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Comparing deliantra/server/common/map.C (file contents):
Revision 1.29 by root, Sun Sep 10 16:00:23 2006 UTC vs.
Revision 1.191 by root, Sun Apr 18 05:57:03 2010 UTC

1
2	/*	1	/*
3	* static char *rcsid_map_c =	2	* This file is part of Deliantra, the Roguelike Realtime MMORPG.
4	* "$Id: map.C,v 1.29 2006/09/10 16:00:23 root Exp $";	3	*
5	*/	4	* Copyright (©) 2005,2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
6
7	/*
8	CrossFire, A Multiplayer game for X-windows
9
10	Copyright (C) 2001-2003 Mark Wedel & Crossfire Development Team	5	* Copyright (©) 2001-2003 Mark Wedel & Crossfire Development Team
11	Copyright (C) 1992 Frank Tore Johansen	6	* Copyright (©) 1992 Frank Tore Johansen
12		7	*
13	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
14	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
15	the Free Software Foundation; either version 2 of the License, or	10	* Free Software Foundation, either version 3 of the License, or (at your
16	(at your option) any later version.	11	* option) any later version.
17		12	*
18	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,
19	but WITHOUT ANY WARRANTY; without even the implied warranty of	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
20	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21	GNU General Public License for more details.	16	* GNU General Public License for more details.
22		17	*
23	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
24	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
25	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	20	* <http://www.gnu.org/licenses/>.
26		21	*
27	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>
28	*/	23	*/
29		24
30
31	#include <global.h>
32	#include <funcpoint.h>
33
34	#include <loader.h>
35	#ifndef WIN32 /* ---win32 exclude header */
36	# include <unistd.h>	25	#include <unistd.h>
37	#endif /* win32 */
38		26
		27	#include "global.h"
39	#include "path.h"	28	#include "path.h"
40		29
		30	//+GPL
41		31
42	extern int nrofallocobjects, nroffreeobjects;	32	sint8 maptile::outdoor_darkness;
43
44	/*
45	* Returns the mapstruct which has a name matching the given argument.
46	* return NULL if no match is found.
47	*/
48
49	mapstruct *
50	has_been_loaded (const char *name)
51	{
52	mapstruct *map;
53
54	if (!name || !*name)
55	return 0;
56	for (map = first_map; map; map = map->next)
57	if (!strcmp (name, map->path))
58	break;
59	return (map);
60	}
61
62	/*
63	* This makes a path absolute outside the world of Crossfire.
64	* In other words, it prepends LIBDIR/MAPDIR/ to the given path
65	* and returns the pointer to a static array containing the result.
66	* it really should be called create_mapname
67	*/
68
69	const char *
70	create_pathname (const char *name)
71	{
72	static char buf[MAX_BUF];
73
74	/* Why? having extra / doesn't confuse unix anyplace? Dependancies
75	* someplace else in the code? msw 2-17-97
76	*/
77	if (*name == '/')
78	sprintf (buf, "%s/%s%s", settings.datadir, settings.mapdir, name);
79	else
80	sprintf (buf, "%s/%s/%s", settings.datadir, settings.mapdir, name);
81	return (buf);
82	}
83
84	/*
85	* same as create_pathname, but for the overlay maps.
86	*/
87
88	const char *
89	create_overlay_pathname (const char *name)
90	{
91	static char buf[MAX_BUF];
92
93	/* Why? having extra / doesn't confuse unix anyplace? Dependancies
94	* someplace else in the code? msw 2-17-97
95	*/
96	if (*name == '/')
97	sprintf (buf, "%s/%s%s", settings.localdir, settings.mapdir, name);
98	else
99	sprintf (buf, "%s/%s/%s", settings.localdir, settings.mapdir, name);
100	return (buf);
101	}
102
103	/*
104	* same as create_pathname, but for the template maps.
105	*/
106
107	const char *
108	create_template_pathname (const char *name)
109	{
110	static char buf[MAX_BUF];
111
112	/* Why? having extra / doesn't confuse unix anyplace? Dependancies
113	* someplace else in the code? msw 2-17-97
114	*/
115	if (*name == '/')
116	sprintf (buf, "%s/%s%s", settings.localdir, settings.templatedir, name);
117	else
118	sprintf (buf, "%s/%s/%s", settings.localdir, settings.templatedir, name);
119	return (buf);
120	}
121
122	/*
123	* This makes absolute path to the itemfile where unique objects
124	* will be saved. Converts '/' to '@'. I think it's essier maintain
125	* files than full directory structure, but if this is problem it can
126	* be changed.
127	*/
128	static const char *
129	create_items_path (const char *s)
130	{
131	static char buf[MAX_BUF];
132	char *t;
133
134	if (*s == '/')
135	s++;
136
137	sprintf (buf, "%s/%s/", settings.localdir, settings.uniquedir);
138
139	for (t = buf + strlen (buf); *s; s++, t++)
140	if (*s == '/')
141	*t = '@';
142	else
143	*t = *s;
144	*t = 0;
145	return (buf);
146	}
147
148
149	/*
150	* This function checks if a file with the given path exists.
151	* -1 is returned if it fails, otherwise the mode of the file
152	* is returned.
153	* It tries out all the compression suffixes listed in the uncomp[] array.
154	*
155	* If prepend_dir is set, then we call create_pathname (which prepends
156	* libdir & mapdir). Otherwise, we assume the name given is fully
157	* complete.
158	* Only the editor actually cares about the writablity of this -
159	* the rest of the code only cares that the file is readable.
160	* when the editor goes away, the call to stat should probably be
161	* replaced by an access instead (similar to the windows one, but
162	* that seems to be missing the prepend_dir processing
163	*/
164
165	int
166	check_path (const char *name, int prepend_dir)
167	{
168	char buf[MAX_BUF];
169
170	#ifndef WIN32
171	char *endbuf;
172	struct stat statbuf;
173	int mode = 0;
174	#endif
175
176	if (prepend_dir)
177	strcpy (buf, create_pathname (name));
178	else
179	strcpy (buf, name);
180	#ifdef WIN32 /* ***win32: check this sucker in windows style. */
181	return (_access (buf, 0));
182	#else
183
184	/* old method (strchr(buf, '\0')) seemd very odd to me -
185	* this method should be equivalant and is clearer.
186	* Can not use strcat because we need to cycle through
187	* all the names.
188	*/
189	endbuf = buf + strlen (buf);
190
191	if (stat (buf, &statbuf))
192	return -1;
193	if (!S_ISREG (statbuf.st_mode))
194	return (-1);
195
196	if (((statbuf.st_mode & S_IRGRP) && getegid () == statbuf.st_gid) ||
197	((statbuf.st_mode & S_IRUSR) && geteuid () == statbuf.st_uid) || (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) || (statbuf.st_mode & S_IWOTH))
202	mode |= 2;
203
204	return (mode);
205	#endif
206	}
207
208	/*
209	* Prints out debug-information about a map.
210	* Dumping these at llevError doesn't seem right, but is
211	* necessary to make sure the information is in fact logged.
212	*/
213
214	void
215	dump_map (const mapstruct *m)
216	{
217	LOG (llevError, "Map %s status: %d.\n", m->path, m->in_memory);
218	LOG (llevError, "Size: %dx%d Start: %d,%d\n", MAP_WIDTH (m), MAP_HEIGHT (m), MAP_ENTER_X (m), MAP_ENTER_Y (m));
219
220	if (m->msg != NULL)
221	LOG (llevError, "Message:\n%s", m->msg);
222
223	if (m->maplore != NULL)
224	LOG (llevError, "Lore:\n%s", m->maplore);
225
226	if (m->tmpname != NULL)
227	LOG (llevError, "Tmpname: %s\n", m->tmpname);
228
229	LOG (llevError, "Difficulty: %d\n", m->difficulty);
230	LOG (llevError, "Darkness: %d\n", m->darkness);
231	}
232
233	/*
234	* Prints out debug-information about all maps.
235	* This basically just goes through all the maps and calls
236	* dump_map on each one.
237	*/
238
239	void
240	dump_all_maps (void)
241	{
242	mapstruct *m;
243
244	for (m = first_map; m != NULL; m = m->next)
245	{
246	dump_map (m);
247	}
248	}
249		33
250	/* This rolls up wall, blocks_magic, blocks_view, etc, all into	34	/* This rolls up wall, blocks_magic, blocks_view, etc, all into
251	* one function that just returns a P_.. value (see map.h)	35	* one function that just returns a P_.. value (see map.h)
252	* it will also do map translation for tiled maps, returning	36	* it will also do map translation for tiled maps, returning
253	* 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
…		…
256	* 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
257	* checking for the existence of something on those spaces, but	41	* checking for the existence of something on those spaces, but
258	* don't expect to insert/remove anything from those spaces.	42	* don't expect to insert/remove anything from those spaces.
259	*/	43	*/
260	int	44	int
261	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)
262	{	46	{
263	sint16 newx, newy;	47	sint16 newx = x;
264	int retval = 0;	48	sint16 newy = y;
265	mapstruct *mp;
266		49
267	if (out_of_map (oldmap, x, y))	50	maptile *mp = get_map_from_coord (oldmap, &newx, &newy);
		51
		52	if (!mp)
268	return P_OUT_OF_MAP;	53	return P_OUT_OF_MAP;
269	newx = x;
270	newy = y;
271	mp = get_map_from_coord (oldmap, &newx, &newy);
272	if (mp != oldmap)
273	retval |= P_NEW_MAP;
274	if (newmap)
275	*newmap = mp;
276	if (nx)
277	*nx = newx;
278	if (ny)
279	*ny = newy;
280		54
281	retval |= mp->spaces[newx + mp->width * newy].flags;	55	if (newmap) *newmap = mp;
		56	if (nx) *nx = newx;
		57	if (ny) *ny = newy;
282		58
283	return retval;	59	return mp->at (newx, newy).flags () | (mp != oldmap ? P_NEW_MAP : 0);
284	}	60	}
285
286		61
287	/*	62	/*
288	* Returns true if the given coordinate is blocked except by the	63	* Returns true if the given coordinate is blocked except by the
289	* object passed is not blocking. This is used with	64	* object passed is not blocking. This is used with
290	* multipart monsters - if we want to see if a 2x2 monster	65	* multipart monsters - if we want to see if a 2x2 monster
…		…
294	* monster.	69	* monster.
295	* 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.
296	* the coordinates & map passed in should have been updated for tiling	71	* the coordinates & map passed in should have been updated for tiling
297	* by the caller.	72	* by the caller.
298	*/	73	*/
299
300	int	74	int
301	blocked_link (object *ob, mapstruct *m, int sx, int sy)	75	blocked_link (object *ob, maptile *m, int sx, int sy)
302	{	76	{
303	object *tmp;
304	int mflags, blocked;
305
306	/* 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
307	* have already checked this.	78	* have already checked this.
308	*/	79	*/
309	if (OUT_OF_REAL_MAP (m, sx, sy))	80	if (OUT_OF_REAL_MAP (m, sx, sy))
310	{	81	{
311	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");
312	return 1;	83	return 1;
313	}	84	}
314		85
315	/* Save some cycles - instead of calling get_map_flags(), just get the value	86	mapspace &ms = m->at (sx, sy);
316	* directly.
317	*/
318	mflags = m->spaces[sx + m->width * sy].flags;
319		87
320	blocked = GET_MAP_MOVE_BLOCK (m, sx, sy);	88	int mflags = ms.flags ();
		89	int blocked = ms.move_block;
321		90
322	/* If space is currently not blocked by anything, no need to	91	/* If space is currently not blocked by anything, no need to
323	* go further. Not true for players - all sorts of special	92	* go further. Not true for players - all sorts of special
324	* things we need to do for players.	93	* things we need to do for players.
325	*/	94	*/
326	if (ob->type != PLAYER && !(mflags & P_IS_ALIVE) && (blocked == 0))	95	if (ob->type != PLAYER && !(mflags & P_IS_ALIVE) && (blocked == 0))
327	return 0;	96	return 0;
328		97
329	/* if there isn't anytyhing alive on this space, and this space isn't	98	/* if there isn't anything alive on this space, and this space isn't
330	* otherwise blocked, we can return now. Only if there is a living	99	* otherwise blocked, we can return now. Only if there is a living
331	* creature do we need to investigate if it is part of this creature	100	* creature do we need to investigate if it is part of this creature
332	* or another. Likewise, only if something is blocking us do we	101	* or another. Likewise, only if something is blocking us do we
333	* need to investigate if there is a special circumstance that would	102	* need to investigate if there is a special circumstance that would
334	* let the player through (inventory checkers for example)	103	* let the player through (inventory checkers for example)
335	*/	104	*/
336	if (!(mflags & P_IS_ALIVE) && !OB_TYPE_MOVE_BLOCK (ob, blocked))	105	if (!(mflags & P_IS_ALIVE) && !OB_TYPE_MOVE_BLOCK (ob, blocked))
337	return 0;	106	return 0;
338		107
339	if (ob->head != NULL)
340	ob = ob->head;	108	ob = ob->head_ ();
341		109
342	/* We basically go through the stack of objects, and if there is	110	/* We basically go through the stack of objects, and if there is
343	* some other object that has NO_PASS or FLAG_ALIVE set, return	111	* some other object that has NO_PASS or FLAG_ALIVE set, return
344	* true. If we get through the entire stack, that must mean	112	* true. If we get through the entire stack, that must mean
345	* ob is blocking it, so return 0.	113	* ob is blocking it, so return 0.
346	*/	114	*/
347	for (tmp = GET_MAP_OB (m, sx, sy); tmp != NULL; tmp = tmp->above)	115	for (object *tmp = ms.top; tmp; tmp = tmp->below)
348	{	116	{
349		117	if (OB_MOVE_BLOCK (ob, tmp))
350	/* This must be before the checks below. Code for inventory checkers. */
351	if (tmp->type == CHECK_INV && OB_MOVE_BLOCK (ob, tmp))
352	{	118	{
353	/* If last_sp is set, the player/monster needs an object,	119	if (INVOKE_OBJECT (BLOCKED_MOVE, tmp, ob))
354	* so we check for it. If they don't have it, they can't	120	if (RESULT_INT (0))
355	* pass through this space.	121	return 1;
356	*/	122	else
357	if (tmp->last_sp)	123	continue;
		124
		125	if (tmp->type == CHECK_INV)
358	{	126	{
359	if (check_inv_recursive (ob, tmp) == NULL)	127	bool have = check_inv_recursive (ob, tmp);
		128
		129	// last_sp set means we block if we don't have.
		130	if (logical_xor (have, tmp->last_sp))
360	return 1;	131	return 1;
361	else	132	}
362	continue;	133	else if (tmp->type == T_MATCH)
		134	{
		135	// T_MATCH allows "entrance" iff the match is true
		136	// == blocks if the match fails
		137
		138	// we could have used an INVOKE_OBJECT, but decided against it, as we
		139	// assume that T_MATCH is relatively common.
		140	if (!match (tmp->slaying, ob, tmp, ob))
		141	return 1;
363	}	142	}
364	else	143	else
365	{	144	return 1; // unconditional block
366	/* In this case, the player must not have the object -	145
367	* if they do, they can't pass through.
368	*/
369	if (check_inv_recursive (ob, tmp) != NULL) /* player has object */
370	return 1;
371	else
372	continue;
373	}
374	} /* if check_inv */
375	else	146	} else {
376	{	147	// space does not block the ob, directly, but
377	/* Broke apart a big nasty if into several here to make	148	// anything alive that is not a door still
378	* this more readable. first check - if the space blocks	149	// blocks anything
379	* movement, can't move here.	150
380	* second - if a monster, can't move there, unles it is a	151	if (tmp->flag [FLAG_ALIVE]
381	* hidden dm	152	&& tmp->type != DOOR
382	*/	153	&& tmp->head_ () != ob) //TODO: maybe move these check up?
383	if (OB_MOVE_BLOCK (ob, tmp))
384	return 1;
385	if (QUERY_FLAG (tmp, FLAG_ALIVE) && tmp->head != ob && tmp != ob &&
386	tmp->type != DOOR && !(QUERY_FLAG (tmp, FLAG_WIZ) && tmp->contr->hidden))
387	return 1;	154	return 1;
388	}	155	}
389
390	}	156	}
		157
391	return 0;	158	return 0;
392	}	159	}
393		160
394
395	/*	161	/*
396	* 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
397	* This is meant for multi space objects - for single space objecs,	163	* spot. This is meant for multi space objects - for single space objecs,
398	* just calling get_map_blocked and checking that against movement type	164	* just calling get_map_blocked and checking that against movement type
399	* of object. This function goes through all the parts of the	165	* of object. This function goes through all the parts of the multipart
400	* multipart object and makes sure they can be inserted.	166	* object and makes sure they can be inserted.
401	*	167	*
402	* 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.
403	*	169	*
404	* This function has been used to deprecate arch_out_of_map -	170	* This function has been used to deprecate arch_out_of_map -
405	* this function also does that check, and since in most cases,	171	* this function also does that check, and since in most cases,
…		…
416	*	182	*
417	* Note this used to be arch_blocked, but with new movement	183	* Note this used to be arch_blocked, but with new movement
418	* 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
419	* against the move_block values.	185	* against the move_block values.
420	*/	186	*/
421		187	bool
422	int	188	object::blocked (maptile *m, int x, int y) const
423	ob_blocked (const object *ob, mapstruct *m, sint16 x, sint16 y)
424	{	189	{
425	archetype *tmp;	190	for (archetype *tmp = arch; tmp; tmp = (archetype *)tmp->more)
426	int flag;
427	mapstruct *m1;
428	sint16 sx, sy;
429
430	if (ob == NULL)
431	{
432	flag = get_map_flags (m, &m1, x, y, &sx, &sy);
433	if (flag & P_OUT_OF_MAP)
434	return P_OUT_OF_MAP;
435
436	/* don't have object, so don't know what types would block */
437	return (GET_MAP_MOVE_BLOCK (m1, sx, sy));
438	}	191	{
		192	mapxy pos (m, x + tmp->x, y + tmp->y);
439		193
440	for (tmp = ob->arch; tmp != NULL; tmp = tmp->more)	194	if (!pos.normalise ())
441	{	195	return 1;
442	flag = get_map_flags (m, &m1, x + tmp->clone.x, y + tmp->clone.y, &sx, &sy);
443		196
444	if (flag & P_OUT_OF_MAP)	197	mapspace &ms = *pos;
445	return P_OUT_OF_MAP;	198
446	if (flag & P_IS_ALIVE)	199	if (ms.flags () & P_IS_ALIVE)
447	return P_IS_ALIVE;	200	return 1;
448		201
449	/* find_first_free_spot() calls this function. However, often	202	/* However, often ob doesn't have any move type
450	* ob doesn't have any move type (when used to place exits)	203	* (signifying non-moving objects)
451	* 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.
452	*/	205	*/
453		206	if (!move_type && ms.move_block != MOVE_ALL)
454	if (ob->move_type == 0 && GET_MAP_MOVE_BLOCK (m1, sx, sy) != MOVE_ALL)
455	continue;	207	continue;
456		208
457	/* 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
458	* head of the object should correspond for the entire object.	210	* head of the object should correspond for the entire object.
459	*/	211	*/
460	if (OB_TYPE_MOVE_BLOCK (ob, GET_MAP_MOVE_BLOCK (m1, sx, sy)))	212	if (ms.blocks (move_type))
461	return AB_NO_PASS;	213	return 1;
462
463	}	214	}
		215
464	return 0;	216	return 0;
465	}	217	}
466		218
467	/* When the map is loaded, load_object does not actually insert objects	219	//-GPL
468	* into inventory, but just links them. What this does is go through
469	* and insert them properly.
470	* The object 'container' is the object that contains the inventory.
471	* This is needed so that we can update the containers weight.
472	*/
473		220
474	void	221	void
475	fix_container (object *container)	222	maptile::set_object_flag (int flag, int value)
476	{	223	{
477	object *tmp = container->inv, *next;	224	if (!spaces)
		225	return;
478		226
479	container->inv = NULL;	227	for (mapspace *ms = spaces + size (); ms-- > spaces; )
480	while (tmp != NULL)	228	for (object *tmp = ms->bot; tmp; tmp = tmp->above)
481	{	229	tmp->flag [flag] = value;
482	next = tmp->below;
483	if (tmp->inv)
484	fix_container (tmp);
485	(void) insert_ob_in_ob (tmp, container);
486	tmp = next;
487	}
488	/* sum_weight will go through and calculate what all the containers are
489	* carrying.
490	*/
491	sum_weight (container);
492	}	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
493		259
494	/* 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
495	* 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
496	* 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
497	* they are saved). We do have to look for the old maps that did save	263	* they are saved).
498	* the more sections and not re-add sections for them.
499	*/	264	*/
500		265	void
501	static void	266	maptile::link_multipart_objects ()
502	link_multipart_objects (mapstruct *m)
503	{	267	{
504	int x, y;	268	if (!spaces)
505	object *tmp, *op, *last, *above;	269	return;
506	archetype *at;
507		270
508	for (x = 0; x < MAP_WIDTH (m); x++)	271	for (mapspace *ms = spaces + size (); ms-- > spaces; )
509	for (y = 0; y < MAP_HEIGHT (m); y++)	272	{
510	for (tmp = get_map_ob (m, x, y); tmp != NULL; tmp = above)	273	object *op = ms->bot;
		274	while (op)
511	{	275	{
512	above = tmp->above;
513
514	/* already multipart - don't do anything more */	276	/* already multipart - don't do anything more */
515	if (tmp->head || tmp->more)	277	if (op->head_ () == op && !op->more && op->arch->more)
516	continue;
517
518	/* If there is nothing more to this object, this for loop
519	* won't do anything.
520	*/
521	for (at = tmp->arch->more, last = tmp; at != NULL; at = at->more, last = op)
522	{	278	{
523	op = arch_to_object (at);	279	op->remove ();
		280	op->expand_tail ();
524		281
525	/* update x,y coordinates */	282	// FIXME: INS_ON_TOP is just a workaround for the pentagram vs.
526	op->x += tmp->x;	283	// multi-tile monster bug, where INS_ABOVE_FLOOR_ONLY put the monsters
527	op->y += tmp->y;	284	// below the pentagrams... hopefully INS_ON_TOP doesn't break anything
528	op->head = tmp;	285	insert (op, op->x, op->y, 0, INS_NO_MERGE | INS_ON_TOP | INS_NO_WALK_ON);
529	op->map = m;	286
530	last->more = op;	287	op = ms->bot; // we are mutating the mapspace too much with INS_ON_TOP
531	op->name = tmp->name;	288	// so we have to reset the iteration through the mapspace
532	op->title = tmp->title;
533	/* we could link all the parts onto tmp, and then just
534	* call insert_ob_in_map once, but the effect is the same,
535	* as insert_ob_in_map will call itself with each part, and
536	* the coding is simpler to just to it here with each part.
537	*/	289	}
538	insert_ob_in_map (op, op->map, tmp, INS_NO_MERGE | INS_ABOVE_FLOOR_ONLY | INS_NO_WALK_ON);	290	else
539	} /* for at = tmp->arch->more */	291	op = op->above;
540	} /* for objects on this space */	292	}
		293	}
541	}	294	}
		295
		296	//-GPL
542		297
543	/*	298	/*
544	* 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
545	* file pointer.	300	* file pointer.
546	* mapflags is the same as we get with load_original_map
547	*/	301	*/
548	void	302	bool
549	load_objects (mapstruct *m, object_thawer & fp, int mapflags)	303	maptile::_load_objects (object_thawer &f)
550	{	304	{
551	int i, j;	305	for (;;)
552	int unique;
553	object *op, *prev = NULL, *last_more = NULL, *otmp;
554
555	op = get_object ();
556	op->map = m; /* To handle buttons correctly */
557
558	while ((i = load_object (fp, op, mapflags)))
559	{	306	{
560	/* if the archetype for the object is null, means that we	307	coroapi::cede_to_tick (); // cede once in a while
561	* got an invalid object. Don't do anything with it - the game	308
562	* or editor will not be able to do anything with it either.	309	switch (f.kw)
563	*/
564	if (op->arch == NULL)
565	{	310	{
566	LOG (llevDebug, "Discarding object without arch: %s\n", op->name ? (const char *) op->name : "(null)");	311	case KW_arch:
		312	if (object *op = object::read (f, this))
		313	{
		314	// TODO: why?
		315	if (op->inv)
		316	op->update_weight ();
		317
		318	if (IN_RANGE_EXC (op->x, 0, width) && IN_RANGE_EXC (op->y, 0, height))
		319	{
		320	// we insert manually because
		321	// a) its way faster
		322	// b) we remove manually, too, and there are good reasons for that
		323	// c) it's correct
		324	mapspace &ms = at (op->x, op->y);
		325
		326	op->flag [FLAG_REMOVED] = false;
		327
		328	op->above = 0;
		329	op->below = ms.top;
		330
		331	*(ms.top ? &ms.top->above : &ms.bot) = op;
		332
		333	ms.top = op;
		334	ms.flags_ = 0;
		335	}
		336	else
		337	{
		338	f.parse_warn (format ("object %s out of range", op->debug_desc ()));
		339	op->destroy ();
		340	}
		341	}
		342
567	continue;	343	continue;
		344
		345	case KW_EOF:
		346	return true;
		347
		348	default:
		349	if (!f.parse_error ("map file"))
		350	return false;
		351	break;
568	}	352	}
569		353
		354	f.next ();
		355	}
570		356
571	switch (i)	357	return true;
		358	}
		359
		360	void
		361	maptile::activate ()
		362	{
		363	if (spaces)
		364	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		365	for (object *op = ms->bot; op; op = op->above)
		366	op->activate_recursive ();
		367	}
		368
		369	void
		370	maptile::deactivate ()
		371	{
		372	if (spaces)
		373	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		374	for (object *op = ms->bot; op; op = op->above)
		375	op->deactivate_recursive ();
		376	}
		377
		378	bool
		379	maptile::_save_objects (object_freezer &f, int flags)
		380	{
		381	coroapi::cede_to_tick ();
		382
		383	if (flags & IO_HEADER)
		384	_save_header (f);
		385
		386	if (!spaces)
		387	return false;
		388
		389	for (int i = 0; i < size (); ++i)
		390	{
		391	bool unique = 0;
		392
		393	for (object *op = spaces [i].bot; op; op = op->above)
572	{	394	{
573	case LL_NORMAL:	395	unique |= op->flag [FLAG_UNIQUE] && op->flag [FLAG_IS_FLOOR];
574	/* if we are loading an overlay, put the floors on the bottom */	396
575	if ((QUERY_FLAG (op, FLAG_IS_FLOOR) || QUERY_FLAG (op, FLAG_OVERLAY_FLOOR)) && mapflags & MAP_OVERLAY)	397	if (expect_false (!op->can_map_save ()))
576	insert_ob_in_map (op, m, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ABOVE_FLOOR_ONLY | INS_MAP_LOAD);	398	continue;
		399
		400	if (expect_false (unique || op->flag [FLAG_UNIQUE]))
577	else	401	{
578	insert_ob_in_map (op, m, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ON_TOP | INS_MAP_LOAD);	402	if (flags & IO_UNIQUES)
579		403	op->write (f);
580	if (op->inv)	404	}
581	sum_weight (op);	405	else if (expect_true (flags & IO_OBJECTS))
582		406	op->write (f);
583	prev = op, last_more = op;
584	break;
585
586	case LL_MORE:
587	insert_ob_in_map (op, m, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ABOVE_FLOOR_ONLY);
588	op->head = prev, last_more->more = op, last_more = op;
589	break;
590	}	407	}
591
592	if (mapflags & MAP_STYLE)
593	remove_from_active_list (op);
594
595	op = get_object ();
596	op->map = m;
597	}
598
599	for (i = 0; i < m->width; i++)
600	{	408	}
601	for (j = 0; j < m->height; j++)
602	{
603	unique = 0;
604	/* check for unique items, or unique squares */
605	for (otmp = get_map_ob (m, i, j); otmp; otmp = otmp->above)
606	{
607	if (QUERY_FLAG (otmp, FLAG_UNIQUE) || QUERY_FLAG (otmp, FLAG_OBJ_SAVE_ON_OVL))
608	unique = 1;
609	if (!(mapflags & (MAP_OVERLAY | MAP_PLAYER_UNIQUE) || unique))
610	SET_FLAG (otmp, FLAG_OBJ_ORIGINAL);
611	}
612	}
613	}
614		409
615	free_object (op);	410	coroapi::cede_to_tick ();
616	link_multipart_objects (m);
617	}
618		411
619	/* This saves all the objects on the map in a non destructive fashion.	412	return true;
620	* Modified by MSW 2001-07-01 to do in a single pass - reduces code,	413	}
621	* and we only save the head of multi part objects - this is needed	414
622	* in order to do map tiling properly.	415	bool
		416	maptile::_save_objects (const char *path, int flags)
		417	{
		418	object_freezer freezer;
		419
		420	if (!_save_objects (freezer, flags))
		421	return false;
		422
		423	return freezer.save (path);
		424	}
		425
		426	void
		427	maptile::init ()
		428	{
		429	in_memory = MAP_SWAPPED;
		430
		431	/* The maps used to pick up default x and y values from the
		432	* map archetype. Mimic that behaviour.
623	*/	433	*/
624	void	434	width = 16;
625	save_objects (mapstruct *m, object_freezer & fp, object_freezer & fp2, int flag)	435	height = 16;
626	{	436	timeout = 300;
627	int i, j = 0, unique = 0;	437	max_items = MAX_ITEM_PER_ACTION;
628	object *op;	438	max_volume = 2000000; // 2m³
		439	reset_timeout = 0;
		440	enter_x = 0;
		441	enter_y = 0;
		442	}
629		443
630	/* first pass - save one-part objects */	444	maptile::maptile ()
631	for (i = 0; i < MAP_WIDTH (m); i++)	445	{
632	for (j = 0; j < MAP_HEIGHT (m); j++)	446	init ();
633	{	447	}
634	unique = 0;
635	for (op = get_map_ob (m, i, j); op; op = op->above)
636	{
637	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))
638	unique = 1;
639		448
640	if (op->type == PLAYER)	449	maptile::maptile (int w, int h)
641	{	450	{
642	LOG (llevDebug, "Player on map that is being saved\n");	451	init ();
643	continue;
644	}
645		452
646	if (op->head || op->owner)	453	width = w;
647	continue;	454	height = h;
648		455
649	if (unique || QUERY_FLAG (op, FLAG_UNIQUE))	456	alloc ();
650	save_object (fp2, op, 3);
651	else if (flag == 0 || (flag == 2 && (!QUERY_FLAG (op, FLAG_OBJ_ORIGINAL) && !QUERY_FLAG (op, FLAG_UNPAID))))
652	save_object (fp, op, 3);
653
654	} /* for this space */
655	} /* for this j */
656	}	457	}
657		458
658	/*	459	/*
659	* Allocates, initialises, and returns a pointer to a mapstruct.
660	* Modified to no longer take a path option which was not being
661	* used anyways. MSW 2001-07-01
662	*/
663
664	mapstruct *
665	get_linked_map (void)
666	{
667	mapstruct *map = new mapstruct;
668	mapstruct *mp;
669
670	for (mp = first_map; mp != NULL && mp->next != NULL; mp = mp->next);
671	if (mp == NULL)
672	first_map = map;
673	else
674	mp->next = map;
675
676	map->in_memory = MAP_SWAPPED;
677	/* The maps used to pick up default x and y values from the
678	* map archetype. Mimic that behaviour.
679	*/
680	MAP_WIDTH (map) = 16;
681	MAP_HEIGHT (map) = 16;
682	MAP_RESET_TIMEOUT (map) = 0;
683	MAP_TIMEOUT (map) = 300;
684	MAP_ENTER_X (map) = 0;
685	MAP_ENTER_Y (map) = 0;
686	/*set part to -1 indicating conversion to weather map not yet done */
687	MAP_WORLDPARTX (map) = -1;
688	MAP_WORLDPARTY (map) = -1;
689	return map;
690	}
691
692	/*
693	* Allocates the arrays contained in a mapstruct.	460	* Allocates the arrays contained in a maptile.
694	* This basically allocates the dynamic array of spaces for the	461	* This basically allocates the dynamic array of spaces for the
695	* map.	462	* map.
696	*/	463	*/
697
698	void	464	void
699	allocate_map (mapstruct *m)	465	maptile::alloc ()
700	{	466	{
701	m->in_memory = MAP_IN_MEMORY;
702	/* Log this condition and free the storage. We could I suppose
703	* realloc, but if the caller is presuming the data will be intact,
704	* that is their poor assumption.
705	*/
706	if (m->spaces)	467	if (spaces)
707	{
708	LOG (llevError, "allocate_map called with already allocated map (%s)\n", m->path);
709	free (m->spaces);
710	}
711
712	m->spaces = (MapSpace *) calloc (1, MAP_WIDTH (m) * MAP_HEIGHT (m) * sizeof (MapSpace));
713
714	if (m->spaces == NULL)
715	fatal (OUT_OF_MEMORY);
716	}
717
718	/* Create and returns a map of the specific size. Used
719	* in random map code and the editor.
720	*/
721	mapstruct *
722	get_empty_map (int sizex, int sizey)
723	{
724	mapstruct *m = get_linked_map ();
725
726	m->width = sizex;
727	m->height = sizey;
728	m->in_memory = MAP_SWAPPED;
729	allocate_map (m);
730	return m;	468	return;
		469
		470	spaces = salloc0<mapspace> (size ());
731	}	471	}
		472
		473	//+GPL
732		474
733	/* 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
734	* 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
735	* at a later date.	477	* at a later date.
736	* Called by parse_map_headers below.	478	* Called by parse_map_headers below.
737	*/	479	*/
738
739	static shopitems *	480	static shopitems *
740	parse_shop_string (const char *input_string)	481	parse_shop_string (const char *input_string)
741	{	482	{
742	char *shop_string, *p, *q, *next_semicolon, *next_colon;	483	char *shop_string, *p, *q, *next_semicolon, *next_colon;
743	shopitems *items = NULL;	484	shopitems *items = NULL;
744	int i = 0, number_of_entries = 0;	485	int i = 0, number_of_entries = 0;
745	const typedata *current_type;	486	const typedata *current_type;
746		487
747	shop_string = strdup_local (input_string);	488	shop_string = strdup (input_string);
748	p = shop_string;	489	p = shop_string;
749	/* 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 */
750	while (p)	491	while (p)
751	{	492	{
752	p = strchr (p, ';');	493	p = strchr (p, ';');
753	number_of_entries++;	494	number_of_entries++;
754	if (p)	495	if (p)
755	p++;	496	p++;
756	}	497	}
		498
757	p = shop_string;	499	p = shop_string;
758	strip_endline (p);	500	strip_endline (p);
759	items = new shopitems[number_of_entries + 1];	501	items = new shopitems[number_of_entries + 1];
760	for (i = 0; i < number_of_entries; i++)	502	for (i = 0; i < number_of_entries; i++)
761	{	503	{
762	if (!p)	504	if (!p)
763	{	505	{
764	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");
765	break;	507	break;
766	}	508	}
		509
767	next_semicolon = strchr (p, ';');	510	next_semicolon = strchr (p, ';');
768	next_colon = strchr (p, ':');	511	next_colon = strchr (p, ':');
769	/* if there is a stregth specified, figure out what it is, we'll need it soon. */	512	/* if there is a stregth specified, figure out what it is, we'll need it soon. */
770	if (next_colon && (!next_semicolon || next_colon < next_semicolon))	513	if (next_colon && (!next_semicolon || next_colon < next_semicolon))
771	items[i].strength = atoi (strchr (p, ':') + 1);	514	items[i].strength = atoi (strchr (p, ':') + 1);
…		…
798	* the next entry while we're at it, better print a warning	541	* the next entry while we're at it, better print a warning
799	*/	542	*/
800	LOG (llevError, "invalid type %s defined in shopitems in string %s\n", p, input_string);	543	LOG (llevError, "invalid type %s defined in shopitems in string %s\n", p, input_string);
801	}	544	}
802	}	545	}
		546
803	items[i].index = number_of_entries;	547	items[i].index = number_of_entries;
804	if (next_semicolon)	548	if (next_semicolon)
805	p = ++next_semicolon;	549	p = ++next_semicolon;
806	else	550	else
807	p = NULL;	551	p = NULL;
808	}	552	}
		553
809	free (shop_string);	554	free (shop_string);
810	return items;	555	return items;
811	}	556	}
812		557
813	/* 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
814	* the map (or something equivilent) into output_string. */	559	* the map (or something equivilent) into output_string. */
815	static void	560	static const char *
816	print_shop_string (mapstruct *m, char *output_string)	561	print_shop_string (maptile *m)
817	{	562	{
818	int i;	563	static dynbuf_text buf; buf.clear ();
819	char tmp[MAX_BUF];
820		564
821	strcpy (output_string, "");
822	for (i = 0; i < m->shopitems[0].index; i++)	565	for (int i = 0; i < m->shopitems[0].index; i++)
823	{	566	{
824	if (m->shopitems[i].typenum)	567	if (m->shopitems[i].typenum)
825	{	568	{
826	if (m->shopitems[i].strength)	569	if (m->shopitems[i].strength)
827	{
828	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);
829	}
830	else	571	else
831	sprintf (tmp, "%s;", m->shopitems[i].name);	572	buf.printf ("%s;", m->shopitems[i].name);
832	}	573	}
833	else	574	else
834	{	575	{
835	if (m->shopitems[i].strength)	576	if (m->shopitems[i].strength)
836	{
837	sprintf (tmp, "*:%d;", m->shopitems[i].strength);	577	buf.printf ("*:%d;", m->shopitems[i].strength);
838	}
839	else	578	else
840	sprintf (tmp, "*");	579	buf.printf ("*");
841	}	580	}
842	strcat (output_string, tmp);
843	}	581	}
		582
		583	return buf;
844	}	584	}
		585
		586	//-GPL
845		587
846	/* This loads the header information of the map. The header	588	/* This loads the header information of the map. The header
847	* contains things like difficulty, size, timeout, etc.	589	* contains things like difficulty, size, timeout, etc.
848	* 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
849	* addition of tiling, fields beyond that easily named in an	591	* addition of tiling, fields beyond that easily named in an
…		…
851	* 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
852	* sense.	594	* sense.
853	* 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
854	* 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.
855	* MSW 2001-07-01	597	* MSW 2001-07-01
856	* return 0 on success, 1 on failure.
857	*/	598	*/
858		599	bool
859	static int	600	maptile::_load_header (object_thawer &thawer)
860	load_map_header (object_thawer & fp, mapstruct *m)
861	{	601	{
862	char buf[HUGE_BUF], msgbuf[HUGE_BUF], maplorebuf[HUGE_BUF], *key = NULL, *value, *end;	602	for (;;)
863	int msgpos = 0;
864	int maplorepos = 0;
865
866	while (fgets (buf, HUGE_BUF - 1, fp) != NULL)
867	{	603	{
868	buf[HUGE_BUF - 1] = 0;	604	switch (thawer.kw)
869	key = buf;
870	while (isspace (*key))
871	key++;
872	if (*key == 0)
873	continue; /* empty line */
874	value = strchr (key, ' ');
875	if (!value)
876	{	605	{
877	end = strchr (key, '\n');	606	case KW_msg:
878	if (end != NULL)	607	thawer.get_ml (KW_endmsg, msg);
879	{	608	break;
880	*end = 0;	609
		610	case KW_lore: // CF+ extension
		611	thawer.get_ml (KW_endlore, maplore);
881	}	612	break;
		613
		614	case KW_maplore:
		615	thawer.get_ml (KW_endmaplore, maplore);
		616	break;
		617
		618	case KW_arch:
		619	if (strcmp (thawer.get_str (), "map"))
		620	LOG (llevError, "%s: loading map and got a non 'arch map' line (arch %s), skipping.\n", &path, thawer.get_str ());
		621	break;
		622
		623	case KW_oid:
		624	thawer.get (this, thawer.get_sint32 ());
		625	break;
		626
		627	case KW_file_format_version: break; // nop
		628
		629	case KW_name: thawer.get (name); break;
		630	case KW_attach: thawer.get (attach); break;
		631	case KW_reset_time: thawer.get (reset_time); break;
		632	case KW_shopgreed: thawer.get (shopgreed); break;
		633	case KW_shopmin: thawer.get (shopmin); break;
		634	case KW_shopmax: thawer.get (shopmax); break;
		635	case KW_shoprace: thawer.get (shoprace); break;
		636	case KW_outdoor: thawer.get (outdoor); break;
		637
		638	case KW_per_player: thawer.get (per_player); break;
		639	case KW_per_party: thawer.get (per_party); break;
		640	case KW_no_reset: thawer.get (no_reset); break;
		641	case KW_no_drop: thawer.get (no_drop); break;
		642
		643	case KW_region: default_region = region::find (thawer.get_str ()); break;
		644	case KW_shopitems: shopitems = parse_shop_string (thawer.get_str ()); break;
		645
		646	// old names new names
		647	case KW_hp: case KW_enter_x: thawer.get (enter_x); break;
		648	case KW_sp: case KW_enter_y: thawer.get (enter_y); break;
		649	case KW_x: case KW_width: thawer.get (width); break;
		650	case KW_y: case KW_height: thawer.get (height); break;
		651	case KW_weight: case KW_reset_timeout: thawer.get (reset_timeout); break;
		652	case KW_value: case KW_swap_time: thawer.get (timeout); break;
		653	case KW_level: case KW_difficulty: thawer.get (difficulty); difficulty = clamp (difficulty, 1, settings.max_level); break;
		654	case KW_invisible: case KW_darkness: thawer.get (darkness); break;
		655	case KW_stand_still: case KW_fixed_resettime: thawer.get (fixed_resettime); break;
		656
		657	case KW_tile_path_1: thawer.get (tile_path [0]); break;
		658	case KW_tile_path_2: thawer.get (tile_path [1]); break;
		659	case KW_tile_path_3: thawer.get (tile_path [2]); break;
		660	case KW_tile_path_4: thawer.get (tile_path [3]); break;
		661
		662	case KW_ERROR:
		663	set_key_text (thawer.kw_str, thawer.value);
		664	break;
		665
		666	case KW_end:
		667	thawer.next ();
		668	return true;
		669
		670	default:
		671	if (!thawer.parse_error ("map"))
		672	return false;
		673	break;
882	}	674	}
883	else
884	{
885	*value = 0;
886	value++;
887	end = strchr (value, '\n');
888	while (isspace (*value))
889	{
890	value++;
891	if (*value == '\0' || value == end)
892	{
893	/* Nothing but spaces. */
894	value = NULL;
895	break;
896	}
897	}
898	}
899		675
900	if (!end)	676	thawer.next ();
901	{
902	LOG (llevError, "Error loading map header - did not find a newline - perhaps file is truncated? Buf=%s\n", buf);
903	return 1;
904	}
905
906	/* key is the field name, value is what it should be set
907	* to. We've already done the work to null terminate key,
908	* and strip off any leading spaces for both of these.
909	* We have not touched the newline at the end of the line -
910	* these are needed for some values. the end pointer
911	* points to the first of the newlines.
912	* value could be NULL! It would be easy enough to just point
913	* this to "" to prevent cores, but that would let more errors slide
914	* through.
915	*
916	* First check for entries that do not use the value parameter, then
917	* validate that value is given and check for the remaining entries
918	* that use the parameter.
919	*/
920
921	if (!strcmp (key, "msg"))
922	{
923	while (fgets (buf, HUGE_BUF - 1, fp) != NULL)
924	{
925	if (!strcmp (buf, "endmsg\n"))
926	break;
927	else
928	{
929	/* slightly more efficient than strcat */
930	strcpy (msgbuf + msgpos, buf);
931	msgpos += strlen (buf);
932	}
933	}
934	/* There are lots of maps that have empty messages (eg, msg/endmsg
935	* with nothing between). There is no reason in those cases to
936	* keep the empty message. Also, msgbuf contains garbage data
937	* when msgpos is zero, so copying it results in crashes
938	*/
939	if (msgpos != 0)
940	m->msg = strdup_local (msgbuf);
941	}
942	else if (!strcmp (key, "maplore"))
943	{
944	while (fgets (buf, HUGE_BUF - 1, fp) != NULL)
945	{
946	if (!strcmp (buf, "endmaplore\n"))
947	break;
948	else
949	{
950	/* slightly more efficient than strcat */
951	strcpy (maplorebuf + maplorepos, buf);
952	maplorepos += strlen (buf);
953	}
954	}
955	if (maplorepos != 0)
956	m->maplore = strdup_local (maplorebuf);
957	}
958	else if (!strcmp (key, "end"))
959	{
960	break;
961	}
962	else if (value == NULL)
963	{
964	LOG (llevError, "Got '%s' line without parameter in map header\n", key);
965	}
966	else if (!strcmp (key, "arch"))
967	{
968	/* This is an oddity, but not something we care about much. */
969	if (strcmp (value, "map\n"))
970	LOG (llevError, "loading map and got a non 'arch map' line(%s %s)?\n", key, value);
971	}
972	else if (!strcmp (key, "name"))
973	{
974	*end = 0;
975	m->name = strdup_local (value);
976	}
977	/* first strcmp value on these are old names supported
978	* for compatibility reasons. The new values (second) are
979	* what really should be used.
980	*/
981	else if (!strcmp (key, "oid"))
982	{
983	fp.get (m, atoi (value));
984	}
985	else if (!strcmp (key, "attach"))
986	{
987	m->attach = value;
988	}
989	else if (!strcmp (key, "hp") || !strcmp (key, "enter_x"))
990	{
991	m->enter_x = atoi (value);
992	}
993	else if (!strcmp (key, "sp") || !strcmp (key, "enter_y"))
994	{
995	m->enter_y = atoi (value);
996	}
997	else if (!strcmp (key, "x") || !strcmp (key, "width"))
998	{
999	m->width = atoi (value);
1000	}
1001	else if (!strcmp (key, "y") || !strcmp (key, "height"))
1002	{
1003	m->height = atoi (value);
1004	}
1005	else if (!strcmp (key, "weight") || !strcmp (key, "reset_timeout"))
1006	{
1007	m->reset_timeout = atoi (value);
1008	}
1009	else if (!strcmp (key, "value") || !strcmp (key, "swap_time"))
1010	{
1011	m->timeout = atoi (value);
1012	}
1013	else if (!strcmp (key, "level") || !strcmp (key, "difficulty"))
1014	{
1015	m->difficulty = atoi (value);
1016	}
1017	else if (!strcmp (key, "invisible") || !strcmp (key, "darkness"))
1018	{
1019	m->darkness = atoi (value);
1020	}
1021	else if (!strcmp (key, "stand_still") || !strcmp (key, "fixed_resettime"))
1022	{
1023	m->fixed_resettime = atoi (value);
1024	}
1025	else if (!strcmp (key, "unique"))
1026	{
1027	m->unique = atoi (value);
1028	}
1029	else if (!strcmp (key, "template"))
1030	{
1031	m->templatemap = atoi (value);
1032	}
1033	else if (!strcmp (key, "region"))
1034	{
1035	m->region = get_region_by_name (value);
1036	}
1037	else if (!strcmp (key, "shopitems"))
1038	{
1039	*end = 0;
1040	m->shopitems = parse_shop_string (value);
1041	}
1042	else if (!strcmp (key, "shopgreed"))
1043	{
1044	m->shopgreed = atof (value);
1045	}
1046	else if (!strcmp (key, "shopmin"))
1047	{
1048	m->shopmin = atol (value);
1049	}
1050	else if (!strcmp (key, "shopmax"))
1051	{
1052	m->shopmax = atol (value);
1053	}
1054	else if (!strcmp (key, "shoprace"))
1055	{
1056	*end = 0;
1057	m->shoprace = strdup_local (value);
1058	}
1059	else if (!strcmp (key, "outdoor"))
1060	{
1061	m->outdoor = atoi (value);
1062	}
1063	else if (!strcmp (key, "temp"))
1064	{
1065	m->temp = atoi (value);
1066	}
1067	else if (!strcmp (key, "pressure"))
1068	{
1069	m->pressure = atoi (value);
1070	}
1071	else if (!strcmp (key, "humid"))
1072	{
1073	m->humid = atoi (value);
1074	}
1075	else if (!strcmp (key, "windspeed"))
1076	{
1077	m->windspeed = atoi (value);
1078	}
1079	else if (!strcmp (key, "winddir"))
1080	{
1081	m->winddir = atoi (value);
1082	}
1083	else if (!strcmp (key, "sky"))
1084	{
1085	m->sky = atoi (value);
1086	}
1087	else if (!strcmp (key, "nosmooth"))
1088	{
1089	m->nosmooth = atoi (value);
1090	}
1091	else if (!strncmp (key, "tile_path_", 10))
1092	{
1093	int tile = atoi (key + 10);
1094
1095	if (tile < 1 || tile > 4)
1096	{
1097	LOG (llevError, "load_map_header: tile location %d out of bounds (%s)\n", tile, m->path);
1098	}
1099	else
1100	{
1101	char *path;
1102
1103	*end = 0;
1104
1105	if (m->tile_path[tile - 1])
1106	{
1107	LOG (llevError, "load_map_header: tile location %d duplicated (%s)\n", tile, m->path);
1108	free (m->tile_path[tile - 1]);
1109	m->tile_path[tile - 1] = NULL;
1110	}
1111
1112	if (check_path (value, 1) != -1)
1113	{
1114	/* The unadorned path works. */
1115	path = value;
1116	}
1117	else
1118	{
1119	/* Try again; it could be a relative exit. */
1120
1121	path = path_combine_and_normalize (m->path, value);
1122
1123	if (check_path (path, 1) == -1)
1124	{
1125	LOG (llevError, "get_map_header: Bad tile path %s %s\n", m->path, value);
1126	path = NULL;
1127	}
1128	}
1129
1130	if (editor)
1131	{
1132	/* Use the value as in the file. */
1133	m->tile_path[tile - 1] = strdup_local (value);
1134	}
1135	else if (path != NULL)
1136	{
1137	/* Use the normalized value. */
1138	m->tile_path[tile - 1] = strdup_local (path);
1139	}
1140	} /* end if tile direction (in)valid */
1141	}
1142	else
1143	{
1144	LOG (llevError, "Got unknown value in map header: %s %s\n", key, value);
1145	}
1146	}
1147	if (!key || strcmp (key, "end"))
1148	{	677	}
1149	LOG (llevError, "Got premature eof on map header!\n");
1150	return 1;
1151	}
1152	return 0;
1153	}
1154		678
1155	/*	679	abort ();
1156	* Opens the file "filename" and reads information about the map
1157	* from the given file, and stores it in a newly allocated
1158	* mapstruct. A pointer to this structure is returned, or NULL on failure.
1159	* flags correspond to those in map.h. Main ones used are
1160	* MAP_PLAYER_UNIQUE, in which case we don't do any name changes, and
1161	* MAP_BLOCK, in which case we block on this load. This happens in all
1162	* cases, no matter if this flag is set or not.
1163	* MAP_STYLE: style map - don't add active objects, don't add to server
1164	* managed map list.
1165	*/
1166
1167	mapstruct *
1168	load_original_map (const char *filename, int flags)
1169	{
1170	mapstruct *m;
1171	char pathname[MAX_BUF];
1172
1173	if (flags & MAP_PLAYER_UNIQUE)
1174	strcpy (pathname, filename);
1175	else if (flags & MAP_OVERLAY)
1176	strcpy (pathname, create_overlay_pathname (filename));
1177	else
1178	strcpy (pathname, create_pathname (filename));
1179
1180	LOG (llevDebug, "load_original_map(%x): %s (%s)\n", flags, filename, pathname);
1181
1182	object_thawer thawer (pathname);
1183
1184	if (!thawer)
1185	return 0;
1186
1187	m = get_linked_map ();
1188
1189	strcpy (m->path, filename);
1190	if (load_map_header (thawer, m))
1191	{
1192	LOG (llevError, "Error loading map header for %s, flags=%d\n", filename, flags);
1193	delete_map (m);
1194	return NULL;
1195	}
1196
1197	allocate_map (m);
1198
1199	m->in_memory = MAP_LOADING;
1200	load_objects (m, thawer, flags & (MAP_BLOCK | MAP_STYLE));
1201
1202	m->in_memory = MAP_IN_MEMORY;
1203	if (!MAP_DIFFICULTY (m))
1204	MAP_DIFFICULTY (m) = calculate_difficulty (m);
1205	set_map_reset_time (m);
1206	m->instantiate ();
1207	return (m);
1208	}	680	}
1209		681
1210	/*	682	//+GPL
1211	* Loads a map, which has been loaded earlier, from file.
1212	* Return the map object we load into (this can change from the passed
1213	* option if we can't find the original map)
1214	*/
1215
1216	static mapstruct *
1217	load_temporary_map (mapstruct *m)
1218	{
1219	char buf[MAX_BUF];
1220
1221	if (!m->tmpname)
1222	{
1223	LOG (llevError, "No temporary filename for map %s\n", m->path);
1224	strcpy (buf, m->path);
1225	delete_map (m);
1226	m = load_original_map (buf, 0);
1227	if (m == NULL)
1228	return NULL;
1229	fix_auto_apply (m); /* Chests which open as default */
1230	return m;
1231	}
1232
1233	object_thawer thawer (m->tmpname);
1234
1235	if (!thawer)
1236	{
1237	strcpy (buf, m->path);
1238	delete_map (m);
1239	m = load_original_map (buf, 0);
1240	if (!m)
1241	return NULL;
1242	fix_auto_apply (m); /* Chests which open as default */
1243	return m;
1244	}
1245
1246	if (load_map_header (thawer, m))
1247	{
1248	LOG (llevError, "Error loading map header for %s (%s)\n", m->path, m->tmpname);
1249	delete_map (m);
1250	m = load_original_map (m->path, 0);
1251	return NULL;
1252	}
1253	allocate_map (m);
1254
1255	m->in_memory = MAP_LOADING;
1256	load_objects (m, thawer, 0);
1257
1258	m->in_memory = MAP_IN_MEMORY;
1259	INVOKE_MAP (SWAPIN, m);
1260	return m;
1261	}
1262
1263	/*
1264	* Loads a map, which has been loaded earlier, from file.
1265	* Return the map object we load into (this can change from the passed
1266	* option if we can't find the original map)
1267	*/
1268
1269	mapstruct *
1270	load_overlay_map (const char *filename, mapstruct *m)
1271	{
1272	char pathname[MAX_BUF];
1273
1274	strcpy (pathname, create_overlay_pathname (filename));
1275
1276	object_thawer thawer (pathname);
1277
1278	if (!thawer)
1279	return m;
1280
1281	if (load_map_header (thawer, m))
1282	{
1283	LOG (llevError, "Error loading map header for overlay %s (%s)\n", m->path, pathname);
1284	delete_map (m);
1285	m = load_original_map (m->path, 0);
1286	return NULL;
1287	}
1288	/*allocate_map(m); */
1289
1290	m->in_memory = MAP_LOADING;
1291	load_objects (m, thawer, MAP_OVERLAY);
1292
1293	m->in_memory = MAP_IN_MEMORY;
1294	return m;
1295	}
1296		683
1297	/******************************************************************************	684	/******************************************************************************
1298	* This is the start of unique map handling code	685	* This is the start of unique map handling code
1299	*****************************************************************************/	686	*****************************************************************************/
1300		687
1301	/* 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. */
1302	static void	689	void
1303	delete_unique_items (mapstruct *m)	690	maptile::clear_unique_items ()
1304	{	691	{
1305	int i, j, unique;	692	for (int i = 0; i < size (); ++i)
1306	object *op, *next;
1307
1308	for (i = 0; i < MAP_WIDTH (m); i++)
1309	for (j = 0; j < MAP_HEIGHT (m); j++)
1310	{	693	{
1311	unique = 0;	694	int unique = 0;
1312	for (op = get_map_ob (m, i, j); op; op = next)	695	for (object *op = spaces [i].bot; op; )
		696	{
		697	object *above = op->above;
		698
		699	if (op->flag [FLAG_IS_FLOOR] && op->flag [FLAG_UNIQUE])
		700	unique = 1;
		701
		702	if (op->head_ () == op && (op->flag [FLAG_UNIQUE] || unique))
		703	op->destroy ();
		704
		705	op = above;
		706	}
		707	}
		708	}
		709
		710	//-GPL
		711
		712	bool
		713	maptile::_save_header (object_freezer &freezer)
		714	{
		715	#define MAP_OUT(k) freezer.put (KW(k), k)
		716	#define MAP_OUT2(k,v) freezer.put (KW(k), v)
		717
		718	MAP_OUT2 (arch, CS(map));
		719
		720	if (name) MAP_OUT (name);
		721	MAP_OUT (swap_time);
		722	MAP_OUT (reset_time);
		723	MAP_OUT (reset_timeout);
		724	MAP_OUT (fixed_resettime);
		725	MAP_OUT (no_reset);
		726	MAP_OUT (no_drop);
		727	MAP_OUT (difficulty);
		728	if (default_region) MAP_OUT2 (region, default_region->name);
		729
		730	if (shopitems) MAP_OUT2 (shopitems, print_shop_string (this));
		731	MAP_OUT (shopgreed);
		732	MAP_OUT (shopmin);
		733	MAP_OUT (shopmax);
		734	if (shoprace) MAP_OUT (shoprace);
		735
		736	MAP_OUT (width);
		737	MAP_OUT (height);
		738	MAP_OUT (enter_x);
		739	MAP_OUT (enter_y);
		740	MAP_OUT (darkness);
		741	MAP_OUT (outdoor);
		742
		743	if (msg) freezer.put (KW(msg) , KW(endmsg) , msg);
		744	if (maplore) freezer.put (KW(maplore), KW(endmaplore), maplore);
		745
		746	MAP_OUT (per_player);
		747	MAP_OUT (per_party);
		748
		749	if (tile_path [0]) MAP_OUT2 (tile_path_1, tile_path [0]);
		750	if (tile_path [1]) MAP_OUT2 (tile_path_2, tile_path [1]);
		751	if (tile_path [2]) MAP_OUT2 (tile_path_3, tile_path [2]);
		752	if (tile_path [3]) MAP_OUT2 (tile_path_4, tile_path [3]);
		753
		754	freezer.put (this);
		755	freezer.put (KW(end));
		756
		757	return true;
		758	}
		759
		760	bool
		761	maptile::_save_header (const char *path)
		762	{
		763	object_freezer freezer;
		764
		765	if (!_save_header (freezer))
		766	return false;
		767
		768	return freezer.save (path);
		769	}
		770
		771	//+GPL
		772
		773	/*
		774	* Remove and free all objects in the given map.
		775	*/
		776	void
		777	maptile::clear ()
		778	{
		779	if (spaces)
		780	{
		781	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		782	while (object *op = ms->bot)
1313	{	783	{
		784	// manually remove, as to not trigger anything
1314	next = op->above;	785	if (ms->bot = op->above)
1315	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))	786	ms->bot->below = 0;
1316	unique = 1;	787
1317	if (op->head == NULL && (QUERY_FLAG (op, FLAG_UNIQUE) || unique))	788	op->flag [FLAG_REMOVED] = true;
		789
		790	object *head = op->head_ ();
		791	if (op == head)
		792	op->destroy ();
		793	else if (head->map != op->map)
1318	{	794	{
1319	clean_object (op);	795	LOG (llevDebug, "bad luck for object crossing map borders: %s", head->debug_desc ());
1320	if (QUERY_FLAG (op, FLAG_IS_LINKED))	796	head->destroy ();
1321	remove_button_link (op);
1322	remove_ob (op);
1323	free_object (op);
1324	}	797	}
1325	}	798	}
		799
		800	sfree0 (spaces, size ());
1326	}	801	}
1327	}
1328		802
1329
1330	/*
1331	* Loads unique objects from file(s) into the map which is in memory
1332	* m is the map to load unique items into.
1333	*/
1334	static void
1335	load_unique_objects (mapstruct *m)
1336	{
1337	int count;
1338	char firstname[MAX_BUF];
1339
1340	for (count = 0; count < 10; count++)
1341	{
1342	sprintf (firstname, "%s.v%02d", create_items_path (m->path), count);
1343	if (!access (firstname, R_OK))
1344	break;
1345	}
1346	/* If we get here, we did not find any map */
1347	if (count == 10)
1348	return;
1349
1350	object_thawer thawer (firstname);
1351
1352	if (!thawer)
1353	return;
1354
1355	m->in_memory = MAP_LOADING;
1356	if (m->tmpname == NULL) /* if we have loaded unique items from */
1357	delete_unique_items (m); /* original map before, don't duplicate them */
1358	load_objects (m, thawer, 0);
1359
1360	m->in_memory = MAP_IN_MEMORY;
1361	}
1362
1363
1364	/*
1365	* Saves a map to file. If flag is set, it is saved into the same
1366	* file it was (originally) loaded from. Otherwise a temporary
1367	* filename will be genarated, and the file will be stored there.
1368	* The temporary filename will be stored in the mapstructure.
1369	* If the map is unique, we also save to the filename in the map
1370	* (this should have been updated when first loaded)
1371	*/
1372
1373	int
1374	new_save_map (mapstruct *m, int flag)
1375	{
1376	char filename[MAX_BUF], buf[MAX_BUF], shop[MAX_BUF];
1377	int i;
1378
1379	if (flag && !*m->path)
1380	{
1381	LOG (llevError, "Tried to save map without path.\n");
1382	return -1;
1383	}
1384
1385	if (flag || (m->unique) || (m->templatemap))
1386	{
1387	if (!m->unique && !m->templatemap)
1388	{ /* flag is set */
1389	if (flag == 2)
1390	strcpy (filename, create_overlay_pathname (m->path));
1391	else
1392	strcpy (filename, create_pathname (m->path));
1393	}
1394	else
1395	strcpy (filename, m->path);
1396
1397	make_path_to_file (filename);
1398	}
1399	else
1400	{
1401	if (!m->tmpname)
1402	m->tmpname = tempnam_local (settings.tmpdir, NULL);
1403
1404	strcpy (filename, m->tmpname);
1405	}
1406
1407	LOG (llevDebug, "Saving map %s to %s\n", m->path, filename);
1408	m->in_memory = MAP_SAVING;
1409
1410	object_freezer freezer;
1411
1412	/* legacy */
1413	fprintf (freezer, "arch map\n");
1414	if (m->name)
1415	fprintf (freezer, "name %s\n", m->name);
1416	if (!flag)
1417	fprintf (freezer, "swap_time %d\n", m->swap_time);
1418	if (m->reset_timeout)
1419	fprintf (freezer, "reset_timeout %d\n", m->reset_timeout);
1420	if (m->fixed_resettime)
1421	fprintf (freezer, "fixed_resettime %d\n", m->fixed_resettime);
1422	/* we unfortunately have no idea if this is a value the creator set
1423	* or a difficulty value we generated when the map was first loaded
1424	*/
1425	if (m->difficulty)
1426	fprintf (freezer, "difficulty %d\n", m->difficulty);
1427	if (m->region)
1428	fprintf (freezer, "region %s\n", m->region->name);
1429	if (m->shopitems)
1430	{
1431	print_shop_string (m, shop);
1432	fprintf (freezer, "shopitems %s\n", shop);
1433	}
1434	if (m->shopgreed)
1435	fprintf (freezer, "shopgreed %f\n", m->shopgreed);
1436	#ifndef WIN32
1437	if (m->shopmin)
1438	fprintf (freezer, "shopmin %llu\n", m->shopmin);
1439	if (m->shopmax)
1440	fprintf (freezer, "shopmax %llu\n", m->shopmax);
1441	#else
1442	if (m->shopmin)
1443	fprintf (freezer, "shopmin %I64u\n", m->shopmin);
1444	if (m->shopmax)
1445	fprintf (freezer, "shopmax %I64u\n", m->shopmax);
1446	#endif
1447	if (m->shoprace)
1448	fprintf (freezer, "shoprace %s\n", m->shoprace);
1449	if (m->darkness)
1450	fprintf (freezer, "darkness %d\n", m->darkness);
1451	if (m->width)
1452	fprintf (freezer, "width %d\n", m->width);
1453	if (m->height)
1454	fprintf (freezer, "height %d\n", m->height);
1455	if (m->enter_x)
1456	fprintf (freezer, "enter_x %d\n", m->enter_x);
1457	if (m->enter_y)
1458	fprintf (freezer, "enter_y %d\n", m->enter_y);
1459	if (m->msg)
1460	fprintf (freezer, "msg\n%sendmsg\n", m->msg);
1461	if (m->maplore)
1462	fprintf (freezer, "maplore\n%sendmaplore\n", m->maplore);
1463	if (m->unique)
1464	fprintf (freezer, "unique %d\n", m->unique);
1465	if (m->templatemap)
1466	fprintf (freezer, "template %d\n", m->templatemap);
1467	if (m->outdoor)
1468	fprintf (freezer, "outdoor %d\n", m->outdoor);
1469	if (m->temp)
1470	fprintf (freezer, "temp %d\n", m->temp);
1471	if (m->pressure)
1472	fprintf (freezer, "pressure %d\n", m->pressure);
1473	if (m->humid)
1474	fprintf (freezer, "humid %d\n", m->humid);
1475	if (m->windspeed)
1476	fprintf (freezer, "windspeed %d\n", m->windspeed);
1477	if (m->winddir)
1478	fprintf (freezer, "winddir %d\n", m->winddir);
1479	if (m->sky)
1480	fprintf (freezer, "sky %d\n", m->sky);
1481	if (m->nosmooth)
1482	fprintf (freezer, "nosmooth %d\n", m->nosmooth);
1483
1484	/* Save any tiling information, except on overlays */
1485	if (flag != 2)
1486	for (i = 0; i < 4; i++)
1487	if (m->tile_path[i])
1488	fprintf (freezer, "tile_path_%d %s\n", i + 1, m->tile_path[i]);
1489
1490	freezer.put (m);
1491	fprintf (freezer, "end\n");
1492
1493	/* In the game save unique items in the different file, but
1494	* in the editor save them to the normal map file.
1495	* If unique map, save files in the proper destination (set by
1496	* player)
1497	*/
1498	if ((flag == 0 || flag == 2) && !m->unique && !m->templatemap)
1499	{
1500	object_freezer unique;
1501
1502	if (flag == 2)
1503	save_objects (m, freezer, unique, 2);
1504	else
1505	save_objects (m, freezer, unique, 0);
1506
1507	sprintf (buf, "%s.v00", create_items_path (m->path));
1508
1509	unique.save (buf);
1510	}
1511	else
1512	{ /* save same file when not playing, like in editor */
1513	save_objects (m, freezer, freezer, 0);
1514	}
1515
1516	freezer.save (filename);
1517
1518	return 0;
1519	}
1520
1521
1522	/*
1523	* Remove and free all objects in the inventory of the given object.
1524	* object.c ?
1525	*/
1526
1527	void
1528	clean_object (object *op)
1529	{
1530	object *tmp, *next;
1531
1532	for (tmp = op->inv; tmp; tmp = next)
1533	{
1534	next = tmp->below;
1535	clean_object (tmp);
1536	if (QUERY_FLAG (tmp, FLAG_IS_LINKED))
1537	remove_button_link (tmp);
1538	remove_ob (tmp);
1539	free_object (tmp);
1540	}
1541	}
1542
1543	/*
1544	* Remove and free all objects in the given map.
1545	*/
1546
1547	void
1548	free_all_objects (mapstruct *m)
1549	{
1550	int i, j;
1551	object *op;
1552
1553	for (i = 0; i < MAP_WIDTH (m); i++)
1554	for (j = 0; j < MAP_HEIGHT (m); j++)
1555	{
1556	object *previous_obj = NULL;
1557
1558	while ((op = GET_MAP_OB (m, i, j)) != NULL)
1559	{
1560	if (op == previous_obj)
1561	{
1562	LOG (llevDebug, "free_all_objects: Link error, bailing out.\n");
1563	break;
1564	}
1565	previous_obj = op;
1566	if (op->head != NULL)
1567	op = op->head;
1568
1569	/* If the map isn't in memory, free_object will remove and
1570	* free objects in op's inventory. So let it do the job.
1571	*/
1572	if (m->in_memory == MAP_IN_MEMORY)
1573	clean_object (op);
1574	remove_ob (op);
1575	free_object (op);
1576	}
1577	}
1578	}
1579
1580	/*
1581	* Frees everything allocated by the given mapstructure.
1582	* don't free tmpname - our caller is left to do that
1583	*/
1584
1585	void
1586	free_map (mapstruct *m, int flag)
1587	{
1588	int i;
1589
1590	if (!m->in_memory)
1591	{
1592	LOG (llevError, "Trying to free freed map.\n");
1593	return;
1594	}
1595	if (flag && m->spaces)
1596	free_all_objects (m);
1597	if (m->name)
1598	FREE_AND_CLEAR (m->name);
1599	if (m->spaces)
1600	FREE_AND_CLEAR (m->spaces);
1601	if (m->msg)
1602	FREE_AND_CLEAR (m->msg);
1603	if (m->maplore)
1604	FREE_AND_CLEAR (m->maplore);
1605	if (m->shopitems)
1606	delete[]m->shopitems;
1607	m->shopitems = 0;
1608	if (m->shoprace)
1609	FREE_AND_CLEAR (m->shoprace);
1610	if (m->buttons)	803	if (buttons)
1611	free_objectlinkpt (m->buttons);	804	free_objectlinkpt (buttons), buttons = 0;
1612	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
1613	for (i = 0; i < 4; i++)	819	for (int i = 0; i < 4; i++)
1614	{	820	tile_path [i] = 0;
1615	if (m->tile_path[i])
1616	FREE_AND_CLEAR (m->tile_path[i]);
1617	m->tile_map[i] = NULL;
1618	}
1619	m->in_memory = MAP_SWAPPED;
1620	}	821	}
1621		822
1622	/*	823	maptile::~maptile ()
1623	* function: vanish mapstruct
1624	* m : pointer to mapstruct, if NULL no action
1625	* this deletes all the data on the map (freeing pointers)
1626	* and then removes this map from the global linked list of maps.
1627	*/
1628
1629	void
1630	delete_map (mapstruct *m)
1631	{	824	{
1632	mapstruct *tmp, *last;	825	assert (destroyed ());
1633	int i;	826	}
1634		827
1635	if (!m)	828	void
1636	return;	829	maptile::clear_links_to (maptile *m)
1637		830	{
1638	m->clear ();
1639
1640	if (m->in_memory == MAP_IN_MEMORY)
1641	{
1642	/* change to MAP_SAVING, even though we are not,
1643	* so that remove_ob doesn't do as much work.
1644	*/
1645	m->in_memory = MAP_SAVING;
1646	free_map (m, 1);
1647	}
1648	/* move this out of free_map, since tmpname can still be needed if
1649	* the map is swapped out.
1650	*/
1651	if (m->tmpname)
1652	{
1653	free (m->tmpname);
1654	m->tmpname = NULL;
1655	}
1656	last = NULL;
1657	/* 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
1658	* are pointing at this one for tiling information. Since	832	* are pointing at this one for tiling information. Since
1659	* 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
1660	* maps this map tiles with and clears those.	834	* maps this map tiles with and clears those.
1661	*/	835	*/
1662	for (tmp = first_map; tmp != NULL; tmp = tmp->next)
1663	{
1664	if (tmp->next == m)
1665	last = tmp;
1666
1667	/* This should hopefully get unrolled on a decent compiler */
1668	for (i = 0; i < 4; i++)	836	for (int i = 0; i < 4; i++)
1669	if (tmp->tile_map[i] == m)	837	if (tile_map[i] == m)
1670	tmp->tile_map[i] = NULL;	838	tile_map[i] = 0;
1671	}	839	}
1672		840
1673	/* If last is null, then this should be the first map in the list */	841	void
		842	maptile::do_destroy ()
		843	{
		844	attachable::do_destroy ();
		845
		846	clear ();
		847	}
		848
		849	/* decay and destroy perishable items in a map */
		850	// TODO: should be done regularly, not on map load?
		851	void
		852	maptile::do_decay_objects ()
		853	{
1674	if (!last)	854	if (!spaces)
		855	return;
		856
		857	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		858	for (object *above, *op = ms->bot; op; op = above)
1675	{	859	{
1676	if (m == first_map)	860	above = op->above;
1677	first_map = m->next;	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	}
1678	else	893	else
1679	/* m->path is a static char, so should hopefully still have
1680	* some useful data in it.
1681	*/
1682	LOG (llevError, "delete_map: Unable to find map %s in list\n", m->path);
1683	}
1684	else
1685	last->next = m->next;
1686
1687	delete m;
1688	}
1689
1690
1691
1692	/*
1693	* Makes sure the given map is loaded and swapped in.
1694	* name is path name of the map.
1695	* flags meaning:
1696	* 0x1 (MAP_FLUSH): flush the map - always load from the map directory,
1697	* and don't do unique items or the like.
1698	* 0x2 (MAP_PLAYER_UNIQUE) - this is a unique map for each player.
1699	* dont do any more name translation on it.
1700	*
1701	* Returns a pointer to the given map.
1702	*/
1703
1704	mapstruct *
1705	ready_map_name (const char *name, int flags)
1706	{
1707	mapstruct *m;
1708
1709	if (!name)
1710	return (NULL);
1711
1712	/* Have we been at this level before? */
1713	m = has_been_loaded (name);
1714
1715	/* Map is good to go, so just return it */
1716	if (m && (m->in_memory == MAP_LOADING || m->in_memory == MAP_IN_MEMORY))
1717	{
1718	return m;
1719	}
1720
1721	/* unique maps always get loaded from their original location, and never
1722	* a temp location. Likewise, if map_flush is set, or we have never loaded
1723	* this map, load it now. I removed the reset checking from here -
1724	* it seems the probability of a player trying to enter a map that should
1725	* reset but hasn't yet is quite low, and removing that makes this function
1726	* a bit cleaner (and players probably shouldn't rely on exact timing for
1727	* resets in any case - if they really care, they should use the 'maps command.
1728	*/
1729	if ((flags & (MAP_FLUSH | MAP_PLAYER_UNIQUE)) || !m)
1730	{
1731
1732	/* first visit or time to reset */
1733	if (m)
1734	{	894	{
1735	clean_tmp_map (m); /* Doesn't make much difference */	895	int mat = op->materials;
1736	delete_map (m);	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;
1737	}	910	}
1738		911
1739	/* create and load a map */	912	/* adjust overall chance below */
1740	if (flags & MAP_PLAYER_UNIQUE)	913	if (destroy && rndm (0, 1))
1741	LOG (llevDebug, "Trying to load map %s.\n", name);	914	op->destroy ();
1742	else
1743	LOG (llevDebug, "Trying to load map %s.\n", create_pathname (name));
1744
1745	//eval_pv ("$x = Event::time", 1);//D
1746	if (!(m = load_original_map (name, (flags & MAP_PLAYER_UNIQUE))))
1747	return (NULL);
1748	//eval_pv ("warn \"LOAD \", Event::time - $x", 1);//D
1749
1750	fix_auto_apply (m); /* Chests which open as default */
1751
1752	/* If a player unique map, no extra unique object file to load.
1753	* if from the editor, likewise.
1754	*/
1755	if (!(flags & (MAP_FLUSH | MAP_PLAYER_UNIQUE)))
1756	load_unique_objects (m);
1757
1758	if (!(flags & (MAP_FLUSH | MAP_PLAYER_UNIQUE | MAP_OVERLAY)))
1759	{
1760	m = load_overlay_map (name, m);
1761	if (m == NULL)
1762	return NULL;
1763	}	915	}
1764
1765	if (flags & MAP_PLAYER_UNIQUE)
1766	INVOKE_MAP (SWAPIN, m);
1767
1768	}
1769	else
1770	{
1771	/* If in this loop, we found a temporary map, so load it up. */
1772
1773	m = load_temporary_map (m);
1774	if (m == NULL)
1775	return NULL;
1776	load_unique_objects (m);
1777
1778	clean_tmp_map (m);
1779	m->in_memory = MAP_IN_MEMORY;
1780	/* tempnam() on sun systems (probably others) uses malloc
1781	* to allocated space for the string. Free it here.
1782	* In some cases, load_temporary_map above won't find the
1783	* temporary map, and so has reloaded a new map. If that
1784	* is the case, tmpname is now null
1785	*/
1786	if (m->tmpname)
1787	free (m->tmpname);
1788	m->tmpname = NULL;
1789	/* It's going to be saved anew anyway */
1790	}
1791
1792	/* Below here is stuff common to both first time loaded maps and
1793	* temp maps.
1794	*/
1795
1796	decay_objects (m); /* start the decay */
1797	/* In case other objects press some buttons down */
1798	update_buttons (m);
1799	if (m->outdoor)
1800	set_darkness_map (m);
1801	/* run the weather over this map */
1802	weather_effect (name);
1803	return m;
1804	}	916	}
1805
1806		917
1807	/*	918	/*
1808	* 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.
1809	* difficulty does not have a lot to do with character level,	920	* difficulty does not have a lot to do with character level,
1810	* 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.
1811	*	922	*
1812	* 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
1813	* 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
1814	* have a difficulty set than using this function - human calculation	925	* have a difficulty set rather than using this function - human calculation
1815	* is much better than this functions guesswork.	926	* is much better than this function's guesswork.
1816	*/	927	*/
1817
1818	int	928	int
1819	calculate_difficulty (mapstruct *m)	929	maptile::estimate_difficulty () const
1820	{	930	{
1821	object *op;
1822	archetype *at;
1823	int x, y, i;
1824	long monster_cnt = 0;	931	long monster_cnt = 0;
1825	double avgexp = 0;	932	double avgexp = 0;
1826	sint64 total_exp = 0;	933	sint64 total_exp = 0;
1827		934
1828	if (MAP_DIFFICULTY (m))	935	for (mapspace *ms = spaces + size (); ms-- > spaces; )
1829	{	936	for (object *op = ms->bot; op; op = op->above)
1830	LOG (llevDebug, "Using stored map difficulty: %d\n", MAP_DIFFICULTY (m));
1831	return MAP_DIFFICULTY (m);
1832	}
1833
1834	for (x = 0; x < MAP_WIDTH (m); x++)
1835	for (y = 0; y < MAP_HEIGHT (m); y++)
1836	for (op = get_map_ob (m, x, y); op != NULL; op = op->above)
1837	{	937	{
1838	if (QUERY_FLAG (op, FLAG_MONSTER))	938	if (op->flag [FLAG_MONSTER])
1839	{	939	{
1840	total_exp += op->stats.exp;	940	total_exp += op->stats.exp;
1841	monster_cnt++;	941	monster_cnt++;
1842	}	942	}
1843		943
1844	if (QUERY_FLAG (op, FLAG_GENERATOR))	944	if (op->flag [FLAG_GENERATOR])
1845	{	945	{
1846	total_exp += op->stats.exp;	946	total_exp += op->stats.exp;
1847	at = type_to_archetype (GENERATE_TYPE (op));
1848		947
1849	if (at != NULL)	948	if (archetype *at = op->other_arch)
		949	{
1850	total_exp += at->clone.stats.exp * 8;	950	total_exp += at->stats.exp * 8;
1851
1852	monster_cnt++;	951	monster_cnt++;
1853	}	952	}
		953
		954	for (object *inv = op->inv; inv; inv = inv->below)
		955	{
		956	total_exp += op->stats.exp * 8;
		957	monster_cnt++;
		958	}
1854	}	959	}
		960	}
1855		961
1856	avgexp = (double) total_exp / monster_cnt;	962	avgexp = (double) total_exp / monster_cnt;
1857		963
1858	for (i = 1; i <= settings.max_level; i++)	964	for (int i = 1; i <= settings.max_level; i++)
1859	{
1860	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))
1861	{
1862	/* LOG(llevDebug, "Calculated difficulty for map: %s: %d\n", m->name, i); */
1863	return i;	966	return i;
1864	}
1865	}
1866		967
1867	return 1;	968	return 1;
1868	}
1869
1870	void
1871	clean_tmp_map (mapstruct *m)
1872	{
1873	if (m->tmpname == NULL)
1874	return;
1875	INVOKE_MAP (CLEAN, m);
1876	(void) unlink (m->tmpname);
1877	}
1878
1879	void
1880	free_all_maps (void)
1881	{
1882	int real_maps = 0;
1883
1884	while (first_map)
1885	{
1886	/* I think some of the callers above before it gets here set this to be
1887	* saving, but we still want to free this data
1888	*/
1889	if (first_map->in_memory == MAP_SAVING)
1890	first_map->in_memory = MAP_IN_MEMORY;
1891	delete_map (first_map);
1892	real_maps++;
1893	}
1894	LOG (llevDebug, "free_all_maps: Freed %d maps\n", real_maps);
1895	}	969	}
1896		970
1897	/* change_map_light() - used to change map light level (darkness)	971	/* change_map_light() - used to change map light level (darkness)
1898	* up or down. Returns true if successful. It should now be	972	* up or down. Returns true if successful. It should now be
1899	* possible to change a value by more than 1.	973	* possible to change a value by more than 1.
1900	* 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
1901	* to maps than los.	975	* to maps than los.
1902	* postive values make it darker, negative make it brighter	976	* postive values make it darker, negative make it brighter
1903	*/	977	*/
1904
1905	int	978	int
1906	change_map_light (mapstruct *m, int change)	979	maptile::change_map_light (int change)
1907	{	980	{
1908	int new_level = m->darkness + change;
1909
1910	/* Nothing to do */	981	/* Nothing to do */
1911	if (!change || (new_level <= 0 && m->darkness == 0) || (new_level >= MAX_DARKNESS && m->darkness >= MAX_DARKNESS))	982	if (!change)
1912	{
1913	return 0;	983	return 0;
1914	}
1915		984
1916	/* inform all players on the map */	985	/* inform all players on the map */
1917	if (change > 0)	986	if (change > 0)
1918	new_info_map (NDI_BLACK | NDI_UNIQUE, m, "It becomes darker.");	987	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes darker.");
1919	else	988	else
1920	new_info_map (NDI_BLACK | NDI_UNIQUE, m, "It becomes brighter.");	989	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes brighter.");
1921		990
1922	/* Do extra checking. since m->darkness is a unsigned value,	991	darkness = clamp (darkness + change, -MAX_DARKNESS, MAX_DARKNESS);
1923	* we need to be extra careful about negative values.
1924	* In general, the checks below are only needed if change
1925	* is not +/-1
1926	*/
1927	if (new_level < 0)
1928	m->darkness = 0;
1929	else if (new_level >= MAX_DARKNESS)
1930	m->darkness = MAX_DARKNESS;
1931	else
1932	m->darkness = new_level;
1933		992
1934	/* All clients need to get re-updated for the change */	993	/* All clients need to get re-updated for the change */
1935	update_all_map_los (m);	994	update_all_map_los (this);
		995
1936	return 1;	996	return 1;
1937	}	997	}
1938
1939		998
1940	/*	999	/*
1941	* This function updates various attributes about a specific space	1000	* This function updates various attributes about a specific space
1942	* on the map (what it looks like, whether it blocks magic,	1001	* on the map (what it looks like, whether it blocks magic,
1943	* has a living creatures, prevents people from passing	1002	* has a living creatures, prevents people from passing
1944	* through, etc)	1003	* through, etc)
1945	*/	1004	*/
1946	void	1005	void
1947	update_position (mapstruct *m, int x, int y)	1006	mapspace::update_ ()
1948	{	1007	{
1949	object *tmp, *last = NULL;	1008	object *last = 0;
1950	uint8 flags = 0, oldflags, light = 0, anywhere = 0;	1009	uint8 flags = P_UPTODATE;
1951	New_Face *top, *floor, *middle;	1010	sint8 light = 0;
1952	object *top_obj, *floor_obj, *middle_obj;
1953	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;
1954		1016
1955	oldflags = GET_MAP_FLAGS (m, x, y);	1017	//object *middle = 0;
1956	if (!(oldflags & P_NEED_UPDATE))	1018	//object *top = 0;
1957	{	1019	//object *floor = 0;
1958	LOG (llevDebug, "update_position called with P_NEED_UPDATE not set: %s (%d, %d)\n", m->path, x, y);	1020	// this seems to generate better code than using locals, above
1959	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)
1960	}	1028	{
1961		1029	// Lights are additive, up to MAX_LIGHT_RADIUS, see los.C)
1962	middle = blank_face;
1963	top = blank_face;
1964	floor = blank_face;
1965
1966	middle_obj = NULL;
1967	top_obj = NULL;
1968	floor_obj = NULL;
1969
1970	for (tmp = get_map_ob (m, x, y); tmp; last = tmp, tmp = tmp->above)
1971	{
1972
1973	/* This could be made additive I guess (two lights better than
1974	* one). But if so, it shouldn't be a simple additive - 2
1975	* light bulbs do not illuminate twice as far as once since
1976	* it is a disapation factor that is squared (or is it cubed?)
1977	*/
1978	if (tmp->glow_radius > light)
1979	light = tmp->glow_radius;	1030	light += tmp->glow_radius;
1980		1031
1981	/* This call is needed in order to update objects the player	1032	/* This call is needed in order to update objects the player
1982	* is standing in that have animations (ie, grass, fire, etc).	1033	* is standing in that have animations (ie, grass, fire, etc).
1983	* However, it also causes the look window to be re-drawn	1034	* However, it also causes the look window to be re-drawn
1984	* 3 times each time the player moves, because many of the	1035	* 3 times each time the player moves, because many of the
1985	* functions the move_player calls eventualy call this.	1036	* functions the move_player calls eventualy call this.
1986	*	1037	*
1987	* Always put the player down for drawing.	1038	* Always put the player down for drawing.
1988	*/	1039	*/
1989	if (!tmp->invisible)	1040	if (expect_true (!tmp->invisible))
1990	{	1041	{
1991	if ((tmp->type == PLAYER || QUERY_FLAG (tmp, FLAG_MONSTER)))	1042	if (expect_false (tmp->type == PLAYER || tmp->flag [FLAG_MONSTER]))
1992	{
1993	top = tmp->face;
1994	top_obj = tmp;	1043	top = tmp;
1995	}	1044	else if (expect_false (tmp->flag [FLAG_IS_FLOOR]))
1996	else if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))
1997	{	1045	{
1998	/* 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,
1999	* so should not be visible, so we clear them.	1047	* so should not be visible, so we clear them.
2000	*/	1048	*/
2001	middle = blank_face;	1049	middle = 0;
2002	top = blank_face;	1050	top = 0;
2003	floor = tmp->face;
2004	floor_obj = tmp;	1051	floor = tmp;
		1052	volume = 0;
		1053	items = 0;
2005	}	1054	}
2006	/* Flag anywhere have high priority */	1055	else
2007	else if (QUERY_FLAG (tmp, FLAG_SEE_ANYWHERE))
2008	{	1056	{
2009	middle = tmp->face;	1057	if (expect_true (!tmp->flag [FLAG_NO_PICK]))
		1058	{
		1059	++items;
		1060	volume += tmp->volume ();
		1061	}
2010		1062
2011	middle_obj = tmp;	1063	/* Flag anywhere have high priority */
		1064	if (expect_false (tmp->flag [FLAG_SEE_ANYWHERE]))
2012	anywhere = 1;	1065	anywhere = tmp;
2013	}	1066
2014	/* Find the highest visible face around. If equal	1067	/* Find the highest visible face around. If equal
2015	* visibilities, we still want the one nearer to the	1068	* visibilities, we still want the one nearer to the
2016	* top	1069	* top
2017	*/	1070	*/
2018	else if (middle == blank_face || (tmp->face->visibility > middle->visibility && !anywhere))	1071	if (expect_false (::faces [tmp->face].visibility >= middle_visibility))
2019	{	1072	{
2020	middle = tmp->face;	1073	middle_visibility = ::faces [tmp->face].visibility;
2021	middle_obj = tmp;	1074	middle = tmp;
		1075	}
2022	}	1076	}
2023	}	1077	}
2024	if (tmp == tmp->above)
2025	{
2026	LOG (llevError, "Error in structure of map\n");
2027	exit (-1);
2028	}
2029		1078
2030	move_slow |= tmp->move_slow;	1079	move_slow |= tmp->move_slow;
2031	move_block |= tmp->move_block;	1080	move_block |= tmp->move_block;
2032	move_on |= tmp->move_on;	1081	move_on |= tmp->move_on;
2033	move_off |= tmp->move_off;	1082	move_off |= tmp->move_off;
2034	move_allow |= tmp->move_allow;	1083	move_allow |= tmp->move_allow;
2035		1084
2036	if (QUERY_FLAG (tmp, FLAG_ALIVE))	1085	allflags |= tmp->flag;
2037	flags |= P_IS_ALIVE;	1086
2038	if (QUERY_FLAG (tmp, FLAG_NO_MAGIC))	1087	if (tmp->type == PLAYER) flags |= P_PLAYER;
2039	flags |= P_NO_MAGIC;
2040	if (QUERY_FLAG (tmp, FLAG_DAMNED))
2041	flags |= P_NO_CLERIC;
2042	if (tmp->type == SAFE_GROUND)	1088	if (tmp->type == SAFE_GROUND) flags |= P_SAFE;
2043	flags |= P_SAFE;
2044
2045	if (QUERY_FLAG (tmp, FLAG_BLOCKSVIEW))
2046	flags |= P_BLOCKSVIEW;
2047	} /* for stack of objects */
2048
2049	/* we don't want to rely on this function to have accurate flags, but
2050	* since we're already doing the work, we calculate them here.
2051	* if they don't match, logic is broken someplace.
2052	*/
2053	if (((oldflags & ~(P_NEED_UPDATE | P_NO_ERROR)) != flags) && (!(oldflags & P_NO_ERROR)))
2054	{	1089	}
2055	LOG (llevDebug, "update_position: updated flags do not match old flags: %s (old=%d,new=%d) %x != %x\n",	1090
2056	m->path, x, y, (oldflags & ~P_NEED_UPDATE), flags);	1091	// FLAG_SEE_ANYWHERE takes precedence
2057	}	1092	if (anywhere)
2058	SET_MAP_FLAGS (m, x, y, flags);	1093	middle = anywhere;
2059	SET_MAP_MOVE_BLOCK (m, x, y, move_block & ~move_allow);	1094
2060	SET_MAP_MOVE_ON (m, x, y, move_on);	1095	// ORing all flags together and checking them here is much faster
2061	SET_MAP_MOVE_OFF (m, x, y, move_off);	1096	if (allflags [FLAG_BLOCKSVIEW]) flags |= P_BLOCKSVIEW;
2062	SET_MAP_MOVE_SLOW (m, x, y, move_slow);	1097	if (allflags [FLAG_NO_MAGIC] ) flags |= P_NO_MAGIC;
		1098	if (allflags [FLAG_ALIVE] ) flags |= P_IS_ALIVE;
		1099	if (allflags [FLAG_DAMNED] ) flags |= P_NO_CLERIC;
		1100
		1101	this->light = min (light, MAX_LIGHT_RADIUS);
		1102	this->flags_ = flags;
		1103	this->move_block = move_block & ~move_allow;
		1104	this->move_on = move_on;
		1105	this->move_off = move_off;
		1106	this->move_slow = move_slow;
		1107	this->volume_ = (volume + 1023) / 1024;
		1108	this->items_ = upos_min (items, 65535); // assume nrof <= 2**31
2063		1109
2064	/* 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),
2065	* 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
2066	* this point.	1112	* this point.
2067	* middle contains the highest visibility face.	1113	* middle contains the highest visibility face.
…		…
2074	* middle face. This should not happen, as we already have the	1120	* middle face. This should not happen, as we already have the
2075	* else statement above so middle should not get set. OTOH, it	1121	* else statement above so middle should not get set. OTOH, it
2076	* 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.
2077	*/	1123	*/
2078	if (top == middle)	1124	if (top == middle)
2079	middle = blank_face;	1125	middle = 0;
2080		1126
2081	/* There are three posibilities at this point:	1127	/* There are three posibilities at this point:
2082	* 1) top face is set, need middle to be set.	1128	* 1) top face is set, need middle to be set.
2083	* 2) middle is set, need to set top.	1129	* 2) middle is set, need to set top.
2084	* 3) neither middle or top is set - need to set both.	1130	* 3) neither middle or top is set - need to set both.
2085	*/	1131	*/
2086		1132
2087	for (tmp = last; tmp; tmp = tmp->below)	1133	for (object *tmp = last; tmp; tmp = tmp->below)
2088	{	1134	{
2089	/* 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 */
2090	if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))	1136	if (tmp->flag [FLAG_IS_FLOOR])
2091	break;	1137	break;
2092		1138
2093	/* If two top faces are already set, quit processing */	1139	/* If two top faces are already set, quit processing */
2094	if ((top != blank_face) && (middle != blank_face))	1140	if (top && middle)
2095	break;	1141	break;
2096		1142
2097	/* Only show visible faces, unless its the editor - show all */	1143	/* Only show visible faces */
2098	if (!tmp->invisible || editor)	1144	if (!tmp->invisible)
2099	{	1145	{
2100	/* Fill in top if needed */	1146	/* Fill in top if needed */
2101	if (top == blank_face)	1147	if (!top)
2102	{	1148	{
2103	top = tmp->face;
2104	top_obj = tmp;	1149	top = tmp;
2105	if (top == middle)	1150	if (top == middle)
2106	middle = blank_face;	1151	middle = 0;
2107	}	1152	}
2108	else	1153	else
2109	{	1154	{
2110	/* top is already set - we should only get here if	1155	/* top is already set - we should only get here if
2111	* middle is not set	1156	* middle is not set
2112	*	1157	*
2113	* Set the middle face and break out, since there is nothing	1158	* Set the middle face and break out, since there is nothing
2114	* more to fill in. We don't check visiblity here, since	1159	* more to fill in. We don't check visiblity here, since
2115	*	1160	*
2116	*/	1161	*/
2117	if (tmp->face != top)	1162	if (tmp != top)
2118	{	1163	{
2119	middle = tmp->face;
2120	middle_obj = tmp;	1164	middle = tmp;
2121	break;	1165	break;
2122	}	1166	}
2123	}	1167	}
2124	}	1168	}
2125	}	1169	}
		1170
2126	if (middle == floor)	1171	if (middle == floor)
2127	middle = blank_face;	1172	middle = 0;
		1173
2128	if (top == middle)	1174	if (top == middle)
2129	middle = blank_face;	1175	middle = 0;
2130	SET_MAP_FACE (m, x, y, top, 0);
2131	if (top != blank_face)
2132	SET_MAP_FACE_OBJ (m, x, y, top_obj, 0);
2133	else
2134	SET_MAP_FACE_OBJ (m, x, y, NULL, 0);
2135	SET_MAP_FACE (m, x, y, middle, 1);
2136	if (middle != blank_face)
2137	SET_MAP_FACE_OBJ (m, x, y, middle_obj, 1);
2138	else
2139	SET_MAP_FACE_OBJ (m, x, y, NULL, 1);
2140	SET_MAP_FACE (m, x, y, floor, 2);
2141	if (floor != blank_face)
2142	SET_MAP_FACE_OBJ (m, x, y, floor_obj, 2);
2143	else
2144	SET_MAP_FACE_OBJ (m, x, y, NULL, 2);
2145	SET_MAP_LIGHT (m, x, y, light);
2146	}
2147		1176
2148		1177	#if 0
2149	void	1178	faces_obj [0] = top;
2150	set_map_reset_time (mapstruct *map)	1179	faces_obj [1] = middle;
2151	{	1180	faces_obj [2] = floor;
2152	int timeout;	1181	#endif
2153
2154	timeout = MAP_RESET_TIMEOUT (map);
2155	if (timeout <= 0)
2156	timeout = MAP_DEFAULTRESET;
2157	if (timeout >= MAP_MAXRESET)
2158	timeout = MAP_MAXRESET;
2159	MAP_WHEN_RESET (map) = seconds () + timeout;
2160	}	1182	}
2161		1183
2162	/* this updates the orig_map->tile_map[tile_num] value after loading	1184	maptile *
2163	* the map. It also takes care of linking back the freshly loaded	1185	maptile::tile_available (int dir, bool load)
2164	* maps tile_map values if it tiles back to this one. It returns
2165	* the value of orig_map->tile_map[tile_num]. It really only does this
2166	* so that it is easier for calling functions to verify success.
2167	*/
2168
2169	static mapstruct *
2170	load_and_link_tiled_map (mapstruct *orig_map, int tile_num)
2171	{	1186	{
2172	int dest_tile = (tile_num + 2) % 4;	1187	if (tile_path[dir])
2173	char *path = path_combine_and_normalize (orig_map->path, orig_map->tile_path[tile_num]);	1188	{
		1189	if (tile_map[dir] && (!load || tile_map[dir]->in_memory == MAP_ACTIVE))
		1190	return tile_map[dir];
2174		1191
2175	orig_map->tile_map[tile_num] = ready_map_name (path, 0);	1192	if ((tile_map[dir] = find_async (tile_path[dir], this, load)))
		1193	return tile_map[dir];
		1194	}
2176		1195
2177	/* need to do a strcmp here as the orig_map->path is not a shared string */	1196	return 0;
2178	if (orig_map->tile_map[tile_num]->tile_path[dest_tile] && !strcmp (orig_map->tile_map[tile_num]->tile_path[dest_tile], orig_map->path))
2179	orig_map->tile_map[tile_num]->tile_map[dest_tile] = orig_map;
2180
2181	return orig_map->tile_map[tile_num];
2182	}	1197	}
2183		1198
2184	/* this returns TRUE if the coordinates (x,y) are out of	1199	/* this returns TRUE if the coordinates (x,y) are out of
2185	* map m. This function also takes into account any	1200	* map m. This function also takes into account any
2186	* tiling considerations, loading adjacant maps as needed.	1201	* tiling considerations, loading adjacant maps as needed.
2187	* This is the function should always be used when it	1202	* This is the function should always be used when it
2188	* necessary to check for valid coordinates.	1203	* necessary to check for valid coordinates.
2189	* This function will recursively call itself for the	1204	* This function will recursively call itself for the
2190	* tiled maps.	1205	* tiled maps.
2191	*
2192	*
2193	*/	1206	*/
2194	int	1207	int
2195	out_of_map (mapstruct *m, int x, int y)	1208	out_of_map (maptile *m, int x, int y)
2196	{	1209	{
2197
2198	/* If we get passed a null map, this is obviously the	1210	/* If we get passed a null map, this is obviously the
2199	* case. This generally shouldn't happen, but if the	1211	* case. This generally shouldn't happen, but if the
2200	* map loads fail below, it could happen.	1212	* map loads fail below, it could happen.
2201	*/	1213	*/
2202	if (!m)	1214	if (!m)
2203	return 0;	1215	return 0;
2204		1216
2205	if (x < 0)	1217	if (x < 0)
2206	{	1218	{
2207	if (!m->tile_path[3])	1219	if (!m->tile_available (3))
2208	return 1;	1220	return 1;
2209	if (!m->tile_map[3] || m->tile_map[3]->in_memory != MAP_IN_MEMORY)	1221
2210	{
2211	load_and_link_tiled_map (m, 3);
2212	}
2213	return (out_of_map (m->tile_map[3], x + MAP_WIDTH (m->tile_map[3]), y));	1222	return out_of_map (m->tile_map[3], x + m->tile_map[3]->width, y);
2214	}
2215	if (x >= MAP_WIDTH (m))
2216	{	1223	}
2217	if (!m->tile_path[1])	1224
		1225	if (x >= m->width)
		1226	{
		1227	if (!m->tile_available (1))
2218	return 1;	1228	return 1;
2219	if (!m->tile_map[1] || m->tile_map[1]->in_memory != MAP_IN_MEMORY)	1229
2220	{
2221	load_and_link_tiled_map (m, 1);
2222	}
2223	return (out_of_map (m->tile_map[1], x - MAP_WIDTH (m), y));	1230	return out_of_map (m->tile_map[1], x - m->width, y);
2224	}	1231	}
		1232
2225	if (y < 0)	1233	if (y < 0)
2226	{	1234	{
2227	if (!m->tile_path[0])	1235	if (!m->tile_available (0))
2228	return 1;	1236	return 1;
2229	if (!m->tile_map[0] || m->tile_map[0]->in_memory != MAP_IN_MEMORY)	1237
2230	{
2231	load_and_link_tiled_map (m, 0);
2232	}
2233	return (out_of_map (m->tile_map[0], x, y + MAP_HEIGHT (m->tile_map[0])));	1238	return out_of_map (m->tile_map[0], x, y + m->tile_map[0]->height);
2234	}
2235	if (y >= MAP_HEIGHT (m))
2236	{	1239	}
2237	if (!m->tile_path[2])	1240
		1241	if (y >= m->height)
		1242	{
		1243	if (!m->tile_available (2))
2238	return 1;	1244	return 1;
2239	if (!m->tile_map[2] || m->tile_map[2]->in_memory != MAP_IN_MEMORY)	1245
2240	{
2241	load_and_link_tiled_map (m, 2);
2242	}
2243	return (out_of_map (m->tile_map[2], x, y - MAP_HEIGHT (m)));	1246	return out_of_map (m->tile_map[2], x, y - m->height);
2244	}	1247	}
2245		1248
2246	/* Simple case - coordinates are within this local	1249	/* Simple case - coordinates are within this local
2247	* map.	1250	* map.
2248	*/	1251	*/
…		…
2251		1254
2252	/* This is basically the same as out_of_map above, but	1255	/* This is basically the same as out_of_map above, but
2253	* instead we return NULL if no map is valid (coordinates	1256	* instead we return NULL if no map is valid (coordinates
2254	* out of bounds and no tiled map), otherwise it returns	1257	* out of bounds and no tiled map), otherwise it returns
2255	* the map as that the coordinates are really on, and	1258	* the map as that the coordinates are really on, and
2256	* updates x and y to be the localized coordinates.	1259	* updates x and y to be the localised coordinates.
2257	* Using this is more efficient of calling out_of_map	1260	* Using this is more efficient of calling out_of_map
2258	* and then figuring out what the real map is	1261	* and then figuring out what the real map is
2259	*/	1262	*/
2260	mapstruct *	1263	maptile *
2261	get_map_from_coord (mapstruct *m, sint16 * x, sint16 * y)	1264	maptile::xy_find (sint16 &x, sint16 &y)
2262	{	1265	{
2263
2264	if (*x < 0)	1266	if (x < 0)
2265	{	1267	{
2266	if (!m->tile_path[3])	1268	if (!tile_available (3))
2267	return NULL;	1269	return 0;
2268	if (!m->tile_map[3] || m->tile_map[3]->in_memory != MAP_IN_MEMORY)
2269	load_and_link_tiled_map (m, 3);
2270		1270
2271	*x += MAP_WIDTH (m->tile_map[3]);	1271	x += tile_map[3]->width;
2272	return (get_map_from_coord (m->tile_map[3], x, y));	1272	return tile_map[3]->xy_find (x, y);
2273	}
2274	if (*x >= MAP_WIDTH (m))
2275	{	1273	}
2276	if (!m->tile_path[1])	1274
		1275	if (x >= width)
		1276	{
		1277	if (!tile_available (1))
2277	return NULL;	1278	return 0;
2278	if (!m->tile_map[1] || m->tile_map[1]->in_memory != MAP_IN_MEMORY)
2279	load_and_link_tiled_map (m, 1);
2280		1279
2281	*x -= MAP_WIDTH (m);	1280	x -= width;
2282	return (get_map_from_coord (m->tile_map[1], x, y));	1281	return tile_map[1]->xy_find (x, y);
2283	}	1282	}
		1283
2284	if (*y < 0)	1284	if (y < 0)
2285	{	1285	{
2286	if (!m->tile_path[0])	1286	if (!tile_available (0))
2287	return NULL;	1287	return 0;
2288	if (!m->tile_map[0] || m->tile_map[0]->in_memory != MAP_IN_MEMORY)
2289	load_and_link_tiled_map (m, 0);
2290		1288
2291	*y += MAP_HEIGHT (m->tile_map[0]);	1289	y += tile_map[0]->height;
2292	return (get_map_from_coord (m->tile_map[0], x, y));	1290	return tile_map[0]->xy_find (x, y);
2293	}
2294	if (*y >= MAP_HEIGHT (m))
2295	{	1291	}
2296	if (!m->tile_path[2])	1292
		1293	if (y >= height)
		1294	{
		1295	if (!tile_available (2))
2297	return NULL;	1296	return 0;
2298	if (!m->tile_map[2] || m->tile_map[2]->in_memory != MAP_IN_MEMORY)
2299	load_and_link_tiled_map (m, 2);
2300		1297
2301	*y -= MAP_HEIGHT (m);	1298	y -= height;
2302	return (get_map_from_coord (m->tile_map[2], x, y));	1299	return tile_map[2]->xy_find (x, y);
2303	}	1300	}
2304		1301
2305	/* Simple case - coordinates are within this local	1302	/* Simple case - coordinates are within this local
2306	* map.	1303	* map.
2307	*/	1304	*/
2308
2309	return m;	1305	return this;
2310	}	1306	}
2311		1307
2312	/**	1308	/**
2313	* 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
2314	* map1 to map2 in dx/dy.	1310	* map1 to map2 in dx/dy.
2315	*/	1311	*/
2316	static int	1312	int
2317	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)
2318	{	1314	{
2319	if (!map1 || !map2)	1315	if (!map1 || !map2)
2320	return 0;	1316	return 0;
2321		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!)
2322	if (map1 == map2)	1320	if (map1 == map2)
2323	{	1321	{
2324	*dx = 0;	1322	*dx = 0;
2325	*dy = 0;	1323	*dy = 0;
2326
2327	}	1324	}
2328	else if (map1->tile_map[0] == map2)	1325	else if (map1->tile_map[0] == map2)
2329	{ /* up */	1326	{ /* up */
2330	*dx = 0;	1327	*dx = 0;
2331	*dy = -MAP_HEIGHT (map2);	1328	*dy = -map2->height;
2332	}	1329	}
2333	else if (map1->tile_map[1] == map2)	1330	else if (map1->tile_map[1] == map2)
2334	{ /* right */	1331	{ /* right */
2335	*dx = MAP_WIDTH (map1);	1332	*dx = map1->width;
2336	*dy = 0;	1333	*dy = 0;
2337	}	1334	}
2338	else if (map1->tile_map[2] == map2)	1335	else if (map1->tile_map[2] == map2)
2339	{ /* down */	1336	{ /* down */
2340	*dx = 0;	1337	*dx = 0;
2341	*dy = MAP_HEIGHT (map1);	1338	*dy = map1->height;
2342	}	1339	}
2343	else if (map1->tile_map[3] == map2)	1340	else if (map1->tile_map[3] == map2)
2344	{ /* left */	1341	{ /* left */
2345	*dx = -MAP_WIDTH (map2);	1342	*dx = -map2->width;
2346	*dy = 0;	1343	*dy = 0;
2347
2348	}	1344	}
2349	else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[1] == map2)	1345	else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[1] == map2)
2350	{ /* up right */	1346	{ /* up right */
2351	*dx = MAP_WIDTH (map1->tile_map[0]);	1347	*dx = map1->tile_map[0]->width;
2352	*dy = -MAP_HEIGHT (map1->tile_map[0]);	1348	*dy = -map1->tile_map[0]->height;
2353	}	1349	}
2354	else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[3] == map2)	1350	else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[3] == map2)
2355	{ /* up left */	1351	{ /* up left */
2356	*dx = -MAP_WIDTH (map2);	1352	*dx = -map2->width;
2357	*dy = -MAP_HEIGHT (map1->tile_map[0]);	1353	*dy = -map1->tile_map[0]->height;
2358	}	1354	}
2359	else if (map1->tile_map[1] && map1->tile_map[1]->tile_map[0] == map2)	1355	else if (map1->tile_map[1] && map1->tile_map[1]->tile_map[0] == map2)
2360	{ /* right up */	1356	{ /* right up */
2361	*dx = MAP_WIDTH (map1);	1357	*dx = map1->width;
2362	*dy = -MAP_HEIGHT (map2);	1358	*dy = -map2->height;
2363	}	1359	}
2364	else if (map1->tile_map[1] && map1->tile_map[1]->tile_map[2] == map2)	1360	else if (map1->tile_map[1] && map1->tile_map[1]->tile_map[2] == map2)
2365	{ /* right down */	1361	{ /* right down */
2366	*dx = MAP_WIDTH (map1);	1362	*dx = map1->width;
2367	*dy = MAP_HEIGHT (map1->tile_map[1]);	1363	*dy = map1->tile_map[1]->height;
2368	}	1364	}
2369	else if (map1->tile_map[2] && map1->tile_map[2]->tile_map[1] == map2)	1365	else if (map1->tile_map[2] && map1->tile_map[2]->tile_map[1] == map2)
2370	{ /* down right */	1366	{ /* down right */
2371	*dx = MAP_WIDTH (map1->tile_map[2]);	1367	*dx = map1->tile_map[2]->width;
2372	*dy = MAP_HEIGHT (map1);	1368	*dy = map1->height;
2373	}	1369	}
2374	else if (map1->tile_map[2] && map1->tile_map[2]->tile_map[3] == map2)	1370	else if (map1->tile_map[2] && map1->tile_map[2]->tile_map[3] == map2)
2375	{ /* down left */	1371	{ /* down left */
2376	*dx = -MAP_WIDTH (map2);	1372	*dx = -map2->width;
2377	*dy = MAP_HEIGHT (map1);	1373	*dy = map1->height;
2378	}	1374	}
2379	else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[0] == map2)	1375	else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[0] == map2)
2380	{ /* left up */	1376	{ /* left up */
2381	*dx = -MAP_WIDTH (map1->tile_map[3]);	1377	*dx = -map1->tile_map[3]->width;
2382	*dy = -MAP_HEIGHT (map2);	1378	*dy = -map2->height;
2383	}	1379	}
2384	else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[2] == map2)	1380	else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[2] == map2)
2385	{ /* left down */	1381	{ /* left down */
2386	*dx = -MAP_WIDTH (map1->tile_map[3]);	1382	*dx = -map1->tile_map[3]->width;
2387	*dy = MAP_HEIGHT (map1->tile_map[3]);	1383	*dy = map1->tile_map[3]->height;
2388
2389	}	1384	}
2390	else	1385	else
2391	{ /* not "adjacent" enough */
2392	return 0;	1386	return 0;
2393	}
2394		1387
2395	return 1;	1388	return 1;
		1389	}
		1390
		1391	maptile *
		1392	maptile::xy_load (sint16 &x, sint16 &y)
		1393	{
		1394	maptile *map = xy_find (x, y);
		1395
		1396	if (map)
		1397	map->load_sync ();
		1398
		1399	return map;
		1400	}
		1401
		1402	maptile *
		1403	get_map_from_coord (maptile *m, sint16 *x, sint16 *y)
		1404	{
		1405	return m->xy_load (*x, *y);
2396	}	1406	}
2397		1407
2398	/* From map.c	1408	/* From map.c
2399	* This is used by get_player to determine where the other	1409	* This is used by get_player to determine where the other
2400	* creature is. get_rangevector takes into account map tiling,	1410	* creature is. get_rangevector takes into account map tiling,
2401	* 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
2402	* righte value. distance_x/y are distance away, which	1412	* righte value. distance_x/y are distance away, which
2403	* can be negativbe. direction is the crossfire direction scheme	1413	* can be negative. direction is the crossfire direction scheme
2404	* that the creature should head. part is the part of the	1414	* that the creature should head. part is the part of the
2405	* monster that is closest.	1415	* monster that is closest.
2406	*	1416	*
2407	* get_rangevector looks at op1 and op2, and fills in the	1417	* get_rangevector looks at op1 and op2, and fills in the
2408	* structure for op1 to get to op2.	1418	* structure for op1 to get to op2.
…		…
2413	* be unexpected	1423	* be unexpected
2414	*	1424	*
2415	* currently, the only flag supported (0x1) is don't translate for	1425	* currently, the only flag supported (0x1) is don't translate for
2416	* closest body part of 'op1'	1426	* closest body part of 'op1'
2417	*/	1427	*/
2418
2419	void	1428	void
2420	get_rangevector (object *op1, object *op2, rv_vector * retval, int flags)	1429	get_rangevector (object *op1, object *op2, rv_vector *retval, int flags)
2421	{	1430	{
2422	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))
2423	{	1432	{
2424	/* be conservative and fill in _some_ data */	1433	/* be conservative and fill in _some_ data */
2425	retval->distance = 100000;	1434	retval->distance = 10000;
2426	retval->distance_x = 32767;	1435	retval->distance_x = 10000;
2427	retval->distance_y = 32767;	1436	retval->distance_y = 10000;
2428	retval->direction = 0;	1437	retval->direction = 0;
2429	retval->part = 0;	1438	retval->part = 0;
2430	}	1439	}
2431	else	1440	else
2432	{	1441	{
2433	object *best;
2434
2435	retval->distance_x += op2->x - op1->x;	1442	retval->distance_x += op2->x - op1->x;
2436	retval->distance_y += op2->y - op1->y;	1443	retval->distance_y += op2->y - op1->y;
2437		1444
2438	best = op1;	1445	object *best = op1;
		1446
2439	/* If this is multipart, find the closest part now */	1447	/* If this is multipart, find the closest part now */
2440	if (!(flags & 0x1) && op1->more)	1448	if (!(flags & 1) && op1->more)
2441	{	1449	{
2442	object *tmp;	1450	int best_distance = idistance (retval->distance_x, retval->distance_y);
2443	int best_distance = retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y, tmpi;
2444		1451
2445	/* 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
2446	* distance instead of doing all that work above again	1453	* distance instead of doing all that work above again
2447	* since the distance fields we set above are positive in the	1454	* since the distance fields we set above are positive in the
2448	* same axis as is used for multipart objects, the simply arithmetic	1455	* same axis as is used for multipart objects, the simply arithmetic
2449	* below works.	1456	* below works.
2450	*/	1457	*/
2451	for (tmp = op1->more; tmp != NULL; tmp = tmp->more)	1458	for (object *tmp = op1->more; tmp; tmp = tmp->more)
2452	{	1459	{
2453	tmpi = (op1->x - tmp->x + retval->distance_x) * (op1->x - tmp->x + retval->distance_x) +	1460	int tmpi = idistance (op1->x - tmp->x + retval->distance_x, op1->y - tmp->y + retval->distance_y);
2454	(op1->y - tmp->y + retval->distance_y) * (op1->y - tmp->y + retval->distance_y);	1461
2455	if (tmpi < best_distance)	1462	if (tmpi < best_distance)
2456	{	1463	{
2457	best_distance = tmpi;	1464	best_distance = tmpi;
2458	best = tmp;	1465	best = tmp;
2459	}	1466	}
2460	}	1467	}
		1468
2461	if (best != op1)	1469	if (best != op1)
2462	{	1470	{
2463	retval->distance_x += op1->x - best->x;	1471	retval->distance_x += op1->x - best->x;
2464	retval->distance_y += op1->y - best->y;	1472	retval->distance_y += op1->y - best->y;
2465	}	1473	}
2466	}	1474	}
		1475
2467	retval->part = best;	1476	retval->part = best;
2468	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));
2469	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);	1478	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);
2470	}	1479	}
2471	}	1480	}
2472		1481
2473	/* 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
…		…
2478	* 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
2479	* 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
2480	* 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
2481	* field of the rv_vector is set to NULL.	1490	* field of the rv_vector is set to NULL.
2482	*/	1491	*/
2483
2484	void	1492	void
2485	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)
2486	{	1494	{
2487	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))
2488	{	1496	{
2489	/* be conservative and fill in _some_ data */	1497	/* be conservative and fill in _some_ data */
2490	retval->distance = 100000;	1498	retval->distance = 100000;
…		…
2496	else	1504	else
2497	{	1505	{
2498	retval->distance_x += op2->x - x;	1506	retval->distance_x += op2->x - x;
2499	retval->distance_y += op2->y - y;	1507	retval->distance_y += op2->y - y;
2500		1508
2501	retval->part = NULL;	1509	retval->part = 0;
2502	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));
2503	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);	1511	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);
2504	}	1512	}
2505	}	1513	}
2506		1514
2507	/* 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
2508	* (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
2509	* 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
2510	* to op1, this will still return false.	1518	* to op1, this will still return false.
2511	* 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
2512	* and efficient. This could probably be a macro.	1520	* and efficient. This could probably be a macro.
2513	* MSW 2001-08-05	1521	* MSW 2001-08-05
2514	*/	1522	*/
…		…
2517	{	1525	{
2518	int dx, dy;	1526	int dx, dy;
2519		1527
2520	return adjacent_map (op1->map, op2->map, &dx, &dy);	1528	return adjacent_map (op1->map, op2->map, &dx, &dy);
2521	}	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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