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Comparing deliantra/server/common/map.C (file contents):
Revision 1.46 by root, Wed Dec 20 11:36:38 2006 UTC vs.
Revision 1.204 by root, Wed May 4 07:36:40 2011 UTC

1	/*	1	/*
2	CrossFire, A Multiplayer game for X-windows	2	* This file is part of Deliantra, the Roguelike Realtime MMORPG.
3		3	*
		4	* Copyright (©) 2005,2006,2007,2008,2009,2010,2011 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
4	Copyright (C) 2001-2003 Mark Wedel & Crossfire Development Team	5	* Copyright (©) 2001-2003 Mark Wedel & Crossfire Development Team
5	Copyright (C) 1992 Frank Tore Johansen	6	* Copyright (©) 1992 Frank Tore Johansen
6		7	*
7	This program is free software; you can redistribute it and/or modify	8	* Deliantra is free software: you can redistribute it and/or modify it under
8	it under the terms of the GNU General Public License as published by	9	* the terms of the Affero GNU General Public License as published by the
9	the Free Software Foundation; either version 2 of the License, or	10	* Free Software Foundation, either version 3 of the License, or (at your
10	(at your option) any later version.	11	* option) any later version.
11		12	*
12	This program is distributed in the hope that it will be useful,	13	* This program is distributed in the hope that it will be useful,
13	but WITHOUT ANY WARRANTY; without even the implied warranty of	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15	GNU General Public License for more details.	16	* GNU General Public License for more details.
16		17	*
17	You should have received a copy of the GNU General Public License	18	* You should have received a copy of the Affero GNU General Public License
18	along with this program; if not, write to the Free Software	19	* and the GNU General Public License along with this program. If not, see
19	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	20	* <http://www.gnu.org/licenses/>.
20		21	*
21	The authors can be reached via e-mail at <crossfire@schmorp.de>	22	* The authors can be reached via e-mail to <support@deliantra.net>
22	*/	23	*/
23		24
24
25	#include <global.h>
26	#include <funcpoint.h>
27
28	#include <loader.h>
29	#include <unistd.h>	25	#include <unistd.h>
30		26
		27	#include "global.h"
31	#include "path.h"	28	#include "path.h"
32		29
33	/*	30	//+GPL
34	* Returns the maptile which has a name matching the given argument.
35	* return NULL if no match is found.
36	*/
37		31
38	maptile *	32	sint8 maptile::outdoor_darkness;
39	has_been_loaded (const char *name)
40	{
41	maptile *map;
42
43	if (!name || !*name)
44	return 0;
45	for (map = first_map; map; map = map->next)
46	if (!strcmp (name, map->path))
47	break;
48	return (map);
49	}
50
51	/*
52	* This makes a path absolute outside the world of Crossfire.
53	* In other words, it prepends LIBDIR/MAPDIR/ to the given path
54	* and returns the pointer to a static array containing the result.
55	* it really should be called create_mapname
56	*/
57
58	const char *
59	create_pathname (const char *name)
60	{
61	static char buf[MAX_BUF];
62
63	/* Why? having extra / doesn't confuse unix anyplace? Dependancies
64	* someplace else in the code? msw 2-17-97
65	*/
66	if (*name == '/')
67	sprintf (buf, "%s/%s%s", settings.datadir, settings.mapdir, name);
68	else
69	sprintf (buf, "%s/%s/%s", settings.datadir, settings.mapdir, name);
70	return (buf);
71	}
72
73	/*
74	* same as create_pathname, but for the overlay maps.
75	*/
76
77	const char *
78	create_overlay_pathname (const char *name)
79	{
80	static char buf[MAX_BUF];
81
82	/* Why? having extra / doesn't confuse unix anyplace? Dependancies
83	* someplace else in the code? msw 2-17-97
84	*/
85	if (*name == '/')
86	sprintf (buf, "%s/%s%s", settings.localdir, settings.mapdir, name);
87	else
88	sprintf (buf, "%s/%s/%s", settings.localdir, settings.mapdir, name);
89	return (buf);
90	}
91
92	/*
93	* same as create_pathname, but for the template maps.
94	*/
95
96	const char *
97	create_template_pathname (const char *name)
98	{
99	static char buf[MAX_BUF];
100
101	/* Why? having extra / doesn't confuse unix anyplace? Dependancies
102	* someplace else in the code? msw 2-17-97
103	*/
104	if (*name == '/')
105	sprintf (buf, "%s/%s%s", settings.localdir, settings.templatedir, name);
106	else
107	sprintf (buf, "%s/%s/%s", settings.localdir, settings.templatedir, name);
108	return (buf);
109	}
110
111	/*
112	* This makes absolute path to the itemfile where unique objects
113	* will be saved. Converts '/' to '@'. I think it's essier maintain
114	* files than full directory structure, but if this is problem it can
115	* be changed.
116	*/
117	static const char *
118	create_items_path (const char *s)
119	{
120	static char buf[MAX_BUF];
121	char *t;
122
123	if (*s == '/')
124	s++;
125
126	sprintf (buf, "%s/%s/", settings.localdir, settings.uniquedir);
127
128	for (t = buf + strlen (buf); *s; s++, t++)
129	if (*s == '/')
130	*t = '@';
131	else
132	*t = *s;
133	*t = 0;
134	return (buf);
135	}
136
137
138	/*
139	* This function checks if a file with the given path exists.
140	* -1 is returned if it fails, otherwise the mode of the file
141	* is returned.
142	* It tries out all the compression suffixes listed in the uncomp[] array.
143	*
144	* If prepend_dir is set, then we call create_pathname (which prepends
145	* libdir & mapdir). Otherwise, we assume the name given is fully
146	* complete.
147	* Only the editor actually cares about the writablity of this -
148	* the rest of the code only cares that the file is readable.
149	* when the editor goes away, the call to stat should probably be
150	* replaced by an access instead (similar to the windows one, but
151	* that seems to be missing the prepend_dir processing
152	*/
153
154	int
155	check_path (const char *name, int prepend_dir)
156	{
157	char buf[MAX_BUF];
158
159	char *endbuf;
160	struct stat statbuf;
161	int mode = 0;
162
163	if (prepend_dir)
164	strcpy (buf, create_pathname (name));
165	else
166	strcpy (buf, name);
167
168	/* old method (strchr(buf, '\0')) seemd very odd to me -
169	* this method should be equivalant and is clearer.
170	* Can not use strcat because we need to cycle through
171	* all the names.
172	*/
173	endbuf = buf + strlen (buf);
174
175	if (stat (buf, &statbuf))
176	return -1;
177	if (!S_ISREG (statbuf.st_mode))
178	return (-1);
179
180	if (((statbuf.st_mode & S_IRGRP) && getegid () == statbuf.st_gid) ||
181	((statbuf.st_mode & S_IRUSR) && geteuid () == statbuf.st_uid) || (statbuf.st_mode & S_IROTH))
182	mode |= 4;
183
184	if ((statbuf.st_mode & S_IWGRP && getegid () == statbuf.st_gid) ||
185	(statbuf.st_mode & S_IWUSR && geteuid () == statbuf.st_uid) || (statbuf.st_mode & S_IWOTH))
186	mode |= 2;
187
188	return (mode);
189	}
190
191	/*
192	* Prints out debug-information about a map.
193	* Dumping these at llevError doesn't seem right, but is
194	* necessary to make sure the information is in fact logged.
195	*/
196
197	void
198	dump_map (const maptile *m)
199	{
200	LOG (llevError, "Map %s status: %d.\n", m->path, m->in_memory);
201	LOG (llevError, "Size: %dx%d Start: %d,%d\n", MAP_WIDTH (m), MAP_HEIGHT (m), MAP_ENTER_X (m), MAP_ENTER_Y (m));
202
203	if (m->msg != NULL)
204	LOG (llevError, "Message:\n%s", m->msg);
205
206	if (m->maplore != NULL)
207	LOG (llevError, "Lore:\n%s", m->maplore);
208
209	if (m->tmpname != NULL)
210	LOG (llevError, "Tmpname: %s\n", m->tmpname);
211
212	LOG (llevError, "Difficulty: %d\n", m->difficulty);
213	LOG (llevError, "Darkness: %d\n", m->darkness);
214	}
215
216	/*
217	* Prints out debug-information about all maps.
218	* This basically just goes through all the maps and calls
219	* dump_map on each one.
220	*/
221
222	void
223	dump_all_maps (void)
224	{
225	maptile *m;
226
227	for (m = first_map; m; m = m->next)
228	dump_map (m);
229	}
230		33
231	/* This rolls up wall, blocks_magic, blocks_view, etc, all into	34	/* This rolls up wall, blocks_magic, blocks_view, etc, all into
232	* one function that just returns a P_.. value (see map.h)	35	* one function that just returns a P_.. value (see map.h)
233	* it will also do map translation for tiled maps, returning	36	* it will also do map translation for tiled maps, returning
234	* 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
…		…
239	* don't expect to insert/remove anything from those spaces.	42	* don't expect to insert/remove anything from those spaces.
240	*/	43	*/
241	int	44	int
242	get_map_flags (maptile *oldmap, maptile **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)
243	{	46	{
244	sint16 newx, newy;
245	int retval = 0;
246	maptile *mp;
247
248	newx = x;	47	sint16 newx = x;
249	newy = y;	48	sint16 newy = y;
250		49
251	mp = get_map_from_coord (oldmap, &newx, &newy);	50	maptile *mp = get_map_from_coord (oldmap, &newx, &newy);
252		51
253	if (!mp)	52	if (!mp)
254	return P_OUT_OF_MAP;	53	return P_OUT_OF_MAP;
255
256	if (mp != oldmap)
257	retval |= P_NEW_MAP;
258		54
259	if (newmap) *newmap = mp;	55	if (newmap) *newmap = mp;
260	if (nx) *nx = newx;	56	if (nx) *nx = newx;
261	if (ny) *ny = newy;	57	if (ny) *ny = newy;
262		58
263	return retval | mp->at (newx, newy).flags ();	59	return mp->at (newx, newy).flags () | (mp != oldmap ? P_NEW_MAP : 0);
264	}	60	}
265		61
266	/*	62	/*
267	* Returns true if the given coordinate is blocked except by the	63	* Returns true if the given coordinate is blocked except by the
268	* object passed is not blocking. This is used with	64	* object passed is not blocking. This is used with
…		…
276	* by the caller.	72	* by the caller.
277	*/	73	*/
278	int	74	int
279	blocked_link (object *ob, maptile *m, int sx, int sy)	75	blocked_link (object *ob, maptile *m, int sx, int sy)
280	{	76	{
281	object *tmp;
282	int mflags, blocked;
283
284	/* 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
285	* have already checked this.	78	* have already checked this.
286	*/	79	*/
287	if (OUT_OF_REAL_MAP (m, sx, sy))	80	if (OUT_OF_REAL_MAP (m, sx, sy))
288	{	81	{
289	LOG (llevError, "blocked_link: Passed map, x, y coordinates outside of map\n");	82	LOG (llevError | logBacktrace, "blocked_link: Passed map, x, y coordinates outside of map\n");
290	return 1;	83	return 1;
291	}	84	}
292		85
293	/* Save some cycles - instead of calling get_map_flags(), just get the value	86	mapspace &ms = m->at (sx, sy);
294	* directly.
295	*/
296	mflags = m->at (sx, sy).flags ();
297		87
298	blocked = GET_MAP_MOVE_BLOCK (m, sx, sy);	88	int mflags = ms.flags ();
		89	int blocked = ms.move_block;
299		90
300	/* If space is currently not blocked by anything, no need to	91	/* If space is currently not blocked by anything, no need to
301	* go further. Not true for players - all sorts of special	92	* go further. Not true for players - all sorts of special
302	* things we need to do for players.	93	* things we need to do for players.
303	*/	94	*/
304	if (ob->type != PLAYER && !(mflags & P_IS_ALIVE) && (blocked == 0))	95	if (ob->type != PLAYER && !(mflags & P_IS_ALIVE) && blocked == 0)
305	return 0;	96	return 0;
306		97
307	/* 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
308	* 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
309	* 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
310	* or another. Likewise, only if something is blocking us do we	101	* or another. Likewise, only if something is blocking us do we
311	* need to investigate if there is a special circumstance that would	102	* need to investigate if there is a special circumstance that would
312	* let the player through (inventory checkers for example)	103	* let the player through (inventory checkers for example)
313	*/	104	*/
314	if (!(mflags & P_IS_ALIVE) && !OB_TYPE_MOVE_BLOCK (ob, blocked))	105	if (!(mflags & P_IS_ALIVE) && !OB_TYPE_MOVE_BLOCK (ob, blocked))
315	return 0;	106	return 0;
316		107
317	if (ob->head != NULL)
318	ob = ob->head;	108	ob = ob->head_ ();
319		109
320	/* 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
321	* 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
322	* true. If we get through the entire stack, that must mean	112	* true. If we get through the entire stack, that must mean
323	* ob is blocking it, so return 0.	113	* ob is blocking it, so return 0.
324	*/	114	*/
325	for (tmp = GET_MAP_OB (m, sx, sy); tmp; tmp = tmp->above)	115	for (object *tmp = ms.top; tmp; tmp = tmp->below)
326	{	116	{
327		117	if (OB_MOVE_BLOCK (ob, tmp))
328	/* This must be before the checks below. Code for inventory checkers. */
329	if (tmp->type == CHECK_INV && OB_MOVE_BLOCK (ob, tmp))
330	{	118	{
331	/* If last_sp is set, the player/monster needs an object,	119	if (INVOKE_OBJECT (BLOCKED_MOVE, tmp, ob))
332	* so we check for it. If they don't have it, they can't	120	if (RESULT_INT (0))
333	* pass through this space.	121	return 1;
334	*/	122	else
335	if (tmp->last_sp)	123	continue;
		124
		125	if (tmp->type == CHECK_INV)
336	{	126	{
337	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))
338	return 1;	131	return 1;
339	else	132	}
340	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;
341	}	142	}
342	else	143	else
343	{	144	return 1; // unconditional block
344	/* In this case, the player must not have the object -	145
345	* if they do, they can't pass through.
346	*/
347	if (check_inv_recursive (ob, tmp) != NULL) /* player has object */
348	return 1;
349	else
350	continue;
351	}
352	} /* if check_inv */
353	else	146	} else {
354	{	147	// space does not block the ob, directly, but
355	/* Broke apart a big nasty if into several here to make	148	// anything alive that is not a door still
356	* this more readable. first check - if the space blocks	149	// blocks anything
357	* movement, can't move here.	150
358	* second - if a monster, can't move there, unles it is a	151	if (tmp->flag [FLAG_ALIVE]
359	* hidden dm	152	&& tmp->type != DOOR
360	*/	153	&& tmp->head_ () != ob) //TODO: maybe move these check up?
361	if (OB_MOVE_BLOCK (ob, tmp))
362	return 1;
363	if (QUERY_FLAG (tmp, FLAG_ALIVE) && tmp->head != ob && tmp != ob &&
364	tmp->type != DOOR && !(QUERY_FLAG (tmp, FLAG_WIZ) && tmp->contr->hidden))
365	return 1;	154	return 1;
366	}	155	}
367
368	}	156	}
		157
369	return 0;	158	return 0;
370	}	159	}
371		160
372
373	/*	161	/*
374	* 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
375	* This is meant for multi space objects - for single space objecs,	163	* spot. This is meant for multi space objects - for single space objecs,
376	* just calling get_map_blocked and checking that against movement type	164	* just calling get_map_blocked and checking that against movement type
377	* of object. This function goes through all the parts of the	165	* of object. This function goes through all the parts of the multipart
378	* multipart object and makes sure they can be inserted.	166	* object and makes sure they can be inserted.
379	*	167	*
380	* 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.
381	*	169	*
382	* This function has been used to deprecate arch_out_of_map -	170	* This function has been used to deprecate arch_out_of_map -
383	* this function also does that check, and since in most cases,	171	* this function also does that check, and since in most cases,
…		…
394	*	182	*
395	* Note this used to be arch_blocked, but with new movement	183	* Note this used to be arch_blocked, but with new movement
396	* 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
397	* against the move_block values.	185	* against the move_block values.
398	*/	186	*/
399	int	187	bool
400	ob_blocked (const object *ob, maptile *m, sint16 x, sint16 y)	188	object::blocked (maptile *m, int x, int y) const
401	{	189	{
402	archetype *tmp;	190	for (archetype *tmp = arch; tmp; tmp = (archetype *)tmp->more)
403	int flag;
404	maptile *m1;
405	sint16 sx, sy;
406
407	if (ob == NULL)
408	{
409	flag = get_map_flags (m, &m1, x, y, &sx, &sy);
410	if (flag & P_OUT_OF_MAP)
411	return P_OUT_OF_MAP;
412
413	/* don't have object, so don't know what types would block */
414	return (GET_MAP_MOVE_BLOCK (m1, sx, sy));
415	}	191	{
		192	mapxy pos (m, x + tmp->x, y + tmp->y);
416		193
417	for (tmp = ob->arch; tmp != NULL; tmp = tmp->more)	194	if (!pos.normalise ())
418	{	195	return 1;
419	flag = get_map_flags (m, &m1, x + tmp->clone.x, y + tmp->clone.y, &sx, &sy);
420		196
421	if (flag & P_OUT_OF_MAP)	197	mapspace &ms = *pos;
422	return P_OUT_OF_MAP;	198
423	if (flag & P_IS_ALIVE)	199	if (ms.flags () & P_IS_ALIVE)
424	return P_IS_ALIVE;	200	return 1;
425		201
426	/* find_first_free_spot() calls this function. However, often	202	/* However, often ob doesn't have any move type
427	* ob doesn't have any move type (when used to place exits)	203	* (signifying non-moving objects)
428	* 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.
429	*/	205	*/
430		206	if (!move_type && ms.move_block != MOVE_ALL)
431	if (ob->move_type == 0 && GET_MAP_MOVE_BLOCK (m1, sx, sy) != MOVE_ALL)
432	continue;	207	continue;
433		208
434	/* 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
435	* head of the object should correspond for the entire object.	210	* head of the object should correspond for the entire object.
436	*/	211	*/
437	if (OB_TYPE_MOVE_BLOCK (ob, GET_MAP_MOVE_BLOCK (m1, sx, sy)))	212	if (ms.blocks (move_type))
438	return P_NO_PASS;	213	return 1;
439	}	214	}
440		215
441	return 0;	216	return 0;
442	}	217	}
443		218
444	/* When the map is loaded, load_object does not actually insert objects	219	//-GPL
445	* into inventory, but just links them. What this does is go through
446	* and insert them properly.
447	* The object 'container' is the object that contains the inventory.
448	* This is needed so that we can update the containers weight.
449	*/
450		220
451	void	221	void
452	fix_container (object *container)	222	maptile::set_object_flag (int flag, int value)
453	{	223	{
454	object *tmp = container->inv, *next;	224	if (!spaces)
		225	return;
455		226
456	container->inv = NULL;	227	for (mapspace *ms = spaces + size (); ms-- > spaces; )
457	while (tmp != NULL)	228	for (object *tmp = ms->bot; tmp; tmp = tmp->above)
458	{	229	tmp->flag [flag] = value;
459	next = tmp->below;
460	if (tmp->inv)
461	fix_container (tmp);
462	(void) insert_ob_in_ob (tmp, container);
463	tmp = next;
464	}
465	/* sum_weight will go through and calculate what all the containers are
466	* carrying.
467	*/
468	sum_weight (container);
469	}	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
470		259
471	/* 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
472	* 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
473	* 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
474	* they are saved). We do have to look for the old maps that did save	263	* they are saved).
475	* the more sections and not re-add sections for them.
476	*/	264	*/
477		265	void
478	static void	266	maptile::link_multipart_objects ()
479	link_multipart_objects (maptile *m)
480	{	267	{
481	int x, y;	268	if (!spaces)
482	object *tmp, *op, *last, *above;	269	return;
483	archetype *at;
484		270
485	for (x = 0; x < MAP_WIDTH (m); x++)	271	for (mapspace *ms = spaces + size (); ms-- > spaces; )
486	for (y = 0; y < MAP_HEIGHT (m); y++)	272	{
487	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = above)	273	object *op = ms->bot;
		274	while (op)
488	{	275	{
489	above = tmp->above;
490
491	/* already multipart - don't do anything more */	276	/* already multipart - don't do anything more */
492	if (tmp->head || tmp->more)	277	if (op->head_ () == op && !op->more && op->arch->more)
493	continue;
494
495	/* If there is nothing more to this object, this for loop
496	* won't do anything.
497	*/
498	for (at = tmp->arch->more, last = tmp; at != NULL; at = at->more, last = op)
499	{	278	{
500	op = arch_to_object (at);	279	op->remove ();
		280	op->expand_tail ();
501		281
502	/* update x,y coordinates */	282	// FIXME: INS_ON_TOP is just a workaround for the pentagram vs.
503	op->x += tmp->x;	283	// multi-tile monster bug, where INS_ABOVE_FLOOR_ONLY put the monsters
504	op->y += tmp->y;	284	// below the pentagrams... hopefully INS_ON_TOP doesn't break anything
505	op->head = tmp;	285	insert (op, op->x, op->y, 0, INS_NO_MERGE | INS_ON_TOP | INS_NO_WALK_ON);
506	op->map = m;	286
507	last->more = op;	287	op = ms->bot; // we are mutating the mapspace too much with INS_ON_TOP
508	op->name = tmp->name;	288	// so we have to reset the iteration through the mapspace
509	op->title = tmp->title;
510	/* we could link all the parts onto tmp, and then just
511	* call insert_ob_in_map once, but the effect is the same,
512	* as insert_ob_in_map will call itself with each part, and
513	* the coding is simpler to just to it here with each part.
514	*/	289	}
515	insert_ob_in_map (op, op->map, tmp, INS_NO_MERGE | INS_ABOVE_FLOOR_ONLY | INS_NO_WALK_ON);	290	else
516	} /* for at = tmp->arch->more */	291	op = op->above;
517	} /* for objects on this space */	292	}
		293	}
518	}	294	}
		295
		296	//-GPL
519		297
520	/*	298	/*
521	* 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
522	* file pointer.	300	* file pointer.
523	* mapflags is the same as we get with load_original_map
524	*/	301	*/
525	void	302	bool
526	load_objects (maptile *m, object_thawer & fp, int mapflags)	303	maptile::_load_objects (object_thawer &f)
527	{	304	{
528	int i, j;	305	for (;;)
529	int unique;
530	object *op, *prev = NULL, *last_more = NULL, *otmp;
531
532	op = object::create ();
533	op->map = m; /* To handle buttons correctly */
534
535	while ((i = load_object (fp, op, mapflags)))
536	{	306	{
537	/* if the archetype for the object is null, means that we	307	coroapi::cede_to_tick (); // cede once in a while
538	* got an invalid object. Don't do anything with it - the game	308
539	* or editor will not be able to do anything with it either.	309	switch (f.kw)
540	*/
541	if (op->arch == NULL)
542	{	310	{
543	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	{
		317	op->carrying = 0;
		318	op->update_weight ();
		319	}
		320
		321	if (IN_RANGE_EXC (op->x, 0, width) && IN_RANGE_EXC (op->y, 0, height))
		322	{
		323	// we insert manually because
		324	// a) its way faster
		325	// b) we remove manually, too, and there are good reasons for that
		326	// c) it's correct
		327	mapspace &ms = at (op->x, op->y);
		328
		329	op->flag [FLAG_REMOVED] = false;
		330
		331	op->above = 0;
		332	op->below = ms.top;
		333
		334	*(ms.top ? &ms.top->above : &ms.bot) = op;
		335
		336	ms.top = op;
		337	ms.flags_ = 0;
		338	}
		339	else
		340	{
		341	f.parse_warn (format ("object %s out of range", op->debug_desc ()));
		342	op->destroy ();
		343	}
		344	}
		345
544	continue;	346	continue;
545	}
546		347
547
548	switch (i)
549	{
550	case LL_NORMAL:
551	/* if we are loading an overlay, put the floors on the bottom */
552	if ((QUERY_FLAG (op, FLAG_IS_FLOOR) || QUERY_FLAG (op, FLAG_OVERLAY_FLOOR)) && mapflags & MAP_OVERLAY)
553	insert_ob_in_map (op, m, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ABOVE_FLOOR_ONLY | INS_MAP_LOAD);
554	else
555	insert_ob_in_map (op, m, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ON_TOP | INS_MAP_LOAD);
556
557	if (op->inv)
558	sum_weight (op);
559
560	prev = op, last_more = op;
561	break;
562
563	case LL_MORE:	348	case KW_EOF:
564	insert_ob_in_map (op, m, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ABOVE_FLOOR_ONLY);	349	return true;
565	op->head = prev, last_more->more = op, last_more = op;	350
		351	default:
		352	if (!f.parse_error ("map file"))
		353	return false;
566	break;	354	break;
567	}	355	}
568		356
569	if (mapflags & MAP_STYLE)	357	f.next ();
570	remove_from_active_list (op);
571
572	op = object::create ();
573	op->map = m;
574	}
575
576	for (i = 0; i < m->width; i++)
577	{	358	}
578	for (j = 0; j < m->height; j++)	359
		360	return true;
		361	}
		362
		363	void
		364	maptile::activate ()
		365	{
		366	if (in_memory != MAP_INACTIVE)
		367	return;
		368
		369	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		370	for (object *op = ms->bot; op; op = op->above)
		371	op->activate_recursive ();
		372
		373	in_memory = MAP_ACTIVE;
		374	}
		375
		376	void
		377	maptile::deactivate ()
		378	{
		379	if (in_memory != MAP_ACTIVE)
		380	return;
		381
		382	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		383	for (object *op = ms->bot; op; op = op->above)
		384	op->deactivate_recursive ();
		385
		386	in_memory = MAP_INACTIVE;
		387	}
		388
		389	bool
		390	maptile::_save_objects (object_freezer &f, int flags)
		391	{
		392	coroapi::cede_to_tick ();
		393
		394	if (flags & IO_HEADER)
		395	_save_header (f);
		396
		397	if (!spaces)
		398	return false;
		399
		400	for (int i = 0; i < size (); ++i)
		401	{
		402	bool unique = 0;
		403
		404	for (object *op = spaces [i].bot; op; op = op->above)
579	{	405	{
580	unique = 0;	406	unique |= op->flag [FLAG_UNIQUE] && op->flag [FLAG_IS_FLOOR];
581	/* check for unique items, or unique squares */	407
582	for (otmp = GET_MAP_OB (m, i, j); otmp; otmp = otmp->above)	408	if (expect_false (!op->can_map_save ()))
		409	continue;
		410
		411	if (expect_false (unique || op->flag [FLAG_UNIQUE]))
583	{	412	{
584	if (QUERY_FLAG (otmp, FLAG_UNIQUE) || QUERY_FLAG (otmp, FLAG_OBJ_SAVE_ON_OVL))	413	if (flags & IO_UNIQUES)
585	unique = 1;	414	op->write (f);
586
587	if (!(mapflags & (MAP_OVERLAY | MAP_PLAYER_UNIQUE) || unique))
588	SET_FLAG (otmp, FLAG_OBJ_ORIGINAL);
589	}	415	}
		416	else if (expect_true (flags & IO_OBJECTS))
		417	op->write (f);
590	}	418	}
591	}	419	}
592		420
593	op->destroy ();	421	coroapi::cede_to_tick ();
594	link_multipart_objects (m);
595	}
596		422
597	/* This saves all the objects on the map in a non destructive fashion.	423	return true;
598	* Modified by MSW 2001-07-01 to do in a single pass - reduces code,	424	}
599	* and we only save the head of multi part objects - this is needed	425
600	* in order to do map tiling properly.	426	bool
		427	maptile::_save_objects (const char *path, int flags)
		428	{
		429	object_freezer freezer;
		430
		431	if (!_save_objects (freezer, flags))
		432	return false;
		433
		434	return freezer.save (path);
		435	}
		436
		437	void
		438	maptile::init ()
		439	{
		440	in_memory = MAP_SWAPPED;
		441
		442	/* The maps used to pick up default x and y values from the
		443	* map archetype. Mimic that behaviour.
601	*/	444	*/
602	void	445	width = 16;
603	save_objects (maptile *m, object_freezer & fp, object_freezer & fp2, int flag)	446	height = 16;
604	{	447	timeout = 300;
605	int i, j = 0, unique = 0;	448	max_items = MAX_ITEM_PER_ACTION;
606	object *op;	449	max_volume = 2000000; // 2m³
607		450	reset_timeout = 0;
608	/* first pass - save one-part objects */	451	enter_x = 0;
609	for (i = 0; i < MAP_WIDTH (m); i++)	452	enter_y = 0;
610	for (j = 0; j < MAP_HEIGHT (m); j++)
611	{
612	unique = 0;
613	for (op = GET_MAP_OB (m, i, j); op; op = op->above)
614	{
615	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))
616	unique = 1;
617
618	if (op->type == PLAYER)
619	continue;
620
621	if (op->head || op->owner)
622	continue;
623
624	if (unique || QUERY_FLAG (op, FLAG_UNIQUE))
625	save_object (fp2, op, 3);
626	else if (flag == 0 || (flag == 2 && (!QUERY_FLAG (op, FLAG_OBJ_ORIGINAL) && !QUERY_FLAG (op, FLAG_UNPAID))))
627	save_object (fp, op, 3);
628	}
629	}
630	}	453	}
631		454
632	maptile::maptile ()	455	maptile::maptile ()
633	{	456	{
634	in_memory = MAP_SWAPPED;	457	init ();
635	/* The maps used to pick up default x and y values from the
636	* map archetype. Mimic that behaviour.
637	*/
638	MAP_WIDTH (this) = 16;
639	MAP_HEIGHT (this) = 16;
640	MAP_RESET_TIMEOUT (this) = 0;
641	MAP_TIMEOUT (this) = 300;
642	MAP_ENTER_X (this) = 0;
643	MAP_ENTER_Y (this) = 0;
644	/*set part to -1 indicating conversion to weather map not yet done */
645	MAP_WORLDPARTX (this) = -1;
646	MAP_WORLDPARTY (this) = -1;
647	}	458	}
648		459
649	/*	460	maptile::maptile (int w, int h)
650	* Allocates, initialises, and returns a pointer to a maptile.
651	* Modified to no longer take a path option which was not being
652	* used anyways. MSW 2001-07-01
653	*/
654	maptile *
655	get_linked_map (void)
656	{	461	{
657	maptile *mp, *map = new maptile;	462	init ();
658		463
659	for (mp = first_map; mp && mp->next; mp = mp->next);	464	width = w;
		465	height = h;
660		466
661	if (mp == NULL)	467	alloc ();
662	first_map = map;
663	else
664	mp->next = map;
665
666	return map;
667	}	468	}
668		469
669	/*	470	/*
670	* Allocates the arrays contained in a maptile.	471	* Allocates the arrays contained in a maptile.
671	* This basically allocates the dynamic array of spaces for the	472	* This basically allocates the dynamic array of spaces for the
672	* map.	473	* map.
673	*/	474	*/
674	void	475	void
675	maptile::allocate ()	476	maptile::alloc ()
676	{	477	{
677	in_memory = MAP_IN_MEMORY;
678
679	/* Log this condition and free the storage. We could I suppose
680	* realloc, but if the caller is presuming the data will be intact,
681	* that is their poor assumption.
682	*/
683	if (spaces)	478	if (spaces)
684	{
685	LOG (llevError, "allocate_map called with already allocated map (%s)\n", path);
686	free (spaces);
687	}
688
689	spaces = (mapspace *)
690	calloc (1, width * height * sizeof (mapspace));
691
692	if (!spaces)
693	fatal (OUT_OF_MEMORY);
694	}
695
696	/* Create and returns a map of the specific size. Used
697	* in random map code and the editor.
698	*/
699	maptile *
700	get_empty_map (int sizex, int sizey)
701	{
702	maptile *m = get_linked_map ();
703
704	m->width = sizex;
705	m->height = sizey;
706	m->in_memory = MAP_SWAPPED;
707	m->allocate ();
708
709	return m;	479	return;
		480
		481	spaces = salloc0<mapspace> (size ());
710	}	482	}
		483
		484	//+GPL
711		485
712	/* Takes a string from a map definition and outputs a pointer to the array of shopitems	486	/* Takes a string from a map definition and outputs a pointer to the array of shopitems
713	* corresponding to that string. Memory is allocated for this, it must be freed	487	* corresponding to that string. Memory is allocated for this, it must be freed
714	* at a later date.	488	* at a later date.
715	* Called by parse_map_headers below.	489	* Called by parse_map_headers below.
716	*/	490	*/
717
718	static shopitems *	491	static shopitems *
719	parse_shop_string (const char *input_string)	492	parse_shop_string (const char *input_string)
720	{	493	{
721	char *shop_string, *p, *q, *next_semicolon, *next_colon;	494	char *shop_string, *p, *q, *next_semicolon, *next_colon;
722	shopitems *items = NULL;	495	shopitems *items = NULL;
…		…
731	p = strchr (p, ';');	504	p = strchr (p, ';');
732	number_of_entries++;	505	number_of_entries++;
733	if (p)	506	if (p)
734	p++;	507	p++;
735	}	508	}
		509
736	p = shop_string;	510	p = shop_string;
737	strip_endline (p);	511	strip_endline (p);
738	items = new shopitems[number_of_entries + 1];	512	items = new shopitems[number_of_entries + 1];
739	for (i = 0; i < number_of_entries; i++)	513	for (i = 0; i < number_of_entries; i++)
740	{	514	{
741	if (!p)	515	if (!p)
742	{	516	{
743	LOG (llevError, "parse_shop_string: I seem to have run out of string, that shouldn't happen.\n");	517	LOG (llevError, "parse_shop_string: I seem to have run out of string, that shouldn't happen.\n");
744	break;	518	break;
745	}	519	}
		520
746	next_semicolon = strchr (p, ';');	521	next_semicolon = strchr (p, ';');
747	next_colon = strchr (p, ':');	522	next_colon = strchr (p, ':');
748	/* if there is a stregth specified, figure out what it is, we'll need it soon. */	523	/* if there is a stregth specified, figure out what it is, we'll need it soon. */
749	if (next_colon && (!next_semicolon || next_colon < next_semicolon))	524	if (next_colon && (!next_semicolon || next_colon < next_semicolon))
750	items[i].strength = atoi (strchr (p, ':') + 1);	525	items[i].strength = atoi (strchr (p, ':') + 1);
…		…
777	* the next entry while we're at it, better print a warning	552	* the next entry while we're at it, better print a warning
778	*/	553	*/
779	LOG (llevError, "invalid type %s defined in shopitems in string %s\n", p, input_string);	554	LOG (llevError, "invalid type %s defined in shopitems in string %s\n", p, input_string);
780	}	555	}
781	}	556	}
		557
782	items[i].index = number_of_entries;	558	items[i].index = number_of_entries;
783	if (next_semicolon)	559	if (next_semicolon)
784	p = ++next_semicolon;	560	p = ++next_semicolon;
785	else	561	else
786	p = NULL;	562	p = NULL;
787	}	563	}
		564
788	free (shop_string);	565	free (shop_string);
789	return items;	566	return items;
790	}	567	}
791		568
792	/* opposite of parse string, this puts the string that was originally fed in to	569	/* opposite of parse string, this puts the string that was originally fed in to
793	* the map (or something equivilent) into output_string. */	570	* the map (or something equivilent) into output_string. */
794	static void	571	static const char *
795	print_shop_string (maptile *m, char *output_string)	572	print_shop_string (maptile *m)
796	{	573	{
797	int i;	574	static dynbuf_text buf; buf.clear ();
798	char tmp[MAX_BUF];	575	bool first = true;
799		576
800	strcpy (output_string, "");
801	for (i = 0; i < m->shopitems[0].index; i++)	577	for (int i = 0; i < m->shopitems[0].index; i++)
802	{	578	{
		579	if (!first)
		580	buf << ';';
		581
		582	first = false;
		583
803	if (m->shopitems[i].typenum)	584	if (m->shopitems[i].typenum)
804	{	585	{
805	if (m->shopitems[i].strength)	586	if (m->shopitems[i].strength)
806	{
807	sprintf (tmp, "%s:%d;", m->shopitems[i].name, m->shopitems[i].strength);	587	buf.printf ("%s:%d", m->shopitems[i].name, m->shopitems[i].strength);
808	}
809	else	588	else
810	sprintf (tmp, "%s;", m->shopitems[i].name);	589	buf.printf ("%s", m->shopitems[i].name);
811	}	590	}
812	else	591	else
813	{	592	{
814	if (m->shopitems[i].strength)	593	if (m->shopitems[i].strength)
815	{
816	sprintf (tmp, "*:%d;", m->shopitems[i].strength);	594	buf.printf ("*:%d", m->shopitems[i].strength);
817	}
818	else	595	else
819	sprintf (tmp, "*");	596	buf.printf ("*");
820	}	597	}
821	strcat (output_string, tmp);
822	}	598	}
		599
		600	return buf;
823	}	601	}
		602
		603	//-GPL
824		604
825	/* This loads the header information of the map. The header	605	/* This loads the header information of the map. The header
826	* contains things like difficulty, size, timeout, etc.	606	* contains things like difficulty, size, timeout, etc.
827	* this used to be stored in the map object, but with the	607	* this used to be stored in the map object, but with the
828	* addition of tiling, fields beyond that easily named in an	608	* addition of tiling, fields beyond that easily named in an
…		…
830	* put all the stuff in the map object so that names actually make	610	* put all the stuff in the map object so that names actually make
831	* sense.	611	* sense.
832	* This could be done in lex (like the object loader), but I think	612	* This could be done in lex (like the object loader), but I think
833	* currently, there are few enough fields this is not a big deal.	613	* currently, there are few enough fields this is not a big deal.
834	* MSW 2001-07-01	614	* MSW 2001-07-01
835	* return 0 on success, 1 on failure.
836	*/	615	*/
837		616	bool
838	static int	617	maptile::_load_header (object_thawer &thawer)
839	load_map_header (object_thawer & fp, maptile *m)
840	{	618	{
841	char buf[HUGE_BUF], msgbuf[HUGE_BUF], maplorebuf[HUGE_BUF], *key = NULL, *value, *end;	619	for (;;)
842	int msgpos = 0;
843	int maplorepos = 0;
844
845	while (fgets (buf, HUGE_BUF, fp) != NULL)
846	{	620	{
847	buf[HUGE_BUF - 1] = 0;	621	switch (thawer.kw)
848	key = buf;
849
850	while (isspace (*key))
851	key++;
852
853	if (*key == 0)
854	continue; /* empty line */
855
856	value = strchr (key, ' ');
857
858	if (!value)
859	{	622	{
860	if ((end = strchr (key, '\n')))	623	case KW_msg:
861	*end = 0;	624	thawer.get_ml (KW_endmsg, msg);
		625	break;
		626
		627	case KW_lore: // deliantra extension
		628	thawer.get_ml (KW_endlore, maplore);
		629	break;
		630
		631	case KW_maplore:
		632	thawer.get_ml (KW_endmaplore, maplore);
		633	break;
		634
		635	case KW_arch:
		636	if (strcmp (thawer.get_str (), "map"))
		637	LOG (llevError, "%s: loading map and got a non 'arch map' line (arch %s), skipping.\n", &path, thawer.get_str ());
		638	break;
		639
		640	case KW_oid:
		641	thawer.get (this, thawer.get_sint32 ());
		642	break;
		643
		644	case KW_file_format_version: break; // nop
		645
		646	case KW_name: thawer.get (name); break;
		647	case KW_attach: thawer.get (attach); break;
		648	case KW_reset_time: thawer.get (reset_time); break;
		649	case KW_shopgreed: thawer.get (shopgreed); break;
		650	case KW_shopmin: thawer.get (shopmin); break;
		651	case KW_shopmax: thawer.get (shopmax); break;
		652	case KW_shoprace: thawer.get (shoprace); break;
		653	case KW_outdoor: thawer.get (outdoor); break;
		654
		655	case KW_per_player: thawer.get (per_player); break;
		656	case KW_per_party: thawer.get (per_party); break;
		657	case KW_no_reset: thawer.get (no_reset); break;
		658	case KW_no_drop: thawer.get (no_drop); break;
		659
		660	case KW_region: thawer.get (default_region); break;
		661	case KW_shopitems: shopitems = parse_shop_string (thawer.get_str ()); break;
		662
		663	// old names new names
		664	case KW_hp: case KW_enter_x: thawer.get (enter_x); break;
		665	case KW_sp: case KW_enter_y: thawer.get (enter_y); break;
		666	case KW_x: case KW_width: thawer.get (width); break;
		667	case KW_y: case KW_height: thawer.get (height); break;
		668	case KW_weight: case KW_reset_timeout: thawer.get (reset_timeout); break;
		669	case KW_value: case KW_swap_time: thawer.get (timeout); break;
		670	case KW_level: case KW_difficulty: thawer.get (difficulty); difficulty = clamp (difficulty, 1, settings.max_level); break;
		671	case KW_invisible: case KW_darkness: thawer.get (darkness); break;
		672	case KW_stand_still: case KW_fixed_resettime: thawer.get (fixed_resettime); break;
		673
		674	case KW_tile_path_1: thawer.get (tile_path [0]); break;
		675	case KW_tile_path_2: thawer.get (tile_path [1]); break;
		676	case KW_tile_path_3: thawer.get (tile_path [2]); break;
		677	case KW_tile_path_4: thawer.get (tile_path [3]); break;
		678	case KW_tile_path_5: thawer.get (tile_path [4]); break;
		679	case KW_tile_path_6: thawer.get (tile_path [5]); break;
		680
		681	case KW_ERROR:
		682	set_key_text (thawer.kw_str, thawer.value);
		683	break;
		684
		685	case KW_end:
		686	thawer.next ();
		687	return true;
		688
		689	default:
		690	if (!thawer.parse_error ("map"))
		691	return false;
		692	break;
862	}	693	}
863	else
864	{
865	*value = 0;
866	value++;
867	end = strchr (value, '\n');
868		694
869	while (isspace (*value))	695	thawer.next ();
870	{
871	value++;
872
873	if (*value == '\0' || value == end)
874	{
875	/* Nothing but spaces. */
876	value = NULL;
877	break;
878	}
879	}
880	}
881
882	if (!end)
883	{
884	LOG (llevError, "Error loading map header - did not find a newline - perhaps file is truncated? Buf=%s\n", buf);
885	return 1;
886	}
887
888	/* key is the field name, value is what it should be set
889	* to. We've already done the work to null terminate key,
890	* and strip off any leading spaces for both of these.
891	* We have not touched the newline at the end of the line -
892	* these are needed for some values. the end pointer
893	* points to the first of the newlines.
894	* value could be NULL! It would be easy enough to just point
895	* this to "" to prevent cores, but that would let more errors slide
896	* through.
897	*
898	* First check for entries that do not use the value parameter, then
899	* validate that value is given and check for the remaining entries
900	* that use the parameter.
901	*/
902
903	if (!strcmp (key, "msg"))
904	{
905	while (fgets (buf, HUGE_BUF, fp) != NULL)
906	{
907	if (!strcmp (buf, "endmsg\n"))
908	break;
909	else
910	{
911	/* slightly more efficient than strcat */
912	strcpy (msgbuf + msgpos, buf);
913	msgpos += strlen (buf);
914	}
915	}
916	/* There are lots of maps that have empty messages (eg, msg/endmsg
917	* with nothing between). There is no reason in those cases to
918	* keep the empty message. Also, msgbuf contains garbage data
919	* when msgpos is zero, so copying it results in crashes
920	*/
921	if (msgpos != 0)
922	m->msg = strdup (msgbuf);
923	}
924	else if (!strcmp (key, "maplore"))
925	{
926	while (fgets (buf, HUGE_BUF, fp) != NULL)
927	{
928	if (!strcmp (buf, "endmaplore\n"))
929	break;
930	else
931	{
932	/* slightly more efficient than strcat */
933	strcpy (maplorebuf + maplorepos, buf);
934	maplorepos += strlen (buf);
935	}
936	}
937	if (maplorepos != 0)
938	m->maplore = strdup (maplorebuf);
939	}
940	else if (!strcmp (key, "end"))
941	{
942	break;
943	}
944	else if (value == NULL)
945	{
946	LOG (llevError, "Got '%s' line without parameter in map header\n", key);
947	}
948	else if (!strcmp (key, "arch"))
949	{
950	/* This is an oddity, but not something we care about much. */
951	if (strcmp (value, "map\n"))
952	LOG (llevError, "loading map and got a non 'arch map' line(%s %s)?\n", key, value);
953	}
954	else if (!strcmp (key, "name"))
955	{
956	*end = 0;
957	m->name = strdup (value);
958	}
959	/* first strcmp value on these are old names supported
960	* for compatibility reasons. The new values (second) are
961	* what really should be used.
962	*/
963	else if (!strcmp (key, "oid"))
964	fp.get (m, atoi (value));
965	else if (!strcmp (key, "attach"))
966	m->attach = value;
967	else if (!strcmp (key, "hp") || !strcmp (key, "enter_x"))
968	m->enter_x = atoi (value);
969	else if (!strcmp (key, "sp") || !strcmp (key, "enter_y"))
970	m->enter_y = atoi (value);
971	else if (!strcmp (key, "x") || !strcmp (key, "width"))
972	m->width = atoi (value);
973	else if (!strcmp (key, "y") || !strcmp (key, "height"))
974	m->height = atoi (value);
975	else if (!strcmp (key, "weight") || !strcmp (key, "reset_timeout"))
976	m->reset_timeout = atoi (value);
977	else if (!strcmp (key, "value") || !strcmp (key, "swap_time"))
978	m->timeout = atoi (value);
979	else if (!strcmp (key, "level") || !strcmp (key, "difficulty"))
980	m->difficulty = clamp (atoi (value), 1, settings.max_level);
981	else if (!strcmp (key, "invisible") || !strcmp (key, "darkness"))
982	m->darkness = atoi (value);
983	else if (!strcmp (key, "stand_still") || !strcmp (key, "fixed_resettime"))
984	m->fixed_resettime = atoi (value);
985	else if (!strcmp (key, "unique"))
986	m->unique = atoi (value);
987	else if (!strcmp (key, "template"))
988	m->templatemap = atoi (value);
989	else if (!strcmp (key, "region"))
990	m->region = get_region_by_name (value);
991	else if (!strcmp (key, "shopitems"))
992	{
993	*end = 0;
994	m->shopitems = parse_shop_string (value);
995	}
996	else if (!strcmp (key, "shopgreed"))
997	m->shopgreed = atof (value);
998	else if (!strcmp (key, "shopmin"))
999	m->shopmin = atol (value);
1000	else if (!strcmp (key, "shopmax"))
1001	m->shopmax = atol (value);
1002	else if (!strcmp (key, "shoprace"))
1003	{
1004	*end = 0;
1005	m->shoprace = strdup (value);
1006	}
1007	else if (!strcmp (key, "outdoor"))
1008	m->outdoor = atoi (value);
1009	else if (!strcmp (key, "temp"))
1010	m->temp = atoi (value);
1011	else if (!strcmp (key, "pressure"))
1012	m->pressure = atoi (value);
1013	else if (!strcmp (key, "humid"))
1014	m->humid = atoi (value);
1015	else if (!strcmp (key, "windspeed"))
1016	m->windspeed = atoi (value);
1017	else if (!strcmp (key, "winddir"))
1018	m->winddir = atoi (value);
1019	else if (!strcmp (key, "sky"))
1020	m->sky = atoi (value);
1021	else if (!strcmp (key, "nosmooth"))
1022	m->nosmooth = atoi (value);
1023	else if (!strncmp (key, "tile_path_", 10))
1024	{
1025	int tile = atoi (key + 10);
1026
1027	if (tile < 1 || tile > 4)
1028	{
1029	LOG (llevError, "load_map_header: tile location %d out of bounds (%s)\n", tile, m->path);
1030	}
1031	else
1032	{
1033	char *path;
1034
1035	*end = 0;
1036
1037	if (m->tile_path[tile - 1])
1038	{
1039	LOG (llevError, "load_map_header: tile location %d duplicated (%s)\n", tile, m->path);
1040	free (m->tile_path[tile - 1]);
1041	m->tile_path[tile - 1] = NULL;
1042	}
1043
1044	if (check_path (value, 1) != -1)
1045	{
1046	/* The unadorned path works. */
1047	path = value;
1048	}
1049	else
1050	{
1051	/* Try again; it could be a relative exit. */
1052
1053	path = path_combine_and_normalize (m->path, value);
1054
1055	if (check_path (path, 1) == -1)
1056	{
1057	LOG (llevError, "get_map_header: Bad tile path %s %s\n", m->path, value);
1058	path = NULL;
1059	}
1060	}
1061
1062	if (editor)
1063	{
1064	/* Use the value as in the file. */
1065	m->tile_path[tile - 1] = strdup (value);
1066	}
1067	else if (path != NULL)
1068	{
1069	/* Use the normalized value. */
1070	m->tile_path[tile - 1] = strdup (path);
1071	}
1072	} /* end if tile direction (in)valid */
1073	}
1074	else
1075	LOG (llevError, "Got unknown value in map header: %s %s\n", key, value);
1076	}
1077
1078	if (!key || strcmp (key, "end"))
1079	{	696	}
1080	LOG (llevError, "Got premature eof on map header!\n");
1081	return 1;
1082	}
1083		697
1084	return 0;	698	abort ();
1085	}	699	}
1086		700
1087	/*	701	//+GPL
1088	* Opens the file "filename" and reads information about the map
1089	* from the given file, and stores it in a newly allocated
1090	* maptile. A pointer to this structure is returned, or NULL on failure.
1091	* flags correspond to those in map.h. Main ones used are
1092	* MAP_PLAYER_UNIQUE, in which case we don't do any name changes, and
1093	* MAP_BLOCK, in which case we block on this load. This happens in all
1094	* cases, no matter if this flag is set or not.
1095	* MAP_STYLE: style map - don't add active objects, don't add to server
1096	* managed map list.
1097	*/
1098
1099	maptile *
1100	load_original_map (const char *filename, int flags)
1101	{
1102	maptile *m;
1103	char pathname[MAX_BUF];
1104
1105	if (flags & MAP_PLAYER_UNIQUE)
1106	strcpy (pathname, filename);
1107	else if (flags & MAP_OVERLAY)
1108	strcpy (pathname, create_overlay_pathname (filename));
1109	else
1110	strcpy (pathname, create_pathname (filename));
1111
1112	LOG (llevDebug, "load_original_map(%x): %s (%s)\n", flags, filename, pathname);
1113
1114	object_thawer thawer (pathname);
1115
1116	if (!thawer)
1117	return 0;
1118
1119	m = get_linked_map ();
1120
1121	strcpy (m->path, filename);
1122	if (load_map_header (thawer, m))
1123	{
1124	LOG (llevError, "Error loading map header for %s, flags=%d\n", filename, flags);
1125	delete_map (m);
1126	return NULL;
1127	}
1128
1129	m->allocate ();
1130
1131	m->in_memory = MAP_LOADING;
1132	load_objects (m, thawer, flags & (MAP_BLOCK | MAP_STYLE));
1133
1134	m->in_memory = MAP_IN_MEMORY;
1135	if (!MAP_DIFFICULTY (m))
1136	MAP_DIFFICULTY (m) = calculate_difficulty (m);
1137	set_map_reset_time (m);
1138	m->instantiate ();
1139	return (m);
1140	}
1141
1142	/*
1143	* Loads a map, which has been loaded earlier, from file.
1144	* Return the map object we load into (this can change from the passed
1145	* option if we can't find the original map)
1146	*/
1147
1148	static maptile *
1149	load_temporary_map (maptile *m)
1150	{
1151	char buf[MAX_BUF];
1152
1153	if (!m->tmpname)
1154	{
1155	LOG (llevError, "No temporary filename for map %s\n", m->path);
1156	strcpy (buf, m->path);
1157	delete_map (m);
1158	m = load_original_map (buf, 0);
1159	if (m == NULL)
1160	return NULL;
1161	fix_auto_apply (m); /* Chests which open as default */
1162	return m;
1163	}
1164
1165	object_thawer thawer (m->tmpname);
1166
1167	if (!thawer)
1168	{
1169	strcpy (buf, m->path);
1170	delete_map (m);
1171	m = load_original_map (buf, 0);
1172	if (!m)
1173	return NULL;
1174	fix_auto_apply (m); /* Chests which open as default */
1175	return m;
1176	}
1177
1178	if (load_map_header (thawer, m))
1179	{
1180	LOG (llevError, "Error loading map header for %s (%s)\n", m->path, m->tmpname);
1181	delete_map (m);
1182	m = load_original_map (m->path, 0);
1183	return NULL;
1184	}
1185
1186	m->allocate ();
1187
1188	m->in_memory = MAP_LOADING;
1189	load_objects (m, thawer, 0);
1190
1191	m->in_memory = MAP_IN_MEMORY;
1192	INVOKE_MAP (SWAPIN, m);
1193	return m;
1194	}
1195
1196	/*
1197	* Loads a map, which has been loaded earlier, from file.
1198	* Return the map object we load into (this can change from the passed
1199	* option if we can't find the original map)
1200	*/
1201
1202	maptile *
1203	load_overlay_map (const char *filename, maptile *m)
1204	{
1205	char pathname[MAX_BUF];
1206
1207	strcpy (pathname, create_overlay_pathname (filename));
1208
1209	object_thawer thawer (pathname);
1210
1211	if (!thawer)
1212	return m;
1213
1214	if (load_map_header (thawer, m))
1215	{
1216	LOG (llevError, "Error loading map header for overlay %s (%s)\n", m->path, pathname);
1217	delete_map (m);
1218	m = load_original_map (m->path, 0);
1219	return NULL;
1220	}
1221	/*m->allocate ();*/
1222
1223	m->in_memory = MAP_LOADING;
1224	load_objects (m, thawer, MAP_OVERLAY);
1225
1226	m->in_memory = MAP_IN_MEMORY;
1227	return m;
1228	}
1229		702
1230	/******************************************************************************	703	/******************************************************************************
1231	* This is the start of unique map handling code	704	* This is the start of unique map handling code
1232	*****************************************************************************/	705	*****************************************************************************/
1233		706
1234	/* This goes through map 'm' and removed any unique items on the map. */	707	/* This goes through the maptile and removed any unique items on the map. */
1235	static void	708	void
1236	delete_unique_items (maptile *m)	709	maptile::clear_unique_items ()
1237	{	710	{
1238	int i, j, unique;	711	for (int i = 0; i < size (); ++i)
1239	object *op, *next;
1240
1241	for (i = 0; i < MAP_WIDTH (m); i++)
1242	for (j = 0; j < MAP_HEIGHT (m); j++)
1243	{	712	{
1244	unique = 0;	713	int unique = 0;
		714	for (object *op = spaces [i].bot; op; )
		715	{
		716	object *above = op->above;
1245		717
1246	for (op = GET_MAP_OB (m, i, j); op; op = next)	718	if (op->flag [FLAG_IS_FLOOR] && op->flag [FLAG_UNIQUE])
		719	unique = 1;
		720
		721	if (op->head_ () == op && (op->flag [FLAG_UNIQUE] || unique))
		722	op->destroy ();
		723
		724	op = above;
		725	}
		726	}
		727	}
		728
		729	//-GPL
		730
		731	bool
		732	maptile::_save_header (object_freezer &freezer)
		733	{
		734	#define MAP_OUT(k) freezer.put (KW(k), k)
		735	#define MAP_OUT2(k,v) freezer.put (KW(k), v)
		736
		737	MAP_OUT2 (arch, CS(map));
		738
		739	if (name) MAP_OUT (name);
		740	MAP_OUT (swap_time);
		741	MAP_OUT (reset_time);
		742	MAP_OUT (reset_timeout);
		743	MAP_OUT (fixed_resettime);
		744	MAP_OUT (no_reset);
		745	MAP_OUT (no_drop);
		746	MAP_OUT (difficulty);
		747	if (default_region) MAP_OUT2 (region, default_region->name);
		748
		749	if (shopitems) MAP_OUT2 (shopitems, print_shop_string (this));
		750	MAP_OUT (shopgreed);
		751	MAP_OUT (shopmin);
		752	MAP_OUT (shopmax);
		753	if (shoprace) MAP_OUT (shoprace);
		754
		755	MAP_OUT (width);
		756	MAP_OUT (height);
		757	MAP_OUT (enter_x);
		758	MAP_OUT (enter_y);
		759	MAP_OUT (darkness);
		760	MAP_OUT (outdoor);
		761
		762	if (msg) freezer.put (KW(msg) , KW(endmsg) , msg);
		763	if (maplore) freezer.put (KW(maplore), KW(endmaplore), maplore);
		764
		765	MAP_OUT (per_player);
		766	MAP_OUT (per_party);
		767
		768	if (tile_path [0]) MAP_OUT2 (tile_path_1, tile_path [0]);
		769	if (tile_path [1]) MAP_OUT2 (tile_path_2, tile_path [1]);
		770	if (tile_path [2]) MAP_OUT2 (tile_path_3, tile_path [2]);
		771	if (tile_path [3]) MAP_OUT2 (tile_path_4, tile_path [3]);
		772	if (tile_path [4]) MAP_OUT2 (tile_path_5, tile_path [4]);
		773	if (tile_path [5]) MAP_OUT2 (tile_path_6, tile_path [5]);
		774
		775	freezer.put (this);
		776	freezer.put (KW(end));
		777
		778	return true;
		779	}
		780
		781	bool
		782	maptile::_save_header (const char *path)
		783	{
		784	object_freezer freezer;
		785
		786	if (!_save_header (freezer))
		787	return false;
		788
		789	return freezer.save (path);
		790	}
		791
		792	//+GPL
		793
		794	/*
		795	* Remove and free all objects in the given map.
		796	*/
		797	void
		798	maptile::clear ()
		799	{
		800	if (spaces)
		801	{
		802	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		803	while (object *op = ms->bot)
1247	{	804	{
		805	// manually remove, as to not trigger anything
1248	next = op->above;	806	if (ms->bot = op->above)
		807	ms->bot->below = 0;
1249		808
1250	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))	809	op->flag [FLAG_REMOVED] = true;
1251	unique = 1;
1252		810
1253	if (op->head == NULL && (QUERY_FLAG (op, FLAG_UNIQUE) || unique))	811	object *head = op->head_ ();
		812	if (op == head)
		813	op->destroy ();
		814	else if (head->map != op->map)
1254	{	815	{
1255	clean_object (op);	816	LOG (llevDebug, "bad luck for object crossing map borders: %s", head->debug_desc ());
1256
1257	if (QUERY_FLAG (op, FLAG_IS_LINKED))
1258	remove_button_link (op);
1259
1260	op->destroy ();	817	head->destroy ();
1261	}	818	}
1262	}	819	}
		820
		821	sfree0 (spaces, size ());
1263	}	822	}
1264	}
1265		823
1266
1267	/*
1268	* Loads unique objects from file(s) into the map which is in memory
1269	* m is the map to load unique items into.
1270	*/
1271	static void
1272	load_unique_objects (maptile *m)
1273	{
1274	int count;
1275	char firstname[MAX_BUF];
1276
1277	for (count = 0; count < 10; count++)
1278	{
1279	sprintf (firstname, "%s.v%02d", create_items_path (m->path), count);
1280	if (!access (firstname, R_OK))
1281	break;
1282	}
1283	/* If we get here, we did not find any map */
1284	if (count == 10)
1285	return;
1286
1287	object_thawer thawer (firstname);
1288
1289	if (!thawer)
1290	return;
1291
1292	m->in_memory = MAP_LOADING;
1293	if (m->tmpname == NULL) /* if we have loaded unique items from */
1294	delete_unique_items (m); /* original map before, don't duplicate them */
1295	load_objects (m, thawer, 0);
1296
1297	m->in_memory = MAP_IN_MEMORY;
1298	}
1299
1300
1301	/*
1302	* Saves a map to file. If flag is set, it is saved into the same
1303	* file it was (originally) loaded from. Otherwise a temporary
1304	* filename will be genarated, and the file will be stored there.
1305	* The temporary filename will be stored in the maptileure.
1306	* If the map is unique, we also save to the filename in the map
1307	* (this should have been updated when first loaded)
1308	*/
1309
1310	int
1311	new_save_map (maptile *m, int flag)
1312	{
1313	char filename[MAX_BUF], buf[MAX_BUF], shop[MAX_BUF];
1314	int i;
1315
1316	if (flag && !*m->path)
1317	{
1318	LOG (llevError, "Tried to save map without path.\n");
1319	return -1;
1320	}
1321
1322	if (flag || (m->unique) || (m->templatemap))
1323	{
1324	if (!m->unique && !m->templatemap)
1325	{ /* flag is set */
1326	if (flag == 2)
1327	strcpy (filename, create_overlay_pathname (m->path));
1328	else
1329	strcpy (filename, create_pathname (m->path));
1330	}
1331	else
1332	strcpy (filename, m->path);
1333
1334	make_path_to_file (filename);
1335	}
1336	else
1337	{
1338	if (!m->tmpname)
1339	m->tmpname = tempnam (settings.tmpdir, NULL);
1340
1341	strcpy (filename, m->tmpname);
1342	}
1343
1344	LOG (llevDebug, "Saving map %s to %s\n", m->path, filename);
1345	m->in_memory = MAP_SAVING;
1346
1347	object_freezer freezer;
1348
1349	/* legacy */
1350	fprintf (freezer, "arch map\n");
1351	if (m->name)
1352	fprintf (freezer, "name %s\n", m->name);
1353	if (!flag)
1354	fprintf (freezer, "swap_time %d\n", m->swap_time);
1355	if (m->reset_timeout)
1356	fprintf (freezer, "reset_timeout %d\n", m->reset_timeout);
1357	if (m->fixed_resettime)
1358	fprintf (freezer, "fixed_resettime %d\n", m->fixed_resettime);
1359	/* we unfortunately have no idea if this is a value the creator set
1360	* or a difficulty value we generated when the map was first loaded
1361	*/
1362	if (m->difficulty)
1363	fprintf (freezer, "difficulty %d\n", m->difficulty);
1364	if (m->region)
1365	fprintf (freezer, "region %s\n", m->region->name);
1366	if (m->shopitems)
1367	{
1368	print_shop_string (m, shop);
1369	fprintf (freezer, "shopitems %s\n", shop);
1370	}
1371	if (m->shopgreed)
1372	fprintf (freezer, "shopgreed %f\n", m->shopgreed);
1373	if (m->shopmin)
1374	fprintf (freezer, "shopmin %llu\n", m->shopmin);
1375	if (m->shopmax)
1376	fprintf (freezer, "shopmax %llu\n", m->shopmax);
1377	if (m->shoprace)
1378	fprintf (freezer, "shoprace %s\n", m->shoprace);
1379	if (m->darkness)
1380	fprintf (freezer, "darkness %d\n", m->darkness);
1381	if (m->width)
1382	fprintf (freezer, "width %d\n", m->width);
1383	if (m->height)
1384	fprintf (freezer, "height %d\n", m->height);
1385	if (m->enter_x)
1386	fprintf (freezer, "enter_x %d\n", m->enter_x);
1387	if (m->enter_y)
1388	fprintf (freezer, "enter_y %d\n", m->enter_y);
1389	if (m->msg)
1390	fprintf (freezer, "msg\n%sendmsg\n", m->msg);
1391	if (m->maplore)
1392	fprintf (freezer, "maplore\n%sendmaplore\n", m->maplore);
1393	if (m->unique)
1394	fprintf (freezer, "unique %d\n", m->unique);
1395	if (m->templatemap)
1396	fprintf (freezer, "template %d\n", m->templatemap);
1397	if (m->outdoor)
1398	fprintf (freezer, "outdoor %d\n", m->outdoor);
1399	if (m->temp)
1400	fprintf (freezer, "temp %d\n", m->temp);
1401	if (m->pressure)
1402	fprintf (freezer, "pressure %d\n", m->pressure);
1403	if (m->humid)
1404	fprintf (freezer, "humid %d\n", m->humid);
1405	if (m->windspeed)
1406	fprintf (freezer, "windspeed %d\n", m->windspeed);
1407	if (m->winddir)
1408	fprintf (freezer, "winddir %d\n", m->winddir);
1409	if (m->sky)
1410	fprintf (freezer, "sky %d\n", m->sky);
1411	if (m->nosmooth)
1412	fprintf (freezer, "nosmooth %d\n", m->nosmooth);
1413
1414	/* Save any tiling information, except on overlays */
1415	if (flag != 2)
1416	for (i = 0; i < 4; i++)
1417	if (m->tile_path[i])
1418	fprintf (freezer, "tile_path_%d %s\n", i + 1, m->tile_path[i]);
1419
1420	freezer.put (m);
1421	fprintf (freezer, "end\n");
1422
1423	/* In the game save unique items in the different file, but
1424	* in the editor save them to the normal map file.
1425	* If unique map, save files in the proper destination (set by
1426	* player)
1427	*/
1428	if ((flag == 0 || flag == 2) && !m->unique && !m->templatemap)
1429	{
1430	object_freezer unique;
1431
1432	if (flag == 2)
1433	save_objects (m, freezer, unique, 2);
1434	else
1435	save_objects (m, freezer, unique, 0);
1436
1437	sprintf (buf, "%s.v00", create_items_path (m->path));
1438
1439	unique.save (buf);
1440	}
1441	else
1442	{ /* save same file when not playing, like in editor */
1443	save_objects (m, freezer, freezer, 0);
1444	}
1445
1446	freezer.save (filename);
1447
1448	return 0;
1449	}
1450
1451
1452	/*
1453	* Remove and free all objects in the inventory of the given object.
1454	* object.c ?
1455	*/
1456
1457	void
1458	clean_object (object *op)
1459	{
1460	object *tmp, *next;
1461
1462	for (tmp = op->inv; tmp; tmp = next)
1463	{
1464	next = tmp->below;
1465
1466	clean_object (tmp);
1467	if (QUERY_FLAG (tmp, FLAG_IS_LINKED))
1468	remove_button_link (tmp);
1469
1470	tmp->destroy ();
1471	}
1472	}
1473
1474	/*
1475	* Remove and free all objects in the given map.
1476	*/
1477
1478	void
1479	free_all_objects (maptile *m)
1480	{
1481	int i, j;
1482	object *op;
1483
1484	for (i = 0; i < MAP_WIDTH (m); i++)
1485	for (j = 0; j < MAP_HEIGHT (m); j++)
1486	{
1487	object *previous_obj = NULL;
1488
1489	while ((op = GET_MAP_OB (m, i, j)) != NULL)
1490	{
1491	if (op == previous_obj)
1492	{
1493	LOG (llevDebug, "free_all_objects: Link error, bailing out.\n");
1494	break;
1495	}
1496
1497	previous_obj = op;
1498
1499	if (op->head != NULL)
1500	op = op->head;
1501
1502	/* If the map isn't in memory, free_object will remove and
1503	* free objects in op's inventory. So let it do the job.
1504	*/
1505	if (m->in_memory == MAP_IN_MEMORY)
1506	clean_object (op);
1507
1508	op->destroy ();
1509	}
1510	}
1511	}
1512
1513	/*
1514	* Frees everything allocated by the given maptileure.
1515	* don't free tmpname - our caller is left to do that
1516	*/
1517
1518	void
1519	free_map (maptile *m, int flag)
1520	{
1521	int i;
1522
1523	if (!m->in_memory)
1524	{
1525	LOG (llevError, "Trying to free freed map.\n");
1526	return;
1527	}
1528
1529	// TODO: use new/delete
1530	#define FREE_AND_CLEAR(p) { free (p); p = NULL; }
1531
1532	if (flag && m->spaces)
1533	free_all_objects (m);
1534	if (m->name)
1535	FREE_AND_CLEAR (m->name);
1536	if (m->spaces)
1537	FREE_AND_CLEAR (m->spaces);
1538	if (m->msg)
1539	FREE_AND_CLEAR (m->msg);
1540	if (m->maplore)
1541	FREE_AND_CLEAR (m->maplore);
1542
1543	delete [] m->shopitems;
1544	m->shopitems = 0;
1545
1546	if (m->shoprace)
1547	FREE_AND_CLEAR (m->shoprace);
1548
1549	if (m->buttons)	824	if (buttons)
1550	free_objectlinkpt (m->buttons);	825	free_objectlinkpt (buttons), buttons = 0;
1551		826
1552	m->buttons = NULL;	827	sfree0 (regions, size ());
		828	delete [] regionmap; regionmap = 0;
		829	}
1553		830
		831	void
		832	maptile::clear_header ()
		833	{
		834	name = 0;
		835	msg = 0;
		836	maplore = 0;
		837	shoprace = 0;
		838	delete [] shopitems, shopitems = 0;
		839
1554	for (i = 0; i < 4; i++)	840	for (int i = 0; i < TILE_NUM; i++)
1555	{	841	tile_path [i] = 0;
1556	if (m->tile_path[i])
1557	FREE_AND_CLEAR (m->tile_path[i]);
1558	m->tile_map[i] = NULL;
1559	}
1560
1561	m->in_memory = MAP_SWAPPED;
1562
1563	#undef FREE_AND_CLEAR
1564
1565	}	842	}
1566		843
1567	/*	844	maptile::~maptile ()
1568	* function: vanish maptile
1569	* m : pointer to maptile, if NULL no action
1570	* this deletes all the data on the map (freeing pointers)
1571	* and then removes this map from the global linked list of maps.
1572	*/
1573
1574	void
1575	delete_map (maptile *m)
1576	{	845	{
1577	maptile *tmp, *last;	846	assert (destroyed ());
1578	int i;	847	}
1579		848
1580	if (!m)	849	void
1581	return;	850	maptile::clear_links_to (maptile *m)
1582		851	{
1583	m->clear ();
1584
1585	if (m->in_memory == MAP_IN_MEMORY)
1586	{
1587	/* change to MAP_SAVING, even though we are not,
1588	* so that remove_ob doesn't do as much work.
1589	*/
1590	m->in_memory = MAP_SAVING;
1591	free_map (m, 1);
1592	}
1593	/* move this out of free_map, since tmpname can still be needed if
1594	* the map is swapped out.
1595	*/
1596	if (m->tmpname)
1597	{
1598	free (m->tmpname);
1599	m->tmpname = NULL;
1600	}
1601	last = NULL;
1602	/* We need to look through all the maps and see if any maps	852	/* We need to look through all the maps and see if any maps
1603	* are pointing at this one for tiling information. Since	853	* are pointing at this one for tiling information. Since
1604	* tiling can be assymetric, we just can not look to see which	854	* tiling can be asymetric, we just can not look to see which
1605	* maps this map tiles with and clears those.	855	* maps this map tiles with and clears those.
1606	*/	856	*/
1607	for (tmp = first_map; tmp != NULL; tmp = tmp->next)
1608	{
1609	if (tmp->next == m)
1610	last = tmp;
1611
1612	/* This should hopefully get unrolled on a decent compiler */
1613	for (i = 0; i < 4; i++)	857	for (int i = 0; i < 4; i++)
1614	if (tmp->tile_map[i] == m)	858	if (tile_map[i] == m)
1615	tmp->tile_map[i] = NULL;	859	tile_map[i] = 0;
1616	}	860	}
1617		861
1618	/* If last is null, then this should be the first map in the list */	862	void
		863	maptile::do_destroy ()
		864	{
		865	attachable::do_destroy ();
		866
		867	clear ();
		868	}
		869
		870	/* decay and destroy perishable items in a map */
		871	// TODO: should be done regularly, not on map load?
		872	void
		873	maptile::do_decay_objects ()
		874	{
1619	if (!last)	875	if (!spaces)
		876	return;
		877
		878	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		879	for (object *above, *op = ms->bot; op; op = above)
1620	{	880	{
1621	if (m == first_map)	881	above = op->above;
1622	first_map = m->next;	882
		883	// do not decay anything above unique floor tiles (yet :)
		884	if (op->flag [FLAG_IS_FLOOR] && op->flag [FLAG_UNIQUE])
		885	break;
		886
		887	bool destroy = 0;
		888
		889	if (op->flag [FLAG_IS_FLOOR]
		890	|| op->flag [FLAG_OBJ_ORIGINAL]
		891	|| op->flag [FLAG_UNIQUE]
		892	|| op->flag [FLAG_OVERLAY_FLOOR]
		893	|| op->flag [FLAG_UNPAID]
		894	|| op->is_alive ())
		895	; // do not decay
		896	else if (op->is_weapon ())
		897	{
		898	op->stats.dam--;
		899	if (op->stats.dam < 0)
		900	destroy = 1;
		901	}
		902	else if (op->is_armor ())
		903	{
		904	op->stats.ac--;
		905	if (op->stats.ac < 0)
		906	destroy = 1;
		907	}
		908	else if (op->type == FOOD)
		909	{
		910	op->stats.food -= rndm (5, 20);
		911	if (op->stats.food < 0)
		912	destroy = 1;
		913	}
1623	else	914	else
1624	/* m->path is a static char, so should hopefully still have
1625	* some useful data in it.
1626	*/
1627	LOG (llevError, "delete_map: Unable to find map %s in list\n", m->path);
1628	}
1629	else
1630	last->next = m->next;
1631
1632	delete m;
1633	}
1634
1635	/*
1636	* Makes sure the given map is loaded and swapped in.
1637	* name is path name of the map.
1638	* flags meaning:
1639	* 0x1 (MAP_FLUSH): flush the map - always load from the map directory,
1640	* and don't do unique items or the like.
1641	* 0x2 (MAP_PLAYER_UNIQUE) - this is a unique map for each player.
1642	* dont do any more name translation on it.
1643	*
1644	* Returns a pointer to the given map.
1645	*/
1646	maptile *
1647	ready_map_name (const char *name, int flags)
1648	{
1649	maptile *m;
1650
1651	if (!name)
1652	return (NULL);
1653
1654	/* Have we been at this level before? */
1655	m = has_been_loaded (name);
1656
1657	/* Map is good to go, so just return it */
1658	if (m && (m->in_memory == MAP_LOADING || m->in_memory == MAP_IN_MEMORY))
1659	{
1660	return m;
1661	}
1662
1663	/* unique maps always get loaded from their original location, and never
1664	* a temp location. Likewise, if map_flush is set, or we have never loaded
1665	* this map, load it now. I removed the reset checking from here -
1666	* it seems the probability of a player trying to enter a map that should
1667	* reset but hasn't yet is quite low, and removing that makes this function
1668	* a bit cleaner (and players probably shouldn't rely on exact timing for
1669	* resets in any case - if they really care, they should use the 'maps command.
1670	*/
1671	if ((flags & (MAP_FLUSH | MAP_PLAYER_UNIQUE)) || !m)
1672	{
1673
1674	/* first visit or time to reset */
1675	if (m)
1676	{	915	{
1677	clean_tmp_map (m); /* Doesn't make much difference */	916	int mat = op->materials;
1678	delete_map (m);	917
		918	if (mat & M_PAPER
		919	|| mat & M_LEATHER
		920	|| mat & M_WOOD
		921	|| mat & M_ORGANIC
		922	|| mat & M_CLOTH
		923	|| mat & M_LIQUID
		924	|| (mat & M_IRON && rndm (1, 5) == 1)
		925	|| (mat & M_GLASS && rndm (1, 2) == 1)
		926	|| ((mat & M_STONE || mat & M_ADAMANT) && rndm (1, 10) == 1)
		927	|| ((mat & M_SOFT_METAL || mat & M_BONE) && rndm (1, 3) == 1)
		928	//|| (mat & M_ICE && temp > 32)
		929	)
		930	destroy = 1;
1679	}	931	}
1680		932
1681	/* create and load a map */	933	/* adjust overall chance below */
1682	if (flags & MAP_PLAYER_UNIQUE)	934	if (destroy && rndm (0, 1))
1683	LOG (llevDebug, "Trying to load map %s.\n", name);	935	op->destroy ();
1684	else
1685	LOG (llevDebug, "Trying to load map %s.\n", create_pathname (name));
1686
1687	//eval_pv ("$x = Event::time", 1);//D
1688	if (!(m = load_original_map (name, (flags & MAP_PLAYER_UNIQUE))))
1689	return (NULL);
1690	//eval_pv ("warn \"LOAD \", Event::time - $x", 1);//D
1691
1692	fix_auto_apply (m); /* Chests which open as default */
1693
1694	/* If a player unique map, no extra unique object file to load.
1695	* if from the editor, likewise.
1696	*/
1697	if (!(flags & (MAP_FLUSH | MAP_PLAYER_UNIQUE)))
1698	load_unique_objects (m);
1699
1700	if (!(flags & (MAP_FLUSH | MAP_PLAYER_UNIQUE | MAP_OVERLAY)))
1701	{
1702	m = load_overlay_map (name, m);
1703	if (m == NULL)
1704	return NULL;
1705	}	936	}
1706
1707	if (flags & MAP_PLAYER_UNIQUE)
1708	INVOKE_MAP (SWAPIN, m);
1709
1710	}
1711	else
1712	{
1713	/* If in this loop, we found a temporary map, so load it up. */
1714
1715	m = load_temporary_map (m);
1716	if (m == NULL)
1717	return NULL;
1718	load_unique_objects (m);
1719
1720	clean_tmp_map (m);
1721	m->in_memory = MAP_IN_MEMORY;
1722	/* tempnam() on sun systems (probably others) uses malloc
1723	* to allocated space for the string. Free it here.
1724	* In some cases, load_temporary_map above won't find the
1725	* temporary map, and so has reloaded a new map. If that
1726	* is the case, tmpname is now null
1727	*/
1728	if (m->tmpname)
1729	free (m->tmpname);
1730	m->tmpname = NULL;
1731	/* It's going to be saved anew anyway */
1732	}
1733
1734	/* Below here is stuff common to both first time loaded maps and
1735	* temp maps.
1736	*/
1737
1738	decay_objects (m); /* start the decay */
1739	/* In case other objects press some buttons down */
1740	update_buttons (m);
1741	if (m->outdoor)
1742	set_darkness_map (m);
1743	/* run the weather over this map */
1744	weather_effect (name);
1745	return m;
1746	}	937	}
1747
1748		938
1749	/*	939	/*
1750	* This routine is supposed to find out the difficulty of the map.	940	* This routine is supposed to find out the difficulty of the map.
1751	* difficulty does not have a lot to do with character level,	941	* difficulty does not have a lot to do with character level,
1752	* but does have a lot to do with treasure on the map.	942	* but does have a lot to do with treasure on the map.
1753	*	943	*
1754	* Difficulty can now be set by the map creature. If the value stored	944	* Difficulty can now be set by the map creator. If the value stored
1755	* in the map is zero, then use this routine. Maps should really	945	* in the map is zero, then use this routine. Maps should really
1756	* have a difficulty set than using this function - human calculation	946	* have a difficulty set rather than using this function - human calculation
1757	* is much better than this functions guesswork.	947	* is much better than this function's guesswork.
1758	*/	948	*/
1759
1760	int	949	int
1761	calculate_difficulty (maptile *m)	950	maptile::estimate_difficulty () const
1762	{	951	{
1763	object *op;
1764	archetype *at;
1765	int x, y, i;
1766	long monster_cnt = 0;	952	long monster_cnt = 0;
1767	double avgexp = 0;	953	double avgexp = 0;
1768	sint64 total_exp = 0;	954	sint64 total_exp = 0;
1769		955
1770	if (MAP_DIFFICULTY (m))	956	for (mapspace *ms = spaces + size (); ms-- > spaces; )
1771	{	957	for (object *op = ms->bot; op; op = op->above)
1772	LOG (llevDebug, "Using stored map difficulty: %d\n", MAP_DIFFICULTY (m));
1773	return MAP_DIFFICULTY (m);
1774	}
1775
1776	for (x = 0; x < MAP_WIDTH (m); x++)
1777	for (y = 0; y < MAP_HEIGHT (m); y++)
1778	for (op = GET_MAP_OB (m, x, y); op != NULL; op = op->above)
1779	{	958	{
1780	if (QUERY_FLAG (op, FLAG_MONSTER))	959	if (op->flag [FLAG_MONSTER])
1781	{	960	{
1782	total_exp += op->stats.exp;	961	total_exp += op->stats.exp;
1783	monster_cnt++;	962	monster_cnt++;
1784	}	963	}
1785		964
1786	if (QUERY_FLAG (op, FLAG_GENERATOR))	965	if (op->flag [FLAG_GENERATOR])
1787	{	966	{
1788	total_exp += op->stats.exp;	967	total_exp += op->stats.exp;
1789	at = type_to_archetype (GENERATE_TYPE (op));
1790		968
1791	if (at != NULL)	969	if (archetype *at = op->other_arch)
		970	{
1792	total_exp += at->clone.stats.exp * 8;	971	total_exp += at->stats.exp * 8;
1793
1794	monster_cnt++;	972	monster_cnt++;
1795	}	973	}
		974
		975	for (object *inv = op->inv; inv; inv = inv->below)
		976	{
		977	total_exp += op->stats.exp * 8;
		978	monster_cnt++;
		979	}
1796	}	980	}
		981	}
1797		982
1798	avgexp = (double) total_exp / monster_cnt;	983	avgexp = (double) total_exp / monster_cnt;
1799		984
1800	for (i = 1; i <= settings.max_level; i++)	985	for (int i = 1; i <= settings.max_level; i++)
1801	{
1802	if ((level_exp (i, 1) - level_exp (i - 1, 1)) > (100 * avgexp))	986	if ((level_exp (i, 1) - level_exp (i - 1, 1)) > (100 * avgexp))
1803	{
1804	/* LOG(llevDebug, "Calculated difficulty for map: %s: %d\n", m->name, i); */
1805	return i;	987	return i;
1806	}
1807	}
1808		988
1809	return 1;	989	return 1;
1810	}
1811
1812	void
1813	clean_tmp_map (maptile *m)
1814	{
1815	if (m->tmpname == NULL)
1816	return;
1817	INVOKE_MAP (CLEAN, m);
1818	(void) unlink (m->tmpname);
1819	}
1820
1821	void
1822	free_all_maps (void)
1823	{
1824	int real_maps = 0;
1825
1826	while (first_map)
1827	{
1828	/* I think some of the callers above before it gets here set this to be
1829	* saving, but we still want to free this data
1830	*/
1831	if (first_map->in_memory == MAP_SAVING)
1832	first_map->in_memory = MAP_IN_MEMORY;
1833	delete_map (first_map);
1834	real_maps++;
1835	}
1836	LOG (llevDebug, "free_all_maps: Freed %d maps\n", real_maps);
1837	}	990	}
1838		991
1839	/* change_map_light() - used to change map light level (darkness)	992	/* change_map_light() - used to change map light level (darkness)
1840	* up or down. Returns true if successful. It should now be	993	* up or down. Returns true if successful. It should now be
1841	* possible to change a value by more than 1.	994	* possible to change a value by more than 1.
1842	* Move this from los.c to map.c since this is more related	995	* Move this from los.c to map.c since this is more related
1843	* to maps than los.	996	* to maps than los.
1844	* postive values make it darker, negative make it brighter	997	* postive values make it darker, negative make it brighter
1845	*/	998	*/
1846
1847	int	999	int
1848	change_map_light (maptile *m, int change)	1000	maptile::change_map_light (int change)
1849	{	1001	{
1850	int new_level = m->darkness + change;
1851
1852	/* Nothing to do */	1002	/* Nothing to do */
1853	if (!change || (new_level <= 0 && m->darkness == 0) || (new_level >= MAX_DARKNESS && m->darkness >= MAX_DARKNESS))	1003	if (!change)
1854	{
1855	return 0;	1004	return 0;
1856	}
1857		1005
1858	/* inform all players on the map */	1006	/* inform all players on the map */
1859	if (change > 0)	1007	if (change > 0)
1860	new_info_map (NDI_BLACK | NDI_UNIQUE, m, "It becomes darker.");	1008	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes darker.");
1861	else	1009	else
1862	new_info_map (NDI_BLACK | NDI_UNIQUE, m, "It becomes brighter.");	1010	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes brighter.");
1863		1011
1864	/* Do extra checking. since m->darkness is a unsigned value,	1012	darkness = clamp (darkness + change, -MAX_DARKNESS, MAX_DARKNESS);
1865	* we need to be extra careful about negative values.
1866	* In general, the checks below are only needed if change
1867	* is not +/-1
1868	*/
1869	if (new_level < 0)
1870	m->darkness = 0;
1871	else if (new_level >= MAX_DARKNESS)
1872	m->darkness = MAX_DARKNESS;
1873	else
1874	m->darkness = new_level;
1875		1013
1876	/* All clients need to get re-updated for the change */	1014	/* All clients need to get re-updated for the change */
1877	update_all_map_los (m);	1015	update_all_map_los (this);
		1016
1878	return 1;	1017	return 1;
1879	}	1018	}
1880		1019
1881	/*	1020	/*
1882	* This function updates various attributes about a specific space	1021	* This function updates various attributes about a specific space
…		…
1885	* through, etc)	1024	* through, etc)
1886	*/	1025	*/
1887	void	1026	void
1888	mapspace::update_ ()	1027	mapspace::update_ ()
1889	{	1028	{
1890	object *tmp, *last = 0;	1029	object *last = 0;
1891	uint8 flags = 0, light = 0, anywhere = 0;	1030	uint8 flags = P_UPTODATE;
1892	New_Face *top, *floor, *middle;	1031	sint8 light = 0;
1893	object *top_obj, *floor_obj, *middle_obj;
1894	MoveType move_block = 0, move_slow = 0, move_on = 0, move_off = 0, move_allow = 0;	1032	MoveType move_block = 0, move_slow = 0, move_on = 0, move_off = 0, move_allow = 0;
		1033	uint64_t volume = 0;
		1034	uint32_t items = 0;
		1035	object *anywhere = 0;
		1036	uint8_t middle_visibility = 0;
1895		1037
1896	middle = blank_face;	1038	//object *middle = 0;
1897	top = blank_face;	1039	//object *top = 0;
1898	floor = blank_face;	1040	//object *floor = 0;
		1041	// this seems to generate better code than using locals, above
		1042	object *&top = faces_obj[0] = 0;
		1043	object *&middle = faces_obj[1] = 0;
		1044	object *&floor = faces_obj[2] = 0;
1899		1045
1900	middle_obj = 0;	1046	object::flags_t allflags; // all flags of all objects or'ed together
1901	top_obj = 0;
1902	floor_obj = 0;
1903		1047
1904	for (tmp = bottom; tmp; last = tmp, tmp = tmp->above)	1048	for (object *tmp = bot; tmp; last = tmp, tmp = tmp->above)
1905	{	1049	{
1906	/* This could be made additive I guess (two lights better than	1050	// Lights are additive, up to MAX_LIGHT_RADIUS, see los.C)
1907	* one). But if so, it shouldn't be a simple additive - 2
1908	* light bulbs do not illuminate twice as far as once since
1909	* it is a dissapation factor that is cubed.
1910	*/
1911	if (tmp->glow_radius > light)
1912	light = tmp->glow_radius;	1051	light += tmp->glow_radius;
1913		1052
1914	/* This call is needed in order to update objects the player	1053	/* This call is needed in order to update objects the player
1915	* is standing in that have animations (ie, grass, fire, etc).	1054	* is standing in that have animations (ie, grass, fire, etc).
1916	* However, it also causes the look window to be re-drawn	1055	* However, it also causes the look window to be re-drawn
1917	* 3 times each time the player moves, because many of the	1056	* 3 times each time the player moves, because many of the
1918	* functions the move_player calls eventualy call this.	1057	* functions the move_player calls eventualy call this.
1919	*	1058	*
1920	* Always put the player down for drawing.	1059	* Always put the player down for drawing.
1921	*/	1060	*/
1922	if (!tmp->invisible)	1061	if (expect_true (!tmp->invisible))
1923	{	1062	{
1924	if ((tmp->type == PLAYER || QUERY_FLAG (tmp, FLAG_MONSTER)))	1063	if (expect_false (tmp->type == PLAYER || tmp->flag [FLAG_MONSTER]))
1925	{
1926	top = tmp->face;
1927	top_obj = tmp;	1064	top = tmp;
1928	}	1065	else if (expect_false (tmp->flag [FLAG_IS_FLOOR]))
1929	else if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))
1930	{	1066	{
1931	/* If we got a floor, that means middle and top were below it,	1067	/* If we got a floor, that means middle and top were below it,
1932	* so should not be visible, so we clear them.	1068	* so should not be visible, so we clear them.
1933	*/	1069	*/
1934	middle = blank_face;	1070	middle = 0;
1935	top = blank_face;	1071	top = 0;
1936	floor = tmp->face;
1937	floor_obj = tmp;	1072	floor = tmp;
		1073	volume = 0;
		1074	items = 0;
1938	}	1075	}
1939	/* Flag anywhere have high priority */	1076	else
1940	else if (QUERY_FLAG (tmp, FLAG_SEE_ANYWHERE))
1941	{	1077	{
1942	middle = tmp->face;	1078	if (expect_true (!tmp->flag [FLAG_NO_PICK]))
		1079	{
		1080	++items;
		1081	volume += tmp->volume ();
		1082	}
1943		1083
1944	middle_obj = tmp;	1084	/* Flag anywhere have high priority */
		1085	if (expect_false (tmp->flag [FLAG_SEE_ANYWHERE]))
1945	anywhere = 1;	1086	anywhere = tmp;
		1087
		1088	/* Find the highest visible face around. If equal
		1089	* visibilities, we still want the one nearer to the
		1090	* top
		1091	*/
		1092	if (expect_false (::faces [tmp->face].visibility >= middle_visibility))
		1093	{
		1094	middle_visibility = ::faces [tmp->face].visibility;
		1095	middle = tmp;
		1096	}
1946	}	1097	}
1947	/* Find the highest visible face around. If equal
1948	* visibilities, we still want the one nearer to the
1949	* top
1950	*/
1951	else if (middle == blank_face || (tmp->face->visibility > middle->visibility && !anywhere))
1952	{
1953	middle = tmp->face;
1954	middle_obj = tmp;
1955	}
1956	}
1957
1958	if (tmp == tmp->above)
1959	{
1960	LOG (llevError, "Error in structure of map\n");
1961	exit (-1);
1962	}	1098	}
1963		1099
1964	move_slow |= tmp->move_slow;	1100	move_slow |= tmp->move_slow;
1965	move_block |= tmp->move_block;	1101	move_block |= tmp->move_block;
1966	move_on |= tmp->move_on;	1102	move_on |= tmp->move_on;
1967	move_off |= tmp->move_off;	1103	move_off |= tmp->move_off;
1968	move_allow |= tmp->move_allow;	1104	move_allow |= tmp->move_allow;
1969		1105
1970	if (QUERY_FLAG (tmp, FLAG_BLOCKSVIEW)) flags |= P_BLOCKSVIEW;	1106	allflags |= tmp->flag;
1971	if (QUERY_FLAG (tmp, FLAG_NO_MAGIC)) flags |= P_NO_MAGIC;	1107
1972	if (tmp->type == PLAYER) flags |= P_PLAYER;	1108	if (tmp->type == PLAYER) flags |= P_PLAYER;
1973	if (tmp->type == SAFE_GROUND) flags |= P_SAFE;	1109	if (tmp->type == SAFE_GROUND) flags |= P_SAFE;
1974	if (QUERY_FLAG (tmp, FLAG_ALIVE)) flags |= P_IS_ALIVE;
1975	if (QUERY_FLAG (tmp, FLAG_DAMNED)) flags |= P_NO_CLERIC;
1976	}	1110	}
1977		1111
1978	this->light = light;	1112	// FLAG_SEE_ANYWHERE takes precedence
		1113	if (anywhere)
		1114	middle = anywhere;
		1115
		1116	// ORing all flags together and checking them here is much faster
		1117	if (allflags [FLAG_BLOCKSVIEW]) flags |= P_BLOCKSVIEW;
		1118	if (allflags [FLAG_NO_MAGIC] ) flags |= P_NO_MAGIC;
		1119	if (allflags [FLAG_ALIVE] ) flags |= P_IS_ALIVE;
		1120	if (allflags [FLAG_DAMNED] ) flags |= P_NO_CLERIC;
		1121
		1122	this->light = min (light, MAX_LIGHT_RADIUS);
1979	this->flags_ = flags;	1123	this->flags_ = flags;
1980	this->move_block = move_block & ~move_allow;	1124	this->move_block = move_block & ~move_allow;
1981	this->move_on = move_on;	1125	this->move_on = move_on;
1982	this->move_off = move_off;	1126	this->move_off = move_off;
1983	this->move_slow = move_slow;	1127	this->move_slow = move_slow;
		1128	this->volume_ = (volume + 1023) / 1024;
		1129	this->items_ = upos_min (items, 65535); // assume nrof <= 2**31
1984		1130
1985	/* At this point, we have a floor face (if there is a floor),	1131	/* At this point, we have a floor face (if there is a floor),
1986	* and the floor is set - we are not going to touch it at	1132	* and the floor is set - we are not going to touch it at
1987	* this point.	1133	* this point.
1988	* middle contains the highest visibility face.	1134	* middle contains the highest visibility face.
…		…
1995	* middle face. This should not happen, as we already have the	1141	* middle face. This should not happen, as we already have the
1996	* else statement above so middle should not get set. OTOH, it	1142	* else statement above so middle should not get set. OTOH, it
1997	* may be possible for the faces to match but be different objects.	1143	* may be possible for the faces to match but be different objects.
1998	*/	1144	*/
1999	if (top == middle)	1145	if (top == middle)
2000	middle = blank_face;	1146	middle = 0;
2001		1147
2002	/* There are three posibilities at this point:	1148	/* There are three posibilities at this point:
2003	* 1) top face is set, need middle to be set.	1149	* 1) top face is set, need middle to be set.
2004	* 2) middle is set, need to set top.	1150	* 2) middle is set, need to set top.
2005	* 3) neither middle or top is set - need to set both.	1151	* 3) neither middle or top is set - need to set both.
2006	*/	1152	*/
2007		1153
2008	for (tmp = last; tmp; tmp = tmp->below)	1154	for (object *tmp = last; tmp; tmp = tmp->below)
2009	{	1155	{
2010	/* Once we get to a floor, stop, since we already have a floor object */	1156	/* Once we get to a floor, stop, since we already have a floor object */
2011	if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))	1157	if (tmp->flag [FLAG_IS_FLOOR])
2012	break;	1158	break;
2013		1159
2014	/* If two top faces are already set, quit processing */	1160	/* If two top faces are already set, quit processing */
2015	if ((top != blank_face) && (middle != blank_face))	1161	if (top && middle)
2016	break;	1162	break;
2017		1163
2018	/* Only show visible faces, unless its the editor - show all */	1164	/* Only show visible faces */
2019	if (!tmp->invisible || editor)	1165	if (!tmp->invisible)
2020	{	1166	{
2021	/* Fill in top if needed */	1167	/* Fill in top if needed */
2022	if (top == blank_face)	1168	if (!top)
2023	{	1169	{
2024	top = tmp->face;
2025	top_obj = tmp;	1170	top = tmp;
2026	if (top == middle)	1171	if (top == middle)
2027	middle = blank_face;	1172	middle = 0;
2028	}	1173	}
2029	else	1174	else
2030	{	1175	{
2031	/* top is already set - we should only get here if	1176	/* top is already set - we should only get here if
2032	* middle is not set	1177	* middle is not set
2033	*	1178	*
2034	* Set the middle face and break out, since there is nothing	1179	* Set the middle face and break out, since there is nothing
2035	* more to fill in. We don't check visiblity here, since	1180	* more to fill in. We don't check visiblity here, since
2036	*	1181	*
2037	*/	1182	*/
2038	if (tmp->face != top)	1183	if (tmp != top)
2039	{	1184	{
2040	middle = tmp->face;
2041	middle_obj = tmp;	1185	middle = tmp;
2042	break;	1186	break;
2043	}	1187	}
2044	}	1188	}
2045	}	1189	}
2046	}	1190	}
2047		1191
2048	if (middle == floor)	1192	if (middle == floor)
2049	middle = blank_face;	1193	middle = 0;
2050		1194
2051	if (top == middle)	1195	if (top == middle)
2052	middle = blank_face;	1196	middle = 0;
2053		1197
2054	faces [0] = top; faces_obj [0] = top != blank_face ? top_obj : 0;	1198	#if 0
2055	faces [1] = middle; faces_obj [1] = middle != blank_face ? middle_obj : 0;	1199	faces_obj [0] = top;
2056	faces [2] = floor; faces_obj [2] = floor != blank_face ? floor_obj : 0;	1200	faces_obj [1] = middle;
		1201	faces_obj [2] = floor;
		1202	#endif
2057	}	1203	}
2058		1204
2059	void	1205	maptile *
2060	set_map_reset_time (maptile *map)	1206	maptile::tile_available (int dir, bool load)
2061	{	1207	{
2062	int timeout;	1208	if (tile_path[dir])
		1209	{
		1210	// map is there and we don't need to load it OR it's loaded => return what we have
		1211	if (tile_map[dir] && (!load || tile_map[dir]->linkable ()))
		1212	return tile_map[dir];
2063		1213
2064	timeout = MAP_RESET_TIMEOUT (map);	1214	// well, try to locate it then, if possible - maybe it's there already
2065	if (timeout <= 0)	1215	if ((tile_map[dir] = find_async (tile_path[dir], this, load)))
2066	timeout = MAP_DEFAULTRESET;	1216	return tile_map[dir];
2067	if (timeout >= MAP_MAXRESET)	1217	}
2068	timeout = MAP_MAXRESET;
2069	MAP_WHEN_RESET (map) = time (0) + timeout;
2070	}
2071		1218
2072	/* this updates the orig_map->tile_map[tile_num] value after loading	1219	return 0;
2073	* the map. It also takes care of linking back the freshly loaded
2074	* maps tile_map values if it tiles back to this one. It returns
2075	* the value of orig_map->tile_map[tile_num]. It really only does this
2076	* so that it is easier for calling functions to verify success.
2077	*/
2078
2079	static maptile *
2080	load_and_link_tiled_map (maptile *orig_map, int tile_num)
2081	{
2082	int dest_tile = (tile_num + 2) % 4;
2083	char *path = path_combine_and_normalize (orig_map->path, orig_map->tile_path[tile_num]);
2084
2085	orig_map->tile_map[tile_num] = ready_map_name (path, 0);
2086
2087	/* need to do a strcmp here as the orig_map->path is not a shared string */
2088	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))
2089	orig_map->tile_map[tile_num]->tile_map[dest_tile] = orig_map;
2090
2091	return orig_map->tile_map[tile_num];
2092	}	1220	}
2093		1221
2094	/* this returns TRUE if the coordinates (x,y) are out of	1222	/* this returns TRUE if the coordinates (x,y) are out of
2095	* map m. This function also takes into account any	1223	* map m. This function also takes into account any
2096	* tiling considerations, loading adjacant maps as needed.	1224	* tiling considerations, loading adjacant maps as needed.
2097	* This is the function should always be used when it	1225	* This is the function should always be used when it
2098	* necessary to check for valid coordinates.	1226	* necessary to check for valid coordinates.
2099	* This function will recursively call itself for the	1227	* This function will recursively call itself for the
2100	* tiled maps.	1228	* tiled maps.
2101	*
2102	*
2103	*/	1229	*/
2104	int	1230	int
2105	out_of_map (maptile *m, int x, int y)	1231	out_of_map (maptile *m, int x, int y)
2106	{	1232	{
2107	/* If we get passed a null map, this is obviously the	1233	/* If we get passed a null map, this is obviously the
…		…
2111	if (!m)	1237	if (!m)
2112	return 0;	1238	return 0;
2113		1239
2114	if (x < 0)	1240	if (x < 0)
2115	{	1241	{
2116	if (!m->tile_path[3])	1242	if (!m->tile_available (3))
2117	return 1;	1243	return 1;
2118		1244
2119	if (!m->tile_map[3] || m->tile_map[3]->in_memory != MAP_IN_MEMORY)
2120	load_and_link_tiled_map (m, 3);
2121
2122	return (out_of_map (m->tile_map[3], x + MAP_WIDTH (m->tile_map[3]), y));	1245	return out_of_map (m->tile_map[3], x + m->tile_map[3]->width, y);
2123	}
2124
2125	if (x >= MAP_WIDTH (m))
2126	{	1246	}
2127	if (!m->tile_path[1])	1247
		1248	if (x >= m->width)
		1249	{
		1250	if (!m->tile_available (1))
2128	return 1;	1251	return 1;
2129		1252
2130	if (!m->tile_map[1] || m->tile_map[1]->in_memory != MAP_IN_MEMORY)
2131	load_and_link_tiled_map (m, 1);
2132
2133	return (out_of_map (m->tile_map[1], x - MAP_WIDTH (m), y));	1253	return out_of_map (m->tile_map[1], x - m->width, y);
2134	}	1254	}
2135		1255
2136	if (y < 0)	1256	if (y < 0)
2137	{	1257	{
2138	if (!m->tile_path[0])	1258	if (!m->tile_available (0))
2139	return 1;	1259	return 1;
2140		1260
2141	if (!m->tile_map[0] || m->tile_map[0]->in_memory != MAP_IN_MEMORY)
2142	load_and_link_tiled_map (m, 0);
2143
2144	return (out_of_map (m->tile_map[0], x, y + MAP_HEIGHT (m->tile_map[0])));	1261	return out_of_map (m->tile_map[0], x, y + m->tile_map[0]->height);
2145	}
2146
2147	if (y >= MAP_HEIGHT (m))
2148	{	1262	}
2149	if (!m->tile_path[2])	1263
		1264	if (y >= m->height)
		1265	{
		1266	if (!m->tile_available (2))
2150	return 1;	1267	return 1;
2151		1268
2152	if (!m->tile_map[2] || m->tile_map[2]->in_memory != MAP_IN_MEMORY)
2153	load_and_link_tiled_map (m, 2);
2154
2155	return (out_of_map (m->tile_map[2], x, y - MAP_HEIGHT (m)));	1269	return out_of_map (m->tile_map[2], x, y - m->height);
2156	}	1270	}
2157		1271
2158	/* Simple case - coordinates are within this local	1272	/* Simple case - coordinates are within this local
2159	* map.	1273	* map.
2160	*/	1274	*/
…		…
2163		1277
2164	/* This is basically the same as out_of_map above, but	1278	/* This is basically the same as out_of_map above, but
2165	* instead we return NULL if no map is valid (coordinates	1279	* instead we return NULL if no map is valid (coordinates
2166	* out of bounds and no tiled map), otherwise it returns	1280	* out of bounds and no tiled map), otherwise it returns
2167	* the map as that the coordinates are really on, and	1281	* the map as that the coordinates are really on, and
2168	* updates x and y to be the localized coordinates.	1282	* updates x and y to be the localised coordinates.
2169	* Using this is more efficient of calling out_of_map	1283	* Using this is more efficient of calling out_of_map
2170	* and then figuring out what the real map is	1284	* and then figuring out what the real map is
2171	*/	1285	*/
2172	maptile *	1286	maptile *
2173	get_map_from_coord (maptile *m, sint16 * x, sint16 * y)	1287	maptile::xy_find (sint16 &x, sint16 &y)
2174	{	1288	{
2175
2176	if (*x < 0)	1289	if (x < 0)
2177	{	1290	{
2178	if (!m->tile_path[3])	1291	if (!tile_available (3))
2179	return 0;	1292	return 0;
2180	if (!m->tile_map[3] || m->tile_map[3]->in_memory != MAP_IN_MEMORY)
2181	load_and_link_tiled_map (m, 3);
2182		1293
2183	*x += MAP_WIDTH (m->tile_map[3]);	1294	x += tile_map[3]->width;
2184	return (get_map_from_coord (m->tile_map[3], x, y));	1295	return tile_map[3]->xy_find (x, y);
2185	}
2186
2187	if (*x >= MAP_WIDTH (m))
2188	{	1296	}
2189	if (!m->tile_path[1])	1297
		1298	if (x >= width)
		1299	{
		1300	if (!tile_available (1))
2190	return 0;	1301	return 0;
2191		1302
2192	if (!m->tile_map[1] || m->tile_map[1]->in_memory != MAP_IN_MEMORY)	1303	x -= width;
2193	load_and_link_tiled_map (m, 1);	1304	return tile_map[1]->xy_find (x, y);
2194
2195	*x -= MAP_WIDTH (m);
2196	return (get_map_from_coord (m->tile_map[1], x, y));
2197	}	1305	}
2198		1306
2199	if (*y < 0)	1307	if (y < 0)
2200	{	1308	{
2201	if (!m->tile_path[0])	1309	if (!tile_available (0))
2202	return 0;	1310	return 0;
2203		1311
2204	if (!m->tile_map[0] || m->tile_map[0]->in_memory != MAP_IN_MEMORY)	1312	y += tile_map[0]->height;
2205	load_and_link_tiled_map (m, 0);	1313	return tile_map[0]->xy_find (x, y);
2206
2207	*y += MAP_HEIGHT (m->tile_map[0]);
2208	return (get_map_from_coord (m->tile_map[0], x, y));
2209	}
2210
2211	if (*y >= MAP_HEIGHT (m))
2212	{	1314	}
2213	if (!m->tile_path[2])	1315
		1316	if (y >= height)
		1317	{
		1318	if (!tile_available (2))
2214	return 0;	1319	return 0;
2215		1320
2216	if (!m->tile_map[2] || m->tile_map[2]->in_memory != MAP_IN_MEMORY)	1321	y -= height;
2217	load_and_link_tiled_map (m, 2);	1322	return tile_map[2]->xy_find (x, y);
2218
2219	*y -= MAP_HEIGHT (m);
2220	return (get_map_from_coord (m->tile_map[2], x, y));
2221	}	1323	}
2222		1324
2223	/* Simple case - coordinates are within this local	1325	/* Simple case - coordinates are within this local
2224	* map.	1326	* map.
2225	*/	1327	*/
2226
2227	return m;	1328	return this;
2228	}	1329	}
2229		1330
2230	/**	1331	/**
2231	* Return whether map2 is adjacent to map1. If so, store the distance from	1332	* Return whether map2 is adjacent to map1. If so, store the distance from
2232	* map1 to map2 in dx/dy.	1333	* map1 to map2 in dx/dy.
2233	*/	1334	*/
2234	static int	1335	int
2235	adjacent_map (const maptile *map1, const maptile *map2, int *dx, int *dy)	1336	adjacent_map (maptile *map1, maptile *map2, int *dx, int *dy)
2236	{	1337	{
2237	if (!map1 || !map2)	1338	if (!map1 || !map2)
2238	return 0;	1339	return 0;
2239		1340
		1341	//TODO: this doesn't actually check correctly when intermediate maps are not loaded
		1342	//fix: compare paths instead (this is likely faster, too!)
2240	if (map1 == map2)	1343	if (map1 == map2)
2241	{	1344	{
2242	*dx = 0;	1345	*dx = 0;
2243	*dy = 0;	1346	*dy = 0;
2244		1347	}
		1348	else if (map1->tile_available (TILE_NORTH, false) == map2)
2245	}	1349	{
2246	else if (map1->tile_map[0] == map2)
2247	{ /* up */
2248	*dx = 0;	1350	*dx = 0;
2249	*dy = -MAP_HEIGHT (map2);	1351	*dy = -map2->height;
		1352	}
		1353	else if (map1->tile_available (TILE_EAST , false) == map2)
2250	}	1354	{
2251	else if (map1->tile_map[1] == map2)	1355	*dx = map1->width;
2252	{ /* right */
2253	*dx = MAP_WIDTH (map1);
2254	*dy = 0;	1356	*dy = 0;
2255	}	1357	}
2256	else if (map1->tile_map[2] == map2)	1358	else if (map1->tile_available (TILE_SOUTH, false) == map2)
2257	{ /* down */	1359	{
2258	*dx = 0;	1360	*dx = 0;
2259	*dy = MAP_HEIGHT (map1);	1361	*dy = map1->height;
		1362	}
		1363	else if (map1->tile_available (TILE_WEST , false) == map2)
2260	}	1364	{
2261	else if (map1->tile_map[3] == map2)	1365	*dx = -map2->width;
2262	{ /* left */
2263	*dx = -MAP_WIDTH (map2);
2264	*dy = 0;	1366	*dy = 0;
2265
2266	}	1367	}
2267	else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[1] == map2)	1368	else if (map1->tile_map[TILE_NORTH] && map1->tile_map[TILE_NORTH]->tile_available (TILE_EAST , false) == map2)
2268	{ /* up right */	1369	{ /* up right */
2269	*dx = MAP_WIDTH (map1->tile_map[0]);	1370	*dx = +map1->tile_map[TILE_NORTH]->width;
2270	*dy = -MAP_HEIGHT (map1->tile_map[0]);	1371	*dy = -map1->tile_map[TILE_NORTH]->height;
2271	}	1372	}
2272	else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[3] == map2)	1373	else if (map1->tile_map[TILE_NORTH] && map1->tile_map[TILE_NORTH]->tile_available (TILE_WEST , false) == map2)
2273	{ /* up left */	1374	{ /* up left */
2274	*dx = -MAP_WIDTH (map2);	1375	*dx = -map2->width;
2275	*dy = -MAP_HEIGHT (map1->tile_map[0]);	1376	*dy = -map1->tile_map[TILE_NORTH]->height;
2276	}	1377	}
2277	else if (map1->tile_map[1] && map1->tile_map[1]->tile_map[0] == map2)	1378	else if (map1->tile_map[TILE_EAST ] && map1->tile_map[TILE_EAST ]->tile_available (TILE_NORTH, false) == map2)
2278	{ /* right up */	1379	{ /* right up */
2279	*dx = MAP_WIDTH (map1);	1380	*dx = +map1->width;
2280	*dy = -MAP_HEIGHT (map2);	1381	*dy = -map2->height;
2281	}	1382	}
2282	else if (map1->tile_map[1] && map1->tile_map[1]->tile_map[2] == map2)	1383	else if (map1->tile_map[TILE_EAST ] && map1->tile_map[TILE_EAST ]->tile_available (TILE_SOUTH, false) == map2)
2283	{ /* right down */	1384	{ /* right down */
2284	*dx = MAP_WIDTH (map1);	1385	*dx = +map1->width;
2285	*dy = MAP_HEIGHT (map1->tile_map[1]);	1386	*dy = +map1->tile_map[TILE_EAST]->height;
2286	}	1387	}
2287	else if (map1->tile_map[2] && map1->tile_map[2]->tile_map[1] == map2)	1388	else if (map1->tile_map[TILE_SOUTH] && map1->tile_map[TILE_SOUTH]->tile_available (TILE_EAST , false) == map2)
2288	{ /* down right */	1389	{ /* down right */
2289	*dx = MAP_WIDTH (map1->tile_map[2]);	1390	*dx = +map1->tile_map[TILE_SOUTH]->width;
2290	*dy = MAP_HEIGHT (map1);	1391	*dy = +map1->height;
2291	}	1392	}
2292	else if (map1->tile_map[2] && map1->tile_map[2]->tile_map[3] == map2)	1393	else if (map1->tile_map[TILE_SOUTH] && map1->tile_map[TILE_SOUTH]->tile_available (TILE_WEST , false) == map2)
2293	{ /* down left */	1394	{ /* down left */
2294	*dx = -MAP_WIDTH (map2);	1395	*dx = -map2->width;
2295	*dy = MAP_HEIGHT (map1);	1396	*dy = +map1->height;
2296	}	1397	}
2297	else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[0] == map2)	1398	else if (map1->tile_map[TILE_WEST ] && map1->tile_map[TILE_WEST ]->tile_available (TILE_NORTH, false) == map2)
2298	{ /* left up */	1399	{ /* left up */
2299	*dx = -MAP_WIDTH (map1->tile_map[3]);	1400	*dx = -map1->tile_map[TILE_WEST]->width;
2300	*dy = -MAP_HEIGHT (map2);	1401	*dy = -map2->height;
2301	}	1402	}
2302	else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[2] == map2)	1403	else if (map1->tile_map[TILE_WEST ] && map1->tile_map[TILE_WEST ]->tile_available (TILE_SOUTH, false) == map2)
2303	{ /* left down */	1404	{ /* left down */
2304	*dx = -MAP_WIDTH (map1->tile_map[3]);	1405	*dx = -map1->tile_map[TILE_WEST]->width;
2305	*dy = MAP_HEIGHT (map1->tile_map[3]);	1406	*dy = +map1->tile_map[TILE_WEST]->height;
2306
2307	}	1407	}
2308	else	1408	else
2309	{ /* not "adjacent" enough */
2310	return 0;	1409	return 0;
2311	}
2312		1410
2313	return 1;	1411	return 1;
		1412	}
		1413
		1414	maptile *
		1415	maptile::xy_load (sint16 &x, sint16 &y)
		1416	{
		1417	maptile *map = xy_find (x, y);
		1418
		1419	if (map)
		1420	map->load_sync ();
		1421
		1422	return map;
		1423	}
		1424
		1425	maptile *
		1426	get_map_from_coord (maptile *m, sint16 *x, sint16 *y)
		1427	{
		1428	return m->xy_load (*x, *y);
2314	}	1429	}
2315		1430
2316	/* From map.c	1431	/* From map.c
2317	* This is used by get_player to determine where the other	1432	* This is used by get_player to determine where the other
2318	* creature is. get_rangevector takes into account map tiling,	1433	* creature is. get_rangevector takes into account map tiling,
2319	* so you just can not look the the map coordinates and get the	1434	* so you just can not look the the map coordinates and get the
2320	* righte value. distance_x/y are distance away, which	1435	* righte value. distance_x/y are distance away, which
2321	* can be negativbe. direction is the crossfire direction scheme	1436	* can be negative. direction is the crossfire direction scheme
2322	* that the creature should head. part is the part of the	1437	* that the creature should head. part is the part of the
2323	* monster that is closest.	1438	* monster that is closest.
2324	*	1439	*
2325	* get_rangevector looks at op1 and op2, and fills in the	1440	* get_rangevector looks at op1 and op2, and fills in the
2326	* structure for op1 to get to op2.	1441	* structure for op1 to get to op2.
…		…
2331	* be unexpected	1446	* be unexpected
2332	*	1447	*
2333	* currently, the only flag supported (0x1) is don't translate for	1448	* currently, the only flag supported (0x1) is don't translate for
2334	* closest body part of 'op1'	1449	* closest body part of 'op1'
2335	*/	1450	*/
2336
2337	void	1451	void
2338	get_rangevector (object *op1, object *op2, rv_vector * retval, int flags)	1452	get_rangevector (object *op1, object *op2, rv_vector *retval, int flags)
2339	{	1453	{
2340	if (!adjacent_map (op1->map, op2->map, &retval->distance_x, &retval->distance_y))	1454	if (!adjacent_map (op1->map, op2->map, &retval->distance_x, &retval->distance_y))
2341	{	1455	{
2342	/* be conservative and fill in _some_ data */	1456	/* be conservative and fill in _some_ data */
2343	retval->distance = 100000;	1457	retval->distance = 10000;
2344	retval->distance_x = 32767;	1458	retval->distance_x = 10000;
2345	retval->distance_y = 32767;	1459	retval->distance_y = 10000;
2346	retval->direction = 0;	1460	retval->direction = 0;
2347	retval->part = 0;	1461	retval->part = 0;
2348	}	1462	}
2349	else	1463	else
2350	{	1464	{
2351	object *best;
2352
2353	retval->distance_x += op2->x - op1->x;	1465	retval->distance_x += op2->x - op1->x;
2354	retval->distance_y += op2->y - op1->y;	1466	retval->distance_y += op2->y - op1->y;
2355		1467
2356	best = op1;	1468	object *best = op1;
		1469
2357	/* If this is multipart, find the closest part now */	1470	/* If this is multipart, find the closest part now */
2358	if (!(flags & 0x1) && op1->more)	1471	if (!(flags & 1) && op1->more)
2359	{	1472	{
2360	object *tmp;	1473	int best_distance = idistance (retval->distance_x, retval->distance_y);
2361	int best_distance = retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y, tmpi;
2362		1474
2363	/* we just take the offset of the piece to head to figure	1475	/* we just take the offset of the piece to head to figure
2364	* distance instead of doing all that work above again	1476	* distance instead of doing all that work above again
2365	* since the distance fields we set above are positive in the	1477	* since the distance fields we set above are positive in the
2366	* same axis as is used for multipart objects, the simply arithmetic	1478	* same axis as is used for multipart objects, the simply arithmetic
2367	* below works.	1479	* below works.
2368	*/	1480	*/
2369	for (tmp = op1->more; tmp != NULL; tmp = tmp->more)	1481	for (object *tmp = op1->more; tmp; tmp = tmp->more)
2370	{	1482	{
2371	tmpi = (op1->x - tmp->x + retval->distance_x) * (op1->x - tmp->x + retval->distance_x) +	1483	int tmpi = idistance (op1->x - tmp->x + retval->distance_x, op1->y - tmp->y + retval->distance_y);
2372	(op1->y - tmp->y + retval->distance_y) * (op1->y - tmp->y + retval->distance_y);	1484
2373	if (tmpi < best_distance)	1485	if (tmpi < best_distance)
2374	{	1486	{
2375	best_distance = tmpi;	1487	best_distance = tmpi;
2376	best = tmp;	1488	best = tmp;
2377	}	1489	}
2378	}	1490	}
		1491
2379	if (best != op1)	1492	if (best != op1)
2380	{	1493	{
2381	retval->distance_x += op1->x - best->x;	1494	retval->distance_x += op1->x - best->x;
2382	retval->distance_y += op1->y - best->y;	1495	retval->distance_y += op1->y - best->y;
2383	}	1496	}
2384	}	1497	}
		1498
2385	retval->part = best;	1499	retval->part = best;
2386	retval->distance = isqrt (retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y);	1500	retval->distance = upos_max (abs (retval->distance_x), abs (retval->distance_y));
2387	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);	1501	retval->direction = find_dir_2 (retval->distance_x, retval->distance_y);
2388	}	1502	}
2389	}	1503	}
2390		1504
2391	/* this is basically the same as get_rangevector above, but instead of	1505	/* this is basically the same as get_rangevector above, but instead of
2392	* the first parameter being an object, it instead is the map	1506	* the first parameter being an object, it instead is the map
…		…
2396	* flags has no meaning for this function at this time - I kept it in to	1510	* flags has no meaning for this function at this time - I kept it in to
2397	* be more consistant with the above function and also in case they are needed	1511	* be more consistant with the above function and also in case they are needed
2398	* for something in the future. Also, since no object is pasted, the best	1512	* for something in the future. Also, since no object is pasted, the best
2399	* field of the rv_vector is set to NULL.	1513	* field of the rv_vector is set to NULL.
2400	*/	1514	*/
2401
2402	void	1515	void
2403	get_rangevector_from_mapcoord (const maptile *m, int x, int y, const object *op2, rv_vector * retval, int flags)	1516	get_rangevector_from_mapcoord (maptile *m, int x, int y, const object *op2, rv_vector *retval, int flags)
2404	{	1517	{
2405	if (!adjacent_map (m, op2->map, &retval->distance_x, &retval->distance_y))	1518	if (!adjacent_map (m, op2->map, &retval->distance_x, &retval->distance_y))
2406	{	1519	{
2407	/* be conservative and fill in _some_ data */	1520	/* be conservative and fill in _some_ data */
2408	retval->distance = 100000;	1521	retval->distance = 100000;
2409	retval->distance_x = 32767;	1522	retval->distance_x = 32767;
2410	retval->distance_y = 32767;	1523	retval->distance_y = 32767;
2411	retval->direction = 0;	1524	retval->direction = 0;
2412	retval->part = 0;	1525	retval->part = 0;
2413	}	1526	}
2414	else	1527	else
2415	{	1528	{
2416	retval->distance_x += op2->x - x;	1529	retval->distance_x += op2->x - x;
2417	retval->distance_y += op2->y - y;	1530	retval->distance_y += op2->y - y;
2418		1531
2419	retval->part = NULL;	1532	retval->part = 0;
2420	retval->distance = isqrt (retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y);	1533	retval->distance = upos_max (abs (retval->distance_x), abs (retval->distance_y));
2421	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);	1534	retval->direction = find_dir_2 (retval->distance_x, retval->distance_y);
2422	}	1535	}
2423	}	1536	}
2424		1537
2425	/* Returns true of op1 and op2 are effectively on the same map	1538	/* Returns true of op1 and op2 are effectively on the same map
2426	* (as related to map tiling). Note that this looks for a path from	1539	* (as related to map tiling). Note that this looks for a path from
2427	* op1 to op2, so if the tiled maps are assymetric and op2 has a path	1540	* op1 to op2, so if the tiled maps are asymetric and op2 has a path
2428	* to op1, this will still return false.	1541	* to op1, this will still return false.
2429	* Note we only look one map out to keep the processing simple	1542	* Note we only look one map out to keep the processing simple
2430	* and efficient. This could probably be a macro.	1543	* and efficient. This could probably be a macro.
2431	* MSW 2001-08-05	1544	* MSW 2001-08-05
2432	*/	1545	*/
…		…
2435	{	1548	{
2436	int dx, dy;	1549	int dx, dy;
2437		1550
2438	return adjacent_map (op1->map, op2->map, &dx, &dy);	1551	return adjacent_map (op1->map, op2->map, &dx, &dy);
2439	}	1552	}
		1553
		1554	//-GPL
		1555
		1556	object *
		1557	maptile::insert (object *op, int x, int y, object *originator, int flags)
		1558	{
		1559	return insert_ob_in_map_at (op, this, originator, flags, x, y);
		1560	}
		1561
		1562	region *
		1563	maptile::region (int x, int y) const
		1564	{
		1565	if (regions
		1566	&& regionmap
		1567	&& !OUT_OF_REAL_MAP (this, x, y))
		1568	if (struct region *reg = regionmap [regions [y * width + x]])
		1569	return reg;
		1570
		1571	if (default_region)
		1572	return default_region;
		1573
		1574	return ::region::default_region ();
		1575	}
		1576
		1577	//+GPL
		1578
		1579	/* picks a random object from a style map.
		1580	*/
		1581	object *
		1582	maptile::pick_random_object (rand_gen &gen) const
		1583	{
		1584	/* while returning a null object will result in a crash, that
		1585	* is actually preferable to an infinite loop. That is because
		1586	* most servers will automatically restart in case of crash.
		1587	* Change the logic on getting the random space - shouldn't make
		1588	* any difference, but this seems clearer to me.
		1589	*/
		1590	for (int i = 1000; --i;)
		1591	{
		1592	object *pick = at (gen (width), gen (height)).bot;
		1593
		1594	// must be head: do not prefer big monsters just because they are big.
		1595	if (pick && pick->is_head ())
		1596	return pick;
		1597	}
		1598
		1599	// instead of crashing in the unlikely(?) case, try to return *something*
		1600	return archetype::find (shstr_bug);
		1601	}
		1602
		1603	//-GPL
		1604
		1605	void
		1606	maptile::play_sound (faceidx sound, int x, int y) const
		1607	{
		1608	if (!sound)
		1609	return;
		1610
		1611	for_all_players_on_map (pl, this)
		1612	if (client *ns = pl->ns)
		1613	{
		1614	int dx = x - pl->ob->x;
		1615	int dy = y - pl->ob->y;
		1616
		1617	int distance = idistance (dx, dy);
		1618
		1619	if (distance <= MAX_SOUND_DISTANCE)
		1620	ns->play_sound (sound, dx, dy);
		1621	}
		1622	}
		1623
		1624	void
		1625	maptile::say_msg (const char *msg, int x, int y) const
		1626	{
		1627	for_all_players (pl)
		1628	if (client *ns = pl->ns)
		1629	{
		1630	int dx = x - pl->ob->x;
		1631	int dy = y - pl->ob->y;
		1632
		1633	int distance = idistance (dx, dy);
		1634
		1635	if (distance <= MAX_SOUND_DISTANCE)
		1636	ns->send_msg (NDI_GREY | NDI_DEF, SAY_CHANNEL, msg);
		1637	}
		1638	}
		1639
		1640	dynbuf mapwalk_buf (sizeof (maprect) * 25, sizeof (maprect) * 25);
		1641
		1642	static void
		1643	split_to_tiles (dynbuf &buf, maptile *m, int x0, int y0, int x1, int y1, int dx, int dy)
		1644	{
		1645	// clip to map to the left
		1646	if (x0 < 0)
		1647	{
		1648	if (maptile *tile = m->tile_available (TILE_WEST, 1))
		1649	split_to_tiles (buf, tile, x0 + tile->width, y0, min (x1 + tile->width, tile->width), y1, dx - tile->width, dy);
		1650
		1651	if (x1 < 0) // entirely to the left
		1652	return;
		1653
		1654	x0 = 0;
		1655	}
		1656
		1657	// clip to map to the right
		1658	if (x1 > m->width)
		1659	{
		1660	if (maptile *tile = m->tile_available (TILE_EAST, 1))
		1661	split_to_tiles (buf, tile, max (x0 - m->width, 0), y0, x1 - m->width, y1, dx + m->width, dy);
		1662
		1663	if (x0 > m->width) // entirely to the right
		1664	return;
		1665
		1666	x1 = m->width;
		1667	}
		1668
		1669	// clip to map above
		1670	if (y0 < 0)
		1671	{
		1672	if (maptile *tile = m->tile_available (TILE_NORTH, 1))
		1673	split_to_tiles (buf, tile, x0, y0 + tile->height, x1, min (y1 + tile->height, tile->height), dx, dy - tile->height);
		1674
		1675	if (y1 < 0) // entirely above
		1676	return;
		1677
		1678	y0 = 0;
		1679	}
		1680
		1681	// clip to map below
		1682	if (y1 > m->height)
		1683	{
		1684	if (maptile *tile = m->tile_available (TILE_SOUTH, 1))
		1685	split_to_tiles (buf, tile, x0, max (y0 - m->height, 0), x1, y1 - m->height, dx, dy + m->height);
		1686
		1687	if (y0 > m->height) // entirely below
		1688	return;
		1689
		1690	y1 = m->height;
		1691	}
		1692
		1693	// if we get here, the rect is within the current map
		1694	maprect *r = (maprect *)buf.alloc (sizeof (maprect));
		1695
		1696	r->m = m;
		1697	r->x0 = x0;
		1698	r->y0 = y0;
		1699	r->x1 = x1;
		1700	r->y1 = y1;
		1701	r->dx = dx;
		1702	r->dy = dy;
		1703	}
		1704
		1705	maprect *
		1706	maptile::split_to_tiles (dynbuf &buf, int x0, int y0, int x1, int y1)
		1707	{
		1708	buf.clear ();
		1709
		1710	::split_to_tiles (buf, this, x0, y0, x1, y1, 0, 0);
		1711
		1712	// add end marker
		1713	maprect *r = (maprect *)buf.alloc (sizeof (maprect));
		1714	r->m = 0;
		1715
		1716	return (maprect *)buf.linearise ();
		1717	}
		1718

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