Calculated difficulty for map: %s: %d\n", m->name, i); */
1671	return i;	966	return i;
1672	}
1673	}
1674		967
1675	return 1;	968	return 1;
1676	}
1677
1678	void clean_tmp_map(mapstruct *m) {
1679	if(m->tmpname == NULL)
1680	return;
1681	if (clean_temporary_map_callback)
1682	clean_temporary_map_callback (m);
1683	(void) unlink(m->tmpname);
1684	}
1685
1686	void free_all_maps(void)
1687	{
1688	int real_maps=0;
1689
1690	while (first_map) {
1691	/* I think some of the callers above before it gets here set this to be
1692	* saving, but we still want to free this data
1693	*/
1694	if (first_map->in_memory == MAP_SAVING) first_map->in_memory = MAP_IN_MEMORY;
1695	delete_map(first_map);
1696	real_maps++;
1697	}
1698	LOG(llevDebug,"free_all_maps: Freed %d maps\n", real_maps);
1699	}	969	}
1700		970
1701	/* change_map_light() - used to change map light level (darkness)	971	/* change_map_light() - used to change map light level (darkness)
1702	* up or down. Returns true if successful. It should now be	972	* up or down. Returns true if successful. It should now be
1703	* possible to change a value by more than 1.	973	* possible to change a value by more than 1.
1704	* Move this from los.c to map.c since this is more related	974	* Move this from los.c to map.c since this is more related
1705	* to maps than los.	975	* to maps than los.
1706	* postive values make it darker, negative make it brighter	976	* postive values make it darker, negative make it brighter
1707	*/	977	*/
1708		978	int
1709	int change_map_light(mapstruct *m, int change) {	979	maptile::change_map_light (int change)
1710	int new_level = m->darkness + change;	980	{
1711
1712	/* Nothing to do */	981	/* Nothing to do */
1713	if(!change || (new_level <= 0 && m->darkness == 0) ||	982	if (!change)
1714	(new_level >= MAX_DARKNESS && m->darkness >=MAX_DARKNESS)) {
1715	return 0;	983	return 0;
1716	}
1717		984
1718	/* inform all players on the map */	985	/* inform all players on the map */
1719	if (change>0)	986	if (change > 0)
1720	new_info_map(NDI_BLACK|NDI_UNIQUE, m,"It becomes darker.");	987	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes darker.");
1721	else	988	else
1722	new_info_map(NDI_BLACK|NDI_UNIQUE, m,"It becomes brighter.");	989	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes brighter.");
1723		990
1724	/* Do extra checking. since m->darkness is a unsigned value,	991	darkness = clamp (darkness + change, -MAX_DARKNESS, MAX_DARKNESS);
1725	* we need to be extra careful about negative values.
1726	* In general, the checks below are only needed if change
1727	* is not +/-1
1728	*/
1729	if (new_level < 0) m->darkness = 0;
1730	else if (new_level >=MAX_DARKNESS) m->darkness = MAX_DARKNESS;
1731	else m->darkness=new_level;
1732		992
1733	/* All clients need to get re-updated for the change */	993	/* All clients need to get re-updated for the change */
1734	update_all_map_los(m);	994	update_all_map_los (this);
		995
1735	return 1;	996	return 1;
1736	}	997	}
1737
1738		998
1739	/*	999	/*
1740	* This function updates various attributes about a specific space	1000	* This function updates various attributes about a specific space
1741	* on the map (what it looks like, whether it blocks magic,	1001	* on the map (what it looks like, whether it blocks magic,
1742	* has a living creatures, prevents people from passing	1002	* has a living creatures, prevents people from passing
1743	* through, etc)	1003	* through, etc)
1744	*/	1004	*/
1745	void update_position (mapstruct *m, int x, int y) {	1005	void
1746	object *tmp, *last = NULL;	1006	mapspace::update_ ()
1747	uint8 flags = 0, oldflags, light=0, anywhere=0;	1007	{
1748	New_Face *top,*floor, *middle;	1008	object *last = 0;
1749	object *top_obj, *floor_obj, *middle_obj;	1009	uint8 flags = P_UPTODATE;
		1010	sint8 light = 0;
1750	MoveType move_block=0, move_slow=0, move_on=0, move_off=0, move_allow=0;	1011	MoveType move_block = 0, move_slow = 0, move_on = 0, move_off = 0, move_allow = 0;
		1012	uint64_t volume = 0;
		1013	uint32_t items = 0;
		1014	object *anywhere = 0;
		1015	uint8_t middle_visibility = 0;
1751		1016
1752	oldflags = GET_MAP_FLAGS(m,x,y);	1017	//object *middle = 0;
1753	if (!(oldflags & P_NEED_UPDATE)) {	1018	//object *top = 0;
1754	LOG(llevDebug,"update_position called with P_NEED_UPDATE not set: %s (%d, %d)\n",	1019	//object *floor = 0;
1755	m->path, x, y);	1020	// this seems to generate better code than using locals, above
1756	return;	1021	object *&top = faces_obj[0] = 0;
		1022	object *&middle = faces_obj[1] = 0;
		1023	object *&floor = faces_obj[2] = 0;
		1024
		1025	object::flags_t allflags; // all flags of all objects or'ed together
		1026
		1027	for (object *tmp = bot; tmp; last = tmp, tmp = tmp->above)
1757	}	1028	{
		1029	// Lights are additive, up to MAX_LIGHT_RADIUS, see los.C)
		1030	light += tmp->glow_radius;
1758		1031
1759	middle=blank_face;
1760	top=blank_face;
1761	floor=blank_face;
1762
1763	middle_obj = NULL;
1764	top_obj = NULL;
1765	floor_obj = NULL;
1766
1767	for (tmp = get_map_ob (m, x, y); tmp; last = tmp, tmp = tmp->above) {
1768
1769	/* This could be made additive I guess (two lights better than
1770	* one). But if so, it shouldn't be a simple additive - 2
1771	* light bulbs do not illuminate twice as far as once since
1772	* it is a disapation factor that is squared (or is it cubed?)
1773	*/
1774	if (tmp->glow_radius > light) light = tmp->glow_radius;
1775
1776	/* This call is needed in order to update objects the player	1032	/* This call is needed in order to update objects the player
1777	* is standing in that have animations (ie, grass, fire, etc).	1033	* is standing in that have animations (ie, grass, fire, etc).
1778	* However, it also causes the look window to be re-drawn	1034	* However, it also causes the look window to be re-drawn
1779	* 3 times each time the player moves, because many of the	1035	* 3 times each time the player moves, because many of the
1780	* functions the move_player calls eventualy call this.	1036	* functions the move_player calls eventualy call this.
1781	*	1037	*
1782	* Always put the player down for drawing.	1038	* Always put the player down for drawing.
1783	*/	1039	*/
1784	if (!tmp->invisible) {	1040	if (expect_true (!tmp->invisible))
1785	if ((tmp->type==PLAYER || QUERY_FLAG(tmp, FLAG_MONSTER))) {	1041	{
1786	top = tmp->face;	1042	if (expect_false (tmp->type == PLAYER || tmp->flag [FLAG_MONSTER]))
1787	top_obj = tmp;	1043	top = tmp;
1788	}	1044	else if (expect_false (tmp->flag [FLAG_IS_FLOOR]))
1789	else if (QUERY_FLAG(tmp,FLAG_IS_FLOOR)) {	1045	{
1790	/* If we got a floor, that means middle and top were below it,	1046	/* If we got a floor, that means middle and top were below it,
1791	* so should not be visible, so we clear them.	1047	* so should not be visible, so we clear them.
1792	*/	1048	*/
1793	middle=blank_face;	1049	middle = 0;
1794	top=blank_face;	1050	top = 0;
1795	floor = tmp->face;	1051	floor = tmp;
1796	floor_obj = tmp;	1052	volume = 0;
1797	}	1053	items = 0;
		1054	}
		1055	else
		1056	{
		1057	if (expect_true (!tmp->flag [FLAG_NO_PICK]))
		1058	{
		1059	++items;
		1060	volume += tmp->volume ();
		1061	}
		1062
1798	/* Flag anywhere have high priority */	1063	/* Flag anywhere have high priority */
1799	else if (QUERY_FLAG(tmp, FLAG_SEE_ANYWHERE)) {	1064	if (expect_false (tmp->flag [FLAG_SEE_ANYWHERE]))
1800	middle = tmp->face;	1065	anywhere = tmp;
1801		1066
1802	middle_obj = tmp;
1803	anywhere =1;
1804	}
1805	/* Find the highest visible face around. If equal	1067	/* Find the highest visible face around. If equal
1806	* visibilities, we still want the one nearer to the	1068	* visibilities, we still want the one nearer to the
1807	* top	1069	* top
1808	*/	1070	*/
1809	else if (middle == blank_face || (tmp->face->visibility > middle->visibility && !anywhere)) {	1071	if (expect_false (::faces [tmp->face].visibility >= middle_visibility))
1810	middle = tmp->face;	1072	{
1811	middle_obj = tmp;	1073	middle_visibility = ::faces [tmp->face].visibility;
		1074	middle = tmp;
		1075	}
		1076	}
		1077	}
		1078
		1079	move_slow |= tmp->move_slow;
		1080	move_block |= tmp->move_block;
		1081	move_on |= tmp->move_on;
		1082	move_off |= tmp->move_off;
		1083	move_allow |= tmp->move_allow;
		1084
		1085	allflags |= tmp->flag;
		1086
		1087	if (tmp->type == PLAYER) flags |= P_PLAYER;
		1088	if (tmp->type == SAFE_GROUND) flags |= P_SAFE;
1812	}	1089	}
1813	}
1814	if (tmp==tmp->above) {
1815	LOG(llevError, "Error in structure of map\n");
1816	exit (-1);
1817	}
1818
1819	move_slow |= tmp->move_slow;
1820	move_block |= tmp->move_block;
1821	move_on |= tmp->move_on;
1822	move_off |= tmp->move_off;
1823	move_allow |= tmp->move_allow;
1824		1090
1825	if (QUERY_FLAG(tmp,FLAG_ALIVE))	1091	// FLAG_SEE_ANYWHERE takes precedence
1826	flags |= P_IS_ALIVE;	1092	if (anywhere)
1827	if (QUERY_FLAG(tmp,FLAG_NO_MAGIC))	1093	middle = anywhere;
1828	flags |= P_NO_MAGIC;
1829	if (QUERY_FLAG(tmp,FLAG_DAMNED))
1830	flags |= P_NO_CLERIC;
1831	if (tmp->type == SAFE_FLOOR)
1832	flags |= P_SAFE;
1833		1094
1834	if (QUERY_FLAG(tmp,FLAG_BLOCKSVIEW))	1095	// ORing all flags together and checking them here is much faster
1835	flags |= P_BLOCKSVIEW;	1096	if (allflags [FLAG_BLOCKSVIEW]) flags |= P_BLOCKSVIEW;
1836	} /* for stack of objects */	1097	if (allflags [FLAG_NO_MAGIC] ) flags |= P_NO_MAGIC;
		1098	if (allflags [FLAG_ALIVE] ) flags |= P_IS_ALIVE;
		1099	if (allflags [FLAG_DAMNED] ) flags |= P_NO_CLERIC;
1837		1100
1838	/* we don't want to rely on this function to have accurate flags, but	1101	this->light = min (light, MAX_LIGHT_RADIUS);
1839	* since we're already doing the work, we calculate them here.	1102	this->flags_ = flags;
1840	* if they don't match, logic is broken someplace.	1103	this->move_block = move_block & ~move_allow;
1841	*/	1104	this->move_on = move_on;
1842	if (((oldflags & ~(P_NEED_UPDATE|P_NO_ERROR)) != flags) &&	1105	this->move_off = move_off;
1843	(!(oldflags & P_NO_ERROR))) {	1106	this->move_slow = move_slow;
1844	LOG(llevDebug,"update_position: updated flags do not match old flags: %s (old=%d,new=%d) %x != %x\n",	1107	this->volume_ = (volume + 1023) / 1024;
1845	m->path, x, y,	1108	this->items_ = upos_min (items, 65535); // assume nrof <= 2**31
1846	(oldflags & ~P_NEED_UPDATE), flags);
1847	}
1848	SET_MAP_FLAGS(m, x, y, flags);
1849	SET_MAP_MOVE_BLOCK(m, x, y, move_block & ~move_allow);
1850	SET_MAP_MOVE_ON(m, x, y, move_on);
1851	SET_MAP_MOVE_OFF(m, x, y, move_off);
1852	SET_MAP_MOVE_SLOW(m, x, y, move_slow);
1853		1109
1854	/* At this point, we have a floor face (if there is a floor),	1110	/* At this point, we have a floor face (if there is a floor),
1855	* and the floor is set - we are not going to touch it at	1111	* and the floor is set - we are not going to touch it at
1856	* this point.	1112	* this point.
1857	* middle contains the highest visibility face.	1113	* middle contains the highest visibility face.
1858	* top contains a player/monster face, if there is one.	1114	* top contains a player/monster face, if there is one.
1859	*	1115	*
1860	* We now need to fill in top.face and/or middle.face.	1116	* We now need to fill in top.face and/or middle.face.
1861	*/	1117	*/
1862		1118
1863	/* If the top face also happens to be high visibility, re-do our	1119	/* If the top face also happens to be high visibility, re-do our
1864	* middle face. This should not happen, as we already have the	1120	* middle face. This should not happen, as we already have the
1865	* else statement above so middle should not get set. OTOH, it	1121	* else statement above so middle should not get set. OTOH, it
1866	* may be possible for the faces to match but be different objects.	1122	* may be possible for the faces to match but be different objects.
1867	*/	1123	*/
1868	if (top == middle) middle=blank_face;	1124	if (top == middle)
		1125	middle = 0;
1869		1126
1870	/* There are three posibilities at this point:	1127	/* There are three posibilities at this point:
1871	* 1) top face is set, need middle to be set.	1128	* 1) top face is set, need middle to be set.
1872	* 2) middle is set, need to set top.	1129	* 2) middle is set, need to set top.
1873	* 3) neither middle or top is set - need to set both.	1130	* 3) neither middle or top is set - need to set both.
1874	*/	1131	*/
1875		1132
1876	for (tmp=last; tmp; tmp=tmp->below) {	1133	for (object *tmp = last; tmp; tmp = tmp->below)
		1134	{
1877	/* Once we get to a floor, stop, since we already have a floor object */	1135	/* Once we get to a floor, stop, since we already have a floor object */
1878	if (QUERY_FLAG(tmp,FLAG_IS_FLOOR)) break;	1136	if (tmp->flag [FLAG_IS_FLOOR])
		1137	break;
1879		1138
1880	/* If two top faces are already set, quit processing */	1139	/* If two top faces are already set, quit processing */
1881	if ((top != blank_face) && (middle != blank_face)) break;	1140	if (top && middle)
		1141	break;
1882		1142
1883	/* Only show visible faces, unless its the editor - show all */	1143	/* Only show visible faces */
1884	if (!tmp->invisible || editor) {	1144	if (!tmp->invisible)
		1145	{
1885	/* Fill in top if needed */	1146	/* Fill in top if needed */
1886	if (top == blank_face) {	1147	if (!top)
1887	top = tmp->face;	1148	{
1888	top_obj = tmp;	1149	top = tmp;
1889	if (top == middle) middle=blank_face;	1150	if (top == middle)
1890	} else {	1151	middle = 0;
		1152	}
		1153	else
		1154	{
1891	/* top is already set - we should only get here if	1155	/* top is already set - we should only get here if
1892	* middle is not set	1156	* middle is not set
1893	*	1157	*
1894	* Set the middle face and break out, since there is nothing	1158	* Set the middle face and break out, since there is nothing
1895	* more to fill in. We don't check visiblity here, since	1159	* more to fill in. We don't check visiblity here, since
1896	*	1160	*
1897	*/	1161	*/
1898	if (tmp->face != top ) {	1162	if (tmp != top)
1899	middle = tmp->face;	1163	{
1900	middle_obj = tmp;	1164	middle = tmp;
1901	break;	1165	break;
1902	}	1166	}
		1167	}
		1168	}
1903	}	1169	}
1904	}	1170
		1171	if (middle == floor)
		1172	middle = 0;
		1173
		1174	if (top == middle)
		1175	middle = 0;
		1176
		1177	#if 0
		1178	faces_obj [0] = top;
		1179	faces_obj [1] = middle;
		1180	faces_obj [2] = floor;
		1181	#endif
		1182	}
		1183
		1184	maptile *
		1185	maptile::tile_available (int dir, bool load)
		1186	{
		1187	if (tile_path[dir])
1905	}	1188	{
1906	if (middle == floor) middle = blank_face;	1189	if (tile_map[dir] && (!load || tile_map[dir]->in_memory == MAP_ACTIVE))
1907	if (top == middle) middle = blank_face;	1190	return tile_map[dir];
1908	SET_MAP_FACE(m,x,y,top,0);
1909	if(top != blank_face)
1910	SET_MAP_FACE_OBJ(m,x,y,top_obj,0);
1911	else
1912	SET_MAP_FACE_OBJ(m,x,y,NULL,0);
1913	SET_MAP_FACE(m,x,y,middle,1);
1914	if(middle != blank_face)
1915	SET_MAP_FACE_OBJ(m,x,y,middle_obj,1);
1916	else
1917	SET_MAP_FACE_OBJ(m,x,y,NULL,1);
1918	SET_MAP_FACE(m,x,y,floor,2);
1919	if(floor != blank_face)
1920	SET_MAP_FACE_OBJ(m,x,y,floor_obj,2);
1921	else
1922	SET_MAP_FACE_OBJ(m,x,y,NULL,2);
1923	SET_MAP_LIGHT(m,x,y,light);
1924	}
1925		1191
		1192	if ((tile_map[dir] = find_async (tile_path[dir], this, load)))
		1193	return tile_map[dir];
		1194	}
1926		1195
1927	void set_map_reset_time(mapstruct *map) {	1196	return 0;
1928	int timeout;
1929
1930	timeout = MAP_RESET_TIMEOUT(map);
1931	if (timeout <= 0)
1932	timeout = MAP_DEFAULTRESET;
1933	if (timeout >= MAP_MAXRESET)
1934	timeout = MAP_MAXRESET;
1935	MAP_WHEN_RESET(map) = seconds()+timeout;
1936	}
1937
1938	/* this updates the orig_map->tile_map[tile_num] value after loading
1939	* the map. It also takes care of linking back the freshly loaded
1940	* maps tile_map values if it tiles back to this one. It returns
1941	* the value of orig_map->tile_map[tile_num]. It really only does this
1942	* so that it is easier for calling functions to verify success.
1943	*/
1944
1945	static mapstruct *load_and_link_tiled_map(mapstruct *orig_map, int tile_num)
1946	{
1947	int dest_tile = (tile_num +2) % 4;
1948	char *path = path_combine_and_normalize(orig_map->path, orig_map->tile_path[tile_num]);
1949
1950	orig_map->tile_map[tile_num] = ready_map_name(path, 0);
1951
1952	/* need to do a strcmp here as the orig_map->path is not a shared string */
1953	if (orig_map->tile_map[tile_num]->tile_path[dest_tile] &&
1954	!strcmp(orig_map->tile_map[tile_num]->tile_path[dest_tile], orig_map->path))
1955	orig_map->tile_map[tile_num]->tile_map[dest_tile] = orig_map;
1956
1957	return orig_map->tile_map[tile_num];
1958	}	1197	}
1959		1198
1960	/* this returns TRUE if the coordinates (x,y) are out of	1199	/* this returns TRUE if the coordinates (x,y) are out of
1961	* map m. This function also takes into account any	1200	* map m. This function also takes into account any
1962	* tiling considerations, loading adjacant maps as needed.	1201	* tiling considerations, loading adjacant maps as needed.
1963	* This is the function should always be used when it	1202	* This is the function should always be used when it
1964	* necessary to check for valid coordinates.	1203	* necessary to check for valid coordinates.
1965	* This function will recursively call itself for the	1204	* This function will recursively call itself for the
1966	* tiled maps.	1205	* tiled maps.
1967	*	1206	*/
1968	*	1207	int
1969	*/
1970	int out_of_map(mapstruct *m, int x, int y)	1208	out_of_map (maptile *m, int x, int y)
1971	{	1209	{
1972
1973	/* If we get passed a null map, this is obviously the	1210	/* If we get passed a null map, this is obviously the
1974	* case. This generally shouldn't happen, but if the	1211	* case. This generally shouldn't happen, but if the
1975	* map loads fail below, it could happen.	1212	* map loads fail below, it could happen.
1976	*/	1213	*/
1977	if (!m) return 0;	1214	if (!m)
1978
1979	if (x<0) {
1980	if (!m->tile_path[3]) return 1;
1981	if (!m->tile_map[3] || m->tile_map[3]->in_memory != MAP_IN_MEMORY) {
1982	load_and_link_tiled_map(m, 3);
1983	}
1984	return (out_of_map(m->tile_map[3], x + MAP_WIDTH(m->tile_map[3]), y));
1985	}
1986	if (x>=MAP_WIDTH(m)) {
1987	if (!m->tile_path[1]) return 1;
1988	if (!m->tile_map[1] || m->tile_map[1]->in_memory != MAP_IN_MEMORY) {
1989	load_and_link_tiled_map(m, 1);
1990	}
1991	return (out_of_map(m->tile_map[1], x - MAP_WIDTH(m), y));
1992	}
1993	if (y<0) {
1994	if (!m->tile_path[0]) return 1;
1995	if (!m->tile_map[0] || m->tile_map[0]->in_memory != MAP_IN_MEMORY) {
1996	load_and_link_tiled_map(m, 0);
1997	}
1998	return (out_of_map(m->tile_map[0], x, y + MAP_HEIGHT(m->tile_map[0])));
1999	}
2000	if (y>=MAP_HEIGHT(m)) {
2001	if (!m->tile_path[2]) return 1;
2002	if (!m->tile_map[2] || m->tile_map[2]->in_memory != MAP_IN_MEMORY) {
2003	load_and_link_tiled_map(m, 2);
2004	}
2005	return (out_of_map(m->tile_map[2], x, y - MAP_HEIGHT(m)));
2006	}
2007
2008	/* Simple case - coordinates are within this local
2009	* map.
2010	*/
2011	return 0;	1215	return 0;
		1216
		1217	if (x < 0)
		1218	{
		1219	if (!m->tile_available (3))
		1220	return 1;
		1221
		1222	return out_of_map (m->tile_map[3], x + m->tile_map[3]->width, y);
		1223	}
		1224
		1225	if (x >= m->width)
		1226	{
		1227	if (!m->tile_available (1))
		1228	return 1;
		1229
		1230	return out_of_map (m->tile_map[1], x - m->width, y);
		1231	}
		1232
		1233	if (y < 0)
		1234	{
		1235	if (!m->tile_available (0))
		1236	return 1;
		1237
		1238	return out_of_map (m->tile_map[0], x, y + m->tile_map[0]->height);
		1239	}
		1240
		1241	if (y >= m->height)
		1242	{
		1243	if (!m->tile_available (2))
		1244	return 1;
		1245
		1246	return out_of_map (m->tile_map[2], x, y - m->height);
		1247	}
		1248
		1249	/* Simple case - coordinates are within this local
		1250	* map.
		1251	*/
		1252	return 0;
2012	}	1253	}
2013		1254
2014	/* This is basically the same as out_of_map above, but	1255	/* This is basically the same as out_of_map above, but
2015	* instead we return NULL if no map is valid (coordinates	1256	* instead we return NULL if no map is valid (coordinates
2016	* out of bounds and no tiled map), otherwise it returns	1257	* out of bounds and no tiled map), otherwise it returns
2017	* the map as that the coordinates are really on, and	1258	* the map as that the coordinates are really on, and
2018	* updates x and y to be the localized coordinates.	1259	* updates x and y to be the localised coordinates.
2019	* Using this is more efficient of calling out_of_map	1260	* Using this is more efficient of calling out_of_map
2020	* and then figuring out what the real map is	1261	* and then figuring out what the real map is
2021	*/	1262	*/
2022	mapstruct *get_map_from_coord(mapstruct *m, sint16 *x, sint16 *y)	1263	maptile *
		1264	maptile::xy_find (sint16 &x, sint16 &y)
2023	{	1265	{
2024		1266	if (x < 0)
2025	if (*x<0) {
2026	if (!m->tile_path[3]) return NULL;
2027	if (!m->tile_map[3] || m->tile_map[3]->in_memory != MAP_IN_MEMORY)
2028	load_and_link_tiled_map(m, 3);
2029
2030	*x += MAP_WIDTH(m->tile_map[3]);
2031	return (get_map_from_coord(m->tile_map[3], x, y));
2032	}	1267	{
2033	if (*x>=MAP_WIDTH(m)) {	1268	if (!tile_available (3))
2034	if (!m->tile_path[1]) return NULL;	1269	return 0;
2035	if (!m->tile_map[1] || m->tile_map[1]->in_memory != MAP_IN_MEMORY)
2036	load_and_link_tiled_map(m, 1);
2037		1270
2038	*x -= MAP_WIDTH(m);	1271	x += tile_map[3]->width;
2039	return (get_map_from_coord(m->tile_map[1], x, y));	1272	return tile_map[3]->xy_find (x, y);
		1273	}
		1274
		1275	if (x >= width)
2040	}	1276	{
2041	if (*y<0) {	1277	if (!tile_available (1))
2042	if (!m->tile_path[0]) return NULL;	1278	return 0;
2043	if (!m->tile_map[0] || m->tile_map[0]->in_memory != MAP_IN_MEMORY)
2044	load_and_link_tiled_map(m, 0);
2045		1279
2046	*y += MAP_HEIGHT(m->tile_map[0]);	1280	x -= width;
2047	return (get_map_from_coord(m->tile_map[0], x, y));	1281	return tile_map[1]->xy_find (x, y);
		1282	}
		1283
		1284	if (y < 0)
2048	}	1285	{
2049	if (*y>=MAP_HEIGHT(m)) {	1286	if (!tile_available (0))
2050	if (!m->tile_path[2]) return NULL;	1287	return 0;
2051	if (!m->tile_map[2] || m->tile_map[2]->in_memory != MAP_IN_MEMORY)
2052	load_and_link_tiled_map(m, 2);
2053		1288
2054	*y -= MAP_HEIGHT(m);	1289	y += tile_map[0]->height;
2055	return (get_map_from_coord(m->tile_map[2], x, y));	1290	return tile_map[0]->xy_find (x, y);
		1291	}
		1292
		1293	if (y >= height)
2056	}	1294	{
		1295	if (!tile_available (2))
		1296	return 0;
2057		1297
		1298	y -= height;
		1299	return tile_map[2]->xy_find (x, y);
		1300	}
		1301
2058	/* Simple case - coordinates are within this local	1302	/* Simple case - coordinates are within this local
2059	* map.	1303	* map.
2060	*/	1304	*/
2061		1305	return this;
2062	return m;
2063	}	1306	}
2064		1307
2065	/**	1308	/**
2066	* Return whether map2 is adjacent to map1. If so, store the distance from	1309	* Return whether map2 is adjacent to map1. If so, store the distance from
2067	* map1 to map2 in dx/dy.	1310	* map1 to map2 in dx/dy.
2068	*/	1311	*/
		1312	int
2069	static int adjacent_map(const mapstruct *map1, const mapstruct *map2, int *dx, int *dy) {	1313	adjacent_map (const maptile *map1, const maptile *map2, int *dx, int *dy)
		1314	{
2070	if (!map1 || !map2)	1315	if (!map1 || !map2)
2071	return 0;	1316	return 0;
2072		1317
		1318	//TODO: this doesn't actually check correctly when intermediate maps are not loaded
		1319	//fix: compare paths instead (this is likely faster, too!)
2073	if (map1 == map2) {	1320	if (map1 == map2)
		1321	{
2074	*dx = 0;	1322	*dx = 0;
2075	*dy = 0;	1323	*dy = 0;
2076		1324	}
2077	} else if (map1->tile_map[0] == map2) { /* up */	1325	else if (map1->tile_map[0] == map2)
		1326	{ /* up */
2078	*dx = 0;	1327	*dx = 0;
2079	*dy = -MAP_HEIGHT(map2);	1328	*dy = -map2->height;
		1329	}
2080	} else if (map1->tile_map[1] == map2) { /* right */	1330	else if (map1->tile_map[1] == map2)
2081	*dx = MAP_WIDTH(map1);	1331	{ /* right */
		1332	*dx = map1->width;
2082	*dy = 0;	1333	*dy = 0;
		1334	}
2083	} else if (map1->tile_map[2] == map2) { /* down */	1335	else if (map1->tile_map[2] == map2)
		1336	{ /* down */
2084	*dx = 0;	1337	*dx = 0;
2085	*dy = MAP_HEIGHT(map1);	1338	*dy = map1->height;
		1339	}
2086	} else if (map1->tile_map[3] == map2) { /* left */	1340	else if (map1->tile_map[3] == map2)
2087	*dx = -MAP_WIDTH(map2);	1341	{ /* left */
		1342	*dx = -map2->width;
2088	*dy = 0;	1343	*dy = 0;
2089		1344	}
2090	} else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[1] == map2) { /* up right */	1345	else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[1] == map2)
		1346	{ /* up right */
2091	*dx = MAP_WIDTH(map1->tile_map[0]);	1347	*dx = map1->tile_map[0]->width;
2092	*dy = -MAP_HEIGHT(map1->tile_map[0]);	1348	*dy = -map1->tile_map[0]->height;
		1349	}
2093	} else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[3] == map2) { /* up left */	1350	else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[3] == map2)
2094	*dx = -MAP_WIDTH(map2);	1351	{ /* up left */
2095	*dy = -MAP_HEIGHT(map1->tile_map[0]);	1352	*dx = -map2->width;
		1353	*dy = -map1->tile_map[0]->height;
		1354	}
2096	} else if (map1->tile_map[1] && map1->tile_map[1]->tile_map[0] == map2) { /* right up */	1355	else if (map1->tile_map[1] && map1->tile_map[1]->tile_map[0] == map2)
2097	*dx = MAP_WIDTH(map1);	1356	{ /* right up */
2098	*dy = -MAP_HEIGHT(map2);	1357	*dx = map1->width;
		1358	*dy = -map2->height;
		1359	}
2099	} else if (map1->tile_map[1] && map1->tile_map[1]->tile_map[2] == map2) { /* right down */	1360	else if (map1->tile_map[1] && map1->tile_map[1]->tile_map[2] == map2)
2100	*dx = MAP_WIDTH(map1);	1361	{ /* right down */
2101	*dy = MAP_HEIGHT(map1->tile_map[1]);	1362	*dx = map1->width;
		1363	*dy = map1->tile_map[1]->height;
		1364	}
2102	} else if (map1->tile_map[2] && map1->tile_map[2]->tile_map[1] == map2) { /* down right */	1365	else if (map1->tile_map[2] && map1->tile_map[2]->tile_map[1] == map2)
		1366	{ /* down right */
2103	*dx = MAP_WIDTH(map1->tile_map[2]);	1367	*dx = map1->tile_map[2]->width;
2104	*dy = MAP_HEIGHT(map1);	1368	*dy = map1->height;
		1369	}
2105	} else if (map1->tile_map[2] && map1->tile_map[2]->tile_map[3] == map2) { /* down left */	1370	else if (map1->tile_map[2] && map1->tile_map[2]->tile_map[3] == map2)
2106	*dx = -MAP_WIDTH(map2);	1371	{ /* down left */
2107	*dy = MAP_HEIGHT(map1);	1372	*dx = -map2->width;
		1373	*dy = map1->height;
		1374	}
2108	} else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[0] == map2) { /* left up */	1375	else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[0] == map2)
		1376	{ /* left up */
2109	*dx = -MAP_WIDTH(map1->tile_map[3]);	1377	*dx = -map1->tile_map[3]->width;
2110	*dy = -MAP_HEIGHT(map2);	1378	*dy = -map2->height;
		1379	}
2111	} else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[2] == map2) { /* left down */	1380	else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[2] == map2)
		1381	{ /* left down */
2112	*dx = -MAP_WIDTH(map1->tile_map[3]);	1382	*dx = -map1->tile_map[3]->width;
2113	*dy = MAP_HEIGHT(map1->tile_map[3]);	1383	*dy = map1->tile_map[3]->height;
2114
2115	} else { /* not "adjacent" enough */
2116	return 0;
2117	}	1384	}
2118		1385	else
2119	return 1;	1386	return 0;
		1387
		1388	return 1;
		1389	}
		1390
		1391	maptile *
		1392	maptile::xy_load (sint16 &x, sint16 &y)
		1393	{
		1394	maptile *map = xy_find (x, y);
		1395
		1396	if (map)
		1397	map->load_sync ();
		1398
		1399	return map;
		1400	}
		1401
		1402	maptile *
		1403	get_map_from_coord (maptile *m, sint16 *x, sint16 *y)
		1404	{
		1405	return m->xy_load (*x, *y);
2120	}	1406	}
2121		1407
2122	/* From map.c	1408	/* From map.c
2123	* This is used by get_player to determine where the other	1409	* This is used by get_player to determine where the other
2124	* creature is. get_rangevector takes into account map tiling,	1410	* creature is. get_rangevector takes into account map tiling,
2125	* so you just can not look the the map coordinates and get the	1411	* so you just can not look the the map coordinates and get the
2126	* righte value. distance_x/y are distance away, which	1412	* righte value. distance_x/y are distance away, which
2127	* can be negativbe. direction is the crossfire direction scheme	1413	* can be negative. direction is the crossfire direction scheme
2128	* that the creature should head. part is the part of the	1414	* that the creature should head. part is the part of the
2129	* monster that is closest.	1415	* monster that is closest.
2130	*	1416	*
2131	* get_rangevector looks at op1 and op2, and fills in the	1417	* get_rangevector looks at op1 and op2, and fills in the
2132	* structure for op1 to get to op2.	1418	* structure for op1 to get to op2.
…		…
2137	* be unexpected	1423	* be unexpected
2138	*	1424	*
2139	* currently, the only flag supported (0x1) is don't translate for	1425	* currently, the only flag supported (0x1) is don't translate for
2140	* closest body part of 'op1'	1426	* closest body part of 'op1'
2141	*/	1427	*/
2142		1428	void
2143	void get_rangevector(object *op1, object *op2, rv_vector *retval, int flags) {	1429	get_rangevector (object *op1, object *op2, rv_vector *retval, int flags)
		1430	{
2144	if (!adjacent_map(op1->map, op2->map, &retval->distance_x, &retval->distance_y)) {	1431	if (!adjacent_map (op1->map, op2->map, &retval->distance_x, &retval->distance_y))
		1432	{
2145	/* be conservative and fill in _some_ data */	1433	/* be conservative and fill in _some_ data */
2146	retval->distance = 100000;	1434	retval->distance = 10000;
2147	retval->distance_x = 32767;	1435	retval->distance_x = 10000;
2148	retval->distance_y = 32767;	1436	retval->distance_y = 10000;
2149	retval->direction = 0;	1437	retval->direction = 0;
2150	retval->part = 0;	1438	retval->part = 0;
2151	} else {	1439	}
2152	object *best;	1440	else
2153		1441	{
2154	retval->distance_x += op2->x-op1->x;	1442	retval->distance_x += op2->x - op1->x;
2155	retval->distance_y += op2->y-op1->y;	1443	retval->distance_y += op2->y - op1->y;
2156		1444
2157	best = op1;	1445	object *best = op1;
		1446
2158	/* If this is multipart, find the closest part now */	1447	/* If this is multipart, find the closest part now */
2159	if (!(flags&0x1) && op1->more) {	1448	if (!(flags & 1) && op1->more)
2160	object *tmp;	1449	{
2161	int best_distance = retval->distance_x*retval->distance_x+	1450	int best_distance = retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y, tmpi;
2162	retval->distance_y*retval->distance_y, tmpi;
2163		1451
2164	/* we just take the offset of the piece to head to figure	1452	/* we just take the offset of the piece to head to figure
2165	* distance instead of doing all that work above again	1453	* distance instead of doing all that work above again
2166	* since the distance fields we set above are positive in the	1454	* since the distance fields we set above are positive in the
2167	* same axis as is used for multipart objects, the simply arithmetic	1455	* same axis as is used for multipart objects, the simply arithmetic
2168	* below works.	1456	* below works.
2169	*/	1457	*/
2170	for (tmp = op1->more; tmp != NULL; tmp = tmp->more) {	1458	for (object *tmp = op1->more; tmp; tmp = tmp->more)
		1459	{
2171	tmpi = (op1->x-tmp->x+retval->distance_x)*(op1->x-tmp->x+retval->distance_x)+	1460	tmpi = (op1->x - tmp->x + retval->distance_x) * (op1->x - tmp->x + retval->distance_x) +
2172	(op1->y-tmp->y+retval->distance_y)*(op1->y-tmp->y+retval->distance_y);	1461	(op1->y - tmp->y + retval->distance_y) * (op1->y - tmp->y + retval->distance_y);
2173	if (tmpi < best_distance) {	1462	if (tmpi < best_distance)
		1463	{
2174	best_distance = tmpi;	1464	best_distance = tmpi;
2175	best = tmp;	1465	best = tmp;
2176	}	1466	}
2177	}	1467	}
		1468
2178	if (best != op1) {	1469	if (best != op1)
		1470	{
2179	retval->distance_x += op1->x-best->x;	1471	retval->distance_x += op1->x - best->x;
2180	retval->distance_y += op1->y-best->y;	1472	retval->distance_y += op1->y - best->y;
2181	}	1473	}
2182	}	1474	}
		1475
2183	retval->part = best;	1476	retval->part = best;
2184	retval->distance = isqrt(retval->distance_x*retval->distance_x+retval->distance_y*retval->distance_y);	1477	retval->distance = upos_max (abs (retval->distance_x), abs (retval->distance_y));
2185	retval->direction = find_dir_2(-retval->distance_x, -retval->distance_y);	1478	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);
2186	}	1479	}
2187	}	1480	}
2188		1481
2189	/* this is basically the same as get_rangevector above, but instead of	1482	/* this is basically the same as get_rangevector above, but instead of
2190	* the first parameter being an object, it instead is the map	1483	* the first parameter being an object, it instead is the map
…		…
2194	* flags has no meaning for this function at this time - I kept it in to	1487	* flags has no meaning for this function at this time - I kept it in to
2195	* be more consistant with the above function and also in case they are needed	1488	* be more consistant with the above function and also in case they are needed
2196	* for something in the future. Also, since no object is pasted, the best	1489	* for something in the future. Also, since no object is pasted, the best
2197	* field of the rv_vector is set to NULL.	1490	* field of the rv_vector is set to NULL.
2198	*/	1491	*/
2199		1492	void
2200	void get_rangevector_from_mapcoord(const mapstruct *m, int x, int y, const object *op2, rv_vector *retval, int flags) {	1493	get_rangevector_from_mapcoord (const maptile *m, int x, int y, const object *op2, rv_vector *retval, int flags)
		1494	{
2201	if (!adjacent_map(m, op2->map, &retval->distance_x, &retval->distance_y)) {	1495	if (!adjacent_map (m, op2->map, &retval->distance_x, &retval->distance_y))
		1496	{
2202	/* be conservative and fill in _some_ data */	1497	/* be conservative and fill in _some_ data */
2203	retval->distance = 100000;	1498	retval->distance = 100000;
2204	retval->distance_x = 32767;	1499	retval->distance_x = 32767;
2205	retval->distance_y = 32767;	1500	retval->distance_y = 32767;
2206	retval->direction = 0;	1501	retval->direction = 0;
2207	retval->part = 0;	1502	retval->part = 0;
2208	} else {	1503	}
		1504	else
		1505	{
2209	retval->distance_x += op2->x-x;	1506	retval->distance_x += op2->x - x;
2210	retval->distance_y += op2->y-y;	1507	retval->distance_y += op2->y - y;
2211		1508
2212	retval->part = NULL;	1509	retval->part = 0;
2213	retval->distance = isqrt(retval->distance_x*retval->distance_x+retval->distance_y*retval->distance_y);	1510	retval->distance = upos_max (abs (retval->distance_x), abs (retval->distance_y));
2214	retval->direction = find_dir_2(-retval->distance_x, -retval->distance_y);	1511	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);
2215	}	1512	}
2216	}	1513	}
2217		1514
2218	/* Returns true of op1 and op2 are effectively on the same map	1515	/* Returns true of op1 and op2 are effectively on the same map
2219	* (as related to map tiling). Note that this looks for a path from	1516	* (as related to map tiling). Note that this looks for a path from
2220	* op1 to op2, so if the tiled maps are assymetric and op2 has a path	1517	* op1 to op2, so if the tiled maps are asymetric and op2 has a path
2221	* to op1, this will still return false.	1518	* to op1, this will still return false.
2222	* Note we only look one map out to keep the processing simple	1519	* Note we only look one map out to keep the processing simple
2223	* and efficient. This could probably be a macro.	1520	* and efficient. This could probably be a macro.
2224	* MSW 2001-08-05	1521	* MSW 2001-08-05
2225	*/	1522	*/
		1523	int
2226	int on_same_map(const object *op1, const object *op2) {	1524	on_same_map (const object *op1, const object *op2)
		1525	{
2227	int dx, dy;	1526	int dx, dy;
2228		1527
2229	return adjacent_map(op1->map, op2->map, &dx, &dy);	1528	return adjacent_map (op1->map, op2->map, &dx, &dy);
2230	}	1529	}
		1530
		1531	//-GPL
		1532
		1533	object *
		1534	maptile::insert (object *op, int x, int y, object *originator, int flags)
		1535	{
		1536	return insert_ob_in_map_at (op, this, originator, flags, x, y);
		1537	}
		1538
		1539	region *
		1540	maptile::region (int x, int y) const
		1541	{
		1542	if (regions
		1543	&& regionmap
		1544	&& !OUT_OF_REAL_MAP (this, x, y))
		1545	if (struct region *reg = regionmap [regions [y * width + x]])
		1546	return reg;
		1547
		1548	if (default_region)
		1549	return default_region;
		1550
		1551	return ::region::default_region ();
		1552	}
		1553
		1554	//+GPL
		1555
		1556	/* picks a random object from a style map.
		1557	*/
		1558	object *
		1559	maptile::pick_random_object (rand_gen &gen) const
		1560	{
		1561	/* while returning a null object will result in a crash, that
		1562	* is actually preferable to an infinite loop. That is because
		1563	* most servers will automatically restart in case of crash.
		1564	* Change the logic on getting the random space - shouldn't make
		1565	* any difference, but this seems clearer to me.
		1566	*/
		1567	for (int i = 1000; --i;)
		1568	{
		1569	object *pick = at (gen (width), gen (height)).bot;
		1570
		1571	// must be head: do not prefer big monsters just because they are big.
		1572	if (pick && pick->is_head ())
		1573	return pick;
		1574	}
		1575
		1576	// instead of crashing in the unlikely(?) case, try to return *something*
		1577	return archetype::find (shstr_bug);
		1578	}
		1579
		1580	//-GPL
		1581
		1582	void
		1583	maptile::play_sound (faceidx sound, int x, int y) const
		1584	{
		1585	if (!sound)
		1586	return;
		1587
		1588	for_all_players_on_map (pl, this)
		1589	if (client *ns = pl->ns)
		1590	{
		1591	int dx = x - pl->ob->x;
		1592	int dy = y - pl->ob->y;
		1593
		1594	int distance = idistance (dx, dy);
		1595
		1596	if (distance <= MAX_SOUND_DISTANCE)
		1597	ns->play_sound (sound, dx, dy);
		1598	}
		1599	}
		1600
		1601	void
		1602	maptile::say_msg (const char *msg, int x, int y) const
		1603	{
		1604	for_all_players (pl)
		1605	if (client *ns = pl->ns)
		1606	{
		1607	int dx = x - pl->ob->x;
		1608	int dy = y - pl->ob->y;
		1609
		1610	int distance = idistance (dx, dy);
		1611
		1612	if (distance <= MAX_SOUND_DISTANCE)
		1613	ns->send_msg (NDI_GREY | NDI_DEF, SAY_CHANNEL, msg);
		1614	}
		1615	}
		1616
		1617	dynbuf mapwalk_buf (sizeof (maprect) * 25, sizeof (maprect) * 25);
		1618
		1619	static void
		1620	split_to_tiles (dynbuf &buf, maptile *m, int x0, int y0, int x1, int y1, int dx, int dy)
		1621	{
		1622	// clip to map to the left
		1623	if (x0 < 0)
		1624	{
		1625	if (maptile *tile = m->tile_available (TILE_LEFT, 1))
		1626	split_to_tiles (buf, tile, x0 + tile->width, y0, min (x1 + tile->width, tile->width), y1, dx - tile->width, dy);
		1627
		1628	if (x1 < 0) // entirely to the left
		1629	return;
		1630
		1631	x0 = 0;
		1632	}
		1633
		1634	// clip to map to the right
		1635	if (x1 > m->width)
		1636	{
		1637	if (maptile *tile = m->tile_available (TILE_RIGHT, 1))
		1638	split_to_tiles (buf, tile, max (x0 - m->width, 0), y0, x1 - m->width, y1, dx + m->width, dy);
		1639
		1640	if (x0 > m->width) // entirely to the right
		1641	return;
		1642
		1643	x1 = m->width;
		1644	}
		1645
		1646	// clip to map above
		1647	if (y0 < 0)
		1648	{
		1649	if (maptile *tile = m->tile_available (TILE_UP, 1))
		1650	split_to_tiles (buf, tile, x0, y0 + tile->height, x1, min (y1 + tile->height, tile->height), dx, dy - tile->height);
		1651
		1652	if (y1 < 0) // entirely above
		1653	return;
		1654
		1655	y0 = 0;
		1656	}
		1657
		1658	// clip to map below
		1659	if (y1 > m->height)
		1660	{
		1661	if (maptile *tile = m->tile_available (TILE_DOWN, 1))
		1662	split_to_tiles (buf, tile, x0, max (y0 - m->height, 0), x1, y1 - m->height, dx, dy + m->height);
		1663
		1664	if (y0 > m->height) // entirely below
		1665	return;
		1666
		1667	y1 = m->height;
		1668	}
		1669
		1670	// if we get here, the rect is within the current map
		1671	maprect *r = (maprect *)buf.alloc (sizeof (maprect));
		1672
		1673	r->m = m;
		1674	r->x0 = x0;
		1675	r->y0 = y0;
		1676	r->x1 = x1;
		1677	r->y1 = y1;
		1678	r->dx = dx;
		1679	r->dy = dy;
		1680	}
		1681
		1682	maprect *
		1683	maptile::split_to_tiles (dynbuf &buf, int x0, int y0, int x1, int y1)
		1684	{
		1685	buf.clear ();
		1686
		1687	::split_to_tiles (buf, this, x0, y0, x1, y1, 0, 0);
		1688
		1689	// add end marker
		1690	maprect *r = (maprect *)buf.alloc (sizeof (maprect));
		1691	r->m = 0;
		1692
		1693	return (maprect *)buf.linearise ();
		1694	}
		1695

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